workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6mod multi_workspace;
    7pub mod notifications;
    8pub mod pane;
    9pub mod pane_group;
   10pub mod path_list {
   11    pub use util::path_list::{PathList, SerializedPathList};
   12}
   13mod persistence;
   14pub mod searchable;
   15mod security_modal;
   16pub mod shared_screen;
   17use db::smol::future::yield_now;
   18pub use shared_screen::SharedScreen;
   19mod status_bar;
   20pub mod tasks;
   21mod theme_preview;
   22mod toast_layer;
   23mod toolbar;
   24pub mod welcome;
   25mod workspace_settings;
   26
   27pub use crate::notifications::NotificationFrame;
   28pub use dock::Panel;
   29pub use multi_workspace::{
   30    DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace, MultiWorkspaceEvent,
   31    NewWorkspaceInWindow, NextWorkspaceInWindow, PreviousWorkspaceInWindow,
   32    SIDEBAR_RESIZE_HANDLE_SIZE, ToggleWorkspaceSidebar, multi_workspace_enabled,
   33};
   34pub use path_list::{PathList, SerializedPathList};
   35pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   36
   37use anyhow::{Context as _, Result, anyhow};
   38use client::{
   39    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   40    proto::{self, ErrorCode, PanelId, PeerId},
   41};
   42use collections::{HashMap, HashSet, hash_map};
   43use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   44use fs::Fs;
   45use futures::{
   46    Future, FutureExt, StreamExt,
   47    channel::{
   48        mpsc::{self, UnboundedReceiver, UnboundedSender},
   49        oneshot,
   50    },
   51    future::{Shared, try_join_all},
   52};
   53use gpui::{
   54    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   55    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   56    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   57    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   58    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   59    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   60};
   61pub use history_manager::*;
   62pub use item::{
   63    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   64    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   65};
   66use itertools::Itertools;
   67use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   68pub use modal_layer::*;
   69use node_runtime::NodeRuntime;
   70use notifications::{
   71    DetachAndPromptErr, Notifications, dismiss_app_notification,
   72    simple_message_notification::MessageNotification,
   73};
   74pub use pane::*;
   75pub use pane_group::{
   76    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   77    SplitDirection,
   78};
   79use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   80pub use persistence::{
   81    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   82    model::{
   83        DockStructure, ItemId, MultiWorkspaceId, SerializedMultiWorkspace,
   84        SerializedWorkspaceLocation, SessionWorkspace,
   85    },
   86    read_serialized_multi_workspaces,
   87};
   88use postage::stream::Stream;
   89use project::{
   90    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   91    WorktreeSettings,
   92    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   93    project_settings::ProjectSettings,
   94    toolchain_store::ToolchainStoreEvent,
   95    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   96};
   97use remote::{
   98    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   99    remote_client::ConnectionIdentifier,
  100};
  101use schemars::JsonSchema;
  102use serde::Deserialize;
  103use session::AppSession;
  104use settings::{
  105    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  106};
  107
  108use sqlez::{
  109    bindable::{Bind, Column, StaticColumnCount},
  110    statement::Statement,
  111};
  112use status_bar::StatusBar;
  113pub use status_bar::StatusItemView;
  114use std::{
  115    any::TypeId,
  116    borrow::Cow,
  117    cell::RefCell,
  118    cmp,
  119    collections::VecDeque,
  120    env,
  121    hash::Hash,
  122    path::{Path, PathBuf},
  123    process::ExitStatus,
  124    rc::Rc,
  125    sync::{
  126        Arc, LazyLock, Weak,
  127        atomic::{AtomicBool, AtomicUsize},
  128    },
  129    time::Duration,
  130};
  131use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  132use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  133pub use toolbar::{
  134    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  135};
  136pub use ui;
  137use ui::{Window, prelude::*};
  138use util::{
  139    ResultExt, TryFutureExt,
  140    paths::{PathStyle, SanitizedPath},
  141    rel_path::RelPath,
  142    serde::default_true,
  143};
  144use uuid::Uuid;
  145pub use workspace_settings::{
  146    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  147    WorkspaceSettings,
  148};
  149use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  150
  151use crate::{item::ItemBufferKind, notifications::NotificationId};
  152use crate::{
  153    persistence::{
  154        SerializedAxis,
  155        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  156    },
  157    security_modal::SecurityModal,
  158};
  159
  160pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  161
  162static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  163    env::var("ZED_WINDOW_SIZE")
  164        .ok()
  165        .as_deref()
  166        .and_then(parse_pixel_size_env_var)
  167});
  168
  169static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  170    env::var("ZED_WINDOW_POSITION")
  171        .ok()
  172        .as_deref()
  173        .and_then(parse_pixel_position_env_var)
  174});
  175
  176pub trait TerminalProvider {
  177    fn spawn(
  178        &self,
  179        task: SpawnInTerminal,
  180        window: &mut Window,
  181        cx: &mut App,
  182    ) -> Task<Option<Result<ExitStatus>>>;
  183}
  184
  185pub trait DebuggerProvider {
  186    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  187    fn start_session(
  188        &self,
  189        definition: DebugScenario,
  190        task_context: SharedTaskContext,
  191        active_buffer: Option<Entity<Buffer>>,
  192        worktree_id: Option<WorktreeId>,
  193        window: &mut Window,
  194        cx: &mut App,
  195    );
  196
  197    fn spawn_task_or_modal(
  198        &self,
  199        workspace: &mut Workspace,
  200        action: &Spawn,
  201        window: &mut Window,
  202        cx: &mut Context<Workspace>,
  203    );
  204
  205    fn task_scheduled(&self, cx: &mut App);
  206    fn debug_scenario_scheduled(&self, cx: &mut App);
  207    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  208
  209    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  210}
  211
  212/// Opens a file or directory.
  213#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  214#[action(namespace = workspace)]
  215pub struct Open {
  216    /// When true, opens in a new window. When false, adds to the current
  217    /// window as a new workspace (multi-workspace).
  218    #[serde(default = "Open::default_create_new_window")]
  219    pub create_new_window: bool,
  220}
  221
  222impl Open {
  223    pub const DEFAULT: Self = Self {
  224        create_new_window: true,
  225    };
  226
  227    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  228    /// the serde default and `Open::DEFAULT` stay in sync.
  229    fn default_create_new_window() -> bool {
  230        Self::DEFAULT.create_new_window
  231    }
  232}
  233
  234impl Default for Open {
  235    fn default() -> Self {
  236        Self::DEFAULT
  237    }
  238}
  239
  240actions!(
  241    workspace,
  242    [
  243        /// Activates the next pane in the workspace.
  244        ActivateNextPane,
  245        /// Activates the previous pane in the workspace.
  246        ActivatePreviousPane,
  247        /// Activates the last pane in the workspace.
  248        ActivateLastPane,
  249        /// Switches to the next window.
  250        ActivateNextWindow,
  251        /// Switches to the previous window.
  252        ActivatePreviousWindow,
  253        /// Adds a folder to the current project.
  254        AddFolderToProject,
  255        /// Clears all notifications.
  256        ClearAllNotifications,
  257        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  258        ClearNavigationHistory,
  259        /// Closes the active dock.
  260        CloseActiveDock,
  261        /// Closes all docks.
  262        CloseAllDocks,
  263        /// Toggles all docks.
  264        ToggleAllDocks,
  265        /// Closes the current window.
  266        CloseWindow,
  267        /// Closes the current project.
  268        CloseProject,
  269        /// Opens the feedback dialog.
  270        Feedback,
  271        /// Follows the next collaborator in the session.
  272        FollowNextCollaborator,
  273        /// Moves the focused panel to the next position.
  274        MoveFocusedPanelToNextPosition,
  275        /// Creates a new file.
  276        NewFile,
  277        /// Creates a new file in a vertical split.
  278        NewFileSplitVertical,
  279        /// Creates a new file in a horizontal split.
  280        NewFileSplitHorizontal,
  281        /// Opens a new search.
  282        NewSearch,
  283        /// Opens a new window.
  284        NewWindow,
  285        /// Opens multiple files.
  286        OpenFiles,
  287        /// Opens the current location in terminal.
  288        OpenInTerminal,
  289        /// Opens the component preview.
  290        OpenComponentPreview,
  291        /// Reloads the active item.
  292        ReloadActiveItem,
  293        /// Resets the active dock to its default size.
  294        ResetActiveDockSize,
  295        /// Resets all open docks to their default sizes.
  296        ResetOpenDocksSize,
  297        /// Reloads the application
  298        Reload,
  299        /// Saves the current file with a new name.
  300        SaveAs,
  301        /// Saves without formatting.
  302        SaveWithoutFormat,
  303        /// Shuts down all debug adapters.
  304        ShutdownDebugAdapters,
  305        /// Suppresses the current notification.
  306        SuppressNotification,
  307        /// Toggles the bottom dock.
  308        ToggleBottomDock,
  309        /// Toggles centered layout mode.
  310        ToggleCenteredLayout,
  311        /// Toggles edit prediction feature globally for all files.
  312        ToggleEditPrediction,
  313        /// Toggles the left dock.
  314        ToggleLeftDock,
  315        /// Toggles the right dock.
  316        ToggleRightDock,
  317        /// Toggles zoom on the active pane.
  318        ToggleZoom,
  319        /// Toggles read-only mode for the active item (if supported by that item).
  320        ToggleReadOnlyFile,
  321        /// Zooms in on the active pane.
  322        ZoomIn,
  323        /// Zooms out of the active pane.
  324        ZoomOut,
  325        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  326        /// If the modal is shown already, closes it without trusting any worktree.
  327        ToggleWorktreeSecurity,
  328        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  329        /// Requires restart to take effect on already opened projects.
  330        ClearTrustedWorktrees,
  331        /// Stops following a collaborator.
  332        Unfollow,
  333        /// Restores the banner.
  334        RestoreBanner,
  335        /// Toggles expansion of the selected item.
  336        ToggleExpandItem,
  337    ]
  338);
  339
  340/// Activates a specific pane by its index.
  341#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  342#[action(namespace = workspace)]
  343pub struct ActivatePane(pub usize);
  344
  345/// Moves an item to a specific pane by index.
  346#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  347#[action(namespace = workspace)]
  348#[serde(deny_unknown_fields)]
  349pub struct MoveItemToPane {
  350    #[serde(default = "default_1")]
  351    pub destination: usize,
  352    #[serde(default = "default_true")]
  353    pub focus: bool,
  354    #[serde(default)]
  355    pub clone: bool,
  356}
  357
  358fn default_1() -> usize {
  359    1
  360}
  361
  362/// Moves an item to a pane in the specified direction.
  363#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  364#[action(namespace = workspace)]
  365#[serde(deny_unknown_fields)]
  366pub struct MoveItemToPaneInDirection {
  367    #[serde(default = "default_right")]
  368    pub direction: SplitDirection,
  369    #[serde(default = "default_true")]
  370    pub focus: bool,
  371    #[serde(default)]
  372    pub clone: bool,
  373}
  374
  375/// Creates a new file in a split of the desired direction.
  376#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct NewFileSplit(pub SplitDirection);
  380
  381fn default_right() -> SplitDirection {
  382    SplitDirection::Right
  383}
  384
  385/// Saves all open files in the workspace.
  386#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  387#[action(namespace = workspace)]
  388#[serde(deny_unknown_fields)]
  389pub struct SaveAll {
  390    #[serde(default)]
  391    pub save_intent: Option<SaveIntent>,
  392}
  393
  394/// Saves the current file with the specified options.
  395#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  396#[action(namespace = workspace)]
  397#[serde(deny_unknown_fields)]
  398pub struct Save {
  399    #[serde(default)]
  400    pub save_intent: Option<SaveIntent>,
  401}
  402
  403/// Closes all items and panes in the workspace.
  404#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  405#[action(namespace = workspace)]
  406#[serde(deny_unknown_fields)]
  407pub struct CloseAllItemsAndPanes {
  408    #[serde(default)]
  409    pub save_intent: Option<SaveIntent>,
  410}
  411
  412/// Closes all inactive tabs and panes in the workspace.
  413#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  414#[action(namespace = workspace)]
  415#[serde(deny_unknown_fields)]
  416pub struct CloseInactiveTabsAndPanes {
  417    #[serde(default)]
  418    pub save_intent: Option<SaveIntent>,
  419}
  420
  421/// Closes the active item across all panes.
  422#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  423#[action(namespace = workspace)]
  424#[serde(deny_unknown_fields)]
  425pub struct CloseItemInAllPanes {
  426    #[serde(default)]
  427    pub save_intent: Option<SaveIntent>,
  428    #[serde(default)]
  429    pub close_pinned: bool,
  430}
  431
  432/// Sends a sequence of keystrokes to the active element.
  433#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  434#[action(namespace = workspace)]
  435pub struct SendKeystrokes(pub String);
  436
  437actions!(
  438    project_symbols,
  439    [
  440        /// Toggles the project symbols search.
  441        #[action(name = "Toggle")]
  442        ToggleProjectSymbols
  443    ]
  444);
  445
  446/// Toggles the file finder interface.
  447#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  448#[action(namespace = file_finder, name = "Toggle")]
  449#[serde(deny_unknown_fields)]
  450pub struct ToggleFileFinder {
  451    #[serde(default)]
  452    pub separate_history: bool,
  453}
  454
  455/// Opens a new terminal in the center.
  456#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  457#[action(namespace = workspace)]
  458#[serde(deny_unknown_fields)]
  459pub struct NewCenterTerminal {
  460    /// If true, creates a local terminal even in remote projects.
  461    #[serde(default)]
  462    pub local: bool,
  463}
  464
  465/// Opens a new terminal.
  466#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  467#[action(namespace = workspace)]
  468#[serde(deny_unknown_fields)]
  469pub struct NewTerminal {
  470    /// If true, creates a local terminal even in remote projects.
  471    #[serde(default)]
  472    pub local: bool,
  473}
  474
  475/// Increases size of a currently focused dock by a given amount of pixels.
  476#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  477#[action(namespace = workspace)]
  478#[serde(deny_unknown_fields)]
  479pub struct IncreaseActiveDockSize {
  480    /// For 0px parameter, uses UI font size value.
  481    #[serde(default)]
  482    pub px: u32,
  483}
  484
  485/// Decreases size of a currently focused dock by a given amount of pixels.
  486#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  487#[action(namespace = workspace)]
  488#[serde(deny_unknown_fields)]
  489pub struct DecreaseActiveDockSize {
  490    /// For 0px parameter, uses UI font size value.
  491    #[serde(default)]
  492    pub px: u32,
  493}
  494
  495/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  496#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  497#[action(namespace = workspace)]
  498#[serde(deny_unknown_fields)]
  499pub struct IncreaseOpenDocksSize {
  500    /// For 0px parameter, uses UI font size value.
  501    #[serde(default)]
  502    pub px: u32,
  503}
  504
  505/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  506#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  507#[action(namespace = workspace)]
  508#[serde(deny_unknown_fields)]
  509pub struct DecreaseOpenDocksSize {
  510    /// For 0px parameter, uses UI font size value.
  511    #[serde(default)]
  512    pub px: u32,
  513}
  514
  515actions!(
  516    workspace,
  517    [
  518        /// Activates the pane to the left.
  519        ActivatePaneLeft,
  520        /// Activates the pane to the right.
  521        ActivatePaneRight,
  522        /// Activates the pane above.
  523        ActivatePaneUp,
  524        /// Activates the pane below.
  525        ActivatePaneDown,
  526        /// Swaps the current pane with the one to the left.
  527        SwapPaneLeft,
  528        /// Swaps the current pane with the one to the right.
  529        SwapPaneRight,
  530        /// Swaps the current pane with the one above.
  531        SwapPaneUp,
  532        /// Swaps the current pane with the one below.
  533        SwapPaneDown,
  534        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  535        SwapPaneAdjacent,
  536        /// Move the current pane to be at the far left.
  537        MovePaneLeft,
  538        /// Move the current pane to be at the far right.
  539        MovePaneRight,
  540        /// Move the current pane to be at the very top.
  541        MovePaneUp,
  542        /// Move the current pane to be at the very bottom.
  543        MovePaneDown,
  544    ]
  545);
  546
  547#[derive(PartialEq, Eq, Debug)]
  548pub enum CloseIntent {
  549    /// Quit the program entirely.
  550    Quit,
  551    /// Close a window.
  552    CloseWindow,
  553    /// Replace the workspace in an existing window.
  554    ReplaceWindow,
  555}
  556
  557#[derive(Clone)]
  558pub struct Toast {
  559    id: NotificationId,
  560    msg: Cow<'static, str>,
  561    autohide: bool,
  562    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  563}
  564
  565impl Toast {
  566    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  567        Toast {
  568            id,
  569            msg: msg.into(),
  570            on_click: None,
  571            autohide: false,
  572        }
  573    }
  574
  575    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  576    where
  577        M: Into<Cow<'static, str>>,
  578        F: Fn(&mut Window, &mut App) + 'static,
  579    {
  580        self.on_click = Some((message.into(), Arc::new(on_click)));
  581        self
  582    }
  583
  584    pub fn autohide(mut self) -> Self {
  585        self.autohide = true;
  586        self
  587    }
  588}
  589
  590impl PartialEq for Toast {
  591    fn eq(&self, other: &Self) -> bool {
  592        self.id == other.id
  593            && self.msg == other.msg
  594            && self.on_click.is_some() == other.on_click.is_some()
  595    }
  596}
  597
  598/// Opens a new terminal with the specified working directory.
  599#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  600#[action(namespace = workspace)]
  601#[serde(deny_unknown_fields)]
  602pub struct OpenTerminal {
  603    pub working_directory: PathBuf,
  604    /// If true, creates a local terminal even in remote projects.
  605    #[serde(default)]
  606    pub local: bool,
  607}
  608
  609#[derive(
  610    Clone,
  611    Copy,
  612    Debug,
  613    Default,
  614    Hash,
  615    PartialEq,
  616    Eq,
  617    PartialOrd,
  618    Ord,
  619    serde::Serialize,
  620    serde::Deserialize,
  621)]
  622pub struct WorkspaceId(i64);
  623
  624impl WorkspaceId {
  625    pub fn from_i64(value: i64) -> Self {
  626        Self(value)
  627    }
  628}
  629
  630impl StaticColumnCount for WorkspaceId {}
  631impl Bind for WorkspaceId {
  632    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  633        self.0.bind(statement, start_index)
  634    }
  635}
  636impl Column for WorkspaceId {
  637    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  638        i64::column(statement, start_index)
  639            .map(|(i, next_index)| (Self(i), next_index))
  640            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  641    }
  642}
  643impl From<WorkspaceId> for i64 {
  644    fn from(val: WorkspaceId) -> Self {
  645        val.0
  646    }
  647}
  648
  649fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  650    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  651        workspace_window
  652            .update(cx, |multi_workspace, window, cx| {
  653                let workspace = multi_workspace.workspace().clone();
  654                workspace.update(cx, |workspace, cx| {
  655                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  656                });
  657            })
  658            .ok();
  659    } else {
  660        let task = Workspace::new_local(Vec::new(), app_state.clone(), None, None, None, true, cx);
  661        cx.spawn(async move |cx| {
  662            let OpenResult { window, .. } = task.await?;
  663            window.update(cx, |multi_workspace, window, cx| {
  664                window.activate_window();
  665                let workspace = multi_workspace.workspace().clone();
  666                workspace.update(cx, |workspace, cx| {
  667                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  668                });
  669            })?;
  670            anyhow::Ok(())
  671        })
  672        .detach_and_log_err(cx);
  673    }
  674}
  675
  676pub fn prompt_for_open_path_and_open(
  677    workspace: &mut Workspace,
  678    app_state: Arc<AppState>,
  679    options: PathPromptOptions,
  680    create_new_window: bool,
  681    window: &mut Window,
  682    cx: &mut Context<Workspace>,
  683) {
  684    let paths = workspace.prompt_for_open_path(
  685        options,
  686        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  687        window,
  688        cx,
  689    );
  690    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  691    cx.spawn_in(window, async move |this, cx| {
  692        let Some(paths) = paths.await.log_err().flatten() else {
  693            return;
  694        };
  695        if !create_new_window {
  696            if let Some(handle) = multi_workspace_handle {
  697                if let Some(task) = handle
  698                    .update(cx, |multi_workspace, window, cx| {
  699                        multi_workspace.open_project(paths, window, cx)
  700                    })
  701                    .log_err()
  702                {
  703                    task.await.log_err();
  704                }
  705                return;
  706            }
  707        }
  708        if let Some(task) = this
  709            .update_in(cx, |this, window, cx| {
  710                this.open_workspace_for_paths(false, paths, window, cx)
  711            })
  712            .log_err()
  713        {
  714            task.await.log_err();
  715        }
  716    })
  717    .detach();
  718}
  719
  720pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  721    component::init();
  722    theme_preview::init(cx);
  723    toast_layer::init(cx);
  724    history_manager::init(app_state.fs.clone(), cx);
  725
  726    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  727        .on_action(|_: &Reload, cx| reload(cx))
  728        .on_action({
  729            let app_state = Arc::downgrade(&app_state);
  730            move |_: &Open, cx: &mut App| {
  731                if let Some(app_state) = app_state.upgrade() {
  732                    prompt_and_open_paths(
  733                        app_state,
  734                        PathPromptOptions {
  735                            files: true,
  736                            directories: true,
  737                            multiple: true,
  738                            prompt: None,
  739                        },
  740                        cx,
  741                    );
  742                }
  743            }
  744        })
  745        .on_action({
  746            let app_state = Arc::downgrade(&app_state);
  747            move |_: &OpenFiles, cx: &mut App| {
  748                let directories = cx.can_select_mixed_files_and_dirs();
  749                if let Some(app_state) = app_state.upgrade() {
  750                    prompt_and_open_paths(
  751                        app_state,
  752                        PathPromptOptions {
  753                            files: true,
  754                            directories,
  755                            multiple: true,
  756                            prompt: None,
  757                        },
  758                        cx,
  759                    );
  760                }
  761            }
  762        });
  763}
  764
  765type BuildProjectItemFn =
  766    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  767
  768type BuildProjectItemForPathFn =
  769    fn(
  770        &Entity<Project>,
  771        &ProjectPath,
  772        &mut Window,
  773        &mut App,
  774    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  775
  776#[derive(Clone, Default)]
  777struct ProjectItemRegistry {
  778    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  779    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  780}
  781
  782impl ProjectItemRegistry {
  783    fn register<T: ProjectItem>(&mut self) {
  784        self.build_project_item_fns_by_type.insert(
  785            TypeId::of::<T::Item>(),
  786            |item, project, pane, window, cx| {
  787                let item = item.downcast().unwrap();
  788                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  789                    as Box<dyn ItemHandle>
  790            },
  791        );
  792        self.build_project_item_for_path_fns
  793            .push(|project, project_path, window, cx| {
  794                let project_path = project_path.clone();
  795                let is_file = project
  796                    .read(cx)
  797                    .entry_for_path(&project_path, cx)
  798                    .is_some_and(|entry| entry.is_file());
  799                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  800                let is_local = project.read(cx).is_local();
  801                let project_item =
  802                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  803                let project = project.clone();
  804                Some(window.spawn(cx, async move |cx| {
  805                    match project_item.await.with_context(|| {
  806                        format!(
  807                            "opening project path {:?}",
  808                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  809                        )
  810                    }) {
  811                        Ok(project_item) => {
  812                            let project_item = project_item;
  813                            let project_entry_id: Option<ProjectEntryId> =
  814                                project_item.read_with(cx, project::ProjectItem::entry_id);
  815                            let build_workspace_item = Box::new(
  816                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  817                                    Box::new(cx.new(|cx| {
  818                                        T::for_project_item(
  819                                            project,
  820                                            Some(pane),
  821                                            project_item,
  822                                            window,
  823                                            cx,
  824                                        )
  825                                    })) as Box<dyn ItemHandle>
  826                                },
  827                            ) as Box<_>;
  828                            Ok((project_entry_id, build_workspace_item))
  829                        }
  830                        Err(e) => {
  831                            log::warn!("Failed to open a project item: {e:#}");
  832                            if e.error_code() == ErrorCode::Internal {
  833                                if let Some(abs_path) =
  834                                    entry_abs_path.as_deref().filter(|_| is_file)
  835                                {
  836                                    if let Some(broken_project_item_view) =
  837                                        cx.update(|window, cx| {
  838                                            T::for_broken_project_item(
  839                                                abs_path, is_local, &e, window, cx,
  840                                            )
  841                                        })?
  842                                    {
  843                                        let build_workspace_item = Box::new(
  844                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  845                                                cx.new(|_| broken_project_item_view).boxed_clone()
  846                                            },
  847                                        )
  848                                        as Box<_>;
  849                                        return Ok((None, build_workspace_item));
  850                                    }
  851                                }
  852                            }
  853                            Err(e)
  854                        }
  855                    }
  856                }))
  857            });
  858    }
  859
  860    fn open_path(
  861        &self,
  862        project: &Entity<Project>,
  863        path: &ProjectPath,
  864        window: &mut Window,
  865        cx: &mut App,
  866    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  867        let Some(open_project_item) = self
  868            .build_project_item_for_path_fns
  869            .iter()
  870            .rev()
  871            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  872        else {
  873            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  874        };
  875        open_project_item
  876    }
  877
  878    fn build_item<T: project::ProjectItem>(
  879        &self,
  880        item: Entity<T>,
  881        project: Entity<Project>,
  882        pane: Option<&Pane>,
  883        window: &mut Window,
  884        cx: &mut App,
  885    ) -> Option<Box<dyn ItemHandle>> {
  886        let build = self
  887            .build_project_item_fns_by_type
  888            .get(&TypeId::of::<T>())?;
  889        Some(build(item.into_any(), project, pane, window, cx))
  890    }
  891}
  892
  893type WorkspaceItemBuilder =
  894    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  895
  896impl Global for ProjectItemRegistry {}
  897
  898/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  899/// items will get a chance to open the file, starting from the project item that
  900/// was added last.
  901pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  902    cx.default_global::<ProjectItemRegistry>().register::<I>();
  903}
  904
  905#[derive(Default)]
  906pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  907
  908struct FollowableViewDescriptor {
  909    from_state_proto: fn(
  910        Entity<Workspace>,
  911        ViewId,
  912        &mut Option<proto::view::Variant>,
  913        &mut Window,
  914        &mut App,
  915    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  916    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  917}
  918
  919impl Global for FollowableViewRegistry {}
  920
  921impl FollowableViewRegistry {
  922    pub fn register<I: FollowableItem>(cx: &mut App) {
  923        cx.default_global::<Self>().0.insert(
  924            TypeId::of::<I>(),
  925            FollowableViewDescriptor {
  926                from_state_proto: |workspace, id, state, window, cx| {
  927                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  928                        cx.foreground_executor()
  929                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  930                    })
  931                },
  932                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  933            },
  934        );
  935    }
  936
  937    pub fn from_state_proto(
  938        workspace: Entity<Workspace>,
  939        view_id: ViewId,
  940        mut state: Option<proto::view::Variant>,
  941        window: &mut Window,
  942        cx: &mut App,
  943    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  944        cx.update_default_global(|this: &mut Self, cx| {
  945            this.0.values().find_map(|descriptor| {
  946                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  947            })
  948        })
  949    }
  950
  951    pub fn to_followable_view(
  952        view: impl Into<AnyView>,
  953        cx: &App,
  954    ) -> Option<Box<dyn FollowableItemHandle>> {
  955        let this = cx.try_global::<Self>()?;
  956        let view = view.into();
  957        let descriptor = this.0.get(&view.entity_type())?;
  958        Some((descriptor.to_followable_view)(&view))
  959    }
  960}
  961
  962#[derive(Copy, Clone)]
  963struct SerializableItemDescriptor {
  964    deserialize: fn(
  965        Entity<Project>,
  966        WeakEntity<Workspace>,
  967        WorkspaceId,
  968        ItemId,
  969        &mut Window,
  970        &mut Context<Pane>,
  971    ) -> Task<Result<Box<dyn ItemHandle>>>,
  972    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  973    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  974}
  975
  976#[derive(Default)]
  977struct SerializableItemRegistry {
  978    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  979    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  980}
  981
  982impl Global for SerializableItemRegistry {}
  983
  984impl SerializableItemRegistry {
  985    fn deserialize(
  986        item_kind: &str,
  987        project: Entity<Project>,
  988        workspace: WeakEntity<Workspace>,
  989        workspace_id: WorkspaceId,
  990        item_item: ItemId,
  991        window: &mut Window,
  992        cx: &mut Context<Pane>,
  993    ) -> Task<Result<Box<dyn ItemHandle>>> {
  994        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  995            return Task::ready(Err(anyhow!(
  996                "cannot deserialize {}, descriptor not found",
  997                item_kind
  998            )));
  999        };
 1000
 1001        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1002    }
 1003
 1004    fn cleanup(
 1005        item_kind: &str,
 1006        workspace_id: WorkspaceId,
 1007        loaded_items: Vec<ItemId>,
 1008        window: &mut Window,
 1009        cx: &mut App,
 1010    ) -> Task<Result<()>> {
 1011        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1012            return Task::ready(Err(anyhow!(
 1013                "cannot cleanup {}, descriptor not found",
 1014                item_kind
 1015            )));
 1016        };
 1017
 1018        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1019    }
 1020
 1021    fn view_to_serializable_item_handle(
 1022        view: AnyView,
 1023        cx: &App,
 1024    ) -> Option<Box<dyn SerializableItemHandle>> {
 1025        let this = cx.try_global::<Self>()?;
 1026        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1027        Some((descriptor.view_to_serializable_item)(view))
 1028    }
 1029
 1030    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1031        let this = cx.try_global::<Self>()?;
 1032        this.descriptors_by_kind.get(item_kind).copied()
 1033    }
 1034}
 1035
 1036pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1037    let serialized_item_kind = I::serialized_item_kind();
 1038
 1039    let registry = cx.default_global::<SerializableItemRegistry>();
 1040    let descriptor = SerializableItemDescriptor {
 1041        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1042            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1043            cx.foreground_executor()
 1044                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1045        },
 1046        cleanup: |workspace_id, loaded_items, window, cx| {
 1047            I::cleanup(workspace_id, loaded_items, window, cx)
 1048        },
 1049        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1050    };
 1051    registry
 1052        .descriptors_by_kind
 1053        .insert(Arc::from(serialized_item_kind), descriptor);
 1054    registry
 1055        .descriptors_by_type
 1056        .insert(TypeId::of::<I>(), descriptor);
 1057}
 1058
 1059pub struct AppState {
 1060    pub languages: Arc<LanguageRegistry>,
 1061    pub client: Arc<Client>,
 1062    pub user_store: Entity<UserStore>,
 1063    pub workspace_store: Entity<WorkspaceStore>,
 1064    pub fs: Arc<dyn fs::Fs>,
 1065    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1066    pub node_runtime: NodeRuntime,
 1067    pub session: Entity<AppSession>,
 1068}
 1069
 1070struct GlobalAppState(Weak<AppState>);
 1071
 1072impl Global for GlobalAppState {}
 1073
 1074pub struct WorkspaceStore {
 1075    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1076    client: Arc<Client>,
 1077    _subscriptions: Vec<client::Subscription>,
 1078}
 1079
 1080#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1081pub enum CollaboratorId {
 1082    PeerId(PeerId),
 1083    Agent,
 1084}
 1085
 1086impl From<PeerId> for CollaboratorId {
 1087    fn from(peer_id: PeerId) -> Self {
 1088        CollaboratorId::PeerId(peer_id)
 1089    }
 1090}
 1091
 1092impl From<&PeerId> for CollaboratorId {
 1093    fn from(peer_id: &PeerId) -> Self {
 1094        CollaboratorId::PeerId(*peer_id)
 1095    }
 1096}
 1097
 1098#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1099struct Follower {
 1100    project_id: Option<u64>,
 1101    peer_id: PeerId,
 1102}
 1103
 1104impl AppState {
 1105    #[track_caller]
 1106    pub fn global(cx: &App) -> Weak<Self> {
 1107        cx.global::<GlobalAppState>().0.clone()
 1108    }
 1109    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1110        cx.try_global::<GlobalAppState>()
 1111            .map(|state| state.0.clone())
 1112    }
 1113    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1114        cx.set_global(GlobalAppState(state));
 1115    }
 1116
 1117    #[cfg(any(test, feature = "test-support"))]
 1118    pub fn test(cx: &mut App) -> Arc<Self> {
 1119        use fs::Fs;
 1120        use node_runtime::NodeRuntime;
 1121        use session::Session;
 1122        use settings::SettingsStore;
 1123
 1124        if !cx.has_global::<SettingsStore>() {
 1125            let settings_store = SettingsStore::test(cx);
 1126            cx.set_global(settings_store);
 1127        }
 1128
 1129        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1130        <dyn Fs>::set_global(fs.clone(), cx);
 1131        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1132        let clock = Arc::new(clock::FakeSystemClock::new());
 1133        let http_client = http_client::FakeHttpClient::with_404_response();
 1134        let client = Client::new(clock, http_client, cx);
 1135        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1136        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1137        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1138
 1139        theme::init(theme::LoadThemes::JustBase, cx);
 1140        client::init(&client, cx);
 1141
 1142        Arc::new(Self {
 1143            client,
 1144            fs,
 1145            languages,
 1146            user_store,
 1147            workspace_store,
 1148            node_runtime: NodeRuntime::unavailable(),
 1149            build_window_options: |_, _| Default::default(),
 1150            session,
 1151        })
 1152    }
 1153}
 1154
 1155struct DelayedDebouncedEditAction {
 1156    task: Option<Task<()>>,
 1157    cancel_channel: Option<oneshot::Sender<()>>,
 1158}
 1159
 1160impl DelayedDebouncedEditAction {
 1161    fn new() -> DelayedDebouncedEditAction {
 1162        DelayedDebouncedEditAction {
 1163            task: None,
 1164            cancel_channel: None,
 1165        }
 1166    }
 1167
 1168    fn fire_new<F>(
 1169        &mut self,
 1170        delay: Duration,
 1171        window: &mut Window,
 1172        cx: &mut Context<Workspace>,
 1173        func: F,
 1174    ) where
 1175        F: 'static
 1176            + Send
 1177            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1178    {
 1179        if let Some(channel) = self.cancel_channel.take() {
 1180            _ = channel.send(());
 1181        }
 1182
 1183        let (sender, mut receiver) = oneshot::channel::<()>();
 1184        self.cancel_channel = Some(sender);
 1185
 1186        let previous_task = self.task.take();
 1187        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1188            let mut timer = cx.background_executor().timer(delay).fuse();
 1189            if let Some(previous_task) = previous_task {
 1190                previous_task.await;
 1191            }
 1192
 1193            futures::select_biased! {
 1194                _ = receiver => return,
 1195                    _ = timer => {}
 1196            }
 1197
 1198            if let Some(result) = workspace
 1199                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1200                .log_err()
 1201            {
 1202                result.await.log_err();
 1203            }
 1204        }));
 1205    }
 1206}
 1207
 1208pub enum Event {
 1209    PaneAdded(Entity<Pane>),
 1210    PaneRemoved,
 1211    ItemAdded {
 1212        item: Box<dyn ItemHandle>,
 1213    },
 1214    ActiveItemChanged,
 1215    ItemRemoved {
 1216        item_id: EntityId,
 1217    },
 1218    UserSavedItem {
 1219        pane: WeakEntity<Pane>,
 1220        item: Box<dyn WeakItemHandle>,
 1221        save_intent: SaveIntent,
 1222    },
 1223    ContactRequestedJoin(u64),
 1224    WorkspaceCreated(WeakEntity<Workspace>),
 1225    OpenBundledFile {
 1226        text: Cow<'static, str>,
 1227        title: &'static str,
 1228        language: &'static str,
 1229    },
 1230    ZoomChanged,
 1231    ModalOpened,
 1232    Activate,
 1233    PanelAdded(AnyView),
 1234}
 1235
 1236#[derive(Debug, Clone)]
 1237pub enum OpenVisible {
 1238    All,
 1239    None,
 1240    OnlyFiles,
 1241    OnlyDirectories,
 1242}
 1243
 1244enum WorkspaceLocation {
 1245    // Valid local paths or SSH project to serialize
 1246    Location(SerializedWorkspaceLocation, PathList),
 1247    // No valid location found hence clear session id
 1248    DetachFromSession,
 1249    // No valid location found to serialize
 1250    None,
 1251}
 1252
 1253type PromptForNewPath = Box<
 1254    dyn Fn(
 1255        &mut Workspace,
 1256        DirectoryLister,
 1257        Option<String>,
 1258        &mut Window,
 1259        &mut Context<Workspace>,
 1260    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1261>;
 1262
 1263type PromptForOpenPath = Box<
 1264    dyn Fn(
 1265        &mut Workspace,
 1266        DirectoryLister,
 1267        &mut Window,
 1268        &mut Context<Workspace>,
 1269    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1270>;
 1271
 1272#[derive(Default)]
 1273struct DispatchingKeystrokes {
 1274    dispatched: HashSet<Vec<Keystroke>>,
 1275    queue: VecDeque<Keystroke>,
 1276    task: Option<Shared<Task<()>>>,
 1277}
 1278
 1279/// Collects everything project-related for a certain window opened.
 1280/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1281///
 1282/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1283/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1284/// that can be used to register a global action to be triggered from any place in the window.
 1285pub struct Workspace {
 1286    weak_self: WeakEntity<Self>,
 1287    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1288    zoomed: Option<AnyWeakView>,
 1289    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1290    zoomed_position: Option<DockPosition>,
 1291    center: PaneGroup,
 1292    left_dock: Entity<Dock>,
 1293    bottom_dock: Entity<Dock>,
 1294    right_dock: Entity<Dock>,
 1295    panes: Vec<Entity<Pane>>,
 1296    active_worktree_override: Option<WorktreeId>,
 1297    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1298    active_pane: Entity<Pane>,
 1299    last_active_center_pane: Option<WeakEntity<Pane>>,
 1300    last_active_view_id: Option<proto::ViewId>,
 1301    status_bar: Entity<StatusBar>,
 1302    pub(crate) modal_layer: Entity<ModalLayer>,
 1303    toast_layer: Entity<ToastLayer>,
 1304    titlebar_item: Option<AnyView>,
 1305    notifications: Notifications,
 1306    suppressed_notifications: HashSet<NotificationId>,
 1307    project: Entity<Project>,
 1308    follower_states: HashMap<CollaboratorId, FollowerState>,
 1309    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1310    window_edited: bool,
 1311    last_window_title: Option<String>,
 1312    dirty_items: HashMap<EntityId, Subscription>,
 1313    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1314    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1315    database_id: Option<WorkspaceId>,
 1316    app_state: Arc<AppState>,
 1317    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1318    _subscriptions: Vec<Subscription>,
 1319    _apply_leader_updates: Task<Result<()>>,
 1320    _observe_current_user: Task<Result<()>>,
 1321    _schedule_serialize_workspace: Option<Task<()>>,
 1322    _serialize_workspace_task: Option<Task<()>>,
 1323    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1324    pane_history_timestamp: Arc<AtomicUsize>,
 1325    bounds: Bounds<Pixels>,
 1326    pub centered_layout: bool,
 1327    bounds_save_task_queued: Option<Task<()>>,
 1328    on_prompt_for_new_path: Option<PromptForNewPath>,
 1329    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1330    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1331    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1332    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1333    _items_serializer: Task<Result<()>>,
 1334    session_id: Option<String>,
 1335    scheduled_tasks: Vec<Task<()>>,
 1336    last_open_dock_positions: Vec<DockPosition>,
 1337    removing: bool,
 1338    _panels_task: Option<Task<Result<()>>>,
 1339}
 1340
 1341impl EventEmitter<Event> for Workspace {}
 1342
 1343#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1344pub struct ViewId {
 1345    pub creator: CollaboratorId,
 1346    pub id: u64,
 1347}
 1348
 1349pub struct FollowerState {
 1350    center_pane: Entity<Pane>,
 1351    dock_pane: Option<Entity<Pane>>,
 1352    active_view_id: Option<ViewId>,
 1353    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1354}
 1355
 1356struct FollowerView {
 1357    view: Box<dyn FollowableItemHandle>,
 1358    location: Option<proto::PanelId>,
 1359}
 1360
 1361impl Workspace {
 1362    pub fn new(
 1363        workspace_id: Option<WorkspaceId>,
 1364        project: Entity<Project>,
 1365        app_state: Arc<AppState>,
 1366        window: &mut Window,
 1367        cx: &mut Context<Self>,
 1368    ) -> Self {
 1369        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1370            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1371                if let TrustedWorktreesEvent::Trusted(..) = e {
 1372                    // Do not persist auto trusted worktrees
 1373                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1374                        worktrees_store.update(cx, |worktrees_store, cx| {
 1375                            worktrees_store.schedule_serialization(
 1376                                cx,
 1377                                |new_trusted_worktrees, cx| {
 1378                                    let timeout =
 1379                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1380                                    cx.background_spawn(async move {
 1381                                        timeout.await;
 1382                                        persistence::DB
 1383                                            .save_trusted_worktrees(new_trusted_worktrees)
 1384                                            .await
 1385                                            .log_err();
 1386                                    })
 1387                                },
 1388                            )
 1389                        });
 1390                    }
 1391                }
 1392            })
 1393            .detach();
 1394
 1395            cx.observe_global::<SettingsStore>(|_, cx| {
 1396                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1397                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1398                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1399                            trusted_worktrees.auto_trust_all(cx);
 1400                        })
 1401                    }
 1402                }
 1403            })
 1404            .detach();
 1405        }
 1406
 1407        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1408            match event {
 1409                project::Event::RemoteIdChanged(_) => {
 1410                    this.update_window_title(window, cx);
 1411                }
 1412
 1413                project::Event::CollaboratorLeft(peer_id) => {
 1414                    this.collaborator_left(*peer_id, window, cx);
 1415                }
 1416
 1417                &project::Event::WorktreeRemoved(id) | &project::Event::WorktreeAdded(id) => {
 1418                    this.update_window_title(window, cx);
 1419                    if this
 1420                        .project()
 1421                        .read(cx)
 1422                        .worktree_for_id(id, cx)
 1423                        .is_some_and(|wt| wt.read(cx).is_visible())
 1424                    {
 1425                        this.serialize_workspace(window, cx);
 1426                        this.update_history(cx);
 1427                    }
 1428                }
 1429                project::Event::WorktreeUpdatedEntries(..) => {
 1430                    this.update_window_title(window, cx);
 1431                    this.serialize_workspace(window, cx);
 1432                }
 1433
 1434                project::Event::DisconnectedFromHost => {
 1435                    this.update_window_edited(window, cx);
 1436                    let leaders_to_unfollow =
 1437                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1438                    for leader_id in leaders_to_unfollow {
 1439                        this.unfollow(leader_id, window, cx);
 1440                    }
 1441                }
 1442
 1443                project::Event::DisconnectedFromRemote {
 1444                    server_not_running: _,
 1445                } => {
 1446                    this.update_window_edited(window, cx);
 1447                }
 1448
 1449                project::Event::Closed => {
 1450                    window.remove_window();
 1451                }
 1452
 1453                project::Event::DeletedEntry(_, entry_id) => {
 1454                    for pane in this.panes.iter() {
 1455                        pane.update(cx, |pane, cx| {
 1456                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1457                        });
 1458                    }
 1459                }
 1460
 1461                project::Event::Toast {
 1462                    notification_id,
 1463                    message,
 1464                    link,
 1465                } => this.show_notification(
 1466                    NotificationId::named(notification_id.clone()),
 1467                    cx,
 1468                    |cx| {
 1469                        let mut notification = MessageNotification::new(message.clone(), cx);
 1470                        if let Some(link) = link {
 1471                            notification = notification
 1472                                .more_info_message(link.label)
 1473                                .more_info_url(link.url);
 1474                        }
 1475
 1476                        cx.new(|_| notification)
 1477                    },
 1478                ),
 1479
 1480                project::Event::HideToast { notification_id } => {
 1481                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1482                }
 1483
 1484                project::Event::LanguageServerPrompt(request) => {
 1485                    struct LanguageServerPrompt;
 1486
 1487                    this.show_notification(
 1488                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1489                        cx,
 1490                        |cx| {
 1491                            cx.new(|cx| {
 1492                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1493                            })
 1494                        },
 1495                    );
 1496                }
 1497
 1498                project::Event::AgentLocationChanged => {
 1499                    this.handle_agent_location_changed(window, cx)
 1500                }
 1501
 1502                _ => {}
 1503            }
 1504            cx.notify()
 1505        })
 1506        .detach();
 1507
 1508        cx.subscribe_in(
 1509            &project.read(cx).breakpoint_store(),
 1510            window,
 1511            |workspace, _, event, window, cx| match event {
 1512                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1513                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1514                    workspace.serialize_workspace(window, cx);
 1515                }
 1516                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1517            },
 1518        )
 1519        .detach();
 1520        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1521            cx.subscribe_in(
 1522                &toolchain_store,
 1523                window,
 1524                |workspace, _, event, window, cx| match event {
 1525                    ToolchainStoreEvent::CustomToolchainsModified => {
 1526                        workspace.serialize_workspace(window, cx);
 1527                    }
 1528                    _ => {}
 1529                },
 1530            )
 1531            .detach();
 1532        }
 1533
 1534        cx.on_focus_lost(window, |this, window, cx| {
 1535            let focus_handle = this.focus_handle(cx);
 1536            window.focus(&focus_handle, cx);
 1537        })
 1538        .detach();
 1539
 1540        let weak_handle = cx.entity().downgrade();
 1541        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1542
 1543        let center_pane = cx.new(|cx| {
 1544            let mut center_pane = Pane::new(
 1545                weak_handle.clone(),
 1546                project.clone(),
 1547                pane_history_timestamp.clone(),
 1548                None,
 1549                NewFile.boxed_clone(),
 1550                true,
 1551                window,
 1552                cx,
 1553            );
 1554            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1555            center_pane.set_should_display_welcome_page(true);
 1556            center_pane
 1557        });
 1558        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1559            .detach();
 1560
 1561        window.focus(&center_pane.focus_handle(cx), cx);
 1562
 1563        cx.emit(Event::PaneAdded(center_pane.clone()));
 1564
 1565        let any_window_handle = window.window_handle();
 1566        app_state.workspace_store.update(cx, |store, _| {
 1567            store
 1568                .workspaces
 1569                .insert((any_window_handle, weak_handle.clone()));
 1570        });
 1571
 1572        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1573        let mut connection_status = app_state.client.status();
 1574        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1575            current_user.next().await;
 1576            connection_status.next().await;
 1577            let mut stream =
 1578                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1579
 1580            while stream.recv().await.is_some() {
 1581                this.update(cx, |_, cx| cx.notify())?;
 1582            }
 1583            anyhow::Ok(())
 1584        });
 1585
 1586        // All leader updates are enqueued and then processed in a single task, so
 1587        // that each asynchronous operation can be run in order.
 1588        let (leader_updates_tx, mut leader_updates_rx) =
 1589            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1590        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1591            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1592                Self::process_leader_update(&this, leader_id, update, cx)
 1593                    .await
 1594                    .log_err();
 1595            }
 1596
 1597            Ok(())
 1598        });
 1599
 1600        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1601        let modal_layer = cx.new(|_| ModalLayer::new());
 1602        let toast_layer = cx.new(|_| ToastLayer::new());
 1603        cx.subscribe(
 1604            &modal_layer,
 1605            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1606                cx.emit(Event::ModalOpened);
 1607            },
 1608        )
 1609        .detach();
 1610
 1611        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1612        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1613        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1614        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1615        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1616        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1617        let status_bar = cx.new(|cx| {
 1618            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1619            status_bar.add_left_item(left_dock_buttons, window, cx);
 1620            status_bar.add_right_item(right_dock_buttons, window, cx);
 1621            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1622            status_bar
 1623        });
 1624
 1625        let session_id = app_state.session.read(cx).id().to_owned();
 1626
 1627        let mut active_call = None;
 1628        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1629            let subscriptions =
 1630                vec![
 1631                    call.0
 1632                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1633                ];
 1634            active_call = Some((call, subscriptions));
 1635        }
 1636
 1637        let (serializable_items_tx, serializable_items_rx) =
 1638            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1639        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1640            Self::serialize_items(&this, serializable_items_rx, cx).await
 1641        });
 1642
 1643        let subscriptions = vec![
 1644            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1645            cx.observe_window_bounds(window, move |this, window, cx| {
 1646                if this.bounds_save_task_queued.is_some() {
 1647                    return;
 1648                }
 1649                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1650                    cx.background_executor()
 1651                        .timer(Duration::from_millis(100))
 1652                        .await;
 1653                    this.update_in(cx, |this, window, cx| {
 1654                        this.save_window_bounds(window, cx).detach();
 1655                        this.bounds_save_task_queued.take();
 1656                    })
 1657                    .ok();
 1658                }));
 1659                cx.notify();
 1660            }),
 1661            cx.observe_window_appearance(window, |_, window, cx| {
 1662                let window_appearance = window.appearance();
 1663
 1664                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1665
 1666                GlobalTheme::reload_theme(cx);
 1667                GlobalTheme::reload_icon_theme(cx);
 1668            }),
 1669            cx.on_release({
 1670                let weak_handle = weak_handle.clone();
 1671                move |this, cx| {
 1672                    this.app_state.workspace_store.update(cx, move |store, _| {
 1673                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1674                    })
 1675                }
 1676            }),
 1677        ];
 1678
 1679        cx.defer_in(window, move |this, window, cx| {
 1680            this.update_window_title(window, cx);
 1681            this.show_initial_notifications(cx);
 1682        });
 1683
 1684        let mut center = PaneGroup::new(center_pane.clone());
 1685        center.set_is_center(true);
 1686        center.mark_positions(cx);
 1687
 1688        Workspace {
 1689            weak_self: weak_handle.clone(),
 1690            zoomed: None,
 1691            zoomed_position: None,
 1692            previous_dock_drag_coordinates: None,
 1693            center,
 1694            panes: vec![center_pane.clone()],
 1695            panes_by_item: Default::default(),
 1696            active_pane: center_pane.clone(),
 1697            last_active_center_pane: Some(center_pane.downgrade()),
 1698            last_active_view_id: None,
 1699            status_bar,
 1700            modal_layer,
 1701            toast_layer,
 1702            titlebar_item: None,
 1703            active_worktree_override: None,
 1704            notifications: Notifications::default(),
 1705            suppressed_notifications: HashSet::default(),
 1706            left_dock,
 1707            bottom_dock,
 1708            right_dock,
 1709            _panels_task: None,
 1710            project: project.clone(),
 1711            follower_states: Default::default(),
 1712            last_leaders_by_pane: Default::default(),
 1713            dispatching_keystrokes: Default::default(),
 1714            window_edited: false,
 1715            last_window_title: None,
 1716            dirty_items: Default::default(),
 1717            active_call,
 1718            database_id: workspace_id,
 1719            app_state,
 1720            _observe_current_user,
 1721            _apply_leader_updates,
 1722            _schedule_serialize_workspace: None,
 1723            _serialize_workspace_task: None,
 1724            _schedule_serialize_ssh_paths: None,
 1725            leader_updates_tx,
 1726            _subscriptions: subscriptions,
 1727            pane_history_timestamp,
 1728            workspace_actions: Default::default(),
 1729            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1730            bounds: Default::default(),
 1731            centered_layout: false,
 1732            bounds_save_task_queued: None,
 1733            on_prompt_for_new_path: None,
 1734            on_prompt_for_open_path: None,
 1735            terminal_provider: None,
 1736            debugger_provider: None,
 1737            serializable_items_tx,
 1738            _items_serializer,
 1739            session_id: Some(session_id),
 1740
 1741            scheduled_tasks: Vec::new(),
 1742            last_open_dock_positions: Vec::new(),
 1743            removing: false,
 1744        }
 1745    }
 1746
 1747    pub fn new_local(
 1748        abs_paths: Vec<PathBuf>,
 1749        app_state: Arc<AppState>,
 1750        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1751        env: Option<HashMap<String, String>>,
 1752        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1753        activate: bool,
 1754        cx: &mut App,
 1755    ) -> Task<anyhow::Result<OpenResult>> {
 1756        let project_handle = Project::local(
 1757            app_state.client.clone(),
 1758            app_state.node_runtime.clone(),
 1759            app_state.user_store.clone(),
 1760            app_state.languages.clone(),
 1761            app_state.fs.clone(),
 1762            env,
 1763            Default::default(),
 1764            cx,
 1765        );
 1766
 1767        cx.spawn(async move |cx| {
 1768            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1769            for path in abs_paths.into_iter() {
 1770                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1771                    paths_to_open.push(canonical)
 1772                } else {
 1773                    paths_to_open.push(path)
 1774                }
 1775            }
 1776
 1777            let serialized_workspace =
 1778                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1779
 1780            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1781                paths_to_open = paths.ordered_paths().cloned().collect();
 1782                if !paths.is_lexicographically_ordered() {
 1783                    project_handle.update(cx, |project, cx| {
 1784                        project.set_worktrees_reordered(true, cx);
 1785                    });
 1786                }
 1787            }
 1788
 1789            // Get project paths for all of the abs_paths
 1790            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1791                Vec::with_capacity(paths_to_open.len());
 1792
 1793            for path in paths_to_open.into_iter() {
 1794                if let Some((_, project_entry)) = cx
 1795                    .update(|cx| {
 1796                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1797                    })
 1798                    .await
 1799                    .log_err()
 1800                {
 1801                    project_paths.push((path, Some(project_entry)));
 1802                } else {
 1803                    project_paths.push((path, None));
 1804                }
 1805            }
 1806
 1807            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1808                serialized_workspace.id
 1809            } else {
 1810                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1811            };
 1812
 1813            let toolchains = DB.toolchains(workspace_id).await?;
 1814
 1815            for (toolchain, worktree_path, path) in toolchains {
 1816                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1817                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1818                    this.find_worktree(&worktree_path, cx)
 1819                        .and_then(|(worktree, rel_path)| {
 1820                            if rel_path.is_empty() {
 1821                                Some(worktree.read(cx).id())
 1822                            } else {
 1823                                None
 1824                            }
 1825                        })
 1826                }) else {
 1827                    // We did not find a worktree with a given path, but that's whatever.
 1828                    continue;
 1829                };
 1830                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1831                    continue;
 1832                }
 1833
 1834                project_handle
 1835                    .update(cx, |this, cx| {
 1836                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1837                    })
 1838                    .await;
 1839            }
 1840            if let Some(workspace) = serialized_workspace.as_ref() {
 1841                project_handle.update(cx, |this, cx| {
 1842                    for (scope, toolchains) in &workspace.user_toolchains {
 1843                        for toolchain in toolchains {
 1844                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1845                        }
 1846                    }
 1847                });
 1848            }
 1849
 1850            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1851                if let Some(window) = requesting_window {
 1852                    let centered_layout = serialized_workspace
 1853                        .as_ref()
 1854                        .map(|w| w.centered_layout)
 1855                        .unwrap_or(false);
 1856
 1857                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1858                        let workspace = cx.new(|cx| {
 1859                            let mut workspace = Workspace::new(
 1860                                Some(workspace_id),
 1861                                project_handle.clone(),
 1862                                app_state.clone(),
 1863                                window,
 1864                                cx,
 1865                            );
 1866
 1867                            workspace.centered_layout = centered_layout;
 1868
 1869                            // Call init callback to add items before window renders
 1870                            if let Some(init) = init {
 1871                                init(&mut workspace, window, cx);
 1872                            }
 1873
 1874                            workspace
 1875                        });
 1876                        if activate {
 1877                            multi_workspace.activate(workspace.clone(), cx);
 1878                        } else {
 1879                            multi_workspace.add_workspace(workspace.clone(), cx);
 1880                        }
 1881                        workspace
 1882                    })?;
 1883                    (window, workspace)
 1884                } else {
 1885                    let window_bounds_override = window_bounds_env_override();
 1886
 1887                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1888                        (Some(WindowBounds::Windowed(bounds)), None)
 1889                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1890                        && let Some(display) = workspace.display
 1891                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1892                    {
 1893                        // Reopening an existing workspace - restore its saved bounds
 1894                        (Some(bounds.0), Some(display))
 1895                    } else if let Some((display, bounds)) =
 1896                        persistence::read_default_window_bounds()
 1897                    {
 1898                        // New or empty workspace - use the last known window bounds
 1899                        (Some(bounds), Some(display))
 1900                    } else {
 1901                        // New window - let GPUI's default_bounds() handle cascading
 1902                        (None, None)
 1903                    };
 1904
 1905                    // Use the serialized workspace to construct the new window
 1906                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1907                    options.window_bounds = window_bounds;
 1908                    let centered_layout = serialized_workspace
 1909                        .as_ref()
 1910                        .map(|w| w.centered_layout)
 1911                        .unwrap_or(false);
 1912                    let window = cx.open_window(options, {
 1913                        let app_state = app_state.clone();
 1914                        let project_handle = project_handle.clone();
 1915                        move |window, cx| {
 1916                            let workspace = cx.new(|cx| {
 1917                                let mut workspace = Workspace::new(
 1918                                    Some(workspace_id),
 1919                                    project_handle,
 1920                                    app_state,
 1921                                    window,
 1922                                    cx,
 1923                                );
 1924                                workspace.centered_layout = centered_layout;
 1925
 1926                                // Call init callback to add items before window renders
 1927                                if let Some(init) = init {
 1928                                    init(&mut workspace, window, cx);
 1929                                }
 1930
 1931                                workspace
 1932                            });
 1933                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 1934                        }
 1935                    })?;
 1936                    let workspace =
 1937                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1938                            multi_workspace.workspace().clone()
 1939                        })?;
 1940                    (window, workspace)
 1941                };
 1942
 1943            notify_if_database_failed(window, cx);
 1944            // Check if this is an empty workspace (no paths to open)
 1945            // An empty workspace is one where project_paths is empty
 1946            let is_empty_workspace = project_paths.is_empty();
 1947            // Check if serialized workspace has paths before it's moved
 1948            let serialized_workspace_has_paths = serialized_workspace
 1949                .as_ref()
 1950                .map(|ws| !ws.paths.is_empty())
 1951                .unwrap_or(false);
 1952
 1953            let opened_items = window
 1954                .update(cx, |_, window, cx| {
 1955                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1956                        open_items(serialized_workspace, project_paths, window, cx)
 1957                    })
 1958                })?
 1959                .await
 1960                .unwrap_or_default();
 1961
 1962            // Restore default dock state for empty workspaces
 1963            // Only restore if:
 1964            // 1. This is an empty workspace (no paths), AND
 1965            // 2. The serialized workspace either doesn't exist or has no paths
 1966            if is_empty_workspace && !serialized_workspace_has_paths {
 1967                if let Some(default_docks) = persistence::read_default_dock_state() {
 1968                    window
 1969                        .update(cx, |_, window, cx| {
 1970                            workspace.update(cx, |workspace, cx| {
 1971                                for (dock, serialized_dock) in [
 1972                                    (&workspace.right_dock, &default_docks.right),
 1973                                    (&workspace.left_dock, &default_docks.left),
 1974                                    (&workspace.bottom_dock, &default_docks.bottom),
 1975                                ] {
 1976                                    dock.update(cx, |dock, cx| {
 1977                                        dock.serialized_dock = Some(serialized_dock.clone());
 1978                                        dock.restore_state(window, cx);
 1979                                    });
 1980                                }
 1981                                cx.notify();
 1982                            });
 1983                        })
 1984                        .log_err();
 1985                }
 1986            }
 1987
 1988            window
 1989                .update(cx, |_, _window, cx| {
 1990                    workspace.update(cx, |this: &mut Workspace, cx| {
 1991                        this.update_history(cx);
 1992                    });
 1993                })
 1994                .log_err();
 1995            Ok(OpenResult {
 1996                window,
 1997                workspace,
 1998                opened_items,
 1999            })
 2000        })
 2001    }
 2002
 2003    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2004        self.weak_self.clone()
 2005    }
 2006
 2007    pub fn left_dock(&self) -> &Entity<Dock> {
 2008        &self.left_dock
 2009    }
 2010
 2011    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2012        &self.bottom_dock
 2013    }
 2014
 2015    pub fn set_bottom_dock_layout(
 2016        &mut self,
 2017        layout: BottomDockLayout,
 2018        window: &mut Window,
 2019        cx: &mut Context<Self>,
 2020    ) {
 2021        let fs = self.project().read(cx).fs();
 2022        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2023            content.workspace.bottom_dock_layout = Some(layout);
 2024        });
 2025
 2026        cx.notify();
 2027        self.serialize_workspace(window, cx);
 2028    }
 2029
 2030    pub fn right_dock(&self) -> &Entity<Dock> {
 2031        &self.right_dock
 2032    }
 2033
 2034    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2035        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2036    }
 2037
 2038    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2039        let left_dock = self.left_dock.read(cx);
 2040        let left_visible = left_dock.is_open();
 2041        let left_active_panel = left_dock
 2042            .active_panel()
 2043            .map(|panel| panel.persistent_name().to_string());
 2044        // `zoomed_position` is kept in sync with individual panel zoom state
 2045        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2046        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2047
 2048        let right_dock = self.right_dock.read(cx);
 2049        let right_visible = right_dock.is_open();
 2050        let right_active_panel = right_dock
 2051            .active_panel()
 2052            .map(|panel| panel.persistent_name().to_string());
 2053        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2054
 2055        let bottom_dock = self.bottom_dock.read(cx);
 2056        let bottom_visible = bottom_dock.is_open();
 2057        let bottom_active_panel = bottom_dock
 2058            .active_panel()
 2059            .map(|panel| panel.persistent_name().to_string());
 2060        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2061
 2062        DockStructure {
 2063            left: DockData {
 2064                visible: left_visible,
 2065                active_panel: left_active_panel,
 2066                zoom: left_dock_zoom,
 2067            },
 2068            right: DockData {
 2069                visible: right_visible,
 2070                active_panel: right_active_panel,
 2071                zoom: right_dock_zoom,
 2072            },
 2073            bottom: DockData {
 2074                visible: bottom_visible,
 2075                active_panel: bottom_active_panel,
 2076                zoom: bottom_dock_zoom,
 2077            },
 2078        }
 2079    }
 2080
 2081    pub fn set_dock_structure(
 2082        &self,
 2083        docks: DockStructure,
 2084        window: &mut Window,
 2085        cx: &mut Context<Self>,
 2086    ) {
 2087        for (dock, data) in [
 2088            (&self.left_dock, docks.left),
 2089            (&self.bottom_dock, docks.bottom),
 2090            (&self.right_dock, docks.right),
 2091        ] {
 2092            dock.update(cx, |dock, cx| {
 2093                dock.serialized_dock = Some(data);
 2094                dock.restore_state(window, cx);
 2095            });
 2096        }
 2097    }
 2098
 2099    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2100        self.items(cx)
 2101            .filter_map(|item| {
 2102                let project_path = item.project_path(cx)?;
 2103                self.project.read(cx).absolute_path(&project_path, cx)
 2104            })
 2105            .collect()
 2106    }
 2107
 2108    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2109        match position {
 2110            DockPosition::Left => &self.left_dock,
 2111            DockPosition::Bottom => &self.bottom_dock,
 2112            DockPosition::Right => &self.right_dock,
 2113        }
 2114    }
 2115
 2116    pub fn is_edited(&self) -> bool {
 2117        self.window_edited
 2118    }
 2119
 2120    pub fn add_panel<T: Panel>(
 2121        &mut self,
 2122        panel: Entity<T>,
 2123        window: &mut Window,
 2124        cx: &mut Context<Self>,
 2125    ) {
 2126        let focus_handle = panel.panel_focus_handle(cx);
 2127        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2128            .detach();
 2129
 2130        let dock_position = panel.position(window, cx);
 2131        let dock = self.dock_at_position(dock_position);
 2132        let any_panel = panel.to_any();
 2133
 2134        dock.update(cx, |dock, cx| {
 2135            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 2136        });
 2137
 2138        cx.emit(Event::PanelAdded(any_panel));
 2139    }
 2140
 2141    pub fn remove_panel<T: Panel>(
 2142        &mut self,
 2143        panel: &Entity<T>,
 2144        window: &mut Window,
 2145        cx: &mut Context<Self>,
 2146    ) {
 2147        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2148            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2149        }
 2150    }
 2151
 2152    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2153        &self.status_bar
 2154    }
 2155
 2156    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2157        StatusBarSettings::get_global(cx).show
 2158    }
 2159
 2160    pub fn app_state(&self) -> &Arc<AppState> {
 2161        &self.app_state
 2162    }
 2163
 2164    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2165        self._panels_task = Some(task);
 2166    }
 2167
 2168    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2169        self._panels_task.take()
 2170    }
 2171
 2172    pub fn user_store(&self) -> &Entity<UserStore> {
 2173        &self.app_state.user_store
 2174    }
 2175
 2176    pub fn project(&self) -> &Entity<Project> {
 2177        &self.project
 2178    }
 2179
 2180    pub fn path_style(&self, cx: &App) -> PathStyle {
 2181        self.project.read(cx).path_style(cx)
 2182    }
 2183
 2184    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2185        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2186
 2187        for pane_handle in &self.panes {
 2188            let pane = pane_handle.read(cx);
 2189
 2190            for entry in pane.activation_history() {
 2191                history.insert(
 2192                    entry.entity_id,
 2193                    history
 2194                        .get(&entry.entity_id)
 2195                        .cloned()
 2196                        .unwrap_or(0)
 2197                        .max(entry.timestamp),
 2198                );
 2199            }
 2200        }
 2201
 2202        history
 2203    }
 2204
 2205    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2206        let mut recent_item: Option<Entity<T>> = None;
 2207        let mut recent_timestamp = 0;
 2208        for pane_handle in &self.panes {
 2209            let pane = pane_handle.read(cx);
 2210            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2211                pane.items().map(|item| (item.item_id(), item)).collect();
 2212            for entry in pane.activation_history() {
 2213                if entry.timestamp > recent_timestamp
 2214                    && let Some(&item) = item_map.get(&entry.entity_id)
 2215                    && let Some(typed_item) = item.act_as::<T>(cx)
 2216                {
 2217                    recent_timestamp = entry.timestamp;
 2218                    recent_item = Some(typed_item);
 2219                }
 2220            }
 2221        }
 2222        recent_item
 2223    }
 2224
 2225    pub fn recent_navigation_history_iter(
 2226        &self,
 2227        cx: &App,
 2228    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2229        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2230        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2231
 2232        for pane in &self.panes {
 2233            let pane = pane.read(cx);
 2234
 2235            pane.nav_history()
 2236                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2237                    if let Some(fs_path) = &fs_path {
 2238                        abs_paths_opened
 2239                            .entry(fs_path.clone())
 2240                            .or_default()
 2241                            .insert(project_path.clone());
 2242                    }
 2243                    let timestamp = entry.timestamp;
 2244                    match history.entry(project_path) {
 2245                        hash_map::Entry::Occupied(mut entry) => {
 2246                            let (_, old_timestamp) = entry.get();
 2247                            if &timestamp > old_timestamp {
 2248                                entry.insert((fs_path, timestamp));
 2249                            }
 2250                        }
 2251                        hash_map::Entry::Vacant(entry) => {
 2252                            entry.insert((fs_path, timestamp));
 2253                        }
 2254                    }
 2255                });
 2256
 2257            if let Some(item) = pane.active_item()
 2258                && let Some(project_path) = item.project_path(cx)
 2259            {
 2260                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2261
 2262                if let Some(fs_path) = &fs_path {
 2263                    abs_paths_opened
 2264                        .entry(fs_path.clone())
 2265                        .or_default()
 2266                        .insert(project_path.clone());
 2267                }
 2268
 2269                history.insert(project_path, (fs_path, std::usize::MAX));
 2270            }
 2271        }
 2272
 2273        history
 2274            .into_iter()
 2275            .sorted_by_key(|(_, (_, order))| *order)
 2276            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2277            .rev()
 2278            .filter(move |(history_path, abs_path)| {
 2279                let latest_project_path_opened = abs_path
 2280                    .as_ref()
 2281                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2282                    .and_then(|project_paths| {
 2283                        project_paths
 2284                            .iter()
 2285                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2286                    });
 2287
 2288                latest_project_path_opened.is_none_or(|path| path == history_path)
 2289            })
 2290    }
 2291
 2292    pub fn recent_navigation_history(
 2293        &self,
 2294        limit: Option<usize>,
 2295        cx: &App,
 2296    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2297        self.recent_navigation_history_iter(cx)
 2298            .take(limit.unwrap_or(usize::MAX))
 2299            .collect()
 2300    }
 2301
 2302    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2303        for pane in &self.panes {
 2304            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2305        }
 2306    }
 2307
 2308    fn navigate_history(
 2309        &mut self,
 2310        pane: WeakEntity<Pane>,
 2311        mode: NavigationMode,
 2312        window: &mut Window,
 2313        cx: &mut Context<Workspace>,
 2314    ) -> Task<Result<()>> {
 2315        self.navigate_history_impl(
 2316            pane,
 2317            mode,
 2318            window,
 2319            &mut |history, cx| history.pop(mode, cx),
 2320            cx,
 2321        )
 2322    }
 2323
 2324    fn navigate_tag_history(
 2325        &mut self,
 2326        pane: WeakEntity<Pane>,
 2327        mode: TagNavigationMode,
 2328        window: &mut Window,
 2329        cx: &mut Context<Workspace>,
 2330    ) -> Task<Result<()>> {
 2331        self.navigate_history_impl(
 2332            pane,
 2333            NavigationMode::Normal,
 2334            window,
 2335            &mut |history, _cx| history.pop_tag(mode),
 2336            cx,
 2337        )
 2338    }
 2339
 2340    fn navigate_history_impl(
 2341        &mut self,
 2342        pane: WeakEntity<Pane>,
 2343        mode: NavigationMode,
 2344        window: &mut Window,
 2345        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2346        cx: &mut Context<Workspace>,
 2347    ) -> Task<Result<()>> {
 2348        let to_load = if let Some(pane) = pane.upgrade() {
 2349            pane.update(cx, |pane, cx| {
 2350                window.focus(&pane.focus_handle(cx), cx);
 2351                loop {
 2352                    // Retrieve the weak item handle from the history.
 2353                    let entry = cb(pane.nav_history_mut(), cx)?;
 2354
 2355                    // If the item is still present in this pane, then activate it.
 2356                    if let Some(index) = entry
 2357                        .item
 2358                        .upgrade()
 2359                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2360                    {
 2361                        let prev_active_item_index = pane.active_item_index();
 2362                        pane.nav_history_mut().set_mode(mode);
 2363                        pane.activate_item(index, true, true, window, cx);
 2364                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2365
 2366                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2367                        if let Some(data) = entry.data {
 2368                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2369                        }
 2370
 2371                        if navigated {
 2372                            break None;
 2373                        }
 2374                    } else {
 2375                        // If the item is no longer present in this pane, then retrieve its
 2376                        // path info in order to reopen it.
 2377                        break pane
 2378                            .nav_history()
 2379                            .path_for_item(entry.item.id())
 2380                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2381                    }
 2382                }
 2383            })
 2384        } else {
 2385            None
 2386        };
 2387
 2388        if let Some((project_path, abs_path, entry)) = to_load {
 2389            // If the item was no longer present, then load it again from its previous path, first try the local path
 2390            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2391
 2392            cx.spawn_in(window, async move  |workspace, cx| {
 2393                let open_by_project_path = open_by_project_path.await;
 2394                let mut navigated = false;
 2395                match open_by_project_path
 2396                    .with_context(|| format!("Navigating to {project_path:?}"))
 2397                {
 2398                    Ok((project_entry_id, build_item)) => {
 2399                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2400                            pane.nav_history_mut().set_mode(mode);
 2401                            pane.active_item().map(|p| p.item_id())
 2402                        })?;
 2403
 2404                        pane.update_in(cx, |pane, window, cx| {
 2405                            let item = pane.open_item(
 2406                                project_entry_id,
 2407                                project_path,
 2408                                true,
 2409                                entry.is_preview,
 2410                                true,
 2411                                None,
 2412                                window, cx,
 2413                                build_item,
 2414                            );
 2415                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2416                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2417                            if let Some(data) = entry.data {
 2418                                navigated |= item.navigate(data, window, cx);
 2419                            }
 2420                        })?;
 2421                    }
 2422                    Err(open_by_project_path_e) => {
 2423                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2424                        // and its worktree is now dropped
 2425                        if let Some(abs_path) = abs_path {
 2426                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2427                                pane.nav_history_mut().set_mode(mode);
 2428                                pane.active_item().map(|p| p.item_id())
 2429                            })?;
 2430                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2431                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2432                            })?;
 2433                            match open_by_abs_path
 2434                                .await
 2435                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2436                            {
 2437                                Ok(item) => {
 2438                                    pane.update_in(cx, |pane, window, cx| {
 2439                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2440                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2441                                        if let Some(data) = entry.data {
 2442                                            navigated |= item.navigate(data, window, cx);
 2443                                        }
 2444                                    })?;
 2445                                }
 2446                                Err(open_by_abs_path_e) => {
 2447                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2448                                }
 2449                            }
 2450                        }
 2451                    }
 2452                }
 2453
 2454                if !navigated {
 2455                    workspace
 2456                        .update_in(cx, |workspace, window, cx| {
 2457                            Self::navigate_history(workspace, pane, mode, window, cx)
 2458                        })?
 2459                        .await?;
 2460                }
 2461
 2462                Ok(())
 2463            })
 2464        } else {
 2465            Task::ready(Ok(()))
 2466        }
 2467    }
 2468
 2469    pub fn go_back(
 2470        &mut self,
 2471        pane: WeakEntity<Pane>,
 2472        window: &mut Window,
 2473        cx: &mut Context<Workspace>,
 2474    ) -> Task<Result<()>> {
 2475        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2476    }
 2477
 2478    pub fn go_forward(
 2479        &mut self,
 2480        pane: WeakEntity<Pane>,
 2481        window: &mut Window,
 2482        cx: &mut Context<Workspace>,
 2483    ) -> Task<Result<()>> {
 2484        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2485    }
 2486
 2487    pub fn reopen_closed_item(
 2488        &mut self,
 2489        window: &mut Window,
 2490        cx: &mut Context<Workspace>,
 2491    ) -> Task<Result<()>> {
 2492        self.navigate_history(
 2493            self.active_pane().downgrade(),
 2494            NavigationMode::ReopeningClosedItem,
 2495            window,
 2496            cx,
 2497        )
 2498    }
 2499
 2500    pub fn client(&self) -> &Arc<Client> {
 2501        &self.app_state.client
 2502    }
 2503
 2504    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2505        self.titlebar_item = Some(item);
 2506        cx.notify();
 2507    }
 2508
 2509    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2510        self.on_prompt_for_new_path = Some(prompt)
 2511    }
 2512
 2513    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2514        self.on_prompt_for_open_path = Some(prompt)
 2515    }
 2516
 2517    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2518        self.terminal_provider = Some(Box::new(provider));
 2519    }
 2520
 2521    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2522        self.debugger_provider = Some(Arc::new(provider));
 2523    }
 2524
 2525    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2526        self.debugger_provider.clone()
 2527    }
 2528
 2529    pub fn prompt_for_open_path(
 2530        &mut self,
 2531        path_prompt_options: PathPromptOptions,
 2532        lister: DirectoryLister,
 2533        window: &mut Window,
 2534        cx: &mut Context<Self>,
 2535    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2536        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2537            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2538            let rx = prompt(self, lister, window, cx);
 2539            self.on_prompt_for_open_path = Some(prompt);
 2540            rx
 2541        } else {
 2542            let (tx, rx) = oneshot::channel();
 2543            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2544
 2545            cx.spawn_in(window, async move |workspace, cx| {
 2546                let Ok(result) = abs_path.await else {
 2547                    return Ok(());
 2548                };
 2549
 2550                match result {
 2551                    Ok(result) => {
 2552                        tx.send(result).ok();
 2553                    }
 2554                    Err(err) => {
 2555                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2556                            workspace.show_portal_error(err.to_string(), cx);
 2557                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2558                            let rx = prompt(workspace, lister, window, cx);
 2559                            workspace.on_prompt_for_open_path = Some(prompt);
 2560                            rx
 2561                        })?;
 2562                        if let Ok(path) = rx.await {
 2563                            tx.send(path).ok();
 2564                        }
 2565                    }
 2566                };
 2567                anyhow::Ok(())
 2568            })
 2569            .detach();
 2570
 2571            rx
 2572        }
 2573    }
 2574
 2575    pub fn prompt_for_new_path(
 2576        &mut self,
 2577        lister: DirectoryLister,
 2578        suggested_name: Option<String>,
 2579        window: &mut Window,
 2580        cx: &mut Context<Self>,
 2581    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2582        if self.project.read(cx).is_via_collab()
 2583            || self.project.read(cx).is_via_remote_server()
 2584            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2585        {
 2586            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2587            let rx = prompt(self, lister, suggested_name, window, cx);
 2588            self.on_prompt_for_new_path = Some(prompt);
 2589            return rx;
 2590        }
 2591
 2592        let (tx, rx) = oneshot::channel();
 2593        cx.spawn_in(window, async move |workspace, cx| {
 2594            let abs_path = workspace.update(cx, |workspace, cx| {
 2595                let relative_to = workspace
 2596                    .most_recent_active_path(cx)
 2597                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2598                    .or_else(|| {
 2599                        let project = workspace.project.read(cx);
 2600                        project.visible_worktrees(cx).find_map(|worktree| {
 2601                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2602                        })
 2603                    })
 2604                    .or_else(std::env::home_dir)
 2605                    .unwrap_or_else(|| PathBuf::from(""));
 2606                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2607            })?;
 2608            let abs_path = match abs_path.await? {
 2609                Ok(path) => path,
 2610                Err(err) => {
 2611                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2612                        workspace.show_portal_error(err.to_string(), cx);
 2613
 2614                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2615                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2616                        workspace.on_prompt_for_new_path = Some(prompt);
 2617                        rx
 2618                    })?;
 2619                    if let Ok(path) = rx.await {
 2620                        tx.send(path).ok();
 2621                    }
 2622                    return anyhow::Ok(());
 2623                }
 2624            };
 2625
 2626            tx.send(abs_path.map(|path| vec![path])).ok();
 2627            anyhow::Ok(())
 2628        })
 2629        .detach();
 2630
 2631        rx
 2632    }
 2633
 2634    pub fn titlebar_item(&self) -> Option<AnyView> {
 2635        self.titlebar_item.clone()
 2636    }
 2637
 2638    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2639    /// When set, git-related operations should use this worktree instead of deriving
 2640    /// the active worktree from the focused file.
 2641    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2642        self.active_worktree_override
 2643    }
 2644
 2645    pub fn set_active_worktree_override(
 2646        &mut self,
 2647        worktree_id: Option<WorktreeId>,
 2648        cx: &mut Context<Self>,
 2649    ) {
 2650        self.active_worktree_override = worktree_id;
 2651        cx.notify();
 2652    }
 2653
 2654    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2655        self.active_worktree_override = None;
 2656        cx.notify();
 2657    }
 2658
 2659    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2660    ///
 2661    /// If the given workspace has a local project, then it will be passed
 2662    /// to the callback. Otherwise, a new empty window will be created.
 2663    pub fn with_local_workspace<T, F>(
 2664        &mut self,
 2665        window: &mut Window,
 2666        cx: &mut Context<Self>,
 2667        callback: F,
 2668    ) -> Task<Result<T>>
 2669    where
 2670        T: 'static,
 2671        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2672    {
 2673        if self.project.read(cx).is_local() {
 2674            Task::ready(Ok(callback(self, window, cx)))
 2675        } else {
 2676            let env = self.project.read(cx).cli_environment(cx);
 2677            let task = Self::new_local(
 2678                Vec::new(),
 2679                self.app_state.clone(),
 2680                None,
 2681                env,
 2682                None,
 2683                true,
 2684                cx,
 2685            );
 2686            cx.spawn_in(window, async move |_vh, cx| {
 2687                let OpenResult {
 2688                    window: multi_workspace_window,
 2689                    ..
 2690                } = task.await?;
 2691                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2692                    let workspace = multi_workspace.workspace().clone();
 2693                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2694                })
 2695            })
 2696        }
 2697    }
 2698
 2699    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2700    ///
 2701    /// If the given workspace has a local project, then it will be passed
 2702    /// to the callback. Otherwise, a new empty window will be created.
 2703    pub fn with_local_or_wsl_workspace<T, F>(
 2704        &mut self,
 2705        window: &mut Window,
 2706        cx: &mut Context<Self>,
 2707        callback: F,
 2708    ) -> Task<Result<T>>
 2709    where
 2710        T: 'static,
 2711        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2712    {
 2713        let project = self.project.read(cx);
 2714        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2715            Task::ready(Ok(callback(self, window, cx)))
 2716        } else {
 2717            let env = self.project.read(cx).cli_environment(cx);
 2718            let task = Self::new_local(
 2719                Vec::new(),
 2720                self.app_state.clone(),
 2721                None,
 2722                env,
 2723                None,
 2724                true,
 2725                cx,
 2726            );
 2727            cx.spawn_in(window, async move |_vh, cx| {
 2728                let OpenResult {
 2729                    window: multi_workspace_window,
 2730                    ..
 2731                } = task.await?;
 2732                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2733                    let workspace = multi_workspace.workspace().clone();
 2734                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2735                })
 2736            })
 2737        }
 2738    }
 2739
 2740    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2741        self.project.read(cx).worktrees(cx)
 2742    }
 2743
 2744    pub fn visible_worktrees<'a>(
 2745        &self,
 2746        cx: &'a App,
 2747    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2748        self.project.read(cx).visible_worktrees(cx)
 2749    }
 2750
 2751    #[cfg(any(test, feature = "test-support"))]
 2752    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2753        let futures = self
 2754            .worktrees(cx)
 2755            .filter_map(|worktree| worktree.read(cx).as_local())
 2756            .map(|worktree| worktree.scan_complete())
 2757            .collect::<Vec<_>>();
 2758        async move {
 2759            for future in futures {
 2760                future.await;
 2761            }
 2762        }
 2763    }
 2764
 2765    pub fn close_global(cx: &mut App) {
 2766        cx.defer(|cx| {
 2767            cx.windows().iter().find(|window| {
 2768                window
 2769                    .update(cx, |_, window, _| {
 2770                        if window.is_window_active() {
 2771                            //This can only get called when the window's project connection has been lost
 2772                            //so we don't need to prompt the user for anything and instead just close the window
 2773                            window.remove_window();
 2774                            true
 2775                        } else {
 2776                            false
 2777                        }
 2778                    })
 2779                    .unwrap_or(false)
 2780            });
 2781        });
 2782    }
 2783
 2784    pub fn move_focused_panel_to_next_position(
 2785        &mut self,
 2786        _: &MoveFocusedPanelToNextPosition,
 2787        window: &mut Window,
 2788        cx: &mut Context<Self>,
 2789    ) {
 2790        let docks = self.all_docks();
 2791        let active_dock = docks
 2792            .into_iter()
 2793            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2794
 2795        if let Some(dock) = active_dock {
 2796            dock.update(cx, |dock, cx| {
 2797                let active_panel = dock
 2798                    .active_panel()
 2799                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2800
 2801                if let Some(panel) = active_panel {
 2802                    panel.move_to_next_position(window, cx);
 2803                }
 2804            })
 2805        }
 2806    }
 2807
 2808    pub fn prepare_to_close(
 2809        &mut self,
 2810        close_intent: CloseIntent,
 2811        window: &mut Window,
 2812        cx: &mut Context<Self>,
 2813    ) -> Task<Result<bool>> {
 2814        let active_call = self.active_global_call();
 2815
 2816        cx.spawn_in(window, async move |this, cx| {
 2817            this.update(cx, |this, _| {
 2818                if close_intent == CloseIntent::CloseWindow {
 2819                    this.removing = true;
 2820                }
 2821            })?;
 2822
 2823            let workspace_count = cx.update(|_window, cx| {
 2824                cx.windows()
 2825                    .iter()
 2826                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 2827                    .count()
 2828            })?;
 2829
 2830            #[cfg(target_os = "macos")]
 2831            let save_last_workspace = false;
 2832
 2833            // On Linux and Windows, closing the last window should restore the last workspace.
 2834            #[cfg(not(target_os = "macos"))]
 2835            let save_last_workspace = {
 2836                let remaining_workspaces = cx.update(|_window, cx| {
 2837                    cx.windows()
 2838                        .iter()
 2839                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 2840                        .filter_map(|multi_workspace| {
 2841                            multi_workspace
 2842                                .update(cx, |multi_workspace, _, cx| {
 2843                                    multi_workspace.workspace().read(cx).removing
 2844                                })
 2845                                .ok()
 2846                        })
 2847                        .filter(|removing| !removing)
 2848                        .count()
 2849                })?;
 2850
 2851                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2852            };
 2853
 2854            if let Some(active_call) = active_call
 2855                && workspace_count == 1
 2856                && cx
 2857                    .update(|_window, cx| active_call.0.is_in_room(cx))
 2858                    .unwrap_or(false)
 2859            {
 2860                if close_intent == CloseIntent::CloseWindow {
 2861                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 2862                    let answer = cx.update(|window, cx| {
 2863                        window.prompt(
 2864                            PromptLevel::Warning,
 2865                            "Do you want to leave the current call?",
 2866                            None,
 2867                            &["Close window and hang up", "Cancel"],
 2868                            cx,
 2869                        )
 2870                    })?;
 2871
 2872                    if answer.await.log_err() == Some(1) {
 2873                        return anyhow::Ok(false);
 2874                    } else {
 2875                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 2876                            task.await.log_err();
 2877                        }
 2878                    }
 2879                }
 2880                if close_intent == CloseIntent::ReplaceWindow {
 2881                    _ = cx.update(|_window, cx| {
 2882                        let multi_workspace = cx
 2883                            .windows()
 2884                            .iter()
 2885                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 2886                            .next()
 2887                            .unwrap();
 2888                        let project = multi_workspace
 2889                            .read(cx)?
 2890                            .workspace()
 2891                            .read(cx)
 2892                            .project
 2893                            .clone();
 2894                        if project.read(cx).is_shared() {
 2895                            active_call.0.unshare_project(project, cx)?;
 2896                        }
 2897                        Ok::<_, anyhow::Error>(())
 2898                    });
 2899                }
 2900            }
 2901
 2902            let save_result = this
 2903                .update_in(cx, |this, window, cx| {
 2904                    this.save_all_internal(SaveIntent::Close, window, cx)
 2905                })?
 2906                .await;
 2907
 2908            // If we're not quitting, but closing, we remove the workspace from
 2909            // the current session.
 2910            if close_intent != CloseIntent::Quit
 2911                && !save_last_workspace
 2912                && save_result.as_ref().is_ok_and(|&res| res)
 2913            {
 2914                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2915                    .await;
 2916            }
 2917
 2918            save_result
 2919        })
 2920    }
 2921
 2922    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2923        self.save_all_internal(
 2924            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2925            window,
 2926            cx,
 2927        )
 2928        .detach_and_log_err(cx);
 2929    }
 2930
 2931    fn send_keystrokes(
 2932        &mut self,
 2933        action: &SendKeystrokes,
 2934        window: &mut Window,
 2935        cx: &mut Context<Self>,
 2936    ) {
 2937        let keystrokes: Vec<Keystroke> = action
 2938            .0
 2939            .split(' ')
 2940            .flat_map(|k| Keystroke::parse(k).log_err())
 2941            .map(|k| {
 2942                cx.keyboard_mapper()
 2943                    .map_key_equivalent(k, false)
 2944                    .inner()
 2945                    .clone()
 2946            })
 2947            .collect();
 2948        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2949    }
 2950
 2951    pub fn send_keystrokes_impl(
 2952        &mut self,
 2953        keystrokes: Vec<Keystroke>,
 2954        window: &mut Window,
 2955        cx: &mut Context<Self>,
 2956    ) -> Shared<Task<()>> {
 2957        let mut state = self.dispatching_keystrokes.borrow_mut();
 2958        if !state.dispatched.insert(keystrokes.clone()) {
 2959            cx.propagate();
 2960            return state.task.clone().unwrap();
 2961        }
 2962
 2963        state.queue.extend(keystrokes);
 2964
 2965        let keystrokes = self.dispatching_keystrokes.clone();
 2966        if state.task.is_none() {
 2967            state.task = Some(
 2968                window
 2969                    .spawn(cx, async move |cx| {
 2970                        // limit to 100 keystrokes to avoid infinite recursion.
 2971                        for _ in 0..100 {
 2972                            let keystroke = {
 2973                                let mut state = keystrokes.borrow_mut();
 2974                                let Some(keystroke) = state.queue.pop_front() else {
 2975                                    state.dispatched.clear();
 2976                                    state.task.take();
 2977                                    return;
 2978                                };
 2979                                keystroke
 2980                            };
 2981                            cx.update(|window, cx| {
 2982                                let focused = window.focused(cx);
 2983                                window.dispatch_keystroke(keystroke.clone(), cx);
 2984                                if window.focused(cx) != focused {
 2985                                    // dispatch_keystroke may cause the focus to change.
 2986                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2987                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2988                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2989                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2990                                    // )
 2991                                    window.draw(cx).clear();
 2992                                }
 2993                            })
 2994                            .ok();
 2995
 2996                            // Yield between synthetic keystrokes so deferred focus and
 2997                            // other effects can settle before dispatching the next key.
 2998                            yield_now().await;
 2999                        }
 3000
 3001                        *keystrokes.borrow_mut() = Default::default();
 3002                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3003                    })
 3004                    .shared(),
 3005            );
 3006        }
 3007        state.task.clone().unwrap()
 3008    }
 3009
 3010    fn save_all_internal(
 3011        &mut self,
 3012        mut save_intent: SaveIntent,
 3013        window: &mut Window,
 3014        cx: &mut Context<Self>,
 3015    ) -> Task<Result<bool>> {
 3016        if self.project.read(cx).is_disconnected(cx) {
 3017            return Task::ready(Ok(true));
 3018        }
 3019        let dirty_items = self
 3020            .panes
 3021            .iter()
 3022            .flat_map(|pane| {
 3023                pane.read(cx).items().filter_map(|item| {
 3024                    if item.is_dirty(cx) {
 3025                        item.tab_content_text(0, cx);
 3026                        Some((pane.downgrade(), item.boxed_clone()))
 3027                    } else {
 3028                        None
 3029                    }
 3030                })
 3031            })
 3032            .collect::<Vec<_>>();
 3033
 3034        let project = self.project.clone();
 3035        cx.spawn_in(window, async move |workspace, cx| {
 3036            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3037                let (serialize_tasks, remaining_dirty_items) =
 3038                    workspace.update_in(cx, |workspace, window, cx| {
 3039                        let mut remaining_dirty_items = Vec::new();
 3040                        let mut serialize_tasks = Vec::new();
 3041                        for (pane, item) in dirty_items {
 3042                            if let Some(task) = item
 3043                                .to_serializable_item_handle(cx)
 3044                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3045                            {
 3046                                serialize_tasks.push(task);
 3047                            } else {
 3048                                remaining_dirty_items.push((pane, item));
 3049                            }
 3050                        }
 3051                        (serialize_tasks, remaining_dirty_items)
 3052                    })?;
 3053
 3054                futures::future::try_join_all(serialize_tasks).await?;
 3055
 3056                if !remaining_dirty_items.is_empty() {
 3057                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3058                }
 3059
 3060                if remaining_dirty_items.len() > 1 {
 3061                    let answer = workspace.update_in(cx, |_, window, cx| {
 3062                        let detail = Pane::file_names_for_prompt(
 3063                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3064                            cx,
 3065                        );
 3066                        window.prompt(
 3067                            PromptLevel::Warning,
 3068                            "Do you want to save all changes in the following files?",
 3069                            Some(&detail),
 3070                            &["Save all", "Discard all", "Cancel"],
 3071                            cx,
 3072                        )
 3073                    })?;
 3074                    match answer.await.log_err() {
 3075                        Some(0) => save_intent = SaveIntent::SaveAll,
 3076                        Some(1) => save_intent = SaveIntent::Skip,
 3077                        Some(2) => return Ok(false),
 3078                        _ => {}
 3079                    }
 3080                }
 3081
 3082                remaining_dirty_items
 3083            } else {
 3084                dirty_items
 3085            };
 3086
 3087            for (pane, item) in dirty_items {
 3088                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3089                    (
 3090                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3091                        item.project_entry_ids(cx),
 3092                    )
 3093                })?;
 3094                if (singleton || !project_entry_ids.is_empty())
 3095                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3096                {
 3097                    return Ok(false);
 3098                }
 3099            }
 3100            Ok(true)
 3101        })
 3102    }
 3103
 3104    pub fn open_workspace_for_paths(
 3105        &mut self,
 3106        replace_current_window: bool,
 3107        paths: Vec<PathBuf>,
 3108        window: &mut Window,
 3109        cx: &mut Context<Self>,
 3110    ) -> Task<Result<Entity<Workspace>>> {
 3111        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 3112        let is_remote = self.project.read(cx).is_via_collab();
 3113        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3114        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3115
 3116        let window_to_replace = if replace_current_window {
 3117            window_handle
 3118        } else if is_remote || has_worktree || has_dirty_items {
 3119            None
 3120        } else {
 3121            window_handle
 3122        };
 3123        let app_state = self.app_state.clone();
 3124
 3125        cx.spawn(async move |_, cx| {
 3126            let OpenResult { workspace, .. } = cx
 3127                .update(|cx| {
 3128                    open_paths(
 3129                        &paths,
 3130                        app_state,
 3131                        OpenOptions {
 3132                            replace_window: window_to_replace,
 3133                            ..Default::default()
 3134                        },
 3135                        cx,
 3136                    )
 3137                })
 3138                .await?;
 3139            Ok(workspace)
 3140        })
 3141    }
 3142
 3143    #[allow(clippy::type_complexity)]
 3144    pub fn open_paths(
 3145        &mut self,
 3146        mut abs_paths: Vec<PathBuf>,
 3147        options: OpenOptions,
 3148        pane: Option<WeakEntity<Pane>>,
 3149        window: &mut Window,
 3150        cx: &mut Context<Self>,
 3151    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3152        let fs = self.app_state.fs.clone();
 3153
 3154        let caller_ordered_abs_paths = abs_paths.clone();
 3155
 3156        // Sort the paths to ensure we add worktrees for parents before their children.
 3157        abs_paths.sort_unstable();
 3158        cx.spawn_in(window, async move |this, cx| {
 3159            let mut tasks = Vec::with_capacity(abs_paths.len());
 3160
 3161            for abs_path in &abs_paths {
 3162                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3163                    OpenVisible::All => Some(true),
 3164                    OpenVisible::None => Some(false),
 3165                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3166                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3167                        Some(None) => Some(true),
 3168                        None => None,
 3169                    },
 3170                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3171                        Some(Some(metadata)) => Some(metadata.is_dir),
 3172                        Some(None) => Some(false),
 3173                        None => None,
 3174                    },
 3175                };
 3176                let project_path = match visible {
 3177                    Some(visible) => match this
 3178                        .update(cx, |this, cx| {
 3179                            Workspace::project_path_for_path(
 3180                                this.project.clone(),
 3181                                abs_path,
 3182                                visible,
 3183                                cx,
 3184                            )
 3185                        })
 3186                        .log_err()
 3187                    {
 3188                        Some(project_path) => project_path.await.log_err(),
 3189                        None => None,
 3190                    },
 3191                    None => None,
 3192                };
 3193
 3194                let this = this.clone();
 3195                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3196                let fs = fs.clone();
 3197                let pane = pane.clone();
 3198                let task = cx.spawn(async move |cx| {
 3199                    let (_worktree, project_path) = project_path?;
 3200                    if fs.is_dir(&abs_path).await {
 3201                        // Opening a directory should not race to update the active entry.
 3202                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3203                        None
 3204                    } else {
 3205                        Some(
 3206                            this.update_in(cx, |this, window, cx| {
 3207                                this.open_path(
 3208                                    project_path,
 3209                                    pane,
 3210                                    options.focus.unwrap_or(true),
 3211                                    window,
 3212                                    cx,
 3213                                )
 3214                            })
 3215                            .ok()?
 3216                            .await,
 3217                        )
 3218                    }
 3219                });
 3220                tasks.push(task);
 3221            }
 3222
 3223            let results = futures::future::join_all(tasks).await;
 3224
 3225            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3226            let mut winner: Option<(PathBuf, bool)> = None;
 3227            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3228                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3229                    if !metadata.is_dir {
 3230                        winner = Some((abs_path, false));
 3231                        break;
 3232                    }
 3233                    if winner.is_none() {
 3234                        winner = Some((abs_path, true));
 3235                    }
 3236                } else if winner.is_none() {
 3237                    winner = Some((abs_path, false));
 3238                }
 3239            }
 3240
 3241            // Compute the winner entry id on the foreground thread and emit once, after all
 3242            // paths finish opening. This avoids races between concurrently-opening paths
 3243            // (directories in particular) and makes the resulting project panel selection
 3244            // deterministic.
 3245            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3246                'emit_winner: {
 3247                    let winner_abs_path: Arc<Path> =
 3248                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3249
 3250                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3251                        OpenVisible::All => true,
 3252                        OpenVisible::None => false,
 3253                        OpenVisible::OnlyFiles => !winner_is_dir,
 3254                        OpenVisible::OnlyDirectories => winner_is_dir,
 3255                    };
 3256
 3257                    let Some(worktree_task) = this
 3258                        .update(cx, |workspace, cx| {
 3259                            workspace.project.update(cx, |project, cx| {
 3260                                project.find_or_create_worktree(
 3261                                    winner_abs_path.as_ref(),
 3262                                    visible,
 3263                                    cx,
 3264                                )
 3265                            })
 3266                        })
 3267                        .ok()
 3268                    else {
 3269                        break 'emit_winner;
 3270                    };
 3271
 3272                    let Ok((worktree, _)) = worktree_task.await else {
 3273                        break 'emit_winner;
 3274                    };
 3275
 3276                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3277                        let worktree = worktree.read(cx);
 3278                        let worktree_abs_path = worktree.abs_path();
 3279                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3280                            worktree.root_entry()
 3281                        } else {
 3282                            winner_abs_path
 3283                                .strip_prefix(worktree_abs_path.as_ref())
 3284                                .ok()
 3285                                .and_then(|relative_path| {
 3286                                    let relative_path =
 3287                                        RelPath::new(relative_path, PathStyle::local())
 3288                                            .log_err()?;
 3289                                    worktree.entry_for_path(&relative_path)
 3290                                })
 3291                        }?;
 3292                        Some(entry.id)
 3293                    }) else {
 3294                        break 'emit_winner;
 3295                    };
 3296
 3297                    this.update(cx, |workspace, cx| {
 3298                        workspace.project.update(cx, |_, cx| {
 3299                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3300                        });
 3301                    })
 3302                    .ok();
 3303                }
 3304            }
 3305
 3306            results
 3307        })
 3308    }
 3309
 3310    pub fn open_resolved_path(
 3311        &mut self,
 3312        path: ResolvedPath,
 3313        window: &mut Window,
 3314        cx: &mut Context<Self>,
 3315    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3316        match path {
 3317            ResolvedPath::ProjectPath { project_path, .. } => {
 3318                self.open_path(project_path, None, true, window, cx)
 3319            }
 3320            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3321                PathBuf::from(path),
 3322                OpenOptions {
 3323                    visible: Some(OpenVisible::None),
 3324                    ..Default::default()
 3325                },
 3326                window,
 3327                cx,
 3328            ),
 3329        }
 3330    }
 3331
 3332    pub fn absolute_path_of_worktree(
 3333        &self,
 3334        worktree_id: WorktreeId,
 3335        cx: &mut Context<Self>,
 3336    ) -> Option<PathBuf> {
 3337        self.project
 3338            .read(cx)
 3339            .worktree_for_id(worktree_id, cx)
 3340            // TODO: use `abs_path` or `root_dir`
 3341            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3342    }
 3343
 3344    fn add_folder_to_project(
 3345        &mut self,
 3346        _: &AddFolderToProject,
 3347        window: &mut Window,
 3348        cx: &mut Context<Self>,
 3349    ) {
 3350        let project = self.project.read(cx);
 3351        if project.is_via_collab() {
 3352            self.show_error(
 3353                &anyhow!("You cannot add folders to someone else's project"),
 3354                cx,
 3355            );
 3356            return;
 3357        }
 3358        let paths = self.prompt_for_open_path(
 3359            PathPromptOptions {
 3360                files: false,
 3361                directories: true,
 3362                multiple: true,
 3363                prompt: None,
 3364            },
 3365            DirectoryLister::Project(self.project.clone()),
 3366            window,
 3367            cx,
 3368        );
 3369        cx.spawn_in(window, async move |this, cx| {
 3370            if let Some(paths) = paths.await.log_err().flatten() {
 3371                let results = this
 3372                    .update_in(cx, |this, window, cx| {
 3373                        this.open_paths(
 3374                            paths,
 3375                            OpenOptions {
 3376                                visible: Some(OpenVisible::All),
 3377                                ..Default::default()
 3378                            },
 3379                            None,
 3380                            window,
 3381                            cx,
 3382                        )
 3383                    })?
 3384                    .await;
 3385                for result in results.into_iter().flatten() {
 3386                    result.log_err();
 3387                }
 3388            }
 3389            anyhow::Ok(())
 3390        })
 3391        .detach_and_log_err(cx);
 3392    }
 3393
 3394    pub fn project_path_for_path(
 3395        project: Entity<Project>,
 3396        abs_path: &Path,
 3397        visible: bool,
 3398        cx: &mut App,
 3399    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3400        let entry = project.update(cx, |project, cx| {
 3401            project.find_or_create_worktree(abs_path, visible, cx)
 3402        });
 3403        cx.spawn(async move |cx| {
 3404            let (worktree, path) = entry.await?;
 3405            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3406            Ok((worktree, ProjectPath { worktree_id, path }))
 3407        })
 3408    }
 3409
 3410    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3411        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3412    }
 3413
 3414    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3415        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3416    }
 3417
 3418    pub fn items_of_type<'a, T: Item>(
 3419        &'a self,
 3420        cx: &'a App,
 3421    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3422        self.panes
 3423            .iter()
 3424            .flat_map(|pane| pane.read(cx).items_of_type())
 3425    }
 3426
 3427    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3428        self.active_pane().read(cx).active_item()
 3429    }
 3430
 3431    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3432        let item = self.active_item(cx)?;
 3433        item.to_any_view().downcast::<I>().ok()
 3434    }
 3435
 3436    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3437        self.active_item(cx).and_then(|item| item.project_path(cx))
 3438    }
 3439
 3440    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3441        self.recent_navigation_history_iter(cx)
 3442            .filter_map(|(path, abs_path)| {
 3443                let worktree = self
 3444                    .project
 3445                    .read(cx)
 3446                    .worktree_for_id(path.worktree_id, cx)?;
 3447                if worktree.read(cx).is_visible() {
 3448                    abs_path
 3449                } else {
 3450                    None
 3451                }
 3452            })
 3453            .next()
 3454    }
 3455
 3456    pub fn save_active_item(
 3457        &mut self,
 3458        save_intent: SaveIntent,
 3459        window: &mut Window,
 3460        cx: &mut App,
 3461    ) -> Task<Result<()>> {
 3462        let project = self.project.clone();
 3463        let pane = self.active_pane();
 3464        let item = pane.read(cx).active_item();
 3465        let pane = pane.downgrade();
 3466
 3467        window.spawn(cx, async move |cx| {
 3468            if let Some(item) = item {
 3469                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3470                    .await
 3471                    .map(|_| ())
 3472            } else {
 3473                Ok(())
 3474            }
 3475        })
 3476    }
 3477
 3478    pub fn close_inactive_items_and_panes(
 3479        &mut self,
 3480        action: &CloseInactiveTabsAndPanes,
 3481        window: &mut Window,
 3482        cx: &mut Context<Self>,
 3483    ) {
 3484        if let Some(task) = self.close_all_internal(
 3485            true,
 3486            action.save_intent.unwrap_or(SaveIntent::Close),
 3487            window,
 3488            cx,
 3489        ) {
 3490            task.detach_and_log_err(cx)
 3491        }
 3492    }
 3493
 3494    pub fn close_all_items_and_panes(
 3495        &mut self,
 3496        action: &CloseAllItemsAndPanes,
 3497        window: &mut Window,
 3498        cx: &mut Context<Self>,
 3499    ) {
 3500        if let Some(task) = self.close_all_internal(
 3501            false,
 3502            action.save_intent.unwrap_or(SaveIntent::Close),
 3503            window,
 3504            cx,
 3505        ) {
 3506            task.detach_and_log_err(cx)
 3507        }
 3508    }
 3509
 3510    /// Closes the active item across all panes.
 3511    pub fn close_item_in_all_panes(
 3512        &mut self,
 3513        action: &CloseItemInAllPanes,
 3514        window: &mut Window,
 3515        cx: &mut Context<Self>,
 3516    ) {
 3517        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3518            return;
 3519        };
 3520
 3521        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3522        let close_pinned = action.close_pinned;
 3523
 3524        if let Some(project_path) = active_item.project_path(cx) {
 3525            self.close_items_with_project_path(
 3526                &project_path,
 3527                save_intent,
 3528                close_pinned,
 3529                window,
 3530                cx,
 3531            );
 3532        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3533            let item_id = active_item.item_id();
 3534            self.active_pane().update(cx, |pane, cx| {
 3535                pane.close_item_by_id(item_id, save_intent, window, cx)
 3536                    .detach_and_log_err(cx);
 3537            });
 3538        }
 3539    }
 3540
 3541    /// Closes all items with the given project path across all panes.
 3542    pub fn close_items_with_project_path(
 3543        &mut self,
 3544        project_path: &ProjectPath,
 3545        save_intent: SaveIntent,
 3546        close_pinned: bool,
 3547        window: &mut Window,
 3548        cx: &mut Context<Self>,
 3549    ) {
 3550        let panes = self.panes().to_vec();
 3551        for pane in panes {
 3552            pane.update(cx, |pane, cx| {
 3553                pane.close_items_for_project_path(
 3554                    project_path,
 3555                    save_intent,
 3556                    close_pinned,
 3557                    window,
 3558                    cx,
 3559                )
 3560                .detach_and_log_err(cx);
 3561            });
 3562        }
 3563    }
 3564
 3565    fn close_all_internal(
 3566        &mut self,
 3567        retain_active_pane: bool,
 3568        save_intent: SaveIntent,
 3569        window: &mut Window,
 3570        cx: &mut Context<Self>,
 3571    ) -> Option<Task<Result<()>>> {
 3572        let current_pane = self.active_pane();
 3573
 3574        let mut tasks = Vec::new();
 3575
 3576        if retain_active_pane {
 3577            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3578                pane.close_other_items(
 3579                    &CloseOtherItems {
 3580                        save_intent: None,
 3581                        close_pinned: false,
 3582                    },
 3583                    None,
 3584                    window,
 3585                    cx,
 3586                )
 3587            });
 3588
 3589            tasks.push(current_pane_close);
 3590        }
 3591
 3592        for pane in self.panes() {
 3593            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3594                continue;
 3595            }
 3596
 3597            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3598                pane.close_all_items(
 3599                    &CloseAllItems {
 3600                        save_intent: Some(save_intent),
 3601                        close_pinned: false,
 3602                    },
 3603                    window,
 3604                    cx,
 3605                )
 3606            });
 3607
 3608            tasks.push(close_pane_items)
 3609        }
 3610
 3611        if tasks.is_empty() {
 3612            None
 3613        } else {
 3614            Some(cx.spawn_in(window, async move |_, _| {
 3615                for task in tasks {
 3616                    task.await?
 3617                }
 3618                Ok(())
 3619            }))
 3620        }
 3621    }
 3622
 3623    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3624        self.dock_at_position(position).read(cx).is_open()
 3625    }
 3626
 3627    pub fn toggle_dock(
 3628        &mut self,
 3629        dock_side: DockPosition,
 3630        window: &mut Window,
 3631        cx: &mut Context<Self>,
 3632    ) {
 3633        let mut focus_center = false;
 3634        let mut reveal_dock = false;
 3635
 3636        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3637        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3638
 3639        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3640            telemetry::event!(
 3641                "Panel Button Clicked",
 3642                name = panel.persistent_name(),
 3643                toggle_state = !was_visible
 3644            );
 3645        }
 3646        if was_visible {
 3647            self.save_open_dock_positions(cx);
 3648        }
 3649
 3650        let dock = self.dock_at_position(dock_side);
 3651        dock.update(cx, |dock, cx| {
 3652            dock.set_open(!was_visible, window, cx);
 3653
 3654            if dock.active_panel().is_none() {
 3655                let Some(panel_ix) = dock
 3656                    .first_enabled_panel_idx(cx)
 3657                    .log_with_level(log::Level::Info)
 3658                else {
 3659                    return;
 3660                };
 3661                dock.activate_panel(panel_ix, window, cx);
 3662            }
 3663
 3664            if let Some(active_panel) = dock.active_panel() {
 3665                if was_visible {
 3666                    if active_panel
 3667                        .panel_focus_handle(cx)
 3668                        .contains_focused(window, cx)
 3669                    {
 3670                        focus_center = true;
 3671                    }
 3672                } else {
 3673                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3674                    window.focus(focus_handle, cx);
 3675                    reveal_dock = true;
 3676                }
 3677            }
 3678        });
 3679
 3680        if reveal_dock {
 3681            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3682        }
 3683
 3684        if focus_center {
 3685            self.active_pane
 3686                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3687        }
 3688
 3689        cx.notify();
 3690        self.serialize_workspace(window, cx);
 3691    }
 3692
 3693    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3694        self.all_docks().into_iter().find(|&dock| {
 3695            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3696        })
 3697    }
 3698
 3699    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3700        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3701            self.save_open_dock_positions(cx);
 3702            dock.update(cx, |dock, cx| {
 3703                dock.set_open(false, window, cx);
 3704            });
 3705            return true;
 3706        }
 3707        false
 3708    }
 3709
 3710    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3711        self.save_open_dock_positions(cx);
 3712        for dock in self.all_docks() {
 3713            dock.update(cx, |dock, cx| {
 3714                dock.set_open(false, window, cx);
 3715            });
 3716        }
 3717
 3718        cx.focus_self(window);
 3719        cx.notify();
 3720        self.serialize_workspace(window, cx);
 3721    }
 3722
 3723    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3724        self.all_docks()
 3725            .into_iter()
 3726            .filter_map(|dock| {
 3727                let dock_ref = dock.read(cx);
 3728                if dock_ref.is_open() {
 3729                    Some(dock_ref.position())
 3730                } else {
 3731                    None
 3732                }
 3733            })
 3734            .collect()
 3735    }
 3736
 3737    /// Saves the positions of currently open docks.
 3738    ///
 3739    /// Updates `last_open_dock_positions` with positions of all currently open
 3740    /// docks, to later be restored by the 'Toggle All Docks' action.
 3741    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3742        let open_dock_positions = self.get_open_dock_positions(cx);
 3743        if !open_dock_positions.is_empty() {
 3744            self.last_open_dock_positions = open_dock_positions;
 3745        }
 3746    }
 3747
 3748    /// Toggles all docks between open and closed states.
 3749    ///
 3750    /// If any docks are open, closes all and remembers their positions. If all
 3751    /// docks are closed, restores the last remembered dock configuration.
 3752    fn toggle_all_docks(
 3753        &mut self,
 3754        _: &ToggleAllDocks,
 3755        window: &mut Window,
 3756        cx: &mut Context<Self>,
 3757    ) {
 3758        let open_dock_positions = self.get_open_dock_positions(cx);
 3759
 3760        if !open_dock_positions.is_empty() {
 3761            self.close_all_docks(window, cx);
 3762        } else if !self.last_open_dock_positions.is_empty() {
 3763            self.restore_last_open_docks(window, cx);
 3764        }
 3765    }
 3766
 3767    /// Reopens docks from the most recently remembered configuration.
 3768    ///
 3769    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3770    /// and clears the stored positions.
 3771    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3772        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3773
 3774        for position in positions_to_open {
 3775            let dock = self.dock_at_position(position);
 3776            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3777        }
 3778
 3779        cx.focus_self(window);
 3780        cx.notify();
 3781        self.serialize_workspace(window, cx);
 3782    }
 3783
 3784    /// Transfer focus to the panel of the given type.
 3785    pub fn focus_panel<T: Panel>(
 3786        &mut self,
 3787        window: &mut Window,
 3788        cx: &mut Context<Self>,
 3789    ) -> Option<Entity<T>> {
 3790        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 3791        panel.to_any().downcast().ok()
 3792    }
 3793
 3794    /// Focus the panel of the given type if it isn't already focused. If it is
 3795    /// already focused, then transfer focus back to the workspace center.
 3796    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 3797    /// panel when transferring focus back to the center.
 3798    pub fn toggle_panel_focus<T: Panel>(
 3799        &mut self,
 3800        window: &mut Window,
 3801        cx: &mut Context<Self>,
 3802    ) -> bool {
 3803        let mut did_focus_panel = false;
 3804        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 3805            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3806            did_focus_panel
 3807        });
 3808
 3809        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 3810            self.close_panel::<T>(window, cx);
 3811        }
 3812
 3813        telemetry::event!(
 3814            "Panel Button Clicked",
 3815            name = T::persistent_name(),
 3816            toggle_state = did_focus_panel
 3817        );
 3818
 3819        did_focus_panel
 3820    }
 3821
 3822    pub fn activate_panel_for_proto_id(
 3823        &mut self,
 3824        panel_id: PanelId,
 3825        window: &mut Window,
 3826        cx: &mut Context<Self>,
 3827    ) -> Option<Arc<dyn PanelHandle>> {
 3828        let mut panel = None;
 3829        for dock in self.all_docks() {
 3830            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3831                panel = dock.update(cx, |dock, cx| {
 3832                    dock.activate_panel(panel_index, window, cx);
 3833                    dock.set_open(true, window, cx);
 3834                    dock.active_panel().cloned()
 3835                });
 3836                break;
 3837            }
 3838        }
 3839
 3840        if panel.is_some() {
 3841            cx.notify();
 3842            self.serialize_workspace(window, cx);
 3843        }
 3844
 3845        panel
 3846    }
 3847
 3848    /// Focus or unfocus the given panel type, depending on the given callback.
 3849    fn focus_or_unfocus_panel<T: Panel>(
 3850        &mut self,
 3851        window: &mut Window,
 3852        cx: &mut Context<Self>,
 3853        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3854    ) -> Option<Arc<dyn PanelHandle>> {
 3855        let mut result_panel = None;
 3856        let mut serialize = false;
 3857        for dock in self.all_docks() {
 3858            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3859                let mut focus_center = false;
 3860                let panel = dock.update(cx, |dock, cx| {
 3861                    dock.activate_panel(panel_index, window, cx);
 3862
 3863                    let panel = dock.active_panel().cloned();
 3864                    if let Some(panel) = panel.as_ref() {
 3865                        if should_focus(&**panel, window, cx) {
 3866                            dock.set_open(true, window, cx);
 3867                            panel.panel_focus_handle(cx).focus(window, cx);
 3868                        } else {
 3869                            focus_center = true;
 3870                        }
 3871                    }
 3872                    panel
 3873                });
 3874
 3875                if focus_center {
 3876                    self.active_pane
 3877                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3878                }
 3879
 3880                result_panel = panel;
 3881                serialize = true;
 3882                break;
 3883            }
 3884        }
 3885
 3886        if serialize {
 3887            self.serialize_workspace(window, cx);
 3888        }
 3889
 3890        cx.notify();
 3891        result_panel
 3892    }
 3893
 3894    /// Open the panel of the given type
 3895    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3896        for dock in self.all_docks() {
 3897            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3898                dock.update(cx, |dock, cx| {
 3899                    dock.activate_panel(panel_index, window, cx);
 3900                    dock.set_open(true, window, cx);
 3901                });
 3902            }
 3903        }
 3904    }
 3905
 3906    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3907        for dock in self.all_docks().iter() {
 3908            dock.update(cx, |dock, cx| {
 3909                if dock.panel::<T>().is_some() {
 3910                    dock.set_open(false, window, cx)
 3911                }
 3912            })
 3913        }
 3914    }
 3915
 3916    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3917        self.all_docks()
 3918            .iter()
 3919            .find_map(|dock| dock.read(cx).panel::<T>())
 3920    }
 3921
 3922    fn dismiss_zoomed_items_to_reveal(
 3923        &mut self,
 3924        dock_to_reveal: Option<DockPosition>,
 3925        window: &mut Window,
 3926        cx: &mut Context<Self>,
 3927    ) {
 3928        // If a center pane is zoomed, unzoom it.
 3929        for pane in &self.panes {
 3930            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3931                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3932            }
 3933        }
 3934
 3935        // If another dock is zoomed, hide it.
 3936        let mut focus_center = false;
 3937        for dock in self.all_docks() {
 3938            dock.update(cx, |dock, cx| {
 3939                if Some(dock.position()) != dock_to_reveal
 3940                    && let Some(panel) = dock.active_panel()
 3941                    && panel.is_zoomed(window, cx)
 3942                {
 3943                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3944                    dock.set_open(false, window, cx);
 3945                }
 3946            });
 3947        }
 3948
 3949        if focus_center {
 3950            self.active_pane
 3951                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3952        }
 3953
 3954        if self.zoomed_position != dock_to_reveal {
 3955            self.zoomed = None;
 3956            self.zoomed_position = None;
 3957            cx.emit(Event::ZoomChanged);
 3958        }
 3959
 3960        cx.notify();
 3961    }
 3962
 3963    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3964        let pane = cx.new(|cx| {
 3965            let mut pane = Pane::new(
 3966                self.weak_handle(),
 3967                self.project.clone(),
 3968                self.pane_history_timestamp.clone(),
 3969                None,
 3970                NewFile.boxed_clone(),
 3971                true,
 3972                window,
 3973                cx,
 3974            );
 3975            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3976            pane
 3977        });
 3978        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3979            .detach();
 3980        self.panes.push(pane.clone());
 3981
 3982        window.focus(&pane.focus_handle(cx), cx);
 3983
 3984        cx.emit(Event::PaneAdded(pane.clone()));
 3985        pane
 3986    }
 3987
 3988    pub fn add_item_to_center(
 3989        &mut self,
 3990        item: Box<dyn ItemHandle>,
 3991        window: &mut Window,
 3992        cx: &mut Context<Self>,
 3993    ) -> bool {
 3994        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3995            if let Some(center_pane) = center_pane.upgrade() {
 3996                center_pane.update(cx, |pane, cx| {
 3997                    pane.add_item(item, true, true, None, window, cx)
 3998                });
 3999                true
 4000            } else {
 4001                false
 4002            }
 4003        } else {
 4004            false
 4005        }
 4006    }
 4007
 4008    pub fn add_item_to_active_pane(
 4009        &mut self,
 4010        item: Box<dyn ItemHandle>,
 4011        destination_index: Option<usize>,
 4012        focus_item: bool,
 4013        window: &mut Window,
 4014        cx: &mut App,
 4015    ) {
 4016        self.add_item(
 4017            self.active_pane.clone(),
 4018            item,
 4019            destination_index,
 4020            false,
 4021            focus_item,
 4022            window,
 4023            cx,
 4024        )
 4025    }
 4026
 4027    pub fn add_item(
 4028        &mut self,
 4029        pane: Entity<Pane>,
 4030        item: Box<dyn ItemHandle>,
 4031        destination_index: Option<usize>,
 4032        activate_pane: bool,
 4033        focus_item: bool,
 4034        window: &mut Window,
 4035        cx: &mut App,
 4036    ) {
 4037        pane.update(cx, |pane, cx| {
 4038            pane.add_item(
 4039                item,
 4040                activate_pane,
 4041                focus_item,
 4042                destination_index,
 4043                window,
 4044                cx,
 4045            )
 4046        });
 4047    }
 4048
 4049    pub fn split_item(
 4050        &mut self,
 4051        split_direction: SplitDirection,
 4052        item: Box<dyn ItemHandle>,
 4053        window: &mut Window,
 4054        cx: &mut Context<Self>,
 4055    ) {
 4056        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4057        self.add_item(new_pane, item, None, true, true, window, cx);
 4058    }
 4059
 4060    pub fn open_abs_path(
 4061        &mut self,
 4062        abs_path: PathBuf,
 4063        options: OpenOptions,
 4064        window: &mut Window,
 4065        cx: &mut Context<Self>,
 4066    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4067        cx.spawn_in(window, async move |workspace, cx| {
 4068            let open_paths_task_result = workspace
 4069                .update_in(cx, |workspace, window, cx| {
 4070                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4071                })
 4072                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4073                .await;
 4074            anyhow::ensure!(
 4075                open_paths_task_result.len() == 1,
 4076                "open abs path {abs_path:?} task returned incorrect number of results"
 4077            );
 4078            match open_paths_task_result
 4079                .into_iter()
 4080                .next()
 4081                .expect("ensured single task result")
 4082            {
 4083                Some(open_result) => {
 4084                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4085                }
 4086                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4087            }
 4088        })
 4089    }
 4090
 4091    pub fn split_abs_path(
 4092        &mut self,
 4093        abs_path: PathBuf,
 4094        visible: bool,
 4095        window: &mut Window,
 4096        cx: &mut Context<Self>,
 4097    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4098        let project_path_task =
 4099            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4100        cx.spawn_in(window, async move |this, cx| {
 4101            let (_, path) = project_path_task.await?;
 4102            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4103                .await
 4104        })
 4105    }
 4106
 4107    pub fn open_path(
 4108        &mut self,
 4109        path: impl Into<ProjectPath>,
 4110        pane: Option<WeakEntity<Pane>>,
 4111        focus_item: bool,
 4112        window: &mut Window,
 4113        cx: &mut App,
 4114    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4115        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4116    }
 4117
 4118    pub fn open_path_preview(
 4119        &mut self,
 4120        path: impl Into<ProjectPath>,
 4121        pane: Option<WeakEntity<Pane>>,
 4122        focus_item: bool,
 4123        allow_preview: bool,
 4124        activate: bool,
 4125        window: &mut Window,
 4126        cx: &mut App,
 4127    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4128        let pane = pane.unwrap_or_else(|| {
 4129            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4130                self.panes
 4131                    .first()
 4132                    .expect("There must be an active pane")
 4133                    .downgrade()
 4134            })
 4135        });
 4136
 4137        let project_path = path.into();
 4138        let task = self.load_path(project_path.clone(), window, cx);
 4139        window.spawn(cx, async move |cx| {
 4140            let (project_entry_id, build_item) = task.await?;
 4141
 4142            pane.update_in(cx, |pane, window, cx| {
 4143                pane.open_item(
 4144                    project_entry_id,
 4145                    project_path,
 4146                    focus_item,
 4147                    allow_preview,
 4148                    activate,
 4149                    None,
 4150                    window,
 4151                    cx,
 4152                    build_item,
 4153                )
 4154            })
 4155        })
 4156    }
 4157
 4158    pub fn split_path(
 4159        &mut self,
 4160        path: impl Into<ProjectPath>,
 4161        window: &mut Window,
 4162        cx: &mut Context<Self>,
 4163    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4164        self.split_path_preview(path, false, None, window, cx)
 4165    }
 4166
 4167    pub fn split_path_preview(
 4168        &mut self,
 4169        path: impl Into<ProjectPath>,
 4170        allow_preview: bool,
 4171        split_direction: Option<SplitDirection>,
 4172        window: &mut Window,
 4173        cx: &mut Context<Self>,
 4174    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4175        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4176            self.panes
 4177                .first()
 4178                .expect("There must be an active pane")
 4179                .downgrade()
 4180        });
 4181
 4182        if let Member::Pane(center_pane) = &self.center.root
 4183            && center_pane.read(cx).items_len() == 0
 4184        {
 4185            return self.open_path(path, Some(pane), true, window, cx);
 4186        }
 4187
 4188        let project_path = path.into();
 4189        let task = self.load_path(project_path.clone(), window, cx);
 4190        cx.spawn_in(window, async move |this, cx| {
 4191            let (project_entry_id, build_item) = task.await?;
 4192            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4193                let pane = pane.upgrade()?;
 4194                let new_pane = this.split_pane(
 4195                    pane,
 4196                    split_direction.unwrap_or(SplitDirection::Right),
 4197                    window,
 4198                    cx,
 4199                );
 4200                new_pane.update(cx, |new_pane, cx| {
 4201                    Some(new_pane.open_item(
 4202                        project_entry_id,
 4203                        project_path,
 4204                        true,
 4205                        allow_preview,
 4206                        true,
 4207                        None,
 4208                        window,
 4209                        cx,
 4210                        build_item,
 4211                    ))
 4212                })
 4213            })
 4214            .map(|option| option.context("pane was dropped"))?
 4215        })
 4216    }
 4217
 4218    fn load_path(
 4219        &mut self,
 4220        path: ProjectPath,
 4221        window: &mut Window,
 4222        cx: &mut App,
 4223    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4224        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4225        registry.open_path(self.project(), &path, window, cx)
 4226    }
 4227
 4228    pub fn find_project_item<T>(
 4229        &self,
 4230        pane: &Entity<Pane>,
 4231        project_item: &Entity<T::Item>,
 4232        cx: &App,
 4233    ) -> Option<Entity<T>>
 4234    where
 4235        T: ProjectItem,
 4236    {
 4237        use project::ProjectItem as _;
 4238        let project_item = project_item.read(cx);
 4239        let entry_id = project_item.entry_id(cx);
 4240        let project_path = project_item.project_path(cx);
 4241
 4242        let mut item = None;
 4243        if let Some(entry_id) = entry_id {
 4244            item = pane.read(cx).item_for_entry(entry_id, cx);
 4245        }
 4246        if item.is_none()
 4247            && let Some(project_path) = project_path
 4248        {
 4249            item = pane.read(cx).item_for_path(project_path, cx);
 4250        }
 4251
 4252        item.and_then(|item| item.downcast::<T>())
 4253    }
 4254
 4255    pub fn is_project_item_open<T>(
 4256        &self,
 4257        pane: &Entity<Pane>,
 4258        project_item: &Entity<T::Item>,
 4259        cx: &App,
 4260    ) -> bool
 4261    where
 4262        T: ProjectItem,
 4263    {
 4264        self.find_project_item::<T>(pane, project_item, cx)
 4265            .is_some()
 4266    }
 4267
 4268    pub fn open_project_item<T>(
 4269        &mut self,
 4270        pane: Entity<Pane>,
 4271        project_item: Entity<T::Item>,
 4272        activate_pane: bool,
 4273        focus_item: bool,
 4274        keep_old_preview: bool,
 4275        allow_new_preview: bool,
 4276        window: &mut Window,
 4277        cx: &mut Context<Self>,
 4278    ) -> Entity<T>
 4279    where
 4280        T: ProjectItem,
 4281    {
 4282        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4283
 4284        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4285            if !keep_old_preview
 4286                && let Some(old_id) = old_item_id
 4287                && old_id != item.item_id()
 4288            {
 4289                // switching to a different item, so unpreview old active item
 4290                pane.update(cx, |pane, _| {
 4291                    pane.unpreview_item_if_preview(old_id);
 4292                });
 4293            }
 4294
 4295            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4296            if !allow_new_preview {
 4297                pane.update(cx, |pane, _| {
 4298                    pane.unpreview_item_if_preview(item.item_id());
 4299                });
 4300            }
 4301            return item;
 4302        }
 4303
 4304        let item = pane.update(cx, |pane, cx| {
 4305            cx.new(|cx| {
 4306                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4307            })
 4308        });
 4309        let mut destination_index = None;
 4310        pane.update(cx, |pane, cx| {
 4311            if !keep_old_preview && let Some(old_id) = old_item_id {
 4312                pane.unpreview_item_if_preview(old_id);
 4313            }
 4314            if allow_new_preview {
 4315                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4316            }
 4317        });
 4318
 4319        self.add_item(
 4320            pane,
 4321            Box::new(item.clone()),
 4322            destination_index,
 4323            activate_pane,
 4324            focus_item,
 4325            window,
 4326            cx,
 4327        );
 4328        item
 4329    }
 4330
 4331    pub fn open_shared_screen(
 4332        &mut self,
 4333        peer_id: PeerId,
 4334        window: &mut Window,
 4335        cx: &mut Context<Self>,
 4336    ) {
 4337        if let Some(shared_screen) =
 4338            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4339        {
 4340            self.active_pane.update(cx, |pane, cx| {
 4341                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4342            });
 4343        }
 4344    }
 4345
 4346    pub fn activate_item(
 4347        &mut self,
 4348        item: &dyn ItemHandle,
 4349        activate_pane: bool,
 4350        focus_item: bool,
 4351        window: &mut Window,
 4352        cx: &mut App,
 4353    ) -> bool {
 4354        let result = self.panes.iter().find_map(|pane| {
 4355            pane.read(cx)
 4356                .index_for_item(item)
 4357                .map(|ix| (pane.clone(), ix))
 4358        });
 4359        if let Some((pane, ix)) = result {
 4360            pane.update(cx, |pane, cx| {
 4361                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4362            });
 4363            true
 4364        } else {
 4365            false
 4366        }
 4367    }
 4368
 4369    fn activate_pane_at_index(
 4370        &mut self,
 4371        action: &ActivatePane,
 4372        window: &mut Window,
 4373        cx: &mut Context<Self>,
 4374    ) {
 4375        let panes = self.center.panes();
 4376        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4377            window.focus(&pane.focus_handle(cx), cx);
 4378        } else {
 4379            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4380                .detach();
 4381        }
 4382    }
 4383
 4384    fn move_item_to_pane_at_index(
 4385        &mut self,
 4386        action: &MoveItemToPane,
 4387        window: &mut Window,
 4388        cx: &mut Context<Self>,
 4389    ) {
 4390        let panes = self.center.panes();
 4391        let destination = match panes.get(action.destination) {
 4392            Some(&destination) => destination.clone(),
 4393            None => {
 4394                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4395                    return;
 4396                }
 4397                let direction = SplitDirection::Right;
 4398                let split_off_pane = self
 4399                    .find_pane_in_direction(direction, cx)
 4400                    .unwrap_or_else(|| self.active_pane.clone());
 4401                let new_pane = self.add_pane(window, cx);
 4402                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4403                new_pane
 4404            }
 4405        };
 4406
 4407        if action.clone {
 4408            if self
 4409                .active_pane
 4410                .read(cx)
 4411                .active_item()
 4412                .is_some_and(|item| item.can_split(cx))
 4413            {
 4414                clone_active_item(
 4415                    self.database_id(),
 4416                    &self.active_pane,
 4417                    &destination,
 4418                    action.focus,
 4419                    window,
 4420                    cx,
 4421                );
 4422                return;
 4423            }
 4424        }
 4425        move_active_item(
 4426            &self.active_pane,
 4427            &destination,
 4428            action.focus,
 4429            true,
 4430            window,
 4431            cx,
 4432        )
 4433    }
 4434
 4435    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4436        let panes = self.center.panes();
 4437        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4438            let next_ix = (ix + 1) % panes.len();
 4439            let next_pane = panes[next_ix].clone();
 4440            window.focus(&next_pane.focus_handle(cx), cx);
 4441        }
 4442    }
 4443
 4444    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4445        let panes = self.center.panes();
 4446        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4447            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4448            let prev_pane = panes[prev_ix].clone();
 4449            window.focus(&prev_pane.focus_handle(cx), cx);
 4450        }
 4451    }
 4452
 4453    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4454        let last_pane = self.center.last_pane();
 4455        window.focus(&last_pane.focus_handle(cx), cx);
 4456    }
 4457
 4458    pub fn activate_pane_in_direction(
 4459        &mut self,
 4460        direction: SplitDirection,
 4461        window: &mut Window,
 4462        cx: &mut App,
 4463    ) {
 4464        use ActivateInDirectionTarget as Target;
 4465        enum Origin {
 4466            LeftDock,
 4467            RightDock,
 4468            BottomDock,
 4469            Center,
 4470        }
 4471
 4472        let origin: Origin = [
 4473            (&self.left_dock, Origin::LeftDock),
 4474            (&self.right_dock, Origin::RightDock),
 4475            (&self.bottom_dock, Origin::BottomDock),
 4476        ]
 4477        .into_iter()
 4478        .find_map(|(dock, origin)| {
 4479            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4480                Some(origin)
 4481            } else {
 4482                None
 4483            }
 4484        })
 4485        .unwrap_or(Origin::Center);
 4486
 4487        let get_last_active_pane = || {
 4488            let pane = self
 4489                .last_active_center_pane
 4490                .clone()
 4491                .unwrap_or_else(|| {
 4492                    self.panes
 4493                        .first()
 4494                        .expect("There must be an active pane")
 4495                        .downgrade()
 4496                })
 4497                .upgrade()?;
 4498            (pane.read(cx).items_len() != 0).then_some(pane)
 4499        };
 4500
 4501        let try_dock =
 4502            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4503
 4504        let target = match (origin, direction) {
 4505            // We're in the center, so we first try to go to a different pane,
 4506            // otherwise try to go to a dock.
 4507            (Origin::Center, direction) => {
 4508                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4509                    Some(Target::Pane(pane))
 4510                } else {
 4511                    match direction {
 4512                        SplitDirection::Up => None,
 4513                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4514                        SplitDirection::Left => try_dock(&self.left_dock),
 4515                        SplitDirection::Right => try_dock(&self.right_dock),
 4516                    }
 4517                }
 4518            }
 4519
 4520            (Origin::LeftDock, SplitDirection::Right) => {
 4521                if let Some(last_active_pane) = get_last_active_pane() {
 4522                    Some(Target::Pane(last_active_pane))
 4523                } else {
 4524                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4525                }
 4526            }
 4527
 4528            (Origin::LeftDock, SplitDirection::Down)
 4529            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4530
 4531            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4532            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4533            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4534
 4535            (Origin::RightDock, SplitDirection::Left) => {
 4536                if let Some(last_active_pane) = get_last_active_pane() {
 4537                    Some(Target::Pane(last_active_pane))
 4538                } else {
 4539                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4540                }
 4541            }
 4542
 4543            _ => None,
 4544        };
 4545
 4546        match target {
 4547            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4548                let pane = pane.read(cx);
 4549                if let Some(item) = pane.active_item() {
 4550                    item.item_focus_handle(cx).focus(window, cx);
 4551                } else {
 4552                    log::error!(
 4553                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4554                    );
 4555                }
 4556            }
 4557            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4558                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4559                window.defer(cx, move |window, cx| {
 4560                    let dock = dock.read(cx);
 4561                    if let Some(panel) = dock.active_panel() {
 4562                        panel.panel_focus_handle(cx).focus(window, cx);
 4563                    } else {
 4564                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4565                    }
 4566                })
 4567            }
 4568            None => {}
 4569        }
 4570    }
 4571
 4572    pub fn move_item_to_pane_in_direction(
 4573        &mut self,
 4574        action: &MoveItemToPaneInDirection,
 4575        window: &mut Window,
 4576        cx: &mut Context<Self>,
 4577    ) {
 4578        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4579            Some(destination) => destination,
 4580            None => {
 4581                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4582                    return;
 4583                }
 4584                let new_pane = self.add_pane(window, cx);
 4585                self.center
 4586                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4587                new_pane
 4588            }
 4589        };
 4590
 4591        if action.clone {
 4592            if self
 4593                .active_pane
 4594                .read(cx)
 4595                .active_item()
 4596                .is_some_and(|item| item.can_split(cx))
 4597            {
 4598                clone_active_item(
 4599                    self.database_id(),
 4600                    &self.active_pane,
 4601                    &destination,
 4602                    action.focus,
 4603                    window,
 4604                    cx,
 4605                );
 4606                return;
 4607            }
 4608        }
 4609        move_active_item(
 4610            &self.active_pane,
 4611            &destination,
 4612            action.focus,
 4613            true,
 4614            window,
 4615            cx,
 4616        );
 4617    }
 4618
 4619    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4620        self.center.bounding_box_for_pane(pane)
 4621    }
 4622
 4623    pub fn find_pane_in_direction(
 4624        &mut self,
 4625        direction: SplitDirection,
 4626        cx: &App,
 4627    ) -> Option<Entity<Pane>> {
 4628        self.center
 4629            .find_pane_in_direction(&self.active_pane, direction, cx)
 4630            .cloned()
 4631    }
 4632
 4633    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4634        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4635            self.center.swap(&self.active_pane, &to, cx);
 4636            cx.notify();
 4637        }
 4638    }
 4639
 4640    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4641        if self
 4642            .center
 4643            .move_to_border(&self.active_pane, direction, cx)
 4644            .unwrap()
 4645        {
 4646            cx.notify();
 4647        }
 4648    }
 4649
 4650    pub fn resize_pane(
 4651        &mut self,
 4652        axis: gpui::Axis,
 4653        amount: Pixels,
 4654        window: &mut Window,
 4655        cx: &mut Context<Self>,
 4656    ) {
 4657        let docks = self.all_docks();
 4658        let active_dock = docks
 4659            .into_iter()
 4660            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4661
 4662        if let Some(dock) = active_dock {
 4663            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4664                return;
 4665            };
 4666            match dock.read(cx).position() {
 4667                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4668                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4669                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4670            }
 4671        } else {
 4672            self.center
 4673                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4674        }
 4675        cx.notify();
 4676    }
 4677
 4678    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4679        self.center.reset_pane_sizes(cx);
 4680        cx.notify();
 4681    }
 4682
 4683    fn handle_pane_focused(
 4684        &mut self,
 4685        pane: Entity<Pane>,
 4686        window: &mut Window,
 4687        cx: &mut Context<Self>,
 4688    ) {
 4689        // This is explicitly hoisted out of the following check for pane identity as
 4690        // terminal panel panes are not registered as a center panes.
 4691        self.status_bar.update(cx, |status_bar, cx| {
 4692            status_bar.set_active_pane(&pane, window, cx);
 4693        });
 4694        if self.active_pane != pane {
 4695            self.set_active_pane(&pane, window, cx);
 4696        }
 4697
 4698        if self.last_active_center_pane.is_none() {
 4699            self.last_active_center_pane = Some(pane.downgrade());
 4700        }
 4701
 4702        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4703        // This prevents the dock from closing when focus events fire during window activation.
 4704        // We also preserve any dock whose active panel itself has focus — this covers
 4705        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4706        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4707            let dock_read = dock.read(cx);
 4708            if let Some(panel) = dock_read.active_panel() {
 4709                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4710                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4711                {
 4712                    return Some(dock_read.position());
 4713                }
 4714            }
 4715            None
 4716        });
 4717
 4718        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4719        if pane.read(cx).is_zoomed() {
 4720            self.zoomed = Some(pane.downgrade().into());
 4721        } else {
 4722            self.zoomed = None;
 4723        }
 4724        self.zoomed_position = None;
 4725        cx.emit(Event::ZoomChanged);
 4726        self.update_active_view_for_followers(window, cx);
 4727        pane.update(cx, |pane, _| {
 4728            pane.track_alternate_file_items();
 4729        });
 4730
 4731        cx.notify();
 4732    }
 4733
 4734    fn set_active_pane(
 4735        &mut self,
 4736        pane: &Entity<Pane>,
 4737        window: &mut Window,
 4738        cx: &mut Context<Self>,
 4739    ) {
 4740        self.active_pane = pane.clone();
 4741        self.active_item_path_changed(true, window, cx);
 4742        self.last_active_center_pane = Some(pane.downgrade());
 4743    }
 4744
 4745    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4746        self.update_active_view_for_followers(window, cx);
 4747    }
 4748
 4749    fn handle_pane_event(
 4750        &mut self,
 4751        pane: &Entity<Pane>,
 4752        event: &pane::Event,
 4753        window: &mut Window,
 4754        cx: &mut Context<Self>,
 4755    ) {
 4756        let mut serialize_workspace = true;
 4757        match event {
 4758            pane::Event::AddItem { item } => {
 4759                item.added_to_pane(self, pane.clone(), window, cx);
 4760                cx.emit(Event::ItemAdded {
 4761                    item: item.boxed_clone(),
 4762                });
 4763            }
 4764            pane::Event::Split { direction, mode } => {
 4765                match mode {
 4766                    SplitMode::ClonePane => {
 4767                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4768                            .detach();
 4769                    }
 4770                    SplitMode::EmptyPane => {
 4771                        self.split_pane(pane.clone(), *direction, window, cx);
 4772                    }
 4773                    SplitMode::MovePane => {
 4774                        self.split_and_move(pane.clone(), *direction, window, cx);
 4775                    }
 4776                };
 4777            }
 4778            pane::Event::JoinIntoNext => {
 4779                self.join_pane_into_next(pane.clone(), window, cx);
 4780            }
 4781            pane::Event::JoinAll => {
 4782                self.join_all_panes(window, cx);
 4783            }
 4784            pane::Event::Remove { focus_on_pane } => {
 4785                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4786            }
 4787            pane::Event::ActivateItem {
 4788                local,
 4789                focus_changed,
 4790            } => {
 4791                window.invalidate_character_coordinates();
 4792
 4793                pane.update(cx, |pane, _| {
 4794                    pane.track_alternate_file_items();
 4795                });
 4796                if *local {
 4797                    self.unfollow_in_pane(pane, window, cx);
 4798                }
 4799                serialize_workspace = *focus_changed || pane != self.active_pane();
 4800                if pane == self.active_pane() {
 4801                    self.active_item_path_changed(*focus_changed, window, cx);
 4802                    self.update_active_view_for_followers(window, cx);
 4803                } else if *local {
 4804                    self.set_active_pane(pane, window, cx);
 4805                }
 4806            }
 4807            pane::Event::UserSavedItem { item, save_intent } => {
 4808                cx.emit(Event::UserSavedItem {
 4809                    pane: pane.downgrade(),
 4810                    item: item.boxed_clone(),
 4811                    save_intent: *save_intent,
 4812                });
 4813                serialize_workspace = false;
 4814            }
 4815            pane::Event::ChangeItemTitle => {
 4816                if *pane == self.active_pane {
 4817                    self.active_item_path_changed(false, window, cx);
 4818                }
 4819                serialize_workspace = false;
 4820            }
 4821            pane::Event::RemovedItem { item } => {
 4822                cx.emit(Event::ActiveItemChanged);
 4823                self.update_window_edited(window, cx);
 4824                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4825                    && entry.get().entity_id() == pane.entity_id()
 4826                {
 4827                    entry.remove();
 4828                }
 4829                cx.emit(Event::ItemRemoved {
 4830                    item_id: item.item_id(),
 4831                });
 4832            }
 4833            pane::Event::Focus => {
 4834                window.invalidate_character_coordinates();
 4835                self.handle_pane_focused(pane.clone(), window, cx);
 4836            }
 4837            pane::Event::ZoomIn => {
 4838                if *pane == self.active_pane {
 4839                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4840                    if pane.read(cx).has_focus(window, cx) {
 4841                        self.zoomed = Some(pane.downgrade().into());
 4842                        self.zoomed_position = None;
 4843                        cx.emit(Event::ZoomChanged);
 4844                    }
 4845                    cx.notify();
 4846                }
 4847            }
 4848            pane::Event::ZoomOut => {
 4849                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4850                if self.zoomed_position.is_none() {
 4851                    self.zoomed = None;
 4852                    cx.emit(Event::ZoomChanged);
 4853                }
 4854                cx.notify();
 4855            }
 4856            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4857        }
 4858
 4859        if serialize_workspace {
 4860            self.serialize_workspace(window, cx);
 4861        }
 4862    }
 4863
 4864    pub fn unfollow_in_pane(
 4865        &mut self,
 4866        pane: &Entity<Pane>,
 4867        window: &mut Window,
 4868        cx: &mut Context<Workspace>,
 4869    ) -> Option<CollaboratorId> {
 4870        let leader_id = self.leader_for_pane(pane)?;
 4871        self.unfollow(leader_id, window, cx);
 4872        Some(leader_id)
 4873    }
 4874
 4875    pub fn split_pane(
 4876        &mut self,
 4877        pane_to_split: Entity<Pane>,
 4878        split_direction: SplitDirection,
 4879        window: &mut Window,
 4880        cx: &mut Context<Self>,
 4881    ) -> Entity<Pane> {
 4882        let new_pane = self.add_pane(window, cx);
 4883        self.center
 4884            .split(&pane_to_split, &new_pane, split_direction, cx);
 4885        cx.notify();
 4886        new_pane
 4887    }
 4888
 4889    pub fn split_and_move(
 4890        &mut self,
 4891        pane: Entity<Pane>,
 4892        direction: SplitDirection,
 4893        window: &mut Window,
 4894        cx: &mut Context<Self>,
 4895    ) {
 4896        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4897            return;
 4898        };
 4899        let new_pane = self.add_pane(window, cx);
 4900        new_pane.update(cx, |pane, cx| {
 4901            pane.add_item(item, true, true, None, window, cx)
 4902        });
 4903        self.center.split(&pane, &new_pane, direction, cx);
 4904        cx.notify();
 4905    }
 4906
 4907    pub fn split_and_clone(
 4908        &mut self,
 4909        pane: Entity<Pane>,
 4910        direction: SplitDirection,
 4911        window: &mut Window,
 4912        cx: &mut Context<Self>,
 4913    ) -> Task<Option<Entity<Pane>>> {
 4914        let Some(item) = pane.read(cx).active_item() else {
 4915            return Task::ready(None);
 4916        };
 4917        if !item.can_split(cx) {
 4918            return Task::ready(None);
 4919        }
 4920        let task = item.clone_on_split(self.database_id(), window, cx);
 4921        cx.spawn_in(window, async move |this, cx| {
 4922            if let Some(clone) = task.await {
 4923                this.update_in(cx, |this, window, cx| {
 4924                    let new_pane = this.add_pane(window, cx);
 4925                    let nav_history = pane.read(cx).fork_nav_history();
 4926                    new_pane.update(cx, |pane, cx| {
 4927                        pane.set_nav_history(nav_history, cx);
 4928                        pane.add_item(clone, true, true, None, window, cx)
 4929                    });
 4930                    this.center.split(&pane, &new_pane, direction, cx);
 4931                    cx.notify();
 4932                    new_pane
 4933                })
 4934                .ok()
 4935            } else {
 4936                None
 4937            }
 4938        })
 4939    }
 4940
 4941    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4942        let active_item = self.active_pane.read(cx).active_item();
 4943        for pane in &self.panes {
 4944            join_pane_into_active(&self.active_pane, pane, window, cx);
 4945        }
 4946        if let Some(active_item) = active_item {
 4947            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4948        }
 4949        cx.notify();
 4950    }
 4951
 4952    pub fn join_pane_into_next(
 4953        &mut self,
 4954        pane: Entity<Pane>,
 4955        window: &mut Window,
 4956        cx: &mut Context<Self>,
 4957    ) {
 4958        let next_pane = self
 4959            .find_pane_in_direction(SplitDirection::Right, cx)
 4960            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4961            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4962            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4963        let Some(next_pane) = next_pane else {
 4964            return;
 4965        };
 4966        move_all_items(&pane, &next_pane, window, cx);
 4967        cx.notify();
 4968    }
 4969
 4970    fn remove_pane(
 4971        &mut self,
 4972        pane: Entity<Pane>,
 4973        focus_on: Option<Entity<Pane>>,
 4974        window: &mut Window,
 4975        cx: &mut Context<Self>,
 4976    ) {
 4977        if self.center.remove(&pane, cx).unwrap() {
 4978            self.force_remove_pane(&pane, &focus_on, window, cx);
 4979            self.unfollow_in_pane(&pane, window, cx);
 4980            self.last_leaders_by_pane.remove(&pane.downgrade());
 4981            for removed_item in pane.read(cx).items() {
 4982                self.panes_by_item.remove(&removed_item.item_id());
 4983            }
 4984
 4985            cx.notify();
 4986        } else {
 4987            self.active_item_path_changed(true, window, cx);
 4988        }
 4989        cx.emit(Event::PaneRemoved);
 4990    }
 4991
 4992    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4993        &mut self.panes
 4994    }
 4995
 4996    pub fn panes(&self) -> &[Entity<Pane>] {
 4997        &self.panes
 4998    }
 4999
 5000    pub fn active_pane(&self) -> &Entity<Pane> {
 5001        &self.active_pane
 5002    }
 5003
 5004    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5005        for dock in self.all_docks() {
 5006            if dock.focus_handle(cx).contains_focused(window, cx)
 5007                && let Some(pane) = dock
 5008                    .read(cx)
 5009                    .active_panel()
 5010                    .and_then(|panel| panel.pane(cx))
 5011            {
 5012                return pane;
 5013            }
 5014        }
 5015        self.active_pane().clone()
 5016    }
 5017
 5018    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5019        self.find_pane_in_direction(SplitDirection::Right, cx)
 5020            .unwrap_or_else(|| {
 5021                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5022            })
 5023    }
 5024
 5025    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5026        self.pane_for_item_id(handle.item_id())
 5027    }
 5028
 5029    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5030        let weak_pane = self.panes_by_item.get(&item_id)?;
 5031        weak_pane.upgrade()
 5032    }
 5033
 5034    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5035        self.panes
 5036            .iter()
 5037            .find(|pane| pane.entity_id() == entity_id)
 5038            .cloned()
 5039    }
 5040
 5041    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5042        self.follower_states.retain(|leader_id, state| {
 5043            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5044                for item in state.items_by_leader_view_id.values() {
 5045                    item.view.set_leader_id(None, window, cx);
 5046                }
 5047                false
 5048            } else {
 5049                true
 5050            }
 5051        });
 5052        cx.notify();
 5053    }
 5054
 5055    pub fn start_following(
 5056        &mut self,
 5057        leader_id: impl Into<CollaboratorId>,
 5058        window: &mut Window,
 5059        cx: &mut Context<Self>,
 5060    ) -> Option<Task<Result<()>>> {
 5061        let leader_id = leader_id.into();
 5062        let pane = self.active_pane().clone();
 5063
 5064        self.last_leaders_by_pane
 5065            .insert(pane.downgrade(), leader_id);
 5066        self.unfollow(leader_id, window, cx);
 5067        self.unfollow_in_pane(&pane, window, cx);
 5068        self.follower_states.insert(
 5069            leader_id,
 5070            FollowerState {
 5071                center_pane: pane.clone(),
 5072                dock_pane: None,
 5073                active_view_id: None,
 5074                items_by_leader_view_id: Default::default(),
 5075            },
 5076        );
 5077        cx.notify();
 5078
 5079        match leader_id {
 5080            CollaboratorId::PeerId(leader_peer_id) => {
 5081                let room_id = self.active_call()?.room_id(cx)?;
 5082                let project_id = self.project.read(cx).remote_id();
 5083                let request = self.app_state.client.request(proto::Follow {
 5084                    room_id,
 5085                    project_id,
 5086                    leader_id: Some(leader_peer_id),
 5087                });
 5088
 5089                Some(cx.spawn_in(window, async move |this, cx| {
 5090                    let response = request.await?;
 5091                    this.update(cx, |this, _| {
 5092                        let state = this
 5093                            .follower_states
 5094                            .get_mut(&leader_id)
 5095                            .context("following interrupted")?;
 5096                        state.active_view_id = response
 5097                            .active_view
 5098                            .as_ref()
 5099                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5100                        anyhow::Ok(())
 5101                    })??;
 5102                    if let Some(view) = response.active_view {
 5103                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5104                    }
 5105                    this.update_in(cx, |this, window, cx| {
 5106                        this.leader_updated(leader_id, window, cx)
 5107                    })?;
 5108                    Ok(())
 5109                }))
 5110            }
 5111            CollaboratorId::Agent => {
 5112                self.leader_updated(leader_id, window, cx)?;
 5113                Some(Task::ready(Ok(())))
 5114            }
 5115        }
 5116    }
 5117
 5118    pub fn follow_next_collaborator(
 5119        &mut self,
 5120        _: &FollowNextCollaborator,
 5121        window: &mut Window,
 5122        cx: &mut Context<Self>,
 5123    ) {
 5124        let collaborators = self.project.read(cx).collaborators();
 5125        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5126            let mut collaborators = collaborators.keys().copied();
 5127            for peer_id in collaborators.by_ref() {
 5128                if CollaboratorId::PeerId(peer_id) == leader_id {
 5129                    break;
 5130                }
 5131            }
 5132            collaborators.next().map(CollaboratorId::PeerId)
 5133        } else if let Some(last_leader_id) =
 5134            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5135        {
 5136            match last_leader_id {
 5137                CollaboratorId::PeerId(peer_id) => {
 5138                    if collaborators.contains_key(peer_id) {
 5139                        Some(*last_leader_id)
 5140                    } else {
 5141                        None
 5142                    }
 5143                }
 5144                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5145            }
 5146        } else {
 5147            None
 5148        };
 5149
 5150        let pane = self.active_pane.clone();
 5151        let Some(leader_id) = next_leader_id.or_else(|| {
 5152            Some(CollaboratorId::PeerId(
 5153                collaborators.keys().copied().next()?,
 5154            ))
 5155        }) else {
 5156            return;
 5157        };
 5158        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5159            return;
 5160        }
 5161        if let Some(task) = self.start_following(leader_id, window, cx) {
 5162            task.detach_and_log_err(cx)
 5163        }
 5164    }
 5165
 5166    pub fn follow(
 5167        &mut self,
 5168        leader_id: impl Into<CollaboratorId>,
 5169        window: &mut Window,
 5170        cx: &mut Context<Self>,
 5171    ) {
 5172        let leader_id = leader_id.into();
 5173
 5174        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5175            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5176                return;
 5177            };
 5178            let Some(remote_participant) =
 5179                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5180            else {
 5181                return;
 5182            };
 5183
 5184            let project = self.project.read(cx);
 5185
 5186            let other_project_id = match remote_participant.location {
 5187                ParticipantLocation::External => None,
 5188                ParticipantLocation::UnsharedProject => None,
 5189                ParticipantLocation::SharedProject { project_id } => {
 5190                    if Some(project_id) == project.remote_id() {
 5191                        None
 5192                    } else {
 5193                        Some(project_id)
 5194                    }
 5195                }
 5196            };
 5197
 5198            // if they are active in another project, follow there.
 5199            if let Some(project_id) = other_project_id {
 5200                let app_state = self.app_state.clone();
 5201                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5202                    .detach_and_log_err(cx);
 5203            }
 5204        }
 5205
 5206        // if you're already following, find the right pane and focus it.
 5207        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5208            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5209
 5210            return;
 5211        }
 5212
 5213        // Otherwise, follow.
 5214        if let Some(task) = self.start_following(leader_id, window, cx) {
 5215            task.detach_and_log_err(cx)
 5216        }
 5217    }
 5218
 5219    pub fn unfollow(
 5220        &mut self,
 5221        leader_id: impl Into<CollaboratorId>,
 5222        window: &mut Window,
 5223        cx: &mut Context<Self>,
 5224    ) -> Option<()> {
 5225        cx.notify();
 5226
 5227        let leader_id = leader_id.into();
 5228        let state = self.follower_states.remove(&leader_id)?;
 5229        for (_, item) in state.items_by_leader_view_id {
 5230            item.view.set_leader_id(None, window, cx);
 5231        }
 5232
 5233        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5234            let project_id = self.project.read(cx).remote_id();
 5235            let room_id = self.active_call()?.room_id(cx)?;
 5236            self.app_state
 5237                .client
 5238                .send(proto::Unfollow {
 5239                    room_id,
 5240                    project_id,
 5241                    leader_id: Some(leader_peer_id),
 5242                })
 5243                .log_err();
 5244        }
 5245
 5246        Some(())
 5247    }
 5248
 5249    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5250        self.follower_states.contains_key(&id.into())
 5251    }
 5252
 5253    fn active_item_path_changed(
 5254        &mut self,
 5255        focus_changed: bool,
 5256        window: &mut Window,
 5257        cx: &mut Context<Self>,
 5258    ) {
 5259        cx.emit(Event::ActiveItemChanged);
 5260        let active_entry = self.active_project_path(cx);
 5261        self.project.update(cx, |project, cx| {
 5262            project.set_active_path(active_entry.clone(), cx)
 5263        });
 5264
 5265        if focus_changed && let Some(project_path) = &active_entry {
 5266            let git_store_entity = self.project.read(cx).git_store().clone();
 5267            git_store_entity.update(cx, |git_store, cx| {
 5268                git_store.set_active_repo_for_path(project_path, cx);
 5269            });
 5270        }
 5271
 5272        self.update_window_title(window, cx);
 5273    }
 5274
 5275    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5276        let project = self.project().read(cx);
 5277        let mut title = String::new();
 5278
 5279        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5280            let name = {
 5281                let settings_location = SettingsLocation {
 5282                    worktree_id: worktree.read(cx).id(),
 5283                    path: RelPath::empty(),
 5284                };
 5285
 5286                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5287                match &settings.project_name {
 5288                    Some(name) => name.as_str(),
 5289                    None => worktree.read(cx).root_name_str(),
 5290                }
 5291            };
 5292            if i > 0 {
 5293                title.push_str(", ");
 5294            }
 5295            title.push_str(name);
 5296        }
 5297
 5298        if title.is_empty() {
 5299            title = "empty project".to_string();
 5300        }
 5301
 5302        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5303            let filename = path.path.file_name().or_else(|| {
 5304                Some(
 5305                    project
 5306                        .worktree_for_id(path.worktree_id, cx)?
 5307                        .read(cx)
 5308                        .root_name_str(),
 5309                )
 5310            });
 5311
 5312            if let Some(filename) = filename {
 5313                title.push_str("");
 5314                title.push_str(filename.as_ref());
 5315            }
 5316        }
 5317
 5318        if project.is_via_collab() {
 5319            title.push_str("");
 5320        } else if project.is_shared() {
 5321            title.push_str("");
 5322        }
 5323
 5324        if let Some(last_title) = self.last_window_title.as_ref()
 5325            && &title == last_title
 5326        {
 5327            return;
 5328        }
 5329        window.set_window_title(&title);
 5330        SystemWindowTabController::update_tab_title(
 5331            cx,
 5332            window.window_handle().window_id(),
 5333            SharedString::from(&title),
 5334        );
 5335        self.last_window_title = Some(title);
 5336    }
 5337
 5338    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5339        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5340        if is_edited != self.window_edited {
 5341            self.window_edited = is_edited;
 5342            window.set_window_edited(self.window_edited)
 5343        }
 5344    }
 5345
 5346    fn update_item_dirty_state(
 5347        &mut self,
 5348        item: &dyn ItemHandle,
 5349        window: &mut Window,
 5350        cx: &mut App,
 5351    ) {
 5352        let is_dirty = item.is_dirty(cx);
 5353        let item_id = item.item_id();
 5354        let was_dirty = self.dirty_items.contains_key(&item_id);
 5355        if is_dirty == was_dirty {
 5356            return;
 5357        }
 5358        if was_dirty {
 5359            self.dirty_items.remove(&item_id);
 5360            self.update_window_edited(window, cx);
 5361            return;
 5362        }
 5363
 5364        let workspace = self.weak_handle();
 5365        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5366            return;
 5367        };
 5368        let on_release_callback = Box::new(move |cx: &mut App| {
 5369            window_handle
 5370                .update(cx, |_, window, cx| {
 5371                    workspace
 5372                        .update(cx, |workspace, cx| {
 5373                            workspace.dirty_items.remove(&item_id);
 5374                            workspace.update_window_edited(window, cx)
 5375                        })
 5376                        .ok();
 5377                })
 5378                .ok();
 5379        });
 5380
 5381        let s = item.on_release(cx, on_release_callback);
 5382        self.dirty_items.insert(item_id, s);
 5383        self.update_window_edited(window, cx);
 5384    }
 5385
 5386    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5387        if self.notifications.is_empty() {
 5388            None
 5389        } else {
 5390            Some(
 5391                div()
 5392                    .absolute()
 5393                    .right_3()
 5394                    .bottom_3()
 5395                    .w_112()
 5396                    .h_full()
 5397                    .flex()
 5398                    .flex_col()
 5399                    .justify_end()
 5400                    .gap_2()
 5401                    .children(
 5402                        self.notifications
 5403                            .iter()
 5404                            .map(|(_, notification)| notification.clone().into_any()),
 5405                    ),
 5406            )
 5407        }
 5408    }
 5409
 5410    // RPC handlers
 5411
 5412    fn active_view_for_follower(
 5413        &self,
 5414        follower_project_id: Option<u64>,
 5415        window: &mut Window,
 5416        cx: &mut Context<Self>,
 5417    ) -> Option<proto::View> {
 5418        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5419        let item = item?;
 5420        let leader_id = self
 5421            .pane_for(&*item)
 5422            .and_then(|pane| self.leader_for_pane(&pane));
 5423        let leader_peer_id = match leader_id {
 5424            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5425            Some(CollaboratorId::Agent) | None => None,
 5426        };
 5427
 5428        let item_handle = item.to_followable_item_handle(cx)?;
 5429        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5430        let variant = item_handle.to_state_proto(window, cx)?;
 5431
 5432        if item_handle.is_project_item(window, cx)
 5433            && (follower_project_id.is_none()
 5434                || follower_project_id != self.project.read(cx).remote_id())
 5435        {
 5436            return None;
 5437        }
 5438
 5439        Some(proto::View {
 5440            id: id.to_proto(),
 5441            leader_id: leader_peer_id,
 5442            variant: Some(variant),
 5443            panel_id: panel_id.map(|id| id as i32),
 5444        })
 5445    }
 5446
 5447    fn handle_follow(
 5448        &mut self,
 5449        follower_project_id: Option<u64>,
 5450        window: &mut Window,
 5451        cx: &mut Context<Self>,
 5452    ) -> proto::FollowResponse {
 5453        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5454
 5455        cx.notify();
 5456        proto::FollowResponse {
 5457            views: active_view.iter().cloned().collect(),
 5458            active_view,
 5459        }
 5460    }
 5461
 5462    fn handle_update_followers(
 5463        &mut self,
 5464        leader_id: PeerId,
 5465        message: proto::UpdateFollowers,
 5466        _window: &mut Window,
 5467        _cx: &mut Context<Self>,
 5468    ) {
 5469        self.leader_updates_tx
 5470            .unbounded_send((leader_id, message))
 5471            .ok();
 5472    }
 5473
 5474    async fn process_leader_update(
 5475        this: &WeakEntity<Self>,
 5476        leader_id: PeerId,
 5477        update: proto::UpdateFollowers,
 5478        cx: &mut AsyncWindowContext,
 5479    ) -> Result<()> {
 5480        match update.variant.context("invalid update")? {
 5481            proto::update_followers::Variant::CreateView(view) => {
 5482                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5483                let should_add_view = this.update(cx, |this, _| {
 5484                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5485                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5486                    } else {
 5487                        anyhow::Ok(false)
 5488                    }
 5489                })??;
 5490
 5491                if should_add_view {
 5492                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5493                }
 5494            }
 5495            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5496                let should_add_view = this.update(cx, |this, _| {
 5497                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5498                        state.active_view_id = update_active_view
 5499                            .view
 5500                            .as_ref()
 5501                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5502
 5503                        if state.active_view_id.is_some_and(|view_id| {
 5504                            !state.items_by_leader_view_id.contains_key(&view_id)
 5505                        }) {
 5506                            anyhow::Ok(true)
 5507                        } else {
 5508                            anyhow::Ok(false)
 5509                        }
 5510                    } else {
 5511                        anyhow::Ok(false)
 5512                    }
 5513                })??;
 5514
 5515                if should_add_view && let Some(view) = update_active_view.view {
 5516                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5517                }
 5518            }
 5519            proto::update_followers::Variant::UpdateView(update_view) => {
 5520                let variant = update_view.variant.context("missing update view variant")?;
 5521                let id = update_view.id.context("missing update view id")?;
 5522                let mut tasks = Vec::new();
 5523                this.update_in(cx, |this, window, cx| {
 5524                    let project = this.project.clone();
 5525                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5526                        let view_id = ViewId::from_proto(id.clone())?;
 5527                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5528                            tasks.push(item.view.apply_update_proto(
 5529                                &project,
 5530                                variant.clone(),
 5531                                window,
 5532                                cx,
 5533                            ));
 5534                        }
 5535                    }
 5536                    anyhow::Ok(())
 5537                })??;
 5538                try_join_all(tasks).await.log_err();
 5539            }
 5540        }
 5541        this.update_in(cx, |this, window, cx| {
 5542            this.leader_updated(leader_id, window, cx)
 5543        })?;
 5544        Ok(())
 5545    }
 5546
 5547    async fn add_view_from_leader(
 5548        this: WeakEntity<Self>,
 5549        leader_id: PeerId,
 5550        view: &proto::View,
 5551        cx: &mut AsyncWindowContext,
 5552    ) -> Result<()> {
 5553        let this = this.upgrade().context("workspace dropped")?;
 5554
 5555        let Some(id) = view.id.clone() else {
 5556            anyhow::bail!("no id for view");
 5557        };
 5558        let id = ViewId::from_proto(id)?;
 5559        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5560
 5561        let pane = this.update(cx, |this, _cx| {
 5562            let state = this
 5563                .follower_states
 5564                .get(&leader_id.into())
 5565                .context("stopped following")?;
 5566            anyhow::Ok(state.pane().clone())
 5567        })?;
 5568        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5569            let client = this.read(cx).client().clone();
 5570            pane.items().find_map(|item| {
 5571                let item = item.to_followable_item_handle(cx)?;
 5572                if item.remote_id(&client, window, cx) == Some(id) {
 5573                    Some(item)
 5574                } else {
 5575                    None
 5576                }
 5577            })
 5578        })?;
 5579        let item = if let Some(existing_item) = existing_item {
 5580            existing_item
 5581        } else {
 5582            let variant = view.variant.clone();
 5583            anyhow::ensure!(variant.is_some(), "missing view variant");
 5584
 5585            let task = cx.update(|window, cx| {
 5586                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5587            })?;
 5588
 5589            let Some(task) = task else {
 5590                anyhow::bail!(
 5591                    "failed to construct view from leader (maybe from a different version of zed?)"
 5592                );
 5593            };
 5594
 5595            let mut new_item = task.await?;
 5596            pane.update_in(cx, |pane, window, cx| {
 5597                let mut item_to_remove = None;
 5598                for (ix, item) in pane.items().enumerate() {
 5599                    if let Some(item) = item.to_followable_item_handle(cx) {
 5600                        match new_item.dedup(item.as_ref(), window, cx) {
 5601                            Some(item::Dedup::KeepExisting) => {
 5602                                new_item =
 5603                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5604                                break;
 5605                            }
 5606                            Some(item::Dedup::ReplaceExisting) => {
 5607                                item_to_remove = Some((ix, item.item_id()));
 5608                                break;
 5609                            }
 5610                            None => {}
 5611                        }
 5612                    }
 5613                }
 5614
 5615                if let Some((ix, id)) = item_to_remove {
 5616                    pane.remove_item(id, false, false, window, cx);
 5617                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5618                }
 5619            })?;
 5620
 5621            new_item
 5622        };
 5623
 5624        this.update_in(cx, |this, window, cx| {
 5625            let state = this.follower_states.get_mut(&leader_id.into())?;
 5626            item.set_leader_id(Some(leader_id.into()), window, cx);
 5627            state.items_by_leader_view_id.insert(
 5628                id,
 5629                FollowerView {
 5630                    view: item,
 5631                    location: panel_id,
 5632                },
 5633            );
 5634
 5635            Some(())
 5636        })
 5637        .context("no follower state")?;
 5638
 5639        Ok(())
 5640    }
 5641
 5642    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5643        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5644            return;
 5645        };
 5646
 5647        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5648            let buffer_entity_id = agent_location.buffer.entity_id();
 5649            let view_id = ViewId {
 5650                creator: CollaboratorId::Agent,
 5651                id: buffer_entity_id.as_u64(),
 5652            };
 5653            follower_state.active_view_id = Some(view_id);
 5654
 5655            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5656                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5657                hash_map::Entry::Vacant(entry) => {
 5658                    let existing_view =
 5659                        follower_state
 5660                            .center_pane
 5661                            .read(cx)
 5662                            .items()
 5663                            .find_map(|item| {
 5664                                let item = item.to_followable_item_handle(cx)?;
 5665                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5666                                    && item.project_item_model_ids(cx).as_slice()
 5667                                        == [buffer_entity_id]
 5668                                {
 5669                                    Some(item)
 5670                                } else {
 5671                                    None
 5672                                }
 5673                            });
 5674                    let view = existing_view.or_else(|| {
 5675                        agent_location.buffer.upgrade().and_then(|buffer| {
 5676                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5677                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5678                            })?
 5679                            .to_followable_item_handle(cx)
 5680                        })
 5681                    });
 5682
 5683                    view.map(|view| {
 5684                        entry.insert(FollowerView {
 5685                            view,
 5686                            location: None,
 5687                        })
 5688                    })
 5689                }
 5690            };
 5691
 5692            if let Some(item) = item {
 5693                item.view
 5694                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5695                item.view
 5696                    .update_agent_location(agent_location.position, window, cx);
 5697            }
 5698        } else {
 5699            follower_state.active_view_id = None;
 5700        }
 5701
 5702        self.leader_updated(CollaboratorId::Agent, window, cx);
 5703    }
 5704
 5705    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5706        let mut is_project_item = true;
 5707        let mut update = proto::UpdateActiveView::default();
 5708        if window.is_window_active() {
 5709            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5710
 5711            if let Some(item) = active_item
 5712                && item.item_focus_handle(cx).contains_focused(window, cx)
 5713            {
 5714                let leader_id = self
 5715                    .pane_for(&*item)
 5716                    .and_then(|pane| self.leader_for_pane(&pane));
 5717                let leader_peer_id = match leader_id {
 5718                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5719                    Some(CollaboratorId::Agent) | None => None,
 5720                };
 5721
 5722                if let Some(item) = item.to_followable_item_handle(cx) {
 5723                    let id = item
 5724                        .remote_id(&self.app_state.client, window, cx)
 5725                        .map(|id| id.to_proto());
 5726
 5727                    if let Some(id) = id
 5728                        && let Some(variant) = item.to_state_proto(window, cx)
 5729                    {
 5730                        let view = Some(proto::View {
 5731                            id,
 5732                            leader_id: leader_peer_id,
 5733                            variant: Some(variant),
 5734                            panel_id: panel_id.map(|id| id as i32),
 5735                        });
 5736
 5737                        is_project_item = item.is_project_item(window, cx);
 5738                        update = proto::UpdateActiveView { view };
 5739                    };
 5740                }
 5741            }
 5742        }
 5743
 5744        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5745        if active_view_id != self.last_active_view_id.as_ref() {
 5746            self.last_active_view_id = active_view_id.cloned();
 5747            self.update_followers(
 5748                is_project_item,
 5749                proto::update_followers::Variant::UpdateActiveView(update),
 5750                window,
 5751                cx,
 5752            );
 5753        }
 5754    }
 5755
 5756    fn active_item_for_followers(
 5757        &self,
 5758        window: &mut Window,
 5759        cx: &mut App,
 5760    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5761        let mut active_item = None;
 5762        let mut panel_id = None;
 5763        for dock in self.all_docks() {
 5764            if dock.focus_handle(cx).contains_focused(window, cx)
 5765                && let Some(panel) = dock.read(cx).active_panel()
 5766                && let Some(pane) = panel.pane(cx)
 5767                && let Some(item) = pane.read(cx).active_item()
 5768            {
 5769                active_item = Some(item);
 5770                panel_id = panel.remote_id();
 5771                break;
 5772            }
 5773        }
 5774
 5775        if active_item.is_none() {
 5776            active_item = self.active_pane().read(cx).active_item();
 5777        }
 5778        (active_item, panel_id)
 5779    }
 5780
 5781    fn update_followers(
 5782        &self,
 5783        project_only: bool,
 5784        update: proto::update_followers::Variant,
 5785        _: &mut Window,
 5786        cx: &mut App,
 5787    ) -> Option<()> {
 5788        // If this update only applies to for followers in the current project,
 5789        // then skip it unless this project is shared. If it applies to all
 5790        // followers, regardless of project, then set `project_id` to none,
 5791        // indicating that it goes to all followers.
 5792        let project_id = if project_only {
 5793            Some(self.project.read(cx).remote_id()?)
 5794        } else {
 5795            None
 5796        };
 5797        self.app_state().workspace_store.update(cx, |store, cx| {
 5798            store.update_followers(project_id, update, cx)
 5799        })
 5800    }
 5801
 5802    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5803        self.follower_states.iter().find_map(|(leader_id, state)| {
 5804            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5805                Some(*leader_id)
 5806            } else {
 5807                None
 5808            }
 5809        })
 5810    }
 5811
 5812    fn leader_updated(
 5813        &mut self,
 5814        leader_id: impl Into<CollaboratorId>,
 5815        window: &mut Window,
 5816        cx: &mut Context<Self>,
 5817    ) -> Option<Box<dyn ItemHandle>> {
 5818        cx.notify();
 5819
 5820        let leader_id = leader_id.into();
 5821        let (panel_id, item) = match leader_id {
 5822            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5823            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5824        };
 5825
 5826        let state = self.follower_states.get(&leader_id)?;
 5827        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5828        let pane;
 5829        if let Some(panel_id) = panel_id {
 5830            pane = self
 5831                .activate_panel_for_proto_id(panel_id, window, cx)?
 5832                .pane(cx)?;
 5833            let state = self.follower_states.get_mut(&leader_id)?;
 5834            state.dock_pane = Some(pane.clone());
 5835        } else {
 5836            pane = state.center_pane.clone();
 5837            let state = self.follower_states.get_mut(&leader_id)?;
 5838            if let Some(dock_pane) = state.dock_pane.take() {
 5839                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5840            }
 5841        }
 5842
 5843        pane.update(cx, |pane, cx| {
 5844            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5845            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5846                pane.activate_item(index, false, false, window, cx);
 5847            } else {
 5848                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5849            }
 5850
 5851            if focus_active_item {
 5852                pane.focus_active_item(window, cx)
 5853            }
 5854        });
 5855
 5856        Some(item)
 5857    }
 5858
 5859    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5860        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5861        let active_view_id = state.active_view_id?;
 5862        Some(
 5863            state
 5864                .items_by_leader_view_id
 5865                .get(&active_view_id)?
 5866                .view
 5867                .boxed_clone(),
 5868        )
 5869    }
 5870
 5871    fn active_item_for_peer(
 5872        &self,
 5873        peer_id: PeerId,
 5874        window: &mut Window,
 5875        cx: &mut Context<Self>,
 5876    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5877        let call = self.active_call()?;
 5878        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 5879        let leader_in_this_app;
 5880        let leader_in_this_project;
 5881        match participant.location {
 5882            ParticipantLocation::SharedProject { project_id } => {
 5883                leader_in_this_app = true;
 5884                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5885            }
 5886            ParticipantLocation::UnsharedProject => {
 5887                leader_in_this_app = true;
 5888                leader_in_this_project = false;
 5889            }
 5890            ParticipantLocation::External => {
 5891                leader_in_this_app = false;
 5892                leader_in_this_project = false;
 5893            }
 5894        };
 5895        let state = self.follower_states.get(&peer_id.into())?;
 5896        let mut item_to_activate = None;
 5897        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5898            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5899                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5900            {
 5901                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5902            }
 5903        } else if let Some(shared_screen) =
 5904            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5905        {
 5906            item_to_activate = Some((None, Box::new(shared_screen)));
 5907        }
 5908        item_to_activate
 5909    }
 5910
 5911    fn shared_screen_for_peer(
 5912        &self,
 5913        peer_id: PeerId,
 5914        pane: &Entity<Pane>,
 5915        window: &mut Window,
 5916        cx: &mut App,
 5917    ) -> Option<Entity<SharedScreen>> {
 5918        self.active_call()?
 5919            .create_shared_screen(peer_id, pane, window, cx)
 5920    }
 5921
 5922    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5923        if window.is_window_active() {
 5924            self.update_active_view_for_followers(window, cx);
 5925
 5926            if let Some(database_id) = self.database_id {
 5927                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5928                    .detach();
 5929            }
 5930        } else {
 5931            for pane in &self.panes {
 5932                pane.update(cx, |pane, cx| {
 5933                    if let Some(item) = pane.active_item() {
 5934                        item.workspace_deactivated(window, cx);
 5935                    }
 5936                    for item in pane.items() {
 5937                        if matches!(
 5938                            item.workspace_settings(cx).autosave,
 5939                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5940                        ) {
 5941                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5942                                .detach_and_log_err(cx);
 5943                        }
 5944                    }
 5945                });
 5946            }
 5947        }
 5948    }
 5949
 5950    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 5951        self.active_call.as_ref().map(|(call, _)| &*call.0)
 5952    }
 5953
 5954    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 5955        self.active_call.as_ref().map(|(call, _)| call.clone())
 5956    }
 5957
 5958    fn on_active_call_event(
 5959        &mut self,
 5960        event: &ActiveCallEvent,
 5961        window: &mut Window,
 5962        cx: &mut Context<Self>,
 5963    ) {
 5964        match event {
 5965            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 5966            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 5967                self.leader_updated(participant_id, window, cx);
 5968            }
 5969        }
 5970    }
 5971
 5972    pub fn database_id(&self) -> Option<WorkspaceId> {
 5973        self.database_id
 5974    }
 5975
 5976    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 5977        self.database_id = Some(id);
 5978    }
 5979
 5980    pub fn session_id(&self) -> Option<String> {
 5981        self.session_id.clone()
 5982    }
 5983
 5984    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5985        let Some(display) = window.display(cx) else {
 5986            return Task::ready(());
 5987        };
 5988        let Ok(display_uuid) = display.uuid() else {
 5989            return Task::ready(());
 5990        };
 5991
 5992        let window_bounds = window.inner_window_bounds();
 5993        let database_id = self.database_id;
 5994        let has_paths = !self.root_paths(cx).is_empty();
 5995
 5996        cx.background_executor().spawn(async move {
 5997            if !has_paths {
 5998                persistence::write_default_window_bounds(window_bounds, display_uuid)
 5999                    .await
 6000                    .log_err();
 6001            }
 6002            if let Some(database_id) = database_id {
 6003                DB.set_window_open_status(
 6004                    database_id,
 6005                    SerializedWindowBounds(window_bounds),
 6006                    display_uuid,
 6007                )
 6008                .await
 6009                .log_err();
 6010            } else {
 6011                persistence::write_default_window_bounds(window_bounds, display_uuid)
 6012                    .await
 6013                    .log_err();
 6014            }
 6015        })
 6016    }
 6017
 6018    /// Bypass the 200ms serialization throttle and write workspace state to
 6019    /// the DB immediately. Returns a task the caller can await to ensure the
 6020    /// write completes. Used by the quit handler so the most recent state
 6021    /// isn't lost to a pending throttle timer when the process exits.
 6022    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6023        self._schedule_serialize_workspace.take();
 6024        self._serialize_workspace_task.take();
 6025        self.bounds_save_task_queued.take();
 6026
 6027        let bounds_task = self.save_window_bounds(window, cx);
 6028        let serialize_task = self.serialize_workspace_internal(window, cx);
 6029        cx.spawn(async move |_| {
 6030            bounds_task.await;
 6031            serialize_task.await;
 6032        })
 6033    }
 6034
 6035    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6036        let project = self.project().read(cx);
 6037        project
 6038            .visible_worktrees(cx)
 6039            .map(|worktree| worktree.read(cx).abs_path())
 6040            .collect::<Vec<_>>()
 6041    }
 6042
 6043    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6044        match member {
 6045            Member::Axis(PaneAxis { members, .. }) => {
 6046                for child in members.iter() {
 6047                    self.remove_panes(child.clone(), window, cx)
 6048                }
 6049            }
 6050            Member::Pane(pane) => {
 6051                self.force_remove_pane(&pane, &None, window, cx);
 6052            }
 6053        }
 6054    }
 6055
 6056    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6057        self.session_id.take();
 6058        self.serialize_workspace_internal(window, cx)
 6059    }
 6060
 6061    fn force_remove_pane(
 6062        &mut self,
 6063        pane: &Entity<Pane>,
 6064        focus_on: &Option<Entity<Pane>>,
 6065        window: &mut Window,
 6066        cx: &mut Context<Workspace>,
 6067    ) {
 6068        self.panes.retain(|p| p != pane);
 6069        if let Some(focus_on) = focus_on {
 6070            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6071        } else if self.active_pane() == pane {
 6072            self.panes
 6073                .last()
 6074                .unwrap()
 6075                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6076        }
 6077        if self.last_active_center_pane == Some(pane.downgrade()) {
 6078            self.last_active_center_pane = None;
 6079        }
 6080        cx.notify();
 6081    }
 6082
 6083    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6084        if self._schedule_serialize_workspace.is_none() {
 6085            self._schedule_serialize_workspace =
 6086                Some(cx.spawn_in(window, async move |this, cx| {
 6087                    cx.background_executor()
 6088                        .timer(SERIALIZATION_THROTTLE_TIME)
 6089                        .await;
 6090                    this.update_in(cx, |this, window, cx| {
 6091                        this._serialize_workspace_task =
 6092                            Some(this.serialize_workspace_internal(window, cx));
 6093                        this._schedule_serialize_workspace.take();
 6094                    })
 6095                    .log_err();
 6096                }));
 6097        }
 6098    }
 6099
 6100    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6101        let Some(database_id) = self.database_id() else {
 6102            return Task::ready(());
 6103        };
 6104
 6105        fn serialize_pane_handle(
 6106            pane_handle: &Entity<Pane>,
 6107            window: &mut Window,
 6108            cx: &mut App,
 6109        ) -> SerializedPane {
 6110            let (items, active, pinned_count) = {
 6111                let pane = pane_handle.read(cx);
 6112                let active_item_id = pane.active_item().map(|item| item.item_id());
 6113                (
 6114                    pane.items()
 6115                        .filter_map(|handle| {
 6116                            let handle = handle.to_serializable_item_handle(cx)?;
 6117
 6118                            Some(SerializedItem {
 6119                                kind: Arc::from(handle.serialized_item_kind()),
 6120                                item_id: handle.item_id().as_u64(),
 6121                                active: Some(handle.item_id()) == active_item_id,
 6122                                preview: pane.is_active_preview_item(handle.item_id()),
 6123                            })
 6124                        })
 6125                        .collect::<Vec<_>>(),
 6126                    pane.has_focus(window, cx),
 6127                    pane.pinned_count(),
 6128                )
 6129            };
 6130
 6131            SerializedPane::new(items, active, pinned_count)
 6132        }
 6133
 6134        fn build_serialized_pane_group(
 6135            pane_group: &Member,
 6136            window: &mut Window,
 6137            cx: &mut App,
 6138        ) -> SerializedPaneGroup {
 6139            match pane_group {
 6140                Member::Axis(PaneAxis {
 6141                    axis,
 6142                    members,
 6143                    flexes,
 6144                    bounding_boxes: _,
 6145                }) => SerializedPaneGroup::Group {
 6146                    axis: SerializedAxis(*axis),
 6147                    children: members
 6148                        .iter()
 6149                        .map(|member| build_serialized_pane_group(member, window, cx))
 6150                        .collect::<Vec<_>>(),
 6151                    flexes: Some(flexes.lock().clone()),
 6152                },
 6153                Member::Pane(pane_handle) => {
 6154                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6155                }
 6156            }
 6157        }
 6158
 6159        fn build_serialized_docks(
 6160            this: &Workspace,
 6161            window: &mut Window,
 6162            cx: &mut App,
 6163        ) -> DockStructure {
 6164            this.capture_dock_state(window, cx)
 6165        }
 6166
 6167        match self.workspace_location(cx) {
 6168            WorkspaceLocation::Location(location, paths) => {
 6169                let breakpoints = self.project.update(cx, |project, cx| {
 6170                    project
 6171                        .breakpoint_store()
 6172                        .read(cx)
 6173                        .all_source_breakpoints(cx)
 6174                });
 6175                let user_toolchains = self
 6176                    .project
 6177                    .read(cx)
 6178                    .user_toolchains(cx)
 6179                    .unwrap_or_default();
 6180
 6181                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6182                let docks = build_serialized_docks(self, window, cx);
 6183                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6184
 6185                let serialized_workspace = SerializedWorkspace {
 6186                    id: database_id,
 6187                    location,
 6188                    paths,
 6189                    center_group,
 6190                    window_bounds,
 6191                    display: Default::default(),
 6192                    docks,
 6193                    centered_layout: self.centered_layout,
 6194                    session_id: self.session_id.clone(),
 6195                    breakpoints,
 6196                    window_id: Some(window.window_handle().window_id().as_u64()),
 6197                    user_toolchains,
 6198                };
 6199
 6200                window.spawn(cx, async move |_| {
 6201                    persistence::DB.save_workspace(serialized_workspace).await;
 6202                })
 6203            }
 6204            WorkspaceLocation::DetachFromSession => {
 6205                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6206                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6207                // Save dock state for empty local workspaces
 6208                let docks = build_serialized_docks(self, window, cx);
 6209                window.spawn(cx, async move |_| {
 6210                    persistence::DB
 6211                        .set_window_open_status(
 6212                            database_id,
 6213                            window_bounds,
 6214                            display.unwrap_or_default(),
 6215                        )
 6216                        .await
 6217                        .log_err();
 6218                    persistence::DB
 6219                        .set_session_id(database_id, None)
 6220                        .await
 6221                        .log_err();
 6222                    persistence::write_default_dock_state(docks).await.log_err();
 6223                })
 6224            }
 6225            WorkspaceLocation::None => {
 6226                // Save dock state for empty non-local workspaces
 6227                let docks = build_serialized_docks(self, window, cx);
 6228                window.spawn(cx, async move |_| {
 6229                    persistence::write_default_dock_state(docks).await.log_err();
 6230                })
 6231            }
 6232        }
 6233    }
 6234
 6235    fn has_any_items_open(&self, cx: &App) -> bool {
 6236        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6237    }
 6238
 6239    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6240        let paths = PathList::new(&self.root_paths(cx));
 6241        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6242            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6243        } else if self.project.read(cx).is_local() {
 6244            if !paths.is_empty() || self.has_any_items_open(cx) {
 6245                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6246            } else {
 6247                WorkspaceLocation::DetachFromSession
 6248            }
 6249        } else {
 6250            WorkspaceLocation::None
 6251        }
 6252    }
 6253
 6254    fn update_history(&self, cx: &mut App) {
 6255        let Some(id) = self.database_id() else {
 6256            return;
 6257        };
 6258        if !self.project.read(cx).is_local() {
 6259            return;
 6260        }
 6261        if let Some(manager) = HistoryManager::global(cx) {
 6262            let paths = PathList::new(&self.root_paths(cx));
 6263            manager.update(cx, |this, cx| {
 6264                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6265            });
 6266        }
 6267    }
 6268
 6269    async fn serialize_items(
 6270        this: &WeakEntity<Self>,
 6271        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6272        cx: &mut AsyncWindowContext,
 6273    ) -> Result<()> {
 6274        const CHUNK_SIZE: usize = 200;
 6275
 6276        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6277
 6278        while let Some(items_received) = serializable_items.next().await {
 6279            let unique_items =
 6280                items_received
 6281                    .into_iter()
 6282                    .fold(HashMap::default(), |mut acc, item| {
 6283                        acc.entry(item.item_id()).or_insert(item);
 6284                        acc
 6285                    });
 6286
 6287            // We use into_iter() here so that the references to the items are moved into
 6288            // the tasks and not kept alive while we're sleeping.
 6289            for (_, item) in unique_items.into_iter() {
 6290                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6291                    item.serialize(workspace, false, window, cx)
 6292                }) {
 6293                    cx.background_spawn(async move { task.await.log_err() })
 6294                        .detach();
 6295                }
 6296            }
 6297
 6298            cx.background_executor()
 6299                .timer(SERIALIZATION_THROTTLE_TIME)
 6300                .await;
 6301        }
 6302
 6303        Ok(())
 6304    }
 6305
 6306    pub(crate) fn enqueue_item_serialization(
 6307        &mut self,
 6308        item: Box<dyn SerializableItemHandle>,
 6309    ) -> Result<()> {
 6310        self.serializable_items_tx
 6311            .unbounded_send(item)
 6312            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6313    }
 6314
 6315    pub(crate) fn load_workspace(
 6316        serialized_workspace: SerializedWorkspace,
 6317        paths_to_open: Vec<Option<ProjectPath>>,
 6318        window: &mut Window,
 6319        cx: &mut Context<Workspace>,
 6320    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6321        cx.spawn_in(window, async move |workspace, cx| {
 6322            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6323
 6324            let mut center_group = None;
 6325            let mut center_items = None;
 6326
 6327            // Traverse the splits tree and add to things
 6328            if let Some((group, active_pane, items)) = serialized_workspace
 6329                .center_group
 6330                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6331                .await
 6332            {
 6333                center_items = Some(items);
 6334                center_group = Some((group, active_pane))
 6335            }
 6336
 6337            let mut items_by_project_path = HashMap::default();
 6338            let mut item_ids_by_kind = HashMap::default();
 6339            let mut all_deserialized_items = Vec::default();
 6340            cx.update(|_, cx| {
 6341                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6342                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6343                        item_ids_by_kind
 6344                            .entry(serializable_item_handle.serialized_item_kind())
 6345                            .or_insert(Vec::new())
 6346                            .push(item.item_id().as_u64() as ItemId);
 6347                    }
 6348
 6349                    if let Some(project_path) = item.project_path(cx) {
 6350                        items_by_project_path.insert(project_path, item.clone());
 6351                    }
 6352                    all_deserialized_items.push(item);
 6353                }
 6354            })?;
 6355
 6356            let opened_items = paths_to_open
 6357                .into_iter()
 6358                .map(|path_to_open| {
 6359                    path_to_open
 6360                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6361                })
 6362                .collect::<Vec<_>>();
 6363
 6364            // Remove old panes from workspace panes list
 6365            workspace.update_in(cx, |workspace, window, cx| {
 6366                if let Some((center_group, active_pane)) = center_group {
 6367                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6368
 6369                    // Swap workspace center group
 6370                    workspace.center = PaneGroup::with_root(center_group);
 6371                    workspace.center.set_is_center(true);
 6372                    workspace.center.mark_positions(cx);
 6373
 6374                    if let Some(active_pane) = active_pane {
 6375                        workspace.set_active_pane(&active_pane, window, cx);
 6376                        cx.focus_self(window);
 6377                    } else {
 6378                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6379                    }
 6380                }
 6381
 6382                let docks = serialized_workspace.docks;
 6383
 6384                for (dock, serialized_dock) in [
 6385                    (&mut workspace.right_dock, docks.right),
 6386                    (&mut workspace.left_dock, docks.left),
 6387                    (&mut workspace.bottom_dock, docks.bottom),
 6388                ]
 6389                .iter_mut()
 6390                {
 6391                    dock.update(cx, |dock, cx| {
 6392                        dock.serialized_dock = Some(serialized_dock.clone());
 6393                        dock.restore_state(window, cx);
 6394                    });
 6395                }
 6396
 6397                cx.notify();
 6398            })?;
 6399
 6400            let _ = project
 6401                .update(cx, |project, cx| {
 6402                    project
 6403                        .breakpoint_store()
 6404                        .update(cx, |breakpoint_store, cx| {
 6405                            breakpoint_store
 6406                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6407                        })
 6408                })
 6409                .await;
 6410
 6411            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6412            // after loading the items, we might have different items and in order to avoid
 6413            // the database filling up, we delete items that haven't been loaded now.
 6414            //
 6415            // The items that have been loaded, have been saved after they've been added to the workspace.
 6416            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6417                item_ids_by_kind
 6418                    .into_iter()
 6419                    .map(|(item_kind, loaded_items)| {
 6420                        SerializableItemRegistry::cleanup(
 6421                            item_kind,
 6422                            serialized_workspace.id,
 6423                            loaded_items,
 6424                            window,
 6425                            cx,
 6426                        )
 6427                        .log_err()
 6428                    })
 6429                    .collect::<Vec<_>>()
 6430            })?;
 6431
 6432            futures::future::join_all(clean_up_tasks).await;
 6433
 6434            workspace
 6435                .update_in(cx, |workspace, window, cx| {
 6436                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6437                    workspace.serialize_workspace_internal(window, cx).detach();
 6438
 6439                    // Ensure that we mark the window as edited if we did load dirty items
 6440                    workspace.update_window_edited(window, cx);
 6441                })
 6442                .ok();
 6443
 6444            Ok(opened_items)
 6445        })
 6446    }
 6447
 6448    pub fn key_context(&self, cx: &App) -> KeyContext {
 6449        let mut context = KeyContext::new_with_defaults();
 6450        context.add("Workspace");
 6451        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6452        if let Some(status) = self
 6453            .debugger_provider
 6454            .as_ref()
 6455            .and_then(|provider| provider.active_thread_state(cx))
 6456        {
 6457            match status {
 6458                ThreadStatus::Running | ThreadStatus::Stepping => {
 6459                    context.add("debugger_running");
 6460                }
 6461                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6462                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6463            }
 6464        }
 6465
 6466        if self.left_dock.read(cx).is_open() {
 6467            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6468                context.set("left_dock", active_panel.panel_key());
 6469            }
 6470        }
 6471
 6472        if self.right_dock.read(cx).is_open() {
 6473            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6474                context.set("right_dock", active_panel.panel_key());
 6475            }
 6476        }
 6477
 6478        if self.bottom_dock.read(cx).is_open() {
 6479            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6480                context.set("bottom_dock", active_panel.panel_key());
 6481            }
 6482        }
 6483
 6484        context
 6485    }
 6486
 6487    /// Multiworkspace uses this to add workspace action handling to itself
 6488    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6489        self.add_workspace_actions_listeners(div, window, cx)
 6490            .on_action(cx.listener(
 6491                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6492                    for action in &action_sequence.0 {
 6493                        window.dispatch_action(action.boxed_clone(), cx);
 6494                    }
 6495                },
 6496            ))
 6497            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6498            .on_action(cx.listener(Self::close_all_items_and_panes))
 6499            .on_action(cx.listener(Self::close_item_in_all_panes))
 6500            .on_action(cx.listener(Self::save_all))
 6501            .on_action(cx.listener(Self::send_keystrokes))
 6502            .on_action(cx.listener(Self::add_folder_to_project))
 6503            .on_action(cx.listener(Self::follow_next_collaborator))
 6504            .on_action(cx.listener(Self::activate_pane_at_index))
 6505            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6506            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6507            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6508            .on_action(cx.listener(Self::toggle_theme_mode))
 6509            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6510                let pane = workspace.active_pane().clone();
 6511                workspace.unfollow_in_pane(&pane, window, cx);
 6512            }))
 6513            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6514                workspace
 6515                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6516                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6517            }))
 6518            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6519                workspace
 6520                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6521                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6522            }))
 6523            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6524                workspace
 6525                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6526                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6527            }))
 6528            .on_action(
 6529                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6530                    workspace.activate_previous_pane(window, cx)
 6531                }),
 6532            )
 6533            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6534                workspace.activate_next_pane(window, cx)
 6535            }))
 6536            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6537                workspace.activate_last_pane(window, cx)
 6538            }))
 6539            .on_action(
 6540                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6541                    workspace.activate_next_window(cx)
 6542                }),
 6543            )
 6544            .on_action(
 6545                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6546                    workspace.activate_previous_window(cx)
 6547                }),
 6548            )
 6549            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6550                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6551            }))
 6552            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6553                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6554            }))
 6555            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6556                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6557            }))
 6558            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6559                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6560            }))
 6561            .on_action(cx.listener(
 6562                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6563                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6564                },
 6565            ))
 6566            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6567                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6568            }))
 6569            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6570                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6571            }))
 6572            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6573                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6574            }))
 6575            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6576                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6577            }))
 6578            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6579                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6580                    SplitDirection::Down,
 6581                    SplitDirection::Up,
 6582                    SplitDirection::Right,
 6583                    SplitDirection::Left,
 6584                ];
 6585                for dir in DIRECTION_PRIORITY {
 6586                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6587                        workspace.swap_pane_in_direction(dir, cx);
 6588                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6589                        break;
 6590                    }
 6591                }
 6592            }))
 6593            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6594                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6595            }))
 6596            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6597                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6598            }))
 6599            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6600                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6601            }))
 6602            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6603                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6604            }))
 6605            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6606                this.toggle_dock(DockPosition::Left, window, cx);
 6607            }))
 6608            .on_action(cx.listener(
 6609                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6610                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6611                },
 6612            ))
 6613            .on_action(cx.listener(
 6614                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6615                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6616                },
 6617            ))
 6618            .on_action(cx.listener(
 6619                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6620                    if !workspace.close_active_dock(window, cx) {
 6621                        cx.propagate();
 6622                    }
 6623                },
 6624            ))
 6625            .on_action(
 6626                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6627                    workspace.close_all_docks(window, cx);
 6628                }),
 6629            )
 6630            .on_action(cx.listener(Self::toggle_all_docks))
 6631            .on_action(cx.listener(
 6632                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6633                    workspace.clear_all_notifications(cx);
 6634                },
 6635            ))
 6636            .on_action(cx.listener(
 6637                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6638                    workspace.clear_navigation_history(window, cx);
 6639                },
 6640            ))
 6641            .on_action(cx.listener(
 6642                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6643                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6644                        workspace.suppress_notification(&notification_id, cx);
 6645                    }
 6646                },
 6647            ))
 6648            .on_action(cx.listener(
 6649                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6650                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6651                },
 6652            ))
 6653            .on_action(
 6654                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6655                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6656                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6657                            trusted_worktrees.clear_trusted_paths()
 6658                        });
 6659                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6660                        cx.spawn(async move |_, cx| {
 6661                            if clear_task.await.log_err().is_some() {
 6662                                cx.update(|cx| reload(cx));
 6663                            }
 6664                        })
 6665                        .detach();
 6666                    }
 6667                }),
 6668            )
 6669            .on_action(cx.listener(
 6670                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6671                    workspace.reopen_closed_item(window, cx).detach();
 6672                },
 6673            ))
 6674            .on_action(cx.listener(
 6675                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6676                    for dock in workspace.all_docks() {
 6677                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6678                            let Some(panel) = dock.read(cx).active_panel() else {
 6679                                return;
 6680                            };
 6681
 6682                            // Set to `None`, then the size will fall back to the default.
 6683                            panel.clone().set_size(None, window, cx);
 6684
 6685                            return;
 6686                        }
 6687                    }
 6688                },
 6689            ))
 6690            .on_action(cx.listener(
 6691                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6692                    for dock in workspace.all_docks() {
 6693                        if let Some(panel) = dock.read(cx).visible_panel() {
 6694                            // Set to `None`, then the size will fall back to the default.
 6695                            panel.clone().set_size(None, window, cx);
 6696                        }
 6697                    }
 6698                },
 6699            ))
 6700            .on_action(cx.listener(
 6701                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6702                    adjust_active_dock_size_by_px(
 6703                        px_with_ui_font_fallback(act.px, cx),
 6704                        workspace,
 6705                        window,
 6706                        cx,
 6707                    );
 6708                },
 6709            ))
 6710            .on_action(cx.listener(
 6711                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6712                    adjust_active_dock_size_by_px(
 6713                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6714                        workspace,
 6715                        window,
 6716                        cx,
 6717                    );
 6718                },
 6719            ))
 6720            .on_action(cx.listener(
 6721                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6722                    adjust_open_docks_size_by_px(
 6723                        px_with_ui_font_fallback(act.px, cx),
 6724                        workspace,
 6725                        window,
 6726                        cx,
 6727                    );
 6728                },
 6729            ))
 6730            .on_action(cx.listener(
 6731                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6732                    adjust_open_docks_size_by_px(
 6733                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6734                        workspace,
 6735                        window,
 6736                        cx,
 6737                    );
 6738                },
 6739            ))
 6740            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6741            .on_action(cx.listener(
 6742                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6743                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6744                        let dock = active_dock.read(cx);
 6745                        if let Some(active_panel) = dock.active_panel() {
 6746                            if active_panel.pane(cx).is_none() {
 6747                                let mut recent_pane: Option<Entity<Pane>> = None;
 6748                                let mut recent_timestamp = 0;
 6749                                for pane_handle in workspace.panes() {
 6750                                    let pane = pane_handle.read(cx);
 6751                                    for entry in pane.activation_history() {
 6752                                        if entry.timestamp > recent_timestamp {
 6753                                            recent_timestamp = entry.timestamp;
 6754                                            recent_pane = Some(pane_handle.clone());
 6755                                        }
 6756                                    }
 6757                                }
 6758
 6759                                if let Some(pane) = recent_pane {
 6760                                    pane.update(cx, |pane, cx| {
 6761                                        let current_index = pane.active_item_index();
 6762                                        let items_len = pane.items_len();
 6763                                        if items_len > 0 {
 6764                                            let next_index = if current_index + 1 < items_len {
 6765                                                current_index + 1
 6766                                            } else {
 6767                                                0
 6768                                            };
 6769                                            pane.activate_item(
 6770                                                next_index, false, false, window, cx,
 6771                                            );
 6772                                        }
 6773                                    });
 6774                                    return;
 6775                                }
 6776                            }
 6777                        }
 6778                    }
 6779                    cx.propagate();
 6780                },
 6781            ))
 6782            .on_action(cx.listener(
 6783                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6784                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6785                        let dock = active_dock.read(cx);
 6786                        if let Some(active_panel) = dock.active_panel() {
 6787                            if active_panel.pane(cx).is_none() {
 6788                                let mut recent_pane: Option<Entity<Pane>> = None;
 6789                                let mut recent_timestamp = 0;
 6790                                for pane_handle in workspace.panes() {
 6791                                    let pane = pane_handle.read(cx);
 6792                                    for entry in pane.activation_history() {
 6793                                        if entry.timestamp > recent_timestamp {
 6794                                            recent_timestamp = entry.timestamp;
 6795                                            recent_pane = Some(pane_handle.clone());
 6796                                        }
 6797                                    }
 6798                                }
 6799
 6800                                if let Some(pane) = recent_pane {
 6801                                    pane.update(cx, |pane, cx| {
 6802                                        let current_index = pane.active_item_index();
 6803                                        let items_len = pane.items_len();
 6804                                        if items_len > 0 {
 6805                                            let prev_index = if current_index > 0 {
 6806                                                current_index - 1
 6807                                            } else {
 6808                                                items_len.saturating_sub(1)
 6809                                            };
 6810                                            pane.activate_item(
 6811                                                prev_index, false, false, window, cx,
 6812                                            );
 6813                                        }
 6814                                    });
 6815                                    return;
 6816                                }
 6817                            }
 6818                        }
 6819                    }
 6820                    cx.propagate();
 6821                },
 6822            ))
 6823            .on_action(cx.listener(
 6824                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6825                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6826                        let dock = active_dock.read(cx);
 6827                        if let Some(active_panel) = dock.active_panel() {
 6828                            if active_panel.pane(cx).is_none() {
 6829                                let active_pane = workspace.active_pane().clone();
 6830                                active_pane.update(cx, |pane, cx| {
 6831                                    pane.close_active_item(action, window, cx)
 6832                                        .detach_and_log_err(cx);
 6833                                });
 6834                                return;
 6835                            }
 6836                        }
 6837                    }
 6838                    cx.propagate();
 6839                },
 6840            ))
 6841            .on_action(
 6842                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6843                    let pane = workspace.active_pane().clone();
 6844                    if let Some(item) = pane.read(cx).active_item() {
 6845                        item.toggle_read_only(window, cx);
 6846                    }
 6847                }),
 6848            )
 6849            .on_action(cx.listener(Workspace::cancel))
 6850    }
 6851
 6852    #[cfg(any(test, feature = "test-support"))]
 6853    pub fn set_random_database_id(&mut self) {
 6854        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6855    }
 6856
 6857    #[cfg(any(test, feature = "test-support"))]
 6858    pub(crate) fn test_new(
 6859        project: Entity<Project>,
 6860        window: &mut Window,
 6861        cx: &mut Context<Self>,
 6862    ) -> Self {
 6863        use node_runtime::NodeRuntime;
 6864        use session::Session;
 6865
 6866        let client = project.read(cx).client();
 6867        let user_store = project.read(cx).user_store();
 6868        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6869        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6870        window.activate_window();
 6871        let app_state = Arc::new(AppState {
 6872            languages: project.read(cx).languages().clone(),
 6873            workspace_store,
 6874            client,
 6875            user_store,
 6876            fs: project.read(cx).fs().clone(),
 6877            build_window_options: |_, _| Default::default(),
 6878            node_runtime: NodeRuntime::unavailable(),
 6879            session,
 6880        });
 6881        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6882        workspace
 6883            .active_pane
 6884            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6885        workspace
 6886    }
 6887
 6888    pub fn register_action<A: Action>(
 6889        &mut self,
 6890        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6891    ) -> &mut Self {
 6892        let callback = Arc::new(callback);
 6893
 6894        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6895            let callback = callback.clone();
 6896            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6897                (callback)(workspace, event, window, cx)
 6898            }))
 6899        }));
 6900        self
 6901    }
 6902    pub fn register_action_renderer(
 6903        &mut self,
 6904        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6905    ) -> &mut Self {
 6906        self.workspace_actions.push(Box::new(callback));
 6907        self
 6908    }
 6909
 6910    fn add_workspace_actions_listeners(
 6911        &self,
 6912        mut div: Div,
 6913        window: &mut Window,
 6914        cx: &mut Context<Self>,
 6915    ) -> Div {
 6916        for action in self.workspace_actions.iter() {
 6917            div = (action)(div, self, window, cx)
 6918        }
 6919        div
 6920    }
 6921
 6922    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6923        self.modal_layer.read(cx).has_active_modal()
 6924    }
 6925
 6926    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6927        self.modal_layer.read(cx).active_modal()
 6928    }
 6929
 6930    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6931    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6932    /// If no modal is active, the new modal will be shown.
 6933    ///
 6934    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6935    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6936    /// will not be shown.
 6937    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6938    where
 6939        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6940    {
 6941        self.modal_layer.update(cx, |modal_layer, cx| {
 6942            modal_layer.toggle_modal(window, cx, build)
 6943        })
 6944    }
 6945
 6946    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6947        self.modal_layer
 6948            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6949    }
 6950
 6951    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6952        self.toast_layer
 6953            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6954    }
 6955
 6956    pub fn toggle_centered_layout(
 6957        &mut self,
 6958        _: &ToggleCenteredLayout,
 6959        _: &mut Window,
 6960        cx: &mut Context<Self>,
 6961    ) {
 6962        self.centered_layout = !self.centered_layout;
 6963        if let Some(database_id) = self.database_id() {
 6964            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6965                .detach_and_log_err(cx);
 6966        }
 6967        cx.notify();
 6968    }
 6969
 6970    fn adjust_padding(padding: Option<f32>) -> f32 {
 6971        padding
 6972            .unwrap_or(CenteredPaddingSettings::default().0)
 6973            .clamp(
 6974                CenteredPaddingSettings::MIN_PADDING,
 6975                CenteredPaddingSettings::MAX_PADDING,
 6976            )
 6977    }
 6978
 6979    fn render_dock(
 6980        &self,
 6981        position: DockPosition,
 6982        dock: &Entity<Dock>,
 6983        window: &mut Window,
 6984        cx: &mut App,
 6985    ) -> Option<Div> {
 6986        if self.zoomed_position == Some(position) {
 6987            return None;
 6988        }
 6989
 6990        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6991            let pane = panel.pane(cx)?;
 6992            let follower_states = &self.follower_states;
 6993            leader_border_for_pane(follower_states, &pane, window, cx)
 6994        });
 6995
 6996        Some(
 6997            div()
 6998                .flex()
 6999                .flex_none()
 7000                .overflow_hidden()
 7001                .child(dock.clone())
 7002                .children(leader_border),
 7003        )
 7004    }
 7005
 7006    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7007        window
 7008            .root::<MultiWorkspace>()
 7009            .flatten()
 7010            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7011    }
 7012
 7013    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7014        self.zoomed.as_ref()
 7015    }
 7016
 7017    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7018        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7019            return;
 7020        };
 7021        let windows = cx.windows();
 7022        let next_window =
 7023            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7024                || {
 7025                    windows
 7026                        .iter()
 7027                        .cycle()
 7028                        .skip_while(|window| window.window_id() != current_window_id)
 7029                        .nth(1)
 7030                },
 7031            );
 7032
 7033        if let Some(window) = next_window {
 7034            window
 7035                .update(cx, |_, window, _| window.activate_window())
 7036                .ok();
 7037        }
 7038    }
 7039
 7040    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7041        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7042            return;
 7043        };
 7044        let windows = cx.windows();
 7045        let prev_window =
 7046            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7047                || {
 7048                    windows
 7049                        .iter()
 7050                        .rev()
 7051                        .cycle()
 7052                        .skip_while(|window| window.window_id() != current_window_id)
 7053                        .nth(1)
 7054                },
 7055            );
 7056
 7057        if let Some(window) = prev_window {
 7058            window
 7059                .update(cx, |_, window, _| window.activate_window())
 7060                .ok();
 7061        }
 7062    }
 7063
 7064    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7065        if cx.stop_active_drag(window) {
 7066        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7067            dismiss_app_notification(&notification_id, cx);
 7068        } else {
 7069            cx.propagate();
 7070        }
 7071    }
 7072
 7073    fn adjust_dock_size_by_px(
 7074        &mut self,
 7075        panel_size: Pixels,
 7076        dock_pos: DockPosition,
 7077        px: Pixels,
 7078        window: &mut Window,
 7079        cx: &mut Context<Self>,
 7080    ) {
 7081        match dock_pos {
 7082            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 7083            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 7084            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 7085        }
 7086    }
 7087
 7088    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7089        let workspace_width = self.bounds.size.width;
 7090        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7091
 7092        self.right_dock.read_with(cx, |right_dock, cx| {
 7093            let right_dock_size = right_dock
 7094                .active_panel_size(window, cx)
 7095                .unwrap_or(Pixels::ZERO);
 7096            if right_dock_size + size > workspace_width {
 7097                size = workspace_width - right_dock_size
 7098            }
 7099        });
 7100
 7101        self.left_dock.update(cx, |left_dock, cx| {
 7102            if WorkspaceSettings::get_global(cx)
 7103                .resize_all_panels_in_dock
 7104                .contains(&DockPosition::Left)
 7105            {
 7106                left_dock.resize_all_panels(Some(size), window, cx);
 7107            } else {
 7108                left_dock.resize_active_panel(Some(size), window, cx);
 7109            }
 7110        });
 7111    }
 7112
 7113    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7114        let workspace_width = self.bounds.size.width;
 7115        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7116        self.left_dock.read_with(cx, |left_dock, cx| {
 7117            let left_dock_size = left_dock
 7118                .active_panel_size(window, cx)
 7119                .unwrap_or(Pixels::ZERO);
 7120            if left_dock_size + size > workspace_width {
 7121                size = workspace_width - left_dock_size
 7122            }
 7123        });
 7124        self.right_dock.update(cx, |right_dock, cx| {
 7125            if WorkspaceSettings::get_global(cx)
 7126                .resize_all_panels_in_dock
 7127                .contains(&DockPosition::Right)
 7128            {
 7129                right_dock.resize_all_panels(Some(size), window, cx);
 7130            } else {
 7131                right_dock.resize_active_panel(Some(size), window, cx);
 7132            }
 7133        });
 7134    }
 7135
 7136    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7137        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7138        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7139            if WorkspaceSettings::get_global(cx)
 7140                .resize_all_panels_in_dock
 7141                .contains(&DockPosition::Bottom)
 7142            {
 7143                bottom_dock.resize_all_panels(Some(size), window, cx);
 7144            } else {
 7145                bottom_dock.resize_active_panel(Some(size), window, cx);
 7146            }
 7147        });
 7148    }
 7149
 7150    fn toggle_edit_predictions_all_files(
 7151        &mut self,
 7152        _: &ToggleEditPrediction,
 7153        _window: &mut Window,
 7154        cx: &mut Context<Self>,
 7155    ) {
 7156        let fs = self.project().read(cx).fs().clone();
 7157        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7158        update_settings_file(fs, cx, move |file, _| {
 7159            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7160        });
 7161    }
 7162
 7163    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7164        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7165        let next_mode = match current_mode {
 7166            Some(theme::ThemeAppearanceMode::Light) => theme::ThemeAppearanceMode::Dark,
 7167            Some(theme::ThemeAppearanceMode::Dark) => theme::ThemeAppearanceMode::Light,
 7168            Some(theme::ThemeAppearanceMode::System) | None => match cx.theme().appearance() {
 7169                theme::Appearance::Light => theme::ThemeAppearanceMode::Dark,
 7170                theme::Appearance::Dark => theme::ThemeAppearanceMode::Light,
 7171            },
 7172        };
 7173
 7174        let fs = self.project().read(cx).fs().clone();
 7175        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7176            theme::set_mode(settings, next_mode);
 7177        });
 7178    }
 7179
 7180    pub fn show_worktree_trust_security_modal(
 7181        &mut self,
 7182        toggle: bool,
 7183        window: &mut Window,
 7184        cx: &mut Context<Self>,
 7185    ) {
 7186        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7187            if toggle {
 7188                security_modal.update(cx, |security_modal, cx| {
 7189                    security_modal.dismiss(cx);
 7190                })
 7191            } else {
 7192                security_modal.update(cx, |security_modal, cx| {
 7193                    security_modal.refresh_restricted_paths(cx);
 7194                });
 7195            }
 7196        } else {
 7197            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7198                .map(|trusted_worktrees| {
 7199                    trusted_worktrees
 7200                        .read(cx)
 7201                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7202                })
 7203                .unwrap_or(false);
 7204            if has_restricted_worktrees {
 7205                let project = self.project().read(cx);
 7206                let remote_host = project
 7207                    .remote_connection_options(cx)
 7208                    .map(RemoteHostLocation::from);
 7209                let worktree_store = project.worktree_store().downgrade();
 7210                self.toggle_modal(window, cx, |_, cx| {
 7211                    SecurityModal::new(worktree_store, remote_host, cx)
 7212                });
 7213            }
 7214        }
 7215    }
 7216}
 7217
 7218pub trait AnyActiveCall {
 7219    fn entity(&self) -> AnyEntity;
 7220    fn is_in_room(&self, _: &App) -> bool;
 7221    fn room_id(&self, _: &App) -> Option<u64>;
 7222    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7223    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7224    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7225    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7226    fn is_sharing_project(&self, _: &App) -> bool;
 7227    fn has_remote_participants(&self, _: &App) -> bool;
 7228    fn local_participant_is_guest(&self, _: &App) -> bool;
 7229    fn client(&self, _: &App) -> Arc<Client>;
 7230    fn share_on_join(&self, _: &App) -> bool;
 7231    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7232    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7233    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7234    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7235    fn join_project(
 7236        &self,
 7237        _: u64,
 7238        _: Arc<LanguageRegistry>,
 7239        _: Arc<dyn Fs>,
 7240        _: &mut App,
 7241    ) -> Task<Result<Entity<Project>>>;
 7242    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7243    fn subscribe(
 7244        &self,
 7245        _: &mut Window,
 7246        _: &mut Context<Workspace>,
 7247        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7248    ) -> Subscription;
 7249    fn create_shared_screen(
 7250        &self,
 7251        _: PeerId,
 7252        _: &Entity<Pane>,
 7253        _: &mut Window,
 7254        _: &mut App,
 7255    ) -> Option<Entity<SharedScreen>>;
 7256}
 7257
 7258#[derive(Clone)]
 7259pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7260impl Global for GlobalAnyActiveCall {}
 7261
 7262impl GlobalAnyActiveCall {
 7263    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7264        cx.try_global()
 7265    }
 7266
 7267    pub(crate) fn global(cx: &App) -> &Self {
 7268        cx.global()
 7269    }
 7270}
 7271
 7272pub fn merge_conflict_notification_id() -> NotificationId {
 7273    struct MergeConflictNotification;
 7274    NotificationId::unique::<MergeConflictNotification>()
 7275}
 7276
 7277/// Workspace-local view of a remote participant's location.
 7278#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7279pub enum ParticipantLocation {
 7280    SharedProject { project_id: u64 },
 7281    UnsharedProject,
 7282    External,
 7283}
 7284
 7285impl ParticipantLocation {
 7286    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7287        match location
 7288            .and_then(|l| l.variant)
 7289            .context("participant location was not provided")?
 7290        {
 7291            proto::participant_location::Variant::SharedProject(project) => {
 7292                Ok(Self::SharedProject {
 7293                    project_id: project.id,
 7294                })
 7295            }
 7296            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7297            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7298        }
 7299    }
 7300}
 7301/// Workspace-local view of a remote collaborator's state.
 7302/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7303#[derive(Clone)]
 7304pub struct RemoteCollaborator {
 7305    pub user: Arc<User>,
 7306    pub peer_id: PeerId,
 7307    pub location: ParticipantLocation,
 7308    pub participant_index: ParticipantIndex,
 7309}
 7310
 7311pub enum ActiveCallEvent {
 7312    ParticipantLocationChanged { participant_id: PeerId },
 7313    RemoteVideoTracksChanged { participant_id: PeerId },
 7314}
 7315
 7316fn leader_border_for_pane(
 7317    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7318    pane: &Entity<Pane>,
 7319    _: &Window,
 7320    cx: &App,
 7321) -> Option<Div> {
 7322    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7323        if state.pane() == pane {
 7324            Some((*leader_id, state))
 7325        } else {
 7326            None
 7327        }
 7328    })?;
 7329
 7330    let mut leader_color = match leader_id {
 7331        CollaboratorId::PeerId(leader_peer_id) => {
 7332            let leader = GlobalAnyActiveCall::try_global(cx)?
 7333                .0
 7334                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7335
 7336            cx.theme()
 7337                .players()
 7338                .color_for_participant(leader.participant_index.0)
 7339                .cursor
 7340        }
 7341        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7342    };
 7343    leader_color.fade_out(0.3);
 7344    Some(
 7345        div()
 7346            .absolute()
 7347            .size_full()
 7348            .left_0()
 7349            .top_0()
 7350            .border_2()
 7351            .border_color(leader_color),
 7352    )
 7353}
 7354
 7355fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7356    ZED_WINDOW_POSITION
 7357        .zip(*ZED_WINDOW_SIZE)
 7358        .map(|(position, size)| Bounds {
 7359            origin: position,
 7360            size,
 7361        })
 7362}
 7363
 7364fn open_items(
 7365    serialized_workspace: Option<SerializedWorkspace>,
 7366    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7367    window: &mut Window,
 7368    cx: &mut Context<Workspace>,
 7369) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7370    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7371        Workspace::load_workspace(
 7372            serialized_workspace,
 7373            project_paths_to_open
 7374                .iter()
 7375                .map(|(_, project_path)| project_path)
 7376                .cloned()
 7377                .collect(),
 7378            window,
 7379            cx,
 7380        )
 7381    });
 7382
 7383    cx.spawn_in(window, async move |workspace, cx| {
 7384        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7385
 7386        if let Some(restored_items) = restored_items {
 7387            let restored_items = restored_items.await?;
 7388
 7389            let restored_project_paths = restored_items
 7390                .iter()
 7391                .filter_map(|item| {
 7392                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7393                        .ok()
 7394                        .flatten()
 7395                })
 7396                .collect::<HashSet<_>>();
 7397
 7398            for restored_item in restored_items {
 7399                opened_items.push(restored_item.map(Ok));
 7400            }
 7401
 7402            project_paths_to_open
 7403                .iter_mut()
 7404                .for_each(|(_, project_path)| {
 7405                    if let Some(project_path_to_open) = project_path
 7406                        && restored_project_paths.contains(project_path_to_open)
 7407                    {
 7408                        *project_path = None;
 7409                    }
 7410                });
 7411        } else {
 7412            for _ in 0..project_paths_to_open.len() {
 7413                opened_items.push(None);
 7414            }
 7415        }
 7416        assert!(opened_items.len() == project_paths_to_open.len());
 7417
 7418        let tasks =
 7419            project_paths_to_open
 7420                .into_iter()
 7421                .enumerate()
 7422                .map(|(ix, (abs_path, project_path))| {
 7423                    let workspace = workspace.clone();
 7424                    cx.spawn(async move |cx| {
 7425                        let file_project_path = project_path?;
 7426                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7427                            workspace.project().update(cx, |project, cx| {
 7428                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7429                            })
 7430                        });
 7431
 7432                        // We only want to open file paths here. If one of the items
 7433                        // here is a directory, it was already opened further above
 7434                        // with a `find_or_create_worktree`.
 7435                        if let Ok(task) = abs_path_task
 7436                            && task.await.is_none_or(|p| p.is_file())
 7437                        {
 7438                            return Some((
 7439                                ix,
 7440                                workspace
 7441                                    .update_in(cx, |workspace, window, cx| {
 7442                                        workspace.open_path(
 7443                                            file_project_path,
 7444                                            None,
 7445                                            true,
 7446                                            window,
 7447                                            cx,
 7448                                        )
 7449                                    })
 7450                                    .log_err()?
 7451                                    .await,
 7452                            ));
 7453                        }
 7454                        None
 7455                    })
 7456                });
 7457
 7458        let tasks = tasks.collect::<Vec<_>>();
 7459
 7460        let tasks = futures::future::join_all(tasks);
 7461        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7462            opened_items[ix] = Some(path_open_result);
 7463        }
 7464
 7465        Ok(opened_items)
 7466    })
 7467}
 7468
 7469enum ActivateInDirectionTarget {
 7470    Pane(Entity<Pane>),
 7471    Dock(Entity<Dock>),
 7472}
 7473
 7474fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7475    window
 7476        .update(cx, |multi_workspace, _, cx| {
 7477            let workspace = multi_workspace.workspace().clone();
 7478            workspace.update(cx, |workspace, cx| {
 7479                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7480                    struct DatabaseFailedNotification;
 7481
 7482                    workspace.show_notification(
 7483                        NotificationId::unique::<DatabaseFailedNotification>(),
 7484                        cx,
 7485                        |cx| {
 7486                            cx.new(|cx| {
 7487                                MessageNotification::new("Failed to load the database file.", cx)
 7488                                    .primary_message("File an Issue")
 7489                                    .primary_icon(IconName::Plus)
 7490                                    .primary_on_click(|window, cx| {
 7491                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7492                                    })
 7493                            })
 7494                        },
 7495                    );
 7496                }
 7497            });
 7498        })
 7499        .log_err();
 7500}
 7501
 7502fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7503    if val == 0 {
 7504        ThemeSettings::get_global(cx).ui_font_size(cx)
 7505    } else {
 7506        px(val as f32)
 7507    }
 7508}
 7509
 7510fn adjust_active_dock_size_by_px(
 7511    px: Pixels,
 7512    workspace: &mut Workspace,
 7513    window: &mut Window,
 7514    cx: &mut Context<Workspace>,
 7515) {
 7516    let Some(active_dock) = workspace
 7517        .all_docks()
 7518        .into_iter()
 7519        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7520    else {
 7521        return;
 7522    };
 7523    let dock = active_dock.read(cx);
 7524    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7525        return;
 7526    };
 7527    let dock_pos = dock.position();
 7528    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7529}
 7530
 7531fn adjust_open_docks_size_by_px(
 7532    px: Pixels,
 7533    workspace: &mut Workspace,
 7534    window: &mut Window,
 7535    cx: &mut Context<Workspace>,
 7536) {
 7537    let docks = workspace
 7538        .all_docks()
 7539        .into_iter()
 7540        .filter_map(|dock| {
 7541            if dock.read(cx).is_open() {
 7542                let dock = dock.read(cx);
 7543                let panel_size = dock.active_panel_size(window, cx)?;
 7544                let dock_pos = dock.position();
 7545                Some((panel_size, dock_pos, px))
 7546            } else {
 7547                None
 7548            }
 7549        })
 7550        .collect::<Vec<_>>();
 7551
 7552    docks
 7553        .into_iter()
 7554        .for_each(|(panel_size, dock_pos, offset)| {
 7555            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7556        });
 7557}
 7558
 7559impl Focusable for Workspace {
 7560    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7561        self.active_pane.focus_handle(cx)
 7562    }
 7563}
 7564
 7565#[derive(Clone)]
 7566struct DraggedDock(DockPosition);
 7567
 7568impl Render for DraggedDock {
 7569    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7570        gpui::Empty
 7571    }
 7572}
 7573
 7574impl Render for Workspace {
 7575    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7576        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7577        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7578            log::info!("Rendered first frame");
 7579        }
 7580
 7581        let centered_layout = self.centered_layout
 7582            && self.center.panes().len() == 1
 7583            && self.active_item(cx).is_some();
 7584        let render_padding = |size| {
 7585            (size > 0.0).then(|| {
 7586                div()
 7587                    .h_full()
 7588                    .w(relative(size))
 7589                    .bg(cx.theme().colors().editor_background)
 7590                    .border_color(cx.theme().colors().pane_group_border)
 7591            })
 7592        };
 7593        let paddings = if centered_layout {
 7594            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7595            (
 7596                render_padding(Self::adjust_padding(
 7597                    settings.left_padding.map(|padding| padding.0),
 7598                )),
 7599                render_padding(Self::adjust_padding(
 7600                    settings.right_padding.map(|padding| padding.0),
 7601                )),
 7602            )
 7603        } else {
 7604            (None, None)
 7605        };
 7606        let ui_font = theme::setup_ui_font(window, cx);
 7607
 7608        let theme = cx.theme().clone();
 7609        let colors = theme.colors();
 7610        let notification_entities = self
 7611            .notifications
 7612            .iter()
 7613            .map(|(_, notification)| notification.entity_id())
 7614            .collect::<Vec<_>>();
 7615        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7616
 7617        div()
 7618            .relative()
 7619            .size_full()
 7620            .flex()
 7621            .flex_col()
 7622            .font(ui_font)
 7623            .gap_0()
 7624                .justify_start()
 7625                .items_start()
 7626                .text_color(colors.text)
 7627                .overflow_hidden()
 7628                .children(self.titlebar_item.clone())
 7629                .on_modifiers_changed(move |_, _, cx| {
 7630                    for &id in &notification_entities {
 7631                        cx.notify(id);
 7632                    }
 7633                })
 7634                .child(
 7635                    div()
 7636                        .size_full()
 7637                        .relative()
 7638                        .flex_1()
 7639                        .flex()
 7640                        .flex_col()
 7641                        .child(
 7642                            div()
 7643                                .id("workspace")
 7644                                .bg(colors.background)
 7645                                .relative()
 7646                                .flex_1()
 7647                                .w_full()
 7648                                .flex()
 7649                                .flex_col()
 7650                                .overflow_hidden()
 7651                                .border_t_1()
 7652                                .border_b_1()
 7653                                .border_color(colors.border)
 7654                                .child({
 7655                                    let this = cx.entity();
 7656                                    canvas(
 7657                                        move |bounds, window, cx| {
 7658                                            this.update(cx, |this, cx| {
 7659                                                let bounds_changed = this.bounds != bounds;
 7660                                                this.bounds = bounds;
 7661
 7662                                                if bounds_changed {
 7663                                                    this.left_dock.update(cx, |dock, cx| {
 7664                                                        dock.clamp_panel_size(
 7665                                                            bounds.size.width,
 7666                                                            window,
 7667                                                            cx,
 7668                                                        )
 7669                                                    });
 7670
 7671                                                    this.right_dock.update(cx, |dock, cx| {
 7672                                                        dock.clamp_panel_size(
 7673                                                            bounds.size.width,
 7674                                                            window,
 7675                                                            cx,
 7676                                                        )
 7677                                                    });
 7678
 7679                                                    this.bottom_dock.update(cx, |dock, cx| {
 7680                                                        dock.clamp_panel_size(
 7681                                                            bounds.size.height,
 7682                                                            window,
 7683                                                            cx,
 7684                                                        )
 7685                                                    });
 7686                                                }
 7687                                            })
 7688                                        },
 7689                                        |_, _, _, _| {},
 7690                                    )
 7691                                    .absolute()
 7692                                    .size_full()
 7693                                })
 7694                                .when(self.zoomed.is_none(), |this| {
 7695                                    this.on_drag_move(cx.listener(
 7696                                        move |workspace,
 7697                                              e: &DragMoveEvent<DraggedDock>,
 7698                                              window,
 7699                                              cx| {
 7700                                            if workspace.previous_dock_drag_coordinates
 7701                                                != Some(e.event.position)
 7702                                            {
 7703                                                workspace.previous_dock_drag_coordinates =
 7704                                                    Some(e.event.position);
 7705
 7706                                                match e.drag(cx).0 {
 7707                                                    DockPosition::Left => {
 7708                                                        workspace.resize_left_dock(
 7709                                                            e.event.position.x
 7710                                                                - workspace.bounds.left(),
 7711                                                            window,
 7712                                                            cx,
 7713                                                        );
 7714                                                    }
 7715                                                    DockPosition::Right => {
 7716                                                        workspace.resize_right_dock(
 7717                                                            workspace.bounds.right()
 7718                                                                - e.event.position.x,
 7719                                                            window,
 7720                                                            cx,
 7721                                                        );
 7722                                                    }
 7723                                                    DockPosition::Bottom => {
 7724                                                        workspace.resize_bottom_dock(
 7725                                                            workspace.bounds.bottom()
 7726                                                                - e.event.position.y,
 7727                                                            window,
 7728                                                            cx,
 7729                                                        );
 7730                                                    }
 7731                                                };
 7732                                                workspace.serialize_workspace(window, cx);
 7733                                            }
 7734                                        },
 7735                                    ))
 7736
 7737                                })
 7738                                .child({
 7739                                    match bottom_dock_layout {
 7740                                        BottomDockLayout::Full => div()
 7741                                            .flex()
 7742                                            .flex_col()
 7743                                            .h_full()
 7744                                            .child(
 7745                                                div()
 7746                                                    .flex()
 7747                                                    .flex_row()
 7748                                                    .flex_1()
 7749                                                    .overflow_hidden()
 7750                                                    .children(self.render_dock(
 7751                                                        DockPosition::Left,
 7752                                                        &self.left_dock,
 7753                                                        window,
 7754                                                        cx,
 7755                                                    ))
 7756
 7757                                                    .child(
 7758                                                        div()
 7759                                                            .flex()
 7760                                                            .flex_col()
 7761                                                            .flex_1()
 7762                                                            .overflow_hidden()
 7763                                                            .child(
 7764                                                                h_flex()
 7765                                                                    .flex_1()
 7766                                                                    .when_some(
 7767                                                                        paddings.0,
 7768                                                                        |this, p| {
 7769                                                                            this.child(
 7770                                                                                p.border_r_1(),
 7771                                                                            )
 7772                                                                        },
 7773                                                                    )
 7774                                                                    .child(self.center.render(
 7775                                                                        self.zoomed.as_ref(),
 7776                                                                        &PaneRenderContext {
 7777                                                                            follower_states:
 7778                                                                                &self.follower_states,
 7779                                                                            active_call: self.active_call(),
 7780                                                                            active_pane: &self.active_pane,
 7781                                                                            app_state: &self.app_state,
 7782                                                                            project: &self.project,
 7783                                                                            workspace: &self.weak_self,
 7784                                                                        },
 7785                                                                        window,
 7786                                                                        cx,
 7787                                                                    ))
 7788                                                                    .when_some(
 7789                                                                        paddings.1,
 7790                                                                        |this, p| {
 7791                                                                            this.child(
 7792                                                                                p.border_l_1(),
 7793                                                                            )
 7794                                                                        },
 7795                                                                    ),
 7796                                                            ),
 7797                                                    )
 7798
 7799                                                    .children(self.render_dock(
 7800                                                        DockPosition::Right,
 7801                                                        &self.right_dock,
 7802                                                        window,
 7803                                                        cx,
 7804                                                    )),
 7805                                            )
 7806                                            .child(div().w_full().children(self.render_dock(
 7807                                                DockPosition::Bottom,
 7808                                                &self.bottom_dock,
 7809                                                window,
 7810                                                cx
 7811                                            ))),
 7812
 7813                                        BottomDockLayout::LeftAligned => div()
 7814                                            .flex()
 7815                                            .flex_row()
 7816                                            .h_full()
 7817                                            .child(
 7818                                                div()
 7819                                                    .flex()
 7820                                                    .flex_col()
 7821                                                    .flex_1()
 7822                                                    .h_full()
 7823                                                    .child(
 7824                                                        div()
 7825                                                            .flex()
 7826                                                            .flex_row()
 7827                                                            .flex_1()
 7828                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7829
 7830                                                            .child(
 7831                                                                div()
 7832                                                                    .flex()
 7833                                                                    .flex_col()
 7834                                                                    .flex_1()
 7835                                                                    .overflow_hidden()
 7836                                                                    .child(
 7837                                                                        h_flex()
 7838                                                                            .flex_1()
 7839                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7840                                                                            .child(self.center.render(
 7841                                                                                self.zoomed.as_ref(),
 7842                                                                                &PaneRenderContext {
 7843                                                                                    follower_states:
 7844                                                                                        &self.follower_states,
 7845                                                                                    active_call: self.active_call(),
 7846                                                                                    active_pane: &self.active_pane,
 7847                                                                                    app_state: &self.app_state,
 7848                                                                                    project: &self.project,
 7849                                                                                    workspace: &self.weak_self,
 7850                                                                                },
 7851                                                                                window,
 7852                                                                                cx,
 7853                                                                            ))
 7854                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7855                                                                    )
 7856                                                            )
 7857
 7858                                                    )
 7859                                                    .child(
 7860                                                        div()
 7861                                                            .w_full()
 7862                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7863                                                    ),
 7864                                            )
 7865                                            .children(self.render_dock(
 7866                                                DockPosition::Right,
 7867                                                &self.right_dock,
 7868                                                window,
 7869                                                cx,
 7870                                            )),
 7871                                        BottomDockLayout::RightAligned => div()
 7872                                            .flex()
 7873                                            .flex_row()
 7874                                            .h_full()
 7875                                            .children(self.render_dock(
 7876                                                DockPosition::Left,
 7877                                                &self.left_dock,
 7878                                                window,
 7879                                                cx,
 7880                                            ))
 7881
 7882                                            .child(
 7883                                                div()
 7884                                                    .flex()
 7885                                                    .flex_col()
 7886                                                    .flex_1()
 7887                                                    .h_full()
 7888                                                    .child(
 7889                                                        div()
 7890                                                            .flex()
 7891                                                            .flex_row()
 7892                                                            .flex_1()
 7893                                                            .child(
 7894                                                                div()
 7895                                                                    .flex()
 7896                                                                    .flex_col()
 7897                                                                    .flex_1()
 7898                                                                    .overflow_hidden()
 7899                                                                    .child(
 7900                                                                        h_flex()
 7901                                                                            .flex_1()
 7902                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7903                                                                            .child(self.center.render(
 7904                                                                                self.zoomed.as_ref(),
 7905                                                                                &PaneRenderContext {
 7906                                                                                    follower_states:
 7907                                                                                        &self.follower_states,
 7908                                                                                    active_call: self.active_call(),
 7909                                                                                    active_pane: &self.active_pane,
 7910                                                                                    app_state: &self.app_state,
 7911                                                                                    project: &self.project,
 7912                                                                                    workspace: &self.weak_self,
 7913                                                                                },
 7914                                                                                window,
 7915                                                                                cx,
 7916                                                                            ))
 7917                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7918                                                                    )
 7919                                                            )
 7920
 7921                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7922                                                    )
 7923                                                    .child(
 7924                                                        div()
 7925                                                            .w_full()
 7926                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7927                                                    ),
 7928                                            ),
 7929                                        BottomDockLayout::Contained => div()
 7930                                            .flex()
 7931                                            .flex_row()
 7932                                            .h_full()
 7933                                            .children(self.render_dock(
 7934                                                DockPosition::Left,
 7935                                                &self.left_dock,
 7936                                                window,
 7937                                                cx,
 7938                                            ))
 7939
 7940                                            .child(
 7941                                                div()
 7942                                                    .flex()
 7943                                                    .flex_col()
 7944                                                    .flex_1()
 7945                                                    .overflow_hidden()
 7946                                                    .child(
 7947                                                        h_flex()
 7948                                                            .flex_1()
 7949                                                            .when_some(paddings.0, |this, p| {
 7950                                                                this.child(p.border_r_1())
 7951                                                            })
 7952                                                            .child(self.center.render(
 7953                                                                self.zoomed.as_ref(),
 7954                                                                &PaneRenderContext {
 7955                                                                    follower_states:
 7956                                                                        &self.follower_states,
 7957                                                                    active_call: self.active_call(),
 7958                                                                    active_pane: &self.active_pane,
 7959                                                                    app_state: &self.app_state,
 7960                                                                    project: &self.project,
 7961                                                                    workspace: &self.weak_self,
 7962                                                                },
 7963                                                                window,
 7964                                                                cx,
 7965                                                            ))
 7966                                                            .when_some(paddings.1, |this, p| {
 7967                                                                this.child(p.border_l_1())
 7968                                                            }),
 7969                                                    )
 7970                                                    .children(self.render_dock(
 7971                                                        DockPosition::Bottom,
 7972                                                        &self.bottom_dock,
 7973                                                        window,
 7974                                                        cx,
 7975                                                    )),
 7976                                            )
 7977
 7978                                            .children(self.render_dock(
 7979                                                DockPosition::Right,
 7980                                                &self.right_dock,
 7981                                                window,
 7982                                                cx,
 7983                                            )),
 7984                                    }
 7985                                })
 7986                                .children(self.zoomed.as_ref().and_then(|view| {
 7987                                    let zoomed_view = view.upgrade()?;
 7988                                    let div = div()
 7989                                        .occlude()
 7990                                        .absolute()
 7991                                        .overflow_hidden()
 7992                                        .border_color(colors.border)
 7993                                        .bg(colors.background)
 7994                                        .child(zoomed_view)
 7995                                        .inset_0()
 7996                                        .shadow_lg();
 7997
 7998                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7999                                       return Some(div);
 8000                                    }
 8001
 8002                                    Some(match self.zoomed_position {
 8003                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8004                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8005                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8006                                        None => {
 8007                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8008                                        }
 8009                                    })
 8010                                }))
 8011                                .children(self.render_notifications(window, cx)),
 8012                        )
 8013                        .when(self.status_bar_visible(cx), |parent| {
 8014                            parent.child(self.status_bar.clone())
 8015                        })
 8016                        .child(self.toast_layer.clone()),
 8017                )
 8018    }
 8019}
 8020
 8021impl WorkspaceStore {
 8022    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8023        Self {
 8024            workspaces: Default::default(),
 8025            _subscriptions: vec![
 8026                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8027                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8028            ],
 8029            client,
 8030        }
 8031    }
 8032
 8033    pub fn update_followers(
 8034        &self,
 8035        project_id: Option<u64>,
 8036        update: proto::update_followers::Variant,
 8037        cx: &App,
 8038    ) -> Option<()> {
 8039        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8040        let room_id = active_call.0.room_id(cx)?;
 8041        self.client
 8042            .send(proto::UpdateFollowers {
 8043                room_id,
 8044                project_id,
 8045                variant: Some(update),
 8046            })
 8047            .log_err()
 8048    }
 8049
 8050    pub async fn handle_follow(
 8051        this: Entity<Self>,
 8052        envelope: TypedEnvelope<proto::Follow>,
 8053        mut cx: AsyncApp,
 8054    ) -> Result<proto::FollowResponse> {
 8055        this.update(&mut cx, |this, cx| {
 8056            let follower = Follower {
 8057                project_id: envelope.payload.project_id,
 8058                peer_id: envelope.original_sender_id()?,
 8059            };
 8060
 8061            let mut response = proto::FollowResponse::default();
 8062
 8063            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8064                let Some(workspace) = weak_workspace.upgrade() else {
 8065                    return false;
 8066                };
 8067                window_handle
 8068                    .update(cx, |_, window, cx| {
 8069                        workspace.update(cx, |workspace, cx| {
 8070                            let handler_response =
 8071                                workspace.handle_follow(follower.project_id, window, cx);
 8072                            if let Some(active_view) = handler_response.active_view
 8073                                && workspace.project.read(cx).remote_id() == follower.project_id
 8074                            {
 8075                                response.active_view = Some(active_view)
 8076                            }
 8077                        });
 8078                    })
 8079                    .is_ok()
 8080            });
 8081
 8082            Ok(response)
 8083        })
 8084    }
 8085
 8086    async fn handle_update_followers(
 8087        this: Entity<Self>,
 8088        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8089        mut cx: AsyncApp,
 8090    ) -> Result<()> {
 8091        let leader_id = envelope.original_sender_id()?;
 8092        let update = envelope.payload;
 8093
 8094        this.update(&mut cx, |this, cx| {
 8095            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8096                let Some(workspace) = weak_workspace.upgrade() else {
 8097                    return false;
 8098                };
 8099                window_handle
 8100                    .update(cx, |_, window, cx| {
 8101                        workspace.update(cx, |workspace, cx| {
 8102                            let project_id = workspace.project.read(cx).remote_id();
 8103                            if update.project_id != project_id && update.project_id.is_some() {
 8104                                return;
 8105                            }
 8106                            workspace.handle_update_followers(
 8107                                leader_id,
 8108                                update.clone(),
 8109                                window,
 8110                                cx,
 8111                            );
 8112                        });
 8113                    })
 8114                    .is_ok()
 8115            });
 8116            Ok(())
 8117        })
 8118    }
 8119
 8120    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8121        self.workspaces.iter().map(|(_, weak)| weak)
 8122    }
 8123
 8124    pub fn workspaces_with_windows(
 8125        &self,
 8126    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8127        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8128    }
 8129}
 8130
 8131impl ViewId {
 8132    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8133        Ok(Self {
 8134            creator: message
 8135                .creator
 8136                .map(CollaboratorId::PeerId)
 8137                .context("creator is missing")?,
 8138            id: message.id,
 8139        })
 8140    }
 8141
 8142    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8143        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8144            Some(proto::ViewId {
 8145                creator: Some(peer_id),
 8146                id: self.id,
 8147            })
 8148        } else {
 8149            None
 8150        }
 8151    }
 8152}
 8153
 8154impl FollowerState {
 8155    fn pane(&self) -> &Entity<Pane> {
 8156        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8157    }
 8158}
 8159
 8160pub trait WorkspaceHandle {
 8161    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8162}
 8163
 8164impl WorkspaceHandle for Entity<Workspace> {
 8165    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8166        self.read(cx)
 8167            .worktrees(cx)
 8168            .flat_map(|worktree| {
 8169                let worktree_id = worktree.read(cx).id();
 8170                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8171                    worktree_id,
 8172                    path: f.path.clone(),
 8173                })
 8174            })
 8175            .collect::<Vec<_>>()
 8176    }
 8177}
 8178
 8179pub async fn last_opened_workspace_location(
 8180    fs: &dyn fs::Fs,
 8181) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8182    DB.last_workspace(fs)
 8183        .await
 8184        .log_err()
 8185        .flatten()
 8186        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8187}
 8188
 8189pub async fn last_session_workspace_locations(
 8190    last_session_id: &str,
 8191    last_session_window_stack: Option<Vec<WindowId>>,
 8192    fs: &dyn fs::Fs,
 8193) -> Option<Vec<SessionWorkspace>> {
 8194    DB.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8195        .await
 8196        .log_err()
 8197}
 8198
 8199pub struct MultiWorkspaceRestoreResult {
 8200    pub window_handle: WindowHandle<MultiWorkspace>,
 8201    pub errors: Vec<anyhow::Error>,
 8202}
 8203
 8204pub async fn restore_multiworkspace(
 8205    multi_workspace: SerializedMultiWorkspace,
 8206    app_state: Arc<AppState>,
 8207    cx: &mut AsyncApp,
 8208) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 8209    let SerializedMultiWorkspace {
 8210        workspaces,
 8211        state,
 8212        id: window_id,
 8213    } = multi_workspace;
 8214    let mut group_iter = workspaces.into_iter();
 8215    let first = group_iter
 8216        .next()
 8217        .context("window group must not be empty")?;
 8218
 8219    let window_handle = if first.paths.is_empty() {
 8220        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8221            .await?
 8222    } else {
 8223        let OpenResult { window, .. } = cx
 8224            .update(|cx| {
 8225                Workspace::new_local(
 8226                    first.paths.paths().to_vec(),
 8227                    app_state.clone(),
 8228                    None,
 8229                    None,
 8230                    None,
 8231                    true,
 8232                    cx,
 8233                )
 8234            })
 8235            .await?;
 8236        window
 8237    };
 8238
 8239    let mut errors = Vec::new();
 8240
 8241    for session_workspace in group_iter {
 8242        let error = if session_workspace.paths.is_empty() {
 8243            cx.update(|cx| {
 8244                open_workspace_by_id(
 8245                    session_workspace.workspace_id,
 8246                    app_state.clone(),
 8247                    Some(window_handle),
 8248                    cx,
 8249                )
 8250            })
 8251            .await
 8252            .err()
 8253        } else {
 8254            cx.update(|cx| {
 8255                Workspace::new_local(
 8256                    session_workspace.paths.paths().to_vec(),
 8257                    app_state.clone(),
 8258                    Some(window_handle),
 8259                    None,
 8260                    None,
 8261                    true,
 8262                    cx,
 8263                )
 8264            })
 8265            .await
 8266            .err()
 8267        };
 8268
 8269        if let Some(error) = error {
 8270            errors.push(error);
 8271        }
 8272    }
 8273
 8274    if let Some(target_id) = state.active_workspace_id {
 8275        window_handle
 8276            .update(cx, |multi_workspace, window, cx| {
 8277                multi_workspace.set_database_id(window_id);
 8278                let target_index = multi_workspace
 8279                    .workspaces()
 8280                    .iter()
 8281                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8282                if let Some(index) = target_index {
 8283                    multi_workspace.activate_index(index, window, cx);
 8284                } else if !multi_workspace.workspaces().is_empty() {
 8285                    multi_workspace.activate_index(0, window, cx);
 8286                }
 8287            })
 8288            .ok();
 8289    } else {
 8290        window_handle
 8291            .update(cx, |multi_workspace, window, cx| {
 8292                if !multi_workspace.workspaces().is_empty() {
 8293                    multi_workspace.activate_index(0, window, cx);
 8294                }
 8295            })
 8296            .ok();
 8297    }
 8298
 8299    window_handle
 8300        .update(cx, |_, window, _cx| {
 8301            window.activate_window();
 8302        })
 8303        .ok();
 8304
 8305    Ok(MultiWorkspaceRestoreResult {
 8306        window_handle,
 8307        errors,
 8308    })
 8309}
 8310
 8311actions!(
 8312    collab,
 8313    [
 8314        /// Opens the channel notes for the current call.
 8315        ///
 8316        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8317        /// channel in the collab panel.
 8318        ///
 8319        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8320        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8321        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8322        OpenChannelNotes,
 8323        /// Mutes your microphone.
 8324        Mute,
 8325        /// Deafens yourself (mute both microphone and speakers).
 8326        Deafen,
 8327        /// Leaves the current call.
 8328        LeaveCall,
 8329        /// Shares the current project with collaborators.
 8330        ShareProject,
 8331        /// Shares your screen with collaborators.
 8332        ScreenShare,
 8333        /// Copies the current room name and session id for debugging purposes.
 8334        CopyRoomId,
 8335    ]
 8336);
 8337
 8338/// Opens the channel notes for a specific channel by its ID.
 8339#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8340#[action(namespace = collab)]
 8341#[serde(deny_unknown_fields)]
 8342pub struct OpenChannelNotesById {
 8343    pub channel_id: u64,
 8344}
 8345
 8346actions!(
 8347    zed,
 8348    [
 8349        /// Opens the Zed log file.
 8350        OpenLog,
 8351        /// Reveals the Zed log file in the system file manager.
 8352        RevealLogInFileManager
 8353    ]
 8354);
 8355
 8356async fn join_channel_internal(
 8357    channel_id: ChannelId,
 8358    app_state: &Arc<AppState>,
 8359    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8360    requesting_workspace: Option<WeakEntity<Workspace>>,
 8361    active_call: &dyn AnyActiveCall,
 8362    cx: &mut AsyncApp,
 8363) -> Result<bool> {
 8364    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8365        if !active_call.is_in_room(cx) {
 8366            return (false, false);
 8367        }
 8368
 8369        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8370        let should_prompt = active_call.is_sharing_project(cx)
 8371            && active_call.has_remote_participants(cx)
 8372            && !already_in_channel;
 8373        (should_prompt, already_in_channel)
 8374    });
 8375
 8376    if already_in_channel {
 8377        let task = cx.update(|cx| {
 8378            if let Some((project, host)) = active_call.most_active_project(cx) {
 8379                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8380            } else {
 8381                None
 8382            }
 8383        });
 8384        if let Some(task) = task {
 8385            task.await?;
 8386        }
 8387        return anyhow::Ok(true);
 8388    }
 8389
 8390    if should_prompt {
 8391        if let Some(multi_workspace) = requesting_window {
 8392            let answer = multi_workspace
 8393                .update(cx, |_, window, cx| {
 8394                    window.prompt(
 8395                        PromptLevel::Warning,
 8396                        "Do you want to switch channels?",
 8397                        Some("Leaving this call will unshare your current project."),
 8398                        &["Yes, Join Channel", "Cancel"],
 8399                        cx,
 8400                    )
 8401                })?
 8402                .await;
 8403
 8404            if answer == Ok(1) {
 8405                return Ok(false);
 8406            }
 8407        } else {
 8408            return Ok(false);
 8409        }
 8410    }
 8411
 8412    let client = cx.update(|cx| active_call.client(cx));
 8413
 8414    let mut client_status = client.status();
 8415
 8416    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8417    'outer: loop {
 8418        let Some(status) = client_status.recv().await else {
 8419            anyhow::bail!("error connecting");
 8420        };
 8421
 8422        match status {
 8423            Status::Connecting
 8424            | Status::Authenticating
 8425            | Status::Authenticated
 8426            | Status::Reconnecting
 8427            | Status::Reauthenticating
 8428            | Status::Reauthenticated => continue,
 8429            Status::Connected { .. } => break 'outer,
 8430            Status::SignedOut | Status::AuthenticationError => {
 8431                return Err(ErrorCode::SignedOut.into());
 8432            }
 8433            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8434            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8435                return Err(ErrorCode::Disconnected.into());
 8436            }
 8437        }
 8438    }
 8439
 8440    let joined = cx
 8441        .update(|cx| active_call.join_channel(channel_id, cx))
 8442        .await?;
 8443
 8444    if !joined {
 8445        return anyhow::Ok(true);
 8446    }
 8447
 8448    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8449
 8450    let task = cx.update(|cx| {
 8451        if let Some((project, host)) = active_call.most_active_project(cx) {
 8452            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8453        }
 8454
 8455        // If you are the first to join a channel, see if you should share your project.
 8456        if !active_call.has_remote_participants(cx)
 8457            && !active_call.local_participant_is_guest(cx)
 8458            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8459        {
 8460            let project = workspace.update(cx, |workspace, cx| {
 8461                let project = workspace.project.read(cx);
 8462
 8463                if !active_call.share_on_join(cx) {
 8464                    return None;
 8465                }
 8466
 8467                if (project.is_local() || project.is_via_remote_server())
 8468                    && project.visible_worktrees(cx).any(|tree| {
 8469                        tree.read(cx)
 8470                            .root_entry()
 8471                            .is_some_and(|entry| entry.is_dir())
 8472                    })
 8473                {
 8474                    Some(workspace.project.clone())
 8475                } else {
 8476                    None
 8477                }
 8478            });
 8479            if let Some(project) = project {
 8480                let share_task = active_call.share_project(project, cx);
 8481                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8482                    share_task.await?;
 8483                    Ok(())
 8484                }));
 8485            }
 8486        }
 8487
 8488        None
 8489    });
 8490    if let Some(task) = task {
 8491        task.await?;
 8492        return anyhow::Ok(true);
 8493    }
 8494    anyhow::Ok(false)
 8495}
 8496
 8497pub fn join_channel(
 8498    channel_id: ChannelId,
 8499    app_state: Arc<AppState>,
 8500    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8501    requesting_workspace: Option<WeakEntity<Workspace>>,
 8502    cx: &mut App,
 8503) -> Task<Result<()>> {
 8504    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8505    cx.spawn(async move |cx| {
 8506        let result = join_channel_internal(
 8507            channel_id,
 8508            &app_state,
 8509            requesting_window,
 8510            requesting_workspace,
 8511            &*active_call.0,
 8512            cx,
 8513        )
 8514        .await;
 8515
 8516        // join channel succeeded, and opened a window
 8517        if matches!(result, Ok(true)) {
 8518            return anyhow::Ok(());
 8519        }
 8520
 8521        // find an existing workspace to focus and show call controls
 8522        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8523        if active_window.is_none() {
 8524            // no open workspaces, make one to show the error in (blergh)
 8525            let OpenResult {
 8526                window: window_handle,
 8527                ..
 8528            } = cx
 8529                .update(|cx| {
 8530                    Workspace::new_local(
 8531                        vec![],
 8532                        app_state.clone(),
 8533                        requesting_window,
 8534                        None,
 8535                        None,
 8536                        true,
 8537                        cx,
 8538                    )
 8539                })
 8540                .await?;
 8541
 8542            window_handle
 8543                .update(cx, |_, window, _cx| {
 8544                    window.activate_window();
 8545                })
 8546                .ok();
 8547
 8548            if result.is_ok() {
 8549                cx.update(|cx| {
 8550                    cx.dispatch_action(&OpenChannelNotes);
 8551                });
 8552            }
 8553
 8554            active_window = Some(window_handle);
 8555        }
 8556
 8557        if let Err(err) = result {
 8558            log::error!("failed to join channel: {}", err);
 8559            if let Some(active_window) = active_window {
 8560                active_window
 8561                    .update(cx, |_, window, cx| {
 8562                        let detail: SharedString = match err.error_code() {
 8563                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8564                            ErrorCode::UpgradeRequired => concat!(
 8565                                "Your are running an unsupported version of Zed. ",
 8566                                "Please update to continue."
 8567                            )
 8568                            .into(),
 8569                            ErrorCode::NoSuchChannel => concat!(
 8570                                "No matching channel was found. ",
 8571                                "Please check the link and try again."
 8572                            )
 8573                            .into(),
 8574                            ErrorCode::Forbidden => concat!(
 8575                                "This channel is private, and you do not have access. ",
 8576                                "Please ask someone to add you and try again."
 8577                            )
 8578                            .into(),
 8579                            ErrorCode::Disconnected => {
 8580                                "Please check your internet connection and try again.".into()
 8581                            }
 8582                            _ => format!("{}\n\nPlease try again.", err).into(),
 8583                        };
 8584                        window.prompt(
 8585                            PromptLevel::Critical,
 8586                            "Failed to join channel",
 8587                            Some(&detail),
 8588                            &["Ok"],
 8589                            cx,
 8590                        )
 8591                    })?
 8592                    .await
 8593                    .ok();
 8594            }
 8595        }
 8596
 8597        // return ok, we showed the error to the user.
 8598        anyhow::Ok(())
 8599    })
 8600}
 8601
 8602pub async fn get_any_active_multi_workspace(
 8603    app_state: Arc<AppState>,
 8604    mut cx: AsyncApp,
 8605) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8606    // find an existing workspace to focus and show call controls
 8607    let active_window = activate_any_workspace_window(&mut cx);
 8608    if active_window.is_none() {
 8609        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, true, cx))
 8610            .await?;
 8611    }
 8612    activate_any_workspace_window(&mut cx).context("could not open zed")
 8613}
 8614
 8615fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8616    cx.update(|cx| {
 8617        if let Some(workspace_window) = cx
 8618            .active_window()
 8619            .and_then(|window| window.downcast::<MultiWorkspace>())
 8620        {
 8621            return Some(workspace_window);
 8622        }
 8623
 8624        for window in cx.windows() {
 8625            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8626                workspace_window
 8627                    .update(cx, |_, window, _| window.activate_window())
 8628                    .ok();
 8629                return Some(workspace_window);
 8630            }
 8631        }
 8632        None
 8633    })
 8634}
 8635
 8636pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8637    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 8638}
 8639
 8640pub fn workspace_windows_for_location(
 8641    serialized_location: &SerializedWorkspaceLocation,
 8642    cx: &App,
 8643) -> Vec<WindowHandle<MultiWorkspace>> {
 8644    cx.windows()
 8645        .into_iter()
 8646        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8647        .filter(|multi_workspace| {
 8648            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 8649                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 8650                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 8651                }
 8652                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 8653                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 8654                    a.distro_name == b.distro_name
 8655                }
 8656                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 8657                    a.container_id == b.container_id
 8658                }
 8659                #[cfg(any(test, feature = "test-support"))]
 8660                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 8661                    a.id == b.id
 8662                }
 8663                _ => false,
 8664            };
 8665
 8666            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8667                multi_workspace.workspaces().iter().any(|workspace| {
 8668                    match workspace.read(cx).workspace_location(cx) {
 8669                        WorkspaceLocation::Location(location, _) => {
 8670                            match (&location, serialized_location) {
 8671                                (
 8672                                    SerializedWorkspaceLocation::Local,
 8673                                    SerializedWorkspaceLocation::Local,
 8674                                ) => true,
 8675                                (
 8676                                    SerializedWorkspaceLocation::Remote(a),
 8677                                    SerializedWorkspaceLocation::Remote(b),
 8678                                ) => same_host(a, b),
 8679                                _ => false,
 8680                            }
 8681                        }
 8682                        _ => false,
 8683                    }
 8684                })
 8685            })
 8686        })
 8687        .collect()
 8688}
 8689
 8690pub async fn find_existing_workspace(
 8691    abs_paths: &[PathBuf],
 8692    open_options: &OpenOptions,
 8693    location: &SerializedWorkspaceLocation,
 8694    cx: &mut AsyncApp,
 8695) -> (
 8696    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 8697    OpenVisible,
 8698) {
 8699    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 8700    let mut open_visible = OpenVisible::All;
 8701    let mut best_match = None;
 8702
 8703    if open_options.open_new_workspace != Some(true) {
 8704        cx.update(|cx| {
 8705            for window in workspace_windows_for_location(location, cx) {
 8706                if let Ok(multi_workspace) = window.read(cx) {
 8707                    for workspace in multi_workspace.workspaces() {
 8708                        let project = workspace.read(cx).project.read(cx);
 8709                        let m = project.visibility_for_paths(
 8710                            abs_paths,
 8711                            open_options.open_new_workspace == None,
 8712                            cx,
 8713                        );
 8714                        if m > best_match {
 8715                            existing = Some((window, workspace.clone()));
 8716                            best_match = m;
 8717                        } else if best_match.is_none()
 8718                            && open_options.open_new_workspace == Some(false)
 8719                        {
 8720                            existing = Some((window, workspace.clone()))
 8721                        }
 8722                    }
 8723                }
 8724            }
 8725        });
 8726
 8727        let all_paths_are_files = existing
 8728            .as_ref()
 8729            .and_then(|(_, target_workspace)| {
 8730                cx.update(|cx| {
 8731                    let workspace = target_workspace.read(cx);
 8732                    let project = workspace.project.read(cx);
 8733                    let path_style = workspace.path_style(cx);
 8734                    Some(!abs_paths.iter().any(|path| {
 8735                        let path = util::paths::SanitizedPath::new(path);
 8736                        project.worktrees(cx).any(|worktree| {
 8737                            let worktree = worktree.read(cx);
 8738                            let abs_path = worktree.abs_path();
 8739                            path_style
 8740                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 8741                                .and_then(|rel| worktree.entry_for_path(&rel))
 8742                                .is_some_and(|e| e.is_dir())
 8743                        })
 8744                    }))
 8745                })
 8746            })
 8747            .unwrap_or(false);
 8748
 8749        if open_options.open_new_workspace.is_none()
 8750            && existing.is_some()
 8751            && open_options.wait
 8752            && all_paths_are_files
 8753        {
 8754            cx.update(|cx| {
 8755                let windows = workspace_windows_for_location(location, cx);
 8756                let window = cx
 8757                    .active_window()
 8758                    .and_then(|window| window.downcast::<MultiWorkspace>())
 8759                    .filter(|window| windows.contains(window))
 8760                    .or_else(|| windows.into_iter().next());
 8761                if let Some(window) = window {
 8762                    if let Ok(multi_workspace) = window.read(cx) {
 8763                        let active_workspace = multi_workspace.workspace().clone();
 8764                        existing = Some((window, active_workspace));
 8765                        open_visible = OpenVisible::None;
 8766                    }
 8767                }
 8768            });
 8769        }
 8770    }
 8771    (existing, open_visible)
 8772}
 8773
 8774#[derive(Default, Clone)]
 8775pub struct OpenOptions {
 8776    pub visible: Option<OpenVisible>,
 8777    pub focus: Option<bool>,
 8778    pub open_new_workspace: Option<bool>,
 8779    pub wait: bool,
 8780    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 8781    pub env: Option<HashMap<String, String>>,
 8782}
 8783
 8784/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 8785/// or [`Workspace::open_workspace_for_paths`].
 8786pub struct OpenResult {
 8787    pub window: WindowHandle<MultiWorkspace>,
 8788    pub workspace: Entity<Workspace>,
 8789    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8790}
 8791
 8792/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 8793pub fn open_workspace_by_id(
 8794    workspace_id: WorkspaceId,
 8795    app_state: Arc<AppState>,
 8796    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8797    cx: &mut App,
 8798) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 8799    let project_handle = Project::local(
 8800        app_state.client.clone(),
 8801        app_state.node_runtime.clone(),
 8802        app_state.user_store.clone(),
 8803        app_state.languages.clone(),
 8804        app_state.fs.clone(),
 8805        None,
 8806        project::LocalProjectFlags {
 8807            init_worktree_trust: true,
 8808            ..project::LocalProjectFlags::default()
 8809        },
 8810        cx,
 8811    );
 8812
 8813    cx.spawn(async move |cx| {
 8814        let serialized_workspace = persistence::DB
 8815            .workspace_for_id(workspace_id)
 8816            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 8817
 8818        let centered_layout = serialized_workspace.centered_layout;
 8819
 8820        let (window, workspace) = if let Some(window) = requesting_window {
 8821            let workspace = window.update(cx, |multi_workspace, window, cx| {
 8822                let workspace = cx.new(|cx| {
 8823                    let mut workspace = Workspace::new(
 8824                        Some(workspace_id),
 8825                        project_handle.clone(),
 8826                        app_state.clone(),
 8827                        window,
 8828                        cx,
 8829                    );
 8830                    workspace.centered_layout = centered_layout;
 8831                    workspace
 8832                });
 8833                multi_workspace.add_workspace(workspace.clone(), cx);
 8834                workspace
 8835            })?;
 8836            (window, workspace)
 8837        } else {
 8838            let window_bounds_override = window_bounds_env_override();
 8839
 8840            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 8841                (Some(WindowBounds::Windowed(bounds)), None)
 8842            } else if let Some(display) = serialized_workspace.display
 8843                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 8844            {
 8845                (Some(bounds.0), Some(display))
 8846            } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 8847                (Some(bounds), Some(display))
 8848            } else {
 8849                (None, None)
 8850            };
 8851
 8852            let options = cx.update(|cx| {
 8853                let mut options = (app_state.build_window_options)(display, cx);
 8854                options.window_bounds = window_bounds;
 8855                options
 8856            });
 8857
 8858            let window = cx.open_window(options, {
 8859                let app_state = app_state.clone();
 8860                let project_handle = project_handle.clone();
 8861                move |window, cx| {
 8862                    let workspace = cx.new(|cx| {
 8863                        let mut workspace = Workspace::new(
 8864                            Some(workspace_id),
 8865                            project_handle,
 8866                            app_state,
 8867                            window,
 8868                            cx,
 8869                        );
 8870                        workspace.centered_layout = centered_layout;
 8871                        workspace
 8872                    });
 8873                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 8874                }
 8875            })?;
 8876
 8877            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 8878                multi_workspace.workspace().clone()
 8879            })?;
 8880
 8881            (window, workspace)
 8882        };
 8883
 8884        notify_if_database_failed(window, cx);
 8885
 8886        // Restore items from the serialized workspace
 8887        window
 8888            .update(cx, |_, window, cx| {
 8889                workspace.update(cx, |_workspace, cx| {
 8890                    open_items(Some(serialized_workspace), vec![], window, cx)
 8891                })
 8892            })?
 8893            .await?;
 8894
 8895        window.update(cx, |_, window, cx| {
 8896            workspace.update(cx, |workspace, cx| {
 8897                workspace.serialize_workspace(window, cx);
 8898            });
 8899        })?;
 8900
 8901        Ok(window)
 8902    })
 8903}
 8904
 8905#[allow(clippy::type_complexity)]
 8906pub fn open_paths(
 8907    abs_paths: &[PathBuf],
 8908    app_state: Arc<AppState>,
 8909    open_options: OpenOptions,
 8910    cx: &mut App,
 8911) -> Task<anyhow::Result<OpenResult>> {
 8912    let abs_paths = abs_paths.to_vec();
 8913    #[cfg(target_os = "windows")]
 8914    let wsl_path = abs_paths
 8915        .iter()
 8916        .find_map(|p| util::paths::WslPath::from_path(p));
 8917
 8918    cx.spawn(async move |cx| {
 8919        let (mut existing, mut open_visible) = find_existing_workspace(
 8920            &abs_paths,
 8921            &open_options,
 8922            &SerializedWorkspaceLocation::Local,
 8923            cx,
 8924        )
 8925        .await;
 8926
 8927        // Fallback: if no workspace contains the paths and all paths are files,
 8928        // prefer an existing local workspace window (active window first).
 8929        if open_options.open_new_workspace.is_none() && existing.is_none() {
 8930            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8931            let all_metadatas = futures::future::join_all(all_paths)
 8932                .await
 8933                .into_iter()
 8934                .filter_map(|result| result.ok().flatten())
 8935                .collect::<Vec<_>>();
 8936
 8937            if all_metadatas.iter().all(|file| !file.is_dir) {
 8938                cx.update(|cx| {
 8939                    let windows = workspace_windows_for_location(
 8940                        &SerializedWorkspaceLocation::Local,
 8941                        cx,
 8942                    );
 8943                    let window = cx
 8944                        .active_window()
 8945                        .and_then(|window| window.downcast::<MultiWorkspace>())
 8946                        .filter(|window| windows.contains(window))
 8947                        .or_else(|| windows.into_iter().next());
 8948                    if let Some(window) = window {
 8949                        if let Ok(multi_workspace) = window.read(cx) {
 8950                            let active_workspace = multi_workspace.workspace().clone();
 8951                            existing = Some((window, active_workspace));
 8952                            open_visible = OpenVisible::None;
 8953                        }
 8954                    }
 8955                });
 8956            }
 8957        }
 8958
 8959        let result = if let Some((existing, target_workspace)) = existing {
 8960            let open_task = existing
 8961                .update(cx, |multi_workspace, window, cx| {
 8962                    window.activate_window();
 8963                    multi_workspace.activate(target_workspace.clone(), cx);
 8964                    target_workspace.update(cx, |workspace, cx| {
 8965                        workspace.open_paths(
 8966                            abs_paths,
 8967                            OpenOptions {
 8968                                visible: Some(open_visible),
 8969                                ..Default::default()
 8970                            },
 8971                            None,
 8972                            window,
 8973                            cx,
 8974                        )
 8975                    })
 8976                })?
 8977                .await;
 8978
 8979            _ = existing.update(cx, |multi_workspace, _, cx| {
 8980                let workspace = multi_workspace.workspace().clone();
 8981                workspace.update(cx, |workspace, cx| {
 8982                    for item in open_task.iter().flatten() {
 8983                        if let Err(e) = item {
 8984                            workspace.show_error(&e, cx);
 8985                        }
 8986                    }
 8987                });
 8988            });
 8989
 8990            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 8991        } else {
 8992            let result = cx
 8993                .update(move |cx| {
 8994                    Workspace::new_local(
 8995                        abs_paths,
 8996                        app_state.clone(),
 8997                        open_options.replace_window,
 8998                        open_options.env,
 8999                        None,
 9000                        true,
 9001                        cx,
 9002                    )
 9003                })
 9004                .await;
 9005
 9006            if let Ok(ref result) = result {
 9007                result.window
 9008                    .update(cx, |_, window, _cx| {
 9009                        window.activate_window();
 9010                    })
 9011                    .log_err();
 9012            }
 9013
 9014            result
 9015        };
 9016
 9017        #[cfg(target_os = "windows")]
 9018        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9019            && let Ok(ref result) = result
 9020        {
 9021            result.window
 9022                .update(cx, move |multi_workspace, _window, cx| {
 9023                    struct OpenInWsl;
 9024                    let workspace = multi_workspace.workspace().clone();
 9025                    workspace.update(cx, |workspace, cx| {
 9026                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9027                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9028                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9029                            cx.new(move |cx| {
 9030                                MessageNotification::new(msg, cx)
 9031                                    .primary_message("Open in WSL")
 9032                                    .primary_icon(IconName::FolderOpen)
 9033                                    .primary_on_click(move |window, cx| {
 9034                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9035                                                distro: remote::WslConnectionOptions {
 9036                                                        distro_name: distro.clone(),
 9037                                                    user: None,
 9038                                                },
 9039                                                paths: vec![path.clone().into()],
 9040                                            }), cx)
 9041                                    })
 9042                            })
 9043                        });
 9044                    });
 9045                })
 9046                .unwrap();
 9047        };
 9048        result
 9049    })
 9050}
 9051
 9052pub fn open_new(
 9053    open_options: OpenOptions,
 9054    app_state: Arc<AppState>,
 9055    cx: &mut App,
 9056    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9057) -> Task<anyhow::Result<()>> {
 9058    let task = Workspace::new_local(
 9059        Vec::new(),
 9060        app_state,
 9061        open_options.replace_window,
 9062        open_options.env,
 9063        Some(Box::new(init)),
 9064        true,
 9065        cx,
 9066    );
 9067    cx.spawn(async move |cx| {
 9068        let OpenResult { window, .. } = task.await?;
 9069        window
 9070            .update(cx, |_, window, _cx| {
 9071                window.activate_window();
 9072            })
 9073            .ok();
 9074        Ok(())
 9075    })
 9076}
 9077
 9078pub fn create_and_open_local_file(
 9079    path: &'static Path,
 9080    window: &mut Window,
 9081    cx: &mut Context<Workspace>,
 9082    default_content: impl 'static + Send + FnOnce() -> Rope,
 9083) -> Task<Result<Box<dyn ItemHandle>>> {
 9084    cx.spawn_in(window, async move |workspace, cx| {
 9085        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9086        if !fs.is_file(path).await {
 9087            fs.create_file(path, Default::default()).await?;
 9088            fs.save(path, &default_content(), Default::default())
 9089                .await?;
 9090        }
 9091
 9092        workspace
 9093            .update_in(cx, |workspace, window, cx| {
 9094                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9095                    let path = workspace
 9096                        .project
 9097                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9098                    cx.spawn_in(window, async move |workspace, cx| {
 9099                        let path = path.await?;
 9100                        let mut items = workspace
 9101                            .update_in(cx, |workspace, window, cx| {
 9102                                workspace.open_paths(
 9103                                    vec![path.to_path_buf()],
 9104                                    OpenOptions {
 9105                                        visible: Some(OpenVisible::None),
 9106                                        ..Default::default()
 9107                                    },
 9108                                    None,
 9109                                    window,
 9110                                    cx,
 9111                                )
 9112                            })?
 9113                            .await;
 9114                        let item = items.pop().flatten();
 9115                        item.with_context(|| format!("path {path:?} is not a file"))?
 9116                    })
 9117                })
 9118            })?
 9119            .await?
 9120            .await
 9121    })
 9122}
 9123
 9124pub fn open_remote_project_with_new_connection(
 9125    window: WindowHandle<MultiWorkspace>,
 9126    remote_connection: Arc<dyn RemoteConnection>,
 9127    cancel_rx: oneshot::Receiver<()>,
 9128    delegate: Arc<dyn RemoteClientDelegate>,
 9129    app_state: Arc<AppState>,
 9130    paths: Vec<PathBuf>,
 9131    cx: &mut App,
 9132) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9133    cx.spawn(async move |cx| {
 9134        let (workspace_id, serialized_workspace) =
 9135            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9136                .await?;
 9137
 9138        let session = match cx
 9139            .update(|cx| {
 9140                remote::RemoteClient::new(
 9141                    ConnectionIdentifier::Workspace(workspace_id.0),
 9142                    remote_connection,
 9143                    cancel_rx,
 9144                    delegate,
 9145                    cx,
 9146                )
 9147            })
 9148            .await?
 9149        {
 9150            Some(result) => result,
 9151            None => return Ok(Vec::new()),
 9152        };
 9153
 9154        let project = cx.update(|cx| {
 9155            project::Project::remote(
 9156                session,
 9157                app_state.client.clone(),
 9158                app_state.node_runtime.clone(),
 9159                app_state.user_store.clone(),
 9160                app_state.languages.clone(),
 9161                app_state.fs.clone(),
 9162                true,
 9163                cx,
 9164            )
 9165        });
 9166
 9167        open_remote_project_inner(
 9168            project,
 9169            paths,
 9170            workspace_id,
 9171            serialized_workspace,
 9172            app_state,
 9173            window,
 9174            cx,
 9175        )
 9176        .await
 9177    })
 9178}
 9179
 9180pub fn open_remote_project_with_existing_connection(
 9181    connection_options: RemoteConnectionOptions,
 9182    project: Entity<Project>,
 9183    paths: Vec<PathBuf>,
 9184    app_state: Arc<AppState>,
 9185    window: WindowHandle<MultiWorkspace>,
 9186    cx: &mut AsyncApp,
 9187) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9188    cx.spawn(async move |cx| {
 9189        let (workspace_id, serialized_workspace) =
 9190            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9191
 9192        open_remote_project_inner(
 9193            project,
 9194            paths,
 9195            workspace_id,
 9196            serialized_workspace,
 9197            app_state,
 9198            window,
 9199            cx,
 9200        )
 9201        .await
 9202    })
 9203}
 9204
 9205async fn open_remote_project_inner(
 9206    project: Entity<Project>,
 9207    paths: Vec<PathBuf>,
 9208    workspace_id: WorkspaceId,
 9209    serialized_workspace: Option<SerializedWorkspace>,
 9210    app_state: Arc<AppState>,
 9211    window: WindowHandle<MultiWorkspace>,
 9212    cx: &mut AsyncApp,
 9213) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9214    let toolchains = DB.toolchains(workspace_id).await?;
 9215    for (toolchain, worktree_path, path) in toolchains {
 9216        project
 9217            .update(cx, |this, cx| {
 9218                let Some(worktree_id) =
 9219                    this.find_worktree(&worktree_path, cx)
 9220                        .and_then(|(worktree, rel_path)| {
 9221                            if rel_path.is_empty() {
 9222                                Some(worktree.read(cx).id())
 9223                            } else {
 9224                                None
 9225                            }
 9226                        })
 9227                else {
 9228                    return Task::ready(None);
 9229                };
 9230
 9231                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9232            })
 9233            .await;
 9234    }
 9235    let mut project_paths_to_open = vec![];
 9236    let mut project_path_errors = vec![];
 9237
 9238    for path in paths {
 9239        let result = cx
 9240            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9241            .await;
 9242        match result {
 9243            Ok((_, project_path)) => {
 9244                project_paths_to_open.push((path.clone(), Some(project_path)));
 9245            }
 9246            Err(error) => {
 9247                project_path_errors.push(error);
 9248            }
 9249        };
 9250    }
 9251
 9252    if project_paths_to_open.is_empty() {
 9253        return Err(project_path_errors.pop().context("no paths given")?);
 9254    }
 9255
 9256    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9257        telemetry::event!("SSH Project Opened");
 9258
 9259        let new_workspace = cx.new(|cx| {
 9260            let mut workspace =
 9261                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9262            workspace.update_history(cx);
 9263
 9264            if let Some(ref serialized) = serialized_workspace {
 9265                workspace.centered_layout = serialized.centered_layout;
 9266            }
 9267
 9268            workspace
 9269        });
 9270
 9271        multi_workspace.activate(new_workspace.clone(), cx);
 9272        new_workspace
 9273    })?;
 9274
 9275    let items = window
 9276        .update(cx, |_, window, cx| {
 9277            window.activate_window();
 9278            workspace.update(cx, |_workspace, cx| {
 9279                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9280            })
 9281        })?
 9282        .await?;
 9283
 9284    workspace.update(cx, |workspace, cx| {
 9285        for error in project_path_errors {
 9286            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9287                if let Some(path) = error.error_tag("path") {
 9288                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9289                }
 9290            } else {
 9291                workspace.show_error(&error, cx)
 9292            }
 9293        }
 9294    });
 9295
 9296    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9297}
 9298
 9299fn deserialize_remote_project(
 9300    connection_options: RemoteConnectionOptions,
 9301    paths: Vec<PathBuf>,
 9302    cx: &AsyncApp,
 9303) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9304    cx.background_spawn(async move {
 9305        let remote_connection_id = persistence::DB
 9306            .get_or_create_remote_connection(connection_options)
 9307            .await?;
 9308
 9309        let serialized_workspace =
 9310            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9311
 9312        let workspace_id = if let Some(workspace_id) =
 9313            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9314        {
 9315            workspace_id
 9316        } else {
 9317            persistence::DB.next_id().await?
 9318        };
 9319
 9320        Ok((workspace_id, serialized_workspace))
 9321    })
 9322}
 9323
 9324pub fn join_in_room_project(
 9325    project_id: u64,
 9326    follow_user_id: u64,
 9327    app_state: Arc<AppState>,
 9328    cx: &mut App,
 9329) -> Task<Result<()>> {
 9330    let windows = cx.windows();
 9331    cx.spawn(async move |cx| {
 9332        let existing_window_and_workspace: Option<(
 9333            WindowHandle<MultiWorkspace>,
 9334            Entity<Workspace>,
 9335        )> = windows.into_iter().find_map(|window_handle| {
 9336            window_handle
 9337                .downcast::<MultiWorkspace>()
 9338                .and_then(|window_handle| {
 9339                    window_handle
 9340                        .update(cx, |multi_workspace, _window, cx| {
 9341                            for workspace in multi_workspace.workspaces() {
 9342                                if workspace.read(cx).project().read(cx).remote_id()
 9343                                    == Some(project_id)
 9344                                {
 9345                                    return Some((window_handle, workspace.clone()));
 9346                                }
 9347                            }
 9348                            None
 9349                        })
 9350                        .unwrap_or(None)
 9351                })
 9352        });
 9353
 9354        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9355            existing_window_and_workspace
 9356        {
 9357            existing_window
 9358                .update(cx, |multi_workspace, _, cx| {
 9359                    multi_workspace.activate(target_workspace, cx);
 9360                })
 9361                .ok();
 9362            existing_window
 9363        } else {
 9364            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9365            let project = cx
 9366                .update(|cx| {
 9367                    active_call.0.join_project(
 9368                        project_id,
 9369                        app_state.languages.clone(),
 9370                        app_state.fs.clone(),
 9371                        cx,
 9372                    )
 9373                })
 9374                .await?;
 9375
 9376            let window_bounds_override = window_bounds_env_override();
 9377            cx.update(|cx| {
 9378                let mut options = (app_state.build_window_options)(None, cx);
 9379                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9380                cx.open_window(options, |window, cx| {
 9381                    let workspace = cx.new(|cx| {
 9382                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9383                    });
 9384                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9385                })
 9386            })?
 9387        };
 9388
 9389        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9390            cx.activate(true);
 9391            window.activate_window();
 9392
 9393            // We set the active workspace above, so this is the correct workspace.
 9394            let workspace = multi_workspace.workspace().clone();
 9395            workspace.update(cx, |workspace, cx| {
 9396                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9397                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9398                    .or_else(|| {
 9399                        // If we couldn't follow the given user, follow the host instead.
 9400                        let collaborator = workspace
 9401                            .project()
 9402                            .read(cx)
 9403                            .collaborators()
 9404                            .values()
 9405                            .find(|collaborator| collaborator.is_host)?;
 9406                        Some(collaborator.peer_id)
 9407                    });
 9408
 9409                if let Some(follow_peer_id) = follow_peer_id {
 9410                    workspace.follow(follow_peer_id, window, cx);
 9411                }
 9412            });
 9413        })?;
 9414
 9415        anyhow::Ok(())
 9416    })
 9417}
 9418
 9419pub fn reload(cx: &mut App) {
 9420    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9421    let mut workspace_windows = cx
 9422        .windows()
 9423        .into_iter()
 9424        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9425        .collect::<Vec<_>>();
 9426
 9427    // If multiple windows have unsaved changes, and need a save prompt,
 9428    // prompt in the active window before switching to a different window.
 9429    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9430
 9431    let mut prompt = None;
 9432    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9433        prompt = window
 9434            .update(cx, |_, window, cx| {
 9435                window.prompt(
 9436                    PromptLevel::Info,
 9437                    "Are you sure you want to restart?",
 9438                    None,
 9439                    &["Restart", "Cancel"],
 9440                    cx,
 9441                )
 9442            })
 9443            .ok();
 9444    }
 9445
 9446    cx.spawn(async move |cx| {
 9447        if let Some(prompt) = prompt {
 9448            let answer = prompt.await?;
 9449            if answer != 0 {
 9450                return anyhow::Ok(());
 9451            }
 9452        }
 9453
 9454        // If the user cancels any save prompt, then keep the app open.
 9455        for window in workspace_windows {
 9456            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9457                let workspace = multi_workspace.workspace().clone();
 9458                workspace.update(cx, |workspace, cx| {
 9459                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9460                })
 9461            }) && !should_close.await?
 9462            {
 9463                return anyhow::Ok(());
 9464            }
 9465        }
 9466        cx.update(|cx| cx.restart());
 9467        anyhow::Ok(())
 9468    })
 9469    .detach_and_log_err(cx);
 9470}
 9471
 9472fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9473    let mut parts = value.split(',');
 9474    let x: usize = parts.next()?.parse().ok()?;
 9475    let y: usize = parts.next()?.parse().ok()?;
 9476    Some(point(px(x as f32), px(y as f32)))
 9477}
 9478
 9479fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9480    let mut parts = value.split(',');
 9481    let width: usize = parts.next()?.parse().ok()?;
 9482    let height: usize = parts.next()?.parse().ok()?;
 9483    Some(size(px(width as f32), px(height as f32)))
 9484}
 9485
 9486/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9487/// appropriate.
 9488///
 9489/// The `border_radius_tiling` parameter allows overriding which corners get
 9490/// rounded, independently of the actual window tiling state. This is used
 9491/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9492/// we want square corners on the left (so the sidebar appears flush with the
 9493/// window edge) but we still need the shadow padding for proper visual
 9494/// appearance. Unlike actual window tiling, this only affects border radius -
 9495/// not padding or shadows.
 9496pub fn client_side_decorations(
 9497    element: impl IntoElement,
 9498    window: &mut Window,
 9499    cx: &mut App,
 9500    border_radius_tiling: Tiling,
 9501) -> Stateful<Div> {
 9502    const BORDER_SIZE: Pixels = px(1.0);
 9503    let decorations = window.window_decorations();
 9504    let tiling = match decorations {
 9505        Decorations::Server => Tiling::default(),
 9506        Decorations::Client { tiling } => tiling,
 9507    };
 9508
 9509    match decorations {
 9510        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9511        Decorations::Server => window.set_client_inset(px(0.0)),
 9512    }
 9513
 9514    struct GlobalResizeEdge(ResizeEdge);
 9515    impl Global for GlobalResizeEdge {}
 9516
 9517    div()
 9518        .id("window-backdrop")
 9519        .bg(transparent_black())
 9520        .map(|div| match decorations {
 9521            Decorations::Server => div,
 9522            Decorations::Client { .. } => div
 9523                .when(
 9524                    !(tiling.top
 9525                        || tiling.right
 9526                        || border_radius_tiling.top
 9527                        || border_radius_tiling.right),
 9528                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9529                )
 9530                .when(
 9531                    !(tiling.top
 9532                        || tiling.left
 9533                        || border_radius_tiling.top
 9534                        || border_radius_tiling.left),
 9535                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9536                )
 9537                .when(
 9538                    !(tiling.bottom
 9539                        || tiling.right
 9540                        || border_radius_tiling.bottom
 9541                        || border_radius_tiling.right),
 9542                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9543                )
 9544                .when(
 9545                    !(tiling.bottom
 9546                        || tiling.left
 9547                        || border_radius_tiling.bottom
 9548                        || border_radius_tiling.left),
 9549                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9550                )
 9551                .when(!tiling.top, |div| {
 9552                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9553                })
 9554                .when(!tiling.bottom, |div| {
 9555                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9556                })
 9557                .when(!tiling.left, |div| {
 9558                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9559                })
 9560                .when(!tiling.right, |div| {
 9561                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9562                })
 9563                .on_mouse_move(move |e, window, cx| {
 9564                    let size = window.window_bounds().get_bounds().size;
 9565                    let pos = e.position;
 9566
 9567                    let new_edge =
 9568                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9569
 9570                    let edge = cx.try_global::<GlobalResizeEdge>();
 9571                    if new_edge != edge.map(|edge| edge.0) {
 9572                        window
 9573                            .window_handle()
 9574                            .update(cx, |workspace, _, cx| {
 9575                                cx.notify(workspace.entity_id());
 9576                            })
 9577                            .ok();
 9578                    }
 9579                })
 9580                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9581                    let size = window.window_bounds().get_bounds().size;
 9582                    let pos = e.position;
 9583
 9584                    let edge = match resize_edge(
 9585                        pos,
 9586                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9587                        size,
 9588                        tiling,
 9589                    ) {
 9590                        Some(value) => value,
 9591                        None => return,
 9592                    };
 9593
 9594                    window.start_window_resize(edge);
 9595                }),
 9596        })
 9597        .size_full()
 9598        .child(
 9599            div()
 9600                .cursor(CursorStyle::Arrow)
 9601                .map(|div| match decorations {
 9602                    Decorations::Server => div,
 9603                    Decorations::Client { .. } => div
 9604                        .border_color(cx.theme().colors().border)
 9605                        .when(
 9606                            !(tiling.top
 9607                                || tiling.right
 9608                                || border_radius_tiling.top
 9609                                || border_radius_tiling.right),
 9610                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9611                        )
 9612                        .when(
 9613                            !(tiling.top
 9614                                || tiling.left
 9615                                || border_radius_tiling.top
 9616                                || border_radius_tiling.left),
 9617                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9618                        )
 9619                        .when(
 9620                            !(tiling.bottom
 9621                                || tiling.right
 9622                                || border_radius_tiling.bottom
 9623                                || border_radius_tiling.right),
 9624                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9625                        )
 9626                        .when(
 9627                            !(tiling.bottom
 9628                                || tiling.left
 9629                                || border_radius_tiling.bottom
 9630                                || border_radius_tiling.left),
 9631                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9632                        )
 9633                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9634                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9635                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9636                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9637                        .when(!tiling.is_tiled(), |div| {
 9638                            div.shadow(vec![gpui::BoxShadow {
 9639                                color: Hsla {
 9640                                    h: 0.,
 9641                                    s: 0.,
 9642                                    l: 0.,
 9643                                    a: 0.4,
 9644                                },
 9645                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9646                                spread_radius: px(0.),
 9647                                offset: point(px(0.0), px(0.0)),
 9648                            }])
 9649                        }),
 9650                })
 9651                .on_mouse_move(|_e, _, cx| {
 9652                    cx.stop_propagation();
 9653                })
 9654                .size_full()
 9655                .child(element),
 9656        )
 9657        .map(|div| match decorations {
 9658            Decorations::Server => div,
 9659            Decorations::Client { tiling, .. } => div.child(
 9660                canvas(
 9661                    |_bounds, window, _| {
 9662                        window.insert_hitbox(
 9663                            Bounds::new(
 9664                                point(px(0.0), px(0.0)),
 9665                                window.window_bounds().get_bounds().size,
 9666                            ),
 9667                            HitboxBehavior::Normal,
 9668                        )
 9669                    },
 9670                    move |_bounds, hitbox, window, cx| {
 9671                        let mouse = window.mouse_position();
 9672                        let size = window.window_bounds().get_bounds().size;
 9673                        let Some(edge) =
 9674                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 9675                        else {
 9676                            return;
 9677                        };
 9678                        cx.set_global(GlobalResizeEdge(edge));
 9679                        window.set_cursor_style(
 9680                            match edge {
 9681                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 9682                                ResizeEdge::Left | ResizeEdge::Right => {
 9683                                    CursorStyle::ResizeLeftRight
 9684                                }
 9685                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 9686                                    CursorStyle::ResizeUpLeftDownRight
 9687                                }
 9688                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 9689                                    CursorStyle::ResizeUpRightDownLeft
 9690                                }
 9691                            },
 9692                            &hitbox,
 9693                        );
 9694                    },
 9695                )
 9696                .size_full()
 9697                .absolute(),
 9698            ),
 9699        })
 9700}
 9701
 9702fn resize_edge(
 9703    pos: Point<Pixels>,
 9704    shadow_size: Pixels,
 9705    window_size: Size<Pixels>,
 9706    tiling: Tiling,
 9707) -> Option<ResizeEdge> {
 9708    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9709    if bounds.contains(&pos) {
 9710        return None;
 9711    }
 9712
 9713    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9714    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 9715    if !tiling.top && top_left_bounds.contains(&pos) {
 9716        return Some(ResizeEdge::TopLeft);
 9717    }
 9718
 9719    let top_right_bounds = Bounds::new(
 9720        Point::new(window_size.width - corner_size.width, px(0.)),
 9721        corner_size,
 9722    );
 9723    if !tiling.top && top_right_bounds.contains(&pos) {
 9724        return Some(ResizeEdge::TopRight);
 9725    }
 9726
 9727    let bottom_left_bounds = Bounds::new(
 9728        Point::new(px(0.), window_size.height - corner_size.height),
 9729        corner_size,
 9730    );
 9731    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 9732        return Some(ResizeEdge::BottomLeft);
 9733    }
 9734
 9735    let bottom_right_bounds = Bounds::new(
 9736        Point::new(
 9737            window_size.width - corner_size.width,
 9738            window_size.height - corner_size.height,
 9739        ),
 9740        corner_size,
 9741    );
 9742    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 9743        return Some(ResizeEdge::BottomRight);
 9744    }
 9745
 9746    if !tiling.top && pos.y < shadow_size {
 9747        Some(ResizeEdge::Top)
 9748    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 9749        Some(ResizeEdge::Bottom)
 9750    } else if !tiling.left && pos.x < shadow_size {
 9751        Some(ResizeEdge::Left)
 9752    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 9753        Some(ResizeEdge::Right)
 9754    } else {
 9755        None
 9756    }
 9757}
 9758
 9759fn join_pane_into_active(
 9760    active_pane: &Entity<Pane>,
 9761    pane: &Entity<Pane>,
 9762    window: &mut Window,
 9763    cx: &mut App,
 9764) {
 9765    if pane == active_pane {
 9766    } else if pane.read(cx).items_len() == 0 {
 9767        pane.update(cx, |_, cx| {
 9768            cx.emit(pane::Event::Remove {
 9769                focus_on_pane: None,
 9770            });
 9771        })
 9772    } else {
 9773        move_all_items(pane, active_pane, window, cx);
 9774    }
 9775}
 9776
 9777fn move_all_items(
 9778    from_pane: &Entity<Pane>,
 9779    to_pane: &Entity<Pane>,
 9780    window: &mut Window,
 9781    cx: &mut App,
 9782) {
 9783    let destination_is_different = from_pane != to_pane;
 9784    let mut moved_items = 0;
 9785    for (item_ix, item_handle) in from_pane
 9786        .read(cx)
 9787        .items()
 9788        .enumerate()
 9789        .map(|(ix, item)| (ix, item.clone()))
 9790        .collect::<Vec<_>>()
 9791    {
 9792        let ix = item_ix - moved_items;
 9793        if destination_is_different {
 9794            // Close item from previous pane
 9795            from_pane.update(cx, |source, cx| {
 9796                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 9797            });
 9798            moved_items += 1;
 9799        }
 9800
 9801        // This automatically removes duplicate items in the pane
 9802        to_pane.update(cx, |destination, cx| {
 9803            destination.add_item(item_handle, true, true, None, window, cx);
 9804            window.focus(&destination.focus_handle(cx), cx)
 9805        });
 9806    }
 9807}
 9808
 9809pub fn move_item(
 9810    source: &Entity<Pane>,
 9811    destination: &Entity<Pane>,
 9812    item_id_to_move: EntityId,
 9813    destination_index: usize,
 9814    activate: bool,
 9815    window: &mut Window,
 9816    cx: &mut App,
 9817) {
 9818    let Some((item_ix, item_handle)) = source
 9819        .read(cx)
 9820        .items()
 9821        .enumerate()
 9822        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 9823        .map(|(ix, item)| (ix, item.clone()))
 9824    else {
 9825        // Tab was closed during drag
 9826        return;
 9827    };
 9828
 9829    if source != destination {
 9830        // Close item from previous pane
 9831        source.update(cx, |source, cx| {
 9832            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9833        });
 9834    }
 9835
 9836    // This automatically removes duplicate items in the pane
 9837    destination.update(cx, |destination, cx| {
 9838        destination.add_item_inner(
 9839            item_handle,
 9840            activate,
 9841            activate,
 9842            activate,
 9843            Some(destination_index),
 9844            window,
 9845            cx,
 9846        );
 9847        if activate {
 9848            window.focus(&destination.focus_handle(cx), cx)
 9849        }
 9850    });
 9851}
 9852
 9853pub fn move_active_item(
 9854    source: &Entity<Pane>,
 9855    destination: &Entity<Pane>,
 9856    focus_destination: bool,
 9857    close_if_empty: bool,
 9858    window: &mut Window,
 9859    cx: &mut App,
 9860) {
 9861    if source == destination {
 9862        return;
 9863    }
 9864    let Some(active_item) = source.read(cx).active_item() else {
 9865        return;
 9866    };
 9867    source.update(cx, |source_pane, cx| {
 9868        let item_id = active_item.item_id();
 9869        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9870        destination.update(cx, |target_pane, cx| {
 9871            target_pane.add_item(
 9872                active_item,
 9873                focus_destination,
 9874                focus_destination,
 9875                Some(target_pane.items_len()),
 9876                window,
 9877                cx,
 9878            );
 9879        });
 9880    });
 9881}
 9882
 9883pub fn clone_active_item(
 9884    workspace_id: Option<WorkspaceId>,
 9885    source: &Entity<Pane>,
 9886    destination: &Entity<Pane>,
 9887    focus_destination: bool,
 9888    window: &mut Window,
 9889    cx: &mut App,
 9890) {
 9891    if source == destination {
 9892        return;
 9893    }
 9894    let Some(active_item) = source.read(cx).active_item() else {
 9895        return;
 9896    };
 9897    if !active_item.can_split(cx) {
 9898        return;
 9899    }
 9900    let destination = destination.downgrade();
 9901    let task = active_item.clone_on_split(workspace_id, window, cx);
 9902    window
 9903        .spawn(cx, async move |cx| {
 9904            let Some(clone) = task.await else {
 9905                return;
 9906            };
 9907            destination
 9908                .update_in(cx, |target_pane, window, cx| {
 9909                    target_pane.add_item(
 9910                        clone,
 9911                        focus_destination,
 9912                        focus_destination,
 9913                        Some(target_pane.items_len()),
 9914                        window,
 9915                        cx,
 9916                    );
 9917                })
 9918                .log_err();
 9919        })
 9920        .detach();
 9921}
 9922
 9923#[derive(Debug)]
 9924pub struct WorkspacePosition {
 9925    pub window_bounds: Option<WindowBounds>,
 9926    pub display: Option<Uuid>,
 9927    pub centered_layout: bool,
 9928}
 9929
 9930pub fn remote_workspace_position_from_db(
 9931    connection_options: RemoteConnectionOptions,
 9932    paths_to_open: &[PathBuf],
 9933    cx: &App,
 9934) -> Task<Result<WorkspacePosition>> {
 9935    let paths = paths_to_open.to_vec();
 9936
 9937    cx.background_spawn(async move {
 9938        let remote_connection_id = persistence::DB
 9939            .get_or_create_remote_connection(connection_options)
 9940            .await
 9941            .context("fetching serialized ssh project")?;
 9942        let serialized_workspace =
 9943            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9944
 9945        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9946            (Some(WindowBounds::Windowed(bounds)), None)
 9947        } else {
 9948            let restorable_bounds = serialized_workspace
 9949                .as_ref()
 9950                .and_then(|workspace| {
 9951                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9952                })
 9953                .or_else(|| persistence::read_default_window_bounds());
 9954
 9955            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9956                (Some(serialized_bounds), Some(serialized_display))
 9957            } else {
 9958                (None, None)
 9959            }
 9960        };
 9961
 9962        let centered_layout = serialized_workspace
 9963            .as_ref()
 9964            .map(|w| w.centered_layout)
 9965            .unwrap_or(false);
 9966
 9967        Ok(WorkspacePosition {
 9968            window_bounds,
 9969            display,
 9970            centered_layout,
 9971        })
 9972    })
 9973}
 9974
 9975pub fn with_active_or_new_workspace(
 9976    cx: &mut App,
 9977    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9978) {
 9979    match cx
 9980        .active_window()
 9981        .and_then(|w| w.downcast::<MultiWorkspace>())
 9982    {
 9983        Some(multi_workspace) => {
 9984            cx.defer(move |cx| {
 9985                multi_workspace
 9986                    .update(cx, |multi_workspace, window, cx| {
 9987                        let workspace = multi_workspace.workspace().clone();
 9988                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
 9989                    })
 9990                    .log_err();
 9991            });
 9992        }
 9993        None => {
 9994            let app_state = AppState::global(cx);
 9995            if let Some(app_state) = app_state.upgrade() {
 9996                open_new(
 9997                    OpenOptions::default(),
 9998                    app_state,
 9999                    cx,
10000                    move |workspace, window, cx| f(workspace, window, cx),
10001                )
10002                .detach_and_log_err(cx);
10003            }
10004        }
10005    }
10006}
10007
10008#[cfg(test)]
10009mod tests {
10010    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10011
10012    use super::*;
10013    use crate::{
10014        dock::{PanelEvent, test::TestPanel},
10015        item::{
10016            ItemBufferKind, ItemEvent,
10017            test::{TestItem, TestProjectItem},
10018        },
10019    };
10020    use fs::FakeFs;
10021    use gpui::{
10022        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10023        UpdateGlobal, VisualTestContext, px,
10024    };
10025    use project::{Project, ProjectEntryId};
10026    use serde_json::json;
10027    use settings::SettingsStore;
10028    use util::path;
10029    use util::rel_path::rel_path;
10030
10031    #[gpui::test]
10032    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10033        init_test(cx);
10034
10035        let fs = FakeFs::new(cx.executor());
10036        let project = Project::test(fs, [], cx).await;
10037        let (workspace, cx) =
10038            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10039
10040        // Adding an item with no ambiguity renders the tab without detail.
10041        let item1 = cx.new(|cx| {
10042            let mut item = TestItem::new(cx);
10043            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10044            item
10045        });
10046        workspace.update_in(cx, |workspace, window, cx| {
10047            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10048        });
10049        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10050
10051        // Adding an item that creates ambiguity increases the level of detail on
10052        // both tabs.
10053        let item2 = cx.new_window_entity(|_window, cx| {
10054            let mut item = TestItem::new(cx);
10055            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10056            item
10057        });
10058        workspace.update_in(cx, |workspace, window, cx| {
10059            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10060        });
10061        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10062        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10063
10064        // Adding an item that creates ambiguity increases the level of detail only
10065        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10066        // we stop at the highest detail available.
10067        let item3 = cx.new(|cx| {
10068            let mut item = TestItem::new(cx);
10069            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10070            item
10071        });
10072        workspace.update_in(cx, |workspace, window, cx| {
10073            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10074        });
10075        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10076        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10077        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10078    }
10079
10080    #[gpui::test]
10081    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10082        init_test(cx);
10083
10084        let fs = FakeFs::new(cx.executor());
10085        fs.insert_tree(
10086            "/root1",
10087            json!({
10088                "one.txt": "",
10089                "two.txt": "",
10090            }),
10091        )
10092        .await;
10093        fs.insert_tree(
10094            "/root2",
10095            json!({
10096                "three.txt": "",
10097            }),
10098        )
10099        .await;
10100
10101        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10102        let (workspace, cx) =
10103            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10104        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10105        let worktree_id = project.update(cx, |project, cx| {
10106            project.worktrees(cx).next().unwrap().read(cx).id()
10107        });
10108
10109        let item1 = cx.new(|cx| {
10110            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10111        });
10112        let item2 = cx.new(|cx| {
10113            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10114        });
10115
10116        // Add an item to an empty pane
10117        workspace.update_in(cx, |workspace, window, cx| {
10118            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10119        });
10120        project.update(cx, |project, cx| {
10121            assert_eq!(
10122                project.active_entry(),
10123                project
10124                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10125                    .map(|e| e.id)
10126            );
10127        });
10128        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10129
10130        // Add a second item to a non-empty pane
10131        workspace.update_in(cx, |workspace, window, cx| {
10132            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10133        });
10134        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10135        project.update(cx, |project, cx| {
10136            assert_eq!(
10137                project.active_entry(),
10138                project
10139                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10140                    .map(|e| e.id)
10141            );
10142        });
10143
10144        // Close the active item
10145        pane.update_in(cx, |pane, window, cx| {
10146            pane.close_active_item(&Default::default(), window, cx)
10147        })
10148        .await
10149        .unwrap();
10150        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10151        project.update(cx, |project, cx| {
10152            assert_eq!(
10153                project.active_entry(),
10154                project
10155                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10156                    .map(|e| e.id)
10157            );
10158        });
10159
10160        // Add a project folder
10161        project
10162            .update(cx, |project, cx| {
10163                project.find_or_create_worktree("root2", true, cx)
10164            })
10165            .await
10166            .unwrap();
10167        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10168
10169        // Remove a project folder
10170        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10171        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10172    }
10173
10174    #[gpui::test]
10175    async fn test_close_window(cx: &mut TestAppContext) {
10176        init_test(cx);
10177
10178        let fs = FakeFs::new(cx.executor());
10179        fs.insert_tree("/root", json!({ "one": "" })).await;
10180
10181        let project = Project::test(fs, ["root".as_ref()], cx).await;
10182        let (workspace, cx) =
10183            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10184
10185        // When there are no dirty items, there's nothing to do.
10186        let item1 = cx.new(TestItem::new);
10187        workspace.update_in(cx, |w, window, cx| {
10188            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10189        });
10190        let task = workspace.update_in(cx, |w, window, cx| {
10191            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10192        });
10193        assert!(task.await.unwrap());
10194
10195        // When there are dirty untitled items, prompt to save each one. If the user
10196        // cancels any prompt, then abort.
10197        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10198        let item3 = cx.new(|cx| {
10199            TestItem::new(cx)
10200                .with_dirty(true)
10201                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10202        });
10203        workspace.update_in(cx, |w, window, cx| {
10204            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10205            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10206        });
10207        let task = workspace.update_in(cx, |w, window, cx| {
10208            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10209        });
10210        cx.executor().run_until_parked();
10211        cx.simulate_prompt_answer("Cancel"); // cancel save all
10212        cx.executor().run_until_parked();
10213        assert!(!cx.has_pending_prompt());
10214        assert!(!task.await.unwrap());
10215    }
10216
10217    #[gpui::test]
10218    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10219        init_test(cx);
10220
10221        let fs = FakeFs::new(cx.executor());
10222        fs.insert_tree("/root", json!({ "one": "" })).await;
10223
10224        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10225        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10226        let multi_workspace_handle =
10227            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10228        cx.run_until_parked();
10229
10230        let workspace_a = multi_workspace_handle
10231            .read_with(cx, |mw, _| mw.workspace().clone())
10232            .unwrap();
10233
10234        let workspace_b = multi_workspace_handle
10235            .update(cx, |mw, window, cx| {
10236                mw.test_add_workspace(project_b, window, cx)
10237            })
10238            .unwrap();
10239
10240        // Activate workspace A
10241        multi_workspace_handle
10242            .update(cx, |mw, window, cx| {
10243                mw.activate_index(0, window, cx);
10244            })
10245            .unwrap();
10246
10247        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10248
10249        // Workspace A has a clean item
10250        let item_a = cx.new(TestItem::new);
10251        workspace_a.update_in(cx, |w, window, cx| {
10252            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10253        });
10254
10255        // Workspace B has a dirty item
10256        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10257        workspace_b.update_in(cx, |w, window, cx| {
10258            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10259        });
10260
10261        // Verify workspace A is active
10262        multi_workspace_handle
10263            .read_with(cx, |mw, _| {
10264                assert_eq!(mw.active_workspace_index(), 0);
10265            })
10266            .unwrap();
10267
10268        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10269        multi_workspace_handle
10270            .update(cx, |mw, window, cx| {
10271                mw.close_window(&CloseWindow, window, cx);
10272            })
10273            .unwrap();
10274        cx.run_until_parked();
10275
10276        // Workspace B should now be active since it has dirty items that need attention
10277        multi_workspace_handle
10278            .read_with(cx, |mw, _| {
10279                assert_eq!(
10280                    mw.active_workspace_index(),
10281                    1,
10282                    "workspace B should be activated when it prompts"
10283                );
10284            })
10285            .unwrap();
10286
10287        // User cancels the save prompt from workspace B
10288        cx.simulate_prompt_answer("Cancel");
10289        cx.run_until_parked();
10290
10291        // Window should still exist because workspace B's close was cancelled
10292        assert!(
10293            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10294            "window should still exist after cancelling one workspace's close"
10295        );
10296    }
10297
10298    #[gpui::test]
10299    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10300        init_test(cx);
10301
10302        // Register TestItem as a serializable item
10303        cx.update(|cx| {
10304            register_serializable_item::<TestItem>(cx);
10305        });
10306
10307        let fs = FakeFs::new(cx.executor());
10308        fs.insert_tree("/root", json!({ "one": "" })).await;
10309
10310        let project = Project::test(fs, ["root".as_ref()], cx).await;
10311        let (workspace, cx) =
10312            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10313
10314        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10315        let item1 = cx.new(|cx| {
10316            TestItem::new(cx)
10317                .with_dirty(true)
10318                .with_serialize(|| Some(Task::ready(Ok(()))))
10319        });
10320        let item2 = cx.new(|cx| {
10321            TestItem::new(cx)
10322                .with_dirty(true)
10323                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10324                .with_serialize(|| Some(Task::ready(Ok(()))))
10325        });
10326        workspace.update_in(cx, |w, window, cx| {
10327            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10328            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10329        });
10330        let task = workspace.update_in(cx, |w, window, cx| {
10331            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10332        });
10333        assert!(task.await.unwrap());
10334    }
10335
10336    #[gpui::test]
10337    async fn test_close_pane_items(cx: &mut TestAppContext) {
10338        init_test(cx);
10339
10340        let fs = FakeFs::new(cx.executor());
10341
10342        let project = Project::test(fs, None, cx).await;
10343        let (workspace, cx) =
10344            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10345
10346        let item1 = cx.new(|cx| {
10347            TestItem::new(cx)
10348                .with_dirty(true)
10349                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10350        });
10351        let item2 = cx.new(|cx| {
10352            TestItem::new(cx)
10353                .with_dirty(true)
10354                .with_conflict(true)
10355                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10356        });
10357        let item3 = cx.new(|cx| {
10358            TestItem::new(cx)
10359                .with_dirty(true)
10360                .with_conflict(true)
10361                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10362        });
10363        let item4 = cx.new(|cx| {
10364            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10365                let project_item = TestProjectItem::new_untitled(cx);
10366                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10367                project_item
10368            }])
10369        });
10370        let pane = workspace.update_in(cx, |workspace, window, cx| {
10371            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10372            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10373            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10374            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10375            workspace.active_pane().clone()
10376        });
10377
10378        let close_items = pane.update_in(cx, |pane, window, cx| {
10379            pane.activate_item(1, true, true, window, cx);
10380            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10381            let item1_id = item1.item_id();
10382            let item3_id = item3.item_id();
10383            let item4_id = item4.item_id();
10384            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10385                [item1_id, item3_id, item4_id].contains(&id)
10386            })
10387        });
10388        cx.executor().run_until_parked();
10389
10390        assert!(cx.has_pending_prompt());
10391        cx.simulate_prompt_answer("Save all");
10392
10393        cx.executor().run_until_parked();
10394
10395        // Item 1 is saved. There's a prompt to save item 3.
10396        pane.update(cx, |pane, cx| {
10397            assert_eq!(item1.read(cx).save_count, 1);
10398            assert_eq!(item1.read(cx).save_as_count, 0);
10399            assert_eq!(item1.read(cx).reload_count, 0);
10400            assert_eq!(pane.items_len(), 3);
10401            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10402        });
10403        assert!(cx.has_pending_prompt());
10404
10405        // Cancel saving item 3.
10406        cx.simulate_prompt_answer("Discard");
10407        cx.executor().run_until_parked();
10408
10409        // Item 3 is reloaded. There's a prompt to save item 4.
10410        pane.update(cx, |pane, cx| {
10411            assert_eq!(item3.read(cx).save_count, 0);
10412            assert_eq!(item3.read(cx).save_as_count, 0);
10413            assert_eq!(item3.read(cx).reload_count, 1);
10414            assert_eq!(pane.items_len(), 2);
10415            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10416        });
10417
10418        // There's a prompt for a path for item 4.
10419        cx.simulate_new_path_selection(|_| Some(Default::default()));
10420        close_items.await.unwrap();
10421
10422        // The requested items are closed.
10423        pane.update(cx, |pane, cx| {
10424            assert_eq!(item4.read(cx).save_count, 0);
10425            assert_eq!(item4.read(cx).save_as_count, 1);
10426            assert_eq!(item4.read(cx).reload_count, 0);
10427            assert_eq!(pane.items_len(), 1);
10428            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10429        });
10430    }
10431
10432    #[gpui::test]
10433    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10434        init_test(cx);
10435
10436        let fs = FakeFs::new(cx.executor());
10437        let project = Project::test(fs, [], cx).await;
10438        let (workspace, cx) =
10439            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10440
10441        // Create several workspace items with single project entries, and two
10442        // workspace items with multiple project entries.
10443        let single_entry_items = (0..=4)
10444            .map(|project_entry_id| {
10445                cx.new(|cx| {
10446                    TestItem::new(cx)
10447                        .with_dirty(true)
10448                        .with_project_items(&[dirty_project_item(
10449                            project_entry_id,
10450                            &format!("{project_entry_id}.txt"),
10451                            cx,
10452                        )])
10453                })
10454            })
10455            .collect::<Vec<_>>();
10456        let item_2_3 = cx.new(|cx| {
10457            TestItem::new(cx)
10458                .with_dirty(true)
10459                .with_buffer_kind(ItemBufferKind::Multibuffer)
10460                .with_project_items(&[
10461                    single_entry_items[2].read(cx).project_items[0].clone(),
10462                    single_entry_items[3].read(cx).project_items[0].clone(),
10463                ])
10464        });
10465        let item_3_4 = cx.new(|cx| {
10466            TestItem::new(cx)
10467                .with_dirty(true)
10468                .with_buffer_kind(ItemBufferKind::Multibuffer)
10469                .with_project_items(&[
10470                    single_entry_items[3].read(cx).project_items[0].clone(),
10471                    single_entry_items[4].read(cx).project_items[0].clone(),
10472                ])
10473        });
10474
10475        // Create two panes that contain the following project entries:
10476        //   left pane:
10477        //     multi-entry items:   (2, 3)
10478        //     single-entry items:  0, 2, 3, 4
10479        //   right pane:
10480        //     single-entry items:  4, 1
10481        //     multi-entry items:   (3, 4)
10482        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10483            let left_pane = workspace.active_pane().clone();
10484            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10485            workspace.add_item_to_active_pane(
10486                single_entry_items[0].boxed_clone(),
10487                None,
10488                true,
10489                window,
10490                cx,
10491            );
10492            workspace.add_item_to_active_pane(
10493                single_entry_items[2].boxed_clone(),
10494                None,
10495                true,
10496                window,
10497                cx,
10498            );
10499            workspace.add_item_to_active_pane(
10500                single_entry_items[3].boxed_clone(),
10501                None,
10502                true,
10503                window,
10504                cx,
10505            );
10506            workspace.add_item_to_active_pane(
10507                single_entry_items[4].boxed_clone(),
10508                None,
10509                true,
10510                window,
10511                cx,
10512            );
10513
10514            let right_pane =
10515                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10516
10517            let boxed_clone = single_entry_items[1].boxed_clone();
10518            let right_pane = window.spawn(cx, async move |cx| {
10519                right_pane.await.inspect(|right_pane| {
10520                    right_pane
10521                        .update_in(cx, |pane, window, cx| {
10522                            pane.add_item(boxed_clone, true, true, None, window, cx);
10523                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10524                        })
10525                        .unwrap();
10526                })
10527            });
10528
10529            (left_pane, right_pane)
10530        });
10531        let right_pane = right_pane.await.unwrap();
10532        cx.focus(&right_pane);
10533
10534        let close = right_pane.update_in(cx, |pane, window, cx| {
10535            pane.close_all_items(&CloseAllItems::default(), window, cx)
10536                .unwrap()
10537        });
10538        cx.executor().run_until_parked();
10539
10540        let msg = cx.pending_prompt().unwrap().0;
10541        assert!(msg.contains("1.txt"));
10542        assert!(!msg.contains("2.txt"));
10543        assert!(!msg.contains("3.txt"));
10544        assert!(!msg.contains("4.txt"));
10545
10546        // With best-effort close, cancelling item 1 keeps it open but items 4
10547        // and (3,4) still close since their entries exist in left pane.
10548        cx.simulate_prompt_answer("Cancel");
10549        close.await;
10550
10551        right_pane.read_with(cx, |pane, _| {
10552            assert_eq!(pane.items_len(), 1);
10553        });
10554
10555        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10556        left_pane
10557            .update_in(cx, |left_pane, window, cx| {
10558                left_pane.close_item_by_id(
10559                    single_entry_items[3].entity_id(),
10560                    SaveIntent::Skip,
10561                    window,
10562                    cx,
10563                )
10564            })
10565            .await
10566            .unwrap();
10567
10568        let close = left_pane.update_in(cx, |pane, window, cx| {
10569            pane.close_all_items(&CloseAllItems::default(), window, cx)
10570                .unwrap()
10571        });
10572        cx.executor().run_until_parked();
10573
10574        let details = cx.pending_prompt().unwrap().1;
10575        assert!(details.contains("0.txt"));
10576        assert!(details.contains("3.txt"));
10577        assert!(details.contains("4.txt"));
10578        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10579        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10580        // assert!(!details.contains("2.txt"));
10581
10582        cx.simulate_prompt_answer("Save all");
10583        cx.executor().run_until_parked();
10584        close.await;
10585
10586        left_pane.read_with(cx, |pane, _| {
10587            assert_eq!(pane.items_len(), 0);
10588        });
10589    }
10590
10591    #[gpui::test]
10592    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10593        init_test(cx);
10594
10595        let fs = FakeFs::new(cx.executor());
10596        let project = Project::test(fs, [], cx).await;
10597        let (workspace, cx) =
10598            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10599        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10600
10601        let item = cx.new(|cx| {
10602            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10603        });
10604        let item_id = item.entity_id();
10605        workspace.update_in(cx, |workspace, window, cx| {
10606            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10607        });
10608
10609        // Autosave on window change.
10610        item.update(cx, |item, cx| {
10611            SettingsStore::update_global(cx, |settings, cx| {
10612                settings.update_user_settings(cx, |settings| {
10613                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10614                })
10615            });
10616            item.is_dirty = true;
10617        });
10618
10619        // Deactivating the window saves the file.
10620        cx.deactivate_window();
10621        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10622
10623        // Re-activating the window doesn't save the file.
10624        cx.update(|window, _| window.activate_window());
10625        cx.executor().run_until_parked();
10626        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10627
10628        // Autosave on focus change.
10629        item.update_in(cx, |item, window, cx| {
10630            cx.focus_self(window);
10631            SettingsStore::update_global(cx, |settings, cx| {
10632                settings.update_user_settings(cx, |settings| {
10633                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10634                })
10635            });
10636            item.is_dirty = true;
10637        });
10638        // Blurring the item saves the file.
10639        item.update_in(cx, |_, window, _| window.blur());
10640        cx.executor().run_until_parked();
10641        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
10642
10643        // Deactivating the window still saves the file.
10644        item.update_in(cx, |item, window, cx| {
10645            cx.focus_self(window);
10646            item.is_dirty = true;
10647        });
10648        cx.deactivate_window();
10649        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
10650
10651        // Autosave after delay.
10652        item.update(cx, |item, cx| {
10653            SettingsStore::update_global(cx, |settings, cx| {
10654                settings.update_user_settings(cx, |settings| {
10655                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
10656                        milliseconds: 500.into(),
10657                    });
10658                })
10659            });
10660            item.is_dirty = true;
10661            cx.emit(ItemEvent::Edit);
10662        });
10663
10664        // Delay hasn't fully expired, so the file is still dirty and unsaved.
10665        cx.executor().advance_clock(Duration::from_millis(250));
10666        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
10667
10668        // After delay expires, the file is saved.
10669        cx.executor().advance_clock(Duration::from_millis(250));
10670        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10671
10672        // Autosave after delay, should save earlier than delay if tab is closed
10673        item.update(cx, |item, cx| {
10674            item.is_dirty = true;
10675            cx.emit(ItemEvent::Edit);
10676        });
10677        cx.executor().advance_clock(Duration::from_millis(250));
10678        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10679
10680        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
10681        pane.update_in(cx, |pane, window, cx| {
10682            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10683        })
10684        .await
10685        .unwrap();
10686        assert!(!cx.has_pending_prompt());
10687        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10688
10689        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10690        workspace.update_in(cx, |workspace, window, cx| {
10691            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10692        });
10693        item.update_in(cx, |item, _window, cx| {
10694            item.is_dirty = true;
10695            for project_item in &mut item.project_items {
10696                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10697            }
10698        });
10699        cx.run_until_parked();
10700        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10701
10702        // Autosave on focus change, ensuring closing the tab counts as such.
10703        item.update(cx, |item, cx| {
10704            SettingsStore::update_global(cx, |settings, cx| {
10705                settings.update_user_settings(cx, |settings| {
10706                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10707                })
10708            });
10709            item.is_dirty = true;
10710            for project_item in &mut item.project_items {
10711                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10712            }
10713        });
10714
10715        pane.update_in(cx, |pane, window, cx| {
10716            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10717        })
10718        .await
10719        .unwrap();
10720        assert!(!cx.has_pending_prompt());
10721        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10722
10723        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10724        workspace.update_in(cx, |workspace, window, cx| {
10725            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10726        });
10727        item.update_in(cx, |item, window, cx| {
10728            item.project_items[0].update(cx, |item, _| {
10729                item.entry_id = None;
10730            });
10731            item.is_dirty = true;
10732            window.blur();
10733        });
10734        cx.run_until_parked();
10735        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10736
10737        // Ensure autosave is prevented for deleted files also when closing the buffer.
10738        let _close_items = pane.update_in(cx, |pane, window, cx| {
10739            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10740        });
10741        cx.run_until_parked();
10742        assert!(cx.has_pending_prompt());
10743        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10744    }
10745
10746    #[gpui::test]
10747    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
10748        init_test(cx);
10749
10750        let fs = FakeFs::new(cx.executor());
10751        let project = Project::test(fs, [], cx).await;
10752        let (workspace, cx) =
10753            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10754
10755        // Create a multibuffer-like item with two child focus handles,
10756        // simulating individual buffer editors within a multibuffer.
10757        let item = cx.new(|cx| {
10758            TestItem::new(cx)
10759                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10760                .with_child_focus_handles(2, cx)
10761        });
10762        workspace.update_in(cx, |workspace, window, cx| {
10763            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10764        });
10765
10766        // Set autosave to OnFocusChange and focus the first child handle,
10767        // simulating the user's cursor being inside one of the multibuffer's excerpts.
10768        item.update_in(cx, |item, window, cx| {
10769            SettingsStore::update_global(cx, |settings, cx| {
10770                settings.update_user_settings(cx, |settings| {
10771                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10772                })
10773            });
10774            item.is_dirty = true;
10775            window.focus(&item.child_focus_handles[0], cx);
10776        });
10777        cx.executor().run_until_parked();
10778        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
10779
10780        // Moving focus from one child to another within the same item should
10781        // NOT trigger autosave — focus is still within the item's focus hierarchy.
10782        item.update_in(cx, |item, window, cx| {
10783            window.focus(&item.child_focus_handles[1], cx);
10784        });
10785        cx.executor().run_until_parked();
10786        item.read_with(cx, |item, _| {
10787            assert_eq!(
10788                item.save_count, 0,
10789                "Switching focus between children within the same item should not autosave"
10790            );
10791        });
10792
10793        // Blurring the item saves the file. This is the core regression scenario:
10794        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
10795        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
10796        // the leaf is always a child focus handle, so `on_blur` never detected
10797        // focus leaving the item.
10798        item.update_in(cx, |_, window, _| window.blur());
10799        cx.executor().run_until_parked();
10800        item.read_with(cx, |item, _| {
10801            assert_eq!(
10802                item.save_count, 1,
10803                "Blurring should trigger autosave when focus was on a child of the item"
10804            );
10805        });
10806
10807        // Deactivating the window should also trigger autosave when a child of
10808        // the multibuffer item currently owns focus.
10809        item.update_in(cx, |item, window, cx| {
10810            item.is_dirty = true;
10811            window.focus(&item.child_focus_handles[0], cx);
10812        });
10813        cx.executor().run_until_parked();
10814        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10815
10816        cx.deactivate_window();
10817        item.read_with(cx, |item, _| {
10818            assert_eq!(
10819                item.save_count, 2,
10820                "Deactivating window should trigger autosave when focus was on a child"
10821            );
10822        });
10823    }
10824
10825    #[gpui::test]
10826    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
10827        init_test(cx);
10828
10829        let fs = FakeFs::new(cx.executor());
10830
10831        let project = Project::test(fs, [], cx).await;
10832        let (workspace, cx) =
10833            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10834
10835        let item = cx.new(|cx| {
10836            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10837        });
10838        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10839        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
10840        let toolbar_notify_count = Rc::new(RefCell::new(0));
10841
10842        workspace.update_in(cx, |workspace, window, cx| {
10843            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10844            let toolbar_notification_count = toolbar_notify_count.clone();
10845            cx.observe_in(&toolbar, window, move |_, _, _, _| {
10846                *toolbar_notification_count.borrow_mut() += 1
10847            })
10848            .detach();
10849        });
10850
10851        pane.read_with(cx, |pane, _| {
10852            assert!(!pane.can_navigate_backward());
10853            assert!(!pane.can_navigate_forward());
10854        });
10855
10856        item.update_in(cx, |item, _, cx| {
10857            item.set_state("one".to_string(), cx);
10858        });
10859
10860        // Toolbar must be notified to re-render the navigation buttons
10861        assert_eq!(*toolbar_notify_count.borrow(), 1);
10862
10863        pane.read_with(cx, |pane, _| {
10864            assert!(pane.can_navigate_backward());
10865            assert!(!pane.can_navigate_forward());
10866        });
10867
10868        workspace
10869            .update_in(cx, |workspace, window, cx| {
10870                workspace.go_back(pane.downgrade(), window, cx)
10871            })
10872            .await
10873            .unwrap();
10874
10875        assert_eq!(*toolbar_notify_count.borrow(), 2);
10876        pane.read_with(cx, |pane, _| {
10877            assert!(!pane.can_navigate_backward());
10878            assert!(pane.can_navigate_forward());
10879        });
10880    }
10881
10882    #[gpui::test]
10883    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
10884        init_test(cx);
10885        let fs = FakeFs::new(cx.executor());
10886        let project = Project::test(fs, [], cx).await;
10887        let (multi_workspace, cx) =
10888            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
10889        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
10890
10891        workspace.update_in(cx, |workspace, window, cx| {
10892            let first_item = cx.new(|cx| {
10893                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10894            });
10895            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
10896            workspace.split_pane(
10897                workspace.active_pane().clone(),
10898                SplitDirection::Right,
10899                window,
10900                cx,
10901            );
10902            workspace.split_pane(
10903                workspace.active_pane().clone(),
10904                SplitDirection::Right,
10905                window,
10906                cx,
10907            );
10908        });
10909
10910        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
10911            let panes = workspace.center.panes();
10912            assert!(panes.len() >= 2);
10913            (
10914                panes.first().expect("at least one pane").entity_id(),
10915                panes.last().expect("at least one pane").entity_id(),
10916            )
10917        });
10918
10919        workspace.update_in(cx, |workspace, window, cx| {
10920            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
10921        });
10922        workspace.update(cx, |workspace, _| {
10923            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
10924            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
10925        });
10926
10927        cx.dispatch_action(ActivateLastPane);
10928
10929        workspace.update(cx, |workspace, _| {
10930            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
10931        });
10932    }
10933
10934    #[gpui::test]
10935    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
10936        init_test(cx);
10937        let fs = FakeFs::new(cx.executor());
10938
10939        let project = Project::test(fs, [], cx).await;
10940        let (workspace, cx) =
10941            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10942
10943        let panel = workspace.update_in(cx, |workspace, window, cx| {
10944            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10945            workspace.add_panel(panel.clone(), window, cx);
10946
10947            workspace
10948                .right_dock()
10949                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10950
10951            panel
10952        });
10953
10954        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10955        pane.update_in(cx, |pane, window, cx| {
10956            let item = cx.new(TestItem::new);
10957            pane.add_item(Box::new(item), true, true, None, window, cx);
10958        });
10959
10960        // Transfer focus from center to panel
10961        workspace.update_in(cx, |workspace, window, cx| {
10962            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10963        });
10964
10965        workspace.update_in(cx, |workspace, window, cx| {
10966            assert!(workspace.right_dock().read(cx).is_open());
10967            assert!(!panel.is_zoomed(window, cx));
10968            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10969        });
10970
10971        // Transfer focus from panel to center
10972        workspace.update_in(cx, |workspace, window, cx| {
10973            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10974        });
10975
10976        workspace.update_in(cx, |workspace, window, cx| {
10977            assert!(workspace.right_dock().read(cx).is_open());
10978            assert!(!panel.is_zoomed(window, cx));
10979            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10980        });
10981
10982        // Close the dock
10983        workspace.update_in(cx, |workspace, window, cx| {
10984            workspace.toggle_dock(DockPosition::Right, window, cx);
10985        });
10986
10987        workspace.update_in(cx, |workspace, window, cx| {
10988            assert!(!workspace.right_dock().read(cx).is_open());
10989            assert!(!panel.is_zoomed(window, cx));
10990            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10991        });
10992
10993        // Open the dock
10994        workspace.update_in(cx, |workspace, window, cx| {
10995            workspace.toggle_dock(DockPosition::Right, window, cx);
10996        });
10997
10998        workspace.update_in(cx, |workspace, window, cx| {
10999            assert!(workspace.right_dock().read(cx).is_open());
11000            assert!(!panel.is_zoomed(window, cx));
11001            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11002        });
11003
11004        // Focus and zoom panel
11005        panel.update_in(cx, |panel, window, cx| {
11006            cx.focus_self(window);
11007            panel.set_zoomed(true, window, cx)
11008        });
11009
11010        workspace.update_in(cx, |workspace, window, cx| {
11011            assert!(workspace.right_dock().read(cx).is_open());
11012            assert!(panel.is_zoomed(window, cx));
11013            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11014        });
11015
11016        // Transfer focus to the center closes the dock
11017        workspace.update_in(cx, |workspace, window, cx| {
11018            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11019        });
11020
11021        workspace.update_in(cx, |workspace, window, cx| {
11022            assert!(!workspace.right_dock().read(cx).is_open());
11023            assert!(panel.is_zoomed(window, cx));
11024            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11025        });
11026
11027        // Transferring focus back to the panel keeps it zoomed
11028        workspace.update_in(cx, |workspace, window, cx| {
11029            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11030        });
11031
11032        workspace.update_in(cx, |workspace, window, cx| {
11033            assert!(workspace.right_dock().read(cx).is_open());
11034            assert!(panel.is_zoomed(window, cx));
11035            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11036        });
11037
11038        // Close the dock while it is zoomed
11039        workspace.update_in(cx, |workspace, window, cx| {
11040            workspace.toggle_dock(DockPosition::Right, window, cx)
11041        });
11042
11043        workspace.update_in(cx, |workspace, window, cx| {
11044            assert!(!workspace.right_dock().read(cx).is_open());
11045            assert!(panel.is_zoomed(window, cx));
11046            assert!(workspace.zoomed.is_none());
11047            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11048        });
11049
11050        // Opening the dock, when it's zoomed, retains focus
11051        workspace.update_in(cx, |workspace, window, cx| {
11052            workspace.toggle_dock(DockPosition::Right, window, cx)
11053        });
11054
11055        workspace.update_in(cx, |workspace, window, cx| {
11056            assert!(workspace.right_dock().read(cx).is_open());
11057            assert!(panel.is_zoomed(window, cx));
11058            assert!(workspace.zoomed.is_some());
11059            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11060        });
11061
11062        // Unzoom and close the panel, zoom the active pane.
11063        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11064        workspace.update_in(cx, |workspace, window, cx| {
11065            workspace.toggle_dock(DockPosition::Right, window, cx)
11066        });
11067        pane.update_in(cx, |pane, window, cx| {
11068            pane.toggle_zoom(&Default::default(), window, cx)
11069        });
11070
11071        // Opening a dock unzooms the pane.
11072        workspace.update_in(cx, |workspace, window, cx| {
11073            workspace.toggle_dock(DockPosition::Right, window, cx)
11074        });
11075        workspace.update_in(cx, |workspace, window, cx| {
11076            let pane = pane.read(cx);
11077            assert!(!pane.is_zoomed());
11078            assert!(!pane.focus_handle(cx).is_focused(window));
11079            assert!(workspace.right_dock().read(cx).is_open());
11080            assert!(workspace.zoomed.is_none());
11081        });
11082    }
11083
11084    #[gpui::test]
11085    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11086        init_test(cx);
11087        let fs = FakeFs::new(cx.executor());
11088
11089        let project = Project::test(fs, [], cx).await;
11090        let (workspace, cx) =
11091            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11092
11093        let panel = workspace.update_in(cx, |workspace, window, cx| {
11094            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11095            workspace.add_panel(panel.clone(), window, cx);
11096            panel
11097        });
11098
11099        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11100        pane.update_in(cx, |pane, window, cx| {
11101            let item = cx.new(TestItem::new);
11102            pane.add_item(Box::new(item), true, true, None, window, cx);
11103        });
11104
11105        // Enable close_panel_on_toggle
11106        cx.update_global(|store: &mut SettingsStore, cx| {
11107            store.update_user_settings(cx, |settings| {
11108                settings.workspace.close_panel_on_toggle = Some(true);
11109            });
11110        });
11111
11112        // Panel starts closed. Toggling should open and focus it.
11113        workspace.update_in(cx, |workspace, window, cx| {
11114            assert!(!workspace.right_dock().read(cx).is_open());
11115            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11116        });
11117
11118        workspace.update_in(cx, |workspace, window, cx| {
11119            assert!(
11120                workspace.right_dock().read(cx).is_open(),
11121                "Dock should be open after toggling from center"
11122            );
11123            assert!(
11124                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11125                "Panel should be focused after toggling from center"
11126            );
11127        });
11128
11129        // Panel is open and focused. Toggling should close the panel and
11130        // return focus to the center.
11131        workspace.update_in(cx, |workspace, window, cx| {
11132            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11133        });
11134
11135        workspace.update_in(cx, |workspace, window, cx| {
11136            assert!(
11137                !workspace.right_dock().read(cx).is_open(),
11138                "Dock should be closed after toggling from focused panel"
11139            );
11140            assert!(
11141                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11142                "Panel should not be focused after toggling from focused panel"
11143            );
11144        });
11145
11146        // Open the dock and focus something else so the panel is open but not
11147        // focused. Toggling should focus the panel (not close it).
11148        workspace.update_in(cx, |workspace, window, cx| {
11149            workspace
11150                .right_dock()
11151                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11152            window.focus(&pane.read(cx).focus_handle(cx), cx);
11153        });
11154
11155        workspace.update_in(cx, |workspace, window, cx| {
11156            assert!(workspace.right_dock().read(cx).is_open());
11157            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11158            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11159        });
11160
11161        workspace.update_in(cx, |workspace, window, cx| {
11162            assert!(
11163                workspace.right_dock().read(cx).is_open(),
11164                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11165            );
11166            assert!(
11167                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11168                "Panel should be focused after toggling an open-but-unfocused panel"
11169            );
11170        });
11171
11172        // Now disable the setting and verify the original behavior: toggling
11173        // from a focused panel moves focus to center but leaves the dock open.
11174        cx.update_global(|store: &mut SettingsStore, cx| {
11175            store.update_user_settings(cx, |settings| {
11176                settings.workspace.close_panel_on_toggle = Some(false);
11177            });
11178        });
11179
11180        workspace.update_in(cx, |workspace, window, cx| {
11181            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11182        });
11183
11184        workspace.update_in(cx, |workspace, window, cx| {
11185            assert!(
11186                workspace.right_dock().read(cx).is_open(),
11187                "Dock should remain open when setting is disabled"
11188            );
11189            assert!(
11190                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11191                "Panel should not be focused after toggling with setting disabled"
11192            );
11193        });
11194    }
11195
11196    #[gpui::test]
11197    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11198        init_test(cx);
11199        let fs = FakeFs::new(cx.executor());
11200
11201        let project = Project::test(fs, [], cx).await;
11202        let (workspace, cx) =
11203            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11204
11205        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11206            workspace.active_pane().clone()
11207        });
11208
11209        // Add an item to the pane so it can be zoomed
11210        workspace.update_in(cx, |workspace, window, cx| {
11211            let item = cx.new(TestItem::new);
11212            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11213        });
11214
11215        // Initially not zoomed
11216        workspace.update_in(cx, |workspace, _window, cx| {
11217            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11218            assert!(
11219                workspace.zoomed.is_none(),
11220                "Workspace should track no zoomed pane"
11221            );
11222            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11223        });
11224
11225        // Zoom In
11226        pane.update_in(cx, |pane, window, cx| {
11227            pane.zoom_in(&crate::ZoomIn, window, cx);
11228        });
11229
11230        workspace.update_in(cx, |workspace, window, cx| {
11231            assert!(
11232                pane.read(cx).is_zoomed(),
11233                "Pane should be zoomed after ZoomIn"
11234            );
11235            assert!(
11236                workspace.zoomed.is_some(),
11237                "Workspace should track the zoomed pane"
11238            );
11239            assert!(
11240                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11241                "ZoomIn should focus the pane"
11242            );
11243        });
11244
11245        // Zoom In again is a no-op
11246        pane.update_in(cx, |pane, window, cx| {
11247            pane.zoom_in(&crate::ZoomIn, window, cx);
11248        });
11249
11250        workspace.update_in(cx, |workspace, window, cx| {
11251            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11252            assert!(
11253                workspace.zoomed.is_some(),
11254                "Workspace still tracks zoomed pane"
11255            );
11256            assert!(
11257                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11258                "Pane remains focused after repeated ZoomIn"
11259            );
11260        });
11261
11262        // Zoom Out
11263        pane.update_in(cx, |pane, window, cx| {
11264            pane.zoom_out(&crate::ZoomOut, window, cx);
11265        });
11266
11267        workspace.update_in(cx, |workspace, _window, cx| {
11268            assert!(
11269                !pane.read(cx).is_zoomed(),
11270                "Pane should unzoom after ZoomOut"
11271            );
11272            assert!(
11273                workspace.zoomed.is_none(),
11274                "Workspace clears zoom tracking after ZoomOut"
11275            );
11276        });
11277
11278        // Zoom Out again is a no-op
11279        pane.update_in(cx, |pane, window, cx| {
11280            pane.zoom_out(&crate::ZoomOut, window, cx);
11281        });
11282
11283        workspace.update_in(cx, |workspace, _window, cx| {
11284            assert!(
11285                !pane.read(cx).is_zoomed(),
11286                "Second ZoomOut keeps pane unzoomed"
11287            );
11288            assert!(
11289                workspace.zoomed.is_none(),
11290                "Workspace remains without zoomed pane"
11291            );
11292        });
11293    }
11294
11295    #[gpui::test]
11296    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11297        init_test(cx);
11298        let fs = FakeFs::new(cx.executor());
11299
11300        let project = Project::test(fs, [], cx).await;
11301        let (workspace, cx) =
11302            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11303        workspace.update_in(cx, |workspace, window, cx| {
11304            // Open two docks
11305            let left_dock = workspace.dock_at_position(DockPosition::Left);
11306            let right_dock = workspace.dock_at_position(DockPosition::Right);
11307
11308            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11309            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11310
11311            assert!(left_dock.read(cx).is_open());
11312            assert!(right_dock.read(cx).is_open());
11313        });
11314
11315        workspace.update_in(cx, |workspace, window, cx| {
11316            // Toggle all docks - should close both
11317            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11318
11319            let left_dock = workspace.dock_at_position(DockPosition::Left);
11320            let right_dock = workspace.dock_at_position(DockPosition::Right);
11321            assert!(!left_dock.read(cx).is_open());
11322            assert!(!right_dock.read(cx).is_open());
11323        });
11324
11325        workspace.update_in(cx, |workspace, window, cx| {
11326            // Toggle again - should reopen both
11327            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11328
11329            let left_dock = workspace.dock_at_position(DockPosition::Left);
11330            let right_dock = workspace.dock_at_position(DockPosition::Right);
11331            assert!(left_dock.read(cx).is_open());
11332            assert!(right_dock.read(cx).is_open());
11333        });
11334    }
11335
11336    #[gpui::test]
11337    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11338        init_test(cx);
11339        let fs = FakeFs::new(cx.executor());
11340
11341        let project = Project::test(fs, [], cx).await;
11342        let (workspace, cx) =
11343            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11344        workspace.update_in(cx, |workspace, window, cx| {
11345            // Open two docks
11346            let left_dock = workspace.dock_at_position(DockPosition::Left);
11347            let right_dock = workspace.dock_at_position(DockPosition::Right);
11348
11349            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11350            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11351
11352            assert!(left_dock.read(cx).is_open());
11353            assert!(right_dock.read(cx).is_open());
11354        });
11355
11356        workspace.update_in(cx, |workspace, window, cx| {
11357            // Close them manually
11358            workspace.toggle_dock(DockPosition::Left, window, cx);
11359            workspace.toggle_dock(DockPosition::Right, window, cx);
11360
11361            let left_dock = workspace.dock_at_position(DockPosition::Left);
11362            let right_dock = workspace.dock_at_position(DockPosition::Right);
11363            assert!(!left_dock.read(cx).is_open());
11364            assert!(!right_dock.read(cx).is_open());
11365        });
11366
11367        workspace.update_in(cx, |workspace, window, cx| {
11368            // Toggle all docks - only last closed (right dock) should reopen
11369            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11370
11371            let left_dock = workspace.dock_at_position(DockPosition::Left);
11372            let right_dock = workspace.dock_at_position(DockPosition::Right);
11373            assert!(!left_dock.read(cx).is_open());
11374            assert!(right_dock.read(cx).is_open());
11375        });
11376    }
11377
11378    #[gpui::test]
11379    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
11380        init_test(cx);
11381        let fs = FakeFs::new(cx.executor());
11382        let project = Project::test(fs, [], cx).await;
11383        let (multi_workspace, cx) =
11384            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11385        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11386
11387        // Open two docks (left and right) with one panel each
11388        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
11389            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11390            workspace.add_panel(left_panel.clone(), window, cx);
11391
11392            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11393            workspace.add_panel(right_panel.clone(), window, cx);
11394
11395            workspace.toggle_dock(DockPosition::Left, window, cx);
11396            workspace.toggle_dock(DockPosition::Right, window, cx);
11397
11398            // Verify initial state
11399            assert!(
11400                workspace.left_dock().read(cx).is_open(),
11401                "Left dock should be open"
11402            );
11403            assert_eq!(
11404                workspace
11405                    .left_dock()
11406                    .read(cx)
11407                    .visible_panel()
11408                    .unwrap()
11409                    .panel_id(),
11410                left_panel.panel_id(),
11411                "Left panel should be visible in left dock"
11412            );
11413            assert!(
11414                workspace.right_dock().read(cx).is_open(),
11415                "Right dock should be open"
11416            );
11417            assert_eq!(
11418                workspace
11419                    .right_dock()
11420                    .read(cx)
11421                    .visible_panel()
11422                    .unwrap()
11423                    .panel_id(),
11424                right_panel.panel_id(),
11425                "Right panel should be visible in right dock"
11426            );
11427            assert!(
11428                !workspace.bottom_dock().read(cx).is_open(),
11429                "Bottom dock should be closed"
11430            );
11431
11432            (left_panel, right_panel)
11433        });
11434
11435        // Focus the left panel and move it to the next position (bottom dock)
11436        workspace.update_in(cx, |workspace, window, cx| {
11437            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
11438            assert!(
11439                left_panel.read(cx).focus_handle(cx).is_focused(window),
11440                "Left panel should be focused"
11441            );
11442        });
11443
11444        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11445
11446        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
11447        workspace.update(cx, |workspace, cx| {
11448            assert!(
11449                !workspace.left_dock().read(cx).is_open(),
11450                "Left dock should be closed"
11451            );
11452            assert!(
11453                workspace.bottom_dock().read(cx).is_open(),
11454                "Bottom dock should now be open"
11455            );
11456            assert_eq!(
11457                left_panel.read(cx).position,
11458                DockPosition::Bottom,
11459                "Left panel should now be in the bottom dock"
11460            );
11461            assert_eq!(
11462                workspace
11463                    .bottom_dock()
11464                    .read(cx)
11465                    .visible_panel()
11466                    .unwrap()
11467                    .panel_id(),
11468                left_panel.panel_id(),
11469                "Left panel should be the visible panel in the bottom dock"
11470            );
11471        });
11472
11473        // Toggle all docks off
11474        workspace.update_in(cx, |workspace, window, cx| {
11475            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11476            assert!(
11477                !workspace.left_dock().read(cx).is_open(),
11478                "Left dock should be closed"
11479            );
11480            assert!(
11481                !workspace.right_dock().read(cx).is_open(),
11482                "Right dock should be closed"
11483            );
11484            assert!(
11485                !workspace.bottom_dock().read(cx).is_open(),
11486                "Bottom dock should be closed"
11487            );
11488        });
11489
11490        // Toggle all docks back on and verify positions are restored
11491        workspace.update_in(cx, |workspace, window, cx| {
11492            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11493            assert!(
11494                !workspace.left_dock().read(cx).is_open(),
11495                "Left dock should remain closed"
11496            );
11497            assert!(
11498                workspace.right_dock().read(cx).is_open(),
11499                "Right dock should remain open"
11500            );
11501            assert!(
11502                workspace.bottom_dock().read(cx).is_open(),
11503                "Bottom dock should remain open"
11504            );
11505            assert_eq!(
11506                left_panel.read(cx).position,
11507                DockPosition::Bottom,
11508                "Left panel should remain in the bottom dock"
11509            );
11510            assert_eq!(
11511                right_panel.read(cx).position,
11512                DockPosition::Right,
11513                "Right panel should remain in the right dock"
11514            );
11515            assert_eq!(
11516                workspace
11517                    .bottom_dock()
11518                    .read(cx)
11519                    .visible_panel()
11520                    .unwrap()
11521                    .panel_id(),
11522                left_panel.panel_id(),
11523                "Left panel should be the visible panel in the right dock"
11524            );
11525        });
11526    }
11527
11528    #[gpui::test]
11529    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
11530        init_test(cx);
11531
11532        let fs = FakeFs::new(cx.executor());
11533
11534        let project = Project::test(fs, None, cx).await;
11535        let (workspace, cx) =
11536            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11537
11538        // Let's arrange the panes like this:
11539        //
11540        // +-----------------------+
11541        // |         top           |
11542        // +------+--------+-------+
11543        // | left | center | right |
11544        // +------+--------+-------+
11545        // |        bottom         |
11546        // +-----------------------+
11547
11548        let top_item = cx.new(|cx| {
11549            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
11550        });
11551        let bottom_item = cx.new(|cx| {
11552            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
11553        });
11554        let left_item = cx.new(|cx| {
11555            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
11556        });
11557        let right_item = cx.new(|cx| {
11558            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
11559        });
11560        let center_item = cx.new(|cx| {
11561            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
11562        });
11563
11564        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11565            let top_pane_id = workspace.active_pane().entity_id();
11566            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
11567            workspace.split_pane(
11568                workspace.active_pane().clone(),
11569                SplitDirection::Down,
11570                window,
11571                cx,
11572            );
11573            top_pane_id
11574        });
11575        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11576            let bottom_pane_id = workspace.active_pane().entity_id();
11577            workspace.add_item_to_active_pane(
11578                Box::new(bottom_item.clone()),
11579                None,
11580                false,
11581                window,
11582                cx,
11583            );
11584            workspace.split_pane(
11585                workspace.active_pane().clone(),
11586                SplitDirection::Up,
11587                window,
11588                cx,
11589            );
11590            bottom_pane_id
11591        });
11592        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11593            let left_pane_id = workspace.active_pane().entity_id();
11594            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
11595            workspace.split_pane(
11596                workspace.active_pane().clone(),
11597                SplitDirection::Right,
11598                window,
11599                cx,
11600            );
11601            left_pane_id
11602        });
11603        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11604            let right_pane_id = workspace.active_pane().entity_id();
11605            workspace.add_item_to_active_pane(
11606                Box::new(right_item.clone()),
11607                None,
11608                false,
11609                window,
11610                cx,
11611            );
11612            workspace.split_pane(
11613                workspace.active_pane().clone(),
11614                SplitDirection::Left,
11615                window,
11616                cx,
11617            );
11618            right_pane_id
11619        });
11620        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11621            let center_pane_id = workspace.active_pane().entity_id();
11622            workspace.add_item_to_active_pane(
11623                Box::new(center_item.clone()),
11624                None,
11625                false,
11626                window,
11627                cx,
11628            );
11629            center_pane_id
11630        });
11631        cx.executor().run_until_parked();
11632
11633        workspace.update_in(cx, |workspace, window, cx| {
11634            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
11635
11636            // Join into next from center pane into right
11637            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11638        });
11639
11640        workspace.update_in(cx, |workspace, window, cx| {
11641            let active_pane = workspace.active_pane();
11642            assert_eq!(right_pane_id, active_pane.entity_id());
11643            assert_eq!(2, active_pane.read(cx).items_len());
11644            let item_ids_in_pane =
11645                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11646            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11647            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11648
11649            // Join into next from right pane into bottom
11650            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11651        });
11652
11653        workspace.update_in(cx, |workspace, window, cx| {
11654            let active_pane = workspace.active_pane();
11655            assert_eq!(bottom_pane_id, active_pane.entity_id());
11656            assert_eq!(3, active_pane.read(cx).items_len());
11657            let item_ids_in_pane =
11658                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11659            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11660            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11661            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11662
11663            // Join into next from bottom pane into left
11664            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11665        });
11666
11667        workspace.update_in(cx, |workspace, window, cx| {
11668            let active_pane = workspace.active_pane();
11669            assert_eq!(left_pane_id, active_pane.entity_id());
11670            assert_eq!(4, active_pane.read(cx).items_len());
11671            let item_ids_in_pane =
11672                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11673            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11674            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11675            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11676            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11677
11678            // Join into next from left pane into top
11679            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11680        });
11681
11682        workspace.update_in(cx, |workspace, window, cx| {
11683            let active_pane = workspace.active_pane();
11684            assert_eq!(top_pane_id, active_pane.entity_id());
11685            assert_eq!(5, active_pane.read(cx).items_len());
11686            let item_ids_in_pane =
11687                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11688            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11689            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11690            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11691            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11692            assert!(item_ids_in_pane.contains(&top_item.item_id()));
11693
11694            // Single pane left: no-op
11695            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
11696        });
11697
11698        workspace.update(cx, |workspace, _cx| {
11699            let active_pane = workspace.active_pane();
11700            assert_eq!(top_pane_id, active_pane.entity_id());
11701        });
11702    }
11703
11704    fn add_an_item_to_active_pane(
11705        cx: &mut VisualTestContext,
11706        workspace: &Entity<Workspace>,
11707        item_id: u64,
11708    ) -> Entity<TestItem> {
11709        let item = cx.new(|cx| {
11710            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
11711                item_id,
11712                "item{item_id}.txt",
11713                cx,
11714            )])
11715        });
11716        workspace.update_in(cx, |workspace, window, cx| {
11717            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
11718        });
11719        item
11720    }
11721
11722    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
11723        workspace.update_in(cx, |workspace, window, cx| {
11724            workspace.split_pane(
11725                workspace.active_pane().clone(),
11726                SplitDirection::Right,
11727                window,
11728                cx,
11729            )
11730        })
11731    }
11732
11733    #[gpui::test]
11734    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
11735        init_test(cx);
11736        let fs = FakeFs::new(cx.executor());
11737        let project = Project::test(fs, None, cx).await;
11738        let (workspace, cx) =
11739            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11740
11741        add_an_item_to_active_pane(cx, &workspace, 1);
11742        split_pane(cx, &workspace);
11743        add_an_item_to_active_pane(cx, &workspace, 2);
11744        split_pane(cx, &workspace); // empty pane
11745        split_pane(cx, &workspace);
11746        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
11747
11748        cx.executor().run_until_parked();
11749
11750        workspace.update(cx, |workspace, cx| {
11751            let num_panes = workspace.panes().len();
11752            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11753            let active_item = workspace
11754                .active_pane()
11755                .read(cx)
11756                .active_item()
11757                .expect("item is in focus");
11758
11759            assert_eq!(num_panes, 4);
11760            assert_eq!(num_items_in_current_pane, 1);
11761            assert_eq!(active_item.item_id(), last_item.item_id());
11762        });
11763
11764        workspace.update_in(cx, |workspace, window, cx| {
11765            workspace.join_all_panes(window, cx);
11766        });
11767
11768        workspace.update(cx, |workspace, cx| {
11769            let num_panes = workspace.panes().len();
11770            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11771            let active_item = workspace
11772                .active_pane()
11773                .read(cx)
11774                .active_item()
11775                .expect("item is in focus");
11776
11777            assert_eq!(num_panes, 1);
11778            assert_eq!(num_items_in_current_pane, 3);
11779            assert_eq!(active_item.item_id(), last_item.item_id());
11780        });
11781    }
11782    struct TestModal(FocusHandle);
11783
11784    impl TestModal {
11785        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
11786            Self(cx.focus_handle())
11787        }
11788    }
11789
11790    impl EventEmitter<DismissEvent> for TestModal {}
11791
11792    impl Focusable for TestModal {
11793        fn focus_handle(&self, _cx: &App) -> FocusHandle {
11794            self.0.clone()
11795        }
11796    }
11797
11798    impl ModalView for TestModal {}
11799
11800    impl Render for TestModal {
11801        fn render(
11802            &mut self,
11803            _window: &mut Window,
11804            _cx: &mut Context<TestModal>,
11805        ) -> impl IntoElement {
11806            div().track_focus(&self.0)
11807        }
11808    }
11809
11810    #[gpui::test]
11811    async fn test_panels(cx: &mut gpui::TestAppContext) {
11812        init_test(cx);
11813        let fs = FakeFs::new(cx.executor());
11814
11815        let project = Project::test(fs, [], cx).await;
11816        let (multi_workspace, cx) =
11817            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11818        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11819
11820        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
11821            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11822            workspace.add_panel(panel_1.clone(), window, cx);
11823            workspace.toggle_dock(DockPosition::Left, window, cx);
11824            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11825            workspace.add_panel(panel_2.clone(), window, cx);
11826            workspace.toggle_dock(DockPosition::Right, window, cx);
11827
11828            let left_dock = workspace.left_dock();
11829            assert_eq!(
11830                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11831                panel_1.panel_id()
11832            );
11833            assert_eq!(
11834                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11835                panel_1.size(window, cx)
11836            );
11837
11838            left_dock.update(cx, |left_dock, cx| {
11839                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
11840            });
11841            assert_eq!(
11842                workspace
11843                    .right_dock()
11844                    .read(cx)
11845                    .visible_panel()
11846                    .unwrap()
11847                    .panel_id(),
11848                panel_2.panel_id(),
11849            );
11850
11851            (panel_1, panel_2)
11852        });
11853
11854        // Move panel_1 to the right
11855        panel_1.update_in(cx, |panel_1, window, cx| {
11856            panel_1.set_position(DockPosition::Right, window, cx)
11857        });
11858
11859        workspace.update_in(cx, |workspace, window, cx| {
11860            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
11861            // Since it was the only panel on the left, the left dock should now be closed.
11862            assert!(!workspace.left_dock().read(cx).is_open());
11863            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
11864            let right_dock = workspace.right_dock();
11865            assert_eq!(
11866                right_dock.read(cx).visible_panel().unwrap().panel_id(),
11867                panel_1.panel_id()
11868            );
11869            assert_eq!(
11870                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
11871                px(1337.)
11872            );
11873
11874            // Now we move panel_2 to the left
11875            panel_2.set_position(DockPosition::Left, window, cx);
11876        });
11877
11878        workspace.update(cx, |workspace, cx| {
11879            // Since panel_2 was not visible on the right, we don't open the left dock.
11880            assert!(!workspace.left_dock().read(cx).is_open());
11881            // And the right dock is unaffected in its displaying of panel_1
11882            assert!(workspace.right_dock().read(cx).is_open());
11883            assert_eq!(
11884                workspace
11885                    .right_dock()
11886                    .read(cx)
11887                    .visible_panel()
11888                    .unwrap()
11889                    .panel_id(),
11890                panel_1.panel_id(),
11891            );
11892        });
11893
11894        // Move panel_1 back to the left
11895        panel_1.update_in(cx, |panel_1, window, cx| {
11896            panel_1.set_position(DockPosition::Left, window, cx)
11897        });
11898
11899        workspace.update_in(cx, |workspace, window, cx| {
11900            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
11901            let left_dock = workspace.left_dock();
11902            assert!(left_dock.read(cx).is_open());
11903            assert_eq!(
11904                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11905                panel_1.panel_id()
11906            );
11907            assert_eq!(
11908                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11909                px(1337.)
11910            );
11911            // And the right dock should be closed as it no longer has any panels.
11912            assert!(!workspace.right_dock().read(cx).is_open());
11913
11914            // Now we move panel_1 to the bottom
11915            panel_1.set_position(DockPosition::Bottom, window, cx);
11916        });
11917
11918        workspace.update_in(cx, |workspace, window, cx| {
11919            // Since panel_1 was visible on the left, we close the left dock.
11920            assert!(!workspace.left_dock().read(cx).is_open());
11921            // The bottom dock is sized based on the panel's default size,
11922            // since the panel orientation changed from vertical to horizontal.
11923            let bottom_dock = workspace.bottom_dock();
11924            assert_eq!(
11925                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
11926                panel_1.size(window, cx),
11927            );
11928            // Close bottom dock and move panel_1 back to the left.
11929            bottom_dock.update(cx, |bottom_dock, cx| {
11930                bottom_dock.set_open(false, window, cx)
11931            });
11932            panel_1.set_position(DockPosition::Left, window, cx);
11933        });
11934
11935        // Emit activated event on panel 1
11936        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
11937
11938        // Now the left dock is open and panel_1 is active and focused.
11939        workspace.update_in(cx, |workspace, window, cx| {
11940            let left_dock = workspace.left_dock();
11941            assert!(left_dock.read(cx).is_open());
11942            assert_eq!(
11943                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11944                panel_1.panel_id(),
11945            );
11946            assert!(panel_1.focus_handle(cx).is_focused(window));
11947        });
11948
11949        // Emit closed event on panel 2, which is not active
11950        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11951
11952        // Wo don't close the left dock, because panel_2 wasn't the active panel
11953        workspace.update(cx, |workspace, cx| {
11954            let left_dock = workspace.left_dock();
11955            assert!(left_dock.read(cx).is_open());
11956            assert_eq!(
11957                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11958                panel_1.panel_id(),
11959            );
11960        });
11961
11962        // Emitting a ZoomIn event shows the panel as zoomed.
11963        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
11964        workspace.read_with(cx, |workspace, _| {
11965            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11966            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
11967        });
11968
11969        // Move panel to another dock while it is zoomed
11970        panel_1.update_in(cx, |panel, window, cx| {
11971            panel.set_position(DockPosition::Right, window, cx)
11972        });
11973        workspace.read_with(cx, |workspace, _| {
11974            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11975
11976            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11977        });
11978
11979        // This is a helper for getting a:
11980        // - valid focus on an element,
11981        // - that isn't a part of the panes and panels system of the Workspace,
11982        // - and doesn't trigger the 'on_focus_lost' API.
11983        let focus_other_view = {
11984            let workspace = workspace.clone();
11985            move |cx: &mut VisualTestContext| {
11986                workspace.update_in(cx, |workspace, window, cx| {
11987                    if workspace.active_modal::<TestModal>(cx).is_some() {
11988                        workspace.toggle_modal(window, cx, TestModal::new);
11989                        workspace.toggle_modal(window, cx, TestModal::new);
11990                    } else {
11991                        workspace.toggle_modal(window, cx, TestModal::new);
11992                    }
11993                })
11994            }
11995        };
11996
11997        // If focus is transferred to another view that's not a panel or another pane, we still show
11998        // the panel as zoomed.
11999        focus_other_view(cx);
12000        workspace.read_with(cx, |workspace, _| {
12001            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12002            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12003        });
12004
12005        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
12006        workspace.update_in(cx, |_workspace, window, cx| {
12007            cx.focus_self(window);
12008        });
12009        workspace.read_with(cx, |workspace, _| {
12010            assert_eq!(workspace.zoomed, None);
12011            assert_eq!(workspace.zoomed_position, None);
12012        });
12013
12014        // If focus is transferred again to another view that's not a panel or a pane, we won't
12015        // show the panel as zoomed because it wasn't zoomed before.
12016        focus_other_view(cx);
12017        workspace.read_with(cx, |workspace, _| {
12018            assert_eq!(workspace.zoomed, None);
12019            assert_eq!(workspace.zoomed_position, None);
12020        });
12021
12022        // When the panel is activated, it is zoomed again.
12023        cx.dispatch_action(ToggleRightDock);
12024        workspace.read_with(cx, |workspace, _| {
12025            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12026            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12027        });
12028
12029        // Emitting a ZoomOut event unzooms the panel.
12030        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
12031        workspace.read_with(cx, |workspace, _| {
12032            assert_eq!(workspace.zoomed, None);
12033            assert_eq!(workspace.zoomed_position, None);
12034        });
12035
12036        // Emit closed event on panel 1, which is active
12037        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12038
12039        // Now the left dock is closed, because panel_1 was the active panel
12040        workspace.update(cx, |workspace, cx| {
12041            let right_dock = workspace.right_dock();
12042            assert!(!right_dock.read(cx).is_open());
12043        });
12044    }
12045
12046    #[gpui::test]
12047    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
12048        init_test(cx);
12049
12050        let fs = FakeFs::new(cx.background_executor.clone());
12051        let project = Project::test(fs, [], cx).await;
12052        let (workspace, cx) =
12053            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12054        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12055
12056        let dirty_regular_buffer = cx.new(|cx| {
12057            TestItem::new(cx)
12058                .with_dirty(true)
12059                .with_label("1.txt")
12060                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12061        });
12062        let dirty_regular_buffer_2 = cx.new(|cx| {
12063            TestItem::new(cx)
12064                .with_dirty(true)
12065                .with_label("2.txt")
12066                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12067        });
12068        let dirty_multi_buffer_with_both = cx.new(|cx| {
12069            TestItem::new(cx)
12070                .with_dirty(true)
12071                .with_buffer_kind(ItemBufferKind::Multibuffer)
12072                .with_label("Fake Project Search")
12073                .with_project_items(&[
12074                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12075                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12076                ])
12077        });
12078        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12079        workspace.update_in(cx, |workspace, window, cx| {
12080            workspace.add_item(
12081                pane.clone(),
12082                Box::new(dirty_regular_buffer.clone()),
12083                None,
12084                false,
12085                false,
12086                window,
12087                cx,
12088            );
12089            workspace.add_item(
12090                pane.clone(),
12091                Box::new(dirty_regular_buffer_2.clone()),
12092                None,
12093                false,
12094                false,
12095                window,
12096                cx,
12097            );
12098            workspace.add_item(
12099                pane.clone(),
12100                Box::new(dirty_multi_buffer_with_both.clone()),
12101                None,
12102                false,
12103                false,
12104                window,
12105                cx,
12106            );
12107        });
12108
12109        pane.update_in(cx, |pane, window, cx| {
12110            pane.activate_item(2, true, true, window, cx);
12111            assert_eq!(
12112                pane.active_item().unwrap().item_id(),
12113                multi_buffer_with_both_files_id,
12114                "Should select the multi buffer in the pane"
12115            );
12116        });
12117        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12118            pane.close_other_items(
12119                &CloseOtherItems {
12120                    save_intent: Some(SaveIntent::Save),
12121                    close_pinned: true,
12122                },
12123                None,
12124                window,
12125                cx,
12126            )
12127        });
12128        cx.background_executor.run_until_parked();
12129        assert!(!cx.has_pending_prompt());
12130        close_all_but_multi_buffer_task
12131            .await
12132            .expect("Closing all buffers but the multi buffer failed");
12133        pane.update(cx, |pane, cx| {
12134            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
12135            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
12136            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
12137            assert_eq!(pane.items_len(), 1);
12138            assert_eq!(
12139                pane.active_item().unwrap().item_id(),
12140                multi_buffer_with_both_files_id,
12141                "Should have only the multi buffer left in the pane"
12142            );
12143            assert!(
12144                dirty_multi_buffer_with_both.read(cx).is_dirty,
12145                "The multi buffer containing the unsaved buffer should still be dirty"
12146            );
12147        });
12148
12149        dirty_regular_buffer.update(cx, |buffer, cx| {
12150            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
12151        });
12152
12153        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12154            pane.close_active_item(
12155                &CloseActiveItem {
12156                    save_intent: Some(SaveIntent::Close),
12157                    close_pinned: false,
12158                },
12159                window,
12160                cx,
12161            )
12162        });
12163        cx.background_executor.run_until_parked();
12164        assert!(
12165            cx.has_pending_prompt(),
12166            "Dirty multi buffer should prompt a save dialog"
12167        );
12168        cx.simulate_prompt_answer("Save");
12169        cx.background_executor.run_until_parked();
12170        close_multi_buffer_task
12171            .await
12172            .expect("Closing the multi buffer failed");
12173        pane.update(cx, |pane, cx| {
12174            assert_eq!(
12175                dirty_multi_buffer_with_both.read(cx).save_count,
12176                1,
12177                "Multi buffer item should get be saved"
12178            );
12179            // Test impl does not save inner items, so we do not assert them
12180            assert_eq!(
12181                pane.items_len(),
12182                0,
12183                "No more items should be left in the pane"
12184            );
12185            assert!(pane.active_item().is_none());
12186        });
12187    }
12188
12189    #[gpui::test]
12190    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
12191        cx: &mut TestAppContext,
12192    ) {
12193        init_test(cx);
12194
12195        let fs = FakeFs::new(cx.background_executor.clone());
12196        let project = Project::test(fs, [], cx).await;
12197        let (workspace, cx) =
12198            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12199        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12200
12201        let dirty_regular_buffer = cx.new(|cx| {
12202            TestItem::new(cx)
12203                .with_dirty(true)
12204                .with_label("1.txt")
12205                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12206        });
12207        let dirty_regular_buffer_2 = cx.new(|cx| {
12208            TestItem::new(cx)
12209                .with_dirty(true)
12210                .with_label("2.txt")
12211                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12212        });
12213        let clear_regular_buffer = cx.new(|cx| {
12214            TestItem::new(cx)
12215                .with_label("3.txt")
12216                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12217        });
12218
12219        let dirty_multi_buffer_with_both = cx.new(|cx| {
12220            TestItem::new(cx)
12221                .with_dirty(true)
12222                .with_buffer_kind(ItemBufferKind::Multibuffer)
12223                .with_label("Fake Project Search")
12224                .with_project_items(&[
12225                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12226                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12227                    clear_regular_buffer.read(cx).project_items[0].clone(),
12228                ])
12229        });
12230        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12231        workspace.update_in(cx, |workspace, window, cx| {
12232            workspace.add_item(
12233                pane.clone(),
12234                Box::new(dirty_regular_buffer.clone()),
12235                None,
12236                false,
12237                false,
12238                window,
12239                cx,
12240            );
12241            workspace.add_item(
12242                pane.clone(),
12243                Box::new(dirty_multi_buffer_with_both.clone()),
12244                None,
12245                false,
12246                false,
12247                window,
12248                cx,
12249            );
12250        });
12251
12252        pane.update_in(cx, |pane, window, cx| {
12253            pane.activate_item(1, true, true, window, cx);
12254            assert_eq!(
12255                pane.active_item().unwrap().item_id(),
12256                multi_buffer_with_both_files_id,
12257                "Should select the multi buffer in the pane"
12258            );
12259        });
12260        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12261            pane.close_active_item(
12262                &CloseActiveItem {
12263                    save_intent: None,
12264                    close_pinned: false,
12265                },
12266                window,
12267                cx,
12268            )
12269        });
12270        cx.background_executor.run_until_parked();
12271        assert!(
12272            cx.has_pending_prompt(),
12273            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
12274        );
12275    }
12276
12277    /// Tests that when `close_on_file_delete` is enabled, files are automatically
12278    /// closed when they are deleted from disk.
12279    #[gpui::test]
12280    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
12281        init_test(cx);
12282
12283        // Enable the close_on_disk_deletion setting
12284        cx.update_global(|store: &mut SettingsStore, cx| {
12285            store.update_user_settings(cx, |settings| {
12286                settings.workspace.close_on_file_delete = Some(true);
12287            });
12288        });
12289
12290        let fs = FakeFs::new(cx.background_executor.clone());
12291        let project = Project::test(fs, [], cx).await;
12292        let (workspace, cx) =
12293            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12294        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12295
12296        // Create a test item that simulates a file
12297        let item = cx.new(|cx| {
12298            TestItem::new(cx)
12299                .with_label("test.txt")
12300                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12301        });
12302
12303        // Add item to workspace
12304        workspace.update_in(cx, |workspace, window, cx| {
12305            workspace.add_item(
12306                pane.clone(),
12307                Box::new(item.clone()),
12308                None,
12309                false,
12310                false,
12311                window,
12312                cx,
12313            );
12314        });
12315
12316        // Verify the item is in the pane
12317        pane.read_with(cx, |pane, _| {
12318            assert_eq!(pane.items().count(), 1);
12319        });
12320
12321        // Simulate file deletion by setting the item's deleted state
12322        item.update(cx, |item, _| {
12323            item.set_has_deleted_file(true);
12324        });
12325
12326        // Emit UpdateTab event to trigger the close behavior
12327        cx.run_until_parked();
12328        item.update(cx, |_, cx| {
12329            cx.emit(ItemEvent::UpdateTab);
12330        });
12331
12332        // Allow the close operation to complete
12333        cx.run_until_parked();
12334
12335        // Verify the item was automatically closed
12336        pane.read_with(cx, |pane, _| {
12337            assert_eq!(
12338                pane.items().count(),
12339                0,
12340                "Item should be automatically closed when file is deleted"
12341            );
12342        });
12343    }
12344
12345    /// Tests that when `close_on_file_delete` is disabled (default), files remain
12346    /// open with a strikethrough when they are deleted from disk.
12347    #[gpui::test]
12348    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
12349        init_test(cx);
12350
12351        // Ensure close_on_disk_deletion is disabled (default)
12352        cx.update_global(|store: &mut SettingsStore, cx| {
12353            store.update_user_settings(cx, |settings| {
12354                settings.workspace.close_on_file_delete = Some(false);
12355            });
12356        });
12357
12358        let fs = FakeFs::new(cx.background_executor.clone());
12359        let project = Project::test(fs, [], cx).await;
12360        let (workspace, cx) =
12361            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12362        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12363
12364        // Create a test item that simulates a file
12365        let item = cx.new(|cx| {
12366            TestItem::new(cx)
12367                .with_label("test.txt")
12368                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12369        });
12370
12371        // Add item to workspace
12372        workspace.update_in(cx, |workspace, window, cx| {
12373            workspace.add_item(
12374                pane.clone(),
12375                Box::new(item.clone()),
12376                None,
12377                false,
12378                false,
12379                window,
12380                cx,
12381            );
12382        });
12383
12384        // Verify the item is in the pane
12385        pane.read_with(cx, |pane, _| {
12386            assert_eq!(pane.items().count(), 1);
12387        });
12388
12389        // Simulate file deletion
12390        item.update(cx, |item, _| {
12391            item.set_has_deleted_file(true);
12392        });
12393
12394        // Emit UpdateTab event
12395        cx.run_until_parked();
12396        item.update(cx, |_, cx| {
12397            cx.emit(ItemEvent::UpdateTab);
12398        });
12399
12400        // Allow any potential close operation to complete
12401        cx.run_until_parked();
12402
12403        // Verify the item remains open (with strikethrough)
12404        pane.read_with(cx, |pane, _| {
12405            assert_eq!(
12406                pane.items().count(),
12407                1,
12408                "Item should remain open when close_on_disk_deletion is disabled"
12409            );
12410        });
12411
12412        // Verify the item shows as deleted
12413        item.read_with(cx, |item, _| {
12414            assert!(
12415                item.has_deleted_file,
12416                "Item should be marked as having deleted file"
12417            );
12418        });
12419    }
12420
12421    /// Tests that dirty files are not automatically closed when deleted from disk,
12422    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
12423    /// unsaved changes without being prompted.
12424    #[gpui::test]
12425    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
12426        init_test(cx);
12427
12428        // Enable the close_on_file_delete setting
12429        cx.update_global(|store: &mut SettingsStore, cx| {
12430            store.update_user_settings(cx, |settings| {
12431                settings.workspace.close_on_file_delete = Some(true);
12432            });
12433        });
12434
12435        let fs = FakeFs::new(cx.background_executor.clone());
12436        let project = Project::test(fs, [], cx).await;
12437        let (workspace, cx) =
12438            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12439        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12440
12441        // Create a dirty test item
12442        let item = cx.new(|cx| {
12443            TestItem::new(cx)
12444                .with_dirty(true)
12445                .with_label("test.txt")
12446                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12447        });
12448
12449        // Add item to workspace
12450        workspace.update_in(cx, |workspace, window, cx| {
12451            workspace.add_item(
12452                pane.clone(),
12453                Box::new(item.clone()),
12454                None,
12455                false,
12456                false,
12457                window,
12458                cx,
12459            );
12460        });
12461
12462        // Simulate file deletion
12463        item.update(cx, |item, _| {
12464            item.set_has_deleted_file(true);
12465        });
12466
12467        // Emit UpdateTab event to trigger the close behavior
12468        cx.run_until_parked();
12469        item.update(cx, |_, cx| {
12470            cx.emit(ItemEvent::UpdateTab);
12471        });
12472
12473        // Allow any potential close operation to complete
12474        cx.run_until_parked();
12475
12476        // Verify the item remains open (dirty files are not auto-closed)
12477        pane.read_with(cx, |pane, _| {
12478            assert_eq!(
12479                pane.items().count(),
12480                1,
12481                "Dirty items should not be automatically closed even when file is deleted"
12482            );
12483        });
12484
12485        // Verify the item is marked as deleted and still dirty
12486        item.read_with(cx, |item, _| {
12487            assert!(
12488                item.has_deleted_file,
12489                "Item should be marked as having deleted file"
12490            );
12491            assert!(item.is_dirty, "Item should still be dirty");
12492        });
12493    }
12494
12495    /// Tests that navigation history is cleaned up when files are auto-closed
12496    /// due to deletion from disk.
12497    #[gpui::test]
12498    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
12499        init_test(cx);
12500
12501        // Enable the close_on_file_delete setting
12502        cx.update_global(|store: &mut SettingsStore, cx| {
12503            store.update_user_settings(cx, |settings| {
12504                settings.workspace.close_on_file_delete = Some(true);
12505            });
12506        });
12507
12508        let fs = FakeFs::new(cx.background_executor.clone());
12509        let project = Project::test(fs, [], cx).await;
12510        let (workspace, cx) =
12511            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12512        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12513
12514        // Create test items
12515        let item1 = cx.new(|cx| {
12516            TestItem::new(cx)
12517                .with_label("test1.txt")
12518                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
12519        });
12520        let item1_id = item1.item_id();
12521
12522        let item2 = cx.new(|cx| {
12523            TestItem::new(cx)
12524                .with_label("test2.txt")
12525                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
12526        });
12527
12528        // Add items to workspace
12529        workspace.update_in(cx, |workspace, window, cx| {
12530            workspace.add_item(
12531                pane.clone(),
12532                Box::new(item1.clone()),
12533                None,
12534                false,
12535                false,
12536                window,
12537                cx,
12538            );
12539            workspace.add_item(
12540                pane.clone(),
12541                Box::new(item2.clone()),
12542                None,
12543                false,
12544                false,
12545                window,
12546                cx,
12547            );
12548        });
12549
12550        // Activate item1 to ensure it gets navigation entries
12551        pane.update_in(cx, |pane, window, cx| {
12552            pane.activate_item(0, true, true, window, cx);
12553        });
12554
12555        // Switch to item2 and back to create navigation history
12556        pane.update_in(cx, |pane, window, cx| {
12557            pane.activate_item(1, true, true, window, cx);
12558        });
12559        cx.run_until_parked();
12560
12561        pane.update_in(cx, |pane, window, cx| {
12562            pane.activate_item(0, true, true, window, cx);
12563        });
12564        cx.run_until_parked();
12565
12566        // Simulate file deletion for item1
12567        item1.update(cx, |item, _| {
12568            item.set_has_deleted_file(true);
12569        });
12570
12571        // Emit UpdateTab event to trigger the close behavior
12572        item1.update(cx, |_, cx| {
12573            cx.emit(ItemEvent::UpdateTab);
12574        });
12575        cx.run_until_parked();
12576
12577        // Verify item1 was closed
12578        pane.read_with(cx, |pane, _| {
12579            assert_eq!(
12580                pane.items().count(),
12581                1,
12582                "Should have 1 item remaining after auto-close"
12583            );
12584        });
12585
12586        // Check navigation history after close
12587        let has_item = pane.read_with(cx, |pane, cx| {
12588            let mut has_item = false;
12589            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
12590                if entry.item.id() == item1_id {
12591                    has_item = true;
12592                }
12593            });
12594            has_item
12595        });
12596
12597        assert!(
12598            !has_item,
12599            "Navigation history should not contain closed item entries"
12600        );
12601    }
12602
12603    #[gpui::test]
12604    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
12605        cx: &mut TestAppContext,
12606    ) {
12607        init_test(cx);
12608
12609        let fs = FakeFs::new(cx.background_executor.clone());
12610        let project = Project::test(fs, [], cx).await;
12611        let (workspace, cx) =
12612            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12613        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12614
12615        let dirty_regular_buffer = cx.new(|cx| {
12616            TestItem::new(cx)
12617                .with_dirty(true)
12618                .with_label("1.txt")
12619                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12620        });
12621        let dirty_regular_buffer_2 = cx.new(|cx| {
12622            TestItem::new(cx)
12623                .with_dirty(true)
12624                .with_label("2.txt")
12625                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12626        });
12627        let clear_regular_buffer = cx.new(|cx| {
12628            TestItem::new(cx)
12629                .with_label("3.txt")
12630                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12631        });
12632
12633        let dirty_multi_buffer = cx.new(|cx| {
12634            TestItem::new(cx)
12635                .with_dirty(true)
12636                .with_buffer_kind(ItemBufferKind::Multibuffer)
12637                .with_label("Fake Project Search")
12638                .with_project_items(&[
12639                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12640                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12641                    clear_regular_buffer.read(cx).project_items[0].clone(),
12642                ])
12643        });
12644        workspace.update_in(cx, |workspace, window, cx| {
12645            workspace.add_item(
12646                pane.clone(),
12647                Box::new(dirty_regular_buffer.clone()),
12648                None,
12649                false,
12650                false,
12651                window,
12652                cx,
12653            );
12654            workspace.add_item(
12655                pane.clone(),
12656                Box::new(dirty_regular_buffer_2.clone()),
12657                None,
12658                false,
12659                false,
12660                window,
12661                cx,
12662            );
12663            workspace.add_item(
12664                pane.clone(),
12665                Box::new(dirty_multi_buffer.clone()),
12666                None,
12667                false,
12668                false,
12669                window,
12670                cx,
12671            );
12672        });
12673
12674        pane.update_in(cx, |pane, window, cx| {
12675            pane.activate_item(2, true, true, window, cx);
12676            assert_eq!(
12677                pane.active_item().unwrap().item_id(),
12678                dirty_multi_buffer.item_id(),
12679                "Should select the multi buffer in the pane"
12680            );
12681        });
12682        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12683            pane.close_active_item(
12684                &CloseActiveItem {
12685                    save_intent: None,
12686                    close_pinned: false,
12687                },
12688                window,
12689                cx,
12690            )
12691        });
12692        cx.background_executor.run_until_parked();
12693        assert!(
12694            !cx.has_pending_prompt(),
12695            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
12696        );
12697        close_multi_buffer_task
12698            .await
12699            .expect("Closing multi buffer failed");
12700        pane.update(cx, |pane, cx| {
12701            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
12702            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
12703            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
12704            assert_eq!(
12705                pane.items()
12706                    .map(|item| item.item_id())
12707                    .sorted()
12708                    .collect::<Vec<_>>(),
12709                vec![
12710                    dirty_regular_buffer.item_id(),
12711                    dirty_regular_buffer_2.item_id(),
12712                ],
12713                "Should have no multi buffer left in the pane"
12714            );
12715            assert!(dirty_regular_buffer.read(cx).is_dirty);
12716            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
12717        });
12718    }
12719
12720    #[gpui::test]
12721    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
12722        init_test(cx);
12723        let fs = FakeFs::new(cx.executor());
12724        let project = Project::test(fs, [], cx).await;
12725        let (multi_workspace, cx) =
12726            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12727        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12728
12729        // Add a new panel to the right dock, opening the dock and setting the
12730        // focus to the new panel.
12731        let panel = workspace.update_in(cx, |workspace, window, cx| {
12732            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12733            workspace.add_panel(panel.clone(), window, cx);
12734
12735            workspace
12736                .right_dock()
12737                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12738
12739            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12740
12741            panel
12742        });
12743
12744        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12745        // panel to the next valid position which, in this case, is the left
12746        // dock.
12747        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12748        workspace.update(cx, |workspace, cx| {
12749            assert!(workspace.left_dock().read(cx).is_open());
12750            assert_eq!(panel.read(cx).position, DockPosition::Left);
12751        });
12752
12753        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12754        // panel to the next valid position which, in this case, is the bottom
12755        // dock.
12756        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12757        workspace.update(cx, |workspace, cx| {
12758            assert!(workspace.bottom_dock().read(cx).is_open());
12759            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
12760        });
12761
12762        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
12763        // around moving the panel to its initial position, the right dock.
12764        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12765        workspace.update(cx, |workspace, cx| {
12766            assert!(workspace.right_dock().read(cx).is_open());
12767            assert_eq!(panel.read(cx).position, DockPosition::Right);
12768        });
12769
12770        // Remove focus from the panel, ensuring that, if the panel is not
12771        // focused, the `MoveFocusedPanelToNextPosition` action does not update
12772        // the panel's position, so the panel is still in the right dock.
12773        workspace.update_in(cx, |workspace, window, cx| {
12774            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12775        });
12776
12777        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12778        workspace.update(cx, |workspace, cx| {
12779            assert!(workspace.right_dock().read(cx).is_open());
12780            assert_eq!(panel.read(cx).position, DockPosition::Right);
12781        });
12782    }
12783
12784    #[gpui::test]
12785    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
12786        init_test(cx);
12787
12788        let fs = FakeFs::new(cx.executor());
12789        let project = Project::test(fs, [], cx).await;
12790        let (workspace, cx) =
12791            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12792
12793        let item_1 = cx.new(|cx| {
12794            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12795        });
12796        workspace.update_in(cx, |workspace, window, cx| {
12797            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12798            workspace.move_item_to_pane_in_direction(
12799                &MoveItemToPaneInDirection {
12800                    direction: SplitDirection::Right,
12801                    focus: true,
12802                    clone: false,
12803                },
12804                window,
12805                cx,
12806            );
12807            workspace.move_item_to_pane_at_index(
12808                &MoveItemToPane {
12809                    destination: 3,
12810                    focus: true,
12811                    clone: false,
12812                },
12813                window,
12814                cx,
12815            );
12816
12817            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
12818            assert_eq!(
12819                pane_items_paths(&workspace.active_pane, cx),
12820                vec!["first.txt".to_string()],
12821                "Single item was not moved anywhere"
12822            );
12823        });
12824
12825        let item_2 = cx.new(|cx| {
12826            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
12827        });
12828        workspace.update_in(cx, |workspace, window, cx| {
12829            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
12830            assert_eq!(
12831                pane_items_paths(&workspace.panes[0], cx),
12832                vec!["first.txt".to_string(), "second.txt".to_string()],
12833            );
12834            workspace.move_item_to_pane_in_direction(
12835                &MoveItemToPaneInDirection {
12836                    direction: SplitDirection::Right,
12837                    focus: true,
12838                    clone: false,
12839                },
12840                window,
12841                cx,
12842            );
12843
12844            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
12845            assert_eq!(
12846                pane_items_paths(&workspace.panes[0], cx),
12847                vec!["first.txt".to_string()],
12848                "After moving, one item should be left in the original pane"
12849            );
12850            assert_eq!(
12851                pane_items_paths(&workspace.panes[1], cx),
12852                vec!["second.txt".to_string()],
12853                "New item should have been moved to the new pane"
12854            );
12855        });
12856
12857        let item_3 = cx.new(|cx| {
12858            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
12859        });
12860        workspace.update_in(cx, |workspace, window, cx| {
12861            let original_pane = workspace.panes[0].clone();
12862            workspace.set_active_pane(&original_pane, window, cx);
12863            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
12864            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
12865            assert_eq!(
12866                pane_items_paths(&workspace.active_pane, cx),
12867                vec!["first.txt".to_string(), "third.txt".to_string()],
12868                "New pane should be ready to move one item out"
12869            );
12870
12871            workspace.move_item_to_pane_at_index(
12872                &MoveItemToPane {
12873                    destination: 3,
12874                    focus: true,
12875                    clone: false,
12876                },
12877                window,
12878                cx,
12879            );
12880            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
12881            assert_eq!(
12882                pane_items_paths(&workspace.active_pane, cx),
12883                vec!["first.txt".to_string()],
12884                "After moving, one item should be left in the original pane"
12885            );
12886            assert_eq!(
12887                pane_items_paths(&workspace.panes[1], cx),
12888                vec!["second.txt".to_string()],
12889                "Previously created pane should be unchanged"
12890            );
12891            assert_eq!(
12892                pane_items_paths(&workspace.panes[2], cx),
12893                vec!["third.txt".to_string()],
12894                "New item should have been moved to the new pane"
12895            );
12896        });
12897    }
12898
12899    #[gpui::test]
12900    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
12901        init_test(cx);
12902
12903        let fs = FakeFs::new(cx.executor());
12904        let project = Project::test(fs, [], cx).await;
12905        let (workspace, cx) =
12906            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12907
12908        let item_1 = cx.new(|cx| {
12909            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12910        });
12911        workspace.update_in(cx, |workspace, window, cx| {
12912            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12913            workspace.move_item_to_pane_in_direction(
12914                &MoveItemToPaneInDirection {
12915                    direction: SplitDirection::Right,
12916                    focus: true,
12917                    clone: true,
12918                },
12919                window,
12920                cx,
12921            );
12922        });
12923        cx.run_until_parked();
12924        workspace.update_in(cx, |workspace, window, cx| {
12925            workspace.move_item_to_pane_at_index(
12926                &MoveItemToPane {
12927                    destination: 3,
12928                    focus: true,
12929                    clone: true,
12930                },
12931                window,
12932                cx,
12933            );
12934        });
12935        cx.run_until_parked();
12936
12937        workspace.update(cx, |workspace, cx| {
12938            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
12939            for pane in workspace.panes() {
12940                assert_eq!(
12941                    pane_items_paths(pane, cx),
12942                    vec!["first.txt".to_string()],
12943                    "Single item exists in all panes"
12944                );
12945            }
12946        });
12947
12948        // verify that the active pane has been updated after waiting for the
12949        // pane focus event to fire and resolve
12950        workspace.read_with(cx, |workspace, _app| {
12951            assert_eq!(
12952                workspace.active_pane(),
12953                &workspace.panes[2],
12954                "The third pane should be the active one: {:?}",
12955                workspace.panes
12956            );
12957        })
12958    }
12959
12960    #[gpui::test]
12961    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
12962        init_test(cx);
12963
12964        let fs = FakeFs::new(cx.executor());
12965        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
12966
12967        let project = Project::test(fs, ["root".as_ref()], cx).await;
12968        let (workspace, cx) =
12969            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12970
12971        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12972        // Add item to pane A with project path
12973        let item_a = cx.new(|cx| {
12974            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12975        });
12976        workspace.update_in(cx, |workspace, window, cx| {
12977            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
12978        });
12979
12980        // Split to create pane B
12981        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
12982            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
12983        });
12984
12985        // Add item with SAME project path to pane B, and pin it
12986        let item_b = cx.new(|cx| {
12987            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12988        });
12989        pane_b.update_in(cx, |pane, window, cx| {
12990            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12991            pane.set_pinned_count(1);
12992        });
12993
12994        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
12995        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
12996
12997        // close_pinned: false should only close the unpinned copy
12998        workspace.update_in(cx, |workspace, window, cx| {
12999            workspace.close_item_in_all_panes(
13000                &CloseItemInAllPanes {
13001                    save_intent: Some(SaveIntent::Close),
13002                    close_pinned: false,
13003                },
13004                window,
13005                cx,
13006            )
13007        });
13008        cx.executor().run_until_parked();
13009
13010        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
13011        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13012        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
13013        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
13014
13015        // Split again, seeing as closing the previous item also closed its
13016        // pane, so only pane remains, which does not allow us to properly test
13017        // that both items close when `close_pinned: true`.
13018        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
13019            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
13020        });
13021
13022        // Add an item with the same project path to pane C so that
13023        // close_item_in_all_panes can determine what to close across all panes
13024        // (it reads the active item from the active pane, and split_pane
13025        // creates an empty pane).
13026        let item_c = cx.new(|cx| {
13027            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13028        });
13029        pane_c.update_in(cx, |pane, window, cx| {
13030            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
13031        });
13032
13033        // close_pinned: true should close the pinned copy too
13034        workspace.update_in(cx, |workspace, window, cx| {
13035            let panes_count = workspace.panes().len();
13036            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
13037
13038            workspace.close_item_in_all_panes(
13039                &CloseItemInAllPanes {
13040                    save_intent: Some(SaveIntent::Close),
13041                    close_pinned: true,
13042                },
13043                window,
13044                cx,
13045            )
13046        });
13047        cx.executor().run_until_parked();
13048
13049        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13050        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
13051        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
13052        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
13053    }
13054
13055    mod register_project_item_tests {
13056
13057        use super::*;
13058
13059        // View
13060        struct TestPngItemView {
13061            focus_handle: FocusHandle,
13062        }
13063        // Model
13064        struct TestPngItem {}
13065
13066        impl project::ProjectItem for TestPngItem {
13067            fn try_open(
13068                _project: &Entity<Project>,
13069                path: &ProjectPath,
13070                cx: &mut App,
13071            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13072                if path.path.extension().unwrap() == "png" {
13073                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
13074                } else {
13075                    None
13076                }
13077            }
13078
13079            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13080                None
13081            }
13082
13083            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13084                None
13085            }
13086
13087            fn is_dirty(&self) -> bool {
13088                false
13089            }
13090        }
13091
13092        impl Item for TestPngItemView {
13093            type Event = ();
13094            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13095                "".into()
13096            }
13097        }
13098        impl EventEmitter<()> for TestPngItemView {}
13099        impl Focusable for TestPngItemView {
13100            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13101                self.focus_handle.clone()
13102            }
13103        }
13104
13105        impl Render for TestPngItemView {
13106            fn render(
13107                &mut self,
13108                _window: &mut Window,
13109                _cx: &mut Context<Self>,
13110            ) -> impl IntoElement {
13111                Empty
13112            }
13113        }
13114
13115        impl ProjectItem for TestPngItemView {
13116            type Item = TestPngItem;
13117
13118            fn for_project_item(
13119                _project: Entity<Project>,
13120                _pane: Option<&Pane>,
13121                _item: Entity<Self::Item>,
13122                _: &mut Window,
13123                cx: &mut Context<Self>,
13124            ) -> Self
13125            where
13126                Self: Sized,
13127            {
13128                Self {
13129                    focus_handle: cx.focus_handle(),
13130                }
13131            }
13132        }
13133
13134        // View
13135        struct TestIpynbItemView {
13136            focus_handle: FocusHandle,
13137        }
13138        // Model
13139        struct TestIpynbItem {}
13140
13141        impl project::ProjectItem for TestIpynbItem {
13142            fn try_open(
13143                _project: &Entity<Project>,
13144                path: &ProjectPath,
13145                cx: &mut App,
13146            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13147                if path.path.extension().unwrap() == "ipynb" {
13148                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
13149                } else {
13150                    None
13151                }
13152            }
13153
13154            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13155                None
13156            }
13157
13158            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13159                None
13160            }
13161
13162            fn is_dirty(&self) -> bool {
13163                false
13164            }
13165        }
13166
13167        impl Item for TestIpynbItemView {
13168            type Event = ();
13169            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13170                "".into()
13171            }
13172        }
13173        impl EventEmitter<()> for TestIpynbItemView {}
13174        impl Focusable for TestIpynbItemView {
13175            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13176                self.focus_handle.clone()
13177            }
13178        }
13179
13180        impl Render for TestIpynbItemView {
13181            fn render(
13182                &mut self,
13183                _window: &mut Window,
13184                _cx: &mut Context<Self>,
13185            ) -> impl IntoElement {
13186                Empty
13187            }
13188        }
13189
13190        impl ProjectItem for TestIpynbItemView {
13191            type Item = TestIpynbItem;
13192
13193            fn for_project_item(
13194                _project: Entity<Project>,
13195                _pane: Option<&Pane>,
13196                _item: Entity<Self::Item>,
13197                _: &mut Window,
13198                cx: &mut Context<Self>,
13199            ) -> Self
13200            where
13201                Self: Sized,
13202            {
13203                Self {
13204                    focus_handle: cx.focus_handle(),
13205                }
13206            }
13207        }
13208
13209        struct TestAlternatePngItemView {
13210            focus_handle: FocusHandle,
13211        }
13212
13213        impl Item for TestAlternatePngItemView {
13214            type Event = ();
13215            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13216                "".into()
13217            }
13218        }
13219
13220        impl EventEmitter<()> for TestAlternatePngItemView {}
13221        impl Focusable for TestAlternatePngItemView {
13222            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13223                self.focus_handle.clone()
13224            }
13225        }
13226
13227        impl Render for TestAlternatePngItemView {
13228            fn render(
13229                &mut self,
13230                _window: &mut Window,
13231                _cx: &mut Context<Self>,
13232            ) -> impl IntoElement {
13233                Empty
13234            }
13235        }
13236
13237        impl ProjectItem for TestAlternatePngItemView {
13238            type Item = TestPngItem;
13239
13240            fn for_project_item(
13241                _project: Entity<Project>,
13242                _pane: Option<&Pane>,
13243                _item: Entity<Self::Item>,
13244                _: &mut Window,
13245                cx: &mut Context<Self>,
13246            ) -> Self
13247            where
13248                Self: Sized,
13249            {
13250                Self {
13251                    focus_handle: cx.focus_handle(),
13252                }
13253            }
13254        }
13255
13256        #[gpui::test]
13257        async fn test_register_project_item(cx: &mut TestAppContext) {
13258            init_test(cx);
13259
13260            cx.update(|cx| {
13261                register_project_item::<TestPngItemView>(cx);
13262                register_project_item::<TestIpynbItemView>(cx);
13263            });
13264
13265            let fs = FakeFs::new(cx.executor());
13266            fs.insert_tree(
13267                "/root1",
13268                json!({
13269                    "one.png": "BINARYDATAHERE",
13270                    "two.ipynb": "{ totally a notebook }",
13271                    "three.txt": "editing text, sure why not?"
13272                }),
13273            )
13274            .await;
13275
13276            let project = Project::test(fs, ["root1".as_ref()], cx).await;
13277            let (workspace, cx) =
13278                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13279
13280            let worktree_id = project.update(cx, |project, cx| {
13281                project.worktrees(cx).next().unwrap().read(cx).id()
13282            });
13283
13284            let handle = workspace
13285                .update_in(cx, |workspace, window, cx| {
13286                    let project_path = (worktree_id, rel_path("one.png"));
13287                    workspace.open_path(project_path, None, true, window, cx)
13288                })
13289                .await
13290                .unwrap();
13291
13292            // Now we can check if the handle we got back errored or not
13293            assert_eq!(
13294                handle.to_any_view().entity_type(),
13295                TypeId::of::<TestPngItemView>()
13296            );
13297
13298            let handle = workspace
13299                .update_in(cx, |workspace, window, cx| {
13300                    let project_path = (worktree_id, rel_path("two.ipynb"));
13301                    workspace.open_path(project_path, None, true, window, cx)
13302                })
13303                .await
13304                .unwrap();
13305
13306            assert_eq!(
13307                handle.to_any_view().entity_type(),
13308                TypeId::of::<TestIpynbItemView>()
13309            );
13310
13311            let handle = workspace
13312                .update_in(cx, |workspace, window, cx| {
13313                    let project_path = (worktree_id, rel_path("three.txt"));
13314                    workspace.open_path(project_path, None, true, window, cx)
13315                })
13316                .await;
13317            assert!(handle.is_err());
13318        }
13319
13320        #[gpui::test]
13321        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
13322            init_test(cx);
13323
13324            cx.update(|cx| {
13325                register_project_item::<TestPngItemView>(cx);
13326                register_project_item::<TestAlternatePngItemView>(cx);
13327            });
13328
13329            let fs = FakeFs::new(cx.executor());
13330            fs.insert_tree(
13331                "/root1",
13332                json!({
13333                    "one.png": "BINARYDATAHERE",
13334                    "two.ipynb": "{ totally a notebook }",
13335                    "three.txt": "editing text, sure why not?"
13336                }),
13337            )
13338            .await;
13339            let project = Project::test(fs, ["root1".as_ref()], cx).await;
13340            let (workspace, cx) =
13341                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13342            let worktree_id = project.update(cx, |project, cx| {
13343                project.worktrees(cx).next().unwrap().read(cx).id()
13344            });
13345
13346            let handle = workspace
13347                .update_in(cx, |workspace, window, cx| {
13348                    let project_path = (worktree_id, rel_path("one.png"));
13349                    workspace.open_path(project_path, None, true, window, cx)
13350                })
13351                .await
13352                .unwrap();
13353
13354            // This _must_ be the second item registered
13355            assert_eq!(
13356                handle.to_any_view().entity_type(),
13357                TypeId::of::<TestAlternatePngItemView>()
13358            );
13359
13360            let handle = workspace
13361                .update_in(cx, |workspace, window, cx| {
13362                    let project_path = (worktree_id, rel_path("three.txt"));
13363                    workspace.open_path(project_path, None, true, window, cx)
13364                })
13365                .await;
13366            assert!(handle.is_err());
13367        }
13368    }
13369
13370    #[gpui::test]
13371    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
13372        init_test(cx);
13373
13374        let fs = FakeFs::new(cx.executor());
13375        let project = Project::test(fs, [], cx).await;
13376        let (workspace, _cx) =
13377            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13378
13379        // Test with status bar shown (default)
13380        workspace.read_with(cx, |workspace, cx| {
13381            let visible = workspace.status_bar_visible(cx);
13382            assert!(visible, "Status bar should be visible by default");
13383        });
13384
13385        // Test with status bar hidden
13386        cx.update_global(|store: &mut SettingsStore, cx| {
13387            store.update_user_settings(cx, |settings| {
13388                settings.status_bar.get_or_insert_default().show = Some(false);
13389            });
13390        });
13391
13392        workspace.read_with(cx, |workspace, cx| {
13393            let visible = workspace.status_bar_visible(cx);
13394            assert!(!visible, "Status bar should be hidden when show is false");
13395        });
13396
13397        // Test with status bar shown explicitly
13398        cx.update_global(|store: &mut SettingsStore, cx| {
13399            store.update_user_settings(cx, |settings| {
13400                settings.status_bar.get_or_insert_default().show = Some(true);
13401            });
13402        });
13403
13404        workspace.read_with(cx, |workspace, cx| {
13405            let visible = workspace.status_bar_visible(cx);
13406            assert!(visible, "Status bar should be visible when show is true");
13407        });
13408    }
13409
13410    #[gpui::test]
13411    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
13412        init_test(cx);
13413
13414        let fs = FakeFs::new(cx.executor());
13415        let project = Project::test(fs, [], cx).await;
13416        let (multi_workspace, cx) =
13417            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13418        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13419        let panel = workspace.update_in(cx, |workspace, window, cx| {
13420            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13421            workspace.add_panel(panel.clone(), window, cx);
13422
13423            workspace
13424                .right_dock()
13425                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13426
13427            panel
13428        });
13429
13430        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13431        let item_a = cx.new(TestItem::new);
13432        let item_b = cx.new(TestItem::new);
13433        let item_a_id = item_a.entity_id();
13434        let item_b_id = item_b.entity_id();
13435
13436        pane.update_in(cx, |pane, window, cx| {
13437            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
13438            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13439        });
13440
13441        pane.read_with(cx, |pane, _| {
13442            assert_eq!(pane.items_len(), 2);
13443            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
13444        });
13445
13446        workspace.update_in(cx, |workspace, window, cx| {
13447            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13448        });
13449
13450        workspace.update_in(cx, |_, window, cx| {
13451            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13452        });
13453
13454        // Assert that the `pane::CloseActiveItem` action is handled at the
13455        // workspace level when one of the dock panels is focused and, in that
13456        // case, the center pane's active item is closed but the focus is not
13457        // moved.
13458        cx.dispatch_action(pane::CloseActiveItem::default());
13459        cx.run_until_parked();
13460
13461        pane.read_with(cx, |pane, _| {
13462            assert_eq!(pane.items_len(), 1);
13463            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
13464        });
13465
13466        workspace.update_in(cx, |workspace, window, cx| {
13467            assert!(workspace.right_dock().read(cx).is_open());
13468            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13469        });
13470    }
13471
13472    #[gpui::test]
13473    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
13474        init_test(cx);
13475        let fs = FakeFs::new(cx.executor());
13476
13477        let project_a = Project::test(fs.clone(), [], cx).await;
13478        let project_b = Project::test(fs, [], cx).await;
13479
13480        let multi_workspace_handle =
13481            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
13482        cx.run_until_parked();
13483
13484        let workspace_a = multi_workspace_handle
13485            .read_with(cx, |mw, _| mw.workspace().clone())
13486            .unwrap();
13487
13488        let _workspace_b = multi_workspace_handle
13489            .update(cx, |mw, window, cx| {
13490                mw.test_add_workspace(project_b, window, cx)
13491            })
13492            .unwrap();
13493
13494        // Switch to workspace A
13495        multi_workspace_handle
13496            .update(cx, |mw, window, cx| {
13497                mw.activate_index(0, window, cx);
13498            })
13499            .unwrap();
13500
13501        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
13502
13503        // Add a panel to workspace A's right dock and open the dock
13504        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
13505            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13506            workspace.add_panel(panel.clone(), window, cx);
13507            workspace
13508                .right_dock()
13509                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13510            panel
13511        });
13512
13513        // Focus the panel through the workspace (matching existing test pattern)
13514        workspace_a.update_in(cx, |workspace, window, cx| {
13515            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13516        });
13517
13518        // Zoom the panel
13519        panel.update_in(cx, |panel, window, cx| {
13520            panel.set_zoomed(true, window, cx);
13521        });
13522
13523        // Verify the panel is zoomed and the dock is open
13524        workspace_a.update_in(cx, |workspace, window, cx| {
13525            assert!(
13526                workspace.right_dock().read(cx).is_open(),
13527                "dock should be open before switch"
13528            );
13529            assert!(
13530                panel.is_zoomed(window, cx),
13531                "panel should be zoomed before switch"
13532            );
13533            assert!(
13534                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
13535                "panel should be focused before switch"
13536            );
13537        });
13538
13539        // Switch to workspace B
13540        multi_workspace_handle
13541            .update(cx, |mw, window, cx| {
13542                mw.activate_index(1, window, cx);
13543            })
13544            .unwrap();
13545        cx.run_until_parked();
13546
13547        // Switch back to workspace A
13548        multi_workspace_handle
13549            .update(cx, |mw, window, cx| {
13550                mw.activate_index(0, window, cx);
13551            })
13552            .unwrap();
13553        cx.run_until_parked();
13554
13555        // Verify the panel is still zoomed and the dock is still open
13556        workspace_a.update_in(cx, |workspace, window, cx| {
13557            assert!(
13558                workspace.right_dock().read(cx).is_open(),
13559                "dock should still be open after switching back"
13560            );
13561            assert!(
13562                panel.is_zoomed(window, cx),
13563                "panel should still be zoomed after switching back"
13564            );
13565        });
13566    }
13567
13568    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
13569        pane.read(cx)
13570            .items()
13571            .flat_map(|item| {
13572                item.project_paths(cx)
13573                    .into_iter()
13574                    .map(|path| path.path.display(PathStyle::local()).into_owned())
13575            })
13576            .collect()
13577    }
13578
13579    pub fn init_test(cx: &mut TestAppContext) {
13580        cx.update(|cx| {
13581            let settings_store = SettingsStore::test(cx);
13582            cx.set_global(settings_store);
13583            theme::init(theme::LoadThemes::JustBase, cx);
13584        });
13585    }
13586
13587    #[gpui::test]
13588    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
13589        use settings::{ThemeName, ThemeSelection};
13590        use theme::SystemAppearance;
13591        use zed_actions::theme::ToggleMode;
13592
13593        init_test(cx);
13594
13595        let fs = FakeFs::new(cx.executor());
13596        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
13597
13598        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
13599            .await;
13600
13601        // Build a test project and workspace view so the test can invoke
13602        // the workspace action handler the same way the UI would.
13603        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
13604        let (workspace, cx) =
13605            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13606
13607        // Seed the settings file with a plain static light theme so the
13608        // first toggle always starts from a known persisted state.
13609        workspace.update_in(cx, |_workspace, _window, cx| {
13610            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
13611            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
13612                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
13613            });
13614        });
13615        cx.executor().advance_clock(Duration::from_millis(200));
13616        cx.run_until_parked();
13617
13618        // Confirm the initial persisted settings contain the static theme
13619        // we just wrote before any toggling happens.
13620        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13621        assert!(settings_text.contains(r#""theme": "One Light""#));
13622
13623        // Toggle once. This should migrate the persisted theme settings
13624        // into light/dark slots and enable system mode.
13625        workspace.update_in(cx, |workspace, window, cx| {
13626            workspace.toggle_theme_mode(&ToggleMode, window, cx);
13627        });
13628        cx.executor().advance_clock(Duration::from_millis(200));
13629        cx.run_until_parked();
13630
13631        // 1. Static -> Dynamic
13632        // this assertion checks theme changed from static to dynamic.
13633        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13634        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
13635        assert_eq!(
13636            parsed["theme"],
13637            serde_json::json!({
13638                "mode": "system",
13639                "light": "One Light",
13640                "dark": "One Dark"
13641            })
13642        );
13643
13644        // 2. Toggle again, suppose it will change the mode to light
13645        workspace.update_in(cx, |workspace, window, cx| {
13646            workspace.toggle_theme_mode(&ToggleMode, window, cx);
13647        });
13648        cx.executor().advance_clock(Duration::from_millis(200));
13649        cx.run_until_parked();
13650
13651        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13652        assert!(settings_text.contains(r#""mode": "light""#));
13653    }
13654
13655    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
13656        let item = TestProjectItem::new(id, path, cx);
13657        item.update(cx, |item, _| {
13658            item.is_dirty = true;
13659        });
13660        item
13661    }
13662
13663    #[gpui::test]
13664    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
13665        cx: &mut gpui::TestAppContext,
13666    ) {
13667        init_test(cx);
13668        let fs = FakeFs::new(cx.executor());
13669
13670        let project = Project::test(fs, [], cx).await;
13671        let (workspace, cx) =
13672            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13673
13674        let panel = workspace.update_in(cx, |workspace, window, cx| {
13675            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13676            workspace.add_panel(panel.clone(), window, cx);
13677            workspace
13678                .right_dock()
13679                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13680            panel
13681        });
13682
13683        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13684        pane.update_in(cx, |pane, window, cx| {
13685            let item = cx.new(TestItem::new);
13686            pane.add_item(Box::new(item), true, true, None, window, cx);
13687        });
13688
13689        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
13690        // mirrors the real-world flow and avoids side effects from directly
13691        // focusing the panel while the center pane is active.
13692        workspace.update_in(cx, |workspace, window, cx| {
13693            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13694        });
13695
13696        panel.update_in(cx, |panel, window, cx| {
13697            panel.set_zoomed(true, window, cx);
13698        });
13699
13700        workspace.update_in(cx, |workspace, window, cx| {
13701            assert!(workspace.right_dock().read(cx).is_open());
13702            assert!(panel.is_zoomed(window, cx));
13703            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13704        });
13705
13706        // Simulate a spurious pane::Event::Focus on the center pane while the
13707        // panel still has focus. This mirrors what happens during macOS window
13708        // activation: the center pane fires a focus event even though actual
13709        // focus remains on the dock panel.
13710        pane.update_in(cx, |_, _, cx| {
13711            cx.emit(pane::Event::Focus);
13712        });
13713
13714        // The dock must remain open because the panel had focus at the time the
13715        // event was processed. Before the fix, dock_to_preserve was None for
13716        // panels that don't implement pane(), causing the dock to close.
13717        workspace.update_in(cx, |workspace, window, cx| {
13718            assert!(
13719                workspace.right_dock().read(cx).is_open(),
13720                "Dock should stay open when its zoomed panel (without pane()) still has focus"
13721            );
13722            assert!(panel.is_zoomed(window, cx));
13723        });
13724    }
13725}