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(true, 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(*focus_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(false, 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(true, 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(
 4723        &mut self,
 4724        focus_changed: bool,
 4725        window: &mut Window,
 4726        cx: &mut Context<Self>,
 4727    ) {
 4728        cx.emit(Event::ActiveItemChanged);
 4729        let active_entry = self.active_project_path(cx);
 4730        self.project.update(cx, |project, cx| {
 4731            project.set_active_path(active_entry.clone(), cx)
 4732        });
 4733
 4734        if focus_changed && let Some(project_path) = &active_entry {
 4735            let git_store_entity = self.project.read(cx).git_store().clone();
 4736            git_store_entity.update(cx, |git_store, cx| {
 4737                git_store.set_active_repo_for_path(project_path, cx);
 4738            });
 4739        }
 4740
 4741        self.update_window_title(window, cx);
 4742    }
 4743
 4744    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4745        let project = self.project().read(cx);
 4746        let mut title = String::new();
 4747
 4748        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4749            let name = {
 4750                let settings_location = SettingsLocation {
 4751                    worktree_id: worktree.read(cx).id(),
 4752                    path: RelPath::empty(),
 4753                };
 4754
 4755                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4756                match &settings.project_name {
 4757                    Some(name) => name.as_str(),
 4758                    None => worktree.read(cx).root_name_str(),
 4759                }
 4760            };
 4761            if i > 0 {
 4762                title.push_str(", ");
 4763            }
 4764            title.push_str(name);
 4765        }
 4766
 4767        if title.is_empty() {
 4768            title = "empty project".to_string();
 4769        }
 4770
 4771        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4772            let filename = path.path.file_name().or_else(|| {
 4773                Some(
 4774                    project
 4775                        .worktree_for_id(path.worktree_id, cx)?
 4776                        .read(cx)
 4777                        .root_name_str(),
 4778                )
 4779            });
 4780
 4781            if let Some(filename) = filename {
 4782                title.push_str("");
 4783                title.push_str(filename.as_ref());
 4784            }
 4785        }
 4786
 4787        if project.is_via_collab() {
 4788            title.push_str("");
 4789        } else if project.is_shared() {
 4790            title.push_str("");
 4791        }
 4792
 4793        if let Some(last_title) = self.last_window_title.as_ref()
 4794            && &title == last_title
 4795        {
 4796            return;
 4797        }
 4798        window.set_window_title(&title);
 4799        SystemWindowTabController::update_tab_title(
 4800            cx,
 4801            window.window_handle().window_id(),
 4802            SharedString::from(&title),
 4803        );
 4804        self.last_window_title = Some(title);
 4805    }
 4806
 4807    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4808        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4809        if is_edited != self.window_edited {
 4810            self.window_edited = is_edited;
 4811            window.set_window_edited(self.window_edited)
 4812        }
 4813    }
 4814
 4815    fn update_item_dirty_state(
 4816        &mut self,
 4817        item: &dyn ItemHandle,
 4818        window: &mut Window,
 4819        cx: &mut App,
 4820    ) {
 4821        let is_dirty = item.is_dirty(cx);
 4822        let item_id = item.item_id();
 4823        let was_dirty = self.dirty_items.contains_key(&item_id);
 4824        if is_dirty == was_dirty {
 4825            return;
 4826        }
 4827        if was_dirty {
 4828            self.dirty_items.remove(&item_id);
 4829            self.update_window_edited(window, cx);
 4830            return;
 4831        }
 4832        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4833            let s = item.on_release(
 4834                cx,
 4835                Box::new(move |cx| {
 4836                    window_handle
 4837                        .update(cx, |this, window, cx| {
 4838                            this.dirty_items.remove(&item_id);
 4839                            this.update_window_edited(window, cx)
 4840                        })
 4841                        .ok();
 4842                }),
 4843            );
 4844            self.dirty_items.insert(item_id, s);
 4845            self.update_window_edited(window, cx);
 4846        }
 4847    }
 4848
 4849    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4850        if self.notifications.is_empty() {
 4851            None
 4852        } else {
 4853            Some(
 4854                div()
 4855                    .absolute()
 4856                    .right_3()
 4857                    .bottom_3()
 4858                    .w_112()
 4859                    .h_full()
 4860                    .flex()
 4861                    .flex_col()
 4862                    .justify_end()
 4863                    .gap_2()
 4864                    .children(
 4865                        self.notifications
 4866                            .iter()
 4867                            .map(|(_, notification)| notification.clone().into_any()),
 4868                    ),
 4869            )
 4870        }
 4871    }
 4872
 4873    // RPC handlers
 4874
 4875    fn active_view_for_follower(
 4876        &self,
 4877        follower_project_id: Option<u64>,
 4878        window: &mut Window,
 4879        cx: &mut Context<Self>,
 4880    ) -> Option<proto::View> {
 4881        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4882        let item = item?;
 4883        let leader_id = self
 4884            .pane_for(&*item)
 4885            .and_then(|pane| self.leader_for_pane(&pane));
 4886        let leader_peer_id = match leader_id {
 4887            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4888            Some(CollaboratorId::Agent) | None => None,
 4889        };
 4890
 4891        let item_handle = item.to_followable_item_handle(cx)?;
 4892        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4893        let variant = item_handle.to_state_proto(window, cx)?;
 4894
 4895        if item_handle.is_project_item(window, cx)
 4896            && (follower_project_id.is_none()
 4897                || follower_project_id != self.project.read(cx).remote_id())
 4898        {
 4899            return None;
 4900        }
 4901
 4902        Some(proto::View {
 4903            id: id.to_proto(),
 4904            leader_id: leader_peer_id,
 4905            variant: Some(variant),
 4906            panel_id: panel_id.map(|id| id as i32),
 4907        })
 4908    }
 4909
 4910    fn handle_follow(
 4911        &mut self,
 4912        follower_project_id: Option<u64>,
 4913        window: &mut Window,
 4914        cx: &mut Context<Self>,
 4915    ) -> proto::FollowResponse {
 4916        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4917
 4918        cx.notify();
 4919        proto::FollowResponse {
 4920            // TODO: Remove after version 0.145.x stabilizes.
 4921            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4922            views: active_view.iter().cloned().collect(),
 4923            active_view,
 4924        }
 4925    }
 4926
 4927    fn handle_update_followers(
 4928        &mut self,
 4929        leader_id: PeerId,
 4930        message: proto::UpdateFollowers,
 4931        _window: &mut Window,
 4932        _cx: &mut Context<Self>,
 4933    ) {
 4934        self.leader_updates_tx
 4935            .unbounded_send((leader_id, message))
 4936            .ok();
 4937    }
 4938
 4939    async fn process_leader_update(
 4940        this: &WeakEntity<Self>,
 4941        leader_id: PeerId,
 4942        update: proto::UpdateFollowers,
 4943        cx: &mut AsyncWindowContext,
 4944    ) -> Result<()> {
 4945        match update.variant.context("invalid update")? {
 4946            proto::update_followers::Variant::CreateView(view) => {
 4947                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4948                let should_add_view = this.update(cx, |this, _| {
 4949                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4950                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4951                    } else {
 4952                        anyhow::Ok(false)
 4953                    }
 4954                })??;
 4955
 4956                if should_add_view {
 4957                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4958                }
 4959            }
 4960            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4961                let should_add_view = this.update(cx, |this, _| {
 4962                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4963                        state.active_view_id = update_active_view
 4964                            .view
 4965                            .as_ref()
 4966                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4967
 4968                        if state.active_view_id.is_some_and(|view_id| {
 4969                            !state.items_by_leader_view_id.contains_key(&view_id)
 4970                        }) {
 4971                            anyhow::Ok(true)
 4972                        } else {
 4973                            anyhow::Ok(false)
 4974                        }
 4975                    } else {
 4976                        anyhow::Ok(false)
 4977                    }
 4978                })??;
 4979
 4980                if should_add_view && let Some(view) = update_active_view.view {
 4981                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4982                }
 4983            }
 4984            proto::update_followers::Variant::UpdateView(update_view) => {
 4985                let variant = update_view.variant.context("missing update view variant")?;
 4986                let id = update_view.id.context("missing update view id")?;
 4987                let mut tasks = Vec::new();
 4988                this.update_in(cx, |this, window, cx| {
 4989                    let project = this.project.clone();
 4990                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4991                        let view_id = ViewId::from_proto(id.clone())?;
 4992                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4993                            tasks.push(item.view.apply_update_proto(
 4994                                &project,
 4995                                variant.clone(),
 4996                                window,
 4997                                cx,
 4998                            ));
 4999                        }
 5000                    }
 5001                    anyhow::Ok(())
 5002                })??;
 5003                try_join_all(tasks).await.log_err();
 5004            }
 5005        }
 5006        this.update_in(cx, |this, window, cx| {
 5007            this.leader_updated(leader_id, window, cx)
 5008        })?;
 5009        Ok(())
 5010    }
 5011
 5012    async fn add_view_from_leader(
 5013        this: WeakEntity<Self>,
 5014        leader_id: PeerId,
 5015        view: &proto::View,
 5016        cx: &mut AsyncWindowContext,
 5017    ) -> Result<()> {
 5018        let this = this.upgrade().context("workspace dropped")?;
 5019
 5020        let Some(id) = view.id.clone() else {
 5021            anyhow::bail!("no id for view");
 5022        };
 5023        let id = ViewId::from_proto(id)?;
 5024        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5025
 5026        let pane = this.update(cx, |this, _cx| {
 5027            let state = this
 5028                .follower_states
 5029                .get(&leader_id.into())
 5030                .context("stopped following")?;
 5031            anyhow::Ok(state.pane().clone())
 5032        })??;
 5033        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5034            let client = this.read(cx).client().clone();
 5035            pane.items().find_map(|item| {
 5036                let item = item.to_followable_item_handle(cx)?;
 5037                if item.remote_id(&client, window, cx) == Some(id) {
 5038                    Some(item)
 5039                } else {
 5040                    None
 5041                }
 5042            })
 5043        })?;
 5044        let item = if let Some(existing_item) = existing_item {
 5045            existing_item
 5046        } else {
 5047            let variant = view.variant.clone();
 5048            anyhow::ensure!(variant.is_some(), "missing view variant");
 5049
 5050            let task = cx.update(|window, cx| {
 5051                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5052            })?;
 5053
 5054            let Some(task) = task else {
 5055                anyhow::bail!(
 5056                    "failed to construct view from leader (maybe from a different version of zed?)"
 5057                );
 5058            };
 5059
 5060            let mut new_item = task.await?;
 5061            pane.update_in(cx, |pane, window, cx| {
 5062                let mut item_to_remove = None;
 5063                for (ix, item) in pane.items().enumerate() {
 5064                    if let Some(item) = item.to_followable_item_handle(cx) {
 5065                        match new_item.dedup(item.as_ref(), window, cx) {
 5066                            Some(item::Dedup::KeepExisting) => {
 5067                                new_item =
 5068                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5069                                break;
 5070                            }
 5071                            Some(item::Dedup::ReplaceExisting) => {
 5072                                item_to_remove = Some((ix, item.item_id()));
 5073                                break;
 5074                            }
 5075                            None => {}
 5076                        }
 5077                    }
 5078                }
 5079
 5080                if let Some((ix, id)) = item_to_remove {
 5081                    pane.remove_item(id, false, false, window, cx);
 5082                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5083                }
 5084            })?;
 5085
 5086            new_item
 5087        };
 5088
 5089        this.update_in(cx, |this, window, cx| {
 5090            let state = this.follower_states.get_mut(&leader_id.into())?;
 5091            item.set_leader_id(Some(leader_id.into()), window, cx);
 5092            state.items_by_leader_view_id.insert(
 5093                id,
 5094                FollowerView {
 5095                    view: item,
 5096                    location: panel_id,
 5097                },
 5098            );
 5099
 5100            Some(())
 5101        })?;
 5102
 5103        Ok(())
 5104    }
 5105
 5106    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5107        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5108            return;
 5109        };
 5110
 5111        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5112            let buffer_entity_id = agent_location.buffer.entity_id();
 5113            let view_id = ViewId {
 5114                creator: CollaboratorId::Agent,
 5115                id: buffer_entity_id.as_u64(),
 5116            };
 5117            follower_state.active_view_id = Some(view_id);
 5118
 5119            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5120                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5121                hash_map::Entry::Vacant(entry) => {
 5122                    let existing_view =
 5123                        follower_state
 5124                            .center_pane
 5125                            .read(cx)
 5126                            .items()
 5127                            .find_map(|item| {
 5128                                let item = item.to_followable_item_handle(cx)?;
 5129                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5130                                    && item.project_item_model_ids(cx).as_slice()
 5131                                        == [buffer_entity_id]
 5132                                {
 5133                                    Some(item)
 5134                                } else {
 5135                                    None
 5136                                }
 5137                            });
 5138                    let view = existing_view.or_else(|| {
 5139                        agent_location.buffer.upgrade().and_then(|buffer| {
 5140                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5141                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5142                            })?
 5143                            .to_followable_item_handle(cx)
 5144                        })
 5145                    });
 5146
 5147                    view.map(|view| {
 5148                        entry.insert(FollowerView {
 5149                            view,
 5150                            location: None,
 5151                        })
 5152                    })
 5153                }
 5154            };
 5155
 5156            if let Some(item) = item {
 5157                item.view
 5158                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5159                item.view
 5160                    .update_agent_location(agent_location.position, window, cx);
 5161            }
 5162        } else {
 5163            follower_state.active_view_id = None;
 5164        }
 5165
 5166        self.leader_updated(CollaboratorId::Agent, window, cx);
 5167    }
 5168
 5169    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5170        let mut is_project_item = true;
 5171        let mut update = proto::UpdateActiveView::default();
 5172        if window.is_window_active() {
 5173            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5174
 5175            if let Some(item) = active_item
 5176                && item.item_focus_handle(cx).contains_focused(window, cx)
 5177            {
 5178                let leader_id = self
 5179                    .pane_for(&*item)
 5180                    .and_then(|pane| self.leader_for_pane(&pane));
 5181                let leader_peer_id = match leader_id {
 5182                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5183                    Some(CollaboratorId::Agent) | None => None,
 5184                };
 5185
 5186                if let Some(item) = item.to_followable_item_handle(cx) {
 5187                    let id = item
 5188                        .remote_id(&self.app_state.client, window, cx)
 5189                        .map(|id| id.to_proto());
 5190
 5191                    if let Some(id) = id
 5192                        && let Some(variant) = item.to_state_proto(window, cx)
 5193                    {
 5194                        let view = Some(proto::View {
 5195                            id: id.clone(),
 5196                            leader_id: leader_peer_id,
 5197                            variant: Some(variant),
 5198                            panel_id: panel_id.map(|id| id as i32),
 5199                        });
 5200
 5201                        is_project_item = item.is_project_item(window, cx);
 5202                        update = proto::UpdateActiveView {
 5203                            view,
 5204                            // TODO: Remove after version 0.145.x stabilizes.
 5205                            id,
 5206                            leader_id: leader_peer_id,
 5207                        };
 5208                    };
 5209                }
 5210            }
 5211        }
 5212
 5213        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5214        if active_view_id != self.last_active_view_id.as_ref() {
 5215            self.last_active_view_id = active_view_id.cloned();
 5216            self.update_followers(
 5217                is_project_item,
 5218                proto::update_followers::Variant::UpdateActiveView(update),
 5219                window,
 5220                cx,
 5221            );
 5222        }
 5223    }
 5224
 5225    fn active_item_for_followers(
 5226        &self,
 5227        window: &mut Window,
 5228        cx: &mut App,
 5229    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5230        let mut active_item = None;
 5231        let mut panel_id = None;
 5232        for dock in self.all_docks() {
 5233            if dock.focus_handle(cx).contains_focused(window, cx)
 5234                && let Some(panel) = dock.read(cx).active_panel()
 5235                && let Some(pane) = panel.pane(cx)
 5236                && let Some(item) = pane.read(cx).active_item()
 5237            {
 5238                active_item = Some(item);
 5239                panel_id = panel.remote_id();
 5240                break;
 5241            }
 5242        }
 5243
 5244        if active_item.is_none() {
 5245            active_item = self.active_pane().read(cx).active_item();
 5246        }
 5247        (active_item, panel_id)
 5248    }
 5249
 5250    fn update_followers(
 5251        &self,
 5252        project_only: bool,
 5253        update: proto::update_followers::Variant,
 5254        _: &mut Window,
 5255        cx: &mut App,
 5256    ) -> Option<()> {
 5257        // If this update only applies to for followers in the current project,
 5258        // then skip it unless this project is shared. If it applies to all
 5259        // followers, regardless of project, then set `project_id` to none,
 5260        // indicating that it goes to all followers.
 5261        let project_id = if project_only {
 5262            Some(self.project.read(cx).remote_id()?)
 5263        } else {
 5264            None
 5265        };
 5266        self.app_state().workspace_store.update(cx, |store, cx| {
 5267            store.update_followers(project_id, update, cx)
 5268        })
 5269    }
 5270
 5271    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5272        self.follower_states.iter().find_map(|(leader_id, state)| {
 5273            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5274                Some(*leader_id)
 5275            } else {
 5276                None
 5277            }
 5278        })
 5279    }
 5280
 5281    fn leader_updated(
 5282        &mut self,
 5283        leader_id: impl Into<CollaboratorId>,
 5284        window: &mut Window,
 5285        cx: &mut Context<Self>,
 5286    ) -> Option<Box<dyn ItemHandle>> {
 5287        cx.notify();
 5288
 5289        let leader_id = leader_id.into();
 5290        let (panel_id, item) = match leader_id {
 5291            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5292            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5293        };
 5294
 5295        let state = self.follower_states.get(&leader_id)?;
 5296        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5297        let pane;
 5298        if let Some(panel_id) = panel_id {
 5299            pane = self
 5300                .activate_panel_for_proto_id(panel_id, window, cx)?
 5301                .pane(cx)?;
 5302            let state = self.follower_states.get_mut(&leader_id)?;
 5303            state.dock_pane = Some(pane.clone());
 5304        } else {
 5305            pane = state.center_pane.clone();
 5306            let state = self.follower_states.get_mut(&leader_id)?;
 5307            if let Some(dock_pane) = state.dock_pane.take() {
 5308                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5309            }
 5310        }
 5311
 5312        pane.update(cx, |pane, cx| {
 5313            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5314            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5315                pane.activate_item(index, false, false, window, cx);
 5316            } else {
 5317                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5318            }
 5319
 5320            if focus_active_item {
 5321                pane.focus_active_item(window, cx)
 5322            }
 5323        });
 5324
 5325        Some(item)
 5326    }
 5327
 5328    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5329        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5330        let active_view_id = state.active_view_id?;
 5331        Some(
 5332            state
 5333                .items_by_leader_view_id
 5334                .get(&active_view_id)?
 5335                .view
 5336                .boxed_clone(),
 5337        )
 5338    }
 5339
 5340    fn active_item_for_peer(
 5341        &self,
 5342        peer_id: PeerId,
 5343        window: &mut Window,
 5344        cx: &mut Context<Self>,
 5345    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5346        let call = self.active_call()?;
 5347        let room = call.read(cx).room()?.read(cx);
 5348        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5349        let leader_in_this_app;
 5350        let leader_in_this_project;
 5351        match participant.location {
 5352            call::ParticipantLocation::SharedProject { project_id } => {
 5353                leader_in_this_app = true;
 5354                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5355            }
 5356            call::ParticipantLocation::UnsharedProject => {
 5357                leader_in_this_app = true;
 5358                leader_in_this_project = false;
 5359            }
 5360            call::ParticipantLocation::External => {
 5361                leader_in_this_app = false;
 5362                leader_in_this_project = false;
 5363            }
 5364        };
 5365        let state = self.follower_states.get(&peer_id.into())?;
 5366        let mut item_to_activate = None;
 5367        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5368            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5369                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5370            {
 5371                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5372            }
 5373        } else if let Some(shared_screen) =
 5374            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5375        {
 5376            item_to_activate = Some((None, Box::new(shared_screen)));
 5377        }
 5378        item_to_activate
 5379    }
 5380
 5381    fn shared_screen_for_peer(
 5382        &self,
 5383        peer_id: PeerId,
 5384        pane: &Entity<Pane>,
 5385        window: &mut Window,
 5386        cx: &mut App,
 5387    ) -> Option<Entity<SharedScreen>> {
 5388        let call = self.active_call()?;
 5389        let room = call.read(cx).room()?.clone();
 5390        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5391        let track = participant.video_tracks.values().next()?.clone();
 5392        let user = participant.user.clone();
 5393
 5394        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5395            if item.read(cx).peer_id == peer_id {
 5396                return Some(item);
 5397            }
 5398        }
 5399
 5400        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5401    }
 5402
 5403    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5404        if window.is_window_active() {
 5405            self.update_active_view_for_followers(window, cx);
 5406
 5407            if let Some(database_id) = self.database_id {
 5408                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5409                    .detach();
 5410            }
 5411        } else {
 5412            for pane in &self.panes {
 5413                pane.update(cx, |pane, cx| {
 5414                    if let Some(item) = pane.active_item() {
 5415                        item.workspace_deactivated(window, cx);
 5416                    }
 5417                    for item in pane.items() {
 5418                        if matches!(
 5419                            item.workspace_settings(cx).autosave,
 5420                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5421                        ) {
 5422                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5423                                .detach_and_log_err(cx);
 5424                        }
 5425                    }
 5426                });
 5427            }
 5428        }
 5429    }
 5430
 5431    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5432        self.active_call.as_ref().map(|(call, _)| call)
 5433    }
 5434
 5435    fn on_active_call_event(
 5436        &mut self,
 5437        _: &Entity<ActiveCall>,
 5438        event: &call::room::Event,
 5439        window: &mut Window,
 5440        cx: &mut Context<Self>,
 5441    ) {
 5442        match event {
 5443            call::room::Event::ParticipantLocationChanged { participant_id }
 5444            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5445                self.leader_updated(participant_id, window, cx);
 5446            }
 5447            _ => {}
 5448        }
 5449    }
 5450
 5451    pub fn database_id(&self) -> Option<WorkspaceId> {
 5452        self.database_id
 5453    }
 5454
 5455    pub fn session_id(&self) -> Option<String> {
 5456        self.session_id.clone()
 5457    }
 5458
 5459    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5460        let project = self.project().read(cx);
 5461        project
 5462            .visible_worktrees(cx)
 5463            .map(|worktree| worktree.read(cx).abs_path())
 5464            .collect::<Vec<_>>()
 5465    }
 5466
 5467    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5468        match member {
 5469            Member::Axis(PaneAxis { members, .. }) => {
 5470                for child in members.iter() {
 5471                    self.remove_panes(child.clone(), window, cx)
 5472                }
 5473            }
 5474            Member::Pane(pane) => {
 5475                self.force_remove_pane(&pane, &None, window, cx);
 5476            }
 5477        }
 5478    }
 5479
 5480    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5481        self.session_id.take();
 5482        self.serialize_workspace_internal(window, cx)
 5483    }
 5484
 5485    fn force_remove_pane(
 5486        &mut self,
 5487        pane: &Entity<Pane>,
 5488        focus_on: &Option<Entity<Pane>>,
 5489        window: &mut Window,
 5490        cx: &mut Context<Workspace>,
 5491    ) {
 5492        self.panes.retain(|p| p != pane);
 5493        if let Some(focus_on) = focus_on {
 5494            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5495        } else if self.active_pane() == pane {
 5496            self.panes
 5497                .last()
 5498                .unwrap()
 5499                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5500        }
 5501        if self.last_active_center_pane == Some(pane.downgrade()) {
 5502            self.last_active_center_pane = None;
 5503        }
 5504        cx.notify();
 5505    }
 5506
 5507    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5508        if self._schedule_serialize_workspace.is_none() {
 5509            self._schedule_serialize_workspace =
 5510                Some(cx.spawn_in(window, async move |this, cx| {
 5511                    cx.background_executor()
 5512                        .timer(SERIALIZATION_THROTTLE_TIME)
 5513                        .await;
 5514                    this.update_in(cx, |this, window, cx| {
 5515                        this.serialize_workspace_internal(window, cx).detach();
 5516                        this._schedule_serialize_workspace.take();
 5517                    })
 5518                    .log_err();
 5519                }));
 5520        }
 5521    }
 5522
 5523    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5524        let Some(database_id) = self.database_id() else {
 5525            return Task::ready(());
 5526        };
 5527
 5528        fn serialize_pane_handle(
 5529            pane_handle: &Entity<Pane>,
 5530            window: &mut Window,
 5531            cx: &mut App,
 5532        ) -> SerializedPane {
 5533            let (items, active, pinned_count) = {
 5534                let pane = pane_handle.read(cx);
 5535                let active_item_id = pane.active_item().map(|item| item.item_id());
 5536                (
 5537                    pane.items()
 5538                        .filter_map(|handle| {
 5539                            let handle = handle.to_serializable_item_handle(cx)?;
 5540
 5541                            Some(SerializedItem {
 5542                                kind: Arc::from(handle.serialized_item_kind()),
 5543                                item_id: handle.item_id().as_u64(),
 5544                                active: Some(handle.item_id()) == active_item_id,
 5545                                preview: pane.is_active_preview_item(handle.item_id()),
 5546                            })
 5547                        })
 5548                        .collect::<Vec<_>>(),
 5549                    pane.has_focus(window, cx),
 5550                    pane.pinned_count(),
 5551                )
 5552            };
 5553
 5554            SerializedPane::new(items, active, pinned_count)
 5555        }
 5556
 5557        fn build_serialized_pane_group(
 5558            pane_group: &Member,
 5559            window: &mut Window,
 5560            cx: &mut App,
 5561        ) -> SerializedPaneGroup {
 5562            match pane_group {
 5563                Member::Axis(PaneAxis {
 5564                    axis,
 5565                    members,
 5566                    flexes,
 5567                    bounding_boxes: _,
 5568                }) => SerializedPaneGroup::Group {
 5569                    axis: SerializedAxis(*axis),
 5570                    children: members
 5571                        .iter()
 5572                        .map(|member| build_serialized_pane_group(member, window, cx))
 5573                        .collect::<Vec<_>>(),
 5574                    flexes: Some(flexes.lock().clone()),
 5575                },
 5576                Member::Pane(pane_handle) => {
 5577                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5578                }
 5579            }
 5580        }
 5581
 5582        fn build_serialized_docks(
 5583            this: &Workspace,
 5584            window: &mut Window,
 5585            cx: &mut App,
 5586        ) -> DockStructure {
 5587            let left_dock = this.left_dock.read(cx);
 5588            let left_visible = left_dock.is_open();
 5589            let left_active_panel = left_dock
 5590                .active_panel()
 5591                .map(|panel| panel.persistent_name().to_string());
 5592            let left_dock_zoom = left_dock
 5593                .active_panel()
 5594                .map(|panel| panel.is_zoomed(window, cx))
 5595                .unwrap_or(false);
 5596
 5597            let right_dock = this.right_dock.read(cx);
 5598            let right_visible = right_dock.is_open();
 5599            let right_active_panel = right_dock
 5600                .active_panel()
 5601                .map(|panel| panel.persistent_name().to_string());
 5602            let right_dock_zoom = right_dock
 5603                .active_panel()
 5604                .map(|panel| panel.is_zoomed(window, cx))
 5605                .unwrap_or(false);
 5606
 5607            let bottom_dock = this.bottom_dock.read(cx);
 5608            let bottom_visible = bottom_dock.is_open();
 5609            let bottom_active_panel = bottom_dock
 5610                .active_panel()
 5611                .map(|panel| panel.persistent_name().to_string());
 5612            let bottom_dock_zoom = bottom_dock
 5613                .active_panel()
 5614                .map(|panel| panel.is_zoomed(window, cx))
 5615                .unwrap_or(false);
 5616
 5617            DockStructure {
 5618                left: DockData {
 5619                    visible: left_visible,
 5620                    active_panel: left_active_panel,
 5621                    zoom: left_dock_zoom,
 5622                },
 5623                right: DockData {
 5624                    visible: right_visible,
 5625                    active_panel: right_active_panel,
 5626                    zoom: right_dock_zoom,
 5627                },
 5628                bottom: DockData {
 5629                    visible: bottom_visible,
 5630                    active_panel: bottom_active_panel,
 5631                    zoom: bottom_dock_zoom,
 5632                },
 5633            }
 5634        }
 5635
 5636        match self.serialize_workspace_location(cx) {
 5637            WorkspaceLocation::Location(location, paths) => {
 5638                let breakpoints = self.project.update(cx, |project, cx| {
 5639                    project
 5640                        .breakpoint_store()
 5641                        .read(cx)
 5642                        .all_source_breakpoints(cx)
 5643                });
 5644                let user_toolchains = self
 5645                    .project
 5646                    .read(cx)
 5647                    .user_toolchains(cx)
 5648                    .unwrap_or_default();
 5649
 5650                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5651                let docks = build_serialized_docks(self, window, cx);
 5652                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5653
 5654                let serialized_workspace = SerializedWorkspace {
 5655                    id: database_id,
 5656                    location,
 5657                    paths,
 5658                    center_group,
 5659                    window_bounds,
 5660                    display: Default::default(),
 5661                    docks,
 5662                    centered_layout: self.centered_layout,
 5663                    session_id: self.session_id.clone(),
 5664                    breakpoints,
 5665                    window_id: Some(window.window_handle().window_id().as_u64()),
 5666                    user_toolchains,
 5667                };
 5668
 5669                window.spawn(cx, async move |_| {
 5670                    persistence::DB.save_workspace(serialized_workspace).await;
 5671                })
 5672            }
 5673            WorkspaceLocation::DetachFromSession => {
 5674                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5675                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5676                window.spawn(cx, async move |_| {
 5677                    persistence::DB
 5678                        .set_window_open_status(
 5679                            database_id,
 5680                            window_bounds,
 5681                            display.unwrap_or_default(),
 5682                        )
 5683                        .await
 5684                        .log_err();
 5685                    persistence::DB
 5686                        .set_session_id(database_id, None)
 5687                        .await
 5688                        .log_err();
 5689                })
 5690            }
 5691            WorkspaceLocation::None => Task::ready(()),
 5692        }
 5693    }
 5694
 5695    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5696        let paths = PathList::new(&self.root_paths(cx));
 5697        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5698            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5699        } else if self.project.read(cx).is_local() {
 5700            if !paths.is_empty() {
 5701                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5702            } else {
 5703                WorkspaceLocation::DetachFromSession
 5704            }
 5705        } else {
 5706            WorkspaceLocation::None
 5707        }
 5708    }
 5709
 5710    fn update_history(&self, cx: &mut App) {
 5711        let Some(id) = self.database_id() else {
 5712            return;
 5713        };
 5714        if !self.project.read(cx).is_local() {
 5715            return;
 5716        }
 5717        if let Some(manager) = HistoryManager::global(cx) {
 5718            let paths = PathList::new(&self.root_paths(cx));
 5719            manager.update(cx, |this, cx| {
 5720                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5721            });
 5722        }
 5723    }
 5724
 5725    async fn serialize_items(
 5726        this: &WeakEntity<Self>,
 5727        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5728        cx: &mut AsyncWindowContext,
 5729    ) -> Result<()> {
 5730        const CHUNK_SIZE: usize = 200;
 5731
 5732        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5733
 5734        while let Some(items_received) = serializable_items.next().await {
 5735            let unique_items =
 5736                items_received
 5737                    .into_iter()
 5738                    .fold(HashMap::default(), |mut acc, item| {
 5739                        acc.entry(item.item_id()).or_insert(item);
 5740                        acc
 5741                    });
 5742
 5743            // We use into_iter() here so that the references to the items are moved into
 5744            // the tasks and not kept alive while we're sleeping.
 5745            for (_, item) in unique_items.into_iter() {
 5746                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5747                    item.serialize(workspace, false, window, cx)
 5748                }) {
 5749                    cx.background_spawn(async move { task.await.log_err() })
 5750                        .detach();
 5751                }
 5752            }
 5753
 5754            cx.background_executor()
 5755                .timer(SERIALIZATION_THROTTLE_TIME)
 5756                .await;
 5757        }
 5758
 5759        Ok(())
 5760    }
 5761
 5762    pub(crate) fn enqueue_item_serialization(
 5763        &mut self,
 5764        item: Box<dyn SerializableItemHandle>,
 5765    ) -> Result<()> {
 5766        self.serializable_items_tx
 5767            .unbounded_send(item)
 5768            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5769    }
 5770
 5771    pub(crate) fn load_workspace(
 5772        serialized_workspace: SerializedWorkspace,
 5773        paths_to_open: Vec<Option<ProjectPath>>,
 5774        window: &mut Window,
 5775        cx: &mut Context<Workspace>,
 5776    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5777        cx.spawn_in(window, async move |workspace, cx| {
 5778            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5779
 5780            let mut center_group = None;
 5781            let mut center_items = None;
 5782
 5783            // Traverse the splits tree and add to things
 5784            if let Some((group, active_pane, items)) = serialized_workspace
 5785                .center_group
 5786                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5787                .await
 5788            {
 5789                center_items = Some(items);
 5790                center_group = Some((group, active_pane))
 5791            }
 5792
 5793            let mut items_by_project_path = HashMap::default();
 5794            let mut item_ids_by_kind = HashMap::default();
 5795            let mut all_deserialized_items = Vec::default();
 5796            cx.update(|_, cx| {
 5797                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5798                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5799                        item_ids_by_kind
 5800                            .entry(serializable_item_handle.serialized_item_kind())
 5801                            .or_insert(Vec::new())
 5802                            .push(item.item_id().as_u64() as ItemId);
 5803                    }
 5804
 5805                    if let Some(project_path) = item.project_path(cx) {
 5806                        items_by_project_path.insert(project_path, item.clone());
 5807                    }
 5808                    all_deserialized_items.push(item);
 5809                }
 5810            })?;
 5811
 5812            let opened_items = paths_to_open
 5813                .into_iter()
 5814                .map(|path_to_open| {
 5815                    path_to_open
 5816                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5817                })
 5818                .collect::<Vec<_>>();
 5819
 5820            // Remove old panes from workspace panes list
 5821            workspace.update_in(cx, |workspace, window, cx| {
 5822                if let Some((center_group, active_pane)) = center_group {
 5823                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5824
 5825                    // Swap workspace center group
 5826                    workspace.center = PaneGroup::with_root(center_group);
 5827                    workspace.center.set_is_center(true);
 5828                    workspace.center.mark_positions(cx);
 5829
 5830                    if let Some(active_pane) = active_pane {
 5831                        workspace.set_active_pane(&active_pane, window, cx);
 5832                        cx.focus_self(window);
 5833                    } else {
 5834                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5835                    }
 5836                }
 5837
 5838                let docks = serialized_workspace.docks;
 5839
 5840                for (dock, serialized_dock) in [
 5841                    (&mut workspace.right_dock, docks.right),
 5842                    (&mut workspace.left_dock, docks.left),
 5843                    (&mut workspace.bottom_dock, docks.bottom),
 5844                ]
 5845                .iter_mut()
 5846                {
 5847                    dock.update(cx, |dock, cx| {
 5848                        dock.serialized_dock = Some(serialized_dock.clone());
 5849                        dock.restore_state(window, cx);
 5850                    });
 5851                }
 5852
 5853                cx.notify();
 5854            })?;
 5855
 5856            let _ = project
 5857                .update(cx, |project, cx| {
 5858                    project
 5859                        .breakpoint_store()
 5860                        .update(cx, |breakpoint_store, cx| {
 5861                            breakpoint_store
 5862                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5863                        })
 5864                })?
 5865                .await;
 5866
 5867            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5868            // after loading the items, we might have different items and in order to avoid
 5869            // the database filling up, we delete items that haven't been loaded now.
 5870            //
 5871            // The items that have been loaded, have been saved after they've been added to the workspace.
 5872            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5873                item_ids_by_kind
 5874                    .into_iter()
 5875                    .map(|(item_kind, loaded_items)| {
 5876                        SerializableItemRegistry::cleanup(
 5877                            item_kind,
 5878                            serialized_workspace.id,
 5879                            loaded_items,
 5880                            window,
 5881                            cx,
 5882                        )
 5883                        .log_err()
 5884                    })
 5885                    .collect::<Vec<_>>()
 5886            })?;
 5887
 5888            futures::future::join_all(clean_up_tasks).await;
 5889
 5890            workspace
 5891                .update_in(cx, |workspace, window, cx| {
 5892                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5893                    workspace.serialize_workspace_internal(window, cx).detach();
 5894
 5895                    // Ensure that we mark the window as edited if we did load dirty items
 5896                    workspace.update_window_edited(window, cx);
 5897                })
 5898                .ok();
 5899
 5900            Ok(opened_items)
 5901        })
 5902    }
 5903
 5904    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5905        self.add_workspace_actions_listeners(div, window, cx)
 5906            .on_action(cx.listener(
 5907                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5908                    for action in &action_sequence.0 {
 5909                        window.dispatch_action(action.boxed_clone(), cx);
 5910                    }
 5911                },
 5912            ))
 5913            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5914            .on_action(cx.listener(Self::close_all_items_and_panes))
 5915            .on_action(cx.listener(Self::save_all))
 5916            .on_action(cx.listener(Self::send_keystrokes))
 5917            .on_action(cx.listener(Self::add_folder_to_project))
 5918            .on_action(cx.listener(Self::follow_next_collaborator))
 5919            .on_action(cx.listener(Self::close_window))
 5920            .on_action(cx.listener(Self::activate_pane_at_index))
 5921            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5922            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5923            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5924            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5925                let pane = workspace.active_pane().clone();
 5926                workspace.unfollow_in_pane(&pane, window, cx);
 5927            }))
 5928            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5929                workspace
 5930                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5931                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5932            }))
 5933            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5934                workspace
 5935                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5936                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5937            }))
 5938            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5939                workspace
 5940                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5941                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5942            }))
 5943            .on_action(
 5944                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5945                    workspace.activate_previous_pane(window, cx)
 5946                }),
 5947            )
 5948            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5949                workspace.activate_next_pane(window, cx)
 5950            }))
 5951            .on_action(
 5952                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5953                    workspace.activate_next_window(cx)
 5954                }),
 5955            )
 5956            .on_action(
 5957                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5958                    workspace.activate_previous_window(cx)
 5959                }),
 5960            )
 5961            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5962                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5963            }))
 5964            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5965                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5966            }))
 5967            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5968                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5969            }))
 5970            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5971                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5972            }))
 5973            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5974                workspace.activate_next_pane(window, cx)
 5975            }))
 5976            .on_action(cx.listener(
 5977                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5978                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5979                },
 5980            ))
 5981            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5982                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5983            }))
 5984            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5985                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5986            }))
 5987            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5988                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5989            }))
 5990            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5991                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5992            }))
 5993            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5994                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5995                    SplitDirection::Down,
 5996                    SplitDirection::Up,
 5997                    SplitDirection::Right,
 5998                    SplitDirection::Left,
 5999                ];
 6000                for dir in DIRECTION_PRIORITY {
 6001                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6002                        workspace.swap_pane_in_direction(dir, cx);
 6003                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6004                        break;
 6005                    }
 6006                }
 6007            }))
 6008            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6009                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6010            }))
 6011            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6012                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6013            }))
 6014            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6015                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6016            }))
 6017            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6018                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6019            }))
 6020            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6021                this.toggle_dock(DockPosition::Left, window, cx);
 6022            }))
 6023            .on_action(cx.listener(
 6024                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6025                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6026                },
 6027            ))
 6028            .on_action(cx.listener(
 6029                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6030                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6031                },
 6032            ))
 6033            .on_action(cx.listener(
 6034                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6035                    if !workspace.close_active_dock(window, cx) {
 6036                        cx.propagate();
 6037                    }
 6038                },
 6039            ))
 6040            .on_action(
 6041                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6042                    workspace.close_all_docks(window, cx);
 6043                }),
 6044            )
 6045            .on_action(cx.listener(Self::toggle_all_docks))
 6046            .on_action(cx.listener(
 6047                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6048                    workspace.clear_all_notifications(cx);
 6049                },
 6050            ))
 6051            .on_action(cx.listener(
 6052                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6053                    workspace.clear_navigation_history(window, cx);
 6054                },
 6055            ))
 6056            .on_action(cx.listener(
 6057                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6058                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6059                        workspace.suppress_notification(&notification_id, cx);
 6060                    }
 6061                },
 6062            ))
 6063            .on_action(cx.listener(
 6064                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6065                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6066                },
 6067            ))
 6068            .on_action(
 6069                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6070                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6071                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6072                            trusted_worktrees.clear_trusted_paths()
 6073                        });
 6074                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6075                        cx.spawn(async move |_, cx| {
 6076                            if clear_task.await.log_err().is_some() {
 6077                                cx.update(|cx| reload(cx)).ok();
 6078                            }
 6079                        })
 6080                        .detach();
 6081                    }
 6082                }),
 6083            )
 6084            .on_action(cx.listener(
 6085                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6086                    workspace.reopen_closed_item(window, cx).detach();
 6087                },
 6088            ))
 6089            .on_action(cx.listener(
 6090                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6091                    for dock in workspace.all_docks() {
 6092                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6093                            let Some(panel) = dock.read(cx).active_panel() else {
 6094                                return;
 6095                            };
 6096
 6097                            // Set to `None`, then the size will fall back to the default.
 6098                            panel.clone().set_size(None, window, cx);
 6099
 6100                            return;
 6101                        }
 6102                    }
 6103                },
 6104            ))
 6105            .on_action(cx.listener(
 6106                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6107                    for dock in workspace.all_docks() {
 6108                        if let Some(panel) = dock.read(cx).visible_panel() {
 6109                            // Set to `None`, then the size will fall back to the default.
 6110                            panel.clone().set_size(None, window, cx);
 6111                        }
 6112                    }
 6113                },
 6114            ))
 6115            .on_action(cx.listener(
 6116                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6117                    adjust_active_dock_size_by_px(
 6118                        px_with_ui_font_fallback(act.px, cx),
 6119                        workspace,
 6120                        window,
 6121                        cx,
 6122                    );
 6123                },
 6124            ))
 6125            .on_action(cx.listener(
 6126                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6127                    adjust_active_dock_size_by_px(
 6128                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6129                        workspace,
 6130                        window,
 6131                        cx,
 6132                    );
 6133                },
 6134            ))
 6135            .on_action(cx.listener(
 6136                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6137                    adjust_open_docks_size_by_px(
 6138                        px_with_ui_font_fallback(act.px, cx),
 6139                        workspace,
 6140                        window,
 6141                        cx,
 6142                    );
 6143                },
 6144            ))
 6145            .on_action(cx.listener(
 6146                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6147                    adjust_open_docks_size_by_px(
 6148                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6149                        workspace,
 6150                        window,
 6151                        cx,
 6152                    );
 6153                },
 6154            ))
 6155            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6156            .on_action(cx.listener(
 6157                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6158                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6159                        let dock = active_dock.read(cx);
 6160                        if let Some(active_panel) = dock.active_panel() {
 6161                            if active_panel.pane(cx).is_none() {
 6162                                let mut recent_pane: Option<Entity<Pane>> = None;
 6163                                let mut recent_timestamp = 0;
 6164                                for pane_handle in workspace.panes() {
 6165                                    let pane = pane_handle.read(cx);
 6166                                    for entry in pane.activation_history() {
 6167                                        if entry.timestamp > recent_timestamp {
 6168                                            recent_timestamp = entry.timestamp;
 6169                                            recent_pane = Some(pane_handle.clone());
 6170                                        }
 6171                                    }
 6172                                }
 6173
 6174                                if let Some(pane) = recent_pane {
 6175                                    pane.update(cx, |pane, cx| {
 6176                                        let current_index = pane.active_item_index();
 6177                                        let items_len = pane.items_len();
 6178                                        if items_len > 0 {
 6179                                            let next_index = if current_index + 1 < items_len {
 6180                                                current_index + 1
 6181                                            } else {
 6182                                                0
 6183                                            };
 6184                                            pane.activate_item(
 6185                                                next_index, false, false, window, cx,
 6186                                            );
 6187                                        }
 6188                                    });
 6189                                    return;
 6190                                }
 6191                            }
 6192                        }
 6193                    }
 6194                    cx.propagate();
 6195                },
 6196            ))
 6197            .on_action(cx.listener(
 6198                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6199                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6200                        let dock = active_dock.read(cx);
 6201                        if let Some(active_panel) = dock.active_panel() {
 6202                            if active_panel.pane(cx).is_none() {
 6203                                let mut recent_pane: Option<Entity<Pane>> = None;
 6204                                let mut recent_timestamp = 0;
 6205                                for pane_handle in workspace.panes() {
 6206                                    let pane = pane_handle.read(cx);
 6207                                    for entry in pane.activation_history() {
 6208                                        if entry.timestamp > recent_timestamp {
 6209                                            recent_timestamp = entry.timestamp;
 6210                                            recent_pane = Some(pane_handle.clone());
 6211                                        }
 6212                                    }
 6213                                }
 6214
 6215                                if let Some(pane) = recent_pane {
 6216                                    pane.update(cx, |pane, cx| {
 6217                                        let current_index = pane.active_item_index();
 6218                                        let items_len = pane.items_len();
 6219                                        if items_len > 0 {
 6220                                            let prev_index = if current_index > 0 {
 6221                                                current_index - 1
 6222                                            } else {
 6223                                                items_len.saturating_sub(1)
 6224                                            };
 6225                                            pane.activate_item(
 6226                                                prev_index, false, false, window, cx,
 6227                                            );
 6228                                        }
 6229                                    });
 6230                                    return;
 6231                                }
 6232                            }
 6233                        }
 6234                    }
 6235                    cx.propagate();
 6236                },
 6237            ))
 6238            .on_action(cx.listener(Workspace::cancel))
 6239    }
 6240
 6241    #[cfg(any(test, feature = "test-support"))]
 6242    pub fn set_random_database_id(&mut self) {
 6243        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6244    }
 6245
 6246    #[cfg(any(test, feature = "test-support"))]
 6247    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6248        use node_runtime::NodeRuntime;
 6249        use session::Session;
 6250
 6251        let client = project.read(cx).client();
 6252        let user_store = project.read(cx).user_store();
 6253        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6254        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6255        window.activate_window();
 6256        let app_state = Arc::new(AppState {
 6257            languages: project.read(cx).languages().clone(),
 6258            workspace_store,
 6259            client,
 6260            user_store,
 6261            fs: project.read(cx).fs().clone(),
 6262            build_window_options: |_, _| Default::default(),
 6263            node_runtime: NodeRuntime::unavailable(),
 6264            session,
 6265        });
 6266        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6267        workspace
 6268            .active_pane
 6269            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6270        workspace
 6271    }
 6272
 6273    pub fn register_action<A: Action>(
 6274        &mut self,
 6275        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6276    ) -> &mut Self {
 6277        let callback = Arc::new(callback);
 6278
 6279        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6280            let callback = callback.clone();
 6281            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6282                (callback)(workspace, event, window, cx)
 6283            }))
 6284        }));
 6285        self
 6286    }
 6287    pub fn register_action_renderer(
 6288        &mut self,
 6289        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6290    ) -> &mut Self {
 6291        self.workspace_actions.push(Box::new(callback));
 6292        self
 6293    }
 6294
 6295    fn add_workspace_actions_listeners(
 6296        &self,
 6297        mut div: Div,
 6298        window: &mut Window,
 6299        cx: &mut Context<Self>,
 6300    ) -> Div {
 6301        for action in self.workspace_actions.iter() {
 6302            div = (action)(div, self, window, cx)
 6303        }
 6304        div
 6305    }
 6306
 6307    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6308        self.modal_layer.read(cx).has_active_modal()
 6309    }
 6310
 6311    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6312        self.modal_layer.read(cx).active_modal()
 6313    }
 6314
 6315    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6316    where
 6317        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6318    {
 6319        self.modal_layer.update(cx, |modal_layer, cx| {
 6320            modal_layer.toggle_modal(window, cx, build)
 6321        })
 6322    }
 6323
 6324    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6325        self.modal_layer
 6326            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6327    }
 6328
 6329    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6330        self.toast_layer
 6331            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6332    }
 6333
 6334    pub fn toggle_centered_layout(
 6335        &mut self,
 6336        _: &ToggleCenteredLayout,
 6337        _: &mut Window,
 6338        cx: &mut Context<Self>,
 6339    ) {
 6340        self.centered_layout = !self.centered_layout;
 6341        if let Some(database_id) = self.database_id() {
 6342            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6343                .detach_and_log_err(cx);
 6344        }
 6345        cx.notify();
 6346    }
 6347
 6348    fn adjust_padding(padding: Option<f32>) -> f32 {
 6349        padding
 6350            .unwrap_or(CenteredPaddingSettings::default().0)
 6351            .clamp(
 6352                CenteredPaddingSettings::MIN_PADDING,
 6353                CenteredPaddingSettings::MAX_PADDING,
 6354            )
 6355    }
 6356
 6357    fn render_dock(
 6358        &self,
 6359        position: DockPosition,
 6360        dock: &Entity<Dock>,
 6361        window: &mut Window,
 6362        cx: &mut App,
 6363    ) -> Option<Div> {
 6364        if self.zoomed_position == Some(position) {
 6365            return None;
 6366        }
 6367
 6368        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6369            let pane = panel.pane(cx)?;
 6370            let follower_states = &self.follower_states;
 6371            leader_border_for_pane(follower_states, &pane, window, cx)
 6372        });
 6373
 6374        Some(
 6375            div()
 6376                .flex()
 6377                .flex_none()
 6378                .overflow_hidden()
 6379                .child(dock.clone())
 6380                .children(leader_border),
 6381        )
 6382    }
 6383
 6384    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6385        window.root().flatten()
 6386    }
 6387
 6388    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6389        self.zoomed.as_ref()
 6390    }
 6391
 6392    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6393        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6394            return;
 6395        };
 6396        let windows = cx.windows();
 6397        let next_window =
 6398            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6399                || {
 6400                    windows
 6401                        .iter()
 6402                        .cycle()
 6403                        .skip_while(|window| window.window_id() != current_window_id)
 6404                        .nth(1)
 6405                },
 6406            );
 6407
 6408        if let Some(window) = next_window {
 6409            window
 6410                .update(cx, |_, window, _| window.activate_window())
 6411                .ok();
 6412        }
 6413    }
 6414
 6415    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6416        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6417            return;
 6418        };
 6419        let windows = cx.windows();
 6420        let prev_window =
 6421            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6422                || {
 6423                    windows
 6424                        .iter()
 6425                        .rev()
 6426                        .cycle()
 6427                        .skip_while(|window| window.window_id() != current_window_id)
 6428                        .nth(1)
 6429                },
 6430            );
 6431
 6432        if let Some(window) = prev_window {
 6433            window
 6434                .update(cx, |_, window, _| window.activate_window())
 6435                .ok();
 6436        }
 6437    }
 6438
 6439    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6440        if cx.stop_active_drag(window) {
 6441        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6442            dismiss_app_notification(&notification_id, cx);
 6443        } else {
 6444            cx.propagate();
 6445        }
 6446    }
 6447
 6448    fn adjust_dock_size_by_px(
 6449        &mut self,
 6450        panel_size: Pixels,
 6451        dock_pos: DockPosition,
 6452        px: Pixels,
 6453        window: &mut Window,
 6454        cx: &mut Context<Self>,
 6455    ) {
 6456        match dock_pos {
 6457            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6458            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6459            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6460        }
 6461    }
 6462
 6463    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6464        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6465
 6466        self.left_dock.update(cx, |left_dock, cx| {
 6467            if WorkspaceSettings::get_global(cx)
 6468                .resize_all_panels_in_dock
 6469                .contains(&DockPosition::Left)
 6470            {
 6471                left_dock.resize_all_panels(Some(size), window, cx);
 6472            } else {
 6473                left_dock.resize_active_panel(Some(size), window, cx);
 6474            }
 6475        });
 6476        self.clamp_utility_pane_widths(window, cx);
 6477    }
 6478
 6479    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6480        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6481        self.left_dock.read_with(cx, |left_dock, cx| {
 6482            let left_dock_size = left_dock
 6483                .active_panel_size(window, cx)
 6484                .unwrap_or(Pixels::ZERO);
 6485            if left_dock_size + size > self.bounds.right() {
 6486                size = self.bounds.right() - left_dock_size
 6487            }
 6488        });
 6489        self.right_dock.update(cx, |right_dock, cx| {
 6490            if WorkspaceSettings::get_global(cx)
 6491                .resize_all_panels_in_dock
 6492                .contains(&DockPosition::Right)
 6493            {
 6494                right_dock.resize_all_panels(Some(size), window, cx);
 6495            } else {
 6496                right_dock.resize_active_panel(Some(size), window, cx);
 6497            }
 6498        });
 6499        self.clamp_utility_pane_widths(window, cx);
 6500    }
 6501
 6502    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6503        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6504        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6505            if WorkspaceSettings::get_global(cx)
 6506                .resize_all_panels_in_dock
 6507                .contains(&DockPosition::Bottom)
 6508            {
 6509                bottom_dock.resize_all_panels(Some(size), window, cx);
 6510            } else {
 6511                bottom_dock.resize_active_panel(Some(size), window, cx);
 6512            }
 6513        });
 6514        self.clamp_utility_pane_widths(window, cx);
 6515    }
 6516
 6517    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6518        let left_dock_width = self
 6519            .left_dock
 6520            .read(cx)
 6521            .active_panel_size(window, cx)
 6522            .unwrap_or(px(0.0));
 6523        let right_dock_width = self
 6524            .right_dock
 6525            .read(cx)
 6526            .active_panel_size(window, cx)
 6527            .unwrap_or(px(0.0));
 6528        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6529        center_pane_width - px(10.0)
 6530    }
 6531
 6532    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6533        let max_width = self.max_utility_pane_width(window, cx);
 6534
 6535        // Clamp left slot utility pane if it exists
 6536        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6537            let current_width = handle.width(cx);
 6538            if current_width > max_width {
 6539                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6540            }
 6541        }
 6542
 6543        // Clamp right slot utility pane if it exists
 6544        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6545            let current_width = handle.width(cx);
 6546            if current_width > max_width {
 6547                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6548            }
 6549        }
 6550    }
 6551
 6552    fn toggle_edit_predictions_all_files(
 6553        &mut self,
 6554        _: &ToggleEditPrediction,
 6555        _window: &mut Window,
 6556        cx: &mut Context<Self>,
 6557    ) {
 6558        let fs = self.project().read(cx).fs().clone();
 6559        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6560        update_settings_file(fs, cx, move |file, _| {
 6561            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6562        });
 6563    }
 6564
 6565    pub fn show_worktree_trust_security_modal(
 6566        &mut self,
 6567        toggle: bool,
 6568        window: &mut Window,
 6569        cx: &mut Context<Self>,
 6570    ) {
 6571        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6572            if toggle {
 6573                security_modal.update(cx, |security_modal, cx| {
 6574                    security_modal.dismiss(cx);
 6575                })
 6576            } else {
 6577                security_modal.update(cx, |security_modal, cx| {
 6578                    security_modal.refresh_restricted_paths(cx);
 6579                });
 6580            }
 6581        } else {
 6582            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6583                .map(|trusted_worktrees| {
 6584                    trusted_worktrees
 6585                        .read(cx)
 6586                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6587                })
 6588                .unwrap_or(false);
 6589            if has_restricted_worktrees {
 6590                let project = self.project().read(cx);
 6591                let remote_host = project.remote_connection_options(cx);
 6592                let worktree_store = project.worktree_store().downgrade();
 6593                self.toggle_modal(window, cx, |_, cx| {
 6594                    SecurityModal::new(worktree_store, remote_host, cx)
 6595                });
 6596            }
 6597        }
 6598    }
 6599
 6600    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6601        self.update_window_title(window, cx);
 6602        self.serialize_workspace(window, cx);
 6603        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6604        self.update_history(cx);
 6605    }
 6606}
 6607
 6608fn leader_border_for_pane(
 6609    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6610    pane: &Entity<Pane>,
 6611    _: &Window,
 6612    cx: &App,
 6613) -> Option<Div> {
 6614    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6615        if state.pane() == pane {
 6616            Some((*leader_id, state))
 6617        } else {
 6618            None
 6619        }
 6620    })?;
 6621
 6622    let mut leader_color = match leader_id {
 6623        CollaboratorId::PeerId(leader_peer_id) => {
 6624            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6625            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6626
 6627            cx.theme()
 6628                .players()
 6629                .color_for_participant(leader.participant_index.0)
 6630                .cursor
 6631        }
 6632        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6633    };
 6634    leader_color.fade_out(0.3);
 6635    Some(
 6636        div()
 6637            .absolute()
 6638            .size_full()
 6639            .left_0()
 6640            .top_0()
 6641            .border_2()
 6642            .border_color(leader_color),
 6643    )
 6644}
 6645
 6646fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6647    ZED_WINDOW_POSITION
 6648        .zip(*ZED_WINDOW_SIZE)
 6649        .map(|(position, size)| Bounds {
 6650            origin: position,
 6651            size,
 6652        })
 6653}
 6654
 6655fn open_items(
 6656    serialized_workspace: Option<SerializedWorkspace>,
 6657    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6658    window: &mut Window,
 6659    cx: &mut Context<Workspace>,
 6660) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6661    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6662        Workspace::load_workspace(
 6663            serialized_workspace,
 6664            project_paths_to_open
 6665                .iter()
 6666                .map(|(_, project_path)| project_path)
 6667                .cloned()
 6668                .collect(),
 6669            window,
 6670            cx,
 6671        )
 6672    });
 6673
 6674    cx.spawn_in(window, async move |workspace, cx| {
 6675        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6676
 6677        if let Some(restored_items) = restored_items {
 6678            let restored_items = restored_items.await?;
 6679
 6680            let restored_project_paths = restored_items
 6681                .iter()
 6682                .filter_map(|item| {
 6683                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6684                        .ok()
 6685                        .flatten()
 6686                })
 6687                .collect::<HashSet<_>>();
 6688
 6689            for restored_item in restored_items {
 6690                opened_items.push(restored_item.map(Ok));
 6691            }
 6692
 6693            project_paths_to_open
 6694                .iter_mut()
 6695                .for_each(|(_, project_path)| {
 6696                    if let Some(project_path_to_open) = project_path
 6697                        && restored_project_paths.contains(project_path_to_open)
 6698                    {
 6699                        *project_path = None;
 6700                    }
 6701                });
 6702        } else {
 6703            for _ in 0..project_paths_to_open.len() {
 6704                opened_items.push(None);
 6705            }
 6706        }
 6707        assert!(opened_items.len() == project_paths_to_open.len());
 6708
 6709        let tasks =
 6710            project_paths_to_open
 6711                .into_iter()
 6712                .enumerate()
 6713                .map(|(ix, (abs_path, project_path))| {
 6714                    let workspace = workspace.clone();
 6715                    cx.spawn(async move |cx| {
 6716                        let file_project_path = project_path?;
 6717                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6718                            workspace.project().update(cx, |project, cx| {
 6719                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6720                            })
 6721                        });
 6722
 6723                        // We only want to open file paths here. If one of the items
 6724                        // here is a directory, it was already opened further above
 6725                        // with a `find_or_create_worktree`.
 6726                        if let Ok(task) = abs_path_task
 6727                            && task.await.is_none_or(|p| p.is_file())
 6728                        {
 6729                            return Some((
 6730                                ix,
 6731                                workspace
 6732                                    .update_in(cx, |workspace, window, cx| {
 6733                                        workspace.open_path(
 6734                                            file_project_path,
 6735                                            None,
 6736                                            true,
 6737                                            window,
 6738                                            cx,
 6739                                        )
 6740                                    })
 6741                                    .log_err()?
 6742                                    .await,
 6743                            ));
 6744                        }
 6745                        None
 6746                    })
 6747                });
 6748
 6749        let tasks = tasks.collect::<Vec<_>>();
 6750
 6751        let tasks = futures::future::join_all(tasks);
 6752        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6753            opened_items[ix] = Some(path_open_result);
 6754        }
 6755
 6756        Ok(opened_items)
 6757    })
 6758}
 6759
 6760enum ActivateInDirectionTarget {
 6761    Pane(Entity<Pane>),
 6762    Dock(Entity<Dock>),
 6763}
 6764
 6765fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6766    workspace
 6767        .update(cx, |workspace, _, cx| {
 6768            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6769                struct DatabaseFailedNotification;
 6770
 6771                workspace.show_notification(
 6772                    NotificationId::unique::<DatabaseFailedNotification>(),
 6773                    cx,
 6774                    |cx| {
 6775                        cx.new(|cx| {
 6776                            MessageNotification::new("Failed to load the database file.", cx)
 6777                                .primary_message("File an Issue")
 6778                                .primary_icon(IconName::Plus)
 6779                                .primary_on_click(|window, cx| {
 6780                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6781                                })
 6782                        })
 6783                    },
 6784                );
 6785            }
 6786        })
 6787        .log_err();
 6788}
 6789
 6790fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6791    if val == 0 {
 6792        ThemeSettings::get_global(cx).ui_font_size(cx)
 6793    } else {
 6794        px(val as f32)
 6795    }
 6796}
 6797
 6798fn adjust_active_dock_size_by_px(
 6799    px: Pixels,
 6800    workspace: &mut Workspace,
 6801    window: &mut Window,
 6802    cx: &mut Context<Workspace>,
 6803) {
 6804    let Some(active_dock) = workspace
 6805        .all_docks()
 6806        .into_iter()
 6807        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6808    else {
 6809        return;
 6810    };
 6811    let dock = active_dock.read(cx);
 6812    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6813        return;
 6814    };
 6815    let dock_pos = dock.position();
 6816    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6817}
 6818
 6819fn adjust_open_docks_size_by_px(
 6820    px: Pixels,
 6821    workspace: &mut Workspace,
 6822    window: &mut Window,
 6823    cx: &mut Context<Workspace>,
 6824) {
 6825    let docks = workspace
 6826        .all_docks()
 6827        .into_iter()
 6828        .filter_map(|dock| {
 6829            if dock.read(cx).is_open() {
 6830                let dock = dock.read(cx);
 6831                let panel_size = dock.active_panel_size(window, cx)?;
 6832                let dock_pos = dock.position();
 6833                Some((panel_size, dock_pos, px))
 6834            } else {
 6835                None
 6836            }
 6837        })
 6838        .collect::<Vec<_>>();
 6839
 6840    docks
 6841        .into_iter()
 6842        .for_each(|(panel_size, dock_pos, offset)| {
 6843            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6844        });
 6845}
 6846
 6847impl Focusable for Workspace {
 6848    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6849        self.active_pane.focus_handle(cx)
 6850    }
 6851}
 6852
 6853#[derive(Clone)]
 6854struct DraggedDock(DockPosition);
 6855
 6856impl Render for DraggedDock {
 6857    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6858        gpui::Empty
 6859    }
 6860}
 6861
 6862impl Render for Workspace {
 6863    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6864        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6865        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6866            log::info!("Rendered first frame");
 6867        }
 6868        let mut context = KeyContext::new_with_defaults();
 6869        context.add("Workspace");
 6870        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6871        if let Some(status) = self
 6872            .debugger_provider
 6873            .as_ref()
 6874            .and_then(|provider| provider.active_thread_state(cx))
 6875        {
 6876            match status {
 6877                ThreadStatus::Running | ThreadStatus::Stepping => {
 6878                    context.add("debugger_running");
 6879                }
 6880                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6881                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6882            }
 6883        }
 6884
 6885        if self.left_dock.read(cx).is_open() {
 6886            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6887                context.set("left_dock", active_panel.panel_key());
 6888            }
 6889        }
 6890
 6891        if self.right_dock.read(cx).is_open() {
 6892            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6893                context.set("right_dock", active_panel.panel_key());
 6894            }
 6895        }
 6896
 6897        if self.bottom_dock.read(cx).is_open() {
 6898            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6899                context.set("bottom_dock", active_panel.panel_key());
 6900            }
 6901        }
 6902
 6903        let centered_layout = self.centered_layout
 6904            && self.center.panes().len() == 1
 6905            && self.active_item(cx).is_some();
 6906        let render_padding = |size| {
 6907            (size > 0.0).then(|| {
 6908                div()
 6909                    .h_full()
 6910                    .w(relative(size))
 6911                    .bg(cx.theme().colors().editor_background)
 6912                    .border_color(cx.theme().colors().pane_group_border)
 6913            })
 6914        };
 6915        let paddings = if centered_layout {
 6916            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6917            (
 6918                render_padding(Self::adjust_padding(
 6919                    settings.left_padding.map(|padding| padding.0),
 6920                )),
 6921                render_padding(Self::adjust_padding(
 6922                    settings.right_padding.map(|padding| padding.0),
 6923                )),
 6924            )
 6925        } else {
 6926            (None, None)
 6927        };
 6928        let ui_font = theme::setup_ui_font(window, cx);
 6929
 6930        let theme = cx.theme().clone();
 6931        let colors = theme.colors();
 6932        let notification_entities = self
 6933            .notifications
 6934            .iter()
 6935            .map(|(_, notification)| notification.entity_id())
 6936            .collect::<Vec<_>>();
 6937        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6938
 6939        client_side_decorations(
 6940            self.actions(div(), window, cx)
 6941                .key_context(context)
 6942                .relative()
 6943                .size_full()
 6944                .flex()
 6945                .flex_col()
 6946                .font(ui_font)
 6947                .gap_0()
 6948                .justify_start()
 6949                .items_start()
 6950                .text_color(colors.text)
 6951                .overflow_hidden()
 6952                .children(self.titlebar_item.clone())
 6953                .on_modifiers_changed(move |_, _, cx| {
 6954                    for &id in &notification_entities {
 6955                        cx.notify(id);
 6956                    }
 6957                })
 6958                .child(
 6959                    div()
 6960                        .size_full()
 6961                        .relative()
 6962                        .flex_1()
 6963                        .flex()
 6964                        .flex_col()
 6965                        .child(
 6966                            div()
 6967                                .id("workspace")
 6968                                .bg(colors.background)
 6969                                .relative()
 6970                                .flex_1()
 6971                                .w_full()
 6972                                .flex()
 6973                                .flex_col()
 6974                                .overflow_hidden()
 6975                                .border_t_1()
 6976                                .border_b_1()
 6977                                .border_color(colors.border)
 6978                                .child({
 6979                                    let this = cx.entity();
 6980                                    canvas(
 6981                                        move |bounds, window, cx| {
 6982                                            this.update(cx, |this, cx| {
 6983                                                let bounds_changed = this.bounds != bounds;
 6984                                                this.bounds = bounds;
 6985
 6986                                                if bounds_changed {
 6987                                                    this.left_dock.update(cx, |dock, cx| {
 6988                                                        dock.clamp_panel_size(
 6989                                                            bounds.size.width,
 6990                                                            window,
 6991                                                            cx,
 6992                                                        )
 6993                                                    });
 6994
 6995                                                    this.right_dock.update(cx, |dock, cx| {
 6996                                                        dock.clamp_panel_size(
 6997                                                            bounds.size.width,
 6998                                                            window,
 6999                                                            cx,
 7000                                                        )
 7001                                                    });
 7002
 7003                                                    this.bottom_dock.update(cx, |dock, cx| {
 7004                                                        dock.clamp_panel_size(
 7005                                                            bounds.size.height,
 7006                                                            window,
 7007                                                            cx,
 7008                                                        )
 7009                                                    });
 7010                                                }
 7011                                            })
 7012                                        },
 7013                                        |_, _, _, _| {},
 7014                                    )
 7015                                    .absolute()
 7016                                    .size_full()
 7017                                })
 7018                                .when(self.zoomed.is_none(), |this| {
 7019                                    this.on_drag_move(cx.listener(
 7020                                        move |workspace,
 7021                                              e: &DragMoveEvent<DraggedDock>,
 7022                                              window,
 7023                                              cx| {
 7024                                            if workspace.previous_dock_drag_coordinates
 7025                                                != Some(e.event.position)
 7026                                            {
 7027                                                workspace.previous_dock_drag_coordinates =
 7028                                                    Some(e.event.position);
 7029                                                match e.drag(cx).0 {
 7030                                                    DockPosition::Left => {
 7031                                                        workspace.resize_left_dock(
 7032                                                            e.event.position.x
 7033                                                                - workspace.bounds.left(),
 7034                                                            window,
 7035                                                            cx,
 7036                                                        );
 7037                                                    }
 7038                                                    DockPosition::Right => {
 7039                                                        workspace.resize_right_dock(
 7040                                                            workspace.bounds.right()
 7041                                                                - e.event.position.x,
 7042                                                            window,
 7043                                                            cx,
 7044                                                        );
 7045                                                    }
 7046                                                    DockPosition::Bottom => {
 7047                                                        workspace.resize_bottom_dock(
 7048                                                            workspace.bounds.bottom()
 7049                                                                - e.event.position.y,
 7050                                                            window,
 7051                                                            cx,
 7052                                                        );
 7053                                                    }
 7054                                                };
 7055                                                workspace.serialize_workspace(window, cx);
 7056                                            }
 7057                                        },
 7058                                    ))
 7059                                    .on_drag_move(cx.listener(
 7060                                        move |workspace,
 7061                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7062                                              window,
 7063                                              cx| {
 7064                                            let slot = e.drag(cx).0;
 7065                                            match slot {
 7066                                                UtilityPaneSlot::Left => {
 7067                                                    let left_dock_width = workspace.left_dock.read(cx)
 7068                                                        .active_panel_size(window, cx)
 7069                                                        .unwrap_or(gpui::px(0.0));
 7070                                                    let new_width = e.event.position.x
 7071                                                        - workspace.bounds.left()
 7072                                                        - left_dock_width;
 7073                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7074                                                }
 7075                                                UtilityPaneSlot::Right => {
 7076                                                    let right_dock_width = workspace.right_dock.read(cx)
 7077                                                        .active_panel_size(window, cx)
 7078                                                        .unwrap_or(gpui::px(0.0));
 7079                                                    let new_width = workspace.bounds.right()
 7080                                                        - e.event.position.x
 7081                                                        - right_dock_width;
 7082                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7083                                                }
 7084                                            }
 7085                                        },
 7086                                    ))
 7087                                })
 7088                                .child({
 7089                                    match bottom_dock_layout {
 7090                                        BottomDockLayout::Full => div()
 7091                                            .flex()
 7092                                            .flex_col()
 7093                                            .h_full()
 7094                                            .child(
 7095                                                div()
 7096                                                    .flex()
 7097                                                    .flex_row()
 7098                                                    .flex_1()
 7099                                                    .overflow_hidden()
 7100                                                    .children(self.render_dock(
 7101                                                        DockPosition::Left,
 7102                                                        &self.left_dock,
 7103                                                        window,
 7104                                                        cx,
 7105                                                    ))
 7106                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7107                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7108                                                            this.when(pane.expanded(cx), |this| {
 7109                                                                this.child(
 7110                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7111                                                                )
 7112                                                            })
 7113                                                        })
 7114                                                    })
 7115                                                    .child(
 7116                                                        div()
 7117                                                            .flex()
 7118                                                            .flex_col()
 7119                                                            .flex_1()
 7120                                                            .overflow_hidden()
 7121                                                            .child(
 7122                                                                h_flex()
 7123                                                                    .flex_1()
 7124                                                                    .when_some(
 7125                                                                        paddings.0,
 7126                                                                        |this, p| {
 7127                                                                            this.child(
 7128                                                                                p.border_r_1(),
 7129                                                                            )
 7130                                                                        },
 7131                                                                    )
 7132                                                                    .child(self.center.render(
 7133                                                                        self.zoomed.as_ref(),
 7134                                                                        &PaneRenderContext {
 7135                                                                            follower_states:
 7136                                                                                &self.follower_states,
 7137                                                                            active_call: self.active_call(),
 7138                                                                            active_pane: &self.active_pane,
 7139                                                                            app_state: &self.app_state,
 7140                                                                            project: &self.project,
 7141                                                                            workspace: &self.weak_self,
 7142                                                                        },
 7143                                                                        window,
 7144                                                                        cx,
 7145                                                                    ))
 7146                                                                    .when_some(
 7147                                                                        paddings.1,
 7148                                                                        |this, p| {
 7149                                                                            this.child(
 7150                                                                                p.border_l_1(),
 7151                                                                            )
 7152                                                                        },
 7153                                                                    ),
 7154                                                            ),
 7155                                                    )
 7156                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7157                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7158                                                            this.when(pane.expanded(cx), |this| {
 7159                                                                this.child(
 7160                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7161                                                                )
 7162                                                            })
 7163                                                        })
 7164                                                    })
 7165                                                    .children(self.render_dock(
 7166                                                        DockPosition::Right,
 7167                                                        &self.right_dock,
 7168                                                        window,
 7169                                                        cx,
 7170                                                    )),
 7171                                            )
 7172                                            .child(div().w_full().children(self.render_dock(
 7173                                                DockPosition::Bottom,
 7174                                                &self.bottom_dock,
 7175                                                window,
 7176                                                cx
 7177                                            ))),
 7178
 7179                                        BottomDockLayout::LeftAligned => div()
 7180                                            .flex()
 7181                                            .flex_row()
 7182                                            .h_full()
 7183                                            .child(
 7184                                                div()
 7185                                                    .flex()
 7186                                                    .flex_col()
 7187                                                    .flex_1()
 7188                                                    .h_full()
 7189                                                    .child(
 7190                                                        div()
 7191                                                            .flex()
 7192                                                            .flex_row()
 7193                                                            .flex_1()
 7194                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7195                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7196                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7197                                                                    this.when(pane.expanded(cx), |this| {
 7198                                                                        this.child(
 7199                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7200                                                                        )
 7201                                                                    })
 7202                                                                })
 7203                                                            })
 7204                                                            .child(
 7205                                                                div()
 7206                                                                    .flex()
 7207                                                                    .flex_col()
 7208                                                                    .flex_1()
 7209                                                                    .overflow_hidden()
 7210                                                                    .child(
 7211                                                                        h_flex()
 7212                                                                            .flex_1()
 7213                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7214                                                                            .child(self.center.render(
 7215                                                                                self.zoomed.as_ref(),
 7216                                                                                &PaneRenderContext {
 7217                                                                                    follower_states:
 7218                                                                                        &self.follower_states,
 7219                                                                                    active_call: self.active_call(),
 7220                                                                                    active_pane: &self.active_pane,
 7221                                                                                    app_state: &self.app_state,
 7222                                                                                    project: &self.project,
 7223                                                                                    workspace: &self.weak_self,
 7224                                                                                },
 7225                                                                                window,
 7226                                                                                cx,
 7227                                                                            ))
 7228                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7229                                                                    )
 7230                                                            )
 7231                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7232                                                                this.when(pane.expanded(cx), |this| {
 7233                                                                    this.child(
 7234                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7235                                                                    )
 7236                                                                })
 7237                                                            })
 7238                                                    )
 7239                                                    .child(
 7240                                                        div()
 7241                                                            .w_full()
 7242                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7243                                                    ),
 7244                                            )
 7245                                            .children(self.render_dock(
 7246                                                DockPosition::Right,
 7247                                                &self.right_dock,
 7248                                                window,
 7249                                                cx,
 7250                                            )),
 7251
 7252                                        BottomDockLayout::RightAligned => div()
 7253                                            .flex()
 7254                                            .flex_row()
 7255                                            .h_full()
 7256                                            .children(self.render_dock(
 7257                                                DockPosition::Left,
 7258                                                &self.left_dock,
 7259                                                window,
 7260                                                cx,
 7261                                            ))
 7262                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7263                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7264                                                    this.when(pane.expanded(cx), |this| {
 7265                                                        this.child(
 7266                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7267                                                        )
 7268                                                    })
 7269                                                })
 7270                                            })
 7271                                            .child(
 7272                                                div()
 7273                                                    .flex()
 7274                                                    .flex_col()
 7275                                                    .flex_1()
 7276                                                    .h_full()
 7277                                                    .child(
 7278                                                        div()
 7279                                                            .flex()
 7280                                                            .flex_row()
 7281                                                            .flex_1()
 7282                                                            .child(
 7283                                                                div()
 7284                                                                    .flex()
 7285                                                                    .flex_col()
 7286                                                                    .flex_1()
 7287                                                                    .overflow_hidden()
 7288                                                                    .child(
 7289                                                                        h_flex()
 7290                                                                            .flex_1()
 7291                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7292                                                                            .child(self.center.render(
 7293                                                                                self.zoomed.as_ref(),
 7294                                                                                &PaneRenderContext {
 7295                                                                                    follower_states:
 7296                                                                                        &self.follower_states,
 7297                                                                                    active_call: self.active_call(),
 7298                                                                                    active_pane: &self.active_pane,
 7299                                                                                    app_state: &self.app_state,
 7300                                                                                    project: &self.project,
 7301                                                                                    workspace: &self.weak_self,
 7302                                                                                },
 7303                                                                                window,
 7304                                                                                cx,
 7305                                                                            ))
 7306                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7307                                                                    )
 7308                                                            )
 7309                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7310                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7311                                                                    this.when(pane.expanded(cx), |this| {
 7312                                                                        this.child(
 7313                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7314                                                                        )
 7315                                                                    })
 7316                                                                })
 7317                                                            })
 7318                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7319                                                    )
 7320                                                    .child(
 7321                                                        div()
 7322                                                            .w_full()
 7323                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7324                                                    ),
 7325                                            ),
 7326
 7327                                        BottomDockLayout::Contained => div()
 7328                                            .flex()
 7329                                            .flex_row()
 7330                                            .h_full()
 7331                                            .children(self.render_dock(
 7332                                                DockPosition::Left,
 7333                                                &self.left_dock,
 7334                                                window,
 7335                                                cx,
 7336                                            ))
 7337                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7338                                                this.when(pane.expanded(cx), |this| {
 7339                                                    this.child(
 7340                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7341                                                    )
 7342                                                })
 7343                                            })
 7344                                            .child(
 7345                                                div()
 7346                                                    .flex()
 7347                                                    .flex_col()
 7348                                                    .flex_1()
 7349                                                    .overflow_hidden()
 7350                                                    .child(
 7351                                                        h_flex()
 7352                                                            .flex_1()
 7353                                                            .when_some(paddings.0, |this, p| {
 7354                                                                this.child(p.border_r_1())
 7355                                                            })
 7356                                                            .child(self.center.render(
 7357                                                                self.zoomed.as_ref(),
 7358                                                                &PaneRenderContext {
 7359                                                                    follower_states:
 7360                                                                        &self.follower_states,
 7361                                                                    active_call: self.active_call(),
 7362                                                                    active_pane: &self.active_pane,
 7363                                                                    app_state: &self.app_state,
 7364                                                                    project: &self.project,
 7365                                                                    workspace: &self.weak_self,
 7366                                                                },
 7367                                                                window,
 7368                                                                cx,
 7369                                                            ))
 7370                                                            .when_some(paddings.1, |this, p| {
 7371                                                                this.child(p.border_l_1())
 7372                                                            }),
 7373                                                    )
 7374                                                    .children(self.render_dock(
 7375                                                        DockPosition::Bottom,
 7376                                                        &self.bottom_dock,
 7377                                                        window,
 7378                                                        cx,
 7379                                                    )),
 7380                                            )
 7381                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7382                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7383                                                    this.when(pane.expanded(cx), |this| {
 7384                                                        this.child(
 7385                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7386                                                        )
 7387                                                    })
 7388                                                })
 7389                                            })
 7390                                            .children(self.render_dock(
 7391                                                DockPosition::Right,
 7392                                                &self.right_dock,
 7393                                                window,
 7394                                                cx,
 7395                                            )),
 7396                                    }
 7397                                })
 7398                                .children(self.zoomed.as_ref().and_then(|view| {
 7399                                    let zoomed_view = view.upgrade()?;
 7400                                    let div = div()
 7401                                        .occlude()
 7402                                        .absolute()
 7403                                        .overflow_hidden()
 7404                                        .border_color(colors.border)
 7405                                        .bg(colors.background)
 7406                                        .child(zoomed_view)
 7407                                        .inset_0()
 7408                                        .shadow_lg();
 7409
 7410                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7411                                       return Some(div);
 7412                                    }
 7413
 7414                                    Some(match self.zoomed_position {
 7415                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7416                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7417                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7418                                        None => {
 7419                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7420                                        }
 7421                                    })
 7422                                }))
 7423                                .children(self.render_notifications(window, cx)),
 7424                        )
 7425                        .when(self.status_bar_visible(cx), |parent| {
 7426                            parent.child(self.status_bar.clone())
 7427                        })
 7428                        .child(self.modal_layer.clone())
 7429                        .child(self.toast_layer.clone()),
 7430                ),
 7431            window,
 7432            cx,
 7433        )
 7434    }
 7435}
 7436
 7437impl WorkspaceStore {
 7438    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7439        Self {
 7440            workspaces: Default::default(),
 7441            _subscriptions: vec![
 7442                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7443                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7444            ],
 7445            client,
 7446        }
 7447    }
 7448
 7449    pub fn update_followers(
 7450        &self,
 7451        project_id: Option<u64>,
 7452        update: proto::update_followers::Variant,
 7453        cx: &App,
 7454    ) -> Option<()> {
 7455        let active_call = ActiveCall::try_global(cx)?;
 7456        let room_id = active_call.read(cx).room()?.read(cx).id();
 7457        self.client
 7458            .send(proto::UpdateFollowers {
 7459                room_id,
 7460                project_id,
 7461                variant: Some(update),
 7462            })
 7463            .log_err()
 7464    }
 7465
 7466    pub async fn handle_follow(
 7467        this: Entity<Self>,
 7468        envelope: TypedEnvelope<proto::Follow>,
 7469        mut cx: AsyncApp,
 7470    ) -> Result<proto::FollowResponse> {
 7471        this.update(&mut cx, |this, cx| {
 7472            let follower = Follower {
 7473                project_id: envelope.payload.project_id,
 7474                peer_id: envelope.original_sender_id()?,
 7475            };
 7476
 7477            let mut response = proto::FollowResponse::default();
 7478            this.workspaces.retain(|workspace| {
 7479                workspace
 7480                    .update(cx, |workspace, window, cx| {
 7481                        let handler_response =
 7482                            workspace.handle_follow(follower.project_id, window, cx);
 7483                        if let Some(active_view) = handler_response.active_view
 7484                            && workspace.project.read(cx).remote_id() == follower.project_id
 7485                        {
 7486                            response.active_view = Some(active_view)
 7487                        }
 7488                    })
 7489                    .is_ok()
 7490            });
 7491
 7492            Ok(response)
 7493        })?
 7494    }
 7495
 7496    async fn handle_update_followers(
 7497        this: Entity<Self>,
 7498        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7499        mut cx: AsyncApp,
 7500    ) -> Result<()> {
 7501        let leader_id = envelope.original_sender_id()?;
 7502        let update = envelope.payload;
 7503
 7504        this.update(&mut cx, |this, cx| {
 7505            this.workspaces.retain(|workspace| {
 7506                workspace
 7507                    .update(cx, |workspace, window, cx| {
 7508                        let project_id = workspace.project.read(cx).remote_id();
 7509                        if update.project_id != project_id && update.project_id.is_some() {
 7510                            return;
 7511                        }
 7512                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7513                    })
 7514                    .is_ok()
 7515            });
 7516            Ok(())
 7517        })?
 7518    }
 7519
 7520    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7521        &self.workspaces
 7522    }
 7523}
 7524
 7525impl ViewId {
 7526    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7527        Ok(Self {
 7528            creator: message
 7529                .creator
 7530                .map(CollaboratorId::PeerId)
 7531                .context("creator is missing")?,
 7532            id: message.id,
 7533        })
 7534    }
 7535
 7536    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7537        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7538            Some(proto::ViewId {
 7539                creator: Some(peer_id),
 7540                id: self.id,
 7541            })
 7542        } else {
 7543            None
 7544        }
 7545    }
 7546}
 7547
 7548impl FollowerState {
 7549    fn pane(&self) -> &Entity<Pane> {
 7550        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7551    }
 7552}
 7553
 7554pub trait WorkspaceHandle {
 7555    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7556}
 7557
 7558impl WorkspaceHandle for Entity<Workspace> {
 7559    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7560        self.read(cx)
 7561            .worktrees(cx)
 7562            .flat_map(|worktree| {
 7563                let worktree_id = worktree.read(cx).id();
 7564                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7565                    worktree_id,
 7566                    path: f.path.clone(),
 7567                })
 7568            })
 7569            .collect::<Vec<_>>()
 7570    }
 7571}
 7572
 7573pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7574    DB.last_workspace().await.log_err().flatten()
 7575}
 7576
 7577pub fn last_session_workspace_locations(
 7578    last_session_id: &str,
 7579    last_session_window_stack: Option<Vec<WindowId>>,
 7580) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7581    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7582        .log_err()
 7583}
 7584
 7585actions!(
 7586    collab,
 7587    [
 7588        /// Opens the channel notes for the current call.
 7589        ///
 7590        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7591        /// channel in the collab panel.
 7592        ///
 7593        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7594        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7595        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7596        OpenChannelNotes,
 7597        /// Mutes your microphone.
 7598        Mute,
 7599        /// Deafens yourself (mute both microphone and speakers).
 7600        Deafen,
 7601        /// Leaves the current call.
 7602        LeaveCall,
 7603        /// Shares the current project with collaborators.
 7604        ShareProject,
 7605        /// Shares your screen with collaborators.
 7606        ScreenShare,
 7607        /// Copies the current room name and session id for debugging purposes.
 7608        CopyRoomId,
 7609    ]
 7610);
 7611actions!(
 7612    zed,
 7613    [
 7614        /// Opens the Zed log file.
 7615        OpenLog,
 7616        /// Reveals the Zed log file in the system file manager.
 7617        RevealLogInFileManager
 7618    ]
 7619);
 7620
 7621async fn join_channel_internal(
 7622    channel_id: ChannelId,
 7623    app_state: &Arc<AppState>,
 7624    requesting_window: Option<WindowHandle<Workspace>>,
 7625    active_call: &Entity<ActiveCall>,
 7626    cx: &mut AsyncApp,
 7627) -> Result<bool> {
 7628    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7629        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7630            return (false, None);
 7631        };
 7632
 7633        let already_in_channel = room.channel_id() == Some(channel_id);
 7634        let should_prompt = room.is_sharing_project()
 7635            && !room.remote_participants().is_empty()
 7636            && !already_in_channel;
 7637        let open_room = if already_in_channel {
 7638            active_call.room().cloned()
 7639        } else {
 7640            None
 7641        };
 7642        (should_prompt, open_room)
 7643    })?;
 7644
 7645    if let Some(room) = open_room {
 7646        let task = room.update(cx, |room, cx| {
 7647            if let Some((project, host)) = room.most_active_project(cx) {
 7648                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7649            }
 7650
 7651            None
 7652        })?;
 7653        if let Some(task) = task {
 7654            task.await?;
 7655        }
 7656        return anyhow::Ok(true);
 7657    }
 7658
 7659    if should_prompt {
 7660        if let Some(workspace) = requesting_window {
 7661            let answer = workspace
 7662                .update(cx, |_, window, cx| {
 7663                    window.prompt(
 7664                        PromptLevel::Warning,
 7665                        "Do you want to switch channels?",
 7666                        Some("Leaving this call will unshare your current project."),
 7667                        &["Yes, Join Channel", "Cancel"],
 7668                        cx,
 7669                    )
 7670                })?
 7671                .await;
 7672
 7673            if answer == Ok(1) {
 7674                return Ok(false);
 7675            }
 7676        } else {
 7677            return Ok(false); // unreachable!() hopefully
 7678        }
 7679    }
 7680
 7681    let client = cx.update(|cx| active_call.read(cx).client())?;
 7682
 7683    let mut client_status = client.status();
 7684
 7685    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7686    'outer: loop {
 7687        let Some(status) = client_status.recv().await else {
 7688            anyhow::bail!("error connecting");
 7689        };
 7690
 7691        match status {
 7692            Status::Connecting
 7693            | Status::Authenticating
 7694            | Status::Authenticated
 7695            | Status::Reconnecting
 7696            | Status::Reauthenticating
 7697            | Status::Reauthenticated => continue,
 7698            Status::Connected { .. } => break 'outer,
 7699            Status::SignedOut | Status::AuthenticationError => {
 7700                return Err(ErrorCode::SignedOut.into());
 7701            }
 7702            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7703            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7704                return Err(ErrorCode::Disconnected.into());
 7705            }
 7706        }
 7707    }
 7708
 7709    let room = active_call
 7710        .update(cx, |active_call, cx| {
 7711            active_call.join_channel(channel_id, cx)
 7712        })?
 7713        .await?;
 7714
 7715    let Some(room) = room else {
 7716        return anyhow::Ok(true);
 7717    };
 7718
 7719    room.update(cx, |room, _| room.room_update_completed())?
 7720        .await;
 7721
 7722    let task = room.update(cx, |room, cx| {
 7723        if let Some((project, host)) = room.most_active_project(cx) {
 7724            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7725        }
 7726
 7727        // If you are the first to join a channel, see if you should share your project.
 7728        if room.remote_participants().is_empty()
 7729            && !room.local_participant_is_guest()
 7730            && let Some(workspace) = requesting_window
 7731        {
 7732            let project = workspace.update(cx, |workspace, _, cx| {
 7733                let project = workspace.project.read(cx);
 7734
 7735                if !CallSettings::get_global(cx).share_on_join {
 7736                    return None;
 7737                }
 7738
 7739                if (project.is_local() || project.is_via_remote_server())
 7740                    && project.visible_worktrees(cx).any(|tree| {
 7741                        tree.read(cx)
 7742                            .root_entry()
 7743                            .is_some_and(|entry| entry.is_dir())
 7744                    })
 7745                {
 7746                    Some(workspace.project.clone())
 7747                } else {
 7748                    None
 7749                }
 7750            });
 7751            if let Ok(Some(project)) = project {
 7752                return Some(cx.spawn(async move |room, cx| {
 7753                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7754                        .await?;
 7755                    Ok(())
 7756                }));
 7757            }
 7758        }
 7759
 7760        None
 7761    })?;
 7762    if let Some(task) = task {
 7763        task.await?;
 7764        return anyhow::Ok(true);
 7765    }
 7766    anyhow::Ok(false)
 7767}
 7768
 7769pub fn join_channel(
 7770    channel_id: ChannelId,
 7771    app_state: Arc<AppState>,
 7772    requesting_window: Option<WindowHandle<Workspace>>,
 7773    cx: &mut App,
 7774) -> Task<Result<()>> {
 7775    let active_call = ActiveCall::global(cx);
 7776    cx.spawn(async move |cx| {
 7777        let result =
 7778            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7779                .await;
 7780
 7781        // join channel succeeded, and opened a window
 7782        if matches!(result, Ok(true)) {
 7783            return anyhow::Ok(());
 7784        }
 7785
 7786        // find an existing workspace to focus and show call controls
 7787        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7788        if active_window.is_none() {
 7789            // no open workspaces, make one to show the error in (blergh)
 7790            let (window_handle, _) = cx
 7791                .update(|cx| {
 7792                    Workspace::new_local(
 7793                        vec![],
 7794                        app_state.clone(),
 7795                        requesting_window,
 7796                        None,
 7797                        None,
 7798                        cx,
 7799                    )
 7800                })?
 7801                .await?;
 7802
 7803            if result.is_ok() {
 7804                cx.update(|cx| {
 7805                    cx.dispatch_action(&OpenChannelNotes);
 7806                })
 7807                .log_err();
 7808            }
 7809
 7810            active_window = Some(window_handle);
 7811        }
 7812
 7813        if let Err(err) = result {
 7814            log::error!("failed to join channel: {}", err);
 7815            if let Some(active_window) = active_window {
 7816                active_window
 7817                    .update(cx, |_, window, cx| {
 7818                        let detail: SharedString = match err.error_code() {
 7819                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7820                            ErrorCode::UpgradeRequired => concat!(
 7821                                "Your are running an unsupported version of Zed. ",
 7822                                "Please update to continue."
 7823                            )
 7824                            .into(),
 7825                            ErrorCode::NoSuchChannel => concat!(
 7826                                "No matching channel was found. ",
 7827                                "Please check the link and try again."
 7828                            )
 7829                            .into(),
 7830                            ErrorCode::Forbidden => concat!(
 7831                                "This channel is private, and you do not have access. ",
 7832                                "Please ask someone to add you and try again."
 7833                            )
 7834                            .into(),
 7835                            ErrorCode::Disconnected => {
 7836                                "Please check your internet connection and try again.".into()
 7837                            }
 7838                            _ => format!("{}\n\nPlease try again.", err).into(),
 7839                        };
 7840                        window.prompt(
 7841                            PromptLevel::Critical,
 7842                            "Failed to join channel",
 7843                            Some(&detail),
 7844                            &["Ok"],
 7845                            cx,
 7846                        )
 7847                    })?
 7848                    .await
 7849                    .ok();
 7850            }
 7851        }
 7852
 7853        // return ok, we showed the error to the user.
 7854        anyhow::Ok(())
 7855    })
 7856}
 7857
 7858pub async fn get_any_active_workspace(
 7859    app_state: Arc<AppState>,
 7860    mut cx: AsyncApp,
 7861) -> anyhow::Result<WindowHandle<Workspace>> {
 7862    // find an existing workspace to focus and show call controls
 7863    let active_window = activate_any_workspace_window(&mut cx);
 7864    if active_window.is_none() {
 7865        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7866            .await?;
 7867    }
 7868    activate_any_workspace_window(&mut cx).context("could not open zed")
 7869}
 7870
 7871fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7872    cx.update(|cx| {
 7873        if let Some(workspace_window) = cx
 7874            .active_window()
 7875            .and_then(|window| window.downcast::<Workspace>())
 7876        {
 7877            return Some(workspace_window);
 7878        }
 7879
 7880        for window in cx.windows() {
 7881            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7882                workspace_window
 7883                    .update(cx, |_, window, _| window.activate_window())
 7884                    .ok();
 7885                return Some(workspace_window);
 7886            }
 7887        }
 7888        None
 7889    })
 7890    .ok()
 7891    .flatten()
 7892}
 7893
 7894pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7895    cx.windows()
 7896        .into_iter()
 7897        .filter_map(|window| window.downcast::<Workspace>())
 7898        .filter(|workspace| {
 7899            workspace
 7900                .read(cx)
 7901                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7902        })
 7903        .collect()
 7904}
 7905
 7906#[derive(Default)]
 7907pub struct OpenOptions {
 7908    pub visible: Option<OpenVisible>,
 7909    pub focus: Option<bool>,
 7910    pub open_new_workspace: Option<bool>,
 7911    pub prefer_focused_window: bool,
 7912    pub replace_window: Option<WindowHandle<Workspace>>,
 7913    pub env: Option<HashMap<String, String>>,
 7914}
 7915
 7916#[allow(clippy::type_complexity)]
 7917pub fn open_paths(
 7918    abs_paths: &[PathBuf],
 7919    app_state: Arc<AppState>,
 7920    open_options: OpenOptions,
 7921    cx: &mut App,
 7922) -> Task<
 7923    anyhow::Result<(
 7924        WindowHandle<Workspace>,
 7925        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7926    )>,
 7927> {
 7928    let abs_paths = abs_paths.to_vec();
 7929    let mut existing = None;
 7930    let mut best_match = None;
 7931    let mut open_visible = OpenVisible::All;
 7932    #[cfg(target_os = "windows")]
 7933    let wsl_path = abs_paths
 7934        .iter()
 7935        .find_map(|p| util::paths::WslPath::from_path(p));
 7936
 7937    cx.spawn(async move |cx| {
 7938        if open_options.open_new_workspace != Some(true) {
 7939            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7940            let all_metadatas = futures::future::join_all(all_paths)
 7941                .await
 7942                .into_iter()
 7943                .filter_map(|result| result.ok().flatten())
 7944                .collect::<Vec<_>>();
 7945
 7946            cx.update(|cx| {
 7947                for window in local_workspace_windows(cx) {
 7948                    if let Ok(workspace) = window.read(cx) {
 7949                        let m = workspace.project.read(cx).visibility_for_paths(
 7950                            &abs_paths,
 7951                            &all_metadatas,
 7952                            open_options.open_new_workspace == None,
 7953                            cx,
 7954                        );
 7955                        if m > best_match {
 7956                            existing = Some(window);
 7957                            best_match = m;
 7958                        } else if best_match.is_none()
 7959                            && open_options.open_new_workspace == Some(false)
 7960                        {
 7961                            existing = Some(window)
 7962                        }
 7963                    }
 7964                }
 7965            })?;
 7966
 7967            if open_options.open_new_workspace.is_none()
 7968                && (existing.is_none() || open_options.prefer_focused_window)
 7969                && all_metadatas.iter().all(|file| !file.is_dir)
 7970            {
 7971                cx.update(|cx| {
 7972                    if let Some(window) = cx
 7973                        .active_window()
 7974                        .and_then(|window| window.downcast::<Workspace>())
 7975                        && let Ok(workspace) = window.read(cx)
 7976                    {
 7977                        let project = workspace.project().read(cx);
 7978                        if project.is_local() && !project.is_via_collab() {
 7979                            existing = Some(window);
 7980                            open_visible = OpenVisible::None;
 7981                            return;
 7982                        }
 7983                    }
 7984                    for window in local_workspace_windows(cx) {
 7985                        if let Ok(workspace) = window.read(cx) {
 7986                            let project = workspace.project().read(cx);
 7987                            if project.is_via_collab() {
 7988                                continue;
 7989                            }
 7990                            existing = Some(window);
 7991                            open_visible = OpenVisible::None;
 7992                            break;
 7993                        }
 7994                    }
 7995                })?;
 7996            }
 7997        }
 7998
 7999        let result = if let Some(existing) = existing {
 8000            let open_task = existing
 8001                .update(cx, |workspace, window, cx| {
 8002                    window.activate_window();
 8003                    workspace.open_paths(
 8004                        abs_paths,
 8005                        OpenOptions {
 8006                            visible: Some(open_visible),
 8007                            ..Default::default()
 8008                        },
 8009                        None,
 8010                        window,
 8011                        cx,
 8012                    )
 8013                })?
 8014                .await;
 8015
 8016            _ = existing.update(cx, |workspace, _, cx| {
 8017                for item in open_task.iter().flatten() {
 8018                    if let Err(e) = item {
 8019                        workspace.show_error(&e, cx);
 8020                    }
 8021                }
 8022            });
 8023
 8024            Ok((existing, open_task))
 8025        } else {
 8026            cx.update(move |cx| {
 8027                Workspace::new_local(
 8028                    abs_paths,
 8029                    app_state.clone(),
 8030                    open_options.replace_window,
 8031                    open_options.env,
 8032                    None,
 8033                    cx,
 8034                )
 8035            })?
 8036            .await
 8037        };
 8038
 8039        #[cfg(target_os = "windows")]
 8040        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8041            && let Ok((workspace, _)) = &result
 8042        {
 8043            workspace
 8044                .update(cx, move |workspace, _window, cx| {
 8045                    struct OpenInWsl;
 8046                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8047                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8048                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8049                        cx.new(move |cx| {
 8050                            MessageNotification::new(msg, cx)
 8051                                .primary_message("Open in WSL")
 8052                                .primary_icon(IconName::FolderOpen)
 8053                                .primary_on_click(move |window, cx| {
 8054                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8055                                            distro: remote::WslConnectionOptions {
 8056                                                    distro_name: distro.clone(),
 8057                                                user: None,
 8058                                            },
 8059                                            paths: vec![path.clone().into()],
 8060                                        }), cx)
 8061                                })
 8062                        })
 8063                    });
 8064                })
 8065                .unwrap();
 8066        };
 8067        result
 8068    })
 8069}
 8070
 8071pub fn open_new(
 8072    open_options: OpenOptions,
 8073    app_state: Arc<AppState>,
 8074    cx: &mut App,
 8075    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8076) -> Task<anyhow::Result<()>> {
 8077    let task = Workspace::new_local(
 8078        Vec::new(),
 8079        app_state,
 8080        None,
 8081        open_options.env,
 8082        Some(Box::new(init)),
 8083        cx,
 8084    );
 8085    cx.spawn(async move |_cx| {
 8086        let (_workspace, _opened_paths) = task.await?;
 8087        // Init callback is called synchronously during workspace creation
 8088        Ok(())
 8089    })
 8090}
 8091
 8092pub fn create_and_open_local_file(
 8093    path: &'static Path,
 8094    window: &mut Window,
 8095    cx: &mut Context<Workspace>,
 8096    default_content: impl 'static + Send + FnOnce() -> Rope,
 8097) -> Task<Result<Box<dyn ItemHandle>>> {
 8098    cx.spawn_in(window, async move |workspace, cx| {
 8099        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8100        if !fs.is_file(path).await {
 8101            fs.create_file(path, Default::default()).await?;
 8102            fs.save(path, &default_content(), Default::default())
 8103                .await?;
 8104        }
 8105
 8106        let mut items = workspace
 8107            .update_in(cx, |workspace, window, cx| {
 8108                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8109                    workspace.open_paths(
 8110                        vec![path.to_path_buf()],
 8111                        OpenOptions {
 8112                            visible: Some(OpenVisible::None),
 8113                            ..Default::default()
 8114                        },
 8115                        None,
 8116                        window,
 8117                        cx,
 8118                    )
 8119                })
 8120            })?
 8121            .await?
 8122            .await;
 8123
 8124        let item = items.pop().flatten();
 8125        item.with_context(|| format!("path {path:?} is not a file"))?
 8126    })
 8127}
 8128
 8129pub fn open_remote_project_with_new_connection(
 8130    window: WindowHandle<Workspace>,
 8131    remote_connection: Arc<dyn RemoteConnection>,
 8132    cancel_rx: oneshot::Receiver<()>,
 8133    delegate: Arc<dyn RemoteClientDelegate>,
 8134    app_state: Arc<AppState>,
 8135    paths: Vec<PathBuf>,
 8136    cx: &mut App,
 8137) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8138    cx.spawn(async move |cx| {
 8139        let (workspace_id, serialized_workspace) =
 8140            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8141                .await?;
 8142
 8143        let session = match cx
 8144            .update(|cx| {
 8145                remote::RemoteClient::new(
 8146                    ConnectionIdentifier::Workspace(workspace_id.0),
 8147                    remote_connection,
 8148                    cancel_rx,
 8149                    delegate,
 8150                    cx,
 8151                )
 8152            })?
 8153            .await?
 8154        {
 8155            Some(result) => result,
 8156            None => return Ok(Vec::new()),
 8157        };
 8158
 8159        let project = cx.update(|cx| {
 8160            project::Project::remote(
 8161                session,
 8162                app_state.client.clone(),
 8163                app_state.node_runtime.clone(),
 8164                app_state.user_store.clone(),
 8165                app_state.languages.clone(),
 8166                app_state.fs.clone(),
 8167                true,
 8168                cx,
 8169            )
 8170        })?;
 8171
 8172        open_remote_project_inner(
 8173            project,
 8174            paths,
 8175            workspace_id,
 8176            serialized_workspace,
 8177            app_state,
 8178            window,
 8179            cx,
 8180        )
 8181        .await
 8182    })
 8183}
 8184
 8185pub fn open_remote_project_with_existing_connection(
 8186    connection_options: RemoteConnectionOptions,
 8187    project: Entity<Project>,
 8188    paths: Vec<PathBuf>,
 8189    app_state: Arc<AppState>,
 8190    window: WindowHandle<Workspace>,
 8191    cx: &mut AsyncApp,
 8192) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8193    cx.spawn(async move |cx| {
 8194        let (workspace_id, serialized_workspace) =
 8195            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8196
 8197        open_remote_project_inner(
 8198            project,
 8199            paths,
 8200            workspace_id,
 8201            serialized_workspace,
 8202            app_state,
 8203            window,
 8204            cx,
 8205        )
 8206        .await
 8207    })
 8208}
 8209
 8210async fn open_remote_project_inner(
 8211    project: Entity<Project>,
 8212    paths: Vec<PathBuf>,
 8213    workspace_id: WorkspaceId,
 8214    serialized_workspace: Option<SerializedWorkspace>,
 8215    app_state: Arc<AppState>,
 8216    window: WindowHandle<Workspace>,
 8217    cx: &mut AsyncApp,
 8218) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8219    let toolchains = DB.toolchains(workspace_id).await?;
 8220    for (toolchain, worktree_id, path) in toolchains {
 8221        project
 8222            .update(cx, |this, cx| {
 8223                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8224            })?
 8225            .await;
 8226    }
 8227    let mut project_paths_to_open = vec![];
 8228    let mut project_path_errors = vec![];
 8229
 8230    for path in paths {
 8231        let result = cx
 8232            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8233            .await;
 8234        match result {
 8235            Ok((_, project_path)) => {
 8236                project_paths_to_open.push((path.clone(), Some(project_path)));
 8237            }
 8238            Err(error) => {
 8239                project_path_errors.push(error);
 8240            }
 8241        };
 8242    }
 8243
 8244    if project_paths_to_open.is_empty() {
 8245        return Err(project_path_errors.pop().context("no paths given")?);
 8246    }
 8247
 8248    if let Some(detach_session_task) = window
 8249        .update(cx, |_workspace, window, cx| {
 8250            cx.spawn_in(window, async move |this, cx| {
 8251                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8252            })
 8253        })
 8254        .ok()
 8255    {
 8256        detach_session_task.await.ok();
 8257    }
 8258
 8259    cx.update_window(window.into(), |_, window, cx| {
 8260        window.replace_root(cx, |window, cx| {
 8261            telemetry::event!("SSH Project Opened");
 8262
 8263            let mut workspace =
 8264                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8265            workspace.update_history(cx);
 8266
 8267            if let Some(ref serialized) = serialized_workspace {
 8268                workspace.centered_layout = serialized.centered_layout;
 8269            }
 8270
 8271            workspace
 8272        });
 8273    })?;
 8274
 8275    let items = window
 8276        .update(cx, |_, window, cx| {
 8277            window.activate_window();
 8278            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8279        })?
 8280        .await?;
 8281
 8282    window.update(cx, |workspace, _, cx| {
 8283        for error in project_path_errors {
 8284            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8285                if let Some(path) = error.error_tag("path") {
 8286                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8287                }
 8288            } else {
 8289                workspace.show_error(&error, cx)
 8290            }
 8291        }
 8292    })?;
 8293
 8294    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8295}
 8296
 8297fn deserialize_remote_project(
 8298    connection_options: RemoteConnectionOptions,
 8299    paths: Vec<PathBuf>,
 8300    cx: &AsyncApp,
 8301) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8302    cx.background_spawn(async move {
 8303        let remote_connection_id = persistence::DB
 8304            .get_or_create_remote_connection(connection_options)
 8305            .await?;
 8306
 8307        let serialized_workspace =
 8308            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8309
 8310        let workspace_id = if let Some(workspace_id) =
 8311            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8312        {
 8313            workspace_id
 8314        } else {
 8315            persistence::DB.next_id().await?
 8316        };
 8317
 8318        Ok((workspace_id, serialized_workspace))
 8319    })
 8320}
 8321
 8322pub fn join_in_room_project(
 8323    project_id: u64,
 8324    follow_user_id: u64,
 8325    app_state: Arc<AppState>,
 8326    cx: &mut App,
 8327) -> Task<Result<()>> {
 8328    let windows = cx.windows();
 8329    cx.spawn(async move |cx| {
 8330        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8331            window_handle
 8332                .downcast::<Workspace>()
 8333                .and_then(|window_handle| {
 8334                    window_handle
 8335                        .update(cx, |workspace, _window, cx| {
 8336                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8337                                Some(window_handle)
 8338                            } else {
 8339                                None
 8340                            }
 8341                        })
 8342                        .unwrap_or(None)
 8343                })
 8344        });
 8345
 8346        let workspace = if let Some(existing_workspace) = existing_workspace {
 8347            existing_workspace
 8348        } else {
 8349            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8350            let room = active_call
 8351                .read_with(cx, |call, _| call.room().cloned())?
 8352                .context("not in a call")?;
 8353            let project = room
 8354                .update(cx, |room, cx| {
 8355                    room.join_project(
 8356                        project_id,
 8357                        app_state.languages.clone(),
 8358                        app_state.fs.clone(),
 8359                        cx,
 8360                    )
 8361                })?
 8362                .await?;
 8363
 8364            let window_bounds_override = window_bounds_env_override();
 8365            cx.update(|cx| {
 8366                let mut options = (app_state.build_window_options)(None, cx);
 8367                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8368                cx.open_window(options, |window, cx| {
 8369                    cx.new(|cx| {
 8370                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8371                    })
 8372                })
 8373            })??
 8374        };
 8375
 8376        workspace.update(cx, |workspace, window, cx| {
 8377            cx.activate(true);
 8378            window.activate_window();
 8379
 8380            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8381                let follow_peer_id = room
 8382                    .read(cx)
 8383                    .remote_participants()
 8384                    .iter()
 8385                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8386                    .map(|(_, p)| p.peer_id)
 8387                    .or_else(|| {
 8388                        // If we couldn't follow the given user, follow the host instead.
 8389                        let collaborator = workspace
 8390                            .project()
 8391                            .read(cx)
 8392                            .collaborators()
 8393                            .values()
 8394                            .find(|collaborator| collaborator.is_host)?;
 8395                        Some(collaborator.peer_id)
 8396                    });
 8397
 8398                if let Some(follow_peer_id) = follow_peer_id {
 8399                    workspace.follow(follow_peer_id, window, cx);
 8400                }
 8401            }
 8402        })?;
 8403
 8404        anyhow::Ok(())
 8405    })
 8406}
 8407
 8408pub fn reload(cx: &mut App) {
 8409    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8410    let mut workspace_windows = cx
 8411        .windows()
 8412        .into_iter()
 8413        .filter_map(|window| window.downcast::<Workspace>())
 8414        .collect::<Vec<_>>();
 8415
 8416    // If multiple windows have unsaved changes, and need a save prompt,
 8417    // prompt in the active window before switching to a different window.
 8418    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8419
 8420    let mut prompt = None;
 8421    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8422        prompt = window
 8423            .update(cx, |_, window, cx| {
 8424                window.prompt(
 8425                    PromptLevel::Info,
 8426                    "Are you sure you want to restart?",
 8427                    None,
 8428                    &["Restart", "Cancel"],
 8429                    cx,
 8430                )
 8431            })
 8432            .ok();
 8433    }
 8434
 8435    cx.spawn(async move |cx| {
 8436        if let Some(prompt) = prompt {
 8437            let answer = prompt.await?;
 8438            if answer != 0 {
 8439                return Ok(());
 8440            }
 8441        }
 8442
 8443        // If the user cancels any save prompt, then keep the app open.
 8444        for window in workspace_windows {
 8445            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8446                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8447            }) && !should_close.await?
 8448            {
 8449                return Ok(());
 8450            }
 8451        }
 8452        cx.update(|cx| cx.restart())
 8453    })
 8454    .detach_and_log_err(cx);
 8455}
 8456
 8457fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8458    let mut parts = value.split(',');
 8459    let x: usize = parts.next()?.parse().ok()?;
 8460    let y: usize = parts.next()?.parse().ok()?;
 8461    Some(point(px(x as f32), px(y as f32)))
 8462}
 8463
 8464fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8465    let mut parts = value.split(',');
 8466    let width: usize = parts.next()?.parse().ok()?;
 8467    let height: usize = parts.next()?.parse().ok()?;
 8468    Some(size(px(width as f32), px(height as f32)))
 8469}
 8470
 8471/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8472pub fn client_side_decorations(
 8473    element: impl IntoElement,
 8474    window: &mut Window,
 8475    cx: &mut App,
 8476) -> Stateful<Div> {
 8477    const BORDER_SIZE: Pixels = px(1.0);
 8478    let decorations = window.window_decorations();
 8479
 8480    match decorations {
 8481        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8482        Decorations::Server => window.set_client_inset(px(0.0)),
 8483    }
 8484
 8485    struct GlobalResizeEdge(ResizeEdge);
 8486    impl Global for GlobalResizeEdge {}
 8487
 8488    div()
 8489        .id("window-backdrop")
 8490        .bg(transparent_black())
 8491        .map(|div| match decorations {
 8492            Decorations::Server => div,
 8493            Decorations::Client { tiling, .. } => div
 8494                .when(!(tiling.top || tiling.right), |div| {
 8495                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8496                })
 8497                .when(!(tiling.top || tiling.left), |div| {
 8498                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8499                })
 8500                .when(!(tiling.bottom || tiling.right), |div| {
 8501                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8502                })
 8503                .when(!(tiling.bottom || tiling.left), |div| {
 8504                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8505                })
 8506                .when(!tiling.top, |div| {
 8507                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8508                })
 8509                .when(!tiling.bottom, |div| {
 8510                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8511                })
 8512                .when(!tiling.left, |div| {
 8513                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8514                })
 8515                .when(!tiling.right, |div| {
 8516                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8517                })
 8518                .on_mouse_move(move |e, window, cx| {
 8519                    let size = window.window_bounds().get_bounds().size;
 8520                    let pos = e.position;
 8521
 8522                    let new_edge =
 8523                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8524
 8525                    let edge = cx.try_global::<GlobalResizeEdge>();
 8526                    if new_edge != edge.map(|edge| edge.0) {
 8527                        window
 8528                            .window_handle()
 8529                            .update(cx, |workspace, _, cx| {
 8530                                cx.notify(workspace.entity_id());
 8531                            })
 8532                            .ok();
 8533                    }
 8534                })
 8535                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8536                    let size = window.window_bounds().get_bounds().size;
 8537                    let pos = e.position;
 8538
 8539                    let edge = match resize_edge(
 8540                        pos,
 8541                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8542                        size,
 8543                        tiling,
 8544                    ) {
 8545                        Some(value) => value,
 8546                        None => return,
 8547                    };
 8548
 8549                    window.start_window_resize(edge);
 8550                }),
 8551        })
 8552        .size_full()
 8553        .child(
 8554            div()
 8555                .cursor(CursorStyle::Arrow)
 8556                .map(|div| match decorations {
 8557                    Decorations::Server => div,
 8558                    Decorations::Client { tiling } => div
 8559                        .border_color(cx.theme().colors().border)
 8560                        .when(!(tiling.top || tiling.right), |div| {
 8561                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8562                        })
 8563                        .when(!(tiling.top || tiling.left), |div| {
 8564                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8565                        })
 8566                        .when(!(tiling.bottom || tiling.right), |div| {
 8567                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8568                        })
 8569                        .when(!(tiling.bottom || tiling.left), |div| {
 8570                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8571                        })
 8572                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8573                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8574                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8575                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8576                        .when(!tiling.is_tiled(), |div| {
 8577                            div.shadow(vec![gpui::BoxShadow {
 8578                                color: Hsla {
 8579                                    h: 0.,
 8580                                    s: 0.,
 8581                                    l: 0.,
 8582                                    a: 0.4,
 8583                                },
 8584                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8585                                spread_radius: px(0.),
 8586                                offset: point(px(0.0), px(0.0)),
 8587                            }])
 8588                        }),
 8589                })
 8590                .on_mouse_move(|_e, _, cx| {
 8591                    cx.stop_propagation();
 8592                })
 8593                .size_full()
 8594                .child(element),
 8595        )
 8596        .map(|div| match decorations {
 8597            Decorations::Server => div,
 8598            Decorations::Client { tiling, .. } => div.child(
 8599                canvas(
 8600                    |_bounds, window, _| {
 8601                        window.insert_hitbox(
 8602                            Bounds::new(
 8603                                point(px(0.0), px(0.0)),
 8604                                window.window_bounds().get_bounds().size,
 8605                            ),
 8606                            HitboxBehavior::Normal,
 8607                        )
 8608                    },
 8609                    move |_bounds, hitbox, window, cx| {
 8610                        let mouse = window.mouse_position();
 8611                        let size = window.window_bounds().get_bounds().size;
 8612                        let Some(edge) =
 8613                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8614                        else {
 8615                            return;
 8616                        };
 8617                        cx.set_global(GlobalResizeEdge(edge));
 8618                        window.set_cursor_style(
 8619                            match edge {
 8620                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8621                                ResizeEdge::Left | ResizeEdge::Right => {
 8622                                    CursorStyle::ResizeLeftRight
 8623                                }
 8624                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8625                                    CursorStyle::ResizeUpLeftDownRight
 8626                                }
 8627                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8628                                    CursorStyle::ResizeUpRightDownLeft
 8629                                }
 8630                            },
 8631                            &hitbox,
 8632                        );
 8633                    },
 8634                )
 8635                .size_full()
 8636                .absolute(),
 8637            ),
 8638        })
 8639}
 8640
 8641fn resize_edge(
 8642    pos: Point<Pixels>,
 8643    shadow_size: Pixels,
 8644    window_size: Size<Pixels>,
 8645    tiling: Tiling,
 8646) -> Option<ResizeEdge> {
 8647    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8648    if bounds.contains(&pos) {
 8649        return None;
 8650    }
 8651
 8652    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8653    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8654    if !tiling.top && top_left_bounds.contains(&pos) {
 8655        return Some(ResizeEdge::TopLeft);
 8656    }
 8657
 8658    let top_right_bounds = Bounds::new(
 8659        Point::new(window_size.width - corner_size.width, px(0.)),
 8660        corner_size,
 8661    );
 8662    if !tiling.top && top_right_bounds.contains(&pos) {
 8663        return Some(ResizeEdge::TopRight);
 8664    }
 8665
 8666    let bottom_left_bounds = Bounds::new(
 8667        Point::new(px(0.), window_size.height - corner_size.height),
 8668        corner_size,
 8669    );
 8670    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8671        return Some(ResizeEdge::BottomLeft);
 8672    }
 8673
 8674    let bottom_right_bounds = Bounds::new(
 8675        Point::new(
 8676            window_size.width - corner_size.width,
 8677            window_size.height - corner_size.height,
 8678        ),
 8679        corner_size,
 8680    );
 8681    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8682        return Some(ResizeEdge::BottomRight);
 8683    }
 8684
 8685    if !tiling.top && pos.y < shadow_size {
 8686        Some(ResizeEdge::Top)
 8687    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8688        Some(ResizeEdge::Bottom)
 8689    } else if !tiling.left && pos.x < shadow_size {
 8690        Some(ResizeEdge::Left)
 8691    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8692        Some(ResizeEdge::Right)
 8693    } else {
 8694        None
 8695    }
 8696}
 8697
 8698fn join_pane_into_active(
 8699    active_pane: &Entity<Pane>,
 8700    pane: &Entity<Pane>,
 8701    window: &mut Window,
 8702    cx: &mut App,
 8703) {
 8704    if pane == active_pane {
 8705    } else if pane.read(cx).items_len() == 0 {
 8706        pane.update(cx, |_, cx| {
 8707            cx.emit(pane::Event::Remove {
 8708                focus_on_pane: None,
 8709            });
 8710        })
 8711    } else {
 8712        move_all_items(pane, active_pane, window, cx);
 8713    }
 8714}
 8715
 8716fn move_all_items(
 8717    from_pane: &Entity<Pane>,
 8718    to_pane: &Entity<Pane>,
 8719    window: &mut Window,
 8720    cx: &mut App,
 8721) {
 8722    let destination_is_different = from_pane != to_pane;
 8723    let mut moved_items = 0;
 8724    for (item_ix, item_handle) in from_pane
 8725        .read(cx)
 8726        .items()
 8727        .enumerate()
 8728        .map(|(ix, item)| (ix, item.clone()))
 8729        .collect::<Vec<_>>()
 8730    {
 8731        let ix = item_ix - moved_items;
 8732        if destination_is_different {
 8733            // Close item from previous pane
 8734            from_pane.update(cx, |source, cx| {
 8735                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8736            });
 8737            moved_items += 1;
 8738        }
 8739
 8740        // This automatically removes duplicate items in the pane
 8741        to_pane.update(cx, |destination, cx| {
 8742            destination.add_item(item_handle, true, true, None, window, cx);
 8743            window.focus(&destination.focus_handle(cx), cx)
 8744        });
 8745    }
 8746}
 8747
 8748pub fn move_item(
 8749    source: &Entity<Pane>,
 8750    destination: &Entity<Pane>,
 8751    item_id_to_move: EntityId,
 8752    destination_index: usize,
 8753    activate: bool,
 8754    window: &mut Window,
 8755    cx: &mut App,
 8756) {
 8757    let Some((item_ix, item_handle)) = source
 8758        .read(cx)
 8759        .items()
 8760        .enumerate()
 8761        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8762        .map(|(ix, item)| (ix, item.clone()))
 8763    else {
 8764        // Tab was closed during drag
 8765        return;
 8766    };
 8767
 8768    if source != destination {
 8769        // Close item from previous pane
 8770        source.update(cx, |source, cx| {
 8771            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8772        });
 8773    }
 8774
 8775    // This automatically removes duplicate items in the pane
 8776    destination.update(cx, |destination, cx| {
 8777        destination.add_item_inner(
 8778            item_handle,
 8779            activate,
 8780            activate,
 8781            activate,
 8782            Some(destination_index),
 8783            window,
 8784            cx,
 8785        );
 8786        if activate {
 8787            window.focus(&destination.focus_handle(cx), cx)
 8788        }
 8789    });
 8790}
 8791
 8792pub fn move_active_item(
 8793    source: &Entity<Pane>,
 8794    destination: &Entity<Pane>,
 8795    focus_destination: bool,
 8796    close_if_empty: bool,
 8797    window: &mut Window,
 8798    cx: &mut App,
 8799) {
 8800    if source == destination {
 8801        return;
 8802    }
 8803    let Some(active_item) = source.read(cx).active_item() else {
 8804        return;
 8805    };
 8806    source.update(cx, |source_pane, cx| {
 8807        let item_id = active_item.item_id();
 8808        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8809        destination.update(cx, |target_pane, cx| {
 8810            target_pane.add_item(
 8811                active_item,
 8812                focus_destination,
 8813                focus_destination,
 8814                Some(target_pane.items_len()),
 8815                window,
 8816                cx,
 8817            );
 8818        });
 8819    });
 8820}
 8821
 8822pub fn clone_active_item(
 8823    workspace_id: Option<WorkspaceId>,
 8824    source: &Entity<Pane>,
 8825    destination: &Entity<Pane>,
 8826    focus_destination: bool,
 8827    window: &mut Window,
 8828    cx: &mut App,
 8829) {
 8830    if source == destination {
 8831        return;
 8832    }
 8833    let Some(active_item) = source.read(cx).active_item() else {
 8834        return;
 8835    };
 8836    if !active_item.can_split(cx) {
 8837        return;
 8838    }
 8839    let destination = destination.downgrade();
 8840    let task = active_item.clone_on_split(workspace_id, window, cx);
 8841    window
 8842        .spawn(cx, async move |cx| {
 8843            let Some(clone) = task.await else {
 8844                return;
 8845            };
 8846            destination
 8847                .update_in(cx, |target_pane, window, cx| {
 8848                    target_pane.add_item(
 8849                        clone,
 8850                        focus_destination,
 8851                        focus_destination,
 8852                        Some(target_pane.items_len()),
 8853                        window,
 8854                        cx,
 8855                    );
 8856                })
 8857                .log_err();
 8858        })
 8859        .detach();
 8860}
 8861
 8862#[derive(Debug)]
 8863pub struct WorkspacePosition {
 8864    pub window_bounds: Option<WindowBounds>,
 8865    pub display: Option<Uuid>,
 8866    pub centered_layout: bool,
 8867}
 8868
 8869pub fn remote_workspace_position_from_db(
 8870    connection_options: RemoteConnectionOptions,
 8871    paths_to_open: &[PathBuf],
 8872    cx: &App,
 8873) -> Task<Result<WorkspacePosition>> {
 8874    let paths = paths_to_open.to_vec();
 8875
 8876    cx.background_spawn(async move {
 8877        let remote_connection_id = persistence::DB
 8878            .get_or_create_remote_connection(connection_options)
 8879            .await
 8880            .context("fetching serialized ssh project")?;
 8881        let serialized_workspace =
 8882            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8883
 8884        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8885            (Some(WindowBounds::Windowed(bounds)), None)
 8886        } else {
 8887            let restorable_bounds = serialized_workspace
 8888                .as_ref()
 8889                .and_then(|workspace| {
 8890                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8891                })
 8892                .or_else(|| persistence::read_default_window_bounds());
 8893
 8894            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8895                (Some(serialized_bounds), Some(serialized_display))
 8896            } else {
 8897                (None, None)
 8898            }
 8899        };
 8900
 8901        let centered_layout = serialized_workspace
 8902            .as_ref()
 8903            .map(|w| w.centered_layout)
 8904            .unwrap_or(false);
 8905
 8906        Ok(WorkspacePosition {
 8907            window_bounds,
 8908            display,
 8909            centered_layout,
 8910        })
 8911    })
 8912}
 8913
 8914pub fn with_active_or_new_workspace(
 8915    cx: &mut App,
 8916    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8917) {
 8918    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8919        Some(workspace) => {
 8920            cx.defer(move |cx| {
 8921                workspace
 8922                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8923                    .log_err();
 8924            });
 8925        }
 8926        None => {
 8927            let app_state = AppState::global(cx);
 8928            if let Some(app_state) = app_state.upgrade() {
 8929                open_new(
 8930                    OpenOptions::default(),
 8931                    app_state,
 8932                    cx,
 8933                    move |workspace, window, cx| f(workspace, window, cx),
 8934                )
 8935                .detach_and_log_err(cx);
 8936            }
 8937        }
 8938    }
 8939}
 8940
 8941#[cfg(test)]
 8942mod tests {
 8943    use std::{cell::RefCell, rc::Rc};
 8944
 8945    use super::*;
 8946    use crate::{
 8947        dock::{PanelEvent, test::TestPanel},
 8948        item::{
 8949            ItemBufferKind, ItemEvent,
 8950            test::{TestItem, TestProjectItem},
 8951        },
 8952    };
 8953    use fs::FakeFs;
 8954    use gpui::{
 8955        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8956        UpdateGlobal, VisualTestContext, px,
 8957    };
 8958    use project::{Project, ProjectEntryId};
 8959    use serde_json::json;
 8960    use settings::SettingsStore;
 8961    use util::rel_path::rel_path;
 8962
 8963    #[gpui::test]
 8964    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8965        init_test(cx);
 8966
 8967        let fs = FakeFs::new(cx.executor());
 8968        let project = Project::test(fs, [], cx).await;
 8969        let (workspace, cx) =
 8970            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8971
 8972        // Adding an item with no ambiguity renders the tab without detail.
 8973        let item1 = cx.new(|cx| {
 8974            let mut item = TestItem::new(cx);
 8975            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8976            item
 8977        });
 8978        workspace.update_in(cx, |workspace, window, cx| {
 8979            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8980        });
 8981        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8982
 8983        // Adding an item that creates ambiguity increases the level of detail on
 8984        // both tabs.
 8985        let item2 = cx.new_window_entity(|_window, cx| {
 8986            let mut item = TestItem::new(cx);
 8987            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8988            item
 8989        });
 8990        workspace.update_in(cx, |workspace, window, cx| {
 8991            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8992        });
 8993        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8994        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8995
 8996        // Adding an item that creates ambiguity increases the level of detail only
 8997        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8998        // we stop at the highest detail available.
 8999        let item3 = cx.new(|cx| {
 9000            let mut item = TestItem::new(cx);
 9001            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9002            item
 9003        });
 9004        workspace.update_in(cx, |workspace, window, cx| {
 9005            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9006        });
 9007        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9008        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9009        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9010    }
 9011
 9012    #[gpui::test]
 9013    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9014        init_test(cx);
 9015
 9016        let fs = FakeFs::new(cx.executor());
 9017        fs.insert_tree(
 9018            "/root1",
 9019            json!({
 9020                "one.txt": "",
 9021                "two.txt": "",
 9022            }),
 9023        )
 9024        .await;
 9025        fs.insert_tree(
 9026            "/root2",
 9027            json!({
 9028                "three.txt": "",
 9029            }),
 9030        )
 9031        .await;
 9032
 9033        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9034        let (workspace, cx) =
 9035            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9036        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9037        let worktree_id = project.update(cx, |project, cx| {
 9038            project.worktrees(cx).next().unwrap().read(cx).id()
 9039        });
 9040
 9041        let item1 = cx.new(|cx| {
 9042            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9043        });
 9044        let item2 = cx.new(|cx| {
 9045            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9046        });
 9047
 9048        // Add an item to an empty pane
 9049        workspace.update_in(cx, |workspace, window, cx| {
 9050            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9051        });
 9052        project.update(cx, |project, cx| {
 9053            assert_eq!(
 9054                project.active_entry(),
 9055                project
 9056                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9057                    .map(|e| e.id)
 9058            );
 9059        });
 9060        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9061
 9062        // Add a second item to a non-empty pane
 9063        workspace.update_in(cx, |workspace, window, cx| {
 9064            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9065        });
 9066        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9067        project.update(cx, |project, cx| {
 9068            assert_eq!(
 9069                project.active_entry(),
 9070                project
 9071                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9072                    .map(|e| e.id)
 9073            );
 9074        });
 9075
 9076        // Close the active item
 9077        pane.update_in(cx, |pane, window, cx| {
 9078            pane.close_active_item(&Default::default(), window, cx)
 9079        })
 9080        .await
 9081        .unwrap();
 9082        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9083        project.update(cx, |project, cx| {
 9084            assert_eq!(
 9085                project.active_entry(),
 9086                project
 9087                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9088                    .map(|e| e.id)
 9089            );
 9090        });
 9091
 9092        // Add a project folder
 9093        project
 9094            .update(cx, |project, cx| {
 9095                project.find_or_create_worktree("root2", true, cx)
 9096            })
 9097            .await
 9098            .unwrap();
 9099        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9100
 9101        // Remove a project folder
 9102        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9103        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9104    }
 9105
 9106    #[gpui::test]
 9107    async fn test_close_window(cx: &mut TestAppContext) {
 9108        init_test(cx);
 9109
 9110        let fs = FakeFs::new(cx.executor());
 9111        fs.insert_tree("/root", json!({ "one": "" })).await;
 9112
 9113        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9114        let (workspace, cx) =
 9115            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9116
 9117        // When there are no dirty items, there's nothing to do.
 9118        let item1 = cx.new(TestItem::new);
 9119        workspace.update_in(cx, |w, window, cx| {
 9120            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9121        });
 9122        let task = workspace.update_in(cx, |w, window, cx| {
 9123            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9124        });
 9125        assert!(task.await.unwrap());
 9126
 9127        // When there are dirty untitled items, prompt to save each one. If the user
 9128        // cancels any prompt, then abort.
 9129        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9130        let item3 = cx.new(|cx| {
 9131            TestItem::new(cx)
 9132                .with_dirty(true)
 9133                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9134        });
 9135        workspace.update_in(cx, |w, window, cx| {
 9136            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9137            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9138        });
 9139        let task = workspace.update_in(cx, |w, window, cx| {
 9140            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9141        });
 9142        cx.executor().run_until_parked();
 9143        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9144        cx.executor().run_until_parked();
 9145        assert!(!cx.has_pending_prompt());
 9146        assert!(!task.await.unwrap());
 9147    }
 9148
 9149    #[gpui::test]
 9150    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9151        init_test(cx);
 9152
 9153        // Register TestItem as a serializable item
 9154        cx.update(|cx| {
 9155            register_serializable_item::<TestItem>(cx);
 9156        });
 9157
 9158        let fs = FakeFs::new(cx.executor());
 9159        fs.insert_tree("/root", json!({ "one": "" })).await;
 9160
 9161        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9162        let (workspace, cx) =
 9163            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9164
 9165        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9166        let item1 = cx.new(|cx| {
 9167            TestItem::new(cx)
 9168                .with_dirty(true)
 9169                .with_serialize(|| Some(Task::ready(Ok(()))))
 9170        });
 9171        let item2 = cx.new(|cx| {
 9172            TestItem::new(cx)
 9173                .with_dirty(true)
 9174                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9175                .with_serialize(|| Some(Task::ready(Ok(()))))
 9176        });
 9177        workspace.update_in(cx, |w, window, cx| {
 9178            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9179            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9180        });
 9181        let task = workspace.update_in(cx, |w, window, cx| {
 9182            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9183        });
 9184        assert!(task.await.unwrap());
 9185    }
 9186
 9187    #[gpui::test]
 9188    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9189        init_test(cx);
 9190
 9191        let fs = FakeFs::new(cx.executor());
 9192
 9193        let project = Project::test(fs, None, cx).await;
 9194        let (workspace, cx) =
 9195            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9196
 9197        let item1 = cx.new(|cx| {
 9198            TestItem::new(cx)
 9199                .with_dirty(true)
 9200                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9201        });
 9202        let item2 = cx.new(|cx| {
 9203            TestItem::new(cx)
 9204                .with_dirty(true)
 9205                .with_conflict(true)
 9206                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9207        });
 9208        let item3 = cx.new(|cx| {
 9209            TestItem::new(cx)
 9210                .with_dirty(true)
 9211                .with_conflict(true)
 9212                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9213        });
 9214        let item4 = cx.new(|cx| {
 9215            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9216                let project_item = TestProjectItem::new_untitled(cx);
 9217                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9218                project_item
 9219            }])
 9220        });
 9221        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9222            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9223            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9224            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9225            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9226            workspace.active_pane().clone()
 9227        });
 9228
 9229        let close_items = pane.update_in(cx, |pane, window, cx| {
 9230            pane.activate_item(1, true, true, window, cx);
 9231            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9232            let item1_id = item1.item_id();
 9233            let item3_id = item3.item_id();
 9234            let item4_id = item4.item_id();
 9235            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9236                [item1_id, item3_id, item4_id].contains(&id)
 9237            })
 9238        });
 9239        cx.executor().run_until_parked();
 9240
 9241        assert!(cx.has_pending_prompt());
 9242        cx.simulate_prompt_answer("Save all");
 9243
 9244        cx.executor().run_until_parked();
 9245
 9246        // Item 1 is saved. There's a prompt to save item 3.
 9247        pane.update(cx, |pane, cx| {
 9248            assert_eq!(item1.read(cx).save_count, 1);
 9249            assert_eq!(item1.read(cx).save_as_count, 0);
 9250            assert_eq!(item1.read(cx).reload_count, 0);
 9251            assert_eq!(pane.items_len(), 3);
 9252            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9253        });
 9254        assert!(cx.has_pending_prompt());
 9255
 9256        // Cancel saving item 3.
 9257        cx.simulate_prompt_answer("Discard");
 9258        cx.executor().run_until_parked();
 9259
 9260        // Item 3 is reloaded. There's a prompt to save item 4.
 9261        pane.update(cx, |pane, cx| {
 9262            assert_eq!(item3.read(cx).save_count, 0);
 9263            assert_eq!(item3.read(cx).save_as_count, 0);
 9264            assert_eq!(item3.read(cx).reload_count, 1);
 9265            assert_eq!(pane.items_len(), 2);
 9266            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9267        });
 9268
 9269        // There's a prompt for a path for item 4.
 9270        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9271        close_items.await.unwrap();
 9272
 9273        // The requested items are closed.
 9274        pane.update(cx, |pane, cx| {
 9275            assert_eq!(item4.read(cx).save_count, 0);
 9276            assert_eq!(item4.read(cx).save_as_count, 1);
 9277            assert_eq!(item4.read(cx).reload_count, 0);
 9278            assert_eq!(pane.items_len(), 1);
 9279            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9280        });
 9281    }
 9282
 9283    #[gpui::test]
 9284    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9285        init_test(cx);
 9286
 9287        let fs = FakeFs::new(cx.executor());
 9288        let project = Project::test(fs, [], cx).await;
 9289        let (workspace, cx) =
 9290            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9291
 9292        // Create several workspace items with single project entries, and two
 9293        // workspace items with multiple project entries.
 9294        let single_entry_items = (0..=4)
 9295            .map(|project_entry_id| {
 9296                cx.new(|cx| {
 9297                    TestItem::new(cx)
 9298                        .with_dirty(true)
 9299                        .with_project_items(&[dirty_project_item(
 9300                            project_entry_id,
 9301                            &format!("{project_entry_id}.txt"),
 9302                            cx,
 9303                        )])
 9304                })
 9305            })
 9306            .collect::<Vec<_>>();
 9307        let item_2_3 = cx.new(|cx| {
 9308            TestItem::new(cx)
 9309                .with_dirty(true)
 9310                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9311                .with_project_items(&[
 9312                    single_entry_items[2].read(cx).project_items[0].clone(),
 9313                    single_entry_items[3].read(cx).project_items[0].clone(),
 9314                ])
 9315        });
 9316        let item_3_4 = cx.new(|cx| {
 9317            TestItem::new(cx)
 9318                .with_dirty(true)
 9319                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9320                .with_project_items(&[
 9321                    single_entry_items[3].read(cx).project_items[0].clone(),
 9322                    single_entry_items[4].read(cx).project_items[0].clone(),
 9323                ])
 9324        });
 9325
 9326        // Create two panes that contain the following project entries:
 9327        //   left pane:
 9328        //     multi-entry items:   (2, 3)
 9329        //     single-entry items:  0, 2, 3, 4
 9330        //   right pane:
 9331        //     single-entry items:  4, 1
 9332        //     multi-entry items:   (3, 4)
 9333        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9334            let left_pane = workspace.active_pane().clone();
 9335            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9336            workspace.add_item_to_active_pane(
 9337                single_entry_items[0].boxed_clone(),
 9338                None,
 9339                true,
 9340                window,
 9341                cx,
 9342            );
 9343            workspace.add_item_to_active_pane(
 9344                single_entry_items[2].boxed_clone(),
 9345                None,
 9346                true,
 9347                window,
 9348                cx,
 9349            );
 9350            workspace.add_item_to_active_pane(
 9351                single_entry_items[3].boxed_clone(),
 9352                None,
 9353                true,
 9354                window,
 9355                cx,
 9356            );
 9357            workspace.add_item_to_active_pane(
 9358                single_entry_items[4].boxed_clone(),
 9359                None,
 9360                true,
 9361                window,
 9362                cx,
 9363            );
 9364
 9365            let right_pane =
 9366                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9367
 9368            let boxed_clone = single_entry_items[1].boxed_clone();
 9369            let right_pane = window.spawn(cx, async move |cx| {
 9370                right_pane.await.inspect(|right_pane| {
 9371                    right_pane
 9372                        .update_in(cx, |pane, window, cx| {
 9373                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9374                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9375                        })
 9376                        .unwrap();
 9377                })
 9378            });
 9379
 9380            (left_pane, right_pane)
 9381        });
 9382        let right_pane = right_pane.await.unwrap();
 9383        cx.focus(&right_pane);
 9384
 9385        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9386            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9387                .unwrap()
 9388        });
 9389        cx.executor().run_until_parked();
 9390
 9391        let msg = cx.pending_prompt().unwrap().0;
 9392        assert!(msg.contains("1.txt"));
 9393        assert!(!msg.contains("2.txt"));
 9394        assert!(!msg.contains("3.txt"));
 9395        assert!(!msg.contains("4.txt"));
 9396
 9397        cx.simulate_prompt_answer("Cancel");
 9398        close.await;
 9399
 9400        left_pane
 9401            .update_in(cx, |left_pane, window, cx| {
 9402                left_pane.close_item_by_id(
 9403                    single_entry_items[3].entity_id(),
 9404                    SaveIntent::Skip,
 9405                    window,
 9406                    cx,
 9407                )
 9408            })
 9409            .await
 9410            .unwrap();
 9411
 9412        close = right_pane.update_in(cx, |pane, window, cx| {
 9413            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9414                .unwrap()
 9415        });
 9416        cx.executor().run_until_parked();
 9417
 9418        let details = cx.pending_prompt().unwrap().1;
 9419        assert!(details.contains("1.txt"));
 9420        assert!(!details.contains("2.txt"));
 9421        assert!(details.contains("3.txt"));
 9422        // ideally this assertion could be made, but today we can only
 9423        // save whole items not project items, so the orphaned item 3 causes
 9424        // 4 to be saved too.
 9425        // assert!(!details.contains("4.txt"));
 9426
 9427        cx.simulate_prompt_answer("Save all");
 9428
 9429        cx.executor().run_until_parked();
 9430        close.await;
 9431        right_pane.read_with(cx, |pane, _| {
 9432            assert_eq!(pane.items_len(), 0);
 9433        });
 9434    }
 9435
 9436    #[gpui::test]
 9437    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9438        init_test(cx);
 9439
 9440        let fs = FakeFs::new(cx.executor());
 9441        let project = Project::test(fs, [], cx).await;
 9442        let (workspace, cx) =
 9443            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9444        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9445
 9446        let item = cx.new(|cx| {
 9447            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9448        });
 9449        let item_id = item.entity_id();
 9450        workspace.update_in(cx, |workspace, window, cx| {
 9451            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9452        });
 9453
 9454        // Autosave on window change.
 9455        item.update(cx, |item, cx| {
 9456            SettingsStore::update_global(cx, |settings, cx| {
 9457                settings.update_user_settings(cx, |settings| {
 9458                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9459                })
 9460            });
 9461            item.is_dirty = true;
 9462        });
 9463
 9464        // Deactivating the window saves the file.
 9465        cx.deactivate_window();
 9466        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9467
 9468        // Re-activating the window doesn't save the file.
 9469        cx.update(|window, _| window.activate_window());
 9470        cx.executor().run_until_parked();
 9471        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9472
 9473        // Autosave on focus change.
 9474        item.update_in(cx, |item, window, cx| {
 9475            cx.focus_self(window);
 9476            SettingsStore::update_global(cx, |settings, cx| {
 9477                settings.update_user_settings(cx, |settings| {
 9478                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9479                })
 9480            });
 9481            item.is_dirty = true;
 9482        });
 9483        // Blurring the item saves the file.
 9484        item.update_in(cx, |_, window, _| window.blur());
 9485        cx.executor().run_until_parked();
 9486        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9487
 9488        // Deactivating the window still saves the file.
 9489        item.update_in(cx, |item, window, cx| {
 9490            cx.focus_self(window);
 9491            item.is_dirty = true;
 9492        });
 9493        cx.deactivate_window();
 9494        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9495
 9496        // Autosave after delay.
 9497        item.update(cx, |item, cx| {
 9498            SettingsStore::update_global(cx, |settings, cx| {
 9499                settings.update_user_settings(cx, |settings| {
 9500                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9501                        milliseconds: 500.into(),
 9502                    });
 9503                })
 9504            });
 9505            item.is_dirty = true;
 9506            cx.emit(ItemEvent::Edit);
 9507        });
 9508
 9509        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9510        cx.executor().advance_clock(Duration::from_millis(250));
 9511        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9512
 9513        // After delay expires, the file is saved.
 9514        cx.executor().advance_clock(Duration::from_millis(250));
 9515        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9516
 9517        // Autosave after delay, should save earlier than delay if tab is closed
 9518        item.update(cx, |item, cx| {
 9519            item.is_dirty = true;
 9520            cx.emit(ItemEvent::Edit);
 9521        });
 9522        cx.executor().advance_clock(Duration::from_millis(250));
 9523        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9524
 9525        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9526        pane.update_in(cx, |pane, window, cx| {
 9527            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9528        })
 9529        .await
 9530        .unwrap();
 9531        assert!(!cx.has_pending_prompt());
 9532        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9533
 9534        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9535        workspace.update_in(cx, |workspace, window, cx| {
 9536            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9537        });
 9538        item.update_in(cx, |item, _window, cx| {
 9539            item.is_dirty = true;
 9540            for project_item in &mut item.project_items {
 9541                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9542            }
 9543        });
 9544        cx.run_until_parked();
 9545        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9546
 9547        // Autosave on focus change, ensuring closing the tab counts as such.
 9548        item.update(cx, |item, cx| {
 9549            SettingsStore::update_global(cx, |settings, cx| {
 9550                settings.update_user_settings(cx, |settings| {
 9551                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9552                })
 9553            });
 9554            item.is_dirty = true;
 9555            for project_item in &mut item.project_items {
 9556                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9557            }
 9558        });
 9559
 9560        pane.update_in(cx, |pane, window, cx| {
 9561            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9562        })
 9563        .await
 9564        .unwrap();
 9565        assert!(!cx.has_pending_prompt());
 9566        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9567
 9568        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9569        workspace.update_in(cx, |workspace, window, cx| {
 9570            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9571        });
 9572        item.update_in(cx, |item, window, cx| {
 9573            item.project_items[0].update(cx, |item, _| {
 9574                item.entry_id = None;
 9575            });
 9576            item.is_dirty = true;
 9577            window.blur();
 9578        });
 9579        cx.run_until_parked();
 9580        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9581
 9582        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9583        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9584            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9585        });
 9586        cx.run_until_parked();
 9587        assert!(cx.has_pending_prompt());
 9588        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9589    }
 9590
 9591    #[gpui::test]
 9592    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9593        init_test(cx);
 9594
 9595        let fs = FakeFs::new(cx.executor());
 9596
 9597        let project = Project::test(fs, [], cx).await;
 9598        let (workspace, cx) =
 9599            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9600
 9601        let item = cx.new(|cx| {
 9602            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9603        });
 9604        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9605        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9606        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9607
 9608        workspace.update_in(cx, |workspace, window, cx| {
 9609            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9610            let toolbar_notification_count = toolbar_notify_count.clone();
 9611            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9612                *toolbar_notification_count.borrow_mut() += 1
 9613            })
 9614            .detach();
 9615        });
 9616
 9617        pane.read_with(cx, |pane, _| {
 9618            assert!(!pane.can_navigate_backward());
 9619            assert!(!pane.can_navigate_forward());
 9620        });
 9621
 9622        item.update_in(cx, |item, _, cx| {
 9623            item.set_state("one".to_string(), cx);
 9624        });
 9625
 9626        // Toolbar must be notified to re-render the navigation buttons
 9627        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9628
 9629        pane.read_with(cx, |pane, _| {
 9630            assert!(pane.can_navigate_backward());
 9631            assert!(!pane.can_navigate_forward());
 9632        });
 9633
 9634        workspace
 9635            .update_in(cx, |workspace, window, cx| {
 9636                workspace.go_back(pane.downgrade(), window, cx)
 9637            })
 9638            .await
 9639            .unwrap();
 9640
 9641        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9642        pane.read_with(cx, |pane, _| {
 9643            assert!(!pane.can_navigate_backward());
 9644            assert!(pane.can_navigate_forward());
 9645        });
 9646    }
 9647
 9648    #[gpui::test]
 9649    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9650        init_test(cx);
 9651        let fs = FakeFs::new(cx.executor());
 9652
 9653        let project = Project::test(fs, [], cx).await;
 9654        let (workspace, cx) =
 9655            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9656
 9657        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9658            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9659            workspace.add_panel(panel.clone(), window, cx);
 9660
 9661            workspace
 9662                .right_dock()
 9663                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9664
 9665            panel
 9666        });
 9667
 9668        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9669        pane.update_in(cx, |pane, window, cx| {
 9670            let item = cx.new(TestItem::new);
 9671            pane.add_item(Box::new(item), true, true, None, window, cx);
 9672        });
 9673
 9674        // Transfer focus from center to panel
 9675        workspace.update_in(cx, |workspace, window, cx| {
 9676            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9677        });
 9678
 9679        workspace.update_in(cx, |workspace, window, cx| {
 9680            assert!(workspace.right_dock().read(cx).is_open());
 9681            assert!(!panel.is_zoomed(window, cx));
 9682            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9683        });
 9684
 9685        // Transfer focus from panel to center
 9686        workspace.update_in(cx, |workspace, window, cx| {
 9687            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9688        });
 9689
 9690        workspace.update_in(cx, |workspace, window, cx| {
 9691            assert!(workspace.right_dock().read(cx).is_open());
 9692            assert!(!panel.is_zoomed(window, cx));
 9693            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9694        });
 9695
 9696        // Close the dock
 9697        workspace.update_in(cx, |workspace, window, cx| {
 9698            workspace.toggle_dock(DockPosition::Right, window, cx);
 9699        });
 9700
 9701        workspace.update_in(cx, |workspace, window, cx| {
 9702            assert!(!workspace.right_dock().read(cx).is_open());
 9703            assert!(!panel.is_zoomed(window, cx));
 9704            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9705        });
 9706
 9707        // Open the dock
 9708        workspace.update_in(cx, |workspace, window, cx| {
 9709            workspace.toggle_dock(DockPosition::Right, window, cx);
 9710        });
 9711
 9712        workspace.update_in(cx, |workspace, window, cx| {
 9713            assert!(workspace.right_dock().read(cx).is_open());
 9714            assert!(!panel.is_zoomed(window, cx));
 9715            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9716        });
 9717
 9718        // Focus and zoom panel
 9719        panel.update_in(cx, |panel, window, cx| {
 9720            cx.focus_self(window);
 9721            panel.set_zoomed(true, window, cx)
 9722        });
 9723
 9724        workspace.update_in(cx, |workspace, window, cx| {
 9725            assert!(workspace.right_dock().read(cx).is_open());
 9726            assert!(panel.is_zoomed(window, cx));
 9727            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9728        });
 9729
 9730        // Transfer focus to the center closes the dock
 9731        workspace.update_in(cx, |workspace, window, cx| {
 9732            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9733        });
 9734
 9735        workspace.update_in(cx, |workspace, window, cx| {
 9736            assert!(!workspace.right_dock().read(cx).is_open());
 9737            assert!(panel.is_zoomed(window, cx));
 9738            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9739        });
 9740
 9741        // Transferring focus back to the panel keeps it zoomed
 9742        workspace.update_in(cx, |workspace, window, cx| {
 9743            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9744        });
 9745
 9746        workspace.update_in(cx, |workspace, window, cx| {
 9747            assert!(workspace.right_dock().read(cx).is_open());
 9748            assert!(panel.is_zoomed(window, cx));
 9749            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9750        });
 9751
 9752        // Close the dock while it is zoomed
 9753        workspace.update_in(cx, |workspace, window, cx| {
 9754            workspace.toggle_dock(DockPosition::Right, window, cx)
 9755        });
 9756
 9757        workspace.update_in(cx, |workspace, window, cx| {
 9758            assert!(!workspace.right_dock().read(cx).is_open());
 9759            assert!(panel.is_zoomed(window, cx));
 9760            assert!(workspace.zoomed.is_none());
 9761            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9762        });
 9763
 9764        // Opening the dock, when it's zoomed, retains focus
 9765        workspace.update_in(cx, |workspace, window, cx| {
 9766            workspace.toggle_dock(DockPosition::Right, window, cx)
 9767        });
 9768
 9769        workspace.update_in(cx, |workspace, window, cx| {
 9770            assert!(workspace.right_dock().read(cx).is_open());
 9771            assert!(panel.is_zoomed(window, cx));
 9772            assert!(workspace.zoomed.is_some());
 9773            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9774        });
 9775
 9776        // Unzoom and close the panel, zoom the active pane.
 9777        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9778        workspace.update_in(cx, |workspace, window, cx| {
 9779            workspace.toggle_dock(DockPosition::Right, window, cx)
 9780        });
 9781        pane.update_in(cx, |pane, window, cx| {
 9782            pane.toggle_zoom(&Default::default(), window, cx)
 9783        });
 9784
 9785        // Opening a dock unzooms the pane.
 9786        workspace.update_in(cx, |workspace, window, cx| {
 9787            workspace.toggle_dock(DockPosition::Right, window, cx)
 9788        });
 9789        workspace.update_in(cx, |workspace, window, cx| {
 9790            let pane = pane.read(cx);
 9791            assert!(!pane.is_zoomed());
 9792            assert!(!pane.focus_handle(cx).is_focused(window));
 9793            assert!(workspace.right_dock().read(cx).is_open());
 9794            assert!(workspace.zoomed.is_none());
 9795        });
 9796    }
 9797
 9798    #[gpui::test]
 9799    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9800        init_test(cx);
 9801        let fs = FakeFs::new(cx.executor());
 9802
 9803        let project = Project::test(fs, [], cx).await;
 9804        let (workspace, cx) =
 9805            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9806
 9807        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9808            workspace.active_pane().clone()
 9809        });
 9810
 9811        // Add an item to the pane so it can be zoomed
 9812        workspace.update_in(cx, |workspace, window, cx| {
 9813            let item = cx.new(TestItem::new);
 9814            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9815        });
 9816
 9817        // Initially not zoomed
 9818        workspace.update_in(cx, |workspace, _window, cx| {
 9819            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9820            assert!(
 9821                workspace.zoomed.is_none(),
 9822                "Workspace should track no zoomed pane"
 9823            );
 9824            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9825        });
 9826
 9827        // Zoom In
 9828        pane.update_in(cx, |pane, window, cx| {
 9829            pane.zoom_in(&crate::ZoomIn, window, cx);
 9830        });
 9831
 9832        workspace.update_in(cx, |workspace, window, cx| {
 9833            assert!(
 9834                pane.read(cx).is_zoomed(),
 9835                "Pane should be zoomed after ZoomIn"
 9836            );
 9837            assert!(
 9838                workspace.zoomed.is_some(),
 9839                "Workspace should track the zoomed pane"
 9840            );
 9841            assert!(
 9842                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9843                "ZoomIn should focus the pane"
 9844            );
 9845        });
 9846
 9847        // Zoom In again is a no-op
 9848        pane.update_in(cx, |pane, window, cx| {
 9849            pane.zoom_in(&crate::ZoomIn, window, cx);
 9850        });
 9851
 9852        workspace.update_in(cx, |workspace, window, cx| {
 9853            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9854            assert!(
 9855                workspace.zoomed.is_some(),
 9856                "Workspace still tracks zoomed pane"
 9857            );
 9858            assert!(
 9859                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9860                "Pane remains focused after repeated ZoomIn"
 9861            );
 9862        });
 9863
 9864        // Zoom Out
 9865        pane.update_in(cx, |pane, window, cx| {
 9866            pane.zoom_out(&crate::ZoomOut, window, cx);
 9867        });
 9868
 9869        workspace.update_in(cx, |workspace, _window, cx| {
 9870            assert!(
 9871                !pane.read(cx).is_zoomed(),
 9872                "Pane should unzoom after ZoomOut"
 9873            );
 9874            assert!(
 9875                workspace.zoomed.is_none(),
 9876                "Workspace clears zoom tracking after ZoomOut"
 9877            );
 9878        });
 9879
 9880        // Zoom Out again is a no-op
 9881        pane.update_in(cx, |pane, window, cx| {
 9882            pane.zoom_out(&crate::ZoomOut, window, cx);
 9883        });
 9884
 9885        workspace.update_in(cx, |workspace, _window, cx| {
 9886            assert!(
 9887                !pane.read(cx).is_zoomed(),
 9888                "Second ZoomOut keeps pane unzoomed"
 9889            );
 9890            assert!(
 9891                workspace.zoomed.is_none(),
 9892                "Workspace remains without zoomed pane"
 9893            );
 9894        });
 9895    }
 9896
 9897    #[gpui::test]
 9898    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9899        init_test(cx);
 9900        let fs = FakeFs::new(cx.executor());
 9901
 9902        let project = Project::test(fs, [], cx).await;
 9903        let (workspace, cx) =
 9904            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9905        workspace.update_in(cx, |workspace, window, cx| {
 9906            // Open two docks
 9907            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9908            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9909
 9910            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9911            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9912
 9913            assert!(left_dock.read(cx).is_open());
 9914            assert!(right_dock.read(cx).is_open());
 9915        });
 9916
 9917        workspace.update_in(cx, |workspace, window, cx| {
 9918            // Toggle all docks - should close both
 9919            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9920
 9921            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9922            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9923            assert!(!left_dock.read(cx).is_open());
 9924            assert!(!right_dock.read(cx).is_open());
 9925        });
 9926
 9927        workspace.update_in(cx, |workspace, window, cx| {
 9928            // Toggle again - should reopen both
 9929            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9930
 9931            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9932            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9933            assert!(left_dock.read(cx).is_open());
 9934            assert!(right_dock.read(cx).is_open());
 9935        });
 9936    }
 9937
 9938    #[gpui::test]
 9939    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9940        init_test(cx);
 9941        let fs = FakeFs::new(cx.executor());
 9942
 9943        let project = Project::test(fs, [], cx).await;
 9944        let (workspace, cx) =
 9945            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9946        workspace.update_in(cx, |workspace, window, cx| {
 9947            // Open two docks
 9948            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9949            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9950
 9951            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9952            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9953
 9954            assert!(left_dock.read(cx).is_open());
 9955            assert!(right_dock.read(cx).is_open());
 9956        });
 9957
 9958        workspace.update_in(cx, |workspace, window, cx| {
 9959            // Close them manually
 9960            workspace.toggle_dock(DockPosition::Left, window, cx);
 9961            workspace.toggle_dock(DockPosition::Right, window, cx);
 9962
 9963            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9964            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9965            assert!(!left_dock.read(cx).is_open());
 9966            assert!(!right_dock.read(cx).is_open());
 9967        });
 9968
 9969        workspace.update_in(cx, |workspace, window, cx| {
 9970            // Toggle all docks - only last closed (right dock) should reopen
 9971            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9972
 9973            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9974            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9975            assert!(!left_dock.read(cx).is_open());
 9976            assert!(right_dock.read(cx).is_open());
 9977        });
 9978    }
 9979
 9980    #[gpui::test]
 9981    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9982        init_test(cx);
 9983        let fs = FakeFs::new(cx.executor());
 9984        let project = Project::test(fs, [], cx).await;
 9985        let (workspace, cx) =
 9986            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9987
 9988        // Open two docks (left and right) with one panel each
 9989        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9990            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9991            workspace.add_panel(left_panel.clone(), window, cx);
 9992
 9993            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9994            workspace.add_panel(right_panel.clone(), window, cx);
 9995
 9996            workspace.toggle_dock(DockPosition::Left, window, cx);
 9997            workspace.toggle_dock(DockPosition::Right, window, cx);
 9998
 9999            // Verify initial state
10000            assert!(
10001                workspace.left_dock().read(cx).is_open(),
10002                "Left dock should be open"
10003            );
10004            assert_eq!(
10005                workspace
10006                    .left_dock()
10007                    .read(cx)
10008                    .visible_panel()
10009                    .unwrap()
10010                    .panel_id(),
10011                left_panel.panel_id(),
10012                "Left panel should be visible in left dock"
10013            );
10014            assert!(
10015                workspace.right_dock().read(cx).is_open(),
10016                "Right dock should be open"
10017            );
10018            assert_eq!(
10019                workspace
10020                    .right_dock()
10021                    .read(cx)
10022                    .visible_panel()
10023                    .unwrap()
10024                    .panel_id(),
10025                right_panel.panel_id(),
10026                "Right panel should be visible in right dock"
10027            );
10028            assert!(
10029                !workspace.bottom_dock().read(cx).is_open(),
10030                "Bottom dock should be closed"
10031            );
10032
10033            (left_panel, right_panel)
10034        });
10035
10036        // Focus the left panel and move it to the next position (bottom dock)
10037        workspace.update_in(cx, |workspace, window, cx| {
10038            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10039            assert!(
10040                left_panel.read(cx).focus_handle(cx).is_focused(window),
10041                "Left panel should be focused"
10042            );
10043        });
10044
10045        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10046
10047        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10048        workspace.update(cx, |workspace, cx| {
10049            assert!(
10050                !workspace.left_dock().read(cx).is_open(),
10051                "Left dock should be closed"
10052            );
10053            assert!(
10054                workspace.bottom_dock().read(cx).is_open(),
10055                "Bottom dock should now be open"
10056            );
10057            assert_eq!(
10058                left_panel.read(cx).position,
10059                DockPosition::Bottom,
10060                "Left panel should now be in the bottom dock"
10061            );
10062            assert_eq!(
10063                workspace
10064                    .bottom_dock()
10065                    .read(cx)
10066                    .visible_panel()
10067                    .unwrap()
10068                    .panel_id(),
10069                left_panel.panel_id(),
10070                "Left panel should be the visible panel in the bottom dock"
10071            );
10072        });
10073
10074        // Toggle all docks off
10075        workspace.update_in(cx, |workspace, window, cx| {
10076            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10077            assert!(
10078                !workspace.left_dock().read(cx).is_open(),
10079                "Left dock should be closed"
10080            );
10081            assert!(
10082                !workspace.right_dock().read(cx).is_open(),
10083                "Right dock should be closed"
10084            );
10085            assert!(
10086                !workspace.bottom_dock().read(cx).is_open(),
10087                "Bottom dock should be closed"
10088            );
10089        });
10090
10091        // Toggle all docks back on and verify positions are restored
10092        workspace.update_in(cx, |workspace, window, cx| {
10093            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10094            assert!(
10095                !workspace.left_dock().read(cx).is_open(),
10096                "Left dock should remain closed"
10097            );
10098            assert!(
10099                workspace.right_dock().read(cx).is_open(),
10100                "Right dock should remain open"
10101            );
10102            assert!(
10103                workspace.bottom_dock().read(cx).is_open(),
10104                "Bottom dock should remain open"
10105            );
10106            assert_eq!(
10107                left_panel.read(cx).position,
10108                DockPosition::Bottom,
10109                "Left panel should remain in the bottom dock"
10110            );
10111            assert_eq!(
10112                right_panel.read(cx).position,
10113                DockPosition::Right,
10114                "Right panel should remain in the right dock"
10115            );
10116            assert_eq!(
10117                workspace
10118                    .bottom_dock()
10119                    .read(cx)
10120                    .visible_panel()
10121                    .unwrap()
10122                    .panel_id(),
10123                left_panel.panel_id(),
10124                "Left panel should be the visible panel in the right dock"
10125            );
10126        });
10127    }
10128
10129    #[gpui::test]
10130    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10131        init_test(cx);
10132
10133        let fs = FakeFs::new(cx.executor());
10134
10135        let project = Project::test(fs, None, cx).await;
10136        let (workspace, cx) =
10137            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10138
10139        // Let's arrange the panes like this:
10140        //
10141        // +-----------------------+
10142        // |         top           |
10143        // +------+--------+-------+
10144        // | left | center | right |
10145        // +------+--------+-------+
10146        // |        bottom         |
10147        // +-----------------------+
10148
10149        let top_item = cx.new(|cx| {
10150            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10151        });
10152        let bottom_item = cx.new(|cx| {
10153            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10154        });
10155        let left_item = cx.new(|cx| {
10156            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10157        });
10158        let right_item = cx.new(|cx| {
10159            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10160        });
10161        let center_item = cx.new(|cx| {
10162            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10163        });
10164
10165        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10166            let top_pane_id = workspace.active_pane().entity_id();
10167            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10168            workspace.split_pane(
10169                workspace.active_pane().clone(),
10170                SplitDirection::Down,
10171                window,
10172                cx,
10173            );
10174            top_pane_id
10175        });
10176        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10177            let bottom_pane_id = workspace.active_pane().entity_id();
10178            workspace.add_item_to_active_pane(
10179                Box::new(bottom_item.clone()),
10180                None,
10181                false,
10182                window,
10183                cx,
10184            );
10185            workspace.split_pane(
10186                workspace.active_pane().clone(),
10187                SplitDirection::Up,
10188                window,
10189                cx,
10190            );
10191            bottom_pane_id
10192        });
10193        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10194            let left_pane_id = workspace.active_pane().entity_id();
10195            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10196            workspace.split_pane(
10197                workspace.active_pane().clone(),
10198                SplitDirection::Right,
10199                window,
10200                cx,
10201            );
10202            left_pane_id
10203        });
10204        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10205            let right_pane_id = workspace.active_pane().entity_id();
10206            workspace.add_item_to_active_pane(
10207                Box::new(right_item.clone()),
10208                None,
10209                false,
10210                window,
10211                cx,
10212            );
10213            workspace.split_pane(
10214                workspace.active_pane().clone(),
10215                SplitDirection::Left,
10216                window,
10217                cx,
10218            );
10219            right_pane_id
10220        });
10221        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10222            let center_pane_id = workspace.active_pane().entity_id();
10223            workspace.add_item_to_active_pane(
10224                Box::new(center_item.clone()),
10225                None,
10226                false,
10227                window,
10228                cx,
10229            );
10230            center_pane_id
10231        });
10232        cx.executor().run_until_parked();
10233
10234        workspace.update_in(cx, |workspace, window, cx| {
10235            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10236
10237            // Join into next from center pane into right
10238            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10239        });
10240
10241        workspace.update_in(cx, |workspace, window, cx| {
10242            let active_pane = workspace.active_pane();
10243            assert_eq!(right_pane_id, active_pane.entity_id());
10244            assert_eq!(2, active_pane.read(cx).items_len());
10245            let item_ids_in_pane =
10246                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10247            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10248            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10249
10250            // Join into next from right pane into bottom
10251            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10252        });
10253
10254        workspace.update_in(cx, |workspace, window, cx| {
10255            let active_pane = workspace.active_pane();
10256            assert_eq!(bottom_pane_id, active_pane.entity_id());
10257            assert_eq!(3, active_pane.read(cx).items_len());
10258            let item_ids_in_pane =
10259                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10260            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10261            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10262            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10263
10264            // Join into next from bottom pane into left
10265            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10266        });
10267
10268        workspace.update_in(cx, |workspace, window, cx| {
10269            let active_pane = workspace.active_pane();
10270            assert_eq!(left_pane_id, active_pane.entity_id());
10271            assert_eq!(4, active_pane.read(cx).items_len());
10272            let item_ids_in_pane =
10273                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10274            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10275            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10276            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10277            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10278
10279            // Join into next from left pane into top
10280            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10281        });
10282
10283        workspace.update_in(cx, |workspace, window, cx| {
10284            let active_pane = workspace.active_pane();
10285            assert_eq!(top_pane_id, active_pane.entity_id());
10286            assert_eq!(5, active_pane.read(cx).items_len());
10287            let item_ids_in_pane =
10288                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10289            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10290            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10291            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10292            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10293            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10294
10295            // Single pane left: no-op
10296            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10297        });
10298
10299        workspace.update(cx, |workspace, _cx| {
10300            let active_pane = workspace.active_pane();
10301            assert_eq!(top_pane_id, active_pane.entity_id());
10302        });
10303    }
10304
10305    fn add_an_item_to_active_pane(
10306        cx: &mut VisualTestContext,
10307        workspace: &Entity<Workspace>,
10308        item_id: u64,
10309    ) -> Entity<TestItem> {
10310        let item = cx.new(|cx| {
10311            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10312                item_id,
10313                "item{item_id}.txt",
10314                cx,
10315            )])
10316        });
10317        workspace.update_in(cx, |workspace, window, cx| {
10318            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10319        });
10320        item
10321    }
10322
10323    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10324        workspace.update_in(cx, |workspace, window, cx| {
10325            workspace.split_pane(
10326                workspace.active_pane().clone(),
10327                SplitDirection::Right,
10328                window,
10329                cx,
10330            )
10331        })
10332    }
10333
10334    #[gpui::test]
10335    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10336        init_test(cx);
10337        let fs = FakeFs::new(cx.executor());
10338        let project = Project::test(fs, None, cx).await;
10339        let (workspace, cx) =
10340            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10341
10342        add_an_item_to_active_pane(cx, &workspace, 1);
10343        split_pane(cx, &workspace);
10344        add_an_item_to_active_pane(cx, &workspace, 2);
10345        split_pane(cx, &workspace); // empty pane
10346        split_pane(cx, &workspace);
10347        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10348
10349        cx.executor().run_until_parked();
10350
10351        workspace.update(cx, |workspace, cx| {
10352            let num_panes = workspace.panes().len();
10353            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10354            let active_item = workspace
10355                .active_pane()
10356                .read(cx)
10357                .active_item()
10358                .expect("item is in focus");
10359
10360            assert_eq!(num_panes, 4);
10361            assert_eq!(num_items_in_current_pane, 1);
10362            assert_eq!(active_item.item_id(), last_item.item_id());
10363        });
10364
10365        workspace.update_in(cx, |workspace, window, cx| {
10366            workspace.join_all_panes(window, cx);
10367        });
10368
10369        workspace.update(cx, |workspace, cx| {
10370            let num_panes = workspace.panes().len();
10371            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10372            let active_item = workspace
10373                .active_pane()
10374                .read(cx)
10375                .active_item()
10376                .expect("item is in focus");
10377
10378            assert_eq!(num_panes, 1);
10379            assert_eq!(num_items_in_current_pane, 3);
10380            assert_eq!(active_item.item_id(), last_item.item_id());
10381        });
10382    }
10383    struct TestModal(FocusHandle);
10384
10385    impl TestModal {
10386        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10387            Self(cx.focus_handle())
10388        }
10389    }
10390
10391    impl EventEmitter<DismissEvent> for TestModal {}
10392
10393    impl Focusable for TestModal {
10394        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10395            self.0.clone()
10396        }
10397    }
10398
10399    impl ModalView for TestModal {}
10400
10401    impl Render for TestModal {
10402        fn render(
10403            &mut self,
10404            _window: &mut Window,
10405            _cx: &mut Context<TestModal>,
10406        ) -> impl IntoElement {
10407            div().track_focus(&self.0)
10408        }
10409    }
10410
10411    #[gpui::test]
10412    async fn test_panels(cx: &mut gpui::TestAppContext) {
10413        init_test(cx);
10414        let fs = FakeFs::new(cx.executor());
10415
10416        let project = Project::test(fs, [], cx).await;
10417        let (workspace, cx) =
10418            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10419
10420        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10421            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10422            workspace.add_panel(panel_1.clone(), window, cx);
10423            workspace.toggle_dock(DockPosition::Left, window, cx);
10424            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10425            workspace.add_panel(panel_2.clone(), window, cx);
10426            workspace.toggle_dock(DockPosition::Right, window, cx);
10427
10428            let left_dock = workspace.left_dock();
10429            assert_eq!(
10430                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10431                panel_1.panel_id()
10432            );
10433            assert_eq!(
10434                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10435                panel_1.size(window, cx)
10436            );
10437
10438            left_dock.update(cx, |left_dock, cx| {
10439                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10440            });
10441            assert_eq!(
10442                workspace
10443                    .right_dock()
10444                    .read(cx)
10445                    .visible_panel()
10446                    .unwrap()
10447                    .panel_id(),
10448                panel_2.panel_id(),
10449            );
10450
10451            (panel_1, panel_2)
10452        });
10453
10454        // Move panel_1 to the right
10455        panel_1.update_in(cx, |panel_1, window, cx| {
10456            panel_1.set_position(DockPosition::Right, window, cx)
10457        });
10458
10459        workspace.update_in(cx, |workspace, window, cx| {
10460            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10461            // Since it was the only panel on the left, the left dock should now be closed.
10462            assert!(!workspace.left_dock().read(cx).is_open());
10463            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10464            let right_dock = workspace.right_dock();
10465            assert_eq!(
10466                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10467                panel_1.panel_id()
10468            );
10469            assert_eq!(
10470                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10471                px(1337.)
10472            );
10473
10474            // Now we move panel_2 to the left
10475            panel_2.set_position(DockPosition::Left, window, cx);
10476        });
10477
10478        workspace.update(cx, |workspace, cx| {
10479            // Since panel_2 was not visible on the right, we don't open the left dock.
10480            assert!(!workspace.left_dock().read(cx).is_open());
10481            // And the right dock is unaffected in its displaying of panel_1
10482            assert!(workspace.right_dock().read(cx).is_open());
10483            assert_eq!(
10484                workspace
10485                    .right_dock()
10486                    .read(cx)
10487                    .visible_panel()
10488                    .unwrap()
10489                    .panel_id(),
10490                panel_1.panel_id(),
10491            );
10492        });
10493
10494        // Move panel_1 back to the left
10495        panel_1.update_in(cx, |panel_1, window, cx| {
10496            panel_1.set_position(DockPosition::Left, window, cx)
10497        });
10498
10499        workspace.update_in(cx, |workspace, window, cx| {
10500            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10501            let left_dock = workspace.left_dock();
10502            assert!(left_dock.read(cx).is_open());
10503            assert_eq!(
10504                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10505                panel_1.panel_id()
10506            );
10507            assert_eq!(
10508                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10509                px(1337.)
10510            );
10511            // And the right dock should be closed as it no longer has any panels.
10512            assert!(!workspace.right_dock().read(cx).is_open());
10513
10514            // Now we move panel_1 to the bottom
10515            panel_1.set_position(DockPosition::Bottom, window, cx);
10516        });
10517
10518        workspace.update_in(cx, |workspace, window, cx| {
10519            // Since panel_1 was visible on the left, we close the left dock.
10520            assert!(!workspace.left_dock().read(cx).is_open());
10521            // The bottom dock is sized based on the panel's default size,
10522            // since the panel orientation changed from vertical to horizontal.
10523            let bottom_dock = workspace.bottom_dock();
10524            assert_eq!(
10525                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10526                panel_1.size(window, cx),
10527            );
10528            // Close bottom dock and move panel_1 back to the left.
10529            bottom_dock.update(cx, |bottom_dock, cx| {
10530                bottom_dock.set_open(false, window, cx)
10531            });
10532            panel_1.set_position(DockPosition::Left, window, cx);
10533        });
10534
10535        // Emit activated event on panel 1
10536        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10537
10538        // Now the left dock is open and panel_1 is active and focused.
10539        workspace.update_in(cx, |workspace, window, cx| {
10540            let left_dock = workspace.left_dock();
10541            assert!(left_dock.read(cx).is_open());
10542            assert_eq!(
10543                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10544                panel_1.panel_id(),
10545            );
10546            assert!(panel_1.focus_handle(cx).is_focused(window));
10547        });
10548
10549        // Emit closed event on panel 2, which is not active
10550        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10551
10552        // Wo don't close the left dock, because panel_2 wasn't the active panel
10553        workspace.update(cx, |workspace, cx| {
10554            let left_dock = workspace.left_dock();
10555            assert!(left_dock.read(cx).is_open());
10556            assert_eq!(
10557                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10558                panel_1.panel_id(),
10559            );
10560        });
10561
10562        // Emitting a ZoomIn event shows the panel as zoomed.
10563        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10564        workspace.read_with(cx, |workspace, _| {
10565            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10566            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10567        });
10568
10569        // Move panel to another dock while it is zoomed
10570        panel_1.update_in(cx, |panel, window, cx| {
10571            panel.set_position(DockPosition::Right, window, cx)
10572        });
10573        workspace.read_with(cx, |workspace, _| {
10574            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10575
10576            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10577        });
10578
10579        // This is a helper for getting a:
10580        // - valid focus on an element,
10581        // - that isn't a part of the panes and panels system of the Workspace,
10582        // - and doesn't trigger the 'on_focus_lost' API.
10583        let focus_other_view = {
10584            let workspace = workspace.clone();
10585            move |cx: &mut VisualTestContext| {
10586                workspace.update_in(cx, |workspace, window, cx| {
10587                    if workspace.active_modal::<TestModal>(cx).is_some() {
10588                        workspace.toggle_modal(window, cx, TestModal::new);
10589                        workspace.toggle_modal(window, cx, TestModal::new);
10590                    } else {
10591                        workspace.toggle_modal(window, cx, TestModal::new);
10592                    }
10593                })
10594            }
10595        };
10596
10597        // If focus is transferred to another view that's not a panel or another pane, we still show
10598        // the panel as zoomed.
10599        focus_other_view(cx);
10600        workspace.read_with(cx, |workspace, _| {
10601            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10602            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10603        });
10604
10605        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10606        workspace.update_in(cx, |_workspace, window, cx| {
10607            cx.focus_self(window);
10608        });
10609        workspace.read_with(cx, |workspace, _| {
10610            assert_eq!(workspace.zoomed, None);
10611            assert_eq!(workspace.zoomed_position, None);
10612        });
10613
10614        // If focus is transferred again to another view that's not a panel or a pane, we won't
10615        // show the panel as zoomed because it wasn't zoomed before.
10616        focus_other_view(cx);
10617        workspace.read_with(cx, |workspace, _| {
10618            assert_eq!(workspace.zoomed, None);
10619            assert_eq!(workspace.zoomed_position, None);
10620        });
10621
10622        // When the panel is activated, it is zoomed again.
10623        cx.dispatch_action(ToggleRightDock);
10624        workspace.read_with(cx, |workspace, _| {
10625            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10626            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10627        });
10628
10629        // Emitting a ZoomOut event unzooms the panel.
10630        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10631        workspace.read_with(cx, |workspace, _| {
10632            assert_eq!(workspace.zoomed, None);
10633            assert_eq!(workspace.zoomed_position, None);
10634        });
10635
10636        // Emit closed event on panel 1, which is active
10637        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10638
10639        // Now the left dock is closed, because panel_1 was the active panel
10640        workspace.update(cx, |workspace, cx| {
10641            let right_dock = workspace.right_dock();
10642            assert!(!right_dock.read(cx).is_open());
10643        });
10644    }
10645
10646    #[gpui::test]
10647    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10648        init_test(cx);
10649
10650        let fs = FakeFs::new(cx.background_executor.clone());
10651        let project = Project::test(fs, [], cx).await;
10652        let (workspace, cx) =
10653            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10654        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10655
10656        let dirty_regular_buffer = cx.new(|cx| {
10657            TestItem::new(cx)
10658                .with_dirty(true)
10659                .with_label("1.txt")
10660                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10661        });
10662        let dirty_regular_buffer_2 = cx.new(|cx| {
10663            TestItem::new(cx)
10664                .with_dirty(true)
10665                .with_label("2.txt")
10666                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10667        });
10668        let dirty_multi_buffer_with_both = cx.new(|cx| {
10669            TestItem::new(cx)
10670                .with_dirty(true)
10671                .with_buffer_kind(ItemBufferKind::Multibuffer)
10672                .with_label("Fake Project Search")
10673                .with_project_items(&[
10674                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10675                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10676                ])
10677        });
10678        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10679        workspace.update_in(cx, |workspace, window, cx| {
10680            workspace.add_item(
10681                pane.clone(),
10682                Box::new(dirty_regular_buffer.clone()),
10683                None,
10684                false,
10685                false,
10686                window,
10687                cx,
10688            );
10689            workspace.add_item(
10690                pane.clone(),
10691                Box::new(dirty_regular_buffer_2.clone()),
10692                None,
10693                false,
10694                false,
10695                window,
10696                cx,
10697            );
10698            workspace.add_item(
10699                pane.clone(),
10700                Box::new(dirty_multi_buffer_with_both.clone()),
10701                None,
10702                false,
10703                false,
10704                window,
10705                cx,
10706            );
10707        });
10708
10709        pane.update_in(cx, |pane, window, cx| {
10710            pane.activate_item(2, true, true, window, cx);
10711            assert_eq!(
10712                pane.active_item().unwrap().item_id(),
10713                multi_buffer_with_both_files_id,
10714                "Should select the multi buffer in the pane"
10715            );
10716        });
10717        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10718            pane.close_other_items(
10719                &CloseOtherItems {
10720                    save_intent: Some(SaveIntent::Save),
10721                    close_pinned: true,
10722                },
10723                None,
10724                window,
10725                cx,
10726            )
10727        });
10728        cx.background_executor.run_until_parked();
10729        assert!(!cx.has_pending_prompt());
10730        close_all_but_multi_buffer_task
10731            .await
10732            .expect("Closing all buffers but the multi buffer failed");
10733        pane.update(cx, |pane, cx| {
10734            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10735            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10736            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10737            assert_eq!(pane.items_len(), 1);
10738            assert_eq!(
10739                pane.active_item().unwrap().item_id(),
10740                multi_buffer_with_both_files_id,
10741                "Should have only the multi buffer left in the pane"
10742            );
10743            assert!(
10744                dirty_multi_buffer_with_both.read(cx).is_dirty,
10745                "The multi buffer containing the unsaved buffer should still be dirty"
10746            );
10747        });
10748
10749        dirty_regular_buffer.update(cx, |buffer, cx| {
10750            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10751        });
10752
10753        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10754            pane.close_active_item(
10755                &CloseActiveItem {
10756                    save_intent: Some(SaveIntent::Close),
10757                    close_pinned: false,
10758                },
10759                window,
10760                cx,
10761            )
10762        });
10763        cx.background_executor.run_until_parked();
10764        assert!(
10765            cx.has_pending_prompt(),
10766            "Dirty multi buffer should prompt a save dialog"
10767        );
10768        cx.simulate_prompt_answer("Save");
10769        cx.background_executor.run_until_parked();
10770        close_multi_buffer_task
10771            .await
10772            .expect("Closing the multi buffer failed");
10773        pane.update(cx, |pane, cx| {
10774            assert_eq!(
10775                dirty_multi_buffer_with_both.read(cx).save_count,
10776                1,
10777                "Multi buffer item should get be saved"
10778            );
10779            // Test impl does not save inner items, so we do not assert them
10780            assert_eq!(
10781                pane.items_len(),
10782                0,
10783                "No more items should be left in the pane"
10784            );
10785            assert!(pane.active_item().is_none());
10786        });
10787    }
10788
10789    #[gpui::test]
10790    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10791        cx: &mut TestAppContext,
10792    ) {
10793        init_test(cx);
10794
10795        let fs = FakeFs::new(cx.background_executor.clone());
10796        let project = Project::test(fs, [], cx).await;
10797        let (workspace, cx) =
10798            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10799        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10800
10801        let dirty_regular_buffer = cx.new(|cx| {
10802            TestItem::new(cx)
10803                .with_dirty(true)
10804                .with_label("1.txt")
10805                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10806        });
10807        let dirty_regular_buffer_2 = cx.new(|cx| {
10808            TestItem::new(cx)
10809                .with_dirty(true)
10810                .with_label("2.txt")
10811                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10812        });
10813        let clear_regular_buffer = cx.new(|cx| {
10814            TestItem::new(cx)
10815                .with_label("3.txt")
10816                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10817        });
10818
10819        let dirty_multi_buffer_with_both = cx.new(|cx| {
10820            TestItem::new(cx)
10821                .with_dirty(true)
10822                .with_buffer_kind(ItemBufferKind::Multibuffer)
10823                .with_label("Fake Project Search")
10824                .with_project_items(&[
10825                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10826                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10827                    clear_regular_buffer.read(cx).project_items[0].clone(),
10828                ])
10829        });
10830        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10831        workspace.update_in(cx, |workspace, window, cx| {
10832            workspace.add_item(
10833                pane.clone(),
10834                Box::new(dirty_regular_buffer.clone()),
10835                None,
10836                false,
10837                false,
10838                window,
10839                cx,
10840            );
10841            workspace.add_item(
10842                pane.clone(),
10843                Box::new(dirty_multi_buffer_with_both.clone()),
10844                None,
10845                false,
10846                false,
10847                window,
10848                cx,
10849            );
10850        });
10851
10852        pane.update_in(cx, |pane, window, cx| {
10853            pane.activate_item(1, true, true, window, cx);
10854            assert_eq!(
10855                pane.active_item().unwrap().item_id(),
10856                multi_buffer_with_both_files_id,
10857                "Should select the multi buffer in the pane"
10858            );
10859        });
10860        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10861            pane.close_active_item(
10862                &CloseActiveItem {
10863                    save_intent: None,
10864                    close_pinned: false,
10865                },
10866                window,
10867                cx,
10868            )
10869        });
10870        cx.background_executor.run_until_parked();
10871        assert!(
10872            cx.has_pending_prompt(),
10873            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10874        );
10875    }
10876
10877    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10878    /// closed when they are deleted from disk.
10879    #[gpui::test]
10880    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10881        init_test(cx);
10882
10883        // Enable the close_on_disk_deletion setting
10884        cx.update_global(|store: &mut SettingsStore, cx| {
10885            store.update_user_settings(cx, |settings| {
10886                settings.workspace.close_on_file_delete = Some(true);
10887            });
10888        });
10889
10890        let fs = FakeFs::new(cx.background_executor.clone());
10891        let project = Project::test(fs, [], cx).await;
10892        let (workspace, cx) =
10893            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10894        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10895
10896        // Create a test item that simulates a file
10897        let item = cx.new(|cx| {
10898            TestItem::new(cx)
10899                .with_label("test.txt")
10900                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10901        });
10902
10903        // Add item to workspace
10904        workspace.update_in(cx, |workspace, window, cx| {
10905            workspace.add_item(
10906                pane.clone(),
10907                Box::new(item.clone()),
10908                None,
10909                false,
10910                false,
10911                window,
10912                cx,
10913            );
10914        });
10915
10916        // Verify the item is in the pane
10917        pane.read_with(cx, |pane, _| {
10918            assert_eq!(pane.items().count(), 1);
10919        });
10920
10921        // Simulate file deletion by setting the item's deleted state
10922        item.update(cx, |item, _| {
10923            item.set_has_deleted_file(true);
10924        });
10925
10926        // Emit UpdateTab event to trigger the close behavior
10927        cx.run_until_parked();
10928        item.update(cx, |_, cx| {
10929            cx.emit(ItemEvent::UpdateTab);
10930        });
10931
10932        // Allow the close operation to complete
10933        cx.run_until_parked();
10934
10935        // Verify the item was automatically closed
10936        pane.read_with(cx, |pane, _| {
10937            assert_eq!(
10938                pane.items().count(),
10939                0,
10940                "Item should be automatically closed when file is deleted"
10941            );
10942        });
10943    }
10944
10945    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10946    /// open with a strikethrough when they are deleted from disk.
10947    #[gpui::test]
10948    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10949        init_test(cx);
10950
10951        // Ensure close_on_disk_deletion is disabled (default)
10952        cx.update_global(|store: &mut SettingsStore, cx| {
10953            store.update_user_settings(cx, |settings| {
10954                settings.workspace.close_on_file_delete = Some(false);
10955            });
10956        });
10957
10958        let fs = FakeFs::new(cx.background_executor.clone());
10959        let project = Project::test(fs, [], cx).await;
10960        let (workspace, cx) =
10961            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10962        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10963
10964        // Create a test item that simulates a file
10965        let item = cx.new(|cx| {
10966            TestItem::new(cx)
10967                .with_label("test.txt")
10968                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10969        });
10970
10971        // Add item to workspace
10972        workspace.update_in(cx, |workspace, window, cx| {
10973            workspace.add_item(
10974                pane.clone(),
10975                Box::new(item.clone()),
10976                None,
10977                false,
10978                false,
10979                window,
10980                cx,
10981            );
10982        });
10983
10984        // Verify the item is in the pane
10985        pane.read_with(cx, |pane, _| {
10986            assert_eq!(pane.items().count(), 1);
10987        });
10988
10989        // Simulate file deletion
10990        item.update(cx, |item, _| {
10991            item.set_has_deleted_file(true);
10992        });
10993
10994        // Emit UpdateTab event
10995        cx.run_until_parked();
10996        item.update(cx, |_, cx| {
10997            cx.emit(ItemEvent::UpdateTab);
10998        });
10999
11000        // Allow any potential close operation to complete
11001        cx.run_until_parked();
11002
11003        // Verify the item remains open (with strikethrough)
11004        pane.read_with(cx, |pane, _| {
11005            assert_eq!(
11006                pane.items().count(),
11007                1,
11008                "Item should remain open when close_on_disk_deletion is disabled"
11009            );
11010        });
11011
11012        // Verify the item shows as deleted
11013        item.read_with(cx, |item, _| {
11014            assert!(
11015                item.has_deleted_file,
11016                "Item should be marked as having deleted file"
11017            );
11018        });
11019    }
11020
11021    /// Tests that dirty files are not automatically closed when deleted from disk,
11022    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11023    /// unsaved changes without being prompted.
11024    #[gpui::test]
11025    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11026        init_test(cx);
11027
11028        // Enable the close_on_file_delete setting
11029        cx.update_global(|store: &mut SettingsStore, cx| {
11030            store.update_user_settings(cx, |settings| {
11031                settings.workspace.close_on_file_delete = Some(true);
11032            });
11033        });
11034
11035        let fs = FakeFs::new(cx.background_executor.clone());
11036        let project = Project::test(fs, [], cx).await;
11037        let (workspace, cx) =
11038            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11039        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11040
11041        // Create a dirty test item
11042        let item = cx.new(|cx| {
11043            TestItem::new(cx)
11044                .with_dirty(true)
11045                .with_label("test.txt")
11046                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11047        });
11048
11049        // Add item to workspace
11050        workspace.update_in(cx, |workspace, window, cx| {
11051            workspace.add_item(
11052                pane.clone(),
11053                Box::new(item.clone()),
11054                None,
11055                false,
11056                false,
11057                window,
11058                cx,
11059            );
11060        });
11061
11062        // Simulate file deletion
11063        item.update(cx, |item, _| {
11064            item.set_has_deleted_file(true);
11065        });
11066
11067        // Emit UpdateTab event to trigger the close behavior
11068        cx.run_until_parked();
11069        item.update(cx, |_, cx| {
11070            cx.emit(ItemEvent::UpdateTab);
11071        });
11072
11073        // Allow any potential close operation to complete
11074        cx.run_until_parked();
11075
11076        // Verify the item remains open (dirty files are not auto-closed)
11077        pane.read_with(cx, |pane, _| {
11078            assert_eq!(
11079                pane.items().count(),
11080                1,
11081                "Dirty items should not be automatically closed even when file is deleted"
11082            );
11083        });
11084
11085        // Verify the item is marked as deleted and still dirty
11086        item.read_with(cx, |item, _| {
11087            assert!(
11088                item.has_deleted_file,
11089                "Item should be marked as having deleted file"
11090            );
11091            assert!(item.is_dirty, "Item should still be dirty");
11092        });
11093    }
11094
11095    /// Tests that navigation history is cleaned up when files are auto-closed
11096    /// due to deletion from disk.
11097    #[gpui::test]
11098    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11099        init_test(cx);
11100
11101        // Enable the close_on_file_delete setting
11102        cx.update_global(|store: &mut SettingsStore, cx| {
11103            store.update_user_settings(cx, |settings| {
11104                settings.workspace.close_on_file_delete = Some(true);
11105            });
11106        });
11107
11108        let fs = FakeFs::new(cx.background_executor.clone());
11109        let project = Project::test(fs, [], cx).await;
11110        let (workspace, cx) =
11111            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11112        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11113
11114        // Create test items
11115        let item1 = cx.new(|cx| {
11116            TestItem::new(cx)
11117                .with_label("test1.txt")
11118                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11119        });
11120        let item1_id = item1.item_id();
11121
11122        let item2 = cx.new(|cx| {
11123            TestItem::new(cx)
11124                .with_label("test2.txt")
11125                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11126        });
11127
11128        // Add items to workspace
11129        workspace.update_in(cx, |workspace, window, cx| {
11130            workspace.add_item(
11131                pane.clone(),
11132                Box::new(item1.clone()),
11133                None,
11134                false,
11135                false,
11136                window,
11137                cx,
11138            );
11139            workspace.add_item(
11140                pane.clone(),
11141                Box::new(item2.clone()),
11142                None,
11143                false,
11144                false,
11145                window,
11146                cx,
11147            );
11148        });
11149
11150        // Activate item1 to ensure it gets navigation entries
11151        pane.update_in(cx, |pane, window, cx| {
11152            pane.activate_item(0, true, true, window, cx);
11153        });
11154
11155        // Switch to item2 and back to create navigation history
11156        pane.update_in(cx, |pane, window, cx| {
11157            pane.activate_item(1, true, true, window, cx);
11158        });
11159        cx.run_until_parked();
11160
11161        pane.update_in(cx, |pane, window, cx| {
11162            pane.activate_item(0, true, true, window, cx);
11163        });
11164        cx.run_until_parked();
11165
11166        // Simulate file deletion for item1
11167        item1.update(cx, |item, _| {
11168            item.set_has_deleted_file(true);
11169        });
11170
11171        // Emit UpdateTab event to trigger the close behavior
11172        item1.update(cx, |_, cx| {
11173            cx.emit(ItemEvent::UpdateTab);
11174        });
11175        cx.run_until_parked();
11176
11177        // Verify item1 was closed
11178        pane.read_with(cx, |pane, _| {
11179            assert_eq!(
11180                pane.items().count(),
11181                1,
11182                "Should have 1 item remaining after auto-close"
11183            );
11184        });
11185
11186        // Check navigation history after close
11187        let has_item = pane.read_with(cx, |pane, cx| {
11188            let mut has_item = false;
11189            pane.nav_history().for_each_entry(cx, |entry, _| {
11190                if entry.item.id() == item1_id {
11191                    has_item = true;
11192                }
11193            });
11194            has_item
11195        });
11196
11197        assert!(
11198            !has_item,
11199            "Navigation history should not contain closed item entries"
11200        );
11201    }
11202
11203    #[gpui::test]
11204    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11205        cx: &mut TestAppContext,
11206    ) {
11207        init_test(cx);
11208
11209        let fs = FakeFs::new(cx.background_executor.clone());
11210        let project = Project::test(fs, [], cx).await;
11211        let (workspace, cx) =
11212            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11213        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11214
11215        let dirty_regular_buffer = cx.new(|cx| {
11216            TestItem::new(cx)
11217                .with_dirty(true)
11218                .with_label("1.txt")
11219                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11220        });
11221        let dirty_regular_buffer_2 = cx.new(|cx| {
11222            TestItem::new(cx)
11223                .with_dirty(true)
11224                .with_label("2.txt")
11225                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11226        });
11227        let clear_regular_buffer = cx.new(|cx| {
11228            TestItem::new(cx)
11229                .with_label("3.txt")
11230                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11231        });
11232
11233        let dirty_multi_buffer = cx.new(|cx| {
11234            TestItem::new(cx)
11235                .with_dirty(true)
11236                .with_buffer_kind(ItemBufferKind::Multibuffer)
11237                .with_label("Fake Project Search")
11238                .with_project_items(&[
11239                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11240                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11241                    clear_regular_buffer.read(cx).project_items[0].clone(),
11242                ])
11243        });
11244        workspace.update_in(cx, |workspace, window, cx| {
11245            workspace.add_item(
11246                pane.clone(),
11247                Box::new(dirty_regular_buffer.clone()),
11248                None,
11249                false,
11250                false,
11251                window,
11252                cx,
11253            );
11254            workspace.add_item(
11255                pane.clone(),
11256                Box::new(dirty_regular_buffer_2.clone()),
11257                None,
11258                false,
11259                false,
11260                window,
11261                cx,
11262            );
11263            workspace.add_item(
11264                pane.clone(),
11265                Box::new(dirty_multi_buffer.clone()),
11266                None,
11267                false,
11268                false,
11269                window,
11270                cx,
11271            );
11272        });
11273
11274        pane.update_in(cx, |pane, window, cx| {
11275            pane.activate_item(2, true, true, window, cx);
11276            assert_eq!(
11277                pane.active_item().unwrap().item_id(),
11278                dirty_multi_buffer.item_id(),
11279                "Should select the multi buffer in the pane"
11280            );
11281        });
11282        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11283            pane.close_active_item(
11284                &CloseActiveItem {
11285                    save_intent: None,
11286                    close_pinned: false,
11287                },
11288                window,
11289                cx,
11290            )
11291        });
11292        cx.background_executor.run_until_parked();
11293        assert!(
11294            !cx.has_pending_prompt(),
11295            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11296        );
11297        close_multi_buffer_task
11298            .await
11299            .expect("Closing multi buffer failed");
11300        pane.update(cx, |pane, cx| {
11301            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11302            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11303            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11304            assert_eq!(
11305                pane.items()
11306                    .map(|item| item.item_id())
11307                    .sorted()
11308                    .collect::<Vec<_>>(),
11309                vec![
11310                    dirty_regular_buffer.item_id(),
11311                    dirty_regular_buffer_2.item_id(),
11312                ],
11313                "Should have no multi buffer left in the pane"
11314            );
11315            assert!(dirty_regular_buffer.read(cx).is_dirty);
11316            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11317        });
11318    }
11319
11320    #[gpui::test]
11321    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11322        init_test(cx);
11323        let fs = FakeFs::new(cx.executor());
11324        let project = Project::test(fs, [], cx).await;
11325        let (workspace, cx) =
11326            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11327
11328        // Add a new panel to the right dock, opening the dock and setting the
11329        // focus to the new panel.
11330        let panel = workspace.update_in(cx, |workspace, window, cx| {
11331            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11332            workspace.add_panel(panel.clone(), window, cx);
11333
11334            workspace
11335                .right_dock()
11336                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11337
11338            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11339
11340            panel
11341        });
11342
11343        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11344        // panel to the next valid position which, in this case, is the left
11345        // dock.
11346        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11347        workspace.update(cx, |workspace, cx| {
11348            assert!(workspace.left_dock().read(cx).is_open());
11349            assert_eq!(panel.read(cx).position, DockPosition::Left);
11350        });
11351
11352        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11353        // panel to the next valid position which, in this case, is the bottom
11354        // dock.
11355        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11356        workspace.update(cx, |workspace, cx| {
11357            assert!(workspace.bottom_dock().read(cx).is_open());
11358            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11359        });
11360
11361        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11362        // around moving the panel to its initial position, the right dock.
11363        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11364        workspace.update(cx, |workspace, cx| {
11365            assert!(workspace.right_dock().read(cx).is_open());
11366            assert_eq!(panel.read(cx).position, DockPosition::Right);
11367        });
11368
11369        // Remove focus from the panel, ensuring that, if the panel is not
11370        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11371        // the panel's position, so the panel is still in the right dock.
11372        workspace.update_in(cx, |workspace, window, cx| {
11373            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11374        });
11375
11376        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11377        workspace.update(cx, |workspace, cx| {
11378            assert!(workspace.right_dock().read(cx).is_open());
11379            assert_eq!(panel.read(cx).position, DockPosition::Right);
11380        });
11381    }
11382
11383    #[gpui::test]
11384    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11385        init_test(cx);
11386
11387        let fs = FakeFs::new(cx.executor());
11388        let project = Project::test(fs, [], cx).await;
11389        let (workspace, cx) =
11390            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11391
11392        let item_1 = cx.new(|cx| {
11393            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11394        });
11395        workspace.update_in(cx, |workspace, window, cx| {
11396            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11397            workspace.move_item_to_pane_in_direction(
11398                &MoveItemToPaneInDirection {
11399                    direction: SplitDirection::Right,
11400                    focus: true,
11401                    clone: false,
11402                },
11403                window,
11404                cx,
11405            );
11406            workspace.move_item_to_pane_at_index(
11407                &MoveItemToPane {
11408                    destination: 3,
11409                    focus: true,
11410                    clone: false,
11411                },
11412                window,
11413                cx,
11414            );
11415
11416            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11417            assert_eq!(
11418                pane_items_paths(&workspace.active_pane, cx),
11419                vec!["first.txt".to_string()],
11420                "Single item was not moved anywhere"
11421            );
11422        });
11423
11424        let item_2 = cx.new(|cx| {
11425            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11426        });
11427        workspace.update_in(cx, |workspace, window, cx| {
11428            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11429            assert_eq!(
11430                pane_items_paths(&workspace.panes[0], cx),
11431                vec!["first.txt".to_string(), "second.txt".to_string()],
11432            );
11433            workspace.move_item_to_pane_in_direction(
11434                &MoveItemToPaneInDirection {
11435                    direction: SplitDirection::Right,
11436                    focus: true,
11437                    clone: false,
11438                },
11439                window,
11440                cx,
11441            );
11442
11443            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11444            assert_eq!(
11445                pane_items_paths(&workspace.panes[0], cx),
11446                vec!["first.txt".to_string()],
11447                "After moving, one item should be left in the original pane"
11448            );
11449            assert_eq!(
11450                pane_items_paths(&workspace.panes[1], cx),
11451                vec!["second.txt".to_string()],
11452                "New item should have been moved to the new pane"
11453            );
11454        });
11455
11456        let item_3 = cx.new(|cx| {
11457            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11458        });
11459        workspace.update_in(cx, |workspace, window, cx| {
11460            let original_pane = workspace.panes[0].clone();
11461            workspace.set_active_pane(&original_pane, window, cx);
11462            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11463            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11464            assert_eq!(
11465                pane_items_paths(&workspace.active_pane, cx),
11466                vec!["first.txt".to_string(), "third.txt".to_string()],
11467                "New pane should be ready to move one item out"
11468            );
11469
11470            workspace.move_item_to_pane_at_index(
11471                &MoveItemToPane {
11472                    destination: 3,
11473                    focus: true,
11474                    clone: false,
11475                },
11476                window,
11477                cx,
11478            );
11479            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11480            assert_eq!(
11481                pane_items_paths(&workspace.active_pane, cx),
11482                vec!["first.txt".to_string()],
11483                "After moving, one item should be left in the original pane"
11484            );
11485            assert_eq!(
11486                pane_items_paths(&workspace.panes[1], cx),
11487                vec!["second.txt".to_string()],
11488                "Previously created pane should be unchanged"
11489            );
11490            assert_eq!(
11491                pane_items_paths(&workspace.panes[2], cx),
11492                vec!["third.txt".to_string()],
11493                "New item should have been moved to the new pane"
11494            );
11495        });
11496    }
11497
11498    #[gpui::test]
11499    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11500        init_test(cx);
11501
11502        let fs = FakeFs::new(cx.executor());
11503        let project = Project::test(fs, [], cx).await;
11504        let (workspace, cx) =
11505            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11506
11507        let item_1 = cx.new(|cx| {
11508            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11509        });
11510        workspace.update_in(cx, |workspace, window, cx| {
11511            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11512            workspace.move_item_to_pane_in_direction(
11513                &MoveItemToPaneInDirection {
11514                    direction: SplitDirection::Right,
11515                    focus: true,
11516                    clone: true,
11517                },
11518                window,
11519                cx,
11520            );
11521            workspace.move_item_to_pane_at_index(
11522                &MoveItemToPane {
11523                    destination: 3,
11524                    focus: true,
11525                    clone: true,
11526                },
11527                window,
11528                cx,
11529            );
11530        });
11531        cx.run_until_parked();
11532
11533        workspace.update(cx, |workspace, cx| {
11534            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11535            for pane in workspace.panes() {
11536                assert_eq!(
11537                    pane_items_paths(pane, cx),
11538                    vec!["first.txt".to_string()],
11539                    "Single item exists in all panes"
11540                );
11541            }
11542        });
11543
11544        // verify that the active pane has been updated after waiting for the
11545        // pane focus event to fire and resolve
11546        workspace.read_with(cx, |workspace, _app| {
11547            assert_eq!(
11548                workspace.active_pane(),
11549                &workspace.panes[2],
11550                "The third pane should be the active one: {:?}",
11551                workspace.panes
11552            );
11553        })
11554    }
11555
11556    mod register_project_item_tests {
11557
11558        use super::*;
11559
11560        // View
11561        struct TestPngItemView {
11562            focus_handle: FocusHandle,
11563        }
11564        // Model
11565        struct TestPngItem {}
11566
11567        impl project::ProjectItem for TestPngItem {
11568            fn try_open(
11569                _project: &Entity<Project>,
11570                path: &ProjectPath,
11571                cx: &mut App,
11572            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11573                if path.path.extension().unwrap() == "png" {
11574                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11575                } else {
11576                    None
11577                }
11578            }
11579
11580            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11581                None
11582            }
11583
11584            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11585                None
11586            }
11587
11588            fn is_dirty(&self) -> bool {
11589                false
11590            }
11591        }
11592
11593        impl Item for TestPngItemView {
11594            type Event = ();
11595            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11596                "".into()
11597            }
11598        }
11599        impl EventEmitter<()> for TestPngItemView {}
11600        impl Focusable for TestPngItemView {
11601            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11602                self.focus_handle.clone()
11603            }
11604        }
11605
11606        impl Render for TestPngItemView {
11607            fn render(
11608                &mut self,
11609                _window: &mut Window,
11610                _cx: &mut Context<Self>,
11611            ) -> impl IntoElement {
11612                Empty
11613            }
11614        }
11615
11616        impl ProjectItem for TestPngItemView {
11617            type Item = TestPngItem;
11618
11619            fn for_project_item(
11620                _project: Entity<Project>,
11621                _pane: Option<&Pane>,
11622                _item: Entity<Self::Item>,
11623                _: &mut Window,
11624                cx: &mut Context<Self>,
11625            ) -> Self
11626            where
11627                Self: Sized,
11628            {
11629                Self {
11630                    focus_handle: cx.focus_handle(),
11631                }
11632            }
11633        }
11634
11635        // View
11636        struct TestIpynbItemView {
11637            focus_handle: FocusHandle,
11638        }
11639        // Model
11640        struct TestIpynbItem {}
11641
11642        impl project::ProjectItem for TestIpynbItem {
11643            fn try_open(
11644                _project: &Entity<Project>,
11645                path: &ProjectPath,
11646                cx: &mut App,
11647            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11648                if path.path.extension().unwrap() == "ipynb" {
11649                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11650                } else {
11651                    None
11652                }
11653            }
11654
11655            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11656                None
11657            }
11658
11659            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11660                None
11661            }
11662
11663            fn is_dirty(&self) -> bool {
11664                false
11665            }
11666        }
11667
11668        impl Item for TestIpynbItemView {
11669            type Event = ();
11670            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11671                "".into()
11672            }
11673        }
11674        impl EventEmitter<()> for TestIpynbItemView {}
11675        impl Focusable for TestIpynbItemView {
11676            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11677                self.focus_handle.clone()
11678            }
11679        }
11680
11681        impl Render for TestIpynbItemView {
11682            fn render(
11683                &mut self,
11684                _window: &mut Window,
11685                _cx: &mut Context<Self>,
11686            ) -> impl IntoElement {
11687                Empty
11688            }
11689        }
11690
11691        impl ProjectItem for TestIpynbItemView {
11692            type Item = TestIpynbItem;
11693
11694            fn for_project_item(
11695                _project: Entity<Project>,
11696                _pane: Option<&Pane>,
11697                _item: Entity<Self::Item>,
11698                _: &mut Window,
11699                cx: &mut Context<Self>,
11700            ) -> Self
11701            where
11702                Self: Sized,
11703            {
11704                Self {
11705                    focus_handle: cx.focus_handle(),
11706                }
11707            }
11708        }
11709
11710        struct TestAlternatePngItemView {
11711            focus_handle: FocusHandle,
11712        }
11713
11714        impl Item for TestAlternatePngItemView {
11715            type Event = ();
11716            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11717                "".into()
11718            }
11719        }
11720
11721        impl EventEmitter<()> for TestAlternatePngItemView {}
11722        impl Focusable for TestAlternatePngItemView {
11723            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11724                self.focus_handle.clone()
11725            }
11726        }
11727
11728        impl Render for TestAlternatePngItemView {
11729            fn render(
11730                &mut self,
11731                _window: &mut Window,
11732                _cx: &mut Context<Self>,
11733            ) -> impl IntoElement {
11734                Empty
11735            }
11736        }
11737
11738        impl ProjectItem for TestAlternatePngItemView {
11739            type Item = TestPngItem;
11740
11741            fn for_project_item(
11742                _project: Entity<Project>,
11743                _pane: Option<&Pane>,
11744                _item: Entity<Self::Item>,
11745                _: &mut Window,
11746                cx: &mut Context<Self>,
11747            ) -> Self
11748            where
11749                Self: Sized,
11750            {
11751                Self {
11752                    focus_handle: cx.focus_handle(),
11753                }
11754            }
11755        }
11756
11757        #[gpui::test]
11758        async fn test_register_project_item(cx: &mut TestAppContext) {
11759            init_test(cx);
11760
11761            cx.update(|cx| {
11762                register_project_item::<TestPngItemView>(cx);
11763                register_project_item::<TestIpynbItemView>(cx);
11764            });
11765
11766            let fs = FakeFs::new(cx.executor());
11767            fs.insert_tree(
11768                "/root1",
11769                json!({
11770                    "one.png": "BINARYDATAHERE",
11771                    "two.ipynb": "{ totally a notebook }",
11772                    "three.txt": "editing text, sure why not?"
11773                }),
11774            )
11775            .await;
11776
11777            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11778            let (workspace, cx) =
11779                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11780
11781            let worktree_id = project.update(cx, |project, cx| {
11782                project.worktrees(cx).next().unwrap().read(cx).id()
11783            });
11784
11785            let handle = workspace
11786                .update_in(cx, |workspace, window, cx| {
11787                    let project_path = (worktree_id, rel_path("one.png"));
11788                    workspace.open_path(project_path, None, true, window, cx)
11789                })
11790                .await
11791                .unwrap();
11792
11793            // Now we can check if the handle we got back errored or not
11794            assert_eq!(
11795                handle.to_any_view().entity_type(),
11796                TypeId::of::<TestPngItemView>()
11797            );
11798
11799            let handle = workspace
11800                .update_in(cx, |workspace, window, cx| {
11801                    let project_path = (worktree_id, rel_path("two.ipynb"));
11802                    workspace.open_path(project_path, None, true, window, cx)
11803                })
11804                .await
11805                .unwrap();
11806
11807            assert_eq!(
11808                handle.to_any_view().entity_type(),
11809                TypeId::of::<TestIpynbItemView>()
11810            );
11811
11812            let handle = workspace
11813                .update_in(cx, |workspace, window, cx| {
11814                    let project_path = (worktree_id, rel_path("three.txt"));
11815                    workspace.open_path(project_path, None, true, window, cx)
11816                })
11817                .await;
11818            assert!(handle.is_err());
11819        }
11820
11821        #[gpui::test]
11822        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11823            init_test(cx);
11824
11825            cx.update(|cx| {
11826                register_project_item::<TestPngItemView>(cx);
11827                register_project_item::<TestAlternatePngItemView>(cx);
11828            });
11829
11830            let fs = FakeFs::new(cx.executor());
11831            fs.insert_tree(
11832                "/root1",
11833                json!({
11834                    "one.png": "BINARYDATAHERE",
11835                    "two.ipynb": "{ totally a notebook }",
11836                    "three.txt": "editing text, sure why not?"
11837                }),
11838            )
11839            .await;
11840            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11841            let (workspace, cx) =
11842                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11843            let worktree_id = project.update(cx, |project, cx| {
11844                project.worktrees(cx).next().unwrap().read(cx).id()
11845            });
11846
11847            let handle = workspace
11848                .update_in(cx, |workspace, window, cx| {
11849                    let project_path = (worktree_id, rel_path("one.png"));
11850                    workspace.open_path(project_path, None, true, window, cx)
11851                })
11852                .await
11853                .unwrap();
11854
11855            // This _must_ be the second item registered
11856            assert_eq!(
11857                handle.to_any_view().entity_type(),
11858                TypeId::of::<TestAlternatePngItemView>()
11859            );
11860
11861            let handle = workspace
11862                .update_in(cx, |workspace, window, cx| {
11863                    let project_path = (worktree_id, rel_path("three.txt"));
11864                    workspace.open_path(project_path, None, true, window, cx)
11865                })
11866                .await;
11867            assert!(handle.is_err());
11868        }
11869    }
11870
11871    #[gpui::test]
11872    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11873        init_test(cx);
11874
11875        let fs = FakeFs::new(cx.executor());
11876        let project = Project::test(fs, [], cx).await;
11877        let (workspace, _cx) =
11878            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11879
11880        // Test with status bar shown (default)
11881        workspace.read_with(cx, |workspace, cx| {
11882            let visible = workspace.status_bar_visible(cx);
11883            assert!(visible, "Status bar should be visible by default");
11884        });
11885
11886        // Test with status bar hidden
11887        cx.update_global(|store: &mut SettingsStore, cx| {
11888            store.update_user_settings(cx, |settings| {
11889                settings.status_bar.get_or_insert_default().show = Some(false);
11890            });
11891        });
11892
11893        workspace.read_with(cx, |workspace, cx| {
11894            let visible = workspace.status_bar_visible(cx);
11895            assert!(!visible, "Status bar should be hidden when show is false");
11896        });
11897
11898        // Test with status bar shown explicitly
11899        cx.update_global(|store: &mut SettingsStore, cx| {
11900            store.update_user_settings(cx, |settings| {
11901                settings.status_bar.get_or_insert_default().show = Some(true);
11902            });
11903        });
11904
11905        workspace.read_with(cx, |workspace, cx| {
11906            let visible = workspace.status_bar_visible(cx);
11907            assert!(visible, "Status bar should be visible when show is true");
11908        });
11909    }
11910
11911    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11912        pane.read(cx)
11913            .items()
11914            .flat_map(|item| {
11915                item.project_paths(cx)
11916                    .into_iter()
11917                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11918            })
11919            .collect()
11920    }
11921
11922    pub fn init_test(cx: &mut TestAppContext) {
11923        cx.update(|cx| {
11924            let settings_store = SettingsStore::test(cx);
11925            cx.set_global(settings_store);
11926            theme::init(theme::LoadThemes::JustBase, cx);
11927        });
11928    }
11929
11930    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11931        let item = TestProjectItem::new(id, path, cx);
11932        item.update(cx, |item, _| {
11933            item.is_dirty = true;
11934        });
11935        item
11936    }
11937}