workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12mod security_modal;
   13pub mod shared_screen;
   14mod status_bar;
   15pub mod tasks;
   16mod theme_preview;
   17mod toast_layer;
   18mod toolbar;
   19pub mod utility_pane;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use path_list::PathList;
   26pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   27
   28use anyhow::{Context as _, Result, anyhow};
   29use call::{ActiveCall, call_settings::CallSettings};
   30use client::{
   31    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   32    proto::{self, ErrorCode, PanelId, PeerId},
   33};
   34use collections::{HashMap, HashSet, hash_map};
   35use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   36use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   37use futures::{
   38    Future, FutureExt, StreamExt,
   39    channel::{
   40        mpsc::{self, UnboundedReceiver, UnboundedSender},
   41        oneshot,
   42    },
   43    future::{Shared, try_join_all},
   44};
   45use gpui::{
   46    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   47    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   48    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   49    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   50    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   51    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   52};
   53pub use history_manager::*;
   54pub use item::{
   55    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   56    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   57};
   58use itertools::Itertools;
   59use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   60pub use modal_layer::*;
   61use node_runtime::NodeRuntime;
   62use notifications::{
   63    DetachAndPromptErr, Notifications, dismiss_app_notification,
   64    simple_message_notification::MessageNotification,
   65};
   66pub use pane::*;
   67pub use pane_group::{
   68    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   69    SplitDirection,
   70};
   71use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   72pub use persistence::{
   73    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   74    model::{ItemId, SerializedWorkspaceLocation},
   75};
   76use postage::stream::Stream;
   77use project::{
   78    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   79    WorktreeSettings,
   80    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   81    project_settings::ProjectSettings,
   82    toolchain_store::ToolchainStoreEvent,
   83    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Clears all notifications.
  217        ClearAllNotifications,
  218        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  219        ClearNavigationHistory,
  220        /// Closes the active dock.
  221        CloseActiveDock,
  222        /// Closes all docks.
  223        CloseAllDocks,
  224        /// Toggles all docks.
  225        ToggleAllDocks,
  226        /// Closes the current window.
  227        CloseWindow,
  228        /// Opens the feedback dialog.
  229        Feedback,
  230        /// Follows the next collaborator in the session.
  231        FollowNextCollaborator,
  232        /// Moves the focused panel to the next position.
  233        MoveFocusedPanelToNextPosition,
  234        /// Opens a new terminal in the center.
  235        NewCenterTerminal,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new terminal.
  245        NewTerminal,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Zooms in on the active pane.
  285        ZoomIn,
  286        /// Zooms out of the active pane.
  287        ZoomOut,
  288        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  289        /// If the modal is shown already, closes it without trusting any worktree.
  290        ToggleWorktreeSecurity,
  291        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  292        /// Requires restart to take effect on already opened projects.
  293        ClearTrustedWorktrees,
  294        /// Stops following a collaborator.
  295        Unfollow,
  296        /// Restores the banner.
  297        RestoreBanner,
  298        /// Toggles expansion of the selected item.
  299        ToggleExpandItem,
  300    ]
  301);
  302
  303/// Activates a specific pane by its index.
  304#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306pub struct ActivatePane(pub usize);
  307
  308/// Moves an item to a specific pane by index.
  309#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  310#[action(namespace = workspace)]
  311#[serde(deny_unknown_fields)]
  312pub struct MoveItemToPane {
  313    #[serde(default = "default_1")]
  314    pub destination: usize,
  315    #[serde(default = "default_true")]
  316    pub focus: bool,
  317    #[serde(default)]
  318    pub clone: bool,
  319}
  320
  321fn default_1() -> usize {
  322    1
  323}
  324
  325/// Moves an item to a pane in the specified direction.
  326#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct MoveItemToPaneInDirection {
  330    #[serde(default = "default_right")]
  331    pub direction: SplitDirection,
  332    #[serde(default = "default_true")]
  333    pub focus: bool,
  334    #[serde(default)]
  335    pub clone: bool,
  336}
  337
  338/// Creates a new file in a split of the desired direction.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct NewFileSplit(pub SplitDirection);
  343
  344fn default_right() -> SplitDirection {
  345    SplitDirection::Right
  346}
  347
  348/// Saves all open files in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct SaveAll {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Saves the current file with the specified options.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct Save {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Closes all items and panes in the workspace.
  367#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct CloseAllItemsAndPanes {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all inactive tabs and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseInactiveTabsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Sends a sequence of keystrokes to the active element.
  385#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387pub struct SendKeystrokes(pub String);
  388
  389actions!(
  390    project_symbols,
  391    [
  392        /// Toggles the project symbols search.
  393        #[action(name = "Toggle")]
  394        ToggleProjectSymbols
  395    ]
  396);
  397
  398/// Toggles the file finder interface.
  399#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  400#[action(namespace = file_finder, name = "Toggle")]
  401#[serde(deny_unknown_fields)]
  402pub struct ToggleFileFinder {
  403    #[serde(default)]
  404    pub separate_history: bool,
  405}
  406
  407/// Increases size of a currently focused dock by a given amount of pixels.
  408#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct IncreaseActiveDockSize {
  412    /// For 0px parameter, uses UI font size value.
  413    #[serde(default)]
  414    pub px: u32,
  415}
  416
  417/// Decreases size of a currently focused dock by a given amount of pixels.
  418#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct DecreaseActiveDockSize {
  422    /// For 0px parameter, uses UI font size value.
  423    #[serde(default)]
  424    pub px: u32,
  425}
  426
  427/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  428#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct IncreaseOpenDocksSize {
  432    /// For 0px parameter, uses UI font size value.
  433    #[serde(default)]
  434    pub px: u32,
  435}
  436
  437/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  438#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct DecreaseOpenDocksSize {
  442    /// For 0px parameter, uses UI font size value.
  443    #[serde(default)]
  444    pub px: u32,
  445}
  446
  447actions!(
  448    workspace,
  449    [
  450        /// Activates the pane to the left.
  451        ActivatePaneLeft,
  452        /// Activates the pane to the right.
  453        ActivatePaneRight,
  454        /// Activates the pane above.
  455        ActivatePaneUp,
  456        /// Activates the pane below.
  457        ActivatePaneDown,
  458        /// Swaps the current pane with the one to the left.
  459        SwapPaneLeft,
  460        /// Swaps the current pane with the one to the right.
  461        SwapPaneRight,
  462        /// Swaps the current pane with the one above.
  463        SwapPaneUp,
  464        /// Swaps the current pane with the one below.
  465        SwapPaneDown,
  466        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  467        SwapPaneAdjacent,
  468        /// Move the current pane to be at the far left.
  469        MovePaneLeft,
  470        /// Move the current pane to be at the far right.
  471        MovePaneRight,
  472        /// Move the current pane to be at the very top.
  473        MovePaneUp,
  474        /// Move the current pane to be at the very bottom.
  475        MovePaneDown,
  476    ]
  477);
  478
  479#[derive(PartialEq, Eq, Debug)]
  480pub enum CloseIntent {
  481    /// Quit the program entirely.
  482    Quit,
  483    /// Close a window.
  484    CloseWindow,
  485    /// Replace the workspace in an existing window.
  486    ReplaceWindow,
  487}
  488
  489#[derive(Clone)]
  490pub struct Toast {
  491    id: NotificationId,
  492    msg: Cow<'static, str>,
  493    autohide: bool,
  494    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  495}
  496
  497impl Toast {
  498    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  499        Toast {
  500            id,
  501            msg: msg.into(),
  502            on_click: None,
  503            autohide: false,
  504        }
  505    }
  506
  507    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  508    where
  509        M: Into<Cow<'static, str>>,
  510        F: Fn(&mut Window, &mut App) + 'static,
  511    {
  512        self.on_click = Some((message.into(), Arc::new(on_click)));
  513        self
  514    }
  515
  516    pub fn autohide(mut self) -> Self {
  517        self.autohide = true;
  518        self
  519    }
  520}
  521
  522impl PartialEq for Toast {
  523    fn eq(&self, other: &Self) -> bool {
  524        self.id == other.id
  525            && self.msg == other.msg
  526            && self.on_click.is_some() == other.on_click.is_some()
  527    }
  528}
  529
  530/// Opens a new terminal with the specified working directory.
  531#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  532#[action(namespace = workspace)]
  533#[serde(deny_unknown_fields)]
  534pub struct OpenTerminal {
  535    pub working_directory: PathBuf,
  536}
  537
  538#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  539pub struct WorkspaceId(i64);
  540
  541impl StaticColumnCount for WorkspaceId {}
  542impl Bind for WorkspaceId {
  543    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  544        self.0.bind(statement, start_index)
  545    }
  546}
  547impl Column for WorkspaceId {
  548    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  549        i64::column(statement, start_index)
  550            .map(|(i, next_index)| (Self(i), next_index))
  551            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  552    }
  553}
  554impl From<WorkspaceId> for i64 {
  555    fn from(val: WorkspaceId) -> Self {
  556        val.0
  557    }
  558}
  559
  560fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  561    let paths = cx.prompt_for_paths(options);
  562    cx.spawn(
  563        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  564            Ok(Some(paths)) => {
  565                cx.update(|cx| {
  566                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  567                })
  568                .ok();
  569            }
  570            Ok(None) => {}
  571            Err(err) => {
  572                util::log_err(&err);
  573                cx.update(|cx| {
  574                    if let Some(workspace_window) = cx
  575                        .active_window()
  576                        .and_then(|window| window.downcast::<Workspace>())
  577                    {
  578                        workspace_window
  579                            .update(cx, |workspace, _, cx| {
  580                                workspace.show_portal_error(err.to_string(), cx);
  581                            })
  582                            .ok();
  583                    }
  584                })
  585                .ok();
  586            }
  587        },
  588    )
  589    .detach();
  590}
  591
  592pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  593    component::init();
  594    theme_preview::init(cx);
  595    toast_layer::init(cx);
  596    history_manager::init(cx);
  597
  598    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  599        .on_action(|_: &Reload, cx| reload(cx))
  600        .on_action({
  601            let app_state = Arc::downgrade(&app_state);
  602            move |_: &Open, cx: &mut App| {
  603                if let Some(app_state) = app_state.upgrade() {
  604                    prompt_and_open_paths(
  605                        app_state,
  606                        PathPromptOptions {
  607                            files: true,
  608                            directories: true,
  609                            multiple: true,
  610                            prompt: None,
  611                        },
  612                        cx,
  613                    );
  614                }
  615            }
  616        })
  617        .on_action({
  618            let app_state = Arc::downgrade(&app_state);
  619            move |_: &OpenFiles, cx: &mut App| {
  620                let directories = cx.can_select_mixed_files_and_dirs();
  621                if let Some(app_state) = app_state.upgrade() {
  622                    prompt_and_open_paths(
  623                        app_state,
  624                        PathPromptOptions {
  625                            files: true,
  626                            directories,
  627                            multiple: true,
  628                            prompt: None,
  629                        },
  630                        cx,
  631                    );
  632                }
  633            }
  634        });
  635}
  636
  637type BuildProjectItemFn =
  638    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  639
  640type BuildProjectItemForPathFn =
  641    fn(
  642        &Entity<Project>,
  643        &ProjectPath,
  644        &mut Window,
  645        &mut App,
  646    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  647
  648#[derive(Clone, Default)]
  649struct ProjectItemRegistry {
  650    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  651    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  652}
  653
  654impl ProjectItemRegistry {
  655    fn register<T: ProjectItem>(&mut self) {
  656        self.build_project_item_fns_by_type.insert(
  657            TypeId::of::<T::Item>(),
  658            |item, project, pane, window, cx| {
  659                let item = item.downcast().unwrap();
  660                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  661                    as Box<dyn ItemHandle>
  662            },
  663        );
  664        self.build_project_item_for_path_fns
  665            .push(|project, project_path, window, cx| {
  666                let project_path = project_path.clone();
  667                let is_file = project
  668                    .read(cx)
  669                    .entry_for_path(&project_path, cx)
  670                    .is_some_and(|entry| entry.is_file());
  671                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  672                let is_local = project.read(cx).is_local();
  673                let project_item =
  674                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  675                let project = project.clone();
  676                Some(window.spawn(cx, async move |cx| {
  677                    match project_item.await.with_context(|| {
  678                        format!(
  679                            "opening project path {:?}",
  680                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  681                        )
  682                    }) {
  683                        Ok(project_item) => {
  684                            let project_item = project_item;
  685                            let project_entry_id: Option<ProjectEntryId> =
  686                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  687                            let build_workspace_item = Box::new(
  688                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  689                                    Box::new(cx.new(|cx| {
  690                                        T::for_project_item(
  691                                            project,
  692                                            Some(pane),
  693                                            project_item,
  694                                            window,
  695                                            cx,
  696                                        )
  697                                    })) as Box<dyn ItemHandle>
  698                                },
  699                            ) as Box<_>;
  700                            Ok((project_entry_id, build_workspace_item))
  701                        }
  702                        Err(e) => {
  703                            log::warn!("Failed to open a project item: {e:#}");
  704                            if e.error_code() == ErrorCode::Internal {
  705                                if let Some(abs_path) =
  706                                    entry_abs_path.as_deref().filter(|_| is_file)
  707                                {
  708                                    if let Some(broken_project_item_view) =
  709                                        cx.update(|window, cx| {
  710                                            T::for_broken_project_item(
  711                                                abs_path, is_local, &e, window, cx,
  712                                            )
  713                                        })?
  714                                    {
  715                                        let build_workspace_item = Box::new(
  716                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  717                                                cx.new(|_| broken_project_item_view).boxed_clone()
  718                                            },
  719                                        )
  720                                        as Box<_>;
  721                                        return Ok((None, build_workspace_item));
  722                                    }
  723                                }
  724                            }
  725                            Err(e)
  726                        }
  727                    }
  728                }))
  729            });
  730    }
  731
  732    fn open_path(
  733        &self,
  734        project: &Entity<Project>,
  735        path: &ProjectPath,
  736        window: &mut Window,
  737        cx: &mut App,
  738    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  739        let Some(open_project_item) = self
  740            .build_project_item_for_path_fns
  741            .iter()
  742            .rev()
  743            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  744        else {
  745            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  746        };
  747        open_project_item
  748    }
  749
  750    fn build_item<T: project::ProjectItem>(
  751        &self,
  752        item: Entity<T>,
  753        project: Entity<Project>,
  754        pane: Option<&Pane>,
  755        window: &mut Window,
  756        cx: &mut App,
  757    ) -> Option<Box<dyn ItemHandle>> {
  758        let build = self
  759            .build_project_item_fns_by_type
  760            .get(&TypeId::of::<T>())?;
  761        Some(build(item.into_any(), project, pane, window, cx))
  762    }
  763}
  764
  765type WorkspaceItemBuilder =
  766    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  767
  768impl Global for ProjectItemRegistry {}
  769
  770/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  771/// items will get a chance to open the file, starting from the project item that
  772/// was added last.
  773pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  774    cx.default_global::<ProjectItemRegistry>().register::<I>();
  775}
  776
  777#[derive(Default)]
  778pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  779
  780struct FollowableViewDescriptor {
  781    from_state_proto: fn(
  782        Entity<Workspace>,
  783        ViewId,
  784        &mut Option<proto::view::Variant>,
  785        &mut Window,
  786        &mut App,
  787    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  788    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  789}
  790
  791impl Global for FollowableViewRegistry {}
  792
  793impl FollowableViewRegistry {
  794    pub fn register<I: FollowableItem>(cx: &mut App) {
  795        cx.default_global::<Self>().0.insert(
  796            TypeId::of::<I>(),
  797            FollowableViewDescriptor {
  798                from_state_proto: |workspace, id, state, window, cx| {
  799                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  800                        cx.foreground_executor()
  801                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  802                    })
  803                },
  804                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  805            },
  806        );
  807    }
  808
  809    pub fn from_state_proto(
  810        workspace: Entity<Workspace>,
  811        view_id: ViewId,
  812        mut state: Option<proto::view::Variant>,
  813        window: &mut Window,
  814        cx: &mut App,
  815    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  816        cx.update_default_global(|this: &mut Self, cx| {
  817            this.0.values().find_map(|descriptor| {
  818                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  819            })
  820        })
  821    }
  822
  823    pub fn to_followable_view(
  824        view: impl Into<AnyView>,
  825        cx: &App,
  826    ) -> Option<Box<dyn FollowableItemHandle>> {
  827        let this = cx.try_global::<Self>()?;
  828        let view = view.into();
  829        let descriptor = this.0.get(&view.entity_type())?;
  830        Some((descriptor.to_followable_view)(&view))
  831    }
  832}
  833
  834#[derive(Copy, Clone)]
  835struct SerializableItemDescriptor {
  836    deserialize: fn(
  837        Entity<Project>,
  838        WeakEntity<Workspace>,
  839        WorkspaceId,
  840        ItemId,
  841        &mut Window,
  842        &mut Context<Pane>,
  843    ) -> Task<Result<Box<dyn ItemHandle>>>,
  844    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  845    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  846}
  847
  848#[derive(Default)]
  849struct SerializableItemRegistry {
  850    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  851    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  852}
  853
  854impl Global for SerializableItemRegistry {}
  855
  856impl SerializableItemRegistry {
  857    fn deserialize(
  858        item_kind: &str,
  859        project: Entity<Project>,
  860        workspace: WeakEntity<Workspace>,
  861        workspace_id: WorkspaceId,
  862        item_item: ItemId,
  863        window: &mut Window,
  864        cx: &mut Context<Pane>,
  865    ) -> Task<Result<Box<dyn ItemHandle>>> {
  866        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  867            return Task::ready(Err(anyhow!(
  868                "cannot deserialize {}, descriptor not found",
  869                item_kind
  870            )));
  871        };
  872
  873        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  874    }
  875
  876    fn cleanup(
  877        item_kind: &str,
  878        workspace_id: WorkspaceId,
  879        loaded_items: Vec<ItemId>,
  880        window: &mut Window,
  881        cx: &mut App,
  882    ) -> Task<Result<()>> {
  883        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  884            return Task::ready(Err(anyhow!(
  885                "cannot cleanup {}, descriptor not found",
  886                item_kind
  887            )));
  888        };
  889
  890        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  891    }
  892
  893    fn view_to_serializable_item_handle(
  894        view: AnyView,
  895        cx: &App,
  896    ) -> Option<Box<dyn SerializableItemHandle>> {
  897        let this = cx.try_global::<Self>()?;
  898        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  899        Some((descriptor.view_to_serializable_item)(view))
  900    }
  901
  902    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  903        let this = cx.try_global::<Self>()?;
  904        this.descriptors_by_kind.get(item_kind).copied()
  905    }
  906}
  907
  908pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  909    let serialized_item_kind = I::serialized_item_kind();
  910
  911    let registry = cx.default_global::<SerializableItemRegistry>();
  912    let descriptor = SerializableItemDescriptor {
  913        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  914            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  915            cx.foreground_executor()
  916                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  917        },
  918        cleanup: |workspace_id, loaded_items, window, cx| {
  919            I::cleanup(workspace_id, loaded_items, window, cx)
  920        },
  921        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  922    };
  923    registry
  924        .descriptors_by_kind
  925        .insert(Arc::from(serialized_item_kind), descriptor);
  926    registry
  927        .descriptors_by_type
  928        .insert(TypeId::of::<I>(), descriptor);
  929}
  930
  931pub struct AppState {
  932    pub languages: Arc<LanguageRegistry>,
  933    pub client: Arc<Client>,
  934    pub user_store: Entity<UserStore>,
  935    pub workspace_store: Entity<WorkspaceStore>,
  936    pub fs: Arc<dyn fs::Fs>,
  937    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  938    pub node_runtime: NodeRuntime,
  939    pub session: Entity<AppSession>,
  940}
  941
  942struct GlobalAppState(Weak<AppState>);
  943
  944impl Global for GlobalAppState {}
  945
  946pub struct WorkspaceStore {
  947    workspaces: HashSet<WindowHandle<Workspace>>,
  948    client: Arc<Client>,
  949    _subscriptions: Vec<client::Subscription>,
  950}
  951
  952#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  953pub enum CollaboratorId {
  954    PeerId(PeerId),
  955    Agent,
  956}
  957
  958impl From<PeerId> for CollaboratorId {
  959    fn from(peer_id: PeerId) -> Self {
  960        CollaboratorId::PeerId(peer_id)
  961    }
  962}
  963
  964impl From<&PeerId> for CollaboratorId {
  965    fn from(peer_id: &PeerId) -> Self {
  966        CollaboratorId::PeerId(*peer_id)
  967    }
  968}
  969
  970#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  971struct Follower {
  972    project_id: Option<u64>,
  973    peer_id: PeerId,
  974}
  975
  976impl AppState {
  977    #[track_caller]
  978    pub fn global(cx: &App) -> Weak<Self> {
  979        cx.global::<GlobalAppState>().0.clone()
  980    }
  981    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  982        cx.try_global::<GlobalAppState>()
  983            .map(|state| state.0.clone())
  984    }
  985    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  986        cx.set_global(GlobalAppState(state));
  987    }
  988
  989    #[cfg(any(test, feature = "test-support"))]
  990    pub fn test(cx: &mut App) -> Arc<Self> {
  991        use fs::Fs;
  992        use node_runtime::NodeRuntime;
  993        use session::Session;
  994        use settings::SettingsStore;
  995
  996        if !cx.has_global::<SettingsStore>() {
  997            let settings_store = SettingsStore::test(cx);
  998            cx.set_global(settings_store);
  999        }
 1000
 1001        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1002        <dyn Fs>::set_global(fs.clone(), cx);
 1003        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1004        let clock = Arc::new(clock::FakeSystemClock::new());
 1005        let http_client = http_client::FakeHttpClient::with_404_response();
 1006        let client = Client::new(clock, http_client, cx);
 1007        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1008        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1009        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1010
 1011        theme::init(theme::LoadThemes::JustBase, cx);
 1012        client::init(&client, cx);
 1013
 1014        Arc::new(Self {
 1015            client,
 1016            fs,
 1017            languages,
 1018            user_store,
 1019            workspace_store,
 1020            node_runtime: NodeRuntime::unavailable(),
 1021            build_window_options: |_, _| Default::default(),
 1022            session,
 1023        })
 1024    }
 1025}
 1026
 1027struct DelayedDebouncedEditAction {
 1028    task: Option<Task<()>>,
 1029    cancel_channel: Option<oneshot::Sender<()>>,
 1030}
 1031
 1032impl DelayedDebouncedEditAction {
 1033    fn new() -> DelayedDebouncedEditAction {
 1034        DelayedDebouncedEditAction {
 1035            task: None,
 1036            cancel_channel: None,
 1037        }
 1038    }
 1039
 1040    fn fire_new<F>(
 1041        &mut self,
 1042        delay: Duration,
 1043        window: &mut Window,
 1044        cx: &mut Context<Workspace>,
 1045        func: F,
 1046    ) where
 1047        F: 'static
 1048            + Send
 1049            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1050    {
 1051        if let Some(channel) = self.cancel_channel.take() {
 1052            _ = channel.send(());
 1053        }
 1054
 1055        let (sender, mut receiver) = oneshot::channel::<()>();
 1056        self.cancel_channel = Some(sender);
 1057
 1058        let previous_task = self.task.take();
 1059        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1060            let mut timer = cx.background_executor().timer(delay).fuse();
 1061            if let Some(previous_task) = previous_task {
 1062                previous_task.await;
 1063            }
 1064
 1065            futures::select_biased! {
 1066                _ = receiver => return,
 1067                    _ = timer => {}
 1068            }
 1069
 1070            if let Some(result) = workspace
 1071                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1072                .log_err()
 1073            {
 1074                result.await.log_err();
 1075            }
 1076        }));
 1077    }
 1078}
 1079
 1080pub enum Event {
 1081    PaneAdded(Entity<Pane>),
 1082    PaneRemoved,
 1083    ItemAdded {
 1084        item: Box<dyn ItemHandle>,
 1085    },
 1086    ActiveItemChanged,
 1087    ItemRemoved {
 1088        item_id: EntityId,
 1089    },
 1090    UserSavedItem {
 1091        pane: WeakEntity<Pane>,
 1092        item: Box<dyn WeakItemHandle>,
 1093        save_intent: SaveIntent,
 1094    },
 1095    ContactRequestedJoin(u64),
 1096    WorkspaceCreated(WeakEntity<Workspace>),
 1097    OpenBundledFile {
 1098        text: Cow<'static, str>,
 1099        title: &'static str,
 1100        language: &'static str,
 1101    },
 1102    ZoomChanged,
 1103    ModalOpened,
 1104}
 1105
 1106#[derive(Debug)]
 1107pub enum OpenVisible {
 1108    All,
 1109    None,
 1110    OnlyFiles,
 1111    OnlyDirectories,
 1112}
 1113
 1114enum WorkspaceLocation {
 1115    // Valid local paths or SSH project to serialize
 1116    Location(SerializedWorkspaceLocation, PathList),
 1117    // No valid location found hence clear session id
 1118    DetachFromSession,
 1119    // No valid location found to serialize
 1120    None,
 1121}
 1122
 1123type PromptForNewPath = Box<
 1124    dyn Fn(
 1125        &mut Workspace,
 1126        DirectoryLister,
 1127        &mut Window,
 1128        &mut Context<Workspace>,
 1129    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1130>;
 1131
 1132type PromptForOpenPath = Box<
 1133    dyn Fn(
 1134        &mut Workspace,
 1135        DirectoryLister,
 1136        &mut Window,
 1137        &mut Context<Workspace>,
 1138    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1139>;
 1140
 1141#[derive(Default)]
 1142struct DispatchingKeystrokes {
 1143    dispatched: HashSet<Vec<Keystroke>>,
 1144    queue: VecDeque<Keystroke>,
 1145    task: Option<Shared<Task<()>>>,
 1146}
 1147
 1148/// Collects everything project-related for a certain window opened.
 1149/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1150///
 1151/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1152/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1153/// that can be used to register a global action to be triggered from any place in the window.
 1154pub struct Workspace {
 1155    weak_self: WeakEntity<Self>,
 1156    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1157    zoomed: Option<AnyWeakView>,
 1158    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1159    zoomed_position: Option<DockPosition>,
 1160    center: PaneGroup,
 1161    left_dock: Entity<Dock>,
 1162    bottom_dock: Entity<Dock>,
 1163    right_dock: Entity<Dock>,
 1164    panes: Vec<Entity<Pane>>,
 1165    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1166    active_pane: Entity<Pane>,
 1167    last_active_center_pane: Option<WeakEntity<Pane>>,
 1168    last_active_view_id: Option<proto::ViewId>,
 1169    status_bar: Entity<StatusBar>,
 1170    modal_layer: Entity<ModalLayer>,
 1171    toast_layer: Entity<ToastLayer>,
 1172    titlebar_item: Option<AnyView>,
 1173    notifications: Notifications,
 1174    suppressed_notifications: HashSet<NotificationId>,
 1175    project: Entity<Project>,
 1176    follower_states: HashMap<CollaboratorId, FollowerState>,
 1177    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1178    window_edited: bool,
 1179    last_window_title: Option<String>,
 1180    dirty_items: HashMap<EntityId, Subscription>,
 1181    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1182    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1183    database_id: Option<WorkspaceId>,
 1184    app_state: Arc<AppState>,
 1185    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1186    _subscriptions: Vec<Subscription>,
 1187    _apply_leader_updates: Task<Result<()>>,
 1188    _observe_current_user: Task<Result<()>>,
 1189    _schedule_serialize_workspace: Option<Task<()>>,
 1190    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1191    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    next_modal_placement: Option<ModalPlacement>,
 1207}
 1208
 1209impl EventEmitter<Event> for Workspace {}
 1210
 1211#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1212pub struct ViewId {
 1213    pub creator: CollaboratorId,
 1214    pub id: u64,
 1215}
 1216
 1217pub struct FollowerState {
 1218    center_pane: Entity<Pane>,
 1219    dock_pane: Option<Entity<Pane>>,
 1220    active_view_id: Option<ViewId>,
 1221    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1222}
 1223
 1224struct FollowerView {
 1225    view: Box<dyn FollowableItemHandle>,
 1226    location: Option<proto::PanelId>,
 1227}
 1228
 1229impl Workspace {
 1230    pub fn new(
 1231        workspace_id: Option<WorkspaceId>,
 1232        project: Entity<Project>,
 1233        app_state: Arc<AppState>,
 1234        window: &mut Window,
 1235        cx: &mut Context<Self>,
 1236    ) -> Self {
 1237        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1238            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1239                if let TrustedWorktreesEvent::Trusted(..) = e {
 1240                    // Do not persist auto trusted worktrees
 1241                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1242                        worktrees_store.update(cx, |worktrees_store, cx| {
 1243                            worktrees_store.schedule_serialization(
 1244                                cx,
 1245                                |new_trusted_worktrees, cx| {
 1246                                    let timeout =
 1247                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1248                                    cx.background_spawn(async move {
 1249                                        timeout.await;
 1250                                        persistence::DB
 1251                                            .save_trusted_worktrees(new_trusted_worktrees)
 1252                                            .await
 1253                                            .log_err();
 1254                                    })
 1255                                },
 1256                            )
 1257                        });
 1258                    }
 1259                }
 1260            })
 1261            .detach();
 1262
 1263            cx.observe_global::<SettingsStore>(|_, cx| {
 1264                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1265                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1266                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1267                            trusted_worktrees.auto_trust_all(cx);
 1268                        })
 1269                    }
 1270                }
 1271            })
 1272            .detach();
 1273        }
 1274
 1275        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1276            match event {
 1277                project::Event::RemoteIdChanged(_) => {
 1278                    this.update_window_title(window, cx);
 1279                }
 1280
 1281                project::Event::CollaboratorLeft(peer_id) => {
 1282                    this.collaborator_left(*peer_id, window, cx);
 1283                }
 1284
 1285                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1286                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1287                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1288                            trusted_worktrees.can_trust(
 1289                                &this.project().read(cx).worktree_store(),
 1290                                *worktree_id,
 1291                                cx,
 1292                            );
 1293                        });
 1294                    }
 1295                }
 1296
 1297                project::Event::WorktreeRemoved(_) => {
 1298                    this.update_worktree_data(window, cx);
 1299                }
 1300
 1301                project::Event::WorktreeAdded(worktree_id) => {
 1302                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1303                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1304                            trusted_worktrees.can_trust(
 1305                                &this.project().read(cx).worktree_store(),
 1306                                *worktree_id,
 1307                                cx,
 1308                            );
 1309                        });
 1310                    }
 1311                    this.update_worktree_data(window, cx);
 1312                }
 1313
 1314                project::Event::DisconnectedFromHost => {
 1315                    this.update_window_edited(window, cx);
 1316                    let leaders_to_unfollow =
 1317                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1318                    for leader_id in leaders_to_unfollow {
 1319                        this.unfollow(leader_id, window, cx);
 1320                    }
 1321                }
 1322
 1323                project::Event::DisconnectedFromSshRemote => {
 1324                    this.update_window_edited(window, cx);
 1325                }
 1326
 1327                project::Event::Closed => {
 1328                    window.remove_window();
 1329                }
 1330
 1331                project::Event::DeletedEntry(_, entry_id) => {
 1332                    for pane in this.panes.iter() {
 1333                        pane.update(cx, |pane, cx| {
 1334                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1335                        });
 1336                    }
 1337                }
 1338
 1339                project::Event::Toast {
 1340                    notification_id,
 1341                    message,
 1342                } => this.show_notification(
 1343                    NotificationId::named(notification_id.clone()),
 1344                    cx,
 1345                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1346                ),
 1347
 1348                project::Event::HideToast { notification_id } => {
 1349                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1350                }
 1351
 1352                project::Event::LanguageServerPrompt(request) => {
 1353                    struct LanguageServerPrompt;
 1354
 1355                    let mut hasher = DefaultHasher::new();
 1356                    request.lsp_name.as_str().hash(&mut hasher);
 1357                    let id = hasher.finish();
 1358
 1359                    this.show_notification(
 1360                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1361                        cx,
 1362                        |cx| {
 1363                            cx.new(|cx| {
 1364                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1365                            })
 1366                        },
 1367                    );
 1368                }
 1369
 1370                project::Event::AgentLocationChanged => {
 1371                    this.handle_agent_location_changed(window, cx)
 1372                }
 1373
 1374                _ => {}
 1375            }
 1376            cx.notify()
 1377        })
 1378        .detach();
 1379
 1380        cx.subscribe_in(
 1381            &project.read(cx).breakpoint_store(),
 1382            window,
 1383            |workspace, _, event, window, cx| match event {
 1384                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1385                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1386                    workspace.serialize_workspace(window, cx);
 1387                }
 1388                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1389            },
 1390        )
 1391        .detach();
 1392        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1393            cx.subscribe_in(
 1394                &toolchain_store,
 1395                window,
 1396                |workspace, _, event, window, cx| match event {
 1397                    ToolchainStoreEvent::CustomToolchainsModified => {
 1398                        workspace.serialize_workspace(window, cx);
 1399                    }
 1400                    _ => {}
 1401                },
 1402            )
 1403            .detach();
 1404        }
 1405
 1406        cx.on_focus_lost(window, |this, window, cx| {
 1407            let focus_handle = this.focus_handle(cx);
 1408            window.focus(&focus_handle, cx);
 1409        })
 1410        .detach();
 1411
 1412        let weak_handle = cx.entity().downgrade();
 1413        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1414
 1415        let center_pane = cx.new(|cx| {
 1416            let mut center_pane = Pane::new(
 1417                weak_handle.clone(),
 1418                project.clone(),
 1419                pane_history_timestamp.clone(),
 1420                None,
 1421                NewFile.boxed_clone(),
 1422                true,
 1423                window,
 1424                cx,
 1425            );
 1426            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1427            center_pane
 1428        });
 1429        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1430            .detach();
 1431
 1432        window.focus(&center_pane.focus_handle(cx), cx);
 1433
 1434        cx.emit(Event::PaneAdded(center_pane.clone()));
 1435
 1436        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1437        app_state.workspace_store.update(cx, |store, _| {
 1438            store.workspaces.insert(window_handle);
 1439        });
 1440
 1441        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1442        let mut connection_status = app_state.client.status();
 1443        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1444            current_user.next().await;
 1445            connection_status.next().await;
 1446            let mut stream =
 1447                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1448
 1449            while stream.recv().await.is_some() {
 1450                this.update(cx, |_, cx| cx.notify())?;
 1451            }
 1452            anyhow::Ok(())
 1453        });
 1454
 1455        // All leader updates are enqueued and then processed in a single task, so
 1456        // that each asynchronous operation can be run in order.
 1457        let (leader_updates_tx, mut leader_updates_rx) =
 1458            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1459        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1460            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1461                Self::process_leader_update(&this, leader_id, update, cx)
 1462                    .await
 1463                    .log_err();
 1464            }
 1465
 1466            Ok(())
 1467        });
 1468
 1469        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1470        let modal_layer = cx.new(|_| ModalLayer::new());
 1471        let toast_layer = cx.new(|_| ToastLayer::new());
 1472        cx.subscribe(
 1473            &modal_layer,
 1474            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1475                cx.emit(Event::ModalOpened);
 1476            },
 1477        )
 1478        .detach();
 1479
 1480        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1481        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1482        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1483        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1484        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1485        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1486        let status_bar = cx.new(|cx| {
 1487            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1488            status_bar.add_left_item(left_dock_buttons, window, cx);
 1489            status_bar.add_right_item(right_dock_buttons, window, cx);
 1490            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1491            status_bar
 1492        });
 1493
 1494        let session_id = app_state.session.read(cx).id().to_owned();
 1495
 1496        let mut active_call = None;
 1497        if let Some(call) = ActiveCall::try_global(cx) {
 1498            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1499            active_call = Some((call, subscriptions));
 1500        }
 1501
 1502        let (serializable_items_tx, serializable_items_rx) =
 1503            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1504        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1505            Self::serialize_items(&this, serializable_items_rx, cx).await
 1506        });
 1507
 1508        let subscriptions = vec![
 1509            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1510            cx.observe_window_bounds(window, move |this, window, cx| {
 1511                if this.bounds_save_task_queued.is_some() {
 1512                    return;
 1513                }
 1514                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1515                    cx.background_executor()
 1516                        .timer(Duration::from_millis(100))
 1517                        .await;
 1518                    this.update_in(cx, |this, window, cx| {
 1519                        if let Some(display) = window.display(cx)
 1520                            && let Ok(display_uuid) = display.uuid()
 1521                        {
 1522                            let window_bounds = window.inner_window_bounds();
 1523                            let has_paths = !this.root_paths(cx).is_empty();
 1524                            if !has_paths {
 1525                                cx.background_executor()
 1526                                    .spawn(persistence::write_default_window_bounds(
 1527                                        window_bounds,
 1528                                        display_uuid,
 1529                                    ))
 1530                                    .detach_and_log_err(cx);
 1531                            }
 1532                            if let Some(database_id) = workspace_id {
 1533                                cx.background_executor()
 1534                                    .spawn(DB.set_window_open_status(
 1535                                        database_id,
 1536                                        SerializedWindowBounds(window_bounds),
 1537                                        display_uuid,
 1538                                    ))
 1539                                    .detach_and_log_err(cx);
 1540                            } else {
 1541                                cx.background_executor()
 1542                                    .spawn(persistence::write_default_window_bounds(
 1543                                        window_bounds,
 1544                                        display_uuid,
 1545                                    ))
 1546                                    .detach_and_log_err(cx);
 1547                            }
 1548                        }
 1549                        this.bounds_save_task_queued.take();
 1550                    })
 1551                    .ok();
 1552                }));
 1553                cx.notify();
 1554            }),
 1555            cx.observe_window_appearance(window, |_, window, cx| {
 1556                let window_appearance = window.appearance();
 1557
 1558                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1559
 1560                GlobalTheme::reload_theme(cx);
 1561                GlobalTheme::reload_icon_theme(cx);
 1562            }),
 1563            cx.on_release(move |this, cx| {
 1564                this.app_state.workspace_store.update(cx, move |store, _| {
 1565                    store.workspaces.remove(&window_handle);
 1566                })
 1567            }),
 1568        ];
 1569
 1570        cx.defer_in(window, move |this, window, cx| {
 1571            this.update_window_title(window, cx);
 1572            this.show_initial_notifications(cx);
 1573        });
 1574
 1575        let mut center = PaneGroup::new(center_pane.clone());
 1576        center.set_is_center(true);
 1577        center.mark_positions(cx);
 1578
 1579        Workspace {
 1580            weak_self: weak_handle.clone(),
 1581            zoomed: None,
 1582            zoomed_position: None,
 1583            previous_dock_drag_coordinates: None,
 1584            center,
 1585            panes: vec![center_pane.clone()],
 1586            panes_by_item: Default::default(),
 1587            active_pane: center_pane.clone(),
 1588            last_active_center_pane: Some(center_pane.downgrade()),
 1589            last_active_view_id: None,
 1590            status_bar,
 1591            modal_layer,
 1592            toast_layer,
 1593            titlebar_item: None,
 1594            notifications: Notifications::default(),
 1595            suppressed_notifications: HashSet::default(),
 1596            left_dock,
 1597            bottom_dock,
 1598            right_dock,
 1599            project: project.clone(),
 1600            follower_states: Default::default(),
 1601            last_leaders_by_pane: Default::default(),
 1602            dispatching_keystrokes: Default::default(),
 1603            window_edited: false,
 1604            last_window_title: None,
 1605            dirty_items: Default::default(),
 1606            active_call,
 1607            database_id: workspace_id,
 1608            app_state,
 1609            _observe_current_user,
 1610            _apply_leader_updates,
 1611            _schedule_serialize_workspace: None,
 1612            _schedule_serialize_ssh_paths: None,
 1613            leader_updates_tx,
 1614            _subscriptions: subscriptions,
 1615            pane_history_timestamp,
 1616            workspace_actions: Default::default(),
 1617            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1618            bounds: Default::default(),
 1619            centered_layout: false,
 1620            bounds_save_task_queued: None,
 1621            on_prompt_for_new_path: None,
 1622            on_prompt_for_open_path: None,
 1623            terminal_provider: None,
 1624            debugger_provider: None,
 1625            serializable_items_tx,
 1626            _items_serializer,
 1627            session_id: Some(session_id),
 1628
 1629            scheduled_tasks: Vec::new(),
 1630            last_open_dock_positions: Vec::new(),
 1631            removing: false,
 1632            utility_panes: UtilityPaneState::default(),
 1633            next_modal_placement: None,
 1634        }
 1635    }
 1636
 1637    pub fn new_local(
 1638        abs_paths: Vec<PathBuf>,
 1639        app_state: Arc<AppState>,
 1640        requesting_window: Option<WindowHandle<Workspace>>,
 1641        env: Option<HashMap<String, String>>,
 1642        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1643        cx: &mut App,
 1644    ) -> Task<
 1645        anyhow::Result<(
 1646            WindowHandle<Workspace>,
 1647            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1648        )>,
 1649    > {
 1650        let project_handle = Project::local(
 1651            app_state.client.clone(),
 1652            app_state.node_runtime.clone(),
 1653            app_state.user_store.clone(),
 1654            app_state.languages.clone(),
 1655            app_state.fs.clone(),
 1656            env,
 1657            true,
 1658            cx,
 1659        );
 1660
 1661        cx.spawn(async move |cx| {
 1662            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1663            for path in abs_paths.into_iter() {
 1664                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1665                    paths_to_open.push(canonical)
 1666                } else {
 1667                    paths_to_open.push(path)
 1668                }
 1669            }
 1670
 1671            let serialized_workspace =
 1672                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1673
 1674            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1675                paths_to_open = paths.ordered_paths().cloned().collect();
 1676                if !paths.is_lexicographically_ordered() {
 1677                    project_handle
 1678                        .update(cx, |project, cx| {
 1679                            project.set_worktrees_reordered(true, cx);
 1680                        })
 1681                        .log_err();
 1682                }
 1683            }
 1684
 1685            // Get project paths for all of the abs_paths
 1686            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1687                Vec::with_capacity(paths_to_open.len());
 1688
 1689            for path in paths_to_open.into_iter() {
 1690                if let Some((_, project_entry)) = cx
 1691                    .update(|cx| {
 1692                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1693                    })?
 1694                    .await
 1695                    .log_err()
 1696                {
 1697                    project_paths.push((path, Some(project_entry)));
 1698                } else {
 1699                    project_paths.push((path, None));
 1700                }
 1701            }
 1702
 1703            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1704                serialized_workspace.id
 1705            } else {
 1706                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1707            };
 1708
 1709            let toolchains = DB.toolchains(workspace_id).await?;
 1710
 1711            for (toolchain, worktree_path, path) in toolchains {
 1712                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1713                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1714                    this.find_worktree(&worktree_path, cx)
 1715                        .and_then(|(worktree, rel_path)| {
 1716                            if rel_path.is_empty() {
 1717                                Some(worktree.read(cx).id())
 1718                            } else {
 1719                                None
 1720                            }
 1721                        })
 1722                })?
 1723                else {
 1724                    // We did not find a worktree with a given path, but that's whatever.
 1725                    continue;
 1726                };
 1727                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1728                    continue;
 1729                }
 1730
 1731                project_handle
 1732                    .update(cx, |this, cx| {
 1733                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1734                    })?
 1735                    .await;
 1736            }
 1737            if let Some(workspace) = serialized_workspace.as_ref() {
 1738                project_handle.update(cx, |this, cx| {
 1739                    for (scope, toolchains) in &workspace.user_toolchains {
 1740                        for toolchain in toolchains {
 1741                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1742                        }
 1743                    }
 1744                })?;
 1745            }
 1746
 1747            let window = if let Some(window) = requesting_window {
 1748                let centered_layout = serialized_workspace
 1749                    .as_ref()
 1750                    .map(|w| w.centered_layout)
 1751                    .unwrap_or(false);
 1752
 1753                cx.update_window(window.into(), |_, window, cx| {
 1754                    window.replace_root(cx, |window, cx| {
 1755                        let mut workspace = Workspace::new(
 1756                            Some(workspace_id),
 1757                            project_handle.clone(),
 1758                            app_state.clone(),
 1759                            window,
 1760                            cx,
 1761                        );
 1762
 1763                        workspace.centered_layout = centered_layout;
 1764
 1765                        // Call init callback to add items before window renders
 1766                        if let Some(init) = init {
 1767                            init(&mut workspace, window, cx);
 1768                        }
 1769
 1770                        workspace
 1771                    });
 1772                })?;
 1773                window
 1774            } else {
 1775                let window_bounds_override = window_bounds_env_override();
 1776
 1777                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1778                    (Some(WindowBounds::Windowed(bounds)), None)
 1779                } else if let Some(workspace) = serialized_workspace.as_ref()
 1780                    && let Some(display) = workspace.display
 1781                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1782                {
 1783                    // Reopening an existing workspace - restore its saved bounds
 1784                    (Some(bounds.0), Some(display))
 1785                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1786                    // New or empty workspace - use the last known window bounds
 1787                    (Some(bounds), Some(display))
 1788                } else {
 1789                    // New window - let GPUI's default_bounds() handle cascading
 1790                    (None, None)
 1791                };
 1792
 1793                // Use the serialized workspace to construct the new window
 1794                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1795                options.window_bounds = window_bounds;
 1796                let centered_layout = serialized_workspace
 1797                    .as_ref()
 1798                    .map(|w| w.centered_layout)
 1799                    .unwrap_or(false);
 1800                cx.open_window(options, {
 1801                    let app_state = app_state.clone();
 1802                    let project_handle = project_handle.clone();
 1803                    move |window, cx| {
 1804                        cx.new(|cx| {
 1805                            let mut workspace = Workspace::new(
 1806                                Some(workspace_id),
 1807                                project_handle,
 1808                                app_state,
 1809                                window,
 1810                                cx,
 1811                            );
 1812                            workspace.centered_layout = centered_layout;
 1813
 1814                            // Call init callback to add items before window renders
 1815                            if let Some(init) = init {
 1816                                init(&mut workspace, window, cx);
 1817                            }
 1818
 1819                            workspace
 1820                        })
 1821                    }
 1822                })?
 1823            };
 1824
 1825            notify_if_database_failed(window, cx);
 1826            let opened_items = window
 1827                .update(cx, |_workspace, window, cx| {
 1828                    open_items(serialized_workspace, project_paths, window, cx)
 1829                })?
 1830                .await
 1831                .unwrap_or_default();
 1832
 1833            window
 1834                .update(cx, |workspace, window, cx| {
 1835                    window.activate_window();
 1836                    workspace.update_history(cx);
 1837                })
 1838                .log_err();
 1839            Ok((window, opened_items))
 1840        })
 1841    }
 1842
 1843    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1844        self.weak_self.clone()
 1845    }
 1846
 1847    pub fn left_dock(&self) -> &Entity<Dock> {
 1848        &self.left_dock
 1849    }
 1850
 1851    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1852        &self.bottom_dock
 1853    }
 1854
 1855    pub fn set_bottom_dock_layout(
 1856        &mut self,
 1857        layout: BottomDockLayout,
 1858        window: &mut Window,
 1859        cx: &mut Context<Self>,
 1860    ) {
 1861        let fs = self.project().read(cx).fs();
 1862        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1863            content.workspace.bottom_dock_layout = Some(layout);
 1864        });
 1865
 1866        cx.notify();
 1867        self.serialize_workspace(window, cx);
 1868    }
 1869
 1870    pub fn right_dock(&self) -> &Entity<Dock> {
 1871        &self.right_dock
 1872    }
 1873
 1874    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1875        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1876    }
 1877
 1878    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1879        match position {
 1880            DockPosition::Left => &self.left_dock,
 1881            DockPosition::Bottom => &self.bottom_dock,
 1882            DockPosition::Right => &self.right_dock,
 1883        }
 1884    }
 1885
 1886    pub fn is_edited(&self) -> bool {
 1887        self.window_edited
 1888    }
 1889
 1890    pub fn add_panel<T: Panel>(
 1891        &mut self,
 1892        panel: Entity<T>,
 1893        window: &mut Window,
 1894        cx: &mut Context<Self>,
 1895    ) {
 1896        let focus_handle = panel.panel_focus_handle(cx);
 1897        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1898            .detach();
 1899
 1900        let dock_position = panel.position(window, cx);
 1901        let dock = self.dock_at_position(dock_position);
 1902
 1903        dock.update(cx, |dock, cx| {
 1904            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1905        });
 1906    }
 1907
 1908    pub fn remove_panel<T: Panel>(
 1909        &mut self,
 1910        panel: &Entity<T>,
 1911        window: &mut Window,
 1912        cx: &mut Context<Self>,
 1913    ) {
 1914        let mut found_in_dock = None;
 1915        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1916            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1917
 1918            if found {
 1919                found_in_dock = Some(dock.clone());
 1920            }
 1921        }
 1922        if let Some(found_in_dock) = found_in_dock {
 1923            let position = found_in_dock.read(cx).position();
 1924            let slot = utility_slot_for_dock_position(position);
 1925            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1926        }
 1927    }
 1928
 1929    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1930        &self.status_bar
 1931    }
 1932
 1933    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1934        StatusBarSettings::get_global(cx).show
 1935    }
 1936
 1937    pub fn app_state(&self) -> &Arc<AppState> {
 1938        &self.app_state
 1939    }
 1940
 1941    pub fn user_store(&self) -> &Entity<UserStore> {
 1942        &self.app_state.user_store
 1943    }
 1944
 1945    pub fn project(&self) -> &Entity<Project> {
 1946        &self.project
 1947    }
 1948
 1949    pub fn path_style(&self, cx: &App) -> PathStyle {
 1950        self.project.read(cx).path_style(cx)
 1951    }
 1952
 1953    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1954        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1955
 1956        for pane_handle in &self.panes {
 1957            let pane = pane_handle.read(cx);
 1958
 1959            for entry in pane.activation_history() {
 1960                history.insert(
 1961                    entry.entity_id,
 1962                    history
 1963                        .get(&entry.entity_id)
 1964                        .cloned()
 1965                        .unwrap_or(0)
 1966                        .max(entry.timestamp),
 1967                );
 1968            }
 1969        }
 1970
 1971        history
 1972    }
 1973
 1974    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1975        let mut recent_item: Option<Entity<T>> = None;
 1976        let mut recent_timestamp = 0;
 1977        for pane_handle in &self.panes {
 1978            let pane = pane_handle.read(cx);
 1979            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1980                pane.items().map(|item| (item.item_id(), item)).collect();
 1981            for entry in pane.activation_history() {
 1982                if entry.timestamp > recent_timestamp
 1983                    && let Some(&item) = item_map.get(&entry.entity_id)
 1984                    && let Some(typed_item) = item.act_as::<T>(cx)
 1985                {
 1986                    recent_timestamp = entry.timestamp;
 1987                    recent_item = Some(typed_item);
 1988                }
 1989            }
 1990        }
 1991        recent_item
 1992    }
 1993
 1994    pub fn recent_navigation_history_iter(
 1995        &self,
 1996        cx: &App,
 1997    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1998        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1999        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2000
 2001        for pane in &self.panes {
 2002            let pane = pane.read(cx);
 2003
 2004            pane.nav_history()
 2005                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2006                    if let Some(fs_path) = &fs_path {
 2007                        abs_paths_opened
 2008                            .entry(fs_path.clone())
 2009                            .or_default()
 2010                            .insert(project_path.clone());
 2011                    }
 2012                    let timestamp = entry.timestamp;
 2013                    match history.entry(project_path) {
 2014                        hash_map::Entry::Occupied(mut entry) => {
 2015                            let (_, old_timestamp) = entry.get();
 2016                            if &timestamp > old_timestamp {
 2017                                entry.insert((fs_path, timestamp));
 2018                            }
 2019                        }
 2020                        hash_map::Entry::Vacant(entry) => {
 2021                            entry.insert((fs_path, timestamp));
 2022                        }
 2023                    }
 2024                });
 2025
 2026            if let Some(item) = pane.active_item()
 2027                && let Some(project_path) = item.project_path(cx)
 2028            {
 2029                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2030
 2031                if let Some(fs_path) = &fs_path {
 2032                    abs_paths_opened
 2033                        .entry(fs_path.clone())
 2034                        .or_default()
 2035                        .insert(project_path.clone());
 2036                }
 2037
 2038                history.insert(project_path, (fs_path, std::usize::MAX));
 2039            }
 2040        }
 2041
 2042        history
 2043            .into_iter()
 2044            .sorted_by_key(|(_, (_, order))| *order)
 2045            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2046            .rev()
 2047            .filter(move |(history_path, abs_path)| {
 2048                let latest_project_path_opened = abs_path
 2049                    .as_ref()
 2050                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2051                    .and_then(|project_paths| {
 2052                        project_paths
 2053                            .iter()
 2054                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2055                    });
 2056
 2057                latest_project_path_opened.is_none_or(|path| path == history_path)
 2058            })
 2059    }
 2060
 2061    pub fn recent_navigation_history(
 2062        &self,
 2063        limit: Option<usize>,
 2064        cx: &App,
 2065    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2066        self.recent_navigation_history_iter(cx)
 2067            .take(limit.unwrap_or(usize::MAX))
 2068            .collect()
 2069    }
 2070
 2071    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2072        for pane in &self.panes {
 2073            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2074        }
 2075    }
 2076
 2077    fn navigate_history(
 2078        &mut self,
 2079        pane: WeakEntity<Pane>,
 2080        mode: NavigationMode,
 2081        window: &mut Window,
 2082        cx: &mut Context<Workspace>,
 2083    ) -> Task<Result<()>> {
 2084        let to_load = if let Some(pane) = pane.upgrade() {
 2085            pane.update(cx, |pane, cx| {
 2086                window.focus(&pane.focus_handle(cx), cx);
 2087                loop {
 2088                    // Retrieve the weak item handle from the history.
 2089                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2090
 2091                    // If the item is still present in this pane, then activate it.
 2092                    if let Some(index) = entry
 2093                        .item
 2094                        .upgrade()
 2095                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2096                    {
 2097                        let prev_active_item_index = pane.active_item_index();
 2098                        pane.nav_history_mut().set_mode(mode);
 2099                        pane.activate_item(index, true, true, window, cx);
 2100                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2101
 2102                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2103                        if let Some(data) = entry.data {
 2104                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2105                        }
 2106
 2107                        if navigated {
 2108                            break None;
 2109                        }
 2110                    } else {
 2111                        // If the item is no longer present in this pane, then retrieve its
 2112                        // path info in order to reopen it.
 2113                        break pane
 2114                            .nav_history()
 2115                            .path_for_item(entry.item.id())
 2116                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2117                    }
 2118                }
 2119            })
 2120        } else {
 2121            None
 2122        };
 2123
 2124        if let Some((project_path, abs_path, entry)) = to_load {
 2125            // If the item was no longer present, then load it again from its previous path, first try the local path
 2126            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2127
 2128            cx.spawn_in(window, async move  |workspace, cx| {
 2129                let open_by_project_path = open_by_project_path.await;
 2130                let mut navigated = false;
 2131                match open_by_project_path
 2132                    .with_context(|| format!("Navigating to {project_path:?}"))
 2133                {
 2134                    Ok((project_entry_id, build_item)) => {
 2135                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2136                            pane.nav_history_mut().set_mode(mode);
 2137                            pane.active_item().map(|p| p.item_id())
 2138                        })?;
 2139
 2140                        pane.update_in(cx, |pane, window, cx| {
 2141                            let item = pane.open_item(
 2142                                project_entry_id,
 2143                                project_path,
 2144                                true,
 2145                                entry.is_preview,
 2146                                true,
 2147                                None,
 2148                                window, cx,
 2149                                build_item,
 2150                            );
 2151                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2152                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2153                            if let Some(data) = entry.data {
 2154                                navigated |= item.navigate(data, window, cx);
 2155                            }
 2156                        })?;
 2157                    }
 2158                    Err(open_by_project_path_e) => {
 2159                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2160                        // and its worktree is now dropped
 2161                        if let Some(abs_path) = abs_path {
 2162                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2163                                pane.nav_history_mut().set_mode(mode);
 2164                                pane.active_item().map(|p| p.item_id())
 2165                            })?;
 2166                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2167                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2168                            })?;
 2169                            match open_by_abs_path
 2170                                .await
 2171                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2172                            {
 2173                                Ok(item) => {
 2174                                    pane.update_in(cx, |pane, window, cx| {
 2175                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2176                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2177                                        if let Some(data) = entry.data {
 2178                                            navigated |= item.navigate(data, window, cx);
 2179                                        }
 2180                                    })?;
 2181                                }
 2182                                Err(open_by_abs_path_e) => {
 2183                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2184                                }
 2185                            }
 2186                        }
 2187                    }
 2188                }
 2189
 2190                if !navigated {
 2191                    workspace
 2192                        .update_in(cx, |workspace, window, cx| {
 2193                            Self::navigate_history(workspace, pane, mode, window, cx)
 2194                        })?
 2195                        .await?;
 2196                }
 2197
 2198                Ok(())
 2199            })
 2200        } else {
 2201            Task::ready(Ok(()))
 2202        }
 2203    }
 2204
 2205    pub fn go_back(
 2206        &mut self,
 2207        pane: WeakEntity<Pane>,
 2208        window: &mut Window,
 2209        cx: &mut Context<Workspace>,
 2210    ) -> Task<Result<()>> {
 2211        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2212    }
 2213
 2214    pub fn go_forward(
 2215        &mut self,
 2216        pane: WeakEntity<Pane>,
 2217        window: &mut Window,
 2218        cx: &mut Context<Workspace>,
 2219    ) -> Task<Result<()>> {
 2220        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2221    }
 2222
 2223    pub fn reopen_closed_item(
 2224        &mut self,
 2225        window: &mut Window,
 2226        cx: &mut Context<Workspace>,
 2227    ) -> Task<Result<()>> {
 2228        self.navigate_history(
 2229            self.active_pane().downgrade(),
 2230            NavigationMode::ReopeningClosedItem,
 2231            window,
 2232            cx,
 2233        )
 2234    }
 2235
 2236    pub fn client(&self) -> &Arc<Client> {
 2237        &self.app_state.client
 2238    }
 2239
 2240    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2241        self.titlebar_item = Some(item);
 2242        cx.notify();
 2243    }
 2244
 2245    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2246        self.on_prompt_for_new_path = Some(prompt)
 2247    }
 2248
 2249    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2250        self.on_prompt_for_open_path = Some(prompt)
 2251    }
 2252
 2253    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2254        self.terminal_provider = Some(Box::new(provider));
 2255    }
 2256
 2257    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2258        self.debugger_provider = Some(Arc::new(provider));
 2259    }
 2260
 2261    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2262        self.debugger_provider.clone()
 2263    }
 2264
 2265    pub fn prompt_for_open_path(
 2266        &mut self,
 2267        path_prompt_options: PathPromptOptions,
 2268        lister: DirectoryLister,
 2269        window: &mut Window,
 2270        cx: &mut Context<Self>,
 2271    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2272        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2273            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2274            let rx = prompt(self, lister, window, cx);
 2275            self.on_prompt_for_open_path = Some(prompt);
 2276            rx
 2277        } else {
 2278            let (tx, rx) = oneshot::channel();
 2279            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2280
 2281            cx.spawn_in(window, async move |workspace, cx| {
 2282                let Ok(result) = abs_path.await else {
 2283                    return Ok(());
 2284                };
 2285
 2286                match result {
 2287                    Ok(result) => {
 2288                        tx.send(result).ok();
 2289                    }
 2290                    Err(err) => {
 2291                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2292                            workspace.show_portal_error(err.to_string(), cx);
 2293                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2294                            let rx = prompt(workspace, lister, window, cx);
 2295                            workspace.on_prompt_for_open_path = Some(prompt);
 2296                            rx
 2297                        })?;
 2298                        if let Ok(path) = rx.await {
 2299                            tx.send(path).ok();
 2300                        }
 2301                    }
 2302                };
 2303                anyhow::Ok(())
 2304            })
 2305            .detach();
 2306
 2307            rx
 2308        }
 2309    }
 2310
 2311    pub fn prompt_for_new_path(
 2312        &mut self,
 2313        lister: DirectoryLister,
 2314        suggested_name: Option<String>,
 2315        window: &mut Window,
 2316        cx: &mut Context<Self>,
 2317    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2318        if self.project.read(cx).is_via_collab()
 2319            || self.project.read(cx).is_via_remote_server()
 2320            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2321        {
 2322            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2323            let rx = prompt(self, lister, window, cx);
 2324            self.on_prompt_for_new_path = Some(prompt);
 2325            return rx;
 2326        }
 2327
 2328        let (tx, rx) = oneshot::channel();
 2329        cx.spawn_in(window, async move |workspace, cx| {
 2330            let abs_path = workspace.update(cx, |workspace, cx| {
 2331                let relative_to = workspace
 2332                    .most_recent_active_path(cx)
 2333                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2334                    .or_else(|| {
 2335                        let project = workspace.project.read(cx);
 2336                        project.visible_worktrees(cx).find_map(|worktree| {
 2337                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2338                        })
 2339                    })
 2340                    .or_else(std::env::home_dir)
 2341                    .unwrap_or_else(|| PathBuf::from(""));
 2342                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2343            })?;
 2344            let abs_path = match abs_path.await? {
 2345                Ok(path) => path,
 2346                Err(err) => {
 2347                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2348                        workspace.show_portal_error(err.to_string(), cx);
 2349
 2350                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2351                        let rx = prompt(workspace, lister, window, cx);
 2352                        workspace.on_prompt_for_new_path = Some(prompt);
 2353                        rx
 2354                    })?;
 2355                    if let Ok(path) = rx.await {
 2356                        tx.send(path).ok();
 2357                    }
 2358                    return anyhow::Ok(());
 2359                }
 2360            };
 2361
 2362            tx.send(abs_path.map(|path| vec![path])).ok();
 2363            anyhow::Ok(())
 2364        })
 2365        .detach();
 2366
 2367        rx
 2368    }
 2369
 2370    pub fn titlebar_item(&self) -> Option<AnyView> {
 2371        self.titlebar_item.clone()
 2372    }
 2373
 2374    /// Call the given callback with a workspace whose project is local.
 2375    ///
 2376    /// If the given workspace has a local project, then it will be passed
 2377    /// to the callback. Otherwise, a new empty window will be created.
 2378    pub fn with_local_workspace<T, F>(
 2379        &mut self,
 2380        window: &mut Window,
 2381        cx: &mut Context<Self>,
 2382        callback: F,
 2383    ) -> Task<Result<T>>
 2384    where
 2385        T: 'static,
 2386        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2387    {
 2388        if self.project.read(cx).is_local() {
 2389            Task::ready(Ok(callback(self, window, cx)))
 2390        } else {
 2391            let env = self.project.read(cx).cli_environment(cx);
 2392            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2393            cx.spawn_in(window, async move |_vh, cx| {
 2394                let (workspace, _) = task.await?;
 2395                workspace.update(cx, callback)
 2396            })
 2397        }
 2398    }
 2399
 2400    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2401        self.project.read(cx).worktrees(cx)
 2402    }
 2403
 2404    pub fn visible_worktrees<'a>(
 2405        &self,
 2406        cx: &'a App,
 2407    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2408        self.project.read(cx).visible_worktrees(cx)
 2409    }
 2410
 2411    #[cfg(any(test, feature = "test-support"))]
 2412    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2413        let futures = self
 2414            .worktrees(cx)
 2415            .filter_map(|worktree| worktree.read(cx).as_local())
 2416            .map(|worktree| worktree.scan_complete())
 2417            .collect::<Vec<_>>();
 2418        async move {
 2419            for future in futures {
 2420                future.await;
 2421            }
 2422        }
 2423    }
 2424
 2425    pub fn close_global(cx: &mut App) {
 2426        cx.defer(|cx| {
 2427            cx.windows().iter().find(|window| {
 2428                window
 2429                    .update(cx, |_, window, _| {
 2430                        if window.is_window_active() {
 2431                            //This can only get called when the window's project connection has been lost
 2432                            //so we don't need to prompt the user for anything and instead just close the window
 2433                            window.remove_window();
 2434                            true
 2435                        } else {
 2436                            false
 2437                        }
 2438                    })
 2439                    .unwrap_or(false)
 2440            });
 2441        });
 2442    }
 2443
 2444    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2445        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2446        cx.spawn_in(window, async move |_, cx| {
 2447            if prepare.await? {
 2448                cx.update(|window, _cx| window.remove_window())?;
 2449            }
 2450            anyhow::Ok(())
 2451        })
 2452        .detach_and_log_err(cx)
 2453    }
 2454
 2455    pub fn move_focused_panel_to_next_position(
 2456        &mut self,
 2457        _: &MoveFocusedPanelToNextPosition,
 2458        window: &mut Window,
 2459        cx: &mut Context<Self>,
 2460    ) {
 2461        let docks = self.all_docks();
 2462        let active_dock = docks
 2463            .into_iter()
 2464            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2465
 2466        if let Some(dock) = active_dock {
 2467            dock.update(cx, |dock, cx| {
 2468                let active_panel = dock
 2469                    .active_panel()
 2470                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2471
 2472                if let Some(panel) = active_panel {
 2473                    panel.move_to_next_position(window, cx);
 2474                }
 2475            })
 2476        }
 2477    }
 2478
 2479    pub fn prepare_to_close(
 2480        &mut self,
 2481        close_intent: CloseIntent,
 2482        window: &mut Window,
 2483        cx: &mut Context<Self>,
 2484    ) -> Task<Result<bool>> {
 2485        let active_call = self.active_call().cloned();
 2486
 2487        cx.spawn_in(window, async move |this, cx| {
 2488            this.update(cx, |this, _| {
 2489                if close_intent == CloseIntent::CloseWindow {
 2490                    this.removing = true;
 2491                }
 2492            })?;
 2493
 2494            let workspace_count = cx.update(|_window, cx| {
 2495                cx.windows()
 2496                    .iter()
 2497                    .filter(|window| window.downcast::<Workspace>().is_some())
 2498                    .count()
 2499            })?;
 2500
 2501            #[cfg(target_os = "macos")]
 2502            let save_last_workspace = false;
 2503
 2504            // On Linux and Windows, closing the last window should restore the last workspace.
 2505            #[cfg(not(target_os = "macos"))]
 2506            let save_last_workspace = {
 2507                let remaining_workspaces = cx.update(|_window, cx| {
 2508                    cx.windows()
 2509                        .iter()
 2510                        .filter_map(|window| window.downcast::<Workspace>())
 2511                        .filter_map(|workspace| {
 2512                            workspace
 2513                                .update(cx, |workspace, _, _| workspace.removing)
 2514                                .ok()
 2515                        })
 2516                        .filter(|removing| !removing)
 2517                        .count()
 2518                })?;
 2519
 2520                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2521            };
 2522
 2523            if let Some(active_call) = active_call
 2524                && workspace_count == 1
 2525                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2526            {
 2527                if close_intent == CloseIntent::CloseWindow {
 2528                    let answer = cx.update(|window, cx| {
 2529                        window.prompt(
 2530                            PromptLevel::Warning,
 2531                            "Do you want to leave the current call?",
 2532                            None,
 2533                            &["Close window and hang up", "Cancel"],
 2534                            cx,
 2535                        )
 2536                    })?;
 2537
 2538                    if answer.await.log_err() == Some(1) {
 2539                        return anyhow::Ok(false);
 2540                    } else {
 2541                        active_call
 2542                            .update(cx, |call, cx| call.hang_up(cx))?
 2543                            .await
 2544                            .log_err();
 2545                    }
 2546                }
 2547                if close_intent == CloseIntent::ReplaceWindow {
 2548                    _ = active_call.update(cx, |this, cx| {
 2549                        let workspace = cx
 2550                            .windows()
 2551                            .iter()
 2552                            .filter_map(|window| window.downcast::<Workspace>())
 2553                            .next()
 2554                            .unwrap();
 2555                        let project = workspace.read(cx)?.project.clone();
 2556                        if project.read(cx).is_shared() {
 2557                            this.unshare_project(project, cx)?;
 2558                        }
 2559                        Ok::<_, anyhow::Error>(())
 2560                    })?;
 2561                }
 2562            }
 2563
 2564            let save_result = this
 2565                .update_in(cx, |this, window, cx| {
 2566                    this.save_all_internal(SaveIntent::Close, window, cx)
 2567                })?
 2568                .await;
 2569
 2570            // If we're not quitting, but closing, we remove the workspace from
 2571            // the current session.
 2572            if close_intent != CloseIntent::Quit
 2573                && !save_last_workspace
 2574                && save_result.as_ref().is_ok_and(|&res| res)
 2575            {
 2576                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2577                    .await;
 2578            }
 2579
 2580            save_result
 2581        })
 2582    }
 2583
 2584    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2585        self.save_all_internal(
 2586            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2587            window,
 2588            cx,
 2589        )
 2590        .detach_and_log_err(cx);
 2591    }
 2592
 2593    fn send_keystrokes(
 2594        &mut self,
 2595        action: &SendKeystrokes,
 2596        window: &mut Window,
 2597        cx: &mut Context<Self>,
 2598    ) {
 2599        let keystrokes: Vec<Keystroke> = action
 2600            .0
 2601            .split(' ')
 2602            .flat_map(|k| Keystroke::parse(k).log_err())
 2603            .map(|k| {
 2604                cx.keyboard_mapper()
 2605                    .map_key_equivalent(k, true)
 2606                    .inner()
 2607                    .clone()
 2608            })
 2609            .collect();
 2610        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2611    }
 2612
 2613    pub fn send_keystrokes_impl(
 2614        &mut self,
 2615        keystrokes: Vec<Keystroke>,
 2616        window: &mut Window,
 2617        cx: &mut Context<Self>,
 2618    ) -> Shared<Task<()>> {
 2619        let mut state = self.dispatching_keystrokes.borrow_mut();
 2620        if !state.dispatched.insert(keystrokes.clone()) {
 2621            cx.propagate();
 2622            return state.task.clone().unwrap();
 2623        }
 2624
 2625        state.queue.extend(keystrokes);
 2626
 2627        let keystrokes = self.dispatching_keystrokes.clone();
 2628        if state.task.is_none() {
 2629            state.task = Some(
 2630                window
 2631                    .spawn(cx, async move |cx| {
 2632                        // limit to 100 keystrokes to avoid infinite recursion.
 2633                        for _ in 0..100 {
 2634                            let mut state = keystrokes.borrow_mut();
 2635                            let Some(keystroke) = state.queue.pop_front() else {
 2636                                state.dispatched.clear();
 2637                                state.task.take();
 2638                                return;
 2639                            };
 2640                            drop(state);
 2641                            cx.update(|window, cx| {
 2642                                let focused = window.focused(cx);
 2643                                window.dispatch_keystroke(keystroke.clone(), cx);
 2644                                if window.focused(cx) != focused {
 2645                                    // dispatch_keystroke may cause the focus to change.
 2646                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2647                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2648                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2649                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2650                                    // )
 2651                                    window.draw(cx).clear();
 2652                                }
 2653                            })
 2654                            .ok();
 2655                        }
 2656
 2657                        *keystrokes.borrow_mut() = Default::default();
 2658                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2659                    })
 2660                    .shared(),
 2661            );
 2662        }
 2663        state.task.clone().unwrap()
 2664    }
 2665
 2666    fn save_all_internal(
 2667        &mut self,
 2668        mut save_intent: SaveIntent,
 2669        window: &mut Window,
 2670        cx: &mut Context<Self>,
 2671    ) -> Task<Result<bool>> {
 2672        if self.project.read(cx).is_disconnected(cx) {
 2673            return Task::ready(Ok(true));
 2674        }
 2675        let dirty_items = self
 2676            .panes
 2677            .iter()
 2678            .flat_map(|pane| {
 2679                pane.read(cx).items().filter_map(|item| {
 2680                    if item.is_dirty(cx) {
 2681                        item.tab_content_text(0, cx);
 2682                        Some((pane.downgrade(), item.boxed_clone()))
 2683                    } else {
 2684                        None
 2685                    }
 2686                })
 2687            })
 2688            .collect::<Vec<_>>();
 2689
 2690        let project = self.project.clone();
 2691        cx.spawn_in(window, async move |workspace, cx| {
 2692            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2693                let (serialize_tasks, remaining_dirty_items) =
 2694                    workspace.update_in(cx, |workspace, window, cx| {
 2695                        let mut remaining_dirty_items = Vec::new();
 2696                        let mut serialize_tasks = Vec::new();
 2697                        for (pane, item) in dirty_items {
 2698                            if let Some(task) = item
 2699                                .to_serializable_item_handle(cx)
 2700                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2701                            {
 2702                                serialize_tasks.push(task);
 2703                            } else {
 2704                                remaining_dirty_items.push((pane, item));
 2705                            }
 2706                        }
 2707                        (serialize_tasks, remaining_dirty_items)
 2708                    })?;
 2709
 2710                futures::future::try_join_all(serialize_tasks).await?;
 2711
 2712                if remaining_dirty_items.len() > 1 {
 2713                    let answer = workspace.update_in(cx, |_, window, cx| {
 2714                        let detail = Pane::file_names_for_prompt(
 2715                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2716                            cx,
 2717                        );
 2718                        window.prompt(
 2719                            PromptLevel::Warning,
 2720                            "Do you want to save all changes in the following files?",
 2721                            Some(&detail),
 2722                            &["Save all", "Discard all", "Cancel"],
 2723                            cx,
 2724                        )
 2725                    })?;
 2726                    match answer.await.log_err() {
 2727                        Some(0) => save_intent = SaveIntent::SaveAll,
 2728                        Some(1) => save_intent = SaveIntent::Skip,
 2729                        Some(2) => return Ok(false),
 2730                        _ => {}
 2731                    }
 2732                }
 2733
 2734                remaining_dirty_items
 2735            } else {
 2736                dirty_items
 2737            };
 2738
 2739            for (pane, item) in dirty_items {
 2740                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2741                    (
 2742                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2743                        item.project_entry_ids(cx),
 2744                    )
 2745                })?;
 2746                if (singleton || !project_entry_ids.is_empty())
 2747                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2748                {
 2749                    return Ok(false);
 2750                }
 2751            }
 2752            Ok(true)
 2753        })
 2754    }
 2755
 2756    pub fn open_workspace_for_paths(
 2757        &mut self,
 2758        replace_current_window: bool,
 2759        paths: Vec<PathBuf>,
 2760        window: &mut Window,
 2761        cx: &mut Context<Self>,
 2762    ) -> Task<Result<()>> {
 2763        let window_handle = window.window_handle().downcast::<Self>();
 2764        let is_remote = self.project.read(cx).is_via_collab();
 2765        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2766        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2767
 2768        let window_to_replace = if replace_current_window {
 2769            window_handle
 2770        } else if is_remote || has_worktree || has_dirty_items {
 2771            None
 2772        } else {
 2773            window_handle
 2774        };
 2775        let app_state = self.app_state.clone();
 2776
 2777        cx.spawn(async move |_, cx| {
 2778            cx.update(|cx| {
 2779                open_paths(
 2780                    &paths,
 2781                    app_state,
 2782                    OpenOptions {
 2783                        replace_window: window_to_replace,
 2784                        ..Default::default()
 2785                    },
 2786                    cx,
 2787                )
 2788            })?
 2789            .await?;
 2790            Ok(())
 2791        })
 2792    }
 2793
 2794    #[allow(clippy::type_complexity)]
 2795    pub fn open_paths(
 2796        &mut self,
 2797        mut abs_paths: Vec<PathBuf>,
 2798        options: OpenOptions,
 2799        pane: Option<WeakEntity<Pane>>,
 2800        window: &mut Window,
 2801        cx: &mut Context<Self>,
 2802    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2803        let fs = self.app_state.fs.clone();
 2804
 2805        // Sort the paths to ensure we add worktrees for parents before their children.
 2806        abs_paths.sort_unstable();
 2807        cx.spawn_in(window, async move |this, cx| {
 2808            let mut tasks = Vec::with_capacity(abs_paths.len());
 2809
 2810            for abs_path in &abs_paths {
 2811                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2812                    OpenVisible::All => Some(true),
 2813                    OpenVisible::None => Some(false),
 2814                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2815                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2816                        Some(None) => Some(true),
 2817                        None => None,
 2818                    },
 2819                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2820                        Some(Some(metadata)) => Some(metadata.is_dir),
 2821                        Some(None) => Some(false),
 2822                        None => None,
 2823                    },
 2824                };
 2825                let project_path = match visible {
 2826                    Some(visible) => match this
 2827                        .update(cx, |this, cx| {
 2828                            Workspace::project_path_for_path(
 2829                                this.project.clone(),
 2830                                abs_path,
 2831                                visible,
 2832                                cx,
 2833                            )
 2834                        })
 2835                        .log_err()
 2836                    {
 2837                        Some(project_path) => project_path.await.log_err(),
 2838                        None => None,
 2839                    },
 2840                    None => None,
 2841                };
 2842
 2843                let this = this.clone();
 2844                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2845                let fs = fs.clone();
 2846                let pane = pane.clone();
 2847                let task = cx.spawn(async move |cx| {
 2848                    let (worktree, project_path) = project_path?;
 2849                    if fs.is_dir(&abs_path).await {
 2850                        this.update(cx, |workspace, cx| {
 2851                            let worktree = worktree.read(cx);
 2852                            let worktree_abs_path = worktree.abs_path();
 2853                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2854                                worktree.root_entry()
 2855                            } else {
 2856                                abs_path
 2857                                    .strip_prefix(worktree_abs_path.as_ref())
 2858                                    .ok()
 2859                                    .and_then(|relative_path| {
 2860                                        let relative_path =
 2861                                            RelPath::new(relative_path, PathStyle::local())
 2862                                                .log_err()?;
 2863                                        worktree.entry_for_path(&relative_path)
 2864                                    })
 2865                            }
 2866                            .map(|entry| entry.id);
 2867                            if let Some(entry_id) = entry_id {
 2868                                workspace.project.update(cx, |_, cx| {
 2869                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2870                                })
 2871                            }
 2872                        })
 2873                        .ok()?;
 2874                        None
 2875                    } else {
 2876                        Some(
 2877                            this.update_in(cx, |this, window, cx| {
 2878                                this.open_path(
 2879                                    project_path,
 2880                                    pane,
 2881                                    options.focus.unwrap_or(true),
 2882                                    window,
 2883                                    cx,
 2884                                )
 2885                            })
 2886                            .ok()?
 2887                            .await,
 2888                        )
 2889                    }
 2890                });
 2891                tasks.push(task);
 2892            }
 2893
 2894            futures::future::join_all(tasks).await
 2895        })
 2896    }
 2897
 2898    pub fn open_resolved_path(
 2899        &mut self,
 2900        path: ResolvedPath,
 2901        window: &mut Window,
 2902        cx: &mut Context<Self>,
 2903    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2904        match path {
 2905            ResolvedPath::ProjectPath { project_path, .. } => {
 2906                self.open_path(project_path, None, true, window, cx)
 2907            }
 2908            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2909                PathBuf::from(path),
 2910                OpenOptions {
 2911                    visible: Some(OpenVisible::None),
 2912                    ..Default::default()
 2913                },
 2914                window,
 2915                cx,
 2916            ),
 2917        }
 2918    }
 2919
 2920    pub fn absolute_path_of_worktree(
 2921        &self,
 2922        worktree_id: WorktreeId,
 2923        cx: &mut Context<Self>,
 2924    ) -> Option<PathBuf> {
 2925        self.project
 2926            .read(cx)
 2927            .worktree_for_id(worktree_id, cx)
 2928            // TODO: use `abs_path` or `root_dir`
 2929            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2930    }
 2931
 2932    fn add_folder_to_project(
 2933        &mut self,
 2934        _: &AddFolderToProject,
 2935        window: &mut Window,
 2936        cx: &mut Context<Self>,
 2937    ) {
 2938        let project = self.project.read(cx);
 2939        if project.is_via_collab() {
 2940            self.show_error(
 2941                &anyhow!("You cannot add folders to someone else's project"),
 2942                cx,
 2943            );
 2944            return;
 2945        }
 2946        let paths = self.prompt_for_open_path(
 2947            PathPromptOptions {
 2948                files: false,
 2949                directories: true,
 2950                multiple: true,
 2951                prompt: None,
 2952            },
 2953            DirectoryLister::Project(self.project.clone()),
 2954            window,
 2955            cx,
 2956        );
 2957        cx.spawn_in(window, async move |this, cx| {
 2958            if let Some(paths) = paths.await.log_err().flatten() {
 2959                let results = this
 2960                    .update_in(cx, |this, window, cx| {
 2961                        this.open_paths(
 2962                            paths,
 2963                            OpenOptions {
 2964                                visible: Some(OpenVisible::All),
 2965                                ..Default::default()
 2966                            },
 2967                            None,
 2968                            window,
 2969                            cx,
 2970                        )
 2971                    })?
 2972                    .await;
 2973                for result in results.into_iter().flatten() {
 2974                    result.log_err();
 2975                }
 2976            }
 2977            anyhow::Ok(())
 2978        })
 2979        .detach_and_log_err(cx);
 2980    }
 2981
 2982    pub fn project_path_for_path(
 2983        project: Entity<Project>,
 2984        abs_path: &Path,
 2985        visible: bool,
 2986        cx: &mut App,
 2987    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2988        let entry = project.update(cx, |project, cx| {
 2989            project.find_or_create_worktree(abs_path, visible, cx)
 2990        });
 2991        cx.spawn(async move |cx| {
 2992            let (worktree, path) = entry.await?;
 2993            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2994            Ok((
 2995                worktree,
 2996                ProjectPath {
 2997                    worktree_id,
 2998                    path: path,
 2999                },
 3000            ))
 3001        })
 3002    }
 3003
 3004    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3005        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3006    }
 3007
 3008    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3009        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3010    }
 3011
 3012    pub fn items_of_type<'a, T: Item>(
 3013        &'a self,
 3014        cx: &'a App,
 3015    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3016        self.panes
 3017            .iter()
 3018            .flat_map(|pane| pane.read(cx).items_of_type())
 3019    }
 3020
 3021    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3022        self.active_pane().read(cx).active_item()
 3023    }
 3024
 3025    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3026        let item = self.active_item(cx)?;
 3027        item.to_any_view().downcast::<I>().ok()
 3028    }
 3029
 3030    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3031        self.active_item(cx).and_then(|item| item.project_path(cx))
 3032    }
 3033
 3034    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3035        self.recent_navigation_history_iter(cx)
 3036            .filter_map(|(path, abs_path)| {
 3037                let worktree = self
 3038                    .project
 3039                    .read(cx)
 3040                    .worktree_for_id(path.worktree_id, cx)?;
 3041                if worktree.read(cx).is_visible() {
 3042                    abs_path
 3043                } else {
 3044                    None
 3045                }
 3046            })
 3047            .next()
 3048    }
 3049
 3050    pub fn save_active_item(
 3051        &mut self,
 3052        save_intent: SaveIntent,
 3053        window: &mut Window,
 3054        cx: &mut App,
 3055    ) -> Task<Result<()>> {
 3056        let project = self.project.clone();
 3057        let pane = self.active_pane();
 3058        let item = pane.read(cx).active_item();
 3059        let pane = pane.downgrade();
 3060
 3061        window.spawn(cx, async move |cx| {
 3062            if let Some(item) = item {
 3063                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3064                    .await
 3065                    .map(|_| ())
 3066            } else {
 3067                Ok(())
 3068            }
 3069        })
 3070    }
 3071
 3072    pub fn close_inactive_items_and_panes(
 3073        &mut self,
 3074        action: &CloseInactiveTabsAndPanes,
 3075        window: &mut Window,
 3076        cx: &mut Context<Self>,
 3077    ) {
 3078        if let Some(task) = self.close_all_internal(
 3079            true,
 3080            action.save_intent.unwrap_or(SaveIntent::Close),
 3081            window,
 3082            cx,
 3083        ) {
 3084            task.detach_and_log_err(cx)
 3085        }
 3086    }
 3087
 3088    pub fn close_all_items_and_panes(
 3089        &mut self,
 3090        action: &CloseAllItemsAndPanes,
 3091        window: &mut Window,
 3092        cx: &mut Context<Self>,
 3093    ) {
 3094        if let Some(task) = self.close_all_internal(
 3095            false,
 3096            action.save_intent.unwrap_or(SaveIntent::Close),
 3097            window,
 3098            cx,
 3099        ) {
 3100            task.detach_and_log_err(cx)
 3101        }
 3102    }
 3103
 3104    fn close_all_internal(
 3105        &mut self,
 3106        retain_active_pane: bool,
 3107        save_intent: SaveIntent,
 3108        window: &mut Window,
 3109        cx: &mut Context<Self>,
 3110    ) -> Option<Task<Result<()>>> {
 3111        let current_pane = self.active_pane();
 3112
 3113        let mut tasks = Vec::new();
 3114
 3115        if retain_active_pane {
 3116            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3117                pane.close_other_items(
 3118                    &CloseOtherItems {
 3119                        save_intent: None,
 3120                        close_pinned: false,
 3121                    },
 3122                    None,
 3123                    window,
 3124                    cx,
 3125                )
 3126            });
 3127
 3128            tasks.push(current_pane_close);
 3129        }
 3130
 3131        for pane in self.panes() {
 3132            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3133                continue;
 3134            }
 3135
 3136            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3137                pane.close_all_items(
 3138                    &CloseAllItems {
 3139                        save_intent: Some(save_intent),
 3140                        close_pinned: false,
 3141                    },
 3142                    window,
 3143                    cx,
 3144                )
 3145            });
 3146
 3147            tasks.push(close_pane_items)
 3148        }
 3149
 3150        if tasks.is_empty() {
 3151            None
 3152        } else {
 3153            Some(cx.spawn_in(window, async move |_, _| {
 3154                for task in tasks {
 3155                    task.await?
 3156                }
 3157                Ok(())
 3158            }))
 3159        }
 3160    }
 3161
 3162    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3163        self.dock_at_position(position).read(cx).is_open()
 3164    }
 3165
 3166    pub fn toggle_dock(
 3167        &mut self,
 3168        dock_side: DockPosition,
 3169        window: &mut Window,
 3170        cx: &mut Context<Self>,
 3171    ) {
 3172        let mut focus_center = false;
 3173        let mut reveal_dock = false;
 3174
 3175        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3176        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3177        if was_visible {
 3178            self.save_open_dock_positions(cx);
 3179        }
 3180
 3181        let dock = self.dock_at_position(dock_side);
 3182        dock.update(cx, |dock, cx| {
 3183            dock.set_open(!was_visible, window, cx);
 3184
 3185            if dock.active_panel().is_none() {
 3186                let Some(panel_ix) = dock
 3187                    .first_enabled_panel_idx(cx)
 3188                    .log_with_level(log::Level::Info)
 3189                else {
 3190                    return;
 3191                };
 3192                dock.activate_panel(panel_ix, window, cx);
 3193            }
 3194
 3195            if let Some(active_panel) = dock.active_panel() {
 3196                if was_visible {
 3197                    if active_panel
 3198                        .panel_focus_handle(cx)
 3199                        .contains_focused(window, cx)
 3200                    {
 3201                        focus_center = true;
 3202                    }
 3203                } else {
 3204                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3205                    window.focus(focus_handle, cx);
 3206                    reveal_dock = true;
 3207                }
 3208            }
 3209        });
 3210
 3211        if reveal_dock {
 3212            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3213        }
 3214
 3215        if focus_center {
 3216            self.active_pane
 3217                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3218        }
 3219
 3220        cx.notify();
 3221        self.serialize_workspace(window, cx);
 3222    }
 3223
 3224    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3225        self.all_docks().into_iter().find(|&dock| {
 3226            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3227        })
 3228    }
 3229
 3230    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3231        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3232            self.save_open_dock_positions(cx);
 3233            dock.update(cx, |dock, cx| {
 3234                dock.set_open(false, window, cx);
 3235            });
 3236            return true;
 3237        }
 3238        false
 3239    }
 3240
 3241    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3242        self.save_open_dock_positions(cx);
 3243        for dock in self.all_docks() {
 3244            dock.update(cx, |dock, cx| {
 3245                dock.set_open(false, window, cx);
 3246            });
 3247        }
 3248
 3249        cx.focus_self(window);
 3250        cx.notify();
 3251        self.serialize_workspace(window, cx);
 3252    }
 3253
 3254    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3255        self.all_docks()
 3256            .into_iter()
 3257            .filter_map(|dock| {
 3258                let dock_ref = dock.read(cx);
 3259                if dock_ref.is_open() {
 3260                    Some(dock_ref.position())
 3261                } else {
 3262                    None
 3263                }
 3264            })
 3265            .collect()
 3266    }
 3267
 3268    /// Saves the positions of currently open docks.
 3269    ///
 3270    /// Updates `last_open_dock_positions` with positions of all currently open
 3271    /// docks, to later be restored by the 'Toggle All Docks' action.
 3272    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3273        let open_dock_positions = self.get_open_dock_positions(cx);
 3274        if !open_dock_positions.is_empty() {
 3275            self.last_open_dock_positions = open_dock_positions;
 3276        }
 3277    }
 3278
 3279    /// Toggles all docks between open and closed states.
 3280    ///
 3281    /// If any docks are open, closes all and remembers their positions. If all
 3282    /// docks are closed, restores the last remembered dock configuration.
 3283    fn toggle_all_docks(
 3284        &mut self,
 3285        _: &ToggleAllDocks,
 3286        window: &mut Window,
 3287        cx: &mut Context<Self>,
 3288    ) {
 3289        let open_dock_positions = self.get_open_dock_positions(cx);
 3290
 3291        if !open_dock_positions.is_empty() {
 3292            self.close_all_docks(window, cx);
 3293        } else if !self.last_open_dock_positions.is_empty() {
 3294            self.restore_last_open_docks(window, cx);
 3295        }
 3296    }
 3297
 3298    /// Reopens docks from the most recently remembered configuration.
 3299    ///
 3300    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3301    /// and clears the stored positions.
 3302    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3303        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3304
 3305        for position in positions_to_open {
 3306            let dock = self.dock_at_position(position);
 3307            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3308        }
 3309
 3310        cx.focus_self(window);
 3311        cx.notify();
 3312        self.serialize_workspace(window, cx);
 3313    }
 3314
 3315    /// Transfer focus to the panel of the given type.
 3316    pub fn focus_panel<T: Panel>(
 3317        &mut self,
 3318        window: &mut Window,
 3319        cx: &mut Context<Self>,
 3320    ) -> Option<Entity<T>> {
 3321        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3322        panel.to_any().downcast().ok()
 3323    }
 3324
 3325    /// Focus the panel of the given type if it isn't already focused. If it is
 3326    /// already focused, then transfer focus back to the workspace center.
 3327    pub fn toggle_panel_focus<T: Panel>(
 3328        &mut self,
 3329        window: &mut Window,
 3330        cx: &mut Context<Self>,
 3331    ) -> bool {
 3332        let mut did_focus_panel = false;
 3333        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3334            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3335            did_focus_panel
 3336        });
 3337        did_focus_panel
 3338    }
 3339
 3340    pub fn activate_panel_for_proto_id(
 3341        &mut self,
 3342        panel_id: PanelId,
 3343        window: &mut Window,
 3344        cx: &mut Context<Self>,
 3345    ) -> Option<Arc<dyn PanelHandle>> {
 3346        let mut panel = None;
 3347        for dock in self.all_docks() {
 3348            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3349                panel = dock.update(cx, |dock, cx| {
 3350                    dock.activate_panel(panel_index, window, cx);
 3351                    dock.set_open(true, window, cx);
 3352                    dock.active_panel().cloned()
 3353                });
 3354                break;
 3355            }
 3356        }
 3357
 3358        if panel.is_some() {
 3359            cx.notify();
 3360            self.serialize_workspace(window, cx);
 3361        }
 3362
 3363        panel
 3364    }
 3365
 3366    /// Focus or unfocus the given panel type, depending on the given callback.
 3367    fn focus_or_unfocus_panel<T: Panel>(
 3368        &mut self,
 3369        window: &mut Window,
 3370        cx: &mut Context<Self>,
 3371        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3372    ) -> Option<Arc<dyn PanelHandle>> {
 3373        let mut result_panel = None;
 3374        let mut serialize = false;
 3375        for dock in self.all_docks() {
 3376            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3377                let mut focus_center = false;
 3378                let panel = dock.update(cx, |dock, cx| {
 3379                    dock.activate_panel(panel_index, window, cx);
 3380
 3381                    let panel = dock.active_panel().cloned();
 3382                    if let Some(panel) = panel.as_ref() {
 3383                        if should_focus(&**panel, window, cx) {
 3384                            dock.set_open(true, window, cx);
 3385                            panel.panel_focus_handle(cx).focus(window, cx);
 3386                        } else {
 3387                            focus_center = true;
 3388                        }
 3389                    }
 3390                    panel
 3391                });
 3392
 3393                if focus_center {
 3394                    self.active_pane
 3395                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3396                }
 3397
 3398                result_panel = panel;
 3399                serialize = true;
 3400                break;
 3401            }
 3402        }
 3403
 3404        if serialize {
 3405            self.serialize_workspace(window, cx);
 3406        }
 3407
 3408        cx.notify();
 3409        result_panel
 3410    }
 3411
 3412    /// Open the panel of the given type
 3413    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3414        for dock in self.all_docks() {
 3415            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3416                dock.update(cx, |dock, cx| {
 3417                    dock.activate_panel(panel_index, window, cx);
 3418                    dock.set_open(true, window, cx);
 3419                });
 3420            }
 3421        }
 3422    }
 3423
 3424    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3425        for dock in self.all_docks().iter() {
 3426            dock.update(cx, |dock, cx| {
 3427                if dock.panel::<T>().is_some() {
 3428                    dock.set_open(false, window, cx)
 3429                }
 3430            })
 3431        }
 3432    }
 3433
 3434    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3435        self.all_docks()
 3436            .iter()
 3437            .find_map(|dock| dock.read(cx).panel::<T>())
 3438    }
 3439
 3440    fn dismiss_zoomed_items_to_reveal(
 3441        &mut self,
 3442        dock_to_reveal: Option<DockPosition>,
 3443        window: &mut Window,
 3444        cx: &mut Context<Self>,
 3445    ) {
 3446        // If a center pane is zoomed, unzoom it.
 3447        for pane in &self.panes {
 3448            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3449                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3450            }
 3451        }
 3452
 3453        // If another dock is zoomed, hide it.
 3454        let mut focus_center = false;
 3455        for dock in self.all_docks() {
 3456            dock.update(cx, |dock, cx| {
 3457                if Some(dock.position()) != dock_to_reveal
 3458                    && let Some(panel) = dock.active_panel()
 3459                    && panel.is_zoomed(window, cx)
 3460                {
 3461                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3462                    dock.set_open(false, window, cx);
 3463                }
 3464            });
 3465        }
 3466
 3467        if focus_center {
 3468            self.active_pane
 3469                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3470        }
 3471
 3472        if self.zoomed_position != dock_to_reveal {
 3473            self.zoomed = None;
 3474            self.zoomed_position = None;
 3475            cx.emit(Event::ZoomChanged);
 3476        }
 3477
 3478        cx.notify();
 3479    }
 3480
 3481    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3482        let pane = cx.new(|cx| {
 3483            let mut pane = Pane::new(
 3484                self.weak_handle(),
 3485                self.project.clone(),
 3486                self.pane_history_timestamp.clone(),
 3487                None,
 3488                NewFile.boxed_clone(),
 3489                true,
 3490                window,
 3491                cx,
 3492            );
 3493            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3494            pane
 3495        });
 3496        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3497            .detach();
 3498        self.panes.push(pane.clone());
 3499
 3500        window.focus(&pane.focus_handle(cx), cx);
 3501
 3502        cx.emit(Event::PaneAdded(pane.clone()));
 3503        pane
 3504    }
 3505
 3506    pub fn add_item_to_center(
 3507        &mut self,
 3508        item: Box<dyn ItemHandle>,
 3509        window: &mut Window,
 3510        cx: &mut Context<Self>,
 3511    ) -> bool {
 3512        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3513            if let Some(center_pane) = center_pane.upgrade() {
 3514                center_pane.update(cx, |pane, cx| {
 3515                    pane.add_item(item, true, true, None, window, cx)
 3516                });
 3517                true
 3518            } else {
 3519                false
 3520            }
 3521        } else {
 3522            false
 3523        }
 3524    }
 3525
 3526    pub fn add_item_to_active_pane(
 3527        &mut self,
 3528        item: Box<dyn ItemHandle>,
 3529        destination_index: Option<usize>,
 3530        focus_item: bool,
 3531        window: &mut Window,
 3532        cx: &mut App,
 3533    ) {
 3534        self.add_item(
 3535            self.active_pane.clone(),
 3536            item,
 3537            destination_index,
 3538            false,
 3539            focus_item,
 3540            window,
 3541            cx,
 3542        )
 3543    }
 3544
 3545    pub fn add_item(
 3546        &mut self,
 3547        pane: Entity<Pane>,
 3548        item: Box<dyn ItemHandle>,
 3549        destination_index: Option<usize>,
 3550        activate_pane: bool,
 3551        focus_item: bool,
 3552        window: &mut Window,
 3553        cx: &mut App,
 3554    ) {
 3555        pane.update(cx, |pane, cx| {
 3556            pane.add_item(
 3557                item,
 3558                activate_pane,
 3559                focus_item,
 3560                destination_index,
 3561                window,
 3562                cx,
 3563            )
 3564        });
 3565    }
 3566
 3567    pub fn split_item(
 3568        &mut self,
 3569        split_direction: SplitDirection,
 3570        item: Box<dyn ItemHandle>,
 3571        window: &mut Window,
 3572        cx: &mut Context<Self>,
 3573    ) {
 3574        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3575        self.add_item(new_pane, item, None, true, true, window, cx);
 3576    }
 3577
 3578    pub fn open_abs_path(
 3579        &mut self,
 3580        abs_path: PathBuf,
 3581        options: OpenOptions,
 3582        window: &mut Window,
 3583        cx: &mut Context<Self>,
 3584    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3585        cx.spawn_in(window, async move |workspace, cx| {
 3586            let open_paths_task_result = workspace
 3587                .update_in(cx, |workspace, window, cx| {
 3588                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3589                })
 3590                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3591                .await;
 3592            anyhow::ensure!(
 3593                open_paths_task_result.len() == 1,
 3594                "open abs path {abs_path:?} task returned incorrect number of results"
 3595            );
 3596            match open_paths_task_result
 3597                .into_iter()
 3598                .next()
 3599                .expect("ensured single task result")
 3600            {
 3601                Some(open_result) => {
 3602                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3603                }
 3604                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3605            }
 3606        })
 3607    }
 3608
 3609    pub fn split_abs_path(
 3610        &mut self,
 3611        abs_path: PathBuf,
 3612        visible: bool,
 3613        window: &mut Window,
 3614        cx: &mut Context<Self>,
 3615    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3616        let project_path_task =
 3617            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3618        cx.spawn_in(window, async move |this, cx| {
 3619            let (_, path) = project_path_task.await?;
 3620            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3621                .await
 3622        })
 3623    }
 3624
 3625    pub fn open_path(
 3626        &mut self,
 3627        path: impl Into<ProjectPath>,
 3628        pane: Option<WeakEntity<Pane>>,
 3629        focus_item: bool,
 3630        window: &mut Window,
 3631        cx: &mut App,
 3632    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3633        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3634    }
 3635
 3636    pub fn open_path_preview(
 3637        &mut self,
 3638        path: impl Into<ProjectPath>,
 3639        pane: Option<WeakEntity<Pane>>,
 3640        focus_item: bool,
 3641        allow_preview: bool,
 3642        activate: bool,
 3643        window: &mut Window,
 3644        cx: &mut App,
 3645    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3646        let pane = pane.unwrap_or_else(|| {
 3647            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3648                self.panes
 3649                    .first()
 3650                    .expect("There must be an active pane")
 3651                    .downgrade()
 3652            })
 3653        });
 3654
 3655        let project_path = path.into();
 3656        let task = self.load_path(project_path.clone(), window, cx);
 3657        window.spawn(cx, async move |cx| {
 3658            let (project_entry_id, build_item) = task.await?;
 3659
 3660            pane.update_in(cx, |pane, window, cx| {
 3661                pane.open_item(
 3662                    project_entry_id,
 3663                    project_path,
 3664                    focus_item,
 3665                    allow_preview,
 3666                    activate,
 3667                    None,
 3668                    window,
 3669                    cx,
 3670                    build_item,
 3671                )
 3672            })
 3673        })
 3674    }
 3675
 3676    pub fn split_path(
 3677        &mut self,
 3678        path: impl Into<ProjectPath>,
 3679        window: &mut Window,
 3680        cx: &mut Context<Self>,
 3681    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3682        self.split_path_preview(path, false, None, window, cx)
 3683    }
 3684
 3685    pub fn split_path_preview(
 3686        &mut self,
 3687        path: impl Into<ProjectPath>,
 3688        allow_preview: bool,
 3689        split_direction: Option<SplitDirection>,
 3690        window: &mut Window,
 3691        cx: &mut Context<Self>,
 3692    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3693        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3694            self.panes
 3695                .first()
 3696                .expect("There must be an active pane")
 3697                .downgrade()
 3698        });
 3699
 3700        if let Member::Pane(center_pane) = &self.center.root
 3701            && center_pane.read(cx).items_len() == 0
 3702        {
 3703            return self.open_path(path, Some(pane), true, window, cx);
 3704        }
 3705
 3706        let project_path = path.into();
 3707        let task = self.load_path(project_path.clone(), window, cx);
 3708        cx.spawn_in(window, async move |this, cx| {
 3709            let (project_entry_id, build_item) = task.await?;
 3710            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3711                let pane = pane.upgrade()?;
 3712                let new_pane = this.split_pane(
 3713                    pane,
 3714                    split_direction.unwrap_or(SplitDirection::Right),
 3715                    window,
 3716                    cx,
 3717                );
 3718                new_pane.update(cx, |new_pane, cx| {
 3719                    Some(new_pane.open_item(
 3720                        project_entry_id,
 3721                        project_path,
 3722                        true,
 3723                        allow_preview,
 3724                        true,
 3725                        None,
 3726                        window,
 3727                        cx,
 3728                        build_item,
 3729                    ))
 3730                })
 3731            })
 3732            .map(|option| option.context("pane was dropped"))?
 3733        })
 3734    }
 3735
 3736    fn load_path(
 3737        &mut self,
 3738        path: ProjectPath,
 3739        window: &mut Window,
 3740        cx: &mut App,
 3741    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3742        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3743        registry.open_path(self.project(), &path, window, cx)
 3744    }
 3745
 3746    pub fn find_project_item<T>(
 3747        &self,
 3748        pane: &Entity<Pane>,
 3749        project_item: &Entity<T::Item>,
 3750        cx: &App,
 3751    ) -> Option<Entity<T>>
 3752    where
 3753        T: ProjectItem,
 3754    {
 3755        use project::ProjectItem as _;
 3756        let project_item = project_item.read(cx);
 3757        let entry_id = project_item.entry_id(cx);
 3758        let project_path = project_item.project_path(cx);
 3759
 3760        let mut item = None;
 3761        if let Some(entry_id) = entry_id {
 3762            item = pane.read(cx).item_for_entry(entry_id, cx);
 3763        }
 3764        if item.is_none()
 3765            && let Some(project_path) = project_path
 3766        {
 3767            item = pane.read(cx).item_for_path(project_path, cx);
 3768        }
 3769
 3770        item.and_then(|item| item.downcast::<T>())
 3771    }
 3772
 3773    pub fn is_project_item_open<T>(
 3774        &self,
 3775        pane: &Entity<Pane>,
 3776        project_item: &Entity<T::Item>,
 3777        cx: &App,
 3778    ) -> bool
 3779    where
 3780        T: ProjectItem,
 3781    {
 3782        self.find_project_item::<T>(pane, project_item, cx)
 3783            .is_some()
 3784    }
 3785
 3786    pub fn open_project_item<T>(
 3787        &mut self,
 3788        pane: Entity<Pane>,
 3789        project_item: Entity<T::Item>,
 3790        activate_pane: bool,
 3791        focus_item: bool,
 3792        keep_old_preview: bool,
 3793        allow_new_preview: bool,
 3794        window: &mut Window,
 3795        cx: &mut Context<Self>,
 3796    ) -> Entity<T>
 3797    where
 3798        T: ProjectItem,
 3799    {
 3800        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3801
 3802        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3803            if !keep_old_preview
 3804                && let Some(old_id) = old_item_id
 3805                && old_id != item.item_id()
 3806            {
 3807                // switching to a different item, so unpreview old active item
 3808                pane.update(cx, |pane, _| {
 3809                    pane.unpreview_item_if_preview(old_id);
 3810                });
 3811            }
 3812
 3813            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3814            if !allow_new_preview {
 3815                pane.update(cx, |pane, _| {
 3816                    pane.unpreview_item_if_preview(item.item_id());
 3817                });
 3818            }
 3819            return item;
 3820        }
 3821
 3822        let item = pane.update(cx, |pane, cx| {
 3823            cx.new(|cx| {
 3824                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3825            })
 3826        });
 3827        let mut destination_index = None;
 3828        pane.update(cx, |pane, cx| {
 3829            if !keep_old_preview && let Some(old_id) = old_item_id {
 3830                pane.unpreview_item_if_preview(old_id);
 3831            }
 3832            if allow_new_preview {
 3833                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3834            }
 3835        });
 3836
 3837        self.add_item(
 3838            pane,
 3839            Box::new(item.clone()),
 3840            destination_index,
 3841            activate_pane,
 3842            focus_item,
 3843            window,
 3844            cx,
 3845        );
 3846        item
 3847    }
 3848
 3849    pub fn open_shared_screen(
 3850        &mut self,
 3851        peer_id: PeerId,
 3852        window: &mut Window,
 3853        cx: &mut Context<Self>,
 3854    ) {
 3855        if let Some(shared_screen) =
 3856            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3857        {
 3858            self.active_pane.update(cx, |pane, cx| {
 3859                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3860            });
 3861        }
 3862    }
 3863
 3864    pub fn activate_item(
 3865        &mut self,
 3866        item: &dyn ItemHandle,
 3867        activate_pane: bool,
 3868        focus_item: bool,
 3869        window: &mut Window,
 3870        cx: &mut App,
 3871    ) -> bool {
 3872        let result = self.panes.iter().find_map(|pane| {
 3873            pane.read(cx)
 3874                .index_for_item(item)
 3875                .map(|ix| (pane.clone(), ix))
 3876        });
 3877        if let Some((pane, ix)) = result {
 3878            pane.update(cx, |pane, cx| {
 3879                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3880            });
 3881            true
 3882        } else {
 3883            false
 3884        }
 3885    }
 3886
 3887    fn activate_pane_at_index(
 3888        &mut self,
 3889        action: &ActivatePane,
 3890        window: &mut Window,
 3891        cx: &mut Context<Self>,
 3892    ) {
 3893        let panes = self.center.panes();
 3894        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3895            window.focus(&pane.focus_handle(cx), cx);
 3896        } else {
 3897            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3898                .detach();
 3899        }
 3900    }
 3901
 3902    fn move_item_to_pane_at_index(
 3903        &mut self,
 3904        action: &MoveItemToPane,
 3905        window: &mut Window,
 3906        cx: &mut Context<Self>,
 3907    ) {
 3908        let panes = self.center.panes();
 3909        let destination = match panes.get(action.destination) {
 3910            Some(&destination) => destination.clone(),
 3911            None => {
 3912                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3913                    return;
 3914                }
 3915                let direction = SplitDirection::Right;
 3916                let split_off_pane = self
 3917                    .find_pane_in_direction(direction, cx)
 3918                    .unwrap_or_else(|| self.active_pane.clone());
 3919                let new_pane = self.add_pane(window, cx);
 3920                if self
 3921                    .center
 3922                    .split(&split_off_pane, &new_pane, direction, cx)
 3923                    .log_err()
 3924                    .is_none()
 3925                {
 3926                    return;
 3927                };
 3928                new_pane
 3929            }
 3930        };
 3931
 3932        if action.clone {
 3933            if self
 3934                .active_pane
 3935                .read(cx)
 3936                .active_item()
 3937                .is_some_and(|item| item.can_split(cx))
 3938            {
 3939                clone_active_item(
 3940                    self.database_id(),
 3941                    &self.active_pane,
 3942                    &destination,
 3943                    action.focus,
 3944                    window,
 3945                    cx,
 3946                );
 3947                return;
 3948            }
 3949        }
 3950        move_active_item(
 3951            &self.active_pane,
 3952            &destination,
 3953            action.focus,
 3954            true,
 3955            window,
 3956            cx,
 3957        )
 3958    }
 3959
 3960    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3961        let panes = self.center.panes();
 3962        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3963            let next_ix = (ix + 1) % panes.len();
 3964            let next_pane = panes[next_ix].clone();
 3965            window.focus(&next_pane.focus_handle(cx), cx);
 3966        }
 3967    }
 3968
 3969    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3970        let panes = self.center.panes();
 3971        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3972            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3973            let prev_pane = panes[prev_ix].clone();
 3974            window.focus(&prev_pane.focus_handle(cx), cx);
 3975        }
 3976    }
 3977
 3978    pub fn activate_pane_in_direction(
 3979        &mut self,
 3980        direction: SplitDirection,
 3981        window: &mut Window,
 3982        cx: &mut App,
 3983    ) {
 3984        use ActivateInDirectionTarget as Target;
 3985        enum Origin {
 3986            LeftDock,
 3987            RightDock,
 3988            BottomDock,
 3989            Center,
 3990        }
 3991
 3992        let origin: Origin = [
 3993            (&self.left_dock, Origin::LeftDock),
 3994            (&self.right_dock, Origin::RightDock),
 3995            (&self.bottom_dock, Origin::BottomDock),
 3996        ]
 3997        .into_iter()
 3998        .find_map(|(dock, origin)| {
 3999            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4000                Some(origin)
 4001            } else {
 4002                None
 4003            }
 4004        })
 4005        .unwrap_or(Origin::Center);
 4006
 4007        let get_last_active_pane = || {
 4008            let pane = self
 4009                .last_active_center_pane
 4010                .clone()
 4011                .unwrap_or_else(|| {
 4012                    self.panes
 4013                        .first()
 4014                        .expect("There must be an active pane")
 4015                        .downgrade()
 4016                })
 4017                .upgrade()?;
 4018            (pane.read(cx).items_len() != 0).then_some(pane)
 4019        };
 4020
 4021        let try_dock =
 4022            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4023
 4024        let target = match (origin, direction) {
 4025            // We're in the center, so we first try to go to a different pane,
 4026            // otherwise try to go to a dock.
 4027            (Origin::Center, direction) => {
 4028                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4029                    Some(Target::Pane(pane))
 4030                } else {
 4031                    match direction {
 4032                        SplitDirection::Up => None,
 4033                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4034                        SplitDirection::Left => try_dock(&self.left_dock),
 4035                        SplitDirection::Right => try_dock(&self.right_dock),
 4036                    }
 4037                }
 4038            }
 4039
 4040            (Origin::LeftDock, SplitDirection::Right) => {
 4041                if let Some(last_active_pane) = get_last_active_pane() {
 4042                    Some(Target::Pane(last_active_pane))
 4043                } else {
 4044                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4045                }
 4046            }
 4047
 4048            (Origin::LeftDock, SplitDirection::Down)
 4049            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4050
 4051            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4052            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4053            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4054
 4055            (Origin::RightDock, SplitDirection::Left) => {
 4056                if let Some(last_active_pane) = get_last_active_pane() {
 4057                    Some(Target::Pane(last_active_pane))
 4058                } else {
 4059                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4060                }
 4061            }
 4062
 4063            _ => None,
 4064        };
 4065
 4066        match target {
 4067            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4068                let pane = pane.read(cx);
 4069                if let Some(item) = pane.active_item() {
 4070                    item.item_focus_handle(cx).focus(window, cx);
 4071                } else {
 4072                    log::error!(
 4073                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4074                    );
 4075                }
 4076            }
 4077            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4078                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4079                window.defer(cx, move |window, cx| {
 4080                    let dock = dock.read(cx);
 4081                    if let Some(panel) = dock.active_panel() {
 4082                        panel.panel_focus_handle(cx).focus(window, cx);
 4083                    } else {
 4084                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4085                    }
 4086                })
 4087            }
 4088            None => {}
 4089        }
 4090    }
 4091
 4092    pub fn move_item_to_pane_in_direction(
 4093        &mut self,
 4094        action: &MoveItemToPaneInDirection,
 4095        window: &mut Window,
 4096        cx: &mut Context<Self>,
 4097    ) {
 4098        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4099            Some(destination) => destination,
 4100            None => {
 4101                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4102                    return;
 4103                }
 4104                let new_pane = self.add_pane(window, cx);
 4105                if self
 4106                    .center
 4107                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4108                    .log_err()
 4109                    .is_none()
 4110                {
 4111                    return;
 4112                };
 4113                new_pane
 4114            }
 4115        };
 4116
 4117        if action.clone {
 4118            if self
 4119                .active_pane
 4120                .read(cx)
 4121                .active_item()
 4122                .is_some_and(|item| item.can_split(cx))
 4123            {
 4124                clone_active_item(
 4125                    self.database_id(),
 4126                    &self.active_pane,
 4127                    &destination,
 4128                    action.focus,
 4129                    window,
 4130                    cx,
 4131                );
 4132                return;
 4133            }
 4134        }
 4135        move_active_item(
 4136            &self.active_pane,
 4137            &destination,
 4138            action.focus,
 4139            true,
 4140            window,
 4141            cx,
 4142        );
 4143    }
 4144
 4145    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4146        self.center.bounding_box_for_pane(pane)
 4147    }
 4148
 4149    pub fn find_pane_in_direction(
 4150        &mut self,
 4151        direction: SplitDirection,
 4152        cx: &App,
 4153    ) -> Option<Entity<Pane>> {
 4154        self.center
 4155            .find_pane_in_direction(&self.active_pane, direction, cx)
 4156            .cloned()
 4157    }
 4158
 4159    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4160        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4161            self.center.swap(&self.active_pane, &to, cx);
 4162            cx.notify();
 4163        }
 4164    }
 4165
 4166    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4167        if self
 4168            .center
 4169            .move_to_border(&self.active_pane, direction, cx)
 4170            .unwrap()
 4171        {
 4172            cx.notify();
 4173        }
 4174    }
 4175
 4176    pub fn resize_pane(
 4177        &mut self,
 4178        axis: gpui::Axis,
 4179        amount: Pixels,
 4180        window: &mut Window,
 4181        cx: &mut Context<Self>,
 4182    ) {
 4183        let docks = self.all_docks();
 4184        let active_dock = docks
 4185            .into_iter()
 4186            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4187
 4188        if let Some(dock) = active_dock {
 4189            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4190                return;
 4191            };
 4192            match dock.read(cx).position() {
 4193                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4194                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4195                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4196            }
 4197        } else {
 4198            self.center
 4199                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4200        }
 4201        cx.notify();
 4202    }
 4203
 4204    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4205        self.center.reset_pane_sizes(cx);
 4206        cx.notify();
 4207    }
 4208
 4209    fn handle_pane_focused(
 4210        &mut self,
 4211        pane: Entity<Pane>,
 4212        window: &mut Window,
 4213        cx: &mut Context<Self>,
 4214    ) {
 4215        // This is explicitly hoisted out of the following check for pane identity as
 4216        // terminal panel panes are not registered as a center panes.
 4217        self.status_bar.update(cx, |status_bar, cx| {
 4218            status_bar.set_active_pane(&pane, window, cx);
 4219        });
 4220        if self.active_pane != pane {
 4221            self.set_active_pane(&pane, window, cx);
 4222        }
 4223
 4224        if self.last_active_center_pane.is_none() {
 4225            self.last_active_center_pane = Some(pane.downgrade());
 4226        }
 4227
 4228        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4229        if pane.read(cx).is_zoomed() {
 4230            self.zoomed = Some(pane.downgrade().into());
 4231        } else {
 4232            self.zoomed = None;
 4233        }
 4234        self.zoomed_position = None;
 4235        cx.emit(Event::ZoomChanged);
 4236        self.update_active_view_for_followers(window, cx);
 4237        pane.update(cx, |pane, _| {
 4238            pane.track_alternate_file_items();
 4239        });
 4240
 4241        cx.notify();
 4242    }
 4243
 4244    fn set_active_pane(
 4245        &mut self,
 4246        pane: &Entity<Pane>,
 4247        window: &mut Window,
 4248        cx: &mut Context<Self>,
 4249    ) {
 4250        self.active_pane = pane.clone();
 4251        self.active_item_path_changed(true, window, cx);
 4252        self.last_active_center_pane = Some(pane.downgrade());
 4253    }
 4254
 4255    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4256        self.update_active_view_for_followers(window, cx);
 4257    }
 4258
 4259    fn handle_pane_event(
 4260        &mut self,
 4261        pane: &Entity<Pane>,
 4262        event: &pane::Event,
 4263        window: &mut Window,
 4264        cx: &mut Context<Self>,
 4265    ) {
 4266        let mut serialize_workspace = true;
 4267        match event {
 4268            pane::Event::AddItem { item } => {
 4269                item.added_to_pane(self, pane.clone(), window, cx);
 4270                cx.emit(Event::ItemAdded {
 4271                    item: item.boxed_clone(),
 4272                });
 4273            }
 4274            pane::Event::Split { direction, mode } => {
 4275                match mode {
 4276                    SplitMode::ClonePane => {
 4277                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4278                            .detach();
 4279                    }
 4280                    SplitMode::EmptyPane => {
 4281                        self.split_pane(pane.clone(), *direction, window, cx);
 4282                    }
 4283                    SplitMode::MovePane => {
 4284                        self.split_and_move(pane.clone(), *direction, window, cx);
 4285                    }
 4286                };
 4287            }
 4288            pane::Event::JoinIntoNext => {
 4289                self.join_pane_into_next(pane.clone(), window, cx);
 4290            }
 4291            pane::Event::JoinAll => {
 4292                self.join_all_panes(window, cx);
 4293            }
 4294            pane::Event::Remove { focus_on_pane } => {
 4295                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4296            }
 4297            pane::Event::ActivateItem {
 4298                local,
 4299                focus_changed,
 4300            } => {
 4301                window.invalidate_character_coordinates();
 4302
 4303                pane.update(cx, |pane, _| {
 4304                    pane.track_alternate_file_items();
 4305                });
 4306                if *local {
 4307                    self.unfollow_in_pane(pane, window, cx);
 4308                }
 4309                serialize_workspace = *focus_changed || pane != self.active_pane();
 4310                if pane == self.active_pane() {
 4311                    self.active_item_path_changed(*focus_changed, window, cx);
 4312                    self.update_active_view_for_followers(window, cx);
 4313                } else if *local {
 4314                    self.set_active_pane(pane, window, cx);
 4315                }
 4316            }
 4317            pane::Event::UserSavedItem { item, save_intent } => {
 4318                cx.emit(Event::UserSavedItem {
 4319                    pane: pane.downgrade(),
 4320                    item: item.boxed_clone(),
 4321                    save_intent: *save_intent,
 4322                });
 4323                serialize_workspace = false;
 4324            }
 4325            pane::Event::ChangeItemTitle => {
 4326                if *pane == self.active_pane {
 4327                    self.active_item_path_changed(false, window, cx);
 4328                }
 4329                serialize_workspace = false;
 4330            }
 4331            pane::Event::RemovedItem { item } => {
 4332                cx.emit(Event::ActiveItemChanged);
 4333                self.update_window_edited(window, cx);
 4334                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4335                    && entry.get().entity_id() == pane.entity_id()
 4336                {
 4337                    entry.remove();
 4338                }
 4339                cx.emit(Event::ItemRemoved {
 4340                    item_id: item.item_id(),
 4341                });
 4342            }
 4343            pane::Event::Focus => {
 4344                window.invalidate_character_coordinates();
 4345                self.handle_pane_focused(pane.clone(), window, cx);
 4346            }
 4347            pane::Event::ZoomIn => {
 4348                if *pane == self.active_pane {
 4349                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4350                    if pane.read(cx).has_focus(window, cx) {
 4351                        self.zoomed = Some(pane.downgrade().into());
 4352                        self.zoomed_position = None;
 4353                        cx.emit(Event::ZoomChanged);
 4354                    }
 4355                    cx.notify();
 4356                }
 4357            }
 4358            pane::Event::ZoomOut => {
 4359                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4360                if self.zoomed_position.is_none() {
 4361                    self.zoomed = None;
 4362                    cx.emit(Event::ZoomChanged);
 4363                }
 4364                cx.notify();
 4365            }
 4366            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4367        }
 4368
 4369        if serialize_workspace {
 4370            self.serialize_workspace(window, cx);
 4371        }
 4372    }
 4373
 4374    pub fn unfollow_in_pane(
 4375        &mut self,
 4376        pane: &Entity<Pane>,
 4377        window: &mut Window,
 4378        cx: &mut Context<Workspace>,
 4379    ) -> Option<CollaboratorId> {
 4380        let leader_id = self.leader_for_pane(pane)?;
 4381        self.unfollow(leader_id, window, cx);
 4382        Some(leader_id)
 4383    }
 4384
 4385    pub fn split_pane(
 4386        &mut self,
 4387        pane_to_split: Entity<Pane>,
 4388        split_direction: SplitDirection,
 4389        window: &mut Window,
 4390        cx: &mut Context<Self>,
 4391    ) -> Entity<Pane> {
 4392        let new_pane = self.add_pane(window, cx);
 4393        self.center
 4394            .split(&pane_to_split, &new_pane, split_direction, cx)
 4395            .unwrap();
 4396        cx.notify();
 4397        new_pane
 4398    }
 4399
 4400    pub fn split_and_move(
 4401        &mut self,
 4402        pane: Entity<Pane>,
 4403        direction: SplitDirection,
 4404        window: &mut Window,
 4405        cx: &mut Context<Self>,
 4406    ) {
 4407        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4408            return;
 4409        };
 4410        let new_pane = self.add_pane(window, cx);
 4411        new_pane.update(cx, |pane, cx| {
 4412            pane.add_item(item, true, true, None, window, cx)
 4413        });
 4414        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4415        cx.notify();
 4416    }
 4417
 4418    pub fn split_and_clone(
 4419        &mut self,
 4420        pane: Entity<Pane>,
 4421        direction: SplitDirection,
 4422        window: &mut Window,
 4423        cx: &mut Context<Self>,
 4424    ) -> Task<Option<Entity<Pane>>> {
 4425        let Some(item) = pane.read(cx).active_item() else {
 4426            return Task::ready(None);
 4427        };
 4428        if !item.can_split(cx) {
 4429            return Task::ready(None);
 4430        }
 4431        let task = item.clone_on_split(self.database_id(), window, cx);
 4432        cx.spawn_in(window, async move |this, cx| {
 4433            if let Some(clone) = task.await {
 4434                this.update_in(cx, |this, window, cx| {
 4435                    let new_pane = this.add_pane(window, cx);
 4436                    new_pane.update(cx, |pane, cx| {
 4437                        pane.add_item(clone, true, true, None, window, cx)
 4438                    });
 4439                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4440                    cx.notify();
 4441                    new_pane
 4442                })
 4443                .ok()
 4444            } else {
 4445                None
 4446            }
 4447        })
 4448    }
 4449
 4450    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4451        let active_item = self.active_pane.read(cx).active_item();
 4452        for pane in &self.panes {
 4453            join_pane_into_active(&self.active_pane, pane, window, cx);
 4454        }
 4455        if let Some(active_item) = active_item {
 4456            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4457        }
 4458        cx.notify();
 4459    }
 4460
 4461    pub fn join_pane_into_next(
 4462        &mut self,
 4463        pane: Entity<Pane>,
 4464        window: &mut Window,
 4465        cx: &mut Context<Self>,
 4466    ) {
 4467        let next_pane = self
 4468            .find_pane_in_direction(SplitDirection::Right, cx)
 4469            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4470            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4471            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4472        let Some(next_pane) = next_pane else {
 4473            return;
 4474        };
 4475        move_all_items(&pane, &next_pane, window, cx);
 4476        cx.notify();
 4477    }
 4478
 4479    fn remove_pane(
 4480        &mut self,
 4481        pane: Entity<Pane>,
 4482        focus_on: Option<Entity<Pane>>,
 4483        window: &mut Window,
 4484        cx: &mut Context<Self>,
 4485    ) {
 4486        if self.center.remove(&pane, cx).unwrap() {
 4487            self.force_remove_pane(&pane, &focus_on, window, cx);
 4488            self.unfollow_in_pane(&pane, window, cx);
 4489            self.last_leaders_by_pane.remove(&pane.downgrade());
 4490            for removed_item in pane.read(cx).items() {
 4491                self.panes_by_item.remove(&removed_item.item_id());
 4492            }
 4493
 4494            cx.notify();
 4495        } else {
 4496            self.active_item_path_changed(true, window, cx);
 4497        }
 4498        cx.emit(Event::PaneRemoved);
 4499    }
 4500
 4501    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4502        &mut self.panes
 4503    }
 4504
 4505    pub fn panes(&self) -> &[Entity<Pane>] {
 4506        &self.panes
 4507    }
 4508
 4509    pub fn active_pane(&self) -> &Entity<Pane> {
 4510        &self.active_pane
 4511    }
 4512
 4513    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4514        for dock in self.all_docks() {
 4515            if dock.focus_handle(cx).contains_focused(window, cx)
 4516                && let Some(pane) = dock
 4517                    .read(cx)
 4518                    .active_panel()
 4519                    .and_then(|panel| panel.pane(cx))
 4520            {
 4521                return pane;
 4522            }
 4523        }
 4524        self.active_pane().clone()
 4525    }
 4526
 4527    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4528        self.find_pane_in_direction(SplitDirection::Right, cx)
 4529            .unwrap_or_else(|| {
 4530                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4531            })
 4532    }
 4533
 4534    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4535        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4536        weak_pane.upgrade()
 4537    }
 4538
 4539    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4540        self.follower_states.retain(|leader_id, state| {
 4541            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4542                for item in state.items_by_leader_view_id.values() {
 4543                    item.view.set_leader_id(None, window, cx);
 4544                }
 4545                false
 4546            } else {
 4547                true
 4548            }
 4549        });
 4550        cx.notify();
 4551    }
 4552
 4553    pub fn start_following(
 4554        &mut self,
 4555        leader_id: impl Into<CollaboratorId>,
 4556        window: &mut Window,
 4557        cx: &mut Context<Self>,
 4558    ) -> Option<Task<Result<()>>> {
 4559        let leader_id = leader_id.into();
 4560        let pane = self.active_pane().clone();
 4561
 4562        self.last_leaders_by_pane
 4563            .insert(pane.downgrade(), leader_id);
 4564        self.unfollow(leader_id, window, cx);
 4565        self.unfollow_in_pane(&pane, window, cx);
 4566        self.follower_states.insert(
 4567            leader_id,
 4568            FollowerState {
 4569                center_pane: pane.clone(),
 4570                dock_pane: None,
 4571                active_view_id: None,
 4572                items_by_leader_view_id: Default::default(),
 4573            },
 4574        );
 4575        cx.notify();
 4576
 4577        match leader_id {
 4578            CollaboratorId::PeerId(leader_peer_id) => {
 4579                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4580                let project_id = self.project.read(cx).remote_id();
 4581                let request = self.app_state.client.request(proto::Follow {
 4582                    room_id,
 4583                    project_id,
 4584                    leader_id: Some(leader_peer_id),
 4585                });
 4586
 4587                Some(cx.spawn_in(window, async move |this, cx| {
 4588                    let response = request.await?;
 4589                    this.update(cx, |this, _| {
 4590                        let state = this
 4591                            .follower_states
 4592                            .get_mut(&leader_id)
 4593                            .context("following interrupted")?;
 4594                        state.active_view_id = response
 4595                            .active_view
 4596                            .as_ref()
 4597                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4598                        anyhow::Ok(())
 4599                    })??;
 4600                    if let Some(view) = response.active_view {
 4601                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4602                    }
 4603                    this.update_in(cx, |this, window, cx| {
 4604                        this.leader_updated(leader_id, window, cx)
 4605                    })?;
 4606                    Ok(())
 4607                }))
 4608            }
 4609            CollaboratorId::Agent => {
 4610                self.leader_updated(leader_id, window, cx)?;
 4611                Some(Task::ready(Ok(())))
 4612            }
 4613        }
 4614    }
 4615
 4616    pub fn follow_next_collaborator(
 4617        &mut self,
 4618        _: &FollowNextCollaborator,
 4619        window: &mut Window,
 4620        cx: &mut Context<Self>,
 4621    ) {
 4622        let collaborators = self.project.read(cx).collaborators();
 4623        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4624            let mut collaborators = collaborators.keys().copied();
 4625            for peer_id in collaborators.by_ref() {
 4626                if CollaboratorId::PeerId(peer_id) == leader_id {
 4627                    break;
 4628                }
 4629            }
 4630            collaborators.next().map(CollaboratorId::PeerId)
 4631        } else if let Some(last_leader_id) =
 4632            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4633        {
 4634            match last_leader_id {
 4635                CollaboratorId::PeerId(peer_id) => {
 4636                    if collaborators.contains_key(peer_id) {
 4637                        Some(*last_leader_id)
 4638                    } else {
 4639                        None
 4640                    }
 4641                }
 4642                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4643            }
 4644        } else {
 4645            None
 4646        };
 4647
 4648        let pane = self.active_pane.clone();
 4649        let Some(leader_id) = next_leader_id.or_else(|| {
 4650            Some(CollaboratorId::PeerId(
 4651                collaborators.keys().copied().next()?,
 4652            ))
 4653        }) else {
 4654            return;
 4655        };
 4656        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4657            return;
 4658        }
 4659        if let Some(task) = self.start_following(leader_id, window, cx) {
 4660            task.detach_and_log_err(cx)
 4661        }
 4662    }
 4663
 4664    pub fn follow(
 4665        &mut self,
 4666        leader_id: impl Into<CollaboratorId>,
 4667        window: &mut Window,
 4668        cx: &mut Context<Self>,
 4669    ) {
 4670        let leader_id = leader_id.into();
 4671
 4672        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4673            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4674                return;
 4675            };
 4676            let room = room.read(cx);
 4677            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4678                return;
 4679            };
 4680
 4681            let project = self.project.read(cx);
 4682
 4683            let other_project_id = match remote_participant.location {
 4684                call::ParticipantLocation::External => None,
 4685                call::ParticipantLocation::UnsharedProject => None,
 4686                call::ParticipantLocation::SharedProject { project_id } => {
 4687                    if Some(project_id) == project.remote_id() {
 4688                        None
 4689                    } else {
 4690                        Some(project_id)
 4691                    }
 4692                }
 4693            };
 4694
 4695            // if they are active in another project, follow there.
 4696            if let Some(project_id) = other_project_id {
 4697                let app_state = self.app_state.clone();
 4698                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4699                    .detach_and_log_err(cx);
 4700            }
 4701        }
 4702
 4703        // if you're already following, find the right pane and focus it.
 4704        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4705            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4706
 4707            return;
 4708        }
 4709
 4710        // Otherwise, follow.
 4711        if let Some(task) = self.start_following(leader_id, window, cx) {
 4712            task.detach_and_log_err(cx)
 4713        }
 4714    }
 4715
 4716    pub fn unfollow(
 4717        &mut self,
 4718        leader_id: impl Into<CollaboratorId>,
 4719        window: &mut Window,
 4720        cx: &mut Context<Self>,
 4721    ) -> Option<()> {
 4722        cx.notify();
 4723
 4724        let leader_id = leader_id.into();
 4725        let state = self.follower_states.remove(&leader_id)?;
 4726        for (_, item) in state.items_by_leader_view_id {
 4727            item.view.set_leader_id(None, window, cx);
 4728        }
 4729
 4730        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4731            let project_id = self.project.read(cx).remote_id();
 4732            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4733            self.app_state
 4734                .client
 4735                .send(proto::Unfollow {
 4736                    room_id,
 4737                    project_id,
 4738                    leader_id: Some(leader_peer_id),
 4739                })
 4740                .log_err();
 4741        }
 4742
 4743        Some(())
 4744    }
 4745
 4746    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4747        self.follower_states.contains_key(&id.into())
 4748    }
 4749
 4750    fn active_item_path_changed(
 4751        &mut self,
 4752        focus_changed: bool,
 4753        window: &mut Window,
 4754        cx: &mut Context<Self>,
 4755    ) {
 4756        cx.emit(Event::ActiveItemChanged);
 4757        let active_entry = self.active_project_path(cx);
 4758        self.project.update(cx, |project, cx| {
 4759            project.set_active_path(active_entry.clone(), cx)
 4760        });
 4761
 4762        if focus_changed && let Some(project_path) = &active_entry {
 4763            let git_store_entity = self.project.read(cx).git_store().clone();
 4764            git_store_entity.update(cx, |git_store, cx| {
 4765                git_store.set_active_repo_for_path(project_path, cx);
 4766            });
 4767        }
 4768
 4769        self.update_window_title(window, cx);
 4770    }
 4771
 4772    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4773        let project = self.project().read(cx);
 4774        let mut title = String::new();
 4775
 4776        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4777            let name = {
 4778                let settings_location = SettingsLocation {
 4779                    worktree_id: worktree.read(cx).id(),
 4780                    path: RelPath::empty(),
 4781                };
 4782
 4783                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4784                match &settings.project_name {
 4785                    Some(name) => name.as_str(),
 4786                    None => worktree.read(cx).root_name_str(),
 4787                }
 4788            };
 4789            if i > 0 {
 4790                title.push_str(", ");
 4791            }
 4792            title.push_str(name);
 4793        }
 4794
 4795        if title.is_empty() {
 4796            title = "empty project".to_string();
 4797        }
 4798
 4799        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4800            let filename = path.path.file_name().or_else(|| {
 4801                Some(
 4802                    project
 4803                        .worktree_for_id(path.worktree_id, cx)?
 4804                        .read(cx)
 4805                        .root_name_str(),
 4806                )
 4807            });
 4808
 4809            if let Some(filename) = filename {
 4810                title.push_str("");
 4811                title.push_str(filename.as_ref());
 4812            }
 4813        }
 4814
 4815        if project.is_via_collab() {
 4816            title.push_str("");
 4817        } else if project.is_shared() {
 4818            title.push_str("");
 4819        }
 4820
 4821        if let Some(last_title) = self.last_window_title.as_ref()
 4822            && &title == last_title
 4823        {
 4824            return;
 4825        }
 4826        window.set_window_title(&title);
 4827        SystemWindowTabController::update_tab_title(
 4828            cx,
 4829            window.window_handle().window_id(),
 4830            SharedString::from(&title),
 4831        );
 4832        self.last_window_title = Some(title);
 4833    }
 4834
 4835    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4836        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4837        if is_edited != self.window_edited {
 4838            self.window_edited = is_edited;
 4839            window.set_window_edited(self.window_edited)
 4840        }
 4841    }
 4842
 4843    fn update_item_dirty_state(
 4844        &mut self,
 4845        item: &dyn ItemHandle,
 4846        window: &mut Window,
 4847        cx: &mut App,
 4848    ) {
 4849        let is_dirty = item.is_dirty(cx);
 4850        let item_id = item.item_id();
 4851        let was_dirty = self.dirty_items.contains_key(&item_id);
 4852        if is_dirty == was_dirty {
 4853            return;
 4854        }
 4855        if was_dirty {
 4856            self.dirty_items.remove(&item_id);
 4857            self.update_window_edited(window, cx);
 4858            return;
 4859        }
 4860        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4861            let s = item.on_release(
 4862                cx,
 4863                Box::new(move |cx| {
 4864                    window_handle
 4865                        .update(cx, |this, window, cx| {
 4866                            this.dirty_items.remove(&item_id);
 4867                            this.update_window_edited(window, cx)
 4868                        })
 4869                        .ok();
 4870                }),
 4871            );
 4872            self.dirty_items.insert(item_id, s);
 4873            self.update_window_edited(window, cx);
 4874        }
 4875    }
 4876
 4877    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4878        if self.notifications.is_empty() {
 4879            None
 4880        } else {
 4881            Some(
 4882                div()
 4883                    .absolute()
 4884                    .right_3()
 4885                    .bottom_3()
 4886                    .w_112()
 4887                    .h_full()
 4888                    .flex()
 4889                    .flex_col()
 4890                    .justify_end()
 4891                    .gap_2()
 4892                    .children(
 4893                        self.notifications
 4894                            .iter()
 4895                            .map(|(_, notification)| notification.clone().into_any()),
 4896                    ),
 4897            )
 4898        }
 4899    }
 4900
 4901    // RPC handlers
 4902
 4903    fn active_view_for_follower(
 4904        &self,
 4905        follower_project_id: Option<u64>,
 4906        window: &mut Window,
 4907        cx: &mut Context<Self>,
 4908    ) -> Option<proto::View> {
 4909        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4910        let item = item?;
 4911        let leader_id = self
 4912            .pane_for(&*item)
 4913            .and_then(|pane| self.leader_for_pane(&pane));
 4914        let leader_peer_id = match leader_id {
 4915            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4916            Some(CollaboratorId::Agent) | None => None,
 4917        };
 4918
 4919        let item_handle = item.to_followable_item_handle(cx)?;
 4920        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4921        let variant = item_handle.to_state_proto(window, cx)?;
 4922
 4923        if item_handle.is_project_item(window, cx)
 4924            && (follower_project_id.is_none()
 4925                || follower_project_id != self.project.read(cx).remote_id())
 4926        {
 4927            return None;
 4928        }
 4929
 4930        Some(proto::View {
 4931            id: id.to_proto(),
 4932            leader_id: leader_peer_id,
 4933            variant: Some(variant),
 4934            panel_id: panel_id.map(|id| id as i32),
 4935        })
 4936    }
 4937
 4938    fn handle_follow(
 4939        &mut self,
 4940        follower_project_id: Option<u64>,
 4941        window: &mut Window,
 4942        cx: &mut Context<Self>,
 4943    ) -> proto::FollowResponse {
 4944        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4945
 4946        cx.notify();
 4947        proto::FollowResponse {
 4948            // TODO: Remove after version 0.145.x stabilizes.
 4949            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4950            views: active_view.iter().cloned().collect(),
 4951            active_view,
 4952        }
 4953    }
 4954
 4955    fn handle_update_followers(
 4956        &mut self,
 4957        leader_id: PeerId,
 4958        message: proto::UpdateFollowers,
 4959        _window: &mut Window,
 4960        _cx: &mut Context<Self>,
 4961    ) {
 4962        self.leader_updates_tx
 4963            .unbounded_send((leader_id, message))
 4964            .ok();
 4965    }
 4966
 4967    async fn process_leader_update(
 4968        this: &WeakEntity<Self>,
 4969        leader_id: PeerId,
 4970        update: proto::UpdateFollowers,
 4971        cx: &mut AsyncWindowContext,
 4972    ) -> Result<()> {
 4973        match update.variant.context("invalid update")? {
 4974            proto::update_followers::Variant::CreateView(view) => {
 4975                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4976                let should_add_view = this.update(cx, |this, _| {
 4977                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4978                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4979                    } else {
 4980                        anyhow::Ok(false)
 4981                    }
 4982                })??;
 4983
 4984                if should_add_view {
 4985                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4986                }
 4987            }
 4988            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4989                let should_add_view = this.update(cx, |this, _| {
 4990                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4991                        state.active_view_id = update_active_view
 4992                            .view
 4993                            .as_ref()
 4994                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4995
 4996                        if state.active_view_id.is_some_and(|view_id| {
 4997                            !state.items_by_leader_view_id.contains_key(&view_id)
 4998                        }) {
 4999                            anyhow::Ok(true)
 5000                        } else {
 5001                            anyhow::Ok(false)
 5002                        }
 5003                    } else {
 5004                        anyhow::Ok(false)
 5005                    }
 5006                })??;
 5007
 5008                if should_add_view && let Some(view) = update_active_view.view {
 5009                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5010                }
 5011            }
 5012            proto::update_followers::Variant::UpdateView(update_view) => {
 5013                let variant = update_view.variant.context("missing update view variant")?;
 5014                let id = update_view.id.context("missing update view id")?;
 5015                let mut tasks = Vec::new();
 5016                this.update_in(cx, |this, window, cx| {
 5017                    let project = this.project.clone();
 5018                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5019                        let view_id = ViewId::from_proto(id.clone())?;
 5020                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5021                            tasks.push(item.view.apply_update_proto(
 5022                                &project,
 5023                                variant.clone(),
 5024                                window,
 5025                                cx,
 5026                            ));
 5027                        }
 5028                    }
 5029                    anyhow::Ok(())
 5030                })??;
 5031                try_join_all(tasks).await.log_err();
 5032            }
 5033        }
 5034        this.update_in(cx, |this, window, cx| {
 5035            this.leader_updated(leader_id, window, cx)
 5036        })?;
 5037        Ok(())
 5038    }
 5039
 5040    async fn add_view_from_leader(
 5041        this: WeakEntity<Self>,
 5042        leader_id: PeerId,
 5043        view: &proto::View,
 5044        cx: &mut AsyncWindowContext,
 5045    ) -> Result<()> {
 5046        let this = this.upgrade().context("workspace dropped")?;
 5047
 5048        let Some(id) = view.id.clone() else {
 5049            anyhow::bail!("no id for view");
 5050        };
 5051        let id = ViewId::from_proto(id)?;
 5052        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5053
 5054        let pane = this.update(cx, |this, _cx| {
 5055            let state = this
 5056                .follower_states
 5057                .get(&leader_id.into())
 5058                .context("stopped following")?;
 5059            anyhow::Ok(state.pane().clone())
 5060        })??;
 5061        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5062            let client = this.read(cx).client().clone();
 5063            pane.items().find_map(|item| {
 5064                let item = item.to_followable_item_handle(cx)?;
 5065                if item.remote_id(&client, window, cx) == Some(id) {
 5066                    Some(item)
 5067                } else {
 5068                    None
 5069                }
 5070            })
 5071        })?;
 5072        let item = if let Some(existing_item) = existing_item {
 5073            existing_item
 5074        } else {
 5075            let variant = view.variant.clone();
 5076            anyhow::ensure!(variant.is_some(), "missing view variant");
 5077
 5078            let task = cx.update(|window, cx| {
 5079                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5080            })?;
 5081
 5082            let Some(task) = task else {
 5083                anyhow::bail!(
 5084                    "failed to construct view from leader (maybe from a different version of zed?)"
 5085                );
 5086            };
 5087
 5088            let mut new_item = task.await?;
 5089            pane.update_in(cx, |pane, window, cx| {
 5090                let mut item_to_remove = None;
 5091                for (ix, item) in pane.items().enumerate() {
 5092                    if let Some(item) = item.to_followable_item_handle(cx) {
 5093                        match new_item.dedup(item.as_ref(), window, cx) {
 5094                            Some(item::Dedup::KeepExisting) => {
 5095                                new_item =
 5096                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5097                                break;
 5098                            }
 5099                            Some(item::Dedup::ReplaceExisting) => {
 5100                                item_to_remove = Some((ix, item.item_id()));
 5101                                break;
 5102                            }
 5103                            None => {}
 5104                        }
 5105                    }
 5106                }
 5107
 5108                if let Some((ix, id)) = item_to_remove {
 5109                    pane.remove_item(id, false, false, window, cx);
 5110                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5111                }
 5112            })?;
 5113
 5114            new_item
 5115        };
 5116
 5117        this.update_in(cx, |this, window, cx| {
 5118            let state = this.follower_states.get_mut(&leader_id.into())?;
 5119            item.set_leader_id(Some(leader_id.into()), window, cx);
 5120            state.items_by_leader_view_id.insert(
 5121                id,
 5122                FollowerView {
 5123                    view: item,
 5124                    location: panel_id,
 5125                },
 5126            );
 5127
 5128            Some(())
 5129        })?;
 5130
 5131        Ok(())
 5132    }
 5133
 5134    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5135        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5136            return;
 5137        };
 5138
 5139        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5140            let buffer_entity_id = agent_location.buffer.entity_id();
 5141            let view_id = ViewId {
 5142                creator: CollaboratorId::Agent,
 5143                id: buffer_entity_id.as_u64(),
 5144            };
 5145            follower_state.active_view_id = Some(view_id);
 5146
 5147            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5148                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5149                hash_map::Entry::Vacant(entry) => {
 5150                    let existing_view =
 5151                        follower_state
 5152                            .center_pane
 5153                            .read(cx)
 5154                            .items()
 5155                            .find_map(|item| {
 5156                                let item = item.to_followable_item_handle(cx)?;
 5157                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5158                                    && item.project_item_model_ids(cx).as_slice()
 5159                                        == [buffer_entity_id]
 5160                                {
 5161                                    Some(item)
 5162                                } else {
 5163                                    None
 5164                                }
 5165                            });
 5166                    let view = existing_view.or_else(|| {
 5167                        agent_location.buffer.upgrade().and_then(|buffer| {
 5168                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5169                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5170                            })?
 5171                            .to_followable_item_handle(cx)
 5172                        })
 5173                    });
 5174
 5175                    view.map(|view| {
 5176                        entry.insert(FollowerView {
 5177                            view,
 5178                            location: None,
 5179                        })
 5180                    })
 5181                }
 5182            };
 5183
 5184            if let Some(item) = item {
 5185                item.view
 5186                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5187                item.view
 5188                    .update_agent_location(agent_location.position, window, cx);
 5189            }
 5190        } else {
 5191            follower_state.active_view_id = None;
 5192        }
 5193
 5194        self.leader_updated(CollaboratorId::Agent, window, cx);
 5195    }
 5196
 5197    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5198        let mut is_project_item = true;
 5199        let mut update = proto::UpdateActiveView::default();
 5200        if window.is_window_active() {
 5201            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5202
 5203            if let Some(item) = active_item
 5204                && item.item_focus_handle(cx).contains_focused(window, cx)
 5205            {
 5206                let leader_id = self
 5207                    .pane_for(&*item)
 5208                    .and_then(|pane| self.leader_for_pane(&pane));
 5209                let leader_peer_id = match leader_id {
 5210                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5211                    Some(CollaboratorId::Agent) | None => None,
 5212                };
 5213
 5214                if let Some(item) = item.to_followable_item_handle(cx) {
 5215                    let id = item
 5216                        .remote_id(&self.app_state.client, window, cx)
 5217                        .map(|id| id.to_proto());
 5218
 5219                    if let Some(id) = id
 5220                        && let Some(variant) = item.to_state_proto(window, cx)
 5221                    {
 5222                        let view = Some(proto::View {
 5223                            id: id.clone(),
 5224                            leader_id: leader_peer_id,
 5225                            variant: Some(variant),
 5226                            panel_id: panel_id.map(|id| id as i32),
 5227                        });
 5228
 5229                        is_project_item = item.is_project_item(window, cx);
 5230                        update = proto::UpdateActiveView {
 5231                            view,
 5232                            // TODO: Remove after version 0.145.x stabilizes.
 5233                            id,
 5234                            leader_id: leader_peer_id,
 5235                        };
 5236                    };
 5237                }
 5238            }
 5239        }
 5240
 5241        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5242        if active_view_id != self.last_active_view_id.as_ref() {
 5243            self.last_active_view_id = active_view_id.cloned();
 5244            self.update_followers(
 5245                is_project_item,
 5246                proto::update_followers::Variant::UpdateActiveView(update),
 5247                window,
 5248                cx,
 5249            );
 5250        }
 5251    }
 5252
 5253    fn active_item_for_followers(
 5254        &self,
 5255        window: &mut Window,
 5256        cx: &mut App,
 5257    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5258        let mut active_item = None;
 5259        let mut panel_id = None;
 5260        for dock in self.all_docks() {
 5261            if dock.focus_handle(cx).contains_focused(window, cx)
 5262                && let Some(panel) = dock.read(cx).active_panel()
 5263                && let Some(pane) = panel.pane(cx)
 5264                && let Some(item) = pane.read(cx).active_item()
 5265            {
 5266                active_item = Some(item);
 5267                panel_id = panel.remote_id();
 5268                break;
 5269            }
 5270        }
 5271
 5272        if active_item.is_none() {
 5273            active_item = self.active_pane().read(cx).active_item();
 5274        }
 5275        (active_item, panel_id)
 5276    }
 5277
 5278    fn update_followers(
 5279        &self,
 5280        project_only: bool,
 5281        update: proto::update_followers::Variant,
 5282        _: &mut Window,
 5283        cx: &mut App,
 5284    ) -> Option<()> {
 5285        // If this update only applies to for followers in the current project,
 5286        // then skip it unless this project is shared. If it applies to all
 5287        // followers, regardless of project, then set `project_id` to none,
 5288        // indicating that it goes to all followers.
 5289        let project_id = if project_only {
 5290            Some(self.project.read(cx).remote_id()?)
 5291        } else {
 5292            None
 5293        };
 5294        self.app_state().workspace_store.update(cx, |store, cx| {
 5295            store.update_followers(project_id, update, cx)
 5296        })
 5297    }
 5298
 5299    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5300        self.follower_states.iter().find_map(|(leader_id, state)| {
 5301            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5302                Some(*leader_id)
 5303            } else {
 5304                None
 5305            }
 5306        })
 5307    }
 5308
 5309    fn leader_updated(
 5310        &mut self,
 5311        leader_id: impl Into<CollaboratorId>,
 5312        window: &mut Window,
 5313        cx: &mut Context<Self>,
 5314    ) -> Option<Box<dyn ItemHandle>> {
 5315        cx.notify();
 5316
 5317        let leader_id = leader_id.into();
 5318        let (panel_id, item) = match leader_id {
 5319            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5320            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5321        };
 5322
 5323        let state = self.follower_states.get(&leader_id)?;
 5324        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5325        let pane;
 5326        if let Some(panel_id) = panel_id {
 5327            pane = self
 5328                .activate_panel_for_proto_id(panel_id, window, cx)?
 5329                .pane(cx)?;
 5330            let state = self.follower_states.get_mut(&leader_id)?;
 5331            state.dock_pane = Some(pane.clone());
 5332        } else {
 5333            pane = state.center_pane.clone();
 5334            let state = self.follower_states.get_mut(&leader_id)?;
 5335            if let Some(dock_pane) = state.dock_pane.take() {
 5336                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5337            }
 5338        }
 5339
 5340        pane.update(cx, |pane, cx| {
 5341            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5342            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5343                pane.activate_item(index, false, false, window, cx);
 5344            } else {
 5345                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5346            }
 5347
 5348            if focus_active_item {
 5349                pane.focus_active_item(window, cx)
 5350            }
 5351        });
 5352
 5353        Some(item)
 5354    }
 5355
 5356    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5357        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5358        let active_view_id = state.active_view_id?;
 5359        Some(
 5360            state
 5361                .items_by_leader_view_id
 5362                .get(&active_view_id)?
 5363                .view
 5364                .boxed_clone(),
 5365        )
 5366    }
 5367
 5368    fn active_item_for_peer(
 5369        &self,
 5370        peer_id: PeerId,
 5371        window: &mut Window,
 5372        cx: &mut Context<Self>,
 5373    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5374        let call = self.active_call()?;
 5375        let room = call.read(cx).room()?.read(cx);
 5376        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5377        let leader_in_this_app;
 5378        let leader_in_this_project;
 5379        match participant.location {
 5380            call::ParticipantLocation::SharedProject { project_id } => {
 5381                leader_in_this_app = true;
 5382                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5383            }
 5384            call::ParticipantLocation::UnsharedProject => {
 5385                leader_in_this_app = true;
 5386                leader_in_this_project = false;
 5387            }
 5388            call::ParticipantLocation::External => {
 5389                leader_in_this_app = false;
 5390                leader_in_this_project = false;
 5391            }
 5392        };
 5393        let state = self.follower_states.get(&peer_id.into())?;
 5394        let mut item_to_activate = None;
 5395        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5396            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5397                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5398            {
 5399                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5400            }
 5401        } else if let Some(shared_screen) =
 5402            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5403        {
 5404            item_to_activate = Some((None, Box::new(shared_screen)));
 5405        }
 5406        item_to_activate
 5407    }
 5408
 5409    fn shared_screen_for_peer(
 5410        &self,
 5411        peer_id: PeerId,
 5412        pane: &Entity<Pane>,
 5413        window: &mut Window,
 5414        cx: &mut App,
 5415    ) -> Option<Entity<SharedScreen>> {
 5416        let call = self.active_call()?;
 5417        let room = call.read(cx).room()?.clone();
 5418        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5419        let track = participant.video_tracks.values().next()?.clone();
 5420        let user = participant.user.clone();
 5421
 5422        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5423            if item.read(cx).peer_id == peer_id {
 5424                return Some(item);
 5425            }
 5426        }
 5427
 5428        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5429    }
 5430
 5431    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5432        if window.is_window_active() {
 5433            self.update_active_view_for_followers(window, cx);
 5434
 5435            if let Some(database_id) = self.database_id {
 5436                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5437                    .detach();
 5438            }
 5439        } else {
 5440            for pane in &self.panes {
 5441                pane.update(cx, |pane, cx| {
 5442                    if let Some(item) = pane.active_item() {
 5443                        item.workspace_deactivated(window, cx);
 5444                    }
 5445                    for item in pane.items() {
 5446                        if matches!(
 5447                            item.workspace_settings(cx).autosave,
 5448                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5449                        ) {
 5450                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5451                                .detach_and_log_err(cx);
 5452                        }
 5453                    }
 5454                });
 5455            }
 5456        }
 5457    }
 5458
 5459    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5460        self.active_call.as_ref().map(|(call, _)| call)
 5461    }
 5462
 5463    fn on_active_call_event(
 5464        &mut self,
 5465        _: &Entity<ActiveCall>,
 5466        event: &call::room::Event,
 5467        window: &mut Window,
 5468        cx: &mut Context<Self>,
 5469    ) {
 5470        match event {
 5471            call::room::Event::ParticipantLocationChanged { participant_id }
 5472            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5473                self.leader_updated(participant_id, window, cx);
 5474            }
 5475            _ => {}
 5476        }
 5477    }
 5478
 5479    pub fn database_id(&self) -> Option<WorkspaceId> {
 5480        self.database_id
 5481    }
 5482
 5483    pub fn session_id(&self) -> Option<String> {
 5484        self.session_id.clone()
 5485    }
 5486
 5487    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5488        let project = self.project().read(cx);
 5489        project
 5490            .visible_worktrees(cx)
 5491            .map(|worktree| worktree.read(cx).abs_path())
 5492            .collect::<Vec<_>>()
 5493    }
 5494
 5495    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5496        match member {
 5497            Member::Axis(PaneAxis { members, .. }) => {
 5498                for child in members.iter() {
 5499                    self.remove_panes(child.clone(), window, cx)
 5500                }
 5501            }
 5502            Member::Pane(pane) => {
 5503                self.force_remove_pane(&pane, &None, window, cx);
 5504            }
 5505        }
 5506    }
 5507
 5508    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5509        self.session_id.take();
 5510        self.serialize_workspace_internal(window, cx)
 5511    }
 5512
 5513    fn force_remove_pane(
 5514        &mut self,
 5515        pane: &Entity<Pane>,
 5516        focus_on: &Option<Entity<Pane>>,
 5517        window: &mut Window,
 5518        cx: &mut Context<Workspace>,
 5519    ) {
 5520        self.panes.retain(|p| p != pane);
 5521        if let Some(focus_on) = focus_on {
 5522            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5523        } else if self.active_pane() == pane {
 5524            self.panes
 5525                .last()
 5526                .unwrap()
 5527                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5528        }
 5529        if self.last_active_center_pane == Some(pane.downgrade()) {
 5530            self.last_active_center_pane = None;
 5531        }
 5532        cx.notify();
 5533    }
 5534
 5535    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5536        if self._schedule_serialize_workspace.is_none() {
 5537            self._schedule_serialize_workspace =
 5538                Some(cx.spawn_in(window, async move |this, cx| {
 5539                    cx.background_executor()
 5540                        .timer(SERIALIZATION_THROTTLE_TIME)
 5541                        .await;
 5542                    this.update_in(cx, |this, window, cx| {
 5543                        this.serialize_workspace_internal(window, cx).detach();
 5544                        this._schedule_serialize_workspace.take();
 5545                    })
 5546                    .log_err();
 5547                }));
 5548        }
 5549    }
 5550
 5551    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5552        let Some(database_id) = self.database_id() else {
 5553            return Task::ready(());
 5554        };
 5555
 5556        fn serialize_pane_handle(
 5557            pane_handle: &Entity<Pane>,
 5558            window: &mut Window,
 5559            cx: &mut App,
 5560        ) -> SerializedPane {
 5561            let (items, active, pinned_count) = {
 5562                let pane = pane_handle.read(cx);
 5563                let active_item_id = pane.active_item().map(|item| item.item_id());
 5564                (
 5565                    pane.items()
 5566                        .filter_map(|handle| {
 5567                            let handle = handle.to_serializable_item_handle(cx)?;
 5568
 5569                            Some(SerializedItem {
 5570                                kind: Arc::from(handle.serialized_item_kind()),
 5571                                item_id: handle.item_id().as_u64(),
 5572                                active: Some(handle.item_id()) == active_item_id,
 5573                                preview: pane.is_active_preview_item(handle.item_id()),
 5574                            })
 5575                        })
 5576                        .collect::<Vec<_>>(),
 5577                    pane.has_focus(window, cx),
 5578                    pane.pinned_count(),
 5579                )
 5580            };
 5581
 5582            SerializedPane::new(items, active, pinned_count)
 5583        }
 5584
 5585        fn build_serialized_pane_group(
 5586            pane_group: &Member,
 5587            window: &mut Window,
 5588            cx: &mut App,
 5589        ) -> SerializedPaneGroup {
 5590            match pane_group {
 5591                Member::Axis(PaneAxis {
 5592                    axis,
 5593                    members,
 5594                    flexes,
 5595                    bounding_boxes: _,
 5596                }) => SerializedPaneGroup::Group {
 5597                    axis: SerializedAxis(*axis),
 5598                    children: members
 5599                        .iter()
 5600                        .map(|member| build_serialized_pane_group(member, window, cx))
 5601                        .collect::<Vec<_>>(),
 5602                    flexes: Some(flexes.lock().clone()),
 5603                },
 5604                Member::Pane(pane_handle) => {
 5605                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5606                }
 5607            }
 5608        }
 5609
 5610        fn build_serialized_docks(
 5611            this: &Workspace,
 5612            window: &mut Window,
 5613            cx: &mut App,
 5614        ) -> DockStructure {
 5615            let left_dock = this.left_dock.read(cx);
 5616            let left_visible = left_dock.is_open();
 5617            let left_active_panel = left_dock
 5618                .active_panel()
 5619                .map(|panel| panel.persistent_name().to_string());
 5620            let left_dock_zoom = left_dock
 5621                .active_panel()
 5622                .map(|panel| panel.is_zoomed(window, cx))
 5623                .unwrap_or(false);
 5624
 5625            let right_dock = this.right_dock.read(cx);
 5626            let right_visible = right_dock.is_open();
 5627            let right_active_panel = right_dock
 5628                .active_panel()
 5629                .map(|panel| panel.persistent_name().to_string());
 5630            let right_dock_zoom = right_dock
 5631                .active_panel()
 5632                .map(|panel| panel.is_zoomed(window, cx))
 5633                .unwrap_or(false);
 5634
 5635            let bottom_dock = this.bottom_dock.read(cx);
 5636            let bottom_visible = bottom_dock.is_open();
 5637            let bottom_active_panel = bottom_dock
 5638                .active_panel()
 5639                .map(|panel| panel.persistent_name().to_string());
 5640            let bottom_dock_zoom = bottom_dock
 5641                .active_panel()
 5642                .map(|panel| panel.is_zoomed(window, cx))
 5643                .unwrap_or(false);
 5644
 5645            DockStructure {
 5646                left: DockData {
 5647                    visible: left_visible,
 5648                    active_panel: left_active_panel,
 5649                    zoom: left_dock_zoom,
 5650                },
 5651                right: DockData {
 5652                    visible: right_visible,
 5653                    active_panel: right_active_panel,
 5654                    zoom: right_dock_zoom,
 5655                },
 5656                bottom: DockData {
 5657                    visible: bottom_visible,
 5658                    active_panel: bottom_active_panel,
 5659                    zoom: bottom_dock_zoom,
 5660                },
 5661            }
 5662        }
 5663
 5664        match self.serialize_workspace_location(cx) {
 5665            WorkspaceLocation::Location(location, paths) => {
 5666                let breakpoints = self.project.update(cx, |project, cx| {
 5667                    project
 5668                        .breakpoint_store()
 5669                        .read(cx)
 5670                        .all_source_breakpoints(cx)
 5671                });
 5672                let user_toolchains = self
 5673                    .project
 5674                    .read(cx)
 5675                    .user_toolchains(cx)
 5676                    .unwrap_or_default();
 5677
 5678                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5679                let docks = build_serialized_docks(self, window, cx);
 5680                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5681
 5682                let serialized_workspace = SerializedWorkspace {
 5683                    id: database_id,
 5684                    location,
 5685                    paths,
 5686                    center_group,
 5687                    window_bounds,
 5688                    display: Default::default(),
 5689                    docks,
 5690                    centered_layout: self.centered_layout,
 5691                    session_id: self.session_id.clone(),
 5692                    breakpoints,
 5693                    window_id: Some(window.window_handle().window_id().as_u64()),
 5694                    user_toolchains,
 5695                };
 5696
 5697                window.spawn(cx, async move |_| {
 5698                    persistence::DB.save_workspace(serialized_workspace).await;
 5699                })
 5700            }
 5701            WorkspaceLocation::DetachFromSession => {
 5702                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5703                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5704                window.spawn(cx, async move |_| {
 5705                    persistence::DB
 5706                        .set_window_open_status(
 5707                            database_id,
 5708                            window_bounds,
 5709                            display.unwrap_or_default(),
 5710                        )
 5711                        .await
 5712                        .log_err();
 5713                    persistence::DB
 5714                        .set_session_id(database_id, None)
 5715                        .await
 5716                        .log_err();
 5717                })
 5718            }
 5719            WorkspaceLocation::None => Task::ready(()),
 5720        }
 5721    }
 5722
 5723    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5724        let paths = PathList::new(&self.root_paths(cx));
 5725        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5726            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5727        } else if self.project.read(cx).is_local() {
 5728            if !paths.is_empty() {
 5729                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5730            } else {
 5731                WorkspaceLocation::DetachFromSession
 5732            }
 5733        } else {
 5734            WorkspaceLocation::None
 5735        }
 5736    }
 5737
 5738    fn update_history(&self, cx: &mut App) {
 5739        let Some(id) = self.database_id() else {
 5740            return;
 5741        };
 5742        if !self.project.read(cx).is_local() {
 5743            return;
 5744        }
 5745        if let Some(manager) = HistoryManager::global(cx) {
 5746            let paths = PathList::new(&self.root_paths(cx));
 5747            manager.update(cx, |this, cx| {
 5748                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5749            });
 5750        }
 5751    }
 5752
 5753    async fn serialize_items(
 5754        this: &WeakEntity<Self>,
 5755        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5756        cx: &mut AsyncWindowContext,
 5757    ) -> Result<()> {
 5758        const CHUNK_SIZE: usize = 200;
 5759
 5760        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5761
 5762        while let Some(items_received) = serializable_items.next().await {
 5763            let unique_items =
 5764                items_received
 5765                    .into_iter()
 5766                    .fold(HashMap::default(), |mut acc, item| {
 5767                        acc.entry(item.item_id()).or_insert(item);
 5768                        acc
 5769                    });
 5770
 5771            // We use into_iter() here so that the references to the items are moved into
 5772            // the tasks and not kept alive while we're sleeping.
 5773            for (_, item) in unique_items.into_iter() {
 5774                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5775                    item.serialize(workspace, false, window, cx)
 5776                }) {
 5777                    cx.background_spawn(async move { task.await.log_err() })
 5778                        .detach();
 5779                }
 5780            }
 5781
 5782            cx.background_executor()
 5783                .timer(SERIALIZATION_THROTTLE_TIME)
 5784                .await;
 5785        }
 5786
 5787        Ok(())
 5788    }
 5789
 5790    pub(crate) fn enqueue_item_serialization(
 5791        &mut self,
 5792        item: Box<dyn SerializableItemHandle>,
 5793    ) -> Result<()> {
 5794        self.serializable_items_tx
 5795            .unbounded_send(item)
 5796            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5797    }
 5798
 5799    pub(crate) fn load_workspace(
 5800        serialized_workspace: SerializedWorkspace,
 5801        paths_to_open: Vec<Option<ProjectPath>>,
 5802        window: &mut Window,
 5803        cx: &mut Context<Workspace>,
 5804    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5805        cx.spawn_in(window, async move |workspace, cx| {
 5806            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5807
 5808            let mut center_group = None;
 5809            let mut center_items = None;
 5810
 5811            // Traverse the splits tree and add to things
 5812            if let Some((group, active_pane, items)) = serialized_workspace
 5813                .center_group
 5814                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5815                .await
 5816            {
 5817                center_items = Some(items);
 5818                center_group = Some((group, active_pane))
 5819            }
 5820
 5821            let mut items_by_project_path = HashMap::default();
 5822            let mut item_ids_by_kind = HashMap::default();
 5823            let mut all_deserialized_items = Vec::default();
 5824            cx.update(|_, cx| {
 5825                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5826                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5827                        item_ids_by_kind
 5828                            .entry(serializable_item_handle.serialized_item_kind())
 5829                            .or_insert(Vec::new())
 5830                            .push(item.item_id().as_u64() as ItemId);
 5831                    }
 5832
 5833                    if let Some(project_path) = item.project_path(cx) {
 5834                        items_by_project_path.insert(project_path, item.clone());
 5835                    }
 5836                    all_deserialized_items.push(item);
 5837                }
 5838            })?;
 5839
 5840            let opened_items = paths_to_open
 5841                .into_iter()
 5842                .map(|path_to_open| {
 5843                    path_to_open
 5844                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5845                })
 5846                .collect::<Vec<_>>();
 5847
 5848            // Remove old panes from workspace panes list
 5849            workspace.update_in(cx, |workspace, window, cx| {
 5850                if let Some((center_group, active_pane)) = center_group {
 5851                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5852
 5853                    // Swap workspace center group
 5854                    workspace.center = PaneGroup::with_root(center_group);
 5855                    workspace.center.set_is_center(true);
 5856                    workspace.center.mark_positions(cx);
 5857
 5858                    if let Some(active_pane) = active_pane {
 5859                        workspace.set_active_pane(&active_pane, window, cx);
 5860                        cx.focus_self(window);
 5861                    } else {
 5862                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5863                    }
 5864                }
 5865
 5866                let docks = serialized_workspace.docks;
 5867
 5868                for (dock, serialized_dock) in [
 5869                    (&mut workspace.right_dock, docks.right),
 5870                    (&mut workspace.left_dock, docks.left),
 5871                    (&mut workspace.bottom_dock, docks.bottom),
 5872                ]
 5873                .iter_mut()
 5874                {
 5875                    dock.update(cx, |dock, cx| {
 5876                        dock.serialized_dock = Some(serialized_dock.clone());
 5877                        dock.restore_state(window, cx);
 5878                    });
 5879                }
 5880
 5881                cx.notify();
 5882            })?;
 5883
 5884            let _ = project
 5885                .update(cx, |project, cx| {
 5886                    project
 5887                        .breakpoint_store()
 5888                        .update(cx, |breakpoint_store, cx| {
 5889                            breakpoint_store
 5890                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5891                        })
 5892                })?
 5893                .await;
 5894
 5895            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5896            // after loading the items, we might have different items and in order to avoid
 5897            // the database filling up, we delete items that haven't been loaded now.
 5898            //
 5899            // The items that have been loaded, have been saved after they've been added to the workspace.
 5900            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5901                item_ids_by_kind
 5902                    .into_iter()
 5903                    .map(|(item_kind, loaded_items)| {
 5904                        SerializableItemRegistry::cleanup(
 5905                            item_kind,
 5906                            serialized_workspace.id,
 5907                            loaded_items,
 5908                            window,
 5909                            cx,
 5910                        )
 5911                        .log_err()
 5912                    })
 5913                    .collect::<Vec<_>>()
 5914            })?;
 5915
 5916            futures::future::join_all(clean_up_tasks).await;
 5917
 5918            workspace
 5919                .update_in(cx, |workspace, window, cx| {
 5920                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5921                    workspace.serialize_workspace_internal(window, cx).detach();
 5922
 5923                    // Ensure that we mark the window as edited if we did load dirty items
 5924                    workspace.update_window_edited(window, cx);
 5925                })
 5926                .ok();
 5927
 5928            Ok(opened_items)
 5929        })
 5930    }
 5931
 5932    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5933        self.add_workspace_actions_listeners(div, window, cx)
 5934            .on_action(cx.listener(
 5935                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5936                    for action in &action_sequence.0 {
 5937                        window.dispatch_action(action.boxed_clone(), cx);
 5938                    }
 5939                },
 5940            ))
 5941            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5942            .on_action(cx.listener(Self::close_all_items_and_panes))
 5943            .on_action(cx.listener(Self::save_all))
 5944            .on_action(cx.listener(Self::send_keystrokes))
 5945            .on_action(cx.listener(Self::add_folder_to_project))
 5946            .on_action(cx.listener(Self::follow_next_collaborator))
 5947            .on_action(cx.listener(Self::close_window))
 5948            .on_action(cx.listener(Self::activate_pane_at_index))
 5949            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5950            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5951            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5952            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5953                let pane = workspace.active_pane().clone();
 5954                workspace.unfollow_in_pane(&pane, window, cx);
 5955            }))
 5956            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5957                workspace
 5958                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5959                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5960            }))
 5961            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5962                workspace
 5963                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5964                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5965            }))
 5966            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5967                workspace
 5968                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5969                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5970            }))
 5971            .on_action(
 5972                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5973                    workspace.activate_previous_pane(window, cx)
 5974                }),
 5975            )
 5976            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5977                workspace.activate_next_pane(window, cx)
 5978            }))
 5979            .on_action(
 5980                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5981                    workspace.activate_next_window(cx)
 5982                }),
 5983            )
 5984            .on_action(
 5985                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5986                    workspace.activate_previous_window(cx)
 5987                }),
 5988            )
 5989            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5990                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5991            }))
 5992            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5993                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5994            }))
 5995            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5996                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5997            }))
 5998            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5999                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6000            }))
 6001            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6002                workspace.activate_next_pane(window, cx)
 6003            }))
 6004            .on_action(cx.listener(
 6005                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6006                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6007                },
 6008            ))
 6009            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6010                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6011            }))
 6012            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6013                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6014            }))
 6015            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6016                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6017            }))
 6018            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6019                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6020            }))
 6021            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6022                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6023                    SplitDirection::Down,
 6024                    SplitDirection::Up,
 6025                    SplitDirection::Right,
 6026                    SplitDirection::Left,
 6027                ];
 6028                for dir in DIRECTION_PRIORITY {
 6029                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6030                        workspace.swap_pane_in_direction(dir, cx);
 6031                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6032                        break;
 6033                    }
 6034                }
 6035            }))
 6036            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6037                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6038            }))
 6039            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6040                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6041            }))
 6042            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6043                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6044            }))
 6045            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6046                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6047            }))
 6048            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6049                this.toggle_dock(DockPosition::Left, window, cx);
 6050            }))
 6051            .on_action(cx.listener(
 6052                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6053                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6054                },
 6055            ))
 6056            .on_action(cx.listener(
 6057                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6058                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6059                },
 6060            ))
 6061            .on_action(cx.listener(
 6062                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6063                    if !workspace.close_active_dock(window, cx) {
 6064                        cx.propagate();
 6065                    }
 6066                },
 6067            ))
 6068            .on_action(
 6069                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6070                    workspace.close_all_docks(window, cx);
 6071                }),
 6072            )
 6073            .on_action(cx.listener(Self::toggle_all_docks))
 6074            .on_action(cx.listener(
 6075                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6076                    workspace.clear_all_notifications(cx);
 6077                },
 6078            ))
 6079            .on_action(cx.listener(
 6080                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6081                    workspace.clear_navigation_history(window, cx);
 6082                },
 6083            ))
 6084            .on_action(cx.listener(
 6085                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6086                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6087                        workspace.suppress_notification(&notification_id, cx);
 6088                    }
 6089                },
 6090            ))
 6091            .on_action(cx.listener(
 6092                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6093                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6094                },
 6095            ))
 6096            .on_action(
 6097                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6098                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6099                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6100                            trusted_worktrees.clear_trusted_paths()
 6101                        });
 6102                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6103                        cx.spawn(async move |_, cx| {
 6104                            if clear_task.await.log_err().is_some() {
 6105                                cx.update(|cx| reload(cx)).ok();
 6106                            }
 6107                        })
 6108                        .detach();
 6109                    }
 6110                }),
 6111            )
 6112            .on_action(cx.listener(
 6113                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6114                    workspace.reopen_closed_item(window, cx).detach();
 6115                },
 6116            ))
 6117            .on_action(cx.listener(
 6118                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6119                    for dock in workspace.all_docks() {
 6120                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6121                            let Some(panel) = dock.read(cx).active_panel() else {
 6122                                return;
 6123                            };
 6124
 6125                            // Set to `None`, then the size will fall back to the default.
 6126                            panel.clone().set_size(None, window, cx);
 6127
 6128                            return;
 6129                        }
 6130                    }
 6131                },
 6132            ))
 6133            .on_action(cx.listener(
 6134                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6135                    for dock in workspace.all_docks() {
 6136                        if let Some(panel) = dock.read(cx).visible_panel() {
 6137                            // Set to `None`, then the size will fall back to the default.
 6138                            panel.clone().set_size(None, window, cx);
 6139                        }
 6140                    }
 6141                },
 6142            ))
 6143            .on_action(cx.listener(
 6144                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6145                    adjust_active_dock_size_by_px(
 6146                        px_with_ui_font_fallback(act.px, cx),
 6147                        workspace,
 6148                        window,
 6149                        cx,
 6150                    );
 6151                },
 6152            ))
 6153            .on_action(cx.listener(
 6154                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6155                    adjust_active_dock_size_by_px(
 6156                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6157                        workspace,
 6158                        window,
 6159                        cx,
 6160                    );
 6161                },
 6162            ))
 6163            .on_action(cx.listener(
 6164                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6165                    adjust_open_docks_size_by_px(
 6166                        px_with_ui_font_fallback(act.px, cx),
 6167                        workspace,
 6168                        window,
 6169                        cx,
 6170                    );
 6171                },
 6172            ))
 6173            .on_action(cx.listener(
 6174                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6175                    adjust_open_docks_size_by_px(
 6176                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6177                        workspace,
 6178                        window,
 6179                        cx,
 6180                    );
 6181                },
 6182            ))
 6183            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6184            .on_action(cx.listener(
 6185                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6186                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6187                        let dock = active_dock.read(cx);
 6188                        if let Some(active_panel) = dock.active_panel() {
 6189                            if active_panel.pane(cx).is_none() {
 6190                                let mut recent_pane: Option<Entity<Pane>> = None;
 6191                                let mut recent_timestamp = 0;
 6192                                for pane_handle in workspace.panes() {
 6193                                    let pane = pane_handle.read(cx);
 6194                                    for entry in pane.activation_history() {
 6195                                        if entry.timestamp > recent_timestamp {
 6196                                            recent_timestamp = entry.timestamp;
 6197                                            recent_pane = Some(pane_handle.clone());
 6198                                        }
 6199                                    }
 6200                                }
 6201
 6202                                if let Some(pane) = recent_pane {
 6203                                    pane.update(cx, |pane, cx| {
 6204                                        let current_index = pane.active_item_index();
 6205                                        let items_len = pane.items_len();
 6206                                        if items_len > 0 {
 6207                                            let next_index = if current_index + 1 < items_len {
 6208                                                current_index + 1
 6209                                            } else {
 6210                                                0
 6211                                            };
 6212                                            pane.activate_item(
 6213                                                next_index, false, false, window, cx,
 6214                                            );
 6215                                        }
 6216                                    });
 6217                                    return;
 6218                                }
 6219                            }
 6220                        }
 6221                    }
 6222                    cx.propagate();
 6223                },
 6224            ))
 6225            .on_action(cx.listener(
 6226                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6227                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6228                        let dock = active_dock.read(cx);
 6229                        if let Some(active_panel) = dock.active_panel() {
 6230                            if active_panel.pane(cx).is_none() {
 6231                                let mut recent_pane: Option<Entity<Pane>> = None;
 6232                                let mut recent_timestamp = 0;
 6233                                for pane_handle in workspace.panes() {
 6234                                    let pane = pane_handle.read(cx);
 6235                                    for entry in pane.activation_history() {
 6236                                        if entry.timestamp > recent_timestamp {
 6237                                            recent_timestamp = entry.timestamp;
 6238                                            recent_pane = Some(pane_handle.clone());
 6239                                        }
 6240                                    }
 6241                                }
 6242
 6243                                if let Some(pane) = recent_pane {
 6244                                    pane.update(cx, |pane, cx| {
 6245                                        let current_index = pane.active_item_index();
 6246                                        let items_len = pane.items_len();
 6247                                        if items_len > 0 {
 6248                                            let prev_index = if current_index > 0 {
 6249                                                current_index - 1
 6250                                            } else {
 6251                                                items_len.saturating_sub(1)
 6252                                            };
 6253                                            pane.activate_item(
 6254                                                prev_index, false, false, window, cx,
 6255                                            );
 6256                                        }
 6257                                    });
 6258                                    return;
 6259                                }
 6260                            }
 6261                        }
 6262                    }
 6263                    cx.propagate();
 6264                },
 6265            ))
 6266            .on_action(cx.listener(Workspace::cancel))
 6267    }
 6268
 6269    #[cfg(any(test, feature = "test-support"))]
 6270    pub fn set_random_database_id(&mut self) {
 6271        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6272    }
 6273
 6274    #[cfg(any(test, feature = "test-support"))]
 6275    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6276        use node_runtime::NodeRuntime;
 6277        use session::Session;
 6278
 6279        let client = project.read(cx).client();
 6280        let user_store = project.read(cx).user_store();
 6281        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6282        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6283        window.activate_window();
 6284        let app_state = Arc::new(AppState {
 6285            languages: project.read(cx).languages().clone(),
 6286            workspace_store,
 6287            client,
 6288            user_store,
 6289            fs: project.read(cx).fs().clone(),
 6290            build_window_options: |_, _| Default::default(),
 6291            node_runtime: NodeRuntime::unavailable(),
 6292            session,
 6293        });
 6294        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6295        workspace
 6296            .active_pane
 6297            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6298        workspace
 6299    }
 6300
 6301    pub fn register_action<A: Action>(
 6302        &mut self,
 6303        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6304    ) -> &mut Self {
 6305        let callback = Arc::new(callback);
 6306
 6307        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6308            let callback = callback.clone();
 6309            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6310                (callback)(workspace, event, window, cx)
 6311            }))
 6312        }));
 6313        self
 6314    }
 6315    pub fn register_action_renderer(
 6316        &mut self,
 6317        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6318    ) -> &mut Self {
 6319        self.workspace_actions.push(Box::new(callback));
 6320        self
 6321    }
 6322
 6323    fn add_workspace_actions_listeners(
 6324        &self,
 6325        mut div: Div,
 6326        window: &mut Window,
 6327        cx: &mut Context<Self>,
 6328    ) -> Div {
 6329        for action in self.workspace_actions.iter() {
 6330            div = (action)(div, self, window, cx)
 6331        }
 6332        div
 6333    }
 6334
 6335    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6336        self.modal_layer.read(cx).has_active_modal()
 6337    }
 6338
 6339    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6340        self.modal_layer.read(cx).active_modal()
 6341    }
 6342
 6343    pub fn is_modal_open<V: 'static>(&self, cx: &App) -> bool {
 6344        self.modal_layer.read(cx).active_modal::<V>().is_some()
 6345    }
 6346
 6347    pub fn set_next_modal_placement(&mut self, placement: ModalPlacement) {
 6348        self.next_modal_placement = Some(placement);
 6349    }
 6350
 6351    fn take_next_modal_placement(&mut self) -> ModalPlacement {
 6352        self.next_modal_placement.take().unwrap_or_default()
 6353    }
 6354
 6355    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6356    where
 6357        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6358    {
 6359        let placement = self.take_next_modal_placement();
 6360        self.modal_layer.update(cx, |modal_layer, cx| {
 6361            modal_layer.toggle_modal_with_placement(window, cx, placement, build)
 6362        })
 6363    }
 6364
 6365    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6366        self.modal_layer
 6367            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6368    }
 6369
 6370    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6371        self.toast_layer
 6372            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6373    }
 6374
 6375    pub fn toggle_centered_layout(
 6376        &mut self,
 6377        _: &ToggleCenteredLayout,
 6378        _: &mut Window,
 6379        cx: &mut Context<Self>,
 6380    ) {
 6381        self.centered_layout = !self.centered_layout;
 6382        if let Some(database_id) = self.database_id() {
 6383            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6384                .detach_and_log_err(cx);
 6385        }
 6386        cx.notify();
 6387    }
 6388
 6389    fn adjust_padding(padding: Option<f32>) -> f32 {
 6390        padding
 6391            .unwrap_or(CenteredPaddingSettings::default().0)
 6392            .clamp(
 6393                CenteredPaddingSettings::MIN_PADDING,
 6394                CenteredPaddingSettings::MAX_PADDING,
 6395            )
 6396    }
 6397
 6398    fn render_dock(
 6399        &self,
 6400        position: DockPosition,
 6401        dock: &Entity<Dock>,
 6402        window: &mut Window,
 6403        cx: &mut App,
 6404    ) -> Option<Div> {
 6405        if self.zoomed_position == Some(position) {
 6406            return None;
 6407        }
 6408
 6409        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6410            let pane = panel.pane(cx)?;
 6411            let follower_states = &self.follower_states;
 6412            leader_border_for_pane(follower_states, &pane, window, cx)
 6413        });
 6414
 6415        Some(
 6416            div()
 6417                .flex()
 6418                .flex_none()
 6419                .overflow_hidden()
 6420                .child(dock.clone())
 6421                .children(leader_border),
 6422        )
 6423    }
 6424
 6425    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6426        window.root().flatten()
 6427    }
 6428
 6429    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6430        self.zoomed.as_ref()
 6431    }
 6432
 6433    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6434        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6435            return;
 6436        };
 6437        let windows = cx.windows();
 6438        let next_window =
 6439            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6440                || {
 6441                    windows
 6442                        .iter()
 6443                        .cycle()
 6444                        .skip_while(|window| window.window_id() != current_window_id)
 6445                        .nth(1)
 6446                },
 6447            );
 6448
 6449        if let Some(window) = next_window {
 6450            window
 6451                .update(cx, |_, window, _| window.activate_window())
 6452                .ok();
 6453        }
 6454    }
 6455
 6456    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6457        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6458            return;
 6459        };
 6460        let windows = cx.windows();
 6461        let prev_window =
 6462            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6463                || {
 6464                    windows
 6465                        .iter()
 6466                        .rev()
 6467                        .cycle()
 6468                        .skip_while(|window| window.window_id() != current_window_id)
 6469                        .nth(1)
 6470                },
 6471            );
 6472
 6473        if let Some(window) = prev_window {
 6474            window
 6475                .update(cx, |_, window, _| window.activate_window())
 6476                .ok();
 6477        }
 6478    }
 6479
 6480    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6481        if cx.stop_active_drag(window) {
 6482        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6483            dismiss_app_notification(&notification_id, cx);
 6484        } else {
 6485            cx.propagate();
 6486        }
 6487    }
 6488
 6489    fn adjust_dock_size_by_px(
 6490        &mut self,
 6491        panel_size: Pixels,
 6492        dock_pos: DockPosition,
 6493        px: Pixels,
 6494        window: &mut Window,
 6495        cx: &mut Context<Self>,
 6496    ) {
 6497        match dock_pos {
 6498            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6499            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6500            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6501        }
 6502    }
 6503
 6504    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6505        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6506
 6507        self.left_dock.update(cx, |left_dock, cx| {
 6508            if WorkspaceSettings::get_global(cx)
 6509                .resize_all_panels_in_dock
 6510                .contains(&DockPosition::Left)
 6511            {
 6512                left_dock.resize_all_panels(Some(size), window, cx);
 6513            } else {
 6514                left_dock.resize_active_panel(Some(size), window, cx);
 6515            }
 6516        });
 6517        self.clamp_utility_pane_widths(window, cx);
 6518    }
 6519
 6520    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6521        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6522        self.left_dock.read_with(cx, |left_dock, cx| {
 6523            let left_dock_size = left_dock
 6524                .active_panel_size(window, cx)
 6525                .unwrap_or(Pixels::ZERO);
 6526            if left_dock_size + size > self.bounds.right() {
 6527                size = self.bounds.right() - left_dock_size
 6528            }
 6529        });
 6530        self.right_dock.update(cx, |right_dock, cx| {
 6531            if WorkspaceSettings::get_global(cx)
 6532                .resize_all_panels_in_dock
 6533                .contains(&DockPosition::Right)
 6534            {
 6535                right_dock.resize_all_panels(Some(size), window, cx);
 6536            } else {
 6537                right_dock.resize_active_panel(Some(size), window, cx);
 6538            }
 6539        });
 6540        self.clamp_utility_pane_widths(window, cx);
 6541    }
 6542
 6543    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6544        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6545        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6546            if WorkspaceSettings::get_global(cx)
 6547                .resize_all_panels_in_dock
 6548                .contains(&DockPosition::Bottom)
 6549            {
 6550                bottom_dock.resize_all_panels(Some(size), window, cx);
 6551            } else {
 6552                bottom_dock.resize_active_panel(Some(size), window, cx);
 6553            }
 6554        });
 6555        self.clamp_utility_pane_widths(window, cx);
 6556    }
 6557
 6558    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6559        let left_dock_width = self
 6560            .left_dock
 6561            .read(cx)
 6562            .active_panel_size(window, cx)
 6563            .unwrap_or(px(0.0));
 6564        let right_dock_width = self
 6565            .right_dock
 6566            .read(cx)
 6567            .active_panel_size(window, cx)
 6568            .unwrap_or(px(0.0));
 6569        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6570        center_pane_width - px(10.0)
 6571    }
 6572
 6573    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6574        let max_width = self.max_utility_pane_width(window, cx);
 6575
 6576        // Clamp left slot utility pane if it exists
 6577        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6578            let current_width = handle.width(cx);
 6579            if current_width > max_width {
 6580                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6581            }
 6582        }
 6583
 6584        // Clamp right slot utility pane if it exists
 6585        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6586            let current_width = handle.width(cx);
 6587            if current_width > max_width {
 6588                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6589            }
 6590        }
 6591    }
 6592
 6593    fn toggle_edit_predictions_all_files(
 6594        &mut self,
 6595        _: &ToggleEditPrediction,
 6596        _window: &mut Window,
 6597        cx: &mut Context<Self>,
 6598    ) {
 6599        let fs = self.project().read(cx).fs().clone();
 6600        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6601        update_settings_file(fs, cx, move |file, _| {
 6602            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6603        });
 6604    }
 6605
 6606    pub fn show_worktree_trust_security_modal(
 6607        &mut self,
 6608        toggle: bool,
 6609        window: &mut Window,
 6610        cx: &mut Context<Self>,
 6611    ) {
 6612        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6613            if toggle {
 6614                security_modal.update(cx, |security_modal, cx| {
 6615                    security_modal.dismiss(cx);
 6616                })
 6617            } else {
 6618                security_modal.update(cx, |security_modal, cx| {
 6619                    security_modal.refresh_restricted_paths(cx);
 6620                });
 6621            }
 6622        } else {
 6623            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6624                .map(|trusted_worktrees| {
 6625                    trusted_worktrees
 6626                        .read(cx)
 6627                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6628                })
 6629                .unwrap_or(false);
 6630            if has_restricted_worktrees {
 6631                let project = self.project().read(cx);
 6632                let remote_host = project
 6633                    .remote_connection_options(cx)
 6634                    .map(RemoteHostLocation::from);
 6635                let worktree_store = project.worktree_store().downgrade();
 6636                self.toggle_modal(window, cx, |_, cx| {
 6637                    SecurityModal::new(worktree_store, remote_host, cx)
 6638                });
 6639            }
 6640        }
 6641    }
 6642
 6643    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6644        self.update_window_title(window, cx);
 6645        self.serialize_workspace(window, cx);
 6646        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6647        self.update_history(cx);
 6648    }
 6649}
 6650
 6651fn leader_border_for_pane(
 6652    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6653    pane: &Entity<Pane>,
 6654    _: &Window,
 6655    cx: &App,
 6656) -> Option<Div> {
 6657    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6658        if state.pane() == pane {
 6659            Some((*leader_id, state))
 6660        } else {
 6661            None
 6662        }
 6663    })?;
 6664
 6665    let mut leader_color = match leader_id {
 6666        CollaboratorId::PeerId(leader_peer_id) => {
 6667            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6668            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6669
 6670            cx.theme()
 6671                .players()
 6672                .color_for_participant(leader.participant_index.0)
 6673                .cursor
 6674        }
 6675        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6676    };
 6677    leader_color.fade_out(0.3);
 6678    Some(
 6679        div()
 6680            .absolute()
 6681            .size_full()
 6682            .left_0()
 6683            .top_0()
 6684            .border_2()
 6685            .border_color(leader_color),
 6686    )
 6687}
 6688
 6689fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6690    ZED_WINDOW_POSITION
 6691        .zip(*ZED_WINDOW_SIZE)
 6692        .map(|(position, size)| Bounds {
 6693            origin: position,
 6694            size,
 6695        })
 6696}
 6697
 6698fn open_items(
 6699    serialized_workspace: Option<SerializedWorkspace>,
 6700    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6701    window: &mut Window,
 6702    cx: &mut Context<Workspace>,
 6703) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6704    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6705        Workspace::load_workspace(
 6706            serialized_workspace,
 6707            project_paths_to_open
 6708                .iter()
 6709                .map(|(_, project_path)| project_path)
 6710                .cloned()
 6711                .collect(),
 6712            window,
 6713            cx,
 6714        )
 6715    });
 6716
 6717    cx.spawn_in(window, async move |workspace, cx| {
 6718        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6719
 6720        if let Some(restored_items) = restored_items {
 6721            let restored_items = restored_items.await?;
 6722
 6723            let restored_project_paths = restored_items
 6724                .iter()
 6725                .filter_map(|item| {
 6726                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6727                        .ok()
 6728                        .flatten()
 6729                })
 6730                .collect::<HashSet<_>>();
 6731
 6732            for restored_item in restored_items {
 6733                opened_items.push(restored_item.map(Ok));
 6734            }
 6735
 6736            project_paths_to_open
 6737                .iter_mut()
 6738                .for_each(|(_, project_path)| {
 6739                    if let Some(project_path_to_open) = project_path
 6740                        && restored_project_paths.contains(project_path_to_open)
 6741                    {
 6742                        *project_path = None;
 6743                    }
 6744                });
 6745        } else {
 6746            for _ in 0..project_paths_to_open.len() {
 6747                opened_items.push(None);
 6748            }
 6749        }
 6750        assert!(opened_items.len() == project_paths_to_open.len());
 6751
 6752        let tasks =
 6753            project_paths_to_open
 6754                .into_iter()
 6755                .enumerate()
 6756                .map(|(ix, (abs_path, project_path))| {
 6757                    let workspace = workspace.clone();
 6758                    cx.spawn(async move |cx| {
 6759                        let file_project_path = project_path?;
 6760                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6761                            workspace.project().update(cx, |project, cx| {
 6762                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6763                            })
 6764                        });
 6765
 6766                        // We only want to open file paths here. If one of the items
 6767                        // here is a directory, it was already opened further above
 6768                        // with a `find_or_create_worktree`.
 6769                        if let Ok(task) = abs_path_task
 6770                            && task.await.is_none_or(|p| p.is_file())
 6771                        {
 6772                            return Some((
 6773                                ix,
 6774                                workspace
 6775                                    .update_in(cx, |workspace, window, cx| {
 6776                                        workspace.open_path(
 6777                                            file_project_path,
 6778                                            None,
 6779                                            true,
 6780                                            window,
 6781                                            cx,
 6782                                        )
 6783                                    })
 6784                                    .log_err()?
 6785                                    .await,
 6786                            ));
 6787                        }
 6788                        None
 6789                    })
 6790                });
 6791
 6792        let tasks = tasks.collect::<Vec<_>>();
 6793
 6794        let tasks = futures::future::join_all(tasks);
 6795        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6796            opened_items[ix] = Some(path_open_result);
 6797        }
 6798
 6799        Ok(opened_items)
 6800    })
 6801}
 6802
 6803enum ActivateInDirectionTarget {
 6804    Pane(Entity<Pane>),
 6805    Dock(Entity<Dock>),
 6806}
 6807
 6808fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6809    workspace
 6810        .update(cx, |workspace, _, cx| {
 6811            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6812                struct DatabaseFailedNotification;
 6813
 6814                workspace.show_notification(
 6815                    NotificationId::unique::<DatabaseFailedNotification>(),
 6816                    cx,
 6817                    |cx| {
 6818                        cx.new(|cx| {
 6819                            MessageNotification::new("Failed to load the database file.", cx)
 6820                                .primary_message("File an Issue")
 6821                                .primary_icon(IconName::Plus)
 6822                                .primary_on_click(|window, cx| {
 6823                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6824                                })
 6825                        })
 6826                    },
 6827                );
 6828            }
 6829        })
 6830        .log_err();
 6831}
 6832
 6833fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6834    if val == 0 {
 6835        ThemeSettings::get_global(cx).ui_font_size(cx)
 6836    } else {
 6837        px(val as f32)
 6838    }
 6839}
 6840
 6841fn adjust_active_dock_size_by_px(
 6842    px: Pixels,
 6843    workspace: &mut Workspace,
 6844    window: &mut Window,
 6845    cx: &mut Context<Workspace>,
 6846) {
 6847    let Some(active_dock) = workspace
 6848        .all_docks()
 6849        .into_iter()
 6850        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6851    else {
 6852        return;
 6853    };
 6854    let dock = active_dock.read(cx);
 6855    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6856        return;
 6857    };
 6858    let dock_pos = dock.position();
 6859    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6860}
 6861
 6862fn adjust_open_docks_size_by_px(
 6863    px: Pixels,
 6864    workspace: &mut Workspace,
 6865    window: &mut Window,
 6866    cx: &mut Context<Workspace>,
 6867) {
 6868    let docks = workspace
 6869        .all_docks()
 6870        .into_iter()
 6871        .filter_map(|dock| {
 6872            if dock.read(cx).is_open() {
 6873                let dock = dock.read(cx);
 6874                let panel_size = dock.active_panel_size(window, cx)?;
 6875                let dock_pos = dock.position();
 6876                Some((panel_size, dock_pos, px))
 6877            } else {
 6878                None
 6879            }
 6880        })
 6881        .collect::<Vec<_>>();
 6882
 6883    docks
 6884        .into_iter()
 6885        .for_each(|(panel_size, dock_pos, offset)| {
 6886            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6887        });
 6888}
 6889
 6890impl Focusable for Workspace {
 6891    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6892        self.active_pane.focus_handle(cx)
 6893    }
 6894}
 6895
 6896#[derive(Clone)]
 6897struct DraggedDock(DockPosition);
 6898
 6899impl Render for DraggedDock {
 6900    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6901        gpui::Empty
 6902    }
 6903}
 6904
 6905impl Render for Workspace {
 6906    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6907        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6908        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6909            log::info!("Rendered first frame");
 6910        }
 6911        let mut context = KeyContext::new_with_defaults();
 6912        context.add("Workspace");
 6913        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6914        if let Some(status) = self
 6915            .debugger_provider
 6916            .as_ref()
 6917            .and_then(|provider| provider.active_thread_state(cx))
 6918        {
 6919            match status {
 6920                ThreadStatus::Running | ThreadStatus::Stepping => {
 6921                    context.add("debugger_running");
 6922                }
 6923                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6924                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6925            }
 6926        }
 6927
 6928        if self.left_dock.read(cx).is_open() {
 6929            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6930                context.set("left_dock", active_panel.panel_key());
 6931            }
 6932        }
 6933
 6934        if self.right_dock.read(cx).is_open() {
 6935            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6936                context.set("right_dock", active_panel.panel_key());
 6937            }
 6938        }
 6939
 6940        if self.bottom_dock.read(cx).is_open() {
 6941            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6942                context.set("bottom_dock", active_panel.panel_key());
 6943            }
 6944        }
 6945
 6946        let centered_layout = self.centered_layout
 6947            && self.center.panes().len() == 1
 6948            && self.active_item(cx).is_some();
 6949        let render_padding = |size| {
 6950            (size > 0.0).then(|| {
 6951                div()
 6952                    .h_full()
 6953                    .w(relative(size))
 6954                    .bg(cx.theme().colors().editor_background)
 6955                    .border_color(cx.theme().colors().pane_group_border)
 6956            })
 6957        };
 6958        let paddings = if centered_layout {
 6959            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6960            (
 6961                render_padding(Self::adjust_padding(
 6962                    settings.left_padding.map(|padding| padding.0),
 6963                )),
 6964                render_padding(Self::adjust_padding(
 6965                    settings.right_padding.map(|padding| padding.0),
 6966                )),
 6967            )
 6968        } else {
 6969            (None, None)
 6970        };
 6971        let ui_font = theme::setup_ui_font(window, cx);
 6972
 6973        let theme = cx.theme().clone();
 6974        let colors = theme.colors();
 6975        let notification_entities = self
 6976            .notifications
 6977            .iter()
 6978            .map(|(_, notification)| notification.entity_id())
 6979            .collect::<Vec<_>>();
 6980        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6981
 6982        client_side_decorations(
 6983            self.actions(div(), window, cx)
 6984                .key_context(context)
 6985                .relative()
 6986                .size_full()
 6987                .flex()
 6988                .flex_col()
 6989                .font(ui_font)
 6990                .gap_0()
 6991                .justify_start()
 6992                .items_start()
 6993                .text_color(colors.text)
 6994                .overflow_hidden()
 6995                .children(self.titlebar_item.clone())
 6996                .on_modifiers_changed(move |_, _, cx| {
 6997                    for &id in &notification_entities {
 6998                        cx.notify(id);
 6999                    }
 7000                })
 7001                .child(
 7002                    div()
 7003                        .size_full()
 7004                        .relative()
 7005                        .flex_1()
 7006                        .flex()
 7007                        .flex_col()
 7008                        .child(
 7009                            div()
 7010                                .id("workspace")
 7011                                .bg(colors.background)
 7012                                .relative()
 7013                                .flex_1()
 7014                                .w_full()
 7015                                .flex()
 7016                                .flex_col()
 7017                                .overflow_hidden()
 7018                                .border_t_1()
 7019                                .border_b_1()
 7020                                .border_color(colors.border)
 7021                                .child({
 7022                                    let this = cx.entity();
 7023                                    canvas(
 7024                                        move |bounds, window, cx| {
 7025                                            this.update(cx, |this, cx| {
 7026                                                let bounds_changed = this.bounds != bounds;
 7027                                                this.bounds = bounds;
 7028
 7029                                                if bounds_changed {
 7030                                                    this.left_dock.update(cx, |dock, cx| {
 7031                                                        dock.clamp_panel_size(
 7032                                                            bounds.size.width,
 7033                                                            window,
 7034                                                            cx,
 7035                                                        )
 7036                                                    });
 7037
 7038                                                    this.right_dock.update(cx, |dock, cx| {
 7039                                                        dock.clamp_panel_size(
 7040                                                            bounds.size.width,
 7041                                                            window,
 7042                                                            cx,
 7043                                                        )
 7044                                                    });
 7045
 7046                                                    this.bottom_dock.update(cx, |dock, cx| {
 7047                                                        dock.clamp_panel_size(
 7048                                                            bounds.size.height,
 7049                                                            window,
 7050                                                            cx,
 7051                                                        )
 7052                                                    });
 7053                                                }
 7054                                            })
 7055                                        },
 7056                                        |_, _, _, _| {},
 7057                                    )
 7058                                    .absolute()
 7059                                    .size_full()
 7060                                })
 7061                                .when(self.zoomed.is_none(), |this| {
 7062                                    this.on_drag_move(cx.listener(
 7063                                        move |workspace,
 7064                                              e: &DragMoveEvent<DraggedDock>,
 7065                                              window,
 7066                                              cx| {
 7067                                            if workspace.previous_dock_drag_coordinates
 7068                                                != Some(e.event.position)
 7069                                            {
 7070                                                workspace.previous_dock_drag_coordinates =
 7071                                                    Some(e.event.position);
 7072                                                match e.drag(cx).0 {
 7073                                                    DockPosition::Left => {
 7074                                                        workspace.resize_left_dock(
 7075                                                            e.event.position.x
 7076                                                                - workspace.bounds.left(),
 7077                                                            window,
 7078                                                            cx,
 7079                                                        );
 7080                                                    }
 7081                                                    DockPosition::Right => {
 7082                                                        workspace.resize_right_dock(
 7083                                                            workspace.bounds.right()
 7084                                                                - e.event.position.x,
 7085                                                            window,
 7086                                                            cx,
 7087                                                        );
 7088                                                    }
 7089                                                    DockPosition::Bottom => {
 7090                                                        workspace.resize_bottom_dock(
 7091                                                            workspace.bounds.bottom()
 7092                                                                - e.event.position.y,
 7093                                                            window,
 7094                                                            cx,
 7095                                                        );
 7096                                                    }
 7097                                                };
 7098                                                workspace.serialize_workspace(window, cx);
 7099                                            }
 7100                                        },
 7101                                    ))
 7102                                    .on_drag_move(cx.listener(
 7103                                        move |workspace,
 7104                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7105                                              window,
 7106                                              cx| {
 7107                                            let slot = e.drag(cx).0;
 7108                                            match slot {
 7109                                                UtilityPaneSlot::Left => {
 7110                                                    let left_dock_width = workspace.left_dock.read(cx)
 7111                                                        .active_panel_size(window, cx)
 7112                                                        .unwrap_or(gpui::px(0.0));
 7113                                                    let new_width = e.event.position.x
 7114                                                        - workspace.bounds.left()
 7115                                                        - left_dock_width;
 7116                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7117                                                }
 7118                                                UtilityPaneSlot::Right => {
 7119                                                    let right_dock_width = workspace.right_dock.read(cx)
 7120                                                        .active_panel_size(window, cx)
 7121                                                        .unwrap_or(gpui::px(0.0));
 7122                                                    let new_width = workspace.bounds.right()
 7123                                                        - e.event.position.x
 7124                                                        - right_dock_width;
 7125                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7126                                                }
 7127                                            }
 7128                                        },
 7129                                    ))
 7130                                })
 7131                                .child({
 7132                                    match bottom_dock_layout {
 7133                                        BottomDockLayout::Full => div()
 7134                                            .flex()
 7135                                            .flex_col()
 7136                                            .h_full()
 7137                                            .child(
 7138                                                div()
 7139                                                    .flex()
 7140                                                    .flex_row()
 7141                                                    .flex_1()
 7142                                                    .overflow_hidden()
 7143                                                    .children(self.render_dock(
 7144                                                        DockPosition::Left,
 7145                                                        &self.left_dock,
 7146                                                        window,
 7147                                                        cx,
 7148                                                    ))
 7149                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7150                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7151                                                            this.when(pane.expanded(cx), |this| {
 7152                                                                this.child(
 7153                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7154                                                                )
 7155                                                            })
 7156                                                        })
 7157                                                    })
 7158                                                    .child(
 7159                                                        div()
 7160                                                            .flex()
 7161                                                            .flex_col()
 7162                                                            .flex_1()
 7163                                                            .overflow_hidden()
 7164                                                            .child(
 7165                                                                h_flex()
 7166                                                                    .flex_1()
 7167                                                                    .when_some(
 7168                                                                        paddings.0,
 7169                                                                        |this, p| {
 7170                                                                            this.child(
 7171                                                                                p.border_r_1(),
 7172                                                                            )
 7173                                                                        },
 7174                                                                    )
 7175                                                                    .child(self.center.render(
 7176                                                                        self.zoomed.as_ref(),
 7177                                                                        &PaneRenderContext {
 7178                                                                            follower_states:
 7179                                                                                &self.follower_states,
 7180                                                                            active_call: self.active_call(),
 7181                                                                            active_pane: &self.active_pane,
 7182                                                                            app_state: &self.app_state,
 7183                                                                            project: &self.project,
 7184                                                                            workspace: &self.weak_self,
 7185                                                                        },
 7186                                                                        window,
 7187                                                                        cx,
 7188                                                                    ))
 7189                                                                    .when_some(
 7190                                                                        paddings.1,
 7191                                                                        |this, p| {
 7192                                                                            this.child(
 7193                                                                                p.border_l_1(),
 7194                                                                            )
 7195                                                                        },
 7196                                                                    ),
 7197                                                            ),
 7198                                                    )
 7199                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7200                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7201                                                            this.when(pane.expanded(cx), |this| {
 7202                                                                this.child(
 7203                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7204                                                                )
 7205                                                            })
 7206                                                        })
 7207                                                    })
 7208                                                    .children(self.render_dock(
 7209                                                        DockPosition::Right,
 7210                                                        &self.right_dock,
 7211                                                        window,
 7212                                                        cx,
 7213                                                    )),
 7214                                            )
 7215                                            .child(div().w_full().children(self.render_dock(
 7216                                                DockPosition::Bottom,
 7217                                                &self.bottom_dock,
 7218                                                window,
 7219                                                cx
 7220                                            ))),
 7221
 7222                                        BottomDockLayout::LeftAligned => div()
 7223                                            .flex()
 7224                                            .flex_row()
 7225                                            .h_full()
 7226                                            .child(
 7227                                                div()
 7228                                                    .flex()
 7229                                                    .flex_col()
 7230                                                    .flex_1()
 7231                                                    .h_full()
 7232                                                    .child(
 7233                                                        div()
 7234                                                            .flex()
 7235                                                            .flex_row()
 7236                                                            .flex_1()
 7237                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7238                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7239                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7240                                                                    this.when(pane.expanded(cx), |this| {
 7241                                                                        this.child(
 7242                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7243                                                                        )
 7244                                                                    })
 7245                                                                })
 7246                                                            })
 7247                                                            .child(
 7248                                                                div()
 7249                                                                    .flex()
 7250                                                                    .flex_col()
 7251                                                                    .flex_1()
 7252                                                                    .overflow_hidden()
 7253                                                                    .child(
 7254                                                                        h_flex()
 7255                                                                            .flex_1()
 7256                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7257                                                                            .child(self.center.render(
 7258                                                                                self.zoomed.as_ref(),
 7259                                                                                &PaneRenderContext {
 7260                                                                                    follower_states:
 7261                                                                                        &self.follower_states,
 7262                                                                                    active_call: self.active_call(),
 7263                                                                                    active_pane: &self.active_pane,
 7264                                                                                    app_state: &self.app_state,
 7265                                                                                    project: &self.project,
 7266                                                                                    workspace: &self.weak_self,
 7267                                                                                },
 7268                                                                                window,
 7269                                                                                cx,
 7270                                                                            ))
 7271                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7272                                                                    )
 7273                                                            )
 7274                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7275                                                                this.when(pane.expanded(cx), |this| {
 7276                                                                    this.child(
 7277                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7278                                                                    )
 7279                                                                })
 7280                                                            })
 7281                                                    )
 7282                                                    .child(
 7283                                                        div()
 7284                                                            .w_full()
 7285                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7286                                                    ),
 7287                                            )
 7288                                            .children(self.render_dock(
 7289                                                DockPosition::Right,
 7290                                                &self.right_dock,
 7291                                                window,
 7292                                                cx,
 7293                                            )),
 7294
 7295                                        BottomDockLayout::RightAligned => div()
 7296                                            .flex()
 7297                                            .flex_row()
 7298                                            .h_full()
 7299                                            .children(self.render_dock(
 7300                                                DockPosition::Left,
 7301                                                &self.left_dock,
 7302                                                window,
 7303                                                cx,
 7304                                            ))
 7305                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7306                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7307                                                    this.when(pane.expanded(cx), |this| {
 7308                                                        this.child(
 7309                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7310                                                        )
 7311                                                    })
 7312                                                })
 7313                                            })
 7314                                            .child(
 7315                                                div()
 7316                                                    .flex()
 7317                                                    .flex_col()
 7318                                                    .flex_1()
 7319                                                    .h_full()
 7320                                                    .child(
 7321                                                        div()
 7322                                                            .flex()
 7323                                                            .flex_row()
 7324                                                            .flex_1()
 7325                                                            .child(
 7326                                                                div()
 7327                                                                    .flex()
 7328                                                                    .flex_col()
 7329                                                                    .flex_1()
 7330                                                                    .overflow_hidden()
 7331                                                                    .child(
 7332                                                                        h_flex()
 7333                                                                            .flex_1()
 7334                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7335                                                                            .child(self.center.render(
 7336                                                                                self.zoomed.as_ref(),
 7337                                                                                &PaneRenderContext {
 7338                                                                                    follower_states:
 7339                                                                                        &self.follower_states,
 7340                                                                                    active_call: self.active_call(),
 7341                                                                                    active_pane: &self.active_pane,
 7342                                                                                    app_state: &self.app_state,
 7343                                                                                    project: &self.project,
 7344                                                                                    workspace: &self.weak_self,
 7345                                                                                },
 7346                                                                                window,
 7347                                                                                cx,
 7348                                                                            ))
 7349                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7350                                                                    )
 7351                                                            )
 7352                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7353                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7354                                                                    this.when(pane.expanded(cx), |this| {
 7355                                                                        this.child(
 7356                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7357                                                                        )
 7358                                                                    })
 7359                                                                })
 7360                                                            })
 7361                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7362                                                    )
 7363                                                    .child(
 7364                                                        div()
 7365                                                            .w_full()
 7366                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7367                                                    ),
 7368                                            ),
 7369
 7370                                        BottomDockLayout::Contained => div()
 7371                                            .flex()
 7372                                            .flex_row()
 7373                                            .h_full()
 7374                                            .children(self.render_dock(
 7375                                                DockPosition::Left,
 7376                                                &self.left_dock,
 7377                                                window,
 7378                                                cx,
 7379                                            ))
 7380                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7381                                                this.when(pane.expanded(cx), |this| {
 7382                                                    this.child(
 7383                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7384                                                    )
 7385                                                })
 7386                                            })
 7387                                            .child(
 7388                                                div()
 7389                                                    .flex()
 7390                                                    .flex_col()
 7391                                                    .flex_1()
 7392                                                    .overflow_hidden()
 7393                                                    .child(
 7394                                                        h_flex()
 7395                                                            .flex_1()
 7396                                                            .when_some(paddings.0, |this, p| {
 7397                                                                this.child(p.border_r_1())
 7398                                                            })
 7399                                                            .child(self.center.render(
 7400                                                                self.zoomed.as_ref(),
 7401                                                                &PaneRenderContext {
 7402                                                                    follower_states:
 7403                                                                        &self.follower_states,
 7404                                                                    active_call: self.active_call(),
 7405                                                                    active_pane: &self.active_pane,
 7406                                                                    app_state: &self.app_state,
 7407                                                                    project: &self.project,
 7408                                                                    workspace: &self.weak_self,
 7409                                                                },
 7410                                                                window,
 7411                                                                cx,
 7412                                                            ))
 7413                                                            .when_some(paddings.1, |this, p| {
 7414                                                                this.child(p.border_l_1())
 7415                                                            }),
 7416                                                    )
 7417                                                    .children(self.render_dock(
 7418                                                        DockPosition::Bottom,
 7419                                                        &self.bottom_dock,
 7420                                                        window,
 7421                                                        cx,
 7422                                                    )),
 7423                                            )
 7424                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7425                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7426                                                    this.when(pane.expanded(cx), |this| {
 7427                                                        this.child(
 7428                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7429                                                        )
 7430                                                    })
 7431                                                })
 7432                                            })
 7433                                            .children(self.render_dock(
 7434                                                DockPosition::Right,
 7435                                                &self.right_dock,
 7436                                                window,
 7437                                                cx,
 7438                                            )),
 7439                                    }
 7440                                })
 7441                                .children(self.zoomed.as_ref().and_then(|view| {
 7442                                    let zoomed_view = view.upgrade()?;
 7443                                    let div = div()
 7444                                        .occlude()
 7445                                        .absolute()
 7446                                        .overflow_hidden()
 7447                                        .border_color(colors.border)
 7448                                        .bg(colors.background)
 7449                                        .child(zoomed_view)
 7450                                        .inset_0()
 7451                                        .shadow_lg();
 7452
 7453                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7454                                       return Some(div);
 7455                                    }
 7456
 7457                                    Some(match self.zoomed_position {
 7458                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7459                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7460                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7461                                        None => {
 7462                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7463                                        }
 7464                                    })
 7465                                }))
 7466                                .children(self.render_notifications(window, cx)),
 7467                        )
 7468                        .when(self.status_bar_visible(cx), |parent| {
 7469                            parent.child(self.status_bar.clone())
 7470                        })
 7471                        .child(self.modal_layer.clone())
 7472                        .child(self.toast_layer.clone()),
 7473                ),
 7474            window,
 7475            cx,
 7476        )
 7477    }
 7478}
 7479
 7480impl WorkspaceStore {
 7481    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7482        Self {
 7483            workspaces: Default::default(),
 7484            _subscriptions: vec![
 7485                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7486                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7487            ],
 7488            client,
 7489        }
 7490    }
 7491
 7492    pub fn update_followers(
 7493        &self,
 7494        project_id: Option<u64>,
 7495        update: proto::update_followers::Variant,
 7496        cx: &App,
 7497    ) -> Option<()> {
 7498        let active_call = ActiveCall::try_global(cx)?;
 7499        let room_id = active_call.read(cx).room()?.read(cx).id();
 7500        self.client
 7501            .send(proto::UpdateFollowers {
 7502                room_id,
 7503                project_id,
 7504                variant: Some(update),
 7505            })
 7506            .log_err()
 7507    }
 7508
 7509    pub async fn handle_follow(
 7510        this: Entity<Self>,
 7511        envelope: TypedEnvelope<proto::Follow>,
 7512        mut cx: AsyncApp,
 7513    ) -> Result<proto::FollowResponse> {
 7514        this.update(&mut cx, |this, cx| {
 7515            let follower = Follower {
 7516                project_id: envelope.payload.project_id,
 7517                peer_id: envelope.original_sender_id()?,
 7518            };
 7519
 7520            let mut response = proto::FollowResponse::default();
 7521            this.workspaces.retain(|workspace| {
 7522                workspace
 7523                    .update(cx, |workspace, window, cx| {
 7524                        let handler_response =
 7525                            workspace.handle_follow(follower.project_id, window, cx);
 7526                        if let Some(active_view) = handler_response.active_view
 7527                            && workspace.project.read(cx).remote_id() == follower.project_id
 7528                        {
 7529                            response.active_view = Some(active_view)
 7530                        }
 7531                    })
 7532                    .is_ok()
 7533            });
 7534
 7535            Ok(response)
 7536        })?
 7537    }
 7538
 7539    async fn handle_update_followers(
 7540        this: Entity<Self>,
 7541        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7542        mut cx: AsyncApp,
 7543    ) -> Result<()> {
 7544        let leader_id = envelope.original_sender_id()?;
 7545        let update = envelope.payload;
 7546
 7547        this.update(&mut cx, |this, cx| {
 7548            this.workspaces.retain(|workspace| {
 7549                workspace
 7550                    .update(cx, |workspace, window, cx| {
 7551                        let project_id = workspace.project.read(cx).remote_id();
 7552                        if update.project_id != project_id && update.project_id.is_some() {
 7553                            return;
 7554                        }
 7555                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7556                    })
 7557                    .is_ok()
 7558            });
 7559            Ok(())
 7560        })?
 7561    }
 7562
 7563    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7564        &self.workspaces
 7565    }
 7566}
 7567
 7568impl ViewId {
 7569    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7570        Ok(Self {
 7571            creator: message
 7572                .creator
 7573                .map(CollaboratorId::PeerId)
 7574                .context("creator is missing")?,
 7575            id: message.id,
 7576        })
 7577    }
 7578
 7579    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7580        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7581            Some(proto::ViewId {
 7582                creator: Some(peer_id),
 7583                id: self.id,
 7584            })
 7585        } else {
 7586            None
 7587        }
 7588    }
 7589}
 7590
 7591impl FollowerState {
 7592    fn pane(&self) -> &Entity<Pane> {
 7593        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7594    }
 7595}
 7596
 7597pub trait WorkspaceHandle {
 7598    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7599}
 7600
 7601impl WorkspaceHandle for Entity<Workspace> {
 7602    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7603        self.read(cx)
 7604            .worktrees(cx)
 7605            .flat_map(|worktree| {
 7606                let worktree_id = worktree.read(cx).id();
 7607                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7608                    worktree_id,
 7609                    path: f.path.clone(),
 7610                })
 7611            })
 7612            .collect::<Vec<_>>()
 7613    }
 7614}
 7615
 7616pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7617    DB.last_workspace().await.log_err().flatten()
 7618}
 7619
 7620pub fn last_session_workspace_locations(
 7621    last_session_id: &str,
 7622    last_session_window_stack: Option<Vec<WindowId>>,
 7623) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7624    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7625        .log_err()
 7626}
 7627
 7628actions!(
 7629    collab,
 7630    [
 7631        /// Opens the channel notes for the current call.
 7632        ///
 7633        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7634        /// channel in the collab panel.
 7635        ///
 7636        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7637        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7638        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7639        OpenChannelNotes,
 7640        /// Mutes your microphone.
 7641        Mute,
 7642        /// Deafens yourself (mute both microphone and speakers).
 7643        Deafen,
 7644        /// Leaves the current call.
 7645        LeaveCall,
 7646        /// Shares the current project with collaborators.
 7647        ShareProject,
 7648        /// Shares your screen with collaborators.
 7649        ScreenShare,
 7650        /// Copies the current room name and session id for debugging purposes.
 7651        CopyRoomId,
 7652    ]
 7653);
 7654actions!(
 7655    zed,
 7656    [
 7657        /// Opens the Zed log file.
 7658        OpenLog,
 7659        /// Reveals the Zed log file in the system file manager.
 7660        RevealLogInFileManager
 7661    ]
 7662);
 7663
 7664async fn join_channel_internal(
 7665    channel_id: ChannelId,
 7666    app_state: &Arc<AppState>,
 7667    requesting_window: Option<WindowHandle<Workspace>>,
 7668    active_call: &Entity<ActiveCall>,
 7669    cx: &mut AsyncApp,
 7670) -> Result<bool> {
 7671    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7672        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7673            return (false, None);
 7674        };
 7675
 7676        let already_in_channel = room.channel_id() == Some(channel_id);
 7677        let should_prompt = room.is_sharing_project()
 7678            && !room.remote_participants().is_empty()
 7679            && !already_in_channel;
 7680        let open_room = if already_in_channel {
 7681            active_call.room().cloned()
 7682        } else {
 7683            None
 7684        };
 7685        (should_prompt, open_room)
 7686    })?;
 7687
 7688    if let Some(room) = open_room {
 7689        let task = room.update(cx, |room, cx| {
 7690            if let Some((project, host)) = room.most_active_project(cx) {
 7691                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7692            }
 7693
 7694            None
 7695        })?;
 7696        if let Some(task) = task {
 7697            task.await?;
 7698        }
 7699        return anyhow::Ok(true);
 7700    }
 7701
 7702    if should_prompt {
 7703        if let Some(workspace) = requesting_window {
 7704            let answer = workspace
 7705                .update(cx, |_, window, cx| {
 7706                    window.prompt(
 7707                        PromptLevel::Warning,
 7708                        "Do you want to switch channels?",
 7709                        Some("Leaving this call will unshare your current project."),
 7710                        &["Yes, Join Channel", "Cancel"],
 7711                        cx,
 7712                    )
 7713                })?
 7714                .await;
 7715
 7716            if answer == Ok(1) {
 7717                return Ok(false);
 7718            }
 7719        } else {
 7720            return Ok(false); // unreachable!() hopefully
 7721        }
 7722    }
 7723
 7724    let client = cx.update(|cx| active_call.read(cx).client())?;
 7725
 7726    let mut client_status = client.status();
 7727
 7728    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7729    'outer: loop {
 7730        let Some(status) = client_status.recv().await else {
 7731            anyhow::bail!("error connecting");
 7732        };
 7733
 7734        match status {
 7735            Status::Connecting
 7736            | Status::Authenticating
 7737            | Status::Authenticated
 7738            | Status::Reconnecting
 7739            | Status::Reauthenticating
 7740            | Status::Reauthenticated => continue,
 7741            Status::Connected { .. } => break 'outer,
 7742            Status::SignedOut | Status::AuthenticationError => {
 7743                return Err(ErrorCode::SignedOut.into());
 7744            }
 7745            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7746            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7747                return Err(ErrorCode::Disconnected.into());
 7748            }
 7749        }
 7750    }
 7751
 7752    let room = active_call
 7753        .update(cx, |active_call, cx| {
 7754            active_call.join_channel(channel_id, cx)
 7755        })?
 7756        .await?;
 7757
 7758    let Some(room) = room else {
 7759        return anyhow::Ok(true);
 7760    };
 7761
 7762    room.update(cx, |room, _| room.room_update_completed())?
 7763        .await;
 7764
 7765    let task = room.update(cx, |room, cx| {
 7766        if let Some((project, host)) = room.most_active_project(cx) {
 7767            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7768        }
 7769
 7770        // If you are the first to join a channel, see if you should share your project.
 7771        if room.remote_participants().is_empty()
 7772            && !room.local_participant_is_guest()
 7773            && let Some(workspace) = requesting_window
 7774        {
 7775            let project = workspace.update(cx, |workspace, _, cx| {
 7776                let project = workspace.project.read(cx);
 7777
 7778                if !CallSettings::get_global(cx).share_on_join {
 7779                    return None;
 7780                }
 7781
 7782                if (project.is_local() || project.is_via_remote_server())
 7783                    && project.visible_worktrees(cx).any(|tree| {
 7784                        tree.read(cx)
 7785                            .root_entry()
 7786                            .is_some_and(|entry| entry.is_dir())
 7787                    })
 7788                {
 7789                    Some(workspace.project.clone())
 7790                } else {
 7791                    None
 7792                }
 7793            });
 7794            if let Ok(Some(project)) = project {
 7795                return Some(cx.spawn(async move |room, cx| {
 7796                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7797                        .await?;
 7798                    Ok(())
 7799                }));
 7800            }
 7801        }
 7802
 7803        None
 7804    })?;
 7805    if let Some(task) = task {
 7806        task.await?;
 7807        return anyhow::Ok(true);
 7808    }
 7809    anyhow::Ok(false)
 7810}
 7811
 7812pub fn join_channel(
 7813    channel_id: ChannelId,
 7814    app_state: Arc<AppState>,
 7815    requesting_window: Option<WindowHandle<Workspace>>,
 7816    cx: &mut App,
 7817) -> Task<Result<()>> {
 7818    let active_call = ActiveCall::global(cx);
 7819    cx.spawn(async move |cx| {
 7820        let result =
 7821            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7822                .await;
 7823
 7824        // join channel succeeded, and opened a window
 7825        if matches!(result, Ok(true)) {
 7826            return anyhow::Ok(());
 7827        }
 7828
 7829        // find an existing workspace to focus and show call controls
 7830        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7831        if active_window.is_none() {
 7832            // no open workspaces, make one to show the error in (blergh)
 7833            let (window_handle, _) = cx
 7834                .update(|cx| {
 7835                    Workspace::new_local(
 7836                        vec![],
 7837                        app_state.clone(),
 7838                        requesting_window,
 7839                        None,
 7840                        None,
 7841                        cx,
 7842                    )
 7843                })?
 7844                .await?;
 7845
 7846            if result.is_ok() {
 7847                cx.update(|cx| {
 7848                    cx.dispatch_action(&OpenChannelNotes);
 7849                })
 7850                .log_err();
 7851            }
 7852
 7853            active_window = Some(window_handle);
 7854        }
 7855
 7856        if let Err(err) = result {
 7857            log::error!("failed to join channel: {}", err);
 7858            if let Some(active_window) = active_window {
 7859                active_window
 7860                    .update(cx, |_, window, cx| {
 7861                        let detail: SharedString = match err.error_code() {
 7862                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7863                            ErrorCode::UpgradeRequired => concat!(
 7864                                "Your are running an unsupported version of Zed. ",
 7865                                "Please update to continue."
 7866                            )
 7867                            .into(),
 7868                            ErrorCode::NoSuchChannel => concat!(
 7869                                "No matching channel was found. ",
 7870                                "Please check the link and try again."
 7871                            )
 7872                            .into(),
 7873                            ErrorCode::Forbidden => concat!(
 7874                                "This channel is private, and you do not have access. ",
 7875                                "Please ask someone to add you and try again."
 7876                            )
 7877                            .into(),
 7878                            ErrorCode::Disconnected => {
 7879                                "Please check your internet connection and try again.".into()
 7880                            }
 7881                            _ => format!("{}\n\nPlease try again.", err).into(),
 7882                        };
 7883                        window.prompt(
 7884                            PromptLevel::Critical,
 7885                            "Failed to join channel",
 7886                            Some(&detail),
 7887                            &["Ok"],
 7888                            cx,
 7889                        )
 7890                    })?
 7891                    .await
 7892                    .ok();
 7893            }
 7894        }
 7895
 7896        // return ok, we showed the error to the user.
 7897        anyhow::Ok(())
 7898    })
 7899}
 7900
 7901pub async fn get_any_active_workspace(
 7902    app_state: Arc<AppState>,
 7903    mut cx: AsyncApp,
 7904) -> anyhow::Result<WindowHandle<Workspace>> {
 7905    // find an existing workspace to focus and show call controls
 7906    let active_window = activate_any_workspace_window(&mut cx);
 7907    if active_window.is_none() {
 7908        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7909            .await?;
 7910    }
 7911    activate_any_workspace_window(&mut cx).context("could not open zed")
 7912}
 7913
 7914fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7915    cx.update(|cx| {
 7916        if let Some(workspace_window) = cx
 7917            .active_window()
 7918            .and_then(|window| window.downcast::<Workspace>())
 7919        {
 7920            return Some(workspace_window);
 7921        }
 7922
 7923        for window in cx.windows() {
 7924            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7925                workspace_window
 7926                    .update(cx, |_, window, _| window.activate_window())
 7927                    .ok();
 7928                return Some(workspace_window);
 7929            }
 7930        }
 7931        None
 7932    })
 7933    .ok()
 7934    .flatten()
 7935}
 7936
 7937pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7938    cx.windows()
 7939        .into_iter()
 7940        .filter_map(|window| window.downcast::<Workspace>())
 7941        .filter(|workspace| {
 7942            workspace
 7943                .read(cx)
 7944                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7945        })
 7946        .collect()
 7947}
 7948
 7949#[derive(Default)]
 7950pub struct OpenOptions {
 7951    pub visible: Option<OpenVisible>,
 7952    pub focus: Option<bool>,
 7953    pub open_new_workspace: Option<bool>,
 7954    pub prefer_focused_window: bool,
 7955    pub replace_window: Option<WindowHandle<Workspace>>,
 7956    pub env: Option<HashMap<String, String>>,
 7957}
 7958
 7959#[allow(clippy::type_complexity)]
 7960pub fn open_paths(
 7961    abs_paths: &[PathBuf],
 7962    app_state: Arc<AppState>,
 7963    open_options: OpenOptions,
 7964    cx: &mut App,
 7965) -> Task<
 7966    anyhow::Result<(
 7967        WindowHandle<Workspace>,
 7968        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7969    )>,
 7970> {
 7971    let abs_paths = abs_paths.to_vec();
 7972    let mut existing = None;
 7973    let mut best_match = None;
 7974    let mut open_visible = OpenVisible::All;
 7975    #[cfg(target_os = "windows")]
 7976    let wsl_path = abs_paths
 7977        .iter()
 7978        .find_map(|p| util::paths::WslPath::from_path(p));
 7979
 7980    cx.spawn(async move |cx| {
 7981        if open_options.open_new_workspace != Some(true) {
 7982            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7983            let all_metadatas = futures::future::join_all(all_paths)
 7984                .await
 7985                .into_iter()
 7986                .filter_map(|result| result.ok().flatten())
 7987                .collect::<Vec<_>>();
 7988
 7989            cx.update(|cx| {
 7990                for window in local_workspace_windows(cx) {
 7991                    if let Ok(workspace) = window.read(cx) {
 7992                        let m = workspace.project.read(cx).visibility_for_paths(
 7993                            &abs_paths,
 7994                            &all_metadatas,
 7995                            open_options.open_new_workspace == None,
 7996                            cx,
 7997                        );
 7998                        if m > best_match {
 7999                            existing = Some(window);
 8000                            best_match = m;
 8001                        } else if best_match.is_none()
 8002                            && open_options.open_new_workspace == Some(false)
 8003                        {
 8004                            existing = Some(window)
 8005                        }
 8006                    }
 8007                }
 8008            })?;
 8009
 8010            if open_options.open_new_workspace.is_none()
 8011                && (existing.is_none() || open_options.prefer_focused_window)
 8012                && all_metadatas.iter().all(|file| !file.is_dir)
 8013            {
 8014                cx.update(|cx| {
 8015                    if let Some(window) = cx
 8016                        .active_window()
 8017                        .and_then(|window| window.downcast::<Workspace>())
 8018                        && let Ok(workspace) = window.read(cx)
 8019                    {
 8020                        let project = workspace.project().read(cx);
 8021                        if project.is_local() && !project.is_via_collab() {
 8022                            existing = Some(window);
 8023                            open_visible = OpenVisible::None;
 8024                            return;
 8025                        }
 8026                    }
 8027                    for window in local_workspace_windows(cx) {
 8028                        if let Ok(workspace) = window.read(cx) {
 8029                            let project = workspace.project().read(cx);
 8030                            if project.is_via_collab() {
 8031                                continue;
 8032                            }
 8033                            existing = Some(window);
 8034                            open_visible = OpenVisible::None;
 8035                            break;
 8036                        }
 8037                    }
 8038                })?;
 8039            }
 8040        }
 8041
 8042        let result = if let Some(existing) = existing {
 8043            let open_task = existing
 8044                .update(cx, |workspace, window, cx| {
 8045                    window.activate_window();
 8046                    workspace.open_paths(
 8047                        abs_paths,
 8048                        OpenOptions {
 8049                            visible: Some(open_visible),
 8050                            ..Default::default()
 8051                        },
 8052                        None,
 8053                        window,
 8054                        cx,
 8055                    )
 8056                })?
 8057                .await;
 8058
 8059            _ = existing.update(cx, |workspace, _, cx| {
 8060                for item in open_task.iter().flatten() {
 8061                    if let Err(e) = item {
 8062                        workspace.show_error(&e, cx);
 8063                    }
 8064                }
 8065            });
 8066
 8067            Ok((existing, open_task))
 8068        } else {
 8069            cx.update(move |cx| {
 8070                Workspace::new_local(
 8071                    abs_paths,
 8072                    app_state.clone(),
 8073                    open_options.replace_window,
 8074                    open_options.env,
 8075                    None,
 8076                    cx,
 8077                )
 8078            })?
 8079            .await
 8080        };
 8081
 8082        #[cfg(target_os = "windows")]
 8083        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8084            && let Ok((workspace, _)) = &result
 8085        {
 8086            workspace
 8087                .update(cx, move |workspace, _window, cx| {
 8088                    struct OpenInWsl;
 8089                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8090                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8091                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8092                        cx.new(move |cx| {
 8093                            MessageNotification::new(msg, cx)
 8094                                .primary_message("Open in WSL")
 8095                                .primary_icon(IconName::FolderOpen)
 8096                                .primary_on_click(move |window, cx| {
 8097                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8098                                            distro: remote::WslConnectionOptions {
 8099                                                    distro_name: distro.clone(),
 8100                                                user: None,
 8101                                            },
 8102                                            paths: vec![path.clone().into()],
 8103                                        }), cx)
 8104                                })
 8105                        })
 8106                    });
 8107                })
 8108                .unwrap();
 8109        };
 8110        result
 8111    })
 8112}
 8113
 8114pub fn open_new(
 8115    open_options: OpenOptions,
 8116    app_state: Arc<AppState>,
 8117    cx: &mut App,
 8118    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8119) -> Task<anyhow::Result<()>> {
 8120    let task = Workspace::new_local(
 8121        Vec::new(),
 8122        app_state,
 8123        None,
 8124        open_options.env,
 8125        Some(Box::new(init)),
 8126        cx,
 8127    );
 8128    cx.spawn(async move |_cx| {
 8129        let (_workspace, _opened_paths) = task.await?;
 8130        // Init callback is called synchronously during workspace creation
 8131        Ok(())
 8132    })
 8133}
 8134
 8135pub fn create_and_open_local_file(
 8136    path: &'static Path,
 8137    window: &mut Window,
 8138    cx: &mut Context<Workspace>,
 8139    default_content: impl 'static + Send + FnOnce() -> Rope,
 8140) -> Task<Result<Box<dyn ItemHandle>>> {
 8141    cx.spawn_in(window, async move |workspace, cx| {
 8142        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8143        if !fs.is_file(path).await {
 8144            fs.create_file(path, Default::default()).await?;
 8145            fs.save(path, &default_content(), Default::default())
 8146                .await?;
 8147        }
 8148
 8149        let mut items = workspace
 8150            .update_in(cx, |workspace, window, cx| {
 8151                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8152                    workspace.open_paths(
 8153                        vec![path.to_path_buf()],
 8154                        OpenOptions {
 8155                            visible: Some(OpenVisible::None),
 8156                            ..Default::default()
 8157                        },
 8158                        None,
 8159                        window,
 8160                        cx,
 8161                    )
 8162                })
 8163            })?
 8164            .await?
 8165            .await;
 8166
 8167        let item = items.pop().flatten();
 8168        item.with_context(|| format!("path {path:?} is not a file"))?
 8169    })
 8170}
 8171
 8172pub fn open_remote_project_with_new_connection(
 8173    window: WindowHandle<Workspace>,
 8174    remote_connection: Arc<dyn RemoteConnection>,
 8175    cancel_rx: oneshot::Receiver<()>,
 8176    delegate: Arc<dyn RemoteClientDelegate>,
 8177    app_state: Arc<AppState>,
 8178    paths: Vec<PathBuf>,
 8179    cx: &mut App,
 8180) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8181    cx.spawn(async move |cx| {
 8182        let (workspace_id, serialized_workspace) =
 8183            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8184                .await?;
 8185
 8186        let session = match cx
 8187            .update(|cx| {
 8188                remote::RemoteClient::new(
 8189                    ConnectionIdentifier::Workspace(workspace_id.0),
 8190                    remote_connection,
 8191                    cancel_rx,
 8192                    delegate,
 8193                    cx,
 8194                )
 8195            })?
 8196            .await?
 8197        {
 8198            Some(result) => result,
 8199            None => return Ok(Vec::new()),
 8200        };
 8201
 8202        let project = cx.update(|cx| {
 8203            project::Project::remote(
 8204                session,
 8205                app_state.client.clone(),
 8206                app_state.node_runtime.clone(),
 8207                app_state.user_store.clone(),
 8208                app_state.languages.clone(),
 8209                app_state.fs.clone(),
 8210                true,
 8211                cx,
 8212            )
 8213        })?;
 8214
 8215        open_remote_project_inner(
 8216            project,
 8217            paths,
 8218            workspace_id,
 8219            serialized_workspace,
 8220            app_state,
 8221            window,
 8222            cx,
 8223        )
 8224        .await
 8225    })
 8226}
 8227
 8228pub fn open_remote_project_with_existing_connection(
 8229    connection_options: RemoteConnectionOptions,
 8230    project: Entity<Project>,
 8231    paths: Vec<PathBuf>,
 8232    app_state: Arc<AppState>,
 8233    window: WindowHandle<Workspace>,
 8234    cx: &mut AsyncApp,
 8235) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8236    cx.spawn(async move |cx| {
 8237        let (workspace_id, serialized_workspace) =
 8238            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8239
 8240        open_remote_project_inner(
 8241            project,
 8242            paths,
 8243            workspace_id,
 8244            serialized_workspace,
 8245            app_state,
 8246            window,
 8247            cx,
 8248        )
 8249        .await
 8250    })
 8251}
 8252
 8253async fn open_remote_project_inner(
 8254    project: Entity<Project>,
 8255    paths: Vec<PathBuf>,
 8256    workspace_id: WorkspaceId,
 8257    serialized_workspace: Option<SerializedWorkspace>,
 8258    app_state: Arc<AppState>,
 8259    window: WindowHandle<Workspace>,
 8260    cx: &mut AsyncApp,
 8261) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8262    let toolchains = DB.toolchains(workspace_id).await?;
 8263    for (toolchain, worktree_path, path) in toolchains {
 8264        project
 8265            .update(cx, |this, cx| {
 8266                let Some(worktree_id) =
 8267                    this.find_worktree(&worktree_path, cx)
 8268                        .and_then(|(worktree, rel_path)| {
 8269                            if rel_path.is_empty() {
 8270                                Some(worktree.read(cx).id())
 8271                            } else {
 8272                                None
 8273                            }
 8274                        })
 8275                else {
 8276                    return Task::ready(None);
 8277                };
 8278
 8279                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8280            })?
 8281            .await;
 8282    }
 8283    let mut project_paths_to_open = vec![];
 8284    let mut project_path_errors = vec![];
 8285
 8286    for path in paths {
 8287        let result = cx
 8288            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8289            .await;
 8290        match result {
 8291            Ok((_, project_path)) => {
 8292                project_paths_to_open.push((path.clone(), Some(project_path)));
 8293            }
 8294            Err(error) => {
 8295                project_path_errors.push(error);
 8296            }
 8297        };
 8298    }
 8299
 8300    if project_paths_to_open.is_empty() {
 8301        return Err(project_path_errors.pop().context("no paths given")?);
 8302    }
 8303
 8304    if let Some(detach_session_task) = window
 8305        .update(cx, |_workspace, window, cx| {
 8306            cx.spawn_in(window, async move |this, cx| {
 8307                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8308            })
 8309        })
 8310        .ok()
 8311    {
 8312        detach_session_task.await.ok();
 8313    }
 8314
 8315    cx.update_window(window.into(), |_, window, cx| {
 8316        window.replace_root(cx, |window, cx| {
 8317            telemetry::event!("SSH Project Opened");
 8318
 8319            let mut workspace =
 8320                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8321            workspace.update_history(cx);
 8322
 8323            if let Some(ref serialized) = serialized_workspace {
 8324                workspace.centered_layout = serialized.centered_layout;
 8325            }
 8326
 8327            workspace
 8328        });
 8329    })?;
 8330
 8331    let items = window
 8332        .update(cx, |_, window, cx| {
 8333            window.activate_window();
 8334            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8335        })?
 8336        .await?;
 8337
 8338    window.update(cx, |workspace, _, cx| {
 8339        for error in project_path_errors {
 8340            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8341                if let Some(path) = error.error_tag("path") {
 8342                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8343                }
 8344            } else {
 8345                workspace.show_error(&error, cx)
 8346            }
 8347        }
 8348    })?;
 8349
 8350    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8351}
 8352
 8353fn deserialize_remote_project(
 8354    connection_options: RemoteConnectionOptions,
 8355    paths: Vec<PathBuf>,
 8356    cx: &AsyncApp,
 8357) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8358    cx.background_spawn(async move {
 8359        let remote_connection_id = persistence::DB
 8360            .get_or_create_remote_connection(connection_options)
 8361            .await?;
 8362
 8363        let serialized_workspace =
 8364            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8365
 8366        let workspace_id = if let Some(workspace_id) =
 8367            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8368        {
 8369            workspace_id
 8370        } else {
 8371            persistence::DB.next_id().await?
 8372        };
 8373
 8374        Ok((workspace_id, serialized_workspace))
 8375    })
 8376}
 8377
 8378pub fn join_in_room_project(
 8379    project_id: u64,
 8380    follow_user_id: u64,
 8381    app_state: Arc<AppState>,
 8382    cx: &mut App,
 8383) -> Task<Result<()>> {
 8384    let windows = cx.windows();
 8385    cx.spawn(async move |cx| {
 8386        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8387            window_handle
 8388                .downcast::<Workspace>()
 8389                .and_then(|window_handle| {
 8390                    window_handle
 8391                        .update(cx, |workspace, _window, cx| {
 8392                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8393                                Some(window_handle)
 8394                            } else {
 8395                                None
 8396                            }
 8397                        })
 8398                        .unwrap_or(None)
 8399                })
 8400        });
 8401
 8402        let workspace = if let Some(existing_workspace) = existing_workspace {
 8403            existing_workspace
 8404        } else {
 8405            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8406            let room = active_call
 8407                .read_with(cx, |call, _| call.room().cloned())?
 8408                .context("not in a call")?;
 8409            let project = room
 8410                .update(cx, |room, cx| {
 8411                    room.join_project(
 8412                        project_id,
 8413                        app_state.languages.clone(),
 8414                        app_state.fs.clone(),
 8415                        cx,
 8416                    )
 8417                })?
 8418                .await?;
 8419
 8420            let window_bounds_override = window_bounds_env_override();
 8421            cx.update(|cx| {
 8422                let mut options = (app_state.build_window_options)(None, cx);
 8423                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8424                cx.open_window(options, |window, cx| {
 8425                    cx.new(|cx| {
 8426                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8427                    })
 8428                })
 8429            })??
 8430        };
 8431
 8432        workspace.update(cx, |workspace, window, cx| {
 8433            cx.activate(true);
 8434            window.activate_window();
 8435
 8436            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8437                let follow_peer_id = room
 8438                    .read(cx)
 8439                    .remote_participants()
 8440                    .iter()
 8441                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8442                    .map(|(_, p)| p.peer_id)
 8443                    .or_else(|| {
 8444                        // If we couldn't follow the given user, follow the host instead.
 8445                        let collaborator = workspace
 8446                            .project()
 8447                            .read(cx)
 8448                            .collaborators()
 8449                            .values()
 8450                            .find(|collaborator| collaborator.is_host)?;
 8451                        Some(collaborator.peer_id)
 8452                    });
 8453
 8454                if let Some(follow_peer_id) = follow_peer_id {
 8455                    workspace.follow(follow_peer_id, window, cx);
 8456                }
 8457            }
 8458        })?;
 8459
 8460        anyhow::Ok(())
 8461    })
 8462}
 8463
 8464pub fn reload(cx: &mut App) {
 8465    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8466    let mut workspace_windows = cx
 8467        .windows()
 8468        .into_iter()
 8469        .filter_map(|window| window.downcast::<Workspace>())
 8470        .collect::<Vec<_>>();
 8471
 8472    // If multiple windows have unsaved changes, and need a save prompt,
 8473    // prompt in the active window before switching to a different window.
 8474    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8475
 8476    let mut prompt = None;
 8477    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8478        prompt = window
 8479            .update(cx, |_, window, cx| {
 8480                window.prompt(
 8481                    PromptLevel::Info,
 8482                    "Are you sure you want to restart?",
 8483                    None,
 8484                    &["Restart", "Cancel"],
 8485                    cx,
 8486                )
 8487            })
 8488            .ok();
 8489    }
 8490
 8491    cx.spawn(async move |cx| {
 8492        if let Some(prompt) = prompt {
 8493            let answer = prompt.await?;
 8494            if answer != 0 {
 8495                return Ok(());
 8496            }
 8497        }
 8498
 8499        // If the user cancels any save prompt, then keep the app open.
 8500        for window in workspace_windows {
 8501            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8502                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8503            }) && !should_close.await?
 8504            {
 8505                return Ok(());
 8506            }
 8507        }
 8508        cx.update(|cx| cx.restart())
 8509    })
 8510    .detach_and_log_err(cx);
 8511}
 8512
 8513fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8514    let mut parts = value.split(',');
 8515    let x: usize = parts.next()?.parse().ok()?;
 8516    let y: usize = parts.next()?.parse().ok()?;
 8517    Some(point(px(x as f32), px(y as f32)))
 8518}
 8519
 8520fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8521    let mut parts = value.split(',');
 8522    let width: usize = parts.next()?.parse().ok()?;
 8523    let height: usize = parts.next()?.parse().ok()?;
 8524    Some(size(px(width as f32), px(height as f32)))
 8525}
 8526
 8527/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8528pub fn client_side_decorations(
 8529    element: impl IntoElement,
 8530    window: &mut Window,
 8531    cx: &mut App,
 8532) -> Stateful<Div> {
 8533    const BORDER_SIZE: Pixels = px(1.0);
 8534    let decorations = window.window_decorations();
 8535
 8536    match decorations {
 8537        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8538        Decorations::Server => window.set_client_inset(px(0.0)),
 8539    }
 8540
 8541    struct GlobalResizeEdge(ResizeEdge);
 8542    impl Global for GlobalResizeEdge {}
 8543
 8544    div()
 8545        .id("window-backdrop")
 8546        .bg(transparent_black())
 8547        .map(|div| match decorations {
 8548            Decorations::Server => div,
 8549            Decorations::Client { tiling, .. } => div
 8550                .when(!(tiling.top || tiling.right), |div| {
 8551                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8552                })
 8553                .when(!(tiling.top || tiling.left), |div| {
 8554                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8555                })
 8556                .when(!(tiling.bottom || tiling.right), |div| {
 8557                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8558                })
 8559                .when(!(tiling.bottom || tiling.left), |div| {
 8560                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8561                })
 8562                .when(!tiling.top, |div| {
 8563                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8564                })
 8565                .when(!tiling.bottom, |div| {
 8566                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8567                })
 8568                .when(!tiling.left, |div| {
 8569                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8570                })
 8571                .when(!tiling.right, |div| {
 8572                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8573                })
 8574                .on_mouse_move(move |e, window, cx| {
 8575                    let size = window.window_bounds().get_bounds().size;
 8576                    let pos = e.position;
 8577
 8578                    let new_edge =
 8579                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8580
 8581                    let edge = cx.try_global::<GlobalResizeEdge>();
 8582                    if new_edge != edge.map(|edge| edge.0) {
 8583                        window
 8584                            .window_handle()
 8585                            .update(cx, |workspace, _, cx| {
 8586                                cx.notify(workspace.entity_id());
 8587                            })
 8588                            .ok();
 8589                    }
 8590                })
 8591                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8592                    let size = window.window_bounds().get_bounds().size;
 8593                    let pos = e.position;
 8594
 8595                    let edge = match resize_edge(
 8596                        pos,
 8597                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8598                        size,
 8599                        tiling,
 8600                    ) {
 8601                        Some(value) => value,
 8602                        None => return,
 8603                    };
 8604
 8605                    window.start_window_resize(edge);
 8606                }),
 8607        })
 8608        .size_full()
 8609        .child(
 8610            div()
 8611                .cursor(CursorStyle::Arrow)
 8612                .map(|div| match decorations {
 8613                    Decorations::Server => div,
 8614                    Decorations::Client { tiling } => div
 8615                        .border_color(cx.theme().colors().border)
 8616                        .when(!(tiling.top || tiling.right), |div| {
 8617                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8618                        })
 8619                        .when(!(tiling.top || tiling.left), |div| {
 8620                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8621                        })
 8622                        .when(!(tiling.bottom || tiling.right), |div| {
 8623                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8624                        })
 8625                        .when(!(tiling.bottom || tiling.left), |div| {
 8626                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8627                        })
 8628                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8629                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8630                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8631                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8632                        .when(!tiling.is_tiled(), |div| {
 8633                            div.shadow(vec![gpui::BoxShadow {
 8634                                color: Hsla {
 8635                                    h: 0.,
 8636                                    s: 0.,
 8637                                    l: 0.,
 8638                                    a: 0.4,
 8639                                },
 8640                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8641                                spread_radius: px(0.),
 8642                                offset: point(px(0.0), px(0.0)),
 8643                            }])
 8644                        }),
 8645                })
 8646                .on_mouse_move(|_e, _, cx| {
 8647                    cx.stop_propagation();
 8648                })
 8649                .size_full()
 8650                .child(element),
 8651        )
 8652        .map(|div| match decorations {
 8653            Decorations::Server => div,
 8654            Decorations::Client { tiling, .. } => div.child(
 8655                canvas(
 8656                    |_bounds, window, _| {
 8657                        window.insert_hitbox(
 8658                            Bounds::new(
 8659                                point(px(0.0), px(0.0)),
 8660                                window.window_bounds().get_bounds().size,
 8661                            ),
 8662                            HitboxBehavior::Normal,
 8663                        )
 8664                    },
 8665                    move |_bounds, hitbox, window, cx| {
 8666                        let mouse = window.mouse_position();
 8667                        let size = window.window_bounds().get_bounds().size;
 8668                        let Some(edge) =
 8669                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8670                        else {
 8671                            return;
 8672                        };
 8673                        cx.set_global(GlobalResizeEdge(edge));
 8674                        window.set_cursor_style(
 8675                            match edge {
 8676                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8677                                ResizeEdge::Left | ResizeEdge::Right => {
 8678                                    CursorStyle::ResizeLeftRight
 8679                                }
 8680                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8681                                    CursorStyle::ResizeUpLeftDownRight
 8682                                }
 8683                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8684                                    CursorStyle::ResizeUpRightDownLeft
 8685                                }
 8686                            },
 8687                            &hitbox,
 8688                        );
 8689                    },
 8690                )
 8691                .size_full()
 8692                .absolute(),
 8693            ),
 8694        })
 8695}
 8696
 8697fn resize_edge(
 8698    pos: Point<Pixels>,
 8699    shadow_size: Pixels,
 8700    window_size: Size<Pixels>,
 8701    tiling: Tiling,
 8702) -> Option<ResizeEdge> {
 8703    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8704    if bounds.contains(&pos) {
 8705        return None;
 8706    }
 8707
 8708    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8709    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8710    if !tiling.top && top_left_bounds.contains(&pos) {
 8711        return Some(ResizeEdge::TopLeft);
 8712    }
 8713
 8714    let top_right_bounds = Bounds::new(
 8715        Point::new(window_size.width - corner_size.width, px(0.)),
 8716        corner_size,
 8717    );
 8718    if !tiling.top && top_right_bounds.contains(&pos) {
 8719        return Some(ResizeEdge::TopRight);
 8720    }
 8721
 8722    let bottom_left_bounds = Bounds::new(
 8723        Point::new(px(0.), window_size.height - corner_size.height),
 8724        corner_size,
 8725    );
 8726    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8727        return Some(ResizeEdge::BottomLeft);
 8728    }
 8729
 8730    let bottom_right_bounds = Bounds::new(
 8731        Point::new(
 8732            window_size.width - corner_size.width,
 8733            window_size.height - corner_size.height,
 8734        ),
 8735        corner_size,
 8736    );
 8737    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8738        return Some(ResizeEdge::BottomRight);
 8739    }
 8740
 8741    if !tiling.top && pos.y < shadow_size {
 8742        Some(ResizeEdge::Top)
 8743    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8744        Some(ResizeEdge::Bottom)
 8745    } else if !tiling.left && pos.x < shadow_size {
 8746        Some(ResizeEdge::Left)
 8747    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8748        Some(ResizeEdge::Right)
 8749    } else {
 8750        None
 8751    }
 8752}
 8753
 8754fn join_pane_into_active(
 8755    active_pane: &Entity<Pane>,
 8756    pane: &Entity<Pane>,
 8757    window: &mut Window,
 8758    cx: &mut App,
 8759) {
 8760    if pane == active_pane {
 8761    } else if pane.read(cx).items_len() == 0 {
 8762        pane.update(cx, |_, cx| {
 8763            cx.emit(pane::Event::Remove {
 8764                focus_on_pane: None,
 8765            });
 8766        })
 8767    } else {
 8768        move_all_items(pane, active_pane, window, cx);
 8769    }
 8770}
 8771
 8772fn move_all_items(
 8773    from_pane: &Entity<Pane>,
 8774    to_pane: &Entity<Pane>,
 8775    window: &mut Window,
 8776    cx: &mut App,
 8777) {
 8778    let destination_is_different = from_pane != to_pane;
 8779    let mut moved_items = 0;
 8780    for (item_ix, item_handle) in from_pane
 8781        .read(cx)
 8782        .items()
 8783        .enumerate()
 8784        .map(|(ix, item)| (ix, item.clone()))
 8785        .collect::<Vec<_>>()
 8786    {
 8787        let ix = item_ix - moved_items;
 8788        if destination_is_different {
 8789            // Close item from previous pane
 8790            from_pane.update(cx, |source, cx| {
 8791                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8792            });
 8793            moved_items += 1;
 8794        }
 8795
 8796        // This automatically removes duplicate items in the pane
 8797        to_pane.update(cx, |destination, cx| {
 8798            destination.add_item(item_handle, true, true, None, window, cx);
 8799            window.focus(&destination.focus_handle(cx), cx)
 8800        });
 8801    }
 8802}
 8803
 8804pub fn move_item(
 8805    source: &Entity<Pane>,
 8806    destination: &Entity<Pane>,
 8807    item_id_to_move: EntityId,
 8808    destination_index: usize,
 8809    activate: bool,
 8810    window: &mut Window,
 8811    cx: &mut App,
 8812) {
 8813    let Some((item_ix, item_handle)) = source
 8814        .read(cx)
 8815        .items()
 8816        .enumerate()
 8817        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8818        .map(|(ix, item)| (ix, item.clone()))
 8819    else {
 8820        // Tab was closed during drag
 8821        return;
 8822    };
 8823
 8824    if source != destination {
 8825        // Close item from previous pane
 8826        source.update(cx, |source, cx| {
 8827            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8828        });
 8829    }
 8830
 8831    // This automatically removes duplicate items in the pane
 8832    destination.update(cx, |destination, cx| {
 8833        destination.add_item_inner(
 8834            item_handle,
 8835            activate,
 8836            activate,
 8837            activate,
 8838            Some(destination_index),
 8839            window,
 8840            cx,
 8841        );
 8842        if activate {
 8843            window.focus(&destination.focus_handle(cx), cx)
 8844        }
 8845    });
 8846}
 8847
 8848pub fn move_active_item(
 8849    source: &Entity<Pane>,
 8850    destination: &Entity<Pane>,
 8851    focus_destination: bool,
 8852    close_if_empty: bool,
 8853    window: &mut Window,
 8854    cx: &mut App,
 8855) {
 8856    if source == destination {
 8857        return;
 8858    }
 8859    let Some(active_item) = source.read(cx).active_item() else {
 8860        return;
 8861    };
 8862    source.update(cx, |source_pane, cx| {
 8863        let item_id = active_item.item_id();
 8864        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8865        destination.update(cx, |target_pane, cx| {
 8866            target_pane.add_item(
 8867                active_item,
 8868                focus_destination,
 8869                focus_destination,
 8870                Some(target_pane.items_len()),
 8871                window,
 8872                cx,
 8873            );
 8874        });
 8875    });
 8876}
 8877
 8878pub fn clone_active_item(
 8879    workspace_id: Option<WorkspaceId>,
 8880    source: &Entity<Pane>,
 8881    destination: &Entity<Pane>,
 8882    focus_destination: bool,
 8883    window: &mut Window,
 8884    cx: &mut App,
 8885) {
 8886    if source == destination {
 8887        return;
 8888    }
 8889    let Some(active_item) = source.read(cx).active_item() else {
 8890        return;
 8891    };
 8892    if !active_item.can_split(cx) {
 8893        return;
 8894    }
 8895    let destination = destination.downgrade();
 8896    let task = active_item.clone_on_split(workspace_id, window, cx);
 8897    window
 8898        .spawn(cx, async move |cx| {
 8899            let Some(clone) = task.await else {
 8900                return;
 8901            };
 8902            destination
 8903                .update_in(cx, |target_pane, window, cx| {
 8904                    target_pane.add_item(
 8905                        clone,
 8906                        focus_destination,
 8907                        focus_destination,
 8908                        Some(target_pane.items_len()),
 8909                        window,
 8910                        cx,
 8911                    );
 8912                })
 8913                .log_err();
 8914        })
 8915        .detach();
 8916}
 8917
 8918#[derive(Debug)]
 8919pub struct WorkspacePosition {
 8920    pub window_bounds: Option<WindowBounds>,
 8921    pub display: Option<Uuid>,
 8922    pub centered_layout: bool,
 8923}
 8924
 8925pub fn remote_workspace_position_from_db(
 8926    connection_options: RemoteConnectionOptions,
 8927    paths_to_open: &[PathBuf],
 8928    cx: &App,
 8929) -> Task<Result<WorkspacePosition>> {
 8930    let paths = paths_to_open.to_vec();
 8931
 8932    cx.background_spawn(async move {
 8933        let remote_connection_id = persistence::DB
 8934            .get_or_create_remote_connection(connection_options)
 8935            .await
 8936            .context("fetching serialized ssh project")?;
 8937        let serialized_workspace =
 8938            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8939
 8940        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8941            (Some(WindowBounds::Windowed(bounds)), None)
 8942        } else {
 8943            let restorable_bounds = serialized_workspace
 8944                .as_ref()
 8945                .and_then(|workspace| {
 8946                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8947                })
 8948                .or_else(|| persistence::read_default_window_bounds());
 8949
 8950            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8951                (Some(serialized_bounds), Some(serialized_display))
 8952            } else {
 8953                (None, None)
 8954            }
 8955        };
 8956
 8957        let centered_layout = serialized_workspace
 8958            .as_ref()
 8959            .map(|w| w.centered_layout)
 8960            .unwrap_or(false);
 8961
 8962        Ok(WorkspacePosition {
 8963            window_bounds,
 8964            display,
 8965            centered_layout,
 8966        })
 8967    })
 8968}
 8969
 8970pub fn with_active_or_new_workspace(
 8971    cx: &mut App,
 8972    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8973) {
 8974    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8975        Some(workspace) => {
 8976            cx.defer(move |cx| {
 8977                workspace
 8978                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8979                    .log_err();
 8980            });
 8981        }
 8982        None => {
 8983            let app_state = AppState::global(cx);
 8984            if let Some(app_state) = app_state.upgrade() {
 8985                open_new(
 8986                    OpenOptions::default(),
 8987                    app_state,
 8988                    cx,
 8989                    move |workspace, window, cx| f(workspace, window, cx),
 8990                )
 8991                .detach_and_log_err(cx);
 8992            }
 8993        }
 8994    }
 8995}
 8996
 8997#[cfg(test)]
 8998mod tests {
 8999    use std::{cell::RefCell, rc::Rc};
 9000
 9001    use super::*;
 9002    use crate::{
 9003        dock::{PanelEvent, test::TestPanel},
 9004        item::{
 9005            ItemBufferKind, ItemEvent,
 9006            test::{TestItem, TestProjectItem},
 9007        },
 9008    };
 9009    use fs::FakeFs;
 9010    use gpui::{
 9011        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9012        UpdateGlobal, VisualTestContext, px,
 9013    };
 9014    use project::{Project, ProjectEntryId};
 9015    use serde_json::json;
 9016    use settings::SettingsStore;
 9017    use util::rel_path::rel_path;
 9018
 9019    #[gpui::test]
 9020    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9021        init_test(cx);
 9022
 9023        let fs = FakeFs::new(cx.executor());
 9024        let project = Project::test(fs, [], cx).await;
 9025        let (workspace, cx) =
 9026            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9027
 9028        // Adding an item with no ambiguity renders the tab without detail.
 9029        let item1 = cx.new(|cx| {
 9030            let mut item = TestItem::new(cx);
 9031            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9032            item
 9033        });
 9034        workspace.update_in(cx, |workspace, window, cx| {
 9035            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9036        });
 9037        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9038
 9039        // Adding an item that creates ambiguity increases the level of detail on
 9040        // both tabs.
 9041        let item2 = cx.new_window_entity(|_window, cx| {
 9042            let mut item = TestItem::new(cx);
 9043            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9044            item
 9045        });
 9046        workspace.update_in(cx, |workspace, window, cx| {
 9047            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9048        });
 9049        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9050        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9051
 9052        // Adding an item that creates ambiguity increases the level of detail only
 9053        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9054        // we stop at the highest detail available.
 9055        let item3 = cx.new(|cx| {
 9056            let mut item = TestItem::new(cx);
 9057            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9058            item
 9059        });
 9060        workspace.update_in(cx, |workspace, window, cx| {
 9061            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9062        });
 9063        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9064        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9065        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9066    }
 9067
 9068    #[gpui::test]
 9069    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9070        init_test(cx);
 9071
 9072        let fs = FakeFs::new(cx.executor());
 9073        fs.insert_tree(
 9074            "/root1",
 9075            json!({
 9076                "one.txt": "",
 9077                "two.txt": "",
 9078            }),
 9079        )
 9080        .await;
 9081        fs.insert_tree(
 9082            "/root2",
 9083            json!({
 9084                "three.txt": "",
 9085            }),
 9086        )
 9087        .await;
 9088
 9089        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9090        let (workspace, cx) =
 9091            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9092        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9093        let worktree_id = project.update(cx, |project, cx| {
 9094            project.worktrees(cx).next().unwrap().read(cx).id()
 9095        });
 9096
 9097        let item1 = cx.new(|cx| {
 9098            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9099        });
 9100        let item2 = cx.new(|cx| {
 9101            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9102        });
 9103
 9104        // Add an item to an empty pane
 9105        workspace.update_in(cx, |workspace, window, cx| {
 9106            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9107        });
 9108        project.update(cx, |project, cx| {
 9109            assert_eq!(
 9110                project.active_entry(),
 9111                project
 9112                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9113                    .map(|e| e.id)
 9114            );
 9115        });
 9116        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9117
 9118        // Add a second item to a non-empty pane
 9119        workspace.update_in(cx, |workspace, window, cx| {
 9120            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9121        });
 9122        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9123        project.update(cx, |project, cx| {
 9124            assert_eq!(
 9125                project.active_entry(),
 9126                project
 9127                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9128                    .map(|e| e.id)
 9129            );
 9130        });
 9131
 9132        // Close the active item
 9133        pane.update_in(cx, |pane, window, cx| {
 9134            pane.close_active_item(&Default::default(), window, cx)
 9135        })
 9136        .await
 9137        .unwrap();
 9138        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9139        project.update(cx, |project, cx| {
 9140            assert_eq!(
 9141                project.active_entry(),
 9142                project
 9143                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9144                    .map(|e| e.id)
 9145            );
 9146        });
 9147
 9148        // Add a project folder
 9149        project
 9150            .update(cx, |project, cx| {
 9151                project.find_or_create_worktree("root2", true, cx)
 9152            })
 9153            .await
 9154            .unwrap();
 9155        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9156
 9157        // Remove a project folder
 9158        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9159        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9160    }
 9161
 9162    #[gpui::test]
 9163    async fn test_close_window(cx: &mut TestAppContext) {
 9164        init_test(cx);
 9165
 9166        let fs = FakeFs::new(cx.executor());
 9167        fs.insert_tree("/root", json!({ "one": "" })).await;
 9168
 9169        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9170        let (workspace, cx) =
 9171            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9172
 9173        // When there are no dirty items, there's nothing to do.
 9174        let item1 = cx.new(TestItem::new);
 9175        workspace.update_in(cx, |w, window, cx| {
 9176            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9177        });
 9178        let task = workspace.update_in(cx, |w, window, cx| {
 9179            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9180        });
 9181        assert!(task.await.unwrap());
 9182
 9183        // When there are dirty untitled items, prompt to save each one. If the user
 9184        // cancels any prompt, then abort.
 9185        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9186        let item3 = cx.new(|cx| {
 9187            TestItem::new(cx)
 9188                .with_dirty(true)
 9189                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9190        });
 9191        workspace.update_in(cx, |w, window, cx| {
 9192            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9193            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9194        });
 9195        let task = workspace.update_in(cx, |w, window, cx| {
 9196            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9197        });
 9198        cx.executor().run_until_parked();
 9199        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9200        cx.executor().run_until_parked();
 9201        assert!(!cx.has_pending_prompt());
 9202        assert!(!task.await.unwrap());
 9203    }
 9204
 9205    #[gpui::test]
 9206    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9207        init_test(cx);
 9208
 9209        // Register TestItem as a serializable item
 9210        cx.update(|cx| {
 9211            register_serializable_item::<TestItem>(cx);
 9212        });
 9213
 9214        let fs = FakeFs::new(cx.executor());
 9215        fs.insert_tree("/root", json!({ "one": "" })).await;
 9216
 9217        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9218        let (workspace, cx) =
 9219            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9220
 9221        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9222        let item1 = cx.new(|cx| {
 9223            TestItem::new(cx)
 9224                .with_dirty(true)
 9225                .with_serialize(|| Some(Task::ready(Ok(()))))
 9226        });
 9227        let item2 = cx.new(|cx| {
 9228            TestItem::new(cx)
 9229                .with_dirty(true)
 9230                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9231                .with_serialize(|| Some(Task::ready(Ok(()))))
 9232        });
 9233        workspace.update_in(cx, |w, window, cx| {
 9234            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9235            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9236        });
 9237        let task = workspace.update_in(cx, |w, window, cx| {
 9238            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9239        });
 9240        assert!(task.await.unwrap());
 9241    }
 9242
 9243    #[gpui::test]
 9244    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9245        init_test(cx);
 9246
 9247        let fs = FakeFs::new(cx.executor());
 9248
 9249        let project = Project::test(fs, None, cx).await;
 9250        let (workspace, cx) =
 9251            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9252
 9253        let item1 = cx.new(|cx| {
 9254            TestItem::new(cx)
 9255                .with_dirty(true)
 9256                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9257        });
 9258        let item2 = cx.new(|cx| {
 9259            TestItem::new(cx)
 9260                .with_dirty(true)
 9261                .with_conflict(true)
 9262                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9263        });
 9264        let item3 = cx.new(|cx| {
 9265            TestItem::new(cx)
 9266                .with_dirty(true)
 9267                .with_conflict(true)
 9268                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9269        });
 9270        let item4 = cx.new(|cx| {
 9271            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9272                let project_item = TestProjectItem::new_untitled(cx);
 9273                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9274                project_item
 9275            }])
 9276        });
 9277        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9278            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9279            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9280            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9281            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9282            workspace.active_pane().clone()
 9283        });
 9284
 9285        let close_items = pane.update_in(cx, |pane, window, cx| {
 9286            pane.activate_item(1, true, true, window, cx);
 9287            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9288            let item1_id = item1.item_id();
 9289            let item3_id = item3.item_id();
 9290            let item4_id = item4.item_id();
 9291            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9292                [item1_id, item3_id, item4_id].contains(&id)
 9293            })
 9294        });
 9295        cx.executor().run_until_parked();
 9296
 9297        assert!(cx.has_pending_prompt());
 9298        cx.simulate_prompt_answer("Save all");
 9299
 9300        cx.executor().run_until_parked();
 9301
 9302        // Item 1 is saved. There's a prompt to save item 3.
 9303        pane.update(cx, |pane, cx| {
 9304            assert_eq!(item1.read(cx).save_count, 1);
 9305            assert_eq!(item1.read(cx).save_as_count, 0);
 9306            assert_eq!(item1.read(cx).reload_count, 0);
 9307            assert_eq!(pane.items_len(), 3);
 9308            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9309        });
 9310        assert!(cx.has_pending_prompt());
 9311
 9312        // Cancel saving item 3.
 9313        cx.simulate_prompt_answer("Discard");
 9314        cx.executor().run_until_parked();
 9315
 9316        // Item 3 is reloaded. There's a prompt to save item 4.
 9317        pane.update(cx, |pane, cx| {
 9318            assert_eq!(item3.read(cx).save_count, 0);
 9319            assert_eq!(item3.read(cx).save_as_count, 0);
 9320            assert_eq!(item3.read(cx).reload_count, 1);
 9321            assert_eq!(pane.items_len(), 2);
 9322            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9323        });
 9324
 9325        // There's a prompt for a path for item 4.
 9326        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9327        close_items.await.unwrap();
 9328
 9329        // The requested items are closed.
 9330        pane.update(cx, |pane, cx| {
 9331            assert_eq!(item4.read(cx).save_count, 0);
 9332            assert_eq!(item4.read(cx).save_as_count, 1);
 9333            assert_eq!(item4.read(cx).reload_count, 0);
 9334            assert_eq!(pane.items_len(), 1);
 9335            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9336        });
 9337    }
 9338
 9339    #[gpui::test]
 9340    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9341        init_test(cx);
 9342
 9343        let fs = FakeFs::new(cx.executor());
 9344        let project = Project::test(fs, [], cx).await;
 9345        let (workspace, cx) =
 9346            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9347
 9348        // Create several workspace items with single project entries, and two
 9349        // workspace items with multiple project entries.
 9350        let single_entry_items = (0..=4)
 9351            .map(|project_entry_id| {
 9352                cx.new(|cx| {
 9353                    TestItem::new(cx)
 9354                        .with_dirty(true)
 9355                        .with_project_items(&[dirty_project_item(
 9356                            project_entry_id,
 9357                            &format!("{project_entry_id}.txt"),
 9358                            cx,
 9359                        )])
 9360                })
 9361            })
 9362            .collect::<Vec<_>>();
 9363        let item_2_3 = cx.new(|cx| {
 9364            TestItem::new(cx)
 9365                .with_dirty(true)
 9366                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9367                .with_project_items(&[
 9368                    single_entry_items[2].read(cx).project_items[0].clone(),
 9369                    single_entry_items[3].read(cx).project_items[0].clone(),
 9370                ])
 9371        });
 9372        let item_3_4 = cx.new(|cx| {
 9373            TestItem::new(cx)
 9374                .with_dirty(true)
 9375                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9376                .with_project_items(&[
 9377                    single_entry_items[3].read(cx).project_items[0].clone(),
 9378                    single_entry_items[4].read(cx).project_items[0].clone(),
 9379                ])
 9380        });
 9381
 9382        // Create two panes that contain the following project entries:
 9383        //   left pane:
 9384        //     multi-entry items:   (2, 3)
 9385        //     single-entry items:  0, 2, 3, 4
 9386        //   right pane:
 9387        //     single-entry items:  4, 1
 9388        //     multi-entry items:   (3, 4)
 9389        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9390            let left_pane = workspace.active_pane().clone();
 9391            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9392            workspace.add_item_to_active_pane(
 9393                single_entry_items[0].boxed_clone(),
 9394                None,
 9395                true,
 9396                window,
 9397                cx,
 9398            );
 9399            workspace.add_item_to_active_pane(
 9400                single_entry_items[2].boxed_clone(),
 9401                None,
 9402                true,
 9403                window,
 9404                cx,
 9405            );
 9406            workspace.add_item_to_active_pane(
 9407                single_entry_items[3].boxed_clone(),
 9408                None,
 9409                true,
 9410                window,
 9411                cx,
 9412            );
 9413            workspace.add_item_to_active_pane(
 9414                single_entry_items[4].boxed_clone(),
 9415                None,
 9416                true,
 9417                window,
 9418                cx,
 9419            );
 9420
 9421            let right_pane =
 9422                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9423
 9424            let boxed_clone = single_entry_items[1].boxed_clone();
 9425            let right_pane = window.spawn(cx, async move |cx| {
 9426                right_pane.await.inspect(|right_pane| {
 9427                    right_pane
 9428                        .update_in(cx, |pane, window, cx| {
 9429                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9430                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9431                        })
 9432                        .unwrap();
 9433                })
 9434            });
 9435
 9436            (left_pane, right_pane)
 9437        });
 9438        let right_pane = right_pane.await.unwrap();
 9439        cx.focus(&right_pane);
 9440
 9441        let close = right_pane.update_in(cx, |pane, window, cx| {
 9442            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9443                .unwrap()
 9444        });
 9445        cx.executor().run_until_parked();
 9446
 9447        let msg = cx.pending_prompt().unwrap().0;
 9448        assert!(msg.contains("1.txt"));
 9449        assert!(!msg.contains("2.txt"));
 9450        assert!(!msg.contains("3.txt"));
 9451        assert!(!msg.contains("4.txt"));
 9452
 9453        // With best-effort close, cancelling item 1 keeps it open but items 4
 9454        // and (3,4) still close since their entries exist in left pane.
 9455        cx.simulate_prompt_answer("Cancel");
 9456        close.await;
 9457
 9458        right_pane.read_with(cx, |pane, _| {
 9459            assert_eq!(pane.items_len(), 1);
 9460        });
 9461
 9462        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9463        left_pane
 9464            .update_in(cx, |left_pane, window, cx| {
 9465                left_pane.close_item_by_id(
 9466                    single_entry_items[3].entity_id(),
 9467                    SaveIntent::Skip,
 9468                    window,
 9469                    cx,
 9470                )
 9471            })
 9472            .await
 9473            .unwrap();
 9474
 9475        let close = left_pane.update_in(cx, |pane, window, cx| {
 9476            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9477                .unwrap()
 9478        });
 9479        cx.executor().run_until_parked();
 9480
 9481        let details = cx.pending_prompt().unwrap().1;
 9482        assert!(details.contains("0.txt"));
 9483        assert!(details.contains("3.txt"));
 9484        assert!(details.contains("4.txt"));
 9485        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9486        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9487        // assert!(!details.contains("2.txt"));
 9488
 9489        cx.simulate_prompt_answer("Save all");
 9490        cx.executor().run_until_parked();
 9491        close.await;
 9492
 9493        left_pane.read_with(cx, |pane, _| {
 9494            assert_eq!(pane.items_len(), 0);
 9495        });
 9496    }
 9497
 9498    #[gpui::test]
 9499    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9500        init_test(cx);
 9501
 9502        let fs = FakeFs::new(cx.executor());
 9503        let project = Project::test(fs, [], cx).await;
 9504        let (workspace, cx) =
 9505            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9506        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9507
 9508        let item = cx.new(|cx| {
 9509            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9510        });
 9511        let item_id = item.entity_id();
 9512        workspace.update_in(cx, |workspace, window, cx| {
 9513            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9514        });
 9515
 9516        // Autosave on window change.
 9517        item.update(cx, |item, cx| {
 9518            SettingsStore::update_global(cx, |settings, cx| {
 9519                settings.update_user_settings(cx, |settings| {
 9520                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9521                })
 9522            });
 9523            item.is_dirty = true;
 9524        });
 9525
 9526        // Deactivating the window saves the file.
 9527        cx.deactivate_window();
 9528        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9529
 9530        // Re-activating the window doesn't save the file.
 9531        cx.update(|window, _| window.activate_window());
 9532        cx.executor().run_until_parked();
 9533        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9534
 9535        // Autosave on focus change.
 9536        item.update_in(cx, |item, window, cx| {
 9537            cx.focus_self(window);
 9538            SettingsStore::update_global(cx, |settings, cx| {
 9539                settings.update_user_settings(cx, |settings| {
 9540                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9541                })
 9542            });
 9543            item.is_dirty = true;
 9544        });
 9545        // Blurring the item saves the file.
 9546        item.update_in(cx, |_, window, _| window.blur());
 9547        cx.executor().run_until_parked();
 9548        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9549
 9550        // Deactivating the window still saves the file.
 9551        item.update_in(cx, |item, window, cx| {
 9552            cx.focus_self(window);
 9553            item.is_dirty = true;
 9554        });
 9555        cx.deactivate_window();
 9556        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9557
 9558        // Autosave after delay.
 9559        item.update(cx, |item, cx| {
 9560            SettingsStore::update_global(cx, |settings, cx| {
 9561                settings.update_user_settings(cx, |settings| {
 9562                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9563                        milliseconds: 500.into(),
 9564                    });
 9565                })
 9566            });
 9567            item.is_dirty = true;
 9568            cx.emit(ItemEvent::Edit);
 9569        });
 9570
 9571        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9572        cx.executor().advance_clock(Duration::from_millis(250));
 9573        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9574
 9575        // After delay expires, the file is saved.
 9576        cx.executor().advance_clock(Duration::from_millis(250));
 9577        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9578
 9579        // Autosave after delay, should save earlier than delay if tab is closed
 9580        item.update(cx, |item, cx| {
 9581            item.is_dirty = true;
 9582            cx.emit(ItemEvent::Edit);
 9583        });
 9584        cx.executor().advance_clock(Duration::from_millis(250));
 9585        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9586
 9587        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9588        pane.update_in(cx, |pane, window, cx| {
 9589            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9590        })
 9591        .await
 9592        .unwrap();
 9593        assert!(!cx.has_pending_prompt());
 9594        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9595
 9596        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9597        workspace.update_in(cx, |workspace, window, cx| {
 9598            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9599        });
 9600        item.update_in(cx, |item, _window, cx| {
 9601            item.is_dirty = true;
 9602            for project_item in &mut item.project_items {
 9603                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9604            }
 9605        });
 9606        cx.run_until_parked();
 9607        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9608
 9609        // Autosave on focus change, ensuring closing the tab counts as such.
 9610        item.update(cx, |item, cx| {
 9611            SettingsStore::update_global(cx, |settings, cx| {
 9612                settings.update_user_settings(cx, |settings| {
 9613                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9614                })
 9615            });
 9616            item.is_dirty = true;
 9617            for project_item in &mut item.project_items {
 9618                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9619            }
 9620        });
 9621
 9622        pane.update_in(cx, |pane, window, cx| {
 9623            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9624        })
 9625        .await
 9626        .unwrap();
 9627        assert!(!cx.has_pending_prompt());
 9628        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9629
 9630        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9631        workspace.update_in(cx, |workspace, window, cx| {
 9632            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9633        });
 9634        item.update_in(cx, |item, window, cx| {
 9635            item.project_items[0].update(cx, |item, _| {
 9636                item.entry_id = None;
 9637            });
 9638            item.is_dirty = true;
 9639            window.blur();
 9640        });
 9641        cx.run_until_parked();
 9642        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9643
 9644        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9645        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9646            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9647        });
 9648        cx.run_until_parked();
 9649        assert!(cx.has_pending_prompt());
 9650        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9651    }
 9652
 9653    #[gpui::test]
 9654    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9655        init_test(cx);
 9656
 9657        let fs = FakeFs::new(cx.executor());
 9658
 9659        let project = Project::test(fs, [], cx).await;
 9660        let (workspace, cx) =
 9661            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9662
 9663        let item = cx.new(|cx| {
 9664            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9665        });
 9666        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9667        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9668        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9669
 9670        workspace.update_in(cx, |workspace, window, cx| {
 9671            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9672            let toolbar_notification_count = toolbar_notify_count.clone();
 9673            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9674                *toolbar_notification_count.borrow_mut() += 1
 9675            })
 9676            .detach();
 9677        });
 9678
 9679        pane.read_with(cx, |pane, _| {
 9680            assert!(!pane.can_navigate_backward());
 9681            assert!(!pane.can_navigate_forward());
 9682        });
 9683
 9684        item.update_in(cx, |item, _, cx| {
 9685            item.set_state("one".to_string(), cx);
 9686        });
 9687
 9688        // Toolbar must be notified to re-render the navigation buttons
 9689        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9690
 9691        pane.read_with(cx, |pane, _| {
 9692            assert!(pane.can_navigate_backward());
 9693            assert!(!pane.can_navigate_forward());
 9694        });
 9695
 9696        workspace
 9697            .update_in(cx, |workspace, window, cx| {
 9698                workspace.go_back(pane.downgrade(), window, cx)
 9699            })
 9700            .await
 9701            .unwrap();
 9702
 9703        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9704        pane.read_with(cx, |pane, _| {
 9705            assert!(!pane.can_navigate_backward());
 9706            assert!(pane.can_navigate_forward());
 9707        });
 9708    }
 9709
 9710    #[gpui::test]
 9711    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9712        init_test(cx);
 9713        let fs = FakeFs::new(cx.executor());
 9714
 9715        let project = Project::test(fs, [], cx).await;
 9716        let (workspace, cx) =
 9717            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9718
 9719        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9720            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9721            workspace.add_panel(panel.clone(), window, cx);
 9722
 9723            workspace
 9724                .right_dock()
 9725                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9726
 9727            panel
 9728        });
 9729
 9730        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9731        pane.update_in(cx, |pane, window, cx| {
 9732            let item = cx.new(TestItem::new);
 9733            pane.add_item(Box::new(item), true, true, None, window, cx);
 9734        });
 9735
 9736        // Transfer focus from center to panel
 9737        workspace.update_in(cx, |workspace, window, cx| {
 9738            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9739        });
 9740
 9741        workspace.update_in(cx, |workspace, window, cx| {
 9742            assert!(workspace.right_dock().read(cx).is_open());
 9743            assert!(!panel.is_zoomed(window, cx));
 9744            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9745        });
 9746
 9747        // Transfer focus from panel to center
 9748        workspace.update_in(cx, |workspace, window, cx| {
 9749            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9750        });
 9751
 9752        workspace.update_in(cx, |workspace, window, cx| {
 9753            assert!(workspace.right_dock().read(cx).is_open());
 9754            assert!(!panel.is_zoomed(window, cx));
 9755            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9756        });
 9757
 9758        // Close the dock
 9759        workspace.update_in(cx, |workspace, window, cx| {
 9760            workspace.toggle_dock(DockPosition::Right, window, cx);
 9761        });
 9762
 9763        workspace.update_in(cx, |workspace, window, cx| {
 9764            assert!(!workspace.right_dock().read(cx).is_open());
 9765            assert!(!panel.is_zoomed(window, cx));
 9766            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9767        });
 9768
 9769        // Open the dock
 9770        workspace.update_in(cx, |workspace, window, cx| {
 9771            workspace.toggle_dock(DockPosition::Right, window, cx);
 9772        });
 9773
 9774        workspace.update_in(cx, |workspace, window, cx| {
 9775            assert!(workspace.right_dock().read(cx).is_open());
 9776            assert!(!panel.is_zoomed(window, cx));
 9777            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9778        });
 9779
 9780        // Focus and zoom panel
 9781        panel.update_in(cx, |panel, window, cx| {
 9782            cx.focus_self(window);
 9783            panel.set_zoomed(true, window, cx)
 9784        });
 9785
 9786        workspace.update_in(cx, |workspace, window, cx| {
 9787            assert!(workspace.right_dock().read(cx).is_open());
 9788            assert!(panel.is_zoomed(window, cx));
 9789            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9790        });
 9791
 9792        // Transfer focus to the center closes the dock
 9793        workspace.update_in(cx, |workspace, window, cx| {
 9794            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9795        });
 9796
 9797        workspace.update_in(cx, |workspace, window, cx| {
 9798            assert!(!workspace.right_dock().read(cx).is_open());
 9799            assert!(panel.is_zoomed(window, cx));
 9800            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9801        });
 9802
 9803        // Transferring focus back to the panel keeps it zoomed
 9804        workspace.update_in(cx, |workspace, window, cx| {
 9805            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9806        });
 9807
 9808        workspace.update_in(cx, |workspace, window, cx| {
 9809            assert!(workspace.right_dock().read(cx).is_open());
 9810            assert!(panel.is_zoomed(window, cx));
 9811            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9812        });
 9813
 9814        // Close the dock while it is zoomed
 9815        workspace.update_in(cx, |workspace, window, cx| {
 9816            workspace.toggle_dock(DockPosition::Right, window, cx)
 9817        });
 9818
 9819        workspace.update_in(cx, |workspace, window, cx| {
 9820            assert!(!workspace.right_dock().read(cx).is_open());
 9821            assert!(panel.is_zoomed(window, cx));
 9822            assert!(workspace.zoomed.is_none());
 9823            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9824        });
 9825
 9826        // Opening the dock, when it's zoomed, retains focus
 9827        workspace.update_in(cx, |workspace, window, cx| {
 9828            workspace.toggle_dock(DockPosition::Right, window, cx)
 9829        });
 9830
 9831        workspace.update_in(cx, |workspace, window, cx| {
 9832            assert!(workspace.right_dock().read(cx).is_open());
 9833            assert!(panel.is_zoomed(window, cx));
 9834            assert!(workspace.zoomed.is_some());
 9835            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9836        });
 9837
 9838        // Unzoom and close the panel, zoom the active pane.
 9839        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9840        workspace.update_in(cx, |workspace, window, cx| {
 9841            workspace.toggle_dock(DockPosition::Right, window, cx)
 9842        });
 9843        pane.update_in(cx, |pane, window, cx| {
 9844            pane.toggle_zoom(&Default::default(), window, cx)
 9845        });
 9846
 9847        // Opening a dock unzooms the pane.
 9848        workspace.update_in(cx, |workspace, window, cx| {
 9849            workspace.toggle_dock(DockPosition::Right, window, cx)
 9850        });
 9851        workspace.update_in(cx, |workspace, window, cx| {
 9852            let pane = pane.read(cx);
 9853            assert!(!pane.is_zoomed());
 9854            assert!(!pane.focus_handle(cx).is_focused(window));
 9855            assert!(workspace.right_dock().read(cx).is_open());
 9856            assert!(workspace.zoomed.is_none());
 9857        });
 9858    }
 9859
 9860    #[gpui::test]
 9861    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9862        init_test(cx);
 9863        let fs = FakeFs::new(cx.executor());
 9864
 9865        let project = Project::test(fs, [], cx).await;
 9866        let (workspace, cx) =
 9867            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9868
 9869        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9870            workspace.active_pane().clone()
 9871        });
 9872
 9873        // Add an item to the pane so it can be zoomed
 9874        workspace.update_in(cx, |workspace, window, cx| {
 9875            let item = cx.new(TestItem::new);
 9876            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9877        });
 9878
 9879        // Initially not zoomed
 9880        workspace.update_in(cx, |workspace, _window, cx| {
 9881            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9882            assert!(
 9883                workspace.zoomed.is_none(),
 9884                "Workspace should track no zoomed pane"
 9885            );
 9886            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9887        });
 9888
 9889        // Zoom In
 9890        pane.update_in(cx, |pane, window, cx| {
 9891            pane.zoom_in(&crate::ZoomIn, window, cx);
 9892        });
 9893
 9894        workspace.update_in(cx, |workspace, window, cx| {
 9895            assert!(
 9896                pane.read(cx).is_zoomed(),
 9897                "Pane should be zoomed after ZoomIn"
 9898            );
 9899            assert!(
 9900                workspace.zoomed.is_some(),
 9901                "Workspace should track the zoomed pane"
 9902            );
 9903            assert!(
 9904                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9905                "ZoomIn should focus the pane"
 9906            );
 9907        });
 9908
 9909        // Zoom In again is a no-op
 9910        pane.update_in(cx, |pane, window, cx| {
 9911            pane.zoom_in(&crate::ZoomIn, window, cx);
 9912        });
 9913
 9914        workspace.update_in(cx, |workspace, window, cx| {
 9915            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9916            assert!(
 9917                workspace.zoomed.is_some(),
 9918                "Workspace still tracks zoomed pane"
 9919            );
 9920            assert!(
 9921                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9922                "Pane remains focused after repeated ZoomIn"
 9923            );
 9924        });
 9925
 9926        // Zoom Out
 9927        pane.update_in(cx, |pane, window, cx| {
 9928            pane.zoom_out(&crate::ZoomOut, window, cx);
 9929        });
 9930
 9931        workspace.update_in(cx, |workspace, _window, cx| {
 9932            assert!(
 9933                !pane.read(cx).is_zoomed(),
 9934                "Pane should unzoom after ZoomOut"
 9935            );
 9936            assert!(
 9937                workspace.zoomed.is_none(),
 9938                "Workspace clears zoom tracking after ZoomOut"
 9939            );
 9940        });
 9941
 9942        // Zoom Out again is a no-op
 9943        pane.update_in(cx, |pane, window, cx| {
 9944            pane.zoom_out(&crate::ZoomOut, window, cx);
 9945        });
 9946
 9947        workspace.update_in(cx, |workspace, _window, cx| {
 9948            assert!(
 9949                !pane.read(cx).is_zoomed(),
 9950                "Second ZoomOut keeps pane unzoomed"
 9951            );
 9952            assert!(
 9953                workspace.zoomed.is_none(),
 9954                "Workspace remains without zoomed pane"
 9955            );
 9956        });
 9957    }
 9958
 9959    #[gpui::test]
 9960    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9961        init_test(cx);
 9962        let fs = FakeFs::new(cx.executor());
 9963
 9964        let project = Project::test(fs, [], cx).await;
 9965        let (workspace, cx) =
 9966            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9967        workspace.update_in(cx, |workspace, window, cx| {
 9968            // Open two docks
 9969            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9970            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9971
 9972            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9973            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9974
 9975            assert!(left_dock.read(cx).is_open());
 9976            assert!(right_dock.read(cx).is_open());
 9977        });
 9978
 9979        workspace.update_in(cx, |workspace, window, cx| {
 9980            // Toggle all docks - should close both
 9981            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9982
 9983            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9984            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9985            assert!(!left_dock.read(cx).is_open());
 9986            assert!(!right_dock.read(cx).is_open());
 9987        });
 9988
 9989        workspace.update_in(cx, |workspace, window, cx| {
 9990            // Toggle again - should reopen both
 9991            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9992
 9993            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9994            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9995            assert!(left_dock.read(cx).is_open());
 9996            assert!(right_dock.read(cx).is_open());
 9997        });
 9998    }
 9999
10000    #[gpui::test]
10001    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10002        init_test(cx);
10003        let fs = FakeFs::new(cx.executor());
10004
10005        let project = Project::test(fs, [], cx).await;
10006        let (workspace, cx) =
10007            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10008        workspace.update_in(cx, |workspace, window, cx| {
10009            // Open two docks
10010            let left_dock = workspace.dock_at_position(DockPosition::Left);
10011            let right_dock = workspace.dock_at_position(DockPosition::Right);
10012
10013            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10014            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10015
10016            assert!(left_dock.read(cx).is_open());
10017            assert!(right_dock.read(cx).is_open());
10018        });
10019
10020        workspace.update_in(cx, |workspace, window, cx| {
10021            // Close them manually
10022            workspace.toggle_dock(DockPosition::Left, window, cx);
10023            workspace.toggle_dock(DockPosition::Right, window, cx);
10024
10025            let left_dock = workspace.dock_at_position(DockPosition::Left);
10026            let right_dock = workspace.dock_at_position(DockPosition::Right);
10027            assert!(!left_dock.read(cx).is_open());
10028            assert!(!right_dock.read(cx).is_open());
10029        });
10030
10031        workspace.update_in(cx, |workspace, window, cx| {
10032            // Toggle all docks - only last closed (right dock) should reopen
10033            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10034
10035            let left_dock = workspace.dock_at_position(DockPosition::Left);
10036            let right_dock = workspace.dock_at_position(DockPosition::Right);
10037            assert!(!left_dock.read(cx).is_open());
10038            assert!(right_dock.read(cx).is_open());
10039        });
10040    }
10041
10042    #[gpui::test]
10043    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10044        init_test(cx);
10045        let fs = FakeFs::new(cx.executor());
10046        let project = Project::test(fs, [], cx).await;
10047        let (workspace, cx) =
10048            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10049
10050        // Open two docks (left and right) with one panel each
10051        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10052            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10053            workspace.add_panel(left_panel.clone(), window, cx);
10054
10055            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10056            workspace.add_panel(right_panel.clone(), window, cx);
10057
10058            workspace.toggle_dock(DockPosition::Left, window, cx);
10059            workspace.toggle_dock(DockPosition::Right, window, cx);
10060
10061            // Verify initial state
10062            assert!(
10063                workspace.left_dock().read(cx).is_open(),
10064                "Left dock should be open"
10065            );
10066            assert_eq!(
10067                workspace
10068                    .left_dock()
10069                    .read(cx)
10070                    .visible_panel()
10071                    .unwrap()
10072                    .panel_id(),
10073                left_panel.panel_id(),
10074                "Left panel should be visible in left dock"
10075            );
10076            assert!(
10077                workspace.right_dock().read(cx).is_open(),
10078                "Right dock should be open"
10079            );
10080            assert_eq!(
10081                workspace
10082                    .right_dock()
10083                    .read(cx)
10084                    .visible_panel()
10085                    .unwrap()
10086                    .panel_id(),
10087                right_panel.panel_id(),
10088                "Right panel should be visible in right dock"
10089            );
10090            assert!(
10091                !workspace.bottom_dock().read(cx).is_open(),
10092                "Bottom dock should be closed"
10093            );
10094
10095            (left_panel, right_panel)
10096        });
10097
10098        // Focus the left panel and move it to the next position (bottom dock)
10099        workspace.update_in(cx, |workspace, window, cx| {
10100            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10101            assert!(
10102                left_panel.read(cx).focus_handle(cx).is_focused(window),
10103                "Left panel should be focused"
10104            );
10105        });
10106
10107        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10108
10109        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10110        workspace.update(cx, |workspace, cx| {
10111            assert!(
10112                !workspace.left_dock().read(cx).is_open(),
10113                "Left dock should be closed"
10114            );
10115            assert!(
10116                workspace.bottom_dock().read(cx).is_open(),
10117                "Bottom dock should now be open"
10118            );
10119            assert_eq!(
10120                left_panel.read(cx).position,
10121                DockPosition::Bottom,
10122                "Left panel should now be in the bottom dock"
10123            );
10124            assert_eq!(
10125                workspace
10126                    .bottom_dock()
10127                    .read(cx)
10128                    .visible_panel()
10129                    .unwrap()
10130                    .panel_id(),
10131                left_panel.panel_id(),
10132                "Left panel should be the visible panel in the bottom dock"
10133            );
10134        });
10135
10136        // Toggle all docks off
10137        workspace.update_in(cx, |workspace, window, cx| {
10138            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10139            assert!(
10140                !workspace.left_dock().read(cx).is_open(),
10141                "Left dock should be closed"
10142            );
10143            assert!(
10144                !workspace.right_dock().read(cx).is_open(),
10145                "Right dock should be closed"
10146            );
10147            assert!(
10148                !workspace.bottom_dock().read(cx).is_open(),
10149                "Bottom dock should be closed"
10150            );
10151        });
10152
10153        // Toggle all docks back on and verify positions are restored
10154        workspace.update_in(cx, |workspace, window, cx| {
10155            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10156            assert!(
10157                !workspace.left_dock().read(cx).is_open(),
10158                "Left dock should remain closed"
10159            );
10160            assert!(
10161                workspace.right_dock().read(cx).is_open(),
10162                "Right dock should remain open"
10163            );
10164            assert!(
10165                workspace.bottom_dock().read(cx).is_open(),
10166                "Bottom dock should remain open"
10167            );
10168            assert_eq!(
10169                left_panel.read(cx).position,
10170                DockPosition::Bottom,
10171                "Left panel should remain in the bottom dock"
10172            );
10173            assert_eq!(
10174                right_panel.read(cx).position,
10175                DockPosition::Right,
10176                "Right panel should remain in the right dock"
10177            );
10178            assert_eq!(
10179                workspace
10180                    .bottom_dock()
10181                    .read(cx)
10182                    .visible_panel()
10183                    .unwrap()
10184                    .panel_id(),
10185                left_panel.panel_id(),
10186                "Left panel should be the visible panel in the right dock"
10187            );
10188        });
10189    }
10190
10191    #[gpui::test]
10192    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10193        init_test(cx);
10194
10195        let fs = FakeFs::new(cx.executor());
10196
10197        let project = Project::test(fs, None, cx).await;
10198        let (workspace, cx) =
10199            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10200
10201        // Let's arrange the panes like this:
10202        //
10203        // +-----------------------+
10204        // |         top           |
10205        // +------+--------+-------+
10206        // | left | center | right |
10207        // +------+--------+-------+
10208        // |        bottom         |
10209        // +-----------------------+
10210
10211        let top_item = cx.new(|cx| {
10212            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10213        });
10214        let bottom_item = cx.new(|cx| {
10215            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10216        });
10217        let left_item = cx.new(|cx| {
10218            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10219        });
10220        let right_item = cx.new(|cx| {
10221            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10222        });
10223        let center_item = cx.new(|cx| {
10224            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10225        });
10226
10227        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10228            let top_pane_id = workspace.active_pane().entity_id();
10229            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10230            workspace.split_pane(
10231                workspace.active_pane().clone(),
10232                SplitDirection::Down,
10233                window,
10234                cx,
10235            );
10236            top_pane_id
10237        });
10238        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10239            let bottom_pane_id = workspace.active_pane().entity_id();
10240            workspace.add_item_to_active_pane(
10241                Box::new(bottom_item.clone()),
10242                None,
10243                false,
10244                window,
10245                cx,
10246            );
10247            workspace.split_pane(
10248                workspace.active_pane().clone(),
10249                SplitDirection::Up,
10250                window,
10251                cx,
10252            );
10253            bottom_pane_id
10254        });
10255        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10256            let left_pane_id = workspace.active_pane().entity_id();
10257            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10258            workspace.split_pane(
10259                workspace.active_pane().clone(),
10260                SplitDirection::Right,
10261                window,
10262                cx,
10263            );
10264            left_pane_id
10265        });
10266        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10267            let right_pane_id = workspace.active_pane().entity_id();
10268            workspace.add_item_to_active_pane(
10269                Box::new(right_item.clone()),
10270                None,
10271                false,
10272                window,
10273                cx,
10274            );
10275            workspace.split_pane(
10276                workspace.active_pane().clone(),
10277                SplitDirection::Left,
10278                window,
10279                cx,
10280            );
10281            right_pane_id
10282        });
10283        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10284            let center_pane_id = workspace.active_pane().entity_id();
10285            workspace.add_item_to_active_pane(
10286                Box::new(center_item.clone()),
10287                None,
10288                false,
10289                window,
10290                cx,
10291            );
10292            center_pane_id
10293        });
10294        cx.executor().run_until_parked();
10295
10296        workspace.update_in(cx, |workspace, window, cx| {
10297            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10298
10299            // Join into next from center pane into right
10300            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10301        });
10302
10303        workspace.update_in(cx, |workspace, window, cx| {
10304            let active_pane = workspace.active_pane();
10305            assert_eq!(right_pane_id, active_pane.entity_id());
10306            assert_eq!(2, active_pane.read(cx).items_len());
10307            let item_ids_in_pane =
10308                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10309            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10310            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10311
10312            // Join into next from right pane into bottom
10313            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10314        });
10315
10316        workspace.update_in(cx, |workspace, window, cx| {
10317            let active_pane = workspace.active_pane();
10318            assert_eq!(bottom_pane_id, active_pane.entity_id());
10319            assert_eq!(3, active_pane.read(cx).items_len());
10320            let item_ids_in_pane =
10321                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10322            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10323            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10324            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10325
10326            // Join into next from bottom pane into left
10327            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10328        });
10329
10330        workspace.update_in(cx, |workspace, window, cx| {
10331            let active_pane = workspace.active_pane();
10332            assert_eq!(left_pane_id, active_pane.entity_id());
10333            assert_eq!(4, active_pane.read(cx).items_len());
10334            let item_ids_in_pane =
10335                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10336            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10337            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10338            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10339            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10340
10341            // Join into next from left pane into top
10342            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10343        });
10344
10345        workspace.update_in(cx, |workspace, window, cx| {
10346            let active_pane = workspace.active_pane();
10347            assert_eq!(top_pane_id, active_pane.entity_id());
10348            assert_eq!(5, active_pane.read(cx).items_len());
10349            let item_ids_in_pane =
10350                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10351            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10352            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10353            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10354            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10355            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10356
10357            // Single pane left: no-op
10358            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10359        });
10360
10361        workspace.update(cx, |workspace, _cx| {
10362            let active_pane = workspace.active_pane();
10363            assert_eq!(top_pane_id, active_pane.entity_id());
10364        });
10365    }
10366
10367    fn add_an_item_to_active_pane(
10368        cx: &mut VisualTestContext,
10369        workspace: &Entity<Workspace>,
10370        item_id: u64,
10371    ) -> Entity<TestItem> {
10372        let item = cx.new(|cx| {
10373            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10374                item_id,
10375                "item{item_id}.txt",
10376                cx,
10377            )])
10378        });
10379        workspace.update_in(cx, |workspace, window, cx| {
10380            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10381        });
10382        item
10383    }
10384
10385    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10386        workspace.update_in(cx, |workspace, window, cx| {
10387            workspace.split_pane(
10388                workspace.active_pane().clone(),
10389                SplitDirection::Right,
10390                window,
10391                cx,
10392            )
10393        })
10394    }
10395
10396    #[gpui::test]
10397    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10398        init_test(cx);
10399        let fs = FakeFs::new(cx.executor());
10400        let project = Project::test(fs, None, cx).await;
10401        let (workspace, cx) =
10402            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10403
10404        add_an_item_to_active_pane(cx, &workspace, 1);
10405        split_pane(cx, &workspace);
10406        add_an_item_to_active_pane(cx, &workspace, 2);
10407        split_pane(cx, &workspace); // empty pane
10408        split_pane(cx, &workspace);
10409        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10410
10411        cx.executor().run_until_parked();
10412
10413        workspace.update(cx, |workspace, cx| {
10414            let num_panes = workspace.panes().len();
10415            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10416            let active_item = workspace
10417                .active_pane()
10418                .read(cx)
10419                .active_item()
10420                .expect("item is in focus");
10421
10422            assert_eq!(num_panes, 4);
10423            assert_eq!(num_items_in_current_pane, 1);
10424            assert_eq!(active_item.item_id(), last_item.item_id());
10425        });
10426
10427        workspace.update_in(cx, |workspace, window, cx| {
10428            workspace.join_all_panes(window, cx);
10429        });
10430
10431        workspace.update(cx, |workspace, cx| {
10432            let num_panes = workspace.panes().len();
10433            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10434            let active_item = workspace
10435                .active_pane()
10436                .read(cx)
10437                .active_item()
10438                .expect("item is in focus");
10439
10440            assert_eq!(num_panes, 1);
10441            assert_eq!(num_items_in_current_pane, 3);
10442            assert_eq!(active_item.item_id(), last_item.item_id());
10443        });
10444    }
10445    struct TestModal(FocusHandle);
10446
10447    impl TestModal {
10448        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10449            Self(cx.focus_handle())
10450        }
10451    }
10452
10453    impl EventEmitter<DismissEvent> for TestModal {}
10454
10455    impl Focusable for TestModal {
10456        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10457            self.0.clone()
10458        }
10459    }
10460
10461    impl ModalView for TestModal {}
10462
10463    impl Render for TestModal {
10464        fn render(
10465            &mut self,
10466            _window: &mut Window,
10467            _cx: &mut Context<TestModal>,
10468        ) -> impl IntoElement {
10469            div().track_focus(&self.0)
10470        }
10471    }
10472
10473    #[gpui::test]
10474    async fn test_panels(cx: &mut gpui::TestAppContext) {
10475        init_test(cx);
10476        let fs = FakeFs::new(cx.executor());
10477
10478        let project = Project::test(fs, [], cx).await;
10479        let (workspace, cx) =
10480            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10481
10482        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10483            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10484            workspace.add_panel(panel_1.clone(), window, cx);
10485            workspace.toggle_dock(DockPosition::Left, window, cx);
10486            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10487            workspace.add_panel(panel_2.clone(), window, cx);
10488            workspace.toggle_dock(DockPosition::Right, window, cx);
10489
10490            let left_dock = workspace.left_dock();
10491            assert_eq!(
10492                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10493                panel_1.panel_id()
10494            );
10495            assert_eq!(
10496                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10497                panel_1.size(window, cx)
10498            );
10499
10500            left_dock.update(cx, |left_dock, cx| {
10501                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10502            });
10503            assert_eq!(
10504                workspace
10505                    .right_dock()
10506                    .read(cx)
10507                    .visible_panel()
10508                    .unwrap()
10509                    .panel_id(),
10510                panel_2.panel_id(),
10511            );
10512
10513            (panel_1, panel_2)
10514        });
10515
10516        // Move panel_1 to the right
10517        panel_1.update_in(cx, |panel_1, window, cx| {
10518            panel_1.set_position(DockPosition::Right, window, cx)
10519        });
10520
10521        workspace.update_in(cx, |workspace, window, cx| {
10522            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10523            // Since it was the only panel on the left, the left dock should now be closed.
10524            assert!(!workspace.left_dock().read(cx).is_open());
10525            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10526            let right_dock = workspace.right_dock();
10527            assert_eq!(
10528                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10529                panel_1.panel_id()
10530            );
10531            assert_eq!(
10532                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10533                px(1337.)
10534            );
10535
10536            // Now we move panel_2 to the left
10537            panel_2.set_position(DockPosition::Left, window, cx);
10538        });
10539
10540        workspace.update(cx, |workspace, cx| {
10541            // Since panel_2 was not visible on the right, we don't open the left dock.
10542            assert!(!workspace.left_dock().read(cx).is_open());
10543            // And the right dock is unaffected in its displaying of panel_1
10544            assert!(workspace.right_dock().read(cx).is_open());
10545            assert_eq!(
10546                workspace
10547                    .right_dock()
10548                    .read(cx)
10549                    .visible_panel()
10550                    .unwrap()
10551                    .panel_id(),
10552                panel_1.panel_id(),
10553            );
10554        });
10555
10556        // Move panel_1 back to the left
10557        panel_1.update_in(cx, |panel_1, window, cx| {
10558            panel_1.set_position(DockPosition::Left, window, cx)
10559        });
10560
10561        workspace.update_in(cx, |workspace, window, cx| {
10562            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10563            let left_dock = workspace.left_dock();
10564            assert!(left_dock.read(cx).is_open());
10565            assert_eq!(
10566                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10567                panel_1.panel_id()
10568            );
10569            assert_eq!(
10570                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10571                px(1337.)
10572            );
10573            // And the right dock should be closed as it no longer has any panels.
10574            assert!(!workspace.right_dock().read(cx).is_open());
10575
10576            // Now we move panel_1 to the bottom
10577            panel_1.set_position(DockPosition::Bottom, window, cx);
10578        });
10579
10580        workspace.update_in(cx, |workspace, window, cx| {
10581            // Since panel_1 was visible on the left, we close the left dock.
10582            assert!(!workspace.left_dock().read(cx).is_open());
10583            // The bottom dock is sized based on the panel's default size,
10584            // since the panel orientation changed from vertical to horizontal.
10585            let bottom_dock = workspace.bottom_dock();
10586            assert_eq!(
10587                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10588                panel_1.size(window, cx),
10589            );
10590            // Close bottom dock and move panel_1 back to the left.
10591            bottom_dock.update(cx, |bottom_dock, cx| {
10592                bottom_dock.set_open(false, window, cx)
10593            });
10594            panel_1.set_position(DockPosition::Left, window, cx);
10595        });
10596
10597        // Emit activated event on panel 1
10598        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10599
10600        // Now the left dock is open and panel_1 is active and focused.
10601        workspace.update_in(cx, |workspace, window, cx| {
10602            let left_dock = workspace.left_dock();
10603            assert!(left_dock.read(cx).is_open());
10604            assert_eq!(
10605                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10606                panel_1.panel_id(),
10607            );
10608            assert!(panel_1.focus_handle(cx).is_focused(window));
10609        });
10610
10611        // Emit closed event on panel 2, which is not active
10612        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10613
10614        // Wo don't close the left dock, because panel_2 wasn't the active panel
10615        workspace.update(cx, |workspace, cx| {
10616            let left_dock = workspace.left_dock();
10617            assert!(left_dock.read(cx).is_open());
10618            assert_eq!(
10619                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10620                panel_1.panel_id(),
10621            );
10622        });
10623
10624        // Emitting a ZoomIn event shows the panel as zoomed.
10625        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10626        workspace.read_with(cx, |workspace, _| {
10627            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10628            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10629        });
10630
10631        // Move panel to another dock while it is zoomed
10632        panel_1.update_in(cx, |panel, window, cx| {
10633            panel.set_position(DockPosition::Right, window, cx)
10634        });
10635        workspace.read_with(cx, |workspace, _| {
10636            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10637
10638            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10639        });
10640
10641        // This is a helper for getting a:
10642        // - valid focus on an element,
10643        // - that isn't a part of the panes and panels system of the Workspace,
10644        // - and doesn't trigger the 'on_focus_lost' API.
10645        let focus_other_view = {
10646            let workspace = workspace.clone();
10647            move |cx: &mut VisualTestContext| {
10648                workspace.update_in(cx, |workspace, window, cx| {
10649                    if workspace.active_modal::<TestModal>(cx).is_some() {
10650                        workspace.toggle_modal(window, cx, TestModal::new);
10651                        workspace.toggle_modal(window, cx, TestModal::new);
10652                    } else {
10653                        workspace.toggle_modal(window, cx, TestModal::new);
10654                    }
10655                })
10656            }
10657        };
10658
10659        // If focus is transferred to another view that's not a panel or another pane, we still show
10660        // the panel as zoomed.
10661        focus_other_view(cx);
10662        workspace.read_with(cx, |workspace, _| {
10663            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10664            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10665        });
10666
10667        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10668        workspace.update_in(cx, |_workspace, window, cx| {
10669            cx.focus_self(window);
10670        });
10671        workspace.read_with(cx, |workspace, _| {
10672            assert_eq!(workspace.zoomed, None);
10673            assert_eq!(workspace.zoomed_position, None);
10674        });
10675
10676        // If focus is transferred again to another view that's not a panel or a pane, we won't
10677        // show the panel as zoomed because it wasn't zoomed before.
10678        focus_other_view(cx);
10679        workspace.read_with(cx, |workspace, _| {
10680            assert_eq!(workspace.zoomed, None);
10681            assert_eq!(workspace.zoomed_position, None);
10682        });
10683
10684        // When the panel is activated, it is zoomed again.
10685        cx.dispatch_action(ToggleRightDock);
10686        workspace.read_with(cx, |workspace, _| {
10687            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10688            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10689        });
10690
10691        // Emitting a ZoomOut event unzooms the panel.
10692        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10693        workspace.read_with(cx, |workspace, _| {
10694            assert_eq!(workspace.zoomed, None);
10695            assert_eq!(workspace.zoomed_position, None);
10696        });
10697
10698        // Emit closed event on panel 1, which is active
10699        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10700
10701        // Now the left dock is closed, because panel_1 was the active panel
10702        workspace.update(cx, |workspace, cx| {
10703            let right_dock = workspace.right_dock();
10704            assert!(!right_dock.read(cx).is_open());
10705        });
10706    }
10707
10708    #[gpui::test]
10709    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10710        init_test(cx);
10711
10712        let fs = FakeFs::new(cx.background_executor.clone());
10713        let project = Project::test(fs, [], cx).await;
10714        let (workspace, cx) =
10715            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10716        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10717
10718        let dirty_regular_buffer = cx.new(|cx| {
10719            TestItem::new(cx)
10720                .with_dirty(true)
10721                .with_label("1.txt")
10722                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10723        });
10724        let dirty_regular_buffer_2 = cx.new(|cx| {
10725            TestItem::new(cx)
10726                .with_dirty(true)
10727                .with_label("2.txt")
10728                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10729        });
10730        let dirty_multi_buffer_with_both = cx.new(|cx| {
10731            TestItem::new(cx)
10732                .with_dirty(true)
10733                .with_buffer_kind(ItemBufferKind::Multibuffer)
10734                .with_label("Fake Project Search")
10735                .with_project_items(&[
10736                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10737                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10738                ])
10739        });
10740        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10741        workspace.update_in(cx, |workspace, window, cx| {
10742            workspace.add_item(
10743                pane.clone(),
10744                Box::new(dirty_regular_buffer.clone()),
10745                None,
10746                false,
10747                false,
10748                window,
10749                cx,
10750            );
10751            workspace.add_item(
10752                pane.clone(),
10753                Box::new(dirty_regular_buffer_2.clone()),
10754                None,
10755                false,
10756                false,
10757                window,
10758                cx,
10759            );
10760            workspace.add_item(
10761                pane.clone(),
10762                Box::new(dirty_multi_buffer_with_both.clone()),
10763                None,
10764                false,
10765                false,
10766                window,
10767                cx,
10768            );
10769        });
10770
10771        pane.update_in(cx, |pane, window, cx| {
10772            pane.activate_item(2, true, true, window, cx);
10773            assert_eq!(
10774                pane.active_item().unwrap().item_id(),
10775                multi_buffer_with_both_files_id,
10776                "Should select the multi buffer in the pane"
10777            );
10778        });
10779        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10780            pane.close_other_items(
10781                &CloseOtherItems {
10782                    save_intent: Some(SaveIntent::Save),
10783                    close_pinned: true,
10784                },
10785                None,
10786                window,
10787                cx,
10788            )
10789        });
10790        cx.background_executor.run_until_parked();
10791        assert!(!cx.has_pending_prompt());
10792        close_all_but_multi_buffer_task
10793            .await
10794            .expect("Closing all buffers but the multi buffer failed");
10795        pane.update(cx, |pane, cx| {
10796            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10797            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10798            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10799            assert_eq!(pane.items_len(), 1);
10800            assert_eq!(
10801                pane.active_item().unwrap().item_id(),
10802                multi_buffer_with_both_files_id,
10803                "Should have only the multi buffer left in the pane"
10804            );
10805            assert!(
10806                dirty_multi_buffer_with_both.read(cx).is_dirty,
10807                "The multi buffer containing the unsaved buffer should still be dirty"
10808            );
10809        });
10810
10811        dirty_regular_buffer.update(cx, |buffer, cx| {
10812            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10813        });
10814
10815        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10816            pane.close_active_item(
10817                &CloseActiveItem {
10818                    save_intent: Some(SaveIntent::Close),
10819                    close_pinned: false,
10820                },
10821                window,
10822                cx,
10823            )
10824        });
10825        cx.background_executor.run_until_parked();
10826        assert!(
10827            cx.has_pending_prompt(),
10828            "Dirty multi buffer should prompt a save dialog"
10829        );
10830        cx.simulate_prompt_answer("Save");
10831        cx.background_executor.run_until_parked();
10832        close_multi_buffer_task
10833            .await
10834            .expect("Closing the multi buffer failed");
10835        pane.update(cx, |pane, cx| {
10836            assert_eq!(
10837                dirty_multi_buffer_with_both.read(cx).save_count,
10838                1,
10839                "Multi buffer item should get be saved"
10840            );
10841            // Test impl does not save inner items, so we do not assert them
10842            assert_eq!(
10843                pane.items_len(),
10844                0,
10845                "No more items should be left in the pane"
10846            );
10847            assert!(pane.active_item().is_none());
10848        });
10849    }
10850
10851    #[gpui::test]
10852    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10853        cx: &mut TestAppContext,
10854    ) {
10855        init_test(cx);
10856
10857        let fs = FakeFs::new(cx.background_executor.clone());
10858        let project = Project::test(fs, [], cx).await;
10859        let (workspace, cx) =
10860            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10861        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10862
10863        let dirty_regular_buffer = cx.new(|cx| {
10864            TestItem::new(cx)
10865                .with_dirty(true)
10866                .with_label("1.txt")
10867                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10868        });
10869        let dirty_regular_buffer_2 = cx.new(|cx| {
10870            TestItem::new(cx)
10871                .with_dirty(true)
10872                .with_label("2.txt")
10873                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10874        });
10875        let clear_regular_buffer = cx.new(|cx| {
10876            TestItem::new(cx)
10877                .with_label("3.txt")
10878                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10879        });
10880
10881        let dirty_multi_buffer_with_both = cx.new(|cx| {
10882            TestItem::new(cx)
10883                .with_dirty(true)
10884                .with_buffer_kind(ItemBufferKind::Multibuffer)
10885                .with_label("Fake Project Search")
10886                .with_project_items(&[
10887                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10888                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10889                    clear_regular_buffer.read(cx).project_items[0].clone(),
10890                ])
10891        });
10892        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10893        workspace.update_in(cx, |workspace, window, cx| {
10894            workspace.add_item(
10895                pane.clone(),
10896                Box::new(dirty_regular_buffer.clone()),
10897                None,
10898                false,
10899                false,
10900                window,
10901                cx,
10902            );
10903            workspace.add_item(
10904                pane.clone(),
10905                Box::new(dirty_multi_buffer_with_both.clone()),
10906                None,
10907                false,
10908                false,
10909                window,
10910                cx,
10911            );
10912        });
10913
10914        pane.update_in(cx, |pane, window, cx| {
10915            pane.activate_item(1, true, true, window, cx);
10916            assert_eq!(
10917                pane.active_item().unwrap().item_id(),
10918                multi_buffer_with_both_files_id,
10919                "Should select the multi buffer in the pane"
10920            );
10921        });
10922        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10923            pane.close_active_item(
10924                &CloseActiveItem {
10925                    save_intent: None,
10926                    close_pinned: false,
10927                },
10928                window,
10929                cx,
10930            )
10931        });
10932        cx.background_executor.run_until_parked();
10933        assert!(
10934            cx.has_pending_prompt(),
10935            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10936        );
10937    }
10938
10939    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10940    /// closed when they are deleted from disk.
10941    #[gpui::test]
10942    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10943        init_test(cx);
10944
10945        // Enable the close_on_disk_deletion setting
10946        cx.update_global(|store: &mut SettingsStore, cx| {
10947            store.update_user_settings(cx, |settings| {
10948                settings.workspace.close_on_file_delete = Some(true);
10949            });
10950        });
10951
10952        let fs = FakeFs::new(cx.background_executor.clone());
10953        let project = Project::test(fs, [], cx).await;
10954        let (workspace, cx) =
10955            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10956        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10957
10958        // Create a test item that simulates a file
10959        let item = cx.new(|cx| {
10960            TestItem::new(cx)
10961                .with_label("test.txt")
10962                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10963        });
10964
10965        // Add item to workspace
10966        workspace.update_in(cx, |workspace, window, cx| {
10967            workspace.add_item(
10968                pane.clone(),
10969                Box::new(item.clone()),
10970                None,
10971                false,
10972                false,
10973                window,
10974                cx,
10975            );
10976        });
10977
10978        // Verify the item is in the pane
10979        pane.read_with(cx, |pane, _| {
10980            assert_eq!(pane.items().count(), 1);
10981        });
10982
10983        // Simulate file deletion by setting the item's deleted state
10984        item.update(cx, |item, _| {
10985            item.set_has_deleted_file(true);
10986        });
10987
10988        // Emit UpdateTab event to trigger the close behavior
10989        cx.run_until_parked();
10990        item.update(cx, |_, cx| {
10991            cx.emit(ItemEvent::UpdateTab);
10992        });
10993
10994        // Allow the close operation to complete
10995        cx.run_until_parked();
10996
10997        // Verify the item was automatically closed
10998        pane.read_with(cx, |pane, _| {
10999            assert_eq!(
11000                pane.items().count(),
11001                0,
11002                "Item should be automatically closed when file is deleted"
11003            );
11004        });
11005    }
11006
11007    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11008    /// open with a strikethrough when they are deleted from disk.
11009    #[gpui::test]
11010    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11011        init_test(cx);
11012
11013        // Ensure close_on_disk_deletion is disabled (default)
11014        cx.update_global(|store: &mut SettingsStore, cx| {
11015            store.update_user_settings(cx, |settings| {
11016                settings.workspace.close_on_file_delete = Some(false);
11017            });
11018        });
11019
11020        let fs = FakeFs::new(cx.background_executor.clone());
11021        let project = Project::test(fs, [], cx).await;
11022        let (workspace, cx) =
11023            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11024        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11025
11026        // Create a test item that simulates a file
11027        let item = cx.new(|cx| {
11028            TestItem::new(cx)
11029                .with_label("test.txt")
11030                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11031        });
11032
11033        // Add item to workspace
11034        workspace.update_in(cx, |workspace, window, cx| {
11035            workspace.add_item(
11036                pane.clone(),
11037                Box::new(item.clone()),
11038                None,
11039                false,
11040                false,
11041                window,
11042                cx,
11043            );
11044        });
11045
11046        // Verify the item is in the pane
11047        pane.read_with(cx, |pane, _| {
11048            assert_eq!(pane.items().count(), 1);
11049        });
11050
11051        // Simulate file deletion
11052        item.update(cx, |item, _| {
11053            item.set_has_deleted_file(true);
11054        });
11055
11056        // Emit UpdateTab event
11057        cx.run_until_parked();
11058        item.update(cx, |_, cx| {
11059            cx.emit(ItemEvent::UpdateTab);
11060        });
11061
11062        // Allow any potential close operation to complete
11063        cx.run_until_parked();
11064
11065        // Verify the item remains open (with strikethrough)
11066        pane.read_with(cx, |pane, _| {
11067            assert_eq!(
11068                pane.items().count(),
11069                1,
11070                "Item should remain open when close_on_disk_deletion is disabled"
11071            );
11072        });
11073
11074        // Verify the item shows as deleted
11075        item.read_with(cx, |item, _| {
11076            assert!(
11077                item.has_deleted_file,
11078                "Item should be marked as having deleted file"
11079            );
11080        });
11081    }
11082
11083    /// Tests that dirty files are not automatically closed when deleted from disk,
11084    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11085    /// unsaved changes without being prompted.
11086    #[gpui::test]
11087    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11088        init_test(cx);
11089
11090        // Enable the close_on_file_delete setting
11091        cx.update_global(|store: &mut SettingsStore, cx| {
11092            store.update_user_settings(cx, |settings| {
11093                settings.workspace.close_on_file_delete = Some(true);
11094            });
11095        });
11096
11097        let fs = FakeFs::new(cx.background_executor.clone());
11098        let project = Project::test(fs, [], cx).await;
11099        let (workspace, cx) =
11100            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11101        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11102
11103        // Create a dirty test item
11104        let item = cx.new(|cx| {
11105            TestItem::new(cx)
11106                .with_dirty(true)
11107                .with_label("test.txt")
11108                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11109        });
11110
11111        // Add item to workspace
11112        workspace.update_in(cx, |workspace, window, cx| {
11113            workspace.add_item(
11114                pane.clone(),
11115                Box::new(item.clone()),
11116                None,
11117                false,
11118                false,
11119                window,
11120                cx,
11121            );
11122        });
11123
11124        // Simulate file deletion
11125        item.update(cx, |item, _| {
11126            item.set_has_deleted_file(true);
11127        });
11128
11129        // Emit UpdateTab event to trigger the close behavior
11130        cx.run_until_parked();
11131        item.update(cx, |_, cx| {
11132            cx.emit(ItemEvent::UpdateTab);
11133        });
11134
11135        // Allow any potential close operation to complete
11136        cx.run_until_parked();
11137
11138        // Verify the item remains open (dirty files are not auto-closed)
11139        pane.read_with(cx, |pane, _| {
11140            assert_eq!(
11141                pane.items().count(),
11142                1,
11143                "Dirty items should not be automatically closed even when file is deleted"
11144            );
11145        });
11146
11147        // Verify the item is marked as deleted and still dirty
11148        item.read_with(cx, |item, _| {
11149            assert!(
11150                item.has_deleted_file,
11151                "Item should be marked as having deleted file"
11152            );
11153            assert!(item.is_dirty, "Item should still be dirty");
11154        });
11155    }
11156
11157    /// Tests that navigation history is cleaned up when files are auto-closed
11158    /// due to deletion from disk.
11159    #[gpui::test]
11160    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11161        init_test(cx);
11162
11163        // Enable the close_on_file_delete setting
11164        cx.update_global(|store: &mut SettingsStore, cx| {
11165            store.update_user_settings(cx, |settings| {
11166                settings.workspace.close_on_file_delete = Some(true);
11167            });
11168        });
11169
11170        let fs = FakeFs::new(cx.background_executor.clone());
11171        let project = Project::test(fs, [], cx).await;
11172        let (workspace, cx) =
11173            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11174        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11175
11176        // Create test items
11177        let item1 = cx.new(|cx| {
11178            TestItem::new(cx)
11179                .with_label("test1.txt")
11180                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11181        });
11182        let item1_id = item1.item_id();
11183
11184        let item2 = cx.new(|cx| {
11185            TestItem::new(cx)
11186                .with_label("test2.txt")
11187                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11188        });
11189
11190        // Add items to workspace
11191        workspace.update_in(cx, |workspace, window, cx| {
11192            workspace.add_item(
11193                pane.clone(),
11194                Box::new(item1.clone()),
11195                None,
11196                false,
11197                false,
11198                window,
11199                cx,
11200            );
11201            workspace.add_item(
11202                pane.clone(),
11203                Box::new(item2.clone()),
11204                None,
11205                false,
11206                false,
11207                window,
11208                cx,
11209            );
11210        });
11211
11212        // Activate item1 to ensure it gets navigation entries
11213        pane.update_in(cx, |pane, window, cx| {
11214            pane.activate_item(0, true, true, window, cx);
11215        });
11216
11217        // Switch to item2 and back to create navigation history
11218        pane.update_in(cx, |pane, window, cx| {
11219            pane.activate_item(1, true, true, window, cx);
11220        });
11221        cx.run_until_parked();
11222
11223        pane.update_in(cx, |pane, window, cx| {
11224            pane.activate_item(0, true, true, window, cx);
11225        });
11226        cx.run_until_parked();
11227
11228        // Simulate file deletion for item1
11229        item1.update(cx, |item, _| {
11230            item.set_has_deleted_file(true);
11231        });
11232
11233        // Emit UpdateTab event to trigger the close behavior
11234        item1.update(cx, |_, cx| {
11235            cx.emit(ItemEvent::UpdateTab);
11236        });
11237        cx.run_until_parked();
11238
11239        // Verify item1 was closed
11240        pane.read_with(cx, |pane, _| {
11241            assert_eq!(
11242                pane.items().count(),
11243                1,
11244                "Should have 1 item remaining after auto-close"
11245            );
11246        });
11247
11248        // Check navigation history after close
11249        let has_item = pane.read_with(cx, |pane, cx| {
11250            let mut has_item = false;
11251            pane.nav_history().for_each_entry(cx, |entry, _| {
11252                if entry.item.id() == item1_id {
11253                    has_item = true;
11254                }
11255            });
11256            has_item
11257        });
11258
11259        assert!(
11260            !has_item,
11261            "Navigation history should not contain closed item entries"
11262        );
11263    }
11264
11265    #[gpui::test]
11266    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11267        cx: &mut TestAppContext,
11268    ) {
11269        init_test(cx);
11270
11271        let fs = FakeFs::new(cx.background_executor.clone());
11272        let project = Project::test(fs, [], cx).await;
11273        let (workspace, cx) =
11274            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11275        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11276
11277        let dirty_regular_buffer = cx.new(|cx| {
11278            TestItem::new(cx)
11279                .with_dirty(true)
11280                .with_label("1.txt")
11281                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11282        });
11283        let dirty_regular_buffer_2 = cx.new(|cx| {
11284            TestItem::new(cx)
11285                .with_dirty(true)
11286                .with_label("2.txt")
11287                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11288        });
11289        let clear_regular_buffer = cx.new(|cx| {
11290            TestItem::new(cx)
11291                .with_label("3.txt")
11292                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11293        });
11294
11295        let dirty_multi_buffer = cx.new(|cx| {
11296            TestItem::new(cx)
11297                .with_dirty(true)
11298                .with_buffer_kind(ItemBufferKind::Multibuffer)
11299                .with_label("Fake Project Search")
11300                .with_project_items(&[
11301                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11302                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11303                    clear_regular_buffer.read(cx).project_items[0].clone(),
11304                ])
11305        });
11306        workspace.update_in(cx, |workspace, window, cx| {
11307            workspace.add_item(
11308                pane.clone(),
11309                Box::new(dirty_regular_buffer.clone()),
11310                None,
11311                false,
11312                false,
11313                window,
11314                cx,
11315            );
11316            workspace.add_item(
11317                pane.clone(),
11318                Box::new(dirty_regular_buffer_2.clone()),
11319                None,
11320                false,
11321                false,
11322                window,
11323                cx,
11324            );
11325            workspace.add_item(
11326                pane.clone(),
11327                Box::new(dirty_multi_buffer.clone()),
11328                None,
11329                false,
11330                false,
11331                window,
11332                cx,
11333            );
11334        });
11335
11336        pane.update_in(cx, |pane, window, cx| {
11337            pane.activate_item(2, true, true, window, cx);
11338            assert_eq!(
11339                pane.active_item().unwrap().item_id(),
11340                dirty_multi_buffer.item_id(),
11341                "Should select the multi buffer in the pane"
11342            );
11343        });
11344        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11345            pane.close_active_item(
11346                &CloseActiveItem {
11347                    save_intent: None,
11348                    close_pinned: false,
11349                },
11350                window,
11351                cx,
11352            )
11353        });
11354        cx.background_executor.run_until_parked();
11355        assert!(
11356            !cx.has_pending_prompt(),
11357            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11358        );
11359        close_multi_buffer_task
11360            .await
11361            .expect("Closing multi buffer failed");
11362        pane.update(cx, |pane, cx| {
11363            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11364            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11365            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11366            assert_eq!(
11367                pane.items()
11368                    .map(|item| item.item_id())
11369                    .sorted()
11370                    .collect::<Vec<_>>(),
11371                vec![
11372                    dirty_regular_buffer.item_id(),
11373                    dirty_regular_buffer_2.item_id(),
11374                ],
11375                "Should have no multi buffer left in the pane"
11376            );
11377            assert!(dirty_regular_buffer.read(cx).is_dirty);
11378            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11379        });
11380    }
11381
11382    #[gpui::test]
11383    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11384        init_test(cx);
11385        let fs = FakeFs::new(cx.executor());
11386        let project = Project::test(fs, [], cx).await;
11387        let (workspace, cx) =
11388            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11389
11390        // Add a new panel to the right dock, opening the dock and setting the
11391        // focus to the new panel.
11392        let panel = workspace.update_in(cx, |workspace, window, cx| {
11393            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11394            workspace.add_panel(panel.clone(), window, cx);
11395
11396            workspace
11397                .right_dock()
11398                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11399
11400            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11401
11402            panel
11403        });
11404
11405        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11406        // panel to the next valid position which, in this case, is the left
11407        // dock.
11408        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11409        workspace.update(cx, |workspace, cx| {
11410            assert!(workspace.left_dock().read(cx).is_open());
11411            assert_eq!(panel.read(cx).position, DockPosition::Left);
11412        });
11413
11414        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11415        // panel to the next valid position which, in this case, is the bottom
11416        // dock.
11417        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11418        workspace.update(cx, |workspace, cx| {
11419            assert!(workspace.bottom_dock().read(cx).is_open());
11420            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11421        });
11422
11423        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11424        // around moving the panel to its initial position, the right dock.
11425        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11426        workspace.update(cx, |workspace, cx| {
11427            assert!(workspace.right_dock().read(cx).is_open());
11428            assert_eq!(panel.read(cx).position, DockPosition::Right);
11429        });
11430
11431        // Remove focus from the panel, ensuring that, if the panel is not
11432        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11433        // the panel's position, so the panel is still in the right dock.
11434        workspace.update_in(cx, |workspace, window, cx| {
11435            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11436        });
11437
11438        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11439        workspace.update(cx, |workspace, cx| {
11440            assert!(workspace.right_dock().read(cx).is_open());
11441            assert_eq!(panel.read(cx).position, DockPosition::Right);
11442        });
11443    }
11444
11445    #[gpui::test]
11446    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11447        init_test(cx);
11448
11449        let fs = FakeFs::new(cx.executor());
11450        let project = Project::test(fs, [], cx).await;
11451        let (workspace, cx) =
11452            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11453
11454        let item_1 = cx.new(|cx| {
11455            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11456        });
11457        workspace.update_in(cx, |workspace, window, cx| {
11458            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11459            workspace.move_item_to_pane_in_direction(
11460                &MoveItemToPaneInDirection {
11461                    direction: SplitDirection::Right,
11462                    focus: true,
11463                    clone: false,
11464                },
11465                window,
11466                cx,
11467            );
11468            workspace.move_item_to_pane_at_index(
11469                &MoveItemToPane {
11470                    destination: 3,
11471                    focus: true,
11472                    clone: false,
11473                },
11474                window,
11475                cx,
11476            );
11477
11478            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11479            assert_eq!(
11480                pane_items_paths(&workspace.active_pane, cx),
11481                vec!["first.txt".to_string()],
11482                "Single item was not moved anywhere"
11483            );
11484        });
11485
11486        let item_2 = cx.new(|cx| {
11487            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11488        });
11489        workspace.update_in(cx, |workspace, window, cx| {
11490            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11491            assert_eq!(
11492                pane_items_paths(&workspace.panes[0], cx),
11493                vec!["first.txt".to_string(), "second.txt".to_string()],
11494            );
11495            workspace.move_item_to_pane_in_direction(
11496                &MoveItemToPaneInDirection {
11497                    direction: SplitDirection::Right,
11498                    focus: true,
11499                    clone: false,
11500                },
11501                window,
11502                cx,
11503            );
11504
11505            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11506            assert_eq!(
11507                pane_items_paths(&workspace.panes[0], cx),
11508                vec!["first.txt".to_string()],
11509                "After moving, one item should be left in the original pane"
11510            );
11511            assert_eq!(
11512                pane_items_paths(&workspace.panes[1], cx),
11513                vec!["second.txt".to_string()],
11514                "New item should have been moved to the new pane"
11515            );
11516        });
11517
11518        let item_3 = cx.new(|cx| {
11519            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11520        });
11521        workspace.update_in(cx, |workspace, window, cx| {
11522            let original_pane = workspace.panes[0].clone();
11523            workspace.set_active_pane(&original_pane, window, cx);
11524            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11525            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11526            assert_eq!(
11527                pane_items_paths(&workspace.active_pane, cx),
11528                vec!["first.txt".to_string(), "third.txt".to_string()],
11529                "New pane should be ready to move one item out"
11530            );
11531
11532            workspace.move_item_to_pane_at_index(
11533                &MoveItemToPane {
11534                    destination: 3,
11535                    focus: true,
11536                    clone: false,
11537                },
11538                window,
11539                cx,
11540            );
11541            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11542            assert_eq!(
11543                pane_items_paths(&workspace.active_pane, cx),
11544                vec!["first.txt".to_string()],
11545                "After moving, one item should be left in the original pane"
11546            );
11547            assert_eq!(
11548                pane_items_paths(&workspace.panes[1], cx),
11549                vec!["second.txt".to_string()],
11550                "Previously created pane should be unchanged"
11551            );
11552            assert_eq!(
11553                pane_items_paths(&workspace.panes[2], cx),
11554                vec!["third.txt".to_string()],
11555                "New item should have been moved to the new pane"
11556            );
11557        });
11558    }
11559
11560    #[gpui::test]
11561    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11562        init_test(cx);
11563
11564        let fs = FakeFs::new(cx.executor());
11565        let project = Project::test(fs, [], cx).await;
11566        let (workspace, cx) =
11567            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11568
11569        let item_1 = cx.new(|cx| {
11570            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11571        });
11572        workspace.update_in(cx, |workspace, window, cx| {
11573            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11574            workspace.move_item_to_pane_in_direction(
11575                &MoveItemToPaneInDirection {
11576                    direction: SplitDirection::Right,
11577                    focus: true,
11578                    clone: true,
11579                },
11580                window,
11581                cx,
11582            );
11583            workspace.move_item_to_pane_at_index(
11584                &MoveItemToPane {
11585                    destination: 3,
11586                    focus: true,
11587                    clone: true,
11588                },
11589                window,
11590                cx,
11591            );
11592        });
11593        cx.run_until_parked();
11594
11595        workspace.update(cx, |workspace, cx| {
11596            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11597            for pane in workspace.panes() {
11598                assert_eq!(
11599                    pane_items_paths(pane, cx),
11600                    vec!["first.txt".to_string()],
11601                    "Single item exists in all panes"
11602                );
11603            }
11604        });
11605
11606        // verify that the active pane has been updated after waiting for the
11607        // pane focus event to fire and resolve
11608        workspace.read_with(cx, |workspace, _app| {
11609            assert_eq!(
11610                workspace.active_pane(),
11611                &workspace.panes[2],
11612                "The third pane should be the active one: {:?}",
11613                workspace.panes
11614            );
11615        })
11616    }
11617
11618    mod register_project_item_tests {
11619
11620        use super::*;
11621
11622        // View
11623        struct TestPngItemView {
11624            focus_handle: FocusHandle,
11625        }
11626        // Model
11627        struct TestPngItem {}
11628
11629        impl project::ProjectItem for TestPngItem {
11630            fn try_open(
11631                _project: &Entity<Project>,
11632                path: &ProjectPath,
11633                cx: &mut App,
11634            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11635                if path.path.extension().unwrap() == "png" {
11636                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11637                } else {
11638                    None
11639                }
11640            }
11641
11642            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11643                None
11644            }
11645
11646            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11647                None
11648            }
11649
11650            fn is_dirty(&self) -> bool {
11651                false
11652            }
11653        }
11654
11655        impl Item for TestPngItemView {
11656            type Event = ();
11657            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11658                "".into()
11659            }
11660        }
11661        impl EventEmitter<()> for TestPngItemView {}
11662        impl Focusable for TestPngItemView {
11663            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11664                self.focus_handle.clone()
11665            }
11666        }
11667
11668        impl Render for TestPngItemView {
11669            fn render(
11670                &mut self,
11671                _window: &mut Window,
11672                _cx: &mut Context<Self>,
11673            ) -> impl IntoElement {
11674                Empty
11675            }
11676        }
11677
11678        impl ProjectItem for TestPngItemView {
11679            type Item = TestPngItem;
11680
11681            fn for_project_item(
11682                _project: Entity<Project>,
11683                _pane: Option<&Pane>,
11684                _item: Entity<Self::Item>,
11685                _: &mut Window,
11686                cx: &mut Context<Self>,
11687            ) -> Self
11688            where
11689                Self: Sized,
11690            {
11691                Self {
11692                    focus_handle: cx.focus_handle(),
11693                }
11694            }
11695        }
11696
11697        // View
11698        struct TestIpynbItemView {
11699            focus_handle: FocusHandle,
11700        }
11701        // Model
11702        struct TestIpynbItem {}
11703
11704        impl project::ProjectItem for TestIpynbItem {
11705            fn try_open(
11706                _project: &Entity<Project>,
11707                path: &ProjectPath,
11708                cx: &mut App,
11709            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11710                if path.path.extension().unwrap() == "ipynb" {
11711                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11712                } else {
11713                    None
11714                }
11715            }
11716
11717            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11718                None
11719            }
11720
11721            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11722                None
11723            }
11724
11725            fn is_dirty(&self) -> bool {
11726                false
11727            }
11728        }
11729
11730        impl Item for TestIpynbItemView {
11731            type Event = ();
11732            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11733                "".into()
11734            }
11735        }
11736        impl EventEmitter<()> for TestIpynbItemView {}
11737        impl Focusable for TestIpynbItemView {
11738            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11739                self.focus_handle.clone()
11740            }
11741        }
11742
11743        impl Render for TestIpynbItemView {
11744            fn render(
11745                &mut self,
11746                _window: &mut Window,
11747                _cx: &mut Context<Self>,
11748            ) -> impl IntoElement {
11749                Empty
11750            }
11751        }
11752
11753        impl ProjectItem for TestIpynbItemView {
11754            type Item = TestIpynbItem;
11755
11756            fn for_project_item(
11757                _project: Entity<Project>,
11758                _pane: Option<&Pane>,
11759                _item: Entity<Self::Item>,
11760                _: &mut Window,
11761                cx: &mut Context<Self>,
11762            ) -> Self
11763            where
11764                Self: Sized,
11765            {
11766                Self {
11767                    focus_handle: cx.focus_handle(),
11768                }
11769            }
11770        }
11771
11772        struct TestAlternatePngItemView {
11773            focus_handle: FocusHandle,
11774        }
11775
11776        impl Item for TestAlternatePngItemView {
11777            type Event = ();
11778            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11779                "".into()
11780            }
11781        }
11782
11783        impl EventEmitter<()> for TestAlternatePngItemView {}
11784        impl Focusable for TestAlternatePngItemView {
11785            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11786                self.focus_handle.clone()
11787            }
11788        }
11789
11790        impl Render for TestAlternatePngItemView {
11791            fn render(
11792                &mut self,
11793                _window: &mut Window,
11794                _cx: &mut Context<Self>,
11795            ) -> impl IntoElement {
11796                Empty
11797            }
11798        }
11799
11800        impl ProjectItem for TestAlternatePngItemView {
11801            type Item = TestPngItem;
11802
11803            fn for_project_item(
11804                _project: Entity<Project>,
11805                _pane: Option<&Pane>,
11806                _item: Entity<Self::Item>,
11807                _: &mut Window,
11808                cx: &mut Context<Self>,
11809            ) -> Self
11810            where
11811                Self: Sized,
11812            {
11813                Self {
11814                    focus_handle: cx.focus_handle(),
11815                }
11816            }
11817        }
11818
11819        #[gpui::test]
11820        async fn test_register_project_item(cx: &mut TestAppContext) {
11821            init_test(cx);
11822
11823            cx.update(|cx| {
11824                register_project_item::<TestPngItemView>(cx);
11825                register_project_item::<TestIpynbItemView>(cx);
11826            });
11827
11828            let fs = FakeFs::new(cx.executor());
11829            fs.insert_tree(
11830                "/root1",
11831                json!({
11832                    "one.png": "BINARYDATAHERE",
11833                    "two.ipynb": "{ totally a notebook }",
11834                    "three.txt": "editing text, sure why not?"
11835                }),
11836            )
11837            .await;
11838
11839            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11840            let (workspace, cx) =
11841                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11842
11843            let worktree_id = project.update(cx, |project, cx| {
11844                project.worktrees(cx).next().unwrap().read(cx).id()
11845            });
11846
11847            let handle = workspace
11848                .update_in(cx, |workspace, window, cx| {
11849                    let project_path = (worktree_id, rel_path("one.png"));
11850                    workspace.open_path(project_path, None, true, window, cx)
11851                })
11852                .await
11853                .unwrap();
11854
11855            // Now we can check if the handle we got back errored or not
11856            assert_eq!(
11857                handle.to_any_view().entity_type(),
11858                TypeId::of::<TestPngItemView>()
11859            );
11860
11861            let handle = workspace
11862                .update_in(cx, |workspace, window, cx| {
11863                    let project_path = (worktree_id, rel_path("two.ipynb"));
11864                    workspace.open_path(project_path, None, true, window, cx)
11865                })
11866                .await
11867                .unwrap();
11868
11869            assert_eq!(
11870                handle.to_any_view().entity_type(),
11871                TypeId::of::<TestIpynbItemView>()
11872            );
11873
11874            let handle = workspace
11875                .update_in(cx, |workspace, window, cx| {
11876                    let project_path = (worktree_id, rel_path("three.txt"));
11877                    workspace.open_path(project_path, None, true, window, cx)
11878                })
11879                .await;
11880            assert!(handle.is_err());
11881        }
11882
11883        #[gpui::test]
11884        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11885            init_test(cx);
11886
11887            cx.update(|cx| {
11888                register_project_item::<TestPngItemView>(cx);
11889                register_project_item::<TestAlternatePngItemView>(cx);
11890            });
11891
11892            let fs = FakeFs::new(cx.executor());
11893            fs.insert_tree(
11894                "/root1",
11895                json!({
11896                    "one.png": "BINARYDATAHERE",
11897                    "two.ipynb": "{ totally a notebook }",
11898                    "three.txt": "editing text, sure why not?"
11899                }),
11900            )
11901            .await;
11902            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11903            let (workspace, cx) =
11904                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11905            let worktree_id = project.update(cx, |project, cx| {
11906                project.worktrees(cx).next().unwrap().read(cx).id()
11907            });
11908
11909            let handle = workspace
11910                .update_in(cx, |workspace, window, cx| {
11911                    let project_path = (worktree_id, rel_path("one.png"));
11912                    workspace.open_path(project_path, None, true, window, cx)
11913                })
11914                .await
11915                .unwrap();
11916
11917            // This _must_ be the second item registered
11918            assert_eq!(
11919                handle.to_any_view().entity_type(),
11920                TypeId::of::<TestAlternatePngItemView>()
11921            );
11922
11923            let handle = workspace
11924                .update_in(cx, |workspace, window, cx| {
11925                    let project_path = (worktree_id, rel_path("three.txt"));
11926                    workspace.open_path(project_path, None, true, window, cx)
11927                })
11928                .await;
11929            assert!(handle.is_err());
11930        }
11931    }
11932
11933    #[gpui::test]
11934    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11935        init_test(cx);
11936
11937        let fs = FakeFs::new(cx.executor());
11938        let project = Project::test(fs, [], cx).await;
11939        let (workspace, _cx) =
11940            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11941
11942        // Test with status bar shown (default)
11943        workspace.read_with(cx, |workspace, cx| {
11944            let visible = workspace.status_bar_visible(cx);
11945            assert!(visible, "Status bar should be visible by default");
11946        });
11947
11948        // Test with status bar hidden
11949        cx.update_global(|store: &mut SettingsStore, cx| {
11950            store.update_user_settings(cx, |settings| {
11951                settings.status_bar.get_or_insert_default().show = Some(false);
11952            });
11953        });
11954
11955        workspace.read_with(cx, |workspace, cx| {
11956            let visible = workspace.status_bar_visible(cx);
11957            assert!(!visible, "Status bar should be hidden when show is false");
11958        });
11959
11960        // Test with status bar shown explicitly
11961        cx.update_global(|store: &mut SettingsStore, cx| {
11962            store.update_user_settings(cx, |settings| {
11963                settings.status_bar.get_or_insert_default().show = Some(true);
11964            });
11965        });
11966
11967        workspace.read_with(cx, |workspace, cx| {
11968            let visible = workspace.status_bar_visible(cx);
11969            assert!(visible, "Status bar should be visible when show is true");
11970        });
11971    }
11972
11973    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11974        pane.read(cx)
11975            .items()
11976            .flat_map(|item| {
11977                item.project_paths(cx)
11978                    .into_iter()
11979                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11980            })
11981            .collect()
11982    }
11983
11984    pub fn init_test(cx: &mut TestAppContext) {
11985        cx.update(|cx| {
11986            let settings_store = SettingsStore::test(cx);
11987            cx.set_global(settings_store);
11988            theme::init(theme::LoadThemes::JustBase, cx);
11989        });
11990    }
11991
11992    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11993        let item = TestProjectItem::new(id, path, cx);
11994        item.update(cx, |item, _| {
11995            item.is_dirty = true;
11996        });
11997        item
11998    }
11999}