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    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace,
   31    MultiWorkspaceEvent, NextWorkspace, PreviousWorkspace, Sidebar, SidebarHandle,
   32    ToggleWorkspaceSidebar,
   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, Axis, Bounds,
   55    Context, 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::{SerializedWindowBounds, model::SerializedWorkspace};
   80pub use persistence::{
   81    WorkspaceDb, delete_unloaded_items,
   82    model::{
   83        DockStructure, ItemId, SerializedMultiWorkspace, SerializedWorkspaceLocation,
   84        SessionWorkspace,
   85    },
   86    read_serialized_multi_workspaces, resolve_worktree_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::{dock::PanelSizeState, 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/// Moves Focus to the central panes in the workspace.
  404#[derive(Clone, Debug, PartialEq, Eq, Action)]
  405#[action(namespace = workspace)]
  406pub struct FocusCenterPane;
  407
  408///  Closes all items and panes in the workspace.
  409#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  410#[action(namespace = workspace)]
  411#[serde(deny_unknown_fields)]
  412pub struct CloseAllItemsAndPanes {
  413    #[serde(default)]
  414    pub save_intent: Option<SaveIntent>,
  415}
  416
  417/// Closes all inactive tabs and panes in the workspace.
  418#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct CloseInactiveTabsAndPanes {
  422    #[serde(default)]
  423    pub save_intent: Option<SaveIntent>,
  424}
  425
  426/// Closes the active item across all panes.
  427#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  428#[action(namespace = workspace)]
  429#[serde(deny_unknown_fields)]
  430pub struct CloseItemInAllPanes {
  431    #[serde(default)]
  432    pub save_intent: Option<SaveIntent>,
  433    #[serde(default)]
  434    pub close_pinned: bool,
  435}
  436
  437/// Sends a sequence of keystrokes to the active element.
  438#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440pub struct SendKeystrokes(pub String);
  441
  442actions!(
  443    project_symbols,
  444    [
  445        /// Toggles the project symbols search.
  446        #[action(name = "Toggle")]
  447        ToggleProjectSymbols
  448    ]
  449);
  450
  451/// Toggles the file finder interface.
  452#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  453#[action(namespace = file_finder, name = "Toggle")]
  454#[serde(deny_unknown_fields)]
  455pub struct ToggleFileFinder {
  456    #[serde(default)]
  457    pub separate_history: bool,
  458}
  459
  460/// Opens a new terminal in the center.
  461#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  462#[action(namespace = workspace)]
  463#[serde(deny_unknown_fields)]
  464pub struct NewCenterTerminal {
  465    /// If true, creates a local terminal even in remote projects.
  466    #[serde(default)]
  467    pub local: bool,
  468}
  469
  470/// Opens a new terminal.
  471#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  472#[action(namespace = workspace)]
  473#[serde(deny_unknown_fields)]
  474pub struct NewTerminal {
  475    /// If true, creates a local terminal even in remote projects.
  476    #[serde(default)]
  477    pub local: bool,
  478}
  479
  480/// Increases size of a currently focused dock by a given amount of pixels.
  481#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  482#[action(namespace = workspace)]
  483#[serde(deny_unknown_fields)]
  484pub struct IncreaseActiveDockSize {
  485    /// For 0px parameter, uses UI font size value.
  486    #[serde(default)]
  487    pub px: u32,
  488}
  489
  490/// Decreases size of a currently focused dock by a given amount of pixels.
  491#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  492#[action(namespace = workspace)]
  493#[serde(deny_unknown_fields)]
  494pub struct DecreaseActiveDockSize {
  495    /// For 0px parameter, uses UI font size value.
  496    #[serde(default)]
  497    pub px: u32,
  498}
  499
  500/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  501#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  502#[action(namespace = workspace)]
  503#[serde(deny_unknown_fields)]
  504pub struct IncreaseOpenDocksSize {
  505    /// For 0px parameter, uses UI font size value.
  506    #[serde(default)]
  507    pub px: u32,
  508}
  509
  510/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  511#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  512#[action(namespace = workspace)]
  513#[serde(deny_unknown_fields)]
  514pub struct DecreaseOpenDocksSize {
  515    /// For 0px parameter, uses UI font size value.
  516    #[serde(default)]
  517    pub px: u32,
  518}
  519
  520actions!(
  521    workspace,
  522    [
  523        /// Activates the pane to the left.
  524        ActivatePaneLeft,
  525        /// Activates the pane to the right.
  526        ActivatePaneRight,
  527        /// Activates the pane above.
  528        ActivatePaneUp,
  529        /// Activates the pane below.
  530        ActivatePaneDown,
  531        /// Swaps the current pane with the one to the left.
  532        SwapPaneLeft,
  533        /// Swaps the current pane with the one to the right.
  534        SwapPaneRight,
  535        /// Swaps the current pane with the one above.
  536        SwapPaneUp,
  537        /// Swaps the current pane with the one below.
  538        SwapPaneDown,
  539        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  540        SwapPaneAdjacent,
  541        /// Move the current pane to be at the far left.
  542        MovePaneLeft,
  543        /// Move the current pane to be at the far right.
  544        MovePaneRight,
  545        /// Move the current pane to be at the very top.
  546        MovePaneUp,
  547        /// Move the current pane to be at the very bottom.
  548        MovePaneDown,
  549    ]
  550);
  551
  552#[derive(PartialEq, Eq, Debug)]
  553pub enum CloseIntent {
  554    /// Quit the program entirely.
  555    Quit,
  556    /// Close a window.
  557    CloseWindow,
  558    /// Replace the workspace in an existing window.
  559    ReplaceWindow,
  560}
  561
  562#[derive(Clone)]
  563pub struct Toast {
  564    id: NotificationId,
  565    msg: Cow<'static, str>,
  566    autohide: bool,
  567    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  568}
  569
  570impl Toast {
  571    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  572        Toast {
  573            id,
  574            msg: msg.into(),
  575            on_click: None,
  576            autohide: false,
  577        }
  578    }
  579
  580    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  581    where
  582        M: Into<Cow<'static, str>>,
  583        F: Fn(&mut Window, &mut App) + 'static,
  584    {
  585        self.on_click = Some((message.into(), Arc::new(on_click)));
  586        self
  587    }
  588
  589    pub fn autohide(mut self) -> Self {
  590        self.autohide = true;
  591        self
  592    }
  593}
  594
  595impl PartialEq for Toast {
  596    fn eq(&self, other: &Self) -> bool {
  597        self.id == other.id
  598            && self.msg == other.msg
  599            && self.on_click.is_some() == other.on_click.is_some()
  600    }
  601}
  602
  603/// Opens a new terminal with the specified working directory.
  604#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  605#[action(namespace = workspace)]
  606#[serde(deny_unknown_fields)]
  607pub struct OpenTerminal {
  608    pub working_directory: PathBuf,
  609    /// If true, creates a local terminal even in remote projects.
  610    #[serde(default)]
  611    pub local: bool,
  612}
  613
  614#[derive(
  615    Clone,
  616    Copy,
  617    Debug,
  618    Default,
  619    Hash,
  620    PartialEq,
  621    Eq,
  622    PartialOrd,
  623    Ord,
  624    serde::Serialize,
  625    serde::Deserialize,
  626)]
  627pub struct WorkspaceId(i64);
  628
  629impl WorkspaceId {
  630    pub fn from_i64(value: i64) -> Self {
  631        Self(value)
  632    }
  633}
  634
  635impl StaticColumnCount for WorkspaceId {}
  636impl Bind for WorkspaceId {
  637    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  638        self.0.bind(statement, start_index)
  639    }
  640}
  641impl Column for WorkspaceId {
  642    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  643        i64::column(statement, start_index)
  644            .map(|(i, next_index)| (Self(i), next_index))
  645            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  646    }
  647}
  648impl From<WorkspaceId> for i64 {
  649    fn from(val: WorkspaceId) -> Self {
  650        val.0
  651    }
  652}
  653
  654fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  655    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  656        workspace_window
  657            .update(cx, |multi_workspace, window, cx| {
  658                let workspace = multi_workspace.workspace().clone();
  659                workspace.update(cx, |workspace, cx| {
  660                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  661                });
  662            })
  663            .ok();
  664    } else {
  665        let task = Workspace::new_local(Vec::new(), app_state.clone(), None, None, None, true, cx);
  666        cx.spawn(async move |cx| {
  667            let OpenResult { window, .. } = task.await?;
  668            window.update(cx, |multi_workspace, window, cx| {
  669                window.activate_window();
  670                let workspace = multi_workspace.workspace().clone();
  671                workspace.update(cx, |workspace, cx| {
  672                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  673                });
  674            })?;
  675            anyhow::Ok(())
  676        })
  677        .detach_and_log_err(cx);
  678    }
  679}
  680
  681pub fn prompt_for_open_path_and_open(
  682    workspace: &mut Workspace,
  683    app_state: Arc<AppState>,
  684    options: PathPromptOptions,
  685    create_new_window: bool,
  686    window: &mut Window,
  687    cx: &mut Context<Workspace>,
  688) {
  689    let paths = workspace.prompt_for_open_path(
  690        options,
  691        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  692        window,
  693        cx,
  694    );
  695    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  696    cx.spawn_in(window, async move |this, cx| {
  697        let Some(paths) = paths.await.log_err().flatten() else {
  698            return;
  699        };
  700        if !create_new_window {
  701            if let Some(handle) = multi_workspace_handle {
  702                if let Some(task) = handle
  703                    .update(cx, |multi_workspace, window, cx| {
  704                        multi_workspace.open_project(paths, window, cx)
  705                    })
  706                    .log_err()
  707                {
  708                    task.await.log_err();
  709                }
  710                return;
  711            }
  712        }
  713        if let Some(task) = this
  714            .update_in(cx, |this, window, cx| {
  715                this.open_workspace_for_paths(false, paths, window, cx)
  716            })
  717            .log_err()
  718        {
  719            task.await.log_err();
  720        }
  721    })
  722    .detach();
  723}
  724
  725pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  726    component::init();
  727    theme_preview::init(cx);
  728    toast_layer::init(cx);
  729    history_manager::init(app_state.fs.clone(), cx);
  730
  731    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  732        .on_action(|_: &Reload, cx| reload(cx))
  733        .on_action({
  734            let app_state = Arc::downgrade(&app_state);
  735            move |_: &Open, cx: &mut App| {
  736                if let Some(app_state) = app_state.upgrade() {
  737                    prompt_and_open_paths(
  738                        app_state,
  739                        PathPromptOptions {
  740                            files: true,
  741                            directories: true,
  742                            multiple: true,
  743                            prompt: None,
  744                        },
  745                        cx,
  746                    );
  747                }
  748            }
  749        })
  750        .on_action({
  751            let app_state = Arc::downgrade(&app_state);
  752            move |_: &OpenFiles, cx: &mut App| {
  753                let directories = cx.can_select_mixed_files_and_dirs();
  754                if let Some(app_state) = app_state.upgrade() {
  755                    prompt_and_open_paths(
  756                        app_state,
  757                        PathPromptOptions {
  758                            files: true,
  759                            directories,
  760                            multiple: true,
  761                            prompt: None,
  762                        },
  763                        cx,
  764                    );
  765                }
  766            }
  767        });
  768}
  769
  770type BuildProjectItemFn =
  771    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  772
  773type BuildProjectItemForPathFn =
  774    fn(
  775        &Entity<Project>,
  776        &ProjectPath,
  777        &mut Window,
  778        &mut App,
  779    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  780
  781#[derive(Clone, Default)]
  782struct ProjectItemRegistry {
  783    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  784    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  785}
  786
  787impl ProjectItemRegistry {
  788    fn register<T: ProjectItem>(&mut self) {
  789        self.build_project_item_fns_by_type.insert(
  790            TypeId::of::<T::Item>(),
  791            |item, project, pane, window, cx| {
  792                let item = item.downcast().unwrap();
  793                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  794                    as Box<dyn ItemHandle>
  795            },
  796        );
  797        self.build_project_item_for_path_fns
  798            .push(|project, project_path, window, cx| {
  799                let project_path = project_path.clone();
  800                let is_file = project
  801                    .read(cx)
  802                    .entry_for_path(&project_path, cx)
  803                    .is_some_and(|entry| entry.is_file());
  804                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  805                let is_local = project.read(cx).is_local();
  806                let project_item =
  807                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  808                let project = project.clone();
  809                Some(window.spawn(cx, async move |cx| {
  810                    match project_item.await.with_context(|| {
  811                        format!(
  812                            "opening project path {:?}",
  813                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  814                        )
  815                    }) {
  816                        Ok(project_item) => {
  817                            let project_item = project_item;
  818                            let project_entry_id: Option<ProjectEntryId> =
  819                                project_item.read_with(cx, project::ProjectItem::entry_id);
  820                            let build_workspace_item = Box::new(
  821                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  822                                    Box::new(cx.new(|cx| {
  823                                        T::for_project_item(
  824                                            project,
  825                                            Some(pane),
  826                                            project_item,
  827                                            window,
  828                                            cx,
  829                                        )
  830                                    })) as Box<dyn ItemHandle>
  831                                },
  832                            ) as Box<_>;
  833                            Ok((project_entry_id, build_workspace_item))
  834                        }
  835                        Err(e) => {
  836                            log::warn!("Failed to open a project item: {e:#}");
  837                            if e.error_code() == ErrorCode::Internal {
  838                                if let Some(abs_path) =
  839                                    entry_abs_path.as_deref().filter(|_| is_file)
  840                                {
  841                                    if let Some(broken_project_item_view) =
  842                                        cx.update(|window, cx| {
  843                                            T::for_broken_project_item(
  844                                                abs_path, is_local, &e, window, cx,
  845                                            )
  846                                        })?
  847                                    {
  848                                        let build_workspace_item = Box::new(
  849                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  850                                                cx.new(|_| broken_project_item_view).boxed_clone()
  851                                            },
  852                                        )
  853                                        as Box<_>;
  854                                        return Ok((None, build_workspace_item));
  855                                    }
  856                                }
  857                            }
  858                            Err(e)
  859                        }
  860                    }
  861                }))
  862            });
  863    }
  864
  865    fn open_path(
  866        &self,
  867        project: &Entity<Project>,
  868        path: &ProjectPath,
  869        window: &mut Window,
  870        cx: &mut App,
  871    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  872        let Some(open_project_item) = self
  873            .build_project_item_for_path_fns
  874            .iter()
  875            .rev()
  876            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  877        else {
  878            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  879        };
  880        open_project_item
  881    }
  882
  883    fn build_item<T: project::ProjectItem>(
  884        &self,
  885        item: Entity<T>,
  886        project: Entity<Project>,
  887        pane: Option<&Pane>,
  888        window: &mut Window,
  889        cx: &mut App,
  890    ) -> Option<Box<dyn ItemHandle>> {
  891        let build = self
  892            .build_project_item_fns_by_type
  893            .get(&TypeId::of::<T>())?;
  894        Some(build(item.into_any(), project, pane, window, cx))
  895    }
  896}
  897
  898type WorkspaceItemBuilder =
  899    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  900
  901impl Global for ProjectItemRegistry {}
  902
  903/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  904/// items will get a chance to open the file, starting from the project item that
  905/// was added last.
  906pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  907    cx.default_global::<ProjectItemRegistry>().register::<I>();
  908}
  909
  910#[derive(Default)]
  911pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  912
  913struct FollowableViewDescriptor {
  914    from_state_proto: fn(
  915        Entity<Workspace>,
  916        ViewId,
  917        &mut Option<proto::view::Variant>,
  918        &mut Window,
  919        &mut App,
  920    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  921    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  922}
  923
  924impl Global for FollowableViewRegistry {}
  925
  926impl FollowableViewRegistry {
  927    pub fn register<I: FollowableItem>(cx: &mut App) {
  928        cx.default_global::<Self>().0.insert(
  929            TypeId::of::<I>(),
  930            FollowableViewDescriptor {
  931                from_state_proto: |workspace, id, state, window, cx| {
  932                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  933                        cx.foreground_executor()
  934                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  935                    })
  936                },
  937                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  938            },
  939        );
  940    }
  941
  942    pub fn from_state_proto(
  943        workspace: Entity<Workspace>,
  944        view_id: ViewId,
  945        mut state: Option<proto::view::Variant>,
  946        window: &mut Window,
  947        cx: &mut App,
  948    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  949        cx.update_default_global(|this: &mut Self, cx| {
  950            this.0.values().find_map(|descriptor| {
  951                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  952            })
  953        })
  954    }
  955
  956    pub fn to_followable_view(
  957        view: impl Into<AnyView>,
  958        cx: &App,
  959    ) -> Option<Box<dyn FollowableItemHandle>> {
  960        let this = cx.try_global::<Self>()?;
  961        let view = view.into();
  962        let descriptor = this.0.get(&view.entity_type())?;
  963        Some((descriptor.to_followable_view)(&view))
  964    }
  965}
  966
  967#[derive(Copy, Clone)]
  968struct SerializableItemDescriptor {
  969    deserialize: fn(
  970        Entity<Project>,
  971        WeakEntity<Workspace>,
  972        WorkspaceId,
  973        ItemId,
  974        &mut Window,
  975        &mut Context<Pane>,
  976    ) -> Task<Result<Box<dyn ItemHandle>>>,
  977    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  978    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  979}
  980
  981#[derive(Default)]
  982struct SerializableItemRegistry {
  983    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  984    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  985}
  986
  987impl Global for SerializableItemRegistry {}
  988
  989impl SerializableItemRegistry {
  990    fn deserialize(
  991        item_kind: &str,
  992        project: Entity<Project>,
  993        workspace: WeakEntity<Workspace>,
  994        workspace_id: WorkspaceId,
  995        item_item: ItemId,
  996        window: &mut Window,
  997        cx: &mut Context<Pane>,
  998    ) -> Task<Result<Box<dyn ItemHandle>>> {
  999        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1000            return Task::ready(Err(anyhow!(
 1001                "cannot deserialize {}, descriptor not found",
 1002                item_kind
 1003            )));
 1004        };
 1005
 1006        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1007    }
 1008
 1009    fn cleanup(
 1010        item_kind: &str,
 1011        workspace_id: WorkspaceId,
 1012        loaded_items: Vec<ItemId>,
 1013        window: &mut Window,
 1014        cx: &mut App,
 1015    ) -> Task<Result<()>> {
 1016        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1017            return Task::ready(Err(anyhow!(
 1018                "cannot cleanup {}, descriptor not found",
 1019                item_kind
 1020            )));
 1021        };
 1022
 1023        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1024    }
 1025
 1026    fn view_to_serializable_item_handle(
 1027        view: AnyView,
 1028        cx: &App,
 1029    ) -> Option<Box<dyn SerializableItemHandle>> {
 1030        let this = cx.try_global::<Self>()?;
 1031        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1032        Some((descriptor.view_to_serializable_item)(view))
 1033    }
 1034
 1035    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1036        let this = cx.try_global::<Self>()?;
 1037        this.descriptors_by_kind.get(item_kind).copied()
 1038    }
 1039}
 1040
 1041pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1042    let serialized_item_kind = I::serialized_item_kind();
 1043
 1044    let registry = cx.default_global::<SerializableItemRegistry>();
 1045    let descriptor = SerializableItemDescriptor {
 1046        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1047            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1048            cx.foreground_executor()
 1049                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1050        },
 1051        cleanup: |workspace_id, loaded_items, window, cx| {
 1052            I::cleanup(workspace_id, loaded_items, window, cx)
 1053        },
 1054        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1055    };
 1056    registry
 1057        .descriptors_by_kind
 1058        .insert(Arc::from(serialized_item_kind), descriptor);
 1059    registry
 1060        .descriptors_by_type
 1061        .insert(TypeId::of::<I>(), descriptor);
 1062}
 1063
 1064pub struct AppState {
 1065    pub languages: Arc<LanguageRegistry>,
 1066    pub client: Arc<Client>,
 1067    pub user_store: Entity<UserStore>,
 1068    pub workspace_store: Entity<WorkspaceStore>,
 1069    pub fs: Arc<dyn fs::Fs>,
 1070    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1071    pub node_runtime: NodeRuntime,
 1072    pub session: Entity<AppSession>,
 1073}
 1074
 1075struct GlobalAppState(Weak<AppState>);
 1076
 1077impl Global for GlobalAppState {}
 1078
 1079pub struct WorkspaceStore {
 1080    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1081    client: Arc<Client>,
 1082    _subscriptions: Vec<client::Subscription>,
 1083}
 1084
 1085#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1086pub enum CollaboratorId {
 1087    PeerId(PeerId),
 1088    Agent,
 1089}
 1090
 1091impl From<PeerId> for CollaboratorId {
 1092    fn from(peer_id: PeerId) -> Self {
 1093        CollaboratorId::PeerId(peer_id)
 1094    }
 1095}
 1096
 1097impl From<&PeerId> for CollaboratorId {
 1098    fn from(peer_id: &PeerId) -> Self {
 1099        CollaboratorId::PeerId(*peer_id)
 1100    }
 1101}
 1102
 1103#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1104struct Follower {
 1105    project_id: Option<u64>,
 1106    peer_id: PeerId,
 1107}
 1108
 1109impl AppState {
 1110    #[track_caller]
 1111    pub fn global(cx: &App) -> Weak<Self> {
 1112        cx.global::<GlobalAppState>().0.clone()
 1113    }
 1114    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1115        cx.try_global::<GlobalAppState>()
 1116            .map(|state| state.0.clone())
 1117    }
 1118    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1119        cx.set_global(GlobalAppState(state));
 1120    }
 1121
 1122    #[cfg(any(test, feature = "test-support"))]
 1123    pub fn test(cx: &mut App) -> Arc<Self> {
 1124        use fs::Fs;
 1125        use node_runtime::NodeRuntime;
 1126        use session::Session;
 1127        use settings::SettingsStore;
 1128
 1129        if !cx.has_global::<SettingsStore>() {
 1130            let settings_store = SettingsStore::test(cx);
 1131            cx.set_global(settings_store);
 1132        }
 1133
 1134        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1135        <dyn Fs>::set_global(fs.clone(), cx);
 1136        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1137        let clock = Arc::new(clock::FakeSystemClock::new());
 1138        let http_client = http_client::FakeHttpClient::with_404_response();
 1139        let client = Client::new(clock, http_client, cx);
 1140        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1141        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1142        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1143
 1144        theme::init(theme::LoadThemes::JustBase, cx);
 1145        client::init(&client, cx);
 1146
 1147        Arc::new(Self {
 1148            client,
 1149            fs,
 1150            languages,
 1151            user_store,
 1152            workspace_store,
 1153            node_runtime: NodeRuntime::unavailable(),
 1154            build_window_options: |_, _| Default::default(),
 1155            session,
 1156        })
 1157    }
 1158}
 1159
 1160struct DelayedDebouncedEditAction {
 1161    task: Option<Task<()>>,
 1162    cancel_channel: Option<oneshot::Sender<()>>,
 1163}
 1164
 1165impl DelayedDebouncedEditAction {
 1166    fn new() -> DelayedDebouncedEditAction {
 1167        DelayedDebouncedEditAction {
 1168            task: None,
 1169            cancel_channel: None,
 1170        }
 1171    }
 1172
 1173    fn fire_new<F>(
 1174        &mut self,
 1175        delay: Duration,
 1176        window: &mut Window,
 1177        cx: &mut Context<Workspace>,
 1178        func: F,
 1179    ) where
 1180        F: 'static
 1181            + Send
 1182            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1183    {
 1184        if let Some(channel) = self.cancel_channel.take() {
 1185            _ = channel.send(());
 1186        }
 1187
 1188        let (sender, mut receiver) = oneshot::channel::<()>();
 1189        self.cancel_channel = Some(sender);
 1190
 1191        let previous_task = self.task.take();
 1192        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1193            let mut timer = cx.background_executor().timer(delay).fuse();
 1194            if let Some(previous_task) = previous_task {
 1195                previous_task.await;
 1196            }
 1197
 1198            futures::select_biased! {
 1199                _ = receiver => return,
 1200                    _ = timer => {}
 1201            }
 1202
 1203            if let Some(result) = workspace
 1204                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1205                .log_err()
 1206            {
 1207                result.await.log_err();
 1208            }
 1209        }));
 1210    }
 1211}
 1212
 1213pub enum Event {
 1214    PaneAdded(Entity<Pane>),
 1215    PaneRemoved,
 1216    ItemAdded {
 1217        item: Box<dyn ItemHandle>,
 1218    },
 1219    ActiveItemChanged,
 1220    ItemRemoved {
 1221        item_id: EntityId,
 1222    },
 1223    UserSavedItem {
 1224        pane: WeakEntity<Pane>,
 1225        item: Box<dyn WeakItemHandle>,
 1226        save_intent: SaveIntent,
 1227    },
 1228    ContactRequestedJoin(u64),
 1229    WorkspaceCreated(WeakEntity<Workspace>),
 1230    OpenBundledFile {
 1231        text: Cow<'static, str>,
 1232        title: &'static str,
 1233        language: &'static str,
 1234    },
 1235    ZoomChanged,
 1236    ModalOpened,
 1237    Activate,
 1238    PanelAdded(AnyView),
 1239}
 1240
 1241#[derive(Debug, Clone)]
 1242pub enum OpenVisible {
 1243    All,
 1244    None,
 1245    OnlyFiles,
 1246    OnlyDirectories,
 1247}
 1248
 1249enum WorkspaceLocation {
 1250    // Valid local paths or SSH project to serialize
 1251    Location(SerializedWorkspaceLocation, PathList),
 1252    // No valid location found hence clear session id
 1253    DetachFromSession,
 1254    // No valid location found to serialize
 1255    None,
 1256}
 1257
 1258type PromptForNewPath = Box<
 1259    dyn Fn(
 1260        &mut Workspace,
 1261        DirectoryLister,
 1262        Option<String>,
 1263        &mut Window,
 1264        &mut Context<Workspace>,
 1265    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1266>;
 1267
 1268type PromptForOpenPath = Box<
 1269    dyn Fn(
 1270        &mut Workspace,
 1271        DirectoryLister,
 1272        &mut Window,
 1273        &mut Context<Workspace>,
 1274    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1275>;
 1276
 1277#[derive(Default)]
 1278struct DispatchingKeystrokes {
 1279    dispatched: HashSet<Vec<Keystroke>>,
 1280    queue: VecDeque<Keystroke>,
 1281    task: Option<Shared<Task<()>>>,
 1282}
 1283
 1284/// Collects everything project-related for a certain window opened.
 1285/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1286///
 1287/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1288/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1289/// that can be used to register a global action to be triggered from any place in the window.
 1290pub struct Workspace {
 1291    weak_self: WeakEntity<Self>,
 1292    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1293    zoomed: Option<AnyWeakView>,
 1294    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1295    zoomed_position: Option<DockPosition>,
 1296    center: PaneGroup,
 1297    left_dock: Entity<Dock>,
 1298    bottom_dock: Entity<Dock>,
 1299    right_dock: Entity<Dock>,
 1300    panes: Vec<Entity<Pane>>,
 1301    active_worktree_override: Option<WorktreeId>,
 1302    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1303    active_pane: Entity<Pane>,
 1304    last_active_center_pane: Option<WeakEntity<Pane>>,
 1305    last_active_view_id: Option<proto::ViewId>,
 1306    status_bar: Entity<StatusBar>,
 1307    pub(crate) modal_layer: Entity<ModalLayer>,
 1308    toast_layer: Entity<ToastLayer>,
 1309    titlebar_item: Option<AnyView>,
 1310    notifications: Notifications,
 1311    suppressed_notifications: HashSet<NotificationId>,
 1312    project: Entity<Project>,
 1313    follower_states: HashMap<CollaboratorId, FollowerState>,
 1314    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1315    window_edited: bool,
 1316    last_window_title: Option<String>,
 1317    dirty_items: HashMap<EntityId, Subscription>,
 1318    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1319    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1320    database_id: Option<WorkspaceId>,
 1321    app_state: Arc<AppState>,
 1322    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1323    _subscriptions: Vec<Subscription>,
 1324    _apply_leader_updates: Task<Result<()>>,
 1325    _observe_current_user: Task<Result<()>>,
 1326    _schedule_serialize_workspace: Option<Task<()>>,
 1327    _serialize_workspace_task: Option<Task<()>>,
 1328    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1329    pane_history_timestamp: Arc<AtomicUsize>,
 1330    bounds: Bounds<Pixels>,
 1331    pub centered_layout: bool,
 1332    bounds_save_task_queued: Option<Task<()>>,
 1333    on_prompt_for_new_path: Option<PromptForNewPath>,
 1334    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1335    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1336    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1337    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1338    _items_serializer: Task<Result<()>>,
 1339    session_id: Option<String>,
 1340    scheduled_tasks: Vec<Task<()>>,
 1341    last_open_dock_positions: Vec<DockPosition>,
 1342    removing: bool,
 1343    _panels_task: Option<Task<Result<()>>>,
 1344    sidebar_focus_handle: Option<FocusHandle>,
 1345}
 1346
 1347impl EventEmitter<Event> for Workspace {}
 1348
 1349#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1350pub struct ViewId {
 1351    pub creator: CollaboratorId,
 1352    pub id: u64,
 1353}
 1354
 1355pub struct FollowerState {
 1356    center_pane: Entity<Pane>,
 1357    dock_pane: Option<Entity<Pane>>,
 1358    active_view_id: Option<ViewId>,
 1359    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1360}
 1361
 1362struct FollowerView {
 1363    view: Box<dyn FollowableItemHandle>,
 1364    location: Option<proto::PanelId>,
 1365}
 1366
 1367impl Workspace {
 1368    pub fn new(
 1369        workspace_id: Option<WorkspaceId>,
 1370        project: Entity<Project>,
 1371        app_state: Arc<AppState>,
 1372        window: &mut Window,
 1373        cx: &mut Context<Self>,
 1374    ) -> Self {
 1375        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1376            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1377                if let TrustedWorktreesEvent::Trusted(..) = e {
 1378                    // Do not persist auto trusted worktrees
 1379                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1380                        worktrees_store.update(cx, |worktrees_store, cx| {
 1381                            worktrees_store.schedule_serialization(
 1382                                cx,
 1383                                |new_trusted_worktrees, cx| {
 1384                                    let timeout =
 1385                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1386                                    let db = WorkspaceDb::global(cx);
 1387                                    cx.background_spawn(async move {
 1388                                        timeout.await;
 1389                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1390                                            .await
 1391                                            .log_err();
 1392                                    })
 1393                                },
 1394                            )
 1395                        });
 1396                    }
 1397                }
 1398            })
 1399            .detach();
 1400
 1401            cx.observe_global::<SettingsStore>(|_, cx| {
 1402                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1403                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1404                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1405                            trusted_worktrees.auto_trust_all(cx);
 1406                        })
 1407                    }
 1408                }
 1409            })
 1410            .detach();
 1411        }
 1412
 1413        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1414            match event {
 1415                project::Event::RemoteIdChanged(_) => {
 1416                    this.update_window_title(window, cx);
 1417                }
 1418
 1419                project::Event::CollaboratorLeft(peer_id) => {
 1420                    this.collaborator_left(*peer_id, window, cx);
 1421                }
 1422
 1423                &project::Event::WorktreeRemoved(_) => {
 1424                    this.update_window_title(window, cx);
 1425                    this.serialize_workspace(window, cx);
 1426                    this.update_history(cx);
 1427                }
 1428
 1429                &project::Event::WorktreeAdded(id) => {
 1430                    this.update_window_title(window, cx);
 1431                    if this
 1432                        .project()
 1433                        .read(cx)
 1434                        .worktree_for_id(id, cx)
 1435                        .is_some_and(|wt| wt.read(cx).is_visible())
 1436                    {
 1437                        this.serialize_workspace(window, cx);
 1438                        this.update_history(cx);
 1439                    }
 1440                }
 1441                project::Event::WorktreeUpdatedEntries(..) => {
 1442                    this.update_window_title(window, cx);
 1443                    this.serialize_workspace(window, cx);
 1444                }
 1445
 1446                project::Event::DisconnectedFromHost => {
 1447                    this.update_window_edited(window, cx);
 1448                    let leaders_to_unfollow =
 1449                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1450                    for leader_id in leaders_to_unfollow {
 1451                        this.unfollow(leader_id, window, cx);
 1452                    }
 1453                }
 1454
 1455                project::Event::DisconnectedFromRemote {
 1456                    server_not_running: _,
 1457                } => {
 1458                    this.update_window_edited(window, cx);
 1459                }
 1460
 1461                project::Event::Closed => {
 1462                    window.remove_window();
 1463                }
 1464
 1465                project::Event::DeletedEntry(_, entry_id) => {
 1466                    for pane in this.panes.iter() {
 1467                        pane.update(cx, |pane, cx| {
 1468                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1469                        });
 1470                    }
 1471                }
 1472
 1473                project::Event::Toast {
 1474                    notification_id,
 1475                    message,
 1476                    link,
 1477                } => this.show_notification(
 1478                    NotificationId::named(notification_id.clone()),
 1479                    cx,
 1480                    |cx| {
 1481                        let mut notification = MessageNotification::new(message.clone(), cx);
 1482                        if let Some(link) = link {
 1483                            notification = notification
 1484                                .more_info_message(link.label)
 1485                                .more_info_url(link.url);
 1486                        }
 1487
 1488                        cx.new(|_| notification)
 1489                    },
 1490                ),
 1491
 1492                project::Event::HideToast { notification_id } => {
 1493                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1494                }
 1495
 1496                project::Event::LanguageServerPrompt(request) => {
 1497                    struct LanguageServerPrompt;
 1498
 1499                    this.show_notification(
 1500                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1501                        cx,
 1502                        |cx| {
 1503                            cx.new(|cx| {
 1504                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1505                            })
 1506                        },
 1507                    );
 1508                }
 1509
 1510                project::Event::AgentLocationChanged => {
 1511                    this.handle_agent_location_changed(window, cx)
 1512                }
 1513
 1514                _ => {}
 1515            }
 1516            cx.notify()
 1517        })
 1518        .detach();
 1519
 1520        cx.subscribe_in(
 1521            &project.read(cx).breakpoint_store(),
 1522            window,
 1523            |workspace, _, event, window, cx| match event {
 1524                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1525                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1526                    workspace.serialize_workspace(window, cx);
 1527                }
 1528                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1529            },
 1530        )
 1531        .detach();
 1532        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1533            cx.subscribe_in(
 1534                &toolchain_store,
 1535                window,
 1536                |workspace, _, event, window, cx| match event {
 1537                    ToolchainStoreEvent::CustomToolchainsModified => {
 1538                        workspace.serialize_workspace(window, cx);
 1539                    }
 1540                    _ => {}
 1541                },
 1542            )
 1543            .detach();
 1544        }
 1545
 1546        cx.on_focus_lost(window, |this, window, cx| {
 1547            let focus_handle = this.focus_handle(cx);
 1548            window.focus(&focus_handle, cx);
 1549        })
 1550        .detach();
 1551
 1552        let weak_handle = cx.entity().downgrade();
 1553        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1554
 1555        let center_pane = cx.new(|cx| {
 1556            let mut center_pane = Pane::new(
 1557                weak_handle.clone(),
 1558                project.clone(),
 1559                pane_history_timestamp.clone(),
 1560                None,
 1561                NewFile.boxed_clone(),
 1562                true,
 1563                window,
 1564                cx,
 1565            );
 1566            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1567            center_pane.set_should_display_welcome_page(true);
 1568            center_pane
 1569        });
 1570        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1571            .detach();
 1572
 1573        window.focus(&center_pane.focus_handle(cx), cx);
 1574
 1575        cx.emit(Event::PaneAdded(center_pane.clone()));
 1576
 1577        let any_window_handle = window.window_handle();
 1578        app_state.workspace_store.update(cx, |store, _| {
 1579            store
 1580                .workspaces
 1581                .insert((any_window_handle, weak_handle.clone()));
 1582        });
 1583
 1584        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1585        let mut connection_status = app_state.client.status();
 1586        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1587            current_user.next().await;
 1588            connection_status.next().await;
 1589            let mut stream =
 1590                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1591
 1592            while stream.recv().await.is_some() {
 1593                this.update(cx, |_, cx| cx.notify())?;
 1594            }
 1595            anyhow::Ok(())
 1596        });
 1597
 1598        // All leader updates are enqueued and then processed in a single task, so
 1599        // that each asynchronous operation can be run in order.
 1600        let (leader_updates_tx, mut leader_updates_rx) =
 1601            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1602        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1603            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1604                Self::process_leader_update(&this, leader_id, update, cx)
 1605                    .await
 1606                    .log_err();
 1607            }
 1608
 1609            Ok(())
 1610        });
 1611
 1612        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1613        let modal_layer = cx.new(|_| ModalLayer::new());
 1614        let toast_layer = cx.new(|_| ToastLayer::new());
 1615        cx.subscribe(
 1616            &modal_layer,
 1617            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1618                cx.emit(Event::ModalOpened);
 1619            },
 1620        )
 1621        .detach();
 1622
 1623        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1624        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1625        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1626        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1627        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1628        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1629        let status_bar = cx.new(|cx| {
 1630            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1631            status_bar.add_left_item(left_dock_buttons, window, cx);
 1632            status_bar.add_right_item(right_dock_buttons, window, cx);
 1633            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1634            status_bar
 1635        });
 1636
 1637        let session_id = app_state.session.read(cx).id().to_owned();
 1638
 1639        let mut active_call = None;
 1640        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1641            let subscriptions =
 1642                vec![
 1643                    call.0
 1644                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1645                ];
 1646            active_call = Some((call, subscriptions));
 1647        }
 1648
 1649        let (serializable_items_tx, serializable_items_rx) =
 1650            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1651        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1652            Self::serialize_items(&this, serializable_items_rx, cx).await
 1653        });
 1654
 1655        let subscriptions = vec![
 1656            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1657            cx.observe_window_bounds(window, move |this, window, cx| {
 1658                if this.bounds_save_task_queued.is_some() {
 1659                    return;
 1660                }
 1661                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1662                    cx.background_executor()
 1663                        .timer(Duration::from_millis(100))
 1664                        .await;
 1665                    this.update_in(cx, |this, window, cx| {
 1666                        this.save_window_bounds(window, cx).detach();
 1667                        this.bounds_save_task_queued.take();
 1668                    })
 1669                    .ok();
 1670                }));
 1671                cx.notify();
 1672            }),
 1673            cx.observe_window_appearance(window, |_, window, cx| {
 1674                let window_appearance = window.appearance();
 1675
 1676                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1677
 1678                GlobalTheme::reload_theme(cx);
 1679                GlobalTheme::reload_icon_theme(cx);
 1680            }),
 1681            cx.on_release({
 1682                let weak_handle = weak_handle.clone();
 1683                move |this, cx| {
 1684                    this.app_state.workspace_store.update(cx, move |store, _| {
 1685                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1686                    })
 1687                }
 1688            }),
 1689        ];
 1690
 1691        cx.defer_in(window, move |this, window, cx| {
 1692            this.update_window_title(window, cx);
 1693            this.show_initial_notifications(cx);
 1694        });
 1695
 1696        let mut center = PaneGroup::new(center_pane.clone());
 1697        center.set_is_center(true);
 1698        center.mark_positions(cx);
 1699
 1700        Workspace {
 1701            weak_self: weak_handle.clone(),
 1702            zoomed: None,
 1703            zoomed_position: None,
 1704            previous_dock_drag_coordinates: None,
 1705            center,
 1706            panes: vec![center_pane.clone()],
 1707            panes_by_item: Default::default(),
 1708            active_pane: center_pane.clone(),
 1709            last_active_center_pane: Some(center_pane.downgrade()),
 1710            last_active_view_id: None,
 1711            status_bar,
 1712            modal_layer,
 1713            toast_layer,
 1714            titlebar_item: None,
 1715            active_worktree_override: None,
 1716            notifications: Notifications::default(),
 1717            suppressed_notifications: HashSet::default(),
 1718            left_dock,
 1719            bottom_dock,
 1720            right_dock,
 1721            _panels_task: None,
 1722            project: project.clone(),
 1723            follower_states: Default::default(),
 1724            last_leaders_by_pane: Default::default(),
 1725            dispatching_keystrokes: Default::default(),
 1726            window_edited: false,
 1727            last_window_title: None,
 1728            dirty_items: Default::default(),
 1729            active_call,
 1730            database_id: workspace_id,
 1731            app_state,
 1732            _observe_current_user,
 1733            _apply_leader_updates,
 1734            _schedule_serialize_workspace: None,
 1735            _serialize_workspace_task: None,
 1736            _schedule_serialize_ssh_paths: None,
 1737            leader_updates_tx,
 1738            _subscriptions: subscriptions,
 1739            pane_history_timestamp,
 1740            workspace_actions: Default::default(),
 1741            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1742            bounds: Default::default(),
 1743            centered_layout: false,
 1744            bounds_save_task_queued: None,
 1745            on_prompt_for_new_path: None,
 1746            on_prompt_for_open_path: None,
 1747            terminal_provider: None,
 1748            debugger_provider: None,
 1749            serializable_items_tx,
 1750            _items_serializer,
 1751            session_id: Some(session_id),
 1752
 1753            scheduled_tasks: Vec::new(),
 1754            last_open_dock_positions: Vec::new(),
 1755            removing: false,
 1756            sidebar_focus_handle: None,
 1757        }
 1758    }
 1759
 1760    pub fn new_local(
 1761        abs_paths: Vec<PathBuf>,
 1762        app_state: Arc<AppState>,
 1763        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1764        env: Option<HashMap<String, String>>,
 1765        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1766        activate: bool,
 1767        cx: &mut App,
 1768    ) -> Task<anyhow::Result<OpenResult>> {
 1769        let project_handle = Project::local(
 1770            app_state.client.clone(),
 1771            app_state.node_runtime.clone(),
 1772            app_state.user_store.clone(),
 1773            app_state.languages.clone(),
 1774            app_state.fs.clone(),
 1775            env,
 1776            Default::default(),
 1777            cx,
 1778        );
 1779
 1780        let db = WorkspaceDb::global(cx);
 1781        let kvp = db::kvp::KeyValueStore::global(cx);
 1782        cx.spawn(async move |cx| {
 1783            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1784            for path in abs_paths.into_iter() {
 1785                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1786                    paths_to_open.push(canonical)
 1787                } else {
 1788                    paths_to_open.push(path)
 1789                }
 1790            }
 1791
 1792            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1793
 1794            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1795                paths_to_open = paths.ordered_paths().cloned().collect();
 1796                if !paths.is_lexicographically_ordered() {
 1797                    project_handle.update(cx, |project, cx| {
 1798                        project.set_worktrees_reordered(true, cx);
 1799                    });
 1800                }
 1801            }
 1802
 1803            // Get project paths for all of the abs_paths
 1804            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1805                Vec::with_capacity(paths_to_open.len());
 1806
 1807            for path in paths_to_open.into_iter() {
 1808                if let Some((_, project_entry)) = cx
 1809                    .update(|cx| {
 1810                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1811                    })
 1812                    .await
 1813                    .log_err()
 1814                {
 1815                    project_paths.push((path, Some(project_entry)));
 1816                } else {
 1817                    project_paths.push((path, None));
 1818                }
 1819            }
 1820
 1821            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1822                serialized_workspace.id
 1823            } else {
 1824                db.next_id().await.unwrap_or_else(|_| Default::default())
 1825            };
 1826
 1827            let toolchains = db.toolchains(workspace_id).await?;
 1828
 1829            for (toolchain, worktree_path, path) in toolchains {
 1830                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1831                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1832                    this.find_worktree(&worktree_path, cx)
 1833                        .and_then(|(worktree, rel_path)| {
 1834                            if rel_path.is_empty() {
 1835                                Some(worktree.read(cx).id())
 1836                            } else {
 1837                                None
 1838                            }
 1839                        })
 1840                }) else {
 1841                    // We did not find a worktree with a given path, but that's whatever.
 1842                    continue;
 1843                };
 1844                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1845                    continue;
 1846                }
 1847
 1848                project_handle
 1849                    .update(cx, |this, cx| {
 1850                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1851                    })
 1852                    .await;
 1853            }
 1854            if let Some(workspace) = serialized_workspace.as_ref() {
 1855                project_handle.update(cx, |this, cx| {
 1856                    for (scope, toolchains) in &workspace.user_toolchains {
 1857                        for toolchain in toolchains {
 1858                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1859                        }
 1860                    }
 1861                });
 1862            }
 1863
 1864            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1865                if let Some(window) = requesting_window {
 1866                    let centered_layout = serialized_workspace
 1867                        .as_ref()
 1868                        .map(|w| w.centered_layout)
 1869                        .unwrap_or(false);
 1870
 1871                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1872                        let workspace = cx.new(|cx| {
 1873                            let mut workspace = Workspace::new(
 1874                                Some(workspace_id),
 1875                                project_handle.clone(),
 1876                                app_state.clone(),
 1877                                window,
 1878                                cx,
 1879                            );
 1880
 1881                            workspace.centered_layout = centered_layout;
 1882
 1883                            // Call init callback to add items before window renders
 1884                            if let Some(init) = init {
 1885                                init(&mut workspace, window, cx);
 1886                            }
 1887
 1888                            workspace
 1889                        });
 1890                        if activate {
 1891                            multi_workspace.activate(workspace.clone(), cx);
 1892                        } else {
 1893                            multi_workspace.add_workspace(workspace.clone(), cx);
 1894                        }
 1895                        workspace
 1896                    })?;
 1897                    (window, workspace)
 1898                } else {
 1899                    let window_bounds_override = window_bounds_env_override();
 1900
 1901                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1902                        (Some(WindowBounds::Windowed(bounds)), None)
 1903                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1904                        && let Some(display) = workspace.display
 1905                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1906                    {
 1907                        // Reopening an existing workspace - restore its saved bounds
 1908                        (Some(bounds.0), Some(display))
 1909                    } else if let Some((display, bounds)) =
 1910                        persistence::read_default_window_bounds(&kvp)
 1911                    {
 1912                        // New or empty workspace - use the last known window bounds
 1913                        (Some(bounds), Some(display))
 1914                    } else {
 1915                        // New window - let GPUI's default_bounds() handle cascading
 1916                        (None, None)
 1917                    };
 1918
 1919                    // Use the serialized workspace to construct the new window
 1920                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1921                    options.window_bounds = window_bounds;
 1922                    let centered_layout = serialized_workspace
 1923                        .as_ref()
 1924                        .map(|w| w.centered_layout)
 1925                        .unwrap_or(false);
 1926                    let window = cx.open_window(options, {
 1927                        let app_state = app_state.clone();
 1928                        let project_handle = project_handle.clone();
 1929                        move |window, cx| {
 1930                            let workspace = cx.new(|cx| {
 1931                                let mut workspace = Workspace::new(
 1932                                    Some(workspace_id),
 1933                                    project_handle,
 1934                                    app_state,
 1935                                    window,
 1936                                    cx,
 1937                                );
 1938                                workspace.centered_layout = centered_layout;
 1939
 1940                                // Call init callback to add items before window renders
 1941                                if let Some(init) = init {
 1942                                    init(&mut workspace, window, cx);
 1943                                }
 1944
 1945                                workspace
 1946                            });
 1947                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 1948                        }
 1949                    })?;
 1950                    let workspace =
 1951                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1952                            multi_workspace.workspace().clone()
 1953                        })?;
 1954                    (window, workspace)
 1955                };
 1956
 1957            notify_if_database_failed(window, cx);
 1958            // Check if this is an empty workspace (no paths to open)
 1959            // An empty workspace is one where project_paths is empty
 1960            let is_empty_workspace = project_paths.is_empty();
 1961            // Check if serialized workspace has paths before it's moved
 1962            let serialized_workspace_has_paths = serialized_workspace
 1963                .as_ref()
 1964                .map(|ws| !ws.paths.is_empty())
 1965                .unwrap_or(false);
 1966
 1967            let opened_items = window
 1968                .update(cx, |_, window, cx| {
 1969                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1970                        open_items(serialized_workspace, project_paths, window, cx)
 1971                    })
 1972                })?
 1973                .await
 1974                .unwrap_or_default();
 1975
 1976            // Restore default dock state for empty workspaces
 1977            // Only restore if:
 1978            // 1. This is an empty workspace (no paths), AND
 1979            // 2. The serialized workspace either doesn't exist or has no paths
 1980            if is_empty_workspace && !serialized_workspace_has_paths {
 1981                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 1982                    window
 1983                        .update(cx, |_, window, cx| {
 1984                            workspace.update(cx, |workspace, cx| {
 1985                                for (dock, serialized_dock) in [
 1986                                    (&workspace.right_dock, &default_docks.right),
 1987                                    (&workspace.left_dock, &default_docks.left),
 1988                                    (&workspace.bottom_dock, &default_docks.bottom),
 1989                                ] {
 1990                                    dock.update(cx, |dock, cx| {
 1991                                        dock.serialized_dock = Some(serialized_dock.clone());
 1992                                        dock.restore_state(window, cx);
 1993                                    });
 1994                                }
 1995                                cx.notify();
 1996                            });
 1997                        })
 1998                        .log_err();
 1999                }
 2000            }
 2001
 2002            window
 2003                .update(cx, |_, _window, cx| {
 2004                    workspace.update(cx, |this: &mut Workspace, cx| {
 2005                        this.update_history(cx);
 2006                    });
 2007                })
 2008                .log_err();
 2009            Ok(OpenResult {
 2010                window,
 2011                workspace,
 2012                opened_items,
 2013            })
 2014        })
 2015    }
 2016
 2017    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2018        self.weak_self.clone()
 2019    }
 2020
 2021    pub fn left_dock(&self) -> &Entity<Dock> {
 2022        &self.left_dock
 2023    }
 2024
 2025    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2026        &self.bottom_dock
 2027    }
 2028
 2029    pub fn set_bottom_dock_layout(
 2030        &mut self,
 2031        layout: BottomDockLayout,
 2032        window: &mut Window,
 2033        cx: &mut Context<Self>,
 2034    ) {
 2035        let fs = self.project().read(cx).fs();
 2036        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2037            content.workspace.bottom_dock_layout = Some(layout);
 2038        });
 2039
 2040        cx.notify();
 2041        self.serialize_workspace(window, cx);
 2042    }
 2043
 2044    pub fn right_dock(&self) -> &Entity<Dock> {
 2045        &self.right_dock
 2046    }
 2047
 2048    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2049        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2050    }
 2051
 2052    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2053        let left_dock = self.left_dock.read(cx);
 2054        let left_visible = left_dock.is_open();
 2055        let left_active_panel = left_dock
 2056            .active_panel()
 2057            .map(|panel| panel.persistent_name().to_string());
 2058        // `zoomed_position` is kept in sync with individual panel zoom state
 2059        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2060        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2061
 2062        let right_dock = self.right_dock.read(cx);
 2063        let right_visible = right_dock.is_open();
 2064        let right_active_panel = right_dock
 2065            .active_panel()
 2066            .map(|panel| panel.persistent_name().to_string());
 2067        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2068
 2069        let bottom_dock = self.bottom_dock.read(cx);
 2070        let bottom_visible = bottom_dock.is_open();
 2071        let bottom_active_panel = bottom_dock
 2072            .active_panel()
 2073            .map(|panel| panel.persistent_name().to_string());
 2074        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2075
 2076        DockStructure {
 2077            left: DockData {
 2078                visible: left_visible,
 2079                active_panel: left_active_panel,
 2080                zoom: left_dock_zoom,
 2081            },
 2082            right: DockData {
 2083                visible: right_visible,
 2084                active_panel: right_active_panel,
 2085                zoom: right_dock_zoom,
 2086            },
 2087            bottom: DockData {
 2088                visible: bottom_visible,
 2089                active_panel: bottom_active_panel,
 2090                zoom: bottom_dock_zoom,
 2091            },
 2092        }
 2093    }
 2094
 2095    pub fn set_dock_structure(
 2096        &self,
 2097        docks: DockStructure,
 2098        window: &mut Window,
 2099        cx: &mut Context<Self>,
 2100    ) {
 2101        for (dock, data) in [
 2102            (&self.left_dock, docks.left),
 2103            (&self.bottom_dock, docks.bottom),
 2104            (&self.right_dock, docks.right),
 2105        ] {
 2106            dock.update(cx, |dock, cx| {
 2107                dock.serialized_dock = Some(data);
 2108                dock.restore_state(window, cx);
 2109            });
 2110        }
 2111    }
 2112
 2113    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2114        self.items(cx)
 2115            .filter_map(|item| {
 2116                let project_path = item.project_path(cx)?;
 2117                self.project.read(cx).absolute_path(&project_path, cx)
 2118            })
 2119            .collect()
 2120    }
 2121
 2122    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2123        match position {
 2124            DockPosition::Left => &self.left_dock,
 2125            DockPosition::Bottom => &self.bottom_dock,
 2126            DockPosition::Right => &self.right_dock,
 2127        }
 2128    }
 2129
 2130    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2131        self.all_docks().into_iter().find_map(|dock| {
 2132            let dock = dock.read(cx);
 2133            let panel = dock.panel::<T>()?;
 2134            dock.stored_panel_size_state(&panel)
 2135        })
 2136    }
 2137
 2138    pub fn persisted_panel_size_state(
 2139        &self,
 2140        panel_key: &'static str,
 2141        cx: &App,
 2142    ) -> Option<dock::PanelSizeState> {
 2143        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2144    }
 2145
 2146    pub fn persist_panel_size_state(
 2147        &self,
 2148        panel_key: &str,
 2149        size_state: dock::PanelSizeState,
 2150        cx: &mut App,
 2151    ) {
 2152        let Some(workspace_id) = self
 2153            .database_id()
 2154            .map(|id| i64::from(id).to_string())
 2155            .or(self.session_id())
 2156        else {
 2157            return;
 2158        };
 2159
 2160        let kvp = db::kvp::KeyValueStore::global(cx);
 2161        let panel_key = panel_key.to_string();
 2162        cx.background_spawn(async move {
 2163            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2164            scope
 2165                .write(
 2166                    format!("{workspace_id}:{panel_key}"),
 2167                    serde_json::to_string(&size_state)?,
 2168                )
 2169                .await
 2170        })
 2171        .detach_and_log_err(cx);
 2172    }
 2173
 2174    pub fn set_panel_size_state<T: Panel>(
 2175        &mut self,
 2176        size_state: dock::PanelSizeState,
 2177        window: &mut Window,
 2178        cx: &mut Context<Self>,
 2179    ) -> bool {
 2180        let Some(panel) = self.panel::<T>(cx) else {
 2181            return false;
 2182        };
 2183
 2184        let dock = self.dock_at_position(panel.position(window, cx));
 2185        let did_set = dock.update(cx, |dock, cx| {
 2186            dock.set_panel_size_state(&panel, size_state, cx)
 2187        });
 2188
 2189        if did_set {
 2190            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2191        }
 2192
 2193        did_set
 2194    }
 2195
 2196    pub fn toggle_dock_panel_flexible_size(
 2197        &self,
 2198        dock: &Entity<Dock>,
 2199        panel: &dyn PanelHandle,
 2200        window: &mut Window,
 2201        cx: &mut App,
 2202    ) {
 2203        let position = dock.read(cx).position();
 2204        let current_size = self.dock_size(&dock.read(cx), window, cx);
 2205        let current_flex =
 2206            current_size.and_then(|size| self.dock_flex_for_size(position, size, window, cx));
 2207        dock.update(cx, |dock, cx| {
 2208            dock.toggle_panel_flexible_size(panel, current_size, current_flex, window, cx);
 2209        });
 2210    }
 2211
 2212    fn dock_size(&self, dock: &Dock, window: &Window, cx: &App) -> Option<Pixels> {
 2213        let panel = dock.active_panel()?;
 2214        let size_state = dock
 2215            .stored_panel_size_state(panel.as_ref())
 2216            .unwrap_or_default();
 2217        let position = dock.position();
 2218
 2219        let use_flex = panel.has_flexible_size(window, cx);
 2220
 2221        if position.axis() == Axis::Horizontal
 2222            && use_flex
 2223            && let Some(flex) = size_state.flex.or_else(|| self.default_dock_flex(position))
 2224        {
 2225            let workspace_width = self.bounds.size.width;
 2226            if workspace_width <= Pixels::ZERO {
 2227                return None;
 2228            }
 2229            let flex = flex.max(0.001);
 2230            let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2231            if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2232                // Both docks are flex items sharing the full workspace width.
 2233                let total_flex = flex + 1.0 + opposite_flex;
 2234                return Some((flex / total_flex * workspace_width).max(RESIZE_HANDLE_SIZE));
 2235            } else {
 2236                // Opposite dock is fixed-width; flex items share (W - fixed).
 2237                let opposite_fixed = opposite
 2238                    .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2239                    .unwrap_or_default();
 2240                let available = (workspace_width - opposite_fixed).max(RESIZE_HANDLE_SIZE);
 2241                return Some((flex / (flex + 1.0) * available).max(RESIZE_HANDLE_SIZE));
 2242            }
 2243        }
 2244
 2245        Some(
 2246            size_state
 2247                .size
 2248                .unwrap_or_else(|| panel.default_size(window, cx)),
 2249        )
 2250    }
 2251
 2252    pub fn dock_flex_for_size(
 2253        &self,
 2254        position: DockPosition,
 2255        size: Pixels,
 2256        window: &Window,
 2257        cx: &App,
 2258    ) -> Option<f32> {
 2259        if position.axis() != Axis::Horizontal {
 2260            return None;
 2261        }
 2262
 2263        let workspace_width = self.bounds.size.width;
 2264        if workspace_width <= Pixels::ZERO {
 2265            return None;
 2266        }
 2267
 2268        let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2269        if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2270            let size = size.clamp(px(0.), workspace_width - px(1.));
 2271            Some((size * (1.0 + opposite_flex) / (workspace_width - size)).max(0.0))
 2272        } else {
 2273            let opposite_width = opposite
 2274                .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2275                .unwrap_or_default();
 2276            let available = (workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE);
 2277            let remaining = (available - size).max(px(1.));
 2278            Some((size / remaining).max(0.0))
 2279        }
 2280    }
 2281
 2282    fn opposite_dock_panel_and_size_state(
 2283        &self,
 2284        position: DockPosition,
 2285        window: &Window,
 2286        cx: &App,
 2287    ) -> Option<(Arc<dyn PanelHandle>, PanelSizeState)> {
 2288        let opposite_position = match position {
 2289            DockPosition::Left => DockPosition::Right,
 2290            DockPosition::Right => DockPosition::Left,
 2291            DockPosition::Bottom => return None,
 2292        };
 2293
 2294        let opposite_dock = self.dock_at_position(opposite_position).read(cx);
 2295        let panel = opposite_dock.visible_panel()?;
 2296        let mut size_state = opposite_dock
 2297            .stored_panel_size_state(panel.as_ref())
 2298            .unwrap_or_default();
 2299        if size_state.flex.is_none() && panel.has_flexible_size(window, cx) {
 2300            size_state.flex = self.default_dock_flex(opposite_position);
 2301        }
 2302        Some((panel.clone(), size_state))
 2303    }
 2304
 2305    pub fn default_dock_flex(&self, position: DockPosition) -> Option<f32> {
 2306        if position.axis() != Axis::Horizontal {
 2307            return None;
 2308        }
 2309
 2310        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2311        Some(self.center.width_fraction_for_pane(&pane).unwrap_or(1.0))
 2312    }
 2313
 2314    pub fn is_edited(&self) -> bool {
 2315        self.window_edited
 2316    }
 2317
 2318    pub fn add_panel<T: Panel>(
 2319        &mut self,
 2320        panel: Entity<T>,
 2321        window: &mut Window,
 2322        cx: &mut Context<Self>,
 2323    ) {
 2324        let focus_handle = panel.panel_focus_handle(cx);
 2325        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2326            .detach();
 2327
 2328        let dock_position = panel.position(window, cx);
 2329        let dock = self.dock_at_position(dock_position);
 2330        let any_panel = panel.to_any();
 2331        let persisted_size_state =
 2332            self.persisted_panel_size_state(T::panel_key(), cx)
 2333                .or_else(|| {
 2334                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2335                        let state = dock::PanelSizeState {
 2336                            size: Some(size),
 2337                            flex: None,
 2338                        };
 2339                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2340                        state
 2341                    })
 2342                });
 2343
 2344        dock.update(cx, |dock, cx| {
 2345            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2346            if let Some(size_state) = persisted_size_state {
 2347                dock.set_panel_size_state(&panel, size_state, cx);
 2348            }
 2349            index
 2350        });
 2351
 2352        cx.emit(Event::PanelAdded(any_panel));
 2353    }
 2354
 2355    pub fn remove_panel<T: Panel>(
 2356        &mut self,
 2357        panel: &Entity<T>,
 2358        window: &mut Window,
 2359        cx: &mut Context<Self>,
 2360    ) {
 2361        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2362            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2363        }
 2364    }
 2365
 2366    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2367        &self.status_bar
 2368    }
 2369
 2370    pub fn set_workspace_sidebar_open(
 2371        &self,
 2372        open: bool,
 2373        has_notifications: bool,
 2374        show_toggle: bool,
 2375        cx: &mut App,
 2376    ) {
 2377        self.status_bar.update(cx, |status_bar, cx| {
 2378            status_bar.set_workspace_sidebar_open(open, cx);
 2379            status_bar.set_sidebar_has_notifications(has_notifications, cx);
 2380            status_bar.set_show_sidebar_toggle(show_toggle, cx);
 2381        });
 2382    }
 2383
 2384    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2385        self.sidebar_focus_handle = handle;
 2386    }
 2387
 2388    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2389        StatusBarSettings::get_global(cx).show
 2390    }
 2391
 2392    pub fn app_state(&self) -> &Arc<AppState> {
 2393        &self.app_state
 2394    }
 2395
 2396    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2397        self._panels_task = Some(task);
 2398    }
 2399
 2400    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2401        self._panels_task.take()
 2402    }
 2403
 2404    pub fn user_store(&self) -> &Entity<UserStore> {
 2405        &self.app_state.user_store
 2406    }
 2407
 2408    pub fn project(&self) -> &Entity<Project> {
 2409        &self.project
 2410    }
 2411
 2412    pub fn path_style(&self, cx: &App) -> PathStyle {
 2413        self.project.read(cx).path_style(cx)
 2414    }
 2415
 2416    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2417        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2418
 2419        for pane_handle in &self.panes {
 2420            let pane = pane_handle.read(cx);
 2421
 2422            for entry in pane.activation_history() {
 2423                history.insert(
 2424                    entry.entity_id,
 2425                    history
 2426                        .get(&entry.entity_id)
 2427                        .cloned()
 2428                        .unwrap_or(0)
 2429                        .max(entry.timestamp),
 2430                );
 2431            }
 2432        }
 2433
 2434        history
 2435    }
 2436
 2437    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2438        let mut recent_item: Option<Entity<T>> = None;
 2439        let mut recent_timestamp = 0;
 2440        for pane_handle in &self.panes {
 2441            let pane = pane_handle.read(cx);
 2442            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2443                pane.items().map(|item| (item.item_id(), item)).collect();
 2444            for entry in pane.activation_history() {
 2445                if entry.timestamp > recent_timestamp
 2446                    && let Some(&item) = item_map.get(&entry.entity_id)
 2447                    && let Some(typed_item) = item.act_as::<T>(cx)
 2448                {
 2449                    recent_timestamp = entry.timestamp;
 2450                    recent_item = Some(typed_item);
 2451                }
 2452            }
 2453        }
 2454        recent_item
 2455    }
 2456
 2457    pub fn recent_navigation_history_iter(
 2458        &self,
 2459        cx: &App,
 2460    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2461        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2462        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2463
 2464        for pane in &self.panes {
 2465            let pane = pane.read(cx);
 2466
 2467            pane.nav_history()
 2468                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2469                    if let Some(fs_path) = &fs_path {
 2470                        abs_paths_opened
 2471                            .entry(fs_path.clone())
 2472                            .or_default()
 2473                            .insert(project_path.clone());
 2474                    }
 2475                    let timestamp = entry.timestamp;
 2476                    match history.entry(project_path) {
 2477                        hash_map::Entry::Occupied(mut entry) => {
 2478                            let (_, old_timestamp) = entry.get();
 2479                            if &timestamp > old_timestamp {
 2480                                entry.insert((fs_path, timestamp));
 2481                            }
 2482                        }
 2483                        hash_map::Entry::Vacant(entry) => {
 2484                            entry.insert((fs_path, timestamp));
 2485                        }
 2486                    }
 2487                });
 2488
 2489            if let Some(item) = pane.active_item()
 2490                && let Some(project_path) = item.project_path(cx)
 2491            {
 2492                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2493
 2494                if let Some(fs_path) = &fs_path {
 2495                    abs_paths_opened
 2496                        .entry(fs_path.clone())
 2497                        .or_default()
 2498                        .insert(project_path.clone());
 2499                }
 2500
 2501                history.insert(project_path, (fs_path, std::usize::MAX));
 2502            }
 2503        }
 2504
 2505        history
 2506            .into_iter()
 2507            .sorted_by_key(|(_, (_, order))| *order)
 2508            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2509            .rev()
 2510            .filter(move |(history_path, abs_path)| {
 2511                let latest_project_path_opened = abs_path
 2512                    .as_ref()
 2513                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2514                    .and_then(|project_paths| {
 2515                        project_paths
 2516                            .iter()
 2517                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2518                    });
 2519
 2520                latest_project_path_opened.is_none_or(|path| path == history_path)
 2521            })
 2522    }
 2523
 2524    pub fn recent_navigation_history(
 2525        &self,
 2526        limit: Option<usize>,
 2527        cx: &App,
 2528    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2529        self.recent_navigation_history_iter(cx)
 2530            .take(limit.unwrap_or(usize::MAX))
 2531            .collect()
 2532    }
 2533
 2534    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2535        for pane in &self.panes {
 2536            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2537        }
 2538    }
 2539
 2540    fn navigate_history(
 2541        &mut self,
 2542        pane: WeakEntity<Pane>,
 2543        mode: NavigationMode,
 2544        window: &mut Window,
 2545        cx: &mut Context<Workspace>,
 2546    ) -> Task<Result<()>> {
 2547        self.navigate_history_impl(
 2548            pane,
 2549            mode,
 2550            window,
 2551            &mut |history, cx| history.pop(mode, cx),
 2552            cx,
 2553        )
 2554    }
 2555
 2556    fn navigate_tag_history(
 2557        &mut self,
 2558        pane: WeakEntity<Pane>,
 2559        mode: TagNavigationMode,
 2560        window: &mut Window,
 2561        cx: &mut Context<Workspace>,
 2562    ) -> Task<Result<()>> {
 2563        self.navigate_history_impl(
 2564            pane,
 2565            NavigationMode::Normal,
 2566            window,
 2567            &mut |history, _cx| history.pop_tag(mode),
 2568            cx,
 2569        )
 2570    }
 2571
 2572    fn navigate_history_impl(
 2573        &mut self,
 2574        pane: WeakEntity<Pane>,
 2575        mode: NavigationMode,
 2576        window: &mut Window,
 2577        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2578        cx: &mut Context<Workspace>,
 2579    ) -> Task<Result<()>> {
 2580        let to_load = if let Some(pane) = pane.upgrade() {
 2581            pane.update(cx, |pane, cx| {
 2582                window.focus(&pane.focus_handle(cx), cx);
 2583                loop {
 2584                    // Retrieve the weak item handle from the history.
 2585                    let entry = cb(pane.nav_history_mut(), cx)?;
 2586
 2587                    // If the item is still present in this pane, then activate it.
 2588                    if let Some(index) = entry
 2589                        .item
 2590                        .upgrade()
 2591                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2592                    {
 2593                        let prev_active_item_index = pane.active_item_index();
 2594                        pane.nav_history_mut().set_mode(mode);
 2595                        pane.activate_item(index, true, true, window, cx);
 2596                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2597
 2598                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2599                        if let Some(data) = entry.data {
 2600                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2601                        }
 2602
 2603                        if navigated {
 2604                            break None;
 2605                        }
 2606                    } else {
 2607                        // If the item is no longer present in this pane, then retrieve its
 2608                        // path info in order to reopen it.
 2609                        break pane
 2610                            .nav_history()
 2611                            .path_for_item(entry.item.id())
 2612                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2613                    }
 2614                }
 2615            })
 2616        } else {
 2617            None
 2618        };
 2619
 2620        if let Some((project_path, abs_path, entry)) = to_load {
 2621            // If the item was no longer present, then load it again from its previous path, first try the local path
 2622            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2623
 2624            cx.spawn_in(window, async move  |workspace, cx| {
 2625                let open_by_project_path = open_by_project_path.await;
 2626                let mut navigated = false;
 2627                match open_by_project_path
 2628                    .with_context(|| format!("Navigating to {project_path:?}"))
 2629                {
 2630                    Ok((project_entry_id, build_item)) => {
 2631                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2632                            pane.nav_history_mut().set_mode(mode);
 2633                            pane.active_item().map(|p| p.item_id())
 2634                        })?;
 2635
 2636                        pane.update_in(cx, |pane, window, cx| {
 2637                            let item = pane.open_item(
 2638                                project_entry_id,
 2639                                project_path,
 2640                                true,
 2641                                entry.is_preview,
 2642                                true,
 2643                                None,
 2644                                window, cx,
 2645                                build_item,
 2646                            );
 2647                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2648                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2649                            if let Some(data) = entry.data {
 2650                                navigated |= item.navigate(data, window, cx);
 2651                            }
 2652                        })?;
 2653                    }
 2654                    Err(open_by_project_path_e) => {
 2655                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2656                        // and its worktree is now dropped
 2657                        if let Some(abs_path) = abs_path {
 2658                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2659                                pane.nav_history_mut().set_mode(mode);
 2660                                pane.active_item().map(|p| p.item_id())
 2661                            })?;
 2662                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2663                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2664                            })?;
 2665                            match open_by_abs_path
 2666                                .await
 2667                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2668                            {
 2669                                Ok(item) => {
 2670                                    pane.update_in(cx, |pane, window, cx| {
 2671                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2672                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2673                                        if let Some(data) = entry.data {
 2674                                            navigated |= item.navigate(data, window, cx);
 2675                                        }
 2676                                    })?;
 2677                                }
 2678                                Err(open_by_abs_path_e) => {
 2679                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2680                                }
 2681                            }
 2682                        }
 2683                    }
 2684                }
 2685
 2686                if !navigated {
 2687                    workspace
 2688                        .update_in(cx, |workspace, window, cx| {
 2689                            Self::navigate_history(workspace, pane, mode, window, cx)
 2690                        })?
 2691                        .await?;
 2692                }
 2693
 2694                Ok(())
 2695            })
 2696        } else {
 2697            Task::ready(Ok(()))
 2698        }
 2699    }
 2700
 2701    pub fn go_back(
 2702        &mut self,
 2703        pane: WeakEntity<Pane>,
 2704        window: &mut Window,
 2705        cx: &mut Context<Workspace>,
 2706    ) -> Task<Result<()>> {
 2707        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2708    }
 2709
 2710    pub fn go_forward(
 2711        &mut self,
 2712        pane: WeakEntity<Pane>,
 2713        window: &mut Window,
 2714        cx: &mut Context<Workspace>,
 2715    ) -> Task<Result<()>> {
 2716        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2717    }
 2718
 2719    pub fn reopen_closed_item(
 2720        &mut self,
 2721        window: &mut Window,
 2722        cx: &mut Context<Workspace>,
 2723    ) -> Task<Result<()>> {
 2724        self.navigate_history(
 2725            self.active_pane().downgrade(),
 2726            NavigationMode::ReopeningClosedItem,
 2727            window,
 2728            cx,
 2729        )
 2730    }
 2731
 2732    pub fn client(&self) -> &Arc<Client> {
 2733        &self.app_state.client
 2734    }
 2735
 2736    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2737        self.titlebar_item = Some(item);
 2738        cx.notify();
 2739    }
 2740
 2741    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2742        self.on_prompt_for_new_path = Some(prompt)
 2743    }
 2744
 2745    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2746        self.on_prompt_for_open_path = Some(prompt)
 2747    }
 2748
 2749    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2750        self.terminal_provider = Some(Box::new(provider));
 2751    }
 2752
 2753    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2754        self.debugger_provider = Some(Arc::new(provider));
 2755    }
 2756
 2757    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2758        self.debugger_provider.clone()
 2759    }
 2760
 2761    pub fn prompt_for_open_path(
 2762        &mut self,
 2763        path_prompt_options: PathPromptOptions,
 2764        lister: DirectoryLister,
 2765        window: &mut Window,
 2766        cx: &mut Context<Self>,
 2767    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2768        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2769            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2770            let rx = prompt(self, lister, window, cx);
 2771            self.on_prompt_for_open_path = Some(prompt);
 2772            rx
 2773        } else {
 2774            let (tx, rx) = oneshot::channel();
 2775            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2776
 2777            cx.spawn_in(window, async move |workspace, cx| {
 2778                let Ok(result) = abs_path.await else {
 2779                    return Ok(());
 2780                };
 2781
 2782                match result {
 2783                    Ok(result) => {
 2784                        tx.send(result).ok();
 2785                    }
 2786                    Err(err) => {
 2787                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2788                            workspace.show_portal_error(err.to_string(), cx);
 2789                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2790                            let rx = prompt(workspace, lister, window, cx);
 2791                            workspace.on_prompt_for_open_path = Some(prompt);
 2792                            rx
 2793                        })?;
 2794                        if let Ok(path) = rx.await {
 2795                            tx.send(path).ok();
 2796                        }
 2797                    }
 2798                };
 2799                anyhow::Ok(())
 2800            })
 2801            .detach();
 2802
 2803            rx
 2804        }
 2805    }
 2806
 2807    pub fn prompt_for_new_path(
 2808        &mut self,
 2809        lister: DirectoryLister,
 2810        suggested_name: Option<String>,
 2811        window: &mut Window,
 2812        cx: &mut Context<Self>,
 2813    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2814        if self.project.read(cx).is_via_collab()
 2815            || self.project.read(cx).is_via_remote_server()
 2816            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2817        {
 2818            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2819            let rx = prompt(self, lister, suggested_name, window, cx);
 2820            self.on_prompt_for_new_path = Some(prompt);
 2821            return rx;
 2822        }
 2823
 2824        let (tx, rx) = oneshot::channel();
 2825        cx.spawn_in(window, async move |workspace, cx| {
 2826            let abs_path = workspace.update(cx, |workspace, cx| {
 2827                let relative_to = workspace
 2828                    .most_recent_active_path(cx)
 2829                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2830                    .or_else(|| {
 2831                        let project = workspace.project.read(cx);
 2832                        project.visible_worktrees(cx).find_map(|worktree| {
 2833                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2834                        })
 2835                    })
 2836                    .or_else(std::env::home_dir)
 2837                    .unwrap_or_else(|| PathBuf::from(""));
 2838                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2839            })?;
 2840            let abs_path = match abs_path.await? {
 2841                Ok(path) => path,
 2842                Err(err) => {
 2843                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2844                        workspace.show_portal_error(err.to_string(), cx);
 2845
 2846                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2847                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2848                        workspace.on_prompt_for_new_path = Some(prompt);
 2849                        rx
 2850                    })?;
 2851                    if let Ok(path) = rx.await {
 2852                        tx.send(path).ok();
 2853                    }
 2854                    return anyhow::Ok(());
 2855                }
 2856            };
 2857
 2858            tx.send(abs_path.map(|path| vec![path])).ok();
 2859            anyhow::Ok(())
 2860        })
 2861        .detach();
 2862
 2863        rx
 2864    }
 2865
 2866    pub fn titlebar_item(&self) -> Option<AnyView> {
 2867        self.titlebar_item.clone()
 2868    }
 2869
 2870    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2871    /// When set, git-related operations should use this worktree instead of deriving
 2872    /// the active worktree from the focused file.
 2873    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2874        self.active_worktree_override
 2875    }
 2876
 2877    pub fn set_active_worktree_override(
 2878        &mut self,
 2879        worktree_id: Option<WorktreeId>,
 2880        cx: &mut Context<Self>,
 2881    ) {
 2882        self.active_worktree_override = worktree_id;
 2883        cx.notify();
 2884    }
 2885
 2886    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2887        self.active_worktree_override = None;
 2888        cx.notify();
 2889    }
 2890
 2891    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2892    ///
 2893    /// If the given workspace has a local project, then it will be passed
 2894    /// to the callback. Otherwise, a new empty window will be created.
 2895    pub fn with_local_workspace<T, F>(
 2896        &mut self,
 2897        window: &mut Window,
 2898        cx: &mut Context<Self>,
 2899        callback: F,
 2900    ) -> Task<Result<T>>
 2901    where
 2902        T: 'static,
 2903        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2904    {
 2905        if self.project.read(cx).is_local() {
 2906            Task::ready(Ok(callback(self, window, cx)))
 2907        } else {
 2908            let env = self.project.read(cx).cli_environment(cx);
 2909            let task = Self::new_local(
 2910                Vec::new(),
 2911                self.app_state.clone(),
 2912                None,
 2913                env,
 2914                None,
 2915                true,
 2916                cx,
 2917            );
 2918            cx.spawn_in(window, async move |_vh, cx| {
 2919                let OpenResult {
 2920                    window: multi_workspace_window,
 2921                    ..
 2922                } = task.await?;
 2923                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2924                    let workspace = multi_workspace.workspace().clone();
 2925                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2926                })
 2927            })
 2928        }
 2929    }
 2930
 2931    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2932    ///
 2933    /// If the given workspace has a local project, then it will be passed
 2934    /// to the callback. Otherwise, a new empty window will be created.
 2935    pub fn with_local_or_wsl_workspace<T, F>(
 2936        &mut self,
 2937        window: &mut Window,
 2938        cx: &mut Context<Self>,
 2939        callback: F,
 2940    ) -> Task<Result<T>>
 2941    where
 2942        T: 'static,
 2943        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2944    {
 2945        let project = self.project.read(cx);
 2946        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2947            Task::ready(Ok(callback(self, window, cx)))
 2948        } else {
 2949            let env = self.project.read(cx).cli_environment(cx);
 2950            let task = Self::new_local(
 2951                Vec::new(),
 2952                self.app_state.clone(),
 2953                None,
 2954                env,
 2955                None,
 2956                true,
 2957                cx,
 2958            );
 2959            cx.spawn_in(window, async move |_vh, cx| {
 2960                let OpenResult {
 2961                    window: multi_workspace_window,
 2962                    ..
 2963                } = task.await?;
 2964                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2965                    let workspace = multi_workspace.workspace().clone();
 2966                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2967                })
 2968            })
 2969        }
 2970    }
 2971
 2972    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2973        self.project.read(cx).worktrees(cx)
 2974    }
 2975
 2976    pub fn visible_worktrees<'a>(
 2977        &self,
 2978        cx: &'a App,
 2979    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2980        self.project.read(cx).visible_worktrees(cx)
 2981    }
 2982
 2983    #[cfg(any(test, feature = "test-support"))]
 2984    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2985        let futures = self
 2986            .worktrees(cx)
 2987            .filter_map(|worktree| worktree.read(cx).as_local())
 2988            .map(|worktree| worktree.scan_complete())
 2989            .collect::<Vec<_>>();
 2990        async move {
 2991            for future in futures {
 2992                future.await;
 2993            }
 2994        }
 2995    }
 2996
 2997    pub fn close_global(cx: &mut App) {
 2998        cx.defer(|cx| {
 2999            cx.windows().iter().find(|window| {
 3000                window
 3001                    .update(cx, |_, window, _| {
 3002                        if window.is_window_active() {
 3003                            //This can only get called when the window's project connection has been lost
 3004                            //so we don't need to prompt the user for anything and instead just close the window
 3005                            window.remove_window();
 3006                            true
 3007                        } else {
 3008                            false
 3009                        }
 3010                    })
 3011                    .unwrap_or(false)
 3012            });
 3013        });
 3014    }
 3015
 3016    pub fn move_focused_panel_to_next_position(
 3017        &mut self,
 3018        _: &MoveFocusedPanelToNextPosition,
 3019        window: &mut Window,
 3020        cx: &mut Context<Self>,
 3021    ) {
 3022        let docks = self.all_docks();
 3023        let active_dock = docks
 3024            .into_iter()
 3025            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3026
 3027        if let Some(dock) = active_dock {
 3028            dock.update(cx, |dock, cx| {
 3029                let active_panel = dock
 3030                    .active_panel()
 3031                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3032
 3033                if let Some(panel) = active_panel {
 3034                    panel.move_to_next_position(window, cx);
 3035                }
 3036            })
 3037        }
 3038    }
 3039
 3040    pub fn prepare_to_close(
 3041        &mut self,
 3042        close_intent: CloseIntent,
 3043        window: &mut Window,
 3044        cx: &mut Context<Self>,
 3045    ) -> Task<Result<bool>> {
 3046        let active_call = self.active_global_call();
 3047
 3048        cx.spawn_in(window, async move |this, cx| {
 3049            this.update(cx, |this, _| {
 3050                if close_intent == CloseIntent::CloseWindow {
 3051                    this.removing = true;
 3052                }
 3053            })?;
 3054
 3055            let workspace_count = cx.update(|_window, cx| {
 3056                cx.windows()
 3057                    .iter()
 3058                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3059                    .count()
 3060            })?;
 3061
 3062            #[cfg(target_os = "macos")]
 3063            let save_last_workspace = false;
 3064
 3065            // On Linux and Windows, closing the last window should restore the last workspace.
 3066            #[cfg(not(target_os = "macos"))]
 3067            let save_last_workspace = {
 3068                let remaining_workspaces = cx.update(|_window, cx| {
 3069                    cx.windows()
 3070                        .iter()
 3071                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3072                        .filter_map(|multi_workspace| {
 3073                            multi_workspace
 3074                                .update(cx, |multi_workspace, _, cx| {
 3075                                    multi_workspace.workspace().read(cx).removing
 3076                                })
 3077                                .ok()
 3078                        })
 3079                        .filter(|removing| !removing)
 3080                        .count()
 3081                })?;
 3082
 3083                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3084            };
 3085
 3086            if let Some(active_call) = active_call
 3087                && workspace_count == 1
 3088                && cx
 3089                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3090                    .unwrap_or(false)
 3091            {
 3092                if close_intent == CloseIntent::CloseWindow {
 3093                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3094                    let answer = cx.update(|window, cx| {
 3095                        window.prompt(
 3096                            PromptLevel::Warning,
 3097                            "Do you want to leave the current call?",
 3098                            None,
 3099                            &["Close window and hang up", "Cancel"],
 3100                            cx,
 3101                        )
 3102                    })?;
 3103
 3104                    if answer.await.log_err() == Some(1) {
 3105                        return anyhow::Ok(false);
 3106                    } else {
 3107                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3108                            task.await.log_err();
 3109                        }
 3110                    }
 3111                }
 3112                if close_intent == CloseIntent::ReplaceWindow {
 3113                    _ = cx.update(|_window, cx| {
 3114                        let multi_workspace = cx
 3115                            .windows()
 3116                            .iter()
 3117                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3118                            .next()
 3119                            .unwrap();
 3120                        let project = multi_workspace
 3121                            .read(cx)?
 3122                            .workspace()
 3123                            .read(cx)
 3124                            .project
 3125                            .clone();
 3126                        if project.read(cx).is_shared() {
 3127                            active_call.0.unshare_project(project, cx)?;
 3128                        }
 3129                        Ok::<_, anyhow::Error>(())
 3130                    });
 3131                }
 3132            }
 3133
 3134            let save_result = this
 3135                .update_in(cx, |this, window, cx| {
 3136                    this.save_all_internal(SaveIntent::Close, window, cx)
 3137                })?
 3138                .await;
 3139
 3140            // If we're not quitting, but closing, we remove the workspace from
 3141            // the current session.
 3142            if close_intent != CloseIntent::Quit
 3143                && !save_last_workspace
 3144                && save_result.as_ref().is_ok_and(|&res| res)
 3145            {
 3146                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3147                    .await;
 3148            }
 3149
 3150            save_result
 3151        })
 3152    }
 3153
 3154    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3155        self.save_all_internal(
 3156            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3157            window,
 3158            cx,
 3159        )
 3160        .detach_and_log_err(cx);
 3161    }
 3162
 3163    fn send_keystrokes(
 3164        &mut self,
 3165        action: &SendKeystrokes,
 3166        window: &mut Window,
 3167        cx: &mut Context<Self>,
 3168    ) {
 3169        let keystrokes: Vec<Keystroke> = action
 3170            .0
 3171            .split(' ')
 3172            .flat_map(|k| Keystroke::parse(k).log_err())
 3173            .map(|k| {
 3174                cx.keyboard_mapper()
 3175                    .map_key_equivalent(k, false)
 3176                    .inner()
 3177                    .clone()
 3178            })
 3179            .collect();
 3180        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3181    }
 3182
 3183    pub fn send_keystrokes_impl(
 3184        &mut self,
 3185        keystrokes: Vec<Keystroke>,
 3186        window: &mut Window,
 3187        cx: &mut Context<Self>,
 3188    ) -> Shared<Task<()>> {
 3189        let mut state = self.dispatching_keystrokes.borrow_mut();
 3190        if !state.dispatched.insert(keystrokes.clone()) {
 3191            cx.propagate();
 3192            return state.task.clone().unwrap();
 3193        }
 3194
 3195        state.queue.extend(keystrokes);
 3196
 3197        let keystrokes = self.dispatching_keystrokes.clone();
 3198        if state.task.is_none() {
 3199            state.task = Some(
 3200                window
 3201                    .spawn(cx, async move |cx| {
 3202                        // limit to 100 keystrokes to avoid infinite recursion.
 3203                        for _ in 0..100 {
 3204                            let keystroke = {
 3205                                let mut state = keystrokes.borrow_mut();
 3206                                let Some(keystroke) = state.queue.pop_front() else {
 3207                                    state.dispatched.clear();
 3208                                    state.task.take();
 3209                                    return;
 3210                                };
 3211                                keystroke
 3212                            };
 3213                            cx.update(|window, cx| {
 3214                                let focused = window.focused(cx);
 3215                                window.dispatch_keystroke(keystroke.clone(), cx);
 3216                                if window.focused(cx) != focused {
 3217                                    // dispatch_keystroke may cause the focus to change.
 3218                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3219                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3220                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3221                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3222                                    // )
 3223                                    window.draw(cx).clear();
 3224                                }
 3225                            })
 3226                            .ok();
 3227
 3228                            // Yield between synthetic keystrokes so deferred focus and
 3229                            // other effects can settle before dispatching the next key.
 3230                            yield_now().await;
 3231                        }
 3232
 3233                        *keystrokes.borrow_mut() = Default::default();
 3234                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3235                    })
 3236                    .shared(),
 3237            );
 3238        }
 3239        state.task.clone().unwrap()
 3240    }
 3241
 3242    fn save_all_internal(
 3243        &mut self,
 3244        mut save_intent: SaveIntent,
 3245        window: &mut Window,
 3246        cx: &mut Context<Self>,
 3247    ) -> Task<Result<bool>> {
 3248        if self.project.read(cx).is_disconnected(cx) {
 3249            return Task::ready(Ok(true));
 3250        }
 3251        let dirty_items = self
 3252            .panes
 3253            .iter()
 3254            .flat_map(|pane| {
 3255                pane.read(cx).items().filter_map(|item| {
 3256                    if item.is_dirty(cx) {
 3257                        item.tab_content_text(0, cx);
 3258                        Some((pane.downgrade(), item.boxed_clone()))
 3259                    } else {
 3260                        None
 3261                    }
 3262                })
 3263            })
 3264            .collect::<Vec<_>>();
 3265
 3266        let project = self.project.clone();
 3267        cx.spawn_in(window, async move |workspace, cx| {
 3268            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3269                let (serialize_tasks, remaining_dirty_items) =
 3270                    workspace.update_in(cx, |workspace, window, cx| {
 3271                        let mut remaining_dirty_items = Vec::new();
 3272                        let mut serialize_tasks = Vec::new();
 3273                        for (pane, item) in dirty_items {
 3274                            if let Some(task) = item
 3275                                .to_serializable_item_handle(cx)
 3276                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3277                            {
 3278                                serialize_tasks.push(task);
 3279                            } else {
 3280                                remaining_dirty_items.push((pane, item));
 3281                            }
 3282                        }
 3283                        (serialize_tasks, remaining_dirty_items)
 3284                    })?;
 3285
 3286                futures::future::try_join_all(serialize_tasks).await?;
 3287
 3288                if !remaining_dirty_items.is_empty() {
 3289                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3290                }
 3291
 3292                if remaining_dirty_items.len() > 1 {
 3293                    let answer = workspace.update_in(cx, |_, window, cx| {
 3294                        let detail = Pane::file_names_for_prompt(
 3295                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3296                            cx,
 3297                        );
 3298                        window.prompt(
 3299                            PromptLevel::Warning,
 3300                            "Do you want to save all changes in the following files?",
 3301                            Some(&detail),
 3302                            &["Save all", "Discard all", "Cancel"],
 3303                            cx,
 3304                        )
 3305                    })?;
 3306                    match answer.await.log_err() {
 3307                        Some(0) => save_intent = SaveIntent::SaveAll,
 3308                        Some(1) => save_intent = SaveIntent::Skip,
 3309                        Some(2) => return Ok(false),
 3310                        _ => {}
 3311                    }
 3312                }
 3313
 3314                remaining_dirty_items
 3315            } else {
 3316                dirty_items
 3317            };
 3318
 3319            for (pane, item) in dirty_items {
 3320                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3321                    (
 3322                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3323                        item.project_entry_ids(cx),
 3324                    )
 3325                })?;
 3326                if (singleton || !project_entry_ids.is_empty())
 3327                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3328                {
 3329                    return Ok(false);
 3330                }
 3331            }
 3332            Ok(true)
 3333        })
 3334    }
 3335
 3336    pub fn open_workspace_for_paths(
 3337        &mut self,
 3338        replace_current_window: bool,
 3339        paths: Vec<PathBuf>,
 3340        window: &mut Window,
 3341        cx: &mut Context<Self>,
 3342    ) -> Task<Result<Entity<Workspace>>> {
 3343        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 3344        let is_remote = self.project.read(cx).is_via_collab();
 3345        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3346        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3347
 3348        let window_to_replace = if replace_current_window {
 3349            window_handle
 3350        } else if is_remote || has_worktree || has_dirty_items {
 3351            None
 3352        } else {
 3353            window_handle
 3354        };
 3355        let app_state = self.app_state.clone();
 3356
 3357        cx.spawn(async move |_, cx| {
 3358            let OpenResult { workspace, .. } = cx
 3359                .update(|cx| {
 3360                    open_paths(
 3361                        &paths,
 3362                        app_state,
 3363                        OpenOptions {
 3364                            replace_window: window_to_replace,
 3365                            ..Default::default()
 3366                        },
 3367                        cx,
 3368                    )
 3369                })
 3370                .await?;
 3371            Ok(workspace)
 3372        })
 3373    }
 3374
 3375    #[allow(clippy::type_complexity)]
 3376    pub fn open_paths(
 3377        &mut self,
 3378        mut abs_paths: Vec<PathBuf>,
 3379        options: OpenOptions,
 3380        pane: Option<WeakEntity<Pane>>,
 3381        window: &mut Window,
 3382        cx: &mut Context<Self>,
 3383    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3384        let fs = self.app_state.fs.clone();
 3385
 3386        let caller_ordered_abs_paths = abs_paths.clone();
 3387
 3388        // Sort the paths to ensure we add worktrees for parents before their children.
 3389        abs_paths.sort_unstable();
 3390        cx.spawn_in(window, async move |this, cx| {
 3391            let mut tasks = Vec::with_capacity(abs_paths.len());
 3392
 3393            for abs_path in &abs_paths {
 3394                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3395                    OpenVisible::All => Some(true),
 3396                    OpenVisible::None => Some(false),
 3397                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3398                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3399                        Some(None) => Some(true),
 3400                        None => None,
 3401                    },
 3402                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3403                        Some(Some(metadata)) => Some(metadata.is_dir),
 3404                        Some(None) => Some(false),
 3405                        None => None,
 3406                    },
 3407                };
 3408                let project_path = match visible {
 3409                    Some(visible) => match this
 3410                        .update(cx, |this, cx| {
 3411                            Workspace::project_path_for_path(
 3412                                this.project.clone(),
 3413                                abs_path,
 3414                                visible,
 3415                                cx,
 3416                            )
 3417                        })
 3418                        .log_err()
 3419                    {
 3420                        Some(project_path) => project_path.await.log_err(),
 3421                        None => None,
 3422                    },
 3423                    None => None,
 3424                };
 3425
 3426                let this = this.clone();
 3427                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3428                let fs = fs.clone();
 3429                let pane = pane.clone();
 3430                let task = cx.spawn(async move |cx| {
 3431                    let (_worktree, project_path) = project_path?;
 3432                    if fs.is_dir(&abs_path).await {
 3433                        // Opening a directory should not race to update the active entry.
 3434                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3435                        None
 3436                    } else {
 3437                        Some(
 3438                            this.update_in(cx, |this, window, cx| {
 3439                                this.open_path(
 3440                                    project_path,
 3441                                    pane,
 3442                                    options.focus.unwrap_or(true),
 3443                                    window,
 3444                                    cx,
 3445                                )
 3446                            })
 3447                            .ok()?
 3448                            .await,
 3449                        )
 3450                    }
 3451                });
 3452                tasks.push(task);
 3453            }
 3454
 3455            let results = futures::future::join_all(tasks).await;
 3456
 3457            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3458            let mut winner: Option<(PathBuf, bool)> = None;
 3459            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3460                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3461                    if !metadata.is_dir {
 3462                        winner = Some((abs_path, false));
 3463                        break;
 3464                    }
 3465                    if winner.is_none() {
 3466                        winner = Some((abs_path, true));
 3467                    }
 3468                } else if winner.is_none() {
 3469                    winner = Some((abs_path, false));
 3470                }
 3471            }
 3472
 3473            // Compute the winner entry id on the foreground thread and emit once, after all
 3474            // paths finish opening. This avoids races between concurrently-opening paths
 3475            // (directories in particular) and makes the resulting project panel selection
 3476            // deterministic.
 3477            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3478                'emit_winner: {
 3479                    let winner_abs_path: Arc<Path> =
 3480                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3481
 3482                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3483                        OpenVisible::All => true,
 3484                        OpenVisible::None => false,
 3485                        OpenVisible::OnlyFiles => !winner_is_dir,
 3486                        OpenVisible::OnlyDirectories => winner_is_dir,
 3487                    };
 3488
 3489                    let Some(worktree_task) = this
 3490                        .update(cx, |workspace, cx| {
 3491                            workspace.project.update(cx, |project, cx| {
 3492                                project.find_or_create_worktree(
 3493                                    winner_abs_path.as_ref(),
 3494                                    visible,
 3495                                    cx,
 3496                                )
 3497                            })
 3498                        })
 3499                        .ok()
 3500                    else {
 3501                        break 'emit_winner;
 3502                    };
 3503
 3504                    let Ok((worktree, _)) = worktree_task.await else {
 3505                        break 'emit_winner;
 3506                    };
 3507
 3508                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3509                        let worktree = worktree.read(cx);
 3510                        let worktree_abs_path = worktree.abs_path();
 3511                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3512                            worktree.root_entry()
 3513                        } else {
 3514                            winner_abs_path
 3515                                .strip_prefix(worktree_abs_path.as_ref())
 3516                                .ok()
 3517                                .and_then(|relative_path| {
 3518                                    let relative_path =
 3519                                        RelPath::new(relative_path, PathStyle::local())
 3520                                            .log_err()?;
 3521                                    worktree.entry_for_path(&relative_path)
 3522                                })
 3523                        }?;
 3524                        Some(entry.id)
 3525                    }) else {
 3526                        break 'emit_winner;
 3527                    };
 3528
 3529                    this.update(cx, |workspace, cx| {
 3530                        workspace.project.update(cx, |_, cx| {
 3531                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3532                        });
 3533                    })
 3534                    .ok();
 3535                }
 3536            }
 3537
 3538            results
 3539        })
 3540    }
 3541
 3542    pub fn open_resolved_path(
 3543        &mut self,
 3544        path: ResolvedPath,
 3545        window: &mut Window,
 3546        cx: &mut Context<Self>,
 3547    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3548        match path {
 3549            ResolvedPath::ProjectPath { project_path, .. } => {
 3550                self.open_path(project_path, None, true, window, cx)
 3551            }
 3552            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3553                PathBuf::from(path),
 3554                OpenOptions {
 3555                    visible: Some(OpenVisible::None),
 3556                    ..Default::default()
 3557                },
 3558                window,
 3559                cx,
 3560            ),
 3561        }
 3562    }
 3563
 3564    pub fn absolute_path_of_worktree(
 3565        &self,
 3566        worktree_id: WorktreeId,
 3567        cx: &mut Context<Self>,
 3568    ) -> Option<PathBuf> {
 3569        self.project
 3570            .read(cx)
 3571            .worktree_for_id(worktree_id, cx)
 3572            // TODO: use `abs_path` or `root_dir`
 3573            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3574    }
 3575
 3576    pub fn add_folder_to_project(
 3577        &mut self,
 3578        _: &AddFolderToProject,
 3579        window: &mut Window,
 3580        cx: &mut Context<Self>,
 3581    ) {
 3582        let project = self.project.read(cx);
 3583        if project.is_via_collab() {
 3584            self.show_error(
 3585                &anyhow!("You cannot add folders to someone else's project"),
 3586                cx,
 3587            );
 3588            return;
 3589        }
 3590        let paths = self.prompt_for_open_path(
 3591            PathPromptOptions {
 3592                files: false,
 3593                directories: true,
 3594                multiple: true,
 3595                prompt: None,
 3596            },
 3597            DirectoryLister::Project(self.project.clone()),
 3598            window,
 3599            cx,
 3600        );
 3601        cx.spawn_in(window, async move |this, cx| {
 3602            if let Some(paths) = paths.await.log_err().flatten() {
 3603                let results = this
 3604                    .update_in(cx, |this, window, cx| {
 3605                        this.open_paths(
 3606                            paths,
 3607                            OpenOptions {
 3608                                visible: Some(OpenVisible::All),
 3609                                ..Default::default()
 3610                            },
 3611                            None,
 3612                            window,
 3613                            cx,
 3614                        )
 3615                    })?
 3616                    .await;
 3617                for result in results.into_iter().flatten() {
 3618                    result.log_err();
 3619                }
 3620            }
 3621            anyhow::Ok(())
 3622        })
 3623        .detach_and_log_err(cx);
 3624    }
 3625
 3626    pub fn project_path_for_path(
 3627        project: Entity<Project>,
 3628        abs_path: &Path,
 3629        visible: bool,
 3630        cx: &mut App,
 3631    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3632        let entry = project.update(cx, |project, cx| {
 3633            project.find_or_create_worktree(abs_path, visible, cx)
 3634        });
 3635        cx.spawn(async move |cx| {
 3636            let (worktree, path) = entry.await?;
 3637            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3638            Ok((worktree, ProjectPath { worktree_id, path }))
 3639        })
 3640    }
 3641
 3642    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3643        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3644    }
 3645
 3646    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3647        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3648    }
 3649
 3650    pub fn items_of_type<'a, T: Item>(
 3651        &'a self,
 3652        cx: &'a App,
 3653    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3654        self.panes
 3655            .iter()
 3656            .flat_map(|pane| pane.read(cx).items_of_type())
 3657    }
 3658
 3659    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3660        self.active_pane().read(cx).active_item()
 3661    }
 3662
 3663    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3664        let item = self.active_item(cx)?;
 3665        item.to_any_view().downcast::<I>().ok()
 3666    }
 3667
 3668    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3669        self.active_item(cx).and_then(|item| item.project_path(cx))
 3670    }
 3671
 3672    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3673        self.recent_navigation_history_iter(cx)
 3674            .filter_map(|(path, abs_path)| {
 3675                let worktree = self
 3676                    .project
 3677                    .read(cx)
 3678                    .worktree_for_id(path.worktree_id, cx)?;
 3679                if worktree.read(cx).is_visible() {
 3680                    abs_path
 3681                } else {
 3682                    None
 3683                }
 3684            })
 3685            .next()
 3686    }
 3687
 3688    pub fn save_active_item(
 3689        &mut self,
 3690        save_intent: SaveIntent,
 3691        window: &mut Window,
 3692        cx: &mut App,
 3693    ) -> Task<Result<()>> {
 3694        let project = self.project.clone();
 3695        let pane = self.active_pane();
 3696        let item = pane.read(cx).active_item();
 3697        let pane = pane.downgrade();
 3698
 3699        window.spawn(cx, async move |cx| {
 3700            if let Some(item) = item {
 3701                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3702                    .await
 3703                    .map(|_| ())
 3704            } else {
 3705                Ok(())
 3706            }
 3707        })
 3708    }
 3709
 3710    pub fn close_inactive_items_and_panes(
 3711        &mut self,
 3712        action: &CloseInactiveTabsAndPanes,
 3713        window: &mut Window,
 3714        cx: &mut Context<Self>,
 3715    ) {
 3716        if let Some(task) = self.close_all_internal(
 3717            true,
 3718            action.save_intent.unwrap_or(SaveIntent::Close),
 3719            window,
 3720            cx,
 3721        ) {
 3722            task.detach_and_log_err(cx)
 3723        }
 3724    }
 3725
 3726    pub fn close_all_items_and_panes(
 3727        &mut self,
 3728        action: &CloseAllItemsAndPanes,
 3729        window: &mut Window,
 3730        cx: &mut Context<Self>,
 3731    ) {
 3732        if let Some(task) = self.close_all_internal(
 3733            false,
 3734            action.save_intent.unwrap_or(SaveIntent::Close),
 3735            window,
 3736            cx,
 3737        ) {
 3738            task.detach_and_log_err(cx)
 3739        }
 3740    }
 3741
 3742    /// Closes the active item across all panes.
 3743    pub fn close_item_in_all_panes(
 3744        &mut self,
 3745        action: &CloseItemInAllPanes,
 3746        window: &mut Window,
 3747        cx: &mut Context<Self>,
 3748    ) {
 3749        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3750            return;
 3751        };
 3752
 3753        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3754        let close_pinned = action.close_pinned;
 3755
 3756        if let Some(project_path) = active_item.project_path(cx) {
 3757            self.close_items_with_project_path(
 3758                &project_path,
 3759                save_intent,
 3760                close_pinned,
 3761                window,
 3762                cx,
 3763            );
 3764        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3765            let item_id = active_item.item_id();
 3766            self.active_pane().update(cx, |pane, cx| {
 3767                pane.close_item_by_id(item_id, save_intent, window, cx)
 3768                    .detach_and_log_err(cx);
 3769            });
 3770        }
 3771    }
 3772
 3773    /// Closes all items with the given project path across all panes.
 3774    pub fn close_items_with_project_path(
 3775        &mut self,
 3776        project_path: &ProjectPath,
 3777        save_intent: SaveIntent,
 3778        close_pinned: bool,
 3779        window: &mut Window,
 3780        cx: &mut Context<Self>,
 3781    ) {
 3782        let panes = self.panes().to_vec();
 3783        for pane in panes {
 3784            pane.update(cx, |pane, cx| {
 3785                pane.close_items_for_project_path(
 3786                    project_path,
 3787                    save_intent,
 3788                    close_pinned,
 3789                    window,
 3790                    cx,
 3791                )
 3792                .detach_and_log_err(cx);
 3793            });
 3794        }
 3795    }
 3796
 3797    fn close_all_internal(
 3798        &mut self,
 3799        retain_active_pane: bool,
 3800        save_intent: SaveIntent,
 3801        window: &mut Window,
 3802        cx: &mut Context<Self>,
 3803    ) -> Option<Task<Result<()>>> {
 3804        let current_pane = self.active_pane();
 3805
 3806        let mut tasks = Vec::new();
 3807
 3808        if retain_active_pane {
 3809            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3810                pane.close_other_items(
 3811                    &CloseOtherItems {
 3812                        save_intent: None,
 3813                        close_pinned: false,
 3814                    },
 3815                    None,
 3816                    window,
 3817                    cx,
 3818                )
 3819            });
 3820
 3821            tasks.push(current_pane_close);
 3822        }
 3823
 3824        for pane in self.panes() {
 3825            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3826                continue;
 3827            }
 3828
 3829            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3830                pane.close_all_items(
 3831                    &CloseAllItems {
 3832                        save_intent: Some(save_intent),
 3833                        close_pinned: false,
 3834                    },
 3835                    window,
 3836                    cx,
 3837                )
 3838            });
 3839
 3840            tasks.push(close_pane_items)
 3841        }
 3842
 3843        if tasks.is_empty() {
 3844            None
 3845        } else {
 3846            Some(cx.spawn_in(window, async move |_, _| {
 3847                for task in tasks {
 3848                    task.await?
 3849                }
 3850                Ok(())
 3851            }))
 3852        }
 3853    }
 3854
 3855    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3856        self.dock_at_position(position).read(cx).is_open()
 3857    }
 3858
 3859    pub fn toggle_dock(
 3860        &mut self,
 3861        dock_side: DockPosition,
 3862        window: &mut Window,
 3863        cx: &mut Context<Self>,
 3864    ) {
 3865        let mut focus_center = false;
 3866        let mut reveal_dock = false;
 3867
 3868        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3869        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3870
 3871        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3872            telemetry::event!(
 3873                "Panel Button Clicked",
 3874                name = panel.persistent_name(),
 3875                toggle_state = !was_visible
 3876            );
 3877        }
 3878        if was_visible {
 3879            self.save_open_dock_positions(cx);
 3880        }
 3881
 3882        let dock = self.dock_at_position(dock_side);
 3883        dock.update(cx, |dock, cx| {
 3884            dock.set_open(!was_visible, window, cx);
 3885
 3886            if dock.active_panel().is_none() {
 3887                let Some(panel_ix) = dock
 3888                    .first_enabled_panel_idx(cx)
 3889                    .log_with_level(log::Level::Info)
 3890                else {
 3891                    return;
 3892                };
 3893                dock.activate_panel(panel_ix, window, cx);
 3894            }
 3895
 3896            if let Some(active_panel) = dock.active_panel() {
 3897                if was_visible {
 3898                    if active_panel
 3899                        .panel_focus_handle(cx)
 3900                        .contains_focused(window, cx)
 3901                    {
 3902                        focus_center = true;
 3903                    }
 3904                } else {
 3905                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3906                    window.focus(focus_handle, cx);
 3907                    reveal_dock = true;
 3908                }
 3909            }
 3910        });
 3911
 3912        if reveal_dock {
 3913            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3914        }
 3915
 3916        if focus_center {
 3917            self.active_pane
 3918                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3919        }
 3920
 3921        cx.notify();
 3922        self.serialize_workspace(window, cx);
 3923    }
 3924
 3925    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3926        self.all_docks().into_iter().find(|&dock| {
 3927            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3928        })
 3929    }
 3930
 3931    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3932        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3933            self.save_open_dock_positions(cx);
 3934            dock.update(cx, |dock, cx| {
 3935                dock.set_open(false, window, cx);
 3936            });
 3937            return true;
 3938        }
 3939        false
 3940    }
 3941
 3942    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3943        self.save_open_dock_positions(cx);
 3944        for dock in self.all_docks() {
 3945            dock.update(cx, |dock, cx| {
 3946                dock.set_open(false, window, cx);
 3947            });
 3948        }
 3949
 3950        cx.focus_self(window);
 3951        cx.notify();
 3952        self.serialize_workspace(window, cx);
 3953    }
 3954
 3955    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3956        self.all_docks()
 3957            .into_iter()
 3958            .filter_map(|dock| {
 3959                let dock_ref = dock.read(cx);
 3960                if dock_ref.is_open() {
 3961                    Some(dock_ref.position())
 3962                } else {
 3963                    None
 3964                }
 3965            })
 3966            .collect()
 3967    }
 3968
 3969    /// Saves the positions of currently open docks.
 3970    ///
 3971    /// Updates `last_open_dock_positions` with positions of all currently open
 3972    /// docks, to later be restored by the 'Toggle All Docks' action.
 3973    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3974        let open_dock_positions = self.get_open_dock_positions(cx);
 3975        if !open_dock_positions.is_empty() {
 3976            self.last_open_dock_positions = open_dock_positions;
 3977        }
 3978    }
 3979
 3980    /// Toggles all docks between open and closed states.
 3981    ///
 3982    /// If any docks are open, closes all and remembers their positions. If all
 3983    /// docks are closed, restores the last remembered dock configuration.
 3984    fn toggle_all_docks(
 3985        &mut self,
 3986        _: &ToggleAllDocks,
 3987        window: &mut Window,
 3988        cx: &mut Context<Self>,
 3989    ) {
 3990        let open_dock_positions = self.get_open_dock_positions(cx);
 3991
 3992        if !open_dock_positions.is_empty() {
 3993            self.close_all_docks(window, cx);
 3994        } else if !self.last_open_dock_positions.is_empty() {
 3995            self.restore_last_open_docks(window, cx);
 3996        }
 3997    }
 3998
 3999    /// Reopens docks from the most recently remembered configuration.
 4000    ///
 4001    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 4002    /// and clears the stored positions.
 4003    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4004        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 4005
 4006        for position in positions_to_open {
 4007            let dock = self.dock_at_position(position);
 4008            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 4009        }
 4010
 4011        cx.focus_self(window);
 4012        cx.notify();
 4013        self.serialize_workspace(window, cx);
 4014    }
 4015
 4016    /// Transfer focus to the panel of the given type.
 4017    pub fn focus_panel<T: Panel>(
 4018        &mut self,
 4019        window: &mut Window,
 4020        cx: &mut Context<Self>,
 4021    ) -> Option<Entity<T>> {
 4022        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 4023        panel.to_any().downcast().ok()
 4024    }
 4025
 4026    /// Focus the panel of the given type if it isn't already focused. If it is
 4027    /// already focused, then transfer focus back to the workspace center.
 4028    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4029    /// panel when transferring focus back to the center.
 4030    pub fn toggle_panel_focus<T: Panel>(
 4031        &mut self,
 4032        window: &mut Window,
 4033        cx: &mut Context<Self>,
 4034    ) -> bool {
 4035        let mut did_focus_panel = false;
 4036        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4037            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4038            did_focus_panel
 4039        });
 4040
 4041        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4042            self.close_panel::<T>(window, cx);
 4043        }
 4044
 4045        telemetry::event!(
 4046            "Panel Button Clicked",
 4047            name = T::persistent_name(),
 4048            toggle_state = did_focus_panel
 4049        );
 4050
 4051        did_focus_panel
 4052    }
 4053
 4054    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4055        if let Some(item) = self.active_item(cx) {
 4056            item.item_focus_handle(cx).focus(window, cx);
 4057        } else {
 4058            log::error!("Could not find a focus target when switching focus to the center panes",);
 4059        }
 4060    }
 4061
 4062    pub fn activate_panel_for_proto_id(
 4063        &mut self,
 4064        panel_id: PanelId,
 4065        window: &mut Window,
 4066        cx: &mut Context<Self>,
 4067    ) -> Option<Arc<dyn PanelHandle>> {
 4068        let mut panel = None;
 4069        for dock in self.all_docks() {
 4070            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4071                panel = dock.update(cx, |dock, cx| {
 4072                    dock.activate_panel(panel_index, window, cx);
 4073                    dock.set_open(true, window, cx);
 4074                    dock.active_panel().cloned()
 4075                });
 4076                break;
 4077            }
 4078        }
 4079
 4080        if panel.is_some() {
 4081            cx.notify();
 4082            self.serialize_workspace(window, cx);
 4083        }
 4084
 4085        panel
 4086    }
 4087
 4088    /// Focus or unfocus the given panel type, depending on the given callback.
 4089    fn focus_or_unfocus_panel<T: Panel>(
 4090        &mut self,
 4091        window: &mut Window,
 4092        cx: &mut Context<Self>,
 4093        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4094    ) -> Option<Arc<dyn PanelHandle>> {
 4095        let mut result_panel = None;
 4096        let mut serialize = false;
 4097        for dock in self.all_docks() {
 4098            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4099                let mut focus_center = false;
 4100                let panel = dock.update(cx, |dock, cx| {
 4101                    dock.activate_panel(panel_index, window, cx);
 4102
 4103                    let panel = dock.active_panel().cloned();
 4104                    if let Some(panel) = panel.as_ref() {
 4105                        if should_focus(&**panel, window, cx) {
 4106                            dock.set_open(true, window, cx);
 4107                            panel.panel_focus_handle(cx).focus(window, cx);
 4108                        } else {
 4109                            focus_center = true;
 4110                        }
 4111                    }
 4112                    panel
 4113                });
 4114
 4115                if focus_center {
 4116                    self.active_pane
 4117                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4118                }
 4119
 4120                result_panel = panel;
 4121                serialize = true;
 4122                break;
 4123            }
 4124        }
 4125
 4126        if serialize {
 4127            self.serialize_workspace(window, cx);
 4128        }
 4129
 4130        cx.notify();
 4131        result_panel
 4132    }
 4133
 4134    /// Open the panel of the given type
 4135    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4136        for dock in self.all_docks() {
 4137            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4138                dock.update(cx, |dock, cx| {
 4139                    dock.activate_panel(panel_index, window, cx);
 4140                    dock.set_open(true, window, cx);
 4141                });
 4142            }
 4143        }
 4144    }
 4145
 4146    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4147        for dock in self.all_docks().iter() {
 4148            dock.update(cx, |dock, cx| {
 4149                if dock.panel::<T>().is_some() {
 4150                    dock.set_open(false, window, cx)
 4151                }
 4152            })
 4153        }
 4154    }
 4155
 4156    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4157        self.all_docks()
 4158            .iter()
 4159            .find_map(|dock| dock.read(cx).panel::<T>())
 4160    }
 4161
 4162    fn dismiss_zoomed_items_to_reveal(
 4163        &mut self,
 4164        dock_to_reveal: Option<DockPosition>,
 4165        window: &mut Window,
 4166        cx: &mut Context<Self>,
 4167    ) {
 4168        // If a center pane is zoomed, unzoom it.
 4169        for pane in &self.panes {
 4170            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4171                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4172            }
 4173        }
 4174
 4175        // If another dock is zoomed, hide it.
 4176        let mut focus_center = false;
 4177        for dock in self.all_docks() {
 4178            dock.update(cx, |dock, cx| {
 4179                if Some(dock.position()) != dock_to_reveal
 4180                    && let Some(panel) = dock.active_panel()
 4181                    && panel.is_zoomed(window, cx)
 4182                {
 4183                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4184                    dock.set_open(false, window, cx);
 4185                }
 4186            });
 4187        }
 4188
 4189        if focus_center {
 4190            self.active_pane
 4191                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4192        }
 4193
 4194        if self.zoomed_position != dock_to_reveal {
 4195            self.zoomed = None;
 4196            self.zoomed_position = None;
 4197            cx.emit(Event::ZoomChanged);
 4198        }
 4199
 4200        cx.notify();
 4201    }
 4202
 4203    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4204        let pane = cx.new(|cx| {
 4205            let mut pane = Pane::new(
 4206                self.weak_handle(),
 4207                self.project.clone(),
 4208                self.pane_history_timestamp.clone(),
 4209                None,
 4210                NewFile.boxed_clone(),
 4211                true,
 4212                window,
 4213                cx,
 4214            );
 4215            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4216            pane
 4217        });
 4218        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4219            .detach();
 4220        self.panes.push(pane.clone());
 4221
 4222        window.focus(&pane.focus_handle(cx), cx);
 4223
 4224        cx.emit(Event::PaneAdded(pane.clone()));
 4225        pane
 4226    }
 4227
 4228    pub fn add_item_to_center(
 4229        &mut self,
 4230        item: Box<dyn ItemHandle>,
 4231        window: &mut Window,
 4232        cx: &mut Context<Self>,
 4233    ) -> bool {
 4234        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4235            if let Some(center_pane) = center_pane.upgrade() {
 4236                center_pane.update(cx, |pane, cx| {
 4237                    pane.add_item(item, true, true, None, window, cx)
 4238                });
 4239                true
 4240            } else {
 4241                false
 4242            }
 4243        } else {
 4244            false
 4245        }
 4246    }
 4247
 4248    pub fn add_item_to_active_pane(
 4249        &mut self,
 4250        item: Box<dyn ItemHandle>,
 4251        destination_index: Option<usize>,
 4252        focus_item: bool,
 4253        window: &mut Window,
 4254        cx: &mut App,
 4255    ) {
 4256        self.add_item(
 4257            self.active_pane.clone(),
 4258            item,
 4259            destination_index,
 4260            false,
 4261            focus_item,
 4262            window,
 4263            cx,
 4264        )
 4265    }
 4266
 4267    pub fn add_item(
 4268        &mut self,
 4269        pane: Entity<Pane>,
 4270        item: Box<dyn ItemHandle>,
 4271        destination_index: Option<usize>,
 4272        activate_pane: bool,
 4273        focus_item: bool,
 4274        window: &mut Window,
 4275        cx: &mut App,
 4276    ) {
 4277        pane.update(cx, |pane, cx| {
 4278            pane.add_item(
 4279                item,
 4280                activate_pane,
 4281                focus_item,
 4282                destination_index,
 4283                window,
 4284                cx,
 4285            )
 4286        });
 4287    }
 4288
 4289    pub fn split_item(
 4290        &mut self,
 4291        split_direction: SplitDirection,
 4292        item: Box<dyn ItemHandle>,
 4293        window: &mut Window,
 4294        cx: &mut Context<Self>,
 4295    ) {
 4296        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4297        self.add_item(new_pane, item, None, true, true, window, cx);
 4298    }
 4299
 4300    pub fn open_abs_path(
 4301        &mut self,
 4302        abs_path: PathBuf,
 4303        options: OpenOptions,
 4304        window: &mut Window,
 4305        cx: &mut Context<Self>,
 4306    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4307        cx.spawn_in(window, async move |workspace, cx| {
 4308            let open_paths_task_result = workspace
 4309                .update_in(cx, |workspace, window, cx| {
 4310                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4311                })
 4312                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4313                .await;
 4314            anyhow::ensure!(
 4315                open_paths_task_result.len() == 1,
 4316                "open abs path {abs_path:?} task returned incorrect number of results"
 4317            );
 4318            match open_paths_task_result
 4319                .into_iter()
 4320                .next()
 4321                .expect("ensured single task result")
 4322            {
 4323                Some(open_result) => {
 4324                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4325                }
 4326                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4327            }
 4328        })
 4329    }
 4330
 4331    pub fn split_abs_path(
 4332        &mut self,
 4333        abs_path: PathBuf,
 4334        visible: bool,
 4335        window: &mut Window,
 4336        cx: &mut Context<Self>,
 4337    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4338        let project_path_task =
 4339            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4340        cx.spawn_in(window, async move |this, cx| {
 4341            let (_, path) = project_path_task.await?;
 4342            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4343                .await
 4344        })
 4345    }
 4346
 4347    pub fn open_path(
 4348        &mut self,
 4349        path: impl Into<ProjectPath>,
 4350        pane: Option<WeakEntity<Pane>>,
 4351        focus_item: bool,
 4352        window: &mut Window,
 4353        cx: &mut App,
 4354    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4355        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4356    }
 4357
 4358    pub fn open_path_preview(
 4359        &mut self,
 4360        path: impl Into<ProjectPath>,
 4361        pane: Option<WeakEntity<Pane>>,
 4362        focus_item: bool,
 4363        allow_preview: bool,
 4364        activate: bool,
 4365        window: &mut Window,
 4366        cx: &mut App,
 4367    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4368        let pane = pane.unwrap_or_else(|| {
 4369            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4370                self.panes
 4371                    .first()
 4372                    .expect("There must be an active pane")
 4373                    .downgrade()
 4374            })
 4375        });
 4376
 4377        let project_path = path.into();
 4378        let task = self.load_path(project_path.clone(), window, cx);
 4379        window.spawn(cx, async move |cx| {
 4380            let (project_entry_id, build_item) = task.await?;
 4381
 4382            pane.update_in(cx, |pane, window, cx| {
 4383                pane.open_item(
 4384                    project_entry_id,
 4385                    project_path,
 4386                    focus_item,
 4387                    allow_preview,
 4388                    activate,
 4389                    None,
 4390                    window,
 4391                    cx,
 4392                    build_item,
 4393                )
 4394            })
 4395        })
 4396    }
 4397
 4398    pub fn split_path(
 4399        &mut self,
 4400        path: impl Into<ProjectPath>,
 4401        window: &mut Window,
 4402        cx: &mut Context<Self>,
 4403    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4404        self.split_path_preview(path, false, None, window, cx)
 4405    }
 4406
 4407    pub fn split_path_preview(
 4408        &mut self,
 4409        path: impl Into<ProjectPath>,
 4410        allow_preview: bool,
 4411        split_direction: Option<SplitDirection>,
 4412        window: &mut Window,
 4413        cx: &mut Context<Self>,
 4414    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4415        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4416            self.panes
 4417                .first()
 4418                .expect("There must be an active pane")
 4419                .downgrade()
 4420        });
 4421
 4422        if let Member::Pane(center_pane) = &self.center.root
 4423            && center_pane.read(cx).items_len() == 0
 4424        {
 4425            return self.open_path(path, Some(pane), true, window, cx);
 4426        }
 4427
 4428        let project_path = path.into();
 4429        let task = self.load_path(project_path.clone(), window, cx);
 4430        cx.spawn_in(window, async move |this, cx| {
 4431            let (project_entry_id, build_item) = task.await?;
 4432            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4433                let pane = pane.upgrade()?;
 4434                let new_pane = this.split_pane(
 4435                    pane,
 4436                    split_direction.unwrap_or(SplitDirection::Right),
 4437                    window,
 4438                    cx,
 4439                );
 4440                new_pane.update(cx, |new_pane, cx| {
 4441                    Some(new_pane.open_item(
 4442                        project_entry_id,
 4443                        project_path,
 4444                        true,
 4445                        allow_preview,
 4446                        true,
 4447                        None,
 4448                        window,
 4449                        cx,
 4450                        build_item,
 4451                    ))
 4452                })
 4453            })
 4454            .map(|option| option.context("pane was dropped"))?
 4455        })
 4456    }
 4457
 4458    fn load_path(
 4459        &mut self,
 4460        path: ProjectPath,
 4461        window: &mut Window,
 4462        cx: &mut App,
 4463    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4464        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4465        registry.open_path(self.project(), &path, window, cx)
 4466    }
 4467
 4468    pub fn find_project_item<T>(
 4469        &self,
 4470        pane: &Entity<Pane>,
 4471        project_item: &Entity<T::Item>,
 4472        cx: &App,
 4473    ) -> Option<Entity<T>>
 4474    where
 4475        T: ProjectItem,
 4476    {
 4477        use project::ProjectItem as _;
 4478        let project_item = project_item.read(cx);
 4479        let entry_id = project_item.entry_id(cx);
 4480        let project_path = project_item.project_path(cx);
 4481
 4482        let mut item = None;
 4483        if let Some(entry_id) = entry_id {
 4484            item = pane.read(cx).item_for_entry(entry_id, cx);
 4485        }
 4486        if item.is_none()
 4487            && let Some(project_path) = project_path
 4488        {
 4489            item = pane.read(cx).item_for_path(project_path, cx);
 4490        }
 4491
 4492        item.and_then(|item| item.downcast::<T>())
 4493    }
 4494
 4495    pub fn is_project_item_open<T>(
 4496        &self,
 4497        pane: &Entity<Pane>,
 4498        project_item: &Entity<T::Item>,
 4499        cx: &App,
 4500    ) -> bool
 4501    where
 4502        T: ProjectItem,
 4503    {
 4504        self.find_project_item::<T>(pane, project_item, cx)
 4505            .is_some()
 4506    }
 4507
 4508    pub fn open_project_item<T>(
 4509        &mut self,
 4510        pane: Entity<Pane>,
 4511        project_item: Entity<T::Item>,
 4512        activate_pane: bool,
 4513        focus_item: bool,
 4514        keep_old_preview: bool,
 4515        allow_new_preview: bool,
 4516        window: &mut Window,
 4517        cx: &mut Context<Self>,
 4518    ) -> Entity<T>
 4519    where
 4520        T: ProjectItem,
 4521    {
 4522        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4523
 4524        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4525            if !keep_old_preview
 4526                && let Some(old_id) = old_item_id
 4527                && old_id != item.item_id()
 4528            {
 4529                // switching to a different item, so unpreview old active item
 4530                pane.update(cx, |pane, _| {
 4531                    pane.unpreview_item_if_preview(old_id);
 4532                });
 4533            }
 4534
 4535            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4536            if !allow_new_preview {
 4537                pane.update(cx, |pane, _| {
 4538                    pane.unpreview_item_if_preview(item.item_id());
 4539                });
 4540            }
 4541            return item;
 4542        }
 4543
 4544        let item = pane.update(cx, |pane, cx| {
 4545            cx.new(|cx| {
 4546                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4547            })
 4548        });
 4549        let mut destination_index = None;
 4550        pane.update(cx, |pane, cx| {
 4551            if !keep_old_preview && let Some(old_id) = old_item_id {
 4552                pane.unpreview_item_if_preview(old_id);
 4553            }
 4554            if allow_new_preview {
 4555                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4556            }
 4557        });
 4558
 4559        self.add_item(
 4560            pane,
 4561            Box::new(item.clone()),
 4562            destination_index,
 4563            activate_pane,
 4564            focus_item,
 4565            window,
 4566            cx,
 4567        );
 4568        item
 4569    }
 4570
 4571    pub fn open_shared_screen(
 4572        &mut self,
 4573        peer_id: PeerId,
 4574        window: &mut Window,
 4575        cx: &mut Context<Self>,
 4576    ) {
 4577        if let Some(shared_screen) =
 4578            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4579        {
 4580            self.active_pane.update(cx, |pane, cx| {
 4581                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4582            });
 4583        }
 4584    }
 4585
 4586    pub fn activate_item(
 4587        &mut self,
 4588        item: &dyn ItemHandle,
 4589        activate_pane: bool,
 4590        focus_item: bool,
 4591        window: &mut Window,
 4592        cx: &mut App,
 4593    ) -> bool {
 4594        let result = self.panes.iter().find_map(|pane| {
 4595            pane.read(cx)
 4596                .index_for_item(item)
 4597                .map(|ix| (pane.clone(), ix))
 4598        });
 4599        if let Some((pane, ix)) = result {
 4600            pane.update(cx, |pane, cx| {
 4601                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4602            });
 4603            true
 4604        } else {
 4605            false
 4606        }
 4607    }
 4608
 4609    fn activate_pane_at_index(
 4610        &mut self,
 4611        action: &ActivatePane,
 4612        window: &mut Window,
 4613        cx: &mut Context<Self>,
 4614    ) {
 4615        let panes = self.center.panes();
 4616        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4617            window.focus(&pane.focus_handle(cx), cx);
 4618        } else {
 4619            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4620                .detach();
 4621        }
 4622    }
 4623
 4624    fn move_item_to_pane_at_index(
 4625        &mut self,
 4626        action: &MoveItemToPane,
 4627        window: &mut Window,
 4628        cx: &mut Context<Self>,
 4629    ) {
 4630        let panes = self.center.panes();
 4631        let destination = match panes.get(action.destination) {
 4632            Some(&destination) => destination.clone(),
 4633            None => {
 4634                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4635                    return;
 4636                }
 4637                let direction = SplitDirection::Right;
 4638                let split_off_pane = self
 4639                    .find_pane_in_direction(direction, cx)
 4640                    .unwrap_or_else(|| self.active_pane.clone());
 4641                let new_pane = self.add_pane(window, cx);
 4642                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4643                new_pane
 4644            }
 4645        };
 4646
 4647        if action.clone {
 4648            if self
 4649                .active_pane
 4650                .read(cx)
 4651                .active_item()
 4652                .is_some_and(|item| item.can_split(cx))
 4653            {
 4654                clone_active_item(
 4655                    self.database_id(),
 4656                    &self.active_pane,
 4657                    &destination,
 4658                    action.focus,
 4659                    window,
 4660                    cx,
 4661                );
 4662                return;
 4663            }
 4664        }
 4665        move_active_item(
 4666            &self.active_pane,
 4667            &destination,
 4668            action.focus,
 4669            true,
 4670            window,
 4671            cx,
 4672        )
 4673    }
 4674
 4675    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4676        let panes = self.center.panes();
 4677        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4678            let next_ix = (ix + 1) % panes.len();
 4679            let next_pane = panes[next_ix].clone();
 4680            window.focus(&next_pane.focus_handle(cx), cx);
 4681        }
 4682    }
 4683
 4684    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4685        let panes = self.center.panes();
 4686        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4687            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4688            let prev_pane = panes[prev_ix].clone();
 4689            window.focus(&prev_pane.focus_handle(cx), cx);
 4690        }
 4691    }
 4692
 4693    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4694        let last_pane = self.center.last_pane();
 4695        window.focus(&last_pane.focus_handle(cx), cx);
 4696    }
 4697
 4698    pub fn activate_pane_in_direction(
 4699        &mut self,
 4700        direction: SplitDirection,
 4701        window: &mut Window,
 4702        cx: &mut App,
 4703    ) {
 4704        use ActivateInDirectionTarget as Target;
 4705        enum Origin {
 4706            Sidebar,
 4707            LeftDock,
 4708            RightDock,
 4709            BottomDock,
 4710            Center,
 4711        }
 4712
 4713        let origin: Origin = if self
 4714            .sidebar_focus_handle
 4715            .as_ref()
 4716            .is_some_and(|h| h.contains_focused(window, cx))
 4717        {
 4718            Origin::Sidebar
 4719        } else {
 4720            [
 4721                (&self.left_dock, Origin::LeftDock),
 4722                (&self.right_dock, Origin::RightDock),
 4723                (&self.bottom_dock, Origin::BottomDock),
 4724            ]
 4725            .into_iter()
 4726            .find_map(|(dock, origin)| {
 4727                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4728                    Some(origin)
 4729                } else {
 4730                    None
 4731                }
 4732            })
 4733            .unwrap_or(Origin::Center)
 4734        };
 4735
 4736        let get_last_active_pane = || {
 4737            let pane = self
 4738                .last_active_center_pane
 4739                .clone()
 4740                .unwrap_or_else(|| {
 4741                    self.panes
 4742                        .first()
 4743                        .expect("There must be an active pane")
 4744                        .downgrade()
 4745                })
 4746                .upgrade()?;
 4747            (pane.read(cx).items_len() != 0).then_some(pane)
 4748        };
 4749
 4750        let try_dock =
 4751            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4752
 4753        let sidebar_target = self
 4754            .sidebar_focus_handle
 4755            .as_ref()
 4756            .map(|h| Target::Sidebar(h.clone()));
 4757
 4758        let target = match (origin, direction) {
 4759            // From the sidebar, only Right navigates into the workspace.
 4760            (Origin::Sidebar, SplitDirection::Right) => try_dock(&self.left_dock)
 4761                .or_else(|| get_last_active_pane().map(Target::Pane))
 4762                .or_else(|| try_dock(&self.bottom_dock))
 4763                .or_else(|| try_dock(&self.right_dock)),
 4764
 4765            (Origin::Sidebar, _) => None,
 4766
 4767            // We're in the center, so we first try to go to a different pane,
 4768            // otherwise try to go to a dock.
 4769            (Origin::Center, direction) => {
 4770                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4771                    Some(Target::Pane(pane))
 4772                } else {
 4773                    match direction {
 4774                        SplitDirection::Up => None,
 4775                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4776                        SplitDirection::Left => try_dock(&self.left_dock).or(sidebar_target),
 4777                        SplitDirection::Right => try_dock(&self.right_dock),
 4778                    }
 4779                }
 4780            }
 4781
 4782            (Origin::LeftDock, SplitDirection::Right) => {
 4783                if let Some(last_active_pane) = get_last_active_pane() {
 4784                    Some(Target::Pane(last_active_pane))
 4785                } else {
 4786                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4787                }
 4788            }
 4789
 4790            (Origin::LeftDock, SplitDirection::Left) => sidebar_target,
 4791
 4792            (Origin::LeftDock, SplitDirection::Down)
 4793            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4794
 4795            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4796            (Origin::BottomDock, SplitDirection::Left) => {
 4797                try_dock(&self.left_dock).or(sidebar_target)
 4798            }
 4799            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4800
 4801            (Origin::RightDock, SplitDirection::Left) => {
 4802                if let Some(last_active_pane) = get_last_active_pane() {
 4803                    Some(Target::Pane(last_active_pane))
 4804                } else {
 4805                    try_dock(&self.bottom_dock)
 4806                        .or_else(|| try_dock(&self.left_dock))
 4807                        .or(sidebar_target)
 4808                }
 4809            }
 4810
 4811            _ => None,
 4812        };
 4813
 4814        match target {
 4815            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4816                let pane = pane.read(cx);
 4817                if let Some(item) = pane.active_item() {
 4818                    item.item_focus_handle(cx).focus(window, cx);
 4819                } else {
 4820                    log::error!(
 4821                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4822                    );
 4823                }
 4824            }
 4825            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4826                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4827                window.defer(cx, move |window, cx| {
 4828                    let dock = dock.read(cx);
 4829                    if let Some(panel) = dock.active_panel() {
 4830                        panel.panel_focus_handle(cx).focus(window, cx);
 4831                    } else {
 4832                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4833                    }
 4834                })
 4835            }
 4836            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4837                focus_handle.focus(window, cx);
 4838            }
 4839            None => {}
 4840        }
 4841    }
 4842
 4843    pub fn move_item_to_pane_in_direction(
 4844        &mut self,
 4845        action: &MoveItemToPaneInDirection,
 4846        window: &mut Window,
 4847        cx: &mut Context<Self>,
 4848    ) {
 4849        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4850            Some(destination) => destination,
 4851            None => {
 4852                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4853                    return;
 4854                }
 4855                let new_pane = self.add_pane(window, cx);
 4856                self.center
 4857                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4858                new_pane
 4859            }
 4860        };
 4861
 4862        if action.clone {
 4863            if self
 4864                .active_pane
 4865                .read(cx)
 4866                .active_item()
 4867                .is_some_and(|item| item.can_split(cx))
 4868            {
 4869                clone_active_item(
 4870                    self.database_id(),
 4871                    &self.active_pane,
 4872                    &destination,
 4873                    action.focus,
 4874                    window,
 4875                    cx,
 4876                );
 4877                return;
 4878            }
 4879        }
 4880        move_active_item(
 4881            &self.active_pane,
 4882            &destination,
 4883            action.focus,
 4884            true,
 4885            window,
 4886            cx,
 4887        );
 4888    }
 4889
 4890    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4891        self.center.bounding_box_for_pane(pane)
 4892    }
 4893
 4894    pub fn find_pane_in_direction(
 4895        &mut self,
 4896        direction: SplitDirection,
 4897        cx: &App,
 4898    ) -> Option<Entity<Pane>> {
 4899        self.center
 4900            .find_pane_in_direction(&self.active_pane, direction, cx)
 4901            .cloned()
 4902    }
 4903
 4904    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4905        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4906            self.center.swap(&self.active_pane, &to, cx);
 4907            cx.notify();
 4908        }
 4909    }
 4910
 4911    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4912        if self
 4913            .center
 4914            .move_to_border(&self.active_pane, direction, cx)
 4915            .unwrap()
 4916        {
 4917            cx.notify();
 4918        }
 4919    }
 4920
 4921    pub fn resize_pane(
 4922        &mut self,
 4923        axis: gpui::Axis,
 4924        amount: Pixels,
 4925        window: &mut Window,
 4926        cx: &mut Context<Self>,
 4927    ) {
 4928        let docks = self.all_docks();
 4929        let active_dock = docks
 4930            .into_iter()
 4931            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4932
 4933        if let Some(dock_entity) = active_dock {
 4934            let dock = dock_entity.read(cx);
 4935            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 4936                return;
 4937            };
 4938            match dock.position() {
 4939                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4940                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4941                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4942            }
 4943        } else {
 4944            self.center
 4945                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4946        }
 4947        cx.notify();
 4948    }
 4949
 4950    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4951        self.center.reset_pane_sizes(cx);
 4952        cx.notify();
 4953    }
 4954
 4955    fn handle_pane_focused(
 4956        &mut self,
 4957        pane: Entity<Pane>,
 4958        window: &mut Window,
 4959        cx: &mut Context<Self>,
 4960    ) {
 4961        // This is explicitly hoisted out of the following check for pane identity as
 4962        // terminal panel panes are not registered as a center panes.
 4963        self.status_bar.update(cx, |status_bar, cx| {
 4964            status_bar.set_active_pane(&pane, window, cx);
 4965        });
 4966        if self.active_pane != pane {
 4967            self.set_active_pane(&pane, window, cx);
 4968        }
 4969
 4970        if self.last_active_center_pane.is_none() {
 4971            self.last_active_center_pane = Some(pane.downgrade());
 4972        }
 4973
 4974        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4975        // This prevents the dock from closing when focus events fire during window activation.
 4976        // We also preserve any dock whose active panel itself has focus — this covers
 4977        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4978        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4979            let dock_read = dock.read(cx);
 4980            if let Some(panel) = dock_read.active_panel() {
 4981                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4982                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4983                {
 4984                    return Some(dock_read.position());
 4985                }
 4986            }
 4987            None
 4988        });
 4989
 4990        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4991        if pane.read(cx).is_zoomed() {
 4992            self.zoomed = Some(pane.downgrade().into());
 4993        } else {
 4994            self.zoomed = None;
 4995        }
 4996        self.zoomed_position = None;
 4997        cx.emit(Event::ZoomChanged);
 4998        self.update_active_view_for_followers(window, cx);
 4999        pane.update(cx, |pane, _| {
 5000            pane.track_alternate_file_items();
 5001        });
 5002
 5003        cx.notify();
 5004    }
 5005
 5006    fn set_active_pane(
 5007        &mut self,
 5008        pane: &Entity<Pane>,
 5009        window: &mut Window,
 5010        cx: &mut Context<Self>,
 5011    ) {
 5012        self.active_pane = pane.clone();
 5013        self.active_item_path_changed(true, window, cx);
 5014        self.last_active_center_pane = Some(pane.downgrade());
 5015    }
 5016
 5017    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5018        self.update_active_view_for_followers(window, cx);
 5019    }
 5020
 5021    fn handle_pane_event(
 5022        &mut self,
 5023        pane: &Entity<Pane>,
 5024        event: &pane::Event,
 5025        window: &mut Window,
 5026        cx: &mut Context<Self>,
 5027    ) {
 5028        let mut serialize_workspace = true;
 5029        match event {
 5030            pane::Event::AddItem { item } => {
 5031                item.added_to_pane(self, pane.clone(), window, cx);
 5032                cx.emit(Event::ItemAdded {
 5033                    item: item.boxed_clone(),
 5034                });
 5035            }
 5036            pane::Event::Split { direction, mode } => {
 5037                match mode {
 5038                    SplitMode::ClonePane => {
 5039                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5040                            .detach();
 5041                    }
 5042                    SplitMode::EmptyPane => {
 5043                        self.split_pane(pane.clone(), *direction, window, cx);
 5044                    }
 5045                    SplitMode::MovePane => {
 5046                        self.split_and_move(pane.clone(), *direction, window, cx);
 5047                    }
 5048                };
 5049            }
 5050            pane::Event::JoinIntoNext => {
 5051                self.join_pane_into_next(pane.clone(), window, cx);
 5052            }
 5053            pane::Event::JoinAll => {
 5054                self.join_all_panes(window, cx);
 5055            }
 5056            pane::Event::Remove { focus_on_pane } => {
 5057                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5058            }
 5059            pane::Event::ActivateItem {
 5060                local,
 5061                focus_changed,
 5062            } => {
 5063                window.invalidate_character_coordinates();
 5064
 5065                pane.update(cx, |pane, _| {
 5066                    pane.track_alternate_file_items();
 5067                });
 5068                if *local {
 5069                    self.unfollow_in_pane(pane, window, cx);
 5070                }
 5071                serialize_workspace = *focus_changed || pane != self.active_pane();
 5072                if pane == self.active_pane() {
 5073                    self.active_item_path_changed(*focus_changed, window, cx);
 5074                    self.update_active_view_for_followers(window, cx);
 5075                } else if *local {
 5076                    self.set_active_pane(pane, window, cx);
 5077                }
 5078            }
 5079            pane::Event::UserSavedItem { item, save_intent } => {
 5080                cx.emit(Event::UserSavedItem {
 5081                    pane: pane.downgrade(),
 5082                    item: item.boxed_clone(),
 5083                    save_intent: *save_intent,
 5084                });
 5085                serialize_workspace = false;
 5086            }
 5087            pane::Event::ChangeItemTitle => {
 5088                if *pane == self.active_pane {
 5089                    self.active_item_path_changed(false, window, cx);
 5090                }
 5091                serialize_workspace = false;
 5092            }
 5093            pane::Event::RemovedItem { item } => {
 5094                cx.emit(Event::ActiveItemChanged);
 5095                self.update_window_edited(window, cx);
 5096                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5097                    && entry.get().entity_id() == pane.entity_id()
 5098                {
 5099                    entry.remove();
 5100                }
 5101                cx.emit(Event::ItemRemoved {
 5102                    item_id: item.item_id(),
 5103                });
 5104            }
 5105            pane::Event::Focus => {
 5106                window.invalidate_character_coordinates();
 5107                self.handle_pane_focused(pane.clone(), window, cx);
 5108            }
 5109            pane::Event::ZoomIn => {
 5110                if *pane == self.active_pane {
 5111                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5112                    if pane.read(cx).has_focus(window, cx) {
 5113                        self.zoomed = Some(pane.downgrade().into());
 5114                        self.zoomed_position = None;
 5115                        cx.emit(Event::ZoomChanged);
 5116                    }
 5117                    cx.notify();
 5118                }
 5119            }
 5120            pane::Event::ZoomOut => {
 5121                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5122                if self.zoomed_position.is_none() {
 5123                    self.zoomed = None;
 5124                    cx.emit(Event::ZoomChanged);
 5125                }
 5126                cx.notify();
 5127            }
 5128            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5129        }
 5130
 5131        if serialize_workspace {
 5132            self.serialize_workspace(window, cx);
 5133        }
 5134    }
 5135
 5136    pub fn unfollow_in_pane(
 5137        &mut self,
 5138        pane: &Entity<Pane>,
 5139        window: &mut Window,
 5140        cx: &mut Context<Workspace>,
 5141    ) -> Option<CollaboratorId> {
 5142        let leader_id = self.leader_for_pane(pane)?;
 5143        self.unfollow(leader_id, window, cx);
 5144        Some(leader_id)
 5145    }
 5146
 5147    pub fn split_pane(
 5148        &mut self,
 5149        pane_to_split: Entity<Pane>,
 5150        split_direction: SplitDirection,
 5151        window: &mut Window,
 5152        cx: &mut Context<Self>,
 5153    ) -> Entity<Pane> {
 5154        let new_pane = self.add_pane(window, cx);
 5155        self.center
 5156            .split(&pane_to_split, &new_pane, split_direction, cx);
 5157        cx.notify();
 5158        new_pane
 5159    }
 5160
 5161    pub fn split_and_move(
 5162        &mut self,
 5163        pane: Entity<Pane>,
 5164        direction: SplitDirection,
 5165        window: &mut Window,
 5166        cx: &mut Context<Self>,
 5167    ) {
 5168        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5169            return;
 5170        };
 5171        let new_pane = self.add_pane(window, cx);
 5172        new_pane.update(cx, |pane, cx| {
 5173            pane.add_item(item, true, true, None, window, cx)
 5174        });
 5175        self.center.split(&pane, &new_pane, direction, cx);
 5176        cx.notify();
 5177    }
 5178
 5179    pub fn split_and_clone(
 5180        &mut self,
 5181        pane: Entity<Pane>,
 5182        direction: SplitDirection,
 5183        window: &mut Window,
 5184        cx: &mut Context<Self>,
 5185    ) -> Task<Option<Entity<Pane>>> {
 5186        let Some(item) = pane.read(cx).active_item() else {
 5187            return Task::ready(None);
 5188        };
 5189        if !item.can_split(cx) {
 5190            return Task::ready(None);
 5191        }
 5192        let task = item.clone_on_split(self.database_id(), window, cx);
 5193        cx.spawn_in(window, async move |this, cx| {
 5194            if let Some(clone) = task.await {
 5195                this.update_in(cx, |this, window, cx| {
 5196                    let new_pane = this.add_pane(window, cx);
 5197                    let nav_history = pane.read(cx).fork_nav_history();
 5198                    new_pane.update(cx, |pane, cx| {
 5199                        pane.set_nav_history(nav_history, cx);
 5200                        pane.add_item(clone, true, true, None, window, cx)
 5201                    });
 5202                    this.center.split(&pane, &new_pane, direction, cx);
 5203                    cx.notify();
 5204                    new_pane
 5205                })
 5206                .ok()
 5207            } else {
 5208                None
 5209            }
 5210        })
 5211    }
 5212
 5213    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5214        let active_item = self.active_pane.read(cx).active_item();
 5215        for pane in &self.panes {
 5216            join_pane_into_active(&self.active_pane, pane, window, cx);
 5217        }
 5218        if let Some(active_item) = active_item {
 5219            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5220        }
 5221        cx.notify();
 5222    }
 5223
 5224    pub fn join_pane_into_next(
 5225        &mut self,
 5226        pane: Entity<Pane>,
 5227        window: &mut Window,
 5228        cx: &mut Context<Self>,
 5229    ) {
 5230        let next_pane = self
 5231            .find_pane_in_direction(SplitDirection::Right, cx)
 5232            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5233            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5234            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5235        let Some(next_pane) = next_pane else {
 5236            return;
 5237        };
 5238        move_all_items(&pane, &next_pane, window, cx);
 5239        cx.notify();
 5240    }
 5241
 5242    fn remove_pane(
 5243        &mut self,
 5244        pane: Entity<Pane>,
 5245        focus_on: Option<Entity<Pane>>,
 5246        window: &mut Window,
 5247        cx: &mut Context<Self>,
 5248    ) {
 5249        if self.center.remove(&pane, cx).unwrap() {
 5250            self.force_remove_pane(&pane, &focus_on, window, cx);
 5251            self.unfollow_in_pane(&pane, window, cx);
 5252            self.last_leaders_by_pane.remove(&pane.downgrade());
 5253            for removed_item in pane.read(cx).items() {
 5254                self.panes_by_item.remove(&removed_item.item_id());
 5255            }
 5256
 5257            cx.notify();
 5258        } else {
 5259            self.active_item_path_changed(true, window, cx);
 5260        }
 5261        cx.emit(Event::PaneRemoved);
 5262    }
 5263
 5264    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5265        &mut self.panes
 5266    }
 5267
 5268    pub fn panes(&self) -> &[Entity<Pane>] {
 5269        &self.panes
 5270    }
 5271
 5272    pub fn active_pane(&self) -> &Entity<Pane> {
 5273        &self.active_pane
 5274    }
 5275
 5276    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5277        for dock in self.all_docks() {
 5278            if dock.focus_handle(cx).contains_focused(window, cx)
 5279                && let Some(pane) = dock
 5280                    .read(cx)
 5281                    .active_panel()
 5282                    .and_then(|panel| panel.pane(cx))
 5283            {
 5284                return pane;
 5285            }
 5286        }
 5287        self.active_pane().clone()
 5288    }
 5289
 5290    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5291        self.find_pane_in_direction(SplitDirection::Right, cx)
 5292            .unwrap_or_else(|| {
 5293                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5294            })
 5295    }
 5296
 5297    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5298        self.pane_for_item_id(handle.item_id())
 5299    }
 5300
 5301    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5302        let weak_pane = self.panes_by_item.get(&item_id)?;
 5303        weak_pane.upgrade()
 5304    }
 5305
 5306    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5307        self.panes
 5308            .iter()
 5309            .find(|pane| pane.entity_id() == entity_id)
 5310            .cloned()
 5311    }
 5312
 5313    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5314        self.follower_states.retain(|leader_id, state| {
 5315            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5316                for item in state.items_by_leader_view_id.values() {
 5317                    item.view.set_leader_id(None, window, cx);
 5318                }
 5319                false
 5320            } else {
 5321                true
 5322            }
 5323        });
 5324        cx.notify();
 5325    }
 5326
 5327    pub fn start_following(
 5328        &mut self,
 5329        leader_id: impl Into<CollaboratorId>,
 5330        window: &mut Window,
 5331        cx: &mut Context<Self>,
 5332    ) -> Option<Task<Result<()>>> {
 5333        let leader_id = leader_id.into();
 5334        let pane = self.active_pane().clone();
 5335
 5336        self.last_leaders_by_pane
 5337            .insert(pane.downgrade(), leader_id);
 5338        self.unfollow(leader_id, window, cx);
 5339        self.unfollow_in_pane(&pane, window, cx);
 5340        self.follower_states.insert(
 5341            leader_id,
 5342            FollowerState {
 5343                center_pane: pane.clone(),
 5344                dock_pane: None,
 5345                active_view_id: None,
 5346                items_by_leader_view_id: Default::default(),
 5347            },
 5348        );
 5349        cx.notify();
 5350
 5351        match leader_id {
 5352            CollaboratorId::PeerId(leader_peer_id) => {
 5353                let room_id = self.active_call()?.room_id(cx)?;
 5354                let project_id = self.project.read(cx).remote_id();
 5355                let request = self.app_state.client.request(proto::Follow {
 5356                    room_id,
 5357                    project_id,
 5358                    leader_id: Some(leader_peer_id),
 5359                });
 5360
 5361                Some(cx.spawn_in(window, async move |this, cx| {
 5362                    let response = request.await?;
 5363                    this.update(cx, |this, _| {
 5364                        let state = this
 5365                            .follower_states
 5366                            .get_mut(&leader_id)
 5367                            .context("following interrupted")?;
 5368                        state.active_view_id = response
 5369                            .active_view
 5370                            .as_ref()
 5371                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5372                        anyhow::Ok(())
 5373                    })??;
 5374                    if let Some(view) = response.active_view {
 5375                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5376                    }
 5377                    this.update_in(cx, |this, window, cx| {
 5378                        this.leader_updated(leader_id, window, cx)
 5379                    })?;
 5380                    Ok(())
 5381                }))
 5382            }
 5383            CollaboratorId::Agent => {
 5384                self.leader_updated(leader_id, window, cx)?;
 5385                Some(Task::ready(Ok(())))
 5386            }
 5387        }
 5388    }
 5389
 5390    pub fn follow_next_collaborator(
 5391        &mut self,
 5392        _: &FollowNextCollaborator,
 5393        window: &mut Window,
 5394        cx: &mut Context<Self>,
 5395    ) {
 5396        let collaborators = self.project.read(cx).collaborators();
 5397        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5398            let mut collaborators = collaborators.keys().copied();
 5399            for peer_id in collaborators.by_ref() {
 5400                if CollaboratorId::PeerId(peer_id) == leader_id {
 5401                    break;
 5402                }
 5403            }
 5404            collaborators.next().map(CollaboratorId::PeerId)
 5405        } else if let Some(last_leader_id) =
 5406            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5407        {
 5408            match last_leader_id {
 5409                CollaboratorId::PeerId(peer_id) => {
 5410                    if collaborators.contains_key(peer_id) {
 5411                        Some(*last_leader_id)
 5412                    } else {
 5413                        None
 5414                    }
 5415                }
 5416                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5417            }
 5418        } else {
 5419            None
 5420        };
 5421
 5422        let pane = self.active_pane.clone();
 5423        let Some(leader_id) = next_leader_id.or_else(|| {
 5424            Some(CollaboratorId::PeerId(
 5425                collaborators.keys().copied().next()?,
 5426            ))
 5427        }) else {
 5428            return;
 5429        };
 5430        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5431            return;
 5432        }
 5433        if let Some(task) = self.start_following(leader_id, window, cx) {
 5434            task.detach_and_log_err(cx)
 5435        }
 5436    }
 5437
 5438    pub fn follow(
 5439        &mut self,
 5440        leader_id: impl Into<CollaboratorId>,
 5441        window: &mut Window,
 5442        cx: &mut Context<Self>,
 5443    ) {
 5444        let leader_id = leader_id.into();
 5445
 5446        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5447            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5448                return;
 5449            };
 5450            let Some(remote_participant) =
 5451                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5452            else {
 5453                return;
 5454            };
 5455
 5456            let project = self.project.read(cx);
 5457
 5458            let other_project_id = match remote_participant.location {
 5459                ParticipantLocation::External => None,
 5460                ParticipantLocation::UnsharedProject => None,
 5461                ParticipantLocation::SharedProject { project_id } => {
 5462                    if Some(project_id) == project.remote_id() {
 5463                        None
 5464                    } else {
 5465                        Some(project_id)
 5466                    }
 5467                }
 5468            };
 5469
 5470            // if they are active in another project, follow there.
 5471            if let Some(project_id) = other_project_id {
 5472                let app_state = self.app_state.clone();
 5473                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5474                    .detach_and_log_err(cx);
 5475            }
 5476        }
 5477
 5478        // if you're already following, find the right pane and focus it.
 5479        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5480            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5481
 5482            return;
 5483        }
 5484
 5485        // Otherwise, follow.
 5486        if let Some(task) = self.start_following(leader_id, window, cx) {
 5487            task.detach_and_log_err(cx)
 5488        }
 5489    }
 5490
 5491    pub fn unfollow(
 5492        &mut self,
 5493        leader_id: impl Into<CollaboratorId>,
 5494        window: &mut Window,
 5495        cx: &mut Context<Self>,
 5496    ) -> Option<()> {
 5497        cx.notify();
 5498
 5499        let leader_id = leader_id.into();
 5500        let state = self.follower_states.remove(&leader_id)?;
 5501        for (_, item) in state.items_by_leader_view_id {
 5502            item.view.set_leader_id(None, window, cx);
 5503        }
 5504
 5505        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5506            let project_id = self.project.read(cx).remote_id();
 5507            let room_id = self.active_call()?.room_id(cx)?;
 5508            self.app_state
 5509                .client
 5510                .send(proto::Unfollow {
 5511                    room_id,
 5512                    project_id,
 5513                    leader_id: Some(leader_peer_id),
 5514                })
 5515                .log_err();
 5516        }
 5517
 5518        Some(())
 5519    }
 5520
 5521    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5522        self.follower_states.contains_key(&id.into())
 5523    }
 5524
 5525    fn active_item_path_changed(
 5526        &mut self,
 5527        focus_changed: bool,
 5528        window: &mut Window,
 5529        cx: &mut Context<Self>,
 5530    ) {
 5531        cx.emit(Event::ActiveItemChanged);
 5532        let active_entry = self.active_project_path(cx);
 5533        self.project.update(cx, |project, cx| {
 5534            project.set_active_path(active_entry.clone(), cx)
 5535        });
 5536
 5537        if focus_changed && let Some(project_path) = &active_entry {
 5538            let git_store_entity = self.project.read(cx).git_store().clone();
 5539            git_store_entity.update(cx, |git_store, cx| {
 5540                git_store.set_active_repo_for_path(project_path, cx);
 5541            });
 5542        }
 5543
 5544        self.update_window_title(window, cx);
 5545    }
 5546
 5547    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5548        let project = self.project().read(cx);
 5549        let mut title = String::new();
 5550
 5551        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5552            let name = {
 5553                let settings_location = SettingsLocation {
 5554                    worktree_id: worktree.read(cx).id(),
 5555                    path: RelPath::empty(),
 5556                };
 5557
 5558                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5559                match &settings.project_name {
 5560                    Some(name) => name.as_str(),
 5561                    None => worktree.read(cx).root_name_str(),
 5562                }
 5563            };
 5564            if i > 0 {
 5565                title.push_str(", ");
 5566            }
 5567            title.push_str(name);
 5568        }
 5569
 5570        if title.is_empty() {
 5571            title = "empty project".to_string();
 5572        }
 5573
 5574        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5575            let filename = path.path.file_name().or_else(|| {
 5576                Some(
 5577                    project
 5578                        .worktree_for_id(path.worktree_id, cx)?
 5579                        .read(cx)
 5580                        .root_name_str(),
 5581                )
 5582            });
 5583
 5584            if let Some(filename) = filename {
 5585                title.push_str("");
 5586                title.push_str(filename.as_ref());
 5587            }
 5588        }
 5589
 5590        if project.is_via_collab() {
 5591            title.push_str("");
 5592        } else if project.is_shared() {
 5593            title.push_str("");
 5594        }
 5595
 5596        if let Some(last_title) = self.last_window_title.as_ref()
 5597            && &title == last_title
 5598        {
 5599            return;
 5600        }
 5601        window.set_window_title(&title);
 5602        SystemWindowTabController::update_tab_title(
 5603            cx,
 5604            window.window_handle().window_id(),
 5605            SharedString::from(&title),
 5606        );
 5607        self.last_window_title = Some(title);
 5608    }
 5609
 5610    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5611        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5612        if is_edited != self.window_edited {
 5613            self.window_edited = is_edited;
 5614            window.set_window_edited(self.window_edited)
 5615        }
 5616    }
 5617
 5618    fn update_item_dirty_state(
 5619        &mut self,
 5620        item: &dyn ItemHandle,
 5621        window: &mut Window,
 5622        cx: &mut App,
 5623    ) {
 5624        let is_dirty = item.is_dirty(cx);
 5625        let item_id = item.item_id();
 5626        let was_dirty = self.dirty_items.contains_key(&item_id);
 5627        if is_dirty == was_dirty {
 5628            return;
 5629        }
 5630        if was_dirty {
 5631            self.dirty_items.remove(&item_id);
 5632            self.update_window_edited(window, cx);
 5633            return;
 5634        }
 5635
 5636        let workspace = self.weak_handle();
 5637        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5638            return;
 5639        };
 5640        let on_release_callback = Box::new(move |cx: &mut App| {
 5641            window_handle
 5642                .update(cx, |_, window, cx| {
 5643                    workspace
 5644                        .update(cx, |workspace, cx| {
 5645                            workspace.dirty_items.remove(&item_id);
 5646                            workspace.update_window_edited(window, cx)
 5647                        })
 5648                        .ok();
 5649                })
 5650                .ok();
 5651        });
 5652
 5653        let s = item.on_release(cx, on_release_callback);
 5654        self.dirty_items.insert(item_id, s);
 5655        self.update_window_edited(window, cx);
 5656    }
 5657
 5658    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5659        if self.notifications.is_empty() {
 5660            None
 5661        } else {
 5662            Some(
 5663                div()
 5664                    .absolute()
 5665                    .right_3()
 5666                    .bottom_3()
 5667                    .w_112()
 5668                    .h_full()
 5669                    .flex()
 5670                    .flex_col()
 5671                    .justify_end()
 5672                    .gap_2()
 5673                    .children(
 5674                        self.notifications
 5675                            .iter()
 5676                            .map(|(_, notification)| notification.clone().into_any()),
 5677                    ),
 5678            )
 5679        }
 5680    }
 5681
 5682    // RPC handlers
 5683
 5684    fn active_view_for_follower(
 5685        &self,
 5686        follower_project_id: Option<u64>,
 5687        window: &mut Window,
 5688        cx: &mut Context<Self>,
 5689    ) -> Option<proto::View> {
 5690        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5691        let item = item?;
 5692        let leader_id = self
 5693            .pane_for(&*item)
 5694            .and_then(|pane| self.leader_for_pane(&pane));
 5695        let leader_peer_id = match leader_id {
 5696            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5697            Some(CollaboratorId::Agent) | None => None,
 5698        };
 5699
 5700        let item_handle = item.to_followable_item_handle(cx)?;
 5701        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5702        let variant = item_handle.to_state_proto(window, cx)?;
 5703
 5704        if item_handle.is_project_item(window, cx)
 5705            && (follower_project_id.is_none()
 5706                || follower_project_id != self.project.read(cx).remote_id())
 5707        {
 5708            return None;
 5709        }
 5710
 5711        Some(proto::View {
 5712            id: id.to_proto(),
 5713            leader_id: leader_peer_id,
 5714            variant: Some(variant),
 5715            panel_id: panel_id.map(|id| id as i32),
 5716        })
 5717    }
 5718
 5719    fn handle_follow(
 5720        &mut self,
 5721        follower_project_id: Option<u64>,
 5722        window: &mut Window,
 5723        cx: &mut Context<Self>,
 5724    ) -> proto::FollowResponse {
 5725        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5726
 5727        cx.notify();
 5728        proto::FollowResponse {
 5729            views: active_view.iter().cloned().collect(),
 5730            active_view,
 5731        }
 5732    }
 5733
 5734    fn handle_update_followers(
 5735        &mut self,
 5736        leader_id: PeerId,
 5737        message: proto::UpdateFollowers,
 5738        _window: &mut Window,
 5739        _cx: &mut Context<Self>,
 5740    ) {
 5741        self.leader_updates_tx
 5742            .unbounded_send((leader_id, message))
 5743            .ok();
 5744    }
 5745
 5746    async fn process_leader_update(
 5747        this: &WeakEntity<Self>,
 5748        leader_id: PeerId,
 5749        update: proto::UpdateFollowers,
 5750        cx: &mut AsyncWindowContext,
 5751    ) -> Result<()> {
 5752        match update.variant.context("invalid update")? {
 5753            proto::update_followers::Variant::CreateView(view) => {
 5754                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5755                let should_add_view = this.update(cx, |this, _| {
 5756                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5757                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5758                    } else {
 5759                        anyhow::Ok(false)
 5760                    }
 5761                })??;
 5762
 5763                if should_add_view {
 5764                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5765                }
 5766            }
 5767            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5768                let should_add_view = this.update(cx, |this, _| {
 5769                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5770                        state.active_view_id = update_active_view
 5771                            .view
 5772                            .as_ref()
 5773                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5774
 5775                        if state.active_view_id.is_some_and(|view_id| {
 5776                            !state.items_by_leader_view_id.contains_key(&view_id)
 5777                        }) {
 5778                            anyhow::Ok(true)
 5779                        } else {
 5780                            anyhow::Ok(false)
 5781                        }
 5782                    } else {
 5783                        anyhow::Ok(false)
 5784                    }
 5785                })??;
 5786
 5787                if should_add_view && let Some(view) = update_active_view.view {
 5788                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5789                }
 5790            }
 5791            proto::update_followers::Variant::UpdateView(update_view) => {
 5792                let variant = update_view.variant.context("missing update view variant")?;
 5793                let id = update_view.id.context("missing update view id")?;
 5794                let mut tasks = Vec::new();
 5795                this.update_in(cx, |this, window, cx| {
 5796                    let project = this.project.clone();
 5797                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5798                        let view_id = ViewId::from_proto(id.clone())?;
 5799                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5800                            tasks.push(item.view.apply_update_proto(
 5801                                &project,
 5802                                variant.clone(),
 5803                                window,
 5804                                cx,
 5805                            ));
 5806                        }
 5807                    }
 5808                    anyhow::Ok(())
 5809                })??;
 5810                try_join_all(tasks).await.log_err();
 5811            }
 5812        }
 5813        this.update_in(cx, |this, window, cx| {
 5814            this.leader_updated(leader_id, window, cx)
 5815        })?;
 5816        Ok(())
 5817    }
 5818
 5819    async fn add_view_from_leader(
 5820        this: WeakEntity<Self>,
 5821        leader_id: PeerId,
 5822        view: &proto::View,
 5823        cx: &mut AsyncWindowContext,
 5824    ) -> Result<()> {
 5825        let this = this.upgrade().context("workspace dropped")?;
 5826
 5827        let Some(id) = view.id.clone() else {
 5828            anyhow::bail!("no id for view");
 5829        };
 5830        let id = ViewId::from_proto(id)?;
 5831        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5832
 5833        let pane = this.update(cx, |this, _cx| {
 5834            let state = this
 5835                .follower_states
 5836                .get(&leader_id.into())
 5837                .context("stopped following")?;
 5838            anyhow::Ok(state.pane().clone())
 5839        })?;
 5840        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5841            let client = this.read(cx).client().clone();
 5842            pane.items().find_map(|item| {
 5843                let item = item.to_followable_item_handle(cx)?;
 5844                if item.remote_id(&client, window, cx) == Some(id) {
 5845                    Some(item)
 5846                } else {
 5847                    None
 5848                }
 5849            })
 5850        })?;
 5851        let item = if let Some(existing_item) = existing_item {
 5852            existing_item
 5853        } else {
 5854            let variant = view.variant.clone();
 5855            anyhow::ensure!(variant.is_some(), "missing view variant");
 5856
 5857            let task = cx.update(|window, cx| {
 5858                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5859            })?;
 5860
 5861            let Some(task) = task else {
 5862                anyhow::bail!(
 5863                    "failed to construct view from leader (maybe from a different version of zed?)"
 5864                );
 5865            };
 5866
 5867            let mut new_item = task.await?;
 5868            pane.update_in(cx, |pane, window, cx| {
 5869                let mut item_to_remove = None;
 5870                for (ix, item) in pane.items().enumerate() {
 5871                    if let Some(item) = item.to_followable_item_handle(cx) {
 5872                        match new_item.dedup(item.as_ref(), window, cx) {
 5873                            Some(item::Dedup::KeepExisting) => {
 5874                                new_item =
 5875                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5876                                break;
 5877                            }
 5878                            Some(item::Dedup::ReplaceExisting) => {
 5879                                item_to_remove = Some((ix, item.item_id()));
 5880                                break;
 5881                            }
 5882                            None => {}
 5883                        }
 5884                    }
 5885                }
 5886
 5887                if let Some((ix, id)) = item_to_remove {
 5888                    pane.remove_item(id, false, false, window, cx);
 5889                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5890                }
 5891            })?;
 5892
 5893            new_item
 5894        };
 5895
 5896        this.update_in(cx, |this, window, cx| {
 5897            let state = this.follower_states.get_mut(&leader_id.into())?;
 5898            item.set_leader_id(Some(leader_id.into()), window, cx);
 5899            state.items_by_leader_view_id.insert(
 5900                id,
 5901                FollowerView {
 5902                    view: item,
 5903                    location: panel_id,
 5904                },
 5905            );
 5906
 5907            Some(())
 5908        })
 5909        .context("no follower state")?;
 5910
 5911        Ok(())
 5912    }
 5913
 5914    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5915        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5916            return;
 5917        };
 5918
 5919        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5920            let buffer_entity_id = agent_location.buffer.entity_id();
 5921            let view_id = ViewId {
 5922                creator: CollaboratorId::Agent,
 5923                id: buffer_entity_id.as_u64(),
 5924            };
 5925            follower_state.active_view_id = Some(view_id);
 5926
 5927            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5928                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5929                hash_map::Entry::Vacant(entry) => {
 5930                    let existing_view =
 5931                        follower_state
 5932                            .center_pane
 5933                            .read(cx)
 5934                            .items()
 5935                            .find_map(|item| {
 5936                                let item = item.to_followable_item_handle(cx)?;
 5937                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5938                                    && item.project_item_model_ids(cx).as_slice()
 5939                                        == [buffer_entity_id]
 5940                                {
 5941                                    Some(item)
 5942                                } else {
 5943                                    None
 5944                                }
 5945                            });
 5946                    let view = existing_view.or_else(|| {
 5947                        agent_location.buffer.upgrade().and_then(|buffer| {
 5948                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5949                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5950                            })?
 5951                            .to_followable_item_handle(cx)
 5952                        })
 5953                    });
 5954
 5955                    view.map(|view| {
 5956                        entry.insert(FollowerView {
 5957                            view,
 5958                            location: None,
 5959                        })
 5960                    })
 5961                }
 5962            };
 5963
 5964            if let Some(item) = item {
 5965                item.view
 5966                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5967                item.view
 5968                    .update_agent_location(agent_location.position, window, cx);
 5969            }
 5970        } else {
 5971            follower_state.active_view_id = None;
 5972        }
 5973
 5974        self.leader_updated(CollaboratorId::Agent, window, cx);
 5975    }
 5976
 5977    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5978        let mut is_project_item = true;
 5979        let mut update = proto::UpdateActiveView::default();
 5980        if window.is_window_active() {
 5981            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5982
 5983            if let Some(item) = active_item
 5984                && item.item_focus_handle(cx).contains_focused(window, cx)
 5985            {
 5986                let leader_id = self
 5987                    .pane_for(&*item)
 5988                    .and_then(|pane| self.leader_for_pane(&pane));
 5989                let leader_peer_id = match leader_id {
 5990                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5991                    Some(CollaboratorId::Agent) | None => None,
 5992                };
 5993
 5994                if let Some(item) = item.to_followable_item_handle(cx) {
 5995                    let id = item
 5996                        .remote_id(&self.app_state.client, window, cx)
 5997                        .map(|id| id.to_proto());
 5998
 5999                    if let Some(id) = id
 6000                        && let Some(variant) = item.to_state_proto(window, cx)
 6001                    {
 6002                        let view = Some(proto::View {
 6003                            id,
 6004                            leader_id: leader_peer_id,
 6005                            variant: Some(variant),
 6006                            panel_id: panel_id.map(|id| id as i32),
 6007                        });
 6008
 6009                        is_project_item = item.is_project_item(window, cx);
 6010                        update = proto::UpdateActiveView { view };
 6011                    };
 6012                }
 6013            }
 6014        }
 6015
 6016        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 6017        if active_view_id != self.last_active_view_id.as_ref() {
 6018            self.last_active_view_id = active_view_id.cloned();
 6019            self.update_followers(
 6020                is_project_item,
 6021                proto::update_followers::Variant::UpdateActiveView(update),
 6022                window,
 6023                cx,
 6024            );
 6025        }
 6026    }
 6027
 6028    fn active_item_for_followers(
 6029        &self,
 6030        window: &mut Window,
 6031        cx: &mut App,
 6032    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6033        let mut active_item = None;
 6034        let mut panel_id = None;
 6035        for dock in self.all_docks() {
 6036            if dock.focus_handle(cx).contains_focused(window, cx)
 6037                && let Some(panel) = dock.read(cx).active_panel()
 6038                && let Some(pane) = panel.pane(cx)
 6039                && let Some(item) = pane.read(cx).active_item()
 6040            {
 6041                active_item = Some(item);
 6042                panel_id = panel.remote_id();
 6043                break;
 6044            }
 6045        }
 6046
 6047        if active_item.is_none() {
 6048            active_item = self.active_pane().read(cx).active_item();
 6049        }
 6050        (active_item, panel_id)
 6051    }
 6052
 6053    fn update_followers(
 6054        &self,
 6055        project_only: bool,
 6056        update: proto::update_followers::Variant,
 6057        _: &mut Window,
 6058        cx: &mut App,
 6059    ) -> Option<()> {
 6060        // If this update only applies to for followers in the current project,
 6061        // then skip it unless this project is shared. If it applies to all
 6062        // followers, regardless of project, then set `project_id` to none,
 6063        // indicating that it goes to all followers.
 6064        let project_id = if project_only {
 6065            Some(self.project.read(cx).remote_id()?)
 6066        } else {
 6067            None
 6068        };
 6069        self.app_state().workspace_store.update(cx, |store, cx| {
 6070            store.update_followers(project_id, update, cx)
 6071        })
 6072    }
 6073
 6074    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6075        self.follower_states.iter().find_map(|(leader_id, state)| {
 6076            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6077                Some(*leader_id)
 6078            } else {
 6079                None
 6080            }
 6081        })
 6082    }
 6083
 6084    fn leader_updated(
 6085        &mut self,
 6086        leader_id: impl Into<CollaboratorId>,
 6087        window: &mut Window,
 6088        cx: &mut Context<Self>,
 6089    ) -> Option<Box<dyn ItemHandle>> {
 6090        cx.notify();
 6091
 6092        let leader_id = leader_id.into();
 6093        let (panel_id, item) = match leader_id {
 6094            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6095            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6096        };
 6097
 6098        let state = self.follower_states.get(&leader_id)?;
 6099        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6100        let pane;
 6101        if let Some(panel_id) = panel_id {
 6102            pane = self
 6103                .activate_panel_for_proto_id(panel_id, window, cx)?
 6104                .pane(cx)?;
 6105            let state = self.follower_states.get_mut(&leader_id)?;
 6106            state.dock_pane = Some(pane.clone());
 6107        } else {
 6108            pane = state.center_pane.clone();
 6109            let state = self.follower_states.get_mut(&leader_id)?;
 6110            if let Some(dock_pane) = state.dock_pane.take() {
 6111                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6112            }
 6113        }
 6114
 6115        pane.update(cx, |pane, cx| {
 6116            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6117            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6118                pane.activate_item(index, false, false, window, cx);
 6119            } else {
 6120                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6121            }
 6122
 6123            if focus_active_item {
 6124                pane.focus_active_item(window, cx)
 6125            }
 6126        });
 6127
 6128        Some(item)
 6129    }
 6130
 6131    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6132        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6133        let active_view_id = state.active_view_id?;
 6134        Some(
 6135            state
 6136                .items_by_leader_view_id
 6137                .get(&active_view_id)?
 6138                .view
 6139                .boxed_clone(),
 6140        )
 6141    }
 6142
 6143    fn active_item_for_peer(
 6144        &self,
 6145        peer_id: PeerId,
 6146        window: &mut Window,
 6147        cx: &mut Context<Self>,
 6148    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6149        let call = self.active_call()?;
 6150        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6151        let leader_in_this_app;
 6152        let leader_in_this_project;
 6153        match participant.location {
 6154            ParticipantLocation::SharedProject { project_id } => {
 6155                leader_in_this_app = true;
 6156                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6157            }
 6158            ParticipantLocation::UnsharedProject => {
 6159                leader_in_this_app = true;
 6160                leader_in_this_project = false;
 6161            }
 6162            ParticipantLocation::External => {
 6163                leader_in_this_app = false;
 6164                leader_in_this_project = false;
 6165            }
 6166        };
 6167        let state = self.follower_states.get(&peer_id.into())?;
 6168        let mut item_to_activate = None;
 6169        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6170            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6171                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6172            {
 6173                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6174            }
 6175        } else if let Some(shared_screen) =
 6176            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6177        {
 6178            item_to_activate = Some((None, Box::new(shared_screen)));
 6179        }
 6180        item_to_activate
 6181    }
 6182
 6183    fn shared_screen_for_peer(
 6184        &self,
 6185        peer_id: PeerId,
 6186        pane: &Entity<Pane>,
 6187        window: &mut Window,
 6188        cx: &mut App,
 6189    ) -> Option<Entity<SharedScreen>> {
 6190        self.active_call()?
 6191            .create_shared_screen(peer_id, pane, window, cx)
 6192    }
 6193
 6194    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6195        if window.is_window_active() {
 6196            self.update_active_view_for_followers(window, cx);
 6197
 6198            if let Some(database_id) = self.database_id {
 6199                let db = WorkspaceDb::global(cx);
 6200                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6201                    .detach();
 6202            }
 6203        } else {
 6204            for pane in &self.panes {
 6205                pane.update(cx, |pane, cx| {
 6206                    if let Some(item) = pane.active_item() {
 6207                        item.workspace_deactivated(window, cx);
 6208                    }
 6209                    for item in pane.items() {
 6210                        if matches!(
 6211                            item.workspace_settings(cx).autosave,
 6212                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6213                        ) {
 6214                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6215                                .detach_and_log_err(cx);
 6216                        }
 6217                    }
 6218                });
 6219            }
 6220        }
 6221    }
 6222
 6223    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6224        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6225    }
 6226
 6227    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6228        self.active_call.as_ref().map(|(call, _)| call.clone())
 6229    }
 6230
 6231    fn on_active_call_event(
 6232        &mut self,
 6233        event: &ActiveCallEvent,
 6234        window: &mut Window,
 6235        cx: &mut Context<Self>,
 6236    ) {
 6237        match event {
 6238            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6239            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6240                self.leader_updated(participant_id, window, cx);
 6241            }
 6242        }
 6243    }
 6244
 6245    pub fn database_id(&self) -> Option<WorkspaceId> {
 6246        self.database_id
 6247    }
 6248
 6249    #[cfg(any(test, feature = "test-support"))]
 6250    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6251        self.database_id = Some(id);
 6252    }
 6253
 6254    pub fn session_id(&self) -> Option<String> {
 6255        self.session_id.clone()
 6256    }
 6257
 6258    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6259        let Some(display) = window.display(cx) else {
 6260            return Task::ready(());
 6261        };
 6262        let Ok(display_uuid) = display.uuid() else {
 6263            return Task::ready(());
 6264        };
 6265
 6266        let window_bounds = window.inner_window_bounds();
 6267        let database_id = self.database_id;
 6268        let has_paths = !self.root_paths(cx).is_empty();
 6269        let db = WorkspaceDb::global(cx);
 6270        let kvp = db::kvp::KeyValueStore::global(cx);
 6271
 6272        cx.background_executor().spawn(async move {
 6273            if !has_paths {
 6274                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6275                    .await
 6276                    .log_err();
 6277            }
 6278            if let Some(database_id) = database_id {
 6279                db.set_window_open_status(
 6280                    database_id,
 6281                    SerializedWindowBounds(window_bounds),
 6282                    display_uuid,
 6283                )
 6284                .await
 6285                .log_err();
 6286            } else {
 6287                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6288                    .await
 6289                    .log_err();
 6290            }
 6291        })
 6292    }
 6293
 6294    /// Bypass the 200ms serialization throttle and write workspace state to
 6295    /// the DB immediately. Returns a task the caller can await to ensure the
 6296    /// write completes. Used by the quit handler so the most recent state
 6297    /// isn't lost to a pending throttle timer when the process exits.
 6298    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6299        self._schedule_serialize_workspace.take();
 6300        self._serialize_workspace_task.take();
 6301        self.bounds_save_task_queued.take();
 6302
 6303        let bounds_task = self.save_window_bounds(window, cx);
 6304        let serialize_task = self.serialize_workspace_internal(window, cx);
 6305        cx.spawn(async move |_| {
 6306            bounds_task.await;
 6307            serialize_task.await;
 6308        })
 6309    }
 6310
 6311    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6312        let project = self.project().read(cx);
 6313        project
 6314            .visible_worktrees(cx)
 6315            .map(|worktree| worktree.read(cx).abs_path())
 6316            .collect::<Vec<_>>()
 6317    }
 6318
 6319    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6320        match member {
 6321            Member::Axis(PaneAxis { members, .. }) => {
 6322                for child in members.iter() {
 6323                    self.remove_panes(child.clone(), window, cx)
 6324                }
 6325            }
 6326            Member::Pane(pane) => {
 6327                self.force_remove_pane(&pane, &None, window, cx);
 6328            }
 6329        }
 6330    }
 6331
 6332    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6333        self.session_id.take();
 6334        self.serialize_workspace_internal(window, cx)
 6335    }
 6336
 6337    fn force_remove_pane(
 6338        &mut self,
 6339        pane: &Entity<Pane>,
 6340        focus_on: &Option<Entity<Pane>>,
 6341        window: &mut Window,
 6342        cx: &mut Context<Workspace>,
 6343    ) {
 6344        self.panes.retain(|p| p != pane);
 6345        if let Some(focus_on) = focus_on {
 6346            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6347        } else if self.active_pane() == pane {
 6348            self.panes
 6349                .last()
 6350                .unwrap()
 6351                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6352        }
 6353        if self.last_active_center_pane == Some(pane.downgrade()) {
 6354            self.last_active_center_pane = None;
 6355        }
 6356        cx.notify();
 6357    }
 6358
 6359    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6360        if self._schedule_serialize_workspace.is_none() {
 6361            self._schedule_serialize_workspace =
 6362                Some(cx.spawn_in(window, async move |this, cx| {
 6363                    cx.background_executor()
 6364                        .timer(SERIALIZATION_THROTTLE_TIME)
 6365                        .await;
 6366                    this.update_in(cx, |this, window, cx| {
 6367                        this._serialize_workspace_task =
 6368                            Some(this.serialize_workspace_internal(window, cx));
 6369                        this._schedule_serialize_workspace.take();
 6370                    })
 6371                    .log_err();
 6372                }));
 6373        }
 6374    }
 6375
 6376    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6377        let Some(database_id) = self.database_id() else {
 6378            return Task::ready(());
 6379        };
 6380
 6381        fn serialize_pane_handle(
 6382            pane_handle: &Entity<Pane>,
 6383            window: &mut Window,
 6384            cx: &mut App,
 6385        ) -> SerializedPane {
 6386            let (items, active, pinned_count) = {
 6387                let pane = pane_handle.read(cx);
 6388                let active_item_id = pane.active_item().map(|item| item.item_id());
 6389                (
 6390                    pane.items()
 6391                        .filter_map(|handle| {
 6392                            let handle = handle.to_serializable_item_handle(cx)?;
 6393
 6394                            Some(SerializedItem {
 6395                                kind: Arc::from(handle.serialized_item_kind()),
 6396                                item_id: handle.item_id().as_u64(),
 6397                                active: Some(handle.item_id()) == active_item_id,
 6398                                preview: pane.is_active_preview_item(handle.item_id()),
 6399                            })
 6400                        })
 6401                        .collect::<Vec<_>>(),
 6402                    pane.has_focus(window, cx),
 6403                    pane.pinned_count(),
 6404                )
 6405            };
 6406
 6407            SerializedPane::new(items, active, pinned_count)
 6408        }
 6409
 6410        fn build_serialized_pane_group(
 6411            pane_group: &Member,
 6412            window: &mut Window,
 6413            cx: &mut App,
 6414        ) -> SerializedPaneGroup {
 6415            match pane_group {
 6416                Member::Axis(PaneAxis {
 6417                    axis,
 6418                    members,
 6419                    flexes,
 6420                    bounding_boxes: _,
 6421                }) => SerializedPaneGroup::Group {
 6422                    axis: SerializedAxis(*axis),
 6423                    children: members
 6424                        .iter()
 6425                        .map(|member| build_serialized_pane_group(member, window, cx))
 6426                        .collect::<Vec<_>>(),
 6427                    flexes: Some(flexes.lock().clone()),
 6428                },
 6429                Member::Pane(pane_handle) => {
 6430                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6431                }
 6432            }
 6433        }
 6434
 6435        fn build_serialized_docks(
 6436            this: &Workspace,
 6437            window: &mut Window,
 6438            cx: &mut App,
 6439        ) -> DockStructure {
 6440            this.capture_dock_state(window, cx)
 6441        }
 6442
 6443        match self.workspace_location(cx) {
 6444            WorkspaceLocation::Location(location, paths) => {
 6445                let breakpoints = self.project.update(cx, |project, cx| {
 6446                    project
 6447                        .breakpoint_store()
 6448                        .read(cx)
 6449                        .all_source_breakpoints(cx)
 6450                });
 6451                let user_toolchains = self
 6452                    .project
 6453                    .read(cx)
 6454                    .user_toolchains(cx)
 6455                    .unwrap_or_default();
 6456
 6457                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6458                let docks = build_serialized_docks(self, window, cx);
 6459                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6460
 6461                let serialized_workspace = SerializedWorkspace {
 6462                    id: database_id,
 6463                    location,
 6464                    paths,
 6465                    center_group,
 6466                    window_bounds,
 6467                    display: Default::default(),
 6468                    docks,
 6469                    centered_layout: self.centered_layout,
 6470                    session_id: self.session_id.clone(),
 6471                    breakpoints,
 6472                    window_id: Some(window.window_handle().window_id().as_u64()),
 6473                    user_toolchains,
 6474                };
 6475
 6476                let db = WorkspaceDb::global(cx);
 6477                window.spawn(cx, async move |_| {
 6478                    db.save_workspace(serialized_workspace).await;
 6479                })
 6480            }
 6481            WorkspaceLocation::DetachFromSession => {
 6482                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6483                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6484                // Save dock state for empty local workspaces
 6485                let docks = build_serialized_docks(self, window, cx);
 6486                let db = WorkspaceDb::global(cx);
 6487                let kvp = db::kvp::KeyValueStore::global(cx);
 6488                window.spawn(cx, async move |_| {
 6489                    db.set_window_open_status(
 6490                        database_id,
 6491                        window_bounds,
 6492                        display.unwrap_or_default(),
 6493                    )
 6494                    .await
 6495                    .log_err();
 6496                    db.set_session_id(database_id, None).await.log_err();
 6497                    persistence::write_default_dock_state(&kvp, docks)
 6498                        .await
 6499                        .log_err();
 6500                })
 6501            }
 6502            WorkspaceLocation::None => {
 6503                // Save dock state for empty non-local workspaces
 6504                let docks = build_serialized_docks(self, window, cx);
 6505                let kvp = db::kvp::KeyValueStore::global(cx);
 6506                window.spawn(cx, async move |_| {
 6507                    persistence::write_default_dock_state(&kvp, docks)
 6508                        .await
 6509                        .log_err();
 6510                })
 6511            }
 6512        }
 6513    }
 6514
 6515    fn has_any_items_open(&self, cx: &App) -> bool {
 6516        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6517    }
 6518
 6519    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6520        let paths = PathList::new(&self.root_paths(cx));
 6521        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6522            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6523        } else if self.project.read(cx).is_local() {
 6524            if !paths.is_empty() || self.has_any_items_open(cx) {
 6525                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6526            } else {
 6527                WorkspaceLocation::DetachFromSession
 6528            }
 6529        } else {
 6530            WorkspaceLocation::None
 6531        }
 6532    }
 6533
 6534    fn update_history(&self, cx: &mut App) {
 6535        let Some(id) = self.database_id() else {
 6536            return;
 6537        };
 6538        if !self.project.read(cx).is_local() {
 6539            return;
 6540        }
 6541        if let Some(manager) = HistoryManager::global(cx) {
 6542            let paths = PathList::new(&self.root_paths(cx));
 6543            manager.update(cx, |this, cx| {
 6544                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6545            });
 6546        }
 6547    }
 6548
 6549    async fn serialize_items(
 6550        this: &WeakEntity<Self>,
 6551        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6552        cx: &mut AsyncWindowContext,
 6553    ) -> Result<()> {
 6554        const CHUNK_SIZE: usize = 200;
 6555
 6556        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6557
 6558        while let Some(items_received) = serializable_items.next().await {
 6559            let unique_items =
 6560                items_received
 6561                    .into_iter()
 6562                    .fold(HashMap::default(), |mut acc, item| {
 6563                        acc.entry(item.item_id()).or_insert(item);
 6564                        acc
 6565                    });
 6566
 6567            // We use into_iter() here so that the references to the items are moved into
 6568            // the tasks and not kept alive while we're sleeping.
 6569            for (_, item) in unique_items.into_iter() {
 6570                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6571                    item.serialize(workspace, false, window, cx)
 6572                }) {
 6573                    cx.background_spawn(async move { task.await.log_err() })
 6574                        .detach();
 6575                }
 6576            }
 6577
 6578            cx.background_executor()
 6579                .timer(SERIALIZATION_THROTTLE_TIME)
 6580                .await;
 6581        }
 6582
 6583        Ok(())
 6584    }
 6585
 6586    pub(crate) fn enqueue_item_serialization(
 6587        &mut self,
 6588        item: Box<dyn SerializableItemHandle>,
 6589    ) -> Result<()> {
 6590        self.serializable_items_tx
 6591            .unbounded_send(item)
 6592            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6593    }
 6594
 6595    pub(crate) fn load_workspace(
 6596        serialized_workspace: SerializedWorkspace,
 6597        paths_to_open: Vec<Option<ProjectPath>>,
 6598        window: &mut Window,
 6599        cx: &mut Context<Workspace>,
 6600    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6601        cx.spawn_in(window, async move |workspace, cx| {
 6602            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6603
 6604            let mut center_group = None;
 6605            let mut center_items = None;
 6606
 6607            // Traverse the splits tree and add to things
 6608            if let Some((group, active_pane, items)) = serialized_workspace
 6609                .center_group
 6610                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6611                .await
 6612            {
 6613                center_items = Some(items);
 6614                center_group = Some((group, active_pane))
 6615            }
 6616
 6617            let mut items_by_project_path = HashMap::default();
 6618            let mut item_ids_by_kind = HashMap::default();
 6619            let mut all_deserialized_items = Vec::default();
 6620            cx.update(|_, cx| {
 6621                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6622                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6623                        item_ids_by_kind
 6624                            .entry(serializable_item_handle.serialized_item_kind())
 6625                            .or_insert(Vec::new())
 6626                            .push(item.item_id().as_u64() as ItemId);
 6627                    }
 6628
 6629                    if let Some(project_path) = item.project_path(cx) {
 6630                        items_by_project_path.insert(project_path, item.clone());
 6631                    }
 6632                    all_deserialized_items.push(item);
 6633                }
 6634            })?;
 6635
 6636            let opened_items = paths_to_open
 6637                .into_iter()
 6638                .map(|path_to_open| {
 6639                    path_to_open
 6640                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6641                })
 6642                .collect::<Vec<_>>();
 6643
 6644            // Remove old panes from workspace panes list
 6645            workspace.update_in(cx, |workspace, window, cx| {
 6646                if let Some((center_group, active_pane)) = center_group {
 6647                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6648
 6649                    // Swap workspace center group
 6650                    workspace.center = PaneGroup::with_root(center_group);
 6651                    workspace.center.set_is_center(true);
 6652                    workspace.center.mark_positions(cx);
 6653
 6654                    if let Some(active_pane) = active_pane {
 6655                        workspace.set_active_pane(&active_pane, window, cx);
 6656                        cx.focus_self(window);
 6657                    } else {
 6658                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6659                    }
 6660                }
 6661
 6662                let docks = serialized_workspace.docks;
 6663
 6664                for (dock, serialized_dock) in [
 6665                    (&mut workspace.right_dock, docks.right),
 6666                    (&mut workspace.left_dock, docks.left),
 6667                    (&mut workspace.bottom_dock, docks.bottom),
 6668                ]
 6669                .iter_mut()
 6670                {
 6671                    dock.update(cx, |dock, cx| {
 6672                        dock.serialized_dock = Some(serialized_dock.clone());
 6673                        dock.restore_state(window, cx);
 6674                    });
 6675                }
 6676
 6677                cx.notify();
 6678            })?;
 6679
 6680            let _ = project
 6681                .update(cx, |project, cx| {
 6682                    project
 6683                        .breakpoint_store()
 6684                        .update(cx, |breakpoint_store, cx| {
 6685                            breakpoint_store
 6686                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6687                        })
 6688                })
 6689                .await;
 6690
 6691            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6692            // after loading the items, we might have different items and in order to avoid
 6693            // the database filling up, we delete items that haven't been loaded now.
 6694            //
 6695            // The items that have been loaded, have been saved after they've been added to the workspace.
 6696            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6697                item_ids_by_kind
 6698                    .into_iter()
 6699                    .map(|(item_kind, loaded_items)| {
 6700                        SerializableItemRegistry::cleanup(
 6701                            item_kind,
 6702                            serialized_workspace.id,
 6703                            loaded_items,
 6704                            window,
 6705                            cx,
 6706                        )
 6707                        .log_err()
 6708                    })
 6709                    .collect::<Vec<_>>()
 6710            })?;
 6711
 6712            futures::future::join_all(clean_up_tasks).await;
 6713
 6714            workspace
 6715                .update_in(cx, |workspace, window, cx| {
 6716                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6717                    workspace.serialize_workspace_internal(window, cx).detach();
 6718
 6719                    // Ensure that we mark the window as edited if we did load dirty items
 6720                    workspace.update_window_edited(window, cx);
 6721                })
 6722                .ok();
 6723
 6724            Ok(opened_items)
 6725        })
 6726    }
 6727
 6728    pub fn key_context(&self, cx: &App) -> KeyContext {
 6729        let mut context = KeyContext::new_with_defaults();
 6730        context.add("Workspace");
 6731        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6732        if let Some(status) = self
 6733            .debugger_provider
 6734            .as_ref()
 6735            .and_then(|provider| provider.active_thread_state(cx))
 6736        {
 6737            match status {
 6738                ThreadStatus::Running | ThreadStatus::Stepping => {
 6739                    context.add("debugger_running");
 6740                }
 6741                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6742                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6743            }
 6744        }
 6745
 6746        if self.left_dock.read(cx).is_open() {
 6747            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6748                context.set("left_dock", active_panel.panel_key());
 6749            }
 6750        }
 6751
 6752        if self.right_dock.read(cx).is_open() {
 6753            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6754                context.set("right_dock", active_panel.panel_key());
 6755            }
 6756        }
 6757
 6758        if self.bottom_dock.read(cx).is_open() {
 6759            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6760                context.set("bottom_dock", active_panel.panel_key());
 6761            }
 6762        }
 6763
 6764        context
 6765    }
 6766
 6767    /// Multiworkspace uses this to add workspace action handling to itself
 6768    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6769        self.add_workspace_actions_listeners(div, window, cx)
 6770            .on_action(cx.listener(
 6771                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6772                    for action in &action_sequence.0 {
 6773                        window.dispatch_action(action.boxed_clone(), cx);
 6774                    }
 6775                },
 6776            ))
 6777            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6778            .on_action(cx.listener(Self::close_all_items_and_panes))
 6779            .on_action(cx.listener(Self::close_item_in_all_panes))
 6780            .on_action(cx.listener(Self::save_all))
 6781            .on_action(cx.listener(Self::send_keystrokes))
 6782            .on_action(cx.listener(Self::add_folder_to_project))
 6783            .on_action(cx.listener(Self::follow_next_collaborator))
 6784            .on_action(cx.listener(Self::activate_pane_at_index))
 6785            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6786            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6787            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6788            .on_action(cx.listener(Self::toggle_theme_mode))
 6789            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6790                let pane = workspace.active_pane().clone();
 6791                workspace.unfollow_in_pane(&pane, window, cx);
 6792            }))
 6793            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6794                workspace
 6795                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6796                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6797            }))
 6798            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6799                workspace
 6800                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6801                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6802            }))
 6803            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6804                workspace
 6805                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6806                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6807            }))
 6808            .on_action(
 6809                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6810                    workspace.activate_previous_pane(window, cx)
 6811                }),
 6812            )
 6813            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6814                workspace.activate_next_pane(window, cx)
 6815            }))
 6816            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6817                workspace.activate_last_pane(window, cx)
 6818            }))
 6819            .on_action(
 6820                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6821                    workspace.activate_next_window(cx)
 6822                }),
 6823            )
 6824            .on_action(
 6825                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6826                    workspace.activate_previous_window(cx)
 6827                }),
 6828            )
 6829            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6830                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6831            }))
 6832            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6833                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6834            }))
 6835            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6836                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6837            }))
 6838            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6839                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6840            }))
 6841            .on_action(cx.listener(
 6842                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6843                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6844                },
 6845            ))
 6846            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6847                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6848            }))
 6849            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6850                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6851            }))
 6852            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6853                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6854            }))
 6855            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6856                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6857            }))
 6858            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6859                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6860                    SplitDirection::Down,
 6861                    SplitDirection::Up,
 6862                    SplitDirection::Right,
 6863                    SplitDirection::Left,
 6864                ];
 6865                for dir in DIRECTION_PRIORITY {
 6866                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6867                        workspace.swap_pane_in_direction(dir, cx);
 6868                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6869                        break;
 6870                    }
 6871                }
 6872            }))
 6873            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6874                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6875            }))
 6876            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6877                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6878            }))
 6879            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6880                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6881            }))
 6882            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6883                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6884            }))
 6885            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6886                this.toggle_dock(DockPosition::Left, window, cx);
 6887            }))
 6888            .on_action(cx.listener(
 6889                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6890                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6891                },
 6892            ))
 6893            .on_action(cx.listener(
 6894                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6895                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6896                },
 6897            ))
 6898            .on_action(cx.listener(
 6899                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6900                    if !workspace.close_active_dock(window, cx) {
 6901                        cx.propagate();
 6902                    }
 6903                },
 6904            ))
 6905            .on_action(
 6906                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6907                    workspace.close_all_docks(window, cx);
 6908                }),
 6909            )
 6910            .on_action(cx.listener(Self::toggle_all_docks))
 6911            .on_action(cx.listener(
 6912                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6913                    workspace.clear_all_notifications(cx);
 6914                },
 6915            ))
 6916            .on_action(cx.listener(
 6917                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6918                    workspace.clear_navigation_history(window, cx);
 6919                },
 6920            ))
 6921            .on_action(cx.listener(
 6922                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6923                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6924                        workspace.suppress_notification(&notification_id, cx);
 6925                    }
 6926                },
 6927            ))
 6928            .on_action(cx.listener(
 6929                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6930                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6931                },
 6932            ))
 6933            .on_action(
 6934                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6935                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6936                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6937                            trusted_worktrees.clear_trusted_paths()
 6938                        });
 6939                        let db = WorkspaceDb::global(cx);
 6940                        cx.spawn(async move |_, cx| {
 6941                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 6942                                cx.update(|cx| reload(cx));
 6943                            }
 6944                        })
 6945                        .detach();
 6946                    }
 6947                }),
 6948            )
 6949            .on_action(cx.listener(
 6950                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6951                    workspace.reopen_closed_item(window, cx).detach();
 6952                },
 6953            ))
 6954            .on_action(cx.listener(
 6955                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6956                    for dock in workspace.all_docks() {
 6957                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6958                            let panel = dock.read(cx).active_panel().cloned();
 6959                            if let Some(panel) = panel {
 6960                                dock.update(cx, |dock, cx| {
 6961                                    dock.set_panel_size_state(
 6962                                        panel.as_ref(),
 6963                                        dock::PanelSizeState::default(),
 6964                                        cx,
 6965                                    );
 6966                                });
 6967                            }
 6968                            return;
 6969                        }
 6970                    }
 6971                },
 6972            ))
 6973            .on_action(cx.listener(
 6974                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 6975                    for dock in workspace.all_docks() {
 6976                        let panel = dock.read(cx).visible_panel().cloned();
 6977                        if let Some(panel) = panel {
 6978                            dock.update(cx, |dock, cx| {
 6979                                dock.set_panel_size_state(
 6980                                    panel.as_ref(),
 6981                                    dock::PanelSizeState::default(),
 6982                                    cx,
 6983                                );
 6984                            });
 6985                        }
 6986                    }
 6987                },
 6988            ))
 6989            .on_action(cx.listener(
 6990                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6991                    adjust_active_dock_size_by_px(
 6992                        px_with_ui_font_fallback(act.px, cx),
 6993                        workspace,
 6994                        window,
 6995                        cx,
 6996                    );
 6997                },
 6998            ))
 6999            .on_action(cx.listener(
 7000                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 7001                    adjust_active_dock_size_by_px(
 7002                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7003                        workspace,
 7004                        window,
 7005                        cx,
 7006                    );
 7007                },
 7008            ))
 7009            .on_action(cx.listener(
 7010                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 7011                    adjust_open_docks_size_by_px(
 7012                        px_with_ui_font_fallback(act.px, cx),
 7013                        workspace,
 7014                        window,
 7015                        cx,
 7016                    );
 7017                },
 7018            ))
 7019            .on_action(cx.listener(
 7020                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 7021                    adjust_open_docks_size_by_px(
 7022                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7023                        workspace,
 7024                        window,
 7025                        cx,
 7026                    );
 7027                },
 7028            ))
 7029            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7030            .on_action(cx.listener(
 7031                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 7032                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7033                        let dock = active_dock.read(cx);
 7034                        if let Some(active_panel) = dock.active_panel() {
 7035                            if active_panel.pane(cx).is_none() {
 7036                                let mut recent_pane: Option<Entity<Pane>> = None;
 7037                                let mut recent_timestamp = 0;
 7038                                for pane_handle in workspace.panes() {
 7039                                    let pane = pane_handle.read(cx);
 7040                                    for entry in pane.activation_history() {
 7041                                        if entry.timestamp > recent_timestamp {
 7042                                            recent_timestamp = entry.timestamp;
 7043                                            recent_pane = Some(pane_handle.clone());
 7044                                        }
 7045                                    }
 7046                                }
 7047
 7048                                if let Some(pane) = recent_pane {
 7049                                    pane.update(cx, |pane, cx| {
 7050                                        let current_index = pane.active_item_index();
 7051                                        let items_len = pane.items_len();
 7052                                        if items_len > 0 {
 7053                                            let next_index = if current_index + 1 < items_len {
 7054                                                current_index + 1
 7055                                            } else {
 7056                                                0
 7057                                            };
 7058                                            pane.activate_item(
 7059                                                next_index, false, false, window, cx,
 7060                                            );
 7061                                        }
 7062                                    });
 7063                                    return;
 7064                                }
 7065                            }
 7066                        }
 7067                    }
 7068                    cx.propagate();
 7069                },
 7070            ))
 7071            .on_action(cx.listener(
 7072                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 7073                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7074                        let dock = active_dock.read(cx);
 7075                        if let Some(active_panel) = dock.active_panel() {
 7076                            if active_panel.pane(cx).is_none() {
 7077                                let mut recent_pane: Option<Entity<Pane>> = None;
 7078                                let mut recent_timestamp = 0;
 7079                                for pane_handle in workspace.panes() {
 7080                                    let pane = pane_handle.read(cx);
 7081                                    for entry in pane.activation_history() {
 7082                                        if entry.timestamp > recent_timestamp {
 7083                                            recent_timestamp = entry.timestamp;
 7084                                            recent_pane = Some(pane_handle.clone());
 7085                                        }
 7086                                    }
 7087                                }
 7088
 7089                                if let Some(pane) = recent_pane {
 7090                                    pane.update(cx, |pane, cx| {
 7091                                        let current_index = pane.active_item_index();
 7092                                        let items_len = pane.items_len();
 7093                                        if items_len > 0 {
 7094                                            let prev_index = if current_index > 0 {
 7095                                                current_index - 1
 7096                                            } else {
 7097                                                items_len.saturating_sub(1)
 7098                                            };
 7099                                            pane.activate_item(
 7100                                                prev_index, false, false, window, cx,
 7101                                            );
 7102                                        }
 7103                                    });
 7104                                    return;
 7105                                }
 7106                            }
 7107                        }
 7108                    }
 7109                    cx.propagate();
 7110                },
 7111            ))
 7112            .on_action(cx.listener(
 7113                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7114                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7115                        let dock = active_dock.read(cx);
 7116                        if let Some(active_panel) = dock.active_panel() {
 7117                            if active_panel.pane(cx).is_none() {
 7118                                let active_pane = workspace.active_pane().clone();
 7119                                active_pane.update(cx, |pane, cx| {
 7120                                    pane.close_active_item(action, window, cx)
 7121                                        .detach_and_log_err(cx);
 7122                                });
 7123                                return;
 7124                            }
 7125                        }
 7126                    }
 7127                    cx.propagate();
 7128                },
 7129            ))
 7130            .on_action(
 7131                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7132                    let pane = workspace.active_pane().clone();
 7133                    if let Some(item) = pane.read(cx).active_item() {
 7134                        item.toggle_read_only(window, cx);
 7135                    }
 7136                }),
 7137            )
 7138            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7139                workspace.focus_center_pane(window, cx);
 7140            }))
 7141            .on_action(cx.listener(Workspace::cancel))
 7142    }
 7143
 7144    #[cfg(any(test, feature = "test-support"))]
 7145    pub fn set_random_database_id(&mut self) {
 7146        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7147    }
 7148
 7149    #[cfg(any(test, feature = "test-support"))]
 7150    pub(crate) fn test_new(
 7151        project: Entity<Project>,
 7152        window: &mut Window,
 7153        cx: &mut Context<Self>,
 7154    ) -> Self {
 7155        use node_runtime::NodeRuntime;
 7156        use session::Session;
 7157
 7158        let client = project.read(cx).client();
 7159        let user_store = project.read(cx).user_store();
 7160        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7161        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7162        window.activate_window();
 7163        let app_state = Arc::new(AppState {
 7164            languages: project.read(cx).languages().clone(),
 7165            workspace_store,
 7166            client,
 7167            user_store,
 7168            fs: project.read(cx).fs().clone(),
 7169            build_window_options: |_, _| Default::default(),
 7170            node_runtime: NodeRuntime::unavailable(),
 7171            session,
 7172        });
 7173        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7174        workspace
 7175            .active_pane
 7176            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7177        workspace
 7178    }
 7179
 7180    pub fn register_action<A: Action>(
 7181        &mut self,
 7182        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7183    ) -> &mut Self {
 7184        let callback = Arc::new(callback);
 7185
 7186        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7187            let callback = callback.clone();
 7188            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7189                (callback)(workspace, event, window, cx)
 7190            }))
 7191        }));
 7192        self
 7193    }
 7194    pub fn register_action_renderer(
 7195        &mut self,
 7196        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7197    ) -> &mut Self {
 7198        self.workspace_actions.push(Box::new(callback));
 7199        self
 7200    }
 7201
 7202    fn add_workspace_actions_listeners(
 7203        &self,
 7204        mut div: Div,
 7205        window: &mut Window,
 7206        cx: &mut Context<Self>,
 7207    ) -> Div {
 7208        for action in self.workspace_actions.iter() {
 7209            div = (action)(div, self, window, cx)
 7210        }
 7211        div
 7212    }
 7213
 7214    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7215        self.modal_layer.read(cx).has_active_modal()
 7216    }
 7217
 7218    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7219        self.modal_layer
 7220            .read(cx)
 7221            .is_active_modal_command_palette(cx)
 7222    }
 7223
 7224    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7225        self.modal_layer.read(cx).active_modal()
 7226    }
 7227
 7228    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7229    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7230    /// If no modal is active, the new modal will be shown.
 7231    ///
 7232    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7233    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7234    /// will not be shown.
 7235    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7236    where
 7237        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7238    {
 7239        self.modal_layer.update(cx, |modal_layer, cx| {
 7240            modal_layer.toggle_modal(window, cx, build)
 7241        })
 7242    }
 7243
 7244    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7245        self.modal_layer
 7246            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7247    }
 7248
 7249    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7250        self.toast_layer
 7251            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7252    }
 7253
 7254    pub fn toggle_centered_layout(
 7255        &mut self,
 7256        _: &ToggleCenteredLayout,
 7257        _: &mut Window,
 7258        cx: &mut Context<Self>,
 7259    ) {
 7260        self.centered_layout = !self.centered_layout;
 7261        if let Some(database_id) = self.database_id() {
 7262            let db = WorkspaceDb::global(cx);
 7263            let centered_layout = self.centered_layout;
 7264            cx.background_spawn(async move {
 7265                db.set_centered_layout(database_id, centered_layout).await
 7266            })
 7267            .detach_and_log_err(cx);
 7268        }
 7269        cx.notify();
 7270    }
 7271
 7272    fn adjust_padding(padding: Option<f32>) -> f32 {
 7273        padding
 7274            .unwrap_or(CenteredPaddingSettings::default().0)
 7275            .clamp(
 7276                CenteredPaddingSettings::MIN_PADDING,
 7277                CenteredPaddingSettings::MAX_PADDING,
 7278            )
 7279    }
 7280
 7281    fn render_dock(
 7282        &self,
 7283        position: DockPosition,
 7284        dock: &Entity<Dock>,
 7285        window: &mut Window,
 7286        cx: &mut App,
 7287    ) -> Option<Div> {
 7288        if self.zoomed_position == Some(position) {
 7289            return None;
 7290        }
 7291
 7292        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7293            let pane = panel.pane(cx)?;
 7294            let follower_states = &self.follower_states;
 7295            leader_border_for_pane(follower_states, &pane, window, cx)
 7296        });
 7297
 7298        let mut container = div()
 7299            .flex()
 7300            .overflow_hidden()
 7301            .flex_none()
 7302            .child(dock.clone())
 7303            .children(leader_border);
 7304
 7305        // Apply sizing only when the dock is open. When closed the dock is still
 7306        // included in the element tree so its focus handle remains mounted — without
 7307        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7308        let dock = dock.read(cx);
 7309        if let Some(panel) = dock.visible_panel() {
 7310            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7311            if position.axis() == Axis::Horizontal {
 7312                let use_flexible = panel.has_flexible_size(window, cx);
 7313                let flex_grow = if use_flexible {
 7314                    size_state
 7315                        .and_then(|state| state.flex)
 7316                        .or_else(|| self.default_dock_flex(position))
 7317                } else {
 7318                    None
 7319                };
 7320                if let Some(grow) = flex_grow {
 7321                    let grow = grow.max(0.001);
 7322                    let style = container.style();
 7323                    style.flex_grow = Some(grow);
 7324                    style.flex_shrink = Some(1.0);
 7325                    style.flex_basis = Some(relative(0.).into());
 7326                } else {
 7327                    let size = size_state
 7328                        .and_then(|state| state.size)
 7329                        .unwrap_or_else(|| panel.default_size(window, cx));
 7330                    container = container.w(size);
 7331                }
 7332            } else {
 7333                let size = size_state
 7334                    .and_then(|state| state.size)
 7335                    .unwrap_or_else(|| panel.default_size(window, cx));
 7336                container = container.h(size);
 7337            }
 7338        }
 7339
 7340        Some(container)
 7341    }
 7342
 7343    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7344        window
 7345            .root::<MultiWorkspace>()
 7346            .flatten()
 7347            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7348    }
 7349
 7350    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7351        self.zoomed.as_ref()
 7352    }
 7353
 7354    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7355        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7356            return;
 7357        };
 7358        let windows = cx.windows();
 7359        let next_window =
 7360            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7361                || {
 7362                    windows
 7363                        .iter()
 7364                        .cycle()
 7365                        .skip_while(|window| window.window_id() != current_window_id)
 7366                        .nth(1)
 7367                },
 7368            );
 7369
 7370        if let Some(window) = next_window {
 7371            window
 7372                .update(cx, |_, window, _| window.activate_window())
 7373                .ok();
 7374        }
 7375    }
 7376
 7377    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7378        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7379            return;
 7380        };
 7381        let windows = cx.windows();
 7382        let prev_window =
 7383            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7384                || {
 7385                    windows
 7386                        .iter()
 7387                        .rev()
 7388                        .cycle()
 7389                        .skip_while(|window| window.window_id() != current_window_id)
 7390                        .nth(1)
 7391                },
 7392            );
 7393
 7394        if let Some(window) = prev_window {
 7395            window
 7396                .update(cx, |_, window, _| window.activate_window())
 7397                .ok();
 7398        }
 7399    }
 7400
 7401    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7402        if cx.stop_active_drag(window) {
 7403        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7404            dismiss_app_notification(&notification_id, cx);
 7405        } else {
 7406            cx.propagate();
 7407        }
 7408    }
 7409
 7410    fn resize_dock(
 7411        &mut self,
 7412        dock_pos: DockPosition,
 7413        new_size: Pixels,
 7414        window: &mut Window,
 7415        cx: &mut Context<Self>,
 7416    ) {
 7417        match dock_pos {
 7418            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7419            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7420            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7421        }
 7422    }
 7423
 7424    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7425        let workspace_width = self.bounds.size.width;
 7426        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7427
 7428        self.right_dock.read_with(cx, |right_dock, cx| {
 7429            let right_dock_size = right_dock
 7430                .stored_active_panel_size(window, cx)
 7431                .unwrap_or(Pixels::ZERO);
 7432            if right_dock_size + size > workspace_width {
 7433                size = workspace_width - right_dock_size
 7434            }
 7435        });
 7436
 7437        let flex_grow = self.dock_flex_for_size(DockPosition::Left, size, window, cx);
 7438        self.left_dock.update(cx, |left_dock, cx| {
 7439            if WorkspaceSettings::get_global(cx)
 7440                .resize_all_panels_in_dock
 7441                .contains(&DockPosition::Left)
 7442            {
 7443                left_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7444            } else {
 7445                left_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7446            }
 7447        });
 7448    }
 7449
 7450    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7451        let workspace_width = self.bounds.size.width;
 7452        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7453        self.left_dock.read_with(cx, |left_dock, cx| {
 7454            let left_dock_size = left_dock
 7455                .stored_active_panel_size(window, cx)
 7456                .unwrap_or(Pixels::ZERO);
 7457            if left_dock_size + size > workspace_width {
 7458                size = workspace_width - left_dock_size
 7459            }
 7460        });
 7461        let flex_grow = self.dock_flex_for_size(DockPosition::Right, size, window, cx);
 7462        self.right_dock.update(cx, |right_dock, cx| {
 7463            if WorkspaceSettings::get_global(cx)
 7464                .resize_all_panels_in_dock
 7465                .contains(&DockPosition::Right)
 7466            {
 7467                right_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7468            } else {
 7469                right_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7470            }
 7471        });
 7472    }
 7473
 7474    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7475        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7476        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7477            if WorkspaceSettings::get_global(cx)
 7478                .resize_all_panels_in_dock
 7479                .contains(&DockPosition::Bottom)
 7480            {
 7481                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7482            } else {
 7483                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7484            }
 7485        });
 7486    }
 7487
 7488    fn toggle_edit_predictions_all_files(
 7489        &mut self,
 7490        _: &ToggleEditPrediction,
 7491        _window: &mut Window,
 7492        cx: &mut Context<Self>,
 7493    ) {
 7494        let fs = self.project().read(cx).fs().clone();
 7495        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7496        update_settings_file(fs, cx, move |file, _| {
 7497            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7498        });
 7499    }
 7500
 7501    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7502        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7503        let next_mode = match current_mode {
 7504            Some(theme::ThemeAppearanceMode::Light) => theme::ThemeAppearanceMode::Dark,
 7505            Some(theme::ThemeAppearanceMode::Dark) => theme::ThemeAppearanceMode::Light,
 7506            Some(theme::ThemeAppearanceMode::System) | None => match cx.theme().appearance() {
 7507                theme::Appearance::Light => theme::ThemeAppearanceMode::Dark,
 7508                theme::Appearance::Dark => theme::ThemeAppearanceMode::Light,
 7509            },
 7510        };
 7511
 7512        let fs = self.project().read(cx).fs().clone();
 7513        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7514            theme::set_mode(settings, next_mode);
 7515        });
 7516    }
 7517
 7518    pub fn show_worktree_trust_security_modal(
 7519        &mut self,
 7520        toggle: bool,
 7521        window: &mut Window,
 7522        cx: &mut Context<Self>,
 7523    ) {
 7524        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7525            if toggle {
 7526                security_modal.update(cx, |security_modal, cx| {
 7527                    security_modal.dismiss(cx);
 7528                })
 7529            } else {
 7530                security_modal.update(cx, |security_modal, cx| {
 7531                    security_modal.refresh_restricted_paths(cx);
 7532                });
 7533            }
 7534        } else {
 7535            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7536                .map(|trusted_worktrees| {
 7537                    trusted_worktrees
 7538                        .read(cx)
 7539                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7540                })
 7541                .unwrap_or(false);
 7542            if has_restricted_worktrees {
 7543                let project = self.project().read(cx);
 7544                let remote_host = project
 7545                    .remote_connection_options(cx)
 7546                    .map(RemoteHostLocation::from);
 7547                let worktree_store = project.worktree_store().downgrade();
 7548                self.toggle_modal(window, cx, |_, cx| {
 7549                    SecurityModal::new(worktree_store, remote_host, cx)
 7550                });
 7551            }
 7552        }
 7553    }
 7554}
 7555
 7556pub trait AnyActiveCall {
 7557    fn entity(&self) -> AnyEntity;
 7558    fn is_in_room(&self, _: &App) -> bool;
 7559    fn room_id(&self, _: &App) -> Option<u64>;
 7560    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7561    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7562    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7563    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7564    fn is_sharing_project(&self, _: &App) -> bool;
 7565    fn has_remote_participants(&self, _: &App) -> bool;
 7566    fn local_participant_is_guest(&self, _: &App) -> bool;
 7567    fn client(&self, _: &App) -> Arc<Client>;
 7568    fn share_on_join(&self, _: &App) -> bool;
 7569    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7570    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7571    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7572    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7573    fn join_project(
 7574        &self,
 7575        _: u64,
 7576        _: Arc<LanguageRegistry>,
 7577        _: Arc<dyn Fs>,
 7578        _: &mut App,
 7579    ) -> Task<Result<Entity<Project>>>;
 7580    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7581    fn subscribe(
 7582        &self,
 7583        _: &mut Window,
 7584        _: &mut Context<Workspace>,
 7585        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7586    ) -> Subscription;
 7587    fn create_shared_screen(
 7588        &self,
 7589        _: PeerId,
 7590        _: &Entity<Pane>,
 7591        _: &mut Window,
 7592        _: &mut App,
 7593    ) -> Option<Entity<SharedScreen>>;
 7594}
 7595
 7596#[derive(Clone)]
 7597pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7598impl Global for GlobalAnyActiveCall {}
 7599
 7600impl GlobalAnyActiveCall {
 7601    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7602        cx.try_global()
 7603    }
 7604
 7605    pub(crate) fn global(cx: &App) -> &Self {
 7606        cx.global()
 7607    }
 7608}
 7609
 7610pub fn merge_conflict_notification_id() -> NotificationId {
 7611    struct MergeConflictNotification;
 7612    NotificationId::unique::<MergeConflictNotification>()
 7613}
 7614
 7615/// Workspace-local view of a remote participant's location.
 7616#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7617pub enum ParticipantLocation {
 7618    SharedProject { project_id: u64 },
 7619    UnsharedProject,
 7620    External,
 7621}
 7622
 7623impl ParticipantLocation {
 7624    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7625        match location
 7626            .and_then(|l| l.variant)
 7627            .context("participant location was not provided")?
 7628        {
 7629            proto::participant_location::Variant::SharedProject(project) => {
 7630                Ok(Self::SharedProject {
 7631                    project_id: project.id,
 7632                })
 7633            }
 7634            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7635            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7636        }
 7637    }
 7638}
 7639/// Workspace-local view of a remote collaborator's state.
 7640/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7641#[derive(Clone)]
 7642pub struct RemoteCollaborator {
 7643    pub user: Arc<User>,
 7644    pub peer_id: PeerId,
 7645    pub location: ParticipantLocation,
 7646    pub participant_index: ParticipantIndex,
 7647}
 7648
 7649pub enum ActiveCallEvent {
 7650    ParticipantLocationChanged { participant_id: PeerId },
 7651    RemoteVideoTracksChanged { participant_id: PeerId },
 7652}
 7653
 7654fn leader_border_for_pane(
 7655    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7656    pane: &Entity<Pane>,
 7657    _: &Window,
 7658    cx: &App,
 7659) -> Option<Div> {
 7660    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7661        if state.pane() == pane {
 7662            Some((*leader_id, state))
 7663        } else {
 7664            None
 7665        }
 7666    })?;
 7667
 7668    let mut leader_color = match leader_id {
 7669        CollaboratorId::PeerId(leader_peer_id) => {
 7670            let leader = GlobalAnyActiveCall::try_global(cx)?
 7671                .0
 7672                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7673
 7674            cx.theme()
 7675                .players()
 7676                .color_for_participant(leader.participant_index.0)
 7677                .cursor
 7678        }
 7679        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7680    };
 7681    leader_color.fade_out(0.3);
 7682    Some(
 7683        div()
 7684            .absolute()
 7685            .size_full()
 7686            .left_0()
 7687            .top_0()
 7688            .border_2()
 7689            .border_color(leader_color),
 7690    )
 7691}
 7692
 7693fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7694    ZED_WINDOW_POSITION
 7695        .zip(*ZED_WINDOW_SIZE)
 7696        .map(|(position, size)| Bounds {
 7697            origin: position,
 7698            size,
 7699        })
 7700}
 7701
 7702fn open_items(
 7703    serialized_workspace: Option<SerializedWorkspace>,
 7704    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7705    window: &mut Window,
 7706    cx: &mut Context<Workspace>,
 7707) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7708    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7709        Workspace::load_workspace(
 7710            serialized_workspace,
 7711            project_paths_to_open
 7712                .iter()
 7713                .map(|(_, project_path)| project_path)
 7714                .cloned()
 7715                .collect(),
 7716            window,
 7717            cx,
 7718        )
 7719    });
 7720
 7721    cx.spawn_in(window, async move |workspace, cx| {
 7722        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7723
 7724        if let Some(restored_items) = restored_items {
 7725            let restored_items = restored_items.await?;
 7726
 7727            let restored_project_paths = restored_items
 7728                .iter()
 7729                .filter_map(|item| {
 7730                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7731                        .ok()
 7732                        .flatten()
 7733                })
 7734                .collect::<HashSet<_>>();
 7735
 7736            for restored_item in restored_items {
 7737                opened_items.push(restored_item.map(Ok));
 7738            }
 7739
 7740            project_paths_to_open
 7741                .iter_mut()
 7742                .for_each(|(_, project_path)| {
 7743                    if let Some(project_path_to_open) = project_path
 7744                        && restored_project_paths.contains(project_path_to_open)
 7745                    {
 7746                        *project_path = None;
 7747                    }
 7748                });
 7749        } else {
 7750            for _ in 0..project_paths_to_open.len() {
 7751                opened_items.push(None);
 7752            }
 7753        }
 7754        assert!(opened_items.len() == project_paths_to_open.len());
 7755
 7756        let tasks =
 7757            project_paths_to_open
 7758                .into_iter()
 7759                .enumerate()
 7760                .map(|(ix, (abs_path, project_path))| {
 7761                    let workspace = workspace.clone();
 7762                    cx.spawn(async move |cx| {
 7763                        let file_project_path = project_path?;
 7764                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7765                            workspace.project().update(cx, |project, cx| {
 7766                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7767                            })
 7768                        });
 7769
 7770                        // We only want to open file paths here. If one of the items
 7771                        // here is a directory, it was already opened further above
 7772                        // with a `find_or_create_worktree`.
 7773                        if let Ok(task) = abs_path_task
 7774                            && task.await.is_none_or(|p| p.is_file())
 7775                        {
 7776                            return Some((
 7777                                ix,
 7778                                workspace
 7779                                    .update_in(cx, |workspace, window, cx| {
 7780                                        workspace.open_path(
 7781                                            file_project_path,
 7782                                            None,
 7783                                            true,
 7784                                            window,
 7785                                            cx,
 7786                                        )
 7787                                    })
 7788                                    .log_err()?
 7789                                    .await,
 7790                            ));
 7791                        }
 7792                        None
 7793                    })
 7794                });
 7795
 7796        let tasks = tasks.collect::<Vec<_>>();
 7797
 7798        let tasks = futures::future::join_all(tasks);
 7799        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7800            opened_items[ix] = Some(path_open_result);
 7801        }
 7802
 7803        Ok(opened_items)
 7804    })
 7805}
 7806
 7807#[derive(Clone)]
 7808enum ActivateInDirectionTarget {
 7809    Pane(Entity<Pane>),
 7810    Dock(Entity<Dock>),
 7811    Sidebar(FocusHandle),
 7812}
 7813
 7814fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7815    window
 7816        .update(cx, |multi_workspace, _, cx| {
 7817            let workspace = multi_workspace.workspace().clone();
 7818            workspace.update(cx, |workspace, cx| {
 7819                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7820                    struct DatabaseFailedNotification;
 7821
 7822                    workspace.show_notification(
 7823                        NotificationId::unique::<DatabaseFailedNotification>(),
 7824                        cx,
 7825                        |cx| {
 7826                            cx.new(|cx| {
 7827                                MessageNotification::new("Failed to load the database file.", cx)
 7828                                    .primary_message("File an Issue")
 7829                                    .primary_icon(IconName::Plus)
 7830                                    .primary_on_click(|window, cx| {
 7831                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7832                                    })
 7833                            })
 7834                        },
 7835                    );
 7836                }
 7837            });
 7838        })
 7839        .log_err();
 7840}
 7841
 7842fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7843    if val == 0 {
 7844        ThemeSettings::get_global(cx).ui_font_size(cx)
 7845    } else {
 7846        px(val as f32)
 7847    }
 7848}
 7849
 7850fn adjust_active_dock_size_by_px(
 7851    px: Pixels,
 7852    workspace: &mut Workspace,
 7853    window: &mut Window,
 7854    cx: &mut Context<Workspace>,
 7855) {
 7856    let Some(active_dock) = workspace
 7857        .all_docks()
 7858        .into_iter()
 7859        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7860    else {
 7861        return;
 7862    };
 7863    let dock = active_dock.read(cx);
 7864    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 7865        return;
 7866    };
 7867    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 7868}
 7869
 7870fn adjust_open_docks_size_by_px(
 7871    px: Pixels,
 7872    workspace: &mut Workspace,
 7873    window: &mut Window,
 7874    cx: &mut Context<Workspace>,
 7875) {
 7876    let docks = workspace
 7877        .all_docks()
 7878        .into_iter()
 7879        .filter_map(|dock_entity| {
 7880            let dock = dock_entity.read(cx);
 7881            if dock.is_open() {
 7882                let dock_pos = dock.position();
 7883                let panel_size = workspace.dock_size(&dock, window, cx)?;
 7884                Some((dock_pos, panel_size + px))
 7885            } else {
 7886                None
 7887            }
 7888        })
 7889        .collect::<Vec<_>>();
 7890
 7891    for (position, new_size) in docks {
 7892        workspace.resize_dock(position, new_size, window, cx);
 7893    }
 7894}
 7895
 7896impl Focusable for Workspace {
 7897    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7898        self.active_pane.focus_handle(cx)
 7899    }
 7900}
 7901
 7902#[derive(Clone)]
 7903struct DraggedDock(DockPosition);
 7904
 7905impl Render for DraggedDock {
 7906    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7907        gpui::Empty
 7908    }
 7909}
 7910
 7911impl Render for Workspace {
 7912    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7913        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7914        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7915            log::info!("Rendered first frame");
 7916        }
 7917
 7918        let centered_layout = self.centered_layout
 7919            && self.center.panes().len() == 1
 7920            && self.active_item(cx).is_some();
 7921        let render_padding = |size| {
 7922            (size > 0.0).then(|| {
 7923                div()
 7924                    .h_full()
 7925                    .w(relative(size))
 7926                    .bg(cx.theme().colors().editor_background)
 7927                    .border_color(cx.theme().colors().pane_group_border)
 7928            })
 7929        };
 7930        let paddings = if centered_layout {
 7931            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7932            (
 7933                render_padding(Self::adjust_padding(
 7934                    settings.left_padding.map(|padding| padding.0),
 7935                )),
 7936                render_padding(Self::adjust_padding(
 7937                    settings.right_padding.map(|padding| padding.0),
 7938                )),
 7939            )
 7940        } else {
 7941            (None, None)
 7942        };
 7943        let ui_font = theme::setup_ui_font(window, cx);
 7944
 7945        let theme = cx.theme().clone();
 7946        let colors = theme.colors();
 7947        let notification_entities = self
 7948            .notifications
 7949            .iter()
 7950            .map(|(_, notification)| notification.entity_id())
 7951            .collect::<Vec<_>>();
 7952        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7953
 7954        div()
 7955            .relative()
 7956            .size_full()
 7957            .flex()
 7958            .flex_col()
 7959            .font(ui_font)
 7960            .gap_0()
 7961                .justify_start()
 7962                .items_start()
 7963                .text_color(colors.text)
 7964                .overflow_hidden()
 7965                .children(self.titlebar_item.clone())
 7966                .on_modifiers_changed(move |_, _, cx| {
 7967                    for &id in &notification_entities {
 7968                        cx.notify(id);
 7969                    }
 7970                })
 7971                .child(
 7972                    div()
 7973                        .size_full()
 7974                        .relative()
 7975                        .flex_1()
 7976                        .flex()
 7977                        .flex_col()
 7978                        .child(
 7979                            div()
 7980                                .id("workspace")
 7981                                .bg(colors.background)
 7982                                .relative()
 7983                                .flex_1()
 7984                                .w_full()
 7985                                .flex()
 7986                                .flex_col()
 7987                                .overflow_hidden()
 7988                                .border_t_1()
 7989                                .border_b_1()
 7990                                .border_color(colors.border)
 7991                                .child({
 7992                                    let this = cx.entity();
 7993                                    canvas(
 7994                                        move |bounds, window, cx| {
 7995                                            this.update(cx, |this, cx| {
 7996                                                let bounds_changed = this.bounds != bounds;
 7997                                                this.bounds = bounds;
 7998
 7999                                                if bounds_changed {
 8000                                                    this.left_dock.update(cx, |dock, cx| {
 8001                                                        dock.clamp_panel_size(
 8002                                                            bounds.size.width,
 8003                                                            window,
 8004                                                            cx,
 8005                                                        )
 8006                                                    });
 8007
 8008                                                    this.right_dock.update(cx, |dock, cx| {
 8009                                                        dock.clamp_panel_size(
 8010                                                            bounds.size.width,
 8011                                                            window,
 8012                                                            cx,
 8013                                                        )
 8014                                                    });
 8015
 8016                                                    this.bottom_dock.update(cx, |dock, cx| {
 8017                                                        dock.clamp_panel_size(
 8018                                                            bounds.size.height,
 8019                                                            window,
 8020                                                            cx,
 8021                                                        )
 8022                                                    });
 8023                                                }
 8024                                            })
 8025                                        },
 8026                                        |_, _, _, _| {},
 8027                                    )
 8028                                    .absolute()
 8029                                    .size_full()
 8030                                })
 8031                                .when(self.zoomed.is_none(), |this| {
 8032                                    this.on_drag_move(cx.listener(
 8033                                        move |workspace,
 8034                                              e: &DragMoveEvent<DraggedDock>,
 8035                                              window,
 8036                                              cx| {
 8037                                            if workspace.previous_dock_drag_coordinates
 8038                                                != Some(e.event.position)
 8039                                            {
 8040                                                workspace.previous_dock_drag_coordinates =
 8041                                                    Some(e.event.position);
 8042
 8043                                                match e.drag(cx).0 {
 8044                                                    DockPosition::Left => {
 8045                                                        workspace.resize_left_dock(
 8046                                                            e.event.position.x
 8047                                                                - workspace.bounds.left(),
 8048                                                            window,
 8049                                                            cx,
 8050                                                        );
 8051                                                    }
 8052                                                    DockPosition::Right => {
 8053                                                        workspace.resize_right_dock(
 8054                                                            workspace.bounds.right()
 8055                                                                - e.event.position.x,
 8056                                                            window,
 8057                                                            cx,
 8058                                                        );
 8059                                                    }
 8060                                                    DockPosition::Bottom => {
 8061                                                        workspace.resize_bottom_dock(
 8062                                                            workspace.bounds.bottom()
 8063                                                                - e.event.position.y,
 8064                                                            window,
 8065                                                            cx,
 8066                                                        );
 8067                                                    }
 8068                                                };
 8069                                                workspace.serialize_workspace(window, cx);
 8070                                            }
 8071                                        },
 8072                                    ))
 8073
 8074                                })
 8075                                .child({
 8076                                    match bottom_dock_layout {
 8077                                        BottomDockLayout::Full => div()
 8078                                            .flex()
 8079                                            .flex_col()
 8080                                            .h_full()
 8081                                            .child(
 8082                                                div()
 8083                                                    .flex()
 8084                                                    .flex_row()
 8085                                                    .flex_1()
 8086                                                    .overflow_hidden()
 8087                                                    .children(self.render_dock(
 8088                                                        DockPosition::Left,
 8089                                                        &self.left_dock,
 8090                                                        window,
 8091                                                        cx,
 8092                                                    ))
 8093
 8094                                                    .child(
 8095                                                        div()
 8096                                                            .flex()
 8097                                                            .flex_col()
 8098                                                            .flex_1()
 8099                                                            .overflow_hidden()
 8100                                                            .child(
 8101                                                                h_flex()
 8102                                                                    .flex_1()
 8103                                                                    .when_some(
 8104                                                                        paddings.0,
 8105                                                                        |this, p| {
 8106                                                                            this.child(
 8107                                                                                p.border_r_1(),
 8108                                                                            )
 8109                                                                        },
 8110                                                                    )
 8111                                                                    .child(self.center.render(
 8112                                                                        self.zoomed.as_ref(),
 8113                                                                        &PaneRenderContext {
 8114                                                                            follower_states:
 8115                                                                                &self.follower_states,
 8116                                                                            active_call: self.active_call(),
 8117                                                                            active_pane: &self.active_pane,
 8118                                                                            app_state: &self.app_state,
 8119                                                                            project: &self.project,
 8120                                                                            workspace: &self.weak_self,
 8121                                                                        },
 8122                                                                        window,
 8123                                                                        cx,
 8124                                                                    ))
 8125                                                                    .when_some(
 8126                                                                        paddings.1,
 8127                                                                        |this, p| {
 8128                                                                            this.child(
 8129                                                                                p.border_l_1(),
 8130                                                                            )
 8131                                                                        },
 8132                                                                    ),
 8133                                                            ),
 8134                                                    )
 8135
 8136                                                    .children(self.render_dock(
 8137                                                        DockPosition::Right,
 8138                                                        &self.right_dock,
 8139                                                        window,
 8140                                                        cx,
 8141                                                    )),
 8142                                            )
 8143                                            .child(div().w_full().children(self.render_dock(
 8144                                                DockPosition::Bottom,
 8145                                                &self.bottom_dock,
 8146                                                window,
 8147                                                cx
 8148                                            ))),
 8149
 8150                                        BottomDockLayout::LeftAligned => div()
 8151                                            .flex()
 8152                                            .flex_row()
 8153                                            .h_full()
 8154                                            .child(
 8155                                                div()
 8156                                                    .flex()
 8157                                                    .flex_col()
 8158                                                    .flex_1()
 8159                                                    .h_full()
 8160                                                    .child(
 8161                                                        div()
 8162                                                            .flex()
 8163                                                            .flex_row()
 8164                                                            .flex_1()
 8165                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8166
 8167                                                            .child(
 8168                                                                div()
 8169                                                                    .flex()
 8170                                                                    .flex_col()
 8171                                                                    .flex_1()
 8172                                                                    .overflow_hidden()
 8173                                                                    .child(
 8174                                                                        h_flex()
 8175                                                                            .flex_1()
 8176                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8177                                                                            .child(self.center.render(
 8178                                                                                self.zoomed.as_ref(),
 8179                                                                                &PaneRenderContext {
 8180                                                                                    follower_states:
 8181                                                                                        &self.follower_states,
 8182                                                                                    active_call: self.active_call(),
 8183                                                                                    active_pane: &self.active_pane,
 8184                                                                                    app_state: &self.app_state,
 8185                                                                                    project: &self.project,
 8186                                                                                    workspace: &self.weak_self,
 8187                                                                                },
 8188                                                                                window,
 8189                                                                                cx,
 8190                                                                            ))
 8191                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8192                                                                    )
 8193                                                            )
 8194
 8195                                                    )
 8196                                                    .child(
 8197                                                        div()
 8198                                                            .w_full()
 8199                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8200                                                    ),
 8201                                            )
 8202                                            .children(self.render_dock(
 8203                                                DockPosition::Right,
 8204                                                &self.right_dock,
 8205                                                window,
 8206                                                cx,
 8207                                            )),
 8208                                        BottomDockLayout::RightAligned => div()
 8209                                            .flex()
 8210                                            .flex_row()
 8211                                            .h_full()
 8212                                            .children(self.render_dock(
 8213                                                DockPosition::Left,
 8214                                                &self.left_dock,
 8215                                                window,
 8216                                                cx,
 8217                                            ))
 8218
 8219                                            .child(
 8220                                                div()
 8221                                                    .flex()
 8222                                                    .flex_col()
 8223                                                    .flex_1()
 8224                                                    .h_full()
 8225                                                    .child(
 8226                                                        div()
 8227                                                            .flex()
 8228                                                            .flex_row()
 8229                                                            .flex_1()
 8230                                                            .child(
 8231                                                                div()
 8232                                                                    .flex()
 8233                                                                    .flex_col()
 8234                                                                    .flex_1()
 8235                                                                    .overflow_hidden()
 8236                                                                    .child(
 8237                                                                        h_flex()
 8238                                                                            .flex_1()
 8239                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8240                                                                            .child(self.center.render(
 8241                                                                                self.zoomed.as_ref(),
 8242                                                                                &PaneRenderContext {
 8243                                                                                    follower_states:
 8244                                                                                        &self.follower_states,
 8245                                                                                    active_call: self.active_call(),
 8246                                                                                    active_pane: &self.active_pane,
 8247                                                                                    app_state: &self.app_state,
 8248                                                                                    project: &self.project,
 8249                                                                                    workspace: &self.weak_self,
 8250                                                                                },
 8251                                                                                window,
 8252                                                                                cx,
 8253                                                                            ))
 8254                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8255                                                                    )
 8256                                                            )
 8257
 8258                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8259                                                    )
 8260                                                    .child(
 8261                                                        div()
 8262                                                            .w_full()
 8263                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8264                                                    ),
 8265                                            ),
 8266                                        BottomDockLayout::Contained => div()
 8267                                            .flex()
 8268                                            .flex_row()
 8269                                            .h_full()
 8270                                            .children(self.render_dock(
 8271                                                DockPosition::Left,
 8272                                                &self.left_dock,
 8273                                                window,
 8274                                                cx,
 8275                                            ))
 8276
 8277                                            .child(
 8278                                                div()
 8279                                                    .flex()
 8280                                                    .flex_col()
 8281                                                    .flex_1()
 8282                                                    .overflow_hidden()
 8283                                                    .child(
 8284                                                        h_flex()
 8285                                                            .flex_1()
 8286                                                            .when_some(paddings.0, |this, p| {
 8287                                                                this.child(p.border_r_1())
 8288                                                            })
 8289                                                            .child(self.center.render(
 8290                                                                self.zoomed.as_ref(),
 8291                                                                &PaneRenderContext {
 8292                                                                    follower_states:
 8293                                                                        &self.follower_states,
 8294                                                                    active_call: self.active_call(),
 8295                                                                    active_pane: &self.active_pane,
 8296                                                                    app_state: &self.app_state,
 8297                                                                    project: &self.project,
 8298                                                                    workspace: &self.weak_self,
 8299                                                                },
 8300                                                                window,
 8301                                                                cx,
 8302                                                            ))
 8303                                                            .when_some(paddings.1, |this, p| {
 8304                                                                this.child(p.border_l_1())
 8305                                                            }),
 8306                                                    )
 8307                                                    .children(self.render_dock(
 8308                                                        DockPosition::Bottom,
 8309                                                        &self.bottom_dock,
 8310                                                        window,
 8311                                                        cx,
 8312                                                    )),
 8313                                            )
 8314
 8315                                            .children(self.render_dock(
 8316                                                DockPosition::Right,
 8317                                                &self.right_dock,
 8318                                                window,
 8319                                                cx,
 8320                                            )),
 8321                                    }
 8322                                })
 8323                                .children(self.zoomed.as_ref().and_then(|view| {
 8324                                    let zoomed_view = view.upgrade()?;
 8325                                    let div = div()
 8326                                        .occlude()
 8327                                        .absolute()
 8328                                        .overflow_hidden()
 8329                                        .border_color(colors.border)
 8330                                        .bg(colors.background)
 8331                                        .child(zoomed_view)
 8332                                        .inset_0()
 8333                                        .shadow_lg();
 8334
 8335                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8336                                       return Some(div);
 8337                                    }
 8338
 8339                                    Some(match self.zoomed_position {
 8340                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8341                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8342                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8343                                        None => {
 8344                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8345                                        }
 8346                                    })
 8347                                }))
 8348                                .children(self.render_notifications(window, cx)),
 8349                        )
 8350                        .when(self.status_bar_visible(cx), |parent| {
 8351                            parent.child(self.status_bar.clone())
 8352                        })
 8353                        .child(self.toast_layer.clone()),
 8354                )
 8355    }
 8356}
 8357
 8358impl WorkspaceStore {
 8359    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8360        Self {
 8361            workspaces: Default::default(),
 8362            _subscriptions: vec![
 8363                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8364                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8365            ],
 8366            client,
 8367        }
 8368    }
 8369
 8370    pub fn update_followers(
 8371        &self,
 8372        project_id: Option<u64>,
 8373        update: proto::update_followers::Variant,
 8374        cx: &App,
 8375    ) -> Option<()> {
 8376        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8377        let room_id = active_call.0.room_id(cx)?;
 8378        self.client
 8379            .send(proto::UpdateFollowers {
 8380                room_id,
 8381                project_id,
 8382                variant: Some(update),
 8383            })
 8384            .log_err()
 8385    }
 8386
 8387    pub async fn handle_follow(
 8388        this: Entity<Self>,
 8389        envelope: TypedEnvelope<proto::Follow>,
 8390        mut cx: AsyncApp,
 8391    ) -> Result<proto::FollowResponse> {
 8392        this.update(&mut cx, |this, cx| {
 8393            let follower = Follower {
 8394                project_id: envelope.payload.project_id,
 8395                peer_id: envelope.original_sender_id()?,
 8396            };
 8397
 8398            let mut response = proto::FollowResponse::default();
 8399
 8400            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8401                let Some(workspace) = weak_workspace.upgrade() else {
 8402                    return false;
 8403                };
 8404                window_handle
 8405                    .update(cx, |_, window, cx| {
 8406                        workspace.update(cx, |workspace, cx| {
 8407                            let handler_response =
 8408                                workspace.handle_follow(follower.project_id, window, cx);
 8409                            if let Some(active_view) = handler_response.active_view
 8410                                && workspace.project.read(cx).remote_id() == follower.project_id
 8411                            {
 8412                                response.active_view = Some(active_view)
 8413                            }
 8414                        });
 8415                    })
 8416                    .is_ok()
 8417            });
 8418
 8419            Ok(response)
 8420        })
 8421    }
 8422
 8423    async fn handle_update_followers(
 8424        this: Entity<Self>,
 8425        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8426        mut cx: AsyncApp,
 8427    ) -> Result<()> {
 8428        let leader_id = envelope.original_sender_id()?;
 8429        let update = envelope.payload;
 8430
 8431        this.update(&mut cx, |this, cx| {
 8432            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8433                let Some(workspace) = weak_workspace.upgrade() else {
 8434                    return false;
 8435                };
 8436                window_handle
 8437                    .update(cx, |_, window, cx| {
 8438                        workspace.update(cx, |workspace, cx| {
 8439                            let project_id = workspace.project.read(cx).remote_id();
 8440                            if update.project_id != project_id && update.project_id.is_some() {
 8441                                return;
 8442                            }
 8443                            workspace.handle_update_followers(
 8444                                leader_id,
 8445                                update.clone(),
 8446                                window,
 8447                                cx,
 8448                            );
 8449                        });
 8450                    })
 8451                    .is_ok()
 8452            });
 8453            Ok(())
 8454        })
 8455    }
 8456
 8457    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8458        self.workspaces.iter().map(|(_, weak)| weak)
 8459    }
 8460
 8461    pub fn workspaces_with_windows(
 8462        &self,
 8463    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8464        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8465    }
 8466}
 8467
 8468impl ViewId {
 8469    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8470        Ok(Self {
 8471            creator: message
 8472                .creator
 8473                .map(CollaboratorId::PeerId)
 8474                .context("creator is missing")?,
 8475            id: message.id,
 8476        })
 8477    }
 8478
 8479    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8480        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8481            Some(proto::ViewId {
 8482                creator: Some(peer_id),
 8483                id: self.id,
 8484            })
 8485        } else {
 8486            None
 8487        }
 8488    }
 8489}
 8490
 8491impl FollowerState {
 8492    fn pane(&self) -> &Entity<Pane> {
 8493        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8494    }
 8495}
 8496
 8497pub trait WorkspaceHandle {
 8498    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8499}
 8500
 8501impl WorkspaceHandle for Entity<Workspace> {
 8502    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8503        self.read(cx)
 8504            .worktrees(cx)
 8505            .flat_map(|worktree| {
 8506                let worktree_id = worktree.read(cx).id();
 8507                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8508                    worktree_id,
 8509                    path: f.path.clone(),
 8510                })
 8511            })
 8512            .collect::<Vec<_>>()
 8513    }
 8514}
 8515
 8516pub async fn last_opened_workspace_location(
 8517    db: &WorkspaceDb,
 8518    fs: &dyn fs::Fs,
 8519) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8520    db.last_workspace(fs)
 8521        .await
 8522        .log_err()
 8523        .flatten()
 8524        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8525}
 8526
 8527pub async fn last_session_workspace_locations(
 8528    db: &WorkspaceDb,
 8529    last_session_id: &str,
 8530    last_session_window_stack: Option<Vec<WindowId>>,
 8531    fs: &dyn fs::Fs,
 8532) -> Option<Vec<SessionWorkspace>> {
 8533    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8534        .await
 8535        .log_err()
 8536}
 8537
 8538pub struct MultiWorkspaceRestoreResult {
 8539    pub window_handle: WindowHandle<MultiWorkspace>,
 8540    pub errors: Vec<anyhow::Error>,
 8541}
 8542
 8543pub async fn restore_multiworkspace(
 8544    multi_workspace: SerializedMultiWorkspace,
 8545    app_state: Arc<AppState>,
 8546    cx: &mut AsyncApp,
 8547) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 8548    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 8549    let mut group_iter = workspaces.into_iter();
 8550    let first = group_iter
 8551        .next()
 8552        .context("window group must not be empty")?;
 8553
 8554    let window_handle = if first.paths.is_empty() {
 8555        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8556            .await?
 8557    } else {
 8558        let OpenResult { window, .. } = cx
 8559            .update(|cx| {
 8560                Workspace::new_local(
 8561                    first.paths.paths().to_vec(),
 8562                    app_state.clone(),
 8563                    None,
 8564                    None,
 8565                    None,
 8566                    true,
 8567                    cx,
 8568                )
 8569            })
 8570            .await?;
 8571        window
 8572    };
 8573
 8574    let mut errors = Vec::new();
 8575
 8576    for session_workspace in group_iter {
 8577        let error = if session_workspace.paths.is_empty() {
 8578            cx.update(|cx| {
 8579                open_workspace_by_id(
 8580                    session_workspace.workspace_id,
 8581                    app_state.clone(),
 8582                    Some(window_handle),
 8583                    cx,
 8584                )
 8585            })
 8586            .await
 8587            .err()
 8588        } else {
 8589            cx.update(|cx| {
 8590                Workspace::new_local(
 8591                    session_workspace.paths.paths().to_vec(),
 8592                    app_state.clone(),
 8593                    Some(window_handle),
 8594                    None,
 8595                    None,
 8596                    false,
 8597                    cx,
 8598                )
 8599            })
 8600            .await
 8601            .err()
 8602        };
 8603
 8604        if let Some(error) = error {
 8605            errors.push(error);
 8606        }
 8607    }
 8608
 8609    if let Some(target_id) = state.active_workspace_id {
 8610        window_handle
 8611            .update(cx, |multi_workspace, window, cx| {
 8612                let target_index = multi_workspace
 8613                    .workspaces()
 8614                    .iter()
 8615                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8616                if let Some(index) = target_index {
 8617                    multi_workspace.activate_index(index, window, cx);
 8618                } else if !multi_workspace.workspaces().is_empty() {
 8619                    multi_workspace.activate_index(0, window, cx);
 8620                }
 8621            })
 8622            .ok();
 8623    } else {
 8624        window_handle
 8625            .update(cx, |multi_workspace, window, cx| {
 8626                if !multi_workspace.workspaces().is_empty() {
 8627                    multi_workspace.activate_index(0, window, cx);
 8628                }
 8629            })
 8630            .ok();
 8631    }
 8632
 8633    if state.sidebar_open {
 8634        window_handle
 8635            .update(cx, |multi_workspace, _, cx| {
 8636                multi_workspace.open_sidebar(cx);
 8637            })
 8638            .ok();
 8639    }
 8640
 8641    window_handle
 8642        .update(cx, |_, window, _cx| {
 8643            window.activate_window();
 8644        })
 8645        .ok();
 8646
 8647    Ok(MultiWorkspaceRestoreResult {
 8648        window_handle,
 8649        errors,
 8650    })
 8651}
 8652
 8653actions!(
 8654    collab,
 8655    [
 8656        /// Opens the channel notes for the current call.
 8657        ///
 8658        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8659        /// channel in the collab panel.
 8660        ///
 8661        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8662        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8663        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8664        OpenChannelNotes,
 8665        /// Mutes your microphone.
 8666        Mute,
 8667        /// Deafens yourself (mute both microphone and speakers).
 8668        Deafen,
 8669        /// Leaves the current call.
 8670        LeaveCall,
 8671        /// Shares the current project with collaborators.
 8672        ShareProject,
 8673        /// Shares your screen with collaborators.
 8674        ScreenShare,
 8675        /// Copies the current room name and session id for debugging purposes.
 8676        CopyRoomId,
 8677    ]
 8678);
 8679
 8680/// Opens the channel notes for a specific channel by its ID.
 8681#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8682#[action(namespace = collab)]
 8683#[serde(deny_unknown_fields)]
 8684pub struct OpenChannelNotesById {
 8685    pub channel_id: u64,
 8686}
 8687
 8688actions!(
 8689    zed,
 8690    [
 8691        /// Opens the Zed log file.
 8692        OpenLog,
 8693        /// Reveals the Zed log file in the system file manager.
 8694        RevealLogInFileManager
 8695    ]
 8696);
 8697
 8698async fn join_channel_internal(
 8699    channel_id: ChannelId,
 8700    app_state: &Arc<AppState>,
 8701    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8702    requesting_workspace: Option<WeakEntity<Workspace>>,
 8703    active_call: &dyn AnyActiveCall,
 8704    cx: &mut AsyncApp,
 8705) -> Result<bool> {
 8706    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8707        if !active_call.is_in_room(cx) {
 8708            return (false, false);
 8709        }
 8710
 8711        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8712        let should_prompt = active_call.is_sharing_project(cx)
 8713            && active_call.has_remote_participants(cx)
 8714            && !already_in_channel;
 8715        (should_prompt, already_in_channel)
 8716    });
 8717
 8718    if already_in_channel {
 8719        let task = cx.update(|cx| {
 8720            if let Some((project, host)) = active_call.most_active_project(cx) {
 8721                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8722            } else {
 8723                None
 8724            }
 8725        });
 8726        if let Some(task) = task {
 8727            task.await?;
 8728        }
 8729        return anyhow::Ok(true);
 8730    }
 8731
 8732    if should_prompt {
 8733        if let Some(multi_workspace) = requesting_window {
 8734            let answer = multi_workspace
 8735                .update(cx, |_, window, cx| {
 8736                    window.prompt(
 8737                        PromptLevel::Warning,
 8738                        "Do you want to switch channels?",
 8739                        Some("Leaving this call will unshare your current project."),
 8740                        &["Yes, Join Channel", "Cancel"],
 8741                        cx,
 8742                    )
 8743                })?
 8744                .await;
 8745
 8746            if answer == Ok(1) {
 8747                return Ok(false);
 8748            }
 8749        } else {
 8750            return Ok(false);
 8751        }
 8752    }
 8753
 8754    let client = cx.update(|cx| active_call.client(cx));
 8755
 8756    let mut client_status = client.status();
 8757
 8758    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8759    'outer: loop {
 8760        let Some(status) = client_status.recv().await else {
 8761            anyhow::bail!("error connecting");
 8762        };
 8763
 8764        match status {
 8765            Status::Connecting
 8766            | Status::Authenticating
 8767            | Status::Authenticated
 8768            | Status::Reconnecting
 8769            | Status::Reauthenticating
 8770            | Status::Reauthenticated => continue,
 8771            Status::Connected { .. } => break 'outer,
 8772            Status::SignedOut | Status::AuthenticationError => {
 8773                return Err(ErrorCode::SignedOut.into());
 8774            }
 8775            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8776            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8777                return Err(ErrorCode::Disconnected.into());
 8778            }
 8779        }
 8780    }
 8781
 8782    let joined = cx
 8783        .update(|cx| active_call.join_channel(channel_id, cx))
 8784        .await?;
 8785
 8786    if !joined {
 8787        return anyhow::Ok(true);
 8788    }
 8789
 8790    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8791
 8792    let task = cx.update(|cx| {
 8793        if let Some((project, host)) = active_call.most_active_project(cx) {
 8794            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8795        }
 8796
 8797        // If you are the first to join a channel, see if you should share your project.
 8798        if !active_call.has_remote_participants(cx)
 8799            && !active_call.local_participant_is_guest(cx)
 8800            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8801        {
 8802            let project = workspace.update(cx, |workspace, cx| {
 8803                let project = workspace.project.read(cx);
 8804
 8805                if !active_call.share_on_join(cx) {
 8806                    return None;
 8807                }
 8808
 8809                if (project.is_local() || project.is_via_remote_server())
 8810                    && project.visible_worktrees(cx).any(|tree| {
 8811                        tree.read(cx)
 8812                            .root_entry()
 8813                            .is_some_and(|entry| entry.is_dir())
 8814                    })
 8815                {
 8816                    Some(workspace.project.clone())
 8817                } else {
 8818                    None
 8819                }
 8820            });
 8821            if let Some(project) = project {
 8822                let share_task = active_call.share_project(project, cx);
 8823                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8824                    share_task.await?;
 8825                    Ok(())
 8826                }));
 8827            }
 8828        }
 8829
 8830        None
 8831    });
 8832    if let Some(task) = task {
 8833        task.await?;
 8834        return anyhow::Ok(true);
 8835    }
 8836    anyhow::Ok(false)
 8837}
 8838
 8839pub fn join_channel(
 8840    channel_id: ChannelId,
 8841    app_state: Arc<AppState>,
 8842    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8843    requesting_workspace: Option<WeakEntity<Workspace>>,
 8844    cx: &mut App,
 8845) -> Task<Result<()>> {
 8846    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8847    cx.spawn(async move |cx| {
 8848        let result = join_channel_internal(
 8849            channel_id,
 8850            &app_state,
 8851            requesting_window,
 8852            requesting_workspace,
 8853            &*active_call.0,
 8854            cx,
 8855        )
 8856        .await;
 8857
 8858        // join channel succeeded, and opened a window
 8859        if matches!(result, Ok(true)) {
 8860            return anyhow::Ok(());
 8861        }
 8862
 8863        // find an existing workspace to focus and show call controls
 8864        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8865        if active_window.is_none() {
 8866            // no open workspaces, make one to show the error in (blergh)
 8867            let OpenResult {
 8868                window: window_handle,
 8869                ..
 8870            } = cx
 8871                .update(|cx| {
 8872                    Workspace::new_local(
 8873                        vec![],
 8874                        app_state.clone(),
 8875                        requesting_window,
 8876                        None,
 8877                        None,
 8878                        true,
 8879                        cx,
 8880                    )
 8881                })
 8882                .await?;
 8883
 8884            window_handle
 8885                .update(cx, |_, window, _cx| {
 8886                    window.activate_window();
 8887                })
 8888                .ok();
 8889
 8890            if result.is_ok() {
 8891                cx.update(|cx| {
 8892                    cx.dispatch_action(&OpenChannelNotes);
 8893                });
 8894            }
 8895
 8896            active_window = Some(window_handle);
 8897        }
 8898
 8899        if let Err(err) = result {
 8900            log::error!("failed to join channel: {}", err);
 8901            if let Some(active_window) = active_window {
 8902                active_window
 8903                    .update(cx, |_, window, cx| {
 8904                        let detail: SharedString = match err.error_code() {
 8905                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8906                            ErrorCode::UpgradeRequired => concat!(
 8907                                "Your are running an unsupported version of Zed. ",
 8908                                "Please update to continue."
 8909                            )
 8910                            .into(),
 8911                            ErrorCode::NoSuchChannel => concat!(
 8912                                "No matching channel was found. ",
 8913                                "Please check the link and try again."
 8914                            )
 8915                            .into(),
 8916                            ErrorCode::Forbidden => concat!(
 8917                                "This channel is private, and you do not have access. ",
 8918                                "Please ask someone to add you and try again."
 8919                            )
 8920                            .into(),
 8921                            ErrorCode::Disconnected => {
 8922                                "Please check your internet connection and try again.".into()
 8923                            }
 8924                            _ => format!("{}\n\nPlease try again.", err).into(),
 8925                        };
 8926                        window.prompt(
 8927                            PromptLevel::Critical,
 8928                            "Failed to join channel",
 8929                            Some(&detail),
 8930                            &["Ok"],
 8931                            cx,
 8932                        )
 8933                    })?
 8934                    .await
 8935                    .ok();
 8936            }
 8937        }
 8938
 8939        // return ok, we showed the error to the user.
 8940        anyhow::Ok(())
 8941    })
 8942}
 8943
 8944pub async fn get_any_active_multi_workspace(
 8945    app_state: Arc<AppState>,
 8946    mut cx: AsyncApp,
 8947) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8948    // find an existing workspace to focus and show call controls
 8949    let active_window = activate_any_workspace_window(&mut cx);
 8950    if active_window.is_none() {
 8951        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, true, cx))
 8952            .await?;
 8953    }
 8954    activate_any_workspace_window(&mut cx).context("could not open zed")
 8955}
 8956
 8957fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8958    cx.update(|cx| {
 8959        if let Some(workspace_window) = cx
 8960            .active_window()
 8961            .and_then(|window| window.downcast::<MultiWorkspace>())
 8962        {
 8963            return Some(workspace_window);
 8964        }
 8965
 8966        for window in cx.windows() {
 8967            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8968                workspace_window
 8969                    .update(cx, |_, window, _| window.activate_window())
 8970                    .ok();
 8971                return Some(workspace_window);
 8972            }
 8973        }
 8974        None
 8975    })
 8976}
 8977
 8978pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8979    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 8980}
 8981
 8982pub fn workspace_windows_for_location(
 8983    serialized_location: &SerializedWorkspaceLocation,
 8984    cx: &App,
 8985) -> Vec<WindowHandle<MultiWorkspace>> {
 8986    cx.windows()
 8987        .into_iter()
 8988        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8989        .filter(|multi_workspace| {
 8990            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 8991                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 8992                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 8993                }
 8994                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 8995                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 8996                    a.distro_name == b.distro_name
 8997                }
 8998                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 8999                    a.container_id == b.container_id
 9000                }
 9001                #[cfg(any(test, feature = "test-support"))]
 9002                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 9003                    a.id == b.id
 9004                }
 9005                _ => false,
 9006            };
 9007
 9008            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 9009                multi_workspace.workspaces().iter().any(|workspace| {
 9010                    match workspace.read(cx).workspace_location(cx) {
 9011                        WorkspaceLocation::Location(location, _) => {
 9012                            match (&location, serialized_location) {
 9013                                (
 9014                                    SerializedWorkspaceLocation::Local,
 9015                                    SerializedWorkspaceLocation::Local,
 9016                                ) => true,
 9017                                (
 9018                                    SerializedWorkspaceLocation::Remote(a),
 9019                                    SerializedWorkspaceLocation::Remote(b),
 9020                                ) => same_host(a, b),
 9021                                _ => false,
 9022                            }
 9023                        }
 9024                        _ => false,
 9025                    }
 9026                })
 9027            })
 9028        })
 9029        .collect()
 9030}
 9031
 9032pub async fn find_existing_workspace(
 9033    abs_paths: &[PathBuf],
 9034    open_options: &OpenOptions,
 9035    location: &SerializedWorkspaceLocation,
 9036    cx: &mut AsyncApp,
 9037) -> (
 9038    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9039    OpenVisible,
 9040) {
 9041    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9042    let mut open_visible = OpenVisible::All;
 9043    let mut best_match = None;
 9044
 9045    if open_options.open_new_workspace != Some(true) {
 9046        cx.update(|cx| {
 9047            for window in workspace_windows_for_location(location, cx) {
 9048                if let Ok(multi_workspace) = window.read(cx) {
 9049                    for workspace in multi_workspace.workspaces() {
 9050                        let project = workspace.read(cx).project.read(cx);
 9051                        let m = project.visibility_for_paths(
 9052                            abs_paths,
 9053                            open_options.open_new_workspace == None,
 9054                            cx,
 9055                        );
 9056                        if m > best_match {
 9057                            existing = Some((window, workspace.clone()));
 9058                            best_match = m;
 9059                        } else if best_match.is_none()
 9060                            && open_options.open_new_workspace == Some(false)
 9061                        {
 9062                            existing = Some((window, workspace.clone()))
 9063                        }
 9064                    }
 9065                }
 9066            }
 9067        });
 9068
 9069        let all_paths_are_files = existing
 9070            .as_ref()
 9071            .and_then(|(_, target_workspace)| {
 9072                cx.update(|cx| {
 9073                    let workspace = target_workspace.read(cx);
 9074                    let project = workspace.project.read(cx);
 9075                    let path_style = workspace.path_style(cx);
 9076                    Some(!abs_paths.iter().any(|path| {
 9077                        let path = util::paths::SanitizedPath::new(path);
 9078                        project.worktrees(cx).any(|worktree| {
 9079                            let worktree = worktree.read(cx);
 9080                            let abs_path = worktree.abs_path();
 9081                            path_style
 9082                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9083                                .and_then(|rel| worktree.entry_for_path(&rel))
 9084                                .is_some_and(|e| e.is_dir())
 9085                        })
 9086                    }))
 9087                })
 9088            })
 9089            .unwrap_or(false);
 9090
 9091        if open_options.open_new_workspace.is_none()
 9092            && existing.is_some()
 9093            && open_options.wait
 9094            && all_paths_are_files
 9095        {
 9096            cx.update(|cx| {
 9097                let windows = workspace_windows_for_location(location, cx);
 9098                let window = cx
 9099                    .active_window()
 9100                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9101                    .filter(|window| windows.contains(window))
 9102                    .or_else(|| windows.into_iter().next());
 9103                if let Some(window) = window {
 9104                    if let Ok(multi_workspace) = window.read(cx) {
 9105                        let active_workspace = multi_workspace.workspace().clone();
 9106                        existing = Some((window, active_workspace));
 9107                        open_visible = OpenVisible::None;
 9108                    }
 9109                }
 9110            });
 9111        }
 9112    }
 9113    (existing, open_visible)
 9114}
 9115
 9116#[derive(Default, Clone)]
 9117pub struct OpenOptions {
 9118    pub visible: Option<OpenVisible>,
 9119    pub focus: Option<bool>,
 9120    pub open_new_workspace: Option<bool>,
 9121    pub wait: bool,
 9122    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 9123    pub env: Option<HashMap<String, String>>,
 9124}
 9125
 9126/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9127/// or [`Workspace::open_workspace_for_paths`].
 9128pub struct OpenResult {
 9129    pub window: WindowHandle<MultiWorkspace>,
 9130    pub workspace: Entity<Workspace>,
 9131    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9132}
 9133
 9134/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9135pub fn open_workspace_by_id(
 9136    workspace_id: WorkspaceId,
 9137    app_state: Arc<AppState>,
 9138    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9139    cx: &mut App,
 9140) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9141    let project_handle = Project::local(
 9142        app_state.client.clone(),
 9143        app_state.node_runtime.clone(),
 9144        app_state.user_store.clone(),
 9145        app_state.languages.clone(),
 9146        app_state.fs.clone(),
 9147        None,
 9148        project::LocalProjectFlags {
 9149            init_worktree_trust: true,
 9150            ..project::LocalProjectFlags::default()
 9151        },
 9152        cx,
 9153    );
 9154
 9155    let db = WorkspaceDb::global(cx);
 9156    let kvp = db::kvp::KeyValueStore::global(cx);
 9157    cx.spawn(async move |cx| {
 9158        let serialized_workspace = db
 9159            .workspace_for_id(workspace_id)
 9160            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9161
 9162        let centered_layout = serialized_workspace.centered_layout;
 9163
 9164        let (window, workspace) = if let Some(window) = requesting_window {
 9165            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9166                let workspace = cx.new(|cx| {
 9167                    let mut workspace = Workspace::new(
 9168                        Some(workspace_id),
 9169                        project_handle.clone(),
 9170                        app_state.clone(),
 9171                        window,
 9172                        cx,
 9173                    );
 9174                    workspace.centered_layout = centered_layout;
 9175                    workspace
 9176                });
 9177                multi_workspace.add_workspace(workspace.clone(), cx);
 9178                workspace
 9179            })?;
 9180            (window, workspace)
 9181        } else {
 9182            let window_bounds_override = window_bounds_env_override();
 9183
 9184            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9185                (Some(WindowBounds::Windowed(bounds)), None)
 9186            } else if let Some(display) = serialized_workspace.display
 9187                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9188            {
 9189                (Some(bounds.0), Some(display))
 9190            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9191                (Some(bounds), Some(display))
 9192            } else {
 9193                (None, None)
 9194            };
 9195
 9196            let options = cx.update(|cx| {
 9197                let mut options = (app_state.build_window_options)(display, cx);
 9198                options.window_bounds = window_bounds;
 9199                options
 9200            });
 9201
 9202            let window = cx.open_window(options, {
 9203                let app_state = app_state.clone();
 9204                let project_handle = project_handle.clone();
 9205                move |window, cx| {
 9206                    let workspace = cx.new(|cx| {
 9207                        let mut workspace = Workspace::new(
 9208                            Some(workspace_id),
 9209                            project_handle,
 9210                            app_state,
 9211                            window,
 9212                            cx,
 9213                        );
 9214                        workspace.centered_layout = centered_layout;
 9215                        workspace
 9216                    });
 9217                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9218                }
 9219            })?;
 9220
 9221            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9222                multi_workspace.workspace().clone()
 9223            })?;
 9224
 9225            (window, workspace)
 9226        };
 9227
 9228        notify_if_database_failed(window, cx);
 9229
 9230        // Restore items from the serialized workspace
 9231        window
 9232            .update(cx, |_, window, cx| {
 9233                workspace.update(cx, |_workspace, cx| {
 9234                    open_items(Some(serialized_workspace), vec![], window, cx)
 9235                })
 9236            })?
 9237            .await?;
 9238
 9239        window.update(cx, |_, window, cx| {
 9240            workspace.update(cx, |workspace, cx| {
 9241                workspace.serialize_workspace(window, cx);
 9242            });
 9243        })?;
 9244
 9245        Ok(window)
 9246    })
 9247}
 9248
 9249#[allow(clippy::type_complexity)]
 9250pub fn open_paths(
 9251    abs_paths: &[PathBuf],
 9252    app_state: Arc<AppState>,
 9253    open_options: OpenOptions,
 9254    cx: &mut App,
 9255) -> Task<anyhow::Result<OpenResult>> {
 9256    let abs_paths = abs_paths.to_vec();
 9257    #[cfg(target_os = "windows")]
 9258    let wsl_path = abs_paths
 9259        .iter()
 9260        .find_map(|p| util::paths::WslPath::from_path(p));
 9261
 9262    cx.spawn(async move |cx| {
 9263        let (mut existing, mut open_visible) = find_existing_workspace(
 9264            &abs_paths,
 9265            &open_options,
 9266            &SerializedWorkspaceLocation::Local,
 9267            cx,
 9268        )
 9269        .await;
 9270
 9271        // Fallback: if no workspace contains the paths and all paths are files,
 9272        // prefer an existing local workspace window (active window first).
 9273        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9274            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9275            let all_metadatas = futures::future::join_all(all_paths)
 9276                .await
 9277                .into_iter()
 9278                .filter_map(|result| result.ok().flatten())
 9279                .collect::<Vec<_>>();
 9280
 9281            if all_metadatas.iter().all(|file| !file.is_dir) {
 9282                cx.update(|cx| {
 9283                    let windows = workspace_windows_for_location(
 9284                        &SerializedWorkspaceLocation::Local,
 9285                        cx,
 9286                    );
 9287                    let window = cx
 9288                        .active_window()
 9289                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9290                        .filter(|window| windows.contains(window))
 9291                        .or_else(|| windows.into_iter().next());
 9292                    if let Some(window) = window {
 9293                        if let Ok(multi_workspace) = window.read(cx) {
 9294                            let active_workspace = multi_workspace.workspace().clone();
 9295                            existing = Some((window, active_workspace));
 9296                            open_visible = OpenVisible::None;
 9297                        }
 9298                    }
 9299                });
 9300            }
 9301        }
 9302
 9303        let result = if let Some((existing, target_workspace)) = existing {
 9304            let open_task = existing
 9305                .update(cx, |multi_workspace, window, cx| {
 9306                    window.activate_window();
 9307                    multi_workspace.activate(target_workspace.clone(), cx);
 9308                    target_workspace.update(cx, |workspace, cx| {
 9309                        workspace.open_paths(
 9310                            abs_paths,
 9311                            OpenOptions {
 9312                                visible: Some(open_visible),
 9313                                ..Default::default()
 9314                            },
 9315                            None,
 9316                            window,
 9317                            cx,
 9318                        )
 9319                    })
 9320                })?
 9321                .await;
 9322
 9323            _ = existing.update(cx, |multi_workspace, _, cx| {
 9324                let workspace = multi_workspace.workspace().clone();
 9325                workspace.update(cx, |workspace, cx| {
 9326                    for item in open_task.iter().flatten() {
 9327                        if let Err(e) = item {
 9328                            workspace.show_error(&e, cx);
 9329                        }
 9330                    }
 9331                });
 9332            });
 9333
 9334            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9335        } else {
 9336            let result = cx
 9337                .update(move |cx| {
 9338                    Workspace::new_local(
 9339                        abs_paths,
 9340                        app_state.clone(),
 9341                        open_options.replace_window,
 9342                        open_options.env,
 9343                        None,
 9344                        true,
 9345                        cx,
 9346                    )
 9347                })
 9348                .await;
 9349
 9350            if let Ok(ref result) = result {
 9351                result.window
 9352                    .update(cx, |_, window, _cx| {
 9353                        window.activate_window();
 9354                    })
 9355                    .log_err();
 9356            }
 9357
 9358            result
 9359        };
 9360
 9361        #[cfg(target_os = "windows")]
 9362        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9363            && let Ok(ref result) = result
 9364        {
 9365            result.window
 9366                .update(cx, move |multi_workspace, _window, cx| {
 9367                    struct OpenInWsl;
 9368                    let workspace = multi_workspace.workspace().clone();
 9369                    workspace.update(cx, |workspace, cx| {
 9370                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9371                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9372                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9373                            cx.new(move |cx| {
 9374                                MessageNotification::new(msg, cx)
 9375                                    .primary_message("Open in WSL")
 9376                                    .primary_icon(IconName::FolderOpen)
 9377                                    .primary_on_click(move |window, cx| {
 9378                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9379                                                distro: remote::WslConnectionOptions {
 9380                                                        distro_name: distro.clone(),
 9381                                                    user: None,
 9382                                                },
 9383                                                paths: vec![path.clone().into()],
 9384                                            }), cx)
 9385                                    })
 9386                            })
 9387                        });
 9388                    });
 9389                })
 9390                .unwrap();
 9391        };
 9392        result
 9393    })
 9394}
 9395
 9396pub fn open_new(
 9397    open_options: OpenOptions,
 9398    app_state: Arc<AppState>,
 9399    cx: &mut App,
 9400    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9401) -> Task<anyhow::Result<()>> {
 9402    let task = Workspace::new_local(
 9403        Vec::new(),
 9404        app_state,
 9405        open_options.replace_window,
 9406        open_options.env,
 9407        Some(Box::new(init)),
 9408        true,
 9409        cx,
 9410    );
 9411    cx.spawn(async move |cx| {
 9412        let OpenResult { window, .. } = task.await?;
 9413        window
 9414            .update(cx, |_, window, _cx| {
 9415                window.activate_window();
 9416            })
 9417            .ok();
 9418        Ok(())
 9419    })
 9420}
 9421
 9422pub fn create_and_open_local_file(
 9423    path: &'static Path,
 9424    window: &mut Window,
 9425    cx: &mut Context<Workspace>,
 9426    default_content: impl 'static + Send + FnOnce() -> Rope,
 9427) -> Task<Result<Box<dyn ItemHandle>>> {
 9428    cx.spawn_in(window, async move |workspace, cx| {
 9429        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9430        if !fs.is_file(path).await {
 9431            fs.create_file(path, Default::default()).await?;
 9432            fs.save(path, &default_content(), Default::default())
 9433                .await?;
 9434        }
 9435
 9436        workspace
 9437            .update_in(cx, |workspace, window, cx| {
 9438                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9439                    let path = workspace
 9440                        .project
 9441                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9442                    cx.spawn_in(window, async move |workspace, cx| {
 9443                        let path = path.await?;
 9444
 9445                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9446
 9447                        let mut items = workspace
 9448                            .update_in(cx, |workspace, window, cx| {
 9449                                workspace.open_paths(
 9450                                    vec![path.to_path_buf()],
 9451                                    OpenOptions {
 9452                                        visible: Some(OpenVisible::None),
 9453                                        ..Default::default()
 9454                                    },
 9455                                    None,
 9456                                    window,
 9457                                    cx,
 9458                                )
 9459                            })?
 9460                            .await;
 9461                        let item = items.pop().flatten();
 9462                        item.with_context(|| format!("path {path:?} is not a file"))?
 9463                    })
 9464                })
 9465            })?
 9466            .await?
 9467            .await
 9468    })
 9469}
 9470
 9471pub fn open_remote_project_with_new_connection(
 9472    window: WindowHandle<MultiWorkspace>,
 9473    remote_connection: Arc<dyn RemoteConnection>,
 9474    cancel_rx: oneshot::Receiver<()>,
 9475    delegate: Arc<dyn RemoteClientDelegate>,
 9476    app_state: Arc<AppState>,
 9477    paths: Vec<PathBuf>,
 9478    cx: &mut App,
 9479) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9480    cx.spawn(async move |cx| {
 9481        let (workspace_id, serialized_workspace) =
 9482            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9483                .await?;
 9484
 9485        let session = match cx
 9486            .update(|cx| {
 9487                remote::RemoteClient::new(
 9488                    ConnectionIdentifier::Workspace(workspace_id.0),
 9489                    remote_connection,
 9490                    cancel_rx,
 9491                    delegate,
 9492                    cx,
 9493                )
 9494            })
 9495            .await?
 9496        {
 9497            Some(result) => result,
 9498            None => return Ok(Vec::new()),
 9499        };
 9500
 9501        let project = cx.update(|cx| {
 9502            project::Project::remote(
 9503                session,
 9504                app_state.client.clone(),
 9505                app_state.node_runtime.clone(),
 9506                app_state.user_store.clone(),
 9507                app_state.languages.clone(),
 9508                app_state.fs.clone(),
 9509                true,
 9510                cx,
 9511            )
 9512        });
 9513
 9514        open_remote_project_inner(
 9515            project,
 9516            paths,
 9517            workspace_id,
 9518            serialized_workspace,
 9519            app_state,
 9520            window,
 9521            cx,
 9522        )
 9523        .await
 9524    })
 9525}
 9526
 9527pub fn open_remote_project_with_existing_connection(
 9528    connection_options: RemoteConnectionOptions,
 9529    project: Entity<Project>,
 9530    paths: Vec<PathBuf>,
 9531    app_state: Arc<AppState>,
 9532    window: WindowHandle<MultiWorkspace>,
 9533    cx: &mut AsyncApp,
 9534) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9535    cx.spawn(async move |cx| {
 9536        let (workspace_id, serialized_workspace) =
 9537            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9538
 9539        open_remote_project_inner(
 9540            project,
 9541            paths,
 9542            workspace_id,
 9543            serialized_workspace,
 9544            app_state,
 9545            window,
 9546            cx,
 9547        )
 9548        .await
 9549    })
 9550}
 9551
 9552async fn open_remote_project_inner(
 9553    project: Entity<Project>,
 9554    paths: Vec<PathBuf>,
 9555    workspace_id: WorkspaceId,
 9556    serialized_workspace: Option<SerializedWorkspace>,
 9557    app_state: Arc<AppState>,
 9558    window: WindowHandle<MultiWorkspace>,
 9559    cx: &mut AsyncApp,
 9560) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9561    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9562    let toolchains = db.toolchains(workspace_id).await?;
 9563    for (toolchain, worktree_path, path) in toolchains {
 9564        project
 9565            .update(cx, |this, cx| {
 9566                let Some(worktree_id) =
 9567                    this.find_worktree(&worktree_path, cx)
 9568                        .and_then(|(worktree, rel_path)| {
 9569                            if rel_path.is_empty() {
 9570                                Some(worktree.read(cx).id())
 9571                            } else {
 9572                                None
 9573                            }
 9574                        })
 9575                else {
 9576                    return Task::ready(None);
 9577                };
 9578
 9579                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9580            })
 9581            .await;
 9582    }
 9583    let mut project_paths_to_open = vec![];
 9584    let mut project_path_errors = vec![];
 9585
 9586    for path in paths {
 9587        let result = cx
 9588            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9589            .await;
 9590        match result {
 9591            Ok((_, project_path)) => {
 9592                project_paths_to_open.push((path.clone(), Some(project_path)));
 9593            }
 9594            Err(error) => {
 9595                project_path_errors.push(error);
 9596            }
 9597        };
 9598    }
 9599
 9600    if project_paths_to_open.is_empty() {
 9601        return Err(project_path_errors.pop().context("no paths given")?);
 9602    }
 9603
 9604    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9605        telemetry::event!("SSH Project Opened");
 9606
 9607        let new_workspace = cx.new(|cx| {
 9608            let mut workspace =
 9609                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9610            workspace.update_history(cx);
 9611
 9612            if let Some(ref serialized) = serialized_workspace {
 9613                workspace.centered_layout = serialized.centered_layout;
 9614            }
 9615
 9616            workspace
 9617        });
 9618
 9619        multi_workspace.activate(new_workspace.clone(), cx);
 9620        new_workspace
 9621    })?;
 9622
 9623    let items = window
 9624        .update(cx, |_, window, cx| {
 9625            window.activate_window();
 9626            workspace.update(cx, |_workspace, cx| {
 9627                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9628            })
 9629        })?
 9630        .await?;
 9631
 9632    workspace.update(cx, |workspace, cx| {
 9633        for error in project_path_errors {
 9634            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9635                if let Some(path) = error.error_tag("path") {
 9636                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9637                }
 9638            } else {
 9639                workspace.show_error(&error, cx)
 9640            }
 9641        }
 9642    });
 9643
 9644    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9645}
 9646
 9647fn deserialize_remote_project(
 9648    connection_options: RemoteConnectionOptions,
 9649    paths: Vec<PathBuf>,
 9650    cx: &AsyncApp,
 9651) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9652    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9653    cx.background_spawn(async move {
 9654        let remote_connection_id = db
 9655            .get_or_create_remote_connection(connection_options)
 9656            .await?;
 9657
 9658        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9659
 9660        let workspace_id = if let Some(workspace_id) =
 9661            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9662        {
 9663            workspace_id
 9664        } else {
 9665            db.next_id().await?
 9666        };
 9667
 9668        Ok((workspace_id, serialized_workspace))
 9669    })
 9670}
 9671
 9672pub fn join_in_room_project(
 9673    project_id: u64,
 9674    follow_user_id: u64,
 9675    app_state: Arc<AppState>,
 9676    cx: &mut App,
 9677) -> Task<Result<()>> {
 9678    let windows = cx.windows();
 9679    cx.spawn(async move |cx| {
 9680        let existing_window_and_workspace: Option<(
 9681            WindowHandle<MultiWorkspace>,
 9682            Entity<Workspace>,
 9683        )> = windows.into_iter().find_map(|window_handle| {
 9684            window_handle
 9685                .downcast::<MultiWorkspace>()
 9686                .and_then(|window_handle| {
 9687                    window_handle
 9688                        .update(cx, |multi_workspace, _window, cx| {
 9689                            for workspace in multi_workspace.workspaces() {
 9690                                if workspace.read(cx).project().read(cx).remote_id()
 9691                                    == Some(project_id)
 9692                                {
 9693                                    return Some((window_handle, workspace.clone()));
 9694                                }
 9695                            }
 9696                            None
 9697                        })
 9698                        .unwrap_or(None)
 9699                })
 9700        });
 9701
 9702        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9703            existing_window_and_workspace
 9704        {
 9705            existing_window
 9706                .update(cx, |multi_workspace, _, cx| {
 9707                    multi_workspace.activate(target_workspace, cx);
 9708                })
 9709                .ok();
 9710            existing_window
 9711        } else {
 9712            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9713            let project = cx
 9714                .update(|cx| {
 9715                    active_call.0.join_project(
 9716                        project_id,
 9717                        app_state.languages.clone(),
 9718                        app_state.fs.clone(),
 9719                        cx,
 9720                    )
 9721                })
 9722                .await?;
 9723
 9724            let window_bounds_override = window_bounds_env_override();
 9725            cx.update(|cx| {
 9726                let mut options = (app_state.build_window_options)(None, cx);
 9727                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9728                cx.open_window(options, |window, cx| {
 9729                    let workspace = cx.new(|cx| {
 9730                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9731                    });
 9732                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9733                })
 9734            })?
 9735        };
 9736
 9737        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9738            cx.activate(true);
 9739            window.activate_window();
 9740
 9741            // We set the active workspace above, so this is the correct workspace.
 9742            let workspace = multi_workspace.workspace().clone();
 9743            workspace.update(cx, |workspace, cx| {
 9744                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9745                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9746                    .or_else(|| {
 9747                        // If we couldn't follow the given user, follow the host instead.
 9748                        let collaborator = workspace
 9749                            .project()
 9750                            .read(cx)
 9751                            .collaborators()
 9752                            .values()
 9753                            .find(|collaborator| collaborator.is_host)?;
 9754                        Some(collaborator.peer_id)
 9755                    });
 9756
 9757                if let Some(follow_peer_id) = follow_peer_id {
 9758                    workspace.follow(follow_peer_id, window, cx);
 9759                }
 9760            });
 9761        })?;
 9762
 9763        anyhow::Ok(())
 9764    })
 9765}
 9766
 9767pub fn reload(cx: &mut App) {
 9768    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9769    let mut workspace_windows = cx
 9770        .windows()
 9771        .into_iter()
 9772        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9773        .collect::<Vec<_>>();
 9774
 9775    // If multiple windows have unsaved changes, and need a save prompt,
 9776    // prompt in the active window before switching to a different window.
 9777    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9778
 9779    let mut prompt = None;
 9780    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9781        prompt = window
 9782            .update(cx, |_, window, cx| {
 9783                window.prompt(
 9784                    PromptLevel::Info,
 9785                    "Are you sure you want to restart?",
 9786                    None,
 9787                    &["Restart", "Cancel"],
 9788                    cx,
 9789                )
 9790            })
 9791            .ok();
 9792    }
 9793
 9794    cx.spawn(async move |cx| {
 9795        if let Some(prompt) = prompt {
 9796            let answer = prompt.await?;
 9797            if answer != 0 {
 9798                return anyhow::Ok(());
 9799            }
 9800        }
 9801
 9802        // If the user cancels any save prompt, then keep the app open.
 9803        for window in workspace_windows {
 9804            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9805                let workspace = multi_workspace.workspace().clone();
 9806                workspace.update(cx, |workspace, cx| {
 9807                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9808                })
 9809            }) && !should_close.await?
 9810            {
 9811                return anyhow::Ok(());
 9812            }
 9813        }
 9814        cx.update(|cx| cx.restart());
 9815        anyhow::Ok(())
 9816    })
 9817    .detach_and_log_err(cx);
 9818}
 9819
 9820fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9821    let mut parts = value.split(',');
 9822    let x: usize = parts.next()?.parse().ok()?;
 9823    let y: usize = parts.next()?.parse().ok()?;
 9824    Some(point(px(x as f32), px(y as f32)))
 9825}
 9826
 9827fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9828    let mut parts = value.split(',');
 9829    let width: usize = parts.next()?.parse().ok()?;
 9830    let height: usize = parts.next()?.parse().ok()?;
 9831    Some(size(px(width as f32), px(height as f32)))
 9832}
 9833
 9834/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9835/// appropriate.
 9836///
 9837/// The `border_radius_tiling` parameter allows overriding which corners get
 9838/// rounded, independently of the actual window tiling state. This is used
 9839/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9840/// we want square corners on the left (so the sidebar appears flush with the
 9841/// window edge) but we still need the shadow padding for proper visual
 9842/// appearance. Unlike actual window tiling, this only affects border radius -
 9843/// not padding or shadows.
 9844pub fn client_side_decorations(
 9845    element: impl IntoElement,
 9846    window: &mut Window,
 9847    cx: &mut App,
 9848    border_radius_tiling: Tiling,
 9849) -> Stateful<Div> {
 9850    const BORDER_SIZE: Pixels = px(1.0);
 9851    let decorations = window.window_decorations();
 9852    let tiling = match decorations {
 9853        Decorations::Server => Tiling::default(),
 9854        Decorations::Client { tiling } => tiling,
 9855    };
 9856
 9857    match decorations {
 9858        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9859        Decorations::Server => window.set_client_inset(px(0.0)),
 9860    }
 9861
 9862    struct GlobalResizeEdge(ResizeEdge);
 9863    impl Global for GlobalResizeEdge {}
 9864
 9865    div()
 9866        .id("window-backdrop")
 9867        .bg(transparent_black())
 9868        .map(|div| match decorations {
 9869            Decorations::Server => div,
 9870            Decorations::Client { .. } => div
 9871                .when(
 9872                    !(tiling.top
 9873                        || tiling.right
 9874                        || border_radius_tiling.top
 9875                        || border_radius_tiling.right),
 9876                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9877                )
 9878                .when(
 9879                    !(tiling.top
 9880                        || tiling.left
 9881                        || border_radius_tiling.top
 9882                        || border_radius_tiling.left),
 9883                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9884                )
 9885                .when(
 9886                    !(tiling.bottom
 9887                        || tiling.right
 9888                        || border_radius_tiling.bottom
 9889                        || border_radius_tiling.right),
 9890                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9891                )
 9892                .when(
 9893                    !(tiling.bottom
 9894                        || tiling.left
 9895                        || border_radius_tiling.bottom
 9896                        || border_radius_tiling.left),
 9897                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9898                )
 9899                .when(!tiling.top, |div| {
 9900                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9901                })
 9902                .when(!tiling.bottom, |div| {
 9903                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9904                })
 9905                .when(!tiling.left, |div| {
 9906                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9907                })
 9908                .when(!tiling.right, |div| {
 9909                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9910                })
 9911                .on_mouse_move(move |e, window, cx| {
 9912                    let size = window.window_bounds().get_bounds().size;
 9913                    let pos = e.position;
 9914
 9915                    let new_edge =
 9916                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9917
 9918                    let edge = cx.try_global::<GlobalResizeEdge>();
 9919                    if new_edge != edge.map(|edge| edge.0) {
 9920                        window
 9921                            .window_handle()
 9922                            .update(cx, |workspace, _, cx| {
 9923                                cx.notify(workspace.entity_id());
 9924                            })
 9925                            .ok();
 9926                    }
 9927                })
 9928                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9929                    let size = window.window_bounds().get_bounds().size;
 9930                    let pos = e.position;
 9931
 9932                    let edge = match resize_edge(
 9933                        pos,
 9934                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9935                        size,
 9936                        tiling,
 9937                    ) {
 9938                        Some(value) => value,
 9939                        None => return,
 9940                    };
 9941
 9942                    window.start_window_resize(edge);
 9943                }),
 9944        })
 9945        .size_full()
 9946        .child(
 9947            div()
 9948                .cursor(CursorStyle::Arrow)
 9949                .map(|div| match decorations {
 9950                    Decorations::Server => div,
 9951                    Decorations::Client { .. } => div
 9952                        .border_color(cx.theme().colors().border)
 9953                        .when(
 9954                            !(tiling.top
 9955                                || tiling.right
 9956                                || border_radius_tiling.top
 9957                                || border_radius_tiling.right),
 9958                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9959                        )
 9960                        .when(
 9961                            !(tiling.top
 9962                                || tiling.left
 9963                                || border_radius_tiling.top
 9964                                || border_radius_tiling.left),
 9965                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9966                        )
 9967                        .when(
 9968                            !(tiling.bottom
 9969                                || tiling.right
 9970                                || border_radius_tiling.bottom
 9971                                || border_radius_tiling.right),
 9972                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9973                        )
 9974                        .when(
 9975                            !(tiling.bottom
 9976                                || tiling.left
 9977                                || border_radius_tiling.bottom
 9978                                || border_radius_tiling.left),
 9979                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9980                        )
 9981                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9982                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9983                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9984                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9985                        .when(!tiling.is_tiled(), |div| {
 9986                            div.shadow(vec![gpui::BoxShadow {
 9987                                color: Hsla {
 9988                                    h: 0.,
 9989                                    s: 0.,
 9990                                    l: 0.,
 9991                                    a: 0.4,
 9992                                },
 9993                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9994                                spread_radius: px(0.),
 9995                                offset: point(px(0.0), px(0.0)),
 9996                            }])
 9997                        }),
 9998                })
 9999                .on_mouse_move(|_e, _, cx| {
10000                    cx.stop_propagation();
10001                })
10002                .size_full()
10003                .child(element),
10004        )
10005        .map(|div| match decorations {
10006            Decorations::Server => div,
10007            Decorations::Client { tiling, .. } => div.child(
10008                canvas(
10009                    |_bounds, window, _| {
10010                        window.insert_hitbox(
10011                            Bounds::new(
10012                                point(px(0.0), px(0.0)),
10013                                window.window_bounds().get_bounds().size,
10014                            ),
10015                            HitboxBehavior::Normal,
10016                        )
10017                    },
10018                    move |_bounds, hitbox, window, cx| {
10019                        let mouse = window.mouse_position();
10020                        let size = window.window_bounds().get_bounds().size;
10021                        let Some(edge) =
10022                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10023                        else {
10024                            return;
10025                        };
10026                        cx.set_global(GlobalResizeEdge(edge));
10027                        window.set_cursor_style(
10028                            match edge {
10029                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10030                                ResizeEdge::Left | ResizeEdge::Right => {
10031                                    CursorStyle::ResizeLeftRight
10032                                }
10033                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10034                                    CursorStyle::ResizeUpLeftDownRight
10035                                }
10036                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10037                                    CursorStyle::ResizeUpRightDownLeft
10038                                }
10039                            },
10040                            &hitbox,
10041                        );
10042                    },
10043                )
10044                .size_full()
10045                .absolute(),
10046            ),
10047        })
10048}
10049
10050fn resize_edge(
10051    pos: Point<Pixels>,
10052    shadow_size: Pixels,
10053    window_size: Size<Pixels>,
10054    tiling: Tiling,
10055) -> Option<ResizeEdge> {
10056    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10057    if bounds.contains(&pos) {
10058        return None;
10059    }
10060
10061    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10062    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10063    if !tiling.top && top_left_bounds.contains(&pos) {
10064        return Some(ResizeEdge::TopLeft);
10065    }
10066
10067    let top_right_bounds = Bounds::new(
10068        Point::new(window_size.width - corner_size.width, px(0.)),
10069        corner_size,
10070    );
10071    if !tiling.top && top_right_bounds.contains(&pos) {
10072        return Some(ResizeEdge::TopRight);
10073    }
10074
10075    let bottom_left_bounds = Bounds::new(
10076        Point::new(px(0.), window_size.height - corner_size.height),
10077        corner_size,
10078    );
10079    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10080        return Some(ResizeEdge::BottomLeft);
10081    }
10082
10083    let bottom_right_bounds = Bounds::new(
10084        Point::new(
10085            window_size.width - corner_size.width,
10086            window_size.height - corner_size.height,
10087        ),
10088        corner_size,
10089    );
10090    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10091        return Some(ResizeEdge::BottomRight);
10092    }
10093
10094    if !tiling.top && pos.y < shadow_size {
10095        Some(ResizeEdge::Top)
10096    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10097        Some(ResizeEdge::Bottom)
10098    } else if !tiling.left && pos.x < shadow_size {
10099        Some(ResizeEdge::Left)
10100    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10101        Some(ResizeEdge::Right)
10102    } else {
10103        None
10104    }
10105}
10106
10107fn join_pane_into_active(
10108    active_pane: &Entity<Pane>,
10109    pane: &Entity<Pane>,
10110    window: &mut Window,
10111    cx: &mut App,
10112) {
10113    if pane == active_pane {
10114    } else if pane.read(cx).items_len() == 0 {
10115        pane.update(cx, |_, cx| {
10116            cx.emit(pane::Event::Remove {
10117                focus_on_pane: None,
10118            });
10119        })
10120    } else {
10121        move_all_items(pane, active_pane, window, cx);
10122    }
10123}
10124
10125fn move_all_items(
10126    from_pane: &Entity<Pane>,
10127    to_pane: &Entity<Pane>,
10128    window: &mut Window,
10129    cx: &mut App,
10130) {
10131    let destination_is_different = from_pane != to_pane;
10132    let mut moved_items = 0;
10133    for (item_ix, item_handle) in from_pane
10134        .read(cx)
10135        .items()
10136        .enumerate()
10137        .map(|(ix, item)| (ix, item.clone()))
10138        .collect::<Vec<_>>()
10139    {
10140        let ix = item_ix - moved_items;
10141        if destination_is_different {
10142            // Close item from previous pane
10143            from_pane.update(cx, |source, cx| {
10144                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10145            });
10146            moved_items += 1;
10147        }
10148
10149        // This automatically removes duplicate items in the pane
10150        to_pane.update(cx, |destination, cx| {
10151            destination.add_item(item_handle, true, true, None, window, cx);
10152            window.focus(&destination.focus_handle(cx), cx)
10153        });
10154    }
10155}
10156
10157pub fn move_item(
10158    source: &Entity<Pane>,
10159    destination: &Entity<Pane>,
10160    item_id_to_move: EntityId,
10161    destination_index: usize,
10162    activate: bool,
10163    window: &mut Window,
10164    cx: &mut App,
10165) {
10166    let Some((item_ix, item_handle)) = source
10167        .read(cx)
10168        .items()
10169        .enumerate()
10170        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10171        .map(|(ix, item)| (ix, item.clone()))
10172    else {
10173        // Tab was closed during drag
10174        return;
10175    };
10176
10177    if source != destination {
10178        // Close item from previous pane
10179        source.update(cx, |source, cx| {
10180            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10181        });
10182    }
10183
10184    // This automatically removes duplicate items in the pane
10185    destination.update(cx, |destination, cx| {
10186        destination.add_item_inner(
10187            item_handle,
10188            activate,
10189            activate,
10190            activate,
10191            Some(destination_index),
10192            window,
10193            cx,
10194        );
10195        if activate {
10196            window.focus(&destination.focus_handle(cx), cx)
10197        }
10198    });
10199}
10200
10201pub fn move_active_item(
10202    source: &Entity<Pane>,
10203    destination: &Entity<Pane>,
10204    focus_destination: bool,
10205    close_if_empty: bool,
10206    window: &mut Window,
10207    cx: &mut App,
10208) {
10209    if source == destination {
10210        return;
10211    }
10212    let Some(active_item) = source.read(cx).active_item() else {
10213        return;
10214    };
10215    source.update(cx, |source_pane, cx| {
10216        let item_id = active_item.item_id();
10217        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10218        destination.update(cx, |target_pane, cx| {
10219            target_pane.add_item(
10220                active_item,
10221                focus_destination,
10222                focus_destination,
10223                Some(target_pane.items_len()),
10224                window,
10225                cx,
10226            );
10227        });
10228    });
10229}
10230
10231pub fn clone_active_item(
10232    workspace_id: Option<WorkspaceId>,
10233    source: &Entity<Pane>,
10234    destination: &Entity<Pane>,
10235    focus_destination: bool,
10236    window: &mut Window,
10237    cx: &mut App,
10238) {
10239    if source == destination {
10240        return;
10241    }
10242    let Some(active_item) = source.read(cx).active_item() else {
10243        return;
10244    };
10245    if !active_item.can_split(cx) {
10246        return;
10247    }
10248    let destination = destination.downgrade();
10249    let task = active_item.clone_on_split(workspace_id, window, cx);
10250    window
10251        .spawn(cx, async move |cx| {
10252            let Some(clone) = task.await else {
10253                return;
10254            };
10255            destination
10256                .update_in(cx, |target_pane, window, cx| {
10257                    target_pane.add_item(
10258                        clone,
10259                        focus_destination,
10260                        focus_destination,
10261                        Some(target_pane.items_len()),
10262                        window,
10263                        cx,
10264                    );
10265                })
10266                .log_err();
10267        })
10268        .detach();
10269}
10270
10271#[derive(Debug)]
10272pub struct WorkspacePosition {
10273    pub window_bounds: Option<WindowBounds>,
10274    pub display: Option<Uuid>,
10275    pub centered_layout: bool,
10276}
10277
10278pub fn remote_workspace_position_from_db(
10279    connection_options: RemoteConnectionOptions,
10280    paths_to_open: &[PathBuf],
10281    cx: &App,
10282) -> Task<Result<WorkspacePosition>> {
10283    let paths = paths_to_open.to_vec();
10284    let db = WorkspaceDb::global(cx);
10285    let kvp = db::kvp::KeyValueStore::global(cx);
10286
10287    cx.background_spawn(async move {
10288        let remote_connection_id = db
10289            .get_or_create_remote_connection(connection_options)
10290            .await
10291            .context("fetching serialized ssh project")?;
10292        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10293
10294        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10295            (Some(WindowBounds::Windowed(bounds)), None)
10296        } else {
10297            let restorable_bounds = serialized_workspace
10298                .as_ref()
10299                .and_then(|workspace| {
10300                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10301                })
10302                .or_else(|| persistence::read_default_window_bounds(&kvp));
10303
10304            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10305                (Some(serialized_bounds), Some(serialized_display))
10306            } else {
10307                (None, None)
10308            }
10309        };
10310
10311        let centered_layout = serialized_workspace
10312            .as_ref()
10313            .map(|w| w.centered_layout)
10314            .unwrap_or(false);
10315
10316        Ok(WorkspacePosition {
10317            window_bounds,
10318            display,
10319            centered_layout,
10320        })
10321    })
10322}
10323
10324pub fn with_active_or_new_workspace(
10325    cx: &mut App,
10326    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10327) {
10328    match cx
10329        .active_window()
10330        .and_then(|w| w.downcast::<MultiWorkspace>())
10331    {
10332        Some(multi_workspace) => {
10333            cx.defer(move |cx| {
10334                multi_workspace
10335                    .update(cx, |multi_workspace, window, cx| {
10336                        let workspace = multi_workspace.workspace().clone();
10337                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10338                    })
10339                    .log_err();
10340            });
10341        }
10342        None => {
10343            let app_state = AppState::global(cx);
10344            if let Some(app_state) = app_state.upgrade() {
10345                open_new(
10346                    OpenOptions::default(),
10347                    app_state,
10348                    cx,
10349                    move |workspace, window, cx| f(workspace, window, cx),
10350                )
10351                .detach_and_log_err(cx);
10352            }
10353        }
10354    }
10355}
10356
10357/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10358/// key. This migration path only runs once per panel per workspace.
10359fn load_legacy_panel_size(
10360    panel_key: &str,
10361    dock_position: DockPosition,
10362    workspace: &Workspace,
10363    cx: &mut App,
10364) -> Option<Pixels> {
10365    #[derive(Deserialize)]
10366    struct LegacyPanelState {
10367        #[serde(default)]
10368        width: Option<Pixels>,
10369        #[serde(default)]
10370        height: Option<Pixels>,
10371    }
10372
10373    let workspace_id = workspace
10374        .database_id()
10375        .map(|id| i64::from(id).to_string())
10376        .or_else(|| workspace.session_id())?;
10377
10378    let legacy_key = match panel_key {
10379        "ProjectPanel" => {
10380            format!("{}-{:?}", "ProjectPanel", workspace_id)
10381        }
10382        "OutlinePanel" => {
10383            format!("{}-{:?}", "OutlinePanel", workspace_id)
10384        }
10385        "GitPanel" => {
10386            format!("{}-{:?}", "GitPanel", workspace_id)
10387        }
10388        "TerminalPanel" => {
10389            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10390        }
10391        _ => return None,
10392    };
10393
10394    let kvp = db::kvp::KeyValueStore::global(cx);
10395    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10396    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10397    let size = match dock_position {
10398        DockPosition::Bottom => state.height,
10399        DockPosition::Left | DockPosition::Right => state.width,
10400    }?;
10401
10402    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10403        .detach_and_log_err(cx);
10404
10405    Some(size)
10406}
10407
10408#[cfg(test)]
10409mod tests {
10410    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10411
10412    use super::*;
10413    use crate::{
10414        dock::{PanelEvent, test::TestPanel},
10415        item::{
10416            ItemBufferKind, ItemEvent,
10417            test::{TestItem, TestProjectItem},
10418        },
10419    };
10420    use fs::FakeFs;
10421    use gpui::{
10422        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10423        UpdateGlobal, VisualTestContext, px,
10424    };
10425    use project::{Project, ProjectEntryId};
10426    use serde_json::json;
10427    use settings::SettingsStore;
10428    use util::path;
10429    use util::rel_path::rel_path;
10430
10431    #[gpui::test]
10432    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10433        init_test(cx);
10434
10435        let fs = FakeFs::new(cx.executor());
10436        let project = Project::test(fs, [], cx).await;
10437        let (workspace, cx) =
10438            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10439
10440        // Adding an item with no ambiguity renders the tab without detail.
10441        let item1 = cx.new(|cx| {
10442            let mut item = TestItem::new(cx);
10443            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10444            item
10445        });
10446        workspace.update_in(cx, |workspace, window, cx| {
10447            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10448        });
10449        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10450
10451        // Adding an item that creates ambiguity increases the level of detail on
10452        // both tabs.
10453        let item2 = cx.new_window_entity(|_window, cx| {
10454            let mut item = TestItem::new(cx);
10455            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10456            item
10457        });
10458        workspace.update_in(cx, |workspace, window, cx| {
10459            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10460        });
10461        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10462        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10463
10464        // Adding an item that creates ambiguity increases the level of detail only
10465        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10466        // we stop at the highest detail available.
10467        let item3 = cx.new(|cx| {
10468            let mut item = TestItem::new(cx);
10469            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10470            item
10471        });
10472        workspace.update_in(cx, |workspace, window, cx| {
10473            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10474        });
10475        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10476        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10477        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10478    }
10479
10480    #[gpui::test]
10481    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10482        init_test(cx);
10483
10484        let fs = FakeFs::new(cx.executor());
10485        fs.insert_tree(
10486            "/root1",
10487            json!({
10488                "one.txt": "",
10489                "two.txt": "",
10490            }),
10491        )
10492        .await;
10493        fs.insert_tree(
10494            "/root2",
10495            json!({
10496                "three.txt": "",
10497            }),
10498        )
10499        .await;
10500
10501        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10502        let (workspace, cx) =
10503            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10504        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10505        let worktree_id = project.update(cx, |project, cx| {
10506            project.worktrees(cx).next().unwrap().read(cx).id()
10507        });
10508
10509        let item1 = cx.new(|cx| {
10510            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10511        });
10512        let item2 = cx.new(|cx| {
10513            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10514        });
10515
10516        // Add an item to an empty pane
10517        workspace.update_in(cx, |workspace, window, cx| {
10518            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10519        });
10520        project.update(cx, |project, cx| {
10521            assert_eq!(
10522                project.active_entry(),
10523                project
10524                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10525                    .map(|e| e.id)
10526            );
10527        });
10528        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10529
10530        // Add a second item to a non-empty pane
10531        workspace.update_in(cx, |workspace, window, cx| {
10532            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10533        });
10534        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10535        project.update(cx, |project, cx| {
10536            assert_eq!(
10537                project.active_entry(),
10538                project
10539                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10540                    .map(|e| e.id)
10541            );
10542        });
10543
10544        // Close the active item
10545        pane.update_in(cx, |pane, window, cx| {
10546            pane.close_active_item(&Default::default(), window, cx)
10547        })
10548        .await
10549        .unwrap();
10550        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10551        project.update(cx, |project, cx| {
10552            assert_eq!(
10553                project.active_entry(),
10554                project
10555                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10556                    .map(|e| e.id)
10557            );
10558        });
10559
10560        // Add a project folder
10561        project
10562            .update(cx, |project, cx| {
10563                project.find_or_create_worktree("root2", true, cx)
10564            })
10565            .await
10566            .unwrap();
10567        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10568
10569        // Remove a project folder
10570        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10571        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10572    }
10573
10574    #[gpui::test]
10575    async fn test_close_window(cx: &mut TestAppContext) {
10576        init_test(cx);
10577
10578        let fs = FakeFs::new(cx.executor());
10579        fs.insert_tree("/root", json!({ "one": "" })).await;
10580
10581        let project = Project::test(fs, ["root".as_ref()], cx).await;
10582        let (workspace, cx) =
10583            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10584
10585        // When there are no dirty items, there's nothing to do.
10586        let item1 = cx.new(TestItem::new);
10587        workspace.update_in(cx, |w, window, cx| {
10588            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10589        });
10590        let task = workspace.update_in(cx, |w, window, cx| {
10591            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10592        });
10593        assert!(task.await.unwrap());
10594
10595        // When there are dirty untitled items, prompt to save each one. If the user
10596        // cancels any prompt, then abort.
10597        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10598        let item3 = cx.new(|cx| {
10599            TestItem::new(cx)
10600                .with_dirty(true)
10601                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10602        });
10603        workspace.update_in(cx, |w, window, cx| {
10604            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10605            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10606        });
10607        let task = workspace.update_in(cx, |w, window, cx| {
10608            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10609        });
10610        cx.executor().run_until_parked();
10611        cx.simulate_prompt_answer("Cancel"); // cancel save all
10612        cx.executor().run_until_parked();
10613        assert!(!cx.has_pending_prompt());
10614        assert!(!task.await.unwrap());
10615    }
10616
10617    #[gpui::test]
10618    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10619        init_test(cx);
10620
10621        let fs = FakeFs::new(cx.executor());
10622        fs.insert_tree("/root", json!({ "one": "" })).await;
10623
10624        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10625        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10626        let multi_workspace_handle =
10627            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10628        cx.run_until_parked();
10629
10630        let workspace_a = multi_workspace_handle
10631            .read_with(cx, |mw, _| mw.workspace().clone())
10632            .unwrap();
10633
10634        let workspace_b = multi_workspace_handle
10635            .update(cx, |mw, window, cx| {
10636                mw.test_add_workspace(project_b, window, cx)
10637            })
10638            .unwrap();
10639
10640        // Activate workspace A
10641        multi_workspace_handle
10642            .update(cx, |mw, window, cx| {
10643                mw.activate_index(0, window, cx);
10644            })
10645            .unwrap();
10646
10647        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10648
10649        // Workspace A has a clean item
10650        let item_a = cx.new(TestItem::new);
10651        workspace_a.update_in(cx, |w, window, cx| {
10652            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10653        });
10654
10655        // Workspace B has a dirty item
10656        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10657        workspace_b.update_in(cx, |w, window, cx| {
10658            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10659        });
10660
10661        // Verify workspace A is active
10662        multi_workspace_handle
10663            .read_with(cx, |mw, _| {
10664                assert_eq!(mw.active_workspace_index(), 0);
10665            })
10666            .unwrap();
10667
10668        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10669        multi_workspace_handle
10670            .update(cx, |mw, window, cx| {
10671                mw.close_window(&CloseWindow, window, cx);
10672            })
10673            .unwrap();
10674        cx.run_until_parked();
10675
10676        // Workspace B should now be active since it has dirty items that need attention
10677        multi_workspace_handle
10678            .read_with(cx, |mw, _| {
10679                assert_eq!(
10680                    mw.active_workspace_index(),
10681                    1,
10682                    "workspace B should be activated when it prompts"
10683                );
10684            })
10685            .unwrap();
10686
10687        // User cancels the save prompt from workspace B
10688        cx.simulate_prompt_answer("Cancel");
10689        cx.run_until_parked();
10690
10691        // Window should still exist because workspace B's close was cancelled
10692        assert!(
10693            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10694            "window should still exist after cancelling one workspace's close"
10695        );
10696    }
10697
10698    #[gpui::test]
10699    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10700        init_test(cx);
10701
10702        // Register TestItem as a serializable item
10703        cx.update(|cx| {
10704            register_serializable_item::<TestItem>(cx);
10705        });
10706
10707        let fs = FakeFs::new(cx.executor());
10708        fs.insert_tree("/root", json!({ "one": "" })).await;
10709
10710        let project = Project::test(fs, ["root".as_ref()], cx).await;
10711        let (workspace, cx) =
10712            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10713
10714        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10715        let item1 = cx.new(|cx| {
10716            TestItem::new(cx)
10717                .with_dirty(true)
10718                .with_serialize(|| Some(Task::ready(Ok(()))))
10719        });
10720        let item2 = cx.new(|cx| {
10721            TestItem::new(cx)
10722                .with_dirty(true)
10723                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10724                .with_serialize(|| Some(Task::ready(Ok(()))))
10725        });
10726        workspace.update_in(cx, |w, window, cx| {
10727            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10728            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10729        });
10730        let task = workspace.update_in(cx, |w, window, cx| {
10731            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10732        });
10733        assert!(task.await.unwrap());
10734    }
10735
10736    #[gpui::test]
10737    async fn test_close_pane_items(cx: &mut TestAppContext) {
10738        init_test(cx);
10739
10740        let fs = FakeFs::new(cx.executor());
10741
10742        let project = Project::test(fs, None, cx).await;
10743        let (workspace, cx) =
10744            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10745
10746        let item1 = cx.new(|cx| {
10747            TestItem::new(cx)
10748                .with_dirty(true)
10749                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10750        });
10751        let item2 = cx.new(|cx| {
10752            TestItem::new(cx)
10753                .with_dirty(true)
10754                .with_conflict(true)
10755                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10756        });
10757        let item3 = cx.new(|cx| {
10758            TestItem::new(cx)
10759                .with_dirty(true)
10760                .with_conflict(true)
10761                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10762        });
10763        let item4 = cx.new(|cx| {
10764            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10765                let project_item = TestProjectItem::new_untitled(cx);
10766                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10767                project_item
10768            }])
10769        });
10770        let pane = workspace.update_in(cx, |workspace, window, cx| {
10771            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10772            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10773            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10774            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10775            workspace.active_pane().clone()
10776        });
10777
10778        let close_items = pane.update_in(cx, |pane, window, cx| {
10779            pane.activate_item(1, true, true, window, cx);
10780            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10781            let item1_id = item1.item_id();
10782            let item3_id = item3.item_id();
10783            let item4_id = item4.item_id();
10784            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10785                [item1_id, item3_id, item4_id].contains(&id)
10786            })
10787        });
10788        cx.executor().run_until_parked();
10789
10790        assert!(cx.has_pending_prompt());
10791        cx.simulate_prompt_answer("Save all");
10792
10793        cx.executor().run_until_parked();
10794
10795        // Item 1 is saved. There's a prompt to save item 3.
10796        pane.update(cx, |pane, cx| {
10797            assert_eq!(item1.read(cx).save_count, 1);
10798            assert_eq!(item1.read(cx).save_as_count, 0);
10799            assert_eq!(item1.read(cx).reload_count, 0);
10800            assert_eq!(pane.items_len(), 3);
10801            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10802        });
10803        assert!(cx.has_pending_prompt());
10804
10805        // Cancel saving item 3.
10806        cx.simulate_prompt_answer("Discard");
10807        cx.executor().run_until_parked();
10808
10809        // Item 3 is reloaded. There's a prompt to save item 4.
10810        pane.update(cx, |pane, cx| {
10811            assert_eq!(item3.read(cx).save_count, 0);
10812            assert_eq!(item3.read(cx).save_as_count, 0);
10813            assert_eq!(item3.read(cx).reload_count, 1);
10814            assert_eq!(pane.items_len(), 2);
10815            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10816        });
10817
10818        // There's a prompt for a path for item 4.
10819        cx.simulate_new_path_selection(|_| Some(Default::default()));
10820        close_items.await.unwrap();
10821
10822        // The requested items are closed.
10823        pane.update(cx, |pane, cx| {
10824            assert_eq!(item4.read(cx).save_count, 0);
10825            assert_eq!(item4.read(cx).save_as_count, 1);
10826            assert_eq!(item4.read(cx).reload_count, 0);
10827            assert_eq!(pane.items_len(), 1);
10828            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10829        });
10830    }
10831
10832    #[gpui::test]
10833    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10834        init_test(cx);
10835
10836        let fs = FakeFs::new(cx.executor());
10837        let project = Project::test(fs, [], cx).await;
10838        let (workspace, cx) =
10839            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10840
10841        // Create several workspace items with single project entries, and two
10842        // workspace items with multiple project entries.
10843        let single_entry_items = (0..=4)
10844            .map(|project_entry_id| {
10845                cx.new(|cx| {
10846                    TestItem::new(cx)
10847                        .with_dirty(true)
10848                        .with_project_items(&[dirty_project_item(
10849                            project_entry_id,
10850                            &format!("{project_entry_id}.txt"),
10851                            cx,
10852                        )])
10853                })
10854            })
10855            .collect::<Vec<_>>();
10856        let item_2_3 = cx.new(|cx| {
10857            TestItem::new(cx)
10858                .with_dirty(true)
10859                .with_buffer_kind(ItemBufferKind::Multibuffer)
10860                .with_project_items(&[
10861                    single_entry_items[2].read(cx).project_items[0].clone(),
10862                    single_entry_items[3].read(cx).project_items[0].clone(),
10863                ])
10864        });
10865        let item_3_4 = cx.new(|cx| {
10866            TestItem::new(cx)
10867                .with_dirty(true)
10868                .with_buffer_kind(ItemBufferKind::Multibuffer)
10869                .with_project_items(&[
10870                    single_entry_items[3].read(cx).project_items[0].clone(),
10871                    single_entry_items[4].read(cx).project_items[0].clone(),
10872                ])
10873        });
10874
10875        // Create two panes that contain the following project entries:
10876        //   left pane:
10877        //     multi-entry items:   (2, 3)
10878        //     single-entry items:  0, 2, 3, 4
10879        //   right pane:
10880        //     single-entry items:  4, 1
10881        //     multi-entry items:   (3, 4)
10882        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10883            let left_pane = workspace.active_pane().clone();
10884            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10885            workspace.add_item_to_active_pane(
10886                single_entry_items[0].boxed_clone(),
10887                None,
10888                true,
10889                window,
10890                cx,
10891            );
10892            workspace.add_item_to_active_pane(
10893                single_entry_items[2].boxed_clone(),
10894                None,
10895                true,
10896                window,
10897                cx,
10898            );
10899            workspace.add_item_to_active_pane(
10900                single_entry_items[3].boxed_clone(),
10901                None,
10902                true,
10903                window,
10904                cx,
10905            );
10906            workspace.add_item_to_active_pane(
10907                single_entry_items[4].boxed_clone(),
10908                None,
10909                true,
10910                window,
10911                cx,
10912            );
10913
10914            let right_pane =
10915                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10916
10917            let boxed_clone = single_entry_items[1].boxed_clone();
10918            let right_pane = window.spawn(cx, async move |cx| {
10919                right_pane.await.inspect(|right_pane| {
10920                    right_pane
10921                        .update_in(cx, |pane, window, cx| {
10922                            pane.add_item(boxed_clone, true, true, None, window, cx);
10923                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10924                        })
10925                        .unwrap();
10926                })
10927            });
10928
10929            (left_pane, right_pane)
10930        });
10931        let right_pane = right_pane.await.unwrap();
10932        cx.focus(&right_pane);
10933
10934        let close = right_pane.update_in(cx, |pane, window, cx| {
10935            pane.close_all_items(&CloseAllItems::default(), window, cx)
10936                .unwrap()
10937        });
10938        cx.executor().run_until_parked();
10939
10940        let msg = cx.pending_prompt().unwrap().0;
10941        assert!(msg.contains("1.txt"));
10942        assert!(!msg.contains("2.txt"));
10943        assert!(!msg.contains("3.txt"));
10944        assert!(!msg.contains("4.txt"));
10945
10946        // With best-effort close, cancelling item 1 keeps it open but items 4
10947        // and (3,4) still close since their entries exist in left pane.
10948        cx.simulate_prompt_answer("Cancel");
10949        close.await;
10950
10951        right_pane.read_with(cx, |pane, _| {
10952            assert_eq!(pane.items_len(), 1);
10953        });
10954
10955        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10956        left_pane
10957            .update_in(cx, |left_pane, window, cx| {
10958                left_pane.close_item_by_id(
10959                    single_entry_items[3].entity_id(),
10960                    SaveIntent::Skip,
10961                    window,
10962                    cx,
10963                )
10964            })
10965            .await
10966            .unwrap();
10967
10968        let close = left_pane.update_in(cx, |pane, window, cx| {
10969            pane.close_all_items(&CloseAllItems::default(), window, cx)
10970                .unwrap()
10971        });
10972        cx.executor().run_until_parked();
10973
10974        let details = cx.pending_prompt().unwrap().1;
10975        assert!(details.contains("0.txt"));
10976        assert!(details.contains("3.txt"));
10977        assert!(details.contains("4.txt"));
10978        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10979        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10980        // assert!(!details.contains("2.txt"));
10981
10982        cx.simulate_prompt_answer("Save all");
10983        cx.executor().run_until_parked();
10984        close.await;
10985
10986        left_pane.read_with(cx, |pane, _| {
10987            assert_eq!(pane.items_len(), 0);
10988        });
10989    }
10990
10991    #[gpui::test]
10992    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10993        init_test(cx);
10994
10995        let fs = FakeFs::new(cx.executor());
10996        let project = Project::test(fs, [], cx).await;
10997        let (workspace, cx) =
10998            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10999        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11000
11001        let item = cx.new(|cx| {
11002            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11003        });
11004        let item_id = item.entity_id();
11005        workspace.update_in(cx, |workspace, window, cx| {
11006            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11007        });
11008
11009        // Autosave on window change.
11010        item.update(cx, |item, cx| {
11011            SettingsStore::update_global(cx, |settings, cx| {
11012                settings.update_user_settings(cx, |settings| {
11013                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
11014                })
11015            });
11016            item.is_dirty = true;
11017        });
11018
11019        // Deactivating the window saves the file.
11020        cx.deactivate_window();
11021        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11022
11023        // Re-activating the window doesn't save the file.
11024        cx.update(|window, _| window.activate_window());
11025        cx.executor().run_until_parked();
11026        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11027
11028        // Autosave on focus change.
11029        item.update_in(cx, |item, window, cx| {
11030            cx.focus_self(window);
11031            SettingsStore::update_global(cx, |settings, cx| {
11032                settings.update_user_settings(cx, |settings| {
11033                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11034                })
11035            });
11036            item.is_dirty = true;
11037        });
11038        // Blurring the item saves the file.
11039        item.update_in(cx, |_, window, _| window.blur());
11040        cx.executor().run_until_parked();
11041        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11042
11043        // Deactivating the window still saves the file.
11044        item.update_in(cx, |item, window, cx| {
11045            cx.focus_self(window);
11046            item.is_dirty = true;
11047        });
11048        cx.deactivate_window();
11049        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11050
11051        // Autosave after delay.
11052        item.update(cx, |item, cx| {
11053            SettingsStore::update_global(cx, |settings, cx| {
11054                settings.update_user_settings(cx, |settings| {
11055                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11056                        milliseconds: 500.into(),
11057                    });
11058                })
11059            });
11060            item.is_dirty = true;
11061            cx.emit(ItemEvent::Edit);
11062        });
11063
11064        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11065        cx.executor().advance_clock(Duration::from_millis(250));
11066        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11067
11068        // After delay expires, the file is saved.
11069        cx.executor().advance_clock(Duration::from_millis(250));
11070        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11071
11072        // Autosave after delay, should save earlier than delay if tab is closed
11073        item.update(cx, |item, cx| {
11074            item.is_dirty = true;
11075            cx.emit(ItemEvent::Edit);
11076        });
11077        cx.executor().advance_clock(Duration::from_millis(250));
11078        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11079
11080        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11081        pane.update_in(cx, |pane, window, cx| {
11082            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11083        })
11084        .await
11085        .unwrap();
11086        assert!(!cx.has_pending_prompt());
11087        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11088
11089        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11090        workspace.update_in(cx, |workspace, window, cx| {
11091            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11092        });
11093        item.update_in(cx, |item, _window, cx| {
11094            item.is_dirty = true;
11095            for project_item in &mut item.project_items {
11096                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11097            }
11098        });
11099        cx.run_until_parked();
11100        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11101
11102        // Autosave on focus change, ensuring closing the tab counts as such.
11103        item.update(cx, |item, cx| {
11104            SettingsStore::update_global(cx, |settings, cx| {
11105                settings.update_user_settings(cx, |settings| {
11106                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11107                })
11108            });
11109            item.is_dirty = true;
11110            for project_item in &mut item.project_items {
11111                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11112            }
11113        });
11114
11115        pane.update_in(cx, |pane, window, cx| {
11116            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11117        })
11118        .await
11119        .unwrap();
11120        assert!(!cx.has_pending_prompt());
11121        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11122
11123        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11124        workspace.update_in(cx, |workspace, window, cx| {
11125            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11126        });
11127        item.update_in(cx, |item, window, cx| {
11128            item.project_items[0].update(cx, |item, _| {
11129                item.entry_id = None;
11130            });
11131            item.is_dirty = true;
11132            window.blur();
11133        });
11134        cx.run_until_parked();
11135        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11136
11137        // Ensure autosave is prevented for deleted files also when closing the buffer.
11138        let _close_items = pane.update_in(cx, |pane, window, cx| {
11139            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11140        });
11141        cx.run_until_parked();
11142        assert!(cx.has_pending_prompt());
11143        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11144    }
11145
11146    #[gpui::test]
11147    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11148        init_test(cx);
11149
11150        let fs = FakeFs::new(cx.executor());
11151        let project = Project::test(fs, [], cx).await;
11152        let (workspace, cx) =
11153            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11154
11155        // Create a multibuffer-like item with two child focus handles,
11156        // simulating individual buffer editors within a multibuffer.
11157        let item = cx.new(|cx| {
11158            TestItem::new(cx)
11159                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11160                .with_child_focus_handles(2, cx)
11161        });
11162        workspace.update_in(cx, |workspace, window, cx| {
11163            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11164        });
11165
11166        // Set autosave to OnFocusChange and focus the first child handle,
11167        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11168        item.update_in(cx, |item, window, cx| {
11169            SettingsStore::update_global(cx, |settings, cx| {
11170                settings.update_user_settings(cx, |settings| {
11171                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11172                })
11173            });
11174            item.is_dirty = true;
11175            window.focus(&item.child_focus_handles[0], cx);
11176        });
11177        cx.executor().run_until_parked();
11178        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11179
11180        // Moving focus from one child to another within the same item should
11181        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11182        item.update_in(cx, |item, window, cx| {
11183            window.focus(&item.child_focus_handles[1], cx);
11184        });
11185        cx.executor().run_until_parked();
11186        item.read_with(cx, |item, _| {
11187            assert_eq!(
11188                item.save_count, 0,
11189                "Switching focus between children within the same item should not autosave"
11190            );
11191        });
11192
11193        // Blurring the item saves the file. This is the core regression scenario:
11194        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11195        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11196        // the leaf is always a child focus handle, so `on_blur` never detected
11197        // focus leaving the item.
11198        item.update_in(cx, |_, window, _| window.blur());
11199        cx.executor().run_until_parked();
11200        item.read_with(cx, |item, _| {
11201            assert_eq!(
11202                item.save_count, 1,
11203                "Blurring should trigger autosave when focus was on a child of the item"
11204            );
11205        });
11206
11207        // Deactivating the window should also trigger autosave when a child of
11208        // the multibuffer item currently owns focus.
11209        item.update_in(cx, |item, window, cx| {
11210            item.is_dirty = true;
11211            window.focus(&item.child_focus_handles[0], cx);
11212        });
11213        cx.executor().run_until_parked();
11214        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11215
11216        cx.deactivate_window();
11217        item.read_with(cx, |item, _| {
11218            assert_eq!(
11219                item.save_count, 2,
11220                "Deactivating window should trigger autosave when focus was on a child"
11221            );
11222        });
11223    }
11224
11225    #[gpui::test]
11226    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11227        init_test(cx);
11228
11229        let fs = FakeFs::new(cx.executor());
11230
11231        let project = Project::test(fs, [], cx).await;
11232        let (workspace, cx) =
11233            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11234
11235        let item = cx.new(|cx| {
11236            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11237        });
11238        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11239        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11240        let toolbar_notify_count = Rc::new(RefCell::new(0));
11241
11242        workspace.update_in(cx, |workspace, window, cx| {
11243            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11244            let toolbar_notification_count = toolbar_notify_count.clone();
11245            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11246                *toolbar_notification_count.borrow_mut() += 1
11247            })
11248            .detach();
11249        });
11250
11251        pane.read_with(cx, |pane, _| {
11252            assert!(!pane.can_navigate_backward());
11253            assert!(!pane.can_navigate_forward());
11254        });
11255
11256        item.update_in(cx, |item, _, cx| {
11257            item.set_state("one".to_string(), cx);
11258        });
11259
11260        // Toolbar must be notified to re-render the navigation buttons
11261        assert_eq!(*toolbar_notify_count.borrow(), 1);
11262
11263        pane.read_with(cx, |pane, _| {
11264            assert!(pane.can_navigate_backward());
11265            assert!(!pane.can_navigate_forward());
11266        });
11267
11268        workspace
11269            .update_in(cx, |workspace, window, cx| {
11270                workspace.go_back(pane.downgrade(), window, cx)
11271            })
11272            .await
11273            .unwrap();
11274
11275        assert_eq!(*toolbar_notify_count.borrow(), 2);
11276        pane.read_with(cx, |pane, _| {
11277            assert!(!pane.can_navigate_backward());
11278            assert!(pane.can_navigate_forward());
11279        });
11280    }
11281
11282    /// Tests that the navigation history deduplicates entries for the same item.
11283    ///
11284    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11285    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11286    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11287    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11288    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11289    ///
11290    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11291    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11292    #[gpui::test]
11293    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11294        init_test(cx);
11295
11296        let fs = FakeFs::new(cx.executor());
11297        let project = Project::test(fs, [], cx).await;
11298        let (workspace, cx) =
11299            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11300
11301        let item_a = cx.new(|cx| {
11302            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11303        });
11304        let item_b = cx.new(|cx| {
11305            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11306        });
11307        let item_c = cx.new(|cx| {
11308            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11309        });
11310
11311        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11312
11313        workspace.update_in(cx, |workspace, window, cx| {
11314            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11315            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11316            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11317        });
11318
11319        workspace.update_in(cx, |workspace, window, cx| {
11320            workspace.activate_item(&item_a, false, false, window, cx);
11321        });
11322        cx.run_until_parked();
11323
11324        workspace.update_in(cx, |workspace, window, cx| {
11325            workspace.activate_item(&item_b, false, false, window, cx);
11326        });
11327        cx.run_until_parked();
11328
11329        workspace.update_in(cx, |workspace, window, cx| {
11330            workspace.activate_item(&item_a, false, false, window, cx);
11331        });
11332        cx.run_until_parked();
11333
11334        workspace.update_in(cx, |workspace, window, cx| {
11335            workspace.activate_item(&item_b, false, false, window, cx);
11336        });
11337        cx.run_until_parked();
11338
11339        workspace.update_in(cx, |workspace, window, cx| {
11340            workspace.activate_item(&item_a, false, false, window, cx);
11341        });
11342        cx.run_until_parked();
11343
11344        workspace.update_in(cx, |workspace, window, cx| {
11345            workspace.activate_item(&item_b, false, false, window, cx);
11346        });
11347        cx.run_until_parked();
11348
11349        workspace.update_in(cx, |workspace, window, cx| {
11350            workspace.activate_item(&item_c, false, false, window, cx);
11351        });
11352        cx.run_until_parked();
11353
11354        let backward_count = pane.read_with(cx, |pane, cx| {
11355            let mut count = 0;
11356            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11357                count += 1;
11358            });
11359            count
11360        });
11361        assert!(
11362            backward_count <= 4,
11363            "Should have at most 4 entries, got {}",
11364            backward_count
11365        );
11366
11367        workspace
11368            .update_in(cx, |workspace, window, cx| {
11369                workspace.go_back(pane.downgrade(), window, cx)
11370            })
11371            .await
11372            .unwrap();
11373
11374        let active_item = workspace.read_with(cx, |workspace, cx| {
11375            workspace.active_item(cx).unwrap().item_id()
11376        });
11377        assert_eq!(
11378            active_item,
11379            item_b.entity_id(),
11380            "After first go_back, should be at item B"
11381        );
11382
11383        workspace
11384            .update_in(cx, |workspace, window, cx| {
11385                workspace.go_back(pane.downgrade(), window, cx)
11386            })
11387            .await
11388            .unwrap();
11389
11390        let active_item = workspace.read_with(cx, |workspace, cx| {
11391            workspace.active_item(cx).unwrap().item_id()
11392        });
11393        assert_eq!(
11394            active_item,
11395            item_a.entity_id(),
11396            "After second go_back, should be at item A"
11397        );
11398
11399        pane.read_with(cx, |pane, _| {
11400            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11401        });
11402    }
11403
11404    #[gpui::test]
11405    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11406        init_test(cx);
11407        let fs = FakeFs::new(cx.executor());
11408        let project = Project::test(fs, [], cx).await;
11409        let (multi_workspace, cx) =
11410            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11411        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11412
11413        workspace.update_in(cx, |workspace, window, cx| {
11414            let first_item = cx.new(|cx| {
11415                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11416            });
11417            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11418            workspace.split_pane(
11419                workspace.active_pane().clone(),
11420                SplitDirection::Right,
11421                window,
11422                cx,
11423            );
11424            workspace.split_pane(
11425                workspace.active_pane().clone(),
11426                SplitDirection::Right,
11427                window,
11428                cx,
11429            );
11430        });
11431
11432        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11433            let panes = workspace.center.panes();
11434            assert!(panes.len() >= 2);
11435            (
11436                panes.first().expect("at least one pane").entity_id(),
11437                panes.last().expect("at least one pane").entity_id(),
11438            )
11439        });
11440
11441        workspace.update_in(cx, |workspace, window, cx| {
11442            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11443        });
11444        workspace.update(cx, |workspace, _| {
11445            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11446            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11447        });
11448
11449        cx.dispatch_action(ActivateLastPane);
11450
11451        workspace.update(cx, |workspace, _| {
11452            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11453        });
11454    }
11455
11456    #[gpui::test]
11457    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11458        init_test(cx);
11459        let fs = FakeFs::new(cx.executor());
11460
11461        let project = Project::test(fs, [], cx).await;
11462        let (workspace, cx) =
11463            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11464
11465        let panel = workspace.update_in(cx, |workspace, window, cx| {
11466            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11467            workspace.add_panel(panel.clone(), window, cx);
11468
11469            workspace
11470                .right_dock()
11471                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11472
11473            panel
11474        });
11475
11476        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11477        pane.update_in(cx, |pane, window, cx| {
11478            let item = cx.new(TestItem::new);
11479            pane.add_item(Box::new(item), true, true, None, window, cx);
11480        });
11481
11482        // Transfer focus from center to panel
11483        workspace.update_in(cx, |workspace, window, cx| {
11484            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11485        });
11486
11487        workspace.update_in(cx, |workspace, window, cx| {
11488            assert!(workspace.right_dock().read(cx).is_open());
11489            assert!(!panel.is_zoomed(window, cx));
11490            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11491        });
11492
11493        // Transfer focus from panel to center
11494        workspace.update_in(cx, |workspace, window, cx| {
11495            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11496        });
11497
11498        workspace.update_in(cx, |workspace, window, cx| {
11499            assert!(workspace.right_dock().read(cx).is_open());
11500            assert!(!panel.is_zoomed(window, cx));
11501            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11502            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11503        });
11504
11505        // Close the dock
11506        workspace.update_in(cx, |workspace, window, cx| {
11507            workspace.toggle_dock(DockPosition::Right, window, cx);
11508        });
11509
11510        workspace.update_in(cx, |workspace, window, cx| {
11511            assert!(!workspace.right_dock().read(cx).is_open());
11512            assert!(!panel.is_zoomed(window, cx));
11513            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11514            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11515        });
11516
11517        // Open the dock
11518        workspace.update_in(cx, |workspace, window, cx| {
11519            workspace.toggle_dock(DockPosition::Right, window, cx);
11520        });
11521
11522        workspace.update_in(cx, |workspace, window, cx| {
11523            assert!(workspace.right_dock().read(cx).is_open());
11524            assert!(!panel.is_zoomed(window, cx));
11525            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11526        });
11527
11528        // Focus and zoom panel
11529        panel.update_in(cx, |panel, window, cx| {
11530            cx.focus_self(window);
11531            panel.set_zoomed(true, window, cx)
11532        });
11533
11534        workspace.update_in(cx, |workspace, window, cx| {
11535            assert!(workspace.right_dock().read(cx).is_open());
11536            assert!(panel.is_zoomed(window, cx));
11537            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11538        });
11539
11540        // Transfer focus to the center closes the dock
11541        workspace.update_in(cx, |workspace, window, cx| {
11542            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11543        });
11544
11545        workspace.update_in(cx, |workspace, window, cx| {
11546            assert!(!workspace.right_dock().read(cx).is_open());
11547            assert!(panel.is_zoomed(window, cx));
11548            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11549        });
11550
11551        // Transferring focus back to the panel keeps it zoomed
11552        workspace.update_in(cx, |workspace, window, cx| {
11553            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11554        });
11555
11556        workspace.update_in(cx, |workspace, window, cx| {
11557            assert!(workspace.right_dock().read(cx).is_open());
11558            assert!(panel.is_zoomed(window, cx));
11559            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11560        });
11561
11562        // Close the dock while it is zoomed
11563        workspace.update_in(cx, |workspace, window, cx| {
11564            workspace.toggle_dock(DockPosition::Right, window, cx)
11565        });
11566
11567        workspace.update_in(cx, |workspace, window, cx| {
11568            assert!(!workspace.right_dock().read(cx).is_open());
11569            assert!(panel.is_zoomed(window, cx));
11570            assert!(workspace.zoomed.is_none());
11571            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11572        });
11573
11574        // Opening the dock, when it's zoomed, retains focus
11575        workspace.update_in(cx, |workspace, window, cx| {
11576            workspace.toggle_dock(DockPosition::Right, window, cx)
11577        });
11578
11579        workspace.update_in(cx, |workspace, window, cx| {
11580            assert!(workspace.right_dock().read(cx).is_open());
11581            assert!(panel.is_zoomed(window, cx));
11582            assert!(workspace.zoomed.is_some());
11583            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11584        });
11585
11586        // Unzoom and close the panel, zoom the active pane.
11587        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11588        workspace.update_in(cx, |workspace, window, cx| {
11589            workspace.toggle_dock(DockPosition::Right, window, cx)
11590        });
11591        pane.update_in(cx, |pane, window, cx| {
11592            pane.toggle_zoom(&Default::default(), window, cx)
11593        });
11594
11595        // Opening a dock unzooms the pane.
11596        workspace.update_in(cx, |workspace, window, cx| {
11597            workspace.toggle_dock(DockPosition::Right, window, cx)
11598        });
11599        workspace.update_in(cx, |workspace, window, cx| {
11600            let pane = pane.read(cx);
11601            assert!(!pane.is_zoomed());
11602            assert!(!pane.focus_handle(cx).is_focused(window));
11603            assert!(workspace.right_dock().read(cx).is_open());
11604            assert!(workspace.zoomed.is_none());
11605        });
11606    }
11607
11608    #[gpui::test]
11609    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11610        init_test(cx);
11611        let fs = FakeFs::new(cx.executor());
11612
11613        let project = Project::test(fs, [], cx).await;
11614        let (workspace, cx) =
11615            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11616
11617        let panel = workspace.update_in(cx, |workspace, window, cx| {
11618            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11619            workspace.add_panel(panel.clone(), window, cx);
11620            panel
11621        });
11622
11623        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11624        pane.update_in(cx, |pane, window, cx| {
11625            let item = cx.new(TestItem::new);
11626            pane.add_item(Box::new(item), true, true, None, window, cx);
11627        });
11628
11629        // Enable close_panel_on_toggle
11630        cx.update_global(|store: &mut SettingsStore, cx| {
11631            store.update_user_settings(cx, |settings| {
11632                settings.workspace.close_panel_on_toggle = Some(true);
11633            });
11634        });
11635
11636        // Panel starts closed. Toggling should open and focus it.
11637        workspace.update_in(cx, |workspace, window, cx| {
11638            assert!(!workspace.right_dock().read(cx).is_open());
11639            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11640        });
11641
11642        workspace.update_in(cx, |workspace, window, cx| {
11643            assert!(
11644                workspace.right_dock().read(cx).is_open(),
11645                "Dock should be open after toggling from center"
11646            );
11647            assert!(
11648                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11649                "Panel should be focused after toggling from center"
11650            );
11651        });
11652
11653        // Panel is open and focused. Toggling should close the panel and
11654        // return focus to the center.
11655        workspace.update_in(cx, |workspace, window, cx| {
11656            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11657        });
11658
11659        workspace.update_in(cx, |workspace, window, cx| {
11660            assert!(
11661                !workspace.right_dock().read(cx).is_open(),
11662                "Dock should be closed after toggling from focused panel"
11663            );
11664            assert!(
11665                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11666                "Panel should not be focused after toggling from focused panel"
11667            );
11668        });
11669
11670        // Open the dock and focus something else so the panel is open but not
11671        // focused. Toggling should focus the panel (not close it).
11672        workspace.update_in(cx, |workspace, window, cx| {
11673            workspace
11674                .right_dock()
11675                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11676            window.focus(&pane.read(cx).focus_handle(cx), cx);
11677        });
11678
11679        workspace.update_in(cx, |workspace, window, cx| {
11680            assert!(workspace.right_dock().read(cx).is_open());
11681            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11682            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11683        });
11684
11685        workspace.update_in(cx, |workspace, window, cx| {
11686            assert!(
11687                workspace.right_dock().read(cx).is_open(),
11688                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11689            );
11690            assert!(
11691                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11692                "Panel should be focused after toggling an open-but-unfocused panel"
11693            );
11694        });
11695
11696        // Now disable the setting and verify the original behavior: toggling
11697        // from a focused panel moves focus to center but leaves the dock open.
11698        cx.update_global(|store: &mut SettingsStore, cx| {
11699            store.update_user_settings(cx, |settings| {
11700                settings.workspace.close_panel_on_toggle = Some(false);
11701            });
11702        });
11703
11704        workspace.update_in(cx, |workspace, window, cx| {
11705            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11706        });
11707
11708        workspace.update_in(cx, |workspace, window, cx| {
11709            assert!(
11710                workspace.right_dock().read(cx).is_open(),
11711                "Dock should remain open when setting is disabled"
11712            );
11713            assert!(
11714                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11715                "Panel should not be focused after toggling with setting disabled"
11716            );
11717        });
11718    }
11719
11720    #[gpui::test]
11721    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11722        init_test(cx);
11723        let fs = FakeFs::new(cx.executor());
11724
11725        let project = Project::test(fs, [], cx).await;
11726        let (workspace, cx) =
11727            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11728
11729        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11730            workspace.active_pane().clone()
11731        });
11732
11733        // Add an item to the pane so it can be zoomed
11734        workspace.update_in(cx, |workspace, window, cx| {
11735            let item = cx.new(TestItem::new);
11736            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11737        });
11738
11739        // Initially not zoomed
11740        workspace.update_in(cx, |workspace, _window, cx| {
11741            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11742            assert!(
11743                workspace.zoomed.is_none(),
11744                "Workspace should track no zoomed pane"
11745            );
11746            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11747        });
11748
11749        // Zoom In
11750        pane.update_in(cx, |pane, window, cx| {
11751            pane.zoom_in(&crate::ZoomIn, window, cx);
11752        });
11753
11754        workspace.update_in(cx, |workspace, window, cx| {
11755            assert!(
11756                pane.read(cx).is_zoomed(),
11757                "Pane should be zoomed after ZoomIn"
11758            );
11759            assert!(
11760                workspace.zoomed.is_some(),
11761                "Workspace should track the zoomed pane"
11762            );
11763            assert!(
11764                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11765                "ZoomIn should focus the pane"
11766            );
11767        });
11768
11769        // Zoom In again is a no-op
11770        pane.update_in(cx, |pane, window, cx| {
11771            pane.zoom_in(&crate::ZoomIn, window, cx);
11772        });
11773
11774        workspace.update_in(cx, |workspace, window, cx| {
11775            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11776            assert!(
11777                workspace.zoomed.is_some(),
11778                "Workspace still tracks zoomed pane"
11779            );
11780            assert!(
11781                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11782                "Pane remains focused after repeated ZoomIn"
11783            );
11784        });
11785
11786        // Zoom Out
11787        pane.update_in(cx, |pane, window, cx| {
11788            pane.zoom_out(&crate::ZoomOut, window, cx);
11789        });
11790
11791        workspace.update_in(cx, |workspace, _window, cx| {
11792            assert!(
11793                !pane.read(cx).is_zoomed(),
11794                "Pane should unzoom after ZoomOut"
11795            );
11796            assert!(
11797                workspace.zoomed.is_none(),
11798                "Workspace clears zoom tracking after ZoomOut"
11799            );
11800        });
11801
11802        // Zoom Out again is a no-op
11803        pane.update_in(cx, |pane, window, cx| {
11804            pane.zoom_out(&crate::ZoomOut, window, cx);
11805        });
11806
11807        workspace.update_in(cx, |workspace, _window, cx| {
11808            assert!(
11809                !pane.read(cx).is_zoomed(),
11810                "Second ZoomOut keeps pane unzoomed"
11811            );
11812            assert!(
11813                workspace.zoomed.is_none(),
11814                "Workspace remains without zoomed pane"
11815            );
11816        });
11817    }
11818
11819    #[gpui::test]
11820    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11821        init_test(cx);
11822        let fs = FakeFs::new(cx.executor());
11823
11824        let project = Project::test(fs, [], cx).await;
11825        let (workspace, cx) =
11826            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11827        workspace.update_in(cx, |workspace, window, cx| {
11828            // Open two docks
11829            let left_dock = workspace.dock_at_position(DockPosition::Left);
11830            let right_dock = workspace.dock_at_position(DockPosition::Right);
11831
11832            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11833            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11834
11835            assert!(left_dock.read(cx).is_open());
11836            assert!(right_dock.read(cx).is_open());
11837        });
11838
11839        workspace.update_in(cx, |workspace, window, cx| {
11840            // Toggle all docks - should close both
11841            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11842
11843            let left_dock = workspace.dock_at_position(DockPosition::Left);
11844            let right_dock = workspace.dock_at_position(DockPosition::Right);
11845            assert!(!left_dock.read(cx).is_open());
11846            assert!(!right_dock.read(cx).is_open());
11847        });
11848
11849        workspace.update_in(cx, |workspace, window, cx| {
11850            // Toggle again - should reopen both
11851            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11852
11853            let left_dock = workspace.dock_at_position(DockPosition::Left);
11854            let right_dock = workspace.dock_at_position(DockPosition::Right);
11855            assert!(left_dock.read(cx).is_open());
11856            assert!(right_dock.read(cx).is_open());
11857        });
11858    }
11859
11860    #[gpui::test]
11861    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11862        init_test(cx);
11863        let fs = FakeFs::new(cx.executor());
11864
11865        let project = Project::test(fs, [], cx).await;
11866        let (workspace, cx) =
11867            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11868        workspace.update_in(cx, |workspace, window, cx| {
11869            // Open two docks
11870            let left_dock = workspace.dock_at_position(DockPosition::Left);
11871            let right_dock = workspace.dock_at_position(DockPosition::Right);
11872
11873            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11874            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11875
11876            assert!(left_dock.read(cx).is_open());
11877            assert!(right_dock.read(cx).is_open());
11878        });
11879
11880        workspace.update_in(cx, |workspace, window, cx| {
11881            // Close them manually
11882            workspace.toggle_dock(DockPosition::Left, window, cx);
11883            workspace.toggle_dock(DockPosition::Right, window, cx);
11884
11885            let left_dock = workspace.dock_at_position(DockPosition::Left);
11886            let right_dock = workspace.dock_at_position(DockPosition::Right);
11887            assert!(!left_dock.read(cx).is_open());
11888            assert!(!right_dock.read(cx).is_open());
11889        });
11890
11891        workspace.update_in(cx, |workspace, window, cx| {
11892            // Toggle all docks - only last closed (right dock) should reopen
11893            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11894
11895            let left_dock = workspace.dock_at_position(DockPosition::Left);
11896            let right_dock = workspace.dock_at_position(DockPosition::Right);
11897            assert!(!left_dock.read(cx).is_open());
11898            assert!(right_dock.read(cx).is_open());
11899        });
11900    }
11901
11902    #[gpui::test]
11903    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
11904        init_test(cx);
11905        let fs = FakeFs::new(cx.executor());
11906        let project = Project::test(fs, [], cx).await;
11907        let (multi_workspace, cx) =
11908            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11909        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11910
11911        // Open two docks (left and right) with one panel each
11912        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
11913            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11914            workspace.add_panel(left_panel.clone(), window, cx);
11915
11916            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11917            workspace.add_panel(right_panel.clone(), window, cx);
11918
11919            workspace.toggle_dock(DockPosition::Left, window, cx);
11920            workspace.toggle_dock(DockPosition::Right, window, cx);
11921
11922            // Verify initial state
11923            assert!(
11924                workspace.left_dock().read(cx).is_open(),
11925                "Left dock should be open"
11926            );
11927            assert_eq!(
11928                workspace
11929                    .left_dock()
11930                    .read(cx)
11931                    .visible_panel()
11932                    .unwrap()
11933                    .panel_id(),
11934                left_panel.panel_id(),
11935                "Left panel should be visible in left dock"
11936            );
11937            assert!(
11938                workspace.right_dock().read(cx).is_open(),
11939                "Right dock should be open"
11940            );
11941            assert_eq!(
11942                workspace
11943                    .right_dock()
11944                    .read(cx)
11945                    .visible_panel()
11946                    .unwrap()
11947                    .panel_id(),
11948                right_panel.panel_id(),
11949                "Right panel should be visible in right dock"
11950            );
11951            assert!(
11952                !workspace.bottom_dock().read(cx).is_open(),
11953                "Bottom dock should be closed"
11954            );
11955
11956            (left_panel, right_panel)
11957        });
11958
11959        // Focus the left panel and move it to the next position (bottom dock)
11960        workspace.update_in(cx, |workspace, window, cx| {
11961            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
11962            assert!(
11963                left_panel.read(cx).focus_handle(cx).is_focused(window),
11964                "Left panel should be focused"
11965            );
11966        });
11967
11968        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11969
11970        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
11971        workspace.update(cx, |workspace, cx| {
11972            assert!(
11973                !workspace.left_dock().read(cx).is_open(),
11974                "Left dock should be closed"
11975            );
11976            assert!(
11977                workspace.bottom_dock().read(cx).is_open(),
11978                "Bottom dock should now be open"
11979            );
11980            assert_eq!(
11981                left_panel.read(cx).position,
11982                DockPosition::Bottom,
11983                "Left panel should now be in the bottom dock"
11984            );
11985            assert_eq!(
11986                workspace
11987                    .bottom_dock()
11988                    .read(cx)
11989                    .visible_panel()
11990                    .unwrap()
11991                    .panel_id(),
11992                left_panel.panel_id(),
11993                "Left panel should be the visible panel in the bottom dock"
11994            );
11995        });
11996
11997        // Toggle all docks off
11998        workspace.update_in(cx, |workspace, window, cx| {
11999            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12000            assert!(
12001                !workspace.left_dock().read(cx).is_open(),
12002                "Left dock should be closed"
12003            );
12004            assert!(
12005                !workspace.right_dock().read(cx).is_open(),
12006                "Right dock should be closed"
12007            );
12008            assert!(
12009                !workspace.bottom_dock().read(cx).is_open(),
12010                "Bottom dock should be closed"
12011            );
12012        });
12013
12014        // Toggle all docks back on and verify positions are restored
12015        workspace.update_in(cx, |workspace, window, cx| {
12016            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12017            assert!(
12018                !workspace.left_dock().read(cx).is_open(),
12019                "Left dock should remain closed"
12020            );
12021            assert!(
12022                workspace.right_dock().read(cx).is_open(),
12023                "Right dock should remain open"
12024            );
12025            assert!(
12026                workspace.bottom_dock().read(cx).is_open(),
12027                "Bottom dock should remain open"
12028            );
12029            assert_eq!(
12030                left_panel.read(cx).position,
12031                DockPosition::Bottom,
12032                "Left panel should remain in the bottom dock"
12033            );
12034            assert_eq!(
12035                right_panel.read(cx).position,
12036                DockPosition::Right,
12037                "Right panel should remain in the right dock"
12038            );
12039            assert_eq!(
12040                workspace
12041                    .bottom_dock()
12042                    .read(cx)
12043                    .visible_panel()
12044                    .unwrap()
12045                    .panel_id(),
12046                left_panel.panel_id(),
12047                "Left panel should be the visible panel in the right dock"
12048            );
12049        });
12050    }
12051
12052    #[gpui::test]
12053    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12054        init_test(cx);
12055
12056        let fs = FakeFs::new(cx.executor());
12057
12058        let project = Project::test(fs, None, cx).await;
12059        let (workspace, cx) =
12060            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12061
12062        // Let's arrange the panes like this:
12063        //
12064        // +-----------------------+
12065        // |         top           |
12066        // +------+--------+-------+
12067        // | left | center | right |
12068        // +------+--------+-------+
12069        // |        bottom         |
12070        // +-----------------------+
12071
12072        let top_item = cx.new(|cx| {
12073            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12074        });
12075        let bottom_item = cx.new(|cx| {
12076            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12077        });
12078        let left_item = cx.new(|cx| {
12079            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12080        });
12081        let right_item = cx.new(|cx| {
12082            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12083        });
12084        let center_item = cx.new(|cx| {
12085            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12086        });
12087
12088        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12089            let top_pane_id = workspace.active_pane().entity_id();
12090            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12091            workspace.split_pane(
12092                workspace.active_pane().clone(),
12093                SplitDirection::Down,
12094                window,
12095                cx,
12096            );
12097            top_pane_id
12098        });
12099        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12100            let bottom_pane_id = workspace.active_pane().entity_id();
12101            workspace.add_item_to_active_pane(
12102                Box::new(bottom_item.clone()),
12103                None,
12104                false,
12105                window,
12106                cx,
12107            );
12108            workspace.split_pane(
12109                workspace.active_pane().clone(),
12110                SplitDirection::Up,
12111                window,
12112                cx,
12113            );
12114            bottom_pane_id
12115        });
12116        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12117            let left_pane_id = workspace.active_pane().entity_id();
12118            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12119            workspace.split_pane(
12120                workspace.active_pane().clone(),
12121                SplitDirection::Right,
12122                window,
12123                cx,
12124            );
12125            left_pane_id
12126        });
12127        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12128            let right_pane_id = workspace.active_pane().entity_id();
12129            workspace.add_item_to_active_pane(
12130                Box::new(right_item.clone()),
12131                None,
12132                false,
12133                window,
12134                cx,
12135            );
12136            workspace.split_pane(
12137                workspace.active_pane().clone(),
12138                SplitDirection::Left,
12139                window,
12140                cx,
12141            );
12142            right_pane_id
12143        });
12144        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12145            let center_pane_id = workspace.active_pane().entity_id();
12146            workspace.add_item_to_active_pane(
12147                Box::new(center_item.clone()),
12148                None,
12149                false,
12150                window,
12151                cx,
12152            );
12153            center_pane_id
12154        });
12155        cx.executor().run_until_parked();
12156
12157        workspace.update_in(cx, |workspace, window, cx| {
12158            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12159
12160            // Join into next from center pane into right
12161            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12162        });
12163
12164        workspace.update_in(cx, |workspace, window, cx| {
12165            let active_pane = workspace.active_pane();
12166            assert_eq!(right_pane_id, active_pane.entity_id());
12167            assert_eq!(2, active_pane.read(cx).items_len());
12168            let item_ids_in_pane =
12169                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12170            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12171            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12172
12173            // Join into next from right pane into bottom
12174            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12175        });
12176
12177        workspace.update_in(cx, |workspace, window, cx| {
12178            let active_pane = workspace.active_pane();
12179            assert_eq!(bottom_pane_id, active_pane.entity_id());
12180            assert_eq!(3, active_pane.read(cx).items_len());
12181            let item_ids_in_pane =
12182                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12183            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12184            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12185            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12186
12187            // Join into next from bottom pane into left
12188            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12189        });
12190
12191        workspace.update_in(cx, |workspace, window, cx| {
12192            let active_pane = workspace.active_pane();
12193            assert_eq!(left_pane_id, active_pane.entity_id());
12194            assert_eq!(4, active_pane.read(cx).items_len());
12195            let item_ids_in_pane =
12196                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12197            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12198            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12199            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12200            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12201
12202            // Join into next from left pane into top
12203            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12204        });
12205
12206        workspace.update_in(cx, |workspace, window, cx| {
12207            let active_pane = workspace.active_pane();
12208            assert_eq!(top_pane_id, active_pane.entity_id());
12209            assert_eq!(5, active_pane.read(cx).items_len());
12210            let item_ids_in_pane =
12211                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12212            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12213            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12214            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12215            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12216            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12217
12218            // Single pane left: no-op
12219            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12220        });
12221
12222        workspace.update(cx, |workspace, _cx| {
12223            let active_pane = workspace.active_pane();
12224            assert_eq!(top_pane_id, active_pane.entity_id());
12225        });
12226    }
12227
12228    fn add_an_item_to_active_pane(
12229        cx: &mut VisualTestContext,
12230        workspace: &Entity<Workspace>,
12231        item_id: u64,
12232    ) -> Entity<TestItem> {
12233        let item = cx.new(|cx| {
12234            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12235                item_id,
12236                "item{item_id}.txt",
12237                cx,
12238            )])
12239        });
12240        workspace.update_in(cx, |workspace, window, cx| {
12241            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12242        });
12243        item
12244    }
12245
12246    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12247        workspace.update_in(cx, |workspace, window, cx| {
12248            workspace.split_pane(
12249                workspace.active_pane().clone(),
12250                SplitDirection::Right,
12251                window,
12252                cx,
12253            )
12254        })
12255    }
12256
12257    #[gpui::test]
12258    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12259        init_test(cx);
12260        let fs = FakeFs::new(cx.executor());
12261        let project = Project::test(fs, None, cx).await;
12262        let (workspace, cx) =
12263            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12264
12265        add_an_item_to_active_pane(cx, &workspace, 1);
12266        split_pane(cx, &workspace);
12267        add_an_item_to_active_pane(cx, &workspace, 2);
12268        split_pane(cx, &workspace); // empty pane
12269        split_pane(cx, &workspace);
12270        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12271
12272        cx.executor().run_until_parked();
12273
12274        workspace.update(cx, |workspace, cx| {
12275            let num_panes = workspace.panes().len();
12276            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12277            let active_item = workspace
12278                .active_pane()
12279                .read(cx)
12280                .active_item()
12281                .expect("item is in focus");
12282
12283            assert_eq!(num_panes, 4);
12284            assert_eq!(num_items_in_current_pane, 1);
12285            assert_eq!(active_item.item_id(), last_item.item_id());
12286        });
12287
12288        workspace.update_in(cx, |workspace, window, cx| {
12289            workspace.join_all_panes(window, cx);
12290        });
12291
12292        workspace.update(cx, |workspace, cx| {
12293            let num_panes = workspace.panes().len();
12294            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12295            let active_item = workspace
12296                .active_pane()
12297                .read(cx)
12298                .active_item()
12299                .expect("item is in focus");
12300
12301            assert_eq!(num_panes, 1);
12302            assert_eq!(num_items_in_current_pane, 3);
12303            assert_eq!(active_item.item_id(), last_item.item_id());
12304        });
12305    }
12306
12307    #[gpui::test]
12308    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12309        init_test(cx);
12310        let fs = FakeFs::new(cx.executor());
12311
12312        let project = Project::test(fs, [], cx).await;
12313        let (multi_workspace, cx) =
12314            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12315        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12316
12317        workspace.update(cx, |workspace, _cx| {
12318            workspace.bounds.size.width = px(800.);
12319        });
12320
12321        workspace.update_in(cx, |workspace, window, cx| {
12322            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12323            workspace.add_panel(panel, window, cx);
12324            workspace.toggle_dock(DockPosition::Right, window, cx);
12325        });
12326
12327        let (panel, resized_width, ratio_basis_width) =
12328            workspace.update_in(cx, |workspace, window, cx| {
12329                let item = cx.new(|cx| {
12330                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12331                });
12332                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12333
12334                let dock = workspace.right_dock().read(cx);
12335                let workspace_width = workspace.bounds.size.width;
12336                let initial_width = workspace
12337                    .dock_size(&dock, window, cx)
12338                    .expect("flexible dock should have an initial width");
12339
12340                assert_eq!(initial_width, workspace_width / 2.);
12341
12342                workspace.resize_right_dock(px(300.), window, cx);
12343
12344                let dock = workspace.right_dock().read(cx);
12345                let resized_width = workspace
12346                    .dock_size(&dock, window, cx)
12347                    .expect("flexible dock should keep its resized width");
12348
12349                assert_eq!(resized_width, px(300.));
12350
12351                let panel = workspace
12352                    .right_dock()
12353                    .read(cx)
12354                    .visible_panel()
12355                    .expect("flexible dock should have a visible panel")
12356                    .panel_id();
12357
12358                (panel, resized_width, workspace_width)
12359            });
12360
12361        workspace.update_in(cx, |workspace, window, cx| {
12362            workspace.toggle_dock(DockPosition::Right, window, cx);
12363            workspace.toggle_dock(DockPosition::Right, window, cx);
12364
12365            let dock = workspace.right_dock().read(cx);
12366            let reopened_width = workspace
12367                .dock_size(&dock, window, cx)
12368                .expect("flexible dock should restore when reopened");
12369
12370            assert_eq!(reopened_width, resized_width);
12371
12372            let right_dock = workspace.right_dock().read(cx);
12373            let flexible_panel = right_dock
12374                .visible_panel()
12375                .expect("flexible dock should still have a visible panel");
12376            assert_eq!(flexible_panel.panel_id(), panel);
12377            assert_eq!(
12378                right_dock
12379                    .stored_panel_size_state(flexible_panel.as_ref())
12380                    .and_then(|size_state| size_state.flex),
12381                Some(
12382                    resized_width.to_f64() as f32
12383                        / (workspace.bounds.size.width - resized_width).to_f64() as f32
12384                )
12385            );
12386        });
12387
12388        workspace.update_in(cx, |workspace, window, cx| {
12389            workspace.split_pane(
12390                workspace.active_pane().clone(),
12391                SplitDirection::Right,
12392                window,
12393                cx,
12394            );
12395
12396            let dock = workspace.right_dock().read(cx);
12397            let split_width = workspace
12398                .dock_size(&dock, window, cx)
12399                .expect("flexible dock should keep its user-resized proportion");
12400
12401            assert_eq!(split_width, px(300.));
12402
12403            workspace.bounds.size.width = px(1600.);
12404
12405            let dock = workspace.right_dock().read(cx);
12406            let resized_window_width = workspace
12407                .dock_size(&dock, window, cx)
12408                .expect("flexible dock should preserve proportional size on window resize");
12409
12410            assert_eq!(
12411                resized_window_width,
12412                workspace.bounds.size.width
12413                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12414            );
12415        });
12416    }
12417
12418    #[gpui::test]
12419    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12420        init_test(cx);
12421        let fs = FakeFs::new(cx.executor());
12422
12423        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12424        {
12425            let project = Project::test(fs.clone(), [], cx).await;
12426            let (multi_workspace, cx) =
12427                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12428            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12429
12430            workspace.update(cx, |workspace, _cx| {
12431                workspace.set_random_database_id();
12432                workspace.bounds.size.width = px(800.);
12433            });
12434
12435            let panel = workspace.update_in(cx, |workspace, window, cx| {
12436                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12437                workspace.add_panel(panel.clone(), window, cx);
12438                workspace.toggle_dock(DockPosition::Left, window, cx);
12439                panel
12440            });
12441
12442            workspace.update_in(cx, |workspace, window, cx| {
12443                workspace.resize_left_dock(px(350.), window, cx);
12444            });
12445
12446            cx.run_until_parked();
12447
12448            let persisted = workspace.read_with(cx, |workspace, cx| {
12449                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12450            });
12451            assert_eq!(
12452                persisted.and_then(|s| s.size),
12453                Some(px(350.)),
12454                "fixed-width panel size should be persisted to KVP"
12455            );
12456
12457            // Remove the panel and re-add a fresh instance with the same key.
12458            // The new instance should have its size state restored from KVP.
12459            workspace.update_in(cx, |workspace, window, cx| {
12460                workspace.remove_panel(&panel, window, cx);
12461            });
12462
12463            workspace.update_in(cx, |workspace, window, cx| {
12464                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12465                workspace.add_panel(new_panel, window, cx);
12466
12467                let left_dock = workspace.left_dock().read(cx);
12468                let size_state = left_dock
12469                    .panel::<TestPanel>()
12470                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12471                assert_eq!(
12472                    size_state.and_then(|s| s.size),
12473                    Some(px(350.)),
12474                    "re-added fixed-width panel should restore persisted size from KVP"
12475                );
12476            });
12477        }
12478
12479        // Flexible panel: both pixel size and ratio are persisted and restored.
12480        {
12481            let project = Project::test(fs.clone(), [], cx).await;
12482            let (multi_workspace, cx) =
12483                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12484            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12485
12486            workspace.update(cx, |workspace, _cx| {
12487                workspace.set_random_database_id();
12488                workspace.bounds.size.width = px(800.);
12489            });
12490
12491            let panel = workspace.update_in(cx, |workspace, window, cx| {
12492                let item = cx.new(|cx| {
12493                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12494                });
12495                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12496
12497                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12498                workspace.add_panel(panel.clone(), window, cx);
12499                workspace.toggle_dock(DockPosition::Right, window, cx);
12500                panel
12501            });
12502
12503            workspace.update_in(cx, |workspace, window, cx| {
12504                workspace.resize_right_dock(px(300.), window, cx);
12505            });
12506
12507            cx.run_until_parked();
12508
12509            let persisted = workspace
12510                .read_with(cx, |workspace, cx| {
12511                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12512                })
12513                .expect("flexible panel state should be persisted to KVP");
12514            assert_eq!(
12515                persisted.size, None,
12516                "flexible panel should not persist a redundant pixel size"
12517            );
12518            let original_ratio = persisted.flex.expect("panel's flex should be persisted");
12519
12520            // Remove the panel and re-add: both size and ratio should be restored.
12521            workspace.update_in(cx, |workspace, window, cx| {
12522                workspace.remove_panel(&panel, window, cx);
12523            });
12524
12525            workspace.update_in(cx, |workspace, window, cx| {
12526                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12527                workspace.add_panel(new_panel, window, cx);
12528
12529                let right_dock = workspace.right_dock().read(cx);
12530                let size_state = right_dock
12531                    .panel::<TestPanel>()
12532                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12533                    .expect("re-added flexible panel should have restored size state from KVP");
12534                assert_eq!(
12535                    size_state.size, None,
12536                    "re-added flexible panel should not have a persisted pixel size"
12537                );
12538                assert_eq!(
12539                    size_state.flex,
12540                    Some(original_ratio),
12541                    "re-added flexible panel should restore persisted flex"
12542                );
12543            });
12544        }
12545    }
12546
12547    #[gpui::test]
12548    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12549        init_test(cx);
12550        let fs = FakeFs::new(cx.executor());
12551
12552        let project = Project::test(fs, [], cx).await;
12553        let (multi_workspace, cx) =
12554            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12555        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12556
12557        workspace.update(cx, |workspace, _cx| {
12558            workspace.bounds.size.width = px(900.);
12559        });
12560
12561        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12562        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12563        // and the center pane each take half the workspace width.
12564        workspace.update_in(cx, |workspace, window, cx| {
12565            let item = cx.new(|cx| {
12566                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12567            });
12568            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12569
12570            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12571            workspace.add_panel(panel, window, cx);
12572            workspace.toggle_dock(DockPosition::Left, window, cx);
12573
12574            let left_dock = workspace.left_dock().read(cx);
12575            let left_width = workspace
12576                .dock_size(&left_dock, window, cx)
12577                .expect("left dock should have an active panel");
12578
12579            assert_eq!(
12580                left_width,
12581                workspace.bounds.size.width / 2.,
12582                "flexible left panel should split evenly with the center pane"
12583            );
12584        });
12585
12586        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12587        // change horizontal width fractions, so the flexible panel stays at the same
12588        // width as each half of the split.
12589        workspace.update_in(cx, |workspace, window, cx| {
12590            workspace.split_pane(
12591                workspace.active_pane().clone(),
12592                SplitDirection::Down,
12593                window,
12594                cx,
12595            );
12596
12597            let left_dock = workspace.left_dock().read(cx);
12598            let left_width = workspace
12599                .dock_size(&left_dock, window, cx)
12600                .expect("left dock should still have an active panel after vertical split");
12601
12602            assert_eq!(
12603                left_width,
12604                workspace.bounds.size.width / 2.,
12605                "flexible left panel width should match each vertically-split pane"
12606            );
12607        });
12608
12609        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
12610        // size reduces the available width, so the flexible left panel and the center
12611        // panes all shrink proportionally to accommodate it.
12612        workspace.update_in(cx, |workspace, window, cx| {
12613            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
12614            workspace.add_panel(panel, window, cx);
12615            workspace.toggle_dock(DockPosition::Right, window, cx);
12616
12617            let right_dock = workspace.right_dock().read(cx);
12618            let right_width = workspace
12619                .dock_size(&right_dock, window, cx)
12620                .expect("right dock should have an active panel");
12621
12622            let left_dock = workspace.left_dock().read(cx);
12623            let left_width = workspace
12624                .dock_size(&left_dock, window, cx)
12625                .expect("left dock should still have an active panel");
12626
12627            let available_width = workspace.bounds.size.width - right_width;
12628            assert_eq!(
12629                left_width,
12630                available_width / 2.,
12631                "flexible left panel should shrink proportionally as the right dock takes space"
12632            );
12633        });
12634
12635        // Step 4: Toggle the right dock's panel to flexible. Now both docks use
12636        // flex sizing and the workspace width is divided among left-flex, center
12637        // (implicit flex 1.0), and right-flex.
12638        workspace.update_in(cx, |workspace, window, cx| {
12639            let right_dock = workspace.right_dock().clone();
12640            let right_panel = right_dock
12641                .read(cx)
12642                .visible_panel()
12643                .expect("right dock should have a visible panel")
12644                .clone();
12645            workspace.toggle_dock_panel_flexible_size(
12646                &right_dock,
12647                right_panel.as_ref(),
12648                window,
12649                cx,
12650            );
12651
12652            let right_dock = right_dock.read(cx);
12653            let right_panel = right_dock
12654                .visible_panel()
12655                .expect("right dock should still have a visible panel");
12656            assert!(
12657                right_panel.has_flexible_size(window, cx),
12658                "right panel should now be flexible"
12659            );
12660
12661            let right_size_state = right_dock
12662                .stored_panel_size_state(right_panel.as_ref())
12663                .expect("right panel should have a stored size state after toggling");
12664            let right_flex = right_size_state
12665                .flex
12666                .expect("right panel should have a flex value after toggling");
12667
12668            let left_dock = workspace.left_dock().read(cx);
12669            let left_width = workspace
12670                .dock_size(&left_dock, window, cx)
12671                .expect("left dock should still have an active panel");
12672            let right_width = workspace
12673                .dock_size(&right_dock, window, cx)
12674                .expect("right dock should still have an active panel");
12675
12676            let left_flex = workspace
12677                .default_dock_flex(DockPosition::Left)
12678                .expect("left dock should have a default flex");
12679
12680            let total_flex = left_flex + 1.0 + right_flex;
12681            let expected_left = left_flex / total_flex * workspace.bounds.size.width;
12682            let expected_right = right_flex / total_flex * workspace.bounds.size.width;
12683            assert_eq!(
12684                left_width, expected_left,
12685                "flexible left panel should share workspace width via flex ratios"
12686            );
12687            assert_eq!(
12688                right_width, expected_right,
12689                "flexible right panel should share workspace width via flex ratios"
12690            );
12691        });
12692    }
12693
12694    struct TestModal(FocusHandle);
12695
12696    impl TestModal {
12697        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
12698            Self(cx.focus_handle())
12699        }
12700    }
12701
12702    impl EventEmitter<DismissEvent> for TestModal {}
12703
12704    impl Focusable for TestModal {
12705        fn focus_handle(&self, _cx: &App) -> FocusHandle {
12706            self.0.clone()
12707        }
12708    }
12709
12710    impl ModalView for TestModal {}
12711
12712    impl Render for TestModal {
12713        fn render(
12714            &mut self,
12715            _window: &mut Window,
12716            _cx: &mut Context<TestModal>,
12717        ) -> impl IntoElement {
12718            div().track_focus(&self.0)
12719        }
12720    }
12721
12722    #[gpui::test]
12723    async fn test_panels(cx: &mut gpui::TestAppContext) {
12724        init_test(cx);
12725        let fs = FakeFs::new(cx.executor());
12726
12727        let project = Project::test(fs, [], cx).await;
12728        let (multi_workspace, cx) =
12729            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12730        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12731
12732        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
12733            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12734            workspace.add_panel(panel_1.clone(), window, cx);
12735            workspace.toggle_dock(DockPosition::Left, window, cx);
12736            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12737            workspace.add_panel(panel_2.clone(), window, cx);
12738            workspace.toggle_dock(DockPosition::Right, window, cx);
12739
12740            let left_dock = workspace.left_dock();
12741            assert_eq!(
12742                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12743                panel_1.panel_id()
12744            );
12745            assert_eq!(
12746                workspace.dock_size(&left_dock.read(cx), window, cx),
12747                Some(px(300.))
12748            );
12749
12750            workspace.resize_left_dock(px(1337.), window, cx);
12751            assert_eq!(
12752                workspace
12753                    .right_dock()
12754                    .read(cx)
12755                    .visible_panel()
12756                    .unwrap()
12757                    .panel_id(),
12758                panel_2.panel_id(),
12759            );
12760
12761            (panel_1, panel_2)
12762        });
12763
12764        // Move panel_1 to the right
12765        panel_1.update_in(cx, |panel_1, window, cx| {
12766            panel_1.set_position(DockPosition::Right, window, cx)
12767        });
12768
12769        workspace.update_in(cx, |workspace, window, cx| {
12770            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
12771            // Since it was the only panel on the left, the left dock should now be closed.
12772            assert!(!workspace.left_dock().read(cx).is_open());
12773            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
12774            let right_dock = workspace.right_dock();
12775            assert_eq!(
12776                right_dock.read(cx).visible_panel().unwrap().panel_id(),
12777                panel_1.panel_id()
12778            );
12779            assert_eq!(
12780                right_dock
12781                    .read(cx)
12782                    .active_panel_size()
12783                    .unwrap()
12784                    .size
12785                    .unwrap(),
12786                px(1337.)
12787            );
12788
12789            // Now we move panel_2 to the left
12790            panel_2.set_position(DockPosition::Left, window, cx);
12791        });
12792
12793        workspace.update(cx, |workspace, cx| {
12794            // Since panel_2 was not visible on the right, we don't open the left dock.
12795            assert!(!workspace.left_dock().read(cx).is_open());
12796            // And the right dock is unaffected in its displaying of panel_1
12797            assert!(workspace.right_dock().read(cx).is_open());
12798            assert_eq!(
12799                workspace
12800                    .right_dock()
12801                    .read(cx)
12802                    .visible_panel()
12803                    .unwrap()
12804                    .panel_id(),
12805                panel_1.panel_id(),
12806            );
12807        });
12808
12809        // Move panel_1 back to the left
12810        panel_1.update_in(cx, |panel_1, window, cx| {
12811            panel_1.set_position(DockPosition::Left, window, cx)
12812        });
12813
12814        workspace.update_in(cx, |workspace, window, cx| {
12815            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
12816            let left_dock = workspace.left_dock();
12817            assert!(left_dock.read(cx).is_open());
12818            assert_eq!(
12819                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12820                panel_1.panel_id()
12821            );
12822            assert_eq!(
12823                workspace.dock_size(&left_dock.read(cx), window, cx),
12824                Some(px(1337.))
12825            );
12826            // And the right dock should be closed as it no longer has any panels.
12827            assert!(!workspace.right_dock().read(cx).is_open());
12828
12829            // Now we move panel_1 to the bottom
12830            panel_1.set_position(DockPosition::Bottom, window, cx);
12831        });
12832
12833        workspace.update_in(cx, |workspace, window, cx| {
12834            // Since panel_1 was visible on the left, we close the left dock.
12835            assert!(!workspace.left_dock().read(cx).is_open());
12836            // The bottom dock is sized based on the panel's default size,
12837            // since the panel orientation changed from vertical to horizontal.
12838            let bottom_dock = workspace.bottom_dock();
12839            assert_eq!(
12840                workspace.dock_size(&bottom_dock.read(cx), window, cx),
12841                Some(px(300.))
12842            );
12843            // Close bottom dock and move panel_1 back to the left.
12844            bottom_dock.update(cx, |bottom_dock, cx| {
12845                bottom_dock.set_open(false, window, cx)
12846            });
12847            panel_1.set_position(DockPosition::Left, window, cx);
12848        });
12849
12850        // Emit activated event on panel 1
12851        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
12852
12853        // Now the left dock is open and panel_1 is active and focused.
12854        workspace.update_in(cx, |workspace, window, cx| {
12855            let left_dock = workspace.left_dock();
12856            assert!(left_dock.read(cx).is_open());
12857            assert_eq!(
12858                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12859                panel_1.panel_id(),
12860            );
12861            assert!(panel_1.focus_handle(cx).is_focused(window));
12862        });
12863
12864        // Emit closed event on panel 2, which is not active
12865        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12866
12867        // Wo don't close the left dock, because panel_2 wasn't the active panel
12868        workspace.update(cx, |workspace, cx| {
12869            let left_dock = workspace.left_dock();
12870            assert!(left_dock.read(cx).is_open());
12871            assert_eq!(
12872                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12873                panel_1.panel_id(),
12874            );
12875        });
12876
12877        // Emitting a ZoomIn event shows the panel as zoomed.
12878        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
12879        workspace.read_with(cx, |workspace, _| {
12880            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12881            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
12882        });
12883
12884        // Move panel to another dock while it is zoomed
12885        panel_1.update_in(cx, |panel, window, cx| {
12886            panel.set_position(DockPosition::Right, window, cx)
12887        });
12888        workspace.read_with(cx, |workspace, _| {
12889            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12890
12891            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12892        });
12893
12894        // This is a helper for getting a:
12895        // - valid focus on an element,
12896        // - that isn't a part of the panes and panels system of the Workspace,
12897        // - and doesn't trigger the 'on_focus_lost' API.
12898        let focus_other_view = {
12899            let workspace = workspace.clone();
12900            move |cx: &mut VisualTestContext| {
12901                workspace.update_in(cx, |workspace, window, cx| {
12902                    if workspace.active_modal::<TestModal>(cx).is_some() {
12903                        workspace.toggle_modal(window, cx, TestModal::new);
12904                        workspace.toggle_modal(window, cx, TestModal::new);
12905                    } else {
12906                        workspace.toggle_modal(window, cx, TestModal::new);
12907                    }
12908                })
12909            }
12910        };
12911
12912        // If focus is transferred to another view that's not a panel or another pane, we still show
12913        // the panel as zoomed.
12914        focus_other_view(cx);
12915        workspace.read_with(cx, |workspace, _| {
12916            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12917            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12918        });
12919
12920        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
12921        workspace.update_in(cx, |_workspace, window, cx| {
12922            cx.focus_self(window);
12923        });
12924        workspace.read_with(cx, |workspace, _| {
12925            assert_eq!(workspace.zoomed, None);
12926            assert_eq!(workspace.zoomed_position, None);
12927        });
12928
12929        // If focus is transferred again to another view that's not a panel or a pane, we won't
12930        // show the panel as zoomed because it wasn't zoomed before.
12931        focus_other_view(cx);
12932        workspace.read_with(cx, |workspace, _| {
12933            assert_eq!(workspace.zoomed, None);
12934            assert_eq!(workspace.zoomed_position, None);
12935        });
12936
12937        // When the panel is activated, it is zoomed again.
12938        cx.dispatch_action(ToggleRightDock);
12939        workspace.read_with(cx, |workspace, _| {
12940            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12941            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12942        });
12943
12944        // Emitting a ZoomOut event unzooms the panel.
12945        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
12946        workspace.read_with(cx, |workspace, _| {
12947            assert_eq!(workspace.zoomed, None);
12948            assert_eq!(workspace.zoomed_position, None);
12949        });
12950
12951        // Emit closed event on panel 1, which is active
12952        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12953
12954        // Now the left dock is closed, because panel_1 was the active panel
12955        workspace.update(cx, |workspace, cx| {
12956            let right_dock = workspace.right_dock();
12957            assert!(!right_dock.read(cx).is_open());
12958        });
12959    }
12960
12961    #[gpui::test]
12962    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
12963        init_test(cx);
12964
12965        let fs = FakeFs::new(cx.background_executor.clone());
12966        let project = Project::test(fs, [], cx).await;
12967        let (workspace, cx) =
12968            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12969        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12970
12971        let dirty_regular_buffer = cx.new(|cx| {
12972            TestItem::new(cx)
12973                .with_dirty(true)
12974                .with_label("1.txt")
12975                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12976        });
12977        let dirty_regular_buffer_2 = cx.new(|cx| {
12978            TestItem::new(cx)
12979                .with_dirty(true)
12980                .with_label("2.txt")
12981                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12982        });
12983        let dirty_multi_buffer_with_both = cx.new(|cx| {
12984            TestItem::new(cx)
12985                .with_dirty(true)
12986                .with_buffer_kind(ItemBufferKind::Multibuffer)
12987                .with_label("Fake Project Search")
12988                .with_project_items(&[
12989                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12990                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12991                ])
12992        });
12993        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12994        workspace.update_in(cx, |workspace, window, cx| {
12995            workspace.add_item(
12996                pane.clone(),
12997                Box::new(dirty_regular_buffer.clone()),
12998                None,
12999                false,
13000                false,
13001                window,
13002                cx,
13003            );
13004            workspace.add_item(
13005                pane.clone(),
13006                Box::new(dirty_regular_buffer_2.clone()),
13007                None,
13008                false,
13009                false,
13010                window,
13011                cx,
13012            );
13013            workspace.add_item(
13014                pane.clone(),
13015                Box::new(dirty_multi_buffer_with_both.clone()),
13016                None,
13017                false,
13018                false,
13019                window,
13020                cx,
13021            );
13022        });
13023
13024        pane.update_in(cx, |pane, window, cx| {
13025            pane.activate_item(2, true, true, window, cx);
13026            assert_eq!(
13027                pane.active_item().unwrap().item_id(),
13028                multi_buffer_with_both_files_id,
13029                "Should select the multi buffer in the pane"
13030            );
13031        });
13032        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13033            pane.close_other_items(
13034                &CloseOtherItems {
13035                    save_intent: Some(SaveIntent::Save),
13036                    close_pinned: true,
13037                },
13038                None,
13039                window,
13040                cx,
13041            )
13042        });
13043        cx.background_executor.run_until_parked();
13044        assert!(!cx.has_pending_prompt());
13045        close_all_but_multi_buffer_task
13046            .await
13047            .expect("Closing all buffers but the multi buffer failed");
13048        pane.update(cx, |pane, cx| {
13049            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
13050            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
13051            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
13052            assert_eq!(pane.items_len(), 1);
13053            assert_eq!(
13054                pane.active_item().unwrap().item_id(),
13055                multi_buffer_with_both_files_id,
13056                "Should have only the multi buffer left in the pane"
13057            );
13058            assert!(
13059                dirty_multi_buffer_with_both.read(cx).is_dirty,
13060                "The multi buffer containing the unsaved buffer should still be dirty"
13061            );
13062        });
13063
13064        dirty_regular_buffer.update(cx, |buffer, cx| {
13065            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
13066        });
13067
13068        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13069            pane.close_active_item(
13070                &CloseActiveItem {
13071                    save_intent: Some(SaveIntent::Close),
13072                    close_pinned: false,
13073                },
13074                window,
13075                cx,
13076            )
13077        });
13078        cx.background_executor.run_until_parked();
13079        assert!(
13080            cx.has_pending_prompt(),
13081            "Dirty multi buffer should prompt a save dialog"
13082        );
13083        cx.simulate_prompt_answer("Save");
13084        cx.background_executor.run_until_parked();
13085        close_multi_buffer_task
13086            .await
13087            .expect("Closing the multi buffer failed");
13088        pane.update(cx, |pane, cx| {
13089            assert_eq!(
13090                dirty_multi_buffer_with_both.read(cx).save_count,
13091                1,
13092                "Multi buffer item should get be saved"
13093            );
13094            // Test impl does not save inner items, so we do not assert them
13095            assert_eq!(
13096                pane.items_len(),
13097                0,
13098                "No more items should be left in the pane"
13099            );
13100            assert!(pane.active_item().is_none());
13101        });
13102    }
13103
13104    #[gpui::test]
13105    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13106        cx: &mut TestAppContext,
13107    ) {
13108        init_test(cx);
13109
13110        let fs = FakeFs::new(cx.background_executor.clone());
13111        let project = Project::test(fs, [], cx).await;
13112        let (workspace, cx) =
13113            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13114        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13115
13116        let dirty_regular_buffer = cx.new(|cx| {
13117            TestItem::new(cx)
13118                .with_dirty(true)
13119                .with_label("1.txt")
13120                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13121        });
13122        let dirty_regular_buffer_2 = cx.new(|cx| {
13123            TestItem::new(cx)
13124                .with_dirty(true)
13125                .with_label("2.txt")
13126                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13127        });
13128        let clear_regular_buffer = cx.new(|cx| {
13129            TestItem::new(cx)
13130                .with_label("3.txt")
13131                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13132        });
13133
13134        let dirty_multi_buffer_with_both = cx.new(|cx| {
13135            TestItem::new(cx)
13136                .with_dirty(true)
13137                .with_buffer_kind(ItemBufferKind::Multibuffer)
13138                .with_label("Fake Project Search")
13139                .with_project_items(&[
13140                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13141                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13142                    clear_regular_buffer.read(cx).project_items[0].clone(),
13143                ])
13144        });
13145        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13146        workspace.update_in(cx, |workspace, window, cx| {
13147            workspace.add_item(
13148                pane.clone(),
13149                Box::new(dirty_regular_buffer.clone()),
13150                None,
13151                false,
13152                false,
13153                window,
13154                cx,
13155            );
13156            workspace.add_item(
13157                pane.clone(),
13158                Box::new(dirty_multi_buffer_with_both.clone()),
13159                None,
13160                false,
13161                false,
13162                window,
13163                cx,
13164            );
13165        });
13166
13167        pane.update_in(cx, |pane, window, cx| {
13168            pane.activate_item(1, true, true, window, cx);
13169            assert_eq!(
13170                pane.active_item().unwrap().item_id(),
13171                multi_buffer_with_both_files_id,
13172                "Should select the multi buffer in the pane"
13173            );
13174        });
13175        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13176            pane.close_active_item(
13177                &CloseActiveItem {
13178                    save_intent: None,
13179                    close_pinned: false,
13180                },
13181                window,
13182                cx,
13183            )
13184        });
13185        cx.background_executor.run_until_parked();
13186        assert!(
13187            cx.has_pending_prompt(),
13188            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13189        );
13190    }
13191
13192    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13193    /// closed when they are deleted from disk.
13194    #[gpui::test]
13195    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13196        init_test(cx);
13197
13198        // Enable the close_on_disk_deletion setting
13199        cx.update_global(|store: &mut SettingsStore, cx| {
13200            store.update_user_settings(cx, |settings| {
13201                settings.workspace.close_on_file_delete = Some(true);
13202            });
13203        });
13204
13205        let fs = FakeFs::new(cx.background_executor.clone());
13206        let project = Project::test(fs, [], cx).await;
13207        let (workspace, cx) =
13208            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13209        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13210
13211        // Create a test item that simulates a file
13212        let item = cx.new(|cx| {
13213            TestItem::new(cx)
13214                .with_label("test.txt")
13215                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13216        });
13217
13218        // Add item to workspace
13219        workspace.update_in(cx, |workspace, window, cx| {
13220            workspace.add_item(
13221                pane.clone(),
13222                Box::new(item.clone()),
13223                None,
13224                false,
13225                false,
13226                window,
13227                cx,
13228            );
13229        });
13230
13231        // Verify the item is in the pane
13232        pane.read_with(cx, |pane, _| {
13233            assert_eq!(pane.items().count(), 1);
13234        });
13235
13236        // Simulate file deletion by setting the item's deleted state
13237        item.update(cx, |item, _| {
13238            item.set_has_deleted_file(true);
13239        });
13240
13241        // Emit UpdateTab event to trigger the close behavior
13242        cx.run_until_parked();
13243        item.update(cx, |_, cx| {
13244            cx.emit(ItemEvent::UpdateTab);
13245        });
13246
13247        // Allow the close operation to complete
13248        cx.run_until_parked();
13249
13250        // Verify the item was automatically closed
13251        pane.read_with(cx, |pane, _| {
13252            assert_eq!(
13253                pane.items().count(),
13254                0,
13255                "Item should be automatically closed when file is deleted"
13256            );
13257        });
13258    }
13259
13260    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13261    /// open with a strikethrough when they are deleted from disk.
13262    #[gpui::test]
13263    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13264        init_test(cx);
13265
13266        // Ensure close_on_disk_deletion is disabled (default)
13267        cx.update_global(|store: &mut SettingsStore, cx| {
13268            store.update_user_settings(cx, |settings| {
13269                settings.workspace.close_on_file_delete = Some(false);
13270            });
13271        });
13272
13273        let fs = FakeFs::new(cx.background_executor.clone());
13274        let project = Project::test(fs, [], cx).await;
13275        let (workspace, cx) =
13276            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13277        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13278
13279        // Create a test item that simulates a file
13280        let item = cx.new(|cx| {
13281            TestItem::new(cx)
13282                .with_label("test.txt")
13283                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13284        });
13285
13286        // Add item to workspace
13287        workspace.update_in(cx, |workspace, window, cx| {
13288            workspace.add_item(
13289                pane.clone(),
13290                Box::new(item.clone()),
13291                None,
13292                false,
13293                false,
13294                window,
13295                cx,
13296            );
13297        });
13298
13299        // Verify the item is in the pane
13300        pane.read_with(cx, |pane, _| {
13301            assert_eq!(pane.items().count(), 1);
13302        });
13303
13304        // Simulate file deletion
13305        item.update(cx, |item, _| {
13306            item.set_has_deleted_file(true);
13307        });
13308
13309        // Emit UpdateTab event
13310        cx.run_until_parked();
13311        item.update(cx, |_, cx| {
13312            cx.emit(ItemEvent::UpdateTab);
13313        });
13314
13315        // Allow any potential close operation to complete
13316        cx.run_until_parked();
13317
13318        // Verify the item remains open (with strikethrough)
13319        pane.read_with(cx, |pane, _| {
13320            assert_eq!(
13321                pane.items().count(),
13322                1,
13323                "Item should remain open when close_on_disk_deletion is disabled"
13324            );
13325        });
13326
13327        // Verify the item shows as deleted
13328        item.read_with(cx, |item, _| {
13329            assert!(
13330                item.has_deleted_file,
13331                "Item should be marked as having deleted file"
13332            );
13333        });
13334    }
13335
13336    /// Tests that dirty files are not automatically closed when deleted from disk,
13337    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13338    /// unsaved changes without being prompted.
13339    #[gpui::test]
13340    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13341        init_test(cx);
13342
13343        // Enable the close_on_file_delete setting
13344        cx.update_global(|store: &mut SettingsStore, cx| {
13345            store.update_user_settings(cx, |settings| {
13346                settings.workspace.close_on_file_delete = Some(true);
13347            });
13348        });
13349
13350        let fs = FakeFs::new(cx.background_executor.clone());
13351        let project = Project::test(fs, [], cx).await;
13352        let (workspace, cx) =
13353            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13354        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13355
13356        // Create a dirty test item
13357        let item = cx.new(|cx| {
13358            TestItem::new(cx)
13359                .with_dirty(true)
13360                .with_label("test.txt")
13361                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13362        });
13363
13364        // Add item to workspace
13365        workspace.update_in(cx, |workspace, window, cx| {
13366            workspace.add_item(
13367                pane.clone(),
13368                Box::new(item.clone()),
13369                None,
13370                false,
13371                false,
13372                window,
13373                cx,
13374            );
13375        });
13376
13377        // Simulate file deletion
13378        item.update(cx, |item, _| {
13379            item.set_has_deleted_file(true);
13380        });
13381
13382        // Emit UpdateTab event to trigger the close behavior
13383        cx.run_until_parked();
13384        item.update(cx, |_, cx| {
13385            cx.emit(ItemEvent::UpdateTab);
13386        });
13387
13388        // Allow any potential close operation to complete
13389        cx.run_until_parked();
13390
13391        // Verify the item remains open (dirty files are not auto-closed)
13392        pane.read_with(cx, |pane, _| {
13393            assert_eq!(
13394                pane.items().count(),
13395                1,
13396                "Dirty items should not be automatically closed even when file is deleted"
13397            );
13398        });
13399
13400        // Verify the item is marked as deleted and still dirty
13401        item.read_with(cx, |item, _| {
13402            assert!(
13403                item.has_deleted_file,
13404                "Item should be marked as having deleted file"
13405            );
13406            assert!(item.is_dirty, "Item should still be dirty");
13407        });
13408    }
13409
13410    /// Tests that navigation history is cleaned up when files are auto-closed
13411    /// due to deletion from disk.
13412    #[gpui::test]
13413    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13414        init_test(cx);
13415
13416        // Enable the close_on_file_delete setting
13417        cx.update_global(|store: &mut SettingsStore, cx| {
13418            store.update_user_settings(cx, |settings| {
13419                settings.workspace.close_on_file_delete = Some(true);
13420            });
13421        });
13422
13423        let fs = FakeFs::new(cx.background_executor.clone());
13424        let project = Project::test(fs, [], cx).await;
13425        let (workspace, cx) =
13426            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13427        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13428
13429        // Create test items
13430        let item1 = cx.new(|cx| {
13431            TestItem::new(cx)
13432                .with_label("test1.txt")
13433                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13434        });
13435        let item1_id = item1.item_id();
13436
13437        let item2 = cx.new(|cx| {
13438            TestItem::new(cx)
13439                .with_label("test2.txt")
13440                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13441        });
13442
13443        // Add items to workspace
13444        workspace.update_in(cx, |workspace, window, cx| {
13445            workspace.add_item(
13446                pane.clone(),
13447                Box::new(item1.clone()),
13448                None,
13449                false,
13450                false,
13451                window,
13452                cx,
13453            );
13454            workspace.add_item(
13455                pane.clone(),
13456                Box::new(item2.clone()),
13457                None,
13458                false,
13459                false,
13460                window,
13461                cx,
13462            );
13463        });
13464
13465        // Activate item1 to ensure it gets navigation entries
13466        pane.update_in(cx, |pane, window, cx| {
13467            pane.activate_item(0, true, true, window, cx);
13468        });
13469
13470        // Switch to item2 and back to create navigation history
13471        pane.update_in(cx, |pane, window, cx| {
13472            pane.activate_item(1, true, true, window, cx);
13473        });
13474        cx.run_until_parked();
13475
13476        pane.update_in(cx, |pane, window, cx| {
13477            pane.activate_item(0, true, true, window, cx);
13478        });
13479        cx.run_until_parked();
13480
13481        // Simulate file deletion for item1
13482        item1.update(cx, |item, _| {
13483            item.set_has_deleted_file(true);
13484        });
13485
13486        // Emit UpdateTab event to trigger the close behavior
13487        item1.update(cx, |_, cx| {
13488            cx.emit(ItemEvent::UpdateTab);
13489        });
13490        cx.run_until_parked();
13491
13492        // Verify item1 was closed
13493        pane.read_with(cx, |pane, _| {
13494            assert_eq!(
13495                pane.items().count(),
13496                1,
13497                "Should have 1 item remaining after auto-close"
13498            );
13499        });
13500
13501        // Check navigation history after close
13502        let has_item = pane.read_with(cx, |pane, cx| {
13503            let mut has_item = false;
13504            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13505                if entry.item.id() == item1_id {
13506                    has_item = true;
13507                }
13508            });
13509            has_item
13510        });
13511
13512        assert!(
13513            !has_item,
13514            "Navigation history should not contain closed item entries"
13515        );
13516    }
13517
13518    #[gpui::test]
13519    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13520        cx: &mut TestAppContext,
13521    ) {
13522        init_test(cx);
13523
13524        let fs = FakeFs::new(cx.background_executor.clone());
13525        let project = Project::test(fs, [], cx).await;
13526        let (workspace, cx) =
13527            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13528        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13529
13530        let dirty_regular_buffer = cx.new(|cx| {
13531            TestItem::new(cx)
13532                .with_dirty(true)
13533                .with_label("1.txt")
13534                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13535        });
13536        let dirty_regular_buffer_2 = cx.new(|cx| {
13537            TestItem::new(cx)
13538                .with_dirty(true)
13539                .with_label("2.txt")
13540                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13541        });
13542        let clear_regular_buffer = cx.new(|cx| {
13543            TestItem::new(cx)
13544                .with_label("3.txt")
13545                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13546        });
13547
13548        let dirty_multi_buffer = cx.new(|cx| {
13549            TestItem::new(cx)
13550                .with_dirty(true)
13551                .with_buffer_kind(ItemBufferKind::Multibuffer)
13552                .with_label("Fake Project Search")
13553                .with_project_items(&[
13554                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13555                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13556                    clear_regular_buffer.read(cx).project_items[0].clone(),
13557                ])
13558        });
13559        workspace.update_in(cx, |workspace, window, cx| {
13560            workspace.add_item(
13561                pane.clone(),
13562                Box::new(dirty_regular_buffer.clone()),
13563                None,
13564                false,
13565                false,
13566                window,
13567                cx,
13568            );
13569            workspace.add_item(
13570                pane.clone(),
13571                Box::new(dirty_regular_buffer_2.clone()),
13572                None,
13573                false,
13574                false,
13575                window,
13576                cx,
13577            );
13578            workspace.add_item(
13579                pane.clone(),
13580                Box::new(dirty_multi_buffer.clone()),
13581                None,
13582                false,
13583                false,
13584                window,
13585                cx,
13586            );
13587        });
13588
13589        pane.update_in(cx, |pane, window, cx| {
13590            pane.activate_item(2, true, true, window, cx);
13591            assert_eq!(
13592                pane.active_item().unwrap().item_id(),
13593                dirty_multi_buffer.item_id(),
13594                "Should select the multi buffer in the pane"
13595            );
13596        });
13597        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13598            pane.close_active_item(
13599                &CloseActiveItem {
13600                    save_intent: None,
13601                    close_pinned: false,
13602                },
13603                window,
13604                cx,
13605            )
13606        });
13607        cx.background_executor.run_until_parked();
13608        assert!(
13609            !cx.has_pending_prompt(),
13610            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
13611        );
13612        close_multi_buffer_task
13613            .await
13614            .expect("Closing multi buffer failed");
13615        pane.update(cx, |pane, cx| {
13616            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
13617            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
13618            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
13619            assert_eq!(
13620                pane.items()
13621                    .map(|item| item.item_id())
13622                    .sorted()
13623                    .collect::<Vec<_>>(),
13624                vec![
13625                    dirty_regular_buffer.item_id(),
13626                    dirty_regular_buffer_2.item_id(),
13627                ],
13628                "Should have no multi buffer left in the pane"
13629            );
13630            assert!(dirty_regular_buffer.read(cx).is_dirty);
13631            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
13632        });
13633    }
13634
13635    #[gpui::test]
13636    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
13637        init_test(cx);
13638        let fs = FakeFs::new(cx.executor());
13639        let project = Project::test(fs, [], cx).await;
13640        let (multi_workspace, cx) =
13641            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13642        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13643
13644        // Add a new panel to the right dock, opening the dock and setting the
13645        // focus to the new panel.
13646        let panel = workspace.update_in(cx, |workspace, window, cx| {
13647            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13648            workspace.add_panel(panel.clone(), window, cx);
13649
13650            workspace
13651                .right_dock()
13652                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13653
13654            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13655
13656            panel
13657        });
13658
13659        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13660        // panel to the next valid position which, in this case, is the left
13661        // dock.
13662        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13663        workspace.update(cx, |workspace, cx| {
13664            assert!(workspace.left_dock().read(cx).is_open());
13665            assert_eq!(panel.read(cx).position, DockPosition::Left);
13666        });
13667
13668        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13669        // panel to the next valid position which, in this case, is the bottom
13670        // dock.
13671        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13672        workspace.update(cx, |workspace, cx| {
13673            assert!(workspace.bottom_dock().read(cx).is_open());
13674            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
13675        });
13676
13677        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
13678        // around moving the panel to its initial position, the right dock.
13679        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13680        workspace.update(cx, |workspace, cx| {
13681            assert!(workspace.right_dock().read(cx).is_open());
13682            assert_eq!(panel.read(cx).position, DockPosition::Right);
13683        });
13684
13685        // Remove focus from the panel, ensuring that, if the panel is not
13686        // focused, the `MoveFocusedPanelToNextPosition` action does not update
13687        // the panel's position, so the panel is still in the right dock.
13688        workspace.update_in(cx, |workspace, window, cx| {
13689            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13690        });
13691
13692        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13693        workspace.update(cx, |workspace, cx| {
13694            assert!(workspace.right_dock().read(cx).is_open());
13695            assert_eq!(panel.read(cx).position, DockPosition::Right);
13696        });
13697    }
13698
13699    #[gpui::test]
13700    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
13701        init_test(cx);
13702
13703        let fs = FakeFs::new(cx.executor());
13704        let project = Project::test(fs, [], cx).await;
13705        let (workspace, cx) =
13706            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13707
13708        let item_1 = cx.new(|cx| {
13709            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13710        });
13711        workspace.update_in(cx, |workspace, window, cx| {
13712            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13713            workspace.move_item_to_pane_in_direction(
13714                &MoveItemToPaneInDirection {
13715                    direction: SplitDirection::Right,
13716                    focus: true,
13717                    clone: false,
13718                },
13719                window,
13720                cx,
13721            );
13722            workspace.move_item_to_pane_at_index(
13723                &MoveItemToPane {
13724                    destination: 3,
13725                    focus: true,
13726                    clone: false,
13727                },
13728                window,
13729                cx,
13730            );
13731
13732            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
13733            assert_eq!(
13734                pane_items_paths(&workspace.active_pane, cx),
13735                vec!["first.txt".to_string()],
13736                "Single item was not moved anywhere"
13737            );
13738        });
13739
13740        let item_2 = cx.new(|cx| {
13741            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
13742        });
13743        workspace.update_in(cx, |workspace, window, cx| {
13744            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
13745            assert_eq!(
13746                pane_items_paths(&workspace.panes[0], cx),
13747                vec!["first.txt".to_string(), "second.txt".to_string()],
13748            );
13749            workspace.move_item_to_pane_in_direction(
13750                &MoveItemToPaneInDirection {
13751                    direction: SplitDirection::Right,
13752                    focus: true,
13753                    clone: false,
13754                },
13755                window,
13756                cx,
13757            );
13758
13759            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
13760            assert_eq!(
13761                pane_items_paths(&workspace.panes[0], cx),
13762                vec!["first.txt".to_string()],
13763                "After moving, one item should be left in the original pane"
13764            );
13765            assert_eq!(
13766                pane_items_paths(&workspace.panes[1], cx),
13767                vec!["second.txt".to_string()],
13768                "New item should have been moved to the new pane"
13769            );
13770        });
13771
13772        let item_3 = cx.new(|cx| {
13773            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
13774        });
13775        workspace.update_in(cx, |workspace, window, cx| {
13776            let original_pane = workspace.panes[0].clone();
13777            workspace.set_active_pane(&original_pane, window, cx);
13778            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
13779            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
13780            assert_eq!(
13781                pane_items_paths(&workspace.active_pane, cx),
13782                vec!["first.txt".to_string(), "third.txt".to_string()],
13783                "New pane should be ready to move one item out"
13784            );
13785
13786            workspace.move_item_to_pane_at_index(
13787                &MoveItemToPane {
13788                    destination: 3,
13789                    focus: true,
13790                    clone: false,
13791                },
13792                window,
13793                cx,
13794            );
13795            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
13796            assert_eq!(
13797                pane_items_paths(&workspace.active_pane, cx),
13798                vec!["first.txt".to_string()],
13799                "After moving, one item should be left in the original pane"
13800            );
13801            assert_eq!(
13802                pane_items_paths(&workspace.panes[1], cx),
13803                vec!["second.txt".to_string()],
13804                "Previously created pane should be unchanged"
13805            );
13806            assert_eq!(
13807                pane_items_paths(&workspace.panes[2], cx),
13808                vec!["third.txt".to_string()],
13809                "New item should have been moved to the new pane"
13810            );
13811        });
13812    }
13813
13814    #[gpui::test]
13815    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
13816        init_test(cx);
13817
13818        let fs = FakeFs::new(cx.executor());
13819        let project = Project::test(fs, [], cx).await;
13820        let (workspace, cx) =
13821            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13822
13823        let item_1 = cx.new(|cx| {
13824            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13825        });
13826        workspace.update_in(cx, |workspace, window, cx| {
13827            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13828            workspace.move_item_to_pane_in_direction(
13829                &MoveItemToPaneInDirection {
13830                    direction: SplitDirection::Right,
13831                    focus: true,
13832                    clone: true,
13833                },
13834                window,
13835                cx,
13836            );
13837        });
13838        cx.run_until_parked();
13839        workspace.update_in(cx, |workspace, window, cx| {
13840            workspace.move_item_to_pane_at_index(
13841                &MoveItemToPane {
13842                    destination: 3,
13843                    focus: true,
13844                    clone: true,
13845                },
13846                window,
13847                cx,
13848            );
13849        });
13850        cx.run_until_parked();
13851
13852        workspace.update(cx, |workspace, cx| {
13853            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
13854            for pane in workspace.panes() {
13855                assert_eq!(
13856                    pane_items_paths(pane, cx),
13857                    vec!["first.txt".to_string()],
13858                    "Single item exists in all panes"
13859                );
13860            }
13861        });
13862
13863        // verify that the active pane has been updated after waiting for the
13864        // pane focus event to fire and resolve
13865        workspace.read_with(cx, |workspace, _app| {
13866            assert_eq!(
13867                workspace.active_pane(),
13868                &workspace.panes[2],
13869                "The third pane should be the active one: {:?}",
13870                workspace.panes
13871            );
13872        })
13873    }
13874
13875    #[gpui::test]
13876    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
13877        init_test(cx);
13878
13879        let fs = FakeFs::new(cx.executor());
13880        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
13881
13882        let project = Project::test(fs, ["root".as_ref()], cx).await;
13883        let (workspace, cx) =
13884            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13885
13886        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13887        // Add item to pane A with project path
13888        let item_a = cx.new(|cx| {
13889            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13890        });
13891        workspace.update_in(cx, |workspace, window, cx| {
13892            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
13893        });
13894
13895        // Split to create pane B
13896        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
13897            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
13898        });
13899
13900        // Add item with SAME project path to pane B, and pin it
13901        let item_b = cx.new(|cx| {
13902            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13903        });
13904        pane_b.update_in(cx, |pane, window, cx| {
13905            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13906            pane.set_pinned_count(1);
13907        });
13908
13909        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
13910        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
13911
13912        // close_pinned: false should only close the unpinned copy
13913        workspace.update_in(cx, |workspace, window, cx| {
13914            workspace.close_item_in_all_panes(
13915                &CloseItemInAllPanes {
13916                    save_intent: Some(SaveIntent::Close),
13917                    close_pinned: false,
13918                },
13919                window,
13920                cx,
13921            )
13922        });
13923        cx.executor().run_until_parked();
13924
13925        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
13926        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13927        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
13928        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
13929
13930        // Split again, seeing as closing the previous item also closed its
13931        // pane, so only pane remains, which does not allow us to properly test
13932        // that both items close when `close_pinned: true`.
13933        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
13934            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
13935        });
13936
13937        // Add an item with the same project path to pane C so that
13938        // close_item_in_all_panes can determine what to close across all panes
13939        // (it reads the active item from the active pane, and split_pane
13940        // creates an empty pane).
13941        let item_c = cx.new(|cx| {
13942            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13943        });
13944        pane_c.update_in(cx, |pane, window, cx| {
13945            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
13946        });
13947
13948        // close_pinned: true should close the pinned copy too
13949        workspace.update_in(cx, |workspace, window, cx| {
13950            let panes_count = workspace.panes().len();
13951            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
13952
13953            workspace.close_item_in_all_panes(
13954                &CloseItemInAllPanes {
13955                    save_intent: Some(SaveIntent::Close),
13956                    close_pinned: true,
13957                },
13958                window,
13959                cx,
13960            )
13961        });
13962        cx.executor().run_until_parked();
13963
13964        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13965        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
13966        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
13967        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
13968    }
13969
13970    mod register_project_item_tests {
13971
13972        use super::*;
13973
13974        // View
13975        struct TestPngItemView {
13976            focus_handle: FocusHandle,
13977        }
13978        // Model
13979        struct TestPngItem {}
13980
13981        impl project::ProjectItem for TestPngItem {
13982            fn try_open(
13983                _project: &Entity<Project>,
13984                path: &ProjectPath,
13985                cx: &mut App,
13986            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13987                if path.path.extension().unwrap() == "png" {
13988                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
13989                } else {
13990                    None
13991                }
13992            }
13993
13994            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13995                None
13996            }
13997
13998            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13999                None
14000            }
14001
14002            fn is_dirty(&self) -> bool {
14003                false
14004            }
14005        }
14006
14007        impl Item for TestPngItemView {
14008            type Event = ();
14009            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14010                "".into()
14011            }
14012        }
14013        impl EventEmitter<()> for TestPngItemView {}
14014        impl Focusable for TestPngItemView {
14015            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14016                self.focus_handle.clone()
14017            }
14018        }
14019
14020        impl Render for TestPngItemView {
14021            fn render(
14022                &mut self,
14023                _window: &mut Window,
14024                _cx: &mut Context<Self>,
14025            ) -> impl IntoElement {
14026                Empty
14027            }
14028        }
14029
14030        impl ProjectItem for TestPngItemView {
14031            type Item = TestPngItem;
14032
14033            fn for_project_item(
14034                _project: Entity<Project>,
14035                _pane: Option<&Pane>,
14036                _item: Entity<Self::Item>,
14037                _: &mut Window,
14038                cx: &mut Context<Self>,
14039            ) -> Self
14040            where
14041                Self: Sized,
14042            {
14043                Self {
14044                    focus_handle: cx.focus_handle(),
14045                }
14046            }
14047        }
14048
14049        // View
14050        struct TestIpynbItemView {
14051            focus_handle: FocusHandle,
14052        }
14053        // Model
14054        struct TestIpynbItem {}
14055
14056        impl project::ProjectItem for TestIpynbItem {
14057            fn try_open(
14058                _project: &Entity<Project>,
14059                path: &ProjectPath,
14060                cx: &mut App,
14061            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14062                if path.path.extension().unwrap() == "ipynb" {
14063                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
14064                } else {
14065                    None
14066                }
14067            }
14068
14069            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14070                None
14071            }
14072
14073            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14074                None
14075            }
14076
14077            fn is_dirty(&self) -> bool {
14078                false
14079            }
14080        }
14081
14082        impl Item for TestIpynbItemView {
14083            type Event = ();
14084            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14085                "".into()
14086            }
14087        }
14088        impl EventEmitter<()> for TestIpynbItemView {}
14089        impl Focusable for TestIpynbItemView {
14090            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14091                self.focus_handle.clone()
14092            }
14093        }
14094
14095        impl Render for TestIpynbItemView {
14096            fn render(
14097                &mut self,
14098                _window: &mut Window,
14099                _cx: &mut Context<Self>,
14100            ) -> impl IntoElement {
14101                Empty
14102            }
14103        }
14104
14105        impl ProjectItem for TestIpynbItemView {
14106            type Item = TestIpynbItem;
14107
14108            fn for_project_item(
14109                _project: Entity<Project>,
14110                _pane: Option<&Pane>,
14111                _item: Entity<Self::Item>,
14112                _: &mut Window,
14113                cx: &mut Context<Self>,
14114            ) -> Self
14115            where
14116                Self: Sized,
14117            {
14118                Self {
14119                    focus_handle: cx.focus_handle(),
14120                }
14121            }
14122        }
14123
14124        struct TestAlternatePngItemView {
14125            focus_handle: FocusHandle,
14126        }
14127
14128        impl Item for TestAlternatePngItemView {
14129            type Event = ();
14130            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14131                "".into()
14132            }
14133        }
14134
14135        impl EventEmitter<()> for TestAlternatePngItemView {}
14136        impl Focusable for TestAlternatePngItemView {
14137            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14138                self.focus_handle.clone()
14139            }
14140        }
14141
14142        impl Render for TestAlternatePngItemView {
14143            fn render(
14144                &mut self,
14145                _window: &mut Window,
14146                _cx: &mut Context<Self>,
14147            ) -> impl IntoElement {
14148                Empty
14149            }
14150        }
14151
14152        impl ProjectItem for TestAlternatePngItemView {
14153            type Item = TestPngItem;
14154
14155            fn for_project_item(
14156                _project: Entity<Project>,
14157                _pane: Option<&Pane>,
14158                _item: Entity<Self::Item>,
14159                _: &mut Window,
14160                cx: &mut Context<Self>,
14161            ) -> Self
14162            where
14163                Self: Sized,
14164            {
14165                Self {
14166                    focus_handle: cx.focus_handle(),
14167                }
14168            }
14169        }
14170
14171        #[gpui::test]
14172        async fn test_register_project_item(cx: &mut TestAppContext) {
14173            init_test(cx);
14174
14175            cx.update(|cx| {
14176                register_project_item::<TestPngItemView>(cx);
14177                register_project_item::<TestIpynbItemView>(cx);
14178            });
14179
14180            let fs = FakeFs::new(cx.executor());
14181            fs.insert_tree(
14182                "/root1",
14183                json!({
14184                    "one.png": "BINARYDATAHERE",
14185                    "two.ipynb": "{ totally a notebook }",
14186                    "three.txt": "editing text, sure why not?"
14187                }),
14188            )
14189            .await;
14190
14191            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14192            let (workspace, cx) =
14193                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14194
14195            let worktree_id = project.update(cx, |project, cx| {
14196                project.worktrees(cx).next().unwrap().read(cx).id()
14197            });
14198
14199            let handle = workspace
14200                .update_in(cx, |workspace, window, cx| {
14201                    let project_path = (worktree_id, rel_path("one.png"));
14202                    workspace.open_path(project_path, None, true, window, cx)
14203                })
14204                .await
14205                .unwrap();
14206
14207            // Now we can check if the handle we got back errored or not
14208            assert_eq!(
14209                handle.to_any_view().entity_type(),
14210                TypeId::of::<TestPngItemView>()
14211            );
14212
14213            let handle = workspace
14214                .update_in(cx, |workspace, window, cx| {
14215                    let project_path = (worktree_id, rel_path("two.ipynb"));
14216                    workspace.open_path(project_path, None, true, window, cx)
14217                })
14218                .await
14219                .unwrap();
14220
14221            assert_eq!(
14222                handle.to_any_view().entity_type(),
14223                TypeId::of::<TestIpynbItemView>()
14224            );
14225
14226            let handle = workspace
14227                .update_in(cx, |workspace, window, cx| {
14228                    let project_path = (worktree_id, rel_path("three.txt"));
14229                    workspace.open_path(project_path, None, true, window, cx)
14230                })
14231                .await;
14232            assert!(handle.is_err());
14233        }
14234
14235        #[gpui::test]
14236        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14237            init_test(cx);
14238
14239            cx.update(|cx| {
14240                register_project_item::<TestPngItemView>(cx);
14241                register_project_item::<TestAlternatePngItemView>(cx);
14242            });
14243
14244            let fs = FakeFs::new(cx.executor());
14245            fs.insert_tree(
14246                "/root1",
14247                json!({
14248                    "one.png": "BINARYDATAHERE",
14249                    "two.ipynb": "{ totally a notebook }",
14250                    "three.txt": "editing text, sure why not?"
14251                }),
14252            )
14253            .await;
14254            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14255            let (workspace, cx) =
14256                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14257            let worktree_id = project.update(cx, |project, cx| {
14258                project.worktrees(cx).next().unwrap().read(cx).id()
14259            });
14260
14261            let handle = workspace
14262                .update_in(cx, |workspace, window, cx| {
14263                    let project_path = (worktree_id, rel_path("one.png"));
14264                    workspace.open_path(project_path, None, true, window, cx)
14265                })
14266                .await
14267                .unwrap();
14268
14269            // This _must_ be the second item registered
14270            assert_eq!(
14271                handle.to_any_view().entity_type(),
14272                TypeId::of::<TestAlternatePngItemView>()
14273            );
14274
14275            let handle = workspace
14276                .update_in(cx, |workspace, window, cx| {
14277                    let project_path = (worktree_id, rel_path("three.txt"));
14278                    workspace.open_path(project_path, None, true, window, cx)
14279                })
14280                .await;
14281            assert!(handle.is_err());
14282        }
14283    }
14284
14285    #[gpui::test]
14286    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14287        init_test(cx);
14288
14289        let fs = FakeFs::new(cx.executor());
14290        let project = Project::test(fs, [], cx).await;
14291        let (workspace, _cx) =
14292            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14293
14294        // Test with status bar shown (default)
14295        workspace.read_with(cx, |workspace, cx| {
14296            let visible = workspace.status_bar_visible(cx);
14297            assert!(visible, "Status bar should be visible by default");
14298        });
14299
14300        // Test with status bar hidden
14301        cx.update_global(|store: &mut SettingsStore, cx| {
14302            store.update_user_settings(cx, |settings| {
14303                settings.status_bar.get_or_insert_default().show = Some(false);
14304            });
14305        });
14306
14307        workspace.read_with(cx, |workspace, cx| {
14308            let visible = workspace.status_bar_visible(cx);
14309            assert!(!visible, "Status bar should be hidden when show is false");
14310        });
14311
14312        // Test with status bar shown explicitly
14313        cx.update_global(|store: &mut SettingsStore, cx| {
14314            store.update_user_settings(cx, |settings| {
14315                settings.status_bar.get_or_insert_default().show = Some(true);
14316            });
14317        });
14318
14319        workspace.read_with(cx, |workspace, cx| {
14320            let visible = workspace.status_bar_visible(cx);
14321            assert!(visible, "Status bar should be visible when show is true");
14322        });
14323    }
14324
14325    #[gpui::test]
14326    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14327        init_test(cx);
14328
14329        let fs = FakeFs::new(cx.executor());
14330        let project = Project::test(fs, [], cx).await;
14331        let (multi_workspace, cx) =
14332            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14333        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14334        let panel = workspace.update_in(cx, |workspace, window, cx| {
14335            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14336            workspace.add_panel(panel.clone(), window, cx);
14337
14338            workspace
14339                .right_dock()
14340                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14341
14342            panel
14343        });
14344
14345        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14346        let item_a = cx.new(TestItem::new);
14347        let item_b = cx.new(TestItem::new);
14348        let item_a_id = item_a.entity_id();
14349        let item_b_id = item_b.entity_id();
14350
14351        pane.update_in(cx, |pane, window, cx| {
14352            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14353            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14354        });
14355
14356        pane.read_with(cx, |pane, _| {
14357            assert_eq!(pane.items_len(), 2);
14358            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14359        });
14360
14361        workspace.update_in(cx, |workspace, window, cx| {
14362            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14363        });
14364
14365        workspace.update_in(cx, |_, window, cx| {
14366            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14367        });
14368
14369        // Assert that the `pane::CloseActiveItem` action is handled at the
14370        // workspace level when one of the dock panels is focused and, in that
14371        // case, the center pane's active item is closed but the focus is not
14372        // moved.
14373        cx.dispatch_action(pane::CloseActiveItem::default());
14374        cx.run_until_parked();
14375
14376        pane.read_with(cx, |pane, _| {
14377            assert_eq!(pane.items_len(), 1);
14378            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14379        });
14380
14381        workspace.update_in(cx, |workspace, window, cx| {
14382            assert!(workspace.right_dock().read(cx).is_open());
14383            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14384        });
14385    }
14386
14387    #[gpui::test]
14388    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14389        init_test(cx);
14390        let fs = FakeFs::new(cx.executor());
14391
14392        let project_a = Project::test(fs.clone(), [], cx).await;
14393        let project_b = Project::test(fs, [], cx).await;
14394
14395        let multi_workspace_handle =
14396            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14397        cx.run_until_parked();
14398
14399        let workspace_a = multi_workspace_handle
14400            .read_with(cx, |mw, _| mw.workspace().clone())
14401            .unwrap();
14402
14403        let _workspace_b = multi_workspace_handle
14404            .update(cx, |mw, window, cx| {
14405                mw.test_add_workspace(project_b, window, cx)
14406            })
14407            .unwrap();
14408
14409        // Switch to workspace A
14410        multi_workspace_handle
14411            .update(cx, |mw, window, cx| {
14412                mw.activate_index(0, window, cx);
14413            })
14414            .unwrap();
14415
14416        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14417
14418        // Add a panel to workspace A's right dock and open the dock
14419        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14420            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14421            workspace.add_panel(panel.clone(), window, cx);
14422            workspace
14423                .right_dock()
14424                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14425            panel
14426        });
14427
14428        // Focus the panel through the workspace (matching existing test pattern)
14429        workspace_a.update_in(cx, |workspace, window, cx| {
14430            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14431        });
14432
14433        // Zoom the panel
14434        panel.update_in(cx, |panel, window, cx| {
14435            panel.set_zoomed(true, window, cx);
14436        });
14437
14438        // Verify the panel is zoomed and the dock is open
14439        workspace_a.update_in(cx, |workspace, window, cx| {
14440            assert!(
14441                workspace.right_dock().read(cx).is_open(),
14442                "dock should be open before switch"
14443            );
14444            assert!(
14445                panel.is_zoomed(window, cx),
14446                "panel should be zoomed before switch"
14447            );
14448            assert!(
14449                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14450                "panel should be focused before switch"
14451            );
14452        });
14453
14454        // Switch to workspace B
14455        multi_workspace_handle
14456            .update(cx, |mw, window, cx| {
14457                mw.activate_index(1, window, cx);
14458            })
14459            .unwrap();
14460        cx.run_until_parked();
14461
14462        // Switch back to workspace A
14463        multi_workspace_handle
14464            .update(cx, |mw, window, cx| {
14465                mw.activate_index(0, window, cx);
14466            })
14467            .unwrap();
14468        cx.run_until_parked();
14469
14470        // Verify the panel is still zoomed and the dock is still open
14471        workspace_a.update_in(cx, |workspace, window, cx| {
14472            assert!(
14473                workspace.right_dock().read(cx).is_open(),
14474                "dock should still be open after switching back"
14475            );
14476            assert!(
14477                panel.is_zoomed(window, cx),
14478                "panel should still be zoomed after switching back"
14479            );
14480        });
14481    }
14482
14483    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14484        pane.read(cx)
14485            .items()
14486            .flat_map(|item| {
14487                item.project_paths(cx)
14488                    .into_iter()
14489                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14490            })
14491            .collect()
14492    }
14493
14494    pub fn init_test(cx: &mut TestAppContext) {
14495        cx.update(|cx| {
14496            let settings_store = SettingsStore::test(cx);
14497            cx.set_global(settings_store);
14498            cx.set_global(db::AppDatabase::test_new());
14499            theme::init(theme::LoadThemes::JustBase, cx);
14500        });
14501    }
14502
14503    #[gpui::test]
14504    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14505        use settings::{ThemeName, ThemeSelection};
14506        use theme::SystemAppearance;
14507        use zed_actions::theme::ToggleMode;
14508
14509        init_test(cx);
14510
14511        let fs = FakeFs::new(cx.executor());
14512        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14513
14514        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14515            .await;
14516
14517        // Build a test project and workspace view so the test can invoke
14518        // the workspace action handler the same way the UI would.
14519        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14520        let (workspace, cx) =
14521            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14522
14523        // Seed the settings file with a plain static light theme so the
14524        // first toggle always starts from a known persisted state.
14525        workspace.update_in(cx, |_workspace, _window, cx| {
14526            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14527            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14528                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14529            });
14530        });
14531        cx.executor().advance_clock(Duration::from_millis(200));
14532        cx.run_until_parked();
14533
14534        // Confirm the initial persisted settings contain the static theme
14535        // we just wrote before any toggling happens.
14536        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14537        assert!(settings_text.contains(r#""theme": "One Light""#));
14538
14539        // Toggle once. This should migrate the persisted theme settings
14540        // into light/dark slots and enable system mode.
14541        workspace.update_in(cx, |workspace, window, cx| {
14542            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14543        });
14544        cx.executor().advance_clock(Duration::from_millis(200));
14545        cx.run_until_parked();
14546
14547        // 1. Static -> Dynamic
14548        // this assertion checks theme changed from static to dynamic.
14549        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14550        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14551        assert_eq!(
14552            parsed["theme"],
14553            serde_json::json!({
14554                "mode": "system",
14555                "light": "One Light",
14556                "dark": "One Dark"
14557            })
14558        );
14559
14560        // 2. Toggle again, suppose it will change the mode to light
14561        workspace.update_in(cx, |workspace, window, cx| {
14562            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14563        });
14564        cx.executor().advance_clock(Duration::from_millis(200));
14565        cx.run_until_parked();
14566
14567        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14568        assert!(settings_text.contains(r#""mode": "light""#));
14569    }
14570
14571    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14572        let item = TestProjectItem::new(id, path, cx);
14573        item.update(cx, |item, _| {
14574            item.is_dirty = true;
14575        });
14576        item
14577    }
14578
14579    #[gpui::test]
14580    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14581        cx: &mut gpui::TestAppContext,
14582    ) {
14583        init_test(cx);
14584        let fs = FakeFs::new(cx.executor());
14585
14586        let project = Project::test(fs, [], cx).await;
14587        let (workspace, cx) =
14588            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14589
14590        let panel = workspace.update_in(cx, |workspace, window, cx| {
14591            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14592            workspace.add_panel(panel.clone(), window, cx);
14593            workspace
14594                .right_dock()
14595                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14596            panel
14597        });
14598
14599        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14600        pane.update_in(cx, |pane, window, cx| {
14601            let item = cx.new(TestItem::new);
14602            pane.add_item(Box::new(item), true, true, None, window, cx);
14603        });
14604
14605        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
14606        // mirrors the real-world flow and avoids side effects from directly
14607        // focusing the panel while the center pane is active.
14608        workspace.update_in(cx, |workspace, window, cx| {
14609            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14610        });
14611
14612        panel.update_in(cx, |panel, window, cx| {
14613            panel.set_zoomed(true, window, cx);
14614        });
14615
14616        workspace.update_in(cx, |workspace, window, cx| {
14617            assert!(workspace.right_dock().read(cx).is_open());
14618            assert!(panel.is_zoomed(window, cx));
14619            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14620        });
14621
14622        // Simulate a spurious pane::Event::Focus on the center pane while the
14623        // panel still has focus. This mirrors what happens during macOS window
14624        // activation: the center pane fires a focus event even though actual
14625        // focus remains on the dock panel.
14626        pane.update_in(cx, |_, _, cx| {
14627            cx.emit(pane::Event::Focus);
14628        });
14629
14630        // The dock must remain open because the panel had focus at the time the
14631        // event was processed. Before the fix, dock_to_preserve was None for
14632        // panels that don't implement pane(), causing the dock to close.
14633        workspace.update_in(cx, |workspace, window, cx| {
14634            assert!(
14635                workspace.right_dock().read(cx).is_open(),
14636                "Dock should stay open when its zoomed panel (without pane()) still has focus"
14637            );
14638            assert!(panel.is_zoomed(window, cx));
14639        });
14640    }
14641
14642    #[gpui::test]
14643    async fn test_panels_stay_open_after_position_change_and_settings_update(
14644        cx: &mut gpui::TestAppContext,
14645    ) {
14646        init_test(cx);
14647        let fs = FakeFs::new(cx.executor());
14648        let project = Project::test(fs, [], cx).await;
14649        let (workspace, cx) =
14650            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14651
14652        // Add two panels to the left dock and open it.
14653        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
14654            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
14655            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
14656            workspace.add_panel(panel_a.clone(), window, cx);
14657            workspace.add_panel(panel_b.clone(), window, cx);
14658            workspace.left_dock().update(cx, |dock, cx| {
14659                dock.set_open(true, window, cx);
14660                dock.activate_panel(0, window, cx);
14661            });
14662            (panel_a, panel_b)
14663        });
14664
14665        workspace.update_in(cx, |workspace, _, cx| {
14666            assert!(workspace.left_dock().read(cx).is_open());
14667        });
14668
14669        // Simulate a feature flag changing default dock positions: both panels
14670        // move from Left to Right.
14671        workspace.update_in(cx, |_workspace, _window, cx| {
14672            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
14673            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
14674            cx.update_global::<SettingsStore, _>(|_, _| {});
14675        });
14676
14677        // Both panels should now be in the right dock.
14678        workspace.update_in(cx, |workspace, _, cx| {
14679            let right_dock = workspace.right_dock().read(cx);
14680            assert_eq!(right_dock.panels_len(), 2);
14681        });
14682
14683        // Open the right dock and activate panel_b (simulating the user
14684        // opening the panel after it moved).
14685        workspace.update_in(cx, |workspace, window, cx| {
14686            workspace.right_dock().update(cx, |dock, cx| {
14687                dock.set_open(true, window, cx);
14688                dock.activate_panel(1, window, cx);
14689            });
14690        });
14691
14692        // Now trigger another SettingsStore change
14693        workspace.update_in(cx, |_workspace, _window, cx| {
14694            cx.update_global::<SettingsStore, _>(|_, _| {});
14695        });
14696
14697        workspace.update_in(cx, |workspace, _, cx| {
14698            assert!(
14699                workspace.right_dock().read(cx).is_open(),
14700                "Right dock should still be open after a settings change"
14701            );
14702            assert_eq!(
14703                workspace.right_dock().read(cx).panels_len(),
14704                2,
14705                "Both panels should still be in the right dock"
14706            );
14707        });
14708    }
14709}