workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12mod security_modal;
   13pub mod shared_screen;
   14mod status_bar;
   15pub mod tasks;
   16mod theme_preview;
   17mod toast_layer;
   18mod toolbar;
   19pub mod utility_pane;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use path_list::PathList;
   26pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   27
   28use anyhow::{Context as _, Result, anyhow};
   29use call::{ActiveCall, call_settings::CallSettings};
   30use client::{
   31    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   32    proto::{self, ErrorCode, PanelId, PeerId},
   33};
   34use collections::{HashMap, HashSet, hash_map};
   35use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   36use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   37use futures::{
   38    Future, FutureExt, StreamExt,
   39    channel::{
   40        mpsc::{self, UnboundedReceiver, UnboundedSender},
   41        oneshot,
   42    },
   43    future::{Shared, try_join_all},
   44};
   45use gpui::{
   46    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   47    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   48    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   49    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   50    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   51    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   52};
   53pub use history_manager::*;
   54pub use item::{
   55    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   56    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   57};
   58use itertools::Itertools;
   59use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   60pub use modal_layer::*;
   61use node_runtime::NodeRuntime;
   62use notifications::{
   63    DetachAndPromptErr, Notifications, dismiss_app_notification,
   64    simple_message_notification::MessageNotification,
   65};
   66pub use pane::*;
   67pub use pane_group::{
   68    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   69    SplitDirection,
   70};
   71use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   72pub use persistence::{
   73    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   74    model::{ItemId, SerializedWorkspaceLocation},
   75};
   76use postage::stream::Stream;
   77use project::{
   78    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   79    WorktreeSettings,
   80    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   81    project_settings::ProjectSettings,
   82    toolchain_store::ToolchainStoreEvent,
   83    trusted_worktrees::{TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Clears all notifications.
  217        ClearAllNotifications,
  218        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  219        ClearNavigationHistory,
  220        /// Closes the active dock.
  221        CloseActiveDock,
  222        /// Closes all docks.
  223        CloseAllDocks,
  224        /// Toggles all docks.
  225        ToggleAllDocks,
  226        /// Closes the current window.
  227        CloseWindow,
  228        /// Opens the feedback dialog.
  229        Feedback,
  230        /// Follows the next collaborator in the session.
  231        FollowNextCollaborator,
  232        /// Moves the focused panel to the next position.
  233        MoveFocusedPanelToNextPosition,
  234        /// Opens a new terminal in the center.
  235        NewCenterTerminal,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new terminal.
  245        NewTerminal,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Zooms in on the active pane.
  285        ZoomIn,
  286        /// Zooms out of the active pane.
  287        ZoomOut,
  288        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  289        /// If the modal is shown already, closes it without trusting any worktree.
  290        ToggleWorktreeSecurity,
  291        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  292        /// Requires restart to take effect on already opened projects.
  293        ClearTrustedWorktrees,
  294        /// Stops following a collaborator.
  295        Unfollow,
  296        /// Restores the banner.
  297        RestoreBanner,
  298        /// Toggles expansion of the selected item.
  299        ToggleExpandItem,
  300    ]
  301);
  302
  303/// Activates a specific pane by its index.
  304#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306pub struct ActivatePane(pub usize);
  307
  308/// Moves an item to a specific pane by index.
  309#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  310#[action(namespace = workspace)]
  311#[serde(deny_unknown_fields)]
  312pub struct MoveItemToPane {
  313    #[serde(default = "default_1")]
  314    pub destination: usize,
  315    #[serde(default = "default_true")]
  316    pub focus: bool,
  317    #[serde(default)]
  318    pub clone: bool,
  319}
  320
  321fn default_1() -> usize {
  322    1
  323}
  324
  325/// Moves an item to a pane in the specified direction.
  326#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct MoveItemToPaneInDirection {
  330    #[serde(default = "default_right")]
  331    pub direction: SplitDirection,
  332    #[serde(default = "default_true")]
  333    pub focus: bool,
  334    #[serde(default)]
  335    pub clone: bool,
  336}
  337
  338/// Creates a new file in a split of the desired direction.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct NewFileSplit(pub SplitDirection);
  343
  344fn default_right() -> SplitDirection {
  345    SplitDirection::Right
  346}
  347
  348/// Saves all open files in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct SaveAll {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Saves the current file with the specified options.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct Save {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Closes all items and panes in the workspace.
  367#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct CloseAllItemsAndPanes {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all inactive tabs and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseInactiveTabsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Sends a sequence of keystrokes to the active element.
  385#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387pub struct SendKeystrokes(pub String);
  388
  389actions!(
  390    project_symbols,
  391    [
  392        /// Toggles the project symbols search.
  393        #[action(name = "Toggle")]
  394        ToggleProjectSymbols
  395    ]
  396);
  397
  398/// Toggles the file finder interface.
  399#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  400#[action(namespace = file_finder, name = "Toggle")]
  401#[serde(deny_unknown_fields)]
  402pub struct ToggleFileFinder {
  403    #[serde(default)]
  404    pub separate_history: bool,
  405}
  406
  407/// Increases size of a currently focused dock by a given amount of pixels.
  408#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct IncreaseActiveDockSize {
  412    /// For 0px parameter, uses UI font size value.
  413    #[serde(default)]
  414    pub px: u32,
  415}
  416
  417/// Decreases size of a currently focused dock by a given amount of pixels.
  418#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct DecreaseActiveDockSize {
  422    /// For 0px parameter, uses UI font size value.
  423    #[serde(default)]
  424    pub px: u32,
  425}
  426
  427/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  428#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct IncreaseOpenDocksSize {
  432    /// For 0px parameter, uses UI font size value.
  433    #[serde(default)]
  434    pub px: u32,
  435}
  436
  437/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  438#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct DecreaseOpenDocksSize {
  442    /// For 0px parameter, uses UI font size value.
  443    #[serde(default)]
  444    pub px: u32,
  445}
  446
  447actions!(
  448    workspace,
  449    [
  450        /// Activates the pane to the left.
  451        ActivatePaneLeft,
  452        /// Activates the pane to the right.
  453        ActivatePaneRight,
  454        /// Activates the pane above.
  455        ActivatePaneUp,
  456        /// Activates the pane below.
  457        ActivatePaneDown,
  458        /// Swaps the current pane with the one to the left.
  459        SwapPaneLeft,
  460        /// Swaps the current pane with the one to the right.
  461        SwapPaneRight,
  462        /// Swaps the current pane with the one above.
  463        SwapPaneUp,
  464        /// Swaps the current pane with the one below.
  465        SwapPaneDown,
  466        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  467        SwapPaneAdjacent,
  468        /// Move the current pane to be at the far left.
  469        MovePaneLeft,
  470        /// Move the current pane to be at the far right.
  471        MovePaneRight,
  472        /// Move the current pane to be at the very top.
  473        MovePaneUp,
  474        /// Move the current pane to be at the very bottom.
  475        MovePaneDown,
  476    ]
  477);
  478
  479#[derive(PartialEq, Eq, Debug)]
  480pub enum CloseIntent {
  481    /// Quit the program entirely.
  482    Quit,
  483    /// Close a window.
  484    CloseWindow,
  485    /// Replace the workspace in an existing window.
  486    ReplaceWindow,
  487}
  488
  489#[derive(Clone)]
  490pub struct Toast {
  491    id: NotificationId,
  492    msg: Cow<'static, str>,
  493    autohide: bool,
  494    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  495}
  496
  497impl Toast {
  498    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  499        Toast {
  500            id,
  501            msg: msg.into(),
  502            on_click: None,
  503            autohide: false,
  504        }
  505    }
  506
  507    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  508    where
  509        M: Into<Cow<'static, str>>,
  510        F: Fn(&mut Window, &mut App) + 'static,
  511    {
  512        self.on_click = Some((message.into(), Arc::new(on_click)));
  513        self
  514    }
  515
  516    pub fn autohide(mut self) -> Self {
  517        self.autohide = true;
  518        self
  519    }
  520}
  521
  522impl PartialEq for Toast {
  523    fn eq(&self, other: &Self) -> bool {
  524        self.id == other.id
  525            && self.msg == other.msg
  526            && self.on_click.is_some() == other.on_click.is_some()
  527    }
  528}
  529
  530/// Opens a new terminal with the specified working directory.
  531#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  532#[action(namespace = workspace)]
  533#[serde(deny_unknown_fields)]
  534pub struct OpenTerminal {
  535    pub working_directory: PathBuf,
  536}
  537
  538#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  539pub struct WorkspaceId(i64);
  540
  541impl StaticColumnCount for WorkspaceId {}
  542impl Bind for WorkspaceId {
  543    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  544        self.0.bind(statement, start_index)
  545    }
  546}
  547impl Column for WorkspaceId {
  548    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  549        i64::column(statement, start_index)
  550            .map(|(i, next_index)| (Self(i), next_index))
  551            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  552    }
  553}
  554impl From<WorkspaceId> for i64 {
  555    fn from(val: WorkspaceId) -> Self {
  556        val.0
  557    }
  558}
  559
  560fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  561    let paths = cx.prompt_for_paths(options);
  562    cx.spawn(
  563        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  564            Ok(Some(paths)) => {
  565                cx.update(|cx| {
  566                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  567                })
  568                .ok();
  569            }
  570            Ok(None) => {}
  571            Err(err) => {
  572                util::log_err(&err);
  573                cx.update(|cx| {
  574                    if let Some(workspace_window) = cx
  575                        .active_window()
  576                        .and_then(|window| window.downcast::<Workspace>())
  577                    {
  578                        workspace_window
  579                            .update(cx, |workspace, _, cx| {
  580                                workspace.show_portal_error(err.to_string(), cx);
  581                            })
  582                            .ok();
  583                    }
  584                })
  585                .ok();
  586            }
  587        },
  588    )
  589    .detach();
  590}
  591
  592pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  593    component::init();
  594    theme_preview::init(cx);
  595    toast_layer::init(cx);
  596    history_manager::init(cx);
  597
  598    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  599        .on_action(|_: &Reload, cx| reload(cx))
  600        .on_action({
  601            let app_state = Arc::downgrade(&app_state);
  602            move |_: &Open, cx: &mut App| {
  603                if let Some(app_state) = app_state.upgrade() {
  604                    prompt_and_open_paths(
  605                        app_state,
  606                        PathPromptOptions {
  607                            files: true,
  608                            directories: true,
  609                            multiple: true,
  610                            prompt: None,
  611                        },
  612                        cx,
  613                    );
  614                }
  615            }
  616        })
  617        .on_action({
  618            let app_state = Arc::downgrade(&app_state);
  619            move |_: &OpenFiles, cx: &mut App| {
  620                let directories = cx.can_select_mixed_files_and_dirs();
  621                if let Some(app_state) = app_state.upgrade() {
  622                    prompt_and_open_paths(
  623                        app_state,
  624                        PathPromptOptions {
  625                            files: true,
  626                            directories,
  627                            multiple: true,
  628                            prompt: None,
  629                        },
  630                        cx,
  631                    );
  632                }
  633            }
  634        });
  635}
  636
  637type BuildProjectItemFn =
  638    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  639
  640type BuildProjectItemForPathFn =
  641    fn(
  642        &Entity<Project>,
  643        &ProjectPath,
  644        &mut Window,
  645        &mut App,
  646    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  647
  648#[derive(Clone, Default)]
  649struct ProjectItemRegistry {
  650    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  651    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  652}
  653
  654impl ProjectItemRegistry {
  655    fn register<T: ProjectItem>(&mut self) {
  656        self.build_project_item_fns_by_type.insert(
  657            TypeId::of::<T::Item>(),
  658            |item, project, pane, window, cx| {
  659                let item = item.downcast().unwrap();
  660                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  661                    as Box<dyn ItemHandle>
  662            },
  663        );
  664        self.build_project_item_for_path_fns
  665            .push(|project, project_path, window, cx| {
  666                let project_path = project_path.clone();
  667                let is_file = project
  668                    .read(cx)
  669                    .entry_for_path(&project_path, cx)
  670                    .is_some_and(|entry| entry.is_file());
  671                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  672                let is_local = project.read(cx).is_local();
  673                let project_item =
  674                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  675                let project = project.clone();
  676                Some(window.spawn(cx, async move |cx| {
  677                    match project_item.await.with_context(|| {
  678                        format!(
  679                            "opening project path {:?}",
  680                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  681                        )
  682                    }) {
  683                        Ok(project_item) => {
  684                            let project_item = project_item;
  685                            let project_entry_id: Option<ProjectEntryId> =
  686                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  687                            let build_workspace_item = Box::new(
  688                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  689                                    Box::new(cx.new(|cx| {
  690                                        T::for_project_item(
  691                                            project,
  692                                            Some(pane),
  693                                            project_item,
  694                                            window,
  695                                            cx,
  696                                        )
  697                                    })) as Box<dyn ItemHandle>
  698                                },
  699                            ) as Box<_>;
  700                            Ok((project_entry_id, build_workspace_item))
  701                        }
  702                        Err(e) => {
  703                            log::warn!("Failed to open a project item: {e:#}");
  704                            if e.error_code() == ErrorCode::Internal {
  705                                if let Some(abs_path) =
  706                                    entry_abs_path.as_deref().filter(|_| is_file)
  707                                {
  708                                    if let Some(broken_project_item_view) =
  709                                        cx.update(|window, cx| {
  710                                            T::for_broken_project_item(
  711                                                abs_path, is_local, &e, window, cx,
  712                                            )
  713                                        })?
  714                                    {
  715                                        let build_workspace_item = Box::new(
  716                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  717                                                cx.new(|_| broken_project_item_view).boxed_clone()
  718                                            },
  719                                        )
  720                                        as Box<_>;
  721                                        return Ok((None, build_workspace_item));
  722                                    }
  723                                }
  724                            }
  725                            Err(e)
  726                        }
  727                    }
  728                }))
  729            });
  730    }
  731
  732    fn open_path(
  733        &self,
  734        project: &Entity<Project>,
  735        path: &ProjectPath,
  736        window: &mut Window,
  737        cx: &mut App,
  738    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  739        let Some(open_project_item) = self
  740            .build_project_item_for_path_fns
  741            .iter()
  742            .rev()
  743            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  744        else {
  745            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  746        };
  747        open_project_item
  748    }
  749
  750    fn build_item<T: project::ProjectItem>(
  751        &self,
  752        item: Entity<T>,
  753        project: Entity<Project>,
  754        pane: Option<&Pane>,
  755        window: &mut Window,
  756        cx: &mut App,
  757    ) -> Option<Box<dyn ItemHandle>> {
  758        let build = self
  759            .build_project_item_fns_by_type
  760            .get(&TypeId::of::<T>())?;
  761        Some(build(item.into_any(), project, pane, window, cx))
  762    }
  763}
  764
  765type WorkspaceItemBuilder =
  766    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  767
  768impl Global for ProjectItemRegistry {}
  769
  770/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  771/// items will get a chance to open the file, starting from the project item that
  772/// was added last.
  773pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  774    cx.default_global::<ProjectItemRegistry>().register::<I>();
  775}
  776
  777#[derive(Default)]
  778pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  779
  780struct FollowableViewDescriptor {
  781    from_state_proto: fn(
  782        Entity<Workspace>,
  783        ViewId,
  784        &mut Option<proto::view::Variant>,
  785        &mut Window,
  786        &mut App,
  787    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  788    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  789}
  790
  791impl Global for FollowableViewRegistry {}
  792
  793impl FollowableViewRegistry {
  794    pub fn register<I: FollowableItem>(cx: &mut App) {
  795        cx.default_global::<Self>().0.insert(
  796            TypeId::of::<I>(),
  797            FollowableViewDescriptor {
  798                from_state_proto: |workspace, id, state, window, cx| {
  799                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  800                        cx.foreground_executor()
  801                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  802                    })
  803                },
  804                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  805            },
  806        );
  807    }
  808
  809    pub fn from_state_proto(
  810        workspace: Entity<Workspace>,
  811        view_id: ViewId,
  812        mut state: Option<proto::view::Variant>,
  813        window: &mut Window,
  814        cx: &mut App,
  815    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  816        cx.update_default_global(|this: &mut Self, cx| {
  817            this.0.values().find_map(|descriptor| {
  818                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  819            })
  820        })
  821    }
  822
  823    pub fn to_followable_view(
  824        view: impl Into<AnyView>,
  825        cx: &App,
  826    ) -> Option<Box<dyn FollowableItemHandle>> {
  827        let this = cx.try_global::<Self>()?;
  828        let view = view.into();
  829        let descriptor = this.0.get(&view.entity_type())?;
  830        Some((descriptor.to_followable_view)(&view))
  831    }
  832}
  833
  834#[derive(Copy, Clone)]
  835struct SerializableItemDescriptor {
  836    deserialize: fn(
  837        Entity<Project>,
  838        WeakEntity<Workspace>,
  839        WorkspaceId,
  840        ItemId,
  841        &mut Window,
  842        &mut Context<Pane>,
  843    ) -> Task<Result<Box<dyn ItemHandle>>>,
  844    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  845    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  846}
  847
  848#[derive(Default)]
  849struct SerializableItemRegistry {
  850    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  851    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  852}
  853
  854impl Global for SerializableItemRegistry {}
  855
  856impl SerializableItemRegistry {
  857    fn deserialize(
  858        item_kind: &str,
  859        project: Entity<Project>,
  860        workspace: WeakEntity<Workspace>,
  861        workspace_id: WorkspaceId,
  862        item_item: ItemId,
  863        window: &mut Window,
  864        cx: &mut Context<Pane>,
  865    ) -> Task<Result<Box<dyn ItemHandle>>> {
  866        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  867            return Task::ready(Err(anyhow!(
  868                "cannot deserialize {}, descriptor not found",
  869                item_kind
  870            )));
  871        };
  872
  873        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  874    }
  875
  876    fn cleanup(
  877        item_kind: &str,
  878        workspace_id: WorkspaceId,
  879        loaded_items: Vec<ItemId>,
  880        window: &mut Window,
  881        cx: &mut App,
  882    ) -> Task<Result<()>> {
  883        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  884            return Task::ready(Err(anyhow!(
  885                "cannot cleanup {}, descriptor not found",
  886                item_kind
  887            )));
  888        };
  889
  890        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  891    }
  892
  893    fn view_to_serializable_item_handle(
  894        view: AnyView,
  895        cx: &App,
  896    ) -> Option<Box<dyn SerializableItemHandle>> {
  897        let this = cx.try_global::<Self>()?;
  898        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  899        Some((descriptor.view_to_serializable_item)(view))
  900    }
  901
  902    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  903        let this = cx.try_global::<Self>()?;
  904        this.descriptors_by_kind.get(item_kind).copied()
  905    }
  906}
  907
  908pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  909    let serialized_item_kind = I::serialized_item_kind();
  910
  911    let registry = cx.default_global::<SerializableItemRegistry>();
  912    let descriptor = SerializableItemDescriptor {
  913        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  914            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  915            cx.foreground_executor()
  916                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  917        },
  918        cleanup: |workspace_id, loaded_items, window, cx| {
  919            I::cleanup(workspace_id, loaded_items, window, cx)
  920        },
  921        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  922    };
  923    registry
  924        .descriptors_by_kind
  925        .insert(Arc::from(serialized_item_kind), descriptor);
  926    registry
  927        .descriptors_by_type
  928        .insert(TypeId::of::<I>(), descriptor);
  929}
  930
  931pub struct AppState {
  932    pub languages: Arc<LanguageRegistry>,
  933    pub client: Arc<Client>,
  934    pub user_store: Entity<UserStore>,
  935    pub workspace_store: Entity<WorkspaceStore>,
  936    pub fs: Arc<dyn fs::Fs>,
  937    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  938    pub node_runtime: NodeRuntime,
  939    pub session: Entity<AppSession>,
  940}
  941
  942struct GlobalAppState(Weak<AppState>);
  943
  944impl Global for GlobalAppState {}
  945
  946pub struct WorkspaceStore {
  947    workspaces: HashSet<WindowHandle<Workspace>>,
  948    client: Arc<Client>,
  949    _subscriptions: Vec<client::Subscription>,
  950}
  951
  952#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  953pub enum CollaboratorId {
  954    PeerId(PeerId),
  955    Agent,
  956}
  957
  958impl From<PeerId> for CollaboratorId {
  959    fn from(peer_id: PeerId) -> Self {
  960        CollaboratorId::PeerId(peer_id)
  961    }
  962}
  963
  964impl From<&PeerId> for CollaboratorId {
  965    fn from(peer_id: &PeerId) -> Self {
  966        CollaboratorId::PeerId(*peer_id)
  967    }
  968}
  969
  970#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  971struct Follower {
  972    project_id: Option<u64>,
  973    peer_id: PeerId,
  974}
  975
  976impl AppState {
  977    #[track_caller]
  978    pub fn global(cx: &App) -> Weak<Self> {
  979        cx.global::<GlobalAppState>().0.clone()
  980    }
  981    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  982        cx.try_global::<GlobalAppState>()
  983            .map(|state| state.0.clone())
  984    }
  985    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  986        cx.set_global(GlobalAppState(state));
  987    }
  988
  989    #[cfg(any(test, feature = "test-support"))]
  990    pub fn test(cx: &mut App) -> Arc<Self> {
  991        use fs::Fs;
  992        use node_runtime::NodeRuntime;
  993        use session::Session;
  994        use settings::SettingsStore;
  995
  996        if !cx.has_global::<SettingsStore>() {
  997            let settings_store = SettingsStore::test(cx);
  998            cx.set_global(settings_store);
  999        }
 1000
 1001        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1002        <dyn Fs>::set_global(fs.clone(), cx);
 1003        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1004        let clock = Arc::new(clock::FakeSystemClock::new());
 1005        let http_client = http_client::FakeHttpClient::with_404_response();
 1006        let client = Client::new(clock, http_client, cx);
 1007        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1008        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1009        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1010
 1011        theme::init(theme::LoadThemes::JustBase, cx);
 1012        client::init(&client, cx);
 1013
 1014        Arc::new(Self {
 1015            client,
 1016            fs,
 1017            languages,
 1018            user_store,
 1019            workspace_store,
 1020            node_runtime: NodeRuntime::unavailable(),
 1021            build_window_options: |_, _| Default::default(),
 1022            session,
 1023        })
 1024    }
 1025}
 1026
 1027struct DelayedDebouncedEditAction {
 1028    task: Option<Task<()>>,
 1029    cancel_channel: Option<oneshot::Sender<()>>,
 1030}
 1031
 1032impl DelayedDebouncedEditAction {
 1033    fn new() -> DelayedDebouncedEditAction {
 1034        DelayedDebouncedEditAction {
 1035            task: None,
 1036            cancel_channel: None,
 1037        }
 1038    }
 1039
 1040    fn fire_new<F>(
 1041        &mut self,
 1042        delay: Duration,
 1043        window: &mut Window,
 1044        cx: &mut Context<Workspace>,
 1045        func: F,
 1046    ) where
 1047        F: 'static
 1048            + Send
 1049            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1050    {
 1051        if let Some(channel) = self.cancel_channel.take() {
 1052            _ = channel.send(());
 1053        }
 1054
 1055        let (sender, mut receiver) = oneshot::channel::<()>();
 1056        self.cancel_channel = Some(sender);
 1057
 1058        let previous_task = self.task.take();
 1059        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1060            let mut timer = cx.background_executor().timer(delay).fuse();
 1061            if let Some(previous_task) = previous_task {
 1062                previous_task.await;
 1063            }
 1064
 1065            futures::select_biased! {
 1066                _ = receiver => return,
 1067                    _ = timer => {}
 1068            }
 1069
 1070            if let Some(result) = workspace
 1071                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1072                .log_err()
 1073            {
 1074                result.await.log_err();
 1075            }
 1076        }));
 1077    }
 1078}
 1079
 1080pub enum Event {
 1081    PaneAdded(Entity<Pane>),
 1082    PaneRemoved,
 1083    ItemAdded {
 1084        item: Box<dyn ItemHandle>,
 1085    },
 1086    ActiveItemChanged,
 1087    ItemRemoved {
 1088        item_id: EntityId,
 1089    },
 1090    UserSavedItem {
 1091        pane: WeakEntity<Pane>,
 1092        item: Box<dyn WeakItemHandle>,
 1093        save_intent: SaveIntent,
 1094    },
 1095    ContactRequestedJoin(u64),
 1096    WorkspaceCreated(WeakEntity<Workspace>),
 1097    OpenBundledFile {
 1098        text: Cow<'static, str>,
 1099        title: &'static str,
 1100        language: &'static str,
 1101    },
 1102    ZoomChanged,
 1103    ModalOpened,
 1104}
 1105
 1106#[derive(Debug)]
 1107pub enum OpenVisible {
 1108    All,
 1109    None,
 1110    OnlyFiles,
 1111    OnlyDirectories,
 1112}
 1113
 1114enum WorkspaceLocation {
 1115    // Valid local paths or SSH project to serialize
 1116    Location(SerializedWorkspaceLocation, PathList),
 1117    // No valid location found hence clear session id
 1118    DetachFromSession,
 1119    // No valid location found to serialize
 1120    None,
 1121}
 1122
 1123type PromptForNewPath = Box<
 1124    dyn Fn(
 1125        &mut Workspace,
 1126        DirectoryLister,
 1127        &mut Window,
 1128        &mut Context<Workspace>,
 1129    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1130>;
 1131
 1132type PromptForOpenPath = Box<
 1133    dyn Fn(
 1134        &mut Workspace,
 1135        DirectoryLister,
 1136        &mut Window,
 1137        &mut Context<Workspace>,
 1138    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1139>;
 1140
 1141#[derive(Default)]
 1142struct DispatchingKeystrokes {
 1143    dispatched: HashSet<Vec<Keystroke>>,
 1144    queue: VecDeque<Keystroke>,
 1145    task: Option<Shared<Task<()>>>,
 1146}
 1147
 1148/// Collects everything project-related for a certain window opened.
 1149/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1150///
 1151/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1152/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1153/// that can be used to register a global action to be triggered from any place in the window.
 1154pub struct Workspace {
 1155    weak_self: WeakEntity<Self>,
 1156    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1157    zoomed: Option<AnyWeakView>,
 1158    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1159    zoomed_position: Option<DockPosition>,
 1160    center: PaneGroup,
 1161    left_dock: Entity<Dock>,
 1162    bottom_dock: Entity<Dock>,
 1163    right_dock: Entity<Dock>,
 1164    panes: Vec<Entity<Pane>>,
 1165    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1166    active_pane: Entity<Pane>,
 1167    last_active_center_pane: Option<WeakEntity<Pane>>,
 1168    last_active_view_id: Option<proto::ViewId>,
 1169    status_bar: Entity<StatusBar>,
 1170    modal_layer: Entity<ModalLayer>,
 1171    toast_layer: Entity<ToastLayer>,
 1172    titlebar_item: Option<AnyView>,
 1173    notifications: Notifications,
 1174    suppressed_notifications: HashSet<NotificationId>,
 1175    project: Entity<Project>,
 1176    follower_states: HashMap<CollaboratorId, FollowerState>,
 1177    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1178    window_edited: bool,
 1179    last_window_title: Option<String>,
 1180    dirty_items: HashMap<EntityId, Subscription>,
 1181    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1182    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1183    database_id: Option<WorkspaceId>,
 1184    app_state: Arc<AppState>,
 1185    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1186    _subscriptions: Vec<Subscription>,
 1187    _apply_leader_updates: Task<Result<()>>,
 1188    _observe_current_user: Task<Result<()>>,
 1189    _schedule_serialize_workspace: Option<Task<()>>,
 1190    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1191    _schedule_serialize_worktree_trust: Task<()>,
 1192    pane_history_timestamp: Arc<AtomicUsize>,
 1193    bounds: Bounds<Pixels>,
 1194    pub centered_layout: bool,
 1195    bounds_save_task_queued: Option<Task<()>>,
 1196    on_prompt_for_new_path: Option<PromptForNewPath>,
 1197    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1198    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1199    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1200    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1201    _items_serializer: Task<Result<()>>,
 1202    session_id: Option<String>,
 1203    scheduled_tasks: Vec<Task<()>>,
 1204    last_open_dock_positions: Vec<DockPosition>,
 1205    removing: bool,
 1206    utility_panes: UtilityPaneState,
 1207}
 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, |workspace, 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                        let new_trusted_worktrees =
 1243                            worktrees_store.update(cx, |worktrees_store, cx| {
 1244                                worktrees_store.trusted_paths_for_serialization(cx)
 1245                            });
 1246                        let timeout = cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1247                        workspace._schedule_serialize_worktree_trust =
 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            .detach();
 1259
 1260            cx.observe_global::<SettingsStore>(|_, cx| {
 1261                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1262                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1263                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1264                            trusted_worktrees.auto_trust_all(cx);
 1265                        })
 1266                    }
 1267                }
 1268            })
 1269            .detach();
 1270        }
 1271
 1272        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1273            match event {
 1274                project::Event::RemoteIdChanged(_) => {
 1275                    this.update_window_title(window, cx);
 1276                }
 1277
 1278                project::Event::CollaboratorLeft(peer_id) => {
 1279                    this.collaborator_left(*peer_id, window, cx);
 1280                }
 1281
 1282                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1283                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1284                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1285                            trusted_worktrees.can_trust(*worktree_id, cx);
 1286                        });
 1287                    }
 1288                }
 1289
 1290                project::Event::WorktreeRemoved(_) => {
 1291                    this.update_worktree_data(window, cx);
 1292                }
 1293
 1294                project::Event::WorktreeAdded(worktree_id) => {
 1295                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1296                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1297                            trusted_worktrees.can_trust(*worktree_id, cx);
 1298                        });
 1299                    }
 1300                    this.update_worktree_data(window, cx);
 1301                }
 1302
 1303                project::Event::DisconnectedFromHost => {
 1304                    this.update_window_edited(window, cx);
 1305                    let leaders_to_unfollow =
 1306                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1307                    for leader_id in leaders_to_unfollow {
 1308                        this.unfollow(leader_id, window, cx);
 1309                    }
 1310                }
 1311
 1312                project::Event::DisconnectedFromSshRemote => {
 1313                    this.update_window_edited(window, cx);
 1314                }
 1315
 1316                project::Event::Closed => {
 1317                    window.remove_window();
 1318                }
 1319
 1320                project::Event::DeletedEntry(_, entry_id) => {
 1321                    for pane in this.panes.iter() {
 1322                        pane.update(cx, |pane, cx| {
 1323                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1324                        });
 1325                    }
 1326                }
 1327
 1328                project::Event::Toast {
 1329                    notification_id,
 1330                    message,
 1331                } => this.show_notification(
 1332                    NotificationId::named(notification_id.clone()),
 1333                    cx,
 1334                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1335                ),
 1336
 1337                project::Event::HideToast { notification_id } => {
 1338                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1339                }
 1340
 1341                project::Event::LanguageServerPrompt(request) => {
 1342                    struct LanguageServerPrompt;
 1343
 1344                    let mut hasher = DefaultHasher::new();
 1345                    request.lsp_name.as_str().hash(&mut hasher);
 1346                    let id = hasher.finish();
 1347
 1348                    this.show_notification(
 1349                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1350                        cx,
 1351                        |cx| {
 1352                            cx.new(|cx| {
 1353                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1354                            })
 1355                        },
 1356                    );
 1357                }
 1358
 1359                project::Event::AgentLocationChanged => {
 1360                    this.handle_agent_location_changed(window, cx)
 1361                }
 1362
 1363                _ => {}
 1364            }
 1365            cx.notify()
 1366        })
 1367        .detach();
 1368
 1369        cx.subscribe_in(
 1370            &project.read(cx).breakpoint_store(),
 1371            window,
 1372            |workspace, _, event, window, cx| match event {
 1373                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1374                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1375                    workspace.serialize_workspace(window, cx);
 1376                }
 1377                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1378            },
 1379        )
 1380        .detach();
 1381        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1382            cx.subscribe_in(
 1383                &toolchain_store,
 1384                window,
 1385                |workspace, _, event, window, cx| match event {
 1386                    ToolchainStoreEvent::CustomToolchainsModified => {
 1387                        workspace.serialize_workspace(window, cx);
 1388                    }
 1389                    _ => {}
 1390                },
 1391            )
 1392            .detach();
 1393        }
 1394
 1395        cx.on_focus_lost(window, |this, window, cx| {
 1396            let focus_handle = this.focus_handle(cx);
 1397            window.focus(&focus_handle, cx);
 1398        })
 1399        .detach();
 1400
 1401        let weak_handle = cx.entity().downgrade();
 1402        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1403
 1404        let center_pane = cx.new(|cx| {
 1405            let mut center_pane = Pane::new(
 1406                weak_handle.clone(),
 1407                project.clone(),
 1408                pane_history_timestamp.clone(),
 1409                None,
 1410                NewFile.boxed_clone(),
 1411                true,
 1412                window,
 1413                cx,
 1414            );
 1415            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1416            center_pane
 1417        });
 1418        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1419            .detach();
 1420
 1421        window.focus(&center_pane.focus_handle(cx), cx);
 1422
 1423        cx.emit(Event::PaneAdded(center_pane.clone()));
 1424
 1425        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1426        app_state.workspace_store.update(cx, |store, _| {
 1427            store.workspaces.insert(window_handle);
 1428        });
 1429
 1430        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1431        let mut connection_status = app_state.client.status();
 1432        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1433            current_user.next().await;
 1434            connection_status.next().await;
 1435            let mut stream =
 1436                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1437
 1438            while stream.recv().await.is_some() {
 1439                this.update(cx, |_, cx| cx.notify())?;
 1440            }
 1441            anyhow::Ok(())
 1442        });
 1443
 1444        // All leader updates are enqueued and then processed in a single task, so
 1445        // that each asynchronous operation can be run in order.
 1446        let (leader_updates_tx, mut leader_updates_rx) =
 1447            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1448        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1449            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1450                Self::process_leader_update(&this, leader_id, update, cx)
 1451                    .await
 1452                    .log_err();
 1453            }
 1454
 1455            Ok(())
 1456        });
 1457
 1458        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1459        let modal_layer = cx.new(|_| ModalLayer::new());
 1460        let toast_layer = cx.new(|_| ToastLayer::new());
 1461        cx.subscribe(
 1462            &modal_layer,
 1463            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1464                cx.emit(Event::ModalOpened);
 1465            },
 1466        )
 1467        .detach();
 1468
 1469        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1470        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1471        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1472        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1473        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1474        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1475        let status_bar = cx.new(|cx| {
 1476            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1477            status_bar.add_left_item(left_dock_buttons, window, cx);
 1478            status_bar.add_right_item(right_dock_buttons, window, cx);
 1479            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1480            status_bar
 1481        });
 1482
 1483        let session_id = app_state.session.read(cx).id().to_owned();
 1484
 1485        let mut active_call = None;
 1486        if let Some(call) = ActiveCall::try_global(cx) {
 1487            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1488            active_call = Some((call, subscriptions));
 1489        }
 1490
 1491        let (serializable_items_tx, serializable_items_rx) =
 1492            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1493        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1494            Self::serialize_items(&this, serializable_items_rx, cx).await
 1495        });
 1496
 1497        let subscriptions = vec![
 1498            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1499            cx.observe_window_bounds(window, move |this, window, cx| {
 1500                if this.bounds_save_task_queued.is_some() {
 1501                    return;
 1502                }
 1503                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1504                    cx.background_executor()
 1505                        .timer(Duration::from_millis(100))
 1506                        .await;
 1507                    this.update_in(cx, |this, window, cx| {
 1508                        if let Some(display) = window.display(cx)
 1509                            && let Ok(display_uuid) = display.uuid()
 1510                        {
 1511                            let window_bounds = window.inner_window_bounds();
 1512                            let has_paths = !this.root_paths(cx).is_empty();
 1513                            if !has_paths {
 1514                                cx.background_executor()
 1515                                    .spawn(persistence::write_default_window_bounds(
 1516                                        window_bounds,
 1517                                        display_uuid,
 1518                                    ))
 1519                                    .detach_and_log_err(cx);
 1520                            }
 1521                            if let Some(database_id) = workspace_id {
 1522                                cx.background_executor()
 1523                                    .spawn(DB.set_window_open_status(
 1524                                        database_id,
 1525                                        SerializedWindowBounds(window_bounds),
 1526                                        display_uuid,
 1527                                    ))
 1528                                    .detach_and_log_err(cx);
 1529                            } else {
 1530                                cx.background_executor()
 1531                                    .spawn(persistence::write_default_window_bounds(
 1532                                        window_bounds,
 1533                                        display_uuid,
 1534                                    ))
 1535                                    .detach_and_log_err(cx);
 1536                            }
 1537                        }
 1538                        this.bounds_save_task_queued.take();
 1539                    })
 1540                    .ok();
 1541                }));
 1542                cx.notify();
 1543            }),
 1544            cx.observe_window_appearance(window, |_, window, cx| {
 1545                let window_appearance = window.appearance();
 1546
 1547                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1548
 1549                GlobalTheme::reload_theme(cx);
 1550                GlobalTheme::reload_icon_theme(cx);
 1551            }),
 1552            cx.on_release(move |this, cx| {
 1553                this.app_state.workspace_store.update(cx, move |store, _| {
 1554                    store.workspaces.remove(&window_handle);
 1555                })
 1556            }),
 1557        ];
 1558
 1559        cx.defer_in(window, move |this, window, cx| {
 1560            this.update_window_title(window, cx);
 1561            this.show_initial_notifications(cx);
 1562        });
 1563
 1564        let mut center = PaneGroup::new(center_pane.clone());
 1565        center.set_is_center(true);
 1566        center.mark_positions(cx);
 1567
 1568        Workspace {
 1569            weak_self: weak_handle.clone(),
 1570            zoomed: None,
 1571            zoomed_position: None,
 1572            previous_dock_drag_coordinates: None,
 1573            center,
 1574            panes: vec![center_pane.clone()],
 1575            panes_by_item: Default::default(),
 1576            active_pane: center_pane.clone(),
 1577            last_active_center_pane: Some(center_pane.downgrade()),
 1578            last_active_view_id: None,
 1579            status_bar,
 1580            modal_layer,
 1581            toast_layer,
 1582            titlebar_item: None,
 1583            notifications: Notifications::default(),
 1584            suppressed_notifications: HashSet::default(),
 1585            left_dock,
 1586            bottom_dock,
 1587            right_dock,
 1588            project: project.clone(),
 1589            follower_states: Default::default(),
 1590            last_leaders_by_pane: Default::default(),
 1591            dispatching_keystrokes: Default::default(),
 1592            window_edited: false,
 1593            last_window_title: None,
 1594            dirty_items: Default::default(),
 1595            active_call,
 1596            database_id: workspace_id,
 1597            app_state,
 1598            _observe_current_user,
 1599            _apply_leader_updates,
 1600            _schedule_serialize_workspace: None,
 1601            _schedule_serialize_ssh_paths: None,
 1602            _schedule_serialize_worktree_trust: Task::ready(()),
 1603            leader_updates_tx,
 1604            _subscriptions: subscriptions,
 1605            pane_history_timestamp,
 1606            workspace_actions: Default::default(),
 1607            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1608            bounds: Default::default(),
 1609            centered_layout: false,
 1610            bounds_save_task_queued: None,
 1611            on_prompt_for_new_path: None,
 1612            on_prompt_for_open_path: None,
 1613            terminal_provider: None,
 1614            debugger_provider: None,
 1615            serializable_items_tx,
 1616            _items_serializer,
 1617            session_id: Some(session_id),
 1618
 1619            scheduled_tasks: Vec::new(),
 1620            last_open_dock_positions: Vec::new(),
 1621            removing: false,
 1622            utility_panes: UtilityPaneState::default(),
 1623        }
 1624    }
 1625
 1626    pub fn new_local(
 1627        abs_paths: Vec<PathBuf>,
 1628        app_state: Arc<AppState>,
 1629        requesting_window: Option<WindowHandle<Workspace>>,
 1630        env: Option<HashMap<String, String>>,
 1631        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1632        cx: &mut App,
 1633    ) -> Task<
 1634        anyhow::Result<(
 1635            WindowHandle<Workspace>,
 1636            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1637        )>,
 1638    > {
 1639        let project_handle = Project::local(
 1640            app_state.client.clone(),
 1641            app_state.node_runtime.clone(),
 1642            app_state.user_store.clone(),
 1643            app_state.languages.clone(),
 1644            app_state.fs.clone(),
 1645            env,
 1646            true,
 1647            cx,
 1648        );
 1649
 1650        cx.spawn(async move |cx| {
 1651            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1652            for path in abs_paths.into_iter() {
 1653                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1654                    paths_to_open.push(canonical)
 1655                } else {
 1656                    paths_to_open.push(path)
 1657                }
 1658            }
 1659
 1660            let serialized_workspace =
 1661                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1662
 1663            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1664                paths_to_open = paths.ordered_paths().cloned().collect();
 1665                if !paths.is_lexicographically_ordered() {
 1666                    project_handle
 1667                        .update(cx, |project, cx| {
 1668                            project.set_worktrees_reordered(true, cx);
 1669                        })
 1670                        .log_err();
 1671                }
 1672            }
 1673
 1674            // Get project paths for all of the abs_paths
 1675            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1676                Vec::with_capacity(paths_to_open.len());
 1677
 1678            for path in paths_to_open.into_iter() {
 1679                if let Some((_, project_entry)) = cx
 1680                    .update(|cx| {
 1681                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1682                    })?
 1683                    .await
 1684                    .log_err()
 1685                {
 1686                    project_paths.push((path, Some(project_entry)));
 1687                } else {
 1688                    project_paths.push((path, None));
 1689                }
 1690            }
 1691
 1692            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1693                serialized_workspace.id
 1694            } else {
 1695                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1696            };
 1697
 1698            let toolchains = DB.toolchains(workspace_id).await?;
 1699
 1700            for (toolchain, worktree_path, path) in toolchains {
 1701                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1702                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1703                    this.find_worktree(&worktree_path, cx)
 1704                        .and_then(|(worktree, rel_path)| {
 1705                            if rel_path.is_empty() {
 1706                                Some(worktree.read(cx).id())
 1707                            } else {
 1708                                None
 1709                            }
 1710                        })
 1711                })?
 1712                else {
 1713                    // We did not find a worktree with a given path, but that's whatever.
 1714                    continue;
 1715                };
 1716                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1717                    continue;
 1718                }
 1719
 1720                project_handle
 1721                    .update(cx, |this, cx| {
 1722                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1723                    })?
 1724                    .await;
 1725            }
 1726            if let Some(workspace) = serialized_workspace.as_ref() {
 1727                project_handle.update(cx, |this, cx| {
 1728                    for (scope, toolchains) in &workspace.user_toolchains {
 1729                        for toolchain in toolchains {
 1730                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1731                        }
 1732                    }
 1733                })?;
 1734            }
 1735
 1736            let window = if let Some(window) = requesting_window {
 1737                let centered_layout = serialized_workspace
 1738                    .as_ref()
 1739                    .map(|w| w.centered_layout)
 1740                    .unwrap_or(false);
 1741
 1742                cx.update_window(window.into(), |_, window, cx| {
 1743                    window.replace_root(cx, |window, cx| {
 1744                        let mut workspace = Workspace::new(
 1745                            Some(workspace_id),
 1746                            project_handle.clone(),
 1747                            app_state.clone(),
 1748                            window,
 1749                            cx,
 1750                        );
 1751
 1752                        workspace.centered_layout = centered_layout;
 1753
 1754                        // Call init callback to add items before window renders
 1755                        if let Some(init) = init {
 1756                            init(&mut workspace, window, cx);
 1757                        }
 1758
 1759                        workspace
 1760                    });
 1761                })?;
 1762                window
 1763            } else {
 1764                let window_bounds_override = window_bounds_env_override();
 1765
 1766                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1767                    (Some(WindowBounds::Windowed(bounds)), None)
 1768                } else if let Some(workspace) = serialized_workspace.as_ref()
 1769                    && let Some(display) = workspace.display
 1770                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1771                {
 1772                    // Reopening an existing workspace - restore its saved bounds
 1773                    (Some(bounds.0), Some(display))
 1774                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1775                    // New or empty workspace - use the last known window bounds
 1776                    (Some(bounds), Some(display))
 1777                } else {
 1778                    // New window - let GPUI's default_bounds() handle cascading
 1779                    (None, None)
 1780                };
 1781
 1782                // Use the serialized workspace to construct the new window
 1783                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1784                options.window_bounds = window_bounds;
 1785                let centered_layout = serialized_workspace
 1786                    .as_ref()
 1787                    .map(|w| w.centered_layout)
 1788                    .unwrap_or(false);
 1789                cx.open_window(options, {
 1790                    let app_state = app_state.clone();
 1791                    let project_handle = project_handle.clone();
 1792                    move |window, cx| {
 1793                        cx.new(|cx| {
 1794                            let mut workspace = Workspace::new(
 1795                                Some(workspace_id),
 1796                                project_handle,
 1797                                app_state,
 1798                                window,
 1799                                cx,
 1800                            );
 1801                            workspace.centered_layout = centered_layout;
 1802
 1803                            // Call init callback to add items before window renders
 1804                            if let Some(init) = init {
 1805                                init(&mut workspace, window, cx);
 1806                            }
 1807
 1808                            workspace
 1809                        })
 1810                    }
 1811                })?
 1812            };
 1813
 1814            notify_if_database_failed(window, cx);
 1815            let opened_items = window
 1816                .update(cx, |_workspace, window, cx| {
 1817                    open_items(serialized_workspace, project_paths, window, cx)
 1818                })?
 1819                .await
 1820                .unwrap_or_default();
 1821
 1822            window
 1823                .update(cx, |workspace, window, cx| {
 1824                    window.activate_window();
 1825                    workspace.update_history(cx);
 1826                })
 1827                .log_err();
 1828            Ok((window, opened_items))
 1829        })
 1830    }
 1831
 1832    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1833        self.weak_self.clone()
 1834    }
 1835
 1836    pub fn left_dock(&self) -> &Entity<Dock> {
 1837        &self.left_dock
 1838    }
 1839
 1840    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1841        &self.bottom_dock
 1842    }
 1843
 1844    pub fn set_bottom_dock_layout(
 1845        &mut self,
 1846        layout: BottomDockLayout,
 1847        window: &mut Window,
 1848        cx: &mut Context<Self>,
 1849    ) {
 1850        let fs = self.project().read(cx).fs();
 1851        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1852            content.workspace.bottom_dock_layout = Some(layout);
 1853        });
 1854
 1855        cx.notify();
 1856        self.serialize_workspace(window, cx);
 1857    }
 1858
 1859    pub fn right_dock(&self) -> &Entity<Dock> {
 1860        &self.right_dock
 1861    }
 1862
 1863    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1864        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1865    }
 1866
 1867    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1868        match position {
 1869            DockPosition::Left => &self.left_dock,
 1870            DockPosition::Bottom => &self.bottom_dock,
 1871            DockPosition::Right => &self.right_dock,
 1872        }
 1873    }
 1874
 1875    pub fn is_edited(&self) -> bool {
 1876        self.window_edited
 1877    }
 1878
 1879    pub fn add_panel<T: Panel>(
 1880        &mut self,
 1881        panel: Entity<T>,
 1882        window: &mut Window,
 1883        cx: &mut Context<Self>,
 1884    ) {
 1885        let focus_handle = panel.panel_focus_handle(cx);
 1886        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1887            .detach();
 1888
 1889        let dock_position = panel.position(window, cx);
 1890        let dock = self.dock_at_position(dock_position);
 1891
 1892        dock.update(cx, |dock, cx| {
 1893            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1894        });
 1895    }
 1896
 1897    pub fn remove_panel<T: Panel>(
 1898        &mut self,
 1899        panel: &Entity<T>,
 1900        window: &mut Window,
 1901        cx: &mut Context<Self>,
 1902    ) {
 1903        let mut found_in_dock = None;
 1904        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1905            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1906
 1907            if found {
 1908                found_in_dock = Some(dock.clone());
 1909            }
 1910        }
 1911        if let Some(found_in_dock) = found_in_dock {
 1912            let position = found_in_dock.read(cx).position();
 1913            let slot = utility_slot_for_dock_position(position);
 1914            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1915        }
 1916    }
 1917
 1918    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1919        &self.status_bar
 1920    }
 1921
 1922    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1923        StatusBarSettings::get_global(cx).show
 1924    }
 1925
 1926    pub fn app_state(&self) -> &Arc<AppState> {
 1927        &self.app_state
 1928    }
 1929
 1930    pub fn user_store(&self) -> &Entity<UserStore> {
 1931        &self.app_state.user_store
 1932    }
 1933
 1934    pub fn project(&self) -> &Entity<Project> {
 1935        &self.project
 1936    }
 1937
 1938    pub fn path_style(&self, cx: &App) -> PathStyle {
 1939        self.project.read(cx).path_style(cx)
 1940    }
 1941
 1942    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1943        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1944
 1945        for pane_handle in &self.panes {
 1946            let pane = pane_handle.read(cx);
 1947
 1948            for entry in pane.activation_history() {
 1949                history.insert(
 1950                    entry.entity_id,
 1951                    history
 1952                        .get(&entry.entity_id)
 1953                        .cloned()
 1954                        .unwrap_or(0)
 1955                        .max(entry.timestamp),
 1956                );
 1957            }
 1958        }
 1959
 1960        history
 1961    }
 1962
 1963    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1964        let mut recent_item: Option<Entity<T>> = None;
 1965        let mut recent_timestamp = 0;
 1966        for pane_handle in &self.panes {
 1967            let pane = pane_handle.read(cx);
 1968            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1969                pane.items().map(|item| (item.item_id(), item)).collect();
 1970            for entry in pane.activation_history() {
 1971                if entry.timestamp > recent_timestamp
 1972                    && let Some(&item) = item_map.get(&entry.entity_id)
 1973                    && let Some(typed_item) = item.act_as::<T>(cx)
 1974                {
 1975                    recent_timestamp = entry.timestamp;
 1976                    recent_item = Some(typed_item);
 1977                }
 1978            }
 1979        }
 1980        recent_item
 1981    }
 1982
 1983    pub fn recent_navigation_history_iter(
 1984        &self,
 1985        cx: &App,
 1986    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1987        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1988        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1989
 1990        for pane in &self.panes {
 1991            let pane = pane.read(cx);
 1992
 1993            pane.nav_history()
 1994                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1995                    if let Some(fs_path) = &fs_path {
 1996                        abs_paths_opened
 1997                            .entry(fs_path.clone())
 1998                            .or_default()
 1999                            .insert(project_path.clone());
 2000                    }
 2001                    let timestamp = entry.timestamp;
 2002                    match history.entry(project_path) {
 2003                        hash_map::Entry::Occupied(mut entry) => {
 2004                            let (_, old_timestamp) = entry.get();
 2005                            if &timestamp > old_timestamp {
 2006                                entry.insert((fs_path, timestamp));
 2007                            }
 2008                        }
 2009                        hash_map::Entry::Vacant(entry) => {
 2010                            entry.insert((fs_path, timestamp));
 2011                        }
 2012                    }
 2013                });
 2014
 2015            if let Some(item) = pane.active_item()
 2016                && let Some(project_path) = item.project_path(cx)
 2017            {
 2018                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2019
 2020                if let Some(fs_path) = &fs_path {
 2021                    abs_paths_opened
 2022                        .entry(fs_path.clone())
 2023                        .or_default()
 2024                        .insert(project_path.clone());
 2025                }
 2026
 2027                history.insert(project_path, (fs_path, std::usize::MAX));
 2028            }
 2029        }
 2030
 2031        history
 2032            .into_iter()
 2033            .sorted_by_key(|(_, (_, order))| *order)
 2034            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2035            .rev()
 2036            .filter(move |(history_path, abs_path)| {
 2037                let latest_project_path_opened = abs_path
 2038                    .as_ref()
 2039                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2040                    .and_then(|project_paths| {
 2041                        project_paths
 2042                            .iter()
 2043                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2044                    });
 2045
 2046                latest_project_path_opened.is_none_or(|path| path == history_path)
 2047            })
 2048    }
 2049
 2050    pub fn recent_navigation_history(
 2051        &self,
 2052        limit: Option<usize>,
 2053        cx: &App,
 2054    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2055        self.recent_navigation_history_iter(cx)
 2056            .take(limit.unwrap_or(usize::MAX))
 2057            .collect()
 2058    }
 2059
 2060    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2061        for pane in &self.panes {
 2062            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2063        }
 2064    }
 2065
 2066    fn navigate_history(
 2067        &mut self,
 2068        pane: WeakEntity<Pane>,
 2069        mode: NavigationMode,
 2070        window: &mut Window,
 2071        cx: &mut Context<Workspace>,
 2072    ) -> Task<Result<()>> {
 2073        let to_load = if let Some(pane) = pane.upgrade() {
 2074            pane.update(cx, |pane, cx| {
 2075                window.focus(&pane.focus_handle(cx), cx);
 2076                loop {
 2077                    // Retrieve the weak item handle from the history.
 2078                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2079
 2080                    // If the item is still present in this pane, then activate it.
 2081                    if let Some(index) = entry
 2082                        .item
 2083                        .upgrade()
 2084                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2085                    {
 2086                        let prev_active_item_index = pane.active_item_index();
 2087                        pane.nav_history_mut().set_mode(mode);
 2088                        pane.activate_item(index, true, true, window, cx);
 2089                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2090
 2091                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2092                        if let Some(data) = entry.data {
 2093                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2094                        }
 2095
 2096                        if navigated {
 2097                            break None;
 2098                        }
 2099                    } else {
 2100                        // If the item is no longer present in this pane, then retrieve its
 2101                        // path info in order to reopen it.
 2102                        break pane
 2103                            .nav_history()
 2104                            .path_for_item(entry.item.id())
 2105                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2106                    }
 2107                }
 2108            })
 2109        } else {
 2110            None
 2111        };
 2112
 2113        if let Some((project_path, abs_path, entry)) = to_load {
 2114            // If the item was no longer present, then load it again from its previous path, first try the local path
 2115            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2116
 2117            cx.spawn_in(window, async move  |workspace, cx| {
 2118                let open_by_project_path = open_by_project_path.await;
 2119                let mut navigated = false;
 2120                match open_by_project_path
 2121                    .with_context(|| format!("Navigating to {project_path:?}"))
 2122                {
 2123                    Ok((project_entry_id, build_item)) => {
 2124                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2125                            pane.nav_history_mut().set_mode(mode);
 2126                            pane.active_item().map(|p| p.item_id())
 2127                        })?;
 2128
 2129                        pane.update_in(cx, |pane, window, cx| {
 2130                            let item = pane.open_item(
 2131                                project_entry_id,
 2132                                project_path,
 2133                                true,
 2134                                entry.is_preview,
 2135                                true,
 2136                                None,
 2137                                window, cx,
 2138                                build_item,
 2139                            );
 2140                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2141                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2142                            if let Some(data) = entry.data {
 2143                                navigated |= item.navigate(data, window, cx);
 2144                            }
 2145                        })?;
 2146                    }
 2147                    Err(open_by_project_path_e) => {
 2148                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2149                        // and its worktree is now dropped
 2150                        if let Some(abs_path) = abs_path {
 2151                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2152                                pane.nav_history_mut().set_mode(mode);
 2153                                pane.active_item().map(|p| p.item_id())
 2154                            })?;
 2155                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2156                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2157                            })?;
 2158                            match open_by_abs_path
 2159                                .await
 2160                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2161                            {
 2162                                Ok(item) => {
 2163                                    pane.update_in(cx, |pane, window, cx| {
 2164                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2165                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2166                                        if let Some(data) = entry.data {
 2167                                            navigated |= item.navigate(data, window, cx);
 2168                                        }
 2169                                    })?;
 2170                                }
 2171                                Err(open_by_abs_path_e) => {
 2172                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2173                                }
 2174                            }
 2175                        }
 2176                    }
 2177                }
 2178
 2179                if !navigated {
 2180                    workspace
 2181                        .update_in(cx, |workspace, window, cx| {
 2182                            Self::navigate_history(workspace, pane, mode, window, cx)
 2183                        })?
 2184                        .await?;
 2185                }
 2186
 2187                Ok(())
 2188            })
 2189        } else {
 2190            Task::ready(Ok(()))
 2191        }
 2192    }
 2193
 2194    pub fn go_back(
 2195        &mut self,
 2196        pane: WeakEntity<Pane>,
 2197        window: &mut Window,
 2198        cx: &mut Context<Workspace>,
 2199    ) -> Task<Result<()>> {
 2200        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2201    }
 2202
 2203    pub fn go_forward(
 2204        &mut self,
 2205        pane: WeakEntity<Pane>,
 2206        window: &mut Window,
 2207        cx: &mut Context<Workspace>,
 2208    ) -> Task<Result<()>> {
 2209        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2210    }
 2211
 2212    pub fn reopen_closed_item(
 2213        &mut self,
 2214        window: &mut Window,
 2215        cx: &mut Context<Workspace>,
 2216    ) -> Task<Result<()>> {
 2217        self.navigate_history(
 2218            self.active_pane().downgrade(),
 2219            NavigationMode::ReopeningClosedItem,
 2220            window,
 2221            cx,
 2222        )
 2223    }
 2224
 2225    pub fn client(&self) -> &Arc<Client> {
 2226        &self.app_state.client
 2227    }
 2228
 2229    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2230        self.titlebar_item = Some(item);
 2231        cx.notify();
 2232    }
 2233
 2234    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2235        self.on_prompt_for_new_path = Some(prompt)
 2236    }
 2237
 2238    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2239        self.on_prompt_for_open_path = Some(prompt)
 2240    }
 2241
 2242    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2243        self.terminal_provider = Some(Box::new(provider));
 2244    }
 2245
 2246    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2247        self.debugger_provider = Some(Arc::new(provider));
 2248    }
 2249
 2250    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2251        self.debugger_provider.clone()
 2252    }
 2253
 2254    pub fn prompt_for_open_path(
 2255        &mut self,
 2256        path_prompt_options: PathPromptOptions,
 2257        lister: DirectoryLister,
 2258        window: &mut Window,
 2259        cx: &mut Context<Self>,
 2260    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2261        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2262            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2263            let rx = prompt(self, lister, window, cx);
 2264            self.on_prompt_for_open_path = Some(prompt);
 2265            rx
 2266        } else {
 2267            let (tx, rx) = oneshot::channel();
 2268            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2269
 2270            cx.spawn_in(window, async move |workspace, cx| {
 2271                let Ok(result) = abs_path.await else {
 2272                    return Ok(());
 2273                };
 2274
 2275                match result {
 2276                    Ok(result) => {
 2277                        tx.send(result).ok();
 2278                    }
 2279                    Err(err) => {
 2280                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2281                            workspace.show_portal_error(err.to_string(), cx);
 2282                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2283                            let rx = prompt(workspace, lister, window, cx);
 2284                            workspace.on_prompt_for_open_path = Some(prompt);
 2285                            rx
 2286                        })?;
 2287                        if let Ok(path) = rx.await {
 2288                            tx.send(path).ok();
 2289                        }
 2290                    }
 2291                };
 2292                anyhow::Ok(())
 2293            })
 2294            .detach();
 2295
 2296            rx
 2297        }
 2298    }
 2299
 2300    pub fn prompt_for_new_path(
 2301        &mut self,
 2302        lister: DirectoryLister,
 2303        suggested_name: Option<String>,
 2304        window: &mut Window,
 2305        cx: &mut Context<Self>,
 2306    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2307        if self.project.read(cx).is_via_collab()
 2308            || self.project.read(cx).is_via_remote_server()
 2309            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2310        {
 2311            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2312            let rx = prompt(self, lister, window, cx);
 2313            self.on_prompt_for_new_path = Some(prompt);
 2314            return rx;
 2315        }
 2316
 2317        let (tx, rx) = oneshot::channel();
 2318        cx.spawn_in(window, async move |workspace, cx| {
 2319            let abs_path = workspace.update(cx, |workspace, cx| {
 2320                let relative_to = workspace
 2321                    .most_recent_active_path(cx)
 2322                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2323                    .or_else(|| {
 2324                        let project = workspace.project.read(cx);
 2325                        project.visible_worktrees(cx).find_map(|worktree| {
 2326                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2327                        })
 2328                    })
 2329                    .or_else(std::env::home_dir)
 2330                    .unwrap_or_else(|| PathBuf::from(""));
 2331                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2332            })?;
 2333            let abs_path = match abs_path.await? {
 2334                Ok(path) => path,
 2335                Err(err) => {
 2336                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2337                        workspace.show_portal_error(err.to_string(), cx);
 2338
 2339                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2340                        let rx = prompt(workspace, lister, window, cx);
 2341                        workspace.on_prompt_for_new_path = Some(prompt);
 2342                        rx
 2343                    })?;
 2344                    if let Ok(path) = rx.await {
 2345                        tx.send(path).ok();
 2346                    }
 2347                    return anyhow::Ok(());
 2348                }
 2349            };
 2350
 2351            tx.send(abs_path.map(|path| vec![path])).ok();
 2352            anyhow::Ok(())
 2353        })
 2354        .detach();
 2355
 2356        rx
 2357    }
 2358
 2359    pub fn titlebar_item(&self) -> Option<AnyView> {
 2360        self.titlebar_item.clone()
 2361    }
 2362
 2363    /// Call the given callback with a workspace whose project is local.
 2364    ///
 2365    /// If the given workspace has a local project, then it will be passed
 2366    /// to the callback. Otherwise, a new empty window will be created.
 2367    pub fn with_local_workspace<T, F>(
 2368        &mut self,
 2369        window: &mut Window,
 2370        cx: &mut Context<Self>,
 2371        callback: F,
 2372    ) -> Task<Result<T>>
 2373    where
 2374        T: 'static,
 2375        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2376    {
 2377        if self.project.read(cx).is_local() {
 2378            Task::ready(Ok(callback(self, window, cx)))
 2379        } else {
 2380            let env = self.project.read(cx).cli_environment(cx);
 2381            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2382            cx.spawn_in(window, async move |_vh, cx| {
 2383                let (workspace, _) = task.await?;
 2384                workspace.update(cx, callback)
 2385            })
 2386        }
 2387    }
 2388
 2389    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2390        self.project.read(cx).worktrees(cx)
 2391    }
 2392
 2393    pub fn visible_worktrees<'a>(
 2394        &self,
 2395        cx: &'a App,
 2396    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2397        self.project.read(cx).visible_worktrees(cx)
 2398    }
 2399
 2400    #[cfg(any(test, feature = "test-support"))]
 2401    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2402        let futures = self
 2403            .worktrees(cx)
 2404            .filter_map(|worktree| worktree.read(cx).as_local())
 2405            .map(|worktree| worktree.scan_complete())
 2406            .collect::<Vec<_>>();
 2407        async move {
 2408            for future in futures {
 2409                future.await;
 2410            }
 2411        }
 2412    }
 2413
 2414    pub fn close_global(cx: &mut App) {
 2415        cx.defer(|cx| {
 2416            cx.windows().iter().find(|window| {
 2417                window
 2418                    .update(cx, |_, window, _| {
 2419                        if window.is_window_active() {
 2420                            //This can only get called when the window's project connection has been lost
 2421                            //so we don't need to prompt the user for anything and instead just close the window
 2422                            window.remove_window();
 2423                            true
 2424                        } else {
 2425                            false
 2426                        }
 2427                    })
 2428                    .unwrap_or(false)
 2429            });
 2430        });
 2431    }
 2432
 2433    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2434        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2435        cx.spawn_in(window, async move |_, cx| {
 2436            if prepare.await? {
 2437                cx.update(|window, _cx| window.remove_window())?;
 2438            }
 2439            anyhow::Ok(())
 2440        })
 2441        .detach_and_log_err(cx)
 2442    }
 2443
 2444    pub fn move_focused_panel_to_next_position(
 2445        &mut self,
 2446        _: &MoveFocusedPanelToNextPosition,
 2447        window: &mut Window,
 2448        cx: &mut Context<Self>,
 2449    ) {
 2450        let docks = self.all_docks();
 2451        let active_dock = docks
 2452            .into_iter()
 2453            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2454
 2455        if let Some(dock) = active_dock {
 2456            dock.update(cx, |dock, cx| {
 2457                let active_panel = dock
 2458                    .active_panel()
 2459                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2460
 2461                if let Some(panel) = active_panel {
 2462                    panel.move_to_next_position(window, cx);
 2463                }
 2464            })
 2465        }
 2466    }
 2467
 2468    pub fn prepare_to_close(
 2469        &mut self,
 2470        close_intent: CloseIntent,
 2471        window: &mut Window,
 2472        cx: &mut Context<Self>,
 2473    ) -> Task<Result<bool>> {
 2474        let active_call = self.active_call().cloned();
 2475
 2476        cx.spawn_in(window, async move |this, cx| {
 2477            this.update(cx, |this, _| {
 2478                if close_intent == CloseIntent::CloseWindow {
 2479                    this.removing = true;
 2480                }
 2481            })?;
 2482
 2483            let workspace_count = cx.update(|_window, cx| {
 2484                cx.windows()
 2485                    .iter()
 2486                    .filter(|window| window.downcast::<Workspace>().is_some())
 2487                    .count()
 2488            })?;
 2489
 2490            #[cfg(target_os = "macos")]
 2491            let save_last_workspace = false;
 2492
 2493            // On Linux and Windows, closing the last window should restore the last workspace.
 2494            #[cfg(not(target_os = "macos"))]
 2495            let save_last_workspace = {
 2496                let remaining_workspaces = cx.update(|_window, cx| {
 2497                    cx.windows()
 2498                        .iter()
 2499                        .filter_map(|window| window.downcast::<Workspace>())
 2500                        .filter_map(|workspace| {
 2501                            workspace
 2502                                .update(cx, |workspace, _, _| workspace.removing)
 2503                                .ok()
 2504                        })
 2505                        .filter(|removing| !removing)
 2506                        .count()
 2507                })?;
 2508
 2509                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2510            };
 2511
 2512            if let Some(active_call) = active_call
 2513                && workspace_count == 1
 2514                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2515            {
 2516                if close_intent == CloseIntent::CloseWindow {
 2517                    let answer = cx.update(|window, cx| {
 2518                        window.prompt(
 2519                            PromptLevel::Warning,
 2520                            "Do you want to leave the current call?",
 2521                            None,
 2522                            &["Close window and hang up", "Cancel"],
 2523                            cx,
 2524                        )
 2525                    })?;
 2526
 2527                    if answer.await.log_err() == Some(1) {
 2528                        return anyhow::Ok(false);
 2529                    } else {
 2530                        active_call
 2531                            .update(cx, |call, cx| call.hang_up(cx))?
 2532                            .await
 2533                            .log_err();
 2534                    }
 2535                }
 2536                if close_intent == CloseIntent::ReplaceWindow {
 2537                    _ = active_call.update(cx, |this, cx| {
 2538                        let workspace = cx
 2539                            .windows()
 2540                            .iter()
 2541                            .filter_map(|window| window.downcast::<Workspace>())
 2542                            .next()
 2543                            .unwrap();
 2544                        let project = workspace.read(cx)?.project.clone();
 2545                        if project.read(cx).is_shared() {
 2546                            this.unshare_project(project, cx)?;
 2547                        }
 2548                        Ok::<_, anyhow::Error>(())
 2549                    })?;
 2550                }
 2551            }
 2552
 2553            let save_result = this
 2554                .update_in(cx, |this, window, cx| {
 2555                    this.save_all_internal(SaveIntent::Close, window, cx)
 2556                })?
 2557                .await;
 2558
 2559            // If we're not quitting, but closing, we remove the workspace from
 2560            // the current session.
 2561            if close_intent != CloseIntent::Quit
 2562                && !save_last_workspace
 2563                && save_result.as_ref().is_ok_and(|&res| res)
 2564            {
 2565                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2566                    .await;
 2567            }
 2568
 2569            save_result
 2570        })
 2571    }
 2572
 2573    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2574        self.save_all_internal(
 2575            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2576            window,
 2577            cx,
 2578        )
 2579        .detach_and_log_err(cx);
 2580    }
 2581
 2582    fn send_keystrokes(
 2583        &mut self,
 2584        action: &SendKeystrokes,
 2585        window: &mut Window,
 2586        cx: &mut Context<Self>,
 2587    ) {
 2588        let keystrokes: Vec<Keystroke> = action
 2589            .0
 2590            .split(' ')
 2591            .flat_map(|k| Keystroke::parse(k).log_err())
 2592            .map(|k| {
 2593                cx.keyboard_mapper()
 2594                    .map_key_equivalent(k, true)
 2595                    .inner()
 2596                    .clone()
 2597            })
 2598            .collect();
 2599        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2600    }
 2601
 2602    pub fn send_keystrokes_impl(
 2603        &mut self,
 2604        keystrokes: Vec<Keystroke>,
 2605        window: &mut Window,
 2606        cx: &mut Context<Self>,
 2607    ) -> Shared<Task<()>> {
 2608        let mut state = self.dispatching_keystrokes.borrow_mut();
 2609        if !state.dispatched.insert(keystrokes.clone()) {
 2610            cx.propagate();
 2611            return state.task.clone().unwrap();
 2612        }
 2613
 2614        state.queue.extend(keystrokes);
 2615
 2616        let keystrokes = self.dispatching_keystrokes.clone();
 2617        if state.task.is_none() {
 2618            state.task = Some(
 2619                window
 2620                    .spawn(cx, async move |cx| {
 2621                        // limit to 100 keystrokes to avoid infinite recursion.
 2622                        for _ in 0..100 {
 2623                            let mut state = keystrokes.borrow_mut();
 2624                            let Some(keystroke) = state.queue.pop_front() else {
 2625                                state.dispatched.clear();
 2626                                state.task.take();
 2627                                return;
 2628                            };
 2629                            drop(state);
 2630                            cx.update(|window, cx| {
 2631                                let focused = window.focused(cx);
 2632                                window.dispatch_keystroke(keystroke.clone(), cx);
 2633                                if window.focused(cx) != focused {
 2634                                    // dispatch_keystroke may cause the focus to change.
 2635                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2636                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2637                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2638                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2639                                    // )
 2640                                    window.draw(cx).clear();
 2641                                }
 2642                            })
 2643                            .ok();
 2644                        }
 2645
 2646                        *keystrokes.borrow_mut() = Default::default();
 2647                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2648                    })
 2649                    .shared(),
 2650            );
 2651        }
 2652        state.task.clone().unwrap()
 2653    }
 2654
 2655    fn save_all_internal(
 2656        &mut self,
 2657        mut save_intent: SaveIntent,
 2658        window: &mut Window,
 2659        cx: &mut Context<Self>,
 2660    ) -> Task<Result<bool>> {
 2661        if self.project.read(cx).is_disconnected(cx) {
 2662            return Task::ready(Ok(true));
 2663        }
 2664        let dirty_items = self
 2665            .panes
 2666            .iter()
 2667            .flat_map(|pane| {
 2668                pane.read(cx).items().filter_map(|item| {
 2669                    if item.is_dirty(cx) {
 2670                        item.tab_content_text(0, cx);
 2671                        Some((pane.downgrade(), item.boxed_clone()))
 2672                    } else {
 2673                        None
 2674                    }
 2675                })
 2676            })
 2677            .collect::<Vec<_>>();
 2678
 2679        let project = self.project.clone();
 2680        cx.spawn_in(window, async move |workspace, cx| {
 2681            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2682                let (serialize_tasks, remaining_dirty_items) =
 2683                    workspace.update_in(cx, |workspace, window, cx| {
 2684                        let mut remaining_dirty_items = Vec::new();
 2685                        let mut serialize_tasks = Vec::new();
 2686                        for (pane, item) in dirty_items {
 2687                            if let Some(task) = item
 2688                                .to_serializable_item_handle(cx)
 2689                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2690                            {
 2691                                serialize_tasks.push(task);
 2692                            } else {
 2693                                remaining_dirty_items.push((pane, item));
 2694                            }
 2695                        }
 2696                        (serialize_tasks, remaining_dirty_items)
 2697                    })?;
 2698
 2699                futures::future::try_join_all(serialize_tasks).await?;
 2700
 2701                if remaining_dirty_items.len() > 1 {
 2702                    let answer = workspace.update_in(cx, |_, window, cx| {
 2703                        let detail = Pane::file_names_for_prompt(
 2704                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2705                            cx,
 2706                        );
 2707                        window.prompt(
 2708                            PromptLevel::Warning,
 2709                            "Do you want to save all changes in the following files?",
 2710                            Some(&detail),
 2711                            &["Save all", "Discard all", "Cancel"],
 2712                            cx,
 2713                        )
 2714                    })?;
 2715                    match answer.await.log_err() {
 2716                        Some(0) => save_intent = SaveIntent::SaveAll,
 2717                        Some(1) => save_intent = SaveIntent::Skip,
 2718                        Some(2) => return Ok(false),
 2719                        _ => {}
 2720                    }
 2721                }
 2722
 2723                remaining_dirty_items
 2724            } else {
 2725                dirty_items
 2726            };
 2727
 2728            for (pane, item) in dirty_items {
 2729                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2730                    (
 2731                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2732                        item.project_entry_ids(cx),
 2733                    )
 2734                })?;
 2735                if (singleton || !project_entry_ids.is_empty())
 2736                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2737                {
 2738                    return Ok(false);
 2739                }
 2740            }
 2741            Ok(true)
 2742        })
 2743    }
 2744
 2745    pub fn open_workspace_for_paths(
 2746        &mut self,
 2747        replace_current_window: bool,
 2748        paths: Vec<PathBuf>,
 2749        window: &mut Window,
 2750        cx: &mut Context<Self>,
 2751    ) -> Task<Result<()>> {
 2752        let window_handle = window.window_handle().downcast::<Self>();
 2753        let is_remote = self.project.read(cx).is_via_collab();
 2754        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2755        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2756
 2757        let window_to_replace = if replace_current_window {
 2758            window_handle
 2759        } else if is_remote || has_worktree || has_dirty_items {
 2760            None
 2761        } else {
 2762            window_handle
 2763        };
 2764        let app_state = self.app_state.clone();
 2765
 2766        cx.spawn(async move |_, cx| {
 2767            cx.update(|cx| {
 2768                open_paths(
 2769                    &paths,
 2770                    app_state,
 2771                    OpenOptions {
 2772                        replace_window: window_to_replace,
 2773                        ..Default::default()
 2774                    },
 2775                    cx,
 2776                )
 2777            })?
 2778            .await?;
 2779            Ok(())
 2780        })
 2781    }
 2782
 2783    #[allow(clippy::type_complexity)]
 2784    pub fn open_paths(
 2785        &mut self,
 2786        mut abs_paths: Vec<PathBuf>,
 2787        options: OpenOptions,
 2788        pane: Option<WeakEntity<Pane>>,
 2789        window: &mut Window,
 2790        cx: &mut Context<Self>,
 2791    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2792        let fs = self.app_state.fs.clone();
 2793
 2794        // Sort the paths to ensure we add worktrees for parents before their children.
 2795        abs_paths.sort_unstable();
 2796        cx.spawn_in(window, async move |this, cx| {
 2797            let mut tasks = Vec::with_capacity(abs_paths.len());
 2798
 2799            for abs_path in &abs_paths {
 2800                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2801                    OpenVisible::All => Some(true),
 2802                    OpenVisible::None => Some(false),
 2803                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2804                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2805                        Some(None) => Some(true),
 2806                        None => None,
 2807                    },
 2808                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2809                        Some(Some(metadata)) => Some(metadata.is_dir),
 2810                        Some(None) => Some(false),
 2811                        None => None,
 2812                    },
 2813                };
 2814                let project_path = match visible {
 2815                    Some(visible) => match this
 2816                        .update(cx, |this, cx| {
 2817                            Workspace::project_path_for_path(
 2818                                this.project.clone(),
 2819                                abs_path,
 2820                                visible,
 2821                                cx,
 2822                            )
 2823                        })
 2824                        .log_err()
 2825                    {
 2826                        Some(project_path) => project_path.await.log_err(),
 2827                        None => None,
 2828                    },
 2829                    None => None,
 2830                };
 2831
 2832                let this = this.clone();
 2833                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2834                let fs = fs.clone();
 2835                let pane = pane.clone();
 2836                let task = cx.spawn(async move |cx| {
 2837                    let (worktree, project_path) = project_path?;
 2838                    if fs.is_dir(&abs_path).await {
 2839                        this.update(cx, |workspace, cx| {
 2840                            let worktree = worktree.read(cx);
 2841                            let worktree_abs_path = worktree.abs_path();
 2842                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2843                                worktree.root_entry()
 2844                            } else {
 2845                                abs_path
 2846                                    .strip_prefix(worktree_abs_path.as_ref())
 2847                                    .ok()
 2848                                    .and_then(|relative_path| {
 2849                                        let relative_path =
 2850                                            RelPath::new(relative_path, PathStyle::local())
 2851                                                .log_err()?;
 2852                                        worktree.entry_for_path(&relative_path)
 2853                                    })
 2854                            }
 2855                            .map(|entry| entry.id);
 2856                            if let Some(entry_id) = entry_id {
 2857                                workspace.project.update(cx, |_, cx| {
 2858                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2859                                })
 2860                            }
 2861                        })
 2862                        .ok()?;
 2863                        None
 2864                    } else {
 2865                        Some(
 2866                            this.update_in(cx, |this, window, cx| {
 2867                                this.open_path(
 2868                                    project_path,
 2869                                    pane,
 2870                                    options.focus.unwrap_or(true),
 2871                                    window,
 2872                                    cx,
 2873                                )
 2874                            })
 2875                            .ok()?
 2876                            .await,
 2877                        )
 2878                    }
 2879                });
 2880                tasks.push(task);
 2881            }
 2882
 2883            futures::future::join_all(tasks).await
 2884        })
 2885    }
 2886
 2887    pub fn open_resolved_path(
 2888        &mut self,
 2889        path: ResolvedPath,
 2890        window: &mut Window,
 2891        cx: &mut Context<Self>,
 2892    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2893        match path {
 2894            ResolvedPath::ProjectPath { project_path, .. } => {
 2895                self.open_path(project_path, None, true, window, cx)
 2896            }
 2897            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2898                PathBuf::from(path),
 2899                OpenOptions {
 2900                    visible: Some(OpenVisible::None),
 2901                    ..Default::default()
 2902                },
 2903                window,
 2904                cx,
 2905            ),
 2906        }
 2907    }
 2908
 2909    pub fn absolute_path_of_worktree(
 2910        &self,
 2911        worktree_id: WorktreeId,
 2912        cx: &mut Context<Self>,
 2913    ) -> Option<PathBuf> {
 2914        self.project
 2915            .read(cx)
 2916            .worktree_for_id(worktree_id, cx)
 2917            // TODO: use `abs_path` or `root_dir`
 2918            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2919    }
 2920
 2921    fn add_folder_to_project(
 2922        &mut self,
 2923        _: &AddFolderToProject,
 2924        window: &mut Window,
 2925        cx: &mut Context<Self>,
 2926    ) {
 2927        let project = self.project.read(cx);
 2928        if project.is_via_collab() {
 2929            self.show_error(
 2930                &anyhow!("You cannot add folders to someone else's project"),
 2931                cx,
 2932            );
 2933            return;
 2934        }
 2935        let paths = self.prompt_for_open_path(
 2936            PathPromptOptions {
 2937                files: false,
 2938                directories: true,
 2939                multiple: true,
 2940                prompt: None,
 2941            },
 2942            DirectoryLister::Project(self.project.clone()),
 2943            window,
 2944            cx,
 2945        );
 2946        cx.spawn_in(window, async move |this, cx| {
 2947            if let Some(paths) = paths.await.log_err().flatten() {
 2948                let results = this
 2949                    .update_in(cx, |this, window, cx| {
 2950                        this.open_paths(
 2951                            paths,
 2952                            OpenOptions {
 2953                                visible: Some(OpenVisible::All),
 2954                                ..Default::default()
 2955                            },
 2956                            None,
 2957                            window,
 2958                            cx,
 2959                        )
 2960                    })?
 2961                    .await;
 2962                for result in results.into_iter().flatten() {
 2963                    result.log_err();
 2964                }
 2965            }
 2966            anyhow::Ok(())
 2967        })
 2968        .detach_and_log_err(cx);
 2969    }
 2970
 2971    pub fn project_path_for_path(
 2972        project: Entity<Project>,
 2973        abs_path: &Path,
 2974        visible: bool,
 2975        cx: &mut App,
 2976    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2977        let entry = project.update(cx, |project, cx| {
 2978            project.find_or_create_worktree(abs_path, visible, cx)
 2979        });
 2980        cx.spawn(async move |cx| {
 2981            let (worktree, path) = entry.await?;
 2982            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2983            Ok((
 2984                worktree,
 2985                ProjectPath {
 2986                    worktree_id,
 2987                    path: path,
 2988                },
 2989            ))
 2990        })
 2991    }
 2992
 2993    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2994        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2995    }
 2996
 2997    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2998        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2999    }
 3000
 3001    pub fn items_of_type<'a, T: Item>(
 3002        &'a self,
 3003        cx: &'a App,
 3004    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3005        self.panes
 3006            .iter()
 3007            .flat_map(|pane| pane.read(cx).items_of_type())
 3008    }
 3009
 3010    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3011        self.active_pane().read(cx).active_item()
 3012    }
 3013
 3014    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3015        let item = self.active_item(cx)?;
 3016        item.to_any_view().downcast::<I>().ok()
 3017    }
 3018
 3019    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3020        self.active_item(cx).and_then(|item| item.project_path(cx))
 3021    }
 3022
 3023    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3024        self.recent_navigation_history_iter(cx)
 3025            .filter_map(|(path, abs_path)| {
 3026                let worktree = self
 3027                    .project
 3028                    .read(cx)
 3029                    .worktree_for_id(path.worktree_id, cx)?;
 3030                if worktree.read(cx).is_visible() {
 3031                    abs_path
 3032                } else {
 3033                    None
 3034                }
 3035            })
 3036            .next()
 3037    }
 3038
 3039    pub fn save_active_item(
 3040        &mut self,
 3041        save_intent: SaveIntent,
 3042        window: &mut Window,
 3043        cx: &mut App,
 3044    ) -> Task<Result<()>> {
 3045        let project = self.project.clone();
 3046        let pane = self.active_pane();
 3047        let item = pane.read(cx).active_item();
 3048        let pane = pane.downgrade();
 3049
 3050        window.spawn(cx, async move |cx| {
 3051            if let Some(item) = item {
 3052                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3053                    .await
 3054                    .map(|_| ())
 3055            } else {
 3056                Ok(())
 3057            }
 3058        })
 3059    }
 3060
 3061    pub fn close_inactive_items_and_panes(
 3062        &mut self,
 3063        action: &CloseInactiveTabsAndPanes,
 3064        window: &mut Window,
 3065        cx: &mut Context<Self>,
 3066    ) {
 3067        if let Some(task) = self.close_all_internal(
 3068            true,
 3069            action.save_intent.unwrap_or(SaveIntent::Close),
 3070            window,
 3071            cx,
 3072        ) {
 3073            task.detach_and_log_err(cx)
 3074        }
 3075    }
 3076
 3077    pub fn close_all_items_and_panes(
 3078        &mut self,
 3079        action: &CloseAllItemsAndPanes,
 3080        window: &mut Window,
 3081        cx: &mut Context<Self>,
 3082    ) {
 3083        if let Some(task) = self.close_all_internal(
 3084            false,
 3085            action.save_intent.unwrap_or(SaveIntent::Close),
 3086            window,
 3087            cx,
 3088        ) {
 3089            task.detach_and_log_err(cx)
 3090        }
 3091    }
 3092
 3093    fn close_all_internal(
 3094        &mut self,
 3095        retain_active_pane: bool,
 3096        save_intent: SaveIntent,
 3097        window: &mut Window,
 3098        cx: &mut Context<Self>,
 3099    ) -> Option<Task<Result<()>>> {
 3100        let current_pane = self.active_pane();
 3101
 3102        let mut tasks = Vec::new();
 3103
 3104        if retain_active_pane {
 3105            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3106                pane.close_other_items(
 3107                    &CloseOtherItems {
 3108                        save_intent: None,
 3109                        close_pinned: false,
 3110                    },
 3111                    None,
 3112                    window,
 3113                    cx,
 3114                )
 3115            });
 3116
 3117            tasks.push(current_pane_close);
 3118        }
 3119
 3120        for pane in self.panes() {
 3121            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3122                continue;
 3123            }
 3124
 3125            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3126                pane.close_all_items(
 3127                    &CloseAllItems {
 3128                        save_intent: Some(save_intent),
 3129                        close_pinned: false,
 3130                    },
 3131                    window,
 3132                    cx,
 3133                )
 3134            });
 3135
 3136            tasks.push(close_pane_items)
 3137        }
 3138
 3139        if tasks.is_empty() {
 3140            None
 3141        } else {
 3142            Some(cx.spawn_in(window, async move |_, _| {
 3143                for task in tasks {
 3144                    task.await?
 3145                }
 3146                Ok(())
 3147            }))
 3148        }
 3149    }
 3150
 3151    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3152        self.dock_at_position(position).read(cx).is_open()
 3153    }
 3154
 3155    pub fn toggle_dock(
 3156        &mut self,
 3157        dock_side: DockPosition,
 3158        window: &mut Window,
 3159        cx: &mut Context<Self>,
 3160    ) {
 3161        let mut focus_center = false;
 3162        let mut reveal_dock = false;
 3163
 3164        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3165        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3166        if was_visible {
 3167            self.save_open_dock_positions(cx);
 3168        }
 3169
 3170        let dock = self.dock_at_position(dock_side);
 3171        dock.update(cx, |dock, cx| {
 3172            dock.set_open(!was_visible, window, cx);
 3173
 3174            if dock.active_panel().is_none() {
 3175                let Some(panel_ix) = dock
 3176                    .first_enabled_panel_idx(cx)
 3177                    .log_with_level(log::Level::Info)
 3178                else {
 3179                    return;
 3180                };
 3181                dock.activate_panel(panel_ix, window, cx);
 3182            }
 3183
 3184            if let Some(active_panel) = dock.active_panel() {
 3185                if was_visible {
 3186                    if active_panel
 3187                        .panel_focus_handle(cx)
 3188                        .contains_focused(window, cx)
 3189                    {
 3190                        focus_center = true;
 3191                    }
 3192                } else {
 3193                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3194                    window.focus(focus_handle, cx);
 3195                    reveal_dock = true;
 3196                }
 3197            }
 3198        });
 3199
 3200        if reveal_dock {
 3201            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3202        }
 3203
 3204        if focus_center {
 3205            self.active_pane
 3206                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3207        }
 3208
 3209        cx.notify();
 3210        self.serialize_workspace(window, cx);
 3211    }
 3212
 3213    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3214        self.all_docks().into_iter().find(|&dock| {
 3215            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3216        })
 3217    }
 3218
 3219    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3220        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3221            self.save_open_dock_positions(cx);
 3222            dock.update(cx, |dock, cx| {
 3223                dock.set_open(false, window, cx);
 3224            });
 3225            return true;
 3226        }
 3227        false
 3228    }
 3229
 3230    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3231        self.save_open_dock_positions(cx);
 3232        for dock in self.all_docks() {
 3233            dock.update(cx, |dock, cx| {
 3234                dock.set_open(false, window, cx);
 3235            });
 3236        }
 3237
 3238        cx.focus_self(window);
 3239        cx.notify();
 3240        self.serialize_workspace(window, cx);
 3241    }
 3242
 3243    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3244        self.all_docks()
 3245            .into_iter()
 3246            .filter_map(|dock| {
 3247                let dock_ref = dock.read(cx);
 3248                if dock_ref.is_open() {
 3249                    Some(dock_ref.position())
 3250                } else {
 3251                    None
 3252                }
 3253            })
 3254            .collect()
 3255    }
 3256
 3257    /// Saves the positions of currently open docks.
 3258    ///
 3259    /// Updates `last_open_dock_positions` with positions of all currently open
 3260    /// docks, to later be restored by the 'Toggle All Docks' action.
 3261    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3262        let open_dock_positions = self.get_open_dock_positions(cx);
 3263        if !open_dock_positions.is_empty() {
 3264            self.last_open_dock_positions = open_dock_positions;
 3265        }
 3266    }
 3267
 3268    /// Toggles all docks between open and closed states.
 3269    ///
 3270    /// If any docks are open, closes all and remembers their positions. If all
 3271    /// docks are closed, restores the last remembered dock configuration.
 3272    fn toggle_all_docks(
 3273        &mut self,
 3274        _: &ToggleAllDocks,
 3275        window: &mut Window,
 3276        cx: &mut Context<Self>,
 3277    ) {
 3278        let open_dock_positions = self.get_open_dock_positions(cx);
 3279
 3280        if !open_dock_positions.is_empty() {
 3281            self.close_all_docks(window, cx);
 3282        } else if !self.last_open_dock_positions.is_empty() {
 3283            self.restore_last_open_docks(window, cx);
 3284        }
 3285    }
 3286
 3287    /// Reopens docks from the most recently remembered configuration.
 3288    ///
 3289    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3290    /// and clears the stored positions.
 3291    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3292        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3293
 3294        for position in positions_to_open {
 3295            let dock = self.dock_at_position(position);
 3296            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3297        }
 3298
 3299        cx.focus_self(window);
 3300        cx.notify();
 3301        self.serialize_workspace(window, cx);
 3302    }
 3303
 3304    /// Transfer focus to the panel of the given type.
 3305    pub fn focus_panel<T: Panel>(
 3306        &mut self,
 3307        window: &mut Window,
 3308        cx: &mut Context<Self>,
 3309    ) -> Option<Entity<T>> {
 3310        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3311        panel.to_any().downcast().ok()
 3312    }
 3313
 3314    /// Focus the panel of the given type if it isn't already focused. If it is
 3315    /// already focused, then transfer focus back to the workspace center.
 3316    pub fn toggle_panel_focus<T: Panel>(
 3317        &mut self,
 3318        window: &mut Window,
 3319        cx: &mut Context<Self>,
 3320    ) -> bool {
 3321        let mut did_focus_panel = false;
 3322        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3323            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3324            did_focus_panel
 3325        });
 3326        did_focus_panel
 3327    }
 3328
 3329    pub fn activate_panel_for_proto_id(
 3330        &mut self,
 3331        panel_id: PanelId,
 3332        window: &mut Window,
 3333        cx: &mut Context<Self>,
 3334    ) -> Option<Arc<dyn PanelHandle>> {
 3335        let mut panel = None;
 3336        for dock in self.all_docks() {
 3337            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3338                panel = dock.update(cx, |dock, cx| {
 3339                    dock.activate_panel(panel_index, window, cx);
 3340                    dock.set_open(true, window, cx);
 3341                    dock.active_panel().cloned()
 3342                });
 3343                break;
 3344            }
 3345        }
 3346
 3347        if panel.is_some() {
 3348            cx.notify();
 3349            self.serialize_workspace(window, cx);
 3350        }
 3351
 3352        panel
 3353    }
 3354
 3355    /// Focus or unfocus the given panel type, depending on the given callback.
 3356    fn focus_or_unfocus_panel<T: Panel>(
 3357        &mut self,
 3358        window: &mut Window,
 3359        cx: &mut Context<Self>,
 3360        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3361    ) -> Option<Arc<dyn PanelHandle>> {
 3362        let mut result_panel = None;
 3363        let mut serialize = false;
 3364        for dock in self.all_docks() {
 3365            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3366                let mut focus_center = false;
 3367                let panel = dock.update(cx, |dock, cx| {
 3368                    dock.activate_panel(panel_index, window, cx);
 3369
 3370                    let panel = dock.active_panel().cloned();
 3371                    if let Some(panel) = panel.as_ref() {
 3372                        if should_focus(&**panel, window, cx) {
 3373                            dock.set_open(true, window, cx);
 3374                            panel.panel_focus_handle(cx).focus(window, cx);
 3375                        } else {
 3376                            focus_center = true;
 3377                        }
 3378                    }
 3379                    panel
 3380                });
 3381
 3382                if focus_center {
 3383                    self.active_pane
 3384                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3385                }
 3386
 3387                result_panel = panel;
 3388                serialize = true;
 3389                break;
 3390            }
 3391        }
 3392
 3393        if serialize {
 3394            self.serialize_workspace(window, cx);
 3395        }
 3396
 3397        cx.notify();
 3398        result_panel
 3399    }
 3400
 3401    /// Open the panel of the given type
 3402    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3403        for dock in self.all_docks() {
 3404            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3405                dock.update(cx, |dock, cx| {
 3406                    dock.activate_panel(panel_index, window, cx);
 3407                    dock.set_open(true, window, cx);
 3408                });
 3409            }
 3410        }
 3411    }
 3412
 3413    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3414        for dock in self.all_docks().iter() {
 3415            dock.update(cx, |dock, cx| {
 3416                if dock.panel::<T>().is_some() {
 3417                    dock.set_open(false, window, cx)
 3418                }
 3419            })
 3420        }
 3421    }
 3422
 3423    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3424        self.all_docks()
 3425            .iter()
 3426            .find_map(|dock| dock.read(cx).panel::<T>())
 3427    }
 3428
 3429    fn dismiss_zoomed_items_to_reveal(
 3430        &mut self,
 3431        dock_to_reveal: Option<DockPosition>,
 3432        window: &mut Window,
 3433        cx: &mut Context<Self>,
 3434    ) {
 3435        // If a center pane is zoomed, unzoom it.
 3436        for pane in &self.panes {
 3437            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3438                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3439            }
 3440        }
 3441
 3442        // If another dock is zoomed, hide it.
 3443        let mut focus_center = false;
 3444        for dock in self.all_docks() {
 3445            dock.update(cx, |dock, cx| {
 3446                if Some(dock.position()) != dock_to_reveal
 3447                    && let Some(panel) = dock.active_panel()
 3448                    && panel.is_zoomed(window, cx)
 3449                {
 3450                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3451                    dock.set_open(false, window, cx);
 3452                }
 3453            });
 3454        }
 3455
 3456        if focus_center {
 3457            self.active_pane
 3458                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3459        }
 3460
 3461        if self.zoomed_position != dock_to_reveal {
 3462            self.zoomed = None;
 3463            self.zoomed_position = None;
 3464            cx.emit(Event::ZoomChanged);
 3465        }
 3466
 3467        cx.notify();
 3468    }
 3469
 3470    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3471        let pane = cx.new(|cx| {
 3472            let mut pane = Pane::new(
 3473                self.weak_handle(),
 3474                self.project.clone(),
 3475                self.pane_history_timestamp.clone(),
 3476                None,
 3477                NewFile.boxed_clone(),
 3478                true,
 3479                window,
 3480                cx,
 3481            );
 3482            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3483            pane
 3484        });
 3485        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3486            .detach();
 3487        self.panes.push(pane.clone());
 3488
 3489        window.focus(&pane.focus_handle(cx), cx);
 3490
 3491        cx.emit(Event::PaneAdded(pane.clone()));
 3492        pane
 3493    }
 3494
 3495    pub fn add_item_to_center(
 3496        &mut self,
 3497        item: Box<dyn ItemHandle>,
 3498        window: &mut Window,
 3499        cx: &mut Context<Self>,
 3500    ) -> bool {
 3501        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3502            if let Some(center_pane) = center_pane.upgrade() {
 3503                center_pane.update(cx, |pane, cx| {
 3504                    pane.add_item(item, true, true, None, window, cx)
 3505                });
 3506                true
 3507            } else {
 3508                false
 3509            }
 3510        } else {
 3511            false
 3512        }
 3513    }
 3514
 3515    pub fn add_item_to_active_pane(
 3516        &mut self,
 3517        item: Box<dyn ItemHandle>,
 3518        destination_index: Option<usize>,
 3519        focus_item: bool,
 3520        window: &mut Window,
 3521        cx: &mut App,
 3522    ) {
 3523        self.add_item(
 3524            self.active_pane.clone(),
 3525            item,
 3526            destination_index,
 3527            false,
 3528            focus_item,
 3529            window,
 3530            cx,
 3531        )
 3532    }
 3533
 3534    pub fn add_item(
 3535        &mut self,
 3536        pane: Entity<Pane>,
 3537        item: Box<dyn ItemHandle>,
 3538        destination_index: Option<usize>,
 3539        activate_pane: bool,
 3540        focus_item: bool,
 3541        window: &mut Window,
 3542        cx: &mut App,
 3543    ) {
 3544        pane.update(cx, |pane, cx| {
 3545            pane.add_item(
 3546                item,
 3547                activate_pane,
 3548                focus_item,
 3549                destination_index,
 3550                window,
 3551                cx,
 3552            )
 3553        });
 3554    }
 3555
 3556    pub fn split_item(
 3557        &mut self,
 3558        split_direction: SplitDirection,
 3559        item: Box<dyn ItemHandle>,
 3560        window: &mut Window,
 3561        cx: &mut Context<Self>,
 3562    ) {
 3563        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3564        self.add_item(new_pane, item, None, true, true, window, cx);
 3565    }
 3566
 3567    pub fn open_abs_path(
 3568        &mut self,
 3569        abs_path: PathBuf,
 3570        options: OpenOptions,
 3571        window: &mut Window,
 3572        cx: &mut Context<Self>,
 3573    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3574        cx.spawn_in(window, async move |workspace, cx| {
 3575            let open_paths_task_result = workspace
 3576                .update_in(cx, |workspace, window, cx| {
 3577                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3578                })
 3579                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3580                .await;
 3581            anyhow::ensure!(
 3582                open_paths_task_result.len() == 1,
 3583                "open abs path {abs_path:?} task returned incorrect number of results"
 3584            );
 3585            match open_paths_task_result
 3586                .into_iter()
 3587                .next()
 3588                .expect("ensured single task result")
 3589            {
 3590                Some(open_result) => {
 3591                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3592                }
 3593                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3594            }
 3595        })
 3596    }
 3597
 3598    pub fn split_abs_path(
 3599        &mut self,
 3600        abs_path: PathBuf,
 3601        visible: bool,
 3602        window: &mut Window,
 3603        cx: &mut Context<Self>,
 3604    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3605        let project_path_task =
 3606            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3607        cx.spawn_in(window, async move |this, cx| {
 3608            let (_, path) = project_path_task.await?;
 3609            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3610                .await
 3611        })
 3612    }
 3613
 3614    pub fn open_path(
 3615        &mut self,
 3616        path: impl Into<ProjectPath>,
 3617        pane: Option<WeakEntity<Pane>>,
 3618        focus_item: bool,
 3619        window: &mut Window,
 3620        cx: &mut App,
 3621    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3622        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3623    }
 3624
 3625    pub fn open_path_preview(
 3626        &mut self,
 3627        path: impl Into<ProjectPath>,
 3628        pane: Option<WeakEntity<Pane>>,
 3629        focus_item: bool,
 3630        allow_preview: bool,
 3631        activate: bool,
 3632        window: &mut Window,
 3633        cx: &mut App,
 3634    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3635        let pane = pane.unwrap_or_else(|| {
 3636            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3637                self.panes
 3638                    .first()
 3639                    .expect("There must be an active pane")
 3640                    .downgrade()
 3641            })
 3642        });
 3643
 3644        let project_path = path.into();
 3645        let task = self.load_path(project_path.clone(), window, cx);
 3646        window.spawn(cx, async move |cx| {
 3647            let (project_entry_id, build_item) = task.await?;
 3648
 3649            pane.update_in(cx, |pane, window, cx| {
 3650                pane.open_item(
 3651                    project_entry_id,
 3652                    project_path,
 3653                    focus_item,
 3654                    allow_preview,
 3655                    activate,
 3656                    None,
 3657                    window,
 3658                    cx,
 3659                    build_item,
 3660                )
 3661            })
 3662        })
 3663    }
 3664
 3665    pub fn split_path(
 3666        &mut self,
 3667        path: impl Into<ProjectPath>,
 3668        window: &mut Window,
 3669        cx: &mut Context<Self>,
 3670    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3671        self.split_path_preview(path, false, None, window, cx)
 3672    }
 3673
 3674    pub fn split_path_preview(
 3675        &mut self,
 3676        path: impl Into<ProjectPath>,
 3677        allow_preview: bool,
 3678        split_direction: Option<SplitDirection>,
 3679        window: &mut Window,
 3680        cx: &mut Context<Self>,
 3681    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3682        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3683            self.panes
 3684                .first()
 3685                .expect("There must be an active pane")
 3686                .downgrade()
 3687        });
 3688
 3689        if let Member::Pane(center_pane) = &self.center.root
 3690            && center_pane.read(cx).items_len() == 0
 3691        {
 3692            return self.open_path(path, Some(pane), true, window, cx);
 3693        }
 3694
 3695        let project_path = path.into();
 3696        let task = self.load_path(project_path.clone(), window, cx);
 3697        cx.spawn_in(window, async move |this, cx| {
 3698            let (project_entry_id, build_item) = task.await?;
 3699            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3700                let pane = pane.upgrade()?;
 3701                let new_pane = this.split_pane(
 3702                    pane,
 3703                    split_direction.unwrap_or(SplitDirection::Right),
 3704                    window,
 3705                    cx,
 3706                );
 3707                new_pane.update(cx, |new_pane, cx| {
 3708                    Some(new_pane.open_item(
 3709                        project_entry_id,
 3710                        project_path,
 3711                        true,
 3712                        allow_preview,
 3713                        true,
 3714                        None,
 3715                        window,
 3716                        cx,
 3717                        build_item,
 3718                    ))
 3719                })
 3720            })
 3721            .map(|option| option.context("pane was dropped"))?
 3722        })
 3723    }
 3724
 3725    fn load_path(
 3726        &mut self,
 3727        path: ProjectPath,
 3728        window: &mut Window,
 3729        cx: &mut App,
 3730    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3731        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3732        registry.open_path(self.project(), &path, window, cx)
 3733    }
 3734
 3735    pub fn find_project_item<T>(
 3736        &self,
 3737        pane: &Entity<Pane>,
 3738        project_item: &Entity<T::Item>,
 3739        cx: &App,
 3740    ) -> Option<Entity<T>>
 3741    where
 3742        T: ProjectItem,
 3743    {
 3744        use project::ProjectItem as _;
 3745        let project_item = project_item.read(cx);
 3746        let entry_id = project_item.entry_id(cx);
 3747        let project_path = project_item.project_path(cx);
 3748
 3749        let mut item = None;
 3750        if let Some(entry_id) = entry_id {
 3751            item = pane.read(cx).item_for_entry(entry_id, cx);
 3752        }
 3753        if item.is_none()
 3754            && let Some(project_path) = project_path
 3755        {
 3756            item = pane.read(cx).item_for_path(project_path, cx);
 3757        }
 3758
 3759        item.and_then(|item| item.downcast::<T>())
 3760    }
 3761
 3762    pub fn is_project_item_open<T>(
 3763        &self,
 3764        pane: &Entity<Pane>,
 3765        project_item: &Entity<T::Item>,
 3766        cx: &App,
 3767    ) -> bool
 3768    where
 3769        T: ProjectItem,
 3770    {
 3771        self.find_project_item::<T>(pane, project_item, cx)
 3772            .is_some()
 3773    }
 3774
 3775    pub fn open_project_item<T>(
 3776        &mut self,
 3777        pane: Entity<Pane>,
 3778        project_item: Entity<T::Item>,
 3779        activate_pane: bool,
 3780        focus_item: bool,
 3781        keep_old_preview: bool,
 3782        allow_new_preview: bool,
 3783        window: &mut Window,
 3784        cx: &mut Context<Self>,
 3785    ) -> Entity<T>
 3786    where
 3787        T: ProjectItem,
 3788    {
 3789        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3790
 3791        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3792            if !keep_old_preview
 3793                && let Some(old_id) = old_item_id
 3794                && old_id != item.item_id()
 3795            {
 3796                // switching to a different item, so unpreview old active item
 3797                pane.update(cx, |pane, _| {
 3798                    pane.unpreview_item_if_preview(old_id);
 3799                });
 3800            }
 3801
 3802            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3803            if !allow_new_preview {
 3804                pane.update(cx, |pane, _| {
 3805                    pane.unpreview_item_if_preview(item.item_id());
 3806                });
 3807            }
 3808            return item;
 3809        }
 3810
 3811        let item = pane.update(cx, |pane, cx| {
 3812            cx.new(|cx| {
 3813                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3814            })
 3815        });
 3816        let mut destination_index = None;
 3817        pane.update(cx, |pane, cx| {
 3818            if !keep_old_preview && let Some(old_id) = old_item_id {
 3819                pane.unpreview_item_if_preview(old_id);
 3820            }
 3821            if allow_new_preview {
 3822                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3823            }
 3824        });
 3825
 3826        self.add_item(
 3827            pane,
 3828            Box::new(item.clone()),
 3829            destination_index,
 3830            activate_pane,
 3831            focus_item,
 3832            window,
 3833            cx,
 3834        );
 3835        item
 3836    }
 3837
 3838    pub fn open_shared_screen(
 3839        &mut self,
 3840        peer_id: PeerId,
 3841        window: &mut Window,
 3842        cx: &mut Context<Self>,
 3843    ) {
 3844        if let Some(shared_screen) =
 3845            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3846        {
 3847            self.active_pane.update(cx, |pane, cx| {
 3848                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3849            });
 3850        }
 3851    }
 3852
 3853    pub fn activate_item(
 3854        &mut self,
 3855        item: &dyn ItemHandle,
 3856        activate_pane: bool,
 3857        focus_item: bool,
 3858        window: &mut Window,
 3859        cx: &mut App,
 3860    ) -> bool {
 3861        let result = self.panes.iter().find_map(|pane| {
 3862            pane.read(cx)
 3863                .index_for_item(item)
 3864                .map(|ix| (pane.clone(), ix))
 3865        });
 3866        if let Some((pane, ix)) = result {
 3867            pane.update(cx, |pane, cx| {
 3868                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3869            });
 3870            true
 3871        } else {
 3872            false
 3873        }
 3874    }
 3875
 3876    fn activate_pane_at_index(
 3877        &mut self,
 3878        action: &ActivatePane,
 3879        window: &mut Window,
 3880        cx: &mut Context<Self>,
 3881    ) {
 3882        let panes = self.center.panes();
 3883        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3884            window.focus(&pane.focus_handle(cx), cx);
 3885        } else {
 3886            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3887                .detach();
 3888        }
 3889    }
 3890
 3891    fn move_item_to_pane_at_index(
 3892        &mut self,
 3893        action: &MoveItemToPane,
 3894        window: &mut Window,
 3895        cx: &mut Context<Self>,
 3896    ) {
 3897        let panes = self.center.panes();
 3898        let destination = match panes.get(action.destination) {
 3899            Some(&destination) => destination.clone(),
 3900            None => {
 3901                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3902                    return;
 3903                }
 3904                let direction = SplitDirection::Right;
 3905                let split_off_pane = self
 3906                    .find_pane_in_direction(direction, cx)
 3907                    .unwrap_or_else(|| self.active_pane.clone());
 3908                let new_pane = self.add_pane(window, cx);
 3909                if self
 3910                    .center
 3911                    .split(&split_off_pane, &new_pane, direction, cx)
 3912                    .log_err()
 3913                    .is_none()
 3914                {
 3915                    return;
 3916                };
 3917                new_pane
 3918            }
 3919        };
 3920
 3921        if action.clone {
 3922            if self
 3923                .active_pane
 3924                .read(cx)
 3925                .active_item()
 3926                .is_some_and(|item| item.can_split(cx))
 3927            {
 3928                clone_active_item(
 3929                    self.database_id(),
 3930                    &self.active_pane,
 3931                    &destination,
 3932                    action.focus,
 3933                    window,
 3934                    cx,
 3935                );
 3936                return;
 3937            }
 3938        }
 3939        move_active_item(
 3940            &self.active_pane,
 3941            &destination,
 3942            action.focus,
 3943            true,
 3944            window,
 3945            cx,
 3946        )
 3947    }
 3948
 3949    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3950        let panes = self.center.panes();
 3951        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3952            let next_ix = (ix + 1) % panes.len();
 3953            let next_pane = panes[next_ix].clone();
 3954            window.focus(&next_pane.focus_handle(cx), cx);
 3955        }
 3956    }
 3957
 3958    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3959        let panes = self.center.panes();
 3960        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3961            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3962            let prev_pane = panes[prev_ix].clone();
 3963            window.focus(&prev_pane.focus_handle(cx), cx);
 3964        }
 3965    }
 3966
 3967    pub fn activate_pane_in_direction(
 3968        &mut self,
 3969        direction: SplitDirection,
 3970        window: &mut Window,
 3971        cx: &mut App,
 3972    ) {
 3973        use ActivateInDirectionTarget as Target;
 3974        enum Origin {
 3975            LeftDock,
 3976            RightDock,
 3977            BottomDock,
 3978            Center,
 3979        }
 3980
 3981        let origin: Origin = [
 3982            (&self.left_dock, Origin::LeftDock),
 3983            (&self.right_dock, Origin::RightDock),
 3984            (&self.bottom_dock, Origin::BottomDock),
 3985        ]
 3986        .into_iter()
 3987        .find_map(|(dock, origin)| {
 3988            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3989                Some(origin)
 3990            } else {
 3991                None
 3992            }
 3993        })
 3994        .unwrap_or(Origin::Center);
 3995
 3996        let get_last_active_pane = || {
 3997            let pane = self
 3998                .last_active_center_pane
 3999                .clone()
 4000                .unwrap_or_else(|| {
 4001                    self.panes
 4002                        .first()
 4003                        .expect("There must be an active pane")
 4004                        .downgrade()
 4005                })
 4006                .upgrade()?;
 4007            (pane.read(cx).items_len() != 0).then_some(pane)
 4008        };
 4009
 4010        let try_dock =
 4011            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4012
 4013        let target = match (origin, direction) {
 4014            // We're in the center, so we first try to go to a different pane,
 4015            // otherwise try to go to a dock.
 4016            (Origin::Center, direction) => {
 4017                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4018                    Some(Target::Pane(pane))
 4019                } else {
 4020                    match direction {
 4021                        SplitDirection::Up => None,
 4022                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4023                        SplitDirection::Left => try_dock(&self.left_dock),
 4024                        SplitDirection::Right => try_dock(&self.right_dock),
 4025                    }
 4026                }
 4027            }
 4028
 4029            (Origin::LeftDock, SplitDirection::Right) => {
 4030                if let Some(last_active_pane) = get_last_active_pane() {
 4031                    Some(Target::Pane(last_active_pane))
 4032                } else {
 4033                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4034                }
 4035            }
 4036
 4037            (Origin::LeftDock, SplitDirection::Down)
 4038            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4039
 4040            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4041            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4042            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4043
 4044            (Origin::RightDock, SplitDirection::Left) => {
 4045                if let Some(last_active_pane) = get_last_active_pane() {
 4046                    Some(Target::Pane(last_active_pane))
 4047                } else {
 4048                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4049                }
 4050            }
 4051
 4052            _ => None,
 4053        };
 4054
 4055        match target {
 4056            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4057                let pane = pane.read(cx);
 4058                if let Some(item) = pane.active_item() {
 4059                    item.item_focus_handle(cx).focus(window, cx);
 4060                } else {
 4061                    log::error!(
 4062                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4063                    );
 4064                }
 4065            }
 4066            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4067                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4068                window.defer(cx, move |window, cx| {
 4069                    let dock = dock.read(cx);
 4070                    if let Some(panel) = dock.active_panel() {
 4071                        panel.panel_focus_handle(cx).focus(window, cx);
 4072                    } else {
 4073                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4074                    }
 4075                })
 4076            }
 4077            None => {}
 4078        }
 4079    }
 4080
 4081    pub fn move_item_to_pane_in_direction(
 4082        &mut self,
 4083        action: &MoveItemToPaneInDirection,
 4084        window: &mut Window,
 4085        cx: &mut Context<Self>,
 4086    ) {
 4087        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4088            Some(destination) => destination,
 4089            None => {
 4090                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4091                    return;
 4092                }
 4093                let new_pane = self.add_pane(window, cx);
 4094                if self
 4095                    .center
 4096                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4097                    .log_err()
 4098                    .is_none()
 4099                {
 4100                    return;
 4101                };
 4102                new_pane
 4103            }
 4104        };
 4105
 4106        if action.clone {
 4107            if self
 4108                .active_pane
 4109                .read(cx)
 4110                .active_item()
 4111                .is_some_and(|item| item.can_split(cx))
 4112            {
 4113                clone_active_item(
 4114                    self.database_id(),
 4115                    &self.active_pane,
 4116                    &destination,
 4117                    action.focus,
 4118                    window,
 4119                    cx,
 4120                );
 4121                return;
 4122            }
 4123        }
 4124        move_active_item(
 4125            &self.active_pane,
 4126            &destination,
 4127            action.focus,
 4128            true,
 4129            window,
 4130            cx,
 4131        );
 4132    }
 4133
 4134    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4135        self.center.bounding_box_for_pane(pane)
 4136    }
 4137
 4138    pub fn find_pane_in_direction(
 4139        &mut self,
 4140        direction: SplitDirection,
 4141        cx: &App,
 4142    ) -> Option<Entity<Pane>> {
 4143        self.center
 4144            .find_pane_in_direction(&self.active_pane, direction, cx)
 4145            .cloned()
 4146    }
 4147
 4148    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4149        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4150            self.center.swap(&self.active_pane, &to, cx);
 4151            cx.notify();
 4152        }
 4153    }
 4154
 4155    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4156        if self
 4157            .center
 4158            .move_to_border(&self.active_pane, direction, cx)
 4159            .unwrap()
 4160        {
 4161            cx.notify();
 4162        }
 4163    }
 4164
 4165    pub fn resize_pane(
 4166        &mut self,
 4167        axis: gpui::Axis,
 4168        amount: Pixels,
 4169        window: &mut Window,
 4170        cx: &mut Context<Self>,
 4171    ) {
 4172        let docks = self.all_docks();
 4173        let active_dock = docks
 4174            .into_iter()
 4175            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4176
 4177        if let Some(dock) = active_dock {
 4178            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4179                return;
 4180            };
 4181            match dock.read(cx).position() {
 4182                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4183                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4184                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4185            }
 4186        } else {
 4187            self.center
 4188                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4189        }
 4190        cx.notify();
 4191    }
 4192
 4193    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4194        self.center.reset_pane_sizes(cx);
 4195        cx.notify();
 4196    }
 4197
 4198    fn handle_pane_focused(
 4199        &mut self,
 4200        pane: Entity<Pane>,
 4201        window: &mut Window,
 4202        cx: &mut Context<Self>,
 4203    ) {
 4204        // This is explicitly hoisted out of the following check for pane identity as
 4205        // terminal panel panes are not registered as a center panes.
 4206        self.status_bar.update(cx, |status_bar, cx| {
 4207            status_bar.set_active_pane(&pane, window, cx);
 4208        });
 4209        if self.active_pane != pane {
 4210            self.set_active_pane(&pane, window, cx);
 4211        }
 4212
 4213        if self.last_active_center_pane.is_none() {
 4214            self.last_active_center_pane = Some(pane.downgrade());
 4215        }
 4216
 4217        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4218        if pane.read(cx).is_zoomed() {
 4219            self.zoomed = Some(pane.downgrade().into());
 4220        } else {
 4221            self.zoomed = None;
 4222        }
 4223        self.zoomed_position = None;
 4224        cx.emit(Event::ZoomChanged);
 4225        self.update_active_view_for_followers(window, cx);
 4226        pane.update(cx, |pane, _| {
 4227            pane.track_alternate_file_items();
 4228        });
 4229
 4230        cx.notify();
 4231    }
 4232
 4233    fn set_active_pane(
 4234        &mut self,
 4235        pane: &Entity<Pane>,
 4236        window: &mut Window,
 4237        cx: &mut Context<Self>,
 4238    ) {
 4239        self.active_pane = pane.clone();
 4240        self.active_item_path_changed(true, window, cx);
 4241        self.last_active_center_pane = Some(pane.downgrade());
 4242    }
 4243
 4244    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4245        self.update_active_view_for_followers(window, cx);
 4246    }
 4247
 4248    fn handle_pane_event(
 4249        &mut self,
 4250        pane: &Entity<Pane>,
 4251        event: &pane::Event,
 4252        window: &mut Window,
 4253        cx: &mut Context<Self>,
 4254    ) {
 4255        let mut serialize_workspace = true;
 4256        match event {
 4257            pane::Event::AddItem { item } => {
 4258                item.added_to_pane(self, pane.clone(), window, cx);
 4259                cx.emit(Event::ItemAdded {
 4260                    item: item.boxed_clone(),
 4261                });
 4262            }
 4263            pane::Event::Split {
 4264                direction,
 4265                clone_active_item,
 4266            } => {
 4267                if *clone_active_item {
 4268                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4269                        .detach();
 4270                } else {
 4271                    self.split_and_move(pane.clone(), *direction, window, cx);
 4272                }
 4273            }
 4274            pane::Event::JoinIntoNext => {
 4275                self.join_pane_into_next(pane.clone(), window, cx);
 4276            }
 4277            pane::Event::JoinAll => {
 4278                self.join_all_panes(window, cx);
 4279            }
 4280            pane::Event::Remove { focus_on_pane } => {
 4281                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4282            }
 4283            pane::Event::ActivateItem {
 4284                local,
 4285                focus_changed,
 4286            } => {
 4287                window.invalidate_character_coordinates();
 4288
 4289                pane.update(cx, |pane, _| {
 4290                    pane.track_alternate_file_items();
 4291                });
 4292                if *local {
 4293                    self.unfollow_in_pane(pane, window, cx);
 4294                }
 4295                serialize_workspace = *focus_changed || pane != self.active_pane();
 4296                if pane == self.active_pane() {
 4297                    self.active_item_path_changed(*focus_changed, window, cx);
 4298                    self.update_active_view_for_followers(window, cx);
 4299                } else if *local {
 4300                    self.set_active_pane(pane, window, cx);
 4301                }
 4302            }
 4303            pane::Event::UserSavedItem { item, save_intent } => {
 4304                cx.emit(Event::UserSavedItem {
 4305                    pane: pane.downgrade(),
 4306                    item: item.boxed_clone(),
 4307                    save_intent: *save_intent,
 4308                });
 4309                serialize_workspace = false;
 4310            }
 4311            pane::Event::ChangeItemTitle => {
 4312                if *pane == self.active_pane {
 4313                    self.active_item_path_changed(false, window, cx);
 4314                }
 4315                serialize_workspace = false;
 4316            }
 4317            pane::Event::RemovedItem { item } => {
 4318                cx.emit(Event::ActiveItemChanged);
 4319                self.update_window_edited(window, cx);
 4320                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4321                    && entry.get().entity_id() == pane.entity_id()
 4322                {
 4323                    entry.remove();
 4324                }
 4325                cx.emit(Event::ItemRemoved {
 4326                    item_id: item.item_id(),
 4327                });
 4328            }
 4329            pane::Event::Focus => {
 4330                window.invalidate_character_coordinates();
 4331                self.handle_pane_focused(pane.clone(), window, cx);
 4332            }
 4333            pane::Event::ZoomIn => {
 4334                if *pane == self.active_pane {
 4335                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4336                    if pane.read(cx).has_focus(window, cx) {
 4337                        self.zoomed = Some(pane.downgrade().into());
 4338                        self.zoomed_position = None;
 4339                        cx.emit(Event::ZoomChanged);
 4340                    }
 4341                    cx.notify();
 4342                }
 4343            }
 4344            pane::Event::ZoomOut => {
 4345                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4346                if self.zoomed_position.is_none() {
 4347                    self.zoomed = None;
 4348                    cx.emit(Event::ZoomChanged);
 4349                }
 4350                cx.notify();
 4351            }
 4352            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4353        }
 4354
 4355        if serialize_workspace {
 4356            self.serialize_workspace(window, cx);
 4357        }
 4358    }
 4359
 4360    pub fn unfollow_in_pane(
 4361        &mut self,
 4362        pane: &Entity<Pane>,
 4363        window: &mut Window,
 4364        cx: &mut Context<Workspace>,
 4365    ) -> Option<CollaboratorId> {
 4366        let leader_id = self.leader_for_pane(pane)?;
 4367        self.unfollow(leader_id, window, cx);
 4368        Some(leader_id)
 4369    }
 4370
 4371    pub fn split_pane(
 4372        &mut self,
 4373        pane_to_split: Entity<Pane>,
 4374        split_direction: SplitDirection,
 4375        window: &mut Window,
 4376        cx: &mut Context<Self>,
 4377    ) -> Entity<Pane> {
 4378        let new_pane = self.add_pane(window, cx);
 4379        self.center
 4380            .split(&pane_to_split, &new_pane, split_direction, cx)
 4381            .unwrap();
 4382        cx.notify();
 4383        new_pane
 4384    }
 4385
 4386    pub fn split_and_move(
 4387        &mut self,
 4388        pane: Entity<Pane>,
 4389        direction: SplitDirection,
 4390        window: &mut Window,
 4391        cx: &mut Context<Self>,
 4392    ) {
 4393        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4394            return;
 4395        };
 4396        let new_pane = self.add_pane(window, cx);
 4397        new_pane.update(cx, |pane, cx| {
 4398            pane.add_item(item, true, true, None, window, cx)
 4399        });
 4400        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4401        cx.notify();
 4402    }
 4403
 4404    pub fn split_and_clone(
 4405        &mut self,
 4406        pane: Entity<Pane>,
 4407        direction: SplitDirection,
 4408        window: &mut Window,
 4409        cx: &mut Context<Self>,
 4410    ) -> Task<Option<Entity<Pane>>> {
 4411        let Some(item) = pane.read(cx).active_item() else {
 4412            return Task::ready(None);
 4413        };
 4414        if !item.can_split(cx) {
 4415            return Task::ready(None);
 4416        }
 4417        let task = item.clone_on_split(self.database_id(), window, cx);
 4418        cx.spawn_in(window, async move |this, cx| {
 4419            if let Some(clone) = task.await {
 4420                this.update_in(cx, |this, window, cx| {
 4421                    let new_pane = this.add_pane(window, cx);
 4422                    new_pane.update(cx, |pane, cx| {
 4423                        pane.add_item(clone, true, true, None, window, cx)
 4424                    });
 4425                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4426                    cx.notify();
 4427                    new_pane
 4428                })
 4429                .ok()
 4430            } else {
 4431                None
 4432            }
 4433        })
 4434    }
 4435
 4436    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4437        let active_item = self.active_pane.read(cx).active_item();
 4438        for pane in &self.panes {
 4439            join_pane_into_active(&self.active_pane, pane, window, cx);
 4440        }
 4441        if let Some(active_item) = active_item {
 4442            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4443        }
 4444        cx.notify();
 4445    }
 4446
 4447    pub fn join_pane_into_next(
 4448        &mut self,
 4449        pane: Entity<Pane>,
 4450        window: &mut Window,
 4451        cx: &mut Context<Self>,
 4452    ) {
 4453        let next_pane = self
 4454            .find_pane_in_direction(SplitDirection::Right, cx)
 4455            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4456            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4457            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4458        let Some(next_pane) = next_pane else {
 4459            return;
 4460        };
 4461        move_all_items(&pane, &next_pane, window, cx);
 4462        cx.notify();
 4463    }
 4464
 4465    fn remove_pane(
 4466        &mut self,
 4467        pane: Entity<Pane>,
 4468        focus_on: Option<Entity<Pane>>,
 4469        window: &mut Window,
 4470        cx: &mut Context<Self>,
 4471    ) {
 4472        if self.center.remove(&pane, cx).unwrap() {
 4473            self.force_remove_pane(&pane, &focus_on, window, cx);
 4474            self.unfollow_in_pane(&pane, window, cx);
 4475            self.last_leaders_by_pane.remove(&pane.downgrade());
 4476            for removed_item in pane.read(cx).items() {
 4477                self.panes_by_item.remove(&removed_item.item_id());
 4478            }
 4479
 4480            cx.notify();
 4481        } else {
 4482            self.active_item_path_changed(true, window, cx);
 4483        }
 4484        cx.emit(Event::PaneRemoved);
 4485    }
 4486
 4487    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4488        &mut self.panes
 4489    }
 4490
 4491    pub fn panes(&self) -> &[Entity<Pane>] {
 4492        &self.panes
 4493    }
 4494
 4495    pub fn active_pane(&self) -> &Entity<Pane> {
 4496        &self.active_pane
 4497    }
 4498
 4499    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4500        for dock in self.all_docks() {
 4501            if dock.focus_handle(cx).contains_focused(window, cx)
 4502                && let Some(pane) = dock
 4503                    .read(cx)
 4504                    .active_panel()
 4505                    .and_then(|panel| panel.pane(cx))
 4506            {
 4507                return pane;
 4508            }
 4509        }
 4510        self.active_pane().clone()
 4511    }
 4512
 4513    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4514        self.find_pane_in_direction(SplitDirection::Right, cx)
 4515            .unwrap_or_else(|| {
 4516                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4517            })
 4518    }
 4519
 4520    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4521        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4522        weak_pane.upgrade()
 4523    }
 4524
 4525    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4526        self.follower_states.retain(|leader_id, state| {
 4527            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4528                for item in state.items_by_leader_view_id.values() {
 4529                    item.view.set_leader_id(None, window, cx);
 4530                }
 4531                false
 4532            } else {
 4533                true
 4534            }
 4535        });
 4536        cx.notify();
 4537    }
 4538
 4539    pub fn start_following(
 4540        &mut self,
 4541        leader_id: impl Into<CollaboratorId>,
 4542        window: &mut Window,
 4543        cx: &mut Context<Self>,
 4544    ) -> Option<Task<Result<()>>> {
 4545        let leader_id = leader_id.into();
 4546        let pane = self.active_pane().clone();
 4547
 4548        self.last_leaders_by_pane
 4549            .insert(pane.downgrade(), leader_id);
 4550        self.unfollow(leader_id, window, cx);
 4551        self.unfollow_in_pane(&pane, window, cx);
 4552        self.follower_states.insert(
 4553            leader_id,
 4554            FollowerState {
 4555                center_pane: pane.clone(),
 4556                dock_pane: None,
 4557                active_view_id: None,
 4558                items_by_leader_view_id: Default::default(),
 4559            },
 4560        );
 4561        cx.notify();
 4562
 4563        match leader_id {
 4564            CollaboratorId::PeerId(leader_peer_id) => {
 4565                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4566                let project_id = self.project.read(cx).remote_id();
 4567                let request = self.app_state.client.request(proto::Follow {
 4568                    room_id,
 4569                    project_id,
 4570                    leader_id: Some(leader_peer_id),
 4571                });
 4572
 4573                Some(cx.spawn_in(window, async move |this, cx| {
 4574                    let response = request.await?;
 4575                    this.update(cx, |this, _| {
 4576                        let state = this
 4577                            .follower_states
 4578                            .get_mut(&leader_id)
 4579                            .context("following interrupted")?;
 4580                        state.active_view_id = response
 4581                            .active_view
 4582                            .as_ref()
 4583                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4584                        anyhow::Ok(())
 4585                    })??;
 4586                    if let Some(view) = response.active_view {
 4587                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4588                    }
 4589                    this.update_in(cx, |this, window, cx| {
 4590                        this.leader_updated(leader_id, window, cx)
 4591                    })?;
 4592                    Ok(())
 4593                }))
 4594            }
 4595            CollaboratorId::Agent => {
 4596                self.leader_updated(leader_id, window, cx)?;
 4597                Some(Task::ready(Ok(())))
 4598            }
 4599        }
 4600    }
 4601
 4602    pub fn follow_next_collaborator(
 4603        &mut self,
 4604        _: &FollowNextCollaborator,
 4605        window: &mut Window,
 4606        cx: &mut Context<Self>,
 4607    ) {
 4608        let collaborators = self.project.read(cx).collaborators();
 4609        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4610            let mut collaborators = collaborators.keys().copied();
 4611            for peer_id in collaborators.by_ref() {
 4612                if CollaboratorId::PeerId(peer_id) == leader_id {
 4613                    break;
 4614                }
 4615            }
 4616            collaborators.next().map(CollaboratorId::PeerId)
 4617        } else if let Some(last_leader_id) =
 4618            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4619        {
 4620            match last_leader_id {
 4621                CollaboratorId::PeerId(peer_id) => {
 4622                    if collaborators.contains_key(peer_id) {
 4623                        Some(*last_leader_id)
 4624                    } else {
 4625                        None
 4626                    }
 4627                }
 4628                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4629            }
 4630        } else {
 4631            None
 4632        };
 4633
 4634        let pane = self.active_pane.clone();
 4635        let Some(leader_id) = next_leader_id.or_else(|| {
 4636            Some(CollaboratorId::PeerId(
 4637                collaborators.keys().copied().next()?,
 4638            ))
 4639        }) else {
 4640            return;
 4641        };
 4642        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4643            return;
 4644        }
 4645        if let Some(task) = self.start_following(leader_id, window, cx) {
 4646            task.detach_and_log_err(cx)
 4647        }
 4648    }
 4649
 4650    pub fn follow(
 4651        &mut self,
 4652        leader_id: impl Into<CollaboratorId>,
 4653        window: &mut Window,
 4654        cx: &mut Context<Self>,
 4655    ) {
 4656        let leader_id = leader_id.into();
 4657
 4658        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4659            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4660                return;
 4661            };
 4662            let room = room.read(cx);
 4663            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4664                return;
 4665            };
 4666
 4667            let project = self.project.read(cx);
 4668
 4669            let other_project_id = match remote_participant.location {
 4670                call::ParticipantLocation::External => None,
 4671                call::ParticipantLocation::UnsharedProject => None,
 4672                call::ParticipantLocation::SharedProject { project_id } => {
 4673                    if Some(project_id) == project.remote_id() {
 4674                        None
 4675                    } else {
 4676                        Some(project_id)
 4677                    }
 4678                }
 4679            };
 4680
 4681            // if they are active in another project, follow there.
 4682            if let Some(project_id) = other_project_id {
 4683                let app_state = self.app_state.clone();
 4684                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4685                    .detach_and_log_err(cx);
 4686            }
 4687        }
 4688
 4689        // if you're already following, find the right pane and focus it.
 4690        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4691            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4692
 4693            return;
 4694        }
 4695
 4696        // Otherwise, follow.
 4697        if let Some(task) = self.start_following(leader_id, window, cx) {
 4698            task.detach_and_log_err(cx)
 4699        }
 4700    }
 4701
 4702    pub fn unfollow(
 4703        &mut self,
 4704        leader_id: impl Into<CollaboratorId>,
 4705        window: &mut Window,
 4706        cx: &mut Context<Self>,
 4707    ) -> Option<()> {
 4708        cx.notify();
 4709
 4710        let leader_id = leader_id.into();
 4711        let state = self.follower_states.remove(&leader_id)?;
 4712        for (_, item) in state.items_by_leader_view_id {
 4713            item.view.set_leader_id(None, window, cx);
 4714        }
 4715
 4716        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4717            let project_id = self.project.read(cx).remote_id();
 4718            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4719            self.app_state
 4720                .client
 4721                .send(proto::Unfollow {
 4722                    room_id,
 4723                    project_id,
 4724                    leader_id: Some(leader_peer_id),
 4725                })
 4726                .log_err();
 4727        }
 4728
 4729        Some(())
 4730    }
 4731
 4732    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4733        self.follower_states.contains_key(&id.into())
 4734    }
 4735
 4736    fn active_item_path_changed(
 4737        &mut self,
 4738        focus_changed: bool,
 4739        window: &mut Window,
 4740        cx: &mut Context<Self>,
 4741    ) {
 4742        cx.emit(Event::ActiveItemChanged);
 4743        let active_entry = self.active_project_path(cx);
 4744        self.project.update(cx, |project, cx| {
 4745            project.set_active_path(active_entry.clone(), cx)
 4746        });
 4747
 4748        if focus_changed && let Some(project_path) = &active_entry {
 4749            let git_store_entity = self.project.read(cx).git_store().clone();
 4750            git_store_entity.update(cx, |git_store, cx| {
 4751                git_store.set_active_repo_for_path(project_path, cx);
 4752            });
 4753        }
 4754
 4755        self.update_window_title(window, cx);
 4756    }
 4757
 4758    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4759        let project = self.project().read(cx);
 4760        let mut title = String::new();
 4761
 4762        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4763            let name = {
 4764                let settings_location = SettingsLocation {
 4765                    worktree_id: worktree.read(cx).id(),
 4766                    path: RelPath::empty(),
 4767                };
 4768
 4769                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4770                match &settings.project_name {
 4771                    Some(name) => name.as_str(),
 4772                    None => worktree.read(cx).root_name_str(),
 4773                }
 4774            };
 4775            if i > 0 {
 4776                title.push_str(", ");
 4777            }
 4778            title.push_str(name);
 4779        }
 4780
 4781        if title.is_empty() {
 4782            title = "empty project".to_string();
 4783        }
 4784
 4785        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4786            let filename = path.path.file_name().or_else(|| {
 4787                Some(
 4788                    project
 4789                        .worktree_for_id(path.worktree_id, cx)?
 4790                        .read(cx)
 4791                        .root_name_str(),
 4792                )
 4793            });
 4794
 4795            if let Some(filename) = filename {
 4796                title.push_str("");
 4797                title.push_str(filename.as_ref());
 4798            }
 4799        }
 4800
 4801        if project.is_via_collab() {
 4802            title.push_str("");
 4803        } else if project.is_shared() {
 4804            title.push_str("");
 4805        }
 4806
 4807        if let Some(last_title) = self.last_window_title.as_ref()
 4808            && &title == last_title
 4809        {
 4810            return;
 4811        }
 4812        window.set_window_title(&title);
 4813        SystemWindowTabController::update_tab_title(
 4814            cx,
 4815            window.window_handle().window_id(),
 4816            SharedString::from(&title),
 4817        );
 4818        self.last_window_title = Some(title);
 4819    }
 4820
 4821    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4822        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4823        if is_edited != self.window_edited {
 4824            self.window_edited = is_edited;
 4825            window.set_window_edited(self.window_edited)
 4826        }
 4827    }
 4828
 4829    fn update_item_dirty_state(
 4830        &mut self,
 4831        item: &dyn ItemHandle,
 4832        window: &mut Window,
 4833        cx: &mut App,
 4834    ) {
 4835        let is_dirty = item.is_dirty(cx);
 4836        let item_id = item.item_id();
 4837        let was_dirty = self.dirty_items.contains_key(&item_id);
 4838        if is_dirty == was_dirty {
 4839            return;
 4840        }
 4841        if was_dirty {
 4842            self.dirty_items.remove(&item_id);
 4843            self.update_window_edited(window, cx);
 4844            return;
 4845        }
 4846        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4847            let s = item.on_release(
 4848                cx,
 4849                Box::new(move |cx| {
 4850                    window_handle
 4851                        .update(cx, |this, window, cx| {
 4852                            this.dirty_items.remove(&item_id);
 4853                            this.update_window_edited(window, cx)
 4854                        })
 4855                        .ok();
 4856                }),
 4857            );
 4858            self.dirty_items.insert(item_id, s);
 4859            self.update_window_edited(window, cx);
 4860        }
 4861    }
 4862
 4863    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4864        if self.notifications.is_empty() {
 4865            None
 4866        } else {
 4867            Some(
 4868                div()
 4869                    .absolute()
 4870                    .right_3()
 4871                    .bottom_3()
 4872                    .w_112()
 4873                    .h_full()
 4874                    .flex()
 4875                    .flex_col()
 4876                    .justify_end()
 4877                    .gap_2()
 4878                    .children(
 4879                        self.notifications
 4880                            .iter()
 4881                            .map(|(_, notification)| notification.clone().into_any()),
 4882                    ),
 4883            )
 4884        }
 4885    }
 4886
 4887    // RPC handlers
 4888
 4889    fn active_view_for_follower(
 4890        &self,
 4891        follower_project_id: Option<u64>,
 4892        window: &mut Window,
 4893        cx: &mut Context<Self>,
 4894    ) -> Option<proto::View> {
 4895        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4896        let item = item?;
 4897        let leader_id = self
 4898            .pane_for(&*item)
 4899            .and_then(|pane| self.leader_for_pane(&pane));
 4900        let leader_peer_id = match leader_id {
 4901            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4902            Some(CollaboratorId::Agent) | None => None,
 4903        };
 4904
 4905        let item_handle = item.to_followable_item_handle(cx)?;
 4906        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4907        let variant = item_handle.to_state_proto(window, cx)?;
 4908
 4909        if item_handle.is_project_item(window, cx)
 4910            && (follower_project_id.is_none()
 4911                || follower_project_id != self.project.read(cx).remote_id())
 4912        {
 4913            return None;
 4914        }
 4915
 4916        Some(proto::View {
 4917            id: id.to_proto(),
 4918            leader_id: leader_peer_id,
 4919            variant: Some(variant),
 4920            panel_id: panel_id.map(|id| id as i32),
 4921        })
 4922    }
 4923
 4924    fn handle_follow(
 4925        &mut self,
 4926        follower_project_id: Option<u64>,
 4927        window: &mut Window,
 4928        cx: &mut Context<Self>,
 4929    ) -> proto::FollowResponse {
 4930        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4931
 4932        cx.notify();
 4933        proto::FollowResponse {
 4934            // TODO: Remove after version 0.145.x stabilizes.
 4935            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4936            views: active_view.iter().cloned().collect(),
 4937            active_view,
 4938        }
 4939    }
 4940
 4941    fn handle_update_followers(
 4942        &mut self,
 4943        leader_id: PeerId,
 4944        message: proto::UpdateFollowers,
 4945        _window: &mut Window,
 4946        _cx: &mut Context<Self>,
 4947    ) {
 4948        self.leader_updates_tx
 4949            .unbounded_send((leader_id, message))
 4950            .ok();
 4951    }
 4952
 4953    async fn process_leader_update(
 4954        this: &WeakEntity<Self>,
 4955        leader_id: PeerId,
 4956        update: proto::UpdateFollowers,
 4957        cx: &mut AsyncWindowContext,
 4958    ) -> Result<()> {
 4959        match update.variant.context("invalid update")? {
 4960            proto::update_followers::Variant::CreateView(view) => {
 4961                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4962                let should_add_view = this.update(cx, |this, _| {
 4963                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4964                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4965                    } else {
 4966                        anyhow::Ok(false)
 4967                    }
 4968                })??;
 4969
 4970                if should_add_view {
 4971                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4972                }
 4973            }
 4974            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4975                let should_add_view = this.update(cx, |this, _| {
 4976                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4977                        state.active_view_id = update_active_view
 4978                            .view
 4979                            .as_ref()
 4980                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4981
 4982                        if state.active_view_id.is_some_and(|view_id| {
 4983                            !state.items_by_leader_view_id.contains_key(&view_id)
 4984                        }) {
 4985                            anyhow::Ok(true)
 4986                        } else {
 4987                            anyhow::Ok(false)
 4988                        }
 4989                    } else {
 4990                        anyhow::Ok(false)
 4991                    }
 4992                })??;
 4993
 4994                if should_add_view && let Some(view) = update_active_view.view {
 4995                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4996                }
 4997            }
 4998            proto::update_followers::Variant::UpdateView(update_view) => {
 4999                let variant = update_view.variant.context("missing update view variant")?;
 5000                let id = update_view.id.context("missing update view id")?;
 5001                let mut tasks = Vec::new();
 5002                this.update_in(cx, |this, window, cx| {
 5003                    let project = this.project.clone();
 5004                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5005                        let view_id = ViewId::from_proto(id.clone())?;
 5006                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5007                            tasks.push(item.view.apply_update_proto(
 5008                                &project,
 5009                                variant.clone(),
 5010                                window,
 5011                                cx,
 5012                            ));
 5013                        }
 5014                    }
 5015                    anyhow::Ok(())
 5016                })??;
 5017                try_join_all(tasks).await.log_err();
 5018            }
 5019        }
 5020        this.update_in(cx, |this, window, cx| {
 5021            this.leader_updated(leader_id, window, cx)
 5022        })?;
 5023        Ok(())
 5024    }
 5025
 5026    async fn add_view_from_leader(
 5027        this: WeakEntity<Self>,
 5028        leader_id: PeerId,
 5029        view: &proto::View,
 5030        cx: &mut AsyncWindowContext,
 5031    ) -> Result<()> {
 5032        let this = this.upgrade().context("workspace dropped")?;
 5033
 5034        let Some(id) = view.id.clone() else {
 5035            anyhow::bail!("no id for view");
 5036        };
 5037        let id = ViewId::from_proto(id)?;
 5038        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5039
 5040        let pane = this.update(cx, |this, _cx| {
 5041            let state = this
 5042                .follower_states
 5043                .get(&leader_id.into())
 5044                .context("stopped following")?;
 5045            anyhow::Ok(state.pane().clone())
 5046        })??;
 5047        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5048            let client = this.read(cx).client().clone();
 5049            pane.items().find_map(|item| {
 5050                let item = item.to_followable_item_handle(cx)?;
 5051                if item.remote_id(&client, window, cx) == Some(id) {
 5052                    Some(item)
 5053                } else {
 5054                    None
 5055                }
 5056            })
 5057        })?;
 5058        let item = if let Some(existing_item) = existing_item {
 5059            existing_item
 5060        } else {
 5061            let variant = view.variant.clone();
 5062            anyhow::ensure!(variant.is_some(), "missing view variant");
 5063
 5064            let task = cx.update(|window, cx| {
 5065                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5066            })?;
 5067
 5068            let Some(task) = task else {
 5069                anyhow::bail!(
 5070                    "failed to construct view from leader (maybe from a different version of zed?)"
 5071                );
 5072            };
 5073
 5074            let mut new_item = task.await?;
 5075            pane.update_in(cx, |pane, window, cx| {
 5076                let mut item_to_remove = None;
 5077                for (ix, item) in pane.items().enumerate() {
 5078                    if let Some(item) = item.to_followable_item_handle(cx) {
 5079                        match new_item.dedup(item.as_ref(), window, cx) {
 5080                            Some(item::Dedup::KeepExisting) => {
 5081                                new_item =
 5082                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5083                                break;
 5084                            }
 5085                            Some(item::Dedup::ReplaceExisting) => {
 5086                                item_to_remove = Some((ix, item.item_id()));
 5087                                break;
 5088                            }
 5089                            None => {}
 5090                        }
 5091                    }
 5092                }
 5093
 5094                if let Some((ix, id)) = item_to_remove {
 5095                    pane.remove_item(id, false, false, window, cx);
 5096                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5097                }
 5098            })?;
 5099
 5100            new_item
 5101        };
 5102
 5103        this.update_in(cx, |this, window, cx| {
 5104            let state = this.follower_states.get_mut(&leader_id.into())?;
 5105            item.set_leader_id(Some(leader_id.into()), window, cx);
 5106            state.items_by_leader_view_id.insert(
 5107                id,
 5108                FollowerView {
 5109                    view: item,
 5110                    location: panel_id,
 5111                },
 5112            );
 5113
 5114            Some(())
 5115        })?;
 5116
 5117        Ok(())
 5118    }
 5119
 5120    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5121        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5122            return;
 5123        };
 5124
 5125        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5126            let buffer_entity_id = agent_location.buffer.entity_id();
 5127            let view_id = ViewId {
 5128                creator: CollaboratorId::Agent,
 5129                id: buffer_entity_id.as_u64(),
 5130            };
 5131            follower_state.active_view_id = Some(view_id);
 5132
 5133            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5134                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5135                hash_map::Entry::Vacant(entry) => {
 5136                    let existing_view =
 5137                        follower_state
 5138                            .center_pane
 5139                            .read(cx)
 5140                            .items()
 5141                            .find_map(|item| {
 5142                                let item = item.to_followable_item_handle(cx)?;
 5143                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5144                                    && item.project_item_model_ids(cx).as_slice()
 5145                                        == [buffer_entity_id]
 5146                                {
 5147                                    Some(item)
 5148                                } else {
 5149                                    None
 5150                                }
 5151                            });
 5152                    let view = existing_view.or_else(|| {
 5153                        agent_location.buffer.upgrade().and_then(|buffer| {
 5154                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5155                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5156                            })?
 5157                            .to_followable_item_handle(cx)
 5158                        })
 5159                    });
 5160
 5161                    view.map(|view| {
 5162                        entry.insert(FollowerView {
 5163                            view,
 5164                            location: None,
 5165                        })
 5166                    })
 5167                }
 5168            };
 5169
 5170            if let Some(item) = item {
 5171                item.view
 5172                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5173                item.view
 5174                    .update_agent_location(agent_location.position, window, cx);
 5175            }
 5176        } else {
 5177            follower_state.active_view_id = None;
 5178        }
 5179
 5180        self.leader_updated(CollaboratorId::Agent, window, cx);
 5181    }
 5182
 5183    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5184        let mut is_project_item = true;
 5185        let mut update = proto::UpdateActiveView::default();
 5186        if window.is_window_active() {
 5187            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5188
 5189            if let Some(item) = active_item
 5190                && item.item_focus_handle(cx).contains_focused(window, cx)
 5191            {
 5192                let leader_id = self
 5193                    .pane_for(&*item)
 5194                    .and_then(|pane| self.leader_for_pane(&pane));
 5195                let leader_peer_id = match leader_id {
 5196                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5197                    Some(CollaboratorId::Agent) | None => None,
 5198                };
 5199
 5200                if let Some(item) = item.to_followable_item_handle(cx) {
 5201                    let id = item
 5202                        .remote_id(&self.app_state.client, window, cx)
 5203                        .map(|id| id.to_proto());
 5204
 5205                    if let Some(id) = id
 5206                        && let Some(variant) = item.to_state_proto(window, cx)
 5207                    {
 5208                        let view = Some(proto::View {
 5209                            id: id.clone(),
 5210                            leader_id: leader_peer_id,
 5211                            variant: Some(variant),
 5212                            panel_id: panel_id.map(|id| id as i32),
 5213                        });
 5214
 5215                        is_project_item = item.is_project_item(window, cx);
 5216                        update = proto::UpdateActiveView {
 5217                            view,
 5218                            // TODO: Remove after version 0.145.x stabilizes.
 5219                            id,
 5220                            leader_id: leader_peer_id,
 5221                        };
 5222                    };
 5223                }
 5224            }
 5225        }
 5226
 5227        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5228        if active_view_id != self.last_active_view_id.as_ref() {
 5229            self.last_active_view_id = active_view_id.cloned();
 5230            self.update_followers(
 5231                is_project_item,
 5232                proto::update_followers::Variant::UpdateActiveView(update),
 5233                window,
 5234                cx,
 5235            );
 5236        }
 5237    }
 5238
 5239    fn active_item_for_followers(
 5240        &self,
 5241        window: &mut Window,
 5242        cx: &mut App,
 5243    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5244        let mut active_item = None;
 5245        let mut panel_id = None;
 5246        for dock in self.all_docks() {
 5247            if dock.focus_handle(cx).contains_focused(window, cx)
 5248                && let Some(panel) = dock.read(cx).active_panel()
 5249                && let Some(pane) = panel.pane(cx)
 5250                && let Some(item) = pane.read(cx).active_item()
 5251            {
 5252                active_item = Some(item);
 5253                panel_id = panel.remote_id();
 5254                break;
 5255            }
 5256        }
 5257
 5258        if active_item.is_none() {
 5259            active_item = self.active_pane().read(cx).active_item();
 5260        }
 5261        (active_item, panel_id)
 5262    }
 5263
 5264    fn update_followers(
 5265        &self,
 5266        project_only: bool,
 5267        update: proto::update_followers::Variant,
 5268        _: &mut Window,
 5269        cx: &mut App,
 5270    ) -> Option<()> {
 5271        // If this update only applies to for followers in the current project,
 5272        // then skip it unless this project is shared. If it applies to all
 5273        // followers, regardless of project, then set `project_id` to none,
 5274        // indicating that it goes to all followers.
 5275        let project_id = if project_only {
 5276            Some(self.project.read(cx).remote_id()?)
 5277        } else {
 5278            None
 5279        };
 5280        self.app_state().workspace_store.update(cx, |store, cx| {
 5281            store.update_followers(project_id, update, cx)
 5282        })
 5283    }
 5284
 5285    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5286        self.follower_states.iter().find_map(|(leader_id, state)| {
 5287            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5288                Some(*leader_id)
 5289            } else {
 5290                None
 5291            }
 5292        })
 5293    }
 5294
 5295    fn leader_updated(
 5296        &mut self,
 5297        leader_id: impl Into<CollaboratorId>,
 5298        window: &mut Window,
 5299        cx: &mut Context<Self>,
 5300    ) -> Option<Box<dyn ItemHandle>> {
 5301        cx.notify();
 5302
 5303        let leader_id = leader_id.into();
 5304        let (panel_id, item) = match leader_id {
 5305            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5306            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5307        };
 5308
 5309        let state = self.follower_states.get(&leader_id)?;
 5310        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5311        let pane;
 5312        if let Some(panel_id) = panel_id {
 5313            pane = self
 5314                .activate_panel_for_proto_id(panel_id, window, cx)?
 5315                .pane(cx)?;
 5316            let state = self.follower_states.get_mut(&leader_id)?;
 5317            state.dock_pane = Some(pane.clone());
 5318        } else {
 5319            pane = state.center_pane.clone();
 5320            let state = self.follower_states.get_mut(&leader_id)?;
 5321            if let Some(dock_pane) = state.dock_pane.take() {
 5322                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5323            }
 5324        }
 5325
 5326        pane.update(cx, |pane, cx| {
 5327            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5328            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5329                pane.activate_item(index, false, false, window, cx);
 5330            } else {
 5331                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5332            }
 5333
 5334            if focus_active_item {
 5335                pane.focus_active_item(window, cx)
 5336            }
 5337        });
 5338
 5339        Some(item)
 5340    }
 5341
 5342    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5343        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5344        let active_view_id = state.active_view_id?;
 5345        Some(
 5346            state
 5347                .items_by_leader_view_id
 5348                .get(&active_view_id)?
 5349                .view
 5350                .boxed_clone(),
 5351        )
 5352    }
 5353
 5354    fn active_item_for_peer(
 5355        &self,
 5356        peer_id: PeerId,
 5357        window: &mut Window,
 5358        cx: &mut Context<Self>,
 5359    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5360        let call = self.active_call()?;
 5361        let room = call.read(cx).room()?.read(cx);
 5362        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5363        let leader_in_this_app;
 5364        let leader_in_this_project;
 5365        match participant.location {
 5366            call::ParticipantLocation::SharedProject { project_id } => {
 5367                leader_in_this_app = true;
 5368                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5369            }
 5370            call::ParticipantLocation::UnsharedProject => {
 5371                leader_in_this_app = true;
 5372                leader_in_this_project = false;
 5373            }
 5374            call::ParticipantLocation::External => {
 5375                leader_in_this_app = false;
 5376                leader_in_this_project = false;
 5377            }
 5378        };
 5379        let state = self.follower_states.get(&peer_id.into())?;
 5380        let mut item_to_activate = None;
 5381        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5382            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5383                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5384            {
 5385                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5386            }
 5387        } else if let Some(shared_screen) =
 5388            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5389        {
 5390            item_to_activate = Some((None, Box::new(shared_screen)));
 5391        }
 5392        item_to_activate
 5393    }
 5394
 5395    fn shared_screen_for_peer(
 5396        &self,
 5397        peer_id: PeerId,
 5398        pane: &Entity<Pane>,
 5399        window: &mut Window,
 5400        cx: &mut App,
 5401    ) -> Option<Entity<SharedScreen>> {
 5402        let call = self.active_call()?;
 5403        let room = call.read(cx).room()?.clone();
 5404        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5405        let track = participant.video_tracks.values().next()?.clone();
 5406        let user = participant.user.clone();
 5407
 5408        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5409            if item.read(cx).peer_id == peer_id {
 5410                return Some(item);
 5411            }
 5412        }
 5413
 5414        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5415    }
 5416
 5417    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5418        if window.is_window_active() {
 5419            self.update_active_view_for_followers(window, cx);
 5420
 5421            if let Some(database_id) = self.database_id {
 5422                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5423                    .detach();
 5424            }
 5425        } else {
 5426            for pane in &self.panes {
 5427                pane.update(cx, |pane, cx| {
 5428                    if let Some(item) = pane.active_item() {
 5429                        item.workspace_deactivated(window, cx);
 5430                    }
 5431                    for item in pane.items() {
 5432                        if matches!(
 5433                            item.workspace_settings(cx).autosave,
 5434                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5435                        ) {
 5436                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5437                                .detach_and_log_err(cx);
 5438                        }
 5439                    }
 5440                });
 5441            }
 5442        }
 5443    }
 5444
 5445    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5446        self.active_call.as_ref().map(|(call, _)| call)
 5447    }
 5448
 5449    fn on_active_call_event(
 5450        &mut self,
 5451        _: &Entity<ActiveCall>,
 5452        event: &call::room::Event,
 5453        window: &mut Window,
 5454        cx: &mut Context<Self>,
 5455    ) {
 5456        match event {
 5457            call::room::Event::ParticipantLocationChanged { participant_id }
 5458            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5459                self.leader_updated(participant_id, window, cx);
 5460            }
 5461            _ => {}
 5462        }
 5463    }
 5464
 5465    pub fn database_id(&self) -> Option<WorkspaceId> {
 5466        self.database_id
 5467    }
 5468
 5469    pub fn session_id(&self) -> Option<String> {
 5470        self.session_id.clone()
 5471    }
 5472
 5473    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5474        let project = self.project().read(cx);
 5475        project
 5476            .visible_worktrees(cx)
 5477            .map(|worktree| worktree.read(cx).abs_path())
 5478            .collect::<Vec<_>>()
 5479    }
 5480
 5481    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5482        match member {
 5483            Member::Axis(PaneAxis { members, .. }) => {
 5484                for child in members.iter() {
 5485                    self.remove_panes(child.clone(), window, cx)
 5486                }
 5487            }
 5488            Member::Pane(pane) => {
 5489                self.force_remove_pane(&pane, &None, window, cx);
 5490            }
 5491        }
 5492    }
 5493
 5494    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5495        self.session_id.take();
 5496        self.serialize_workspace_internal(window, cx)
 5497    }
 5498
 5499    fn force_remove_pane(
 5500        &mut self,
 5501        pane: &Entity<Pane>,
 5502        focus_on: &Option<Entity<Pane>>,
 5503        window: &mut Window,
 5504        cx: &mut Context<Workspace>,
 5505    ) {
 5506        self.panes.retain(|p| p != pane);
 5507        if let Some(focus_on) = focus_on {
 5508            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5509        } else if self.active_pane() == pane {
 5510            self.panes
 5511                .last()
 5512                .unwrap()
 5513                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5514        }
 5515        if self.last_active_center_pane == Some(pane.downgrade()) {
 5516            self.last_active_center_pane = None;
 5517        }
 5518        cx.notify();
 5519    }
 5520
 5521    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5522        if self._schedule_serialize_workspace.is_none() {
 5523            self._schedule_serialize_workspace =
 5524                Some(cx.spawn_in(window, async move |this, cx| {
 5525                    cx.background_executor()
 5526                        .timer(SERIALIZATION_THROTTLE_TIME)
 5527                        .await;
 5528                    this.update_in(cx, |this, window, cx| {
 5529                        this.serialize_workspace_internal(window, cx).detach();
 5530                        this._schedule_serialize_workspace.take();
 5531                    })
 5532                    .log_err();
 5533                }));
 5534        }
 5535    }
 5536
 5537    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5538        let Some(database_id) = self.database_id() else {
 5539            return Task::ready(());
 5540        };
 5541
 5542        fn serialize_pane_handle(
 5543            pane_handle: &Entity<Pane>,
 5544            window: &mut Window,
 5545            cx: &mut App,
 5546        ) -> SerializedPane {
 5547            let (items, active, pinned_count) = {
 5548                let pane = pane_handle.read(cx);
 5549                let active_item_id = pane.active_item().map(|item| item.item_id());
 5550                (
 5551                    pane.items()
 5552                        .filter_map(|handle| {
 5553                            let handle = handle.to_serializable_item_handle(cx)?;
 5554
 5555                            Some(SerializedItem {
 5556                                kind: Arc::from(handle.serialized_item_kind()),
 5557                                item_id: handle.item_id().as_u64(),
 5558                                active: Some(handle.item_id()) == active_item_id,
 5559                                preview: pane.is_active_preview_item(handle.item_id()),
 5560                            })
 5561                        })
 5562                        .collect::<Vec<_>>(),
 5563                    pane.has_focus(window, cx),
 5564                    pane.pinned_count(),
 5565                )
 5566            };
 5567
 5568            SerializedPane::new(items, active, pinned_count)
 5569        }
 5570
 5571        fn build_serialized_pane_group(
 5572            pane_group: &Member,
 5573            window: &mut Window,
 5574            cx: &mut App,
 5575        ) -> SerializedPaneGroup {
 5576            match pane_group {
 5577                Member::Axis(PaneAxis {
 5578                    axis,
 5579                    members,
 5580                    flexes,
 5581                    bounding_boxes: _,
 5582                }) => SerializedPaneGroup::Group {
 5583                    axis: SerializedAxis(*axis),
 5584                    children: members
 5585                        .iter()
 5586                        .map(|member| build_serialized_pane_group(member, window, cx))
 5587                        .collect::<Vec<_>>(),
 5588                    flexes: Some(flexes.lock().clone()),
 5589                },
 5590                Member::Pane(pane_handle) => {
 5591                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5592                }
 5593            }
 5594        }
 5595
 5596        fn build_serialized_docks(
 5597            this: &Workspace,
 5598            window: &mut Window,
 5599            cx: &mut App,
 5600        ) -> DockStructure {
 5601            let left_dock = this.left_dock.read(cx);
 5602            let left_visible = left_dock.is_open();
 5603            let left_active_panel = left_dock
 5604                .active_panel()
 5605                .map(|panel| panel.persistent_name().to_string());
 5606            let left_dock_zoom = left_dock
 5607                .active_panel()
 5608                .map(|panel| panel.is_zoomed(window, cx))
 5609                .unwrap_or(false);
 5610
 5611            let right_dock = this.right_dock.read(cx);
 5612            let right_visible = right_dock.is_open();
 5613            let right_active_panel = right_dock
 5614                .active_panel()
 5615                .map(|panel| panel.persistent_name().to_string());
 5616            let right_dock_zoom = right_dock
 5617                .active_panel()
 5618                .map(|panel| panel.is_zoomed(window, cx))
 5619                .unwrap_or(false);
 5620
 5621            let bottom_dock = this.bottom_dock.read(cx);
 5622            let bottom_visible = bottom_dock.is_open();
 5623            let bottom_active_panel = bottom_dock
 5624                .active_panel()
 5625                .map(|panel| panel.persistent_name().to_string());
 5626            let bottom_dock_zoom = bottom_dock
 5627                .active_panel()
 5628                .map(|panel| panel.is_zoomed(window, cx))
 5629                .unwrap_or(false);
 5630
 5631            DockStructure {
 5632                left: DockData {
 5633                    visible: left_visible,
 5634                    active_panel: left_active_panel,
 5635                    zoom: left_dock_zoom,
 5636                },
 5637                right: DockData {
 5638                    visible: right_visible,
 5639                    active_panel: right_active_panel,
 5640                    zoom: right_dock_zoom,
 5641                },
 5642                bottom: DockData {
 5643                    visible: bottom_visible,
 5644                    active_panel: bottom_active_panel,
 5645                    zoom: bottom_dock_zoom,
 5646                },
 5647            }
 5648        }
 5649
 5650        match self.serialize_workspace_location(cx) {
 5651            WorkspaceLocation::Location(location, paths) => {
 5652                let breakpoints = self.project.update(cx, |project, cx| {
 5653                    project
 5654                        .breakpoint_store()
 5655                        .read(cx)
 5656                        .all_source_breakpoints(cx)
 5657                });
 5658                let user_toolchains = self
 5659                    .project
 5660                    .read(cx)
 5661                    .user_toolchains(cx)
 5662                    .unwrap_or_default();
 5663
 5664                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5665                let docks = build_serialized_docks(self, window, cx);
 5666                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5667
 5668                let serialized_workspace = SerializedWorkspace {
 5669                    id: database_id,
 5670                    location,
 5671                    paths,
 5672                    center_group,
 5673                    window_bounds,
 5674                    display: Default::default(),
 5675                    docks,
 5676                    centered_layout: self.centered_layout,
 5677                    session_id: self.session_id.clone(),
 5678                    breakpoints,
 5679                    window_id: Some(window.window_handle().window_id().as_u64()),
 5680                    user_toolchains,
 5681                };
 5682
 5683                window.spawn(cx, async move |_| {
 5684                    persistence::DB.save_workspace(serialized_workspace).await;
 5685                })
 5686            }
 5687            WorkspaceLocation::DetachFromSession => {
 5688                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5689                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5690                window.spawn(cx, async move |_| {
 5691                    persistence::DB
 5692                        .set_window_open_status(
 5693                            database_id,
 5694                            window_bounds,
 5695                            display.unwrap_or_default(),
 5696                        )
 5697                        .await
 5698                        .log_err();
 5699                    persistence::DB
 5700                        .set_session_id(database_id, None)
 5701                        .await
 5702                        .log_err();
 5703                })
 5704            }
 5705            WorkspaceLocation::None => Task::ready(()),
 5706        }
 5707    }
 5708
 5709    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5710        let paths = PathList::new(&self.root_paths(cx));
 5711        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5712            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5713        } else if self.project.read(cx).is_local() {
 5714            if !paths.is_empty() {
 5715                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5716            } else {
 5717                WorkspaceLocation::DetachFromSession
 5718            }
 5719        } else {
 5720            WorkspaceLocation::None
 5721        }
 5722    }
 5723
 5724    fn update_history(&self, cx: &mut App) {
 5725        let Some(id) = self.database_id() else {
 5726            return;
 5727        };
 5728        if !self.project.read(cx).is_local() {
 5729            return;
 5730        }
 5731        if let Some(manager) = HistoryManager::global(cx) {
 5732            let paths = PathList::new(&self.root_paths(cx));
 5733            manager.update(cx, |this, cx| {
 5734                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5735            });
 5736        }
 5737    }
 5738
 5739    async fn serialize_items(
 5740        this: &WeakEntity<Self>,
 5741        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5742        cx: &mut AsyncWindowContext,
 5743    ) -> Result<()> {
 5744        const CHUNK_SIZE: usize = 200;
 5745
 5746        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5747
 5748        while let Some(items_received) = serializable_items.next().await {
 5749            let unique_items =
 5750                items_received
 5751                    .into_iter()
 5752                    .fold(HashMap::default(), |mut acc, item| {
 5753                        acc.entry(item.item_id()).or_insert(item);
 5754                        acc
 5755                    });
 5756
 5757            // We use into_iter() here so that the references to the items are moved into
 5758            // the tasks and not kept alive while we're sleeping.
 5759            for (_, item) in unique_items.into_iter() {
 5760                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5761                    item.serialize(workspace, false, window, cx)
 5762                }) {
 5763                    cx.background_spawn(async move { task.await.log_err() })
 5764                        .detach();
 5765                }
 5766            }
 5767
 5768            cx.background_executor()
 5769                .timer(SERIALIZATION_THROTTLE_TIME)
 5770                .await;
 5771        }
 5772
 5773        Ok(())
 5774    }
 5775
 5776    pub(crate) fn enqueue_item_serialization(
 5777        &mut self,
 5778        item: Box<dyn SerializableItemHandle>,
 5779    ) -> Result<()> {
 5780        self.serializable_items_tx
 5781            .unbounded_send(item)
 5782            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5783    }
 5784
 5785    pub(crate) fn load_workspace(
 5786        serialized_workspace: SerializedWorkspace,
 5787        paths_to_open: Vec<Option<ProjectPath>>,
 5788        window: &mut Window,
 5789        cx: &mut Context<Workspace>,
 5790    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5791        cx.spawn_in(window, async move |workspace, cx| {
 5792            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5793
 5794            let mut center_group = None;
 5795            let mut center_items = None;
 5796
 5797            // Traverse the splits tree and add to things
 5798            if let Some((group, active_pane, items)) = serialized_workspace
 5799                .center_group
 5800                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5801                .await
 5802            {
 5803                center_items = Some(items);
 5804                center_group = Some((group, active_pane))
 5805            }
 5806
 5807            let mut items_by_project_path = HashMap::default();
 5808            let mut item_ids_by_kind = HashMap::default();
 5809            let mut all_deserialized_items = Vec::default();
 5810            cx.update(|_, cx| {
 5811                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5812                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5813                        item_ids_by_kind
 5814                            .entry(serializable_item_handle.serialized_item_kind())
 5815                            .or_insert(Vec::new())
 5816                            .push(item.item_id().as_u64() as ItemId);
 5817                    }
 5818
 5819                    if let Some(project_path) = item.project_path(cx) {
 5820                        items_by_project_path.insert(project_path, item.clone());
 5821                    }
 5822                    all_deserialized_items.push(item);
 5823                }
 5824            })?;
 5825
 5826            let opened_items = paths_to_open
 5827                .into_iter()
 5828                .map(|path_to_open| {
 5829                    path_to_open
 5830                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5831                })
 5832                .collect::<Vec<_>>();
 5833
 5834            // Remove old panes from workspace panes list
 5835            workspace.update_in(cx, |workspace, window, cx| {
 5836                if let Some((center_group, active_pane)) = center_group {
 5837                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5838
 5839                    // Swap workspace center group
 5840                    workspace.center = PaneGroup::with_root(center_group);
 5841                    workspace.center.set_is_center(true);
 5842                    workspace.center.mark_positions(cx);
 5843
 5844                    if let Some(active_pane) = active_pane {
 5845                        workspace.set_active_pane(&active_pane, window, cx);
 5846                        cx.focus_self(window);
 5847                    } else {
 5848                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5849                    }
 5850                }
 5851
 5852                let docks = serialized_workspace.docks;
 5853
 5854                for (dock, serialized_dock) in [
 5855                    (&mut workspace.right_dock, docks.right),
 5856                    (&mut workspace.left_dock, docks.left),
 5857                    (&mut workspace.bottom_dock, docks.bottom),
 5858                ]
 5859                .iter_mut()
 5860                {
 5861                    dock.update(cx, |dock, cx| {
 5862                        dock.serialized_dock = Some(serialized_dock.clone());
 5863                        dock.restore_state(window, cx);
 5864                    });
 5865                }
 5866
 5867                cx.notify();
 5868            })?;
 5869
 5870            let _ = project
 5871                .update(cx, |project, cx| {
 5872                    project
 5873                        .breakpoint_store()
 5874                        .update(cx, |breakpoint_store, cx| {
 5875                            breakpoint_store
 5876                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5877                        })
 5878                })?
 5879                .await;
 5880
 5881            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5882            // after loading the items, we might have different items and in order to avoid
 5883            // the database filling up, we delete items that haven't been loaded now.
 5884            //
 5885            // The items that have been loaded, have been saved after they've been added to the workspace.
 5886            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5887                item_ids_by_kind
 5888                    .into_iter()
 5889                    .map(|(item_kind, loaded_items)| {
 5890                        SerializableItemRegistry::cleanup(
 5891                            item_kind,
 5892                            serialized_workspace.id,
 5893                            loaded_items,
 5894                            window,
 5895                            cx,
 5896                        )
 5897                        .log_err()
 5898                    })
 5899                    .collect::<Vec<_>>()
 5900            })?;
 5901
 5902            futures::future::join_all(clean_up_tasks).await;
 5903
 5904            workspace
 5905                .update_in(cx, |workspace, window, cx| {
 5906                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5907                    workspace.serialize_workspace_internal(window, cx).detach();
 5908
 5909                    // Ensure that we mark the window as edited if we did load dirty items
 5910                    workspace.update_window_edited(window, cx);
 5911                })
 5912                .ok();
 5913
 5914            Ok(opened_items)
 5915        })
 5916    }
 5917
 5918    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5919        self.add_workspace_actions_listeners(div, window, cx)
 5920            .on_action(cx.listener(
 5921                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5922                    for action in &action_sequence.0 {
 5923                        window.dispatch_action(action.boxed_clone(), cx);
 5924                    }
 5925                },
 5926            ))
 5927            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5928            .on_action(cx.listener(Self::close_all_items_and_panes))
 5929            .on_action(cx.listener(Self::save_all))
 5930            .on_action(cx.listener(Self::send_keystrokes))
 5931            .on_action(cx.listener(Self::add_folder_to_project))
 5932            .on_action(cx.listener(Self::follow_next_collaborator))
 5933            .on_action(cx.listener(Self::close_window))
 5934            .on_action(cx.listener(Self::activate_pane_at_index))
 5935            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5936            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5937            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5938            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5939                let pane = workspace.active_pane().clone();
 5940                workspace.unfollow_in_pane(&pane, window, cx);
 5941            }))
 5942            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5943                workspace
 5944                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5945                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5946            }))
 5947            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5948                workspace
 5949                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5950                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5951            }))
 5952            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5953                workspace
 5954                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5955                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5956            }))
 5957            .on_action(
 5958                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5959                    workspace.activate_previous_pane(window, cx)
 5960                }),
 5961            )
 5962            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5963                workspace.activate_next_pane(window, cx)
 5964            }))
 5965            .on_action(
 5966                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5967                    workspace.activate_next_window(cx)
 5968                }),
 5969            )
 5970            .on_action(
 5971                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5972                    workspace.activate_previous_window(cx)
 5973                }),
 5974            )
 5975            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5976                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5977            }))
 5978            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5979                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5980            }))
 5981            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5982                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5983            }))
 5984            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5985                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5986            }))
 5987            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5988                workspace.activate_next_pane(window, cx)
 5989            }))
 5990            .on_action(cx.listener(
 5991                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5992                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5993                },
 5994            ))
 5995            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5996                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5997            }))
 5998            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5999                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6000            }))
 6001            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6002                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6003            }))
 6004            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6005                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6006            }))
 6007            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6008                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6009                    SplitDirection::Down,
 6010                    SplitDirection::Up,
 6011                    SplitDirection::Right,
 6012                    SplitDirection::Left,
 6013                ];
 6014                for dir in DIRECTION_PRIORITY {
 6015                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6016                        workspace.swap_pane_in_direction(dir, cx);
 6017                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6018                        break;
 6019                    }
 6020                }
 6021            }))
 6022            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6023                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6024            }))
 6025            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6026                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6027            }))
 6028            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6029                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6030            }))
 6031            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6032                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6033            }))
 6034            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6035                this.toggle_dock(DockPosition::Left, window, cx);
 6036            }))
 6037            .on_action(cx.listener(
 6038                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6039                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6040                },
 6041            ))
 6042            .on_action(cx.listener(
 6043                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6044                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6045                },
 6046            ))
 6047            .on_action(cx.listener(
 6048                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6049                    if !workspace.close_active_dock(window, cx) {
 6050                        cx.propagate();
 6051                    }
 6052                },
 6053            ))
 6054            .on_action(
 6055                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6056                    workspace.close_all_docks(window, cx);
 6057                }),
 6058            )
 6059            .on_action(cx.listener(Self::toggle_all_docks))
 6060            .on_action(cx.listener(
 6061                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6062                    workspace.clear_all_notifications(cx);
 6063                },
 6064            ))
 6065            .on_action(cx.listener(
 6066                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6067                    workspace.clear_navigation_history(window, cx);
 6068                },
 6069            ))
 6070            .on_action(cx.listener(
 6071                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6072                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6073                        workspace.suppress_notification(&notification_id, cx);
 6074                    }
 6075                },
 6076            ))
 6077            .on_action(cx.listener(
 6078                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6079                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6080                },
 6081            ))
 6082            .on_action(
 6083                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6084                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6085                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6086                            trusted_worktrees.clear_trusted_paths()
 6087                        });
 6088                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6089                        cx.spawn(async move |_, cx| {
 6090                            if clear_task.await.log_err().is_some() {
 6091                                cx.update(|cx| reload(cx)).ok();
 6092                            }
 6093                        })
 6094                        .detach();
 6095                    }
 6096                }),
 6097            )
 6098            .on_action(cx.listener(
 6099                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6100                    workspace.reopen_closed_item(window, cx).detach();
 6101                },
 6102            ))
 6103            .on_action(cx.listener(
 6104                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6105                    for dock in workspace.all_docks() {
 6106                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6107                            let Some(panel) = dock.read(cx).active_panel() else {
 6108                                return;
 6109                            };
 6110
 6111                            // Set to `None`, then the size will fall back to the default.
 6112                            panel.clone().set_size(None, window, cx);
 6113
 6114                            return;
 6115                        }
 6116                    }
 6117                },
 6118            ))
 6119            .on_action(cx.listener(
 6120                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6121                    for dock in workspace.all_docks() {
 6122                        if let Some(panel) = dock.read(cx).visible_panel() {
 6123                            // Set to `None`, then the size will fall back to the default.
 6124                            panel.clone().set_size(None, window, cx);
 6125                        }
 6126                    }
 6127                },
 6128            ))
 6129            .on_action(cx.listener(
 6130                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6131                    adjust_active_dock_size_by_px(
 6132                        px_with_ui_font_fallback(act.px, cx),
 6133                        workspace,
 6134                        window,
 6135                        cx,
 6136                    );
 6137                },
 6138            ))
 6139            .on_action(cx.listener(
 6140                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6141                    adjust_active_dock_size_by_px(
 6142                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6143                        workspace,
 6144                        window,
 6145                        cx,
 6146                    );
 6147                },
 6148            ))
 6149            .on_action(cx.listener(
 6150                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6151                    adjust_open_docks_size_by_px(
 6152                        px_with_ui_font_fallback(act.px, cx),
 6153                        workspace,
 6154                        window,
 6155                        cx,
 6156                    );
 6157                },
 6158            ))
 6159            .on_action(cx.listener(
 6160                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6161                    adjust_open_docks_size_by_px(
 6162                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6163                        workspace,
 6164                        window,
 6165                        cx,
 6166                    );
 6167                },
 6168            ))
 6169            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6170            .on_action(cx.listener(
 6171                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6172                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6173                        let dock = active_dock.read(cx);
 6174                        if let Some(active_panel) = dock.active_panel() {
 6175                            if active_panel.pane(cx).is_none() {
 6176                                let mut recent_pane: Option<Entity<Pane>> = None;
 6177                                let mut recent_timestamp = 0;
 6178                                for pane_handle in workspace.panes() {
 6179                                    let pane = pane_handle.read(cx);
 6180                                    for entry in pane.activation_history() {
 6181                                        if entry.timestamp > recent_timestamp {
 6182                                            recent_timestamp = entry.timestamp;
 6183                                            recent_pane = Some(pane_handle.clone());
 6184                                        }
 6185                                    }
 6186                                }
 6187
 6188                                if let Some(pane) = recent_pane {
 6189                                    pane.update(cx, |pane, cx| {
 6190                                        let current_index = pane.active_item_index();
 6191                                        let items_len = pane.items_len();
 6192                                        if items_len > 0 {
 6193                                            let next_index = if current_index + 1 < items_len {
 6194                                                current_index + 1
 6195                                            } else {
 6196                                                0
 6197                                            };
 6198                                            pane.activate_item(
 6199                                                next_index, false, false, window, cx,
 6200                                            );
 6201                                        }
 6202                                    });
 6203                                    return;
 6204                                }
 6205                            }
 6206                        }
 6207                    }
 6208                    cx.propagate();
 6209                },
 6210            ))
 6211            .on_action(cx.listener(
 6212                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6213                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6214                        let dock = active_dock.read(cx);
 6215                        if let Some(active_panel) = dock.active_panel() {
 6216                            if active_panel.pane(cx).is_none() {
 6217                                let mut recent_pane: Option<Entity<Pane>> = None;
 6218                                let mut recent_timestamp = 0;
 6219                                for pane_handle in workspace.panes() {
 6220                                    let pane = pane_handle.read(cx);
 6221                                    for entry in pane.activation_history() {
 6222                                        if entry.timestamp > recent_timestamp {
 6223                                            recent_timestamp = entry.timestamp;
 6224                                            recent_pane = Some(pane_handle.clone());
 6225                                        }
 6226                                    }
 6227                                }
 6228
 6229                                if let Some(pane) = recent_pane {
 6230                                    pane.update(cx, |pane, cx| {
 6231                                        let current_index = pane.active_item_index();
 6232                                        let items_len = pane.items_len();
 6233                                        if items_len > 0 {
 6234                                            let prev_index = if current_index > 0 {
 6235                                                current_index - 1
 6236                                            } else {
 6237                                                items_len.saturating_sub(1)
 6238                                            };
 6239                                            pane.activate_item(
 6240                                                prev_index, false, false, window, cx,
 6241                                            );
 6242                                        }
 6243                                    });
 6244                                    return;
 6245                                }
 6246                            }
 6247                        }
 6248                    }
 6249                    cx.propagate();
 6250                },
 6251            ))
 6252            .on_action(cx.listener(Workspace::cancel))
 6253    }
 6254
 6255    #[cfg(any(test, feature = "test-support"))]
 6256    pub fn set_random_database_id(&mut self) {
 6257        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6258    }
 6259
 6260    #[cfg(any(test, feature = "test-support"))]
 6261    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6262        use node_runtime::NodeRuntime;
 6263        use session::Session;
 6264
 6265        let client = project.read(cx).client();
 6266        let user_store = project.read(cx).user_store();
 6267        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6268        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6269        window.activate_window();
 6270        let app_state = Arc::new(AppState {
 6271            languages: project.read(cx).languages().clone(),
 6272            workspace_store,
 6273            client,
 6274            user_store,
 6275            fs: project.read(cx).fs().clone(),
 6276            build_window_options: |_, _| Default::default(),
 6277            node_runtime: NodeRuntime::unavailable(),
 6278            session,
 6279        });
 6280        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6281        workspace
 6282            .active_pane
 6283            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6284        workspace
 6285    }
 6286
 6287    pub fn register_action<A: Action>(
 6288        &mut self,
 6289        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6290    ) -> &mut Self {
 6291        let callback = Arc::new(callback);
 6292
 6293        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6294            let callback = callback.clone();
 6295            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6296                (callback)(workspace, event, window, cx)
 6297            }))
 6298        }));
 6299        self
 6300    }
 6301    pub fn register_action_renderer(
 6302        &mut self,
 6303        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6304    ) -> &mut Self {
 6305        self.workspace_actions.push(Box::new(callback));
 6306        self
 6307    }
 6308
 6309    fn add_workspace_actions_listeners(
 6310        &self,
 6311        mut div: Div,
 6312        window: &mut Window,
 6313        cx: &mut Context<Self>,
 6314    ) -> Div {
 6315        for action in self.workspace_actions.iter() {
 6316            div = (action)(div, self, window, cx)
 6317        }
 6318        div
 6319    }
 6320
 6321    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6322        self.modal_layer.read(cx).has_active_modal()
 6323    }
 6324
 6325    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6326        self.modal_layer.read(cx).active_modal()
 6327    }
 6328
 6329    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6330    where
 6331        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6332    {
 6333        self.modal_layer.update(cx, |modal_layer, cx| {
 6334            modal_layer.toggle_modal(window, cx, build)
 6335        })
 6336    }
 6337
 6338    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6339        self.modal_layer
 6340            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6341    }
 6342
 6343    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6344        self.toast_layer
 6345            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6346    }
 6347
 6348    pub fn toggle_centered_layout(
 6349        &mut self,
 6350        _: &ToggleCenteredLayout,
 6351        _: &mut Window,
 6352        cx: &mut Context<Self>,
 6353    ) {
 6354        self.centered_layout = !self.centered_layout;
 6355        if let Some(database_id) = self.database_id() {
 6356            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6357                .detach_and_log_err(cx);
 6358        }
 6359        cx.notify();
 6360    }
 6361
 6362    fn adjust_padding(padding: Option<f32>) -> f32 {
 6363        padding
 6364            .unwrap_or(CenteredPaddingSettings::default().0)
 6365            .clamp(
 6366                CenteredPaddingSettings::MIN_PADDING,
 6367                CenteredPaddingSettings::MAX_PADDING,
 6368            )
 6369    }
 6370
 6371    fn render_dock(
 6372        &self,
 6373        position: DockPosition,
 6374        dock: &Entity<Dock>,
 6375        window: &mut Window,
 6376        cx: &mut App,
 6377    ) -> Option<Div> {
 6378        if self.zoomed_position == Some(position) {
 6379            return None;
 6380        }
 6381
 6382        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6383            let pane = panel.pane(cx)?;
 6384            let follower_states = &self.follower_states;
 6385            leader_border_for_pane(follower_states, &pane, window, cx)
 6386        });
 6387
 6388        Some(
 6389            div()
 6390                .flex()
 6391                .flex_none()
 6392                .overflow_hidden()
 6393                .child(dock.clone())
 6394                .children(leader_border),
 6395        )
 6396    }
 6397
 6398    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6399        window.root().flatten()
 6400    }
 6401
 6402    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6403        self.zoomed.as_ref()
 6404    }
 6405
 6406    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6407        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6408            return;
 6409        };
 6410        let windows = cx.windows();
 6411        let next_window =
 6412            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6413                || {
 6414                    windows
 6415                        .iter()
 6416                        .cycle()
 6417                        .skip_while(|window| window.window_id() != current_window_id)
 6418                        .nth(1)
 6419                },
 6420            );
 6421
 6422        if let Some(window) = next_window {
 6423            window
 6424                .update(cx, |_, window, _| window.activate_window())
 6425                .ok();
 6426        }
 6427    }
 6428
 6429    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6430        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6431            return;
 6432        };
 6433        let windows = cx.windows();
 6434        let prev_window =
 6435            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6436                || {
 6437                    windows
 6438                        .iter()
 6439                        .rev()
 6440                        .cycle()
 6441                        .skip_while(|window| window.window_id() != current_window_id)
 6442                        .nth(1)
 6443                },
 6444            );
 6445
 6446        if let Some(window) = prev_window {
 6447            window
 6448                .update(cx, |_, window, _| window.activate_window())
 6449                .ok();
 6450        }
 6451    }
 6452
 6453    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6454        if cx.stop_active_drag(window) {
 6455        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6456            dismiss_app_notification(&notification_id, cx);
 6457        } else {
 6458            cx.propagate();
 6459        }
 6460    }
 6461
 6462    fn adjust_dock_size_by_px(
 6463        &mut self,
 6464        panel_size: Pixels,
 6465        dock_pos: DockPosition,
 6466        px: Pixels,
 6467        window: &mut Window,
 6468        cx: &mut Context<Self>,
 6469    ) {
 6470        match dock_pos {
 6471            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6472            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6473            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6474        }
 6475    }
 6476
 6477    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6478        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6479
 6480        self.left_dock.update(cx, |left_dock, cx| {
 6481            if WorkspaceSettings::get_global(cx)
 6482                .resize_all_panels_in_dock
 6483                .contains(&DockPosition::Left)
 6484            {
 6485                left_dock.resize_all_panels(Some(size), window, cx);
 6486            } else {
 6487                left_dock.resize_active_panel(Some(size), window, cx);
 6488            }
 6489        });
 6490        self.clamp_utility_pane_widths(window, cx);
 6491    }
 6492
 6493    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6494        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6495        self.left_dock.read_with(cx, |left_dock, cx| {
 6496            let left_dock_size = left_dock
 6497                .active_panel_size(window, cx)
 6498                .unwrap_or(Pixels::ZERO);
 6499            if left_dock_size + size > self.bounds.right() {
 6500                size = self.bounds.right() - left_dock_size
 6501            }
 6502        });
 6503        self.right_dock.update(cx, |right_dock, cx| {
 6504            if WorkspaceSettings::get_global(cx)
 6505                .resize_all_panels_in_dock
 6506                .contains(&DockPosition::Right)
 6507            {
 6508                right_dock.resize_all_panels(Some(size), window, cx);
 6509            } else {
 6510                right_dock.resize_active_panel(Some(size), window, cx);
 6511            }
 6512        });
 6513        self.clamp_utility_pane_widths(window, cx);
 6514    }
 6515
 6516    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6517        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6518        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6519            if WorkspaceSettings::get_global(cx)
 6520                .resize_all_panels_in_dock
 6521                .contains(&DockPosition::Bottom)
 6522            {
 6523                bottom_dock.resize_all_panels(Some(size), window, cx);
 6524            } else {
 6525                bottom_dock.resize_active_panel(Some(size), window, cx);
 6526            }
 6527        });
 6528        self.clamp_utility_pane_widths(window, cx);
 6529    }
 6530
 6531    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6532        let left_dock_width = self
 6533            .left_dock
 6534            .read(cx)
 6535            .active_panel_size(window, cx)
 6536            .unwrap_or(px(0.0));
 6537        let right_dock_width = self
 6538            .right_dock
 6539            .read(cx)
 6540            .active_panel_size(window, cx)
 6541            .unwrap_or(px(0.0));
 6542        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6543        center_pane_width - px(10.0)
 6544    }
 6545
 6546    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6547        let max_width = self.max_utility_pane_width(window, cx);
 6548
 6549        // Clamp left slot utility pane if it exists
 6550        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6551            let current_width = handle.width(cx);
 6552            if current_width > max_width {
 6553                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6554            }
 6555        }
 6556
 6557        // Clamp right slot utility pane if it exists
 6558        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6559            let current_width = handle.width(cx);
 6560            if current_width > max_width {
 6561                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6562            }
 6563        }
 6564    }
 6565
 6566    fn toggle_edit_predictions_all_files(
 6567        &mut self,
 6568        _: &ToggleEditPrediction,
 6569        _window: &mut Window,
 6570        cx: &mut Context<Self>,
 6571    ) {
 6572        let fs = self.project().read(cx).fs().clone();
 6573        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6574        update_settings_file(fs, cx, move |file, _| {
 6575            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6576        });
 6577    }
 6578
 6579    pub fn show_worktree_trust_security_modal(
 6580        &mut self,
 6581        toggle: bool,
 6582        window: &mut Window,
 6583        cx: &mut Context<Self>,
 6584    ) {
 6585        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6586            if toggle {
 6587                security_modal.update(cx, |security_modal, cx| {
 6588                    security_modal.dismiss(cx);
 6589                })
 6590            } else {
 6591                security_modal.update(cx, |security_modal, cx| {
 6592                    security_modal.refresh_restricted_paths(cx);
 6593                });
 6594            }
 6595        } else {
 6596            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6597                .map(|trusted_worktrees| {
 6598                    trusted_worktrees
 6599                        .read(cx)
 6600                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6601                })
 6602                .unwrap_or(false);
 6603            if has_restricted_worktrees {
 6604                let project = self.project().read(cx);
 6605                let remote_host = project.remote_connection_options(cx);
 6606                let worktree_store = project.worktree_store().downgrade();
 6607                self.toggle_modal(window, cx, |_, cx| {
 6608                    SecurityModal::new(worktree_store, remote_host, cx)
 6609                });
 6610            }
 6611        }
 6612    }
 6613
 6614    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6615        self.update_window_title(window, cx);
 6616        self.serialize_workspace(window, cx);
 6617        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6618        self.update_history(cx);
 6619    }
 6620}
 6621
 6622fn leader_border_for_pane(
 6623    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6624    pane: &Entity<Pane>,
 6625    _: &Window,
 6626    cx: &App,
 6627) -> Option<Div> {
 6628    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6629        if state.pane() == pane {
 6630            Some((*leader_id, state))
 6631        } else {
 6632            None
 6633        }
 6634    })?;
 6635
 6636    let mut leader_color = match leader_id {
 6637        CollaboratorId::PeerId(leader_peer_id) => {
 6638            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6639            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6640
 6641            cx.theme()
 6642                .players()
 6643                .color_for_participant(leader.participant_index.0)
 6644                .cursor
 6645        }
 6646        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6647    };
 6648    leader_color.fade_out(0.3);
 6649    Some(
 6650        div()
 6651            .absolute()
 6652            .size_full()
 6653            .left_0()
 6654            .top_0()
 6655            .border_2()
 6656            .border_color(leader_color),
 6657    )
 6658}
 6659
 6660fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6661    ZED_WINDOW_POSITION
 6662        .zip(*ZED_WINDOW_SIZE)
 6663        .map(|(position, size)| Bounds {
 6664            origin: position,
 6665            size,
 6666        })
 6667}
 6668
 6669fn open_items(
 6670    serialized_workspace: Option<SerializedWorkspace>,
 6671    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6672    window: &mut Window,
 6673    cx: &mut Context<Workspace>,
 6674) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6675    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6676        Workspace::load_workspace(
 6677            serialized_workspace,
 6678            project_paths_to_open
 6679                .iter()
 6680                .map(|(_, project_path)| project_path)
 6681                .cloned()
 6682                .collect(),
 6683            window,
 6684            cx,
 6685        )
 6686    });
 6687
 6688    cx.spawn_in(window, async move |workspace, cx| {
 6689        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6690
 6691        if let Some(restored_items) = restored_items {
 6692            let restored_items = restored_items.await?;
 6693
 6694            let restored_project_paths = restored_items
 6695                .iter()
 6696                .filter_map(|item| {
 6697                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6698                        .ok()
 6699                        .flatten()
 6700                })
 6701                .collect::<HashSet<_>>();
 6702
 6703            for restored_item in restored_items {
 6704                opened_items.push(restored_item.map(Ok));
 6705            }
 6706
 6707            project_paths_to_open
 6708                .iter_mut()
 6709                .for_each(|(_, project_path)| {
 6710                    if let Some(project_path_to_open) = project_path
 6711                        && restored_project_paths.contains(project_path_to_open)
 6712                    {
 6713                        *project_path = None;
 6714                    }
 6715                });
 6716        } else {
 6717            for _ in 0..project_paths_to_open.len() {
 6718                opened_items.push(None);
 6719            }
 6720        }
 6721        assert!(opened_items.len() == project_paths_to_open.len());
 6722
 6723        let tasks =
 6724            project_paths_to_open
 6725                .into_iter()
 6726                .enumerate()
 6727                .map(|(ix, (abs_path, project_path))| {
 6728                    let workspace = workspace.clone();
 6729                    cx.spawn(async move |cx| {
 6730                        let file_project_path = project_path?;
 6731                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6732                            workspace.project().update(cx, |project, cx| {
 6733                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6734                            })
 6735                        });
 6736
 6737                        // We only want to open file paths here. If one of the items
 6738                        // here is a directory, it was already opened further above
 6739                        // with a `find_or_create_worktree`.
 6740                        if let Ok(task) = abs_path_task
 6741                            && task.await.is_none_or(|p| p.is_file())
 6742                        {
 6743                            return Some((
 6744                                ix,
 6745                                workspace
 6746                                    .update_in(cx, |workspace, window, cx| {
 6747                                        workspace.open_path(
 6748                                            file_project_path,
 6749                                            None,
 6750                                            true,
 6751                                            window,
 6752                                            cx,
 6753                                        )
 6754                                    })
 6755                                    .log_err()?
 6756                                    .await,
 6757                            ));
 6758                        }
 6759                        None
 6760                    })
 6761                });
 6762
 6763        let tasks = tasks.collect::<Vec<_>>();
 6764
 6765        let tasks = futures::future::join_all(tasks);
 6766        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6767            opened_items[ix] = Some(path_open_result);
 6768        }
 6769
 6770        Ok(opened_items)
 6771    })
 6772}
 6773
 6774enum ActivateInDirectionTarget {
 6775    Pane(Entity<Pane>),
 6776    Dock(Entity<Dock>),
 6777}
 6778
 6779fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6780    workspace
 6781        .update(cx, |workspace, _, cx| {
 6782            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6783                struct DatabaseFailedNotification;
 6784
 6785                workspace.show_notification(
 6786                    NotificationId::unique::<DatabaseFailedNotification>(),
 6787                    cx,
 6788                    |cx| {
 6789                        cx.new(|cx| {
 6790                            MessageNotification::new("Failed to load the database file.", cx)
 6791                                .primary_message("File an Issue")
 6792                                .primary_icon(IconName::Plus)
 6793                                .primary_on_click(|window, cx| {
 6794                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6795                                })
 6796                        })
 6797                    },
 6798                );
 6799            }
 6800        })
 6801        .log_err();
 6802}
 6803
 6804fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6805    if val == 0 {
 6806        ThemeSettings::get_global(cx).ui_font_size(cx)
 6807    } else {
 6808        px(val as f32)
 6809    }
 6810}
 6811
 6812fn adjust_active_dock_size_by_px(
 6813    px: Pixels,
 6814    workspace: &mut Workspace,
 6815    window: &mut Window,
 6816    cx: &mut Context<Workspace>,
 6817) {
 6818    let Some(active_dock) = workspace
 6819        .all_docks()
 6820        .into_iter()
 6821        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6822    else {
 6823        return;
 6824    };
 6825    let dock = active_dock.read(cx);
 6826    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6827        return;
 6828    };
 6829    let dock_pos = dock.position();
 6830    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6831}
 6832
 6833fn adjust_open_docks_size_by_px(
 6834    px: Pixels,
 6835    workspace: &mut Workspace,
 6836    window: &mut Window,
 6837    cx: &mut Context<Workspace>,
 6838) {
 6839    let docks = workspace
 6840        .all_docks()
 6841        .into_iter()
 6842        .filter_map(|dock| {
 6843            if dock.read(cx).is_open() {
 6844                let dock = dock.read(cx);
 6845                let panel_size = dock.active_panel_size(window, cx)?;
 6846                let dock_pos = dock.position();
 6847                Some((panel_size, dock_pos, px))
 6848            } else {
 6849                None
 6850            }
 6851        })
 6852        .collect::<Vec<_>>();
 6853
 6854    docks
 6855        .into_iter()
 6856        .for_each(|(panel_size, dock_pos, offset)| {
 6857            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6858        });
 6859}
 6860
 6861impl Focusable for Workspace {
 6862    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6863        self.active_pane.focus_handle(cx)
 6864    }
 6865}
 6866
 6867#[derive(Clone)]
 6868struct DraggedDock(DockPosition);
 6869
 6870impl Render for DraggedDock {
 6871    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6872        gpui::Empty
 6873    }
 6874}
 6875
 6876impl Render for Workspace {
 6877    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6878        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6879        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6880            log::info!("Rendered first frame");
 6881        }
 6882        let mut context = KeyContext::new_with_defaults();
 6883        context.add("Workspace");
 6884        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6885        if let Some(status) = self
 6886            .debugger_provider
 6887            .as_ref()
 6888            .and_then(|provider| provider.active_thread_state(cx))
 6889        {
 6890            match status {
 6891                ThreadStatus::Running | ThreadStatus::Stepping => {
 6892                    context.add("debugger_running");
 6893                }
 6894                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6895                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6896            }
 6897        }
 6898
 6899        if self.left_dock.read(cx).is_open() {
 6900            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6901                context.set("left_dock", active_panel.panel_key());
 6902            }
 6903        }
 6904
 6905        if self.right_dock.read(cx).is_open() {
 6906            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6907                context.set("right_dock", active_panel.panel_key());
 6908            }
 6909        }
 6910
 6911        if self.bottom_dock.read(cx).is_open() {
 6912            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6913                context.set("bottom_dock", active_panel.panel_key());
 6914            }
 6915        }
 6916
 6917        let centered_layout = self.centered_layout
 6918            && self.center.panes().len() == 1
 6919            && self.active_item(cx).is_some();
 6920        let render_padding = |size| {
 6921            (size > 0.0).then(|| {
 6922                div()
 6923                    .h_full()
 6924                    .w(relative(size))
 6925                    .bg(cx.theme().colors().editor_background)
 6926                    .border_color(cx.theme().colors().pane_group_border)
 6927            })
 6928        };
 6929        let paddings = if centered_layout {
 6930            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6931            (
 6932                render_padding(Self::adjust_padding(
 6933                    settings.left_padding.map(|padding| padding.0),
 6934                )),
 6935                render_padding(Self::adjust_padding(
 6936                    settings.right_padding.map(|padding| padding.0),
 6937                )),
 6938            )
 6939        } else {
 6940            (None, None)
 6941        };
 6942        let ui_font = theme::setup_ui_font(window, cx);
 6943
 6944        let theme = cx.theme().clone();
 6945        let colors = theme.colors();
 6946        let notification_entities = self
 6947            .notifications
 6948            .iter()
 6949            .map(|(_, notification)| notification.entity_id())
 6950            .collect::<Vec<_>>();
 6951        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6952
 6953        client_side_decorations(
 6954            self.actions(div(), window, cx)
 6955                .key_context(context)
 6956                .relative()
 6957                .size_full()
 6958                .flex()
 6959                .flex_col()
 6960                .font(ui_font)
 6961                .gap_0()
 6962                .justify_start()
 6963                .items_start()
 6964                .text_color(colors.text)
 6965                .overflow_hidden()
 6966                .children(self.titlebar_item.clone())
 6967                .on_modifiers_changed(move |_, _, cx| {
 6968                    for &id in &notification_entities {
 6969                        cx.notify(id);
 6970                    }
 6971                })
 6972                .child(
 6973                    div()
 6974                        .size_full()
 6975                        .relative()
 6976                        .flex_1()
 6977                        .flex()
 6978                        .flex_col()
 6979                        .child(
 6980                            div()
 6981                                .id("workspace")
 6982                                .bg(colors.background)
 6983                                .relative()
 6984                                .flex_1()
 6985                                .w_full()
 6986                                .flex()
 6987                                .flex_col()
 6988                                .overflow_hidden()
 6989                                .border_t_1()
 6990                                .border_b_1()
 6991                                .border_color(colors.border)
 6992                                .child({
 6993                                    let this = cx.entity();
 6994                                    canvas(
 6995                                        move |bounds, window, cx| {
 6996                                            this.update(cx, |this, cx| {
 6997                                                let bounds_changed = this.bounds != bounds;
 6998                                                this.bounds = bounds;
 6999
 7000                                                if bounds_changed {
 7001                                                    this.left_dock.update(cx, |dock, cx| {
 7002                                                        dock.clamp_panel_size(
 7003                                                            bounds.size.width,
 7004                                                            window,
 7005                                                            cx,
 7006                                                        )
 7007                                                    });
 7008
 7009                                                    this.right_dock.update(cx, |dock, cx| {
 7010                                                        dock.clamp_panel_size(
 7011                                                            bounds.size.width,
 7012                                                            window,
 7013                                                            cx,
 7014                                                        )
 7015                                                    });
 7016
 7017                                                    this.bottom_dock.update(cx, |dock, cx| {
 7018                                                        dock.clamp_panel_size(
 7019                                                            bounds.size.height,
 7020                                                            window,
 7021                                                            cx,
 7022                                                        )
 7023                                                    });
 7024                                                }
 7025                                            })
 7026                                        },
 7027                                        |_, _, _, _| {},
 7028                                    )
 7029                                    .absolute()
 7030                                    .size_full()
 7031                                })
 7032                                .when(self.zoomed.is_none(), |this| {
 7033                                    this.on_drag_move(cx.listener(
 7034                                        move |workspace,
 7035                                              e: &DragMoveEvent<DraggedDock>,
 7036                                              window,
 7037                                              cx| {
 7038                                            if workspace.previous_dock_drag_coordinates
 7039                                                != Some(e.event.position)
 7040                                            {
 7041                                                workspace.previous_dock_drag_coordinates =
 7042                                                    Some(e.event.position);
 7043                                                match e.drag(cx).0 {
 7044                                                    DockPosition::Left => {
 7045                                                        workspace.resize_left_dock(
 7046                                                            e.event.position.x
 7047                                                                - workspace.bounds.left(),
 7048                                                            window,
 7049                                                            cx,
 7050                                                        );
 7051                                                    }
 7052                                                    DockPosition::Right => {
 7053                                                        workspace.resize_right_dock(
 7054                                                            workspace.bounds.right()
 7055                                                                - e.event.position.x,
 7056                                                            window,
 7057                                                            cx,
 7058                                                        );
 7059                                                    }
 7060                                                    DockPosition::Bottom => {
 7061                                                        workspace.resize_bottom_dock(
 7062                                                            workspace.bounds.bottom()
 7063                                                                - e.event.position.y,
 7064                                                            window,
 7065                                                            cx,
 7066                                                        );
 7067                                                    }
 7068                                                };
 7069                                                workspace.serialize_workspace(window, cx);
 7070                                            }
 7071                                        },
 7072                                    ))
 7073                                    .on_drag_move(cx.listener(
 7074                                        move |workspace,
 7075                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7076                                              window,
 7077                                              cx| {
 7078                                            let slot = e.drag(cx).0;
 7079                                            match slot {
 7080                                                UtilityPaneSlot::Left => {
 7081                                                    let left_dock_width = workspace.left_dock.read(cx)
 7082                                                        .active_panel_size(window, cx)
 7083                                                        .unwrap_or(gpui::px(0.0));
 7084                                                    let new_width = e.event.position.x
 7085                                                        - workspace.bounds.left()
 7086                                                        - left_dock_width;
 7087                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7088                                                }
 7089                                                UtilityPaneSlot::Right => {
 7090                                                    let right_dock_width = workspace.right_dock.read(cx)
 7091                                                        .active_panel_size(window, cx)
 7092                                                        .unwrap_or(gpui::px(0.0));
 7093                                                    let new_width = workspace.bounds.right()
 7094                                                        - e.event.position.x
 7095                                                        - right_dock_width;
 7096                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7097                                                }
 7098                                            }
 7099                                        },
 7100                                    ))
 7101                                })
 7102                                .child({
 7103                                    match bottom_dock_layout {
 7104                                        BottomDockLayout::Full => div()
 7105                                            .flex()
 7106                                            .flex_col()
 7107                                            .h_full()
 7108                                            .child(
 7109                                                div()
 7110                                                    .flex()
 7111                                                    .flex_row()
 7112                                                    .flex_1()
 7113                                                    .overflow_hidden()
 7114                                                    .children(self.render_dock(
 7115                                                        DockPosition::Left,
 7116                                                        &self.left_dock,
 7117                                                        window,
 7118                                                        cx,
 7119                                                    ))
 7120                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7121                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7122                                                            this.when(pane.expanded(cx), |this| {
 7123                                                                this.child(
 7124                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7125                                                                )
 7126                                                            })
 7127                                                        })
 7128                                                    })
 7129                                                    .child(
 7130                                                        div()
 7131                                                            .flex()
 7132                                                            .flex_col()
 7133                                                            .flex_1()
 7134                                                            .overflow_hidden()
 7135                                                            .child(
 7136                                                                h_flex()
 7137                                                                    .flex_1()
 7138                                                                    .when_some(
 7139                                                                        paddings.0,
 7140                                                                        |this, p| {
 7141                                                                            this.child(
 7142                                                                                p.border_r_1(),
 7143                                                                            )
 7144                                                                        },
 7145                                                                    )
 7146                                                                    .child(self.center.render(
 7147                                                                        self.zoomed.as_ref(),
 7148                                                                        &PaneRenderContext {
 7149                                                                            follower_states:
 7150                                                                                &self.follower_states,
 7151                                                                            active_call: self.active_call(),
 7152                                                                            active_pane: &self.active_pane,
 7153                                                                            app_state: &self.app_state,
 7154                                                                            project: &self.project,
 7155                                                                            workspace: &self.weak_self,
 7156                                                                        },
 7157                                                                        window,
 7158                                                                        cx,
 7159                                                                    ))
 7160                                                                    .when_some(
 7161                                                                        paddings.1,
 7162                                                                        |this, p| {
 7163                                                                            this.child(
 7164                                                                                p.border_l_1(),
 7165                                                                            )
 7166                                                                        },
 7167                                                                    ),
 7168                                                            ),
 7169                                                    )
 7170                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7171                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7172                                                            this.when(pane.expanded(cx), |this| {
 7173                                                                this.child(
 7174                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7175                                                                )
 7176                                                            })
 7177                                                        })
 7178                                                    })
 7179                                                    .children(self.render_dock(
 7180                                                        DockPosition::Right,
 7181                                                        &self.right_dock,
 7182                                                        window,
 7183                                                        cx,
 7184                                                    )),
 7185                                            )
 7186                                            .child(div().w_full().children(self.render_dock(
 7187                                                DockPosition::Bottom,
 7188                                                &self.bottom_dock,
 7189                                                window,
 7190                                                cx
 7191                                            ))),
 7192
 7193                                        BottomDockLayout::LeftAligned => div()
 7194                                            .flex()
 7195                                            .flex_row()
 7196                                            .h_full()
 7197                                            .child(
 7198                                                div()
 7199                                                    .flex()
 7200                                                    .flex_col()
 7201                                                    .flex_1()
 7202                                                    .h_full()
 7203                                                    .child(
 7204                                                        div()
 7205                                                            .flex()
 7206                                                            .flex_row()
 7207                                                            .flex_1()
 7208                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7209                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7210                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7211                                                                    this.when(pane.expanded(cx), |this| {
 7212                                                                        this.child(
 7213                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7214                                                                        )
 7215                                                                    })
 7216                                                                })
 7217                                                            })
 7218                                                            .child(
 7219                                                                div()
 7220                                                                    .flex()
 7221                                                                    .flex_col()
 7222                                                                    .flex_1()
 7223                                                                    .overflow_hidden()
 7224                                                                    .child(
 7225                                                                        h_flex()
 7226                                                                            .flex_1()
 7227                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7228                                                                            .child(self.center.render(
 7229                                                                                self.zoomed.as_ref(),
 7230                                                                                &PaneRenderContext {
 7231                                                                                    follower_states:
 7232                                                                                        &self.follower_states,
 7233                                                                                    active_call: self.active_call(),
 7234                                                                                    active_pane: &self.active_pane,
 7235                                                                                    app_state: &self.app_state,
 7236                                                                                    project: &self.project,
 7237                                                                                    workspace: &self.weak_self,
 7238                                                                                },
 7239                                                                                window,
 7240                                                                                cx,
 7241                                                                            ))
 7242                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7243                                                                    )
 7244                                                            )
 7245                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7246                                                                this.when(pane.expanded(cx), |this| {
 7247                                                                    this.child(
 7248                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7249                                                                    )
 7250                                                                })
 7251                                                            })
 7252                                                    )
 7253                                                    .child(
 7254                                                        div()
 7255                                                            .w_full()
 7256                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7257                                                    ),
 7258                                            )
 7259                                            .children(self.render_dock(
 7260                                                DockPosition::Right,
 7261                                                &self.right_dock,
 7262                                                window,
 7263                                                cx,
 7264                                            )),
 7265
 7266                                        BottomDockLayout::RightAligned => div()
 7267                                            .flex()
 7268                                            .flex_row()
 7269                                            .h_full()
 7270                                            .children(self.render_dock(
 7271                                                DockPosition::Left,
 7272                                                &self.left_dock,
 7273                                                window,
 7274                                                cx,
 7275                                            ))
 7276                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7277                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7278                                                    this.when(pane.expanded(cx), |this| {
 7279                                                        this.child(
 7280                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7281                                                        )
 7282                                                    })
 7283                                                })
 7284                                            })
 7285                                            .child(
 7286                                                div()
 7287                                                    .flex()
 7288                                                    .flex_col()
 7289                                                    .flex_1()
 7290                                                    .h_full()
 7291                                                    .child(
 7292                                                        div()
 7293                                                            .flex()
 7294                                                            .flex_row()
 7295                                                            .flex_1()
 7296                                                            .child(
 7297                                                                div()
 7298                                                                    .flex()
 7299                                                                    .flex_col()
 7300                                                                    .flex_1()
 7301                                                                    .overflow_hidden()
 7302                                                                    .child(
 7303                                                                        h_flex()
 7304                                                                            .flex_1()
 7305                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7306                                                                            .child(self.center.render(
 7307                                                                                self.zoomed.as_ref(),
 7308                                                                                &PaneRenderContext {
 7309                                                                                    follower_states:
 7310                                                                                        &self.follower_states,
 7311                                                                                    active_call: self.active_call(),
 7312                                                                                    active_pane: &self.active_pane,
 7313                                                                                    app_state: &self.app_state,
 7314                                                                                    project: &self.project,
 7315                                                                                    workspace: &self.weak_self,
 7316                                                                                },
 7317                                                                                window,
 7318                                                                                cx,
 7319                                                                            ))
 7320                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7321                                                                    )
 7322                                                            )
 7323                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7324                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7325                                                                    this.when(pane.expanded(cx), |this| {
 7326                                                                        this.child(
 7327                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7328                                                                        )
 7329                                                                    })
 7330                                                                })
 7331                                                            })
 7332                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7333                                                    )
 7334                                                    .child(
 7335                                                        div()
 7336                                                            .w_full()
 7337                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7338                                                    ),
 7339                                            ),
 7340
 7341                                        BottomDockLayout::Contained => div()
 7342                                            .flex()
 7343                                            .flex_row()
 7344                                            .h_full()
 7345                                            .children(self.render_dock(
 7346                                                DockPosition::Left,
 7347                                                &self.left_dock,
 7348                                                window,
 7349                                                cx,
 7350                                            ))
 7351                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7352                                                this.when(pane.expanded(cx), |this| {
 7353                                                    this.child(
 7354                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7355                                                    )
 7356                                                })
 7357                                            })
 7358                                            .child(
 7359                                                div()
 7360                                                    .flex()
 7361                                                    .flex_col()
 7362                                                    .flex_1()
 7363                                                    .overflow_hidden()
 7364                                                    .child(
 7365                                                        h_flex()
 7366                                                            .flex_1()
 7367                                                            .when_some(paddings.0, |this, p| {
 7368                                                                this.child(p.border_r_1())
 7369                                                            })
 7370                                                            .child(self.center.render(
 7371                                                                self.zoomed.as_ref(),
 7372                                                                &PaneRenderContext {
 7373                                                                    follower_states:
 7374                                                                        &self.follower_states,
 7375                                                                    active_call: self.active_call(),
 7376                                                                    active_pane: &self.active_pane,
 7377                                                                    app_state: &self.app_state,
 7378                                                                    project: &self.project,
 7379                                                                    workspace: &self.weak_self,
 7380                                                                },
 7381                                                                window,
 7382                                                                cx,
 7383                                                            ))
 7384                                                            .when_some(paddings.1, |this, p| {
 7385                                                                this.child(p.border_l_1())
 7386                                                            }),
 7387                                                    )
 7388                                                    .children(self.render_dock(
 7389                                                        DockPosition::Bottom,
 7390                                                        &self.bottom_dock,
 7391                                                        window,
 7392                                                        cx,
 7393                                                    )),
 7394                                            )
 7395                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7396                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7397                                                    this.when(pane.expanded(cx), |this| {
 7398                                                        this.child(
 7399                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7400                                                        )
 7401                                                    })
 7402                                                })
 7403                                            })
 7404                                            .children(self.render_dock(
 7405                                                DockPosition::Right,
 7406                                                &self.right_dock,
 7407                                                window,
 7408                                                cx,
 7409                                            )),
 7410                                    }
 7411                                })
 7412                                .children(self.zoomed.as_ref().and_then(|view| {
 7413                                    let zoomed_view = view.upgrade()?;
 7414                                    let div = div()
 7415                                        .occlude()
 7416                                        .absolute()
 7417                                        .overflow_hidden()
 7418                                        .border_color(colors.border)
 7419                                        .bg(colors.background)
 7420                                        .child(zoomed_view)
 7421                                        .inset_0()
 7422                                        .shadow_lg();
 7423
 7424                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7425                                       return Some(div);
 7426                                    }
 7427
 7428                                    Some(match self.zoomed_position {
 7429                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7430                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7431                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7432                                        None => {
 7433                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7434                                        }
 7435                                    })
 7436                                }))
 7437                                .children(self.render_notifications(window, cx)),
 7438                        )
 7439                        .when(self.status_bar_visible(cx), |parent| {
 7440                            parent.child(self.status_bar.clone())
 7441                        })
 7442                        .child(self.modal_layer.clone())
 7443                        .child(self.toast_layer.clone()),
 7444                ),
 7445            window,
 7446            cx,
 7447        )
 7448    }
 7449}
 7450
 7451impl WorkspaceStore {
 7452    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7453        Self {
 7454            workspaces: Default::default(),
 7455            _subscriptions: vec![
 7456                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7457                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7458            ],
 7459            client,
 7460        }
 7461    }
 7462
 7463    pub fn update_followers(
 7464        &self,
 7465        project_id: Option<u64>,
 7466        update: proto::update_followers::Variant,
 7467        cx: &App,
 7468    ) -> Option<()> {
 7469        let active_call = ActiveCall::try_global(cx)?;
 7470        let room_id = active_call.read(cx).room()?.read(cx).id();
 7471        self.client
 7472            .send(proto::UpdateFollowers {
 7473                room_id,
 7474                project_id,
 7475                variant: Some(update),
 7476            })
 7477            .log_err()
 7478    }
 7479
 7480    pub async fn handle_follow(
 7481        this: Entity<Self>,
 7482        envelope: TypedEnvelope<proto::Follow>,
 7483        mut cx: AsyncApp,
 7484    ) -> Result<proto::FollowResponse> {
 7485        this.update(&mut cx, |this, cx| {
 7486            let follower = Follower {
 7487                project_id: envelope.payload.project_id,
 7488                peer_id: envelope.original_sender_id()?,
 7489            };
 7490
 7491            let mut response = proto::FollowResponse::default();
 7492            this.workspaces.retain(|workspace| {
 7493                workspace
 7494                    .update(cx, |workspace, window, cx| {
 7495                        let handler_response =
 7496                            workspace.handle_follow(follower.project_id, window, cx);
 7497                        if let Some(active_view) = handler_response.active_view
 7498                            && workspace.project.read(cx).remote_id() == follower.project_id
 7499                        {
 7500                            response.active_view = Some(active_view)
 7501                        }
 7502                    })
 7503                    .is_ok()
 7504            });
 7505
 7506            Ok(response)
 7507        })?
 7508    }
 7509
 7510    async fn handle_update_followers(
 7511        this: Entity<Self>,
 7512        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7513        mut cx: AsyncApp,
 7514    ) -> Result<()> {
 7515        let leader_id = envelope.original_sender_id()?;
 7516        let update = envelope.payload;
 7517
 7518        this.update(&mut cx, |this, cx| {
 7519            this.workspaces.retain(|workspace| {
 7520                workspace
 7521                    .update(cx, |workspace, window, cx| {
 7522                        let project_id = workspace.project.read(cx).remote_id();
 7523                        if update.project_id != project_id && update.project_id.is_some() {
 7524                            return;
 7525                        }
 7526                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7527                    })
 7528                    .is_ok()
 7529            });
 7530            Ok(())
 7531        })?
 7532    }
 7533
 7534    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7535        &self.workspaces
 7536    }
 7537}
 7538
 7539impl ViewId {
 7540    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7541        Ok(Self {
 7542            creator: message
 7543                .creator
 7544                .map(CollaboratorId::PeerId)
 7545                .context("creator is missing")?,
 7546            id: message.id,
 7547        })
 7548    }
 7549
 7550    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7551        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7552            Some(proto::ViewId {
 7553                creator: Some(peer_id),
 7554                id: self.id,
 7555            })
 7556        } else {
 7557            None
 7558        }
 7559    }
 7560}
 7561
 7562impl FollowerState {
 7563    fn pane(&self) -> &Entity<Pane> {
 7564        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7565    }
 7566}
 7567
 7568pub trait WorkspaceHandle {
 7569    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7570}
 7571
 7572impl WorkspaceHandle for Entity<Workspace> {
 7573    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7574        self.read(cx)
 7575            .worktrees(cx)
 7576            .flat_map(|worktree| {
 7577                let worktree_id = worktree.read(cx).id();
 7578                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7579                    worktree_id,
 7580                    path: f.path.clone(),
 7581                })
 7582            })
 7583            .collect::<Vec<_>>()
 7584    }
 7585}
 7586
 7587pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7588    DB.last_workspace().await.log_err().flatten()
 7589}
 7590
 7591pub fn last_session_workspace_locations(
 7592    last_session_id: &str,
 7593    last_session_window_stack: Option<Vec<WindowId>>,
 7594) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7595    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7596        .log_err()
 7597}
 7598
 7599actions!(
 7600    collab,
 7601    [
 7602        /// Opens the channel notes for the current call.
 7603        ///
 7604        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7605        /// channel in the collab panel.
 7606        ///
 7607        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7608        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7609        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7610        OpenChannelNotes,
 7611        /// Mutes your microphone.
 7612        Mute,
 7613        /// Deafens yourself (mute both microphone and speakers).
 7614        Deafen,
 7615        /// Leaves the current call.
 7616        LeaveCall,
 7617        /// Shares the current project with collaborators.
 7618        ShareProject,
 7619        /// Shares your screen with collaborators.
 7620        ScreenShare,
 7621        /// Copies the current room name and session id for debugging purposes.
 7622        CopyRoomId,
 7623    ]
 7624);
 7625actions!(
 7626    zed,
 7627    [
 7628        /// Opens the Zed log file.
 7629        OpenLog,
 7630        /// Reveals the Zed log file in the system file manager.
 7631        RevealLogInFileManager
 7632    ]
 7633);
 7634
 7635async fn join_channel_internal(
 7636    channel_id: ChannelId,
 7637    app_state: &Arc<AppState>,
 7638    requesting_window: Option<WindowHandle<Workspace>>,
 7639    active_call: &Entity<ActiveCall>,
 7640    cx: &mut AsyncApp,
 7641) -> Result<bool> {
 7642    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7643        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7644            return (false, None);
 7645        };
 7646
 7647        let already_in_channel = room.channel_id() == Some(channel_id);
 7648        let should_prompt = room.is_sharing_project()
 7649            && !room.remote_participants().is_empty()
 7650            && !already_in_channel;
 7651        let open_room = if already_in_channel {
 7652            active_call.room().cloned()
 7653        } else {
 7654            None
 7655        };
 7656        (should_prompt, open_room)
 7657    })?;
 7658
 7659    if let Some(room) = open_room {
 7660        let task = room.update(cx, |room, cx| {
 7661            if let Some((project, host)) = room.most_active_project(cx) {
 7662                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7663            }
 7664
 7665            None
 7666        })?;
 7667        if let Some(task) = task {
 7668            task.await?;
 7669        }
 7670        return anyhow::Ok(true);
 7671    }
 7672
 7673    if should_prompt {
 7674        if let Some(workspace) = requesting_window {
 7675            let answer = workspace
 7676                .update(cx, |_, window, cx| {
 7677                    window.prompt(
 7678                        PromptLevel::Warning,
 7679                        "Do you want to switch channels?",
 7680                        Some("Leaving this call will unshare your current project."),
 7681                        &["Yes, Join Channel", "Cancel"],
 7682                        cx,
 7683                    )
 7684                })?
 7685                .await;
 7686
 7687            if answer == Ok(1) {
 7688                return Ok(false);
 7689            }
 7690        } else {
 7691            return Ok(false); // unreachable!() hopefully
 7692        }
 7693    }
 7694
 7695    let client = cx.update(|cx| active_call.read(cx).client())?;
 7696
 7697    let mut client_status = client.status();
 7698
 7699    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7700    'outer: loop {
 7701        let Some(status) = client_status.recv().await else {
 7702            anyhow::bail!("error connecting");
 7703        };
 7704
 7705        match status {
 7706            Status::Connecting
 7707            | Status::Authenticating
 7708            | Status::Authenticated
 7709            | Status::Reconnecting
 7710            | Status::Reauthenticating
 7711            | Status::Reauthenticated => continue,
 7712            Status::Connected { .. } => break 'outer,
 7713            Status::SignedOut | Status::AuthenticationError => {
 7714                return Err(ErrorCode::SignedOut.into());
 7715            }
 7716            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7717            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7718                return Err(ErrorCode::Disconnected.into());
 7719            }
 7720        }
 7721    }
 7722
 7723    let room = active_call
 7724        .update(cx, |active_call, cx| {
 7725            active_call.join_channel(channel_id, cx)
 7726        })?
 7727        .await?;
 7728
 7729    let Some(room) = room else {
 7730        return anyhow::Ok(true);
 7731    };
 7732
 7733    room.update(cx, |room, _| room.room_update_completed())?
 7734        .await;
 7735
 7736    let task = room.update(cx, |room, cx| {
 7737        if let Some((project, host)) = room.most_active_project(cx) {
 7738            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7739        }
 7740
 7741        // If you are the first to join a channel, see if you should share your project.
 7742        if room.remote_participants().is_empty()
 7743            && !room.local_participant_is_guest()
 7744            && let Some(workspace) = requesting_window
 7745        {
 7746            let project = workspace.update(cx, |workspace, _, cx| {
 7747                let project = workspace.project.read(cx);
 7748
 7749                if !CallSettings::get_global(cx).share_on_join {
 7750                    return None;
 7751                }
 7752
 7753                if (project.is_local() || project.is_via_remote_server())
 7754                    && project.visible_worktrees(cx).any(|tree| {
 7755                        tree.read(cx)
 7756                            .root_entry()
 7757                            .is_some_and(|entry| entry.is_dir())
 7758                    })
 7759                {
 7760                    Some(workspace.project.clone())
 7761                } else {
 7762                    None
 7763                }
 7764            });
 7765            if let Ok(Some(project)) = project {
 7766                return Some(cx.spawn(async move |room, cx| {
 7767                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7768                        .await?;
 7769                    Ok(())
 7770                }));
 7771            }
 7772        }
 7773
 7774        None
 7775    })?;
 7776    if let Some(task) = task {
 7777        task.await?;
 7778        return anyhow::Ok(true);
 7779    }
 7780    anyhow::Ok(false)
 7781}
 7782
 7783pub fn join_channel(
 7784    channel_id: ChannelId,
 7785    app_state: Arc<AppState>,
 7786    requesting_window: Option<WindowHandle<Workspace>>,
 7787    cx: &mut App,
 7788) -> Task<Result<()>> {
 7789    let active_call = ActiveCall::global(cx);
 7790    cx.spawn(async move |cx| {
 7791        let result =
 7792            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7793                .await;
 7794
 7795        // join channel succeeded, and opened a window
 7796        if matches!(result, Ok(true)) {
 7797            return anyhow::Ok(());
 7798        }
 7799
 7800        // find an existing workspace to focus and show call controls
 7801        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7802        if active_window.is_none() {
 7803            // no open workspaces, make one to show the error in (blergh)
 7804            let (window_handle, _) = cx
 7805                .update(|cx| {
 7806                    Workspace::new_local(
 7807                        vec![],
 7808                        app_state.clone(),
 7809                        requesting_window,
 7810                        None,
 7811                        None,
 7812                        cx,
 7813                    )
 7814                })?
 7815                .await?;
 7816
 7817            if result.is_ok() {
 7818                cx.update(|cx| {
 7819                    cx.dispatch_action(&OpenChannelNotes);
 7820                })
 7821                .log_err();
 7822            }
 7823
 7824            active_window = Some(window_handle);
 7825        }
 7826
 7827        if let Err(err) = result {
 7828            log::error!("failed to join channel: {}", err);
 7829            if let Some(active_window) = active_window {
 7830                active_window
 7831                    .update(cx, |_, window, cx| {
 7832                        let detail: SharedString = match err.error_code() {
 7833                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7834                            ErrorCode::UpgradeRequired => concat!(
 7835                                "Your are running an unsupported version of Zed. ",
 7836                                "Please update to continue."
 7837                            )
 7838                            .into(),
 7839                            ErrorCode::NoSuchChannel => concat!(
 7840                                "No matching channel was found. ",
 7841                                "Please check the link and try again."
 7842                            )
 7843                            .into(),
 7844                            ErrorCode::Forbidden => concat!(
 7845                                "This channel is private, and you do not have access. ",
 7846                                "Please ask someone to add you and try again."
 7847                            )
 7848                            .into(),
 7849                            ErrorCode::Disconnected => {
 7850                                "Please check your internet connection and try again.".into()
 7851                            }
 7852                            _ => format!("{}\n\nPlease try again.", err).into(),
 7853                        };
 7854                        window.prompt(
 7855                            PromptLevel::Critical,
 7856                            "Failed to join channel",
 7857                            Some(&detail),
 7858                            &["Ok"],
 7859                            cx,
 7860                        )
 7861                    })?
 7862                    .await
 7863                    .ok();
 7864            }
 7865        }
 7866
 7867        // return ok, we showed the error to the user.
 7868        anyhow::Ok(())
 7869    })
 7870}
 7871
 7872pub async fn get_any_active_workspace(
 7873    app_state: Arc<AppState>,
 7874    mut cx: AsyncApp,
 7875) -> anyhow::Result<WindowHandle<Workspace>> {
 7876    // find an existing workspace to focus and show call controls
 7877    let active_window = activate_any_workspace_window(&mut cx);
 7878    if active_window.is_none() {
 7879        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7880            .await?;
 7881    }
 7882    activate_any_workspace_window(&mut cx).context("could not open zed")
 7883}
 7884
 7885fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7886    cx.update(|cx| {
 7887        if let Some(workspace_window) = cx
 7888            .active_window()
 7889            .and_then(|window| window.downcast::<Workspace>())
 7890        {
 7891            return Some(workspace_window);
 7892        }
 7893
 7894        for window in cx.windows() {
 7895            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7896                workspace_window
 7897                    .update(cx, |_, window, _| window.activate_window())
 7898                    .ok();
 7899                return Some(workspace_window);
 7900            }
 7901        }
 7902        None
 7903    })
 7904    .ok()
 7905    .flatten()
 7906}
 7907
 7908pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7909    cx.windows()
 7910        .into_iter()
 7911        .filter_map(|window| window.downcast::<Workspace>())
 7912        .filter(|workspace| {
 7913            workspace
 7914                .read(cx)
 7915                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7916        })
 7917        .collect()
 7918}
 7919
 7920#[derive(Default)]
 7921pub struct OpenOptions {
 7922    pub visible: Option<OpenVisible>,
 7923    pub focus: Option<bool>,
 7924    pub open_new_workspace: Option<bool>,
 7925    pub prefer_focused_window: bool,
 7926    pub replace_window: Option<WindowHandle<Workspace>>,
 7927    pub env: Option<HashMap<String, String>>,
 7928}
 7929
 7930#[allow(clippy::type_complexity)]
 7931pub fn open_paths(
 7932    abs_paths: &[PathBuf],
 7933    app_state: Arc<AppState>,
 7934    open_options: OpenOptions,
 7935    cx: &mut App,
 7936) -> Task<
 7937    anyhow::Result<(
 7938        WindowHandle<Workspace>,
 7939        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7940    )>,
 7941> {
 7942    let abs_paths = abs_paths.to_vec();
 7943    let mut existing = None;
 7944    let mut best_match = None;
 7945    let mut open_visible = OpenVisible::All;
 7946    #[cfg(target_os = "windows")]
 7947    let wsl_path = abs_paths
 7948        .iter()
 7949        .find_map(|p| util::paths::WslPath::from_path(p));
 7950
 7951    cx.spawn(async move |cx| {
 7952        if open_options.open_new_workspace != Some(true) {
 7953            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7954            let all_metadatas = futures::future::join_all(all_paths)
 7955                .await
 7956                .into_iter()
 7957                .filter_map(|result| result.ok().flatten())
 7958                .collect::<Vec<_>>();
 7959
 7960            cx.update(|cx| {
 7961                for window in local_workspace_windows(cx) {
 7962                    if let Ok(workspace) = window.read(cx) {
 7963                        let m = workspace.project.read(cx).visibility_for_paths(
 7964                            &abs_paths,
 7965                            &all_metadatas,
 7966                            open_options.open_new_workspace == None,
 7967                            cx,
 7968                        );
 7969                        if m > best_match {
 7970                            existing = Some(window);
 7971                            best_match = m;
 7972                        } else if best_match.is_none()
 7973                            && open_options.open_new_workspace == Some(false)
 7974                        {
 7975                            existing = Some(window)
 7976                        }
 7977                    }
 7978                }
 7979            })?;
 7980
 7981            if open_options.open_new_workspace.is_none()
 7982                && (existing.is_none() || open_options.prefer_focused_window)
 7983                && all_metadatas.iter().all(|file| !file.is_dir)
 7984            {
 7985                cx.update(|cx| {
 7986                    if let Some(window) = cx
 7987                        .active_window()
 7988                        .and_then(|window| window.downcast::<Workspace>())
 7989                        && let Ok(workspace) = window.read(cx)
 7990                    {
 7991                        let project = workspace.project().read(cx);
 7992                        if project.is_local() && !project.is_via_collab() {
 7993                            existing = Some(window);
 7994                            open_visible = OpenVisible::None;
 7995                            return;
 7996                        }
 7997                    }
 7998                    for window in local_workspace_windows(cx) {
 7999                        if let Ok(workspace) = window.read(cx) {
 8000                            let project = workspace.project().read(cx);
 8001                            if project.is_via_collab() {
 8002                                continue;
 8003                            }
 8004                            existing = Some(window);
 8005                            open_visible = OpenVisible::None;
 8006                            break;
 8007                        }
 8008                    }
 8009                })?;
 8010            }
 8011        }
 8012
 8013        let result = if let Some(existing) = existing {
 8014            let open_task = existing
 8015                .update(cx, |workspace, window, cx| {
 8016                    window.activate_window();
 8017                    workspace.open_paths(
 8018                        abs_paths,
 8019                        OpenOptions {
 8020                            visible: Some(open_visible),
 8021                            ..Default::default()
 8022                        },
 8023                        None,
 8024                        window,
 8025                        cx,
 8026                    )
 8027                })?
 8028                .await;
 8029
 8030            _ = existing.update(cx, |workspace, _, cx| {
 8031                for item in open_task.iter().flatten() {
 8032                    if let Err(e) = item {
 8033                        workspace.show_error(&e, cx);
 8034                    }
 8035                }
 8036            });
 8037
 8038            Ok((existing, open_task))
 8039        } else {
 8040            cx.update(move |cx| {
 8041                Workspace::new_local(
 8042                    abs_paths,
 8043                    app_state.clone(),
 8044                    open_options.replace_window,
 8045                    open_options.env,
 8046                    None,
 8047                    cx,
 8048                )
 8049            })?
 8050            .await
 8051        };
 8052
 8053        #[cfg(target_os = "windows")]
 8054        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8055            && let Ok((workspace, _)) = &result
 8056        {
 8057            workspace
 8058                .update(cx, move |workspace, _window, cx| {
 8059                    struct OpenInWsl;
 8060                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8061                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8062                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8063                        cx.new(move |cx| {
 8064                            MessageNotification::new(msg, cx)
 8065                                .primary_message("Open in WSL")
 8066                                .primary_icon(IconName::FolderOpen)
 8067                                .primary_on_click(move |window, cx| {
 8068                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8069                                            distro: remote::WslConnectionOptions {
 8070                                                    distro_name: distro.clone(),
 8071                                                user: None,
 8072                                            },
 8073                                            paths: vec![path.clone().into()],
 8074                                        }), cx)
 8075                                })
 8076                        })
 8077                    });
 8078                })
 8079                .unwrap();
 8080        };
 8081        result
 8082    })
 8083}
 8084
 8085pub fn open_new(
 8086    open_options: OpenOptions,
 8087    app_state: Arc<AppState>,
 8088    cx: &mut App,
 8089    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8090) -> Task<anyhow::Result<()>> {
 8091    let task = Workspace::new_local(
 8092        Vec::new(),
 8093        app_state,
 8094        None,
 8095        open_options.env,
 8096        Some(Box::new(init)),
 8097        cx,
 8098    );
 8099    cx.spawn(async move |_cx| {
 8100        let (_workspace, _opened_paths) = task.await?;
 8101        // Init callback is called synchronously during workspace creation
 8102        Ok(())
 8103    })
 8104}
 8105
 8106pub fn create_and_open_local_file(
 8107    path: &'static Path,
 8108    window: &mut Window,
 8109    cx: &mut Context<Workspace>,
 8110    default_content: impl 'static + Send + FnOnce() -> Rope,
 8111) -> Task<Result<Box<dyn ItemHandle>>> {
 8112    cx.spawn_in(window, async move |workspace, cx| {
 8113        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8114        if !fs.is_file(path).await {
 8115            fs.create_file(path, Default::default()).await?;
 8116            fs.save(path, &default_content(), Default::default())
 8117                .await?;
 8118        }
 8119
 8120        let mut items = workspace
 8121            .update_in(cx, |workspace, window, cx| {
 8122                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8123                    workspace.open_paths(
 8124                        vec![path.to_path_buf()],
 8125                        OpenOptions {
 8126                            visible: Some(OpenVisible::None),
 8127                            ..Default::default()
 8128                        },
 8129                        None,
 8130                        window,
 8131                        cx,
 8132                    )
 8133                })
 8134            })?
 8135            .await?
 8136            .await;
 8137
 8138        let item = items.pop().flatten();
 8139        item.with_context(|| format!("path {path:?} is not a file"))?
 8140    })
 8141}
 8142
 8143pub fn open_remote_project_with_new_connection(
 8144    window: WindowHandle<Workspace>,
 8145    remote_connection: Arc<dyn RemoteConnection>,
 8146    cancel_rx: oneshot::Receiver<()>,
 8147    delegate: Arc<dyn RemoteClientDelegate>,
 8148    app_state: Arc<AppState>,
 8149    paths: Vec<PathBuf>,
 8150    cx: &mut App,
 8151) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8152    cx.spawn(async move |cx| {
 8153        let (workspace_id, serialized_workspace) =
 8154            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8155                .await?;
 8156
 8157        let session = match cx
 8158            .update(|cx| {
 8159                remote::RemoteClient::new(
 8160                    ConnectionIdentifier::Workspace(workspace_id.0),
 8161                    remote_connection,
 8162                    cancel_rx,
 8163                    delegate,
 8164                    cx,
 8165                )
 8166            })?
 8167            .await?
 8168        {
 8169            Some(result) => result,
 8170            None => return Ok(Vec::new()),
 8171        };
 8172
 8173        let project = cx.update(|cx| {
 8174            project::Project::remote(
 8175                session,
 8176                app_state.client.clone(),
 8177                app_state.node_runtime.clone(),
 8178                app_state.user_store.clone(),
 8179                app_state.languages.clone(),
 8180                app_state.fs.clone(),
 8181                true,
 8182                cx,
 8183            )
 8184        })?;
 8185
 8186        open_remote_project_inner(
 8187            project,
 8188            paths,
 8189            workspace_id,
 8190            serialized_workspace,
 8191            app_state,
 8192            window,
 8193            cx,
 8194        )
 8195        .await
 8196    })
 8197}
 8198
 8199pub fn open_remote_project_with_existing_connection(
 8200    connection_options: RemoteConnectionOptions,
 8201    project: Entity<Project>,
 8202    paths: Vec<PathBuf>,
 8203    app_state: Arc<AppState>,
 8204    window: WindowHandle<Workspace>,
 8205    cx: &mut AsyncApp,
 8206) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8207    cx.spawn(async move |cx| {
 8208        let (workspace_id, serialized_workspace) =
 8209            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8210
 8211        open_remote_project_inner(
 8212            project,
 8213            paths,
 8214            workspace_id,
 8215            serialized_workspace,
 8216            app_state,
 8217            window,
 8218            cx,
 8219        )
 8220        .await
 8221    })
 8222}
 8223
 8224async fn open_remote_project_inner(
 8225    project: Entity<Project>,
 8226    paths: Vec<PathBuf>,
 8227    workspace_id: WorkspaceId,
 8228    serialized_workspace: Option<SerializedWorkspace>,
 8229    app_state: Arc<AppState>,
 8230    window: WindowHandle<Workspace>,
 8231    cx: &mut AsyncApp,
 8232) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8233    let toolchains = DB.toolchains(workspace_id).await?;
 8234    for (toolchain, worktree_path, path) in toolchains {
 8235        project
 8236            .update(cx, |this, cx| {
 8237                let Some(worktree_id) =
 8238                    this.find_worktree(&worktree_path, cx)
 8239                        .and_then(|(worktree, rel_path)| {
 8240                            if rel_path.is_empty() {
 8241                                Some(worktree.read(cx).id())
 8242                            } else {
 8243                                None
 8244                            }
 8245                        })
 8246                else {
 8247                    return Task::ready(None);
 8248                };
 8249
 8250                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8251            })?
 8252            .await;
 8253    }
 8254    let mut project_paths_to_open = vec![];
 8255    let mut project_path_errors = vec![];
 8256
 8257    for path in paths {
 8258        let result = cx
 8259            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8260            .await;
 8261        match result {
 8262            Ok((_, project_path)) => {
 8263                project_paths_to_open.push((path.clone(), Some(project_path)));
 8264            }
 8265            Err(error) => {
 8266                project_path_errors.push(error);
 8267            }
 8268        };
 8269    }
 8270
 8271    if project_paths_to_open.is_empty() {
 8272        return Err(project_path_errors.pop().context("no paths given")?);
 8273    }
 8274
 8275    if let Some(detach_session_task) = window
 8276        .update(cx, |_workspace, window, cx| {
 8277            cx.spawn_in(window, async move |this, cx| {
 8278                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8279            })
 8280        })
 8281        .ok()
 8282    {
 8283        detach_session_task.await.ok();
 8284    }
 8285
 8286    cx.update_window(window.into(), |_, window, cx| {
 8287        window.replace_root(cx, |window, cx| {
 8288            telemetry::event!("SSH Project Opened");
 8289
 8290            let mut workspace =
 8291                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8292            workspace.update_history(cx);
 8293
 8294            if let Some(ref serialized) = serialized_workspace {
 8295                workspace.centered_layout = serialized.centered_layout;
 8296            }
 8297
 8298            workspace
 8299        });
 8300    })?;
 8301
 8302    let items = window
 8303        .update(cx, |_, window, cx| {
 8304            window.activate_window();
 8305            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8306        })?
 8307        .await?;
 8308
 8309    window.update(cx, |workspace, _, cx| {
 8310        for error in project_path_errors {
 8311            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8312                if let Some(path) = error.error_tag("path") {
 8313                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8314                }
 8315            } else {
 8316                workspace.show_error(&error, cx)
 8317            }
 8318        }
 8319    })?;
 8320
 8321    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8322}
 8323
 8324fn deserialize_remote_project(
 8325    connection_options: RemoteConnectionOptions,
 8326    paths: Vec<PathBuf>,
 8327    cx: &AsyncApp,
 8328) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8329    cx.background_spawn(async move {
 8330        let remote_connection_id = persistence::DB
 8331            .get_or_create_remote_connection(connection_options)
 8332            .await?;
 8333
 8334        let serialized_workspace =
 8335            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8336
 8337        let workspace_id = if let Some(workspace_id) =
 8338            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8339        {
 8340            workspace_id
 8341        } else {
 8342            persistence::DB.next_id().await?
 8343        };
 8344
 8345        Ok((workspace_id, serialized_workspace))
 8346    })
 8347}
 8348
 8349pub fn join_in_room_project(
 8350    project_id: u64,
 8351    follow_user_id: u64,
 8352    app_state: Arc<AppState>,
 8353    cx: &mut App,
 8354) -> Task<Result<()>> {
 8355    let windows = cx.windows();
 8356    cx.spawn(async move |cx| {
 8357        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8358            window_handle
 8359                .downcast::<Workspace>()
 8360                .and_then(|window_handle| {
 8361                    window_handle
 8362                        .update(cx, |workspace, _window, cx| {
 8363                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8364                                Some(window_handle)
 8365                            } else {
 8366                                None
 8367                            }
 8368                        })
 8369                        .unwrap_or(None)
 8370                })
 8371        });
 8372
 8373        let workspace = if let Some(existing_workspace) = existing_workspace {
 8374            existing_workspace
 8375        } else {
 8376            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8377            let room = active_call
 8378                .read_with(cx, |call, _| call.room().cloned())?
 8379                .context("not in a call")?;
 8380            let project = room
 8381                .update(cx, |room, cx| {
 8382                    room.join_project(
 8383                        project_id,
 8384                        app_state.languages.clone(),
 8385                        app_state.fs.clone(),
 8386                        cx,
 8387                    )
 8388                })?
 8389                .await?;
 8390
 8391            let window_bounds_override = window_bounds_env_override();
 8392            cx.update(|cx| {
 8393                let mut options = (app_state.build_window_options)(None, cx);
 8394                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8395                cx.open_window(options, |window, cx| {
 8396                    cx.new(|cx| {
 8397                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8398                    })
 8399                })
 8400            })??
 8401        };
 8402
 8403        workspace.update(cx, |workspace, window, cx| {
 8404            cx.activate(true);
 8405            window.activate_window();
 8406
 8407            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8408                let follow_peer_id = room
 8409                    .read(cx)
 8410                    .remote_participants()
 8411                    .iter()
 8412                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8413                    .map(|(_, p)| p.peer_id)
 8414                    .or_else(|| {
 8415                        // If we couldn't follow the given user, follow the host instead.
 8416                        let collaborator = workspace
 8417                            .project()
 8418                            .read(cx)
 8419                            .collaborators()
 8420                            .values()
 8421                            .find(|collaborator| collaborator.is_host)?;
 8422                        Some(collaborator.peer_id)
 8423                    });
 8424
 8425                if let Some(follow_peer_id) = follow_peer_id {
 8426                    workspace.follow(follow_peer_id, window, cx);
 8427                }
 8428            }
 8429        })?;
 8430
 8431        anyhow::Ok(())
 8432    })
 8433}
 8434
 8435pub fn reload(cx: &mut App) {
 8436    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8437    let mut workspace_windows = cx
 8438        .windows()
 8439        .into_iter()
 8440        .filter_map(|window| window.downcast::<Workspace>())
 8441        .collect::<Vec<_>>();
 8442
 8443    // If multiple windows have unsaved changes, and need a save prompt,
 8444    // prompt in the active window before switching to a different window.
 8445    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8446
 8447    let mut prompt = None;
 8448    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8449        prompt = window
 8450            .update(cx, |_, window, cx| {
 8451                window.prompt(
 8452                    PromptLevel::Info,
 8453                    "Are you sure you want to restart?",
 8454                    None,
 8455                    &["Restart", "Cancel"],
 8456                    cx,
 8457                )
 8458            })
 8459            .ok();
 8460    }
 8461
 8462    cx.spawn(async move |cx| {
 8463        if let Some(prompt) = prompt {
 8464            let answer = prompt.await?;
 8465            if answer != 0 {
 8466                return Ok(());
 8467            }
 8468        }
 8469
 8470        // If the user cancels any save prompt, then keep the app open.
 8471        for window in workspace_windows {
 8472            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8473                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8474            }) && !should_close.await?
 8475            {
 8476                return Ok(());
 8477            }
 8478        }
 8479        cx.update(|cx| cx.restart())
 8480    })
 8481    .detach_and_log_err(cx);
 8482}
 8483
 8484fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8485    let mut parts = value.split(',');
 8486    let x: usize = parts.next()?.parse().ok()?;
 8487    let y: usize = parts.next()?.parse().ok()?;
 8488    Some(point(px(x as f32), px(y as f32)))
 8489}
 8490
 8491fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8492    let mut parts = value.split(',');
 8493    let width: usize = parts.next()?.parse().ok()?;
 8494    let height: usize = parts.next()?.parse().ok()?;
 8495    Some(size(px(width as f32), px(height as f32)))
 8496}
 8497
 8498/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8499pub fn client_side_decorations(
 8500    element: impl IntoElement,
 8501    window: &mut Window,
 8502    cx: &mut App,
 8503) -> Stateful<Div> {
 8504    const BORDER_SIZE: Pixels = px(1.0);
 8505    let decorations = window.window_decorations();
 8506
 8507    match decorations {
 8508        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8509        Decorations::Server => window.set_client_inset(px(0.0)),
 8510    }
 8511
 8512    struct GlobalResizeEdge(ResizeEdge);
 8513    impl Global for GlobalResizeEdge {}
 8514
 8515    div()
 8516        .id("window-backdrop")
 8517        .bg(transparent_black())
 8518        .map(|div| match decorations {
 8519            Decorations::Server => div,
 8520            Decorations::Client { tiling, .. } => div
 8521                .when(!(tiling.top || tiling.right), |div| {
 8522                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8523                })
 8524                .when(!(tiling.top || tiling.left), |div| {
 8525                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8526                })
 8527                .when(!(tiling.bottom || tiling.right), |div| {
 8528                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8529                })
 8530                .when(!(tiling.bottom || tiling.left), |div| {
 8531                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8532                })
 8533                .when(!tiling.top, |div| {
 8534                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8535                })
 8536                .when(!tiling.bottom, |div| {
 8537                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8538                })
 8539                .when(!tiling.left, |div| {
 8540                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8541                })
 8542                .when(!tiling.right, |div| {
 8543                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8544                })
 8545                .on_mouse_move(move |e, window, cx| {
 8546                    let size = window.window_bounds().get_bounds().size;
 8547                    let pos = e.position;
 8548
 8549                    let new_edge =
 8550                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8551
 8552                    let edge = cx.try_global::<GlobalResizeEdge>();
 8553                    if new_edge != edge.map(|edge| edge.0) {
 8554                        window
 8555                            .window_handle()
 8556                            .update(cx, |workspace, _, cx| {
 8557                                cx.notify(workspace.entity_id());
 8558                            })
 8559                            .ok();
 8560                    }
 8561                })
 8562                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8563                    let size = window.window_bounds().get_bounds().size;
 8564                    let pos = e.position;
 8565
 8566                    let edge = match resize_edge(
 8567                        pos,
 8568                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8569                        size,
 8570                        tiling,
 8571                    ) {
 8572                        Some(value) => value,
 8573                        None => return,
 8574                    };
 8575
 8576                    window.start_window_resize(edge);
 8577                }),
 8578        })
 8579        .size_full()
 8580        .child(
 8581            div()
 8582                .cursor(CursorStyle::Arrow)
 8583                .map(|div| match decorations {
 8584                    Decorations::Server => div,
 8585                    Decorations::Client { tiling } => div
 8586                        .border_color(cx.theme().colors().border)
 8587                        .when(!(tiling.top || tiling.right), |div| {
 8588                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8589                        })
 8590                        .when(!(tiling.top || tiling.left), |div| {
 8591                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8592                        })
 8593                        .when(!(tiling.bottom || tiling.right), |div| {
 8594                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8595                        })
 8596                        .when(!(tiling.bottom || tiling.left), |div| {
 8597                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8598                        })
 8599                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8600                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8601                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8602                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8603                        .when(!tiling.is_tiled(), |div| {
 8604                            div.shadow(vec![gpui::BoxShadow {
 8605                                color: Hsla {
 8606                                    h: 0.,
 8607                                    s: 0.,
 8608                                    l: 0.,
 8609                                    a: 0.4,
 8610                                },
 8611                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8612                                spread_radius: px(0.),
 8613                                offset: point(px(0.0), px(0.0)),
 8614                            }])
 8615                        }),
 8616                })
 8617                .on_mouse_move(|_e, _, cx| {
 8618                    cx.stop_propagation();
 8619                })
 8620                .size_full()
 8621                .child(element),
 8622        )
 8623        .map(|div| match decorations {
 8624            Decorations::Server => div,
 8625            Decorations::Client { tiling, .. } => div.child(
 8626                canvas(
 8627                    |_bounds, window, _| {
 8628                        window.insert_hitbox(
 8629                            Bounds::new(
 8630                                point(px(0.0), px(0.0)),
 8631                                window.window_bounds().get_bounds().size,
 8632                            ),
 8633                            HitboxBehavior::Normal,
 8634                        )
 8635                    },
 8636                    move |_bounds, hitbox, window, cx| {
 8637                        let mouse = window.mouse_position();
 8638                        let size = window.window_bounds().get_bounds().size;
 8639                        let Some(edge) =
 8640                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8641                        else {
 8642                            return;
 8643                        };
 8644                        cx.set_global(GlobalResizeEdge(edge));
 8645                        window.set_cursor_style(
 8646                            match edge {
 8647                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8648                                ResizeEdge::Left | ResizeEdge::Right => {
 8649                                    CursorStyle::ResizeLeftRight
 8650                                }
 8651                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8652                                    CursorStyle::ResizeUpLeftDownRight
 8653                                }
 8654                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8655                                    CursorStyle::ResizeUpRightDownLeft
 8656                                }
 8657                            },
 8658                            &hitbox,
 8659                        );
 8660                    },
 8661                )
 8662                .size_full()
 8663                .absolute(),
 8664            ),
 8665        })
 8666}
 8667
 8668fn resize_edge(
 8669    pos: Point<Pixels>,
 8670    shadow_size: Pixels,
 8671    window_size: Size<Pixels>,
 8672    tiling: Tiling,
 8673) -> Option<ResizeEdge> {
 8674    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8675    if bounds.contains(&pos) {
 8676        return None;
 8677    }
 8678
 8679    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8680    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8681    if !tiling.top && top_left_bounds.contains(&pos) {
 8682        return Some(ResizeEdge::TopLeft);
 8683    }
 8684
 8685    let top_right_bounds = Bounds::new(
 8686        Point::new(window_size.width - corner_size.width, px(0.)),
 8687        corner_size,
 8688    );
 8689    if !tiling.top && top_right_bounds.contains(&pos) {
 8690        return Some(ResizeEdge::TopRight);
 8691    }
 8692
 8693    let bottom_left_bounds = Bounds::new(
 8694        Point::new(px(0.), window_size.height - corner_size.height),
 8695        corner_size,
 8696    );
 8697    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8698        return Some(ResizeEdge::BottomLeft);
 8699    }
 8700
 8701    let bottom_right_bounds = Bounds::new(
 8702        Point::new(
 8703            window_size.width - corner_size.width,
 8704            window_size.height - corner_size.height,
 8705        ),
 8706        corner_size,
 8707    );
 8708    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8709        return Some(ResizeEdge::BottomRight);
 8710    }
 8711
 8712    if !tiling.top && pos.y < shadow_size {
 8713        Some(ResizeEdge::Top)
 8714    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8715        Some(ResizeEdge::Bottom)
 8716    } else if !tiling.left && pos.x < shadow_size {
 8717        Some(ResizeEdge::Left)
 8718    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8719        Some(ResizeEdge::Right)
 8720    } else {
 8721        None
 8722    }
 8723}
 8724
 8725fn join_pane_into_active(
 8726    active_pane: &Entity<Pane>,
 8727    pane: &Entity<Pane>,
 8728    window: &mut Window,
 8729    cx: &mut App,
 8730) {
 8731    if pane == active_pane {
 8732    } else if pane.read(cx).items_len() == 0 {
 8733        pane.update(cx, |_, cx| {
 8734            cx.emit(pane::Event::Remove {
 8735                focus_on_pane: None,
 8736            });
 8737        })
 8738    } else {
 8739        move_all_items(pane, active_pane, window, cx);
 8740    }
 8741}
 8742
 8743fn move_all_items(
 8744    from_pane: &Entity<Pane>,
 8745    to_pane: &Entity<Pane>,
 8746    window: &mut Window,
 8747    cx: &mut App,
 8748) {
 8749    let destination_is_different = from_pane != to_pane;
 8750    let mut moved_items = 0;
 8751    for (item_ix, item_handle) in from_pane
 8752        .read(cx)
 8753        .items()
 8754        .enumerate()
 8755        .map(|(ix, item)| (ix, item.clone()))
 8756        .collect::<Vec<_>>()
 8757    {
 8758        let ix = item_ix - moved_items;
 8759        if destination_is_different {
 8760            // Close item from previous pane
 8761            from_pane.update(cx, |source, cx| {
 8762                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8763            });
 8764            moved_items += 1;
 8765        }
 8766
 8767        // This automatically removes duplicate items in the pane
 8768        to_pane.update(cx, |destination, cx| {
 8769            destination.add_item(item_handle, true, true, None, window, cx);
 8770            window.focus(&destination.focus_handle(cx), cx)
 8771        });
 8772    }
 8773}
 8774
 8775pub fn move_item(
 8776    source: &Entity<Pane>,
 8777    destination: &Entity<Pane>,
 8778    item_id_to_move: EntityId,
 8779    destination_index: usize,
 8780    activate: bool,
 8781    window: &mut Window,
 8782    cx: &mut App,
 8783) {
 8784    let Some((item_ix, item_handle)) = source
 8785        .read(cx)
 8786        .items()
 8787        .enumerate()
 8788        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8789        .map(|(ix, item)| (ix, item.clone()))
 8790    else {
 8791        // Tab was closed during drag
 8792        return;
 8793    };
 8794
 8795    if source != destination {
 8796        // Close item from previous pane
 8797        source.update(cx, |source, cx| {
 8798            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8799        });
 8800    }
 8801
 8802    // This automatically removes duplicate items in the pane
 8803    destination.update(cx, |destination, cx| {
 8804        destination.add_item_inner(
 8805            item_handle,
 8806            activate,
 8807            activate,
 8808            activate,
 8809            Some(destination_index),
 8810            window,
 8811            cx,
 8812        );
 8813        if activate {
 8814            window.focus(&destination.focus_handle(cx), cx)
 8815        }
 8816    });
 8817}
 8818
 8819pub fn move_active_item(
 8820    source: &Entity<Pane>,
 8821    destination: &Entity<Pane>,
 8822    focus_destination: bool,
 8823    close_if_empty: bool,
 8824    window: &mut Window,
 8825    cx: &mut App,
 8826) {
 8827    if source == destination {
 8828        return;
 8829    }
 8830    let Some(active_item) = source.read(cx).active_item() else {
 8831        return;
 8832    };
 8833    source.update(cx, |source_pane, cx| {
 8834        let item_id = active_item.item_id();
 8835        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8836        destination.update(cx, |target_pane, cx| {
 8837            target_pane.add_item(
 8838                active_item,
 8839                focus_destination,
 8840                focus_destination,
 8841                Some(target_pane.items_len()),
 8842                window,
 8843                cx,
 8844            );
 8845        });
 8846    });
 8847}
 8848
 8849pub fn clone_active_item(
 8850    workspace_id: Option<WorkspaceId>,
 8851    source: &Entity<Pane>,
 8852    destination: &Entity<Pane>,
 8853    focus_destination: bool,
 8854    window: &mut Window,
 8855    cx: &mut App,
 8856) {
 8857    if source == destination {
 8858        return;
 8859    }
 8860    let Some(active_item) = source.read(cx).active_item() else {
 8861        return;
 8862    };
 8863    if !active_item.can_split(cx) {
 8864        return;
 8865    }
 8866    let destination = destination.downgrade();
 8867    let task = active_item.clone_on_split(workspace_id, window, cx);
 8868    window
 8869        .spawn(cx, async move |cx| {
 8870            let Some(clone) = task.await else {
 8871                return;
 8872            };
 8873            destination
 8874                .update_in(cx, |target_pane, window, cx| {
 8875                    target_pane.add_item(
 8876                        clone,
 8877                        focus_destination,
 8878                        focus_destination,
 8879                        Some(target_pane.items_len()),
 8880                        window,
 8881                        cx,
 8882                    );
 8883                })
 8884                .log_err();
 8885        })
 8886        .detach();
 8887}
 8888
 8889#[derive(Debug)]
 8890pub struct WorkspacePosition {
 8891    pub window_bounds: Option<WindowBounds>,
 8892    pub display: Option<Uuid>,
 8893    pub centered_layout: bool,
 8894}
 8895
 8896pub fn remote_workspace_position_from_db(
 8897    connection_options: RemoteConnectionOptions,
 8898    paths_to_open: &[PathBuf],
 8899    cx: &App,
 8900) -> Task<Result<WorkspacePosition>> {
 8901    let paths = paths_to_open.to_vec();
 8902
 8903    cx.background_spawn(async move {
 8904        let remote_connection_id = persistence::DB
 8905            .get_or_create_remote_connection(connection_options)
 8906            .await
 8907            .context("fetching serialized ssh project")?;
 8908        let serialized_workspace =
 8909            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8910
 8911        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8912            (Some(WindowBounds::Windowed(bounds)), None)
 8913        } else {
 8914            let restorable_bounds = serialized_workspace
 8915                .as_ref()
 8916                .and_then(|workspace| {
 8917                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8918                })
 8919                .or_else(|| persistence::read_default_window_bounds());
 8920
 8921            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8922                (Some(serialized_bounds), Some(serialized_display))
 8923            } else {
 8924                (None, None)
 8925            }
 8926        };
 8927
 8928        let centered_layout = serialized_workspace
 8929            .as_ref()
 8930            .map(|w| w.centered_layout)
 8931            .unwrap_or(false);
 8932
 8933        Ok(WorkspacePosition {
 8934            window_bounds,
 8935            display,
 8936            centered_layout,
 8937        })
 8938    })
 8939}
 8940
 8941pub fn with_active_or_new_workspace(
 8942    cx: &mut App,
 8943    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8944) {
 8945    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8946        Some(workspace) => {
 8947            cx.defer(move |cx| {
 8948                workspace
 8949                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8950                    .log_err();
 8951            });
 8952        }
 8953        None => {
 8954            let app_state = AppState::global(cx);
 8955            if let Some(app_state) = app_state.upgrade() {
 8956                open_new(
 8957                    OpenOptions::default(),
 8958                    app_state,
 8959                    cx,
 8960                    move |workspace, window, cx| f(workspace, window, cx),
 8961                )
 8962                .detach_and_log_err(cx);
 8963            }
 8964        }
 8965    }
 8966}
 8967
 8968#[cfg(test)]
 8969mod tests {
 8970    use std::{cell::RefCell, rc::Rc};
 8971
 8972    use super::*;
 8973    use crate::{
 8974        dock::{PanelEvent, test::TestPanel},
 8975        item::{
 8976            ItemBufferKind, ItemEvent,
 8977            test::{TestItem, TestProjectItem},
 8978        },
 8979    };
 8980    use fs::FakeFs;
 8981    use gpui::{
 8982        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8983        UpdateGlobal, VisualTestContext, px,
 8984    };
 8985    use project::{Project, ProjectEntryId};
 8986    use serde_json::json;
 8987    use settings::SettingsStore;
 8988    use util::rel_path::rel_path;
 8989
 8990    #[gpui::test]
 8991    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8992        init_test(cx);
 8993
 8994        let fs = FakeFs::new(cx.executor());
 8995        let project = Project::test(fs, [], cx).await;
 8996        let (workspace, cx) =
 8997            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8998
 8999        // Adding an item with no ambiguity renders the tab without detail.
 9000        let item1 = cx.new(|cx| {
 9001            let mut item = TestItem::new(cx);
 9002            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9003            item
 9004        });
 9005        workspace.update_in(cx, |workspace, window, cx| {
 9006            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9007        });
 9008        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9009
 9010        // Adding an item that creates ambiguity increases the level of detail on
 9011        // both tabs.
 9012        let item2 = cx.new_window_entity(|_window, cx| {
 9013            let mut item = TestItem::new(cx);
 9014            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9015            item
 9016        });
 9017        workspace.update_in(cx, |workspace, window, cx| {
 9018            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9019        });
 9020        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9021        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9022
 9023        // Adding an item that creates ambiguity increases the level of detail only
 9024        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9025        // we stop at the highest detail available.
 9026        let item3 = cx.new(|cx| {
 9027            let mut item = TestItem::new(cx);
 9028            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9029            item
 9030        });
 9031        workspace.update_in(cx, |workspace, window, cx| {
 9032            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9033        });
 9034        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9035        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9036        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9037    }
 9038
 9039    #[gpui::test]
 9040    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9041        init_test(cx);
 9042
 9043        let fs = FakeFs::new(cx.executor());
 9044        fs.insert_tree(
 9045            "/root1",
 9046            json!({
 9047                "one.txt": "",
 9048                "two.txt": "",
 9049            }),
 9050        )
 9051        .await;
 9052        fs.insert_tree(
 9053            "/root2",
 9054            json!({
 9055                "three.txt": "",
 9056            }),
 9057        )
 9058        .await;
 9059
 9060        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9061        let (workspace, cx) =
 9062            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9063        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9064        let worktree_id = project.update(cx, |project, cx| {
 9065            project.worktrees(cx).next().unwrap().read(cx).id()
 9066        });
 9067
 9068        let item1 = cx.new(|cx| {
 9069            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9070        });
 9071        let item2 = cx.new(|cx| {
 9072            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9073        });
 9074
 9075        // Add an item to an empty pane
 9076        workspace.update_in(cx, |workspace, window, cx| {
 9077            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9078        });
 9079        project.update(cx, |project, cx| {
 9080            assert_eq!(
 9081                project.active_entry(),
 9082                project
 9083                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9084                    .map(|e| e.id)
 9085            );
 9086        });
 9087        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9088
 9089        // Add a second item to a non-empty pane
 9090        workspace.update_in(cx, |workspace, window, cx| {
 9091            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9092        });
 9093        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9094        project.update(cx, |project, cx| {
 9095            assert_eq!(
 9096                project.active_entry(),
 9097                project
 9098                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9099                    .map(|e| e.id)
 9100            );
 9101        });
 9102
 9103        // Close the active item
 9104        pane.update_in(cx, |pane, window, cx| {
 9105            pane.close_active_item(&Default::default(), window, cx)
 9106        })
 9107        .await
 9108        .unwrap();
 9109        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9110        project.update(cx, |project, cx| {
 9111            assert_eq!(
 9112                project.active_entry(),
 9113                project
 9114                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9115                    .map(|e| e.id)
 9116            );
 9117        });
 9118
 9119        // Add a project folder
 9120        project
 9121            .update(cx, |project, cx| {
 9122                project.find_or_create_worktree("root2", true, cx)
 9123            })
 9124            .await
 9125            .unwrap();
 9126        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9127
 9128        // Remove a project folder
 9129        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9130        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9131    }
 9132
 9133    #[gpui::test]
 9134    async fn test_close_window(cx: &mut TestAppContext) {
 9135        init_test(cx);
 9136
 9137        let fs = FakeFs::new(cx.executor());
 9138        fs.insert_tree("/root", json!({ "one": "" })).await;
 9139
 9140        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9141        let (workspace, cx) =
 9142            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9143
 9144        // When there are no dirty items, there's nothing to do.
 9145        let item1 = cx.new(TestItem::new);
 9146        workspace.update_in(cx, |w, window, cx| {
 9147            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9148        });
 9149        let task = workspace.update_in(cx, |w, window, cx| {
 9150            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9151        });
 9152        assert!(task.await.unwrap());
 9153
 9154        // When there are dirty untitled items, prompt to save each one. If the user
 9155        // cancels any prompt, then abort.
 9156        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9157        let item3 = cx.new(|cx| {
 9158            TestItem::new(cx)
 9159                .with_dirty(true)
 9160                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9161        });
 9162        workspace.update_in(cx, |w, window, cx| {
 9163            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9164            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9165        });
 9166        let task = workspace.update_in(cx, |w, window, cx| {
 9167            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9168        });
 9169        cx.executor().run_until_parked();
 9170        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9171        cx.executor().run_until_parked();
 9172        assert!(!cx.has_pending_prompt());
 9173        assert!(!task.await.unwrap());
 9174    }
 9175
 9176    #[gpui::test]
 9177    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9178        init_test(cx);
 9179
 9180        // Register TestItem as a serializable item
 9181        cx.update(|cx| {
 9182            register_serializable_item::<TestItem>(cx);
 9183        });
 9184
 9185        let fs = FakeFs::new(cx.executor());
 9186        fs.insert_tree("/root", json!({ "one": "" })).await;
 9187
 9188        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9189        let (workspace, cx) =
 9190            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9191
 9192        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9193        let item1 = cx.new(|cx| {
 9194            TestItem::new(cx)
 9195                .with_dirty(true)
 9196                .with_serialize(|| Some(Task::ready(Ok(()))))
 9197        });
 9198        let item2 = cx.new(|cx| {
 9199            TestItem::new(cx)
 9200                .with_dirty(true)
 9201                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9202                .with_serialize(|| Some(Task::ready(Ok(()))))
 9203        });
 9204        workspace.update_in(cx, |w, window, cx| {
 9205            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9206            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9207        });
 9208        let task = workspace.update_in(cx, |w, window, cx| {
 9209            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9210        });
 9211        assert!(task.await.unwrap());
 9212    }
 9213
 9214    #[gpui::test]
 9215    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9216        init_test(cx);
 9217
 9218        let fs = FakeFs::new(cx.executor());
 9219
 9220        let project = Project::test(fs, None, cx).await;
 9221        let (workspace, cx) =
 9222            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9223
 9224        let item1 = cx.new(|cx| {
 9225            TestItem::new(cx)
 9226                .with_dirty(true)
 9227                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9228        });
 9229        let item2 = cx.new(|cx| {
 9230            TestItem::new(cx)
 9231                .with_dirty(true)
 9232                .with_conflict(true)
 9233                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9234        });
 9235        let item3 = cx.new(|cx| {
 9236            TestItem::new(cx)
 9237                .with_dirty(true)
 9238                .with_conflict(true)
 9239                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9240        });
 9241        let item4 = cx.new(|cx| {
 9242            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9243                let project_item = TestProjectItem::new_untitled(cx);
 9244                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9245                project_item
 9246            }])
 9247        });
 9248        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9249            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9250            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9251            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9252            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9253            workspace.active_pane().clone()
 9254        });
 9255
 9256        let close_items = pane.update_in(cx, |pane, window, cx| {
 9257            pane.activate_item(1, true, true, window, cx);
 9258            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9259            let item1_id = item1.item_id();
 9260            let item3_id = item3.item_id();
 9261            let item4_id = item4.item_id();
 9262            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9263                [item1_id, item3_id, item4_id].contains(&id)
 9264            })
 9265        });
 9266        cx.executor().run_until_parked();
 9267
 9268        assert!(cx.has_pending_prompt());
 9269        cx.simulate_prompt_answer("Save all");
 9270
 9271        cx.executor().run_until_parked();
 9272
 9273        // Item 1 is saved. There's a prompt to save item 3.
 9274        pane.update(cx, |pane, cx| {
 9275            assert_eq!(item1.read(cx).save_count, 1);
 9276            assert_eq!(item1.read(cx).save_as_count, 0);
 9277            assert_eq!(item1.read(cx).reload_count, 0);
 9278            assert_eq!(pane.items_len(), 3);
 9279            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9280        });
 9281        assert!(cx.has_pending_prompt());
 9282
 9283        // Cancel saving item 3.
 9284        cx.simulate_prompt_answer("Discard");
 9285        cx.executor().run_until_parked();
 9286
 9287        // Item 3 is reloaded. There's a prompt to save item 4.
 9288        pane.update(cx, |pane, cx| {
 9289            assert_eq!(item3.read(cx).save_count, 0);
 9290            assert_eq!(item3.read(cx).save_as_count, 0);
 9291            assert_eq!(item3.read(cx).reload_count, 1);
 9292            assert_eq!(pane.items_len(), 2);
 9293            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9294        });
 9295
 9296        // There's a prompt for a path for item 4.
 9297        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9298        close_items.await.unwrap();
 9299
 9300        // The requested items are closed.
 9301        pane.update(cx, |pane, cx| {
 9302            assert_eq!(item4.read(cx).save_count, 0);
 9303            assert_eq!(item4.read(cx).save_as_count, 1);
 9304            assert_eq!(item4.read(cx).reload_count, 0);
 9305            assert_eq!(pane.items_len(), 1);
 9306            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9307        });
 9308    }
 9309
 9310    #[gpui::test]
 9311    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9312        init_test(cx);
 9313
 9314        let fs = FakeFs::new(cx.executor());
 9315        let project = Project::test(fs, [], cx).await;
 9316        let (workspace, cx) =
 9317            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9318
 9319        // Create several workspace items with single project entries, and two
 9320        // workspace items with multiple project entries.
 9321        let single_entry_items = (0..=4)
 9322            .map(|project_entry_id| {
 9323                cx.new(|cx| {
 9324                    TestItem::new(cx)
 9325                        .with_dirty(true)
 9326                        .with_project_items(&[dirty_project_item(
 9327                            project_entry_id,
 9328                            &format!("{project_entry_id}.txt"),
 9329                            cx,
 9330                        )])
 9331                })
 9332            })
 9333            .collect::<Vec<_>>();
 9334        let item_2_3 = cx.new(|cx| {
 9335            TestItem::new(cx)
 9336                .with_dirty(true)
 9337                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9338                .with_project_items(&[
 9339                    single_entry_items[2].read(cx).project_items[0].clone(),
 9340                    single_entry_items[3].read(cx).project_items[0].clone(),
 9341                ])
 9342        });
 9343        let item_3_4 = cx.new(|cx| {
 9344            TestItem::new(cx)
 9345                .with_dirty(true)
 9346                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9347                .with_project_items(&[
 9348                    single_entry_items[3].read(cx).project_items[0].clone(),
 9349                    single_entry_items[4].read(cx).project_items[0].clone(),
 9350                ])
 9351        });
 9352
 9353        // Create two panes that contain the following project entries:
 9354        //   left pane:
 9355        //     multi-entry items:   (2, 3)
 9356        //     single-entry items:  0, 2, 3, 4
 9357        //   right pane:
 9358        //     single-entry items:  4, 1
 9359        //     multi-entry items:   (3, 4)
 9360        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9361            let left_pane = workspace.active_pane().clone();
 9362            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9363            workspace.add_item_to_active_pane(
 9364                single_entry_items[0].boxed_clone(),
 9365                None,
 9366                true,
 9367                window,
 9368                cx,
 9369            );
 9370            workspace.add_item_to_active_pane(
 9371                single_entry_items[2].boxed_clone(),
 9372                None,
 9373                true,
 9374                window,
 9375                cx,
 9376            );
 9377            workspace.add_item_to_active_pane(
 9378                single_entry_items[3].boxed_clone(),
 9379                None,
 9380                true,
 9381                window,
 9382                cx,
 9383            );
 9384            workspace.add_item_to_active_pane(
 9385                single_entry_items[4].boxed_clone(),
 9386                None,
 9387                true,
 9388                window,
 9389                cx,
 9390            );
 9391
 9392            let right_pane =
 9393                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9394
 9395            let boxed_clone = single_entry_items[1].boxed_clone();
 9396            let right_pane = window.spawn(cx, async move |cx| {
 9397                right_pane.await.inspect(|right_pane| {
 9398                    right_pane
 9399                        .update_in(cx, |pane, window, cx| {
 9400                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9401                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9402                        })
 9403                        .unwrap();
 9404                })
 9405            });
 9406
 9407            (left_pane, right_pane)
 9408        });
 9409        let right_pane = right_pane.await.unwrap();
 9410        cx.focus(&right_pane);
 9411
 9412        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9413            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9414                .unwrap()
 9415        });
 9416        cx.executor().run_until_parked();
 9417
 9418        let msg = cx.pending_prompt().unwrap().0;
 9419        assert!(msg.contains("1.txt"));
 9420        assert!(!msg.contains("2.txt"));
 9421        assert!(!msg.contains("3.txt"));
 9422        assert!(!msg.contains("4.txt"));
 9423
 9424        cx.simulate_prompt_answer("Cancel");
 9425        close.await;
 9426
 9427        left_pane
 9428            .update_in(cx, |left_pane, window, cx| {
 9429                left_pane.close_item_by_id(
 9430                    single_entry_items[3].entity_id(),
 9431                    SaveIntent::Skip,
 9432                    window,
 9433                    cx,
 9434                )
 9435            })
 9436            .await
 9437            .unwrap();
 9438
 9439        close = right_pane.update_in(cx, |pane, window, cx| {
 9440            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9441                .unwrap()
 9442        });
 9443        cx.executor().run_until_parked();
 9444
 9445        let details = cx.pending_prompt().unwrap().1;
 9446        assert!(details.contains("1.txt"));
 9447        assert!(!details.contains("2.txt"));
 9448        assert!(details.contains("3.txt"));
 9449        // ideally this assertion could be made, but today we can only
 9450        // save whole items not project items, so the orphaned item 3 causes
 9451        // 4 to be saved too.
 9452        // assert!(!details.contains("4.txt"));
 9453
 9454        cx.simulate_prompt_answer("Save all");
 9455
 9456        cx.executor().run_until_parked();
 9457        close.await;
 9458        right_pane.read_with(cx, |pane, _| {
 9459            assert_eq!(pane.items_len(), 0);
 9460        });
 9461    }
 9462
 9463    #[gpui::test]
 9464    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9465        init_test(cx);
 9466
 9467        let fs = FakeFs::new(cx.executor());
 9468        let project = Project::test(fs, [], cx).await;
 9469        let (workspace, cx) =
 9470            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9471        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9472
 9473        let item = cx.new(|cx| {
 9474            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9475        });
 9476        let item_id = item.entity_id();
 9477        workspace.update_in(cx, |workspace, window, cx| {
 9478            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9479        });
 9480
 9481        // Autosave on window change.
 9482        item.update(cx, |item, cx| {
 9483            SettingsStore::update_global(cx, |settings, cx| {
 9484                settings.update_user_settings(cx, |settings| {
 9485                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9486                })
 9487            });
 9488            item.is_dirty = true;
 9489        });
 9490
 9491        // Deactivating the window saves the file.
 9492        cx.deactivate_window();
 9493        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9494
 9495        // Re-activating the window doesn't save the file.
 9496        cx.update(|window, _| window.activate_window());
 9497        cx.executor().run_until_parked();
 9498        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9499
 9500        // Autosave on focus change.
 9501        item.update_in(cx, |item, window, cx| {
 9502            cx.focus_self(window);
 9503            SettingsStore::update_global(cx, |settings, cx| {
 9504                settings.update_user_settings(cx, |settings| {
 9505                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9506                })
 9507            });
 9508            item.is_dirty = true;
 9509        });
 9510        // Blurring the item saves the file.
 9511        item.update_in(cx, |_, window, _| window.blur());
 9512        cx.executor().run_until_parked();
 9513        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9514
 9515        // Deactivating the window still saves the file.
 9516        item.update_in(cx, |item, window, cx| {
 9517            cx.focus_self(window);
 9518            item.is_dirty = true;
 9519        });
 9520        cx.deactivate_window();
 9521        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9522
 9523        // Autosave after delay.
 9524        item.update(cx, |item, cx| {
 9525            SettingsStore::update_global(cx, |settings, cx| {
 9526                settings.update_user_settings(cx, |settings| {
 9527                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9528                        milliseconds: 500.into(),
 9529                    });
 9530                })
 9531            });
 9532            item.is_dirty = true;
 9533            cx.emit(ItemEvent::Edit);
 9534        });
 9535
 9536        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9537        cx.executor().advance_clock(Duration::from_millis(250));
 9538        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9539
 9540        // After delay expires, the file is saved.
 9541        cx.executor().advance_clock(Duration::from_millis(250));
 9542        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9543
 9544        // Autosave after delay, should save earlier than delay if tab is closed
 9545        item.update(cx, |item, cx| {
 9546            item.is_dirty = true;
 9547            cx.emit(ItemEvent::Edit);
 9548        });
 9549        cx.executor().advance_clock(Duration::from_millis(250));
 9550        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9551
 9552        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9553        pane.update_in(cx, |pane, window, cx| {
 9554            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9555        })
 9556        .await
 9557        .unwrap();
 9558        assert!(!cx.has_pending_prompt());
 9559        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9560
 9561        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9562        workspace.update_in(cx, |workspace, window, cx| {
 9563            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9564        });
 9565        item.update_in(cx, |item, _window, cx| {
 9566            item.is_dirty = true;
 9567            for project_item in &mut item.project_items {
 9568                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9569            }
 9570        });
 9571        cx.run_until_parked();
 9572        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9573
 9574        // Autosave on focus change, ensuring closing the tab counts as such.
 9575        item.update(cx, |item, cx| {
 9576            SettingsStore::update_global(cx, |settings, cx| {
 9577                settings.update_user_settings(cx, |settings| {
 9578                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9579                })
 9580            });
 9581            item.is_dirty = true;
 9582            for project_item in &mut item.project_items {
 9583                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9584            }
 9585        });
 9586
 9587        pane.update_in(cx, |pane, window, cx| {
 9588            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9589        })
 9590        .await
 9591        .unwrap();
 9592        assert!(!cx.has_pending_prompt());
 9593        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9594
 9595        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9596        workspace.update_in(cx, |workspace, window, cx| {
 9597            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9598        });
 9599        item.update_in(cx, |item, window, cx| {
 9600            item.project_items[0].update(cx, |item, _| {
 9601                item.entry_id = None;
 9602            });
 9603            item.is_dirty = true;
 9604            window.blur();
 9605        });
 9606        cx.run_until_parked();
 9607        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9608
 9609        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9610        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9611            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9612        });
 9613        cx.run_until_parked();
 9614        assert!(cx.has_pending_prompt());
 9615        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9616    }
 9617
 9618    #[gpui::test]
 9619    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9620        init_test(cx);
 9621
 9622        let fs = FakeFs::new(cx.executor());
 9623
 9624        let project = Project::test(fs, [], cx).await;
 9625        let (workspace, cx) =
 9626            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9627
 9628        let item = cx.new(|cx| {
 9629            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9630        });
 9631        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9632        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9633        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9634
 9635        workspace.update_in(cx, |workspace, window, cx| {
 9636            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9637            let toolbar_notification_count = toolbar_notify_count.clone();
 9638            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9639                *toolbar_notification_count.borrow_mut() += 1
 9640            })
 9641            .detach();
 9642        });
 9643
 9644        pane.read_with(cx, |pane, _| {
 9645            assert!(!pane.can_navigate_backward());
 9646            assert!(!pane.can_navigate_forward());
 9647        });
 9648
 9649        item.update_in(cx, |item, _, cx| {
 9650            item.set_state("one".to_string(), cx);
 9651        });
 9652
 9653        // Toolbar must be notified to re-render the navigation buttons
 9654        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9655
 9656        pane.read_with(cx, |pane, _| {
 9657            assert!(pane.can_navigate_backward());
 9658            assert!(!pane.can_navigate_forward());
 9659        });
 9660
 9661        workspace
 9662            .update_in(cx, |workspace, window, cx| {
 9663                workspace.go_back(pane.downgrade(), window, cx)
 9664            })
 9665            .await
 9666            .unwrap();
 9667
 9668        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9669        pane.read_with(cx, |pane, _| {
 9670            assert!(!pane.can_navigate_backward());
 9671            assert!(pane.can_navigate_forward());
 9672        });
 9673    }
 9674
 9675    #[gpui::test]
 9676    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9677        init_test(cx);
 9678        let fs = FakeFs::new(cx.executor());
 9679
 9680        let project = Project::test(fs, [], cx).await;
 9681        let (workspace, cx) =
 9682            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9683
 9684        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9685            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9686            workspace.add_panel(panel.clone(), window, cx);
 9687
 9688            workspace
 9689                .right_dock()
 9690                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9691
 9692            panel
 9693        });
 9694
 9695        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9696        pane.update_in(cx, |pane, window, cx| {
 9697            let item = cx.new(TestItem::new);
 9698            pane.add_item(Box::new(item), true, true, None, window, cx);
 9699        });
 9700
 9701        // Transfer focus from center to panel
 9702        workspace.update_in(cx, |workspace, window, cx| {
 9703            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9704        });
 9705
 9706        workspace.update_in(cx, |workspace, window, cx| {
 9707            assert!(workspace.right_dock().read(cx).is_open());
 9708            assert!(!panel.is_zoomed(window, cx));
 9709            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9710        });
 9711
 9712        // Transfer focus from panel to center
 9713        workspace.update_in(cx, |workspace, window, cx| {
 9714            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9715        });
 9716
 9717        workspace.update_in(cx, |workspace, window, cx| {
 9718            assert!(workspace.right_dock().read(cx).is_open());
 9719            assert!(!panel.is_zoomed(window, cx));
 9720            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9721        });
 9722
 9723        // Close the dock
 9724        workspace.update_in(cx, |workspace, window, cx| {
 9725            workspace.toggle_dock(DockPosition::Right, window, cx);
 9726        });
 9727
 9728        workspace.update_in(cx, |workspace, window, cx| {
 9729            assert!(!workspace.right_dock().read(cx).is_open());
 9730            assert!(!panel.is_zoomed(window, cx));
 9731            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9732        });
 9733
 9734        // Open the dock
 9735        workspace.update_in(cx, |workspace, window, cx| {
 9736            workspace.toggle_dock(DockPosition::Right, window, cx);
 9737        });
 9738
 9739        workspace.update_in(cx, |workspace, window, cx| {
 9740            assert!(workspace.right_dock().read(cx).is_open());
 9741            assert!(!panel.is_zoomed(window, cx));
 9742            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9743        });
 9744
 9745        // Focus and zoom panel
 9746        panel.update_in(cx, |panel, window, cx| {
 9747            cx.focus_self(window);
 9748            panel.set_zoomed(true, window, cx)
 9749        });
 9750
 9751        workspace.update_in(cx, |workspace, window, cx| {
 9752            assert!(workspace.right_dock().read(cx).is_open());
 9753            assert!(panel.is_zoomed(window, cx));
 9754            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9755        });
 9756
 9757        // Transfer focus to the center closes the dock
 9758        workspace.update_in(cx, |workspace, window, cx| {
 9759            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9760        });
 9761
 9762        workspace.update_in(cx, |workspace, window, cx| {
 9763            assert!(!workspace.right_dock().read(cx).is_open());
 9764            assert!(panel.is_zoomed(window, cx));
 9765            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9766        });
 9767
 9768        // Transferring focus back to the panel keeps it zoomed
 9769        workspace.update_in(cx, |workspace, window, cx| {
 9770            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9771        });
 9772
 9773        workspace.update_in(cx, |workspace, window, cx| {
 9774            assert!(workspace.right_dock().read(cx).is_open());
 9775            assert!(panel.is_zoomed(window, cx));
 9776            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9777        });
 9778
 9779        // Close the dock while it is zoomed
 9780        workspace.update_in(cx, |workspace, window, cx| {
 9781            workspace.toggle_dock(DockPosition::Right, window, cx)
 9782        });
 9783
 9784        workspace.update_in(cx, |workspace, window, cx| {
 9785            assert!(!workspace.right_dock().read(cx).is_open());
 9786            assert!(panel.is_zoomed(window, cx));
 9787            assert!(workspace.zoomed.is_none());
 9788            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9789        });
 9790
 9791        // Opening the dock, when it's zoomed, retains focus
 9792        workspace.update_in(cx, |workspace, window, cx| {
 9793            workspace.toggle_dock(DockPosition::Right, window, cx)
 9794        });
 9795
 9796        workspace.update_in(cx, |workspace, window, cx| {
 9797            assert!(workspace.right_dock().read(cx).is_open());
 9798            assert!(panel.is_zoomed(window, cx));
 9799            assert!(workspace.zoomed.is_some());
 9800            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9801        });
 9802
 9803        // Unzoom and close the panel, zoom the active pane.
 9804        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9805        workspace.update_in(cx, |workspace, window, cx| {
 9806            workspace.toggle_dock(DockPosition::Right, window, cx)
 9807        });
 9808        pane.update_in(cx, |pane, window, cx| {
 9809            pane.toggle_zoom(&Default::default(), window, cx)
 9810        });
 9811
 9812        // Opening a dock unzooms the pane.
 9813        workspace.update_in(cx, |workspace, window, cx| {
 9814            workspace.toggle_dock(DockPosition::Right, window, cx)
 9815        });
 9816        workspace.update_in(cx, |workspace, window, cx| {
 9817            let pane = pane.read(cx);
 9818            assert!(!pane.is_zoomed());
 9819            assert!(!pane.focus_handle(cx).is_focused(window));
 9820            assert!(workspace.right_dock().read(cx).is_open());
 9821            assert!(workspace.zoomed.is_none());
 9822        });
 9823    }
 9824
 9825    #[gpui::test]
 9826    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9827        init_test(cx);
 9828        let fs = FakeFs::new(cx.executor());
 9829
 9830        let project = Project::test(fs, [], cx).await;
 9831        let (workspace, cx) =
 9832            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9833
 9834        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9835            workspace.active_pane().clone()
 9836        });
 9837
 9838        // Add an item to the pane so it can be zoomed
 9839        workspace.update_in(cx, |workspace, window, cx| {
 9840            let item = cx.new(TestItem::new);
 9841            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9842        });
 9843
 9844        // Initially not zoomed
 9845        workspace.update_in(cx, |workspace, _window, cx| {
 9846            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9847            assert!(
 9848                workspace.zoomed.is_none(),
 9849                "Workspace should track no zoomed pane"
 9850            );
 9851            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9852        });
 9853
 9854        // Zoom In
 9855        pane.update_in(cx, |pane, window, cx| {
 9856            pane.zoom_in(&crate::ZoomIn, window, cx);
 9857        });
 9858
 9859        workspace.update_in(cx, |workspace, window, cx| {
 9860            assert!(
 9861                pane.read(cx).is_zoomed(),
 9862                "Pane should be zoomed after ZoomIn"
 9863            );
 9864            assert!(
 9865                workspace.zoomed.is_some(),
 9866                "Workspace should track the zoomed pane"
 9867            );
 9868            assert!(
 9869                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9870                "ZoomIn should focus the pane"
 9871            );
 9872        });
 9873
 9874        // Zoom In again is a no-op
 9875        pane.update_in(cx, |pane, window, cx| {
 9876            pane.zoom_in(&crate::ZoomIn, window, cx);
 9877        });
 9878
 9879        workspace.update_in(cx, |workspace, window, cx| {
 9880            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9881            assert!(
 9882                workspace.zoomed.is_some(),
 9883                "Workspace still tracks zoomed pane"
 9884            );
 9885            assert!(
 9886                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9887                "Pane remains focused after repeated ZoomIn"
 9888            );
 9889        });
 9890
 9891        // Zoom Out
 9892        pane.update_in(cx, |pane, window, cx| {
 9893            pane.zoom_out(&crate::ZoomOut, window, cx);
 9894        });
 9895
 9896        workspace.update_in(cx, |workspace, _window, cx| {
 9897            assert!(
 9898                !pane.read(cx).is_zoomed(),
 9899                "Pane should unzoom after ZoomOut"
 9900            );
 9901            assert!(
 9902                workspace.zoomed.is_none(),
 9903                "Workspace clears zoom tracking after ZoomOut"
 9904            );
 9905        });
 9906
 9907        // Zoom Out again is a no-op
 9908        pane.update_in(cx, |pane, window, cx| {
 9909            pane.zoom_out(&crate::ZoomOut, window, cx);
 9910        });
 9911
 9912        workspace.update_in(cx, |workspace, _window, cx| {
 9913            assert!(
 9914                !pane.read(cx).is_zoomed(),
 9915                "Second ZoomOut keeps pane unzoomed"
 9916            );
 9917            assert!(
 9918                workspace.zoomed.is_none(),
 9919                "Workspace remains without zoomed pane"
 9920            );
 9921        });
 9922    }
 9923
 9924    #[gpui::test]
 9925    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9926        init_test(cx);
 9927        let fs = FakeFs::new(cx.executor());
 9928
 9929        let project = Project::test(fs, [], cx).await;
 9930        let (workspace, cx) =
 9931            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9932        workspace.update_in(cx, |workspace, window, cx| {
 9933            // Open two docks
 9934            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9935            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9936
 9937            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9938            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9939
 9940            assert!(left_dock.read(cx).is_open());
 9941            assert!(right_dock.read(cx).is_open());
 9942        });
 9943
 9944        workspace.update_in(cx, |workspace, window, cx| {
 9945            // Toggle all docks - should close both
 9946            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9947
 9948            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9949            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9950            assert!(!left_dock.read(cx).is_open());
 9951            assert!(!right_dock.read(cx).is_open());
 9952        });
 9953
 9954        workspace.update_in(cx, |workspace, window, cx| {
 9955            // Toggle again - should reopen both
 9956            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9957
 9958            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9959            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9960            assert!(left_dock.read(cx).is_open());
 9961            assert!(right_dock.read(cx).is_open());
 9962        });
 9963    }
 9964
 9965    #[gpui::test]
 9966    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9967        init_test(cx);
 9968        let fs = FakeFs::new(cx.executor());
 9969
 9970        let project = Project::test(fs, [], cx).await;
 9971        let (workspace, cx) =
 9972            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9973        workspace.update_in(cx, |workspace, window, cx| {
 9974            // Open two docks
 9975            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9976            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9977
 9978            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9979            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9980
 9981            assert!(left_dock.read(cx).is_open());
 9982            assert!(right_dock.read(cx).is_open());
 9983        });
 9984
 9985        workspace.update_in(cx, |workspace, window, cx| {
 9986            // Close them manually
 9987            workspace.toggle_dock(DockPosition::Left, window, cx);
 9988            workspace.toggle_dock(DockPosition::Right, window, cx);
 9989
 9990            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9991            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9992            assert!(!left_dock.read(cx).is_open());
 9993            assert!(!right_dock.read(cx).is_open());
 9994        });
 9995
 9996        workspace.update_in(cx, |workspace, window, cx| {
 9997            // Toggle all docks - only last closed (right dock) should reopen
 9998            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9999
10000            let left_dock = workspace.dock_at_position(DockPosition::Left);
10001            let right_dock = workspace.dock_at_position(DockPosition::Right);
10002            assert!(!left_dock.read(cx).is_open());
10003            assert!(right_dock.read(cx).is_open());
10004        });
10005    }
10006
10007    #[gpui::test]
10008    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10009        init_test(cx);
10010        let fs = FakeFs::new(cx.executor());
10011        let project = Project::test(fs, [], cx).await;
10012        let (workspace, cx) =
10013            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10014
10015        // Open two docks (left and right) with one panel each
10016        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10017            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10018            workspace.add_panel(left_panel.clone(), window, cx);
10019
10020            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10021            workspace.add_panel(right_panel.clone(), window, cx);
10022
10023            workspace.toggle_dock(DockPosition::Left, window, cx);
10024            workspace.toggle_dock(DockPosition::Right, window, cx);
10025
10026            // Verify initial state
10027            assert!(
10028                workspace.left_dock().read(cx).is_open(),
10029                "Left dock should be open"
10030            );
10031            assert_eq!(
10032                workspace
10033                    .left_dock()
10034                    .read(cx)
10035                    .visible_panel()
10036                    .unwrap()
10037                    .panel_id(),
10038                left_panel.panel_id(),
10039                "Left panel should be visible in left dock"
10040            );
10041            assert!(
10042                workspace.right_dock().read(cx).is_open(),
10043                "Right dock should be open"
10044            );
10045            assert_eq!(
10046                workspace
10047                    .right_dock()
10048                    .read(cx)
10049                    .visible_panel()
10050                    .unwrap()
10051                    .panel_id(),
10052                right_panel.panel_id(),
10053                "Right panel should be visible in right dock"
10054            );
10055            assert!(
10056                !workspace.bottom_dock().read(cx).is_open(),
10057                "Bottom dock should be closed"
10058            );
10059
10060            (left_panel, right_panel)
10061        });
10062
10063        // Focus the left panel and move it to the next position (bottom dock)
10064        workspace.update_in(cx, |workspace, window, cx| {
10065            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10066            assert!(
10067                left_panel.read(cx).focus_handle(cx).is_focused(window),
10068                "Left panel should be focused"
10069            );
10070        });
10071
10072        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10073
10074        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10075        workspace.update(cx, |workspace, cx| {
10076            assert!(
10077                !workspace.left_dock().read(cx).is_open(),
10078                "Left dock should be closed"
10079            );
10080            assert!(
10081                workspace.bottom_dock().read(cx).is_open(),
10082                "Bottom dock should now be open"
10083            );
10084            assert_eq!(
10085                left_panel.read(cx).position,
10086                DockPosition::Bottom,
10087                "Left panel should now be in the bottom dock"
10088            );
10089            assert_eq!(
10090                workspace
10091                    .bottom_dock()
10092                    .read(cx)
10093                    .visible_panel()
10094                    .unwrap()
10095                    .panel_id(),
10096                left_panel.panel_id(),
10097                "Left panel should be the visible panel in the bottom dock"
10098            );
10099        });
10100
10101        // Toggle all docks off
10102        workspace.update_in(cx, |workspace, window, cx| {
10103            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10104            assert!(
10105                !workspace.left_dock().read(cx).is_open(),
10106                "Left dock should be closed"
10107            );
10108            assert!(
10109                !workspace.right_dock().read(cx).is_open(),
10110                "Right dock should be closed"
10111            );
10112            assert!(
10113                !workspace.bottom_dock().read(cx).is_open(),
10114                "Bottom dock should be closed"
10115            );
10116        });
10117
10118        // Toggle all docks back on and verify positions are restored
10119        workspace.update_in(cx, |workspace, window, cx| {
10120            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10121            assert!(
10122                !workspace.left_dock().read(cx).is_open(),
10123                "Left dock should remain closed"
10124            );
10125            assert!(
10126                workspace.right_dock().read(cx).is_open(),
10127                "Right dock should remain open"
10128            );
10129            assert!(
10130                workspace.bottom_dock().read(cx).is_open(),
10131                "Bottom dock should remain open"
10132            );
10133            assert_eq!(
10134                left_panel.read(cx).position,
10135                DockPosition::Bottom,
10136                "Left panel should remain in the bottom dock"
10137            );
10138            assert_eq!(
10139                right_panel.read(cx).position,
10140                DockPosition::Right,
10141                "Right panel should remain in the right dock"
10142            );
10143            assert_eq!(
10144                workspace
10145                    .bottom_dock()
10146                    .read(cx)
10147                    .visible_panel()
10148                    .unwrap()
10149                    .panel_id(),
10150                left_panel.panel_id(),
10151                "Left panel should be the visible panel in the right dock"
10152            );
10153        });
10154    }
10155
10156    #[gpui::test]
10157    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10158        init_test(cx);
10159
10160        let fs = FakeFs::new(cx.executor());
10161
10162        let project = Project::test(fs, None, cx).await;
10163        let (workspace, cx) =
10164            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10165
10166        // Let's arrange the panes like this:
10167        //
10168        // +-----------------------+
10169        // |         top           |
10170        // +------+--------+-------+
10171        // | left | center | right |
10172        // +------+--------+-------+
10173        // |        bottom         |
10174        // +-----------------------+
10175
10176        let top_item = cx.new(|cx| {
10177            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10178        });
10179        let bottom_item = cx.new(|cx| {
10180            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10181        });
10182        let left_item = cx.new(|cx| {
10183            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10184        });
10185        let right_item = cx.new(|cx| {
10186            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10187        });
10188        let center_item = cx.new(|cx| {
10189            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10190        });
10191
10192        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10193            let top_pane_id = workspace.active_pane().entity_id();
10194            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10195            workspace.split_pane(
10196                workspace.active_pane().clone(),
10197                SplitDirection::Down,
10198                window,
10199                cx,
10200            );
10201            top_pane_id
10202        });
10203        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10204            let bottom_pane_id = workspace.active_pane().entity_id();
10205            workspace.add_item_to_active_pane(
10206                Box::new(bottom_item.clone()),
10207                None,
10208                false,
10209                window,
10210                cx,
10211            );
10212            workspace.split_pane(
10213                workspace.active_pane().clone(),
10214                SplitDirection::Up,
10215                window,
10216                cx,
10217            );
10218            bottom_pane_id
10219        });
10220        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10221            let left_pane_id = workspace.active_pane().entity_id();
10222            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10223            workspace.split_pane(
10224                workspace.active_pane().clone(),
10225                SplitDirection::Right,
10226                window,
10227                cx,
10228            );
10229            left_pane_id
10230        });
10231        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10232            let right_pane_id = workspace.active_pane().entity_id();
10233            workspace.add_item_to_active_pane(
10234                Box::new(right_item.clone()),
10235                None,
10236                false,
10237                window,
10238                cx,
10239            );
10240            workspace.split_pane(
10241                workspace.active_pane().clone(),
10242                SplitDirection::Left,
10243                window,
10244                cx,
10245            );
10246            right_pane_id
10247        });
10248        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10249            let center_pane_id = workspace.active_pane().entity_id();
10250            workspace.add_item_to_active_pane(
10251                Box::new(center_item.clone()),
10252                None,
10253                false,
10254                window,
10255                cx,
10256            );
10257            center_pane_id
10258        });
10259        cx.executor().run_until_parked();
10260
10261        workspace.update_in(cx, |workspace, window, cx| {
10262            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10263
10264            // Join into next from center pane into right
10265            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10266        });
10267
10268        workspace.update_in(cx, |workspace, window, cx| {
10269            let active_pane = workspace.active_pane();
10270            assert_eq!(right_pane_id, active_pane.entity_id());
10271            assert_eq!(2, active_pane.read(cx).items_len());
10272            let item_ids_in_pane =
10273                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10274            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10275            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10276
10277            // Join into next from right pane into bottom
10278            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10279        });
10280
10281        workspace.update_in(cx, |workspace, window, cx| {
10282            let active_pane = workspace.active_pane();
10283            assert_eq!(bottom_pane_id, active_pane.entity_id());
10284            assert_eq!(3, active_pane.read(cx).items_len());
10285            let item_ids_in_pane =
10286                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10287            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10288            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10289            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10290
10291            // Join into next from bottom pane into left
10292            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10293        });
10294
10295        workspace.update_in(cx, |workspace, window, cx| {
10296            let active_pane = workspace.active_pane();
10297            assert_eq!(left_pane_id, active_pane.entity_id());
10298            assert_eq!(4, active_pane.read(cx).items_len());
10299            let item_ids_in_pane =
10300                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10301            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10302            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10303            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10304            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10305
10306            // Join into next from left pane into top
10307            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10308        });
10309
10310        workspace.update_in(cx, |workspace, window, cx| {
10311            let active_pane = workspace.active_pane();
10312            assert_eq!(top_pane_id, active_pane.entity_id());
10313            assert_eq!(5, active_pane.read(cx).items_len());
10314            let item_ids_in_pane =
10315                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10316            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10317            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10318            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10319            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10320            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10321
10322            // Single pane left: no-op
10323            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10324        });
10325
10326        workspace.update(cx, |workspace, _cx| {
10327            let active_pane = workspace.active_pane();
10328            assert_eq!(top_pane_id, active_pane.entity_id());
10329        });
10330    }
10331
10332    fn add_an_item_to_active_pane(
10333        cx: &mut VisualTestContext,
10334        workspace: &Entity<Workspace>,
10335        item_id: u64,
10336    ) -> Entity<TestItem> {
10337        let item = cx.new(|cx| {
10338            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10339                item_id,
10340                "item{item_id}.txt",
10341                cx,
10342            )])
10343        });
10344        workspace.update_in(cx, |workspace, window, cx| {
10345            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10346        });
10347        item
10348    }
10349
10350    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10351        workspace.update_in(cx, |workspace, window, cx| {
10352            workspace.split_pane(
10353                workspace.active_pane().clone(),
10354                SplitDirection::Right,
10355                window,
10356                cx,
10357            )
10358        })
10359    }
10360
10361    #[gpui::test]
10362    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10363        init_test(cx);
10364        let fs = FakeFs::new(cx.executor());
10365        let project = Project::test(fs, None, cx).await;
10366        let (workspace, cx) =
10367            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10368
10369        add_an_item_to_active_pane(cx, &workspace, 1);
10370        split_pane(cx, &workspace);
10371        add_an_item_to_active_pane(cx, &workspace, 2);
10372        split_pane(cx, &workspace); // empty pane
10373        split_pane(cx, &workspace);
10374        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10375
10376        cx.executor().run_until_parked();
10377
10378        workspace.update(cx, |workspace, cx| {
10379            let num_panes = workspace.panes().len();
10380            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10381            let active_item = workspace
10382                .active_pane()
10383                .read(cx)
10384                .active_item()
10385                .expect("item is in focus");
10386
10387            assert_eq!(num_panes, 4);
10388            assert_eq!(num_items_in_current_pane, 1);
10389            assert_eq!(active_item.item_id(), last_item.item_id());
10390        });
10391
10392        workspace.update_in(cx, |workspace, window, cx| {
10393            workspace.join_all_panes(window, cx);
10394        });
10395
10396        workspace.update(cx, |workspace, cx| {
10397            let num_panes = workspace.panes().len();
10398            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10399            let active_item = workspace
10400                .active_pane()
10401                .read(cx)
10402                .active_item()
10403                .expect("item is in focus");
10404
10405            assert_eq!(num_panes, 1);
10406            assert_eq!(num_items_in_current_pane, 3);
10407            assert_eq!(active_item.item_id(), last_item.item_id());
10408        });
10409    }
10410    struct TestModal(FocusHandle);
10411
10412    impl TestModal {
10413        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10414            Self(cx.focus_handle())
10415        }
10416    }
10417
10418    impl EventEmitter<DismissEvent> for TestModal {}
10419
10420    impl Focusable for TestModal {
10421        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10422            self.0.clone()
10423        }
10424    }
10425
10426    impl ModalView for TestModal {}
10427
10428    impl Render for TestModal {
10429        fn render(
10430            &mut self,
10431            _window: &mut Window,
10432            _cx: &mut Context<TestModal>,
10433        ) -> impl IntoElement {
10434            div().track_focus(&self.0)
10435        }
10436    }
10437
10438    #[gpui::test]
10439    async fn test_panels(cx: &mut gpui::TestAppContext) {
10440        init_test(cx);
10441        let fs = FakeFs::new(cx.executor());
10442
10443        let project = Project::test(fs, [], cx).await;
10444        let (workspace, cx) =
10445            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10446
10447        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10448            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10449            workspace.add_panel(panel_1.clone(), window, cx);
10450            workspace.toggle_dock(DockPosition::Left, window, cx);
10451            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10452            workspace.add_panel(panel_2.clone(), window, cx);
10453            workspace.toggle_dock(DockPosition::Right, window, cx);
10454
10455            let left_dock = workspace.left_dock();
10456            assert_eq!(
10457                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10458                panel_1.panel_id()
10459            );
10460            assert_eq!(
10461                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10462                panel_1.size(window, cx)
10463            );
10464
10465            left_dock.update(cx, |left_dock, cx| {
10466                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10467            });
10468            assert_eq!(
10469                workspace
10470                    .right_dock()
10471                    .read(cx)
10472                    .visible_panel()
10473                    .unwrap()
10474                    .panel_id(),
10475                panel_2.panel_id(),
10476            );
10477
10478            (panel_1, panel_2)
10479        });
10480
10481        // Move panel_1 to the right
10482        panel_1.update_in(cx, |panel_1, window, cx| {
10483            panel_1.set_position(DockPosition::Right, window, cx)
10484        });
10485
10486        workspace.update_in(cx, |workspace, window, cx| {
10487            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10488            // Since it was the only panel on the left, the left dock should now be closed.
10489            assert!(!workspace.left_dock().read(cx).is_open());
10490            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10491            let right_dock = workspace.right_dock();
10492            assert_eq!(
10493                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10494                panel_1.panel_id()
10495            );
10496            assert_eq!(
10497                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10498                px(1337.)
10499            );
10500
10501            // Now we move panel_2 to the left
10502            panel_2.set_position(DockPosition::Left, window, cx);
10503        });
10504
10505        workspace.update(cx, |workspace, cx| {
10506            // Since panel_2 was not visible on the right, we don't open the left dock.
10507            assert!(!workspace.left_dock().read(cx).is_open());
10508            // And the right dock is unaffected in its displaying of panel_1
10509            assert!(workspace.right_dock().read(cx).is_open());
10510            assert_eq!(
10511                workspace
10512                    .right_dock()
10513                    .read(cx)
10514                    .visible_panel()
10515                    .unwrap()
10516                    .panel_id(),
10517                panel_1.panel_id(),
10518            );
10519        });
10520
10521        // Move panel_1 back to the left
10522        panel_1.update_in(cx, |panel_1, window, cx| {
10523            panel_1.set_position(DockPosition::Left, window, cx)
10524        });
10525
10526        workspace.update_in(cx, |workspace, window, cx| {
10527            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10528            let left_dock = workspace.left_dock();
10529            assert!(left_dock.read(cx).is_open());
10530            assert_eq!(
10531                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10532                panel_1.panel_id()
10533            );
10534            assert_eq!(
10535                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10536                px(1337.)
10537            );
10538            // And the right dock should be closed as it no longer has any panels.
10539            assert!(!workspace.right_dock().read(cx).is_open());
10540
10541            // Now we move panel_1 to the bottom
10542            panel_1.set_position(DockPosition::Bottom, window, cx);
10543        });
10544
10545        workspace.update_in(cx, |workspace, window, cx| {
10546            // Since panel_1 was visible on the left, we close the left dock.
10547            assert!(!workspace.left_dock().read(cx).is_open());
10548            // The bottom dock is sized based on the panel's default size,
10549            // since the panel orientation changed from vertical to horizontal.
10550            let bottom_dock = workspace.bottom_dock();
10551            assert_eq!(
10552                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10553                panel_1.size(window, cx),
10554            );
10555            // Close bottom dock and move panel_1 back to the left.
10556            bottom_dock.update(cx, |bottom_dock, cx| {
10557                bottom_dock.set_open(false, window, cx)
10558            });
10559            panel_1.set_position(DockPosition::Left, window, cx);
10560        });
10561
10562        // Emit activated event on panel 1
10563        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10564
10565        // Now the left dock is open and panel_1 is active and focused.
10566        workspace.update_in(cx, |workspace, window, cx| {
10567            let left_dock = workspace.left_dock();
10568            assert!(left_dock.read(cx).is_open());
10569            assert_eq!(
10570                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10571                panel_1.panel_id(),
10572            );
10573            assert!(panel_1.focus_handle(cx).is_focused(window));
10574        });
10575
10576        // Emit closed event on panel 2, which is not active
10577        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10578
10579        // Wo don't close the left dock, because panel_2 wasn't the active panel
10580        workspace.update(cx, |workspace, cx| {
10581            let left_dock = workspace.left_dock();
10582            assert!(left_dock.read(cx).is_open());
10583            assert_eq!(
10584                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10585                panel_1.panel_id(),
10586            );
10587        });
10588
10589        // Emitting a ZoomIn event shows the panel as zoomed.
10590        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10591        workspace.read_with(cx, |workspace, _| {
10592            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10593            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10594        });
10595
10596        // Move panel to another dock while it is zoomed
10597        panel_1.update_in(cx, |panel, window, cx| {
10598            panel.set_position(DockPosition::Right, window, cx)
10599        });
10600        workspace.read_with(cx, |workspace, _| {
10601            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10602
10603            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10604        });
10605
10606        // This is a helper for getting a:
10607        // - valid focus on an element,
10608        // - that isn't a part of the panes and panels system of the Workspace,
10609        // - and doesn't trigger the 'on_focus_lost' API.
10610        let focus_other_view = {
10611            let workspace = workspace.clone();
10612            move |cx: &mut VisualTestContext| {
10613                workspace.update_in(cx, |workspace, window, cx| {
10614                    if workspace.active_modal::<TestModal>(cx).is_some() {
10615                        workspace.toggle_modal(window, cx, TestModal::new);
10616                        workspace.toggle_modal(window, cx, TestModal::new);
10617                    } else {
10618                        workspace.toggle_modal(window, cx, TestModal::new);
10619                    }
10620                })
10621            }
10622        };
10623
10624        // If focus is transferred to another view that's not a panel or another pane, we still show
10625        // the panel as zoomed.
10626        focus_other_view(cx);
10627        workspace.read_with(cx, |workspace, _| {
10628            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10629            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10630        });
10631
10632        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10633        workspace.update_in(cx, |_workspace, window, cx| {
10634            cx.focus_self(window);
10635        });
10636        workspace.read_with(cx, |workspace, _| {
10637            assert_eq!(workspace.zoomed, None);
10638            assert_eq!(workspace.zoomed_position, None);
10639        });
10640
10641        // If focus is transferred again to another view that's not a panel or a pane, we won't
10642        // show the panel as zoomed because it wasn't zoomed before.
10643        focus_other_view(cx);
10644        workspace.read_with(cx, |workspace, _| {
10645            assert_eq!(workspace.zoomed, None);
10646            assert_eq!(workspace.zoomed_position, None);
10647        });
10648
10649        // When the panel is activated, it is zoomed again.
10650        cx.dispatch_action(ToggleRightDock);
10651        workspace.read_with(cx, |workspace, _| {
10652            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10653            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10654        });
10655
10656        // Emitting a ZoomOut event unzooms the panel.
10657        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10658        workspace.read_with(cx, |workspace, _| {
10659            assert_eq!(workspace.zoomed, None);
10660            assert_eq!(workspace.zoomed_position, None);
10661        });
10662
10663        // Emit closed event on panel 1, which is active
10664        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10665
10666        // Now the left dock is closed, because panel_1 was the active panel
10667        workspace.update(cx, |workspace, cx| {
10668            let right_dock = workspace.right_dock();
10669            assert!(!right_dock.read(cx).is_open());
10670        });
10671    }
10672
10673    #[gpui::test]
10674    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10675        init_test(cx);
10676
10677        let fs = FakeFs::new(cx.background_executor.clone());
10678        let project = Project::test(fs, [], cx).await;
10679        let (workspace, cx) =
10680            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10681        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10682
10683        let dirty_regular_buffer = cx.new(|cx| {
10684            TestItem::new(cx)
10685                .with_dirty(true)
10686                .with_label("1.txt")
10687                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10688        });
10689        let dirty_regular_buffer_2 = cx.new(|cx| {
10690            TestItem::new(cx)
10691                .with_dirty(true)
10692                .with_label("2.txt")
10693                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10694        });
10695        let dirty_multi_buffer_with_both = cx.new(|cx| {
10696            TestItem::new(cx)
10697                .with_dirty(true)
10698                .with_buffer_kind(ItemBufferKind::Multibuffer)
10699                .with_label("Fake Project Search")
10700                .with_project_items(&[
10701                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10702                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10703                ])
10704        });
10705        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10706        workspace.update_in(cx, |workspace, window, cx| {
10707            workspace.add_item(
10708                pane.clone(),
10709                Box::new(dirty_regular_buffer.clone()),
10710                None,
10711                false,
10712                false,
10713                window,
10714                cx,
10715            );
10716            workspace.add_item(
10717                pane.clone(),
10718                Box::new(dirty_regular_buffer_2.clone()),
10719                None,
10720                false,
10721                false,
10722                window,
10723                cx,
10724            );
10725            workspace.add_item(
10726                pane.clone(),
10727                Box::new(dirty_multi_buffer_with_both.clone()),
10728                None,
10729                false,
10730                false,
10731                window,
10732                cx,
10733            );
10734        });
10735
10736        pane.update_in(cx, |pane, window, cx| {
10737            pane.activate_item(2, true, true, window, cx);
10738            assert_eq!(
10739                pane.active_item().unwrap().item_id(),
10740                multi_buffer_with_both_files_id,
10741                "Should select the multi buffer in the pane"
10742            );
10743        });
10744        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10745            pane.close_other_items(
10746                &CloseOtherItems {
10747                    save_intent: Some(SaveIntent::Save),
10748                    close_pinned: true,
10749                },
10750                None,
10751                window,
10752                cx,
10753            )
10754        });
10755        cx.background_executor.run_until_parked();
10756        assert!(!cx.has_pending_prompt());
10757        close_all_but_multi_buffer_task
10758            .await
10759            .expect("Closing all buffers but the multi buffer failed");
10760        pane.update(cx, |pane, cx| {
10761            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10762            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10763            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10764            assert_eq!(pane.items_len(), 1);
10765            assert_eq!(
10766                pane.active_item().unwrap().item_id(),
10767                multi_buffer_with_both_files_id,
10768                "Should have only the multi buffer left in the pane"
10769            );
10770            assert!(
10771                dirty_multi_buffer_with_both.read(cx).is_dirty,
10772                "The multi buffer containing the unsaved buffer should still be dirty"
10773            );
10774        });
10775
10776        dirty_regular_buffer.update(cx, |buffer, cx| {
10777            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10778        });
10779
10780        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10781            pane.close_active_item(
10782                &CloseActiveItem {
10783                    save_intent: Some(SaveIntent::Close),
10784                    close_pinned: false,
10785                },
10786                window,
10787                cx,
10788            )
10789        });
10790        cx.background_executor.run_until_parked();
10791        assert!(
10792            cx.has_pending_prompt(),
10793            "Dirty multi buffer should prompt a save dialog"
10794        );
10795        cx.simulate_prompt_answer("Save");
10796        cx.background_executor.run_until_parked();
10797        close_multi_buffer_task
10798            .await
10799            .expect("Closing the multi buffer failed");
10800        pane.update(cx, |pane, cx| {
10801            assert_eq!(
10802                dirty_multi_buffer_with_both.read(cx).save_count,
10803                1,
10804                "Multi buffer item should get be saved"
10805            );
10806            // Test impl does not save inner items, so we do not assert them
10807            assert_eq!(
10808                pane.items_len(),
10809                0,
10810                "No more items should be left in the pane"
10811            );
10812            assert!(pane.active_item().is_none());
10813        });
10814    }
10815
10816    #[gpui::test]
10817    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10818        cx: &mut TestAppContext,
10819    ) {
10820        init_test(cx);
10821
10822        let fs = FakeFs::new(cx.background_executor.clone());
10823        let project = Project::test(fs, [], cx).await;
10824        let (workspace, cx) =
10825            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10826        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10827
10828        let dirty_regular_buffer = cx.new(|cx| {
10829            TestItem::new(cx)
10830                .with_dirty(true)
10831                .with_label("1.txt")
10832                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10833        });
10834        let dirty_regular_buffer_2 = cx.new(|cx| {
10835            TestItem::new(cx)
10836                .with_dirty(true)
10837                .with_label("2.txt")
10838                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10839        });
10840        let clear_regular_buffer = cx.new(|cx| {
10841            TestItem::new(cx)
10842                .with_label("3.txt")
10843                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10844        });
10845
10846        let dirty_multi_buffer_with_both = cx.new(|cx| {
10847            TestItem::new(cx)
10848                .with_dirty(true)
10849                .with_buffer_kind(ItemBufferKind::Multibuffer)
10850                .with_label("Fake Project Search")
10851                .with_project_items(&[
10852                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10853                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10854                    clear_regular_buffer.read(cx).project_items[0].clone(),
10855                ])
10856        });
10857        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10858        workspace.update_in(cx, |workspace, window, cx| {
10859            workspace.add_item(
10860                pane.clone(),
10861                Box::new(dirty_regular_buffer.clone()),
10862                None,
10863                false,
10864                false,
10865                window,
10866                cx,
10867            );
10868            workspace.add_item(
10869                pane.clone(),
10870                Box::new(dirty_multi_buffer_with_both.clone()),
10871                None,
10872                false,
10873                false,
10874                window,
10875                cx,
10876            );
10877        });
10878
10879        pane.update_in(cx, |pane, window, cx| {
10880            pane.activate_item(1, true, true, window, cx);
10881            assert_eq!(
10882                pane.active_item().unwrap().item_id(),
10883                multi_buffer_with_both_files_id,
10884                "Should select the multi buffer in the pane"
10885            );
10886        });
10887        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10888            pane.close_active_item(
10889                &CloseActiveItem {
10890                    save_intent: None,
10891                    close_pinned: false,
10892                },
10893                window,
10894                cx,
10895            )
10896        });
10897        cx.background_executor.run_until_parked();
10898        assert!(
10899            cx.has_pending_prompt(),
10900            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10901        );
10902    }
10903
10904    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10905    /// closed when they are deleted from disk.
10906    #[gpui::test]
10907    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10908        init_test(cx);
10909
10910        // Enable the close_on_disk_deletion setting
10911        cx.update_global(|store: &mut SettingsStore, cx| {
10912            store.update_user_settings(cx, |settings| {
10913                settings.workspace.close_on_file_delete = Some(true);
10914            });
10915        });
10916
10917        let fs = FakeFs::new(cx.background_executor.clone());
10918        let project = Project::test(fs, [], cx).await;
10919        let (workspace, cx) =
10920            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10921        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10922
10923        // Create a test item that simulates a file
10924        let item = cx.new(|cx| {
10925            TestItem::new(cx)
10926                .with_label("test.txt")
10927                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10928        });
10929
10930        // Add item to workspace
10931        workspace.update_in(cx, |workspace, window, cx| {
10932            workspace.add_item(
10933                pane.clone(),
10934                Box::new(item.clone()),
10935                None,
10936                false,
10937                false,
10938                window,
10939                cx,
10940            );
10941        });
10942
10943        // Verify the item is in the pane
10944        pane.read_with(cx, |pane, _| {
10945            assert_eq!(pane.items().count(), 1);
10946        });
10947
10948        // Simulate file deletion by setting the item's deleted state
10949        item.update(cx, |item, _| {
10950            item.set_has_deleted_file(true);
10951        });
10952
10953        // Emit UpdateTab event to trigger the close behavior
10954        cx.run_until_parked();
10955        item.update(cx, |_, cx| {
10956            cx.emit(ItemEvent::UpdateTab);
10957        });
10958
10959        // Allow the close operation to complete
10960        cx.run_until_parked();
10961
10962        // Verify the item was automatically closed
10963        pane.read_with(cx, |pane, _| {
10964            assert_eq!(
10965                pane.items().count(),
10966                0,
10967                "Item should be automatically closed when file is deleted"
10968            );
10969        });
10970    }
10971
10972    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10973    /// open with a strikethrough when they are deleted from disk.
10974    #[gpui::test]
10975    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10976        init_test(cx);
10977
10978        // Ensure close_on_disk_deletion is disabled (default)
10979        cx.update_global(|store: &mut SettingsStore, cx| {
10980            store.update_user_settings(cx, |settings| {
10981                settings.workspace.close_on_file_delete = Some(false);
10982            });
10983        });
10984
10985        let fs = FakeFs::new(cx.background_executor.clone());
10986        let project = Project::test(fs, [], cx).await;
10987        let (workspace, cx) =
10988            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10989        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10990
10991        // Create a test item that simulates a file
10992        let item = cx.new(|cx| {
10993            TestItem::new(cx)
10994                .with_label("test.txt")
10995                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10996        });
10997
10998        // Add item to workspace
10999        workspace.update_in(cx, |workspace, window, cx| {
11000            workspace.add_item(
11001                pane.clone(),
11002                Box::new(item.clone()),
11003                None,
11004                false,
11005                false,
11006                window,
11007                cx,
11008            );
11009        });
11010
11011        // Verify the item is in the pane
11012        pane.read_with(cx, |pane, _| {
11013            assert_eq!(pane.items().count(), 1);
11014        });
11015
11016        // Simulate file deletion
11017        item.update(cx, |item, _| {
11018            item.set_has_deleted_file(true);
11019        });
11020
11021        // Emit UpdateTab event
11022        cx.run_until_parked();
11023        item.update(cx, |_, cx| {
11024            cx.emit(ItemEvent::UpdateTab);
11025        });
11026
11027        // Allow any potential close operation to complete
11028        cx.run_until_parked();
11029
11030        // Verify the item remains open (with strikethrough)
11031        pane.read_with(cx, |pane, _| {
11032            assert_eq!(
11033                pane.items().count(),
11034                1,
11035                "Item should remain open when close_on_disk_deletion is disabled"
11036            );
11037        });
11038
11039        // Verify the item shows as deleted
11040        item.read_with(cx, |item, _| {
11041            assert!(
11042                item.has_deleted_file,
11043                "Item should be marked as having deleted file"
11044            );
11045        });
11046    }
11047
11048    /// Tests that dirty files are not automatically closed when deleted from disk,
11049    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11050    /// unsaved changes without being prompted.
11051    #[gpui::test]
11052    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11053        init_test(cx);
11054
11055        // Enable the close_on_file_delete setting
11056        cx.update_global(|store: &mut SettingsStore, cx| {
11057            store.update_user_settings(cx, |settings| {
11058                settings.workspace.close_on_file_delete = Some(true);
11059            });
11060        });
11061
11062        let fs = FakeFs::new(cx.background_executor.clone());
11063        let project = Project::test(fs, [], cx).await;
11064        let (workspace, cx) =
11065            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11066        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11067
11068        // Create a dirty test item
11069        let item = cx.new(|cx| {
11070            TestItem::new(cx)
11071                .with_dirty(true)
11072                .with_label("test.txt")
11073                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11074        });
11075
11076        // Add item to workspace
11077        workspace.update_in(cx, |workspace, window, cx| {
11078            workspace.add_item(
11079                pane.clone(),
11080                Box::new(item.clone()),
11081                None,
11082                false,
11083                false,
11084                window,
11085                cx,
11086            );
11087        });
11088
11089        // Simulate file deletion
11090        item.update(cx, |item, _| {
11091            item.set_has_deleted_file(true);
11092        });
11093
11094        // Emit UpdateTab event to trigger the close behavior
11095        cx.run_until_parked();
11096        item.update(cx, |_, cx| {
11097            cx.emit(ItemEvent::UpdateTab);
11098        });
11099
11100        // Allow any potential close operation to complete
11101        cx.run_until_parked();
11102
11103        // Verify the item remains open (dirty files are not auto-closed)
11104        pane.read_with(cx, |pane, _| {
11105            assert_eq!(
11106                pane.items().count(),
11107                1,
11108                "Dirty items should not be automatically closed even when file is deleted"
11109            );
11110        });
11111
11112        // Verify the item is marked as deleted and still dirty
11113        item.read_with(cx, |item, _| {
11114            assert!(
11115                item.has_deleted_file,
11116                "Item should be marked as having deleted file"
11117            );
11118            assert!(item.is_dirty, "Item should still be dirty");
11119        });
11120    }
11121
11122    /// Tests that navigation history is cleaned up when files are auto-closed
11123    /// due to deletion from disk.
11124    #[gpui::test]
11125    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11126        init_test(cx);
11127
11128        // Enable the close_on_file_delete setting
11129        cx.update_global(|store: &mut SettingsStore, cx| {
11130            store.update_user_settings(cx, |settings| {
11131                settings.workspace.close_on_file_delete = Some(true);
11132            });
11133        });
11134
11135        let fs = FakeFs::new(cx.background_executor.clone());
11136        let project = Project::test(fs, [], cx).await;
11137        let (workspace, cx) =
11138            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11139        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11140
11141        // Create test items
11142        let item1 = cx.new(|cx| {
11143            TestItem::new(cx)
11144                .with_label("test1.txt")
11145                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11146        });
11147        let item1_id = item1.item_id();
11148
11149        let item2 = cx.new(|cx| {
11150            TestItem::new(cx)
11151                .with_label("test2.txt")
11152                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11153        });
11154
11155        // Add items to workspace
11156        workspace.update_in(cx, |workspace, window, cx| {
11157            workspace.add_item(
11158                pane.clone(),
11159                Box::new(item1.clone()),
11160                None,
11161                false,
11162                false,
11163                window,
11164                cx,
11165            );
11166            workspace.add_item(
11167                pane.clone(),
11168                Box::new(item2.clone()),
11169                None,
11170                false,
11171                false,
11172                window,
11173                cx,
11174            );
11175        });
11176
11177        // Activate item1 to ensure it gets navigation entries
11178        pane.update_in(cx, |pane, window, cx| {
11179            pane.activate_item(0, true, true, window, cx);
11180        });
11181
11182        // Switch to item2 and back to create navigation history
11183        pane.update_in(cx, |pane, window, cx| {
11184            pane.activate_item(1, true, true, window, cx);
11185        });
11186        cx.run_until_parked();
11187
11188        pane.update_in(cx, |pane, window, cx| {
11189            pane.activate_item(0, true, true, window, cx);
11190        });
11191        cx.run_until_parked();
11192
11193        // Simulate file deletion for item1
11194        item1.update(cx, |item, _| {
11195            item.set_has_deleted_file(true);
11196        });
11197
11198        // Emit UpdateTab event to trigger the close behavior
11199        item1.update(cx, |_, cx| {
11200            cx.emit(ItemEvent::UpdateTab);
11201        });
11202        cx.run_until_parked();
11203
11204        // Verify item1 was closed
11205        pane.read_with(cx, |pane, _| {
11206            assert_eq!(
11207                pane.items().count(),
11208                1,
11209                "Should have 1 item remaining after auto-close"
11210            );
11211        });
11212
11213        // Check navigation history after close
11214        let has_item = pane.read_with(cx, |pane, cx| {
11215            let mut has_item = false;
11216            pane.nav_history().for_each_entry(cx, |entry, _| {
11217                if entry.item.id() == item1_id {
11218                    has_item = true;
11219                }
11220            });
11221            has_item
11222        });
11223
11224        assert!(
11225            !has_item,
11226            "Navigation history should not contain closed item entries"
11227        );
11228    }
11229
11230    #[gpui::test]
11231    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11232        cx: &mut TestAppContext,
11233    ) {
11234        init_test(cx);
11235
11236        let fs = FakeFs::new(cx.background_executor.clone());
11237        let project = Project::test(fs, [], cx).await;
11238        let (workspace, cx) =
11239            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11240        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11241
11242        let dirty_regular_buffer = cx.new(|cx| {
11243            TestItem::new(cx)
11244                .with_dirty(true)
11245                .with_label("1.txt")
11246                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11247        });
11248        let dirty_regular_buffer_2 = cx.new(|cx| {
11249            TestItem::new(cx)
11250                .with_dirty(true)
11251                .with_label("2.txt")
11252                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11253        });
11254        let clear_regular_buffer = cx.new(|cx| {
11255            TestItem::new(cx)
11256                .with_label("3.txt")
11257                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11258        });
11259
11260        let dirty_multi_buffer = cx.new(|cx| {
11261            TestItem::new(cx)
11262                .with_dirty(true)
11263                .with_buffer_kind(ItemBufferKind::Multibuffer)
11264                .with_label("Fake Project Search")
11265                .with_project_items(&[
11266                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11267                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11268                    clear_regular_buffer.read(cx).project_items[0].clone(),
11269                ])
11270        });
11271        workspace.update_in(cx, |workspace, window, cx| {
11272            workspace.add_item(
11273                pane.clone(),
11274                Box::new(dirty_regular_buffer.clone()),
11275                None,
11276                false,
11277                false,
11278                window,
11279                cx,
11280            );
11281            workspace.add_item(
11282                pane.clone(),
11283                Box::new(dirty_regular_buffer_2.clone()),
11284                None,
11285                false,
11286                false,
11287                window,
11288                cx,
11289            );
11290            workspace.add_item(
11291                pane.clone(),
11292                Box::new(dirty_multi_buffer.clone()),
11293                None,
11294                false,
11295                false,
11296                window,
11297                cx,
11298            );
11299        });
11300
11301        pane.update_in(cx, |pane, window, cx| {
11302            pane.activate_item(2, true, true, window, cx);
11303            assert_eq!(
11304                pane.active_item().unwrap().item_id(),
11305                dirty_multi_buffer.item_id(),
11306                "Should select the multi buffer in the pane"
11307            );
11308        });
11309        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11310            pane.close_active_item(
11311                &CloseActiveItem {
11312                    save_intent: None,
11313                    close_pinned: false,
11314                },
11315                window,
11316                cx,
11317            )
11318        });
11319        cx.background_executor.run_until_parked();
11320        assert!(
11321            !cx.has_pending_prompt(),
11322            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11323        );
11324        close_multi_buffer_task
11325            .await
11326            .expect("Closing multi buffer failed");
11327        pane.update(cx, |pane, cx| {
11328            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11329            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11330            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11331            assert_eq!(
11332                pane.items()
11333                    .map(|item| item.item_id())
11334                    .sorted()
11335                    .collect::<Vec<_>>(),
11336                vec![
11337                    dirty_regular_buffer.item_id(),
11338                    dirty_regular_buffer_2.item_id(),
11339                ],
11340                "Should have no multi buffer left in the pane"
11341            );
11342            assert!(dirty_regular_buffer.read(cx).is_dirty);
11343            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11344        });
11345    }
11346
11347    #[gpui::test]
11348    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11349        init_test(cx);
11350        let fs = FakeFs::new(cx.executor());
11351        let project = Project::test(fs, [], cx).await;
11352        let (workspace, cx) =
11353            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11354
11355        // Add a new panel to the right dock, opening the dock and setting the
11356        // focus to the new panel.
11357        let panel = workspace.update_in(cx, |workspace, window, cx| {
11358            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11359            workspace.add_panel(panel.clone(), window, cx);
11360
11361            workspace
11362                .right_dock()
11363                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11364
11365            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11366
11367            panel
11368        });
11369
11370        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11371        // panel to the next valid position which, in this case, is the left
11372        // dock.
11373        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11374        workspace.update(cx, |workspace, cx| {
11375            assert!(workspace.left_dock().read(cx).is_open());
11376            assert_eq!(panel.read(cx).position, DockPosition::Left);
11377        });
11378
11379        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11380        // panel to the next valid position which, in this case, is the bottom
11381        // dock.
11382        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11383        workspace.update(cx, |workspace, cx| {
11384            assert!(workspace.bottom_dock().read(cx).is_open());
11385            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11386        });
11387
11388        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11389        // around moving the panel to its initial position, the right dock.
11390        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11391        workspace.update(cx, |workspace, cx| {
11392            assert!(workspace.right_dock().read(cx).is_open());
11393            assert_eq!(panel.read(cx).position, DockPosition::Right);
11394        });
11395
11396        // Remove focus from the panel, ensuring that, if the panel is not
11397        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11398        // the panel's position, so the panel is still in the right dock.
11399        workspace.update_in(cx, |workspace, window, cx| {
11400            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11401        });
11402
11403        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11404        workspace.update(cx, |workspace, cx| {
11405            assert!(workspace.right_dock().read(cx).is_open());
11406            assert_eq!(panel.read(cx).position, DockPosition::Right);
11407        });
11408    }
11409
11410    #[gpui::test]
11411    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11412        init_test(cx);
11413
11414        let fs = FakeFs::new(cx.executor());
11415        let project = Project::test(fs, [], cx).await;
11416        let (workspace, cx) =
11417            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11418
11419        let item_1 = cx.new(|cx| {
11420            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11421        });
11422        workspace.update_in(cx, |workspace, window, cx| {
11423            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11424            workspace.move_item_to_pane_in_direction(
11425                &MoveItemToPaneInDirection {
11426                    direction: SplitDirection::Right,
11427                    focus: true,
11428                    clone: false,
11429                },
11430                window,
11431                cx,
11432            );
11433            workspace.move_item_to_pane_at_index(
11434                &MoveItemToPane {
11435                    destination: 3,
11436                    focus: true,
11437                    clone: false,
11438                },
11439                window,
11440                cx,
11441            );
11442
11443            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11444            assert_eq!(
11445                pane_items_paths(&workspace.active_pane, cx),
11446                vec!["first.txt".to_string()],
11447                "Single item was not moved anywhere"
11448            );
11449        });
11450
11451        let item_2 = cx.new(|cx| {
11452            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11453        });
11454        workspace.update_in(cx, |workspace, window, cx| {
11455            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11456            assert_eq!(
11457                pane_items_paths(&workspace.panes[0], cx),
11458                vec!["first.txt".to_string(), "second.txt".to_string()],
11459            );
11460            workspace.move_item_to_pane_in_direction(
11461                &MoveItemToPaneInDirection {
11462                    direction: SplitDirection::Right,
11463                    focus: true,
11464                    clone: false,
11465                },
11466                window,
11467                cx,
11468            );
11469
11470            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11471            assert_eq!(
11472                pane_items_paths(&workspace.panes[0], cx),
11473                vec!["first.txt".to_string()],
11474                "After moving, one item should be left in the original pane"
11475            );
11476            assert_eq!(
11477                pane_items_paths(&workspace.panes[1], cx),
11478                vec!["second.txt".to_string()],
11479                "New item should have been moved to the new pane"
11480            );
11481        });
11482
11483        let item_3 = cx.new(|cx| {
11484            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11485        });
11486        workspace.update_in(cx, |workspace, window, cx| {
11487            let original_pane = workspace.panes[0].clone();
11488            workspace.set_active_pane(&original_pane, window, cx);
11489            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11490            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11491            assert_eq!(
11492                pane_items_paths(&workspace.active_pane, cx),
11493                vec!["first.txt".to_string(), "third.txt".to_string()],
11494                "New pane should be ready to move one item out"
11495            );
11496
11497            workspace.move_item_to_pane_at_index(
11498                &MoveItemToPane {
11499                    destination: 3,
11500                    focus: true,
11501                    clone: false,
11502                },
11503                window,
11504                cx,
11505            );
11506            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11507            assert_eq!(
11508                pane_items_paths(&workspace.active_pane, cx),
11509                vec!["first.txt".to_string()],
11510                "After moving, one item should be left in the original pane"
11511            );
11512            assert_eq!(
11513                pane_items_paths(&workspace.panes[1], cx),
11514                vec!["second.txt".to_string()],
11515                "Previously created pane should be unchanged"
11516            );
11517            assert_eq!(
11518                pane_items_paths(&workspace.panes[2], cx),
11519                vec!["third.txt".to_string()],
11520                "New item should have been moved to the new pane"
11521            );
11522        });
11523    }
11524
11525    #[gpui::test]
11526    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11527        init_test(cx);
11528
11529        let fs = FakeFs::new(cx.executor());
11530        let project = Project::test(fs, [], cx).await;
11531        let (workspace, cx) =
11532            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11533
11534        let item_1 = cx.new(|cx| {
11535            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11536        });
11537        workspace.update_in(cx, |workspace, window, cx| {
11538            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11539            workspace.move_item_to_pane_in_direction(
11540                &MoveItemToPaneInDirection {
11541                    direction: SplitDirection::Right,
11542                    focus: true,
11543                    clone: true,
11544                },
11545                window,
11546                cx,
11547            );
11548            workspace.move_item_to_pane_at_index(
11549                &MoveItemToPane {
11550                    destination: 3,
11551                    focus: true,
11552                    clone: true,
11553                },
11554                window,
11555                cx,
11556            );
11557        });
11558        cx.run_until_parked();
11559
11560        workspace.update(cx, |workspace, cx| {
11561            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11562            for pane in workspace.panes() {
11563                assert_eq!(
11564                    pane_items_paths(pane, cx),
11565                    vec!["first.txt".to_string()],
11566                    "Single item exists in all panes"
11567                );
11568            }
11569        });
11570
11571        // verify that the active pane has been updated after waiting for the
11572        // pane focus event to fire and resolve
11573        workspace.read_with(cx, |workspace, _app| {
11574            assert_eq!(
11575                workspace.active_pane(),
11576                &workspace.panes[2],
11577                "The third pane should be the active one: {:?}",
11578                workspace.panes
11579            );
11580        })
11581    }
11582
11583    mod register_project_item_tests {
11584
11585        use super::*;
11586
11587        // View
11588        struct TestPngItemView {
11589            focus_handle: FocusHandle,
11590        }
11591        // Model
11592        struct TestPngItem {}
11593
11594        impl project::ProjectItem for TestPngItem {
11595            fn try_open(
11596                _project: &Entity<Project>,
11597                path: &ProjectPath,
11598                cx: &mut App,
11599            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11600                if path.path.extension().unwrap() == "png" {
11601                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11602                } else {
11603                    None
11604                }
11605            }
11606
11607            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11608                None
11609            }
11610
11611            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11612                None
11613            }
11614
11615            fn is_dirty(&self) -> bool {
11616                false
11617            }
11618        }
11619
11620        impl Item for TestPngItemView {
11621            type Event = ();
11622            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11623                "".into()
11624            }
11625        }
11626        impl EventEmitter<()> for TestPngItemView {}
11627        impl Focusable for TestPngItemView {
11628            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11629                self.focus_handle.clone()
11630            }
11631        }
11632
11633        impl Render for TestPngItemView {
11634            fn render(
11635                &mut self,
11636                _window: &mut Window,
11637                _cx: &mut Context<Self>,
11638            ) -> impl IntoElement {
11639                Empty
11640            }
11641        }
11642
11643        impl ProjectItem for TestPngItemView {
11644            type Item = TestPngItem;
11645
11646            fn for_project_item(
11647                _project: Entity<Project>,
11648                _pane: Option<&Pane>,
11649                _item: Entity<Self::Item>,
11650                _: &mut Window,
11651                cx: &mut Context<Self>,
11652            ) -> Self
11653            where
11654                Self: Sized,
11655            {
11656                Self {
11657                    focus_handle: cx.focus_handle(),
11658                }
11659            }
11660        }
11661
11662        // View
11663        struct TestIpynbItemView {
11664            focus_handle: FocusHandle,
11665        }
11666        // Model
11667        struct TestIpynbItem {}
11668
11669        impl project::ProjectItem for TestIpynbItem {
11670            fn try_open(
11671                _project: &Entity<Project>,
11672                path: &ProjectPath,
11673                cx: &mut App,
11674            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11675                if path.path.extension().unwrap() == "ipynb" {
11676                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11677                } else {
11678                    None
11679                }
11680            }
11681
11682            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11683                None
11684            }
11685
11686            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11687                None
11688            }
11689
11690            fn is_dirty(&self) -> bool {
11691                false
11692            }
11693        }
11694
11695        impl Item for TestIpynbItemView {
11696            type Event = ();
11697            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11698                "".into()
11699            }
11700        }
11701        impl EventEmitter<()> for TestIpynbItemView {}
11702        impl Focusable for TestIpynbItemView {
11703            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11704                self.focus_handle.clone()
11705            }
11706        }
11707
11708        impl Render for TestIpynbItemView {
11709            fn render(
11710                &mut self,
11711                _window: &mut Window,
11712                _cx: &mut Context<Self>,
11713            ) -> impl IntoElement {
11714                Empty
11715            }
11716        }
11717
11718        impl ProjectItem for TestIpynbItemView {
11719            type Item = TestIpynbItem;
11720
11721            fn for_project_item(
11722                _project: Entity<Project>,
11723                _pane: Option<&Pane>,
11724                _item: Entity<Self::Item>,
11725                _: &mut Window,
11726                cx: &mut Context<Self>,
11727            ) -> Self
11728            where
11729                Self: Sized,
11730            {
11731                Self {
11732                    focus_handle: cx.focus_handle(),
11733                }
11734            }
11735        }
11736
11737        struct TestAlternatePngItemView {
11738            focus_handle: FocusHandle,
11739        }
11740
11741        impl Item for TestAlternatePngItemView {
11742            type Event = ();
11743            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11744                "".into()
11745            }
11746        }
11747
11748        impl EventEmitter<()> for TestAlternatePngItemView {}
11749        impl Focusable for TestAlternatePngItemView {
11750            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11751                self.focus_handle.clone()
11752            }
11753        }
11754
11755        impl Render for TestAlternatePngItemView {
11756            fn render(
11757                &mut self,
11758                _window: &mut Window,
11759                _cx: &mut Context<Self>,
11760            ) -> impl IntoElement {
11761                Empty
11762            }
11763        }
11764
11765        impl ProjectItem for TestAlternatePngItemView {
11766            type Item = TestPngItem;
11767
11768            fn for_project_item(
11769                _project: Entity<Project>,
11770                _pane: Option<&Pane>,
11771                _item: Entity<Self::Item>,
11772                _: &mut Window,
11773                cx: &mut Context<Self>,
11774            ) -> Self
11775            where
11776                Self: Sized,
11777            {
11778                Self {
11779                    focus_handle: cx.focus_handle(),
11780                }
11781            }
11782        }
11783
11784        #[gpui::test]
11785        async fn test_register_project_item(cx: &mut TestAppContext) {
11786            init_test(cx);
11787
11788            cx.update(|cx| {
11789                register_project_item::<TestPngItemView>(cx);
11790                register_project_item::<TestIpynbItemView>(cx);
11791            });
11792
11793            let fs = FakeFs::new(cx.executor());
11794            fs.insert_tree(
11795                "/root1",
11796                json!({
11797                    "one.png": "BINARYDATAHERE",
11798                    "two.ipynb": "{ totally a notebook }",
11799                    "three.txt": "editing text, sure why not?"
11800                }),
11801            )
11802            .await;
11803
11804            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11805            let (workspace, cx) =
11806                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11807
11808            let worktree_id = project.update(cx, |project, cx| {
11809                project.worktrees(cx).next().unwrap().read(cx).id()
11810            });
11811
11812            let handle = workspace
11813                .update_in(cx, |workspace, window, cx| {
11814                    let project_path = (worktree_id, rel_path("one.png"));
11815                    workspace.open_path(project_path, None, true, window, cx)
11816                })
11817                .await
11818                .unwrap();
11819
11820            // Now we can check if the handle we got back errored or not
11821            assert_eq!(
11822                handle.to_any_view().entity_type(),
11823                TypeId::of::<TestPngItemView>()
11824            );
11825
11826            let handle = workspace
11827                .update_in(cx, |workspace, window, cx| {
11828                    let project_path = (worktree_id, rel_path("two.ipynb"));
11829                    workspace.open_path(project_path, None, true, window, cx)
11830                })
11831                .await
11832                .unwrap();
11833
11834            assert_eq!(
11835                handle.to_any_view().entity_type(),
11836                TypeId::of::<TestIpynbItemView>()
11837            );
11838
11839            let handle = workspace
11840                .update_in(cx, |workspace, window, cx| {
11841                    let project_path = (worktree_id, rel_path("three.txt"));
11842                    workspace.open_path(project_path, None, true, window, cx)
11843                })
11844                .await;
11845            assert!(handle.is_err());
11846        }
11847
11848        #[gpui::test]
11849        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11850            init_test(cx);
11851
11852            cx.update(|cx| {
11853                register_project_item::<TestPngItemView>(cx);
11854                register_project_item::<TestAlternatePngItemView>(cx);
11855            });
11856
11857            let fs = FakeFs::new(cx.executor());
11858            fs.insert_tree(
11859                "/root1",
11860                json!({
11861                    "one.png": "BINARYDATAHERE",
11862                    "two.ipynb": "{ totally a notebook }",
11863                    "three.txt": "editing text, sure why not?"
11864                }),
11865            )
11866            .await;
11867            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11868            let (workspace, cx) =
11869                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11870            let worktree_id = project.update(cx, |project, cx| {
11871                project.worktrees(cx).next().unwrap().read(cx).id()
11872            });
11873
11874            let handle = workspace
11875                .update_in(cx, |workspace, window, cx| {
11876                    let project_path = (worktree_id, rel_path("one.png"));
11877                    workspace.open_path(project_path, None, true, window, cx)
11878                })
11879                .await
11880                .unwrap();
11881
11882            // This _must_ be the second item registered
11883            assert_eq!(
11884                handle.to_any_view().entity_type(),
11885                TypeId::of::<TestAlternatePngItemView>()
11886            );
11887
11888            let handle = workspace
11889                .update_in(cx, |workspace, window, cx| {
11890                    let project_path = (worktree_id, rel_path("three.txt"));
11891                    workspace.open_path(project_path, None, true, window, cx)
11892                })
11893                .await;
11894            assert!(handle.is_err());
11895        }
11896    }
11897
11898    #[gpui::test]
11899    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11900        init_test(cx);
11901
11902        let fs = FakeFs::new(cx.executor());
11903        let project = Project::test(fs, [], cx).await;
11904        let (workspace, _cx) =
11905            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11906
11907        // Test with status bar shown (default)
11908        workspace.read_with(cx, |workspace, cx| {
11909            let visible = workspace.status_bar_visible(cx);
11910            assert!(visible, "Status bar should be visible by default");
11911        });
11912
11913        // Test with status bar hidden
11914        cx.update_global(|store: &mut SettingsStore, cx| {
11915            store.update_user_settings(cx, |settings| {
11916                settings.status_bar.get_or_insert_default().show = Some(false);
11917            });
11918        });
11919
11920        workspace.read_with(cx, |workspace, cx| {
11921            let visible = workspace.status_bar_visible(cx);
11922            assert!(!visible, "Status bar should be hidden when show is false");
11923        });
11924
11925        // Test with status bar shown explicitly
11926        cx.update_global(|store: &mut SettingsStore, cx| {
11927            store.update_user_settings(cx, |settings| {
11928                settings.status_bar.get_or_insert_default().show = Some(true);
11929            });
11930        });
11931
11932        workspace.read_with(cx, |workspace, cx| {
11933            let visible = workspace.status_bar_visible(cx);
11934            assert!(visible, "Status bar should be visible when show is true");
11935        });
11936    }
11937
11938    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11939        pane.read(cx)
11940            .items()
11941            .flat_map(|item| {
11942                item.project_paths(cx)
11943                    .into_iter()
11944                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11945            })
11946            .collect()
11947    }
11948
11949    pub fn init_test(cx: &mut TestAppContext) {
11950        cx.update(|cx| {
11951            let settings_store = SettingsStore::test(cx);
11952            cx.set_global(settings_store);
11953            theme::init(theme::LoadThemes::JustBase, cx);
11954        });
11955    }
11956
11957    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11958        let item = TestProjectItem::new(id, path, cx);
11959        item.update(cx, |item, _| {
11960            item.is_dirty = true;
11961        });
11962        item
11963    }
11964}