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, notifications::NotificationId, utility_pane::UTILITY_PANE_MIN_WIDTH,
  139};
  140use crate::{
  141    persistence::{
  142        SerializedAxis,
  143        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  144    },
  145    security_modal::SecurityModal,
  146    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  147};
  148
  149pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  150
  151static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  152    env::var("ZED_WINDOW_SIZE")
  153        .ok()
  154        .as_deref()
  155        .and_then(parse_pixel_size_env_var)
  156});
  157
  158static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  159    env::var("ZED_WINDOW_POSITION")
  160        .ok()
  161        .as_deref()
  162        .and_then(parse_pixel_position_env_var)
  163});
  164
  165pub trait TerminalProvider {
  166    fn spawn(
  167        &self,
  168        task: SpawnInTerminal,
  169        window: &mut Window,
  170        cx: &mut App,
  171    ) -> Task<Option<Result<ExitStatus>>>;
  172}
  173
  174pub trait DebuggerProvider {
  175    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  176    fn start_session(
  177        &self,
  178        definition: DebugScenario,
  179        task_context: TaskContext,
  180        active_buffer: Option<Entity<Buffer>>,
  181        worktree_id: Option<WorktreeId>,
  182        window: &mut Window,
  183        cx: &mut App,
  184    );
  185
  186    fn spawn_task_or_modal(
  187        &self,
  188        workspace: &mut Workspace,
  189        action: &Spawn,
  190        window: &mut Window,
  191        cx: &mut Context<Workspace>,
  192    );
  193
  194    fn task_scheduled(&self, cx: &mut App);
  195    fn debug_scenario_scheduled(&self, cx: &mut App);
  196    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  197
  198    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  199}
  200
  201actions!(
  202    workspace,
  203    [
  204        /// Activates the next pane in the workspace.
  205        ActivateNextPane,
  206        /// Activates the previous pane in the workspace.
  207        ActivatePreviousPane,
  208        /// Switches to the next window.
  209        ActivateNextWindow,
  210        /// Switches to the previous window.
  211        ActivatePreviousWindow,
  212        /// Adds a folder to the current project.
  213        AddFolderToProject,
  214        /// Clears all notifications.
  215        ClearAllNotifications,
  216        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  217        ClearNavigationHistory,
  218        /// Closes the active dock.
  219        CloseActiveDock,
  220        /// Closes all docks.
  221        CloseAllDocks,
  222        /// Toggles all docks.
  223        ToggleAllDocks,
  224        /// Closes the current window.
  225        CloseWindow,
  226        /// Opens the feedback dialog.
  227        Feedback,
  228        /// Follows the next collaborator in the session.
  229        FollowNextCollaborator,
  230        /// Moves the focused panel to the next position.
  231        MoveFocusedPanelToNextPosition,
  232        /// Opens a new terminal in the center.
  233        NewCenterTerminal,
  234        /// Creates a new file.
  235        NewFile,
  236        /// Creates a new file in a vertical split.
  237        NewFileSplitVertical,
  238        /// Creates a new file in a horizontal split.
  239        NewFileSplitHorizontal,
  240        /// Opens a new search.
  241        NewSearch,
  242        /// Opens a new terminal.
  243        NewTerminal,
  244        /// Opens a new window.
  245        NewWindow,
  246        /// Opens a file or directory.
  247        Open,
  248        /// Opens multiple files.
  249        OpenFiles,
  250        /// Opens the current location in terminal.
  251        OpenInTerminal,
  252        /// Opens the component preview.
  253        OpenComponentPreview,
  254        /// Reloads the active item.
  255        ReloadActiveItem,
  256        /// Resets the active dock to its default size.
  257        ResetActiveDockSize,
  258        /// Resets all open docks to their default sizes.
  259        ResetOpenDocksSize,
  260        /// Reloads the application
  261        Reload,
  262        /// Saves the current file with a new name.
  263        SaveAs,
  264        /// Saves without formatting.
  265        SaveWithoutFormat,
  266        /// Shuts down all debug adapters.
  267        ShutdownDebugAdapters,
  268        /// Suppresses the current notification.
  269        SuppressNotification,
  270        /// Toggles the bottom dock.
  271        ToggleBottomDock,
  272        /// Toggles centered layout mode.
  273        ToggleCenteredLayout,
  274        /// Toggles edit prediction feature globally for all files.
  275        ToggleEditPrediction,
  276        /// Toggles the left dock.
  277        ToggleLeftDock,
  278        /// Toggles the right dock.
  279        ToggleRightDock,
  280        /// Toggles zoom on the active pane.
  281        ToggleZoom,
  282        /// Zooms in on the active pane.
  283        ZoomIn,
  284        /// Zooms out of the active pane.
  285        ZoomOut,
  286        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  287        /// If the modal is shown already, closes it without trusting any worktree.
  288        ToggleWorktreeSecurity,
  289        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  290        /// Requires restart to take effect on already opened projects.
  291        ClearTrustedWorktrees,
  292        /// Stops following a collaborator.
  293        Unfollow,
  294        /// Restores the banner.
  295        RestoreBanner,
  296        /// Toggles expansion of the selected item.
  297        ToggleExpandItem,
  298    ]
  299);
  300
  301/// Activates a specific pane by its index.
  302#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  303#[action(namespace = workspace)]
  304pub struct ActivatePane(pub usize);
  305
  306/// Moves an item to a specific pane by index.
  307#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  308#[action(namespace = workspace)]
  309#[serde(deny_unknown_fields)]
  310pub struct MoveItemToPane {
  311    #[serde(default = "default_1")]
  312    pub destination: usize,
  313    #[serde(default = "default_true")]
  314    pub focus: bool,
  315    #[serde(default)]
  316    pub clone: bool,
  317}
  318
  319fn default_1() -> usize {
  320    1
  321}
  322
  323/// Moves an item to a pane in the specified direction.
  324#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  325#[action(namespace = workspace)]
  326#[serde(deny_unknown_fields)]
  327pub struct MoveItemToPaneInDirection {
  328    #[serde(default = "default_right")]
  329    pub direction: SplitDirection,
  330    #[serde(default = "default_true")]
  331    pub focus: bool,
  332    #[serde(default)]
  333    pub clone: bool,
  334}
  335
  336/// Creates a new file in a split of the desired direction.
  337#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  338#[action(namespace = workspace)]
  339#[serde(deny_unknown_fields)]
  340pub struct NewFileSplit(pub SplitDirection);
  341
  342fn default_right() -> SplitDirection {
  343    SplitDirection::Right
  344}
  345
  346/// Saves all open files in the workspace.
  347#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  348#[action(namespace = workspace)]
  349#[serde(deny_unknown_fields)]
  350pub struct SaveAll {
  351    #[serde(default)]
  352    pub save_intent: Option<SaveIntent>,
  353}
  354
  355/// Saves the current file with the specified options.
  356#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  357#[action(namespace = workspace)]
  358#[serde(deny_unknown_fields)]
  359pub struct Save {
  360    #[serde(default)]
  361    pub save_intent: Option<SaveIntent>,
  362}
  363
  364/// Closes all items and panes in the workspace.
  365#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  366#[action(namespace = workspace)]
  367#[serde(deny_unknown_fields)]
  368pub struct CloseAllItemsAndPanes {
  369    #[serde(default)]
  370    pub save_intent: Option<SaveIntent>,
  371}
  372
  373/// Closes all inactive tabs and panes in the workspace.
  374#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  375#[action(namespace = workspace)]
  376#[serde(deny_unknown_fields)]
  377pub struct CloseInactiveTabsAndPanes {
  378    #[serde(default)]
  379    pub save_intent: Option<SaveIntent>,
  380}
  381
  382/// Sends a sequence of keystrokes to the active element.
  383#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  384#[action(namespace = workspace)]
  385pub struct SendKeystrokes(pub String);
  386
  387actions!(
  388    project_symbols,
  389    [
  390        /// Toggles the project symbols search.
  391        #[action(name = "Toggle")]
  392        ToggleProjectSymbols
  393    ]
  394);
  395
  396/// Toggles the file finder interface.
  397#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  398#[action(namespace = file_finder, name = "Toggle")]
  399#[serde(deny_unknown_fields)]
  400pub struct ToggleFileFinder {
  401    #[serde(default)]
  402    pub separate_history: bool,
  403}
  404
  405/// Increases size of a currently focused dock by a given amount of pixels.
  406#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  407#[action(namespace = workspace)]
  408#[serde(deny_unknown_fields)]
  409pub struct IncreaseActiveDockSize {
  410    /// For 0px parameter, uses UI font size value.
  411    #[serde(default)]
  412    pub px: u32,
  413}
  414
  415/// Decreases size of a currently focused dock by a given amount of pixels.
  416#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  417#[action(namespace = workspace)]
  418#[serde(deny_unknown_fields)]
  419pub struct DecreaseActiveDockSize {
  420    /// For 0px parameter, uses UI font size value.
  421    #[serde(default)]
  422    pub px: u32,
  423}
  424
  425/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  426#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  427#[action(namespace = workspace)]
  428#[serde(deny_unknown_fields)]
  429pub struct IncreaseOpenDocksSize {
  430    /// For 0px parameter, uses UI font size value.
  431    #[serde(default)]
  432    pub px: u32,
  433}
  434
  435/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  436#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  437#[action(namespace = workspace)]
  438#[serde(deny_unknown_fields)]
  439pub struct DecreaseOpenDocksSize {
  440    /// For 0px parameter, uses UI font size value.
  441    #[serde(default)]
  442    pub px: u32,
  443}
  444
  445actions!(
  446    workspace,
  447    [
  448        /// Activates the pane to the left.
  449        ActivatePaneLeft,
  450        /// Activates the pane to the right.
  451        ActivatePaneRight,
  452        /// Activates the pane above.
  453        ActivatePaneUp,
  454        /// Activates the pane below.
  455        ActivatePaneDown,
  456        /// Swaps the current pane with the one to the left.
  457        SwapPaneLeft,
  458        /// Swaps the current pane with the one to the right.
  459        SwapPaneRight,
  460        /// Swaps the current pane with the one above.
  461        SwapPaneUp,
  462        /// Swaps the current pane with the one below.
  463        SwapPaneDown,
  464        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  465        SwapPaneAdjacent,
  466        /// Move the current pane to be at the far left.
  467        MovePaneLeft,
  468        /// Move the current pane to be at the far right.
  469        MovePaneRight,
  470        /// Move the current pane to be at the very top.
  471        MovePaneUp,
  472        /// Move the current pane to be at the very bottom.
  473        MovePaneDown,
  474    ]
  475);
  476
  477#[derive(PartialEq, Eq, Debug)]
  478pub enum CloseIntent {
  479    /// Quit the program entirely.
  480    Quit,
  481    /// Close a window.
  482    CloseWindow,
  483    /// Replace the workspace in an existing window.
  484    ReplaceWindow,
  485}
  486
  487#[derive(Clone)]
  488pub struct Toast {
  489    id: NotificationId,
  490    msg: Cow<'static, str>,
  491    autohide: bool,
  492    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  493}
  494
  495impl Toast {
  496    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  497        Toast {
  498            id,
  499            msg: msg.into(),
  500            on_click: None,
  501            autohide: false,
  502        }
  503    }
  504
  505    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  506    where
  507        M: Into<Cow<'static, str>>,
  508        F: Fn(&mut Window, &mut App) + 'static,
  509    {
  510        self.on_click = Some((message.into(), Arc::new(on_click)));
  511        self
  512    }
  513
  514    pub fn autohide(mut self) -> Self {
  515        self.autohide = true;
  516        self
  517    }
  518}
  519
  520impl PartialEq for Toast {
  521    fn eq(&self, other: &Self) -> bool {
  522        self.id == other.id
  523            && self.msg == other.msg
  524            && self.on_click.is_some() == other.on_click.is_some()
  525    }
  526}
  527
  528/// Opens a new terminal with the specified working directory.
  529#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  530#[action(namespace = workspace)]
  531#[serde(deny_unknown_fields)]
  532pub struct OpenTerminal {
  533    pub working_directory: PathBuf,
  534}
  535
  536#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  537pub struct WorkspaceId(i64);
  538
  539impl StaticColumnCount for WorkspaceId {}
  540impl Bind for WorkspaceId {
  541    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  542        self.0.bind(statement, start_index)
  543    }
  544}
  545impl Column for WorkspaceId {
  546    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  547        i64::column(statement, start_index)
  548            .map(|(i, next_index)| (Self(i), next_index))
  549            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  550    }
  551}
  552impl From<WorkspaceId> for i64 {
  553    fn from(val: WorkspaceId) -> Self {
  554        val.0
  555    }
  556}
  557
  558fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  559    let paths = cx.prompt_for_paths(options);
  560    cx.spawn(
  561        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  562            Ok(Some(paths)) => {
  563                cx.update(|cx| {
  564                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  565                })
  566                .ok();
  567            }
  568            Ok(None) => {}
  569            Err(err) => {
  570                util::log_err(&err);
  571                cx.update(|cx| {
  572                    if let Some(workspace_window) = cx
  573                        .active_window()
  574                        .and_then(|window| window.downcast::<Workspace>())
  575                    {
  576                        workspace_window
  577                            .update(cx, |workspace, _, cx| {
  578                                workspace.show_portal_error(err.to_string(), cx);
  579                            })
  580                            .ok();
  581                    }
  582                })
  583                .ok();
  584            }
  585        },
  586    )
  587    .detach();
  588}
  589
  590pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  591    component::init();
  592    theme_preview::init(cx);
  593    toast_layer::init(cx);
  594    history_manager::init(cx);
  595
  596    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  597        .on_action(|_: &Reload, cx| reload(cx))
  598        .on_action({
  599            let app_state = Arc::downgrade(&app_state);
  600            move |_: &Open, cx: &mut App| {
  601                if let Some(app_state) = app_state.upgrade() {
  602                    prompt_and_open_paths(
  603                        app_state,
  604                        PathPromptOptions {
  605                            files: true,
  606                            directories: true,
  607                            multiple: true,
  608                            prompt: None,
  609                        },
  610                        cx,
  611                    );
  612                }
  613            }
  614        })
  615        .on_action({
  616            let app_state = Arc::downgrade(&app_state);
  617            move |_: &OpenFiles, cx: &mut App| {
  618                let directories = cx.can_select_mixed_files_and_dirs();
  619                if let Some(app_state) = app_state.upgrade() {
  620                    prompt_and_open_paths(
  621                        app_state,
  622                        PathPromptOptions {
  623                            files: true,
  624                            directories,
  625                            multiple: true,
  626                            prompt: None,
  627                        },
  628                        cx,
  629                    );
  630                }
  631            }
  632        });
  633}
  634
  635type BuildProjectItemFn =
  636    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  637
  638type BuildProjectItemForPathFn =
  639    fn(
  640        &Entity<Project>,
  641        &ProjectPath,
  642        &mut Window,
  643        &mut App,
  644    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  645
  646#[derive(Clone, Default)]
  647struct ProjectItemRegistry {
  648    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  649    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  650}
  651
  652impl ProjectItemRegistry {
  653    fn register<T: ProjectItem>(&mut self) {
  654        self.build_project_item_fns_by_type.insert(
  655            TypeId::of::<T::Item>(),
  656            |item, project, pane, window, cx| {
  657                let item = item.downcast().unwrap();
  658                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  659                    as Box<dyn ItemHandle>
  660            },
  661        );
  662        self.build_project_item_for_path_fns
  663            .push(|project, project_path, window, cx| {
  664                let project_path = project_path.clone();
  665                let is_file = project
  666                    .read(cx)
  667                    .entry_for_path(&project_path, cx)
  668                    .is_some_and(|entry| entry.is_file());
  669                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  670                let is_local = project.read(cx).is_local();
  671                let project_item =
  672                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  673                let project = project.clone();
  674                Some(window.spawn(cx, async move |cx| {
  675                    match project_item.await.with_context(|| {
  676                        format!(
  677                            "opening project path {:?}",
  678                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  679                        )
  680                    }) {
  681                        Ok(project_item) => {
  682                            let project_item = project_item;
  683                            let project_entry_id: Option<ProjectEntryId> =
  684                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  685                            let build_workspace_item = Box::new(
  686                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  687                                    Box::new(cx.new(|cx| {
  688                                        T::for_project_item(
  689                                            project,
  690                                            Some(pane),
  691                                            project_item,
  692                                            window,
  693                                            cx,
  694                                        )
  695                                    })) as Box<dyn ItemHandle>
  696                                },
  697                            ) as Box<_>;
  698                            Ok((project_entry_id, build_workspace_item))
  699                        }
  700                        Err(e) => {
  701                            log::warn!("Failed to open a project item: {e:#}");
  702                            if e.error_code() == ErrorCode::Internal {
  703                                if let Some(abs_path) =
  704                                    entry_abs_path.as_deref().filter(|_| is_file)
  705                                {
  706                                    if let Some(broken_project_item_view) =
  707                                        cx.update(|window, cx| {
  708                                            T::for_broken_project_item(
  709                                                abs_path, is_local, &e, window, cx,
  710                                            )
  711                                        })?
  712                                    {
  713                                        let build_workspace_item = Box::new(
  714                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  715                                                cx.new(|_| broken_project_item_view).boxed_clone()
  716                                            },
  717                                        )
  718                                        as Box<_>;
  719                                        return Ok((None, build_workspace_item));
  720                                    }
  721                                }
  722                            }
  723                            Err(e)
  724                        }
  725                    }
  726                }))
  727            });
  728    }
  729
  730    fn open_path(
  731        &self,
  732        project: &Entity<Project>,
  733        path: &ProjectPath,
  734        window: &mut Window,
  735        cx: &mut App,
  736    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  737        let Some(open_project_item) = self
  738            .build_project_item_for_path_fns
  739            .iter()
  740            .rev()
  741            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  742        else {
  743            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  744        };
  745        open_project_item
  746    }
  747
  748    fn build_item<T: project::ProjectItem>(
  749        &self,
  750        item: Entity<T>,
  751        project: Entity<Project>,
  752        pane: Option<&Pane>,
  753        window: &mut Window,
  754        cx: &mut App,
  755    ) -> Option<Box<dyn ItemHandle>> {
  756        let build = self
  757            .build_project_item_fns_by_type
  758            .get(&TypeId::of::<T>())?;
  759        Some(build(item.into_any(), project, pane, window, cx))
  760    }
  761}
  762
  763type WorkspaceItemBuilder =
  764    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  765
  766impl Global for ProjectItemRegistry {}
  767
  768/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  769/// items will get a chance to open the file, starting from the project item that
  770/// was added last.
  771pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  772    cx.default_global::<ProjectItemRegistry>().register::<I>();
  773}
  774
  775#[derive(Default)]
  776pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  777
  778struct FollowableViewDescriptor {
  779    from_state_proto: fn(
  780        Entity<Workspace>,
  781        ViewId,
  782        &mut Option<proto::view::Variant>,
  783        &mut Window,
  784        &mut App,
  785    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  786    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  787}
  788
  789impl Global for FollowableViewRegistry {}
  790
  791impl FollowableViewRegistry {
  792    pub fn register<I: FollowableItem>(cx: &mut App) {
  793        cx.default_global::<Self>().0.insert(
  794            TypeId::of::<I>(),
  795            FollowableViewDescriptor {
  796                from_state_proto: |workspace, id, state, window, cx| {
  797                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  798                        cx.foreground_executor()
  799                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  800                    })
  801                },
  802                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  803            },
  804        );
  805    }
  806
  807    pub fn from_state_proto(
  808        workspace: Entity<Workspace>,
  809        view_id: ViewId,
  810        mut state: Option<proto::view::Variant>,
  811        window: &mut Window,
  812        cx: &mut App,
  813    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  814        cx.update_default_global(|this: &mut Self, cx| {
  815            this.0.values().find_map(|descriptor| {
  816                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  817            })
  818        })
  819    }
  820
  821    pub fn to_followable_view(
  822        view: impl Into<AnyView>,
  823        cx: &App,
  824    ) -> Option<Box<dyn FollowableItemHandle>> {
  825        let this = cx.try_global::<Self>()?;
  826        let view = view.into();
  827        let descriptor = this.0.get(&view.entity_type())?;
  828        Some((descriptor.to_followable_view)(&view))
  829    }
  830}
  831
  832#[derive(Copy, Clone)]
  833struct SerializableItemDescriptor {
  834    deserialize: fn(
  835        Entity<Project>,
  836        WeakEntity<Workspace>,
  837        WorkspaceId,
  838        ItemId,
  839        &mut Window,
  840        &mut Context<Pane>,
  841    ) -> Task<Result<Box<dyn ItemHandle>>>,
  842    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  843    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  844}
  845
  846#[derive(Default)]
  847struct SerializableItemRegistry {
  848    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  849    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  850}
  851
  852impl Global for SerializableItemRegistry {}
  853
  854impl SerializableItemRegistry {
  855    fn deserialize(
  856        item_kind: &str,
  857        project: Entity<Project>,
  858        workspace: WeakEntity<Workspace>,
  859        workspace_id: WorkspaceId,
  860        item_item: ItemId,
  861        window: &mut Window,
  862        cx: &mut Context<Pane>,
  863    ) -> Task<Result<Box<dyn ItemHandle>>> {
  864        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  865            return Task::ready(Err(anyhow!(
  866                "cannot deserialize {}, descriptor not found",
  867                item_kind
  868            )));
  869        };
  870
  871        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  872    }
  873
  874    fn cleanup(
  875        item_kind: &str,
  876        workspace_id: WorkspaceId,
  877        loaded_items: Vec<ItemId>,
  878        window: &mut Window,
  879        cx: &mut App,
  880    ) -> Task<Result<()>> {
  881        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  882            return Task::ready(Err(anyhow!(
  883                "cannot cleanup {}, descriptor not found",
  884                item_kind
  885            )));
  886        };
  887
  888        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  889    }
  890
  891    fn view_to_serializable_item_handle(
  892        view: AnyView,
  893        cx: &App,
  894    ) -> Option<Box<dyn SerializableItemHandle>> {
  895        let this = cx.try_global::<Self>()?;
  896        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  897        Some((descriptor.view_to_serializable_item)(view))
  898    }
  899
  900    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  901        let this = cx.try_global::<Self>()?;
  902        this.descriptors_by_kind.get(item_kind).copied()
  903    }
  904}
  905
  906pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  907    let serialized_item_kind = I::serialized_item_kind();
  908
  909    let registry = cx.default_global::<SerializableItemRegistry>();
  910    let descriptor = SerializableItemDescriptor {
  911        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  912            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  913            cx.foreground_executor()
  914                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  915        },
  916        cleanup: |workspace_id, loaded_items, window, cx| {
  917            I::cleanup(workspace_id, loaded_items, window, cx)
  918        },
  919        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  920    };
  921    registry
  922        .descriptors_by_kind
  923        .insert(Arc::from(serialized_item_kind), descriptor);
  924    registry
  925        .descriptors_by_type
  926        .insert(TypeId::of::<I>(), descriptor);
  927}
  928
  929pub struct AppState {
  930    pub languages: Arc<LanguageRegistry>,
  931    pub client: Arc<Client>,
  932    pub user_store: Entity<UserStore>,
  933    pub workspace_store: Entity<WorkspaceStore>,
  934    pub fs: Arc<dyn fs::Fs>,
  935    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  936    pub node_runtime: NodeRuntime,
  937    pub session: Entity<AppSession>,
  938}
  939
  940struct GlobalAppState(Weak<AppState>);
  941
  942impl Global for GlobalAppState {}
  943
  944pub struct WorkspaceStore {
  945    workspaces: HashSet<WindowHandle<Workspace>>,
  946    client: Arc<Client>,
  947    _subscriptions: Vec<client::Subscription>,
  948}
  949
  950#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  951pub enum CollaboratorId {
  952    PeerId(PeerId),
  953    Agent,
  954}
  955
  956impl From<PeerId> for CollaboratorId {
  957    fn from(peer_id: PeerId) -> Self {
  958        CollaboratorId::PeerId(peer_id)
  959    }
  960}
  961
  962impl From<&PeerId> for CollaboratorId {
  963    fn from(peer_id: &PeerId) -> Self {
  964        CollaboratorId::PeerId(*peer_id)
  965    }
  966}
  967
  968#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  969struct Follower {
  970    project_id: Option<u64>,
  971    peer_id: PeerId,
  972}
  973
  974impl AppState {
  975    #[track_caller]
  976    pub fn global(cx: &App) -> Weak<Self> {
  977        cx.global::<GlobalAppState>().0.clone()
  978    }
  979    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  980        cx.try_global::<GlobalAppState>()
  981            .map(|state| state.0.clone())
  982    }
  983    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  984        cx.set_global(GlobalAppState(state));
  985    }
  986
  987    #[cfg(any(test, feature = "test-support"))]
  988    pub fn test(cx: &mut App) -> Arc<Self> {
  989        use node_runtime::NodeRuntime;
  990        use session::Session;
  991        use settings::SettingsStore;
  992
  993        if !cx.has_global::<SettingsStore>() {
  994            let settings_store = SettingsStore::test(cx);
  995            cx.set_global(settings_store);
  996        }
  997
  998        let fs = fs::FakeFs::new(cx.background_executor().clone());
  999        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1000        let clock = Arc::new(clock::FakeSystemClock::new());
 1001        let http_client = http_client::FakeHttpClient::with_404_response();
 1002        let client = Client::new(clock, http_client, cx);
 1003        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1004        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1005        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1006
 1007        theme::init(theme::LoadThemes::JustBase, cx);
 1008        client::init(&client, cx);
 1009
 1010        Arc::new(Self {
 1011            client,
 1012            fs,
 1013            languages,
 1014            user_store,
 1015            workspace_store,
 1016            node_runtime: NodeRuntime::unavailable(),
 1017            build_window_options: |_, _| Default::default(),
 1018            session,
 1019        })
 1020    }
 1021}
 1022
 1023struct DelayedDebouncedEditAction {
 1024    task: Option<Task<()>>,
 1025    cancel_channel: Option<oneshot::Sender<()>>,
 1026}
 1027
 1028impl DelayedDebouncedEditAction {
 1029    fn new() -> DelayedDebouncedEditAction {
 1030        DelayedDebouncedEditAction {
 1031            task: None,
 1032            cancel_channel: None,
 1033        }
 1034    }
 1035
 1036    fn fire_new<F>(
 1037        &mut self,
 1038        delay: Duration,
 1039        window: &mut Window,
 1040        cx: &mut Context<Workspace>,
 1041        func: F,
 1042    ) where
 1043        F: 'static
 1044            + Send
 1045            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1046    {
 1047        if let Some(channel) = self.cancel_channel.take() {
 1048            _ = channel.send(());
 1049        }
 1050
 1051        let (sender, mut receiver) = oneshot::channel::<()>();
 1052        self.cancel_channel = Some(sender);
 1053
 1054        let previous_task = self.task.take();
 1055        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1056            let mut timer = cx.background_executor().timer(delay).fuse();
 1057            if let Some(previous_task) = previous_task {
 1058                previous_task.await;
 1059            }
 1060
 1061            futures::select_biased! {
 1062                _ = receiver => return,
 1063                    _ = timer => {}
 1064            }
 1065
 1066            if let Some(result) = workspace
 1067                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1068                .log_err()
 1069            {
 1070                result.await.log_err();
 1071            }
 1072        }));
 1073    }
 1074}
 1075
 1076pub enum Event {
 1077    PaneAdded(Entity<Pane>),
 1078    PaneRemoved,
 1079    ItemAdded {
 1080        item: Box<dyn ItemHandle>,
 1081    },
 1082    ActiveItemChanged,
 1083    ItemRemoved {
 1084        item_id: EntityId,
 1085    },
 1086    UserSavedItem {
 1087        pane: WeakEntity<Pane>,
 1088        item: Box<dyn WeakItemHandle>,
 1089        save_intent: SaveIntent,
 1090    },
 1091    ContactRequestedJoin(u64),
 1092    WorkspaceCreated(WeakEntity<Workspace>),
 1093    OpenBundledFile {
 1094        text: Cow<'static, str>,
 1095        title: &'static str,
 1096        language: &'static str,
 1097    },
 1098    ZoomChanged,
 1099    ModalOpened,
 1100}
 1101
 1102#[derive(Debug)]
 1103pub enum OpenVisible {
 1104    All,
 1105    None,
 1106    OnlyFiles,
 1107    OnlyDirectories,
 1108}
 1109
 1110enum WorkspaceLocation {
 1111    // Valid local paths or SSH project to serialize
 1112    Location(SerializedWorkspaceLocation, PathList),
 1113    // No valid location found hence clear session id
 1114    DetachFromSession,
 1115    // No valid location found to serialize
 1116    None,
 1117}
 1118
 1119type PromptForNewPath = Box<
 1120    dyn Fn(
 1121        &mut Workspace,
 1122        DirectoryLister,
 1123        &mut Window,
 1124        &mut Context<Workspace>,
 1125    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1126>;
 1127
 1128type PromptForOpenPath = Box<
 1129    dyn Fn(
 1130        &mut Workspace,
 1131        DirectoryLister,
 1132        &mut Window,
 1133        &mut Context<Workspace>,
 1134    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1135>;
 1136
 1137#[derive(Default)]
 1138struct DispatchingKeystrokes {
 1139    dispatched: HashSet<Vec<Keystroke>>,
 1140    queue: VecDeque<Keystroke>,
 1141    task: Option<Shared<Task<()>>>,
 1142}
 1143
 1144/// Collects everything project-related for a certain window opened.
 1145/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1146///
 1147/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1148/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1149/// that can be used to register a global action to be triggered from any place in the window.
 1150pub struct Workspace {
 1151    weak_self: WeakEntity<Self>,
 1152    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1153    zoomed: Option<AnyWeakView>,
 1154    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1155    zoomed_position: Option<DockPosition>,
 1156    center: PaneGroup,
 1157    left_dock: Entity<Dock>,
 1158    bottom_dock: Entity<Dock>,
 1159    right_dock: Entity<Dock>,
 1160    panes: Vec<Entity<Pane>>,
 1161    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1162    active_pane: Entity<Pane>,
 1163    last_active_center_pane: Option<WeakEntity<Pane>>,
 1164    last_active_view_id: Option<proto::ViewId>,
 1165    status_bar: Entity<StatusBar>,
 1166    modal_layer: Entity<ModalLayer>,
 1167    toast_layer: Entity<ToastLayer>,
 1168    titlebar_item: Option<AnyView>,
 1169    notifications: Notifications,
 1170    suppressed_notifications: HashSet<NotificationId>,
 1171    project: Entity<Project>,
 1172    follower_states: HashMap<CollaboratorId, FollowerState>,
 1173    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1174    window_edited: bool,
 1175    last_window_title: Option<String>,
 1176    dirty_items: HashMap<EntityId, Subscription>,
 1177    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1178    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1179    database_id: Option<WorkspaceId>,
 1180    app_state: Arc<AppState>,
 1181    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1182    _subscriptions: Vec<Subscription>,
 1183    _apply_leader_updates: Task<Result<()>>,
 1184    _observe_current_user: Task<Result<()>>,
 1185    _schedule_serialize_workspace: Option<Task<()>>,
 1186    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1187    _schedule_serialize_worktree_trust: Task<()>,
 1188    pane_history_timestamp: Arc<AtomicUsize>,
 1189    bounds: Bounds<Pixels>,
 1190    pub centered_layout: bool,
 1191    bounds_save_task_queued: Option<Task<()>>,
 1192    on_prompt_for_new_path: Option<PromptForNewPath>,
 1193    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1194    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1195    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1196    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1197    _items_serializer: Task<Result<()>>,
 1198    session_id: Option<String>,
 1199    scheduled_tasks: Vec<Task<()>>,
 1200    last_open_dock_positions: Vec<DockPosition>,
 1201    removing: bool,
 1202    utility_panes: UtilityPaneState,
 1203}
 1204
 1205impl EventEmitter<Event> for Workspace {}
 1206
 1207#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1208pub struct ViewId {
 1209    pub creator: CollaboratorId,
 1210    pub id: u64,
 1211}
 1212
 1213pub struct FollowerState {
 1214    center_pane: Entity<Pane>,
 1215    dock_pane: Option<Entity<Pane>>,
 1216    active_view_id: Option<ViewId>,
 1217    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1218}
 1219
 1220struct FollowerView {
 1221    view: Box<dyn FollowableItemHandle>,
 1222    location: Option<proto::PanelId>,
 1223}
 1224
 1225impl Workspace {
 1226    pub fn new(
 1227        workspace_id: Option<WorkspaceId>,
 1228        project: Entity<Project>,
 1229        app_state: Arc<AppState>,
 1230        window: &mut Window,
 1231        cx: &mut Context<Self>,
 1232    ) -> Self {
 1233        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1234            cx.subscribe(&trusted_worktrees, |workspace, worktrees_store, e, cx| {
 1235                if let TrustedWorktreesEvent::Trusted(..) = e {
 1236                    let (new_trusted_workspaces, new_trusted_worktrees) = worktrees_store
 1237                        .update(cx, |worktrees_store, cx| {
 1238                            worktrees_store.trusted_paths_for_serialization(cx)
 1239                        });
 1240                    // Do not persist auto trusted worktrees
 1241                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1242                        let timeout = cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1243                        workspace._schedule_serialize_worktree_trust =
 1244                            cx.background_spawn(async move {
 1245                                timeout.await;
 1246                                persistence::DB
 1247                                    .save_trusted_worktrees(
 1248                                        new_trusted_worktrees,
 1249                                        new_trusted_workspaces,
 1250                                    )
 1251                                    .await
 1252                                    .log_err();
 1253                            });
 1254                    }
 1255                }
 1256            })
 1257            .detach();
 1258
 1259            cx.observe_global::<SettingsStore>(|_, cx| {
 1260                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1261                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1262                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1263                            trusted_worktrees.auto_trust_all(cx);
 1264                        })
 1265                    }
 1266                }
 1267            })
 1268            .detach();
 1269        }
 1270
 1271        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1272            match event {
 1273                project::Event::RemoteIdChanged(_) => {
 1274                    this.update_window_title(window, cx);
 1275                }
 1276
 1277                project::Event::CollaboratorLeft(peer_id) => {
 1278                    this.collaborator_left(*peer_id, window, cx);
 1279                }
 1280
 1281                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1282                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1283                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1284                            trusted_worktrees.can_trust(*worktree_id, cx);
 1285                        });
 1286                    }
 1287                }
 1288
 1289                project::Event::WorktreeRemoved(_) => {
 1290                    this.update_worktree_data(window, cx);
 1291                }
 1292
 1293                project::Event::WorktreeAdded(worktree_id) => {
 1294                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1295                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1296                            trusted_worktrees.can_trust(*worktree_id, cx);
 1297                        });
 1298                    }
 1299                    this.update_worktree_data(window, cx);
 1300                }
 1301
 1302                project::Event::DisconnectedFromHost => {
 1303                    this.update_window_edited(window, cx);
 1304                    let leaders_to_unfollow =
 1305                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1306                    for leader_id in leaders_to_unfollow {
 1307                        this.unfollow(leader_id, window, cx);
 1308                    }
 1309                }
 1310
 1311                project::Event::DisconnectedFromSshRemote => {
 1312                    this.update_window_edited(window, cx);
 1313                }
 1314
 1315                project::Event::Closed => {
 1316                    window.remove_window();
 1317                }
 1318
 1319                project::Event::DeletedEntry(_, entry_id) => {
 1320                    for pane in this.panes.iter() {
 1321                        pane.update(cx, |pane, cx| {
 1322                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1323                        });
 1324                    }
 1325                }
 1326
 1327                project::Event::Toast {
 1328                    notification_id,
 1329                    message,
 1330                } => this.show_notification(
 1331                    NotificationId::named(notification_id.clone()),
 1332                    cx,
 1333                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1334                ),
 1335
 1336                project::Event::HideToast { notification_id } => {
 1337                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1338                }
 1339
 1340                project::Event::LanguageServerPrompt(request) => {
 1341                    struct LanguageServerPrompt;
 1342
 1343                    let mut hasher = DefaultHasher::new();
 1344                    request.lsp_name.as_str().hash(&mut hasher);
 1345                    let id = hasher.finish();
 1346
 1347                    this.show_notification(
 1348                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1349                        cx,
 1350                        |cx| {
 1351                            cx.new(|cx| {
 1352                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1353                            })
 1354                        },
 1355                    );
 1356                }
 1357
 1358                project::Event::AgentLocationChanged => {
 1359                    this.handle_agent_location_changed(window, cx)
 1360                }
 1361
 1362                _ => {}
 1363            }
 1364            cx.notify()
 1365        })
 1366        .detach();
 1367
 1368        cx.subscribe_in(
 1369            &project.read(cx).breakpoint_store(),
 1370            window,
 1371            |workspace, _, event, window, cx| match event {
 1372                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1373                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1374                    workspace.serialize_workspace(window, cx);
 1375                }
 1376                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1377            },
 1378        )
 1379        .detach();
 1380        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1381            cx.subscribe_in(
 1382                &toolchain_store,
 1383                window,
 1384                |workspace, _, event, window, cx| match event {
 1385                    ToolchainStoreEvent::CustomToolchainsModified => {
 1386                        workspace.serialize_workspace(window, cx);
 1387                    }
 1388                    _ => {}
 1389                },
 1390            )
 1391            .detach();
 1392        }
 1393
 1394        cx.on_focus_lost(window, |this, window, cx| {
 1395            let focus_handle = this.focus_handle(cx);
 1396            window.focus(&focus_handle);
 1397        })
 1398        .detach();
 1399
 1400        let weak_handle = cx.entity().downgrade();
 1401        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1402
 1403        let center_pane = cx.new(|cx| {
 1404            let mut center_pane = Pane::new(
 1405                weak_handle.clone(),
 1406                project.clone(),
 1407                pane_history_timestamp.clone(),
 1408                None,
 1409                NewFile.boxed_clone(),
 1410                true,
 1411                window,
 1412                cx,
 1413            );
 1414            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1415            center_pane
 1416        });
 1417        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1418            .detach();
 1419
 1420        window.focus(&center_pane.focus_handle(cx));
 1421
 1422        cx.emit(Event::PaneAdded(center_pane.clone()));
 1423
 1424        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1425        app_state.workspace_store.update(cx, |store, _| {
 1426            store.workspaces.insert(window_handle);
 1427        });
 1428
 1429        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1430        let mut connection_status = app_state.client.status();
 1431        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1432            current_user.next().await;
 1433            connection_status.next().await;
 1434            let mut stream =
 1435                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1436
 1437            while stream.recv().await.is_some() {
 1438                this.update(cx, |_, cx| cx.notify())?;
 1439            }
 1440            anyhow::Ok(())
 1441        });
 1442
 1443        // All leader updates are enqueued and then processed in a single task, so
 1444        // that each asynchronous operation can be run in order.
 1445        let (leader_updates_tx, mut leader_updates_rx) =
 1446            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1447        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1448            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1449                Self::process_leader_update(&this, leader_id, update, cx)
 1450                    .await
 1451                    .log_err();
 1452            }
 1453
 1454            Ok(())
 1455        });
 1456
 1457        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1458        let modal_layer = cx.new(|_| ModalLayer::new());
 1459        let toast_layer = cx.new(|_| ToastLayer::new());
 1460        cx.subscribe(
 1461            &modal_layer,
 1462            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1463                cx.emit(Event::ModalOpened);
 1464            },
 1465        )
 1466        .detach();
 1467
 1468        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1469        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1470        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1471        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1472        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1473        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1474        let status_bar = cx.new(|cx| {
 1475            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1476            status_bar.add_left_item(left_dock_buttons, window, cx);
 1477            status_bar.add_right_item(right_dock_buttons, window, cx);
 1478            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1479            status_bar
 1480        });
 1481
 1482        let session_id = app_state.session.read(cx).id().to_owned();
 1483
 1484        let mut active_call = None;
 1485        if let Some(call) = ActiveCall::try_global(cx) {
 1486            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1487            active_call = Some((call, subscriptions));
 1488        }
 1489
 1490        let (serializable_items_tx, serializable_items_rx) =
 1491            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1492        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1493            Self::serialize_items(&this, serializable_items_rx, cx).await
 1494        });
 1495
 1496        let subscriptions = vec![
 1497            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1498            cx.observe_window_bounds(window, move |this, window, cx| {
 1499                if this.bounds_save_task_queued.is_some() {
 1500                    return;
 1501                }
 1502                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1503                    cx.background_executor()
 1504                        .timer(Duration::from_millis(100))
 1505                        .await;
 1506                    this.update_in(cx, |this, window, cx| {
 1507                        if let Some(display) = window.display(cx)
 1508                            && let Ok(display_uuid) = display.uuid()
 1509                        {
 1510                            let window_bounds = window.inner_window_bounds();
 1511                            if let Some(database_id) = workspace_id {
 1512                                cx.background_executor()
 1513                                    .spawn(DB.set_window_open_status(
 1514                                        database_id,
 1515                                        SerializedWindowBounds(window_bounds),
 1516                                        display_uuid,
 1517                                    ))
 1518                                    .detach_and_log_err(cx);
 1519                            }
 1520                        }
 1521                        this.bounds_save_task_queued.take();
 1522                    })
 1523                    .ok();
 1524                }));
 1525                cx.notify();
 1526            }),
 1527            cx.observe_window_appearance(window, |_, window, cx| {
 1528                let window_appearance = window.appearance();
 1529
 1530                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1531
 1532                GlobalTheme::reload_theme(cx);
 1533                GlobalTheme::reload_icon_theme(cx);
 1534            }),
 1535            cx.on_release(move |this, cx| {
 1536                this.app_state.workspace_store.update(cx, move |store, _| {
 1537                    store.workspaces.remove(&window_handle);
 1538                })
 1539            }),
 1540        ];
 1541
 1542        cx.defer_in(window, move |this, window, cx| {
 1543            this.update_window_title(window, cx);
 1544            this.show_initial_notifications(cx);
 1545        });
 1546
 1547        let mut center = PaneGroup::new(center_pane.clone());
 1548        center.set_is_center(true);
 1549        center.mark_positions(cx);
 1550
 1551        Workspace {
 1552            weak_self: weak_handle.clone(),
 1553            zoomed: None,
 1554            zoomed_position: None,
 1555            previous_dock_drag_coordinates: None,
 1556            center,
 1557            panes: vec![center_pane.clone()],
 1558            panes_by_item: Default::default(),
 1559            active_pane: center_pane.clone(),
 1560            last_active_center_pane: Some(center_pane.downgrade()),
 1561            last_active_view_id: None,
 1562            status_bar,
 1563            modal_layer,
 1564            toast_layer,
 1565            titlebar_item: None,
 1566            notifications: Notifications::default(),
 1567            suppressed_notifications: HashSet::default(),
 1568            left_dock,
 1569            bottom_dock,
 1570            right_dock,
 1571            project: project.clone(),
 1572            follower_states: Default::default(),
 1573            last_leaders_by_pane: Default::default(),
 1574            dispatching_keystrokes: Default::default(),
 1575            window_edited: false,
 1576            last_window_title: None,
 1577            dirty_items: Default::default(),
 1578            active_call,
 1579            database_id: workspace_id,
 1580            app_state,
 1581            _observe_current_user,
 1582            _apply_leader_updates,
 1583            _schedule_serialize_workspace: None,
 1584            _schedule_serialize_ssh_paths: None,
 1585            _schedule_serialize_worktree_trust: Task::ready(()),
 1586            leader_updates_tx,
 1587            _subscriptions: subscriptions,
 1588            pane_history_timestamp,
 1589            workspace_actions: Default::default(),
 1590            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1591            bounds: Default::default(),
 1592            centered_layout: false,
 1593            bounds_save_task_queued: None,
 1594            on_prompt_for_new_path: None,
 1595            on_prompt_for_open_path: None,
 1596            terminal_provider: None,
 1597            debugger_provider: None,
 1598            serializable_items_tx,
 1599            _items_serializer,
 1600            session_id: Some(session_id),
 1601
 1602            scheduled_tasks: Vec::new(),
 1603            last_open_dock_positions: Vec::new(),
 1604            removing: false,
 1605            utility_panes: UtilityPaneState::default(),
 1606        }
 1607    }
 1608
 1609    pub fn new_local(
 1610        abs_paths: Vec<PathBuf>,
 1611        app_state: Arc<AppState>,
 1612        requesting_window: Option<WindowHandle<Workspace>>,
 1613        env: Option<HashMap<String, String>>,
 1614        cx: &mut App,
 1615    ) -> Task<
 1616        anyhow::Result<(
 1617            WindowHandle<Workspace>,
 1618            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1619        )>,
 1620    > {
 1621        let project_handle = Project::local(
 1622            app_state.client.clone(),
 1623            app_state.node_runtime.clone(),
 1624            app_state.user_store.clone(),
 1625            app_state.languages.clone(),
 1626            app_state.fs.clone(),
 1627            env,
 1628            true,
 1629            cx,
 1630        );
 1631
 1632        cx.spawn(async move |cx| {
 1633            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1634            for path in abs_paths.into_iter() {
 1635                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1636                    paths_to_open.push(canonical)
 1637                } else {
 1638                    paths_to_open.push(path)
 1639                }
 1640            }
 1641
 1642            let serialized_workspace =
 1643                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1644
 1645            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1646                paths_to_open = paths.ordered_paths().cloned().collect();
 1647                if !paths.is_lexicographically_ordered() {
 1648                    project_handle
 1649                        .update(cx, |project, cx| {
 1650                            project.set_worktrees_reordered(true, cx);
 1651                        })
 1652                        .log_err();
 1653                }
 1654            }
 1655
 1656            // Get project paths for all of the abs_paths
 1657            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1658                Vec::with_capacity(paths_to_open.len());
 1659
 1660            for path in paths_to_open.into_iter() {
 1661                if let Some((_, project_entry)) = cx
 1662                    .update(|cx| {
 1663                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1664                    })?
 1665                    .await
 1666                    .log_err()
 1667                {
 1668                    project_paths.push((path, Some(project_entry)));
 1669                } else {
 1670                    project_paths.push((path, None));
 1671                }
 1672            }
 1673
 1674            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1675                serialized_workspace.id
 1676            } else {
 1677                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1678            };
 1679
 1680            let toolchains = DB.toolchains(workspace_id).await?;
 1681
 1682            for (toolchain, worktree_id, path) in toolchains {
 1683                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1684                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1685                    continue;
 1686                }
 1687
 1688                project_handle
 1689                    .update(cx, |this, cx| {
 1690                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1691                    })?
 1692                    .await;
 1693            }
 1694            if let Some(workspace) = serialized_workspace.as_ref() {
 1695                project_handle.update(cx, |this, cx| {
 1696                    for (scope, toolchains) in &workspace.user_toolchains {
 1697                        for toolchain in toolchains {
 1698                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1699                        }
 1700                    }
 1701                })?;
 1702            }
 1703
 1704            let window = if let Some(window) = requesting_window {
 1705                let centered_layout = serialized_workspace
 1706                    .as_ref()
 1707                    .map(|w| w.centered_layout)
 1708                    .unwrap_or(false);
 1709
 1710                cx.update_window(window.into(), |_, window, cx| {
 1711                    window.replace_root(cx, |window, cx| {
 1712                        let mut workspace = Workspace::new(
 1713                            Some(workspace_id),
 1714                            project_handle.clone(),
 1715                            app_state.clone(),
 1716                            window,
 1717                            cx,
 1718                        );
 1719
 1720                        workspace.centered_layout = centered_layout;
 1721                        workspace
 1722                    });
 1723                })?;
 1724                window
 1725            } else {
 1726                let window_bounds_override = window_bounds_env_override();
 1727
 1728                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1729                    (Some(WindowBounds::Windowed(bounds)), None)
 1730                } else if let Some(workspace) = serialized_workspace.as_ref() {
 1731                    // Reopening an existing workspace - restore its saved bounds
 1732                    if let (Some(display), Some(bounds)) =
 1733                        (workspace.display, workspace.window_bounds.as_ref())
 1734                    {
 1735                        (Some(bounds.0), Some(display))
 1736                    } else {
 1737                        (None, None)
 1738                    }
 1739                } else {
 1740                    // New window - let GPUI's default_bounds() handle cascading
 1741                    (None, None)
 1742                };
 1743
 1744                // Use the serialized workspace to construct the new window
 1745                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1746                options.window_bounds = window_bounds;
 1747                let centered_layout = serialized_workspace
 1748                    .as_ref()
 1749                    .map(|w| w.centered_layout)
 1750                    .unwrap_or(false);
 1751                cx.open_window(options, {
 1752                    let app_state = app_state.clone();
 1753                    let project_handle = project_handle.clone();
 1754                    move |window, cx| {
 1755                        cx.new(|cx| {
 1756                            let mut workspace = Workspace::new(
 1757                                Some(workspace_id),
 1758                                project_handle,
 1759                                app_state,
 1760                                window,
 1761                                cx,
 1762                            );
 1763                            workspace.centered_layout = centered_layout;
 1764                            workspace
 1765                        })
 1766                    }
 1767                })?
 1768            };
 1769
 1770            notify_if_database_failed(window, cx);
 1771            let opened_items = window
 1772                .update(cx, |_workspace, window, cx| {
 1773                    open_items(serialized_workspace, project_paths, window, cx)
 1774                })?
 1775                .await
 1776                .unwrap_or_default();
 1777
 1778            window
 1779                .update(cx, |workspace, window, cx| {
 1780                    window.activate_window();
 1781                    workspace.update_history(cx);
 1782                })
 1783                .log_err();
 1784            Ok((window, opened_items))
 1785        })
 1786    }
 1787
 1788    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1789        self.weak_self.clone()
 1790    }
 1791
 1792    pub fn left_dock(&self) -> &Entity<Dock> {
 1793        &self.left_dock
 1794    }
 1795
 1796    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1797        &self.bottom_dock
 1798    }
 1799
 1800    pub fn set_bottom_dock_layout(
 1801        &mut self,
 1802        layout: BottomDockLayout,
 1803        window: &mut Window,
 1804        cx: &mut Context<Self>,
 1805    ) {
 1806        let fs = self.project().read(cx).fs();
 1807        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1808            content.workspace.bottom_dock_layout = Some(layout);
 1809        });
 1810
 1811        cx.notify();
 1812        self.serialize_workspace(window, cx);
 1813    }
 1814
 1815    pub fn right_dock(&self) -> &Entity<Dock> {
 1816        &self.right_dock
 1817    }
 1818
 1819    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1820        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1821    }
 1822
 1823    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1824        match position {
 1825            DockPosition::Left => &self.left_dock,
 1826            DockPosition::Bottom => &self.bottom_dock,
 1827            DockPosition::Right => &self.right_dock,
 1828        }
 1829    }
 1830
 1831    pub fn is_edited(&self) -> bool {
 1832        self.window_edited
 1833    }
 1834
 1835    pub fn add_panel<T: Panel>(
 1836        &mut self,
 1837        panel: Entity<T>,
 1838        window: &mut Window,
 1839        cx: &mut Context<Self>,
 1840    ) {
 1841        let focus_handle = panel.panel_focus_handle(cx);
 1842        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1843            .detach();
 1844
 1845        let dock_position = panel.position(window, cx);
 1846        let dock = self.dock_at_position(dock_position);
 1847
 1848        dock.update(cx, |dock, cx| {
 1849            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1850        });
 1851    }
 1852
 1853    pub fn remove_panel<T: Panel>(
 1854        &mut self,
 1855        panel: &Entity<T>,
 1856        window: &mut Window,
 1857        cx: &mut Context<Self>,
 1858    ) {
 1859        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1860            dock.update(cx, |dock, cx| {
 1861                dock.remove_panel(panel, window, cx);
 1862            })
 1863        }
 1864    }
 1865
 1866    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1867        &self.status_bar
 1868    }
 1869
 1870    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1871        StatusBarSettings::get_global(cx).show
 1872    }
 1873
 1874    pub fn app_state(&self) -> &Arc<AppState> {
 1875        &self.app_state
 1876    }
 1877
 1878    pub fn user_store(&self) -> &Entity<UserStore> {
 1879        &self.app_state.user_store
 1880    }
 1881
 1882    pub fn project(&self) -> &Entity<Project> {
 1883        &self.project
 1884    }
 1885
 1886    pub fn path_style(&self, cx: &App) -> PathStyle {
 1887        self.project.read(cx).path_style(cx)
 1888    }
 1889
 1890    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1891        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1892
 1893        for pane_handle in &self.panes {
 1894            let pane = pane_handle.read(cx);
 1895
 1896            for entry in pane.activation_history() {
 1897                history.insert(
 1898                    entry.entity_id,
 1899                    history
 1900                        .get(&entry.entity_id)
 1901                        .cloned()
 1902                        .unwrap_or(0)
 1903                        .max(entry.timestamp),
 1904                );
 1905            }
 1906        }
 1907
 1908        history
 1909    }
 1910
 1911    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1912        let mut recent_item: Option<Entity<T>> = None;
 1913        let mut recent_timestamp = 0;
 1914        for pane_handle in &self.panes {
 1915            let pane = pane_handle.read(cx);
 1916            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1917                pane.items().map(|item| (item.item_id(), item)).collect();
 1918            for entry in pane.activation_history() {
 1919                if entry.timestamp > recent_timestamp
 1920                    && let Some(&item) = item_map.get(&entry.entity_id)
 1921                    && let Some(typed_item) = item.act_as::<T>(cx)
 1922                {
 1923                    recent_timestamp = entry.timestamp;
 1924                    recent_item = Some(typed_item);
 1925                }
 1926            }
 1927        }
 1928        recent_item
 1929    }
 1930
 1931    pub fn recent_navigation_history_iter(
 1932        &self,
 1933        cx: &App,
 1934    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1935        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1936        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1937
 1938        for pane in &self.panes {
 1939            let pane = pane.read(cx);
 1940
 1941            pane.nav_history()
 1942                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1943                    if let Some(fs_path) = &fs_path {
 1944                        abs_paths_opened
 1945                            .entry(fs_path.clone())
 1946                            .or_default()
 1947                            .insert(project_path.clone());
 1948                    }
 1949                    let timestamp = entry.timestamp;
 1950                    match history.entry(project_path) {
 1951                        hash_map::Entry::Occupied(mut entry) => {
 1952                            let (_, old_timestamp) = entry.get();
 1953                            if &timestamp > old_timestamp {
 1954                                entry.insert((fs_path, timestamp));
 1955                            }
 1956                        }
 1957                        hash_map::Entry::Vacant(entry) => {
 1958                            entry.insert((fs_path, timestamp));
 1959                        }
 1960                    }
 1961                });
 1962
 1963            if let Some(item) = pane.active_item()
 1964                && let Some(project_path) = item.project_path(cx)
 1965            {
 1966                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 1967
 1968                if let Some(fs_path) = &fs_path {
 1969                    abs_paths_opened
 1970                        .entry(fs_path.clone())
 1971                        .or_default()
 1972                        .insert(project_path.clone());
 1973                }
 1974
 1975                history.insert(project_path, (fs_path, std::usize::MAX));
 1976            }
 1977        }
 1978
 1979        history
 1980            .into_iter()
 1981            .sorted_by_key(|(_, (_, order))| *order)
 1982            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 1983            .rev()
 1984            .filter(move |(history_path, abs_path)| {
 1985                let latest_project_path_opened = abs_path
 1986                    .as_ref()
 1987                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 1988                    .and_then(|project_paths| {
 1989                        project_paths
 1990                            .iter()
 1991                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 1992                    });
 1993
 1994                latest_project_path_opened.is_none_or(|path| path == history_path)
 1995            })
 1996    }
 1997
 1998    pub fn recent_navigation_history(
 1999        &self,
 2000        limit: Option<usize>,
 2001        cx: &App,
 2002    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2003        self.recent_navigation_history_iter(cx)
 2004            .take(limit.unwrap_or(usize::MAX))
 2005            .collect()
 2006    }
 2007
 2008    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2009        for pane in &self.panes {
 2010            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2011        }
 2012    }
 2013
 2014    fn navigate_history(
 2015        &mut self,
 2016        pane: WeakEntity<Pane>,
 2017        mode: NavigationMode,
 2018        window: &mut Window,
 2019        cx: &mut Context<Workspace>,
 2020    ) -> Task<Result<()>> {
 2021        let to_load = if let Some(pane) = pane.upgrade() {
 2022            pane.update(cx, |pane, cx| {
 2023                window.focus(&pane.focus_handle(cx));
 2024                loop {
 2025                    // Retrieve the weak item handle from the history.
 2026                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2027
 2028                    // If the item is still present in this pane, then activate it.
 2029                    if let Some(index) = entry
 2030                        .item
 2031                        .upgrade()
 2032                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2033                    {
 2034                        let prev_active_item_index = pane.active_item_index();
 2035                        pane.nav_history_mut().set_mode(mode);
 2036                        pane.activate_item(index, true, true, window, cx);
 2037                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2038
 2039                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2040                        if let Some(data) = entry.data {
 2041                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2042                        }
 2043
 2044                        if navigated {
 2045                            break None;
 2046                        }
 2047                    } else {
 2048                        // If the item is no longer present in this pane, then retrieve its
 2049                        // path info in order to reopen it.
 2050                        break pane
 2051                            .nav_history()
 2052                            .path_for_item(entry.item.id())
 2053                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2054                    }
 2055                }
 2056            })
 2057        } else {
 2058            None
 2059        };
 2060
 2061        if let Some((project_path, abs_path, entry)) = to_load {
 2062            // If the item was no longer present, then load it again from its previous path, first try the local path
 2063            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2064
 2065            cx.spawn_in(window, async move  |workspace, cx| {
 2066                let open_by_project_path = open_by_project_path.await;
 2067                let mut navigated = false;
 2068                match open_by_project_path
 2069                    .with_context(|| format!("Navigating to {project_path:?}"))
 2070                {
 2071                    Ok((project_entry_id, build_item)) => {
 2072                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2073                            pane.nav_history_mut().set_mode(mode);
 2074                            pane.active_item().map(|p| p.item_id())
 2075                        })?;
 2076
 2077                        pane.update_in(cx, |pane, window, cx| {
 2078                            let item = pane.open_item(
 2079                                project_entry_id,
 2080                                project_path,
 2081                                true,
 2082                                entry.is_preview,
 2083                                true,
 2084                                None,
 2085                                window, cx,
 2086                                build_item,
 2087                            );
 2088                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2089                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2090                            if let Some(data) = entry.data {
 2091                                navigated |= item.navigate(data, window, cx);
 2092                            }
 2093                        })?;
 2094                    }
 2095                    Err(open_by_project_path_e) => {
 2096                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2097                        // and its worktree is now dropped
 2098                        if let Some(abs_path) = abs_path {
 2099                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2100                                pane.nav_history_mut().set_mode(mode);
 2101                                pane.active_item().map(|p| p.item_id())
 2102                            })?;
 2103                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2104                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2105                            })?;
 2106                            match open_by_abs_path
 2107                                .await
 2108                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2109                            {
 2110                                Ok(item) => {
 2111                                    pane.update_in(cx, |pane, window, cx| {
 2112                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2113                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2114                                        if let Some(data) = entry.data {
 2115                                            navigated |= item.navigate(data, window, cx);
 2116                                        }
 2117                                    })?;
 2118                                }
 2119                                Err(open_by_abs_path_e) => {
 2120                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2121                                }
 2122                            }
 2123                        }
 2124                    }
 2125                }
 2126
 2127                if !navigated {
 2128                    workspace
 2129                        .update_in(cx, |workspace, window, cx| {
 2130                            Self::navigate_history(workspace, pane, mode, window, cx)
 2131                        })?
 2132                        .await?;
 2133                }
 2134
 2135                Ok(())
 2136            })
 2137        } else {
 2138            Task::ready(Ok(()))
 2139        }
 2140    }
 2141
 2142    pub fn go_back(
 2143        &mut self,
 2144        pane: WeakEntity<Pane>,
 2145        window: &mut Window,
 2146        cx: &mut Context<Workspace>,
 2147    ) -> Task<Result<()>> {
 2148        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2149    }
 2150
 2151    pub fn go_forward(
 2152        &mut self,
 2153        pane: WeakEntity<Pane>,
 2154        window: &mut Window,
 2155        cx: &mut Context<Workspace>,
 2156    ) -> Task<Result<()>> {
 2157        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2158    }
 2159
 2160    pub fn reopen_closed_item(
 2161        &mut self,
 2162        window: &mut Window,
 2163        cx: &mut Context<Workspace>,
 2164    ) -> Task<Result<()>> {
 2165        self.navigate_history(
 2166            self.active_pane().downgrade(),
 2167            NavigationMode::ReopeningClosedItem,
 2168            window,
 2169            cx,
 2170        )
 2171    }
 2172
 2173    pub fn client(&self) -> &Arc<Client> {
 2174        &self.app_state.client
 2175    }
 2176
 2177    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2178        self.titlebar_item = Some(item);
 2179        cx.notify();
 2180    }
 2181
 2182    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2183        self.on_prompt_for_new_path = Some(prompt)
 2184    }
 2185
 2186    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2187        self.on_prompt_for_open_path = Some(prompt)
 2188    }
 2189
 2190    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2191        self.terminal_provider = Some(Box::new(provider));
 2192    }
 2193
 2194    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2195        self.debugger_provider = Some(Arc::new(provider));
 2196    }
 2197
 2198    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2199        self.debugger_provider.clone()
 2200    }
 2201
 2202    pub fn prompt_for_open_path(
 2203        &mut self,
 2204        path_prompt_options: PathPromptOptions,
 2205        lister: DirectoryLister,
 2206        window: &mut Window,
 2207        cx: &mut Context<Self>,
 2208    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2209        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2210            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2211            let rx = prompt(self, lister, window, cx);
 2212            self.on_prompt_for_open_path = Some(prompt);
 2213            rx
 2214        } else {
 2215            let (tx, rx) = oneshot::channel();
 2216            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2217
 2218            cx.spawn_in(window, async move |workspace, cx| {
 2219                let Ok(result) = abs_path.await else {
 2220                    return Ok(());
 2221                };
 2222
 2223                match result {
 2224                    Ok(result) => {
 2225                        tx.send(result).ok();
 2226                    }
 2227                    Err(err) => {
 2228                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2229                            workspace.show_portal_error(err.to_string(), cx);
 2230                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2231                            let rx = prompt(workspace, lister, window, cx);
 2232                            workspace.on_prompt_for_open_path = Some(prompt);
 2233                            rx
 2234                        })?;
 2235                        if let Ok(path) = rx.await {
 2236                            tx.send(path).ok();
 2237                        }
 2238                    }
 2239                };
 2240                anyhow::Ok(())
 2241            })
 2242            .detach();
 2243
 2244            rx
 2245        }
 2246    }
 2247
 2248    pub fn prompt_for_new_path(
 2249        &mut self,
 2250        lister: DirectoryLister,
 2251        suggested_name: Option<String>,
 2252        window: &mut Window,
 2253        cx: &mut Context<Self>,
 2254    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2255        if self.project.read(cx).is_via_collab()
 2256            || self.project.read(cx).is_via_remote_server()
 2257            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2258        {
 2259            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2260            let rx = prompt(self, lister, window, cx);
 2261            self.on_prompt_for_new_path = Some(prompt);
 2262            return rx;
 2263        }
 2264
 2265        let (tx, rx) = oneshot::channel();
 2266        cx.spawn_in(window, async move |workspace, cx| {
 2267            let abs_path = workspace.update(cx, |workspace, cx| {
 2268                let relative_to = workspace
 2269                    .most_recent_active_path(cx)
 2270                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2271                    .or_else(|| {
 2272                        let project = workspace.project.read(cx);
 2273                        project.visible_worktrees(cx).find_map(|worktree| {
 2274                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2275                        })
 2276                    })
 2277                    .or_else(std::env::home_dir)
 2278                    .unwrap_or_else(|| PathBuf::from(""));
 2279                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2280            })?;
 2281            let abs_path = match abs_path.await? {
 2282                Ok(path) => path,
 2283                Err(err) => {
 2284                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2285                        workspace.show_portal_error(err.to_string(), cx);
 2286
 2287                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2288                        let rx = prompt(workspace, lister, window, cx);
 2289                        workspace.on_prompt_for_new_path = Some(prompt);
 2290                        rx
 2291                    })?;
 2292                    if let Ok(path) = rx.await {
 2293                        tx.send(path).ok();
 2294                    }
 2295                    return anyhow::Ok(());
 2296                }
 2297            };
 2298
 2299            tx.send(abs_path.map(|path| vec![path])).ok();
 2300            anyhow::Ok(())
 2301        })
 2302        .detach();
 2303
 2304        rx
 2305    }
 2306
 2307    pub fn titlebar_item(&self) -> Option<AnyView> {
 2308        self.titlebar_item.clone()
 2309    }
 2310
 2311    /// Call the given callback with a workspace whose project is local.
 2312    ///
 2313    /// If the given workspace has a local project, then it will be passed
 2314    /// to the callback. Otherwise, a new empty window will be created.
 2315    pub fn with_local_workspace<T, F>(
 2316        &mut self,
 2317        window: &mut Window,
 2318        cx: &mut Context<Self>,
 2319        callback: F,
 2320    ) -> Task<Result<T>>
 2321    where
 2322        T: 'static,
 2323        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2324    {
 2325        if self.project.read(cx).is_local() {
 2326            Task::ready(Ok(callback(self, window, cx)))
 2327        } else {
 2328            let env = self.project.read(cx).cli_environment(cx);
 2329            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, cx);
 2330            cx.spawn_in(window, async move |_vh, cx| {
 2331                let (workspace, _) = task.await?;
 2332                workspace.update(cx, callback)
 2333            })
 2334        }
 2335    }
 2336
 2337    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2338        self.project.read(cx).worktrees(cx)
 2339    }
 2340
 2341    pub fn visible_worktrees<'a>(
 2342        &self,
 2343        cx: &'a App,
 2344    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2345        self.project.read(cx).visible_worktrees(cx)
 2346    }
 2347
 2348    #[cfg(any(test, feature = "test-support"))]
 2349    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2350        let futures = self
 2351            .worktrees(cx)
 2352            .filter_map(|worktree| worktree.read(cx).as_local())
 2353            .map(|worktree| worktree.scan_complete())
 2354            .collect::<Vec<_>>();
 2355        async move {
 2356            for future in futures {
 2357                future.await;
 2358            }
 2359        }
 2360    }
 2361
 2362    pub fn close_global(cx: &mut App) {
 2363        cx.defer(|cx| {
 2364            cx.windows().iter().find(|window| {
 2365                window
 2366                    .update(cx, |_, window, _| {
 2367                        if window.is_window_active() {
 2368                            //This can only get called when the window's project connection has been lost
 2369                            //so we don't need to prompt the user for anything and instead just close the window
 2370                            window.remove_window();
 2371                            true
 2372                        } else {
 2373                            false
 2374                        }
 2375                    })
 2376                    .unwrap_or(false)
 2377            });
 2378        });
 2379    }
 2380
 2381    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2382        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2383        cx.spawn_in(window, async move |_, cx| {
 2384            if prepare.await? {
 2385                cx.update(|window, _cx| window.remove_window())?;
 2386            }
 2387            anyhow::Ok(())
 2388        })
 2389        .detach_and_log_err(cx)
 2390    }
 2391
 2392    pub fn move_focused_panel_to_next_position(
 2393        &mut self,
 2394        _: &MoveFocusedPanelToNextPosition,
 2395        window: &mut Window,
 2396        cx: &mut Context<Self>,
 2397    ) {
 2398        let docks = self.all_docks();
 2399        let active_dock = docks
 2400            .into_iter()
 2401            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2402
 2403        if let Some(dock) = active_dock {
 2404            dock.update(cx, |dock, cx| {
 2405                let active_panel = dock
 2406                    .active_panel()
 2407                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2408
 2409                if let Some(panel) = active_panel {
 2410                    panel.move_to_next_position(window, cx);
 2411                }
 2412            })
 2413        }
 2414    }
 2415
 2416    pub fn prepare_to_close(
 2417        &mut self,
 2418        close_intent: CloseIntent,
 2419        window: &mut Window,
 2420        cx: &mut Context<Self>,
 2421    ) -> Task<Result<bool>> {
 2422        let active_call = self.active_call().cloned();
 2423
 2424        cx.spawn_in(window, async move |this, cx| {
 2425            this.update(cx, |this, _| {
 2426                if close_intent == CloseIntent::CloseWindow {
 2427                    this.removing = true;
 2428                }
 2429            })?;
 2430
 2431            let workspace_count = cx.update(|_window, cx| {
 2432                cx.windows()
 2433                    .iter()
 2434                    .filter(|window| window.downcast::<Workspace>().is_some())
 2435                    .count()
 2436            })?;
 2437
 2438            #[cfg(target_os = "macos")]
 2439            let save_last_workspace = false;
 2440
 2441            // On Linux and Windows, closing the last window should restore the last workspace.
 2442            #[cfg(not(target_os = "macos"))]
 2443            let save_last_workspace = {
 2444                let remaining_workspaces = cx.update(|_window, cx| {
 2445                    cx.windows()
 2446                        .iter()
 2447                        .filter_map(|window| window.downcast::<Workspace>())
 2448                        .filter_map(|workspace| {
 2449                            workspace
 2450                                .update(cx, |workspace, _, _| workspace.removing)
 2451                                .ok()
 2452                        })
 2453                        .filter(|removing| !removing)
 2454                        .count()
 2455                })?;
 2456
 2457                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2458            };
 2459
 2460            if let Some(active_call) = active_call
 2461                && workspace_count == 1
 2462                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2463            {
 2464                if close_intent == CloseIntent::CloseWindow {
 2465                    let answer = cx.update(|window, cx| {
 2466                        window.prompt(
 2467                            PromptLevel::Warning,
 2468                            "Do you want to leave the current call?",
 2469                            None,
 2470                            &["Close window and hang up", "Cancel"],
 2471                            cx,
 2472                        )
 2473                    })?;
 2474
 2475                    if answer.await.log_err() == Some(1) {
 2476                        return anyhow::Ok(false);
 2477                    } else {
 2478                        active_call
 2479                            .update(cx, |call, cx| call.hang_up(cx))?
 2480                            .await
 2481                            .log_err();
 2482                    }
 2483                }
 2484                if close_intent == CloseIntent::ReplaceWindow {
 2485                    _ = active_call.update(cx, |this, cx| {
 2486                        let workspace = cx
 2487                            .windows()
 2488                            .iter()
 2489                            .filter_map(|window| window.downcast::<Workspace>())
 2490                            .next()
 2491                            .unwrap();
 2492                        let project = workspace.read(cx)?.project.clone();
 2493                        if project.read(cx).is_shared() {
 2494                            this.unshare_project(project, cx)?;
 2495                        }
 2496                        Ok::<_, anyhow::Error>(())
 2497                    })?;
 2498                }
 2499            }
 2500
 2501            let save_result = this
 2502                .update_in(cx, |this, window, cx| {
 2503                    this.save_all_internal(SaveIntent::Close, window, cx)
 2504                })?
 2505                .await;
 2506
 2507            // If we're not quitting, but closing, we remove the workspace from
 2508            // the current session.
 2509            if close_intent != CloseIntent::Quit
 2510                && !save_last_workspace
 2511                && save_result.as_ref().is_ok_and(|&res| res)
 2512            {
 2513                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2514                    .await;
 2515            }
 2516
 2517            save_result
 2518        })
 2519    }
 2520
 2521    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2522        self.save_all_internal(
 2523            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2524            window,
 2525            cx,
 2526        )
 2527        .detach_and_log_err(cx);
 2528    }
 2529
 2530    fn send_keystrokes(
 2531        &mut self,
 2532        action: &SendKeystrokes,
 2533        window: &mut Window,
 2534        cx: &mut Context<Self>,
 2535    ) {
 2536        let keystrokes: Vec<Keystroke> = action
 2537            .0
 2538            .split(' ')
 2539            .flat_map(|k| Keystroke::parse(k).log_err())
 2540            .map(|k| {
 2541                cx.keyboard_mapper()
 2542                    .map_key_equivalent(k, true)
 2543                    .inner()
 2544                    .clone()
 2545            })
 2546            .collect();
 2547        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2548    }
 2549
 2550    pub fn send_keystrokes_impl(
 2551        &mut self,
 2552        keystrokes: Vec<Keystroke>,
 2553        window: &mut Window,
 2554        cx: &mut Context<Self>,
 2555    ) -> Shared<Task<()>> {
 2556        let mut state = self.dispatching_keystrokes.borrow_mut();
 2557        if !state.dispatched.insert(keystrokes.clone()) {
 2558            cx.propagate();
 2559            return state.task.clone().unwrap();
 2560        }
 2561
 2562        state.queue.extend(keystrokes);
 2563
 2564        let keystrokes = self.dispatching_keystrokes.clone();
 2565        if state.task.is_none() {
 2566            state.task = Some(
 2567                window
 2568                    .spawn(cx, async move |cx| {
 2569                        // limit to 100 keystrokes to avoid infinite recursion.
 2570                        for _ in 0..100 {
 2571                            let mut state = keystrokes.borrow_mut();
 2572                            let Some(keystroke) = state.queue.pop_front() else {
 2573                                state.dispatched.clear();
 2574                                state.task.take();
 2575                                return;
 2576                            };
 2577                            drop(state);
 2578                            cx.update(|window, cx| {
 2579                                let focused = window.focused(cx);
 2580                                window.dispatch_keystroke(keystroke.clone(), cx);
 2581                                if window.focused(cx) != focused {
 2582                                    // dispatch_keystroke may cause the focus to change.
 2583                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2584                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2585                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2586                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2587                                    // )
 2588                                    window.draw(cx).clear();
 2589                                }
 2590                            })
 2591                            .ok();
 2592                        }
 2593
 2594                        *keystrokes.borrow_mut() = Default::default();
 2595                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2596                    })
 2597                    .shared(),
 2598            );
 2599        }
 2600        state.task.clone().unwrap()
 2601    }
 2602
 2603    fn save_all_internal(
 2604        &mut self,
 2605        mut save_intent: SaveIntent,
 2606        window: &mut Window,
 2607        cx: &mut Context<Self>,
 2608    ) -> Task<Result<bool>> {
 2609        if self.project.read(cx).is_disconnected(cx) {
 2610            return Task::ready(Ok(true));
 2611        }
 2612        let dirty_items = self
 2613            .panes
 2614            .iter()
 2615            .flat_map(|pane| {
 2616                pane.read(cx).items().filter_map(|item| {
 2617                    if item.is_dirty(cx) {
 2618                        item.tab_content_text(0, cx);
 2619                        Some((pane.downgrade(), item.boxed_clone()))
 2620                    } else {
 2621                        None
 2622                    }
 2623                })
 2624            })
 2625            .collect::<Vec<_>>();
 2626
 2627        let project = self.project.clone();
 2628        cx.spawn_in(window, async move |workspace, cx| {
 2629            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2630                let (serialize_tasks, remaining_dirty_items) =
 2631                    workspace.update_in(cx, |workspace, window, cx| {
 2632                        let mut remaining_dirty_items = Vec::new();
 2633                        let mut serialize_tasks = Vec::new();
 2634                        for (pane, item) in dirty_items {
 2635                            if let Some(task) = item
 2636                                .to_serializable_item_handle(cx)
 2637                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2638                            {
 2639                                serialize_tasks.push(task);
 2640                            } else {
 2641                                remaining_dirty_items.push((pane, item));
 2642                            }
 2643                        }
 2644                        (serialize_tasks, remaining_dirty_items)
 2645                    })?;
 2646
 2647                futures::future::try_join_all(serialize_tasks).await?;
 2648
 2649                if remaining_dirty_items.len() > 1 {
 2650                    let answer = workspace.update_in(cx, |_, window, cx| {
 2651                        let detail = Pane::file_names_for_prompt(
 2652                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2653                            cx,
 2654                        );
 2655                        window.prompt(
 2656                            PromptLevel::Warning,
 2657                            "Do you want to save all changes in the following files?",
 2658                            Some(&detail),
 2659                            &["Save all", "Discard all", "Cancel"],
 2660                            cx,
 2661                        )
 2662                    })?;
 2663                    match answer.await.log_err() {
 2664                        Some(0) => save_intent = SaveIntent::SaveAll,
 2665                        Some(1) => save_intent = SaveIntent::Skip,
 2666                        Some(2) => return Ok(false),
 2667                        _ => {}
 2668                    }
 2669                }
 2670
 2671                remaining_dirty_items
 2672            } else {
 2673                dirty_items
 2674            };
 2675
 2676            for (pane, item) in dirty_items {
 2677                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2678                    (
 2679                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2680                        item.project_entry_ids(cx),
 2681                    )
 2682                })?;
 2683                if (singleton || !project_entry_ids.is_empty())
 2684                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2685                {
 2686                    return Ok(false);
 2687                }
 2688            }
 2689            Ok(true)
 2690        })
 2691    }
 2692
 2693    pub fn open_workspace_for_paths(
 2694        &mut self,
 2695        replace_current_window: bool,
 2696        paths: Vec<PathBuf>,
 2697        window: &mut Window,
 2698        cx: &mut Context<Self>,
 2699    ) -> Task<Result<()>> {
 2700        let window_handle = window.window_handle().downcast::<Self>();
 2701        let is_remote = self.project.read(cx).is_via_collab();
 2702        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2703        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2704
 2705        let window_to_replace = if replace_current_window {
 2706            window_handle
 2707        } else if is_remote || has_worktree || has_dirty_items {
 2708            None
 2709        } else {
 2710            window_handle
 2711        };
 2712        let app_state = self.app_state.clone();
 2713
 2714        cx.spawn(async move |_, cx| {
 2715            cx.update(|cx| {
 2716                open_paths(
 2717                    &paths,
 2718                    app_state,
 2719                    OpenOptions {
 2720                        replace_window: window_to_replace,
 2721                        ..Default::default()
 2722                    },
 2723                    cx,
 2724                )
 2725            })?
 2726            .await?;
 2727            Ok(())
 2728        })
 2729    }
 2730
 2731    #[allow(clippy::type_complexity)]
 2732    pub fn open_paths(
 2733        &mut self,
 2734        mut abs_paths: Vec<PathBuf>,
 2735        options: OpenOptions,
 2736        pane: Option<WeakEntity<Pane>>,
 2737        window: &mut Window,
 2738        cx: &mut Context<Self>,
 2739    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2740        let fs = self.app_state.fs.clone();
 2741
 2742        // Sort the paths to ensure we add worktrees for parents before their children.
 2743        abs_paths.sort_unstable();
 2744        cx.spawn_in(window, async move |this, cx| {
 2745            let mut tasks = Vec::with_capacity(abs_paths.len());
 2746
 2747            for abs_path in &abs_paths {
 2748                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2749                    OpenVisible::All => Some(true),
 2750                    OpenVisible::None => Some(false),
 2751                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2752                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2753                        Some(None) => Some(true),
 2754                        None => None,
 2755                    },
 2756                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2757                        Some(Some(metadata)) => Some(metadata.is_dir),
 2758                        Some(None) => Some(false),
 2759                        None => None,
 2760                    },
 2761                };
 2762                let project_path = match visible {
 2763                    Some(visible) => match this
 2764                        .update(cx, |this, cx| {
 2765                            Workspace::project_path_for_path(
 2766                                this.project.clone(),
 2767                                abs_path,
 2768                                visible,
 2769                                cx,
 2770                            )
 2771                        })
 2772                        .log_err()
 2773                    {
 2774                        Some(project_path) => project_path.await.log_err(),
 2775                        None => None,
 2776                    },
 2777                    None => None,
 2778                };
 2779
 2780                let this = this.clone();
 2781                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2782                let fs = fs.clone();
 2783                let pane = pane.clone();
 2784                let task = cx.spawn(async move |cx| {
 2785                    let (worktree, project_path) = project_path?;
 2786                    if fs.is_dir(&abs_path).await {
 2787                        this.update(cx, |workspace, cx| {
 2788                            let worktree = worktree.read(cx);
 2789                            let worktree_abs_path = worktree.abs_path();
 2790                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2791                                worktree.root_entry()
 2792                            } else {
 2793                                abs_path
 2794                                    .strip_prefix(worktree_abs_path.as_ref())
 2795                                    .ok()
 2796                                    .and_then(|relative_path| {
 2797                                        let relative_path =
 2798                                            RelPath::new(relative_path, PathStyle::local())
 2799                                                .log_err()?;
 2800                                        worktree.entry_for_path(&relative_path)
 2801                                    })
 2802                            }
 2803                            .map(|entry| entry.id);
 2804                            if let Some(entry_id) = entry_id {
 2805                                workspace.project.update(cx, |_, cx| {
 2806                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2807                                })
 2808                            }
 2809                        })
 2810                        .ok()?;
 2811                        None
 2812                    } else {
 2813                        Some(
 2814                            this.update_in(cx, |this, window, cx| {
 2815                                this.open_path(
 2816                                    project_path,
 2817                                    pane,
 2818                                    options.focus.unwrap_or(true),
 2819                                    window,
 2820                                    cx,
 2821                                )
 2822                            })
 2823                            .ok()?
 2824                            .await,
 2825                        )
 2826                    }
 2827                });
 2828                tasks.push(task);
 2829            }
 2830
 2831            futures::future::join_all(tasks).await
 2832        })
 2833    }
 2834
 2835    pub fn open_resolved_path(
 2836        &mut self,
 2837        path: ResolvedPath,
 2838        window: &mut Window,
 2839        cx: &mut Context<Self>,
 2840    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2841        match path {
 2842            ResolvedPath::ProjectPath { project_path, .. } => {
 2843                self.open_path(project_path, None, true, window, cx)
 2844            }
 2845            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2846                PathBuf::from(path),
 2847                OpenOptions {
 2848                    visible: Some(OpenVisible::None),
 2849                    ..Default::default()
 2850                },
 2851                window,
 2852                cx,
 2853            ),
 2854        }
 2855    }
 2856
 2857    pub fn absolute_path_of_worktree(
 2858        &self,
 2859        worktree_id: WorktreeId,
 2860        cx: &mut Context<Self>,
 2861    ) -> Option<PathBuf> {
 2862        self.project
 2863            .read(cx)
 2864            .worktree_for_id(worktree_id, cx)
 2865            // TODO: use `abs_path` or `root_dir`
 2866            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2867    }
 2868
 2869    fn add_folder_to_project(
 2870        &mut self,
 2871        _: &AddFolderToProject,
 2872        window: &mut Window,
 2873        cx: &mut Context<Self>,
 2874    ) {
 2875        let project = self.project.read(cx);
 2876        if project.is_via_collab() {
 2877            self.show_error(
 2878                &anyhow!("You cannot add folders to someone else's project"),
 2879                cx,
 2880            );
 2881            return;
 2882        }
 2883        let paths = self.prompt_for_open_path(
 2884            PathPromptOptions {
 2885                files: false,
 2886                directories: true,
 2887                multiple: true,
 2888                prompt: None,
 2889            },
 2890            DirectoryLister::Project(self.project.clone()),
 2891            window,
 2892            cx,
 2893        );
 2894        cx.spawn_in(window, async move |this, cx| {
 2895            if let Some(paths) = paths.await.log_err().flatten() {
 2896                let results = this
 2897                    .update_in(cx, |this, window, cx| {
 2898                        this.open_paths(
 2899                            paths,
 2900                            OpenOptions {
 2901                                visible: Some(OpenVisible::All),
 2902                                ..Default::default()
 2903                            },
 2904                            None,
 2905                            window,
 2906                            cx,
 2907                        )
 2908                    })?
 2909                    .await;
 2910                for result in results.into_iter().flatten() {
 2911                    result.log_err();
 2912                }
 2913            }
 2914            anyhow::Ok(())
 2915        })
 2916        .detach_and_log_err(cx);
 2917    }
 2918
 2919    pub fn project_path_for_path(
 2920        project: Entity<Project>,
 2921        abs_path: &Path,
 2922        visible: bool,
 2923        cx: &mut App,
 2924    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2925        let entry = project.update(cx, |project, cx| {
 2926            project.find_or_create_worktree(abs_path, visible, cx)
 2927        });
 2928        cx.spawn(async move |cx| {
 2929            let (worktree, path) = entry.await?;
 2930            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2931            Ok((
 2932                worktree,
 2933                ProjectPath {
 2934                    worktree_id,
 2935                    path: path,
 2936                },
 2937            ))
 2938        })
 2939    }
 2940
 2941    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2942        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2943    }
 2944
 2945    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 2946        self.items_of_type(cx).max_by_key(|item| item.item_id())
 2947    }
 2948
 2949    pub fn items_of_type<'a, T: Item>(
 2950        &'a self,
 2951        cx: &'a App,
 2952    ) -> impl 'a + Iterator<Item = Entity<T>> {
 2953        self.panes
 2954            .iter()
 2955            .flat_map(|pane| pane.read(cx).items_of_type())
 2956    }
 2957
 2958    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 2959        self.active_pane().read(cx).active_item()
 2960    }
 2961
 2962    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 2963        let item = self.active_item(cx)?;
 2964        item.to_any_view().downcast::<I>().ok()
 2965    }
 2966
 2967    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 2968        self.active_item(cx).and_then(|item| item.project_path(cx))
 2969    }
 2970
 2971    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 2972        self.recent_navigation_history_iter(cx)
 2973            .filter_map(|(path, abs_path)| {
 2974                let worktree = self
 2975                    .project
 2976                    .read(cx)
 2977                    .worktree_for_id(path.worktree_id, cx)?;
 2978                if worktree.read(cx).is_visible() {
 2979                    abs_path
 2980                } else {
 2981                    None
 2982                }
 2983            })
 2984            .next()
 2985    }
 2986
 2987    pub fn save_active_item(
 2988        &mut self,
 2989        save_intent: SaveIntent,
 2990        window: &mut Window,
 2991        cx: &mut App,
 2992    ) -> Task<Result<()>> {
 2993        let project = self.project.clone();
 2994        let pane = self.active_pane();
 2995        let item = pane.read(cx).active_item();
 2996        let pane = pane.downgrade();
 2997
 2998        window.spawn(cx, async move |cx| {
 2999            if let Some(item) = item {
 3000                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3001                    .await
 3002                    .map(|_| ())
 3003            } else {
 3004                Ok(())
 3005            }
 3006        })
 3007    }
 3008
 3009    pub fn close_inactive_items_and_panes(
 3010        &mut self,
 3011        action: &CloseInactiveTabsAndPanes,
 3012        window: &mut Window,
 3013        cx: &mut Context<Self>,
 3014    ) {
 3015        if let Some(task) = self.close_all_internal(
 3016            true,
 3017            action.save_intent.unwrap_or(SaveIntent::Close),
 3018            window,
 3019            cx,
 3020        ) {
 3021            task.detach_and_log_err(cx)
 3022        }
 3023    }
 3024
 3025    pub fn close_all_items_and_panes(
 3026        &mut self,
 3027        action: &CloseAllItemsAndPanes,
 3028        window: &mut Window,
 3029        cx: &mut Context<Self>,
 3030    ) {
 3031        if let Some(task) = self.close_all_internal(
 3032            false,
 3033            action.save_intent.unwrap_or(SaveIntent::Close),
 3034            window,
 3035            cx,
 3036        ) {
 3037            task.detach_and_log_err(cx)
 3038        }
 3039    }
 3040
 3041    fn close_all_internal(
 3042        &mut self,
 3043        retain_active_pane: bool,
 3044        save_intent: SaveIntent,
 3045        window: &mut Window,
 3046        cx: &mut Context<Self>,
 3047    ) -> Option<Task<Result<()>>> {
 3048        let current_pane = self.active_pane();
 3049
 3050        let mut tasks = Vec::new();
 3051
 3052        if retain_active_pane {
 3053            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3054                pane.close_other_items(
 3055                    &CloseOtherItems {
 3056                        save_intent: None,
 3057                        close_pinned: false,
 3058                    },
 3059                    None,
 3060                    window,
 3061                    cx,
 3062                )
 3063            });
 3064
 3065            tasks.push(current_pane_close);
 3066        }
 3067
 3068        for pane in self.panes() {
 3069            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3070                continue;
 3071            }
 3072
 3073            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3074                pane.close_all_items(
 3075                    &CloseAllItems {
 3076                        save_intent: Some(save_intent),
 3077                        close_pinned: false,
 3078                    },
 3079                    window,
 3080                    cx,
 3081                )
 3082            });
 3083
 3084            tasks.push(close_pane_items)
 3085        }
 3086
 3087        if tasks.is_empty() {
 3088            None
 3089        } else {
 3090            Some(cx.spawn_in(window, async move |_, _| {
 3091                for task in tasks {
 3092                    task.await?
 3093                }
 3094                Ok(())
 3095            }))
 3096        }
 3097    }
 3098
 3099    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3100        self.dock_at_position(position).read(cx).is_open()
 3101    }
 3102
 3103    pub fn toggle_dock(
 3104        &mut self,
 3105        dock_side: DockPosition,
 3106        window: &mut Window,
 3107        cx: &mut Context<Self>,
 3108    ) {
 3109        let mut focus_center = false;
 3110        let mut reveal_dock = false;
 3111
 3112        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3113        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3114        if was_visible {
 3115            self.save_open_dock_positions(cx);
 3116        }
 3117
 3118        let dock = self.dock_at_position(dock_side);
 3119        dock.update(cx, |dock, cx| {
 3120            dock.set_open(!was_visible, window, cx);
 3121
 3122            if dock.active_panel().is_none() {
 3123                let Some(panel_ix) = dock
 3124                    .first_enabled_panel_idx(cx)
 3125                    .log_with_level(log::Level::Info)
 3126                else {
 3127                    return;
 3128                };
 3129                dock.activate_panel(panel_ix, window, cx);
 3130            }
 3131
 3132            if let Some(active_panel) = dock.active_panel() {
 3133                if was_visible {
 3134                    if active_panel
 3135                        .panel_focus_handle(cx)
 3136                        .contains_focused(window, cx)
 3137                    {
 3138                        focus_center = true;
 3139                    }
 3140                } else {
 3141                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3142                    window.focus(focus_handle);
 3143                    reveal_dock = true;
 3144                }
 3145            }
 3146        });
 3147
 3148        if reveal_dock {
 3149            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3150        }
 3151
 3152        if focus_center {
 3153            self.active_pane
 3154                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3155        }
 3156
 3157        cx.notify();
 3158        self.serialize_workspace(window, cx);
 3159    }
 3160
 3161    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3162        self.all_docks().into_iter().find(|&dock| {
 3163            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3164        })
 3165    }
 3166
 3167    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3168        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3169            self.save_open_dock_positions(cx);
 3170            dock.update(cx, |dock, cx| {
 3171                dock.set_open(false, window, cx);
 3172            });
 3173            return true;
 3174        }
 3175        false
 3176    }
 3177
 3178    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3179        self.save_open_dock_positions(cx);
 3180        for dock in self.all_docks() {
 3181            dock.update(cx, |dock, cx| {
 3182                dock.set_open(false, window, cx);
 3183            });
 3184        }
 3185
 3186        cx.focus_self(window);
 3187        cx.notify();
 3188        self.serialize_workspace(window, cx);
 3189    }
 3190
 3191    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3192        self.all_docks()
 3193            .into_iter()
 3194            .filter_map(|dock| {
 3195                let dock_ref = dock.read(cx);
 3196                if dock_ref.is_open() {
 3197                    Some(dock_ref.position())
 3198                } else {
 3199                    None
 3200                }
 3201            })
 3202            .collect()
 3203    }
 3204
 3205    /// Saves the positions of currently open docks.
 3206    ///
 3207    /// Updates `last_open_dock_positions` with positions of all currently open
 3208    /// docks, to later be restored by the 'Toggle All Docks' action.
 3209    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3210        let open_dock_positions = self.get_open_dock_positions(cx);
 3211        if !open_dock_positions.is_empty() {
 3212            self.last_open_dock_positions = open_dock_positions;
 3213        }
 3214    }
 3215
 3216    /// Toggles all docks between open and closed states.
 3217    ///
 3218    /// If any docks are open, closes all and remembers their positions. If all
 3219    /// docks are closed, restores the last remembered dock configuration.
 3220    fn toggle_all_docks(
 3221        &mut self,
 3222        _: &ToggleAllDocks,
 3223        window: &mut Window,
 3224        cx: &mut Context<Self>,
 3225    ) {
 3226        let open_dock_positions = self.get_open_dock_positions(cx);
 3227
 3228        if !open_dock_positions.is_empty() {
 3229            self.close_all_docks(window, cx);
 3230        } else if !self.last_open_dock_positions.is_empty() {
 3231            self.restore_last_open_docks(window, cx);
 3232        }
 3233    }
 3234
 3235    /// Reopens docks from the most recently remembered configuration.
 3236    ///
 3237    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3238    /// and clears the stored positions.
 3239    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3240        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3241
 3242        for position in positions_to_open {
 3243            let dock = self.dock_at_position(position);
 3244            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3245        }
 3246
 3247        cx.focus_self(window);
 3248        cx.notify();
 3249        self.serialize_workspace(window, cx);
 3250    }
 3251
 3252    /// Transfer focus to the panel of the given type.
 3253    pub fn focus_panel<T: Panel>(
 3254        &mut self,
 3255        window: &mut Window,
 3256        cx: &mut Context<Self>,
 3257    ) -> Option<Entity<T>> {
 3258        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3259        panel.to_any().downcast().ok()
 3260    }
 3261
 3262    /// Focus the panel of the given type if it isn't already focused. If it is
 3263    /// already focused, then transfer focus back to the workspace center.
 3264    pub fn toggle_panel_focus<T: Panel>(
 3265        &mut self,
 3266        window: &mut Window,
 3267        cx: &mut Context<Self>,
 3268    ) -> bool {
 3269        let mut did_focus_panel = false;
 3270        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3271            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3272            did_focus_panel
 3273        });
 3274        did_focus_panel
 3275    }
 3276
 3277    pub fn activate_panel_for_proto_id(
 3278        &mut self,
 3279        panel_id: PanelId,
 3280        window: &mut Window,
 3281        cx: &mut Context<Self>,
 3282    ) -> Option<Arc<dyn PanelHandle>> {
 3283        let mut panel = None;
 3284        for dock in self.all_docks() {
 3285            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3286                panel = dock.update(cx, |dock, cx| {
 3287                    dock.activate_panel(panel_index, window, cx);
 3288                    dock.set_open(true, window, cx);
 3289                    dock.active_panel().cloned()
 3290                });
 3291                break;
 3292            }
 3293        }
 3294
 3295        if panel.is_some() {
 3296            cx.notify();
 3297            self.serialize_workspace(window, cx);
 3298        }
 3299
 3300        panel
 3301    }
 3302
 3303    /// Focus or unfocus the given panel type, depending on the given callback.
 3304    fn focus_or_unfocus_panel<T: Panel>(
 3305        &mut self,
 3306        window: &mut Window,
 3307        cx: &mut Context<Self>,
 3308        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3309    ) -> Option<Arc<dyn PanelHandle>> {
 3310        let mut result_panel = None;
 3311        let mut serialize = false;
 3312        for dock in self.all_docks() {
 3313            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3314                let mut focus_center = false;
 3315                let panel = dock.update(cx, |dock, cx| {
 3316                    dock.activate_panel(panel_index, window, cx);
 3317
 3318                    let panel = dock.active_panel().cloned();
 3319                    if let Some(panel) = panel.as_ref() {
 3320                        if should_focus(&**panel, window, cx) {
 3321                            dock.set_open(true, window, cx);
 3322                            panel.panel_focus_handle(cx).focus(window);
 3323                        } else {
 3324                            focus_center = true;
 3325                        }
 3326                    }
 3327                    panel
 3328                });
 3329
 3330                if focus_center {
 3331                    self.active_pane
 3332                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3333                }
 3334
 3335                result_panel = panel;
 3336                serialize = true;
 3337                break;
 3338            }
 3339        }
 3340
 3341        if serialize {
 3342            self.serialize_workspace(window, cx);
 3343        }
 3344
 3345        cx.notify();
 3346        result_panel
 3347    }
 3348
 3349    /// Open the panel of the given type
 3350    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3351        for dock in self.all_docks() {
 3352            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3353                dock.update(cx, |dock, cx| {
 3354                    dock.activate_panel(panel_index, window, cx);
 3355                    dock.set_open(true, window, cx);
 3356                });
 3357            }
 3358        }
 3359    }
 3360
 3361    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3362        for dock in self.all_docks().iter() {
 3363            dock.update(cx, |dock, cx| {
 3364                if dock.panel::<T>().is_some() {
 3365                    dock.set_open(false, window, cx)
 3366                }
 3367            })
 3368        }
 3369    }
 3370
 3371    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3372        self.all_docks()
 3373            .iter()
 3374            .find_map(|dock| dock.read(cx).panel::<T>())
 3375    }
 3376
 3377    fn dismiss_zoomed_items_to_reveal(
 3378        &mut self,
 3379        dock_to_reveal: Option<DockPosition>,
 3380        window: &mut Window,
 3381        cx: &mut Context<Self>,
 3382    ) {
 3383        // If a center pane is zoomed, unzoom it.
 3384        for pane in &self.panes {
 3385            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3386                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3387            }
 3388        }
 3389
 3390        // If another dock is zoomed, hide it.
 3391        let mut focus_center = false;
 3392        for dock in self.all_docks() {
 3393            dock.update(cx, |dock, cx| {
 3394                if Some(dock.position()) != dock_to_reveal
 3395                    && let Some(panel) = dock.active_panel()
 3396                    && panel.is_zoomed(window, cx)
 3397                {
 3398                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3399                    dock.set_open(false, window, cx);
 3400                }
 3401            });
 3402        }
 3403
 3404        if focus_center {
 3405            self.active_pane
 3406                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)))
 3407        }
 3408
 3409        if self.zoomed_position != dock_to_reveal {
 3410            self.zoomed = None;
 3411            self.zoomed_position = None;
 3412            cx.emit(Event::ZoomChanged);
 3413        }
 3414
 3415        cx.notify();
 3416    }
 3417
 3418    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3419        let pane = cx.new(|cx| {
 3420            let mut pane = Pane::new(
 3421                self.weak_handle(),
 3422                self.project.clone(),
 3423                self.pane_history_timestamp.clone(),
 3424                None,
 3425                NewFile.boxed_clone(),
 3426                true,
 3427                window,
 3428                cx,
 3429            );
 3430            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3431            pane
 3432        });
 3433        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3434            .detach();
 3435        self.panes.push(pane.clone());
 3436
 3437        window.focus(&pane.focus_handle(cx));
 3438
 3439        cx.emit(Event::PaneAdded(pane.clone()));
 3440        pane
 3441    }
 3442
 3443    pub fn add_item_to_center(
 3444        &mut self,
 3445        item: Box<dyn ItemHandle>,
 3446        window: &mut Window,
 3447        cx: &mut Context<Self>,
 3448    ) -> bool {
 3449        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3450            if let Some(center_pane) = center_pane.upgrade() {
 3451                center_pane.update(cx, |pane, cx| {
 3452                    pane.add_item(item, true, true, None, window, cx)
 3453                });
 3454                true
 3455            } else {
 3456                false
 3457            }
 3458        } else {
 3459            false
 3460        }
 3461    }
 3462
 3463    pub fn add_item_to_active_pane(
 3464        &mut self,
 3465        item: Box<dyn ItemHandle>,
 3466        destination_index: Option<usize>,
 3467        focus_item: bool,
 3468        window: &mut Window,
 3469        cx: &mut App,
 3470    ) {
 3471        self.add_item(
 3472            self.active_pane.clone(),
 3473            item,
 3474            destination_index,
 3475            false,
 3476            focus_item,
 3477            window,
 3478            cx,
 3479        )
 3480    }
 3481
 3482    pub fn add_item(
 3483        &mut self,
 3484        pane: Entity<Pane>,
 3485        item: Box<dyn ItemHandle>,
 3486        destination_index: Option<usize>,
 3487        activate_pane: bool,
 3488        focus_item: bool,
 3489        window: &mut Window,
 3490        cx: &mut App,
 3491    ) {
 3492        pane.update(cx, |pane, cx| {
 3493            pane.add_item(
 3494                item,
 3495                activate_pane,
 3496                focus_item,
 3497                destination_index,
 3498                window,
 3499                cx,
 3500            )
 3501        });
 3502    }
 3503
 3504    pub fn split_item(
 3505        &mut self,
 3506        split_direction: SplitDirection,
 3507        item: Box<dyn ItemHandle>,
 3508        window: &mut Window,
 3509        cx: &mut Context<Self>,
 3510    ) {
 3511        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3512        self.add_item(new_pane, item, None, true, true, window, cx);
 3513    }
 3514
 3515    pub fn open_abs_path(
 3516        &mut self,
 3517        abs_path: PathBuf,
 3518        options: OpenOptions,
 3519        window: &mut Window,
 3520        cx: &mut Context<Self>,
 3521    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3522        cx.spawn_in(window, async move |workspace, cx| {
 3523            let open_paths_task_result = workspace
 3524                .update_in(cx, |workspace, window, cx| {
 3525                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3526                })
 3527                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3528                .await;
 3529            anyhow::ensure!(
 3530                open_paths_task_result.len() == 1,
 3531                "open abs path {abs_path:?} task returned incorrect number of results"
 3532            );
 3533            match open_paths_task_result
 3534                .into_iter()
 3535                .next()
 3536                .expect("ensured single task result")
 3537            {
 3538                Some(open_result) => {
 3539                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3540                }
 3541                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3542            }
 3543        })
 3544    }
 3545
 3546    pub fn split_abs_path(
 3547        &mut self,
 3548        abs_path: PathBuf,
 3549        visible: bool,
 3550        window: &mut Window,
 3551        cx: &mut Context<Self>,
 3552    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3553        let project_path_task =
 3554            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3555        cx.spawn_in(window, async move |this, cx| {
 3556            let (_, path) = project_path_task.await?;
 3557            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3558                .await
 3559        })
 3560    }
 3561
 3562    pub fn open_path(
 3563        &mut self,
 3564        path: impl Into<ProjectPath>,
 3565        pane: Option<WeakEntity<Pane>>,
 3566        focus_item: bool,
 3567        window: &mut Window,
 3568        cx: &mut App,
 3569    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3570        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3571    }
 3572
 3573    pub fn open_path_preview(
 3574        &mut self,
 3575        path: impl Into<ProjectPath>,
 3576        pane: Option<WeakEntity<Pane>>,
 3577        focus_item: bool,
 3578        allow_preview: bool,
 3579        activate: bool,
 3580        window: &mut Window,
 3581        cx: &mut App,
 3582    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3583        let pane = pane.unwrap_or_else(|| {
 3584            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3585                self.panes
 3586                    .first()
 3587                    .expect("There must be an active pane")
 3588                    .downgrade()
 3589            })
 3590        });
 3591
 3592        let project_path = path.into();
 3593        let task = self.load_path(project_path.clone(), window, cx);
 3594        window.spawn(cx, async move |cx| {
 3595            let (project_entry_id, build_item) = task.await?;
 3596
 3597            pane.update_in(cx, |pane, window, cx| {
 3598                pane.open_item(
 3599                    project_entry_id,
 3600                    project_path,
 3601                    focus_item,
 3602                    allow_preview,
 3603                    activate,
 3604                    None,
 3605                    window,
 3606                    cx,
 3607                    build_item,
 3608                )
 3609            })
 3610        })
 3611    }
 3612
 3613    pub fn split_path(
 3614        &mut self,
 3615        path: impl Into<ProjectPath>,
 3616        window: &mut Window,
 3617        cx: &mut Context<Self>,
 3618    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3619        self.split_path_preview(path, false, None, window, cx)
 3620    }
 3621
 3622    pub fn split_path_preview(
 3623        &mut self,
 3624        path: impl Into<ProjectPath>,
 3625        allow_preview: bool,
 3626        split_direction: Option<SplitDirection>,
 3627        window: &mut Window,
 3628        cx: &mut Context<Self>,
 3629    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3630        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3631            self.panes
 3632                .first()
 3633                .expect("There must be an active pane")
 3634                .downgrade()
 3635        });
 3636
 3637        if let Member::Pane(center_pane) = &self.center.root
 3638            && center_pane.read(cx).items_len() == 0
 3639        {
 3640            return self.open_path(path, Some(pane), true, window, cx);
 3641        }
 3642
 3643        let project_path = path.into();
 3644        let task = self.load_path(project_path.clone(), window, cx);
 3645        cx.spawn_in(window, async move |this, cx| {
 3646            let (project_entry_id, build_item) = task.await?;
 3647            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3648                let pane = pane.upgrade()?;
 3649                let new_pane = this.split_pane(
 3650                    pane,
 3651                    split_direction.unwrap_or(SplitDirection::Right),
 3652                    window,
 3653                    cx,
 3654                );
 3655                new_pane.update(cx, |new_pane, cx| {
 3656                    Some(new_pane.open_item(
 3657                        project_entry_id,
 3658                        project_path,
 3659                        true,
 3660                        allow_preview,
 3661                        true,
 3662                        None,
 3663                        window,
 3664                        cx,
 3665                        build_item,
 3666                    ))
 3667                })
 3668            })
 3669            .map(|option| option.context("pane was dropped"))?
 3670        })
 3671    }
 3672
 3673    fn load_path(
 3674        &mut self,
 3675        path: ProjectPath,
 3676        window: &mut Window,
 3677        cx: &mut App,
 3678    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3679        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3680        registry.open_path(self.project(), &path, window, cx)
 3681    }
 3682
 3683    pub fn find_project_item<T>(
 3684        &self,
 3685        pane: &Entity<Pane>,
 3686        project_item: &Entity<T::Item>,
 3687        cx: &App,
 3688    ) -> Option<Entity<T>>
 3689    where
 3690        T: ProjectItem,
 3691    {
 3692        use project::ProjectItem as _;
 3693        let project_item = project_item.read(cx);
 3694        let entry_id = project_item.entry_id(cx);
 3695        let project_path = project_item.project_path(cx);
 3696
 3697        let mut item = None;
 3698        if let Some(entry_id) = entry_id {
 3699            item = pane.read(cx).item_for_entry(entry_id, cx);
 3700        }
 3701        if item.is_none()
 3702            && let Some(project_path) = project_path
 3703        {
 3704            item = pane.read(cx).item_for_path(project_path, cx);
 3705        }
 3706
 3707        item.and_then(|item| item.downcast::<T>())
 3708    }
 3709
 3710    pub fn is_project_item_open<T>(
 3711        &self,
 3712        pane: &Entity<Pane>,
 3713        project_item: &Entity<T::Item>,
 3714        cx: &App,
 3715    ) -> bool
 3716    where
 3717        T: ProjectItem,
 3718    {
 3719        self.find_project_item::<T>(pane, project_item, cx)
 3720            .is_some()
 3721    }
 3722
 3723    pub fn open_project_item<T>(
 3724        &mut self,
 3725        pane: Entity<Pane>,
 3726        project_item: Entity<T::Item>,
 3727        activate_pane: bool,
 3728        focus_item: bool,
 3729        keep_old_preview: bool,
 3730        allow_new_preview: bool,
 3731        window: &mut Window,
 3732        cx: &mut Context<Self>,
 3733    ) -> Entity<T>
 3734    where
 3735        T: ProjectItem,
 3736    {
 3737        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3738
 3739        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3740            if !keep_old_preview
 3741                && let Some(old_id) = old_item_id
 3742                && old_id != item.item_id()
 3743            {
 3744                // switching to a different item, so unpreview old active item
 3745                pane.update(cx, |pane, _| {
 3746                    pane.unpreview_item_if_preview(old_id);
 3747                });
 3748            }
 3749
 3750            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3751            if !allow_new_preview {
 3752                pane.update(cx, |pane, _| {
 3753                    pane.unpreview_item_if_preview(item.item_id());
 3754                });
 3755            }
 3756            return item;
 3757        }
 3758
 3759        let item = pane.update(cx, |pane, cx| {
 3760            cx.new(|cx| {
 3761                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3762            })
 3763        });
 3764        let mut destination_index = None;
 3765        pane.update(cx, |pane, cx| {
 3766            if !keep_old_preview && let Some(old_id) = old_item_id {
 3767                pane.unpreview_item_if_preview(old_id);
 3768            }
 3769            if allow_new_preview {
 3770                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3771            }
 3772        });
 3773
 3774        self.add_item(
 3775            pane,
 3776            Box::new(item.clone()),
 3777            destination_index,
 3778            activate_pane,
 3779            focus_item,
 3780            window,
 3781            cx,
 3782        );
 3783        item
 3784    }
 3785
 3786    pub fn open_shared_screen(
 3787        &mut self,
 3788        peer_id: PeerId,
 3789        window: &mut Window,
 3790        cx: &mut Context<Self>,
 3791    ) {
 3792        if let Some(shared_screen) =
 3793            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3794        {
 3795            self.active_pane.update(cx, |pane, cx| {
 3796                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3797            });
 3798        }
 3799    }
 3800
 3801    pub fn activate_item(
 3802        &mut self,
 3803        item: &dyn ItemHandle,
 3804        activate_pane: bool,
 3805        focus_item: bool,
 3806        window: &mut Window,
 3807        cx: &mut App,
 3808    ) -> bool {
 3809        let result = self.panes.iter().find_map(|pane| {
 3810            pane.read(cx)
 3811                .index_for_item(item)
 3812                .map(|ix| (pane.clone(), ix))
 3813        });
 3814        if let Some((pane, ix)) = result {
 3815            pane.update(cx, |pane, cx| {
 3816                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3817            });
 3818            true
 3819        } else {
 3820            false
 3821        }
 3822    }
 3823
 3824    fn activate_pane_at_index(
 3825        &mut self,
 3826        action: &ActivatePane,
 3827        window: &mut Window,
 3828        cx: &mut Context<Self>,
 3829    ) {
 3830        let panes = self.center.panes();
 3831        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3832            window.focus(&pane.focus_handle(cx));
 3833        } else {
 3834            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3835                .detach();
 3836        }
 3837    }
 3838
 3839    fn move_item_to_pane_at_index(
 3840        &mut self,
 3841        action: &MoveItemToPane,
 3842        window: &mut Window,
 3843        cx: &mut Context<Self>,
 3844    ) {
 3845        let panes = self.center.panes();
 3846        let destination = match panes.get(action.destination) {
 3847            Some(&destination) => destination.clone(),
 3848            None => {
 3849                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3850                    return;
 3851                }
 3852                let direction = SplitDirection::Right;
 3853                let split_off_pane = self
 3854                    .find_pane_in_direction(direction, cx)
 3855                    .unwrap_or_else(|| self.active_pane.clone());
 3856                let new_pane = self.add_pane(window, cx);
 3857                if self
 3858                    .center
 3859                    .split(&split_off_pane, &new_pane, direction, cx)
 3860                    .log_err()
 3861                    .is_none()
 3862                {
 3863                    return;
 3864                };
 3865                new_pane
 3866            }
 3867        };
 3868
 3869        if action.clone {
 3870            if self
 3871                .active_pane
 3872                .read(cx)
 3873                .active_item()
 3874                .is_some_and(|item| item.can_split(cx))
 3875            {
 3876                clone_active_item(
 3877                    self.database_id(),
 3878                    &self.active_pane,
 3879                    &destination,
 3880                    action.focus,
 3881                    window,
 3882                    cx,
 3883                );
 3884                return;
 3885            }
 3886        }
 3887        move_active_item(
 3888            &self.active_pane,
 3889            &destination,
 3890            action.focus,
 3891            true,
 3892            window,
 3893            cx,
 3894        )
 3895    }
 3896
 3897    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3898        let panes = self.center.panes();
 3899        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3900            let next_ix = (ix + 1) % panes.len();
 3901            let next_pane = panes[next_ix].clone();
 3902            window.focus(&next_pane.focus_handle(cx));
 3903        }
 3904    }
 3905
 3906    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3907        let panes = self.center.panes();
 3908        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3909            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3910            let prev_pane = panes[prev_ix].clone();
 3911            window.focus(&prev_pane.focus_handle(cx));
 3912        }
 3913    }
 3914
 3915    pub fn activate_pane_in_direction(
 3916        &mut self,
 3917        direction: SplitDirection,
 3918        window: &mut Window,
 3919        cx: &mut App,
 3920    ) {
 3921        use ActivateInDirectionTarget as Target;
 3922        enum Origin {
 3923            LeftDock,
 3924            RightDock,
 3925            BottomDock,
 3926            Center,
 3927        }
 3928
 3929        let origin: Origin = [
 3930            (&self.left_dock, Origin::LeftDock),
 3931            (&self.right_dock, Origin::RightDock),
 3932            (&self.bottom_dock, Origin::BottomDock),
 3933        ]
 3934        .into_iter()
 3935        .find_map(|(dock, origin)| {
 3936            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3937                Some(origin)
 3938            } else {
 3939                None
 3940            }
 3941        })
 3942        .unwrap_or(Origin::Center);
 3943
 3944        let get_last_active_pane = || {
 3945            let pane = self
 3946                .last_active_center_pane
 3947                .clone()
 3948                .unwrap_or_else(|| {
 3949                    self.panes
 3950                        .first()
 3951                        .expect("There must be an active pane")
 3952                        .downgrade()
 3953                })
 3954                .upgrade()?;
 3955            (pane.read(cx).items_len() != 0).then_some(pane)
 3956        };
 3957
 3958        let try_dock =
 3959            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 3960
 3961        let target = match (origin, direction) {
 3962            // We're in the center, so we first try to go to a different pane,
 3963            // otherwise try to go to a dock.
 3964            (Origin::Center, direction) => {
 3965                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 3966                    Some(Target::Pane(pane))
 3967                } else {
 3968                    match direction {
 3969                        SplitDirection::Up => None,
 3970                        SplitDirection::Down => try_dock(&self.bottom_dock),
 3971                        SplitDirection::Left => try_dock(&self.left_dock),
 3972                        SplitDirection::Right => try_dock(&self.right_dock),
 3973                    }
 3974                }
 3975            }
 3976
 3977            (Origin::LeftDock, SplitDirection::Right) => {
 3978                if let Some(last_active_pane) = get_last_active_pane() {
 3979                    Some(Target::Pane(last_active_pane))
 3980                } else {
 3981                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 3982                }
 3983            }
 3984
 3985            (Origin::LeftDock, SplitDirection::Down)
 3986            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 3987
 3988            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 3989            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 3990            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 3991
 3992            (Origin::RightDock, SplitDirection::Left) => {
 3993                if let Some(last_active_pane) = get_last_active_pane() {
 3994                    Some(Target::Pane(last_active_pane))
 3995                } else {
 3996                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 3997                }
 3998            }
 3999
 4000            _ => None,
 4001        };
 4002
 4003        match target {
 4004            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4005                let pane = pane.read(cx);
 4006                if let Some(item) = pane.active_item() {
 4007                    item.item_focus_handle(cx).focus(window);
 4008                } else {
 4009                    log::error!(
 4010                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4011                    );
 4012                }
 4013            }
 4014            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4015                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4016                window.defer(cx, move |window, cx| {
 4017                    let dock = dock.read(cx);
 4018                    if let Some(panel) = dock.active_panel() {
 4019                        panel.panel_focus_handle(cx).focus(window);
 4020                    } else {
 4021                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4022                    }
 4023                })
 4024            }
 4025            None => {}
 4026        }
 4027    }
 4028
 4029    pub fn move_item_to_pane_in_direction(
 4030        &mut self,
 4031        action: &MoveItemToPaneInDirection,
 4032        window: &mut Window,
 4033        cx: &mut Context<Self>,
 4034    ) {
 4035        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4036            Some(destination) => destination,
 4037            None => {
 4038                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4039                    return;
 4040                }
 4041                let new_pane = self.add_pane(window, cx);
 4042                if self
 4043                    .center
 4044                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4045                    .log_err()
 4046                    .is_none()
 4047                {
 4048                    return;
 4049                };
 4050                new_pane
 4051            }
 4052        };
 4053
 4054        if action.clone {
 4055            if self
 4056                .active_pane
 4057                .read(cx)
 4058                .active_item()
 4059                .is_some_and(|item| item.can_split(cx))
 4060            {
 4061                clone_active_item(
 4062                    self.database_id(),
 4063                    &self.active_pane,
 4064                    &destination,
 4065                    action.focus,
 4066                    window,
 4067                    cx,
 4068                );
 4069                return;
 4070            }
 4071        }
 4072        move_active_item(
 4073            &self.active_pane,
 4074            &destination,
 4075            action.focus,
 4076            true,
 4077            window,
 4078            cx,
 4079        );
 4080    }
 4081
 4082    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4083        self.center.bounding_box_for_pane(pane)
 4084    }
 4085
 4086    pub fn find_pane_in_direction(
 4087        &mut self,
 4088        direction: SplitDirection,
 4089        cx: &App,
 4090    ) -> Option<Entity<Pane>> {
 4091        self.center
 4092            .find_pane_in_direction(&self.active_pane, direction, cx)
 4093            .cloned()
 4094    }
 4095
 4096    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4097        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4098            self.center.swap(&self.active_pane, &to, cx);
 4099            cx.notify();
 4100        }
 4101    }
 4102
 4103    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4104        if self
 4105            .center
 4106            .move_to_border(&self.active_pane, direction, cx)
 4107            .unwrap()
 4108        {
 4109            cx.notify();
 4110        }
 4111    }
 4112
 4113    pub fn resize_pane(
 4114        &mut self,
 4115        axis: gpui::Axis,
 4116        amount: Pixels,
 4117        window: &mut Window,
 4118        cx: &mut Context<Self>,
 4119    ) {
 4120        let docks = self.all_docks();
 4121        let active_dock = docks
 4122            .into_iter()
 4123            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4124
 4125        if let Some(dock) = active_dock {
 4126            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4127                return;
 4128            };
 4129            match dock.read(cx).position() {
 4130                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4131                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4132                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4133            }
 4134        } else {
 4135            self.center
 4136                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4137        }
 4138        cx.notify();
 4139    }
 4140
 4141    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4142        self.center.reset_pane_sizes(cx);
 4143        cx.notify();
 4144    }
 4145
 4146    fn handle_pane_focused(
 4147        &mut self,
 4148        pane: Entity<Pane>,
 4149        window: &mut Window,
 4150        cx: &mut Context<Self>,
 4151    ) {
 4152        // This is explicitly hoisted out of the following check for pane identity as
 4153        // terminal panel panes are not registered as a center panes.
 4154        self.status_bar.update(cx, |status_bar, cx| {
 4155            status_bar.set_active_pane(&pane, window, cx);
 4156        });
 4157        if self.active_pane != pane {
 4158            self.set_active_pane(&pane, window, cx);
 4159        }
 4160
 4161        if self.last_active_center_pane.is_none() {
 4162            self.last_active_center_pane = Some(pane.downgrade());
 4163        }
 4164
 4165        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4166        if pane.read(cx).is_zoomed() {
 4167            self.zoomed = Some(pane.downgrade().into());
 4168        } else {
 4169            self.zoomed = None;
 4170        }
 4171        self.zoomed_position = None;
 4172        cx.emit(Event::ZoomChanged);
 4173        self.update_active_view_for_followers(window, cx);
 4174        pane.update(cx, |pane, _| {
 4175            pane.track_alternate_file_items();
 4176        });
 4177
 4178        cx.notify();
 4179    }
 4180
 4181    fn set_active_pane(
 4182        &mut self,
 4183        pane: &Entity<Pane>,
 4184        window: &mut Window,
 4185        cx: &mut Context<Self>,
 4186    ) {
 4187        self.active_pane = pane.clone();
 4188        self.active_item_path_changed(window, cx);
 4189        self.last_active_center_pane = Some(pane.downgrade());
 4190    }
 4191
 4192    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4193        self.update_active_view_for_followers(window, cx);
 4194    }
 4195
 4196    fn handle_pane_event(
 4197        &mut self,
 4198        pane: &Entity<Pane>,
 4199        event: &pane::Event,
 4200        window: &mut Window,
 4201        cx: &mut Context<Self>,
 4202    ) {
 4203        let mut serialize_workspace = true;
 4204        match event {
 4205            pane::Event::AddItem { item } => {
 4206                item.added_to_pane(self, pane.clone(), window, cx);
 4207                cx.emit(Event::ItemAdded {
 4208                    item: item.boxed_clone(),
 4209                });
 4210            }
 4211            pane::Event::Split {
 4212                direction,
 4213                clone_active_item,
 4214            } => {
 4215                if *clone_active_item {
 4216                    self.split_and_clone(pane.clone(), *direction, window, cx)
 4217                        .detach();
 4218                } else {
 4219                    self.split_and_move(pane.clone(), *direction, window, cx);
 4220                }
 4221            }
 4222            pane::Event::JoinIntoNext => {
 4223                self.join_pane_into_next(pane.clone(), window, cx);
 4224            }
 4225            pane::Event::JoinAll => {
 4226                self.join_all_panes(window, cx);
 4227            }
 4228            pane::Event::Remove { focus_on_pane } => {
 4229                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4230            }
 4231            pane::Event::ActivateItem {
 4232                local,
 4233                focus_changed,
 4234            } => {
 4235                window.invalidate_character_coordinates();
 4236
 4237                pane.update(cx, |pane, _| {
 4238                    pane.track_alternate_file_items();
 4239                });
 4240                if *local {
 4241                    self.unfollow_in_pane(pane, window, cx);
 4242                }
 4243                serialize_workspace = *focus_changed || pane != self.active_pane();
 4244                if pane == self.active_pane() {
 4245                    self.active_item_path_changed(window, cx);
 4246                    self.update_active_view_for_followers(window, cx);
 4247                } else if *local {
 4248                    self.set_active_pane(pane, window, cx);
 4249                }
 4250            }
 4251            pane::Event::UserSavedItem { item, save_intent } => {
 4252                cx.emit(Event::UserSavedItem {
 4253                    pane: pane.downgrade(),
 4254                    item: item.boxed_clone(),
 4255                    save_intent: *save_intent,
 4256                });
 4257                serialize_workspace = false;
 4258            }
 4259            pane::Event::ChangeItemTitle => {
 4260                if *pane == self.active_pane {
 4261                    self.active_item_path_changed(window, cx);
 4262                }
 4263                serialize_workspace = false;
 4264            }
 4265            pane::Event::RemovedItem { item } => {
 4266                cx.emit(Event::ActiveItemChanged);
 4267                self.update_window_edited(window, cx);
 4268                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4269                    && entry.get().entity_id() == pane.entity_id()
 4270                {
 4271                    entry.remove();
 4272                }
 4273                cx.emit(Event::ItemRemoved {
 4274                    item_id: item.item_id(),
 4275                });
 4276            }
 4277            pane::Event::Focus => {
 4278                window.invalidate_character_coordinates();
 4279                self.handle_pane_focused(pane.clone(), window, cx);
 4280            }
 4281            pane::Event::ZoomIn => {
 4282                if *pane == self.active_pane {
 4283                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4284                    if pane.read(cx).has_focus(window, cx) {
 4285                        self.zoomed = Some(pane.downgrade().into());
 4286                        self.zoomed_position = None;
 4287                        cx.emit(Event::ZoomChanged);
 4288                    }
 4289                    cx.notify();
 4290                }
 4291            }
 4292            pane::Event::ZoomOut => {
 4293                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4294                if self.zoomed_position.is_none() {
 4295                    self.zoomed = None;
 4296                    cx.emit(Event::ZoomChanged);
 4297                }
 4298                cx.notify();
 4299            }
 4300            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4301        }
 4302
 4303        if serialize_workspace {
 4304            self.serialize_workspace(window, cx);
 4305        }
 4306    }
 4307
 4308    pub fn unfollow_in_pane(
 4309        &mut self,
 4310        pane: &Entity<Pane>,
 4311        window: &mut Window,
 4312        cx: &mut Context<Workspace>,
 4313    ) -> Option<CollaboratorId> {
 4314        let leader_id = self.leader_for_pane(pane)?;
 4315        self.unfollow(leader_id, window, cx);
 4316        Some(leader_id)
 4317    }
 4318
 4319    pub fn split_pane(
 4320        &mut self,
 4321        pane_to_split: Entity<Pane>,
 4322        split_direction: SplitDirection,
 4323        window: &mut Window,
 4324        cx: &mut Context<Self>,
 4325    ) -> Entity<Pane> {
 4326        let new_pane = self.add_pane(window, cx);
 4327        self.center
 4328            .split(&pane_to_split, &new_pane, split_direction, cx)
 4329            .unwrap();
 4330        cx.notify();
 4331        new_pane
 4332    }
 4333
 4334    pub fn split_and_move(
 4335        &mut self,
 4336        pane: Entity<Pane>,
 4337        direction: SplitDirection,
 4338        window: &mut Window,
 4339        cx: &mut Context<Self>,
 4340    ) {
 4341        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4342            return;
 4343        };
 4344        let new_pane = self.add_pane(window, cx);
 4345        new_pane.update(cx, |pane, cx| {
 4346            pane.add_item(item, true, true, None, window, cx)
 4347        });
 4348        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4349        cx.notify();
 4350    }
 4351
 4352    pub fn split_and_clone(
 4353        &mut self,
 4354        pane: Entity<Pane>,
 4355        direction: SplitDirection,
 4356        window: &mut Window,
 4357        cx: &mut Context<Self>,
 4358    ) -> Task<Option<Entity<Pane>>> {
 4359        let Some(item) = pane.read(cx).active_item() else {
 4360            return Task::ready(None);
 4361        };
 4362        if !item.can_split(cx) {
 4363            return Task::ready(None);
 4364        }
 4365        let task = item.clone_on_split(self.database_id(), window, cx);
 4366        cx.spawn_in(window, async move |this, cx| {
 4367            if let Some(clone) = task.await {
 4368                this.update_in(cx, |this, window, cx| {
 4369                    let new_pane = this.add_pane(window, cx);
 4370                    new_pane.update(cx, |pane, cx| {
 4371                        pane.add_item(clone, true, true, None, window, cx)
 4372                    });
 4373                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4374                    cx.notify();
 4375                    new_pane
 4376                })
 4377                .ok()
 4378            } else {
 4379                None
 4380            }
 4381        })
 4382    }
 4383
 4384    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4385        let active_item = self.active_pane.read(cx).active_item();
 4386        for pane in &self.panes {
 4387            join_pane_into_active(&self.active_pane, pane, window, cx);
 4388        }
 4389        if let Some(active_item) = active_item {
 4390            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4391        }
 4392        cx.notify();
 4393    }
 4394
 4395    pub fn join_pane_into_next(
 4396        &mut self,
 4397        pane: Entity<Pane>,
 4398        window: &mut Window,
 4399        cx: &mut Context<Self>,
 4400    ) {
 4401        let next_pane = self
 4402            .find_pane_in_direction(SplitDirection::Right, cx)
 4403            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4404            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4405            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4406        let Some(next_pane) = next_pane else {
 4407            return;
 4408        };
 4409        move_all_items(&pane, &next_pane, window, cx);
 4410        cx.notify();
 4411    }
 4412
 4413    fn remove_pane(
 4414        &mut self,
 4415        pane: Entity<Pane>,
 4416        focus_on: Option<Entity<Pane>>,
 4417        window: &mut Window,
 4418        cx: &mut Context<Self>,
 4419    ) {
 4420        if self.center.remove(&pane, cx).unwrap() {
 4421            self.force_remove_pane(&pane, &focus_on, window, cx);
 4422            self.unfollow_in_pane(&pane, window, cx);
 4423            self.last_leaders_by_pane.remove(&pane.downgrade());
 4424            for removed_item in pane.read(cx).items() {
 4425                self.panes_by_item.remove(&removed_item.item_id());
 4426            }
 4427
 4428            cx.notify();
 4429        } else {
 4430            self.active_item_path_changed(window, cx);
 4431        }
 4432        cx.emit(Event::PaneRemoved);
 4433    }
 4434
 4435    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4436        &mut self.panes
 4437    }
 4438
 4439    pub fn panes(&self) -> &[Entity<Pane>] {
 4440        &self.panes
 4441    }
 4442
 4443    pub fn active_pane(&self) -> &Entity<Pane> {
 4444        &self.active_pane
 4445    }
 4446
 4447    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4448        for dock in self.all_docks() {
 4449            if dock.focus_handle(cx).contains_focused(window, cx)
 4450                && let Some(pane) = dock
 4451                    .read(cx)
 4452                    .active_panel()
 4453                    .and_then(|panel| panel.pane(cx))
 4454            {
 4455                return pane;
 4456            }
 4457        }
 4458        self.active_pane().clone()
 4459    }
 4460
 4461    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4462        self.find_pane_in_direction(SplitDirection::Right, cx)
 4463            .unwrap_or_else(|| {
 4464                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4465            })
 4466    }
 4467
 4468    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4469        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4470        weak_pane.upgrade()
 4471    }
 4472
 4473    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4474        self.follower_states.retain(|leader_id, state| {
 4475            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4476                for item in state.items_by_leader_view_id.values() {
 4477                    item.view.set_leader_id(None, window, cx);
 4478                }
 4479                false
 4480            } else {
 4481                true
 4482            }
 4483        });
 4484        cx.notify();
 4485    }
 4486
 4487    pub fn start_following(
 4488        &mut self,
 4489        leader_id: impl Into<CollaboratorId>,
 4490        window: &mut Window,
 4491        cx: &mut Context<Self>,
 4492    ) -> Option<Task<Result<()>>> {
 4493        let leader_id = leader_id.into();
 4494        let pane = self.active_pane().clone();
 4495
 4496        self.last_leaders_by_pane
 4497            .insert(pane.downgrade(), leader_id);
 4498        self.unfollow(leader_id, window, cx);
 4499        self.unfollow_in_pane(&pane, window, cx);
 4500        self.follower_states.insert(
 4501            leader_id,
 4502            FollowerState {
 4503                center_pane: pane.clone(),
 4504                dock_pane: None,
 4505                active_view_id: None,
 4506                items_by_leader_view_id: Default::default(),
 4507            },
 4508        );
 4509        cx.notify();
 4510
 4511        match leader_id {
 4512            CollaboratorId::PeerId(leader_peer_id) => {
 4513                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4514                let project_id = self.project.read(cx).remote_id();
 4515                let request = self.app_state.client.request(proto::Follow {
 4516                    room_id,
 4517                    project_id,
 4518                    leader_id: Some(leader_peer_id),
 4519                });
 4520
 4521                Some(cx.spawn_in(window, async move |this, cx| {
 4522                    let response = request.await?;
 4523                    this.update(cx, |this, _| {
 4524                        let state = this
 4525                            .follower_states
 4526                            .get_mut(&leader_id)
 4527                            .context("following interrupted")?;
 4528                        state.active_view_id = response
 4529                            .active_view
 4530                            .as_ref()
 4531                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4532                        anyhow::Ok(())
 4533                    })??;
 4534                    if let Some(view) = response.active_view {
 4535                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4536                    }
 4537                    this.update_in(cx, |this, window, cx| {
 4538                        this.leader_updated(leader_id, window, cx)
 4539                    })?;
 4540                    Ok(())
 4541                }))
 4542            }
 4543            CollaboratorId::Agent => {
 4544                self.leader_updated(leader_id, window, cx)?;
 4545                Some(Task::ready(Ok(())))
 4546            }
 4547        }
 4548    }
 4549
 4550    pub fn follow_next_collaborator(
 4551        &mut self,
 4552        _: &FollowNextCollaborator,
 4553        window: &mut Window,
 4554        cx: &mut Context<Self>,
 4555    ) {
 4556        let collaborators = self.project.read(cx).collaborators();
 4557        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4558            let mut collaborators = collaborators.keys().copied();
 4559            for peer_id in collaborators.by_ref() {
 4560                if CollaboratorId::PeerId(peer_id) == leader_id {
 4561                    break;
 4562                }
 4563            }
 4564            collaborators.next().map(CollaboratorId::PeerId)
 4565        } else if let Some(last_leader_id) =
 4566            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4567        {
 4568            match last_leader_id {
 4569                CollaboratorId::PeerId(peer_id) => {
 4570                    if collaborators.contains_key(peer_id) {
 4571                        Some(*last_leader_id)
 4572                    } else {
 4573                        None
 4574                    }
 4575                }
 4576                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4577            }
 4578        } else {
 4579            None
 4580        };
 4581
 4582        let pane = self.active_pane.clone();
 4583        let Some(leader_id) = next_leader_id.or_else(|| {
 4584            Some(CollaboratorId::PeerId(
 4585                collaborators.keys().copied().next()?,
 4586            ))
 4587        }) else {
 4588            return;
 4589        };
 4590        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4591            return;
 4592        }
 4593        if let Some(task) = self.start_following(leader_id, window, cx) {
 4594            task.detach_and_log_err(cx)
 4595        }
 4596    }
 4597
 4598    pub fn follow(
 4599        &mut self,
 4600        leader_id: impl Into<CollaboratorId>,
 4601        window: &mut Window,
 4602        cx: &mut Context<Self>,
 4603    ) {
 4604        let leader_id = leader_id.into();
 4605
 4606        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4607            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4608                return;
 4609            };
 4610            let room = room.read(cx);
 4611            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4612                return;
 4613            };
 4614
 4615            let project = self.project.read(cx);
 4616
 4617            let other_project_id = match remote_participant.location {
 4618                call::ParticipantLocation::External => None,
 4619                call::ParticipantLocation::UnsharedProject => None,
 4620                call::ParticipantLocation::SharedProject { project_id } => {
 4621                    if Some(project_id) == project.remote_id() {
 4622                        None
 4623                    } else {
 4624                        Some(project_id)
 4625                    }
 4626                }
 4627            };
 4628
 4629            // if they are active in another project, follow there.
 4630            if let Some(project_id) = other_project_id {
 4631                let app_state = self.app_state.clone();
 4632                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4633                    .detach_and_log_err(cx);
 4634            }
 4635        }
 4636
 4637        // if you're already following, find the right pane and focus it.
 4638        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4639            window.focus(&follower_state.pane().focus_handle(cx));
 4640
 4641            return;
 4642        }
 4643
 4644        // Otherwise, follow.
 4645        if let Some(task) = self.start_following(leader_id, window, cx) {
 4646            task.detach_and_log_err(cx)
 4647        }
 4648    }
 4649
 4650    pub fn unfollow(
 4651        &mut self,
 4652        leader_id: impl Into<CollaboratorId>,
 4653        window: &mut Window,
 4654        cx: &mut Context<Self>,
 4655    ) -> Option<()> {
 4656        cx.notify();
 4657
 4658        let leader_id = leader_id.into();
 4659        let state = self.follower_states.remove(&leader_id)?;
 4660        for (_, item) in state.items_by_leader_view_id {
 4661            item.view.set_leader_id(None, window, cx);
 4662        }
 4663
 4664        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4665            let project_id = self.project.read(cx).remote_id();
 4666            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4667            self.app_state
 4668                .client
 4669                .send(proto::Unfollow {
 4670                    room_id,
 4671                    project_id,
 4672                    leader_id: Some(leader_peer_id),
 4673                })
 4674                .log_err();
 4675        }
 4676
 4677        Some(())
 4678    }
 4679
 4680    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4681        self.follower_states.contains_key(&id.into())
 4682    }
 4683
 4684    fn active_item_path_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4685        cx.emit(Event::ActiveItemChanged);
 4686        let active_entry = self.active_project_path(cx);
 4687        self.project.update(cx, |project, cx| {
 4688            project.set_active_path(active_entry.clone(), cx)
 4689        });
 4690
 4691        if let Some(project_path) = &active_entry {
 4692            let git_store_entity = self.project.read(cx).git_store().clone();
 4693            git_store_entity.update(cx, |git_store, cx| {
 4694                git_store.set_active_repo_for_path(project_path, cx);
 4695            });
 4696        }
 4697
 4698        self.update_window_title(window, cx);
 4699    }
 4700
 4701    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4702        let project = self.project().read(cx);
 4703        let mut title = String::new();
 4704
 4705        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4706            let name = {
 4707                let settings_location = SettingsLocation {
 4708                    worktree_id: worktree.read(cx).id(),
 4709                    path: RelPath::empty(),
 4710                };
 4711
 4712                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4713                match &settings.project_name {
 4714                    Some(name) => name.as_str(),
 4715                    None => worktree.read(cx).root_name_str(),
 4716                }
 4717            };
 4718            if i > 0 {
 4719                title.push_str(", ");
 4720            }
 4721            title.push_str(name);
 4722        }
 4723
 4724        if title.is_empty() {
 4725            title = "empty project".to_string();
 4726        }
 4727
 4728        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4729            let filename = path.path.file_name().or_else(|| {
 4730                Some(
 4731                    project
 4732                        .worktree_for_id(path.worktree_id, cx)?
 4733                        .read(cx)
 4734                        .root_name_str(),
 4735                )
 4736            });
 4737
 4738            if let Some(filename) = filename {
 4739                title.push_str("");
 4740                title.push_str(filename.as_ref());
 4741            }
 4742        }
 4743
 4744        if project.is_via_collab() {
 4745            title.push_str("");
 4746        } else if project.is_shared() {
 4747            title.push_str("");
 4748        }
 4749
 4750        if let Some(last_title) = self.last_window_title.as_ref()
 4751            && &title == last_title
 4752        {
 4753            return;
 4754        }
 4755        window.set_window_title(&title);
 4756        SystemWindowTabController::update_tab_title(
 4757            cx,
 4758            window.window_handle().window_id(),
 4759            SharedString::from(&title),
 4760        );
 4761        self.last_window_title = Some(title);
 4762    }
 4763
 4764    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4765        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4766        if is_edited != self.window_edited {
 4767            self.window_edited = is_edited;
 4768            window.set_window_edited(self.window_edited)
 4769        }
 4770    }
 4771
 4772    fn update_item_dirty_state(
 4773        &mut self,
 4774        item: &dyn ItemHandle,
 4775        window: &mut Window,
 4776        cx: &mut App,
 4777    ) {
 4778        let is_dirty = item.is_dirty(cx);
 4779        let item_id = item.item_id();
 4780        let was_dirty = self.dirty_items.contains_key(&item_id);
 4781        if is_dirty == was_dirty {
 4782            return;
 4783        }
 4784        if was_dirty {
 4785            self.dirty_items.remove(&item_id);
 4786            self.update_window_edited(window, cx);
 4787            return;
 4788        }
 4789        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4790            let s = item.on_release(
 4791                cx,
 4792                Box::new(move |cx| {
 4793                    window_handle
 4794                        .update(cx, |this, window, cx| {
 4795                            this.dirty_items.remove(&item_id);
 4796                            this.update_window_edited(window, cx)
 4797                        })
 4798                        .ok();
 4799                }),
 4800            );
 4801            self.dirty_items.insert(item_id, s);
 4802            self.update_window_edited(window, cx);
 4803        }
 4804    }
 4805
 4806    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4807        if self.notifications.is_empty() {
 4808            None
 4809        } else {
 4810            Some(
 4811                div()
 4812                    .absolute()
 4813                    .right_3()
 4814                    .bottom_3()
 4815                    .w_112()
 4816                    .h_full()
 4817                    .flex()
 4818                    .flex_col()
 4819                    .justify_end()
 4820                    .gap_2()
 4821                    .children(
 4822                        self.notifications
 4823                            .iter()
 4824                            .map(|(_, notification)| notification.clone().into_any()),
 4825                    ),
 4826            )
 4827        }
 4828    }
 4829
 4830    // RPC handlers
 4831
 4832    fn active_view_for_follower(
 4833        &self,
 4834        follower_project_id: Option<u64>,
 4835        window: &mut Window,
 4836        cx: &mut Context<Self>,
 4837    ) -> Option<proto::View> {
 4838        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4839        let item = item?;
 4840        let leader_id = self
 4841            .pane_for(&*item)
 4842            .and_then(|pane| self.leader_for_pane(&pane));
 4843        let leader_peer_id = match leader_id {
 4844            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4845            Some(CollaboratorId::Agent) | None => None,
 4846        };
 4847
 4848        let item_handle = item.to_followable_item_handle(cx)?;
 4849        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4850        let variant = item_handle.to_state_proto(window, cx)?;
 4851
 4852        if item_handle.is_project_item(window, cx)
 4853            && (follower_project_id.is_none()
 4854                || follower_project_id != self.project.read(cx).remote_id())
 4855        {
 4856            return None;
 4857        }
 4858
 4859        Some(proto::View {
 4860            id: id.to_proto(),
 4861            leader_id: leader_peer_id,
 4862            variant: Some(variant),
 4863            panel_id: panel_id.map(|id| id as i32),
 4864        })
 4865    }
 4866
 4867    fn handle_follow(
 4868        &mut self,
 4869        follower_project_id: Option<u64>,
 4870        window: &mut Window,
 4871        cx: &mut Context<Self>,
 4872    ) -> proto::FollowResponse {
 4873        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4874
 4875        cx.notify();
 4876        proto::FollowResponse {
 4877            // TODO: Remove after version 0.145.x stabilizes.
 4878            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4879            views: active_view.iter().cloned().collect(),
 4880            active_view,
 4881        }
 4882    }
 4883
 4884    fn handle_update_followers(
 4885        &mut self,
 4886        leader_id: PeerId,
 4887        message: proto::UpdateFollowers,
 4888        _window: &mut Window,
 4889        _cx: &mut Context<Self>,
 4890    ) {
 4891        self.leader_updates_tx
 4892            .unbounded_send((leader_id, message))
 4893            .ok();
 4894    }
 4895
 4896    async fn process_leader_update(
 4897        this: &WeakEntity<Self>,
 4898        leader_id: PeerId,
 4899        update: proto::UpdateFollowers,
 4900        cx: &mut AsyncWindowContext,
 4901    ) -> Result<()> {
 4902        match update.variant.context("invalid update")? {
 4903            proto::update_followers::Variant::CreateView(view) => {
 4904                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4905                let should_add_view = this.update(cx, |this, _| {
 4906                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4907                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4908                    } else {
 4909                        anyhow::Ok(false)
 4910                    }
 4911                })??;
 4912
 4913                if should_add_view {
 4914                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4915                }
 4916            }
 4917            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4918                let should_add_view = this.update(cx, |this, _| {
 4919                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4920                        state.active_view_id = update_active_view
 4921                            .view
 4922                            .as_ref()
 4923                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4924
 4925                        if state.active_view_id.is_some_and(|view_id| {
 4926                            !state.items_by_leader_view_id.contains_key(&view_id)
 4927                        }) {
 4928                            anyhow::Ok(true)
 4929                        } else {
 4930                            anyhow::Ok(false)
 4931                        }
 4932                    } else {
 4933                        anyhow::Ok(false)
 4934                    }
 4935                })??;
 4936
 4937                if should_add_view && let Some(view) = update_active_view.view {
 4938                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4939                }
 4940            }
 4941            proto::update_followers::Variant::UpdateView(update_view) => {
 4942                let variant = update_view.variant.context("missing update view variant")?;
 4943                let id = update_view.id.context("missing update view id")?;
 4944                let mut tasks = Vec::new();
 4945                this.update_in(cx, |this, window, cx| {
 4946                    let project = this.project.clone();
 4947                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 4948                        let view_id = ViewId::from_proto(id.clone())?;
 4949                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 4950                            tasks.push(item.view.apply_update_proto(
 4951                                &project,
 4952                                variant.clone(),
 4953                                window,
 4954                                cx,
 4955                            ));
 4956                        }
 4957                    }
 4958                    anyhow::Ok(())
 4959                })??;
 4960                try_join_all(tasks).await.log_err();
 4961            }
 4962        }
 4963        this.update_in(cx, |this, window, cx| {
 4964            this.leader_updated(leader_id, window, cx)
 4965        })?;
 4966        Ok(())
 4967    }
 4968
 4969    async fn add_view_from_leader(
 4970        this: WeakEntity<Self>,
 4971        leader_id: PeerId,
 4972        view: &proto::View,
 4973        cx: &mut AsyncWindowContext,
 4974    ) -> Result<()> {
 4975        let this = this.upgrade().context("workspace dropped")?;
 4976
 4977        let Some(id) = view.id.clone() else {
 4978            anyhow::bail!("no id for view");
 4979        };
 4980        let id = ViewId::from_proto(id)?;
 4981        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 4982
 4983        let pane = this.update(cx, |this, _cx| {
 4984            let state = this
 4985                .follower_states
 4986                .get(&leader_id.into())
 4987                .context("stopped following")?;
 4988            anyhow::Ok(state.pane().clone())
 4989        })??;
 4990        let existing_item = pane.update_in(cx, |pane, window, cx| {
 4991            let client = this.read(cx).client().clone();
 4992            pane.items().find_map(|item| {
 4993                let item = item.to_followable_item_handle(cx)?;
 4994                if item.remote_id(&client, window, cx) == Some(id) {
 4995                    Some(item)
 4996                } else {
 4997                    None
 4998                }
 4999            })
 5000        })?;
 5001        let item = if let Some(existing_item) = existing_item {
 5002            existing_item
 5003        } else {
 5004            let variant = view.variant.clone();
 5005            anyhow::ensure!(variant.is_some(), "missing view variant");
 5006
 5007            let task = cx.update(|window, cx| {
 5008                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5009            })?;
 5010
 5011            let Some(task) = task else {
 5012                anyhow::bail!(
 5013                    "failed to construct view from leader (maybe from a different version of zed?)"
 5014                );
 5015            };
 5016
 5017            let mut new_item = task.await?;
 5018            pane.update_in(cx, |pane, window, cx| {
 5019                let mut item_to_remove = None;
 5020                for (ix, item) in pane.items().enumerate() {
 5021                    if let Some(item) = item.to_followable_item_handle(cx) {
 5022                        match new_item.dedup(item.as_ref(), window, cx) {
 5023                            Some(item::Dedup::KeepExisting) => {
 5024                                new_item =
 5025                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5026                                break;
 5027                            }
 5028                            Some(item::Dedup::ReplaceExisting) => {
 5029                                item_to_remove = Some((ix, item.item_id()));
 5030                                break;
 5031                            }
 5032                            None => {}
 5033                        }
 5034                    }
 5035                }
 5036
 5037                if let Some((ix, id)) = item_to_remove {
 5038                    pane.remove_item(id, false, false, window, cx);
 5039                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5040                }
 5041            })?;
 5042
 5043            new_item
 5044        };
 5045
 5046        this.update_in(cx, |this, window, cx| {
 5047            let state = this.follower_states.get_mut(&leader_id.into())?;
 5048            item.set_leader_id(Some(leader_id.into()), window, cx);
 5049            state.items_by_leader_view_id.insert(
 5050                id,
 5051                FollowerView {
 5052                    view: item,
 5053                    location: panel_id,
 5054                },
 5055            );
 5056
 5057            Some(())
 5058        })?;
 5059
 5060        Ok(())
 5061    }
 5062
 5063    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5064        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5065            return;
 5066        };
 5067
 5068        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5069            let buffer_entity_id = agent_location.buffer.entity_id();
 5070            let view_id = ViewId {
 5071                creator: CollaboratorId::Agent,
 5072                id: buffer_entity_id.as_u64(),
 5073            };
 5074            follower_state.active_view_id = Some(view_id);
 5075
 5076            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5077                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5078                hash_map::Entry::Vacant(entry) => {
 5079                    let existing_view =
 5080                        follower_state
 5081                            .center_pane
 5082                            .read(cx)
 5083                            .items()
 5084                            .find_map(|item| {
 5085                                let item = item.to_followable_item_handle(cx)?;
 5086                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5087                                    && item.project_item_model_ids(cx).as_slice()
 5088                                        == [buffer_entity_id]
 5089                                {
 5090                                    Some(item)
 5091                                } else {
 5092                                    None
 5093                                }
 5094                            });
 5095                    let view = existing_view.or_else(|| {
 5096                        agent_location.buffer.upgrade().and_then(|buffer| {
 5097                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5098                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5099                            })?
 5100                            .to_followable_item_handle(cx)
 5101                        })
 5102                    });
 5103
 5104                    view.map(|view| {
 5105                        entry.insert(FollowerView {
 5106                            view,
 5107                            location: None,
 5108                        })
 5109                    })
 5110                }
 5111            };
 5112
 5113            if let Some(item) = item {
 5114                item.view
 5115                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5116                item.view
 5117                    .update_agent_location(agent_location.position, window, cx);
 5118            }
 5119        } else {
 5120            follower_state.active_view_id = None;
 5121        }
 5122
 5123        self.leader_updated(CollaboratorId::Agent, window, cx);
 5124    }
 5125
 5126    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5127        let mut is_project_item = true;
 5128        let mut update = proto::UpdateActiveView::default();
 5129        if window.is_window_active() {
 5130            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5131
 5132            if let Some(item) = active_item
 5133                && item.item_focus_handle(cx).contains_focused(window, cx)
 5134            {
 5135                let leader_id = self
 5136                    .pane_for(&*item)
 5137                    .and_then(|pane| self.leader_for_pane(&pane));
 5138                let leader_peer_id = match leader_id {
 5139                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5140                    Some(CollaboratorId::Agent) | None => None,
 5141                };
 5142
 5143                if let Some(item) = item.to_followable_item_handle(cx) {
 5144                    let id = item
 5145                        .remote_id(&self.app_state.client, window, cx)
 5146                        .map(|id| id.to_proto());
 5147
 5148                    if let Some(id) = id
 5149                        && let Some(variant) = item.to_state_proto(window, cx)
 5150                    {
 5151                        let view = Some(proto::View {
 5152                            id: id.clone(),
 5153                            leader_id: leader_peer_id,
 5154                            variant: Some(variant),
 5155                            panel_id: panel_id.map(|id| id as i32),
 5156                        });
 5157
 5158                        is_project_item = item.is_project_item(window, cx);
 5159                        update = proto::UpdateActiveView {
 5160                            view,
 5161                            // TODO: Remove after version 0.145.x stabilizes.
 5162                            id,
 5163                            leader_id: leader_peer_id,
 5164                        };
 5165                    };
 5166                }
 5167            }
 5168        }
 5169
 5170        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5171        if active_view_id != self.last_active_view_id.as_ref() {
 5172            self.last_active_view_id = active_view_id.cloned();
 5173            self.update_followers(
 5174                is_project_item,
 5175                proto::update_followers::Variant::UpdateActiveView(update),
 5176                window,
 5177                cx,
 5178            );
 5179        }
 5180    }
 5181
 5182    fn active_item_for_followers(
 5183        &self,
 5184        window: &mut Window,
 5185        cx: &mut App,
 5186    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5187        let mut active_item = None;
 5188        let mut panel_id = None;
 5189        for dock in self.all_docks() {
 5190            if dock.focus_handle(cx).contains_focused(window, cx)
 5191                && let Some(panel) = dock.read(cx).active_panel()
 5192                && let Some(pane) = panel.pane(cx)
 5193                && let Some(item) = pane.read(cx).active_item()
 5194            {
 5195                active_item = Some(item);
 5196                panel_id = panel.remote_id();
 5197                break;
 5198            }
 5199        }
 5200
 5201        if active_item.is_none() {
 5202            active_item = self.active_pane().read(cx).active_item();
 5203        }
 5204        (active_item, panel_id)
 5205    }
 5206
 5207    fn update_followers(
 5208        &self,
 5209        project_only: bool,
 5210        update: proto::update_followers::Variant,
 5211        _: &mut Window,
 5212        cx: &mut App,
 5213    ) -> Option<()> {
 5214        // If this update only applies to for followers in the current project,
 5215        // then skip it unless this project is shared. If it applies to all
 5216        // followers, regardless of project, then set `project_id` to none,
 5217        // indicating that it goes to all followers.
 5218        let project_id = if project_only {
 5219            Some(self.project.read(cx).remote_id()?)
 5220        } else {
 5221            None
 5222        };
 5223        self.app_state().workspace_store.update(cx, |store, cx| {
 5224            store.update_followers(project_id, update, cx)
 5225        })
 5226    }
 5227
 5228    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5229        self.follower_states.iter().find_map(|(leader_id, state)| {
 5230            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5231                Some(*leader_id)
 5232            } else {
 5233                None
 5234            }
 5235        })
 5236    }
 5237
 5238    fn leader_updated(
 5239        &mut self,
 5240        leader_id: impl Into<CollaboratorId>,
 5241        window: &mut Window,
 5242        cx: &mut Context<Self>,
 5243    ) -> Option<Box<dyn ItemHandle>> {
 5244        cx.notify();
 5245
 5246        let leader_id = leader_id.into();
 5247        let (panel_id, item) = match leader_id {
 5248            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5249            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5250        };
 5251
 5252        let state = self.follower_states.get(&leader_id)?;
 5253        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5254        let pane;
 5255        if let Some(panel_id) = panel_id {
 5256            pane = self
 5257                .activate_panel_for_proto_id(panel_id, window, cx)?
 5258                .pane(cx)?;
 5259            let state = self.follower_states.get_mut(&leader_id)?;
 5260            state.dock_pane = Some(pane.clone());
 5261        } else {
 5262            pane = state.center_pane.clone();
 5263            let state = self.follower_states.get_mut(&leader_id)?;
 5264            if let Some(dock_pane) = state.dock_pane.take() {
 5265                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5266            }
 5267        }
 5268
 5269        pane.update(cx, |pane, cx| {
 5270            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5271            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5272                pane.activate_item(index, false, false, window, cx);
 5273            } else {
 5274                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5275            }
 5276
 5277            if focus_active_item {
 5278                pane.focus_active_item(window, cx)
 5279            }
 5280        });
 5281
 5282        Some(item)
 5283    }
 5284
 5285    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5286        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5287        let active_view_id = state.active_view_id?;
 5288        Some(
 5289            state
 5290                .items_by_leader_view_id
 5291                .get(&active_view_id)?
 5292                .view
 5293                .boxed_clone(),
 5294        )
 5295    }
 5296
 5297    fn active_item_for_peer(
 5298        &self,
 5299        peer_id: PeerId,
 5300        window: &mut Window,
 5301        cx: &mut Context<Self>,
 5302    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5303        let call = self.active_call()?;
 5304        let room = call.read(cx).room()?.read(cx);
 5305        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5306        let leader_in_this_app;
 5307        let leader_in_this_project;
 5308        match participant.location {
 5309            call::ParticipantLocation::SharedProject { project_id } => {
 5310                leader_in_this_app = true;
 5311                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5312            }
 5313            call::ParticipantLocation::UnsharedProject => {
 5314                leader_in_this_app = true;
 5315                leader_in_this_project = false;
 5316            }
 5317            call::ParticipantLocation::External => {
 5318                leader_in_this_app = false;
 5319                leader_in_this_project = false;
 5320            }
 5321        };
 5322        let state = self.follower_states.get(&peer_id.into())?;
 5323        let mut item_to_activate = None;
 5324        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5325            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5326                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5327            {
 5328                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5329            }
 5330        } else if let Some(shared_screen) =
 5331            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5332        {
 5333            item_to_activate = Some((None, Box::new(shared_screen)));
 5334        }
 5335        item_to_activate
 5336    }
 5337
 5338    fn shared_screen_for_peer(
 5339        &self,
 5340        peer_id: PeerId,
 5341        pane: &Entity<Pane>,
 5342        window: &mut Window,
 5343        cx: &mut App,
 5344    ) -> Option<Entity<SharedScreen>> {
 5345        let call = self.active_call()?;
 5346        let room = call.read(cx).room()?.clone();
 5347        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5348        let track = participant.video_tracks.values().next()?.clone();
 5349        let user = participant.user.clone();
 5350
 5351        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5352            if item.read(cx).peer_id == peer_id {
 5353                return Some(item);
 5354            }
 5355        }
 5356
 5357        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5358    }
 5359
 5360    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5361        if window.is_window_active() {
 5362            self.update_active_view_for_followers(window, cx);
 5363
 5364            if let Some(database_id) = self.database_id {
 5365                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5366                    .detach();
 5367            }
 5368        } else {
 5369            for pane in &self.panes {
 5370                pane.update(cx, |pane, cx| {
 5371                    if let Some(item) = pane.active_item() {
 5372                        item.workspace_deactivated(window, cx);
 5373                    }
 5374                    for item in pane.items() {
 5375                        if matches!(
 5376                            item.workspace_settings(cx).autosave,
 5377                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5378                        ) {
 5379                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5380                                .detach_and_log_err(cx);
 5381                        }
 5382                    }
 5383                });
 5384            }
 5385        }
 5386    }
 5387
 5388    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5389        self.active_call.as_ref().map(|(call, _)| call)
 5390    }
 5391
 5392    fn on_active_call_event(
 5393        &mut self,
 5394        _: &Entity<ActiveCall>,
 5395        event: &call::room::Event,
 5396        window: &mut Window,
 5397        cx: &mut Context<Self>,
 5398    ) {
 5399        match event {
 5400            call::room::Event::ParticipantLocationChanged { participant_id }
 5401            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5402                self.leader_updated(participant_id, window, cx);
 5403            }
 5404            _ => {}
 5405        }
 5406    }
 5407
 5408    pub fn database_id(&self) -> Option<WorkspaceId> {
 5409        self.database_id
 5410    }
 5411
 5412    pub fn session_id(&self) -> Option<String> {
 5413        self.session_id.clone()
 5414    }
 5415
 5416    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5417        let project = self.project().read(cx);
 5418        project
 5419            .visible_worktrees(cx)
 5420            .map(|worktree| worktree.read(cx).abs_path())
 5421            .collect::<Vec<_>>()
 5422    }
 5423
 5424    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5425        match member {
 5426            Member::Axis(PaneAxis { members, .. }) => {
 5427                for child in members.iter() {
 5428                    self.remove_panes(child.clone(), window, cx)
 5429                }
 5430            }
 5431            Member::Pane(pane) => {
 5432                self.force_remove_pane(&pane, &None, window, cx);
 5433            }
 5434        }
 5435    }
 5436
 5437    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5438        self.session_id.take();
 5439        self.serialize_workspace_internal(window, cx)
 5440    }
 5441
 5442    fn force_remove_pane(
 5443        &mut self,
 5444        pane: &Entity<Pane>,
 5445        focus_on: &Option<Entity<Pane>>,
 5446        window: &mut Window,
 5447        cx: &mut Context<Workspace>,
 5448    ) {
 5449        self.panes.retain(|p| p != pane);
 5450        if let Some(focus_on) = focus_on {
 5451            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5452        } else if self.active_pane() == pane {
 5453            self.panes
 5454                .last()
 5455                .unwrap()
 5456                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 5457        }
 5458        if self.last_active_center_pane == Some(pane.downgrade()) {
 5459            self.last_active_center_pane = None;
 5460        }
 5461        cx.notify();
 5462    }
 5463
 5464    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5465        if self._schedule_serialize_workspace.is_none() {
 5466            self._schedule_serialize_workspace =
 5467                Some(cx.spawn_in(window, async move |this, cx| {
 5468                    cx.background_executor()
 5469                        .timer(SERIALIZATION_THROTTLE_TIME)
 5470                        .await;
 5471                    this.update_in(cx, |this, window, cx| {
 5472                        this.serialize_workspace_internal(window, cx).detach();
 5473                        this._schedule_serialize_workspace.take();
 5474                    })
 5475                    .log_err();
 5476                }));
 5477        }
 5478    }
 5479
 5480    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5481        let Some(database_id) = self.database_id() else {
 5482            return Task::ready(());
 5483        };
 5484
 5485        fn serialize_pane_handle(
 5486            pane_handle: &Entity<Pane>,
 5487            window: &mut Window,
 5488            cx: &mut App,
 5489        ) -> SerializedPane {
 5490            let (items, active, pinned_count) = {
 5491                let pane = pane_handle.read(cx);
 5492                let active_item_id = pane.active_item().map(|item| item.item_id());
 5493                (
 5494                    pane.items()
 5495                        .filter_map(|handle| {
 5496                            let handle = handle.to_serializable_item_handle(cx)?;
 5497
 5498                            Some(SerializedItem {
 5499                                kind: Arc::from(handle.serialized_item_kind()),
 5500                                item_id: handle.item_id().as_u64(),
 5501                                active: Some(handle.item_id()) == active_item_id,
 5502                                preview: pane.is_active_preview_item(handle.item_id()),
 5503                            })
 5504                        })
 5505                        .collect::<Vec<_>>(),
 5506                    pane.has_focus(window, cx),
 5507                    pane.pinned_count(),
 5508                )
 5509            };
 5510
 5511            SerializedPane::new(items, active, pinned_count)
 5512        }
 5513
 5514        fn build_serialized_pane_group(
 5515            pane_group: &Member,
 5516            window: &mut Window,
 5517            cx: &mut App,
 5518        ) -> SerializedPaneGroup {
 5519            match pane_group {
 5520                Member::Axis(PaneAxis {
 5521                    axis,
 5522                    members,
 5523                    flexes,
 5524                    bounding_boxes: _,
 5525                }) => SerializedPaneGroup::Group {
 5526                    axis: SerializedAxis(*axis),
 5527                    children: members
 5528                        .iter()
 5529                        .map(|member| build_serialized_pane_group(member, window, cx))
 5530                        .collect::<Vec<_>>(),
 5531                    flexes: Some(flexes.lock().clone()),
 5532                },
 5533                Member::Pane(pane_handle) => {
 5534                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5535                }
 5536            }
 5537        }
 5538
 5539        fn build_serialized_docks(
 5540            this: &Workspace,
 5541            window: &mut Window,
 5542            cx: &mut App,
 5543        ) -> DockStructure {
 5544            let left_dock = this.left_dock.read(cx);
 5545            let left_visible = left_dock.is_open();
 5546            let left_active_panel = left_dock
 5547                .active_panel()
 5548                .map(|panel| panel.persistent_name().to_string());
 5549            let left_dock_zoom = left_dock
 5550                .active_panel()
 5551                .map(|panel| panel.is_zoomed(window, cx))
 5552                .unwrap_or(false);
 5553
 5554            let right_dock = this.right_dock.read(cx);
 5555            let right_visible = right_dock.is_open();
 5556            let right_active_panel = right_dock
 5557                .active_panel()
 5558                .map(|panel| panel.persistent_name().to_string());
 5559            let right_dock_zoom = right_dock
 5560                .active_panel()
 5561                .map(|panel| panel.is_zoomed(window, cx))
 5562                .unwrap_or(false);
 5563
 5564            let bottom_dock = this.bottom_dock.read(cx);
 5565            let bottom_visible = bottom_dock.is_open();
 5566            let bottom_active_panel = bottom_dock
 5567                .active_panel()
 5568                .map(|panel| panel.persistent_name().to_string());
 5569            let bottom_dock_zoom = bottom_dock
 5570                .active_panel()
 5571                .map(|panel| panel.is_zoomed(window, cx))
 5572                .unwrap_or(false);
 5573
 5574            DockStructure {
 5575                left: DockData {
 5576                    visible: left_visible,
 5577                    active_panel: left_active_panel,
 5578                    zoom: left_dock_zoom,
 5579                },
 5580                right: DockData {
 5581                    visible: right_visible,
 5582                    active_panel: right_active_panel,
 5583                    zoom: right_dock_zoom,
 5584                },
 5585                bottom: DockData {
 5586                    visible: bottom_visible,
 5587                    active_panel: bottom_active_panel,
 5588                    zoom: bottom_dock_zoom,
 5589                },
 5590            }
 5591        }
 5592
 5593        match self.serialize_workspace_location(cx) {
 5594            WorkspaceLocation::Location(location, paths) => {
 5595                let breakpoints = self.project.update(cx, |project, cx| {
 5596                    project
 5597                        .breakpoint_store()
 5598                        .read(cx)
 5599                        .all_source_breakpoints(cx)
 5600                });
 5601                let user_toolchains = self
 5602                    .project
 5603                    .read(cx)
 5604                    .user_toolchains(cx)
 5605                    .unwrap_or_default();
 5606
 5607                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5608                let docks = build_serialized_docks(self, window, cx);
 5609                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5610
 5611                let serialized_workspace = SerializedWorkspace {
 5612                    id: database_id,
 5613                    location,
 5614                    paths,
 5615                    center_group,
 5616                    window_bounds,
 5617                    display: Default::default(),
 5618                    docks,
 5619                    centered_layout: self.centered_layout,
 5620                    session_id: self.session_id.clone(),
 5621                    breakpoints,
 5622                    window_id: Some(window.window_handle().window_id().as_u64()),
 5623                    user_toolchains,
 5624                };
 5625
 5626                window.spawn(cx, async move |_| {
 5627                    persistence::DB.save_workspace(serialized_workspace).await;
 5628                })
 5629            }
 5630            WorkspaceLocation::DetachFromSession => window.spawn(cx, async move |_| {
 5631                persistence::DB
 5632                    .set_session_id(database_id, None)
 5633                    .await
 5634                    .log_err();
 5635            }),
 5636            WorkspaceLocation::None => Task::ready(()),
 5637        }
 5638    }
 5639
 5640    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5641        let paths = PathList::new(&self.root_paths(cx));
 5642        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5643            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5644        } else if self.project.read(cx).is_local() {
 5645            if !paths.is_empty() {
 5646                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5647            } else {
 5648                WorkspaceLocation::DetachFromSession
 5649            }
 5650        } else {
 5651            WorkspaceLocation::None
 5652        }
 5653    }
 5654
 5655    fn update_history(&self, cx: &mut App) {
 5656        let Some(id) = self.database_id() else {
 5657            return;
 5658        };
 5659        if !self.project.read(cx).is_local() {
 5660            return;
 5661        }
 5662        if let Some(manager) = HistoryManager::global(cx) {
 5663            let paths = PathList::new(&self.root_paths(cx));
 5664            manager.update(cx, |this, cx| {
 5665                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5666            });
 5667        }
 5668    }
 5669
 5670    async fn serialize_items(
 5671        this: &WeakEntity<Self>,
 5672        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5673        cx: &mut AsyncWindowContext,
 5674    ) -> Result<()> {
 5675        const CHUNK_SIZE: usize = 200;
 5676
 5677        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5678
 5679        while let Some(items_received) = serializable_items.next().await {
 5680            let unique_items =
 5681                items_received
 5682                    .into_iter()
 5683                    .fold(HashMap::default(), |mut acc, item| {
 5684                        acc.entry(item.item_id()).or_insert(item);
 5685                        acc
 5686                    });
 5687
 5688            // We use into_iter() here so that the references to the items are moved into
 5689            // the tasks and not kept alive while we're sleeping.
 5690            for (_, item) in unique_items.into_iter() {
 5691                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5692                    item.serialize(workspace, false, window, cx)
 5693                }) {
 5694                    cx.background_spawn(async move { task.await.log_err() })
 5695                        .detach();
 5696                }
 5697            }
 5698
 5699            cx.background_executor()
 5700                .timer(SERIALIZATION_THROTTLE_TIME)
 5701                .await;
 5702        }
 5703
 5704        Ok(())
 5705    }
 5706
 5707    pub(crate) fn enqueue_item_serialization(
 5708        &mut self,
 5709        item: Box<dyn SerializableItemHandle>,
 5710    ) -> Result<()> {
 5711        self.serializable_items_tx
 5712            .unbounded_send(item)
 5713            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5714    }
 5715
 5716    pub(crate) fn load_workspace(
 5717        serialized_workspace: SerializedWorkspace,
 5718        paths_to_open: Vec<Option<ProjectPath>>,
 5719        window: &mut Window,
 5720        cx: &mut Context<Workspace>,
 5721    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5722        cx.spawn_in(window, async move |workspace, cx| {
 5723            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5724
 5725            let mut center_group = None;
 5726            let mut center_items = None;
 5727
 5728            // Traverse the splits tree and add to things
 5729            if let Some((group, active_pane, items)) = serialized_workspace
 5730                .center_group
 5731                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5732                .await
 5733            {
 5734                center_items = Some(items);
 5735                center_group = Some((group, active_pane))
 5736            }
 5737
 5738            let mut items_by_project_path = HashMap::default();
 5739            let mut item_ids_by_kind = HashMap::default();
 5740            let mut all_deserialized_items = Vec::default();
 5741            cx.update(|_, cx| {
 5742                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5743                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5744                        item_ids_by_kind
 5745                            .entry(serializable_item_handle.serialized_item_kind())
 5746                            .or_insert(Vec::new())
 5747                            .push(item.item_id().as_u64() as ItemId);
 5748                    }
 5749
 5750                    if let Some(project_path) = item.project_path(cx) {
 5751                        items_by_project_path.insert(project_path, item.clone());
 5752                    }
 5753                    all_deserialized_items.push(item);
 5754                }
 5755            })?;
 5756
 5757            let opened_items = paths_to_open
 5758                .into_iter()
 5759                .map(|path_to_open| {
 5760                    path_to_open
 5761                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5762                })
 5763                .collect::<Vec<_>>();
 5764
 5765            // Remove old panes from workspace panes list
 5766            workspace.update_in(cx, |workspace, window, cx| {
 5767                if let Some((center_group, active_pane)) = center_group {
 5768                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5769
 5770                    // Swap workspace center group
 5771                    workspace.center = PaneGroup::with_root(center_group);
 5772                    workspace.center.set_is_center(true);
 5773                    workspace.center.mark_positions(cx);
 5774
 5775                    if let Some(active_pane) = active_pane {
 5776                        workspace.set_active_pane(&active_pane, window, cx);
 5777                        cx.focus_self(window);
 5778                    } else {
 5779                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5780                    }
 5781                }
 5782
 5783                let docks = serialized_workspace.docks;
 5784
 5785                for (dock, serialized_dock) in [
 5786                    (&mut workspace.right_dock, docks.right),
 5787                    (&mut workspace.left_dock, docks.left),
 5788                    (&mut workspace.bottom_dock, docks.bottom),
 5789                ]
 5790                .iter_mut()
 5791                {
 5792                    dock.update(cx, |dock, cx| {
 5793                        dock.serialized_dock = Some(serialized_dock.clone());
 5794                        dock.restore_state(window, cx);
 5795                    });
 5796                }
 5797
 5798                cx.notify();
 5799            })?;
 5800
 5801            let _ = project
 5802                .update(cx, |project, cx| {
 5803                    project
 5804                        .breakpoint_store()
 5805                        .update(cx, |breakpoint_store, cx| {
 5806                            breakpoint_store
 5807                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5808                        })
 5809                })?
 5810                .await;
 5811
 5812            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5813            // after loading the items, we might have different items and in order to avoid
 5814            // the database filling up, we delete items that haven't been loaded now.
 5815            //
 5816            // The items that have been loaded, have been saved after they've been added to the workspace.
 5817            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5818                item_ids_by_kind
 5819                    .into_iter()
 5820                    .map(|(item_kind, loaded_items)| {
 5821                        SerializableItemRegistry::cleanup(
 5822                            item_kind,
 5823                            serialized_workspace.id,
 5824                            loaded_items,
 5825                            window,
 5826                            cx,
 5827                        )
 5828                        .log_err()
 5829                    })
 5830                    .collect::<Vec<_>>()
 5831            })?;
 5832
 5833            futures::future::join_all(clean_up_tasks).await;
 5834
 5835            workspace
 5836                .update_in(cx, |workspace, window, cx| {
 5837                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5838                    workspace.serialize_workspace_internal(window, cx).detach();
 5839
 5840                    // Ensure that we mark the window as edited if we did load dirty items
 5841                    workspace.update_window_edited(window, cx);
 5842                })
 5843                .ok();
 5844
 5845            Ok(opened_items)
 5846        })
 5847    }
 5848
 5849    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5850        self.add_workspace_actions_listeners(div, window, cx)
 5851            .on_action(cx.listener(
 5852                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5853                    for action in &action_sequence.0 {
 5854                        window.dispatch_action(action.boxed_clone(), cx);
 5855                    }
 5856                },
 5857            ))
 5858            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5859            .on_action(cx.listener(Self::close_all_items_and_panes))
 5860            .on_action(cx.listener(Self::save_all))
 5861            .on_action(cx.listener(Self::send_keystrokes))
 5862            .on_action(cx.listener(Self::add_folder_to_project))
 5863            .on_action(cx.listener(Self::follow_next_collaborator))
 5864            .on_action(cx.listener(Self::close_window))
 5865            .on_action(cx.listener(Self::activate_pane_at_index))
 5866            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5867            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5868            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5869            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5870                let pane = workspace.active_pane().clone();
 5871                workspace.unfollow_in_pane(&pane, window, cx);
 5872            }))
 5873            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5874                workspace
 5875                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5876                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5877            }))
 5878            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5879                workspace
 5880                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5881                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5882            }))
 5883            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5884                workspace
 5885                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5886                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5887            }))
 5888            .on_action(
 5889                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5890                    workspace.activate_previous_pane(window, cx)
 5891                }),
 5892            )
 5893            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5894                workspace.activate_next_pane(window, cx)
 5895            }))
 5896            .on_action(
 5897                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5898                    workspace.activate_next_window(cx)
 5899                }),
 5900            )
 5901            .on_action(
 5902                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5903                    workspace.activate_previous_window(cx)
 5904                }),
 5905            )
 5906            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5907                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5908            }))
 5909            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5910                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5911            }))
 5912            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5913                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5914            }))
 5915            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5916                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5917            }))
 5918            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5919                workspace.activate_next_pane(window, cx)
 5920            }))
 5921            .on_action(cx.listener(
 5922                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5923                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5924                },
 5925            ))
 5926            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 5927                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 5928            }))
 5929            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 5930                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 5931            }))
 5932            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 5933                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 5934            }))
 5935            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 5936                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 5937            }))
 5938            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 5939                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 5940                    SplitDirection::Down,
 5941                    SplitDirection::Up,
 5942                    SplitDirection::Right,
 5943                    SplitDirection::Left,
 5944                ];
 5945                for dir in DIRECTION_PRIORITY {
 5946                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 5947                        workspace.swap_pane_in_direction(dir, cx);
 5948                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 5949                        break;
 5950                    }
 5951                }
 5952            }))
 5953            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 5954                workspace.move_pane_to_border(SplitDirection::Left, cx)
 5955            }))
 5956            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 5957                workspace.move_pane_to_border(SplitDirection::Right, cx)
 5958            }))
 5959            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 5960                workspace.move_pane_to_border(SplitDirection::Up, cx)
 5961            }))
 5962            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 5963                workspace.move_pane_to_border(SplitDirection::Down, cx)
 5964            }))
 5965            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 5966                this.toggle_dock(DockPosition::Left, window, cx);
 5967            }))
 5968            .on_action(cx.listener(
 5969                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 5970                    workspace.toggle_dock(DockPosition::Right, window, cx);
 5971                },
 5972            ))
 5973            .on_action(cx.listener(
 5974                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 5975                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 5976                },
 5977            ))
 5978            .on_action(cx.listener(
 5979                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 5980                    if !workspace.close_active_dock(window, cx) {
 5981                        cx.propagate();
 5982                    }
 5983                },
 5984            ))
 5985            .on_action(
 5986                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 5987                    workspace.close_all_docks(window, cx);
 5988                }),
 5989            )
 5990            .on_action(cx.listener(Self::toggle_all_docks))
 5991            .on_action(cx.listener(
 5992                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 5993                    workspace.clear_all_notifications(cx);
 5994                },
 5995            ))
 5996            .on_action(cx.listener(
 5997                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 5998                    workspace.clear_navigation_history(window, cx);
 5999                },
 6000            ))
 6001            .on_action(cx.listener(
 6002                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6003                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6004                        workspace.suppress_notification(&notification_id, cx);
 6005                    }
 6006                },
 6007            ))
 6008            .on_action(cx.listener(
 6009                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6010                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6011                },
 6012            ))
 6013            .on_action(
 6014                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6015                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6016                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6017                            trusted_worktrees.clear_trusted_paths()
 6018                        });
 6019                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6020                        cx.spawn(async move |_, cx| {
 6021                            if clear_task.await.log_err().is_some() {
 6022                                cx.update(|cx| reload(cx)).ok();
 6023                            }
 6024                        })
 6025                        .detach();
 6026                    }
 6027                }),
 6028            )
 6029            .on_action(cx.listener(
 6030                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6031                    workspace.reopen_closed_item(window, cx).detach();
 6032                },
 6033            ))
 6034            .on_action(cx.listener(
 6035                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6036                    for dock in workspace.all_docks() {
 6037                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6038                            let Some(panel) = dock.read(cx).active_panel() else {
 6039                                return;
 6040                            };
 6041
 6042                            // Set to `None`, then the size will fall back to the default.
 6043                            panel.clone().set_size(None, window, cx);
 6044
 6045                            return;
 6046                        }
 6047                    }
 6048                },
 6049            ))
 6050            .on_action(cx.listener(
 6051                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6052                    for dock in workspace.all_docks() {
 6053                        if let Some(panel) = dock.read(cx).visible_panel() {
 6054                            // Set to `None`, then the size will fall back to the default.
 6055                            panel.clone().set_size(None, window, cx);
 6056                        }
 6057                    }
 6058                },
 6059            ))
 6060            .on_action(cx.listener(
 6061                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6062                    adjust_active_dock_size_by_px(
 6063                        px_with_ui_font_fallback(act.px, cx),
 6064                        workspace,
 6065                        window,
 6066                        cx,
 6067                    );
 6068                },
 6069            ))
 6070            .on_action(cx.listener(
 6071                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6072                    adjust_active_dock_size_by_px(
 6073                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6074                        workspace,
 6075                        window,
 6076                        cx,
 6077                    );
 6078                },
 6079            ))
 6080            .on_action(cx.listener(
 6081                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6082                    adjust_open_docks_size_by_px(
 6083                        px_with_ui_font_fallback(act.px, cx),
 6084                        workspace,
 6085                        window,
 6086                        cx,
 6087                    );
 6088                },
 6089            ))
 6090            .on_action(cx.listener(
 6091                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6092                    adjust_open_docks_size_by_px(
 6093                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6094                        workspace,
 6095                        window,
 6096                        cx,
 6097                    );
 6098                },
 6099            ))
 6100            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6101            .on_action(cx.listener(
 6102                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6103                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6104                        let dock = active_dock.read(cx);
 6105                        if let Some(active_panel) = dock.active_panel() {
 6106                            if active_panel.pane(cx).is_none() {
 6107                                let mut recent_pane: Option<Entity<Pane>> = None;
 6108                                let mut recent_timestamp = 0;
 6109                                for pane_handle in workspace.panes() {
 6110                                    let pane = pane_handle.read(cx);
 6111                                    for entry in pane.activation_history() {
 6112                                        if entry.timestamp > recent_timestamp {
 6113                                            recent_timestamp = entry.timestamp;
 6114                                            recent_pane = Some(pane_handle.clone());
 6115                                        }
 6116                                    }
 6117                                }
 6118
 6119                                if let Some(pane) = recent_pane {
 6120                                    pane.update(cx, |pane, cx| {
 6121                                        let current_index = pane.active_item_index();
 6122                                        let items_len = pane.items_len();
 6123                                        if items_len > 0 {
 6124                                            let next_index = if current_index + 1 < items_len {
 6125                                                current_index + 1
 6126                                            } else {
 6127                                                0
 6128                                            };
 6129                                            pane.activate_item(
 6130                                                next_index, false, false, window, cx,
 6131                                            );
 6132                                        }
 6133                                    });
 6134                                    return;
 6135                                }
 6136                            }
 6137                        }
 6138                    }
 6139                    cx.propagate();
 6140                },
 6141            ))
 6142            .on_action(cx.listener(
 6143                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6144                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6145                        let dock = active_dock.read(cx);
 6146                        if let Some(active_panel) = dock.active_panel() {
 6147                            if active_panel.pane(cx).is_none() {
 6148                                let mut recent_pane: Option<Entity<Pane>> = None;
 6149                                let mut recent_timestamp = 0;
 6150                                for pane_handle in workspace.panes() {
 6151                                    let pane = pane_handle.read(cx);
 6152                                    for entry in pane.activation_history() {
 6153                                        if entry.timestamp > recent_timestamp {
 6154                                            recent_timestamp = entry.timestamp;
 6155                                            recent_pane = Some(pane_handle.clone());
 6156                                        }
 6157                                    }
 6158                                }
 6159
 6160                                if let Some(pane) = recent_pane {
 6161                                    pane.update(cx, |pane, cx| {
 6162                                        let current_index = pane.active_item_index();
 6163                                        let items_len = pane.items_len();
 6164                                        if items_len > 0 {
 6165                                            let prev_index = if current_index > 0 {
 6166                                                current_index - 1
 6167                                            } else {
 6168                                                items_len.saturating_sub(1)
 6169                                            };
 6170                                            pane.activate_item(
 6171                                                prev_index, false, false, window, cx,
 6172                                            );
 6173                                        }
 6174                                    });
 6175                                    return;
 6176                                }
 6177                            }
 6178                        }
 6179                    }
 6180                    cx.propagate();
 6181                },
 6182            ))
 6183            .on_action(cx.listener(Workspace::cancel))
 6184    }
 6185
 6186    #[cfg(any(test, feature = "test-support"))]
 6187    pub fn set_random_database_id(&mut self) {
 6188        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6189    }
 6190
 6191    #[cfg(any(test, feature = "test-support"))]
 6192    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6193        use node_runtime::NodeRuntime;
 6194        use session::Session;
 6195
 6196        let client = project.read(cx).client();
 6197        let user_store = project.read(cx).user_store();
 6198        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6199        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6200        window.activate_window();
 6201        let app_state = Arc::new(AppState {
 6202            languages: project.read(cx).languages().clone(),
 6203            workspace_store,
 6204            client,
 6205            user_store,
 6206            fs: project.read(cx).fs().clone(),
 6207            build_window_options: |_, _| Default::default(),
 6208            node_runtime: NodeRuntime::unavailable(),
 6209            session,
 6210        });
 6211        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6212        workspace
 6213            .active_pane
 6214            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx)));
 6215        workspace
 6216    }
 6217
 6218    pub fn register_action<A: Action>(
 6219        &mut self,
 6220        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6221    ) -> &mut Self {
 6222        let callback = Arc::new(callback);
 6223
 6224        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6225            let callback = callback.clone();
 6226            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6227                (callback)(workspace, event, window, cx)
 6228            }))
 6229        }));
 6230        self
 6231    }
 6232    pub fn register_action_renderer(
 6233        &mut self,
 6234        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6235    ) -> &mut Self {
 6236        self.workspace_actions.push(Box::new(callback));
 6237        self
 6238    }
 6239
 6240    fn add_workspace_actions_listeners(
 6241        &self,
 6242        mut div: Div,
 6243        window: &mut Window,
 6244        cx: &mut Context<Self>,
 6245    ) -> Div {
 6246        for action in self.workspace_actions.iter() {
 6247            div = (action)(div, self, window, cx)
 6248        }
 6249        div
 6250    }
 6251
 6252    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6253        self.modal_layer.read(cx).has_active_modal()
 6254    }
 6255
 6256    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6257        self.modal_layer.read(cx).active_modal()
 6258    }
 6259
 6260    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6261    where
 6262        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6263    {
 6264        self.modal_layer.update(cx, |modal_layer, cx| {
 6265            modal_layer.toggle_modal(window, cx, build)
 6266        })
 6267    }
 6268
 6269    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6270        self.modal_layer
 6271            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6272    }
 6273
 6274    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6275        self.toast_layer
 6276            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6277    }
 6278
 6279    pub fn toggle_centered_layout(
 6280        &mut self,
 6281        _: &ToggleCenteredLayout,
 6282        _: &mut Window,
 6283        cx: &mut Context<Self>,
 6284    ) {
 6285        self.centered_layout = !self.centered_layout;
 6286        if let Some(database_id) = self.database_id() {
 6287            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6288                .detach_and_log_err(cx);
 6289        }
 6290        cx.notify();
 6291    }
 6292
 6293    fn adjust_padding(padding: Option<f32>) -> f32 {
 6294        padding
 6295            .unwrap_or(CenteredPaddingSettings::default().0)
 6296            .clamp(
 6297                CenteredPaddingSettings::MIN_PADDING,
 6298                CenteredPaddingSettings::MAX_PADDING,
 6299            )
 6300    }
 6301
 6302    fn render_dock(
 6303        &self,
 6304        position: DockPosition,
 6305        dock: &Entity<Dock>,
 6306        window: &mut Window,
 6307        cx: &mut App,
 6308    ) -> Option<Div> {
 6309        if self.zoomed_position == Some(position) {
 6310            return None;
 6311        }
 6312
 6313        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6314            let pane = panel.pane(cx)?;
 6315            let follower_states = &self.follower_states;
 6316            leader_border_for_pane(follower_states, &pane, window, cx)
 6317        });
 6318
 6319        Some(
 6320            div()
 6321                .flex()
 6322                .flex_none()
 6323                .overflow_hidden()
 6324                .child(dock.clone())
 6325                .children(leader_border),
 6326        )
 6327    }
 6328
 6329    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6330        window.root().flatten()
 6331    }
 6332
 6333    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6334        self.zoomed.as_ref()
 6335    }
 6336
 6337    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6338        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6339            return;
 6340        };
 6341        let windows = cx.windows();
 6342        let next_window =
 6343            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6344                || {
 6345                    windows
 6346                        .iter()
 6347                        .cycle()
 6348                        .skip_while(|window| window.window_id() != current_window_id)
 6349                        .nth(1)
 6350                },
 6351            );
 6352
 6353        if let Some(window) = next_window {
 6354            window
 6355                .update(cx, |_, window, _| window.activate_window())
 6356                .ok();
 6357        }
 6358    }
 6359
 6360    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6361        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6362            return;
 6363        };
 6364        let windows = cx.windows();
 6365        let prev_window =
 6366            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6367                || {
 6368                    windows
 6369                        .iter()
 6370                        .rev()
 6371                        .cycle()
 6372                        .skip_while(|window| window.window_id() != current_window_id)
 6373                        .nth(1)
 6374                },
 6375            );
 6376
 6377        if let Some(window) = prev_window {
 6378            window
 6379                .update(cx, |_, window, _| window.activate_window())
 6380                .ok();
 6381        }
 6382    }
 6383
 6384    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6385        if cx.stop_active_drag(window) {
 6386        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6387            dismiss_app_notification(&notification_id, cx);
 6388        } else {
 6389            cx.propagate();
 6390        }
 6391    }
 6392
 6393    fn adjust_dock_size_by_px(
 6394        &mut self,
 6395        panel_size: Pixels,
 6396        dock_pos: DockPosition,
 6397        px: Pixels,
 6398        window: &mut Window,
 6399        cx: &mut Context<Self>,
 6400    ) {
 6401        match dock_pos {
 6402            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6403            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6404            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6405        }
 6406    }
 6407
 6408    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6409        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6410
 6411        self.left_dock.update(cx, |left_dock, cx| {
 6412            if WorkspaceSettings::get_global(cx)
 6413                .resize_all_panels_in_dock
 6414                .contains(&DockPosition::Left)
 6415            {
 6416                left_dock.resize_all_panels(Some(size), window, cx);
 6417            } else {
 6418                left_dock.resize_active_panel(Some(size), window, cx);
 6419            }
 6420        });
 6421        self.clamp_utility_pane_widths(window, cx);
 6422    }
 6423
 6424    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6425        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6426        self.left_dock.read_with(cx, |left_dock, cx| {
 6427            let left_dock_size = left_dock
 6428                .active_panel_size(window, cx)
 6429                .unwrap_or(Pixels::ZERO);
 6430            if left_dock_size + size > self.bounds.right() {
 6431                size = self.bounds.right() - left_dock_size
 6432            }
 6433        });
 6434        self.right_dock.update(cx, |right_dock, cx| {
 6435            if WorkspaceSettings::get_global(cx)
 6436                .resize_all_panels_in_dock
 6437                .contains(&DockPosition::Right)
 6438            {
 6439                right_dock.resize_all_panels(Some(size), window, cx);
 6440            } else {
 6441                right_dock.resize_active_panel(Some(size), window, cx);
 6442            }
 6443        });
 6444        self.clamp_utility_pane_widths(window, cx);
 6445    }
 6446
 6447    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6448        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6449        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6450            if WorkspaceSettings::get_global(cx)
 6451                .resize_all_panels_in_dock
 6452                .contains(&DockPosition::Bottom)
 6453            {
 6454                bottom_dock.resize_all_panels(Some(size), window, cx);
 6455            } else {
 6456                bottom_dock.resize_active_panel(Some(size), window, cx);
 6457            }
 6458        });
 6459        self.clamp_utility_pane_widths(window, cx);
 6460    }
 6461
 6462    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6463        let left_dock_width = self
 6464            .left_dock
 6465            .read(cx)
 6466            .active_panel_size(window, cx)
 6467            .unwrap_or(px(0.0));
 6468        let right_dock_width = self
 6469            .right_dock
 6470            .read(cx)
 6471            .active_panel_size(window, cx)
 6472            .unwrap_or(px(0.0));
 6473        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6474        center_pane_width - px(10.0)
 6475    }
 6476
 6477    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6478        let max_width = self.max_utility_pane_width(window, cx);
 6479
 6480        // Clamp left slot utility pane if it exists
 6481        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6482            let current_width = handle.width(cx);
 6483            if current_width > max_width {
 6484                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6485            }
 6486        }
 6487
 6488        // Clamp right slot utility pane if it exists
 6489        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6490            let current_width = handle.width(cx);
 6491            if current_width > max_width {
 6492                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6493            }
 6494        }
 6495    }
 6496
 6497    fn toggle_edit_predictions_all_files(
 6498        &mut self,
 6499        _: &ToggleEditPrediction,
 6500        _window: &mut Window,
 6501        cx: &mut Context<Self>,
 6502    ) {
 6503        let fs = self.project().read(cx).fs().clone();
 6504        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6505        update_settings_file(fs, cx, move |file, _| {
 6506            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6507        });
 6508    }
 6509
 6510    pub fn show_worktree_trust_security_modal(
 6511        &mut self,
 6512        toggle: bool,
 6513        window: &mut Window,
 6514        cx: &mut Context<Self>,
 6515    ) {
 6516        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6517            if toggle {
 6518                security_modal.update(cx, |security_modal, cx| {
 6519                    security_modal.dismiss(cx);
 6520                })
 6521            } else {
 6522                security_modal.update(cx, |security_modal, cx| {
 6523                    security_modal.refresh_restricted_paths(cx);
 6524                });
 6525            }
 6526        } else {
 6527            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6528                .map(|trusted_worktrees| {
 6529                    trusted_worktrees
 6530                        .read(cx)
 6531                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6532                })
 6533                .unwrap_or(false);
 6534            if has_restricted_worktrees {
 6535                let project = self.project().read(cx);
 6536                let remote_host = project.remote_connection_options(cx);
 6537                let worktree_store = project.worktree_store().downgrade();
 6538                self.toggle_modal(window, cx, |_, cx| {
 6539                    SecurityModal::new(worktree_store, remote_host, cx)
 6540                });
 6541            }
 6542        }
 6543    }
 6544
 6545    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6546        self.update_window_title(window, cx);
 6547        self.serialize_workspace(window, cx);
 6548        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6549        self.update_history(cx);
 6550    }
 6551}
 6552
 6553fn leader_border_for_pane(
 6554    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6555    pane: &Entity<Pane>,
 6556    _: &Window,
 6557    cx: &App,
 6558) -> Option<Div> {
 6559    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6560        if state.pane() == pane {
 6561            Some((*leader_id, state))
 6562        } else {
 6563            None
 6564        }
 6565    })?;
 6566
 6567    let mut leader_color = match leader_id {
 6568        CollaboratorId::PeerId(leader_peer_id) => {
 6569            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6570            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6571
 6572            cx.theme()
 6573                .players()
 6574                .color_for_participant(leader.participant_index.0)
 6575                .cursor
 6576        }
 6577        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6578    };
 6579    leader_color.fade_out(0.3);
 6580    Some(
 6581        div()
 6582            .absolute()
 6583            .size_full()
 6584            .left_0()
 6585            .top_0()
 6586            .border_2()
 6587            .border_color(leader_color),
 6588    )
 6589}
 6590
 6591fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6592    ZED_WINDOW_POSITION
 6593        .zip(*ZED_WINDOW_SIZE)
 6594        .map(|(position, size)| Bounds {
 6595            origin: position,
 6596            size,
 6597        })
 6598}
 6599
 6600fn open_items(
 6601    serialized_workspace: Option<SerializedWorkspace>,
 6602    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6603    window: &mut Window,
 6604    cx: &mut Context<Workspace>,
 6605) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6606    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6607        Workspace::load_workspace(
 6608            serialized_workspace,
 6609            project_paths_to_open
 6610                .iter()
 6611                .map(|(_, project_path)| project_path)
 6612                .cloned()
 6613                .collect(),
 6614            window,
 6615            cx,
 6616        )
 6617    });
 6618
 6619    cx.spawn_in(window, async move |workspace, cx| {
 6620        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6621
 6622        if let Some(restored_items) = restored_items {
 6623            let restored_items = restored_items.await?;
 6624
 6625            let restored_project_paths = restored_items
 6626                .iter()
 6627                .filter_map(|item| {
 6628                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6629                        .ok()
 6630                        .flatten()
 6631                })
 6632                .collect::<HashSet<_>>();
 6633
 6634            for restored_item in restored_items {
 6635                opened_items.push(restored_item.map(Ok));
 6636            }
 6637
 6638            project_paths_to_open
 6639                .iter_mut()
 6640                .for_each(|(_, project_path)| {
 6641                    if let Some(project_path_to_open) = project_path
 6642                        && restored_project_paths.contains(project_path_to_open)
 6643                    {
 6644                        *project_path = None;
 6645                    }
 6646                });
 6647        } else {
 6648            for _ in 0..project_paths_to_open.len() {
 6649                opened_items.push(None);
 6650            }
 6651        }
 6652        assert!(opened_items.len() == project_paths_to_open.len());
 6653
 6654        let tasks =
 6655            project_paths_to_open
 6656                .into_iter()
 6657                .enumerate()
 6658                .map(|(ix, (abs_path, project_path))| {
 6659                    let workspace = workspace.clone();
 6660                    cx.spawn(async move |cx| {
 6661                        let file_project_path = project_path?;
 6662                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6663                            workspace.project().update(cx, |project, cx| {
 6664                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6665                            })
 6666                        });
 6667
 6668                        // We only want to open file paths here. If one of the items
 6669                        // here is a directory, it was already opened further above
 6670                        // with a `find_or_create_worktree`.
 6671                        if let Ok(task) = abs_path_task
 6672                            && task.await.is_none_or(|p| p.is_file())
 6673                        {
 6674                            return Some((
 6675                                ix,
 6676                                workspace
 6677                                    .update_in(cx, |workspace, window, cx| {
 6678                                        workspace.open_path(
 6679                                            file_project_path,
 6680                                            None,
 6681                                            true,
 6682                                            window,
 6683                                            cx,
 6684                                        )
 6685                                    })
 6686                                    .log_err()?
 6687                                    .await,
 6688                            ));
 6689                        }
 6690                        None
 6691                    })
 6692                });
 6693
 6694        let tasks = tasks.collect::<Vec<_>>();
 6695
 6696        let tasks = futures::future::join_all(tasks);
 6697        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6698            opened_items[ix] = Some(path_open_result);
 6699        }
 6700
 6701        Ok(opened_items)
 6702    })
 6703}
 6704
 6705enum ActivateInDirectionTarget {
 6706    Pane(Entity<Pane>),
 6707    Dock(Entity<Dock>),
 6708}
 6709
 6710fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6711    workspace
 6712        .update(cx, |workspace, _, cx| {
 6713            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6714                struct DatabaseFailedNotification;
 6715
 6716                workspace.show_notification(
 6717                    NotificationId::unique::<DatabaseFailedNotification>(),
 6718                    cx,
 6719                    |cx| {
 6720                        cx.new(|cx| {
 6721                            MessageNotification::new("Failed to load the database file.", cx)
 6722                                .primary_message("File an Issue")
 6723                                .primary_icon(IconName::Plus)
 6724                                .primary_on_click(|window, cx| {
 6725                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6726                                })
 6727                        })
 6728                    },
 6729                );
 6730            }
 6731        })
 6732        .log_err();
 6733}
 6734
 6735fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6736    if val == 0 {
 6737        ThemeSettings::get_global(cx).ui_font_size(cx)
 6738    } else {
 6739        px(val as f32)
 6740    }
 6741}
 6742
 6743fn adjust_active_dock_size_by_px(
 6744    px: Pixels,
 6745    workspace: &mut Workspace,
 6746    window: &mut Window,
 6747    cx: &mut Context<Workspace>,
 6748) {
 6749    let Some(active_dock) = workspace
 6750        .all_docks()
 6751        .into_iter()
 6752        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6753    else {
 6754        return;
 6755    };
 6756    let dock = active_dock.read(cx);
 6757    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6758        return;
 6759    };
 6760    let dock_pos = dock.position();
 6761    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6762}
 6763
 6764fn adjust_open_docks_size_by_px(
 6765    px: Pixels,
 6766    workspace: &mut Workspace,
 6767    window: &mut Window,
 6768    cx: &mut Context<Workspace>,
 6769) {
 6770    let docks = workspace
 6771        .all_docks()
 6772        .into_iter()
 6773        .filter_map(|dock| {
 6774            if dock.read(cx).is_open() {
 6775                let dock = dock.read(cx);
 6776                let panel_size = dock.active_panel_size(window, cx)?;
 6777                let dock_pos = dock.position();
 6778                Some((panel_size, dock_pos, px))
 6779            } else {
 6780                None
 6781            }
 6782        })
 6783        .collect::<Vec<_>>();
 6784
 6785    docks
 6786        .into_iter()
 6787        .for_each(|(panel_size, dock_pos, offset)| {
 6788            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6789        });
 6790}
 6791
 6792impl Focusable for Workspace {
 6793    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6794        self.active_pane.focus_handle(cx)
 6795    }
 6796}
 6797
 6798#[derive(Clone)]
 6799struct DraggedDock(DockPosition);
 6800
 6801impl Render for DraggedDock {
 6802    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6803        gpui::Empty
 6804    }
 6805}
 6806
 6807impl Render for Workspace {
 6808    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6809        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6810        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6811            log::info!("Rendered first frame");
 6812        }
 6813        let mut context = KeyContext::new_with_defaults();
 6814        context.add("Workspace");
 6815        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6816        if let Some(status) = self
 6817            .debugger_provider
 6818            .as_ref()
 6819            .and_then(|provider| provider.active_thread_state(cx))
 6820        {
 6821            match status {
 6822                ThreadStatus::Running | ThreadStatus::Stepping => {
 6823                    context.add("debugger_running");
 6824                }
 6825                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6826                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6827            }
 6828        }
 6829
 6830        if self.left_dock.read(cx).is_open() {
 6831            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6832                context.set("left_dock", active_panel.panel_key());
 6833            }
 6834        }
 6835
 6836        if self.right_dock.read(cx).is_open() {
 6837            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6838                context.set("right_dock", active_panel.panel_key());
 6839            }
 6840        }
 6841
 6842        if self.bottom_dock.read(cx).is_open() {
 6843            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6844                context.set("bottom_dock", active_panel.panel_key());
 6845            }
 6846        }
 6847
 6848        let centered_layout = self.centered_layout
 6849            && self.center.panes().len() == 1
 6850            && self.active_item(cx).is_some();
 6851        let render_padding = |size| {
 6852            (size > 0.0).then(|| {
 6853                div()
 6854                    .h_full()
 6855                    .w(relative(size))
 6856                    .bg(cx.theme().colors().editor_background)
 6857                    .border_color(cx.theme().colors().pane_group_border)
 6858            })
 6859        };
 6860        let paddings = if centered_layout {
 6861            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6862            (
 6863                render_padding(Self::adjust_padding(
 6864                    settings.left_padding.map(|padding| padding.0),
 6865                )),
 6866                render_padding(Self::adjust_padding(
 6867                    settings.right_padding.map(|padding| padding.0),
 6868                )),
 6869            )
 6870        } else {
 6871            (None, None)
 6872        };
 6873        let ui_font = theme::setup_ui_font(window, cx);
 6874
 6875        let theme = cx.theme().clone();
 6876        let colors = theme.colors();
 6877        let notification_entities = self
 6878            .notifications
 6879            .iter()
 6880            .map(|(_, notification)| notification.entity_id())
 6881            .collect::<Vec<_>>();
 6882        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6883
 6884        client_side_decorations(
 6885            self.actions(div(), window, cx)
 6886                .key_context(context)
 6887                .relative()
 6888                .size_full()
 6889                .flex()
 6890                .flex_col()
 6891                .font(ui_font)
 6892                .gap_0()
 6893                .justify_start()
 6894                .items_start()
 6895                .text_color(colors.text)
 6896                .overflow_hidden()
 6897                .children(self.titlebar_item.clone())
 6898                .on_modifiers_changed(move |_, _, cx| {
 6899                    for &id in &notification_entities {
 6900                        cx.notify(id);
 6901                    }
 6902                })
 6903                .child(
 6904                    div()
 6905                        .size_full()
 6906                        .relative()
 6907                        .flex_1()
 6908                        .flex()
 6909                        .flex_col()
 6910                        .child(
 6911                            div()
 6912                                .id("workspace")
 6913                                .bg(colors.background)
 6914                                .relative()
 6915                                .flex_1()
 6916                                .w_full()
 6917                                .flex()
 6918                                .flex_col()
 6919                                .overflow_hidden()
 6920                                .border_t_1()
 6921                                .border_b_1()
 6922                                .border_color(colors.border)
 6923                                .child({
 6924                                    let this = cx.entity();
 6925                                    canvas(
 6926                                        move |bounds, window, cx| {
 6927                                            this.update(cx, |this, cx| {
 6928                                                let bounds_changed = this.bounds != bounds;
 6929                                                this.bounds = bounds;
 6930
 6931                                                if bounds_changed {
 6932                                                    this.left_dock.update(cx, |dock, cx| {
 6933                                                        dock.clamp_panel_size(
 6934                                                            bounds.size.width,
 6935                                                            window,
 6936                                                            cx,
 6937                                                        )
 6938                                                    });
 6939
 6940                                                    this.right_dock.update(cx, |dock, cx| {
 6941                                                        dock.clamp_panel_size(
 6942                                                            bounds.size.width,
 6943                                                            window,
 6944                                                            cx,
 6945                                                        )
 6946                                                    });
 6947
 6948                                                    this.bottom_dock.update(cx, |dock, cx| {
 6949                                                        dock.clamp_panel_size(
 6950                                                            bounds.size.height,
 6951                                                            window,
 6952                                                            cx,
 6953                                                        )
 6954                                                    });
 6955                                                }
 6956                                            })
 6957                                        },
 6958                                        |_, _, _, _| {},
 6959                                    )
 6960                                    .absolute()
 6961                                    .size_full()
 6962                                })
 6963                                .when(self.zoomed.is_none(), |this| {
 6964                                    this.on_drag_move(cx.listener(
 6965                                        move |workspace,
 6966                                              e: &DragMoveEvent<DraggedDock>,
 6967                                              window,
 6968                                              cx| {
 6969                                            if workspace.previous_dock_drag_coordinates
 6970                                                != Some(e.event.position)
 6971                                            {
 6972                                                workspace.previous_dock_drag_coordinates =
 6973                                                    Some(e.event.position);
 6974                                                match e.drag(cx).0 {
 6975                                                    DockPosition::Left => {
 6976                                                        workspace.resize_left_dock(
 6977                                                            e.event.position.x
 6978                                                                - workspace.bounds.left(),
 6979                                                            window,
 6980                                                            cx,
 6981                                                        );
 6982                                                    }
 6983                                                    DockPosition::Right => {
 6984                                                        workspace.resize_right_dock(
 6985                                                            workspace.bounds.right()
 6986                                                                - e.event.position.x,
 6987                                                            window,
 6988                                                            cx,
 6989                                                        );
 6990                                                    }
 6991                                                    DockPosition::Bottom => {
 6992                                                        workspace.resize_bottom_dock(
 6993                                                            workspace.bounds.bottom()
 6994                                                                - e.event.position.y,
 6995                                                            window,
 6996                                                            cx,
 6997                                                        );
 6998                                                    }
 6999                                                };
 7000                                                workspace.serialize_workspace(window, cx);
 7001                                            }
 7002                                        },
 7003                                    ))
 7004                                    .on_drag_move(cx.listener(
 7005                                        move |workspace,
 7006                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7007                                              window,
 7008                                              cx| {
 7009                                            let slot = e.drag(cx).0;
 7010                                            match slot {
 7011                                                UtilityPaneSlot::Left => {
 7012                                                    let left_dock_width = workspace.left_dock.read(cx)
 7013                                                        .active_panel_size(window, cx)
 7014                                                        .unwrap_or(gpui::px(0.0));
 7015                                                    let new_width = e.event.position.x
 7016                                                        - workspace.bounds.left()
 7017                                                        - left_dock_width;
 7018                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7019                                                }
 7020                                                UtilityPaneSlot::Right => {
 7021                                                    let right_dock_width = workspace.right_dock.read(cx)
 7022                                                        .active_panel_size(window, cx)
 7023                                                        .unwrap_or(gpui::px(0.0));
 7024                                                    let new_width = workspace.bounds.right()
 7025                                                        - e.event.position.x
 7026                                                        - right_dock_width;
 7027                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7028                                                }
 7029                                            }
 7030                                        },
 7031                                    ))
 7032                                })
 7033                                .child({
 7034                                    match bottom_dock_layout {
 7035                                        BottomDockLayout::Full => div()
 7036                                            .flex()
 7037                                            .flex_col()
 7038                                            .h_full()
 7039                                            .child(
 7040                                                div()
 7041                                                    .flex()
 7042                                                    .flex_row()
 7043                                                    .flex_1()
 7044                                                    .overflow_hidden()
 7045                                                    .children(self.render_dock(
 7046                                                        DockPosition::Left,
 7047                                                        &self.left_dock,
 7048                                                        window,
 7049                                                        cx,
 7050                                                    ))
 7051                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7052                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7053                                                            this.when(pane.expanded(cx), |this| {
 7054                                                                this.child(
 7055                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7056                                                                )
 7057                                                            })
 7058                                                        })
 7059                                                    })
 7060                                                    .child(
 7061                                                        div()
 7062                                                            .flex()
 7063                                                            .flex_col()
 7064                                                            .flex_1()
 7065                                                            .overflow_hidden()
 7066                                                            .child(
 7067                                                                h_flex()
 7068                                                                    .flex_1()
 7069                                                                    .when_some(
 7070                                                                        paddings.0,
 7071                                                                        |this, p| {
 7072                                                                            this.child(
 7073                                                                                p.border_r_1(),
 7074                                                                            )
 7075                                                                        },
 7076                                                                    )
 7077                                                                    .child(self.center.render(
 7078                                                                        self.zoomed.as_ref(),
 7079                                                                        &PaneRenderContext {
 7080                                                                            follower_states:
 7081                                                                                &self.follower_states,
 7082                                                                            active_call: self.active_call(),
 7083                                                                            active_pane: &self.active_pane,
 7084                                                                            app_state: &self.app_state,
 7085                                                                            project: &self.project,
 7086                                                                            workspace: &self.weak_self,
 7087                                                                        },
 7088                                                                        window,
 7089                                                                        cx,
 7090                                                                    ))
 7091                                                                    .when_some(
 7092                                                                        paddings.1,
 7093                                                                        |this, p| {
 7094                                                                            this.child(
 7095                                                                                p.border_l_1(),
 7096                                                                            )
 7097                                                                        },
 7098                                                                    ),
 7099                                                            ),
 7100                                                    )
 7101                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7102                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7103                                                            this.when(pane.expanded(cx), |this| {
 7104                                                                this.child(
 7105                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7106                                                                )
 7107                                                            })
 7108                                                        })
 7109                                                    })
 7110                                                    .children(self.render_dock(
 7111                                                        DockPosition::Right,
 7112                                                        &self.right_dock,
 7113                                                        window,
 7114                                                        cx,
 7115                                                    )),
 7116                                            )
 7117                                            .child(div().w_full().children(self.render_dock(
 7118                                                DockPosition::Bottom,
 7119                                                &self.bottom_dock,
 7120                                                window,
 7121                                                cx
 7122                                            ))),
 7123
 7124                                        BottomDockLayout::LeftAligned => div()
 7125                                            .flex()
 7126                                            .flex_row()
 7127                                            .h_full()
 7128                                            .child(
 7129                                                div()
 7130                                                    .flex()
 7131                                                    .flex_col()
 7132                                                    .flex_1()
 7133                                                    .h_full()
 7134                                                    .child(
 7135                                                        div()
 7136                                                            .flex()
 7137                                                            .flex_row()
 7138                                                            .flex_1()
 7139                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7140                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7141                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7142                                                                    this.when(pane.expanded(cx), |this| {
 7143                                                                        this.child(
 7144                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7145                                                                        )
 7146                                                                    })
 7147                                                                })
 7148                                                            })
 7149                                                            .child(
 7150                                                                div()
 7151                                                                    .flex()
 7152                                                                    .flex_col()
 7153                                                                    .flex_1()
 7154                                                                    .overflow_hidden()
 7155                                                                    .child(
 7156                                                                        h_flex()
 7157                                                                            .flex_1()
 7158                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7159                                                                            .child(self.center.render(
 7160                                                                                self.zoomed.as_ref(),
 7161                                                                                &PaneRenderContext {
 7162                                                                                    follower_states:
 7163                                                                                        &self.follower_states,
 7164                                                                                    active_call: self.active_call(),
 7165                                                                                    active_pane: &self.active_pane,
 7166                                                                                    app_state: &self.app_state,
 7167                                                                                    project: &self.project,
 7168                                                                                    workspace: &self.weak_self,
 7169                                                                                },
 7170                                                                                window,
 7171                                                                                cx,
 7172                                                                            ))
 7173                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7174                                                                    )
 7175                                                            )
 7176                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7177                                                                this.when(pane.expanded(cx), |this| {
 7178                                                                    this.child(
 7179                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7180                                                                    )
 7181                                                                })
 7182                                                            })
 7183                                                    )
 7184                                                    .child(
 7185                                                        div()
 7186                                                            .w_full()
 7187                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7188                                                    ),
 7189                                            )
 7190                                            .children(self.render_dock(
 7191                                                DockPosition::Right,
 7192                                                &self.right_dock,
 7193                                                window,
 7194                                                cx,
 7195                                            )),
 7196
 7197                                        BottomDockLayout::RightAligned => div()
 7198                                            .flex()
 7199                                            .flex_row()
 7200                                            .h_full()
 7201                                            .children(self.render_dock(
 7202                                                DockPosition::Left,
 7203                                                &self.left_dock,
 7204                                                window,
 7205                                                cx,
 7206                                            ))
 7207                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7208                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7209                                                    this.when(pane.expanded(cx), |this| {
 7210                                                        this.child(
 7211                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7212                                                        )
 7213                                                    })
 7214                                                })
 7215                                            })
 7216                                            .child(
 7217                                                div()
 7218                                                    .flex()
 7219                                                    .flex_col()
 7220                                                    .flex_1()
 7221                                                    .h_full()
 7222                                                    .child(
 7223                                                        div()
 7224                                                            .flex()
 7225                                                            .flex_row()
 7226                                                            .flex_1()
 7227                                                            .child(
 7228                                                                div()
 7229                                                                    .flex()
 7230                                                                    .flex_col()
 7231                                                                    .flex_1()
 7232                                                                    .overflow_hidden()
 7233                                                                    .child(
 7234                                                                        h_flex()
 7235                                                                            .flex_1()
 7236                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7237                                                                            .child(self.center.render(
 7238                                                                                self.zoomed.as_ref(),
 7239                                                                                &PaneRenderContext {
 7240                                                                                    follower_states:
 7241                                                                                        &self.follower_states,
 7242                                                                                    active_call: self.active_call(),
 7243                                                                                    active_pane: &self.active_pane,
 7244                                                                                    app_state: &self.app_state,
 7245                                                                                    project: &self.project,
 7246                                                                                    workspace: &self.weak_self,
 7247                                                                                },
 7248                                                                                window,
 7249                                                                                cx,
 7250                                                                            ))
 7251                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7252                                                                    )
 7253                                                            )
 7254                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7255                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7256                                                                    this.when(pane.expanded(cx), |this| {
 7257                                                                        this.child(
 7258                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7259                                                                        )
 7260                                                                    })
 7261                                                                })
 7262                                                            })
 7263                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7264                                                    )
 7265                                                    .child(
 7266                                                        div()
 7267                                                            .w_full()
 7268                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7269                                                    ),
 7270                                            ),
 7271
 7272                                        BottomDockLayout::Contained => div()
 7273                                            .flex()
 7274                                            .flex_row()
 7275                                            .h_full()
 7276                                            .children(self.render_dock(
 7277                                                DockPosition::Left,
 7278                                                &self.left_dock,
 7279                                                window,
 7280                                                cx,
 7281                                            ))
 7282                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7283                                                this.when(pane.expanded(cx), |this| {
 7284                                                    this.child(
 7285                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7286                                                    )
 7287                                                })
 7288                                            })
 7289                                            .child(
 7290                                                div()
 7291                                                    .flex()
 7292                                                    .flex_col()
 7293                                                    .flex_1()
 7294                                                    .overflow_hidden()
 7295                                                    .child(
 7296                                                        h_flex()
 7297                                                            .flex_1()
 7298                                                            .when_some(paddings.0, |this, p| {
 7299                                                                this.child(p.border_r_1())
 7300                                                            })
 7301                                                            .child(self.center.render(
 7302                                                                self.zoomed.as_ref(),
 7303                                                                &PaneRenderContext {
 7304                                                                    follower_states:
 7305                                                                        &self.follower_states,
 7306                                                                    active_call: self.active_call(),
 7307                                                                    active_pane: &self.active_pane,
 7308                                                                    app_state: &self.app_state,
 7309                                                                    project: &self.project,
 7310                                                                    workspace: &self.weak_self,
 7311                                                                },
 7312                                                                window,
 7313                                                                cx,
 7314                                                            ))
 7315                                                            .when_some(paddings.1, |this, p| {
 7316                                                                this.child(p.border_l_1())
 7317                                                            }),
 7318                                                    )
 7319                                                    .children(self.render_dock(
 7320                                                        DockPosition::Bottom,
 7321                                                        &self.bottom_dock,
 7322                                                        window,
 7323                                                        cx,
 7324                                                    )),
 7325                                            )
 7326                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7327                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7328                                                    this.when(pane.expanded(cx), |this| {
 7329                                                        this.child(
 7330                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7331                                                        )
 7332                                                    })
 7333                                                })
 7334                                            })
 7335                                            .children(self.render_dock(
 7336                                                DockPosition::Right,
 7337                                                &self.right_dock,
 7338                                                window,
 7339                                                cx,
 7340                                            )),
 7341                                    }
 7342                                })
 7343                                .children(self.zoomed.as_ref().and_then(|view| {
 7344                                    let zoomed_view = view.upgrade()?;
 7345                                    let div = div()
 7346                                        .occlude()
 7347                                        .absolute()
 7348                                        .overflow_hidden()
 7349                                        .border_color(colors.border)
 7350                                        .bg(colors.background)
 7351                                        .child(zoomed_view)
 7352                                        .inset_0()
 7353                                        .shadow_lg();
 7354
 7355                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7356                                       return Some(div);
 7357                                    }
 7358
 7359                                    Some(match self.zoomed_position {
 7360                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7361                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7362                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7363                                        None => {
 7364                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7365                                        }
 7366                                    })
 7367                                }))
 7368                                .children(self.render_notifications(window, cx)),
 7369                        )
 7370                        .when(self.status_bar_visible(cx), |parent| {
 7371                            parent.child(self.status_bar.clone())
 7372                        })
 7373                        .child(self.modal_layer.clone())
 7374                        .child(self.toast_layer.clone()),
 7375                ),
 7376            window,
 7377            cx,
 7378        )
 7379    }
 7380}
 7381
 7382impl WorkspaceStore {
 7383    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7384        Self {
 7385            workspaces: Default::default(),
 7386            _subscriptions: vec![
 7387                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7388                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7389            ],
 7390            client,
 7391        }
 7392    }
 7393
 7394    pub fn update_followers(
 7395        &self,
 7396        project_id: Option<u64>,
 7397        update: proto::update_followers::Variant,
 7398        cx: &App,
 7399    ) -> Option<()> {
 7400        let active_call = ActiveCall::try_global(cx)?;
 7401        let room_id = active_call.read(cx).room()?.read(cx).id();
 7402        self.client
 7403            .send(proto::UpdateFollowers {
 7404                room_id,
 7405                project_id,
 7406                variant: Some(update),
 7407            })
 7408            .log_err()
 7409    }
 7410
 7411    pub async fn handle_follow(
 7412        this: Entity<Self>,
 7413        envelope: TypedEnvelope<proto::Follow>,
 7414        mut cx: AsyncApp,
 7415    ) -> Result<proto::FollowResponse> {
 7416        this.update(&mut cx, |this, cx| {
 7417            let follower = Follower {
 7418                project_id: envelope.payload.project_id,
 7419                peer_id: envelope.original_sender_id()?,
 7420            };
 7421
 7422            let mut response = proto::FollowResponse::default();
 7423            this.workspaces.retain(|workspace| {
 7424                workspace
 7425                    .update(cx, |workspace, window, cx| {
 7426                        let handler_response =
 7427                            workspace.handle_follow(follower.project_id, window, cx);
 7428                        if let Some(active_view) = handler_response.active_view
 7429                            && workspace.project.read(cx).remote_id() == follower.project_id
 7430                        {
 7431                            response.active_view = Some(active_view)
 7432                        }
 7433                    })
 7434                    .is_ok()
 7435            });
 7436
 7437            Ok(response)
 7438        })?
 7439    }
 7440
 7441    async fn handle_update_followers(
 7442        this: Entity<Self>,
 7443        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7444        mut cx: AsyncApp,
 7445    ) -> Result<()> {
 7446        let leader_id = envelope.original_sender_id()?;
 7447        let update = envelope.payload;
 7448
 7449        this.update(&mut cx, |this, cx| {
 7450            this.workspaces.retain(|workspace| {
 7451                workspace
 7452                    .update(cx, |workspace, window, cx| {
 7453                        let project_id = workspace.project.read(cx).remote_id();
 7454                        if update.project_id != project_id && update.project_id.is_some() {
 7455                            return;
 7456                        }
 7457                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7458                    })
 7459                    .is_ok()
 7460            });
 7461            Ok(())
 7462        })?
 7463    }
 7464
 7465    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7466        &self.workspaces
 7467    }
 7468}
 7469
 7470impl ViewId {
 7471    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7472        Ok(Self {
 7473            creator: message
 7474                .creator
 7475                .map(CollaboratorId::PeerId)
 7476                .context("creator is missing")?,
 7477            id: message.id,
 7478        })
 7479    }
 7480
 7481    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7482        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7483            Some(proto::ViewId {
 7484                creator: Some(peer_id),
 7485                id: self.id,
 7486            })
 7487        } else {
 7488            None
 7489        }
 7490    }
 7491}
 7492
 7493impl FollowerState {
 7494    fn pane(&self) -> &Entity<Pane> {
 7495        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7496    }
 7497}
 7498
 7499pub trait WorkspaceHandle {
 7500    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7501}
 7502
 7503impl WorkspaceHandle for Entity<Workspace> {
 7504    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7505        self.read(cx)
 7506            .worktrees(cx)
 7507            .flat_map(|worktree| {
 7508                let worktree_id = worktree.read(cx).id();
 7509                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7510                    worktree_id,
 7511                    path: f.path.clone(),
 7512                })
 7513            })
 7514            .collect::<Vec<_>>()
 7515    }
 7516}
 7517
 7518pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7519    DB.last_workspace().await.log_err().flatten()
 7520}
 7521
 7522pub fn last_session_workspace_locations(
 7523    last_session_id: &str,
 7524    last_session_window_stack: Option<Vec<WindowId>>,
 7525) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7526    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7527        .log_err()
 7528}
 7529
 7530actions!(
 7531    collab,
 7532    [
 7533        /// Opens the channel notes for the current call.
 7534        ///
 7535        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7536        /// channel in the collab panel.
 7537        ///
 7538        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7539        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7540        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7541        OpenChannelNotes,
 7542        /// Mutes your microphone.
 7543        Mute,
 7544        /// Deafens yourself (mute both microphone and speakers).
 7545        Deafen,
 7546        /// Leaves the current call.
 7547        LeaveCall,
 7548        /// Shares the current project with collaborators.
 7549        ShareProject,
 7550        /// Shares your screen with collaborators.
 7551        ScreenShare,
 7552        /// Copies the current room name and session id for debugging purposes.
 7553        CopyRoomId,
 7554    ]
 7555);
 7556actions!(
 7557    zed,
 7558    [
 7559        /// Opens the Zed log file.
 7560        OpenLog,
 7561        /// Reveals the Zed log file in the system file manager.
 7562        RevealLogInFileManager
 7563    ]
 7564);
 7565
 7566async fn join_channel_internal(
 7567    channel_id: ChannelId,
 7568    app_state: &Arc<AppState>,
 7569    requesting_window: Option<WindowHandle<Workspace>>,
 7570    active_call: &Entity<ActiveCall>,
 7571    cx: &mut AsyncApp,
 7572) -> Result<bool> {
 7573    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7574        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7575            return (false, None);
 7576        };
 7577
 7578        let already_in_channel = room.channel_id() == Some(channel_id);
 7579        let should_prompt = room.is_sharing_project()
 7580            && !room.remote_participants().is_empty()
 7581            && !already_in_channel;
 7582        let open_room = if already_in_channel {
 7583            active_call.room().cloned()
 7584        } else {
 7585            None
 7586        };
 7587        (should_prompt, open_room)
 7588    })?;
 7589
 7590    if let Some(room) = open_room {
 7591        let task = room.update(cx, |room, cx| {
 7592            if let Some((project, host)) = room.most_active_project(cx) {
 7593                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7594            }
 7595
 7596            None
 7597        })?;
 7598        if let Some(task) = task {
 7599            task.await?;
 7600        }
 7601        return anyhow::Ok(true);
 7602    }
 7603
 7604    if should_prompt {
 7605        if let Some(workspace) = requesting_window {
 7606            let answer = workspace
 7607                .update(cx, |_, window, cx| {
 7608                    window.prompt(
 7609                        PromptLevel::Warning,
 7610                        "Do you want to switch channels?",
 7611                        Some("Leaving this call will unshare your current project."),
 7612                        &["Yes, Join Channel", "Cancel"],
 7613                        cx,
 7614                    )
 7615                })?
 7616                .await;
 7617
 7618            if answer == Ok(1) {
 7619                return Ok(false);
 7620            }
 7621        } else {
 7622            return Ok(false); // unreachable!() hopefully
 7623        }
 7624    }
 7625
 7626    let client = cx.update(|cx| active_call.read(cx).client())?;
 7627
 7628    let mut client_status = client.status();
 7629
 7630    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7631    'outer: loop {
 7632        let Some(status) = client_status.recv().await else {
 7633            anyhow::bail!("error connecting");
 7634        };
 7635
 7636        match status {
 7637            Status::Connecting
 7638            | Status::Authenticating
 7639            | Status::Authenticated
 7640            | Status::Reconnecting
 7641            | Status::Reauthenticating
 7642            | Status::Reauthenticated => continue,
 7643            Status::Connected { .. } => break 'outer,
 7644            Status::SignedOut | Status::AuthenticationError => {
 7645                return Err(ErrorCode::SignedOut.into());
 7646            }
 7647            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7648            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7649                return Err(ErrorCode::Disconnected.into());
 7650            }
 7651        }
 7652    }
 7653
 7654    let room = active_call
 7655        .update(cx, |active_call, cx| {
 7656            active_call.join_channel(channel_id, cx)
 7657        })?
 7658        .await?;
 7659
 7660    let Some(room) = room else {
 7661        return anyhow::Ok(true);
 7662    };
 7663
 7664    room.update(cx, |room, _| room.room_update_completed())?
 7665        .await;
 7666
 7667    let task = room.update(cx, |room, cx| {
 7668        if let Some((project, host)) = room.most_active_project(cx) {
 7669            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7670        }
 7671
 7672        // If you are the first to join a channel, see if you should share your project.
 7673        if room.remote_participants().is_empty()
 7674            && !room.local_participant_is_guest()
 7675            && let Some(workspace) = requesting_window
 7676        {
 7677            let project = workspace.update(cx, |workspace, _, cx| {
 7678                let project = workspace.project.read(cx);
 7679
 7680                if !CallSettings::get_global(cx).share_on_join {
 7681                    return None;
 7682                }
 7683
 7684                if (project.is_local() || project.is_via_remote_server())
 7685                    && project.visible_worktrees(cx).any(|tree| {
 7686                        tree.read(cx)
 7687                            .root_entry()
 7688                            .is_some_and(|entry| entry.is_dir())
 7689                    })
 7690                {
 7691                    Some(workspace.project.clone())
 7692                } else {
 7693                    None
 7694                }
 7695            });
 7696            if let Ok(Some(project)) = project {
 7697                return Some(cx.spawn(async move |room, cx| {
 7698                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7699                        .await?;
 7700                    Ok(())
 7701                }));
 7702            }
 7703        }
 7704
 7705        None
 7706    })?;
 7707    if let Some(task) = task {
 7708        task.await?;
 7709        return anyhow::Ok(true);
 7710    }
 7711    anyhow::Ok(false)
 7712}
 7713
 7714pub fn join_channel(
 7715    channel_id: ChannelId,
 7716    app_state: Arc<AppState>,
 7717    requesting_window: Option<WindowHandle<Workspace>>,
 7718    cx: &mut App,
 7719) -> Task<Result<()>> {
 7720    let active_call = ActiveCall::global(cx);
 7721    cx.spawn(async move |cx| {
 7722        let result =
 7723            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7724                .await;
 7725
 7726        // join channel succeeded, and opened a window
 7727        if matches!(result, Ok(true)) {
 7728            return anyhow::Ok(());
 7729        }
 7730
 7731        // find an existing workspace to focus and show call controls
 7732        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7733        if active_window.is_none() {
 7734            // no open workspaces, make one to show the error in (blergh)
 7735            let (window_handle, _) = cx
 7736                .update(|cx| {
 7737                    Workspace::new_local(vec![], app_state.clone(), requesting_window, None, cx)
 7738                })?
 7739                .await?;
 7740
 7741            if result.is_ok() {
 7742                cx.update(|cx| {
 7743                    cx.dispatch_action(&OpenChannelNotes);
 7744                })
 7745                .log_err();
 7746            }
 7747
 7748            active_window = Some(window_handle);
 7749        }
 7750
 7751        if let Err(err) = result {
 7752            log::error!("failed to join channel: {}", err);
 7753            if let Some(active_window) = active_window {
 7754                active_window
 7755                    .update(cx, |_, window, cx| {
 7756                        let detail: SharedString = match err.error_code() {
 7757                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7758                            ErrorCode::UpgradeRequired => concat!(
 7759                                "Your are running an unsupported version of Zed. ",
 7760                                "Please update to continue."
 7761                            )
 7762                            .into(),
 7763                            ErrorCode::NoSuchChannel => concat!(
 7764                                "No matching channel was found. ",
 7765                                "Please check the link and try again."
 7766                            )
 7767                            .into(),
 7768                            ErrorCode::Forbidden => concat!(
 7769                                "This channel is private, and you do not have access. ",
 7770                                "Please ask someone to add you and try again."
 7771                            )
 7772                            .into(),
 7773                            ErrorCode::Disconnected => {
 7774                                "Please check your internet connection and try again.".into()
 7775                            }
 7776                            _ => format!("{}\n\nPlease try again.", err).into(),
 7777                        };
 7778                        window.prompt(
 7779                            PromptLevel::Critical,
 7780                            "Failed to join channel",
 7781                            Some(&detail),
 7782                            &["Ok"],
 7783                            cx,
 7784                        )
 7785                    })?
 7786                    .await
 7787                    .ok();
 7788            }
 7789        }
 7790
 7791        // return ok, we showed the error to the user.
 7792        anyhow::Ok(())
 7793    })
 7794}
 7795
 7796pub async fn get_any_active_workspace(
 7797    app_state: Arc<AppState>,
 7798    mut cx: AsyncApp,
 7799) -> anyhow::Result<WindowHandle<Workspace>> {
 7800    // find an existing workspace to focus and show call controls
 7801    let active_window = activate_any_workspace_window(&mut cx);
 7802    if active_window.is_none() {
 7803        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, cx))?
 7804            .await?;
 7805    }
 7806    activate_any_workspace_window(&mut cx).context("could not open zed")
 7807}
 7808
 7809fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7810    cx.update(|cx| {
 7811        if let Some(workspace_window) = cx
 7812            .active_window()
 7813            .and_then(|window| window.downcast::<Workspace>())
 7814        {
 7815            return Some(workspace_window);
 7816        }
 7817
 7818        for window in cx.windows() {
 7819            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7820                workspace_window
 7821                    .update(cx, |_, window, _| window.activate_window())
 7822                    .ok();
 7823                return Some(workspace_window);
 7824            }
 7825        }
 7826        None
 7827    })
 7828    .ok()
 7829    .flatten()
 7830}
 7831
 7832pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7833    cx.windows()
 7834        .into_iter()
 7835        .filter_map(|window| window.downcast::<Workspace>())
 7836        .filter(|workspace| {
 7837            workspace
 7838                .read(cx)
 7839                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7840        })
 7841        .collect()
 7842}
 7843
 7844#[derive(Default)]
 7845pub struct OpenOptions {
 7846    pub visible: Option<OpenVisible>,
 7847    pub focus: Option<bool>,
 7848    pub open_new_workspace: Option<bool>,
 7849    pub prefer_focused_window: bool,
 7850    pub replace_window: Option<WindowHandle<Workspace>>,
 7851    pub env: Option<HashMap<String, String>>,
 7852}
 7853
 7854#[allow(clippy::type_complexity)]
 7855pub fn open_paths(
 7856    abs_paths: &[PathBuf],
 7857    app_state: Arc<AppState>,
 7858    open_options: OpenOptions,
 7859    cx: &mut App,
 7860) -> Task<
 7861    anyhow::Result<(
 7862        WindowHandle<Workspace>,
 7863        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7864    )>,
 7865> {
 7866    let abs_paths = abs_paths.to_vec();
 7867    let mut existing = None;
 7868    let mut best_match = None;
 7869    let mut open_visible = OpenVisible::All;
 7870    #[cfg(target_os = "windows")]
 7871    let wsl_path = abs_paths
 7872        .iter()
 7873        .find_map(|p| util::paths::WslPath::from_path(p));
 7874
 7875    cx.spawn(async move |cx| {
 7876        if open_options.open_new_workspace != Some(true) {
 7877            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7878            let all_metadatas = futures::future::join_all(all_paths)
 7879                .await
 7880                .into_iter()
 7881                .filter_map(|result| result.ok().flatten())
 7882                .collect::<Vec<_>>();
 7883
 7884            cx.update(|cx| {
 7885                for window in local_workspace_windows(cx) {
 7886                    if let Ok(workspace) = window.read(cx) {
 7887                        let m = workspace.project.read(cx).visibility_for_paths(
 7888                            &abs_paths,
 7889                            &all_metadatas,
 7890                            open_options.open_new_workspace == None,
 7891                            cx,
 7892                        );
 7893                        if m > best_match {
 7894                            existing = Some(window);
 7895                            best_match = m;
 7896                        } else if best_match.is_none()
 7897                            && open_options.open_new_workspace == Some(false)
 7898                        {
 7899                            existing = Some(window)
 7900                        }
 7901                    }
 7902                }
 7903            })?;
 7904
 7905            if open_options.open_new_workspace.is_none()
 7906                && (existing.is_none() || open_options.prefer_focused_window)
 7907                && all_metadatas.iter().all(|file| !file.is_dir)
 7908            {
 7909                cx.update(|cx| {
 7910                    if let Some(window) = cx
 7911                        .active_window()
 7912                        .and_then(|window| window.downcast::<Workspace>())
 7913                        && let Ok(workspace) = window.read(cx)
 7914                    {
 7915                        let project = workspace.project().read(cx);
 7916                        if project.is_local() && !project.is_via_collab() {
 7917                            existing = Some(window);
 7918                            open_visible = OpenVisible::None;
 7919                            return;
 7920                        }
 7921                    }
 7922                    for window in local_workspace_windows(cx) {
 7923                        if let Ok(workspace) = window.read(cx) {
 7924                            let project = workspace.project().read(cx);
 7925                            if project.is_via_collab() {
 7926                                continue;
 7927                            }
 7928                            existing = Some(window);
 7929                            open_visible = OpenVisible::None;
 7930                            break;
 7931                        }
 7932                    }
 7933                })?;
 7934            }
 7935        }
 7936
 7937        let result = if let Some(existing) = existing {
 7938            let open_task = existing
 7939                .update(cx, |workspace, window, cx| {
 7940                    window.activate_window();
 7941                    workspace.open_paths(
 7942                        abs_paths,
 7943                        OpenOptions {
 7944                            visible: Some(open_visible),
 7945                            ..Default::default()
 7946                        },
 7947                        None,
 7948                        window,
 7949                        cx,
 7950                    )
 7951                })?
 7952                .await;
 7953
 7954            _ = existing.update(cx, |workspace, _, cx| {
 7955                for item in open_task.iter().flatten() {
 7956                    if let Err(e) = item {
 7957                        workspace.show_error(&e, cx);
 7958                    }
 7959                }
 7960            });
 7961
 7962            Ok((existing, open_task))
 7963        } else {
 7964            cx.update(move |cx| {
 7965                Workspace::new_local(
 7966                    abs_paths,
 7967                    app_state.clone(),
 7968                    open_options.replace_window,
 7969                    open_options.env,
 7970                    cx,
 7971                )
 7972            })?
 7973            .await
 7974        };
 7975
 7976        #[cfg(target_os = "windows")]
 7977        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 7978            && let Ok((workspace, _)) = &result
 7979        {
 7980            workspace
 7981                .update(cx, move |workspace, _window, cx| {
 7982                    struct OpenInWsl;
 7983                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 7984                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 7985                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 7986                        cx.new(move |cx| {
 7987                            MessageNotification::new(msg, cx)
 7988                                .primary_message("Open in WSL")
 7989                                .primary_icon(IconName::FolderOpen)
 7990                                .primary_on_click(move |window, cx| {
 7991                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 7992                                            distro: remote::WslConnectionOptions {
 7993                                                    distro_name: distro.clone(),
 7994                                                user: None,
 7995                                            },
 7996                                            paths: vec![path.clone().into()],
 7997                                        }), cx)
 7998                                })
 7999                        })
 8000                    });
 8001                })
 8002                .unwrap();
 8003        };
 8004        result
 8005    })
 8006}
 8007
 8008pub fn open_new(
 8009    open_options: OpenOptions,
 8010    app_state: Arc<AppState>,
 8011    cx: &mut App,
 8012    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8013) -> Task<anyhow::Result<()>> {
 8014    let task = Workspace::new_local(Vec::new(), app_state, None, open_options.env, cx);
 8015    cx.spawn(async move |cx| {
 8016        let (workspace, opened_paths) = task.await?;
 8017        workspace.update(cx, |workspace, window, cx| {
 8018            if opened_paths.is_empty() {
 8019                init(workspace, window, cx)
 8020            }
 8021        })?;
 8022        Ok(())
 8023    })
 8024}
 8025
 8026pub fn create_and_open_local_file(
 8027    path: &'static Path,
 8028    window: &mut Window,
 8029    cx: &mut Context<Workspace>,
 8030    default_content: impl 'static + Send + FnOnce() -> Rope,
 8031) -> Task<Result<Box<dyn ItemHandle>>> {
 8032    cx.spawn_in(window, async move |workspace, cx| {
 8033        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8034        if !fs.is_file(path).await {
 8035            fs.create_file(path, Default::default()).await?;
 8036            fs.save(path, &default_content(), Default::default())
 8037                .await?;
 8038        }
 8039
 8040        let mut items = workspace
 8041            .update_in(cx, |workspace, window, cx| {
 8042                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8043                    workspace.open_paths(
 8044                        vec![path.to_path_buf()],
 8045                        OpenOptions {
 8046                            visible: Some(OpenVisible::None),
 8047                            ..Default::default()
 8048                        },
 8049                        None,
 8050                        window,
 8051                        cx,
 8052                    )
 8053                })
 8054            })?
 8055            .await?
 8056            .await;
 8057
 8058        let item = items.pop().flatten();
 8059        item.with_context(|| format!("path {path:?} is not a file"))?
 8060    })
 8061}
 8062
 8063pub fn open_remote_project_with_new_connection(
 8064    window: WindowHandle<Workspace>,
 8065    remote_connection: Arc<dyn RemoteConnection>,
 8066    cancel_rx: oneshot::Receiver<()>,
 8067    delegate: Arc<dyn RemoteClientDelegate>,
 8068    app_state: Arc<AppState>,
 8069    paths: Vec<PathBuf>,
 8070    cx: &mut App,
 8071) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8072    cx.spawn(async move |cx| {
 8073        let (workspace_id, serialized_workspace) =
 8074            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8075                .await?;
 8076
 8077        let session = match cx
 8078            .update(|cx| {
 8079                remote::RemoteClient::new(
 8080                    ConnectionIdentifier::Workspace(workspace_id.0),
 8081                    remote_connection,
 8082                    cancel_rx,
 8083                    delegate,
 8084                    cx,
 8085                )
 8086            })?
 8087            .await?
 8088        {
 8089            Some(result) => result,
 8090            None => return Ok(Vec::new()),
 8091        };
 8092
 8093        let project = cx.update(|cx| {
 8094            project::Project::remote(
 8095                session,
 8096                app_state.client.clone(),
 8097                app_state.node_runtime.clone(),
 8098                app_state.user_store.clone(),
 8099                app_state.languages.clone(),
 8100                app_state.fs.clone(),
 8101                true,
 8102                cx,
 8103            )
 8104        })?;
 8105
 8106        open_remote_project_inner(
 8107            project,
 8108            paths,
 8109            workspace_id,
 8110            serialized_workspace,
 8111            app_state,
 8112            window,
 8113            cx,
 8114        )
 8115        .await
 8116    })
 8117}
 8118
 8119pub fn open_remote_project_with_existing_connection(
 8120    connection_options: RemoteConnectionOptions,
 8121    project: Entity<Project>,
 8122    paths: Vec<PathBuf>,
 8123    app_state: Arc<AppState>,
 8124    window: WindowHandle<Workspace>,
 8125    cx: &mut AsyncApp,
 8126) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8127    cx.spawn(async move |cx| {
 8128        let (workspace_id, serialized_workspace) =
 8129            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8130
 8131        open_remote_project_inner(
 8132            project,
 8133            paths,
 8134            workspace_id,
 8135            serialized_workspace,
 8136            app_state,
 8137            window,
 8138            cx,
 8139        )
 8140        .await
 8141    })
 8142}
 8143
 8144async fn open_remote_project_inner(
 8145    project: Entity<Project>,
 8146    paths: Vec<PathBuf>,
 8147    workspace_id: WorkspaceId,
 8148    serialized_workspace: Option<SerializedWorkspace>,
 8149    app_state: Arc<AppState>,
 8150    window: WindowHandle<Workspace>,
 8151    cx: &mut AsyncApp,
 8152) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8153    let toolchains = DB.toolchains(workspace_id).await?;
 8154    for (toolchain, worktree_id, path) in toolchains {
 8155        project
 8156            .update(cx, |this, cx| {
 8157                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8158            })?
 8159            .await;
 8160    }
 8161    let mut project_paths_to_open = vec![];
 8162    let mut project_path_errors = vec![];
 8163
 8164    for path in paths {
 8165        let result = cx
 8166            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8167            .await;
 8168        match result {
 8169            Ok((_, project_path)) => {
 8170                project_paths_to_open.push((path.clone(), Some(project_path)));
 8171            }
 8172            Err(error) => {
 8173                project_path_errors.push(error);
 8174            }
 8175        };
 8176    }
 8177
 8178    if project_paths_to_open.is_empty() {
 8179        return Err(project_path_errors.pop().context("no paths given")?);
 8180    }
 8181
 8182    if let Some(detach_session_task) = window
 8183        .update(cx, |_workspace, window, cx| {
 8184            cx.spawn_in(window, async move |this, cx| {
 8185                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8186            })
 8187        })
 8188        .ok()
 8189    {
 8190        detach_session_task.await.ok();
 8191    }
 8192
 8193    cx.update_window(window.into(), |_, window, cx| {
 8194        window.replace_root(cx, |window, cx| {
 8195            telemetry::event!("SSH Project Opened");
 8196
 8197            let mut workspace =
 8198                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8199            workspace.update_history(cx);
 8200
 8201            if let Some(ref serialized) = serialized_workspace {
 8202                workspace.centered_layout = serialized.centered_layout;
 8203            }
 8204
 8205            workspace
 8206        });
 8207    })?;
 8208
 8209    let items = window
 8210        .update(cx, |_, window, cx| {
 8211            window.activate_window();
 8212            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8213        })?
 8214        .await?;
 8215
 8216    window.update(cx, |workspace, _, cx| {
 8217        for error in project_path_errors {
 8218            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8219                if let Some(path) = error.error_tag("path") {
 8220                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8221                }
 8222            } else {
 8223                workspace.show_error(&error, cx)
 8224            }
 8225        }
 8226    })?;
 8227
 8228    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8229}
 8230
 8231fn deserialize_remote_project(
 8232    connection_options: RemoteConnectionOptions,
 8233    paths: Vec<PathBuf>,
 8234    cx: &AsyncApp,
 8235) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8236    cx.background_spawn(async move {
 8237        let remote_connection_id = persistence::DB
 8238            .get_or_create_remote_connection(connection_options)
 8239            .await?;
 8240
 8241        let serialized_workspace =
 8242            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8243
 8244        let workspace_id = if let Some(workspace_id) =
 8245            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8246        {
 8247            workspace_id
 8248        } else {
 8249            persistence::DB.next_id().await?
 8250        };
 8251
 8252        Ok((workspace_id, serialized_workspace))
 8253    })
 8254}
 8255
 8256pub fn join_in_room_project(
 8257    project_id: u64,
 8258    follow_user_id: u64,
 8259    app_state: Arc<AppState>,
 8260    cx: &mut App,
 8261) -> Task<Result<()>> {
 8262    let windows = cx.windows();
 8263    cx.spawn(async move |cx| {
 8264        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8265            window_handle
 8266                .downcast::<Workspace>()
 8267                .and_then(|window_handle| {
 8268                    window_handle
 8269                        .update(cx, |workspace, _window, cx| {
 8270                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8271                                Some(window_handle)
 8272                            } else {
 8273                                None
 8274                            }
 8275                        })
 8276                        .unwrap_or(None)
 8277                })
 8278        });
 8279
 8280        let workspace = if let Some(existing_workspace) = existing_workspace {
 8281            existing_workspace
 8282        } else {
 8283            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8284            let room = active_call
 8285                .read_with(cx, |call, _| call.room().cloned())?
 8286                .context("not in a call")?;
 8287            let project = room
 8288                .update(cx, |room, cx| {
 8289                    room.join_project(
 8290                        project_id,
 8291                        app_state.languages.clone(),
 8292                        app_state.fs.clone(),
 8293                        cx,
 8294                    )
 8295                })?
 8296                .await?;
 8297
 8298            let window_bounds_override = window_bounds_env_override();
 8299            cx.update(|cx| {
 8300                let mut options = (app_state.build_window_options)(None, cx);
 8301                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8302                cx.open_window(options, |window, cx| {
 8303                    cx.new(|cx| {
 8304                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8305                    })
 8306                })
 8307            })??
 8308        };
 8309
 8310        workspace.update(cx, |workspace, window, cx| {
 8311            cx.activate(true);
 8312            window.activate_window();
 8313
 8314            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8315                let follow_peer_id = room
 8316                    .read(cx)
 8317                    .remote_participants()
 8318                    .iter()
 8319                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8320                    .map(|(_, p)| p.peer_id)
 8321                    .or_else(|| {
 8322                        // If we couldn't follow the given user, follow the host instead.
 8323                        let collaborator = workspace
 8324                            .project()
 8325                            .read(cx)
 8326                            .collaborators()
 8327                            .values()
 8328                            .find(|collaborator| collaborator.is_host)?;
 8329                        Some(collaborator.peer_id)
 8330                    });
 8331
 8332                if let Some(follow_peer_id) = follow_peer_id {
 8333                    workspace.follow(follow_peer_id, window, cx);
 8334                }
 8335            }
 8336        })?;
 8337
 8338        anyhow::Ok(())
 8339    })
 8340}
 8341
 8342pub fn reload(cx: &mut App) {
 8343    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8344    let mut workspace_windows = cx
 8345        .windows()
 8346        .into_iter()
 8347        .filter_map(|window| window.downcast::<Workspace>())
 8348        .collect::<Vec<_>>();
 8349
 8350    // If multiple windows have unsaved changes, and need a save prompt,
 8351    // prompt in the active window before switching to a different window.
 8352    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8353
 8354    let mut prompt = None;
 8355    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8356        prompt = window
 8357            .update(cx, |_, window, cx| {
 8358                window.prompt(
 8359                    PromptLevel::Info,
 8360                    "Are you sure you want to restart?",
 8361                    None,
 8362                    &["Restart", "Cancel"],
 8363                    cx,
 8364                )
 8365            })
 8366            .ok();
 8367    }
 8368
 8369    cx.spawn(async move |cx| {
 8370        if let Some(prompt) = prompt {
 8371            let answer = prompt.await?;
 8372            if answer != 0 {
 8373                return Ok(());
 8374            }
 8375        }
 8376
 8377        // If the user cancels any save prompt, then keep the app open.
 8378        for window in workspace_windows {
 8379            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8380                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8381            }) && !should_close.await?
 8382            {
 8383                return Ok(());
 8384            }
 8385        }
 8386        cx.update(|cx| cx.restart())
 8387    })
 8388    .detach_and_log_err(cx);
 8389}
 8390
 8391fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8392    let mut parts = value.split(',');
 8393    let x: usize = parts.next()?.parse().ok()?;
 8394    let y: usize = parts.next()?.parse().ok()?;
 8395    Some(point(px(x as f32), px(y as f32)))
 8396}
 8397
 8398fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8399    let mut parts = value.split(',');
 8400    let width: usize = parts.next()?.parse().ok()?;
 8401    let height: usize = parts.next()?.parse().ok()?;
 8402    Some(size(px(width as f32), px(height as f32)))
 8403}
 8404
 8405/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8406pub fn client_side_decorations(
 8407    element: impl IntoElement,
 8408    window: &mut Window,
 8409    cx: &mut App,
 8410) -> Stateful<Div> {
 8411    const BORDER_SIZE: Pixels = px(1.0);
 8412    let decorations = window.window_decorations();
 8413
 8414    match decorations {
 8415        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8416        Decorations::Server => window.set_client_inset(px(0.0)),
 8417    }
 8418
 8419    struct GlobalResizeEdge(ResizeEdge);
 8420    impl Global for GlobalResizeEdge {}
 8421
 8422    div()
 8423        .id("window-backdrop")
 8424        .bg(transparent_black())
 8425        .map(|div| match decorations {
 8426            Decorations::Server => div,
 8427            Decorations::Client { tiling, .. } => div
 8428                .when(!(tiling.top || tiling.right), |div| {
 8429                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8430                })
 8431                .when(!(tiling.top || tiling.left), |div| {
 8432                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8433                })
 8434                .when(!(tiling.bottom || tiling.right), |div| {
 8435                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8436                })
 8437                .when(!(tiling.bottom || tiling.left), |div| {
 8438                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8439                })
 8440                .when(!tiling.top, |div| {
 8441                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8442                })
 8443                .when(!tiling.bottom, |div| {
 8444                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8445                })
 8446                .when(!tiling.left, |div| {
 8447                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8448                })
 8449                .when(!tiling.right, |div| {
 8450                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8451                })
 8452                .on_mouse_move(move |e, window, cx| {
 8453                    let size = window.window_bounds().get_bounds().size;
 8454                    let pos = e.position;
 8455
 8456                    let new_edge =
 8457                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8458
 8459                    let edge = cx.try_global::<GlobalResizeEdge>();
 8460                    if new_edge != edge.map(|edge| edge.0) {
 8461                        window
 8462                            .window_handle()
 8463                            .update(cx, |workspace, _, cx| {
 8464                                cx.notify(workspace.entity_id());
 8465                            })
 8466                            .ok();
 8467                    }
 8468                })
 8469                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8470                    let size = window.window_bounds().get_bounds().size;
 8471                    let pos = e.position;
 8472
 8473                    let edge = match resize_edge(
 8474                        pos,
 8475                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8476                        size,
 8477                        tiling,
 8478                    ) {
 8479                        Some(value) => value,
 8480                        None => return,
 8481                    };
 8482
 8483                    window.start_window_resize(edge);
 8484                }),
 8485        })
 8486        .size_full()
 8487        .child(
 8488            div()
 8489                .cursor(CursorStyle::Arrow)
 8490                .map(|div| match decorations {
 8491                    Decorations::Server => div,
 8492                    Decorations::Client { tiling } => div
 8493                        .border_color(cx.theme().colors().border)
 8494                        .when(!(tiling.top || tiling.right), |div| {
 8495                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8496                        })
 8497                        .when(!(tiling.top || tiling.left), |div| {
 8498                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8499                        })
 8500                        .when(!(tiling.bottom || tiling.right), |div| {
 8501                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8502                        })
 8503                        .when(!(tiling.bottom || tiling.left), |div| {
 8504                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8505                        })
 8506                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8507                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8508                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8509                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8510                        .when(!tiling.is_tiled(), |div| {
 8511                            div.shadow(vec![gpui::BoxShadow {
 8512                                color: Hsla {
 8513                                    h: 0.,
 8514                                    s: 0.,
 8515                                    l: 0.,
 8516                                    a: 0.4,
 8517                                },
 8518                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8519                                spread_radius: px(0.),
 8520                                offset: point(px(0.0), px(0.0)),
 8521                            }])
 8522                        }),
 8523                })
 8524                .on_mouse_move(|_e, _, cx| {
 8525                    cx.stop_propagation();
 8526                })
 8527                .size_full()
 8528                .child(element),
 8529        )
 8530        .map(|div| match decorations {
 8531            Decorations::Server => div,
 8532            Decorations::Client { tiling, .. } => div.child(
 8533                canvas(
 8534                    |_bounds, window, _| {
 8535                        window.insert_hitbox(
 8536                            Bounds::new(
 8537                                point(px(0.0), px(0.0)),
 8538                                window.window_bounds().get_bounds().size,
 8539                            ),
 8540                            HitboxBehavior::Normal,
 8541                        )
 8542                    },
 8543                    move |_bounds, hitbox, window, cx| {
 8544                        let mouse = window.mouse_position();
 8545                        let size = window.window_bounds().get_bounds().size;
 8546                        let Some(edge) =
 8547                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8548                        else {
 8549                            return;
 8550                        };
 8551                        cx.set_global(GlobalResizeEdge(edge));
 8552                        window.set_cursor_style(
 8553                            match edge {
 8554                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8555                                ResizeEdge::Left | ResizeEdge::Right => {
 8556                                    CursorStyle::ResizeLeftRight
 8557                                }
 8558                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8559                                    CursorStyle::ResizeUpLeftDownRight
 8560                                }
 8561                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8562                                    CursorStyle::ResizeUpRightDownLeft
 8563                                }
 8564                            },
 8565                            &hitbox,
 8566                        );
 8567                    },
 8568                )
 8569                .size_full()
 8570                .absolute(),
 8571            ),
 8572        })
 8573}
 8574
 8575fn resize_edge(
 8576    pos: Point<Pixels>,
 8577    shadow_size: Pixels,
 8578    window_size: Size<Pixels>,
 8579    tiling: Tiling,
 8580) -> Option<ResizeEdge> {
 8581    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8582    if bounds.contains(&pos) {
 8583        return None;
 8584    }
 8585
 8586    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8587    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8588    if !tiling.top && top_left_bounds.contains(&pos) {
 8589        return Some(ResizeEdge::TopLeft);
 8590    }
 8591
 8592    let top_right_bounds = Bounds::new(
 8593        Point::new(window_size.width - corner_size.width, px(0.)),
 8594        corner_size,
 8595    );
 8596    if !tiling.top && top_right_bounds.contains(&pos) {
 8597        return Some(ResizeEdge::TopRight);
 8598    }
 8599
 8600    let bottom_left_bounds = Bounds::new(
 8601        Point::new(px(0.), window_size.height - corner_size.height),
 8602        corner_size,
 8603    );
 8604    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8605        return Some(ResizeEdge::BottomLeft);
 8606    }
 8607
 8608    let bottom_right_bounds = Bounds::new(
 8609        Point::new(
 8610            window_size.width - corner_size.width,
 8611            window_size.height - corner_size.height,
 8612        ),
 8613        corner_size,
 8614    );
 8615    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8616        return Some(ResizeEdge::BottomRight);
 8617    }
 8618
 8619    if !tiling.top && pos.y < shadow_size {
 8620        Some(ResizeEdge::Top)
 8621    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8622        Some(ResizeEdge::Bottom)
 8623    } else if !tiling.left && pos.x < shadow_size {
 8624        Some(ResizeEdge::Left)
 8625    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8626        Some(ResizeEdge::Right)
 8627    } else {
 8628        None
 8629    }
 8630}
 8631
 8632fn join_pane_into_active(
 8633    active_pane: &Entity<Pane>,
 8634    pane: &Entity<Pane>,
 8635    window: &mut Window,
 8636    cx: &mut App,
 8637) {
 8638    if pane == active_pane {
 8639    } else if pane.read(cx).items_len() == 0 {
 8640        pane.update(cx, |_, cx| {
 8641            cx.emit(pane::Event::Remove {
 8642                focus_on_pane: None,
 8643            });
 8644        })
 8645    } else {
 8646        move_all_items(pane, active_pane, window, cx);
 8647    }
 8648}
 8649
 8650fn move_all_items(
 8651    from_pane: &Entity<Pane>,
 8652    to_pane: &Entity<Pane>,
 8653    window: &mut Window,
 8654    cx: &mut App,
 8655) {
 8656    let destination_is_different = from_pane != to_pane;
 8657    let mut moved_items = 0;
 8658    for (item_ix, item_handle) in from_pane
 8659        .read(cx)
 8660        .items()
 8661        .enumerate()
 8662        .map(|(ix, item)| (ix, item.clone()))
 8663        .collect::<Vec<_>>()
 8664    {
 8665        let ix = item_ix - moved_items;
 8666        if destination_is_different {
 8667            // Close item from previous pane
 8668            from_pane.update(cx, |source, cx| {
 8669                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8670            });
 8671            moved_items += 1;
 8672        }
 8673
 8674        // This automatically removes duplicate items in the pane
 8675        to_pane.update(cx, |destination, cx| {
 8676            destination.add_item(item_handle, true, true, None, window, cx);
 8677            window.focus(&destination.focus_handle(cx))
 8678        });
 8679    }
 8680}
 8681
 8682pub fn move_item(
 8683    source: &Entity<Pane>,
 8684    destination: &Entity<Pane>,
 8685    item_id_to_move: EntityId,
 8686    destination_index: usize,
 8687    activate: bool,
 8688    window: &mut Window,
 8689    cx: &mut App,
 8690) {
 8691    let Some((item_ix, item_handle)) = source
 8692        .read(cx)
 8693        .items()
 8694        .enumerate()
 8695        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8696        .map(|(ix, item)| (ix, item.clone()))
 8697    else {
 8698        // Tab was closed during drag
 8699        return;
 8700    };
 8701
 8702    if source != destination {
 8703        // Close item from previous pane
 8704        source.update(cx, |source, cx| {
 8705            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8706        });
 8707    }
 8708
 8709    // This automatically removes duplicate items in the pane
 8710    destination.update(cx, |destination, cx| {
 8711        destination.add_item_inner(
 8712            item_handle,
 8713            activate,
 8714            activate,
 8715            activate,
 8716            Some(destination_index),
 8717            window,
 8718            cx,
 8719        );
 8720        if activate {
 8721            window.focus(&destination.focus_handle(cx))
 8722        }
 8723    });
 8724}
 8725
 8726pub fn move_active_item(
 8727    source: &Entity<Pane>,
 8728    destination: &Entity<Pane>,
 8729    focus_destination: bool,
 8730    close_if_empty: bool,
 8731    window: &mut Window,
 8732    cx: &mut App,
 8733) {
 8734    if source == destination {
 8735        return;
 8736    }
 8737    let Some(active_item) = source.read(cx).active_item() else {
 8738        return;
 8739    };
 8740    source.update(cx, |source_pane, cx| {
 8741        let item_id = active_item.item_id();
 8742        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8743        destination.update(cx, |target_pane, cx| {
 8744            target_pane.add_item(
 8745                active_item,
 8746                focus_destination,
 8747                focus_destination,
 8748                Some(target_pane.items_len()),
 8749                window,
 8750                cx,
 8751            );
 8752        });
 8753    });
 8754}
 8755
 8756pub fn clone_active_item(
 8757    workspace_id: Option<WorkspaceId>,
 8758    source: &Entity<Pane>,
 8759    destination: &Entity<Pane>,
 8760    focus_destination: bool,
 8761    window: &mut Window,
 8762    cx: &mut App,
 8763) {
 8764    if source == destination {
 8765        return;
 8766    }
 8767    let Some(active_item) = source.read(cx).active_item() else {
 8768        return;
 8769    };
 8770    if !active_item.can_split(cx) {
 8771        return;
 8772    }
 8773    let destination = destination.downgrade();
 8774    let task = active_item.clone_on_split(workspace_id, window, cx);
 8775    window
 8776        .spawn(cx, async move |cx| {
 8777            let Some(clone) = task.await else {
 8778                return;
 8779            };
 8780            destination
 8781                .update_in(cx, |target_pane, window, cx| {
 8782                    target_pane.add_item(
 8783                        clone,
 8784                        focus_destination,
 8785                        focus_destination,
 8786                        Some(target_pane.items_len()),
 8787                        window,
 8788                        cx,
 8789                    );
 8790                })
 8791                .log_err();
 8792        })
 8793        .detach();
 8794}
 8795
 8796#[derive(Debug)]
 8797pub struct WorkspacePosition {
 8798    pub window_bounds: Option<WindowBounds>,
 8799    pub display: Option<Uuid>,
 8800    pub centered_layout: bool,
 8801}
 8802
 8803pub fn remote_workspace_position_from_db(
 8804    connection_options: RemoteConnectionOptions,
 8805    paths_to_open: &[PathBuf],
 8806    cx: &App,
 8807) -> Task<Result<WorkspacePosition>> {
 8808    let paths = paths_to_open.to_vec();
 8809
 8810    cx.background_spawn(async move {
 8811        let remote_connection_id = persistence::DB
 8812            .get_or_create_remote_connection(connection_options)
 8813            .await
 8814            .context("fetching serialized ssh project")?;
 8815        let serialized_workspace =
 8816            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8817
 8818        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8819            (Some(WindowBounds::Windowed(bounds)), None)
 8820        } else {
 8821            let restorable_bounds = serialized_workspace
 8822                .as_ref()
 8823                .and_then(|workspace| Some((workspace.display?, workspace.window_bounds?)))
 8824                .or_else(|| {
 8825                    let (display, window_bounds) = DB.last_window().log_err()?;
 8826                    Some((display?, window_bounds?))
 8827                });
 8828
 8829            if let Some((serialized_display, serialized_status)) = restorable_bounds {
 8830                (Some(serialized_status.0), Some(serialized_display))
 8831            } else {
 8832                (None, None)
 8833            }
 8834        };
 8835
 8836        let centered_layout = serialized_workspace
 8837            .as_ref()
 8838            .map(|w| w.centered_layout)
 8839            .unwrap_or(false);
 8840
 8841        Ok(WorkspacePosition {
 8842            window_bounds,
 8843            display,
 8844            centered_layout,
 8845        })
 8846    })
 8847}
 8848
 8849pub fn with_active_or_new_workspace(
 8850    cx: &mut App,
 8851    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8852) {
 8853    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8854        Some(workspace) => {
 8855            cx.defer(move |cx| {
 8856                workspace
 8857                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8858                    .log_err();
 8859            });
 8860        }
 8861        None => {
 8862            let app_state = AppState::global(cx);
 8863            if let Some(app_state) = app_state.upgrade() {
 8864                open_new(
 8865                    OpenOptions::default(),
 8866                    app_state,
 8867                    cx,
 8868                    move |workspace, window, cx| f(workspace, window, cx),
 8869                )
 8870                .detach_and_log_err(cx);
 8871            }
 8872        }
 8873    }
 8874}
 8875
 8876#[cfg(test)]
 8877mod tests {
 8878    use std::{cell::RefCell, rc::Rc};
 8879
 8880    use super::*;
 8881    use crate::{
 8882        dock::{PanelEvent, test::TestPanel},
 8883        item::{
 8884            ItemBufferKind, ItemEvent,
 8885            test::{TestItem, TestProjectItem},
 8886        },
 8887    };
 8888    use fs::FakeFs;
 8889    use gpui::{
 8890        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 8891        UpdateGlobal, VisualTestContext, px,
 8892    };
 8893    use project::{Project, ProjectEntryId};
 8894    use serde_json::json;
 8895    use settings::SettingsStore;
 8896    use util::rel_path::rel_path;
 8897
 8898    #[gpui::test]
 8899    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 8900        init_test(cx);
 8901
 8902        let fs = FakeFs::new(cx.executor());
 8903        let project = Project::test(fs, [], cx).await;
 8904        let (workspace, cx) =
 8905            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8906
 8907        // Adding an item with no ambiguity renders the tab without detail.
 8908        let item1 = cx.new(|cx| {
 8909            let mut item = TestItem::new(cx);
 8910            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 8911            item
 8912        });
 8913        workspace.update_in(cx, |workspace, window, cx| {
 8914            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 8915        });
 8916        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 8917
 8918        // Adding an item that creates ambiguity increases the level of detail on
 8919        // both tabs.
 8920        let item2 = cx.new_window_entity(|_window, cx| {
 8921            let mut item = TestItem::new(cx);
 8922            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8923            item
 8924        });
 8925        workspace.update_in(cx, |workspace, window, cx| {
 8926            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 8927        });
 8928        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8929        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8930
 8931        // Adding an item that creates ambiguity increases the level of detail only
 8932        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 8933        // we stop at the highest detail available.
 8934        let item3 = cx.new(|cx| {
 8935            let mut item = TestItem::new(cx);
 8936            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 8937            item
 8938        });
 8939        workspace.update_in(cx, |workspace, window, cx| {
 8940            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 8941        });
 8942        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 8943        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8944        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 8945    }
 8946
 8947    #[gpui::test]
 8948    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 8949        init_test(cx);
 8950
 8951        let fs = FakeFs::new(cx.executor());
 8952        fs.insert_tree(
 8953            "/root1",
 8954            json!({
 8955                "one.txt": "",
 8956                "two.txt": "",
 8957            }),
 8958        )
 8959        .await;
 8960        fs.insert_tree(
 8961            "/root2",
 8962            json!({
 8963                "three.txt": "",
 8964            }),
 8965        )
 8966        .await;
 8967
 8968        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 8969        let (workspace, cx) =
 8970            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 8971        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 8972        let worktree_id = project.update(cx, |project, cx| {
 8973            project.worktrees(cx).next().unwrap().read(cx).id()
 8974        });
 8975
 8976        let item1 = cx.new(|cx| {
 8977            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 8978        });
 8979        let item2 = cx.new(|cx| {
 8980            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 8981        });
 8982
 8983        // Add an item to an empty pane
 8984        workspace.update_in(cx, |workspace, window, cx| {
 8985            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 8986        });
 8987        project.update(cx, |project, cx| {
 8988            assert_eq!(
 8989                project.active_entry(),
 8990                project
 8991                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 8992                    .map(|e| e.id)
 8993            );
 8994        });
 8995        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 8996
 8997        // Add a second item to a non-empty pane
 8998        workspace.update_in(cx, |workspace, window, cx| {
 8999            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9000        });
 9001        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9002        project.update(cx, |project, cx| {
 9003            assert_eq!(
 9004                project.active_entry(),
 9005                project
 9006                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9007                    .map(|e| e.id)
 9008            );
 9009        });
 9010
 9011        // Close the active item
 9012        pane.update_in(cx, |pane, window, cx| {
 9013            pane.close_active_item(&Default::default(), window, cx)
 9014        })
 9015        .await
 9016        .unwrap();
 9017        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9018        project.update(cx, |project, cx| {
 9019            assert_eq!(
 9020                project.active_entry(),
 9021                project
 9022                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9023                    .map(|e| e.id)
 9024            );
 9025        });
 9026
 9027        // Add a project folder
 9028        project
 9029            .update(cx, |project, cx| {
 9030                project.find_or_create_worktree("root2", true, cx)
 9031            })
 9032            .await
 9033            .unwrap();
 9034        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9035
 9036        // Remove a project folder
 9037        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9038        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9039    }
 9040
 9041    #[gpui::test]
 9042    async fn test_close_window(cx: &mut TestAppContext) {
 9043        init_test(cx);
 9044
 9045        let fs = FakeFs::new(cx.executor());
 9046        fs.insert_tree("/root", json!({ "one": "" })).await;
 9047
 9048        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9049        let (workspace, cx) =
 9050            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9051
 9052        // When there are no dirty items, there's nothing to do.
 9053        let item1 = cx.new(TestItem::new);
 9054        workspace.update_in(cx, |w, window, cx| {
 9055            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9056        });
 9057        let task = workspace.update_in(cx, |w, window, cx| {
 9058            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9059        });
 9060        assert!(task.await.unwrap());
 9061
 9062        // When there are dirty untitled items, prompt to save each one. If the user
 9063        // cancels any prompt, then abort.
 9064        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9065        let item3 = cx.new(|cx| {
 9066            TestItem::new(cx)
 9067                .with_dirty(true)
 9068                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9069        });
 9070        workspace.update_in(cx, |w, window, cx| {
 9071            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9072            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9073        });
 9074        let task = workspace.update_in(cx, |w, window, cx| {
 9075            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9076        });
 9077        cx.executor().run_until_parked();
 9078        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9079        cx.executor().run_until_parked();
 9080        assert!(!cx.has_pending_prompt());
 9081        assert!(!task.await.unwrap());
 9082    }
 9083
 9084    #[gpui::test]
 9085    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9086        init_test(cx);
 9087
 9088        // Register TestItem as a serializable item
 9089        cx.update(|cx| {
 9090            register_serializable_item::<TestItem>(cx);
 9091        });
 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 dirty untitled items, but they can serialize, then there is no prompt.
 9101        let item1 = cx.new(|cx| {
 9102            TestItem::new(cx)
 9103                .with_dirty(true)
 9104                .with_serialize(|| Some(Task::ready(Ok(()))))
 9105        });
 9106        let item2 = cx.new(|cx| {
 9107            TestItem::new(cx)
 9108                .with_dirty(true)
 9109                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9110                .with_serialize(|| Some(Task::ready(Ok(()))))
 9111        });
 9112        workspace.update_in(cx, |w, window, cx| {
 9113            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9114            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9115        });
 9116        let task = workspace.update_in(cx, |w, window, cx| {
 9117            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9118        });
 9119        assert!(task.await.unwrap());
 9120    }
 9121
 9122    #[gpui::test]
 9123    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9124        init_test(cx);
 9125
 9126        let fs = FakeFs::new(cx.executor());
 9127
 9128        let project = Project::test(fs, None, cx).await;
 9129        let (workspace, cx) =
 9130            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9131
 9132        let item1 = cx.new(|cx| {
 9133            TestItem::new(cx)
 9134                .with_dirty(true)
 9135                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9136        });
 9137        let item2 = cx.new(|cx| {
 9138            TestItem::new(cx)
 9139                .with_dirty(true)
 9140                .with_conflict(true)
 9141                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9142        });
 9143        let item3 = cx.new(|cx| {
 9144            TestItem::new(cx)
 9145                .with_dirty(true)
 9146                .with_conflict(true)
 9147                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9148        });
 9149        let item4 = cx.new(|cx| {
 9150            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9151                let project_item = TestProjectItem::new_untitled(cx);
 9152                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9153                project_item
 9154            }])
 9155        });
 9156        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9157            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9158            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9159            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9160            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9161            workspace.active_pane().clone()
 9162        });
 9163
 9164        let close_items = pane.update_in(cx, |pane, window, cx| {
 9165            pane.activate_item(1, true, true, window, cx);
 9166            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9167            let item1_id = item1.item_id();
 9168            let item3_id = item3.item_id();
 9169            let item4_id = item4.item_id();
 9170            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9171                [item1_id, item3_id, item4_id].contains(&id)
 9172            })
 9173        });
 9174        cx.executor().run_until_parked();
 9175
 9176        assert!(cx.has_pending_prompt());
 9177        cx.simulate_prompt_answer("Save all");
 9178
 9179        cx.executor().run_until_parked();
 9180
 9181        // Item 1 is saved. There's a prompt to save item 3.
 9182        pane.update(cx, |pane, cx| {
 9183            assert_eq!(item1.read(cx).save_count, 1);
 9184            assert_eq!(item1.read(cx).save_as_count, 0);
 9185            assert_eq!(item1.read(cx).reload_count, 0);
 9186            assert_eq!(pane.items_len(), 3);
 9187            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9188        });
 9189        assert!(cx.has_pending_prompt());
 9190
 9191        // Cancel saving item 3.
 9192        cx.simulate_prompt_answer("Discard");
 9193        cx.executor().run_until_parked();
 9194
 9195        // Item 3 is reloaded. There's a prompt to save item 4.
 9196        pane.update(cx, |pane, cx| {
 9197            assert_eq!(item3.read(cx).save_count, 0);
 9198            assert_eq!(item3.read(cx).save_as_count, 0);
 9199            assert_eq!(item3.read(cx).reload_count, 1);
 9200            assert_eq!(pane.items_len(), 2);
 9201            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9202        });
 9203
 9204        // There's a prompt for a path for item 4.
 9205        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9206        close_items.await.unwrap();
 9207
 9208        // The requested items are closed.
 9209        pane.update(cx, |pane, cx| {
 9210            assert_eq!(item4.read(cx).save_count, 0);
 9211            assert_eq!(item4.read(cx).save_as_count, 1);
 9212            assert_eq!(item4.read(cx).reload_count, 0);
 9213            assert_eq!(pane.items_len(), 1);
 9214            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9215        });
 9216    }
 9217
 9218    #[gpui::test]
 9219    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9220        init_test(cx);
 9221
 9222        let fs = FakeFs::new(cx.executor());
 9223        let project = Project::test(fs, [], cx).await;
 9224        let (workspace, cx) =
 9225            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9226
 9227        // Create several workspace items with single project entries, and two
 9228        // workspace items with multiple project entries.
 9229        let single_entry_items = (0..=4)
 9230            .map(|project_entry_id| {
 9231                cx.new(|cx| {
 9232                    TestItem::new(cx)
 9233                        .with_dirty(true)
 9234                        .with_project_items(&[dirty_project_item(
 9235                            project_entry_id,
 9236                            &format!("{project_entry_id}.txt"),
 9237                            cx,
 9238                        )])
 9239                })
 9240            })
 9241            .collect::<Vec<_>>();
 9242        let item_2_3 = cx.new(|cx| {
 9243            TestItem::new(cx)
 9244                .with_dirty(true)
 9245                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9246                .with_project_items(&[
 9247                    single_entry_items[2].read(cx).project_items[0].clone(),
 9248                    single_entry_items[3].read(cx).project_items[0].clone(),
 9249                ])
 9250        });
 9251        let item_3_4 = cx.new(|cx| {
 9252            TestItem::new(cx)
 9253                .with_dirty(true)
 9254                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9255                .with_project_items(&[
 9256                    single_entry_items[3].read(cx).project_items[0].clone(),
 9257                    single_entry_items[4].read(cx).project_items[0].clone(),
 9258                ])
 9259        });
 9260
 9261        // Create two panes that contain the following project entries:
 9262        //   left pane:
 9263        //     multi-entry items:   (2, 3)
 9264        //     single-entry items:  0, 2, 3, 4
 9265        //   right pane:
 9266        //     single-entry items:  4, 1
 9267        //     multi-entry items:   (3, 4)
 9268        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9269            let left_pane = workspace.active_pane().clone();
 9270            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9271            workspace.add_item_to_active_pane(
 9272                single_entry_items[0].boxed_clone(),
 9273                None,
 9274                true,
 9275                window,
 9276                cx,
 9277            );
 9278            workspace.add_item_to_active_pane(
 9279                single_entry_items[2].boxed_clone(),
 9280                None,
 9281                true,
 9282                window,
 9283                cx,
 9284            );
 9285            workspace.add_item_to_active_pane(
 9286                single_entry_items[3].boxed_clone(),
 9287                None,
 9288                true,
 9289                window,
 9290                cx,
 9291            );
 9292            workspace.add_item_to_active_pane(
 9293                single_entry_items[4].boxed_clone(),
 9294                None,
 9295                true,
 9296                window,
 9297                cx,
 9298            );
 9299
 9300            let right_pane =
 9301                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9302
 9303            let boxed_clone = single_entry_items[1].boxed_clone();
 9304            let right_pane = window.spawn(cx, async move |cx| {
 9305                right_pane.await.inspect(|right_pane| {
 9306                    right_pane
 9307                        .update_in(cx, |pane, window, cx| {
 9308                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9309                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9310                        })
 9311                        .unwrap();
 9312                })
 9313            });
 9314
 9315            (left_pane, right_pane)
 9316        });
 9317        let right_pane = right_pane.await.unwrap();
 9318        cx.focus(&right_pane);
 9319
 9320        let mut close = right_pane.update_in(cx, |pane, window, cx| {
 9321            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9322                .unwrap()
 9323        });
 9324        cx.executor().run_until_parked();
 9325
 9326        let msg = cx.pending_prompt().unwrap().0;
 9327        assert!(msg.contains("1.txt"));
 9328        assert!(!msg.contains("2.txt"));
 9329        assert!(!msg.contains("3.txt"));
 9330        assert!(!msg.contains("4.txt"));
 9331
 9332        cx.simulate_prompt_answer("Cancel");
 9333        close.await;
 9334
 9335        left_pane
 9336            .update_in(cx, |left_pane, window, cx| {
 9337                left_pane.close_item_by_id(
 9338                    single_entry_items[3].entity_id(),
 9339                    SaveIntent::Skip,
 9340                    window,
 9341                    cx,
 9342                )
 9343            })
 9344            .await
 9345            .unwrap();
 9346
 9347        close = right_pane.update_in(cx, |pane, window, cx| {
 9348            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9349                .unwrap()
 9350        });
 9351        cx.executor().run_until_parked();
 9352
 9353        let details = cx.pending_prompt().unwrap().1;
 9354        assert!(details.contains("1.txt"));
 9355        assert!(!details.contains("2.txt"));
 9356        assert!(details.contains("3.txt"));
 9357        // ideally this assertion could be made, but today we can only
 9358        // save whole items not project items, so the orphaned item 3 causes
 9359        // 4 to be saved too.
 9360        // assert!(!details.contains("4.txt"));
 9361
 9362        cx.simulate_prompt_answer("Save all");
 9363
 9364        cx.executor().run_until_parked();
 9365        close.await;
 9366        right_pane.read_with(cx, |pane, _| {
 9367            assert_eq!(pane.items_len(), 0);
 9368        });
 9369    }
 9370
 9371    #[gpui::test]
 9372    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9373        init_test(cx);
 9374
 9375        let fs = FakeFs::new(cx.executor());
 9376        let project = Project::test(fs, [], cx).await;
 9377        let (workspace, cx) =
 9378            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9379        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9380
 9381        let item = cx.new(|cx| {
 9382            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9383        });
 9384        let item_id = item.entity_id();
 9385        workspace.update_in(cx, |workspace, window, cx| {
 9386            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9387        });
 9388
 9389        // Autosave on window change.
 9390        item.update(cx, |item, cx| {
 9391            SettingsStore::update_global(cx, |settings, cx| {
 9392                settings.update_user_settings(cx, |settings| {
 9393                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9394                })
 9395            });
 9396            item.is_dirty = true;
 9397        });
 9398
 9399        // Deactivating the window saves the file.
 9400        cx.deactivate_window();
 9401        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9402
 9403        // Re-activating the window doesn't save the file.
 9404        cx.update(|window, _| window.activate_window());
 9405        cx.executor().run_until_parked();
 9406        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9407
 9408        // Autosave on focus change.
 9409        item.update_in(cx, |item, window, cx| {
 9410            cx.focus_self(window);
 9411            SettingsStore::update_global(cx, |settings, cx| {
 9412                settings.update_user_settings(cx, |settings| {
 9413                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9414                })
 9415            });
 9416            item.is_dirty = true;
 9417        });
 9418        // Blurring the item saves the file.
 9419        item.update_in(cx, |_, window, _| window.blur());
 9420        cx.executor().run_until_parked();
 9421        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9422
 9423        // Deactivating the window still saves the file.
 9424        item.update_in(cx, |item, window, cx| {
 9425            cx.focus_self(window);
 9426            item.is_dirty = true;
 9427        });
 9428        cx.deactivate_window();
 9429        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9430
 9431        // Autosave after delay.
 9432        item.update(cx, |item, cx| {
 9433            SettingsStore::update_global(cx, |settings, cx| {
 9434                settings.update_user_settings(cx, |settings| {
 9435                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9436                        milliseconds: 500.into(),
 9437                    });
 9438                })
 9439            });
 9440            item.is_dirty = true;
 9441            cx.emit(ItemEvent::Edit);
 9442        });
 9443
 9444        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9445        cx.executor().advance_clock(Duration::from_millis(250));
 9446        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9447
 9448        // After delay expires, the file is saved.
 9449        cx.executor().advance_clock(Duration::from_millis(250));
 9450        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9451
 9452        // Autosave after delay, should save earlier than delay if tab is closed
 9453        item.update(cx, |item, cx| {
 9454            item.is_dirty = true;
 9455            cx.emit(ItemEvent::Edit);
 9456        });
 9457        cx.executor().advance_clock(Duration::from_millis(250));
 9458        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9459
 9460        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9461        pane.update_in(cx, |pane, window, cx| {
 9462            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9463        })
 9464        .await
 9465        .unwrap();
 9466        assert!(!cx.has_pending_prompt());
 9467        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9468
 9469        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9470        workspace.update_in(cx, |workspace, window, cx| {
 9471            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9472        });
 9473        item.update_in(cx, |item, _window, cx| {
 9474            item.is_dirty = true;
 9475            for project_item in &mut item.project_items {
 9476                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9477            }
 9478        });
 9479        cx.run_until_parked();
 9480        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9481
 9482        // Autosave on focus change, ensuring closing the tab counts as such.
 9483        item.update(cx, |item, cx| {
 9484            SettingsStore::update_global(cx, |settings, cx| {
 9485                settings.update_user_settings(cx, |settings| {
 9486                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9487                })
 9488            });
 9489            item.is_dirty = true;
 9490            for project_item in &mut item.project_items {
 9491                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9492            }
 9493        });
 9494
 9495        pane.update_in(cx, |pane, window, cx| {
 9496            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9497        })
 9498        .await
 9499        .unwrap();
 9500        assert!(!cx.has_pending_prompt());
 9501        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9502
 9503        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9504        workspace.update_in(cx, |workspace, window, cx| {
 9505            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9506        });
 9507        item.update_in(cx, |item, window, cx| {
 9508            item.project_items[0].update(cx, |item, _| {
 9509                item.entry_id = None;
 9510            });
 9511            item.is_dirty = true;
 9512            window.blur();
 9513        });
 9514        cx.run_until_parked();
 9515        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9516
 9517        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9518        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9519            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9520        });
 9521        cx.run_until_parked();
 9522        assert!(cx.has_pending_prompt());
 9523        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9524    }
 9525
 9526    #[gpui::test]
 9527    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9528        init_test(cx);
 9529
 9530        let fs = FakeFs::new(cx.executor());
 9531
 9532        let project = Project::test(fs, [], cx).await;
 9533        let (workspace, cx) =
 9534            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9535
 9536        let item = cx.new(|cx| {
 9537            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9538        });
 9539        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9540        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9541        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9542
 9543        workspace.update_in(cx, |workspace, window, cx| {
 9544            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9545            let toolbar_notification_count = toolbar_notify_count.clone();
 9546            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9547                *toolbar_notification_count.borrow_mut() += 1
 9548            })
 9549            .detach();
 9550        });
 9551
 9552        pane.read_with(cx, |pane, _| {
 9553            assert!(!pane.can_navigate_backward());
 9554            assert!(!pane.can_navigate_forward());
 9555        });
 9556
 9557        item.update_in(cx, |item, _, cx| {
 9558            item.set_state("one".to_string(), cx);
 9559        });
 9560
 9561        // Toolbar must be notified to re-render the navigation buttons
 9562        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9563
 9564        pane.read_with(cx, |pane, _| {
 9565            assert!(pane.can_navigate_backward());
 9566            assert!(!pane.can_navigate_forward());
 9567        });
 9568
 9569        workspace
 9570            .update_in(cx, |workspace, window, cx| {
 9571                workspace.go_back(pane.downgrade(), window, cx)
 9572            })
 9573            .await
 9574            .unwrap();
 9575
 9576        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9577        pane.read_with(cx, |pane, _| {
 9578            assert!(!pane.can_navigate_backward());
 9579            assert!(pane.can_navigate_forward());
 9580        });
 9581    }
 9582
 9583    #[gpui::test]
 9584    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9585        init_test(cx);
 9586        let fs = FakeFs::new(cx.executor());
 9587
 9588        let project = Project::test(fs, [], cx).await;
 9589        let (workspace, cx) =
 9590            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9591
 9592        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9593            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9594            workspace.add_panel(panel.clone(), window, cx);
 9595
 9596            workspace
 9597                .right_dock()
 9598                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9599
 9600            panel
 9601        });
 9602
 9603        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9604        pane.update_in(cx, |pane, window, cx| {
 9605            let item = cx.new(TestItem::new);
 9606            pane.add_item(Box::new(item), true, true, None, window, cx);
 9607        });
 9608
 9609        // Transfer focus from center to panel
 9610        workspace.update_in(cx, |workspace, window, cx| {
 9611            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9612        });
 9613
 9614        workspace.update_in(cx, |workspace, window, cx| {
 9615            assert!(workspace.right_dock().read(cx).is_open());
 9616            assert!(!panel.is_zoomed(window, cx));
 9617            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9618        });
 9619
 9620        // Transfer focus from panel to center
 9621        workspace.update_in(cx, |workspace, window, cx| {
 9622            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9623        });
 9624
 9625        workspace.update_in(cx, |workspace, window, cx| {
 9626            assert!(workspace.right_dock().read(cx).is_open());
 9627            assert!(!panel.is_zoomed(window, cx));
 9628            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9629        });
 9630
 9631        // Close the dock
 9632        workspace.update_in(cx, |workspace, window, cx| {
 9633            workspace.toggle_dock(DockPosition::Right, window, cx);
 9634        });
 9635
 9636        workspace.update_in(cx, |workspace, window, cx| {
 9637            assert!(!workspace.right_dock().read(cx).is_open());
 9638            assert!(!panel.is_zoomed(window, cx));
 9639            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9640        });
 9641
 9642        // Open the dock
 9643        workspace.update_in(cx, |workspace, window, cx| {
 9644            workspace.toggle_dock(DockPosition::Right, window, cx);
 9645        });
 9646
 9647        workspace.update_in(cx, |workspace, window, cx| {
 9648            assert!(workspace.right_dock().read(cx).is_open());
 9649            assert!(!panel.is_zoomed(window, cx));
 9650            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9651        });
 9652
 9653        // Focus and zoom panel
 9654        panel.update_in(cx, |panel, window, cx| {
 9655            cx.focus_self(window);
 9656            panel.set_zoomed(true, window, cx)
 9657        });
 9658
 9659        workspace.update_in(cx, |workspace, window, cx| {
 9660            assert!(workspace.right_dock().read(cx).is_open());
 9661            assert!(panel.is_zoomed(window, cx));
 9662            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9663        });
 9664
 9665        // Transfer focus to the center closes the dock
 9666        workspace.update_in(cx, |workspace, window, cx| {
 9667            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9668        });
 9669
 9670        workspace.update_in(cx, |workspace, window, cx| {
 9671            assert!(!workspace.right_dock().read(cx).is_open());
 9672            assert!(panel.is_zoomed(window, cx));
 9673            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9674        });
 9675
 9676        // Transferring focus back to the panel keeps it zoomed
 9677        workspace.update_in(cx, |workspace, window, cx| {
 9678            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9679        });
 9680
 9681        workspace.update_in(cx, |workspace, window, cx| {
 9682            assert!(workspace.right_dock().read(cx).is_open());
 9683            assert!(panel.is_zoomed(window, cx));
 9684            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9685        });
 9686
 9687        // Close the dock while it is zoomed
 9688        workspace.update_in(cx, |workspace, window, cx| {
 9689            workspace.toggle_dock(DockPosition::Right, window, cx)
 9690        });
 9691
 9692        workspace.update_in(cx, |workspace, window, cx| {
 9693            assert!(!workspace.right_dock().read(cx).is_open());
 9694            assert!(panel.is_zoomed(window, cx));
 9695            assert!(workspace.zoomed.is_none());
 9696            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9697        });
 9698
 9699        // Opening the dock, when it's zoomed, retains focus
 9700        workspace.update_in(cx, |workspace, window, cx| {
 9701            workspace.toggle_dock(DockPosition::Right, window, cx)
 9702        });
 9703
 9704        workspace.update_in(cx, |workspace, window, cx| {
 9705            assert!(workspace.right_dock().read(cx).is_open());
 9706            assert!(panel.is_zoomed(window, cx));
 9707            assert!(workspace.zoomed.is_some());
 9708            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9709        });
 9710
 9711        // Unzoom and close the panel, zoom the active pane.
 9712        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9713        workspace.update_in(cx, |workspace, window, cx| {
 9714            workspace.toggle_dock(DockPosition::Right, window, cx)
 9715        });
 9716        pane.update_in(cx, |pane, window, cx| {
 9717            pane.toggle_zoom(&Default::default(), window, cx)
 9718        });
 9719
 9720        // Opening a dock unzooms the pane.
 9721        workspace.update_in(cx, |workspace, window, cx| {
 9722            workspace.toggle_dock(DockPosition::Right, window, cx)
 9723        });
 9724        workspace.update_in(cx, |workspace, window, cx| {
 9725            let pane = pane.read(cx);
 9726            assert!(!pane.is_zoomed());
 9727            assert!(!pane.focus_handle(cx).is_focused(window));
 9728            assert!(workspace.right_dock().read(cx).is_open());
 9729            assert!(workspace.zoomed.is_none());
 9730        });
 9731    }
 9732
 9733    #[gpui::test]
 9734    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9735        init_test(cx);
 9736        let fs = FakeFs::new(cx.executor());
 9737
 9738        let project = Project::test(fs, [], cx).await;
 9739        let (workspace, cx) =
 9740            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9741
 9742        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9743            workspace.active_pane().clone()
 9744        });
 9745
 9746        // Add an item to the pane so it can be zoomed
 9747        workspace.update_in(cx, |workspace, window, cx| {
 9748            let item = cx.new(TestItem::new);
 9749            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9750        });
 9751
 9752        // Initially not zoomed
 9753        workspace.update_in(cx, |workspace, _window, cx| {
 9754            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9755            assert!(
 9756                workspace.zoomed.is_none(),
 9757                "Workspace should track no zoomed pane"
 9758            );
 9759            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9760        });
 9761
 9762        // Zoom In
 9763        pane.update_in(cx, |pane, window, cx| {
 9764            pane.zoom_in(&crate::ZoomIn, window, cx);
 9765        });
 9766
 9767        workspace.update_in(cx, |workspace, window, cx| {
 9768            assert!(
 9769                pane.read(cx).is_zoomed(),
 9770                "Pane should be zoomed after ZoomIn"
 9771            );
 9772            assert!(
 9773                workspace.zoomed.is_some(),
 9774                "Workspace should track the zoomed pane"
 9775            );
 9776            assert!(
 9777                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9778                "ZoomIn should focus the pane"
 9779            );
 9780        });
 9781
 9782        // Zoom In again is a no-op
 9783        pane.update_in(cx, |pane, window, cx| {
 9784            pane.zoom_in(&crate::ZoomIn, window, cx);
 9785        });
 9786
 9787        workspace.update_in(cx, |workspace, window, cx| {
 9788            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9789            assert!(
 9790                workspace.zoomed.is_some(),
 9791                "Workspace still tracks zoomed pane"
 9792            );
 9793            assert!(
 9794                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9795                "Pane remains focused after repeated ZoomIn"
 9796            );
 9797        });
 9798
 9799        // Zoom Out
 9800        pane.update_in(cx, |pane, window, cx| {
 9801            pane.zoom_out(&crate::ZoomOut, window, cx);
 9802        });
 9803
 9804        workspace.update_in(cx, |workspace, _window, cx| {
 9805            assert!(
 9806                !pane.read(cx).is_zoomed(),
 9807                "Pane should unzoom after ZoomOut"
 9808            );
 9809            assert!(
 9810                workspace.zoomed.is_none(),
 9811                "Workspace clears zoom tracking after ZoomOut"
 9812            );
 9813        });
 9814
 9815        // Zoom Out again is a no-op
 9816        pane.update_in(cx, |pane, window, cx| {
 9817            pane.zoom_out(&crate::ZoomOut, window, cx);
 9818        });
 9819
 9820        workspace.update_in(cx, |workspace, _window, cx| {
 9821            assert!(
 9822                !pane.read(cx).is_zoomed(),
 9823                "Second ZoomOut keeps pane unzoomed"
 9824            );
 9825            assert!(
 9826                workspace.zoomed.is_none(),
 9827                "Workspace remains without zoomed pane"
 9828            );
 9829        });
 9830    }
 9831
 9832    #[gpui::test]
 9833    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9834        init_test(cx);
 9835        let fs = FakeFs::new(cx.executor());
 9836
 9837        let project = Project::test(fs, [], cx).await;
 9838        let (workspace, cx) =
 9839            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9840        workspace.update_in(cx, |workspace, window, cx| {
 9841            // Open two docks
 9842            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9843            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9844
 9845            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9846            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9847
 9848            assert!(left_dock.read(cx).is_open());
 9849            assert!(right_dock.read(cx).is_open());
 9850        });
 9851
 9852        workspace.update_in(cx, |workspace, window, cx| {
 9853            // Toggle all docks - should close both
 9854            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9855
 9856            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9857            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9858            assert!(!left_dock.read(cx).is_open());
 9859            assert!(!right_dock.read(cx).is_open());
 9860        });
 9861
 9862        workspace.update_in(cx, |workspace, window, cx| {
 9863            // Toggle again - should reopen both
 9864            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9865
 9866            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9867            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9868            assert!(left_dock.read(cx).is_open());
 9869            assert!(right_dock.read(cx).is_open());
 9870        });
 9871    }
 9872
 9873    #[gpui::test]
 9874    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9875        init_test(cx);
 9876        let fs = FakeFs::new(cx.executor());
 9877
 9878        let project = Project::test(fs, [], cx).await;
 9879        let (workspace, cx) =
 9880            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9881        workspace.update_in(cx, |workspace, window, cx| {
 9882            // Open two docks
 9883            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9884            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9885
 9886            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9887            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9888
 9889            assert!(left_dock.read(cx).is_open());
 9890            assert!(right_dock.read(cx).is_open());
 9891        });
 9892
 9893        workspace.update_in(cx, |workspace, window, cx| {
 9894            // Close them manually
 9895            workspace.toggle_dock(DockPosition::Left, window, cx);
 9896            workspace.toggle_dock(DockPosition::Right, window, cx);
 9897
 9898            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9899            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9900            assert!(!left_dock.read(cx).is_open());
 9901            assert!(!right_dock.read(cx).is_open());
 9902        });
 9903
 9904        workspace.update_in(cx, |workspace, window, cx| {
 9905            // Toggle all docks - only last closed (right dock) should reopen
 9906            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9907
 9908            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9909            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9910            assert!(!left_dock.read(cx).is_open());
 9911            assert!(right_dock.read(cx).is_open());
 9912        });
 9913    }
 9914
 9915    #[gpui::test]
 9916    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
 9917        init_test(cx);
 9918        let fs = FakeFs::new(cx.executor());
 9919        let project = Project::test(fs, [], cx).await;
 9920        let (workspace, cx) =
 9921            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9922
 9923        // Open two docks (left and right) with one panel each
 9924        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
 9925            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
 9926            workspace.add_panel(left_panel.clone(), window, cx);
 9927
 9928            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
 9929            workspace.add_panel(right_panel.clone(), window, cx);
 9930
 9931            workspace.toggle_dock(DockPosition::Left, window, cx);
 9932            workspace.toggle_dock(DockPosition::Right, window, cx);
 9933
 9934            // Verify initial state
 9935            assert!(
 9936                workspace.left_dock().read(cx).is_open(),
 9937                "Left dock should be open"
 9938            );
 9939            assert_eq!(
 9940                workspace
 9941                    .left_dock()
 9942                    .read(cx)
 9943                    .visible_panel()
 9944                    .unwrap()
 9945                    .panel_id(),
 9946                left_panel.panel_id(),
 9947                "Left panel should be visible in left dock"
 9948            );
 9949            assert!(
 9950                workspace.right_dock().read(cx).is_open(),
 9951                "Right dock should be open"
 9952            );
 9953            assert_eq!(
 9954                workspace
 9955                    .right_dock()
 9956                    .read(cx)
 9957                    .visible_panel()
 9958                    .unwrap()
 9959                    .panel_id(),
 9960                right_panel.panel_id(),
 9961                "Right panel should be visible in right dock"
 9962            );
 9963            assert!(
 9964                !workspace.bottom_dock().read(cx).is_open(),
 9965                "Bottom dock should be closed"
 9966            );
 9967
 9968            (left_panel, right_panel)
 9969        });
 9970
 9971        // Focus the left panel and move it to the next position (bottom dock)
 9972        workspace.update_in(cx, |workspace, window, cx| {
 9973            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
 9974            assert!(
 9975                left_panel.read(cx).focus_handle(cx).is_focused(window),
 9976                "Left panel should be focused"
 9977            );
 9978        });
 9979
 9980        cx.dispatch_action(MoveFocusedPanelToNextPosition);
 9981
 9982        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
 9983        workspace.update(cx, |workspace, cx| {
 9984            assert!(
 9985                !workspace.left_dock().read(cx).is_open(),
 9986                "Left dock should be closed"
 9987            );
 9988            assert!(
 9989                workspace.bottom_dock().read(cx).is_open(),
 9990                "Bottom dock should now be open"
 9991            );
 9992            assert_eq!(
 9993                left_panel.read(cx).position,
 9994                DockPosition::Bottom,
 9995                "Left panel should now be in the bottom dock"
 9996            );
 9997            assert_eq!(
 9998                workspace
 9999                    .bottom_dock()
10000                    .read(cx)
10001                    .visible_panel()
10002                    .unwrap()
10003                    .panel_id(),
10004                left_panel.panel_id(),
10005                "Left panel should be the visible panel in the bottom dock"
10006            );
10007        });
10008
10009        // Toggle all docks off
10010        workspace.update_in(cx, |workspace, window, cx| {
10011            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10012            assert!(
10013                !workspace.left_dock().read(cx).is_open(),
10014                "Left dock should be closed"
10015            );
10016            assert!(
10017                !workspace.right_dock().read(cx).is_open(),
10018                "Right dock should be closed"
10019            );
10020            assert!(
10021                !workspace.bottom_dock().read(cx).is_open(),
10022                "Bottom dock should be closed"
10023            );
10024        });
10025
10026        // Toggle all docks back on and verify positions are restored
10027        workspace.update_in(cx, |workspace, window, cx| {
10028            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10029            assert!(
10030                !workspace.left_dock().read(cx).is_open(),
10031                "Left dock should remain closed"
10032            );
10033            assert!(
10034                workspace.right_dock().read(cx).is_open(),
10035                "Right dock should remain open"
10036            );
10037            assert!(
10038                workspace.bottom_dock().read(cx).is_open(),
10039                "Bottom dock should remain open"
10040            );
10041            assert_eq!(
10042                left_panel.read(cx).position,
10043                DockPosition::Bottom,
10044                "Left panel should remain in the bottom dock"
10045            );
10046            assert_eq!(
10047                right_panel.read(cx).position,
10048                DockPosition::Right,
10049                "Right panel should remain in the right dock"
10050            );
10051            assert_eq!(
10052                workspace
10053                    .bottom_dock()
10054                    .read(cx)
10055                    .visible_panel()
10056                    .unwrap()
10057                    .panel_id(),
10058                left_panel.panel_id(),
10059                "Left panel should be the visible panel in the right dock"
10060            );
10061        });
10062    }
10063
10064    #[gpui::test]
10065    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10066        init_test(cx);
10067
10068        let fs = FakeFs::new(cx.executor());
10069
10070        let project = Project::test(fs, None, cx).await;
10071        let (workspace, cx) =
10072            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10073
10074        // Let's arrange the panes like this:
10075        //
10076        // +-----------------------+
10077        // |         top           |
10078        // +------+--------+-------+
10079        // | left | center | right |
10080        // +------+--------+-------+
10081        // |        bottom         |
10082        // +-----------------------+
10083
10084        let top_item = cx.new(|cx| {
10085            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10086        });
10087        let bottom_item = cx.new(|cx| {
10088            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10089        });
10090        let left_item = cx.new(|cx| {
10091            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10092        });
10093        let right_item = cx.new(|cx| {
10094            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10095        });
10096        let center_item = cx.new(|cx| {
10097            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10098        });
10099
10100        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10101            let top_pane_id = workspace.active_pane().entity_id();
10102            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10103            workspace.split_pane(
10104                workspace.active_pane().clone(),
10105                SplitDirection::Down,
10106                window,
10107                cx,
10108            );
10109            top_pane_id
10110        });
10111        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10112            let bottom_pane_id = workspace.active_pane().entity_id();
10113            workspace.add_item_to_active_pane(
10114                Box::new(bottom_item.clone()),
10115                None,
10116                false,
10117                window,
10118                cx,
10119            );
10120            workspace.split_pane(
10121                workspace.active_pane().clone(),
10122                SplitDirection::Up,
10123                window,
10124                cx,
10125            );
10126            bottom_pane_id
10127        });
10128        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10129            let left_pane_id = workspace.active_pane().entity_id();
10130            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10131            workspace.split_pane(
10132                workspace.active_pane().clone(),
10133                SplitDirection::Right,
10134                window,
10135                cx,
10136            );
10137            left_pane_id
10138        });
10139        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10140            let right_pane_id = workspace.active_pane().entity_id();
10141            workspace.add_item_to_active_pane(
10142                Box::new(right_item.clone()),
10143                None,
10144                false,
10145                window,
10146                cx,
10147            );
10148            workspace.split_pane(
10149                workspace.active_pane().clone(),
10150                SplitDirection::Left,
10151                window,
10152                cx,
10153            );
10154            right_pane_id
10155        });
10156        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10157            let center_pane_id = workspace.active_pane().entity_id();
10158            workspace.add_item_to_active_pane(
10159                Box::new(center_item.clone()),
10160                None,
10161                false,
10162                window,
10163                cx,
10164            );
10165            center_pane_id
10166        });
10167        cx.executor().run_until_parked();
10168
10169        workspace.update_in(cx, |workspace, window, cx| {
10170            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10171
10172            // Join into next from center pane into right
10173            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10174        });
10175
10176        workspace.update_in(cx, |workspace, window, cx| {
10177            let active_pane = workspace.active_pane();
10178            assert_eq!(right_pane_id, active_pane.entity_id());
10179            assert_eq!(2, active_pane.read(cx).items_len());
10180            let item_ids_in_pane =
10181                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10182            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10183            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10184
10185            // Join into next from right pane into bottom
10186            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10187        });
10188
10189        workspace.update_in(cx, |workspace, window, cx| {
10190            let active_pane = workspace.active_pane();
10191            assert_eq!(bottom_pane_id, active_pane.entity_id());
10192            assert_eq!(3, active_pane.read(cx).items_len());
10193            let item_ids_in_pane =
10194                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10195            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10196            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10197            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10198
10199            // Join into next from bottom pane into left
10200            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10201        });
10202
10203        workspace.update_in(cx, |workspace, window, cx| {
10204            let active_pane = workspace.active_pane();
10205            assert_eq!(left_pane_id, active_pane.entity_id());
10206            assert_eq!(4, active_pane.read(cx).items_len());
10207            let item_ids_in_pane =
10208                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10209            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10210            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10211            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10212            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10213
10214            // Join into next from left pane into top
10215            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10216        });
10217
10218        workspace.update_in(cx, |workspace, window, cx| {
10219            let active_pane = workspace.active_pane();
10220            assert_eq!(top_pane_id, active_pane.entity_id());
10221            assert_eq!(5, active_pane.read(cx).items_len());
10222            let item_ids_in_pane =
10223                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10224            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10225            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10226            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10227            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10228            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10229
10230            // Single pane left: no-op
10231            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10232        });
10233
10234        workspace.update(cx, |workspace, _cx| {
10235            let active_pane = workspace.active_pane();
10236            assert_eq!(top_pane_id, active_pane.entity_id());
10237        });
10238    }
10239
10240    fn add_an_item_to_active_pane(
10241        cx: &mut VisualTestContext,
10242        workspace: &Entity<Workspace>,
10243        item_id: u64,
10244    ) -> Entity<TestItem> {
10245        let item = cx.new(|cx| {
10246            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10247                item_id,
10248                "item{item_id}.txt",
10249                cx,
10250            )])
10251        });
10252        workspace.update_in(cx, |workspace, window, cx| {
10253            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10254        });
10255        item
10256    }
10257
10258    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10259        workspace.update_in(cx, |workspace, window, cx| {
10260            workspace.split_pane(
10261                workspace.active_pane().clone(),
10262                SplitDirection::Right,
10263                window,
10264                cx,
10265            )
10266        })
10267    }
10268
10269    #[gpui::test]
10270    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10271        init_test(cx);
10272        let fs = FakeFs::new(cx.executor());
10273        let project = Project::test(fs, None, cx).await;
10274        let (workspace, cx) =
10275            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10276
10277        add_an_item_to_active_pane(cx, &workspace, 1);
10278        split_pane(cx, &workspace);
10279        add_an_item_to_active_pane(cx, &workspace, 2);
10280        split_pane(cx, &workspace); // empty pane
10281        split_pane(cx, &workspace);
10282        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10283
10284        cx.executor().run_until_parked();
10285
10286        workspace.update(cx, |workspace, cx| {
10287            let num_panes = workspace.panes().len();
10288            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10289            let active_item = workspace
10290                .active_pane()
10291                .read(cx)
10292                .active_item()
10293                .expect("item is in focus");
10294
10295            assert_eq!(num_panes, 4);
10296            assert_eq!(num_items_in_current_pane, 1);
10297            assert_eq!(active_item.item_id(), last_item.item_id());
10298        });
10299
10300        workspace.update_in(cx, |workspace, window, cx| {
10301            workspace.join_all_panes(window, cx);
10302        });
10303
10304        workspace.update(cx, |workspace, cx| {
10305            let num_panes = workspace.panes().len();
10306            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10307            let active_item = workspace
10308                .active_pane()
10309                .read(cx)
10310                .active_item()
10311                .expect("item is in focus");
10312
10313            assert_eq!(num_panes, 1);
10314            assert_eq!(num_items_in_current_pane, 3);
10315            assert_eq!(active_item.item_id(), last_item.item_id());
10316        });
10317    }
10318    struct TestModal(FocusHandle);
10319
10320    impl TestModal {
10321        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10322            Self(cx.focus_handle())
10323        }
10324    }
10325
10326    impl EventEmitter<DismissEvent> for TestModal {}
10327
10328    impl Focusable for TestModal {
10329        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10330            self.0.clone()
10331        }
10332    }
10333
10334    impl ModalView for TestModal {}
10335
10336    impl Render for TestModal {
10337        fn render(
10338            &mut self,
10339            _window: &mut Window,
10340            _cx: &mut Context<TestModal>,
10341        ) -> impl IntoElement {
10342            div().track_focus(&self.0)
10343        }
10344    }
10345
10346    #[gpui::test]
10347    async fn test_panels(cx: &mut gpui::TestAppContext) {
10348        init_test(cx);
10349        let fs = FakeFs::new(cx.executor());
10350
10351        let project = Project::test(fs, [], cx).await;
10352        let (workspace, cx) =
10353            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10354
10355        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10356            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10357            workspace.add_panel(panel_1.clone(), window, cx);
10358            workspace.toggle_dock(DockPosition::Left, window, cx);
10359            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10360            workspace.add_panel(panel_2.clone(), window, cx);
10361            workspace.toggle_dock(DockPosition::Right, window, cx);
10362
10363            let left_dock = workspace.left_dock();
10364            assert_eq!(
10365                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10366                panel_1.panel_id()
10367            );
10368            assert_eq!(
10369                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10370                panel_1.size(window, cx)
10371            );
10372
10373            left_dock.update(cx, |left_dock, cx| {
10374                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10375            });
10376            assert_eq!(
10377                workspace
10378                    .right_dock()
10379                    .read(cx)
10380                    .visible_panel()
10381                    .unwrap()
10382                    .panel_id(),
10383                panel_2.panel_id(),
10384            );
10385
10386            (panel_1, panel_2)
10387        });
10388
10389        // Move panel_1 to the right
10390        panel_1.update_in(cx, |panel_1, window, cx| {
10391            panel_1.set_position(DockPosition::Right, window, cx)
10392        });
10393
10394        workspace.update_in(cx, |workspace, window, cx| {
10395            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10396            // Since it was the only panel on the left, the left dock should now be closed.
10397            assert!(!workspace.left_dock().read(cx).is_open());
10398            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10399            let right_dock = workspace.right_dock();
10400            assert_eq!(
10401                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10402                panel_1.panel_id()
10403            );
10404            assert_eq!(
10405                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10406                px(1337.)
10407            );
10408
10409            // Now we move panel_2 to the left
10410            panel_2.set_position(DockPosition::Left, window, cx);
10411        });
10412
10413        workspace.update(cx, |workspace, cx| {
10414            // Since panel_2 was not visible on the right, we don't open the left dock.
10415            assert!(!workspace.left_dock().read(cx).is_open());
10416            // And the right dock is unaffected in its displaying of panel_1
10417            assert!(workspace.right_dock().read(cx).is_open());
10418            assert_eq!(
10419                workspace
10420                    .right_dock()
10421                    .read(cx)
10422                    .visible_panel()
10423                    .unwrap()
10424                    .panel_id(),
10425                panel_1.panel_id(),
10426            );
10427        });
10428
10429        // Move panel_1 back to the left
10430        panel_1.update_in(cx, |panel_1, window, cx| {
10431            panel_1.set_position(DockPosition::Left, window, cx)
10432        });
10433
10434        workspace.update_in(cx, |workspace, window, cx| {
10435            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10436            let left_dock = workspace.left_dock();
10437            assert!(left_dock.read(cx).is_open());
10438            assert_eq!(
10439                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10440                panel_1.panel_id()
10441            );
10442            assert_eq!(
10443                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10444                px(1337.)
10445            );
10446            // And the right dock should be closed as it no longer has any panels.
10447            assert!(!workspace.right_dock().read(cx).is_open());
10448
10449            // Now we move panel_1 to the bottom
10450            panel_1.set_position(DockPosition::Bottom, window, cx);
10451        });
10452
10453        workspace.update_in(cx, |workspace, window, cx| {
10454            // Since panel_1 was visible on the left, we close the left dock.
10455            assert!(!workspace.left_dock().read(cx).is_open());
10456            // The bottom dock is sized based on the panel's default size,
10457            // since the panel orientation changed from vertical to horizontal.
10458            let bottom_dock = workspace.bottom_dock();
10459            assert_eq!(
10460                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10461                panel_1.size(window, cx),
10462            );
10463            // Close bottom dock and move panel_1 back to the left.
10464            bottom_dock.update(cx, |bottom_dock, cx| {
10465                bottom_dock.set_open(false, window, cx)
10466            });
10467            panel_1.set_position(DockPosition::Left, window, cx);
10468        });
10469
10470        // Emit activated event on panel 1
10471        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10472
10473        // Now the left dock is open and panel_1 is active and focused.
10474        workspace.update_in(cx, |workspace, window, cx| {
10475            let left_dock = workspace.left_dock();
10476            assert!(left_dock.read(cx).is_open());
10477            assert_eq!(
10478                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10479                panel_1.panel_id(),
10480            );
10481            assert!(panel_1.focus_handle(cx).is_focused(window));
10482        });
10483
10484        // Emit closed event on panel 2, which is not active
10485        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10486
10487        // Wo don't close the left dock, because panel_2 wasn't the active panel
10488        workspace.update(cx, |workspace, cx| {
10489            let left_dock = workspace.left_dock();
10490            assert!(left_dock.read(cx).is_open());
10491            assert_eq!(
10492                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10493                panel_1.panel_id(),
10494            );
10495        });
10496
10497        // Emitting a ZoomIn event shows the panel as zoomed.
10498        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10499        workspace.read_with(cx, |workspace, _| {
10500            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10501            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10502        });
10503
10504        // Move panel to another dock while it is zoomed
10505        panel_1.update_in(cx, |panel, window, cx| {
10506            panel.set_position(DockPosition::Right, window, cx)
10507        });
10508        workspace.read_with(cx, |workspace, _| {
10509            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10510
10511            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10512        });
10513
10514        // This is a helper for getting a:
10515        // - valid focus on an element,
10516        // - that isn't a part of the panes and panels system of the Workspace,
10517        // - and doesn't trigger the 'on_focus_lost' API.
10518        let focus_other_view = {
10519            let workspace = workspace.clone();
10520            move |cx: &mut VisualTestContext| {
10521                workspace.update_in(cx, |workspace, window, cx| {
10522                    if workspace.active_modal::<TestModal>(cx).is_some() {
10523                        workspace.toggle_modal(window, cx, TestModal::new);
10524                        workspace.toggle_modal(window, cx, TestModal::new);
10525                    } else {
10526                        workspace.toggle_modal(window, cx, TestModal::new);
10527                    }
10528                })
10529            }
10530        };
10531
10532        // If focus is transferred to another view that's not a panel or another pane, we still show
10533        // the panel as zoomed.
10534        focus_other_view(cx);
10535        workspace.read_with(cx, |workspace, _| {
10536            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10537            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10538        });
10539
10540        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10541        workspace.update_in(cx, |_workspace, window, cx| {
10542            cx.focus_self(window);
10543        });
10544        workspace.read_with(cx, |workspace, _| {
10545            assert_eq!(workspace.zoomed, None);
10546            assert_eq!(workspace.zoomed_position, None);
10547        });
10548
10549        // If focus is transferred again to another view that's not a panel or a pane, we won't
10550        // show the panel as zoomed because it wasn't zoomed before.
10551        focus_other_view(cx);
10552        workspace.read_with(cx, |workspace, _| {
10553            assert_eq!(workspace.zoomed, None);
10554            assert_eq!(workspace.zoomed_position, None);
10555        });
10556
10557        // When the panel is activated, it is zoomed again.
10558        cx.dispatch_action(ToggleRightDock);
10559        workspace.read_with(cx, |workspace, _| {
10560            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10561            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10562        });
10563
10564        // Emitting a ZoomOut event unzooms the panel.
10565        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10566        workspace.read_with(cx, |workspace, _| {
10567            assert_eq!(workspace.zoomed, None);
10568            assert_eq!(workspace.zoomed_position, None);
10569        });
10570
10571        // Emit closed event on panel 1, which is active
10572        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10573
10574        // Now the left dock is closed, because panel_1 was the active panel
10575        workspace.update(cx, |workspace, cx| {
10576            let right_dock = workspace.right_dock();
10577            assert!(!right_dock.read(cx).is_open());
10578        });
10579    }
10580
10581    #[gpui::test]
10582    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10583        init_test(cx);
10584
10585        let fs = FakeFs::new(cx.background_executor.clone());
10586        let project = Project::test(fs, [], cx).await;
10587        let (workspace, cx) =
10588            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10589        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10590
10591        let dirty_regular_buffer = cx.new(|cx| {
10592            TestItem::new(cx)
10593                .with_dirty(true)
10594                .with_label("1.txt")
10595                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10596        });
10597        let dirty_regular_buffer_2 = cx.new(|cx| {
10598            TestItem::new(cx)
10599                .with_dirty(true)
10600                .with_label("2.txt")
10601                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10602        });
10603        let dirty_multi_buffer_with_both = cx.new(|cx| {
10604            TestItem::new(cx)
10605                .with_dirty(true)
10606                .with_buffer_kind(ItemBufferKind::Multibuffer)
10607                .with_label("Fake Project Search")
10608                .with_project_items(&[
10609                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10610                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10611                ])
10612        });
10613        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10614        workspace.update_in(cx, |workspace, window, cx| {
10615            workspace.add_item(
10616                pane.clone(),
10617                Box::new(dirty_regular_buffer.clone()),
10618                None,
10619                false,
10620                false,
10621                window,
10622                cx,
10623            );
10624            workspace.add_item(
10625                pane.clone(),
10626                Box::new(dirty_regular_buffer_2.clone()),
10627                None,
10628                false,
10629                false,
10630                window,
10631                cx,
10632            );
10633            workspace.add_item(
10634                pane.clone(),
10635                Box::new(dirty_multi_buffer_with_both.clone()),
10636                None,
10637                false,
10638                false,
10639                window,
10640                cx,
10641            );
10642        });
10643
10644        pane.update_in(cx, |pane, window, cx| {
10645            pane.activate_item(2, true, true, window, cx);
10646            assert_eq!(
10647                pane.active_item().unwrap().item_id(),
10648                multi_buffer_with_both_files_id,
10649                "Should select the multi buffer in the pane"
10650            );
10651        });
10652        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10653            pane.close_other_items(
10654                &CloseOtherItems {
10655                    save_intent: Some(SaveIntent::Save),
10656                    close_pinned: true,
10657                },
10658                None,
10659                window,
10660                cx,
10661            )
10662        });
10663        cx.background_executor.run_until_parked();
10664        assert!(!cx.has_pending_prompt());
10665        close_all_but_multi_buffer_task
10666            .await
10667            .expect("Closing all buffers but the multi buffer failed");
10668        pane.update(cx, |pane, cx| {
10669            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10670            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10671            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10672            assert_eq!(pane.items_len(), 1);
10673            assert_eq!(
10674                pane.active_item().unwrap().item_id(),
10675                multi_buffer_with_both_files_id,
10676                "Should have only the multi buffer left in the pane"
10677            );
10678            assert!(
10679                dirty_multi_buffer_with_both.read(cx).is_dirty,
10680                "The multi buffer containing the unsaved buffer should still be dirty"
10681            );
10682        });
10683
10684        dirty_regular_buffer.update(cx, |buffer, cx| {
10685            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10686        });
10687
10688        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10689            pane.close_active_item(
10690                &CloseActiveItem {
10691                    save_intent: Some(SaveIntent::Close),
10692                    close_pinned: false,
10693                },
10694                window,
10695                cx,
10696            )
10697        });
10698        cx.background_executor.run_until_parked();
10699        assert!(
10700            cx.has_pending_prompt(),
10701            "Dirty multi buffer should prompt a save dialog"
10702        );
10703        cx.simulate_prompt_answer("Save");
10704        cx.background_executor.run_until_parked();
10705        close_multi_buffer_task
10706            .await
10707            .expect("Closing the multi buffer failed");
10708        pane.update(cx, |pane, cx| {
10709            assert_eq!(
10710                dirty_multi_buffer_with_both.read(cx).save_count,
10711                1,
10712                "Multi buffer item should get be saved"
10713            );
10714            // Test impl does not save inner items, so we do not assert them
10715            assert_eq!(
10716                pane.items_len(),
10717                0,
10718                "No more items should be left in the pane"
10719            );
10720            assert!(pane.active_item().is_none());
10721        });
10722    }
10723
10724    #[gpui::test]
10725    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10726        cx: &mut TestAppContext,
10727    ) {
10728        init_test(cx);
10729
10730        let fs = FakeFs::new(cx.background_executor.clone());
10731        let project = Project::test(fs, [], cx).await;
10732        let (workspace, cx) =
10733            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10734        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10735
10736        let dirty_regular_buffer = cx.new(|cx| {
10737            TestItem::new(cx)
10738                .with_dirty(true)
10739                .with_label("1.txt")
10740                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10741        });
10742        let dirty_regular_buffer_2 = cx.new(|cx| {
10743            TestItem::new(cx)
10744                .with_dirty(true)
10745                .with_label("2.txt")
10746                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10747        });
10748        let clear_regular_buffer = cx.new(|cx| {
10749            TestItem::new(cx)
10750                .with_label("3.txt")
10751                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10752        });
10753
10754        let dirty_multi_buffer_with_both = cx.new(|cx| {
10755            TestItem::new(cx)
10756                .with_dirty(true)
10757                .with_buffer_kind(ItemBufferKind::Multibuffer)
10758                .with_label("Fake Project Search")
10759                .with_project_items(&[
10760                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10761                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10762                    clear_regular_buffer.read(cx).project_items[0].clone(),
10763                ])
10764        });
10765        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10766        workspace.update_in(cx, |workspace, window, cx| {
10767            workspace.add_item(
10768                pane.clone(),
10769                Box::new(dirty_regular_buffer.clone()),
10770                None,
10771                false,
10772                false,
10773                window,
10774                cx,
10775            );
10776            workspace.add_item(
10777                pane.clone(),
10778                Box::new(dirty_multi_buffer_with_both.clone()),
10779                None,
10780                false,
10781                false,
10782                window,
10783                cx,
10784            );
10785        });
10786
10787        pane.update_in(cx, |pane, window, cx| {
10788            pane.activate_item(1, true, true, window, cx);
10789            assert_eq!(
10790                pane.active_item().unwrap().item_id(),
10791                multi_buffer_with_both_files_id,
10792                "Should select the multi buffer in the pane"
10793            );
10794        });
10795        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10796            pane.close_active_item(
10797                &CloseActiveItem {
10798                    save_intent: None,
10799                    close_pinned: false,
10800                },
10801                window,
10802                cx,
10803            )
10804        });
10805        cx.background_executor.run_until_parked();
10806        assert!(
10807            cx.has_pending_prompt(),
10808            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10809        );
10810    }
10811
10812    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10813    /// closed when they are deleted from disk.
10814    #[gpui::test]
10815    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10816        init_test(cx);
10817
10818        // Enable the close_on_disk_deletion setting
10819        cx.update_global(|store: &mut SettingsStore, cx| {
10820            store.update_user_settings(cx, |settings| {
10821                settings.workspace.close_on_file_delete = Some(true);
10822            });
10823        });
10824
10825        let fs = FakeFs::new(cx.background_executor.clone());
10826        let project = Project::test(fs, [], cx).await;
10827        let (workspace, cx) =
10828            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10829        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10830
10831        // Create a test item that simulates a file
10832        let item = cx.new(|cx| {
10833            TestItem::new(cx)
10834                .with_label("test.txt")
10835                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10836        });
10837
10838        // Add item to workspace
10839        workspace.update_in(cx, |workspace, window, cx| {
10840            workspace.add_item(
10841                pane.clone(),
10842                Box::new(item.clone()),
10843                None,
10844                false,
10845                false,
10846                window,
10847                cx,
10848            );
10849        });
10850
10851        // Verify the item is in the pane
10852        pane.read_with(cx, |pane, _| {
10853            assert_eq!(pane.items().count(), 1);
10854        });
10855
10856        // Simulate file deletion by setting the item's deleted state
10857        item.update(cx, |item, _| {
10858            item.set_has_deleted_file(true);
10859        });
10860
10861        // Emit UpdateTab event to trigger the close behavior
10862        cx.run_until_parked();
10863        item.update(cx, |_, cx| {
10864            cx.emit(ItemEvent::UpdateTab);
10865        });
10866
10867        // Allow the close operation to complete
10868        cx.run_until_parked();
10869
10870        // Verify the item was automatically closed
10871        pane.read_with(cx, |pane, _| {
10872            assert_eq!(
10873                pane.items().count(),
10874                0,
10875                "Item should be automatically closed when file is deleted"
10876            );
10877        });
10878    }
10879
10880    /// Tests that when `close_on_file_delete` is disabled (default), files remain
10881    /// open with a strikethrough when they are deleted from disk.
10882    #[gpui::test]
10883    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
10884        init_test(cx);
10885
10886        // Ensure close_on_disk_deletion is disabled (default)
10887        cx.update_global(|store: &mut SettingsStore, cx| {
10888            store.update_user_settings(cx, |settings| {
10889                settings.workspace.close_on_file_delete = Some(false);
10890            });
10891        });
10892
10893        let fs = FakeFs::new(cx.background_executor.clone());
10894        let project = Project::test(fs, [], cx).await;
10895        let (workspace, cx) =
10896            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10897        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10898
10899        // Create a test item that simulates a file
10900        let item = cx.new(|cx| {
10901            TestItem::new(cx)
10902                .with_label("test.txt")
10903                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10904        });
10905
10906        // Add item to workspace
10907        workspace.update_in(cx, |workspace, window, cx| {
10908            workspace.add_item(
10909                pane.clone(),
10910                Box::new(item.clone()),
10911                None,
10912                false,
10913                false,
10914                window,
10915                cx,
10916            );
10917        });
10918
10919        // Verify the item is in the pane
10920        pane.read_with(cx, |pane, _| {
10921            assert_eq!(pane.items().count(), 1);
10922        });
10923
10924        // Simulate file deletion
10925        item.update(cx, |item, _| {
10926            item.set_has_deleted_file(true);
10927        });
10928
10929        // Emit UpdateTab event
10930        cx.run_until_parked();
10931        item.update(cx, |_, cx| {
10932            cx.emit(ItemEvent::UpdateTab);
10933        });
10934
10935        // Allow any potential close operation to complete
10936        cx.run_until_parked();
10937
10938        // Verify the item remains open (with strikethrough)
10939        pane.read_with(cx, |pane, _| {
10940            assert_eq!(
10941                pane.items().count(),
10942                1,
10943                "Item should remain open when close_on_disk_deletion is disabled"
10944            );
10945        });
10946
10947        // Verify the item shows as deleted
10948        item.read_with(cx, |item, _| {
10949            assert!(
10950                item.has_deleted_file,
10951                "Item should be marked as having deleted file"
10952            );
10953        });
10954    }
10955
10956    /// Tests that dirty files are not automatically closed when deleted from disk,
10957    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
10958    /// unsaved changes without being prompted.
10959    #[gpui::test]
10960    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
10961        init_test(cx);
10962
10963        // Enable the close_on_file_delete setting
10964        cx.update_global(|store: &mut SettingsStore, cx| {
10965            store.update_user_settings(cx, |settings| {
10966                settings.workspace.close_on_file_delete = Some(true);
10967            });
10968        });
10969
10970        let fs = FakeFs::new(cx.background_executor.clone());
10971        let project = Project::test(fs, [], cx).await;
10972        let (workspace, cx) =
10973            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10974        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10975
10976        // Create a dirty test item
10977        let item = cx.new(|cx| {
10978            TestItem::new(cx)
10979                .with_dirty(true)
10980                .with_label("test.txt")
10981                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10982        });
10983
10984        // Add item to workspace
10985        workspace.update_in(cx, |workspace, window, cx| {
10986            workspace.add_item(
10987                pane.clone(),
10988                Box::new(item.clone()),
10989                None,
10990                false,
10991                false,
10992                window,
10993                cx,
10994            );
10995        });
10996
10997        // Simulate file deletion
10998        item.update(cx, |item, _| {
10999            item.set_has_deleted_file(true);
11000        });
11001
11002        // Emit UpdateTab event to trigger the close behavior
11003        cx.run_until_parked();
11004        item.update(cx, |_, cx| {
11005            cx.emit(ItemEvent::UpdateTab);
11006        });
11007
11008        // Allow any potential close operation to complete
11009        cx.run_until_parked();
11010
11011        // Verify the item remains open (dirty files are not auto-closed)
11012        pane.read_with(cx, |pane, _| {
11013            assert_eq!(
11014                pane.items().count(),
11015                1,
11016                "Dirty items should not be automatically closed even when file is deleted"
11017            );
11018        });
11019
11020        // Verify the item is marked as deleted and still dirty
11021        item.read_with(cx, |item, _| {
11022            assert!(
11023                item.has_deleted_file,
11024                "Item should be marked as having deleted file"
11025            );
11026            assert!(item.is_dirty, "Item should still be dirty");
11027        });
11028    }
11029
11030    /// Tests that navigation history is cleaned up when files are auto-closed
11031    /// due to deletion from disk.
11032    #[gpui::test]
11033    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11034        init_test(cx);
11035
11036        // Enable the close_on_file_delete setting
11037        cx.update_global(|store: &mut SettingsStore, cx| {
11038            store.update_user_settings(cx, |settings| {
11039                settings.workspace.close_on_file_delete = Some(true);
11040            });
11041        });
11042
11043        let fs = FakeFs::new(cx.background_executor.clone());
11044        let project = Project::test(fs, [], cx).await;
11045        let (workspace, cx) =
11046            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11047        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11048
11049        // Create test items
11050        let item1 = cx.new(|cx| {
11051            TestItem::new(cx)
11052                .with_label("test1.txt")
11053                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11054        });
11055        let item1_id = item1.item_id();
11056
11057        let item2 = cx.new(|cx| {
11058            TestItem::new(cx)
11059                .with_label("test2.txt")
11060                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11061        });
11062
11063        // Add items to workspace
11064        workspace.update_in(cx, |workspace, window, cx| {
11065            workspace.add_item(
11066                pane.clone(),
11067                Box::new(item1.clone()),
11068                None,
11069                false,
11070                false,
11071                window,
11072                cx,
11073            );
11074            workspace.add_item(
11075                pane.clone(),
11076                Box::new(item2.clone()),
11077                None,
11078                false,
11079                false,
11080                window,
11081                cx,
11082            );
11083        });
11084
11085        // Activate item1 to ensure it gets navigation entries
11086        pane.update_in(cx, |pane, window, cx| {
11087            pane.activate_item(0, true, true, window, cx);
11088        });
11089
11090        // Switch to item2 and back to create navigation history
11091        pane.update_in(cx, |pane, window, cx| {
11092            pane.activate_item(1, true, true, window, cx);
11093        });
11094        cx.run_until_parked();
11095
11096        pane.update_in(cx, |pane, window, cx| {
11097            pane.activate_item(0, true, true, window, cx);
11098        });
11099        cx.run_until_parked();
11100
11101        // Simulate file deletion for item1
11102        item1.update(cx, |item, _| {
11103            item.set_has_deleted_file(true);
11104        });
11105
11106        // Emit UpdateTab event to trigger the close behavior
11107        item1.update(cx, |_, cx| {
11108            cx.emit(ItemEvent::UpdateTab);
11109        });
11110        cx.run_until_parked();
11111
11112        // Verify item1 was closed
11113        pane.read_with(cx, |pane, _| {
11114            assert_eq!(
11115                pane.items().count(),
11116                1,
11117                "Should have 1 item remaining after auto-close"
11118            );
11119        });
11120
11121        // Check navigation history after close
11122        let has_item = pane.read_with(cx, |pane, cx| {
11123            let mut has_item = false;
11124            pane.nav_history().for_each_entry(cx, |entry, _| {
11125                if entry.item.id() == item1_id {
11126                    has_item = true;
11127                }
11128            });
11129            has_item
11130        });
11131
11132        assert!(
11133            !has_item,
11134            "Navigation history should not contain closed item entries"
11135        );
11136    }
11137
11138    #[gpui::test]
11139    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11140        cx: &mut TestAppContext,
11141    ) {
11142        init_test(cx);
11143
11144        let fs = FakeFs::new(cx.background_executor.clone());
11145        let project = Project::test(fs, [], cx).await;
11146        let (workspace, cx) =
11147            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11148        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11149
11150        let dirty_regular_buffer = cx.new(|cx| {
11151            TestItem::new(cx)
11152                .with_dirty(true)
11153                .with_label("1.txt")
11154                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11155        });
11156        let dirty_regular_buffer_2 = cx.new(|cx| {
11157            TestItem::new(cx)
11158                .with_dirty(true)
11159                .with_label("2.txt")
11160                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11161        });
11162        let clear_regular_buffer = cx.new(|cx| {
11163            TestItem::new(cx)
11164                .with_label("3.txt")
11165                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11166        });
11167
11168        let dirty_multi_buffer = cx.new(|cx| {
11169            TestItem::new(cx)
11170                .with_dirty(true)
11171                .with_buffer_kind(ItemBufferKind::Multibuffer)
11172                .with_label("Fake Project Search")
11173                .with_project_items(&[
11174                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11175                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11176                    clear_regular_buffer.read(cx).project_items[0].clone(),
11177                ])
11178        });
11179        workspace.update_in(cx, |workspace, window, cx| {
11180            workspace.add_item(
11181                pane.clone(),
11182                Box::new(dirty_regular_buffer.clone()),
11183                None,
11184                false,
11185                false,
11186                window,
11187                cx,
11188            );
11189            workspace.add_item(
11190                pane.clone(),
11191                Box::new(dirty_regular_buffer_2.clone()),
11192                None,
11193                false,
11194                false,
11195                window,
11196                cx,
11197            );
11198            workspace.add_item(
11199                pane.clone(),
11200                Box::new(dirty_multi_buffer.clone()),
11201                None,
11202                false,
11203                false,
11204                window,
11205                cx,
11206            );
11207        });
11208
11209        pane.update_in(cx, |pane, window, cx| {
11210            pane.activate_item(2, true, true, window, cx);
11211            assert_eq!(
11212                pane.active_item().unwrap().item_id(),
11213                dirty_multi_buffer.item_id(),
11214                "Should select the multi buffer in the pane"
11215            );
11216        });
11217        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11218            pane.close_active_item(
11219                &CloseActiveItem {
11220                    save_intent: None,
11221                    close_pinned: false,
11222                },
11223                window,
11224                cx,
11225            )
11226        });
11227        cx.background_executor.run_until_parked();
11228        assert!(
11229            !cx.has_pending_prompt(),
11230            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11231        );
11232        close_multi_buffer_task
11233            .await
11234            .expect("Closing multi buffer failed");
11235        pane.update(cx, |pane, cx| {
11236            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11237            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11238            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11239            assert_eq!(
11240                pane.items()
11241                    .map(|item| item.item_id())
11242                    .sorted()
11243                    .collect::<Vec<_>>(),
11244                vec![
11245                    dirty_regular_buffer.item_id(),
11246                    dirty_regular_buffer_2.item_id(),
11247                ],
11248                "Should have no multi buffer left in the pane"
11249            );
11250            assert!(dirty_regular_buffer.read(cx).is_dirty);
11251            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11252        });
11253    }
11254
11255    #[gpui::test]
11256    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11257        init_test(cx);
11258        let fs = FakeFs::new(cx.executor());
11259        let project = Project::test(fs, [], cx).await;
11260        let (workspace, cx) =
11261            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11262
11263        // Add a new panel to the right dock, opening the dock and setting the
11264        // focus to the new panel.
11265        let panel = workspace.update_in(cx, |workspace, window, cx| {
11266            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11267            workspace.add_panel(panel.clone(), window, cx);
11268
11269            workspace
11270                .right_dock()
11271                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11272
11273            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11274
11275            panel
11276        });
11277
11278        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11279        // panel to the next valid position which, in this case, is the left
11280        // dock.
11281        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11282        workspace.update(cx, |workspace, cx| {
11283            assert!(workspace.left_dock().read(cx).is_open());
11284            assert_eq!(panel.read(cx).position, DockPosition::Left);
11285        });
11286
11287        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11288        // panel to the next valid position which, in this case, is the bottom
11289        // dock.
11290        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11291        workspace.update(cx, |workspace, cx| {
11292            assert!(workspace.bottom_dock().read(cx).is_open());
11293            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11294        });
11295
11296        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11297        // around moving the panel to its initial position, the right dock.
11298        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11299        workspace.update(cx, |workspace, cx| {
11300            assert!(workspace.right_dock().read(cx).is_open());
11301            assert_eq!(panel.read(cx).position, DockPosition::Right);
11302        });
11303
11304        // Remove focus from the panel, ensuring that, if the panel is not
11305        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11306        // the panel's position, so the panel is still in the right dock.
11307        workspace.update_in(cx, |workspace, window, cx| {
11308            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11309        });
11310
11311        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11312        workspace.update(cx, |workspace, cx| {
11313            assert!(workspace.right_dock().read(cx).is_open());
11314            assert_eq!(panel.read(cx).position, DockPosition::Right);
11315        });
11316    }
11317
11318    #[gpui::test]
11319    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11320        init_test(cx);
11321
11322        let fs = FakeFs::new(cx.executor());
11323        let project = Project::test(fs, [], cx).await;
11324        let (workspace, cx) =
11325            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11326
11327        let item_1 = cx.new(|cx| {
11328            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11329        });
11330        workspace.update_in(cx, |workspace, window, cx| {
11331            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11332            workspace.move_item_to_pane_in_direction(
11333                &MoveItemToPaneInDirection {
11334                    direction: SplitDirection::Right,
11335                    focus: true,
11336                    clone: false,
11337                },
11338                window,
11339                cx,
11340            );
11341            workspace.move_item_to_pane_at_index(
11342                &MoveItemToPane {
11343                    destination: 3,
11344                    focus: true,
11345                    clone: false,
11346                },
11347                window,
11348                cx,
11349            );
11350
11351            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11352            assert_eq!(
11353                pane_items_paths(&workspace.active_pane, cx),
11354                vec!["first.txt".to_string()],
11355                "Single item was not moved anywhere"
11356            );
11357        });
11358
11359        let item_2 = cx.new(|cx| {
11360            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11361        });
11362        workspace.update_in(cx, |workspace, window, cx| {
11363            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11364            assert_eq!(
11365                pane_items_paths(&workspace.panes[0], cx),
11366                vec!["first.txt".to_string(), "second.txt".to_string()],
11367            );
11368            workspace.move_item_to_pane_in_direction(
11369                &MoveItemToPaneInDirection {
11370                    direction: SplitDirection::Right,
11371                    focus: true,
11372                    clone: false,
11373                },
11374                window,
11375                cx,
11376            );
11377
11378            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11379            assert_eq!(
11380                pane_items_paths(&workspace.panes[0], cx),
11381                vec!["first.txt".to_string()],
11382                "After moving, one item should be left in the original pane"
11383            );
11384            assert_eq!(
11385                pane_items_paths(&workspace.panes[1], cx),
11386                vec!["second.txt".to_string()],
11387                "New item should have been moved to the new pane"
11388            );
11389        });
11390
11391        let item_3 = cx.new(|cx| {
11392            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11393        });
11394        workspace.update_in(cx, |workspace, window, cx| {
11395            let original_pane = workspace.panes[0].clone();
11396            workspace.set_active_pane(&original_pane, window, cx);
11397            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11398            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11399            assert_eq!(
11400                pane_items_paths(&workspace.active_pane, cx),
11401                vec!["first.txt".to_string(), "third.txt".to_string()],
11402                "New pane should be ready to move one item out"
11403            );
11404
11405            workspace.move_item_to_pane_at_index(
11406                &MoveItemToPane {
11407                    destination: 3,
11408                    focus: true,
11409                    clone: false,
11410                },
11411                window,
11412                cx,
11413            );
11414            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11415            assert_eq!(
11416                pane_items_paths(&workspace.active_pane, cx),
11417                vec!["first.txt".to_string()],
11418                "After moving, one item should be left in the original pane"
11419            );
11420            assert_eq!(
11421                pane_items_paths(&workspace.panes[1], cx),
11422                vec!["second.txt".to_string()],
11423                "Previously created pane should be unchanged"
11424            );
11425            assert_eq!(
11426                pane_items_paths(&workspace.panes[2], cx),
11427                vec!["third.txt".to_string()],
11428                "New item should have been moved to the new pane"
11429            );
11430        });
11431    }
11432
11433    #[gpui::test]
11434    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11435        init_test(cx);
11436
11437        let fs = FakeFs::new(cx.executor());
11438        let project = Project::test(fs, [], cx).await;
11439        let (workspace, cx) =
11440            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11441
11442        let item_1 = cx.new(|cx| {
11443            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11444        });
11445        workspace.update_in(cx, |workspace, window, cx| {
11446            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11447            workspace.move_item_to_pane_in_direction(
11448                &MoveItemToPaneInDirection {
11449                    direction: SplitDirection::Right,
11450                    focus: true,
11451                    clone: true,
11452                },
11453                window,
11454                cx,
11455            );
11456            workspace.move_item_to_pane_at_index(
11457                &MoveItemToPane {
11458                    destination: 3,
11459                    focus: true,
11460                    clone: true,
11461                },
11462                window,
11463                cx,
11464            );
11465        });
11466        cx.run_until_parked();
11467
11468        workspace.update(cx, |workspace, cx| {
11469            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11470            for pane in workspace.panes() {
11471                assert_eq!(
11472                    pane_items_paths(pane, cx),
11473                    vec!["first.txt".to_string()],
11474                    "Single item exists in all panes"
11475                );
11476            }
11477        });
11478
11479        // verify that the active pane has been updated after waiting for the
11480        // pane focus event to fire and resolve
11481        workspace.read_with(cx, |workspace, _app| {
11482            assert_eq!(
11483                workspace.active_pane(),
11484                &workspace.panes[2],
11485                "The third pane should be the active one: {:?}",
11486                workspace.panes
11487            );
11488        })
11489    }
11490
11491    mod register_project_item_tests {
11492
11493        use super::*;
11494
11495        // View
11496        struct TestPngItemView {
11497            focus_handle: FocusHandle,
11498        }
11499        // Model
11500        struct TestPngItem {}
11501
11502        impl project::ProjectItem for TestPngItem {
11503            fn try_open(
11504                _project: &Entity<Project>,
11505                path: &ProjectPath,
11506                cx: &mut App,
11507            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11508                if path.path.extension().unwrap() == "png" {
11509                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11510                } else {
11511                    None
11512                }
11513            }
11514
11515            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11516                None
11517            }
11518
11519            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11520                None
11521            }
11522
11523            fn is_dirty(&self) -> bool {
11524                false
11525            }
11526        }
11527
11528        impl Item for TestPngItemView {
11529            type Event = ();
11530            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11531                "".into()
11532            }
11533        }
11534        impl EventEmitter<()> for TestPngItemView {}
11535        impl Focusable for TestPngItemView {
11536            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11537                self.focus_handle.clone()
11538            }
11539        }
11540
11541        impl Render for TestPngItemView {
11542            fn render(
11543                &mut self,
11544                _window: &mut Window,
11545                _cx: &mut Context<Self>,
11546            ) -> impl IntoElement {
11547                Empty
11548            }
11549        }
11550
11551        impl ProjectItem for TestPngItemView {
11552            type Item = TestPngItem;
11553
11554            fn for_project_item(
11555                _project: Entity<Project>,
11556                _pane: Option<&Pane>,
11557                _item: Entity<Self::Item>,
11558                _: &mut Window,
11559                cx: &mut Context<Self>,
11560            ) -> Self
11561            where
11562                Self: Sized,
11563            {
11564                Self {
11565                    focus_handle: cx.focus_handle(),
11566                }
11567            }
11568        }
11569
11570        // View
11571        struct TestIpynbItemView {
11572            focus_handle: FocusHandle,
11573        }
11574        // Model
11575        struct TestIpynbItem {}
11576
11577        impl project::ProjectItem for TestIpynbItem {
11578            fn try_open(
11579                _project: &Entity<Project>,
11580                path: &ProjectPath,
11581                cx: &mut App,
11582            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11583                if path.path.extension().unwrap() == "ipynb" {
11584                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11585                } else {
11586                    None
11587                }
11588            }
11589
11590            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11591                None
11592            }
11593
11594            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11595                None
11596            }
11597
11598            fn is_dirty(&self) -> bool {
11599                false
11600            }
11601        }
11602
11603        impl Item for TestIpynbItemView {
11604            type Event = ();
11605            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11606                "".into()
11607            }
11608        }
11609        impl EventEmitter<()> for TestIpynbItemView {}
11610        impl Focusable for TestIpynbItemView {
11611            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11612                self.focus_handle.clone()
11613            }
11614        }
11615
11616        impl Render for TestIpynbItemView {
11617            fn render(
11618                &mut self,
11619                _window: &mut Window,
11620                _cx: &mut Context<Self>,
11621            ) -> impl IntoElement {
11622                Empty
11623            }
11624        }
11625
11626        impl ProjectItem for TestIpynbItemView {
11627            type Item = TestIpynbItem;
11628
11629            fn for_project_item(
11630                _project: Entity<Project>,
11631                _pane: Option<&Pane>,
11632                _item: Entity<Self::Item>,
11633                _: &mut Window,
11634                cx: &mut Context<Self>,
11635            ) -> Self
11636            where
11637                Self: Sized,
11638            {
11639                Self {
11640                    focus_handle: cx.focus_handle(),
11641                }
11642            }
11643        }
11644
11645        struct TestAlternatePngItemView {
11646            focus_handle: FocusHandle,
11647        }
11648
11649        impl Item for TestAlternatePngItemView {
11650            type Event = ();
11651            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11652                "".into()
11653            }
11654        }
11655
11656        impl EventEmitter<()> for TestAlternatePngItemView {}
11657        impl Focusable for TestAlternatePngItemView {
11658            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11659                self.focus_handle.clone()
11660            }
11661        }
11662
11663        impl Render for TestAlternatePngItemView {
11664            fn render(
11665                &mut self,
11666                _window: &mut Window,
11667                _cx: &mut Context<Self>,
11668            ) -> impl IntoElement {
11669                Empty
11670            }
11671        }
11672
11673        impl ProjectItem for TestAlternatePngItemView {
11674            type Item = TestPngItem;
11675
11676            fn for_project_item(
11677                _project: Entity<Project>,
11678                _pane: Option<&Pane>,
11679                _item: Entity<Self::Item>,
11680                _: &mut Window,
11681                cx: &mut Context<Self>,
11682            ) -> Self
11683            where
11684                Self: Sized,
11685            {
11686                Self {
11687                    focus_handle: cx.focus_handle(),
11688                }
11689            }
11690        }
11691
11692        #[gpui::test]
11693        async fn test_register_project_item(cx: &mut TestAppContext) {
11694            init_test(cx);
11695
11696            cx.update(|cx| {
11697                register_project_item::<TestPngItemView>(cx);
11698                register_project_item::<TestIpynbItemView>(cx);
11699            });
11700
11701            let fs = FakeFs::new(cx.executor());
11702            fs.insert_tree(
11703                "/root1",
11704                json!({
11705                    "one.png": "BINARYDATAHERE",
11706                    "two.ipynb": "{ totally a notebook }",
11707                    "three.txt": "editing text, sure why not?"
11708                }),
11709            )
11710            .await;
11711
11712            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11713            let (workspace, cx) =
11714                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11715
11716            let worktree_id = project.update(cx, |project, cx| {
11717                project.worktrees(cx).next().unwrap().read(cx).id()
11718            });
11719
11720            let handle = workspace
11721                .update_in(cx, |workspace, window, cx| {
11722                    let project_path = (worktree_id, rel_path("one.png"));
11723                    workspace.open_path(project_path, None, true, window, cx)
11724                })
11725                .await
11726                .unwrap();
11727
11728            // Now we can check if the handle we got back errored or not
11729            assert_eq!(
11730                handle.to_any_view().entity_type(),
11731                TypeId::of::<TestPngItemView>()
11732            );
11733
11734            let handle = workspace
11735                .update_in(cx, |workspace, window, cx| {
11736                    let project_path = (worktree_id, rel_path("two.ipynb"));
11737                    workspace.open_path(project_path, None, true, window, cx)
11738                })
11739                .await
11740                .unwrap();
11741
11742            assert_eq!(
11743                handle.to_any_view().entity_type(),
11744                TypeId::of::<TestIpynbItemView>()
11745            );
11746
11747            let handle = workspace
11748                .update_in(cx, |workspace, window, cx| {
11749                    let project_path = (worktree_id, rel_path("three.txt"));
11750                    workspace.open_path(project_path, None, true, window, cx)
11751                })
11752                .await;
11753            assert!(handle.is_err());
11754        }
11755
11756        #[gpui::test]
11757        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11758            init_test(cx);
11759
11760            cx.update(|cx| {
11761                register_project_item::<TestPngItemView>(cx);
11762                register_project_item::<TestAlternatePngItemView>(cx);
11763            });
11764
11765            let fs = FakeFs::new(cx.executor());
11766            fs.insert_tree(
11767                "/root1",
11768                json!({
11769                    "one.png": "BINARYDATAHERE",
11770                    "two.ipynb": "{ totally a notebook }",
11771                    "three.txt": "editing text, sure why not?"
11772                }),
11773            )
11774            .await;
11775            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11776            let (workspace, cx) =
11777                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11778            let worktree_id = project.update(cx, |project, cx| {
11779                project.worktrees(cx).next().unwrap().read(cx).id()
11780            });
11781
11782            let handle = workspace
11783                .update_in(cx, |workspace, window, cx| {
11784                    let project_path = (worktree_id, rel_path("one.png"));
11785                    workspace.open_path(project_path, None, true, window, cx)
11786                })
11787                .await
11788                .unwrap();
11789
11790            // This _must_ be the second item registered
11791            assert_eq!(
11792                handle.to_any_view().entity_type(),
11793                TypeId::of::<TestAlternatePngItemView>()
11794            );
11795
11796            let handle = workspace
11797                .update_in(cx, |workspace, window, cx| {
11798                    let project_path = (worktree_id, rel_path("three.txt"));
11799                    workspace.open_path(project_path, None, true, window, cx)
11800                })
11801                .await;
11802            assert!(handle.is_err());
11803        }
11804    }
11805
11806    #[gpui::test]
11807    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11808        init_test(cx);
11809
11810        let fs = FakeFs::new(cx.executor());
11811        let project = Project::test(fs, [], cx).await;
11812        let (workspace, _cx) =
11813            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11814
11815        // Test with status bar shown (default)
11816        workspace.read_with(cx, |workspace, cx| {
11817            let visible = workspace.status_bar_visible(cx);
11818            assert!(visible, "Status bar should be visible by default");
11819        });
11820
11821        // Test with status bar hidden
11822        cx.update_global(|store: &mut SettingsStore, cx| {
11823            store.update_user_settings(cx, |settings| {
11824                settings.status_bar.get_or_insert_default().show = Some(false);
11825            });
11826        });
11827
11828        workspace.read_with(cx, |workspace, cx| {
11829            let visible = workspace.status_bar_visible(cx);
11830            assert!(!visible, "Status bar should be hidden when show is false");
11831        });
11832
11833        // Test with status bar shown explicitly
11834        cx.update_global(|store: &mut SettingsStore, cx| {
11835            store.update_user_settings(cx, |settings| {
11836                settings.status_bar.get_or_insert_default().show = Some(true);
11837            });
11838        });
11839
11840        workspace.read_with(cx, |workspace, cx| {
11841            let visible = workspace.status_bar_visible(cx);
11842            assert!(visible, "Status bar should be visible when show is true");
11843        });
11844    }
11845
11846    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11847        pane.read(cx)
11848            .items()
11849            .flat_map(|item| {
11850                item.project_paths(cx)
11851                    .into_iter()
11852                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11853            })
11854            .collect()
11855    }
11856
11857    pub fn init_test(cx: &mut TestAppContext) {
11858        cx.update(|cx| {
11859            let settings_store = SettingsStore::test(cx);
11860            cx.set_global(settings_store);
11861            theme::init(theme::LoadThemes::JustBase, cx);
11862        });
11863    }
11864
11865    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11866        let item = TestProjectItem::new(id, path, cx);
11867        item.update(cx, |item, _| {
11868            item.is_dirty = true;
11869        });
11870        item
11871    }
11872}