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