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::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   84};
   85use remote::{
   86    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   87    remote_client::ConnectionIdentifier,
   88};
   89use schemars::JsonSchema;
   90use serde::Deserialize;
   91use session::AppSession;
   92use settings::{
   93    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   94};
   95use shared_screen::SharedScreen;
   96use sqlez::{
   97    bindable::{Bind, Column, StaticColumnCount},
   98    statement::Statement,
   99};
  100use status_bar::StatusBar;
  101pub use status_bar::StatusItemView;
  102use std::{
  103    any::TypeId,
  104    borrow::Cow,
  105    cell::RefCell,
  106    cmp,
  107    collections::{VecDeque, hash_map::DefaultHasher},
  108    env,
  109    hash::{Hash, Hasher},
  110    path::{Path, PathBuf},
  111    process::ExitStatus,
  112    rc::Rc,
  113    sync::{
  114        Arc, LazyLock, Weak,
  115        atomic::{AtomicBool, AtomicUsize},
  116    },
  117    time::Duration,
  118};
  119use task::{DebugScenario, SpawnInTerminal, TaskContext};
  120use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  121pub use toolbar::{Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView};
  122pub use ui;
  123use ui::{Window, prelude::*};
  124use util::{
  125    ResultExt, TryFutureExt,
  126    paths::{PathStyle, SanitizedPath},
  127    rel_path::RelPath,
  128    serde::default_true,
  129};
  130use uuid::Uuid;
  131pub use workspace_settings::{
  132    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  133    WorkspaceSettings,
  134};
  135use zed_actions::{Spawn, feedback::FileBugReport};
  136
  137use crate::{
  138    item::ItemBufferKind,
  139    notifications::NotificationId,
  140    utility_pane::{UTILITY_PANE_MIN_WIDTH, utility_slot_for_dock_position},
  141};
  142use crate::{
  143    persistence::{
  144        SerializedAxis,
  145        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  146    },
  147    security_modal::SecurityModal,
  148    utility_pane::{DraggedUtilityPane, UtilityPaneFrame, UtilityPaneSlot, UtilityPaneState},
  149};
  150
  151pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  152
  153static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  154    env::var("ZED_WINDOW_SIZE")
  155        .ok()
  156        .as_deref()
  157        .and_then(parse_pixel_size_env_var)
  158});
  159
  160static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  161    env::var("ZED_WINDOW_POSITION")
  162        .ok()
  163        .as_deref()
  164        .and_then(parse_pixel_position_env_var)
  165});
  166
  167pub trait TerminalProvider {
  168    fn spawn(
  169        &self,
  170        task: SpawnInTerminal,
  171        window: &mut Window,
  172        cx: &mut App,
  173    ) -> Task<Option<Result<ExitStatus>>>;
  174}
  175
  176pub trait DebuggerProvider {
  177    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  178    fn start_session(
  179        &self,
  180        definition: DebugScenario,
  181        task_context: TaskContext,
  182        active_buffer: Option<Entity<Buffer>>,
  183        worktree_id: Option<WorktreeId>,
  184        window: &mut Window,
  185        cx: &mut App,
  186    );
  187
  188    fn spawn_task_or_modal(
  189        &self,
  190        workspace: &mut Workspace,
  191        action: &Spawn,
  192        window: &mut Window,
  193        cx: &mut Context<Workspace>,
  194    );
  195
  196    fn task_scheduled(&self, cx: &mut App);
  197    fn debug_scenario_scheduled(&self, cx: &mut App);
  198    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  199
  200    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  201}
  202
  203actions!(
  204    workspace,
  205    [
  206        /// Activates the next pane in the workspace.
  207        ActivateNextPane,
  208        /// Activates the previous pane in the workspace.
  209        ActivatePreviousPane,
  210        /// Switches to the next window.
  211        ActivateNextWindow,
  212        /// Switches to the previous window.
  213        ActivatePreviousWindow,
  214        /// Adds a folder to the current project.
  215        AddFolderToProject,
  216        /// Clears all notifications.
  217        ClearAllNotifications,
  218        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  219        ClearNavigationHistory,
  220        /// Closes the active dock.
  221        CloseActiveDock,
  222        /// Closes all docks.
  223        CloseAllDocks,
  224        /// Toggles all docks.
  225        ToggleAllDocks,
  226        /// Closes the current window.
  227        CloseWindow,
  228        /// Opens the feedback dialog.
  229        Feedback,
  230        /// Follows the next collaborator in the session.
  231        FollowNextCollaborator,
  232        /// Moves the focused panel to the next position.
  233        MoveFocusedPanelToNextPosition,
  234        /// Opens a new terminal in the center.
  235        NewCenterTerminal,
  236        /// Creates a new file.
  237        NewFile,
  238        /// Creates a new file in a vertical split.
  239        NewFileSplitVertical,
  240        /// Creates a new file in a horizontal split.
  241        NewFileSplitHorizontal,
  242        /// Opens a new search.
  243        NewSearch,
  244        /// Opens a new terminal.
  245        NewTerminal,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Zooms in on the active pane.
  285        ZoomIn,
  286        /// Zooms out of the active pane.
  287        ZoomOut,
  288        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  289        /// If the modal is shown already, closes it without trusting any worktree.
  290        ToggleWorktreeSecurity,
  291        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  292        /// Requires restart to take effect on already opened projects.
  293        ClearTrustedWorktrees,
  294        /// Stops following a collaborator.
  295        Unfollow,
  296        /// Restores the banner.
  297        RestoreBanner,
  298        /// Toggles expansion of the selected item.
  299        ToggleExpandItem,
  300    ]
  301);
  302
  303/// Activates a specific pane by its index.
  304#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  305#[action(namespace = workspace)]
  306pub struct ActivatePane(pub usize);
  307
  308/// Moves an item to a specific pane by index.
  309#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  310#[action(namespace = workspace)]
  311#[serde(deny_unknown_fields)]
  312pub struct MoveItemToPane {
  313    #[serde(default = "default_1")]
  314    pub destination: usize,
  315    #[serde(default = "default_true")]
  316    pub focus: bool,
  317    #[serde(default)]
  318    pub clone: bool,
  319}
  320
  321fn default_1() -> usize {
  322    1
  323}
  324
  325/// Moves an item to a pane in the specified direction.
  326#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  327#[action(namespace = workspace)]
  328#[serde(deny_unknown_fields)]
  329pub struct MoveItemToPaneInDirection {
  330    #[serde(default = "default_right")]
  331    pub direction: SplitDirection,
  332    #[serde(default = "default_true")]
  333    pub focus: bool,
  334    #[serde(default)]
  335    pub clone: bool,
  336}
  337
  338/// Creates a new file in a split of the desired direction.
  339#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  340#[action(namespace = workspace)]
  341#[serde(deny_unknown_fields)]
  342pub struct NewFileSplit(pub SplitDirection);
  343
  344fn default_right() -> SplitDirection {
  345    SplitDirection::Right
  346}
  347
  348/// Saves all open files in the workspace.
  349#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  350#[action(namespace = workspace)]
  351#[serde(deny_unknown_fields)]
  352pub struct SaveAll {
  353    #[serde(default)]
  354    pub save_intent: Option<SaveIntent>,
  355}
  356
  357/// Saves the current file with the specified options.
  358#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  359#[action(namespace = workspace)]
  360#[serde(deny_unknown_fields)]
  361pub struct Save {
  362    #[serde(default)]
  363    pub save_intent: Option<SaveIntent>,
  364}
  365
  366/// Closes all items and panes in the workspace.
  367#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  368#[action(namespace = workspace)]
  369#[serde(deny_unknown_fields)]
  370pub struct CloseAllItemsAndPanes {
  371    #[serde(default)]
  372    pub save_intent: Option<SaveIntent>,
  373}
  374
  375/// Closes all inactive tabs and panes in the workspace.
  376#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct CloseInactiveTabsAndPanes {
  380    #[serde(default)]
  381    pub save_intent: Option<SaveIntent>,
  382}
  383
  384/// Sends a sequence of keystrokes to the active element.
  385#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387pub struct SendKeystrokes(pub String);
  388
  389actions!(
  390    project_symbols,
  391    [
  392        /// Toggles the project symbols search.
  393        #[action(name = "Toggle")]
  394        ToggleProjectSymbols
  395    ]
  396);
  397
  398/// Toggles the file finder interface.
  399#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  400#[action(namespace = file_finder, name = "Toggle")]
  401#[serde(deny_unknown_fields)]
  402pub struct ToggleFileFinder {
  403    #[serde(default)]
  404    pub separate_history: bool,
  405}
  406
  407/// Increases size of a currently focused dock by a given amount of pixels.
  408#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct IncreaseActiveDockSize {
  412    /// For 0px parameter, uses UI font size value.
  413    #[serde(default)]
  414    pub px: u32,
  415}
  416
  417/// Decreases size of a currently focused dock by a given amount of pixels.
  418#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct DecreaseActiveDockSize {
  422    /// For 0px parameter, uses UI font size value.
  423    #[serde(default)]
  424    pub px: u32,
  425}
  426
  427/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  428#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  429#[action(namespace = workspace)]
  430#[serde(deny_unknown_fields)]
  431pub struct IncreaseOpenDocksSize {
  432    /// For 0px parameter, uses UI font size value.
  433    #[serde(default)]
  434    pub px: u32,
  435}
  436
  437/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  438#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440#[serde(deny_unknown_fields)]
  441pub struct DecreaseOpenDocksSize {
  442    /// For 0px parameter, uses UI font size value.
  443    #[serde(default)]
  444    pub px: u32,
  445}
  446
  447actions!(
  448    workspace,
  449    [
  450        /// Activates the pane to the left.
  451        ActivatePaneLeft,
  452        /// Activates the pane to the right.
  453        ActivatePaneRight,
  454        /// Activates the pane above.
  455        ActivatePaneUp,
  456        /// Activates the pane below.
  457        ActivatePaneDown,
  458        /// Swaps the current pane with the one to the left.
  459        SwapPaneLeft,
  460        /// Swaps the current pane with the one to the right.
  461        SwapPaneRight,
  462        /// Swaps the current pane with the one above.
  463        SwapPaneUp,
  464        /// Swaps the current pane with the one below.
  465        SwapPaneDown,
  466        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  467        SwapPaneAdjacent,
  468        /// Move the current pane to be at the far left.
  469        MovePaneLeft,
  470        /// Move the current pane to be at the far right.
  471        MovePaneRight,
  472        /// Move the current pane to be at the very top.
  473        MovePaneUp,
  474        /// Move the current pane to be at the very bottom.
  475        MovePaneDown,
  476    ]
  477);
  478
  479#[derive(PartialEq, Eq, Debug)]
  480pub enum CloseIntent {
  481    /// Quit the program entirely.
  482    Quit,
  483    /// Close a window.
  484    CloseWindow,
  485    /// Replace the workspace in an existing window.
  486    ReplaceWindow,
  487}
  488
  489#[derive(Clone)]
  490pub struct Toast {
  491    id: NotificationId,
  492    msg: Cow<'static, str>,
  493    autohide: bool,
  494    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  495}
  496
  497impl Toast {
  498    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  499        Toast {
  500            id,
  501            msg: msg.into(),
  502            on_click: None,
  503            autohide: false,
  504        }
  505    }
  506
  507    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  508    where
  509        M: Into<Cow<'static, str>>,
  510        F: Fn(&mut Window, &mut App) + 'static,
  511    {
  512        self.on_click = Some((message.into(), Arc::new(on_click)));
  513        self
  514    }
  515
  516    pub fn autohide(mut self) -> Self {
  517        self.autohide = true;
  518        self
  519    }
  520}
  521
  522impl PartialEq for Toast {
  523    fn eq(&self, other: &Self) -> bool {
  524        self.id == other.id
  525            && self.msg == other.msg
  526            && self.on_click.is_some() == other.on_click.is_some()
  527    }
  528}
  529
  530/// Opens a new terminal with the specified working directory.
  531#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  532#[action(namespace = workspace)]
  533#[serde(deny_unknown_fields)]
  534pub struct OpenTerminal {
  535    pub working_directory: PathBuf,
  536}
  537
  538#[derive(Clone, Copy, Debug, Default, Hash, PartialEq, Eq, PartialOrd, Ord)]
  539pub struct WorkspaceId(i64);
  540
  541impl StaticColumnCount for WorkspaceId {}
  542impl Bind for WorkspaceId {
  543    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  544        self.0.bind(statement, start_index)
  545    }
  546}
  547impl Column for WorkspaceId {
  548    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  549        i64::column(statement, start_index)
  550            .map(|(i, next_index)| (Self(i), next_index))
  551            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  552    }
  553}
  554impl From<WorkspaceId> for i64 {
  555    fn from(val: WorkspaceId) -> Self {
  556        val.0
  557    }
  558}
  559
  560fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  561    let paths = cx.prompt_for_paths(options);
  562    cx.spawn(
  563        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  564            Ok(Some(paths)) => {
  565                cx.update(|cx| {
  566                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  567                })
  568                .ok();
  569            }
  570            Ok(None) => {}
  571            Err(err) => {
  572                util::log_err(&err);
  573                cx.update(|cx| {
  574                    if let Some(workspace_window) = cx
  575                        .active_window()
  576                        .and_then(|window| window.downcast::<Workspace>())
  577                    {
  578                        workspace_window
  579                            .update(cx, |workspace, _, cx| {
  580                                workspace.show_portal_error(err.to_string(), cx);
  581                            })
  582                            .ok();
  583                    }
  584                })
  585                .ok();
  586            }
  587        },
  588    )
  589    .detach();
  590}
  591
  592pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  593    component::init();
  594    theme_preview::init(cx);
  595    toast_layer::init(cx);
  596    history_manager::init(cx);
  597
  598    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  599        .on_action(|_: &Reload, cx| reload(cx))
  600        .on_action({
  601            let app_state = Arc::downgrade(&app_state);
  602            move |_: &Open, cx: &mut App| {
  603                if let Some(app_state) = app_state.upgrade() {
  604                    prompt_and_open_paths(
  605                        app_state,
  606                        PathPromptOptions {
  607                            files: true,
  608                            directories: true,
  609                            multiple: true,
  610                            prompt: None,
  611                        },
  612                        cx,
  613                    );
  614                }
  615            }
  616        })
  617        .on_action({
  618            let app_state = Arc::downgrade(&app_state);
  619            move |_: &OpenFiles, cx: &mut App| {
  620                let directories = cx.can_select_mixed_files_and_dirs();
  621                if let Some(app_state) = app_state.upgrade() {
  622                    prompt_and_open_paths(
  623                        app_state,
  624                        PathPromptOptions {
  625                            files: true,
  626                            directories,
  627                            multiple: true,
  628                            prompt: None,
  629                        },
  630                        cx,
  631                    );
  632                }
  633            }
  634        });
  635}
  636
  637type BuildProjectItemFn =
  638    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  639
  640type BuildProjectItemForPathFn =
  641    fn(
  642        &Entity<Project>,
  643        &ProjectPath,
  644        &mut Window,
  645        &mut App,
  646    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  647
  648#[derive(Clone, Default)]
  649struct ProjectItemRegistry {
  650    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  651    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  652}
  653
  654impl ProjectItemRegistry {
  655    fn register<T: ProjectItem>(&mut self) {
  656        self.build_project_item_fns_by_type.insert(
  657            TypeId::of::<T::Item>(),
  658            |item, project, pane, window, cx| {
  659                let item = item.downcast().unwrap();
  660                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  661                    as Box<dyn ItemHandle>
  662            },
  663        );
  664        self.build_project_item_for_path_fns
  665            .push(|project, project_path, window, cx| {
  666                let project_path = project_path.clone();
  667                let is_file = project
  668                    .read(cx)
  669                    .entry_for_path(&project_path, cx)
  670                    .is_some_and(|entry| entry.is_file());
  671                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  672                let is_local = project.read(cx).is_local();
  673                let project_item =
  674                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  675                let project = project.clone();
  676                Some(window.spawn(cx, async move |cx| {
  677                    match project_item.await.with_context(|| {
  678                        format!(
  679                            "opening project path {:?}",
  680                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  681                        )
  682                    }) {
  683                        Ok(project_item) => {
  684                            let project_item = project_item;
  685                            let project_entry_id: Option<ProjectEntryId> =
  686                                project_item.read_with(cx, project::ProjectItem::entry_id)?;
  687                            let build_workspace_item = Box::new(
  688                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  689                                    Box::new(cx.new(|cx| {
  690                                        T::for_project_item(
  691                                            project,
  692                                            Some(pane),
  693                                            project_item,
  694                                            window,
  695                                            cx,
  696                                        )
  697                                    })) as Box<dyn ItemHandle>
  698                                },
  699                            ) as Box<_>;
  700                            Ok((project_entry_id, build_workspace_item))
  701                        }
  702                        Err(e) => {
  703                            log::warn!("Failed to open a project item: {e:#}");
  704                            if e.error_code() == ErrorCode::Internal {
  705                                if let Some(abs_path) =
  706                                    entry_abs_path.as_deref().filter(|_| is_file)
  707                                {
  708                                    if let Some(broken_project_item_view) =
  709                                        cx.update(|window, cx| {
  710                                            T::for_broken_project_item(
  711                                                abs_path, is_local, &e, window, cx,
  712                                            )
  713                                        })?
  714                                    {
  715                                        let build_workspace_item = Box::new(
  716                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  717                                                cx.new(|_| broken_project_item_view).boxed_clone()
  718                                            },
  719                                        )
  720                                        as Box<_>;
  721                                        return Ok((None, build_workspace_item));
  722                                    }
  723                                }
  724                            }
  725                            Err(e)
  726                        }
  727                    }
  728                }))
  729            });
  730    }
  731
  732    fn open_path(
  733        &self,
  734        project: &Entity<Project>,
  735        path: &ProjectPath,
  736        window: &mut Window,
  737        cx: &mut App,
  738    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  739        let Some(open_project_item) = self
  740            .build_project_item_for_path_fns
  741            .iter()
  742            .rev()
  743            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  744        else {
  745            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  746        };
  747        open_project_item
  748    }
  749
  750    fn build_item<T: project::ProjectItem>(
  751        &self,
  752        item: Entity<T>,
  753        project: Entity<Project>,
  754        pane: Option<&Pane>,
  755        window: &mut Window,
  756        cx: &mut App,
  757    ) -> Option<Box<dyn ItemHandle>> {
  758        let build = self
  759            .build_project_item_fns_by_type
  760            .get(&TypeId::of::<T>())?;
  761        Some(build(item.into_any(), project, pane, window, cx))
  762    }
  763}
  764
  765type WorkspaceItemBuilder =
  766    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  767
  768impl Global for ProjectItemRegistry {}
  769
  770/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  771/// items will get a chance to open the file, starting from the project item that
  772/// was added last.
  773pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  774    cx.default_global::<ProjectItemRegistry>().register::<I>();
  775}
  776
  777#[derive(Default)]
  778pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  779
  780struct FollowableViewDescriptor {
  781    from_state_proto: fn(
  782        Entity<Workspace>,
  783        ViewId,
  784        &mut Option<proto::view::Variant>,
  785        &mut Window,
  786        &mut App,
  787    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  788    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  789}
  790
  791impl Global for FollowableViewRegistry {}
  792
  793impl FollowableViewRegistry {
  794    pub fn register<I: FollowableItem>(cx: &mut App) {
  795        cx.default_global::<Self>().0.insert(
  796            TypeId::of::<I>(),
  797            FollowableViewDescriptor {
  798                from_state_proto: |workspace, id, state, window, cx| {
  799                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  800                        cx.foreground_executor()
  801                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  802                    })
  803                },
  804                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  805            },
  806        );
  807    }
  808
  809    pub fn from_state_proto(
  810        workspace: Entity<Workspace>,
  811        view_id: ViewId,
  812        mut state: Option<proto::view::Variant>,
  813        window: &mut Window,
  814        cx: &mut App,
  815    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  816        cx.update_default_global(|this: &mut Self, cx| {
  817            this.0.values().find_map(|descriptor| {
  818                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  819            })
  820        })
  821    }
  822
  823    pub fn to_followable_view(
  824        view: impl Into<AnyView>,
  825        cx: &App,
  826    ) -> Option<Box<dyn FollowableItemHandle>> {
  827        let this = cx.try_global::<Self>()?;
  828        let view = view.into();
  829        let descriptor = this.0.get(&view.entity_type())?;
  830        Some((descriptor.to_followable_view)(&view))
  831    }
  832}
  833
  834#[derive(Copy, Clone)]
  835struct SerializableItemDescriptor {
  836    deserialize: fn(
  837        Entity<Project>,
  838        WeakEntity<Workspace>,
  839        WorkspaceId,
  840        ItemId,
  841        &mut Window,
  842        &mut Context<Pane>,
  843    ) -> Task<Result<Box<dyn ItemHandle>>>,
  844    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  845    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  846}
  847
  848#[derive(Default)]
  849struct SerializableItemRegistry {
  850    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  851    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  852}
  853
  854impl Global for SerializableItemRegistry {}
  855
  856impl SerializableItemRegistry {
  857    fn deserialize(
  858        item_kind: &str,
  859        project: Entity<Project>,
  860        workspace: WeakEntity<Workspace>,
  861        workspace_id: WorkspaceId,
  862        item_item: ItemId,
  863        window: &mut Window,
  864        cx: &mut Context<Pane>,
  865    ) -> Task<Result<Box<dyn ItemHandle>>> {
  866        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  867            return Task::ready(Err(anyhow!(
  868                "cannot deserialize {}, descriptor not found",
  869                item_kind
  870            )));
  871        };
  872
  873        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  874    }
  875
  876    fn cleanup(
  877        item_kind: &str,
  878        workspace_id: WorkspaceId,
  879        loaded_items: Vec<ItemId>,
  880        window: &mut Window,
  881        cx: &mut App,
  882    ) -> Task<Result<()>> {
  883        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  884            return Task::ready(Err(anyhow!(
  885                "cannot cleanup {}, descriptor not found",
  886                item_kind
  887            )));
  888        };
  889
  890        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  891    }
  892
  893    fn view_to_serializable_item_handle(
  894        view: AnyView,
  895        cx: &App,
  896    ) -> Option<Box<dyn SerializableItemHandle>> {
  897        let this = cx.try_global::<Self>()?;
  898        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  899        Some((descriptor.view_to_serializable_item)(view))
  900    }
  901
  902    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  903        let this = cx.try_global::<Self>()?;
  904        this.descriptors_by_kind.get(item_kind).copied()
  905    }
  906}
  907
  908pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  909    let serialized_item_kind = I::serialized_item_kind();
  910
  911    let registry = cx.default_global::<SerializableItemRegistry>();
  912    let descriptor = SerializableItemDescriptor {
  913        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  914            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  915            cx.foreground_executor()
  916                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  917        },
  918        cleanup: |workspace_id, loaded_items, window, cx| {
  919            I::cleanup(workspace_id, loaded_items, window, cx)
  920        },
  921        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  922    };
  923    registry
  924        .descriptors_by_kind
  925        .insert(Arc::from(serialized_item_kind), descriptor);
  926    registry
  927        .descriptors_by_type
  928        .insert(TypeId::of::<I>(), descriptor);
  929}
  930
  931pub struct AppState {
  932    pub languages: Arc<LanguageRegistry>,
  933    pub client: Arc<Client>,
  934    pub user_store: Entity<UserStore>,
  935    pub workspace_store: Entity<WorkspaceStore>,
  936    pub fs: Arc<dyn fs::Fs>,
  937    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  938    pub node_runtime: NodeRuntime,
  939    pub session: Entity<AppSession>,
  940}
  941
  942struct GlobalAppState(Weak<AppState>);
  943
  944impl Global for GlobalAppState {}
  945
  946pub struct WorkspaceStore {
  947    workspaces: HashSet<WindowHandle<Workspace>>,
  948    client: Arc<Client>,
  949    _subscriptions: Vec<client::Subscription>,
  950}
  951
  952#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
  953pub enum CollaboratorId {
  954    PeerId(PeerId),
  955    Agent,
  956}
  957
  958impl From<PeerId> for CollaboratorId {
  959    fn from(peer_id: PeerId) -> Self {
  960        CollaboratorId::PeerId(peer_id)
  961    }
  962}
  963
  964impl From<&PeerId> for CollaboratorId {
  965    fn from(peer_id: &PeerId) -> Self {
  966        CollaboratorId::PeerId(*peer_id)
  967    }
  968}
  969
  970#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
  971struct Follower {
  972    project_id: Option<u64>,
  973    peer_id: PeerId,
  974}
  975
  976impl AppState {
  977    #[track_caller]
  978    pub fn global(cx: &App) -> Weak<Self> {
  979        cx.global::<GlobalAppState>().0.clone()
  980    }
  981    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
  982        cx.try_global::<GlobalAppState>()
  983            .map(|state| state.0.clone())
  984    }
  985    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
  986        cx.set_global(GlobalAppState(state));
  987    }
  988
  989    #[cfg(any(test, feature = "test-support"))]
  990    pub fn test(cx: &mut App) -> Arc<Self> {
  991        use fs::Fs;
  992        use node_runtime::NodeRuntime;
  993        use session::Session;
  994        use settings::SettingsStore;
  995
  996        if !cx.has_global::<SettingsStore>() {
  997            let settings_store = SettingsStore::test(cx);
  998            cx.set_global(settings_store);
  999        }
 1000
 1001        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1002        <dyn Fs>::set_global(fs.clone(), cx);
 1003        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1004        let clock = Arc::new(clock::FakeSystemClock::new());
 1005        let http_client = http_client::FakeHttpClient::with_404_response();
 1006        let client = Client::new(clock, http_client, cx);
 1007        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1008        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1009        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1010
 1011        theme::init(theme::LoadThemes::JustBase, cx);
 1012        client::init(&client, cx);
 1013
 1014        Arc::new(Self {
 1015            client,
 1016            fs,
 1017            languages,
 1018            user_store,
 1019            workspace_store,
 1020            node_runtime: NodeRuntime::unavailable(),
 1021            build_window_options: |_, _| Default::default(),
 1022            session,
 1023        })
 1024    }
 1025}
 1026
 1027struct DelayedDebouncedEditAction {
 1028    task: Option<Task<()>>,
 1029    cancel_channel: Option<oneshot::Sender<()>>,
 1030}
 1031
 1032impl DelayedDebouncedEditAction {
 1033    fn new() -> DelayedDebouncedEditAction {
 1034        DelayedDebouncedEditAction {
 1035            task: None,
 1036            cancel_channel: None,
 1037        }
 1038    }
 1039
 1040    fn fire_new<F>(
 1041        &mut self,
 1042        delay: Duration,
 1043        window: &mut Window,
 1044        cx: &mut Context<Workspace>,
 1045        func: F,
 1046    ) where
 1047        F: 'static
 1048            + Send
 1049            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1050    {
 1051        if let Some(channel) = self.cancel_channel.take() {
 1052            _ = channel.send(());
 1053        }
 1054
 1055        let (sender, mut receiver) = oneshot::channel::<()>();
 1056        self.cancel_channel = Some(sender);
 1057
 1058        let previous_task = self.task.take();
 1059        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1060            let mut timer = cx.background_executor().timer(delay).fuse();
 1061            if let Some(previous_task) = previous_task {
 1062                previous_task.await;
 1063            }
 1064
 1065            futures::select_biased! {
 1066                _ = receiver => return,
 1067                    _ = timer => {}
 1068            }
 1069
 1070            if let Some(result) = workspace
 1071                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1072                .log_err()
 1073            {
 1074                result.await.log_err();
 1075            }
 1076        }));
 1077    }
 1078}
 1079
 1080pub enum Event {
 1081    PaneAdded(Entity<Pane>),
 1082    PaneRemoved,
 1083    ItemAdded {
 1084        item: Box<dyn ItemHandle>,
 1085    },
 1086    ActiveItemChanged,
 1087    ItemRemoved {
 1088        item_id: EntityId,
 1089    },
 1090    UserSavedItem {
 1091        pane: WeakEntity<Pane>,
 1092        item: Box<dyn WeakItemHandle>,
 1093        save_intent: SaveIntent,
 1094    },
 1095    ContactRequestedJoin(u64),
 1096    WorkspaceCreated(WeakEntity<Workspace>),
 1097    OpenBundledFile {
 1098        text: Cow<'static, str>,
 1099        title: &'static str,
 1100        language: &'static str,
 1101    },
 1102    ZoomChanged,
 1103    ModalOpened,
 1104}
 1105
 1106#[derive(Debug)]
 1107pub enum OpenVisible {
 1108    All,
 1109    None,
 1110    OnlyFiles,
 1111    OnlyDirectories,
 1112}
 1113
 1114enum WorkspaceLocation {
 1115    // Valid local paths or SSH project to serialize
 1116    Location(SerializedWorkspaceLocation, PathList),
 1117    // No valid location found hence clear session id
 1118    DetachFromSession,
 1119    // No valid location found to serialize
 1120    None,
 1121}
 1122
 1123type PromptForNewPath = Box<
 1124    dyn Fn(
 1125        &mut Workspace,
 1126        DirectoryLister,
 1127        &mut Window,
 1128        &mut Context<Workspace>,
 1129    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1130>;
 1131
 1132type PromptForOpenPath = Box<
 1133    dyn Fn(
 1134        &mut Workspace,
 1135        DirectoryLister,
 1136        &mut Window,
 1137        &mut Context<Workspace>,
 1138    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1139>;
 1140
 1141#[derive(Default)]
 1142struct DispatchingKeystrokes {
 1143    dispatched: HashSet<Vec<Keystroke>>,
 1144    queue: VecDeque<Keystroke>,
 1145    task: Option<Shared<Task<()>>>,
 1146}
 1147
 1148/// Collects everything project-related for a certain window opened.
 1149/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1150///
 1151/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1152/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1153/// that can be used to register a global action to be triggered from any place in the window.
 1154pub struct Workspace {
 1155    weak_self: WeakEntity<Self>,
 1156    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1157    zoomed: Option<AnyWeakView>,
 1158    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1159    zoomed_position: Option<DockPosition>,
 1160    center: PaneGroup,
 1161    left_dock: Entity<Dock>,
 1162    bottom_dock: Entity<Dock>,
 1163    right_dock: Entity<Dock>,
 1164    panes: Vec<Entity<Pane>>,
 1165    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1166    active_pane: Entity<Pane>,
 1167    last_active_center_pane: Option<WeakEntity<Pane>>,
 1168    last_active_view_id: Option<proto::ViewId>,
 1169    status_bar: Entity<StatusBar>,
 1170    modal_layer: Entity<ModalLayer>,
 1171    toast_layer: Entity<ToastLayer>,
 1172    titlebar_item: Option<AnyView>,
 1173    notifications: Notifications,
 1174    suppressed_notifications: HashSet<NotificationId>,
 1175    project: Entity<Project>,
 1176    follower_states: HashMap<CollaboratorId, FollowerState>,
 1177    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1178    window_edited: bool,
 1179    last_window_title: Option<String>,
 1180    dirty_items: HashMap<EntityId, Subscription>,
 1181    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1182    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1183    database_id: Option<WorkspaceId>,
 1184    app_state: Arc<AppState>,
 1185    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1186    _subscriptions: Vec<Subscription>,
 1187    _apply_leader_updates: Task<Result<()>>,
 1188    _observe_current_user: Task<Result<()>>,
 1189    _schedule_serialize_workspace: Option<Task<()>>,
 1190    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1191    _schedule_serialize_worktree_trust: Task<()>,
 1192    pane_history_timestamp: Arc<AtomicUsize>,
 1193    bounds: Bounds<Pixels>,
 1194    pub centered_layout: bool,
 1195    bounds_save_task_queued: Option<Task<()>>,
 1196    on_prompt_for_new_path: Option<PromptForNewPath>,
 1197    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1198    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1199    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1200    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1201    _items_serializer: Task<Result<()>>,
 1202    session_id: Option<String>,
 1203    scheduled_tasks: Vec<Task<()>>,
 1204    last_open_dock_positions: Vec<DockPosition>,
 1205    removing: bool,
 1206    utility_panes: UtilityPaneState,
 1207    next_modal_placement: Option<ModalPlacement>,
 1208}
 1209
 1210impl EventEmitter<Event> for Workspace {}
 1211
 1212#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1213pub struct ViewId {
 1214    pub creator: CollaboratorId,
 1215    pub id: u64,
 1216}
 1217
 1218pub struct FollowerState {
 1219    center_pane: Entity<Pane>,
 1220    dock_pane: Option<Entity<Pane>>,
 1221    active_view_id: Option<ViewId>,
 1222    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1223}
 1224
 1225struct FollowerView {
 1226    view: Box<dyn FollowableItemHandle>,
 1227    location: Option<proto::PanelId>,
 1228}
 1229
 1230impl Workspace {
 1231    pub fn new(
 1232        workspace_id: Option<WorkspaceId>,
 1233        project: Entity<Project>,
 1234        app_state: Arc<AppState>,
 1235        window: &mut Window,
 1236        cx: &mut Context<Self>,
 1237    ) -> Self {
 1238        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1239            cx.subscribe(&trusted_worktrees, |workspace, worktrees_store, e, cx| {
 1240                if let TrustedWorktreesEvent::Trusted(..) = e {
 1241                    // Do not persist auto trusted worktrees
 1242                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1243                        let new_trusted_worktrees =
 1244                            worktrees_store.update(cx, |worktrees_store, cx| {
 1245                                worktrees_store.trusted_paths_for_serialization(cx)
 1246                            });
 1247                        let timeout = cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1248                        workspace._schedule_serialize_worktree_trust =
 1249                            cx.background_spawn(async move {
 1250                                timeout.await;
 1251                                persistence::DB
 1252                                    .save_trusted_worktrees(new_trusted_worktrees)
 1253                                    .await
 1254                                    .log_err();
 1255                            });
 1256                    }
 1257                }
 1258            })
 1259            .detach();
 1260
 1261            cx.observe_global::<SettingsStore>(|_, cx| {
 1262                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1263                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1264                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1265                            trusted_worktrees.auto_trust_all(cx);
 1266                        })
 1267                    }
 1268                }
 1269            })
 1270            .detach();
 1271        }
 1272
 1273        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1274            match event {
 1275                project::Event::RemoteIdChanged(_) => {
 1276                    this.update_window_title(window, cx);
 1277                }
 1278
 1279                project::Event::CollaboratorLeft(peer_id) => {
 1280                    this.collaborator_left(*peer_id, window, cx);
 1281                }
 1282
 1283                project::Event::WorktreeUpdatedEntries(worktree_id, _) => {
 1284                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1285                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1286                            trusted_worktrees.can_trust_local_worktree(*worktree_id, cx);
 1287                        });
 1288                    }
 1289                }
 1290
 1291                project::Event::WorktreeRemoved(_) => {
 1292                    this.update_worktree_data(window, cx);
 1293                }
 1294
 1295                project::Event::WorktreeAdded(worktree_id) => {
 1296                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1297                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1298                            trusted_worktrees.can_trust_local_worktree(*worktree_id, cx);
 1299                        });
 1300                    }
 1301                    this.update_worktree_data(window, cx);
 1302                }
 1303
 1304                project::Event::DisconnectedFromHost => {
 1305                    this.update_window_edited(window, cx);
 1306                    let leaders_to_unfollow =
 1307                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1308                    for leader_id in leaders_to_unfollow {
 1309                        this.unfollow(leader_id, window, cx);
 1310                    }
 1311                }
 1312
 1313                project::Event::DisconnectedFromSshRemote => {
 1314                    this.update_window_edited(window, cx);
 1315                }
 1316
 1317                project::Event::Closed => {
 1318                    window.remove_window();
 1319                }
 1320
 1321                project::Event::DeletedEntry(_, entry_id) => {
 1322                    for pane in this.panes.iter() {
 1323                        pane.update(cx, |pane, cx| {
 1324                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1325                        });
 1326                    }
 1327                }
 1328
 1329                project::Event::Toast {
 1330                    notification_id,
 1331                    message,
 1332                } => this.show_notification(
 1333                    NotificationId::named(notification_id.clone()),
 1334                    cx,
 1335                    |cx| cx.new(|cx| MessageNotification::new(message.clone(), cx)),
 1336                ),
 1337
 1338                project::Event::HideToast { notification_id } => {
 1339                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1340                }
 1341
 1342                project::Event::LanguageServerPrompt(request) => {
 1343                    struct LanguageServerPrompt;
 1344
 1345                    let mut hasher = DefaultHasher::new();
 1346                    request.lsp_name.as_str().hash(&mut hasher);
 1347                    let id = hasher.finish();
 1348
 1349                    this.show_notification(
 1350                        NotificationId::composite::<LanguageServerPrompt>(id as usize),
 1351                        cx,
 1352                        |cx| {
 1353                            cx.new(|cx| {
 1354                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1355                            })
 1356                        },
 1357                    );
 1358                }
 1359
 1360                project::Event::AgentLocationChanged => {
 1361                    this.handle_agent_location_changed(window, cx)
 1362                }
 1363
 1364                _ => {}
 1365            }
 1366            cx.notify()
 1367        })
 1368        .detach();
 1369
 1370        cx.subscribe_in(
 1371            &project.read(cx).breakpoint_store(),
 1372            window,
 1373            |workspace, _, event, window, cx| match event {
 1374                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1375                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1376                    workspace.serialize_workspace(window, cx);
 1377                }
 1378                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1379            },
 1380        )
 1381        .detach();
 1382        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1383            cx.subscribe_in(
 1384                &toolchain_store,
 1385                window,
 1386                |workspace, _, event, window, cx| match event {
 1387                    ToolchainStoreEvent::CustomToolchainsModified => {
 1388                        workspace.serialize_workspace(window, cx);
 1389                    }
 1390                    _ => {}
 1391                },
 1392            )
 1393            .detach();
 1394        }
 1395
 1396        cx.on_focus_lost(window, |this, window, cx| {
 1397            let focus_handle = this.focus_handle(cx);
 1398            window.focus(&focus_handle, cx);
 1399        })
 1400        .detach();
 1401
 1402        let weak_handle = cx.entity().downgrade();
 1403        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1404
 1405        let center_pane = cx.new(|cx| {
 1406            let mut center_pane = Pane::new(
 1407                weak_handle.clone(),
 1408                project.clone(),
 1409                pane_history_timestamp.clone(),
 1410                None,
 1411                NewFile.boxed_clone(),
 1412                true,
 1413                window,
 1414                cx,
 1415            );
 1416            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1417            center_pane
 1418        });
 1419        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1420            .detach();
 1421
 1422        window.focus(&center_pane.focus_handle(cx), cx);
 1423
 1424        cx.emit(Event::PaneAdded(center_pane.clone()));
 1425
 1426        let window_handle = window.window_handle().downcast::<Workspace>().unwrap();
 1427        app_state.workspace_store.update(cx, |store, _| {
 1428            store.workspaces.insert(window_handle);
 1429        });
 1430
 1431        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1432        let mut connection_status = app_state.client.status();
 1433        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1434            current_user.next().await;
 1435            connection_status.next().await;
 1436            let mut stream =
 1437                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1438
 1439            while stream.recv().await.is_some() {
 1440                this.update(cx, |_, cx| cx.notify())?;
 1441            }
 1442            anyhow::Ok(())
 1443        });
 1444
 1445        // All leader updates are enqueued and then processed in a single task, so
 1446        // that each asynchronous operation can be run in order.
 1447        let (leader_updates_tx, mut leader_updates_rx) =
 1448            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1449        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1450            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1451                Self::process_leader_update(&this, leader_id, update, cx)
 1452                    .await
 1453                    .log_err();
 1454            }
 1455
 1456            Ok(())
 1457        });
 1458
 1459        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1460        let modal_layer = cx.new(|_| ModalLayer::new());
 1461        let toast_layer = cx.new(|_| ToastLayer::new());
 1462        cx.subscribe(
 1463            &modal_layer,
 1464            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1465                cx.emit(Event::ModalOpened);
 1466            },
 1467        )
 1468        .detach();
 1469
 1470        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1471        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1472        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1473        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1474        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1475        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1476        let status_bar = cx.new(|cx| {
 1477            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1478            status_bar.add_left_item(left_dock_buttons, window, cx);
 1479            status_bar.add_right_item(right_dock_buttons, window, cx);
 1480            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1481            status_bar
 1482        });
 1483
 1484        let session_id = app_state.session.read(cx).id().to_owned();
 1485
 1486        let mut active_call = None;
 1487        if let Some(call) = ActiveCall::try_global(cx) {
 1488            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1489            active_call = Some((call, subscriptions));
 1490        }
 1491
 1492        let (serializable_items_tx, serializable_items_rx) =
 1493            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1494        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1495            Self::serialize_items(&this, serializable_items_rx, cx).await
 1496        });
 1497
 1498        let subscriptions = vec![
 1499            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1500            cx.observe_window_bounds(window, move |this, window, cx| {
 1501                if this.bounds_save_task_queued.is_some() {
 1502                    return;
 1503                }
 1504                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1505                    cx.background_executor()
 1506                        .timer(Duration::from_millis(100))
 1507                        .await;
 1508                    this.update_in(cx, |this, window, cx| {
 1509                        if let Some(display) = window.display(cx)
 1510                            && let Ok(display_uuid) = display.uuid()
 1511                        {
 1512                            let window_bounds = window.inner_window_bounds();
 1513                            let has_paths = !this.root_paths(cx).is_empty();
 1514                            if !has_paths {
 1515                                cx.background_executor()
 1516                                    .spawn(persistence::write_default_window_bounds(
 1517                                        window_bounds,
 1518                                        display_uuid,
 1519                                    ))
 1520                                    .detach_and_log_err(cx);
 1521                            }
 1522                            if let Some(database_id) = workspace_id {
 1523                                cx.background_executor()
 1524                                    .spawn(DB.set_window_open_status(
 1525                                        database_id,
 1526                                        SerializedWindowBounds(window_bounds),
 1527                                        display_uuid,
 1528                                    ))
 1529                                    .detach_and_log_err(cx);
 1530                            } else {
 1531                                cx.background_executor()
 1532                                    .spawn(persistence::write_default_window_bounds(
 1533                                        window_bounds,
 1534                                        display_uuid,
 1535                                    ))
 1536                                    .detach_and_log_err(cx);
 1537                            }
 1538                        }
 1539                        this.bounds_save_task_queued.take();
 1540                    })
 1541                    .ok();
 1542                }));
 1543                cx.notify();
 1544            }),
 1545            cx.observe_window_appearance(window, |_, window, cx| {
 1546                let window_appearance = window.appearance();
 1547
 1548                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1549
 1550                GlobalTheme::reload_theme(cx);
 1551                GlobalTheme::reload_icon_theme(cx);
 1552            }),
 1553            cx.on_release(move |this, cx| {
 1554                this.app_state.workspace_store.update(cx, move |store, _| {
 1555                    store.workspaces.remove(&window_handle);
 1556                })
 1557            }),
 1558        ];
 1559
 1560        cx.defer_in(window, move |this, window, cx| {
 1561            this.update_window_title(window, cx);
 1562            this.show_initial_notifications(cx);
 1563        });
 1564
 1565        let mut center = PaneGroup::new(center_pane.clone());
 1566        center.set_is_center(true);
 1567        center.mark_positions(cx);
 1568
 1569        Workspace {
 1570            weak_self: weak_handle.clone(),
 1571            zoomed: None,
 1572            zoomed_position: None,
 1573            previous_dock_drag_coordinates: None,
 1574            center,
 1575            panes: vec![center_pane.clone()],
 1576            panes_by_item: Default::default(),
 1577            active_pane: center_pane.clone(),
 1578            last_active_center_pane: Some(center_pane.downgrade()),
 1579            last_active_view_id: None,
 1580            status_bar,
 1581            modal_layer,
 1582            toast_layer,
 1583            titlebar_item: None,
 1584            notifications: Notifications::default(),
 1585            suppressed_notifications: HashSet::default(),
 1586            left_dock,
 1587            bottom_dock,
 1588            right_dock,
 1589            project: project.clone(),
 1590            follower_states: Default::default(),
 1591            last_leaders_by_pane: Default::default(),
 1592            dispatching_keystrokes: Default::default(),
 1593            window_edited: false,
 1594            last_window_title: None,
 1595            dirty_items: Default::default(),
 1596            active_call,
 1597            database_id: workspace_id,
 1598            app_state,
 1599            _observe_current_user,
 1600            _apply_leader_updates,
 1601            _schedule_serialize_workspace: None,
 1602            _schedule_serialize_ssh_paths: None,
 1603            _schedule_serialize_worktree_trust: Task::ready(()),
 1604            leader_updates_tx,
 1605            _subscriptions: subscriptions,
 1606            pane_history_timestamp,
 1607            workspace_actions: Default::default(),
 1608            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1609            bounds: Default::default(),
 1610            centered_layout: false,
 1611            bounds_save_task_queued: None,
 1612            on_prompt_for_new_path: None,
 1613            on_prompt_for_open_path: None,
 1614            terminal_provider: None,
 1615            debugger_provider: None,
 1616            serializable_items_tx,
 1617            _items_serializer,
 1618            session_id: Some(session_id),
 1619
 1620            scheduled_tasks: Vec::new(),
 1621            last_open_dock_positions: Vec::new(),
 1622            removing: false,
 1623            utility_panes: UtilityPaneState::default(),
 1624            next_modal_placement: None,
 1625        }
 1626    }
 1627
 1628    pub fn new_local(
 1629        abs_paths: Vec<PathBuf>,
 1630        app_state: Arc<AppState>,
 1631        requesting_window: Option<WindowHandle<Workspace>>,
 1632        env: Option<HashMap<String, String>>,
 1633        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1634        cx: &mut App,
 1635    ) -> Task<
 1636        anyhow::Result<(
 1637            WindowHandle<Workspace>,
 1638            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1639        )>,
 1640    > {
 1641        let project_handle = Project::local(
 1642            app_state.client.clone(),
 1643            app_state.node_runtime.clone(),
 1644            app_state.user_store.clone(),
 1645            app_state.languages.clone(),
 1646            app_state.fs.clone(),
 1647            env,
 1648            true,
 1649            cx,
 1650        );
 1651
 1652        cx.spawn(async move |cx| {
 1653            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1654            for path in abs_paths.into_iter() {
 1655                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1656                    paths_to_open.push(canonical)
 1657                } else {
 1658                    paths_to_open.push(path)
 1659                }
 1660            }
 1661
 1662            let serialized_workspace =
 1663                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1664
 1665            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1666                paths_to_open = paths.ordered_paths().cloned().collect();
 1667                if !paths.is_lexicographically_ordered() {
 1668                    project_handle
 1669                        .update(cx, |project, cx| {
 1670                            project.set_worktrees_reordered(true, cx);
 1671                        })
 1672                        .log_err();
 1673                }
 1674            }
 1675
 1676            // Get project paths for all of the abs_paths
 1677            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1678                Vec::with_capacity(paths_to_open.len());
 1679
 1680            for path in paths_to_open.into_iter() {
 1681                if let Some((_, project_entry)) = cx
 1682                    .update(|cx| {
 1683                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1684                    })?
 1685                    .await
 1686                    .log_err()
 1687                {
 1688                    project_paths.push((path, Some(project_entry)));
 1689                } else {
 1690                    project_paths.push((path, None));
 1691                }
 1692            }
 1693
 1694            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1695                serialized_workspace.id
 1696            } else {
 1697                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1698            };
 1699
 1700            let toolchains = DB.toolchains(workspace_id).await?;
 1701
 1702            for (toolchain, worktree_path, path) in toolchains {
 1703                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1704                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1705                    this.find_worktree(&worktree_path, cx)
 1706                        .and_then(|(worktree, rel_path)| {
 1707                            if rel_path.is_empty() {
 1708                                Some(worktree.read(cx).id())
 1709                            } else {
 1710                                None
 1711                            }
 1712                        })
 1713                })?
 1714                else {
 1715                    // We did not find a worktree with a given path, but that's whatever.
 1716                    continue;
 1717                };
 1718                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1719                    continue;
 1720                }
 1721
 1722                project_handle
 1723                    .update(cx, |this, cx| {
 1724                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1725                    })?
 1726                    .await;
 1727            }
 1728            if let Some(workspace) = serialized_workspace.as_ref() {
 1729                project_handle.update(cx, |this, cx| {
 1730                    for (scope, toolchains) in &workspace.user_toolchains {
 1731                        for toolchain in toolchains {
 1732                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1733                        }
 1734                    }
 1735                })?;
 1736            }
 1737
 1738            let window = if let Some(window) = requesting_window {
 1739                let centered_layout = serialized_workspace
 1740                    .as_ref()
 1741                    .map(|w| w.centered_layout)
 1742                    .unwrap_or(false);
 1743
 1744                cx.update_window(window.into(), |_, window, cx| {
 1745                    window.replace_root(cx, |window, cx| {
 1746                        let mut workspace = Workspace::new(
 1747                            Some(workspace_id),
 1748                            project_handle.clone(),
 1749                            app_state.clone(),
 1750                            window,
 1751                            cx,
 1752                        );
 1753
 1754                        workspace.centered_layout = centered_layout;
 1755
 1756                        // Call init callback to add items before window renders
 1757                        if let Some(init) = init {
 1758                            init(&mut workspace, window, cx);
 1759                        }
 1760
 1761                        workspace
 1762                    });
 1763                })?;
 1764                window
 1765            } else {
 1766                let window_bounds_override = window_bounds_env_override();
 1767
 1768                let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1769                    (Some(WindowBounds::Windowed(bounds)), None)
 1770                } else if let Some(workspace) = serialized_workspace.as_ref()
 1771                    && let Some(display) = workspace.display
 1772                    && let Some(bounds) = workspace.window_bounds.as_ref()
 1773                {
 1774                    // Reopening an existing workspace - restore its saved bounds
 1775                    (Some(bounds.0), Some(display))
 1776                } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 1777                    // New or empty workspace - use the last known window bounds
 1778                    (Some(bounds), Some(display))
 1779                } else {
 1780                    // New window - let GPUI's default_bounds() handle cascading
 1781                    (None, None)
 1782                };
 1783
 1784                // Use the serialized workspace to construct the new window
 1785                let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx))?;
 1786                options.window_bounds = window_bounds;
 1787                let centered_layout = serialized_workspace
 1788                    .as_ref()
 1789                    .map(|w| w.centered_layout)
 1790                    .unwrap_or(false);
 1791                cx.open_window(options, {
 1792                    let app_state = app_state.clone();
 1793                    let project_handle = project_handle.clone();
 1794                    move |window, cx| {
 1795                        cx.new(|cx| {
 1796                            let mut workspace = Workspace::new(
 1797                                Some(workspace_id),
 1798                                project_handle,
 1799                                app_state,
 1800                                window,
 1801                                cx,
 1802                            );
 1803                            workspace.centered_layout = centered_layout;
 1804
 1805                            // Call init callback to add items before window renders
 1806                            if let Some(init) = init {
 1807                                init(&mut workspace, window, cx);
 1808                            }
 1809
 1810                            workspace
 1811                        })
 1812                    }
 1813                })?
 1814            };
 1815
 1816            notify_if_database_failed(window, cx);
 1817            let opened_items = window
 1818                .update(cx, |_workspace, window, cx| {
 1819                    open_items(serialized_workspace, project_paths, window, cx)
 1820                })?
 1821                .await
 1822                .unwrap_or_default();
 1823
 1824            window
 1825                .update(cx, |workspace, window, cx| {
 1826                    window.activate_window();
 1827                    workspace.update_history(cx);
 1828                })
 1829                .log_err();
 1830            Ok((window, opened_items))
 1831        })
 1832    }
 1833
 1834    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1835        self.weak_self.clone()
 1836    }
 1837
 1838    pub fn left_dock(&self) -> &Entity<Dock> {
 1839        &self.left_dock
 1840    }
 1841
 1842    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1843        &self.bottom_dock
 1844    }
 1845
 1846    pub fn set_bottom_dock_layout(
 1847        &mut self,
 1848        layout: BottomDockLayout,
 1849        window: &mut Window,
 1850        cx: &mut Context<Self>,
 1851    ) {
 1852        let fs = self.project().read(cx).fs();
 1853        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1854            content.workspace.bottom_dock_layout = Some(layout);
 1855        });
 1856
 1857        cx.notify();
 1858        self.serialize_workspace(window, cx);
 1859    }
 1860
 1861    pub fn right_dock(&self) -> &Entity<Dock> {
 1862        &self.right_dock
 1863    }
 1864
 1865    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1866        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1867    }
 1868
 1869    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1870        match position {
 1871            DockPosition::Left => &self.left_dock,
 1872            DockPosition::Bottom => &self.bottom_dock,
 1873            DockPosition::Right => &self.right_dock,
 1874        }
 1875    }
 1876
 1877    pub fn is_edited(&self) -> bool {
 1878        self.window_edited
 1879    }
 1880
 1881    pub fn add_panel<T: Panel>(
 1882        &mut self,
 1883        panel: Entity<T>,
 1884        window: &mut Window,
 1885        cx: &mut Context<Self>,
 1886    ) {
 1887        let focus_handle = panel.panel_focus_handle(cx);
 1888        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 1889            .detach();
 1890
 1891        let dock_position = panel.position(window, cx);
 1892        let dock = self.dock_at_position(dock_position);
 1893
 1894        dock.update(cx, |dock, cx| {
 1895            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 1896        });
 1897    }
 1898
 1899    pub fn remove_panel<T: Panel>(
 1900        &mut self,
 1901        panel: &Entity<T>,
 1902        window: &mut Window,
 1903        cx: &mut Context<Self>,
 1904    ) {
 1905        let mut found_in_dock = None;
 1906        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 1907            let found = dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 1908
 1909            if found {
 1910                found_in_dock = Some(dock.clone());
 1911            }
 1912        }
 1913        if let Some(found_in_dock) = found_in_dock {
 1914            let position = found_in_dock.read(cx).position();
 1915            let slot = utility_slot_for_dock_position(position);
 1916            self.clear_utility_pane_if_provider(slot, Entity::entity_id(panel), cx);
 1917        }
 1918    }
 1919
 1920    pub fn status_bar(&self) -> &Entity<StatusBar> {
 1921        &self.status_bar
 1922    }
 1923
 1924    pub fn status_bar_visible(&self, cx: &App) -> bool {
 1925        StatusBarSettings::get_global(cx).show
 1926    }
 1927
 1928    pub fn app_state(&self) -> &Arc<AppState> {
 1929        &self.app_state
 1930    }
 1931
 1932    pub fn user_store(&self) -> &Entity<UserStore> {
 1933        &self.app_state.user_store
 1934    }
 1935
 1936    pub fn project(&self) -> &Entity<Project> {
 1937        &self.project
 1938    }
 1939
 1940    pub fn path_style(&self, cx: &App) -> PathStyle {
 1941        self.project.read(cx).path_style(cx)
 1942    }
 1943
 1944    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 1945        let mut history: HashMap<EntityId, usize> = HashMap::default();
 1946
 1947        for pane_handle in &self.panes {
 1948            let pane = pane_handle.read(cx);
 1949
 1950            for entry in pane.activation_history() {
 1951                history.insert(
 1952                    entry.entity_id,
 1953                    history
 1954                        .get(&entry.entity_id)
 1955                        .cloned()
 1956                        .unwrap_or(0)
 1957                        .max(entry.timestamp),
 1958                );
 1959            }
 1960        }
 1961
 1962        history
 1963    }
 1964
 1965    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 1966        let mut recent_item: Option<Entity<T>> = None;
 1967        let mut recent_timestamp = 0;
 1968        for pane_handle in &self.panes {
 1969            let pane = pane_handle.read(cx);
 1970            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 1971                pane.items().map(|item| (item.item_id(), item)).collect();
 1972            for entry in pane.activation_history() {
 1973                if entry.timestamp > recent_timestamp
 1974                    && let Some(&item) = item_map.get(&entry.entity_id)
 1975                    && let Some(typed_item) = item.act_as::<T>(cx)
 1976                {
 1977                    recent_timestamp = entry.timestamp;
 1978                    recent_item = Some(typed_item);
 1979                }
 1980            }
 1981        }
 1982        recent_item
 1983    }
 1984
 1985    pub fn recent_navigation_history_iter(
 1986        &self,
 1987        cx: &App,
 1988    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 1989        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 1990        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 1991
 1992        for pane in &self.panes {
 1993            let pane = pane.read(cx);
 1994
 1995            pane.nav_history()
 1996                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 1997                    if let Some(fs_path) = &fs_path {
 1998                        abs_paths_opened
 1999                            .entry(fs_path.clone())
 2000                            .or_default()
 2001                            .insert(project_path.clone());
 2002                    }
 2003                    let timestamp = entry.timestamp;
 2004                    match history.entry(project_path) {
 2005                        hash_map::Entry::Occupied(mut entry) => {
 2006                            let (_, old_timestamp) = entry.get();
 2007                            if &timestamp > old_timestamp {
 2008                                entry.insert((fs_path, timestamp));
 2009                            }
 2010                        }
 2011                        hash_map::Entry::Vacant(entry) => {
 2012                            entry.insert((fs_path, timestamp));
 2013                        }
 2014                    }
 2015                });
 2016
 2017            if let Some(item) = pane.active_item()
 2018                && let Some(project_path) = item.project_path(cx)
 2019            {
 2020                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2021
 2022                if let Some(fs_path) = &fs_path {
 2023                    abs_paths_opened
 2024                        .entry(fs_path.clone())
 2025                        .or_default()
 2026                        .insert(project_path.clone());
 2027                }
 2028
 2029                history.insert(project_path, (fs_path, std::usize::MAX));
 2030            }
 2031        }
 2032
 2033        history
 2034            .into_iter()
 2035            .sorted_by_key(|(_, (_, order))| *order)
 2036            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2037            .rev()
 2038            .filter(move |(history_path, abs_path)| {
 2039                let latest_project_path_opened = abs_path
 2040                    .as_ref()
 2041                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2042                    .and_then(|project_paths| {
 2043                        project_paths
 2044                            .iter()
 2045                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2046                    });
 2047
 2048                latest_project_path_opened.is_none_or(|path| path == history_path)
 2049            })
 2050    }
 2051
 2052    pub fn recent_navigation_history(
 2053        &self,
 2054        limit: Option<usize>,
 2055        cx: &App,
 2056    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2057        self.recent_navigation_history_iter(cx)
 2058            .take(limit.unwrap_or(usize::MAX))
 2059            .collect()
 2060    }
 2061
 2062    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2063        for pane in &self.panes {
 2064            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2065        }
 2066    }
 2067
 2068    fn navigate_history(
 2069        &mut self,
 2070        pane: WeakEntity<Pane>,
 2071        mode: NavigationMode,
 2072        window: &mut Window,
 2073        cx: &mut Context<Workspace>,
 2074    ) -> Task<Result<()>> {
 2075        let to_load = if let Some(pane) = pane.upgrade() {
 2076            pane.update(cx, |pane, cx| {
 2077                window.focus(&pane.focus_handle(cx), cx);
 2078                loop {
 2079                    // Retrieve the weak item handle from the history.
 2080                    let entry = pane.nav_history_mut().pop(mode, cx)?;
 2081
 2082                    // If the item is still present in this pane, then activate it.
 2083                    if let Some(index) = entry
 2084                        .item
 2085                        .upgrade()
 2086                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2087                    {
 2088                        let prev_active_item_index = pane.active_item_index();
 2089                        pane.nav_history_mut().set_mode(mode);
 2090                        pane.activate_item(index, true, true, window, cx);
 2091                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2092
 2093                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2094                        if let Some(data) = entry.data {
 2095                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2096                        }
 2097
 2098                        if navigated {
 2099                            break None;
 2100                        }
 2101                    } else {
 2102                        // If the item is no longer present in this pane, then retrieve its
 2103                        // path info in order to reopen it.
 2104                        break pane
 2105                            .nav_history()
 2106                            .path_for_item(entry.item.id())
 2107                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2108                    }
 2109                }
 2110            })
 2111        } else {
 2112            None
 2113        };
 2114
 2115        if let Some((project_path, abs_path, entry)) = to_load {
 2116            // If the item was no longer present, then load it again from its previous path, first try the local path
 2117            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2118
 2119            cx.spawn_in(window, async move  |workspace, cx| {
 2120                let open_by_project_path = open_by_project_path.await;
 2121                let mut navigated = false;
 2122                match open_by_project_path
 2123                    .with_context(|| format!("Navigating to {project_path:?}"))
 2124                {
 2125                    Ok((project_entry_id, build_item)) => {
 2126                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2127                            pane.nav_history_mut().set_mode(mode);
 2128                            pane.active_item().map(|p| p.item_id())
 2129                        })?;
 2130
 2131                        pane.update_in(cx, |pane, window, cx| {
 2132                            let item = pane.open_item(
 2133                                project_entry_id,
 2134                                project_path,
 2135                                true,
 2136                                entry.is_preview,
 2137                                true,
 2138                                None,
 2139                                window, cx,
 2140                                build_item,
 2141                            );
 2142                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2143                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2144                            if let Some(data) = entry.data {
 2145                                navigated |= item.navigate(data, window, cx);
 2146                            }
 2147                        })?;
 2148                    }
 2149                    Err(open_by_project_path_e) => {
 2150                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2151                        // and its worktree is now dropped
 2152                        if let Some(abs_path) = abs_path {
 2153                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2154                                pane.nav_history_mut().set_mode(mode);
 2155                                pane.active_item().map(|p| p.item_id())
 2156                            })?;
 2157                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2158                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2159                            })?;
 2160                            match open_by_abs_path
 2161                                .await
 2162                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2163                            {
 2164                                Ok(item) => {
 2165                                    pane.update_in(cx, |pane, window, cx| {
 2166                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2167                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2168                                        if let Some(data) = entry.data {
 2169                                            navigated |= item.navigate(data, window, cx);
 2170                                        }
 2171                                    })?;
 2172                                }
 2173                                Err(open_by_abs_path_e) => {
 2174                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2175                                }
 2176                            }
 2177                        }
 2178                    }
 2179                }
 2180
 2181                if !navigated {
 2182                    workspace
 2183                        .update_in(cx, |workspace, window, cx| {
 2184                            Self::navigate_history(workspace, pane, mode, window, cx)
 2185                        })?
 2186                        .await?;
 2187                }
 2188
 2189                Ok(())
 2190            })
 2191        } else {
 2192            Task::ready(Ok(()))
 2193        }
 2194    }
 2195
 2196    pub fn go_back(
 2197        &mut self,
 2198        pane: WeakEntity<Pane>,
 2199        window: &mut Window,
 2200        cx: &mut Context<Workspace>,
 2201    ) -> Task<Result<()>> {
 2202        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2203    }
 2204
 2205    pub fn go_forward(
 2206        &mut self,
 2207        pane: WeakEntity<Pane>,
 2208        window: &mut Window,
 2209        cx: &mut Context<Workspace>,
 2210    ) -> Task<Result<()>> {
 2211        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2212    }
 2213
 2214    pub fn reopen_closed_item(
 2215        &mut self,
 2216        window: &mut Window,
 2217        cx: &mut Context<Workspace>,
 2218    ) -> Task<Result<()>> {
 2219        self.navigate_history(
 2220            self.active_pane().downgrade(),
 2221            NavigationMode::ReopeningClosedItem,
 2222            window,
 2223            cx,
 2224        )
 2225    }
 2226
 2227    pub fn client(&self) -> &Arc<Client> {
 2228        &self.app_state.client
 2229    }
 2230
 2231    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2232        self.titlebar_item = Some(item);
 2233        cx.notify();
 2234    }
 2235
 2236    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2237        self.on_prompt_for_new_path = Some(prompt)
 2238    }
 2239
 2240    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2241        self.on_prompt_for_open_path = Some(prompt)
 2242    }
 2243
 2244    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2245        self.terminal_provider = Some(Box::new(provider));
 2246    }
 2247
 2248    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2249        self.debugger_provider = Some(Arc::new(provider));
 2250    }
 2251
 2252    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2253        self.debugger_provider.clone()
 2254    }
 2255
 2256    pub fn prompt_for_open_path(
 2257        &mut self,
 2258        path_prompt_options: PathPromptOptions,
 2259        lister: DirectoryLister,
 2260        window: &mut Window,
 2261        cx: &mut Context<Self>,
 2262    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2263        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2264            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2265            let rx = prompt(self, lister, window, cx);
 2266            self.on_prompt_for_open_path = Some(prompt);
 2267            rx
 2268        } else {
 2269            let (tx, rx) = oneshot::channel();
 2270            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2271
 2272            cx.spawn_in(window, async move |workspace, cx| {
 2273                let Ok(result) = abs_path.await else {
 2274                    return Ok(());
 2275                };
 2276
 2277                match result {
 2278                    Ok(result) => {
 2279                        tx.send(result).ok();
 2280                    }
 2281                    Err(err) => {
 2282                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2283                            workspace.show_portal_error(err.to_string(), cx);
 2284                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2285                            let rx = prompt(workspace, lister, window, cx);
 2286                            workspace.on_prompt_for_open_path = Some(prompt);
 2287                            rx
 2288                        })?;
 2289                        if let Ok(path) = rx.await {
 2290                            tx.send(path).ok();
 2291                        }
 2292                    }
 2293                };
 2294                anyhow::Ok(())
 2295            })
 2296            .detach();
 2297
 2298            rx
 2299        }
 2300    }
 2301
 2302    pub fn prompt_for_new_path(
 2303        &mut self,
 2304        lister: DirectoryLister,
 2305        suggested_name: Option<String>,
 2306        window: &mut Window,
 2307        cx: &mut Context<Self>,
 2308    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2309        if self.project.read(cx).is_via_collab()
 2310            || self.project.read(cx).is_via_remote_server()
 2311            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2312        {
 2313            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2314            let rx = prompt(self, lister, window, cx);
 2315            self.on_prompt_for_new_path = Some(prompt);
 2316            return rx;
 2317        }
 2318
 2319        let (tx, rx) = oneshot::channel();
 2320        cx.spawn_in(window, async move |workspace, cx| {
 2321            let abs_path = workspace.update(cx, |workspace, cx| {
 2322                let relative_to = workspace
 2323                    .most_recent_active_path(cx)
 2324                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2325                    .or_else(|| {
 2326                        let project = workspace.project.read(cx);
 2327                        project.visible_worktrees(cx).find_map(|worktree| {
 2328                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2329                        })
 2330                    })
 2331                    .or_else(std::env::home_dir)
 2332                    .unwrap_or_else(|| PathBuf::from(""));
 2333                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2334            })?;
 2335            let abs_path = match abs_path.await? {
 2336                Ok(path) => path,
 2337                Err(err) => {
 2338                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2339                        workspace.show_portal_error(err.to_string(), cx);
 2340
 2341                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2342                        let rx = prompt(workspace, lister, window, cx);
 2343                        workspace.on_prompt_for_new_path = Some(prompt);
 2344                        rx
 2345                    })?;
 2346                    if let Ok(path) = rx.await {
 2347                        tx.send(path).ok();
 2348                    }
 2349                    return anyhow::Ok(());
 2350                }
 2351            };
 2352
 2353            tx.send(abs_path.map(|path| vec![path])).ok();
 2354            anyhow::Ok(())
 2355        })
 2356        .detach();
 2357
 2358        rx
 2359    }
 2360
 2361    pub fn titlebar_item(&self) -> Option<AnyView> {
 2362        self.titlebar_item.clone()
 2363    }
 2364
 2365    /// Call the given callback with a workspace whose project is local.
 2366    ///
 2367    /// If the given workspace has a local project, then it will be passed
 2368    /// to the callback. Otherwise, a new empty window will be created.
 2369    pub fn with_local_workspace<T, F>(
 2370        &mut self,
 2371        window: &mut Window,
 2372        cx: &mut Context<Self>,
 2373        callback: F,
 2374    ) -> Task<Result<T>>
 2375    where
 2376        T: 'static,
 2377        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2378    {
 2379        if self.project.read(cx).is_local() {
 2380            Task::ready(Ok(callback(self, window, cx)))
 2381        } else {
 2382            let env = self.project.read(cx).cli_environment(cx);
 2383            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2384            cx.spawn_in(window, async move |_vh, cx| {
 2385                let (workspace, _) = task.await?;
 2386                workspace.update(cx, callback)
 2387            })
 2388        }
 2389    }
 2390
 2391    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2392        self.project.read(cx).worktrees(cx)
 2393    }
 2394
 2395    pub fn visible_worktrees<'a>(
 2396        &self,
 2397        cx: &'a App,
 2398    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2399        self.project.read(cx).visible_worktrees(cx)
 2400    }
 2401
 2402    #[cfg(any(test, feature = "test-support"))]
 2403    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2404        let futures = self
 2405            .worktrees(cx)
 2406            .filter_map(|worktree| worktree.read(cx).as_local())
 2407            .map(|worktree| worktree.scan_complete())
 2408            .collect::<Vec<_>>();
 2409        async move {
 2410            for future in futures {
 2411                future.await;
 2412            }
 2413        }
 2414    }
 2415
 2416    pub fn close_global(cx: &mut App) {
 2417        cx.defer(|cx| {
 2418            cx.windows().iter().find(|window| {
 2419                window
 2420                    .update(cx, |_, window, _| {
 2421                        if window.is_window_active() {
 2422                            //This can only get called when the window's project connection has been lost
 2423                            //so we don't need to prompt the user for anything and instead just close the window
 2424                            window.remove_window();
 2425                            true
 2426                        } else {
 2427                            false
 2428                        }
 2429                    })
 2430                    .unwrap_or(false)
 2431            });
 2432        });
 2433    }
 2434
 2435    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2436        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2437        cx.spawn_in(window, async move |_, cx| {
 2438            if prepare.await? {
 2439                cx.update(|window, _cx| window.remove_window())?;
 2440            }
 2441            anyhow::Ok(())
 2442        })
 2443        .detach_and_log_err(cx)
 2444    }
 2445
 2446    pub fn move_focused_panel_to_next_position(
 2447        &mut self,
 2448        _: &MoveFocusedPanelToNextPosition,
 2449        window: &mut Window,
 2450        cx: &mut Context<Self>,
 2451    ) {
 2452        let docks = self.all_docks();
 2453        let active_dock = docks
 2454            .into_iter()
 2455            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2456
 2457        if let Some(dock) = active_dock {
 2458            dock.update(cx, |dock, cx| {
 2459                let active_panel = dock
 2460                    .active_panel()
 2461                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2462
 2463                if let Some(panel) = active_panel {
 2464                    panel.move_to_next_position(window, cx);
 2465                }
 2466            })
 2467        }
 2468    }
 2469
 2470    pub fn prepare_to_close(
 2471        &mut self,
 2472        close_intent: CloseIntent,
 2473        window: &mut Window,
 2474        cx: &mut Context<Self>,
 2475    ) -> Task<Result<bool>> {
 2476        let active_call = self.active_call().cloned();
 2477
 2478        cx.spawn_in(window, async move |this, cx| {
 2479            this.update(cx, |this, _| {
 2480                if close_intent == CloseIntent::CloseWindow {
 2481                    this.removing = true;
 2482                }
 2483            })?;
 2484
 2485            let workspace_count = cx.update(|_window, cx| {
 2486                cx.windows()
 2487                    .iter()
 2488                    .filter(|window| window.downcast::<Workspace>().is_some())
 2489                    .count()
 2490            })?;
 2491
 2492            #[cfg(target_os = "macos")]
 2493            let save_last_workspace = false;
 2494
 2495            // On Linux and Windows, closing the last window should restore the last workspace.
 2496            #[cfg(not(target_os = "macos"))]
 2497            let save_last_workspace = {
 2498                let remaining_workspaces = cx.update(|_window, cx| {
 2499                    cx.windows()
 2500                        .iter()
 2501                        .filter_map(|window| window.downcast::<Workspace>())
 2502                        .filter_map(|workspace| {
 2503                            workspace
 2504                                .update(cx, |workspace, _, _| workspace.removing)
 2505                                .ok()
 2506                        })
 2507                        .filter(|removing| !removing)
 2508                        .count()
 2509                })?;
 2510
 2511                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2512            };
 2513
 2514            if let Some(active_call) = active_call
 2515                && workspace_count == 1
 2516                && active_call.read_with(cx, |call, _| call.room().is_some())?
 2517            {
 2518                if close_intent == CloseIntent::CloseWindow {
 2519                    let answer = cx.update(|window, cx| {
 2520                        window.prompt(
 2521                            PromptLevel::Warning,
 2522                            "Do you want to leave the current call?",
 2523                            None,
 2524                            &["Close window and hang up", "Cancel"],
 2525                            cx,
 2526                        )
 2527                    })?;
 2528
 2529                    if answer.await.log_err() == Some(1) {
 2530                        return anyhow::Ok(false);
 2531                    } else {
 2532                        active_call
 2533                            .update(cx, |call, cx| call.hang_up(cx))?
 2534                            .await
 2535                            .log_err();
 2536                    }
 2537                }
 2538                if close_intent == CloseIntent::ReplaceWindow {
 2539                    _ = active_call.update(cx, |this, cx| {
 2540                        let workspace = cx
 2541                            .windows()
 2542                            .iter()
 2543                            .filter_map(|window| window.downcast::<Workspace>())
 2544                            .next()
 2545                            .unwrap();
 2546                        let project = workspace.read(cx)?.project.clone();
 2547                        if project.read(cx).is_shared() {
 2548                            this.unshare_project(project, cx)?;
 2549                        }
 2550                        Ok::<_, anyhow::Error>(())
 2551                    })?;
 2552                }
 2553            }
 2554
 2555            let save_result = this
 2556                .update_in(cx, |this, window, cx| {
 2557                    this.save_all_internal(SaveIntent::Close, window, cx)
 2558                })?
 2559                .await;
 2560
 2561            // If we're not quitting, but closing, we remove the workspace from
 2562            // the current session.
 2563            if close_intent != CloseIntent::Quit
 2564                && !save_last_workspace
 2565                && save_result.as_ref().is_ok_and(|&res| res)
 2566            {
 2567                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2568                    .await;
 2569            }
 2570
 2571            save_result
 2572        })
 2573    }
 2574
 2575    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2576        self.save_all_internal(
 2577            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2578            window,
 2579            cx,
 2580        )
 2581        .detach_and_log_err(cx);
 2582    }
 2583
 2584    fn send_keystrokes(
 2585        &mut self,
 2586        action: &SendKeystrokes,
 2587        window: &mut Window,
 2588        cx: &mut Context<Self>,
 2589    ) {
 2590        let keystrokes: Vec<Keystroke> = action
 2591            .0
 2592            .split(' ')
 2593            .flat_map(|k| Keystroke::parse(k).log_err())
 2594            .map(|k| {
 2595                cx.keyboard_mapper()
 2596                    .map_key_equivalent(k, true)
 2597                    .inner()
 2598                    .clone()
 2599            })
 2600            .collect();
 2601        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2602    }
 2603
 2604    pub fn send_keystrokes_impl(
 2605        &mut self,
 2606        keystrokes: Vec<Keystroke>,
 2607        window: &mut Window,
 2608        cx: &mut Context<Self>,
 2609    ) -> Shared<Task<()>> {
 2610        let mut state = self.dispatching_keystrokes.borrow_mut();
 2611        if !state.dispatched.insert(keystrokes.clone()) {
 2612            cx.propagate();
 2613            return state.task.clone().unwrap();
 2614        }
 2615
 2616        state.queue.extend(keystrokes);
 2617
 2618        let keystrokes = self.dispatching_keystrokes.clone();
 2619        if state.task.is_none() {
 2620            state.task = Some(
 2621                window
 2622                    .spawn(cx, async move |cx| {
 2623                        // limit to 100 keystrokes to avoid infinite recursion.
 2624                        for _ in 0..100 {
 2625                            let mut state = keystrokes.borrow_mut();
 2626                            let Some(keystroke) = state.queue.pop_front() else {
 2627                                state.dispatched.clear();
 2628                                state.task.take();
 2629                                return;
 2630                            };
 2631                            drop(state);
 2632                            cx.update(|window, cx| {
 2633                                let focused = window.focused(cx);
 2634                                window.dispatch_keystroke(keystroke.clone(), cx);
 2635                                if window.focused(cx) != focused {
 2636                                    // dispatch_keystroke may cause the focus to change.
 2637                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2638                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2639                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2640                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2641                                    // )
 2642                                    window.draw(cx).clear();
 2643                                }
 2644                            })
 2645                            .ok();
 2646                        }
 2647
 2648                        *keystrokes.borrow_mut() = Default::default();
 2649                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2650                    })
 2651                    .shared(),
 2652            );
 2653        }
 2654        state.task.clone().unwrap()
 2655    }
 2656
 2657    fn save_all_internal(
 2658        &mut self,
 2659        mut save_intent: SaveIntent,
 2660        window: &mut Window,
 2661        cx: &mut Context<Self>,
 2662    ) -> Task<Result<bool>> {
 2663        if self.project.read(cx).is_disconnected(cx) {
 2664            return Task::ready(Ok(true));
 2665        }
 2666        let dirty_items = self
 2667            .panes
 2668            .iter()
 2669            .flat_map(|pane| {
 2670                pane.read(cx).items().filter_map(|item| {
 2671                    if item.is_dirty(cx) {
 2672                        item.tab_content_text(0, cx);
 2673                        Some((pane.downgrade(), item.boxed_clone()))
 2674                    } else {
 2675                        None
 2676                    }
 2677                })
 2678            })
 2679            .collect::<Vec<_>>();
 2680
 2681        let project = self.project.clone();
 2682        cx.spawn_in(window, async move |workspace, cx| {
 2683            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2684                let (serialize_tasks, remaining_dirty_items) =
 2685                    workspace.update_in(cx, |workspace, window, cx| {
 2686                        let mut remaining_dirty_items = Vec::new();
 2687                        let mut serialize_tasks = Vec::new();
 2688                        for (pane, item) in dirty_items {
 2689                            if let Some(task) = item
 2690                                .to_serializable_item_handle(cx)
 2691                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2692                            {
 2693                                serialize_tasks.push(task);
 2694                            } else {
 2695                                remaining_dirty_items.push((pane, item));
 2696                            }
 2697                        }
 2698                        (serialize_tasks, remaining_dirty_items)
 2699                    })?;
 2700
 2701                futures::future::try_join_all(serialize_tasks).await?;
 2702
 2703                if remaining_dirty_items.len() > 1 {
 2704                    let answer = workspace.update_in(cx, |_, window, cx| {
 2705                        let detail = Pane::file_names_for_prompt(
 2706                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2707                            cx,
 2708                        );
 2709                        window.prompt(
 2710                            PromptLevel::Warning,
 2711                            "Do you want to save all changes in the following files?",
 2712                            Some(&detail),
 2713                            &["Save all", "Discard all", "Cancel"],
 2714                            cx,
 2715                        )
 2716                    })?;
 2717                    match answer.await.log_err() {
 2718                        Some(0) => save_intent = SaveIntent::SaveAll,
 2719                        Some(1) => save_intent = SaveIntent::Skip,
 2720                        Some(2) => return Ok(false),
 2721                        _ => {}
 2722                    }
 2723                }
 2724
 2725                remaining_dirty_items
 2726            } else {
 2727                dirty_items
 2728            };
 2729
 2730            for (pane, item) in dirty_items {
 2731                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2732                    (
 2733                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2734                        item.project_entry_ids(cx),
 2735                    )
 2736                })?;
 2737                if (singleton || !project_entry_ids.is_empty())
 2738                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2739                {
 2740                    return Ok(false);
 2741                }
 2742            }
 2743            Ok(true)
 2744        })
 2745    }
 2746
 2747    pub fn open_workspace_for_paths(
 2748        &mut self,
 2749        replace_current_window: bool,
 2750        paths: Vec<PathBuf>,
 2751        window: &mut Window,
 2752        cx: &mut Context<Self>,
 2753    ) -> Task<Result<()>> {
 2754        let window_handle = window.window_handle().downcast::<Self>();
 2755        let is_remote = self.project.read(cx).is_via_collab();
 2756        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2757        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2758
 2759        let window_to_replace = if replace_current_window {
 2760            window_handle
 2761        } else if is_remote || has_worktree || has_dirty_items {
 2762            None
 2763        } else {
 2764            window_handle
 2765        };
 2766        let app_state = self.app_state.clone();
 2767
 2768        cx.spawn(async move |_, cx| {
 2769            cx.update(|cx| {
 2770                open_paths(
 2771                    &paths,
 2772                    app_state,
 2773                    OpenOptions {
 2774                        replace_window: window_to_replace,
 2775                        ..Default::default()
 2776                    },
 2777                    cx,
 2778                )
 2779            })?
 2780            .await?;
 2781            Ok(())
 2782        })
 2783    }
 2784
 2785    #[allow(clippy::type_complexity)]
 2786    pub fn open_paths(
 2787        &mut self,
 2788        mut abs_paths: Vec<PathBuf>,
 2789        options: OpenOptions,
 2790        pane: Option<WeakEntity<Pane>>,
 2791        window: &mut Window,
 2792        cx: &mut Context<Self>,
 2793    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2794        let fs = self.app_state.fs.clone();
 2795
 2796        // Sort the paths to ensure we add worktrees for parents before their children.
 2797        abs_paths.sort_unstable();
 2798        cx.spawn_in(window, async move |this, cx| {
 2799            let mut tasks = Vec::with_capacity(abs_paths.len());
 2800
 2801            for abs_path in &abs_paths {
 2802                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 2803                    OpenVisible::All => Some(true),
 2804                    OpenVisible::None => Some(false),
 2805                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 2806                        Some(Some(metadata)) => Some(!metadata.is_dir),
 2807                        Some(None) => Some(true),
 2808                        None => None,
 2809                    },
 2810                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 2811                        Some(Some(metadata)) => Some(metadata.is_dir),
 2812                        Some(None) => Some(false),
 2813                        None => None,
 2814                    },
 2815                };
 2816                let project_path = match visible {
 2817                    Some(visible) => match this
 2818                        .update(cx, |this, cx| {
 2819                            Workspace::project_path_for_path(
 2820                                this.project.clone(),
 2821                                abs_path,
 2822                                visible,
 2823                                cx,
 2824                            )
 2825                        })
 2826                        .log_err()
 2827                    {
 2828                        Some(project_path) => project_path.await.log_err(),
 2829                        None => None,
 2830                    },
 2831                    None => None,
 2832                };
 2833
 2834                let this = this.clone();
 2835                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 2836                let fs = fs.clone();
 2837                let pane = pane.clone();
 2838                let task = cx.spawn(async move |cx| {
 2839                    let (worktree, project_path) = project_path?;
 2840                    if fs.is_dir(&abs_path).await {
 2841                        this.update(cx, |workspace, cx| {
 2842                            let worktree = worktree.read(cx);
 2843                            let worktree_abs_path = worktree.abs_path();
 2844                            let entry_id = if abs_path.as_ref() == worktree_abs_path.as_ref() {
 2845                                worktree.root_entry()
 2846                            } else {
 2847                                abs_path
 2848                                    .strip_prefix(worktree_abs_path.as_ref())
 2849                                    .ok()
 2850                                    .and_then(|relative_path| {
 2851                                        let relative_path =
 2852                                            RelPath::new(relative_path, PathStyle::local())
 2853                                                .log_err()?;
 2854                                        worktree.entry_for_path(&relative_path)
 2855                                    })
 2856                            }
 2857                            .map(|entry| entry.id);
 2858                            if let Some(entry_id) = entry_id {
 2859                                workspace.project.update(cx, |_, cx| {
 2860                                    cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 2861                                })
 2862                            }
 2863                        })
 2864                        .ok()?;
 2865                        None
 2866                    } else {
 2867                        Some(
 2868                            this.update_in(cx, |this, window, cx| {
 2869                                this.open_path(
 2870                                    project_path,
 2871                                    pane,
 2872                                    options.focus.unwrap_or(true),
 2873                                    window,
 2874                                    cx,
 2875                                )
 2876                            })
 2877                            .ok()?
 2878                            .await,
 2879                        )
 2880                    }
 2881                });
 2882                tasks.push(task);
 2883            }
 2884
 2885            futures::future::join_all(tasks).await
 2886        })
 2887    }
 2888
 2889    pub fn open_resolved_path(
 2890        &mut self,
 2891        path: ResolvedPath,
 2892        window: &mut Window,
 2893        cx: &mut Context<Self>,
 2894    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 2895        match path {
 2896            ResolvedPath::ProjectPath { project_path, .. } => {
 2897                self.open_path(project_path, None, true, window, cx)
 2898            }
 2899            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 2900                PathBuf::from(path),
 2901                OpenOptions {
 2902                    visible: Some(OpenVisible::None),
 2903                    ..Default::default()
 2904                },
 2905                window,
 2906                cx,
 2907            ),
 2908        }
 2909    }
 2910
 2911    pub fn absolute_path_of_worktree(
 2912        &self,
 2913        worktree_id: WorktreeId,
 2914        cx: &mut Context<Self>,
 2915    ) -> Option<PathBuf> {
 2916        self.project
 2917            .read(cx)
 2918            .worktree_for_id(worktree_id, cx)
 2919            // TODO: use `abs_path` or `root_dir`
 2920            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 2921    }
 2922
 2923    fn add_folder_to_project(
 2924        &mut self,
 2925        _: &AddFolderToProject,
 2926        window: &mut Window,
 2927        cx: &mut Context<Self>,
 2928    ) {
 2929        let project = self.project.read(cx);
 2930        if project.is_via_collab() {
 2931            self.show_error(
 2932                &anyhow!("You cannot add folders to someone else's project"),
 2933                cx,
 2934            );
 2935            return;
 2936        }
 2937        let paths = self.prompt_for_open_path(
 2938            PathPromptOptions {
 2939                files: false,
 2940                directories: true,
 2941                multiple: true,
 2942                prompt: None,
 2943            },
 2944            DirectoryLister::Project(self.project.clone()),
 2945            window,
 2946            cx,
 2947        );
 2948        cx.spawn_in(window, async move |this, cx| {
 2949            if let Some(paths) = paths.await.log_err().flatten() {
 2950                let results = this
 2951                    .update_in(cx, |this, window, cx| {
 2952                        this.open_paths(
 2953                            paths,
 2954                            OpenOptions {
 2955                                visible: Some(OpenVisible::All),
 2956                                ..Default::default()
 2957                            },
 2958                            None,
 2959                            window,
 2960                            cx,
 2961                        )
 2962                    })?
 2963                    .await;
 2964                for result in results.into_iter().flatten() {
 2965                    result.log_err();
 2966                }
 2967            }
 2968            anyhow::Ok(())
 2969        })
 2970        .detach_and_log_err(cx);
 2971    }
 2972
 2973    pub fn project_path_for_path(
 2974        project: Entity<Project>,
 2975        abs_path: &Path,
 2976        visible: bool,
 2977        cx: &mut App,
 2978    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 2979        let entry = project.update(cx, |project, cx| {
 2980            project.find_or_create_worktree(abs_path, visible, cx)
 2981        });
 2982        cx.spawn(async move |cx| {
 2983            let (worktree, path) = entry.await?;
 2984            let worktree_id = worktree.read_with(cx, |t, _| t.id())?;
 2985            Ok((
 2986                worktree,
 2987                ProjectPath {
 2988                    worktree_id,
 2989                    path: path,
 2990                },
 2991            ))
 2992        })
 2993    }
 2994
 2995    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 2996        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 2997    }
 2998
 2999    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3000        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3001    }
 3002
 3003    pub fn items_of_type<'a, T: Item>(
 3004        &'a self,
 3005        cx: &'a App,
 3006    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3007        self.panes
 3008            .iter()
 3009            .flat_map(|pane| pane.read(cx).items_of_type())
 3010    }
 3011
 3012    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3013        self.active_pane().read(cx).active_item()
 3014    }
 3015
 3016    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3017        let item = self.active_item(cx)?;
 3018        item.to_any_view().downcast::<I>().ok()
 3019    }
 3020
 3021    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3022        self.active_item(cx).and_then(|item| item.project_path(cx))
 3023    }
 3024
 3025    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3026        self.recent_navigation_history_iter(cx)
 3027            .filter_map(|(path, abs_path)| {
 3028                let worktree = self
 3029                    .project
 3030                    .read(cx)
 3031                    .worktree_for_id(path.worktree_id, cx)?;
 3032                if worktree.read(cx).is_visible() {
 3033                    abs_path
 3034                } else {
 3035                    None
 3036                }
 3037            })
 3038            .next()
 3039    }
 3040
 3041    pub fn save_active_item(
 3042        &mut self,
 3043        save_intent: SaveIntent,
 3044        window: &mut Window,
 3045        cx: &mut App,
 3046    ) -> Task<Result<()>> {
 3047        let project = self.project.clone();
 3048        let pane = self.active_pane();
 3049        let item = pane.read(cx).active_item();
 3050        let pane = pane.downgrade();
 3051
 3052        window.spawn(cx, async move |cx| {
 3053            if let Some(item) = item {
 3054                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3055                    .await
 3056                    .map(|_| ())
 3057            } else {
 3058                Ok(())
 3059            }
 3060        })
 3061    }
 3062
 3063    pub fn close_inactive_items_and_panes(
 3064        &mut self,
 3065        action: &CloseInactiveTabsAndPanes,
 3066        window: &mut Window,
 3067        cx: &mut Context<Self>,
 3068    ) {
 3069        if let Some(task) = self.close_all_internal(
 3070            true,
 3071            action.save_intent.unwrap_or(SaveIntent::Close),
 3072            window,
 3073            cx,
 3074        ) {
 3075            task.detach_and_log_err(cx)
 3076        }
 3077    }
 3078
 3079    pub fn close_all_items_and_panes(
 3080        &mut self,
 3081        action: &CloseAllItemsAndPanes,
 3082        window: &mut Window,
 3083        cx: &mut Context<Self>,
 3084    ) {
 3085        if let Some(task) = self.close_all_internal(
 3086            false,
 3087            action.save_intent.unwrap_or(SaveIntent::Close),
 3088            window,
 3089            cx,
 3090        ) {
 3091            task.detach_and_log_err(cx)
 3092        }
 3093    }
 3094
 3095    fn close_all_internal(
 3096        &mut self,
 3097        retain_active_pane: bool,
 3098        save_intent: SaveIntent,
 3099        window: &mut Window,
 3100        cx: &mut Context<Self>,
 3101    ) -> Option<Task<Result<()>>> {
 3102        let current_pane = self.active_pane();
 3103
 3104        let mut tasks = Vec::new();
 3105
 3106        if retain_active_pane {
 3107            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3108                pane.close_other_items(
 3109                    &CloseOtherItems {
 3110                        save_intent: None,
 3111                        close_pinned: false,
 3112                    },
 3113                    None,
 3114                    window,
 3115                    cx,
 3116                )
 3117            });
 3118
 3119            tasks.push(current_pane_close);
 3120        }
 3121
 3122        for pane in self.panes() {
 3123            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3124                continue;
 3125            }
 3126
 3127            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3128                pane.close_all_items(
 3129                    &CloseAllItems {
 3130                        save_intent: Some(save_intent),
 3131                        close_pinned: false,
 3132                    },
 3133                    window,
 3134                    cx,
 3135                )
 3136            });
 3137
 3138            tasks.push(close_pane_items)
 3139        }
 3140
 3141        if tasks.is_empty() {
 3142            None
 3143        } else {
 3144            Some(cx.spawn_in(window, async move |_, _| {
 3145                for task in tasks {
 3146                    task.await?
 3147                }
 3148                Ok(())
 3149            }))
 3150        }
 3151    }
 3152
 3153    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3154        self.dock_at_position(position).read(cx).is_open()
 3155    }
 3156
 3157    pub fn toggle_dock(
 3158        &mut self,
 3159        dock_side: DockPosition,
 3160        window: &mut Window,
 3161        cx: &mut Context<Self>,
 3162    ) {
 3163        let mut focus_center = false;
 3164        let mut reveal_dock = false;
 3165
 3166        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3167        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3168        if was_visible {
 3169            self.save_open_dock_positions(cx);
 3170        }
 3171
 3172        let dock = self.dock_at_position(dock_side);
 3173        dock.update(cx, |dock, cx| {
 3174            dock.set_open(!was_visible, window, cx);
 3175
 3176            if dock.active_panel().is_none() {
 3177                let Some(panel_ix) = dock
 3178                    .first_enabled_panel_idx(cx)
 3179                    .log_with_level(log::Level::Info)
 3180                else {
 3181                    return;
 3182                };
 3183                dock.activate_panel(panel_ix, window, cx);
 3184            }
 3185
 3186            if let Some(active_panel) = dock.active_panel() {
 3187                if was_visible {
 3188                    if active_panel
 3189                        .panel_focus_handle(cx)
 3190                        .contains_focused(window, cx)
 3191                    {
 3192                        focus_center = true;
 3193                    }
 3194                } else {
 3195                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3196                    window.focus(focus_handle, cx);
 3197                    reveal_dock = true;
 3198                }
 3199            }
 3200        });
 3201
 3202        if reveal_dock {
 3203            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3204        }
 3205
 3206        if focus_center {
 3207            self.active_pane
 3208                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3209        }
 3210
 3211        cx.notify();
 3212        self.serialize_workspace(window, cx);
 3213    }
 3214
 3215    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3216        self.all_docks().into_iter().find(|&dock| {
 3217            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3218        })
 3219    }
 3220
 3221    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3222        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3223            self.save_open_dock_positions(cx);
 3224            dock.update(cx, |dock, cx| {
 3225                dock.set_open(false, window, cx);
 3226            });
 3227            return true;
 3228        }
 3229        false
 3230    }
 3231
 3232    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3233        self.save_open_dock_positions(cx);
 3234        for dock in self.all_docks() {
 3235            dock.update(cx, |dock, cx| {
 3236                dock.set_open(false, window, cx);
 3237            });
 3238        }
 3239
 3240        cx.focus_self(window);
 3241        cx.notify();
 3242        self.serialize_workspace(window, cx);
 3243    }
 3244
 3245    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3246        self.all_docks()
 3247            .into_iter()
 3248            .filter_map(|dock| {
 3249                let dock_ref = dock.read(cx);
 3250                if dock_ref.is_open() {
 3251                    Some(dock_ref.position())
 3252                } else {
 3253                    None
 3254                }
 3255            })
 3256            .collect()
 3257    }
 3258
 3259    /// Saves the positions of currently open docks.
 3260    ///
 3261    /// Updates `last_open_dock_positions` with positions of all currently open
 3262    /// docks, to later be restored by the 'Toggle All Docks' action.
 3263    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3264        let open_dock_positions = self.get_open_dock_positions(cx);
 3265        if !open_dock_positions.is_empty() {
 3266            self.last_open_dock_positions = open_dock_positions;
 3267        }
 3268    }
 3269
 3270    /// Toggles all docks between open and closed states.
 3271    ///
 3272    /// If any docks are open, closes all and remembers their positions. If all
 3273    /// docks are closed, restores the last remembered dock configuration.
 3274    fn toggle_all_docks(
 3275        &mut self,
 3276        _: &ToggleAllDocks,
 3277        window: &mut Window,
 3278        cx: &mut Context<Self>,
 3279    ) {
 3280        let open_dock_positions = self.get_open_dock_positions(cx);
 3281
 3282        if !open_dock_positions.is_empty() {
 3283            self.close_all_docks(window, cx);
 3284        } else if !self.last_open_dock_positions.is_empty() {
 3285            self.restore_last_open_docks(window, cx);
 3286        }
 3287    }
 3288
 3289    /// Reopens docks from the most recently remembered configuration.
 3290    ///
 3291    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3292    /// and clears the stored positions.
 3293    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3294        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3295
 3296        for position in positions_to_open {
 3297            let dock = self.dock_at_position(position);
 3298            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3299        }
 3300
 3301        cx.focus_self(window);
 3302        cx.notify();
 3303        self.serialize_workspace(window, cx);
 3304    }
 3305
 3306    /// Transfer focus to the panel of the given type.
 3307    pub fn focus_panel<T: Panel>(
 3308        &mut self,
 3309        window: &mut Window,
 3310        cx: &mut Context<Self>,
 3311    ) -> Option<Entity<T>> {
 3312        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3313        panel.to_any().downcast().ok()
 3314    }
 3315
 3316    /// Focus the panel of the given type if it isn't already focused. If it is
 3317    /// already focused, then transfer focus back to the workspace center.
 3318    pub fn toggle_panel_focus<T: Panel>(
 3319        &mut self,
 3320        window: &mut Window,
 3321        cx: &mut Context<Self>,
 3322    ) -> bool {
 3323        let mut did_focus_panel = false;
 3324        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3325            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3326            did_focus_panel
 3327        });
 3328        did_focus_panel
 3329    }
 3330
 3331    pub fn activate_panel_for_proto_id(
 3332        &mut self,
 3333        panel_id: PanelId,
 3334        window: &mut Window,
 3335        cx: &mut Context<Self>,
 3336    ) -> Option<Arc<dyn PanelHandle>> {
 3337        let mut panel = None;
 3338        for dock in self.all_docks() {
 3339            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3340                panel = dock.update(cx, |dock, cx| {
 3341                    dock.activate_panel(panel_index, window, cx);
 3342                    dock.set_open(true, window, cx);
 3343                    dock.active_panel().cloned()
 3344                });
 3345                break;
 3346            }
 3347        }
 3348
 3349        if panel.is_some() {
 3350            cx.notify();
 3351            self.serialize_workspace(window, cx);
 3352        }
 3353
 3354        panel
 3355    }
 3356
 3357    /// Focus or unfocus the given panel type, depending on the given callback.
 3358    fn focus_or_unfocus_panel<T: Panel>(
 3359        &mut self,
 3360        window: &mut Window,
 3361        cx: &mut Context<Self>,
 3362        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3363    ) -> Option<Arc<dyn PanelHandle>> {
 3364        let mut result_panel = None;
 3365        let mut serialize = false;
 3366        for dock in self.all_docks() {
 3367            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3368                let mut focus_center = false;
 3369                let panel = dock.update(cx, |dock, cx| {
 3370                    dock.activate_panel(panel_index, window, cx);
 3371
 3372                    let panel = dock.active_panel().cloned();
 3373                    if let Some(panel) = panel.as_ref() {
 3374                        if should_focus(&**panel, window, cx) {
 3375                            dock.set_open(true, window, cx);
 3376                            panel.panel_focus_handle(cx).focus(window, cx);
 3377                        } else {
 3378                            focus_center = true;
 3379                        }
 3380                    }
 3381                    panel
 3382                });
 3383
 3384                if focus_center {
 3385                    self.active_pane
 3386                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3387                }
 3388
 3389                result_panel = panel;
 3390                serialize = true;
 3391                break;
 3392            }
 3393        }
 3394
 3395        if serialize {
 3396            self.serialize_workspace(window, cx);
 3397        }
 3398
 3399        cx.notify();
 3400        result_panel
 3401    }
 3402
 3403    /// Open the panel of the given type
 3404    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3405        for dock in self.all_docks() {
 3406            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3407                dock.update(cx, |dock, cx| {
 3408                    dock.activate_panel(panel_index, window, cx);
 3409                    dock.set_open(true, window, cx);
 3410                });
 3411            }
 3412        }
 3413    }
 3414
 3415    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3416        for dock in self.all_docks().iter() {
 3417            dock.update(cx, |dock, cx| {
 3418                if dock.panel::<T>().is_some() {
 3419                    dock.set_open(false, window, cx)
 3420                }
 3421            })
 3422        }
 3423    }
 3424
 3425    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3426        self.all_docks()
 3427            .iter()
 3428            .find_map(|dock| dock.read(cx).panel::<T>())
 3429    }
 3430
 3431    fn dismiss_zoomed_items_to_reveal(
 3432        &mut self,
 3433        dock_to_reveal: Option<DockPosition>,
 3434        window: &mut Window,
 3435        cx: &mut Context<Self>,
 3436    ) {
 3437        // If a center pane is zoomed, unzoom it.
 3438        for pane in &self.panes {
 3439            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3440                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3441            }
 3442        }
 3443
 3444        // If another dock is zoomed, hide it.
 3445        let mut focus_center = false;
 3446        for dock in self.all_docks() {
 3447            dock.update(cx, |dock, cx| {
 3448                if Some(dock.position()) != dock_to_reveal
 3449                    && let Some(panel) = dock.active_panel()
 3450                    && panel.is_zoomed(window, cx)
 3451                {
 3452                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3453                    dock.set_open(false, window, cx);
 3454                }
 3455            });
 3456        }
 3457
 3458        if focus_center {
 3459            self.active_pane
 3460                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3461        }
 3462
 3463        if self.zoomed_position != dock_to_reveal {
 3464            self.zoomed = None;
 3465            self.zoomed_position = None;
 3466            cx.emit(Event::ZoomChanged);
 3467        }
 3468
 3469        cx.notify();
 3470    }
 3471
 3472    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3473        let pane = cx.new(|cx| {
 3474            let mut pane = Pane::new(
 3475                self.weak_handle(),
 3476                self.project.clone(),
 3477                self.pane_history_timestamp.clone(),
 3478                None,
 3479                NewFile.boxed_clone(),
 3480                true,
 3481                window,
 3482                cx,
 3483            );
 3484            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3485            pane
 3486        });
 3487        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3488            .detach();
 3489        self.panes.push(pane.clone());
 3490
 3491        window.focus(&pane.focus_handle(cx), cx);
 3492
 3493        cx.emit(Event::PaneAdded(pane.clone()));
 3494        pane
 3495    }
 3496
 3497    pub fn add_item_to_center(
 3498        &mut self,
 3499        item: Box<dyn ItemHandle>,
 3500        window: &mut Window,
 3501        cx: &mut Context<Self>,
 3502    ) -> bool {
 3503        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3504            if let Some(center_pane) = center_pane.upgrade() {
 3505                center_pane.update(cx, |pane, cx| {
 3506                    pane.add_item(item, true, true, None, window, cx)
 3507                });
 3508                true
 3509            } else {
 3510                false
 3511            }
 3512        } else {
 3513            false
 3514        }
 3515    }
 3516
 3517    pub fn add_item_to_active_pane(
 3518        &mut self,
 3519        item: Box<dyn ItemHandle>,
 3520        destination_index: Option<usize>,
 3521        focus_item: bool,
 3522        window: &mut Window,
 3523        cx: &mut App,
 3524    ) {
 3525        self.add_item(
 3526            self.active_pane.clone(),
 3527            item,
 3528            destination_index,
 3529            false,
 3530            focus_item,
 3531            window,
 3532            cx,
 3533        )
 3534    }
 3535
 3536    pub fn add_item(
 3537        &mut self,
 3538        pane: Entity<Pane>,
 3539        item: Box<dyn ItemHandle>,
 3540        destination_index: Option<usize>,
 3541        activate_pane: bool,
 3542        focus_item: bool,
 3543        window: &mut Window,
 3544        cx: &mut App,
 3545    ) {
 3546        pane.update(cx, |pane, cx| {
 3547            pane.add_item(
 3548                item,
 3549                activate_pane,
 3550                focus_item,
 3551                destination_index,
 3552                window,
 3553                cx,
 3554            )
 3555        });
 3556    }
 3557
 3558    pub fn split_item(
 3559        &mut self,
 3560        split_direction: SplitDirection,
 3561        item: Box<dyn ItemHandle>,
 3562        window: &mut Window,
 3563        cx: &mut Context<Self>,
 3564    ) {
 3565        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3566        self.add_item(new_pane, item, None, true, true, window, cx);
 3567    }
 3568
 3569    pub fn open_abs_path(
 3570        &mut self,
 3571        abs_path: PathBuf,
 3572        options: OpenOptions,
 3573        window: &mut Window,
 3574        cx: &mut Context<Self>,
 3575    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3576        cx.spawn_in(window, async move |workspace, cx| {
 3577            let open_paths_task_result = workspace
 3578                .update_in(cx, |workspace, window, cx| {
 3579                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3580                })
 3581                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3582                .await;
 3583            anyhow::ensure!(
 3584                open_paths_task_result.len() == 1,
 3585                "open abs path {abs_path:?} task returned incorrect number of results"
 3586            );
 3587            match open_paths_task_result
 3588                .into_iter()
 3589                .next()
 3590                .expect("ensured single task result")
 3591            {
 3592                Some(open_result) => {
 3593                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3594                }
 3595                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3596            }
 3597        })
 3598    }
 3599
 3600    pub fn split_abs_path(
 3601        &mut self,
 3602        abs_path: PathBuf,
 3603        visible: bool,
 3604        window: &mut Window,
 3605        cx: &mut Context<Self>,
 3606    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3607        let project_path_task =
 3608            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3609        cx.spawn_in(window, async move |this, cx| {
 3610            let (_, path) = project_path_task.await?;
 3611            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3612                .await
 3613        })
 3614    }
 3615
 3616    pub fn open_path(
 3617        &mut self,
 3618        path: impl Into<ProjectPath>,
 3619        pane: Option<WeakEntity<Pane>>,
 3620        focus_item: bool,
 3621        window: &mut Window,
 3622        cx: &mut App,
 3623    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3624        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3625    }
 3626
 3627    pub fn open_path_preview(
 3628        &mut self,
 3629        path: impl Into<ProjectPath>,
 3630        pane: Option<WeakEntity<Pane>>,
 3631        focus_item: bool,
 3632        allow_preview: bool,
 3633        activate: bool,
 3634        window: &mut Window,
 3635        cx: &mut App,
 3636    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3637        let pane = pane.unwrap_or_else(|| {
 3638            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3639                self.panes
 3640                    .first()
 3641                    .expect("There must be an active pane")
 3642                    .downgrade()
 3643            })
 3644        });
 3645
 3646        let project_path = path.into();
 3647        let task = self.load_path(project_path.clone(), window, cx);
 3648        window.spawn(cx, async move |cx| {
 3649            let (project_entry_id, build_item) = task.await?;
 3650
 3651            pane.update_in(cx, |pane, window, cx| {
 3652                pane.open_item(
 3653                    project_entry_id,
 3654                    project_path,
 3655                    focus_item,
 3656                    allow_preview,
 3657                    activate,
 3658                    None,
 3659                    window,
 3660                    cx,
 3661                    build_item,
 3662                )
 3663            })
 3664        })
 3665    }
 3666
 3667    pub fn split_path(
 3668        &mut self,
 3669        path: impl Into<ProjectPath>,
 3670        window: &mut Window,
 3671        cx: &mut Context<Self>,
 3672    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3673        self.split_path_preview(path, false, None, window, cx)
 3674    }
 3675
 3676    pub fn split_path_preview(
 3677        &mut self,
 3678        path: impl Into<ProjectPath>,
 3679        allow_preview: bool,
 3680        split_direction: Option<SplitDirection>,
 3681        window: &mut Window,
 3682        cx: &mut Context<Self>,
 3683    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3684        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 3685            self.panes
 3686                .first()
 3687                .expect("There must be an active pane")
 3688                .downgrade()
 3689        });
 3690
 3691        if let Member::Pane(center_pane) = &self.center.root
 3692            && center_pane.read(cx).items_len() == 0
 3693        {
 3694            return self.open_path(path, Some(pane), true, window, cx);
 3695        }
 3696
 3697        let project_path = path.into();
 3698        let task = self.load_path(project_path.clone(), window, cx);
 3699        cx.spawn_in(window, async move |this, cx| {
 3700            let (project_entry_id, build_item) = task.await?;
 3701            this.update_in(cx, move |this, window, cx| -> Option<_> {
 3702                let pane = pane.upgrade()?;
 3703                let new_pane = this.split_pane(
 3704                    pane,
 3705                    split_direction.unwrap_or(SplitDirection::Right),
 3706                    window,
 3707                    cx,
 3708                );
 3709                new_pane.update(cx, |new_pane, cx| {
 3710                    Some(new_pane.open_item(
 3711                        project_entry_id,
 3712                        project_path,
 3713                        true,
 3714                        allow_preview,
 3715                        true,
 3716                        None,
 3717                        window,
 3718                        cx,
 3719                        build_item,
 3720                    ))
 3721                })
 3722            })
 3723            .map(|option| option.context("pane was dropped"))?
 3724        })
 3725    }
 3726
 3727    fn load_path(
 3728        &mut self,
 3729        path: ProjectPath,
 3730        window: &mut Window,
 3731        cx: &mut App,
 3732    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 3733        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 3734        registry.open_path(self.project(), &path, window, cx)
 3735    }
 3736
 3737    pub fn find_project_item<T>(
 3738        &self,
 3739        pane: &Entity<Pane>,
 3740        project_item: &Entity<T::Item>,
 3741        cx: &App,
 3742    ) -> Option<Entity<T>>
 3743    where
 3744        T: ProjectItem,
 3745    {
 3746        use project::ProjectItem as _;
 3747        let project_item = project_item.read(cx);
 3748        let entry_id = project_item.entry_id(cx);
 3749        let project_path = project_item.project_path(cx);
 3750
 3751        let mut item = None;
 3752        if let Some(entry_id) = entry_id {
 3753            item = pane.read(cx).item_for_entry(entry_id, cx);
 3754        }
 3755        if item.is_none()
 3756            && let Some(project_path) = project_path
 3757        {
 3758            item = pane.read(cx).item_for_path(project_path, cx);
 3759        }
 3760
 3761        item.and_then(|item| item.downcast::<T>())
 3762    }
 3763
 3764    pub fn is_project_item_open<T>(
 3765        &self,
 3766        pane: &Entity<Pane>,
 3767        project_item: &Entity<T::Item>,
 3768        cx: &App,
 3769    ) -> bool
 3770    where
 3771        T: ProjectItem,
 3772    {
 3773        self.find_project_item::<T>(pane, project_item, cx)
 3774            .is_some()
 3775    }
 3776
 3777    pub fn open_project_item<T>(
 3778        &mut self,
 3779        pane: Entity<Pane>,
 3780        project_item: Entity<T::Item>,
 3781        activate_pane: bool,
 3782        focus_item: bool,
 3783        keep_old_preview: bool,
 3784        allow_new_preview: bool,
 3785        window: &mut Window,
 3786        cx: &mut Context<Self>,
 3787    ) -> Entity<T>
 3788    where
 3789        T: ProjectItem,
 3790    {
 3791        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 3792
 3793        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 3794            if !keep_old_preview
 3795                && let Some(old_id) = old_item_id
 3796                && old_id != item.item_id()
 3797            {
 3798                // switching to a different item, so unpreview old active item
 3799                pane.update(cx, |pane, _| {
 3800                    pane.unpreview_item_if_preview(old_id);
 3801                });
 3802            }
 3803
 3804            self.activate_item(&item, activate_pane, focus_item, window, cx);
 3805            if !allow_new_preview {
 3806                pane.update(cx, |pane, _| {
 3807                    pane.unpreview_item_if_preview(item.item_id());
 3808                });
 3809            }
 3810            return item;
 3811        }
 3812
 3813        let item = pane.update(cx, |pane, cx| {
 3814            cx.new(|cx| {
 3815                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 3816            })
 3817        });
 3818        let mut destination_index = None;
 3819        pane.update(cx, |pane, cx| {
 3820            if !keep_old_preview && let Some(old_id) = old_item_id {
 3821                pane.unpreview_item_if_preview(old_id);
 3822            }
 3823            if allow_new_preview {
 3824                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 3825            }
 3826        });
 3827
 3828        self.add_item(
 3829            pane,
 3830            Box::new(item.clone()),
 3831            destination_index,
 3832            activate_pane,
 3833            focus_item,
 3834            window,
 3835            cx,
 3836        );
 3837        item
 3838    }
 3839
 3840    pub fn open_shared_screen(
 3841        &mut self,
 3842        peer_id: PeerId,
 3843        window: &mut Window,
 3844        cx: &mut Context<Self>,
 3845    ) {
 3846        if let Some(shared_screen) =
 3847            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 3848        {
 3849            self.active_pane.update(cx, |pane, cx| {
 3850                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 3851            });
 3852        }
 3853    }
 3854
 3855    pub fn activate_item(
 3856        &mut self,
 3857        item: &dyn ItemHandle,
 3858        activate_pane: bool,
 3859        focus_item: bool,
 3860        window: &mut Window,
 3861        cx: &mut App,
 3862    ) -> bool {
 3863        let result = self.panes.iter().find_map(|pane| {
 3864            pane.read(cx)
 3865                .index_for_item(item)
 3866                .map(|ix| (pane.clone(), ix))
 3867        });
 3868        if let Some((pane, ix)) = result {
 3869            pane.update(cx, |pane, cx| {
 3870                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 3871            });
 3872            true
 3873        } else {
 3874            false
 3875        }
 3876    }
 3877
 3878    fn activate_pane_at_index(
 3879        &mut self,
 3880        action: &ActivatePane,
 3881        window: &mut Window,
 3882        cx: &mut Context<Self>,
 3883    ) {
 3884        let panes = self.center.panes();
 3885        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 3886            window.focus(&pane.focus_handle(cx), cx);
 3887        } else {
 3888            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 3889                .detach();
 3890        }
 3891    }
 3892
 3893    fn move_item_to_pane_at_index(
 3894        &mut self,
 3895        action: &MoveItemToPane,
 3896        window: &mut Window,
 3897        cx: &mut Context<Self>,
 3898    ) {
 3899        let panes = self.center.panes();
 3900        let destination = match panes.get(action.destination) {
 3901            Some(&destination) => destination.clone(),
 3902            None => {
 3903                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 3904                    return;
 3905                }
 3906                let direction = SplitDirection::Right;
 3907                let split_off_pane = self
 3908                    .find_pane_in_direction(direction, cx)
 3909                    .unwrap_or_else(|| self.active_pane.clone());
 3910                let new_pane = self.add_pane(window, cx);
 3911                if self
 3912                    .center
 3913                    .split(&split_off_pane, &new_pane, direction, cx)
 3914                    .log_err()
 3915                    .is_none()
 3916                {
 3917                    return;
 3918                };
 3919                new_pane
 3920            }
 3921        };
 3922
 3923        if action.clone {
 3924            if self
 3925                .active_pane
 3926                .read(cx)
 3927                .active_item()
 3928                .is_some_and(|item| item.can_split(cx))
 3929            {
 3930                clone_active_item(
 3931                    self.database_id(),
 3932                    &self.active_pane,
 3933                    &destination,
 3934                    action.focus,
 3935                    window,
 3936                    cx,
 3937                );
 3938                return;
 3939            }
 3940        }
 3941        move_active_item(
 3942            &self.active_pane,
 3943            &destination,
 3944            action.focus,
 3945            true,
 3946            window,
 3947            cx,
 3948        )
 3949    }
 3950
 3951    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 3952        let panes = self.center.panes();
 3953        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3954            let next_ix = (ix + 1) % panes.len();
 3955            let next_pane = panes[next_ix].clone();
 3956            window.focus(&next_pane.focus_handle(cx), cx);
 3957        }
 3958    }
 3959
 3960    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 3961        let panes = self.center.panes();
 3962        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 3963            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 3964            let prev_pane = panes[prev_ix].clone();
 3965            window.focus(&prev_pane.focus_handle(cx), cx);
 3966        }
 3967    }
 3968
 3969    pub fn activate_pane_in_direction(
 3970        &mut self,
 3971        direction: SplitDirection,
 3972        window: &mut Window,
 3973        cx: &mut App,
 3974    ) {
 3975        use ActivateInDirectionTarget as Target;
 3976        enum Origin {
 3977            LeftDock,
 3978            RightDock,
 3979            BottomDock,
 3980            Center,
 3981        }
 3982
 3983        let origin: Origin = [
 3984            (&self.left_dock, Origin::LeftDock),
 3985            (&self.right_dock, Origin::RightDock),
 3986            (&self.bottom_dock, Origin::BottomDock),
 3987        ]
 3988        .into_iter()
 3989        .find_map(|(dock, origin)| {
 3990            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 3991                Some(origin)
 3992            } else {
 3993                None
 3994            }
 3995        })
 3996        .unwrap_or(Origin::Center);
 3997
 3998        let get_last_active_pane = || {
 3999            let pane = self
 4000                .last_active_center_pane
 4001                .clone()
 4002                .unwrap_or_else(|| {
 4003                    self.panes
 4004                        .first()
 4005                        .expect("There must be an active pane")
 4006                        .downgrade()
 4007                })
 4008                .upgrade()?;
 4009            (pane.read(cx).items_len() != 0).then_some(pane)
 4010        };
 4011
 4012        let try_dock =
 4013            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4014
 4015        let target = match (origin, direction) {
 4016            // We're in the center, so we first try to go to a different pane,
 4017            // otherwise try to go to a dock.
 4018            (Origin::Center, direction) => {
 4019                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4020                    Some(Target::Pane(pane))
 4021                } else {
 4022                    match direction {
 4023                        SplitDirection::Up => None,
 4024                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4025                        SplitDirection::Left => try_dock(&self.left_dock),
 4026                        SplitDirection::Right => try_dock(&self.right_dock),
 4027                    }
 4028                }
 4029            }
 4030
 4031            (Origin::LeftDock, SplitDirection::Right) => {
 4032                if let Some(last_active_pane) = get_last_active_pane() {
 4033                    Some(Target::Pane(last_active_pane))
 4034                } else {
 4035                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4036                }
 4037            }
 4038
 4039            (Origin::LeftDock, SplitDirection::Down)
 4040            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4041
 4042            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4043            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4044            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4045
 4046            (Origin::RightDock, SplitDirection::Left) => {
 4047                if let Some(last_active_pane) = get_last_active_pane() {
 4048                    Some(Target::Pane(last_active_pane))
 4049                } else {
 4050                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4051                }
 4052            }
 4053
 4054            _ => None,
 4055        };
 4056
 4057        match target {
 4058            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4059                let pane = pane.read(cx);
 4060                if let Some(item) = pane.active_item() {
 4061                    item.item_focus_handle(cx).focus(window, cx);
 4062                } else {
 4063                    log::error!(
 4064                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4065                    );
 4066                }
 4067            }
 4068            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4069                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4070                window.defer(cx, move |window, cx| {
 4071                    let dock = dock.read(cx);
 4072                    if let Some(panel) = dock.active_panel() {
 4073                        panel.panel_focus_handle(cx).focus(window, cx);
 4074                    } else {
 4075                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4076                    }
 4077                })
 4078            }
 4079            None => {}
 4080        }
 4081    }
 4082
 4083    pub fn move_item_to_pane_in_direction(
 4084        &mut self,
 4085        action: &MoveItemToPaneInDirection,
 4086        window: &mut Window,
 4087        cx: &mut Context<Self>,
 4088    ) {
 4089        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4090            Some(destination) => destination,
 4091            None => {
 4092                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4093                    return;
 4094                }
 4095                let new_pane = self.add_pane(window, cx);
 4096                if self
 4097                    .center
 4098                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4099                    .log_err()
 4100                    .is_none()
 4101                {
 4102                    return;
 4103                };
 4104                new_pane
 4105            }
 4106        };
 4107
 4108        if action.clone {
 4109            if self
 4110                .active_pane
 4111                .read(cx)
 4112                .active_item()
 4113                .is_some_and(|item| item.can_split(cx))
 4114            {
 4115                clone_active_item(
 4116                    self.database_id(),
 4117                    &self.active_pane,
 4118                    &destination,
 4119                    action.focus,
 4120                    window,
 4121                    cx,
 4122                );
 4123                return;
 4124            }
 4125        }
 4126        move_active_item(
 4127            &self.active_pane,
 4128            &destination,
 4129            action.focus,
 4130            true,
 4131            window,
 4132            cx,
 4133        );
 4134    }
 4135
 4136    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4137        self.center.bounding_box_for_pane(pane)
 4138    }
 4139
 4140    pub fn find_pane_in_direction(
 4141        &mut self,
 4142        direction: SplitDirection,
 4143        cx: &App,
 4144    ) -> Option<Entity<Pane>> {
 4145        self.center
 4146            .find_pane_in_direction(&self.active_pane, direction, cx)
 4147            .cloned()
 4148    }
 4149
 4150    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4151        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4152            self.center.swap(&self.active_pane, &to, cx);
 4153            cx.notify();
 4154        }
 4155    }
 4156
 4157    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4158        if self
 4159            .center
 4160            .move_to_border(&self.active_pane, direction, cx)
 4161            .unwrap()
 4162        {
 4163            cx.notify();
 4164        }
 4165    }
 4166
 4167    pub fn resize_pane(
 4168        &mut self,
 4169        axis: gpui::Axis,
 4170        amount: Pixels,
 4171        window: &mut Window,
 4172        cx: &mut Context<Self>,
 4173    ) {
 4174        let docks = self.all_docks();
 4175        let active_dock = docks
 4176            .into_iter()
 4177            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4178
 4179        if let Some(dock) = active_dock {
 4180            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4181                return;
 4182            };
 4183            match dock.read(cx).position() {
 4184                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4185                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4186                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4187            }
 4188        } else {
 4189            self.center
 4190                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4191        }
 4192        cx.notify();
 4193    }
 4194
 4195    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4196        self.center.reset_pane_sizes(cx);
 4197        cx.notify();
 4198    }
 4199
 4200    fn handle_pane_focused(
 4201        &mut self,
 4202        pane: Entity<Pane>,
 4203        window: &mut Window,
 4204        cx: &mut Context<Self>,
 4205    ) {
 4206        // This is explicitly hoisted out of the following check for pane identity as
 4207        // terminal panel panes are not registered as a center panes.
 4208        self.status_bar.update(cx, |status_bar, cx| {
 4209            status_bar.set_active_pane(&pane, window, cx);
 4210        });
 4211        if self.active_pane != pane {
 4212            self.set_active_pane(&pane, window, cx);
 4213        }
 4214
 4215        if self.last_active_center_pane.is_none() {
 4216            self.last_active_center_pane = Some(pane.downgrade());
 4217        }
 4218
 4219        self.dismiss_zoomed_items_to_reveal(None, window, cx);
 4220        if pane.read(cx).is_zoomed() {
 4221            self.zoomed = Some(pane.downgrade().into());
 4222        } else {
 4223            self.zoomed = None;
 4224        }
 4225        self.zoomed_position = None;
 4226        cx.emit(Event::ZoomChanged);
 4227        self.update_active_view_for_followers(window, cx);
 4228        pane.update(cx, |pane, _| {
 4229            pane.track_alternate_file_items();
 4230        });
 4231
 4232        cx.notify();
 4233    }
 4234
 4235    fn set_active_pane(
 4236        &mut self,
 4237        pane: &Entity<Pane>,
 4238        window: &mut Window,
 4239        cx: &mut Context<Self>,
 4240    ) {
 4241        self.active_pane = pane.clone();
 4242        self.active_item_path_changed(true, window, cx);
 4243        self.last_active_center_pane = Some(pane.downgrade());
 4244    }
 4245
 4246    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4247        self.update_active_view_for_followers(window, cx);
 4248    }
 4249
 4250    fn handle_pane_event(
 4251        &mut self,
 4252        pane: &Entity<Pane>,
 4253        event: &pane::Event,
 4254        window: &mut Window,
 4255        cx: &mut Context<Self>,
 4256    ) {
 4257        let mut serialize_workspace = true;
 4258        match event {
 4259            pane::Event::AddItem { item } => {
 4260                item.added_to_pane(self, pane.clone(), window, cx);
 4261                cx.emit(Event::ItemAdded {
 4262                    item: item.boxed_clone(),
 4263                });
 4264            }
 4265            pane::Event::Split { direction, mode } => {
 4266                match mode {
 4267                    SplitMode::ClonePane => {
 4268                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4269                            .detach();
 4270                    }
 4271                    SplitMode::EmptyPane => {
 4272                        self.split_pane(pane.clone(), *direction, window, cx);
 4273                    }
 4274                    SplitMode::MovePane => {
 4275                        self.split_and_move(pane.clone(), *direction, window, cx);
 4276                    }
 4277                };
 4278            }
 4279            pane::Event::JoinIntoNext => {
 4280                self.join_pane_into_next(pane.clone(), window, cx);
 4281            }
 4282            pane::Event::JoinAll => {
 4283                self.join_all_panes(window, cx);
 4284            }
 4285            pane::Event::Remove { focus_on_pane } => {
 4286                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4287            }
 4288            pane::Event::ActivateItem {
 4289                local,
 4290                focus_changed,
 4291            } => {
 4292                window.invalidate_character_coordinates();
 4293
 4294                pane.update(cx, |pane, _| {
 4295                    pane.track_alternate_file_items();
 4296                });
 4297                if *local {
 4298                    self.unfollow_in_pane(pane, window, cx);
 4299                }
 4300                serialize_workspace = *focus_changed || pane != self.active_pane();
 4301                if pane == self.active_pane() {
 4302                    self.active_item_path_changed(*focus_changed, window, cx);
 4303                    self.update_active_view_for_followers(window, cx);
 4304                } else if *local {
 4305                    self.set_active_pane(pane, window, cx);
 4306                }
 4307            }
 4308            pane::Event::UserSavedItem { item, save_intent } => {
 4309                cx.emit(Event::UserSavedItem {
 4310                    pane: pane.downgrade(),
 4311                    item: item.boxed_clone(),
 4312                    save_intent: *save_intent,
 4313                });
 4314                serialize_workspace = false;
 4315            }
 4316            pane::Event::ChangeItemTitle => {
 4317                if *pane == self.active_pane {
 4318                    self.active_item_path_changed(false, window, cx);
 4319                }
 4320                serialize_workspace = false;
 4321            }
 4322            pane::Event::RemovedItem { item } => {
 4323                cx.emit(Event::ActiveItemChanged);
 4324                self.update_window_edited(window, cx);
 4325                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4326                    && entry.get().entity_id() == pane.entity_id()
 4327                {
 4328                    entry.remove();
 4329                }
 4330                cx.emit(Event::ItemRemoved {
 4331                    item_id: item.item_id(),
 4332                });
 4333            }
 4334            pane::Event::Focus => {
 4335                window.invalidate_character_coordinates();
 4336                self.handle_pane_focused(pane.clone(), window, cx);
 4337            }
 4338            pane::Event::ZoomIn => {
 4339                if *pane == self.active_pane {
 4340                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4341                    if pane.read(cx).has_focus(window, cx) {
 4342                        self.zoomed = Some(pane.downgrade().into());
 4343                        self.zoomed_position = None;
 4344                        cx.emit(Event::ZoomChanged);
 4345                    }
 4346                    cx.notify();
 4347                }
 4348            }
 4349            pane::Event::ZoomOut => {
 4350                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4351                if self.zoomed_position.is_none() {
 4352                    self.zoomed = None;
 4353                    cx.emit(Event::ZoomChanged);
 4354                }
 4355                cx.notify();
 4356            }
 4357            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4358        }
 4359
 4360        if serialize_workspace {
 4361            self.serialize_workspace(window, cx);
 4362        }
 4363    }
 4364
 4365    pub fn unfollow_in_pane(
 4366        &mut self,
 4367        pane: &Entity<Pane>,
 4368        window: &mut Window,
 4369        cx: &mut Context<Workspace>,
 4370    ) -> Option<CollaboratorId> {
 4371        let leader_id = self.leader_for_pane(pane)?;
 4372        self.unfollow(leader_id, window, cx);
 4373        Some(leader_id)
 4374    }
 4375
 4376    pub fn split_pane(
 4377        &mut self,
 4378        pane_to_split: Entity<Pane>,
 4379        split_direction: SplitDirection,
 4380        window: &mut Window,
 4381        cx: &mut Context<Self>,
 4382    ) -> Entity<Pane> {
 4383        let new_pane = self.add_pane(window, cx);
 4384        self.center
 4385            .split(&pane_to_split, &new_pane, split_direction, cx)
 4386            .unwrap();
 4387        cx.notify();
 4388        new_pane
 4389    }
 4390
 4391    pub fn split_and_move(
 4392        &mut self,
 4393        pane: Entity<Pane>,
 4394        direction: SplitDirection,
 4395        window: &mut Window,
 4396        cx: &mut Context<Self>,
 4397    ) {
 4398        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4399            return;
 4400        };
 4401        let new_pane = self.add_pane(window, cx);
 4402        new_pane.update(cx, |pane, cx| {
 4403            pane.add_item(item, true, true, None, window, cx)
 4404        });
 4405        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4406        cx.notify();
 4407    }
 4408
 4409    pub fn split_and_clone(
 4410        &mut self,
 4411        pane: Entity<Pane>,
 4412        direction: SplitDirection,
 4413        window: &mut Window,
 4414        cx: &mut Context<Self>,
 4415    ) -> Task<Option<Entity<Pane>>> {
 4416        let Some(item) = pane.read(cx).active_item() else {
 4417            return Task::ready(None);
 4418        };
 4419        if !item.can_split(cx) {
 4420            return Task::ready(None);
 4421        }
 4422        let task = item.clone_on_split(self.database_id(), window, cx);
 4423        cx.spawn_in(window, async move |this, cx| {
 4424            if let Some(clone) = task.await {
 4425                this.update_in(cx, |this, window, cx| {
 4426                    let new_pane = this.add_pane(window, cx);
 4427                    new_pane.update(cx, |pane, cx| {
 4428                        pane.add_item(clone, true, true, None, window, cx)
 4429                    });
 4430                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4431                    cx.notify();
 4432                    new_pane
 4433                })
 4434                .ok()
 4435            } else {
 4436                None
 4437            }
 4438        })
 4439    }
 4440
 4441    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4442        let active_item = self.active_pane.read(cx).active_item();
 4443        for pane in &self.panes {
 4444            join_pane_into_active(&self.active_pane, pane, window, cx);
 4445        }
 4446        if let Some(active_item) = active_item {
 4447            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4448        }
 4449        cx.notify();
 4450    }
 4451
 4452    pub fn join_pane_into_next(
 4453        &mut self,
 4454        pane: Entity<Pane>,
 4455        window: &mut Window,
 4456        cx: &mut Context<Self>,
 4457    ) {
 4458        let next_pane = self
 4459            .find_pane_in_direction(SplitDirection::Right, cx)
 4460            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4461            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4462            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4463        let Some(next_pane) = next_pane else {
 4464            return;
 4465        };
 4466        move_all_items(&pane, &next_pane, window, cx);
 4467        cx.notify();
 4468    }
 4469
 4470    fn remove_pane(
 4471        &mut self,
 4472        pane: Entity<Pane>,
 4473        focus_on: Option<Entity<Pane>>,
 4474        window: &mut Window,
 4475        cx: &mut Context<Self>,
 4476    ) {
 4477        if self.center.remove(&pane, cx).unwrap() {
 4478            self.force_remove_pane(&pane, &focus_on, window, cx);
 4479            self.unfollow_in_pane(&pane, window, cx);
 4480            self.last_leaders_by_pane.remove(&pane.downgrade());
 4481            for removed_item in pane.read(cx).items() {
 4482                self.panes_by_item.remove(&removed_item.item_id());
 4483            }
 4484
 4485            cx.notify();
 4486        } else {
 4487            self.active_item_path_changed(true, window, cx);
 4488        }
 4489        cx.emit(Event::PaneRemoved);
 4490    }
 4491
 4492    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4493        &mut self.panes
 4494    }
 4495
 4496    pub fn panes(&self) -> &[Entity<Pane>] {
 4497        &self.panes
 4498    }
 4499
 4500    pub fn active_pane(&self) -> &Entity<Pane> {
 4501        &self.active_pane
 4502    }
 4503
 4504    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4505        for dock in self.all_docks() {
 4506            if dock.focus_handle(cx).contains_focused(window, cx)
 4507                && let Some(pane) = dock
 4508                    .read(cx)
 4509                    .active_panel()
 4510                    .and_then(|panel| panel.pane(cx))
 4511            {
 4512                return pane;
 4513            }
 4514        }
 4515        self.active_pane().clone()
 4516    }
 4517
 4518    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4519        self.find_pane_in_direction(SplitDirection::Right, cx)
 4520            .unwrap_or_else(|| {
 4521                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4522            })
 4523    }
 4524
 4525    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4526        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4527        weak_pane.upgrade()
 4528    }
 4529
 4530    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4531        self.follower_states.retain(|leader_id, state| {
 4532            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4533                for item in state.items_by_leader_view_id.values() {
 4534                    item.view.set_leader_id(None, window, cx);
 4535                }
 4536                false
 4537            } else {
 4538                true
 4539            }
 4540        });
 4541        cx.notify();
 4542    }
 4543
 4544    pub fn start_following(
 4545        &mut self,
 4546        leader_id: impl Into<CollaboratorId>,
 4547        window: &mut Window,
 4548        cx: &mut Context<Self>,
 4549    ) -> Option<Task<Result<()>>> {
 4550        let leader_id = leader_id.into();
 4551        let pane = self.active_pane().clone();
 4552
 4553        self.last_leaders_by_pane
 4554            .insert(pane.downgrade(), leader_id);
 4555        self.unfollow(leader_id, window, cx);
 4556        self.unfollow_in_pane(&pane, window, cx);
 4557        self.follower_states.insert(
 4558            leader_id,
 4559            FollowerState {
 4560                center_pane: pane.clone(),
 4561                dock_pane: None,
 4562                active_view_id: None,
 4563                items_by_leader_view_id: Default::default(),
 4564            },
 4565        );
 4566        cx.notify();
 4567
 4568        match leader_id {
 4569            CollaboratorId::PeerId(leader_peer_id) => {
 4570                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4571                let project_id = self.project.read(cx).remote_id();
 4572                let request = self.app_state.client.request(proto::Follow {
 4573                    room_id,
 4574                    project_id,
 4575                    leader_id: Some(leader_peer_id),
 4576                });
 4577
 4578                Some(cx.spawn_in(window, async move |this, cx| {
 4579                    let response = request.await?;
 4580                    this.update(cx, |this, _| {
 4581                        let state = this
 4582                            .follower_states
 4583                            .get_mut(&leader_id)
 4584                            .context("following interrupted")?;
 4585                        state.active_view_id = response
 4586                            .active_view
 4587                            .as_ref()
 4588                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4589                        anyhow::Ok(())
 4590                    })??;
 4591                    if let Some(view) = response.active_view {
 4592                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4593                    }
 4594                    this.update_in(cx, |this, window, cx| {
 4595                        this.leader_updated(leader_id, window, cx)
 4596                    })?;
 4597                    Ok(())
 4598                }))
 4599            }
 4600            CollaboratorId::Agent => {
 4601                self.leader_updated(leader_id, window, cx)?;
 4602                Some(Task::ready(Ok(())))
 4603            }
 4604        }
 4605    }
 4606
 4607    pub fn follow_next_collaborator(
 4608        &mut self,
 4609        _: &FollowNextCollaborator,
 4610        window: &mut Window,
 4611        cx: &mut Context<Self>,
 4612    ) {
 4613        let collaborators = self.project.read(cx).collaborators();
 4614        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4615            let mut collaborators = collaborators.keys().copied();
 4616            for peer_id in collaborators.by_ref() {
 4617                if CollaboratorId::PeerId(peer_id) == leader_id {
 4618                    break;
 4619                }
 4620            }
 4621            collaborators.next().map(CollaboratorId::PeerId)
 4622        } else if let Some(last_leader_id) =
 4623            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4624        {
 4625            match last_leader_id {
 4626                CollaboratorId::PeerId(peer_id) => {
 4627                    if collaborators.contains_key(peer_id) {
 4628                        Some(*last_leader_id)
 4629                    } else {
 4630                        None
 4631                    }
 4632                }
 4633                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4634            }
 4635        } else {
 4636            None
 4637        };
 4638
 4639        let pane = self.active_pane.clone();
 4640        let Some(leader_id) = next_leader_id.or_else(|| {
 4641            Some(CollaboratorId::PeerId(
 4642                collaborators.keys().copied().next()?,
 4643            ))
 4644        }) else {
 4645            return;
 4646        };
 4647        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4648            return;
 4649        }
 4650        if let Some(task) = self.start_following(leader_id, window, cx) {
 4651            task.detach_and_log_err(cx)
 4652        }
 4653    }
 4654
 4655    pub fn follow(
 4656        &mut self,
 4657        leader_id: impl Into<CollaboratorId>,
 4658        window: &mut Window,
 4659        cx: &mut Context<Self>,
 4660    ) {
 4661        let leader_id = leader_id.into();
 4662
 4663        if let CollaboratorId::PeerId(peer_id) = leader_id {
 4664            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 4665                return;
 4666            };
 4667            let room = room.read(cx);
 4668            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 4669                return;
 4670            };
 4671
 4672            let project = self.project.read(cx);
 4673
 4674            let other_project_id = match remote_participant.location {
 4675                call::ParticipantLocation::External => None,
 4676                call::ParticipantLocation::UnsharedProject => None,
 4677                call::ParticipantLocation::SharedProject { project_id } => {
 4678                    if Some(project_id) == project.remote_id() {
 4679                        None
 4680                    } else {
 4681                        Some(project_id)
 4682                    }
 4683                }
 4684            };
 4685
 4686            // if they are active in another project, follow there.
 4687            if let Some(project_id) = other_project_id {
 4688                let app_state = self.app_state.clone();
 4689                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 4690                    .detach_and_log_err(cx);
 4691            }
 4692        }
 4693
 4694        // if you're already following, find the right pane and focus it.
 4695        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 4696            window.focus(&follower_state.pane().focus_handle(cx), cx);
 4697
 4698            return;
 4699        }
 4700
 4701        // Otherwise, follow.
 4702        if let Some(task) = self.start_following(leader_id, window, cx) {
 4703            task.detach_and_log_err(cx)
 4704        }
 4705    }
 4706
 4707    pub fn unfollow(
 4708        &mut self,
 4709        leader_id: impl Into<CollaboratorId>,
 4710        window: &mut Window,
 4711        cx: &mut Context<Self>,
 4712    ) -> Option<()> {
 4713        cx.notify();
 4714
 4715        let leader_id = leader_id.into();
 4716        let state = self.follower_states.remove(&leader_id)?;
 4717        for (_, item) in state.items_by_leader_view_id {
 4718            item.view.set_leader_id(None, window, cx);
 4719        }
 4720
 4721        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 4722            let project_id = self.project.read(cx).remote_id();
 4723            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4724            self.app_state
 4725                .client
 4726                .send(proto::Unfollow {
 4727                    room_id,
 4728                    project_id,
 4729                    leader_id: Some(leader_peer_id),
 4730                })
 4731                .log_err();
 4732        }
 4733
 4734        Some(())
 4735    }
 4736
 4737    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 4738        self.follower_states.contains_key(&id.into())
 4739    }
 4740
 4741    fn active_item_path_changed(
 4742        &mut self,
 4743        focus_changed: bool,
 4744        window: &mut Window,
 4745        cx: &mut Context<Self>,
 4746    ) {
 4747        cx.emit(Event::ActiveItemChanged);
 4748        let active_entry = self.active_project_path(cx);
 4749        self.project.update(cx, |project, cx| {
 4750            project.set_active_path(active_entry.clone(), cx)
 4751        });
 4752
 4753        if focus_changed && let Some(project_path) = &active_entry {
 4754            let git_store_entity = self.project.read(cx).git_store().clone();
 4755            git_store_entity.update(cx, |git_store, cx| {
 4756                git_store.set_active_repo_for_path(project_path, cx);
 4757            });
 4758        }
 4759
 4760        self.update_window_title(window, cx);
 4761    }
 4762
 4763    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 4764        let project = self.project().read(cx);
 4765        let mut title = String::new();
 4766
 4767        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 4768            let name = {
 4769                let settings_location = SettingsLocation {
 4770                    worktree_id: worktree.read(cx).id(),
 4771                    path: RelPath::empty(),
 4772                };
 4773
 4774                let settings = WorktreeSettings::get(Some(settings_location), cx);
 4775                match &settings.project_name {
 4776                    Some(name) => name.as_str(),
 4777                    None => worktree.read(cx).root_name_str(),
 4778                }
 4779            };
 4780            if i > 0 {
 4781                title.push_str(", ");
 4782            }
 4783            title.push_str(name);
 4784        }
 4785
 4786        if title.is_empty() {
 4787            title = "empty project".to_string();
 4788        }
 4789
 4790        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 4791            let filename = path.path.file_name().or_else(|| {
 4792                Some(
 4793                    project
 4794                        .worktree_for_id(path.worktree_id, cx)?
 4795                        .read(cx)
 4796                        .root_name_str(),
 4797                )
 4798            });
 4799
 4800            if let Some(filename) = filename {
 4801                title.push_str("");
 4802                title.push_str(filename.as_ref());
 4803            }
 4804        }
 4805
 4806        if project.is_via_collab() {
 4807            title.push_str("");
 4808        } else if project.is_shared() {
 4809            title.push_str("");
 4810        }
 4811
 4812        if let Some(last_title) = self.last_window_title.as_ref()
 4813            && &title == last_title
 4814        {
 4815            return;
 4816        }
 4817        window.set_window_title(&title);
 4818        SystemWindowTabController::update_tab_title(
 4819            cx,
 4820            window.window_handle().window_id(),
 4821            SharedString::from(&title),
 4822        );
 4823        self.last_window_title = Some(title);
 4824    }
 4825
 4826    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 4827        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 4828        if is_edited != self.window_edited {
 4829            self.window_edited = is_edited;
 4830            window.set_window_edited(self.window_edited)
 4831        }
 4832    }
 4833
 4834    fn update_item_dirty_state(
 4835        &mut self,
 4836        item: &dyn ItemHandle,
 4837        window: &mut Window,
 4838        cx: &mut App,
 4839    ) {
 4840        let is_dirty = item.is_dirty(cx);
 4841        let item_id = item.item_id();
 4842        let was_dirty = self.dirty_items.contains_key(&item_id);
 4843        if is_dirty == was_dirty {
 4844            return;
 4845        }
 4846        if was_dirty {
 4847            self.dirty_items.remove(&item_id);
 4848            self.update_window_edited(window, cx);
 4849            return;
 4850        }
 4851        if let Some(window_handle) = window.window_handle().downcast::<Self>() {
 4852            let s = item.on_release(
 4853                cx,
 4854                Box::new(move |cx| {
 4855                    window_handle
 4856                        .update(cx, |this, window, cx| {
 4857                            this.dirty_items.remove(&item_id);
 4858                            this.update_window_edited(window, cx)
 4859                        })
 4860                        .ok();
 4861                }),
 4862            );
 4863            self.dirty_items.insert(item_id, s);
 4864            self.update_window_edited(window, cx);
 4865        }
 4866    }
 4867
 4868    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 4869        if self.notifications.is_empty() {
 4870            None
 4871        } else {
 4872            Some(
 4873                div()
 4874                    .absolute()
 4875                    .right_3()
 4876                    .bottom_3()
 4877                    .w_112()
 4878                    .h_full()
 4879                    .flex()
 4880                    .flex_col()
 4881                    .justify_end()
 4882                    .gap_2()
 4883                    .children(
 4884                        self.notifications
 4885                            .iter()
 4886                            .map(|(_, notification)| notification.clone().into_any()),
 4887                    ),
 4888            )
 4889        }
 4890    }
 4891
 4892    // RPC handlers
 4893
 4894    fn active_view_for_follower(
 4895        &self,
 4896        follower_project_id: Option<u64>,
 4897        window: &mut Window,
 4898        cx: &mut Context<Self>,
 4899    ) -> Option<proto::View> {
 4900        let (item, panel_id) = self.active_item_for_followers(window, cx);
 4901        let item = item?;
 4902        let leader_id = self
 4903            .pane_for(&*item)
 4904            .and_then(|pane| self.leader_for_pane(&pane));
 4905        let leader_peer_id = match leader_id {
 4906            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 4907            Some(CollaboratorId::Agent) | None => None,
 4908        };
 4909
 4910        let item_handle = item.to_followable_item_handle(cx)?;
 4911        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 4912        let variant = item_handle.to_state_proto(window, cx)?;
 4913
 4914        if item_handle.is_project_item(window, cx)
 4915            && (follower_project_id.is_none()
 4916                || follower_project_id != self.project.read(cx).remote_id())
 4917        {
 4918            return None;
 4919        }
 4920
 4921        Some(proto::View {
 4922            id: id.to_proto(),
 4923            leader_id: leader_peer_id,
 4924            variant: Some(variant),
 4925            panel_id: panel_id.map(|id| id as i32),
 4926        })
 4927    }
 4928
 4929    fn handle_follow(
 4930        &mut self,
 4931        follower_project_id: Option<u64>,
 4932        window: &mut Window,
 4933        cx: &mut Context<Self>,
 4934    ) -> proto::FollowResponse {
 4935        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 4936
 4937        cx.notify();
 4938        proto::FollowResponse {
 4939            // TODO: Remove after version 0.145.x stabilizes.
 4940            active_view_id: active_view.as_ref().and_then(|view| view.id.clone()),
 4941            views: active_view.iter().cloned().collect(),
 4942            active_view,
 4943        }
 4944    }
 4945
 4946    fn handle_update_followers(
 4947        &mut self,
 4948        leader_id: PeerId,
 4949        message: proto::UpdateFollowers,
 4950        _window: &mut Window,
 4951        _cx: &mut Context<Self>,
 4952    ) {
 4953        self.leader_updates_tx
 4954            .unbounded_send((leader_id, message))
 4955            .ok();
 4956    }
 4957
 4958    async fn process_leader_update(
 4959        this: &WeakEntity<Self>,
 4960        leader_id: PeerId,
 4961        update: proto::UpdateFollowers,
 4962        cx: &mut AsyncWindowContext,
 4963    ) -> Result<()> {
 4964        match update.variant.context("invalid update")? {
 4965            proto::update_followers::Variant::CreateView(view) => {
 4966                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 4967                let should_add_view = this.update(cx, |this, _| {
 4968                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4969                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 4970                    } else {
 4971                        anyhow::Ok(false)
 4972                    }
 4973                })??;
 4974
 4975                if should_add_view {
 4976                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 4977                }
 4978            }
 4979            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 4980                let should_add_view = this.update(cx, |this, _| {
 4981                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 4982                        state.active_view_id = update_active_view
 4983                            .view
 4984                            .as_ref()
 4985                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4986
 4987                        if state.active_view_id.is_some_and(|view_id| {
 4988                            !state.items_by_leader_view_id.contains_key(&view_id)
 4989                        }) {
 4990                            anyhow::Ok(true)
 4991                        } else {
 4992                            anyhow::Ok(false)
 4993                        }
 4994                    } else {
 4995                        anyhow::Ok(false)
 4996                    }
 4997                })??;
 4998
 4999                if should_add_view && let Some(view) = update_active_view.view {
 5000                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5001                }
 5002            }
 5003            proto::update_followers::Variant::UpdateView(update_view) => {
 5004                let variant = update_view.variant.context("missing update view variant")?;
 5005                let id = update_view.id.context("missing update view id")?;
 5006                let mut tasks = Vec::new();
 5007                this.update_in(cx, |this, window, cx| {
 5008                    let project = this.project.clone();
 5009                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5010                        let view_id = ViewId::from_proto(id.clone())?;
 5011                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5012                            tasks.push(item.view.apply_update_proto(
 5013                                &project,
 5014                                variant.clone(),
 5015                                window,
 5016                                cx,
 5017                            ));
 5018                        }
 5019                    }
 5020                    anyhow::Ok(())
 5021                })??;
 5022                try_join_all(tasks).await.log_err();
 5023            }
 5024        }
 5025        this.update_in(cx, |this, window, cx| {
 5026            this.leader_updated(leader_id, window, cx)
 5027        })?;
 5028        Ok(())
 5029    }
 5030
 5031    async fn add_view_from_leader(
 5032        this: WeakEntity<Self>,
 5033        leader_id: PeerId,
 5034        view: &proto::View,
 5035        cx: &mut AsyncWindowContext,
 5036    ) -> Result<()> {
 5037        let this = this.upgrade().context("workspace dropped")?;
 5038
 5039        let Some(id) = view.id.clone() else {
 5040            anyhow::bail!("no id for view");
 5041        };
 5042        let id = ViewId::from_proto(id)?;
 5043        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5044
 5045        let pane = this.update(cx, |this, _cx| {
 5046            let state = this
 5047                .follower_states
 5048                .get(&leader_id.into())
 5049                .context("stopped following")?;
 5050            anyhow::Ok(state.pane().clone())
 5051        })??;
 5052        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5053            let client = this.read(cx).client().clone();
 5054            pane.items().find_map(|item| {
 5055                let item = item.to_followable_item_handle(cx)?;
 5056                if item.remote_id(&client, window, cx) == Some(id) {
 5057                    Some(item)
 5058                } else {
 5059                    None
 5060                }
 5061            })
 5062        })?;
 5063        let item = if let Some(existing_item) = existing_item {
 5064            existing_item
 5065        } else {
 5066            let variant = view.variant.clone();
 5067            anyhow::ensure!(variant.is_some(), "missing view variant");
 5068
 5069            let task = cx.update(|window, cx| {
 5070                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5071            })?;
 5072
 5073            let Some(task) = task else {
 5074                anyhow::bail!(
 5075                    "failed to construct view from leader (maybe from a different version of zed?)"
 5076                );
 5077            };
 5078
 5079            let mut new_item = task.await?;
 5080            pane.update_in(cx, |pane, window, cx| {
 5081                let mut item_to_remove = None;
 5082                for (ix, item) in pane.items().enumerate() {
 5083                    if let Some(item) = item.to_followable_item_handle(cx) {
 5084                        match new_item.dedup(item.as_ref(), window, cx) {
 5085                            Some(item::Dedup::KeepExisting) => {
 5086                                new_item =
 5087                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5088                                break;
 5089                            }
 5090                            Some(item::Dedup::ReplaceExisting) => {
 5091                                item_to_remove = Some((ix, item.item_id()));
 5092                                break;
 5093                            }
 5094                            None => {}
 5095                        }
 5096                    }
 5097                }
 5098
 5099                if let Some((ix, id)) = item_to_remove {
 5100                    pane.remove_item(id, false, false, window, cx);
 5101                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5102                }
 5103            })?;
 5104
 5105            new_item
 5106        };
 5107
 5108        this.update_in(cx, |this, window, cx| {
 5109            let state = this.follower_states.get_mut(&leader_id.into())?;
 5110            item.set_leader_id(Some(leader_id.into()), window, cx);
 5111            state.items_by_leader_view_id.insert(
 5112                id,
 5113                FollowerView {
 5114                    view: item,
 5115                    location: panel_id,
 5116                },
 5117            );
 5118
 5119            Some(())
 5120        })?;
 5121
 5122        Ok(())
 5123    }
 5124
 5125    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5126        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5127            return;
 5128        };
 5129
 5130        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5131            let buffer_entity_id = agent_location.buffer.entity_id();
 5132            let view_id = ViewId {
 5133                creator: CollaboratorId::Agent,
 5134                id: buffer_entity_id.as_u64(),
 5135            };
 5136            follower_state.active_view_id = Some(view_id);
 5137
 5138            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5139                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5140                hash_map::Entry::Vacant(entry) => {
 5141                    let existing_view =
 5142                        follower_state
 5143                            .center_pane
 5144                            .read(cx)
 5145                            .items()
 5146                            .find_map(|item| {
 5147                                let item = item.to_followable_item_handle(cx)?;
 5148                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5149                                    && item.project_item_model_ids(cx).as_slice()
 5150                                        == [buffer_entity_id]
 5151                                {
 5152                                    Some(item)
 5153                                } else {
 5154                                    None
 5155                                }
 5156                            });
 5157                    let view = existing_view.or_else(|| {
 5158                        agent_location.buffer.upgrade().and_then(|buffer| {
 5159                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5160                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5161                            })?
 5162                            .to_followable_item_handle(cx)
 5163                        })
 5164                    });
 5165
 5166                    view.map(|view| {
 5167                        entry.insert(FollowerView {
 5168                            view,
 5169                            location: None,
 5170                        })
 5171                    })
 5172                }
 5173            };
 5174
 5175            if let Some(item) = item {
 5176                item.view
 5177                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5178                item.view
 5179                    .update_agent_location(agent_location.position, window, cx);
 5180            }
 5181        } else {
 5182            follower_state.active_view_id = None;
 5183        }
 5184
 5185        self.leader_updated(CollaboratorId::Agent, window, cx);
 5186    }
 5187
 5188    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5189        let mut is_project_item = true;
 5190        let mut update = proto::UpdateActiveView::default();
 5191        if window.is_window_active() {
 5192            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5193
 5194            if let Some(item) = active_item
 5195                && item.item_focus_handle(cx).contains_focused(window, cx)
 5196            {
 5197                let leader_id = self
 5198                    .pane_for(&*item)
 5199                    .and_then(|pane| self.leader_for_pane(&pane));
 5200                let leader_peer_id = match leader_id {
 5201                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5202                    Some(CollaboratorId::Agent) | None => None,
 5203                };
 5204
 5205                if let Some(item) = item.to_followable_item_handle(cx) {
 5206                    let id = item
 5207                        .remote_id(&self.app_state.client, window, cx)
 5208                        .map(|id| id.to_proto());
 5209
 5210                    if let Some(id) = id
 5211                        && let Some(variant) = item.to_state_proto(window, cx)
 5212                    {
 5213                        let view = Some(proto::View {
 5214                            id: id.clone(),
 5215                            leader_id: leader_peer_id,
 5216                            variant: Some(variant),
 5217                            panel_id: panel_id.map(|id| id as i32),
 5218                        });
 5219
 5220                        is_project_item = item.is_project_item(window, cx);
 5221                        update = proto::UpdateActiveView {
 5222                            view,
 5223                            // TODO: Remove after version 0.145.x stabilizes.
 5224                            id,
 5225                            leader_id: leader_peer_id,
 5226                        };
 5227                    };
 5228                }
 5229            }
 5230        }
 5231
 5232        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5233        if active_view_id != self.last_active_view_id.as_ref() {
 5234            self.last_active_view_id = active_view_id.cloned();
 5235            self.update_followers(
 5236                is_project_item,
 5237                proto::update_followers::Variant::UpdateActiveView(update),
 5238                window,
 5239                cx,
 5240            );
 5241        }
 5242    }
 5243
 5244    fn active_item_for_followers(
 5245        &self,
 5246        window: &mut Window,
 5247        cx: &mut App,
 5248    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5249        let mut active_item = None;
 5250        let mut panel_id = None;
 5251        for dock in self.all_docks() {
 5252            if dock.focus_handle(cx).contains_focused(window, cx)
 5253                && let Some(panel) = dock.read(cx).active_panel()
 5254                && let Some(pane) = panel.pane(cx)
 5255                && let Some(item) = pane.read(cx).active_item()
 5256            {
 5257                active_item = Some(item);
 5258                panel_id = panel.remote_id();
 5259                break;
 5260            }
 5261        }
 5262
 5263        if active_item.is_none() {
 5264            active_item = self.active_pane().read(cx).active_item();
 5265        }
 5266        (active_item, panel_id)
 5267    }
 5268
 5269    fn update_followers(
 5270        &self,
 5271        project_only: bool,
 5272        update: proto::update_followers::Variant,
 5273        _: &mut Window,
 5274        cx: &mut App,
 5275    ) -> Option<()> {
 5276        // If this update only applies to for followers in the current project,
 5277        // then skip it unless this project is shared. If it applies to all
 5278        // followers, regardless of project, then set `project_id` to none,
 5279        // indicating that it goes to all followers.
 5280        let project_id = if project_only {
 5281            Some(self.project.read(cx).remote_id()?)
 5282        } else {
 5283            None
 5284        };
 5285        self.app_state().workspace_store.update(cx, |store, cx| {
 5286            store.update_followers(project_id, update, cx)
 5287        })
 5288    }
 5289
 5290    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5291        self.follower_states.iter().find_map(|(leader_id, state)| {
 5292            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5293                Some(*leader_id)
 5294            } else {
 5295                None
 5296            }
 5297        })
 5298    }
 5299
 5300    fn leader_updated(
 5301        &mut self,
 5302        leader_id: impl Into<CollaboratorId>,
 5303        window: &mut Window,
 5304        cx: &mut Context<Self>,
 5305    ) -> Option<Box<dyn ItemHandle>> {
 5306        cx.notify();
 5307
 5308        let leader_id = leader_id.into();
 5309        let (panel_id, item) = match leader_id {
 5310            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5311            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5312        };
 5313
 5314        let state = self.follower_states.get(&leader_id)?;
 5315        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5316        let pane;
 5317        if let Some(panel_id) = panel_id {
 5318            pane = self
 5319                .activate_panel_for_proto_id(panel_id, window, cx)?
 5320                .pane(cx)?;
 5321            let state = self.follower_states.get_mut(&leader_id)?;
 5322            state.dock_pane = Some(pane.clone());
 5323        } else {
 5324            pane = state.center_pane.clone();
 5325            let state = self.follower_states.get_mut(&leader_id)?;
 5326            if let Some(dock_pane) = state.dock_pane.take() {
 5327                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5328            }
 5329        }
 5330
 5331        pane.update(cx, |pane, cx| {
 5332            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5333            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5334                pane.activate_item(index, false, false, window, cx);
 5335            } else {
 5336                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5337            }
 5338
 5339            if focus_active_item {
 5340                pane.focus_active_item(window, cx)
 5341            }
 5342        });
 5343
 5344        Some(item)
 5345    }
 5346
 5347    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5348        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5349        let active_view_id = state.active_view_id?;
 5350        Some(
 5351            state
 5352                .items_by_leader_view_id
 5353                .get(&active_view_id)?
 5354                .view
 5355                .boxed_clone(),
 5356        )
 5357    }
 5358
 5359    fn active_item_for_peer(
 5360        &self,
 5361        peer_id: PeerId,
 5362        window: &mut Window,
 5363        cx: &mut Context<Self>,
 5364    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5365        let call = self.active_call()?;
 5366        let room = call.read(cx).room()?.read(cx);
 5367        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5368        let leader_in_this_app;
 5369        let leader_in_this_project;
 5370        match participant.location {
 5371            call::ParticipantLocation::SharedProject { project_id } => {
 5372                leader_in_this_app = true;
 5373                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5374            }
 5375            call::ParticipantLocation::UnsharedProject => {
 5376                leader_in_this_app = true;
 5377                leader_in_this_project = false;
 5378            }
 5379            call::ParticipantLocation::External => {
 5380                leader_in_this_app = false;
 5381                leader_in_this_project = false;
 5382            }
 5383        };
 5384        let state = self.follower_states.get(&peer_id.into())?;
 5385        let mut item_to_activate = None;
 5386        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5387            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5388                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5389            {
 5390                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5391            }
 5392        } else if let Some(shared_screen) =
 5393            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5394        {
 5395            item_to_activate = Some((None, Box::new(shared_screen)));
 5396        }
 5397        item_to_activate
 5398    }
 5399
 5400    fn shared_screen_for_peer(
 5401        &self,
 5402        peer_id: PeerId,
 5403        pane: &Entity<Pane>,
 5404        window: &mut Window,
 5405        cx: &mut App,
 5406    ) -> Option<Entity<SharedScreen>> {
 5407        let call = self.active_call()?;
 5408        let room = call.read(cx).room()?.clone();
 5409        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5410        let track = participant.video_tracks.values().next()?.clone();
 5411        let user = participant.user.clone();
 5412
 5413        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5414            if item.read(cx).peer_id == peer_id {
 5415                return Some(item);
 5416            }
 5417        }
 5418
 5419        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5420    }
 5421
 5422    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5423        if window.is_window_active() {
 5424            self.update_active_view_for_followers(window, cx);
 5425
 5426            if let Some(database_id) = self.database_id {
 5427                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5428                    .detach();
 5429            }
 5430        } else {
 5431            for pane in &self.panes {
 5432                pane.update(cx, |pane, cx| {
 5433                    if let Some(item) = pane.active_item() {
 5434                        item.workspace_deactivated(window, cx);
 5435                    }
 5436                    for item in pane.items() {
 5437                        if matches!(
 5438                            item.workspace_settings(cx).autosave,
 5439                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5440                        ) {
 5441                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5442                                .detach_and_log_err(cx);
 5443                        }
 5444                    }
 5445                });
 5446            }
 5447        }
 5448    }
 5449
 5450    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5451        self.active_call.as_ref().map(|(call, _)| call)
 5452    }
 5453
 5454    fn on_active_call_event(
 5455        &mut self,
 5456        _: &Entity<ActiveCall>,
 5457        event: &call::room::Event,
 5458        window: &mut Window,
 5459        cx: &mut Context<Self>,
 5460    ) {
 5461        match event {
 5462            call::room::Event::ParticipantLocationChanged { participant_id }
 5463            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5464                self.leader_updated(participant_id, window, cx);
 5465            }
 5466            _ => {}
 5467        }
 5468    }
 5469
 5470    pub fn database_id(&self) -> Option<WorkspaceId> {
 5471        self.database_id
 5472    }
 5473
 5474    pub fn session_id(&self) -> Option<String> {
 5475        self.session_id.clone()
 5476    }
 5477
 5478    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5479        let project = self.project().read(cx);
 5480        project
 5481            .visible_worktrees(cx)
 5482            .map(|worktree| worktree.read(cx).abs_path())
 5483            .collect::<Vec<_>>()
 5484    }
 5485
 5486    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5487        match member {
 5488            Member::Axis(PaneAxis { members, .. }) => {
 5489                for child in members.iter() {
 5490                    self.remove_panes(child.clone(), window, cx)
 5491                }
 5492            }
 5493            Member::Pane(pane) => {
 5494                self.force_remove_pane(&pane, &None, window, cx);
 5495            }
 5496        }
 5497    }
 5498
 5499    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5500        self.session_id.take();
 5501        self.serialize_workspace_internal(window, cx)
 5502    }
 5503
 5504    fn force_remove_pane(
 5505        &mut self,
 5506        pane: &Entity<Pane>,
 5507        focus_on: &Option<Entity<Pane>>,
 5508        window: &mut Window,
 5509        cx: &mut Context<Workspace>,
 5510    ) {
 5511        self.panes.retain(|p| p != pane);
 5512        if let Some(focus_on) = focus_on {
 5513            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5514        } else if self.active_pane() == pane {
 5515            self.panes
 5516                .last()
 5517                .unwrap()
 5518                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5519        }
 5520        if self.last_active_center_pane == Some(pane.downgrade()) {
 5521            self.last_active_center_pane = None;
 5522        }
 5523        cx.notify();
 5524    }
 5525
 5526    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5527        if self._schedule_serialize_workspace.is_none() {
 5528            self._schedule_serialize_workspace =
 5529                Some(cx.spawn_in(window, async move |this, cx| {
 5530                    cx.background_executor()
 5531                        .timer(SERIALIZATION_THROTTLE_TIME)
 5532                        .await;
 5533                    this.update_in(cx, |this, window, cx| {
 5534                        this.serialize_workspace_internal(window, cx).detach();
 5535                        this._schedule_serialize_workspace.take();
 5536                    })
 5537                    .log_err();
 5538                }));
 5539        }
 5540    }
 5541
 5542    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5543        let Some(database_id) = self.database_id() else {
 5544            return Task::ready(());
 5545        };
 5546
 5547        fn serialize_pane_handle(
 5548            pane_handle: &Entity<Pane>,
 5549            window: &mut Window,
 5550            cx: &mut App,
 5551        ) -> SerializedPane {
 5552            let (items, active, pinned_count) = {
 5553                let pane = pane_handle.read(cx);
 5554                let active_item_id = pane.active_item().map(|item| item.item_id());
 5555                (
 5556                    pane.items()
 5557                        .filter_map(|handle| {
 5558                            let handle = handle.to_serializable_item_handle(cx)?;
 5559
 5560                            Some(SerializedItem {
 5561                                kind: Arc::from(handle.serialized_item_kind()),
 5562                                item_id: handle.item_id().as_u64(),
 5563                                active: Some(handle.item_id()) == active_item_id,
 5564                                preview: pane.is_active_preview_item(handle.item_id()),
 5565                            })
 5566                        })
 5567                        .collect::<Vec<_>>(),
 5568                    pane.has_focus(window, cx),
 5569                    pane.pinned_count(),
 5570                )
 5571            };
 5572
 5573            SerializedPane::new(items, active, pinned_count)
 5574        }
 5575
 5576        fn build_serialized_pane_group(
 5577            pane_group: &Member,
 5578            window: &mut Window,
 5579            cx: &mut App,
 5580        ) -> SerializedPaneGroup {
 5581            match pane_group {
 5582                Member::Axis(PaneAxis {
 5583                    axis,
 5584                    members,
 5585                    flexes,
 5586                    bounding_boxes: _,
 5587                }) => SerializedPaneGroup::Group {
 5588                    axis: SerializedAxis(*axis),
 5589                    children: members
 5590                        .iter()
 5591                        .map(|member| build_serialized_pane_group(member, window, cx))
 5592                        .collect::<Vec<_>>(),
 5593                    flexes: Some(flexes.lock().clone()),
 5594                },
 5595                Member::Pane(pane_handle) => {
 5596                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5597                }
 5598            }
 5599        }
 5600
 5601        fn build_serialized_docks(
 5602            this: &Workspace,
 5603            window: &mut Window,
 5604            cx: &mut App,
 5605        ) -> DockStructure {
 5606            let left_dock = this.left_dock.read(cx);
 5607            let left_visible = left_dock.is_open();
 5608            let left_active_panel = left_dock
 5609                .active_panel()
 5610                .map(|panel| panel.persistent_name().to_string());
 5611            let left_dock_zoom = left_dock
 5612                .active_panel()
 5613                .map(|panel| panel.is_zoomed(window, cx))
 5614                .unwrap_or(false);
 5615
 5616            let right_dock = this.right_dock.read(cx);
 5617            let right_visible = right_dock.is_open();
 5618            let right_active_panel = right_dock
 5619                .active_panel()
 5620                .map(|panel| panel.persistent_name().to_string());
 5621            let right_dock_zoom = right_dock
 5622                .active_panel()
 5623                .map(|panel| panel.is_zoomed(window, cx))
 5624                .unwrap_or(false);
 5625
 5626            let bottom_dock = this.bottom_dock.read(cx);
 5627            let bottom_visible = bottom_dock.is_open();
 5628            let bottom_active_panel = bottom_dock
 5629                .active_panel()
 5630                .map(|panel| panel.persistent_name().to_string());
 5631            let bottom_dock_zoom = bottom_dock
 5632                .active_panel()
 5633                .map(|panel| panel.is_zoomed(window, cx))
 5634                .unwrap_or(false);
 5635
 5636            DockStructure {
 5637                left: DockData {
 5638                    visible: left_visible,
 5639                    active_panel: left_active_panel,
 5640                    zoom: left_dock_zoom,
 5641                },
 5642                right: DockData {
 5643                    visible: right_visible,
 5644                    active_panel: right_active_panel,
 5645                    zoom: right_dock_zoom,
 5646                },
 5647                bottom: DockData {
 5648                    visible: bottom_visible,
 5649                    active_panel: bottom_active_panel,
 5650                    zoom: bottom_dock_zoom,
 5651                },
 5652            }
 5653        }
 5654
 5655        match self.serialize_workspace_location(cx) {
 5656            WorkspaceLocation::Location(location, paths) => {
 5657                let breakpoints = self.project.update(cx, |project, cx| {
 5658                    project
 5659                        .breakpoint_store()
 5660                        .read(cx)
 5661                        .all_source_breakpoints(cx)
 5662                });
 5663                let user_toolchains = self
 5664                    .project
 5665                    .read(cx)
 5666                    .user_toolchains(cx)
 5667                    .unwrap_or_default();
 5668
 5669                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 5670                let docks = build_serialized_docks(self, window, cx);
 5671                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 5672
 5673                let serialized_workspace = SerializedWorkspace {
 5674                    id: database_id,
 5675                    location,
 5676                    paths,
 5677                    center_group,
 5678                    window_bounds,
 5679                    display: Default::default(),
 5680                    docks,
 5681                    centered_layout: self.centered_layout,
 5682                    session_id: self.session_id.clone(),
 5683                    breakpoints,
 5684                    window_id: Some(window.window_handle().window_id().as_u64()),
 5685                    user_toolchains,
 5686                };
 5687
 5688                window.spawn(cx, async move |_| {
 5689                    persistence::DB.save_workspace(serialized_workspace).await;
 5690                })
 5691            }
 5692            WorkspaceLocation::DetachFromSession => {
 5693                let window_bounds = SerializedWindowBounds(window.window_bounds());
 5694                let display = window.display(cx).and_then(|d| d.uuid().ok());
 5695                window.spawn(cx, async move |_| {
 5696                    persistence::DB
 5697                        .set_window_open_status(
 5698                            database_id,
 5699                            window_bounds,
 5700                            display.unwrap_or_default(),
 5701                        )
 5702                        .await
 5703                        .log_err();
 5704                    persistence::DB
 5705                        .set_session_id(database_id, None)
 5706                        .await
 5707                        .log_err();
 5708                })
 5709            }
 5710            WorkspaceLocation::None => Task::ready(()),
 5711        }
 5712    }
 5713
 5714    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 5715        let paths = PathList::new(&self.root_paths(cx));
 5716        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 5717            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 5718        } else if self.project.read(cx).is_local() {
 5719            if !paths.is_empty() {
 5720                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 5721            } else {
 5722                WorkspaceLocation::DetachFromSession
 5723            }
 5724        } else {
 5725            WorkspaceLocation::None
 5726        }
 5727    }
 5728
 5729    fn update_history(&self, cx: &mut App) {
 5730        let Some(id) = self.database_id() else {
 5731            return;
 5732        };
 5733        if !self.project.read(cx).is_local() {
 5734            return;
 5735        }
 5736        if let Some(manager) = HistoryManager::global(cx) {
 5737            let paths = PathList::new(&self.root_paths(cx));
 5738            manager.update(cx, |this, cx| {
 5739                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 5740            });
 5741        }
 5742    }
 5743
 5744    async fn serialize_items(
 5745        this: &WeakEntity<Self>,
 5746        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 5747        cx: &mut AsyncWindowContext,
 5748    ) -> Result<()> {
 5749        const CHUNK_SIZE: usize = 200;
 5750
 5751        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 5752
 5753        while let Some(items_received) = serializable_items.next().await {
 5754            let unique_items =
 5755                items_received
 5756                    .into_iter()
 5757                    .fold(HashMap::default(), |mut acc, item| {
 5758                        acc.entry(item.item_id()).or_insert(item);
 5759                        acc
 5760                    });
 5761
 5762            // We use into_iter() here so that the references to the items are moved into
 5763            // the tasks and not kept alive while we're sleeping.
 5764            for (_, item) in unique_items.into_iter() {
 5765                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 5766                    item.serialize(workspace, false, window, cx)
 5767                }) {
 5768                    cx.background_spawn(async move { task.await.log_err() })
 5769                        .detach();
 5770                }
 5771            }
 5772
 5773            cx.background_executor()
 5774                .timer(SERIALIZATION_THROTTLE_TIME)
 5775                .await;
 5776        }
 5777
 5778        Ok(())
 5779    }
 5780
 5781    pub(crate) fn enqueue_item_serialization(
 5782        &mut self,
 5783        item: Box<dyn SerializableItemHandle>,
 5784    ) -> Result<()> {
 5785        self.serializable_items_tx
 5786            .unbounded_send(item)
 5787            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 5788    }
 5789
 5790    pub(crate) fn load_workspace(
 5791        serialized_workspace: SerializedWorkspace,
 5792        paths_to_open: Vec<Option<ProjectPath>>,
 5793        window: &mut Window,
 5794        cx: &mut Context<Workspace>,
 5795    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 5796        cx.spawn_in(window, async move |workspace, cx| {
 5797            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 5798
 5799            let mut center_group = None;
 5800            let mut center_items = None;
 5801
 5802            // Traverse the splits tree and add to things
 5803            if let Some((group, active_pane, items)) = serialized_workspace
 5804                .center_group
 5805                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 5806                .await
 5807            {
 5808                center_items = Some(items);
 5809                center_group = Some((group, active_pane))
 5810            }
 5811
 5812            let mut items_by_project_path = HashMap::default();
 5813            let mut item_ids_by_kind = HashMap::default();
 5814            let mut all_deserialized_items = Vec::default();
 5815            cx.update(|_, cx| {
 5816                for item in center_items.unwrap_or_default().into_iter().flatten() {
 5817                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 5818                        item_ids_by_kind
 5819                            .entry(serializable_item_handle.serialized_item_kind())
 5820                            .or_insert(Vec::new())
 5821                            .push(item.item_id().as_u64() as ItemId);
 5822                    }
 5823
 5824                    if let Some(project_path) = item.project_path(cx) {
 5825                        items_by_project_path.insert(project_path, item.clone());
 5826                    }
 5827                    all_deserialized_items.push(item);
 5828                }
 5829            })?;
 5830
 5831            let opened_items = paths_to_open
 5832                .into_iter()
 5833                .map(|path_to_open| {
 5834                    path_to_open
 5835                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 5836                })
 5837                .collect::<Vec<_>>();
 5838
 5839            // Remove old panes from workspace panes list
 5840            workspace.update_in(cx, |workspace, window, cx| {
 5841                if let Some((center_group, active_pane)) = center_group {
 5842                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 5843
 5844                    // Swap workspace center group
 5845                    workspace.center = PaneGroup::with_root(center_group);
 5846                    workspace.center.set_is_center(true);
 5847                    workspace.center.mark_positions(cx);
 5848
 5849                    if let Some(active_pane) = active_pane {
 5850                        workspace.set_active_pane(&active_pane, window, cx);
 5851                        cx.focus_self(window);
 5852                    } else {
 5853                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 5854                    }
 5855                }
 5856
 5857                let docks = serialized_workspace.docks;
 5858
 5859                for (dock, serialized_dock) in [
 5860                    (&mut workspace.right_dock, docks.right),
 5861                    (&mut workspace.left_dock, docks.left),
 5862                    (&mut workspace.bottom_dock, docks.bottom),
 5863                ]
 5864                .iter_mut()
 5865                {
 5866                    dock.update(cx, |dock, cx| {
 5867                        dock.serialized_dock = Some(serialized_dock.clone());
 5868                        dock.restore_state(window, cx);
 5869                    });
 5870                }
 5871
 5872                cx.notify();
 5873            })?;
 5874
 5875            let _ = project
 5876                .update(cx, |project, cx| {
 5877                    project
 5878                        .breakpoint_store()
 5879                        .update(cx, |breakpoint_store, cx| {
 5880                            breakpoint_store
 5881                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 5882                        })
 5883                })?
 5884                .await;
 5885
 5886            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 5887            // after loading the items, we might have different items and in order to avoid
 5888            // the database filling up, we delete items that haven't been loaded now.
 5889            //
 5890            // The items that have been loaded, have been saved after they've been added to the workspace.
 5891            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 5892                item_ids_by_kind
 5893                    .into_iter()
 5894                    .map(|(item_kind, loaded_items)| {
 5895                        SerializableItemRegistry::cleanup(
 5896                            item_kind,
 5897                            serialized_workspace.id,
 5898                            loaded_items,
 5899                            window,
 5900                            cx,
 5901                        )
 5902                        .log_err()
 5903                    })
 5904                    .collect::<Vec<_>>()
 5905            })?;
 5906
 5907            futures::future::join_all(clean_up_tasks).await;
 5908
 5909            workspace
 5910                .update_in(cx, |workspace, window, cx| {
 5911                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 5912                    workspace.serialize_workspace_internal(window, cx).detach();
 5913
 5914                    // Ensure that we mark the window as edited if we did load dirty items
 5915                    workspace.update_window_edited(window, cx);
 5916                })
 5917                .ok();
 5918
 5919            Ok(opened_items)
 5920        })
 5921    }
 5922
 5923    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 5924        self.add_workspace_actions_listeners(div, window, cx)
 5925            .on_action(cx.listener(
 5926                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 5927                    for action in &action_sequence.0 {
 5928                        window.dispatch_action(action.boxed_clone(), cx);
 5929                    }
 5930                },
 5931            ))
 5932            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 5933            .on_action(cx.listener(Self::close_all_items_and_panes))
 5934            .on_action(cx.listener(Self::save_all))
 5935            .on_action(cx.listener(Self::send_keystrokes))
 5936            .on_action(cx.listener(Self::add_folder_to_project))
 5937            .on_action(cx.listener(Self::follow_next_collaborator))
 5938            .on_action(cx.listener(Self::close_window))
 5939            .on_action(cx.listener(Self::activate_pane_at_index))
 5940            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 5941            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 5942            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 5943            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 5944                let pane = workspace.active_pane().clone();
 5945                workspace.unfollow_in_pane(&pane, window, cx);
 5946            }))
 5947            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 5948                workspace
 5949                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 5950                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5951            }))
 5952            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 5953                workspace
 5954                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 5955                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5956            }))
 5957            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 5958                workspace
 5959                    .save_active_item(SaveIntent::SaveAs, window, cx)
 5960                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 5961            }))
 5962            .on_action(
 5963                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 5964                    workspace.activate_previous_pane(window, cx)
 5965                }),
 5966            )
 5967            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5968                workspace.activate_next_pane(window, cx)
 5969            }))
 5970            .on_action(
 5971                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 5972                    workspace.activate_next_window(cx)
 5973                }),
 5974            )
 5975            .on_action(
 5976                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 5977                    workspace.activate_previous_window(cx)
 5978                }),
 5979            )
 5980            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 5981                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 5982            }))
 5983            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 5984                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 5985            }))
 5986            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 5987                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 5988            }))
 5989            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 5990                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 5991            }))
 5992            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 5993                workspace.activate_next_pane(window, cx)
 5994            }))
 5995            .on_action(cx.listener(
 5996                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 5997                    workspace.move_item_to_pane_in_direction(action, window, cx)
 5998                },
 5999            ))
 6000            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6001                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6002            }))
 6003            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6004                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6005            }))
 6006            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6007                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6008            }))
 6009            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6010                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6011            }))
 6012            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6013                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6014                    SplitDirection::Down,
 6015                    SplitDirection::Up,
 6016                    SplitDirection::Right,
 6017                    SplitDirection::Left,
 6018                ];
 6019                for dir in DIRECTION_PRIORITY {
 6020                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6021                        workspace.swap_pane_in_direction(dir, cx);
 6022                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6023                        break;
 6024                    }
 6025                }
 6026            }))
 6027            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6028                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6029            }))
 6030            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6031                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6032            }))
 6033            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6034                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6035            }))
 6036            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6037                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6038            }))
 6039            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6040                this.toggle_dock(DockPosition::Left, window, cx);
 6041            }))
 6042            .on_action(cx.listener(
 6043                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6044                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6045                },
 6046            ))
 6047            .on_action(cx.listener(
 6048                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6049                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6050                },
 6051            ))
 6052            .on_action(cx.listener(
 6053                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6054                    if !workspace.close_active_dock(window, cx) {
 6055                        cx.propagate();
 6056                    }
 6057                },
 6058            ))
 6059            .on_action(
 6060                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6061                    workspace.close_all_docks(window, cx);
 6062                }),
 6063            )
 6064            .on_action(cx.listener(Self::toggle_all_docks))
 6065            .on_action(cx.listener(
 6066                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6067                    workspace.clear_all_notifications(cx);
 6068                },
 6069            ))
 6070            .on_action(cx.listener(
 6071                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6072                    workspace.clear_navigation_history(window, cx);
 6073                },
 6074            ))
 6075            .on_action(cx.listener(
 6076                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6077                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6078                        workspace.suppress_notification(&notification_id, cx);
 6079                    }
 6080                },
 6081            ))
 6082            .on_action(cx.listener(
 6083                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6084                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6085                },
 6086            ))
 6087            .on_action(
 6088                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6089                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6090                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6091                            trusted_worktrees.clear_trusted_paths()
 6092                        });
 6093                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6094                        cx.spawn(async move |_, cx| {
 6095                            if clear_task.await.log_err().is_some() {
 6096                                cx.update(|cx| reload(cx)).ok();
 6097                            }
 6098                        })
 6099                        .detach();
 6100                    }
 6101                }),
 6102            )
 6103            .on_action(cx.listener(
 6104                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6105                    workspace.reopen_closed_item(window, cx).detach();
 6106                },
 6107            ))
 6108            .on_action(cx.listener(
 6109                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6110                    for dock in workspace.all_docks() {
 6111                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6112                            let Some(panel) = dock.read(cx).active_panel() else {
 6113                                return;
 6114                            };
 6115
 6116                            // Set to `None`, then the size will fall back to the default.
 6117                            panel.clone().set_size(None, window, cx);
 6118
 6119                            return;
 6120                        }
 6121                    }
 6122                },
 6123            ))
 6124            .on_action(cx.listener(
 6125                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6126                    for dock in workspace.all_docks() {
 6127                        if let Some(panel) = dock.read(cx).visible_panel() {
 6128                            // Set to `None`, then the size will fall back to the default.
 6129                            panel.clone().set_size(None, window, cx);
 6130                        }
 6131                    }
 6132                },
 6133            ))
 6134            .on_action(cx.listener(
 6135                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6136                    adjust_active_dock_size_by_px(
 6137                        px_with_ui_font_fallback(act.px, cx),
 6138                        workspace,
 6139                        window,
 6140                        cx,
 6141                    );
 6142                },
 6143            ))
 6144            .on_action(cx.listener(
 6145                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6146                    adjust_active_dock_size_by_px(
 6147                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6148                        workspace,
 6149                        window,
 6150                        cx,
 6151                    );
 6152                },
 6153            ))
 6154            .on_action(cx.listener(
 6155                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6156                    adjust_open_docks_size_by_px(
 6157                        px_with_ui_font_fallback(act.px, cx),
 6158                        workspace,
 6159                        window,
 6160                        cx,
 6161                    );
 6162                },
 6163            ))
 6164            .on_action(cx.listener(
 6165                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6166                    adjust_open_docks_size_by_px(
 6167                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6168                        workspace,
 6169                        window,
 6170                        cx,
 6171                    );
 6172                },
 6173            ))
 6174            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6175            .on_action(cx.listener(
 6176                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6177                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6178                        let dock = active_dock.read(cx);
 6179                        if let Some(active_panel) = dock.active_panel() {
 6180                            if active_panel.pane(cx).is_none() {
 6181                                let mut recent_pane: Option<Entity<Pane>> = None;
 6182                                let mut recent_timestamp = 0;
 6183                                for pane_handle in workspace.panes() {
 6184                                    let pane = pane_handle.read(cx);
 6185                                    for entry in pane.activation_history() {
 6186                                        if entry.timestamp > recent_timestamp {
 6187                                            recent_timestamp = entry.timestamp;
 6188                                            recent_pane = Some(pane_handle.clone());
 6189                                        }
 6190                                    }
 6191                                }
 6192
 6193                                if let Some(pane) = recent_pane {
 6194                                    pane.update(cx, |pane, cx| {
 6195                                        let current_index = pane.active_item_index();
 6196                                        let items_len = pane.items_len();
 6197                                        if items_len > 0 {
 6198                                            let next_index = if current_index + 1 < items_len {
 6199                                                current_index + 1
 6200                                            } else {
 6201                                                0
 6202                                            };
 6203                                            pane.activate_item(
 6204                                                next_index, false, false, window, cx,
 6205                                            );
 6206                                        }
 6207                                    });
 6208                                    return;
 6209                                }
 6210                            }
 6211                        }
 6212                    }
 6213                    cx.propagate();
 6214                },
 6215            ))
 6216            .on_action(cx.listener(
 6217                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6218                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6219                        let dock = active_dock.read(cx);
 6220                        if let Some(active_panel) = dock.active_panel() {
 6221                            if active_panel.pane(cx).is_none() {
 6222                                let mut recent_pane: Option<Entity<Pane>> = None;
 6223                                let mut recent_timestamp = 0;
 6224                                for pane_handle in workspace.panes() {
 6225                                    let pane = pane_handle.read(cx);
 6226                                    for entry in pane.activation_history() {
 6227                                        if entry.timestamp > recent_timestamp {
 6228                                            recent_timestamp = entry.timestamp;
 6229                                            recent_pane = Some(pane_handle.clone());
 6230                                        }
 6231                                    }
 6232                                }
 6233
 6234                                if let Some(pane) = recent_pane {
 6235                                    pane.update(cx, |pane, cx| {
 6236                                        let current_index = pane.active_item_index();
 6237                                        let items_len = pane.items_len();
 6238                                        if items_len > 0 {
 6239                                            let prev_index = if current_index > 0 {
 6240                                                current_index - 1
 6241                                            } else {
 6242                                                items_len.saturating_sub(1)
 6243                                            };
 6244                                            pane.activate_item(
 6245                                                prev_index, false, false, window, cx,
 6246                                            );
 6247                                        }
 6248                                    });
 6249                                    return;
 6250                                }
 6251                            }
 6252                        }
 6253                    }
 6254                    cx.propagate();
 6255                },
 6256            ))
 6257            .on_action(cx.listener(Workspace::cancel))
 6258    }
 6259
 6260    #[cfg(any(test, feature = "test-support"))]
 6261    pub fn set_random_database_id(&mut self) {
 6262        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6263    }
 6264
 6265    #[cfg(any(test, feature = "test-support"))]
 6266    pub fn test_new(project: Entity<Project>, window: &mut Window, cx: &mut Context<Self>) -> Self {
 6267        use node_runtime::NodeRuntime;
 6268        use session::Session;
 6269
 6270        let client = project.read(cx).client();
 6271        let user_store = project.read(cx).user_store();
 6272        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6273        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6274        window.activate_window();
 6275        let app_state = Arc::new(AppState {
 6276            languages: project.read(cx).languages().clone(),
 6277            workspace_store,
 6278            client,
 6279            user_store,
 6280            fs: project.read(cx).fs().clone(),
 6281            build_window_options: |_, _| Default::default(),
 6282            node_runtime: NodeRuntime::unavailable(),
 6283            session,
 6284        });
 6285        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6286        workspace
 6287            .active_pane
 6288            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6289        workspace
 6290    }
 6291
 6292    pub fn register_action<A: Action>(
 6293        &mut self,
 6294        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6295    ) -> &mut Self {
 6296        let callback = Arc::new(callback);
 6297
 6298        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6299            let callback = callback.clone();
 6300            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6301                (callback)(workspace, event, window, cx)
 6302            }))
 6303        }));
 6304        self
 6305    }
 6306    pub fn register_action_renderer(
 6307        &mut self,
 6308        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6309    ) -> &mut Self {
 6310        self.workspace_actions.push(Box::new(callback));
 6311        self
 6312    }
 6313
 6314    fn add_workspace_actions_listeners(
 6315        &self,
 6316        mut div: Div,
 6317        window: &mut Window,
 6318        cx: &mut Context<Self>,
 6319    ) -> Div {
 6320        for action in self.workspace_actions.iter() {
 6321            div = (action)(div, self, window, cx)
 6322        }
 6323        div
 6324    }
 6325
 6326    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6327        self.modal_layer.read(cx).has_active_modal()
 6328    }
 6329
 6330    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6331        self.modal_layer.read(cx).active_modal()
 6332    }
 6333
 6334    pub fn is_modal_open<V: 'static>(&self, cx: &App) -> bool {
 6335        self.modal_layer.read(cx).active_modal::<V>().is_some()
 6336    }
 6337
 6338    pub fn set_next_modal_placement(&mut self, placement: ModalPlacement) {
 6339        self.next_modal_placement = Some(placement);
 6340    }
 6341
 6342    fn take_next_modal_placement(&mut self) -> ModalPlacement {
 6343        self.next_modal_placement.take().unwrap_or_default()
 6344    }
 6345
 6346    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6347    where
 6348        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6349    {
 6350        let placement = self.take_next_modal_placement();
 6351        self.modal_layer.update(cx, |modal_layer, cx| {
 6352            modal_layer.toggle_modal_with_placement(window, cx, placement, build)
 6353        })
 6354    }
 6355
 6356    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6357        self.modal_layer
 6358            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6359    }
 6360
 6361    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6362        self.toast_layer
 6363            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6364    }
 6365
 6366    pub fn toggle_centered_layout(
 6367        &mut self,
 6368        _: &ToggleCenteredLayout,
 6369        _: &mut Window,
 6370        cx: &mut Context<Self>,
 6371    ) {
 6372        self.centered_layout = !self.centered_layout;
 6373        if let Some(database_id) = self.database_id() {
 6374            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6375                .detach_and_log_err(cx);
 6376        }
 6377        cx.notify();
 6378    }
 6379
 6380    fn adjust_padding(padding: Option<f32>) -> f32 {
 6381        padding
 6382            .unwrap_or(CenteredPaddingSettings::default().0)
 6383            .clamp(
 6384                CenteredPaddingSettings::MIN_PADDING,
 6385                CenteredPaddingSettings::MAX_PADDING,
 6386            )
 6387    }
 6388
 6389    fn render_dock(
 6390        &self,
 6391        position: DockPosition,
 6392        dock: &Entity<Dock>,
 6393        window: &mut Window,
 6394        cx: &mut App,
 6395    ) -> Option<Div> {
 6396        if self.zoomed_position == Some(position) {
 6397            return None;
 6398        }
 6399
 6400        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6401            let pane = panel.pane(cx)?;
 6402            let follower_states = &self.follower_states;
 6403            leader_border_for_pane(follower_states, &pane, window, cx)
 6404        });
 6405
 6406        Some(
 6407            div()
 6408                .flex()
 6409                .flex_none()
 6410                .overflow_hidden()
 6411                .child(dock.clone())
 6412                .children(leader_border),
 6413        )
 6414    }
 6415
 6416    pub fn for_window(window: &mut Window, _: &mut App) -> Option<Entity<Workspace>> {
 6417        window.root().flatten()
 6418    }
 6419
 6420    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6421        self.zoomed.as_ref()
 6422    }
 6423
 6424    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6425        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6426            return;
 6427        };
 6428        let windows = cx.windows();
 6429        let next_window =
 6430            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6431                || {
 6432                    windows
 6433                        .iter()
 6434                        .cycle()
 6435                        .skip_while(|window| window.window_id() != current_window_id)
 6436                        .nth(1)
 6437                },
 6438            );
 6439
 6440        if let Some(window) = next_window {
 6441            window
 6442                .update(cx, |_, window, _| window.activate_window())
 6443                .ok();
 6444        }
 6445    }
 6446
 6447    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6448        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6449            return;
 6450        };
 6451        let windows = cx.windows();
 6452        let prev_window =
 6453            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6454                || {
 6455                    windows
 6456                        .iter()
 6457                        .rev()
 6458                        .cycle()
 6459                        .skip_while(|window| window.window_id() != current_window_id)
 6460                        .nth(1)
 6461                },
 6462            );
 6463
 6464        if let Some(window) = prev_window {
 6465            window
 6466                .update(cx, |_, window, _| window.activate_window())
 6467                .ok();
 6468        }
 6469    }
 6470
 6471    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6472        if cx.stop_active_drag(window) {
 6473        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6474            dismiss_app_notification(&notification_id, cx);
 6475        } else {
 6476            cx.propagate();
 6477        }
 6478    }
 6479
 6480    fn adjust_dock_size_by_px(
 6481        &mut self,
 6482        panel_size: Pixels,
 6483        dock_pos: DockPosition,
 6484        px: Pixels,
 6485        window: &mut Window,
 6486        cx: &mut Context<Self>,
 6487    ) {
 6488        match dock_pos {
 6489            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6490            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6491            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6492        }
 6493    }
 6494
 6495    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6496        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6497
 6498        self.left_dock.update(cx, |left_dock, cx| {
 6499            if WorkspaceSettings::get_global(cx)
 6500                .resize_all_panels_in_dock
 6501                .contains(&DockPosition::Left)
 6502            {
 6503                left_dock.resize_all_panels(Some(size), window, cx);
 6504            } else {
 6505                left_dock.resize_active_panel(Some(size), window, cx);
 6506            }
 6507        });
 6508        self.clamp_utility_pane_widths(window, cx);
 6509    }
 6510
 6511    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6512        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6513        self.left_dock.read_with(cx, |left_dock, cx| {
 6514            let left_dock_size = left_dock
 6515                .active_panel_size(window, cx)
 6516                .unwrap_or(Pixels::ZERO);
 6517            if left_dock_size + size > self.bounds.right() {
 6518                size = self.bounds.right() - left_dock_size
 6519            }
 6520        });
 6521        self.right_dock.update(cx, |right_dock, cx| {
 6522            if WorkspaceSettings::get_global(cx)
 6523                .resize_all_panels_in_dock
 6524                .contains(&DockPosition::Right)
 6525            {
 6526                right_dock.resize_all_panels(Some(size), window, cx);
 6527            } else {
 6528                right_dock.resize_active_panel(Some(size), window, cx);
 6529            }
 6530        });
 6531        self.clamp_utility_pane_widths(window, cx);
 6532    }
 6533
 6534    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6535        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6536        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6537            if WorkspaceSettings::get_global(cx)
 6538                .resize_all_panels_in_dock
 6539                .contains(&DockPosition::Bottom)
 6540            {
 6541                bottom_dock.resize_all_panels(Some(size), window, cx);
 6542            } else {
 6543                bottom_dock.resize_active_panel(Some(size), window, cx);
 6544            }
 6545        });
 6546        self.clamp_utility_pane_widths(window, cx);
 6547    }
 6548
 6549    fn max_utility_pane_width(&self, window: &Window, cx: &App) -> Pixels {
 6550        let left_dock_width = self
 6551            .left_dock
 6552            .read(cx)
 6553            .active_panel_size(window, cx)
 6554            .unwrap_or(px(0.0));
 6555        let right_dock_width = self
 6556            .right_dock
 6557            .read(cx)
 6558            .active_panel_size(window, cx)
 6559            .unwrap_or(px(0.0));
 6560        let center_pane_width = self.bounds.size.width - left_dock_width - right_dock_width;
 6561        center_pane_width - px(10.0)
 6562    }
 6563
 6564    fn clamp_utility_pane_widths(&mut self, window: &mut Window, cx: &mut App) {
 6565        let max_width = self.max_utility_pane_width(window, cx);
 6566
 6567        // Clamp left slot utility pane if it exists
 6568        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Left) {
 6569            let current_width = handle.width(cx);
 6570            if current_width > max_width {
 6571                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6572            }
 6573        }
 6574
 6575        // Clamp right slot utility pane if it exists
 6576        if let Some(handle) = self.utility_pane(UtilityPaneSlot::Right) {
 6577            let current_width = handle.width(cx);
 6578            if current_width > max_width {
 6579                handle.set_width(Some(max_width.max(UTILITY_PANE_MIN_WIDTH)), cx);
 6580            }
 6581        }
 6582    }
 6583
 6584    fn toggle_edit_predictions_all_files(
 6585        &mut self,
 6586        _: &ToggleEditPrediction,
 6587        _window: &mut Window,
 6588        cx: &mut Context<Self>,
 6589    ) {
 6590        let fs = self.project().read(cx).fs().clone();
 6591        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6592        update_settings_file(fs, cx, move |file, _| {
 6593            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6594        });
 6595    }
 6596
 6597    pub fn show_worktree_trust_security_modal(
 6598        &mut self,
 6599        toggle: bool,
 6600        window: &mut Window,
 6601        cx: &mut Context<Self>,
 6602    ) {
 6603        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6604            if toggle {
 6605                security_modal.update(cx, |security_modal, cx| {
 6606                    security_modal.dismiss(cx);
 6607                })
 6608            } else {
 6609                security_modal.update(cx, |security_modal, cx| {
 6610                    security_modal.refresh_restricted_paths(cx);
 6611                });
 6612            }
 6613        } else {
 6614            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6615                .map(|trusted_worktrees| {
 6616                    trusted_worktrees
 6617                        .read(cx)
 6618                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6619                })
 6620                .unwrap_or(false);
 6621            if has_restricted_worktrees {
 6622                let project = self.project().read(cx);
 6623                let project_id = project
 6624                    .lsp_store()
 6625                    .read(cx)
 6626                    .downstream_client()
 6627                    .or_else(|| project.lsp_store().read(cx).upstream_client())
 6628                    .map(|(_, project_id)| project_id);
 6629                let remote_host = project_id
 6630                    .zip(project.remote_connection_options(cx))
 6631                    .map(RemoteHostLocation::from);
 6632                let worktree_store = project.worktree_store().downgrade();
 6633                self.toggle_modal(window, cx, |_, cx| {
 6634                    SecurityModal::new(worktree_store, remote_host, cx)
 6635                });
 6636            }
 6637        }
 6638    }
 6639
 6640    fn update_worktree_data(&mut self, window: &mut Window, cx: &mut Context<'_, Self>) {
 6641        self.update_window_title(window, cx);
 6642        self.serialize_workspace(window, cx);
 6643        // This event could be triggered by `AddFolderToProject` or `RemoveFromProject`.
 6644        self.update_history(cx);
 6645    }
 6646}
 6647
 6648fn leader_border_for_pane(
 6649    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6650    pane: &Entity<Pane>,
 6651    _: &Window,
 6652    cx: &App,
 6653) -> Option<Div> {
 6654    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6655        if state.pane() == pane {
 6656            Some((*leader_id, state))
 6657        } else {
 6658            None
 6659        }
 6660    })?;
 6661
 6662    let mut leader_color = match leader_id {
 6663        CollaboratorId::PeerId(leader_peer_id) => {
 6664            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6665            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6666
 6667            cx.theme()
 6668                .players()
 6669                .color_for_participant(leader.participant_index.0)
 6670                .cursor
 6671        }
 6672        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 6673    };
 6674    leader_color.fade_out(0.3);
 6675    Some(
 6676        div()
 6677            .absolute()
 6678            .size_full()
 6679            .left_0()
 6680            .top_0()
 6681            .border_2()
 6682            .border_color(leader_color),
 6683    )
 6684}
 6685
 6686fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 6687    ZED_WINDOW_POSITION
 6688        .zip(*ZED_WINDOW_SIZE)
 6689        .map(|(position, size)| Bounds {
 6690            origin: position,
 6691            size,
 6692        })
 6693}
 6694
 6695fn open_items(
 6696    serialized_workspace: Option<SerializedWorkspace>,
 6697    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 6698    window: &mut Window,
 6699    cx: &mut Context<Workspace>,
 6700) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 6701    let restored_items = serialized_workspace.map(|serialized_workspace| {
 6702        Workspace::load_workspace(
 6703            serialized_workspace,
 6704            project_paths_to_open
 6705                .iter()
 6706                .map(|(_, project_path)| project_path)
 6707                .cloned()
 6708                .collect(),
 6709            window,
 6710            cx,
 6711        )
 6712    });
 6713
 6714    cx.spawn_in(window, async move |workspace, cx| {
 6715        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 6716
 6717        if let Some(restored_items) = restored_items {
 6718            let restored_items = restored_items.await?;
 6719
 6720            let restored_project_paths = restored_items
 6721                .iter()
 6722                .filter_map(|item| {
 6723                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 6724                        .ok()
 6725                        .flatten()
 6726                })
 6727                .collect::<HashSet<_>>();
 6728
 6729            for restored_item in restored_items {
 6730                opened_items.push(restored_item.map(Ok));
 6731            }
 6732
 6733            project_paths_to_open
 6734                .iter_mut()
 6735                .for_each(|(_, project_path)| {
 6736                    if let Some(project_path_to_open) = project_path
 6737                        && restored_project_paths.contains(project_path_to_open)
 6738                    {
 6739                        *project_path = None;
 6740                    }
 6741                });
 6742        } else {
 6743            for _ in 0..project_paths_to_open.len() {
 6744                opened_items.push(None);
 6745            }
 6746        }
 6747        assert!(opened_items.len() == project_paths_to_open.len());
 6748
 6749        let tasks =
 6750            project_paths_to_open
 6751                .into_iter()
 6752                .enumerate()
 6753                .map(|(ix, (abs_path, project_path))| {
 6754                    let workspace = workspace.clone();
 6755                    cx.spawn(async move |cx| {
 6756                        let file_project_path = project_path?;
 6757                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 6758                            workspace.project().update(cx, |project, cx| {
 6759                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 6760                            })
 6761                        });
 6762
 6763                        // We only want to open file paths here. If one of the items
 6764                        // here is a directory, it was already opened further above
 6765                        // with a `find_or_create_worktree`.
 6766                        if let Ok(task) = abs_path_task
 6767                            && task.await.is_none_or(|p| p.is_file())
 6768                        {
 6769                            return Some((
 6770                                ix,
 6771                                workspace
 6772                                    .update_in(cx, |workspace, window, cx| {
 6773                                        workspace.open_path(
 6774                                            file_project_path,
 6775                                            None,
 6776                                            true,
 6777                                            window,
 6778                                            cx,
 6779                                        )
 6780                                    })
 6781                                    .log_err()?
 6782                                    .await,
 6783                            ));
 6784                        }
 6785                        None
 6786                    })
 6787                });
 6788
 6789        let tasks = tasks.collect::<Vec<_>>();
 6790
 6791        let tasks = futures::future::join_all(tasks);
 6792        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 6793            opened_items[ix] = Some(path_open_result);
 6794        }
 6795
 6796        Ok(opened_items)
 6797    })
 6798}
 6799
 6800enum ActivateInDirectionTarget {
 6801    Pane(Entity<Pane>),
 6802    Dock(Entity<Dock>),
 6803}
 6804
 6805fn notify_if_database_failed(workspace: WindowHandle<Workspace>, cx: &mut AsyncApp) {
 6806    workspace
 6807        .update(cx, |workspace, _, cx| {
 6808            if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 6809                struct DatabaseFailedNotification;
 6810
 6811                workspace.show_notification(
 6812                    NotificationId::unique::<DatabaseFailedNotification>(),
 6813                    cx,
 6814                    |cx| {
 6815                        cx.new(|cx| {
 6816                            MessageNotification::new("Failed to load the database file.", cx)
 6817                                .primary_message("File an Issue")
 6818                                .primary_icon(IconName::Plus)
 6819                                .primary_on_click(|window, cx| {
 6820                                    window.dispatch_action(Box::new(FileBugReport), cx)
 6821                                })
 6822                        })
 6823                    },
 6824                );
 6825            }
 6826        })
 6827        .log_err();
 6828}
 6829
 6830fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 6831    if val == 0 {
 6832        ThemeSettings::get_global(cx).ui_font_size(cx)
 6833    } else {
 6834        px(val as f32)
 6835    }
 6836}
 6837
 6838fn adjust_active_dock_size_by_px(
 6839    px: Pixels,
 6840    workspace: &mut Workspace,
 6841    window: &mut Window,
 6842    cx: &mut Context<Workspace>,
 6843) {
 6844    let Some(active_dock) = workspace
 6845        .all_docks()
 6846        .into_iter()
 6847        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 6848    else {
 6849        return;
 6850    };
 6851    let dock = active_dock.read(cx);
 6852    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 6853        return;
 6854    };
 6855    let dock_pos = dock.position();
 6856    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 6857}
 6858
 6859fn adjust_open_docks_size_by_px(
 6860    px: Pixels,
 6861    workspace: &mut Workspace,
 6862    window: &mut Window,
 6863    cx: &mut Context<Workspace>,
 6864) {
 6865    let docks = workspace
 6866        .all_docks()
 6867        .into_iter()
 6868        .filter_map(|dock| {
 6869            if dock.read(cx).is_open() {
 6870                let dock = dock.read(cx);
 6871                let panel_size = dock.active_panel_size(window, cx)?;
 6872                let dock_pos = dock.position();
 6873                Some((panel_size, dock_pos, px))
 6874            } else {
 6875                None
 6876            }
 6877        })
 6878        .collect::<Vec<_>>();
 6879
 6880    docks
 6881        .into_iter()
 6882        .for_each(|(panel_size, dock_pos, offset)| {
 6883            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 6884        });
 6885}
 6886
 6887impl Focusable for Workspace {
 6888    fn focus_handle(&self, cx: &App) -> FocusHandle {
 6889        self.active_pane.focus_handle(cx)
 6890    }
 6891}
 6892
 6893#[derive(Clone)]
 6894struct DraggedDock(DockPosition);
 6895
 6896impl Render for DraggedDock {
 6897    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 6898        gpui::Empty
 6899    }
 6900}
 6901
 6902impl Render for Workspace {
 6903    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 6904        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 6905        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 6906            log::info!("Rendered first frame");
 6907        }
 6908        let mut context = KeyContext::new_with_defaults();
 6909        context.add("Workspace");
 6910        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6911        if let Some(status) = self
 6912            .debugger_provider
 6913            .as_ref()
 6914            .and_then(|provider| provider.active_thread_state(cx))
 6915        {
 6916            match status {
 6917                ThreadStatus::Running | ThreadStatus::Stepping => {
 6918                    context.add("debugger_running");
 6919                }
 6920                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6921                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6922            }
 6923        }
 6924
 6925        if self.left_dock.read(cx).is_open() {
 6926            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6927                context.set("left_dock", active_panel.panel_key());
 6928            }
 6929        }
 6930
 6931        if self.right_dock.read(cx).is_open() {
 6932            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6933                context.set("right_dock", active_panel.panel_key());
 6934            }
 6935        }
 6936
 6937        if self.bottom_dock.read(cx).is_open() {
 6938            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6939                context.set("bottom_dock", active_panel.panel_key());
 6940            }
 6941        }
 6942
 6943        let centered_layout = self.centered_layout
 6944            && self.center.panes().len() == 1
 6945            && self.active_item(cx).is_some();
 6946        let render_padding = |size| {
 6947            (size > 0.0).then(|| {
 6948                div()
 6949                    .h_full()
 6950                    .w(relative(size))
 6951                    .bg(cx.theme().colors().editor_background)
 6952                    .border_color(cx.theme().colors().pane_group_border)
 6953            })
 6954        };
 6955        let paddings = if centered_layout {
 6956            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 6957            (
 6958                render_padding(Self::adjust_padding(
 6959                    settings.left_padding.map(|padding| padding.0),
 6960                )),
 6961                render_padding(Self::adjust_padding(
 6962                    settings.right_padding.map(|padding| padding.0),
 6963                )),
 6964            )
 6965        } else {
 6966            (None, None)
 6967        };
 6968        let ui_font = theme::setup_ui_font(window, cx);
 6969
 6970        let theme = cx.theme().clone();
 6971        let colors = theme.colors();
 6972        let notification_entities = self
 6973            .notifications
 6974            .iter()
 6975            .map(|(_, notification)| notification.entity_id())
 6976            .collect::<Vec<_>>();
 6977        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 6978
 6979        client_side_decorations(
 6980            self.actions(div(), window, cx)
 6981                .key_context(context)
 6982                .relative()
 6983                .size_full()
 6984                .flex()
 6985                .flex_col()
 6986                .font(ui_font)
 6987                .gap_0()
 6988                .justify_start()
 6989                .items_start()
 6990                .text_color(colors.text)
 6991                .overflow_hidden()
 6992                .children(self.titlebar_item.clone())
 6993                .on_modifiers_changed(move |_, _, cx| {
 6994                    for &id in &notification_entities {
 6995                        cx.notify(id);
 6996                    }
 6997                })
 6998                .child(
 6999                    div()
 7000                        .size_full()
 7001                        .relative()
 7002                        .flex_1()
 7003                        .flex()
 7004                        .flex_col()
 7005                        .child(
 7006                            div()
 7007                                .id("workspace")
 7008                                .bg(colors.background)
 7009                                .relative()
 7010                                .flex_1()
 7011                                .w_full()
 7012                                .flex()
 7013                                .flex_col()
 7014                                .overflow_hidden()
 7015                                .border_t_1()
 7016                                .border_b_1()
 7017                                .border_color(colors.border)
 7018                                .child({
 7019                                    let this = cx.entity();
 7020                                    canvas(
 7021                                        move |bounds, window, cx| {
 7022                                            this.update(cx, |this, cx| {
 7023                                                let bounds_changed = this.bounds != bounds;
 7024                                                this.bounds = bounds;
 7025
 7026                                                if bounds_changed {
 7027                                                    this.left_dock.update(cx, |dock, cx| {
 7028                                                        dock.clamp_panel_size(
 7029                                                            bounds.size.width,
 7030                                                            window,
 7031                                                            cx,
 7032                                                        )
 7033                                                    });
 7034
 7035                                                    this.right_dock.update(cx, |dock, cx| {
 7036                                                        dock.clamp_panel_size(
 7037                                                            bounds.size.width,
 7038                                                            window,
 7039                                                            cx,
 7040                                                        )
 7041                                                    });
 7042
 7043                                                    this.bottom_dock.update(cx, |dock, cx| {
 7044                                                        dock.clamp_panel_size(
 7045                                                            bounds.size.height,
 7046                                                            window,
 7047                                                            cx,
 7048                                                        )
 7049                                                    });
 7050                                                }
 7051                                            })
 7052                                        },
 7053                                        |_, _, _, _| {},
 7054                                    )
 7055                                    .absolute()
 7056                                    .size_full()
 7057                                })
 7058                                .when(self.zoomed.is_none(), |this| {
 7059                                    this.on_drag_move(cx.listener(
 7060                                        move |workspace,
 7061                                              e: &DragMoveEvent<DraggedDock>,
 7062                                              window,
 7063                                              cx| {
 7064                                            if workspace.previous_dock_drag_coordinates
 7065                                                != Some(e.event.position)
 7066                                            {
 7067                                                workspace.previous_dock_drag_coordinates =
 7068                                                    Some(e.event.position);
 7069                                                match e.drag(cx).0 {
 7070                                                    DockPosition::Left => {
 7071                                                        workspace.resize_left_dock(
 7072                                                            e.event.position.x
 7073                                                                - workspace.bounds.left(),
 7074                                                            window,
 7075                                                            cx,
 7076                                                        );
 7077                                                    }
 7078                                                    DockPosition::Right => {
 7079                                                        workspace.resize_right_dock(
 7080                                                            workspace.bounds.right()
 7081                                                                - e.event.position.x,
 7082                                                            window,
 7083                                                            cx,
 7084                                                        );
 7085                                                    }
 7086                                                    DockPosition::Bottom => {
 7087                                                        workspace.resize_bottom_dock(
 7088                                                            workspace.bounds.bottom()
 7089                                                                - e.event.position.y,
 7090                                                            window,
 7091                                                            cx,
 7092                                                        );
 7093                                                    }
 7094                                                };
 7095                                                workspace.serialize_workspace(window, cx);
 7096                                            }
 7097                                        },
 7098                                    ))
 7099                                    .on_drag_move(cx.listener(
 7100                                        move |workspace,
 7101                                              e: &DragMoveEvent<DraggedUtilityPane>,
 7102                                              window,
 7103                                              cx| {
 7104                                            let slot = e.drag(cx).0;
 7105                                            match slot {
 7106                                                UtilityPaneSlot::Left => {
 7107                                                    let left_dock_width = workspace.left_dock.read(cx)
 7108                                                        .active_panel_size(window, cx)
 7109                                                        .unwrap_or(gpui::px(0.0));
 7110                                                    let new_width = e.event.position.x
 7111                                                        - workspace.bounds.left()
 7112                                                        - left_dock_width;
 7113                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7114                                                }
 7115                                                UtilityPaneSlot::Right => {
 7116                                                    let right_dock_width = workspace.right_dock.read(cx)
 7117                                                        .active_panel_size(window, cx)
 7118                                                        .unwrap_or(gpui::px(0.0));
 7119                                                    let new_width = workspace.bounds.right()
 7120                                                        - e.event.position.x
 7121                                                        - right_dock_width;
 7122                                                    workspace.resize_utility_pane(slot, new_width, window, cx);
 7123                                                }
 7124                                            }
 7125                                        },
 7126                                    ))
 7127                                })
 7128                                .child({
 7129                                    match bottom_dock_layout {
 7130                                        BottomDockLayout::Full => div()
 7131                                            .flex()
 7132                                            .flex_col()
 7133                                            .h_full()
 7134                                            .child(
 7135                                                div()
 7136                                                    .flex()
 7137                                                    .flex_row()
 7138                                                    .flex_1()
 7139                                                    .overflow_hidden()
 7140                                                    .children(self.render_dock(
 7141                                                        DockPosition::Left,
 7142                                                        &self.left_dock,
 7143                                                        window,
 7144                                                        cx,
 7145                                                    ))
 7146                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7147                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7148                                                            this.when(pane.expanded(cx), |this| {
 7149                                                                this.child(
 7150                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7151                                                                )
 7152                                                            })
 7153                                                        })
 7154                                                    })
 7155                                                    .child(
 7156                                                        div()
 7157                                                            .flex()
 7158                                                            .flex_col()
 7159                                                            .flex_1()
 7160                                                            .overflow_hidden()
 7161                                                            .child(
 7162                                                                h_flex()
 7163                                                                    .flex_1()
 7164                                                                    .when_some(
 7165                                                                        paddings.0,
 7166                                                                        |this, p| {
 7167                                                                            this.child(
 7168                                                                                p.border_r_1(),
 7169                                                                            )
 7170                                                                        },
 7171                                                                    )
 7172                                                                    .child(self.center.render(
 7173                                                                        self.zoomed.as_ref(),
 7174                                                                        &PaneRenderContext {
 7175                                                                            follower_states:
 7176                                                                                &self.follower_states,
 7177                                                                            active_call: self.active_call(),
 7178                                                                            active_pane: &self.active_pane,
 7179                                                                            app_state: &self.app_state,
 7180                                                                            project: &self.project,
 7181                                                                            workspace: &self.weak_self,
 7182                                                                        },
 7183                                                                        window,
 7184                                                                        cx,
 7185                                                                    ))
 7186                                                                    .when_some(
 7187                                                                        paddings.1,
 7188                                                                        |this, p| {
 7189                                                                            this.child(
 7190                                                                                p.border_l_1(),
 7191                                                                            )
 7192                                                                        },
 7193                                                                    ),
 7194                                                            ),
 7195                                                    )
 7196                                                    .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7197                                                        this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7198                                                            this.when(pane.expanded(cx), |this| {
 7199                                                                this.child(
 7200                                                                    UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7201                                                                )
 7202                                                            })
 7203                                                        })
 7204                                                    })
 7205                                                    .children(self.render_dock(
 7206                                                        DockPosition::Right,
 7207                                                        &self.right_dock,
 7208                                                        window,
 7209                                                        cx,
 7210                                                    )),
 7211                                            )
 7212                                            .child(div().w_full().children(self.render_dock(
 7213                                                DockPosition::Bottom,
 7214                                                &self.bottom_dock,
 7215                                                window,
 7216                                                cx
 7217                                            ))),
 7218
 7219                                        BottomDockLayout::LeftAligned => div()
 7220                                            .flex()
 7221                                            .flex_row()
 7222                                            .h_full()
 7223                                            .child(
 7224                                                div()
 7225                                                    .flex()
 7226                                                    .flex_col()
 7227                                                    .flex_1()
 7228                                                    .h_full()
 7229                                                    .child(
 7230                                                        div()
 7231                                                            .flex()
 7232                                                            .flex_row()
 7233                                                            .flex_1()
 7234                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7235                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7236                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7237                                                                    this.when(pane.expanded(cx), |this| {
 7238                                                                        this.child(
 7239                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7240                                                                        )
 7241                                                                    })
 7242                                                                })
 7243                                                            })
 7244                                                            .child(
 7245                                                                div()
 7246                                                                    .flex()
 7247                                                                    .flex_col()
 7248                                                                    .flex_1()
 7249                                                                    .overflow_hidden()
 7250                                                                    .child(
 7251                                                                        h_flex()
 7252                                                                            .flex_1()
 7253                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7254                                                                            .child(self.center.render(
 7255                                                                                self.zoomed.as_ref(),
 7256                                                                                &PaneRenderContext {
 7257                                                                                    follower_states:
 7258                                                                                        &self.follower_states,
 7259                                                                                    active_call: self.active_call(),
 7260                                                                                    active_pane: &self.active_pane,
 7261                                                                                    app_state: &self.app_state,
 7262                                                                                    project: &self.project,
 7263                                                                                    workspace: &self.weak_self,
 7264                                                                                },
 7265                                                                                window,
 7266                                                                                cx,
 7267                                                                            ))
 7268                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7269                                                                    )
 7270                                                            )
 7271                                                            .when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7272                                                                this.when(pane.expanded(cx), |this| {
 7273                                                                    this.child(
 7274                                                                        UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7275                                                                    )
 7276                                                                })
 7277                                                            })
 7278                                                    )
 7279                                                    .child(
 7280                                                        div()
 7281                                                            .w_full()
 7282                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7283                                                    ),
 7284                                            )
 7285                                            .children(self.render_dock(
 7286                                                DockPosition::Right,
 7287                                                &self.right_dock,
 7288                                                window,
 7289                                                cx,
 7290                                            )),
 7291
 7292                                        BottomDockLayout::RightAligned => div()
 7293                                            .flex()
 7294                                            .flex_row()
 7295                                            .h_full()
 7296                                            .children(self.render_dock(
 7297                                                DockPosition::Left,
 7298                                                &self.left_dock,
 7299                                                window,
 7300                                                cx,
 7301                                            ))
 7302                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7303                                                this.when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7304                                                    this.when(pane.expanded(cx), |this| {
 7305                                                        this.child(
 7306                                                            UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7307                                                        )
 7308                                                    })
 7309                                                })
 7310                                            })
 7311                                            .child(
 7312                                                div()
 7313                                                    .flex()
 7314                                                    .flex_col()
 7315                                                    .flex_1()
 7316                                                    .h_full()
 7317                                                    .child(
 7318                                                        div()
 7319                                                            .flex()
 7320                                                            .flex_row()
 7321                                                            .flex_1()
 7322                                                            .child(
 7323                                                                div()
 7324                                                                    .flex()
 7325                                                                    .flex_col()
 7326                                                                    .flex_1()
 7327                                                                    .overflow_hidden()
 7328                                                                    .child(
 7329                                                                        h_flex()
 7330                                                                            .flex_1()
 7331                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7332                                                                            .child(self.center.render(
 7333                                                                                self.zoomed.as_ref(),
 7334                                                                                &PaneRenderContext {
 7335                                                                                    follower_states:
 7336                                                                                        &self.follower_states,
 7337                                                                                    active_call: self.active_call(),
 7338                                                                                    active_pane: &self.active_pane,
 7339                                                                                    app_state: &self.app_state,
 7340                                                                                    project: &self.project,
 7341                                                                                    workspace: &self.weak_self,
 7342                                                                                },
 7343                                                                                window,
 7344                                                                                cx,
 7345                                                                            ))
 7346                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7347                                                                    )
 7348                                                            )
 7349                                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7350                                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7351                                                                    this.when(pane.expanded(cx), |this| {
 7352                                                                        this.child(
 7353                                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7354                                                                        )
 7355                                                                    })
 7356                                                                })
 7357                                                            })
 7358                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7359                                                    )
 7360                                                    .child(
 7361                                                        div()
 7362                                                            .w_full()
 7363                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7364                                                    ),
 7365                                            ),
 7366
 7367                                        BottomDockLayout::Contained => div()
 7368                                            .flex()
 7369                                            .flex_row()
 7370                                            .h_full()
 7371                                            .children(self.render_dock(
 7372                                                DockPosition::Left,
 7373                                                &self.left_dock,
 7374                                                window,
 7375                                                cx,
 7376                                            ))
 7377                                            .when_some(self.utility_pane(UtilityPaneSlot::Left), |this, pane| {
 7378                                                this.when(pane.expanded(cx), |this| {
 7379                                                    this.child(
 7380                                                        UtilityPaneFrame::new(UtilityPaneSlot::Left, pane.box_clone(), cx)
 7381                                                    )
 7382                                                })
 7383                                            })
 7384                                            .child(
 7385                                                div()
 7386                                                    .flex()
 7387                                                    .flex_col()
 7388                                                    .flex_1()
 7389                                                    .overflow_hidden()
 7390                                                    .child(
 7391                                                        h_flex()
 7392                                                            .flex_1()
 7393                                                            .when_some(paddings.0, |this, p| {
 7394                                                                this.child(p.border_r_1())
 7395                                                            })
 7396                                                            .child(self.center.render(
 7397                                                                self.zoomed.as_ref(),
 7398                                                                &PaneRenderContext {
 7399                                                                    follower_states:
 7400                                                                        &self.follower_states,
 7401                                                                    active_call: self.active_call(),
 7402                                                                    active_pane: &self.active_pane,
 7403                                                                    app_state: &self.app_state,
 7404                                                                    project: &self.project,
 7405                                                                    workspace: &self.weak_self,
 7406                                                                },
 7407                                                                window,
 7408                                                                cx,
 7409                                                            ))
 7410                                                            .when_some(paddings.1, |this, p| {
 7411                                                                this.child(p.border_l_1())
 7412                                                            }),
 7413                                                    )
 7414                                                    .children(self.render_dock(
 7415                                                        DockPosition::Bottom,
 7416                                                        &self.bottom_dock,
 7417                                                        window,
 7418                                                        cx,
 7419                                                    )),
 7420                                            )
 7421                                            .when(cx.has_flag::<AgentV2FeatureFlag>(), |this| {
 7422                                                this.when_some(self.utility_pane(UtilityPaneSlot::Right), |this, pane| {
 7423                                                    this.when(pane.expanded(cx), |this| {
 7424                                                        this.child(
 7425                                                            UtilityPaneFrame::new(UtilityPaneSlot::Right, pane.box_clone(), cx)
 7426                                                        )
 7427                                                    })
 7428                                                })
 7429                                            })
 7430                                            .children(self.render_dock(
 7431                                                DockPosition::Right,
 7432                                                &self.right_dock,
 7433                                                window,
 7434                                                cx,
 7435                                            )),
 7436                                    }
 7437                                })
 7438                                .children(self.zoomed.as_ref().and_then(|view| {
 7439                                    let zoomed_view = view.upgrade()?;
 7440                                    let div = div()
 7441                                        .occlude()
 7442                                        .absolute()
 7443                                        .overflow_hidden()
 7444                                        .border_color(colors.border)
 7445                                        .bg(colors.background)
 7446                                        .child(zoomed_view)
 7447                                        .inset_0()
 7448                                        .shadow_lg();
 7449
 7450                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7451                                       return Some(div);
 7452                                    }
 7453
 7454                                    Some(match self.zoomed_position {
 7455                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7456                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7457                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7458                                        None => {
 7459                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7460                                        }
 7461                                    })
 7462                                }))
 7463                                .children(self.render_notifications(window, cx)),
 7464                        )
 7465                        .when(self.status_bar_visible(cx), |parent| {
 7466                            parent.child(self.status_bar.clone())
 7467                        })
 7468                        .child(self.modal_layer.clone())
 7469                        .child(self.toast_layer.clone()),
 7470                ),
 7471            window,
 7472            cx,
 7473        )
 7474    }
 7475}
 7476
 7477impl WorkspaceStore {
 7478    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7479        Self {
 7480            workspaces: Default::default(),
 7481            _subscriptions: vec![
 7482                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7483                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7484            ],
 7485            client,
 7486        }
 7487    }
 7488
 7489    pub fn update_followers(
 7490        &self,
 7491        project_id: Option<u64>,
 7492        update: proto::update_followers::Variant,
 7493        cx: &App,
 7494    ) -> Option<()> {
 7495        let active_call = ActiveCall::try_global(cx)?;
 7496        let room_id = active_call.read(cx).room()?.read(cx).id();
 7497        self.client
 7498            .send(proto::UpdateFollowers {
 7499                room_id,
 7500                project_id,
 7501                variant: Some(update),
 7502            })
 7503            .log_err()
 7504    }
 7505
 7506    pub async fn handle_follow(
 7507        this: Entity<Self>,
 7508        envelope: TypedEnvelope<proto::Follow>,
 7509        mut cx: AsyncApp,
 7510    ) -> Result<proto::FollowResponse> {
 7511        this.update(&mut cx, |this, cx| {
 7512            let follower = Follower {
 7513                project_id: envelope.payload.project_id,
 7514                peer_id: envelope.original_sender_id()?,
 7515            };
 7516
 7517            let mut response = proto::FollowResponse::default();
 7518            this.workspaces.retain(|workspace| {
 7519                workspace
 7520                    .update(cx, |workspace, window, cx| {
 7521                        let handler_response =
 7522                            workspace.handle_follow(follower.project_id, window, cx);
 7523                        if let Some(active_view) = handler_response.active_view
 7524                            && workspace.project.read(cx).remote_id() == follower.project_id
 7525                        {
 7526                            response.active_view = Some(active_view)
 7527                        }
 7528                    })
 7529                    .is_ok()
 7530            });
 7531
 7532            Ok(response)
 7533        })?
 7534    }
 7535
 7536    async fn handle_update_followers(
 7537        this: Entity<Self>,
 7538        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7539        mut cx: AsyncApp,
 7540    ) -> Result<()> {
 7541        let leader_id = envelope.original_sender_id()?;
 7542        let update = envelope.payload;
 7543
 7544        this.update(&mut cx, |this, cx| {
 7545            this.workspaces.retain(|workspace| {
 7546                workspace
 7547                    .update(cx, |workspace, window, cx| {
 7548                        let project_id = workspace.project.read(cx).remote_id();
 7549                        if update.project_id != project_id && update.project_id.is_some() {
 7550                            return;
 7551                        }
 7552                        workspace.handle_update_followers(leader_id, update.clone(), window, cx);
 7553                    })
 7554                    .is_ok()
 7555            });
 7556            Ok(())
 7557        })?
 7558    }
 7559
 7560    pub fn workspaces(&self) -> &HashSet<WindowHandle<Workspace>> {
 7561        &self.workspaces
 7562    }
 7563}
 7564
 7565impl ViewId {
 7566    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7567        Ok(Self {
 7568            creator: message
 7569                .creator
 7570                .map(CollaboratorId::PeerId)
 7571                .context("creator is missing")?,
 7572            id: message.id,
 7573        })
 7574    }
 7575
 7576    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7577        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7578            Some(proto::ViewId {
 7579                creator: Some(peer_id),
 7580                id: self.id,
 7581            })
 7582        } else {
 7583            None
 7584        }
 7585    }
 7586}
 7587
 7588impl FollowerState {
 7589    fn pane(&self) -> &Entity<Pane> {
 7590        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7591    }
 7592}
 7593
 7594pub trait WorkspaceHandle {
 7595    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7596}
 7597
 7598impl WorkspaceHandle for Entity<Workspace> {
 7599    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7600        self.read(cx)
 7601            .worktrees(cx)
 7602            .flat_map(|worktree| {
 7603                let worktree_id = worktree.read(cx).id();
 7604                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7605                    worktree_id,
 7606                    path: f.path.clone(),
 7607                })
 7608            })
 7609            .collect::<Vec<_>>()
 7610    }
 7611}
 7612
 7613pub async fn last_opened_workspace_location() -> Option<(SerializedWorkspaceLocation, PathList)> {
 7614    DB.last_workspace().await.log_err().flatten()
 7615}
 7616
 7617pub fn last_session_workspace_locations(
 7618    last_session_id: &str,
 7619    last_session_window_stack: Option<Vec<WindowId>>,
 7620) -> Option<Vec<(SerializedWorkspaceLocation, PathList)>> {
 7621    DB.last_session_workspace_locations(last_session_id, last_session_window_stack)
 7622        .log_err()
 7623}
 7624
 7625actions!(
 7626    collab,
 7627    [
 7628        /// Opens the channel notes for the current call.
 7629        ///
 7630        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7631        /// channel in the collab panel.
 7632        ///
 7633        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7634        /// can be copied via "Copy link to section" in the context menu of the channel notes
 7635        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 7636        OpenChannelNotes,
 7637        /// Mutes your microphone.
 7638        Mute,
 7639        /// Deafens yourself (mute both microphone and speakers).
 7640        Deafen,
 7641        /// Leaves the current call.
 7642        LeaveCall,
 7643        /// Shares the current project with collaborators.
 7644        ShareProject,
 7645        /// Shares your screen with collaborators.
 7646        ScreenShare,
 7647        /// Copies the current room name and session id for debugging purposes.
 7648        CopyRoomId,
 7649    ]
 7650);
 7651actions!(
 7652    zed,
 7653    [
 7654        /// Opens the Zed log file.
 7655        OpenLog,
 7656        /// Reveals the Zed log file in the system file manager.
 7657        RevealLogInFileManager
 7658    ]
 7659);
 7660
 7661async fn join_channel_internal(
 7662    channel_id: ChannelId,
 7663    app_state: &Arc<AppState>,
 7664    requesting_window: Option<WindowHandle<Workspace>>,
 7665    active_call: &Entity<ActiveCall>,
 7666    cx: &mut AsyncApp,
 7667) -> Result<bool> {
 7668    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 7669        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 7670            return (false, None);
 7671        };
 7672
 7673        let already_in_channel = room.channel_id() == Some(channel_id);
 7674        let should_prompt = room.is_sharing_project()
 7675            && !room.remote_participants().is_empty()
 7676            && !already_in_channel;
 7677        let open_room = if already_in_channel {
 7678            active_call.room().cloned()
 7679        } else {
 7680            None
 7681        };
 7682        (should_prompt, open_room)
 7683    })?;
 7684
 7685    if let Some(room) = open_room {
 7686        let task = room.update(cx, |room, cx| {
 7687            if let Some((project, host)) = room.most_active_project(cx) {
 7688                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7689            }
 7690
 7691            None
 7692        })?;
 7693        if let Some(task) = task {
 7694            task.await?;
 7695        }
 7696        return anyhow::Ok(true);
 7697    }
 7698
 7699    if should_prompt {
 7700        if let Some(workspace) = requesting_window {
 7701            let answer = workspace
 7702                .update(cx, |_, window, cx| {
 7703                    window.prompt(
 7704                        PromptLevel::Warning,
 7705                        "Do you want to switch channels?",
 7706                        Some("Leaving this call will unshare your current project."),
 7707                        &["Yes, Join Channel", "Cancel"],
 7708                        cx,
 7709                    )
 7710                })?
 7711                .await;
 7712
 7713            if answer == Ok(1) {
 7714                return Ok(false);
 7715            }
 7716        } else {
 7717            return Ok(false); // unreachable!() hopefully
 7718        }
 7719    }
 7720
 7721    let client = cx.update(|cx| active_call.read(cx).client())?;
 7722
 7723    let mut client_status = client.status();
 7724
 7725    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 7726    'outer: loop {
 7727        let Some(status) = client_status.recv().await else {
 7728            anyhow::bail!("error connecting");
 7729        };
 7730
 7731        match status {
 7732            Status::Connecting
 7733            | Status::Authenticating
 7734            | Status::Authenticated
 7735            | Status::Reconnecting
 7736            | Status::Reauthenticating
 7737            | Status::Reauthenticated => continue,
 7738            Status::Connected { .. } => break 'outer,
 7739            Status::SignedOut | Status::AuthenticationError => {
 7740                return Err(ErrorCode::SignedOut.into());
 7741            }
 7742            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 7743            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 7744                return Err(ErrorCode::Disconnected.into());
 7745            }
 7746        }
 7747    }
 7748
 7749    let room = active_call
 7750        .update(cx, |active_call, cx| {
 7751            active_call.join_channel(channel_id, cx)
 7752        })?
 7753        .await?;
 7754
 7755    let Some(room) = room else {
 7756        return anyhow::Ok(true);
 7757    };
 7758
 7759    room.update(cx, |room, _| room.room_update_completed())?
 7760        .await;
 7761
 7762    let task = room.update(cx, |room, cx| {
 7763        if let Some((project, host)) = room.most_active_project(cx) {
 7764            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 7765        }
 7766
 7767        // If you are the first to join a channel, see if you should share your project.
 7768        if room.remote_participants().is_empty()
 7769            && !room.local_participant_is_guest()
 7770            && let Some(workspace) = requesting_window
 7771        {
 7772            let project = workspace.update(cx, |workspace, _, cx| {
 7773                let project = workspace.project.read(cx);
 7774
 7775                if !CallSettings::get_global(cx).share_on_join {
 7776                    return None;
 7777                }
 7778
 7779                if (project.is_local() || project.is_via_remote_server())
 7780                    && project.visible_worktrees(cx).any(|tree| {
 7781                        tree.read(cx)
 7782                            .root_entry()
 7783                            .is_some_and(|entry| entry.is_dir())
 7784                    })
 7785                {
 7786                    Some(workspace.project.clone())
 7787                } else {
 7788                    None
 7789                }
 7790            });
 7791            if let Ok(Some(project)) = project {
 7792                return Some(cx.spawn(async move |room, cx| {
 7793                    room.update(cx, |room, cx| room.share_project(project, cx))?
 7794                        .await?;
 7795                    Ok(())
 7796                }));
 7797            }
 7798        }
 7799
 7800        None
 7801    })?;
 7802    if let Some(task) = task {
 7803        task.await?;
 7804        return anyhow::Ok(true);
 7805    }
 7806    anyhow::Ok(false)
 7807}
 7808
 7809pub fn join_channel(
 7810    channel_id: ChannelId,
 7811    app_state: Arc<AppState>,
 7812    requesting_window: Option<WindowHandle<Workspace>>,
 7813    cx: &mut App,
 7814) -> Task<Result<()>> {
 7815    let active_call = ActiveCall::global(cx);
 7816    cx.spawn(async move |cx| {
 7817        let result =
 7818            join_channel_internal(channel_id, &app_state, requesting_window, &active_call, cx)
 7819                .await;
 7820
 7821        // join channel succeeded, and opened a window
 7822        if matches!(result, Ok(true)) {
 7823            return anyhow::Ok(());
 7824        }
 7825
 7826        // find an existing workspace to focus and show call controls
 7827        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 7828        if active_window.is_none() {
 7829            // no open workspaces, make one to show the error in (blergh)
 7830            let (window_handle, _) = cx
 7831                .update(|cx| {
 7832                    Workspace::new_local(
 7833                        vec![],
 7834                        app_state.clone(),
 7835                        requesting_window,
 7836                        None,
 7837                        None,
 7838                        cx,
 7839                    )
 7840                })?
 7841                .await?;
 7842
 7843            if result.is_ok() {
 7844                cx.update(|cx| {
 7845                    cx.dispatch_action(&OpenChannelNotes);
 7846                })
 7847                .log_err();
 7848            }
 7849
 7850            active_window = Some(window_handle);
 7851        }
 7852
 7853        if let Err(err) = result {
 7854            log::error!("failed to join channel: {}", err);
 7855            if let Some(active_window) = active_window {
 7856                active_window
 7857                    .update(cx, |_, window, cx| {
 7858                        let detail: SharedString = match err.error_code() {
 7859                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 7860                            ErrorCode::UpgradeRequired => concat!(
 7861                                "Your are running an unsupported version of Zed. ",
 7862                                "Please update to continue."
 7863                            )
 7864                            .into(),
 7865                            ErrorCode::NoSuchChannel => concat!(
 7866                                "No matching channel was found. ",
 7867                                "Please check the link and try again."
 7868                            )
 7869                            .into(),
 7870                            ErrorCode::Forbidden => concat!(
 7871                                "This channel is private, and you do not have access. ",
 7872                                "Please ask someone to add you and try again."
 7873                            )
 7874                            .into(),
 7875                            ErrorCode::Disconnected => {
 7876                                "Please check your internet connection and try again.".into()
 7877                            }
 7878                            _ => format!("{}\n\nPlease try again.", err).into(),
 7879                        };
 7880                        window.prompt(
 7881                            PromptLevel::Critical,
 7882                            "Failed to join channel",
 7883                            Some(&detail),
 7884                            &["Ok"],
 7885                            cx,
 7886                        )
 7887                    })?
 7888                    .await
 7889                    .ok();
 7890            }
 7891        }
 7892
 7893        // return ok, we showed the error to the user.
 7894        anyhow::Ok(())
 7895    })
 7896}
 7897
 7898pub async fn get_any_active_workspace(
 7899    app_state: Arc<AppState>,
 7900    mut cx: AsyncApp,
 7901) -> anyhow::Result<WindowHandle<Workspace>> {
 7902    // find an existing workspace to focus and show call controls
 7903    let active_window = activate_any_workspace_window(&mut cx);
 7904    if active_window.is_none() {
 7905        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))?
 7906            .await?;
 7907    }
 7908    activate_any_workspace_window(&mut cx).context("could not open zed")
 7909}
 7910
 7911fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<Workspace>> {
 7912    cx.update(|cx| {
 7913        if let Some(workspace_window) = cx
 7914            .active_window()
 7915            .and_then(|window| window.downcast::<Workspace>())
 7916        {
 7917            return Some(workspace_window);
 7918        }
 7919
 7920        for window in cx.windows() {
 7921            if let Some(workspace_window) = window.downcast::<Workspace>() {
 7922                workspace_window
 7923                    .update(cx, |_, window, _| window.activate_window())
 7924                    .ok();
 7925                return Some(workspace_window);
 7926            }
 7927        }
 7928        None
 7929    })
 7930    .ok()
 7931    .flatten()
 7932}
 7933
 7934pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<Workspace>> {
 7935    cx.windows()
 7936        .into_iter()
 7937        .filter_map(|window| window.downcast::<Workspace>())
 7938        .filter(|workspace| {
 7939            workspace
 7940                .read(cx)
 7941                .is_ok_and(|workspace| workspace.project.read(cx).is_local())
 7942        })
 7943        .collect()
 7944}
 7945
 7946#[derive(Default)]
 7947pub struct OpenOptions {
 7948    pub visible: Option<OpenVisible>,
 7949    pub focus: Option<bool>,
 7950    pub open_new_workspace: Option<bool>,
 7951    pub prefer_focused_window: bool,
 7952    pub replace_window: Option<WindowHandle<Workspace>>,
 7953    pub env: Option<HashMap<String, String>>,
 7954}
 7955
 7956#[allow(clippy::type_complexity)]
 7957pub fn open_paths(
 7958    abs_paths: &[PathBuf],
 7959    app_state: Arc<AppState>,
 7960    open_options: OpenOptions,
 7961    cx: &mut App,
 7962) -> Task<
 7963    anyhow::Result<(
 7964        WindowHandle<Workspace>,
 7965        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 7966    )>,
 7967> {
 7968    let abs_paths = abs_paths.to_vec();
 7969    let mut existing = None;
 7970    let mut best_match = None;
 7971    let mut open_visible = OpenVisible::All;
 7972    #[cfg(target_os = "windows")]
 7973    let wsl_path = abs_paths
 7974        .iter()
 7975        .find_map(|p| util::paths::WslPath::from_path(p));
 7976
 7977    cx.spawn(async move |cx| {
 7978        if open_options.open_new_workspace != Some(true) {
 7979            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 7980            let all_metadatas = futures::future::join_all(all_paths)
 7981                .await
 7982                .into_iter()
 7983                .filter_map(|result| result.ok().flatten())
 7984                .collect::<Vec<_>>();
 7985
 7986            cx.update(|cx| {
 7987                for window in local_workspace_windows(cx) {
 7988                    if let Ok(workspace) = window.read(cx) {
 7989                        let m = workspace.project.read(cx).visibility_for_paths(
 7990                            &abs_paths,
 7991                            &all_metadatas,
 7992                            open_options.open_new_workspace == None,
 7993                            cx,
 7994                        );
 7995                        if m > best_match {
 7996                            existing = Some(window);
 7997                            best_match = m;
 7998                        } else if best_match.is_none()
 7999                            && open_options.open_new_workspace == Some(false)
 8000                        {
 8001                            existing = Some(window)
 8002                        }
 8003                    }
 8004                }
 8005            })?;
 8006
 8007            if open_options.open_new_workspace.is_none()
 8008                && (existing.is_none() || open_options.prefer_focused_window)
 8009                && all_metadatas.iter().all(|file| !file.is_dir)
 8010            {
 8011                cx.update(|cx| {
 8012                    if let Some(window) = cx
 8013                        .active_window()
 8014                        .and_then(|window| window.downcast::<Workspace>())
 8015                        && let Ok(workspace) = window.read(cx)
 8016                    {
 8017                        let project = workspace.project().read(cx);
 8018                        if project.is_local() && !project.is_via_collab() {
 8019                            existing = Some(window);
 8020                            open_visible = OpenVisible::None;
 8021                            return;
 8022                        }
 8023                    }
 8024                    for window in local_workspace_windows(cx) {
 8025                        if let Ok(workspace) = window.read(cx) {
 8026                            let project = workspace.project().read(cx);
 8027                            if project.is_via_collab() {
 8028                                continue;
 8029                            }
 8030                            existing = Some(window);
 8031                            open_visible = OpenVisible::None;
 8032                            break;
 8033                        }
 8034                    }
 8035                })?;
 8036            }
 8037        }
 8038
 8039        let result = if let Some(existing) = existing {
 8040            let open_task = existing
 8041                .update(cx, |workspace, window, cx| {
 8042                    window.activate_window();
 8043                    workspace.open_paths(
 8044                        abs_paths,
 8045                        OpenOptions {
 8046                            visible: Some(open_visible),
 8047                            ..Default::default()
 8048                        },
 8049                        None,
 8050                        window,
 8051                        cx,
 8052                    )
 8053                })?
 8054                .await;
 8055
 8056            _ = existing.update(cx, |workspace, _, cx| {
 8057                for item in open_task.iter().flatten() {
 8058                    if let Err(e) = item {
 8059                        workspace.show_error(&e, cx);
 8060                    }
 8061                }
 8062            });
 8063
 8064            Ok((existing, open_task))
 8065        } else {
 8066            cx.update(move |cx| {
 8067                Workspace::new_local(
 8068                    abs_paths,
 8069                    app_state.clone(),
 8070                    open_options.replace_window,
 8071                    open_options.env,
 8072                    None,
 8073                    cx,
 8074                )
 8075            })?
 8076            .await
 8077        };
 8078
 8079        #[cfg(target_os = "windows")]
 8080        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8081            && let Ok((workspace, _)) = &result
 8082        {
 8083            workspace
 8084                .update(cx, move |workspace, _window, cx| {
 8085                    struct OpenInWsl;
 8086                    workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8087                        let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8088                        let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8089                        cx.new(move |cx| {
 8090                            MessageNotification::new(msg, cx)
 8091                                .primary_message("Open in WSL")
 8092                                .primary_icon(IconName::FolderOpen)
 8093                                .primary_on_click(move |window, cx| {
 8094                                    window.dispatch_action(Box::new(remote::OpenWslPath {
 8095                                            distro: remote::WslConnectionOptions {
 8096                                                    distro_name: distro.clone(),
 8097                                                user: None,
 8098                                            },
 8099                                            paths: vec![path.clone().into()],
 8100                                        }), cx)
 8101                                })
 8102                        })
 8103                    });
 8104                })
 8105                .unwrap();
 8106        };
 8107        result
 8108    })
 8109}
 8110
 8111pub fn open_new(
 8112    open_options: OpenOptions,
 8113    app_state: Arc<AppState>,
 8114    cx: &mut App,
 8115    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8116) -> Task<anyhow::Result<()>> {
 8117    let task = Workspace::new_local(
 8118        Vec::new(),
 8119        app_state,
 8120        None,
 8121        open_options.env,
 8122        Some(Box::new(init)),
 8123        cx,
 8124    );
 8125    cx.spawn(async move |_cx| {
 8126        let (_workspace, _opened_paths) = task.await?;
 8127        // Init callback is called synchronously during workspace creation
 8128        Ok(())
 8129    })
 8130}
 8131
 8132pub fn create_and_open_local_file(
 8133    path: &'static Path,
 8134    window: &mut Window,
 8135    cx: &mut Context<Workspace>,
 8136    default_content: impl 'static + Send + FnOnce() -> Rope,
 8137) -> Task<Result<Box<dyn ItemHandle>>> {
 8138    cx.spawn_in(window, async move |workspace, cx| {
 8139        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8140        if !fs.is_file(path).await {
 8141            fs.create_file(path, Default::default()).await?;
 8142            fs.save(path, &default_content(), Default::default())
 8143                .await?;
 8144        }
 8145
 8146        let mut items = workspace
 8147            .update_in(cx, |workspace, window, cx| {
 8148                workspace.with_local_workspace(window, cx, |workspace, window, cx| {
 8149                    workspace.open_paths(
 8150                        vec![path.to_path_buf()],
 8151                        OpenOptions {
 8152                            visible: Some(OpenVisible::None),
 8153                            ..Default::default()
 8154                        },
 8155                        None,
 8156                        window,
 8157                        cx,
 8158                    )
 8159                })
 8160            })?
 8161            .await?
 8162            .await;
 8163
 8164        let item = items.pop().flatten();
 8165        item.with_context(|| format!("path {path:?} is not a file"))?
 8166    })
 8167}
 8168
 8169pub fn open_remote_project_with_new_connection(
 8170    window: WindowHandle<Workspace>,
 8171    remote_connection: Arc<dyn RemoteConnection>,
 8172    cancel_rx: oneshot::Receiver<()>,
 8173    delegate: Arc<dyn RemoteClientDelegate>,
 8174    app_state: Arc<AppState>,
 8175    paths: Vec<PathBuf>,
 8176    cx: &mut App,
 8177) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8178    cx.spawn(async move |cx| {
 8179        let (workspace_id, serialized_workspace) =
 8180            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8181                .await?;
 8182
 8183        let session = match cx
 8184            .update(|cx| {
 8185                remote::RemoteClient::new(
 8186                    ConnectionIdentifier::Workspace(workspace_id.0),
 8187                    remote_connection,
 8188                    cancel_rx,
 8189                    delegate,
 8190                    cx,
 8191                )
 8192            })?
 8193            .await?
 8194        {
 8195            Some(result) => result,
 8196            None => return Ok(Vec::new()),
 8197        };
 8198
 8199        let project = cx.update(|cx| {
 8200            project::Project::remote(
 8201                session,
 8202                app_state.client.clone(),
 8203                app_state.node_runtime.clone(),
 8204                app_state.user_store.clone(),
 8205                app_state.languages.clone(),
 8206                app_state.fs.clone(),
 8207                true,
 8208                cx,
 8209            )
 8210        })?;
 8211
 8212        open_remote_project_inner(
 8213            project,
 8214            paths,
 8215            workspace_id,
 8216            serialized_workspace,
 8217            app_state,
 8218            window,
 8219            cx,
 8220        )
 8221        .await
 8222    })
 8223}
 8224
 8225pub fn open_remote_project_with_existing_connection(
 8226    connection_options: RemoteConnectionOptions,
 8227    project: Entity<Project>,
 8228    paths: Vec<PathBuf>,
 8229    app_state: Arc<AppState>,
 8230    window: WindowHandle<Workspace>,
 8231    cx: &mut AsyncApp,
 8232) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8233    cx.spawn(async move |cx| {
 8234        let (workspace_id, serialized_workspace) =
 8235            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8236
 8237        open_remote_project_inner(
 8238            project,
 8239            paths,
 8240            workspace_id,
 8241            serialized_workspace,
 8242            app_state,
 8243            window,
 8244            cx,
 8245        )
 8246        .await
 8247    })
 8248}
 8249
 8250async fn open_remote_project_inner(
 8251    project: Entity<Project>,
 8252    paths: Vec<PathBuf>,
 8253    workspace_id: WorkspaceId,
 8254    serialized_workspace: Option<SerializedWorkspace>,
 8255    app_state: Arc<AppState>,
 8256    window: WindowHandle<Workspace>,
 8257    cx: &mut AsyncApp,
 8258) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8259    let toolchains = DB.toolchains(workspace_id).await?;
 8260    for (toolchain, worktree_path, path) in toolchains {
 8261        project
 8262            .update(cx, |this, cx| {
 8263                let Some(worktree_id) =
 8264                    this.find_worktree(&worktree_path, cx)
 8265                        .and_then(|(worktree, rel_path)| {
 8266                            if rel_path.is_empty() {
 8267                                Some(worktree.read(cx).id())
 8268                            } else {
 8269                                None
 8270                            }
 8271                        })
 8272                else {
 8273                    return Task::ready(None);
 8274                };
 8275
 8276                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8277            })?
 8278            .await;
 8279    }
 8280    let mut project_paths_to_open = vec![];
 8281    let mut project_path_errors = vec![];
 8282
 8283    for path in paths {
 8284        let result = cx
 8285            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))?
 8286            .await;
 8287        match result {
 8288            Ok((_, project_path)) => {
 8289                project_paths_to_open.push((path.clone(), Some(project_path)));
 8290            }
 8291            Err(error) => {
 8292                project_path_errors.push(error);
 8293            }
 8294        };
 8295    }
 8296
 8297    if project_paths_to_open.is_empty() {
 8298        return Err(project_path_errors.pop().context("no paths given")?);
 8299    }
 8300
 8301    if let Some(detach_session_task) = window
 8302        .update(cx, |_workspace, window, cx| {
 8303            cx.spawn_in(window, async move |this, cx| {
 8304                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))
 8305            })
 8306        })
 8307        .ok()
 8308    {
 8309        detach_session_task.await.ok();
 8310    }
 8311
 8312    cx.update_window(window.into(), |_, window, cx| {
 8313        window.replace_root(cx, |window, cx| {
 8314            telemetry::event!("SSH Project Opened");
 8315
 8316            let mut workspace =
 8317                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8318            workspace.update_history(cx);
 8319
 8320            if let Some(ref serialized) = serialized_workspace {
 8321                workspace.centered_layout = serialized.centered_layout;
 8322            }
 8323
 8324            workspace
 8325        });
 8326    })?;
 8327
 8328    let items = window
 8329        .update(cx, |_, window, cx| {
 8330            window.activate_window();
 8331            open_items(serialized_workspace, project_paths_to_open, window, cx)
 8332        })?
 8333        .await?;
 8334
 8335    window.update(cx, |workspace, _, cx| {
 8336        for error in project_path_errors {
 8337            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8338                if let Some(path) = error.error_tag("path") {
 8339                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8340                }
 8341            } else {
 8342                workspace.show_error(&error, cx)
 8343            }
 8344        }
 8345    })?;
 8346
 8347    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8348}
 8349
 8350fn deserialize_remote_project(
 8351    connection_options: RemoteConnectionOptions,
 8352    paths: Vec<PathBuf>,
 8353    cx: &AsyncApp,
 8354) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8355    cx.background_spawn(async move {
 8356        let remote_connection_id = persistence::DB
 8357            .get_or_create_remote_connection(connection_options)
 8358            .await?;
 8359
 8360        let serialized_workspace =
 8361            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8362
 8363        let workspace_id = if let Some(workspace_id) =
 8364            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8365        {
 8366            workspace_id
 8367        } else {
 8368            persistence::DB.next_id().await?
 8369        };
 8370
 8371        Ok((workspace_id, serialized_workspace))
 8372    })
 8373}
 8374
 8375pub fn join_in_room_project(
 8376    project_id: u64,
 8377    follow_user_id: u64,
 8378    app_state: Arc<AppState>,
 8379    cx: &mut App,
 8380) -> Task<Result<()>> {
 8381    let windows = cx.windows();
 8382    cx.spawn(async move |cx| {
 8383        let existing_workspace = windows.into_iter().find_map(|window_handle| {
 8384            window_handle
 8385                .downcast::<Workspace>()
 8386                .and_then(|window_handle| {
 8387                    window_handle
 8388                        .update(cx, |workspace, _window, cx| {
 8389                            if workspace.project().read(cx).remote_id() == Some(project_id) {
 8390                                Some(window_handle)
 8391                            } else {
 8392                                None
 8393                            }
 8394                        })
 8395                        .unwrap_or(None)
 8396                })
 8397        });
 8398
 8399        let workspace = if let Some(existing_workspace) = existing_workspace {
 8400            existing_workspace
 8401        } else {
 8402            let active_call = cx.update(|cx| ActiveCall::global(cx))?;
 8403            let room = active_call
 8404                .read_with(cx, |call, _| call.room().cloned())?
 8405                .context("not in a call")?;
 8406            let project = room
 8407                .update(cx, |room, cx| {
 8408                    room.join_project(
 8409                        project_id,
 8410                        app_state.languages.clone(),
 8411                        app_state.fs.clone(),
 8412                        cx,
 8413                    )
 8414                })?
 8415                .await?;
 8416
 8417            let window_bounds_override = window_bounds_env_override();
 8418            cx.update(|cx| {
 8419                let mut options = (app_state.build_window_options)(None, cx);
 8420                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8421                cx.open_window(options, |window, cx| {
 8422                    cx.new(|cx| {
 8423                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8424                    })
 8425                })
 8426            })??
 8427        };
 8428
 8429        workspace.update(cx, |workspace, window, cx| {
 8430            cx.activate(true);
 8431            window.activate_window();
 8432
 8433            if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8434                let follow_peer_id = room
 8435                    .read(cx)
 8436                    .remote_participants()
 8437                    .iter()
 8438                    .find(|(_, participant)| participant.user.id == follow_user_id)
 8439                    .map(|(_, p)| p.peer_id)
 8440                    .or_else(|| {
 8441                        // If we couldn't follow the given user, follow the host instead.
 8442                        let collaborator = workspace
 8443                            .project()
 8444                            .read(cx)
 8445                            .collaborators()
 8446                            .values()
 8447                            .find(|collaborator| collaborator.is_host)?;
 8448                        Some(collaborator.peer_id)
 8449                    });
 8450
 8451                if let Some(follow_peer_id) = follow_peer_id {
 8452                    workspace.follow(follow_peer_id, window, cx);
 8453                }
 8454            }
 8455        })?;
 8456
 8457        anyhow::Ok(())
 8458    })
 8459}
 8460
 8461pub fn reload(cx: &mut App) {
 8462    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 8463    let mut workspace_windows = cx
 8464        .windows()
 8465        .into_iter()
 8466        .filter_map(|window| window.downcast::<Workspace>())
 8467        .collect::<Vec<_>>();
 8468
 8469    // If multiple windows have unsaved changes, and need a save prompt,
 8470    // prompt in the active window before switching to a different window.
 8471    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 8472
 8473    let mut prompt = None;
 8474    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 8475        prompt = window
 8476            .update(cx, |_, window, cx| {
 8477                window.prompt(
 8478                    PromptLevel::Info,
 8479                    "Are you sure you want to restart?",
 8480                    None,
 8481                    &["Restart", "Cancel"],
 8482                    cx,
 8483                )
 8484            })
 8485            .ok();
 8486    }
 8487
 8488    cx.spawn(async move |cx| {
 8489        if let Some(prompt) = prompt {
 8490            let answer = prompt.await?;
 8491            if answer != 0 {
 8492                return Ok(());
 8493            }
 8494        }
 8495
 8496        // If the user cancels any save prompt, then keep the app open.
 8497        for window in workspace_windows {
 8498            if let Ok(should_close) = window.update(cx, |workspace, window, cx| {
 8499                workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 8500            }) && !should_close.await?
 8501            {
 8502                return Ok(());
 8503            }
 8504        }
 8505        cx.update(|cx| cx.restart())
 8506    })
 8507    .detach_and_log_err(cx);
 8508}
 8509
 8510fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 8511    let mut parts = value.split(',');
 8512    let x: usize = parts.next()?.parse().ok()?;
 8513    let y: usize = parts.next()?.parse().ok()?;
 8514    Some(point(px(x as f32), px(y as f32)))
 8515}
 8516
 8517fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 8518    let mut parts = value.split(',');
 8519    let width: usize = parts.next()?.parse().ok()?;
 8520    let height: usize = parts.next()?.parse().ok()?;
 8521    Some(size(px(width as f32), px(height as f32)))
 8522}
 8523
 8524/// Add client-side decorations (rounded corners, shadows, resize handling) when appropriate.
 8525pub fn client_side_decorations(
 8526    element: impl IntoElement,
 8527    window: &mut Window,
 8528    cx: &mut App,
 8529) -> Stateful<Div> {
 8530    const BORDER_SIZE: Pixels = px(1.0);
 8531    let decorations = window.window_decorations();
 8532
 8533    match decorations {
 8534        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 8535        Decorations::Server => window.set_client_inset(px(0.0)),
 8536    }
 8537
 8538    struct GlobalResizeEdge(ResizeEdge);
 8539    impl Global for GlobalResizeEdge {}
 8540
 8541    div()
 8542        .id("window-backdrop")
 8543        .bg(transparent_black())
 8544        .map(|div| match decorations {
 8545            Decorations::Server => div,
 8546            Decorations::Client { tiling, .. } => div
 8547                .when(!(tiling.top || tiling.right), |div| {
 8548                    div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8549                })
 8550                .when(!(tiling.top || tiling.left), |div| {
 8551                    div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8552                })
 8553                .when(!(tiling.bottom || tiling.right), |div| {
 8554                    div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8555                })
 8556                .when(!(tiling.bottom || tiling.left), |div| {
 8557                    div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8558                })
 8559                .when(!tiling.top, |div| {
 8560                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8561                })
 8562                .when(!tiling.bottom, |div| {
 8563                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8564                })
 8565                .when(!tiling.left, |div| {
 8566                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8567                })
 8568                .when(!tiling.right, |div| {
 8569                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 8570                })
 8571                .on_mouse_move(move |e, window, cx| {
 8572                    let size = window.window_bounds().get_bounds().size;
 8573                    let pos = e.position;
 8574
 8575                    let new_edge =
 8576                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 8577
 8578                    let edge = cx.try_global::<GlobalResizeEdge>();
 8579                    if new_edge != edge.map(|edge| edge.0) {
 8580                        window
 8581                            .window_handle()
 8582                            .update(cx, |workspace, _, cx| {
 8583                                cx.notify(workspace.entity_id());
 8584                            })
 8585                            .ok();
 8586                    }
 8587                })
 8588                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 8589                    let size = window.window_bounds().get_bounds().size;
 8590                    let pos = e.position;
 8591
 8592                    let edge = match resize_edge(
 8593                        pos,
 8594                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 8595                        size,
 8596                        tiling,
 8597                    ) {
 8598                        Some(value) => value,
 8599                        None => return,
 8600                    };
 8601
 8602                    window.start_window_resize(edge);
 8603                }),
 8604        })
 8605        .size_full()
 8606        .child(
 8607            div()
 8608                .cursor(CursorStyle::Arrow)
 8609                .map(|div| match decorations {
 8610                    Decorations::Server => div,
 8611                    Decorations::Client { tiling } => div
 8612                        .border_color(cx.theme().colors().border)
 8613                        .when(!(tiling.top || tiling.right), |div| {
 8614                            div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8615                        })
 8616                        .when(!(tiling.top || tiling.left), |div| {
 8617                            div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8618                        })
 8619                        .when(!(tiling.bottom || tiling.right), |div| {
 8620                            div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8621                        })
 8622                        .when(!(tiling.bottom || tiling.left), |div| {
 8623                            div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING)
 8624                        })
 8625                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 8626                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 8627                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 8628                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 8629                        .when(!tiling.is_tiled(), |div| {
 8630                            div.shadow(vec![gpui::BoxShadow {
 8631                                color: Hsla {
 8632                                    h: 0.,
 8633                                    s: 0.,
 8634                                    l: 0.,
 8635                                    a: 0.4,
 8636                                },
 8637                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 8638                                spread_radius: px(0.),
 8639                                offset: point(px(0.0), px(0.0)),
 8640                            }])
 8641                        }),
 8642                })
 8643                .on_mouse_move(|_e, _, cx| {
 8644                    cx.stop_propagation();
 8645                })
 8646                .size_full()
 8647                .child(element),
 8648        )
 8649        .map(|div| match decorations {
 8650            Decorations::Server => div,
 8651            Decorations::Client { tiling, .. } => div.child(
 8652                canvas(
 8653                    |_bounds, window, _| {
 8654                        window.insert_hitbox(
 8655                            Bounds::new(
 8656                                point(px(0.0), px(0.0)),
 8657                                window.window_bounds().get_bounds().size,
 8658                            ),
 8659                            HitboxBehavior::Normal,
 8660                        )
 8661                    },
 8662                    move |_bounds, hitbox, window, cx| {
 8663                        let mouse = window.mouse_position();
 8664                        let size = window.window_bounds().get_bounds().size;
 8665                        let Some(edge) =
 8666                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 8667                        else {
 8668                            return;
 8669                        };
 8670                        cx.set_global(GlobalResizeEdge(edge));
 8671                        window.set_cursor_style(
 8672                            match edge {
 8673                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 8674                                ResizeEdge::Left | ResizeEdge::Right => {
 8675                                    CursorStyle::ResizeLeftRight
 8676                                }
 8677                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 8678                                    CursorStyle::ResizeUpLeftDownRight
 8679                                }
 8680                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 8681                                    CursorStyle::ResizeUpRightDownLeft
 8682                                }
 8683                            },
 8684                            &hitbox,
 8685                        );
 8686                    },
 8687                )
 8688                .size_full()
 8689                .absolute(),
 8690            ),
 8691        })
 8692}
 8693
 8694fn resize_edge(
 8695    pos: Point<Pixels>,
 8696    shadow_size: Pixels,
 8697    window_size: Size<Pixels>,
 8698    tiling: Tiling,
 8699) -> Option<ResizeEdge> {
 8700    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 8701    if bounds.contains(&pos) {
 8702        return None;
 8703    }
 8704
 8705    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 8706    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 8707    if !tiling.top && top_left_bounds.contains(&pos) {
 8708        return Some(ResizeEdge::TopLeft);
 8709    }
 8710
 8711    let top_right_bounds = Bounds::new(
 8712        Point::new(window_size.width - corner_size.width, px(0.)),
 8713        corner_size,
 8714    );
 8715    if !tiling.top && top_right_bounds.contains(&pos) {
 8716        return Some(ResizeEdge::TopRight);
 8717    }
 8718
 8719    let bottom_left_bounds = Bounds::new(
 8720        Point::new(px(0.), window_size.height - corner_size.height),
 8721        corner_size,
 8722    );
 8723    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 8724        return Some(ResizeEdge::BottomLeft);
 8725    }
 8726
 8727    let bottom_right_bounds = Bounds::new(
 8728        Point::new(
 8729            window_size.width - corner_size.width,
 8730            window_size.height - corner_size.height,
 8731        ),
 8732        corner_size,
 8733    );
 8734    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 8735        return Some(ResizeEdge::BottomRight);
 8736    }
 8737
 8738    if !tiling.top && pos.y < shadow_size {
 8739        Some(ResizeEdge::Top)
 8740    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 8741        Some(ResizeEdge::Bottom)
 8742    } else if !tiling.left && pos.x < shadow_size {
 8743        Some(ResizeEdge::Left)
 8744    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 8745        Some(ResizeEdge::Right)
 8746    } else {
 8747        None
 8748    }
 8749}
 8750
 8751fn join_pane_into_active(
 8752    active_pane: &Entity<Pane>,
 8753    pane: &Entity<Pane>,
 8754    window: &mut Window,
 8755    cx: &mut App,
 8756) {
 8757    if pane == active_pane {
 8758    } else if pane.read(cx).items_len() == 0 {
 8759        pane.update(cx, |_, cx| {
 8760            cx.emit(pane::Event::Remove {
 8761                focus_on_pane: None,
 8762            });
 8763        })
 8764    } else {
 8765        move_all_items(pane, active_pane, window, cx);
 8766    }
 8767}
 8768
 8769fn move_all_items(
 8770    from_pane: &Entity<Pane>,
 8771    to_pane: &Entity<Pane>,
 8772    window: &mut Window,
 8773    cx: &mut App,
 8774) {
 8775    let destination_is_different = from_pane != to_pane;
 8776    let mut moved_items = 0;
 8777    for (item_ix, item_handle) in from_pane
 8778        .read(cx)
 8779        .items()
 8780        .enumerate()
 8781        .map(|(ix, item)| (ix, item.clone()))
 8782        .collect::<Vec<_>>()
 8783    {
 8784        let ix = item_ix - moved_items;
 8785        if destination_is_different {
 8786            // Close item from previous pane
 8787            from_pane.update(cx, |source, cx| {
 8788                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 8789            });
 8790            moved_items += 1;
 8791        }
 8792
 8793        // This automatically removes duplicate items in the pane
 8794        to_pane.update(cx, |destination, cx| {
 8795            destination.add_item(item_handle, true, true, None, window, cx);
 8796            window.focus(&destination.focus_handle(cx), cx)
 8797        });
 8798    }
 8799}
 8800
 8801pub fn move_item(
 8802    source: &Entity<Pane>,
 8803    destination: &Entity<Pane>,
 8804    item_id_to_move: EntityId,
 8805    destination_index: usize,
 8806    activate: bool,
 8807    window: &mut Window,
 8808    cx: &mut App,
 8809) {
 8810    let Some((item_ix, item_handle)) = source
 8811        .read(cx)
 8812        .items()
 8813        .enumerate()
 8814        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 8815        .map(|(ix, item)| (ix, item.clone()))
 8816    else {
 8817        // Tab was closed during drag
 8818        return;
 8819    };
 8820
 8821    if source != destination {
 8822        // Close item from previous pane
 8823        source.update(cx, |source, cx| {
 8824            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 8825        });
 8826    }
 8827
 8828    // This automatically removes duplicate items in the pane
 8829    destination.update(cx, |destination, cx| {
 8830        destination.add_item_inner(
 8831            item_handle,
 8832            activate,
 8833            activate,
 8834            activate,
 8835            Some(destination_index),
 8836            window,
 8837            cx,
 8838        );
 8839        if activate {
 8840            window.focus(&destination.focus_handle(cx), cx)
 8841        }
 8842    });
 8843}
 8844
 8845pub fn move_active_item(
 8846    source: &Entity<Pane>,
 8847    destination: &Entity<Pane>,
 8848    focus_destination: bool,
 8849    close_if_empty: bool,
 8850    window: &mut Window,
 8851    cx: &mut App,
 8852) {
 8853    if source == destination {
 8854        return;
 8855    }
 8856    let Some(active_item) = source.read(cx).active_item() else {
 8857        return;
 8858    };
 8859    source.update(cx, |source_pane, cx| {
 8860        let item_id = active_item.item_id();
 8861        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 8862        destination.update(cx, |target_pane, cx| {
 8863            target_pane.add_item(
 8864                active_item,
 8865                focus_destination,
 8866                focus_destination,
 8867                Some(target_pane.items_len()),
 8868                window,
 8869                cx,
 8870            );
 8871        });
 8872    });
 8873}
 8874
 8875pub fn clone_active_item(
 8876    workspace_id: Option<WorkspaceId>,
 8877    source: &Entity<Pane>,
 8878    destination: &Entity<Pane>,
 8879    focus_destination: bool,
 8880    window: &mut Window,
 8881    cx: &mut App,
 8882) {
 8883    if source == destination {
 8884        return;
 8885    }
 8886    let Some(active_item) = source.read(cx).active_item() else {
 8887        return;
 8888    };
 8889    if !active_item.can_split(cx) {
 8890        return;
 8891    }
 8892    let destination = destination.downgrade();
 8893    let task = active_item.clone_on_split(workspace_id, window, cx);
 8894    window
 8895        .spawn(cx, async move |cx| {
 8896            let Some(clone) = task.await else {
 8897                return;
 8898            };
 8899            destination
 8900                .update_in(cx, |target_pane, window, cx| {
 8901                    target_pane.add_item(
 8902                        clone,
 8903                        focus_destination,
 8904                        focus_destination,
 8905                        Some(target_pane.items_len()),
 8906                        window,
 8907                        cx,
 8908                    );
 8909                })
 8910                .log_err();
 8911        })
 8912        .detach();
 8913}
 8914
 8915#[derive(Debug)]
 8916pub struct WorkspacePosition {
 8917    pub window_bounds: Option<WindowBounds>,
 8918    pub display: Option<Uuid>,
 8919    pub centered_layout: bool,
 8920}
 8921
 8922pub fn remote_workspace_position_from_db(
 8923    connection_options: RemoteConnectionOptions,
 8924    paths_to_open: &[PathBuf],
 8925    cx: &App,
 8926) -> Task<Result<WorkspacePosition>> {
 8927    let paths = paths_to_open.to_vec();
 8928
 8929    cx.background_spawn(async move {
 8930        let remote_connection_id = persistence::DB
 8931            .get_or_create_remote_connection(connection_options)
 8932            .await
 8933            .context("fetching serialized ssh project")?;
 8934        let serialized_workspace =
 8935            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8936
 8937        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 8938            (Some(WindowBounds::Windowed(bounds)), None)
 8939        } else {
 8940            let restorable_bounds = serialized_workspace
 8941                .as_ref()
 8942                .and_then(|workspace| {
 8943                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 8944                })
 8945                .or_else(|| persistence::read_default_window_bounds());
 8946
 8947            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 8948                (Some(serialized_bounds), Some(serialized_display))
 8949            } else {
 8950                (None, None)
 8951            }
 8952        };
 8953
 8954        let centered_layout = serialized_workspace
 8955            .as_ref()
 8956            .map(|w| w.centered_layout)
 8957            .unwrap_or(false);
 8958
 8959        Ok(WorkspacePosition {
 8960            window_bounds,
 8961            display,
 8962            centered_layout,
 8963        })
 8964    })
 8965}
 8966
 8967pub fn with_active_or_new_workspace(
 8968    cx: &mut App,
 8969    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 8970) {
 8971    match cx.active_window().and_then(|w| w.downcast::<Workspace>()) {
 8972        Some(workspace) => {
 8973            cx.defer(move |cx| {
 8974                workspace
 8975                    .update(cx, |workspace, window, cx| f(workspace, window, cx))
 8976                    .log_err();
 8977            });
 8978        }
 8979        None => {
 8980            let app_state = AppState::global(cx);
 8981            if let Some(app_state) = app_state.upgrade() {
 8982                open_new(
 8983                    OpenOptions::default(),
 8984                    app_state,
 8985                    cx,
 8986                    move |workspace, window, cx| f(workspace, window, cx),
 8987                )
 8988                .detach_and_log_err(cx);
 8989            }
 8990        }
 8991    }
 8992}
 8993
 8994#[cfg(test)]
 8995mod tests {
 8996    use std::{cell::RefCell, rc::Rc};
 8997
 8998    use super::*;
 8999    use crate::{
 9000        dock::{PanelEvent, test::TestPanel},
 9001        item::{
 9002            ItemBufferKind, ItemEvent,
 9003            test::{TestItem, TestProjectItem},
 9004        },
 9005    };
 9006    use fs::FakeFs;
 9007    use gpui::{
 9008        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9009        UpdateGlobal, VisualTestContext, px,
 9010    };
 9011    use project::{Project, ProjectEntryId};
 9012    use serde_json::json;
 9013    use settings::SettingsStore;
 9014    use util::rel_path::rel_path;
 9015
 9016    #[gpui::test]
 9017    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9018        init_test(cx);
 9019
 9020        let fs = FakeFs::new(cx.executor());
 9021        let project = Project::test(fs, [], cx).await;
 9022        let (workspace, cx) =
 9023            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9024
 9025        // Adding an item with no ambiguity renders the tab without detail.
 9026        let item1 = cx.new(|cx| {
 9027            let mut item = TestItem::new(cx);
 9028            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9029            item
 9030        });
 9031        workspace.update_in(cx, |workspace, window, cx| {
 9032            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9033        });
 9034        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9035
 9036        // Adding an item that creates ambiguity increases the level of detail on
 9037        // both tabs.
 9038        let item2 = cx.new_window_entity(|_window, cx| {
 9039            let mut item = TestItem::new(cx);
 9040            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9041            item
 9042        });
 9043        workspace.update_in(cx, |workspace, window, cx| {
 9044            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9045        });
 9046        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9047        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9048
 9049        // Adding an item that creates ambiguity increases the level of detail only
 9050        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9051        // we stop at the highest detail available.
 9052        let item3 = cx.new(|cx| {
 9053            let mut item = TestItem::new(cx);
 9054            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9055            item
 9056        });
 9057        workspace.update_in(cx, |workspace, window, cx| {
 9058            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9059        });
 9060        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9061        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9062        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9063    }
 9064
 9065    #[gpui::test]
 9066    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9067        init_test(cx);
 9068
 9069        let fs = FakeFs::new(cx.executor());
 9070        fs.insert_tree(
 9071            "/root1",
 9072            json!({
 9073                "one.txt": "",
 9074                "two.txt": "",
 9075            }),
 9076        )
 9077        .await;
 9078        fs.insert_tree(
 9079            "/root2",
 9080            json!({
 9081                "three.txt": "",
 9082            }),
 9083        )
 9084        .await;
 9085
 9086        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9087        let (workspace, cx) =
 9088            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9089        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9090        let worktree_id = project.update(cx, |project, cx| {
 9091            project.worktrees(cx).next().unwrap().read(cx).id()
 9092        });
 9093
 9094        let item1 = cx.new(|cx| {
 9095            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9096        });
 9097        let item2 = cx.new(|cx| {
 9098            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9099        });
 9100
 9101        // Add an item to an empty pane
 9102        workspace.update_in(cx, |workspace, window, cx| {
 9103            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9104        });
 9105        project.update(cx, |project, cx| {
 9106            assert_eq!(
 9107                project.active_entry(),
 9108                project
 9109                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9110                    .map(|e| e.id)
 9111            );
 9112        });
 9113        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9114
 9115        // Add a second item to a non-empty pane
 9116        workspace.update_in(cx, |workspace, window, cx| {
 9117            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9118        });
 9119        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9120        project.update(cx, |project, cx| {
 9121            assert_eq!(
 9122                project.active_entry(),
 9123                project
 9124                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9125                    .map(|e| e.id)
 9126            );
 9127        });
 9128
 9129        // Close the active item
 9130        pane.update_in(cx, |pane, window, cx| {
 9131            pane.close_active_item(&Default::default(), window, cx)
 9132        })
 9133        .await
 9134        .unwrap();
 9135        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9136        project.update(cx, |project, cx| {
 9137            assert_eq!(
 9138                project.active_entry(),
 9139                project
 9140                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9141                    .map(|e| e.id)
 9142            );
 9143        });
 9144
 9145        // Add a project folder
 9146        project
 9147            .update(cx, |project, cx| {
 9148                project.find_or_create_worktree("root2", true, cx)
 9149            })
 9150            .await
 9151            .unwrap();
 9152        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9153
 9154        // Remove a project folder
 9155        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9156        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9157    }
 9158
 9159    #[gpui::test]
 9160    async fn test_close_window(cx: &mut TestAppContext) {
 9161        init_test(cx);
 9162
 9163        let fs = FakeFs::new(cx.executor());
 9164        fs.insert_tree("/root", json!({ "one": "" })).await;
 9165
 9166        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9167        let (workspace, cx) =
 9168            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9169
 9170        // When there are no dirty items, there's nothing to do.
 9171        let item1 = cx.new(TestItem::new);
 9172        workspace.update_in(cx, |w, window, cx| {
 9173            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9174        });
 9175        let task = workspace.update_in(cx, |w, window, cx| {
 9176            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9177        });
 9178        assert!(task.await.unwrap());
 9179
 9180        // When there are dirty untitled items, prompt to save each one. If the user
 9181        // cancels any prompt, then abort.
 9182        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9183        let item3 = cx.new(|cx| {
 9184            TestItem::new(cx)
 9185                .with_dirty(true)
 9186                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9187        });
 9188        workspace.update_in(cx, |w, window, cx| {
 9189            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9190            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9191        });
 9192        let task = workspace.update_in(cx, |w, window, cx| {
 9193            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9194        });
 9195        cx.executor().run_until_parked();
 9196        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9197        cx.executor().run_until_parked();
 9198        assert!(!cx.has_pending_prompt());
 9199        assert!(!task.await.unwrap());
 9200    }
 9201
 9202    #[gpui::test]
 9203    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9204        init_test(cx);
 9205
 9206        // Register TestItem as a serializable item
 9207        cx.update(|cx| {
 9208            register_serializable_item::<TestItem>(cx);
 9209        });
 9210
 9211        let fs = FakeFs::new(cx.executor());
 9212        fs.insert_tree("/root", json!({ "one": "" })).await;
 9213
 9214        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9215        let (workspace, cx) =
 9216            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9217
 9218        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9219        let item1 = cx.new(|cx| {
 9220            TestItem::new(cx)
 9221                .with_dirty(true)
 9222                .with_serialize(|| Some(Task::ready(Ok(()))))
 9223        });
 9224        let item2 = cx.new(|cx| {
 9225            TestItem::new(cx)
 9226                .with_dirty(true)
 9227                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9228                .with_serialize(|| Some(Task::ready(Ok(()))))
 9229        });
 9230        workspace.update_in(cx, |w, window, cx| {
 9231            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9232            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9233        });
 9234        let task = workspace.update_in(cx, |w, window, cx| {
 9235            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9236        });
 9237        assert!(task.await.unwrap());
 9238    }
 9239
 9240    #[gpui::test]
 9241    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9242        init_test(cx);
 9243
 9244        let fs = FakeFs::new(cx.executor());
 9245
 9246        let project = Project::test(fs, None, cx).await;
 9247        let (workspace, cx) =
 9248            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9249
 9250        let item1 = cx.new(|cx| {
 9251            TestItem::new(cx)
 9252                .with_dirty(true)
 9253                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9254        });
 9255        let item2 = cx.new(|cx| {
 9256            TestItem::new(cx)
 9257                .with_dirty(true)
 9258                .with_conflict(true)
 9259                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9260        });
 9261        let item3 = cx.new(|cx| {
 9262            TestItem::new(cx)
 9263                .with_dirty(true)
 9264                .with_conflict(true)
 9265                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9266        });
 9267        let item4 = cx.new(|cx| {
 9268            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9269                let project_item = TestProjectItem::new_untitled(cx);
 9270                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9271                project_item
 9272            }])
 9273        });
 9274        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9275            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9276            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9277            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9278            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9279            workspace.active_pane().clone()
 9280        });
 9281
 9282        let close_items = pane.update_in(cx, |pane, window, cx| {
 9283            pane.activate_item(1, true, true, window, cx);
 9284            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9285            let item1_id = item1.item_id();
 9286            let item3_id = item3.item_id();
 9287            let item4_id = item4.item_id();
 9288            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9289                [item1_id, item3_id, item4_id].contains(&id)
 9290            })
 9291        });
 9292        cx.executor().run_until_parked();
 9293
 9294        assert!(cx.has_pending_prompt());
 9295        cx.simulate_prompt_answer("Save all");
 9296
 9297        cx.executor().run_until_parked();
 9298
 9299        // Item 1 is saved. There's a prompt to save item 3.
 9300        pane.update(cx, |pane, cx| {
 9301            assert_eq!(item1.read(cx).save_count, 1);
 9302            assert_eq!(item1.read(cx).save_as_count, 0);
 9303            assert_eq!(item1.read(cx).reload_count, 0);
 9304            assert_eq!(pane.items_len(), 3);
 9305            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9306        });
 9307        assert!(cx.has_pending_prompt());
 9308
 9309        // Cancel saving item 3.
 9310        cx.simulate_prompt_answer("Discard");
 9311        cx.executor().run_until_parked();
 9312
 9313        // Item 3 is reloaded. There's a prompt to save item 4.
 9314        pane.update(cx, |pane, cx| {
 9315            assert_eq!(item3.read(cx).save_count, 0);
 9316            assert_eq!(item3.read(cx).save_as_count, 0);
 9317            assert_eq!(item3.read(cx).reload_count, 1);
 9318            assert_eq!(pane.items_len(), 2);
 9319            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9320        });
 9321
 9322        // There's a prompt for a path for item 4.
 9323        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9324        close_items.await.unwrap();
 9325
 9326        // The requested items are closed.
 9327        pane.update(cx, |pane, cx| {
 9328            assert_eq!(item4.read(cx).save_count, 0);
 9329            assert_eq!(item4.read(cx).save_as_count, 1);
 9330            assert_eq!(item4.read(cx).reload_count, 0);
 9331            assert_eq!(pane.items_len(), 1);
 9332            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9333        });
 9334    }
 9335
 9336    #[gpui::test]
 9337    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9338        init_test(cx);
 9339
 9340        let fs = FakeFs::new(cx.executor());
 9341        let project = Project::test(fs, [], cx).await;
 9342        let (workspace, cx) =
 9343            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9344
 9345        // Create several workspace items with single project entries, and two
 9346        // workspace items with multiple project entries.
 9347        let single_entry_items = (0..=4)
 9348            .map(|project_entry_id| {
 9349                cx.new(|cx| {
 9350                    TestItem::new(cx)
 9351                        .with_dirty(true)
 9352                        .with_project_items(&[dirty_project_item(
 9353                            project_entry_id,
 9354                            &format!("{project_entry_id}.txt"),
 9355                            cx,
 9356                        )])
 9357                })
 9358            })
 9359            .collect::<Vec<_>>();
 9360        let item_2_3 = cx.new(|cx| {
 9361            TestItem::new(cx)
 9362                .with_dirty(true)
 9363                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9364                .with_project_items(&[
 9365                    single_entry_items[2].read(cx).project_items[0].clone(),
 9366                    single_entry_items[3].read(cx).project_items[0].clone(),
 9367                ])
 9368        });
 9369        let item_3_4 = cx.new(|cx| {
 9370            TestItem::new(cx)
 9371                .with_dirty(true)
 9372                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9373                .with_project_items(&[
 9374                    single_entry_items[3].read(cx).project_items[0].clone(),
 9375                    single_entry_items[4].read(cx).project_items[0].clone(),
 9376                ])
 9377        });
 9378
 9379        // Create two panes that contain the following project entries:
 9380        //   left pane:
 9381        //     multi-entry items:   (2, 3)
 9382        //     single-entry items:  0, 2, 3, 4
 9383        //   right pane:
 9384        //     single-entry items:  4, 1
 9385        //     multi-entry items:   (3, 4)
 9386        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9387            let left_pane = workspace.active_pane().clone();
 9388            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9389            workspace.add_item_to_active_pane(
 9390                single_entry_items[0].boxed_clone(),
 9391                None,
 9392                true,
 9393                window,
 9394                cx,
 9395            );
 9396            workspace.add_item_to_active_pane(
 9397                single_entry_items[2].boxed_clone(),
 9398                None,
 9399                true,
 9400                window,
 9401                cx,
 9402            );
 9403            workspace.add_item_to_active_pane(
 9404                single_entry_items[3].boxed_clone(),
 9405                None,
 9406                true,
 9407                window,
 9408                cx,
 9409            );
 9410            workspace.add_item_to_active_pane(
 9411                single_entry_items[4].boxed_clone(),
 9412                None,
 9413                true,
 9414                window,
 9415                cx,
 9416            );
 9417
 9418            let right_pane =
 9419                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
 9420
 9421            let boxed_clone = single_entry_items[1].boxed_clone();
 9422            let right_pane = window.spawn(cx, async move |cx| {
 9423                right_pane.await.inspect(|right_pane| {
 9424                    right_pane
 9425                        .update_in(cx, |pane, window, cx| {
 9426                            pane.add_item(boxed_clone, true, true, None, window, cx);
 9427                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
 9428                        })
 9429                        .unwrap();
 9430                })
 9431            });
 9432
 9433            (left_pane, right_pane)
 9434        });
 9435        let right_pane = right_pane.await.unwrap();
 9436        cx.focus(&right_pane);
 9437
 9438        let close = right_pane.update_in(cx, |pane, window, cx| {
 9439            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9440                .unwrap()
 9441        });
 9442        cx.executor().run_until_parked();
 9443
 9444        let msg = cx.pending_prompt().unwrap().0;
 9445        assert!(msg.contains("1.txt"));
 9446        assert!(!msg.contains("2.txt"));
 9447        assert!(!msg.contains("3.txt"));
 9448        assert!(!msg.contains("4.txt"));
 9449
 9450        // With best-effort close, cancelling item 1 keeps it open but items 4
 9451        // and (3,4) still close since their entries exist in left pane.
 9452        cx.simulate_prompt_answer("Cancel");
 9453        close.await;
 9454
 9455        right_pane.read_with(cx, |pane, _| {
 9456            assert_eq!(pane.items_len(), 1);
 9457        });
 9458
 9459        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
 9460        left_pane
 9461            .update_in(cx, |left_pane, window, cx| {
 9462                left_pane.close_item_by_id(
 9463                    single_entry_items[3].entity_id(),
 9464                    SaveIntent::Skip,
 9465                    window,
 9466                    cx,
 9467                )
 9468            })
 9469            .await
 9470            .unwrap();
 9471
 9472        let close = left_pane.update_in(cx, |pane, window, cx| {
 9473            pane.close_all_items(&CloseAllItems::default(), window, cx)
 9474                .unwrap()
 9475        });
 9476        cx.executor().run_until_parked();
 9477
 9478        let details = cx.pending_prompt().unwrap().1;
 9479        assert!(details.contains("0.txt"));
 9480        assert!(details.contains("3.txt"));
 9481        assert!(details.contains("4.txt"));
 9482        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
 9483        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
 9484        // assert!(!details.contains("2.txt"));
 9485
 9486        cx.simulate_prompt_answer("Save all");
 9487        cx.executor().run_until_parked();
 9488        close.await;
 9489
 9490        left_pane.read_with(cx, |pane, _| {
 9491            assert_eq!(pane.items_len(), 0);
 9492        });
 9493    }
 9494
 9495    #[gpui::test]
 9496    async fn test_autosave(cx: &mut gpui::TestAppContext) {
 9497        init_test(cx);
 9498
 9499        let fs = FakeFs::new(cx.executor());
 9500        let project = Project::test(fs, [], cx).await;
 9501        let (workspace, cx) =
 9502            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9503        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9504
 9505        let item = cx.new(|cx| {
 9506            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9507        });
 9508        let item_id = item.entity_id();
 9509        workspace.update_in(cx, |workspace, window, cx| {
 9510            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9511        });
 9512
 9513        // Autosave on window change.
 9514        item.update(cx, |item, cx| {
 9515            SettingsStore::update_global(cx, |settings, cx| {
 9516                settings.update_user_settings(cx, |settings| {
 9517                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
 9518                })
 9519            });
 9520            item.is_dirty = true;
 9521        });
 9522
 9523        // Deactivating the window saves the file.
 9524        cx.deactivate_window();
 9525        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9526
 9527        // Re-activating the window doesn't save the file.
 9528        cx.update(|window, _| window.activate_window());
 9529        cx.executor().run_until_parked();
 9530        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
 9531
 9532        // Autosave on focus change.
 9533        item.update_in(cx, |item, window, cx| {
 9534            cx.focus_self(window);
 9535            SettingsStore::update_global(cx, |settings, cx| {
 9536                settings.update_user_settings(cx, |settings| {
 9537                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9538                })
 9539            });
 9540            item.is_dirty = true;
 9541        });
 9542        // Blurring the item saves the file.
 9543        item.update_in(cx, |_, window, _| window.blur());
 9544        cx.executor().run_until_parked();
 9545        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
 9546
 9547        // Deactivating the window still saves the file.
 9548        item.update_in(cx, |item, window, cx| {
 9549            cx.focus_self(window);
 9550            item.is_dirty = true;
 9551        });
 9552        cx.deactivate_window();
 9553        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
 9554
 9555        // Autosave after delay.
 9556        item.update(cx, |item, cx| {
 9557            SettingsStore::update_global(cx, |settings, cx| {
 9558                settings.update_user_settings(cx, |settings| {
 9559                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
 9560                        milliseconds: 500.into(),
 9561                    });
 9562                })
 9563            });
 9564            item.is_dirty = true;
 9565            cx.emit(ItemEvent::Edit);
 9566        });
 9567
 9568        // Delay hasn't fully expired, so the file is still dirty and unsaved.
 9569        cx.executor().advance_clock(Duration::from_millis(250));
 9570        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
 9571
 9572        // After delay expires, the file is saved.
 9573        cx.executor().advance_clock(Duration::from_millis(250));
 9574        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9575
 9576        // Autosave after delay, should save earlier than delay if tab is closed
 9577        item.update(cx, |item, cx| {
 9578            item.is_dirty = true;
 9579            cx.emit(ItemEvent::Edit);
 9580        });
 9581        cx.executor().advance_clock(Duration::from_millis(250));
 9582        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
 9583
 9584        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
 9585        pane.update_in(cx, |pane, window, cx| {
 9586            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9587        })
 9588        .await
 9589        .unwrap();
 9590        assert!(!cx.has_pending_prompt());
 9591        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9592
 9593        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9594        workspace.update_in(cx, |workspace, window, cx| {
 9595            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9596        });
 9597        item.update_in(cx, |item, _window, cx| {
 9598            item.is_dirty = true;
 9599            for project_item in &mut item.project_items {
 9600                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9601            }
 9602        });
 9603        cx.run_until_parked();
 9604        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
 9605
 9606        // Autosave on focus change, ensuring closing the tab counts as such.
 9607        item.update(cx, |item, cx| {
 9608            SettingsStore::update_global(cx, |settings, cx| {
 9609                settings.update_user_settings(cx, |settings| {
 9610                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
 9611                })
 9612            });
 9613            item.is_dirty = true;
 9614            for project_item in &mut item.project_items {
 9615                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9616            }
 9617        });
 9618
 9619        pane.update_in(cx, |pane, window, cx| {
 9620            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9621        })
 9622        .await
 9623        .unwrap();
 9624        assert!(!cx.has_pending_prompt());
 9625        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9626
 9627        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
 9628        workspace.update_in(cx, |workspace, window, cx| {
 9629            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9630        });
 9631        item.update_in(cx, |item, window, cx| {
 9632            item.project_items[0].update(cx, |item, _| {
 9633                item.entry_id = None;
 9634            });
 9635            item.is_dirty = true;
 9636            window.blur();
 9637        });
 9638        cx.run_until_parked();
 9639        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9640
 9641        // Ensure autosave is prevented for deleted files also when closing the buffer.
 9642        let _close_items = pane.update_in(cx, |pane, window, cx| {
 9643            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
 9644        });
 9645        cx.run_until_parked();
 9646        assert!(cx.has_pending_prompt());
 9647        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
 9648    }
 9649
 9650    #[gpui::test]
 9651    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
 9652        init_test(cx);
 9653
 9654        let fs = FakeFs::new(cx.executor());
 9655
 9656        let project = Project::test(fs, [], cx).await;
 9657        let (workspace, cx) =
 9658            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9659
 9660        let item = cx.new(|cx| {
 9661            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9662        });
 9663        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9664        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
 9665        let toolbar_notify_count = Rc::new(RefCell::new(0));
 9666
 9667        workspace.update_in(cx, |workspace, window, cx| {
 9668            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
 9669            let toolbar_notification_count = toolbar_notify_count.clone();
 9670            cx.observe_in(&toolbar, window, move |_, _, _, _| {
 9671                *toolbar_notification_count.borrow_mut() += 1
 9672            })
 9673            .detach();
 9674        });
 9675
 9676        pane.read_with(cx, |pane, _| {
 9677            assert!(!pane.can_navigate_backward());
 9678            assert!(!pane.can_navigate_forward());
 9679        });
 9680
 9681        item.update_in(cx, |item, _, cx| {
 9682            item.set_state("one".to_string(), cx);
 9683        });
 9684
 9685        // Toolbar must be notified to re-render the navigation buttons
 9686        assert_eq!(*toolbar_notify_count.borrow(), 1);
 9687
 9688        pane.read_with(cx, |pane, _| {
 9689            assert!(pane.can_navigate_backward());
 9690            assert!(!pane.can_navigate_forward());
 9691        });
 9692
 9693        workspace
 9694            .update_in(cx, |workspace, window, cx| {
 9695                workspace.go_back(pane.downgrade(), window, cx)
 9696            })
 9697            .await
 9698            .unwrap();
 9699
 9700        assert_eq!(*toolbar_notify_count.borrow(), 2);
 9701        pane.read_with(cx, |pane, _| {
 9702            assert!(!pane.can_navigate_backward());
 9703            assert!(pane.can_navigate_forward());
 9704        });
 9705    }
 9706
 9707    #[gpui::test]
 9708    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
 9709        init_test(cx);
 9710        let fs = FakeFs::new(cx.executor());
 9711
 9712        let project = Project::test(fs, [], cx).await;
 9713        let (workspace, cx) =
 9714            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9715
 9716        let panel = workspace.update_in(cx, |workspace, window, cx| {
 9717            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
 9718            workspace.add_panel(panel.clone(), window, cx);
 9719
 9720            workspace
 9721                .right_dock()
 9722                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
 9723
 9724            panel
 9725        });
 9726
 9727        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9728        pane.update_in(cx, |pane, window, cx| {
 9729            let item = cx.new(TestItem::new);
 9730            pane.add_item(Box::new(item), true, true, None, window, cx);
 9731        });
 9732
 9733        // Transfer focus from center to panel
 9734        workspace.update_in(cx, |workspace, window, cx| {
 9735            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9736        });
 9737
 9738        workspace.update_in(cx, |workspace, window, cx| {
 9739            assert!(workspace.right_dock().read(cx).is_open());
 9740            assert!(!panel.is_zoomed(window, cx));
 9741            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9742        });
 9743
 9744        // Transfer focus from panel to center
 9745        workspace.update_in(cx, |workspace, window, cx| {
 9746            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9747        });
 9748
 9749        workspace.update_in(cx, |workspace, window, cx| {
 9750            assert!(workspace.right_dock().read(cx).is_open());
 9751            assert!(!panel.is_zoomed(window, cx));
 9752            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9753        });
 9754
 9755        // Close the dock
 9756        workspace.update_in(cx, |workspace, window, cx| {
 9757            workspace.toggle_dock(DockPosition::Right, window, cx);
 9758        });
 9759
 9760        workspace.update_in(cx, |workspace, window, cx| {
 9761            assert!(!workspace.right_dock().read(cx).is_open());
 9762            assert!(!panel.is_zoomed(window, cx));
 9763            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9764        });
 9765
 9766        // Open the dock
 9767        workspace.update_in(cx, |workspace, window, cx| {
 9768            workspace.toggle_dock(DockPosition::Right, window, cx);
 9769        });
 9770
 9771        workspace.update_in(cx, |workspace, window, cx| {
 9772            assert!(workspace.right_dock().read(cx).is_open());
 9773            assert!(!panel.is_zoomed(window, cx));
 9774            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9775        });
 9776
 9777        // Focus and zoom panel
 9778        panel.update_in(cx, |panel, window, cx| {
 9779            cx.focus_self(window);
 9780            panel.set_zoomed(true, window, cx)
 9781        });
 9782
 9783        workspace.update_in(cx, |workspace, window, cx| {
 9784            assert!(workspace.right_dock().read(cx).is_open());
 9785            assert!(panel.is_zoomed(window, cx));
 9786            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9787        });
 9788
 9789        // Transfer focus to the center closes the dock
 9790        workspace.update_in(cx, |workspace, window, cx| {
 9791            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9792        });
 9793
 9794        workspace.update_in(cx, |workspace, window, cx| {
 9795            assert!(!workspace.right_dock().read(cx).is_open());
 9796            assert!(panel.is_zoomed(window, cx));
 9797            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9798        });
 9799
 9800        // Transferring focus back to the panel keeps it zoomed
 9801        workspace.update_in(cx, |workspace, window, cx| {
 9802            workspace.toggle_panel_focus::<TestPanel>(window, cx);
 9803        });
 9804
 9805        workspace.update_in(cx, |workspace, window, cx| {
 9806            assert!(workspace.right_dock().read(cx).is_open());
 9807            assert!(panel.is_zoomed(window, cx));
 9808            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9809        });
 9810
 9811        // Close the dock while it is zoomed
 9812        workspace.update_in(cx, |workspace, window, cx| {
 9813            workspace.toggle_dock(DockPosition::Right, window, cx)
 9814        });
 9815
 9816        workspace.update_in(cx, |workspace, window, cx| {
 9817            assert!(!workspace.right_dock().read(cx).is_open());
 9818            assert!(panel.is_zoomed(window, cx));
 9819            assert!(workspace.zoomed.is_none());
 9820            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9821        });
 9822
 9823        // Opening the dock, when it's zoomed, retains focus
 9824        workspace.update_in(cx, |workspace, window, cx| {
 9825            workspace.toggle_dock(DockPosition::Right, window, cx)
 9826        });
 9827
 9828        workspace.update_in(cx, |workspace, window, cx| {
 9829            assert!(workspace.right_dock().read(cx).is_open());
 9830            assert!(panel.is_zoomed(window, cx));
 9831            assert!(workspace.zoomed.is_some());
 9832            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
 9833        });
 9834
 9835        // Unzoom and close the panel, zoom the active pane.
 9836        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
 9837        workspace.update_in(cx, |workspace, window, cx| {
 9838            workspace.toggle_dock(DockPosition::Right, window, cx)
 9839        });
 9840        pane.update_in(cx, |pane, window, cx| {
 9841            pane.toggle_zoom(&Default::default(), window, cx)
 9842        });
 9843
 9844        // Opening a dock unzooms the pane.
 9845        workspace.update_in(cx, |workspace, window, cx| {
 9846            workspace.toggle_dock(DockPosition::Right, window, cx)
 9847        });
 9848        workspace.update_in(cx, |workspace, window, cx| {
 9849            let pane = pane.read(cx);
 9850            assert!(!pane.is_zoomed());
 9851            assert!(!pane.focus_handle(cx).is_focused(window));
 9852            assert!(workspace.right_dock().read(cx).is_open());
 9853            assert!(workspace.zoomed.is_none());
 9854        });
 9855    }
 9856
 9857    #[gpui::test]
 9858    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
 9859        init_test(cx);
 9860        let fs = FakeFs::new(cx.executor());
 9861
 9862        let project = Project::test(fs, [], cx).await;
 9863        let (workspace, cx) =
 9864            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9865
 9866        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
 9867            workspace.active_pane().clone()
 9868        });
 9869
 9870        // Add an item to the pane so it can be zoomed
 9871        workspace.update_in(cx, |workspace, window, cx| {
 9872            let item = cx.new(TestItem::new);
 9873            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
 9874        });
 9875
 9876        // Initially not zoomed
 9877        workspace.update_in(cx, |workspace, _window, cx| {
 9878            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
 9879            assert!(
 9880                workspace.zoomed.is_none(),
 9881                "Workspace should track no zoomed pane"
 9882            );
 9883            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
 9884        });
 9885
 9886        // Zoom In
 9887        pane.update_in(cx, |pane, window, cx| {
 9888            pane.zoom_in(&crate::ZoomIn, window, cx);
 9889        });
 9890
 9891        workspace.update_in(cx, |workspace, window, cx| {
 9892            assert!(
 9893                pane.read(cx).is_zoomed(),
 9894                "Pane should be zoomed after ZoomIn"
 9895            );
 9896            assert!(
 9897                workspace.zoomed.is_some(),
 9898                "Workspace should track the zoomed pane"
 9899            );
 9900            assert!(
 9901                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9902                "ZoomIn should focus the pane"
 9903            );
 9904        });
 9905
 9906        // Zoom In again is a no-op
 9907        pane.update_in(cx, |pane, window, cx| {
 9908            pane.zoom_in(&crate::ZoomIn, window, cx);
 9909        });
 9910
 9911        workspace.update_in(cx, |workspace, window, cx| {
 9912            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
 9913            assert!(
 9914                workspace.zoomed.is_some(),
 9915                "Workspace still tracks zoomed pane"
 9916            );
 9917            assert!(
 9918                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
 9919                "Pane remains focused after repeated ZoomIn"
 9920            );
 9921        });
 9922
 9923        // Zoom Out
 9924        pane.update_in(cx, |pane, window, cx| {
 9925            pane.zoom_out(&crate::ZoomOut, window, cx);
 9926        });
 9927
 9928        workspace.update_in(cx, |workspace, _window, cx| {
 9929            assert!(
 9930                !pane.read(cx).is_zoomed(),
 9931                "Pane should unzoom after ZoomOut"
 9932            );
 9933            assert!(
 9934                workspace.zoomed.is_none(),
 9935                "Workspace clears zoom tracking after ZoomOut"
 9936            );
 9937        });
 9938
 9939        // Zoom Out again is a no-op
 9940        pane.update_in(cx, |pane, window, cx| {
 9941            pane.zoom_out(&crate::ZoomOut, window, cx);
 9942        });
 9943
 9944        workspace.update_in(cx, |workspace, _window, cx| {
 9945            assert!(
 9946                !pane.read(cx).is_zoomed(),
 9947                "Second ZoomOut keeps pane unzoomed"
 9948            );
 9949            assert!(
 9950                workspace.zoomed.is_none(),
 9951                "Workspace remains without zoomed pane"
 9952            );
 9953        });
 9954    }
 9955
 9956    #[gpui::test]
 9957    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
 9958        init_test(cx);
 9959        let fs = FakeFs::new(cx.executor());
 9960
 9961        let project = Project::test(fs, [], cx).await;
 9962        let (workspace, cx) =
 9963            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9964        workspace.update_in(cx, |workspace, window, cx| {
 9965            // Open two docks
 9966            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9967            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9968
 9969            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9970            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 9971
 9972            assert!(left_dock.read(cx).is_open());
 9973            assert!(right_dock.read(cx).is_open());
 9974        });
 9975
 9976        workspace.update_in(cx, |workspace, window, cx| {
 9977            // Toggle all docks - should close both
 9978            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9979
 9980            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9981            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9982            assert!(!left_dock.read(cx).is_open());
 9983            assert!(!right_dock.read(cx).is_open());
 9984        });
 9985
 9986        workspace.update_in(cx, |workspace, window, cx| {
 9987            // Toggle again - should reopen both
 9988            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
 9989
 9990            let left_dock = workspace.dock_at_position(DockPosition::Left);
 9991            let right_dock = workspace.dock_at_position(DockPosition::Right);
 9992            assert!(left_dock.read(cx).is_open());
 9993            assert!(right_dock.read(cx).is_open());
 9994        });
 9995    }
 9996
 9997    #[gpui::test]
 9998    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
 9999        init_test(cx);
10000        let fs = FakeFs::new(cx.executor());
10001
10002        let project = Project::test(fs, [], cx).await;
10003        let (workspace, cx) =
10004            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10005        workspace.update_in(cx, |workspace, window, cx| {
10006            // Open two docks
10007            let left_dock = workspace.dock_at_position(DockPosition::Left);
10008            let right_dock = workspace.dock_at_position(DockPosition::Right);
10009
10010            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10011            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10012
10013            assert!(left_dock.read(cx).is_open());
10014            assert!(right_dock.read(cx).is_open());
10015        });
10016
10017        workspace.update_in(cx, |workspace, window, cx| {
10018            // Close them manually
10019            workspace.toggle_dock(DockPosition::Left, window, cx);
10020            workspace.toggle_dock(DockPosition::Right, window, cx);
10021
10022            let left_dock = workspace.dock_at_position(DockPosition::Left);
10023            let right_dock = workspace.dock_at_position(DockPosition::Right);
10024            assert!(!left_dock.read(cx).is_open());
10025            assert!(!right_dock.read(cx).is_open());
10026        });
10027
10028        workspace.update_in(cx, |workspace, window, cx| {
10029            // Toggle all docks - only last closed (right dock) should reopen
10030            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10031
10032            let left_dock = workspace.dock_at_position(DockPosition::Left);
10033            let right_dock = workspace.dock_at_position(DockPosition::Right);
10034            assert!(!left_dock.read(cx).is_open());
10035            assert!(right_dock.read(cx).is_open());
10036        });
10037    }
10038
10039    #[gpui::test]
10040    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10041        init_test(cx);
10042        let fs = FakeFs::new(cx.executor());
10043        let project = Project::test(fs, [], cx).await;
10044        let (workspace, cx) =
10045            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10046
10047        // Open two docks (left and right) with one panel each
10048        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10049            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10050            workspace.add_panel(left_panel.clone(), window, cx);
10051
10052            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10053            workspace.add_panel(right_panel.clone(), window, cx);
10054
10055            workspace.toggle_dock(DockPosition::Left, window, cx);
10056            workspace.toggle_dock(DockPosition::Right, window, cx);
10057
10058            // Verify initial state
10059            assert!(
10060                workspace.left_dock().read(cx).is_open(),
10061                "Left dock should be open"
10062            );
10063            assert_eq!(
10064                workspace
10065                    .left_dock()
10066                    .read(cx)
10067                    .visible_panel()
10068                    .unwrap()
10069                    .panel_id(),
10070                left_panel.panel_id(),
10071                "Left panel should be visible in left dock"
10072            );
10073            assert!(
10074                workspace.right_dock().read(cx).is_open(),
10075                "Right dock should be open"
10076            );
10077            assert_eq!(
10078                workspace
10079                    .right_dock()
10080                    .read(cx)
10081                    .visible_panel()
10082                    .unwrap()
10083                    .panel_id(),
10084                right_panel.panel_id(),
10085                "Right panel should be visible in right dock"
10086            );
10087            assert!(
10088                !workspace.bottom_dock().read(cx).is_open(),
10089                "Bottom dock should be closed"
10090            );
10091
10092            (left_panel, right_panel)
10093        });
10094
10095        // Focus the left panel and move it to the next position (bottom dock)
10096        workspace.update_in(cx, |workspace, window, cx| {
10097            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10098            assert!(
10099                left_panel.read(cx).focus_handle(cx).is_focused(window),
10100                "Left panel should be focused"
10101            );
10102        });
10103
10104        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10105
10106        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10107        workspace.update(cx, |workspace, cx| {
10108            assert!(
10109                !workspace.left_dock().read(cx).is_open(),
10110                "Left dock should be closed"
10111            );
10112            assert!(
10113                workspace.bottom_dock().read(cx).is_open(),
10114                "Bottom dock should now be open"
10115            );
10116            assert_eq!(
10117                left_panel.read(cx).position,
10118                DockPosition::Bottom,
10119                "Left panel should now be in the bottom dock"
10120            );
10121            assert_eq!(
10122                workspace
10123                    .bottom_dock()
10124                    .read(cx)
10125                    .visible_panel()
10126                    .unwrap()
10127                    .panel_id(),
10128                left_panel.panel_id(),
10129                "Left panel should be the visible panel in the bottom dock"
10130            );
10131        });
10132
10133        // Toggle all docks off
10134        workspace.update_in(cx, |workspace, window, cx| {
10135            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10136            assert!(
10137                !workspace.left_dock().read(cx).is_open(),
10138                "Left dock should be closed"
10139            );
10140            assert!(
10141                !workspace.right_dock().read(cx).is_open(),
10142                "Right dock should be closed"
10143            );
10144            assert!(
10145                !workspace.bottom_dock().read(cx).is_open(),
10146                "Bottom dock should be closed"
10147            );
10148        });
10149
10150        // Toggle all docks back on and verify positions are restored
10151        workspace.update_in(cx, |workspace, window, cx| {
10152            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10153            assert!(
10154                !workspace.left_dock().read(cx).is_open(),
10155                "Left dock should remain closed"
10156            );
10157            assert!(
10158                workspace.right_dock().read(cx).is_open(),
10159                "Right dock should remain open"
10160            );
10161            assert!(
10162                workspace.bottom_dock().read(cx).is_open(),
10163                "Bottom dock should remain open"
10164            );
10165            assert_eq!(
10166                left_panel.read(cx).position,
10167                DockPosition::Bottom,
10168                "Left panel should remain in the bottom dock"
10169            );
10170            assert_eq!(
10171                right_panel.read(cx).position,
10172                DockPosition::Right,
10173                "Right panel should remain in the right dock"
10174            );
10175            assert_eq!(
10176                workspace
10177                    .bottom_dock()
10178                    .read(cx)
10179                    .visible_panel()
10180                    .unwrap()
10181                    .panel_id(),
10182                left_panel.panel_id(),
10183                "Left panel should be the visible panel in the right dock"
10184            );
10185        });
10186    }
10187
10188    #[gpui::test]
10189    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10190        init_test(cx);
10191
10192        let fs = FakeFs::new(cx.executor());
10193
10194        let project = Project::test(fs, None, cx).await;
10195        let (workspace, cx) =
10196            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10197
10198        // Let's arrange the panes like this:
10199        //
10200        // +-----------------------+
10201        // |         top           |
10202        // +------+--------+-------+
10203        // | left | center | right |
10204        // +------+--------+-------+
10205        // |        bottom         |
10206        // +-----------------------+
10207
10208        let top_item = cx.new(|cx| {
10209            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10210        });
10211        let bottom_item = cx.new(|cx| {
10212            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10213        });
10214        let left_item = cx.new(|cx| {
10215            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10216        });
10217        let right_item = cx.new(|cx| {
10218            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10219        });
10220        let center_item = cx.new(|cx| {
10221            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10222        });
10223
10224        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10225            let top_pane_id = workspace.active_pane().entity_id();
10226            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10227            workspace.split_pane(
10228                workspace.active_pane().clone(),
10229                SplitDirection::Down,
10230                window,
10231                cx,
10232            );
10233            top_pane_id
10234        });
10235        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10236            let bottom_pane_id = workspace.active_pane().entity_id();
10237            workspace.add_item_to_active_pane(
10238                Box::new(bottom_item.clone()),
10239                None,
10240                false,
10241                window,
10242                cx,
10243            );
10244            workspace.split_pane(
10245                workspace.active_pane().clone(),
10246                SplitDirection::Up,
10247                window,
10248                cx,
10249            );
10250            bottom_pane_id
10251        });
10252        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10253            let left_pane_id = workspace.active_pane().entity_id();
10254            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10255            workspace.split_pane(
10256                workspace.active_pane().clone(),
10257                SplitDirection::Right,
10258                window,
10259                cx,
10260            );
10261            left_pane_id
10262        });
10263        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10264            let right_pane_id = workspace.active_pane().entity_id();
10265            workspace.add_item_to_active_pane(
10266                Box::new(right_item.clone()),
10267                None,
10268                false,
10269                window,
10270                cx,
10271            );
10272            workspace.split_pane(
10273                workspace.active_pane().clone(),
10274                SplitDirection::Left,
10275                window,
10276                cx,
10277            );
10278            right_pane_id
10279        });
10280        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10281            let center_pane_id = workspace.active_pane().entity_id();
10282            workspace.add_item_to_active_pane(
10283                Box::new(center_item.clone()),
10284                None,
10285                false,
10286                window,
10287                cx,
10288            );
10289            center_pane_id
10290        });
10291        cx.executor().run_until_parked();
10292
10293        workspace.update_in(cx, |workspace, window, cx| {
10294            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10295
10296            // Join into next from center pane into right
10297            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10298        });
10299
10300        workspace.update_in(cx, |workspace, window, cx| {
10301            let active_pane = workspace.active_pane();
10302            assert_eq!(right_pane_id, active_pane.entity_id());
10303            assert_eq!(2, active_pane.read(cx).items_len());
10304            let item_ids_in_pane =
10305                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10306            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10307            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10308
10309            // Join into next from right pane into bottom
10310            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10311        });
10312
10313        workspace.update_in(cx, |workspace, window, cx| {
10314            let active_pane = workspace.active_pane();
10315            assert_eq!(bottom_pane_id, active_pane.entity_id());
10316            assert_eq!(3, active_pane.read(cx).items_len());
10317            let item_ids_in_pane =
10318                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10319            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10320            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10321            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10322
10323            // Join into next from bottom pane into left
10324            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10325        });
10326
10327        workspace.update_in(cx, |workspace, window, cx| {
10328            let active_pane = workspace.active_pane();
10329            assert_eq!(left_pane_id, active_pane.entity_id());
10330            assert_eq!(4, active_pane.read(cx).items_len());
10331            let item_ids_in_pane =
10332                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10333            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10334            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10335            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10336            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10337
10338            // Join into next from left pane into top
10339            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10340        });
10341
10342        workspace.update_in(cx, |workspace, window, cx| {
10343            let active_pane = workspace.active_pane();
10344            assert_eq!(top_pane_id, active_pane.entity_id());
10345            assert_eq!(5, active_pane.read(cx).items_len());
10346            let item_ids_in_pane =
10347                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10348            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10349            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10350            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10351            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10352            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10353
10354            // Single pane left: no-op
10355            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10356        });
10357
10358        workspace.update(cx, |workspace, _cx| {
10359            let active_pane = workspace.active_pane();
10360            assert_eq!(top_pane_id, active_pane.entity_id());
10361        });
10362    }
10363
10364    fn add_an_item_to_active_pane(
10365        cx: &mut VisualTestContext,
10366        workspace: &Entity<Workspace>,
10367        item_id: u64,
10368    ) -> Entity<TestItem> {
10369        let item = cx.new(|cx| {
10370            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10371                item_id,
10372                "item{item_id}.txt",
10373                cx,
10374            )])
10375        });
10376        workspace.update_in(cx, |workspace, window, cx| {
10377            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10378        });
10379        item
10380    }
10381
10382    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10383        workspace.update_in(cx, |workspace, window, cx| {
10384            workspace.split_pane(
10385                workspace.active_pane().clone(),
10386                SplitDirection::Right,
10387                window,
10388                cx,
10389            )
10390        })
10391    }
10392
10393    #[gpui::test]
10394    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10395        init_test(cx);
10396        let fs = FakeFs::new(cx.executor());
10397        let project = Project::test(fs, None, cx).await;
10398        let (workspace, cx) =
10399            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10400
10401        add_an_item_to_active_pane(cx, &workspace, 1);
10402        split_pane(cx, &workspace);
10403        add_an_item_to_active_pane(cx, &workspace, 2);
10404        split_pane(cx, &workspace); // empty pane
10405        split_pane(cx, &workspace);
10406        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
10407
10408        cx.executor().run_until_parked();
10409
10410        workspace.update(cx, |workspace, cx| {
10411            let num_panes = workspace.panes().len();
10412            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10413            let active_item = workspace
10414                .active_pane()
10415                .read(cx)
10416                .active_item()
10417                .expect("item is in focus");
10418
10419            assert_eq!(num_panes, 4);
10420            assert_eq!(num_items_in_current_pane, 1);
10421            assert_eq!(active_item.item_id(), last_item.item_id());
10422        });
10423
10424        workspace.update_in(cx, |workspace, window, cx| {
10425            workspace.join_all_panes(window, cx);
10426        });
10427
10428        workspace.update(cx, |workspace, cx| {
10429            let num_panes = workspace.panes().len();
10430            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
10431            let active_item = workspace
10432                .active_pane()
10433                .read(cx)
10434                .active_item()
10435                .expect("item is in focus");
10436
10437            assert_eq!(num_panes, 1);
10438            assert_eq!(num_items_in_current_pane, 3);
10439            assert_eq!(active_item.item_id(), last_item.item_id());
10440        });
10441    }
10442    struct TestModal(FocusHandle);
10443
10444    impl TestModal {
10445        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
10446            Self(cx.focus_handle())
10447        }
10448    }
10449
10450    impl EventEmitter<DismissEvent> for TestModal {}
10451
10452    impl Focusable for TestModal {
10453        fn focus_handle(&self, _cx: &App) -> FocusHandle {
10454            self.0.clone()
10455        }
10456    }
10457
10458    impl ModalView for TestModal {}
10459
10460    impl Render for TestModal {
10461        fn render(
10462            &mut self,
10463            _window: &mut Window,
10464            _cx: &mut Context<TestModal>,
10465        ) -> impl IntoElement {
10466            div().track_focus(&self.0)
10467        }
10468    }
10469
10470    #[gpui::test]
10471    async fn test_panels(cx: &mut gpui::TestAppContext) {
10472        init_test(cx);
10473        let fs = FakeFs::new(cx.executor());
10474
10475        let project = Project::test(fs, [], cx).await;
10476        let (workspace, cx) =
10477            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10478
10479        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
10480            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10481            workspace.add_panel(panel_1.clone(), window, cx);
10482            workspace.toggle_dock(DockPosition::Left, window, cx);
10483            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10484            workspace.add_panel(panel_2.clone(), window, cx);
10485            workspace.toggle_dock(DockPosition::Right, window, cx);
10486
10487            let left_dock = workspace.left_dock();
10488            assert_eq!(
10489                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10490                panel_1.panel_id()
10491            );
10492            assert_eq!(
10493                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10494                panel_1.size(window, cx)
10495            );
10496
10497            left_dock.update(cx, |left_dock, cx| {
10498                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
10499            });
10500            assert_eq!(
10501                workspace
10502                    .right_dock()
10503                    .read(cx)
10504                    .visible_panel()
10505                    .unwrap()
10506                    .panel_id(),
10507                panel_2.panel_id(),
10508            );
10509
10510            (panel_1, panel_2)
10511        });
10512
10513        // Move panel_1 to the right
10514        panel_1.update_in(cx, |panel_1, window, cx| {
10515            panel_1.set_position(DockPosition::Right, window, cx)
10516        });
10517
10518        workspace.update_in(cx, |workspace, window, cx| {
10519            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
10520            // Since it was the only panel on the left, the left dock should now be closed.
10521            assert!(!workspace.left_dock().read(cx).is_open());
10522            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
10523            let right_dock = workspace.right_dock();
10524            assert_eq!(
10525                right_dock.read(cx).visible_panel().unwrap().panel_id(),
10526                panel_1.panel_id()
10527            );
10528            assert_eq!(
10529                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
10530                px(1337.)
10531            );
10532
10533            // Now we move panel_2 to the left
10534            panel_2.set_position(DockPosition::Left, window, cx);
10535        });
10536
10537        workspace.update(cx, |workspace, cx| {
10538            // Since panel_2 was not visible on the right, we don't open the left dock.
10539            assert!(!workspace.left_dock().read(cx).is_open());
10540            // And the right dock is unaffected in its displaying of panel_1
10541            assert!(workspace.right_dock().read(cx).is_open());
10542            assert_eq!(
10543                workspace
10544                    .right_dock()
10545                    .read(cx)
10546                    .visible_panel()
10547                    .unwrap()
10548                    .panel_id(),
10549                panel_1.panel_id(),
10550            );
10551        });
10552
10553        // Move panel_1 back to the left
10554        panel_1.update_in(cx, |panel_1, window, cx| {
10555            panel_1.set_position(DockPosition::Left, window, cx)
10556        });
10557
10558        workspace.update_in(cx, |workspace, window, cx| {
10559            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
10560            let left_dock = workspace.left_dock();
10561            assert!(left_dock.read(cx).is_open());
10562            assert_eq!(
10563                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10564                panel_1.panel_id()
10565            );
10566            assert_eq!(
10567                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
10568                px(1337.)
10569            );
10570            // And the right dock should be closed as it no longer has any panels.
10571            assert!(!workspace.right_dock().read(cx).is_open());
10572
10573            // Now we move panel_1 to the bottom
10574            panel_1.set_position(DockPosition::Bottom, window, cx);
10575        });
10576
10577        workspace.update_in(cx, |workspace, window, cx| {
10578            // Since panel_1 was visible on the left, we close the left dock.
10579            assert!(!workspace.left_dock().read(cx).is_open());
10580            // The bottom dock is sized based on the panel's default size,
10581            // since the panel orientation changed from vertical to horizontal.
10582            let bottom_dock = workspace.bottom_dock();
10583            assert_eq!(
10584                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
10585                panel_1.size(window, cx),
10586            );
10587            // Close bottom dock and move panel_1 back to the left.
10588            bottom_dock.update(cx, |bottom_dock, cx| {
10589                bottom_dock.set_open(false, window, cx)
10590            });
10591            panel_1.set_position(DockPosition::Left, window, cx);
10592        });
10593
10594        // Emit activated event on panel 1
10595        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
10596
10597        // Now the left dock is open and panel_1 is active and focused.
10598        workspace.update_in(cx, |workspace, window, cx| {
10599            let left_dock = workspace.left_dock();
10600            assert!(left_dock.read(cx).is_open());
10601            assert_eq!(
10602                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10603                panel_1.panel_id(),
10604            );
10605            assert!(panel_1.focus_handle(cx).is_focused(window));
10606        });
10607
10608        // Emit closed event on panel 2, which is not active
10609        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10610
10611        // Wo don't close the left dock, because panel_2 wasn't the active panel
10612        workspace.update(cx, |workspace, cx| {
10613            let left_dock = workspace.left_dock();
10614            assert!(left_dock.read(cx).is_open());
10615            assert_eq!(
10616                left_dock.read(cx).visible_panel().unwrap().panel_id(),
10617                panel_1.panel_id(),
10618            );
10619        });
10620
10621        // Emitting a ZoomIn event shows the panel as zoomed.
10622        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
10623        workspace.read_with(cx, |workspace, _| {
10624            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10625            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
10626        });
10627
10628        // Move panel to another dock while it is zoomed
10629        panel_1.update_in(cx, |panel, window, cx| {
10630            panel.set_position(DockPosition::Right, window, cx)
10631        });
10632        workspace.read_with(cx, |workspace, _| {
10633            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10634
10635            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10636        });
10637
10638        // This is a helper for getting a:
10639        // - valid focus on an element,
10640        // - that isn't a part of the panes and panels system of the Workspace,
10641        // - and doesn't trigger the 'on_focus_lost' API.
10642        let focus_other_view = {
10643            let workspace = workspace.clone();
10644            move |cx: &mut VisualTestContext| {
10645                workspace.update_in(cx, |workspace, window, cx| {
10646                    if workspace.active_modal::<TestModal>(cx).is_some() {
10647                        workspace.toggle_modal(window, cx, TestModal::new);
10648                        workspace.toggle_modal(window, cx, TestModal::new);
10649                    } else {
10650                        workspace.toggle_modal(window, cx, TestModal::new);
10651                    }
10652                })
10653            }
10654        };
10655
10656        // If focus is transferred to another view that's not a panel or another pane, we still show
10657        // the panel as zoomed.
10658        focus_other_view(cx);
10659        workspace.read_with(cx, |workspace, _| {
10660            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10661            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10662        });
10663
10664        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
10665        workspace.update_in(cx, |_workspace, window, cx| {
10666            cx.focus_self(window);
10667        });
10668        workspace.read_with(cx, |workspace, _| {
10669            assert_eq!(workspace.zoomed, None);
10670            assert_eq!(workspace.zoomed_position, None);
10671        });
10672
10673        // If focus is transferred again to another view that's not a panel or a pane, we won't
10674        // show the panel as zoomed because it wasn't zoomed before.
10675        focus_other_view(cx);
10676        workspace.read_with(cx, |workspace, _| {
10677            assert_eq!(workspace.zoomed, None);
10678            assert_eq!(workspace.zoomed_position, None);
10679        });
10680
10681        // When the panel is activated, it is zoomed again.
10682        cx.dispatch_action(ToggleRightDock);
10683        workspace.read_with(cx, |workspace, _| {
10684            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
10685            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
10686        });
10687
10688        // Emitting a ZoomOut event unzooms the panel.
10689        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
10690        workspace.read_with(cx, |workspace, _| {
10691            assert_eq!(workspace.zoomed, None);
10692            assert_eq!(workspace.zoomed_position, None);
10693        });
10694
10695        // Emit closed event on panel 1, which is active
10696        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
10697
10698        // Now the left dock is closed, because panel_1 was the active panel
10699        workspace.update(cx, |workspace, cx| {
10700            let right_dock = workspace.right_dock();
10701            assert!(!right_dock.read(cx).is_open());
10702        });
10703    }
10704
10705    #[gpui::test]
10706    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
10707        init_test(cx);
10708
10709        let fs = FakeFs::new(cx.background_executor.clone());
10710        let project = Project::test(fs, [], cx).await;
10711        let (workspace, cx) =
10712            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10713        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10714
10715        let dirty_regular_buffer = cx.new(|cx| {
10716            TestItem::new(cx)
10717                .with_dirty(true)
10718                .with_label("1.txt")
10719                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10720        });
10721        let dirty_regular_buffer_2 = cx.new(|cx| {
10722            TestItem::new(cx)
10723                .with_dirty(true)
10724                .with_label("2.txt")
10725                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10726        });
10727        let dirty_multi_buffer_with_both = cx.new(|cx| {
10728            TestItem::new(cx)
10729                .with_dirty(true)
10730                .with_buffer_kind(ItemBufferKind::Multibuffer)
10731                .with_label("Fake Project Search")
10732                .with_project_items(&[
10733                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10734                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10735                ])
10736        });
10737        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10738        workspace.update_in(cx, |workspace, window, cx| {
10739            workspace.add_item(
10740                pane.clone(),
10741                Box::new(dirty_regular_buffer.clone()),
10742                None,
10743                false,
10744                false,
10745                window,
10746                cx,
10747            );
10748            workspace.add_item(
10749                pane.clone(),
10750                Box::new(dirty_regular_buffer_2.clone()),
10751                None,
10752                false,
10753                false,
10754                window,
10755                cx,
10756            );
10757            workspace.add_item(
10758                pane.clone(),
10759                Box::new(dirty_multi_buffer_with_both.clone()),
10760                None,
10761                false,
10762                false,
10763                window,
10764                cx,
10765            );
10766        });
10767
10768        pane.update_in(cx, |pane, window, cx| {
10769            pane.activate_item(2, true, true, window, cx);
10770            assert_eq!(
10771                pane.active_item().unwrap().item_id(),
10772                multi_buffer_with_both_files_id,
10773                "Should select the multi buffer in the pane"
10774            );
10775        });
10776        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10777            pane.close_other_items(
10778                &CloseOtherItems {
10779                    save_intent: Some(SaveIntent::Save),
10780                    close_pinned: true,
10781                },
10782                None,
10783                window,
10784                cx,
10785            )
10786        });
10787        cx.background_executor.run_until_parked();
10788        assert!(!cx.has_pending_prompt());
10789        close_all_but_multi_buffer_task
10790            .await
10791            .expect("Closing all buffers but the multi buffer failed");
10792        pane.update(cx, |pane, cx| {
10793            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
10794            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
10795            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
10796            assert_eq!(pane.items_len(), 1);
10797            assert_eq!(
10798                pane.active_item().unwrap().item_id(),
10799                multi_buffer_with_both_files_id,
10800                "Should have only the multi buffer left in the pane"
10801            );
10802            assert!(
10803                dirty_multi_buffer_with_both.read(cx).is_dirty,
10804                "The multi buffer containing the unsaved buffer should still be dirty"
10805            );
10806        });
10807
10808        dirty_regular_buffer.update(cx, |buffer, cx| {
10809            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
10810        });
10811
10812        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10813            pane.close_active_item(
10814                &CloseActiveItem {
10815                    save_intent: Some(SaveIntent::Close),
10816                    close_pinned: false,
10817                },
10818                window,
10819                cx,
10820            )
10821        });
10822        cx.background_executor.run_until_parked();
10823        assert!(
10824            cx.has_pending_prompt(),
10825            "Dirty multi buffer should prompt a save dialog"
10826        );
10827        cx.simulate_prompt_answer("Save");
10828        cx.background_executor.run_until_parked();
10829        close_multi_buffer_task
10830            .await
10831            .expect("Closing the multi buffer failed");
10832        pane.update(cx, |pane, cx| {
10833            assert_eq!(
10834                dirty_multi_buffer_with_both.read(cx).save_count,
10835                1,
10836                "Multi buffer item should get be saved"
10837            );
10838            // Test impl does not save inner items, so we do not assert them
10839            assert_eq!(
10840                pane.items_len(),
10841                0,
10842                "No more items should be left in the pane"
10843            );
10844            assert!(pane.active_item().is_none());
10845        });
10846    }
10847
10848    #[gpui::test]
10849    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
10850        cx: &mut TestAppContext,
10851    ) {
10852        init_test(cx);
10853
10854        let fs = FakeFs::new(cx.background_executor.clone());
10855        let project = Project::test(fs, [], cx).await;
10856        let (workspace, cx) =
10857            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10858        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10859
10860        let dirty_regular_buffer = cx.new(|cx| {
10861            TestItem::new(cx)
10862                .with_dirty(true)
10863                .with_label("1.txt")
10864                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10865        });
10866        let dirty_regular_buffer_2 = cx.new(|cx| {
10867            TestItem::new(cx)
10868                .with_dirty(true)
10869                .with_label("2.txt")
10870                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10871        });
10872        let clear_regular_buffer = cx.new(|cx| {
10873            TestItem::new(cx)
10874                .with_label("3.txt")
10875                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
10876        });
10877
10878        let dirty_multi_buffer_with_both = cx.new(|cx| {
10879            TestItem::new(cx)
10880                .with_dirty(true)
10881                .with_buffer_kind(ItemBufferKind::Multibuffer)
10882                .with_label("Fake Project Search")
10883                .with_project_items(&[
10884                    dirty_regular_buffer.read(cx).project_items[0].clone(),
10885                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
10886                    clear_regular_buffer.read(cx).project_items[0].clone(),
10887                ])
10888        });
10889        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
10890        workspace.update_in(cx, |workspace, window, cx| {
10891            workspace.add_item(
10892                pane.clone(),
10893                Box::new(dirty_regular_buffer.clone()),
10894                None,
10895                false,
10896                false,
10897                window,
10898                cx,
10899            );
10900            workspace.add_item(
10901                pane.clone(),
10902                Box::new(dirty_multi_buffer_with_both.clone()),
10903                None,
10904                false,
10905                false,
10906                window,
10907                cx,
10908            );
10909        });
10910
10911        pane.update_in(cx, |pane, window, cx| {
10912            pane.activate_item(1, true, true, window, cx);
10913            assert_eq!(
10914                pane.active_item().unwrap().item_id(),
10915                multi_buffer_with_both_files_id,
10916                "Should select the multi buffer in the pane"
10917            );
10918        });
10919        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
10920            pane.close_active_item(
10921                &CloseActiveItem {
10922                    save_intent: None,
10923                    close_pinned: false,
10924                },
10925                window,
10926                cx,
10927            )
10928        });
10929        cx.background_executor.run_until_parked();
10930        assert!(
10931            cx.has_pending_prompt(),
10932            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
10933        );
10934    }
10935
10936    /// Tests that when `close_on_file_delete` is enabled, files are automatically
10937    /// closed when they are deleted from disk.
10938    #[gpui::test]
10939    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
10940        init_test(cx);
10941
10942        // Enable the close_on_disk_deletion setting
10943        cx.update_global(|store: &mut SettingsStore, cx| {
10944            store.update_user_settings(cx, |settings| {
10945                settings.workspace.close_on_file_delete = Some(true);
10946            });
10947        });
10948
10949        let fs = FakeFs::new(cx.background_executor.clone());
10950        let project = Project::test(fs, [], cx).await;
10951        let (workspace, cx) =
10952            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10953        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10954
10955        // Create a test item that simulates a file
10956        let item = cx.new(|cx| {
10957            TestItem::new(cx)
10958                .with_label("test.txt")
10959                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
10960        });
10961
10962        // Add item to workspace
10963        workspace.update_in(cx, |workspace, window, cx| {
10964            workspace.add_item(
10965                pane.clone(),
10966                Box::new(item.clone()),
10967                None,
10968                false,
10969                false,
10970                window,
10971                cx,
10972            );
10973        });
10974
10975        // Verify the item is in the pane
10976        pane.read_with(cx, |pane, _| {
10977            assert_eq!(pane.items().count(), 1);
10978        });
10979
10980        // Simulate file deletion by setting the item's deleted state
10981        item.update(cx, |item, _| {
10982            item.set_has_deleted_file(true);
10983        });
10984
10985        // Emit UpdateTab event to trigger the close behavior
10986        cx.run_until_parked();
10987        item.update(cx, |_, cx| {
10988            cx.emit(ItemEvent::UpdateTab);
10989        });
10990
10991        // Allow the close operation to complete
10992        cx.run_until_parked();
10993
10994        // Verify the item was automatically closed
10995        pane.read_with(cx, |pane, _| {
10996            assert_eq!(
10997                pane.items().count(),
10998                0,
10999                "Item should be automatically closed when file is deleted"
11000            );
11001        });
11002    }
11003
11004    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11005    /// open with a strikethrough when they are deleted from disk.
11006    #[gpui::test]
11007    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11008        init_test(cx);
11009
11010        // Ensure close_on_disk_deletion is disabled (default)
11011        cx.update_global(|store: &mut SettingsStore, cx| {
11012            store.update_user_settings(cx, |settings| {
11013                settings.workspace.close_on_file_delete = Some(false);
11014            });
11015        });
11016
11017        let fs = FakeFs::new(cx.background_executor.clone());
11018        let project = Project::test(fs, [], cx).await;
11019        let (workspace, cx) =
11020            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11021        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11022
11023        // Create a test item that simulates a file
11024        let item = cx.new(|cx| {
11025            TestItem::new(cx)
11026                .with_label("test.txt")
11027                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11028        });
11029
11030        // Add item to workspace
11031        workspace.update_in(cx, |workspace, window, cx| {
11032            workspace.add_item(
11033                pane.clone(),
11034                Box::new(item.clone()),
11035                None,
11036                false,
11037                false,
11038                window,
11039                cx,
11040            );
11041        });
11042
11043        // Verify the item is in the pane
11044        pane.read_with(cx, |pane, _| {
11045            assert_eq!(pane.items().count(), 1);
11046        });
11047
11048        // Simulate file deletion
11049        item.update(cx, |item, _| {
11050            item.set_has_deleted_file(true);
11051        });
11052
11053        // Emit UpdateTab event
11054        cx.run_until_parked();
11055        item.update(cx, |_, cx| {
11056            cx.emit(ItemEvent::UpdateTab);
11057        });
11058
11059        // Allow any potential close operation to complete
11060        cx.run_until_parked();
11061
11062        // Verify the item remains open (with strikethrough)
11063        pane.read_with(cx, |pane, _| {
11064            assert_eq!(
11065                pane.items().count(),
11066                1,
11067                "Item should remain open when close_on_disk_deletion is disabled"
11068            );
11069        });
11070
11071        // Verify the item shows as deleted
11072        item.read_with(cx, |item, _| {
11073            assert!(
11074                item.has_deleted_file,
11075                "Item should be marked as having deleted file"
11076            );
11077        });
11078    }
11079
11080    /// Tests that dirty files are not automatically closed when deleted from disk,
11081    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11082    /// unsaved changes without being prompted.
11083    #[gpui::test]
11084    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11085        init_test(cx);
11086
11087        // Enable the close_on_file_delete setting
11088        cx.update_global(|store: &mut SettingsStore, cx| {
11089            store.update_user_settings(cx, |settings| {
11090                settings.workspace.close_on_file_delete = Some(true);
11091            });
11092        });
11093
11094        let fs = FakeFs::new(cx.background_executor.clone());
11095        let project = Project::test(fs, [], cx).await;
11096        let (workspace, cx) =
11097            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11098        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11099
11100        // Create a dirty test item
11101        let item = cx.new(|cx| {
11102            TestItem::new(cx)
11103                .with_dirty(true)
11104                .with_label("test.txt")
11105                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11106        });
11107
11108        // Add item to workspace
11109        workspace.update_in(cx, |workspace, window, cx| {
11110            workspace.add_item(
11111                pane.clone(),
11112                Box::new(item.clone()),
11113                None,
11114                false,
11115                false,
11116                window,
11117                cx,
11118            );
11119        });
11120
11121        // Simulate file deletion
11122        item.update(cx, |item, _| {
11123            item.set_has_deleted_file(true);
11124        });
11125
11126        // Emit UpdateTab event to trigger the close behavior
11127        cx.run_until_parked();
11128        item.update(cx, |_, cx| {
11129            cx.emit(ItemEvent::UpdateTab);
11130        });
11131
11132        // Allow any potential close operation to complete
11133        cx.run_until_parked();
11134
11135        // Verify the item remains open (dirty files are not auto-closed)
11136        pane.read_with(cx, |pane, _| {
11137            assert_eq!(
11138                pane.items().count(),
11139                1,
11140                "Dirty items should not be automatically closed even when file is deleted"
11141            );
11142        });
11143
11144        // Verify the item is marked as deleted and still dirty
11145        item.read_with(cx, |item, _| {
11146            assert!(
11147                item.has_deleted_file,
11148                "Item should be marked as having deleted file"
11149            );
11150            assert!(item.is_dirty, "Item should still be dirty");
11151        });
11152    }
11153
11154    /// Tests that navigation history is cleaned up when files are auto-closed
11155    /// due to deletion from disk.
11156    #[gpui::test]
11157    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11158        init_test(cx);
11159
11160        // Enable the close_on_file_delete setting
11161        cx.update_global(|store: &mut SettingsStore, cx| {
11162            store.update_user_settings(cx, |settings| {
11163                settings.workspace.close_on_file_delete = Some(true);
11164            });
11165        });
11166
11167        let fs = FakeFs::new(cx.background_executor.clone());
11168        let project = Project::test(fs, [], cx).await;
11169        let (workspace, cx) =
11170            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11171        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11172
11173        // Create test items
11174        let item1 = cx.new(|cx| {
11175            TestItem::new(cx)
11176                .with_label("test1.txt")
11177                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11178        });
11179        let item1_id = item1.item_id();
11180
11181        let item2 = cx.new(|cx| {
11182            TestItem::new(cx)
11183                .with_label("test2.txt")
11184                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11185        });
11186
11187        // Add items to workspace
11188        workspace.update_in(cx, |workspace, window, cx| {
11189            workspace.add_item(
11190                pane.clone(),
11191                Box::new(item1.clone()),
11192                None,
11193                false,
11194                false,
11195                window,
11196                cx,
11197            );
11198            workspace.add_item(
11199                pane.clone(),
11200                Box::new(item2.clone()),
11201                None,
11202                false,
11203                false,
11204                window,
11205                cx,
11206            );
11207        });
11208
11209        // Activate item1 to ensure it gets navigation entries
11210        pane.update_in(cx, |pane, window, cx| {
11211            pane.activate_item(0, true, true, window, cx);
11212        });
11213
11214        // Switch to item2 and back to create navigation history
11215        pane.update_in(cx, |pane, window, cx| {
11216            pane.activate_item(1, true, true, window, cx);
11217        });
11218        cx.run_until_parked();
11219
11220        pane.update_in(cx, |pane, window, cx| {
11221            pane.activate_item(0, true, true, window, cx);
11222        });
11223        cx.run_until_parked();
11224
11225        // Simulate file deletion for item1
11226        item1.update(cx, |item, _| {
11227            item.set_has_deleted_file(true);
11228        });
11229
11230        // Emit UpdateTab event to trigger the close behavior
11231        item1.update(cx, |_, cx| {
11232            cx.emit(ItemEvent::UpdateTab);
11233        });
11234        cx.run_until_parked();
11235
11236        // Verify item1 was closed
11237        pane.read_with(cx, |pane, _| {
11238            assert_eq!(
11239                pane.items().count(),
11240                1,
11241                "Should have 1 item remaining after auto-close"
11242            );
11243        });
11244
11245        // Check navigation history after close
11246        let has_item = pane.read_with(cx, |pane, cx| {
11247            let mut has_item = false;
11248            pane.nav_history().for_each_entry(cx, |entry, _| {
11249                if entry.item.id() == item1_id {
11250                    has_item = true;
11251                }
11252            });
11253            has_item
11254        });
11255
11256        assert!(
11257            !has_item,
11258            "Navigation history should not contain closed item entries"
11259        );
11260    }
11261
11262    #[gpui::test]
11263    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11264        cx: &mut TestAppContext,
11265    ) {
11266        init_test(cx);
11267
11268        let fs = FakeFs::new(cx.background_executor.clone());
11269        let project = Project::test(fs, [], cx).await;
11270        let (workspace, cx) =
11271            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11272        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11273
11274        let dirty_regular_buffer = cx.new(|cx| {
11275            TestItem::new(cx)
11276                .with_dirty(true)
11277                .with_label("1.txt")
11278                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11279        });
11280        let dirty_regular_buffer_2 = cx.new(|cx| {
11281            TestItem::new(cx)
11282                .with_dirty(true)
11283                .with_label("2.txt")
11284                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11285        });
11286        let clear_regular_buffer = cx.new(|cx| {
11287            TestItem::new(cx)
11288                .with_label("3.txt")
11289                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11290        });
11291
11292        let dirty_multi_buffer = cx.new(|cx| {
11293            TestItem::new(cx)
11294                .with_dirty(true)
11295                .with_buffer_kind(ItemBufferKind::Multibuffer)
11296                .with_label("Fake Project Search")
11297                .with_project_items(&[
11298                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11299                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11300                    clear_regular_buffer.read(cx).project_items[0].clone(),
11301                ])
11302        });
11303        workspace.update_in(cx, |workspace, window, cx| {
11304            workspace.add_item(
11305                pane.clone(),
11306                Box::new(dirty_regular_buffer.clone()),
11307                None,
11308                false,
11309                false,
11310                window,
11311                cx,
11312            );
11313            workspace.add_item(
11314                pane.clone(),
11315                Box::new(dirty_regular_buffer_2.clone()),
11316                None,
11317                false,
11318                false,
11319                window,
11320                cx,
11321            );
11322            workspace.add_item(
11323                pane.clone(),
11324                Box::new(dirty_multi_buffer.clone()),
11325                None,
11326                false,
11327                false,
11328                window,
11329                cx,
11330            );
11331        });
11332
11333        pane.update_in(cx, |pane, window, cx| {
11334            pane.activate_item(2, true, true, window, cx);
11335            assert_eq!(
11336                pane.active_item().unwrap().item_id(),
11337                dirty_multi_buffer.item_id(),
11338                "Should select the multi buffer in the pane"
11339            );
11340        });
11341        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11342            pane.close_active_item(
11343                &CloseActiveItem {
11344                    save_intent: None,
11345                    close_pinned: false,
11346                },
11347                window,
11348                cx,
11349            )
11350        });
11351        cx.background_executor.run_until_parked();
11352        assert!(
11353            !cx.has_pending_prompt(),
11354            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11355        );
11356        close_multi_buffer_task
11357            .await
11358            .expect("Closing multi buffer failed");
11359        pane.update(cx, |pane, cx| {
11360            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11361            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11362            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11363            assert_eq!(
11364                pane.items()
11365                    .map(|item| item.item_id())
11366                    .sorted()
11367                    .collect::<Vec<_>>(),
11368                vec![
11369                    dirty_regular_buffer.item_id(),
11370                    dirty_regular_buffer_2.item_id(),
11371                ],
11372                "Should have no multi buffer left in the pane"
11373            );
11374            assert!(dirty_regular_buffer.read(cx).is_dirty);
11375            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11376        });
11377    }
11378
11379    #[gpui::test]
11380    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11381        init_test(cx);
11382        let fs = FakeFs::new(cx.executor());
11383        let project = Project::test(fs, [], cx).await;
11384        let (workspace, cx) =
11385            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11386
11387        // Add a new panel to the right dock, opening the dock and setting the
11388        // focus to the new panel.
11389        let panel = workspace.update_in(cx, |workspace, window, cx| {
11390            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11391            workspace.add_panel(panel.clone(), window, cx);
11392
11393            workspace
11394                .right_dock()
11395                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11396
11397            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11398
11399            panel
11400        });
11401
11402        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11403        // panel to the next valid position which, in this case, is the left
11404        // dock.
11405        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11406        workspace.update(cx, |workspace, cx| {
11407            assert!(workspace.left_dock().read(cx).is_open());
11408            assert_eq!(panel.read(cx).position, DockPosition::Left);
11409        });
11410
11411        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
11412        // panel to the next valid position which, in this case, is the bottom
11413        // dock.
11414        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11415        workspace.update(cx, |workspace, cx| {
11416            assert!(workspace.bottom_dock().read(cx).is_open());
11417            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
11418        });
11419
11420        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
11421        // around moving the panel to its initial position, the right dock.
11422        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11423        workspace.update(cx, |workspace, cx| {
11424            assert!(workspace.right_dock().read(cx).is_open());
11425            assert_eq!(panel.read(cx).position, DockPosition::Right);
11426        });
11427
11428        // Remove focus from the panel, ensuring that, if the panel is not
11429        // focused, the `MoveFocusedPanelToNextPosition` action does not update
11430        // the panel's position, so the panel is still in the right dock.
11431        workspace.update_in(cx, |workspace, window, cx| {
11432            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11433        });
11434
11435        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11436        workspace.update(cx, |workspace, cx| {
11437            assert!(workspace.right_dock().read(cx).is_open());
11438            assert_eq!(panel.read(cx).position, DockPosition::Right);
11439        });
11440    }
11441
11442    #[gpui::test]
11443    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
11444        init_test(cx);
11445
11446        let fs = FakeFs::new(cx.executor());
11447        let project = Project::test(fs, [], cx).await;
11448        let (workspace, cx) =
11449            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11450
11451        let item_1 = cx.new(|cx| {
11452            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11453        });
11454        workspace.update_in(cx, |workspace, window, cx| {
11455            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11456            workspace.move_item_to_pane_in_direction(
11457                &MoveItemToPaneInDirection {
11458                    direction: SplitDirection::Right,
11459                    focus: true,
11460                    clone: false,
11461                },
11462                window,
11463                cx,
11464            );
11465            workspace.move_item_to_pane_at_index(
11466                &MoveItemToPane {
11467                    destination: 3,
11468                    focus: true,
11469                    clone: false,
11470                },
11471                window,
11472                cx,
11473            );
11474
11475            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
11476            assert_eq!(
11477                pane_items_paths(&workspace.active_pane, cx),
11478                vec!["first.txt".to_string()],
11479                "Single item was not moved anywhere"
11480            );
11481        });
11482
11483        let item_2 = cx.new(|cx| {
11484            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
11485        });
11486        workspace.update_in(cx, |workspace, window, cx| {
11487            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
11488            assert_eq!(
11489                pane_items_paths(&workspace.panes[0], cx),
11490                vec!["first.txt".to_string(), "second.txt".to_string()],
11491            );
11492            workspace.move_item_to_pane_in_direction(
11493                &MoveItemToPaneInDirection {
11494                    direction: SplitDirection::Right,
11495                    focus: true,
11496                    clone: false,
11497                },
11498                window,
11499                cx,
11500            );
11501
11502            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
11503            assert_eq!(
11504                pane_items_paths(&workspace.panes[0], cx),
11505                vec!["first.txt".to_string()],
11506                "After moving, one item should be left in the original pane"
11507            );
11508            assert_eq!(
11509                pane_items_paths(&workspace.panes[1], cx),
11510                vec!["second.txt".to_string()],
11511                "New item should have been moved to the new pane"
11512            );
11513        });
11514
11515        let item_3 = cx.new(|cx| {
11516            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
11517        });
11518        workspace.update_in(cx, |workspace, window, cx| {
11519            let original_pane = workspace.panes[0].clone();
11520            workspace.set_active_pane(&original_pane, window, cx);
11521            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
11522            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
11523            assert_eq!(
11524                pane_items_paths(&workspace.active_pane, cx),
11525                vec!["first.txt".to_string(), "third.txt".to_string()],
11526                "New pane should be ready to move one item out"
11527            );
11528
11529            workspace.move_item_to_pane_at_index(
11530                &MoveItemToPane {
11531                    destination: 3,
11532                    focus: true,
11533                    clone: false,
11534                },
11535                window,
11536                cx,
11537            );
11538            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
11539            assert_eq!(
11540                pane_items_paths(&workspace.active_pane, cx),
11541                vec!["first.txt".to_string()],
11542                "After moving, one item should be left in the original pane"
11543            );
11544            assert_eq!(
11545                pane_items_paths(&workspace.panes[1], cx),
11546                vec!["second.txt".to_string()],
11547                "Previously created pane should be unchanged"
11548            );
11549            assert_eq!(
11550                pane_items_paths(&workspace.panes[2], cx),
11551                vec!["third.txt".to_string()],
11552                "New item should have been moved to the new pane"
11553            );
11554        });
11555    }
11556
11557    #[gpui::test]
11558    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
11559        init_test(cx);
11560
11561        let fs = FakeFs::new(cx.executor());
11562        let project = Project::test(fs, [], cx).await;
11563        let (workspace, cx) =
11564            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11565
11566        let item_1 = cx.new(|cx| {
11567            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
11568        });
11569        workspace.update_in(cx, |workspace, window, cx| {
11570            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
11571            workspace.move_item_to_pane_in_direction(
11572                &MoveItemToPaneInDirection {
11573                    direction: SplitDirection::Right,
11574                    focus: true,
11575                    clone: true,
11576                },
11577                window,
11578                cx,
11579            );
11580            workspace.move_item_to_pane_at_index(
11581                &MoveItemToPane {
11582                    destination: 3,
11583                    focus: true,
11584                    clone: true,
11585                },
11586                window,
11587                cx,
11588            );
11589        });
11590        cx.run_until_parked();
11591
11592        workspace.update(cx, |workspace, cx| {
11593            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
11594            for pane in workspace.panes() {
11595                assert_eq!(
11596                    pane_items_paths(pane, cx),
11597                    vec!["first.txt".to_string()],
11598                    "Single item exists in all panes"
11599                );
11600            }
11601        });
11602
11603        // verify that the active pane has been updated after waiting for the
11604        // pane focus event to fire and resolve
11605        workspace.read_with(cx, |workspace, _app| {
11606            assert_eq!(
11607                workspace.active_pane(),
11608                &workspace.panes[2],
11609                "The third pane should be the active one: {:?}",
11610                workspace.panes
11611            );
11612        })
11613    }
11614
11615    mod register_project_item_tests {
11616
11617        use super::*;
11618
11619        // View
11620        struct TestPngItemView {
11621            focus_handle: FocusHandle,
11622        }
11623        // Model
11624        struct TestPngItem {}
11625
11626        impl project::ProjectItem for TestPngItem {
11627            fn try_open(
11628                _project: &Entity<Project>,
11629                path: &ProjectPath,
11630                cx: &mut App,
11631            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11632                if path.path.extension().unwrap() == "png" {
11633                    Some(cx.spawn(async move |cx| cx.new(|_| TestPngItem {})))
11634                } else {
11635                    None
11636                }
11637            }
11638
11639            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11640                None
11641            }
11642
11643            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11644                None
11645            }
11646
11647            fn is_dirty(&self) -> bool {
11648                false
11649            }
11650        }
11651
11652        impl Item for TestPngItemView {
11653            type Event = ();
11654            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11655                "".into()
11656            }
11657        }
11658        impl EventEmitter<()> for TestPngItemView {}
11659        impl Focusable for TestPngItemView {
11660            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11661                self.focus_handle.clone()
11662            }
11663        }
11664
11665        impl Render for TestPngItemView {
11666            fn render(
11667                &mut self,
11668                _window: &mut Window,
11669                _cx: &mut Context<Self>,
11670            ) -> impl IntoElement {
11671                Empty
11672            }
11673        }
11674
11675        impl ProjectItem for TestPngItemView {
11676            type Item = TestPngItem;
11677
11678            fn for_project_item(
11679                _project: Entity<Project>,
11680                _pane: Option<&Pane>,
11681                _item: Entity<Self::Item>,
11682                _: &mut Window,
11683                cx: &mut Context<Self>,
11684            ) -> Self
11685            where
11686                Self: Sized,
11687            {
11688                Self {
11689                    focus_handle: cx.focus_handle(),
11690                }
11691            }
11692        }
11693
11694        // View
11695        struct TestIpynbItemView {
11696            focus_handle: FocusHandle,
11697        }
11698        // Model
11699        struct TestIpynbItem {}
11700
11701        impl project::ProjectItem for TestIpynbItem {
11702            fn try_open(
11703                _project: &Entity<Project>,
11704                path: &ProjectPath,
11705                cx: &mut App,
11706            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
11707                if path.path.extension().unwrap() == "ipynb" {
11708                    Some(cx.spawn(async move |cx| cx.new(|_| TestIpynbItem {})))
11709                } else {
11710                    None
11711                }
11712            }
11713
11714            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
11715                None
11716            }
11717
11718            fn project_path(&self, _: &App) -> Option<ProjectPath> {
11719                None
11720            }
11721
11722            fn is_dirty(&self) -> bool {
11723                false
11724            }
11725        }
11726
11727        impl Item for TestIpynbItemView {
11728            type Event = ();
11729            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11730                "".into()
11731            }
11732        }
11733        impl EventEmitter<()> for TestIpynbItemView {}
11734        impl Focusable for TestIpynbItemView {
11735            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11736                self.focus_handle.clone()
11737            }
11738        }
11739
11740        impl Render for TestIpynbItemView {
11741            fn render(
11742                &mut self,
11743                _window: &mut Window,
11744                _cx: &mut Context<Self>,
11745            ) -> impl IntoElement {
11746                Empty
11747            }
11748        }
11749
11750        impl ProjectItem for TestIpynbItemView {
11751            type Item = TestIpynbItem;
11752
11753            fn for_project_item(
11754                _project: Entity<Project>,
11755                _pane: Option<&Pane>,
11756                _item: Entity<Self::Item>,
11757                _: &mut Window,
11758                cx: &mut Context<Self>,
11759            ) -> Self
11760            where
11761                Self: Sized,
11762            {
11763                Self {
11764                    focus_handle: cx.focus_handle(),
11765                }
11766            }
11767        }
11768
11769        struct TestAlternatePngItemView {
11770            focus_handle: FocusHandle,
11771        }
11772
11773        impl Item for TestAlternatePngItemView {
11774            type Event = ();
11775            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
11776                "".into()
11777            }
11778        }
11779
11780        impl EventEmitter<()> for TestAlternatePngItemView {}
11781        impl Focusable for TestAlternatePngItemView {
11782            fn focus_handle(&self, _cx: &App) -> FocusHandle {
11783                self.focus_handle.clone()
11784            }
11785        }
11786
11787        impl Render for TestAlternatePngItemView {
11788            fn render(
11789                &mut self,
11790                _window: &mut Window,
11791                _cx: &mut Context<Self>,
11792            ) -> impl IntoElement {
11793                Empty
11794            }
11795        }
11796
11797        impl ProjectItem for TestAlternatePngItemView {
11798            type Item = TestPngItem;
11799
11800            fn for_project_item(
11801                _project: Entity<Project>,
11802                _pane: Option<&Pane>,
11803                _item: Entity<Self::Item>,
11804                _: &mut Window,
11805                cx: &mut Context<Self>,
11806            ) -> Self
11807            where
11808                Self: Sized,
11809            {
11810                Self {
11811                    focus_handle: cx.focus_handle(),
11812                }
11813            }
11814        }
11815
11816        #[gpui::test]
11817        async fn test_register_project_item(cx: &mut TestAppContext) {
11818            init_test(cx);
11819
11820            cx.update(|cx| {
11821                register_project_item::<TestPngItemView>(cx);
11822                register_project_item::<TestIpynbItemView>(cx);
11823            });
11824
11825            let fs = FakeFs::new(cx.executor());
11826            fs.insert_tree(
11827                "/root1",
11828                json!({
11829                    "one.png": "BINARYDATAHERE",
11830                    "two.ipynb": "{ totally a notebook }",
11831                    "three.txt": "editing text, sure why not?"
11832                }),
11833            )
11834            .await;
11835
11836            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11837            let (workspace, cx) =
11838                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11839
11840            let worktree_id = project.update(cx, |project, cx| {
11841                project.worktrees(cx).next().unwrap().read(cx).id()
11842            });
11843
11844            let handle = workspace
11845                .update_in(cx, |workspace, window, cx| {
11846                    let project_path = (worktree_id, rel_path("one.png"));
11847                    workspace.open_path(project_path, None, true, window, cx)
11848                })
11849                .await
11850                .unwrap();
11851
11852            // Now we can check if the handle we got back errored or not
11853            assert_eq!(
11854                handle.to_any_view().entity_type(),
11855                TypeId::of::<TestPngItemView>()
11856            );
11857
11858            let handle = workspace
11859                .update_in(cx, |workspace, window, cx| {
11860                    let project_path = (worktree_id, rel_path("two.ipynb"));
11861                    workspace.open_path(project_path, None, true, window, cx)
11862                })
11863                .await
11864                .unwrap();
11865
11866            assert_eq!(
11867                handle.to_any_view().entity_type(),
11868                TypeId::of::<TestIpynbItemView>()
11869            );
11870
11871            let handle = workspace
11872                .update_in(cx, |workspace, window, cx| {
11873                    let project_path = (worktree_id, rel_path("three.txt"));
11874                    workspace.open_path(project_path, None, true, window, cx)
11875                })
11876                .await;
11877            assert!(handle.is_err());
11878        }
11879
11880        #[gpui::test]
11881        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
11882            init_test(cx);
11883
11884            cx.update(|cx| {
11885                register_project_item::<TestPngItemView>(cx);
11886                register_project_item::<TestAlternatePngItemView>(cx);
11887            });
11888
11889            let fs = FakeFs::new(cx.executor());
11890            fs.insert_tree(
11891                "/root1",
11892                json!({
11893                    "one.png": "BINARYDATAHERE",
11894                    "two.ipynb": "{ totally a notebook }",
11895                    "three.txt": "editing text, sure why not?"
11896                }),
11897            )
11898            .await;
11899            let project = Project::test(fs, ["root1".as_ref()], cx).await;
11900            let (workspace, cx) =
11901                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11902            let worktree_id = project.update(cx, |project, cx| {
11903                project.worktrees(cx).next().unwrap().read(cx).id()
11904            });
11905
11906            let handle = workspace
11907                .update_in(cx, |workspace, window, cx| {
11908                    let project_path = (worktree_id, rel_path("one.png"));
11909                    workspace.open_path(project_path, None, true, window, cx)
11910                })
11911                .await
11912                .unwrap();
11913
11914            // This _must_ be the second item registered
11915            assert_eq!(
11916                handle.to_any_view().entity_type(),
11917                TypeId::of::<TestAlternatePngItemView>()
11918            );
11919
11920            let handle = workspace
11921                .update_in(cx, |workspace, window, cx| {
11922                    let project_path = (worktree_id, rel_path("three.txt"));
11923                    workspace.open_path(project_path, None, true, window, cx)
11924                })
11925                .await;
11926            assert!(handle.is_err());
11927        }
11928    }
11929
11930    #[gpui::test]
11931    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
11932        init_test(cx);
11933
11934        let fs = FakeFs::new(cx.executor());
11935        let project = Project::test(fs, [], cx).await;
11936        let (workspace, _cx) =
11937            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11938
11939        // Test with status bar shown (default)
11940        workspace.read_with(cx, |workspace, cx| {
11941            let visible = workspace.status_bar_visible(cx);
11942            assert!(visible, "Status bar should be visible by default");
11943        });
11944
11945        // Test with status bar hidden
11946        cx.update_global(|store: &mut SettingsStore, cx| {
11947            store.update_user_settings(cx, |settings| {
11948                settings.status_bar.get_or_insert_default().show = Some(false);
11949            });
11950        });
11951
11952        workspace.read_with(cx, |workspace, cx| {
11953            let visible = workspace.status_bar_visible(cx);
11954            assert!(!visible, "Status bar should be hidden when show is false");
11955        });
11956
11957        // Test with status bar shown explicitly
11958        cx.update_global(|store: &mut SettingsStore, cx| {
11959            store.update_user_settings(cx, |settings| {
11960                settings.status_bar.get_or_insert_default().show = Some(true);
11961            });
11962        });
11963
11964        workspace.read_with(cx, |workspace, cx| {
11965            let visible = workspace.status_bar_visible(cx);
11966            assert!(visible, "Status bar should be visible when show is true");
11967        });
11968    }
11969
11970    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
11971        pane.read(cx)
11972            .items()
11973            .flat_map(|item| {
11974                item.project_paths(cx)
11975                    .into_iter()
11976                    .map(|path| path.path.display(PathStyle::local()).into_owned())
11977            })
11978            .collect()
11979    }
11980
11981    pub fn init_test(cx: &mut TestAppContext) {
11982        cx.update(|cx| {
11983            let settings_store = SettingsStore::test(cx);
11984            cx.set_global(settings_store);
11985            theme::init(theme::LoadThemes::JustBase, cx);
11986        });
11987    }
11988
11989    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
11990        let item = TestProjectItem::new(id, path, cx);
11991        item.update(cx, |item, _| {
11992            item.is_dirty = true;
11993        });
11994        item
11995    }
11996}