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::TrustedWorktrees,
   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    pane_history_timestamp: Arc<AtomicUsize>,
 1192    bounds: Bounds<Pixels>,
 1193    pub centered_layout: bool,
 1194    bounds_save_task_queued: Option<Task<()>>,
 1195    on_prompt_for_new_path: Option<PromptForNewPath>,
 1196    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1197    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1198    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1199    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1200    _items_serializer: Task<Result<()>>,
 1201    session_id: Option<String>,
 1202    scheduled_tasks: Vec<Task<()>>,
 1203    last_open_dock_positions: Vec<DockPosition>,
 1204    removing: bool,
 1205    utility_panes: UtilityPaneState,
 1206}
 1207
 1208impl EventEmitter<Event> for Workspace {}
 1209
 1210#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1211pub struct ViewId {
 1212    pub creator: CollaboratorId,
 1213    pub id: u64,
 1214}
 1215
 1216pub struct FollowerState {
 1217    center_pane: Entity<Pane>,
 1218    dock_pane: Option<Entity<Pane>>,
 1219    active_view_id: Option<ViewId>,
 1220    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1221}
 1222
 1223struct FollowerView {
 1224    view: Box<dyn FollowableItemHandle>,
 1225    location: Option<proto::PanelId>,
 1226}
 1227
 1228impl Workspace {
 1229    pub fn new(
 1230        workspace_id: Option<WorkspaceId>,
 1231        project: Entity<Project>,
 1232        app_state: Arc<AppState>,
 1233        window: &mut Window,
 1234        cx: &mut Context<Self>,
 1235    ) -> Self {
 1236        cx.observe_global::<SettingsStore>(|_, cx| {
 1237            if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1238                if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1239                    trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1240                        trusted_worktrees.auto_trust_all(cx);
 1241                    })
 1242                }
 1243            }
 1244        })
 1245        .detach();
 1246
 1247        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1248            match event {
 1249                project::Event::RemoteIdChanged(_) => {
 1250                    this.update_window_title(window, cx);
 1251                }
 1252
 1253                project::Event::CollaboratorLeft(peer_id) => {
 1254                    this.collaborator_left(*peer_id, window, cx);
 1255                }
 1256
 1257                project::Event::WorktreeRemoved(_) | project::Event::WorktreeAdded(_) => {
 1258                    this.update_window_title(window, cx);
 1259                    this.serialize_workspace(window, cx);
 1260                    // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 1261                    this.update_history(cx);
 1262                }
 1263
 1264                project::Event::DisconnectedFromHost => {
 1265                    this.update_window_edited(window, cx);
 1266                    let leaders_to_unfollow =
 1267                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1268                    for leader_id in leaders_to_unfollow {
 1269                        this.unfollow(leader_id, window, cx);
 1270                    }
 1271                }
 1272
 1273                project::Event::DisconnectedFromSshRemote => {
 1274                    this.update_window_edited(window, cx);
 1275                }
 1276
 1277                project::Event::Closed => {
 1278                    window.remove_window();
 1279                }
 1280
 1281                project::Event::DeletedEntry(_, entry_id) => {
 1282                    for pane in this.panes.iter() {
 1283                        pane.update(cx, |pane, cx| {
 1284                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1285                        });
 1286                    }
 1287                }
 1288
 1289                project::Event::Toast {
 1290                    notification_id,
 1291                    message,
 1292                } => this.show_notification(
 1293                    NotificationId::named(notification_id.clone()),
 1294                    cx,
 1295                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1296                ),
 1297
 1298                project::Event::HideToast { notification_id } => {
 1299                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1300                }
 1301
 1302                project::Event::LanguageServerPrompt(request) => {
 1303                    struct LanguageServerPrompt;
 1304
 1305                    let mut hasher = DefaultHasher::new();
 1306                    request.lsp_name.as_str().hash(&mut hasher);
 1307                    let id = hasher.finish();
 1308
 1309                    this.show_notification(
 1310                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1311                        cx,
 1312                        |cx| {
 1313                            cx.new(|cx| {
 1314                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1315                            })
 1316                        },
 1317                    );
 1318                }
 1319
 1320                project::Event::AgentLocationChanged => {
 1321                    this.handle_agent_location_changed(window, cx)
 1322                }
 1323
 1324                _ => {}
 1325            }
 1326            cx.notify()
 1327        })
 1328        .detach();
 1329
 1330        cx.subscribe_in(
 1331            &project.read(cx).breakpoint_store(),
 1332            window,
 1333            |workspace, _, event, window, cx| match event {
 1334                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1335                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1336                    workspace.serialize_workspace(window, cx);
 1337                }
 1338                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1339            },
 1340        )
 1341        .detach();
 1342        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1343            cx.subscribe_in(
 1344                &toolchain_store,
 1345                window,
 1346                |workspace, _, event, window, cx| match event {
 1347                    ToolchainStoreEvent::CustomToolchainsModified => {
 1348                        workspace.serialize_workspace(window, cx);
 1349                    }
 1350                    _ => {}
 1351                },
 1352            )
 1353            .detach();
 1354        }
 1355
 1356        cx.on_focus_lost(window, |this, window, cx| {
 1357            let focus_handle = this.focus_handle(cx);
 1358            window.focus(&focus_handle);
 1359        })
 1360        .detach();
 1361
 1362        let weak_handle = cx.entity().downgrade();
 1363        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1364
 1365        let center_pane = cx.new(|cx| {
 1366            let mut center_pane = Pane::new(
 1367                weak_handle.clone(),
 1368                project.clone(),
 1369                pane_history_timestamp.clone(),
 1370                None,
 1371                NewFile.boxed_clone(),
 1372                true,
 1373                window,
 1374                cx,
 1375            );
 1376            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1377            center_pane
 1378        });
 1379        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1380            .detach();
 1381
 1382        window.focus(&center_pane.focus_handle(cx));
 1383
 1384        cx.emit(Event::PaneAdded(center_pane.clone()));
 1385
 1386        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1387        app_state.workspace_store.update(cx, |store, _| {
 1388            store.workspaces.insert(window_handle);
 1389        });
 1390
 1391        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1392        let mut connection_status = app_state.client.status();
 1393        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1394            current_user.next().await;
 1395            connection_status.next().await;
 1396            let mut stream =
 1397                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1398
 1399            while stream.recv().await.is_some() {
 1400                this.update(cx, |_, cx| cx.notify())?;
 1401            }
 1402            anyhow::Ok(())
 1403        });
 1404
 1405        // All leader updates are enqueued and then processed in a single task, so
 1406        // that each asynchronous operation can be run in order.
 1407        let (leader_updates_tx, mut leader_updates_rx) =
 1408            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1409        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1410            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1411                Self::process_leader_update(&this, leader_id, update, cx)
 1412                    .await
 1413                    .log_err();
 1414            }
 1415
 1416            Ok(())
 1417        });
 1418
 1419        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1420        let modal_layer = cx.new(|_| ModalLayer::new());
 1421        let toast_layer = cx.new(|_| ToastLayer::new());
 1422        cx.subscribe(
 1423            &modal_layer,
 1424            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1425                cx.emit(Event::ModalOpened);
 1426            },
 1427        )
 1428        .detach();
 1429
 1430        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1431        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1432        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1433        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1434        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1435        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1436        let status_bar = cx.new(|cx| {
 1437            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1438            status_bar.add_left_item(left_dock_buttons, window, cx);
 1439            status_bar.add_right_item(right_dock_buttons, window, cx);
 1440            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1441            status_bar
 1442        });
 1443
 1444        let session_id = app_state.session.read(cx).id().to_owned();
 1445
 1446        let mut active_call = None;
 1447        if let Some(call) = ActiveCall::try_global(cx) {
 1448            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1449            active_call = Some((call, subscriptions));
 1450        }
 1451
 1452        let (serializable_items_tx, serializable_items_rx) =
 1453            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1454        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1455            Self::serialize_items(&this, serializable_items_rx, cx).await
 1456        });
 1457
 1458        let subscriptions = vec![
 1459            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1460            cx.observe_window_bounds(window, move |this, window, cx| {
 1461                if this.bounds_save_task_queued.is_some() {
 1462                    return;
 1463                }
 1464                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1465                    cx.background_executor()
 1466                        .timer(Duration::from_millis(100))
 1467                        .await;
 1468                    this.update_in(cx, |this, window, cx| {
 1469                        if let Some(display) = window.display(cx)
 1470                            && let Ok(display_uuid) = display.uuid()
 1471                        {
 1472                            let window_bounds = window.inner_window_bounds();
 1473                            if let Some(database_id) = workspace_id {
 1474                                cx.background_executor()
 1475                                    .spawn(DB.set_window_open_status(
 1476                                        database_id,
 1477                                        SerializedWindowBounds(window_bounds),
 1478                                        display_uuid,
 1479                                    ))
 1480                                    .detach_and_log_err(cx);
 1481                            }
 1482                        }
 1483                        this.bounds_save_task_queued.take();
 1484                    })
 1485                    .ok();
 1486                }));
 1487                cx.notify();
 1488            }),
 1489            cx.observe_window_appearance(window, |_, window, cx| {
 1490                let window_appearance = window.appearance();
 1491
 1492                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1493
 1494                GlobalTheme::reload_theme(cx);
 1495                GlobalTheme::reload_icon_theme(cx);
 1496            }),
 1497            cx.on_release(move |this, cx| {
 1498                this.app_state.workspace_store.update(cx, move |store, _| {
 1499                    store.workspaces.remove(&window_handle);
 1500                })
 1501            }),
 1502        ];
 1503
 1504        cx.defer_in(window, move |this, window, cx| {
 1505            this.update_window_title(window, cx);
 1506            this.show_initial_notifications(cx);
 1507        });
 1508
 1509        let mut center = PaneGroup::new(center_pane.clone());
 1510        center.set_is_center(true);
 1511        center.mark_positions(cx);
 1512
 1513        Workspace {
 1514            weak_self: weak_handle.clone(),
 1515            zoomed: None,
 1516            zoomed_position: None,
 1517            previous_dock_drag_coordinates: None,
 1518            center,
 1519            panes: vec![center_pane.clone()],
 1520            panes_by_item: Default::default(),
 1521            active_pane: center_pane.clone(),
 1522            last_active_center_pane: Some(center_pane.downgrade()),
 1523            last_active_view_id: None,
 1524            status_bar,
 1525            modal_layer,
 1526            toast_layer,
 1527            titlebar_item: None,
 1528            notifications: Notifications::default(),
 1529            suppressed_notifications: HashSet::default(),
 1530            left_dock,
 1531            bottom_dock,
 1532            right_dock,
 1533            project: project.clone(),
 1534            follower_states: Default::default(),
 1535            last_leaders_by_pane: Default::default(),
 1536            dispatching_keystrokes: Default::default(),
 1537            window_edited: false,
 1538            last_window_title: None,
 1539            dirty_items: Default::default(),
 1540            active_call,
 1541            database_id: workspace_id,
 1542            app_state,
 1543            _observe_current_user,
 1544            _apply_leader_updates,
 1545            _schedule_serialize_workspace: None,
 1546            _schedule_serialize_ssh_paths: None,
 1547            leader_updates_tx,
 1548            _subscriptions: subscriptions,
 1549            pane_history_timestamp,
 1550            workspace_actions: Default::default(),
 1551            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1552            bounds: Default::default(),
 1553            centered_layout: false,
 1554            bounds_save_task_queued: None,
 1555            on_prompt_for_new_path: None,
 1556            on_prompt_for_open_path: None,
 1557            terminal_provider: None,
 1558            debugger_provider: None,
 1559            serializable_items_tx,
 1560            _items_serializer,
 1561            session_id: Some(session_id),
 1562
 1563            scheduled_tasks: Vec::new(),
 1564            last_open_dock_positions: Vec::new(),
 1565            removing: false,
 1566            utility_panes: UtilityPaneState::default(),
 1567        }
 1568    }
 1569
 1570    pub fn new_local(
 1571        abs_paths: Vec<PathBuf>,
 1572        app_state: Arc<AppState>,
 1573        requesting_window: Option<WindowHandle<Workspace>>,
 1574        env: Option<HashMap<String, String>>,
 1575        cx: &mut App,
 1576    ) -> Task<
 1577        anyhow::Result<(
 1578            WindowHandle<Workspace>,
 1579            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1580        )>,
 1581    > {
 1582        let project_handle = Project::local(
 1583            app_state.client.clone(),
 1584            app_state.node_runtime.clone(),
 1585            app_state.user_store.clone(),
 1586            app_state.languages.clone(),
 1587            app_state.fs.clone(),
 1588            env,
 1589            true,
 1590            cx,
 1591        );
 1592
 1593        cx.spawn(async move |cx| {
 1594            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1595            for path in abs_paths.into_iter() {
 1596                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1597                    paths_to_open.push(canonical)
 1598                } else {
 1599                    paths_to_open.push(path)
 1600                }
 1601            }
 1602
 1603            let serialized_workspace =
 1604                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1605
 1606            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1607                paths_to_open = paths.ordered_paths().cloned().collect();
 1608                if !paths.is_lexicographically_ordered() {
 1609                    project_handle
 1610                        .update(cx, |project, cx| {
 1611                            project.set_worktrees_reordered(true, cx);
 1612                        })
 1613                        .log_err();
 1614                }
 1615            }
 1616
 1617            // Get project paths for all of the abs_paths
 1618            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1619                Vec::with_capacity(paths_to_open.len());
 1620
 1621            for path in paths_to_open.into_iter() {
 1622                if let Some((_, project_entry)) = cx
 1623                    .update(|cx| {
 1624                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1625                    })?
 1626                    .await
 1627                    .log_err()
 1628                {
 1629                    project_paths.push((path, Some(project_entry)));
 1630                } else {
 1631                    project_paths.push((path, None));
 1632                }
 1633            }
 1634
 1635            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1636                serialized_workspace.id
 1637            } else {
 1638                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1639            };
 1640
 1641            let toolchains = DB.toolchains(workspace_id).await?;
 1642
 1643            for (toolchain, worktree_id, path) in toolchains {
 1644                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1645                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1646                    continue;
 1647                }
 1648
 1649                project_handle
 1650                    .update(cx, |this, cx| {
 1651                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1652                    })?
 1653                    .await;
 1654            }
 1655            if let Some(workspace) = serialized_workspace.as_ref() {
 1656                project_handle.update(cx, |this, cx| {
 1657                    for (scope, toolchains) in &workspace.user_toolchains {
 1658                        for toolchain in toolchains {
 1659                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1660                        }
 1661                    }
 1662                })?;
 1663            }
 1664
 1665            let window = if let Some(window) = requesting_window {
 1666                let centered_layout = serialized_workspace
 1667                    .as_ref()
 1668                    .map(|w| w.centered_layout)
 1669                    .unwrap_or(false);
 1670
 1671                cx.update_window(window.into(), |_, window, cx| {
 1672                    window.replace_root(cx, |window, cx| {
 1673                        let mut workspace = Workspace::new(
 1674                            Some(workspace_id),
 1675                            project_handle.clone(),
 1676                            app_state.clone(),
 1677                            window,
 1678                            cx,
 1679                        );
 1680
 1681                        workspace.centered_layout = centered_layout;
 1682                        workspace
 1683                    });
 1684                })?;
 1685                window
 1686            } else {
 1687                let window_bounds_override = window_bounds_env_override();
 1688
 1689                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1690                    (Some(WindowBounds::Windowed(bounds)), None)
 1691                } else if let Some(workspace) = serialized_workspace.as_ref() {
 1692                    // Reopening an existing workspace - restore its saved bounds
 1693                    if let (Some(display), Some(bounds)) =
 1694                        (workspace.display, workspace.window_bounds.as_ref())
 1695                    {
 1696                        (Some(bounds.0), Some(display))
 1697                    } else {
 1698                        (None, None)
 1699                    }
 1700                } else {
 1701                    // New window - let GPUI's default_bounds() handle cascading
 1702                    (None, None)
 1703                };
 1704
 1705                // Use the serialized workspace to construct the new window
 1706                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1707                options.window_bounds = window_bounds;
 1708                let centered_layout = serialized_workspace
 1709                    .as_ref()
 1710                    .map(|w| w.centered_layout)
 1711                    .unwrap_or(false);
 1712                cx.open_window(options, {
 1713                    let app_state = app_state.clone();
 1714                    let project_handle = project_handle.clone();
 1715                    move |window, cx| {
 1716                        cx.new(|cx| {
 1717                            let mut workspace = Workspace::new(
 1718                                Some(workspace_id),
 1719                                project_handle,
 1720                                app_state,
 1721                                window,
 1722                                cx,
 1723                            );
 1724                            workspace.centered_layout = centered_layout;
 1725                            workspace
 1726                        })
 1727                    }
 1728                })?
 1729            };
 1730
 1731            notify_if_database_failed(window, cx);
 1732            let opened_items = window
 1733                .update(cx, |_workspace, window, cx| {
 1734                    open_items(serialized_workspace, project_paths, window, cx)
 1735                })?
 1736                .await
 1737                .unwrap_or_default();
 1738
 1739            window
 1740                .update(cx, |workspace, window, cx| {
 1741                    window.activate_window();
 1742                    workspace.update_history(cx);
 1743                })
 1744                .log_err();
 1745            Ok((window, opened_items))
 1746        })
 1747    }
 1748
 1749    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1750        self.weak_self.clone()
 1751    }
 1752
 1753    pub fn left_dock(&self) -> &Entity<Dock> {
 1754        &self.left_dock
 1755    }
 1756
 1757    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1758        &self.bottom_dock
 1759    }
 1760
 1761    pub fn set_bottom_dock_layout(
 1762        &mut self,
 1763        layout: BottomDockLayout,
 1764        window: &mut Window,
 1765        cx: &mut Context<Self>,
 1766    ) {
 1767        let fs = self.project().read(cx).fs();
 1768        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1769            content.workspace.bottom_dock_layout = Some(layout);
 1770        });
 1771
 1772        cx.notify();
 1773        self.serialize_workspace(window, cx);
 1774    }
 1775
 1776    pub fn right_dock(&self) -> &Entity<Dock> {
 1777        &self.right_dock
 1778    }
 1779
 1780    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1781        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1782    }
 1783
 1784    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1785        match position {
 1786            DockPosition::Left => &self.left_dock,
 1787            DockPosition::Bottom => &self.bottom_dock,
 1788            DockPosition::Right => &self.right_dock,
 1789        }
 1790    }
 1791
 1792    pub fn is_edited(&self) -> bool {
 1793        self.window_edited
 1794    }
 1795
 1796    pub fn add_panel<T: Panel>(
 1797        &mut self,
 1798        panel: Entity<T>,
 1799        window: &mut Window,
 1800        cx: &mut Context<Self>,
 1801    ) {
 1802        let focus_handle = panel.panel_focus_handle(cx);
 1803        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1804            .detach();
 1805
 1806        let dock_position = panel.position(window, cx);
 1807        let dock = self.dock_at_position(dock_position);
 1808
 1809        dock.update(cx, |dock, cx| {
 1810            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1811        });
 1812    }
 1813
 1814    pub fn remove_panel<T: Panel>(
 1815        &mut self,
 1816        panel: &Entity<T>,
 1817        window: &mut Window,
 1818        cx: &mut Context<Self>,
 1819    ) {
 1820        let mut found_in_dock = None;
 1821        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1822            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1823
 1824            if found {
 1825                found_in_dock = Some(dock.clone());
 1826            }
 1827        }
 1828        if let Some(found_in_dock) = found_in_dock {
 1829            let position = found_in_dock.read(cx).position();
 1830            let slot = utility_slot_for_dock_position(position);
 1831            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1832        }
 1833    }
 1834
 1835    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1836        &self.status_bar
 1837    }
 1838
 1839    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1840        StatusBarSettings::get_global(cx).show
 1841    }
 1842
 1843    pub fn app_state(&self) -> &Arc<AppState> {
 1844        &self.app_state
 1845    }
 1846
 1847    pub fn user_store(&self) -> &Entity<UserStore> {
 1848        &self.app_state.user_store
 1849    }
 1850
 1851    pub fn project(&self) -> &Entity<Project> {
 1852        &self.project
 1853    }
 1854
 1855    pub fn path_style(&self, cx: &App) -> PathStyle {
 1856        self.project.read(cx).path_style(cx)
 1857    }
 1858
 1859    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1860        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1861
 1862        for pane_handle in &self.panes {
 1863            let pane = pane_handle.read(cx);
 1864
 1865            for entry in pane.activation_history() {
 1866                history.insert(
 1867                    entry.entity_id,
 1868                    history
 1869                        .get(&entry.entity_id)
 1870                        .cloned()
 1871                        .unwrap_or(0)
 1872                        .max(entry.timestamp),
 1873                );
 1874            }
 1875        }
 1876
 1877        history
 1878    }
 1879
 1880    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1881        let mut recent_item: Option<Entity<T>> = None;
 1882        let mut recent_timestamp = 0;
 1883        for pane_handle in &self.panes {
 1884            let pane = pane_handle.read(cx);
 1885            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1886                pane.items().map(|item| (item.item_id(), item)).collect();
 1887            for entry in pane.activation_history() {
 1888                if entry.timestamp > recent_timestamp
 1889                    && let Some(&item) = item_map.get(&entry.entity_id)
 1890                    && let Some(typed_item) = item.act_as::<T>(cx)
 1891                {
 1892                    recent_timestamp = entry.timestamp;
 1893                    recent_item = Some(typed_item);
 1894                }
 1895            }
 1896        }
 1897        recent_item
 1898    }
 1899
 1900    pub fn recent_navigation_history_iter(
 1901        &self,
 1902        cx: &App,
 1903    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1904        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1905        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1906
 1907        for pane in &self.panes {
 1908            let pane = pane.read(cx);
 1909
 1910            pane.nav_history()
 1911                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1912                    if let Some(fs_path) = &fs_path {
 1913                        abs_paths_opened
 1914                            .entry(fs_path.clone())
 1915                            .or_default()
 1916                            .insert(project_path.clone());
 1917                    }
 1918                    let timestamp = entry.timestamp;
 1919                    match history.entry(project_path) {
 1920                        hash_map::Entry::Occupied(mut entry) => {
 1921                            let (_, old_timestamp) = entry.get();
 1922                            if &timestamp > old_timestamp {
 1923                                entry.insert((fs_path, timestamp));
 1924                            }
 1925                        }
 1926                        hash_map::Entry::Vacant(entry) => {
 1927                            entry.insert((fs_path, timestamp));
 1928                        }
 1929                    }
 1930                });
 1931
 1932            if let Some(item) = pane.active_item()
 1933                && let Some(project_path) = item.project_path(cx)
 1934            {
 1935                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1936
 1937                if let Some(fs_path) = &fs_path {
 1938                    abs_paths_opened
 1939                        .entry(fs_path.clone())
 1940                        .or_default()
 1941                        .insert(project_path.clone());
 1942                }
 1943
 1944                history.insert(project_path, (fs_path, std::usize::MAX));
 1945            }
 1946        }
 1947
 1948        history
 1949            .into_iter()
 1950            .sorted_by_key(|(_, (_, order))| *order)
 1951            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1952            .rev()
 1953            .filter(move |(history_path, abs_path)| {
 1954                let latest_project_path_opened = abs_path
 1955                    .as_ref()
 1956                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1957                    .and_then(|project_paths| {
 1958                        project_paths
 1959                            .iter()
 1960                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1961                    });
 1962
 1963                latest_project_path_opened.is_none_or(|path| path == history_path)
 1964            })
 1965    }
 1966
 1967    pub fn recent_navigation_history(
 1968        &self,
 1969        limit: Option<usize>,
 1970        cx: &App,
 1971    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 1972        self.recent_navigation_history_iter(cx)
 1973            .take(limit.unwrap_or(usize::MAX))
 1974            .collect()
 1975    }
 1976
 1977    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 1978        for pane in &self.panes {
 1979            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 1980        }
 1981    }
 1982
 1983    fn navigate_history(
 1984        &mut self,
 1985        pane: WeakEntity<Pane>,
 1986        mode: NavigationMode,
 1987        window: &mut Window,
 1988        cx: &mut Context<Workspace>,
 1989    ) -> Task<Result<()>> {
 1990        let to_load = if let Some(pane) = pane.upgrade() {
 1991            pane.update(cx, |pane, cx| {
 1992                window.focus(&pane.focus_handle(cx));
 1993                loop {
 1994                    // Retrieve the weak item handle from the history.
 1995                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 1996
 1997                    // If the item is still present in this pane, then activate it.
 1998                    if let Some(index) = entry
 1999                        .item
 2000                        .upgrade()
 2001                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2002                    {
 2003                        let prev_active_item_index = pane.active_item_index();
 2004                        pane.nav_history_mut().set_mode(mode);
 2005                        pane.activate_item(index, true, true, window, cx);
 2006                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2007
 2008                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2009                        if let Some(data) = entry.data {
 2010                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2011                        }
 2012
 2013                        if navigated {
 2014                            break None;
 2015                        }
 2016                    } else {
 2017                        // If the item is no longer present in this pane, then retrieve its
 2018                        // path info in order to reopen it.
 2019                        break pane
 2020                            .nav_history()
 2021                            .path_for_item(entry.item.id())
 2022                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2023                    }
 2024                }
 2025            })
 2026        } else {
 2027            None
 2028        };
 2029
 2030        if let Some((project_path, abs_path, entry)) = to_load {
 2031            // If the item was no longer present, then load it again from its previous path, first try the local path
 2032            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2033
 2034            cx.spawn_in(window, async move  |workspace, cx| {
 2035                let open_by_project_path = open_by_project_path.await;
 2036                let mut navigated = false;
 2037                match open_by_project_path
 2038                    .with_context(|| format!("Navigating to {project_path:?}"))
 2039                {
 2040                    Ok((project_entry_id, build_item)) => {
 2041                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2042                            pane.nav_history_mut().set_mode(mode);
 2043                            pane.active_item().map(|p| p.item_id())
 2044                        })?;
 2045
 2046                        pane.update_in(cx, |pane, window, cx| {
 2047                            let item = pane.open_item(
 2048                                project_entry_id,
 2049                                project_path,
 2050                                true,
 2051                                entry.is_preview,
 2052                                true,
 2053                                None,
 2054                                window, cx,
 2055                                build_item,
 2056                            );
 2057                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2058                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2059                            if let Some(data) = entry.data {
 2060                                navigated |= item.navigate(data, window, cx);
 2061                            }
 2062                        })?;
 2063                    }
 2064                    Err(open_by_project_path_e) => {
 2065                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2066                        // and its worktree is now dropped
 2067                        if let Some(abs_path) = abs_path {
 2068                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2069                                pane.nav_history_mut().set_mode(mode);
 2070                                pane.active_item().map(|p| p.item_id())
 2071                            })?;
 2072                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2073                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2074                            })?;
 2075                            match open_by_abs_path
 2076                                .await
 2077                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2078                            {
 2079                                Ok(item) => {
 2080                                    pane.update_in(cx, |pane, window, cx| {
 2081                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2082                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2083                                        if let Some(data) = entry.data {
 2084                                            navigated |= item.navigate(data, window, cx);
 2085                                        }
 2086                                    })?;
 2087                                }
 2088                                Err(open_by_abs_path_e) => {
 2089                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2090                                }
 2091                            }
 2092                        }
 2093                    }
 2094                }
 2095
 2096                if !navigated {
 2097                    workspace
 2098                        .update_in(cx, |workspace, window, cx| {
 2099                            Self::navigate_history(workspace, pane, mode, window, cx)
 2100                        })?
 2101                        .await?;
 2102                }
 2103
 2104                Ok(())
 2105            })
 2106        } else {
 2107            Task::ready(Ok(()))
 2108        }
 2109    }
 2110
 2111    pub fn go_back(
 2112        &mut self,
 2113        pane: WeakEntity<Pane>,
 2114        window: &mut Window,
 2115        cx: &mut Context<Workspace>,
 2116    ) -> Task<Result<()>> {
 2117        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2118    }
 2119
 2120    pub fn go_forward(
 2121        &mut self,
 2122        pane: WeakEntity<Pane>,
 2123        window: &mut Window,
 2124        cx: &mut Context<Workspace>,
 2125    ) -> Task<Result<()>> {
 2126        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2127    }
 2128
 2129    pub fn reopen_closed_item(
 2130        &mut self,
 2131        window: &mut Window,
 2132        cx: &mut Context<Workspace>,
 2133    ) -> Task<Result<()>> {
 2134        self.navigate_history(
 2135            self.active_pane().downgrade(),
 2136            NavigationMode::ReopeningClosedItem,
 2137            window,
 2138            cx,
 2139        )
 2140    }
 2141
 2142    pub fn client(&self) -> &Arc<Client> {
 2143        &self.app_state.client
 2144    }
 2145
 2146    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2147        self.titlebar_item = Some(item);
 2148        cx.notify();
 2149    }
 2150
 2151    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2152        self.on_prompt_for_new_path = Some(prompt)
 2153    }
 2154
 2155    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2156        self.on_prompt_for_open_path = Some(prompt)
 2157    }
 2158
 2159    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2160        self.terminal_provider = Some(Box::new(provider));
 2161    }
 2162
 2163    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2164        self.debugger_provider = Some(Arc::new(provider));
 2165    }
 2166
 2167    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2168        self.debugger_provider.clone()
 2169    }
 2170
 2171    pub fn prompt_for_open_path(
 2172        &mut self,
 2173        path_prompt_options: PathPromptOptions,
 2174        lister: DirectoryLister,
 2175        window: &mut Window,
 2176        cx: &mut Context<Self>,
 2177    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2178        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2179            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2180            let rx = prompt(self, lister, window, cx);
 2181            self.on_prompt_for_open_path = Some(prompt);
 2182            rx
 2183        } else {
 2184            let (tx, rx) = oneshot::channel();
 2185            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2186
 2187            cx.spawn_in(window, async move |workspace, cx| {
 2188                let Ok(result) = abs_path.await else {
 2189                    return Ok(());
 2190                };
 2191
 2192                match result {
 2193                    Ok(result) => {
 2194                        tx.send(result).ok();
 2195                    }
 2196                    Err(err) => {
 2197                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2198                            workspace.show_portal_error(err.to_string(), cx);
 2199                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2200                            let rx = prompt(workspace, lister, window, cx);
 2201                            workspace.on_prompt_for_open_path = Some(prompt);
 2202                            rx
 2203                        })?;
 2204                        if let Ok(path) = rx.await {
 2205                            tx.send(path).ok();
 2206                        }
 2207                    }
 2208                };
 2209                anyhow::Ok(())
 2210            })
 2211            .detach();
 2212
 2213            rx
 2214        }
 2215    }
 2216
 2217    pub fn prompt_for_new_path(
 2218        &mut self,
 2219        lister: DirectoryLister,
 2220        suggested_name: Option<String>,
 2221        window: &mut Window,
 2222        cx: &mut Context<Self>,
 2223    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2224        if self.project.read(cx).is_via_collab()
 2225            || self.project.read(cx).is_via_remote_server()
 2226            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2227        {
 2228            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2229            let rx = prompt(self, lister, window, cx);
 2230            self.on_prompt_for_new_path = Some(prompt);
 2231            return rx;
 2232        }
 2233
 2234        let (tx, rx) = oneshot::channel();
 2235        cx.spawn_in(window, async move |workspace, cx| {
 2236            let abs_path = workspace.update(cx, |workspace, cx| {
 2237                let relative_to = workspace
 2238                    .most_recent_active_path(cx)
 2239                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2240                    .or_else(|| {
 2241                        let project = workspace.project.read(cx);
 2242                        project.visible_worktrees(cx).find_map(|worktree| {
 2243                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2244                        })
 2245                    })
 2246                    .or_else(std::env::home_dir)
 2247                    .unwrap_or_else(|| PathBuf::from(""));
 2248                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2249            })?;
 2250            let abs_path = match abs_path.await? {
 2251                Ok(path) => path,
 2252                Err(err) => {
 2253                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2254                        workspace.show_portal_error(err.to_string(), cx);
 2255
 2256                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2257                        let rx = prompt(workspace, lister, window, cx);
 2258                        workspace.on_prompt_for_new_path = Some(prompt);
 2259                        rx
 2260                    })?;
 2261                    if let Ok(path) = rx.await {
 2262                        tx.send(path).ok();
 2263                    }
 2264                    return anyhow::Ok(());
 2265                }
 2266            };
 2267
 2268            tx.send(abs_path.map(|path| vec![path])).ok();
 2269            anyhow::Ok(())
 2270        })
 2271        .detach();
 2272
 2273        rx
 2274    }
 2275
 2276    pub fn titlebar_item(&self) -> Option<AnyView> {
 2277        self.titlebar_item.clone()
 2278    }
 2279
 2280    /// Call the given callback with a workspace whose project is local.
 2281    ///
 2282    /// If the given workspace has a local project, then it will be passed
 2283    /// to the callback. Otherwise, a new empty window will be created.
 2284    pub fn with_local_workspace<T, F>(
 2285        &mut self,
 2286        window: &mut Window,
 2287        cx: &mut Context<Self>,
 2288        callback: F,
 2289    ) -> Task<Result<T>>
 2290    where
 2291        T: 'static,
 2292        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2293    {
 2294        if self.project.read(cx).is_local() {
 2295            Task::ready(Ok(callback(self, window, cx)))
 2296        } else {
 2297            let env = self.project.read(cx).cli_environment(cx);
 2298            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2299            cx.spawn_in(window, async move |_vh, cx| {
 2300                let (workspace, _) = task.await?;
 2301                workspace.update(cx, callback)
 2302            })
 2303        }
 2304    }
 2305
 2306    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2307        self.project.read(cx).worktrees(cx)
 2308    }
 2309
 2310    pub fn visible_worktrees<'a>(
 2311        &self,
 2312        cx: &'a App,
 2313    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2314        self.project.read(cx).visible_worktrees(cx)
 2315    }
 2316
 2317    #[cfg(any(test, feature = "test-support"))]
 2318    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2319        let futures = self
 2320            .worktrees(cx)
 2321            .filter_map(|worktree| worktree.read(cx).as_local())
 2322            .map(|worktree| worktree.scan_complete())
 2323            .collect::<Vec<_>>();
 2324        async move {
 2325            for future in futures {
 2326                future.await;
 2327            }
 2328        }
 2329    }
 2330
 2331    pub fn close_global(cx: &mut App) {
 2332        cx.defer(|cx| {
 2333            cx.windows().iter().find(|window| {
 2334                window
 2335                    .update(cx, |_, window, _| {
 2336                        if window.is_window_active() {
 2337                            //This can only get called when the window's project connection has been lost
 2338                            //so we don't need to prompt the user for anything and instead just close the window
 2339                            window.remove_window();
 2340                            true
 2341                        } else {
 2342                            false
 2343                        }
 2344                    })
 2345                    .unwrap_or(false)
 2346            });
 2347        });
 2348    }
 2349
 2350    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2351        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2352        cx.spawn_in(window, async move |_, cx| {
 2353            if prepare.await? {
 2354                cx.update(|window, _cx| window.remove_window())?;
 2355            }
 2356            anyhow::Ok(())
 2357        })
 2358        .detach_and_log_err(cx)
 2359    }
 2360
 2361    pub fn move_focused_panel_to_next_position(
 2362        &mut self,
 2363        _: &MoveFocusedPanelToNextPosition,
 2364        window: &mut Window,
 2365        cx: &mut Context<Self>,
 2366    ) {
 2367        let docks = self.all_docks();
 2368        let active_dock = docks
 2369            .into_iter()
 2370            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2371
 2372        if let Some(dock) = active_dock {
 2373            dock.update(cx, |dock, cx| {
 2374                let active_panel = dock
 2375                    .active_panel()
 2376                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2377
 2378                if let Some(panel) = active_panel {
 2379                    panel.move_to_next_position(window, cx);
 2380                }
 2381            })
 2382        }
 2383    }
 2384
 2385    pub fn prepare_to_close(
 2386        &mut self,
 2387        close_intent: CloseIntent,
 2388        window: &mut Window,
 2389        cx: &mut Context<Self>,
 2390    ) -> Task<Result<bool>> {
 2391        let active_call = self.active_call().cloned();
 2392
 2393        cx.spawn_in(window, async move |this, cx| {
 2394            this.update(cx, |this, _| {
 2395                if close_intent == CloseIntent::CloseWindow {
 2396                    this.removing = true;
 2397                }
 2398            })?;
 2399
 2400            let workspace_count = cx.update(|_window, cx| {
 2401                cx.windows()
 2402                    .iter()
 2403                    .filter(|window| window.downcast::<Workspace>().is_some())
 2404                    .count()
 2405            })?;
 2406
 2407            #[cfg(target_os = "macos")]
 2408            let save_last_workspace = false;
 2409
 2410            // On Linux and Windows, closing the last window should restore the last workspace.
 2411            #[cfg(not(target_os = "macos"))]
 2412            let save_last_workspace = {
 2413                let remaining_workspaces = cx.update(|_window, cx| {
 2414                    cx.windows()
 2415                        .iter()
 2416                        .filter_map(|window| window.downcast::<Workspace>())
 2417                        .filter_map(|workspace| {
 2418                            workspace
 2419                                .update(cx, |workspace, _, _| workspace.removing)
 2420                                .ok()
 2421                        })
 2422                        .filter(|removing| !removing)
 2423                        .count()
 2424                })?;
 2425
 2426                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2427            };
 2428
 2429            if let Some(active_call) = active_call
 2430                && workspace_count == 1
 2431                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2432            {
 2433                if close_intent == CloseIntent::CloseWindow {
 2434                    let answer = cx.update(|window, cx| {
 2435                        window.prompt(
 2436                            PromptLevel::Warning,
 2437                            "Do you want to leave the current call?",
 2438                            None,
 2439                            &["Close window and hang up", "Cancel"],
 2440                            cx,
 2441                        )
 2442                    })?;
 2443
 2444                    if answer.await.log_err() == Some(1) {
 2445                        return anyhow::Ok(false);
 2446                    } else {
 2447                        active_call
 2448                            .update(cx, |call, cx| call.hang_up(cx))?
 2449                            .await
 2450                            .log_err();
 2451                    }
 2452                }
 2453                if close_intent == CloseIntent::ReplaceWindow {
 2454                    _ = active_call.update(cx, |this, cx| {
 2455                        let workspace = cx
 2456                            .windows()
 2457                            .iter()
 2458                            .filter_map(|window| window.downcast::<Workspace>())
 2459                            .next()
 2460                            .unwrap();
 2461                        let project = workspace.read(cx)?.project.clone();
 2462                        if project.read(cx).is_shared() {
 2463                            this.unshare_project(project, cx)?;
 2464                        }
 2465                        Ok::<_, anyhow::Error>(())
 2466                    })?;
 2467                }
 2468            }
 2469
 2470            let save_result = this
 2471                .update_in(cx, |this, window, cx| {
 2472                    this.save_all_internal(SaveIntent::Close, window, cx)
 2473                })?
 2474                .await;
 2475
 2476            // If we're not quitting, but closing, we remove the workspace from
 2477            // the current session.
 2478            if close_intent != CloseIntent::Quit
 2479                && !save_last_workspace
 2480                && save_result.as_ref().is_ok_and(|&res| res)
 2481            {
 2482                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2483                    .await;
 2484            }
 2485
 2486            save_result
 2487        })
 2488    }
 2489
 2490    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2491        self.save_all_internal(
 2492            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2493            window,
 2494            cx,
 2495        )
 2496        .detach_and_log_err(cx);
 2497    }
 2498
 2499    fn send_keystrokes(
 2500        &mut self,
 2501        action: &SendKeystrokes,
 2502        window: &mut Window,
 2503        cx: &mut Context<Self>,
 2504    ) {
 2505        let keystrokes: Vec<Keystroke> = action
 2506            .0
 2507            .split(' ')
 2508            .flat_map(|k| Keystroke::parse(k).log_err())
 2509            .map(|k| {
 2510                cx.keyboard_mapper()
 2511                    .map_key_equivalent(k, true)
 2512                    .inner()
 2513                    .clone()
 2514            })
 2515            .collect();
 2516        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2517    }
 2518
 2519    pub fn send_keystrokes_impl(
 2520        &mut self,
 2521        keystrokes: Vec<Keystroke>,
 2522        window: &mut Window,
 2523        cx: &mut Context<Self>,
 2524    ) -> Shared<Task<()>> {
 2525        let mut state = self.dispatching_keystrokes.borrow_mut();
 2526        if !state.dispatched.insert(keystrokes.clone()) {
 2527            cx.propagate();
 2528            return state.task.clone().unwrap();
 2529        }
 2530
 2531        state.queue.extend(keystrokes);
 2532
 2533        let keystrokes = self.dispatching_keystrokes.clone();
 2534        if state.task.is_none() {
 2535            state.task = Some(
 2536                window
 2537                    .spawn(cx, async move |cx| {
 2538                        // limit to 100 keystrokes to avoid infinite recursion.
 2539                        for _ in 0..100 {
 2540                            let mut state = keystrokes.borrow_mut();
 2541                            let Some(keystroke) = state.queue.pop_front() else {
 2542                                state.dispatched.clear();
 2543                                state.task.take();
 2544                                return;
 2545                            };
 2546                            drop(state);
 2547                            cx.update(|window, cx| {
 2548                                let focused = window.focused(cx);
 2549                                window.dispatch_keystroke(keystroke.clone(), cx);
 2550                                if window.focused(cx) != focused {
 2551                                    // dispatch_keystroke may cause the focus to change.
 2552                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2553                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2554                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2555                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2556                                    // )
 2557                                    window.draw(cx).clear();
 2558                                }
 2559                            })
 2560                            .ok();
 2561                        }
 2562
 2563                        *keystrokes.borrow_mut() = Default::default();
 2564                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2565                    })
 2566                    .shared(),
 2567            );
 2568        }
 2569        state.task.clone().unwrap()
 2570    }
 2571
 2572    fn save_all_internal(
 2573        &mut self,
 2574        mut save_intent: SaveIntent,
 2575        window: &mut Window,
 2576        cx: &mut Context<Self>,
 2577    ) -> Task<Result<bool>> {
 2578        if self.project.read(cx).is_disconnected(cx) {
 2579            return Task::ready(Ok(true));
 2580        }
 2581        let dirty_items = self
 2582            .panes
 2583            .iter()
 2584            .flat_map(|pane| {
 2585                pane.read(cx).items().filter_map(|item| {
 2586                    if item.is_dirty(cx) {
 2587                        item.tab_content_text(0, cx);
 2588                        Some((pane.downgrade(), item.boxed_clone()))
 2589                    } else {
 2590                        None
 2591                    }
 2592                })
 2593            })
 2594            .collect::<Vec<_>>();
 2595
 2596        let project = self.project.clone();
 2597        cx.spawn_in(window, async move |workspace, cx| {
 2598            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2599                let (serialize_tasks, remaining_dirty_items) =
 2600                    workspace.update_in(cx, |workspace, window, cx| {
 2601                        let mut remaining_dirty_items = Vec::new();
 2602                        let mut serialize_tasks = Vec::new();
 2603                        for (pane, item) in dirty_items {
 2604                            if let Some(task) = item
 2605                                .to_serializable_item_handle(cx)
 2606                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2607                            {
 2608                                serialize_tasks.push(task);
 2609                            } else {
 2610                                remaining_dirty_items.push((pane, item));
 2611                            }
 2612                        }
 2613                        (serialize_tasks, remaining_dirty_items)
 2614                    })?;
 2615
 2616                futures::future::try_join_all(serialize_tasks).await?;
 2617
 2618                if remaining_dirty_items.len() > 1 {
 2619                    let answer = workspace.update_in(cx, |_, window, cx| {
 2620                        let detail = Pane::file_names_for_prompt(
 2621                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2622                            cx,
 2623                        );
 2624                        window.prompt(
 2625                            PromptLevel::Warning,
 2626                            "Do you want to save all changes in the following files?",
 2627                            Some(&detail),
 2628                            &["Save all", "Discard all", "Cancel"],
 2629                            cx,
 2630                        )
 2631                    })?;
 2632                    match answer.await.log_err() {
 2633                        Some(0) => save_intent = SaveIntent::SaveAll,
 2634                        Some(1) => save_intent = SaveIntent::Skip,
 2635                        Some(2) => return Ok(false),
 2636                        _ => {}
 2637                    }
 2638                }
 2639
 2640                remaining_dirty_items
 2641            } else {
 2642                dirty_items
 2643            };
 2644
 2645            for (pane, item) in dirty_items {
 2646                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2647                    (
 2648                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2649                        item.project_entry_ids(cx),
 2650                    )
 2651                })?;
 2652                if (singleton || !project_entry_ids.is_empty())
 2653                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2654                {
 2655                    return Ok(false);
 2656                }
 2657            }
 2658            Ok(true)
 2659        })
 2660    }
 2661
 2662    pub fn open_workspace_for_paths(
 2663        &mut self,
 2664        replace_current_window: bool,
 2665        paths: Vec<PathBuf>,
 2666        window: &mut Window,
 2667        cx: &mut Context<Self>,
 2668    ) -> Task<Result<()>> {
 2669        let window_handle = window.window_handle().downcast::<Self>();
 2670        let is_remote = self.project.read(cx).is_via_collab();
 2671        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2672        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2673
 2674        let window_to_replace = if replace_current_window {
 2675            window_handle
 2676        } else if is_remote || has_worktree || has_dirty_items {
 2677            None
 2678        } else {
 2679            window_handle
 2680        };
 2681        let app_state = self.app_state.clone();
 2682
 2683        cx.spawn(async move |_, cx| {
 2684            cx.update(|cx| {
 2685                open_paths(
 2686                    &paths,
 2687                    app_state,
 2688                    OpenOptions {
 2689                        replace_window: window_to_replace,
 2690                        ..Default::default()
 2691                    },
 2692                    cx,
 2693                )
 2694            })?
 2695            .await?;
 2696            Ok(())
 2697        })
 2698    }
 2699
 2700    #[allow(clippy::type_complexity)]
 2701    pub fn open_paths(
 2702        &mut self,
 2703        mut abs_paths: Vec<PathBuf>,
 2704        options: OpenOptions,
 2705        pane: Option<WeakEntity<Pane>>,
 2706        window: &mut Window,
 2707        cx: &mut Context<Self>,
 2708    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2709        let fs = self.app_state.fs.clone();
 2710
 2711        // Sort the paths to ensure we add worktrees for parents before their children.
 2712        abs_paths.sort_unstable();
 2713        cx.spawn_in(window, async move |this, cx| {
 2714            let mut tasks = Vec::with_capacity(abs_paths.len());
 2715
 2716            for abs_path in &abs_paths {
 2717                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2718                    OpenVisible::All => Some(true),
 2719                    OpenVisible::None => Some(false),
 2720                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2721                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2722                        Some(None) => Some(true),
 2723                        None => None,
 2724                    },
 2725                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2726                        Some(Some(metadata)) => Some(metadata.is_dir),
 2727                        Some(None) => Some(false),
 2728                        None => None,
 2729                    },
 2730                };
 2731                let project_path = match visible {
 2732                    Some(visible) => match this
 2733                        .update(cx, |this, cx| {
 2734                            Workspace::project_path_for_path(
 2735                                this.project.clone(),
 2736                                abs_path,
 2737                                visible,
 2738                                cx,
 2739                            )
 2740                        })
 2741                        .log_err()
 2742                    {
 2743                        Some(project_path) => project_path.await.log_err(),
 2744                        None => None,
 2745                    },
 2746                    None => None,
 2747                };
 2748
 2749                let this = this.clone();
 2750                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2751                let fs = fs.clone();
 2752                let pane = pane.clone();
 2753                let task = cx.spawn(async move |cx| {
 2754                    let (worktree, project_path) = project_path?;
 2755                    if fs.is_dir(&abs_path).await {
 2756                        this.update(cx, |workspace, cx| {
 2757                            let worktree = worktree.read(cx);
 2758                            let worktree_abs_path = worktree.abs_path();
 2759                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2760                                worktree.root_entry()
 2761                            } else {
 2762                                abs_path
 2763                                    .strip_prefix(worktree_abs_path.as_ref())
 2764                                    .ok()
 2765                                    .and_then(|relative_path| {
 2766                                        let relative_path =
 2767                                            RelPath::new(relative_path, PathStyle::local())
 2768                                                .log_err()?;
 2769                                        worktree.entry_for_path(&relative_path)
 2770                                    })
 2771                            }
 2772                            .map(|entry| entry.id);
 2773                            if let Some(entry_id) = entry_id {
 2774                                workspace.project.update(cx, |_, cx| {
 2775                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2776                                })
 2777                            }
 2778                        })
 2779                        .ok()?;
 2780                        None
 2781                    } else {
 2782                        Some(
 2783                            this.update_in(cx, |this, window, cx| {
 2784                                this.open_path(
 2785                                    project_path,
 2786                                    pane,
 2787                                    options.focus.unwrap_or(true),
 2788                                    window,
 2789                                    cx,
 2790                                )
 2791                            })
 2792                            .ok()?
 2793                            .await,
 2794                        )
 2795                    }
 2796                });
 2797                tasks.push(task);
 2798            }
 2799
 2800            futures::future::join_all(tasks).await
 2801        })
 2802    }
 2803
 2804    pub fn open_resolved_path(
 2805        &mut self,
 2806        path: ResolvedPath,
 2807        window: &mut Window,
 2808        cx: &mut Context<Self>,
 2809    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2810        match path {
 2811            ResolvedPath::ProjectPath { project_path, .. } => {
 2812                self.open_path(project_path, None, true, window, cx)
 2813            }
 2814            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2815                PathBuf::from(path),
 2816                OpenOptions {
 2817                    visible: Some(OpenVisible::None),
 2818                    ..Default::default()
 2819                },
 2820                window,
 2821                cx,
 2822            ),
 2823        }
 2824    }
 2825
 2826    pub fn absolute_path_of_worktree(
 2827        &self,
 2828        worktree_id: WorktreeId,
 2829        cx: &mut Context<Self>,
 2830    ) -> Option<PathBuf> {
 2831        self.project
 2832            .read(cx)
 2833            .worktree_for_id(worktree_id, cx)
 2834            // TODO: use `abs_path` or `root_dir`
 2835            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2836    }
 2837
 2838    fn add_folder_to_project(
 2839        &mut self,
 2840        _: &AddFolderToProject,
 2841        window: &mut Window,
 2842        cx: &mut Context<Self>,
 2843    ) {
 2844        let project = self.project.read(cx);
 2845        if project.is_via_collab() {
 2846            self.show_error(
 2847                &anyhow!("You cannot add folders to someone else's project"),
 2848                cx,
 2849            );
 2850            return;
 2851        }
 2852        let paths = self.prompt_for_open_path(
 2853            PathPromptOptions {
 2854                files: false,
 2855                directories: true,
 2856                multiple: true,
 2857                prompt: None,
 2858            },
 2859            DirectoryLister::Project(self.project.clone()),
 2860            window,
 2861            cx,
 2862        );
 2863        cx.spawn_in(window, async move |this, cx| {
 2864            if let Some(paths) = paths.await.log_err().flatten() {
 2865                let results = this
 2866                    .update_in(cx, |this, window, cx| {
 2867                        this.open_paths(
 2868                            paths,
 2869                            OpenOptions {
 2870                                visible: Some(OpenVisible::All),
 2871                                ..Default::default()
 2872                            },
 2873                            None,
 2874                            window,
 2875                            cx,
 2876                        )
 2877                    })?
 2878                    .await;
 2879                for result in results.into_iter().flatten() {
 2880                    result.log_err();
 2881                }
 2882            }
 2883            anyhow::Ok(())
 2884        })
 2885        .detach_and_log_err(cx);
 2886    }
 2887
 2888    pub fn project_path_for_path(
 2889        project: Entity<Project>,
 2890        abs_path: &Path,
 2891        visible: bool,
 2892        cx: &mut App,
 2893    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2894        let entry = project.update(cx, |project, cx| {
 2895            project.find_or_create_worktree(abs_path, visible, cx)
 2896        });
 2897        cx.spawn(async move |cx| {
 2898            let (worktree, path) = entry.await?;
 2899            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2900            Ok((
 2901                worktree,
 2902                ProjectPath {
 2903                    worktree_id,
 2904                    path: path,
 2905                },
 2906            ))
 2907        })
 2908    }
 2909
 2910    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2911        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2912    }
 2913
 2914    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2915        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2916    }
 2917
 2918    pub fn items_of_type<'a, T: Item>(
 2919        &'a self,
 2920        cx: &'a App,
 2921    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2922        self.panes
 2923            .iter()
 2924            .flat_map(|pane| pane.read(cx).items_of_type())
 2925    }
 2926
 2927    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2928        self.active_pane().read(cx).active_item()
 2929    }
 2930
 2931    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2932        let item = self.active_item(cx)?;
 2933        item.to_any_view().downcast::<I>().ok()
 2934    }
 2935
 2936    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2937        self.active_item(cx).and_then(|item| item.project_path(cx))
 2938    }
 2939
 2940    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2941        self.recent_navigation_history_iter(cx)
 2942            .filter_map(|(path, abs_path)| {
 2943                let worktree = self
 2944                    .project
 2945                    .read(cx)
 2946                    .worktree_for_id(path.worktree_id, cx)?;
 2947                if worktree.read(cx).is_visible() {
 2948                    abs_path
 2949                } else {
 2950                    None
 2951                }
 2952            })
 2953            .next()
 2954    }
 2955
 2956    pub fn save_active_item(
 2957        &mut self,
 2958        save_intent: SaveIntent,
 2959        window: &mut Window,
 2960        cx: &mut App,
 2961    ) -> Task<Result<()>> {
 2962        let project = self.project.clone();
 2963        let pane = self.active_pane();
 2964        let item = pane.read(cx).active_item();
 2965        let pane = pane.downgrade();
 2966
 2967        window.spawn(cx, async move |cx| {
 2968            if let Some(item) = item {
 2969                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 2970                    .await
 2971                    .map(|_| ())
 2972            } else {
 2973                Ok(())
 2974            }
 2975        })
 2976    }
 2977
 2978    pub fn close_inactive_items_and_panes(
 2979        &mut self,
 2980        action: &CloseInactiveTabsAndPanes,
 2981        window: &mut Window,
 2982        cx: &mut Context<Self>,
 2983    ) {
 2984        if let Some(task) = self.close_all_internal(
 2985            true,
 2986            action.save_intent.unwrap_or(SaveIntent::Close),
 2987            window,
 2988            cx,
 2989        ) {
 2990            task.detach_and_log_err(cx)
 2991        }
 2992    }
 2993
 2994    pub fn close_all_items_and_panes(
 2995        &mut self,
 2996        action: &CloseAllItemsAndPanes,
 2997        window: &mut Window,
 2998        cx: &mut Context<Self>,
 2999    ) {
 3000        if let Some(task) = self.close_all_internal(
 3001            false,
 3002            action.save_intent.unwrap_or(SaveIntent::Close),
 3003            window,
 3004            cx,
 3005        ) {
 3006            task.detach_and_log_err(cx)
 3007        }
 3008    }
 3009
 3010    fn close_all_internal(
 3011        &mut self,
 3012        retain_active_pane: bool,
 3013        save_intent: SaveIntent,
 3014        window: &mut Window,
 3015        cx: &mut Context<Self>,
 3016    ) -> Option<Task<Result<()>>> {
 3017        let current_pane = self.active_pane();
 3018
 3019        let mut tasks = Vec::new();
 3020
 3021        if retain_active_pane {
 3022            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3023                pane.close_other_items(
 3024                    &CloseOtherItems {
 3025                        save_intent: None,
 3026                        close_pinned: false,
 3027                    },
 3028                    None,
 3029                    window,
 3030                    cx,
 3031                )
 3032            });
 3033
 3034            tasks.push(current_pane_close);
 3035        }
 3036
 3037        for pane in self.panes() {
 3038            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3039                continue;
 3040            }
 3041
 3042            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3043                pane.close_all_items(
 3044                    &CloseAllItems {
 3045                        save_intent: Some(save_intent),
 3046                        close_pinned: false,
 3047                    },
 3048                    window,
 3049                    cx,
 3050                )
 3051            });
 3052
 3053            tasks.push(close_pane_items)
 3054        }
 3055
 3056        if tasks.is_empty() {
 3057            None
 3058        } else {
 3059            Some(cx.spawn_in(window, async move |_, _| {
 3060                for task in tasks {
 3061                    task.await?
 3062                }
 3063                Ok(())
 3064            }))
 3065        }
 3066    }
 3067
 3068    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3069        self.dock_at_position(position).read(cx).is_open()
 3070    }
 3071
 3072    pub fn toggle_dock(
 3073        &mut self,
 3074        dock_side: DockPosition,
 3075        window: &mut Window,
 3076        cx: &mut Context<Self>,
 3077    ) {
 3078        let mut focus_center = false;
 3079        let mut reveal_dock = false;
 3080
 3081        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3082        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3083        if was_visible {
 3084            self.save_open_dock_positions(cx);
 3085        }
 3086
 3087        let dock = self.dock_at_position(dock_side);
 3088        dock.update(cx, |dock, cx| {
 3089            dock.set_open(!was_visible, window, cx);
 3090
 3091            if dock.active_panel().is_none() {
 3092                let Some(panel_ix) = dock
 3093                    .first_enabled_panel_idx(cx)
 3094                    .log_with_level(log::Level::Info)
 3095                else {
 3096                    return;
 3097                };
 3098                dock.activate_panel(panel_ix, window, cx);
 3099            }
 3100
 3101            if let Some(active_panel) = dock.active_panel() {
 3102                if was_visible {
 3103                    if active_panel
 3104                        .panel_focus_handle(cx)
 3105                        .contains_focused(window, cx)
 3106                    {
 3107                        focus_center = true;
 3108                    }
 3109                } else {
 3110                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3111                    window.focus(focus_handle);
 3112                    reveal_dock = true;
 3113                }
 3114            }
 3115        });
 3116
 3117        if reveal_dock {
 3118            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3119        }
 3120
 3121        if focus_center {
 3122            self.active_pane
 3123                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3124        }
 3125
 3126        cx.notify();
 3127        self.serialize_workspace(window, cx);
 3128    }
 3129
 3130    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3131        self.all_docks().into_iter().find(|&dock| {
 3132            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3133        })
 3134    }
 3135
 3136    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3137        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3138            self.save_open_dock_positions(cx);
 3139            dock.update(cx, |dock, cx| {
 3140                dock.set_open(false, window, cx);
 3141            });
 3142            return true;
 3143        }
 3144        false
 3145    }
 3146
 3147    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3148        self.save_open_dock_positions(cx);
 3149        for dock in self.all_docks() {
 3150            dock.update(cx, |dock, cx| {
 3151                dock.set_open(false, window, cx);
 3152            });
 3153        }
 3154
 3155        cx.focus_self(window);
 3156        cx.notify();
 3157        self.serialize_workspace(window, cx);
 3158    }
 3159
 3160    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3161        self.all_docks()
 3162            .into_iter()
 3163            .filter_map(|dock| {
 3164                let dock_ref = dock.read(cx);
 3165                if dock_ref.is_open() {
 3166                    Some(dock_ref.position())
 3167                } else {
 3168                    None
 3169                }
 3170            })
 3171            .collect()
 3172    }
 3173
 3174    /// Saves the positions of currently open docks.
 3175    ///
 3176    /// Updates `last_open_dock_positions` with positions of all currently open
 3177    /// docks, to later be restored by the 'Toggle All Docks' action.
 3178    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3179        let open_dock_positions = self.get_open_dock_positions(cx);
 3180        if !open_dock_positions.is_empty() {
 3181            self.last_open_dock_positions = open_dock_positions;
 3182        }
 3183    }
 3184
 3185    /// Toggles all docks between open and closed states.
 3186    ///
 3187    /// If any docks are open, closes all and remembers their positions. If all
 3188    /// docks are closed, restores the last remembered dock configuration.
 3189    fn toggle_all_docks(
 3190        &mut self,
 3191        _: &ToggleAllDocks,
 3192        window: &mut Window,
 3193        cx: &mut Context<Self>,
 3194    ) {
 3195        let open_dock_positions = self.get_open_dock_positions(cx);
 3196
 3197        if !open_dock_positions.is_empty() {
 3198            self.close_all_docks(window, cx);
 3199        } else if !self.last_open_dock_positions.is_empty() {
 3200            self.restore_last_open_docks(window, cx);
 3201        }
 3202    }
 3203
 3204    /// Reopens docks from the most recently remembered configuration.
 3205    ///
 3206    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3207    /// and clears the stored positions.
 3208    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3209        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3210
 3211        for position in positions_to_open {
 3212            let dock = self.dock_at_position(position);
 3213            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3214        }
 3215
 3216        cx.focus_self(window);
 3217        cx.notify();
 3218        self.serialize_workspace(window, cx);
 3219    }
 3220
 3221    /// Transfer focus to the panel of the given type.
 3222    pub fn focus_panel<T: Panel>(
 3223        &mut self,
 3224        window: &mut Window,
 3225        cx: &mut Context<Self>,
 3226    ) -> Option<Entity<T>> {
 3227        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3228        panel.to_any().downcast().ok()
 3229    }
 3230
 3231    /// Focus the panel of the given type if it isn't already focused. If it is
 3232    /// already focused, then transfer focus back to the workspace center.
 3233    pub fn toggle_panel_focus<T: Panel>(
 3234        &mut self,
 3235        window: &mut Window,
 3236        cx: &mut Context<Self>,
 3237    ) -> bool {
 3238        let mut did_focus_panel = false;
 3239        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3240            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3241            did_focus_panel
 3242        });
 3243        did_focus_panel
 3244    }
 3245
 3246    pub fn activate_panel_for_proto_id(
 3247        &mut self,
 3248        panel_id: PanelId,
 3249        window: &mut Window,
 3250        cx: &mut Context<Self>,
 3251    ) -> Option<Arc<dyn PanelHandle>> {
 3252        let mut panel = None;
 3253        for dock in self.all_docks() {
 3254            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3255                panel = dock.update(cx, |dock, cx| {
 3256                    dock.activate_panel(panel_index, window, cx);
 3257                    dock.set_open(true, window, cx);
 3258                    dock.active_panel().cloned()
 3259                });
 3260                break;
 3261            }
 3262        }
 3263
 3264        if panel.is_some() {
 3265            cx.notify();
 3266            self.serialize_workspace(window, cx);
 3267        }
 3268
 3269        panel
 3270    }
 3271
 3272    /// Focus or unfocus the given panel type, depending on the given callback.
 3273    fn focus_or_unfocus_panel<T: Panel>(
 3274        &mut self,
 3275        window: &mut Window,
 3276        cx: &mut Context<Self>,
 3277        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3278    ) -> Option<Arc<dyn PanelHandle>> {
 3279        let mut result_panel = None;
 3280        let mut serialize = false;
 3281        for dock in self.all_docks() {
 3282            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3283                let mut focus_center = false;
 3284                let panel = dock.update(cx, |dock, cx| {
 3285                    dock.activate_panel(panel_index, window, cx);
 3286
 3287                    let panel = dock.active_panel().cloned();
 3288                    if let Some(panel) = panel.as_ref() {
 3289                        if should_focus(&**panel, window, cx) {
 3290                            dock.set_open(true, window, cx);
 3291                            panel.panel_focus_handle(cx).focus(window);
 3292                        } else {
 3293                            focus_center = true;
 3294                        }
 3295                    }
 3296                    panel
 3297                });
 3298
 3299                if focus_center {
 3300                    self.active_pane
 3301                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3302                }
 3303
 3304                result_panel = panel;
 3305                serialize = true;
 3306                break;
 3307            }
 3308        }
 3309
 3310        if serialize {
 3311            self.serialize_workspace(window, cx);
 3312        }
 3313
 3314        cx.notify();
 3315        result_panel
 3316    }
 3317
 3318    /// Open the panel of the given type
 3319    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3320        for dock in self.all_docks() {
 3321            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3322                dock.update(cx, |dock, cx| {
 3323                    dock.activate_panel(panel_index, window, cx);
 3324                    dock.set_open(true, window, cx);
 3325                });
 3326            }
 3327        }
 3328    }
 3329
 3330    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3331        for dock in self.all_docks().iter() {
 3332            dock.update(cx, |dock, cx| {
 3333                if dock.panel::<T>().is_some() {
 3334                    dock.set_open(false, window, cx)
 3335                }
 3336            })
 3337        }
 3338    }
 3339
 3340    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3341        self.all_docks()
 3342            .iter()
 3343            .find_map(|dock| dock.read(cx).panel::<T>())
 3344    }
 3345
 3346    fn dismiss_zoomed_items_to_reveal(
 3347        &mut self,
 3348        dock_to_reveal: Option<DockPosition>,
 3349        window: &mut Window,
 3350        cx: &mut Context<Self>,
 3351    ) {
 3352        // If a center pane is zoomed, unzoom it.
 3353        for pane in &self.panes {
 3354            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3355                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3356            }
 3357        }
 3358
 3359        // If another dock is zoomed, hide it.
 3360        let mut focus_center = false;
 3361        for dock in self.all_docks() {
 3362            dock.update(cx, |dock, cx| {
 3363                if Some(dock.position()) != dock_to_reveal
 3364                    && let Some(panel) = dock.active_panel()
 3365                    && panel.is_zoomed(window, cx)
 3366                {
 3367                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3368                    dock.set_open(false, window, cx);
 3369                }
 3370            });
 3371        }
 3372
 3373        if focus_center {
 3374            self.active_pane
 3375                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3376        }
 3377
 3378        if self.zoomed_position != dock_to_reveal {
 3379            self.zoomed = None;
 3380            self.zoomed_position = None;
 3381            cx.emit(Event::ZoomChanged);
 3382        }
 3383
 3384        cx.notify();
 3385    }
 3386
 3387    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3388        let pane = cx.new(|cx| {
 3389            let mut pane = Pane::new(
 3390                self.weak_handle(),
 3391                self.project.clone(),
 3392                self.pane_history_timestamp.clone(),
 3393                None,
 3394                NewFile.boxed_clone(),
 3395                true,
 3396                window,
 3397                cx,
 3398            );
 3399            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3400            pane
 3401        });
 3402        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3403            .detach();
 3404        self.panes.push(pane.clone());
 3405
 3406        window.focus(&pane.focus_handle(cx));
 3407
 3408        cx.emit(Event::PaneAdded(pane.clone()));
 3409        pane
 3410    }
 3411
 3412    pub fn add_item_to_center(
 3413        &mut self,
 3414        item: Box<dyn ItemHandle>,
 3415        window: &mut Window,
 3416        cx: &mut Context<Self>,
 3417    ) -> bool {
 3418        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3419            if let Some(center_pane) = center_pane.upgrade() {
 3420                center_pane.update(cx, |pane, cx| {
 3421                    pane.add_item(item, true, true, None, window, cx)
 3422                });
 3423                true
 3424            } else {
 3425                false
 3426            }
 3427        } else {
 3428            false
 3429        }
 3430    }
 3431
 3432    pub fn add_item_to_active_pane(
 3433        &mut self,
 3434        item: Box<dyn ItemHandle>,
 3435        destination_index: Option<usize>,
 3436        focus_item: bool,
 3437        window: &mut Window,
 3438        cx: &mut App,
 3439    ) {
 3440        self.add_item(
 3441            self.active_pane.clone(),
 3442            item,
 3443            destination_index,
 3444            false,
 3445            focus_item,
 3446            window,
 3447            cx,
 3448        )
 3449    }
 3450
 3451    pub fn add_item(
 3452        &mut self,
 3453        pane: Entity<Pane>,
 3454        item: Box<dyn ItemHandle>,
 3455        destination_index: Option<usize>,
 3456        activate_pane: bool,
 3457        focus_item: bool,
 3458        window: &mut Window,
 3459        cx: &mut App,
 3460    ) {
 3461        pane.update(cx, |pane, cx| {
 3462            pane.add_item(
 3463                item,
 3464                activate_pane,
 3465                focus_item,
 3466                destination_index,
 3467                window,
 3468                cx,
 3469            )
 3470        });
 3471    }
 3472
 3473    pub fn split_item(
 3474        &mut self,
 3475        split_direction: SplitDirection,
 3476        item: Box<dyn ItemHandle>,
 3477        window: &mut Window,
 3478        cx: &mut Context<Self>,
 3479    ) {
 3480        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3481        self.add_item(new_pane, item, None, true, true, window, cx);
 3482    }
 3483
 3484    pub fn open_abs_path(
 3485        &mut self,
 3486        abs_path: PathBuf,
 3487        options: OpenOptions,
 3488        window: &mut Window,
 3489        cx: &mut Context<Self>,
 3490    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3491        cx.spawn_in(window, async move |workspace, cx| {
 3492            let open_paths_task_result = workspace
 3493                .update_in(cx, |workspace, window, cx| {
 3494                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3495                })
 3496                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3497                .await;
 3498            anyhow::ensure!(
 3499                open_paths_task_result.len() == 1,
 3500                "open abs path {abs_path:?} task returned incorrect number of results"
 3501            );
 3502            match open_paths_task_result
 3503                .into_iter()
 3504                .next()
 3505                .expect("ensured single task result")
 3506            {
 3507                Some(open_result) => {
 3508                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3509                }
 3510                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3511            }
 3512        })
 3513    }
 3514
 3515    pub fn split_abs_path(
 3516        &mut self,
 3517        abs_path: PathBuf,
 3518        visible: bool,
 3519        window: &mut Window,
 3520        cx: &mut Context<Self>,
 3521    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3522        let project_path_task =
 3523            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3524        cx.spawn_in(window, async move |this, cx| {
 3525            let (_, path) = project_path_task.await?;
 3526            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3527                .await
 3528        })
 3529    }
 3530
 3531    pub fn open_path(
 3532        &mut self,
 3533        path: impl Into<ProjectPath>,
 3534        pane: Option<WeakEntity<Pane>>,
 3535        focus_item: bool,
 3536        window: &mut Window,
 3537        cx: &mut App,
 3538    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3539        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3540    }
 3541
 3542    pub fn open_path_preview(
 3543        &mut self,
 3544        path: impl Into<ProjectPath>,
 3545        pane: Option<WeakEntity<Pane>>,
 3546        focus_item: bool,
 3547        allow_preview: bool,
 3548        activate: bool,
 3549        window: &mut Window,
 3550        cx: &mut App,
 3551    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3552        let pane = pane.unwrap_or_else(|| {
 3553            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3554                self.panes
 3555                    .first()
 3556                    .expect("There must be an active pane")
 3557                    .downgrade()
 3558            })
 3559        });
 3560
 3561        let project_path = path.into();
 3562        let task = self.load_path(project_path.clone(), window, cx);
 3563        window.spawn(cx, async move |cx| {
 3564            let (project_entry_id, build_item) = task.await?;
 3565
 3566            pane.update_in(cx, |pane, window, cx| {
 3567                pane.open_item(
 3568                    project_entry_id,
 3569                    project_path,
 3570                    focus_item,
 3571                    allow_preview,
 3572                    activate,
 3573                    None,
 3574                    window,
 3575                    cx,
 3576                    build_item,
 3577                )
 3578            })
 3579        })
 3580    }
 3581
 3582    pub fn split_path(
 3583        &mut self,
 3584        path: impl Into<ProjectPath>,
 3585        window: &mut Window,
 3586        cx: &mut Context<Self>,
 3587    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3588        self.split_path_preview(path, false, None, window, cx)
 3589    }
 3590
 3591    pub fn split_path_preview(
 3592        &mut self,
 3593        path: impl Into<ProjectPath>,
 3594        allow_preview: bool,
 3595        split_direction: Option<SplitDirection>,
 3596        window: &mut Window,
 3597        cx: &mut Context<Self>,
 3598    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3599        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3600            self.panes
 3601                .first()
 3602                .expect("There must be an active pane")
 3603                .downgrade()
 3604        });
 3605
 3606        if let Member::Pane(center_pane) = &self.center.root
 3607            && center_pane.read(cx).items_len() == 0
 3608        {
 3609            return self.open_path(path, Some(pane), true, window, cx);
 3610        }
 3611
 3612        let project_path = path.into();
 3613        let task = self.load_path(project_path.clone(), window, cx);
 3614        cx.spawn_in(window, async move |this, cx| {
 3615            let (project_entry_id, build_item) = task.await?;
 3616            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3617                let pane = pane.upgrade()?;
 3618                let new_pane = this.split_pane(
 3619                    pane,
 3620                    split_direction.unwrap_or(SplitDirection::Right),
 3621                    window,
 3622                    cx,
 3623                );
 3624                new_pane.update(cx, |new_pane, cx| {
 3625                    Some(new_pane.open_item(
 3626                        project_entry_id,
 3627                        project_path,
 3628                        true,
 3629                        allow_preview,
 3630                        true,
 3631                        None,
 3632                        window,
 3633                        cx,
 3634                        build_item,
 3635                    ))
 3636                })
 3637            })
 3638            .map(|option| option.context("pane was dropped"))?
 3639        })
 3640    }
 3641
 3642    fn load_path(
 3643        &mut self,
 3644        path: ProjectPath,
 3645        window: &mut Window,
 3646        cx: &mut App,
 3647    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3648        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3649        registry.open_path(self.project(), &path, window, cx)
 3650    }
 3651
 3652    pub fn find_project_item<T>(
 3653        &self,
 3654        pane: &Entity<Pane>,
 3655        project_item: &Entity<T::Item>,
 3656        cx: &App,
 3657    ) -> Option<Entity<T>>
 3658    where
 3659        T: ProjectItem,
 3660    {
 3661        use project::ProjectItem as _;
 3662        let project_item = project_item.read(cx);
 3663        let entry_id = project_item.entry_id(cx);
 3664        let project_path = project_item.project_path(cx);
 3665
 3666        let mut item = None;
 3667        if let Some(entry_id) = entry_id {
 3668            item = pane.read(cx).item_for_entry(entry_id, cx);
 3669        }
 3670        if item.is_none()
 3671            && let Some(project_path) = project_path
 3672        {
 3673            item = pane.read(cx).item_for_path(project_path, cx);
 3674        }
 3675
 3676        item.and_then(|item| item.downcast::<T>())
 3677    }
 3678
 3679    pub fn is_project_item_open<T>(
 3680        &self,
 3681        pane: &Entity<Pane>,
 3682        project_item: &Entity<T::Item>,
 3683        cx: &App,
 3684    ) -> bool
 3685    where
 3686        T: ProjectItem,
 3687    {
 3688        self.find_project_item::<T>(pane, project_item, cx)
 3689            .is_some()
 3690    }
 3691
 3692    pub fn open_project_item<T>(
 3693        &mut self,
 3694        pane: Entity<Pane>,
 3695        project_item: Entity<T::Item>,
 3696        activate_pane: bool,
 3697        focus_item: bool,
 3698        keep_old_preview: bool,
 3699        allow_new_preview: bool,
 3700        window: &mut Window,
 3701        cx: &mut Context<Self>,
 3702    ) -> Entity<T>
 3703    where
 3704        T: ProjectItem,
 3705    {
 3706        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3707
 3708        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3709            if !keep_old_preview
 3710                && let Some(old_id) = old_item_id
 3711                && old_id != item.item_id()
 3712            {
 3713                // switching to a different item, so unpreview old active item
 3714                pane.update(cx, |pane, _| {
 3715                    pane.unpreview_item_if_preview(old_id);
 3716                });
 3717            }
 3718
 3719            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3720            if !allow_new_preview {
 3721                pane.update(cx, |pane, _| {
 3722                    pane.unpreview_item_if_preview(item.item_id());
 3723                });
 3724            }
 3725            return item;
 3726        }
 3727
 3728        let item = pane.update(cx, |pane, cx| {
 3729            cx.new(|cx| {
 3730                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3731            })
 3732        });
 3733        let mut destination_index = None;
 3734        pane.update(cx, |pane, cx| {
 3735            if !keep_old_preview && let Some(old_id) = old_item_id {
 3736                pane.unpreview_item_if_preview(old_id);
 3737            }
 3738            if allow_new_preview {
 3739                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3740            }
 3741        });
 3742
 3743        self.add_item(
 3744            pane,
 3745            Box::new(item.clone()),
 3746            destination_index,
 3747            activate_pane,
 3748            focus_item,
 3749            window,
 3750            cx,
 3751        );
 3752        item
 3753    }
 3754
 3755    pub fn open_shared_screen(
 3756        &mut self,
 3757        peer_id: PeerId,
 3758        window: &mut Window,
 3759        cx: &mut Context<Self>,
 3760    ) {
 3761        if let Some(shared_screen) =
 3762            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3763        {
 3764            self.active_pane.update(cx, |pane, cx| {
 3765                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3766            });
 3767        }
 3768    }
 3769
 3770    pub fn activate_item(
 3771        &mut self,
 3772        item: &dyn ItemHandle,
 3773        activate_pane: bool,
 3774        focus_item: bool,
 3775        window: &mut Window,
 3776        cx: &mut App,
 3777    ) -> bool {
 3778        let result = self.panes.iter().find_map(|pane| {
 3779            pane.read(cx)
 3780                .index_for_item(item)
 3781                .map(|ix| (pane.clone(), ix))
 3782        });
 3783        if let Some((pane, ix)) = result {
 3784            pane.update(cx, |pane, cx| {
 3785                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3786            });
 3787            true
 3788        } else {
 3789            false
 3790        }
 3791    }
 3792
 3793    fn activate_pane_at_index(
 3794        &mut self,
 3795        action: &ActivatePane,
 3796        window: &mut Window,
 3797        cx: &mut Context<Self>,
 3798    ) {
 3799        let panes = self.center.panes();
 3800        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3801            window.focus(&pane.focus_handle(cx));
 3802        } else {
 3803            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3804                .detach();
 3805        }
 3806    }
 3807
 3808    fn move_item_to_pane_at_index(
 3809        &mut self,
 3810        action: &MoveItemToPane,
 3811        window: &mut Window,
 3812        cx: &mut Context<Self>,
 3813    ) {
 3814        let panes = self.center.panes();
 3815        let destination = match panes.get(action.destination) {
 3816            Some(&destination) => destination.clone(),
 3817            None => {
 3818                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3819                    return;
 3820                }
 3821                let direction = SplitDirection::Right;
 3822                let split_off_pane = self
 3823                    .find_pane_in_direction(direction, cx)
 3824                    .unwrap_or_else(|| self.active_pane.clone());
 3825                let new_pane = self.add_pane(window, cx);
 3826                if self
 3827                    .center
 3828                    .split(&split_off_pane, &new_pane, direction, cx)
 3829                    .log_err()
 3830                    .is_none()
 3831                {
 3832                    return;
 3833                };
 3834                new_pane
 3835            }
 3836        };
 3837
 3838        if action.clone {
 3839            if self
 3840                .active_pane
 3841                .read(cx)
 3842                .active_item()
 3843                .is_some_and(|item| item.can_split(cx))
 3844            {
 3845                clone_active_item(
 3846                    self.database_id(),
 3847                    &self.active_pane,
 3848                    &destination,
 3849                    action.focus,
 3850                    window,
 3851                    cx,
 3852                );
 3853                return;
 3854            }
 3855        }
 3856        move_active_item(
 3857            &self.active_pane,
 3858            &destination,
 3859            action.focus,
 3860            true,
 3861            window,
 3862            cx,
 3863        )
 3864    }
 3865
 3866    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3867        let panes = self.center.panes();
 3868        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3869            let next_ix = (ix + 1) % panes.len();
 3870            let next_pane = panes[next_ix].clone();
 3871            window.focus(&next_pane.focus_handle(cx));
 3872        }
 3873    }
 3874
 3875    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3876        let panes = self.center.panes();
 3877        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3878            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3879            let prev_pane = panes[prev_ix].clone();
 3880            window.focus(&prev_pane.focus_handle(cx));
 3881        }
 3882    }
 3883
 3884    pub fn activate_pane_in_direction(
 3885        &mut self,
 3886        direction: SplitDirection,
 3887        window: &mut Window,
 3888        cx: &mut App,
 3889    ) {
 3890        use ActivateInDirectionTarget as Target;
 3891        enum Origin {
 3892            LeftDock,
 3893            RightDock,
 3894            BottomDock,
 3895            Center,
 3896        }
 3897
 3898        let origin: Origin = [
 3899            (&self.left_dock, Origin::LeftDock),
 3900            (&self.right_dock, Origin::RightDock),
 3901            (&self.bottom_dock, Origin::BottomDock),
 3902        ]
 3903        .into_iter()
 3904        .find_map(|(dock, origin)| {
 3905            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3906                Some(origin)
 3907            } else {
 3908                None
 3909            }
 3910        })
 3911        .unwrap_or(Origin::Center);
 3912
 3913        let get_last_active_pane = || {
 3914            let pane = self
 3915                .last_active_center_pane
 3916                .clone()
 3917                .unwrap_or_else(|| {
 3918                    self.panes
 3919                        .first()
 3920                        .expect("There must be an active pane")
 3921                        .downgrade()
 3922                })
 3923                .upgrade()?;
 3924            (pane.read(cx).items_len() != 0).then_some(pane)
 3925        };
 3926
 3927        let try_dock =
 3928            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3929
 3930        let target = match (origin, direction) {
 3931            // We're in the center, so we first try to go to a different pane,
 3932            // otherwise try to go to a dock.
 3933            (Origin::Center, direction) => {
 3934                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3935                    Some(Target::Pane(pane))
 3936                } else {
 3937                    match direction {
 3938                        SplitDirection::Up => None,
 3939                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3940                        SplitDirection::Left => try_dock(&self.left_dock),
 3941                        SplitDirection::Right => try_dock(&self.right_dock),
 3942                    }
 3943                }
 3944            }
 3945
 3946            (Origin::LeftDock, SplitDirection::Right) => {
 3947                if let Some(last_active_pane) = get_last_active_pane() {
 3948                    Some(Target::Pane(last_active_pane))
 3949                } else {
 3950                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3951                }
 3952            }
 3953
 3954            (Origin::LeftDock, SplitDirection::Down)
 3955            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3956
 3957            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3958            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3959            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3960
 3961            (Origin::RightDock, SplitDirection::Left) => {
 3962                if let Some(last_active_pane) = get_last_active_pane() {
 3963                    Some(Target::Pane(last_active_pane))
 3964                } else {
 3965                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3966                }
 3967            }
 3968
 3969            _ => None,
 3970        };
 3971
 3972        match target {
 3973            Some(ActivateInDirectionTarget::Pane(pane)) => {
 3974                let pane = pane.read(cx);
 3975                if let Some(item) = pane.active_item() {
 3976                    item.item_focus_handle(cx).focus(window);
 3977                } else {
 3978                    log::error!(
 3979                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 3980                    );
 3981                }
 3982            }
 3983            Some(ActivateInDirectionTarget::Dock(dock)) => {
 3984                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 3985                window.defer(cx, move |window, cx| {
 3986                    let dock = dock.read(cx);
 3987                    if let Some(panel) = dock.active_panel() {
 3988                        panel.panel_focus_handle(cx).focus(window);
 3989                    } else {
 3990                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 3991                    }
 3992                })
 3993            }
 3994            None => {}
 3995        }
 3996    }
 3997
 3998    pub fn move_item_to_pane_in_direction(
 3999        &mut self,
 4000        action: &MoveItemToPaneInDirection,
 4001        window: &mut Window,
 4002        cx: &mut Context<Self>,
 4003    ) {
 4004        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4005            Some(destination) => destination,
 4006            None => {
 4007                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4008                    return;
 4009                }
 4010                let new_pane = self.add_pane(window, cx);
 4011                if self
 4012                    .center
 4013                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4014                    .log_err()
 4015                    .is_none()
 4016                {
 4017                    return;
 4018                };
 4019                new_pane
 4020            }
 4021        };
 4022
 4023        if action.clone {
 4024            if self
 4025                .active_pane
 4026                .read(cx)
 4027                .active_item()
 4028                .is_some_and(|item| item.can_split(cx))
 4029            {
 4030                clone_active_item(
 4031                    self.database_id(),
 4032                    &self.active_pane,
 4033                    &destination,
 4034                    action.focus,
 4035                    window,
 4036                    cx,
 4037                );
 4038                return;
 4039            }
 4040        }
 4041        move_active_item(
 4042            &self.active_pane,
 4043            &destination,
 4044            action.focus,
 4045            true,
 4046            window,
 4047            cx,
 4048        );
 4049    }
 4050
 4051    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4052        self.center.bounding_box_for_pane(pane)
 4053    }
 4054
 4055    pub fn find_pane_in_direction(
 4056        &mut self,
 4057        direction: SplitDirection,
 4058        cx: &App,
 4059    ) -> Option<Entity<Pane>> {
 4060        self.center
 4061            .find_pane_in_direction(&self.active_pane, direction, cx)
 4062            .cloned()
 4063    }
 4064
 4065    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4066        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4067            self.center.swap(&self.active_pane, &to, cx);
 4068            cx.notify();
 4069        }
 4070    }
 4071
 4072    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4073        if self
 4074            .center
 4075            .move_to_border(&self.active_pane, direction, cx)
 4076            .unwrap()
 4077        {
 4078            cx.notify();
 4079        }
 4080    }
 4081
 4082    pub fn resize_pane(
 4083        &mut self,
 4084        axis: gpui::Axis,
 4085        amount: Pixels,
 4086        window: &mut Window,
 4087        cx: &mut Context<Self>,
 4088    ) {
 4089        let docks = self.all_docks();
 4090        let active_dock = docks
 4091            .into_iter()
 4092            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4093
 4094        if let Some(dock) = active_dock {
 4095            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4096                return;
 4097            };
 4098            match dock.read(cx).position() {
 4099                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4100                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4101                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4102            }
 4103        } else {
 4104            self.center
 4105                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4106        }
 4107        cx.notify();
 4108    }
 4109
 4110    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4111        self.center.reset_pane_sizes(cx);
 4112        cx.notify();
 4113    }
 4114
 4115    fn handle_pane_focused(
 4116        &mut self,
 4117        pane: Entity<Pane>,
 4118        window: &mut Window,
 4119        cx: &mut Context<Self>,
 4120    ) {
 4121        // This is explicitly hoisted out of the following check for pane identity as
 4122        // terminal panel panes are not registered as a center panes.
 4123        self.status_bar.update(cx, |status_bar, cx| {
 4124            status_bar.set_active_pane(&pane, window, cx);
 4125        });
 4126        if self.active_pane != pane {
 4127            self.set_active_pane(&pane, window, cx);
 4128        }
 4129
 4130        if self.last_active_center_pane.is_none() {
 4131            self.last_active_center_pane = Some(pane.downgrade());
 4132        }
 4133
 4134        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4135        if pane.read(cx).is_zoomed() {
 4136            self.zoomed = Some(pane.downgrade().into());
 4137        } else {
 4138            self.zoomed = None;
 4139        }
 4140        self.zoomed_position = None;
 4141        cx.emit(Event::ZoomChanged);
 4142        self.update_active_view_for_followers(window, cx);
 4143        pane.update(cx, |pane, _| {
 4144            pane.track_alternate_file_items();
 4145        });
 4146
 4147        cx.notify();
 4148    }
 4149
 4150    fn set_active_pane(
 4151        &mut self,
 4152        pane: &Entity<Pane>,
 4153        window: &mut Window,
 4154        cx: &mut Context<Self>,
 4155    ) {
 4156        self.active_pane = pane.clone();
 4157        self.active_item_path_changed(window, cx);
 4158        self.last_active_center_pane = Some(pane.downgrade());
 4159    }
 4160
 4161    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4162        self.update_active_view_for_followers(window, cx);
 4163    }
 4164
 4165    fn handle_pane_event(
 4166        &mut self,
 4167        pane: &Entity<Pane>,
 4168        event: &pane::Event,
 4169        window: &mut Window,
 4170        cx: &mut Context<Self>,
 4171    ) {
 4172        let mut serialize_workspace = true;
 4173        match event {
 4174            pane::Event::AddItem { item } => {
 4175                item.added_to_pane(self, pane.clone(), window, cx);
 4176                cx.emit(Event::ItemAdded {
 4177                    item: item.boxed_clone(),
 4178                });
 4179            }
 4180            pane::Event::Split {
 4181                direction,
 4182                clone_active_item,
 4183            } => {
 4184                if *clone_active_item {
 4185                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4186                        .detach();
 4187                } else {
 4188                    self.split_and_move(pane.clone(), *direction, window, cx);
 4189                }
 4190            }
 4191            pane::Event::JoinIntoNext => {
 4192                self.join_pane_into_next(pane.clone(), window, cx);
 4193            }
 4194            pane::Event::JoinAll => {
 4195                self.join_all_panes(window, cx);
 4196            }
 4197            pane::Event::Remove { focus_on_pane } => {
 4198                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4199            }
 4200            pane::Event::ActivateItem {
 4201                local,
 4202                focus_changed,
 4203            } => {
 4204                window.invalidate_character_coordinates();
 4205
 4206                pane.update(cx, |pane, _| {
 4207                    pane.track_alternate_file_items();
 4208                });
 4209                if *local {
 4210                    self.unfollow_in_pane(pane, window, cx);
 4211                }
 4212                serialize_workspace = *focus_changed || pane != self.active_pane();
 4213                if pane == self.active_pane() {
 4214                    self.active_item_path_changed(window, cx);
 4215                    self.update_active_view_for_followers(window, cx);
 4216                } else if *local {
 4217                    self.set_active_pane(pane, window, cx);
 4218                }
 4219            }
 4220            pane::Event::UserSavedItem { item, save_intent } => {
 4221                cx.emit(Event::UserSavedItem {
 4222                    pane: pane.downgrade(),
 4223                    item: item.boxed_clone(),
 4224                    save_intent: *save_intent,
 4225                });
 4226                serialize_workspace = false;
 4227            }
 4228            pane::Event::ChangeItemTitle => {
 4229                if *pane == self.active_pane {
 4230                    self.active_item_path_changed(window, cx);
 4231                }
 4232                serialize_workspace = false;
 4233            }
 4234            pane::Event::RemovedItem { item } => {
 4235                cx.emit(Event::ActiveItemChanged);
 4236                self.update_window_edited(window, cx);
 4237                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4238                    && entry.get().entity_id() == pane.entity_id()
 4239                {
 4240                    entry.remove();
 4241                }
 4242                cx.emit(Event::ItemRemoved {
 4243                    item_id: item.item_id(),
 4244                });
 4245            }
 4246            pane::Event::Focus => {
 4247                window.invalidate_character_coordinates();
 4248                self.handle_pane_focused(pane.clone(), window, cx);
 4249            }
 4250            pane::Event::ZoomIn => {
 4251                if *pane == self.active_pane {
 4252                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4253                    if pane.read(cx).has_focus(window, cx) {
 4254                        self.zoomed = Some(pane.downgrade().into());
 4255                        self.zoomed_position = None;
 4256                        cx.emit(Event::ZoomChanged);
 4257                    }
 4258                    cx.notify();
 4259                }
 4260            }
 4261            pane::Event::ZoomOut => {
 4262                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4263                if self.zoomed_position.is_none() {
 4264                    self.zoomed = None;
 4265                    cx.emit(Event::ZoomChanged);
 4266                }
 4267                cx.notify();
 4268            }
 4269            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4270        }
 4271
 4272        if serialize_workspace {
 4273            self.serialize_workspace(window, cx);
 4274        }
 4275    }
 4276
 4277    pub fn unfollow_in_pane(
 4278        &mut self,
 4279        pane: &Entity<Pane>,
 4280        window: &mut Window,
 4281        cx: &mut Context<Workspace>,
 4282    ) -> Option<CollaboratorId> {
 4283        let leader_id = self.leader_for_pane(pane)?;
 4284        self.unfollow(leader_id, window, cx);
 4285        Some(leader_id)
 4286    }
 4287
 4288    pub fn split_pane(
 4289        &mut self,
 4290        pane_to_split: Entity<Pane>,
 4291        split_direction: SplitDirection,
 4292        window: &mut Window,
 4293        cx: &mut Context<Self>,
 4294    ) -> Entity<Pane> {
 4295        let new_pane = self.add_pane(window, cx);
 4296        self.center
 4297            .split(&pane_to_split, &new_pane, split_direction, cx)
 4298            .unwrap();
 4299        cx.notify();
 4300        new_pane
 4301    }
 4302
 4303    pub fn split_and_move(
 4304        &mut self,
 4305        pane: Entity<Pane>,
 4306        direction: SplitDirection,
 4307        window: &mut Window,
 4308        cx: &mut Context<Self>,
 4309    ) {
 4310        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4311            return;
 4312        };
 4313        let new_pane = self.add_pane(window, cx);
 4314        new_pane.update(cx, |pane, cx| {
 4315            pane.add_item(item, true, true, None, window, cx)
 4316        });
 4317        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4318        cx.notify();
 4319    }
 4320
 4321    pub fn split_and_clone(
 4322        &mut self,
 4323        pane: Entity<Pane>,
 4324        direction: SplitDirection,
 4325        window: &mut Window,
 4326        cx: &mut Context<Self>,
 4327    ) -> Task<Option<Entity<Pane>>> {
 4328        let Some(item) = pane.read(cx).active_item() else {
 4329            return Task::ready(None);
 4330        };
 4331        if !item.can_split(cx) {
 4332            return Task::ready(None);
 4333        }
 4334        let task = item.clone_on_split(self.database_id(), window, cx);
 4335        cx.spawn_in(window, async move |this, cx| {
 4336            if let Some(clone) = task.await {
 4337                this.update_in(cx, |this, window, cx| {
 4338                    let new_pane = this.add_pane(window, cx);
 4339                    new_pane.update(cx, |pane, cx| {
 4340                        pane.add_item(clone, true, true, None, window, cx)
 4341                    });
 4342                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4343                    cx.notify();
 4344                    new_pane
 4345                })
 4346                .ok()
 4347            } else {
 4348                None
 4349            }
 4350        })
 4351    }
 4352
 4353    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4354        let active_item = self.active_pane.read(cx).active_item();
 4355        for pane in &self.panes {
 4356            join_pane_into_active(&self.active_pane, pane, window, cx);
 4357        }
 4358        if let Some(active_item) = active_item {
 4359            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4360        }
 4361        cx.notify();
 4362    }
 4363
 4364    pub fn join_pane_into_next(
 4365        &mut self,
 4366        pane: Entity<Pane>,
 4367        window: &mut Window,
 4368        cx: &mut Context<Self>,
 4369    ) {
 4370        let next_pane = self
 4371            .find_pane_in_direction(SplitDirection::Right, cx)
 4372            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4373            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4374            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4375        let Some(next_pane) = next_pane else {
 4376            return;
 4377        };
 4378        move_all_items(&pane, &next_pane, window, cx);
 4379        cx.notify();
 4380    }
 4381
 4382    fn remove_pane(
 4383        &mut self,
 4384        pane: Entity<Pane>,
 4385        focus_on: Option<Entity<Pane>>,
 4386        window: &mut Window,
 4387        cx: &mut Context<Self>,
 4388    ) {
 4389        if self.center.remove(&pane, cx).unwrap() {
 4390            self.force_remove_pane(&pane, &focus_on, window, cx);
 4391            self.unfollow_in_pane(&pane, window, cx);
 4392            self.last_leaders_by_pane.remove(&pane.downgrade());
 4393            for removed_item in pane.read(cx).items() {
 4394                self.panes_by_item.remove(&removed_item.item_id());
 4395            }
 4396
 4397            cx.notify();
 4398        } else {
 4399            self.active_item_path_changed(window, cx);
 4400        }
 4401        cx.emit(Event::PaneRemoved);
 4402    }
 4403
 4404    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4405        &mut self.panes
 4406    }
 4407
 4408    pub fn panes(&self) -> &[Entity<Pane>] {
 4409        &self.panes
 4410    }
 4411
 4412    pub fn active_pane(&self) -> &Entity<Pane> {
 4413        &self.active_pane
 4414    }
 4415
 4416    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4417        for dock in self.all_docks() {
 4418            if dock.focus_handle(cx).contains_focused(window, cx)
 4419                && let Some(pane) = dock
 4420                    .read(cx)
 4421                    .active_panel()
 4422                    .and_then(|panel| panel.pane(cx))
 4423            {
 4424                return pane;
 4425            }
 4426        }
 4427        self.active_pane().clone()
 4428    }
 4429
 4430    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4431        self.find_pane_in_direction(SplitDirection::Right, cx)
 4432            .unwrap_or_else(|| {
 4433                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4434            })
 4435    }
 4436
 4437    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4438        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4439        weak_pane.upgrade()
 4440    }
 4441
 4442    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4443        self.follower_states.retain(|leader_id, state| {
 4444            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4445                for item in state.items_by_leader_view_id.values() {
 4446                    item.view.set_leader_id(None, window, cx);
 4447                }
 4448                false
 4449            } else {
 4450                true
 4451            }
 4452        });
 4453        cx.notify();
 4454    }
 4455
 4456    pub fn start_following(
 4457        &mut self,
 4458        leader_id: impl Into<CollaboratorId>,
 4459        window: &mut Window,
 4460        cx: &mut Context<Self>,
 4461    ) -> Option<Task<Result<()>>> {
 4462        let leader_id = leader_id.into();
 4463        let pane = self.active_pane().clone();
 4464
 4465        self.last_leaders_by_pane
 4466            .insert(pane.downgrade(), leader_id);
 4467        self.unfollow(leader_id, window, cx);
 4468        self.unfollow_in_pane(&pane, window, cx);
 4469        self.follower_states.insert(
 4470            leader_id,
 4471            FollowerState {
 4472                center_pane: pane.clone(),
 4473                dock_pane: None,
 4474                active_view_id: None,
 4475                items_by_leader_view_id: Default::default(),
 4476            },
 4477        );
 4478        cx.notify();
 4479
 4480        match leader_id {
 4481            CollaboratorId::PeerId(leader_peer_id) => {
 4482                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4483                let project_id = self.project.read(cx).remote_id();
 4484                let request = self.app_state.client.request(proto::Follow {
 4485                    room_id,
 4486                    project_id,
 4487                    leader_id: Some(leader_peer_id),
 4488                });
 4489
 4490                Some(cx.spawn_in(window, async move |this, cx| {
 4491                    let response = request.await?;
 4492                    this.update(cx, |this, _| {
 4493                        let state = this
 4494                            .follower_states
 4495                            .get_mut(&leader_id)
 4496                            .context("following interrupted")?;
 4497                        state.active_view_id = response
 4498                            .active_view
 4499                            .as_ref()
 4500                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4501                        anyhow::Ok(())
 4502                    })??;
 4503                    if let Some(view) = response.active_view {
 4504                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4505                    }
 4506                    this.update_in(cx, |this, window, cx| {
 4507                        this.leader_updated(leader_id, window, cx)
 4508                    })?;
 4509                    Ok(())
 4510                }))
 4511            }
 4512            CollaboratorId::Agent => {
 4513                self.leader_updated(leader_id, window, cx)?;
 4514                Some(Task::ready(Ok(())))
 4515            }
 4516        }
 4517    }
 4518
 4519    pub fn follow_next_collaborator(
 4520        &mut self,
 4521        _: &FollowNextCollaborator,
 4522        window: &mut Window,
 4523        cx: &mut Context<Self>,
 4524    ) {
 4525        let collaborators = self.project.read(cx).collaborators();
 4526        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4527            let mut collaborators = collaborators.keys().copied();
 4528            for peer_id in collaborators.by_ref() {
 4529                if CollaboratorId::PeerId(peer_id) == leader_id {
 4530                    break;
 4531                }
 4532            }
 4533            collaborators.next().map(CollaboratorId::PeerId)
 4534        } else if let Some(last_leader_id) =
 4535            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4536        {
 4537            match last_leader_id {
 4538                CollaboratorId::PeerId(peer_id) => {
 4539                    if collaborators.contains_key(peer_id) {
 4540                        Some(*last_leader_id)
 4541                    } else {
 4542                        None
 4543                    }
 4544                }
 4545                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4546            }
 4547        } else {
 4548            None
 4549        };
 4550
 4551        let pane = self.active_pane.clone();
 4552        let Some(leader_id) = next_leader_id.or_else(|| {
 4553            Some(CollaboratorId::PeerId(
 4554                collaborators.keys().copied().next()?,
 4555            ))
 4556        }) else {
 4557            return;
 4558        };
 4559        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4560            return;
 4561        }
 4562        if let Some(task) = self.start_following(leader_id, window, cx) {
 4563            task.detach_and_log_err(cx)
 4564        }
 4565    }
 4566
 4567    pub fn follow(
 4568        &mut self,
 4569        leader_id: impl Into<CollaboratorId>,
 4570        window: &mut Window,
 4571        cx: &mut Context<Self>,
 4572    ) {
 4573        let leader_id = leader_id.into();
 4574
 4575        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4576            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4577                return;
 4578            };
 4579            let room = room.read(cx);
 4580            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4581                return;
 4582            };
 4583
 4584            let project = self.project.read(cx);
 4585
 4586            let other_project_id = match remote_participant.location {
 4587                call::ParticipantLocation::External => None,
 4588                call::ParticipantLocation::UnsharedProject => None,
 4589                call::ParticipantLocation::SharedProject { project_id } => {
 4590                    if Some(project_id) == project.remote_id() {
 4591                        None
 4592                    } else {
 4593                        Some(project_id)
 4594                    }
 4595                }
 4596            };
 4597
 4598            // if they are active in another project, follow there.
 4599            if let Some(project_id) = other_project_id {
 4600                let app_state = self.app_state.clone();
 4601                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4602                    .detach_and_log_err(cx);
 4603            }
 4604        }
 4605
 4606        // if you're already following, find the right pane and focus it.
 4607        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4608            window.focus(&follower_state.pane().focus_handle(cx));
 4609
 4610            return;
 4611        }
 4612
 4613        // Otherwise, follow.
 4614        if let Some(task) = self.start_following(leader_id, window, cx) {
 4615            task.detach_and_log_err(cx)
 4616        }
 4617    }
 4618
 4619    pub fn unfollow(
 4620        &mut self,
 4621        leader_id: impl Into<CollaboratorId>,
 4622        window: &mut Window,
 4623        cx: &mut Context<Self>,
 4624    ) -> Option<()> {
 4625        cx.notify();
 4626
 4627        let leader_id = leader_id.into();
 4628        let state = self.follower_states.remove(&leader_id)?;
 4629        for (_, item) in state.items_by_leader_view_id {
 4630            item.view.set_leader_id(None, window, cx);
 4631        }
 4632
 4633        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4634            let project_id = self.project.read(cx).remote_id();
 4635            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4636            self.app_state
 4637                .client
 4638                .send(proto::Unfollow {
 4639                    room_id,
 4640                    project_id,
 4641                    leader_id: Some(leader_peer_id),
 4642                })
 4643                .log_err();
 4644        }
 4645
 4646        Some(())
 4647    }
 4648
 4649    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4650        self.follower_states.contains_key(&id.into())
 4651    }
 4652
 4653    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4654        cx.emit(Event::ActiveItemChanged);
 4655        let active_entry = self.active_project_path(cx);
 4656        self.project.update(cx, |project, cx| {
 4657            project.set_active_path(active_entry.clone(), cx)
 4658        });
 4659
 4660        if let Some(project_path) = &active_entry {
 4661            let git_store_entity = self.project.read(cx).git_store().clone();
 4662            git_store_entity.update(cx, |git_store, cx| {
 4663                git_store.set_active_repo_for_path(project_path, cx);
 4664            });
 4665        }
 4666
 4667        self.update_window_title(window, cx);
 4668    }
 4669
 4670    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4671        let project = self.project().read(cx);
 4672        let mut title = String::new();
 4673
 4674        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4675            let name = {
 4676                let settings_location = SettingsLocation {
 4677                    worktree_id: worktree.read(cx).id(),
 4678                    path: RelPath::empty(),
 4679                };
 4680
 4681                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4682                match &settings.project_name {
 4683                    Some(name) => name.as_str(),
 4684                    None => worktree.read(cx).root_name_str(),
 4685                }
 4686            };
 4687            if i > 0 {
 4688                title.push_str(", ");
 4689            }
 4690            title.push_str(name);
 4691        }
 4692
 4693        if title.is_empty() {
 4694            title = "empty project".to_string();
 4695        }
 4696
 4697        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4698            let filename = path.path.file_name().or_else(|| {
 4699                Some(
 4700                    project
 4701                        .worktree_for_id(path.worktree_id, cx)?
 4702                        .read(cx)
 4703                        .root_name_str(),
 4704                )
 4705            });
 4706
 4707            if let Some(filename) = filename {
 4708                title.push_str("");
 4709                title.push_str(filename.as_ref());
 4710            }
 4711        }
 4712
 4713        if project.is_via_collab() {
 4714            title.push_str("");
 4715        } else if project.is_shared() {
 4716            title.push_str("");
 4717        }
 4718
 4719        if let Some(last_title) = self.last_window_title.as_ref()
 4720            && &title == last_title
 4721        {
 4722            return;
 4723        }
 4724        window.set_window_title(&title);
 4725        SystemWindowTabController::update_tab_title(
 4726            cx,
 4727            window.window_handle().window_id(),
 4728            SharedString::from(&title),
 4729        );
 4730        self.last_window_title = Some(title);
 4731    }
 4732
 4733    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4734        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4735        if is_edited != self.window_edited {
 4736            self.window_edited = is_edited;
 4737            window.set_window_edited(self.window_edited)
 4738        }
 4739    }
 4740
 4741    fn update_item_dirty_state(
 4742        &mut self,
 4743        item: &dyn ItemHandle,
 4744        window: &mut Window,
 4745        cx: &mut App,
 4746    ) {
 4747        let is_dirty = item.is_dirty(cx);
 4748        let item_id = item.item_id();
 4749        let was_dirty = self.dirty_items.contains_key(&item_id);
 4750        if is_dirty == was_dirty {
 4751            return;
 4752        }
 4753        if was_dirty {
 4754            self.dirty_items.remove(&item_id);
 4755            self.update_window_edited(window, cx);
 4756            return;
 4757        }
 4758        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4759            let s = item.on_release(
 4760                cx,
 4761                Box::new(move |cx| {
 4762                    window_handle
 4763                        .update(cx, |this, window, cx| {
 4764                            this.dirty_items.remove(&item_id);
 4765                            this.update_window_edited(window, cx)
 4766                        })
 4767                        .ok();
 4768                }),
 4769            );
 4770            self.dirty_items.insert(item_id, s);
 4771            self.update_window_edited(window, cx);
 4772        }
 4773    }
 4774
 4775    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4776        if self.notifications.is_empty() {
 4777            None
 4778        } else {
 4779            Some(
 4780                div()
 4781                    .absolute()
 4782                    .right_3()
 4783                    .bottom_3()
 4784                    .w_112()
 4785                    .h_full()
 4786                    .flex()
 4787                    .flex_col()
 4788                    .justify_end()
 4789                    .gap_2()
 4790                    .children(
 4791                        self.notifications
 4792                            .iter()
 4793                            .map(|(_, notification)| notification.clone().into_any()),
 4794                    ),
 4795            )
 4796        }
 4797    }
 4798
 4799    // RPC handlers
 4800
 4801    fn active_view_for_follower(
 4802        &self,
 4803        follower_project_id: Option<u64>,
 4804        window: &mut Window,
 4805        cx: &mut Context<Self>,
 4806    ) -> Option<proto::View> {
 4807        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4808        let item = item?;
 4809        let leader_id = self
 4810            .pane_for(&*item)
 4811            .and_then(|pane| self.leader_for_pane(&pane));
 4812        let leader_peer_id = match leader_id {
 4813            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4814            Some(CollaboratorId::Agent) | None => None,
 4815        };
 4816
 4817        let item_handle = item.to_followable_item_handle(cx)?;
 4818        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4819        let variant = item_handle.to_state_proto(window, cx)?;
 4820
 4821        if item_handle.is_project_item(window, cx)
 4822            && (follower_project_id.is_none()
 4823                || follower_project_id != self.project.read(cx).remote_id())
 4824        {
 4825            return None;
 4826        }
 4827
 4828        Some(proto::View {
 4829            id: id.to_proto(),
 4830            leader_id: leader_peer_id,
 4831            variant: Some(variant),
 4832            panel_id: panel_id.map(|id| id as i32),
 4833        })
 4834    }
 4835
 4836    fn handle_follow(
 4837        &mut self,
 4838        follower_project_id: Option<u64>,
 4839        window: &mut Window,
 4840        cx: &mut Context<Self>,
 4841    ) -> proto::FollowResponse {
 4842        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4843
 4844        cx.notify();
 4845        proto::FollowResponse {
 4846            // TODO: Remove after version 0.145.x stabilizes.
 4847            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4848            views: active_view.iter().cloned().collect(),
 4849            active_view,
 4850        }
 4851    }
 4852
 4853    fn handle_update_followers(
 4854        &mut self,
 4855        leader_id: PeerId,
 4856        message: proto::UpdateFollowers,
 4857        _window: &mut Window,
 4858        _cx: &mut Context<Self>,
 4859    ) {
 4860        self.leader_updates_tx
 4861            .unbounded_send((leader_id, message))
 4862            .ok();
 4863    }
 4864
 4865    async fn process_leader_update(
 4866        this: &WeakEntity<Self>,
 4867        leader_id: PeerId,
 4868        update: proto::UpdateFollowers,
 4869        cx: &mut AsyncWindowContext,
 4870    ) -> Result<()> {
 4871        match update.variant.context("invalid update")? {
 4872            proto::update_followers::Variant::CreateView(view) => {
 4873                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4874                let should_add_view = this.update(cx, |this, _| {
 4875                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4876                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4877                    } else {
 4878                        anyhow::Ok(false)
 4879                    }
 4880                })??;
 4881
 4882                if should_add_view {
 4883                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4884                }
 4885            }
 4886            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4887                let should_add_view = this.update(cx, |this, _| {
 4888                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4889                        state.active_view_id = update_active_view
 4890                            .view
 4891                            .as_ref()
 4892                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4893
 4894                        if state.active_view_id.is_some_and(|view_id| {
 4895                            !state.items_by_leader_view_id.contains_key(&view_id)
 4896                        }) {
 4897                            anyhow::Ok(true)
 4898                        } else {
 4899                            anyhow::Ok(false)
 4900                        }
 4901                    } else {
 4902                        anyhow::Ok(false)
 4903                    }
 4904                })??;
 4905
 4906                if should_add_view && let Some(view) = update_active_view.view {
 4907                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4908                }
 4909            }
 4910            proto::update_followers::Variant::UpdateView(update_view) => {
 4911                let variant = update_view.variant.context("missing update view variant")?;
 4912                let id = update_view.id.context("missing update view id")?;
 4913                let mut tasks = Vec::new();
 4914                this.update_in(cx, |this, window, cx| {
 4915                    let project = this.project.clone();
 4916                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4917                        let view_id = ViewId::from_proto(id.clone())?;
 4918                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4919                            tasks.push(item.view.apply_update_proto(
 4920                                &project,
 4921                                variant.clone(),
 4922                                window,
 4923                                cx,
 4924                            ));
 4925                        }
 4926                    }
 4927                    anyhow::Ok(())
 4928                })??;
 4929                try_join_all(tasks).await.log_err();
 4930            }
 4931        }
 4932        this.update_in(cx, |this, window, cx| {
 4933            this.leader_updated(leader_id, window, cx)
 4934        })?;
 4935        Ok(())
 4936    }
 4937
 4938    async fn add_view_from_leader(
 4939        this: WeakEntity<Self>,
 4940        leader_id: PeerId,
 4941        view: &proto::View,
 4942        cx: &mut AsyncWindowContext,
 4943    ) -> Result<()> {
 4944        let this = this.upgrade().context("workspace dropped")?;
 4945
 4946        let Some(id) = view.id.clone() else {
 4947            anyhow::bail!("no id for view");
 4948        };
 4949        let id = ViewId::from_proto(id)?;
 4950        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4951
 4952        let pane = this.update(cx, |this, _cx| {
 4953            let state = this
 4954                .follower_states
 4955                .get(&leader_id.into())
 4956                .context("stopped following")?;
 4957            anyhow::Ok(state.pane().clone())
 4958        })??;
 4959        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4960            let client = this.read(cx).client().clone();
 4961            pane.items().find_map(|item| {
 4962                let item = item.to_followable_item_handle(cx)?;
 4963                if item.remote_id(&client, window, cx) == Some(id) {
 4964                    Some(item)
 4965                } else {
 4966                    None
 4967                }
 4968            })
 4969        })?;
 4970        let item = if let Some(existing_item) = existing_item {
 4971            existing_item
 4972        } else {
 4973            let variant = view.variant.clone();
 4974            anyhow::ensure!(variant.is_some(), "missing view variant");
 4975
 4976            let task = cx.update(|window, cx| {
 4977                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 4978            })?;
 4979
 4980            let Some(task) = task else {
 4981                anyhow::bail!(
 4982                    "failed to construct view from leader (maybe from a different version of zed?)"
 4983                );
 4984            };
 4985
 4986            let mut new_item = task.await?;
 4987            pane.update_in(cx, |pane, window, cx| {
 4988                let mut item_to_remove = None;
 4989                for (ix, item) in pane.items().enumerate() {
 4990                    if let Some(item) = item.to_followable_item_handle(cx) {
 4991                        match new_item.dedup(item.as_ref(), window, cx) {
 4992                            Some(item::Dedup::KeepExisting) => {
 4993                                new_item =
 4994                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 4995                                break;
 4996                            }
 4997                            Some(item::Dedup::ReplaceExisting) => {
 4998                                item_to_remove = Some((ix, item.item_id()));
 4999                                break;
 5000                            }
 5001                            None => {}
 5002                        }
 5003                    }
 5004                }
 5005
 5006                if let Some((ix, id)) = item_to_remove {
 5007                    pane.remove_item(id, false, false, window, cx);
 5008                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5009                }
 5010            })?;
 5011
 5012            new_item
 5013        };
 5014
 5015        this.update_in(cx, |this, window, cx| {
 5016            let state = this.follower_states.get_mut(&leader_id.into())?;
 5017            item.set_leader_id(Some(leader_id.into()), window, cx);
 5018            state.items_by_leader_view_id.insert(
 5019                id,
 5020                FollowerView {
 5021                    view: item,
 5022                    location: panel_id,
 5023                },
 5024            );
 5025
 5026            Some(())
 5027        })?;
 5028
 5029        Ok(())
 5030    }
 5031
 5032    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5033        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5034            return;
 5035        };
 5036
 5037        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5038            let buffer_entity_id = agent_location.buffer.entity_id();
 5039            let view_id = ViewId {
 5040                creator: CollaboratorId::Agent,
 5041                id: buffer_entity_id.as_u64(),
 5042            };
 5043            follower_state.active_view_id = Some(view_id);
 5044
 5045            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5046                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5047                hash_map::Entry::Vacant(entry) => {
 5048                    let existing_view =
 5049                        follower_state
 5050                            .center_pane
 5051                            .read(cx)
 5052                            .items()
 5053                            .find_map(|item| {
 5054                                let item = item.to_followable_item_handle(cx)?;
 5055                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5056                                    && item.project_item_model_ids(cx).as_slice()
 5057                                        == [buffer_entity_id]
 5058                                {
 5059                                    Some(item)
 5060                                } else {
 5061                                    None
 5062                                }
 5063                            });
 5064                    let view = existing_view.or_else(|| {
 5065                        agent_location.buffer.upgrade().and_then(|buffer| {
 5066                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5067                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5068                            })?
 5069                            .to_followable_item_handle(cx)
 5070                        })
 5071                    });
 5072
 5073                    view.map(|view| {
 5074                        entry.insert(FollowerView {
 5075                            view,
 5076                            location: None,
 5077                        })
 5078                    })
 5079                }
 5080            };
 5081
 5082            if let Some(item) = item {
 5083                item.view
 5084                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5085                item.view
 5086                    .update_agent_location(agent_location.position, window, cx);
 5087            }
 5088        } else {
 5089            follower_state.active_view_id = None;
 5090        }
 5091
 5092        self.leader_updated(CollaboratorId::Agent, window, cx);
 5093    }
 5094
 5095    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5096        let mut is_project_item = true;
 5097        let mut update = proto::UpdateActiveView::default();
 5098        if window.is_window_active() {
 5099            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5100
 5101            if let Some(item) = active_item
 5102                && item.item_focus_handle(cx).contains_focused(window, cx)
 5103            {
 5104                let leader_id = self
 5105                    .pane_for(&*item)
 5106                    .and_then(|pane| self.leader_for_pane(&pane));
 5107                let leader_peer_id = match leader_id {
 5108                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5109                    Some(CollaboratorId::Agent) | None => None,
 5110                };
 5111
 5112                if let Some(item) = item.to_followable_item_handle(cx) {
 5113                    let id = item
 5114                        .remote_id(&self.app_state.client, window, cx)
 5115                        .map(|id| id.to_proto());
 5116
 5117                    if let Some(id) = id
 5118                        && let Some(variant) = item.to_state_proto(window, cx)
 5119                    {
 5120                        let view = Some(proto::View {
 5121                            id: id.clone(),
 5122                            leader_id: leader_peer_id,
 5123                            variant: Some(variant),
 5124                            panel_id: panel_id.map(|id| id as i32),
 5125                        });
 5126
 5127                        is_project_item = item.is_project_item(window, cx);
 5128                        update = proto::UpdateActiveView {
 5129                            view,
 5130                            // TODO: Remove after version 0.145.x stabilizes.
 5131                            id,
 5132                            leader_id: leader_peer_id,
 5133                        };
 5134                    };
 5135                }
 5136            }
 5137        }
 5138
 5139        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5140        if active_view_id != self.last_active_view_id.as_ref() {
 5141            self.last_active_view_id = active_view_id.cloned();
 5142            self.update_followers(
 5143                is_project_item,
 5144                proto::update_followers::Variant::UpdateActiveView(update),
 5145                window,
 5146                cx,
 5147            );
 5148        }
 5149    }
 5150
 5151    fn active_item_for_followers(
 5152        &self,
 5153        window: &mut Window,
 5154        cx: &mut App,
 5155    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5156        let mut active_item = None;
 5157        let mut panel_id = None;
 5158        for dock in self.all_docks() {
 5159            if dock.focus_handle(cx).contains_focused(window, cx)
 5160                && let Some(panel) = dock.read(cx).active_panel()
 5161                && let Some(pane) = panel.pane(cx)
 5162                && let Some(item) = pane.read(cx).active_item()
 5163            {
 5164                active_item = Some(item);
 5165                panel_id = panel.remote_id();
 5166                break;
 5167            }
 5168        }
 5169
 5170        if active_item.is_none() {
 5171            active_item = self.active_pane().read(cx).active_item();
 5172        }
 5173        (active_item, panel_id)
 5174    }
 5175
 5176    fn update_followers(
 5177        &self,
 5178        project_only: bool,
 5179        update: proto::update_followers::Variant,
 5180        _: &mut Window,
 5181        cx: &mut App,
 5182    ) -> Option<()> {
 5183        // If this update only applies to for followers in the current project,
 5184        // then skip it unless this project is shared. If it applies to all
 5185        // followers, regardless of project, then set `project_id` to none,
 5186        // indicating that it goes to all followers.
 5187        let project_id = if project_only {
 5188            Some(self.project.read(cx).remote_id()?)
 5189        } else {
 5190            None
 5191        };
 5192        self.app_state().workspace_store.update(cx, |store, cx| {
 5193            store.update_followers(project_id, update, cx)
 5194        })
 5195    }
 5196
 5197    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5198        self.follower_states.iter().find_map(|(leader_id, state)| {
 5199            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5200                Some(*leader_id)
 5201            } else {
 5202                None
 5203            }
 5204        })
 5205    }
 5206
 5207    fn leader_updated(
 5208        &mut self,
 5209        leader_id: impl Into<CollaboratorId>,
 5210        window: &mut Window,
 5211        cx: &mut Context<Self>,
 5212    ) -> Option<Box<dyn ItemHandle>> {
 5213        cx.notify();
 5214
 5215        let leader_id = leader_id.into();
 5216        let (panel_id, item) = match leader_id {
 5217            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5218            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5219        };
 5220
 5221        let state = self.follower_states.get(&leader_id)?;
 5222        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5223        let pane;
 5224        if let Some(panel_id) = panel_id {
 5225            pane = self
 5226                .activate_panel_for_proto_id(panel_id, window, cx)?
 5227                .pane(cx)?;
 5228            let state = self.follower_states.get_mut(&leader_id)?;
 5229            state.dock_pane = Some(pane.clone());
 5230        } else {
 5231            pane = state.center_pane.clone();
 5232            let state = self.follower_states.get_mut(&leader_id)?;
 5233            if let Some(dock_pane) = state.dock_pane.take() {
 5234                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5235            }
 5236        }
 5237
 5238        pane.update(cx, |pane, cx| {
 5239            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5240            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5241                pane.activate_item(index, false, false, window, cx);
 5242            } else {
 5243                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5244            }
 5245
 5246            if focus_active_item {
 5247                pane.focus_active_item(window, cx)
 5248            }
 5249        });
 5250
 5251        Some(item)
 5252    }
 5253
 5254    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5255        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5256        let active_view_id = state.active_view_id?;
 5257        Some(
 5258            state
 5259                .items_by_leader_view_id
 5260                .get(&active_view_id)?
 5261                .view
 5262                .boxed_clone(),
 5263        )
 5264    }
 5265
 5266    fn active_item_for_peer(
 5267        &self,
 5268        peer_id: PeerId,
 5269        window: &mut Window,
 5270        cx: &mut Context<Self>,
 5271    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5272        let call = self.active_call()?;
 5273        let room = call.read(cx).room()?.read(cx);
 5274        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5275        let leader_in_this_app;
 5276        let leader_in_this_project;
 5277        match participant.location {
 5278            call::ParticipantLocation::SharedProject { project_id } => {
 5279                leader_in_this_app = true;
 5280                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5281            }
 5282            call::ParticipantLocation::UnsharedProject => {
 5283                leader_in_this_app = true;
 5284                leader_in_this_project = false;
 5285            }
 5286            call::ParticipantLocation::External => {
 5287                leader_in_this_app = false;
 5288                leader_in_this_project = false;
 5289            }
 5290        };
 5291        let state = self.follower_states.get(&peer_id.into())?;
 5292        let mut item_to_activate = None;
 5293        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5294            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5295                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5296            {
 5297                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5298            }
 5299        } else if let Some(shared_screen) =
 5300            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5301        {
 5302            item_to_activate = Some((None, Box::new(shared_screen)));
 5303        }
 5304        item_to_activate
 5305    }
 5306
 5307    fn shared_screen_for_peer(
 5308        &self,
 5309        peer_id: PeerId,
 5310        pane: &Entity<Pane>,
 5311        window: &mut Window,
 5312        cx: &mut App,
 5313    ) -> Option<Entity<SharedScreen>> {
 5314        let call = self.active_call()?;
 5315        let room = call.read(cx).room()?.clone();
 5316        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5317        let track = participant.video_tracks.values().next()?.clone();
 5318        let user = participant.user.clone();
 5319
 5320        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5321            if item.read(cx).peer_id == peer_id {
 5322                return Some(item);
 5323            }
 5324        }
 5325
 5326        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5327    }
 5328
 5329    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5330        if window.is_window_active() {
 5331            self.update_active_view_for_followers(window, cx);
 5332
 5333            if let Some(database_id) = self.database_id {
 5334                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5335                    .detach();
 5336            }
 5337        } else {
 5338            for pane in &self.panes {
 5339                pane.update(cx, |pane, cx| {
 5340                    if let Some(item) = pane.active_item() {
 5341                        item.workspace_deactivated(window, cx);
 5342                    }
 5343                    for item in pane.items() {
 5344                        if matches!(
 5345                            item.workspace_settings(cx).autosave,
 5346                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5347                        ) {
 5348                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5349                                .detach_and_log_err(cx);
 5350                        }
 5351                    }
 5352                });
 5353            }
 5354        }
 5355    }
 5356
 5357    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5358        self.active_call.as_ref().map(|(call, _)| call)
 5359    }
 5360
 5361    fn on_active_call_event(
 5362        &mut self,
 5363        _: &Entity<ActiveCall>,
 5364        event: &call::room::Event,
 5365        window: &mut Window,
 5366        cx: &mut Context<Self>,
 5367    ) {
 5368        match event {
 5369            call::room::Event::ParticipantLocationChanged { participant_id }
 5370            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5371                self.leader_updated(participant_id, window, cx);
 5372            }
 5373            _ => {}
 5374        }
 5375    }
 5376
 5377    pub fn database_id(&self) -> Option<WorkspaceId> {
 5378        self.database_id
 5379    }
 5380
 5381    pub fn session_id(&self) -> Option<String> {
 5382        self.session_id.clone()
 5383    }
 5384
 5385    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5386        let project = self.project().read(cx);
 5387        project
 5388            .visible_worktrees(cx)
 5389            .map(|worktree| worktree.read(cx).abs_path())
 5390            .collect::<Vec<_>>()
 5391    }
 5392
 5393    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5394        match member {
 5395            Member::Axis(PaneAxis { members, .. }) => {
 5396                for child in members.iter() {
 5397                    self.remove_panes(child.clone(), window, cx)
 5398                }
 5399            }
 5400            Member::Pane(pane) => {
 5401                self.force_remove_pane(&pane, &None, window, cx);
 5402            }
 5403        }
 5404    }
 5405
 5406    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5407        self.session_id.take();
 5408        self.serialize_workspace_internal(window, cx)
 5409    }
 5410
 5411    fn force_remove_pane(
 5412        &mut self,
 5413        pane: &Entity<Pane>,
 5414        focus_on: &Option<Entity<Pane>>,
 5415        window: &mut Window,
 5416        cx: &mut Context<Workspace>,
 5417    ) {
 5418        self.panes.retain(|p| p != pane);
 5419        if let Some(focus_on) = focus_on {
 5420            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5421        } else if self.active_pane() == pane {
 5422            self.panes
 5423                .last()
 5424                .unwrap()
 5425                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5426        }
 5427        if self.last_active_center_pane == Some(pane.downgrade()) {
 5428            self.last_active_center_pane = None;
 5429        }
 5430        cx.notify();
 5431    }
 5432
 5433    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5434        if self._schedule_serialize_workspace.is_none() {
 5435            self._schedule_serialize_workspace =
 5436                Some(cx.spawn_in(window, async move |this, cx| {
 5437                    cx.background_executor()
 5438                        .timer(SERIALIZATION_THROTTLE_TIME)
 5439                        .await;
 5440                    this.update_in(cx, |this, window, cx| {
 5441                        this.serialize_workspace_internal(window, cx).detach();
 5442                        this._schedule_serialize_workspace.take();
 5443                    })
 5444                    .log_err();
 5445                }));
 5446        }
 5447    }
 5448
 5449    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5450        let Some(database_id) = self.database_id() else {
 5451            return Task::ready(());
 5452        };
 5453
 5454        fn serialize_pane_handle(
 5455            pane_handle: &Entity<Pane>,
 5456            window: &mut Window,
 5457            cx: &mut App,
 5458        ) -> SerializedPane {
 5459            let (items, active, pinned_count) = {
 5460                let pane = pane_handle.read(cx);
 5461                let active_item_id = pane.active_item().map(|item| item.item_id());
 5462                (
 5463                    pane.items()
 5464                        .filter_map(|handle| {
 5465                            let handle = handle.to_serializable_item_handle(cx)?;
 5466
 5467                            Some(SerializedItem {
 5468                                kind: Arc::from(handle.serialized_item_kind()),
 5469                                item_id: handle.item_id().as_u64(),
 5470                                active: Some(handle.item_id()) == active_item_id,
 5471                                preview: pane.is_active_preview_item(handle.item_id()),
 5472                            })
 5473                        })
 5474                        .collect::<Vec<_>>(),
 5475                    pane.has_focus(window, cx),
 5476                    pane.pinned_count(),
 5477                )
 5478            };
 5479
 5480            SerializedPane::new(items, active, pinned_count)
 5481        }
 5482
 5483        fn build_serialized_pane_group(
 5484            pane_group: &Member,
 5485            window: &mut Window,
 5486            cx: &mut App,
 5487        ) -> SerializedPaneGroup {
 5488            match pane_group {
 5489                Member::Axis(PaneAxis {
 5490                    axis,
 5491                    members,
 5492                    flexes,
 5493                    bounding_boxes: _,
 5494                }) => SerializedPaneGroup::Group {
 5495                    axis: SerializedAxis(*axis),
 5496                    children: members
 5497                        .iter()
 5498                        .map(|member| build_serialized_pane_group(member, window, cx))
 5499                        .collect::<Vec<_>>(),
 5500                    flexes: Some(flexes.lock().clone()),
 5501                },
 5502                Member::Pane(pane_handle) => {
 5503                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5504                }
 5505            }
 5506        }
 5507
 5508        fn build_serialized_docks(
 5509            this: &Workspace,
 5510            window: &mut Window,
 5511            cx: &mut App,
 5512        ) -> DockStructure {
 5513            let left_dock = this.left_dock.read(cx);
 5514            let left_visible = left_dock.is_open();
 5515            let left_active_panel = left_dock
 5516                .active_panel()
 5517                .map(|panel| panel.persistent_name().to_string());
 5518            let left_dock_zoom = left_dock
 5519                .active_panel()
 5520                .map(|panel| panel.is_zoomed(window, cx))
 5521                .unwrap_or(false);
 5522
 5523            let right_dock = this.right_dock.read(cx);
 5524            let right_visible = right_dock.is_open();
 5525            let right_active_panel = right_dock
 5526                .active_panel()
 5527                .map(|panel| panel.persistent_name().to_string());
 5528            let right_dock_zoom = right_dock
 5529                .active_panel()
 5530                .map(|panel| panel.is_zoomed(window, cx))
 5531                .unwrap_or(false);
 5532
 5533            let bottom_dock = this.bottom_dock.read(cx);
 5534            let bottom_visible = bottom_dock.is_open();
 5535            let bottom_active_panel = bottom_dock
 5536                .active_panel()
 5537                .map(|panel| panel.persistent_name().to_string());
 5538            let bottom_dock_zoom = bottom_dock
 5539                .active_panel()
 5540                .map(|panel| panel.is_zoomed(window, cx))
 5541                .unwrap_or(false);
 5542
 5543            DockStructure {
 5544                left: DockData {
 5545                    visible: left_visible,
 5546                    active_panel: left_active_panel,
 5547                    zoom: left_dock_zoom,
 5548                },
 5549                right: DockData {
 5550                    visible: right_visible,
 5551                    active_panel: right_active_panel,
 5552                    zoom: right_dock_zoom,
 5553                },
 5554                bottom: DockData {
 5555                    visible: bottom_visible,
 5556                    active_panel: bottom_active_panel,
 5557                    zoom: bottom_dock_zoom,
 5558                },
 5559            }
 5560        }
 5561
 5562        match self.serialize_workspace_location(cx) {
 5563            WorkspaceLocation::Location(location, paths) => {
 5564                let breakpoints = self.project.update(cx, |project, cx| {
 5565                    project
 5566                        .breakpoint_store()
 5567                        .read(cx)
 5568                        .all_source_breakpoints(cx)
 5569                });
 5570                let user_toolchains = self
 5571                    .project
 5572                    .read(cx)
 5573                    .user_toolchains(cx)
 5574                    .unwrap_or_default();
 5575
 5576                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5577                let docks = build_serialized_docks(self, window, cx);
 5578                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5579
 5580                let serialized_workspace = SerializedWorkspace {
 5581                    id: database_id,
 5582                    location,
 5583                    paths,
 5584                    center_group,
 5585                    window_bounds,
 5586                    display: Default::default(),
 5587                    docks,
 5588                    centered_layout: self.centered_layout,
 5589                    session_id: self.session_id.clone(),
 5590                    breakpoints,
 5591                    window_id: Some(window.window_handle().window_id().as_u64()),
 5592                    user_toolchains,
 5593                };
 5594
 5595                window.spawn(cx, async move |_| {
 5596                    persistence::DB.save_workspace(serialized_workspace).await;
 5597                })
 5598            }
 5599            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5600                persistence::DB
 5601                    .set_session_id(database_id, None)
 5602                    .await
 5603                    .log_err();
 5604            }),
 5605            WorkspaceLocation::None => Task::ready(()),
 5606        }
 5607    }
 5608
 5609    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5610        let paths = PathList::new(&self.root_paths(cx));
 5611        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5612            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5613        } else if self.project.read(cx).is_local() {
 5614            if !paths.is_empty() {
 5615                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5616            } else {
 5617                WorkspaceLocation::DetachFromSession
 5618            }
 5619        } else {
 5620            WorkspaceLocation::None
 5621        }
 5622    }
 5623
 5624    fn update_history(&self, cx: &mut App) {
 5625        let Some(id) = self.database_id() else {
 5626            return;
 5627        };
 5628        if !self.project.read(cx).is_local() {
 5629            return;
 5630        }
 5631        if let Some(manager) = HistoryManager::global(cx) {
 5632            let paths = PathList::new(&self.root_paths(cx));
 5633            manager.update(cx, |this, cx| {
 5634                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5635            });
 5636        }
 5637    }
 5638
 5639    async fn serialize_items(
 5640        this: &WeakEntity<Self>,
 5641        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5642        cx: &mut AsyncWindowContext,
 5643    ) -> Result<()> {
 5644        const CHUNK_SIZE: usize = 200;
 5645
 5646        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5647
 5648        while let Some(items_received) = serializable_items.next().await {
 5649            let unique_items =
 5650                items_received
 5651                    .into_iter()
 5652                    .fold(HashMap::default(), |mut acc, item| {
 5653                        acc.entry(item.item_id()).or_insert(item);
 5654                        acc
 5655                    });
 5656
 5657            // We use into_iter() here so that the references to the items are moved into
 5658            // the tasks and not kept alive while we're sleeping.
 5659            for (_, item) in unique_items.into_iter() {
 5660                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5661                    item.serialize(workspace, false, window, cx)
 5662                }) {
 5663                    cx.background_spawn(async move { task.await.log_err() })
 5664                        .detach();
 5665                }
 5666            }
 5667
 5668            cx.background_executor()
 5669                .timer(SERIALIZATION_THROTTLE_TIME)
 5670                .await;
 5671        }
 5672
 5673        Ok(())
 5674    }
 5675
 5676    pub(crate) fn enqueue_item_serialization(
 5677        &mut self,
 5678        item: Box<dyn SerializableItemHandle>,
 5679    ) -> Result<()> {
 5680        self.serializable_items_tx
 5681            .unbounded_send(item)
 5682            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5683    }
 5684
 5685    pub(crate) fn load_workspace(
 5686        serialized_workspace: SerializedWorkspace,
 5687        paths_to_open: Vec<Option<ProjectPath>>,
 5688        window: &mut Window,
 5689        cx: &mut Context<Workspace>,
 5690    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5691        cx.spawn_in(window, async move |workspace, cx| {
 5692            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5693
 5694            let mut center_group = None;
 5695            let mut center_items = None;
 5696
 5697            // Traverse the splits tree and add to things
 5698            if let Some((group, active_pane, items)) = serialized_workspace
 5699                .center_group
 5700                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5701                .await
 5702            {
 5703                center_items = Some(items);
 5704                center_group = Some((group, active_pane))
 5705            }
 5706
 5707            let mut items_by_project_path = HashMap::default();
 5708            let mut item_ids_by_kind = HashMap::default();
 5709            let mut all_deserialized_items = Vec::default();
 5710            cx.update(|_, cx| {
 5711                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5712                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5713                        item_ids_by_kind
 5714                            .entry(serializable_item_handle.serialized_item_kind())
 5715                            .or_insert(Vec::new())
 5716                            .push(item.item_id().as_u64() as ItemId);
 5717                    }
 5718
 5719                    if let Some(project_path) = item.project_path(cx) {
 5720                        items_by_project_path.insert(project_path, item.clone());
 5721                    }
 5722                    all_deserialized_items.push(item);
 5723                }
 5724            })?;
 5725
 5726            let opened_items = paths_to_open
 5727                .into_iter()
 5728                .map(|path_to_open| {
 5729                    path_to_open
 5730                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5731                })
 5732                .collect::<Vec<_>>();
 5733
 5734            // Remove old panes from workspace panes list
 5735            workspace.update_in(cx, |workspace, window, cx| {
 5736                if let Some((center_group, active_pane)) = center_group {
 5737                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5738
 5739                    // Swap workspace center group
 5740                    workspace.center = PaneGroup::with_root(center_group);
 5741                    workspace.center.set_is_center(true);
 5742                    workspace.center.mark_positions(cx);
 5743
 5744                    if let Some(active_pane) = active_pane {
 5745                        workspace.set_active_pane(&active_pane, window, cx);
 5746                        cx.focus_self(window);
 5747                    } else {
 5748                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5749                    }
 5750                }
 5751
 5752                let docks = serialized_workspace.docks;
 5753
 5754                for (dock, serialized_dock) in [
 5755                    (&mut workspace.right_dock, docks.right),
 5756                    (&mut workspace.left_dock, docks.left),
 5757                    (&mut workspace.bottom_dock, docks.bottom),
 5758                ]
 5759                .iter_mut()
 5760                {
 5761                    dock.update(cx, |dock, cx| {
 5762                        dock.serialized_dock = Some(serialized_dock.clone());
 5763                        dock.restore_state(window, cx);
 5764                    });
 5765                }
 5766
 5767                cx.notify();
 5768            })?;
 5769
 5770            let _ = project
 5771                .update(cx, |project, cx| {
 5772                    project
 5773                        .breakpoint_store()
 5774                        .update(cx, |breakpoint_store, cx| {
 5775                            breakpoint_store
 5776                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5777                        })
 5778                })?
 5779                .await;
 5780
 5781            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5782            // after loading the items, we might have different items and in order to avoid
 5783            // the database filling up, we delete items that haven't been loaded now.
 5784            //
 5785            // The items that have been loaded, have been saved after they've been added to the workspace.
 5786            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5787                item_ids_by_kind
 5788                    .into_iter()
 5789                    .map(|(item_kind, loaded_items)| {
 5790                        SerializableItemRegistry::cleanup(
 5791                            item_kind,
 5792                            serialized_workspace.id,
 5793                            loaded_items,
 5794                            window,
 5795                            cx,
 5796                        )
 5797                        .log_err()
 5798                    })
 5799                    .collect::<Vec<_>>()
 5800            })?;
 5801
 5802            futures::future::join_all(clean_up_tasks).await;
 5803
 5804            workspace
 5805                .update_in(cx, |workspace, window, cx| {
 5806                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5807                    workspace.serialize_workspace_internal(window, cx).detach();
 5808
 5809                    // Ensure that we mark the window as edited if we did load dirty items
 5810                    workspace.update_window_edited(window, cx);
 5811                })
 5812                .ok();
 5813
 5814            Ok(opened_items)
 5815        })
 5816    }
 5817
 5818    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5819        self.add_workspace_actions_listeners(div, window, cx)
 5820            .on_action(cx.listener(
 5821                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5822                    for action in &action_sequence.0 {
 5823                        window.dispatch_action(action.boxed_clone(), cx);
 5824                    }
 5825                },
 5826            ))
 5827            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5828            .on_action(cx.listener(Self::close_all_items_and_panes))
 5829            .on_action(cx.listener(Self::save_all))
 5830            .on_action(cx.listener(Self::send_keystrokes))
 5831            .on_action(cx.listener(Self::add_folder_to_project))
 5832            .on_action(cx.listener(Self::follow_next_collaborator))
 5833            .on_action(cx.listener(Self::close_window))
 5834            .on_action(cx.listener(Self::activate_pane_at_index))
 5835            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5836            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5837            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5838            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5839                let pane = workspace.active_pane().clone();
 5840                workspace.unfollow_in_pane(&pane, window, cx);
 5841            }))
 5842            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5843                workspace
 5844                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5845                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5846            }))
 5847            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5848                workspace
 5849                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5850                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5851            }))
 5852            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5853                workspace
 5854                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5855                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5856            }))
 5857            .on_action(
 5858                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5859                    workspace.activate_previous_pane(window, cx)
 5860                }),
 5861            )
 5862            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5863                workspace.activate_next_pane(window, cx)
 5864            }))
 5865            .on_action(
 5866                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5867                    workspace.activate_next_window(cx)
 5868                }),
 5869            )
 5870            .on_action(
 5871                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5872                    workspace.activate_previous_window(cx)
 5873                }),
 5874            )
 5875            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5876                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5877            }))
 5878            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5879                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5880            }))
 5881            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5882                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5883            }))
 5884            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5885                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5886            }))
 5887            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5888                workspace.activate_next_pane(window, cx)
 5889            }))
 5890            .on_action(cx.listener(
 5891                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5892                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5893                },
 5894            ))
 5895            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5896                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5897            }))
 5898            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5899                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5900            }))
 5901            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5902                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5903            }))
 5904            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5905                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5906            }))
 5907            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5908                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5909                    SplitDirection::Down,
 5910                    SplitDirection::Up,
 5911                    SplitDirection::Right,
 5912                    SplitDirection::Left,
 5913                ];
 5914                for dir in DIRECTION_PRIORITY {
 5915                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 5916                        workspace.swap_pane_in_direction(dir, cx);
 5917                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 5918                        break;
 5919                    }
 5920                }
 5921            }))
 5922            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5923                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5924            }))
 5925            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5926                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5927            }))
 5928            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5929                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5930            }))
 5931            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5932                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5933            }))
 5934            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5935                this.toggle_dock(DockPosition::Left, window, cx);
 5936            }))
 5937            .on_action(cx.listener(
 5938                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5939                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5940                },
 5941            ))
 5942            .on_action(cx.listener(
 5943                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5944                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5945                },
 5946            ))
 5947            .on_action(cx.listener(
 5948                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5949                    if !workspace.close_active_dock(window, cx) {
 5950                        cx.propagate();
 5951                    }
 5952                },
 5953            ))
 5954            .on_action(
 5955                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5956                    workspace.close_all_docks(window, cx);
 5957                }),
 5958            )
 5959            .on_action(cx.listener(Self::toggle_all_docks))
 5960            .on_action(cx.listener(
 5961                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5962                    workspace.clear_all_notifications(cx);
 5963                },
 5964            ))
 5965            .on_action(cx.listener(
 5966                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 5967                    workspace.clear_navigation_history(window, cx);
 5968                },
 5969            ))
 5970            .on_action(cx.listener(
 5971                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 5972                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 5973                        workspace.suppress_notification(&notification_id, cx);
 5974                    }
 5975                },
 5976            ))
 5977            .on_action(cx.listener(
 5978                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 5979                    workspace.show_worktree_trust_security_modal(true, window, cx);
 5980                },
 5981            ))
 5982            .on_action(
 5983                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 5984                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 5985                        let clear_task = trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 5986                            trusted_worktrees.clear_trusted_paths(cx)
 5987                        });
 5988                        cx.spawn(async move |_, cx| {
 5989                            clear_task.await;
 5990                            cx.update(|cx| reload(cx)).ok();
 5991                        })
 5992                        .detach();
 5993                    }
 5994                }),
 5995            )
 5996            .on_action(cx.listener(
 5997                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 5998                    workspace.reopen_closed_item(window, cx).detach();
 5999                },
 6000            ))
 6001            .on_action(cx.listener(
 6002                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6003                    for dock in workspace.all_docks() {
 6004                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6005                            let Some(panel) = dock.read(cx).active_panel() else {
 6006                                return;
 6007                            };
 6008
 6009                            // Set to `None`, then the size will fall back to the default.
 6010                            panel.clone().set_size(None, window, cx);
 6011
 6012                            return;
 6013                        }
 6014                    }
 6015                },
 6016            ))
 6017            .on_action(cx.listener(
 6018                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6019                    for dock in workspace.all_docks() {
 6020                        if let Some(panel) = dock.read(cx).visible_panel() {
 6021                            // Set to `None`, then the size will fall back to the default.
 6022                            panel.clone().set_size(None, window, cx);
 6023                        }
 6024                    }
 6025                },
 6026            ))
 6027            .on_action(cx.listener(
 6028                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6029                    adjust_active_dock_size_by_px(
 6030                        px_with_ui_font_fallback(act.px, cx),
 6031                        workspace,
 6032                        window,
 6033                        cx,
 6034                    );
 6035                },
 6036            ))
 6037            .on_action(cx.listener(
 6038                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6039                    adjust_active_dock_size_by_px(
 6040                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6041                        workspace,
 6042                        window,
 6043                        cx,
 6044                    );
 6045                },
 6046            ))
 6047            .on_action(cx.listener(
 6048                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6049                    adjust_open_docks_size_by_px(
 6050                        px_with_ui_font_fallback(act.px, cx),
 6051                        workspace,
 6052                        window,
 6053                        cx,
 6054                    );
 6055                },
 6056            ))
 6057            .on_action(cx.listener(
 6058                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6059                    adjust_open_docks_size_by_px(
 6060                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6061                        workspace,
 6062                        window,
 6063                        cx,
 6064                    );
 6065                },
 6066            ))
 6067            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6068            .on_action(cx.listener(
 6069                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6070                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6071                        let dock = active_dock.read(cx);
 6072                        if let Some(active_panel) = dock.active_panel() {
 6073                            if active_panel.pane(cx).is_none() {
 6074                                let mut recent_pane: Option<Entity<Pane>> = None;
 6075                                let mut recent_timestamp = 0;
 6076                                for pane_handle in workspace.panes() {
 6077                                    let pane = pane_handle.read(cx);
 6078                                    for entry in pane.activation_history() {
 6079                                        if entry.timestamp > recent_timestamp {
 6080                                            recent_timestamp = entry.timestamp;
 6081                                            recent_pane = Some(pane_handle.clone());
 6082                                        }
 6083                                    }
 6084                                }
 6085
 6086                                if let Some(pane) = recent_pane {
 6087                                    pane.update(cx, |pane, cx| {
 6088                                        let current_index = pane.active_item_index();
 6089                                        let items_len = pane.items_len();
 6090                                        if items_len > 0 {
 6091                                            let next_index = if current_index + 1 < items_len {
 6092                                                current_index + 1
 6093                                            } else {
 6094                                                0
 6095                                            };
 6096                                            pane.activate_item(
 6097                                                next_index, false, false, window, cx,
 6098                                            );
 6099                                        }
 6100                                    });
 6101                                    return;
 6102                                }
 6103                            }
 6104                        }
 6105                    }
 6106                    cx.propagate();
 6107                },
 6108            ))
 6109            .on_action(cx.listener(
 6110                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6111                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6112                        let dock = active_dock.read(cx);
 6113                        if let Some(active_panel) = dock.active_panel() {
 6114                            if active_panel.pane(cx).is_none() {
 6115                                let mut recent_pane: Option<Entity<Pane>> = None;
 6116                                let mut recent_timestamp = 0;
 6117                                for pane_handle in workspace.panes() {
 6118                                    let pane = pane_handle.read(cx);
 6119                                    for entry in pane.activation_history() {
 6120                                        if entry.timestamp > recent_timestamp {
 6121                                            recent_timestamp = entry.timestamp;
 6122                                            recent_pane = Some(pane_handle.clone());
 6123                                        }
 6124                                    }
 6125                                }
 6126
 6127                                if let Some(pane) = recent_pane {
 6128                                    pane.update(cx, |pane, cx| {
 6129                                        let current_index = pane.active_item_index();
 6130                                        let items_len = pane.items_len();
 6131                                        if items_len > 0 {
 6132                                            let prev_index = if current_index > 0 {
 6133                                                current_index - 1
 6134                                            } else {
 6135                                                items_len.saturating_sub(1)
 6136                                            };
 6137                                            pane.activate_item(
 6138                                                prev_index, false, false, window, cx,
 6139                                            );
 6140                                        }
 6141                                    });
 6142                                    return;
 6143                                }
 6144                            }
 6145                        }
 6146                    }
 6147                    cx.propagate();
 6148                },
 6149            ))
 6150            .on_action(cx.listener(Workspace::cancel))
 6151    }
 6152
 6153    #[cfg(any(test, feature = "test-support"))]
 6154    pub fn set_random_database_id(&mut self) {
 6155        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6156    }
 6157
 6158    #[cfg(any(test, feature = "test-support"))]
 6159    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6160        use node_runtime::NodeRuntime;
 6161        use session::Session;
 6162
 6163        let client = project.read(cx).client();
 6164        let user_store = project.read(cx).user_store();
 6165        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6166        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6167        window.activate_window();
 6168        let app_state = Arc::new(AppState {
 6169            languages: project.read(cx).languages().clone(),
 6170            workspace_store,
 6171            client,
 6172            user_store,
 6173            fs: project.read(cx).fs().clone(),
 6174            build_window_options: |_, _| Default::default(),
 6175            node_runtime: NodeRuntime::unavailable(),
 6176            session,
 6177        });
 6178        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6179        workspace
 6180            .active_pane
 6181            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 6182        workspace
 6183    }
 6184
 6185    pub fn register_action<A: Action>(
 6186        &mut self,
 6187        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6188    ) -> &mut Self {
 6189        let callback = Arc::new(callback);
 6190
 6191        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6192            let callback = callback.clone();
 6193            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6194                (callback)(workspace, event, window, cx)
 6195            }))
 6196        }));
 6197        self
 6198    }
 6199    pub fn register_action_renderer(
 6200        &mut self,
 6201        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6202    ) -> &mut Self {
 6203        self.workspace_actions.push(Box::new(callback));
 6204        self
 6205    }
 6206
 6207    fn add_workspace_actions_listeners(
 6208        &self,
 6209        mut div: Div,
 6210        window: &mut Window,
 6211        cx: &mut Context<Self>,
 6212    ) -> Div {
 6213        for action in self.workspace_actions.iter() {
 6214            div = (action)(div, self, window, cx)
 6215        }
 6216        div
 6217    }
 6218
 6219    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6220        self.modal_layer.read(cx).has_active_modal()
 6221    }
 6222
 6223    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6224        self.modal_layer.read(cx).active_modal()
 6225    }
 6226
 6227    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6228    where
 6229        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6230    {
 6231        self.modal_layer.update(cx, |modal_layer, cx| {
 6232            modal_layer.toggle_modal(window, cx, build)
 6233        })
 6234    }
 6235
 6236    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6237        self.modal_layer
 6238            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6239    }
 6240
 6241    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6242        self.toast_layer
 6243            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6244    }
 6245
 6246    pub fn toggle_centered_layout(
 6247        &mut self,
 6248        _: &ToggleCenteredLayout,
 6249        _: &mut Window,
 6250        cx: &mut Context<Self>,
 6251    ) {
 6252        self.centered_layout = !self.centered_layout;
 6253        if let Some(database_id) = self.database_id() {
 6254            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6255                .detach_and_log_err(cx);
 6256        }
 6257        cx.notify();
 6258    }
 6259
 6260    fn adjust_padding(padding: Option<f32>) -> f32 {
 6261        padding
 6262            .unwrap_or(CenteredPaddingSettings::default().0)
 6263            .clamp(
 6264                CenteredPaddingSettings::MIN_PADDING,
 6265                CenteredPaddingSettings::MAX_PADDING,
 6266            )
 6267    }
 6268
 6269    fn render_dock(
 6270        &self,
 6271        position: DockPosition,
 6272        dock: &Entity<Dock>,
 6273        window: &mut Window,
 6274        cx: &mut App,
 6275    ) -> Option<Div> {
 6276        if self.zoomed_position == Some(position) {
 6277            return None;
 6278        }
 6279
 6280        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6281            let pane = panel.pane(cx)?;
 6282            let follower_states = &self.follower_states;
 6283            leader_border_for_pane(follower_states, &pane, window, cx)
 6284        });
 6285
 6286        Some(
 6287            div()
 6288                .flex()
 6289                .flex_none()
 6290                .overflow_hidden()
 6291                .child(dock.clone())
 6292                .children(leader_border),
 6293        )
 6294    }
 6295
 6296    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6297        window.root().flatten()
 6298    }
 6299
 6300    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6301        self.zoomed.as_ref()
 6302    }
 6303
 6304    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6305        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6306            return;
 6307        };
 6308        let windows = cx.windows();
 6309        let next_window =
 6310            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6311                || {
 6312                    windows
 6313                        .iter()
 6314                        .cycle()
 6315                        .skip_while(|window| window.window_id() != current_window_id)
 6316                        .nth(1)
 6317                },
 6318            );
 6319
 6320        if let Some(window) = next_window {
 6321            window
 6322                .update(cx, |_, window, _| window.activate_window())
 6323                .ok();
 6324        }
 6325    }
 6326
 6327    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6328        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6329            return;
 6330        };
 6331        let windows = cx.windows();
 6332        let prev_window =
 6333            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6334                || {
 6335                    windows
 6336                        .iter()
 6337                        .rev()
 6338                        .cycle()
 6339                        .skip_while(|window| window.window_id() != current_window_id)
 6340                        .nth(1)
 6341                },
 6342            );
 6343
 6344        if let Some(window) = prev_window {
 6345            window
 6346                .update(cx, |_, window, _| window.activate_window())
 6347                .ok();
 6348        }
 6349    }
 6350
 6351    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6352        if cx.stop_active_drag(window) {
 6353        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6354            dismiss_app_notification(&notification_id, cx);
 6355        } else {
 6356            cx.propagate();
 6357        }
 6358    }
 6359
 6360    fn adjust_dock_size_by_px(
 6361        &mut self,
 6362        panel_size: Pixels,
 6363        dock_pos: DockPosition,
 6364        px: Pixels,
 6365        window: &mut Window,
 6366        cx: &mut Context<Self>,
 6367    ) {
 6368        match dock_pos {
 6369            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6370            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6371            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6372        }
 6373    }
 6374
 6375    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6376        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6377
 6378        self.left_dock.update(cx, |left_dock, cx| {
 6379            if WorkspaceSettings::get_global(cx)
 6380                .resize_all_panels_in_dock
 6381                .contains(&DockPosition::Left)
 6382            {
 6383                left_dock.resize_all_panels(Some(size), window, cx);
 6384            } else {
 6385                left_dock.resize_active_panel(Some(size), window, cx);
 6386            }
 6387        });
 6388        self.clamp_utility_pane_widths(window, cx);
 6389    }
 6390
 6391    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6392        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6393        self.left_dock.read_with(cx, |left_dock, cx| {
 6394            let left_dock_size = left_dock
 6395                .active_panel_size(window, cx)
 6396                .unwrap_or(Pixels::ZERO);
 6397            if left_dock_size + size > self.bounds.right() {
 6398                size = self.bounds.right() - left_dock_size
 6399            }
 6400        });
 6401        self.right_dock.update(cx, |right_dock, cx| {
 6402            if WorkspaceSettings::get_global(cx)
 6403                .resize_all_panels_in_dock
 6404                .contains(&DockPosition::Right)
 6405            {
 6406                right_dock.resize_all_panels(Some(size), window, cx);
 6407            } else {
 6408                right_dock.resize_active_panel(Some(size), window, cx);
 6409            }
 6410        });
 6411        self.clamp_utility_pane_widths(window, cx);
 6412    }
 6413
 6414    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6415        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6416        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6417            if WorkspaceSettings::get_global(cx)
 6418                .resize_all_panels_in_dock
 6419                .contains(&DockPosition::Bottom)
 6420            {
 6421                bottom_dock.resize_all_panels(Some(size), window, cx);
 6422            } else {
 6423                bottom_dock.resize_active_panel(Some(size), window, cx);
 6424            }
 6425        });
 6426        self.clamp_utility_pane_widths(window, cx);
 6427    }
 6428
 6429    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6430        let left_dock_width = self
 6431            .left_dock
 6432            .read(cx)
 6433            .active_panel_size(window, cx)
 6434            .unwrap_or(px(0.0));
 6435        let right_dock_width = self
 6436            .right_dock
 6437            .read(cx)
 6438            .active_panel_size(window, cx)
 6439            .unwrap_or(px(0.0));
 6440        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6441        center_pane_width - px(10.0)
 6442    }
 6443
 6444    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6445        let max_width = self.max_utility_pane_width(window, cx);
 6446
 6447        // Clamp left slot utility pane if it exists
 6448        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6449            let current_width = handle.width(cx);
 6450            if current_width > max_width {
 6451                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6452            }
 6453        }
 6454
 6455        // Clamp right slot utility pane if it exists
 6456        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6457            let current_width = handle.width(cx);
 6458            if current_width > max_width {
 6459                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6460            }
 6461        }
 6462    }
 6463
 6464    fn toggle_edit_predictions_all_files(
 6465        &mut self,
 6466        _: &ToggleEditPrediction,
 6467        _window: &mut Window,
 6468        cx: &mut Context<Self>,
 6469    ) {
 6470        let fs = self.project().read(cx).fs().clone();
 6471        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6472        update_settings_file(fs, cx, move |file, _| {
 6473            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6474        });
 6475    }
 6476
 6477    pub fn show_worktree_trust_security_modal(
 6478        &mut self,
 6479        toggle: bool,
 6480        window: &mut Window,
 6481        cx: &mut Context<Self>,
 6482    ) {
 6483        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6484            if toggle {
 6485                security_modal.update(cx, |security_modal, cx| {
 6486                    security_modal.dismiss(cx);
 6487                })
 6488            } else {
 6489                security_modal.update(cx, |security_modal, cx| {
 6490                    security_modal.refresh_restricted_paths(cx);
 6491                });
 6492            }
 6493        } else {
 6494            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6495                .map(|trusted_worktrees| {
 6496                    trusted_worktrees
 6497                        .read(cx)
 6498                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6499                })
 6500                .unwrap_or(false);
 6501            if has_restricted_worktrees {
 6502                let project = self.project().read(cx);
 6503                let remote_host = project.remote_connection_options(cx);
 6504                let worktree_store = project.worktree_store().downgrade();
 6505                self.toggle_modal(window, cx, |_, cx| {
 6506                    SecurityModal::new(worktree_store, remote_host, cx)
 6507                });
 6508            }
 6509        }
 6510    }
 6511}
 6512
 6513fn leader_border_for_pane(
 6514    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6515    pane: &Entity<Pane>,
 6516    _: &Window,
 6517    cx: &App,
 6518) -> Option<Div> {
 6519    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6520        if state.pane() == pane {
 6521            Some((*leader_id, state))
 6522        } else {
 6523            None
 6524        }
 6525    })?;
 6526
 6527    let mut leader_color = match leader_id {
 6528        CollaboratorId::PeerId(leader_peer_id) => {
 6529            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6530            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6531
 6532            cx.theme()
 6533                .players()
 6534                .color_for_participant(leader.participant_index.0)
 6535                .cursor
 6536        }
 6537        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6538    };
 6539    leader_color.fade_out(0.3);
 6540    Some(
 6541        div()
 6542            .absolute()
 6543            .size_full()
 6544            .left_0()
 6545            .top_0()
 6546            .border_2()
 6547            .border_color(leader_color),
 6548    )
 6549}
 6550
 6551fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6552    ZED_WINDOW_POSITION
 6553        .zip(*ZED_WINDOW_SIZE)
 6554        .map(|(position, size)| Bounds {
 6555            origin: position,
 6556            size,
 6557        })
 6558}
 6559
 6560fn open_items(
 6561    serialized_workspace: Option<SerializedWorkspace>,
 6562    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6563    window: &mut Window,
 6564    cx: &mut Context<Workspace>,
 6565) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6566    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6567        Workspace::load_workspace(
 6568            serialized_workspace,
 6569            project_paths_to_open
 6570                .iter()
 6571                .map(|(_, project_path)| project_path)
 6572                .cloned()
 6573                .collect(),
 6574            window,
 6575            cx,
 6576        )
 6577    });
 6578
 6579    cx.spawn_in(window, async move |workspace, cx| {
 6580        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6581
 6582        if let Some(restored_items) = restored_items {
 6583            let restored_items = restored_items.await?;
 6584
 6585            let restored_project_paths = restored_items
 6586                .iter()
 6587                .filter_map(|item| {
 6588                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6589                        .ok()
 6590                        .flatten()
 6591                })
 6592                .collect::<HashSet<_>>();
 6593
 6594            for restored_item in restored_items {
 6595                opened_items.push(restored_item.map(Ok));
 6596            }
 6597
 6598            project_paths_to_open
 6599                .iter_mut()
 6600                .for_each(|(_, project_path)| {
 6601                    if let Some(project_path_to_open) = project_path
 6602                        && restored_project_paths.contains(project_path_to_open)
 6603                    {
 6604                        *project_path = None;
 6605                    }
 6606                });
 6607        } else {
 6608            for _ in 0..project_paths_to_open.len() {
 6609                opened_items.push(None);
 6610            }
 6611        }
 6612        assert!(opened_items.len() == project_paths_to_open.len());
 6613
 6614        let tasks =
 6615            project_paths_to_open
 6616                .into_iter()
 6617                .enumerate()
 6618                .map(|(ix, (abs_path, project_path))| {
 6619                    let workspace = workspace.clone();
 6620                    cx.spawn(async move |cx| {
 6621                        let file_project_path = project_path?;
 6622                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6623                            workspace.project().update(cx, |project, cx| {
 6624                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6625                            })
 6626                        });
 6627
 6628                        // We only want to open file paths here. If one of the items
 6629                        // here is a directory, it was already opened further above
 6630                        // with a `find_or_create_worktree`.
 6631                        if let Ok(task) = abs_path_task
 6632                            && task.await.is_none_or(|p| p.is_file())
 6633                        {
 6634                            return Some((
 6635                                ix,
 6636                                workspace
 6637                                    .update_in(cx, |workspace, window, cx| {
 6638                                        workspace.open_path(
 6639                                            file_project_path,
 6640                                            None,
 6641                                            true,
 6642                                            window,
 6643                                            cx,
 6644                                        )
 6645                                    })
 6646                                    .log_err()?
 6647                                    .await,
 6648                            ));
 6649                        }
 6650                        None
 6651                    })
 6652                });
 6653
 6654        let tasks = tasks.collect::<Vec<_>>();
 6655
 6656        let tasks = futures::future::join_all(tasks);
 6657        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6658            opened_items[ix] = Some(path_open_result);
 6659        }
 6660
 6661        Ok(opened_items)
 6662    })
 6663}
 6664
 6665enum ActivateInDirectionTarget {
 6666    Pane(Entity<Pane>),
 6667    Dock(Entity<Dock>),
 6668}
 6669
 6670fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6671    workspace
 6672        .update(cx, |workspace, _, cx| {
 6673            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6674                struct DatabaseFailedNotification;
 6675
 6676                workspace.show_notification(
 6677                    NotificationId::unique::<DatabaseFailedNotification>(),
 6678                    cx,
 6679                    |cx| {
 6680                        cx.new(|cx| {
 6681                            MessageNotification::new("Failed to load the database file.", cx)
 6682                                .primary_message("File an Issue")
 6683                                .primary_icon(IconName::Plus)
 6684                                .primary_on_click(|window, cx| {
 6685                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6686                                })
 6687                        })
 6688                    },
 6689                );
 6690            }
 6691        })
 6692        .log_err();
 6693}
 6694
 6695fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6696    if val == 0 {
 6697        ThemeSettings::get_global(cx).ui_font_size(cx)
 6698    } else {
 6699        px(val as f32)
 6700    }
 6701}
 6702
 6703fn adjust_active_dock_size_by_px(
 6704    px: Pixels,
 6705    workspace: &mut Workspace,
 6706    window: &mut Window,
 6707    cx: &mut Context<Workspace>,
 6708) {
 6709    let Some(active_dock) = workspace
 6710        .all_docks()
 6711        .into_iter()
 6712        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6713    else {
 6714        return;
 6715    };
 6716    let dock = active_dock.read(cx);
 6717    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6718        return;
 6719    };
 6720    let dock_pos = dock.position();
 6721    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6722}
 6723
 6724fn adjust_open_docks_size_by_px(
 6725    px: Pixels,
 6726    workspace: &mut Workspace,
 6727    window: &mut Window,
 6728    cx: &mut Context<Workspace>,
 6729) {
 6730    let docks = workspace
 6731        .all_docks()
 6732        .into_iter()
 6733        .filter_map(|dock| {
 6734            if dock.read(cx).is_open() {
 6735                let dock = dock.read(cx);
 6736                let panel_size = dock.active_panel_size(window, cx)?;
 6737                let dock_pos = dock.position();
 6738                Some((panel_size, dock_pos, px))
 6739            } else {
 6740                None
 6741            }
 6742        })
 6743        .collect::<Vec<_>>();
 6744
 6745    docks
 6746        .into_iter()
 6747        .for_each(|(panel_size, dock_pos, offset)| {
 6748            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6749        });
 6750}
 6751
 6752impl Focusable for Workspace {
 6753    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6754        self.active_pane.focus_handle(cx)
 6755    }
 6756}
 6757
 6758#[derive(Clone)]
 6759struct DraggedDock(DockPosition);
 6760
 6761impl Render for DraggedDock {
 6762    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6763        gpui::Empty
 6764    }
 6765}
 6766
 6767impl Render for Workspace {
 6768    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6769        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6770        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6771            log::info!("Rendered first frame");
 6772        }
 6773        let mut context = KeyContext::new_with_defaults();
 6774        context.add("Workspace");
 6775        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6776        if let Some(status) = self
 6777            .debugger_provider
 6778            .as_ref()
 6779            .and_then(|provider| provider.active_thread_state(cx))
 6780        {
 6781            match status {
 6782                ThreadStatus::Running | ThreadStatus::Stepping => {
 6783                    context.add("debugger_running");
 6784                }
 6785                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6786                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6787            }
 6788        }
 6789
 6790        if self.left_dock.read(cx).is_open() {
 6791            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6792                context.set("left_dock", active_panel.panel_key());
 6793            }
 6794        }
 6795
 6796        if self.right_dock.read(cx).is_open() {
 6797            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6798                context.set("right_dock", active_panel.panel_key());
 6799            }
 6800        }
 6801
 6802        if self.bottom_dock.read(cx).is_open() {
 6803            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6804                context.set("bottom_dock", active_panel.panel_key());
 6805            }
 6806        }
 6807
 6808        let centered_layout = self.centered_layout
 6809            && self.center.panes().len() == 1
 6810            && self.active_item(cx).is_some();
 6811        let render_padding = |size| {
 6812            (size > 0.0).then(|| {
 6813                div()
 6814                    .h_full()
 6815                    .w(relative(size))
 6816                    .bg(cx.theme().colors().editor_background)
 6817                    .border_color(cx.theme().colors().pane_group_border)
 6818            })
 6819        };
 6820        let paddings = if centered_layout {
 6821            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6822            (
 6823                render_padding(Self::adjust_padding(
 6824                    settings.left_padding.map(|padding| padding.0),
 6825                )),
 6826                render_padding(Self::adjust_padding(
 6827                    settings.right_padding.map(|padding| padding.0),
 6828                )),
 6829            )
 6830        } else {
 6831            (None, None)
 6832        };
 6833        let ui_font = theme::setup_ui_font(window, cx);
 6834
 6835        let theme = cx.theme().clone();
 6836        let colors = theme.colors();
 6837        let notification_entities = self
 6838            .notifications
 6839            .iter()
 6840            .map(|(_, notification)| notification.entity_id())
 6841            .collect::<Vec<_>>();
 6842        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6843
 6844        client_side_decorations(
 6845            self.actions(div(), window, cx)
 6846                .key_context(context)
 6847                .relative()
 6848                .size_full()
 6849                .flex()
 6850                .flex_col()
 6851                .font(ui_font)
 6852                .gap_0()
 6853                .justify_start()
 6854                .items_start()
 6855                .text_color(colors.text)
 6856                .overflow_hidden()
 6857                .children(self.titlebar_item.clone())
 6858                .on_modifiers_changed(move |_, _, cx| {
 6859                    for &id in &notification_entities {
 6860                        cx.notify(id);
 6861                    }
 6862                })
 6863                .child(
 6864                    div()
 6865                        .size_full()
 6866                        .relative()
 6867                        .flex_1()
 6868                        .flex()
 6869                        .flex_col()
 6870                        .child(
 6871                            div()
 6872                                .id("workspace")
 6873                                .bg(colors.background)
 6874                                .relative()
 6875                                .flex_1()
 6876                                .w_full()
 6877                                .flex()
 6878                                .flex_col()
 6879                                .overflow_hidden()
 6880                                .border_t_1()
 6881                                .border_b_1()
 6882                                .border_color(colors.border)
 6883                                .child({
 6884                                    let this = cx.entity();
 6885                                    canvas(
 6886                                        move |bounds, window, cx| {
 6887                                            this.update(cx, |this, cx| {
 6888                                                let bounds_changed = this.bounds != bounds;
 6889                                                this.bounds = bounds;
 6890
 6891                                                if bounds_changed {
 6892                                                    this.left_dock.update(cx, |dock, cx| {
 6893                                                        dock.clamp_panel_size(
 6894                                                            bounds.size.width,
 6895                                                            window,
 6896                                                            cx,
 6897                                                        )
 6898                                                    });
 6899
 6900                                                    this.right_dock.update(cx, |dock, cx| {
 6901                                                        dock.clamp_panel_size(
 6902                                                            bounds.size.width,
 6903                                                            window,
 6904                                                            cx,
 6905                                                        )
 6906                                                    });
 6907
 6908                                                    this.bottom_dock.update(cx, |dock, cx| {
 6909                                                        dock.clamp_panel_size(
 6910                                                            bounds.size.height,
 6911                                                            window,
 6912                                                            cx,
 6913                                                        )
 6914                                                    });
 6915                                                }
 6916                                            })
 6917                                        },
 6918                                        |_, _, _, _| {},
 6919                                    )
 6920                                    .absolute()
 6921                                    .size_full()
 6922                                })
 6923                                .when(self.zoomed.is_none(), |this| {
 6924                                    this.on_drag_move(cx.listener(
 6925                                        move |workspace,
 6926                                              e: &DragMoveEvent<DraggedDock>,
 6927                                              window,
 6928                                              cx| {
 6929                                            if workspace.previous_dock_drag_coordinates
 6930                                                != Some(e.event.position)
 6931                                            {
 6932                                                workspace.previous_dock_drag_coordinates =
 6933                                                    Some(e.event.position);
 6934                                                match e.drag(cx).0 {
 6935                                                    DockPosition::Left => {
 6936                                                        workspace.resize_left_dock(
 6937                                                            e.event.position.x
 6938                                                                - workspace.bounds.left(),
 6939                                                            window,
 6940                                                            cx,
 6941                                                        );
 6942                                                    }
 6943                                                    DockPosition::Right => {
 6944                                                        workspace.resize_right_dock(
 6945                                                            workspace.bounds.right()
 6946                                                                - e.event.position.x,
 6947                                                            window,
 6948                                                            cx,
 6949                                                        );
 6950                                                    }
 6951                                                    DockPosition::Bottom => {
 6952                                                        workspace.resize_bottom_dock(
 6953                                                            workspace.bounds.bottom()
 6954                                                                - e.event.position.y,
 6955                                                            window,
 6956                                                            cx,
 6957                                                        );
 6958                                                    }
 6959                                                };
 6960                                                workspace.serialize_workspace(window, cx);
 6961                                            }
 6962                                        },
 6963                                    ))
 6964                                    .on_drag_move(cx.listener(
 6965                                        move |workspace,
 6966                                              e: &DragMoveEvent<DraggedUtilityPane>,
 6967                                              window,
 6968                                              cx| {
 6969                                            let slot = e.drag(cx).0;
 6970                                            match slot {
 6971                                                UtilityPaneSlot::Left => {
 6972                                                    let left_dock_width = workspace.left_dock.read(cx)
 6973                                                        .active_panel_size(window, cx)
 6974                                                        .unwrap_or(gpui::px(0.0));
 6975                                                    let new_width = e.event.position.x
 6976                                                        - workspace.bounds.left()
 6977                                                        - left_dock_width;
 6978                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 6979                                                }
 6980                                                UtilityPaneSlot::Right => {
 6981                                                    let right_dock_width = workspace.right_dock.read(cx)
 6982                                                        .active_panel_size(window, cx)
 6983                                                        .unwrap_or(gpui::px(0.0));
 6984                                                    let new_width = workspace.bounds.right()
 6985                                                        - e.event.position.x
 6986                                                        - right_dock_width;
 6987                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 6988                                                }
 6989                                            }
 6990                                        },
 6991                                    ))
 6992                                })
 6993                                .child({
 6994                                    match bottom_dock_layout {
 6995                                        BottomDockLayout::Full => div()
 6996                                            .flex()
 6997                                            .flex_col()
 6998                                            .h_full()
 6999                                            .child(
 7000                                                div()
 7001                                                    .flex()
 7002                                                    .flex_row()
 7003                                                    .flex_1()
 7004                                                    .overflow_hidden()
 7005                                                    .children(self.render_dock(
 7006                                                        DockPosition::Left,
 7007                                                        &self.left_dock,
 7008                                                        window,
 7009                                                        cx,
 7010                                                    ))
 7011                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7012                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7013                                                            this.when(pane.expanded(cx), |this| {
 7014                                                                this.child(
 7015                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7016                                                                )
 7017                                                            })
 7018                                                        })
 7019                                                    })
 7020                                                    .child(
 7021                                                        div()
 7022                                                            .flex()
 7023                                                            .flex_col()
 7024                                                            .flex_1()
 7025                                                            .overflow_hidden()
 7026                                                            .child(
 7027                                                                h_flex()
 7028                                                                    .flex_1()
 7029                                                                    .when_some(
 7030                                                                        paddings.0,
 7031                                                                        |this, p| {
 7032                                                                            this.child(
 7033                                                                                p.border_r_1(),
 7034                                                                            )
 7035                                                                        },
 7036                                                                    )
 7037                                                                    .child(self.center.render(
 7038                                                                        self.zoomed.as_ref(),
 7039                                                                        &PaneRenderContext {
 7040                                                                            follower_states:
 7041                                                                                &self.follower_states,
 7042                                                                            active_call: self.active_call(),
 7043                                                                            active_pane: &self.active_pane,
 7044                                                                            app_state: &self.app_state,
 7045                                                                            project: &self.project,
 7046                                                                            workspace: &self.weak_self,
 7047                                                                        },
 7048                                                                        window,
 7049                                                                        cx,
 7050                                                                    ))
 7051                                                                    .when_some(
 7052                                                                        paddings.1,
 7053                                                                        |this, p| {
 7054                                                                            this.child(
 7055                                                                                p.border_l_1(),
 7056                                                                            )
 7057                                                                        },
 7058                                                                    ),
 7059                                                            ),
 7060                                                    )
 7061                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7062                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7063                                                            this.when(pane.expanded(cx), |this| {
 7064                                                                this.child(
 7065                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7066                                                                )
 7067                                                            })
 7068                                                        })
 7069                                                    })
 7070                                                    .children(self.render_dock(
 7071                                                        DockPosition::Right,
 7072                                                        &self.right_dock,
 7073                                                        window,
 7074                                                        cx,
 7075                                                    )),
 7076                                            )
 7077                                            .child(div().w_full().children(self.render_dock(
 7078                                                DockPosition::Bottom,
 7079                                                &self.bottom_dock,
 7080                                                window,
 7081                                                cx
 7082                                            ))),
 7083
 7084                                        BottomDockLayout::LeftAligned => div()
 7085                                            .flex()
 7086                                            .flex_row()
 7087                                            .h_full()
 7088                                            .child(
 7089                                                div()
 7090                                                    .flex()
 7091                                                    .flex_col()
 7092                                                    .flex_1()
 7093                                                    .h_full()
 7094                                                    .child(
 7095                                                        div()
 7096                                                            .flex()
 7097                                                            .flex_row()
 7098                                                            .flex_1()
 7099                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7100                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7101                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7102                                                                    this.when(pane.expanded(cx), |this| {
 7103                                                                        this.child(
 7104                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7105                                                                        )
 7106                                                                    })
 7107                                                                })
 7108                                                            })
 7109                                                            .child(
 7110                                                                div()
 7111                                                                    .flex()
 7112                                                                    .flex_col()
 7113                                                                    .flex_1()
 7114                                                                    .overflow_hidden()
 7115                                                                    .child(
 7116                                                                        h_flex()
 7117                                                                            .flex_1()
 7118                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7119                                                                            .child(self.center.render(
 7120                                                                                self.zoomed.as_ref(),
 7121                                                                                &PaneRenderContext {
 7122                                                                                    follower_states:
 7123                                                                                        &self.follower_states,
 7124                                                                                    active_call: self.active_call(),
 7125                                                                                    active_pane: &self.active_pane,
 7126                                                                                    app_state: &self.app_state,
 7127                                                                                    project: &self.project,
 7128                                                                                    workspace: &self.weak_self,
 7129                                                                                },
 7130                                                                                window,
 7131                                                                                cx,
 7132                                                                            ))
 7133                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7134                                                                    )
 7135                                                            )
 7136                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7137                                                                this.when(pane.expanded(cx), |this| {
 7138                                                                    this.child(
 7139                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7140                                                                    )
 7141                                                                })
 7142                                                            })
 7143                                                    )
 7144                                                    .child(
 7145                                                        div()
 7146                                                            .w_full()
 7147                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7148                                                    ),
 7149                                            )
 7150                                            .children(self.render_dock(
 7151                                                DockPosition::Right,
 7152                                                &self.right_dock,
 7153                                                window,
 7154                                                cx,
 7155                                            )),
 7156
 7157                                        BottomDockLayout::RightAligned => div()
 7158                                            .flex()
 7159                                            .flex_row()
 7160                                            .h_full()
 7161                                            .children(self.render_dock(
 7162                                                DockPosition::Left,
 7163                                                &self.left_dock,
 7164                                                window,
 7165                                                cx,
 7166                                            ))
 7167                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7168                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7169                                                    this.when(pane.expanded(cx), |this| {
 7170                                                        this.child(
 7171                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7172                                                        )
 7173                                                    })
 7174                                                })
 7175                                            })
 7176                                            .child(
 7177                                                div()
 7178                                                    .flex()
 7179                                                    .flex_col()
 7180                                                    .flex_1()
 7181                                                    .h_full()
 7182                                                    .child(
 7183                                                        div()
 7184                                                            .flex()
 7185                                                            .flex_row()
 7186                                                            .flex_1()
 7187                                                            .child(
 7188                                                                div()
 7189                                                                    .flex()
 7190                                                                    .flex_col()
 7191                                                                    .flex_1()
 7192                                                                    .overflow_hidden()
 7193                                                                    .child(
 7194                                                                        h_flex()
 7195                                                                            .flex_1()
 7196                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7197                                                                            .child(self.center.render(
 7198                                                                                self.zoomed.as_ref(),
 7199                                                                                &PaneRenderContext {
 7200                                                                                    follower_states:
 7201                                                                                        &self.follower_states,
 7202                                                                                    active_call: self.active_call(),
 7203                                                                                    active_pane: &self.active_pane,
 7204                                                                                    app_state: &self.app_state,
 7205                                                                                    project: &self.project,
 7206                                                                                    workspace: &self.weak_self,
 7207                                                                                },
 7208                                                                                window,
 7209                                                                                cx,
 7210                                                                            ))
 7211                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7212                                                                    )
 7213                                                            )
 7214                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7215                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7216                                                                    this.when(pane.expanded(cx), |this| {
 7217                                                                        this.child(
 7218                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7219                                                                        )
 7220                                                                    })
 7221                                                                })
 7222                                                            })
 7223                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7224                                                    )
 7225                                                    .child(
 7226                                                        div()
 7227                                                            .w_full()
 7228                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7229                                                    ),
 7230                                            ),
 7231
 7232                                        BottomDockLayout::Contained => div()
 7233                                            .flex()
 7234                                            .flex_row()
 7235                                            .h_full()
 7236                                            .children(self.render_dock(
 7237                                                DockPosition::Left,
 7238                                                &self.left_dock,
 7239                                                window,
 7240                                                cx,
 7241                                            ))
 7242                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7243                                                this.when(pane.expanded(cx), |this| {
 7244                                                    this.child(
 7245                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7246                                                    )
 7247                                                })
 7248                                            })
 7249                                            .child(
 7250                                                div()
 7251                                                    .flex()
 7252                                                    .flex_col()
 7253                                                    .flex_1()
 7254                                                    .overflow_hidden()
 7255                                                    .child(
 7256                                                        h_flex()
 7257                                                            .flex_1()
 7258                                                            .when_some(paddings.0, |this, p| {
 7259                                                                this.child(p.border_r_1())
 7260                                                            })
 7261                                                            .child(self.center.render(
 7262                                                                self.zoomed.as_ref(),
 7263                                                                &PaneRenderContext {
 7264                                                                    follower_states:
 7265                                                                        &self.follower_states,
 7266                                                                    active_call: self.active_call(),
 7267                                                                    active_pane: &self.active_pane,
 7268                                                                    app_state: &self.app_state,
 7269                                                                    project: &self.project,
 7270                                                                    workspace: &self.weak_self,
 7271                                                                },
 7272                                                                window,
 7273                                                                cx,
 7274                                                            ))
 7275                                                            .when_some(paddings.1, |this, p| {
 7276                                                                this.child(p.border_l_1())
 7277                                                            }),
 7278                                                    )
 7279                                                    .children(self.render_dock(
 7280                                                        DockPosition::Bottom,
 7281                                                        &self.bottom_dock,
 7282                                                        window,
 7283                                                        cx,
 7284                                                    )),
 7285                                            )
 7286                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7287                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7288                                                    this.when(pane.expanded(cx), |this| {
 7289                                                        this.child(
 7290                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7291                                                        )
 7292                                                    })
 7293                                                })
 7294                                            })
 7295                                            .children(self.render_dock(
 7296                                                DockPosition::Right,
 7297                                                &self.right_dock,
 7298                                                window,
 7299                                                cx,
 7300                                            )),
 7301                                    }
 7302                                })
 7303                                .children(self.zoomed.as_ref().and_then(|view| {
 7304                                    let zoomed_view = view.upgrade()?;
 7305                                    let div = div()
 7306                                        .occlude()
 7307                                        .absolute()
 7308                                        .overflow_hidden()
 7309                                        .border_color(colors.border)
 7310                                        .bg(colors.background)
 7311                                        .child(zoomed_view)
 7312                                        .inset_0()
 7313                                        .shadow_lg();
 7314
 7315                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7316                                       return Some(div);
 7317                                    }
 7318
 7319                                    Some(match self.zoomed_position {
 7320                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7321                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7322                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7323                                        None => {
 7324                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7325                                        }
 7326                                    })
 7327                                }))
 7328                                .children(self.render_notifications(window, cx)),
 7329                        )
 7330                        .when(self.status_bar_visible(cx), |parent| {
 7331                            parent.child(self.status_bar.clone())
 7332                        })
 7333                        .child(self.modal_layer.clone())
 7334                        .child(self.toast_layer.clone()),
 7335                ),
 7336            window,
 7337            cx,
 7338        )
 7339    }
 7340}
 7341
 7342impl WorkspaceStore {
 7343    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7344        Self {
 7345            workspaces: Default::default(),
 7346            _subscriptions: vec![
 7347                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7348                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7349            ],
 7350            client,
 7351        }
 7352    }
 7353
 7354    pub fn update_followers(
 7355        &self,
 7356        project_id: Option<u64>,
 7357        update: proto::update_followers::Variant,
 7358        cx: &App,
 7359    ) -> Option<()> {
 7360        let active_call = ActiveCall::try_global(cx)?;
 7361        let room_id = active_call.read(cx).room()?.read(cx).id();
 7362        self.client
 7363            .send(proto::UpdateFollowers {
 7364                room_id,
 7365                project_id,
 7366                variant: Some(update),
 7367            })
 7368            .log_err()
 7369    }
 7370
 7371    pub async fn handle_follow(
 7372        this: Entity<Self>,
 7373        envelope: TypedEnvelope<proto::Follow>,
 7374        mut cx: AsyncApp,
 7375    ) -> Result<proto::FollowResponse> {
 7376        this.update(&mut cx, |this, cx| {
 7377            let follower = Follower {
 7378                project_id: envelope.payload.project_id,
 7379                peer_id: envelope.original_sender_id()?,
 7380            };
 7381
 7382            let mut response = proto::FollowResponse::default();
 7383            this.workspaces.retain(|workspace| {
 7384                workspace
 7385                    .update(cx, |workspace, window, cx| {
 7386                        let handler_response =
 7387                            workspace.handle_follow(follower.project_id, window, cx);
 7388                        if let Some(active_view) = handler_response.active_view
 7389                            && workspace.project.read(cx).remote_id() == follower.project_id
 7390                        {
 7391                            response.active_view = Some(active_view)
 7392                        }
 7393                    })
 7394                    .is_ok()
 7395            });
 7396
 7397            Ok(response)
 7398        })?
 7399    }
 7400
 7401    async fn handle_update_followers(
 7402        this: Entity<Self>,
 7403        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7404        mut cx: AsyncApp,
 7405    ) -> Result<()> {
 7406        let leader_id = envelope.original_sender_id()?;
 7407        let update = envelope.payload;
 7408
 7409        this.update(&mut cx, |this, cx| {
 7410            this.workspaces.retain(|workspace| {
 7411                workspace
 7412                    .update(cx, |workspace, window, cx| {
 7413                        let project_id = workspace.project.read(cx).remote_id();
 7414                        if update.project_id != project_id && update.project_id.is_some() {
 7415                            return;
 7416                        }
 7417                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7418                    })
 7419                    .is_ok()
 7420            });
 7421            Ok(())
 7422        })?
 7423    }
 7424
 7425    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7426        &self.workspaces
 7427    }
 7428}
 7429
 7430impl ViewId {
 7431    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7432        Ok(Self {
 7433            creator: message
 7434                .creator
 7435                .map(CollaboratorId::PeerId)
 7436                .context("creator is missing")?,
 7437            id: message.id,
 7438        })
 7439    }
 7440
 7441    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7442        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7443            Some(proto::ViewId {
 7444                creator: Some(peer_id),
 7445                id: self.id,
 7446            })
 7447        } else {
 7448            None
 7449        }
 7450    }
 7451}
 7452
 7453impl FollowerState {
 7454    fn pane(&self) -> &Entity<Pane> {
 7455        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7456    }
 7457}
 7458
 7459pub trait WorkspaceHandle {
 7460    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7461}
 7462
 7463impl WorkspaceHandle for Entity<Workspace> {
 7464    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7465        self.read(cx)
 7466            .worktrees(cx)
 7467            .flat_map(|worktree| {
 7468                let worktree_id = worktree.read(cx).id();
 7469                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7470                    worktree_id,
 7471                    path: f.path.clone(),
 7472                })
 7473            })
 7474            .collect::<Vec<_>>()
 7475    }
 7476}
 7477
 7478pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7479    DB.last_workspace().await.log_err().flatten()
 7480}
 7481
 7482pub fn last_session_workspace_locations(
 7483    last_session_id: &str,
 7484    last_session_window_stack: Option<Vec<WindowId>>,
 7485) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7486    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7487        .log_err()
 7488}
 7489
 7490actions!(
 7491    collab,
 7492    [
 7493        /// Opens the channel notes for the current call.
 7494        ///
 7495        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7496        /// channel in the collab panel.
 7497        ///
 7498        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7499        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7500        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7501        OpenChannelNotes,
 7502        /// Mutes your microphone.
 7503        Mute,
 7504        /// Deafens yourself (mute both microphone and speakers).
 7505        Deafen,
 7506        /// Leaves the current call.
 7507        LeaveCall,
 7508        /// Shares the current project with collaborators.
 7509        ShareProject,
 7510        /// Shares your screen with collaborators.
 7511        ScreenShare,
 7512        /// Copies the current room name and session id for debugging purposes.
 7513        CopyRoomId,
 7514    ]
 7515);
 7516actions!(
 7517    zed,
 7518    [
 7519        /// Opens the Zed log file.
 7520        OpenLog,
 7521        /// Reveals the Zed log file in the system file manager.
 7522        RevealLogInFileManager
 7523    ]
 7524);
 7525
 7526async fn join_channel_internal(
 7527    channel_id: ChannelId,
 7528    app_state: &Arc<AppState>,
 7529    requesting_window: Option<WindowHandle<Workspace>>,
 7530    active_call: &Entity<ActiveCall>,
 7531    cx: &mut AsyncApp,
 7532) -> Result<bool> {
 7533    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7534        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7535            return (false, None);
 7536        };
 7537
 7538        let already_in_channel = room.channel_id() == Some(channel_id);
 7539        let should_prompt = room.is_sharing_project()
 7540            && !room.remote_participants().is_empty()
 7541            && !already_in_channel;
 7542        let open_room = if already_in_channel {
 7543            active_call.room().cloned()
 7544        } else {
 7545            None
 7546        };
 7547        (should_prompt, open_room)
 7548    })?;
 7549
 7550    if let Some(room) = open_room {
 7551        let task = room.update(cx, |room, cx| {
 7552            if let Some((project, host)) = room.most_active_project(cx) {
 7553                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7554            }
 7555
 7556            None
 7557        })?;
 7558        if let Some(task) = task {
 7559            task.await?;
 7560        }
 7561        return anyhow::Ok(true);
 7562    }
 7563
 7564    if should_prompt {
 7565        if let Some(workspace) = requesting_window {
 7566            let answer = workspace
 7567                .update(cx, |_, window, cx| {
 7568                    window.prompt(
 7569                        PromptLevel::Warning,
 7570                        "Do you want to switch channels?",
 7571                        Some("Leaving this call will unshare your current project."),
 7572                        &["Yes, Join Channel", "Cancel"],
 7573                        cx,
 7574                    )
 7575                })?
 7576                .await;
 7577
 7578            if answer == Ok(1) {
 7579                return Ok(false);
 7580            }
 7581        } else {
 7582            return Ok(false); // unreachable!() hopefully
 7583        }
 7584    }
 7585
 7586    let client = cx.update(|cx| active_call.read(cx).client())?;
 7587
 7588    let mut client_status = client.status();
 7589
 7590    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7591    'outer: loop {
 7592        let Some(status) = client_status.recv().await else {
 7593            anyhow::bail!("error connecting");
 7594        };
 7595
 7596        match status {
 7597            Status::Connecting
 7598            | Status::Authenticating
 7599            | Status::Authenticated
 7600            | Status::Reconnecting
 7601            | Status::Reauthenticating
 7602            | Status::Reauthenticated => continue,
 7603            Status::Connected { .. } => break 'outer,
 7604            Status::SignedOut | Status::AuthenticationError => {
 7605                return Err(ErrorCode::SignedOut.into());
 7606            }
 7607            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7608            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7609                return Err(ErrorCode::Disconnected.into());
 7610            }
 7611        }
 7612    }
 7613
 7614    let room = active_call
 7615        .update(cx, |active_call, cx| {
 7616            active_call.join_channel(channel_id, cx)
 7617        })?
 7618        .await?;
 7619
 7620    let Some(room) = room else {
 7621        return anyhow::Ok(true);
 7622    };
 7623
 7624    room.update(cx, |room, _| room.room_update_completed())?
 7625        .await;
 7626
 7627    let task = room.update(cx, |room, cx| {
 7628        if let Some((project, host)) = room.most_active_project(cx) {
 7629            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7630        }
 7631
 7632        // If you are the first to join a channel, see if you should share your project.
 7633        if room.remote_participants().is_empty()
 7634            && !room.local_participant_is_guest()
 7635            && let Some(workspace) = requesting_window
 7636        {
 7637            let project = workspace.update(cx, |workspace, _, cx| {
 7638                let project = workspace.project.read(cx);
 7639
 7640                if !CallSettings::get_global(cx).share_on_join {
 7641                    return None;
 7642                }
 7643
 7644                if (project.is_local() || project.is_via_remote_server())
 7645                    && project.visible_worktrees(cx).any(|tree| {
 7646                        tree.read(cx)
 7647                            .root_entry()
 7648                            .is_some_and(|entry| entry.is_dir())
 7649                    })
 7650                {
 7651                    Some(workspace.project.clone())
 7652                } else {
 7653                    None
 7654                }
 7655            });
 7656            if let Ok(Some(project)) = project {
 7657                return Some(cx.spawn(async move |room, cx| {
 7658                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7659                        .await?;
 7660                    Ok(())
 7661                }));
 7662            }
 7663        }
 7664
 7665        None
 7666    })?;
 7667    if let Some(task) = task {
 7668        task.await?;
 7669        return anyhow::Ok(true);
 7670    }
 7671    anyhow::Ok(false)
 7672}
 7673
 7674pub fn join_channel(
 7675    channel_id: ChannelId,
 7676    app_state: Arc<AppState>,
 7677    requesting_window: Option<WindowHandle<Workspace>>,
 7678    cx: &mut App,
 7679) -> Task<Result<()>> {
 7680    let active_call = ActiveCall::global(cx);
 7681    cx.spawn(async move |cx| {
 7682        let result =
 7683            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7684                .await;
 7685
 7686        // join channel succeeded, and opened a window
 7687        if matches!(result, Ok(true)) {
 7688            return anyhow::Ok(());
 7689        }
 7690
 7691        // find an existing workspace to focus and show call controls
 7692        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7693        if active_window.is_none() {
 7694            // no open workspaces, make one to show the error in (blergh)
 7695            let (window_handle, _) = cx
 7696                .update(|cx| {
 7697                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7698                })?
 7699                .await?;
 7700
 7701            if result.is_ok() {
 7702                cx.update(|cx| {
 7703                    cx.dispatch_action(&OpenChannelNotes);
 7704                })
 7705                .log_err();
 7706            }
 7707
 7708            active_window = Some(window_handle);
 7709        }
 7710
 7711        if let Err(err) = result {
 7712            log::error!("failed to join channel: {}", err);
 7713            if let Some(active_window) = active_window {
 7714                active_window
 7715                    .update(cx, |_, window, cx| {
 7716                        let detail: SharedString = match err.error_code() {
 7717                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7718                            ErrorCode::UpgradeRequired => concat!(
 7719                                "Your are running an unsupported version of Zed. ",
 7720                                "Please update to continue."
 7721                            )
 7722                            .into(),
 7723                            ErrorCode::NoSuchChannel => concat!(
 7724                                "No matching channel was found. ",
 7725                                "Please check the link and try again."
 7726                            )
 7727                            .into(),
 7728                            ErrorCode::Forbidden => concat!(
 7729                                "This channel is private, and you do not have access. ",
 7730                                "Please ask someone to add you and try again."
 7731                            )
 7732                            .into(),
 7733                            ErrorCode::Disconnected => {
 7734                                "Please check your internet connection and try again.".into()
 7735                            }
 7736                            _ => format!("{}\n\nPlease try again.", err).into(),
 7737                        };
 7738                        window.prompt(
 7739                            PromptLevel::Critical,
 7740                            "Failed to join channel",
 7741                            Some(&detail),
 7742                            &["Ok"],
 7743                            cx,
 7744                        )
 7745                    })?
 7746                    .await
 7747                    .ok();
 7748            }
 7749        }
 7750
 7751        // return ok, we showed the error to the user.
 7752        anyhow::Ok(())
 7753    })
 7754}
 7755
 7756pub async fn get_any_active_workspace(
 7757    app_state: Arc<AppState>,
 7758    mut cx: AsyncApp,
 7759) -> anyhow::Result<WindowHandle<Workspace>> {
 7760    // find an existing workspace to focus and show call controls
 7761    let active_window = activate_any_workspace_window(&mut cx);
 7762    if active_window.is_none() {
 7763        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7764            .await?;
 7765    }
 7766    activate_any_workspace_window(&mut cx).context("could not open zed")
 7767}
 7768
 7769fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7770    cx.update(|cx| {
 7771        if let Some(workspace_window) = cx
 7772            .active_window()
 7773            .and_then(|window| window.downcast::<Workspace>())
 7774        {
 7775            return Some(workspace_window);
 7776        }
 7777
 7778        for window in cx.windows() {
 7779            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7780                workspace_window
 7781                    .update(cx, |_, window, _| window.activate_window())
 7782                    .ok();
 7783                return Some(workspace_window);
 7784            }
 7785        }
 7786        None
 7787    })
 7788    .ok()
 7789    .flatten()
 7790}
 7791
 7792pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7793    cx.windows()
 7794        .into_iter()
 7795        .filter_map(|window| window.downcast::<Workspace>())
 7796        .filter(|workspace| {
 7797            workspace
 7798                .read(cx)
 7799                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7800        })
 7801        .collect()
 7802}
 7803
 7804#[derive(Default)]
 7805pub struct OpenOptions {
 7806    pub visible: Option<OpenVisible>,
 7807    pub focus: Option<bool>,
 7808    pub open_new_workspace: Option<bool>,
 7809    pub prefer_focused_window: bool,
 7810    pub replace_window: Option<WindowHandle<Workspace>>,
 7811    pub env: Option<HashMap<String, String>>,
 7812}
 7813
 7814#[allow(clippy::type_complexity)]
 7815pub fn open_paths(
 7816    abs_paths: &[PathBuf],
 7817    app_state: Arc<AppState>,
 7818    open_options: OpenOptions,
 7819    cx: &mut App,
 7820) -> Task<
 7821    anyhow::Result<(
 7822        WindowHandle<Workspace>,
 7823        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7824    )>,
 7825> {
 7826    let abs_paths = abs_paths.to_vec();
 7827    let mut existing = None;
 7828    let mut best_match = None;
 7829    let mut open_visible = OpenVisible::All;
 7830    #[cfg(target_os = "windows")]
 7831    let wsl_path = abs_paths
 7832        .iter()
 7833        .find_map(|p| util::paths::WslPath::from_path(p));
 7834
 7835    cx.spawn(async move |cx| {
 7836        if open_options.open_new_workspace != Some(true) {
 7837            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7838            let all_metadatas = futures::future::join_all(all_paths)
 7839                .await
 7840                .into_iter()
 7841                .filter_map(|result| result.ok().flatten())
 7842                .collect::<Vec<_>>();
 7843
 7844            cx.update(|cx| {
 7845                for window in local_workspace_windows(cx) {
 7846                    if let Ok(workspace) = window.read(cx) {
 7847                        let m = workspace.project.read(cx).visibility_for_paths(
 7848                            &abs_paths,
 7849                            &all_metadatas,
 7850                            open_options.open_new_workspace == None,
 7851                            cx,
 7852                        );
 7853                        if m > best_match {
 7854                            existing = Some(window);
 7855                            best_match = m;
 7856                        } else if best_match.is_none()
 7857                            && open_options.open_new_workspace == Some(false)
 7858                        {
 7859                            existing = Some(window)
 7860                        }
 7861                    }
 7862                }
 7863            })?;
 7864
 7865            if open_options.open_new_workspace.is_none()
 7866                && (existing.is_none() || open_options.prefer_focused_window)
 7867                && all_metadatas.iter().all(|file| !file.is_dir)
 7868            {
 7869                cx.update(|cx| {
 7870                    if let Some(window) = cx
 7871                        .active_window()
 7872                        .and_then(|window| window.downcast::<Workspace>())
 7873                        && let Ok(workspace) = window.read(cx)
 7874                    {
 7875                        let project = workspace.project().read(cx);
 7876                        if project.is_local() && !project.is_via_collab() {
 7877                            existing = Some(window);
 7878                            open_visible = OpenVisible::None;
 7879                            return;
 7880                        }
 7881                    }
 7882                    for window in local_workspace_windows(cx) {
 7883                        if let Ok(workspace) = window.read(cx) {
 7884                            let project = workspace.project().read(cx);
 7885                            if project.is_via_collab() {
 7886                                continue;
 7887                            }
 7888                            existing = Some(window);
 7889                            open_visible = OpenVisible::None;
 7890                            break;
 7891                        }
 7892                    }
 7893                })?;
 7894            }
 7895        }
 7896
 7897        let result = if let Some(existing) = existing {
 7898            let open_task = existing
 7899                .update(cx, |workspace, window, cx| {
 7900                    window.activate_window();
 7901                    workspace.open_paths(
 7902                        abs_paths,
 7903                        OpenOptions {
 7904                            visible: Some(open_visible),
 7905                            ..Default::default()
 7906                        },
 7907                        None,
 7908                        window,
 7909                        cx,
 7910                    )
 7911                })?
 7912                .await;
 7913
 7914            _ = existing.update(cx, |workspace, _, cx| {
 7915                for item in open_task.iter().flatten() {
 7916                    if let Err(e) = item {
 7917                        workspace.show_error(&e, cx);
 7918                    }
 7919                }
 7920            });
 7921
 7922            Ok((existing, open_task))
 7923        } else {
 7924            cx.update(move |cx| {
 7925                Workspace::new_local(
 7926                    abs_paths,
 7927                    app_state.clone(),
 7928                    open_options.replace_window,
 7929                    open_options.env,
 7930                    cx,
 7931                )
 7932            })?
 7933            .await
 7934        };
 7935
 7936        #[cfg(target_os = "windows")]
 7937        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7938            && let Ok((workspace, _)) = &result
 7939        {
 7940            workspace
 7941                .update(cx, move |workspace, _window, cx| {
 7942                    struct OpenInWsl;
 7943                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7944                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7945                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7946                        cx.new(move |cx| {
 7947                            MessageNotification::new(msg, cx)
 7948                                .primary_message("Open in WSL")
 7949                                .primary_icon(IconName::FolderOpen)
 7950                                .primary_on_click(move |window, cx| {
 7951                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7952                                            distro: remote::WslConnectionOptions {
 7953                                                    distro_name: distro.clone(),
 7954                                                user: None,
 7955                                            },
 7956                                            paths: vec![path.clone().into()],
 7957                                        }), cx)
 7958                                })
 7959                        })
 7960                    });
 7961                })
 7962                .unwrap();
 7963        };
 7964        result
 7965    })
 7966}
 7967
 7968pub fn open_new(
 7969    open_options: OpenOptions,
 7970    app_state: Arc<AppState>,
 7971    cx: &mut App,
 7972    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 7973) -> Task<anyhow::Result<()>> {
 7974    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 7975    cx.spawn(async move |cx| {
 7976        let (workspace, opened_paths) = task.await?;
 7977        workspace.update(cx, |workspace, window, cx| {
 7978            if opened_paths.is_empty() {
 7979                init(workspace, window, cx)
 7980            }
 7981        })?;
 7982        Ok(())
 7983    })
 7984}
 7985
 7986pub fn create_and_open_local_file(
 7987    path: &'static Path,
 7988    window: &mut Window,
 7989    cx: &mut Context<Workspace>,
 7990    default_content: impl 'static + Send + FnOnce() -> Rope,
 7991) -> Task<Result<Box<dyn ItemHandle>>> {
 7992    cx.spawn_in(window, async move |workspace, cx| {
 7993        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 7994        if !fs.is_file(path).await {
 7995            fs.create_file(path, Default::default()).await?;
 7996            fs.save(path, &default_content(), Default::default())
 7997                .await?;
 7998        }
 7999
 8000        let mut items = workspace
 8001            .update_in(cx, |workspace, window, cx| {
 8002                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8003                    workspace.open_paths(
 8004                        vec![path.to_path_buf()],
 8005                        OpenOptions {
 8006                            visible: Some(OpenVisible::None),
 8007                            ..Default::default()
 8008                        },
 8009                        None,
 8010                        window,
 8011                        cx,
 8012                    )
 8013                })
 8014            })?
 8015            .await?
 8016            .await;
 8017
 8018        let item = items.pop().flatten();
 8019        item.with_context(|| format!("path {path:?} is not a file"))?
 8020    })
 8021}
 8022
 8023pub fn open_remote_project_with_new_connection(
 8024    window: WindowHandle<Workspace>,
 8025    remote_connection: Arc<dyn RemoteConnection>,
 8026    cancel_rx: oneshot::Receiver<()>,
 8027    delegate: Arc<dyn RemoteClientDelegate>,
 8028    app_state: Arc<AppState>,
 8029    paths: Vec<PathBuf>,
 8030    cx: &mut App,
 8031) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8032    cx.spawn(async move |cx| {
 8033        let (workspace_id, serialized_workspace) =
 8034            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8035                .await?;
 8036
 8037        let session = match cx
 8038            .update(|cx| {
 8039                remote::RemoteClient::new(
 8040                    ConnectionIdentifier::Workspace(workspace_id.0),
 8041                    remote_connection,
 8042                    cancel_rx,
 8043                    delegate,
 8044                    cx,
 8045                )
 8046            })?
 8047            .await?
 8048        {
 8049            Some(result) => result,
 8050            None => return Ok(Vec::new()),
 8051        };
 8052
 8053        let project = cx.update(|cx| {
 8054            project::Project::remote(
 8055                session,
 8056                app_state.client.clone(),
 8057                app_state.node_runtime.clone(),
 8058                app_state.user_store.clone(),
 8059                app_state.languages.clone(),
 8060                app_state.fs.clone(),
 8061                true,
 8062                cx,
 8063            )
 8064        })?;
 8065
 8066        open_remote_project_inner(
 8067            project,
 8068            paths,
 8069            workspace_id,
 8070            serialized_workspace,
 8071            app_state,
 8072            window,
 8073            cx,
 8074        )
 8075        .await
 8076    })
 8077}
 8078
 8079pub fn open_remote_project_with_existing_connection(
 8080    connection_options: RemoteConnectionOptions,
 8081    project: Entity<Project>,
 8082    paths: Vec<PathBuf>,
 8083    app_state: Arc<AppState>,
 8084    window: WindowHandle<Workspace>,
 8085    cx: &mut AsyncApp,
 8086) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8087    cx.spawn(async move |cx| {
 8088        let (workspace_id, serialized_workspace) =
 8089            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8090
 8091        open_remote_project_inner(
 8092            project,
 8093            paths,
 8094            workspace_id,
 8095            serialized_workspace,
 8096            app_state,
 8097            window,
 8098            cx,
 8099        )
 8100        .await
 8101    })
 8102}
 8103
 8104async fn open_remote_project_inner(
 8105    project: Entity<Project>,
 8106    paths: Vec<PathBuf>,
 8107    workspace_id: WorkspaceId,
 8108    serialized_workspace: Option<SerializedWorkspace>,
 8109    app_state: Arc<AppState>,
 8110    window: WindowHandle<Workspace>,
 8111    cx: &mut AsyncApp,
 8112) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8113    let toolchains = DB.toolchains(workspace_id).await?;
 8114    for (toolchain, worktree_id, path) in toolchains {
 8115        project
 8116            .update(cx, |this, cx| {
 8117                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8118            })?
 8119            .await;
 8120    }
 8121    let mut project_paths_to_open = vec![];
 8122    let mut project_path_errors = vec![];
 8123
 8124    for path in paths {
 8125        let result = cx
 8126            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8127            .await;
 8128        match result {
 8129            Ok((_, project_path)) => {
 8130                project_paths_to_open.push((path.clone(), Some(project_path)));
 8131            }
 8132            Err(error) => {
 8133                project_path_errors.push(error);
 8134            }
 8135        };
 8136    }
 8137
 8138    if project_paths_to_open.is_empty() {
 8139        return Err(project_path_errors.pop().context("no paths given")?);
 8140    }
 8141
 8142    if let Some(detach_session_task) = window
 8143        .update(cx, |_workspace, window, cx| {
 8144            cx.spawn_in(window, async move |this, cx| {
 8145                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8146            })
 8147        })
 8148        .ok()
 8149    {
 8150        detach_session_task.await.ok();
 8151    }
 8152
 8153    cx.update_window(window.into(), |_, window, cx| {
 8154        window.replace_root(cx, |window, cx| {
 8155            telemetry::event!("SSH Project Opened");
 8156
 8157            let mut workspace =
 8158                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8159            workspace.update_history(cx);
 8160
 8161            if let Some(ref serialized) = serialized_workspace {
 8162                workspace.centered_layout = serialized.centered_layout;
 8163            }
 8164
 8165            workspace
 8166        });
 8167    })?;
 8168
 8169    let items = window
 8170        .update(cx, |_, window, cx| {
 8171            window.activate_window();
 8172            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8173        })?
 8174        .await?;
 8175
 8176    window.update(cx, |workspace, _, cx| {
 8177        for error in project_path_errors {
 8178            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8179                if let Some(path) = error.error_tag("path") {
 8180                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8181                }
 8182            } else {
 8183                workspace.show_error(&error, cx)
 8184            }
 8185        }
 8186    })?;
 8187
 8188    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8189}
 8190
 8191fn deserialize_remote_project(
 8192    connection_options: RemoteConnectionOptions,
 8193    paths: Vec<PathBuf>,
 8194    cx: &AsyncApp,
 8195) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8196    cx.background_spawn(async move {
 8197        let remote_connection_id = persistence::DB
 8198            .get_or_create_remote_connection(connection_options)
 8199            .await?;
 8200
 8201        let serialized_workspace =
 8202            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8203
 8204        let workspace_id = if let Some(workspace_id) =
 8205            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8206        {
 8207            workspace_id
 8208        } else {
 8209            persistence::DB.next_id().await?
 8210        };
 8211
 8212        Ok((workspace_id, serialized_workspace))
 8213    })
 8214}
 8215
 8216pub fn join_in_room_project(
 8217    project_id: u64,
 8218    follow_user_id: u64,
 8219    app_state: Arc<AppState>,
 8220    cx: &mut App,
 8221) -> Task<Result<()>> {
 8222    let windows = cx.windows();
 8223    cx.spawn(async move |cx| {
 8224        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8225            window_handle
 8226                .downcast::<Workspace>()
 8227                .and_then(|window_handle| {
 8228                    window_handle
 8229                        .update(cx, |workspace, _window, cx| {
 8230                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8231                                Some(window_handle)
 8232                            } else {
 8233                                None
 8234                            }
 8235                        })
 8236                        .unwrap_or(None)
 8237                })
 8238        });
 8239
 8240        let workspace = if let Some(existing_workspace) = existing_workspace {
 8241            existing_workspace
 8242        } else {
 8243            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8244            let room = active_call
 8245                .read_with(cx, |call, _| call.room().cloned())?
 8246                .context("not in a call")?;
 8247            let project = room
 8248                .update(cx, |room, cx| {
 8249                    room.join_project(
 8250                        project_id,
 8251                        app_state.languages.clone(),
 8252                        app_state.fs.clone(),
 8253                        cx,
 8254                    )
 8255                })?
 8256                .await?;
 8257
 8258            let window_bounds_override = window_bounds_env_override();
 8259            cx.update(|cx| {
 8260                let mut options = (app_state.build_window_options)(None, cx);
 8261                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8262                cx.open_window(options, |window, cx| {
 8263                    cx.new(|cx| {
 8264                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8265                    })
 8266                })
 8267            })??
 8268        };
 8269
 8270        workspace.update(cx, |workspace, window, cx| {
 8271            cx.activate(true);
 8272            window.activate_window();
 8273
 8274            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8275                let follow_peer_id = room
 8276                    .read(cx)
 8277                    .remote_participants()
 8278                    .iter()
 8279                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8280                    .map(|(_, p)| p.peer_id)
 8281                    .or_else(|| {
 8282                        // If we couldn't follow the given user, follow the host instead.
 8283                        let collaborator = workspace
 8284                            .project()
 8285                            .read(cx)
 8286                            .collaborators()
 8287                            .values()
 8288                            .find(|collaborator| collaborator.is_host)?;
 8289                        Some(collaborator.peer_id)
 8290                    });
 8291
 8292                if let Some(follow_peer_id) = follow_peer_id {
 8293                    workspace.follow(follow_peer_id, window, cx);
 8294                }
 8295            }
 8296        })?;
 8297
 8298        anyhow::Ok(())
 8299    })
 8300}
 8301
 8302pub fn reload(cx: &mut App) {
 8303    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8304    let mut workspace_windows = cx
 8305        .windows()
 8306        .into_iter()
 8307        .filter_map(|window| window.downcast::<Workspace>())
 8308        .collect::<Vec<_>>();
 8309
 8310    // If multiple windows have unsaved changes, and need a save prompt,
 8311    // prompt in the active window before switching to a different window.
 8312    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8313
 8314    let mut prompt = None;
 8315    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8316        prompt = window
 8317            .update(cx, |_, window, cx| {
 8318                window.prompt(
 8319                    PromptLevel::Info,
 8320                    "Are you sure you want to restart?",
 8321                    None,
 8322                    &["Restart", "Cancel"],
 8323                    cx,
 8324                )
 8325            })
 8326            .ok();
 8327    }
 8328
 8329    cx.spawn(async move |cx| {
 8330        if let Some(prompt) = prompt {
 8331            let answer = prompt.await?;
 8332            if answer != 0 {
 8333                return Ok(());
 8334            }
 8335        }
 8336
 8337        // If the user cancels any save prompt, then keep the app open.
 8338        for window in workspace_windows {
 8339            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8340                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8341            }) && !should_close.await?
 8342            {
 8343                return Ok(());
 8344            }
 8345        }
 8346        cx.update(|cx| cx.restart())
 8347    })
 8348    .detach_and_log_err(cx);
 8349}
 8350
 8351fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8352    let mut parts = value.split(',');
 8353    let x: usize = parts.next()?.parse().ok()?;
 8354    let y: usize = parts.next()?.parse().ok()?;
 8355    Some(point(px(x as f32), px(y as f32)))
 8356}
 8357
 8358fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8359    let mut parts = value.split(',');
 8360    let width: usize = parts.next()?.parse().ok()?;
 8361    let height: usize = parts.next()?.parse().ok()?;
 8362    Some(size(px(width as f32), px(height as f32)))
 8363}
 8364
 8365/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8366pub fn client_side_decorations(
 8367    element: impl IntoElement,
 8368    window: &mut Window,
 8369    cx: &mut App,
 8370) -> Stateful<Div> {
 8371    const BORDER_SIZE: Pixels = px(1.0);
 8372    let decorations = window.window_decorations();
 8373
 8374    match decorations {
 8375        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8376        Decorations::Server => window.set_client_inset(px(0.0)),
 8377    }
 8378
 8379    struct GlobalResizeEdge(ResizeEdge);
 8380    impl Global for GlobalResizeEdge {}
 8381
 8382    div()
 8383        .id("window-backdrop")
 8384        .bg(transparent_black())
 8385        .map(|div| match decorations {
 8386            Decorations::Server => div,
 8387            Decorations::Client { tiling, .. } => div
 8388                .when(!(tiling.top || tiling.right), |div| {
 8389                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8390                })
 8391                .when(!(tiling.top || tiling.left), |div| {
 8392                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8393                })
 8394                .when(!(tiling.bottom || tiling.right), |div| {
 8395                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8396                })
 8397                .when(!(tiling.bottom || tiling.left), |div| {
 8398                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8399                })
 8400                .when(!tiling.top, |div| {
 8401                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8402                })
 8403                .when(!tiling.bottom, |div| {
 8404                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8405                })
 8406                .when(!tiling.left, |div| {
 8407                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8408                })
 8409                .when(!tiling.right, |div| {
 8410                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8411                })
 8412                .on_mouse_move(move |e, window, cx| {
 8413                    let size = window.window_bounds().get_bounds().size;
 8414                    let pos = e.position;
 8415
 8416                    let new_edge =
 8417                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8418
 8419                    let edge = cx.try_global::<GlobalResizeEdge>();
 8420                    if new_edge != edge.map(|edge| edge.0) {
 8421                        window
 8422                            .window_handle()
 8423                            .update(cx, |workspace, _, cx| {
 8424                                cx.notify(workspace.entity_id());
 8425                            })
 8426                            .ok();
 8427                    }
 8428                })
 8429                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8430                    let size = window.window_bounds().get_bounds().size;
 8431                    let pos = e.position;
 8432
 8433                    let edge = match resize_edge(
 8434                        pos,
 8435                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8436                        size,
 8437                        tiling,
 8438                    ) {
 8439                        Some(value) => value,
 8440                        None => return,
 8441                    };
 8442
 8443                    window.start_window_resize(edge);
 8444                }),
 8445        })
 8446        .size_full()
 8447        .child(
 8448            div()
 8449                .cursor(CursorStyle::Arrow)
 8450                .map(|div| match decorations {
 8451                    Decorations::Server => div,
 8452                    Decorations::Client { tiling } => div
 8453                        .border_color(cx.theme().colors().border)
 8454                        .when(!(tiling.top || tiling.right), |div| {
 8455                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8456                        })
 8457                        .when(!(tiling.top || tiling.left), |div| {
 8458                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8459                        })
 8460                        .when(!(tiling.bottom || tiling.right), |div| {
 8461                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8462                        })
 8463                        .when(!(tiling.bottom || tiling.left), |div| {
 8464                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8465                        })
 8466                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8467                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8468                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8469                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8470                        .when(!tiling.is_tiled(), |div| {
 8471                            div.shadow(vec![gpui::BoxShadow {
 8472                                color: Hsla {
 8473                                    h: 0.,
 8474                                    s: 0.,
 8475                                    l: 0.,
 8476                                    a: 0.4,
 8477                                },
 8478                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8479                                spread_radius: px(0.),
 8480                                offset: point(px(0.0), px(0.0)),
 8481                            }])
 8482                        }),
 8483                })
 8484                .on_mouse_move(|_e, _, cx| {
 8485                    cx.stop_propagation();
 8486                })
 8487                .size_full()
 8488                .child(element),
 8489        )
 8490        .map(|div| match decorations {
 8491            Decorations::Server => div,
 8492            Decorations::Client { tiling, .. } => div.child(
 8493                canvas(
 8494                    |_bounds, window, _| {
 8495                        window.insert_hitbox(
 8496                            Bounds::new(
 8497                                point(px(0.0), px(0.0)),
 8498                                window.window_bounds().get_bounds().size,
 8499                            ),
 8500                            HitboxBehavior::Normal,
 8501                        )
 8502                    },
 8503                    move |_bounds, hitbox, window, cx| {
 8504                        let mouse = window.mouse_position();
 8505                        let size = window.window_bounds().get_bounds().size;
 8506                        let Some(edge) =
 8507                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8508                        else {
 8509                            return;
 8510                        };
 8511                        cx.set_global(GlobalResizeEdge(edge));
 8512                        window.set_cursor_style(
 8513                            match edge {
 8514                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8515                                ResizeEdge::Left | ResizeEdge::Right => {
 8516                                    CursorStyle::ResizeLeftRight
 8517                                }
 8518                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8519                                    CursorStyle::ResizeUpLeftDownRight
 8520                                }
 8521                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8522                                    CursorStyle::ResizeUpRightDownLeft
 8523                                }
 8524                            },
 8525                            &hitbox,
 8526                        );
 8527                    },
 8528                )
 8529                .size_full()
 8530                .absolute(),
 8531            ),
 8532        })
 8533}
 8534
 8535fn resize_edge(
 8536    pos: Point<Pixels>,
 8537    shadow_size: Pixels,
 8538    window_size: Size<Pixels>,
 8539    tiling: Tiling,
 8540) -> Option<ResizeEdge> {
 8541    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8542    if bounds.contains(&pos) {
 8543        return None;
 8544    }
 8545
 8546    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8547    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8548    if !tiling.top && top_left_bounds.contains(&pos) {
 8549        return Some(ResizeEdge::TopLeft);
 8550    }
 8551
 8552    let top_right_bounds = Bounds::new(
 8553        Point::new(window_size.width - corner_size.width, px(0.)),
 8554        corner_size,
 8555    );
 8556    if !tiling.top && top_right_bounds.contains(&pos) {
 8557        return Some(ResizeEdge::TopRight);
 8558    }
 8559
 8560    let bottom_left_bounds = Bounds::new(
 8561        Point::new(px(0.), window_size.height - corner_size.height),
 8562        corner_size,
 8563    );
 8564    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8565        return Some(ResizeEdge::BottomLeft);
 8566    }
 8567
 8568    let bottom_right_bounds = Bounds::new(
 8569        Point::new(
 8570            window_size.width - corner_size.width,
 8571            window_size.height - corner_size.height,
 8572        ),
 8573        corner_size,
 8574    );
 8575    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8576        return Some(ResizeEdge::BottomRight);
 8577    }
 8578
 8579    if !tiling.top && pos.y < shadow_size {
 8580        Some(ResizeEdge::Top)
 8581    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8582        Some(ResizeEdge::Bottom)
 8583    } else if !tiling.left && pos.x < shadow_size {
 8584        Some(ResizeEdge::Left)
 8585    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8586        Some(ResizeEdge::Right)
 8587    } else {
 8588        None
 8589    }
 8590}
 8591
 8592fn join_pane_into_active(
 8593    active_pane: &Entity<Pane>,
 8594    pane: &Entity<Pane>,
 8595    window: &mut Window,
 8596    cx: &mut App,
 8597) {
 8598    if pane == active_pane {
 8599    } else if pane.read(cx).items_len() == 0 {
 8600        pane.update(cx, |_, cx| {
 8601            cx.emit(pane::Event::Remove {
 8602                focus_on_pane: None,
 8603            });
 8604        })
 8605    } else {
 8606        move_all_items(pane, active_pane, window, cx);
 8607    }
 8608}
 8609
 8610fn move_all_items(
 8611    from_pane: &Entity<Pane>,
 8612    to_pane: &Entity<Pane>,
 8613    window: &mut Window,
 8614    cx: &mut App,
 8615) {
 8616    let destination_is_different = from_pane != to_pane;
 8617    let mut moved_items = 0;
 8618    for (item_ix, item_handle) in from_pane
 8619        .read(cx)
 8620        .items()
 8621        .enumerate()
 8622        .map(|(ix, item)| (ix, item.clone()))
 8623        .collect::<Vec<_>>()
 8624    {
 8625        let ix = item_ix - moved_items;
 8626        if destination_is_different {
 8627            // Close item from previous pane
 8628            from_pane.update(cx, |source, cx| {
 8629                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8630            });
 8631            moved_items += 1;
 8632        }
 8633
 8634        // This automatically removes duplicate items in the pane
 8635        to_pane.update(cx, |destination, cx| {
 8636            destination.add_item(item_handle, true, true, None, window, cx);
 8637            window.focus(&destination.focus_handle(cx))
 8638        });
 8639    }
 8640}
 8641
 8642pub fn move_item(
 8643    source: &Entity<Pane>,
 8644    destination: &Entity<Pane>,
 8645    item_id_to_move: EntityId,
 8646    destination_index: usize,
 8647    activate: bool,
 8648    window: &mut Window,
 8649    cx: &mut App,
 8650) {
 8651    let Some((item_ix, item_handle)) = source
 8652        .read(cx)
 8653        .items()
 8654        .enumerate()
 8655        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8656        .map(|(ix, item)| (ix, item.clone()))
 8657    else {
 8658        // Tab was closed during drag
 8659        return;
 8660    };
 8661
 8662    if source != destination {
 8663        // Close item from previous pane
 8664        source.update(cx, |source, cx| {
 8665            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8666        });
 8667    }
 8668
 8669    // This automatically removes duplicate items in the pane
 8670    destination.update(cx, |destination, cx| {
 8671        destination.add_item_inner(
 8672            item_handle,
 8673            activate,
 8674            activate,
 8675            activate,
 8676            Some(destination_index),
 8677            window,
 8678            cx,
 8679        );
 8680        if activate {
 8681            window.focus(&destination.focus_handle(cx))
 8682        }
 8683    });
 8684}
 8685
 8686pub fn move_active_item(
 8687    source: &Entity<Pane>,
 8688    destination: &Entity<Pane>,
 8689    focus_destination: bool,
 8690    close_if_empty: bool,
 8691    window: &mut Window,
 8692    cx: &mut App,
 8693) {
 8694    if source == destination {
 8695        return;
 8696    }
 8697    let Some(active_item) = source.read(cx).active_item() else {
 8698        return;
 8699    };
 8700    source.update(cx, |source_pane, cx| {
 8701        let item_id = active_item.item_id();
 8702        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8703        destination.update(cx, |target_pane, cx| {
 8704            target_pane.add_item(
 8705                active_item,
 8706                focus_destination,
 8707                focus_destination,
 8708                Some(target_pane.items_len()),
 8709                window,
 8710                cx,
 8711            );
 8712        });
 8713    });
 8714}
 8715
 8716pub fn clone_active_item(
 8717    workspace_id: Option<WorkspaceId>,
 8718    source: &Entity<Pane>,
 8719    destination: &Entity<Pane>,
 8720    focus_destination: bool,
 8721    window: &mut Window,
 8722    cx: &mut App,
 8723) {
 8724    if source == destination {
 8725        return;
 8726    }
 8727    let Some(active_item) = source.read(cx).active_item() else {
 8728        return;
 8729    };
 8730    if !active_item.can_split(cx) {
 8731        return;
 8732    }
 8733    let destination = destination.downgrade();
 8734    let task = active_item.clone_on_split(workspace_id, window, cx);
 8735    window
 8736        .spawn(cx, async move |cx| {
 8737            let Some(clone) = task.await else {
 8738                return;
 8739            };
 8740            destination
 8741                .update_in(cx, |target_pane, window, cx| {
 8742                    target_pane.add_item(
 8743                        clone,
 8744                        focus_destination,
 8745                        focus_destination,
 8746                        Some(target_pane.items_len()),
 8747                        window,
 8748                        cx,
 8749                    );
 8750                })
 8751                .log_err();
 8752        })
 8753        .detach();
 8754}
 8755
 8756#[derive(Debug)]
 8757pub struct WorkspacePosition {
 8758    pub window_bounds: Option<WindowBounds>,
 8759    pub display: Option<Uuid>,
 8760    pub centered_layout: bool,
 8761}
 8762
 8763pub fn remote_workspace_position_from_db(
 8764    connection_options: RemoteConnectionOptions,
 8765    paths_to_open: &[PathBuf],
 8766    cx: &App,
 8767) -> Task<Result<WorkspacePosition>> {
 8768    let paths = paths_to_open.to_vec();
 8769
 8770    cx.background_spawn(async move {
 8771        let remote_connection_id = persistence::DB
 8772            .get_or_create_remote_connection(connection_options)
 8773            .await
 8774            .context("fetching serialized ssh project")?;
 8775        let serialized_workspace =
 8776            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8777
 8778        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8779            (Some(WindowBounds::Windowed(bounds)), None)
 8780        } else {
 8781            let restorable_bounds = serialized_workspace
 8782                .as_ref()
 8783                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8784                .or_else(|| {
 8785                    let (display, window_bounds) = DB.last_window().log_err()?;
 8786                    Some((display?, window_bounds?))
 8787                });
 8788
 8789            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8790                (Some(serialized_status.0), Some(serialized_display))
 8791            } else {
 8792                (None, None)
 8793            }
 8794        };
 8795
 8796        let centered_layout = serialized_workspace
 8797            .as_ref()
 8798            .map(|w| w.centered_layout)
 8799            .unwrap_or(false);
 8800
 8801        Ok(WorkspacePosition {
 8802            window_bounds,
 8803            display,
 8804            centered_layout,
 8805        })
 8806    })
 8807}
 8808
 8809pub fn with_active_or_new_workspace(
 8810    cx: &mut App,
 8811    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8812) {
 8813    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8814        Some(workspace) => {
 8815            cx.defer(move |cx| {
 8816                workspace
 8817                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8818                    .log_err();
 8819            });
 8820        }
 8821        None => {
 8822            let app_state = AppState::global(cx);
 8823            if let Some(app_state) = app_state.upgrade() {
 8824                open_new(
 8825                    OpenOptions::default(),
 8826                    app_state,
 8827                    cx,
 8828                    move |workspace, window, cx| f(workspace, window, cx),
 8829                )
 8830                .detach_and_log_err(cx);
 8831            }
 8832        }
 8833    }
 8834}
 8835
 8836#[cfg(test)]
 8837mod tests {
 8838    use std::{cell::RefCell, rc::Rc};
 8839
 8840    use super::*;
 8841    use crate::{
 8842        dock::{PanelEvent, test::TestPanel},
 8843        item::{
 8844            ItemBufferKind, ItemEvent,
 8845            test::{TestItem, TestProjectItem},
 8846        },
 8847    };
 8848    use fs::FakeFs;
 8849    use gpui::{
 8850        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8851        UpdateGlobal, VisualTestContext, px,
 8852    };
 8853    use project::{Project, ProjectEntryId};
 8854    use serde_json::json;
 8855    use settings::SettingsStore;
 8856    use util::rel_path::rel_path;
 8857
 8858    #[gpui::test]
 8859    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8860        init_test(cx);
 8861
 8862        let fs = FakeFs::new(cx.executor());
 8863        let project = Project::test(fs, [], cx).await;
 8864        let (workspace, cx) =
 8865            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8866
 8867        // Adding an item with no ambiguity renders the tab without detail.
 8868        let item1 = cx.new(|cx| {
 8869            let mut item = TestItem::new(cx);
 8870            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8871            item
 8872        });
 8873        workspace.update_in(cx, |workspace, window, cx| {
 8874            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8875        });
 8876        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8877
 8878        // Adding an item that creates ambiguity increases the level of detail on
 8879        // both tabs.
 8880        let item2 = cx.new_window_entity(|_window, cx| {
 8881            let mut item = TestItem::new(cx);
 8882            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8883            item
 8884        });
 8885        workspace.update_in(cx, |workspace, window, cx| {
 8886            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8887        });
 8888        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8889        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8890
 8891        // Adding an item that creates ambiguity increases the level of detail only
 8892        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8893        // we stop at the highest detail available.
 8894        let item3 = cx.new(|cx| {
 8895            let mut item = TestItem::new(cx);
 8896            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8897            item
 8898        });
 8899        workspace.update_in(cx, |workspace, window, cx| {
 8900            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8901        });
 8902        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8903        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8904        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8905    }
 8906
 8907    #[gpui::test]
 8908    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8909        init_test(cx);
 8910
 8911        let fs = FakeFs::new(cx.executor());
 8912        fs.insert_tree(
 8913            "/root1",
 8914            json!({
 8915                "one.txt": "",
 8916                "two.txt": "",
 8917            }),
 8918        )
 8919        .await;
 8920        fs.insert_tree(
 8921            "/root2",
 8922            json!({
 8923                "three.txt": "",
 8924            }),
 8925        )
 8926        .await;
 8927
 8928        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8929        let (workspace, cx) =
 8930            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8931        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8932        let worktree_id = project.update(cx, |project, cx| {
 8933            project.worktrees(cx).next().unwrap().read(cx).id()
 8934        });
 8935
 8936        let item1 = cx.new(|cx| {
 8937            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8938        });
 8939        let item2 = cx.new(|cx| {
 8940            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8941        });
 8942
 8943        // Add an item to an empty pane
 8944        workspace.update_in(cx, |workspace, window, cx| {
 8945            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8946        });
 8947        project.update(cx, |project, cx| {
 8948            assert_eq!(
 8949                project.active_entry(),
 8950                project
 8951                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8952                    .map(|e| e.id)
 8953            );
 8954        });
 8955        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8956
 8957        // Add a second item to a non-empty pane
 8958        workspace.update_in(cx, |workspace, window, cx| {
 8959            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 8960        });
 8961        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 8962        project.update(cx, |project, cx| {
 8963            assert_eq!(
 8964                project.active_entry(),
 8965                project
 8966                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 8967                    .map(|e| e.id)
 8968            );
 8969        });
 8970
 8971        // Close the active item
 8972        pane.update_in(cx, |pane, window, cx| {
 8973            pane.close_active_item(&Default::default(), window, cx)
 8974        })
 8975        .await
 8976        .unwrap();
 8977        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8978        project.update(cx, |project, cx| {
 8979            assert_eq!(
 8980                project.active_entry(),
 8981                project
 8982                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8983                    .map(|e| e.id)
 8984            );
 8985        });
 8986
 8987        // Add a project folder
 8988        project
 8989            .update(cx, |project, cx| {
 8990                project.find_or_create_worktree("root2", true, cx)
 8991            })
 8992            .await
 8993            .unwrap();
 8994        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 8995
 8996        // Remove a project folder
 8997        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 8998        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 8999    }
 9000
 9001    #[gpui::test]
 9002    async fn test_close_window(cx: &mut TestAppContext) {
 9003        init_test(cx);
 9004
 9005        let fs = FakeFs::new(cx.executor());
 9006        fs.insert_tree("/root", json!({ "one": "" })).await;
 9007
 9008        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9009        let (workspace, cx) =
 9010            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9011
 9012        // When there are no dirty items, there's nothing to do.
 9013        let item1 = cx.new(TestItem::new);
 9014        workspace.update_in(cx, |w, window, cx| {
 9015            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9016        });
 9017        let task = workspace.update_in(cx, |w, window, cx| {
 9018            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9019        });
 9020        assert!(task.await.unwrap());
 9021
 9022        // When there are dirty untitled items, prompt to save each one. If the user
 9023        // cancels any prompt, then abort.
 9024        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9025        let item3 = cx.new(|cx| {
 9026            TestItem::new(cx)
 9027                .with_dirty(true)
 9028                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9029        });
 9030        workspace.update_in(cx, |w, window, cx| {
 9031            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9032            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9033        });
 9034        let task = workspace.update_in(cx, |w, window, cx| {
 9035            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9036        });
 9037        cx.executor().run_until_parked();
 9038        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9039        cx.executor().run_until_parked();
 9040        assert!(!cx.has_pending_prompt());
 9041        assert!(!task.await.unwrap());
 9042    }
 9043
 9044    #[gpui::test]
 9045    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9046        init_test(cx);
 9047
 9048        // Register TestItem as a serializable item
 9049        cx.update(|cx| {
 9050            register_serializable_item::<TestItem>(cx);
 9051        });
 9052
 9053        let fs = FakeFs::new(cx.executor());
 9054        fs.insert_tree("/root", json!({ "one": "" })).await;
 9055
 9056        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9057        let (workspace, cx) =
 9058            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9059
 9060        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9061        let item1 = cx.new(|cx| {
 9062            TestItem::new(cx)
 9063                .with_dirty(true)
 9064                .with_serialize(|| Some(Task::ready(Ok(()))))
 9065        });
 9066        let item2 = cx.new(|cx| {
 9067            TestItem::new(cx)
 9068                .with_dirty(true)
 9069                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9070                .with_serialize(|| Some(Task::ready(Ok(()))))
 9071        });
 9072        workspace.update_in(cx, |w, window, cx| {
 9073            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9074            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9075        });
 9076        let task = workspace.update_in(cx, |w, window, cx| {
 9077            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9078        });
 9079        assert!(task.await.unwrap());
 9080    }
 9081
 9082    #[gpui::test]
 9083    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9084        init_test(cx);
 9085
 9086        let fs = FakeFs::new(cx.executor());
 9087
 9088        let project = Project::test(fs, None, cx).await;
 9089        let (workspace, cx) =
 9090            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9091
 9092        let item1 = cx.new(|cx| {
 9093            TestItem::new(cx)
 9094                .with_dirty(true)
 9095                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9096        });
 9097        let item2 = cx.new(|cx| {
 9098            TestItem::new(cx)
 9099                .with_dirty(true)
 9100                .with_conflict(true)
 9101                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9102        });
 9103        let item3 = cx.new(|cx| {
 9104            TestItem::new(cx)
 9105                .with_dirty(true)
 9106                .with_conflict(true)
 9107                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9108        });
 9109        let item4 = cx.new(|cx| {
 9110            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9111                let project_item = TestProjectItem::new_untitled(cx);
 9112                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9113                project_item
 9114            }])
 9115        });
 9116        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9117            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9118            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9119            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9120            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9121            workspace.active_pane().clone()
 9122        });
 9123
 9124        let close_items = pane.update_in(cx, |pane, window, cx| {
 9125            pane.activate_item(1, true, true, window, cx);
 9126            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9127            let item1_id = item1.item_id();
 9128            let item3_id = item3.item_id();
 9129            let item4_id = item4.item_id();
 9130            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9131                [item1_id, item3_id, item4_id].contains(&id)
 9132            })
 9133        });
 9134        cx.executor().run_until_parked();
 9135
 9136        assert!(cx.has_pending_prompt());
 9137        cx.simulate_prompt_answer("Save all");
 9138
 9139        cx.executor().run_until_parked();
 9140
 9141        // Item 1 is saved. There's a prompt to save item 3.
 9142        pane.update(cx, |pane, cx| {
 9143            assert_eq!(item1.read(cx).save_count, 1);
 9144            assert_eq!(item1.read(cx).save_as_count, 0);
 9145            assert_eq!(item1.read(cx).reload_count, 0);
 9146            assert_eq!(pane.items_len(), 3);
 9147            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9148        });
 9149        assert!(cx.has_pending_prompt());
 9150
 9151        // Cancel saving item 3.
 9152        cx.simulate_prompt_answer("Discard");
 9153        cx.executor().run_until_parked();
 9154
 9155        // Item 3 is reloaded. There's a prompt to save item 4.
 9156        pane.update(cx, |pane, cx| {
 9157            assert_eq!(item3.read(cx).save_count, 0);
 9158            assert_eq!(item3.read(cx).save_as_count, 0);
 9159            assert_eq!(item3.read(cx).reload_count, 1);
 9160            assert_eq!(pane.items_len(), 2);
 9161            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9162        });
 9163
 9164        // There's a prompt for a path for item 4.
 9165        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9166        close_items.await.unwrap();
 9167
 9168        // The requested items are closed.
 9169        pane.update(cx, |pane, cx| {
 9170            assert_eq!(item4.read(cx).save_count, 0);
 9171            assert_eq!(item4.read(cx).save_as_count, 1);
 9172            assert_eq!(item4.read(cx).reload_count, 0);
 9173            assert_eq!(pane.items_len(), 1);
 9174            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9175        });
 9176    }
 9177
 9178    #[gpui::test]
 9179    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9180        init_test(cx);
 9181
 9182        let fs = FakeFs::new(cx.executor());
 9183        let project = Project::test(fs, [], cx).await;
 9184        let (workspace, cx) =
 9185            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9186
 9187        // Create several workspace items with single project entries, and two
 9188        // workspace items with multiple project entries.
 9189        let single_entry_items = (0..=4)
 9190            .map(|project_entry_id| {
 9191                cx.new(|cx| {
 9192                    TestItem::new(cx)
 9193                        .with_dirty(true)
 9194                        .with_project_items(&[dirty_project_item(
 9195                            project_entry_id,
 9196                            &format!("{project_entry_id}.txt"),
 9197                            cx,
 9198                        )])
 9199                })
 9200            })
 9201            .collect::<Vec<_>>();
 9202        let item_2_3 = cx.new(|cx| {
 9203            TestItem::new(cx)
 9204                .with_dirty(true)
 9205                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9206                .with_project_items(&[
 9207                    single_entry_items[2].read(cx).project_items[0].clone(),
 9208                    single_entry_items[3].read(cx).project_items[0].clone(),
 9209                ])
 9210        });
 9211        let item_3_4 = cx.new(|cx| {
 9212            TestItem::new(cx)
 9213                .with_dirty(true)
 9214                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9215                .with_project_items(&[
 9216                    single_entry_items[3].read(cx).project_items[0].clone(),
 9217                    single_entry_items[4].read(cx).project_items[0].clone(),
 9218                ])
 9219        });
 9220
 9221        // Create two panes that contain the following project entries:
 9222        //   left pane:
 9223        //     multi-entry items:   (2, 3)
 9224        //     single-entry items:  0, 2, 3, 4
 9225        //   right pane:
 9226        //     single-entry items:  4, 1
 9227        //     multi-entry items:   (3, 4)
 9228        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9229            let left_pane = workspace.active_pane().clone();
 9230            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9231            workspace.add_item_to_active_pane(
 9232                single_entry_items[0].boxed_clone(),
 9233                None,
 9234                true,
 9235                window,
 9236                cx,
 9237            );
 9238            workspace.add_item_to_active_pane(
 9239                single_entry_items[2].boxed_clone(),
 9240                None,
 9241                true,
 9242                window,
 9243                cx,
 9244            );
 9245            workspace.add_item_to_active_pane(
 9246                single_entry_items[3].boxed_clone(),
 9247                None,
 9248                true,
 9249                window,
 9250                cx,
 9251            );
 9252            workspace.add_item_to_active_pane(
 9253                single_entry_items[4].boxed_clone(),
 9254                None,
 9255                true,
 9256                window,
 9257                cx,
 9258            );
 9259
 9260            let right_pane =
 9261                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9262
 9263            let boxed_clone = single_entry_items[1].boxed_clone();
 9264            let right_pane = window.spawn(cx, async move |cx| {
 9265                right_pane.await.inspect(|right_pane| {
 9266                    right_pane
 9267                        .update_in(cx, |pane, window, cx| {
 9268                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9269                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9270                        })
 9271                        .unwrap();
 9272                })
 9273            });
 9274
 9275            (left_pane, right_pane)
 9276        });
 9277        let right_pane = right_pane.await.unwrap();
 9278        cx.focus(&right_pane);
 9279
 9280        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9281            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9282                .unwrap()
 9283        });
 9284        cx.executor().run_until_parked();
 9285
 9286        let msg = cx.pending_prompt().unwrap().0;
 9287        assert!(msg.contains("1.txt"));
 9288        assert!(!msg.contains("2.txt"));
 9289        assert!(!msg.contains("3.txt"));
 9290        assert!(!msg.contains("4.txt"));
 9291
 9292        cx.simulate_prompt_answer("Cancel");
 9293        close.await;
 9294
 9295        left_pane
 9296            .update_in(cx, |left_pane, window, cx| {
 9297                left_pane.close_item_by_id(
 9298                    single_entry_items[3].entity_id(),
 9299                    SaveIntent::Skip,
 9300                    window,
 9301                    cx,
 9302                )
 9303            })
 9304            .await
 9305            .unwrap();
 9306
 9307        close = right_pane.update_in(cx, |pane, window, cx| {
 9308            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9309                .unwrap()
 9310        });
 9311        cx.executor().run_until_parked();
 9312
 9313        let details = cx.pending_prompt().unwrap().1;
 9314        assert!(details.contains("1.txt"));
 9315        assert!(!details.contains("2.txt"));
 9316        assert!(details.contains("3.txt"));
 9317        // ideally this assertion could be made, but today we can only
 9318        // save whole items not project items, so the orphaned item 3 causes
 9319        // 4 to be saved too.
 9320        // assert!(!details.contains("4.txt"));
 9321
 9322        cx.simulate_prompt_answer("Save all");
 9323
 9324        cx.executor().run_until_parked();
 9325        close.await;
 9326        right_pane.read_with(cx, |pane, _| {
 9327            assert_eq!(pane.items_len(), 0);
 9328        });
 9329    }
 9330
 9331    #[gpui::test]
 9332    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9333        init_test(cx);
 9334
 9335        let fs = FakeFs::new(cx.executor());
 9336        let project = Project::test(fs, [], cx).await;
 9337        let (workspace, cx) =
 9338            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9339        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9340
 9341        let item = cx.new(|cx| {
 9342            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9343        });
 9344        let item_id = item.entity_id();
 9345        workspace.update_in(cx, |workspace, window, cx| {
 9346            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9347        });
 9348
 9349        // Autosave on window change.
 9350        item.update(cx, |item, cx| {
 9351            SettingsStore::update_global(cx, |settings, cx| {
 9352                settings.update_user_settings(cx, |settings| {
 9353                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9354                })
 9355            });
 9356            item.is_dirty = true;
 9357        });
 9358
 9359        // Deactivating the window saves the file.
 9360        cx.deactivate_window();
 9361        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9362
 9363        // Re-activating the window doesn't save the file.
 9364        cx.update(|window, _| window.activate_window());
 9365        cx.executor().run_until_parked();
 9366        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9367
 9368        // Autosave on focus change.
 9369        item.update_in(cx, |item, window, cx| {
 9370            cx.focus_self(window);
 9371            SettingsStore::update_global(cx, |settings, cx| {
 9372                settings.update_user_settings(cx, |settings| {
 9373                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9374                })
 9375            });
 9376            item.is_dirty = true;
 9377        });
 9378        // Blurring the item saves the file.
 9379        item.update_in(cx, |_, window, _| window.blur());
 9380        cx.executor().run_until_parked();
 9381        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9382
 9383        // Deactivating the window still saves the file.
 9384        item.update_in(cx, |item, window, cx| {
 9385            cx.focus_self(window);
 9386            item.is_dirty = true;
 9387        });
 9388        cx.deactivate_window();
 9389        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9390
 9391        // Autosave after delay.
 9392        item.update(cx, |item, cx| {
 9393            SettingsStore::update_global(cx, |settings, cx| {
 9394                settings.update_user_settings(cx, |settings| {
 9395                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9396                        milliseconds: 500.into(),
 9397                    });
 9398                })
 9399            });
 9400            item.is_dirty = true;
 9401            cx.emit(ItemEvent::Edit);
 9402        });
 9403
 9404        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9405        cx.executor().advance_clock(Duration::from_millis(250));
 9406        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9407
 9408        // After delay expires, the file is saved.
 9409        cx.executor().advance_clock(Duration::from_millis(250));
 9410        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9411
 9412        // Autosave after delay, should save earlier than delay if tab is closed
 9413        item.update(cx, |item, cx| {
 9414            item.is_dirty = true;
 9415            cx.emit(ItemEvent::Edit);
 9416        });
 9417        cx.executor().advance_clock(Duration::from_millis(250));
 9418        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9419
 9420        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9421        pane.update_in(cx, |pane, window, cx| {
 9422            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9423        })
 9424        .await
 9425        .unwrap();
 9426        assert!(!cx.has_pending_prompt());
 9427        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9428
 9429        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9430        workspace.update_in(cx, |workspace, window, cx| {
 9431            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9432        });
 9433        item.update_in(cx, |item, _window, cx| {
 9434            item.is_dirty = true;
 9435            for project_item in &mut item.project_items {
 9436                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9437            }
 9438        });
 9439        cx.run_until_parked();
 9440        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9441
 9442        // Autosave on focus change, ensuring closing the tab counts as such.
 9443        item.update(cx, |item, cx| {
 9444            SettingsStore::update_global(cx, |settings, cx| {
 9445                settings.update_user_settings(cx, |settings| {
 9446                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9447                })
 9448            });
 9449            item.is_dirty = true;
 9450            for project_item in &mut item.project_items {
 9451                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9452            }
 9453        });
 9454
 9455        pane.update_in(cx, |pane, window, cx| {
 9456            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9457        })
 9458        .await
 9459        .unwrap();
 9460        assert!(!cx.has_pending_prompt());
 9461        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9462
 9463        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9464        workspace.update_in(cx, |workspace, window, cx| {
 9465            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9466        });
 9467        item.update_in(cx, |item, window, cx| {
 9468            item.project_items[0].update(cx, |item, _| {
 9469                item.entry_id = None;
 9470            });
 9471            item.is_dirty = true;
 9472            window.blur();
 9473        });
 9474        cx.run_until_parked();
 9475        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9476
 9477        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9478        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9479            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9480        });
 9481        cx.run_until_parked();
 9482        assert!(cx.has_pending_prompt());
 9483        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9484    }
 9485
 9486    #[gpui::test]
 9487    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9488        init_test(cx);
 9489
 9490        let fs = FakeFs::new(cx.executor());
 9491
 9492        let project = Project::test(fs, [], cx).await;
 9493        let (workspace, cx) =
 9494            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9495
 9496        let item = cx.new(|cx| {
 9497            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9498        });
 9499        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9500        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9501        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9502
 9503        workspace.update_in(cx, |workspace, window, cx| {
 9504            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9505            let toolbar_notification_count = toolbar_notify_count.clone();
 9506            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9507                *toolbar_notification_count.borrow_mut() += 1
 9508            })
 9509            .detach();
 9510        });
 9511
 9512        pane.read_with(cx, |pane, _| {
 9513            assert!(!pane.can_navigate_backward());
 9514            assert!(!pane.can_navigate_forward());
 9515        });
 9516
 9517        item.update_in(cx, |item, _, cx| {
 9518            item.set_state("one".to_string(), cx);
 9519        });
 9520
 9521        // Toolbar must be notified to re-render the navigation buttons
 9522        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9523
 9524        pane.read_with(cx, |pane, _| {
 9525            assert!(pane.can_navigate_backward());
 9526            assert!(!pane.can_navigate_forward());
 9527        });
 9528
 9529        workspace
 9530            .update_in(cx, |workspace, window, cx| {
 9531                workspace.go_back(pane.downgrade(), window, cx)
 9532            })
 9533            .await
 9534            .unwrap();
 9535
 9536        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9537        pane.read_with(cx, |pane, _| {
 9538            assert!(!pane.can_navigate_backward());
 9539            assert!(pane.can_navigate_forward());
 9540        });
 9541    }
 9542
 9543    #[gpui::test]
 9544    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9545        init_test(cx);
 9546        let fs = FakeFs::new(cx.executor());
 9547
 9548        let project = Project::test(fs, [], cx).await;
 9549        let (workspace, cx) =
 9550            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9551
 9552        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9553            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9554            workspace.add_panel(panel.clone(), window, cx);
 9555
 9556            workspace
 9557                .right_dock()
 9558                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9559
 9560            panel
 9561        });
 9562
 9563        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9564        pane.update_in(cx, |pane, window, cx| {
 9565            let item = cx.new(TestItem::new);
 9566            pane.add_item(Box::new(item), true, true, None, window, cx);
 9567        });
 9568
 9569        // Transfer focus from center to panel
 9570        workspace.update_in(cx, |workspace, window, cx| {
 9571            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9572        });
 9573
 9574        workspace.update_in(cx, |workspace, window, cx| {
 9575            assert!(workspace.right_dock().read(cx).is_open());
 9576            assert!(!panel.is_zoomed(window, cx));
 9577            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9578        });
 9579
 9580        // Transfer focus from panel to center
 9581        workspace.update_in(cx, |workspace, window, cx| {
 9582            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9583        });
 9584
 9585        workspace.update_in(cx, |workspace, window, cx| {
 9586            assert!(workspace.right_dock().read(cx).is_open());
 9587            assert!(!panel.is_zoomed(window, cx));
 9588            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9589        });
 9590
 9591        // Close the dock
 9592        workspace.update_in(cx, |workspace, window, cx| {
 9593            workspace.toggle_dock(DockPosition::Right, window, cx);
 9594        });
 9595
 9596        workspace.update_in(cx, |workspace, window, cx| {
 9597            assert!(!workspace.right_dock().read(cx).is_open());
 9598            assert!(!panel.is_zoomed(window, cx));
 9599            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9600        });
 9601
 9602        // Open the dock
 9603        workspace.update_in(cx, |workspace, window, cx| {
 9604            workspace.toggle_dock(DockPosition::Right, window, cx);
 9605        });
 9606
 9607        workspace.update_in(cx, |workspace, window, cx| {
 9608            assert!(workspace.right_dock().read(cx).is_open());
 9609            assert!(!panel.is_zoomed(window, cx));
 9610            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9611        });
 9612
 9613        // Focus and zoom panel
 9614        panel.update_in(cx, |panel, window, cx| {
 9615            cx.focus_self(window);
 9616            panel.set_zoomed(true, window, cx)
 9617        });
 9618
 9619        workspace.update_in(cx, |workspace, window, cx| {
 9620            assert!(workspace.right_dock().read(cx).is_open());
 9621            assert!(panel.is_zoomed(window, cx));
 9622            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9623        });
 9624
 9625        // Transfer focus to the center closes the dock
 9626        workspace.update_in(cx, |workspace, window, cx| {
 9627            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9628        });
 9629
 9630        workspace.update_in(cx, |workspace, window, cx| {
 9631            assert!(!workspace.right_dock().read(cx).is_open());
 9632            assert!(panel.is_zoomed(window, cx));
 9633            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9634        });
 9635
 9636        // Transferring focus back to the panel keeps it zoomed
 9637        workspace.update_in(cx, |workspace, window, cx| {
 9638            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9639        });
 9640
 9641        workspace.update_in(cx, |workspace, window, cx| {
 9642            assert!(workspace.right_dock().read(cx).is_open());
 9643            assert!(panel.is_zoomed(window, cx));
 9644            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9645        });
 9646
 9647        // Close the dock while it is zoomed
 9648        workspace.update_in(cx, |workspace, window, cx| {
 9649            workspace.toggle_dock(DockPosition::Right, window, cx)
 9650        });
 9651
 9652        workspace.update_in(cx, |workspace, window, cx| {
 9653            assert!(!workspace.right_dock().read(cx).is_open());
 9654            assert!(panel.is_zoomed(window, cx));
 9655            assert!(workspace.zoomed.is_none());
 9656            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9657        });
 9658
 9659        // Opening the dock, when it's zoomed, retains focus
 9660        workspace.update_in(cx, |workspace, window, cx| {
 9661            workspace.toggle_dock(DockPosition::Right, window, cx)
 9662        });
 9663
 9664        workspace.update_in(cx, |workspace, window, cx| {
 9665            assert!(workspace.right_dock().read(cx).is_open());
 9666            assert!(panel.is_zoomed(window, cx));
 9667            assert!(workspace.zoomed.is_some());
 9668            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9669        });
 9670
 9671        // Unzoom and close the panel, zoom the active pane.
 9672        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9673        workspace.update_in(cx, |workspace, window, cx| {
 9674            workspace.toggle_dock(DockPosition::Right, window, cx)
 9675        });
 9676        pane.update_in(cx, |pane, window, cx| {
 9677            pane.toggle_zoom(&Default::default(), window, cx)
 9678        });
 9679
 9680        // Opening a dock unzooms the pane.
 9681        workspace.update_in(cx, |workspace, window, cx| {
 9682            workspace.toggle_dock(DockPosition::Right, window, cx)
 9683        });
 9684        workspace.update_in(cx, |workspace, window, cx| {
 9685            let pane = pane.read(cx);
 9686            assert!(!pane.is_zoomed());
 9687            assert!(!pane.focus_handle(cx).is_focused(window));
 9688            assert!(workspace.right_dock().read(cx).is_open());
 9689            assert!(workspace.zoomed.is_none());
 9690        });
 9691    }
 9692
 9693    #[gpui::test]
 9694    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9695        init_test(cx);
 9696        let fs = FakeFs::new(cx.executor());
 9697
 9698        let project = Project::test(fs, [], cx).await;
 9699        let (workspace, cx) =
 9700            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9701
 9702        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9703            workspace.active_pane().clone()
 9704        });
 9705
 9706        // Add an item to the pane so it can be zoomed
 9707        workspace.update_in(cx, |workspace, window, cx| {
 9708            let item = cx.new(TestItem::new);
 9709            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9710        });
 9711
 9712        // Initially not zoomed
 9713        workspace.update_in(cx, |workspace, _window, cx| {
 9714            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9715            assert!(
 9716                workspace.zoomed.is_none(),
 9717                "Workspace should track no zoomed pane"
 9718            );
 9719            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9720        });
 9721
 9722        // Zoom In
 9723        pane.update_in(cx, |pane, window, cx| {
 9724            pane.zoom_in(&crate::ZoomIn, window, cx);
 9725        });
 9726
 9727        workspace.update_in(cx, |workspace, window, cx| {
 9728            assert!(
 9729                pane.read(cx).is_zoomed(),
 9730                "Pane should be zoomed after ZoomIn"
 9731            );
 9732            assert!(
 9733                workspace.zoomed.is_some(),
 9734                "Workspace should track the zoomed pane"
 9735            );
 9736            assert!(
 9737                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9738                "ZoomIn should focus the pane"
 9739            );
 9740        });
 9741
 9742        // Zoom In again is a no-op
 9743        pane.update_in(cx, |pane, window, cx| {
 9744            pane.zoom_in(&crate::ZoomIn, window, cx);
 9745        });
 9746
 9747        workspace.update_in(cx, |workspace, window, cx| {
 9748            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9749            assert!(
 9750                workspace.zoomed.is_some(),
 9751                "Workspace still tracks zoomed pane"
 9752            );
 9753            assert!(
 9754                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9755                "Pane remains focused after repeated ZoomIn"
 9756            );
 9757        });
 9758
 9759        // Zoom Out
 9760        pane.update_in(cx, |pane, window, cx| {
 9761            pane.zoom_out(&crate::ZoomOut, window, cx);
 9762        });
 9763
 9764        workspace.update_in(cx, |workspace, _window, cx| {
 9765            assert!(
 9766                !pane.read(cx).is_zoomed(),
 9767                "Pane should unzoom after ZoomOut"
 9768            );
 9769            assert!(
 9770                workspace.zoomed.is_none(),
 9771                "Workspace clears zoom tracking after ZoomOut"
 9772            );
 9773        });
 9774
 9775        // Zoom Out again is a no-op
 9776        pane.update_in(cx, |pane, window, cx| {
 9777            pane.zoom_out(&crate::ZoomOut, window, cx);
 9778        });
 9779
 9780        workspace.update_in(cx, |workspace, _window, cx| {
 9781            assert!(
 9782                !pane.read(cx).is_zoomed(),
 9783                "Second ZoomOut keeps pane unzoomed"
 9784            );
 9785            assert!(
 9786                workspace.zoomed.is_none(),
 9787                "Workspace remains without zoomed pane"
 9788            );
 9789        });
 9790    }
 9791
 9792    #[gpui::test]
 9793    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9794        init_test(cx);
 9795        let fs = FakeFs::new(cx.executor());
 9796
 9797        let project = Project::test(fs, [], cx).await;
 9798        let (workspace, cx) =
 9799            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9800        workspace.update_in(cx, |workspace, window, cx| {
 9801            // Open two docks
 9802            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9803            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9804
 9805            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9806            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9807
 9808            assert!(left_dock.read(cx).is_open());
 9809            assert!(right_dock.read(cx).is_open());
 9810        });
 9811
 9812        workspace.update_in(cx, |workspace, window, cx| {
 9813            // Toggle all docks - should close both
 9814            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9815
 9816            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9817            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9818            assert!(!left_dock.read(cx).is_open());
 9819            assert!(!right_dock.read(cx).is_open());
 9820        });
 9821
 9822        workspace.update_in(cx, |workspace, window, cx| {
 9823            // Toggle again - should reopen both
 9824            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9825
 9826            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9827            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9828            assert!(left_dock.read(cx).is_open());
 9829            assert!(right_dock.read(cx).is_open());
 9830        });
 9831    }
 9832
 9833    #[gpui::test]
 9834    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9835        init_test(cx);
 9836        let fs = FakeFs::new(cx.executor());
 9837
 9838        let project = Project::test(fs, [], cx).await;
 9839        let (workspace, cx) =
 9840            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9841        workspace.update_in(cx, |workspace, window, cx| {
 9842            // Open two docks
 9843            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9844            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9845
 9846            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9847            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9848
 9849            assert!(left_dock.read(cx).is_open());
 9850            assert!(right_dock.read(cx).is_open());
 9851        });
 9852
 9853        workspace.update_in(cx, |workspace, window, cx| {
 9854            // Close them manually
 9855            workspace.toggle_dock(DockPosition::Left, window, cx);
 9856            workspace.toggle_dock(DockPosition::Right, window, cx);
 9857
 9858            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9859            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9860            assert!(!left_dock.read(cx).is_open());
 9861            assert!(!right_dock.read(cx).is_open());
 9862        });
 9863
 9864        workspace.update_in(cx, |workspace, window, cx| {
 9865            // Toggle all docks - only last closed (right dock) should reopen
 9866            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9867
 9868            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9869            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9870            assert!(!left_dock.read(cx).is_open());
 9871            assert!(right_dock.read(cx).is_open());
 9872        });
 9873    }
 9874
 9875    #[gpui::test]
 9876    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9877        init_test(cx);
 9878        let fs = FakeFs::new(cx.executor());
 9879        let project = Project::test(fs, [], cx).await;
 9880        let (workspace, cx) =
 9881            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9882
 9883        // Open two docks (left and right) with one panel each
 9884        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9885            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9886            workspace.add_panel(left_panel.clone(), window, cx);
 9887
 9888            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9889            workspace.add_panel(right_panel.clone(), window, cx);
 9890
 9891            workspace.toggle_dock(DockPosition::Left, window, cx);
 9892            workspace.toggle_dock(DockPosition::Right, window, cx);
 9893
 9894            // Verify initial state
 9895            assert!(
 9896                workspace.left_dock().read(cx).is_open(),
 9897                "Left dock should be open"
 9898            );
 9899            assert_eq!(
 9900                workspace
 9901                    .left_dock()
 9902                    .read(cx)
 9903                    .visible_panel()
 9904                    .unwrap()
 9905                    .panel_id(),
 9906                left_panel.panel_id(),
 9907                "Left panel should be visible in left dock"
 9908            );
 9909            assert!(
 9910                workspace.right_dock().read(cx).is_open(),
 9911                "Right dock should be open"
 9912            );
 9913            assert_eq!(
 9914                workspace
 9915                    .right_dock()
 9916                    .read(cx)
 9917                    .visible_panel()
 9918                    .unwrap()
 9919                    .panel_id(),
 9920                right_panel.panel_id(),
 9921                "Right panel should be visible in right dock"
 9922            );
 9923            assert!(
 9924                !workspace.bottom_dock().read(cx).is_open(),
 9925                "Bottom dock should be closed"
 9926            );
 9927
 9928            (left_panel, right_panel)
 9929        });
 9930
 9931        // Focus the left panel and move it to the next position (bottom dock)
 9932        workspace.update_in(cx, |workspace, window, cx| {
 9933            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9934            assert!(
 9935                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9936                "Left panel should be focused"
 9937            );
 9938        });
 9939
 9940        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9941
 9942        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9943        workspace.update(cx, |workspace, cx| {
 9944            assert!(
 9945                !workspace.left_dock().read(cx).is_open(),
 9946                "Left dock should be closed"
 9947            );
 9948            assert!(
 9949                workspace.bottom_dock().read(cx).is_open(),
 9950                "Bottom dock should now be open"
 9951            );
 9952            assert_eq!(
 9953                left_panel.read(cx).position,
 9954                DockPosition::Bottom,
 9955                "Left panel should now be in the bottom dock"
 9956            );
 9957            assert_eq!(
 9958                workspace
 9959                    .bottom_dock()
 9960                    .read(cx)
 9961                    .visible_panel()
 9962                    .unwrap()
 9963                    .panel_id(),
 9964                left_panel.panel_id(),
 9965                "Left panel should be the visible panel in the bottom dock"
 9966            );
 9967        });
 9968
 9969        // Toggle all docks off
 9970        workspace.update_in(cx, |workspace, window, cx| {
 9971            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9972            assert!(
 9973                !workspace.left_dock().read(cx).is_open(),
 9974                "Left dock should be closed"
 9975            );
 9976            assert!(
 9977                !workspace.right_dock().read(cx).is_open(),
 9978                "Right dock should be closed"
 9979            );
 9980            assert!(
 9981                !workspace.bottom_dock().read(cx).is_open(),
 9982                "Bottom dock should be closed"
 9983            );
 9984        });
 9985
 9986        // Toggle all docks back on and verify positions are restored
 9987        workspace.update_in(cx, |workspace, window, cx| {
 9988            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9989            assert!(
 9990                !workspace.left_dock().read(cx).is_open(),
 9991                "Left dock should remain closed"
 9992            );
 9993            assert!(
 9994                workspace.right_dock().read(cx).is_open(),
 9995                "Right dock should remain open"
 9996            );
 9997            assert!(
 9998                workspace.bottom_dock().read(cx).is_open(),
 9999                "Bottom dock should remain open"
10000            );
10001            assert_eq!(
10002                left_panel.read(cx).position,
10003                DockPosition::Bottom,
10004                "Left panel should remain in the bottom dock"
10005            );
10006            assert_eq!(
10007                right_panel.read(cx).position,
10008                DockPosition::Right,
10009                "Right panel should remain in the right dock"
10010            );
10011            assert_eq!(
10012                workspace
10013                    .bottom_dock()
10014                    .read(cx)
10015                    .visible_panel()
10016                    .unwrap()
10017                    .panel_id(),
10018                left_panel.panel_id(),
10019                "Left panel should be the visible panel in the right dock"
10020            );
10021        });
10022    }
10023
10024    #[gpui::test]
10025    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10026        init_test(cx);
10027
10028        let fs = FakeFs::new(cx.executor());
10029
10030        let project = Project::test(fs, None, cx).await;
10031        let (workspace, cx) =
10032            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10033
10034        // Let's arrange the panes like this:
10035        //
10036        // +-----------------------+
10037        // |         top           |
10038        // +------+--------+-------+
10039        // | left | center | right |
10040        // +------+--------+-------+
10041        // |        bottom         |
10042        // +-----------------------+
10043
10044        let top_item = cx.new(|cx| {
10045            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10046        });
10047        let bottom_item = cx.new(|cx| {
10048            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10049        });
10050        let left_item = cx.new(|cx| {
10051            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10052        });
10053        let right_item = cx.new(|cx| {
10054            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10055        });
10056        let center_item = cx.new(|cx| {
10057            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10058        });
10059
10060        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10061            let top_pane_id = workspace.active_pane().entity_id();
10062            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10063            workspace.split_pane(
10064                workspace.active_pane().clone(),
10065                SplitDirection::Down,
10066                window,
10067                cx,
10068            );
10069            top_pane_id
10070        });
10071        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10072            let bottom_pane_id = workspace.active_pane().entity_id();
10073            workspace.add_item_to_active_pane(
10074                Box::new(bottom_item.clone()),
10075                None,
10076                false,
10077                window,
10078                cx,
10079            );
10080            workspace.split_pane(
10081                workspace.active_pane().clone(),
10082                SplitDirection::Up,
10083                window,
10084                cx,
10085            );
10086            bottom_pane_id
10087        });
10088        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10089            let left_pane_id = workspace.active_pane().entity_id();
10090            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10091            workspace.split_pane(
10092                workspace.active_pane().clone(),
10093                SplitDirection::Right,
10094                window,
10095                cx,
10096            );
10097            left_pane_id
10098        });
10099        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10100            let right_pane_id = workspace.active_pane().entity_id();
10101            workspace.add_item_to_active_pane(
10102                Box::new(right_item.clone()),
10103                None,
10104                false,
10105                window,
10106                cx,
10107            );
10108            workspace.split_pane(
10109                workspace.active_pane().clone(),
10110                SplitDirection::Left,
10111                window,
10112                cx,
10113            );
10114            right_pane_id
10115        });
10116        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10117            let center_pane_id = workspace.active_pane().entity_id();
10118            workspace.add_item_to_active_pane(
10119                Box::new(center_item.clone()),
10120                None,
10121                false,
10122                window,
10123                cx,
10124            );
10125            center_pane_id
10126        });
10127        cx.executor().run_until_parked();
10128
10129        workspace.update_in(cx, |workspace, window, cx| {
10130            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10131
10132            // Join into next from center pane into right
10133            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10134        });
10135
10136        workspace.update_in(cx, |workspace, window, cx| {
10137            let active_pane = workspace.active_pane();
10138            assert_eq!(right_pane_id, active_pane.entity_id());
10139            assert_eq!(2, active_pane.read(cx).items_len());
10140            let item_ids_in_pane =
10141                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10142            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10143            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10144
10145            // Join into next from right pane into bottom
10146            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10147        });
10148
10149        workspace.update_in(cx, |workspace, window, cx| {
10150            let active_pane = workspace.active_pane();
10151            assert_eq!(bottom_pane_id, active_pane.entity_id());
10152            assert_eq!(3, active_pane.read(cx).items_len());
10153            let item_ids_in_pane =
10154                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10155            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10156            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10157            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10158
10159            // Join into next from bottom pane into left
10160            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10161        });
10162
10163        workspace.update_in(cx, |workspace, window, cx| {
10164            let active_pane = workspace.active_pane();
10165            assert_eq!(left_pane_id, active_pane.entity_id());
10166            assert_eq!(4, active_pane.read(cx).items_len());
10167            let item_ids_in_pane =
10168                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10169            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10170            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10171            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10172            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10173
10174            // Join into next from left pane into top
10175            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10176        });
10177
10178        workspace.update_in(cx, |workspace, window, cx| {
10179            let active_pane = workspace.active_pane();
10180            assert_eq!(top_pane_id, active_pane.entity_id());
10181            assert_eq!(5, active_pane.read(cx).items_len());
10182            let item_ids_in_pane =
10183                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10184            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10185            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10186            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10187            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10188            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10189
10190            // Single pane left: no-op
10191            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10192        });
10193
10194        workspace.update(cx, |workspace, _cx| {
10195            let active_pane = workspace.active_pane();
10196            assert_eq!(top_pane_id, active_pane.entity_id());
10197        });
10198    }
10199
10200    fn add_an_item_to_active_pane(
10201        cx: &mut VisualTestContext,
10202        workspace: &Entity<Workspace>,
10203        item_id: u64,
10204    ) -> Entity<TestItem> {
10205        let item = cx.new(|cx| {
10206            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10207                item_id,
10208                "item{item_id}.txt",
10209                cx,
10210            )])
10211        });
10212        workspace.update_in(cx, |workspace, window, cx| {
10213            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10214        });
10215        item
10216    }
10217
10218    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10219        workspace.update_in(cx, |workspace, window, cx| {
10220            workspace.split_pane(
10221                workspace.active_pane().clone(),
10222                SplitDirection::Right,
10223                window,
10224                cx,
10225            )
10226        })
10227    }
10228
10229    #[gpui::test]
10230    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10231        init_test(cx);
10232        let fs = FakeFs::new(cx.executor());
10233        let project = Project::test(fs, None, cx).await;
10234        let (workspace, cx) =
10235            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10236
10237        add_an_item_to_active_pane(cx, &workspace, 1);
10238        split_pane(cx, &workspace);
10239        add_an_item_to_active_pane(cx, &workspace, 2);
10240        split_pane(cx, &workspace); // empty pane
10241        split_pane(cx, &workspace);
10242        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10243
10244        cx.executor().run_until_parked();
10245
10246        workspace.update(cx, |workspace, cx| {
10247            let num_panes = workspace.panes().len();
10248            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10249            let active_item = workspace
10250                .active_pane()
10251                .read(cx)
10252                .active_item()
10253                .expect("item is in focus");
10254
10255            assert_eq!(num_panes, 4);
10256            assert_eq!(num_items_in_current_pane, 1);
10257            assert_eq!(active_item.item_id(), last_item.item_id());
10258        });
10259
10260        workspace.update_in(cx, |workspace, window, cx| {
10261            workspace.join_all_panes(window, cx);
10262        });
10263
10264        workspace.update(cx, |workspace, cx| {
10265            let num_panes = workspace.panes().len();
10266            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10267            let active_item = workspace
10268                .active_pane()
10269                .read(cx)
10270                .active_item()
10271                .expect("item is in focus");
10272
10273            assert_eq!(num_panes, 1);
10274            assert_eq!(num_items_in_current_pane, 3);
10275            assert_eq!(active_item.item_id(), last_item.item_id());
10276        });
10277    }
10278    struct TestModal(FocusHandle);
10279
10280    impl TestModal {
10281        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10282            Self(cx.focus_handle())
10283        }
10284    }
10285
10286    impl EventEmitter<DismissEvent> for TestModal {}
10287
10288    impl Focusable for TestModal {
10289        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10290            self.0.clone()
10291        }
10292    }
10293
10294    impl ModalView for TestModal {}
10295
10296    impl Render for TestModal {
10297        fn render(
10298            &mut self,
10299            _window: &mut Window,
10300            _cx: &mut Context<TestModal>,
10301        ) -> impl IntoElement {
10302            div().track_focus(&self.0)
10303        }
10304    }
10305
10306    #[gpui::test]
10307    async fn test_panels(cx: &mut gpui::TestAppContext) {
10308        init_test(cx);
10309        let fs = FakeFs::new(cx.executor());
10310
10311        let project = Project::test(fs, [], cx).await;
10312        let (workspace, cx) =
10313            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10314
10315        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10316            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10317            workspace.add_panel(panel_1.clone(), window, cx);
10318            workspace.toggle_dock(DockPosition::Left, window, cx);
10319            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10320            workspace.add_panel(panel_2.clone(), window, cx);
10321            workspace.toggle_dock(DockPosition::Right, window, cx);
10322
10323            let left_dock = workspace.left_dock();
10324            assert_eq!(
10325                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10326                panel_1.panel_id()
10327            );
10328            assert_eq!(
10329                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10330                panel_1.size(window, cx)
10331            );
10332
10333            left_dock.update(cx, |left_dock, cx| {
10334                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10335            });
10336            assert_eq!(
10337                workspace
10338                    .right_dock()
10339                    .read(cx)
10340                    .visible_panel()
10341                    .unwrap()
10342                    .panel_id(),
10343                panel_2.panel_id(),
10344            );
10345
10346            (panel_1, panel_2)
10347        });
10348
10349        // Move panel_1 to the right
10350        panel_1.update_in(cx, |panel_1, window, cx| {
10351            panel_1.set_position(DockPosition::Right, window, cx)
10352        });
10353
10354        workspace.update_in(cx, |workspace, window, cx| {
10355            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10356            // Since it was the only panel on the left, the left dock should now be closed.
10357            assert!(!workspace.left_dock().read(cx).is_open());
10358            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10359            let right_dock = workspace.right_dock();
10360            assert_eq!(
10361                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10362                panel_1.panel_id()
10363            );
10364            assert_eq!(
10365                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10366                px(1337.)
10367            );
10368
10369            // Now we move panel_2 to the left
10370            panel_2.set_position(DockPosition::Left, window, cx);
10371        });
10372
10373        workspace.update(cx, |workspace, cx| {
10374            // Since panel_2 was not visible on the right, we don't open the left dock.
10375            assert!(!workspace.left_dock().read(cx).is_open());
10376            // And the right dock is unaffected in its displaying of panel_1
10377            assert!(workspace.right_dock().read(cx).is_open());
10378            assert_eq!(
10379                workspace
10380                    .right_dock()
10381                    .read(cx)
10382                    .visible_panel()
10383                    .unwrap()
10384                    .panel_id(),
10385                panel_1.panel_id(),
10386            );
10387        });
10388
10389        // Move panel_1 back to the left
10390        panel_1.update_in(cx, |panel_1, window, cx| {
10391            panel_1.set_position(DockPosition::Left, window, cx)
10392        });
10393
10394        workspace.update_in(cx, |workspace, window, cx| {
10395            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10396            let left_dock = workspace.left_dock();
10397            assert!(left_dock.read(cx).is_open());
10398            assert_eq!(
10399                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10400                panel_1.panel_id()
10401            );
10402            assert_eq!(
10403                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10404                px(1337.)
10405            );
10406            // And the right dock should be closed as it no longer has any panels.
10407            assert!(!workspace.right_dock().read(cx).is_open());
10408
10409            // Now we move panel_1 to the bottom
10410            panel_1.set_position(DockPosition::Bottom, window, cx);
10411        });
10412
10413        workspace.update_in(cx, |workspace, window, cx| {
10414            // Since panel_1 was visible on the left, we close the left dock.
10415            assert!(!workspace.left_dock().read(cx).is_open());
10416            // The bottom dock is sized based on the panel's default size,
10417            // since the panel orientation changed from vertical to horizontal.
10418            let bottom_dock = workspace.bottom_dock();
10419            assert_eq!(
10420                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10421                panel_1.size(window, cx),
10422            );
10423            // Close bottom dock and move panel_1 back to the left.
10424            bottom_dock.update(cx, |bottom_dock, cx| {
10425                bottom_dock.set_open(false, window, cx)
10426            });
10427            panel_1.set_position(DockPosition::Left, window, cx);
10428        });
10429
10430        // Emit activated event on panel 1
10431        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10432
10433        // Now the left dock is open and panel_1 is active and focused.
10434        workspace.update_in(cx, |workspace, window, cx| {
10435            let left_dock = workspace.left_dock();
10436            assert!(left_dock.read(cx).is_open());
10437            assert_eq!(
10438                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10439                panel_1.panel_id(),
10440            );
10441            assert!(panel_1.focus_handle(cx).is_focused(window));
10442        });
10443
10444        // Emit closed event on panel 2, which is not active
10445        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10446
10447        // Wo don't close the left dock, because panel_2 wasn't the active panel
10448        workspace.update(cx, |workspace, cx| {
10449            let left_dock = workspace.left_dock();
10450            assert!(left_dock.read(cx).is_open());
10451            assert_eq!(
10452                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10453                panel_1.panel_id(),
10454            );
10455        });
10456
10457        // Emitting a ZoomIn event shows the panel as zoomed.
10458        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10459        workspace.read_with(cx, |workspace, _| {
10460            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10461            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10462        });
10463
10464        // Move panel to another dock while it is zoomed
10465        panel_1.update_in(cx, |panel, window, cx| {
10466            panel.set_position(DockPosition::Right, window, cx)
10467        });
10468        workspace.read_with(cx, |workspace, _| {
10469            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10470
10471            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10472        });
10473
10474        // This is a helper for getting a:
10475        // - valid focus on an element,
10476        // - that isn't a part of the panes and panels system of the Workspace,
10477        // - and doesn't trigger the 'on_focus_lost' API.
10478        let focus_other_view = {
10479            let workspace = workspace.clone();
10480            move |cx: &mut VisualTestContext| {
10481                workspace.update_in(cx, |workspace, window, cx| {
10482                    if workspace.active_modal::<TestModal>(cx).is_some() {
10483                        workspace.toggle_modal(window, cx, TestModal::new);
10484                        workspace.toggle_modal(window, cx, TestModal::new);
10485                    } else {
10486                        workspace.toggle_modal(window, cx, TestModal::new);
10487                    }
10488                })
10489            }
10490        };
10491
10492        // If focus is transferred to another view that's not a panel or another pane, we still show
10493        // the panel as zoomed.
10494        focus_other_view(cx);
10495        workspace.read_with(cx, |workspace, _| {
10496            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10497            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10498        });
10499
10500        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10501        workspace.update_in(cx, |_workspace, window, cx| {
10502            cx.focus_self(window);
10503        });
10504        workspace.read_with(cx, |workspace, _| {
10505            assert_eq!(workspace.zoomed, None);
10506            assert_eq!(workspace.zoomed_position, None);
10507        });
10508
10509        // If focus is transferred again to another view that's not a panel or a pane, we won't
10510        // show the panel as zoomed because it wasn't zoomed before.
10511        focus_other_view(cx);
10512        workspace.read_with(cx, |workspace, _| {
10513            assert_eq!(workspace.zoomed, None);
10514            assert_eq!(workspace.zoomed_position, None);
10515        });
10516
10517        // When the panel is activated, it is zoomed again.
10518        cx.dispatch_action(ToggleRightDock);
10519        workspace.read_with(cx, |workspace, _| {
10520            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10521            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10522        });
10523
10524        // Emitting a ZoomOut event unzooms the panel.
10525        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10526        workspace.read_with(cx, |workspace, _| {
10527            assert_eq!(workspace.zoomed, None);
10528            assert_eq!(workspace.zoomed_position, None);
10529        });
10530
10531        // Emit closed event on panel 1, which is active
10532        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10533
10534        // Now the left dock is closed, because panel_1 was the active panel
10535        workspace.update(cx, |workspace, cx| {
10536            let right_dock = workspace.right_dock();
10537            assert!(!right_dock.read(cx).is_open());
10538        });
10539    }
10540
10541    #[gpui::test]
10542    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10543        init_test(cx);
10544
10545        let fs = FakeFs::new(cx.background_executor.clone());
10546        let project = Project::test(fs, [], cx).await;
10547        let (workspace, cx) =
10548            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10549        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10550
10551        let dirty_regular_buffer = cx.new(|cx| {
10552            TestItem::new(cx)
10553                .with_dirty(true)
10554                .with_label("1.txt")
10555                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10556        });
10557        let dirty_regular_buffer_2 = cx.new(|cx| {
10558            TestItem::new(cx)
10559                .with_dirty(true)
10560                .with_label("2.txt")
10561                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10562        });
10563        let dirty_multi_buffer_with_both = cx.new(|cx| {
10564            TestItem::new(cx)
10565                .with_dirty(true)
10566                .with_buffer_kind(ItemBufferKind::Multibuffer)
10567                .with_label("Fake Project Search")
10568                .with_project_items(&[
10569                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10570                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10571                ])
10572        });
10573        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10574        workspace.update_in(cx, |workspace, window, cx| {
10575            workspace.add_item(
10576                pane.clone(),
10577                Box::new(dirty_regular_buffer.clone()),
10578                None,
10579                false,
10580                false,
10581                window,
10582                cx,
10583            );
10584            workspace.add_item(
10585                pane.clone(),
10586                Box::new(dirty_regular_buffer_2.clone()),
10587                None,
10588                false,
10589                false,
10590                window,
10591                cx,
10592            );
10593            workspace.add_item(
10594                pane.clone(),
10595                Box::new(dirty_multi_buffer_with_both.clone()),
10596                None,
10597                false,
10598                false,
10599                window,
10600                cx,
10601            );
10602        });
10603
10604        pane.update_in(cx, |pane, window, cx| {
10605            pane.activate_item(2, true, true, window, cx);
10606            assert_eq!(
10607                pane.active_item().unwrap().item_id(),
10608                multi_buffer_with_both_files_id,
10609                "Should select the multi buffer in the pane"
10610            );
10611        });
10612        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10613            pane.close_other_items(
10614                &CloseOtherItems {
10615                    save_intent: Some(SaveIntent::Save),
10616                    close_pinned: true,
10617                },
10618                None,
10619                window,
10620                cx,
10621            )
10622        });
10623        cx.background_executor.run_until_parked();
10624        assert!(!cx.has_pending_prompt());
10625        close_all_but_multi_buffer_task
10626            .await
10627            .expect("Closing all buffers but the multi buffer failed");
10628        pane.update(cx, |pane, cx| {
10629            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10630            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10631            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10632            assert_eq!(pane.items_len(), 1);
10633            assert_eq!(
10634                pane.active_item().unwrap().item_id(),
10635                multi_buffer_with_both_files_id,
10636                "Should have only the multi buffer left in the pane"
10637            );
10638            assert!(
10639                dirty_multi_buffer_with_both.read(cx).is_dirty,
10640                "The multi buffer containing the unsaved buffer should still be dirty"
10641            );
10642        });
10643
10644        dirty_regular_buffer.update(cx, |buffer, cx| {
10645            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10646        });
10647
10648        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10649            pane.close_active_item(
10650                &CloseActiveItem {
10651                    save_intent: Some(SaveIntent::Close),
10652                    close_pinned: false,
10653                },
10654                window,
10655                cx,
10656            )
10657        });
10658        cx.background_executor.run_until_parked();
10659        assert!(
10660            cx.has_pending_prompt(),
10661            "Dirty multi buffer should prompt a save dialog"
10662        );
10663        cx.simulate_prompt_answer("Save");
10664        cx.background_executor.run_until_parked();
10665        close_multi_buffer_task
10666            .await
10667            .expect("Closing the multi buffer failed");
10668        pane.update(cx, |pane, cx| {
10669            assert_eq!(
10670                dirty_multi_buffer_with_both.read(cx).save_count,
10671                1,
10672                "Multi buffer item should get be saved"
10673            );
10674            // Test impl does not save inner items, so we do not assert them
10675            assert_eq!(
10676                pane.items_len(),
10677                0,
10678                "No more items should be left in the pane"
10679            );
10680            assert!(pane.active_item().is_none());
10681        });
10682    }
10683
10684    #[gpui::test]
10685    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10686        cx: &mut TestAppContext,
10687    ) {
10688        init_test(cx);
10689
10690        let fs = FakeFs::new(cx.background_executor.clone());
10691        let project = Project::test(fs, [], cx).await;
10692        let (workspace, cx) =
10693            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10694        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10695
10696        let dirty_regular_buffer = cx.new(|cx| {
10697            TestItem::new(cx)
10698                .with_dirty(true)
10699                .with_label("1.txt")
10700                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10701        });
10702        let dirty_regular_buffer_2 = cx.new(|cx| {
10703            TestItem::new(cx)
10704                .with_dirty(true)
10705                .with_label("2.txt")
10706                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10707        });
10708        let clear_regular_buffer = cx.new(|cx| {
10709            TestItem::new(cx)
10710                .with_label("3.txt")
10711                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10712        });
10713
10714        let dirty_multi_buffer_with_both = cx.new(|cx| {
10715            TestItem::new(cx)
10716                .with_dirty(true)
10717                .with_buffer_kind(ItemBufferKind::Multibuffer)
10718                .with_label("Fake Project Search")
10719                .with_project_items(&[
10720                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10721                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10722                    clear_regular_buffer.read(cx).project_items[0].clone(),
10723                ])
10724        });
10725        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10726        workspace.update_in(cx, |workspace, window, cx| {
10727            workspace.add_item(
10728                pane.clone(),
10729                Box::new(dirty_regular_buffer.clone()),
10730                None,
10731                false,
10732                false,
10733                window,
10734                cx,
10735            );
10736            workspace.add_item(
10737                pane.clone(),
10738                Box::new(dirty_multi_buffer_with_both.clone()),
10739                None,
10740                false,
10741                false,
10742                window,
10743                cx,
10744            );
10745        });
10746
10747        pane.update_in(cx, |pane, window, cx| {
10748            pane.activate_item(1, true, true, window, cx);
10749            assert_eq!(
10750                pane.active_item().unwrap().item_id(),
10751                multi_buffer_with_both_files_id,
10752                "Should select the multi buffer in the pane"
10753            );
10754        });
10755        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10756            pane.close_active_item(
10757                &CloseActiveItem {
10758                    save_intent: None,
10759                    close_pinned: false,
10760                },
10761                window,
10762                cx,
10763            )
10764        });
10765        cx.background_executor.run_until_parked();
10766        assert!(
10767            cx.has_pending_prompt(),
10768            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10769        );
10770    }
10771
10772    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10773    /// closed when they are deleted from disk.
10774    #[gpui::test]
10775    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10776        init_test(cx);
10777
10778        // Enable the close_on_disk_deletion setting
10779        cx.update_global(|store: &mut SettingsStore, cx| {
10780            store.update_user_settings(cx, |settings| {
10781                settings.workspace.close_on_file_delete = Some(true);
10782            });
10783        });
10784
10785        let fs = FakeFs::new(cx.background_executor.clone());
10786        let project = Project::test(fs, [], cx).await;
10787        let (workspace, cx) =
10788            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10789        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10790
10791        // Create a test item that simulates a file
10792        let item = cx.new(|cx| {
10793            TestItem::new(cx)
10794                .with_label("test.txt")
10795                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10796        });
10797
10798        // Add item to workspace
10799        workspace.update_in(cx, |workspace, window, cx| {
10800            workspace.add_item(
10801                pane.clone(),
10802                Box::new(item.clone()),
10803                None,
10804                false,
10805                false,
10806                window,
10807                cx,
10808            );
10809        });
10810
10811        // Verify the item is in the pane
10812        pane.read_with(cx, |pane, _| {
10813            assert_eq!(pane.items().count(), 1);
10814        });
10815
10816        // Simulate file deletion by setting the item's deleted state
10817        item.update(cx, |item, _| {
10818            item.set_has_deleted_file(true);
10819        });
10820
10821        // Emit UpdateTab event to trigger the close behavior
10822        cx.run_until_parked();
10823        item.update(cx, |_, cx| {
10824            cx.emit(ItemEvent::UpdateTab);
10825        });
10826
10827        // Allow the close operation to complete
10828        cx.run_until_parked();
10829
10830        // Verify the item was automatically closed
10831        pane.read_with(cx, |pane, _| {
10832            assert_eq!(
10833                pane.items().count(),
10834                0,
10835                "Item should be automatically closed when file is deleted"
10836            );
10837        });
10838    }
10839
10840    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10841    /// open with a strikethrough when they are deleted from disk.
10842    #[gpui::test]
10843    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10844        init_test(cx);
10845
10846        // Ensure close_on_disk_deletion is disabled (default)
10847        cx.update_global(|store: &mut SettingsStore, cx| {
10848            store.update_user_settings(cx, |settings| {
10849                settings.workspace.close_on_file_delete = Some(false);
10850            });
10851        });
10852
10853        let fs = FakeFs::new(cx.background_executor.clone());
10854        let project = Project::test(fs, [], cx).await;
10855        let (workspace, cx) =
10856            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10857        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10858
10859        // Create a test item that simulates a file
10860        let item = cx.new(|cx| {
10861            TestItem::new(cx)
10862                .with_label("test.txt")
10863                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10864        });
10865
10866        // Add item to workspace
10867        workspace.update_in(cx, |workspace, window, cx| {
10868            workspace.add_item(
10869                pane.clone(),
10870                Box::new(item.clone()),
10871                None,
10872                false,
10873                false,
10874                window,
10875                cx,
10876            );
10877        });
10878
10879        // Verify the item is in the pane
10880        pane.read_with(cx, |pane, _| {
10881            assert_eq!(pane.items().count(), 1);
10882        });
10883
10884        // Simulate file deletion
10885        item.update(cx, |item, _| {
10886            item.set_has_deleted_file(true);
10887        });
10888
10889        // Emit UpdateTab event
10890        cx.run_until_parked();
10891        item.update(cx, |_, cx| {
10892            cx.emit(ItemEvent::UpdateTab);
10893        });
10894
10895        // Allow any potential close operation to complete
10896        cx.run_until_parked();
10897
10898        // Verify the item remains open (with strikethrough)
10899        pane.read_with(cx, |pane, _| {
10900            assert_eq!(
10901                pane.items().count(),
10902                1,
10903                "Item should remain open when close_on_disk_deletion is disabled"
10904            );
10905        });
10906
10907        // Verify the item shows as deleted
10908        item.read_with(cx, |item, _| {
10909            assert!(
10910                item.has_deleted_file,
10911                "Item should be marked as having deleted file"
10912            );
10913        });
10914    }
10915
10916    /// Tests that dirty files are not automatically closed when deleted from disk,
10917    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10918    /// unsaved changes without being prompted.
10919    #[gpui::test]
10920    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10921        init_test(cx);
10922
10923        // Enable the close_on_file_delete setting
10924        cx.update_global(|store: &mut SettingsStore, cx| {
10925            store.update_user_settings(cx, |settings| {
10926                settings.workspace.close_on_file_delete = Some(true);
10927            });
10928        });
10929
10930        let fs = FakeFs::new(cx.background_executor.clone());
10931        let project = Project::test(fs, [], cx).await;
10932        let (workspace, cx) =
10933            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10934        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10935
10936        // Create a dirty test item
10937        let item = cx.new(|cx| {
10938            TestItem::new(cx)
10939                .with_dirty(true)
10940                .with_label("test.txt")
10941                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10942        });
10943
10944        // Add item to workspace
10945        workspace.update_in(cx, |workspace, window, cx| {
10946            workspace.add_item(
10947                pane.clone(),
10948                Box::new(item.clone()),
10949                None,
10950                false,
10951                false,
10952                window,
10953                cx,
10954            );
10955        });
10956
10957        // Simulate file deletion
10958        item.update(cx, |item, _| {
10959            item.set_has_deleted_file(true);
10960        });
10961
10962        // Emit UpdateTab event to trigger the close behavior
10963        cx.run_until_parked();
10964        item.update(cx, |_, cx| {
10965            cx.emit(ItemEvent::UpdateTab);
10966        });
10967
10968        // Allow any potential close operation to complete
10969        cx.run_until_parked();
10970
10971        // Verify the item remains open (dirty files are not auto-closed)
10972        pane.read_with(cx, |pane, _| {
10973            assert_eq!(
10974                pane.items().count(),
10975                1,
10976                "Dirty items should not be automatically closed even when file is deleted"
10977            );
10978        });
10979
10980        // Verify the item is marked as deleted and still dirty
10981        item.read_with(cx, |item, _| {
10982            assert!(
10983                item.has_deleted_file,
10984                "Item should be marked as having deleted file"
10985            );
10986            assert!(item.is_dirty, "Item should still be dirty");
10987        });
10988    }
10989
10990    /// Tests that navigation history is cleaned up when files are auto-closed
10991    /// due to deletion from disk.
10992    #[gpui::test]
10993    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
10994        init_test(cx);
10995
10996        // Enable the close_on_file_delete setting
10997        cx.update_global(|store: &mut SettingsStore, cx| {
10998            store.update_user_settings(cx, |settings| {
10999                settings.workspace.close_on_file_delete = Some(true);
11000            });
11001        });
11002
11003        let fs = FakeFs::new(cx.background_executor.clone());
11004        let project = Project::test(fs, [], cx).await;
11005        let (workspace, cx) =
11006            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11007        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11008
11009        // Create test items
11010        let item1 = cx.new(|cx| {
11011            TestItem::new(cx)
11012                .with_label("test1.txt")
11013                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11014        });
11015        let item1_id = item1.item_id();
11016
11017        let item2 = cx.new(|cx| {
11018            TestItem::new(cx)
11019                .with_label("test2.txt")
11020                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11021        });
11022
11023        // Add items to workspace
11024        workspace.update_in(cx, |workspace, window, cx| {
11025            workspace.add_item(
11026                pane.clone(),
11027                Box::new(item1.clone()),
11028                None,
11029                false,
11030                false,
11031                window,
11032                cx,
11033            );
11034            workspace.add_item(
11035                pane.clone(),
11036                Box::new(item2.clone()),
11037                None,
11038                false,
11039                false,
11040                window,
11041                cx,
11042            );
11043        });
11044
11045        // Activate item1 to ensure it gets navigation entries
11046        pane.update_in(cx, |pane, window, cx| {
11047            pane.activate_item(0, true, true, window, cx);
11048        });
11049
11050        // Switch to item2 and back to create navigation history
11051        pane.update_in(cx, |pane, window, cx| {
11052            pane.activate_item(1, true, true, window, cx);
11053        });
11054        cx.run_until_parked();
11055
11056        pane.update_in(cx, |pane, window, cx| {
11057            pane.activate_item(0, true, true, window, cx);
11058        });
11059        cx.run_until_parked();
11060
11061        // Simulate file deletion for item1
11062        item1.update(cx, |item, _| {
11063            item.set_has_deleted_file(true);
11064        });
11065
11066        // Emit UpdateTab event to trigger the close behavior
11067        item1.update(cx, |_, cx| {
11068            cx.emit(ItemEvent::UpdateTab);
11069        });
11070        cx.run_until_parked();
11071
11072        // Verify item1 was closed
11073        pane.read_with(cx, |pane, _| {
11074            assert_eq!(
11075                pane.items().count(),
11076                1,
11077                "Should have 1 item remaining after auto-close"
11078            );
11079        });
11080
11081        // Check navigation history after close
11082        let has_item = pane.read_with(cx, |pane, cx| {
11083            let mut has_item = false;
11084            pane.nav_history().for_each_entry(cx, |entry, _| {
11085                if entry.item.id() == item1_id {
11086                    has_item = true;
11087                }
11088            });
11089            has_item
11090        });
11091
11092        assert!(
11093            !has_item,
11094            "Navigation history should not contain closed item entries"
11095        );
11096    }
11097
11098    #[gpui::test]
11099    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11100        cx: &mut TestAppContext,
11101    ) {
11102        init_test(cx);
11103
11104        let fs = FakeFs::new(cx.background_executor.clone());
11105        let project = Project::test(fs, [], cx).await;
11106        let (workspace, cx) =
11107            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11108        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11109
11110        let dirty_regular_buffer = cx.new(|cx| {
11111            TestItem::new(cx)
11112                .with_dirty(true)
11113                .with_label("1.txt")
11114                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11115        });
11116        let dirty_regular_buffer_2 = cx.new(|cx| {
11117            TestItem::new(cx)
11118                .with_dirty(true)
11119                .with_label("2.txt")
11120                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11121        });
11122        let clear_regular_buffer = cx.new(|cx| {
11123            TestItem::new(cx)
11124                .with_label("3.txt")
11125                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11126        });
11127
11128        let dirty_multi_buffer = cx.new(|cx| {
11129            TestItem::new(cx)
11130                .with_dirty(true)
11131                .with_buffer_kind(ItemBufferKind::Multibuffer)
11132                .with_label("Fake Project Search")
11133                .with_project_items(&[
11134                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11135                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11136                    clear_regular_buffer.read(cx).project_items[0].clone(),
11137                ])
11138        });
11139        workspace.update_in(cx, |workspace, window, cx| {
11140            workspace.add_item(
11141                pane.clone(),
11142                Box::new(dirty_regular_buffer.clone()),
11143                None,
11144                false,
11145                false,
11146                window,
11147                cx,
11148            );
11149            workspace.add_item(
11150                pane.clone(),
11151                Box::new(dirty_regular_buffer_2.clone()),
11152                None,
11153                false,
11154                false,
11155                window,
11156                cx,
11157            );
11158            workspace.add_item(
11159                pane.clone(),
11160                Box::new(dirty_multi_buffer.clone()),
11161                None,
11162                false,
11163                false,
11164                window,
11165                cx,
11166            );
11167        });
11168
11169        pane.update_in(cx, |pane, window, cx| {
11170            pane.activate_item(2, true, true, window, cx);
11171            assert_eq!(
11172                pane.active_item().unwrap().item_id(),
11173                dirty_multi_buffer.item_id(),
11174                "Should select the multi buffer in the pane"
11175            );
11176        });
11177        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11178            pane.close_active_item(
11179                &CloseActiveItem {
11180                    save_intent: None,
11181                    close_pinned: false,
11182                },
11183                window,
11184                cx,
11185            )
11186        });
11187        cx.background_executor.run_until_parked();
11188        assert!(
11189            !cx.has_pending_prompt(),
11190            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11191        );
11192        close_multi_buffer_task
11193            .await
11194            .expect("Closing multi buffer failed");
11195        pane.update(cx, |pane, cx| {
11196            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11197            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11198            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11199            assert_eq!(
11200                pane.items()
11201                    .map(|item| item.item_id())
11202                    .sorted()
11203                    .collect::<Vec<_>>(),
11204                vec![
11205                    dirty_regular_buffer.item_id(),
11206                    dirty_regular_buffer_2.item_id(),
11207                ],
11208                "Should have no multi buffer left in the pane"
11209            );
11210            assert!(dirty_regular_buffer.read(cx).is_dirty);
11211            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11212        });
11213    }
11214
11215    #[gpui::test]
11216    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11217        init_test(cx);
11218        let fs = FakeFs::new(cx.executor());
11219        let project = Project::test(fs, [], cx).await;
11220        let (workspace, cx) =
11221            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11222
11223        // Add a new panel to the right dock, opening the dock and setting the
11224        // focus to the new panel.
11225        let panel = workspace.update_in(cx, |workspace, window, cx| {
11226            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11227            workspace.add_panel(panel.clone(), window, cx);
11228
11229            workspace
11230                .right_dock()
11231                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11232
11233            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11234
11235            panel
11236        });
11237
11238        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11239        // panel to the next valid position which, in this case, is the left
11240        // dock.
11241        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11242        workspace.update(cx, |workspace, cx| {
11243            assert!(workspace.left_dock().read(cx).is_open());
11244            assert_eq!(panel.read(cx).position, DockPosition::Left);
11245        });
11246
11247        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11248        // panel to the next valid position which, in this case, is the bottom
11249        // dock.
11250        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11251        workspace.update(cx, |workspace, cx| {
11252            assert!(workspace.bottom_dock().read(cx).is_open());
11253            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11254        });
11255
11256        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11257        // around moving the panel to its initial position, the right dock.
11258        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11259        workspace.update(cx, |workspace, cx| {
11260            assert!(workspace.right_dock().read(cx).is_open());
11261            assert_eq!(panel.read(cx).position, DockPosition::Right);
11262        });
11263
11264        // Remove focus from the panel, ensuring that, if the panel is not
11265        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11266        // the panel's position, so the panel is still in the right dock.
11267        workspace.update_in(cx, |workspace, window, cx| {
11268            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11269        });
11270
11271        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11272        workspace.update(cx, |workspace, cx| {
11273            assert!(workspace.right_dock().read(cx).is_open());
11274            assert_eq!(panel.read(cx).position, DockPosition::Right);
11275        });
11276    }
11277
11278    #[gpui::test]
11279    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11280        init_test(cx);
11281
11282        let fs = FakeFs::new(cx.executor());
11283        let project = Project::test(fs, [], cx).await;
11284        let (workspace, cx) =
11285            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11286
11287        let item_1 = cx.new(|cx| {
11288            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11289        });
11290        workspace.update_in(cx, |workspace, window, cx| {
11291            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11292            workspace.move_item_to_pane_in_direction(
11293                &MoveItemToPaneInDirection {
11294                    direction: SplitDirection::Right,
11295                    focus: true,
11296                    clone: false,
11297                },
11298                window,
11299                cx,
11300            );
11301            workspace.move_item_to_pane_at_index(
11302                &MoveItemToPane {
11303                    destination: 3,
11304                    focus: true,
11305                    clone: false,
11306                },
11307                window,
11308                cx,
11309            );
11310
11311            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11312            assert_eq!(
11313                pane_items_paths(&workspace.active_pane, cx),
11314                vec!["first.txt".to_string()],
11315                "Single item was not moved anywhere"
11316            );
11317        });
11318
11319        let item_2 = cx.new(|cx| {
11320            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11321        });
11322        workspace.update_in(cx, |workspace, window, cx| {
11323            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11324            assert_eq!(
11325                pane_items_paths(&workspace.panes[0], cx),
11326                vec!["first.txt".to_string(), "second.txt".to_string()],
11327            );
11328            workspace.move_item_to_pane_in_direction(
11329                &MoveItemToPaneInDirection {
11330                    direction: SplitDirection::Right,
11331                    focus: true,
11332                    clone: false,
11333                },
11334                window,
11335                cx,
11336            );
11337
11338            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11339            assert_eq!(
11340                pane_items_paths(&workspace.panes[0], cx),
11341                vec!["first.txt".to_string()],
11342                "After moving, one item should be left in the original pane"
11343            );
11344            assert_eq!(
11345                pane_items_paths(&workspace.panes[1], cx),
11346                vec!["second.txt".to_string()],
11347                "New item should have been moved to the new pane"
11348            );
11349        });
11350
11351        let item_3 = cx.new(|cx| {
11352            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11353        });
11354        workspace.update_in(cx, |workspace, window, cx| {
11355            let original_pane = workspace.panes[0].clone();
11356            workspace.set_active_pane(&original_pane, window, cx);
11357            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11358            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11359            assert_eq!(
11360                pane_items_paths(&workspace.active_pane, cx),
11361                vec!["first.txt".to_string(), "third.txt".to_string()],
11362                "New pane should be ready to move one item out"
11363            );
11364
11365            workspace.move_item_to_pane_at_index(
11366                &MoveItemToPane {
11367                    destination: 3,
11368                    focus: true,
11369                    clone: false,
11370                },
11371                window,
11372                cx,
11373            );
11374            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11375            assert_eq!(
11376                pane_items_paths(&workspace.active_pane, cx),
11377                vec!["first.txt".to_string()],
11378                "After moving, one item should be left in the original pane"
11379            );
11380            assert_eq!(
11381                pane_items_paths(&workspace.panes[1], cx),
11382                vec!["second.txt".to_string()],
11383                "Previously created pane should be unchanged"
11384            );
11385            assert_eq!(
11386                pane_items_paths(&workspace.panes[2], cx),
11387                vec!["third.txt".to_string()],
11388                "New item should have been moved to the new pane"
11389            );
11390        });
11391    }
11392
11393    #[gpui::test]
11394    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11395        init_test(cx);
11396
11397        let fs = FakeFs::new(cx.executor());
11398        let project = Project::test(fs, [], cx).await;
11399        let (workspace, cx) =
11400            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11401
11402        let item_1 = cx.new(|cx| {
11403            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11404        });
11405        workspace.update_in(cx, |workspace, window, cx| {
11406            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11407            workspace.move_item_to_pane_in_direction(
11408                &MoveItemToPaneInDirection {
11409                    direction: SplitDirection::Right,
11410                    focus: true,
11411                    clone: true,
11412                },
11413                window,
11414                cx,
11415            );
11416            workspace.move_item_to_pane_at_index(
11417                &MoveItemToPane {
11418                    destination: 3,
11419                    focus: true,
11420                    clone: true,
11421                },
11422                window,
11423                cx,
11424            );
11425        });
11426        cx.run_until_parked();
11427
11428        workspace.update(cx, |workspace, cx| {
11429            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11430            for pane in workspace.panes() {
11431                assert_eq!(
11432                    pane_items_paths(pane, cx),
11433                    vec!["first.txt".to_string()],
11434                    "Single item exists in all panes"
11435                );
11436            }
11437        });
11438
11439        // verify that the active pane has been updated after waiting for the
11440        // pane focus event to fire and resolve
11441        workspace.read_with(cx, |workspace, _app| {
11442            assert_eq!(
11443                workspace.active_pane(),
11444                &workspace.panes[2],
11445                "The third pane should be the active one: {:?}",
11446                workspace.panes
11447            );
11448        })
11449    }
11450
11451    mod register_project_item_tests {
11452
11453        use super::*;
11454
11455        // View
11456        struct TestPngItemView {
11457            focus_handle: FocusHandle,
11458        }
11459        // Model
11460        struct TestPngItem {}
11461
11462        impl project::ProjectItem for TestPngItem {
11463            fn try_open(
11464                _project: &Entity<Project>,
11465                path: &ProjectPath,
11466                cx: &mut App,
11467            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11468                if path.path.extension().unwrap() == "png" {
11469                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11470                } else {
11471                    None
11472                }
11473            }
11474
11475            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11476                None
11477            }
11478
11479            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11480                None
11481            }
11482
11483            fn is_dirty(&self) -> bool {
11484                false
11485            }
11486        }
11487
11488        impl Item for TestPngItemView {
11489            type Event = ();
11490            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11491                "".into()
11492            }
11493        }
11494        impl EventEmitter<()> for TestPngItemView {}
11495        impl Focusable for TestPngItemView {
11496            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11497                self.focus_handle.clone()
11498            }
11499        }
11500
11501        impl Render for TestPngItemView {
11502            fn render(
11503                &mut self,
11504                _window: &mut Window,
11505                _cx: &mut Context<Self>,
11506            ) -> impl IntoElement {
11507                Empty
11508            }
11509        }
11510
11511        impl ProjectItem for TestPngItemView {
11512            type Item = TestPngItem;
11513
11514            fn for_project_item(
11515                _project: Entity<Project>,
11516                _pane: Option<&Pane>,
11517                _item: Entity<Self::Item>,
11518                _: &mut Window,
11519                cx: &mut Context<Self>,
11520            ) -> Self
11521            where
11522                Self: Sized,
11523            {
11524                Self {
11525                    focus_handle: cx.focus_handle(),
11526                }
11527            }
11528        }
11529
11530        // View
11531        struct TestIpynbItemView {
11532            focus_handle: FocusHandle,
11533        }
11534        // Model
11535        struct TestIpynbItem {}
11536
11537        impl project::ProjectItem for TestIpynbItem {
11538            fn try_open(
11539                _project: &Entity<Project>,
11540                path: &ProjectPath,
11541                cx: &mut App,
11542            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11543                if path.path.extension().unwrap() == "ipynb" {
11544                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11545                } else {
11546                    None
11547                }
11548            }
11549
11550            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11551                None
11552            }
11553
11554            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11555                None
11556            }
11557
11558            fn is_dirty(&self) -> bool {
11559                false
11560            }
11561        }
11562
11563        impl Item for TestIpynbItemView {
11564            type Event = ();
11565            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11566                "".into()
11567            }
11568        }
11569        impl EventEmitter<()> for TestIpynbItemView {}
11570        impl Focusable for TestIpynbItemView {
11571            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11572                self.focus_handle.clone()
11573            }
11574        }
11575
11576        impl Render for TestIpynbItemView {
11577            fn render(
11578                &mut self,
11579                _window: &mut Window,
11580                _cx: &mut Context<Self>,
11581            ) -> impl IntoElement {
11582                Empty
11583            }
11584        }
11585
11586        impl ProjectItem for TestIpynbItemView {
11587            type Item = TestIpynbItem;
11588
11589            fn for_project_item(
11590                _project: Entity<Project>,
11591                _pane: Option<&Pane>,
11592                _item: Entity<Self::Item>,
11593                _: &mut Window,
11594                cx: &mut Context<Self>,
11595            ) -> Self
11596            where
11597                Self: Sized,
11598            {
11599                Self {
11600                    focus_handle: cx.focus_handle(),
11601                }
11602            }
11603        }
11604
11605        struct TestAlternatePngItemView {
11606            focus_handle: FocusHandle,
11607        }
11608
11609        impl Item for TestAlternatePngItemView {
11610            type Event = ();
11611            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11612                "".into()
11613            }
11614        }
11615
11616        impl EventEmitter<()> for TestAlternatePngItemView {}
11617        impl Focusable for TestAlternatePngItemView {
11618            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11619                self.focus_handle.clone()
11620            }
11621        }
11622
11623        impl Render for TestAlternatePngItemView {
11624            fn render(
11625                &mut self,
11626                _window: &mut Window,
11627                _cx: &mut Context<Self>,
11628            ) -> impl IntoElement {
11629                Empty
11630            }
11631        }
11632
11633        impl ProjectItem for TestAlternatePngItemView {
11634            type Item = TestPngItem;
11635
11636            fn for_project_item(
11637                _project: Entity<Project>,
11638                _pane: Option<&Pane>,
11639                _item: Entity<Self::Item>,
11640                _: &mut Window,
11641                cx: &mut Context<Self>,
11642            ) -> Self
11643            where
11644                Self: Sized,
11645            {
11646                Self {
11647                    focus_handle: cx.focus_handle(),
11648                }
11649            }
11650        }
11651
11652        #[gpui::test]
11653        async fn test_register_project_item(cx: &mut TestAppContext) {
11654            init_test(cx);
11655
11656            cx.update(|cx| {
11657                register_project_item::<TestPngItemView>(cx);
11658                register_project_item::<TestIpynbItemView>(cx);
11659            });
11660
11661            let fs = FakeFs::new(cx.executor());
11662            fs.insert_tree(
11663                "/root1",
11664                json!({
11665                    "one.png": "BINARYDATAHERE",
11666                    "two.ipynb": "{ totally a notebook }",
11667                    "three.txt": "editing text, sure why not?"
11668                }),
11669            )
11670            .await;
11671
11672            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11673            let (workspace, cx) =
11674                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11675
11676            let worktree_id = project.update(cx, |project, cx| {
11677                project.worktrees(cx).next().unwrap().read(cx).id()
11678            });
11679
11680            let handle = workspace
11681                .update_in(cx, |workspace, window, cx| {
11682                    let project_path = (worktree_id, rel_path("one.png"));
11683                    workspace.open_path(project_path, None, true, window, cx)
11684                })
11685                .await
11686                .unwrap();
11687
11688            // Now we can check if the handle we got back errored or not
11689            assert_eq!(
11690                handle.to_any_view().entity_type(),
11691                TypeId::of::<TestPngItemView>()
11692            );
11693
11694            let handle = workspace
11695                .update_in(cx, |workspace, window, cx| {
11696                    let project_path = (worktree_id, rel_path("two.ipynb"));
11697                    workspace.open_path(project_path, None, true, window, cx)
11698                })
11699                .await
11700                .unwrap();
11701
11702            assert_eq!(
11703                handle.to_any_view().entity_type(),
11704                TypeId::of::<TestIpynbItemView>()
11705            );
11706
11707            let handle = workspace
11708                .update_in(cx, |workspace, window, cx| {
11709                    let project_path = (worktree_id, rel_path("three.txt"));
11710                    workspace.open_path(project_path, None, true, window, cx)
11711                })
11712                .await;
11713            assert!(handle.is_err());
11714        }
11715
11716        #[gpui::test]
11717        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11718            init_test(cx);
11719
11720            cx.update(|cx| {
11721                register_project_item::<TestPngItemView>(cx);
11722                register_project_item::<TestAlternatePngItemView>(cx);
11723            });
11724
11725            let fs = FakeFs::new(cx.executor());
11726            fs.insert_tree(
11727                "/root1",
11728                json!({
11729                    "one.png": "BINARYDATAHERE",
11730                    "two.ipynb": "{ totally a notebook }",
11731                    "three.txt": "editing text, sure why not?"
11732                }),
11733            )
11734            .await;
11735            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11736            let (workspace, cx) =
11737                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11738            let worktree_id = project.update(cx, |project, cx| {
11739                project.worktrees(cx).next().unwrap().read(cx).id()
11740            });
11741
11742            let handle = workspace
11743                .update_in(cx, |workspace, window, cx| {
11744                    let project_path = (worktree_id, rel_path("one.png"));
11745                    workspace.open_path(project_path, None, true, window, cx)
11746                })
11747                .await
11748                .unwrap();
11749
11750            // This _must_ be the second item registered
11751            assert_eq!(
11752                handle.to_any_view().entity_type(),
11753                TypeId::of::<TestAlternatePngItemView>()
11754            );
11755
11756            let handle = workspace
11757                .update_in(cx, |workspace, window, cx| {
11758                    let project_path = (worktree_id, rel_path("three.txt"));
11759                    workspace.open_path(project_path, None, true, window, cx)
11760                })
11761                .await;
11762            assert!(handle.is_err());
11763        }
11764    }
11765
11766    #[gpui::test]
11767    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11768        init_test(cx);
11769
11770        let fs = FakeFs::new(cx.executor());
11771        let project = Project::test(fs, [], cx).await;
11772        let (workspace, _cx) =
11773            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11774
11775        // Test with status bar shown (default)
11776        workspace.read_with(cx, |workspace, cx| {
11777            let visible = workspace.status_bar_visible(cx);
11778            assert!(visible, "Status bar should be visible by default");
11779        });
11780
11781        // Test with status bar hidden
11782        cx.update_global(|store: &mut SettingsStore, cx| {
11783            store.update_user_settings(cx, |settings| {
11784                settings.status_bar.get_or_insert_default().show = Some(false);
11785            });
11786        });
11787
11788        workspace.read_with(cx, |workspace, cx| {
11789            let visible = workspace.status_bar_visible(cx);
11790            assert!(!visible, "Status bar should be hidden when show is false");
11791        });
11792
11793        // Test with status bar shown explicitly
11794        cx.update_global(|store: &mut SettingsStore, cx| {
11795            store.update_user_settings(cx, |settings| {
11796                settings.status_bar.get_or_insert_default().show = Some(true);
11797            });
11798        });
11799
11800        workspace.read_with(cx, |workspace, cx| {
11801            let visible = workspace.status_bar_visible(cx);
11802            assert!(visible, "Status bar should be visible when show is true");
11803        });
11804    }
11805
11806    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11807        pane.read(cx)
11808            .items()
11809            .flat_map(|item| {
11810                item.project_paths(cx)
11811                    .into_iter()
11812                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11813            })
11814            .collect()
11815    }
11816
11817    pub fn init_test(cx: &mut TestAppContext) {
11818        cx.update(|cx| {
11819            let settings_store = SettingsStore::test(cx);
11820            cx.set_global(settings_store);
11821            theme::init(theme::LoadThemes::JustBase, cx);
11822        });
11823    }
11824
11825    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11826        let item = TestProjectItem::new(id, path, cx);
11827        item.update(cx, |item, _| {
11828            item.is_dirty = true;
11829        });
11830        item
11831    }
11832}