workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6pub mod notifications;
    7pub mod pane;
    8pub mod pane_group;
    9mod path_list;
   10mod persistence;
   11pub mod searchable;
   12mod security_modal;
   13pub mod shared_screen;
   14mod status_bar;
   15pub mod tasks;
   16mod theme_preview;
   17mod toast_layer;
   18mod toolbar;
   19pub mod utility_pane;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use path_list::PathList;
   26pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   27
   28use anyhow::{Context as _, Result, anyhow};
   29use call::{ActiveCall, call_settings::CallSettings};
   30use client::{
   31    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   32    proto::{self, ErrorCode, PanelId, PeerId},
   33};
   34use collections::{HashMap, HashSet, hash_map};
   35use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   36use feature_flags::{AgentV2FeatureFlag, FeatureFlagAppExt};
   37use futures::{
   38    Future, FutureExt, StreamExt,
   39    channel::{
   40        mpsc::{self, UnboundedReceiver, UnboundedSender},
   41        oneshot,
   42    },
   43    future::{Shared, try_join_all},
   44};
   45use gpui::{
   46    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   47    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   48    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   49    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   50    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   51    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   52};
   53pub use history_manager::*;
   54pub use item::{
   55    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   56    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   57};
   58use itertools::Itertools;
   59use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   60pub use modal_layer::*;
   61use node_runtime::NodeRuntime;
   62use notifications::{
   63    DetachAndPromptErr, Notifications, dismiss_app_notification,
   64    simple_message_notification::MessageNotification,
   65};
   66pub use pane::*;
   67pub use pane_group::{
   68    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   69    SplitDirection,
   70};
   71use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   72pub use persistence::{
   73    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   74    model::{ItemId, SerializedWorkspaceLocation},
   75};
   76use postage::stream::Stream;
   77use project::{
   78    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   79    WorktreeSettings,
   80    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   81    project_settings::ProjectSettings,
   82    toolchain_store::ToolchainStoreEvent,
   83    trusted_worktrees::{TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Clears all notifications.
  217        ClearAllNotifications,
  218        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  219        ClearNavigationHistory,
  220        /// Closes the active dock.
  221        CloseActiveDock,
  222        /// Closes all docks.
  223        CloseAllDocks,
  224        /// Toggles all docks.
  225        ToggleAllDocks,
  226        /// Closes the current window.
  227        CloseWindow,
  228        /// Opens the feedback dialog.
  229        Feedback,
  230        /// Follows the next collaborator in the session.
  231        FollowNextCollaborator,
  232        /// Moves the focused panel to the next position.
  233        MoveFocusedPanelToNextPosition,
  234        /// Opens a new terminal in the center.
  235        NewCenterTerminal,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new terminal.
  245        NewTerminal,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Zooms in on the active pane.
  285        ZoomIn,
  286        /// Zooms out of the active pane.
  287        ZoomOut,
  288        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  289        /// If the modal is shown already, closes it without trusting any worktree.
  290        ToggleWorktreeSecurity,
  291        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  292        /// Requires restart to take effect on already opened projects.
  293        ClearTrustedWorktrees,
  294        /// Stops following a collaborator.
  295        Unfollow,
  296        /// Restores the banner.
  297        RestoreBanner,
  298        /// Toggles expansion of the selected item.
  299        ToggleExpandItem,
  300    ]
  301);
  302
  303/// Activates a specific pane by its index.
  304#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306pub struct ActivatePane(pub usize);
  307
  308/// Moves an item to a specific pane by index.
  309#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  310#[action(namespace = workspace)]
  311#[serde(deny_unknown_fields)]
  312pub struct MoveItemToPane {
  313    #[serde(default = "default_1")]
  314    pub destination: usize,
  315    #[serde(default = "default_true")]
  316    pub focus: bool,
  317    #[serde(default)]
  318    pub clone: bool,
  319}
  320
  321fn default_1() -> usize {
  322    1
  323}
  324
  325/// Moves an item to a pane in the specified direction.
  326#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct MoveItemToPaneInDirection {
  330    #[serde(default = "default_right")]
  331    pub direction: SplitDirection,
  332    #[serde(default = "default_true")]
  333    pub focus: bool,
  334    #[serde(default)]
  335    pub clone: bool,
  336}
  337
  338/// Creates a new file in a split of the desired direction.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct NewFileSplit(pub SplitDirection);
  343
  344fn default_right() -> SplitDirection {
  345    SplitDirection::Right
  346}
  347
  348/// Saves all open files in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct SaveAll {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Saves the current file with the specified options.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct Save {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Closes all items and panes in the workspace.
  367#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct CloseAllItemsAndPanes {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all inactive tabs and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseInactiveTabsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Sends a sequence of keystrokes to the active element.
  385#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387pub struct SendKeystrokes(pub String);
  388
  389actions!(
  390    project_symbols,
  391    [
  392        /// Toggles the project symbols search.
  393        #[action(name = "Toggle")]
  394        ToggleProjectSymbols
  395    ]
  396);
  397
  398/// Toggles the file finder interface.
  399#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  400#[action(namespace = file_finder, name = "Toggle")]
  401#[serde(deny_unknown_fields)]
  402pub struct ToggleFileFinder {
  403    #[serde(default)]
  404    pub separate_history: bool,
  405}
  406
  407/// Increases size of a currently focused dock by a given amount of pixels.
  408#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct IncreaseActiveDockSize {
  412    /// For 0px parameter, uses UI font size value.
  413    #[serde(default)]
  414    pub px: u32,
  415}
  416
  417/// Decreases size of a currently focused dock by a given amount of pixels.
  418#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct DecreaseActiveDockSize {
  422    /// For 0px parameter, uses UI font size value.
  423    #[serde(default)]
  424    pub px: u32,
  425}
  426
  427/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  428#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct IncreaseOpenDocksSize {
  432    /// For 0px parameter, uses UI font size value.
  433    #[serde(default)]
  434    pub px: u32,
  435}
  436
  437/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  438#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct DecreaseOpenDocksSize {
  442    /// For 0px parameter, uses UI font size value.
  443    #[serde(default)]
  444    pub px: u32,
  445}
  446
  447actions!(
  448    workspace,
  449    [
  450        /// Activates the pane to the left.
  451        ActivatePaneLeft,
  452        /// Activates the pane to the right.
  453        ActivatePaneRight,
  454        /// Activates the pane above.
  455        ActivatePaneUp,
  456        /// Activates the pane below.
  457        ActivatePaneDown,
  458        /// Swaps the current pane with the one to the left.
  459        SwapPaneLeft,
  460        /// Swaps the current pane with the one to the right.
  461        SwapPaneRight,
  462        /// Swaps the current pane with the one above.
  463        SwapPaneUp,
  464        /// Swaps the current pane with the one below.
  465        SwapPaneDown,
  466        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  467        SwapPaneAdjacent,
  468        /// Move the current pane to be at the far left.
  469        MovePaneLeft,
  470        /// Move the current pane to be at the far right.
  471        MovePaneRight,
  472        /// Move the current pane to be at the very top.
  473        MovePaneUp,
  474        /// Move the current pane to be at the very bottom.
  475        MovePaneDown,
  476    ]
  477);
  478
  479#[derive(PartialEq, Eq, Debug)]
  480pub enum CloseIntent {
  481    /// Quit the program entirely.
  482    Quit,
  483    /// Close a window.
  484    CloseWindow,
  485    /// Replace the workspace in an existing window.
  486    ReplaceWindow,
  487}
  488
  489#[derive(Clone)]
  490pub struct Toast {
  491    id: NotificationId,
  492    msg: Cow<'static, str>,
  493    autohide: bool,
  494    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  495}
  496
  497impl Toast {
  498    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  499        Toast {
  500            id,
  501            msg: msg.into(),
  502            on_click: None,
  503            autohide: false,
  504        }
  505    }
  506
  507    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  508    where
  509        M: Into<Cow<'static, str>>,
  510        F: Fn(&mut Window, &mut App) + 'static,
  511    {
  512        self.on_click = Some((message.into(), Arc::new(on_click)));
  513        self
  514    }
  515
  516    pub fn autohide(mut self) -> Self {
  517        self.autohide = true;
  518        self
  519    }
  520}
  521
  522impl PartialEq for Toast {
  523    fn eq(&self, other: &Self) -> bool {
  524        self.id == other.id
  525            && self.msg == other.msg
  526            && self.on_click.is_some() == other.on_click.is_some()
  527    }
  528}
  529
  530/// Opens a new terminal with the specified working directory.
  531#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  532#[action(namespace = workspace)]
  533#[serde(deny_unknown_fields)]
  534pub struct OpenTerminal {
  535    pub working_directory: PathBuf,
  536}
  537
  538#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  539pub struct WorkspaceId(i64);
  540
  541impl StaticColumnCount for WorkspaceId {}
  542impl Bind for WorkspaceId {
  543    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  544        self.0.bind(statement, start_index)
  545    }
  546}
  547impl Column for WorkspaceId {
  548    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  549        i64::column(statement, start_index)
  550            .map(|(i, next_index)| (Self(i), next_index))
  551            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  552    }
  553}
  554impl From<WorkspaceId> for i64 {
  555    fn from(val: WorkspaceId) -> Self {
  556        val.0
  557    }
  558}
  559
  560fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  561    let paths = cx.prompt_for_paths(options);
  562    cx.spawn(
  563        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  564            Ok(Some(paths)) => {
  565                cx.update(|cx| {
  566                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  567                })
  568                .ok();
  569            }
  570            Ok(None) => {}
  571            Err(err) => {
  572                util::log_err(&err);
  573                cx.update(|cx| {
  574                    if let Some(workspace_window) = cx
  575                        .active_window()
  576                        .and_then(|window| window.downcast::<Workspace>())
  577                    {
  578                        workspace_window
  579                            .update(cx, |workspace, _, cx| {
  580                                workspace.show_portal_error(err.to_string(), cx);
  581                            })
  582                            .ok();
  583                    }
  584                })
  585                .ok();
  586            }
  587        },
  588    )
  589    .detach();
  590}
  591
  592pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  593    component::init();
  594    theme_preview::init(cx);
  595    toast_layer::init(cx);
  596    history_manager::init(cx);
  597
  598    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  599        .on_action(|_: &Reload, cx| reload(cx))
  600        .on_action({
  601            let app_state = Arc::downgrade(&app_state);
  602            move |_: &Open, cx: &mut App| {
  603                if let Some(app_state) = app_state.upgrade() {
  604                    prompt_and_open_paths(
  605                        app_state,
  606                        PathPromptOptions {
  607                            files: true,
  608                            directories: true,
  609                            multiple: true,
  610                            prompt: None,
  611                        },
  612                        cx,
  613                    );
  614                }
  615            }
  616        })
  617        .on_action({
  618            let app_state = Arc::downgrade(&app_state);
  619            move |_: &OpenFiles, cx: &mut App| {
  620                let directories = cx.can_select_mixed_files_and_dirs();
  621                if let Some(app_state) = app_state.upgrade() {
  622                    prompt_and_open_paths(
  623                        app_state,
  624                        PathPromptOptions {
  625                            files: true,
  626                            directories,
  627                            multiple: true,
  628                            prompt: None,
  629                        },
  630                        cx,
  631                    );
  632                }
  633            }
  634        });
  635}
  636
  637type BuildProjectItemFn =
  638    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  639
  640type BuildProjectItemForPathFn =
  641    fn(
  642        &Entity<Project>,
  643        &ProjectPath,
  644        &mut Window,
  645        &mut App,
  646    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  647
  648#[derive(Clone, Default)]
  649struct ProjectItemRegistry {
  650    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  651    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  652}
  653
  654impl ProjectItemRegistry {
  655    fn register<T: ProjectItem>(&mut self) {
  656        self.build_project_item_fns_by_type.insert(
  657            TypeId::of::<T::Item>(),
  658            |item, project, pane, window, cx| {
  659                let item = item.downcast().unwrap();
  660                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  661                    as Box<dyn ItemHandle>
  662            },
  663        );
  664        self.build_project_item_for_path_fns
  665            .push(|project, project_path, window, cx| {
  666                let project_path = project_path.clone();
  667                let is_file = project
  668                    .read(cx)
  669                    .entry_for_path(&project_path, cx)
  670                    .is_some_and(|entry| entry.is_file());
  671                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  672                let is_local = project.read(cx).is_local();
  673                let project_item =
  674                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  675                let project = project.clone();
  676                Some(window.spawn(cx, async move |cx| {
  677                    match project_item.await.with_context(|| {
  678                        format!(
  679                            "opening project path {:?}",
  680                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  681                        )
  682                    }) {
  683                        Ok(project_item) => {
  684                            let project_item = project_item;
  685                            let project_entry_id: Option<ProjectEntryId> =
  686                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  687                            let build_workspace_item = Box::new(
  688                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  689                                    Box::new(cx.new(|cx| {
  690                                        T::for_project_item(
  691                                            project,
  692                                            Some(pane),
  693                                            project_item,
  694                                            window,
  695                                            cx,
  696                                        )
  697                                    })) as Box<dyn ItemHandle>
  698                                },
  699                            ) as Box<_>;
  700                            Ok((project_entry_id, build_workspace_item))
  701                        }
  702                        Err(e) => {
  703                            log::warn!("Failed to open a project item: {e:#}");
  704                            if e.error_code() == ErrorCode::Internal {
  705                                if let Some(abs_path) =
  706                                    entry_abs_path.as_deref().filter(|_| is_file)
  707                                {
  708                                    if let Some(broken_project_item_view) =
  709                                        cx.update(|window, cx| {
  710                                            T::for_broken_project_item(
  711                                                abs_path, is_local, &e, window, cx,
  712                                            )
  713                                        })?
  714                                    {
  715                                        let build_workspace_item = Box::new(
  716                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  717                                                cx.new(|_| broken_project_item_view).boxed_clone()
  718                                            },
  719                                        )
  720                                        as Box<_>;
  721                                        return Ok((None, build_workspace_item));
  722                                    }
  723                                }
  724                            }
  725                            Err(e)
  726                        }
  727                    }
  728                }))
  729            });
  730    }
  731
  732    fn open_path(
  733        &self,
  734        project: &Entity<Project>,
  735        path: &ProjectPath,
  736        window: &mut Window,
  737        cx: &mut App,
  738    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  739        let Some(open_project_item) = self
  740            .build_project_item_for_path_fns
  741            .iter()
  742            .rev()
  743            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  744        else {
  745            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  746        };
  747        open_project_item
  748    }
  749
  750    fn build_item<T: project::ProjectItem>(
  751        &self,
  752        item: Entity<T>,
  753        project: Entity<Project>,
  754        pane: Option<&Pane>,
  755        window: &mut Window,
  756        cx: &mut App,
  757    ) -> Option<Box<dyn ItemHandle>> {
  758        let build = self
  759            .build_project_item_fns_by_type
  760            .get(&TypeId::of::<T>())?;
  761        Some(build(item.into_any(), project, pane, window, cx))
  762    }
  763}
  764
  765type WorkspaceItemBuilder =
  766    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  767
  768impl Global for ProjectItemRegistry {}
  769
  770/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  771/// items will get a chance to open the file, starting from the project item that
  772/// was added last.
  773pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  774    cx.default_global::<ProjectItemRegistry>().register::<I>();
  775}
  776
  777#[derive(Default)]
  778pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  779
  780struct FollowableViewDescriptor {
  781    from_state_proto: fn(
  782        Entity<Workspace>,
  783        ViewId,
  784        &mut Option<proto::view::Variant>,
  785        &mut Window,
  786        &mut App,
  787    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  788    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  789}
  790
  791impl Global for FollowableViewRegistry {}
  792
  793impl FollowableViewRegistry {
  794    pub fn register<I: FollowableItem>(cx: &mut App) {
  795        cx.default_global::<Self>().0.insert(
  796            TypeId::of::<I>(),
  797            FollowableViewDescriptor {
  798                from_state_proto: |workspace, id, state, window, cx| {
  799                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  800                        cx.foreground_executor()
  801                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  802                    })
  803                },
  804                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  805            },
  806        );
  807    }
  808
  809    pub fn from_state_proto(
  810        workspace: Entity<Workspace>,
  811        view_id: ViewId,
  812        mut state: Option<proto::view::Variant>,
  813        window: &mut Window,
  814        cx: &mut App,
  815    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  816        cx.update_default_global(|this: &mut Self, cx| {
  817            this.0.values().find_map(|descriptor| {
  818                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  819            })
  820        })
  821    }
  822
  823    pub fn to_followable_view(
  824        view: impl Into<AnyView>,
  825        cx: &App,
  826    ) -> Option<Box<dyn FollowableItemHandle>> {
  827        let this = cx.try_global::<Self>()?;
  828        let view = view.into();
  829        let descriptor = this.0.get(&view.entity_type())?;
  830        Some((descriptor.to_followable_view)(&view))
  831    }
  832}
  833
  834#[derive(Copy, Clone)]
  835struct SerializableItemDescriptor {
  836    deserialize: fn(
  837        Entity<Project>,
  838        WeakEntity<Workspace>,
  839        WorkspaceId,
  840        ItemId,
  841        &mut Window,
  842        &mut Context<Pane>,
  843    ) -> Task<Result<Box<dyn ItemHandle>>>,
  844    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  845    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  846}
  847
  848#[derive(Default)]
  849struct SerializableItemRegistry {
  850    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  851    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  852}
  853
  854impl Global for SerializableItemRegistry {}
  855
  856impl SerializableItemRegistry {
  857    fn deserialize(
  858        item_kind: &str,
  859        project: Entity<Project>,
  860        workspace: WeakEntity<Workspace>,
  861        workspace_id: WorkspaceId,
  862        item_item: ItemId,
  863        window: &mut Window,
  864        cx: &mut Context<Pane>,
  865    ) -> Task<Result<Box<dyn ItemHandle>>> {
  866        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  867            return Task::ready(Err(anyhow!(
  868                "cannot deserialize {}, descriptor not found",
  869                item_kind
  870            )));
  871        };
  872
  873        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  874    }
  875
  876    fn cleanup(
  877        item_kind: &str,
  878        workspace_id: WorkspaceId,
  879        loaded_items: Vec<ItemId>,
  880        window: &mut Window,
  881        cx: &mut App,
  882    ) -> Task<Result<()>> {
  883        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  884            return Task::ready(Err(anyhow!(
  885                "cannot cleanup {}, descriptor not found",
  886                item_kind
  887            )));
  888        };
  889
  890        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  891    }
  892
  893    fn view_to_serializable_item_handle(
  894        view: AnyView,
  895        cx: &App,
  896    ) -> Option<Box<dyn SerializableItemHandle>> {
  897        let this = cx.try_global::<Self>()?;
  898        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  899        Some((descriptor.view_to_serializable_item)(view))
  900    }
  901
  902    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  903        let this = cx.try_global::<Self>()?;
  904        this.descriptors_by_kind.get(item_kind).copied()
  905    }
  906}
  907
  908pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  909    let serialized_item_kind = I::serialized_item_kind();
  910
  911    let registry = cx.default_global::<SerializableItemRegistry>();
  912    let descriptor = SerializableItemDescriptor {
  913        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  914            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  915            cx.foreground_executor()
  916                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  917        },
  918        cleanup: |workspace_id, loaded_items, window, cx| {
  919            I::cleanup(workspace_id, loaded_items, window, cx)
  920        },
  921        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  922    };
  923    registry
  924        .descriptors_by_kind
  925        .insert(Arc::from(serialized_item_kind), descriptor);
  926    registry
  927        .descriptors_by_type
  928        .insert(TypeId::of::<I>(), descriptor);
  929}
  930
  931pub struct AppState {
  932    pub languages: Arc<LanguageRegistry>,
  933    pub client: Arc<Client>,
  934    pub user_store: Entity<UserStore>,
  935    pub workspace_store: Entity<WorkspaceStore>,
  936    pub fs: Arc<dyn fs::Fs>,
  937    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  938    pub node_runtime: NodeRuntime,
  939    pub session: Entity<AppSession>,
  940}
  941
  942struct GlobalAppState(Weak<AppState>);
  943
  944impl Global for GlobalAppState {}
  945
  946pub struct WorkspaceStore {
  947    workspaces: HashSet<WindowHandle<Workspace>>,
  948    client: Arc<Client>,
  949    _subscriptions: Vec<client::Subscription>,
  950}
  951
  952#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  953pub enum CollaboratorId {
  954    PeerId(PeerId),
  955    Agent,
  956}
  957
  958impl From<PeerId> for CollaboratorId {
  959    fn from(peer_id: PeerId) -> Self {
  960        CollaboratorId::PeerId(peer_id)
  961    }
  962}
  963
  964impl From<&PeerId> for CollaboratorId {
  965    fn from(peer_id: &PeerId) -> Self {
  966        CollaboratorId::PeerId(*peer_id)
  967    }
  968}
  969
  970#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  971struct Follower {
  972    project_id: Option<u64>,
  973    peer_id: PeerId,
  974}
  975
  976impl AppState {
  977    #[track_caller]
  978    pub fn global(cx: &App) -> Weak<Self> {
  979        cx.global::<GlobalAppState>().0.clone()
  980    }
  981    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  982        cx.try_global::<GlobalAppState>()
  983            .map(|state| state.0.clone())
  984    }
  985    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  986        cx.set_global(GlobalAppState(state));
  987    }
  988
  989    #[cfg(any(test, feature = "test-support"))]
  990    pub fn test(cx: &mut App) -> Arc<Self> {
  991        use fs::Fs;
  992        use node_runtime::NodeRuntime;
  993        use session::Session;
  994        use settings::SettingsStore;
  995
  996        if !cx.has_global::<SettingsStore>() {
  997            let settings_store = SettingsStore::test(cx);
  998            cx.set_global(settings_store);
  999        }
 1000
 1001        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1002        <dyn Fs>::set_global(fs.clone(), cx);
 1003        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1004        let clock = Arc::new(clock::FakeSystemClock::new());
 1005        let http_client = http_client::FakeHttpClient::with_404_response();
 1006        let client = Client::new(clock, http_client, cx);
 1007        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1008        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1009        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1010
 1011        theme::init(theme::LoadThemes::JustBase, cx);
 1012        client::init(&client, cx);
 1013
 1014        Arc::new(Self {
 1015            client,
 1016            fs,
 1017            languages,
 1018            user_store,
 1019            workspace_store,
 1020            node_runtime: NodeRuntime::unavailable(),
 1021            build_window_options: |_, _| Default::default(),
 1022            session,
 1023        })
 1024    }
 1025}
 1026
 1027struct DelayedDebouncedEditAction {
 1028    task: Option<Task<()>>,
 1029    cancel_channel: Option<oneshot::Sender<()>>,
 1030}
 1031
 1032impl DelayedDebouncedEditAction {
 1033    fn new() -> DelayedDebouncedEditAction {
 1034        DelayedDebouncedEditAction {
 1035            task: None,
 1036            cancel_channel: None,
 1037        }
 1038    }
 1039
 1040    fn fire_new<F>(
 1041        &mut self,
 1042        delay: Duration,
 1043        window: &mut Window,
 1044        cx: &mut Context<Workspace>,
 1045        func: F,
 1046    ) where
 1047        F: 'static
 1048            + Send
 1049            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1050    {
 1051        if let Some(channel) = self.cancel_channel.take() {
 1052            _ = channel.send(());
 1053        }
 1054
 1055        let (sender, mut receiver) = oneshot::channel::<()>();
 1056        self.cancel_channel = Some(sender);
 1057
 1058        let previous_task = self.task.take();
 1059        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1060            let mut timer = cx.background_executor().timer(delay).fuse();
 1061            if let Some(previous_task) = previous_task {
 1062                previous_task.await;
 1063            }
 1064
 1065            futures::select_biased! {
 1066                _ = receiver => return,
 1067                    _ = timer => {}
 1068            }
 1069
 1070            if let Some(result) = workspace
 1071                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1072                .log_err()
 1073            {
 1074                result.await.log_err();
 1075            }
 1076        }));
 1077    }
 1078}
 1079
 1080pub enum Event {
 1081    PaneAdded(Entity<Pane>),
 1082    PaneRemoved,
 1083    ItemAdded {
 1084        item: Box<dyn ItemHandle>,
 1085    },
 1086    ActiveItemChanged,
 1087    ItemRemoved {
 1088        item_id: EntityId,
 1089    },
 1090    UserSavedItem {
 1091        pane: WeakEntity<Pane>,
 1092        item: Box<dyn WeakItemHandle>,
 1093        save_intent: SaveIntent,
 1094    },
 1095    ContactRequestedJoin(u64),
 1096    WorkspaceCreated(WeakEntity<Workspace>),
 1097    OpenBundledFile {
 1098        text: Cow<'static, str>,
 1099        title: &'static str,
 1100        language: &'static str,
 1101    },
 1102    ZoomChanged,
 1103    ModalOpened,
 1104}
 1105
 1106#[derive(Debug)]
 1107pub enum OpenVisible {
 1108    All,
 1109    None,
 1110    OnlyFiles,
 1111    OnlyDirectories,
 1112}
 1113
 1114enum WorkspaceLocation {
 1115    // Valid local paths or SSH project to serialize
 1116    Location(SerializedWorkspaceLocation, PathList),
 1117    // No valid location found hence clear session id
 1118    DetachFromSession,
 1119    // No valid location found to serialize
 1120    None,
 1121}
 1122
 1123type PromptForNewPath = Box<
 1124    dyn Fn(
 1125        &mut Workspace,
 1126        DirectoryLister,
 1127        &mut Window,
 1128        &mut Context<Workspace>,
 1129    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1130>;
 1131
 1132type PromptForOpenPath = Box<
 1133    dyn Fn(
 1134        &mut Workspace,
 1135        DirectoryLister,
 1136        &mut Window,
 1137        &mut Context<Workspace>,
 1138    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1139>;
 1140
 1141#[derive(Default)]
 1142struct DispatchingKeystrokes {
 1143    dispatched: HashSet<Vec<Keystroke>>,
 1144    queue: VecDeque<Keystroke>,
 1145    task: Option<Shared<Task<()>>>,
 1146}
 1147
 1148/// Collects everything project-related for a certain window opened.
 1149/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1150///
 1151/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1152/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1153/// that can be used to register a global action to be triggered from any place in the window.
 1154pub struct Workspace {
 1155    weak_self: WeakEntity<Self>,
 1156    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1157    zoomed: Option<AnyWeakView>,
 1158    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1159    zoomed_position: Option<DockPosition>,
 1160    center: PaneGroup,
 1161    left_dock: Entity<Dock>,
 1162    bottom_dock: Entity<Dock>,
 1163    right_dock: Entity<Dock>,
 1164    panes: Vec<Entity<Pane>>,
 1165    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1166    active_pane: Entity<Pane>,
 1167    last_active_center_pane: Option<WeakEntity<Pane>>,
 1168    last_active_view_id: Option<proto::ViewId>,
 1169    status_bar: Entity<StatusBar>,
 1170    modal_layer: Entity<ModalLayer>,
 1171    toast_layer: Entity<ToastLayer>,
 1172    titlebar_item: Option<AnyView>,
 1173    notifications: Notifications,
 1174    suppressed_notifications: HashSet<NotificationId>,
 1175    project: Entity<Project>,
 1176    follower_states: HashMap<CollaboratorId, FollowerState>,
 1177    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1178    window_edited: bool,
 1179    last_window_title: Option<String>,
 1180    dirty_items: HashMap<EntityId, Subscription>,
 1181    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1182    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1183    database_id: Option<WorkspaceId>,
 1184    app_state: Arc<AppState>,
 1185    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1186    _subscriptions: Vec<Subscription>,
 1187    _apply_leader_updates: Task<Result<()>>,
 1188    _observe_current_user: Task<Result<()>>,
 1189    _schedule_serialize_workspace: Option<Task<()>>,
 1190    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1191    _schedule_serialize_worktree_trust: Task<()>,
 1192    pane_history_timestamp: Arc<AtomicUsize>,
 1193    bounds: Bounds<Pixels>,
 1194    pub centered_layout: bool,
 1195    bounds_save_task_queued: Option<Task<()>>,
 1196    on_prompt_for_new_path: Option<PromptForNewPath>,
 1197    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1198    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1199    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1200    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1201    _items_serializer: Task<Result<()>>,
 1202    session_id: Option<String>,
 1203    scheduled_tasks: Vec<Task<()>>,
 1204    last_open_dock_positions: Vec<DockPosition>,
 1205    removing: bool,
 1206    utility_panes: UtilityPaneState,
 1207}
 1208
 1209impl EventEmitter<Event> for Workspace {}
 1210
 1211#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1212pub struct ViewId {
 1213    pub creator: CollaboratorId,
 1214    pub id: u64,
 1215}
 1216
 1217pub struct FollowerState {
 1218    center_pane: Entity<Pane>,
 1219    dock_pane: Option<Entity<Pane>>,
 1220    active_view_id: Option<ViewId>,
 1221    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1222}
 1223
 1224struct FollowerView {
 1225    view: Box<dyn FollowableItemHandle>,
 1226    location: Option<proto::PanelId>,
 1227}
 1228
 1229impl Workspace {
 1230    pub fn new(
 1231        workspace_id: Option<WorkspaceId>,
 1232        project: Entity<Project>,
 1233        app_state: Arc<AppState>,
 1234        window: &mut Window,
 1235        cx: &mut Context<Self>,
 1236    ) -> Self {
 1237        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1238            cx.subscribe(&trusted_worktrees, |workspace, worktrees_store, e, cx| {
 1239                if let TrustedWorktreesEvent::Trusted(..) = e {
 1240                    // Do not persist auto trusted worktrees
 1241                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1242                        let new_trusted_worktrees =
 1243                            worktrees_store.update(cx, |worktrees_store, cx| {
 1244                                worktrees_store.trusted_paths_for_serialization(cx)
 1245                            });
 1246                        let timeout = cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1247                        workspace._schedule_serialize_worktree_trust =
 1248                            cx.background_spawn(async move {
 1249                                timeout.await;
 1250                                persistence::DB
 1251                                    .save_trusted_worktrees(new_trusted_worktrees)
 1252                                    .await
 1253                                    .log_err();
 1254                            });
 1255                    }
 1256                }
 1257            })
 1258            .detach();
 1259
 1260            cx.observe_global::<SettingsStore>(|_, cx| {
 1261                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1262                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1263                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1264                            trusted_worktrees.auto_trust_all(cx);
 1265                        })
 1266                    }
 1267                }
 1268            })
 1269            .detach();
 1270        }
 1271
 1272        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1273            match event {
 1274                project::Event::RemoteIdChanged(_) => {
 1275                    this.update_window_title(window, cx);
 1276                }
 1277
 1278                project::Event::CollaboratorLeft(peer_id) => {
 1279                    this.collaborator_left(*peer_id, window, cx);
 1280                }
 1281
 1282                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1283                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1284                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1285                            trusted_worktrees.can_trust(*worktree_id, cx);
 1286                        });
 1287                    }
 1288                }
 1289
 1290                project::Event::WorktreeRemoved(_) => {
 1291                    this.update_worktree_data(window, cx);
 1292                }
 1293
 1294                project::Event::WorktreeAdded(worktree_id) => {
 1295                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1296                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1297                            trusted_worktrees.can_trust(*worktree_id, cx);
 1298                        });
 1299                    }
 1300                    this.update_worktree_data(window, cx);
 1301                }
 1302
 1303                project::Event::DisconnectedFromHost => {
 1304                    this.update_window_edited(window, cx);
 1305                    let leaders_to_unfollow =
 1306                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1307                    for leader_id in leaders_to_unfollow {
 1308                        this.unfollow(leader_id, window, cx);
 1309                    }
 1310                }
 1311
 1312                project::Event::DisconnectedFromSshRemote => {
 1313                    this.update_window_edited(window, cx);
 1314                }
 1315
 1316                project::Event::Closed => {
 1317                    window.remove_window();
 1318                }
 1319
 1320                project::Event::DeletedEntry(_, entry_id) => {
 1321                    for pane in this.panes.iter() {
 1322                        pane.update(cx, |pane, cx| {
 1323                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1324                        });
 1325                    }
 1326                }
 1327
 1328                project::Event::Toast {
 1329                    notification_id,
 1330                    message,
 1331                } => this.show_notification(
 1332                    NotificationId::named(notification_id.clone()),
 1333                    cx,
 1334                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1335                ),
 1336
 1337                project::Event::HideToast { notification_id } => {
 1338                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1339                }
 1340
 1341                project::Event::LanguageServerPrompt(request) => {
 1342                    struct LanguageServerPrompt;
 1343
 1344                    let mut hasher = DefaultHasher::new();
 1345                    request.lsp_name.as_str().hash(&mut hasher);
 1346                    let id = hasher.finish();
 1347
 1348                    this.show_notification(
 1349                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1350                        cx,
 1351                        |cx| {
 1352                            cx.new(|cx| {
 1353                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1354                            })
 1355                        },
 1356                    );
 1357                }
 1358
 1359                project::Event::AgentLocationChanged => {
 1360                    this.handle_agent_location_changed(window, cx)
 1361                }
 1362
 1363                _ => {}
 1364            }
 1365            cx.notify()
 1366        })
 1367        .detach();
 1368
 1369        cx.subscribe_in(
 1370            &project.read(cx).breakpoint_store(),
 1371            window,
 1372            |workspace, _, event, window, cx| match event {
 1373                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1374                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1375                    workspace.serialize_workspace(window, cx);
 1376                }
 1377                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1378            },
 1379        )
 1380        .detach();
 1381        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1382            cx.subscribe_in(
 1383                &toolchain_store,
 1384                window,
 1385                |workspace, _, event, window, cx| match event {
 1386                    ToolchainStoreEvent::CustomToolchainsModified => {
 1387                        workspace.serialize_workspace(window, cx);
 1388                    }
 1389                    _ => {}
 1390                },
 1391            )
 1392            .detach();
 1393        }
 1394
 1395        cx.on_focus_lost(window, |this, window, cx| {
 1396            let focus_handle = this.focus_handle(cx);
 1397            window.focus(&focus_handle, cx);
 1398        })
 1399        .detach();
 1400
 1401        let weak_handle = cx.entity().downgrade();
 1402        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1403
 1404        let center_pane = cx.new(|cx| {
 1405            let mut center_pane = Pane::new(
 1406                weak_handle.clone(),
 1407                project.clone(),
 1408                pane_history_timestamp.clone(),
 1409                None,
 1410                NewFile.boxed_clone(),
 1411                true,
 1412                window,
 1413                cx,
 1414            );
 1415            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1416            center_pane
 1417        });
 1418        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1419            .detach();
 1420
 1421        window.focus(&center_pane.focus_handle(cx), cx);
 1422
 1423        cx.emit(Event::PaneAdded(center_pane.clone()));
 1424
 1425        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1426        app_state.workspace_store.update(cx, |store, _| {
 1427            store.workspaces.insert(window_handle);
 1428        });
 1429
 1430        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1431        let mut connection_status = app_state.client.status();
 1432        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1433            current_user.next().await;
 1434            connection_status.next().await;
 1435            let mut stream =
 1436                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1437
 1438            while stream.recv().await.is_some() {
 1439                this.update(cx, |_, cx| cx.notify())?;
 1440            }
 1441            anyhow::Ok(())
 1442        });
 1443
 1444        // All leader updates are enqueued and then processed in a single task, so
 1445        // that each asynchronous operation can be run in order.
 1446        let (leader_updates_tx, mut leader_updates_rx) =
 1447            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1448        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1449            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1450                Self::process_leader_update(&this, leader_id, update, cx)
 1451                    .await
 1452                    .log_err();
 1453            }
 1454
 1455            Ok(())
 1456        });
 1457
 1458        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1459        let modal_layer = cx.new(|_| ModalLayer::new());
 1460        let toast_layer = cx.new(|_| ToastLayer::new());
 1461        cx.subscribe(
 1462            &modal_layer,
 1463            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1464                cx.emit(Event::ModalOpened);
 1465            },
 1466        )
 1467        .detach();
 1468
 1469        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1470        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1471        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1472        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1473        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1474        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1475        let status_bar = cx.new(|cx| {
 1476            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1477            status_bar.add_left_item(left_dock_buttons, window, cx);
 1478            status_bar.add_right_item(right_dock_buttons, window, cx);
 1479            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1480            status_bar
 1481        });
 1482
 1483        let session_id = app_state.session.read(cx).id().to_owned();
 1484
 1485        let mut active_call = None;
 1486        if let Some(call) = ActiveCall::try_global(cx) {
 1487            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1488            active_call = Some((call, subscriptions));
 1489        }
 1490
 1491        let (serializable_items_tx, serializable_items_rx) =
 1492            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1493        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1494            Self::serialize_items(&this, serializable_items_rx, cx).await
 1495        });
 1496
 1497        let subscriptions = vec![
 1498            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1499            cx.observe_window_bounds(window, move |this, window, cx| {
 1500                if this.bounds_save_task_queued.is_some() {
 1501                    return;
 1502                }
 1503                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1504                    cx.background_executor()
 1505                        .timer(Duration::from_millis(100))
 1506                        .await;
 1507                    this.update_in(cx, |this, window, cx| {
 1508                        if let Some(display) = window.display(cx)
 1509                            && let Ok(display_uuid) = display.uuid()
 1510                        {
 1511                            let window_bounds = window.inner_window_bounds();
 1512                            let has_paths = !this.root_paths(cx).is_empty();
 1513                            if !has_paths {
 1514                                cx.background_executor()
 1515                                    .spawn(persistence::write_default_window_bounds(
 1516                                        window_bounds,
 1517                                        display_uuid,
 1518                                    ))
 1519                                    .detach_and_log_err(cx);
 1520                            }
 1521                            if let Some(database_id) = workspace_id {
 1522                                cx.background_executor()
 1523                                    .spawn(DB.set_window_open_status(
 1524                                        database_id,
 1525                                        SerializedWindowBounds(window_bounds),
 1526                                        display_uuid,
 1527                                    ))
 1528                                    .detach_and_log_err(cx);
 1529                            } else {
 1530                                cx.background_executor()
 1531                                    .spawn(persistence::write_default_window_bounds(
 1532                                        window_bounds,
 1533                                        display_uuid,
 1534                                    ))
 1535                                    .detach_and_log_err(cx);
 1536                            }
 1537                        }
 1538                        this.bounds_save_task_queued.take();
 1539                    })
 1540                    .ok();
 1541                }));
 1542                cx.notify();
 1543            }),
 1544            cx.observe_window_appearance(window, |_, window, cx| {
 1545                let window_appearance = window.appearance();
 1546
 1547                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1548
 1549                GlobalTheme::reload_theme(cx);
 1550                GlobalTheme::reload_icon_theme(cx);
 1551            }),
 1552            cx.on_release(move |this, cx| {
 1553                this.app_state.workspace_store.update(cx, move |store, _| {
 1554                    store.workspaces.remove(&window_handle);
 1555                })
 1556            }),
 1557        ];
 1558
 1559        cx.defer_in(window, move |this, window, cx| {
 1560            this.update_window_title(window, cx);
 1561            this.show_initial_notifications(cx);
 1562        });
 1563
 1564        let mut center = PaneGroup::new(center_pane.clone());
 1565        center.set_is_center(true);
 1566        center.mark_positions(cx);
 1567
 1568        Workspace {
 1569            weak_self: weak_handle.clone(),
 1570            zoomed: None,
 1571            zoomed_position: None,
 1572            previous_dock_drag_coordinates: None,
 1573            center,
 1574            panes: vec![center_pane.clone()],
 1575            panes_by_item: Default::default(),
 1576            active_pane: center_pane.clone(),
 1577            last_active_center_pane: Some(center_pane.downgrade()),
 1578            last_active_view_id: None,
 1579            status_bar,
 1580            modal_layer,
 1581            toast_layer,
 1582            titlebar_item: None,
 1583            notifications: Notifications::default(),
 1584            suppressed_notifications: HashSet::default(),
 1585            left_dock,
 1586            bottom_dock,
 1587            right_dock,
 1588            project: project.clone(),
 1589            follower_states: Default::default(),
 1590            last_leaders_by_pane: Default::default(),
 1591            dispatching_keystrokes: Default::default(),
 1592            window_edited: false,
 1593            last_window_title: None,
 1594            dirty_items: Default::default(),
 1595            active_call,
 1596            database_id: workspace_id,
 1597            app_state,
 1598            _observe_current_user,
 1599            _apply_leader_updates,
 1600            _schedule_serialize_workspace: None,
 1601            _schedule_serialize_ssh_paths: None,
 1602            _schedule_serialize_worktree_trust: Task::ready(()),
 1603            leader_updates_tx,
 1604            _subscriptions: subscriptions,
 1605            pane_history_timestamp,
 1606            workspace_actions: Default::default(),
 1607            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1608            bounds: Default::default(),
 1609            centered_layout: false,
 1610            bounds_save_task_queued: None,
 1611            on_prompt_for_new_path: None,
 1612            on_prompt_for_open_path: None,
 1613            terminal_provider: None,
 1614            debugger_provider: None,
 1615            serializable_items_tx,
 1616            _items_serializer,
 1617            session_id: Some(session_id),
 1618
 1619            scheduled_tasks: Vec::new(),
 1620            last_open_dock_positions: Vec::new(),
 1621            removing: false,
 1622            utility_panes: UtilityPaneState::default(),
 1623        }
 1624    }
 1625
 1626    pub fn new_local(
 1627        abs_paths: Vec<PathBuf>,
 1628        app_state: Arc<AppState>,
 1629        requesting_window: Option<WindowHandle<Workspace>>,
 1630        env: Option<HashMap<String, String>>,
 1631        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1632        cx: &mut App,
 1633    ) -> Task<
 1634        anyhow::Result<(
 1635            WindowHandle<Workspace>,
 1636            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1637        )>,
 1638    > {
 1639        let project_handle = Project::local(
 1640            app_state.client.clone(),
 1641            app_state.node_runtime.clone(),
 1642            app_state.user_store.clone(),
 1643            app_state.languages.clone(),
 1644            app_state.fs.clone(),
 1645            env,
 1646            true,
 1647            cx,
 1648        );
 1649
 1650        cx.spawn(async move |cx| {
 1651            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1652            for path in abs_paths.into_iter() {
 1653                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1654                    paths_to_open.push(canonical)
 1655                } else {
 1656                    paths_to_open.push(path)
 1657                }
 1658            }
 1659
 1660            let serialized_workspace =
 1661                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1662
 1663            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1664                paths_to_open = paths.ordered_paths().cloned().collect();
 1665                if !paths.is_lexicographically_ordered() {
 1666                    project_handle
 1667                        .update(cx, |project, cx| {
 1668                            project.set_worktrees_reordered(true, cx);
 1669                        })
 1670                        .log_err();
 1671                }
 1672            }
 1673
 1674            // Get project paths for all of the abs_paths
 1675            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1676                Vec::with_capacity(paths_to_open.len());
 1677
 1678            for path in paths_to_open.into_iter() {
 1679                if let Some((_, project_entry)) = cx
 1680                    .update(|cx| {
 1681                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1682                    })?
 1683                    .await
 1684                    .log_err()
 1685                {
 1686                    project_paths.push((path, Some(project_entry)));
 1687                } else {
 1688                    project_paths.push((path, None));
 1689                }
 1690            }
 1691
 1692            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1693                serialized_workspace.id
 1694            } else {
 1695                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1696            };
 1697
 1698            let toolchains = DB.toolchains(workspace_id).await?;
 1699
 1700            for (toolchain, worktree_id, path) in toolchains {
 1701                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1702                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1703                    continue;
 1704                }
 1705
 1706                project_handle
 1707                    .update(cx, |this, cx| {
 1708                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1709                    })?
 1710                    .await;
 1711            }
 1712            if let Some(workspace) = serialized_workspace.as_ref() {
 1713                project_handle.update(cx, |this, cx| {
 1714                    for (scope, toolchains) in &workspace.user_toolchains {
 1715                        for toolchain in toolchains {
 1716                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1717                        }
 1718                    }
 1719                })?;
 1720            }
 1721
 1722            let window = if let Some(window) = requesting_window {
 1723                let centered_layout = serialized_workspace
 1724                    .as_ref()
 1725                    .map(|w| w.centered_layout)
 1726                    .unwrap_or(false);
 1727
 1728                cx.update_window(window.into(), |_, window, cx| {
 1729                    window.replace_root(cx, |window, cx| {
 1730                        let mut workspace = Workspace::new(
 1731                            Some(workspace_id),
 1732                            project_handle.clone(),
 1733                            app_state.clone(),
 1734                            window,
 1735                            cx,
 1736                        );
 1737
 1738                        workspace.centered_layout = centered_layout;
 1739
 1740                        // Call init callback to add items before window renders
 1741                        if let Some(init) = init {
 1742                            init(&mut workspace, window, cx);
 1743                        }
 1744
 1745                        workspace
 1746                    });
 1747                })?;
 1748                window
 1749            } else {
 1750                let window_bounds_override = window_bounds_env_override();
 1751
 1752                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1753                    (Some(WindowBounds::Windowed(bounds)), None)
 1754                } else if let Some(workspace) = serialized_workspace.as_ref()
 1755                    && let Some(display) = workspace.display
 1756                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1757                {
 1758                    // Reopening an existing workspace - restore its saved bounds
 1759                    (Some(bounds.0), Some(display))
 1760                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1761                    // New or empty workspace - use the last known window bounds
 1762                    (Some(bounds), Some(display))
 1763                } else {
 1764                    // New window - let GPUI's default_bounds() handle cascading
 1765                    (None, None)
 1766                };
 1767
 1768                // Use the serialized workspace to construct the new window
 1769                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1770                options.window_bounds = window_bounds;
 1771                let centered_layout = serialized_workspace
 1772                    .as_ref()
 1773                    .map(|w| w.centered_layout)
 1774                    .unwrap_or(false);
 1775                cx.open_window(options, {
 1776                    let app_state = app_state.clone();
 1777                    let project_handle = project_handle.clone();
 1778                    move |window, cx| {
 1779                        cx.new(|cx| {
 1780                            let mut workspace = Workspace::new(
 1781                                Some(workspace_id),
 1782                                project_handle,
 1783                                app_state,
 1784                                window,
 1785                                cx,
 1786                            );
 1787                            workspace.centered_layout = centered_layout;
 1788
 1789                            // Call init callback to add items before window renders
 1790                            if let Some(init) = init {
 1791                                init(&mut workspace, window, cx);
 1792                            }
 1793
 1794                            workspace
 1795                        })
 1796                    }
 1797                })?
 1798            };
 1799
 1800            notify_if_database_failed(window, cx);
 1801            let opened_items = window
 1802                .update(cx, |_workspace, window, cx| {
 1803                    open_items(serialized_workspace, project_paths, window, cx)
 1804                })?
 1805                .await
 1806                .unwrap_or_default();
 1807
 1808            window
 1809                .update(cx, |workspace, window, cx| {
 1810                    window.activate_window();
 1811                    workspace.update_history(cx);
 1812                })
 1813                .log_err();
 1814            Ok((window, opened_items))
 1815        })
 1816    }
 1817
 1818    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1819        self.weak_self.clone()
 1820    }
 1821
 1822    pub fn left_dock(&self) -> &Entity<Dock> {
 1823        &self.left_dock
 1824    }
 1825
 1826    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1827        &self.bottom_dock
 1828    }
 1829
 1830    pub fn set_bottom_dock_layout(
 1831        &mut self,
 1832        layout: BottomDockLayout,
 1833        window: &mut Window,
 1834        cx: &mut Context<Self>,
 1835    ) {
 1836        let fs = self.project().read(cx).fs();
 1837        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1838            content.workspace.bottom_dock_layout = Some(layout);
 1839        });
 1840
 1841        cx.notify();
 1842        self.serialize_workspace(window, cx);
 1843    }
 1844
 1845    pub fn right_dock(&self) -> &Entity<Dock> {
 1846        &self.right_dock
 1847    }
 1848
 1849    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1850        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1851    }
 1852
 1853    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1854        match position {
 1855            DockPosition::Left => &self.left_dock,
 1856            DockPosition::Bottom => &self.bottom_dock,
 1857            DockPosition::Right => &self.right_dock,
 1858        }
 1859    }
 1860
 1861    pub fn is_edited(&self) -> bool {
 1862        self.window_edited
 1863    }
 1864
 1865    pub fn add_panel<T: Panel>(
 1866        &mut self,
 1867        panel: Entity<T>,
 1868        window: &mut Window,
 1869        cx: &mut Context<Self>,
 1870    ) {
 1871        let focus_handle = panel.panel_focus_handle(cx);
 1872        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1873            .detach();
 1874
 1875        let dock_position = panel.position(window, cx);
 1876        let dock = self.dock_at_position(dock_position);
 1877
 1878        dock.update(cx, |dock, cx| {
 1879            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1880        });
 1881    }
 1882
 1883    pub fn remove_panel<T: Panel>(
 1884        &mut self,
 1885        panel: &Entity<T>,
 1886        window: &mut Window,
 1887        cx: &mut Context<Self>,
 1888    ) {
 1889        let mut found_in_dock = None;
 1890        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1891            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1892
 1893            if found {
 1894                found_in_dock = Some(dock.clone());
 1895            }
 1896        }
 1897        if let Some(found_in_dock) = found_in_dock {
 1898            let position = found_in_dock.read(cx).position();
 1899            let slot = utility_slot_for_dock_position(position);
 1900            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1901        }
 1902    }
 1903
 1904    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1905        &self.status_bar
 1906    }
 1907
 1908    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1909        StatusBarSettings::get_global(cx).show
 1910    }
 1911
 1912    pub fn app_state(&self) -> &Arc<AppState> {
 1913        &self.app_state
 1914    }
 1915
 1916    pub fn user_store(&self) -> &Entity<UserStore> {
 1917        &self.app_state.user_store
 1918    }
 1919
 1920    pub fn project(&self) -> &Entity<Project> {
 1921        &self.project
 1922    }
 1923
 1924    pub fn path_style(&self, cx: &App) -> PathStyle {
 1925        self.project.read(cx).path_style(cx)
 1926    }
 1927
 1928    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1929        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1930
 1931        for pane_handle in &self.panes {
 1932            let pane = pane_handle.read(cx);
 1933
 1934            for entry in pane.activation_history() {
 1935                history.insert(
 1936                    entry.entity_id,
 1937                    history
 1938                        .get(&entry.entity_id)
 1939                        .cloned()
 1940                        .unwrap_or(0)
 1941                        .max(entry.timestamp),
 1942                );
 1943            }
 1944        }
 1945
 1946        history
 1947    }
 1948
 1949    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1950        let mut recent_item: Option<Entity<T>> = None;
 1951        let mut recent_timestamp = 0;
 1952        for pane_handle in &self.panes {
 1953            let pane = pane_handle.read(cx);
 1954            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1955                pane.items().map(|item| (item.item_id(), item)).collect();
 1956            for entry in pane.activation_history() {
 1957                if entry.timestamp > recent_timestamp
 1958                    && let Some(&item) = item_map.get(&entry.entity_id)
 1959                    && let Some(typed_item) = item.act_as::<T>(cx)
 1960                {
 1961                    recent_timestamp = entry.timestamp;
 1962                    recent_item = Some(typed_item);
 1963                }
 1964            }
 1965        }
 1966        recent_item
 1967    }
 1968
 1969    pub fn recent_navigation_history_iter(
 1970        &self,
 1971        cx: &App,
 1972    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1973        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1974        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1975
 1976        for pane in &self.panes {
 1977            let pane = pane.read(cx);
 1978
 1979            pane.nav_history()
 1980                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1981                    if let Some(fs_path) = &fs_path {
 1982                        abs_paths_opened
 1983                            .entry(fs_path.clone())
 1984                            .or_default()
 1985                            .insert(project_path.clone());
 1986                    }
 1987                    let timestamp = entry.timestamp;
 1988                    match history.entry(project_path) {
 1989                        hash_map::Entry::Occupied(mut entry) => {
 1990                            let (_, old_timestamp) = entry.get();
 1991                            if &timestamp > old_timestamp {
 1992                                entry.insert((fs_path, timestamp));
 1993                            }
 1994                        }
 1995                        hash_map::Entry::Vacant(entry) => {
 1996                            entry.insert((fs_path, timestamp));
 1997                        }
 1998                    }
 1999                });
 2000
 2001            if let Some(item) = pane.active_item()
 2002                && let Some(project_path) = item.project_path(cx)
 2003            {
 2004                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2005
 2006                if let Some(fs_path) = &fs_path {
 2007                    abs_paths_opened
 2008                        .entry(fs_path.clone())
 2009                        .or_default()
 2010                        .insert(project_path.clone());
 2011                }
 2012
 2013                history.insert(project_path, (fs_path, std::usize::MAX));
 2014            }
 2015        }
 2016
 2017        history
 2018            .into_iter()
 2019            .sorted_by_key(|(_, (_, order))| *order)
 2020            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2021            .rev()
 2022            .filter(move |(history_path, abs_path)| {
 2023                let latest_project_path_opened = abs_path
 2024                    .as_ref()
 2025                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2026                    .and_then(|project_paths| {
 2027                        project_paths
 2028                            .iter()
 2029                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2030                    });
 2031
 2032                latest_project_path_opened.is_none_or(|path| path == history_path)
 2033            })
 2034    }
 2035
 2036    pub fn recent_navigation_history(
 2037        &self,
 2038        limit: Option<usize>,
 2039        cx: &App,
 2040    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2041        self.recent_navigation_history_iter(cx)
 2042            .take(limit.unwrap_or(usize::MAX))
 2043            .collect()
 2044    }
 2045
 2046    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2047        for pane in &self.panes {
 2048            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2049        }
 2050    }
 2051
 2052    fn navigate_history(
 2053        &mut self,
 2054        pane: WeakEntity<Pane>,
 2055        mode: NavigationMode,
 2056        window: &mut Window,
 2057        cx: &mut Context<Workspace>,
 2058    ) -> Task<Result<()>> {
 2059        let to_load = if let Some(pane) = pane.upgrade() {
 2060            pane.update(cx, |pane, cx| {
 2061                window.focus(&pane.focus_handle(cx), cx);
 2062                loop {
 2063                    // Retrieve the weak item handle from the history.
 2064                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2065
 2066                    // If the item is still present in this pane, then activate it.
 2067                    if let Some(index) = entry
 2068                        .item
 2069                        .upgrade()
 2070                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2071                    {
 2072                        let prev_active_item_index = pane.active_item_index();
 2073                        pane.nav_history_mut().set_mode(mode);
 2074                        pane.activate_item(index, true, true, window, cx);
 2075                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2076
 2077                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2078                        if let Some(data) = entry.data {
 2079                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2080                        }
 2081
 2082                        if navigated {
 2083                            break None;
 2084                        }
 2085                    } else {
 2086                        // If the item is no longer present in this pane, then retrieve its
 2087                        // path info in order to reopen it.
 2088                        break pane
 2089                            .nav_history()
 2090                            .path_for_item(entry.item.id())
 2091                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2092                    }
 2093                }
 2094            })
 2095        } else {
 2096            None
 2097        };
 2098
 2099        if let Some((project_path, abs_path, entry)) = to_load {
 2100            // If the item was no longer present, then load it again from its previous path, first try the local path
 2101            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2102
 2103            cx.spawn_in(window, async move  |workspace, cx| {
 2104                let open_by_project_path = open_by_project_path.await;
 2105                let mut navigated = false;
 2106                match open_by_project_path
 2107                    .with_context(|| format!("Navigating to {project_path:?}"))
 2108                {
 2109                    Ok((project_entry_id, build_item)) => {
 2110                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2111                            pane.nav_history_mut().set_mode(mode);
 2112                            pane.active_item().map(|p| p.item_id())
 2113                        })?;
 2114
 2115                        pane.update_in(cx, |pane, window, cx| {
 2116                            let item = pane.open_item(
 2117                                project_entry_id,
 2118                                project_path,
 2119                                true,
 2120                                entry.is_preview,
 2121                                true,
 2122                                None,
 2123                                window, cx,
 2124                                build_item,
 2125                            );
 2126                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2127                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2128                            if let Some(data) = entry.data {
 2129                                navigated |= item.navigate(data, window, cx);
 2130                            }
 2131                        })?;
 2132                    }
 2133                    Err(open_by_project_path_e) => {
 2134                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2135                        // and its worktree is now dropped
 2136                        if let Some(abs_path) = abs_path {
 2137                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2138                                pane.nav_history_mut().set_mode(mode);
 2139                                pane.active_item().map(|p| p.item_id())
 2140                            })?;
 2141                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2142                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2143                            })?;
 2144                            match open_by_abs_path
 2145                                .await
 2146                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2147                            {
 2148                                Ok(item) => {
 2149                                    pane.update_in(cx, |pane, window, cx| {
 2150                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2151                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2152                                        if let Some(data) = entry.data {
 2153                                            navigated |= item.navigate(data, window, cx);
 2154                                        }
 2155                                    })?;
 2156                                }
 2157                                Err(open_by_abs_path_e) => {
 2158                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2159                                }
 2160                            }
 2161                        }
 2162                    }
 2163                }
 2164
 2165                if !navigated {
 2166                    workspace
 2167                        .update_in(cx, |workspace, window, cx| {
 2168                            Self::navigate_history(workspace, pane, mode, window, cx)
 2169                        })?
 2170                        .await?;
 2171                }
 2172
 2173                Ok(())
 2174            })
 2175        } else {
 2176            Task::ready(Ok(()))
 2177        }
 2178    }
 2179
 2180    pub fn go_back(
 2181        &mut self,
 2182        pane: WeakEntity<Pane>,
 2183        window: &mut Window,
 2184        cx: &mut Context<Workspace>,
 2185    ) -> Task<Result<()>> {
 2186        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2187    }
 2188
 2189    pub fn go_forward(
 2190        &mut self,
 2191        pane: WeakEntity<Pane>,
 2192        window: &mut Window,
 2193        cx: &mut Context<Workspace>,
 2194    ) -> Task<Result<()>> {
 2195        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2196    }
 2197
 2198    pub fn reopen_closed_item(
 2199        &mut self,
 2200        window: &mut Window,
 2201        cx: &mut Context<Workspace>,
 2202    ) -> Task<Result<()>> {
 2203        self.navigate_history(
 2204            self.active_pane().downgrade(),
 2205            NavigationMode::ReopeningClosedItem,
 2206            window,
 2207            cx,
 2208        )
 2209    }
 2210
 2211    pub fn client(&self) -> &Arc<Client> {
 2212        &self.app_state.client
 2213    }
 2214
 2215    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2216        self.titlebar_item = Some(item);
 2217        cx.notify();
 2218    }
 2219
 2220    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2221        self.on_prompt_for_new_path = Some(prompt)
 2222    }
 2223
 2224    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2225        self.on_prompt_for_open_path = Some(prompt)
 2226    }
 2227
 2228    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2229        self.terminal_provider = Some(Box::new(provider));
 2230    }
 2231
 2232    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2233        self.debugger_provider = Some(Arc::new(provider));
 2234    }
 2235
 2236    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2237        self.debugger_provider.clone()
 2238    }
 2239
 2240    pub fn prompt_for_open_path(
 2241        &mut self,
 2242        path_prompt_options: PathPromptOptions,
 2243        lister: DirectoryLister,
 2244        window: &mut Window,
 2245        cx: &mut Context<Self>,
 2246    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2247        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2248            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2249            let rx = prompt(self, lister, window, cx);
 2250            self.on_prompt_for_open_path = Some(prompt);
 2251            rx
 2252        } else {
 2253            let (tx, rx) = oneshot::channel();
 2254            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2255
 2256            cx.spawn_in(window, async move |workspace, cx| {
 2257                let Ok(result) = abs_path.await else {
 2258                    return Ok(());
 2259                };
 2260
 2261                match result {
 2262                    Ok(result) => {
 2263                        tx.send(result).ok();
 2264                    }
 2265                    Err(err) => {
 2266                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2267                            workspace.show_portal_error(err.to_string(), cx);
 2268                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2269                            let rx = prompt(workspace, lister, window, cx);
 2270                            workspace.on_prompt_for_open_path = Some(prompt);
 2271                            rx
 2272                        })?;
 2273                        if let Ok(path) = rx.await {
 2274                            tx.send(path).ok();
 2275                        }
 2276                    }
 2277                };
 2278                anyhow::Ok(())
 2279            })
 2280            .detach();
 2281
 2282            rx
 2283        }
 2284    }
 2285
 2286    pub fn prompt_for_new_path(
 2287        &mut self,
 2288        lister: DirectoryLister,
 2289        suggested_name: Option<String>,
 2290        window: &mut Window,
 2291        cx: &mut Context<Self>,
 2292    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2293        if self.project.read(cx).is_via_collab()
 2294            || self.project.read(cx).is_via_remote_server()
 2295            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2296        {
 2297            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2298            let rx = prompt(self, lister, window, cx);
 2299            self.on_prompt_for_new_path = Some(prompt);
 2300            return rx;
 2301        }
 2302
 2303        let (tx, rx) = oneshot::channel();
 2304        cx.spawn_in(window, async move |workspace, cx| {
 2305            let abs_path = workspace.update(cx, |workspace, cx| {
 2306                let relative_to = workspace
 2307                    .most_recent_active_path(cx)
 2308                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2309                    .or_else(|| {
 2310                        let project = workspace.project.read(cx);
 2311                        project.visible_worktrees(cx).find_map(|worktree| {
 2312                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2313                        })
 2314                    })
 2315                    .or_else(std::env::home_dir)
 2316                    .unwrap_or_else(|| PathBuf::from(""));
 2317                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2318            })?;
 2319            let abs_path = match abs_path.await? {
 2320                Ok(path) => path,
 2321                Err(err) => {
 2322                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2323                        workspace.show_portal_error(err.to_string(), cx);
 2324
 2325                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2326                        let rx = prompt(workspace, lister, window, cx);
 2327                        workspace.on_prompt_for_new_path = Some(prompt);
 2328                        rx
 2329                    })?;
 2330                    if let Ok(path) = rx.await {
 2331                        tx.send(path).ok();
 2332                    }
 2333                    return anyhow::Ok(());
 2334                }
 2335            };
 2336
 2337            tx.send(abs_path.map(|path| vec![path])).ok();
 2338            anyhow::Ok(())
 2339        })
 2340        .detach();
 2341
 2342        rx
 2343    }
 2344
 2345    pub fn titlebar_item(&self) -> Option<AnyView> {
 2346        self.titlebar_item.clone()
 2347    }
 2348
 2349    /// Call the given callback with a workspace whose project is local.
 2350    ///
 2351    /// If the given workspace has a local project, then it will be passed
 2352    /// to the callback. Otherwise, a new empty window will be created.
 2353    pub fn with_local_workspace<T, F>(
 2354        &mut self,
 2355        window: &mut Window,
 2356        cx: &mut Context<Self>,
 2357        callback: F,
 2358    ) -> Task<Result<T>>
 2359    where
 2360        T: 'static,
 2361        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2362    {
 2363        if self.project.read(cx).is_local() {
 2364            Task::ready(Ok(callback(self, window, cx)))
 2365        } else {
 2366            let env = self.project.read(cx).cli_environment(cx);
 2367            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2368            cx.spawn_in(window, async move |_vh, cx| {
 2369                let (workspace, _) = task.await?;
 2370                workspace.update(cx, callback)
 2371            })
 2372        }
 2373    }
 2374
 2375    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2376        self.project.read(cx).worktrees(cx)
 2377    }
 2378
 2379    pub fn visible_worktrees<'a>(
 2380        &self,
 2381        cx: &'a App,
 2382    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2383        self.project.read(cx).visible_worktrees(cx)
 2384    }
 2385
 2386    #[cfg(any(test, feature = "test-support"))]
 2387    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2388        let futures = self
 2389            .worktrees(cx)
 2390            .filter_map(|worktree| worktree.read(cx).as_local())
 2391            .map(|worktree| worktree.scan_complete())
 2392            .collect::<Vec<_>>();
 2393        async move {
 2394            for future in futures {
 2395                future.await;
 2396            }
 2397        }
 2398    }
 2399
 2400    pub fn close_global(cx: &mut App) {
 2401        cx.defer(|cx| {
 2402            cx.windows().iter().find(|window| {
 2403                window
 2404                    .update(cx, |_, window, _| {
 2405                        if window.is_window_active() {
 2406                            //This can only get called when the window's project connection has been lost
 2407                            //so we don't need to prompt the user for anything and instead just close the window
 2408                            window.remove_window();
 2409                            true
 2410                        } else {
 2411                            false
 2412                        }
 2413                    })
 2414                    .unwrap_or(false)
 2415            });
 2416        });
 2417    }
 2418
 2419    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2420        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2421        cx.spawn_in(window, async move |_, cx| {
 2422            if prepare.await? {
 2423                cx.update(|window, _cx| window.remove_window())?;
 2424            }
 2425            anyhow::Ok(())
 2426        })
 2427        .detach_and_log_err(cx)
 2428    }
 2429
 2430    pub fn move_focused_panel_to_next_position(
 2431        &mut self,
 2432        _: &MoveFocusedPanelToNextPosition,
 2433        window: &mut Window,
 2434        cx: &mut Context<Self>,
 2435    ) {
 2436        let docks = self.all_docks();
 2437        let active_dock = docks
 2438            .into_iter()
 2439            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2440
 2441        if let Some(dock) = active_dock {
 2442            dock.update(cx, |dock, cx| {
 2443                let active_panel = dock
 2444                    .active_panel()
 2445                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2446
 2447                if let Some(panel) = active_panel {
 2448                    panel.move_to_next_position(window, cx);
 2449                }
 2450            })
 2451        }
 2452    }
 2453
 2454    pub fn prepare_to_close(
 2455        &mut self,
 2456        close_intent: CloseIntent,
 2457        window: &mut Window,
 2458        cx: &mut Context<Self>,
 2459    ) -> Task<Result<bool>> {
 2460        let active_call = self.active_call().cloned();
 2461
 2462        cx.spawn_in(window, async move |this, cx| {
 2463            this.update(cx, |this, _| {
 2464                if close_intent == CloseIntent::CloseWindow {
 2465                    this.removing = true;
 2466                }
 2467            })?;
 2468
 2469            let workspace_count = cx.update(|_window, cx| {
 2470                cx.windows()
 2471                    .iter()
 2472                    .filter(|window| window.downcast::<Workspace>().is_some())
 2473                    .count()
 2474            })?;
 2475
 2476            #[cfg(target_os = "macos")]
 2477            let save_last_workspace = false;
 2478
 2479            // On Linux and Windows, closing the last window should restore the last workspace.
 2480            #[cfg(not(target_os = "macos"))]
 2481            let save_last_workspace = {
 2482                let remaining_workspaces = cx.update(|_window, cx| {
 2483                    cx.windows()
 2484                        .iter()
 2485                        .filter_map(|window| window.downcast::<Workspace>())
 2486                        .filter_map(|workspace| {
 2487                            workspace
 2488                                .update(cx, |workspace, _, _| workspace.removing)
 2489                                .ok()
 2490                        })
 2491                        .filter(|removing| !removing)
 2492                        .count()
 2493                })?;
 2494
 2495                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2496            };
 2497
 2498            if let Some(active_call) = active_call
 2499                && workspace_count == 1
 2500                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2501            {
 2502                if close_intent == CloseIntent::CloseWindow {
 2503                    let answer = cx.update(|window, cx| {
 2504                        window.prompt(
 2505                            PromptLevel::Warning,
 2506                            "Do you want to leave the current call?",
 2507                            None,
 2508                            &["Close window and hang up", "Cancel"],
 2509                            cx,
 2510                        )
 2511                    })?;
 2512
 2513                    if answer.await.log_err() == Some(1) {
 2514                        return anyhow::Ok(false);
 2515                    } else {
 2516                        active_call
 2517                            .update(cx, |call, cx| call.hang_up(cx))?
 2518                            .await
 2519                            .log_err();
 2520                    }
 2521                }
 2522                if close_intent == CloseIntent::ReplaceWindow {
 2523                    _ = active_call.update(cx, |this, cx| {
 2524                        let workspace = cx
 2525                            .windows()
 2526                            .iter()
 2527                            .filter_map(|window| window.downcast::<Workspace>())
 2528                            .next()
 2529                            .unwrap();
 2530                        let project = workspace.read(cx)?.project.clone();
 2531                        if project.read(cx).is_shared() {
 2532                            this.unshare_project(project, cx)?;
 2533                        }
 2534                        Ok::<_, anyhow::Error>(())
 2535                    })?;
 2536                }
 2537            }
 2538
 2539            let save_result = this
 2540                .update_in(cx, |this, window, cx| {
 2541                    this.save_all_internal(SaveIntent::Close, window, cx)
 2542                })?
 2543                .await;
 2544
 2545            // If we're not quitting, but closing, we remove the workspace from
 2546            // the current session.
 2547            if close_intent != CloseIntent::Quit
 2548                && !save_last_workspace
 2549                && save_result.as_ref().is_ok_and(|&res| res)
 2550            {
 2551                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2552                    .await;
 2553            }
 2554
 2555            save_result
 2556        })
 2557    }
 2558
 2559    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2560        self.save_all_internal(
 2561            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2562            window,
 2563            cx,
 2564        )
 2565        .detach_and_log_err(cx);
 2566    }
 2567
 2568    fn send_keystrokes(
 2569        &mut self,
 2570        action: &SendKeystrokes,
 2571        window: &mut Window,
 2572        cx: &mut Context<Self>,
 2573    ) {
 2574        let keystrokes: Vec<Keystroke> = action
 2575            .0
 2576            .split(' ')
 2577            .flat_map(|k| Keystroke::parse(k).log_err())
 2578            .map(|k| {
 2579                cx.keyboard_mapper()
 2580                    .map_key_equivalent(k, true)
 2581                    .inner()
 2582                    .clone()
 2583            })
 2584            .collect();
 2585        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2586    }
 2587
 2588    pub fn send_keystrokes_impl(
 2589        &mut self,
 2590        keystrokes: Vec<Keystroke>,
 2591        window: &mut Window,
 2592        cx: &mut Context<Self>,
 2593    ) -> Shared<Task<()>> {
 2594        let mut state = self.dispatching_keystrokes.borrow_mut();
 2595        if !state.dispatched.insert(keystrokes.clone()) {
 2596            cx.propagate();
 2597            return state.task.clone().unwrap();
 2598        }
 2599
 2600        state.queue.extend(keystrokes);
 2601
 2602        let keystrokes = self.dispatching_keystrokes.clone();
 2603        if state.task.is_none() {
 2604            state.task = Some(
 2605                window
 2606                    .spawn(cx, async move |cx| {
 2607                        // limit to 100 keystrokes to avoid infinite recursion.
 2608                        for _ in 0..100 {
 2609                            let mut state = keystrokes.borrow_mut();
 2610                            let Some(keystroke) = state.queue.pop_front() else {
 2611                                state.dispatched.clear();
 2612                                state.task.take();
 2613                                return;
 2614                            };
 2615                            drop(state);
 2616                            cx.update(|window, cx| {
 2617                                let focused = window.focused(cx);
 2618                                window.dispatch_keystroke(keystroke.clone(), cx);
 2619                                if window.focused(cx) != focused {
 2620                                    // dispatch_keystroke may cause the focus to change.
 2621                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2622                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2623                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2624                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2625                                    // )
 2626                                    window.draw(cx).clear();
 2627                                }
 2628                            })
 2629                            .ok();
 2630                        }
 2631
 2632                        *keystrokes.borrow_mut() = Default::default();
 2633                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2634                    })
 2635                    .shared(),
 2636            );
 2637        }
 2638        state.task.clone().unwrap()
 2639    }
 2640
 2641    fn save_all_internal(
 2642        &mut self,
 2643        mut save_intent: SaveIntent,
 2644        window: &mut Window,
 2645        cx: &mut Context<Self>,
 2646    ) -> Task<Result<bool>> {
 2647        if self.project.read(cx).is_disconnected(cx) {
 2648            return Task::ready(Ok(true));
 2649        }
 2650        let dirty_items = self
 2651            .panes
 2652            .iter()
 2653            .flat_map(|pane| {
 2654                pane.read(cx).items().filter_map(|item| {
 2655                    if item.is_dirty(cx) {
 2656                        item.tab_content_text(0, cx);
 2657                        Some((pane.downgrade(), item.boxed_clone()))
 2658                    } else {
 2659                        None
 2660                    }
 2661                })
 2662            })
 2663            .collect::<Vec<_>>();
 2664
 2665        let project = self.project.clone();
 2666        cx.spawn_in(window, async move |workspace, cx| {
 2667            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2668                let (serialize_tasks, remaining_dirty_items) =
 2669                    workspace.update_in(cx, |workspace, window, cx| {
 2670                        let mut remaining_dirty_items = Vec::new();
 2671                        let mut serialize_tasks = Vec::new();
 2672                        for (pane, item) in dirty_items {
 2673                            if let Some(task) = item
 2674                                .to_serializable_item_handle(cx)
 2675                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2676                            {
 2677                                serialize_tasks.push(task);
 2678                            } else {
 2679                                remaining_dirty_items.push((pane, item));
 2680                            }
 2681                        }
 2682                        (serialize_tasks, remaining_dirty_items)
 2683                    })?;
 2684
 2685                futures::future::try_join_all(serialize_tasks).await?;
 2686
 2687                if remaining_dirty_items.len() > 1 {
 2688                    let answer = workspace.update_in(cx, |_, window, cx| {
 2689                        let detail = Pane::file_names_for_prompt(
 2690                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2691                            cx,
 2692                        );
 2693                        window.prompt(
 2694                            PromptLevel::Warning,
 2695                            "Do you want to save all changes in the following files?",
 2696                            Some(&detail),
 2697                            &["Save all", "Discard all", "Cancel"],
 2698                            cx,
 2699                        )
 2700                    })?;
 2701                    match answer.await.log_err() {
 2702                        Some(0) => save_intent = SaveIntent::SaveAll,
 2703                        Some(1) => save_intent = SaveIntent::Skip,
 2704                        Some(2) => return Ok(false),
 2705                        _ => {}
 2706                    }
 2707                }
 2708
 2709                remaining_dirty_items
 2710            } else {
 2711                dirty_items
 2712            };
 2713
 2714            for (pane, item) in dirty_items {
 2715                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2716                    (
 2717                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2718                        item.project_entry_ids(cx),
 2719                    )
 2720                })?;
 2721                if (singleton || !project_entry_ids.is_empty())
 2722                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2723                {
 2724                    return Ok(false);
 2725                }
 2726            }
 2727            Ok(true)
 2728        })
 2729    }
 2730
 2731    pub fn open_workspace_for_paths(
 2732        &mut self,
 2733        replace_current_window: bool,
 2734        paths: Vec<PathBuf>,
 2735        window: &mut Window,
 2736        cx: &mut Context<Self>,
 2737    ) -> Task<Result<()>> {
 2738        let window_handle = window.window_handle().downcast::<Self>();
 2739        let is_remote = self.project.read(cx).is_via_collab();
 2740        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2741        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2742
 2743        let window_to_replace = if replace_current_window {
 2744            window_handle
 2745        } else if is_remote || has_worktree || has_dirty_items {
 2746            None
 2747        } else {
 2748            window_handle
 2749        };
 2750        let app_state = self.app_state.clone();
 2751
 2752        cx.spawn(async move |_, cx| {
 2753            cx.update(|cx| {
 2754                open_paths(
 2755                    &paths,
 2756                    app_state,
 2757                    OpenOptions {
 2758                        replace_window: window_to_replace,
 2759                        ..Default::default()
 2760                    },
 2761                    cx,
 2762                )
 2763            })?
 2764            .await?;
 2765            Ok(())
 2766        })
 2767    }
 2768
 2769    #[allow(clippy::type_complexity)]
 2770    pub fn open_paths(
 2771        &mut self,
 2772        mut abs_paths: Vec<PathBuf>,
 2773        options: OpenOptions,
 2774        pane: Option<WeakEntity<Pane>>,
 2775        window: &mut Window,
 2776        cx: &mut Context<Self>,
 2777    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2778        let fs = self.app_state.fs.clone();
 2779
 2780        // Sort the paths to ensure we add worktrees for parents before their children.
 2781        abs_paths.sort_unstable();
 2782        cx.spawn_in(window, async move |this, cx| {
 2783            let mut tasks = Vec::with_capacity(abs_paths.len());
 2784
 2785            for abs_path in &abs_paths {
 2786                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2787                    OpenVisible::All => Some(true),
 2788                    OpenVisible::None => Some(false),
 2789                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2790                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2791                        Some(None) => Some(true),
 2792                        None => None,
 2793                    },
 2794                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2795                        Some(Some(metadata)) => Some(metadata.is_dir),
 2796                        Some(None) => Some(false),
 2797                        None => None,
 2798                    },
 2799                };
 2800                let project_path = match visible {
 2801                    Some(visible) => match this
 2802                        .update(cx, |this, cx| {
 2803                            Workspace::project_path_for_path(
 2804                                this.project.clone(),
 2805                                abs_path,
 2806                                visible,
 2807                                cx,
 2808                            )
 2809                        })
 2810                        .log_err()
 2811                    {
 2812                        Some(project_path) => project_path.await.log_err(),
 2813                        None => None,
 2814                    },
 2815                    None => None,
 2816                };
 2817
 2818                let this = this.clone();
 2819                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2820                let fs = fs.clone();
 2821                let pane = pane.clone();
 2822                let task = cx.spawn(async move |cx| {
 2823                    let (worktree, project_path) = project_path?;
 2824                    if fs.is_dir(&abs_path).await {
 2825                        this.update(cx, |workspace, cx| {
 2826                            let worktree = worktree.read(cx);
 2827                            let worktree_abs_path = worktree.abs_path();
 2828                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2829                                worktree.root_entry()
 2830                            } else {
 2831                                abs_path
 2832                                    .strip_prefix(worktree_abs_path.as_ref())
 2833                                    .ok()
 2834                                    .and_then(|relative_path| {
 2835                                        let relative_path =
 2836                                            RelPath::new(relative_path, PathStyle::local())
 2837                                                .log_err()?;
 2838                                        worktree.entry_for_path(&relative_path)
 2839                                    })
 2840                            }
 2841                            .map(|entry| entry.id);
 2842                            if let Some(entry_id) = entry_id {
 2843                                workspace.project.update(cx, |_, cx| {
 2844                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2845                                })
 2846                            }
 2847                        })
 2848                        .ok()?;
 2849                        None
 2850                    } else {
 2851                        Some(
 2852                            this.update_in(cx, |this, window, cx| {
 2853                                this.open_path(
 2854                                    project_path,
 2855                                    pane,
 2856                                    options.focus.unwrap_or(true),
 2857                                    window,
 2858                                    cx,
 2859                                )
 2860                            })
 2861                            .ok()?
 2862                            .await,
 2863                        )
 2864                    }
 2865                });
 2866                tasks.push(task);
 2867            }
 2868
 2869            futures::future::join_all(tasks).await
 2870        })
 2871    }
 2872
 2873    pub fn open_resolved_path(
 2874        &mut self,
 2875        path: ResolvedPath,
 2876        window: &mut Window,
 2877        cx: &mut Context<Self>,
 2878    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2879        match path {
 2880            ResolvedPath::ProjectPath { project_path, .. } => {
 2881                self.open_path(project_path, None, true, window, cx)
 2882            }
 2883            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2884                PathBuf::from(path),
 2885                OpenOptions {
 2886                    visible: Some(OpenVisible::None),
 2887                    ..Default::default()
 2888                },
 2889                window,
 2890                cx,
 2891            ),
 2892        }
 2893    }
 2894
 2895    pub fn absolute_path_of_worktree(
 2896        &self,
 2897        worktree_id: WorktreeId,
 2898        cx: &mut Context<Self>,
 2899    ) -> Option<PathBuf> {
 2900        self.project
 2901            .read(cx)
 2902            .worktree_for_id(worktree_id, cx)
 2903            // TODO: use `abs_path` or `root_dir`
 2904            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2905    }
 2906
 2907    fn add_folder_to_project(
 2908        &mut self,
 2909        _: &AddFolderToProject,
 2910        window: &mut Window,
 2911        cx: &mut Context<Self>,
 2912    ) {
 2913        let project = self.project.read(cx);
 2914        if project.is_via_collab() {
 2915            self.show_error(
 2916                &anyhow!("You cannot add folders to someone else's project"),
 2917                cx,
 2918            );
 2919            return;
 2920        }
 2921        let paths = self.prompt_for_open_path(
 2922            PathPromptOptions {
 2923                files: false,
 2924                directories: true,
 2925                multiple: true,
 2926                prompt: None,
 2927            },
 2928            DirectoryLister::Project(self.project.clone()),
 2929            window,
 2930            cx,
 2931        );
 2932        cx.spawn_in(window, async move |this, cx| {
 2933            if let Some(paths) = paths.await.log_err().flatten() {
 2934                let results = this
 2935                    .update_in(cx, |this, window, cx| {
 2936                        this.open_paths(
 2937                            paths,
 2938                            OpenOptions {
 2939                                visible: Some(OpenVisible::All),
 2940                                ..Default::default()
 2941                            },
 2942                            None,
 2943                            window,
 2944                            cx,
 2945                        )
 2946                    })?
 2947                    .await;
 2948                for result in results.into_iter().flatten() {
 2949                    result.log_err();
 2950                }
 2951            }
 2952            anyhow::Ok(())
 2953        })
 2954        .detach_and_log_err(cx);
 2955    }
 2956
 2957    pub fn project_path_for_path(
 2958        project: Entity<Project>,
 2959        abs_path: &Path,
 2960        visible: bool,
 2961        cx: &mut App,
 2962    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2963        let entry = project.update(cx, |project, cx| {
 2964            project.find_or_create_worktree(abs_path, visible, cx)
 2965        });
 2966        cx.spawn(async move |cx| {
 2967            let (worktree, path) = entry.await?;
 2968            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2969            Ok((
 2970                worktree,
 2971                ProjectPath {
 2972                    worktree_id,
 2973                    path: path,
 2974                },
 2975            ))
 2976        })
 2977    }
 2978
 2979    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2980        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2981    }
 2982
 2983    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2984        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2985    }
 2986
 2987    pub fn items_of_type<'a, T: Item>(
 2988        &'a self,
 2989        cx: &'a App,
 2990    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2991        self.panes
 2992            .iter()
 2993            .flat_map(|pane| pane.read(cx).items_of_type())
 2994    }
 2995
 2996    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2997        self.active_pane().read(cx).active_item()
 2998    }
 2999
 3000    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3001        let item = self.active_item(cx)?;
 3002        item.to_any_view().downcast::<I>().ok()
 3003    }
 3004
 3005    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3006        self.active_item(cx).and_then(|item| item.project_path(cx))
 3007    }
 3008
 3009    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3010        self.recent_navigation_history_iter(cx)
 3011            .filter_map(|(path, abs_path)| {
 3012                let worktree = self
 3013                    .project
 3014                    .read(cx)
 3015                    .worktree_for_id(path.worktree_id, cx)?;
 3016                if worktree.read(cx).is_visible() {
 3017                    abs_path
 3018                } else {
 3019                    None
 3020                }
 3021            })
 3022            .next()
 3023    }
 3024
 3025    pub fn save_active_item(
 3026        &mut self,
 3027        save_intent: SaveIntent,
 3028        window: &mut Window,
 3029        cx: &mut App,
 3030    ) -> Task<Result<()>> {
 3031        let project = self.project.clone();
 3032        let pane = self.active_pane();
 3033        let item = pane.read(cx).active_item();
 3034        let pane = pane.downgrade();
 3035
 3036        window.spawn(cx, async move |cx| {
 3037            if let Some(item) = item {
 3038                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3039                    .await
 3040                    .map(|_| ())
 3041            } else {
 3042                Ok(())
 3043            }
 3044        })
 3045    }
 3046
 3047    pub fn close_inactive_items_and_panes(
 3048        &mut self,
 3049        action: &CloseInactiveTabsAndPanes,
 3050        window: &mut Window,
 3051        cx: &mut Context<Self>,
 3052    ) {
 3053        if let Some(task) = self.close_all_internal(
 3054            true,
 3055            action.save_intent.unwrap_or(SaveIntent::Close),
 3056            window,
 3057            cx,
 3058        ) {
 3059            task.detach_and_log_err(cx)
 3060        }
 3061    }
 3062
 3063    pub fn close_all_items_and_panes(
 3064        &mut self,
 3065        action: &CloseAllItemsAndPanes,
 3066        window: &mut Window,
 3067        cx: &mut Context<Self>,
 3068    ) {
 3069        if let Some(task) = self.close_all_internal(
 3070            false,
 3071            action.save_intent.unwrap_or(SaveIntent::Close),
 3072            window,
 3073            cx,
 3074        ) {
 3075            task.detach_and_log_err(cx)
 3076        }
 3077    }
 3078
 3079    fn close_all_internal(
 3080        &mut self,
 3081        retain_active_pane: bool,
 3082        save_intent: SaveIntent,
 3083        window: &mut Window,
 3084        cx: &mut Context<Self>,
 3085    ) -> Option<Task<Result<()>>> {
 3086        let current_pane = self.active_pane();
 3087
 3088        let mut tasks = Vec::new();
 3089
 3090        if retain_active_pane {
 3091            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3092                pane.close_other_items(
 3093                    &CloseOtherItems {
 3094                        save_intent: None,
 3095                        close_pinned: false,
 3096                    },
 3097                    None,
 3098                    window,
 3099                    cx,
 3100                )
 3101            });
 3102
 3103            tasks.push(current_pane_close);
 3104        }
 3105
 3106        for pane in self.panes() {
 3107            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3108                continue;
 3109            }
 3110
 3111            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3112                pane.close_all_items(
 3113                    &CloseAllItems {
 3114                        save_intent: Some(save_intent),
 3115                        close_pinned: false,
 3116                    },
 3117                    window,
 3118                    cx,
 3119                )
 3120            });
 3121
 3122            tasks.push(close_pane_items)
 3123        }
 3124
 3125        if tasks.is_empty() {
 3126            None
 3127        } else {
 3128            Some(cx.spawn_in(window, async move |_, _| {
 3129                for task in tasks {
 3130                    task.await?
 3131                }
 3132                Ok(())
 3133            }))
 3134        }
 3135    }
 3136
 3137    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3138        self.dock_at_position(position).read(cx).is_open()
 3139    }
 3140
 3141    pub fn toggle_dock(
 3142        &mut self,
 3143        dock_side: DockPosition,
 3144        window: &mut Window,
 3145        cx: &mut Context<Self>,
 3146    ) {
 3147        let mut focus_center = false;
 3148        let mut reveal_dock = false;
 3149
 3150        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3151        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3152        if was_visible {
 3153            self.save_open_dock_positions(cx);
 3154        }
 3155
 3156        let dock = self.dock_at_position(dock_side);
 3157        dock.update(cx, |dock, cx| {
 3158            dock.set_open(!was_visible, window, cx);
 3159
 3160            if dock.active_panel().is_none() {
 3161                let Some(panel_ix) = dock
 3162                    .first_enabled_panel_idx(cx)
 3163                    .log_with_level(log::Level::Info)
 3164                else {
 3165                    return;
 3166                };
 3167                dock.activate_panel(panel_ix, window, cx);
 3168            }
 3169
 3170            if let Some(active_panel) = dock.active_panel() {
 3171                if was_visible {
 3172                    if active_panel
 3173                        .panel_focus_handle(cx)
 3174                        .contains_focused(window, cx)
 3175                    {
 3176                        focus_center = true;
 3177                    }
 3178                } else {
 3179                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3180                    window.focus(focus_handle, cx);
 3181                    reveal_dock = true;
 3182                }
 3183            }
 3184        });
 3185
 3186        if reveal_dock {
 3187            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3188        }
 3189
 3190        if focus_center {
 3191            self.active_pane
 3192                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3193        }
 3194
 3195        cx.notify();
 3196        self.serialize_workspace(window, cx);
 3197    }
 3198
 3199    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3200        self.all_docks().into_iter().find(|&dock| {
 3201            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3202        })
 3203    }
 3204
 3205    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3206        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3207            self.save_open_dock_positions(cx);
 3208            dock.update(cx, |dock, cx| {
 3209                dock.set_open(false, window, cx);
 3210            });
 3211            return true;
 3212        }
 3213        false
 3214    }
 3215
 3216    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3217        self.save_open_dock_positions(cx);
 3218        for dock in self.all_docks() {
 3219            dock.update(cx, |dock, cx| {
 3220                dock.set_open(false, window, cx);
 3221            });
 3222        }
 3223
 3224        cx.focus_self(window);
 3225        cx.notify();
 3226        self.serialize_workspace(window, cx);
 3227    }
 3228
 3229    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3230        self.all_docks()
 3231            .into_iter()
 3232            .filter_map(|dock| {
 3233                let dock_ref = dock.read(cx);
 3234                if dock_ref.is_open() {
 3235                    Some(dock_ref.position())
 3236                } else {
 3237                    None
 3238                }
 3239            })
 3240            .collect()
 3241    }
 3242
 3243    /// Saves the positions of currently open docks.
 3244    ///
 3245    /// Updates `last_open_dock_positions` with positions of all currently open
 3246    /// docks, to later be restored by the 'Toggle All Docks' action.
 3247    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3248        let open_dock_positions = self.get_open_dock_positions(cx);
 3249        if !open_dock_positions.is_empty() {
 3250            self.last_open_dock_positions = open_dock_positions;
 3251        }
 3252    }
 3253
 3254    /// Toggles all docks between open and closed states.
 3255    ///
 3256    /// If any docks are open, closes all and remembers their positions. If all
 3257    /// docks are closed, restores the last remembered dock configuration.
 3258    fn toggle_all_docks(
 3259        &mut self,
 3260        _: &ToggleAllDocks,
 3261        window: &mut Window,
 3262        cx: &mut Context<Self>,
 3263    ) {
 3264        let open_dock_positions = self.get_open_dock_positions(cx);
 3265
 3266        if !open_dock_positions.is_empty() {
 3267            self.close_all_docks(window, cx);
 3268        } else if !self.last_open_dock_positions.is_empty() {
 3269            self.restore_last_open_docks(window, cx);
 3270        }
 3271    }
 3272
 3273    /// Reopens docks from the most recently remembered configuration.
 3274    ///
 3275    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3276    /// and clears the stored positions.
 3277    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3278        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3279
 3280        for position in positions_to_open {
 3281            let dock = self.dock_at_position(position);
 3282            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3283        }
 3284
 3285        cx.focus_self(window);
 3286        cx.notify();
 3287        self.serialize_workspace(window, cx);
 3288    }
 3289
 3290    /// Transfer focus to the panel of the given type.
 3291    pub fn focus_panel<T: Panel>(
 3292        &mut self,
 3293        window: &mut Window,
 3294        cx: &mut Context<Self>,
 3295    ) -> Option<Entity<T>> {
 3296        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3297        panel.to_any().downcast().ok()
 3298    }
 3299
 3300    /// Focus the panel of the given type if it isn't already focused. If it is
 3301    /// already focused, then transfer focus back to the workspace center.
 3302    pub fn toggle_panel_focus<T: Panel>(
 3303        &mut self,
 3304        window: &mut Window,
 3305        cx: &mut Context<Self>,
 3306    ) -> bool {
 3307        let mut did_focus_panel = false;
 3308        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3309            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3310            did_focus_panel
 3311        });
 3312        did_focus_panel
 3313    }
 3314
 3315    pub fn activate_panel_for_proto_id(
 3316        &mut self,
 3317        panel_id: PanelId,
 3318        window: &mut Window,
 3319        cx: &mut Context<Self>,
 3320    ) -> Option<Arc<dyn PanelHandle>> {
 3321        let mut panel = None;
 3322        for dock in self.all_docks() {
 3323            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3324                panel = dock.update(cx, |dock, cx| {
 3325                    dock.activate_panel(panel_index, window, cx);
 3326                    dock.set_open(true, window, cx);
 3327                    dock.active_panel().cloned()
 3328                });
 3329                break;
 3330            }
 3331        }
 3332
 3333        if panel.is_some() {
 3334            cx.notify();
 3335            self.serialize_workspace(window, cx);
 3336        }
 3337
 3338        panel
 3339    }
 3340
 3341    /// Focus or unfocus the given panel type, depending on the given callback.
 3342    fn focus_or_unfocus_panel<T: Panel>(
 3343        &mut self,
 3344        window: &mut Window,
 3345        cx: &mut Context<Self>,
 3346        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3347    ) -> Option<Arc<dyn PanelHandle>> {
 3348        let mut result_panel = None;
 3349        let mut serialize = false;
 3350        for dock in self.all_docks() {
 3351            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3352                let mut focus_center = false;
 3353                let panel = dock.update(cx, |dock, cx| {
 3354                    dock.activate_panel(panel_index, window, cx);
 3355
 3356                    let panel = dock.active_panel().cloned();
 3357                    if let Some(panel) = panel.as_ref() {
 3358                        if should_focus(&**panel, window, cx) {
 3359                            dock.set_open(true, window, cx);
 3360                            panel.panel_focus_handle(cx).focus(window, cx);
 3361                        } else {
 3362                            focus_center = true;
 3363                        }
 3364                    }
 3365                    panel
 3366                });
 3367
 3368                if focus_center {
 3369                    self.active_pane
 3370                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3371                }
 3372
 3373                result_panel = panel;
 3374                serialize = true;
 3375                break;
 3376            }
 3377        }
 3378
 3379        if serialize {
 3380            self.serialize_workspace(window, cx);
 3381        }
 3382
 3383        cx.notify();
 3384        result_panel
 3385    }
 3386
 3387    /// Open the panel of the given type
 3388    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3389        for dock in self.all_docks() {
 3390            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3391                dock.update(cx, |dock, cx| {
 3392                    dock.activate_panel(panel_index, window, cx);
 3393                    dock.set_open(true, window, cx);
 3394                });
 3395            }
 3396        }
 3397    }
 3398
 3399    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3400        for dock in self.all_docks().iter() {
 3401            dock.update(cx, |dock, cx| {
 3402                if dock.panel::<T>().is_some() {
 3403                    dock.set_open(false, window, cx)
 3404                }
 3405            })
 3406        }
 3407    }
 3408
 3409    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3410        self.all_docks()
 3411            .iter()
 3412            .find_map(|dock| dock.read(cx).panel::<T>())
 3413    }
 3414
 3415    fn dismiss_zoomed_items_to_reveal(
 3416        &mut self,
 3417        dock_to_reveal: Option<DockPosition>,
 3418        window: &mut Window,
 3419        cx: &mut Context<Self>,
 3420    ) {
 3421        // If a center pane is zoomed, unzoom it.
 3422        for pane in &self.panes {
 3423            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3424                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3425            }
 3426        }
 3427
 3428        // If another dock is zoomed, hide it.
 3429        let mut focus_center = false;
 3430        for dock in self.all_docks() {
 3431            dock.update(cx, |dock, cx| {
 3432                if Some(dock.position()) != dock_to_reveal
 3433                    && let Some(panel) = dock.active_panel()
 3434                    && panel.is_zoomed(window, cx)
 3435                {
 3436                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3437                    dock.set_open(false, window, cx);
 3438                }
 3439            });
 3440        }
 3441
 3442        if focus_center {
 3443            self.active_pane
 3444                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3445        }
 3446
 3447        if self.zoomed_position != dock_to_reveal {
 3448            self.zoomed = None;
 3449            self.zoomed_position = None;
 3450            cx.emit(Event::ZoomChanged);
 3451        }
 3452
 3453        cx.notify();
 3454    }
 3455
 3456    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3457        let pane = cx.new(|cx| {
 3458            let mut pane = Pane::new(
 3459                self.weak_handle(),
 3460                self.project.clone(),
 3461                self.pane_history_timestamp.clone(),
 3462                None,
 3463                NewFile.boxed_clone(),
 3464                true,
 3465                window,
 3466                cx,
 3467            );
 3468            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3469            pane
 3470        });
 3471        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3472            .detach();
 3473        self.panes.push(pane.clone());
 3474
 3475        window.focus(&pane.focus_handle(cx), cx);
 3476
 3477        cx.emit(Event::PaneAdded(pane.clone()));
 3478        pane
 3479    }
 3480
 3481    pub fn add_item_to_center(
 3482        &mut self,
 3483        item: Box<dyn ItemHandle>,
 3484        window: &mut Window,
 3485        cx: &mut Context<Self>,
 3486    ) -> bool {
 3487        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3488            if let Some(center_pane) = center_pane.upgrade() {
 3489                center_pane.update(cx, |pane, cx| {
 3490                    pane.add_item(item, true, true, None, window, cx)
 3491                });
 3492                true
 3493            } else {
 3494                false
 3495            }
 3496        } else {
 3497            false
 3498        }
 3499    }
 3500
 3501    pub fn add_item_to_active_pane(
 3502        &mut self,
 3503        item: Box<dyn ItemHandle>,
 3504        destination_index: Option<usize>,
 3505        focus_item: bool,
 3506        window: &mut Window,
 3507        cx: &mut App,
 3508    ) {
 3509        self.add_item(
 3510            self.active_pane.clone(),
 3511            item,
 3512            destination_index,
 3513            false,
 3514            focus_item,
 3515            window,
 3516            cx,
 3517        )
 3518    }
 3519
 3520    pub fn add_item(
 3521        &mut self,
 3522        pane: Entity<Pane>,
 3523        item: Box<dyn ItemHandle>,
 3524        destination_index: Option<usize>,
 3525        activate_pane: bool,
 3526        focus_item: bool,
 3527        window: &mut Window,
 3528        cx: &mut App,
 3529    ) {
 3530        pane.update(cx, |pane, cx| {
 3531            pane.add_item(
 3532                item,
 3533                activate_pane,
 3534                focus_item,
 3535                destination_index,
 3536                window,
 3537                cx,
 3538            )
 3539        });
 3540    }
 3541
 3542    pub fn split_item(
 3543        &mut self,
 3544        split_direction: SplitDirection,
 3545        item: Box<dyn ItemHandle>,
 3546        window: &mut Window,
 3547        cx: &mut Context<Self>,
 3548    ) {
 3549        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3550        self.add_item(new_pane, item, None, true, true, window, cx);
 3551    }
 3552
 3553    pub fn open_abs_path(
 3554        &mut self,
 3555        abs_path: PathBuf,
 3556        options: OpenOptions,
 3557        window: &mut Window,
 3558        cx: &mut Context<Self>,
 3559    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3560        cx.spawn_in(window, async move |workspace, cx| {
 3561            let open_paths_task_result = workspace
 3562                .update_in(cx, |workspace, window, cx| {
 3563                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3564                })
 3565                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3566                .await;
 3567            anyhow::ensure!(
 3568                open_paths_task_result.len() == 1,
 3569                "open abs path {abs_path:?} task returned incorrect number of results"
 3570            );
 3571            match open_paths_task_result
 3572                .into_iter()
 3573                .next()
 3574                .expect("ensured single task result")
 3575            {
 3576                Some(open_result) => {
 3577                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3578                }
 3579                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3580            }
 3581        })
 3582    }
 3583
 3584    pub fn split_abs_path(
 3585        &mut self,
 3586        abs_path: PathBuf,
 3587        visible: bool,
 3588        window: &mut Window,
 3589        cx: &mut Context<Self>,
 3590    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3591        let project_path_task =
 3592            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3593        cx.spawn_in(window, async move |this, cx| {
 3594            let (_, path) = project_path_task.await?;
 3595            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3596                .await
 3597        })
 3598    }
 3599
 3600    pub fn open_path(
 3601        &mut self,
 3602        path: impl Into<ProjectPath>,
 3603        pane: Option<WeakEntity<Pane>>,
 3604        focus_item: bool,
 3605        window: &mut Window,
 3606        cx: &mut App,
 3607    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3608        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3609    }
 3610
 3611    pub fn open_path_preview(
 3612        &mut self,
 3613        path: impl Into<ProjectPath>,
 3614        pane: Option<WeakEntity<Pane>>,
 3615        focus_item: bool,
 3616        allow_preview: bool,
 3617        activate: bool,
 3618        window: &mut Window,
 3619        cx: &mut App,
 3620    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3621        let pane = pane.unwrap_or_else(|| {
 3622            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3623                self.panes
 3624                    .first()
 3625                    .expect("There must be an active pane")
 3626                    .downgrade()
 3627            })
 3628        });
 3629
 3630        let project_path = path.into();
 3631        let task = self.load_path(project_path.clone(), window, cx);
 3632        window.spawn(cx, async move |cx| {
 3633            let (project_entry_id, build_item) = task.await?;
 3634
 3635            pane.update_in(cx, |pane, window, cx| {
 3636                pane.open_item(
 3637                    project_entry_id,
 3638                    project_path,
 3639                    focus_item,
 3640                    allow_preview,
 3641                    activate,
 3642                    None,
 3643                    window,
 3644                    cx,
 3645                    build_item,
 3646                )
 3647            })
 3648        })
 3649    }
 3650
 3651    pub fn split_path(
 3652        &mut self,
 3653        path: impl Into<ProjectPath>,
 3654        window: &mut Window,
 3655        cx: &mut Context<Self>,
 3656    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3657        self.split_path_preview(path, false, None, window, cx)
 3658    }
 3659
 3660    pub fn split_path_preview(
 3661        &mut self,
 3662        path: impl Into<ProjectPath>,
 3663        allow_preview: bool,
 3664        split_direction: Option<SplitDirection>,
 3665        window: &mut Window,
 3666        cx: &mut Context<Self>,
 3667    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3668        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3669            self.panes
 3670                .first()
 3671                .expect("There must be an active pane")
 3672                .downgrade()
 3673        });
 3674
 3675        if let Member::Pane(center_pane) = &self.center.root
 3676            && center_pane.read(cx).items_len() == 0
 3677        {
 3678            return self.open_path(path, Some(pane), true, window, cx);
 3679        }
 3680
 3681        let project_path = path.into();
 3682        let task = self.load_path(project_path.clone(), window, cx);
 3683        cx.spawn_in(window, async move |this, cx| {
 3684            let (project_entry_id, build_item) = task.await?;
 3685            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3686                let pane = pane.upgrade()?;
 3687                let new_pane = this.split_pane(
 3688                    pane,
 3689                    split_direction.unwrap_or(SplitDirection::Right),
 3690                    window,
 3691                    cx,
 3692                );
 3693                new_pane.update(cx, |new_pane, cx| {
 3694                    Some(new_pane.open_item(
 3695                        project_entry_id,
 3696                        project_path,
 3697                        true,
 3698                        allow_preview,
 3699                        true,
 3700                        None,
 3701                        window,
 3702                        cx,
 3703                        build_item,
 3704                    ))
 3705                })
 3706            })
 3707            .map(|option| option.context("pane was dropped"))?
 3708        })
 3709    }
 3710
 3711    fn load_path(
 3712        &mut self,
 3713        path: ProjectPath,
 3714        window: &mut Window,
 3715        cx: &mut App,
 3716    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3717        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3718        registry.open_path(self.project(), &path, window, cx)
 3719    }
 3720
 3721    pub fn find_project_item<T>(
 3722        &self,
 3723        pane: &Entity<Pane>,
 3724        project_item: &Entity<T::Item>,
 3725        cx: &App,
 3726    ) -> Option<Entity<T>>
 3727    where
 3728        T: ProjectItem,
 3729    {
 3730        use project::ProjectItem as _;
 3731        let project_item = project_item.read(cx);
 3732        let entry_id = project_item.entry_id(cx);
 3733        let project_path = project_item.project_path(cx);
 3734
 3735        let mut item = None;
 3736        if let Some(entry_id) = entry_id {
 3737            item = pane.read(cx).item_for_entry(entry_id, cx);
 3738        }
 3739        if item.is_none()
 3740            && let Some(project_path) = project_path
 3741        {
 3742            item = pane.read(cx).item_for_path(project_path, cx);
 3743        }
 3744
 3745        item.and_then(|item| item.downcast::<T>())
 3746    }
 3747
 3748    pub fn is_project_item_open<T>(
 3749        &self,
 3750        pane: &Entity<Pane>,
 3751        project_item: &Entity<T::Item>,
 3752        cx: &App,
 3753    ) -> bool
 3754    where
 3755        T: ProjectItem,
 3756    {
 3757        self.find_project_item::<T>(pane, project_item, cx)
 3758            .is_some()
 3759    }
 3760
 3761    pub fn open_project_item<T>(
 3762        &mut self,
 3763        pane: Entity<Pane>,
 3764        project_item: Entity<T::Item>,
 3765        activate_pane: bool,
 3766        focus_item: bool,
 3767        keep_old_preview: bool,
 3768        allow_new_preview: bool,
 3769        window: &mut Window,
 3770        cx: &mut Context<Self>,
 3771    ) -> Entity<T>
 3772    where
 3773        T: ProjectItem,
 3774    {
 3775        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3776
 3777        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3778            if !keep_old_preview
 3779                && let Some(old_id) = old_item_id
 3780                && old_id != item.item_id()
 3781            {
 3782                // switching to a different item, so unpreview old active item
 3783                pane.update(cx, |pane, _| {
 3784                    pane.unpreview_item_if_preview(old_id);
 3785                });
 3786            }
 3787
 3788            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3789            if !allow_new_preview {
 3790                pane.update(cx, |pane, _| {
 3791                    pane.unpreview_item_if_preview(item.item_id());
 3792                });
 3793            }
 3794            return item;
 3795        }
 3796
 3797        let item = pane.update(cx, |pane, cx| {
 3798            cx.new(|cx| {
 3799                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3800            })
 3801        });
 3802        let mut destination_index = None;
 3803        pane.update(cx, |pane, cx| {
 3804            if !keep_old_preview && let Some(old_id) = old_item_id {
 3805                pane.unpreview_item_if_preview(old_id);
 3806            }
 3807            if allow_new_preview {
 3808                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3809            }
 3810        });
 3811
 3812        self.add_item(
 3813            pane,
 3814            Box::new(item.clone()),
 3815            destination_index,
 3816            activate_pane,
 3817            focus_item,
 3818            window,
 3819            cx,
 3820        );
 3821        item
 3822    }
 3823
 3824    pub fn open_shared_screen(
 3825        &mut self,
 3826        peer_id: PeerId,
 3827        window: &mut Window,
 3828        cx: &mut Context<Self>,
 3829    ) {
 3830        if let Some(shared_screen) =
 3831            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3832        {
 3833            self.active_pane.update(cx, |pane, cx| {
 3834                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3835            });
 3836        }
 3837    }
 3838
 3839    pub fn activate_item(
 3840        &mut self,
 3841        item: &dyn ItemHandle,
 3842        activate_pane: bool,
 3843        focus_item: bool,
 3844        window: &mut Window,
 3845        cx: &mut App,
 3846    ) -> bool {
 3847        let result = self.panes.iter().find_map(|pane| {
 3848            pane.read(cx)
 3849                .index_for_item(item)
 3850                .map(|ix| (pane.clone(), ix))
 3851        });
 3852        if let Some((pane, ix)) = result {
 3853            pane.update(cx, |pane, cx| {
 3854                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3855            });
 3856            true
 3857        } else {
 3858            false
 3859        }
 3860    }
 3861
 3862    fn activate_pane_at_index(
 3863        &mut self,
 3864        action: &ActivatePane,
 3865        window: &mut Window,
 3866        cx: &mut Context<Self>,
 3867    ) {
 3868        let panes = self.center.panes();
 3869        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3870            window.focus(&pane.focus_handle(cx), cx);
 3871        } else {
 3872            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3873                .detach();
 3874        }
 3875    }
 3876
 3877    fn move_item_to_pane_at_index(
 3878        &mut self,
 3879        action: &MoveItemToPane,
 3880        window: &mut Window,
 3881        cx: &mut Context<Self>,
 3882    ) {
 3883        let panes = self.center.panes();
 3884        let destination = match panes.get(action.destination) {
 3885            Some(&destination) => destination.clone(),
 3886            None => {
 3887                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3888                    return;
 3889                }
 3890                let direction = SplitDirection::Right;
 3891                let split_off_pane = self
 3892                    .find_pane_in_direction(direction, cx)
 3893                    .unwrap_or_else(|| self.active_pane.clone());
 3894                let new_pane = self.add_pane(window, cx);
 3895                if self
 3896                    .center
 3897                    .split(&split_off_pane, &new_pane, direction, cx)
 3898                    .log_err()
 3899                    .is_none()
 3900                {
 3901                    return;
 3902                };
 3903                new_pane
 3904            }
 3905        };
 3906
 3907        if action.clone {
 3908            if self
 3909                .active_pane
 3910                .read(cx)
 3911                .active_item()
 3912                .is_some_and(|item| item.can_split(cx))
 3913            {
 3914                clone_active_item(
 3915                    self.database_id(),
 3916                    &self.active_pane,
 3917                    &destination,
 3918                    action.focus,
 3919                    window,
 3920                    cx,
 3921                );
 3922                return;
 3923            }
 3924        }
 3925        move_active_item(
 3926            &self.active_pane,
 3927            &destination,
 3928            action.focus,
 3929            true,
 3930            window,
 3931            cx,
 3932        )
 3933    }
 3934
 3935    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3936        let panes = self.center.panes();
 3937        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3938            let next_ix = (ix + 1) % panes.len();
 3939            let next_pane = panes[next_ix].clone();
 3940            window.focus(&next_pane.focus_handle(cx), cx);
 3941        }
 3942    }
 3943
 3944    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3945        let panes = self.center.panes();
 3946        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3947            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3948            let prev_pane = panes[prev_ix].clone();
 3949            window.focus(&prev_pane.focus_handle(cx), cx);
 3950        }
 3951    }
 3952
 3953    pub fn activate_pane_in_direction(
 3954        &mut self,
 3955        direction: SplitDirection,
 3956        window: &mut Window,
 3957        cx: &mut App,
 3958    ) {
 3959        use ActivateInDirectionTarget as Target;
 3960        enum Origin {
 3961            LeftDock,
 3962            RightDock,
 3963            BottomDock,
 3964            Center,
 3965        }
 3966
 3967        let origin: Origin = [
 3968            (&self.left_dock, Origin::LeftDock),
 3969            (&self.right_dock, Origin::RightDock),
 3970            (&self.bottom_dock, Origin::BottomDock),
 3971        ]
 3972        .into_iter()
 3973        .find_map(|(dock, origin)| {
 3974            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3975                Some(origin)
 3976            } else {
 3977                None
 3978            }
 3979        })
 3980        .unwrap_or(Origin::Center);
 3981
 3982        let get_last_active_pane = || {
 3983            let pane = self
 3984                .last_active_center_pane
 3985                .clone()
 3986                .unwrap_or_else(|| {
 3987                    self.panes
 3988                        .first()
 3989                        .expect("There must be an active pane")
 3990                        .downgrade()
 3991                })
 3992                .upgrade()?;
 3993            (pane.read(cx).items_len() != 0).then_some(pane)
 3994        };
 3995
 3996        let try_dock =
 3997            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3998
 3999        let target = match (origin, direction) {
 4000            // We're in the center, so we first try to go to a different pane,
 4001            // otherwise try to go to a dock.
 4002            (Origin::Center, direction) => {
 4003                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4004                    Some(Target::Pane(pane))
 4005                } else {
 4006                    match direction {
 4007                        SplitDirection::Up => None,
 4008                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4009                        SplitDirection::Left => try_dock(&self.left_dock),
 4010                        SplitDirection::Right => try_dock(&self.right_dock),
 4011                    }
 4012                }
 4013            }
 4014
 4015            (Origin::LeftDock, SplitDirection::Right) => {
 4016                if let Some(last_active_pane) = get_last_active_pane() {
 4017                    Some(Target::Pane(last_active_pane))
 4018                } else {
 4019                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4020                }
 4021            }
 4022
 4023            (Origin::LeftDock, SplitDirection::Down)
 4024            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4025
 4026            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4027            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4028            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4029
 4030            (Origin::RightDock, SplitDirection::Left) => {
 4031                if let Some(last_active_pane) = get_last_active_pane() {
 4032                    Some(Target::Pane(last_active_pane))
 4033                } else {
 4034                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4035                }
 4036            }
 4037
 4038            _ => None,
 4039        };
 4040
 4041        match target {
 4042            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4043                let pane = pane.read(cx);
 4044                if let Some(item) = pane.active_item() {
 4045                    item.item_focus_handle(cx).focus(window, cx);
 4046                } else {
 4047                    log::error!(
 4048                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4049                    );
 4050                }
 4051            }
 4052            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4053                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4054                window.defer(cx, move |window, cx| {
 4055                    let dock = dock.read(cx);
 4056                    if let Some(panel) = dock.active_panel() {
 4057                        panel.panel_focus_handle(cx).focus(window, cx);
 4058                    } else {
 4059                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4060                    }
 4061                })
 4062            }
 4063            None => {}
 4064        }
 4065    }
 4066
 4067    pub fn move_item_to_pane_in_direction(
 4068        &mut self,
 4069        action: &MoveItemToPaneInDirection,
 4070        window: &mut Window,
 4071        cx: &mut Context<Self>,
 4072    ) {
 4073        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4074            Some(destination) => destination,
 4075            None => {
 4076                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4077                    return;
 4078                }
 4079                let new_pane = self.add_pane(window, cx);
 4080                if self
 4081                    .center
 4082                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4083                    .log_err()
 4084                    .is_none()
 4085                {
 4086                    return;
 4087                };
 4088                new_pane
 4089            }
 4090        };
 4091
 4092        if action.clone {
 4093            if self
 4094                .active_pane
 4095                .read(cx)
 4096                .active_item()
 4097                .is_some_and(|item| item.can_split(cx))
 4098            {
 4099                clone_active_item(
 4100                    self.database_id(),
 4101                    &self.active_pane,
 4102                    &destination,
 4103                    action.focus,
 4104                    window,
 4105                    cx,
 4106                );
 4107                return;
 4108            }
 4109        }
 4110        move_active_item(
 4111            &self.active_pane,
 4112            &destination,
 4113            action.focus,
 4114            true,
 4115            window,
 4116            cx,
 4117        );
 4118    }
 4119
 4120    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4121        self.center.bounding_box_for_pane(pane)
 4122    }
 4123
 4124    pub fn find_pane_in_direction(
 4125        &mut self,
 4126        direction: SplitDirection,
 4127        cx: &App,
 4128    ) -> Option<Entity<Pane>> {
 4129        self.center
 4130            .find_pane_in_direction(&self.active_pane, direction, cx)
 4131            .cloned()
 4132    }
 4133
 4134    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4135        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4136            self.center.swap(&self.active_pane, &to, cx);
 4137            cx.notify();
 4138        }
 4139    }
 4140
 4141    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4142        if self
 4143            .center
 4144            .move_to_border(&self.active_pane, direction, cx)
 4145            .unwrap()
 4146        {
 4147            cx.notify();
 4148        }
 4149    }
 4150
 4151    pub fn resize_pane(
 4152        &mut self,
 4153        axis: gpui::Axis,
 4154        amount: Pixels,
 4155        window: &mut Window,
 4156        cx: &mut Context<Self>,
 4157    ) {
 4158        let docks = self.all_docks();
 4159        let active_dock = docks
 4160            .into_iter()
 4161            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4162
 4163        if let Some(dock) = active_dock {
 4164            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4165                return;
 4166            };
 4167            match dock.read(cx).position() {
 4168                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4169                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4170                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4171            }
 4172        } else {
 4173            self.center
 4174                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4175        }
 4176        cx.notify();
 4177    }
 4178
 4179    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4180        self.center.reset_pane_sizes(cx);
 4181        cx.notify();
 4182    }
 4183
 4184    fn handle_pane_focused(
 4185        &mut self,
 4186        pane: Entity<Pane>,
 4187        window: &mut Window,
 4188        cx: &mut Context<Self>,
 4189    ) {
 4190        // This is explicitly hoisted out of the following check for pane identity as
 4191        // terminal panel panes are not registered as a center panes.
 4192        self.status_bar.update(cx, |status_bar, cx| {
 4193            status_bar.set_active_pane(&pane, window, cx);
 4194        });
 4195        if self.active_pane != pane {
 4196            self.set_active_pane(&pane, window, cx);
 4197        }
 4198
 4199        if self.last_active_center_pane.is_none() {
 4200            self.last_active_center_pane = Some(pane.downgrade());
 4201        }
 4202
 4203        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4204        if pane.read(cx).is_zoomed() {
 4205            self.zoomed = Some(pane.downgrade().into());
 4206        } else {
 4207            self.zoomed = None;
 4208        }
 4209        self.zoomed_position = None;
 4210        cx.emit(Event::ZoomChanged);
 4211        self.update_active_view_for_followers(window, cx);
 4212        pane.update(cx, |pane, _| {
 4213            pane.track_alternate_file_items();
 4214        });
 4215
 4216        cx.notify();
 4217    }
 4218
 4219    fn set_active_pane(
 4220        &mut self,
 4221        pane: &Entity<Pane>,
 4222        window: &mut Window,
 4223        cx: &mut Context<Self>,
 4224    ) {
 4225        self.active_pane = pane.clone();
 4226        self.active_item_path_changed(window, cx);
 4227        self.last_active_center_pane = Some(pane.downgrade());
 4228    }
 4229
 4230    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4231        self.update_active_view_for_followers(window, cx);
 4232    }
 4233
 4234    fn handle_pane_event(
 4235        &mut self,
 4236        pane: &Entity<Pane>,
 4237        event: &pane::Event,
 4238        window: &mut Window,
 4239        cx: &mut Context<Self>,
 4240    ) {
 4241        let mut serialize_workspace = true;
 4242        match event {
 4243            pane::Event::AddItem { item } => {
 4244                item.added_to_pane(self, pane.clone(), window, cx);
 4245                cx.emit(Event::ItemAdded {
 4246                    item: item.boxed_clone(),
 4247                });
 4248            }
 4249            pane::Event::Split {
 4250                direction,
 4251                clone_active_item,
 4252            } => {
 4253                if *clone_active_item {
 4254                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4255                        .detach();
 4256                } else {
 4257                    self.split_and_move(pane.clone(), *direction, window, cx);
 4258                }
 4259            }
 4260            pane::Event::JoinIntoNext => {
 4261                self.join_pane_into_next(pane.clone(), window, cx);
 4262            }
 4263            pane::Event::JoinAll => {
 4264                self.join_all_panes(window, cx);
 4265            }
 4266            pane::Event::Remove { focus_on_pane } => {
 4267                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4268            }
 4269            pane::Event::ActivateItem {
 4270                local,
 4271                focus_changed,
 4272            } => {
 4273                window.invalidate_character_coordinates();
 4274
 4275                pane.update(cx, |pane, _| {
 4276                    pane.track_alternate_file_items();
 4277                });
 4278                if *local {
 4279                    self.unfollow_in_pane(pane, window, cx);
 4280                }
 4281                serialize_workspace = *focus_changed || pane != self.active_pane();
 4282                if pane == self.active_pane() {
 4283                    self.active_item_path_changed(window, cx);
 4284                    self.update_active_view_for_followers(window, cx);
 4285                } else if *local {
 4286                    self.set_active_pane(pane, window, cx);
 4287                }
 4288            }
 4289            pane::Event::UserSavedItem { item, save_intent } => {
 4290                cx.emit(Event::UserSavedItem {
 4291                    pane: pane.downgrade(),
 4292                    item: item.boxed_clone(),
 4293                    save_intent: *save_intent,
 4294                });
 4295                serialize_workspace = false;
 4296            }
 4297            pane::Event::ChangeItemTitle => {
 4298                if *pane == self.active_pane {
 4299                    self.active_item_path_changed(window, cx);
 4300                }
 4301                serialize_workspace = false;
 4302            }
 4303            pane::Event::RemovedItem { item } => {
 4304                cx.emit(Event::ActiveItemChanged);
 4305                self.update_window_edited(window, cx);
 4306                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4307                    && entry.get().entity_id() == pane.entity_id()
 4308                {
 4309                    entry.remove();
 4310                }
 4311                cx.emit(Event::ItemRemoved {
 4312                    item_id: item.item_id(),
 4313                });
 4314            }
 4315            pane::Event::Focus => {
 4316                window.invalidate_character_coordinates();
 4317                self.handle_pane_focused(pane.clone(), window, cx);
 4318            }
 4319            pane::Event::ZoomIn => {
 4320                if *pane == self.active_pane {
 4321                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4322                    if pane.read(cx).has_focus(window, cx) {
 4323                        self.zoomed = Some(pane.downgrade().into());
 4324                        self.zoomed_position = None;
 4325                        cx.emit(Event::ZoomChanged);
 4326                    }
 4327                    cx.notify();
 4328                }
 4329            }
 4330            pane::Event::ZoomOut => {
 4331                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4332                if self.zoomed_position.is_none() {
 4333                    self.zoomed = None;
 4334                    cx.emit(Event::ZoomChanged);
 4335                }
 4336                cx.notify();
 4337            }
 4338            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4339        }
 4340
 4341        if serialize_workspace {
 4342            self.serialize_workspace(window, cx);
 4343        }
 4344    }
 4345
 4346    pub fn unfollow_in_pane(
 4347        &mut self,
 4348        pane: &Entity<Pane>,
 4349        window: &mut Window,
 4350        cx: &mut Context<Workspace>,
 4351    ) -> Option<CollaboratorId> {
 4352        let leader_id = self.leader_for_pane(pane)?;
 4353        self.unfollow(leader_id, window, cx);
 4354        Some(leader_id)
 4355    }
 4356
 4357    pub fn split_pane(
 4358        &mut self,
 4359        pane_to_split: Entity<Pane>,
 4360        split_direction: SplitDirection,
 4361        window: &mut Window,
 4362        cx: &mut Context<Self>,
 4363    ) -> Entity<Pane> {
 4364        let new_pane = self.add_pane(window, cx);
 4365        self.center
 4366            .split(&pane_to_split, &new_pane, split_direction, cx)
 4367            .unwrap();
 4368        cx.notify();
 4369        new_pane
 4370    }
 4371
 4372    pub fn split_and_move(
 4373        &mut self,
 4374        pane: Entity<Pane>,
 4375        direction: SplitDirection,
 4376        window: &mut Window,
 4377        cx: &mut Context<Self>,
 4378    ) {
 4379        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4380            return;
 4381        };
 4382        let new_pane = self.add_pane(window, cx);
 4383        new_pane.update(cx, |pane, cx| {
 4384            pane.add_item(item, true, true, None, window, cx)
 4385        });
 4386        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4387        cx.notify();
 4388    }
 4389
 4390    pub fn split_and_clone(
 4391        &mut self,
 4392        pane: Entity<Pane>,
 4393        direction: SplitDirection,
 4394        window: &mut Window,
 4395        cx: &mut Context<Self>,
 4396    ) -> Task<Option<Entity<Pane>>> {
 4397        let Some(item) = pane.read(cx).active_item() else {
 4398            return Task::ready(None);
 4399        };
 4400        if !item.can_split(cx) {
 4401            return Task::ready(None);
 4402        }
 4403        let task = item.clone_on_split(self.database_id(), window, cx);
 4404        cx.spawn_in(window, async move |this, cx| {
 4405            if let Some(clone) = task.await {
 4406                this.update_in(cx, |this, window, cx| {
 4407                    let new_pane = this.add_pane(window, cx);
 4408                    new_pane.update(cx, |pane, cx| {
 4409                        pane.add_item(clone, true, true, None, window, cx)
 4410                    });
 4411                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4412                    cx.notify();
 4413                    new_pane
 4414                })
 4415                .ok()
 4416            } else {
 4417                None
 4418            }
 4419        })
 4420    }
 4421
 4422    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4423        let active_item = self.active_pane.read(cx).active_item();
 4424        for pane in &self.panes {
 4425            join_pane_into_active(&self.active_pane, pane, window, cx);
 4426        }
 4427        if let Some(active_item) = active_item {
 4428            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4429        }
 4430        cx.notify();
 4431    }
 4432
 4433    pub fn join_pane_into_next(
 4434        &mut self,
 4435        pane: Entity<Pane>,
 4436        window: &mut Window,
 4437        cx: &mut Context<Self>,
 4438    ) {
 4439        let next_pane = self
 4440            .find_pane_in_direction(SplitDirection::Right, cx)
 4441            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4442            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4443            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4444        let Some(next_pane) = next_pane else {
 4445            return;
 4446        };
 4447        move_all_items(&pane, &next_pane, window, cx);
 4448        cx.notify();
 4449    }
 4450
 4451    fn remove_pane(
 4452        &mut self,
 4453        pane: Entity<Pane>,
 4454        focus_on: Option<Entity<Pane>>,
 4455        window: &mut Window,
 4456        cx: &mut Context<Self>,
 4457    ) {
 4458        if self.center.remove(&pane, cx).unwrap() {
 4459            self.force_remove_pane(&pane, &focus_on, window, cx);
 4460            self.unfollow_in_pane(&pane, window, cx);
 4461            self.last_leaders_by_pane.remove(&pane.downgrade());
 4462            for removed_item in pane.read(cx).items() {
 4463                self.panes_by_item.remove(&removed_item.item_id());
 4464            }
 4465
 4466            cx.notify();
 4467        } else {
 4468            self.active_item_path_changed(window, cx);
 4469        }
 4470        cx.emit(Event::PaneRemoved);
 4471    }
 4472
 4473    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4474        &mut self.panes
 4475    }
 4476
 4477    pub fn panes(&self) -> &[Entity<Pane>] {
 4478        &self.panes
 4479    }
 4480
 4481    pub fn active_pane(&self) -> &Entity<Pane> {
 4482        &self.active_pane
 4483    }
 4484
 4485    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4486        for dock in self.all_docks() {
 4487            if dock.focus_handle(cx).contains_focused(window, cx)
 4488                && let Some(pane) = dock
 4489                    .read(cx)
 4490                    .active_panel()
 4491                    .and_then(|panel| panel.pane(cx))
 4492            {
 4493                return pane;
 4494            }
 4495        }
 4496        self.active_pane().clone()
 4497    }
 4498
 4499    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4500        self.find_pane_in_direction(SplitDirection::Right, cx)
 4501            .unwrap_or_else(|| {
 4502                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4503            })
 4504    }
 4505
 4506    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4507        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4508        weak_pane.upgrade()
 4509    }
 4510
 4511    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4512        self.follower_states.retain(|leader_id, state| {
 4513            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4514                for item in state.items_by_leader_view_id.values() {
 4515                    item.view.set_leader_id(None, window, cx);
 4516                }
 4517                false
 4518            } else {
 4519                true
 4520            }
 4521        });
 4522        cx.notify();
 4523    }
 4524
 4525    pub fn start_following(
 4526        &mut self,
 4527        leader_id: impl Into<CollaboratorId>,
 4528        window: &mut Window,
 4529        cx: &mut Context<Self>,
 4530    ) -> Option<Task<Result<()>>> {
 4531        let leader_id = leader_id.into();
 4532        let pane = self.active_pane().clone();
 4533
 4534        self.last_leaders_by_pane
 4535            .insert(pane.downgrade(), leader_id);
 4536        self.unfollow(leader_id, window, cx);
 4537        self.unfollow_in_pane(&pane, window, cx);
 4538        self.follower_states.insert(
 4539            leader_id,
 4540            FollowerState {
 4541                center_pane: pane.clone(),
 4542                dock_pane: None,
 4543                active_view_id: None,
 4544                items_by_leader_view_id: Default::default(),
 4545            },
 4546        );
 4547        cx.notify();
 4548
 4549        match leader_id {
 4550            CollaboratorId::PeerId(leader_peer_id) => {
 4551                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4552                let project_id = self.project.read(cx).remote_id();
 4553                let request = self.app_state.client.request(proto::Follow {
 4554                    room_id,
 4555                    project_id,
 4556                    leader_id: Some(leader_peer_id),
 4557                });
 4558
 4559                Some(cx.spawn_in(window, async move |this, cx| {
 4560                    let response = request.await?;
 4561                    this.update(cx, |this, _| {
 4562                        let state = this
 4563                            .follower_states
 4564                            .get_mut(&leader_id)
 4565                            .context("following interrupted")?;
 4566                        state.active_view_id = response
 4567                            .active_view
 4568                            .as_ref()
 4569                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4570                        anyhow::Ok(())
 4571                    })??;
 4572                    if let Some(view) = response.active_view {
 4573                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4574                    }
 4575                    this.update_in(cx, |this, window, cx| {
 4576                        this.leader_updated(leader_id, window, cx)
 4577                    })?;
 4578                    Ok(())
 4579                }))
 4580            }
 4581            CollaboratorId::Agent => {
 4582                self.leader_updated(leader_id, window, cx)?;
 4583                Some(Task::ready(Ok(())))
 4584            }
 4585        }
 4586    }
 4587
 4588    pub fn follow_next_collaborator(
 4589        &mut self,
 4590        _: &FollowNextCollaborator,
 4591        window: &mut Window,
 4592        cx: &mut Context<Self>,
 4593    ) {
 4594        let collaborators = self.project.read(cx).collaborators();
 4595        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4596            let mut collaborators = collaborators.keys().copied();
 4597            for peer_id in collaborators.by_ref() {
 4598                if CollaboratorId::PeerId(peer_id) == leader_id {
 4599                    break;
 4600                }
 4601            }
 4602            collaborators.next().map(CollaboratorId::PeerId)
 4603        } else if let Some(last_leader_id) =
 4604            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4605        {
 4606            match last_leader_id {
 4607                CollaboratorId::PeerId(peer_id) => {
 4608                    if collaborators.contains_key(peer_id) {
 4609                        Some(*last_leader_id)
 4610                    } else {
 4611                        None
 4612                    }
 4613                }
 4614                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4615            }
 4616        } else {
 4617            None
 4618        };
 4619
 4620        let pane = self.active_pane.clone();
 4621        let Some(leader_id) = next_leader_id.or_else(|| {
 4622            Some(CollaboratorId::PeerId(
 4623                collaborators.keys().copied().next()?,
 4624            ))
 4625        }) else {
 4626            return;
 4627        };
 4628        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4629            return;
 4630        }
 4631        if let Some(task) = self.start_following(leader_id, window, cx) {
 4632            task.detach_and_log_err(cx)
 4633        }
 4634    }
 4635
 4636    pub fn follow(
 4637        &mut self,
 4638        leader_id: impl Into<CollaboratorId>,
 4639        window: &mut Window,
 4640        cx: &mut Context<Self>,
 4641    ) {
 4642        let leader_id = leader_id.into();
 4643
 4644        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4645            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4646                return;
 4647            };
 4648            let room = room.read(cx);
 4649            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4650                return;
 4651            };
 4652
 4653            let project = self.project.read(cx);
 4654
 4655            let other_project_id = match remote_participant.location {
 4656                call::ParticipantLocation::External => None,
 4657                call::ParticipantLocation::UnsharedProject => None,
 4658                call::ParticipantLocation::SharedProject { project_id } => {
 4659                    if Some(project_id) == project.remote_id() {
 4660                        None
 4661                    } else {
 4662                        Some(project_id)
 4663                    }
 4664                }
 4665            };
 4666
 4667            // if they are active in another project, follow there.
 4668            if let Some(project_id) = other_project_id {
 4669                let app_state = self.app_state.clone();
 4670                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4671                    .detach_and_log_err(cx);
 4672            }
 4673        }
 4674
 4675        // if you're already following, find the right pane and focus it.
 4676        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4677            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4678
 4679            return;
 4680        }
 4681
 4682        // Otherwise, follow.
 4683        if let Some(task) = self.start_following(leader_id, window, cx) {
 4684            task.detach_and_log_err(cx)
 4685        }
 4686    }
 4687
 4688    pub fn unfollow(
 4689        &mut self,
 4690        leader_id: impl Into<CollaboratorId>,
 4691        window: &mut Window,
 4692        cx: &mut Context<Self>,
 4693    ) -> Option<()> {
 4694        cx.notify();
 4695
 4696        let leader_id = leader_id.into();
 4697        let state = self.follower_states.remove(&leader_id)?;
 4698        for (_, item) in state.items_by_leader_view_id {
 4699            item.view.set_leader_id(None, window, cx);
 4700        }
 4701
 4702        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4703            let project_id = self.project.read(cx).remote_id();
 4704            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4705            self.app_state
 4706                .client
 4707                .send(proto::Unfollow {
 4708                    room_id,
 4709                    project_id,
 4710                    leader_id: Some(leader_peer_id),
 4711                })
 4712                .log_err();
 4713        }
 4714
 4715        Some(())
 4716    }
 4717
 4718    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4719        self.follower_states.contains_key(&id.into())
 4720    }
 4721
 4722    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4723        cx.emit(Event::ActiveItemChanged);
 4724        let active_entry = self.active_project_path(cx);
 4725        self.project.update(cx, |project, cx| {
 4726            project.set_active_path(active_entry.clone(), cx)
 4727        });
 4728
 4729        if let Some(project_path) = &active_entry {
 4730            let git_store_entity = self.project.read(cx).git_store().clone();
 4731            git_store_entity.update(cx, |git_store, cx| {
 4732                git_store.set_active_repo_for_path(project_path, cx);
 4733            });
 4734        }
 4735
 4736        self.update_window_title(window, cx);
 4737    }
 4738
 4739    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4740        let project = self.project().read(cx);
 4741        let mut title = String::new();
 4742
 4743        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4744            let name = {
 4745                let settings_location = SettingsLocation {
 4746                    worktree_id: worktree.read(cx).id(),
 4747                    path: RelPath::empty(),
 4748                };
 4749
 4750                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4751                match &settings.project_name {
 4752                    Some(name) => name.as_str(),
 4753                    None => worktree.read(cx).root_name_str(),
 4754                }
 4755            };
 4756            if i > 0 {
 4757                title.push_str(", ");
 4758            }
 4759            title.push_str(name);
 4760        }
 4761
 4762        if title.is_empty() {
 4763            title = "empty project".to_string();
 4764        }
 4765
 4766        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4767            let filename = path.path.file_name().or_else(|| {
 4768                Some(
 4769                    project
 4770                        .worktree_for_id(path.worktree_id, cx)?
 4771                        .read(cx)
 4772                        .root_name_str(),
 4773                )
 4774            });
 4775
 4776            if let Some(filename) = filename {
 4777                title.push_str("");
 4778                title.push_str(filename.as_ref());
 4779            }
 4780        }
 4781
 4782        if project.is_via_collab() {
 4783            title.push_str("");
 4784        } else if project.is_shared() {
 4785            title.push_str("");
 4786        }
 4787
 4788        if let Some(last_title) = self.last_window_title.as_ref()
 4789            && &title == last_title
 4790        {
 4791            return;
 4792        }
 4793        window.set_window_title(&title);
 4794        SystemWindowTabController::update_tab_title(
 4795            cx,
 4796            window.window_handle().window_id(),
 4797            SharedString::from(&title),
 4798        );
 4799        self.last_window_title = Some(title);
 4800    }
 4801
 4802    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4803        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4804        if is_edited != self.window_edited {
 4805            self.window_edited = is_edited;
 4806            window.set_window_edited(self.window_edited)
 4807        }
 4808    }
 4809
 4810    fn update_item_dirty_state(
 4811        &mut self,
 4812        item: &dyn ItemHandle,
 4813        window: &mut Window,
 4814        cx: &mut App,
 4815    ) {
 4816        let is_dirty = item.is_dirty(cx);
 4817        let item_id = item.item_id();
 4818        let was_dirty = self.dirty_items.contains_key(&item_id);
 4819        if is_dirty == was_dirty {
 4820            return;
 4821        }
 4822        if was_dirty {
 4823            self.dirty_items.remove(&item_id);
 4824            self.update_window_edited(window, cx);
 4825            return;
 4826        }
 4827        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4828            let s = item.on_release(
 4829                cx,
 4830                Box::new(move |cx| {
 4831                    window_handle
 4832                        .update(cx, |this, window, cx| {
 4833                            this.dirty_items.remove(&item_id);
 4834                            this.update_window_edited(window, cx)
 4835                        })
 4836                        .ok();
 4837                }),
 4838            );
 4839            self.dirty_items.insert(item_id, s);
 4840            self.update_window_edited(window, cx);
 4841        }
 4842    }
 4843
 4844    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4845        if self.notifications.is_empty() {
 4846            None
 4847        } else {
 4848            Some(
 4849                div()
 4850                    .absolute()
 4851                    .right_3()
 4852                    .bottom_3()
 4853                    .w_112()
 4854                    .h_full()
 4855                    .flex()
 4856                    .flex_col()
 4857                    .justify_end()
 4858                    .gap_2()
 4859                    .children(
 4860                        self.notifications
 4861                            .iter()
 4862                            .map(|(_, notification)| notification.clone().into_any()),
 4863                    ),
 4864            )
 4865        }
 4866    }
 4867
 4868    // RPC handlers
 4869
 4870    fn active_view_for_follower(
 4871        &self,
 4872        follower_project_id: Option<u64>,
 4873        window: &mut Window,
 4874        cx: &mut Context<Self>,
 4875    ) -> Option<proto::View> {
 4876        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4877        let item = item?;
 4878        let leader_id = self
 4879            .pane_for(&*item)
 4880            .and_then(|pane| self.leader_for_pane(&pane));
 4881        let leader_peer_id = match leader_id {
 4882            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4883            Some(CollaboratorId::Agent) | None => None,
 4884        };
 4885
 4886        let item_handle = item.to_followable_item_handle(cx)?;
 4887        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4888        let variant = item_handle.to_state_proto(window, cx)?;
 4889
 4890        if item_handle.is_project_item(window, cx)
 4891            && (follower_project_id.is_none()
 4892                || follower_project_id != self.project.read(cx).remote_id())
 4893        {
 4894            return None;
 4895        }
 4896
 4897        Some(proto::View {
 4898            id: id.to_proto(),
 4899            leader_id: leader_peer_id,
 4900            variant: Some(variant),
 4901            panel_id: panel_id.map(|id| id as i32),
 4902        })
 4903    }
 4904
 4905    fn handle_follow(
 4906        &mut self,
 4907        follower_project_id: Option<u64>,
 4908        window: &mut Window,
 4909        cx: &mut Context<Self>,
 4910    ) -> proto::FollowResponse {
 4911        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4912
 4913        cx.notify();
 4914        proto::FollowResponse {
 4915            // TODO: Remove after version 0.145.x stabilizes.
 4916            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4917            views: active_view.iter().cloned().collect(),
 4918            active_view,
 4919        }
 4920    }
 4921
 4922    fn handle_update_followers(
 4923        &mut self,
 4924        leader_id: PeerId,
 4925        message: proto::UpdateFollowers,
 4926        _window: &mut Window,
 4927        _cx: &mut Context<Self>,
 4928    ) {
 4929        self.leader_updates_tx
 4930            .unbounded_send((leader_id, message))
 4931            .ok();
 4932    }
 4933
 4934    async fn process_leader_update(
 4935        this: &WeakEntity<Self>,
 4936        leader_id: PeerId,
 4937        update: proto::UpdateFollowers,
 4938        cx: &mut AsyncWindowContext,
 4939    ) -> Result<()> {
 4940        match update.variant.context("invalid update")? {
 4941            proto::update_followers::Variant::CreateView(view) => {
 4942                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4943                let should_add_view = this.update(cx, |this, _| {
 4944                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4945                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4946                    } else {
 4947                        anyhow::Ok(false)
 4948                    }
 4949                })??;
 4950
 4951                if should_add_view {
 4952                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4953                }
 4954            }
 4955            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4956                let should_add_view = this.update(cx, |this, _| {
 4957                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4958                        state.active_view_id = update_active_view
 4959                            .view
 4960                            .as_ref()
 4961                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4962
 4963                        if state.active_view_id.is_some_and(|view_id| {
 4964                            !state.items_by_leader_view_id.contains_key(&view_id)
 4965                        }) {
 4966                            anyhow::Ok(true)
 4967                        } else {
 4968                            anyhow::Ok(false)
 4969                        }
 4970                    } else {
 4971                        anyhow::Ok(false)
 4972                    }
 4973                })??;
 4974
 4975                if should_add_view && let Some(view) = update_active_view.view {
 4976                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4977                }
 4978            }
 4979            proto::update_followers::Variant::UpdateView(update_view) => {
 4980                let variant = update_view.variant.context("missing update view variant")?;
 4981                let id = update_view.id.context("missing update view id")?;
 4982                let mut tasks = Vec::new();
 4983                this.update_in(cx, |this, window, cx| {
 4984                    let project = this.project.clone();
 4985                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4986                        let view_id = ViewId::from_proto(id.clone())?;
 4987                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4988                            tasks.push(item.view.apply_update_proto(
 4989                                &project,
 4990                                variant.clone(),
 4991                                window,
 4992                                cx,
 4993                            ));
 4994                        }
 4995                    }
 4996                    anyhow::Ok(())
 4997                })??;
 4998                try_join_all(tasks).await.log_err();
 4999            }
 5000        }
 5001        this.update_in(cx, |this, window, cx| {
 5002            this.leader_updated(leader_id, window, cx)
 5003        })?;
 5004        Ok(())
 5005    }
 5006
 5007    async fn add_view_from_leader(
 5008        this: WeakEntity<Self>,
 5009        leader_id: PeerId,
 5010        view: &proto::View,
 5011        cx: &mut AsyncWindowContext,
 5012    ) -> Result<()> {
 5013        let this = this.upgrade().context("workspace dropped")?;
 5014
 5015        let Some(id) = view.id.clone() else {
 5016            anyhow::bail!("no id for view");
 5017        };
 5018        let id = ViewId::from_proto(id)?;
 5019        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5020
 5021        let pane = this.update(cx, |this, _cx| {
 5022            let state = this
 5023                .follower_states
 5024                .get(&leader_id.into())
 5025                .context("stopped following")?;
 5026            anyhow::Ok(state.pane().clone())
 5027        })??;
 5028        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5029            let client = this.read(cx).client().clone();
 5030            pane.items().find_map(|item| {
 5031                let item = item.to_followable_item_handle(cx)?;
 5032                if item.remote_id(&client, window, cx) == Some(id) {
 5033                    Some(item)
 5034                } else {
 5035                    None
 5036                }
 5037            })
 5038        })?;
 5039        let item = if let Some(existing_item) = existing_item {
 5040            existing_item
 5041        } else {
 5042            let variant = view.variant.clone();
 5043            anyhow::ensure!(variant.is_some(), "missing view variant");
 5044
 5045            let task = cx.update(|window, cx| {
 5046                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5047            })?;
 5048
 5049            let Some(task) = task else {
 5050                anyhow::bail!(
 5051                    "failed to construct view from leader (maybe from a different version of zed?)"
 5052                );
 5053            };
 5054
 5055            let mut new_item = task.await?;
 5056            pane.update_in(cx, |pane, window, cx| {
 5057                let mut item_to_remove = None;
 5058                for (ix, item) in pane.items().enumerate() {
 5059                    if let Some(item) = item.to_followable_item_handle(cx) {
 5060                        match new_item.dedup(item.as_ref(), window, cx) {
 5061                            Some(item::Dedup::KeepExisting) => {
 5062                                new_item =
 5063                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5064                                break;
 5065                            }
 5066                            Some(item::Dedup::ReplaceExisting) => {
 5067                                item_to_remove = Some((ix, item.item_id()));
 5068                                break;
 5069                            }
 5070                            None => {}
 5071                        }
 5072                    }
 5073                }
 5074
 5075                if let Some((ix, id)) = item_to_remove {
 5076                    pane.remove_item(id, false, false, window, cx);
 5077                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5078                }
 5079            })?;
 5080
 5081            new_item
 5082        };
 5083
 5084        this.update_in(cx, |this, window, cx| {
 5085            let state = this.follower_states.get_mut(&leader_id.into())?;
 5086            item.set_leader_id(Some(leader_id.into()), window, cx);
 5087            state.items_by_leader_view_id.insert(
 5088                id,
 5089                FollowerView {
 5090                    view: item,
 5091                    location: panel_id,
 5092                },
 5093            );
 5094
 5095            Some(())
 5096        })?;
 5097
 5098        Ok(())
 5099    }
 5100
 5101    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5102        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5103            return;
 5104        };
 5105
 5106        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5107            let buffer_entity_id = agent_location.buffer.entity_id();
 5108            let view_id = ViewId {
 5109                creator: CollaboratorId::Agent,
 5110                id: buffer_entity_id.as_u64(),
 5111            };
 5112            follower_state.active_view_id = Some(view_id);
 5113
 5114            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5115                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5116                hash_map::Entry::Vacant(entry) => {
 5117                    let existing_view =
 5118                        follower_state
 5119                            .center_pane
 5120                            .read(cx)
 5121                            .items()
 5122                            .find_map(|item| {
 5123                                let item = item.to_followable_item_handle(cx)?;
 5124                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5125                                    && item.project_item_model_ids(cx).as_slice()
 5126                                        == [buffer_entity_id]
 5127                                {
 5128                                    Some(item)
 5129                                } else {
 5130                                    None
 5131                                }
 5132                            });
 5133                    let view = existing_view.or_else(|| {
 5134                        agent_location.buffer.upgrade().and_then(|buffer| {
 5135                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5136                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5137                            })?
 5138                            .to_followable_item_handle(cx)
 5139                        })
 5140                    });
 5141
 5142                    view.map(|view| {
 5143                        entry.insert(FollowerView {
 5144                            view,
 5145                            location: None,
 5146                        })
 5147                    })
 5148                }
 5149            };
 5150
 5151            if let Some(item) = item {
 5152                item.view
 5153                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5154                item.view
 5155                    .update_agent_location(agent_location.position, window, cx);
 5156            }
 5157        } else {
 5158            follower_state.active_view_id = None;
 5159        }
 5160
 5161        self.leader_updated(CollaboratorId::Agent, window, cx);
 5162    }
 5163
 5164    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5165        let mut is_project_item = true;
 5166        let mut update = proto::UpdateActiveView::default();
 5167        if window.is_window_active() {
 5168            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5169
 5170            if let Some(item) = active_item
 5171                && item.item_focus_handle(cx).contains_focused(window, cx)
 5172            {
 5173                let leader_id = self
 5174                    .pane_for(&*item)
 5175                    .and_then(|pane| self.leader_for_pane(&pane));
 5176                let leader_peer_id = match leader_id {
 5177                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5178                    Some(CollaboratorId::Agent) | None => None,
 5179                };
 5180
 5181                if let Some(item) = item.to_followable_item_handle(cx) {
 5182                    let id = item
 5183                        .remote_id(&self.app_state.client, window, cx)
 5184                        .map(|id| id.to_proto());
 5185
 5186                    if let Some(id) = id
 5187                        && let Some(variant) = item.to_state_proto(window, cx)
 5188                    {
 5189                        let view = Some(proto::View {
 5190                            id: id.clone(),
 5191                            leader_id: leader_peer_id,
 5192                            variant: Some(variant),
 5193                            panel_id: panel_id.map(|id| id as i32),
 5194                        });
 5195
 5196                        is_project_item = item.is_project_item(window, cx);
 5197                        update = proto::UpdateActiveView {
 5198                            view,
 5199                            // TODO: Remove after version 0.145.x stabilizes.
 5200                            id,
 5201                            leader_id: leader_peer_id,
 5202                        };
 5203                    };
 5204                }
 5205            }
 5206        }
 5207
 5208        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5209        if active_view_id != self.last_active_view_id.as_ref() {
 5210            self.last_active_view_id = active_view_id.cloned();
 5211            self.update_followers(
 5212                is_project_item,
 5213                proto::update_followers::Variant::UpdateActiveView(update),
 5214                window,
 5215                cx,
 5216            );
 5217        }
 5218    }
 5219
 5220    fn active_item_for_followers(
 5221        &self,
 5222        window: &mut Window,
 5223        cx: &mut App,
 5224    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5225        let mut active_item = None;
 5226        let mut panel_id = None;
 5227        for dock in self.all_docks() {
 5228            if dock.focus_handle(cx).contains_focused(window, cx)
 5229                && let Some(panel) = dock.read(cx).active_panel()
 5230                && let Some(pane) = panel.pane(cx)
 5231                && let Some(item) = pane.read(cx).active_item()
 5232            {
 5233                active_item = Some(item);
 5234                panel_id = panel.remote_id();
 5235                break;
 5236            }
 5237        }
 5238
 5239        if active_item.is_none() {
 5240            active_item = self.active_pane().read(cx).active_item();
 5241        }
 5242        (active_item, panel_id)
 5243    }
 5244
 5245    fn update_followers(
 5246        &self,
 5247        project_only: bool,
 5248        update: proto::update_followers::Variant,
 5249        _: &mut Window,
 5250        cx: &mut App,
 5251    ) -> Option<()> {
 5252        // If this update only applies to for followers in the current project,
 5253        // then skip it unless this project is shared. If it applies to all
 5254        // followers, regardless of project, then set `project_id` to none,
 5255        // indicating that it goes to all followers.
 5256        let project_id = if project_only {
 5257            Some(self.project.read(cx).remote_id()?)
 5258        } else {
 5259            None
 5260        };
 5261        self.app_state().workspace_store.update(cx, |store, cx| {
 5262            store.update_followers(project_id, update, cx)
 5263        })
 5264    }
 5265
 5266    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5267        self.follower_states.iter().find_map(|(leader_id, state)| {
 5268            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5269                Some(*leader_id)
 5270            } else {
 5271                None
 5272            }
 5273        })
 5274    }
 5275
 5276    fn leader_updated(
 5277        &mut self,
 5278        leader_id: impl Into<CollaboratorId>,
 5279        window: &mut Window,
 5280        cx: &mut Context<Self>,
 5281    ) -> Option<Box<dyn ItemHandle>> {
 5282        cx.notify();
 5283
 5284        let leader_id = leader_id.into();
 5285        let (panel_id, item) = match leader_id {
 5286            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5287            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5288        };
 5289
 5290        let state = self.follower_states.get(&leader_id)?;
 5291        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5292        let pane;
 5293        if let Some(panel_id) = panel_id {
 5294            pane = self
 5295                .activate_panel_for_proto_id(panel_id, window, cx)?
 5296                .pane(cx)?;
 5297            let state = self.follower_states.get_mut(&leader_id)?;
 5298            state.dock_pane = Some(pane.clone());
 5299        } else {
 5300            pane = state.center_pane.clone();
 5301            let state = self.follower_states.get_mut(&leader_id)?;
 5302            if let Some(dock_pane) = state.dock_pane.take() {
 5303                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5304            }
 5305        }
 5306
 5307        pane.update(cx, |pane, cx| {
 5308            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5309            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5310                pane.activate_item(index, false, false, window, cx);
 5311            } else {
 5312                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5313            }
 5314
 5315            if focus_active_item {
 5316                pane.focus_active_item(window, cx)
 5317            }
 5318        });
 5319
 5320        Some(item)
 5321    }
 5322
 5323    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5324        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5325        let active_view_id = state.active_view_id?;
 5326        Some(
 5327            state
 5328                .items_by_leader_view_id
 5329                .get(&active_view_id)?
 5330                .view
 5331                .boxed_clone(),
 5332        )
 5333    }
 5334
 5335    fn active_item_for_peer(
 5336        &self,
 5337        peer_id: PeerId,
 5338        window: &mut Window,
 5339        cx: &mut Context<Self>,
 5340    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5341        let call = self.active_call()?;
 5342        let room = call.read(cx).room()?.read(cx);
 5343        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5344        let leader_in_this_app;
 5345        let leader_in_this_project;
 5346        match participant.location {
 5347            call::ParticipantLocation::SharedProject { project_id } => {
 5348                leader_in_this_app = true;
 5349                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5350            }
 5351            call::ParticipantLocation::UnsharedProject => {
 5352                leader_in_this_app = true;
 5353                leader_in_this_project = false;
 5354            }
 5355            call::ParticipantLocation::External => {
 5356                leader_in_this_app = false;
 5357                leader_in_this_project = false;
 5358            }
 5359        };
 5360        let state = self.follower_states.get(&peer_id.into())?;
 5361        let mut item_to_activate = None;
 5362        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5363            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5364                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5365            {
 5366                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5367            }
 5368        } else if let Some(shared_screen) =
 5369            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5370        {
 5371            item_to_activate = Some((None, Box::new(shared_screen)));
 5372        }
 5373        item_to_activate
 5374    }
 5375
 5376    fn shared_screen_for_peer(
 5377        &self,
 5378        peer_id: PeerId,
 5379        pane: &Entity<Pane>,
 5380        window: &mut Window,
 5381        cx: &mut App,
 5382    ) -> Option<Entity<SharedScreen>> {
 5383        let call = self.active_call()?;
 5384        let room = call.read(cx).room()?.clone();
 5385        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5386        let track = participant.video_tracks.values().next()?.clone();
 5387        let user = participant.user.clone();
 5388
 5389        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5390            if item.read(cx).peer_id == peer_id {
 5391                return Some(item);
 5392            }
 5393        }
 5394
 5395        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5396    }
 5397
 5398    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5399        if window.is_window_active() {
 5400            self.update_active_view_for_followers(window, cx);
 5401
 5402            if let Some(database_id) = self.database_id {
 5403                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5404                    .detach();
 5405            }
 5406        } else {
 5407            for pane in &self.panes {
 5408                pane.update(cx, |pane, cx| {
 5409                    if let Some(item) = pane.active_item() {
 5410                        item.workspace_deactivated(window, cx);
 5411                    }
 5412                    for item in pane.items() {
 5413                        if matches!(
 5414                            item.workspace_settings(cx).autosave,
 5415                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5416                        ) {
 5417                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5418                                .detach_and_log_err(cx);
 5419                        }
 5420                    }
 5421                });
 5422            }
 5423        }
 5424    }
 5425
 5426    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5427        self.active_call.as_ref().map(|(call, _)| call)
 5428    }
 5429
 5430    fn on_active_call_event(
 5431        &mut self,
 5432        _: &Entity<ActiveCall>,
 5433        event: &call::room::Event,
 5434        window: &mut Window,
 5435        cx: &mut Context<Self>,
 5436    ) {
 5437        match event {
 5438            call::room::Event::ParticipantLocationChanged { participant_id }
 5439            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5440                self.leader_updated(participant_id, window, cx);
 5441            }
 5442            _ => {}
 5443        }
 5444    }
 5445
 5446    pub fn database_id(&self) -> Option<WorkspaceId> {
 5447        self.database_id
 5448    }
 5449
 5450    pub fn session_id(&self) -> Option<String> {
 5451        self.session_id.clone()
 5452    }
 5453
 5454    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5455        let project = self.project().read(cx);
 5456        project
 5457            .visible_worktrees(cx)
 5458            .map(|worktree| worktree.read(cx).abs_path())
 5459            .collect::<Vec<_>>()
 5460    }
 5461
 5462    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5463        match member {
 5464            Member::Axis(PaneAxis { members, .. }) => {
 5465                for child in members.iter() {
 5466                    self.remove_panes(child.clone(), window, cx)
 5467                }
 5468            }
 5469            Member::Pane(pane) => {
 5470                self.force_remove_pane(&pane, &None, window, cx);
 5471            }
 5472        }
 5473    }
 5474
 5475    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5476        self.session_id.take();
 5477        self.serialize_workspace_internal(window, cx)
 5478    }
 5479
 5480    fn force_remove_pane(
 5481        &mut self,
 5482        pane: &Entity<Pane>,
 5483        focus_on: &Option<Entity<Pane>>,
 5484        window: &mut Window,
 5485        cx: &mut Context<Workspace>,
 5486    ) {
 5487        self.panes.retain(|p| p != pane);
 5488        if let Some(focus_on) = focus_on {
 5489            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5490        } else if self.active_pane() == pane {
 5491            self.panes
 5492                .last()
 5493                .unwrap()
 5494                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5495        }
 5496        if self.last_active_center_pane == Some(pane.downgrade()) {
 5497            self.last_active_center_pane = None;
 5498        }
 5499        cx.notify();
 5500    }
 5501
 5502    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5503        if self._schedule_serialize_workspace.is_none() {
 5504            self._schedule_serialize_workspace =
 5505                Some(cx.spawn_in(window, async move |this, cx| {
 5506                    cx.background_executor()
 5507                        .timer(SERIALIZATION_THROTTLE_TIME)
 5508                        .await;
 5509                    this.update_in(cx, |this, window, cx| {
 5510                        this.serialize_workspace_internal(window, cx).detach();
 5511                        this._schedule_serialize_workspace.take();
 5512                    })
 5513                    .log_err();
 5514                }));
 5515        }
 5516    }
 5517
 5518    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5519        let Some(database_id) = self.database_id() else {
 5520            return Task::ready(());
 5521        };
 5522
 5523        fn serialize_pane_handle(
 5524            pane_handle: &Entity<Pane>,
 5525            window: &mut Window,
 5526            cx: &mut App,
 5527        ) -> SerializedPane {
 5528            let (items, active, pinned_count) = {
 5529                let pane = pane_handle.read(cx);
 5530                let active_item_id = pane.active_item().map(|item| item.item_id());
 5531                (
 5532                    pane.items()
 5533                        .filter_map(|handle| {
 5534                            let handle = handle.to_serializable_item_handle(cx)?;
 5535
 5536                            Some(SerializedItem {
 5537                                kind: Arc::from(handle.serialized_item_kind()),
 5538                                item_id: handle.item_id().as_u64(),
 5539                                active: Some(handle.item_id()) == active_item_id,
 5540                                preview: pane.is_active_preview_item(handle.item_id()),
 5541                            })
 5542                        })
 5543                        .collect::<Vec<_>>(),
 5544                    pane.has_focus(window, cx),
 5545                    pane.pinned_count(),
 5546                )
 5547            };
 5548
 5549            SerializedPane::new(items, active, pinned_count)
 5550        }
 5551
 5552        fn build_serialized_pane_group(
 5553            pane_group: &Member,
 5554            window: &mut Window,
 5555            cx: &mut App,
 5556        ) -> SerializedPaneGroup {
 5557            match pane_group {
 5558                Member::Axis(PaneAxis {
 5559                    axis,
 5560                    members,
 5561                    flexes,
 5562                    bounding_boxes: _,
 5563                }) => SerializedPaneGroup::Group {
 5564                    axis: SerializedAxis(*axis),
 5565                    children: members
 5566                        .iter()
 5567                        .map(|member| build_serialized_pane_group(member, window, cx))
 5568                        .collect::<Vec<_>>(),
 5569                    flexes: Some(flexes.lock().clone()),
 5570                },
 5571                Member::Pane(pane_handle) => {
 5572                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5573                }
 5574            }
 5575        }
 5576
 5577        fn build_serialized_docks(
 5578            this: &Workspace,
 5579            window: &mut Window,
 5580            cx: &mut App,
 5581        ) -> DockStructure {
 5582            let left_dock = this.left_dock.read(cx);
 5583            let left_visible = left_dock.is_open();
 5584            let left_active_panel = left_dock
 5585                .active_panel()
 5586                .map(|panel| panel.persistent_name().to_string());
 5587            let left_dock_zoom = left_dock
 5588                .active_panel()
 5589                .map(|panel| panel.is_zoomed(window, cx))
 5590                .unwrap_or(false);
 5591
 5592            let right_dock = this.right_dock.read(cx);
 5593            let right_visible = right_dock.is_open();
 5594            let right_active_panel = right_dock
 5595                .active_panel()
 5596                .map(|panel| panel.persistent_name().to_string());
 5597            let right_dock_zoom = right_dock
 5598                .active_panel()
 5599                .map(|panel| panel.is_zoomed(window, cx))
 5600                .unwrap_or(false);
 5601
 5602            let bottom_dock = this.bottom_dock.read(cx);
 5603            let bottom_visible = bottom_dock.is_open();
 5604            let bottom_active_panel = bottom_dock
 5605                .active_panel()
 5606                .map(|panel| panel.persistent_name().to_string());
 5607            let bottom_dock_zoom = bottom_dock
 5608                .active_panel()
 5609                .map(|panel| panel.is_zoomed(window, cx))
 5610                .unwrap_or(false);
 5611
 5612            DockStructure {
 5613                left: DockData {
 5614                    visible: left_visible,
 5615                    active_panel: left_active_panel,
 5616                    zoom: left_dock_zoom,
 5617                },
 5618                right: DockData {
 5619                    visible: right_visible,
 5620                    active_panel: right_active_panel,
 5621                    zoom: right_dock_zoom,
 5622                },
 5623                bottom: DockData {
 5624                    visible: bottom_visible,
 5625                    active_panel: bottom_active_panel,
 5626                    zoom: bottom_dock_zoom,
 5627                },
 5628            }
 5629        }
 5630
 5631        match self.serialize_workspace_location(cx) {
 5632            WorkspaceLocation::Location(location, paths) => {
 5633                let breakpoints = self.project.update(cx, |project, cx| {
 5634                    project
 5635                        .breakpoint_store()
 5636                        .read(cx)
 5637                        .all_source_breakpoints(cx)
 5638                });
 5639                let user_toolchains = self
 5640                    .project
 5641                    .read(cx)
 5642                    .user_toolchains(cx)
 5643                    .unwrap_or_default();
 5644
 5645                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5646                let docks = build_serialized_docks(self, window, cx);
 5647                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5648
 5649                let serialized_workspace = SerializedWorkspace {
 5650                    id: database_id,
 5651                    location,
 5652                    paths,
 5653                    center_group,
 5654                    window_bounds,
 5655                    display: Default::default(),
 5656                    docks,
 5657                    centered_layout: self.centered_layout,
 5658                    session_id: self.session_id.clone(),
 5659                    breakpoints,
 5660                    window_id: Some(window.window_handle().window_id().as_u64()),
 5661                    user_toolchains,
 5662                };
 5663
 5664                window.spawn(cx, async move |_| {
 5665                    persistence::DB.save_workspace(serialized_workspace).await;
 5666                })
 5667            }
 5668            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5669                persistence::DB
 5670                    .set_session_id(database_id, None)
 5671                    .await
 5672                    .log_err();
 5673            }),
 5674            WorkspaceLocation::None => Task::ready(()),
 5675        }
 5676    }
 5677
 5678    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5679        let paths = PathList::new(&self.root_paths(cx));
 5680        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5681            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5682        } else if self.project.read(cx).is_local() {
 5683            if !paths.is_empty() {
 5684                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5685            } else {
 5686                WorkspaceLocation::DetachFromSession
 5687            }
 5688        } else {
 5689            WorkspaceLocation::None
 5690        }
 5691    }
 5692
 5693    fn update_history(&self, cx: &mut App) {
 5694        let Some(id) = self.database_id() else {
 5695            return;
 5696        };
 5697        if !self.project.read(cx).is_local() {
 5698            return;
 5699        }
 5700        if let Some(manager) = HistoryManager::global(cx) {
 5701            let paths = PathList::new(&self.root_paths(cx));
 5702            manager.update(cx, |this, cx| {
 5703                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5704            });
 5705        }
 5706    }
 5707
 5708    async fn serialize_items(
 5709        this: &WeakEntity<Self>,
 5710        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5711        cx: &mut AsyncWindowContext,
 5712    ) -> Result<()> {
 5713        const CHUNK_SIZE: usize = 200;
 5714
 5715        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5716
 5717        while let Some(items_received) = serializable_items.next().await {
 5718            let unique_items =
 5719                items_received
 5720                    .into_iter()
 5721                    .fold(HashMap::default(), |mut acc, item| {
 5722                        acc.entry(item.item_id()).or_insert(item);
 5723                        acc
 5724                    });
 5725
 5726            // We use into_iter() here so that the references to the items are moved into
 5727            // the tasks and not kept alive while we're sleeping.
 5728            for (_, item) in unique_items.into_iter() {
 5729                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5730                    item.serialize(workspace, false, window, cx)
 5731                }) {
 5732                    cx.background_spawn(async move { task.await.log_err() })
 5733                        .detach();
 5734                }
 5735            }
 5736
 5737            cx.background_executor()
 5738                .timer(SERIALIZATION_THROTTLE_TIME)
 5739                .await;
 5740        }
 5741
 5742        Ok(())
 5743    }
 5744
 5745    pub(crate) fn enqueue_item_serialization(
 5746        &mut self,
 5747        item: Box<dyn SerializableItemHandle>,
 5748    ) -> Result<()> {
 5749        self.serializable_items_tx
 5750            .unbounded_send(item)
 5751            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5752    }
 5753
 5754    pub(crate) fn load_workspace(
 5755        serialized_workspace: SerializedWorkspace,
 5756        paths_to_open: Vec<Option<ProjectPath>>,
 5757        window: &mut Window,
 5758        cx: &mut Context<Workspace>,
 5759    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5760        cx.spawn_in(window, async move |workspace, cx| {
 5761            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5762
 5763            let mut center_group = None;
 5764            let mut center_items = None;
 5765
 5766            // Traverse the splits tree and add to things
 5767            if let Some((group, active_pane, items)) = serialized_workspace
 5768                .center_group
 5769                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5770                .await
 5771            {
 5772                center_items = Some(items);
 5773                center_group = Some((group, active_pane))
 5774            }
 5775
 5776            let mut items_by_project_path = HashMap::default();
 5777            let mut item_ids_by_kind = HashMap::default();
 5778            let mut all_deserialized_items = Vec::default();
 5779            cx.update(|_, cx| {
 5780                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5781                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5782                        item_ids_by_kind
 5783                            .entry(serializable_item_handle.serialized_item_kind())
 5784                            .or_insert(Vec::new())
 5785                            .push(item.item_id().as_u64() as ItemId);
 5786                    }
 5787
 5788                    if let Some(project_path) = item.project_path(cx) {
 5789                        items_by_project_path.insert(project_path, item.clone());
 5790                    }
 5791                    all_deserialized_items.push(item);
 5792                }
 5793            })?;
 5794
 5795            let opened_items = paths_to_open
 5796                .into_iter()
 5797                .map(|path_to_open| {
 5798                    path_to_open
 5799                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5800                })
 5801                .collect::<Vec<_>>();
 5802
 5803            // Remove old panes from workspace panes list
 5804            workspace.update_in(cx, |workspace, window, cx| {
 5805                if let Some((center_group, active_pane)) = center_group {
 5806                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5807
 5808                    // Swap workspace center group
 5809                    workspace.center = PaneGroup::with_root(center_group);
 5810                    workspace.center.set_is_center(true);
 5811                    workspace.center.mark_positions(cx);
 5812
 5813                    if let Some(active_pane) = active_pane {
 5814                        workspace.set_active_pane(&active_pane, window, cx);
 5815                        cx.focus_self(window);
 5816                    } else {
 5817                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5818                    }
 5819                }
 5820
 5821                let docks = serialized_workspace.docks;
 5822
 5823                for (dock, serialized_dock) in [
 5824                    (&mut workspace.right_dock, docks.right),
 5825                    (&mut workspace.left_dock, docks.left),
 5826                    (&mut workspace.bottom_dock, docks.bottom),
 5827                ]
 5828                .iter_mut()
 5829                {
 5830                    dock.update(cx, |dock, cx| {
 5831                        dock.serialized_dock = Some(serialized_dock.clone());
 5832                        dock.restore_state(window, cx);
 5833                    });
 5834                }
 5835
 5836                cx.notify();
 5837            })?;
 5838
 5839            let _ = project
 5840                .update(cx, |project, cx| {
 5841                    project
 5842                        .breakpoint_store()
 5843                        .update(cx, |breakpoint_store, cx| {
 5844                            breakpoint_store
 5845                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5846                        })
 5847                })?
 5848                .await;
 5849
 5850            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5851            // after loading the items, we might have different items and in order to avoid
 5852            // the database filling up, we delete items that haven't been loaded now.
 5853            //
 5854            // The items that have been loaded, have been saved after they've been added to the workspace.
 5855            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5856                item_ids_by_kind
 5857                    .into_iter()
 5858                    .map(|(item_kind, loaded_items)| {
 5859                        SerializableItemRegistry::cleanup(
 5860                            item_kind,
 5861                            serialized_workspace.id,
 5862                            loaded_items,
 5863                            window,
 5864                            cx,
 5865                        )
 5866                        .log_err()
 5867                    })
 5868                    .collect::<Vec<_>>()
 5869            })?;
 5870
 5871            futures::future::join_all(clean_up_tasks).await;
 5872
 5873            workspace
 5874                .update_in(cx, |workspace, window, cx| {
 5875                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5876                    workspace.serialize_workspace_internal(window, cx).detach();
 5877
 5878                    // Ensure that we mark the window as edited if we did load dirty items
 5879                    workspace.update_window_edited(window, cx);
 5880                })
 5881                .ok();
 5882
 5883            Ok(opened_items)
 5884        })
 5885    }
 5886
 5887    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5888        self.add_workspace_actions_listeners(div, window, cx)
 5889            .on_action(cx.listener(
 5890                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5891                    for action in &action_sequence.0 {
 5892                        window.dispatch_action(action.boxed_clone(), cx);
 5893                    }
 5894                },
 5895            ))
 5896            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5897            .on_action(cx.listener(Self::close_all_items_and_panes))
 5898            .on_action(cx.listener(Self::save_all))
 5899            .on_action(cx.listener(Self::send_keystrokes))
 5900            .on_action(cx.listener(Self::add_folder_to_project))
 5901            .on_action(cx.listener(Self::follow_next_collaborator))
 5902            .on_action(cx.listener(Self::close_window))
 5903            .on_action(cx.listener(Self::activate_pane_at_index))
 5904            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5905            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5906            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5907            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5908                let pane = workspace.active_pane().clone();
 5909                workspace.unfollow_in_pane(&pane, window, cx);
 5910            }))
 5911            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5912                workspace
 5913                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5914                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5915            }))
 5916            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5917                workspace
 5918                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5919                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5920            }))
 5921            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5922                workspace
 5923                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5924                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5925            }))
 5926            .on_action(
 5927                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5928                    workspace.activate_previous_pane(window, cx)
 5929                }),
 5930            )
 5931            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5932                workspace.activate_next_pane(window, cx)
 5933            }))
 5934            .on_action(
 5935                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5936                    workspace.activate_next_window(cx)
 5937                }),
 5938            )
 5939            .on_action(
 5940                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5941                    workspace.activate_previous_window(cx)
 5942                }),
 5943            )
 5944            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5945                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5946            }))
 5947            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5948                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5949            }))
 5950            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5951                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5952            }))
 5953            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5954                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5955            }))
 5956            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5957                workspace.activate_next_pane(window, cx)
 5958            }))
 5959            .on_action(cx.listener(
 5960                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5961                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5962                },
 5963            ))
 5964            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5965                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5966            }))
 5967            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5968                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5969            }))
 5970            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5971                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5972            }))
 5973            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5974                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5975            }))
 5976            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5977                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5978                    SplitDirection::Down,
 5979                    SplitDirection::Up,
 5980                    SplitDirection::Right,
 5981                    SplitDirection::Left,
 5982                ];
 5983                for dir in DIRECTION_PRIORITY {
 5984                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 5985                        workspace.swap_pane_in_direction(dir, cx);
 5986                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 5987                        break;
 5988                    }
 5989                }
 5990            }))
 5991            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5992                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5993            }))
 5994            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5995                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5996            }))
 5997            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5998                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5999            }))
 6000            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6001                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6002            }))
 6003            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6004                this.toggle_dock(DockPosition::Left, window, cx);
 6005            }))
 6006            .on_action(cx.listener(
 6007                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6008                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6009                },
 6010            ))
 6011            .on_action(cx.listener(
 6012                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6013                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6014                },
 6015            ))
 6016            .on_action(cx.listener(
 6017                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6018                    if !workspace.close_active_dock(window, cx) {
 6019                        cx.propagate();
 6020                    }
 6021                },
 6022            ))
 6023            .on_action(
 6024                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6025                    workspace.close_all_docks(window, cx);
 6026                }),
 6027            )
 6028            .on_action(cx.listener(Self::toggle_all_docks))
 6029            .on_action(cx.listener(
 6030                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6031                    workspace.clear_all_notifications(cx);
 6032                },
 6033            ))
 6034            .on_action(cx.listener(
 6035                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6036                    workspace.clear_navigation_history(window, cx);
 6037                },
 6038            ))
 6039            .on_action(cx.listener(
 6040                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6041                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6042                        workspace.suppress_notification(&notification_id, cx);
 6043                    }
 6044                },
 6045            ))
 6046            .on_action(cx.listener(
 6047                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6048                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6049                },
 6050            ))
 6051            .on_action(
 6052                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6053                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6054                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6055                            trusted_worktrees.clear_trusted_paths()
 6056                        });
 6057                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6058                        cx.spawn(async move |_, cx| {
 6059                            if clear_task.await.log_err().is_some() {
 6060                                cx.update(|cx| reload(cx)).ok();
 6061                            }
 6062                        })
 6063                        .detach();
 6064                    }
 6065                }),
 6066            )
 6067            .on_action(cx.listener(
 6068                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6069                    workspace.reopen_closed_item(window, cx).detach();
 6070                },
 6071            ))
 6072            .on_action(cx.listener(
 6073                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6074                    for dock in workspace.all_docks() {
 6075                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6076                            let Some(panel) = dock.read(cx).active_panel() else {
 6077                                return;
 6078                            };
 6079
 6080                            // Set to `None`, then the size will fall back to the default.
 6081                            panel.clone().set_size(None, window, cx);
 6082
 6083                            return;
 6084                        }
 6085                    }
 6086                },
 6087            ))
 6088            .on_action(cx.listener(
 6089                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6090                    for dock in workspace.all_docks() {
 6091                        if let Some(panel) = dock.read(cx).visible_panel() {
 6092                            // Set to `None`, then the size will fall back to the default.
 6093                            panel.clone().set_size(None, window, cx);
 6094                        }
 6095                    }
 6096                },
 6097            ))
 6098            .on_action(cx.listener(
 6099                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6100                    adjust_active_dock_size_by_px(
 6101                        px_with_ui_font_fallback(act.px, cx),
 6102                        workspace,
 6103                        window,
 6104                        cx,
 6105                    );
 6106                },
 6107            ))
 6108            .on_action(cx.listener(
 6109                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6110                    adjust_active_dock_size_by_px(
 6111                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6112                        workspace,
 6113                        window,
 6114                        cx,
 6115                    );
 6116                },
 6117            ))
 6118            .on_action(cx.listener(
 6119                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6120                    adjust_open_docks_size_by_px(
 6121                        px_with_ui_font_fallback(act.px, cx),
 6122                        workspace,
 6123                        window,
 6124                        cx,
 6125                    );
 6126                },
 6127            ))
 6128            .on_action(cx.listener(
 6129                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6130                    adjust_open_docks_size_by_px(
 6131                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6132                        workspace,
 6133                        window,
 6134                        cx,
 6135                    );
 6136                },
 6137            ))
 6138            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6139            .on_action(cx.listener(
 6140                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6141                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6142                        let dock = active_dock.read(cx);
 6143                        if let Some(active_panel) = dock.active_panel() {
 6144                            if active_panel.pane(cx).is_none() {
 6145                                let mut recent_pane: Option<Entity<Pane>> = None;
 6146                                let mut recent_timestamp = 0;
 6147                                for pane_handle in workspace.panes() {
 6148                                    let pane = pane_handle.read(cx);
 6149                                    for entry in pane.activation_history() {
 6150                                        if entry.timestamp > recent_timestamp {
 6151                                            recent_timestamp = entry.timestamp;
 6152                                            recent_pane = Some(pane_handle.clone());
 6153                                        }
 6154                                    }
 6155                                }
 6156
 6157                                if let Some(pane) = recent_pane {
 6158                                    pane.update(cx, |pane, cx| {
 6159                                        let current_index = pane.active_item_index();
 6160                                        let items_len = pane.items_len();
 6161                                        if items_len > 0 {
 6162                                            let next_index = if current_index + 1 < items_len {
 6163                                                current_index + 1
 6164                                            } else {
 6165                                                0
 6166                                            };
 6167                                            pane.activate_item(
 6168                                                next_index, false, false, window, cx,
 6169                                            );
 6170                                        }
 6171                                    });
 6172                                    return;
 6173                                }
 6174                            }
 6175                        }
 6176                    }
 6177                    cx.propagate();
 6178                },
 6179            ))
 6180            .on_action(cx.listener(
 6181                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6182                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6183                        let dock = active_dock.read(cx);
 6184                        if let Some(active_panel) = dock.active_panel() {
 6185                            if active_panel.pane(cx).is_none() {
 6186                                let mut recent_pane: Option<Entity<Pane>> = None;
 6187                                let mut recent_timestamp = 0;
 6188                                for pane_handle in workspace.panes() {
 6189                                    let pane = pane_handle.read(cx);
 6190                                    for entry in pane.activation_history() {
 6191                                        if entry.timestamp > recent_timestamp {
 6192                                            recent_timestamp = entry.timestamp;
 6193                                            recent_pane = Some(pane_handle.clone());
 6194                                        }
 6195                                    }
 6196                                }
 6197
 6198                                if let Some(pane) = recent_pane {
 6199                                    pane.update(cx, |pane, cx| {
 6200                                        let current_index = pane.active_item_index();
 6201                                        let items_len = pane.items_len();
 6202                                        if items_len > 0 {
 6203                                            let prev_index = if current_index > 0 {
 6204                                                current_index - 1
 6205                                            } else {
 6206                                                items_len.saturating_sub(1)
 6207                                            };
 6208                                            pane.activate_item(
 6209                                                prev_index, false, false, window, cx,
 6210                                            );
 6211                                        }
 6212                                    });
 6213                                    return;
 6214                                }
 6215                            }
 6216                        }
 6217                    }
 6218                    cx.propagate();
 6219                },
 6220            ))
 6221            .on_action(cx.listener(Workspace::cancel))
 6222    }
 6223
 6224    #[cfg(any(test, feature = "test-support"))]
 6225    pub fn set_random_database_id(&mut self) {
 6226        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6227    }
 6228
 6229    #[cfg(any(test, feature = "test-support"))]
 6230    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6231        use node_runtime::NodeRuntime;
 6232        use session::Session;
 6233
 6234        let client = project.read(cx).client();
 6235        let user_store = project.read(cx).user_store();
 6236        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6237        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6238        window.activate_window();
 6239        let app_state = Arc::new(AppState {
 6240            languages: project.read(cx).languages().clone(),
 6241            workspace_store,
 6242            client,
 6243            user_store,
 6244            fs: project.read(cx).fs().clone(),
 6245            build_window_options: |_, _| Default::default(),
 6246            node_runtime: NodeRuntime::unavailable(),
 6247            session,
 6248        });
 6249        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6250        workspace
 6251            .active_pane
 6252            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6253        workspace
 6254    }
 6255
 6256    pub fn register_action<A: Action>(
 6257        &mut self,
 6258        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6259    ) -> &mut Self {
 6260        let callback = Arc::new(callback);
 6261
 6262        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6263            let callback = callback.clone();
 6264            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6265                (callback)(workspace, event, window, cx)
 6266            }))
 6267        }));
 6268        self
 6269    }
 6270    pub fn register_action_renderer(
 6271        &mut self,
 6272        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6273    ) -> &mut Self {
 6274        self.workspace_actions.push(Box::new(callback));
 6275        self
 6276    }
 6277
 6278    fn add_workspace_actions_listeners(
 6279        &self,
 6280        mut div: Div,
 6281        window: &mut Window,
 6282        cx: &mut Context<Self>,
 6283    ) -> Div {
 6284        for action in self.workspace_actions.iter() {
 6285            div = (action)(div, self, window, cx)
 6286        }
 6287        div
 6288    }
 6289
 6290    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6291        self.modal_layer.read(cx).has_active_modal()
 6292    }
 6293
 6294    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6295        self.modal_layer.read(cx).active_modal()
 6296    }
 6297
 6298    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6299    where
 6300        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6301    {
 6302        self.modal_layer.update(cx, |modal_layer, cx| {
 6303            modal_layer.toggle_modal(window, cx, build)
 6304        })
 6305    }
 6306
 6307    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6308        self.modal_layer
 6309            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6310    }
 6311
 6312    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6313        self.toast_layer
 6314            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6315    }
 6316
 6317    pub fn toggle_centered_layout(
 6318        &mut self,
 6319        _: &ToggleCenteredLayout,
 6320        _: &mut Window,
 6321        cx: &mut Context<Self>,
 6322    ) {
 6323        self.centered_layout = !self.centered_layout;
 6324        if let Some(database_id) = self.database_id() {
 6325            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6326                .detach_and_log_err(cx);
 6327        }
 6328        cx.notify();
 6329    }
 6330
 6331    fn adjust_padding(padding: Option<f32>) -> f32 {
 6332        padding
 6333            .unwrap_or(CenteredPaddingSettings::default().0)
 6334            .clamp(
 6335                CenteredPaddingSettings::MIN_PADDING,
 6336                CenteredPaddingSettings::MAX_PADDING,
 6337            )
 6338    }
 6339
 6340    fn render_dock(
 6341        &self,
 6342        position: DockPosition,
 6343        dock: &Entity<Dock>,
 6344        window: &mut Window,
 6345        cx: &mut App,
 6346    ) -> Option<Div> {
 6347        if self.zoomed_position == Some(position) {
 6348            return None;
 6349        }
 6350
 6351        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6352            let pane = panel.pane(cx)?;
 6353            let follower_states = &self.follower_states;
 6354            leader_border_for_pane(follower_states, &pane, window, cx)
 6355        });
 6356
 6357        Some(
 6358            div()
 6359                .flex()
 6360                .flex_none()
 6361                .overflow_hidden()
 6362                .child(dock.clone())
 6363                .children(leader_border),
 6364        )
 6365    }
 6366
 6367    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6368        window.root().flatten()
 6369    }
 6370
 6371    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6372        self.zoomed.as_ref()
 6373    }
 6374
 6375    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6376        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6377            return;
 6378        };
 6379        let windows = cx.windows();
 6380        let next_window =
 6381            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6382                || {
 6383                    windows
 6384                        .iter()
 6385                        .cycle()
 6386                        .skip_while(|window| window.window_id() != current_window_id)
 6387                        .nth(1)
 6388                },
 6389            );
 6390
 6391        if let Some(window) = next_window {
 6392            window
 6393                .update(cx, |_, window, _| window.activate_window())
 6394                .ok();
 6395        }
 6396    }
 6397
 6398    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6399        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6400            return;
 6401        };
 6402        let windows = cx.windows();
 6403        let prev_window =
 6404            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6405                || {
 6406                    windows
 6407                        .iter()
 6408                        .rev()
 6409                        .cycle()
 6410                        .skip_while(|window| window.window_id() != current_window_id)
 6411                        .nth(1)
 6412                },
 6413            );
 6414
 6415        if let Some(window) = prev_window {
 6416            window
 6417                .update(cx, |_, window, _| window.activate_window())
 6418                .ok();
 6419        }
 6420    }
 6421
 6422    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6423        if cx.stop_active_drag(window) {
 6424        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6425            dismiss_app_notification(&notification_id, cx);
 6426        } else {
 6427            cx.propagate();
 6428        }
 6429    }
 6430
 6431    fn adjust_dock_size_by_px(
 6432        &mut self,
 6433        panel_size: Pixels,
 6434        dock_pos: DockPosition,
 6435        px: Pixels,
 6436        window: &mut Window,
 6437        cx: &mut Context<Self>,
 6438    ) {
 6439        match dock_pos {
 6440            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6441            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6442            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6443        }
 6444    }
 6445
 6446    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6447        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6448
 6449        self.left_dock.update(cx, |left_dock, cx| {
 6450            if WorkspaceSettings::get_global(cx)
 6451                .resize_all_panels_in_dock
 6452                .contains(&DockPosition::Left)
 6453            {
 6454                left_dock.resize_all_panels(Some(size), window, cx);
 6455            } else {
 6456                left_dock.resize_active_panel(Some(size), window, cx);
 6457            }
 6458        });
 6459        self.clamp_utility_pane_widths(window, cx);
 6460    }
 6461
 6462    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6463        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6464        self.left_dock.read_with(cx, |left_dock, cx| {
 6465            let left_dock_size = left_dock
 6466                .active_panel_size(window, cx)
 6467                .unwrap_or(Pixels::ZERO);
 6468            if left_dock_size + size > self.bounds.right() {
 6469                size = self.bounds.right() - left_dock_size
 6470            }
 6471        });
 6472        self.right_dock.update(cx, |right_dock, cx| {
 6473            if WorkspaceSettings::get_global(cx)
 6474                .resize_all_panels_in_dock
 6475                .contains(&DockPosition::Right)
 6476            {
 6477                right_dock.resize_all_panels(Some(size), window, cx);
 6478            } else {
 6479                right_dock.resize_active_panel(Some(size), window, cx);
 6480            }
 6481        });
 6482        self.clamp_utility_pane_widths(window, cx);
 6483    }
 6484
 6485    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6486        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6487        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6488            if WorkspaceSettings::get_global(cx)
 6489                .resize_all_panels_in_dock
 6490                .contains(&DockPosition::Bottom)
 6491            {
 6492                bottom_dock.resize_all_panels(Some(size), window, cx);
 6493            } else {
 6494                bottom_dock.resize_active_panel(Some(size), window, cx);
 6495            }
 6496        });
 6497        self.clamp_utility_pane_widths(window, cx);
 6498    }
 6499
 6500    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6501        let left_dock_width = self
 6502            .left_dock
 6503            .read(cx)
 6504            .active_panel_size(window, cx)
 6505            .unwrap_or(px(0.0));
 6506        let right_dock_width = self
 6507            .right_dock
 6508            .read(cx)
 6509            .active_panel_size(window, cx)
 6510            .unwrap_or(px(0.0));
 6511        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6512        center_pane_width - px(10.0)
 6513    }
 6514
 6515    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6516        let max_width = self.max_utility_pane_width(window, cx);
 6517
 6518        // Clamp left slot utility pane if it exists
 6519        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6520            let current_width = handle.width(cx);
 6521            if current_width > max_width {
 6522                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6523            }
 6524        }
 6525
 6526        // Clamp right slot utility pane if it exists
 6527        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6528            let current_width = handle.width(cx);
 6529            if current_width > max_width {
 6530                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6531            }
 6532        }
 6533    }
 6534
 6535    fn toggle_edit_predictions_all_files(
 6536        &mut self,
 6537        _: &ToggleEditPrediction,
 6538        _window: &mut Window,
 6539        cx: &mut Context<Self>,
 6540    ) {
 6541        let fs = self.project().read(cx).fs().clone();
 6542        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6543        update_settings_file(fs, cx, move |file, _| {
 6544            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6545        });
 6546    }
 6547
 6548    pub fn show_worktree_trust_security_modal(
 6549        &mut self,
 6550        toggle: bool,
 6551        window: &mut Window,
 6552        cx: &mut Context<Self>,
 6553    ) {
 6554        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6555            if toggle {
 6556                security_modal.update(cx, |security_modal, cx| {
 6557                    security_modal.dismiss(cx);
 6558                })
 6559            } else {
 6560                security_modal.update(cx, |security_modal, cx| {
 6561                    security_modal.refresh_restricted_paths(cx);
 6562                });
 6563            }
 6564        } else {
 6565            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6566                .map(|trusted_worktrees| {
 6567                    trusted_worktrees
 6568                        .read(cx)
 6569                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6570                })
 6571                .unwrap_or(false);
 6572            if has_restricted_worktrees {
 6573                let project = self.project().read(cx);
 6574                let remote_host = project.remote_connection_options(cx);
 6575                let worktree_store = project.worktree_store().downgrade();
 6576                self.toggle_modal(window, cx, |_, cx| {
 6577                    SecurityModal::new(worktree_store, remote_host, cx)
 6578                });
 6579            }
 6580        }
 6581    }
 6582
 6583    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6584        self.update_window_title(window, cx);
 6585        self.serialize_workspace(window, cx);
 6586        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6587        self.update_history(cx);
 6588    }
 6589}
 6590
 6591fn leader_border_for_pane(
 6592    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6593    pane: &Entity<Pane>,
 6594    _: &Window,
 6595    cx: &App,
 6596) -> Option<Div> {
 6597    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6598        if state.pane() == pane {
 6599            Some((*leader_id, state))
 6600        } else {
 6601            None
 6602        }
 6603    })?;
 6604
 6605    let mut leader_color = match leader_id {
 6606        CollaboratorId::PeerId(leader_peer_id) => {
 6607            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6608            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6609
 6610            cx.theme()
 6611                .players()
 6612                .color_for_participant(leader.participant_index.0)
 6613                .cursor
 6614        }
 6615        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6616    };
 6617    leader_color.fade_out(0.3);
 6618    Some(
 6619        div()
 6620            .absolute()
 6621            .size_full()
 6622            .left_0()
 6623            .top_0()
 6624            .border_2()
 6625            .border_color(leader_color),
 6626    )
 6627}
 6628
 6629fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6630    ZED_WINDOW_POSITION
 6631        .zip(*ZED_WINDOW_SIZE)
 6632        .map(|(position, size)| Bounds {
 6633            origin: position,
 6634            size,
 6635        })
 6636}
 6637
 6638fn open_items(
 6639    serialized_workspace: Option<SerializedWorkspace>,
 6640    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6641    window: &mut Window,
 6642    cx: &mut Context<Workspace>,
 6643) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6644    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6645        Workspace::load_workspace(
 6646            serialized_workspace,
 6647            project_paths_to_open
 6648                .iter()
 6649                .map(|(_, project_path)| project_path)
 6650                .cloned()
 6651                .collect(),
 6652            window,
 6653            cx,
 6654        )
 6655    });
 6656
 6657    cx.spawn_in(window, async move |workspace, cx| {
 6658        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6659
 6660        if let Some(restored_items) = restored_items {
 6661            let restored_items = restored_items.await?;
 6662
 6663            let restored_project_paths = restored_items
 6664                .iter()
 6665                .filter_map(|item| {
 6666                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6667                        .ok()
 6668                        .flatten()
 6669                })
 6670                .collect::<HashSet<_>>();
 6671
 6672            for restored_item in restored_items {
 6673                opened_items.push(restored_item.map(Ok));
 6674            }
 6675
 6676            project_paths_to_open
 6677                .iter_mut()
 6678                .for_each(|(_, project_path)| {
 6679                    if let Some(project_path_to_open) = project_path
 6680                        && restored_project_paths.contains(project_path_to_open)
 6681                    {
 6682                        *project_path = None;
 6683                    }
 6684                });
 6685        } else {
 6686            for _ in 0..project_paths_to_open.len() {
 6687                opened_items.push(None);
 6688            }
 6689        }
 6690        assert!(opened_items.len() == project_paths_to_open.len());
 6691
 6692        let tasks =
 6693            project_paths_to_open
 6694                .into_iter()
 6695                .enumerate()
 6696                .map(|(ix, (abs_path, project_path))| {
 6697                    let workspace = workspace.clone();
 6698                    cx.spawn(async move |cx| {
 6699                        let file_project_path = project_path?;
 6700                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6701                            workspace.project().update(cx, |project, cx| {
 6702                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6703                            })
 6704                        });
 6705
 6706                        // We only want to open file paths here. If one of the items
 6707                        // here is a directory, it was already opened further above
 6708                        // with a `find_or_create_worktree`.
 6709                        if let Ok(task) = abs_path_task
 6710                            && task.await.is_none_or(|p| p.is_file())
 6711                        {
 6712                            return Some((
 6713                                ix,
 6714                                workspace
 6715                                    .update_in(cx, |workspace, window, cx| {
 6716                                        workspace.open_path(
 6717                                            file_project_path,
 6718                                            None,
 6719                                            true,
 6720                                            window,
 6721                                            cx,
 6722                                        )
 6723                                    })
 6724                                    .log_err()?
 6725                                    .await,
 6726                            ));
 6727                        }
 6728                        None
 6729                    })
 6730                });
 6731
 6732        let tasks = tasks.collect::<Vec<_>>();
 6733
 6734        let tasks = futures::future::join_all(tasks);
 6735        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6736            opened_items[ix] = Some(path_open_result);
 6737        }
 6738
 6739        Ok(opened_items)
 6740    })
 6741}
 6742
 6743enum ActivateInDirectionTarget {
 6744    Pane(Entity<Pane>),
 6745    Dock(Entity<Dock>),
 6746}
 6747
 6748fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6749    workspace
 6750        .update(cx, |workspace, _, cx| {
 6751            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6752                struct DatabaseFailedNotification;
 6753
 6754                workspace.show_notification(
 6755                    NotificationId::unique::<DatabaseFailedNotification>(),
 6756                    cx,
 6757                    |cx| {
 6758                        cx.new(|cx| {
 6759                            MessageNotification::new("Failed to load the database file.", cx)
 6760                                .primary_message("File an Issue")
 6761                                .primary_icon(IconName::Plus)
 6762                                .primary_on_click(|window, cx| {
 6763                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6764                                })
 6765                        })
 6766                    },
 6767                );
 6768            }
 6769        })
 6770        .log_err();
 6771}
 6772
 6773fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6774    if val == 0 {
 6775        ThemeSettings::get_global(cx).ui_font_size(cx)
 6776    } else {
 6777        px(val as f32)
 6778    }
 6779}
 6780
 6781fn adjust_active_dock_size_by_px(
 6782    px: Pixels,
 6783    workspace: &mut Workspace,
 6784    window: &mut Window,
 6785    cx: &mut Context<Workspace>,
 6786) {
 6787    let Some(active_dock) = workspace
 6788        .all_docks()
 6789        .into_iter()
 6790        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6791    else {
 6792        return;
 6793    };
 6794    let dock = active_dock.read(cx);
 6795    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6796        return;
 6797    };
 6798    let dock_pos = dock.position();
 6799    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6800}
 6801
 6802fn adjust_open_docks_size_by_px(
 6803    px: Pixels,
 6804    workspace: &mut Workspace,
 6805    window: &mut Window,
 6806    cx: &mut Context<Workspace>,
 6807) {
 6808    let docks = workspace
 6809        .all_docks()
 6810        .into_iter()
 6811        .filter_map(|dock| {
 6812            if dock.read(cx).is_open() {
 6813                let dock = dock.read(cx);
 6814                let panel_size = dock.active_panel_size(window, cx)?;
 6815                let dock_pos = dock.position();
 6816                Some((panel_size, dock_pos, px))
 6817            } else {
 6818                None
 6819            }
 6820        })
 6821        .collect::<Vec<_>>();
 6822
 6823    docks
 6824        .into_iter()
 6825        .for_each(|(panel_size, dock_pos, offset)| {
 6826            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6827        });
 6828}
 6829
 6830impl Focusable for Workspace {
 6831    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6832        self.active_pane.focus_handle(cx)
 6833    }
 6834}
 6835
 6836#[derive(Clone)]
 6837struct DraggedDock(DockPosition);
 6838
 6839impl Render for DraggedDock {
 6840    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6841        gpui::Empty
 6842    }
 6843}
 6844
 6845impl Render for Workspace {
 6846    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6847        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6848        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6849            log::info!("Rendered first frame");
 6850        }
 6851        let mut context = KeyContext::new_with_defaults();
 6852        context.add("Workspace");
 6853        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6854        if let Some(status) = self
 6855            .debugger_provider
 6856            .as_ref()
 6857            .and_then(|provider| provider.active_thread_state(cx))
 6858        {
 6859            match status {
 6860                ThreadStatus::Running | ThreadStatus::Stepping => {
 6861                    context.add("debugger_running");
 6862                }
 6863                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6864                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6865            }
 6866        }
 6867
 6868        if self.left_dock.read(cx).is_open() {
 6869            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6870                context.set("left_dock", active_panel.panel_key());
 6871            }
 6872        }
 6873
 6874        if self.right_dock.read(cx).is_open() {
 6875            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6876                context.set("right_dock", active_panel.panel_key());
 6877            }
 6878        }
 6879
 6880        if self.bottom_dock.read(cx).is_open() {
 6881            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6882                context.set("bottom_dock", active_panel.panel_key());
 6883            }
 6884        }
 6885
 6886        let centered_layout = self.centered_layout
 6887            && self.center.panes().len() == 1
 6888            && self.active_item(cx).is_some();
 6889        let render_padding = |size| {
 6890            (size > 0.0).then(|| {
 6891                div()
 6892                    .h_full()
 6893                    .w(relative(size))
 6894                    .bg(cx.theme().colors().editor_background)
 6895                    .border_color(cx.theme().colors().pane_group_border)
 6896            })
 6897        };
 6898        let paddings = if centered_layout {
 6899            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6900            (
 6901                render_padding(Self::adjust_padding(
 6902                    settings.left_padding.map(|padding| padding.0),
 6903                )),
 6904                render_padding(Self::adjust_padding(
 6905                    settings.right_padding.map(|padding| padding.0),
 6906                )),
 6907            )
 6908        } else {
 6909            (None, None)
 6910        };
 6911        let ui_font = theme::setup_ui_font(window, cx);
 6912
 6913        let theme = cx.theme().clone();
 6914        let colors = theme.colors();
 6915        let notification_entities = self
 6916            .notifications
 6917            .iter()
 6918            .map(|(_, notification)| notification.entity_id())
 6919            .collect::<Vec<_>>();
 6920        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6921
 6922        client_side_decorations(
 6923            self.actions(div(), window, cx)
 6924                .key_context(context)
 6925                .relative()
 6926                .size_full()
 6927                .flex()
 6928                .flex_col()
 6929                .font(ui_font)
 6930                .gap_0()
 6931                .justify_start()
 6932                .items_start()
 6933                .text_color(colors.text)
 6934                .overflow_hidden()
 6935                .children(self.titlebar_item.clone())
 6936                .on_modifiers_changed(move |_, _, cx| {
 6937                    for &id in &notification_entities {
 6938                        cx.notify(id);
 6939                    }
 6940                })
 6941                .child(
 6942                    div()
 6943                        .size_full()
 6944                        .relative()
 6945                        .flex_1()
 6946                        .flex()
 6947                        .flex_col()
 6948                        .child(
 6949                            div()
 6950                                .id("workspace")
 6951                                .bg(colors.background)
 6952                                .relative()
 6953                                .flex_1()
 6954                                .w_full()
 6955                                .flex()
 6956                                .flex_col()
 6957                                .overflow_hidden()
 6958                                .border_t_1()
 6959                                .border_b_1()
 6960                                .border_color(colors.border)
 6961                                .child({
 6962                                    let this = cx.entity();
 6963                                    canvas(
 6964                                        move |bounds, window, cx| {
 6965                                            this.update(cx, |this, cx| {
 6966                                                let bounds_changed = this.bounds != bounds;
 6967                                                this.bounds = bounds;
 6968
 6969                                                if bounds_changed {
 6970                                                    this.left_dock.update(cx, |dock, cx| {
 6971                                                        dock.clamp_panel_size(
 6972                                                            bounds.size.width,
 6973                                                            window,
 6974                                                            cx,
 6975                                                        )
 6976                                                    });
 6977
 6978                                                    this.right_dock.update(cx, |dock, cx| {
 6979                                                        dock.clamp_panel_size(
 6980                                                            bounds.size.width,
 6981                                                            window,
 6982                                                            cx,
 6983                                                        )
 6984                                                    });
 6985
 6986                                                    this.bottom_dock.update(cx, |dock, cx| {
 6987                                                        dock.clamp_panel_size(
 6988                                                            bounds.size.height,
 6989                                                            window,
 6990                                                            cx,
 6991                                                        )
 6992                                                    });
 6993                                                }
 6994                                            })
 6995                                        },
 6996                                        |_, _, _, _| {},
 6997                                    )
 6998                                    .absolute()
 6999                                    .size_full()
 7000                                })
 7001                                .when(self.zoomed.is_none(), |this| {
 7002                                    this.on_drag_move(cx.listener(
 7003                                        move |workspace,
 7004                                              e: &DragMoveEvent<DraggedDock>,
 7005                                              window,
 7006                                              cx| {
 7007                                            if workspace.previous_dock_drag_coordinates
 7008                                                != Some(e.event.position)
 7009                                            {
 7010                                                workspace.previous_dock_drag_coordinates =
 7011                                                    Some(e.event.position);
 7012                                                match e.drag(cx).0 {
 7013                                                    DockPosition::Left => {
 7014                                                        workspace.resize_left_dock(
 7015                                                            e.event.position.x
 7016                                                                - workspace.bounds.left(),
 7017                                                            window,
 7018                                                            cx,
 7019                                                        );
 7020                                                    }
 7021                                                    DockPosition::Right => {
 7022                                                        workspace.resize_right_dock(
 7023                                                            workspace.bounds.right()
 7024                                                                - e.event.position.x,
 7025                                                            window,
 7026                                                            cx,
 7027                                                        );
 7028                                                    }
 7029                                                    DockPosition::Bottom => {
 7030                                                        workspace.resize_bottom_dock(
 7031                                                            workspace.bounds.bottom()
 7032                                                                - e.event.position.y,
 7033                                                            window,
 7034                                                            cx,
 7035                                                        );
 7036                                                    }
 7037                                                };
 7038                                                workspace.serialize_workspace(window, cx);
 7039                                            }
 7040                                        },
 7041                                    ))
 7042                                    .on_drag_move(cx.listener(
 7043                                        move |workspace,
 7044                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7045                                              window,
 7046                                              cx| {
 7047                                            let slot = e.drag(cx).0;
 7048                                            match slot {
 7049                                                UtilityPaneSlot::Left => {
 7050                                                    let left_dock_width = workspace.left_dock.read(cx)
 7051                                                        .active_panel_size(window, cx)
 7052                                                        .unwrap_or(gpui::px(0.0));
 7053                                                    let new_width = e.event.position.x
 7054                                                        - workspace.bounds.left()
 7055                                                        - left_dock_width;
 7056                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7057                                                }
 7058                                                UtilityPaneSlot::Right => {
 7059                                                    let right_dock_width = workspace.right_dock.read(cx)
 7060                                                        .active_panel_size(window, cx)
 7061                                                        .unwrap_or(gpui::px(0.0));
 7062                                                    let new_width = workspace.bounds.right()
 7063                                                        - e.event.position.x
 7064                                                        - right_dock_width;
 7065                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7066                                                }
 7067                                            }
 7068                                        },
 7069                                    ))
 7070                                })
 7071                                .child({
 7072                                    match bottom_dock_layout {
 7073                                        BottomDockLayout::Full => div()
 7074                                            .flex()
 7075                                            .flex_col()
 7076                                            .h_full()
 7077                                            .child(
 7078                                                div()
 7079                                                    .flex()
 7080                                                    .flex_row()
 7081                                                    .flex_1()
 7082                                                    .overflow_hidden()
 7083                                                    .children(self.render_dock(
 7084                                                        DockPosition::Left,
 7085                                                        &self.left_dock,
 7086                                                        window,
 7087                                                        cx,
 7088                                                    ))
 7089                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7090                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7091                                                            this.when(pane.expanded(cx), |this| {
 7092                                                                this.child(
 7093                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7094                                                                )
 7095                                                            })
 7096                                                        })
 7097                                                    })
 7098                                                    .child(
 7099                                                        div()
 7100                                                            .flex()
 7101                                                            .flex_col()
 7102                                                            .flex_1()
 7103                                                            .overflow_hidden()
 7104                                                            .child(
 7105                                                                h_flex()
 7106                                                                    .flex_1()
 7107                                                                    .when_some(
 7108                                                                        paddings.0,
 7109                                                                        |this, p| {
 7110                                                                            this.child(
 7111                                                                                p.border_r_1(),
 7112                                                                            )
 7113                                                                        },
 7114                                                                    )
 7115                                                                    .child(self.center.render(
 7116                                                                        self.zoomed.as_ref(),
 7117                                                                        &PaneRenderContext {
 7118                                                                            follower_states:
 7119                                                                                &self.follower_states,
 7120                                                                            active_call: self.active_call(),
 7121                                                                            active_pane: &self.active_pane,
 7122                                                                            app_state: &self.app_state,
 7123                                                                            project: &self.project,
 7124                                                                            workspace: &self.weak_self,
 7125                                                                        },
 7126                                                                        window,
 7127                                                                        cx,
 7128                                                                    ))
 7129                                                                    .when_some(
 7130                                                                        paddings.1,
 7131                                                                        |this, p| {
 7132                                                                            this.child(
 7133                                                                                p.border_l_1(),
 7134                                                                            )
 7135                                                                        },
 7136                                                                    ),
 7137                                                            ),
 7138                                                    )
 7139                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7140                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7141                                                            this.when(pane.expanded(cx), |this| {
 7142                                                                this.child(
 7143                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7144                                                                )
 7145                                                            })
 7146                                                        })
 7147                                                    })
 7148                                                    .children(self.render_dock(
 7149                                                        DockPosition::Right,
 7150                                                        &self.right_dock,
 7151                                                        window,
 7152                                                        cx,
 7153                                                    )),
 7154                                            )
 7155                                            .child(div().w_full().children(self.render_dock(
 7156                                                DockPosition::Bottom,
 7157                                                &self.bottom_dock,
 7158                                                window,
 7159                                                cx
 7160                                            ))),
 7161
 7162                                        BottomDockLayout::LeftAligned => div()
 7163                                            .flex()
 7164                                            .flex_row()
 7165                                            .h_full()
 7166                                            .child(
 7167                                                div()
 7168                                                    .flex()
 7169                                                    .flex_col()
 7170                                                    .flex_1()
 7171                                                    .h_full()
 7172                                                    .child(
 7173                                                        div()
 7174                                                            .flex()
 7175                                                            .flex_row()
 7176                                                            .flex_1()
 7177                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7178                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7179                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7180                                                                    this.when(pane.expanded(cx), |this| {
 7181                                                                        this.child(
 7182                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7183                                                                        )
 7184                                                                    })
 7185                                                                })
 7186                                                            })
 7187                                                            .child(
 7188                                                                div()
 7189                                                                    .flex()
 7190                                                                    .flex_col()
 7191                                                                    .flex_1()
 7192                                                                    .overflow_hidden()
 7193                                                                    .child(
 7194                                                                        h_flex()
 7195                                                                            .flex_1()
 7196                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7197                                                                            .child(self.center.render(
 7198                                                                                self.zoomed.as_ref(),
 7199                                                                                &PaneRenderContext {
 7200                                                                                    follower_states:
 7201                                                                                        &self.follower_states,
 7202                                                                                    active_call: self.active_call(),
 7203                                                                                    active_pane: &self.active_pane,
 7204                                                                                    app_state: &self.app_state,
 7205                                                                                    project: &self.project,
 7206                                                                                    workspace: &self.weak_self,
 7207                                                                                },
 7208                                                                                window,
 7209                                                                                cx,
 7210                                                                            ))
 7211                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7212                                                                    )
 7213                                                            )
 7214                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7215                                                                this.when(pane.expanded(cx), |this| {
 7216                                                                    this.child(
 7217                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7218                                                                    )
 7219                                                                })
 7220                                                            })
 7221                                                    )
 7222                                                    .child(
 7223                                                        div()
 7224                                                            .w_full()
 7225                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7226                                                    ),
 7227                                            )
 7228                                            .children(self.render_dock(
 7229                                                DockPosition::Right,
 7230                                                &self.right_dock,
 7231                                                window,
 7232                                                cx,
 7233                                            )),
 7234
 7235                                        BottomDockLayout::RightAligned => div()
 7236                                            .flex()
 7237                                            .flex_row()
 7238                                            .h_full()
 7239                                            .children(self.render_dock(
 7240                                                DockPosition::Left,
 7241                                                &self.left_dock,
 7242                                                window,
 7243                                                cx,
 7244                                            ))
 7245                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7246                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7247                                                    this.when(pane.expanded(cx), |this| {
 7248                                                        this.child(
 7249                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7250                                                        )
 7251                                                    })
 7252                                                })
 7253                                            })
 7254                                            .child(
 7255                                                div()
 7256                                                    .flex()
 7257                                                    .flex_col()
 7258                                                    .flex_1()
 7259                                                    .h_full()
 7260                                                    .child(
 7261                                                        div()
 7262                                                            .flex()
 7263                                                            .flex_row()
 7264                                                            .flex_1()
 7265                                                            .child(
 7266                                                                div()
 7267                                                                    .flex()
 7268                                                                    .flex_col()
 7269                                                                    .flex_1()
 7270                                                                    .overflow_hidden()
 7271                                                                    .child(
 7272                                                                        h_flex()
 7273                                                                            .flex_1()
 7274                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7275                                                                            .child(self.center.render(
 7276                                                                                self.zoomed.as_ref(),
 7277                                                                                &PaneRenderContext {
 7278                                                                                    follower_states:
 7279                                                                                        &self.follower_states,
 7280                                                                                    active_call: self.active_call(),
 7281                                                                                    active_pane: &self.active_pane,
 7282                                                                                    app_state: &self.app_state,
 7283                                                                                    project: &self.project,
 7284                                                                                    workspace: &self.weak_self,
 7285                                                                                },
 7286                                                                                window,
 7287                                                                                cx,
 7288                                                                            ))
 7289                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7290                                                                    )
 7291                                                            )
 7292                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7293                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7294                                                                    this.when(pane.expanded(cx), |this| {
 7295                                                                        this.child(
 7296                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7297                                                                        )
 7298                                                                    })
 7299                                                                })
 7300                                                            })
 7301                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7302                                                    )
 7303                                                    .child(
 7304                                                        div()
 7305                                                            .w_full()
 7306                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7307                                                    ),
 7308                                            ),
 7309
 7310                                        BottomDockLayout::Contained => div()
 7311                                            .flex()
 7312                                            .flex_row()
 7313                                            .h_full()
 7314                                            .children(self.render_dock(
 7315                                                DockPosition::Left,
 7316                                                &self.left_dock,
 7317                                                window,
 7318                                                cx,
 7319                                            ))
 7320                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7321                                                this.when(pane.expanded(cx), |this| {
 7322                                                    this.child(
 7323                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7324                                                    )
 7325                                                })
 7326                                            })
 7327                                            .child(
 7328                                                div()
 7329                                                    .flex()
 7330                                                    .flex_col()
 7331                                                    .flex_1()
 7332                                                    .overflow_hidden()
 7333                                                    .child(
 7334                                                        h_flex()
 7335                                                            .flex_1()
 7336                                                            .when_some(paddings.0, |this, p| {
 7337                                                                this.child(p.border_r_1())
 7338                                                            })
 7339                                                            .child(self.center.render(
 7340                                                                self.zoomed.as_ref(),
 7341                                                                &PaneRenderContext {
 7342                                                                    follower_states:
 7343                                                                        &self.follower_states,
 7344                                                                    active_call: self.active_call(),
 7345                                                                    active_pane: &self.active_pane,
 7346                                                                    app_state: &self.app_state,
 7347                                                                    project: &self.project,
 7348                                                                    workspace: &self.weak_self,
 7349                                                                },
 7350                                                                window,
 7351                                                                cx,
 7352                                                            ))
 7353                                                            .when_some(paddings.1, |this, p| {
 7354                                                                this.child(p.border_l_1())
 7355                                                            }),
 7356                                                    )
 7357                                                    .children(self.render_dock(
 7358                                                        DockPosition::Bottom,
 7359                                                        &self.bottom_dock,
 7360                                                        window,
 7361                                                        cx,
 7362                                                    )),
 7363                                            )
 7364                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7365                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7366                                                    this.when(pane.expanded(cx), |this| {
 7367                                                        this.child(
 7368                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7369                                                        )
 7370                                                    })
 7371                                                })
 7372                                            })
 7373                                            .children(self.render_dock(
 7374                                                DockPosition::Right,
 7375                                                &self.right_dock,
 7376                                                window,
 7377                                                cx,
 7378                                            )),
 7379                                    }
 7380                                })
 7381                                .children(self.zoomed.as_ref().and_then(|view| {
 7382                                    let zoomed_view = view.upgrade()?;
 7383                                    let div = div()
 7384                                        .occlude()
 7385                                        .absolute()
 7386                                        .overflow_hidden()
 7387                                        .border_color(colors.border)
 7388                                        .bg(colors.background)
 7389                                        .child(zoomed_view)
 7390                                        .inset_0()
 7391                                        .shadow_lg();
 7392
 7393                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7394                                       return Some(div);
 7395                                    }
 7396
 7397                                    Some(match self.zoomed_position {
 7398                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7399                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7400                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7401                                        None => {
 7402                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7403                                        }
 7404                                    })
 7405                                }))
 7406                                .children(self.render_notifications(window, cx)),
 7407                        )
 7408                        .when(self.status_bar_visible(cx), |parent| {
 7409                            parent.child(self.status_bar.clone())
 7410                        })
 7411                        .child(self.modal_layer.clone())
 7412                        .child(self.toast_layer.clone()),
 7413                ),
 7414            window,
 7415            cx,
 7416        )
 7417    }
 7418}
 7419
 7420impl WorkspaceStore {
 7421    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7422        Self {
 7423            workspaces: Default::default(),
 7424            _subscriptions: vec![
 7425                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7426                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7427            ],
 7428            client,
 7429        }
 7430    }
 7431
 7432    pub fn update_followers(
 7433        &self,
 7434        project_id: Option<u64>,
 7435        update: proto::update_followers::Variant,
 7436        cx: &App,
 7437    ) -> Option<()> {
 7438        let active_call = ActiveCall::try_global(cx)?;
 7439        let room_id = active_call.read(cx).room()?.read(cx).id();
 7440        self.client
 7441            .send(proto::UpdateFollowers {
 7442                room_id,
 7443                project_id,
 7444                variant: Some(update),
 7445            })
 7446            .log_err()
 7447    }
 7448
 7449    pub async fn handle_follow(
 7450        this: Entity<Self>,
 7451        envelope: TypedEnvelope<proto::Follow>,
 7452        mut cx: AsyncApp,
 7453    ) -> Result<proto::FollowResponse> {
 7454        this.update(&mut cx, |this, cx| {
 7455            let follower = Follower {
 7456                project_id: envelope.payload.project_id,
 7457                peer_id: envelope.original_sender_id()?,
 7458            };
 7459
 7460            let mut response = proto::FollowResponse::default();
 7461            this.workspaces.retain(|workspace| {
 7462                workspace
 7463                    .update(cx, |workspace, window, cx| {
 7464                        let handler_response =
 7465                            workspace.handle_follow(follower.project_id, window, cx);
 7466                        if let Some(active_view) = handler_response.active_view
 7467                            && workspace.project.read(cx).remote_id() == follower.project_id
 7468                        {
 7469                            response.active_view = Some(active_view)
 7470                        }
 7471                    })
 7472                    .is_ok()
 7473            });
 7474
 7475            Ok(response)
 7476        })?
 7477    }
 7478
 7479    async fn handle_update_followers(
 7480        this: Entity<Self>,
 7481        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7482        mut cx: AsyncApp,
 7483    ) -> Result<()> {
 7484        let leader_id = envelope.original_sender_id()?;
 7485        let update = envelope.payload;
 7486
 7487        this.update(&mut cx, |this, cx| {
 7488            this.workspaces.retain(|workspace| {
 7489                workspace
 7490                    .update(cx, |workspace, window, cx| {
 7491                        let project_id = workspace.project.read(cx).remote_id();
 7492                        if update.project_id != project_id && update.project_id.is_some() {
 7493                            return;
 7494                        }
 7495                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7496                    })
 7497                    .is_ok()
 7498            });
 7499            Ok(())
 7500        })?
 7501    }
 7502
 7503    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7504        &self.workspaces
 7505    }
 7506}
 7507
 7508impl ViewId {
 7509    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7510        Ok(Self {
 7511            creator: message
 7512                .creator
 7513                .map(CollaboratorId::PeerId)
 7514                .context("creator is missing")?,
 7515            id: message.id,
 7516        })
 7517    }
 7518
 7519    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7520        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7521            Some(proto::ViewId {
 7522                creator: Some(peer_id),
 7523                id: self.id,
 7524            })
 7525        } else {
 7526            None
 7527        }
 7528    }
 7529}
 7530
 7531impl FollowerState {
 7532    fn pane(&self) -> &Entity<Pane> {
 7533        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7534    }
 7535}
 7536
 7537pub trait WorkspaceHandle {
 7538    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7539}
 7540
 7541impl WorkspaceHandle for Entity<Workspace> {
 7542    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7543        self.read(cx)
 7544            .worktrees(cx)
 7545            .flat_map(|worktree| {
 7546                let worktree_id = worktree.read(cx).id();
 7547                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7548                    worktree_id,
 7549                    path: f.path.clone(),
 7550                })
 7551            })
 7552            .collect::<Vec<_>>()
 7553    }
 7554}
 7555
 7556pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7557    DB.last_workspace().await.log_err().flatten()
 7558}
 7559
 7560pub fn last_session_workspace_locations(
 7561    last_session_id: &str,
 7562    last_session_window_stack: Option<Vec<WindowId>>,
 7563) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7564    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7565        .log_err()
 7566}
 7567
 7568actions!(
 7569    collab,
 7570    [
 7571        /// Opens the channel notes for the current call.
 7572        ///
 7573        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7574        /// channel in the collab panel.
 7575        ///
 7576        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7577        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7578        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7579        OpenChannelNotes,
 7580        /// Mutes your microphone.
 7581        Mute,
 7582        /// Deafens yourself (mute both microphone and speakers).
 7583        Deafen,
 7584        /// Leaves the current call.
 7585        LeaveCall,
 7586        /// Shares the current project with collaborators.
 7587        ShareProject,
 7588        /// Shares your screen with collaborators.
 7589        ScreenShare,
 7590        /// Copies the current room name and session id for debugging purposes.
 7591        CopyRoomId,
 7592    ]
 7593);
 7594actions!(
 7595    zed,
 7596    [
 7597        /// Opens the Zed log file.
 7598        OpenLog,
 7599        /// Reveals the Zed log file in the system file manager.
 7600        RevealLogInFileManager
 7601    ]
 7602);
 7603
 7604async fn join_channel_internal(
 7605    channel_id: ChannelId,
 7606    app_state: &Arc<AppState>,
 7607    requesting_window: Option<WindowHandle<Workspace>>,
 7608    active_call: &Entity<ActiveCall>,
 7609    cx: &mut AsyncApp,
 7610) -> Result<bool> {
 7611    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7612        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7613            return (false, None);
 7614        };
 7615
 7616        let already_in_channel = room.channel_id() == Some(channel_id);
 7617        let should_prompt = room.is_sharing_project()
 7618            && !room.remote_participants().is_empty()
 7619            && !already_in_channel;
 7620        let open_room = if already_in_channel {
 7621            active_call.room().cloned()
 7622        } else {
 7623            None
 7624        };
 7625        (should_prompt, open_room)
 7626    })?;
 7627
 7628    if let Some(room) = open_room {
 7629        let task = room.update(cx, |room, cx| {
 7630            if let Some((project, host)) = room.most_active_project(cx) {
 7631                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7632            }
 7633
 7634            None
 7635        })?;
 7636        if let Some(task) = task {
 7637            task.await?;
 7638        }
 7639        return anyhow::Ok(true);
 7640    }
 7641
 7642    if should_prompt {
 7643        if let Some(workspace) = requesting_window {
 7644            let answer = workspace
 7645                .update(cx, |_, window, cx| {
 7646                    window.prompt(
 7647                        PromptLevel::Warning,
 7648                        "Do you want to switch channels?",
 7649                        Some("Leaving this call will unshare your current project."),
 7650                        &["Yes, Join Channel", "Cancel"],
 7651                        cx,
 7652                    )
 7653                })?
 7654                .await;
 7655
 7656            if answer == Ok(1) {
 7657                return Ok(false);
 7658            }
 7659        } else {
 7660            return Ok(false); // unreachable!() hopefully
 7661        }
 7662    }
 7663
 7664    let client = cx.update(|cx| active_call.read(cx).client())?;
 7665
 7666    let mut client_status = client.status();
 7667
 7668    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7669    'outer: loop {
 7670        let Some(status) = client_status.recv().await else {
 7671            anyhow::bail!("error connecting");
 7672        };
 7673
 7674        match status {
 7675            Status::Connecting
 7676            | Status::Authenticating
 7677            | Status::Authenticated
 7678            | Status::Reconnecting
 7679            | Status::Reauthenticating
 7680            | Status::Reauthenticated => continue,
 7681            Status::Connected { .. } => break 'outer,
 7682            Status::SignedOut | Status::AuthenticationError => {
 7683                return Err(ErrorCode::SignedOut.into());
 7684            }
 7685            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7686            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7687                return Err(ErrorCode::Disconnected.into());
 7688            }
 7689        }
 7690    }
 7691
 7692    let room = active_call
 7693        .update(cx, |active_call, cx| {
 7694            active_call.join_channel(channel_id, cx)
 7695        })?
 7696        .await?;
 7697
 7698    let Some(room) = room else {
 7699        return anyhow::Ok(true);
 7700    };
 7701
 7702    room.update(cx, |room, _| room.room_update_completed())?
 7703        .await;
 7704
 7705    let task = room.update(cx, |room, cx| {
 7706        if let Some((project, host)) = room.most_active_project(cx) {
 7707            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7708        }
 7709
 7710        // If you are the first to join a channel, see if you should share your project.
 7711        if room.remote_participants().is_empty()
 7712            && !room.local_participant_is_guest()
 7713            && let Some(workspace) = requesting_window
 7714        {
 7715            let project = workspace.update(cx, |workspace, _, cx| {
 7716                let project = workspace.project.read(cx);
 7717
 7718                if !CallSettings::get_global(cx).share_on_join {
 7719                    return None;
 7720                }
 7721
 7722                if (project.is_local() || project.is_via_remote_server())
 7723                    && project.visible_worktrees(cx).any(|tree| {
 7724                        tree.read(cx)
 7725                            .root_entry()
 7726                            .is_some_and(|entry| entry.is_dir())
 7727                    })
 7728                {
 7729                    Some(workspace.project.clone())
 7730                } else {
 7731                    None
 7732                }
 7733            });
 7734            if let Ok(Some(project)) = project {
 7735                return Some(cx.spawn(async move |room, cx| {
 7736                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7737                        .await?;
 7738                    Ok(())
 7739                }));
 7740            }
 7741        }
 7742
 7743        None
 7744    })?;
 7745    if let Some(task) = task {
 7746        task.await?;
 7747        return anyhow::Ok(true);
 7748    }
 7749    anyhow::Ok(false)
 7750}
 7751
 7752pub fn join_channel(
 7753    channel_id: ChannelId,
 7754    app_state: Arc<AppState>,
 7755    requesting_window: Option<WindowHandle<Workspace>>,
 7756    cx: &mut App,
 7757) -> Task<Result<()>> {
 7758    let active_call = ActiveCall::global(cx);
 7759    cx.spawn(async move |cx| {
 7760        let result =
 7761            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7762                .await;
 7763
 7764        // join channel succeeded, and opened a window
 7765        if matches!(result, Ok(true)) {
 7766            return anyhow::Ok(());
 7767        }
 7768
 7769        // find an existing workspace to focus and show call controls
 7770        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7771        if active_window.is_none() {
 7772            // no open workspaces, make one to show the error in (blergh)
 7773            let (window_handle, _) = cx
 7774                .update(|cx| {
 7775                    Workspace::new_local(
 7776                        vec![],
 7777                        app_state.clone(),
 7778                        requesting_window,
 7779                        None,
 7780                        None,
 7781                        cx,
 7782                    )
 7783                })?
 7784                .await?;
 7785
 7786            if result.is_ok() {
 7787                cx.update(|cx| {
 7788                    cx.dispatch_action(&OpenChannelNotes);
 7789                })
 7790                .log_err();
 7791            }
 7792
 7793            active_window = Some(window_handle);
 7794        }
 7795
 7796        if let Err(err) = result {
 7797            log::error!("failed to join channel: {}", err);
 7798            if let Some(active_window) = active_window {
 7799                active_window
 7800                    .update(cx, |_, window, cx| {
 7801                        let detail: SharedString = match err.error_code() {
 7802                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7803                            ErrorCode::UpgradeRequired => concat!(
 7804                                "Your are running an unsupported version of Zed. ",
 7805                                "Please update to continue."
 7806                            )
 7807                            .into(),
 7808                            ErrorCode::NoSuchChannel => concat!(
 7809                                "No matching channel was found. ",
 7810                                "Please check the link and try again."
 7811                            )
 7812                            .into(),
 7813                            ErrorCode::Forbidden => concat!(
 7814                                "This channel is private, and you do not have access. ",
 7815                                "Please ask someone to add you and try again."
 7816                            )
 7817                            .into(),
 7818                            ErrorCode::Disconnected => {
 7819                                "Please check your internet connection and try again.".into()
 7820                            }
 7821                            _ => format!("{}\n\nPlease try again.", err).into(),
 7822                        };
 7823                        window.prompt(
 7824                            PromptLevel::Critical,
 7825                            "Failed to join channel",
 7826                            Some(&detail),
 7827                            &["Ok"],
 7828                            cx,
 7829                        )
 7830                    })?
 7831                    .await
 7832                    .ok();
 7833            }
 7834        }
 7835
 7836        // return ok, we showed the error to the user.
 7837        anyhow::Ok(())
 7838    })
 7839}
 7840
 7841pub async fn get_any_active_workspace(
 7842    app_state: Arc<AppState>,
 7843    mut cx: AsyncApp,
 7844) -> anyhow::Result<WindowHandle<Workspace>> {
 7845    // find an existing workspace to focus and show call controls
 7846    let active_window = activate_any_workspace_window(&mut cx);
 7847    if active_window.is_none() {
 7848        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7849            .await?;
 7850    }
 7851    activate_any_workspace_window(&mut cx).context("could not open zed")
 7852}
 7853
 7854fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7855    cx.update(|cx| {
 7856        if let Some(workspace_window) = cx
 7857            .active_window()
 7858            .and_then(|window| window.downcast::<Workspace>())
 7859        {
 7860            return Some(workspace_window);
 7861        }
 7862
 7863        for window in cx.windows() {
 7864            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7865                workspace_window
 7866                    .update(cx, |_, window, _| window.activate_window())
 7867                    .ok();
 7868                return Some(workspace_window);
 7869            }
 7870        }
 7871        None
 7872    })
 7873    .ok()
 7874    .flatten()
 7875}
 7876
 7877pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7878    cx.windows()
 7879        .into_iter()
 7880        .filter_map(|window| window.downcast::<Workspace>())
 7881        .filter(|workspace| {
 7882            workspace
 7883                .read(cx)
 7884                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7885        })
 7886        .collect()
 7887}
 7888
 7889#[derive(Default)]
 7890pub struct OpenOptions {
 7891    pub visible: Option<OpenVisible>,
 7892    pub focus: Option<bool>,
 7893    pub open_new_workspace: Option<bool>,
 7894    pub prefer_focused_window: bool,
 7895    pub replace_window: Option<WindowHandle<Workspace>>,
 7896    pub env: Option<HashMap<String, String>>,
 7897}
 7898
 7899#[allow(clippy::type_complexity)]
 7900pub fn open_paths(
 7901    abs_paths: &[PathBuf],
 7902    app_state: Arc<AppState>,
 7903    open_options: OpenOptions,
 7904    cx: &mut App,
 7905) -> Task<
 7906    anyhow::Result<(
 7907        WindowHandle<Workspace>,
 7908        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7909    )>,
 7910> {
 7911    let abs_paths = abs_paths.to_vec();
 7912    let mut existing = None;
 7913    let mut best_match = None;
 7914    let mut open_visible = OpenVisible::All;
 7915    #[cfg(target_os = "windows")]
 7916    let wsl_path = abs_paths
 7917        .iter()
 7918        .find_map(|p| util::paths::WslPath::from_path(p));
 7919
 7920    cx.spawn(async move |cx| {
 7921        if open_options.open_new_workspace != Some(true) {
 7922            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7923            let all_metadatas = futures::future::join_all(all_paths)
 7924                .await
 7925                .into_iter()
 7926                .filter_map(|result| result.ok().flatten())
 7927                .collect::<Vec<_>>();
 7928
 7929            cx.update(|cx| {
 7930                for window in local_workspace_windows(cx) {
 7931                    if let Ok(workspace) = window.read(cx) {
 7932                        let m = workspace.project.read(cx).visibility_for_paths(
 7933                            &abs_paths,
 7934                            &all_metadatas,
 7935                            open_options.open_new_workspace == None,
 7936                            cx,
 7937                        );
 7938                        if m > best_match {
 7939                            existing = Some(window);
 7940                            best_match = m;
 7941                        } else if best_match.is_none()
 7942                            && open_options.open_new_workspace == Some(false)
 7943                        {
 7944                            existing = Some(window)
 7945                        }
 7946                    }
 7947                }
 7948            })?;
 7949
 7950            if open_options.open_new_workspace.is_none()
 7951                && (existing.is_none() || open_options.prefer_focused_window)
 7952                && all_metadatas.iter().all(|file| !file.is_dir)
 7953            {
 7954                cx.update(|cx| {
 7955                    if let Some(window) = cx
 7956                        .active_window()
 7957                        .and_then(|window| window.downcast::<Workspace>())
 7958                        && let Ok(workspace) = window.read(cx)
 7959                    {
 7960                        let project = workspace.project().read(cx);
 7961                        if project.is_local() && !project.is_via_collab() {
 7962                            existing = Some(window);
 7963                            open_visible = OpenVisible::None;
 7964                            return;
 7965                        }
 7966                    }
 7967                    for window in local_workspace_windows(cx) {
 7968                        if let Ok(workspace) = window.read(cx) {
 7969                            let project = workspace.project().read(cx);
 7970                            if project.is_via_collab() {
 7971                                continue;
 7972                            }
 7973                            existing = Some(window);
 7974                            open_visible = OpenVisible::None;
 7975                            break;
 7976                        }
 7977                    }
 7978                })?;
 7979            }
 7980        }
 7981
 7982        let result = if let Some(existing) = existing {
 7983            let open_task = existing
 7984                .update(cx, |workspace, window, cx| {
 7985                    window.activate_window();
 7986                    workspace.open_paths(
 7987                        abs_paths,
 7988                        OpenOptions {
 7989                            visible: Some(open_visible),
 7990                            ..Default::default()
 7991                        },
 7992                        None,
 7993                        window,
 7994                        cx,
 7995                    )
 7996                })?
 7997                .await;
 7998
 7999            _ = existing.update(cx, |workspace, _, cx| {
 8000                for item in open_task.iter().flatten() {
 8001                    if let Err(e) = item {
 8002                        workspace.show_error(&e, cx);
 8003                    }
 8004                }
 8005            });
 8006
 8007            Ok((existing, open_task))
 8008        } else {
 8009            cx.update(move |cx| {
 8010                Workspace::new_local(
 8011                    abs_paths,
 8012                    app_state.clone(),
 8013                    open_options.replace_window,
 8014                    open_options.env,
 8015                    None,
 8016                    cx,
 8017                )
 8018            })?
 8019            .await
 8020        };
 8021
 8022        #[cfg(target_os = "windows")]
 8023        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8024            && let Ok((workspace, _)) = &result
 8025        {
 8026            workspace
 8027                .update(cx, move |workspace, _window, cx| {
 8028                    struct OpenInWsl;
 8029                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8030                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8031                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8032                        cx.new(move |cx| {
 8033                            MessageNotification::new(msg, cx)
 8034                                .primary_message("Open in WSL")
 8035                                .primary_icon(IconName::FolderOpen)
 8036                                .primary_on_click(move |window, cx| {
 8037                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8038                                            distro: remote::WslConnectionOptions {
 8039                                                    distro_name: distro.clone(),
 8040                                                user: None,
 8041                                            },
 8042                                            paths: vec![path.clone().into()],
 8043                                        }), cx)
 8044                                })
 8045                        })
 8046                    });
 8047                })
 8048                .unwrap();
 8049        };
 8050        result
 8051    })
 8052}
 8053
 8054pub fn open_new(
 8055    open_options: OpenOptions,
 8056    app_state: Arc<AppState>,
 8057    cx: &mut App,
 8058    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8059) -> Task<anyhow::Result<()>> {
 8060    let task = Workspace::new_local(
 8061        Vec::new(),
 8062        app_state,
 8063        None,
 8064        open_options.env,
 8065        Some(Box::new(init)),
 8066        cx,
 8067    );
 8068    cx.spawn(async move |_cx| {
 8069        let (_workspace, _opened_paths) = task.await?;
 8070        // Init callback is called synchronously during workspace creation
 8071        Ok(())
 8072    })
 8073}
 8074
 8075pub fn create_and_open_local_file(
 8076    path: &'static Path,
 8077    window: &mut Window,
 8078    cx: &mut Context<Workspace>,
 8079    default_content: impl 'static + Send + FnOnce() -> Rope,
 8080) -> Task<Result<Box<dyn ItemHandle>>> {
 8081    cx.spawn_in(window, async move |workspace, cx| {
 8082        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8083        if !fs.is_file(path).await {
 8084            fs.create_file(path, Default::default()).await?;
 8085            fs.save(path, &default_content(), Default::default())
 8086                .await?;
 8087        }
 8088
 8089        let mut items = workspace
 8090            .update_in(cx, |workspace, window, cx| {
 8091                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8092                    workspace.open_paths(
 8093                        vec![path.to_path_buf()],
 8094                        OpenOptions {
 8095                            visible: Some(OpenVisible::None),
 8096                            ..Default::default()
 8097                        },
 8098                        None,
 8099                        window,
 8100                        cx,
 8101                    )
 8102                })
 8103            })?
 8104            .await?
 8105            .await;
 8106
 8107        let item = items.pop().flatten();
 8108        item.with_context(|| format!("path {path:?} is not a file"))?
 8109    })
 8110}
 8111
 8112pub fn open_remote_project_with_new_connection(
 8113    window: WindowHandle<Workspace>,
 8114    remote_connection: Arc<dyn RemoteConnection>,
 8115    cancel_rx: oneshot::Receiver<()>,
 8116    delegate: Arc<dyn RemoteClientDelegate>,
 8117    app_state: Arc<AppState>,
 8118    paths: Vec<PathBuf>,
 8119    cx: &mut App,
 8120) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8121    cx.spawn(async move |cx| {
 8122        let (workspace_id, serialized_workspace) =
 8123            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8124                .await?;
 8125
 8126        let session = match cx
 8127            .update(|cx| {
 8128                remote::RemoteClient::new(
 8129                    ConnectionIdentifier::Workspace(workspace_id.0),
 8130                    remote_connection,
 8131                    cancel_rx,
 8132                    delegate,
 8133                    cx,
 8134                )
 8135            })?
 8136            .await?
 8137        {
 8138            Some(result) => result,
 8139            None => return Ok(Vec::new()),
 8140        };
 8141
 8142        let project = cx.update(|cx| {
 8143            project::Project::remote(
 8144                session,
 8145                app_state.client.clone(),
 8146                app_state.node_runtime.clone(),
 8147                app_state.user_store.clone(),
 8148                app_state.languages.clone(),
 8149                app_state.fs.clone(),
 8150                true,
 8151                cx,
 8152            )
 8153        })?;
 8154
 8155        open_remote_project_inner(
 8156            project,
 8157            paths,
 8158            workspace_id,
 8159            serialized_workspace,
 8160            app_state,
 8161            window,
 8162            cx,
 8163        )
 8164        .await
 8165    })
 8166}
 8167
 8168pub fn open_remote_project_with_existing_connection(
 8169    connection_options: RemoteConnectionOptions,
 8170    project: Entity<Project>,
 8171    paths: Vec<PathBuf>,
 8172    app_state: Arc<AppState>,
 8173    window: WindowHandle<Workspace>,
 8174    cx: &mut AsyncApp,
 8175) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8176    cx.spawn(async move |cx| {
 8177        let (workspace_id, serialized_workspace) =
 8178            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8179
 8180        open_remote_project_inner(
 8181            project,
 8182            paths,
 8183            workspace_id,
 8184            serialized_workspace,
 8185            app_state,
 8186            window,
 8187            cx,
 8188        )
 8189        .await
 8190    })
 8191}
 8192
 8193async fn open_remote_project_inner(
 8194    project: Entity<Project>,
 8195    paths: Vec<PathBuf>,
 8196    workspace_id: WorkspaceId,
 8197    serialized_workspace: Option<SerializedWorkspace>,
 8198    app_state: Arc<AppState>,
 8199    window: WindowHandle<Workspace>,
 8200    cx: &mut AsyncApp,
 8201) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8202    let toolchains = DB.toolchains(workspace_id).await?;
 8203    for (toolchain, worktree_id, path) in toolchains {
 8204        project
 8205            .update(cx, |this, cx| {
 8206                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8207            })?
 8208            .await;
 8209    }
 8210    let mut project_paths_to_open = vec![];
 8211    let mut project_path_errors = vec![];
 8212
 8213    for path in paths {
 8214        let result = cx
 8215            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8216            .await;
 8217        match result {
 8218            Ok((_, project_path)) => {
 8219                project_paths_to_open.push((path.clone(), Some(project_path)));
 8220            }
 8221            Err(error) => {
 8222                project_path_errors.push(error);
 8223            }
 8224        };
 8225    }
 8226
 8227    if project_paths_to_open.is_empty() {
 8228        return Err(project_path_errors.pop().context("no paths given")?);
 8229    }
 8230
 8231    if let Some(detach_session_task) = window
 8232        .update(cx, |_workspace, window, cx| {
 8233            cx.spawn_in(window, async move |this, cx| {
 8234                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8235            })
 8236        })
 8237        .ok()
 8238    {
 8239        detach_session_task.await.ok();
 8240    }
 8241
 8242    cx.update_window(window.into(), |_, window, cx| {
 8243        window.replace_root(cx, |window, cx| {
 8244            telemetry::event!("SSH Project Opened");
 8245
 8246            let mut workspace =
 8247                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8248            workspace.update_history(cx);
 8249
 8250            if let Some(ref serialized) = serialized_workspace {
 8251                workspace.centered_layout = serialized.centered_layout;
 8252            }
 8253
 8254            workspace
 8255        });
 8256    })?;
 8257
 8258    let items = window
 8259        .update(cx, |_, window, cx| {
 8260            window.activate_window();
 8261            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8262        })?
 8263        .await?;
 8264
 8265    window.update(cx, |workspace, _, cx| {
 8266        for error in project_path_errors {
 8267            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8268                if let Some(path) = error.error_tag("path") {
 8269                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8270                }
 8271            } else {
 8272                workspace.show_error(&error, cx)
 8273            }
 8274        }
 8275    })?;
 8276
 8277    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8278}
 8279
 8280fn deserialize_remote_project(
 8281    connection_options: RemoteConnectionOptions,
 8282    paths: Vec<PathBuf>,
 8283    cx: &AsyncApp,
 8284) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8285    cx.background_spawn(async move {
 8286        let remote_connection_id = persistence::DB
 8287            .get_or_create_remote_connection(connection_options)
 8288            .await?;
 8289
 8290        let serialized_workspace =
 8291            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8292
 8293        let workspace_id = if let Some(workspace_id) =
 8294            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8295        {
 8296            workspace_id
 8297        } else {
 8298            persistence::DB.next_id().await?
 8299        };
 8300
 8301        Ok((workspace_id, serialized_workspace))
 8302    })
 8303}
 8304
 8305pub fn join_in_room_project(
 8306    project_id: u64,
 8307    follow_user_id: u64,
 8308    app_state: Arc<AppState>,
 8309    cx: &mut App,
 8310) -> Task<Result<()>> {
 8311    let windows = cx.windows();
 8312    cx.spawn(async move |cx| {
 8313        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8314            window_handle
 8315                .downcast::<Workspace>()
 8316                .and_then(|window_handle| {
 8317                    window_handle
 8318                        .update(cx, |workspace, _window, cx| {
 8319                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8320                                Some(window_handle)
 8321                            } else {
 8322                                None
 8323                            }
 8324                        })
 8325                        .unwrap_or(None)
 8326                })
 8327        });
 8328
 8329        let workspace = if let Some(existing_workspace) = existing_workspace {
 8330            existing_workspace
 8331        } else {
 8332            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8333            let room = active_call
 8334                .read_with(cx, |call, _| call.room().cloned())?
 8335                .context("not in a call")?;
 8336            let project = room
 8337                .update(cx, |room, cx| {
 8338                    room.join_project(
 8339                        project_id,
 8340                        app_state.languages.clone(),
 8341                        app_state.fs.clone(),
 8342                        cx,
 8343                    )
 8344                })?
 8345                .await?;
 8346
 8347            let window_bounds_override = window_bounds_env_override();
 8348            cx.update(|cx| {
 8349                let mut options = (app_state.build_window_options)(None, cx);
 8350                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8351                cx.open_window(options, |window, cx| {
 8352                    cx.new(|cx| {
 8353                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8354                    })
 8355                })
 8356            })??
 8357        };
 8358
 8359        workspace.update(cx, |workspace, window, cx| {
 8360            cx.activate(true);
 8361            window.activate_window();
 8362
 8363            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8364                let follow_peer_id = room
 8365                    .read(cx)
 8366                    .remote_participants()
 8367                    .iter()
 8368                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8369                    .map(|(_, p)| p.peer_id)
 8370                    .or_else(|| {
 8371                        // If we couldn't follow the given user, follow the host instead.
 8372                        let collaborator = workspace
 8373                            .project()
 8374                            .read(cx)
 8375                            .collaborators()
 8376                            .values()
 8377                            .find(|collaborator| collaborator.is_host)?;
 8378                        Some(collaborator.peer_id)
 8379                    });
 8380
 8381                if let Some(follow_peer_id) = follow_peer_id {
 8382                    workspace.follow(follow_peer_id, window, cx);
 8383                }
 8384            }
 8385        })?;
 8386
 8387        anyhow::Ok(())
 8388    })
 8389}
 8390
 8391pub fn reload(cx: &mut App) {
 8392    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8393    let mut workspace_windows = cx
 8394        .windows()
 8395        .into_iter()
 8396        .filter_map(|window| window.downcast::<Workspace>())
 8397        .collect::<Vec<_>>();
 8398
 8399    // If multiple windows have unsaved changes, and need a save prompt,
 8400    // prompt in the active window before switching to a different window.
 8401    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8402
 8403    let mut prompt = None;
 8404    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8405        prompt = window
 8406            .update(cx, |_, window, cx| {
 8407                window.prompt(
 8408                    PromptLevel::Info,
 8409                    "Are you sure you want to restart?",
 8410                    None,
 8411                    &["Restart", "Cancel"],
 8412                    cx,
 8413                )
 8414            })
 8415            .ok();
 8416    }
 8417
 8418    cx.spawn(async move |cx| {
 8419        if let Some(prompt) = prompt {
 8420            let answer = prompt.await?;
 8421            if answer != 0 {
 8422                return Ok(());
 8423            }
 8424        }
 8425
 8426        // If the user cancels any save prompt, then keep the app open.
 8427        for window in workspace_windows {
 8428            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8429                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8430            }) && !should_close.await?
 8431            {
 8432                return Ok(());
 8433            }
 8434        }
 8435        cx.update(|cx| cx.restart())
 8436    })
 8437    .detach_and_log_err(cx);
 8438}
 8439
 8440fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8441    let mut parts = value.split(',');
 8442    let x: usize = parts.next()?.parse().ok()?;
 8443    let y: usize = parts.next()?.parse().ok()?;
 8444    Some(point(px(x as f32), px(y as f32)))
 8445}
 8446
 8447fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8448    let mut parts = value.split(',');
 8449    let width: usize = parts.next()?.parse().ok()?;
 8450    let height: usize = parts.next()?.parse().ok()?;
 8451    Some(size(px(width as f32), px(height as f32)))
 8452}
 8453
 8454/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8455pub fn client_side_decorations(
 8456    element: impl IntoElement,
 8457    window: &mut Window,
 8458    cx: &mut App,
 8459) -> Stateful<Div> {
 8460    const BORDER_SIZE: Pixels = px(1.0);
 8461    let decorations = window.window_decorations();
 8462
 8463    match decorations {
 8464        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8465        Decorations::Server => window.set_client_inset(px(0.0)),
 8466    }
 8467
 8468    struct GlobalResizeEdge(ResizeEdge);
 8469    impl Global for GlobalResizeEdge {}
 8470
 8471    div()
 8472        .id("window-backdrop")
 8473        .bg(transparent_black())
 8474        .map(|div| match decorations {
 8475            Decorations::Server => div,
 8476            Decorations::Client { tiling, .. } => div
 8477                .when(!(tiling.top || tiling.right), |div| {
 8478                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8479                })
 8480                .when(!(tiling.top || tiling.left), |div| {
 8481                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8482                })
 8483                .when(!(tiling.bottom || tiling.right), |div| {
 8484                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8485                })
 8486                .when(!(tiling.bottom || tiling.left), |div| {
 8487                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8488                })
 8489                .when(!tiling.top, |div| {
 8490                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8491                })
 8492                .when(!tiling.bottom, |div| {
 8493                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8494                })
 8495                .when(!tiling.left, |div| {
 8496                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8497                })
 8498                .when(!tiling.right, |div| {
 8499                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8500                })
 8501                .on_mouse_move(move |e, window, cx| {
 8502                    let size = window.window_bounds().get_bounds().size;
 8503                    let pos = e.position;
 8504
 8505                    let new_edge =
 8506                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8507
 8508                    let edge = cx.try_global::<GlobalResizeEdge>();
 8509                    if new_edge != edge.map(|edge| edge.0) {
 8510                        window
 8511                            .window_handle()
 8512                            .update(cx, |workspace, _, cx| {
 8513                                cx.notify(workspace.entity_id());
 8514                            })
 8515                            .ok();
 8516                    }
 8517                })
 8518                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8519                    let size = window.window_bounds().get_bounds().size;
 8520                    let pos = e.position;
 8521
 8522                    let edge = match resize_edge(
 8523                        pos,
 8524                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8525                        size,
 8526                        tiling,
 8527                    ) {
 8528                        Some(value) => value,
 8529                        None => return,
 8530                    };
 8531
 8532                    window.start_window_resize(edge);
 8533                }),
 8534        })
 8535        .size_full()
 8536        .child(
 8537            div()
 8538                .cursor(CursorStyle::Arrow)
 8539                .map(|div| match decorations {
 8540                    Decorations::Server => div,
 8541                    Decorations::Client { tiling } => div
 8542                        .border_color(cx.theme().colors().border)
 8543                        .when(!(tiling.top || tiling.right), |div| {
 8544                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8545                        })
 8546                        .when(!(tiling.top || tiling.left), |div| {
 8547                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8548                        })
 8549                        .when(!(tiling.bottom || tiling.right), |div| {
 8550                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8551                        })
 8552                        .when(!(tiling.bottom || tiling.left), |div| {
 8553                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8554                        })
 8555                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8556                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8557                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8558                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8559                        .when(!tiling.is_tiled(), |div| {
 8560                            div.shadow(vec![gpui::BoxShadow {
 8561                                color: Hsla {
 8562                                    h: 0.,
 8563                                    s: 0.,
 8564                                    l: 0.,
 8565                                    a: 0.4,
 8566                                },
 8567                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8568                                spread_radius: px(0.),
 8569                                offset: point(px(0.0), px(0.0)),
 8570                            }])
 8571                        }),
 8572                })
 8573                .on_mouse_move(|_e, _, cx| {
 8574                    cx.stop_propagation();
 8575                })
 8576                .size_full()
 8577                .child(element),
 8578        )
 8579        .map(|div| match decorations {
 8580            Decorations::Server => div,
 8581            Decorations::Client { tiling, .. } => div.child(
 8582                canvas(
 8583                    |_bounds, window, _| {
 8584                        window.insert_hitbox(
 8585                            Bounds::new(
 8586                                point(px(0.0), px(0.0)),
 8587                                window.window_bounds().get_bounds().size,
 8588                            ),
 8589                            HitboxBehavior::Normal,
 8590                        )
 8591                    },
 8592                    move |_bounds, hitbox, window, cx| {
 8593                        let mouse = window.mouse_position();
 8594                        let size = window.window_bounds().get_bounds().size;
 8595                        let Some(edge) =
 8596                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8597                        else {
 8598                            return;
 8599                        };
 8600                        cx.set_global(GlobalResizeEdge(edge));
 8601                        window.set_cursor_style(
 8602                            match edge {
 8603                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8604                                ResizeEdge::Left | ResizeEdge::Right => {
 8605                                    CursorStyle::ResizeLeftRight
 8606                                }
 8607                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8608                                    CursorStyle::ResizeUpLeftDownRight
 8609                                }
 8610                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8611                                    CursorStyle::ResizeUpRightDownLeft
 8612                                }
 8613                            },
 8614                            &hitbox,
 8615                        );
 8616                    },
 8617                )
 8618                .size_full()
 8619                .absolute(),
 8620            ),
 8621        })
 8622}
 8623
 8624fn resize_edge(
 8625    pos: Point<Pixels>,
 8626    shadow_size: Pixels,
 8627    window_size: Size<Pixels>,
 8628    tiling: Tiling,
 8629) -> Option<ResizeEdge> {
 8630    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8631    if bounds.contains(&pos) {
 8632        return None;
 8633    }
 8634
 8635    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8636    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8637    if !tiling.top && top_left_bounds.contains(&pos) {
 8638        return Some(ResizeEdge::TopLeft);
 8639    }
 8640
 8641    let top_right_bounds = Bounds::new(
 8642        Point::new(window_size.width - corner_size.width, px(0.)),
 8643        corner_size,
 8644    );
 8645    if !tiling.top && top_right_bounds.contains(&pos) {
 8646        return Some(ResizeEdge::TopRight);
 8647    }
 8648
 8649    let bottom_left_bounds = Bounds::new(
 8650        Point::new(px(0.), window_size.height - corner_size.height),
 8651        corner_size,
 8652    );
 8653    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8654        return Some(ResizeEdge::BottomLeft);
 8655    }
 8656
 8657    let bottom_right_bounds = Bounds::new(
 8658        Point::new(
 8659            window_size.width - corner_size.width,
 8660            window_size.height - corner_size.height,
 8661        ),
 8662        corner_size,
 8663    );
 8664    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8665        return Some(ResizeEdge::BottomRight);
 8666    }
 8667
 8668    if !tiling.top && pos.y < shadow_size {
 8669        Some(ResizeEdge::Top)
 8670    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8671        Some(ResizeEdge::Bottom)
 8672    } else if !tiling.left && pos.x < shadow_size {
 8673        Some(ResizeEdge::Left)
 8674    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8675        Some(ResizeEdge::Right)
 8676    } else {
 8677        None
 8678    }
 8679}
 8680
 8681fn join_pane_into_active(
 8682    active_pane: &Entity<Pane>,
 8683    pane: &Entity<Pane>,
 8684    window: &mut Window,
 8685    cx: &mut App,
 8686) {
 8687    if pane == active_pane {
 8688    } else if pane.read(cx).items_len() == 0 {
 8689        pane.update(cx, |_, cx| {
 8690            cx.emit(pane::Event::Remove {
 8691                focus_on_pane: None,
 8692            });
 8693        })
 8694    } else {
 8695        move_all_items(pane, active_pane, window, cx);
 8696    }
 8697}
 8698
 8699fn move_all_items(
 8700    from_pane: &Entity<Pane>,
 8701    to_pane: &Entity<Pane>,
 8702    window: &mut Window,
 8703    cx: &mut App,
 8704) {
 8705    let destination_is_different = from_pane != to_pane;
 8706    let mut moved_items = 0;
 8707    for (item_ix, item_handle) in from_pane
 8708        .read(cx)
 8709        .items()
 8710        .enumerate()
 8711        .map(|(ix, item)| (ix, item.clone()))
 8712        .collect::<Vec<_>>()
 8713    {
 8714        let ix = item_ix - moved_items;
 8715        if destination_is_different {
 8716            // Close item from previous pane
 8717            from_pane.update(cx, |source, cx| {
 8718                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8719            });
 8720            moved_items += 1;
 8721        }
 8722
 8723        // This automatically removes duplicate items in the pane
 8724        to_pane.update(cx, |destination, cx| {
 8725            destination.add_item(item_handle, true, true, None, window, cx);
 8726            window.focus(&destination.focus_handle(cx), cx)
 8727        });
 8728    }
 8729}
 8730
 8731pub fn move_item(
 8732    source: &Entity<Pane>,
 8733    destination: &Entity<Pane>,
 8734    item_id_to_move: EntityId,
 8735    destination_index: usize,
 8736    activate: bool,
 8737    window: &mut Window,
 8738    cx: &mut App,
 8739) {
 8740    let Some((item_ix, item_handle)) = source
 8741        .read(cx)
 8742        .items()
 8743        .enumerate()
 8744        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8745        .map(|(ix, item)| (ix, item.clone()))
 8746    else {
 8747        // Tab was closed during drag
 8748        return;
 8749    };
 8750
 8751    if source != destination {
 8752        // Close item from previous pane
 8753        source.update(cx, |source, cx| {
 8754            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8755        });
 8756    }
 8757
 8758    // This automatically removes duplicate items in the pane
 8759    destination.update(cx, |destination, cx| {
 8760        destination.add_item_inner(
 8761            item_handle,
 8762            activate,
 8763            activate,
 8764            activate,
 8765            Some(destination_index),
 8766            window,
 8767            cx,
 8768        );
 8769        if activate {
 8770            window.focus(&destination.focus_handle(cx), cx)
 8771        }
 8772    });
 8773}
 8774
 8775pub fn move_active_item(
 8776    source: &Entity<Pane>,
 8777    destination: &Entity<Pane>,
 8778    focus_destination: bool,
 8779    close_if_empty: bool,
 8780    window: &mut Window,
 8781    cx: &mut App,
 8782) {
 8783    if source == destination {
 8784        return;
 8785    }
 8786    let Some(active_item) = source.read(cx).active_item() else {
 8787        return;
 8788    };
 8789    source.update(cx, |source_pane, cx| {
 8790        let item_id = active_item.item_id();
 8791        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8792        destination.update(cx, |target_pane, cx| {
 8793            target_pane.add_item(
 8794                active_item,
 8795                focus_destination,
 8796                focus_destination,
 8797                Some(target_pane.items_len()),
 8798                window,
 8799                cx,
 8800            );
 8801        });
 8802    });
 8803}
 8804
 8805pub fn clone_active_item(
 8806    workspace_id: Option<WorkspaceId>,
 8807    source: &Entity<Pane>,
 8808    destination: &Entity<Pane>,
 8809    focus_destination: bool,
 8810    window: &mut Window,
 8811    cx: &mut App,
 8812) {
 8813    if source == destination {
 8814        return;
 8815    }
 8816    let Some(active_item) = source.read(cx).active_item() else {
 8817        return;
 8818    };
 8819    if !active_item.can_split(cx) {
 8820        return;
 8821    }
 8822    let destination = destination.downgrade();
 8823    let task = active_item.clone_on_split(workspace_id, window, cx);
 8824    window
 8825        .spawn(cx, async move |cx| {
 8826            let Some(clone) = task.await else {
 8827                return;
 8828            };
 8829            destination
 8830                .update_in(cx, |target_pane, window, cx| {
 8831                    target_pane.add_item(
 8832                        clone,
 8833                        focus_destination,
 8834                        focus_destination,
 8835                        Some(target_pane.items_len()),
 8836                        window,
 8837                        cx,
 8838                    );
 8839                })
 8840                .log_err();
 8841        })
 8842        .detach();
 8843}
 8844
 8845#[derive(Debug)]
 8846pub struct WorkspacePosition {
 8847    pub window_bounds: Option<WindowBounds>,
 8848    pub display: Option<Uuid>,
 8849    pub centered_layout: bool,
 8850}
 8851
 8852pub fn remote_workspace_position_from_db(
 8853    connection_options: RemoteConnectionOptions,
 8854    paths_to_open: &[PathBuf],
 8855    cx: &App,
 8856) -> Task<Result<WorkspacePosition>> {
 8857    let paths = paths_to_open.to_vec();
 8858
 8859    cx.background_spawn(async move {
 8860        let remote_connection_id = persistence::DB
 8861            .get_or_create_remote_connection(connection_options)
 8862            .await
 8863            .context("fetching serialized ssh project")?;
 8864        let serialized_workspace =
 8865            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8866
 8867        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8868            (Some(WindowBounds::Windowed(bounds)), None)
 8869        } else {
 8870            let restorable_bounds = serialized_workspace
 8871                .as_ref()
 8872                .and_then(|workspace| {
 8873                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8874                })
 8875                .or_else(|| persistence::read_default_window_bounds());
 8876
 8877            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8878                (Some(serialized_bounds), Some(serialized_display))
 8879            } else {
 8880                (None, None)
 8881            }
 8882        };
 8883
 8884        let centered_layout = serialized_workspace
 8885            .as_ref()
 8886            .map(|w| w.centered_layout)
 8887            .unwrap_or(false);
 8888
 8889        Ok(WorkspacePosition {
 8890            window_bounds,
 8891            display,
 8892            centered_layout,
 8893        })
 8894    })
 8895}
 8896
 8897pub fn with_active_or_new_workspace(
 8898    cx: &mut App,
 8899    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8900) {
 8901    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8902        Some(workspace) => {
 8903            cx.defer(move |cx| {
 8904                workspace
 8905                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8906                    .log_err();
 8907            });
 8908        }
 8909        None => {
 8910            let app_state = AppState::global(cx);
 8911            if let Some(app_state) = app_state.upgrade() {
 8912                open_new(
 8913                    OpenOptions::default(),
 8914                    app_state,
 8915                    cx,
 8916                    move |workspace, window, cx| f(workspace, window, cx),
 8917                )
 8918                .detach_and_log_err(cx);
 8919            }
 8920        }
 8921    }
 8922}
 8923
 8924#[cfg(test)]
 8925mod tests {
 8926    use std::{cell::RefCell, rc::Rc};
 8927
 8928    use super::*;
 8929    use crate::{
 8930        dock::{PanelEvent, test::TestPanel},
 8931        item::{
 8932            ItemBufferKind, ItemEvent,
 8933            test::{TestItem, TestProjectItem},
 8934        },
 8935    };
 8936    use fs::FakeFs;
 8937    use gpui::{
 8938        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8939        UpdateGlobal, VisualTestContext, px,
 8940    };
 8941    use project::{Project, ProjectEntryId};
 8942    use serde_json::json;
 8943    use settings::SettingsStore;
 8944    use util::rel_path::rel_path;
 8945
 8946    #[gpui::test]
 8947    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8948        init_test(cx);
 8949
 8950        let fs = FakeFs::new(cx.executor());
 8951        let project = Project::test(fs, [], cx).await;
 8952        let (workspace, cx) =
 8953            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8954
 8955        // Adding an item with no ambiguity renders the tab without detail.
 8956        let item1 = cx.new(|cx| {
 8957            let mut item = TestItem::new(cx);
 8958            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8959            item
 8960        });
 8961        workspace.update_in(cx, |workspace, window, cx| {
 8962            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8963        });
 8964        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8965
 8966        // Adding an item that creates ambiguity increases the level of detail on
 8967        // both tabs.
 8968        let item2 = cx.new_window_entity(|_window, cx| {
 8969            let mut item = TestItem::new(cx);
 8970            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8971            item
 8972        });
 8973        workspace.update_in(cx, |workspace, window, cx| {
 8974            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8975        });
 8976        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8977        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8978
 8979        // Adding an item that creates ambiguity increases the level of detail only
 8980        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8981        // we stop at the highest detail available.
 8982        let item3 = cx.new(|cx| {
 8983            let mut item = TestItem::new(cx);
 8984            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8985            item
 8986        });
 8987        workspace.update_in(cx, |workspace, window, cx| {
 8988            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8989        });
 8990        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8991        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8992        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8993    }
 8994
 8995    #[gpui::test]
 8996    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8997        init_test(cx);
 8998
 8999        let fs = FakeFs::new(cx.executor());
 9000        fs.insert_tree(
 9001            "/root1",
 9002            json!({
 9003                "one.txt": "",
 9004                "two.txt": "",
 9005            }),
 9006        )
 9007        .await;
 9008        fs.insert_tree(
 9009            "/root2",
 9010            json!({
 9011                "three.txt": "",
 9012            }),
 9013        )
 9014        .await;
 9015
 9016        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9017        let (workspace, cx) =
 9018            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9019        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9020        let worktree_id = project.update(cx, |project, cx| {
 9021            project.worktrees(cx).next().unwrap().read(cx).id()
 9022        });
 9023
 9024        let item1 = cx.new(|cx| {
 9025            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9026        });
 9027        let item2 = cx.new(|cx| {
 9028            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9029        });
 9030
 9031        // Add an item to an empty pane
 9032        workspace.update_in(cx, |workspace, window, cx| {
 9033            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9034        });
 9035        project.update(cx, |project, cx| {
 9036            assert_eq!(
 9037                project.active_entry(),
 9038                project
 9039                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9040                    .map(|e| e.id)
 9041            );
 9042        });
 9043        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9044
 9045        // Add a second item to a non-empty pane
 9046        workspace.update_in(cx, |workspace, window, cx| {
 9047            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9048        });
 9049        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9050        project.update(cx, |project, cx| {
 9051            assert_eq!(
 9052                project.active_entry(),
 9053                project
 9054                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9055                    .map(|e| e.id)
 9056            );
 9057        });
 9058
 9059        // Close the active item
 9060        pane.update_in(cx, |pane, window, cx| {
 9061            pane.close_active_item(&Default::default(), window, cx)
 9062        })
 9063        .await
 9064        .unwrap();
 9065        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9066        project.update(cx, |project, cx| {
 9067            assert_eq!(
 9068                project.active_entry(),
 9069                project
 9070                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9071                    .map(|e| e.id)
 9072            );
 9073        });
 9074
 9075        // Add a project folder
 9076        project
 9077            .update(cx, |project, cx| {
 9078                project.find_or_create_worktree("root2", true, cx)
 9079            })
 9080            .await
 9081            .unwrap();
 9082        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9083
 9084        // Remove a project folder
 9085        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9086        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9087    }
 9088
 9089    #[gpui::test]
 9090    async fn test_close_window(cx: &mut TestAppContext) {
 9091        init_test(cx);
 9092
 9093        let fs = FakeFs::new(cx.executor());
 9094        fs.insert_tree("/root", json!({ "one": "" })).await;
 9095
 9096        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9097        let (workspace, cx) =
 9098            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9099
 9100        // When there are no dirty items, there's nothing to do.
 9101        let item1 = cx.new(TestItem::new);
 9102        workspace.update_in(cx, |w, window, cx| {
 9103            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9104        });
 9105        let task = workspace.update_in(cx, |w, window, cx| {
 9106            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9107        });
 9108        assert!(task.await.unwrap());
 9109
 9110        // When there are dirty untitled items, prompt to save each one. If the user
 9111        // cancels any prompt, then abort.
 9112        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9113        let item3 = cx.new(|cx| {
 9114            TestItem::new(cx)
 9115                .with_dirty(true)
 9116                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9117        });
 9118        workspace.update_in(cx, |w, window, cx| {
 9119            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9120            w.add_item_to_active_pane(Box::new(item3.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        cx.executor().run_until_parked();
 9126        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9127        cx.executor().run_until_parked();
 9128        assert!(!cx.has_pending_prompt());
 9129        assert!(!task.await.unwrap());
 9130    }
 9131
 9132    #[gpui::test]
 9133    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9134        init_test(cx);
 9135
 9136        // Register TestItem as a serializable item
 9137        cx.update(|cx| {
 9138            register_serializable_item::<TestItem>(cx);
 9139        });
 9140
 9141        let fs = FakeFs::new(cx.executor());
 9142        fs.insert_tree("/root", json!({ "one": "" })).await;
 9143
 9144        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9145        let (workspace, cx) =
 9146            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9147
 9148        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9149        let item1 = cx.new(|cx| {
 9150            TestItem::new(cx)
 9151                .with_dirty(true)
 9152                .with_serialize(|| Some(Task::ready(Ok(()))))
 9153        });
 9154        let item2 = cx.new(|cx| {
 9155            TestItem::new(cx)
 9156                .with_dirty(true)
 9157                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9158                .with_serialize(|| Some(Task::ready(Ok(()))))
 9159        });
 9160        workspace.update_in(cx, |w, window, cx| {
 9161            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9162            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9163        });
 9164        let task = workspace.update_in(cx, |w, window, cx| {
 9165            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9166        });
 9167        assert!(task.await.unwrap());
 9168    }
 9169
 9170    #[gpui::test]
 9171    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9172        init_test(cx);
 9173
 9174        let fs = FakeFs::new(cx.executor());
 9175
 9176        let project = Project::test(fs, None, cx).await;
 9177        let (workspace, cx) =
 9178            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9179
 9180        let item1 = cx.new(|cx| {
 9181            TestItem::new(cx)
 9182                .with_dirty(true)
 9183                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9184        });
 9185        let item2 = cx.new(|cx| {
 9186            TestItem::new(cx)
 9187                .with_dirty(true)
 9188                .with_conflict(true)
 9189                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9190        });
 9191        let item3 = cx.new(|cx| {
 9192            TestItem::new(cx)
 9193                .with_dirty(true)
 9194                .with_conflict(true)
 9195                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9196        });
 9197        let item4 = cx.new(|cx| {
 9198            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9199                let project_item = TestProjectItem::new_untitled(cx);
 9200                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9201                project_item
 9202            }])
 9203        });
 9204        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9205            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9206            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9207            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9208            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9209            workspace.active_pane().clone()
 9210        });
 9211
 9212        let close_items = pane.update_in(cx, |pane, window, cx| {
 9213            pane.activate_item(1, true, true, window, cx);
 9214            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9215            let item1_id = item1.item_id();
 9216            let item3_id = item3.item_id();
 9217            let item4_id = item4.item_id();
 9218            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9219                [item1_id, item3_id, item4_id].contains(&id)
 9220            })
 9221        });
 9222        cx.executor().run_until_parked();
 9223
 9224        assert!(cx.has_pending_prompt());
 9225        cx.simulate_prompt_answer("Save all");
 9226
 9227        cx.executor().run_until_parked();
 9228
 9229        // Item 1 is saved. There's a prompt to save item 3.
 9230        pane.update(cx, |pane, cx| {
 9231            assert_eq!(item1.read(cx).save_count, 1);
 9232            assert_eq!(item1.read(cx).save_as_count, 0);
 9233            assert_eq!(item1.read(cx).reload_count, 0);
 9234            assert_eq!(pane.items_len(), 3);
 9235            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9236        });
 9237        assert!(cx.has_pending_prompt());
 9238
 9239        // Cancel saving item 3.
 9240        cx.simulate_prompt_answer("Discard");
 9241        cx.executor().run_until_parked();
 9242
 9243        // Item 3 is reloaded. There's a prompt to save item 4.
 9244        pane.update(cx, |pane, cx| {
 9245            assert_eq!(item3.read(cx).save_count, 0);
 9246            assert_eq!(item3.read(cx).save_as_count, 0);
 9247            assert_eq!(item3.read(cx).reload_count, 1);
 9248            assert_eq!(pane.items_len(), 2);
 9249            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9250        });
 9251
 9252        // There's a prompt for a path for item 4.
 9253        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9254        close_items.await.unwrap();
 9255
 9256        // The requested items are closed.
 9257        pane.update(cx, |pane, cx| {
 9258            assert_eq!(item4.read(cx).save_count, 0);
 9259            assert_eq!(item4.read(cx).save_as_count, 1);
 9260            assert_eq!(item4.read(cx).reload_count, 0);
 9261            assert_eq!(pane.items_len(), 1);
 9262            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9263        });
 9264    }
 9265
 9266    #[gpui::test]
 9267    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9268        init_test(cx);
 9269
 9270        let fs = FakeFs::new(cx.executor());
 9271        let project = Project::test(fs, [], cx).await;
 9272        let (workspace, cx) =
 9273            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9274
 9275        // Create several workspace items with single project entries, and two
 9276        // workspace items with multiple project entries.
 9277        let single_entry_items = (0..=4)
 9278            .map(|project_entry_id| {
 9279                cx.new(|cx| {
 9280                    TestItem::new(cx)
 9281                        .with_dirty(true)
 9282                        .with_project_items(&[dirty_project_item(
 9283                            project_entry_id,
 9284                            &format!("{project_entry_id}.txt"),
 9285                            cx,
 9286                        )])
 9287                })
 9288            })
 9289            .collect::<Vec<_>>();
 9290        let item_2_3 = cx.new(|cx| {
 9291            TestItem::new(cx)
 9292                .with_dirty(true)
 9293                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9294                .with_project_items(&[
 9295                    single_entry_items[2].read(cx).project_items[0].clone(),
 9296                    single_entry_items[3].read(cx).project_items[0].clone(),
 9297                ])
 9298        });
 9299        let item_3_4 = cx.new(|cx| {
 9300            TestItem::new(cx)
 9301                .with_dirty(true)
 9302                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9303                .with_project_items(&[
 9304                    single_entry_items[3].read(cx).project_items[0].clone(),
 9305                    single_entry_items[4].read(cx).project_items[0].clone(),
 9306                ])
 9307        });
 9308
 9309        // Create two panes that contain the following project entries:
 9310        //   left pane:
 9311        //     multi-entry items:   (2, 3)
 9312        //     single-entry items:  0, 2, 3, 4
 9313        //   right pane:
 9314        //     single-entry items:  4, 1
 9315        //     multi-entry items:   (3, 4)
 9316        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9317            let left_pane = workspace.active_pane().clone();
 9318            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9319            workspace.add_item_to_active_pane(
 9320                single_entry_items[0].boxed_clone(),
 9321                None,
 9322                true,
 9323                window,
 9324                cx,
 9325            );
 9326            workspace.add_item_to_active_pane(
 9327                single_entry_items[2].boxed_clone(),
 9328                None,
 9329                true,
 9330                window,
 9331                cx,
 9332            );
 9333            workspace.add_item_to_active_pane(
 9334                single_entry_items[3].boxed_clone(),
 9335                None,
 9336                true,
 9337                window,
 9338                cx,
 9339            );
 9340            workspace.add_item_to_active_pane(
 9341                single_entry_items[4].boxed_clone(),
 9342                None,
 9343                true,
 9344                window,
 9345                cx,
 9346            );
 9347
 9348            let right_pane =
 9349                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9350
 9351            let boxed_clone = single_entry_items[1].boxed_clone();
 9352            let right_pane = window.spawn(cx, async move |cx| {
 9353                right_pane.await.inspect(|right_pane| {
 9354                    right_pane
 9355                        .update_in(cx, |pane, window, cx| {
 9356                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9357                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9358                        })
 9359                        .unwrap();
 9360                })
 9361            });
 9362
 9363            (left_pane, right_pane)
 9364        });
 9365        let right_pane = right_pane.await.unwrap();
 9366        cx.focus(&right_pane);
 9367
 9368        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9369            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9370                .unwrap()
 9371        });
 9372        cx.executor().run_until_parked();
 9373
 9374        let msg = cx.pending_prompt().unwrap().0;
 9375        assert!(msg.contains("1.txt"));
 9376        assert!(!msg.contains("2.txt"));
 9377        assert!(!msg.contains("3.txt"));
 9378        assert!(!msg.contains("4.txt"));
 9379
 9380        cx.simulate_prompt_answer("Cancel");
 9381        close.await;
 9382
 9383        left_pane
 9384            .update_in(cx, |left_pane, window, cx| {
 9385                left_pane.close_item_by_id(
 9386                    single_entry_items[3].entity_id(),
 9387                    SaveIntent::Skip,
 9388                    window,
 9389                    cx,
 9390                )
 9391            })
 9392            .await
 9393            .unwrap();
 9394
 9395        close = right_pane.update_in(cx, |pane, window, cx| {
 9396            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9397                .unwrap()
 9398        });
 9399        cx.executor().run_until_parked();
 9400
 9401        let details = cx.pending_prompt().unwrap().1;
 9402        assert!(details.contains("1.txt"));
 9403        assert!(!details.contains("2.txt"));
 9404        assert!(details.contains("3.txt"));
 9405        // ideally this assertion could be made, but today we can only
 9406        // save whole items not project items, so the orphaned item 3 causes
 9407        // 4 to be saved too.
 9408        // assert!(!details.contains("4.txt"));
 9409
 9410        cx.simulate_prompt_answer("Save all");
 9411
 9412        cx.executor().run_until_parked();
 9413        close.await;
 9414        right_pane.read_with(cx, |pane, _| {
 9415            assert_eq!(pane.items_len(), 0);
 9416        });
 9417    }
 9418
 9419    #[gpui::test]
 9420    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9421        init_test(cx);
 9422
 9423        let fs = FakeFs::new(cx.executor());
 9424        let project = Project::test(fs, [], cx).await;
 9425        let (workspace, cx) =
 9426            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9427        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9428
 9429        let item = cx.new(|cx| {
 9430            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9431        });
 9432        let item_id = item.entity_id();
 9433        workspace.update_in(cx, |workspace, window, cx| {
 9434            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9435        });
 9436
 9437        // Autosave on window change.
 9438        item.update(cx, |item, cx| {
 9439            SettingsStore::update_global(cx, |settings, cx| {
 9440                settings.update_user_settings(cx, |settings| {
 9441                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9442                })
 9443            });
 9444            item.is_dirty = true;
 9445        });
 9446
 9447        // Deactivating the window saves the file.
 9448        cx.deactivate_window();
 9449        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9450
 9451        // Re-activating the window doesn't save the file.
 9452        cx.update(|window, _| window.activate_window());
 9453        cx.executor().run_until_parked();
 9454        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9455
 9456        // Autosave on focus change.
 9457        item.update_in(cx, |item, window, cx| {
 9458            cx.focus_self(window);
 9459            SettingsStore::update_global(cx, |settings, cx| {
 9460                settings.update_user_settings(cx, |settings| {
 9461                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9462                })
 9463            });
 9464            item.is_dirty = true;
 9465        });
 9466        // Blurring the item saves the file.
 9467        item.update_in(cx, |_, window, _| window.blur());
 9468        cx.executor().run_until_parked();
 9469        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9470
 9471        // Deactivating the window still saves the file.
 9472        item.update_in(cx, |item, window, cx| {
 9473            cx.focus_self(window);
 9474            item.is_dirty = true;
 9475        });
 9476        cx.deactivate_window();
 9477        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9478
 9479        // Autosave after delay.
 9480        item.update(cx, |item, cx| {
 9481            SettingsStore::update_global(cx, |settings, cx| {
 9482                settings.update_user_settings(cx, |settings| {
 9483                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9484                        milliseconds: 500.into(),
 9485                    });
 9486                })
 9487            });
 9488            item.is_dirty = true;
 9489            cx.emit(ItemEvent::Edit);
 9490        });
 9491
 9492        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9493        cx.executor().advance_clock(Duration::from_millis(250));
 9494        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9495
 9496        // After delay expires, the file is saved.
 9497        cx.executor().advance_clock(Duration::from_millis(250));
 9498        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9499
 9500        // Autosave after delay, should save earlier than delay if tab is closed
 9501        item.update(cx, |item, cx| {
 9502            item.is_dirty = true;
 9503            cx.emit(ItemEvent::Edit);
 9504        });
 9505        cx.executor().advance_clock(Duration::from_millis(250));
 9506        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9507
 9508        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9509        pane.update_in(cx, |pane, window, cx| {
 9510            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9511        })
 9512        .await
 9513        .unwrap();
 9514        assert!(!cx.has_pending_prompt());
 9515        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9516
 9517        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9518        workspace.update_in(cx, |workspace, window, cx| {
 9519            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9520        });
 9521        item.update_in(cx, |item, _window, cx| {
 9522            item.is_dirty = true;
 9523            for project_item in &mut item.project_items {
 9524                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9525            }
 9526        });
 9527        cx.run_until_parked();
 9528        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9529
 9530        // Autosave on focus change, ensuring closing the tab counts as such.
 9531        item.update(cx, |item, cx| {
 9532            SettingsStore::update_global(cx, |settings, cx| {
 9533                settings.update_user_settings(cx, |settings| {
 9534                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9535                })
 9536            });
 9537            item.is_dirty = true;
 9538            for project_item in &mut item.project_items {
 9539                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9540            }
 9541        });
 9542
 9543        pane.update_in(cx, |pane, window, cx| {
 9544            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9545        })
 9546        .await
 9547        .unwrap();
 9548        assert!(!cx.has_pending_prompt());
 9549        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9550
 9551        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9552        workspace.update_in(cx, |workspace, window, cx| {
 9553            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9554        });
 9555        item.update_in(cx, |item, window, cx| {
 9556            item.project_items[0].update(cx, |item, _| {
 9557                item.entry_id = None;
 9558            });
 9559            item.is_dirty = true;
 9560            window.blur();
 9561        });
 9562        cx.run_until_parked();
 9563        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9564
 9565        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9566        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9567            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9568        });
 9569        cx.run_until_parked();
 9570        assert!(cx.has_pending_prompt());
 9571        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9572    }
 9573
 9574    #[gpui::test]
 9575    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9576        init_test(cx);
 9577
 9578        let fs = FakeFs::new(cx.executor());
 9579
 9580        let project = Project::test(fs, [], cx).await;
 9581        let (workspace, cx) =
 9582            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9583
 9584        let item = cx.new(|cx| {
 9585            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9586        });
 9587        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9588        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9589        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9590
 9591        workspace.update_in(cx, |workspace, window, cx| {
 9592            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9593            let toolbar_notification_count = toolbar_notify_count.clone();
 9594            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9595                *toolbar_notification_count.borrow_mut() += 1
 9596            })
 9597            .detach();
 9598        });
 9599
 9600        pane.read_with(cx, |pane, _| {
 9601            assert!(!pane.can_navigate_backward());
 9602            assert!(!pane.can_navigate_forward());
 9603        });
 9604
 9605        item.update_in(cx, |item, _, cx| {
 9606            item.set_state("one".to_string(), cx);
 9607        });
 9608
 9609        // Toolbar must be notified to re-render the navigation buttons
 9610        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9611
 9612        pane.read_with(cx, |pane, _| {
 9613            assert!(pane.can_navigate_backward());
 9614            assert!(!pane.can_navigate_forward());
 9615        });
 9616
 9617        workspace
 9618            .update_in(cx, |workspace, window, cx| {
 9619                workspace.go_back(pane.downgrade(), window, cx)
 9620            })
 9621            .await
 9622            .unwrap();
 9623
 9624        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9625        pane.read_with(cx, |pane, _| {
 9626            assert!(!pane.can_navigate_backward());
 9627            assert!(pane.can_navigate_forward());
 9628        });
 9629    }
 9630
 9631    #[gpui::test]
 9632    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9633        init_test(cx);
 9634        let fs = FakeFs::new(cx.executor());
 9635
 9636        let project = Project::test(fs, [], cx).await;
 9637        let (workspace, cx) =
 9638            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9639
 9640        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9641            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9642            workspace.add_panel(panel.clone(), window, cx);
 9643
 9644            workspace
 9645                .right_dock()
 9646                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9647
 9648            panel
 9649        });
 9650
 9651        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9652        pane.update_in(cx, |pane, window, cx| {
 9653            let item = cx.new(TestItem::new);
 9654            pane.add_item(Box::new(item), true, true, None, window, cx);
 9655        });
 9656
 9657        // Transfer focus from center to panel
 9658        workspace.update_in(cx, |workspace, window, cx| {
 9659            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9660        });
 9661
 9662        workspace.update_in(cx, |workspace, window, cx| {
 9663            assert!(workspace.right_dock().read(cx).is_open());
 9664            assert!(!panel.is_zoomed(window, cx));
 9665            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9666        });
 9667
 9668        // Transfer focus from panel to center
 9669        workspace.update_in(cx, |workspace, window, cx| {
 9670            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9671        });
 9672
 9673        workspace.update_in(cx, |workspace, window, cx| {
 9674            assert!(workspace.right_dock().read(cx).is_open());
 9675            assert!(!panel.is_zoomed(window, cx));
 9676            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9677        });
 9678
 9679        // Close the dock
 9680        workspace.update_in(cx, |workspace, window, cx| {
 9681            workspace.toggle_dock(DockPosition::Right, window, cx);
 9682        });
 9683
 9684        workspace.update_in(cx, |workspace, window, cx| {
 9685            assert!(!workspace.right_dock().read(cx).is_open());
 9686            assert!(!panel.is_zoomed(window, cx));
 9687            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9688        });
 9689
 9690        // Open the dock
 9691        workspace.update_in(cx, |workspace, window, cx| {
 9692            workspace.toggle_dock(DockPosition::Right, window, cx);
 9693        });
 9694
 9695        workspace.update_in(cx, |workspace, window, cx| {
 9696            assert!(workspace.right_dock().read(cx).is_open());
 9697            assert!(!panel.is_zoomed(window, cx));
 9698            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9699        });
 9700
 9701        // Focus and zoom panel
 9702        panel.update_in(cx, |panel, window, cx| {
 9703            cx.focus_self(window);
 9704            panel.set_zoomed(true, window, cx)
 9705        });
 9706
 9707        workspace.update_in(cx, |workspace, window, cx| {
 9708            assert!(workspace.right_dock().read(cx).is_open());
 9709            assert!(panel.is_zoomed(window, cx));
 9710            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9711        });
 9712
 9713        // Transfer focus to the center closes the dock
 9714        workspace.update_in(cx, |workspace, window, cx| {
 9715            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9716        });
 9717
 9718        workspace.update_in(cx, |workspace, window, cx| {
 9719            assert!(!workspace.right_dock().read(cx).is_open());
 9720            assert!(panel.is_zoomed(window, cx));
 9721            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9722        });
 9723
 9724        // Transferring focus back to the panel keeps it zoomed
 9725        workspace.update_in(cx, |workspace, window, cx| {
 9726            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9727        });
 9728
 9729        workspace.update_in(cx, |workspace, window, cx| {
 9730            assert!(workspace.right_dock().read(cx).is_open());
 9731            assert!(panel.is_zoomed(window, cx));
 9732            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9733        });
 9734
 9735        // Close the dock while it is zoomed
 9736        workspace.update_in(cx, |workspace, window, cx| {
 9737            workspace.toggle_dock(DockPosition::Right, window, cx)
 9738        });
 9739
 9740        workspace.update_in(cx, |workspace, window, cx| {
 9741            assert!(!workspace.right_dock().read(cx).is_open());
 9742            assert!(panel.is_zoomed(window, cx));
 9743            assert!(workspace.zoomed.is_none());
 9744            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9745        });
 9746
 9747        // Opening the dock, when it's zoomed, retains focus
 9748        workspace.update_in(cx, |workspace, window, cx| {
 9749            workspace.toggle_dock(DockPosition::Right, window, cx)
 9750        });
 9751
 9752        workspace.update_in(cx, |workspace, window, cx| {
 9753            assert!(workspace.right_dock().read(cx).is_open());
 9754            assert!(panel.is_zoomed(window, cx));
 9755            assert!(workspace.zoomed.is_some());
 9756            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9757        });
 9758
 9759        // Unzoom and close the panel, zoom the active pane.
 9760        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9761        workspace.update_in(cx, |workspace, window, cx| {
 9762            workspace.toggle_dock(DockPosition::Right, window, cx)
 9763        });
 9764        pane.update_in(cx, |pane, window, cx| {
 9765            pane.toggle_zoom(&Default::default(), window, cx)
 9766        });
 9767
 9768        // Opening a dock unzooms the pane.
 9769        workspace.update_in(cx, |workspace, window, cx| {
 9770            workspace.toggle_dock(DockPosition::Right, window, cx)
 9771        });
 9772        workspace.update_in(cx, |workspace, window, cx| {
 9773            let pane = pane.read(cx);
 9774            assert!(!pane.is_zoomed());
 9775            assert!(!pane.focus_handle(cx).is_focused(window));
 9776            assert!(workspace.right_dock().read(cx).is_open());
 9777            assert!(workspace.zoomed.is_none());
 9778        });
 9779    }
 9780
 9781    #[gpui::test]
 9782    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9783        init_test(cx);
 9784        let fs = FakeFs::new(cx.executor());
 9785
 9786        let project = Project::test(fs, [], cx).await;
 9787        let (workspace, cx) =
 9788            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9789
 9790        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9791            workspace.active_pane().clone()
 9792        });
 9793
 9794        // Add an item to the pane so it can be zoomed
 9795        workspace.update_in(cx, |workspace, window, cx| {
 9796            let item = cx.new(TestItem::new);
 9797            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9798        });
 9799
 9800        // Initially not zoomed
 9801        workspace.update_in(cx, |workspace, _window, cx| {
 9802            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9803            assert!(
 9804                workspace.zoomed.is_none(),
 9805                "Workspace should track no zoomed pane"
 9806            );
 9807            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9808        });
 9809
 9810        // Zoom In
 9811        pane.update_in(cx, |pane, window, cx| {
 9812            pane.zoom_in(&crate::ZoomIn, window, cx);
 9813        });
 9814
 9815        workspace.update_in(cx, |workspace, window, cx| {
 9816            assert!(
 9817                pane.read(cx).is_zoomed(),
 9818                "Pane should be zoomed after ZoomIn"
 9819            );
 9820            assert!(
 9821                workspace.zoomed.is_some(),
 9822                "Workspace should track the zoomed pane"
 9823            );
 9824            assert!(
 9825                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9826                "ZoomIn should focus the pane"
 9827            );
 9828        });
 9829
 9830        // Zoom In again is a no-op
 9831        pane.update_in(cx, |pane, window, cx| {
 9832            pane.zoom_in(&crate::ZoomIn, window, cx);
 9833        });
 9834
 9835        workspace.update_in(cx, |workspace, window, cx| {
 9836            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9837            assert!(
 9838                workspace.zoomed.is_some(),
 9839                "Workspace still tracks zoomed pane"
 9840            );
 9841            assert!(
 9842                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9843                "Pane remains focused after repeated ZoomIn"
 9844            );
 9845        });
 9846
 9847        // Zoom Out
 9848        pane.update_in(cx, |pane, window, cx| {
 9849            pane.zoom_out(&crate::ZoomOut, window, cx);
 9850        });
 9851
 9852        workspace.update_in(cx, |workspace, _window, cx| {
 9853            assert!(
 9854                !pane.read(cx).is_zoomed(),
 9855                "Pane should unzoom after ZoomOut"
 9856            );
 9857            assert!(
 9858                workspace.zoomed.is_none(),
 9859                "Workspace clears zoom tracking after ZoomOut"
 9860            );
 9861        });
 9862
 9863        // Zoom Out again is a no-op
 9864        pane.update_in(cx, |pane, window, cx| {
 9865            pane.zoom_out(&crate::ZoomOut, window, cx);
 9866        });
 9867
 9868        workspace.update_in(cx, |workspace, _window, cx| {
 9869            assert!(
 9870                !pane.read(cx).is_zoomed(),
 9871                "Second ZoomOut keeps pane unzoomed"
 9872            );
 9873            assert!(
 9874                workspace.zoomed.is_none(),
 9875                "Workspace remains without zoomed pane"
 9876            );
 9877        });
 9878    }
 9879
 9880    #[gpui::test]
 9881    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9882        init_test(cx);
 9883        let fs = FakeFs::new(cx.executor());
 9884
 9885        let project = Project::test(fs, [], cx).await;
 9886        let (workspace, cx) =
 9887            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9888        workspace.update_in(cx, |workspace, window, cx| {
 9889            // Open two docks
 9890            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9891            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9892
 9893            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9894            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9895
 9896            assert!(left_dock.read(cx).is_open());
 9897            assert!(right_dock.read(cx).is_open());
 9898        });
 9899
 9900        workspace.update_in(cx, |workspace, window, cx| {
 9901            // Toggle all docks - should close both
 9902            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9903
 9904            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9905            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9906            assert!(!left_dock.read(cx).is_open());
 9907            assert!(!right_dock.read(cx).is_open());
 9908        });
 9909
 9910        workspace.update_in(cx, |workspace, window, cx| {
 9911            // Toggle again - should reopen both
 9912            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9913
 9914            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9915            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9916            assert!(left_dock.read(cx).is_open());
 9917            assert!(right_dock.read(cx).is_open());
 9918        });
 9919    }
 9920
 9921    #[gpui::test]
 9922    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9923        init_test(cx);
 9924        let fs = FakeFs::new(cx.executor());
 9925
 9926        let project = Project::test(fs, [], cx).await;
 9927        let (workspace, cx) =
 9928            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9929        workspace.update_in(cx, |workspace, window, cx| {
 9930            // Open two docks
 9931            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9932            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9933
 9934            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9935            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9936
 9937            assert!(left_dock.read(cx).is_open());
 9938            assert!(right_dock.read(cx).is_open());
 9939        });
 9940
 9941        workspace.update_in(cx, |workspace, window, cx| {
 9942            // Close them manually
 9943            workspace.toggle_dock(DockPosition::Left, window, cx);
 9944            workspace.toggle_dock(DockPosition::Right, window, cx);
 9945
 9946            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9947            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9948            assert!(!left_dock.read(cx).is_open());
 9949            assert!(!right_dock.read(cx).is_open());
 9950        });
 9951
 9952        workspace.update_in(cx, |workspace, window, cx| {
 9953            // Toggle all docks - only last closed (right dock) should reopen
 9954            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9955
 9956            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9957            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9958            assert!(!left_dock.read(cx).is_open());
 9959            assert!(right_dock.read(cx).is_open());
 9960        });
 9961    }
 9962
 9963    #[gpui::test]
 9964    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9965        init_test(cx);
 9966        let fs = FakeFs::new(cx.executor());
 9967        let project = Project::test(fs, [], cx).await;
 9968        let (workspace, cx) =
 9969            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9970
 9971        // Open two docks (left and right) with one panel each
 9972        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9973            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9974            workspace.add_panel(left_panel.clone(), window, cx);
 9975
 9976            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9977            workspace.add_panel(right_panel.clone(), window, cx);
 9978
 9979            workspace.toggle_dock(DockPosition::Left, window, cx);
 9980            workspace.toggle_dock(DockPosition::Right, window, cx);
 9981
 9982            // Verify initial state
 9983            assert!(
 9984                workspace.left_dock().read(cx).is_open(),
 9985                "Left dock should be open"
 9986            );
 9987            assert_eq!(
 9988                workspace
 9989                    .left_dock()
 9990                    .read(cx)
 9991                    .visible_panel()
 9992                    .unwrap()
 9993                    .panel_id(),
 9994                left_panel.panel_id(),
 9995                "Left panel should be visible in left dock"
 9996            );
 9997            assert!(
 9998                workspace.right_dock().read(cx).is_open(),
 9999                "Right dock should be open"
10000            );
10001            assert_eq!(
10002                workspace
10003                    .right_dock()
10004                    .read(cx)
10005                    .visible_panel()
10006                    .unwrap()
10007                    .panel_id(),
10008                right_panel.panel_id(),
10009                "Right panel should be visible in right dock"
10010            );
10011            assert!(
10012                !workspace.bottom_dock().read(cx).is_open(),
10013                "Bottom dock should be closed"
10014            );
10015
10016            (left_panel, right_panel)
10017        });
10018
10019        // Focus the left panel and move it to the next position (bottom dock)
10020        workspace.update_in(cx, |workspace, window, cx| {
10021            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10022            assert!(
10023                left_panel.read(cx).focus_handle(cx).is_focused(window),
10024                "Left panel should be focused"
10025            );
10026        });
10027
10028        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10029
10030        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10031        workspace.update(cx, |workspace, cx| {
10032            assert!(
10033                !workspace.left_dock().read(cx).is_open(),
10034                "Left dock should be closed"
10035            );
10036            assert!(
10037                workspace.bottom_dock().read(cx).is_open(),
10038                "Bottom dock should now be open"
10039            );
10040            assert_eq!(
10041                left_panel.read(cx).position,
10042                DockPosition::Bottom,
10043                "Left panel should now be in the bottom dock"
10044            );
10045            assert_eq!(
10046                workspace
10047                    .bottom_dock()
10048                    .read(cx)
10049                    .visible_panel()
10050                    .unwrap()
10051                    .panel_id(),
10052                left_panel.panel_id(),
10053                "Left panel should be the visible panel in the bottom dock"
10054            );
10055        });
10056
10057        // Toggle all docks off
10058        workspace.update_in(cx, |workspace, window, cx| {
10059            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10060            assert!(
10061                !workspace.left_dock().read(cx).is_open(),
10062                "Left dock should be closed"
10063            );
10064            assert!(
10065                !workspace.right_dock().read(cx).is_open(),
10066                "Right dock should be closed"
10067            );
10068            assert!(
10069                !workspace.bottom_dock().read(cx).is_open(),
10070                "Bottom dock should be closed"
10071            );
10072        });
10073
10074        // Toggle all docks back on and verify positions are restored
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 remain closed"
10080            );
10081            assert!(
10082                workspace.right_dock().read(cx).is_open(),
10083                "Right dock should remain open"
10084            );
10085            assert!(
10086                workspace.bottom_dock().read(cx).is_open(),
10087                "Bottom dock should remain open"
10088            );
10089            assert_eq!(
10090                left_panel.read(cx).position,
10091                DockPosition::Bottom,
10092                "Left panel should remain in the bottom dock"
10093            );
10094            assert_eq!(
10095                right_panel.read(cx).position,
10096                DockPosition::Right,
10097                "Right panel should remain in the right dock"
10098            );
10099            assert_eq!(
10100                workspace
10101                    .bottom_dock()
10102                    .read(cx)
10103                    .visible_panel()
10104                    .unwrap()
10105                    .panel_id(),
10106                left_panel.panel_id(),
10107                "Left panel should be the visible panel in the right dock"
10108            );
10109        });
10110    }
10111
10112    #[gpui::test]
10113    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10114        init_test(cx);
10115
10116        let fs = FakeFs::new(cx.executor());
10117
10118        let project = Project::test(fs, None, cx).await;
10119        let (workspace, cx) =
10120            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10121
10122        // Let's arrange the panes like this:
10123        //
10124        // +-----------------------+
10125        // |         top           |
10126        // +------+--------+-------+
10127        // | left | center | right |
10128        // +------+--------+-------+
10129        // |        bottom         |
10130        // +-----------------------+
10131
10132        let top_item = cx.new(|cx| {
10133            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10134        });
10135        let bottom_item = cx.new(|cx| {
10136            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10137        });
10138        let left_item = cx.new(|cx| {
10139            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10140        });
10141        let right_item = cx.new(|cx| {
10142            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10143        });
10144        let center_item = cx.new(|cx| {
10145            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10146        });
10147
10148        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10149            let top_pane_id = workspace.active_pane().entity_id();
10150            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10151            workspace.split_pane(
10152                workspace.active_pane().clone(),
10153                SplitDirection::Down,
10154                window,
10155                cx,
10156            );
10157            top_pane_id
10158        });
10159        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10160            let bottom_pane_id = workspace.active_pane().entity_id();
10161            workspace.add_item_to_active_pane(
10162                Box::new(bottom_item.clone()),
10163                None,
10164                false,
10165                window,
10166                cx,
10167            );
10168            workspace.split_pane(
10169                workspace.active_pane().clone(),
10170                SplitDirection::Up,
10171                window,
10172                cx,
10173            );
10174            bottom_pane_id
10175        });
10176        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10177            let left_pane_id = workspace.active_pane().entity_id();
10178            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10179            workspace.split_pane(
10180                workspace.active_pane().clone(),
10181                SplitDirection::Right,
10182                window,
10183                cx,
10184            );
10185            left_pane_id
10186        });
10187        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10188            let right_pane_id = workspace.active_pane().entity_id();
10189            workspace.add_item_to_active_pane(
10190                Box::new(right_item.clone()),
10191                None,
10192                false,
10193                window,
10194                cx,
10195            );
10196            workspace.split_pane(
10197                workspace.active_pane().clone(),
10198                SplitDirection::Left,
10199                window,
10200                cx,
10201            );
10202            right_pane_id
10203        });
10204        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10205            let center_pane_id = workspace.active_pane().entity_id();
10206            workspace.add_item_to_active_pane(
10207                Box::new(center_item.clone()),
10208                None,
10209                false,
10210                window,
10211                cx,
10212            );
10213            center_pane_id
10214        });
10215        cx.executor().run_until_parked();
10216
10217        workspace.update_in(cx, |workspace, window, cx| {
10218            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10219
10220            // Join into next from center pane into right
10221            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10222        });
10223
10224        workspace.update_in(cx, |workspace, window, cx| {
10225            let active_pane = workspace.active_pane();
10226            assert_eq!(right_pane_id, active_pane.entity_id());
10227            assert_eq!(2, active_pane.read(cx).items_len());
10228            let item_ids_in_pane =
10229                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10230            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10231            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10232
10233            // Join into next from right pane into bottom
10234            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10235        });
10236
10237        workspace.update_in(cx, |workspace, window, cx| {
10238            let active_pane = workspace.active_pane();
10239            assert_eq!(bottom_pane_id, active_pane.entity_id());
10240            assert_eq!(3, active_pane.read(cx).items_len());
10241            let item_ids_in_pane =
10242                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10243            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10244            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10245            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10246
10247            // Join into next from bottom pane into left
10248            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10249        });
10250
10251        workspace.update_in(cx, |workspace, window, cx| {
10252            let active_pane = workspace.active_pane();
10253            assert_eq!(left_pane_id, active_pane.entity_id());
10254            assert_eq!(4, active_pane.read(cx).items_len());
10255            let item_ids_in_pane =
10256                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10257            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10258            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10259            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10260            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10261
10262            // Join into next from left pane into top
10263            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10264        });
10265
10266        workspace.update_in(cx, |workspace, window, cx| {
10267            let active_pane = workspace.active_pane();
10268            assert_eq!(top_pane_id, active_pane.entity_id());
10269            assert_eq!(5, active_pane.read(cx).items_len());
10270            let item_ids_in_pane =
10271                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10272            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10273            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10274            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10275            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10276            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10277
10278            // Single pane left: no-op
10279            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10280        });
10281
10282        workspace.update(cx, |workspace, _cx| {
10283            let active_pane = workspace.active_pane();
10284            assert_eq!(top_pane_id, active_pane.entity_id());
10285        });
10286    }
10287
10288    fn add_an_item_to_active_pane(
10289        cx: &mut VisualTestContext,
10290        workspace: &Entity<Workspace>,
10291        item_id: u64,
10292    ) -> Entity<TestItem> {
10293        let item = cx.new(|cx| {
10294            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10295                item_id,
10296                "item{item_id}.txt",
10297                cx,
10298            )])
10299        });
10300        workspace.update_in(cx, |workspace, window, cx| {
10301            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10302        });
10303        item
10304    }
10305
10306    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10307        workspace.update_in(cx, |workspace, window, cx| {
10308            workspace.split_pane(
10309                workspace.active_pane().clone(),
10310                SplitDirection::Right,
10311                window,
10312                cx,
10313            )
10314        })
10315    }
10316
10317    #[gpui::test]
10318    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10319        init_test(cx);
10320        let fs = FakeFs::new(cx.executor());
10321        let project = Project::test(fs, None, cx).await;
10322        let (workspace, cx) =
10323            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10324
10325        add_an_item_to_active_pane(cx, &workspace, 1);
10326        split_pane(cx, &workspace);
10327        add_an_item_to_active_pane(cx, &workspace, 2);
10328        split_pane(cx, &workspace); // empty pane
10329        split_pane(cx, &workspace);
10330        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10331
10332        cx.executor().run_until_parked();
10333
10334        workspace.update(cx, |workspace, cx| {
10335            let num_panes = workspace.panes().len();
10336            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10337            let active_item = workspace
10338                .active_pane()
10339                .read(cx)
10340                .active_item()
10341                .expect("item is in focus");
10342
10343            assert_eq!(num_panes, 4);
10344            assert_eq!(num_items_in_current_pane, 1);
10345            assert_eq!(active_item.item_id(), last_item.item_id());
10346        });
10347
10348        workspace.update_in(cx, |workspace, window, cx| {
10349            workspace.join_all_panes(window, cx);
10350        });
10351
10352        workspace.update(cx, |workspace, cx| {
10353            let num_panes = workspace.panes().len();
10354            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10355            let active_item = workspace
10356                .active_pane()
10357                .read(cx)
10358                .active_item()
10359                .expect("item is in focus");
10360
10361            assert_eq!(num_panes, 1);
10362            assert_eq!(num_items_in_current_pane, 3);
10363            assert_eq!(active_item.item_id(), last_item.item_id());
10364        });
10365    }
10366    struct TestModal(FocusHandle);
10367
10368    impl TestModal {
10369        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10370            Self(cx.focus_handle())
10371        }
10372    }
10373
10374    impl EventEmitter<DismissEvent> for TestModal {}
10375
10376    impl Focusable for TestModal {
10377        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10378            self.0.clone()
10379        }
10380    }
10381
10382    impl ModalView for TestModal {}
10383
10384    impl Render for TestModal {
10385        fn render(
10386            &mut self,
10387            _window: &mut Window,
10388            _cx: &mut Context<TestModal>,
10389        ) -> impl IntoElement {
10390            div().track_focus(&self.0)
10391        }
10392    }
10393
10394    #[gpui::test]
10395    async fn test_panels(cx: &mut gpui::TestAppContext) {
10396        init_test(cx);
10397        let fs = FakeFs::new(cx.executor());
10398
10399        let project = Project::test(fs, [], cx).await;
10400        let (workspace, cx) =
10401            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10402
10403        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10404            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10405            workspace.add_panel(panel_1.clone(), window, cx);
10406            workspace.toggle_dock(DockPosition::Left, window, cx);
10407            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10408            workspace.add_panel(panel_2.clone(), window, cx);
10409            workspace.toggle_dock(DockPosition::Right, window, cx);
10410
10411            let left_dock = workspace.left_dock();
10412            assert_eq!(
10413                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10414                panel_1.panel_id()
10415            );
10416            assert_eq!(
10417                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10418                panel_1.size(window, cx)
10419            );
10420
10421            left_dock.update(cx, |left_dock, cx| {
10422                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10423            });
10424            assert_eq!(
10425                workspace
10426                    .right_dock()
10427                    .read(cx)
10428                    .visible_panel()
10429                    .unwrap()
10430                    .panel_id(),
10431                panel_2.panel_id(),
10432            );
10433
10434            (panel_1, panel_2)
10435        });
10436
10437        // Move panel_1 to the right
10438        panel_1.update_in(cx, |panel_1, window, cx| {
10439            panel_1.set_position(DockPosition::Right, window, cx)
10440        });
10441
10442        workspace.update_in(cx, |workspace, window, cx| {
10443            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10444            // Since it was the only panel on the left, the left dock should now be closed.
10445            assert!(!workspace.left_dock().read(cx).is_open());
10446            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10447            let right_dock = workspace.right_dock();
10448            assert_eq!(
10449                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10450                panel_1.panel_id()
10451            );
10452            assert_eq!(
10453                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10454                px(1337.)
10455            );
10456
10457            // Now we move panel_2 to the left
10458            panel_2.set_position(DockPosition::Left, window, cx);
10459        });
10460
10461        workspace.update(cx, |workspace, cx| {
10462            // Since panel_2 was not visible on the right, we don't open the left dock.
10463            assert!(!workspace.left_dock().read(cx).is_open());
10464            // And the right dock is unaffected in its displaying of panel_1
10465            assert!(workspace.right_dock().read(cx).is_open());
10466            assert_eq!(
10467                workspace
10468                    .right_dock()
10469                    .read(cx)
10470                    .visible_panel()
10471                    .unwrap()
10472                    .panel_id(),
10473                panel_1.panel_id(),
10474            );
10475        });
10476
10477        // Move panel_1 back to the left
10478        panel_1.update_in(cx, |panel_1, window, cx| {
10479            panel_1.set_position(DockPosition::Left, window, cx)
10480        });
10481
10482        workspace.update_in(cx, |workspace, window, cx| {
10483            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10484            let left_dock = workspace.left_dock();
10485            assert!(left_dock.read(cx).is_open());
10486            assert_eq!(
10487                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10488                panel_1.panel_id()
10489            );
10490            assert_eq!(
10491                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10492                px(1337.)
10493            );
10494            // And the right dock should be closed as it no longer has any panels.
10495            assert!(!workspace.right_dock().read(cx).is_open());
10496
10497            // Now we move panel_1 to the bottom
10498            panel_1.set_position(DockPosition::Bottom, window, cx);
10499        });
10500
10501        workspace.update_in(cx, |workspace, window, cx| {
10502            // Since panel_1 was visible on the left, we close the left dock.
10503            assert!(!workspace.left_dock().read(cx).is_open());
10504            // The bottom dock is sized based on the panel's default size,
10505            // since the panel orientation changed from vertical to horizontal.
10506            let bottom_dock = workspace.bottom_dock();
10507            assert_eq!(
10508                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10509                panel_1.size(window, cx),
10510            );
10511            // Close bottom dock and move panel_1 back to the left.
10512            bottom_dock.update(cx, |bottom_dock, cx| {
10513                bottom_dock.set_open(false, window, cx)
10514            });
10515            panel_1.set_position(DockPosition::Left, window, cx);
10516        });
10517
10518        // Emit activated event on panel 1
10519        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10520
10521        // Now the left dock is open and panel_1 is active and focused.
10522        workspace.update_in(cx, |workspace, window, cx| {
10523            let left_dock = workspace.left_dock();
10524            assert!(left_dock.read(cx).is_open());
10525            assert_eq!(
10526                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10527                panel_1.panel_id(),
10528            );
10529            assert!(panel_1.focus_handle(cx).is_focused(window));
10530        });
10531
10532        // Emit closed event on panel 2, which is not active
10533        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10534
10535        // Wo don't close the left dock, because panel_2 wasn't the active panel
10536        workspace.update(cx, |workspace, cx| {
10537            let left_dock = workspace.left_dock();
10538            assert!(left_dock.read(cx).is_open());
10539            assert_eq!(
10540                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10541                panel_1.panel_id(),
10542            );
10543        });
10544
10545        // Emitting a ZoomIn event shows the panel as zoomed.
10546        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10547        workspace.read_with(cx, |workspace, _| {
10548            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10549            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10550        });
10551
10552        // Move panel to another dock while it is zoomed
10553        panel_1.update_in(cx, |panel, window, cx| {
10554            panel.set_position(DockPosition::Right, window, cx)
10555        });
10556        workspace.read_with(cx, |workspace, _| {
10557            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10558
10559            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10560        });
10561
10562        // This is a helper for getting a:
10563        // - valid focus on an element,
10564        // - that isn't a part of the panes and panels system of the Workspace,
10565        // - and doesn't trigger the 'on_focus_lost' API.
10566        let focus_other_view = {
10567            let workspace = workspace.clone();
10568            move |cx: &mut VisualTestContext| {
10569                workspace.update_in(cx, |workspace, window, cx| {
10570                    if workspace.active_modal::<TestModal>(cx).is_some() {
10571                        workspace.toggle_modal(window, cx, TestModal::new);
10572                        workspace.toggle_modal(window, cx, TestModal::new);
10573                    } else {
10574                        workspace.toggle_modal(window, cx, TestModal::new);
10575                    }
10576                })
10577            }
10578        };
10579
10580        // If focus is transferred to another view that's not a panel or another pane, we still show
10581        // the panel as zoomed.
10582        focus_other_view(cx);
10583        workspace.read_with(cx, |workspace, _| {
10584            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10585            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10586        });
10587
10588        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10589        workspace.update_in(cx, |_workspace, window, cx| {
10590            cx.focus_self(window);
10591        });
10592        workspace.read_with(cx, |workspace, _| {
10593            assert_eq!(workspace.zoomed, None);
10594            assert_eq!(workspace.zoomed_position, None);
10595        });
10596
10597        // If focus is transferred again to another view that's not a panel or a pane, we won't
10598        // show the panel as zoomed because it wasn't zoomed before.
10599        focus_other_view(cx);
10600        workspace.read_with(cx, |workspace, _| {
10601            assert_eq!(workspace.zoomed, None);
10602            assert_eq!(workspace.zoomed_position, None);
10603        });
10604
10605        // When the panel is activated, it is zoomed again.
10606        cx.dispatch_action(ToggleRightDock);
10607        workspace.read_with(cx, |workspace, _| {
10608            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10609            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10610        });
10611
10612        // Emitting a ZoomOut event unzooms the panel.
10613        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10614        workspace.read_with(cx, |workspace, _| {
10615            assert_eq!(workspace.zoomed, None);
10616            assert_eq!(workspace.zoomed_position, None);
10617        });
10618
10619        // Emit closed event on panel 1, which is active
10620        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10621
10622        // Now the left dock is closed, because panel_1 was the active panel
10623        workspace.update(cx, |workspace, cx| {
10624            let right_dock = workspace.right_dock();
10625            assert!(!right_dock.read(cx).is_open());
10626        });
10627    }
10628
10629    #[gpui::test]
10630    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10631        init_test(cx);
10632
10633        let fs = FakeFs::new(cx.background_executor.clone());
10634        let project = Project::test(fs, [], cx).await;
10635        let (workspace, cx) =
10636            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10637        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10638
10639        let dirty_regular_buffer = cx.new(|cx| {
10640            TestItem::new(cx)
10641                .with_dirty(true)
10642                .with_label("1.txt")
10643                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10644        });
10645        let dirty_regular_buffer_2 = cx.new(|cx| {
10646            TestItem::new(cx)
10647                .with_dirty(true)
10648                .with_label("2.txt")
10649                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10650        });
10651        let dirty_multi_buffer_with_both = cx.new(|cx| {
10652            TestItem::new(cx)
10653                .with_dirty(true)
10654                .with_buffer_kind(ItemBufferKind::Multibuffer)
10655                .with_label("Fake Project Search")
10656                .with_project_items(&[
10657                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10658                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10659                ])
10660        });
10661        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10662        workspace.update_in(cx, |workspace, window, cx| {
10663            workspace.add_item(
10664                pane.clone(),
10665                Box::new(dirty_regular_buffer.clone()),
10666                None,
10667                false,
10668                false,
10669                window,
10670                cx,
10671            );
10672            workspace.add_item(
10673                pane.clone(),
10674                Box::new(dirty_regular_buffer_2.clone()),
10675                None,
10676                false,
10677                false,
10678                window,
10679                cx,
10680            );
10681            workspace.add_item(
10682                pane.clone(),
10683                Box::new(dirty_multi_buffer_with_both.clone()),
10684                None,
10685                false,
10686                false,
10687                window,
10688                cx,
10689            );
10690        });
10691
10692        pane.update_in(cx, |pane, window, cx| {
10693            pane.activate_item(2, true, true, window, cx);
10694            assert_eq!(
10695                pane.active_item().unwrap().item_id(),
10696                multi_buffer_with_both_files_id,
10697                "Should select the multi buffer in the pane"
10698            );
10699        });
10700        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10701            pane.close_other_items(
10702                &CloseOtherItems {
10703                    save_intent: Some(SaveIntent::Save),
10704                    close_pinned: true,
10705                },
10706                None,
10707                window,
10708                cx,
10709            )
10710        });
10711        cx.background_executor.run_until_parked();
10712        assert!(!cx.has_pending_prompt());
10713        close_all_but_multi_buffer_task
10714            .await
10715            .expect("Closing all buffers but the multi buffer failed");
10716        pane.update(cx, |pane, cx| {
10717            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10718            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10719            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10720            assert_eq!(pane.items_len(), 1);
10721            assert_eq!(
10722                pane.active_item().unwrap().item_id(),
10723                multi_buffer_with_both_files_id,
10724                "Should have only the multi buffer left in the pane"
10725            );
10726            assert!(
10727                dirty_multi_buffer_with_both.read(cx).is_dirty,
10728                "The multi buffer containing the unsaved buffer should still be dirty"
10729            );
10730        });
10731
10732        dirty_regular_buffer.update(cx, |buffer, cx| {
10733            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10734        });
10735
10736        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10737            pane.close_active_item(
10738                &CloseActiveItem {
10739                    save_intent: Some(SaveIntent::Close),
10740                    close_pinned: false,
10741                },
10742                window,
10743                cx,
10744            )
10745        });
10746        cx.background_executor.run_until_parked();
10747        assert!(
10748            cx.has_pending_prompt(),
10749            "Dirty multi buffer should prompt a save dialog"
10750        );
10751        cx.simulate_prompt_answer("Save");
10752        cx.background_executor.run_until_parked();
10753        close_multi_buffer_task
10754            .await
10755            .expect("Closing the multi buffer failed");
10756        pane.update(cx, |pane, cx| {
10757            assert_eq!(
10758                dirty_multi_buffer_with_both.read(cx).save_count,
10759                1,
10760                "Multi buffer item should get be saved"
10761            );
10762            // Test impl does not save inner items, so we do not assert them
10763            assert_eq!(
10764                pane.items_len(),
10765                0,
10766                "No more items should be left in the pane"
10767            );
10768            assert!(pane.active_item().is_none());
10769        });
10770    }
10771
10772    #[gpui::test]
10773    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10774        cx: &mut TestAppContext,
10775    ) {
10776        init_test(cx);
10777
10778        let fs = FakeFs::new(cx.background_executor.clone());
10779        let project = Project::test(fs, [], cx).await;
10780        let (workspace, cx) =
10781            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10782        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10783
10784        let dirty_regular_buffer = cx.new(|cx| {
10785            TestItem::new(cx)
10786                .with_dirty(true)
10787                .with_label("1.txt")
10788                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10789        });
10790        let dirty_regular_buffer_2 = cx.new(|cx| {
10791            TestItem::new(cx)
10792                .with_dirty(true)
10793                .with_label("2.txt")
10794                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10795        });
10796        let clear_regular_buffer = cx.new(|cx| {
10797            TestItem::new(cx)
10798                .with_label("3.txt")
10799                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10800        });
10801
10802        let dirty_multi_buffer_with_both = cx.new(|cx| {
10803            TestItem::new(cx)
10804                .with_dirty(true)
10805                .with_buffer_kind(ItemBufferKind::Multibuffer)
10806                .with_label("Fake Project Search")
10807                .with_project_items(&[
10808                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10809                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10810                    clear_regular_buffer.read(cx).project_items[0].clone(),
10811                ])
10812        });
10813        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10814        workspace.update_in(cx, |workspace, window, cx| {
10815            workspace.add_item(
10816                pane.clone(),
10817                Box::new(dirty_regular_buffer.clone()),
10818                None,
10819                false,
10820                false,
10821                window,
10822                cx,
10823            );
10824            workspace.add_item(
10825                pane.clone(),
10826                Box::new(dirty_multi_buffer_with_both.clone()),
10827                None,
10828                false,
10829                false,
10830                window,
10831                cx,
10832            );
10833        });
10834
10835        pane.update_in(cx, |pane, window, cx| {
10836            pane.activate_item(1, true, true, window, cx);
10837            assert_eq!(
10838                pane.active_item().unwrap().item_id(),
10839                multi_buffer_with_both_files_id,
10840                "Should select the multi buffer in the pane"
10841            );
10842        });
10843        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10844            pane.close_active_item(
10845                &CloseActiveItem {
10846                    save_intent: None,
10847                    close_pinned: false,
10848                },
10849                window,
10850                cx,
10851            )
10852        });
10853        cx.background_executor.run_until_parked();
10854        assert!(
10855            cx.has_pending_prompt(),
10856            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10857        );
10858    }
10859
10860    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10861    /// closed when they are deleted from disk.
10862    #[gpui::test]
10863    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10864        init_test(cx);
10865
10866        // Enable the close_on_disk_deletion setting
10867        cx.update_global(|store: &mut SettingsStore, cx| {
10868            store.update_user_settings(cx, |settings| {
10869                settings.workspace.close_on_file_delete = Some(true);
10870            });
10871        });
10872
10873        let fs = FakeFs::new(cx.background_executor.clone());
10874        let project = Project::test(fs, [], cx).await;
10875        let (workspace, cx) =
10876            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10877        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10878
10879        // Create a test item that simulates a file
10880        let item = cx.new(|cx| {
10881            TestItem::new(cx)
10882                .with_label("test.txt")
10883                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10884        });
10885
10886        // Add item to workspace
10887        workspace.update_in(cx, |workspace, window, cx| {
10888            workspace.add_item(
10889                pane.clone(),
10890                Box::new(item.clone()),
10891                None,
10892                false,
10893                false,
10894                window,
10895                cx,
10896            );
10897        });
10898
10899        // Verify the item is in the pane
10900        pane.read_with(cx, |pane, _| {
10901            assert_eq!(pane.items().count(), 1);
10902        });
10903
10904        // Simulate file deletion by setting the item's deleted state
10905        item.update(cx, |item, _| {
10906            item.set_has_deleted_file(true);
10907        });
10908
10909        // Emit UpdateTab event to trigger the close behavior
10910        cx.run_until_parked();
10911        item.update(cx, |_, cx| {
10912            cx.emit(ItemEvent::UpdateTab);
10913        });
10914
10915        // Allow the close operation to complete
10916        cx.run_until_parked();
10917
10918        // Verify the item was automatically closed
10919        pane.read_with(cx, |pane, _| {
10920            assert_eq!(
10921                pane.items().count(),
10922                0,
10923                "Item should be automatically closed when file is deleted"
10924            );
10925        });
10926    }
10927
10928    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10929    /// open with a strikethrough when they are deleted from disk.
10930    #[gpui::test]
10931    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10932        init_test(cx);
10933
10934        // Ensure close_on_disk_deletion is disabled (default)
10935        cx.update_global(|store: &mut SettingsStore, cx| {
10936            store.update_user_settings(cx, |settings| {
10937                settings.workspace.close_on_file_delete = Some(false);
10938            });
10939        });
10940
10941        let fs = FakeFs::new(cx.background_executor.clone());
10942        let project = Project::test(fs, [], cx).await;
10943        let (workspace, cx) =
10944            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10945        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10946
10947        // Create a test item that simulates a file
10948        let item = cx.new(|cx| {
10949            TestItem::new(cx)
10950                .with_label("test.txt")
10951                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10952        });
10953
10954        // Add item to workspace
10955        workspace.update_in(cx, |workspace, window, cx| {
10956            workspace.add_item(
10957                pane.clone(),
10958                Box::new(item.clone()),
10959                None,
10960                false,
10961                false,
10962                window,
10963                cx,
10964            );
10965        });
10966
10967        // Verify the item is in the pane
10968        pane.read_with(cx, |pane, _| {
10969            assert_eq!(pane.items().count(), 1);
10970        });
10971
10972        // Simulate file deletion
10973        item.update(cx, |item, _| {
10974            item.set_has_deleted_file(true);
10975        });
10976
10977        // Emit UpdateTab event
10978        cx.run_until_parked();
10979        item.update(cx, |_, cx| {
10980            cx.emit(ItemEvent::UpdateTab);
10981        });
10982
10983        // Allow any potential close operation to complete
10984        cx.run_until_parked();
10985
10986        // Verify the item remains open (with strikethrough)
10987        pane.read_with(cx, |pane, _| {
10988            assert_eq!(
10989                pane.items().count(),
10990                1,
10991                "Item should remain open when close_on_disk_deletion is disabled"
10992            );
10993        });
10994
10995        // Verify the item shows as deleted
10996        item.read_with(cx, |item, _| {
10997            assert!(
10998                item.has_deleted_file,
10999                "Item should be marked as having deleted file"
11000            );
11001        });
11002    }
11003
11004    /// Tests that dirty files are not automatically closed when deleted from disk,
11005    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11006    /// unsaved changes without being prompted.
11007    #[gpui::test]
11008    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11009        init_test(cx);
11010
11011        // Enable the close_on_file_delete setting
11012        cx.update_global(|store: &mut SettingsStore, cx| {
11013            store.update_user_settings(cx, |settings| {
11014                settings.workspace.close_on_file_delete = Some(true);
11015            });
11016        });
11017
11018        let fs = FakeFs::new(cx.background_executor.clone());
11019        let project = Project::test(fs, [], cx).await;
11020        let (workspace, cx) =
11021            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11022        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11023
11024        // Create a dirty test item
11025        let item = cx.new(|cx| {
11026            TestItem::new(cx)
11027                .with_dirty(true)
11028                .with_label("test.txt")
11029                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11030        });
11031
11032        // Add item to workspace
11033        workspace.update_in(cx, |workspace, window, cx| {
11034            workspace.add_item(
11035                pane.clone(),
11036                Box::new(item.clone()),
11037                None,
11038                false,
11039                false,
11040                window,
11041                cx,
11042            );
11043        });
11044
11045        // Simulate file deletion
11046        item.update(cx, |item, _| {
11047            item.set_has_deleted_file(true);
11048        });
11049
11050        // Emit UpdateTab event to trigger the close behavior
11051        cx.run_until_parked();
11052        item.update(cx, |_, cx| {
11053            cx.emit(ItemEvent::UpdateTab);
11054        });
11055
11056        // Allow any potential close operation to complete
11057        cx.run_until_parked();
11058
11059        // Verify the item remains open (dirty files are not auto-closed)
11060        pane.read_with(cx, |pane, _| {
11061            assert_eq!(
11062                pane.items().count(),
11063                1,
11064                "Dirty items should not be automatically closed even when file is deleted"
11065            );
11066        });
11067
11068        // Verify the item is marked as deleted and still dirty
11069        item.read_with(cx, |item, _| {
11070            assert!(
11071                item.has_deleted_file,
11072                "Item should be marked as having deleted file"
11073            );
11074            assert!(item.is_dirty, "Item should still be dirty");
11075        });
11076    }
11077
11078    /// Tests that navigation history is cleaned up when files are auto-closed
11079    /// due to deletion from disk.
11080    #[gpui::test]
11081    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11082        init_test(cx);
11083
11084        // Enable the close_on_file_delete setting
11085        cx.update_global(|store: &mut SettingsStore, cx| {
11086            store.update_user_settings(cx, |settings| {
11087                settings.workspace.close_on_file_delete = Some(true);
11088            });
11089        });
11090
11091        let fs = FakeFs::new(cx.background_executor.clone());
11092        let project = Project::test(fs, [], cx).await;
11093        let (workspace, cx) =
11094            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11095        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11096
11097        // Create test items
11098        let item1 = cx.new(|cx| {
11099            TestItem::new(cx)
11100                .with_label("test1.txt")
11101                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11102        });
11103        let item1_id = item1.item_id();
11104
11105        let item2 = cx.new(|cx| {
11106            TestItem::new(cx)
11107                .with_label("test2.txt")
11108                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11109        });
11110
11111        // Add items to workspace
11112        workspace.update_in(cx, |workspace, window, cx| {
11113            workspace.add_item(
11114                pane.clone(),
11115                Box::new(item1.clone()),
11116                None,
11117                false,
11118                false,
11119                window,
11120                cx,
11121            );
11122            workspace.add_item(
11123                pane.clone(),
11124                Box::new(item2.clone()),
11125                None,
11126                false,
11127                false,
11128                window,
11129                cx,
11130            );
11131        });
11132
11133        // Activate item1 to ensure it gets navigation entries
11134        pane.update_in(cx, |pane, window, cx| {
11135            pane.activate_item(0, true, true, window, cx);
11136        });
11137
11138        // Switch to item2 and back to create navigation history
11139        pane.update_in(cx, |pane, window, cx| {
11140            pane.activate_item(1, true, true, window, cx);
11141        });
11142        cx.run_until_parked();
11143
11144        pane.update_in(cx, |pane, window, cx| {
11145            pane.activate_item(0, true, true, window, cx);
11146        });
11147        cx.run_until_parked();
11148
11149        // Simulate file deletion for item1
11150        item1.update(cx, |item, _| {
11151            item.set_has_deleted_file(true);
11152        });
11153
11154        // Emit UpdateTab event to trigger the close behavior
11155        item1.update(cx, |_, cx| {
11156            cx.emit(ItemEvent::UpdateTab);
11157        });
11158        cx.run_until_parked();
11159
11160        // Verify item1 was closed
11161        pane.read_with(cx, |pane, _| {
11162            assert_eq!(
11163                pane.items().count(),
11164                1,
11165                "Should have 1 item remaining after auto-close"
11166            );
11167        });
11168
11169        // Check navigation history after close
11170        let has_item = pane.read_with(cx, |pane, cx| {
11171            let mut has_item = false;
11172            pane.nav_history().for_each_entry(cx, |entry, _| {
11173                if entry.item.id() == item1_id {
11174                    has_item = true;
11175                }
11176            });
11177            has_item
11178        });
11179
11180        assert!(
11181            !has_item,
11182            "Navigation history should not contain closed item entries"
11183        );
11184    }
11185
11186    #[gpui::test]
11187    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11188        cx: &mut TestAppContext,
11189    ) {
11190        init_test(cx);
11191
11192        let fs = FakeFs::new(cx.background_executor.clone());
11193        let project = Project::test(fs, [], cx).await;
11194        let (workspace, cx) =
11195            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11196        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11197
11198        let dirty_regular_buffer = cx.new(|cx| {
11199            TestItem::new(cx)
11200                .with_dirty(true)
11201                .with_label("1.txt")
11202                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11203        });
11204        let dirty_regular_buffer_2 = cx.new(|cx| {
11205            TestItem::new(cx)
11206                .with_dirty(true)
11207                .with_label("2.txt")
11208                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11209        });
11210        let clear_regular_buffer = cx.new(|cx| {
11211            TestItem::new(cx)
11212                .with_label("3.txt")
11213                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11214        });
11215
11216        let dirty_multi_buffer = cx.new(|cx| {
11217            TestItem::new(cx)
11218                .with_dirty(true)
11219                .with_buffer_kind(ItemBufferKind::Multibuffer)
11220                .with_label("Fake Project Search")
11221                .with_project_items(&[
11222                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11223                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11224                    clear_regular_buffer.read(cx).project_items[0].clone(),
11225                ])
11226        });
11227        workspace.update_in(cx, |workspace, window, cx| {
11228            workspace.add_item(
11229                pane.clone(),
11230                Box::new(dirty_regular_buffer.clone()),
11231                None,
11232                false,
11233                false,
11234                window,
11235                cx,
11236            );
11237            workspace.add_item(
11238                pane.clone(),
11239                Box::new(dirty_regular_buffer_2.clone()),
11240                None,
11241                false,
11242                false,
11243                window,
11244                cx,
11245            );
11246            workspace.add_item(
11247                pane.clone(),
11248                Box::new(dirty_multi_buffer.clone()),
11249                None,
11250                false,
11251                false,
11252                window,
11253                cx,
11254            );
11255        });
11256
11257        pane.update_in(cx, |pane, window, cx| {
11258            pane.activate_item(2, true, true, window, cx);
11259            assert_eq!(
11260                pane.active_item().unwrap().item_id(),
11261                dirty_multi_buffer.item_id(),
11262                "Should select the multi buffer in the pane"
11263            );
11264        });
11265        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11266            pane.close_active_item(
11267                &CloseActiveItem {
11268                    save_intent: None,
11269                    close_pinned: false,
11270                },
11271                window,
11272                cx,
11273            )
11274        });
11275        cx.background_executor.run_until_parked();
11276        assert!(
11277            !cx.has_pending_prompt(),
11278            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11279        );
11280        close_multi_buffer_task
11281            .await
11282            .expect("Closing multi buffer failed");
11283        pane.update(cx, |pane, cx| {
11284            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11285            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11286            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11287            assert_eq!(
11288                pane.items()
11289                    .map(|item| item.item_id())
11290                    .sorted()
11291                    .collect::<Vec<_>>(),
11292                vec![
11293                    dirty_regular_buffer.item_id(),
11294                    dirty_regular_buffer_2.item_id(),
11295                ],
11296                "Should have no multi buffer left in the pane"
11297            );
11298            assert!(dirty_regular_buffer.read(cx).is_dirty);
11299            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11300        });
11301    }
11302
11303    #[gpui::test]
11304    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11305        init_test(cx);
11306        let fs = FakeFs::new(cx.executor());
11307        let project = Project::test(fs, [], cx).await;
11308        let (workspace, cx) =
11309            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11310
11311        // Add a new panel to the right dock, opening the dock and setting the
11312        // focus to the new panel.
11313        let panel = workspace.update_in(cx, |workspace, window, cx| {
11314            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11315            workspace.add_panel(panel.clone(), window, cx);
11316
11317            workspace
11318                .right_dock()
11319                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11320
11321            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11322
11323            panel
11324        });
11325
11326        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11327        // panel to the next valid position which, in this case, is the left
11328        // dock.
11329        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11330        workspace.update(cx, |workspace, cx| {
11331            assert!(workspace.left_dock().read(cx).is_open());
11332            assert_eq!(panel.read(cx).position, DockPosition::Left);
11333        });
11334
11335        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11336        // panel to the next valid position which, in this case, is the bottom
11337        // dock.
11338        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11339        workspace.update(cx, |workspace, cx| {
11340            assert!(workspace.bottom_dock().read(cx).is_open());
11341            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11342        });
11343
11344        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11345        // around moving the panel to its initial position, the right dock.
11346        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11347        workspace.update(cx, |workspace, cx| {
11348            assert!(workspace.right_dock().read(cx).is_open());
11349            assert_eq!(panel.read(cx).position, DockPosition::Right);
11350        });
11351
11352        // Remove focus from the panel, ensuring that, if the panel is not
11353        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11354        // the panel's position, so the panel is still in the right dock.
11355        workspace.update_in(cx, |workspace, window, cx| {
11356            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11357        });
11358
11359        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11360        workspace.update(cx, |workspace, cx| {
11361            assert!(workspace.right_dock().read(cx).is_open());
11362            assert_eq!(panel.read(cx).position, DockPosition::Right);
11363        });
11364    }
11365
11366    #[gpui::test]
11367    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11368        init_test(cx);
11369
11370        let fs = FakeFs::new(cx.executor());
11371        let project = Project::test(fs, [], cx).await;
11372        let (workspace, cx) =
11373            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11374
11375        let item_1 = cx.new(|cx| {
11376            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11377        });
11378        workspace.update_in(cx, |workspace, window, cx| {
11379            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11380            workspace.move_item_to_pane_in_direction(
11381                &MoveItemToPaneInDirection {
11382                    direction: SplitDirection::Right,
11383                    focus: true,
11384                    clone: false,
11385                },
11386                window,
11387                cx,
11388            );
11389            workspace.move_item_to_pane_at_index(
11390                &MoveItemToPane {
11391                    destination: 3,
11392                    focus: true,
11393                    clone: false,
11394                },
11395                window,
11396                cx,
11397            );
11398
11399            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11400            assert_eq!(
11401                pane_items_paths(&workspace.active_pane, cx),
11402                vec!["first.txt".to_string()],
11403                "Single item was not moved anywhere"
11404            );
11405        });
11406
11407        let item_2 = cx.new(|cx| {
11408            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11409        });
11410        workspace.update_in(cx, |workspace, window, cx| {
11411            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11412            assert_eq!(
11413                pane_items_paths(&workspace.panes[0], cx),
11414                vec!["first.txt".to_string(), "second.txt".to_string()],
11415            );
11416            workspace.move_item_to_pane_in_direction(
11417                &MoveItemToPaneInDirection {
11418                    direction: SplitDirection::Right,
11419                    focus: true,
11420                    clone: false,
11421                },
11422                window,
11423                cx,
11424            );
11425
11426            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11427            assert_eq!(
11428                pane_items_paths(&workspace.panes[0], cx),
11429                vec!["first.txt".to_string()],
11430                "After moving, one item should be left in the original pane"
11431            );
11432            assert_eq!(
11433                pane_items_paths(&workspace.panes[1], cx),
11434                vec!["second.txt".to_string()],
11435                "New item should have been moved to the new pane"
11436            );
11437        });
11438
11439        let item_3 = cx.new(|cx| {
11440            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11441        });
11442        workspace.update_in(cx, |workspace, window, cx| {
11443            let original_pane = workspace.panes[0].clone();
11444            workspace.set_active_pane(&original_pane, window, cx);
11445            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11446            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11447            assert_eq!(
11448                pane_items_paths(&workspace.active_pane, cx),
11449                vec!["first.txt".to_string(), "third.txt".to_string()],
11450                "New pane should be ready to move one item out"
11451            );
11452
11453            workspace.move_item_to_pane_at_index(
11454                &MoveItemToPane {
11455                    destination: 3,
11456                    focus: true,
11457                    clone: false,
11458                },
11459                window,
11460                cx,
11461            );
11462            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11463            assert_eq!(
11464                pane_items_paths(&workspace.active_pane, cx),
11465                vec!["first.txt".to_string()],
11466                "After moving, one item should be left in the original pane"
11467            );
11468            assert_eq!(
11469                pane_items_paths(&workspace.panes[1], cx),
11470                vec!["second.txt".to_string()],
11471                "Previously created pane should be unchanged"
11472            );
11473            assert_eq!(
11474                pane_items_paths(&workspace.panes[2], cx),
11475                vec!["third.txt".to_string()],
11476                "New item should have been moved to the new pane"
11477            );
11478        });
11479    }
11480
11481    #[gpui::test]
11482    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11483        init_test(cx);
11484
11485        let fs = FakeFs::new(cx.executor());
11486        let project = Project::test(fs, [], cx).await;
11487        let (workspace, cx) =
11488            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11489
11490        let item_1 = cx.new(|cx| {
11491            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11492        });
11493        workspace.update_in(cx, |workspace, window, cx| {
11494            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11495            workspace.move_item_to_pane_in_direction(
11496                &MoveItemToPaneInDirection {
11497                    direction: SplitDirection::Right,
11498                    focus: true,
11499                    clone: true,
11500                },
11501                window,
11502                cx,
11503            );
11504            workspace.move_item_to_pane_at_index(
11505                &MoveItemToPane {
11506                    destination: 3,
11507                    focus: true,
11508                    clone: true,
11509                },
11510                window,
11511                cx,
11512            );
11513        });
11514        cx.run_until_parked();
11515
11516        workspace.update(cx, |workspace, cx| {
11517            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11518            for pane in workspace.panes() {
11519                assert_eq!(
11520                    pane_items_paths(pane, cx),
11521                    vec!["first.txt".to_string()],
11522                    "Single item exists in all panes"
11523                );
11524            }
11525        });
11526
11527        // verify that the active pane has been updated after waiting for the
11528        // pane focus event to fire and resolve
11529        workspace.read_with(cx, |workspace, _app| {
11530            assert_eq!(
11531                workspace.active_pane(),
11532                &workspace.panes[2],
11533                "The third pane should be the active one: {:?}",
11534                workspace.panes
11535            );
11536        })
11537    }
11538
11539    mod register_project_item_tests {
11540
11541        use super::*;
11542
11543        // View
11544        struct TestPngItemView {
11545            focus_handle: FocusHandle,
11546        }
11547        // Model
11548        struct TestPngItem {}
11549
11550        impl project::ProjectItem for TestPngItem {
11551            fn try_open(
11552                _project: &Entity<Project>,
11553                path: &ProjectPath,
11554                cx: &mut App,
11555            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11556                if path.path.extension().unwrap() == "png" {
11557                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11558                } else {
11559                    None
11560                }
11561            }
11562
11563            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11564                None
11565            }
11566
11567            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11568                None
11569            }
11570
11571            fn is_dirty(&self) -> bool {
11572                false
11573            }
11574        }
11575
11576        impl Item for TestPngItemView {
11577            type Event = ();
11578            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11579                "".into()
11580            }
11581        }
11582        impl EventEmitter<()> for TestPngItemView {}
11583        impl Focusable for TestPngItemView {
11584            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11585                self.focus_handle.clone()
11586            }
11587        }
11588
11589        impl Render for TestPngItemView {
11590            fn render(
11591                &mut self,
11592                _window: &mut Window,
11593                _cx: &mut Context<Self>,
11594            ) -> impl IntoElement {
11595                Empty
11596            }
11597        }
11598
11599        impl ProjectItem for TestPngItemView {
11600            type Item = TestPngItem;
11601
11602            fn for_project_item(
11603                _project: Entity<Project>,
11604                _pane: Option<&Pane>,
11605                _item: Entity<Self::Item>,
11606                _: &mut Window,
11607                cx: &mut Context<Self>,
11608            ) -> Self
11609            where
11610                Self: Sized,
11611            {
11612                Self {
11613                    focus_handle: cx.focus_handle(),
11614                }
11615            }
11616        }
11617
11618        // View
11619        struct TestIpynbItemView {
11620            focus_handle: FocusHandle,
11621        }
11622        // Model
11623        struct TestIpynbItem {}
11624
11625        impl project::ProjectItem for TestIpynbItem {
11626            fn try_open(
11627                _project: &Entity<Project>,
11628                path: &ProjectPath,
11629                cx: &mut App,
11630            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11631                if path.path.extension().unwrap() == "ipynb" {
11632                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11633                } else {
11634                    None
11635                }
11636            }
11637
11638            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11639                None
11640            }
11641
11642            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11643                None
11644            }
11645
11646            fn is_dirty(&self) -> bool {
11647                false
11648            }
11649        }
11650
11651        impl Item for TestIpynbItemView {
11652            type Event = ();
11653            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11654                "".into()
11655            }
11656        }
11657        impl EventEmitter<()> for TestIpynbItemView {}
11658        impl Focusable for TestIpynbItemView {
11659            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11660                self.focus_handle.clone()
11661            }
11662        }
11663
11664        impl Render for TestIpynbItemView {
11665            fn render(
11666                &mut self,
11667                _window: &mut Window,
11668                _cx: &mut Context<Self>,
11669            ) -> impl IntoElement {
11670                Empty
11671            }
11672        }
11673
11674        impl ProjectItem for TestIpynbItemView {
11675            type Item = TestIpynbItem;
11676
11677            fn for_project_item(
11678                _project: Entity<Project>,
11679                _pane: Option<&Pane>,
11680                _item: Entity<Self::Item>,
11681                _: &mut Window,
11682                cx: &mut Context<Self>,
11683            ) -> Self
11684            where
11685                Self: Sized,
11686            {
11687                Self {
11688                    focus_handle: cx.focus_handle(),
11689                }
11690            }
11691        }
11692
11693        struct TestAlternatePngItemView {
11694            focus_handle: FocusHandle,
11695        }
11696
11697        impl Item for TestAlternatePngItemView {
11698            type Event = ();
11699            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11700                "".into()
11701            }
11702        }
11703
11704        impl EventEmitter<()> for TestAlternatePngItemView {}
11705        impl Focusable for TestAlternatePngItemView {
11706            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11707                self.focus_handle.clone()
11708            }
11709        }
11710
11711        impl Render for TestAlternatePngItemView {
11712            fn render(
11713                &mut self,
11714                _window: &mut Window,
11715                _cx: &mut Context<Self>,
11716            ) -> impl IntoElement {
11717                Empty
11718            }
11719        }
11720
11721        impl ProjectItem for TestAlternatePngItemView {
11722            type Item = TestPngItem;
11723
11724            fn for_project_item(
11725                _project: Entity<Project>,
11726                _pane: Option<&Pane>,
11727                _item: Entity<Self::Item>,
11728                _: &mut Window,
11729                cx: &mut Context<Self>,
11730            ) -> Self
11731            where
11732                Self: Sized,
11733            {
11734                Self {
11735                    focus_handle: cx.focus_handle(),
11736                }
11737            }
11738        }
11739
11740        #[gpui::test]
11741        async fn test_register_project_item(cx: &mut TestAppContext) {
11742            init_test(cx);
11743
11744            cx.update(|cx| {
11745                register_project_item::<TestPngItemView>(cx);
11746                register_project_item::<TestIpynbItemView>(cx);
11747            });
11748
11749            let fs = FakeFs::new(cx.executor());
11750            fs.insert_tree(
11751                "/root1",
11752                json!({
11753                    "one.png": "BINARYDATAHERE",
11754                    "two.ipynb": "{ totally a notebook }",
11755                    "three.txt": "editing text, sure why not?"
11756                }),
11757            )
11758            .await;
11759
11760            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11761            let (workspace, cx) =
11762                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11763
11764            let worktree_id = project.update(cx, |project, cx| {
11765                project.worktrees(cx).next().unwrap().read(cx).id()
11766            });
11767
11768            let handle = workspace
11769                .update_in(cx, |workspace, window, cx| {
11770                    let project_path = (worktree_id, rel_path("one.png"));
11771                    workspace.open_path(project_path, None, true, window, cx)
11772                })
11773                .await
11774                .unwrap();
11775
11776            // Now we can check if the handle we got back errored or not
11777            assert_eq!(
11778                handle.to_any_view().entity_type(),
11779                TypeId::of::<TestPngItemView>()
11780            );
11781
11782            let handle = workspace
11783                .update_in(cx, |workspace, window, cx| {
11784                    let project_path = (worktree_id, rel_path("two.ipynb"));
11785                    workspace.open_path(project_path, None, true, window, cx)
11786                })
11787                .await
11788                .unwrap();
11789
11790            assert_eq!(
11791                handle.to_any_view().entity_type(),
11792                TypeId::of::<TestIpynbItemView>()
11793            );
11794
11795            let handle = workspace
11796                .update_in(cx, |workspace, window, cx| {
11797                    let project_path = (worktree_id, rel_path("three.txt"));
11798                    workspace.open_path(project_path, None, true, window, cx)
11799                })
11800                .await;
11801            assert!(handle.is_err());
11802        }
11803
11804        #[gpui::test]
11805        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11806            init_test(cx);
11807
11808            cx.update(|cx| {
11809                register_project_item::<TestPngItemView>(cx);
11810                register_project_item::<TestAlternatePngItemView>(cx);
11811            });
11812
11813            let fs = FakeFs::new(cx.executor());
11814            fs.insert_tree(
11815                "/root1",
11816                json!({
11817                    "one.png": "BINARYDATAHERE",
11818                    "two.ipynb": "{ totally a notebook }",
11819                    "three.txt": "editing text, sure why not?"
11820                }),
11821            )
11822            .await;
11823            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11824            let (workspace, cx) =
11825                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11826            let worktree_id = project.update(cx, |project, cx| {
11827                project.worktrees(cx).next().unwrap().read(cx).id()
11828            });
11829
11830            let handle = workspace
11831                .update_in(cx, |workspace, window, cx| {
11832                    let project_path = (worktree_id, rel_path("one.png"));
11833                    workspace.open_path(project_path, None, true, window, cx)
11834                })
11835                .await
11836                .unwrap();
11837
11838            // This _must_ be the second item registered
11839            assert_eq!(
11840                handle.to_any_view().entity_type(),
11841                TypeId::of::<TestAlternatePngItemView>()
11842            );
11843
11844            let handle = workspace
11845                .update_in(cx, |workspace, window, cx| {
11846                    let project_path = (worktree_id, rel_path("three.txt"));
11847                    workspace.open_path(project_path, None, true, window, cx)
11848                })
11849                .await;
11850            assert!(handle.is_err());
11851        }
11852    }
11853
11854    #[gpui::test]
11855    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11856        init_test(cx);
11857
11858        let fs = FakeFs::new(cx.executor());
11859        let project = Project::test(fs, [], cx).await;
11860        let (workspace, _cx) =
11861            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11862
11863        // Test with status bar shown (default)
11864        workspace.read_with(cx, |workspace, cx| {
11865            let visible = workspace.status_bar_visible(cx);
11866            assert!(visible, "Status bar should be visible by default");
11867        });
11868
11869        // Test with status bar hidden
11870        cx.update_global(|store: &mut SettingsStore, cx| {
11871            store.update_user_settings(cx, |settings| {
11872                settings.status_bar.get_or_insert_default().show = Some(false);
11873            });
11874        });
11875
11876        workspace.read_with(cx, |workspace, cx| {
11877            let visible = workspace.status_bar_visible(cx);
11878            assert!(!visible, "Status bar should be hidden when show is false");
11879        });
11880
11881        // Test with status bar shown explicitly
11882        cx.update_global(|store: &mut SettingsStore, cx| {
11883            store.update_user_settings(cx, |settings| {
11884                settings.status_bar.get_or_insert_default().show = Some(true);
11885            });
11886        });
11887
11888        workspace.read_with(cx, |workspace, cx| {
11889            let visible = workspace.status_bar_visible(cx);
11890            assert!(visible, "Status bar should be visible when show is true");
11891        });
11892    }
11893
11894    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11895        pane.read(cx)
11896            .items()
11897            .flat_map(|item| {
11898                item.project_paths(cx)
11899                    .into_iter()
11900                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11901            })
11902            .collect()
11903    }
11904
11905    pub fn init_test(cx: &mut TestAppContext) {
11906        cx.update(|cx| {
11907            let settings_store = SettingsStore::test(cx);
11908            cx.set_global(settings_store);
11909            theme::init(theme::LoadThemes::JustBase, cx);
11910        });
11911    }
11912
11913    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11914        let item = TestProjectItem::new(id, path, cx);
11915        item.update(cx, |item, _| {
11916            item.is_dirty = true;
11917        });
11918        item
11919    }
11920}