workspace.rs

    1pub mod active_file_name;
    2pub mod dock;
    3pub mod history_manager;
    4pub mod invalid_item_view;
    5pub mod item;
    6mod modal_layer;
    7mod multi_workspace;
    8pub mod notifications;
    9pub mod pane;
   10pub mod pane_group;
   11pub mod path_list {
   12    pub use util::path_list::{PathList, SerializedPathList};
   13}
   14mod persistence;
   15pub mod searchable;
   16mod security_modal;
   17pub mod shared_screen;
   18use db::smol::future::yield_now;
   19pub use shared_screen::SharedScreen;
   20mod status_bar;
   21pub mod tasks;
   22mod theme_preview;
   23mod toast_layer;
   24mod toolbar;
   25pub mod welcome;
   26mod workspace_settings;
   27
   28pub use crate::notifications::NotificationFrame;
   29pub use dock::Panel;
   30pub use multi_workspace::{
   31    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace,
   32    MultiWorkspaceEvent, NextWorkspace, PreviousWorkspace, Sidebar, SidebarHandle,
   33    SidebarRenderState, SidebarSide, ToggleWorkspaceSidebar, sidebar_side_context_menu,
   34};
   35pub use path_list::{PathList, SerializedPathList};
   36pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   37
   38use anyhow::{Context as _, Result, anyhow};
   39use client::{
   40    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   41    proto::{self, ErrorCode, PanelId, PeerId},
   42};
   43use collections::{HashMap, HashSet, hash_map};
   44use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   45use fs::Fs;
   46use futures::{
   47    Future, FutureExt, StreamExt,
   48    channel::{
   49        mpsc::{self, UnboundedReceiver, UnboundedSender},
   50        oneshot,
   51    },
   52    future::{Shared, try_join_all},
   53};
   54use gpui::{
   55    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Axis, Bounds,
   56    Context, CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   57    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   58    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   59    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   60    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   61};
   62pub use history_manager::*;
   63pub use item::{
   64    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   65    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   66};
   67use itertools::Itertools;
   68use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   69pub use modal_layer::*;
   70use node_runtime::NodeRuntime;
   71use notifications::{
   72    DetachAndPromptErr, Notifications, dismiss_app_notification,
   73    simple_message_notification::MessageNotification,
   74};
   75pub use pane::*;
   76pub use pane_group::{
   77    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   78    SplitDirection,
   79};
   80use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   81pub use persistence::{
   82    WorkspaceDb, delete_unloaded_items,
   83    model::{
   84        DockStructure, ItemId, SerializedMultiWorkspace, SerializedWorkspaceLocation,
   85        SessionWorkspace,
   86    },
   87    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   88};
   89use postage::stream::Stream;
   90use project::{
   91    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   92    WorktreeSettings,
   93    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   94    project_settings::ProjectSettings,
   95    toolchain_store::ToolchainStoreEvent,
   96    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   97};
   98use remote::{
   99    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
  100    remote_client::ConnectionIdentifier,
  101};
  102use schemars::JsonSchema;
  103use serde::Deserialize;
  104use session::AppSession;
  105use settings::{
  106    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  107};
  108
  109use sqlez::{
  110    bindable::{Bind, Column, StaticColumnCount},
  111    statement::Statement,
  112};
  113use status_bar::StatusBar;
  114pub use status_bar::StatusItemView;
  115use std::{
  116    any::TypeId,
  117    borrow::Cow,
  118    cell::RefCell,
  119    cmp,
  120    collections::VecDeque,
  121    env,
  122    hash::Hash,
  123    path::{Path, PathBuf},
  124    process::ExitStatus,
  125    rc::Rc,
  126    sync::{
  127        Arc, LazyLock, Weak,
  128        atomic::{AtomicBool, AtomicUsize},
  129    },
  130    time::Duration,
  131};
  132use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  133use theme::{ActiveTheme, SystemAppearance};
  134use theme_settings::ThemeSettings;
  135pub use toolbar::{
  136    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  137};
  138pub use ui;
  139use ui::{Window, prelude::*};
  140use util::{
  141    ResultExt, TryFutureExt,
  142    paths::{PathStyle, SanitizedPath},
  143    rel_path::RelPath,
  144    serde::default_true,
  145};
  146use uuid::Uuid;
  147pub use workspace_settings::{
  148    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  149    WorkspaceSettings,
  150};
  151use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  152
  153use crate::{item::ItemBufferKind, notifications::NotificationId};
  154use crate::{
  155    persistence::{
  156        SerializedAxis,
  157        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  158    },
  159    security_modal::SecurityModal,
  160};
  161
  162pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  163
  164static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  165    env::var("ZED_WINDOW_SIZE")
  166        .ok()
  167        .as_deref()
  168        .and_then(parse_pixel_size_env_var)
  169});
  170
  171static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  172    env::var("ZED_WINDOW_POSITION")
  173        .ok()
  174        .as_deref()
  175        .and_then(parse_pixel_position_env_var)
  176});
  177
  178pub trait TerminalProvider {
  179    fn spawn(
  180        &self,
  181        task: SpawnInTerminal,
  182        window: &mut Window,
  183        cx: &mut App,
  184    ) -> Task<Option<Result<ExitStatus>>>;
  185}
  186
  187pub trait DebuggerProvider {
  188    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  189    fn start_session(
  190        &self,
  191        definition: DebugScenario,
  192        task_context: SharedTaskContext,
  193        active_buffer: Option<Entity<Buffer>>,
  194        worktree_id: Option<WorktreeId>,
  195        window: &mut Window,
  196        cx: &mut App,
  197    );
  198
  199    fn spawn_task_or_modal(
  200        &self,
  201        workspace: &mut Workspace,
  202        action: &Spawn,
  203        window: &mut Window,
  204        cx: &mut Context<Workspace>,
  205    );
  206
  207    fn task_scheduled(&self, cx: &mut App);
  208    fn debug_scenario_scheduled(&self, cx: &mut App);
  209    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  210
  211    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  212}
  213
  214/// Opens a file or directory.
  215#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  216#[action(namespace = workspace)]
  217pub struct Open {
  218    /// When true, opens in a new window. When false, adds to the current
  219    /// window as a new workspace (multi-workspace).
  220    #[serde(default = "Open::default_create_new_window")]
  221    pub create_new_window: bool,
  222}
  223
  224impl Open {
  225    pub const DEFAULT: Self = Self {
  226        create_new_window: true,
  227    };
  228
  229    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  230    /// the serde default and `Open::DEFAULT` stay in sync.
  231    fn default_create_new_window() -> bool {
  232        Self::DEFAULT.create_new_window
  233    }
  234}
  235
  236impl Default for Open {
  237    fn default() -> Self {
  238        Self::DEFAULT
  239    }
  240}
  241
  242actions!(
  243    workspace,
  244    [
  245        /// Activates the next pane in the workspace.
  246        ActivateNextPane,
  247        /// Activates the previous pane in the workspace.
  248        ActivatePreviousPane,
  249        /// Activates the last pane in the workspace.
  250        ActivateLastPane,
  251        /// Switches to the next window.
  252        ActivateNextWindow,
  253        /// Switches to the previous window.
  254        ActivatePreviousWindow,
  255        /// Adds a folder to the current project.
  256        AddFolderToProject,
  257        /// Clears all notifications.
  258        ClearAllNotifications,
  259        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  260        ClearNavigationHistory,
  261        /// Closes the active dock.
  262        CloseActiveDock,
  263        /// Closes all docks.
  264        CloseAllDocks,
  265        /// Toggles all docks.
  266        ToggleAllDocks,
  267        /// Closes the current window.
  268        CloseWindow,
  269        /// Closes the current project.
  270        CloseProject,
  271        /// Opens the feedback dialog.
  272        Feedback,
  273        /// Follows the next collaborator in the session.
  274        FollowNextCollaborator,
  275        /// Moves the focused panel to the next position.
  276        MoveFocusedPanelToNextPosition,
  277        /// Creates a new file.
  278        NewFile,
  279        /// Creates a new file in a vertical split.
  280        NewFileSplitVertical,
  281        /// Creates a new file in a horizontal split.
  282        NewFileSplitHorizontal,
  283        /// Opens a new search.
  284        NewSearch,
  285        /// Opens a new window.
  286        NewWindow,
  287        /// Opens multiple files.
  288        OpenFiles,
  289        /// Opens the current location in terminal.
  290        OpenInTerminal,
  291        /// Opens the component preview.
  292        OpenComponentPreview,
  293        /// Reloads the active item.
  294        ReloadActiveItem,
  295        /// Resets the active dock to its default size.
  296        ResetActiveDockSize,
  297        /// Resets all open docks to their default sizes.
  298        ResetOpenDocksSize,
  299        /// Reloads the application
  300        Reload,
  301        /// Saves the current file with a new name.
  302        SaveAs,
  303        /// Saves without formatting.
  304        SaveWithoutFormat,
  305        /// Shuts down all debug adapters.
  306        ShutdownDebugAdapters,
  307        /// Suppresses the current notification.
  308        SuppressNotification,
  309        /// Toggles the bottom dock.
  310        ToggleBottomDock,
  311        /// Toggles centered layout mode.
  312        ToggleCenteredLayout,
  313        /// Toggles edit prediction feature globally for all files.
  314        ToggleEditPrediction,
  315        /// Toggles the left dock.
  316        ToggleLeftDock,
  317        /// Toggles the right dock.
  318        ToggleRightDock,
  319        /// Toggles zoom on the active pane.
  320        ToggleZoom,
  321        /// Toggles read-only mode for the active item (if supported by that item).
  322        ToggleReadOnlyFile,
  323        /// Zooms in on the active pane.
  324        ZoomIn,
  325        /// Zooms out of the active pane.
  326        ZoomOut,
  327        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  328        /// If the modal is shown already, closes it without trusting any worktree.
  329        ToggleWorktreeSecurity,
  330        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  331        /// Requires restart to take effect on already opened projects.
  332        ClearTrustedWorktrees,
  333        /// Stops following a collaborator.
  334        Unfollow,
  335        /// Restores the banner.
  336        RestoreBanner,
  337        /// Toggles expansion of the selected item.
  338        ToggleExpandItem,
  339    ]
  340);
  341
  342/// Activates a specific pane by its index.
  343#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  344#[action(namespace = workspace)]
  345pub struct ActivatePane(pub usize);
  346
  347/// Moves an item to a specific pane by index.
  348#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  349#[action(namespace = workspace)]
  350#[serde(deny_unknown_fields)]
  351pub struct MoveItemToPane {
  352    #[serde(default = "default_1")]
  353    pub destination: usize,
  354    #[serde(default = "default_true")]
  355    pub focus: bool,
  356    #[serde(default)]
  357    pub clone: bool,
  358}
  359
  360fn default_1() -> usize {
  361    1
  362}
  363
  364/// Moves an item to a pane in the specified direction.
  365#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  366#[action(namespace = workspace)]
  367#[serde(deny_unknown_fields)]
  368pub struct MoveItemToPaneInDirection {
  369    #[serde(default = "default_right")]
  370    pub direction: SplitDirection,
  371    #[serde(default = "default_true")]
  372    pub focus: bool,
  373    #[serde(default)]
  374    pub clone: bool,
  375}
  376
  377/// Creates a new file in a split of the desired direction.
  378#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  379#[action(namespace = workspace)]
  380#[serde(deny_unknown_fields)]
  381pub struct NewFileSplit(pub SplitDirection);
  382
  383fn default_right() -> SplitDirection {
  384    SplitDirection::Right
  385}
  386
  387/// Saves all open files in the workspace.
  388#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  389#[action(namespace = workspace)]
  390#[serde(deny_unknown_fields)]
  391pub struct SaveAll {
  392    #[serde(default)]
  393    pub save_intent: Option<SaveIntent>,
  394}
  395
  396/// Saves the current file with the specified options.
  397#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  398#[action(namespace = workspace)]
  399#[serde(deny_unknown_fields)]
  400pub struct Save {
  401    #[serde(default)]
  402    pub save_intent: Option<SaveIntent>,
  403}
  404
  405/// Moves Focus to the central panes in the workspace.
  406#[derive(Clone, Debug, PartialEq, Eq, Action)]
  407#[action(namespace = workspace)]
  408pub struct FocusCenterPane;
  409
  410///  Closes all items and panes in the workspace.
  411#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  412#[action(namespace = workspace)]
  413#[serde(deny_unknown_fields)]
  414pub struct CloseAllItemsAndPanes {
  415    #[serde(default)]
  416    pub save_intent: Option<SaveIntent>,
  417}
  418
  419/// Closes all inactive tabs and panes in the workspace.
  420#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  421#[action(namespace = workspace)]
  422#[serde(deny_unknown_fields)]
  423pub struct CloseInactiveTabsAndPanes {
  424    #[serde(default)]
  425    pub save_intent: Option<SaveIntent>,
  426}
  427
  428/// Closes the active item across all panes.
  429#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  430#[action(namespace = workspace)]
  431#[serde(deny_unknown_fields)]
  432pub struct CloseItemInAllPanes {
  433    #[serde(default)]
  434    pub save_intent: Option<SaveIntent>,
  435    #[serde(default)]
  436    pub close_pinned: bool,
  437}
  438
  439/// Sends a sequence of keystrokes to the active element.
  440#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  441#[action(namespace = workspace)]
  442pub struct SendKeystrokes(pub String);
  443
  444actions!(
  445    project_symbols,
  446    [
  447        /// Toggles the project symbols search.
  448        #[action(name = "Toggle")]
  449        ToggleProjectSymbols
  450    ]
  451);
  452
  453/// Toggles the file finder interface.
  454#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  455#[action(namespace = file_finder, name = "Toggle")]
  456#[serde(deny_unknown_fields)]
  457pub struct ToggleFileFinder {
  458    #[serde(default)]
  459    pub separate_history: bool,
  460}
  461
  462/// Opens a new terminal in the center.
  463#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  464#[action(namespace = workspace)]
  465#[serde(deny_unknown_fields)]
  466pub struct NewCenterTerminal {
  467    /// If true, creates a local terminal even in remote projects.
  468    #[serde(default)]
  469    pub local: bool,
  470}
  471
  472/// Opens a new terminal.
  473#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  474#[action(namespace = workspace)]
  475#[serde(deny_unknown_fields)]
  476pub struct NewTerminal {
  477    /// If true, creates a local terminal even in remote projects.
  478    #[serde(default)]
  479    pub local: bool,
  480}
  481
  482/// Increases size of a currently focused dock by a given amount of pixels.
  483#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  484#[action(namespace = workspace)]
  485#[serde(deny_unknown_fields)]
  486pub struct IncreaseActiveDockSize {
  487    /// For 0px parameter, uses UI font size value.
  488    #[serde(default)]
  489    pub px: u32,
  490}
  491
  492/// Decreases size of a currently focused dock by a given amount of pixels.
  493#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  494#[action(namespace = workspace)]
  495#[serde(deny_unknown_fields)]
  496pub struct DecreaseActiveDockSize {
  497    /// For 0px parameter, uses UI font size value.
  498    #[serde(default)]
  499    pub px: u32,
  500}
  501
  502/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  503#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  504#[action(namespace = workspace)]
  505#[serde(deny_unknown_fields)]
  506pub struct IncreaseOpenDocksSize {
  507    /// For 0px parameter, uses UI font size value.
  508    #[serde(default)]
  509    pub px: u32,
  510}
  511
  512/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  513#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  514#[action(namespace = workspace)]
  515#[serde(deny_unknown_fields)]
  516pub struct DecreaseOpenDocksSize {
  517    /// For 0px parameter, uses UI font size value.
  518    #[serde(default)]
  519    pub px: u32,
  520}
  521
  522actions!(
  523    workspace,
  524    [
  525        /// Activates the pane to the left.
  526        ActivatePaneLeft,
  527        /// Activates the pane to the right.
  528        ActivatePaneRight,
  529        /// Activates the pane above.
  530        ActivatePaneUp,
  531        /// Activates the pane below.
  532        ActivatePaneDown,
  533        /// Swaps the current pane with the one to the left.
  534        SwapPaneLeft,
  535        /// Swaps the current pane with the one to the right.
  536        SwapPaneRight,
  537        /// Swaps the current pane with the one above.
  538        SwapPaneUp,
  539        /// Swaps the current pane with the one below.
  540        SwapPaneDown,
  541        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  542        SwapPaneAdjacent,
  543        /// Move the current pane to be at the far left.
  544        MovePaneLeft,
  545        /// Move the current pane to be at the far right.
  546        MovePaneRight,
  547        /// Move the current pane to be at the very top.
  548        MovePaneUp,
  549        /// Move the current pane to be at the very bottom.
  550        MovePaneDown,
  551    ]
  552);
  553
  554#[derive(PartialEq, Eq, Debug)]
  555pub enum CloseIntent {
  556    /// Quit the program entirely.
  557    Quit,
  558    /// Close a window.
  559    CloseWindow,
  560    /// Replace the workspace in an existing window.
  561    ReplaceWindow,
  562}
  563
  564#[derive(Clone)]
  565pub struct Toast {
  566    id: NotificationId,
  567    msg: Cow<'static, str>,
  568    autohide: bool,
  569    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  570}
  571
  572impl Toast {
  573    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  574        Toast {
  575            id,
  576            msg: msg.into(),
  577            on_click: None,
  578            autohide: false,
  579        }
  580    }
  581
  582    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  583    where
  584        M: Into<Cow<'static, str>>,
  585        F: Fn(&mut Window, &mut App) + 'static,
  586    {
  587        self.on_click = Some((message.into(), Arc::new(on_click)));
  588        self
  589    }
  590
  591    pub fn autohide(mut self) -> Self {
  592        self.autohide = true;
  593        self
  594    }
  595}
  596
  597impl PartialEq for Toast {
  598    fn eq(&self, other: &Self) -> bool {
  599        self.id == other.id
  600            && self.msg == other.msg
  601            && self.on_click.is_some() == other.on_click.is_some()
  602    }
  603}
  604
  605/// Opens a new terminal with the specified working directory.
  606#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  607#[action(namespace = workspace)]
  608#[serde(deny_unknown_fields)]
  609pub struct OpenTerminal {
  610    pub working_directory: PathBuf,
  611    /// If true, creates a local terminal even in remote projects.
  612    #[serde(default)]
  613    pub local: bool,
  614}
  615
  616#[derive(
  617    Clone,
  618    Copy,
  619    Debug,
  620    Default,
  621    Hash,
  622    PartialEq,
  623    Eq,
  624    PartialOrd,
  625    Ord,
  626    serde::Serialize,
  627    serde::Deserialize,
  628)]
  629pub struct WorkspaceId(i64);
  630
  631impl WorkspaceId {
  632    pub fn from_i64(value: i64) -> Self {
  633        Self(value)
  634    }
  635}
  636
  637impl StaticColumnCount for WorkspaceId {}
  638impl Bind for WorkspaceId {
  639    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  640        self.0.bind(statement, start_index)
  641    }
  642}
  643impl Column for WorkspaceId {
  644    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  645        i64::column(statement, start_index)
  646            .map(|(i, next_index)| (Self(i), next_index))
  647            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  648    }
  649}
  650impl From<WorkspaceId> for i64 {
  651    fn from(val: WorkspaceId) -> Self {
  652        val.0
  653    }
  654}
  655
  656fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  657    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  658        workspace_window
  659            .update(cx, |multi_workspace, window, cx| {
  660                let workspace = multi_workspace.workspace().clone();
  661                workspace.update(cx, |workspace, cx| {
  662                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  663                });
  664            })
  665            .ok();
  666    } else {
  667        let task = Workspace::new_local(Vec::new(), app_state.clone(), None, None, None, true, cx);
  668        cx.spawn(async move |cx| {
  669            let OpenResult { window, .. } = task.await?;
  670            window.update(cx, |multi_workspace, window, cx| {
  671                window.activate_window();
  672                let workspace = multi_workspace.workspace().clone();
  673                workspace.update(cx, |workspace, cx| {
  674                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  675                });
  676            })?;
  677            anyhow::Ok(())
  678        })
  679        .detach_and_log_err(cx);
  680    }
  681}
  682
  683pub fn prompt_for_open_path_and_open(
  684    workspace: &mut Workspace,
  685    app_state: Arc<AppState>,
  686    options: PathPromptOptions,
  687    create_new_window: bool,
  688    window: &mut Window,
  689    cx: &mut Context<Workspace>,
  690) {
  691    let paths = workspace.prompt_for_open_path(
  692        options,
  693        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  694        window,
  695        cx,
  696    );
  697    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  698    cx.spawn_in(window, async move |this, cx| {
  699        let Some(paths) = paths.await.log_err().flatten() else {
  700            return;
  701        };
  702        if !create_new_window {
  703            if let Some(handle) = multi_workspace_handle {
  704                if let Some(task) = handle
  705                    .update(cx, |multi_workspace, window, cx| {
  706                        multi_workspace.open_project(paths, window, cx)
  707                    })
  708                    .log_err()
  709                {
  710                    task.await.log_err();
  711                }
  712                return;
  713            }
  714        }
  715        if let Some(task) = this
  716            .update_in(cx, |this, window, cx| {
  717                this.open_workspace_for_paths(false, paths, window, cx)
  718            })
  719            .log_err()
  720        {
  721            task.await.log_err();
  722        }
  723    })
  724    .detach();
  725}
  726
  727pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  728    component::init();
  729    theme_preview::init(cx);
  730    toast_layer::init(cx);
  731    history_manager::init(app_state.fs.clone(), cx);
  732
  733    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  734        .on_action(|_: &Reload, cx| reload(cx))
  735        .on_action({
  736            let app_state = Arc::downgrade(&app_state);
  737            move |_: &Open, cx: &mut App| {
  738                if let Some(app_state) = app_state.upgrade() {
  739                    prompt_and_open_paths(
  740                        app_state,
  741                        PathPromptOptions {
  742                            files: true,
  743                            directories: true,
  744                            multiple: true,
  745                            prompt: None,
  746                        },
  747                        cx,
  748                    );
  749                }
  750            }
  751        })
  752        .on_action({
  753            let app_state = Arc::downgrade(&app_state);
  754            move |_: &OpenFiles, cx: &mut App| {
  755                let directories = cx.can_select_mixed_files_and_dirs();
  756                if let Some(app_state) = app_state.upgrade() {
  757                    prompt_and_open_paths(
  758                        app_state,
  759                        PathPromptOptions {
  760                            files: true,
  761                            directories,
  762                            multiple: true,
  763                            prompt: None,
  764                        },
  765                        cx,
  766                    );
  767                }
  768            }
  769        });
  770}
  771
  772type BuildProjectItemFn =
  773    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  774
  775type BuildProjectItemForPathFn =
  776    fn(
  777        &Entity<Project>,
  778        &ProjectPath,
  779        &mut Window,
  780        &mut App,
  781    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  782
  783#[derive(Clone, Default)]
  784struct ProjectItemRegistry {
  785    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  786    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  787}
  788
  789impl ProjectItemRegistry {
  790    fn register<T: ProjectItem>(&mut self) {
  791        self.build_project_item_fns_by_type.insert(
  792            TypeId::of::<T::Item>(),
  793            |item, project, pane, window, cx| {
  794                let item = item.downcast().unwrap();
  795                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  796                    as Box<dyn ItemHandle>
  797            },
  798        );
  799        self.build_project_item_for_path_fns
  800            .push(|project, project_path, window, cx| {
  801                let project_path = project_path.clone();
  802                let is_file = project
  803                    .read(cx)
  804                    .entry_for_path(&project_path, cx)
  805                    .is_some_and(|entry| entry.is_file());
  806                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  807                let is_local = project.read(cx).is_local();
  808                let project_item =
  809                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  810                let project = project.clone();
  811                Some(window.spawn(cx, async move |cx| {
  812                    match project_item.await.with_context(|| {
  813                        format!(
  814                            "opening project path {:?}",
  815                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  816                        )
  817                    }) {
  818                        Ok(project_item) => {
  819                            let project_item = project_item;
  820                            let project_entry_id: Option<ProjectEntryId> =
  821                                project_item.read_with(cx, project::ProjectItem::entry_id);
  822                            let build_workspace_item = Box::new(
  823                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  824                                    Box::new(cx.new(|cx| {
  825                                        T::for_project_item(
  826                                            project,
  827                                            Some(pane),
  828                                            project_item,
  829                                            window,
  830                                            cx,
  831                                        )
  832                                    })) as Box<dyn ItemHandle>
  833                                },
  834                            ) as Box<_>;
  835                            Ok((project_entry_id, build_workspace_item))
  836                        }
  837                        Err(e) => {
  838                            log::warn!("Failed to open a project item: {e:#}");
  839                            if e.error_code() == ErrorCode::Internal {
  840                                if let Some(abs_path) =
  841                                    entry_abs_path.as_deref().filter(|_| is_file)
  842                                {
  843                                    if let Some(broken_project_item_view) =
  844                                        cx.update(|window, cx| {
  845                                            T::for_broken_project_item(
  846                                                abs_path, is_local, &e, window, cx,
  847                                            )
  848                                        })?
  849                                    {
  850                                        let build_workspace_item = Box::new(
  851                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  852                                                cx.new(|_| broken_project_item_view).boxed_clone()
  853                                            },
  854                                        )
  855                                        as Box<_>;
  856                                        return Ok((None, build_workspace_item));
  857                                    }
  858                                }
  859                            }
  860                            Err(e)
  861                        }
  862                    }
  863                }))
  864            });
  865    }
  866
  867    fn open_path(
  868        &self,
  869        project: &Entity<Project>,
  870        path: &ProjectPath,
  871        window: &mut Window,
  872        cx: &mut App,
  873    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  874        let Some(open_project_item) = self
  875            .build_project_item_for_path_fns
  876            .iter()
  877            .rev()
  878            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  879        else {
  880            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  881        };
  882        open_project_item
  883    }
  884
  885    fn build_item<T: project::ProjectItem>(
  886        &self,
  887        item: Entity<T>,
  888        project: Entity<Project>,
  889        pane: Option<&Pane>,
  890        window: &mut Window,
  891        cx: &mut App,
  892    ) -> Option<Box<dyn ItemHandle>> {
  893        let build = self
  894            .build_project_item_fns_by_type
  895            .get(&TypeId::of::<T>())?;
  896        Some(build(item.into_any(), project, pane, window, cx))
  897    }
  898}
  899
  900type WorkspaceItemBuilder =
  901    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  902
  903impl Global for ProjectItemRegistry {}
  904
  905/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  906/// items will get a chance to open the file, starting from the project item that
  907/// was added last.
  908pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  909    cx.default_global::<ProjectItemRegistry>().register::<I>();
  910}
  911
  912#[derive(Default)]
  913pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  914
  915struct FollowableViewDescriptor {
  916    from_state_proto: fn(
  917        Entity<Workspace>,
  918        ViewId,
  919        &mut Option<proto::view::Variant>,
  920        &mut Window,
  921        &mut App,
  922    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  923    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  924}
  925
  926impl Global for FollowableViewRegistry {}
  927
  928impl FollowableViewRegistry {
  929    pub fn register<I: FollowableItem>(cx: &mut App) {
  930        cx.default_global::<Self>().0.insert(
  931            TypeId::of::<I>(),
  932            FollowableViewDescriptor {
  933                from_state_proto: |workspace, id, state, window, cx| {
  934                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  935                        cx.foreground_executor()
  936                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  937                    })
  938                },
  939                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  940            },
  941        );
  942    }
  943
  944    pub fn from_state_proto(
  945        workspace: Entity<Workspace>,
  946        view_id: ViewId,
  947        mut state: Option<proto::view::Variant>,
  948        window: &mut Window,
  949        cx: &mut App,
  950    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  951        cx.update_default_global(|this: &mut Self, cx| {
  952            this.0.values().find_map(|descriptor| {
  953                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  954            })
  955        })
  956    }
  957
  958    pub fn to_followable_view(
  959        view: impl Into<AnyView>,
  960        cx: &App,
  961    ) -> Option<Box<dyn FollowableItemHandle>> {
  962        let this = cx.try_global::<Self>()?;
  963        let view = view.into();
  964        let descriptor = this.0.get(&view.entity_type())?;
  965        Some((descriptor.to_followable_view)(&view))
  966    }
  967}
  968
  969#[derive(Copy, Clone)]
  970struct SerializableItemDescriptor {
  971    deserialize: fn(
  972        Entity<Project>,
  973        WeakEntity<Workspace>,
  974        WorkspaceId,
  975        ItemId,
  976        &mut Window,
  977        &mut Context<Pane>,
  978    ) -> Task<Result<Box<dyn ItemHandle>>>,
  979    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  980    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  981}
  982
  983#[derive(Default)]
  984struct SerializableItemRegistry {
  985    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  986    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  987}
  988
  989impl Global for SerializableItemRegistry {}
  990
  991impl SerializableItemRegistry {
  992    fn deserialize(
  993        item_kind: &str,
  994        project: Entity<Project>,
  995        workspace: WeakEntity<Workspace>,
  996        workspace_id: WorkspaceId,
  997        item_item: ItemId,
  998        window: &mut Window,
  999        cx: &mut Context<Pane>,
 1000    ) -> Task<Result<Box<dyn ItemHandle>>> {
 1001        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1002            return Task::ready(Err(anyhow!(
 1003                "cannot deserialize {}, descriptor not found",
 1004                item_kind
 1005            )));
 1006        };
 1007
 1008        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1009    }
 1010
 1011    fn cleanup(
 1012        item_kind: &str,
 1013        workspace_id: WorkspaceId,
 1014        loaded_items: Vec<ItemId>,
 1015        window: &mut Window,
 1016        cx: &mut App,
 1017    ) -> Task<Result<()>> {
 1018        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1019            return Task::ready(Err(anyhow!(
 1020                "cannot cleanup {}, descriptor not found",
 1021                item_kind
 1022            )));
 1023        };
 1024
 1025        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1026    }
 1027
 1028    fn view_to_serializable_item_handle(
 1029        view: AnyView,
 1030        cx: &App,
 1031    ) -> Option<Box<dyn SerializableItemHandle>> {
 1032        let this = cx.try_global::<Self>()?;
 1033        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1034        Some((descriptor.view_to_serializable_item)(view))
 1035    }
 1036
 1037    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1038        let this = cx.try_global::<Self>()?;
 1039        this.descriptors_by_kind.get(item_kind).copied()
 1040    }
 1041}
 1042
 1043pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1044    let serialized_item_kind = I::serialized_item_kind();
 1045
 1046    let registry = cx.default_global::<SerializableItemRegistry>();
 1047    let descriptor = SerializableItemDescriptor {
 1048        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1049            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1050            cx.foreground_executor()
 1051                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1052        },
 1053        cleanup: |workspace_id, loaded_items, window, cx| {
 1054            I::cleanup(workspace_id, loaded_items, window, cx)
 1055        },
 1056        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1057    };
 1058    registry
 1059        .descriptors_by_kind
 1060        .insert(Arc::from(serialized_item_kind), descriptor);
 1061    registry
 1062        .descriptors_by_type
 1063        .insert(TypeId::of::<I>(), descriptor);
 1064}
 1065
 1066pub struct AppState {
 1067    pub languages: Arc<LanguageRegistry>,
 1068    pub client: Arc<Client>,
 1069    pub user_store: Entity<UserStore>,
 1070    pub workspace_store: Entity<WorkspaceStore>,
 1071    pub fs: Arc<dyn fs::Fs>,
 1072    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1073    pub node_runtime: NodeRuntime,
 1074    pub session: Entity<AppSession>,
 1075}
 1076
 1077struct GlobalAppState(Weak<AppState>);
 1078
 1079impl Global for GlobalAppState {}
 1080
 1081pub struct WorkspaceStore {
 1082    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1083    client: Arc<Client>,
 1084    _subscriptions: Vec<client::Subscription>,
 1085}
 1086
 1087#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1088pub enum CollaboratorId {
 1089    PeerId(PeerId),
 1090    Agent,
 1091}
 1092
 1093impl From<PeerId> for CollaboratorId {
 1094    fn from(peer_id: PeerId) -> Self {
 1095        CollaboratorId::PeerId(peer_id)
 1096    }
 1097}
 1098
 1099impl From<&PeerId> for CollaboratorId {
 1100    fn from(peer_id: &PeerId) -> Self {
 1101        CollaboratorId::PeerId(*peer_id)
 1102    }
 1103}
 1104
 1105#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1106struct Follower {
 1107    project_id: Option<u64>,
 1108    peer_id: PeerId,
 1109}
 1110
 1111impl AppState {
 1112    #[track_caller]
 1113    pub fn global(cx: &App) -> Weak<Self> {
 1114        cx.global::<GlobalAppState>().0.clone()
 1115    }
 1116    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1117        cx.try_global::<GlobalAppState>()
 1118            .map(|state| state.0.clone())
 1119    }
 1120    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1121        cx.set_global(GlobalAppState(state));
 1122    }
 1123
 1124    #[cfg(any(test, feature = "test-support"))]
 1125    pub fn test(cx: &mut App) -> Arc<Self> {
 1126        use fs::Fs;
 1127        use node_runtime::NodeRuntime;
 1128        use session::Session;
 1129        use settings::SettingsStore;
 1130
 1131        if !cx.has_global::<SettingsStore>() {
 1132            let settings_store = SettingsStore::test(cx);
 1133            cx.set_global(settings_store);
 1134        }
 1135
 1136        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1137        <dyn Fs>::set_global(fs.clone(), cx);
 1138        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1139        let clock = Arc::new(clock::FakeSystemClock::new());
 1140        let http_client = http_client::FakeHttpClient::with_404_response();
 1141        let client = Client::new(clock, http_client, cx);
 1142        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1143        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1144        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1145
 1146        theme_settings::init(theme::LoadThemes::JustBase, cx);
 1147        client::init(&client, cx);
 1148
 1149        Arc::new(Self {
 1150            client,
 1151            fs,
 1152            languages,
 1153            user_store,
 1154            workspace_store,
 1155            node_runtime: NodeRuntime::unavailable(),
 1156            build_window_options: |_, _| Default::default(),
 1157            session,
 1158        })
 1159    }
 1160}
 1161
 1162struct DelayedDebouncedEditAction {
 1163    task: Option<Task<()>>,
 1164    cancel_channel: Option<oneshot::Sender<()>>,
 1165}
 1166
 1167impl DelayedDebouncedEditAction {
 1168    fn new() -> DelayedDebouncedEditAction {
 1169        DelayedDebouncedEditAction {
 1170            task: None,
 1171            cancel_channel: None,
 1172        }
 1173    }
 1174
 1175    fn fire_new<F>(
 1176        &mut self,
 1177        delay: Duration,
 1178        window: &mut Window,
 1179        cx: &mut Context<Workspace>,
 1180        func: F,
 1181    ) where
 1182        F: 'static
 1183            + Send
 1184            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1185    {
 1186        if let Some(channel) = self.cancel_channel.take() {
 1187            _ = channel.send(());
 1188        }
 1189
 1190        let (sender, mut receiver) = oneshot::channel::<()>();
 1191        self.cancel_channel = Some(sender);
 1192
 1193        let previous_task = self.task.take();
 1194        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1195            let mut timer = cx.background_executor().timer(delay).fuse();
 1196            if let Some(previous_task) = previous_task {
 1197                previous_task.await;
 1198            }
 1199
 1200            futures::select_biased! {
 1201                _ = receiver => return,
 1202                    _ = timer => {}
 1203            }
 1204
 1205            if let Some(result) = workspace
 1206                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1207                .log_err()
 1208            {
 1209                result.await.log_err();
 1210            }
 1211        }));
 1212    }
 1213}
 1214
 1215pub enum Event {
 1216    PaneAdded(Entity<Pane>),
 1217    PaneRemoved,
 1218    ItemAdded {
 1219        item: Box<dyn ItemHandle>,
 1220    },
 1221    ActiveItemChanged,
 1222    ItemRemoved {
 1223        item_id: EntityId,
 1224    },
 1225    UserSavedItem {
 1226        pane: WeakEntity<Pane>,
 1227        item: Box<dyn WeakItemHandle>,
 1228        save_intent: SaveIntent,
 1229    },
 1230    ContactRequestedJoin(u64),
 1231    WorkspaceCreated(WeakEntity<Workspace>),
 1232    OpenBundledFile {
 1233        text: Cow<'static, str>,
 1234        title: &'static str,
 1235        language: &'static str,
 1236    },
 1237    ZoomChanged,
 1238    ModalOpened,
 1239    Activate,
 1240    PanelAdded(AnyView),
 1241}
 1242
 1243#[derive(Debug, Clone)]
 1244pub enum OpenVisible {
 1245    All,
 1246    None,
 1247    OnlyFiles,
 1248    OnlyDirectories,
 1249}
 1250
 1251enum WorkspaceLocation {
 1252    // Valid local paths or SSH project to serialize
 1253    Location(SerializedWorkspaceLocation, PathList),
 1254    // No valid location found hence clear session id
 1255    DetachFromSession,
 1256    // No valid location found to serialize
 1257    None,
 1258}
 1259
 1260type PromptForNewPath = Box<
 1261    dyn Fn(
 1262        &mut Workspace,
 1263        DirectoryLister,
 1264        Option<String>,
 1265        &mut Window,
 1266        &mut Context<Workspace>,
 1267    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1268>;
 1269
 1270type PromptForOpenPath = Box<
 1271    dyn Fn(
 1272        &mut Workspace,
 1273        DirectoryLister,
 1274        &mut Window,
 1275        &mut Context<Workspace>,
 1276    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1277>;
 1278
 1279#[derive(Default)]
 1280struct DispatchingKeystrokes {
 1281    dispatched: HashSet<Vec<Keystroke>>,
 1282    queue: VecDeque<Keystroke>,
 1283    task: Option<Shared<Task<()>>>,
 1284}
 1285
 1286/// Collects everything project-related for a certain window opened.
 1287/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1288///
 1289/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1290/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1291/// that can be used to register a global action to be triggered from any place in the window.
 1292pub struct Workspace {
 1293    weak_self: WeakEntity<Self>,
 1294    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1295    zoomed: Option<AnyWeakView>,
 1296    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1297    zoomed_position: Option<DockPosition>,
 1298    center: PaneGroup,
 1299    left_dock: Entity<Dock>,
 1300    bottom_dock: Entity<Dock>,
 1301    right_dock: Entity<Dock>,
 1302    panes: Vec<Entity<Pane>>,
 1303    active_worktree_override: Option<WorktreeId>,
 1304    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1305    active_pane: Entity<Pane>,
 1306    last_active_center_pane: Option<WeakEntity<Pane>>,
 1307    last_active_view_id: Option<proto::ViewId>,
 1308    status_bar: Entity<StatusBar>,
 1309    pub(crate) modal_layer: Entity<ModalLayer>,
 1310    toast_layer: Entity<ToastLayer>,
 1311    titlebar_item: Option<AnyView>,
 1312    notifications: Notifications,
 1313    suppressed_notifications: HashSet<NotificationId>,
 1314    project: Entity<Project>,
 1315    follower_states: HashMap<CollaboratorId, FollowerState>,
 1316    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1317    window_edited: bool,
 1318    last_window_title: Option<String>,
 1319    dirty_items: HashMap<EntityId, Subscription>,
 1320    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1321    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1322    database_id: Option<WorkspaceId>,
 1323    app_state: Arc<AppState>,
 1324    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1325    _subscriptions: Vec<Subscription>,
 1326    _apply_leader_updates: Task<Result<()>>,
 1327    _observe_current_user: Task<Result<()>>,
 1328    _schedule_serialize_workspace: Option<Task<()>>,
 1329    _serialize_workspace_task: Option<Task<()>>,
 1330    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1331    pane_history_timestamp: Arc<AtomicUsize>,
 1332    bounds: Bounds<Pixels>,
 1333    pub centered_layout: bool,
 1334    bounds_save_task_queued: Option<Task<()>>,
 1335    on_prompt_for_new_path: Option<PromptForNewPath>,
 1336    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1337    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1338    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1339    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1340    _items_serializer: Task<Result<()>>,
 1341    session_id: Option<String>,
 1342    scheduled_tasks: Vec<Task<()>>,
 1343    last_open_dock_positions: Vec<DockPosition>,
 1344    removing: bool,
 1345    _panels_task: Option<Task<Result<()>>>,
 1346    sidebar_focus_handle: Option<FocusHandle>,
 1347    multi_workspace: Option<WeakEntity<MultiWorkspace>>,
 1348}
 1349
 1350impl EventEmitter<Event> for Workspace {}
 1351
 1352#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1353pub struct ViewId {
 1354    pub creator: CollaboratorId,
 1355    pub id: u64,
 1356}
 1357
 1358pub struct FollowerState {
 1359    center_pane: Entity<Pane>,
 1360    dock_pane: Option<Entity<Pane>>,
 1361    active_view_id: Option<ViewId>,
 1362    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1363}
 1364
 1365struct FollowerView {
 1366    view: Box<dyn FollowableItemHandle>,
 1367    location: Option<proto::PanelId>,
 1368}
 1369
 1370impl Workspace {
 1371    pub fn new(
 1372        workspace_id: Option<WorkspaceId>,
 1373        project: Entity<Project>,
 1374        app_state: Arc<AppState>,
 1375        window: &mut Window,
 1376        cx: &mut Context<Self>,
 1377    ) -> Self {
 1378        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1379            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1380                if let TrustedWorktreesEvent::Trusted(..) = e {
 1381                    // Do not persist auto trusted worktrees
 1382                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1383                        worktrees_store.update(cx, |worktrees_store, cx| {
 1384                            worktrees_store.schedule_serialization(
 1385                                cx,
 1386                                |new_trusted_worktrees, cx| {
 1387                                    let timeout =
 1388                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1389                                    let db = WorkspaceDb::global(cx);
 1390                                    cx.background_spawn(async move {
 1391                                        timeout.await;
 1392                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1393                                            .await
 1394                                            .log_err();
 1395                                    })
 1396                                },
 1397                            )
 1398                        });
 1399                    }
 1400                }
 1401            })
 1402            .detach();
 1403
 1404            cx.observe_global::<SettingsStore>(|_, cx| {
 1405                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1406                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1407                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1408                            trusted_worktrees.auto_trust_all(cx);
 1409                        })
 1410                    }
 1411                }
 1412            })
 1413            .detach();
 1414        }
 1415
 1416        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1417            match event {
 1418                project::Event::RemoteIdChanged(_) => {
 1419                    this.update_window_title(window, cx);
 1420                }
 1421
 1422                project::Event::CollaboratorLeft(peer_id) => {
 1423                    this.collaborator_left(*peer_id, window, cx);
 1424                }
 1425
 1426                &project::Event::WorktreeRemoved(_) => {
 1427                    this.update_window_title(window, cx);
 1428                    this.serialize_workspace(window, cx);
 1429                    this.update_history(cx);
 1430                }
 1431
 1432                &project::Event::WorktreeAdded(id) => {
 1433                    this.update_window_title(window, cx);
 1434                    if this
 1435                        .project()
 1436                        .read(cx)
 1437                        .worktree_for_id(id, cx)
 1438                        .is_some_and(|wt| wt.read(cx).is_visible())
 1439                    {
 1440                        this.serialize_workspace(window, cx);
 1441                        this.update_history(cx);
 1442                    }
 1443                }
 1444                project::Event::WorktreeUpdatedEntries(..) => {
 1445                    this.update_window_title(window, cx);
 1446                    this.serialize_workspace(window, cx);
 1447                }
 1448
 1449                project::Event::DisconnectedFromHost => {
 1450                    this.update_window_edited(window, cx);
 1451                    let leaders_to_unfollow =
 1452                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1453                    for leader_id in leaders_to_unfollow {
 1454                        this.unfollow(leader_id, window, cx);
 1455                    }
 1456                }
 1457
 1458                project::Event::DisconnectedFromRemote {
 1459                    server_not_running: _,
 1460                } => {
 1461                    this.update_window_edited(window, cx);
 1462                }
 1463
 1464                project::Event::Closed => {
 1465                    window.remove_window();
 1466                }
 1467
 1468                project::Event::DeletedEntry(_, entry_id) => {
 1469                    for pane in this.panes.iter() {
 1470                        pane.update(cx, |pane, cx| {
 1471                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1472                        });
 1473                    }
 1474                }
 1475
 1476                project::Event::Toast {
 1477                    notification_id,
 1478                    message,
 1479                    link,
 1480                } => this.show_notification(
 1481                    NotificationId::named(notification_id.clone()),
 1482                    cx,
 1483                    |cx| {
 1484                        let mut notification = MessageNotification::new(message.clone(), cx);
 1485                        if let Some(link) = link {
 1486                            notification = notification
 1487                                .more_info_message(link.label)
 1488                                .more_info_url(link.url);
 1489                        }
 1490
 1491                        cx.new(|_| notification)
 1492                    },
 1493                ),
 1494
 1495                project::Event::HideToast { notification_id } => {
 1496                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1497                }
 1498
 1499                project::Event::LanguageServerPrompt(request) => {
 1500                    struct LanguageServerPrompt;
 1501
 1502                    this.show_notification(
 1503                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1504                        cx,
 1505                        |cx| {
 1506                            cx.new(|cx| {
 1507                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1508                            })
 1509                        },
 1510                    );
 1511                }
 1512
 1513                project::Event::AgentLocationChanged => {
 1514                    this.handle_agent_location_changed(window, cx)
 1515                }
 1516
 1517                _ => {}
 1518            }
 1519            cx.notify()
 1520        })
 1521        .detach();
 1522
 1523        cx.subscribe_in(
 1524            &project.read(cx).breakpoint_store(),
 1525            window,
 1526            |workspace, _, event, window, cx| match event {
 1527                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1528                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1529                    workspace.serialize_workspace(window, cx);
 1530                }
 1531                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1532            },
 1533        )
 1534        .detach();
 1535        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1536            cx.subscribe_in(
 1537                &toolchain_store,
 1538                window,
 1539                |workspace, _, event, window, cx| match event {
 1540                    ToolchainStoreEvent::CustomToolchainsModified => {
 1541                        workspace.serialize_workspace(window, cx);
 1542                    }
 1543                    _ => {}
 1544                },
 1545            )
 1546            .detach();
 1547        }
 1548
 1549        cx.on_focus_lost(window, |this, window, cx| {
 1550            let focus_handle = this.focus_handle(cx);
 1551            window.focus(&focus_handle, cx);
 1552        })
 1553        .detach();
 1554
 1555        let weak_handle = cx.entity().downgrade();
 1556        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1557
 1558        let center_pane = cx.new(|cx| {
 1559            let mut center_pane = Pane::new(
 1560                weak_handle.clone(),
 1561                project.clone(),
 1562                pane_history_timestamp.clone(),
 1563                None,
 1564                NewFile.boxed_clone(),
 1565                true,
 1566                window,
 1567                cx,
 1568            );
 1569            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1570            center_pane.set_should_display_welcome_page(true);
 1571            center_pane
 1572        });
 1573        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1574            .detach();
 1575
 1576        window.focus(&center_pane.focus_handle(cx), cx);
 1577
 1578        cx.emit(Event::PaneAdded(center_pane.clone()));
 1579
 1580        let any_window_handle = window.window_handle();
 1581        app_state.workspace_store.update(cx, |store, _| {
 1582            store
 1583                .workspaces
 1584                .insert((any_window_handle, weak_handle.clone()));
 1585        });
 1586
 1587        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1588        let mut connection_status = app_state.client.status();
 1589        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1590            current_user.next().await;
 1591            connection_status.next().await;
 1592            let mut stream =
 1593                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1594
 1595            while stream.recv().await.is_some() {
 1596                this.update(cx, |_, cx| cx.notify())?;
 1597            }
 1598            anyhow::Ok(())
 1599        });
 1600
 1601        // All leader updates are enqueued and then processed in a single task, so
 1602        // that each asynchronous operation can be run in order.
 1603        let (leader_updates_tx, mut leader_updates_rx) =
 1604            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1605        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1606            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1607                Self::process_leader_update(&this, leader_id, update, cx)
 1608                    .await
 1609                    .log_err();
 1610            }
 1611
 1612            Ok(())
 1613        });
 1614
 1615        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1616        let modal_layer = cx.new(|_| ModalLayer::new());
 1617        let toast_layer = cx.new(|_| ToastLayer::new());
 1618        cx.subscribe(
 1619            &modal_layer,
 1620            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1621                cx.emit(Event::ModalOpened);
 1622            },
 1623        )
 1624        .detach();
 1625
 1626        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1627        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1628        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1629        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1630        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1631        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1632        let multi_workspace = window
 1633            .root::<MultiWorkspace>()
 1634            .flatten()
 1635            .map(|mw| mw.downgrade());
 1636        let status_bar = cx.new(|cx| {
 1637            let mut status_bar =
 1638                StatusBar::new(&center_pane.clone(), multi_workspace.clone(), window, cx);
 1639            status_bar.add_left_item(left_dock_buttons, window, cx);
 1640            status_bar.add_right_item(right_dock_buttons, window, cx);
 1641            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1642            status_bar
 1643        });
 1644
 1645        let session_id = app_state.session.read(cx).id().to_owned();
 1646
 1647        let mut active_call = None;
 1648        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1649            let subscriptions =
 1650                vec![
 1651                    call.0
 1652                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1653                ];
 1654            active_call = Some((call, subscriptions));
 1655        }
 1656
 1657        let (serializable_items_tx, serializable_items_rx) =
 1658            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1659        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1660            Self::serialize_items(&this, serializable_items_rx, cx).await
 1661        });
 1662
 1663        let subscriptions = vec![
 1664            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1665            cx.observe_window_bounds(window, move |this, window, cx| {
 1666                if this.bounds_save_task_queued.is_some() {
 1667                    return;
 1668                }
 1669                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1670                    cx.background_executor()
 1671                        .timer(Duration::from_millis(100))
 1672                        .await;
 1673                    this.update_in(cx, |this, window, cx| {
 1674                        this.save_window_bounds(window, cx).detach();
 1675                        this.bounds_save_task_queued.take();
 1676                    })
 1677                    .ok();
 1678                }));
 1679                cx.notify();
 1680            }),
 1681            cx.observe_window_appearance(window, |_, window, cx| {
 1682                let window_appearance = window.appearance();
 1683
 1684                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1685
 1686                theme_settings::reload_theme(cx);
 1687                theme_settings::reload_icon_theme(cx);
 1688            }),
 1689            cx.on_release({
 1690                let weak_handle = weak_handle.clone();
 1691                move |this, cx| {
 1692                    this.app_state.workspace_store.update(cx, move |store, _| {
 1693                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1694                    })
 1695                }
 1696            }),
 1697        ];
 1698
 1699        cx.defer_in(window, move |this, window, cx| {
 1700            this.update_window_title(window, cx);
 1701            this.show_initial_notifications(cx);
 1702        });
 1703
 1704        let mut center = PaneGroup::new(center_pane.clone());
 1705        center.set_is_center(true);
 1706        center.mark_positions(cx);
 1707
 1708        Workspace {
 1709            weak_self: weak_handle.clone(),
 1710            zoomed: None,
 1711            zoomed_position: None,
 1712            previous_dock_drag_coordinates: None,
 1713            center,
 1714            panes: vec![center_pane.clone()],
 1715            panes_by_item: Default::default(),
 1716            active_pane: center_pane.clone(),
 1717            last_active_center_pane: Some(center_pane.downgrade()),
 1718            last_active_view_id: None,
 1719            status_bar,
 1720            modal_layer,
 1721            toast_layer,
 1722            titlebar_item: None,
 1723            active_worktree_override: None,
 1724            notifications: Notifications::default(),
 1725            suppressed_notifications: HashSet::default(),
 1726            left_dock,
 1727            bottom_dock,
 1728            right_dock,
 1729            _panels_task: None,
 1730            project: project.clone(),
 1731            follower_states: Default::default(),
 1732            last_leaders_by_pane: Default::default(),
 1733            dispatching_keystrokes: Default::default(),
 1734            window_edited: false,
 1735            last_window_title: None,
 1736            dirty_items: Default::default(),
 1737            active_call,
 1738            database_id: workspace_id,
 1739            app_state,
 1740            _observe_current_user,
 1741            _apply_leader_updates,
 1742            _schedule_serialize_workspace: None,
 1743            _serialize_workspace_task: None,
 1744            _schedule_serialize_ssh_paths: None,
 1745            leader_updates_tx,
 1746            _subscriptions: subscriptions,
 1747            pane_history_timestamp,
 1748            workspace_actions: Default::default(),
 1749            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1750            bounds: Default::default(),
 1751            centered_layout: false,
 1752            bounds_save_task_queued: None,
 1753            on_prompt_for_new_path: None,
 1754            on_prompt_for_open_path: None,
 1755            terminal_provider: None,
 1756            debugger_provider: None,
 1757            serializable_items_tx,
 1758            _items_serializer,
 1759            session_id: Some(session_id),
 1760
 1761            scheduled_tasks: Vec::new(),
 1762            last_open_dock_positions: Vec::new(),
 1763            removing: false,
 1764            sidebar_focus_handle: None,
 1765            multi_workspace,
 1766        }
 1767    }
 1768
 1769    pub fn new_local(
 1770        abs_paths: Vec<PathBuf>,
 1771        app_state: Arc<AppState>,
 1772        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1773        env: Option<HashMap<String, String>>,
 1774        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1775        activate: bool,
 1776        cx: &mut App,
 1777    ) -> Task<anyhow::Result<OpenResult>> {
 1778        let project_handle = Project::local(
 1779            app_state.client.clone(),
 1780            app_state.node_runtime.clone(),
 1781            app_state.user_store.clone(),
 1782            app_state.languages.clone(),
 1783            app_state.fs.clone(),
 1784            env,
 1785            Default::default(),
 1786            cx,
 1787        );
 1788
 1789        let db = WorkspaceDb::global(cx);
 1790        let kvp = db::kvp::KeyValueStore::global(cx);
 1791        cx.spawn(async move |cx| {
 1792            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1793            for path in abs_paths.into_iter() {
 1794                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1795                    paths_to_open.push(canonical)
 1796                } else {
 1797                    paths_to_open.push(path)
 1798                }
 1799            }
 1800
 1801            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1802
 1803            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1804                paths_to_open = paths.ordered_paths().cloned().collect();
 1805                if !paths.is_lexicographically_ordered() {
 1806                    project_handle.update(cx, |project, cx| {
 1807                        project.set_worktrees_reordered(true, cx);
 1808                    });
 1809                }
 1810            }
 1811
 1812            // Get project paths for all of the abs_paths
 1813            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1814                Vec::with_capacity(paths_to_open.len());
 1815
 1816            for path in paths_to_open.into_iter() {
 1817                if let Some((_, project_entry)) = cx
 1818                    .update(|cx| {
 1819                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1820                    })
 1821                    .await
 1822                    .log_err()
 1823                {
 1824                    project_paths.push((path, Some(project_entry)));
 1825                } else {
 1826                    project_paths.push((path, None));
 1827                }
 1828            }
 1829
 1830            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1831                serialized_workspace.id
 1832            } else {
 1833                db.next_id().await.unwrap_or_else(|_| Default::default())
 1834            };
 1835
 1836            let toolchains = db.toolchains(workspace_id).await?;
 1837
 1838            for (toolchain, worktree_path, path) in toolchains {
 1839                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1840                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1841                    this.find_worktree(&worktree_path, cx)
 1842                        .and_then(|(worktree, rel_path)| {
 1843                            if rel_path.is_empty() {
 1844                                Some(worktree.read(cx).id())
 1845                            } else {
 1846                                None
 1847                            }
 1848                        })
 1849                }) else {
 1850                    // We did not find a worktree with a given path, but that's whatever.
 1851                    continue;
 1852                };
 1853                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1854                    continue;
 1855                }
 1856
 1857                project_handle
 1858                    .update(cx, |this, cx| {
 1859                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1860                    })
 1861                    .await;
 1862            }
 1863            if let Some(workspace) = serialized_workspace.as_ref() {
 1864                project_handle.update(cx, |this, cx| {
 1865                    for (scope, toolchains) in &workspace.user_toolchains {
 1866                        for toolchain in toolchains {
 1867                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1868                        }
 1869                    }
 1870                });
 1871            }
 1872
 1873            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1874                if let Some(window) = requesting_window {
 1875                    let centered_layout = serialized_workspace
 1876                        .as_ref()
 1877                        .map(|w| w.centered_layout)
 1878                        .unwrap_or(false);
 1879
 1880                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1881                        let workspace = cx.new(|cx| {
 1882                            let mut workspace = Workspace::new(
 1883                                Some(workspace_id),
 1884                                project_handle.clone(),
 1885                                app_state.clone(),
 1886                                window,
 1887                                cx,
 1888                            );
 1889
 1890                            workspace.centered_layout = centered_layout;
 1891
 1892                            // Call init callback to add items before window renders
 1893                            if let Some(init) = init {
 1894                                init(&mut workspace, window, cx);
 1895                            }
 1896
 1897                            workspace
 1898                        });
 1899                        if activate {
 1900                            multi_workspace.activate(workspace.clone(), cx);
 1901                        } else {
 1902                            multi_workspace.add_workspace(workspace.clone(), cx);
 1903                        }
 1904                        workspace
 1905                    })?;
 1906                    (window, workspace)
 1907                } else {
 1908                    let window_bounds_override = window_bounds_env_override();
 1909
 1910                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1911                        (Some(WindowBounds::Windowed(bounds)), None)
 1912                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1913                        && let Some(display) = workspace.display
 1914                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1915                    {
 1916                        // Reopening an existing workspace - restore its saved bounds
 1917                        (Some(bounds.0), Some(display))
 1918                    } else if let Some((display, bounds)) =
 1919                        persistence::read_default_window_bounds(&kvp)
 1920                    {
 1921                        // New or empty workspace - use the last known window bounds
 1922                        (Some(bounds), Some(display))
 1923                    } else {
 1924                        // New window - let GPUI's default_bounds() handle cascading
 1925                        (None, None)
 1926                    };
 1927
 1928                    // Use the serialized workspace to construct the new window
 1929                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1930                    options.window_bounds = window_bounds;
 1931                    let centered_layout = serialized_workspace
 1932                        .as_ref()
 1933                        .map(|w| w.centered_layout)
 1934                        .unwrap_or(false);
 1935                    let window = cx.open_window(options, {
 1936                        let app_state = app_state.clone();
 1937                        let project_handle = project_handle.clone();
 1938                        move |window, cx| {
 1939                            let workspace = cx.new(|cx| {
 1940                                let mut workspace = Workspace::new(
 1941                                    Some(workspace_id),
 1942                                    project_handle,
 1943                                    app_state,
 1944                                    window,
 1945                                    cx,
 1946                                );
 1947                                workspace.centered_layout = centered_layout;
 1948
 1949                                // Call init callback to add items before window renders
 1950                                if let Some(init) = init {
 1951                                    init(&mut workspace, window, cx);
 1952                                }
 1953
 1954                                workspace
 1955                            });
 1956                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 1957                        }
 1958                    })?;
 1959                    let workspace =
 1960                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1961                            multi_workspace.workspace().clone()
 1962                        })?;
 1963                    (window, workspace)
 1964                };
 1965
 1966            notify_if_database_failed(window, cx);
 1967            // Check if this is an empty workspace (no paths to open)
 1968            // An empty workspace is one where project_paths is empty
 1969            let is_empty_workspace = project_paths.is_empty();
 1970            // Check if serialized workspace has paths before it's moved
 1971            let serialized_workspace_has_paths = serialized_workspace
 1972                .as_ref()
 1973                .map(|ws| !ws.paths.is_empty())
 1974                .unwrap_or(false);
 1975
 1976            let opened_items = window
 1977                .update(cx, |_, window, cx| {
 1978                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1979                        open_items(serialized_workspace, project_paths, window, cx)
 1980                    })
 1981                })?
 1982                .await
 1983                .unwrap_or_default();
 1984
 1985            // Restore default dock state for empty workspaces
 1986            // Only restore if:
 1987            // 1. This is an empty workspace (no paths), AND
 1988            // 2. The serialized workspace either doesn't exist or has no paths
 1989            if is_empty_workspace && !serialized_workspace_has_paths {
 1990                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 1991                    window
 1992                        .update(cx, |_, window, cx| {
 1993                            workspace.update(cx, |workspace, cx| {
 1994                                for (dock, serialized_dock) in [
 1995                                    (&workspace.right_dock, &default_docks.right),
 1996                                    (&workspace.left_dock, &default_docks.left),
 1997                                    (&workspace.bottom_dock, &default_docks.bottom),
 1998                                ] {
 1999                                    dock.update(cx, |dock, cx| {
 2000                                        dock.serialized_dock = Some(serialized_dock.clone());
 2001                                        dock.restore_state(window, cx);
 2002                                    });
 2003                                }
 2004                                cx.notify();
 2005                            });
 2006                        })
 2007                        .log_err();
 2008                }
 2009            }
 2010
 2011            window
 2012                .update(cx, |_, _window, cx| {
 2013                    workspace.update(cx, |this: &mut Workspace, cx| {
 2014                        this.update_history(cx);
 2015                    });
 2016                })
 2017                .log_err();
 2018            Ok(OpenResult {
 2019                window,
 2020                workspace,
 2021                opened_items,
 2022            })
 2023        })
 2024    }
 2025
 2026    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2027        self.weak_self.clone()
 2028    }
 2029
 2030    pub fn left_dock(&self) -> &Entity<Dock> {
 2031        &self.left_dock
 2032    }
 2033
 2034    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2035        &self.bottom_dock
 2036    }
 2037
 2038    pub fn set_bottom_dock_layout(
 2039        &mut self,
 2040        layout: BottomDockLayout,
 2041        window: &mut Window,
 2042        cx: &mut Context<Self>,
 2043    ) {
 2044        let fs = self.project().read(cx).fs();
 2045        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2046            content.workspace.bottom_dock_layout = Some(layout);
 2047        });
 2048
 2049        cx.notify();
 2050        self.serialize_workspace(window, cx);
 2051    }
 2052
 2053    pub fn right_dock(&self) -> &Entity<Dock> {
 2054        &self.right_dock
 2055    }
 2056
 2057    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2058        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2059    }
 2060
 2061    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2062        let left_dock = self.left_dock.read(cx);
 2063        let left_visible = left_dock.is_open();
 2064        let left_active_panel = left_dock
 2065            .active_panel()
 2066            .map(|panel| panel.persistent_name().to_string());
 2067        // `zoomed_position` is kept in sync with individual panel zoom state
 2068        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2069        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2070
 2071        let right_dock = self.right_dock.read(cx);
 2072        let right_visible = right_dock.is_open();
 2073        let right_active_panel = right_dock
 2074            .active_panel()
 2075            .map(|panel| panel.persistent_name().to_string());
 2076        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2077
 2078        let bottom_dock = self.bottom_dock.read(cx);
 2079        let bottom_visible = bottom_dock.is_open();
 2080        let bottom_active_panel = bottom_dock
 2081            .active_panel()
 2082            .map(|panel| panel.persistent_name().to_string());
 2083        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2084
 2085        DockStructure {
 2086            left: DockData {
 2087                visible: left_visible,
 2088                active_panel: left_active_panel,
 2089                zoom: left_dock_zoom,
 2090            },
 2091            right: DockData {
 2092                visible: right_visible,
 2093                active_panel: right_active_panel,
 2094                zoom: right_dock_zoom,
 2095            },
 2096            bottom: DockData {
 2097                visible: bottom_visible,
 2098                active_panel: bottom_active_panel,
 2099                zoom: bottom_dock_zoom,
 2100            },
 2101        }
 2102    }
 2103
 2104    pub fn set_dock_structure(
 2105        &self,
 2106        docks: DockStructure,
 2107        window: &mut Window,
 2108        cx: &mut Context<Self>,
 2109    ) {
 2110        for (dock, data) in [
 2111            (&self.left_dock, docks.left),
 2112            (&self.bottom_dock, docks.bottom),
 2113            (&self.right_dock, docks.right),
 2114        ] {
 2115            dock.update(cx, |dock, cx| {
 2116                dock.serialized_dock = Some(data);
 2117                dock.restore_state(window, cx);
 2118            });
 2119        }
 2120    }
 2121
 2122    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2123        self.items(cx)
 2124            .filter_map(|item| {
 2125                let project_path = item.project_path(cx)?;
 2126                self.project.read(cx).absolute_path(&project_path, cx)
 2127            })
 2128            .collect()
 2129    }
 2130
 2131    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2132        match position {
 2133            DockPosition::Left => &self.left_dock,
 2134            DockPosition::Bottom => &self.bottom_dock,
 2135            DockPosition::Right => &self.right_dock,
 2136        }
 2137    }
 2138
 2139    pub fn agent_panel_position(&self, cx: &App) -> Option<DockPosition> {
 2140        self.all_docks().into_iter().find_map(|dock| {
 2141            let dock = dock.read(cx);
 2142            dock.has_agent_panel(cx).then_some(dock.position())
 2143        })
 2144    }
 2145
 2146    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2147        self.all_docks().into_iter().find_map(|dock| {
 2148            let dock = dock.read(cx);
 2149            let panel = dock.panel::<T>()?;
 2150            dock.stored_panel_size_state(&panel)
 2151        })
 2152    }
 2153
 2154    pub fn persisted_panel_size_state(
 2155        &self,
 2156        panel_key: &'static str,
 2157        cx: &App,
 2158    ) -> Option<dock::PanelSizeState> {
 2159        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2160    }
 2161
 2162    pub fn persist_panel_size_state(
 2163        &self,
 2164        panel_key: &str,
 2165        size_state: dock::PanelSizeState,
 2166        cx: &mut App,
 2167    ) {
 2168        let Some(workspace_id) = self
 2169            .database_id()
 2170            .map(|id| i64::from(id).to_string())
 2171            .or(self.session_id())
 2172        else {
 2173            return;
 2174        };
 2175
 2176        let kvp = db::kvp::KeyValueStore::global(cx);
 2177        let panel_key = panel_key.to_string();
 2178        cx.background_spawn(async move {
 2179            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2180            scope
 2181                .write(
 2182                    format!("{workspace_id}:{panel_key}"),
 2183                    serde_json::to_string(&size_state)?,
 2184                )
 2185                .await
 2186        })
 2187        .detach_and_log_err(cx);
 2188    }
 2189
 2190    pub fn set_panel_size_state<T: Panel>(
 2191        &mut self,
 2192        size_state: dock::PanelSizeState,
 2193        window: &mut Window,
 2194        cx: &mut Context<Self>,
 2195    ) -> bool {
 2196        let Some(panel) = self.panel::<T>(cx) else {
 2197            return false;
 2198        };
 2199
 2200        let dock = self.dock_at_position(panel.position(window, cx));
 2201        let did_set = dock.update(cx, |dock, cx| {
 2202            dock.set_panel_size_state(&panel, size_state, cx)
 2203        });
 2204
 2205        if did_set {
 2206            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2207        }
 2208
 2209        did_set
 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        if position.axis() == Axis::Horizontal
 2220            && panel.supports_flexible_size(window, cx)
 2221            && let Some(ratio) = size_state
 2222                .flexible_size_ratio
 2223                .or_else(|| self.default_flexible_dock_ratio(position))
 2224            && let Some(available_width) =
 2225                self.available_width_for_horizontal_dock(position, window, cx)
 2226        {
 2227            return Some((available_width * ratio.clamp(0.0, 1.0)).max(RESIZE_HANDLE_SIZE));
 2228        }
 2229
 2230        Some(
 2231            size_state
 2232                .size
 2233                .unwrap_or_else(|| panel.default_size(window, cx)),
 2234        )
 2235    }
 2236
 2237    pub fn flexible_dock_ratio_for_size(
 2238        &self,
 2239        position: DockPosition,
 2240        size: Pixels,
 2241        window: &Window,
 2242        cx: &App,
 2243    ) -> Option<f32> {
 2244        if position.axis() != Axis::Horizontal {
 2245            return None;
 2246        }
 2247
 2248        let available_width = self.available_width_for_horizontal_dock(position, window, cx)?;
 2249        let available_width = available_width.max(RESIZE_HANDLE_SIZE);
 2250        Some((size / available_width).clamp(0.0, 1.0))
 2251    }
 2252
 2253    fn available_width_for_horizontal_dock(
 2254        &self,
 2255        position: DockPosition,
 2256        window: &Window,
 2257        cx: &App,
 2258    ) -> Option<Pixels> {
 2259        let workspace_width = self.bounds.size.width;
 2260        if workspace_width <= Pixels::ZERO {
 2261            return None;
 2262        }
 2263
 2264        let opposite_position = match position {
 2265            DockPosition::Left => DockPosition::Right,
 2266            DockPosition::Right => DockPosition::Left,
 2267            DockPosition::Bottom => return None,
 2268        };
 2269
 2270        let opposite_width = self
 2271            .dock_at_position(opposite_position)
 2272            .read(cx)
 2273            .stored_active_panel_size(window, cx)
 2274            .unwrap_or(Pixels::ZERO);
 2275
 2276        Some((workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE))
 2277    }
 2278
 2279    pub fn default_flexible_dock_ratio(&self, position: DockPosition) -> Option<f32> {
 2280        if position.axis() != Axis::Horizontal {
 2281            return None;
 2282        }
 2283
 2284        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2285        let pane_fraction = self.center.width_fraction_for_pane(&pane).unwrap_or(1.0);
 2286        Some((pane_fraction / (1.0 + pane_fraction)).clamp(0.0, 1.0))
 2287    }
 2288
 2289    pub fn is_edited(&self) -> bool {
 2290        self.window_edited
 2291    }
 2292
 2293    pub fn add_panel<T: Panel>(
 2294        &mut self,
 2295        panel: Entity<T>,
 2296        window: &mut Window,
 2297        cx: &mut Context<Self>,
 2298    ) {
 2299        let focus_handle = panel.panel_focus_handle(cx);
 2300        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2301            .detach();
 2302
 2303        let dock_position = panel.position(window, cx);
 2304        let dock = self.dock_at_position(dock_position);
 2305        let any_panel = panel.to_any();
 2306        let persisted_size_state =
 2307            self.persisted_panel_size_state(T::panel_key(), cx)
 2308                .or_else(|| {
 2309                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2310                        let state = dock::PanelSizeState {
 2311                            size: Some(size),
 2312                            flexible_size_ratio: None,
 2313                        };
 2314                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2315                        state
 2316                    })
 2317                });
 2318
 2319        dock.update(cx, |dock, cx| {
 2320            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2321            if let Some(size_state) = persisted_size_state {
 2322                dock.set_panel_size_state(&panel, size_state, cx);
 2323            }
 2324            index
 2325        });
 2326
 2327        cx.emit(Event::PanelAdded(any_panel));
 2328    }
 2329
 2330    pub fn remove_panel<T: Panel>(
 2331        &mut self,
 2332        panel: &Entity<T>,
 2333        window: &mut Window,
 2334        cx: &mut Context<Self>,
 2335    ) {
 2336        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2337            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2338        }
 2339    }
 2340
 2341    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2342        &self.status_bar
 2343    }
 2344
 2345    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2346        self.sidebar_focus_handle = handle;
 2347    }
 2348
 2349    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2350        StatusBarSettings::get_global(cx).show
 2351    }
 2352
 2353    pub fn multi_workspace(&self) -> Option<&WeakEntity<MultiWorkspace>> {
 2354        self.multi_workspace.as_ref()
 2355    }
 2356
 2357    pub fn set_multi_workspace(
 2358        &mut self,
 2359        multi_workspace: WeakEntity<MultiWorkspace>,
 2360        cx: &mut App,
 2361    ) {
 2362        self.status_bar.update(cx, |status_bar, cx| {
 2363            status_bar.set_multi_workspace(multi_workspace.clone(), cx);
 2364        });
 2365        self.multi_workspace = Some(multi_workspace);
 2366    }
 2367
 2368    pub fn app_state(&self) -> &Arc<AppState> {
 2369        &self.app_state
 2370    }
 2371
 2372    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2373        self._panels_task = Some(task);
 2374    }
 2375
 2376    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2377        self._panels_task.take()
 2378    }
 2379
 2380    pub fn user_store(&self) -> &Entity<UserStore> {
 2381        &self.app_state.user_store
 2382    }
 2383
 2384    pub fn project(&self) -> &Entity<Project> {
 2385        &self.project
 2386    }
 2387
 2388    pub fn path_style(&self, cx: &App) -> PathStyle {
 2389        self.project.read(cx).path_style(cx)
 2390    }
 2391
 2392    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2393        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2394
 2395        for pane_handle in &self.panes {
 2396            let pane = pane_handle.read(cx);
 2397
 2398            for entry in pane.activation_history() {
 2399                history.insert(
 2400                    entry.entity_id,
 2401                    history
 2402                        .get(&entry.entity_id)
 2403                        .cloned()
 2404                        .unwrap_or(0)
 2405                        .max(entry.timestamp),
 2406                );
 2407            }
 2408        }
 2409
 2410        history
 2411    }
 2412
 2413    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2414        let mut recent_item: Option<Entity<T>> = None;
 2415        let mut recent_timestamp = 0;
 2416        for pane_handle in &self.panes {
 2417            let pane = pane_handle.read(cx);
 2418            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2419                pane.items().map(|item| (item.item_id(), item)).collect();
 2420            for entry in pane.activation_history() {
 2421                if entry.timestamp > recent_timestamp
 2422                    && let Some(&item) = item_map.get(&entry.entity_id)
 2423                    && let Some(typed_item) = item.act_as::<T>(cx)
 2424                {
 2425                    recent_timestamp = entry.timestamp;
 2426                    recent_item = Some(typed_item);
 2427                }
 2428            }
 2429        }
 2430        recent_item
 2431    }
 2432
 2433    pub fn recent_navigation_history_iter(
 2434        &self,
 2435        cx: &App,
 2436    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2437        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2438        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2439
 2440        for pane in &self.panes {
 2441            let pane = pane.read(cx);
 2442
 2443            pane.nav_history()
 2444                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2445                    if let Some(fs_path) = &fs_path {
 2446                        abs_paths_opened
 2447                            .entry(fs_path.clone())
 2448                            .or_default()
 2449                            .insert(project_path.clone());
 2450                    }
 2451                    let timestamp = entry.timestamp;
 2452                    match history.entry(project_path) {
 2453                        hash_map::Entry::Occupied(mut entry) => {
 2454                            let (_, old_timestamp) = entry.get();
 2455                            if &timestamp > old_timestamp {
 2456                                entry.insert((fs_path, timestamp));
 2457                            }
 2458                        }
 2459                        hash_map::Entry::Vacant(entry) => {
 2460                            entry.insert((fs_path, timestamp));
 2461                        }
 2462                    }
 2463                });
 2464
 2465            if let Some(item) = pane.active_item()
 2466                && let Some(project_path) = item.project_path(cx)
 2467            {
 2468                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2469
 2470                if let Some(fs_path) = &fs_path {
 2471                    abs_paths_opened
 2472                        .entry(fs_path.clone())
 2473                        .or_default()
 2474                        .insert(project_path.clone());
 2475                }
 2476
 2477                history.insert(project_path, (fs_path, std::usize::MAX));
 2478            }
 2479        }
 2480
 2481        history
 2482            .into_iter()
 2483            .sorted_by_key(|(_, (_, order))| *order)
 2484            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2485            .rev()
 2486            .filter(move |(history_path, abs_path)| {
 2487                let latest_project_path_opened = abs_path
 2488                    .as_ref()
 2489                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2490                    .and_then(|project_paths| {
 2491                        project_paths
 2492                            .iter()
 2493                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2494                    });
 2495
 2496                latest_project_path_opened.is_none_or(|path| path == history_path)
 2497            })
 2498    }
 2499
 2500    pub fn recent_navigation_history(
 2501        &self,
 2502        limit: Option<usize>,
 2503        cx: &App,
 2504    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2505        self.recent_navigation_history_iter(cx)
 2506            .take(limit.unwrap_or(usize::MAX))
 2507            .collect()
 2508    }
 2509
 2510    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2511        for pane in &self.panes {
 2512            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2513        }
 2514    }
 2515
 2516    fn navigate_history(
 2517        &mut self,
 2518        pane: WeakEntity<Pane>,
 2519        mode: NavigationMode,
 2520        window: &mut Window,
 2521        cx: &mut Context<Workspace>,
 2522    ) -> Task<Result<()>> {
 2523        self.navigate_history_impl(
 2524            pane,
 2525            mode,
 2526            window,
 2527            &mut |history, cx| history.pop(mode, cx),
 2528            cx,
 2529        )
 2530    }
 2531
 2532    fn navigate_tag_history(
 2533        &mut self,
 2534        pane: WeakEntity<Pane>,
 2535        mode: TagNavigationMode,
 2536        window: &mut Window,
 2537        cx: &mut Context<Workspace>,
 2538    ) -> Task<Result<()>> {
 2539        self.navigate_history_impl(
 2540            pane,
 2541            NavigationMode::Normal,
 2542            window,
 2543            &mut |history, _cx| history.pop_tag(mode),
 2544            cx,
 2545        )
 2546    }
 2547
 2548    fn navigate_history_impl(
 2549        &mut self,
 2550        pane: WeakEntity<Pane>,
 2551        mode: NavigationMode,
 2552        window: &mut Window,
 2553        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2554        cx: &mut Context<Workspace>,
 2555    ) -> Task<Result<()>> {
 2556        let to_load = if let Some(pane) = pane.upgrade() {
 2557            pane.update(cx, |pane, cx| {
 2558                window.focus(&pane.focus_handle(cx), cx);
 2559                loop {
 2560                    // Retrieve the weak item handle from the history.
 2561                    let entry = cb(pane.nav_history_mut(), cx)?;
 2562
 2563                    // If the item is still present in this pane, then activate it.
 2564                    if let Some(index) = entry
 2565                        .item
 2566                        .upgrade()
 2567                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2568                    {
 2569                        let prev_active_item_index = pane.active_item_index();
 2570                        pane.nav_history_mut().set_mode(mode);
 2571                        pane.activate_item(index, true, true, window, cx);
 2572                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2573
 2574                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2575                        if let Some(data) = entry.data {
 2576                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2577                        }
 2578
 2579                        if navigated {
 2580                            break None;
 2581                        }
 2582                    } else {
 2583                        // If the item is no longer present in this pane, then retrieve its
 2584                        // path info in order to reopen it.
 2585                        break pane
 2586                            .nav_history()
 2587                            .path_for_item(entry.item.id())
 2588                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2589                    }
 2590                }
 2591            })
 2592        } else {
 2593            None
 2594        };
 2595
 2596        if let Some((project_path, abs_path, entry)) = to_load {
 2597            // If the item was no longer present, then load it again from its previous path, first try the local path
 2598            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2599
 2600            cx.spawn_in(window, async move  |workspace, cx| {
 2601                let open_by_project_path = open_by_project_path.await;
 2602                let mut navigated = false;
 2603                match open_by_project_path
 2604                    .with_context(|| format!("Navigating to {project_path:?}"))
 2605                {
 2606                    Ok((project_entry_id, build_item)) => {
 2607                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2608                            pane.nav_history_mut().set_mode(mode);
 2609                            pane.active_item().map(|p| p.item_id())
 2610                        })?;
 2611
 2612                        pane.update_in(cx, |pane, window, cx| {
 2613                            let item = pane.open_item(
 2614                                project_entry_id,
 2615                                project_path,
 2616                                true,
 2617                                entry.is_preview,
 2618                                true,
 2619                                None,
 2620                                window, cx,
 2621                                build_item,
 2622                            );
 2623                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2624                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2625                            if let Some(data) = entry.data {
 2626                                navigated |= item.navigate(data, window, cx);
 2627                            }
 2628                        })?;
 2629                    }
 2630                    Err(open_by_project_path_e) => {
 2631                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2632                        // and its worktree is now dropped
 2633                        if let Some(abs_path) = abs_path {
 2634                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2635                                pane.nav_history_mut().set_mode(mode);
 2636                                pane.active_item().map(|p| p.item_id())
 2637                            })?;
 2638                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2639                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2640                            })?;
 2641                            match open_by_abs_path
 2642                                .await
 2643                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2644                            {
 2645                                Ok(item) => {
 2646                                    pane.update_in(cx, |pane, window, cx| {
 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_abs_path_e) => {
 2655                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2656                                }
 2657                            }
 2658                        }
 2659                    }
 2660                }
 2661
 2662                if !navigated {
 2663                    workspace
 2664                        .update_in(cx, |workspace, window, cx| {
 2665                            Self::navigate_history(workspace, pane, mode, window, cx)
 2666                        })?
 2667                        .await?;
 2668                }
 2669
 2670                Ok(())
 2671            })
 2672        } else {
 2673            Task::ready(Ok(()))
 2674        }
 2675    }
 2676
 2677    pub fn go_back(
 2678        &mut self,
 2679        pane: WeakEntity<Pane>,
 2680        window: &mut Window,
 2681        cx: &mut Context<Workspace>,
 2682    ) -> Task<Result<()>> {
 2683        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2684    }
 2685
 2686    pub fn go_forward(
 2687        &mut self,
 2688        pane: WeakEntity<Pane>,
 2689        window: &mut Window,
 2690        cx: &mut Context<Workspace>,
 2691    ) -> Task<Result<()>> {
 2692        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2693    }
 2694
 2695    pub fn reopen_closed_item(
 2696        &mut self,
 2697        window: &mut Window,
 2698        cx: &mut Context<Workspace>,
 2699    ) -> Task<Result<()>> {
 2700        self.navigate_history(
 2701            self.active_pane().downgrade(),
 2702            NavigationMode::ReopeningClosedItem,
 2703            window,
 2704            cx,
 2705        )
 2706    }
 2707
 2708    pub fn client(&self) -> &Arc<Client> {
 2709        &self.app_state.client
 2710    }
 2711
 2712    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2713        self.titlebar_item = Some(item);
 2714        cx.notify();
 2715    }
 2716
 2717    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2718        self.on_prompt_for_new_path = Some(prompt)
 2719    }
 2720
 2721    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2722        self.on_prompt_for_open_path = Some(prompt)
 2723    }
 2724
 2725    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2726        self.terminal_provider = Some(Box::new(provider));
 2727    }
 2728
 2729    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2730        self.debugger_provider = Some(Arc::new(provider));
 2731    }
 2732
 2733    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2734        self.debugger_provider.clone()
 2735    }
 2736
 2737    pub fn prompt_for_open_path(
 2738        &mut self,
 2739        path_prompt_options: PathPromptOptions,
 2740        lister: DirectoryLister,
 2741        window: &mut Window,
 2742        cx: &mut Context<Self>,
 2743    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2744        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2745            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2746            let rx = prompt(self, lister, window, cx);
 2747            self.on_prompt_for_open_path = Some(prompt);
 2748            rx
 2749        } else {
 2750            let (tx, rx) = oneshot::channel();
 2751            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2752
 2753            cx.spawn_in(window, async move |workspace, cx| {
 2754                let Ok(result) = abs_path.await else {
 2755                    return Ok(());
 2756                };
 2757
 2758                match result {
 2759                    Ok(result) => {
 2760                        tx.send(result).ok();
 2761                    }
 2762                    Err(err) => {
 2763                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2764                            workspace.show_portal_error(err.to_string(), cx);
 2765                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2766                            let rx = prompt(workspace, lister, window, cx);
 2767                            workspace.on_prompt_for_open_path = Some(prompt);
 2768                            rx
 2769                        })?;
 2770                        if let Ok(path) = rx.await {
 2771                            tx.send(path).ok();
 2772                        }
 2773                    }
 2774                };
 2775                anyhow::Ok(())
 2776            })
 2777            .detach();
 2778
 2779            rx
 2780        }
 2781    }
 2782
 2783    pub fn prompt_for_new_path(
 2784        &mut self,
 2785        lister: DirectoryLister,
 2786        suggested_name: Option<String>,
 2787        window: &mut Window,
 2788        cx: &mut Context<Self>,
 2789    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2790        if self.project.read(cx).is_via_collab()
 2791            || self.project.read(cx).is_via_remote_server()
 2792            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2793        {
 2794            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2795            let rx = prompt(self, lister, suggested_name, window, cx);
 2796            self.on_prompt_for_new_path = Some(prompt);
 2797            return rx;
 2798        }
 2799
 2800        let (tx, rx) = oneshot::channel();
 2801        cx.spawn_in(window, async move |workspace, cx| {
 2802            let abs_path = workspace.update(cx, |workspace, cx| {
 2803                let relative_to = workspace
 2804                    .most_recent_active_path(cx)
 2805                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2806                    .or_else(|| {
 2807                        let project = workspace.project.read(cx);
 2808                        project.visible_worktrees(cx).find_map(|worktree| {
 2809                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2810                        })
 2811                    })
 2812                    .or_else(std::env::home_dir)
 2813                    .unwrap_or_else(|| PathBuf::from(""));
 2814                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2815            })?;
 2816            let abs_path = match abs_path.await? {
 2817                Ok(path) => path,
 2818                Err(err) => {
 2819                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2820                        workspace.show_portal_error(err.to_string(), cx);
 2821
 2822                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2823                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2824                        workspace.on_prompt_for_new_path = Some(prompt);
 2825                        rx
 2826                    })?;
 2827                    if let Ok(path) = rx.await {
 2828                        tx.send(path).ok();
 2829                    }
 2830                    return anyhow::Ok(());
 2831                }
 2832            };
 2833
 2834            tx.send(abs_path.map(|path| vec![path])).ok();
 2835            anyhow::Ok(())
 2836        })
 2837        .detach();
 2838
 2839        rx
 2840    }
 2841
 2842    pub fn titlebar_item(&self) -> Option<AnyView> {
 2843        self.titlebar_item.clone()
 2844    }
 2845
 2846    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2847    /// When set, git-related operations should use this worktree instead of deriving
 2848    /// the active worktree from the focused file.
 2849    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2850        self.active_worktree_override
 2851    }
 2852
 2853    pub fn set_active_worktree_override(
 2854        &mut self,
 2855        worktree_id: Option<WorktreeId>,
 2856        cx: &mut Context<Self>,
 2857    ) {
 2858        self.active_worktree_override = worktree_id;
 2859        cx.notify();
 2860    }
 2861
 2862    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2863        self.active_worktree_override = None;
 2864        cx.notify();
 2865    }
 2866
 2867    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2868    ///
 2869    /// If the given workspace has a local project, then it will be passed
 2870    /// to the callback. Otherwise, a new empty window will be created.
 2871    pub fn with_local_workspace<T, F>(
 2872        &mut self,
 2873        window: &mut Window,
 2874        cx: &mut Context<Self>,
 2875        callback: F,
 2876    ) -> Task<Result<T>>
 2877    where
 2878        T: 'static,
 2879        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2880    {
 2881        if self.project.read(cx).is_local() {
 2882            Task::ready(Ok(callback(self, window, cx)))
 2883        } else {
 2884            let env = self.project.read(cx).cli_environment(cx);
 2885            let task = Self::new_local(
 2886                Vec::new(),
 2887                self.app_state.clone(),
 2888                None,
 2889                env,
 2890                None,
 2891                true,
 2892                cx,
 2893            );
 2894            cx.spawn_in(window, async move |_vh, cx| {
 2895                let OpenResult {
 2896                    window: multi_workspace_window,
 2897                    ..
 2898                } = task.await?;
 2899                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2900                    let workspace = multi_workspace.workspace().clone();
 2901                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2902                })
 2903            })
 2904        }
 2905    }
 2906
 2907    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2908    ///
 2909    /// If the given workspace has a local project, then it will be passed
 2910    /// to the callback. Otherwise, a new empty window will be created.
 2911    pub fn with_local_or_wsl_workspace<T, F>(
 2912        &mut self,
 2913        window: &mut Window,
 2914        cx: &mut Context<Self>,
 2915        callback: F,
 2916    ) -> Task<Result<T>>
 2917    where
 2918        T: 'static,
 2919        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2920    {
 2921        let project = self.project.read(cx);
 2922        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2923            Task::ready(Ok(callback(self, window, cx)))
 2924        } else {
 2925            let env = self.project.read(cx).cli_environment(cx);
 2926            let task = Self::new_local(
 2927                Vec::new(),
 2928                self.app_state.clone(),
 2929                None,
 2930                env,
 2931                None,
 2932                true,
 2933                cx,
 2934            );
 2935            cx.spawn_in(window, async move |_vh, cx| {
 2936                let OpenResult {
 2937                    window: multi_workspace_window,
 2938                    ..
 2939                } = task.await?;
 2940                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2941                    let workspace = multi_workspace.workspace().clone();
 2942                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2943                })
 2944            })
 2945        }
 2946    }
 2947
 2948    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2949        self.project.read(cx).worktrees(cx)
 2950    }
 2951
 2952    pub fn visible_worktrees<'a>(
 2953        &self,
 2954        cx: &'a App,
 2955    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2956        self.project.read(cx).visible_worktrees(cx)
 2957    }
 2958
 2959    #[cfg(any(test, feature = "test-support"))]
 2960    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2961        let futures = self
 2962            .worktrees(cx)
 2963            .filter_map(|worktree| worktree.read(cx).as_local())
 2964            .map(|worktree| worktree.scan_complete())
 2965            .collect::<Vec<_>>();
 2966        async move {
 2967            for future in futures {
 2968                future.await;
 2969            }
 2970        }
 2971    }
 2972
 2973    pub fn close_global(cx: &mut App) {
 2974        cx.defer(|cx| {
 2975            cx.windows().iter().find(|window| {
 2976                window
 2977                    .update(cx, |_, window, _| {
 2978                        if window.is_window_active() {
 2979                            //This can only get called when the window's project connection has been lost
 2980                            //so we don't need to prompt the user for anything and instead just close the window
 2981                            window.remove_window();
 2982                            true
 2983                        } else {
 2984                            false
 2985                        }
 2986                    })
 2987                    .unwrap_or(false)
 2988            });
 2989        });
 2990    }
 2991
 2992    pub fn move_focused_panel_to_next_position(
 2993        &mut self,
 2994        _: &MoveFocusedPanelToNextPosition,
 2995        window: &mut Window,
 2996        cx: &mut Context<Self>,
 2997    ) {
 2998        let docks = self.all_docks();
 2999        let active_dock = docks
 3000            .into_iter()
 3001            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3002
 3003        if let Some(dock) = active_dock {
 3004            dock.update(cx, |dock, cx| {
 3005                let active_panel = dock
 3006                    .active_panel()
 3007                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3008
 3009                if let Some(panel) = active_panel {
 3010                    panel.move_to_next_position(window, cx);
 3011                }
 3012            })
 3013        }
 3014    }
 3015
 3016    pub fn prepare_to_close(
 3017        &mut self,
 3018        close_intent: CloseIntent,
 3019        window: &mut Window,
 3020        cx: &mut Context<Self>,
 3021    ) -> Task<Result<bool>> {
 3022        let active_call = self.active_global_call();
 3023
 3024        cx.spawn_in(window, async move |this, cx| {
 3025            this.update(cx, |this, _| {
 3026                if close_intent == CloseIntent::CloseWindow {
 3027                    this.removing = true;
 3028                }
 3029            })?;
 3030
 3031            let workspace_count = cx.update(|_window, cx| {
 3032                cx.windows()
 3033                    .iter()
 3034                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3035                    .count()
 3036            })?;
 3037
 3038            #[cfg(target_os = "macos")]
 3039            let save_last_workspace = false;
 3040
 3041            // On Linux and Windows, closing the last window should restore the last workspace.
 3042            #[cfg(not(target_os = "macos"))]
 3043            let save_last_workspace = {
 3044                let remaining_workspaces = cx.update(|_window, cx| {
 3045                    cx.windows()
 3046                        .iter()
 3047                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3048                        .filter_map(|multi_workspace| {
 3049                            multi_workspace
 3050                                .update(cx, |multi_workspace, _, cx| {
 3051                                    multi_workspace.workspace().read(cx).removing
 3052                                })
 3053                                .ok()
 3054                        })
 3055                        .filter(|removing| !removing)
 3056                        .count()
 3057                })?;
 3058
 3059                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3060            };
 3061
 3062            if let Some(active_call) = active_call
 3063                && workspace_count == 1
 3064                && cx
 3065                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3066                    .unwrap_or(false)
 3067            {
 3068                if close_intent == CloseIntent::CloseWindow {
 3069                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3070                    let answer = cx.update(|window, cx| {
 3071                        window.prompt(
 3072                            PromptLevel::Warning,
 3073                            "Do you want to leave the current call?",
 3074                            None,
 3075                            &["Close window and hang up", "Cancel"],
 3076                            cx,
 3077                        )
 3078                    })?;
 3079
 3080                    if answer.await.log_err() == Some(1) {
 3081                        return anyhow::Ok(false);
 3082                    } else {
 3083                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3084                            task.await.log_err();
 3085                        }
 3086                    }
 3087                }
 3088                if close_intent == CloseIntent::ReplaceWindow {
 3089                    _ = cx.update(|_window, cx| {
 3090                        let multi_workspace = cx
 3091                            .windows()
 3092                            .iter()
 3093                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3094                            .next()
 3095                            .unwrap();
 3096                        let project = multi_workspace
 3097                            .read(cx)?
 3098                            .workspace()
 3099                            .read(cx)
 3100                            .project
 3101                            .clone();
 3102                        if project.read(cx).is_shared() {
 3103                            active_call.0.unshare_project(project, cx)?;
 3104                        }
 3105                        Ok::<_, anyhow::Error>(())
 3106                    });
 3107                }
 3108            }
 3109
 3110            let save_result = this
 3111                .update_in(cx, |this, window, cx| {
 3112                    this.save_all_internal(SaveIntent::Close, window, cx)
 3113                })?
 3114                .await;
 3115
 3116            // If we're not quitting, but closing, we remove the workspace from
 3117            // the current session.
 3118            if close_intent != CloseIntent::Quit
 3119                && !save_last_workspace
 3120                && save_result.as_ref().is_ok_and(|&res| res)
 3121            {
 3122                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3123                    .await;
 3124            }
 3125
 3126            save_result
 3127        })
 3128    }
 3129
 3130    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3131        self.save_all_internal(
 3132            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3133            window,
 3134            cx,
 3135        )
 3136        .detach_and_log_err(cx);
 3137    }
 3138
 3139    fn send_keystrokes(
 3140        &mut self,
 3141        action: &SendKeystrokes,
 3142        window: &mut Window,
 3143        cx: &mut Context<Self>,
 3144    ) {
 3145        let keystrokes: Vec<Keystroke> = action
 3146            .0
 3147            .split(' ')
 3148            .flat_map(|k| Keystroke::parse(k).log_err())
 3149            .map(|k| {
 3150                cx.keyboard_mapper()
 3151                    .map_key_equivalent(k, false)
 3152                    .inner()
 3153                    .clone()
 3154            })
 3155            .collect();
 3156        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3157    }
 3158
 3159    pub fn send_keystrokes_impl(
 3160        &mut self,
 3161        keystrokes: Vec<Keystroke>,
 3162        window: &mut Window,
 3163        cx: &mut Context<Self>,
 3164    ) -> Shared<Task<()>> {
 3165        let mut state = self.dispatching_keystrokes.borrow_mut();
 3166        if !state.dispatched.insert(keystrokes.clone()) {
 3167            cx.propagate();
 3168            return state.task.clone().unwrap();
 3169        }
 3170
 3171        state.queue.extend(keystrokes);
 3172
 3173        let keystrokes = self.dispatching_keystrokes.clone();
 3174        if state.task.is_none() {
 3175            state.task = Some(
 3176                window
 3177                    .spawn(cx, async move |cx| {
 3178                        // limit to 100 keystrokes to avoid infinite recursion.
 3179                        for _ in 0..100 {
 3180                            let keystroke = {
 3181                                let mut state = keystrokes.borrow_mut();
 3182                                let Some(keystroke) = state.queue.pop_front() else {
 3183                                    state.dispatched.clear();
 3184                                    state.task.take();
 3185                                    return;
 3186                                };
 3187                                keystroke
 3188                            };
 3189                            cx.update(|window, cx| {
 3190                                let focused = window.focused(cx);
 3191                                window.dispatch_keystroke(keystroke.clone(), cx);
 3192                                if window.focused(cx) != focused {
 3193                                    // dispatch_keystroke may cause the focus to change.
 3194                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3195                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3196                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3197                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3198                                    // )
 3199                                    window.draw(cx).clear();
 3200                                }
 3201                            })
 3202                            .ok();
 3203
 3204                            // Yield between synthetic keystrokes so deferred focus and
 3205                            // other effects can settle before dispatching the next key.
 3206                            yield_now().await;
 3207                        }
 3208
 3209                        *keystrokes.borrow_mut() = Default::default();
 3210                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3211                    })
 3212                    .shared(),
 3213            );
 3214        }
 3215        state.task.clone().unwrap()
 3216    }
 3217
 3218    fn save_all_internal(
 3219        &mut self,
 3220        mut save_intent: SaveIntent,
 3221        window: &mut Window,
 3222        cx: &mut Context<Self>,
 3223    ) -> Task<Result<bool>> {
 3224        if self.project.read(cx).is_disconnected(cx) {
 3225            return Task::ready(Ok(true));
 3226        }
 3227        let dirty_items = self
 3228            .panes
 3229            .iter()
 3230            .flat_map(|pane| {
 3231                pane.read(cx).items().filter_map(|item| {
 3232                    if item.is_dirty(cx) {
 3233                        item.tab_content_text(0, cx);
 3234                        Some((pane.downgrade(), item.boxed_clone()))
 3235                    } else {
 3236                        None
 3237                    }
 3238                })
 3239            })
 3240            .collect::<Vec<_>>();
 3241
 3242        let project = self.project.clone();
 3243        cx.spawn_in(window, async move |workspace, cx| {
 3244            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3245                let (serialize_tasks, remaining_dirty_items) =
 3246                    workspace.update_in(cx, |workspace, window, cx| {
 3247                        let mut remaining_dirty_items = Vec::new();
 3248                        let mut serialize_tasks = Vec::new();
 3249                        for (pane, item) in dirty_items {
 3250                            if let Some(task) = item
 3251                                .to_serializable_item_handle(cx)
 3252                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3253                            {
 3254                                serialize_tasks.push(task);
 3255                            } else {
 3256                                remaining_dirty_items.push((pane, item));
 3257                            }
 3258                        }
 3259                        (serialize_tasks, remaining_dirty_items)
 3260                    })?;
 3261
 3262                futures::future::try_join_all(serialize_tasks).await?;
 3263
 3264                if !remaining_dirty_items.is_empty() {
 3265                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3266                }
 3267
 3268                if remaining_dirty_items.len() > 1 {
 3269                    let answer = workspace.update_in(cx, |_, window, cx| {
 3270                        let detail = Pane::file_names_for_prompt(
 3271                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3272                            cx,
 3273                        );
 3274                        window.prompt(
 3275                            PromptLevel::Warning,
 3276                            "Do you want to save all changes in the following files?",
 3277                            Some(&detail),
 3278                            &["Save all", "Discard all", "Cancel"],
 3279                            cx,
 3280                        )
 3281                    })?;
 3282                    match answer.await.log_err() {
 3283                        Some(0) => save_intent = SaveIntent::SaveAll,
 3284                        Some(1) => save_intent = SaveIntent::Skip,
 3285                        Some(2) => return Ok(false),
 3286                        _ => {}
 3287                    }
 3288                }
 3289
 3290                remaining_dirty_items
 3291            } else {
 3292                dirty_items
 3293            };
 3294
 3295            for (pane, item) in dirty_items {
 3296                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3297                    (
 3298                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3299                        item.project_entry_ids(cx),
 3300                    )
 3301                })?;
 3302                if (singleton || !project_entry_ids.is_empty())
 3303                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3304                {
 3305                    return Ok(false);
 3306                }
 3307            }
 3308            Ok(true)
 3309        })
 3310    }
 3311
 3312    pub fn open_workspace_for_paths(
 3313        &mut self,
 3314        replace_current_window: bool,
 3315        paths: Vec<PathBuf>,
 3316        window: &mut Window,
 3317        cx: &mut Context<Self>,
 3318    ) -> Task<Result<Entity<Workspace>>> {
 3319        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 3320        let is_remote = self.project.read(cx).is_via_collab();
 3321        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3322        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3323
 3324        let window_to_replace = if replace_current_window {
 3325            window_handle
 3326        } else if is_remote || has_worktree || has_dirty_items {
 3327            None
 3328        } else {
 3329            window_handle
 3330        };
 3331        let app_state = self.app_state.clone();
 3332
 3333        cx.spawn(async move |_, cx| {
 3334            let OpenResult { workspace, .. } = cx
 3335                .update(|cx| {
 3336                    open_paths(
 3337                        &paths,
 3338                        app_state,
 3339                        OpenOptions {
 3340                            replace_window: window_to_replace,
 3341                            ..Default::default()
 3342                        },
 3343                        cx,
 3344                    )
 3345                })
 3346                .await?;
 3347            Ok(workspace)
 3348        })
 3349    }
 3350
 3351    #[allow(clippy::type_complexity)]
 3352    pub fn open_paths(
 3353        &mut self,
 3354        mut abs_paths: Vec<PathBuf>,
 3355        options: OpenOptions,
 3356        pane: Option<WeakEntity<Pane>>,
 3357        window: &mut Window,
 3358        cx: &mut Context<Self>,
 3359    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3360        let fs = self.app_state.fs.clone();
 3361
 3362        let caller_ordered_abs_paths = abs_paths.clone();
 3363
 3364        // Sort the paths to ensure we add worktrees for parents before their children.
 3365        abs_paths.sort_unstable();
 3366        cx.spawn_in(window, async move |this, cx| {
 3367            let mut tasks = Vec::with_capacity(abs_paths.len());
 3368
 3369            for abs_path in &abs_paths {
 3370                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3371                    OpenVisible::All => Some(true),
 3372                    OpenVisible::None => Some(false),
 3373                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3374                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3375                        Some(None) => Some(true),
 3376                        None => None,
 3377                    },
 3378                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3379                        Some(Some(metadata)) => Some(metadata.is_dir),
 3380                        Some(None) => Some(false),
 3381                        None => None,
 3382                    },
 3383                };
 3384                let project_path = match visible {
 3385                    Some(visible) => match this
 3386                        .update(cx, |this, cx| {
 3387                            Workspace::project_path_for_path(
 3388                                this.project.clone(),
 3389                                abs_path,
 3390                                visible,
 3391                                cx,
 3392                            )
 3393                        })
 3394                        .log_err()
 3395                    {
 3396                        Some(project_path) => project_path.await.log_err(),
 3397                        None => None,
 3398                    },
 3399                    None => None,
 3400                };
 3401
 3402                let this = this.clone();
 3403                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3404                let fs = fs.clone();
 3405                let pane = pane.clone();
 3406                let task = cx.spawn(async move |cx| {
 3407                    let (_worktree, project_path) = project_path?;
 3408                    if fs.is_dir(&abs_path).await {
 3409                        // Opening a directory should not race to update the active entry.
 3410                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3411                        None
 3412                    } else {
 3413                        Some(
 3414                            this.update_in(cx, |this, window, cx| {
 3415                                this.open_path(
 3416                                    project_path,
 3417                                    pane,
 3418                                    options.focus.unwrap_or(true),
 3419                                    window,
 3420                                    cx,
 3421                                )
 3422                            })
 3423                            .ok()?
 3424                            .await,
 3425                        )
 3426                    }
 3427                });
 3428                tasks.push(task);
 3429            }
 3430
 3431            let results = futures::future::join_all(tasks).await;
 3432
 3433            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3434            let mut winner: Option<(PathBuf, bool)> = None;
 3435            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3436                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3437                    if !metadata.is_dir {
 3438                        winner = Some((abs_path, false));
 3439                        break;
 3440                    }
 3441                    if winner.is_none() {
 3442                        winner = Some((abs_path, true));
 3443                    }
 3444                } else if winner.is_none() {
 3445                    winner = Some((abs_path, false));
 3446                }
 3447            }
 3448
 3449            // Compute the winner entry id on the foreground thread and emit once, after all
 3450            // paths finish opening. This avoids races between concurrently-opening paths
 3451            // (directories in particular) and makes the resulting project panel selection
 3452            // deterministic.
 3453            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3454                'emit_winner: {
 3455                    let winner_abs_path: Arc<Path> =
 3456                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3457
 3458                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3459                        OpenVisible::All => true,
 3460                        OpenVisible::None => false,
 3461                        OpenVisible::OnlyFiles => !winner_is_dir,
 3462                        OpenVisible::OnlyDirectories => winner_is_dir,
 3463                    };
 3464
 3465                    let Some(worktree_task) = this
 3466                        .update(cx, |workspace, cx| {
 3467                            workspace.project.update(cx, |project, cx| {
 3468                                project.find_or_create_worktree(
 3469                                    winner_abs_path.as_ref(),
 3470                                    visible,
 3471                                    cx,
 3472                                )
 3473                            })
 3474                        })
 3475                        .ok()
 3476                    else {
 3477                        break 'emit_winner;
 3478                    };
 3479
 3480                    let Ok((worktree, _)) = worktree_task.await else {
 3481                        break 'emit_winner;
 3482                    };
 3483
 3484                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3485                        let worktree = worktree.read(cx);
 3486                        let worktree_abs_path = worktree.abs_path();
 3487                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3488                            worktree.root_entry()
 3489                        } else {
 3490                            winner_abs_path
 3491                                .strip_prefix(worktree_abs_path.as_ref())
 3492                                .ok()
 3493                                .and_then(|relative_path| {
 3494                                    let relative_path =
 3495                                        RelPath::new(relative_path, PathStyle::local())
 3496                                            .log_err()?;
 3497                                    worktree.entry_for_path(&relative_path)
 3498                                })
 3499                        }?;
 3500                        Some(entry.id)
 3501                    }) else {
 3502                        break 'emit_winner;
 3503                    };
 3504
 3505                    this.update(cx, |workspace, cx| {
 3506                        workspace.project.update(cx, |_, cx| {
 3507                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3508                        });
 3509                    })
 3510                    .ok();
 3511                }
 3512            }
 3513
 3514            results
 3515        })
 3516    }
 3517
 3518    pub fn open_resolved_path(
 3519        &mut self,
 3520        path: ResolvedPath,
 3521        window: &mut Window,
 3522        cx: &mut Context<Self>,
 3523    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3524        match path {
 3525            ResolvedPath::ProjectPath { project_path, .. } => {
 3526                self.open_path(project_path, None, true, window, cx)
 3527            }
 3528            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3529                PathBuf::from(path),
 3530                OpenOptions {
 3531                    visible: Some(OpenVisible::None),
 3532                    ..Default::default()
 3533                },
 3534                window,
 3535                cx,
 3536            ),
 3537        }
 3538    }
 3539
 3540    pub fn absolute_path_of_worktree(
 3541        &self,
 3542        worktree_id: WorktreeId,
 3543        cx: &mut Context<Self>,
 3544    ) -> Option<PathBuf> {
 3545        self.project
 3546            .read(cx)
 3547            .worktree_for_id(worktree_id, cx)
 3548            // TODO: use `abs_path` or `root_dir`
 3549            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3550    }
 3551
 3552    pub fn add_folder_to_project(
 3553        &mut self,
 3554        _: &AddFolderToProject,
 3555        window: &mut Window,
 3556        cx: &mut Context<Self>,
 3557    ) {
 3558        let project = self.project.read(cx);
 3559        if project.is_via_collab() {
 3560            self.show_error(
 3561                &anyhow!("You cannot add folders to someone else's project"),
 3562                cx,
 3563            );
 3564            return;
 3565        }
 3566        let paths = self.prompt_for_open_path(
 3567            PathPromptOptions {
 3568                files: false,
 3569                directories: true,
 3570                multiple: true,
 3571                prompt: None,
 3572            },
 3573            DirectoryLister::Project(self.project.clone()),
 3574            window,
 3575            cx,
 3576        );
 3577        cx.spawn_in(window, async move |this, cx| {
 3578            if let Some(paths) = paths.await.log_err().flatten() {
 3579                let results = this
 3580                    .update_in(cx, |this, window, cx| {
 3581                        this.open_paths(
 3582                            paths,
 3583                            OpenOptions {
 3584                                visible: Some(OpenVisible::All),
 3585                                ..Default::default()
 3586                            },
 3587                            None,
 3588                            window,
 3589                            cx,
 3590                        )
 3591                    })?
 3592                    .await;
 3593                for result in results.into_iter().flatten() {
 3594                    result.log_err();
 3595                }
 3596            }
 3597            anyhow::Ok(())
 3598        })
 3599        .detach_and_log_err(cx);
 3600    }
 3601
 3602    pub fn project_path_for_path(
 3603        project: Entity<Project>,
 3604        abs_path: &Path,
 3605        visible: bool,
 3606        cx: &mut App,
 3607    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3608        let entry = project.update(cx, |project, cx| {
 3609            project.find_or_create_worktree(abs_path, visible, cx)
 3610        });
 3611        cx.spawn(async move |cx| {
 3612            let (worktree, path) = entry.await?;
 3613            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3614            Ok((worktree, ProjectPath { worktree_id, path }))
 3615        })
 3616    }
 3617
 3618    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3619        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3620    }
 3621
 3622    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3623        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3624    }
 3625
 3626    pub fn items_of_type<'a, T: Item>(
 3627        &'a self,
 3628        cx: &'a App,
 3629    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3630        self.panes
 3631            .iter()
 3632            .flat_map(|pane| pane.read(cx).items_of_type())
 3633    }
 3634
 3635    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3636        self.active_pane().read(cx).active_item()
 3637    }
 3638
 3639    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3640        let item = self.active_item(cx)?;
 3641        item.to_any_view().downcast::<I>().ok()
 3642    }
 3643
 3644    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3645        self.active_item(cx).and_then(|item| item.project_path(cx))
 3646    }
 3647
 3648    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3649        self.recent_navigation_history_iter(cx)
 3650            .filter_map(|(path, abs_path)| {
 3651                let worktree = self
 3652                    .project
 3653                    .read(cx)
 3654                    .worktree_for_id(path.worktree_id, cx)?;
 3655                if worktree.read(cx).is_visible() {
 3656                    abs_path
 3657                } else {
 3658                    None
 3659                }
 3660            })
 3661            .next()
 3662    }
 3663
 3664    pub fn save_active_item(
 3665        &mut self,
 3666        save_intent: SaveIntent,
 3667        window: &mut Window,
 3668        cx: &mut App,
 3669    ) -> Task<Result<()>> {
 3670        let project = self.project.clone();
 3671        let pane = self.active_pane();
 3672        let item = pane.read(cx).active_item();
 3673        let pane = pane.downgrade();
 3674
 3675        window.spawn(cx, async move |cx| {
 3676            if let Some(item) = item {
 3677                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3678                    .await
 3679                    .map(|_| ())
 3680            } else {
 3681                Ok(())
 3682            }
 3683        })
 3684    }
 3685
 3686    pub fn close_inactive_items_and_panes(
 3687        &mut self,
 3688        action: &CloseInactiveTabsAndPanes,
 3689        window: &mut Window,
 3690        cx: &mut Context<Self>,
 3691    ) {
 3692        if let Some(task) = self.close_all_internal(
 3693            true,
 3694            action.save_intent.unwrap_or(SaveIntent::Close),
 3695            window,
 3696            cx,
 3697        ) {
 3698            task.detach_and_log_err(cx)
 3699        }
 3700    }
 3701
 3702    pub fn close_all_items_and_panes(
 3703        &mut self,
 3704        action: &CloseAllItemsAndPanes,
 3705        window: &mut Window,
 3706        cx: &mut Context<Self>,
 3707    ) {
 3708        if let Some(task) = self.close_all_internal(
 3709            false,
 3710            action.save_intent.unwrap_or(SaveIntent::Close),
 3711            window,
 3712            cx,
 3713        ) {
 3714            task.detach_and_log_err(cx)
 3715        }
 3716    }
 3717
 3718    /// Closes the active item across all panes.
 3719    pub fn close_item_in_all_panes(
 3720        &mut self,
 3721        action: &CloseItemInAllPanes,
 3722        window: &mut Window,
 3723        cx: &mut Context<Self>,
 3724    ) {
 3725        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3726            return;
 3727        };
 3728
 3729        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3730        let close_pinned = action.close_pinned;
 3731
 3732        if let Some(project_path) = active_item.project_path(cx) {
 3733            self.close_items_with_project_path(
 3734                &project_path,
 3735                save_intent,
 3736                close_pinned,
 3737                window,
 3738                cx,
 3739            );
 3740        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3741            let item_id = active_item.item_id();
 3742            self.active_pane().update(cx, |pane, cx| {
 3743                pane.close_item_by_id(item_id, save_intent, window, cx)
 3744                    .detach_and_log_err(cx);
 3745            });
 3746        }
 3747    }
 3748
 3749    /// Closes all items with the given project path across all panes.
 3750    pub fn close_items_with_project_path(
 3751        &mut self,
 3752        project_path: &ProjectPath,
 3753        save_intent: SaveIntent,
 3754        close_pinned: bool,
 3755        window: &mut Window,
 3756        cx: &mut Context<Self>,
 3757    ) {
 3758        let panes = self.panes().to_vec();
 3759        for pane in panes {
 3760            pane.update(cx, |pane, cx| {
 3761                pane.close_items_for_project_path(
 3762                    project_path,
 3763                    save_intent,
 3764                    close_pinned,
 3765                    window,
 3766                    cx,
 3767                )
 3768                .detach_and_log_err(cx);
 3769            });
 3770        }
 3771    }
 3772
 3773    fn close_all_internal(
 3774        &mut self,
 3775        retain_active_pane: bool,
 3776        save_intent: SaveIntent,
 3777        window: &mut Window,
 3778        cx: &mut Context<Self>,
 3779    ) -> Option<Task<Result<()>>> {
 3780        let current_pane = self.active_pane();
 3781
 3782        let mut tasks = Vec::new();
 3783
 3784        if retain_active_pane {
 3785            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3786                pane.close_other_items(
 3787                    &CloseOtherItems {
 3788                        save_intent: None,
 3789                        close_pinned: false,
 3790                    },
 3791                    None,
 3792                    window,
 3793                    cx,
 3794                )
 3795            });
 3796
 3797            tasks.push(current_pane_close);
 3798        }
 3799
 3800        for pane in self.panes() {
 3801            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3802                continue;
 3803            }
 3804
 3805            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3806                pane.close_all_items(
 3807                    &CloseAllItems {
 3808                        save_intent: Some(save_intent),
 3809                        close_pinned: false,
 3810                    },
 3811                    window,
 3812                    cx,
 3813                )
 3814            });
 3815
 3816            tasks.push(close_pane_items)
 3817        }
 3818
 3819        if tasks.is_empty() {
 3820            None
 3821        } else {
 3822            Some(cx.spawn_in(window, async move |_, _| {
 3823                for task in tasks {
 3824                    task.await?
 3825                }
 3826                Ok(())
 3827            }))
 3828        }
 3829    }
 3830
 3831    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3832        self.dock_at_position(position).read(cx).is_open()
 3833    }
 3834
 3835    pub fn toggle_dock(
 3836        &mut self,
 3837        dock_side: DockPosition,
 3838        window: &mut Window,
 3839        cx: &mut Context<Self>,
 3840    ) {
 3841        let mut focus_center = false;
 3842        let mut reveal_dock = false;
 3843
 3844        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3845        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3846
 3847        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3848            telemetry::event!(
 3849                "Panel Button Clicked",
 3850                name = panel.persistent_name(),
 3851                toggle_state = !was_visible
 3852            );
 3853        }
 3854        if was_visible {
 3855            self.save_open_dock_positions(cx);
 3856        }
 3857
 3858        let dock = self.dock_at_position(dock_side);
 3859        dock.update(cx, |dock, cx| {
 3860            dock.set_open(!was_visible, window, cx);
 3861
 3862            if dock.active_panel().is_none() {
 3863                let Some(panel_ix) = dock
 3864                    .first_enabled_panel_idx(cx)
 3865                    .log_with_level(log::Level::Info)
 3866                else {
 3867                    return;
 3868                };
 3869                dock.activate_panel(panel_ix, window, cx);
 3870            }
 3871
 3872            if let Some(active_panel) = dock.active_panel() {
 3873                if was_visible {
 3874                    if active_panel
 3875                        .panel_focus_handle(cx)
 3876                        .contains_focused(window, cx)
 3877                    {
 3878                        focus_center = true;
 3879                    }
 3880                } else {
 3881                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3882                    window.focus(focus_handle, cx);
 3883                    reveal_dock = true;
 3884                }
 3885            }
 3886        });
 3887
 3888        if reveal_dock {
 3889            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3890        }
 3891
 3892        if focus_center {
 3893            self.active_pane
 3894                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3895        }
 3896
 3897        cx.notify();
 3898        self.serialize_workspace(window, cx);
 3899    }
 3900
 3901    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3902        self.all_docks().into_iter().find(|&dock| {
 3903            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3904        })
 3905    }
 3906
 3907    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3908        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3909            self.save_open_dock_positions(cx);
 3910            dock.update(cx, |dock, cx| {
 3911                dock.set_open(false, window, cx);
 3912            });
 3913            return true;
 3914        }
 3915        false
 3916    }
 3917
 3918    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3919        self.save_open_dock_positions(cx);
 3920        for dock in self.all_docks() {
 3921            dock.update(cx, |dock, cx| {
 3922                dock.set_open(false, window, cx);
 3923            });
 3924        }
 3925
 3926        cx.focus_self(window);
 3927        cx.notify();
 3928        self.serialize_workspace(window, cx);
 3929    }
 3930
 3931    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3932        self.all_docks()
 3933            .into_iter()
 3934            .filter_map(|dock| {
 3935                let dock_ref = dock.read(cx);
 3936                if dock_ref.is_open() {
 3937                    Some(dock_ref.position())
 3938                } else {
 3939                    None
 3940                }
 3941            })
 3942            .collect()
 3943    }
 3944
 3945    /// Saves the positions of currently open docks.
 3946    ///
 3947    /// Updates `last_open_dock_positions` with positions of all currently open
 3948    /// docks, to later be restored by the 'Toggle All Docks' action.
 3949    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3950        let open_dock_positions = self.get_open_dock_positions(cx);
 3951        if !open_dock_positions.is_empty() {
 3952            self.last_open_dock_positions = open_dock_positions;
 3953        }
 3954    }
 3955
 3956    /// Toggles all docks between open and closed states.
 3957    ///
 3958    /// If any docks are open, closes all and remembers their positions. If all
 3959    /// docks are closed, restores the last remembered dock configuration.
 3960    fn toggle_all_docks(
 3961        &mut self,
 3962        _: &ToggleAllDocks,
 3963        window: &mut Window,
 3964        cx: &mut Context<Self>,
 3965    ) {
 3966        let open_dock_positions = self.get_open_dock_positions(cx);
 3967
 3968        if !open_dock_positions.is_empty() {
 3969            self.close_all_docks(window, cx);
 3970        } else if !self.last_open_dock_positions.is_empty() {
 3971            self.restore_last_open_docks(window, cx);
 3972        }
 3973    }
 3974
 3975    /// Reopens docks from the most recently remembered configuration.
 3976    ///
 3977    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3978    /// and clears the stored positions.
 3979    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3980        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3981
 3982        for position in positions_to_open {
 3983            let dock = self.dock_at_position(position);
 3984            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3985        }
 3986
 3987        cx.focus_self(window);
 3988        cx.notify();
 3989        self.serialize_workspace(window, cx);
 3990    }
 3991
 3992    /// Transfer focus to the panel of the given type.
 3993    pub fn focus_panel<T: Panel>(
 3994        &mut self,
 3995        window: &mut Window,
 3996        cx: &mut Context<Self>,
 3997    ) -> Option<Entity<T>> {
 3998        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 3999        panel.to_any().downcast().ok()
 4000    }
 4001
 4002    /// Focus the panel of the given type if it isn't already focused. If it is
 4003    /// already focused, then transfer focus back to the workspace center.
 4004    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4005    /// panel when transferring focus back to the center.
 4006    pub fn toggle_panel_focus<T: Panel>(
 4007        &mut self,
 4008        window: &mut Window,
 4009        cx: &mut Context<Self>,
 4010    ) -> bool {
 4011        let mut did_focus_panel = false;
 4012        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4013            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4014            did_focus_panel
 4015        });
 4016
 4017        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4018            self.close_panel::<T>(window, cx);
 4019        }
 4020
 4021        telemetry::event!(
 4022            "Panel Button Clicked",
 4023            name = T::persistent_name(),
 4024            toggle_state = did_focus_panel
 4025        );
 4026
 4027        did_focus_panel
 4028    }
 4029
 4030    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4031        if let Some(item) = self.active_item(cx) {
 4032            item.item_focus_handle(cx).focus(window, cx);
 4033        } else {
 4034            log::error!("Could not find a focus target when switching focus to the center panes",);
 4035        }
 4036    }
 4037
 4038    pub fn activate_panel_for_proto_id(
 4039        &mut self,
 4040        panel_id: PanelId,
 4041        window: &mut Window,
 4042        cx: &mut Context<Self>,
 4043    ) -> Option<Arc<dyn PanelHandle>> {
 4044        let mut panel = None;
 4045        for dock in self.all_docks() {
 4046            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4047                panel = dock.update(cx, |dock, cx| {
 4048                    dock.activate_panel(panel_index, window, cx);
 4049                    dock.set_open(true, window, cx);
 4050                    dock.active_panel().cloned()
 4051                });
 4052                break;
 4053            }
 4054        }
 4055
 4056        if panel.is_some() {
 4057            cx.notify();
 4058            self.serialize_workspace(window, cx);
 4059        }
 4060
 4061        panel
 4062    }
 4063
 4064    /// Focus or unfocus the given panel type, depending on the given callback.
 4065    fn focus_or_unfocus_panel<T: Panel>(
 4066        &mut self,
 4067        window: &mut Window,
 4068        cx: &mut Context<Self>,
 4069        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4070    ) -> Option<Arc<dyn PanelHandle>> {
 4071        let mut result_panel = None;
 4072        let mut serialize = false;
 4073        for dock in self.all_docks() {
 4074            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4075                let mut focus_center = false;
 4076                let panel = dock.update(cx, |dock, cx| {
 4077                    dock.activate_panel(panel_index, window, cx);
 4078
 4079                    let panel = dock.active_panel().cloned();
 4080                    if let Some(panel) = panel.as_ref() {
 4081                        if should_focus(&**panel, window, cx) {
 4082                            dock.set_open(true, window, cx);
 4083                            panel.panel_focus_handle(cx).focus(window, cx);
 4084                        } else {
 4085                            focus_center = true;
 4086                        }
 4087                    }
 4088                    panel
 4089                });
 4090
 4091                if focus_center {
 4092                    self.active_pane
 4093                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4094                }
 4095
 4096                result_panel = panel;
 4097                serialize = true;
 4098                break;
 4099            }
 4100        }
 4101
 4102        if serialize {
 4103            self.serialize_workspace(window, cx);
 4104        }
 4105
 4106        cx.notify();
 4107        result_panel
 4108    }
 4109
 4110    /// Open the panel of the given type
 4111    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4112        for dock in self.all_docks() {
 4113            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4114                dock.update(cx, |dock, cx| {
 4115                    dock.activate_panel(panel_index, window, cx);
 4116                    dock.set_open(true, window, cx);
 4117                });
 4118            }
 4119        }
 4120    }
 4121
 4122    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4123        for dock in self.all_docks().iter() {
 4124            dock.update(cx, |dock, cx| {
 4125                if dock.panel::<T>().is_some() {
 4126                    dock.set_open(false, window, cx)
 4127                }
 4128            })
 4129        }
 4130    }
 4131
 4132    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4133        self.all_docks()
 4134            .iter()
 4135            .find_map(|dock| dock.read(cx).panel::<T>())
 4136    }
 4137
 4138    fn dismiss_zoomed_items_to_reveal(
 4139        &mut self,
 4140        dock_to_reveal: Option<DockPosition>,
 4141        window: &mut Window,
 4142        cx: &mut Context<Self>,
 4143    ) {
 4144        // If a center pane is zoomed, unzoom it.
 4145        for pane in &self.panes {
 4146            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4147                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4148            }
 4149        }
 4150
 4151        // If another dock is zoomed, hide it.
 4152        let mut focus_center = false;
 4153        for dock in self.all_docks() {
 4154            dock.update(cx, |dock, cx| {
 4155                if Some(dock.position()) != dock_to_reveal
 4156                    && let Some(panel) = dock.active_panel()
 4157                    && panel.is_zoomed(window, cx)
 4158                {
 4159                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4160                    dock.set_open(false, window, cx);
 4161                }
 4162            });
 4163        }
 4164
 4165        if focus_center {
 4166            self.active_pane
 4167                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4168        }
 4169
 4170        if self.zoomed_position != dock_to_reveal {
 4171            self.zoomed = None;
 4172            self.zoomed_position = None;
 4173            cx.emit(Event::ZoomChanged);
 4174        }
 4175
 4176        cx.notify();
 4177    }
 4178
 4179    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4180        let pane = cx.new(|cx| {
 4181            let mut pane = Pane::new(
 4182                self.weak_handle(),
 4183                self.project.clone(),
 4184                self.pane_history_timestamp.clone(),
 4185                None,
 4186                NewFile.boxed_clone(),
 4187                true,
 4188                window,
 4189                cx,
 4190            );
 4191            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4192            pane
 4193        });
 4194        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4195            .detach();
 4196        self.panes.push(pane.clone());
 4197
 4198        window.focus(&pane.focus_handle(cx), cx);
 4199
 4200        cx.emit(Event::PaneAdded(pane.clone()));
 4201        pane
 4202    }
 4203
 4204    pub fn add_item_to_center(
 4205        &mut self,
 4206        item: Box<dyn ItemHandle>,
 4207        window: &mut Window,
 4208        cx: &mut Context<Self>,
 4209    ) -> bool {
 4210        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4211            if let Some(center_pane) = center_pane.upgrade() {
 4212                center_pane.update(cx, |pane, cx| {
 4213                    pane.add_item(item, true, true, None, window, cx)
 4214                });
 4215                true
 4216            } else {
 4217                false
 4218            }
 4219        } else {
 4220            false
 4221        }
 4222    }
 4223
 4224    pub fn add_item_to_active_pane(
 4225        &mut self,
 4226        item: Box<dyn ItemHandle>,
 4227        destination_index: Option<usize>,
 4228        focus_item: bool,
 4229        window: &mut Window,
 4230        cx: &mut App,
 4231    ) {
 4232        self.add_item(
 4233            self.active_pane.clone(),
 4234            item,
 4235            destination_index,
 4236            false,
 4237            focus_item,
 4238            window,
 4239            cx,
 4240        )
 4241    }
 4242
 4243    pub fn add_item(
 4244        &mut self,
 4245        pane: Entity<Pane>,
 4246        item: Box<dyn ItemHandle>,
 4247        destination_index: Option<usize>,
 4248        activate_pane: bool,
 4249        focus_item: bool,
 4250        window: &mut Window,
 4251        cx: &mut App,
 4252    ) {
 4253        pane.update(cx, |pane, cx| {
 4254            pane.add_item(
 4255                item,
 4256                activate_pane,
 4257                focus_item,
 4258                destination_index,
 4259                window,
 4260                cx,
 4261            )
 4262        });
 4263    }
 4264
 4265    pub fn split_item(
 4266        &mut self,
 4267        split_direction: SplitDirection,
 4268        item: Box<dyn ItemHandle>,
 4269        window: &mut Window,
 4270        cx: &mut Context<Self>,
 4271    ) {
 4272        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4273        self.add_item(new_pane, item, None, true, true, window, cx);
 4274    }
 4275
 4276    pub fn open_abs_path(
 4277        &mut self,
 4278        abs_path: PathBuf,
 4279        options: OpenOptions,
 4280        window: &mut Window,
 4281        cx: &mut Context<Self>,
 4282    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4283        cx.spawn_in(window, async move |workspace, cx| {
 4284            let open_paths_task_result = workspace
 4285                .update_in(cx, |workspace, window, cx| {
 4286                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4287                })
 4288                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4289                .await;
 4290            anyhow::ensure!(
 4291                open_paths_task_result.len() == 1,
 4292                "open abs path {abs_path:?} task returned incorrect number of results"
 4293            );
 4294            match open_paths_task_result
 4295                .into_iter()
 4296                .next()
 4297                .expect("ensured single task result")
 4298            {
 4299                Some(open_result) => {
 4300                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4301                }
 4302                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4303            }
 4304        })
 4305    }
 4306
 4307    pub fn split_abs_path(
 4308        &mut self,
 4309        abs_path: PathBuf,
 4310        visible: bool,
 4311        window: &mut Window,
 4312        cx: &mut Context<Self>,
 4313    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4314        let project_path_task =
 4315            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4316        cx.spawn_in(window, async move |this, cx| {
 4317            let (_, path) = project_path_task.await?;
 4318            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4319                .await
 4320        })
 4321    }
 4322
 4323    pub fn open_path(
 4324        &mut self,
 4325        path: impl Into<ProjectPath>,
 4326        pane: Option<WeakEntity<Pane>>,
 4327        focus_item: bool,
 4328        window: &mut Window,
 4329        cx: &mut App,
 4330    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4331        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4332    }
 4333
 4334    pub fn open_path_preview(
 4335        &mut self,
 4336        path: impl Into<ProjectPath>,
 4337        pane: Option<WeakEntity<Pane>>,
 4338        focus_item: bool,
 4339        allow_preview: bool,
 4340        activate: bool,
 4341        window: &mut Window,
 4342        cx: &mut App,
 4343    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4344        let pane = pane.unwrap_or_else(|| {
 4345            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4346                self.panes
 4347                    .first()
 4348                    .expect("There must be an active pane")
 4349                    .downgrade()
 4350            })
 4351        });
 4352
 4353        let project_path = path.into();
 4354        let task = self.load_path(project_path.clone(), window, cx);
 4355        window.spawn(cx, async move |cx| {
 4356            let (project_entry_id, build_item) = task.await?;
 4357
 4358            pane.update_in(cx, |pane, window, cx| {
 4359                pane.open_item(
 4360                    project_entry_id,
 4361                    project_path,
 4362                    focus_item,
 4363                    allow_preview,
 4364                    activate,
 4365                    None,
 4366                    window,
 4367                    cx,
 4368                    build_item,
 4369                )
 4370            })
 4371        })
 4372    }
 4373
 4374    pub fn split_path(
 4375        &mut self,
 4376        path: impl Into<ProjectPath>,
 4377        window: &mut Window,
 4378        cx: &mut Context<Self>,
 4379    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4380        self.split_path_preview(path, false, None, window, cx)
 4381    }
 4382
 4383    pub fn split_path_preview(
 4384        &mut self,
 4385        path: impl Into<ProjectPath>,
 4386        allow_preview: bool,
 4387        split_direction: Option<SplitDirection>,
 4388        window: &mut Window,
 4389        cx: &mut Context<Self>,
 4390    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4391        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4392            self.panes
 4393                .first()
 4394                .expect("There must be an active pane")
 4395                .downgrade()
 4396        });
 4397
 4398        if let Member::Pane(center_pane) = &self.center.root
 4399            && center_pane.read(cx).items_len() == 0
 4400        {
 4401            return self.open_path(path, Some(pane), true, window, cx);
 4402        }
 4403
 4404        let project_path = path.into();
 4405        let task = self.load_path(project_path.clone(), window, cx);
 4406        cx.spawn_in(window, async move |this, cx| {
 4407            let (project_entry_id, build_item) = task.await?;
 4408            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4409                let pane = pane.upgrade()?;
 4410                let new_pane = this.split_pane(
 4411                    pane,
 4412                    split_direction.unwrap_or(SplitDirection::Right),
 4413                    window,
 4414                    cx,
 4415                );
 4416                new_pane.update(cx, |new_pane, cx| {
 4417                    Some(new_pane.open_item(
 4418                        project_entry_id,
 4419                        project_path,
 4420                        true,
 4421                        allow_preview,
 4422                        true,
 4423                        None,
 4424                        window,
 4425                        cx,
 4426                        build_item,
 4427                    ))
 4428                })
 4429            })
 4430            .map(|option| option.context("pane was dropped"))?
 4431        })
 4432    }
 4433
 4434    fn load_path(
 4435        &mut self,
 4436        path: ProjectPath,
 4437        window: &mut Window,
 4438        cx: &mut App,
 4439    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4440        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4441        registry.open_path(self.project(), &path, window, cx)
 4442    }
 4443
 4444    pub fn find_project_item<T>(
 4445        &self,
 4446        pane: &Entity<Pane>,
 4447        project_item: &Entity<T::Item>,
 4448        cx: &App,
 4449    ) -> Option<Entity<T>>
 4450    where
 4451        T: ProjectItem,
 4452    {
 4453        use project::ProjectItem as _;
 4454        let project_item = project_item.read(cx);
 4455        let entry_id = project_item.entry_id(cx);
 4456        let project_path = project_item.project_path(cx);
 4457
 4458        let mut item = None;
 4459        if let Some(entry_id) = entry_id {
 4460            item = pane.read(cx).item_for_entry(entry_id, cx);
 4461        }
 4462        if item.is_none()
 4463            && let Some(project_path) = project_path
 4464        {
 4465            item = pane.read(cx).item_for_path(project_path, cx);
 4466        }
 4467
 4468        item.and_then(|item| item.downcast::<T>())
 4469    }
 4470
 4471    pub fn is_project_item_open<T>(
 4472        &self,
 4473        pane: &Entity<Pane>,
 4474        project_item: &Entity<T::Item>,
 4475        cx: &App,
 4476    ) -> bool
 4477    where
 4478        T: ProjectItem,
 4479    {
 4480        self.find_project_item::<T>(pane, project_item, cx)
 4481            .is_some()
 4482    }
 4483
 4484    pub fn open_project_item<T>(
 4485        &mut self,
 4486        pane: Entity<Pane>,
 4487        project_item: Entity<T::Item>,
 4488        activate_pane: bool,
 4489        focus_item: bool,
 4490        keep_old_preview: bool,
 4491        allow_new_preview: bool,
 4492        window: &mut Window,
 4493        cx: &mut Context<Self>,
 4494    ) -> Entity<T>
 4495    where
 4496        T: ProjectItem,
 4497    {
 4498        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4499
 4500        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4501            if !keep_old_preview
 4502                && let Some(old_id) = old_item_id
 4503                && old_id != item.item_id()
 4504            {
 4505                // switching to a different item, so unpreview old active item
 4506                pane.update(cx, |pane, _| {
 4507                    pane.unpreview_item_if_preview(old_id);
 4508                });
 4509            }
 4510
 4511            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4512            if !allow_new_preview {
 4513                pane.update(cx, |pane, _| {
 4514                    pane.unpreview_item_if_preview(item.item_id());
 4515                });
 4516            }
 4517            return item;
 4518        }
 4519
 4520        let item = pane.update(cx, |pane, cx| {
 4521            cx.new(|cx| {
 4522                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4523            })
 4524        });
 4525        let mut destination_index = None;
 4526        pane.update(cx, |pane, cx| {
 4527            if !keep_old_preview && let Some(old_id) = old_item_id {
 4528                pane.unpreview_item_if_preview(old_id);
 4529            }
 4530            if allow_new_preview {
 4531                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4532            }
 4533        });
 4534
 4535        self.add_item(
 4536            pane,
 4537            Box::new(item.clone()),
 4538            destination_index,
 4539            activate_pane,
 4540            focus_item,
 4541            window,
 4542            cx,
 4543        );
 4544        item
 4545    }
 4546
 4547    pub fn open_shared_screen(
 4548        &mut self,
 4549        peer_id: PeerId,
 4550        window: &mut Window,
 4551        cx: &mut Context<Self>,
 4552    ) {
 4553        if let Some(shared_screen) =
 4554            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4555        {
 4556            self.active_pane.update(cx, |pane, cx| {
 4557                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4558            });
 4559        }
 4560    }
 4561
 4562    pub fn activate_item(
 4563        &mut self,
 4564        item: &dyn ItemHandle,
 4565        activate_pane: bool,
 4566        focus_item: bool,
 4567        window: &mut Window,
 4568        cx: &mut App,
 4569    ) -> bool {
 4570        let result = self.panes.iter().find_map(|pane| {
 4571            pane.read(cx)
 4572                .index_for_item(item)
 4573                .map(|ix| (pane.clone(), ix))
 4574        });
 4575        if let Some((pane, ix)) = result {
 4576            pane.update(cx, |pane, cx| {
 4577                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4578            });
 4579            true
 4580        } else {
 4581            false
 4582        }
 4583    }
 4584
 4585    fn activate_pane_at_index(
 4586        &mut self,
 4587        action: &ActivatePane,
 4588        window: &mut Window,
 4589        cx: &mut Context<Self>,
 4590    ) {
 4591        let panes = self.center.panes();
 4592        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4593            window.focus(&pane.focus_handle(cx), cx);
 4594        } else {
 4595            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4596                .detach();
 4597        }
 4598    }
 4599
 4600    fn move_item_to_pane_at_index(
 4601        &mut self,
 4602        action: &MoveItemToPane,
 4603        window: &mut Window,
 4604        cx: &mut Context<Self>,
 4605    ) {
 4606        let panes = self.center.panes();
 4607        let destination = match panes.get(action.destination) {
 4608            Some(&destination) => destination.clone(),
 4609            None => {
 4610                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4611                    return;
 4612                }
 4613                let direction = SplitDirection::Right;
 4614                let split_off_pane = self
 4615                    .find_pane_in_direction(direction, cx)
 4616                    .unwrap_or_else(|| self.active_pane.clone());
 4617                let new_pane = self.add_pane(window, cx);
 4618                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4619                new_pane
 4620            }
 4621        };
 4622
 4623        if action.clone {
 4624            if self
 4625                .active_pane
 4626                .read(cx)
 4627                .active_item()
 4628                .is_some_and(|item| item.can_split(cx))
 4629            {
 4630                clone_active_item(
 4631                    self.database_id(),
 4632                    &self.active_pane,
 4633                    &destination,
 4634                    action.focus,
 4635                    window,
 4636                    cx,
 4637                );
 4638                return;
 4639            }
 4640        }
 4641        move_active_item(
 4642            &self.active_pane,
 4643            &destination,
 4644            action.focus,
 4645            true,
 4646            window,
 4647            cx,
 4648        )
 4649    }
 4650
 4651    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4652        let panes = self.center.panes();
 4653        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4654            let next_ix = (ix + 1) % panes.len();
 4655            let next_pane = panes[next_ix].clone();
 4656            window.focus(&next_pane.focus_handle(cx), cx);
 4657        }
 4658    }
 4659
 4660    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4661        let panes = self.center.panes();
 4662        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4663            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4664            let prev_pane = panes[prev_ix].clone();
 4665            window.focus(&prev_pane.focus_handle(cx), cx);
 4666        }
 4667    }
 4668
 4669    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4670        let last_pane = self.center.last_pane();
 4671        window.focus(&last_pane.focus_handle(cx), cx);
 4672    }
 4673
 4674    pub fn activate_pane_in_direction(
 4675        &mut self,
 4676        direction: SplitDirection,
 4677        window: &mut Window,
 4678        cx: &mut App,
 4679    ) {
 4680        use ActivateInDirectionTarget as Target;
 4681        enum Origin {
 4682            Sidebar,
 4683            LeftDock,
 4684            RightDock,
 4685            BottomDock,
 4686            Center,
 4687        }
 4688
 4689        let origin: Origin = if self
 4690            .sidebar_focus_handle
 4691            .as_ref()
 4692            .is_some_and(|h| h.contains_focused(window, cx))
 4693        {
 4694            Origin::Sidebar
 4695        } else {
 4696            [
 4697                (&self.left_dock, Origin::LeftDock),
 4698                (&self.right_dock, Origin::RightDock),
 4699                (&self.bottom_dock, Origin::BottomDock),
 4700            ]
 4701            .into_iter()
 4702            .find_map(|(dock, origin)| {
 4703                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4704                    Some(origin)
 4705                } else {
 4706                    None
 4707                }
 4708            })
 4709            .unwrap_or(Origin::Center)
 4710        };
 4711
 4712        let get_last_active_pane = || {
 4713            let pane = self
 4714                .last_active_center_pane
 4715                .clone()
 4716                .unwrap_or_else(|| {
 4717                    self.panes
 4718                        .first()
 4719                        .expect("There must be an active pane")
 4720                        .downgrade()
 4721                })
 4722                .upgrade()?;
 4723            (pane.read(cx).items_len() != 0).then_some(pane)
 4724        };
 4725
 4726        let try_dock =
 4727            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4728
 4729        let sidebar_target = self
 4730            .sidebar_focus_handle
 4731            .as_ref()
 4732            .map(|h| Target::Sidebar(h.clone()));
 4733
 4734        let target = match (origin, direction) {
 4735            // From the sidebar, only Right navigates into the workspace.
 4736            (Origin::Sidebar, SplitDirection::Right) => try_dock(&self.left_dock)
 4737                .or_else(|| get_last_active_pane().map(Target::Pane))
 4738                .or_else(|| try_dock(&self.bottom_dock))
 4739                .or_else(|| try_dock(&self.right_dock)),
 4740
 4741            (Origin::Sidebar, _) => None,
 4742
 4743            // We're in the center, so we first try to go to a different pane,
 4744            // otherwise try to go to a dock.
 4745            (Origin::Center, direction) => {
 4746                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4747                    Some(Target::Pane(pane))
 4748                } else {
 4749                    match direction {
 4750                        SplitDirection::Up => None,
 4751                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4752                        SplitDirection::Left => try_dock(&self.left_dock).or(sidebar_target),
 4753                        SplitDirection::Right => try_dock(&self.right_dock),
 4754                    }
 4755                }
 4756            }
 4757
 4758            (Origin::LeftDock, SplitDirection::Right) => {
 4759                if let Some(last_active_pane) = get_last_active_pane() {
 4760                    Some(Target::Pane(last_active_pane))
 4761                } else {
 4762                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4763                }
 4764            }
 4765
 4766            (Origin::LeftDock, SplitDirection::Left) => sidebar_target,
 4767
 4768            (Origin::LeftDock, SplitDirection::Down)
 4769            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4770
 4771            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4772            (Origin::BottomDock, SplitDirection::Left) => {
 4773                try_dock(&self.left_dock).or(sidebar_target)
 4774            }
 4775            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4776
 4777            (Origin::RightDock, SplitDirection::Left) => {
 4778                if let Some(last_active_pane) = get_last_active_pane() {
 4779                    Some(Target::Pane(last_active_pane))
 4780                } else {
 4781                    try_dock(&self.bottom_dock)
 4782                        .or_else(|| try_dock(&self.left_dock))
 4783                        .or(sidebar_target)
 4784                }
 4785            }
 4786
 4787            _ => None,
 4788        };
 4789
 4790        match target {
 4791            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4792                let pane = pane.read(cx);
 4793                if let Some(item) = pane.active_item() {
 4794                    item.item_focus_handle(cx).focus(window, cx);
 4795                } else {
 4796                    log::error!(
 4797                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4798                    );
 4799                }
 4800            }
 4801            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4802                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4803                window.defer(cx, move |window, cx| {
 4804                    let dock = dock.read(cx);
 4805                    if let Some(panel) = dock.active_panel() {
 4806                        panel.panel_focus_handle(cx).focus(window, cx);
 4807                    } else {
 4808                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4809                    }
 4810                })
 4811            }
 4812            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4813                focus_handle.focus(window, cx);
 4814            }
 4815            None => {}
 4816        }
 4817    }
 4818
 4819    pub fn move_item_to_pane_in_direction(
 4820        &mut self,
 4821        action: &MoveItemToPaneInDirection,
 4822        window: &mut Window,
 4823        cx: &mut Context<Self>,
 4824    ) {
 4825        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4826            Some(destination) => destination,
 4827            None => {
 4828                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4829                    return;
 4830                }
 4831                let new_pane = self.add_pane(window, cx);
 4832                self.center
 4833                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4834                new_pane
 4835            }
 4836        };
 4837
 4838        if action.clone {
 4839            if self
 4840                .active_pane
 4841                .read(cx)
 4842                .active_item()
 4843                .is_some_and(|item| item.can_split(cx))
 4844            {
 4845                clone_active_item(
 4846                    self.database_id(),
 4847                    &self.active_pane,
 4848                    &destination,
 4849                    action.focus,
 4850                    window,
 4851                    cx,
 4852                );
 4853                return;
 4854            }
 4855        }
 4856        move_active_item(
 4857            &self.active_pane,
 4858            &destination,
 4859            action.focus,
 4860            true,
 4861            window,
 4862            cx,
 4863        );
 4864    }
 4865
 4866    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4867        self.center.bounding_box_for_pane(pane)
 4868    }
 4869
 4870    pub fn find_pane_in_direction(
 4871        &mut self,
 4872        direction: SplitDirection,
 4873        cx: &App,
 4874    ) -> Option<Entity<Pane>> {
 4875        self.center
 4876            .find_pane_in_direction(&self.active_pane, direction, cx)
 4877            .cloned()
 4878    }
 4879
 4880    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4881        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4882            self.center.swap(&self.active_pane, &to, cx);
 4883            cx.notify();
 4884        }
 4885    }
 4886
 4887    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4888        if self
 4889            .center
 4890            .move_to_border(&self.active_pane, direction, cx)
 4891            .unwrap()
 4892        {
 4893            cx.notify();
 4894        }
 4895    }
 4896
 4897    pub fn resize_pane(
 4898        &mut self,
 4899        axis: gpui::Axis,
 4900        amount: Pixels,
 4901        window: &mut Window,
 4902        cx: &mut Context<Self>,
 4903    ) {
 4904        let docks = self.all_docks();
 4905        let active_dock = docks
 4906            .into_iter()
 4907            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4908
 4909        if let Some(dock_entity) = active_dock {
 4910            let dock = dock_entity.read(cx);
 4911            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 4912                return;
 4913            };
 4914            match dock.position() {
 4915                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4916                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4917                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4918            }
 4919        } else {
 4920            self.center
 4921                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4922        }
 4923        cx.notify();
 4924    }
 4925
 4926    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4927        self.center.reset_pane_sizes(cx);
 4928        cx.notify();
 4929    }
 4930
 4931    fn handle_pane_focused(
 4932        &mut self,
 4933        pane: Entity<Pane>,
 4934        window: &mut Window,
 4935        cx: &mut Context<Self>,
 4936    ) {
 4937        // This is explicitly hoisted out of the following check for pane identity as
 4938        // terminal panel panes are not registered as a center panes.
 4939        self.status_bar.update(cx, |status_bar, cx| {
 4940            status_bar.set_active_pane(&pane, window, cx);
 4941        });
 4942        if self.active_pane != pane {
 4943            self.set_active_pane(&pane, window, cx);
 4944        }
 4945
 4946        if self.last_active_center_pane.is_none() {
 4947            self.last_active_center_pane = Some(pane.downgrade());
 4948        }
 4949
 4950        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4951        // This prevents the dock from closing when focus events fire during window activation.
 4952        // We also preserve any dock whose active panel itself has focus — this covers
 4953        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4954        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4955            let dock_read = dock.read(cx);
 4956            if let Some(panel) = dock_read.active_panel() {
 4957                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4958                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4959                {
 4960                    return Some(dock_read.position());
 4961                }
 4962            }
 4963            None
 4964        });
 4965
 4966        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4967        if pane.read(cx).is_zoomed() {
 4968            self.zoomed = Some(pane.downgrade().into());
 4969        } else {
 4970            self.zoomed = None;
 4971        }
 4972        self.zoomed_position = None;
 4973        cx.emit(Event::ZoomChanged);
 4974        self.update_active_view_for_followers(window, cx);
 4975        pane.update(cx, |pane, _| {
 4976            pane.track_alternate_file_items();
 4977        });
 4978
 4979        cx.notify();
 4980    }
 4981
 4982    fn set_active_pane(
 4983        &mut self,
 4984        pane: &Entity<Pane>,
 4985        window: &mut Window,
 4986        cx: &mut Context<Self>,
 4987    ) {
 4988        self.active_pane = pane.clone();
 4989        self.active_item_path_changed(true, window, cx);
 4990        self.last_active_center_pane = Some(pane.downgrade());
 4991    }
 4992
 4993    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4994        self.update_active_view_for_followers(window, cx);
 4995    }
 4996
 4997    fn handle_pane_event(
 4998        &mut self,
 4999        pane: &Entity<Pane>,
 5000        event: &pane::Event,
 5001        window: &mut Window,
 5002        cx: &mut Context<Self>,
 5003    ) {
 5004        let mut serialize_workspace = true;
 5005        match event {
 5006            pane::Event::AddItem { item } => {
 5007                item.added_to_pane(self, pane.clone(), window, cx);
 5008                cx.emit(Event::ItemAdded {
 5009                    item: item.boxed_clone(),
 5010                });
 5011            }
 5012            pane::Event::Split { direction, mode } => {
 5013                match mode {
 5014                    SplitMode::ClonePane => {
 5015                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5016                            .detach();
 5017                    }
 5018                    SplitMode::EmptyPane => {
 5019                        self.split_pane(pane.clone(), *direction, window, cx);
 5020                    }
 5021                    SplitMode::MovePane => {
 5022                        self.split_and_move(pane.clone(), *direction, window, cx);
 5023                    }
 5024                };
 5025            }
 5026            pane::Event::JoinIntoNext => {
 5027                self.join_pane_into_next(pane.clone(), window, cx);
 5028            }
 5029            pane::Event::JoinAll => {
 5030                self.join_all_panes(window, cx);
 5031            }
 5032            pane::Event::Remove { focus_on_pane } => {
 5033                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5034            }
 5035            pane::Event::ActivateItem {
 5036                local,
 5037                focus_changed,
 5038            } => {
 5039                window.invalidate_character_coordinates();
 5040
 5041                pane.update(cx, |pane, _| {
 5042                    pane.track_alternate_file_items();
 5043                });
 5044                if *local {
 5045                    self.unfollow_in_pane(pane, window, cx);
 5046                }
 5047                serialize_workspace = *focus_changed || pane != self.active_pane();
 5048                if pane == self.active_pane() {
 5049                    self.active_item_path_changed(*focus_changed, window, cx);
 5050                    self.update_active_view_for_followers(window, cx);
 5051                } else if *local {
 5052                    self.set_active_pane(pane, window, cx);
 5053                }
 5054            }
 5055            pane::Event::UserSavedItem { item, save_intent } => {
 5056                cx.emit(Event::UserSavedItem {
 5057                    pane: pane.downgrade(),
 5058                    item: item.boxed_clone(),
 5059                    save_intent: *save_intent,
 5060                });
 5061                serialize_workspace = false;
 5062            }
 5063            pane::Event::ChangeItemTitle => {
 5064                if *pane == self.active_pane {
 5065                    self.active_item_path_changed(false, window, cx);
 5066                }
 5067                serialize_workspace = false;
 5068            }
 5069            pane::Event::RemovedItem { item } => {
 5070                cx.emit(Event::ActiveItemChanged);
 5071                self.update_window_edited(window, cx);
 5072                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5073                    && entry.get().entity_id() == pane.entity_id()
 5074                {
 5075                    entry.remove();
 5076                }
 5077                cx.emit(Event::ItemRemoved {
 5078                    item_id: item.item_id(),
 5079                });
 5080            }
 5081            pane::Event::Focus => {
 5082                window.invalidate_character_coordinates();
 5083                self.handle_pane_focused(pane.clone(), window, cx);
 5084            }
 5085            pane::Event::ZoomIn => {
 5086                if *pane == self.active_pane {
 5087                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5088                    if pane.read(cx).has_focus(window, cx) {
 5089                        self.zoomed = Some(pane.downgrade().into());
 5090                        self.zoomed_position = None;
 5091                        cx.emit(Event::ZoomChanged);
 5092                    }
 5093                    cx.notify();
 5094                }
 5095            }
 5096            pane::Event::ZoomOut => {
 5097                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5098                if self.zoomed_position.is_none() {
 5099                    self.zoomed = None;
 5100                    cx.emit(Event::ZoomChanged);
 5101                }
 5102                cx.notify();
 5103            }
 5104            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5105        }
 5106
 5107        if serialize_workspace {
 5108            self.serialize_workspace(window, cx);
 5109        }
 5110    }
 5111
 5112    pub fn unfollow_in_pane(
 5113        &mut self,
 5114        pane: &Entity<Pane>,
 5115        window: &mut Window,
 5116        cx: &mut Context<Workspace>,
 5117    ) -> Option<CollaboratorId> {
 5118        let leader_id = self.leader_for_pane(pane)?;
 5119        self.unfollow(leader_id, window, cx);
 5120        Some(leader_id)
 5121    }
 5122
 5123    pub fn split_pane(
 5124        &mut self,
 5125        pane_to_split: Entity<Pane>,
 5126        split_direction: SplitDirection,
 5127        window: &mut Window,
 5128        cx: &mut Context<Self>,
 5129    ) -> Entity<Pane> {
 5130        let new_pane = self.add_pane(window, cx);
 5131        self.center
 5132            .split(&pane_to_split, &new_pane, split_direction, cx);
 5133        cx.notify();
 5134        new_pane
 5135    }
 5136
 5137    pub fn split_and_move(
 5138        &mut self,
 5139        pane: Entity<Pane>,
 5140        direction: SplitDirection,
 5141        window: &mut Window,
 5142        cx: &mut Context<Self>,
 5143    ) {
 5144        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5145            return;
 5146        };
 5147        let new_pane = self.add_pane(window, cx);
 5148        new_pane.update(cx, |pane, cx| {
 5149            pane.add_item(item, true, true, None, window, cx)
 5150        });
 5151        self.center.split(&pane, &new_pane, direction, cx);
 5152        cx.notify();
 5153    }
 5154
 5155    pub fn split_and_clone(
 5156        &mut self,
 5157        pane: Entity<Pane>,
 5158        direction: SplitDirection,
 5159        window: &mut Window,
 5160        cx: &mut Context<Self>,
 5161    ) -> Task<Option<Entity<Pane>>> {
 5162        let Some(item) = pane.read(cx).active_item() else {
 5163            return Task::ready(None);
 5164        };
 5165        if !item.can_split(cx) {
 5166            return Task::ready(None);
 5167        }
 5168        let task = item.clone_on_split(self.database_id(), window, cx);
 5169        cx.spawn_in(window, async move |this, cx| {
 5170            if let Some(clone) = task.await {
 5171                this.update_in(cx, |this, window, cx| {
 5172                    let new_pane = this.add_pane(window, cx);
 5173                    let nav_history = pane.read(cx).fork_nav_history();
 5174                    new_pane.update(cx, |pane, cx| {
 5175                        pane.set_nav_history(nav_history, cx);
 5176                        pane.add_item(clone, true, true, None, window, cx)
 5177                    });
 5178                    this.center.split(&pane, &new_pane, direction, cx);
 5179                    cx.notify();
 5180                    new_pane
 5181                })
 5182                .ok()
 5183            } else {
 5184                None
 5185            }
 5186        })
 5187    }
 5188
 5189    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5190        let active_item = self.active_pane.read(cx).active_item();
 5191        for pane in &self.panes {
 5192            join_pane_into_active(&self.active_pane, pane, window, cx);
 5193        }
 5194        if let Some(active_item) = active_item {
 5195            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5196        }
 5197        cx.notify();
 5198    }
 5199
 5200    pub fn join_pane_into_next(
 5201        &mut self,
 5202        pane: Entity<Pane>,
 5203        window: &mut Window,
 5204        cx: &mut Context<Self>,
 5205    ) {
 5206        let next_pane = self
 5207            .find_pane_in_direction(SplitDirection::Right, cx)
 5208            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5209            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5210            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5211        let Some(next_pane) = next_pane else {
 5212            return;
 5213        };
 5214        move_all_items(&pane, &next_pane, window, cx);
 5215        cx.notify();
 5216    }
 5217
 5218    fn remove_pane(
 5219        &mut self,
 5220        pane: Entity<Pane>,
 5221        focus_on: Option<Entity<Pane>>,
 5222        window: &mut Window,
 5223        cx: &mut Context<Self>,
 5224    ) {
 5225        if self.center.remove(&pane, cx).unwrap() {
 5226            self.force_remove_pane(&pane, &focus_on, window, cx);
 5227            self.unfollow_in_pane(&pane, window, cx);
 5228            self.last_leaders_by_pane.remove(&pane.downgrade());
 5229            for removed_item in pane.read(cx).items() {
 5230                self.panes_by_item.remove(&removed_item.item_id());
 5231            }
 5232
 5233            cx.notify();
 5234        } else {
 5235            self.active_item_path_changed(true, window, cx);
 5236        }
 5237        cx.emit(Event::PaneRemoved);
 5238    }
 5239
 5240    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5241        &mut self.panes
 5242    }
 5243
 5244    pub fn panes(&self) -> &[Entity<Pane>] {
 5245        &self.panes
 5246    }
 5247
 5248    pub fn active_pane(&self) -> &Entity<Pane> {
 5249        &self.active_pane
 5250    }
 5251
 5252    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5253        for dock in self.all_docks() {
 5254            if dock.focus_handle(cx).contains_focused(window, cx)
 5255                && let Some(pane) = dock
 5256                    .read(cx)
 5257                    .active_panel()
 5258                    .and_then(|panel| panel.pane(cx))
 5259            {
 5260                return pane;
 5261            }
 5262        }
 5263        self.active_pane().clone()
 5264    }
 5265
 5266    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5267        self.find_pane_in_direction(SplitDirection::Right, cx)
 5268            .unwrap_or_else(|| {
 5269                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5270            })
 5271    }
 5272
 5273    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5274        self.pane_for_item_id(handle.item_id())
 5275    }
 5276
 5277    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5278        let weak_pane = self.panes_by_item.get(&item_id)?;
 5279        weak_pane.upgrade()
 5280    }
 5281
 5282    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5283        self.panes
 5284            .iter()
 5285            .find(|pane| pane.entity_id() == entity_id)
 5286            .cloned()
 5287    }
 5288
 5289    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5290        self.follower_states.retain(|leader_id, state| {
 5291            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5292                for item in state.items_by_leader_view_id.values() {
 5293                    item.view.set_leader_id(None, window, cx);
 5294                }
 5295                false
 5296            } else {
 5297                true
 5298            }
 5299        });
 5300        cx.notify();
 5301    }
 5302
 5303    pub fn start_following(
 5304        &mut self,
 5305        leader_id: impl Into<CollaboratorId>,
 5306        window: &mut Window,
 5307        cx: &mut Context<Self>,
 5308    ) -> Option<Task<Result<()>>> {
 5309        let leader_id = leader_id.into();
 5310        let pane = self.active_pane().clone();
 5311
 5312        self.last_leaders_by_pane
 5313            .insert(pane.downgrade(), leader_id);
 5314        self.unfollow(leader_id, window, cx);
 5315        self.unfollow_in_pane(&pane, window, cx);
 5316        self.follower_states.insert(
 5317            leader_id,
 5318            FollowerState {
 5319                center_pane: pane.clone(),
 5320                dock_pane: None,
 5321                active_view_id: None,
 5322                items_by_leader_view_id: Default::default(),
 5323            },
 5324        );
 5325        cx.notify();
 5326
 5327        match leader_id {
 5328            CollaboratorId::PeerId(leader_peer_id) => {
 5329                let room_id = self.active_call()?.room_id(cx)?;
 5330                let project_id = self.project.read(cx).remote_id();
 5331                let request = self.app_state.client.request(proto::Follow {
 5332                    room_id,
 5333                    project_id,
 5334                    leader_id: Some(leader_peer_id),
 5335                });
 5336
 5337                Some(cx.spawn_in(window, async move |this, cx| {
 5338                    let response = request.await?;
 5339                    this.update(cx, |this, _| {
 5340                        let state = this
 5341                            .follower_states
 5342                            .get_mut(&leader_id)
 5343                            .context("following interrupted")?;
 5344                        state.active_view_id = response
 5345                            .active_view
 5346                            .as_ref()
 5347                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5348                        anyhow::Ok(())
 5349                    })??;
 5350                    if let Some(view) = response.active_view {
 5351                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5352                    }
 5353                    this.update_in(cx, |this, window, cx| {
 5354                        this.leader_updated(leader_id, window, cx)
 5355                    })?;
 5356                    Ok(())
 5357                }))
 5358            }
 5359            CollaboratorId::Agent => {
 5360                self.leader_updated(leader_id, window, cx)?;
 5361                Some(Task::ready(Ok(())))
 5362            }
 5363        }
 5364    }
 5365
 5366    pub fn follow_next_collaborator(
 5367        &mut self,
 5368        _: &FollowNextCollaborator,
 5369        window: &mut Window,
 5370        cx: &mut Context<Self>,
 5371    ) {
 5372        let collaborators = self.project.read(cx).collaborators();
 5373        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5374            let mut collaborators = collaborators.keys().copied();
 5375            for peer_id in collaborators.by_ref() {
 5376                if CollaboratorId::PeerId(peer_id) == leader_id {
 5377                    break;
 5378                }
 5379            }
 5380            collaborators.next().map(CollaboratorId::PeerId)
 5381        } else if let Some(last_leader_id) =
 5382            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5383        {
 5384            match last_leader_id {
 5385                CollaboratorId::PeerId(peer_id) => {
 5386                    if collaborators.contains_key(peer_id) {
 5387                        Some(*last_leader_id)
 5388                    } else {
 5389                        None
 5390                    }
 5391                }
 5392                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5393            }
 5394        } else {
 5395            None
 5396        };
 5397
 5398        let pane = self.active_pane.clone();
 5399        let Some(leader_id) = next_leader_id.or_else(|| {
 5400            Some(CollaboratorId::PeerId(
 5401                collaborators.keys().copied().next()?,
 5402            ))
 5403        }) else {
 5404            return;
 5405        };
 5406        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5407            return;
 5408        }
 5409        if let Some(task) = self.start_following(leader_id, window, cx) {
 5410            task.detach_and_log_err(cx)
 5411        }
 5412    }
 5413
 5414    pub fn follow(
 5415        &mut self,
 5416        leader_id: impl Into<CollaboratorId>,
 5417        window: &mut Window,
 5418        cx: &mut Context<Self>,
 5419    ) {
 5420        let leader_id = leader_id.into();
 5421
 5422        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5423            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5424                return;
 5425            };
 5426            let Some(remote_participant) =
 5427                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5428            else {
 5429                return;
 5430            };
 5431
 5432            let project = self.project.read(cx);
 5433
 5434            let other_project_id = match remote_participant.location {
 5435                ParticipantLocation::External => None,
 5436                ParticipantLocation::UnsharedProject => None,
 5437                ParticipantLocation::SharedProject { project_id } => {
 5438                    if Some(project_id) == project.remote_id() {
 5439                        None
 5440                    } else {
 5441                        Some(project_id)
 5442                    }
 5443                }
 5444            };
 5445
 5446            // if they are active in another project, follow there.
 5447            if let Some(project_id) = other_project_id {
 5448                let app_state = self.app_state.clone();
 5449                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5450                    .detach_and_log_err(cx);
 5451            }
 5452        }
 5453
 5454        // if you're already following, find the right pane and focus it.
 5455        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5456            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5457
 5458            return;
 5459        }
 5460
 5461        // Otherwise, follow.
 5462        if let Some(task) = self.start_following(leader_id, window, cx) {
 5463            task.detach_and_log_err(cx)
 5464        }
 5465    }
 5466
 5467    pub fn unfollow(
 5468        &mut self,
 5469        leader_id: impl Into<CollaboratorId>,
 5470        window: &mut Window,
 5471        cx: &mut Context<Self>,
 5472    ) -> Option<()> {
 5473        cx.notify();
 5474
 5475        let leader_id = leader_id.into();
 5476        let state = self.follower_states.remove(&leader_id)?;
 5477        for (_, item) in state.items_by_leader_view_id {
 5478            item.view.set_leader_id(None, window, cx);
 5479        }
 5480
 5481        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5482            let project_id = self.project.read(cx).remote_id();
 5483            let room_id = self.active_call()?.room_id(cx)?;
 5484            self.app_state
 5485                .client
 5486                .send(proto::Unfollow {
 5487                    room_id,
 5488                    project_id,
 5489                    leader_id: Some(leader_peer_id),
 5490                })
 5491                .log_err();
 5492        }
 5493
 5494        Some(())
 5495    }
 5496
 5497    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5498        self.follower_states.contains_key(&id.into())
 5499    }
 5500
 5501    fn active_item_path_changed(
 5502        &mut self,
 5503        focus_changed: bool,
 5504        window: &mut Window,
 5505        cx: &mut Context<Self>,
 5506    ) {
 5507        cx.emit(Event::ActiveItemChanged);
 5508        let active_entry = self.active_project_path(cx);
 5509        self.project.update(cx, |project, cx| {
 5510            project.set_active_path(active_entry.clone(), cx)
 5511        });
 5512
 5513        if focus_changed && let Some(project_path) = &active_entry {
 5514            let git_store_entity = self.project.read(cx).git_store().clone();
 5515            git_store_entity.update(cx, |git_store, cx| {
 5516                git_store.set_active_repo_for_path(project_path, cx);
 5517            });
 5518        }
 5519
 5520        self.update_window_title(window, cx);
 5521    }
 5522
 5523    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5524        let project = self.project().read(cx);
 5525        let mut title = String::new();
 5526
 5527        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5528            let name = {
 5529                let settings_location = SettingsLocation {
 5530                    worktree_id: worktree.read(cx).id(),
 5531                    path: RelPath::empty(),
 5532                };
 5533
 5534                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5535                match &settings.project_name {
 5536                    Some(name) => name.as_str(),
 5537                    None => worktree.read(cx).root_name_str(),
 5538                }
 5539            };
 5540            if i > 0 {
 5541                title.push_str(", ");
 5542            }
 5543            title.push_str(name);
 5544        }
 5545
 5546        if title.is_empty() {
 5547            title = "empty project".to_string();
 5548        }
 5549
 5550        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5551            let filename = path.path.file_name().or_else(|| {
 5552                Some(
 5553                    project
 5554                        .worktree_for_id(path.worktree_id, cx)?
 5555                        .read(cx)
 5556                        .root_name_str(),
 5557                )
 5558            });
 5559
 5560            if let Some(filename) = filename {
 5561                title.push_str("");
 5562                title.push_str(filename.as_ref());
 5563            }
 5564        }
 5565
 5566        if project.is_via_collab() {
 5567            title.push_str("");
 5568        } else if project.is_shared() {
 5569            title.push_str("");
 5570        }
 5571
 5572        if let Some(last_title) = self.last_window_title.as_ref()
 5573            && &title == last_title
 5574        {
 5575            return;
 5576        }
 5577        window.set_window_title(&title);
 5578        SystemWindowTabController::update_tab_title(
 5579            cx,
 5580            window.window_handle().window_id(),
 5581            SharedString::from(&title),
 5582        );
 5583        self.last_window_title = Some(title);
 5584    }
 5585
 5586    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5587        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5588        if is_edited != self.window_edited {
 5589            self.window_edited = is_edited;
 5590            window.set_window_edited(self.window_edited)
 5591        }
 5592    }
 5593
 5594    fn update_item_dirty_state(
 5595        &mut self,
 5596        item: &dyn ItemHandle,
 5597        window: &mut Window,
 5598        cx: &mut App,
 5599    ) {
 5600        let is_dirty = item.is_dirty(cx);
 5601        let item_id = item.item_id();
 5602        let was_dirty = self.dirty_items.contains_key(&item_id);
 5603        if is_dirty == was_dirty {
 5604            return;
 5605        }
 5606        if was_dirty {
 5607            self.dirty_items.remove(&item_id);
 5608            self.update_window_edited(window, cx);
 5609            return;
 5610        }
 5611
 5612        let workspace = self.weak_handle();
 5613        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5614            return;
 5615        };
 5616        let on_release_callback = Box::new(move |cx: &mut App| {
 5617            window_handle
 5618                .update(cx, |_, window, cx| {
 5619                    workspace
 5620                        .update(cx, |workspace, cx| {
 5621                            workspace.dirty_items.remove(&item_id);
 5622                            workspace.update_window_edited(window, cx)
 5623                        })
 5624                        .ok();
 5625                })
 5626                .ok();
 5627        });
 5628
 5629        let s = item.on_release(cx, on_release_callback);
 5630        self.dirty_items.insert(item_id, s);
 5631        self.update_window_edited(window, cx);
 5632    }
 5633
 5634    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5635        if self.notifications.is_empty() {
 5636            None
 5637        } else {
 5638            Some(
 5639                div()
 5640                    .absolute()
 5641                    .right_3()
 5642                    .bottom_3()
 5643                    .w_112()
 5644                    .h_full()
 5645                    .flex()
 5646                    .flex_col()
 5647                    .justify_end()
 5648                    .gap_2()
 5649                    .children(
 5650                        self.notifications
 5651                            .iter()
 5652                            .map(|(_, notification)| notification.clone().into_any()),
 5653                    ),
 5654            )
 5655        }
 5656    }
 5657
 5658    // RPC handlers
 5659
 5660    fn active_view_for_follower(
 5661        &self,
 5662        follower_project_id: Option<u64>,
 5663        window: &mut Window,
 5664        cx: &mut Context<Self>,
 5665    ) -> Option<proto::View> {
 5666        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5667        let item = item?;
 5668        let leader_id = self
 5669            .pane_for(&*item)
 5670            .and_then(|pane| self.leader_for_pane(&pane));
 5671        let leader_peer_id = match leader_id {
 5672            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5673            Some(CollaboratorId::Agent) | None => None,
 5674        };
 5675
 5676        let item_handle = item.to_followable_item_handle(cx)?;
 5677        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5678        let variant = item_handle.to_state_proto(window, cx)?;
 5679
 5680        if item_handle.is_project_item(window, cx)
 5681            && (follower_project_id.is_none()
 5682                || follower_project_id != self.project.read(cx).remote_id())
 5683        {
 5684            return None;
 5685        }
 5686
 5687        Some(proto::View {
 5688            id: id.to_proto(),
 5689            leader_id: leader_peer_id,
 5690            variant: Some(variant),
 5691            panel_id: panel_id.map(|id| id as i32),
 5692        })
 5693    }
 5694
 5695    fn handle_follow(
 5696        &mut self,
 5697        follower_project_id: Option<u64>,
 5698        window: &mut Window,
 5699        cx: &mut Context<Self>,
 5700    ) -> proto::FollowResponse {
 5701        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5702
 5703        cx.notify();
 5704        proto::FollowResponse {
 5705            views: active_view.iter().cloned().collect(),
 5706            active_view,
 5707        }
 5708    }
 5709
 5710    fn handle_update_followers(
 5711        &mut self,
 5712        leader_id: PeerId,
 5713        message: proto::UpdateFollowers,
 5714        _window: &mut Window,
 5715        _cx: &mut Context<Self>,
 5716    ) {
 5717        self.leader_updates_tx
 5718            .unbounded_send((leader_id, message))
 5719            .ok();
 5720    }
 5721
 5722    async fn process_leader_update(
 5723        this: &WeakEntity<Self>,
 5724        leader_id: PeerId,
 5725        update: proto::UpdateFollowers,
 5726        cx: &mut AsyncWindowContext,
 5727    ) -> Result<()> {
 5728        match update.variant.context("invalid update")? {
 5729            proto::update_followers::Variant::CreateView(view) => {
 5730                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5731                let should_add_view = this.update(cx, |this, _| {
 5732                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5733                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5734                    } else {
 5735                        anyhow::Ok(false)
 5736                    }
 5737                })??;
 5738
 5739                if should_add_view {
 5740                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5741                }
 5742            }
 5743            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5744                let should_add_view = this.update(cx, |this, _| {
 5745                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5746                        state.active_view_id = update_active_view
 5747                            .view
 5748                            .as_ref()
 5749                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5750
 5751                        if state.active_view_id.is_some_and(|view_id| {
 5752                            !state.items_by_leader_view_id.contains_key(&view_id)
 5753                        }) {
 5754                            anyhow::Ok(true)
 5755                        } else {
 5756                            anyhow::Ok(false)
 5757                        }
 5758                    } else {
 5759                        anyhow::Ok(false)
 5760                    }
 5761                })??;
 5762
 5763                if should_add_view && let Some(view) = update_active_view.view {
 5764                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5765                }
 5766            }
 5767            proto::update_followers::Variant::UpdateView(update_view) => {
 5768                let variant = update_view.variant.context("missing update view variant")?;
 5769                let id = update_view.id.context("missing update view id")?;
 5770                let mut tasks = Vec::new();
 5771                this.update_in(cx, |this, window, cx| {
 5772                    let project = this.project.clone();
 5773                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5774                        let view_id = ViewId::from_proto(id.clone())?;
 5775                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5776                            tasks.push(item.view.apply_update_proto(
 5777                                &project,
 5778                                variant.clone(),
 5779                                window,
 5780                                cx,
 5781                            ));
 5782                        }
 5783                    }
 5784                    anyhow::Ok(())
 5785                })??;
 5786                try_join_all(tasks).await.log_err();
 5787            }
 5788        }
 5789        this.update_in(cx, |this, window, cx| {
 5790            this.leader_updated(leader_id, window, cx)
 5791        })?;
 5792        Ok(())
 5793    }
 5794
 5795    async fn add_view_from_leader(
 5796        this: WeakEntity<Self>,
 5797        leader_id: PeerId,
 5798        view: &proto::View,
 5799        cx: &mut AsyncWindowContext,
 5800    ) -> Result<()> {
 5801        let this = this.upgrade().context("workspace dropped")?;
 5802
 5803        let Some(id) = view.id.clone() else {
 5804            anyhow::bail!("no id for view");
 5805        };
 5806        let id = ViewId::from_proto(id)?;
 5807        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5808
 5809        let pane = this.update(cx, |this, _cx| {
 5810            let state = this
 5811                .follower_states
 5812                .get(&leader_id.into())
 5813                .context("stopped following")?;
 5814            anyhow::Ok(state.pane().clone())
 5815        })?;
 5816        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5817            let client = this.read(cx).client().clone();
 5818            pane.items().find_map(|item| {
 5819                let item = item.to_followable_item_handle(cx)?;
 5820                if item.remote_id(&client, window, cx) == Some(id) {
 5821                    Some(item)
 5822                } else {
 5823                    None
 5824                }
 5825            })
 5826        })?;
 5827        let item = if let Some(existing_item) = existing_item {
 5828            existing_item
 5829        } else {
 5830            let variant = view.variant.clone();
 5831            anyhow::ensure!(variant.is_some(), "missing view variant");
 5832
 5833            let task = cx.update(|window, cx| {
 5834                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5835            })?;
 5836
 5837            let Some(task) = task else {
 5838                anyhow::bail!(
 5839                    "failed to construct view from leader (maybe from a different version of zed?)"
 5840                );
 5841            };
 5842
 5843            let mut new_item = task.await?;
 5844            pane.update_in(cx, |pane, window, cx| {
 5845                let mut item_to_remove = None;
 5846                for (ix, item) in pane.items().enumerate() {
 5847                    if let Some(item) = item.to_followable_item_handle(cx) {
 5848                        match new_item.dedup(item.as_ref(), window, cx) {
 5849                            Some(item::Dedup::KeepExisting) => {
 5850                                new_item =
 5851                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5852                                break;
 5853                            }
 5854                            Some(item::Dedup::ReplaceExisting) => {
 5855                                item_to_remove = Some((ix, item.item_id()));
 5856                                break;
 5857                            }
 5858                            None => {}
 5859                        }
 5860                    }
 5861                }
 5862
 5863                if let Some((ix, id)) = item_to_remove {
 5864                    pane.remove_item(id, false, false, window, cx);
 5865                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5866                }
 5867            })?;
 5868
 5869            new_item
 5870        };
 5871
 5872        this.update_in(cx, |this, window, cx| {
 5873            let state = this.follower_states.get_mut(&leader_id.into())?;
 5874            item.set_leader_id(Some(leader_id.into()), window, cx);
 5875            state.items_by_leader_view_id.insert(
 5876                id,
 5877                FollowerView {
 5878                    view: item,
 5879                    location: panel_id,
 5880                },
 5881            );
 5882
 5883            Some(())
 5884        })
 5885        .context("no follower state")?;
 5886
 5887        Ok(())
 5888    }
 5889
 5890    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5891        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5892            return;
 5893        };
 5894
 5895        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5896            let buffer_entity_id = agent_location.buffer.entity_id();
 5897            let view_id = ViewId {
 5898                creator: CollaboratorId::Agent,
 5899                id: buffer_entity_id.as_u64(),
 5900            };
 5901            follower_state.active_view_id = Some(view_id);
 5902
 5903            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5904                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5905                hash_map::Entry::Vacant(entry) => {
 5906                    let existing_view =
 5907                        follower_state
 5908                            .center_pane
 5909                            .read(cx)
 5910                            .items()
 5911                            .find_map(|item| {
 5912                                let item = item.to_followable_item_handle(cx)?;
 5913                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5914                                    && item.project_item_model_ids(cx).as_slice()
 5915                                        == [buffer_entity_id]
 5916                                {
 5917                                    Some(item)
 5918                                } else {
 5919                                    None
 5920                                }
 5921                            });
 5922                    let view = existing_view.or_else(|| {
 5923                        agent_location.buffer.upgrade().and_then(|buffer| {
 5924                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5925                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5926                            })?
 5927                            .to_followable_item_handle(cx)
 5928                        })
 5929                    });
 5930
 5931                    view.map(|view| {
 5932                        entry.insert(FollowerView {
 5933                            view,
 5934                            location: None,
 5935                        })
 5936                    })
 5937                }
 5938            };
 5939
 5940            if let Some(item) = item {
 5941                item.view
 5942                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5943                item.view
 5944                    .update_agent_location(agent_location.position, window, cx);
 5945            }
 5946        } else {
 5947            follower_state.active_view_id = None;
 5948        }
 5949
 5950        self.leader_updated(CollaboratorId::Agent, window, cx);
 5951    }
 5952
 5953    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5954        let mut is_project_item = true;
 5955        let mut update = proto::UpdateActiveView::default();
 5956        if window.is_window_active() {
 5957            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5958
 5959            if let Some(item) = active_item
 5960                && item.item_focus_handle(cx).contains_focused(window, cx)
 5961            {
 5962                let leader_id = self
 5963                    .pane_for(&*item)
 5964                    .and_then(|pane| self.leader_for_pane(&pane));
 5965                let leader_peer_id = match leader_id {
 5966                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5967                    Some(CollaboratorId::Agent) | None => None,
 5968                };
 5969
 5970                if let Some(item) = item.to_followable_item_handle(cx) {
 5971                    let id = item
 5972                        .remote_id(&self.app_state.client, window, cx)
 5973                        .map(|id| id.to_proto());
 5974
 5975                    if let Some(id) = id
 5976                        && let Some(variant) = item.to_state_proto(window, cx)
 5977                    {
 5978                        let view = Some(proto::View {
 5979                            id,
 5980                            leader_id: leader_peer_id,
 5981                            variant: Some(variant),
 5982                            panel_id: panel_id.map(|id| id as i32),
 5983                        });
 5984
 5985                        is_project_item = item.is_project_item(window, cx);
 5986                        update = proto::UpdateActiveView { view };
 5987                    };
 5988                }
 5989            }
 5990        }
 5991
 5992        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5993        if active_view_id != self.last_active_view_id.as_ref() {
 5994            self.last_active_view_id = active_view_id.cloned();
 5995            self.update_followers(
 5996                is_project_item,
 5997                proto::update_followers::Variant::UpdateActiveView(update),
 5998                window,
 5999                cx,
 6000            );
 6001        }
 6002    }
 6003
 6004    fn active_item_for_followers(
 6005        &self,
 6006        window: &mut Window,
 6007        cx: &mut App,
 6008    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6009        let mut active_item = None;
 6010        let mut panel_id = None;
 6011        for dock in self.all_docks() {
 6012            if dock.focus_handle(cx).contains_focused(window, cx)
 6013                && let Some(panel) = dock.read(cx).active_panel()
 6014                && let Some(pane) = panel.pane(cx)
 6015                && let Some(item) = pane.read(cx).active_item()
 6016            {
 6017                active_item = Some(item);
 6018                panel_id = panel.remote_id();
 6019                break;
 6020            }
 6021        }
 6022
 6023        if active_item.is_none() {
 6024            active_item = self.active_pane().read(cx).active_item();
 6025        }
 6026        (active_item, panel_id)
 6027    }
 6028
 6029    fn update_followers(
 6030        &self,
 6031        project_only: bool,
 6032        update: proto::update_followers::Variant,
 6033        _: &mut Window,
 6034        cx: &mut App,
 6035    ) -> Option<()> {
 6036        // If this update only applies to for followers in the current project,
 6037        // then skip it unless this project is shared. If it applies to all
 6038        // followers, regardless of project, then set `project_id` to none,
 6039        // indicating that it goes to all followers.
 6040        let project_id = if project_only {
 6041            Some(self.project.read(cx).remote_id()?)
 6042        } else {
 6043            None
 6044        };
 6045        self.app_state().workspace_store.update(cx, |store, cx| {
 6046            store.update_followers(project_id, update, cx)
 6047        })
 6048    }
 6049
 6050    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6051        self.follower_states.iter().find_map(|(leader_id, state)| {
 6052            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6053                Some(*leader_id)
 6054            } else {
 6055                None
 6056            }
 6057        })
 6058    }
 6059
 6060    fn leader_updated(
 6061        &mut self,
 6062        leader_id: impl Into<CollaboratorId>,
 6063        window: &mut Window,
 6064        cx: &mut Context<Self>,
 6065    ) -> Option<Box<dyn ItemHandle>> {
 6066        cx.notify();
 6067
 6068        let leader_id = leader_id.into();
 6069        let (panel_id, item) = match leader_id {
 6070            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6071            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6072        };
 6073
 6074        let state = self.follower_states.get(&leader_id)?;
 6075        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6076        let pane;
 6077        if let Some(panel_id) = panel_id {
 6078            pane = self
 6079                .activate_panel_for_proto_id(panel_id, window, cx)?
 6080                .pane(cx)?;
 6081            let state = self.follower_states.get_mut(&leader_id)?;
 6082            state.dock_pane = Some(pane.clone());
 6083        } else {
 6084            pane = state.center_pane.clone();
 6085            let state = self.follower_states.get_mut(&leader_id)?;
 6086            if let Some(dock_pane) = state.dock_pane.take() {
 6087                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6088            }
 6089        }
 6090
 6091        pane.update(cx, |pane, cx| {
 6092            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6093            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6094                pane.activate_item(index, false, false, window, cx);
 6095            } else {
 6096                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6097            }
 6098
 6099            if focus_active_item {
 6100                pane.focus_active_item(window, cx)
 6101            }
 6102        });
 6103
 6104        Some(item)
 6105    }
 6106
 6107    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6108        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6109        let active_view_id = state.active_view_id?;
 6110        Some(
 6111            state
 6112                .items_by_leader_view_id
 6113                .get(&active_view_id)?
 6114                .view
 6115                .boxed_clone(),
 6116        )
 6117    }
 6118
 6119    fn active_item_for_peer(
 6120        &self,
 6121        peer_id: PeerId,
 6122        window: &mut Window,
 6123        cx: &mut Context<Self>,
 6124    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6125        let call = self.active_call()?;
 6126        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6127        let leader_in_this_app;
 6128        let leader_in_this_project;
 6129        match participant.location {
 6130            ParticipantLocation::SharedProject { project_id } => {
 6131                leader_in_this_app = true;
 6132                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6133            }
 6134            ParticipantLocation::UnsharedProject => {
 6135                leader_in_this_app = true;
 6136                leader_in_this_project = false;
 6137            }
 6138            ParticipantLocation::External => {
 6139                leader_in_this_app = false;
 6140                leader_in_this_project = false;
 6141            }
 6142        };
 6143        let state = self.follower_states.get(&peer_id.into())?;
 6144        let mut item_to_activate = None;
 6145        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6146            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6147                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6148            {
 6149                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6150            }
 6151        } else if let Some(shared_screen) =
 6152            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6153        {
 6154            item_to_activate = Some((None, Box::new(shared_screen)));
 6155        }
 6156        item_to_activate
 6157    }
 6158
 6159    fn shared_screen_for_peer(
 6160        &self,
 6161        peer_id: PeerId,
 6162        pane: &Entity<Pane>,
 6163        window: &mut Window,
 6164        cx: &mut App,
 6165    ) -> Option<Entity<SharedScreen>> {
 6166        self.active_call()?
 6167            .create_shared_screen(peer_id, pane, window, cx)
 6168    }
 6169
 6170    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6171        if window.is_window_active() {
 6172            self.update_active_view_for_followers(window, cx);
 6173
 6174            if let Some(database_id) = self.database_id {
 6175                let db = WorkspaceDb::global(cx);
 6176                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6177                    .detach();
 6178            }
 6179        } else {
 6180            for pane in &self.panes {
 6181                pane.update(cx, |pane, cx| {
 6182                    if let Some(item) = pane.active_item() {
 6183                        item.workspace_deactivated(window, cx);
 6184                    }
 6185                    for item in pane.items() {
 6186                        if matches!(
 6187                            item.workspace_settings(cx).autosave,
 6188                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6189                        ) {
 6190                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6191                                .detach_and_log_err(cx);
 6192                        }
 6193                    }
 6194                });
 6195            }
 6196        }
 6197    }
 6198
 6199    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6200        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6201    }
 6202
 6203    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6204        self.active_call.as_ref().map(|(call, _)| call.clone())
 6205    }
 6206
 6207    fn on_active_call_event(
 6208        &mut self,
 6209        event: &ActiveCallEvent,
 6210        window: &mut Window,
 6211        cx: &mut Context<Self>,
 6212    ) {
 6213        match event {
 6214            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6215            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6216                self.leader_updated(participant_id, window, cx);
 6217            }
 6218        }
 6219    }
 6220
 6221    pub fn database_id(&self) -> Option<WorkspaceId> {
 6222        self.database_id
 6223    }
 6224
 6225    #[cfg(any(test, feature = "test-support"))]
 6226    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6227        self.database_id = Some(id);
 6228    }
 6229
 6230    pub fn session_id(&self) -> Option<String> {
 6231        self.session_id.clone()
 6232    }
 6233
 6234    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6235        let Some(display) = window.display(cx) else {
 6236            return Task::ready(());
 6237        };
 6238        let Ok(display_uuid) = display.uuid() else {
 6239            return Task::ready(());
 6240        };
 6241
 6242        let window_bounds = window.inner_window_bounds();
 6243        let database_id = self.database_id;
 6244        let has_paths = !self.root_paths(cx).is_empty();
 6245        let db = WorkspaceDb::global(cx);
 6246        let kvp = db::kvp::KeyValueStore::global(cx);
 6247
 6248        cx.background_executor().spawn(async move {
 6249            if !has_paths {
 6250                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6251                    .await
 6252                    .log_err();
 6253            }
 6254            if let Some(database_id) = database_id {
 6255                db.set_window_open_status(
 6256                    database_id,
 6257                    SerializedWindowBounds(window_bounds),
 6258                    display_uuid,
 6259                )
 6260                .await
 6261                .log_err();
 6262            } else {
 6263                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6264                    .await
 6265                    .log_err();
 6266            }
 6267        })
 6268    }
 6269
 6270    /// Bypass the 200ms serialization throttle and write workspace state to
 6271    /// the DB immediately. Returns a task the caller can await to ensure the
 6272    /// write completes. Used by the quit handler so the most recent state
 6273    /// isn't lost to a pending throttle timer when the process exits.
 6274    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6275        self._schedule_serialize_workspace.take();
 6276        self._serialize_workspace_task.take();
 6277        self.bounds_save_task_queued.take();
 6278
 6279        let bounds_task = self.save_window_bounds(window, cx);
 6280        let serialize_task = self.serialize_workspace_internal(window, cx);
 6281        cx.spawn(async move |_| {
 6282            bounds_task.await;
 6283            serialize_task.await;
 6284        })
 6285    }
 6286
 6287    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6288        let project = self.project().read(cx);
 6289        project
 6290            .visible_worktrees(cx)
 6291            .map(|worktree| worktree.read(cx).abs_path())
 6292            .collect::<Vec<_>>()
 6293    }
 6294
 6295    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6296        match member {
 6297            Member::Axis(PaneAxis { members, .. }) => {
 6298                for child in members.iter() {
 6299                    self.remove_panes(child.clone(), window, cx)
 6300                }
 6301            }
 6302            Member::Pane(pane) => {
 6303                self.force_remove_pane(&pane, &None, window, cx);
 6304            }
 6305        }
 6306    }
 6307
 6308    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6309        self.session_id.take();
 6310        self.serialize_workspace_internal(window, cx)
 6311    }
 6312
 6313    fn force_remove_pane(
 6314        &mut self,
 6315        pane: &Entity<Pane>,
 6316        focus_on: &Option<Entity<Pane>>,
 6317        window: &mut Window,
 6318        cx: &mut Context<Workspace>,
 6319    ) {
 6320        self.panes.retain(|p| p != pane);
 6321        if let Some(focus_on) = focus_on {
 6322            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6323        } else if self.active_pane() == pane {
 6324            self.panes
 6325                .last()
 6326                .unwrap()
 6327                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6328        }
 6329        if self.last_active_center_pane == Some(pane.downgrade()) {
 6330            self.last_active_center_pane = None;
 6331        }
 6332        cx.notify();
 6333    }
 6334
 6335    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6336        if self._schedule_serialize_workspace.is_none() {
 6337            self._schedule_serialize_workspace =
 6338                Some(cx.spawn_in(window, async move |this, cx| {
 6339                    cx.background_executor()
 6340                        .timer(SERIALIZATION_THROTTLE_TIME)
 6341                        .await;
 6342                    this.update_in(cx, |this, window, cx| {
 6343                        this._serialize_workspace_task =
 6344                            Some(this.serialize_workspace_internal(window, cx));
 6345                        this._schedule_serialize_workspace.take();
 6346                    })
 6347                    .log_err();
 6348                }));
 6349        }
 6350    }
 6351
 6352    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6353        let Some(database_id) = self.database_id() else {
 6354            return Task::ready(());
 6355        };
 6356
 6357        fn serialize_pane_handle(
 6358            pane_handle: &Entity<Pane>,
 6359            window: &mut Window,
 6360            cx: &mut App,
 6361        ) -> SerializedPane {
 6362            let (items, active, pinned_count) = {
 6363                let pane = pane_handle.read(cx);
 6364                let active_item_id = pane.active_item().map(|item| item.item_id());
 6365                (
 6366                    pane.items()
 6367                        .filter_map(|handle| {
 6368                            let handle = handle.to_serializable_item_handle(cx)?;
 6369
 6370                            Some(SerializedItem {
 6371                                kind: Arc::from(handle.serialized_item_kind()),
 6372                                item_id: handle.item_id().as_u64(),
 6373                                active: Some(handle.item_id()) == active_item_id,
 6374                                preview: pane.is_active_preview_item(handle.item_id()),
 6375                            })
 6376                        })
 6377                        .collect::<Vec<_>>(),
 6378                    pane.has_focus(window, cx),
 6379                    pane.pinned_count(),
 6380                )
 6381            };
 6382
 6383            SerializedPane::new(items, active, pinned_count)
 6384        }
 6385
 6386        fn build_serialized_pane_group(
 6387            pane_group: &Member,
 6388            window: &mut Window,
 6389            cx: &mut App,
 6390        ) -> SerializedPaneGroup {
 6391            match pane_group {
 6392                Member::Axis(PaneAxis {
 6393                    axis,
 6394                    members,
 6395                    flexes,
 6396                    bounding_boxes: _,
 6397                }) => SerializedPaneGroup::Group {
 6398                    axis: SerializedAxis(*axis),
 6399                    children: members
 6400                        .iter()
 6401                        .map(|member| build_serialized_pane_group(member, window, cx))
 6402                        .collect::<Vec<_>>(),
 6403                    flexes: Some(flexes.lock().clone()),
 6404                },
 6405                Member::Pane(pane_handle) => {
 6406                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6407                }
 6408            }
 6409        }
 6410
 6411        fn build_serialized_docks(
 6412            this: &Workspace,
 6413            window: &mut Window,
 6414            cx: &mut App,
 6415        ) -> DockStructure {
 6416            this.capture_dock_state(window, cx)
 6417        }
 6418
 6419        match self.workspace_location(cx) {
 6420            WorkspaceLocation::Location(location, paths) => {
 6421                let breakpoints = self.project.update(cx, |project, cx| {
 6422                    project
 6423                        .breakpoint_store()
 6424                        .read(cx)
 6425                        .all_source_breakpoints(cx)
 6426                });
 6427                let user_toolchains = self
 6428                    .project
 6429                    .read(cx)
 6430                    .user_toolchains(cx)
 6431                    .unwrap_or_default();
 6432
 6433                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6434                let docks = build_serialized_docks(self, window, cx);
 6435                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6436
 6437                let serialized_workspace = SerializedWorkspace {
 6438                    id: database_id,
 6439                    location,
 6440                    paths,
 6441                    center_group,
 6442                    window_bounds,
 6443                    display: Default::default(),
 6444                    docks,
 6445                    centered_layout: self.centered_layout,
 6446                    session_id: self.session_id.clone(),
 6447                    breakpoints,
 6448                    window_id: Some(window.window_handle().window_id().as_u64()),
 6449                    user_toolchains,
 6450                };
 6451
 6452                let db = WorkspaceDb::global(cx);
 6453                window.spawn(cx, async move |_| {
 6454                    db.save_workspace(serialized_workspace).await;
 6455                })
 6456            }
 6457            WorkspaceLocation::DetachFromSession => {
 6458                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6459                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6460                // Save dock state for empty local workspaces
 6461                let docks = build_serialized_docks(self, window, cx);
 6462                let db = WorkspaceDb::global(cx);
 6463                let kvp = db::kvp::KeyValueStore::global(cx);
 6464                window.spawn(cx, async move |_| {
 6465                    db.set_window_open_status(
 6466                        database_id,
 6467                        window_bounds,
 6468                        display.unwrap_or_default(),
 6469                    )
 6470                    .await
 6471                    .log_err();
 6472                    db.set_session_id(database_id, None).await.log_err();
 6473                    persistence::write_default_dock_state(&kvp, docks)
 6474                        .await
 6475                        .log_err();
 6476                })
 6477            }
 6478            WorkspaceLocation::None => {
 6479                // Save dock state for empty non-local workspaces
 6480                let docks = build_serialized_docks(self, window, cx);
 6481                let kvp = db::kvp::KeyValueStore::global(cx);
 6482                window.spawn(cx, async move |_| {
 6483                    persistence::write_default_dock_state(&kvp, docks)
 6484                        .await
 6485                        .log_err();
 6486                })
 6487            }
 6488        }
 6489    }
 6490
 6491    fn has_any_items_open(&self, cx: &App) -> bool {
 6492        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6493    }
 6494
 6495    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6496        let paths = PathList::new(&self.root_paths(cx));
 6497        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6498            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6499        } else if self.project.read(cx).is_local() {
 6500            if !paths.is_empty() || self.has_any_items_open(cx) {
 6501                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6502            } else {
 6503                WorkspaceLocation::DetachFromSession
 6504            }
 6505        } else {
 6506            WorkspaceLocation::None
 6507        }
 6508    }
 6509
 6510    fn update_history(&self, cx: &mut App) {
 6511        let Some(id) = self.database_id() else {
 6512            return;
 6513        };
 6514        if !self.project.read(cx).is_local() {
 6515            return;
 6516        }
 6517        if let Some(manager) = HistoryManager::global(cx) {
 6518            let paths = PathList::new(&self.root_paths(cx));
 6519            manager.update(cx, |this, cx| {
 6520                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6521            });
 6522        }
 6523    }
 6524
 6525    async fn serialize_items(
 6526        this: &WeakEntity<Self>,
 6527        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6528        cx: &mut AsyncWindowContext,
 6529    ) -> Result<()> {
 6530        const CHUNK_SIZE: usize = 200;
 6531
 6532        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6533
 6534        while let Some(items_received) = serializable_items.next().await {
 6535            let unique_items =
 6536                items_received
 6537                    .into_iter()
 6538                    .fold(HashMap::default(), |mut acc, item| {
 6539                        acc.entry(item.item_id()).or_insert(item);
 6540                        acc
 6541                    });
 6542
 6543            // We use into_iter() here so that the references to the items are moved into
 6544            // the tasks and not kept alive while we're sleeping.
 6545            for (_, item) in unique_items.into_iter() {
 6546                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6547                    item.serialize(workspace, false, window, cx)
 6548                }) {
 6549                    cx.background_spawn(async move { task.await.log_err() })
 6550                        .detach();
 6551                }
 6552            }
 6553
 6554            cx.background_executor()
 6555                .timer(SERIALIZATION_THROTTLE_TIME)
 6556                .await;
 6557        }
 6558
 6559        Ok(())
 6560    }
 6561
 6562    pub(crate) fn enqueue_item_serialization(
 6563        &mut self,
 6564        item: Box<dyn SerializableItemHandle>,
 6565    ) -> Result<()> {
 6566        self.serializable_items_tx
 6567            .unbounded_send(item)
 6568            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6569    }
 6570
 6571    pub(crate) fn load_workspace(
 6572        serialized_workspace: SerializedWorkspace,
 6573        paths_to_open: Vec<Option<ProjectPath>>,
 6574        window: &mut Window,
 6575        cx: &mut Context<Workspace>,
 6576    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6577        cx.spawn_in(window, async move |workspace, cx| {
 6578            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6579
 6580            let mut center_group = None;
 6581            let mut center_items = None;
 6582
 6583            // Traverse the splits tree and add to things
 6584            if let Some((group, active_pane, items)) = serialized_workspace
 6585                .center_group
 6586                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6587                .await
 6588            {
 6589                center_items = Some(items);
 6590                center_group = Some((group, active_pane))
 6591            }
 6592
 6593            let mut items_by_project_path = HashMap::default();
 6594            let mut item_ids_by_kind = HashMap::default();
 6595            let mut all_deserialized_items = Vec::default();
 6596            cx.update(|_, cx| {
 6597                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6598                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6599                        item_ids_by_kind
 6600                            .entry(serializable_item_handle.serialized_item_kind())
 6601                            .or_insert(Vec::new())
 6602                            .push(item.item_id().as_u64() as ItemId);
 6603                    }
 6604
 6605                    if let Some(project_path) = item.project_path(cx) {
 6606                        items_by_project_path.insert(project_path, item.clone());
 6607                    }
 6608                    all_deserialized_items.push(item);
 6609                }
 6610            })?;
 6611
 6612            let opened_items = paths_to_open
 6613                .into_iter()
 6614                .map(|path_to_open| {
 6615                    path_to_open
 6616                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6617                })
 6618                .collect::<Vec<_>>();
 6619
 6620            // Remove old panes from workspace panes list
 6621            workspace.update_in(cx, |workspace, window, cx| {
 6622                if let Some((center_group, active_pane)) = center_group {
 6623                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6624
 6625                    // Swap workspace center group
 6626                    workspace.center = PaneGroup::with_root(center_group);
 6627                    workspace.center.set_is_center(true);
 6628                    workspace.center.mark_positions(cx);
 6629
 6630                    if let Some(active_pane) = active_pane {
 6631                        workspace.set_active_pane(&active_pane, window, cx);
 6632                        cx.focus_self(window);
 6633                    } else {
 6634                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6635                    }
 6636                }
 6637
 6638                let docks = serialized_workspace.docks;
 6639
 6640                for (dock, serialized_dock) in [
 6641                    (&mut workspace.right_dock, docks.right),
 6642                    (&mut workspace.left_dock, docks.left),
 6643                    (&mut workspace.bottom_dock, docks.bottom),
 6644                ]
 6645                .iter_mut()
 6646                {
 6647                    dock.update(cx, |dock, cx| {
 6648                        dock.serialized_dock = Some(serialized_dock.clone());
 6649                        dock.restore_state(window, cx);
 6650                    });
 6651                }
 6652
 6653                cx.notify();
 6654            })?;
 6655
 6656            let _ = project
 6657                .update(cx, |project, cx| {
 6658                    project
 6659                        .breakpoint_store()
 6660                        .update(cx, |breakpoint_store, cx| {
 6661                            breakpoint_store
 6662                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6663                        })
 6664                })
 6665                .await;
 6666
 6667            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6668            // after loading the items, we might have different items and in order to avoid
 6669            // the database filling up, we delete items that haven't been loaded now.
 6670            //
 6671            // The items that have been loaded, have been saved after they've been added to the workspace.
 6672            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6673                item_ids_by_kind
 6674                    .into_iter()
 6675                    .map(|(item_kind, loaded_items)| {
 6676                        SerializableItemRegistry::cleanup(
 6677                            item_kind,
 6678                            serialized_workspace.id,
 6679                            loaded_items,
 6680                            window,
 6681                            cx,
 6682                        )
 6683                        .log_err()
 6684                    })
 6685                    .collect::<Vec<_>>()
 6686            })?;
 6687
 6688            futures::future::join_all(clean_up_tasks).await;
 6689
 6690            workspace
 6691                .update_in(cx, |workspace, window, cx| {
 6692                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6693                    workspace.serialize_workspace_internal(window, cx).detach();
 6694
 6695                    // Ensure that we mark the window as edited if we did load dirty items
 6696                    workspace.update_window_edited(window, cx);
 6697                })
 6698                .ok();
 6699
 6700            Ok(opened_items)
 6701        })
 6702    }
 6703
 6704    pub fn key_context(&self, cx: &App) -> KeyContext {
 6705        let mut context = KeyContext::new_with_defaults();
 6706        context.add("Workspace");
 6707        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6708        if let Some(status) = self
 6709            .debugger_provider
 6710            .as_ref()
 6711            .and_then(|provider| provider.active_thread_state(cx))
 6712        {
 6713            match status {
 6714                ThreadStatus::Running | ThreadStatus::Stepping => {
 6715                    context.add("debugger_running");
 6716                }
 6717                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6718                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6719            }
 6720        }
 6721
 6722        if self.left_dock.read(cx).is_open() {
 6723            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6724                context.set("left_dock", active_panel.panel_key());
 6725            }
 6726        }
 6727
 6728        if self.right_dock.read(cx).is_open() {
 6729            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6730                context.set("right_dock", active_panel.panel_key());
 6731            }
 6732        }
 6733
 6734        if self.bottom_dock.read(cx).is_open() {
 6735            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6736                context.set("bottom_dock", active_panel.panel_key());
 6737            }
 6738        }
 6739
 6740        context
 6741    }
 6742
 6743    /// Multiworkspace uses this to add workspace action handling to itself
 6744    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6745        self.add_workspace_actions_listeners(div, window, cx)
 6746            .on_action(cx.listener(
 6747                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6748                    for action in &action_sequence.0 {
 6749                        window.dispatch_action(action.boxed_clone(), cx);
 6750                    }
 6751                },
 6752            ))
 6753            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6754            .on_action(cx.listener(Self::close_all_items_and_panes))
 6755            .on_action(cx.listener(Self::close_item_in_all_panes))
 6756            .on_action(cx.listener(Self::save_all))
 6757            .on_action(cx.listener(Self::send_keystrokes))
 6758            .on_action(cx.listener(Self::add_folder_to_project))
 6759            .on_action(cx.listener(Self::follow_next_collaborator))
 6760            .on_action(cx.listener(Self::activate_pane_at_index))
 6761            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6762            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6763            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6764            .on_action(cx.listener(Self::toggle_theme_mode))
 6765            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6766                let pane = workspace.active_pane().clone();
 6767                workspace.unfollow_in_pane(&pane, window, cx);
 6768            }))
 6769            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6770                workspace
 6771                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6772                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6773            }))
 6774            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6775                workspace
 6776                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6777                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6778            }))
 6779            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6780                workspace
 6781                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6782                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6783            }))
 6784            .on_action(
 6785                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6786                    workspace.activate_previous_pane(window, cx)
 6787                }),
 6788            )
 6789            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6790                workspace.activate_next_pane(window, cx)
 6791            }))
 6792            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6793                workspace.activate_last_pane(window, cx)
 6794            }))
 6795            .on_action(
 6796                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6797                    workspace.activate_next_window(cx)
 6798                }),
 6799            )
 6800            .on_action(
 6801                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6802                    workspace.activate_previous_window(cx)
 6803                }),
 6804            )
 6805            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6806                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6807            }))
 6808            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6809                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6810            }))
 6811            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6812                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6813            }))
 6814            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6815                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6816            }))
 6817            .on_action(cx.listener(
 6818                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6819                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6820                },
 6821            ))
 6822            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6823                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6824            }))
 6825            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6826                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6827            }))
 6828            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6829                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6830            }))
 6831            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6832                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6833            }))
 6834            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6835                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6836                    SplitDirection::Down,
 6837                    SplitDirection::Up,
 6838                    SplitDirection::Right,
 6839                    SplitDirection::Left,
 6840                ];
 6841                for dir in DIRECTION_PRIORITY {
 6842                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6843                        workspace.swap_pane_in_direction(dir, cx);
 6844                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6845                        break;
 6846                    }
 6847                }
 6848            }))
 6849            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6850                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6851            }))
 6852            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6853                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6854            }))
 6855            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6856                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6857            }))
 6858            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6859                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6860            }))
 6861            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6862                this.toggle_dock(DockPosition::Left, window, cx);
 6863            }))
 6864            .on_action(cx.listener(
 6865                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6866                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6867                },
 6868            ))
 6869            .on_action(cx.listener(
 6870                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6871                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6872                },
 6873            ))
 6874            .on_action(cx.listener(
 6875                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6876                    if !workspace.close_active_dock(window, cx) {
 6877                        cx.propagate();
 6878                    }
 6879                },
 6880            ))
 6881            .on_action(
 6882                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6883                    workspace.close_all_docks(window, cx);
 6884                }),
 6885            )
 6886            .on_action(cx.listener(Self::toggle_all_docks))
 6887            .on_action(cx.listener(
 6888                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6889                    workspace.clear_all_notifications(cx);
 6890                },
 6891            ))
 6892            .on_action(cx.listener(
 6893                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6894                    workspace.clear_navigation_history(window, cx);
 6895                },
 6896            ))
 6897            .on_action(cx.listener(
 6898                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6899                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6900                        workspace.suppress_notification(&notification_id, cx);
 6901                    }
 6902                },
 6903            ))
 6904            .on_action(cx.listener(
 6905                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6906                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6907                },
 6908            ))
 6909            .on_action(
 6910                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6911                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6912                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6913                            trusted_worktrees.clear_trusted_paths()
 6914                        });
 6915                        let db = WorkspaceDb::global(cx);
 6916                        cx.spawn(async move |_, cx| {
 6917                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 6918                                cx.update(|cx| reload(cx));
 6919                            }
 6920                        })
 6921                        .detach();
 6922                    }
 6923                }),
 6924            )
 6925            .on_action(cx.listener(
 6926                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6927                    workspace.reopen_closed_item(window, cx).detach();
 6928                },
 6929            ))
 6930            .on_action(cx.listener(
 6931                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6932                    for dock in workspace.all_docks() {
 6933                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6934                            let panel = dock.read(cx).active_panel().cloned();
 6935                            if let Some(panel) = panel {
 6936                                dock.update(cx, |dock, cx| {
 6937                                    dock.set_panel_size_state(
 6938                                        panel.as_ref(),
 6939                                        dock::PanelSizeState::default(),
 6940                                        cx,
 6941                                    );
 6942                                });
 6943                            }
 6944                            return;
 6945                        }
 6946                    }
 6947                },
 6948            ))
 6949            .on_action(cx.listener(
 6950                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 6951                    for dock in workspace.all_docks() {
 6952                        let panel = dock.read(cx).visible_panel().cloned();
 6953                        if let Some(panel) = panel {
 6954                            dock.update(cx, |dock, cx| {
 6955                                dock.set_panel_size_state(
 6956                                    panel.as_ref(),
 6957                                    dock::PanelSizeState::default(),
 6958                                    cx,
 6959                                );
 6960                            });
 6961                        }
 6962                    }
 6963                },
 6964            ))
 6965            .on_action(cx.listener(
 6966                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6967                    adjust_active_dock_size_by_px(
 6968                        px_with_ui_font_fallback(act.px, cx),
 6969                        workspace,
 6970                        window,
 6971                        cx,
 6972                    );
 6973                },
 6974            ))
 6975            .on_action(cx.listener(
 6976                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6977                    adjust_active_dock_size_by_px(
 6978                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6979                        workspace,
 6980                        window,
 6981                        cx,
 6982                    );
 6983                },
 6984            ))
 6985            .on_action(cx.listener(
 6986                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6987                    adjust_open_docks_size_by_px(
 6988                        px_with_ui_font_fallback(act.px, cx),
 6989                        workspace,
 6990                        window,
 6991                        cx,
 6992                    );
 6993                },
 6994            ))
 6995            .on_action(cx.listener(
 6996                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6997                    adjust_open_docks_size_by_px(
 6998                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6999                        workspace,
 7000                        window,
 7001                        cx,
 7002                    );
 7003                },
 7004            ))
 7005            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7006            .on_action(cx.listener(
 7007                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 7008                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7009                        let dock = active_dock.read(cx);
 7010                        if let Some(active_panel) = dock.active_panel() {
 7011                            if active_panel.pane(cx).is_none() {
 7012                                let mut recent_pane: Option<Entity<Pane>> = None;
 7013                                let mut recent_timestamp = 0;
 7014                                for pane_handle in workspace.panes() {
 7015                                    let pane = pane_handle.read(cx);
 7016                                    for entry in pane.activation_history() {
 7017                                        if entry.timestamp > recent_timestamp {
 7018                                            recent_timestamp = entry.timestamp;
 7019                                            recent_pane = Some(pane_handle.clone());
 7020                                        }
 7021                                    }
 7022                                }
 7023
 7024                                if let Some(pane) = recent_pane {
 7025                                    pane.update(cx, |pane, cx| {
 7026                                        let current_index = pane.active_item_index();
 7027                                        let items_len = pane.items_len();
 7028                                        if items_len > 0 {
 7029                                            let next_index = if current_index + 1 < items_len {
 7030                                                current_index + 1
 7031                                            } else {
 7032                                                0
 7033                                            };
 7034                                            pane.activate_item(
 7035                                                next_index, false, false, window, cx,
 7036                                            );
 7037                                        }
 7038                                    });
 7039                                    return;
 7040                                }
 7041                            }
 7042                        }
 7043                    }
 7044                    cx.propagate();
 7045                },
 7046            ))
 7047            .on_action(cx.listener(
 7048                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 7049                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7050                        let dock = active_dock.read(cx);
 7051                        if let Some(active_panel) = dock.active_panel() {
 7052                            if active_panel.pane(cx).is_none() {
 7053                                let mut recent_pane: Option<Entity<Pane>> = None;
 7054                                let mut recent_timestamp = 0;
 7055                                for pane_handle in workspace.panes() {
 7056                                    let pane = pane_handle.read(cx);
 7057                                    for entry in pane.activation_history() {
 7058                                        if entry.timestamp > recent_timestamp {
 7059                                            recent_timestamp = entry.timestamp;
 7060                                            recent_pane = Some(pane_handle.clone());
 7061                                        }
 7062                                    }
 7063                                }
 7064
 7065                                if let Some(pane) = recent_pane {
 7066                                    pane.update(cx, |pane, cx| {
 7067                                        let current_index = pane.active_item_index();
 7068                                        let items_len = pane.items_len();
 7069                                        if items_len > 0 {
 7070                                            let prev_index = if current_index > 0 {
 7071                                                current_index - 1
 7072                                            } else {
 7073                                                items_len.saturating_sub(1)
 7074                                            };
 7075                                            pane.activate_item(
 7076                                                prev_index, false, false, window, cx,
 7077                                            );
 7078                                        }
 7079                                    });
 7080                                    return;
 7081                                }
 7082                            }
 7083                        }
 7084                    }
 7085                    cx.propagate();
 7086                },
 7087            ))
 7088            .on_action(cx.listener(
 7089                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7090                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7091                        let dock = active_dock.read(cx);
 7092                        if let Some(active_panel) = dock.active_panel() {
 7093                            if active_panel.pane(cx).is_none() {
 7094                                let active_pane = workspace.active_pane().clone();
 7095                                active_pane.update(cx, |pane, cx| {
 7096                                    pane.close_active_item(action, window, cx)
 7097                                        .detach_and_log_err(cx);
 7098                                });
 7099                                return;
 7100                            }
 7101                        }
 7102                    }
 7103                    cx.propagate();
 7104                },
 7105            ))
 7106            .on_action(
 7107                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7108                    let pane = workspace.active_pane().clone();
 7109                    if let Some(item) = pane.read(cx).active_item() {
 7110                        item.toggle_read_only(window, cx);
 7111                    }
 7112                }),
 7113            )
 7114            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7115                workspace.focus_center_pane(window, cx);
 7116            }))
 7117            .on_action(cx.listener(Workspace::cancel))
 7118    }
 7119
 7120    #[cfg(any(test, feature = "test-support"))]
 7121    pub fn set_random_database_id(&mut self) {
 7122        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7123    }
 7124
 7125    #[cfg(any(test, feature = "test-support"))]
 7126    pub(crate) fn test_new(
 7127        project: Entity<Project>,
 7128        window: &mut Window,
 7129        cx: &mut Context<Self>,
 7130    ) -> Self {
 7131        use node_runtime::NodeRuntime;
 7132        use session::Session;
 7133
 7134        let client = project.read(cx).client();
 7135        let user_store = project.read(cx).user_store();
 7136        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7137        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7138        window.activate_window();
 7139        let app_state = Arc::new(AppState {
 7140            languages: project.read(cx).languages().clone(),
 7141            workspace_store,
 7142            client,
 7143            user_store,
 7144            fs: project.read(cx).fs().clone(),
 7145            build_window_options: |_, _| Default::default(),
 7146            node_runtime: NodeRuntime::unavailable(),
 7147            session,
 7148        });
 7149        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7150        workspace
 7151            .active_pane
 7152            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7153        workspace
 7154    }
 7155
 7156    pub fn register_action<A: Action>(
 7157        &mut self,
 7158        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7159    ) -> &mut Self {
 7160        let callback = Arc::new(callback);
 7161
 7162        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7163            let callback = callback.clone();
 7164            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7165                (callback)(workspace, event, window, cx)
 7166            }))
 7167        }));
 7168        self
 7169    }
 7170    pub fn register_action_renderer(
 7171        &mut self,
 7172        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7173    ) -> &mut Self {
 7174        self.workspace_actions.push(Box::new(callback));
 7175        self
 7176    }
 7177
 7178    fn add_workspace_actions_listeners(
 7179        &self,
 7180        mut div: Div,
 7181        window: &mut Window,
 7182        cx: &mut Context<Self>,
 7183    ) -> Div {
 7184        for action in self.workspace_actions.iter() {
 7185            div = (action)(div, self, window, cx)
 7186        }
 7187        div
 7188    }
 7189
 7190    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7191        self.modal_layer.read(cx).has_active_modal()
 7192    }
 7193
 7194    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7195        self.modal_layer
 7196            .read(cx)
 7197            .is_active_modal_command_palette(cx)
 7198    }
 7199
 7200    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7201        self.modal_layer.read(cx).active_modal()
 7202    }
 7203
 7204    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7205    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7206    /// If no modal is active, the new modal will be shown.
 7207    ///
 7208    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7209    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7210    /// will not be shown.
 7211    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7212    where
 7213        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7214    {
 7215        self.modal_layer.update(cx, |modal_layer, cx| {
 7216            modal_layer.toggle_modal(window, cx, build)
 7217        })
 7218    }
 7219
 7220    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7221        self.modal_layer
 7222            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7223    }
 7224
 7225    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7226        self.toast_layer
 7227            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7228    }
 7229
 7230    pub fn toggle_centered_layout(
 7231        &mut self,
 7232        _: &ToggleCenteredLayout,
 7233        _: &mut Window,
 7234        cx: &mut Context<Self>,
 7235    ) {
 7236        self.centered_layout = !self.centered_layout;
 7237        if let Some(database_id) = self.database_id() {
 7238            let db = WorkspaceDb::global(cx);
 7239            let centered_layout = self.centered_layout;
 7240            cx.background_spawn(async move {
 7241                db.set_centered_layout(database_id, centered_layout).await
 7242            })
 7243            .detach_and_log_err(cx);
 7244        }
 7245        cx.notify();
 7246    }
 7247
 7248    fn adjust_padding(padding: Option<f32>) -> f32 {
 7249        padding
 7250            .unwrap_or(CenteredPaddingSettings::default().0)
 7251            .clamp(
 7252                CenteredPaddingSettings::MIN_PADDING,
 7253                CenteredPaddingSettings::MAX_PADDING,
 7254            )
 7255    }
 7256
 7257    fn render_dock(
 7258        &self,
 7259        position: DockPosition,
 7260        dock: &Entity<Dock>,
 7261        window: &mut Window,
 7262        cx: &mut App,
 7263    ) -> Option<Div> {
 7264        if self.zoomed_position == Some(position) {
 7265            return None;
 7266        }
 7267
 7268        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7269            let pane = panel.pane(cx)?;
 7270            let follower_states = &self.follower_states;
 7271            leader_border_for_pane(follower_states, &pane, window, cx)
 7272        });
 7273
 7274        let mut container = div()
 7275            .flex()
 7276            .overflow_hidden()
 7277            .flex_none()
 7278            .child(dock.clone())
 7279            .children(leader_border);
 7280
 7281        // Apply sizing only when the dock is open. When closed the dock is still
 7282        // included in the element tree so its focus handle remains mounted — without
 7283        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7284        let dock = dock.read(cx);
 7285        if let Some(panel) = dock.visible_panel() {
 7286            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7287            if position.axis() == Axis::Horizontal {
 7288                if let Some(ratio) = size_state
 7289                    .and_then(|state| state.flexible_size_ratio)
 7290                    .or_else(|| self.default_flexible_dock_ratio(position))
 7291                    && panel.supports_flexible_size(window, cx)
 7292                {
 7293                    let ratio = ratio.clamp(0.001, 0.999);
 7294                    let grow = ratio / (1.0 - ratio);
 7295                    let style = container.style();
 7296                    style.flex_grow = Some(grow);
 7297                    style.flex_shrink = Some(1.0);
 7298                    style.flex_basis = Some(relative(0.).into());
 7299                } else {
 7300                    let size = size_state
 7301                        .and_then(|state| state.size)
 7302                        .unwrap_or_else(|| panel.default_size(window, cx));
 7303                    container = container.w(size);
 7304                }
 7305            } else {
 7306                let size = size_state
 7307                    .and_then(|state| state.size)
 7308                    .unwrap_or_else(|| panel.default_size(window, cx));
 7309                container = container.h(size);
 7310            }
 7311        }
 7312
 7313        Some(container)
 7314    }
 7315
 7316    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7317        window
 7318            .root::<MultiWorkspace>()
 7319            .flatten()
 7320            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7321    }
 7322
 7323    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7324        self.zoomed.as_ref()
 7325    }
 7326
 7327    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7328        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7329            return;
 7330        };
 7331        let windows = cx.windows();
 7332        let next_window =
 7333            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7334                || {
 7335                    windows
 7336                        .iter()
 7337                        .cycle()
 7338                        .skip_while(|window| window.window_id() != current_window_id)
 7339                        .nth(1)
 7340                },
 7341            );
 7342
 7343        if let Some(window) = next_window {
 7344            window
 7345                .update(cx, |_, window, _| window.activate_window())
 7346                .ok();
 7347        }
 7348    }
 7349
 7350    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7351        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7352            return;
 7353        };
 7354        let windows = cx.windows();
 7355        let prev_window =
 7356            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7357                || {
 7358                    windows
 7359                        .iter()
 7360                        .rev()
 7361                        .cycle()
 7362                        .skip_while(|window| window.window_id() != current_window_id)
 7363                        .nth(1)
 7364                },
 7365            );
 7366
 7367        if let Some(window) = prev_window {
 7368            window
 7369                .update(cx, |_, window, _| window.activate_window())
 7370                .ok();
 7371        }
 7372    }
 7373
 7374    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7375        if cx.stop_active_drag(window) {
 7376        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7377            dismiss_app_notification(&notification_id, cx);
 7378        } else {
 7379            cx.propagate();
 7380        }
 7381    }
 7382
 7383    fn resize_dock(
 7384        &mut self,
 7385        dock_pos: DockPosition,
 7386        new_size: Pixels,
 7387        window: &mut Window,
 7388        cx: &mut Context<Self>,
 7389    ) {
 7390        match dock_pos {
 7391            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7392            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7393            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7394        }
 7395    }
 7396
 7397    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7398        let workspace_width = self.bounds.size.width;
 7399        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7400
 7401        self.right_dock.read_with(cx, |right_dock, cx| {
 7402            let right_dock_size = right_dock
 7403                .stored_active_panel_size(window, cx)
 7404                .unwrap_or(Pixels::ZERO);
 7405            if right_dock_size + size > workspace_width {
 7406                size = workspace_width - right_dock_size
 7407            }
 7408        });
 7409
 7410        let ratio = self.flexible_dock_ratio_for_size(DockPosition::Left, size, window, cx);
 7411        self.left_dock.update(cx, |left_dock, cx| {
 7412            if WorkspaceSettings::get_global(cx)
 7413                .resize_all_panels_in_dock
 7414                .contains(&DockPosition::Left)
 7415            {
 7416                left_dock.resize_all_panels(Some(size), ratio, window, cx);
 7417            } else {
 7418                left_dock.resize_active_panel(Some(size), ratio, window, cx);
 7419            }
 7420        });
 7421    }
 7422
 7423    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7424        let workspace_width = self.bounds.size.width;
 7425        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7426        self.left_dock.read_with(cx, |left_dock, cx| {
 7427            let left_dock_size = left_dock
 7428                .stored_active_panel_size(window, cx)
 7429                .unwrap_or(Pixels::ZERO);
 7430            if left_dock_size + size > workspace_width {
 7431                size = workspace_width - left_dock_size
 7432            }
 7433        });
 7434        let ratio = self.flexible_dock_ratio_for_size(DockPosition::Right, size, window, cx);
 7435        self.right_dock.update(cx, |right_dock, cx| {
 7436            if WorkspaceSettings::get_global(cx)
 7437                .resize_all_panels_in_dock
 7438                .contains(&DockPosition::Right)
 7439            {
 7440                right_dock.resize_all_panels(Some(size), ratio, window, cx);
 7441            } else {
 7442                right_dock.resize_active_panel(Some(size), ratio, window, cx);
 7443            }
 7444        });
 7445    }
 7446
 7447    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7448        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7449        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7450            if WorkspaceSettings::get_global(cx)
 7451                .resize_all_panels_in_dock
 7452                .contains(&DockPosition::Bottom)
 7453            {
 7454                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7455            } else {
 7456                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7457            }
 7458        });
 7459    }
 7460
 7461    fn toggle_edit_predictions_all_files(
 7462        &mut self,
 7463        _: &ToggleEditPrediction,
 7464        _window: &mut Window,
 7465        cx: &mut Context<Self>,
 7466    ) {
 7467        let fs = self.project().read(cx).fs().clone();
 7468        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7469        update_settings_file(fs, cx, move |file, _| {
 7470            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7471        });
 7472    }
 7473
 7474    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7475        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7476        let next_mode = match current_mode {
 7477            Some(theme_settings::ThemeAppearanceMode::Light) => {
 7478                theme_settings::ThemeAppearanceMode::Dark
 7479            }
 7480            Some(theme_settings::ThemeAppearanceMode::Dark) => {
 7481                theme_settings::ThemeAppearanceMode::Light
 7482            }
 7483            Some(theme_settings::ThemeAppearanceMode::System) | None => {
 7484                match cx.theme().appearance() {
 7485                    theme::Appearance::Light => theme_settings::ThemeAppearanceMode::Dark,
 7486                    theme::Appearance::Dark => theme_settings::ThemeAppearanceMode::Light,
 7487                }
 7488            }
 7489        };
 7490
 7491        let fs = self.project().read(cx).fs().clone();
 7492        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7493            theme_settings::set_mode(settings, next_mode);
 7494        });
 7495    }
 7496
 7497    pub fn show_worktree_trust_security_modal(
 7498        &mut self,
 7499        toggle: bool,
 7500        window: &mut Window,
 7501        cx: &mut Context<Self>,
 7502    ) {
 7503        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7504            if toggle {
 7505                security_modal.update(cx, |security_modal, cx| {
 7506                    security_modal.dismiss(cx);
 7507                })
 7508            } else {
 7509                security_modal.update(cx, |security_modal, cx| {
 7510                    security_modal.refresh_restricted_paths(cx);
 7511                });
 7512            }
 7513        } else {
 7514            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7515                .map(|trusted_worktrees| {
 7516                    trusted_worktrees
 7517                        .read(cx)
 7518                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7519                })
 7520                .unwrap_or(false);
 7521            if has_restricted_worktrees {
 7522                let project = self.project().read(cx);
 7523                let remote_host = project
 7524                    .remote_connection_options(cx)
 7525                    .map(RemoteHostLocation::from);
 7526                let worktree_store = project.worktree_store().downgrade();
 7527                self.toggle_modal(window, cx, |_, cx| {
 7528                    SecurityModal::new(worktree_store, remote_host, cx)
 7529                });
 7530            }
 7531        }
 7532    }
 7533}
 7534
 7535pub trait AnyActiveCall {
 7536    fn entity(&self) -> AnyEntity;
 7537    fn is_in_room(&self, _: &App) -> bool;
 7538    fn room_id(&self, _: &App) -> Option<u64>;
 7539    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7540    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7541    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7542    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7543    fn is_sharing_project(&self, _: &App) -> bool;
 7544    fn has_remote_participants(&self, _: &App) -> bool;
 7545    fn local_participant_is_guest(&self, _: &App) -> bool;
 7546    fn client(&self, _: &App) -> Arc<Client>;
 7547    fn share_on_join(&self, _: &App) -> bool;
 7548    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7549    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7550    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7551    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7552    fn join_project(
 7553        &self,
 7554        _: u64,
 7555        _: Arc<LanguageRegistry>,
 7556        _: Arc<dyn Fs>,
 7557        _: &mut App,
 7558    ) -> Task<Result<Entity<Project>>>;
 7559    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7560    fn subscribe(
 7561        &self,
 7562        _: &mut Window,
 7563        _: &mut Context<Workspace>,
 7564        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7565    ) -> Subscription;
 7566    fn create_shared_screen(
 7567        &self,
 7568        _: PeerId,
 7569        _: &Entity<Pane>,
 7570        _: &mut Window,
 7571        _: &mut App,
 7572    ) -> Option<Entity<SharedScreen>>;
 7573}
 7574
 7575#[derive(Clone)]
 7576pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7577impl Global for GlobalAnyActiveCall {}
 7578
 7579impl GlobalAnyActiveCall {
 7580    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7581        cx.try_global()
 7582    }
 7583
 7584    pub(crate) fn global(cx: &App) -> &Self {
 7585        cx.global()
 7586    }
 7587}
 7588
 7589pub fn merge_conflict_notification_id() -> NotificationId {
 7590    struct MergeConflictNotification;
 7591    NotificationId::unique::<MergeConflictNotification>()
 7592}
 7593
 7594/// Workspace-local view of a remote participant's location.
 7595#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7596pub enum ParticipantLocation {
 7597    SharedProject { project_id: u64 },
 7598    UnsharedProject,
 7599    External,
 7600}
 7601
 7602impl ParticipantLocation {
 7603    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7604        match location
 7605            .and_then(|l| l.variant)
 7606            .context("participant location was not provided")?
 7607        {
 7608            proto::participant_location::Variant::SharedProject(project) => {
 7609                Ok(Self::SharedProject {
 7610                    project_id: project.id,
 7611                })
 7612            }
 7613            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7614            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7615        }
 7616    }
 7617}
 7618/// Workspace-local view of a remote collaborator's state.
 7619/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7620#[derive(Clone)]
 7621pub struct RemoteCollaborator {
 7622    pub user: Arc<User>,
 7623    pub peer_id: PeerId,
 7624    pub location: ParticipantLocation,
 7625    pub participant_index: ParticipantIndex,
 7626}
 7627
 7628pub enum ActiveCallEvent {
 7629    ParticipantLocationChanged { participant_id: PeerId },
 7630    RemoteVideoTracksChanged { participant_id: PeerId },
 7631}
 7632
 7633fn leader_border_for_pane(
 7634    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7635    pane: &Entity<Pane>,
 7636    _: &Window,
 7637    cx: &App,
 7638) -> Option<Div> {
 7639    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7640        if state.pane() == pane {
 7641            Some((*leader_id, state))
 7642        } else {
 7643            None
 7644        }
 7645    })?;
 7646
 7647    let mut leader_color = match leader_id {
 7648        CollaboratorId::PeerId(leader_peer_id) => {
 7649            let leader = GlobalAnyActiveCall::try_global(cx)?
 7650                .0
 7651                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7652
 7653            cx.theme()
 7654                .players()
 7655                .color_for_participant(leader.participant_index.0)
 7656                .cursor
 7657        }
 7658        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7659    };
 7660    leader_color.fade_out(0.3);
 7661    Some(
 7662        div()
 7663            .absolute()
 7664            .size_full()
 7665            .left_0()
 7666            .top_0()
 7667            .border_2()
 7668            .border_color(leader_color),
 7669    )
 7670}
 7671
 7672fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7673    ZED_WINDOW_POSITION
 7674        .zip(*ZED_WINDOW_SIZE)
 7675        .map(|(position, size)| Bounds {
 7676            origin: position,
 7677            size,
 7678        })
 7679}
 7680
 7681fn open_items(
 7682    serialized_workspace: Option<SerializedWorkspace>,
 7683    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7684    window: &mut Window,
 7685    cx: &mut Context<Workspace>,
 7686) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7687    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7688        Workspace::load_workspace(
 7689            serialized_workspace,
 7690            project_paths_to_open
 7691                .iter()
 7692                .map(|(_, project_path)| project_path)
 7693                .cloned()
 7694                .collect(),
 7695            window,
 7696            cx,
 7697        )
 7698    });
 7699
 7700    cx.spawn_in(window, async move |workspace, cx| {
 7701        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7702
 7703        if let Some(restored_items) = restored_items {
 7704            let restored_items = restored_items.await?;
 7705
 7706            let restored_project_paths = restored_items
 7707                .iter()
 7708                .filter_map(|item| {
 7709                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7710                        .ok()
 7711                        .flatten()
 7712                })
 7713                .collect::<HashSet<_>>();
 7714
 7715            for restored_item in restored_items {
 7716                opened_items.push(restored_item.map(Ok));
 7717            }
 7718
 7719            project_paths_to_open
 7720                .iter_mut()
 7721                .for_each(|(_, project_path)| {
 7722                    if let Some(project_path_to_open) = project_path
 7723                        && restored_project_paths.contains(project_path_to_open)
 7724                    {
 7725                        *project_path = None;
 7726                    }
 7727                });
 7728        } else {
 7729            for _ in 0..project_paths_to_open.len() {
 7730                opened_items.push(None);
 7731            }
 7732        }
 7733        assert!(opened_items.len() == project_paths_to_open.len());
 7734
 7735        let tasks =
 7736            project_paths_to_open
 7737                .into_iter()
 7738                .enumerate()
 7739                .map(|(ix, (abs_path, project_path))| {
 7740                    let workspace = workspace.clone();
 7741                    cx.spawn(async move |cx| {
 7742                        let file_project_path = project_path?;
 7743                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7744                            workspace.project().update(cx, |project, cx| {
 7745                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7746                            })
 7747                        });
 7748
 7749                        // We only want to open file paths here. If one of the items
 7750                        // here is a directory, it was already opened further above
 7751                        // with a `find_or_create_worktree`.
 7752                        if let Ok(task) = abs_path_task
 7753                            && task.await.is_none_or(|p| p.is_file())
 7754                        {
 7755                            return Some((
 7756                                ix,
 7757                                workspace
 7758                                    .update_in(cx, |workspace, window, cx| {
 7759                                        workspace.open_path(
 7760                                            file_project_path,
 7761                                            None,
 7762                                            true,
 7763                                            window,
 7764                                            cx,
 7765                                        )
 7766                                    })
 7767                                    .log_err()?
 7768                                    .await,
 7769                            ));
 7770                        }
 7771                        None
 7772                    })
 7773                });
 7774
 7775        let tasks = tasks.collect::<Vec<_>>();
 7776
 7777        let tasks = futures::future::join_all(tasks);
 7778        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7779            opened_items[ix] = Some(path_open_result);
 7780        }
 7781
 7782        Ok(opened_items)
 7783    })
 7784}
 7785
 7786#[derive(Clone)]
 7787enum ActivateInDirectionTarget {
 7788    Pane(Entity<Pane>),
 7789    Dock(Entity<Dock>),
 7790    Sidebar(FocusHandle),
 7791}
 7792
 7793fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7794    window
 7795        .update(cx, |multi_workspace, _, cx| {
 7796            let workspace = multi_workspace.workspace().clone();
 7797            workspace.update(cx, |workspace, cx| {
 7798                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7799                    struct DatabaseFailedNotification;
 7800
 7801                    workspace.show_notification(
 7802                        NotificationId::unique::<DatabaseFailedNotification>(),
 7803                        cx,
 7804                        |cx| {
 7805                            cx.new(|cx| {
 7806                                MessageNotification::new("Failed to load the database file.", cx)
 7807                                    .primary_message("File an Issue")
 7808                                    .primary_icon(IconName::Plus)
 7809                                    .primary_on_click(|window, cx| {
 7810                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7811                                    })
 7812                            })
 7813                        },
 7814                    );
 7815                }
 7816            });
 7817        })
 7818        .log_err();
 7819}
 7820
 7821fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7822    if val == 0 {
 7823        ThemeSettings::get_global(cx).ui_font_size(cx)
 7824    } else {
 7825        px(val as f32)
 7826    }
 7827}
 7828
 7829fn adjust_active_dock_size_by_px(
 7830    px: Pixels,
 7831    workspace: &mut Workspace,
 7832    window: &mut Window,
 7833    cx: &mut Context<Workspace>,
 7834) {
 7835    let Some(active_dock) = workspace
 7836        .all_docks()
 7837        .into_iter()
 7838        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7839    else {
 7840        return;
 7841    };
 7842    let dock = active_dock.read(cx);
 7843    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 7844        return;
 7845    };
 7846    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 7847}
 7848
 7849fn adjust_open_docks_size_by_px(
 7850    px: Pixels,
 7851    workspace: &mut Workspace,
 7852    window: &mut Window,
 7853    cx: &mut Context<Workspace>,
 7854) {
 7855    let docks = workspace
 7856        .all_docks()
 7857        .into_iter()
 7858        .filter_map(|dock_entity| {
 7859            let dock = dock_entity.read(cx);
 7860            if dock.is_open() {
 7861                let dock_pos = dock.position();
 7862                let panel_size = workspace.dock_size(&dock, window, cx)?;
 7863                Some((dock_pos, panel_size + px))
 7864            } else {
 7865                None
 7866            }
 7867        })
 7868        .collect::<Vec<_>>();
 7869
 7870    for (position, new_size) in docks {
 7871        workspace.resize_dock(position, new_size, window, cx);
 7872    }
 7873}
 7874
 7875impl Focusable for Workspace {
 7876    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7877        self.active_pane.focus_handle(cx)
 7878    }
 7879}
 7880
 7881#[derive(Clone)]
 7882struct DraggedDock(DockPosition);
 7883
 7884impl Render for DraggedDock {
 7885    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7886        gpui::Empty
 7887    }
 7888}
 7889
 7890impl Render for Workspace {
 7891    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7892        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7893        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7894            log::info!("Rendered first frame");
 7895        }
 7896
 7897        let centered_layout = self.centered_layout
 7898            && self.center.panes().len() == 1
 7899            && self.active_item(cx).is_some();
 7900        let render_padding = |size| {
 7901            (size > 0.0).then(|| {
 7902                div()
 7903                    .h_full()
 7904                    .w(relative(size))
 7905                    .bg(cx.theme().colors().editor_background)
 7906                    .border_color(cx.theme().colors().pane_group_border)
 7907            })
 7908        };
 7909        let paddings = if centered_layout {
 7910            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7911            (
 7912                render_padding(Self::adjust_padding(
 7913                    settings.left_padding.map(|padding| padding.0),
 7914                )),
 7915                render_padding(Self::adjust_padding(
 7916                    settings.right_padding.map(|padding| padding.0),
 7917                )),
 7918            )
 7919        } else {
 7920            (None, None)
 7921        };
 7922        let ui_font = theme_settings::setup_ui_font(window, cx);
 7923
 7924        let theme = cx.theme().clone();
 7925        let colors = theme.colors();
 7926        let notification_entities = self
 7927            .notifications
 7928            .iter()
 7929            .map(|(_, notification)| notification.entity_id())
 7930            .collect::<Vec<_>>();
 7931        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7932
 7933        div()
 7934            .relative()
 7935            .size_full()
 7936            .flex()
 7937            .flex_col()
 7938            .font(ui_font)
 7939            .gap_0()
 7940                .justify_start()
 7941                .items_start()
 7942                .text_color(colors.text)
 7943                .overflow_hidden()
 7944                .children(self.titlebar_item.clone())
 7945                .on_modifiers_changed(move |_, _, cx| {
 7946                    for &id in &notification_entities {
 7947                        cx.notify(id);
 7948                    }
 7949                })
 7950                .child(
 7951                    div()
 7952                        .size_full()
 7953                        .relative()
 7954                        .flex_1()
 7955                        .flex()
 7956                        .flex_col()
 7957                        .child(
 7958                            div()
 7959                                .id("workspace")
 7960                                .bg(colors.background)
 7961                                .relative()
 7962                                .flex_1()
 7963                                .w_full()
 7964                                .flex()
 7965                                .flex_col()
 7966                                .overflow_hidden()
 7967                                .border_t_1()
 7968                                .border_b_1()
 7969                                .border_color(colors.border)
 7970                                .child({
 7971                                    let this = cx.entity();
 7972                                    canvas(
 7973                                        move |bounds, window, cx| {
 7974                                            this.update(cx, |this, cx| {
 7975                                                let bounds_changed = this.bounds != bounds;
 7976                                                this.bounds = bounds;
 7977
 7978                                                if bounds_changed {
 7979                                                    this.left_dock.update(cx, |dock, cx| {
 7980                                                        dock.clamp_panel_size(
 7981                                                            bounds.size.width,
 7982                                                            window,
 7983                                                            cx,
 7984                                                        )
 7985                                                    });
 7986
 7987                                                    this.right_dock.update(cx, |dock, cx| {
 7988                                                        dock.clamp_panel_size(
 7989                                                            bounds.size.width,
 7990                                                            window,
 7991                                                            cx,
 7992                                                        )
 7993                                                    });
 7994
 7995                                                    this.bottom_dock.update(cx, |dock, cx| {
 7996                                                        dock.clamp_panel_size(
 7997                                                            bounds.size.height,
 7998                                                            window,
 7999                                                            cx,
 8000                                                        )
 8001                                                    });
 8002                                                }
 8003                                            })
 8004                                        },
 8005                                        |_, _, _, _| {},
 8006                                    )
 8007                                    .absolute()
 8008                                    .size_full()
 8009                                })
 8010                                .when(self.zoomed.is_none(), |this| {
 8011                                    this.on_drag_move(cx.listener(
 8012                                        move |workspace,
 8013                                              e: &DragMoveEvent<DraggedDock>,
 8014                                              window,
 8015                                              cx| {
 8016                                            if workspace.previous_dock_drag_coordinates
 8017                                                != Some(e.event.position)
 8018                                            {
 8019                                                workspace.previous_dock_drag_coordinates =
 8020                                                    Some(e.event.position);
 8021
 8022                                                match e.drag(cx).0 {
 8023                                                    DockPosition::Left => {
 8024                                                        workspace.resize_left_dock(
 8025                                                            e.event.position.x
 8026                                                                - workspace.bounds.left(),
 8027                                                            window,
 8028                                                            cx,
 8029                                                        );
 8030                                                    }
 8031                                                    DockPosition::Right => {
 8032                                                        workspace.resize_right_dock(
 8033                                                            workspace.bounds.right()
 8034                                                                - e.event.position.x,
 8035                                                            window,
 8036                                                            cx,
 8037                                                        );
 8038                                                    }
 8039                                                    DockPosition::Bottom => {
 8040                                                        workspace.resize_bottom_dock(
 8041                                                            workspace.bounds.bottom()
 8042                                                                - e.event.position.y,
 8043                                                            window,
 8044                                                            cx,
 8045                                                        );
 8046                                                    }
 8047                                                };
 8048                                                workspace.serialize_workspace(window, cx);
 8049                                            }
 8050                                        },
 8051                                    ))
 8052
 8053                                })
 8054                                .child({
 8055                                    match bottom_dock_layout {
 8056                                        BottomDockLayout::Full => div()
 8057                                            .flex()
 8058                                            .flex_col()
 8059                                            .h_full()
 8060                                            .child(
 8061                                                div()
 8062                                                    .flex()
 8063                                                    .flex_row()
 8064                                                    .flex_1()
 8065                                                    .overflow_hidden()
 8066                                                    .children(self.render_dock(
 8067                                                        DockPosition::Left,
 8068                                                        &self.left_dock,
 8069                                                        window,
 8070                                                        cx,
 8071                                                    ))
 8072
 8073                                                    .child(
 8074                                                        div()
 8075                                                            .flex()
 8076                                                            .flex_col()
 8077                                                            .flex_1()
 8078                                                            .overflow_hidden()
 8079                                                            .child(
 8080                                                                h_flex()
 8081                                                                    .flex_1()
 8082                                                                    .when_some(
 8083                                                                        paddings.0,
 8084                                                                        |this, p| {
 8085                                                                            this.child(
 8086                                                                                p.border_r_1(),
 8087                                                                            )
 8088                                                                        },
 8089                                                                    )
 8090                                                                    .child(self.center.render(
 8091                                                                        self.zoomed.as_ref(),
 8092                                                                        &PaneRenderContext {
 8093                                                                            follower_states:
 8094                                                                                &self.follower_states,
 8095                                                                            active_call: self.active_call(),
 8096                                                                            active_pane: &self.active_pane,
 8097                                                                            app_state: &self.app_state,
 8098                                                                            project: &self.project,
 8099                                                                            workspace: &self.weak_self,
 8100                                                                        },
 8101                                                                        window,
 8102                                                                        cx,
 8103                                                                    ))
 8104                                                                    .when_some(
 8105                                                                        paddings.1,
 8106                                                                        |this, p| {
 8107                                                                            this.child(
 8108                                                                                p.border_l_1(),
 8109                                                                            )
 8110                                                                        },
 8111                                                                    ),
 8112                                                            ),
 8113                                                    )
 8114
 8115                                                    .children(self.render_dock(
 8116                                                        DockPosition::Right,
 8117                                                        &self.right_dock,
 8118                                                        window,
 8119                                                        cx,
 8120                                                    )),
 8121                                            )
 8122                                            .child(div().w_full().children(self.render_dock(
 8123                                                DockPosition::Bottom,
 8124                                                &self.bottom_dock,
 8125                                                window,
 8126                                                cx
 8127                                            ))),
 8128
 8129                                        BottomDockLayout::LeftAligned => div()
 8130                                            .flex()
 8131                                            .flex_row()
 8132                                            .h_full()
 8133                                            .child(
 8134                                                div()
 8135                                                    .flex()
 8136                                                    .flex_col()
 8137                                                    .flex_1()
 8138                                                    .h_full()
 8139                                                    .child(
 8140                                                        div()
 8141                                                            .flex()
 8142                                                            .flex_row()
 8143                                                            .flex_1()
 8144                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8145
 8146                                                            .child(
 8147                                                                div()
 8148                                                                    .flex()
 8149                                                                    .flex_col()
 8150                                                                    .flex_1()
 8151                                                                    .overflow_hidden()
 8152                                                                    .child(
 8153                                                                        h_flex()
 8154                                                                            .flex_1()
 8155                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8156                                                                            .child(self.center.render(
 8157                                                                                self.zoomed.as_ref(),
 8158                                                                                &PaneRenderContext {
 8159                                                                                    follower_states:
 8160                                                                                        &self.follower_states,
 8161                                                                                    active_call: self.active_call(),
 8162                                                                                    active_pane: &self.active_pane,
 8163                                                                                    app_state: &self.app_state,
 8164                                                                                    project: &self.project,
 8165                                                                                    workspace: &self.weak_self,
 8166                                                                                },
 8167                                                                                window,
 8168                                                                                cx,
 8169                                                                            ))
 8170                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8171                                                                    )
 8172                                                            )
 8173
 8174                                                    )
 8175                                                    .child(
 8176                                                        div()
 8177                                                            .w_full()
 8178                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8179                                                    ),
 8180                                            )
 8181                                            .children(self.render_dock(
 8182                                                DockPosition::Right,
 8183                                                &self.right_dock,
 8184                                                window,
 8185                                                cx,
 8186                                            )),
 8187                                        BottomDockLayout::RightAligned => div()
 8188                                            .flex()
 8189                                            .flex_row()
 8190                                            .h_full()
 8191                                            .children(self.render_dock(
 8192                                                DockPosition::Left,
 8193                                                &self.left_dock,
 8194                                                window,
 8195                                                cx,
 8196                                            ))
 8197
 8198                                            .child(
 8199                                                div()
 8200                                                    .flex()
 8201                                                    .flex_col()
 8202                                                    .flex_1()
 8203                                                    .h_full()
 8204                                                    .child(
 8205                                                        div()
 8206                                                            .flex()
 8207                                                            .flex_row()
 8208                                                            .flex_1()
 8209                                                            .child(
 8210                                                                div()
 8211                                                                    .flex()
 8212                                                                    .flex_col()
 8213                                                                    .flex_1()
 8214                                                                    .overflow_hidden()
 8215                                                                    .child(
 8216                                                                        h_flex()
 8217                                                                            .flex_1()
 8218                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8219                                                                            .child(self.center.render(
 8220                                                                                self.zoomed.as_ref(),
 8221                                                                                &PaneRenderContext {
 8222                                                                                    follower_states:
 8223                                                                                        &self.follower_states,
 8224                                                                                    active_call: self.active_call(),
 8225                                                                                    active_pane: &self.active_pane,
 8226                                                                                    app_state: &self.app_state,
 8227                                                                                    project: &self.project,
 8228                                                                                    workspace: &self.weak_self,
 8229                                                                                },
 8230                                                                                window,
 8231                                                                                cx,
 8232                                                                            ))
 8233                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8234                                                                    )
 8235                                                            )
 8236
 8237                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8238                                                    )
 8239                                                    .child(
 8240                                                        div()
 8241                                                            .w_full()
 8242                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8243                                                    ),
 8244                                            ),
 8245                                        BottomDockLayout::Contained => div()
 8246                                            .flex()
 8247                                            .flex_row()
 8248                                            .h_full()
 8249                                            .children(self.render_dock(
 8250                                                DockPosition::Left,
 8251                                                &self.left_dock,
 8252                                                window,
 8253                                                cx,
 8254                                            ))
 8255
 8256                                            .child(
 8257                                                div()
 8258                                                    .flex()
 8259                                                    .flex_col()
 8260                                                    .flex_1()
 8261                                                    .overflow_hidden()
 8262                                                    .child(
 8263                                                        h_flex()
 8264                                                            .flex_1()
 8265                                                            .when_some(paddings.0, |this, p| {
 8266                                                                this.child(p.border_r_1())
 8267                                                            })
 8268                                                            .child(self.center.render(
 8269                                                                self.zoomed.as_ref(),
 8270                                                                &PaneRenderContext {
 8271                                                                    follower_states:
 8272                                                                        &self.follower_states,
 8273                                                                    active_call: self.active_call(),
 8274                                                                    active_pane: &self.active_pane,
 8275                                                                    app_state: &self.app_state,
 8276                                                                    project: &self.project,
 8277                                                                    workspace: &self.weak_self,
 8278                                                                },
 8279                                                                window,
 8280                                                                cx,
 8281                                                            ))
 8282                                                            .when_some(paddings.1, |this, p| {
 8283                                                                this.child(p.border_l_1())
 8284                                                            }),
 8285                                                    )
 8286                                                    .children(self.render_dock(
 8287                                                        DockPosition::Bottom,
 8288                                                        &self.bottom_dock,
 8289                                                        window,
 8290                                                        cx,
 8291                                                    )),
 8292                                            )
 8293
 8294                                            .children(self.render_dock(
 8295                                                DockPosition::Right,
 8296                                                &self.right_dock,
 8297                                                window,
 8298                                                cx,
 8299                                            )),
 8300                                    }
 8301                                })
 8302                                .children(self.zoomed.as_ref().and_then(|view| {
 8303                                    let zoomed_view = view.upgrade()?;
 8304                                    let div = div()
 8305                                        .occlude()
 8306                                        .absolute()
 8307                                        .overflow_hidden()
 8308                                        .border_color(colors.border)
 8309                                        .bg(colors.background)
 8310                                        .child(zoomed_view)
 8311                                        .inset_0()
 8312                                        .shadow_lg();
 8313
 8314                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8315                                       return Some(div);
 8316                                    }
 8317
 8318                                    Some(match self.zoomed_position {
 8319                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8320                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8321                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8322                                        None => {
 8323                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8324                                        }
 8325                                    })
 8326                                }))
 8327                                .children(self.render_notifications(window, cx)),
 8328                        )
 8329                        .when(self.status_bar_visible(cx), |parent| {
 8330                            parent.child(self.status_bar.clone())
 8331                        })
 8332                        .child(self.toast_layer.clone()),
 8333                )
 8334    }
 8335}
 8336
 8337impl WorkspaceStore {
 8338    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8339        Self {
 8340            workspaces: Default::default(),
 8341            _subscriptions: vec![
 8342                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8343                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8344            ],
 8345            client,
 8346        }
 8347    }
 8348
 8349    pub fn update_followers(
 8350        &self,
 8351        project_id: Option<u64>,
 8352        update: proto::update_followers::Variant,
 8353        cx: &App,
 8354    ) -> Option<()> {
 8355        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8356        let room_id = active_call.0.room_id(cx)?;
 8357        self.client
 8358            .send(proto::UpdateFollowers {
 8359                room_id,
 8360                project_id,
 8361                variant: Some(update),
 8362            })
 8363            .log_err()
 8364    }
 8365
 8366    pub async fn handle_follow(
 8367        this: Entity<Self>,
 8368        envelope: TypedEnvelope<proto::Follow>,
 8369        mut cx: AsyncApp,
 8370    ) -> Result<proto::FollowResponse> {
 8371        this.update(&mut cx, |this, cx| {
 8372            let follower = Follower {
 8373                project_id: envelope.payload.project_id,
 8374                peer_id: envelope.original_sender_id()?,
 8375            };
 8376
 8377            let mut response = proto::FollowResponse::default();
 8378
 8379            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8380                let Some(workspace) = weak_workspace.upgrade() else {
 8381                    return false;
 8382                };
 8383                window_handle
 8384                    .update(cx, |_, window, cx| {
 8385                        workspace.update(cx, |workspace, cx| {
 8386                            let handler_response =
 8387                                workspace.handle_follow(follower.project_id, window, cx);
 8388                            if let Some(active_view) = handler_response.active_view
 8389                                && workspace.project.read(cx).remote_id() == follower.project_id
 8390                            {
 8391                                response.active_view = Some(active_view)
 8392                            }
 8393                        });
 8394                    })
 8395                    .is_ok()
 8396            });
 8397
 8398            Ok(response)
 8399        })
 8400    }
 8401
 8402    async fn handle_update_followers(
 8403        this: Entity<Self>,
 8404        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8405        mut cx: AsyncApp,
 8406    ) -> Result<()> {
 8407        let leader_id = envelope.original_sender_id()?;
 8408        let update = envelope.payload;
 8409
 8410        this.update(&mut cx, |this, cx| {
 8411            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8412                let Some(workspace) = weak_workspace.upgrade() else {
 8413                    return false;
 8414                };
 8415                window_handle
 8416                    .update(cx, |_, window, cx| {
 8417                        workspace.update(cx, |workspace, cx| {
 8418                            let project_id = workspace.project.read(cx).remote_id();
 8419                            if update.project_id != project_id && update.project_id.is_some() {
 8420                                return;
 8421                            }
 8422                            workspace.handle_update_followers(
 8423                                leader_id,
 8424                                update.clone(),
 8425                                window,
 8426                                cx,
 8427                            );
 8428                        });
 8429                    })
 8430                    .is_ok()
 8431            });
 8432            Ok(())
 8433        })
 8434    }
 8435
 8436    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8437        self.workspaces.iter().map(|(_, weak)| weak)
 8438    }
 8439
 8440    pub fn workspaces_with_windows(
 8441        &self,
 8442    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8443        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8444    }
 8445}
 8446
 8447impl ViewId {
 8448    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8449        Ok(Self {
 8450            creator: message
 8451                .creator
 8452                .map(CollaboratorId::PeerId)
 8453                .context("creator is missing")?,
 8454            id: message.id,
 8455        })
 8456    }
 8457
 8458    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8459        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8460            Some(proto::ViewId {
 8461                creator: Some(peer_id),
 8462                id: self.id,
 8463            })
 8464        } else {
 8465            None
 8466        }
 8467    }
 8468}
 8469
 8470impl FollowerState {
 8471    fn pane(&self) -> &Entity<Pane> {
 8472        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8473    }
 8474}
 8475
 8476pub trait WorkspaceHandle {
 8477    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8478}
 8479
 8480impl WorkspaceHandle for Entity<Workspace> {
 8481    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8482        self.read(cx)
 8483            .worktrees(cx)
 8484            .flat_map(|worktree| {
 8485                let worktree_id = worktree.read(cx).id();
 8486                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8487                    worktree_id,
 8488                    path: f.path.clone(),
 8489                })
 8490            })
 8491            .collect::<Vec<_>>()
 8492    }
 8493}
 8494
 8495pub async fn last_opened_workspace_location(
 8496    db: &WorkspaceDb,
 8497    fs: &dyn fs::Fs,
 8498) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8499    db.last_workspace(fs)
 8500        .await
 8501        .log_err()
 8502        .flatten()
 8503        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8504}
 8505
 8506pub async fn last_session_workspace_locations(
 8507    db: &WorkspaceDb,
 8508    last_session_id: &str,
 8509    last_session_window_stack: Option<Vec<WindowId>>,
 8510    fs: &dyn fs::Fs,
 8511) -> Option<Vec<SessionWorkspace>> {
 8512    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8513        .await
 8514        .log_err()
 8515}
 8516
 8517pub struct MultiWorkspaceRestoreResult {
 8518    pub window_handle: WindowHandle<MultiWorkspace>,
 8519    pub errors: Vec<anyhow::Error>,
 8520}
 8521
 8522pub async fn restore_multiworkspace(
 8523    multi_workspace: SerializedMultiWorkspace,
 8524    app_state: Arc<AppState>,
 8525    cx: &mut AsyncApp,
 8526) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 8527    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 8528    let mut group_iter = workspaces.into_iter();
 8529    let first = group_iter
 8530        .next()
 8531        .context("window group must not be empty")?;
 8532
 8533    let window_handle = if first.paths.is_empty() {
 8534        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8535            .await?
 8536    } else {
 8537        let OpenResult { window, .. } = cx
 8538            .update(|cx| {
 8539                Workspace::new_local(
 8540                    first.paths.paths().to_vec(),
 8541                    app_state.clone(),
 8542                    None,
 8543                    None,
 8544                    None,
 8545                    true,
 8546                    cx,
 8547                )
 8548            })
 8549            .await?;
 8550        window
 8551    };
 8552
 8553    let mut errors = Vec::new();
 8554
 8555    for session_workspace in group_iter {
 8556        let error = if session_workspace.paths.is_empty() {
 8557            cx.update(|cx| {
 8558                open_workspace_by_id(
 8559                    session_workspace.workspace_id,
 8560                    app_state.clone(),
 8561                    Some(window_handle),
 8562                    cx,
 8563                )
 8564            })
 8565            .await
 8566            .err()
 8567        } else {
 8568            cx.update(|cx| {
 8569                Workspace::new_local(
 8570                    session_workspace.paths.paths().to_vec(),
 8571                    app_state.clone(),
 8572                    Some(window_handle),
 8573                    None,
 8574                    None,
 8575                    false,
 8576                    cx,
 8577                )
 8578            })
 8579            .await
 8580            .err()
 8581        };
 8582
 8583        if let Some(error) = error {
 8584            errors.push(error);
 8585        }
 8586    }
 8587
 8588    if let Some(target_id) = state.active_workspace_id {
 8589        window_handle
 8590            .update(cx, |multi_workspace, window, cx| {
 8591                let target_index = multi_workspace
 8592                    .workspaces()
 8593                    .iter()
 8594                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8595                if let Some(index) = target_index {
 8596                    multi_workspace.activate_index(index, window, cx);
 8597                } else if !multi_workspace.workspaces().is_empty() {
 8598                    multi_workspace.activate_index(0, window, cx);
 8599                }
 8600            })
 8601            .ok();
 8602    } else {
 8603        window_handle
 8604            .update(cx, |multi_workspace, window, cx| {
 8605                if !multi_workspace.workspaces().is_empty() {
 8606                    multi_workspace.activate_index(0, window, cx);
 8607                }
 8608            })
 8609            .ok();
 8610    }
 8611
 8612    if state.sidebar_open {
 8613        window_handle
 8614            .update(cx, |multi_workspace, _, cx| {
 8615                multi_workspace.open_sidebar(cx);
 8616            })
 8617            .ok();
 8618    }
 8619
 8620    window_handle
 8621        .update(cx, |_, window, _cx| {
 8622            window.activate_window();
 8623        })
 8624        .ok();
 8625
 8626    Ok(MultiWorkspaceRestoreResult {
 8627        window_handle,
 8628        errors,
 8629    })
 8630}
 8631
 8632actions!(
 8633    collab,
 8634    [
 8635        /// Opens the channel notes for the current call.
 8636        ///
 8637        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8638        /// channel in the collab panel.
 8639        ///
 8640        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8641        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8642        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8643        OpenChannelNotes,
 8644        /// Mutes your microphone.
 8645        Mute,
 8646        /// Deafens yourself (mute both microphone and speakers).
 8647        Deafen,
 8648        /// Leaves the current call.
 8649        LeaveCall,
 8650        /// Shares the current project with collaborators.
 8651        ShareProject,
 8652        /// Shares your screen with collaborators.
 8653        ScreenShare,
 8654        /// Copies the current room name and session id for debugging purposes.
 8655        CopyRoomId,
 8656    ]
 8657);
 8658
 8659/// Opens the channel notes for a specific channel by its ID.
 8660#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8661#[action(namespace = collab)]
 8662#[serde(deny_unknown_fields)]
 8663pub struct OpenChannelNotesById {
 8664    pub channel_id: u64,
 8665}
 8666
 8667actions!(
 8668    zed,
 8669    [
 8670        /// Opens the Zed log file.
 8671        OpenLog,
 8672        /// Reveals the Zed log file in the system file manager.
 8673        RevealLogInFileManager
 8674    ]
 8675);
 8676
 8677async fn join_channel_internal(
 8678    channel_id: ChannelId,
 8679    app_state: &Arc<AppState>,
 8680    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8681    requesting_workspace: Option<WeakEntity<Workspace>>,
 8682    active_call: &dyn AnyActiveCall,
 8683    cx: &mut AsyncApp,
 8684) -> Result<bool> {
 8685    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8686        if !active_call.is_in_room(cx) {
 8687            return (false, false);
 8688        }
 8689
 8690        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8691        let should_prompt = active_call.is_sharing_project(cx)
 8692            && active_call.has_remote_participants(cx)
 8693            && !already_in_channel;
 8694        (should_prompt, already_in_channel)
 8695    });
 8696
 8697    if already_in_channel {
 8698        let task = cx.update(|cx| {
 8699            if let Some((project, host)) = active_call.most_active_project(cx) {
 8700                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8701            } else {
 8702                None
 8703            }
 8704        });
 8705        if let Some(task) = task {
 8706            task.await?;
 8707        }
 8708        return anyhow::Ok(true);
 8709    }
 8710
 8711    if should_prompt {
 8712        if let Some(multi_workspace) = requesting_window {
 8713            let answer = multi_workspace
 8714                .update(cx, |_, window, cx| {
 8715                    window.prompt(
 8716                        PromptLevel::Warning,
 8717                        "Do you want to switch channels?",
 8718                        Some("Leaving this call will unshare your current project."),
 8719                        &["Yes, Join Channel", "Cancel"],
 8720                        cx,
 8721                    )
 8722                })?
 8723                .await;
 8724
 8725            if answer == Ok(1) {
 8726                return Ok(false);
 8727            }
 8728        } else {
 8729            return Ok(false);
 8730        }
 8731    }
 8732
 8733    let client = cx.update(|cx| active_call.client(cx));
 8734
 8735    let mut client_status = client.status();
 8736
 8737    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8738    'outer: loop {
 8739        let Some(status) = client_status.recv().await else {
 8740            anyhow::bail!("error connecting");
 8741        };
 8742
 8743        match status {
 8744            Status::Connecting
 8745            | Status::Authenticating
 8746            | Status::Authenticated
 8747            | Status::Reconnecting
 8748            | Status::Reauthenticating
 8749            | Status::Reauthenticated => continue,
 8750            Status::Connected { .. } => break 'outer,
 8751            Status::SignedOut | Status::AuthenticationError => {
 8752                return Err(ErrorCode::SignedOut.into());
 8753            }
 8754            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8755            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8756                return Err(ErrorCode::Disconnected.into());
 8757            }
 8758        }
 8759    }
 8760
 8761    let joined = cx
 8762        .update(|cx| active_call.join_channel(channel_id, cx))
 8763        .await?;
 8764
 8765    if !joined {
 8766        return anyhow::Ok(true);
 8767    }
 8768
 8769    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8770
 8771    let task = cx.update(|cx| {
 8772        if let Some((project, host)) = active_call.most_active_project(cx) {
 8773            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8774        }
 8775
 8776        // If you are the first to join a channel, see if you should share your project.
 8777        if !active_call.has_remote_participants(cx)
 8778            && !active_call.local_participant_is_guest(cx)
 8779            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8780        {
 8781            let project = workspace.update(cx, |workspace, cx| {
 8782                let project = workspace.project.read(cx);
 8783
 8784                if !active_call.share_on_join(cx) {
 8785                    return None;
 8786                }
 8787
 8788                if (project.is_local() || project.is_via_remote_server())
 8789                    && project.visible_worktrees(cx).any(|tree| {
 8790                        tree.read(cx)
 8791                            .root_entry()
 8792                            .is_some_and(|entry| entry.is_dir())
 8793                    })
 8794                {
 8795                    Some(workspace.project.clone())
 8796                } else {
 8797                    None
 8798                }
 8799            });
 8800            if let Some(project) = project {
 8801                let share_task = active_call.share_project(project, cx);
 8802                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8803                    share_task.await?;
 8804                    Ok(())
 8805                }));
 8806            }
 8807        }
 8808
 8809        None
 8810    });
 8811    if let Some(task) = task {
 8812        task.await?;
 8813        return anyhow::Ok(true);
 8814    }
 8815    anyhow::Ok(false)
 8816}
 8817
 8818pub fn join_channel(
 8819    channel_id: ChannelId,
 8820    app_state: Arc<AppState>,
 8821    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8822    requesting_workspace: Option<WeakEntity<Workspace>>,
 8823    cx: &mut App,
 8824) -> Task<Result<()>> {
 8825    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8826    cx.spawn(async move |cx| {
 8827        let result = join_channel_internal(
 8828            channel_id,
 8829            &app_state,
 8830            requesting_window,
 8831            requesting_workspace,
 8832            &*active_call.0,
 8833            cx,
 8834        )
 8835        .await;
 8836
 8837        // join channel succeeded, and opened a window
 8838        if matches!(result, Ok(true)) {
 8839            return anyhow::Ok(());
 8840        }
 8841
 8842        // find an existing workspace to focus and show call controls
 8843        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8844        if active_window.is_none() {
 8845            // no open workspaces, make one to show the error in (blergh)
 8846            let OpenResult {
 8847                window: window_handle,
 8848                ..
 8849            } = cx
 8850                .update(|cx| {
 8851                    Workspace::new_local(
 8852                        vec![],
 8853                        app_state.clone(),
 8854                        requesting_window,
 8855                        None,
 8856                        None,
 8857                        true,
 8858                        cx,
 8859                    )
 8860                })
 8861                .await?;
 8862
 8863            window_handle
 8864                .update(cx, |_, window, _cx| {
 8865                    window.activate_window();
 8866                })
 8867                .ok();
 8868
 8869            if result.is_ok() {
 8870                cx.update(|cx| {
 8871                    cx.dispatch_action(&OpenChannelNotes);
 8872                });
 8873            }
 8874
 8875            active_window = Some(window_handle);
 8876        }
 8877
 8878        if let Err(err) = result {
 8879            log::error!("failed to join channel: {}", err);
 8880            if let Some(active_window) = active_window {
 8881                active_window
 8882                    .update(cx, |_, window, cx| {
 8883                        let detail: SharedString = match err.error_code() {
 8884                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8885                            ErrorCode::UpgradeRequired => concat!(
 8886                                "Your are running an unsupported version of Zed. ",
 8887                                "Please update to continue."
 8888                            )
 8889                            .into(),
 8890                            ErrorCode::NoSuchChannel => concat!(
 8891                                "No matching channel was found. ",
 8892                                "Please check the link and try again."
 8893                            )
 8894                            .into(),
 8895                            ErrorCode::Forbidden => concat!(
 8896                                "This channel is private, and you do not have access. ",
 8897                                "Please ask someone to add you and try again."
 8898                            )
 8899                            .into(),
 8900                            ErrorCode::Disconnected => {
 8901                                "Please check your internet connection and try again.".into()
 8902                            }
 8903                            _ => format!("{}\n\nPlease try again.", err).into(),
 8904                        };
 8905                        window.prompt(
 8906                            PromptLevel::Critical,
 8907                            "Failed to join channel",
 8908                            Some(&detail),
 8909                            &["Ok"],
 8910                            cx,
 8911                        )
 8912                    })?
 8913                    .await
 8914                    .ok();
 8915            }
 8916        }
 8917
 8918        // return ok, we showed the error to the user.
 8919        anyhow::Ok(())
 8920    })
 8921}
 8922
 8923pub async fn get_any_active_multi_workspace(
 8924    app_state: Arc<AppState>,
 8925    mut cx: AsyncApp,
 8926) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8927    // find an existing workspace to focus and show call controls
 8928    let active_window = activate_any_workspace_window(&mut cx);
 8929    if active_window.is_none() {
 8930        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, true, cx))
 8931            .await?;
 8932    }
 8933    activate_any_workspace_window(&mut cx).context("could not open zed")
 8934}
 8935
 8936fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8937    cx.update(|cx| {
 8938        if let Some(workspace_window) = cx
 8939            .active_window()
 8940            .and_then(|window| window.downcast::<MultiWorkspace>())
 8941        {
 8942            return Some(workspace_window);
 8943        }
 8944
 8945        for window in cx.windows() {
 8946            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8947                workspace_window
 8948                    .update(cx, |_, window, _| window.activate_window())
 8949                    .ok();
 8950                return Some(workspace_window);
 8951            }
 8952        }
 8953        None
 8954    })
 8955}
 8956
 8957pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8958    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 8959}
 8960
 8961pub fn workspace_windows_for_location(
 8962    serialized_location: &SerializedWorkspaceLocation,
 8963    cx: &App,
 8964) -> Vec<WindowHandle<MultiWorkspace>> {
 8965    cx.windows()
 8966        .into_iter()
 8967        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8968        .filter(|multi_workspace| {
 8969            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 8970                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 8971                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 8972                }
 8973                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 8974                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 8975                    a.distro_name == b.distro_name
 8976                }
 8977                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 8978                    a.container_id == b.container_id
 8979                }
 8980                #[cfg(any(test, feature = "test-support"))]
 8981                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 8982                    a.id == b.id
 8983                }
 8984                _ => false,
 8985            };
 8986
 8987            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8988                multi_workspace.workspaces().iter().any(|workspace| {
 8989                    match workspace.read(cx).workspace_location(cx) {
 8990                        WorkspaceLocation::Location(location, _) => {
 8991                            match (&location, serialized_location) {
 8992                                (
 8993                                    SerializedWorkspaceLocation::Local,
 8994                                    SerializedWorkspaceLocation::Local,
 8995                                ) => true,
 8996                                (
 8997                                    SerializedWorkspaceLocation::Remote(a),
 8998                                    SerializedWorkspaceLocation::Remote(b),
 8999                                ) => same_host(a, b),
 9000                                _ => false,
 9001                            }
 9002                        }
 9003                        _ => false,
 9004                    }
 9005                })
 9006            })
 9007        })
 9008        .collect()
 9009}
 9010
 9011pub async fn find_existing_workspace(
 9012    abs_paths: &[PathBuf],
 9013    open_options: &OpenOptions,
 9014    location: &SerializedWorkspaceLocation,
 9015    cx: &mut AsyncApp,
 9016) -> (
 9017    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9018    OpenVisible,
 9019) {
 9020    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9021    let mut open_visible = OpenVisible::All;
 9022    let mut best_match = None;
 9023
 9024    if open_options.open_new_workspace != Some(true) {
 9025        cx.update(|cx| {
 9026            for window in workspace_windows_for_location(location, cx) {
 9027                if let Ok(multi_workspace) = window.read(cx) {
 9028                    for workspace in multi_workspace.workspaces() {
 9029                        let project = workspace.read(cx).project.read(cx);
 9030                        let m = project.visibility_for_paths(
 9031                            abs_paths,
 9032                            open_options.open_new_workspace == None,
 9033                            cx,
 9034                        );
 9035                        if m > best_match {
 9036                            existing = Some((window, workspace.clone()));
 9037                            best_match = m;
 9038                        } else if best_match.is_none()
 9039                            && open_options.open_new_workspace == Some(false)
 9040                        {
 9041                            existing = Some((window, workspace.clone()))
 9042                        }
 9043                    }
 9044                }
 9045            }
 9046        });
 9047
 9048        let all_paths_are_files = existing
 9049            .as_ref()
 9050            .and_then(|(_, target_workspace)| {
 9051                cx.update(|cx| {
 9052                    let workspace = target_workspace.read(cx);
 9053                    let project = workspace.project.read(cx);
 9054                    let path_style = workspace.path_style(cx);
 9055                    Some(!abs_paths.iter().any(|path| {
 9056                        let path = util::paths::SanitizedPath::new(path);
 9057                        project.worktrees(cx).any(|worktree| {
 9058                            let worktree = worktree.read(cx);
 9059                            let abs_path = worktree.abs_path();
 9060                            path_style
 9061                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9062                                .and_then(|rel| worktree.entry_for_path(&rel))
 9063                                .is_some_and(|e| e.is_dir())
 9064                        })
 9065                    }))
 9066                })
 9067            })
 9068            .unwrap_or(false);
 9069
 9070        if open_options.open_new_workspace.is_none()
 9071            && existing.is_some()
 9072            && open_options.wait
 9073            && all_paths_are_files
 9074        {
 9075            cx.update(|cx| {
 9076                let windows = workspace_windows_for_location(location, cx);
 9077                let window = cx
 9078                    .active_window()
 9079                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9080                    .filter(|window| windows.contains(window))
 9081                    .or_else(|| windows.into_iter().next());
 9082                if let Some(window) = window {
 9083                    if let Ok(multi_workspace) = window.read(cx) {
 9084                        let active_workspace = multi_workspace.workspace().clone();
 9085                        existing = Some((window, active_workspace));
 9086                        open_visible = OpenVisible::None;
 9087                    }
 9088                }
 9089            });
 9090        }
 9091    }
 9092    (existing, open_visible)
 9093}
 9094
 9095#[derive(Default, Clone)]
 9096pub struct OpenOptions {
 9097    pub visible: Option<OpenVisible>,
 9098    pub focus: Option<bool>,
 9099    pub open_new_workspace: Option<bool>,
 9100    pub wait: bool,
 9101    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 9102    pub env: Option<HashMap<String, String>>,
 9103}
 9104
 9105/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9106/// or [`Workspace::open_workspace_for_paths`].
 9107pub struct OpenResult {
 9108    pub window: WindowHandle<MultiWorkspace>,
 9109    pub workspace: Entity<Workspace>,
 9110    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9111}
 9112
 9113/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9114pub fn open_workspace_by_id(
 9115    workspace_id: WorkspaceId,
 9116    app_state: Arc<AppState>,
 9117    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9118    cx: &mut App,
 9119) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9120    let project_handle = Project::local(
 9121        app_state.client.clone(),
 9122        app_state.node_runtime.clone(),
 9123        app_state.user_store.clone(),
 9124        app_state.languages.clone(),
 9125        app_state.fs.clone(),
 9126        None,
 9127        project::LocalProjectFlags {
 9128            init_worktree_trust: true,
 9129            ..project::LocalProjectFlags::default()
 9130        },
 9131        cx,
 9132    );
 9133
 9134    let db = WorkspaceDb::global(cx);
 9135    let kvp = db::kvp::KeyValueStore::global(cx);
 9136    cx.spawn(async move |cx| {
 9137        let serialized_workspace = db
 9138            .workspace_for_id(workspace_id)
 9139            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9140
 9141        let centered_layout = serialized_workspace.centered_layout;
 9142
 9143        let (window, workspace) = if let Some(window) = requesting_window {
 9144            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9145                let workspace = cx.new(|cx| {
 9146                    let mut workspace = Workspace::new(
 9147                        Some(workspace_id),
 9148                        project_handle.clone(),
 9149                        app_state.clone(),
 9150                        window,
 9151                        cx,
 9152                    );
 9153                    workspace.centered_layout = centered_layout;
 9154                    workspace
 9155                });
 9156                multi_workspace.add_workspace(workspace.clone(), cx);
 9157                workspace
 9158            })?;
 9159            (window, workspace)
 9160        } else {
 9161            let window_bounds_override = window_bounds_env_override();
 9162
 9163            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9164                (Some(WindowBounds::Windowed(bounds)), None)
 9165            } else if let Some(display) = serialized_workspace.display
 9166                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9167            {
 9168                (Some(bounds.0), Some(display))
 9169            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9170                (Some(bounds), Some(display))
 9171            } else {
 9172                (None, None)
 9173            };
 9174
 9175            let options = cx.update(|cx| {
 9176                let mut options = (app_state.build_window_options)(display, cx);
 9177                options.window_bounds = window_bounds;
 9178                options
 9179            });
 9180
 9181            let window = cx.open_window(options, {
 9182                let app_state = app_state.clone();
 9183                let project_handle = project_handle.clone();
 9184                move |window, cx| {
 9185                    let workspace = cx.new(|cx| {
 9186                        let mut workspace = Workspace::new(
 9187                            Some(workspace_id),
 9188                            project_handle,
 9189                            app_state,
 9190                            window,
 9191                            cx,
 9192                        );
 9193                        workspace.centered_layout = centered_layout;
 9194                        workspace
 9195                    });
 9196                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9197                }
 9198            })?;
 9199
 9200            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9201                multi_workspace.workspace().clone()
 9202            })?;
 9203
 9204            (window, workspace)
 9205        };
 9206
 9207        notify_if_database_failed(window, cx);
 9208
 9209        // Restore items from the serialized workspace
 9210        window
 9211            .update(cx, |_, window, cx| {
 9212                workspace.update(cx, |_workspace, cx| {
 9213                    open_items(Some(serialized_workspace), vec![], window, cx)
 9214                })
 9215            })?
 9216            .await?;
 9217
 9218        window.update(cx, |_, window, cx| {
 9219            workspace.update(cx, |workspace, cx| {
 9220                workspace.serialize_workspace(window, cx);
 9221            });
 9222        })?;
 9223
 9224        Ok(window)
 9225    })
 9226}
 9227
 9228#[allow(clippy::type_complexity)]
 9229pub fn open_paths(
 9230    abs_paths: &[PathBuf],
 9231    app_state: Arc<AppState>,
 9232    open_options: OpenOptions,
 9233    cx: &mut App,
 9234) -> Task<anyhow::Result<OpenResult>> {
 9235    let abs_paths = abs_paths.to_vec();
 9236    #[cfg(target_os = "windows")]
 9237    let wsl_path = abs_paths
 9238        .iter()
 9239        .find_map(|p| util::paths::WslPath::from_path(p));
 9240
 9241    cx.spawn(async move |cx| {
 9242        let (mut existing, mut open_visible) = find_existing_workspace(
 9243            &abs_paths,
 9244            &open_options,
 9245            &SerializedWorkspaceLocation::Local,
 9246            cx,
 9247        )
 9248        .await;
 9249
 9250        // Fallback: if no workspace contains the paths and all paths are files,
 9251        // prefer an existing local workspace window (active window first).
 9252        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9253            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9254            let all_metadatas = futures::future::join_all(all_paths)
 9255                .await
 9256                .into_iter()
 9257                .filter_map(|result| result.ok().flatten())
 9258                .collect::<Vec<_>>();
 9259
 9260            if all_metadatas.iter().all(|file| !file.is_dir) {
 9261                cx.update(|cx| {
 9262                    let windows = workspace_windows_for_location(
 9263                        &SerializedWorkspaceLocation::Local,
 9264                        cx,
 9265                    );
 9266                    let window = cx
 9267                        .active_window()
 9268                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9269                        .filter(|window| windows.contains(window))
 9270                        .or_else(|| windows.into_iter().next());
 9271                    if let Some(window) = window {
 9272                        if let Ok(multi_workspace) = window.read(cx) {
 9273                            let active_workspace = multi_workspace.workspace().clone();
 9274                            existing = Some((window, active_workspace));
 9275                            open_visible = OpenVisible::None;
 9276                        }
 9277                    }
 9278                });
 9279            }
 9280        }
 9281
 9282        let result = if let Some((existing, target_workspace)) = existing {
 9283            let open_task = existing
 9284                .update(cx, |multi_workspace, window, cx| {
 9285                    window.activate_window();
 9286                    multi_workspace.activate(target_workspace.clone(), cx);
 9287                    target_workspace.update(cx, |workspace, cx| {
 9288                        workspace.open_paths(
 9289                            abs_paths,
 9290                            OpenOptions {
 9291                                visible: Some(open_visible),
 9292                                ..Default::default()
 9293                            },
 9294                            None,
 9295                            window,
 9296                            cx,
 9297                        )
 9298                    })
 9299                })?
 9300                .await;
 9301
 9302            _ = existing.update(cx, |multi_workspace, _, cx| {
 9303                let workspace = multi_workspace.workspace().clone();
 9304                workspace.update(cx, |workspace, cx| {
 9305                    for item in open_task.iter().flatten() {
 9306                        if let Err(e) = item {
 9307                            workspace.show_error(&e, cx);
 9308                        }
 9309                    }
 9310                });
 9311            });
 9312
 9313            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9314        } else {
 9315            let result = cx
 9316                .update(move |cx| {
 9317                    Workspace::new_local(
 9318                        abs_paths,
 9319                        app_state.clone(),
 9320                        open_options.replace_window,
 9321                        open_options.env,
 9322                        None,
 9323                        true,
 9324                        cx,
 9325                    )
 9326                })
 9327                .await;
 9328
 9329            if let Ok(ref result) = result {
 9330                result.window
 9331                    .update(cx, |_, window, _cx| {
 9332                        window.activate_window();
 9333                    })
 9334                    .log_err();
 9335            }
 9336
 9337            result
 9338        };
 9339
 9340        #[cfg(target_os = "windows")]
 9341        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9342            && let Ok(ref result) = result
 9343        {
 9344            result.window
 9345                .update(cx, move |multi_workspace, _window, cx| {
 9346                    struct OpenInWsl;
 9347                    let workspace = multi_workspace.workspace().clone();
 9348                    workspace.update(cx, |workspace, cx| {
 9349                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9350                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9351                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9352                            cx.new(move |cx| {
 9353                                MessageNotification::new(msg, cx)
 9354                                    .primary_message("Open in WSL")
 9355                                    .primary_icon(IconName::FolderOpen)
 9356                                    .primary_on_click(move |window, cx| {
 9357                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9358                                                distro: remote::WslConnectionOptions {
 9359                                                        distro_name: distro.clone(),
 9360                                                    user: None,
 9361                                                },
 9362                                                paths: vec![path.clone().into()],
 9363                                            }), cx)
 9364                                    })
 9365                            })
 9366                        });
 9367                    });
 9368                })
 9369                .unwrap();
 9370        };
 9371        result
 9372    })
 9373}
 9374
 9375pub fn open_new(
 9376    open_options: OpenOptions,
 9377    app_state: Arc<AppState>,
 9378    cx: &mut App,
 9379    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9380) -> Task<anyhow::Result<()>> {
 9381    let task = Workspace::new_local(
 9382        Vec::new(),
 9383        app_state,
 9384        open_options.replace_window,
 9385        open_options.env,
 9386        Some(Box::new(init)),
 9387        true,
 9388        cx,
 9389    );
 9390    cx.spawn(async move |cx| {
 9391        let OpenResult { window, .. } = task.await?;
 9392        window
 9393            .update(cx, |_, window, _cx| {
 9394                window.activate_window();
 9395            })
 9396            .ok();
 9397        Ok(())
 9398    })
 9399}
 9400
 9401pub fn create_and_open_local_file(
 9402    path: &'static Path,
 9403    window: &mut Window,
 9404    cx: &mut Context<Workspace>,
 9405    default_content: impl 'static + Send + FnOnce() -> Rope,
 9406) -> Task<Result<Box<dyn ItemHandle>>> {
 9407    cx.spawn_in(window, async move |workspace, cx| {
 9408        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9409        if !fs.is_file(path).await {
 9410            fs.create_file(path, Default::default()).await?;
 9411            fs.save(path, &default_content(), Default::default())
 9412                .await?;
 9413        }
 9414
 9415        workspace
 9416            .update_in(cx, |workspace, window, cx| {
 9417                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9418                    let path = workspace
 9419                        .project
 9420                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9421                    cx.spawn_in(window, async move |workspace, cx| {
 9422                        let path = path.await?;
 9423
 9424                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9425
 9426                        let mut items = workspace
 9427                            .update_in(cx, |workspace, window, cx| {
 9428                                workspace.open_paths(
 9429                                    vec![path.to_path_buf()],
 9430                                    OpenOptions {
 9431                                        visible: Some(OpenVisible::None),
 9432                                        ..Default::default()
 9433                                    },
 9434                                    None,
 9435                                    window,
 9436                                    cx,
 9437                                )
 9438                            })?
 9439                            .await;
 9440                        let item = items.pop().flatten();
 9441                        item.with_context(|| format!("path {path:?} is not a file"))?
 9442                    })
 9443                })
 9444            })?
 9445            .await?
 9446            .await
 9447    })
 9448}
 9449
 9450pub fn open_remote_project_with_new_connection(
 9451    window: WindowHandle<MultiWorkspace>,
 9452    remote_connection: Arc<dyn RemoteConnection>,
 9453    cancel_rx: oneshot::Receiver<()>,
 9454    delegate: Arc<dyn RemoteClientDelegate>,
 9455    app_state: Arc<AppState>,
 9456    paths: Vec<PathBuf>,
 9457    cx: &mut App,
 9458) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9459    cx.spawn(async move |cx| {
 9460        let (workspace_id, serialized_workspace) =
 9461            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9462                .await?;
 9463
 9464        let session = match cx
 9465            .update(|cx| {
 9466                remote::RemoteClient::new(
 9467                    ConnectionIdentifier::Workspace(workspace_id.0),
 9468                    remote_connection,
 9469                    cancel_rx,
 9470                    delegate,
 9471                    cx,
 9472                )
 9473            })
 9474            .await?
 9475        {
 9476            Some(result) => result,
 9477            None => return Ok(Vec::new()),
 9478        };
 9479
 9480        let project = cx.update(|cx| {
 9481            project::Project::remote(
 9482                session,
 9483                app_state.client.clone(),
 9484                app_state.node_runtime.clone(),
 9485                app_state.user_store.clone(),
 9486                app_state.languages.clone(),
 9487                app_state.fs.clone(),
 9488                true,
 9489                cx,
 9490            )
 9491        });
 9492
 9493        open_remote_project_inner(
 9494            project,
 9495            paths,
 9496            workspace_id,
 9497            serialized_workspace,
 9498            app_state,
 9499            window,
 9500            cx,
 9501        )
 9502        .await
 9503    })
 9504}
 9505
 9506pub fn open_remote_project_with_existing_connection(
 9507    connection_options: RemoteConnectionOptions,
 9508    project: Entity<Project>,
 9509    paths: Vec<PathBuf>,
 9510    app_state: Arc<AppState>,
 9511    window: WindowHandle<MultiWorkspace>,
 9512    cx: &mut AsyncApp,
 9513) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9514    cx.spawn(async move |cx| {
 9515        let (workspace_id, serialized_workspace) =
 9516            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9517
 9518        open_remote_project_inner(
 9519            project,
 9520            paths,
 9521            workspace_id,
 9522            serialized_workspace,
 9523            app_state,
 9524            window,
 9525            cx,
 9526        )
 9527        .await
 9528    })
 9529}
 9530
 9531async fn open_remote_project_inner(
 9532    project: Entity<Project>,
 9533    paths: Vec<PathBuf>,
 9534    workspace_id: WorkspaceId,
 9535    serialized_workspace: Option<SerializedWorkspace>,
 9536    app_state: Arc<AppState>,
 9537    window: WindowHandle<MultiWorkspace>,
 9538    cx: &mut AsyncApp,
 9539) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9540    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9541    let toolchains = db.toolchains(workspace_id).await?;
 9542    for (toolchain, worktree_path, path) in toolchains {
 9543        project
 9544            .update(cx, |this, cx| {
 9545                let Some(worktree_id) =
 9546                    this.find_worktree(&worktree_path, cx)
 9547                        .and_then(|(worktree, rel_path)| {
 9548                            if rel_path.is_empty() {
 9549                                Some(worktree.read(cx).id())
 9550                            } else {
 9551                                None
 9552                            }
 9553                        })
 9554                else {
 9555                    return Task::ready(None);
 9556                };
 9557
 9558                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9559            })
 9560            .await;
 9561    }
 9562    let mut project_paths_to_open = vec![];
 9563    let mut project_path_errors = vec![];
 9564
 9565    for path in paths {
 9566        let result = cx
 9567            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9568            .await;
 9569        match result {
 9570            Ok((_, project_path)) => {
 9571                project_paths_to_open.push((path.clone(), Some(project_path)));
 9572            }
 9573            Err(error) => {
 9574                project_path_errors.push(error);
 9575            }
 9576        };
 9577    }
 9578
 9579    if project_paths_to_open.is_empty() {
 9580        return Err(project_path_errors.pop().context("no paths given")?);
 9581    }
 9582
 9583    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9584        telemetry::event!("SSH Project Opened");
 9585
 9586        let new_workspace = cx.new(|cx| {
 9587            let mut workspace =
 9588                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9589            workspace.update_history(cx);
 9590
 9591            if let Some(ref serialized) = serialized_workspace {
 9592                workspace.centered_layout = serialized.centered_layout;
 9593            }
 9594
 9595            workspace
 9596        });
 9597
 9598        multi_workspace.activate(new_workspace.clone(), cx);
 9599        new_workspace
 9600    })?;
 9601
 9602    let items = window
 9603        .update(cx, |_, window, cx| {
 9604            window.activate_window();
 9605            workspace.update(cx, |_workspace, cx| {
 9606                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9607            })
 9608        })?
 9609        .await?;
 9610
 9611    workspace.update(cx, |workspace, cx| {
 9612        for error in project_path_errors {
 9613            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9614                if let Some(path) = error.error_tag("path") {
 9615                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9616                }
 9617            } else {
 9618                workspace.show_error(&error, cx)
 9619            }
 9620        }
 9621    });
 9622
 9623    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9624}
 9625
 9626fn deserialize_remote_project(
 9627    connection_options: RemoteConnectionOptions,
 9628    paths: Vec<PathBuf>,
 9629    cx: &AsyncApp,
 9630) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9631    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9632    cx.background_spawn(async move {
 9633        let remote_connection_id = db
 9634            .get_or_create_remote_connection(connection_options)
 9635            .await?;
 9636
 9637        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9638
 9639        let workspace_id = if let Some(workspace_id) =
 9640            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9641        {
 9642            workspace_id
 9643        } else {
 9644            db.next_id().await?
 9645        };
 9646
 9647        Ok((workspace_id, serialized_workspace))
 9648    })
 9649}
 9650
 9651pub fn join_in_room_project(
 9652    project_id: u64,
 9653    follow_user_id: u64,
 9654    app_state: Arc<AppState>,
 9655    cx: &mut App,
 9656) -> Task<Result<()>> {
 9657    let windows = cx.windows();
 9658    cx.spawn(async move |cx| {
 9659        let existing_window_and_workspace: Option<(
 9660            WindowHandle<MultiWorkspace>,
 9661            Entity<Workspace>,
 9662        )> = windows.into_iter().find_map(|window_handle| {
 9663            window_handle
 9664                .downcast::<MultiWorkspace>()
 9665                .and_then(|window_handle| {
 9666                    window_handle
 9667                        .update(cx, |multi_workspace, _window, cx| {
 9668                            for workspace in multi_workspace.workspaces() {
 9669                                if workspace.read(cx).project().read(cx).remote_id()
 9670                                    == Some(project_id)
 9671                                {
 9672                                    return Some((window_handle, workspace.clone()));
 9673                                }
 9674                            }
 9675                            None
 9676                        })
 9677                        .unwrap_or(None)
 9678                })
 9679        });
 9680
 9681        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9682            existing_window_and_workspace
 9683        {
 9684            existing_window
 9685                .update(cx, |multi_workspace, _, cx| {
 9686                    multi_workspace.activate(target_workspace, cx);
 9687                })
 9688                .ok();
 9689            existing_window
 9690        } else {
 9691            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9692            let project = cx
 9693                .update(|cx| {
 9694                    active_call.0.join_project(
 9695                        project_id,
 9696                        app_state.languages.clone(),
 9697                        app_state.fs.clone(),
 9698                        cx,
 9699                    )
 9700                })
 9701                .await?;
 9702
 9703            let window_bounds_override = window_bounds_env_override();
 9704            cx.update(|cx| {
 9705                let mut options = (app_state.build_window_options)(None, cx);
 9706                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9707                cx.open_window(options, |window, cx| {
 9708                    let workspace = cx.new(|cx| {
 9709                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9710                    });
 9711                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9712                })
 9713            })?
 9714        };
 9715
 9716        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9717            cx.activate(true);
 9718            window.activate_window();
 9719
 9720            // We set the active workspace above, so this is the correct workspace.
 9721            let workspace = multi_workspace.workspace().clone();
 9722            workspace.update(cx, |workspace, cx| {
 9723                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9724                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9725                    .or_else(|| {
 9726                        // If we couldn't follow the given user, follow the host instead.
 9727                        let collaborator = workspace
 9728                            .project()
 9729                            .read(cx)
 9730                            .collaborators()
 9731                            .values()
 9732                            .find(|collaborator| collaborator.is_host)?;
 9733                        Some(collaborator.peer_id)
 9734                    });
 9735
 9736                if let Some(follow_peer_id) = follow_peer_id {
 9737                    workspace.follow(follow_peer_id, window, cx);
 9738                }
 9739            });
 9740        })?;
 9741
 9742        anyhow::Ok(())
 9743    })
 9744}
 9745
 9746pub fn reload(cx: &mut App) {
 9747    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9748    let mut workspace_windows = cx
 9749        .windows()
 9750        .into_iter()
 9751        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9752        .collect::<Vec<_>>();
 9753
 9754    // If multiple windows have unsaved changes, and need a save prompt,
 9755    // prompt in the active window before switching to a different window.
 9756    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9757
 9758    let mut prompt = None;
 9759    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9760        prompt = window
 9761            .update(cx, |_, window, cx| {
 9762                window.prompt(
 9763                    PromptLevel::Info,
 9764                    "Are you sure you want to restart?",
 9765                    None,
 9766                    &["Restart", "Cancel"],
 9767                    cx,
 9768                )
 9769            })
 9770            .ok();
 9771    }
 9772
 9773    cx.spawn(async move |cx| {
 9774        if let Some(prompt) = prompt {
 9775            let answer = prompt.await?;
 9776            if answer != 0 {
 9777                return anyhow::Ok(());
 9778            }
 9779        }
 9780
 9781        // If the user cancels any save prompt, then keep the app open.
 9782        for window in workspace_windows {
 9783            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9784                let workspace = multi_workspace.workspace().clone();
 9785                workspace.update(cx, |workspace, cx| {
 9786                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9787                })
 9788            }) && !should_close.await?
 9789            {
 9790                return anyhow::Ok(());
 9791            }
 9792        }
 9793        cx.update(|cx| cx.restart());
 9794        anyhow::Ok(())
 9795    })
 9796    .detach_and_log_err(cx);
 9797}
 9798
 9799fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9800    let mut parts = value.split(',');
 9801    let x: usize = parts.next()?.parse().ok()?;
 9802    let y: usize = parts.next()?.parse().ok()?;
 9803    Some(point(px(x as f32), px(y as f32)))
 9804}
 9805
 9806fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9807    let mut parts = value.split(',');
 9808    let width: usize = parts.next()?.parse().ok()?;
 9809    let height: usize = parts.next()?.parse().ok()?;
 9810    Some(size(px(width as f32), px(height as f32)))
 9811}
 9812
 9813/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9814/// appropriate.
 9815///
 9816/// The `border_radius_tiling` parameter allows overriding which corners get
 9817/// rounded, independently of the actual window tiling state. This is used
 9818/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9819/// we want square corners on the left (so the sidebar appears flush with the
 9820/// window edge) but we still need the shadow padding for proper visual
 9821/// appearance. Unlike actual window tiling, this only affects border radius -
 9822/// not padding or shadows.
 9823pub fn client_side_decorations(
 9824    element: impl IntoElement,
 9825    window: &mut Window,
 9826    cx: &mut App,
 9827    border_radius_tiling: Tiling,
 9828) -> Stateful<Div> {
 9829    const BORDER_SIZE: Pixels = px(1.0);
 9830    let decorations = window.window_decorations();
 9831    let tiling = match decorations {
 9832        Decorations::Server => Tiling::default(),
 9833        Decorations::Client { tiling } => tiling,
 9834    };
 9835
 9836    match decorations {
 9837        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9838        Decorations::Server => window.set_client_inset(px(0.0)),
 9839    }
 9840
 9841    struct GlobalResizeEdge(ResizeEdge);
 9842    impl Global for GlobalResizeEdge {}
 9843
 9844    div()
 9845        .id("window-backdrop")
 9846        .bg(transparent_black())
 9847        .map(|div| match decorations {
 9848            Decorations::Server => div,
 9849            Decorations::Client { .. } => div
 9850                .when(
 9851                    !(tiling.top
 9852                        || tiling.right
 9853                        || border_radius_tiling.top
 9854                        || border_radius_tiling.right),
 9855                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9856                )
 9857                .when(
 9858                    !(tiling.top
 9859                        || tiling.left
 9860                        || border_radius_tiling.top
 9861                        || border_radius_tiling.left),
 9862                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9863                )
 9864                .when(
 9865                    !(tiling.bottom
 9866                        || tiling.right
 9867                        || border_radius_tiling.bottom
 9868                        || border_radius_tiling.right),
 9869                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9870                )
 9871                .when(
 9872                    !(tiling.bottom
 9873                        || tiling.left
 9874                        || border_radius_tiling.bottom
 9875                        || border_radius_tiling.left),
 9876                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9877                )
 9878                .when(!tiling.top, |div| {
 9879                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9880                })
 9881                .when(!tiling.bottom, |div| {
 9882                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9883                })
 9884                .when(!tiling.left, |div| {
 9885                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9886                })
 9887                .when(!tiling.right, |div| {
 9888                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9889                })
 9890                .on_mouse_move(move |e, window, cx| {
 9891                    let size = window.window_bounds().get_bounds().size;
 9892                    let pos = e.position;
 9893
 9894                    let new_edge =
 9895                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9896
 9897                    let edge = cx.try_global::<GlobalResizeEdge>();
 9898                    if new_edge != edge.map(|edge| edge.0) {
 9899                        window
 9900                            .window_handle()
 9901                            .update(cx, |workspace, _, cx| {
 9902                                cx.notify(workspace.entity_id());
 9903                            })
 9904                            .ok();
 9905                    }
 9906                })
 9907                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9908                    let size = window.window_bounds().get_bounds().size;
 9909                    let pos = e.position;
 9910
 9911                    let edge = match resize_edge(
 9912                        pos,
 9913                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9914                        size,
 9915                        tiling,
 9916                    ) {
 9917                        Some(value) => value,
 9918                        None => return,
 9919                    };
 9920
 9921                    window.start_window_resize(edge);
 9922                }),
 9923        })
 9924        .size_full()
 9925        .child(
 9926            div()
 9927                .cursor(CursorStyle::Arrow)
 9928                .map(|div| match decorations {
 9929                    Decorations::Server => div,
 9930                    Decorations::Client { .. } => div
 9931                        .border_color(cx.theme().colors().border)
 9932                        .when(
 9933                            !(tiling.top
 9934                                || tiling.right
 9935                                || border_radius_tiling.top
 9936                                || border_radius_tiling.right),
 9937                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9938                        )
 9939                        .when(
 9940                            !(tiling.top
 9941                                || tiling.left
 9942                                || border_radius_tiling.top
 9943                                || border_radius_tiling.left),
 9944                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9945                        )
 9946                        .when(
 9947                            !(tiling.bottom
 9948                                || tiling.right
 9949                                || border_radius_tiling.bottom
 9950                                || border_radius_tiling.right),
 9951                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9952                        )
 9953                        .when(
 9954                            !(tiling.bottom
 9955                                || tiling.left
 9956                                || border_radius_tiling.bottom
 9957                                || border_radius_tiling.left),
 9958                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9959                        )
 9960                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9961                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9962                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9963                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9964                        .when(!tiling.is_tiled(), |div| {
 9965                            div.shadow(vec![gpui::BoxShadow {
 9966                                color: Hsla {
 9967                                    h: 0.,
 9968                                    s: 0.,
 9969                                    l: 0.,
 9970                                    a: 0.4,
 9971                                },
 9972                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9973                                spread_radius: px(0.),
 9974                                offset: point(px(0.0), px(0.0)),
 9975                            }])
 9976                        }),
 9977                })
 9978                .on_mouse_move(|_e, _, cx| {
 9979                    cx.stop_propagation();
 9980                })
 9981                .size_full()
 9982                .child(element),
 9983        )
 9984        .map(|div| match decorations {
 9985            Decorations::Server => div,
 9986            Decorations::Client { tiling, .. } => div.child(
 9987                canvas(
 9988                    |_bounds, window, _| {
 9989                        window.insert_hitbox(
 9990                            Bounds::new(
 9991                                point(px(0.0), px(0.0)),
 9992                                window.window_bounds().get_bounds().size,
 9993                            ),
 9994                            HitboxBehavior::Normal,
 9995                        )
 9996                    },
 9997                    move |_bounds, hitbox, window, cx| {
 9998                        let mouse = window.mouse_position();
 9999                        let size = window.window_bounds().get_bounds().size;
10000                        let Some(edge) =
10001                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10002                        else {
10003                            return;
10004                        };
10005                        cx.set_global(GlobalResizeEdge(edge));
10006                        window.set_cursor_style(
10007                            match edge {
10008                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10009                                ResizeEdge::Left | ResizeEdge::Right => {
10010                                    CursorStyle::ResizeLeftRight
10011                                }
10012                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10013                                    CursorStyle::ResizeUpLeftDownRight
10014                                }
10015                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10016                                    CursorStyle::ResizeUpRightDownLeft
10017                                }
10018                            },
10019                            &hitbox,
10020                        );
10021                    },
10022                )
10023                .size_full()
10024                .absolute(),
10025            ),
10026        })
10027}
10028
10029fn resize_edge(
10030    pos: Point<Pixels>,
10031    shadow_size: Pixels,
10032    window_size: Size<Pixels>,
10033    tiling: Tiling,
10034) -> Option<ResizeEdge> {
10035    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10036    if bounds.contains(&pos) {
10037        return None;
10038    }
10039
10040    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10041    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10042    if !tiling.top && top_left_bounds.contains(&pos) {
10043        return Some(ResizeEdge::TopLeft);
10044    }
10045
10046    let top_right_bounds = Bounds::new(
10047        Point::new(window_size.width - corner_size.width, px(0.)),
10048        corner_size,
10049    );
10050    if !tiling.top && top_right_bounds.contains(&pos) {
10051        return Some(ResizeEdge::TopRight);
10052    }
10053
10054    let bottom_left_bounds = Bounds::new(
10055        Point::new(px(0.), window_size.height - corner_size.height),
10056        corner_size,
10057    );
10058    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10059        return Some(ResizeEdge::BottomLeft);
10060    }
10061
10062    let bottom_right_bounds = Bounds::new(
10063        Point::new(
10064            window_size.width - corner_size.width,
10065            window_size.height - corner_size.height,
10066        ),
10067        corner_size,
10068    );
10069    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10070        return Some(ResizeEdge::BottomRight);
10071    }
10072
10073    if !tiling.top && pos.y < shadow_size {
10074        Some(ResizeEdge::Top)
10075    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10076        Some(ResizeEdge::Bottom)
10077    } else if !tiling.left && pos.x < shadow_size {
10078        Some(ResizeEdge::Left)
10079    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10080        Some(ResizeEdge::Right)
10081    } else {
10082        None
10083    }
10084}
10085
10086fn join_pane_into_active(
10087    active_pane: &Entity<Pane>,
10088    pane: &Entity<Pane>,
10089    window: &mut Window,
10090    cx: &mut App,
10091) {
10092    if pane == active_pane {
10093    } else if pane.read(cx).items_len() == 0 {
10094        pane.update(cx, |_, cx| {
10095            cx.emit(pane::Event::Remove {
10096                focus_on_pane: None,
10097            });
10098        })
10099    } else {
10100        move_all_items(pane, active_pane, window, cx);
10101    }
10102}
10103
10104fn move_all_items(
10105    from_pane: &Entity<Pane>,
10106    to_pane: &Entity<Pane>,
10107    window: &mut Window,
10108    cx: &mut App,
10109) {
10110    let destination_is_different = from_pane != to_pane;
10111    let mut moved_items = 0;
10112    for (item_ix, item_handle) in from_pane
10113        .read(cx)
10114        .items()
10115        .enumerate()
10116        .map(|(ix, item)| (ix, item.clone()))
10117        .collect::<Vec<_>>()
10118    {
10119        let ix = item_ix - moved_items;
10120        if destination_is_different {
10121            // Close item from previous pane
10122            from_pane.update(cx, |source, cx| {
10123                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10124            });
10125            moved_items += 1;
10126        }
10127
10128        // This automatically removes duplicate items in the pane
10129        to_pane.update(cx, |destination, cx| {
10130            destination.add_item(item_handle, true, true, None, window, cx);
10131            window.focus(&destination.focus_handle(cx), cx)
10132        });
10133    }
10134}
10135
10136pub fn move_item(
10137    source: &Entity<Pane>,
10138    destination: &Entity<Pane>,
10139    item_id_to_move: EntityId,
10140    destination_index: usize,
10141    activate: bool,
10142    window: &mut Window,
10143    cx: &mut App,
10144) {
10145    let Some((item_ix, item_handle)) = source
10146        .read(cx)
10147        .items()
10148        .enumerate()
10149        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10150        .map(|(ix, item)| (ix, item.clone()))
10151    else {
10152        // Tab was closed during drag
10153        return;
10154    };
10155
10156    if source != destination {
10157        // Close item from previous pane
10158        source.update(cx, |source, cx| {
10159            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10160        });
10161    }
10162
10163    // This automatically removes duplicate items in the pane
10164    destination.update(cx, |destination, cx| {
10165        destination.add_item_inner(
10166            item_handle,
10167            activate,
10168            activate,
10169            activate,
10170            Some(destination_index),
10171            window,
10172            cx,
10173        );
10174        if activate {
10175            window.focus(&destination.focus_handle(cx), cx)
10176        }
10177    });
10178}
10179
10180pub fn move_active_item(
10181    source: &Entity<Pane>,
10182    destination: &Entity<Pane>,
10183    focus_destination: bool,
10184    close_if_empty: bool,
10185    window: &mut Window,
10186    cx: &mut App,
10187) {
10188    if source == destination {
10189        return;
10190    }
10191    let Some(active_item) = source.read(cx).active_item() else {
10192        return;
10193    };
10194    source.update(cx, |source_pane, cx| {
10195        let item_id = active_item.item_id();
10196        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10197        destination.update(cx, |target_pane, cx| {
10198            target_pane.add_item(
10199                active_item,
10200                focus_destination,
10201                focus_destination,
10202                Some(target_pane.items_len()),
10203                window,
10204                cx,
10205            );
10206        });
10207    });
10208}
10209
10210pub fn clone_active_item(
10211    workspace_id: Option<WorkspaceId>,
10212    source: &Entity<Pane>,
10213    destination: &Entity<Pane>,
10214    focus_destination: bool,
10215    window: &mut Window,
10216    cx: &mut App,
10217) {
10218    if source == destination {
10219        return;
10220    }
10221    let Some(active_item) = source.read(cx).active_item() else {
10222        return;
10223    };
10224    if !active_item.can_split(cx) {
10225        return;
10226    }
10227    let destination = destination.downgrade();
10228    let task = active_item.clone_on_split(workspace_id, window, cx);
10229    window
10230        .spawn(cx, async move |cx| {
10231            let Some(clone) = task.await else {
10232                return;
10233            };
10234            destination
10235                .update_in(cx, |target_pane, window, cx| {
10236                    target_pane.add_item(
10237                        clone,
10238                        focus_destination,
10239                        focus_destination,
10240                        Some(target_pane.items_len()),
10241                        window,
10242                        cx,
10243                    );
10244                })
10245                .log_err();
10246        })
10247        .detach();
10248}
10249
10250#[derive(Debug)]
10251pub struct WorkspacePosition {
10252    pub window_bounds: Option<WindowBounds>,
10253    pub display: Option<Uuid>,
10254    pub centered_layout: bool,
10255}
10256
10257pub fn remote_workspace_position_from_db(
10258    connection_options: RemoteConnectionOptions,
10259    paths_to_open: &[PathBuf],
10260    cx: &App,
10261) -> Task<Result<WorkspacePosition>> {
10262    let paths = paths_to_open.to_vec();
10263    let db = WorkspaceDb::global(cx);
10264    let kvp = db::kvp::KeyValueStore::global(cx);
10265
10266    cx.background_spawn(async move {
10267        let remote_connection_id = db
10268            .get_or_create_remote_connection(connection_options)
10269            .await
10270            .context("fetching serialized ssh project")?;
10271        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10272
10273        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10274            (Some(WindowBounds::Windowed(bounds)), None)
10275        } else {
10276            let restorable_bounds = serialized_workspace
10277                .as_ref()
10278                .and_then(|workspace| {
10279                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10280                })
10281                .or_else(|| persistence::read_default_window_bounds(&kvp));
10282
10283            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10284                (Some(serialized_bounds), Some(serialized_display))
10285            } else {
10286                (None, None)
10287            }
10288        };
10289
10290        let centered_layout = serialized_workspace
10291            .as_ref()
10292            .map(|w| w.centered_layout)
10293            .unwrap_or(false);
10294
10295        Ok(WorkspacePosition {
10296            window_bounds,
10297            display,
10298            centered_layout,
10299        })
10300    })
10301}
10302
10303pub fn with_active_or_new_workspace(
10304    cx: &mut App,
10305    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10306) {
10307    match cx
10308        .active_window()
10309        .and_then(|w| w.downcast::<MultiWorkspace>())
10310    {
10311        Some(multi_workspace) => {
10312            cx.defer(move |cx| {
10313                multi_workspace
10314                    .update(cx, |multi_workspace, window, cx| {
10315                        let workspace = multi_workspace.workspace().clone();
10316                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10317                    })
10318                    .log_err();
10319            });
10320        }
10321        None => {
10322            let app_state = AppState::global(cx);
10323            if let Some(app_state) = app_state.upgrade() {
10324                open_new(
10325                    OpenOptions::default(),
10326                    app_state,
10327                    cx,
10328                    move |workspace, window, cx| f(workspace, window, cx),
10329                )
10330                .detach_and_log_err(cx);
10331            }
10332        }
10333    }
10334}
10335
10336/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10337/// key. This migration path only runs once per panel per workspace.
10338fn load_legacy_panel_size(
10339    panel_key: &str,
10340    dock_position: DockPosition,
10341    workspace: &Workspace,
10342    cx: &mut App,
10343) -> Option<Pixels> {
10344    #[derive(Deserialize)]
10345    struct LegacyPanelState {
10346        #[serde(default)]
10347        width: Option<Pixels>,
10348        #[serde(default)]
10349        height: Option<Pixels>,
10350    }
10351
10352    let workspace_id = workspace
10353        .database_id()
10354        .map(|id| i64::from(id).to_string())
10355        .or_else(|| workspace.session_id())?;
10356
10357    let legacy_key = match panel_key {
10358        "ProjectPanel" => {
10359            format!("{}-{:?}", "ProjectPanel", workspace_id)
10360        }
10361        "OutlinePanel" => {
10362            format!("{}-{:?}", "OutlinePanel", workspace_id)
10363        }
10364        "GitPanel" => {
10365            format!("{}-{:?}", "GitPanel", workspace_id)
10366        }
10367        "TerminalPanel" => {
10368            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10369        }
10370        _ => return None,
10371    };
10372
10373    let kvp = db::kvp::KeyValueStore::global(cx);
10374    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10375    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10376    let size = match dock_position {
10377        DockPosition::Bottom => state.height,
10378        DockPosition::Left | DockPosition::Right => state.width,
10379    }?;
10380
10381    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10382        .detach_and_log_err(cx);
10383
10384    Some(size)
10385}
10386
10387#[cfg(test)]
10388mod tests {
10389    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10390
10391    use super::*;
10392    use crate::{
10393        dock::{PanelEvent, test::TestPanel},
10394        item::{
10395            ItemBufferKind, ItemEvent,
10396            test::{TestItem, TestProjectItem},
10397        },
10398    };
10399    use fs::FakeFs;
10400    use gpui::{
10401        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10402        UpdateGlobal, VisualTestContext, px,
10403    };
10404    use project::{Project, ProjectEntryId};
10405    use serde_json::json;
10406    use settings::SettingsStore;
10407    use util::path;
10408    use util::rel_path::rel_path;
10409
10410    #[gpui::test]
10411    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10412        init_test(cx);
10413
10414        let fs = FakeFs::new(cx.executor());
10415        let project = Project::test(fs, [], cx).await;
10416        let (workspace, cx) =
10417            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10418
10419        // Adding an item with no ambiguity renders the tab without detail.
10420        let item1 = cx.new(|cx| {
10421            let mut item = TestItem::new(cx);
10422            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10423            item
10424        });
10425        workspace.update_in(cx, |workspace, window, cx| {
10426            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10427        });
10428        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10429
10430        // Adding an item that creates ambiguity increases the level of detail on
10431        // both tabs.
10432        let item2 = cx.new_window_entity(|_window, cx| {
10433            let mut item = TestItem::new(cx);
10434            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10435            item
10436        });
10437        workspace.update_in(cx, |workspace, window, cx| {
10438            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10439        });
10440        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10441        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10442
10443        // Adding an item that creates ambiguity increases the level of detail only
10444        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10445        // we stop at the highest detail available.
10446        let item3 = cx.new(|cx| {
10447            let mut item = TestItem::new(cx);
10448            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10449            item
10450        });
10451        workspace.update_in(cx, |workspace, window, cx| {
10452            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10453        });
10454        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10455        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10456        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10457    }
10458
10459    #[gpui::test]
10460    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10461        init_test(cx);
10462
10463        let fs = FakeFs::new(cx.executor());
10464        fs.insert_tree(
10465            "/root1",
10466            json!({
10467                "one.txt": "",
10468                "two.txt": "",
10469            }),
10470        )
10471        .await;
10472        fs.insert_tree(
10473            "/root2",
10474            json!({
10475                "three.txt": "",
10476            }),
10477        )
10478        .await;
10479
10480        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10481        let (workspace, cx) =
10482            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10483        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10484        let worktree_id = project.update(cx, |project, cx| {
10485            project.worktrees(cx).next().unwrap().read(cx).id()
10486        });
10487
10488        let item1 = cx.new(|cx| {
10489            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10490        });
10491        let item2 = cx.new(|cx| {
10492            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10493        });
10494
10495        // Add an item to an empty pane
10496        workspace.update_in(cx, |workspace, window, cx| {
10497            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10498        });
10499        project.update(cx, |project, cx| {
10500            assert_eq!(
10501                project.active_entry(),
10502                project
10503                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10504                    .map(|e| e.id)
10505            );
10506        });
10507        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10508
10509        // Add a second item to a non-empty pane
10510        workspace.update_in(cx, |workspace, window, cx| {
10511            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10512        });
10513        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10514        project.update(cx, |project, cx| {
10515            assert_eq!(
10516                project.active_entry(),
10517                project
10518                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10519                    .map(|e| e.id)
10520            );
10521        });
10522
10523        // Close the active item
10524        pane.update_in(cx, |pane, window, cx| {
10525            pane.close_active_item(&Default::default(), window, cx)
10526        })
10527        .await
10528        .unwrap();
10529        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10530        project.update(cx, |project, cx| {
10531            assert_eq!(
10532                project.active_entry(),
10533                project
10534                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10535                    .map(|e| e.id)
10536            );
10537        });
10538
10539        // Add a project folder
10540        project
10541            .update(cx, |project, cx| {
10542                project.find_or_create_worktree("root2", true, cx)
10543            })
10544            .await
10545            .unwrap();
10546        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10547
10548        // Remove a project folder
10549        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10550        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10551    }
10552
10553    #[gpui::test]
10554    async fn test_close_window(cx: &mut TestAppContext) {
10555        init_test(cx);
10556
10557        let fs = FakeFs::new(cx.executor());
10558        fs.insert_tree("/root", json!({ "one": "" })).await;
10559
10560        let project = Project::test(fs, ["root".as_ref()], cx).await;
10561        let (workspace, cx) =
10562            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10563
10564        // When there are no dirty items, there's nothing to do.
10565        let item1 = cx.new(TestItem::new);
10566        workspace.update_in(cx, |w, window, cx| {
10567            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10568        });
10569        let task = workspace.update_in(cx, |w, window, cx| {
10570            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10571        });
10572        assert!(task.await.unwrap());
10573
10574        // When there are dirty untitled items, prompt to save each one. If the user
10575        // cancels any prompt, then abort.
10576        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10577        let item3 = cx.new(|cx| {
10578            TestItem::new(cx)
10579                .with_dirty(true)
10580                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10581        });
10582        workspace.update_in(cx, |w, window, cx| {
10583            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10584            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10585        });
10586        let task = workspace.update_in(cx, |w, window, cx| {
10587            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10588        });
10589        cx.executor().run_until_parked();
10590        cx.simulate_prompt_answer("Cancel"); // cancel save all
10591        cx.executor().run_until_parked();
10592        assert!(!cx.has_pending_prompt());
10593        assert!(!task.await.unwrap());
10594    }
10595
10596    #[gpui::test]
10597    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10598        init_test(cx);
10599
10600        let fs = FakeFs::new(cx.executor());
10601        fs.insert_tree("/root", json!({ "one": "" })).await;
10602
10603        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10604        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10605        let multi_workspace_handle =
10606            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10607        cx.run_until_parked();
10608
10609        let workspace_a = multi_workspace_handle
10610            .read_with(cx, |mw, _| mw.workspace().clone())
10611            .unwrap();
10612
10613        let workspace_b = multi_workspace_handle
10614            .update(cx, |mw, window, cx| {
10615                mw.test_add_workspace(project_b, window, cx)
10616            })
10617            .unwrap();
10618
10619        // Activate workspace A
10620        multi_workspace_handle
10621            .update(cx, |mw, window, cx| {
10622                mw.activate_index(0, window, cx);
10623            })
10624            .unwrap();
10625
10626        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10627
10628        // Workspace A has a clean item
10629        let item_a = cx.new(TestItem::new);
10630        workspace_a.update_in(cx, |w, window, cx| {
10631            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10632        });
10633
10634        // Workspace B has a dirty item
10635        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10636        workspace_b.update_in(cx, |w, window, cx| {
10637            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10638        });
10639
10640        // Verify workspace A is active
10641        multi_workspace_handle
10642            .read_with(cx, |mw, _| {
10643                assert_eq!(mw.active_workspace_index(), 0);
10644            })
10645            .unwrap();
10646
10647        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10648        multi_workspace_handle
10649            .update(cx, |mw, window, cx| {
10650                mw.close_window(&CloseWindow, window, cx);
10651            })
10652            .unwrap();
10653        cx.run_until_parked();
10654
10655        // Workspace B should now be active since it has dirty items that need attention
10656        multi_workspace_handle
10657            .read_with(cx, |mw, _| {
10658                assert_eq!(
10659                    mw.active_workspace_index(),
10660                    1,
10661                    "workspace B should be activated when it prompts"
10662                );
10663            })
10664            .unwrap();
10665
10666        // User cancels the save prompt from workspace B
10667        cx.simulate_prompt_answer("Cancel");
10668        cx.run_until_parked();
10669
10670        // Window should still exist because workspace B's close was cancelled
10671        assert!(
10672            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10673            "window should still exist after cancelling one workspace's close"
10674        );
10675    }
10676
10677    #[gpui::test]
10678    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10679        init_test(cx);
10680
10681        // Register TestItem as a serializable item
10682        cx.update(|cx| {
10683            register_serializable_item::<TestItem>(cx);
10684        });
10685
10686        let fs = FakeFs::new(cx.executor());
10687        fs.insert_tree("/root", json!({ "one": "" })).await;
10688
10689        let project = Project::test(fs, ["root".as_ref()], cx).await;
10690        let (workspace, cx) =
10691            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10692
10693        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10694        let item1 = cx.new(|cx| {
10695            TestItem::new(cx)
10696                .with_dirty(true)
10697                .with_serialize(|| Some(Task::ready(Ok(()))))
10698        });
10699        let item2 = cx.new(|cx| {
10700            TestItem::new(cx)
10701                .with_dirty(true)
10702                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10703                .with_serialize(|| Some(Task::ready(Ok(()))))
10704        });
10705        workspace.update_in(cx, |w, window, cx| {
10706            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10707            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10708        });
10709        let task = workspace.update_in(cx, |w, window, cx| {
10710            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10711        });
10712        assert!(task.await.unwrap());
10713    }
10714
10715    #[gpui::test]
10716    async fn test_close_pane_items(cx: &mut TestAppContext) {
10717        init_test(cx);
10718
10719        let fs = FakeFs::new(cx.executor());
10720
10721        let project = Project::test(fs, None, cx).await;
10722        let (workspace, cx) =
10723            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10724
10725        let item1 = cx.new(|cx| {
10726            TestItem::new(cx)
10727                .with_dirty(true)
10728                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10729        });
10730        let item2 = cx.new(|cx| {
10731            TestItem::new(cx)
10732                .with_dirty(true)
10733                .with_conflict(true)
10734                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10735        });
10736        let item3 = cx.new(|cx| {
10737            TestItem::new(cx)
10738                .with_dirty(true)
10739                .with_conflict(true)
10740                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10741        });
10742        let item4 = cx.new(|cx| {
10743            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10744                let project_item = TestProjectItem::new_untitled(cx);
10745                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10746                project_item
10747            }])
10748        });
10749        let pane = workspace.update_in(cx, |workspace, window, cx| {
10750            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10751            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10752            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10753            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10754            workspace.active_pane().clone()
10755        });
10756
10757        let close_items = pane.update_in(cx, |pane, window, cx| {
10758            pane.activate_item(1, true, true, window, cx);
10759            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10760            let item1_id = item1.item_id();
10761            let item3_id = item3.item_id();
10762            let item4_id = item4.item_id();
10763            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10764                [item1_id, item3_id, item4_id].contains(&id)
10765            })
10766        });
10767        cx.executor().run_until_parked();
10768
10769        assert!(cx.has_pending_prompt());
10770        cx.simulate_prompt_answer("Save all");
10771
10772        cx.executor().run_until_parked();
10773
10774        // Item 1 is saved. There's a prompt to save item 3.
10775        pane.update(cx, |pane, cx| {
10776            assert_eq!(item1.read(cx).save_count, 1);
10777            assert_eq!(item1.read(cx).save_as_count, 0);
10778            assert_eq!(item1.read(cx).reload_count, 0);
10779            assert_eq!(pane.items_len(), 3);
10780            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10781        });
10782        assert!(cx.has_pending_prompt());
10783
10784        // Cancel saving item 3.
10785        cx.simulate_prompt_answer("Discard");
10786        cx.executor().run_until_parked();
10787
10788        // Item 3 is reloaded. There's a prompt to save item 4.
10789        pane.update(cx, |pane, cx| {
10790            assert_eq!(item3.read(cx).save_count, 0);
10791            assert_eq!(item3.read(cx).save_as_count, 0);
10792            assert_eq!(item3.read(cx).reload_count, 1);
10793            assert_eq!(pane.items_len(), 2);
10794            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10795        });
10796
10797        // There's a prompt for a path for item 4.
10798        cx.simulate_new_path_selection(|_| Some(Default::default()));
10799        close_items.await.unwrap();
10800
10801        // The requested items are closed.
10802        pane.update(cx, |pane, cx| {
10803            assert_eq!(item4.read(cx).save_count, 0);
10804            assert_eq!(item4.read(cx).save_as_count, 1);
10805            assert_eq!(item4.read(cx).reload_count, 0);
10806            assert_eq!(pane.items_len(), 1);
10807            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10808        });
10809    }
10810
10811    #[gpui::test]
10812    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10813        init_test(cx);
10814
10815        let fs = FakeFs::new(cx.executor());
10816        let project = Project::test(fs, [], cx).await;
10817        let (workspace, cx) =
10818            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10819
10820        // Create several workspace items with single project entries, and two
10821        // workspace items with multiple project entries.
10822        let single_entry_items = (0..=4)
10823            .map(|project_entry_id| {
10824                cx.new(|cx| {
10825                    TestItem::new(cx)
10826                        .with_dirty(true)
10827                        .with_project_items(&[dirty_project_item(
10828                            project_entry_id,
10829                            &format!("{project_entry_id}.txt"),
10830                            cx,
10831                        )])
10832                })
10833            })
10834            .collect::<Vec<_>>();
10835        let item_2_3 = cx.new(|cx| {
10836            TestItem::new(cx)
10837                .with_dirty(true)
10838                .with_buffer_kind(ItemBufferKind::Multibuffer)
10839                .with_project_items(&[
10840                    single_entry_items[2].read(cx).project_items[0].clone(),
10841                    single_entry_items[3].read(cx).project_items[0].clone(),
10842                ])
10843        });
10844        let item_3_4 = cx.new(|cx| {
10845            TestItem::new(cx)
10846                .with_dirty(true)
10847                .with_buffer_kind(ItemBufferKind::Multibuffer)
10848                .with_project_items(&[
10849                    single_entry_items[3].read(cx).project_items[0].clone(),
10850                    single_entry_items[4].read(cx).project_items[0].clone(),
10851                ])
10852        });
10853
10854        // Create two panes that contain the following project entries:
10855        //   left pane:
10856        //     multi-entry items:   (2, 3)
10857        //     single-entry items:  0, 2, 3, 4
10858        //   right pane:
10859        //     single-entry items:  4, 1
10860        //     multi-entry items:   (3, 4)
10861        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10862            let left_pane = workspace.active_pane().clone();
10863            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10864            workspace.add_item_to_active_pane(
10865                single_entry_items[0].boxed_clone(),
10866                None,
10867                true,
10868                window,
10869                cx,
10870            );
10871            workspace.add_item_to_active_pane(
10872                single_entry_items[2].boxed_clone(),
10873                None,
10874                true,
10875                window,
10876                cx,
10877            );
10878            workspace.add_item_to_active_pane(
10879                single_entry_items[3].boxed_clone(),
10880                None,
10881                true,
10882                window,
10883                cx,
10884            );
10885            workspace.add_item_to_active_pane(
10886                single_entry_items[4].boxed_clone(),
10887                None,
10888                true,
10889                window,
10890                cx,
10891            );
10892
10893            let right_pane =
10894                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10895
10896            let boxed_clone = single_entry_items[1].boxed_clone();
10897            let right_pane = window.spawn(cx, async move |cx| {
10898                right_pane.await.inspect(|right_pane| {
10899                    right_pane
10900                        .update_in(cx, |pane, window, cx| {
10901                            pane.add_item(boxed_clone, true, true, None, window, cx);
10902                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10903                        })
10904                        .unwrap();
10905                })
10906            });
10907
10908            (left_pane, right_pane)
10909        });
10910        let right_pane = right_pane.await.unwrap();
10911        cx.focus(&right_pane);
10912
10913        let close = right_pane.update_in(cx, |pane, window, cx| {
10914            pane.close_all_items(&CloseAllItems::default(), window, cx)
10915                .unwrap()
10916        });
10917        cx.executor().run_until_parked();
10918
10919        let msg = cx.pending_prompt().unwrap().0;
10920        assert!(msg.contains("1.txt"));
10921        assert!(!msg.contains("2.txt"));
10922        assert!(!msg.contains("3.txt"));
10923        assert!(!msg.contains("4.txt"));
10924
10925        // With best-effort close, cancelling item 1 keeps it open but items 4
10926        // and (3,4) still close since their entries exist in left pane.
10927        cx.simulate_prompt_answer("Cancel");
10928        close.await;
10929
10930        right_pane.read_with(cx, |pane, _| {
10931            assert_eq!(pane.items_len(), 1);
10932        });
10933
10934        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10935        left_pane
10936            .update_in(cx, |left_pane, window, cx| {
10937                left_pane.close_item_by_id(
10938                    single_entry_items[3].entity_id(),
10939                    SaveIntent::Skip,
10940                    window,
10941                    cx,
10942                )
10943            })
10944            .await
10945            .unwrap();
10946
10947        let close = left_pane.update_in(cx, |pane, window, cx| {
10948            pane.close_all_items(&CloseAllItems::default(), window, cx)
10949                .unwrap()
10950        });
10951        cx.executor().run_until_parked();
10952
10953        let details = cx.pending_prompt().unwrap().1;
10954        assert!(details.contains("0.txt"));
10955        assert!(details.contains("3.txt"));
10956        assert!(details.contains("4.txt"));
10957        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10958        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10959        // assert!(!details.contains("2.txt"));
10960
10961        cx.simulate_prompt_answer("Save all");
10962        cx.executor().run_until_parked();
10963        close.await;
10964
10965        left_pane.read_with(cx, |pane, _| {
10966            assert_eq!(pane.items_len(), 0);
10967        });
10968    }
10969
10970    #[gpui::test]
10971    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10972        init_test(cx);
10973
10974        let fs = FakeFs::new(cx.executor());
10975        let project = Project::test(fs, [], cx).await;
10976        let (workspace, cx) =
10977            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10978        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10979
10980        let item = cx.new(|cx| {
10981            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10982        });
10983        let item_id = item.entity_id();
10984        workspace.update_in(cx, |workspace, window, cx| {
10985            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10986        });
10987
10988        // Autosave on window change.
10989        item.update(cx, |item, cx| {
10990            SettingsStore::update_global(cx, |settings, cx| {
10991                settings.update_user_settings(cx, |settings| {
10992                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10993                })
10994            });
10995            item.is_dirty = true;
10996        });
10997
10998        // Deactivating the window saves the file.
10999        cx.deactivate_window();
11000        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11001
11002        // Re-activating the window doesn't save the file.
11003        cx.update(|window, _| window.activate_window());
11004        cx.executor().run_until_parked();
11005        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11006
11007        // Autosave on focus change.
11008        item.update_in(cx, |item, window, cx| {
11009            cx.focus_self(window);
11010            SettingsStore::update_global(cx, |settings, cx| {
11011                settings.update_user_settings(cx, |settings| {
11012                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11013                })
11014            });
11015            item.is_dirty = true;
11016        });
11017        // Blurring the item saves the file.
11018        item.update_in(cx, |_, window, _| window.blur());
11019        cx.executor().run_until_parked();
11020        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11021
11022        // Deactivating the window still saves the file.
11023        item.update_in(cx, |item, window, cx| {
11024            cx.focus_self(window);
11025            item.is_dirty = true;
11026        });
11027        cx.deactivate_window();
11028        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11029
11030        // Autosave after delay.
11031        item.update(cx, |item, cx| {
11032            SettingsStore::update_global(cx, |settings, cx| {
11033                settings.update_user_settings(cx, |settings| {
11034                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11035                        milliseconds: 500.into(),
11036                    });
11037                })
11038            });
11039            item.is_dirty = true;
11040            cx.emit(ItemEvent::Edit);
11041        });
11042
11043        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11044        cx.executor().advance_clock(Duration::from_millis(250));
11045        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11046
11047        // After delay expires, the file is saved.
11048        cx.executor().advance_clock(Duration::from_millis(250));
11049        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11050
11051        // Autosave after delay, should save earlier than delay if tab is closed
11052        item.update(cx, |item, cx| {
11053            item.is_dirty = true;
11054            cx.emit(ItemEvent::Edit);
11055        });
11056        cx.executor().advance_clock(Duration::from_millis(250));
11057        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11058
11059        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11060        pane.update_in(cx, |pane, window, cx| {
11061            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11062        })
11063        .await
11064        .unwrap();
11065        assert!(!cx.has_pending_prompt());
11066        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11067
11068        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11069        workspace.update_in(cx, |workspace, window, cx| {
11070            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11071        });
11072        item.update_in(cx, |item, _window, cx| {
11073            item.is_dirty = true;
11074            for project_item in &mut item.project_items {
11075                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11076            }
11077        });
11078        cx.run_until_parked();
11079        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11080
11081        // Autosave on focus change, ensuring closing the tab counts as such.
11082        item.update(cx, |item, cx| {
11083            SettingsStore::update_global(cx, |settings, cx| {
11084                settings.update_user_settings(cx, |settings| {
11085                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11086                })
11087            });
11088            item.is_dirty = true;
11089            for project_item in &mut item.project_items {
11090                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11091            }
11092        });
11093
11094        pane.update_in(cx, |pane, window, cx| {
11095            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11096        })
11097        .await
11098        .unwrap();
11099        assert!(!cx.has_pending_prompt());
11100        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11101
11102        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11103        workspace.update_in(cx, |workspace, window, cx| {
11104            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11105        });
11106        item.update_in(cx, |item, window, cx| {
11107            item.project_items[0].update(cx, |item, _| {
11108                item.entry_id = None;
11109            });
11110            item.is_dirty = true;
11111            window.blur();
11112        });
11113        cx.run_until_parked();
11114        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11115
11116        // Ensure autosave is prevented for deleted files also when closing the buffer.
11117        let _close_items = pane.update_in(cx, |pane, window, cx| {
11118            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11119        });
11120        cx.run_until_parked();
11121        assert!(cx.has_pending_prompt());
11122        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11123    }
11124
11125    #[gpui::test]
11126    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11127        init_test(cx);
11128
11129        let fs = FakeFs::new(cx.executor());
11130        let project = Project::test(fs, [], cx).await;
11131        let (workspace, cx) =
11132            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11133
11134        // Create a multibuffer-like item with two child focus handles,
11135        // simulating individual buffer editors within a multibuffer.
11136        let item = cx.new(|cx| {
11137            TestItem::new(cx)
11138                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11139                .with_child_focus_handles(2, cx)
11140        });
11141        workspace.update_in(cx, |workspace, window, cx| {
11142            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11143        });
11144
11145        // Set autosave to OnFocusChange and focus the first child handle,
11146        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11147        item.update_in(cx, |item, window, cx| {
11148            SettingsStore::update_global(cx, |settings, cx| {
11149                settings.update_user_settings(cx, |settings| {
11150                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11151                })
11152            });
11153            item.is_dirty = true;
11154            window.focus(&item.child_focus_handles[0], cx);
11155        });
11156        cx.executor().run_until_parked();
11157        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11158
11159        // Moving focus from one child to another within the same item should
11160        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11161        item.update_in(cx, |item, window, cx| {
11162            window.focus(&item.child_focus_handles[1], cx);
11163        });
11164        cx.executor().run_until_parked();
11165        item.read_with(cx, |item, _| {
11166            assert_eq!(
11167                item.save_count, 0,
11168                "Switching focus between children within the same item should not autosave"
11169            );
11170        });
11171
11172        // Blurring the item saves the file. This is the core regression scenario:
11173        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11174        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11175        // the leaf is always a child focus handle, so `on_blur` never detected
11176        // focus leaving the item.
11177        item.update_in(cx, |_, window, _| window.blur());
11178        cx.executor().run_until_parked();
11179        item.read_with(cx, |item, _| {
11180            assert_eq!(
11181                item.save_count, 1,
11182                "Blurring should trigger autosave when focus was on a child of the item"
11183            );
11184        });
11185
11186        // Deactivating the window should also trigger autosave when a child of
11187        // the multibuffer item currently owns focus.
11188        item.update_in(cx, |item, window, cx| {
11189            item.is_dirty = true;
11190            window.focus(&item.child_focus_handles[0], cx);
11191        });
11192        cx.executor().run_until_parked();
11193        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11194
11195        cx.deactivate_window();
11196        item.read_with(cx, |item, _| {
11197            assert_eq!(
11198                item.save_count, 2,
11199                "Deactivating window should trigger autosave when focus was on a child"
11200            );
11201        });
11202    }
11203
11204    #[gpui::test]
11205    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11206        init_test(cx);
11207
11208        let fs = FakeFs::new(cx.executor());
11209
11210        let project = Project::test(fs, [], cx).await;
11211        let (workspace, cx) =
11212            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11213
11214        let item = cx.new(|cx| {
11215            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11216        });
11217        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11218        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11219        let toolbar_notify_count = Rc::new(RefCell::new(0));
11220
11221        workspace.update_in(cx, |workspace, window, cx| {
11222            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11223            let toolbar_notification_count = toolbar_notify_count.clone();
11224            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11225                *toolbar_notification_count.borrow_mut() += 1
11226            })
11227            .detach();
11228        });
11229
11230        pane.read_with(cx, |pane, _| {
11231            assert!(!pane.can_navigate_backward());
11232            assert!(!pane.can_navigate_forward());
11233        });
11234
11235        item.update_in(cx, |item, _, cx| {
11236            item.set_state("one".to_string(), cx);
11237        });
11238
11239        // Toolbar must be notified to re-render the navigation buttons
11240        assert_eq!(*toolbar_notify_count.borrow(), 1);
11241
11242        pane.read_with(cx, |pane, _| {
11243            assert!(pane.can_navigate_backward());
11244            assert!(!pane.can_navigate_forward());
11245        });
11246
11247        workspace
11248            .update_in(cx, |workspace, window, cx| {
11249                workspace.go_back(pane.downgrade(), window, cx)
11250            })
11251            .await
11252            .unwrap();
11253
11254        assert_eq!(*toolbar_notify_count.borrow(), 2);
11255        pane.read_with(cx, |pane, _| {
11256            assert!(!pane.can_navigate_backward());
11257            assert!(pane.can_navigate_forward());
11258        });
11259    }
11260
11261    /// Tests that the navigation history deduplicates entries for the same item.
11262    ///
11263    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11264    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11265    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11266    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11267    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11268    ///
11269    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11270    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11271    #[gpui::test]
11272    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11273        init_test(cx);
11274
11275        let fs = FakeFs::new(cx.executor());
11276        let project = Project::test(fs, [], cx).await;
11277        let (workspace, cx) =
11278            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11279
11280        let item_a = cx.new(|cx| {
11281            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11282        });
11283        let item_b = cx.new(|cx| {
11284            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11285        });
11286        let item_c = cx.new(|cx| {
11287            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11288        });
11289
11290        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11291
11292        workspace.update_in(cx, |workspace, window, cx| {
11293            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11294            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11295            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11296        });
11297
11298        workspace.update_in(cx, |workspace, window, cx| {
11299            workspace.activate_item(&item_a, false, false, window, cx);
11300        });
11301        cx.run_until_parked();
11302
11303        workspace.update_in(cx, |workspace, window, cx| {
11304            workspace.activate_item(&item_b, false, false, window, cx);
11305        });
11306        cx.run_until_parked();
11307
11308        workspace.update_in(cx, |workspace, window, cx| {
11309            workspace.activate_item(&item_a, false, false, window, cx);
11310        });
11311        cx.run_until_parked();
11312
11313        workspace.update_in(cx, |workspace, window, cx| {
11314            workspace.activate_item(&item_b, false, false, window, cx);
11315        });
11316        cx.run_until_parked();
11317
11318        workspace.update_in(cx, |workspace, window, cx| {
11319            workspace.activate_item(&item_a, false, false, window, cx);
11320        });
11321        cx.run_until_parked();
11322
11323        workspace.update_in(cx, |workspace, window, cx| {
11324            workspace.activate_item(&item_b, false, false, window, cx);
11325        });
11326        cx.run_until_parked();
11327
11328        workspace.update_in(cx, |workspace, window, cx| {
11329            workspace.activate_item(&item_c, false, false, window, cx);
11330        });
11331        cx.run_until_parked();
11332
11333        let backward_count = pane.read_with(cx, |pane, cx| {
11334            let mut count = 0;
11335            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11336                count += 1;
11337            });
11338            count
11339        });
11340        assert!(
11341            backward_count <= 4,
11342            "Should have at most 4 entries, got {}",
11343            backward_count
11344        );
11345
11346        workspace
11347            .update_in(cx, |workspace, window, cx| {
11348                workspace.go_back(pane.downgrade(), window, cx)
11349            })
11350            .await
11351            .unwrap();
11352
11353        let active_item = workspace.read_with(cx, |workspace, cx| {
11354            workspace.active_item(cx).unwrap().item_id()
11355        });
11356        assert_eq!(
11357            active_item,
11358            item_b.entity_id(),
11359            "After first go_back, should be at item B"
11360        );
11361
11362        workspace
11363            .update_in(cx, |workspace, window, cx| {
11364                workspace.go_back(pane.downgrade(), window, cx)
11365            })
11366            .await
11367            .unwrap();
11368
11369        let active_item = workspace.read_with(cx, |workspace, cx| {
11370            workspace.active_item(cx).unwrap().item_id()
11371        });
11372        assert_eq!(
11373            active_item,
11374            item_a.entity_id(),
11375            "After second go_back, should be at item A"
11376        );
11377
11378        pane.read_with(cx, |pane, _| {
11379            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11380        });
11381    }
11382
11383    #[gpui::test]
11384    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11385        init_test(cx);
11386        let fs = FakeFs::new(cx.executor());
11387        let project = Project::test(fs, [], cx).await;
11388        let (multi_workspace, cx) =
11389            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11390        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11391
11392        workspace.update_in(cx, |workspace, window, cx| {
11393            let first_item = cx.new(|cx| {
11394                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11395            });
11396            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11397            workspace.split_pane(
11398                workspace.active_pane().clone(),
11399                SplitDirection::Right,
11400                window,
11401                cx,
11402            );
11403            workspace.split_pane(
11404                workspace.active_pane().clone(),
11405                SplitDirection::Right,
11406                window,
11407                cx,
11408            );
11409        });
11410
11411        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11412            let panes = workspace.center.panes();
11413            assert!(panes.len() >= 2);
11414            (
11415                panes.first().expect("at least one pane").entity_id(),
11416                panes.last().expect("at least one pane").entity_id(),
11417            )
11418        });
11419
11420        workspace.update_in(cx, |workspace, window, cx| {
11421            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11422        });
11423        workspace.update(cx, |workspace, _| {
11424            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11425            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11426        });
11427
11428        cx.dispatch_action(ActivateLastPane);
11429
11430        workspace.update(cx, |workspace, _| {
11431            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11432        });
11433    }
11434
11435    #[gpui::test]
11436    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11437        init_test(cx);
11438        let fs = FakeFs::new(cx.executor());
11439
11440        let project = Project::test(fs, [], cx).await;
11441        let (workspace, cx) =
11442            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11443
11444        let panel = workspace.update_in(cx, |workspace, window, cx| {
11445            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11446            workspace.add_panel(panel.clone(), window, cx);
11447
11448            workspace
11449                .right_dock()
11450                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11451
11452            panel
11453        });
11454
11455        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11456        pane.update_in(cx, |pane, window, cx| {
11457            let item = cx.new(TestItem::new);
11458            pane.add_item(Box::new(item), true, true, None, window, cx);
11459        });
11460
11461        // Transfer focus from center to panel
11462        workspace.update_in(cx, |workspace, window, cx| {
11463            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11464        });
11465
11466        workspace.update_in(cx, |workspace, window, cx| {
11467            assert!(workspace.right_dock().read(cx).is_open());
11468            assert!(!panel.is_zoomed(window, cx));
11469            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11470        });
11471
11472        // Transfer focus from panel to center
11473        workspace.update_in(cx, |workspace, window, cx| {
11474            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11475        });
11476
11477        workspace.update_in(cx, |workspace, window, cx| {
11478            assert!(workspace.right_dock().read(cx).is_open());
11479            assert!(!panel.is_zoomed(window, cx));
11480            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11481            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11482        });
11483
11484        // Close the dock
11485        workspace.update_in(cx, |workspace, window, cx| {
11486            workspace.toggle_dock(DockPosition::Right, window, cx);
11487        });
11488
11489        workspace.update_in(cx, |workspace, window, cx| {
11490            assert!(!workspace.right_dock().read(cx).is_open());
11491            assert!(!panel.is_zoomed(window, cx));
11492            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11493            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11494        });
11495
11496        // Open the dock
11497        workspace.update_in(cx, |workspace, window, cx| {
11498            workspace.toggle_dock(DockPosition::Right, window, cx);
11499        });
11500
11501        workspace.update_in(cx, |workspace, window, cx| {
11502            assert!(workspace.right_dock().read(cx).is_open());
11503            assert!(!panel.is_zoomed(window, cx));
11504            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11505        });
11506
11507        // Focus and zoom panel
11508        panel.update_in(cx, |panel, window, cx| {
11509            cx.focus_self(window);
11510            panel.set_zoomed(true, window, cx)
11511        });
11512
11513        workspace.update_in(cx, |workspace, window, cx| {
11514            assert!(workspace.right_dock().read(cx).is_open());
11515            assert!(panel.is_zoomed(window, cx));
11516            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11517        });
11518
11519        // Transfer focus to the center closes the dock
11520        workspace.update_in(cx, |workspace, window, cx| {
11521            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11522        });
11523
11524        workspace.update_in(cx, |workspace, window, cx| {
11525            assert!(!workspace.right_dock().read(cx).is_open());
11526            assert!(panel.is_zoomed(window, cx));
11527            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11528        });
11529
11530        // Transferring focus back to the panel keeps it zoomed
11531        workspace.update_in(cx, |workspace, window, cx| {
11532            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11533        });
11534
11535        workspace.update_in(cx, |workspace, window, cx| {
11536            assert!(workspace.right_dock().read(cx).is_open());
11537            assert!(panel.is_zoomed(window, cx));
11538            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11539        });
11540
11541        // Close the dock while it is zoomed
11542        workspace.update_in(cx, |workspace, window, cx| {
11543            workspace.toggle_dock(DockPosition::Right, window, cx)
11544        });
11545
11546        workspace.update_in(cx, |workspace, window, cx| {
11547            assert!(!workspace.right_dock().read(cx).is_open());
11548            assert!(panel.is_zoomed(window, cx));
11549            assert!(workspace.zoomed.is_none());
11550            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11551        });
11552
11553        // Opening the dock, when it's zoomed, retains focus
11554        workspace.update_in(cx, |workspace, window, cx| {
11555            workspace.toggle_dock(DockPosition::Right, window, cx)
11556        });
11557
11558        workspace.update_in(cx, |workspace, window, cx| {
11559            assert!(workspace.right_dock().read(cx).is_open());
11560            assert!(panel.is_zoomed(window, cx));
11561            assert!(workspace.zoomed.is_some());
11562            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11563        });
11564
11565        // Unzoom and close the panel, zoom the active pane.
11566        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11567        workspace.update_in(cx, |workspace, window, cx| {
11568            workspace.toggle_dock(DockPosition::Right, window, cx)
11569        });
11570        pane.update_in(cx, |pane, window, cx| {
11571            pane.toggle_zoom(&Default::default(), window, cx)
11572        });
11573
11574        // Opening a dock unzooms the pane.
11575        workspace.update_in(cx, |workspace, window, cx| {
11576            workspace.toggle_dock(DockPosition::Right, window, cx)
11577        });
11578        workspace.update_in(cx, |workspace, window, cx| {
11579            let pane = pane.read(cx);
11580            assert!(!pane.is_zoomed());
11581            assert!(!pane.focus_handle(cx).is_focused(window));
11582            assert!(workspace.right_dock().read(cx).is_open());
11583            assert!(workspace.zoomed.is_none());
11584        });
11585    }
11586
11587    #[gpui::test]
11588    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11589        init_test(cx);
11590        let fs = FakeFs::new(cx.executor());
11591
11592        let project = Project::test(fs, [], cx).await;
11593        let (workspace, cx) =
11594            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11595
11596        let panel = workspace.update_in(cx, |workspace, window, cx| {
11597            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11598            workspace.add_panel(panel.clone(), window, cx);
11599            panel
11600        });
11601
11602        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11603        pane.update_in(cx, |pane, window, cx| {
11604            let item = cx.new(TestItem::new);
11605            pane.add_item(Box::new(item), true, true, None, window, cx);
11606        });
11607
11608        // Enable close_panel_on_toggle
11609        cx.update_global(|store: &mut SettingsStore, cx| {
11610            store.update_user_settings(cx, |settings| {
11611                settings.workspace.close_panel_on_toggle = Some(true);
11612            });
11613        });
11614
11615        // Panel starts closed. Toggling should open and focus it.
11616        workspace.update_in(cx, |workspace, window, cx| {
11617            assert!(!workspace.right_dock().read(cx).is_open());
11618            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11619        });
11620
11621        workspace.update_in(cx, |workspace, window, cx| {
11622            assert!(
11623                workspace.right_dock().read(cx).is_open(),
11624                "Dock should be open after toggling from center"
11625            );
11626            assert!(
11627                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11628                "Panel should be focused after toggling from center"
11629            );
11630        });
11631
11632        // Panel is open and focused. Toggling should close the panel and
11633        // return focus to the center.
11634        workspace.update_in(cx, |workspace, window, cx| {
11635            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11636        });
11637
11638        workspace.update_in(cx, |workspace, window, cx| {
11639            assert!(
11640                !workspace.right_dock().read(cx).is_open(),
11641                "Dock should be closed after toggling from focused panel"
11642            );
11643            assert!(
11644                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11645                "Panel should not be focused after toggling from focused panel"
11646            );
11647        });
11648
11649        // Open the dock and focus something else so the panel is open but not
11650        // focused. Toggling should focus the panel (not close it).
11651        workspace.update_in(cx, |workspace, window, cx| {
11652            workspace
11653                .right_dock()
11654                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11655            window.focus(&pane.read(cx).focus_handle(cx), cx);
11656        });
11657
11658        workspace.update_in(cx, |workspace, window, cx| {
11659            assert!(workspace.right_dock().read(cx).is_open());
11660            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11661            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11662        });
11663
11664        workspace.update_in(cx, |workspace, window, cx| {
11665            assert!(
11666                workspace.right_dock().read(cx).is_open(),
11667                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11668            );
11669            assert!(
11670                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11671                "Panel should be focused after toggling an open-but-unfocused panel"
11672            );
11673        });
11674
11675        // Now disable the setting and verify the original behavior: toggling
11676        // from a focused panel moves focus to center but leaves the dock open.
11677        cx.update_global(|store: &mut SettingsStore, cx| {
11678            store.update_user_settings(cx, |settings| {
11679                settings.workspace.close_panel_on_toggle = Some(false);
11680            });
11681        });
11682
11683        workspace.update_in(cx, |workspace, window, cx| {
11684            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11685        });
11686
11687        workspace.update_in(cx, |workspace, window, cx| {
11688            assert!(
11689                workspace.right_dock().read(cx).is_open(),
11690                "Dock should remain open when setting is disabled"
11691            );
11692            assert!(
11693                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11694                "Panel should not be focused after toggling with setting disabled"
11695            );
11696        });
11697    }
11698
11699    #[gpui::test]
11700    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11701        init_test(cx);
11702        let fs = FakeFs::new(cx.executor());
11703
11704        let project = Project::test(fs, [], cx).await;
11705        let (workspace, cx) =
11706            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11707
11708        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11709            workspace.active_pane().clone()
11710        });
11711
11712        // Add an item to the pane so it can be zoomed
11713        workspace.update_in(cx, |workspace, window, cx| {
11714            let item = cx.new(TestItem::new);
11715            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11716        });
11717
11718        // Initially not zoomed
11719        workspace.update_in(cx, |workspace, _window, cx| {
11720            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11721            assert!(
11722                workspace.zoomed.is_none(),
11723                "Workspace should track no zoomed pane"
11724            );
11725            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11726        });
11727
11728        // Zoom In
11729        pane.update_in(cx, |pane, window, cx| {
11730            pane.zoom_in(&crate::ZoomIn, window, cx);
11731        });
11732
11733        workspace.update_in(cx, |workspace, window, cx| {
11734            assert!(
11735                pane.read(cx).is_zoomed(),
11736                "Pane should be zoomed after ZoomIn"
11737            );
11738            assert!(
11739                workspace.zoomed.is_some(),
11740                "Workspace should track the zoomed pane"
11741            );
11742            assert!(
11743                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11744                "ZoomIn should focus the pane"
11745            );
11746        });
11747
11748        // Zoom In again is a no-op
11749        pane.update_in(cx, |pane, window, cx| {
11750            pane.zoom_in(&crate::ZoomIn, window, cx);
11751        });
11752
11753        workspace.update_in(cx, |workspace, window, cx| {
11754            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11755            assert!(
11756                workspace.zoomed.is_some(),
11757                "Workspace still tracks zoomed pane"
11758            );
11759            assert!(
11760                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11761                "Pane remains focused after repeated ZoomIn"
11762            );
11763        });
11764
11765        // Zoom Out
11766        pane.update_in(cx, |pane, window, cx| {
11767            pane.zoom_out(&crate::ZoomOut, window, cx);
11768        });
11769
11770        workspace.update_in(cx, |workspace, _window, cx| {
11771            assert!(
11772                !pane.read(cx).is_zoomed(),
11773                "Pane should unzoom after ZoomOut"
11774            );
11775            assert!(
11776                workspace.zoomed.is_none(),
11777                "Workspace clears zoom tracking after ZoomOut"
11778            );
11779        });
11780
11781        // Zoom Out again is a no-op
11782        pane.update_in(cx, |pane, window, cx| {
11783            pane.zoom_out(&crate::ZoomOut, window, cx);
11784        });
11785
11786        workspace.update_in(cx, |workspace, _window, cx| {
11787            assert!(
11788                !pane.read(cx).is_zoomed(),
11789                "Second ZoomOut keeps pane unzoomed"
11790            );
11791            assert!(
11792                workspace.zoomed.is_none(),
11793                "Workspace remains without zoomed pane"
11794            );
11795        });
11796    }
11797
11798    #[gpui::test]
11799    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11800        init_test(cx);
11801        let fs = FakeFs::new(cx.executor());
11802
11803        let project = Project::test(fs, [], cx).await;
11804        let (workspace, cx) =
11805            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11806        workspace.update_in(cx, |workspace, window, cx| {
11807            // Open two docks
11808            let left_dock = workspace.dock_at_position(DockPosition::Left);
11809            let right_dock = workspace.dock_at_position(DockPosition::Right);
11810
11811            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11812            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11813
11814            assert!(left_dock.read(cx).is_open());
11815            assert!(right_dock.read(cx).is_open());
11816        });
11817
11818        workspace.update_in(cx, |workspace, window, cx| {
11819            // Toggle all docks - should close both
11820            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11821
11822            let left_dock = workspace.dock_at_position(DockPosition::Left);
11823            let right_dock = workspace.dock_at_position(DockPosition::Right);
11824            assert!(!left_dock.read(cx).is_open());
11825            assert!(!right_dock.read(cx).is_open());
11826        });
11827
11828        workspace.update_in(cx, |workspace, window, cx| {
11829            // Toggle again - should reopen both
11830            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11831
11832            let left_dock = workspace.dock_at_position(DockPosition::Left);
11833            let right_dock = workspace.dock_at_position(DockPosition::Right);
11834            assert!(left_dock.read(cx).is_open());
11835            assert!(right_dock.read(cx).is_open());
11836        });
11837    }
11838
11839    #[gpui::test]
11840    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11841        init_test(cx);
11842        let fs = FakeFs::new(cx.executor());
11843
11844        let project = Project::test(fs, [], cx).await;
11845        let (workspace, cx) =
11846            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11847        workspace.update_in(cx, |workspace, window, cx| {
11848            // Open two docks
11849            let left_dock = workspace.dock_at_position(DockPosition::Left);
11850            let right_dock = workspace.dock_at_position(DockPosition::Right);
11851
11852            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11853            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11854
11855            assert!(left_dock.read(cx).is_open());
11856            assert!(right_dock.read(cx).is_open());
11857        });
11858
11859        workspace.update_in(cx, |workspace, window, cx| {
11860            // Close them manually
11861            workspace.toggle_dock(DockPosition::Left, window, cx);
11862            workspace.toggle_dock(DockPosition::Right, window, cx);
11863
11864            let left_dock = workspace.dock_at_position(DockPosition::Left);
11865            let right_dock = workspace.dock_at_position(DockPosition::Right);
11866            assert!(!left_dock.read(cx).is_open());
11867            assert!(!right_dock.read(cx).is_open());
11868        });
11869
11870        workspace.update_in(cx, |workspace, window, cx| {
11871            // Toggle all docks - only last closed (right dock) should reopen
11872            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11873
11874            let left_dock = workspace.dock_at_position(DockPosition::Left);
11875            let right_dock = workspace.dock_at_position(DockPosition::Right);
11876            assert!(!left_dock.read(cx).is_open());
11877            assert!(right_dock.read(cx).is_open());
11878        });
11879    }
11880
11881    #[gpui::test]
11882    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
11883        init_test(cx);
11884        let fs = FakeFs::new(cx.executor());
11885        let project = Project::test(fs, [], cx).await;
11886        let (multi_workspace, cx) =
11887            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11888        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11889
11890        // Open two docks (left and right) with one panel each
11891        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
11892            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11893            workspace.add_panel(left_panel.clone(), window, cx);
11894
11895            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11896            workspace.add_panel(right_panel.clone(), window, cx);
11897
11898            workspace.toggle_dock(DockPosition::Left, window, cx);
11899            workspace.toggle_dock(DockPosition::Right, window, cx);
11900
11901            // Verify initial state
11902            assert!(
11903                workspace.left_dock().read(cx).is_open(),
11904                "Left dock should be open"
11905            );
11906            assert_eq!(
11907                workspace
11908                    .left_dock()
11909                    .read(cx)
11910                    .visible_panel()
11911                    .unwrap()
11912                    .panel_id(),
11913                left_panel.panel_id(),
11914                "Left panel should be visible in left dock"
11915            );
11916            assert!(
11917                workspace.right_dock().read(cx).is_open(),
11918                "Right dock should be open"
11919            );
11920            assert_eq!(
11921                workspace
11922                    .right_dock()
11923                    .read(cx)
11924                    .visible_panel()
11925                    .unwrap()
11926                    .panel_id(),
11927                right_panel.panel_id(),
11928                "Right panel should be visible in right dock"
11929            );
11930            assert!(
11931                !workspace.bottom_dock().read(cx).is_open(),
11932                "Bottom dock should be closed"
11933            );
11934
11935            (left_panel, right_panel)
11936        });
11937
11938        // Focus the left panel and move it to the next position (bottom dock)
11939        workspace.update_in(cx, |workspace, window, cx| {
11940            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
11941            assert!(
11942                left_panel.read(cx).focus_handle(cx).is_focused(window),
11943                "Left panel should be focused"
11944            );
11945        });
11946
11947        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11948
11949        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
11950        workspace.update(cx, |workspace, cx| {
11951            assert!(
11952                !workspace.left_dock().read(cx).is_open(),
11953                "Left dock should be closed"
11954            );
11955            assert!(
11956                workspace.bottom_dock().read(cx).is_open(),
11957                "Bottom dock should now be open"
11958            );
11959            assert_eq!(
11960                left_panel.read(cx).position,
11961                DockPosition::Bottom,
11962                "Left panel should now be in the bottom dock"
11963            );
11964            assert_eq!(
11965                workspace
11966                    .bottom_dock()
11967                    .read(cx)
11968                    .visible_panel()
11969                    .unwrap()
11970                    .panel_id(),
11971                left_panel.panel_id(),
11972                "Left panel should be the visible panel in the bottom dock"
11973            );
11974        });
11975
11976        // Toggle all docks off
11977        workspace.update_in(cx, |workspace, window, cx| {
11978            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11979            assert!(
11980                !workspace.left_dock().read(cx).is_open(),
11981                "Left dock should be closed"
11982            );
11983            assert!(
11984                !workspace.right_dock().read(cx).is_open(),
11985                "Right dock should be closed"
11986            );
11987            assert!(
11988                !workspace.bottom_dock().read(cx).is_open(),
11989                "Bottom dock should be closed"
11990            );
11991        });
11992
11993        // Toggle all docks back on and verify positions are restored
11994        workspace.update_in(cx, |workspace, window, cx| {
11995            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11996            assert!(
11997                !workspace.left_dock().read(cx).is_open(),
11998                "Left dock should remain closed"
11999            );
12000            assert!(
12001                workspace.right_dock().read(cx).is_open(),
12002                "Right dock should remain open"
12003            );
12004            assert!(
12005                workspace.bottom_dock().read(cx).is_open(),
12006                "Bottom dock should remain open"
12007            );
12008            assert_eq!(
12009                left_panel.read(cx).position,
12010                DockPosition::Bottom,
12011                "Left panel should remain in the bottom dock"
12012            );
12013            assert_eq!(
12014                right_panel.read(cx).position,
12015                DockPosition::Right,
12016                "Right panel should remain in the right dock"
12017            );
12018            assert_eq!(
12019                workspace
12020                    .bottom_dock()
12021                    .read(cx)
12022                    .visible_panel()
12023                    .unwrap()
12024                    .panel_id(),
12025                left_panel.panel_id(),
12026                "Left panel should be the visible panel in the right dock"
12027            );
12028        });
12029    }
12030
12031    #[gpui::test]
12032    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12033        init_test(cx);
12034
12035        let fs = FakeFs::new(cx.executor());
12036
12037        let project = Project::test(fs, None, cx).await;
12038        let (workspace, cx) =
12039            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12040
12041        // Let's arrange the panes like this:
12042        //
12043        // +-----------------------+
12044        // |         top           |
12045        // +------+--------+-------+
12046        // | left | center | right |
12047        // +------+--------+-------+
12048        // |        bottom         |
12049        // +-----------------------+
12050
12051        let top_item = cx.new(|cx| {
12052            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12053        });
12054        let bottom_item = cx.new(|cx| {
12055            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12056        });
12057        let left_item = cx.new(|cx| {
12058            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12059        });
12060        let right_item = cx.new(|cx| {
12061            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12062        });
12063        let center_item = cx.new(|cx| {
12064            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12065        });
12066
12067        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12068            let top_pane_id = workspace.active_pane().entity_id();
12069            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12070            workspace.split_pane(
12071                workspace.active_pane().clone(),
12072                SplitDirection::Down,
12073                window,
12074                cx,
12075            );
12076            top_pane_id
12077        });
12078        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12079            let bottom_pane_id = workspace.active_pane().entity_id();
12080            workspace.add_item_to_active_pane(
12081                Box::new(bottom_item.clone()),
12082                None,
12083                false,
12084                window,
12085                cx,
12086            );
12087            workspace.split_pane(
12088                workspace.active_pane().clone(),
12089                SplitDirection::Up,
12090                window,
12091                cx,
12092            );
12093            bottom_pane_id
12094        });
12095        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12096            let left_pane_id = workspace.active_pane().entity_id();
12097            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12098            workspace.split_pane(
12099                workspace.active_pane().clone(),
12100                SplitDirection::Right,
12101                window,
12102                cx,
12103            );
12104            left_pane_id
12105        });
12106        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12107            let right_pane_id = workspace.active_pane().entity_id();
12108            workspace.add_item_to_active_pane(
12109                Box::new(right_item.clone()),
12110                None,
12111                false,
12112                window,
12113                cx,
12114            );
12115            workspace.split_pane(
12116                workspace.active_pane().clone(),
12117                SplitDirection::Left,
12118                window,
12119                cx,
12120            );
12121            right_pane_id
12122        });
12123        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12124            let center_pane_id = workspace.active_pane().entity_id();
12125            workspace.add_item_to_active_pane(
12126                Box::new(center_item.clone()),
12127                None,
12128                false,
12129                window,
12130                cx,
12131            );
12132            center_pane_id
12133        });
12134        cx.executor().run_until_parked();
12135
12136        workspace.update_in(cx, |workspace, window, cx| {
12137            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12138
12139            // Join into next from center pane into right
12140            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12141        });
12142
12143        workspace.update_in(cx, |workspace, window, cx| {
12144            let active_pane = workspace.active_pane();
12145            assert_eq!(right_pane_id, active_pane.entity_id());
12146            assert_eq!(2, active_pane.read(cx).items_len());
12147            let item_ids_in_pane =
12148                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12149            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12150            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12151
12152            // Join into next from right pane into bottom
12153            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12154        });
12155
12156        workspace.update_in(cx, |workspace, window, cx| {
12157            let active_pane = workspace.active_pane();
12158            assert_eq!(bottom_pane_id, active_pane.entity_id());
12159            assert_eq!(3, active_pane.read(cx).items_len());
12160            let item_ids_in_pane =
12161                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12162            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12163            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12164            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12165
12166            // Join into next from bottom pane into left
12167            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12168        });
12169
12170        workspace.update_in(cx, |workspace, window, cx| {
12171            let active_pane = workspace.active_pane();
12172            assert_eq!(left_pane_id, active_pane.entity_id());
12173            assert_eq!(4, active_pane.read(cx).items_len());
12174            let item_ids_in_pane =
12175                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12176            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12177            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12178            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12179            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12180
12181            // Join into next from left pane into top
12182            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12183        });
12184
12185        workspace.update_in(cx, |workspace, window, cx| {
12186            let active_pane = workspace.active_pane();
12187            assert_eq!(top_pane_id, active_pane.entity_id());
12188            assert_eq!(5, active_pane.read(cx).items_len());
12189            let item_ids_in_pane =
12190                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12191            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12192            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12193            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12194            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12195            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12196
12197            // Single pane left: no-op
12198            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12199        });
12200
12201        workspace.update(cx, |workspace, _cx| {
12202            let active_pane = workspace.active_pane();
12203            assert_eq!(top_pane_id, active_pane.entity_id());
12204        });
12205    }
12206
12207    fn add_an_item_to_active_pane(
12208        cx: &mut VisualTestContext,
12209        workspace: &Entity<Workspace>,
12210        item_id: u64,
12211    ) -> Entity<TestItem> {
12212        let item = cx.new(|cx| {
12213            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12214                item_id,
12215                "item{item_id}.txt",
12216                cx,
12217            )])
12218        });
12219        workspace.update_in(cx, |workspace, window, cx| {
12220            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12221        });
12222        item
12223    }
12224
12225    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12226        workspace.update_in(cx, |workspace, window, cx| {
12227            workspace.split_pane(
12228                workspace.active_pane().clone(),
12229                SplitDirection::Right,
12230                window,
12231                cx,
12232            )
12233        })
12234    }
12235
12236    #[gpui::test]
12237    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12238        init_test(cx);
12239        let fs = FakeFs::new(cx.executor());
12240        let project = Project::test(fs, None, cx).await;
12241        let (workspace, cx) =
12242            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12243
12244        add_an_item_to_active_pane(cx, &workspace, 1);
12245        split_pane(cx, &workspace);
12246        add_an_item_to_active_pane(cx, &workspace, 2);
12247        split_pane(cx, &workspace); // empty pane
12248        split_pane(cx, &workspace);
12249        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12250
12251        cx.executor().run_until_parked();
12252
12253        workspace.update(cx, |workspace, cx| {
12254            let num_panes = workspace.panes().len();
12255            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12256            let active_item = workspace
12257                .active_pane()
12258                .read(cx)
12259                .active_item()
12260                .expect("item is in focus");
12261
12262            assert_eq!(num_panes, 4);
12263            assert_eq!(num_items_in_current_pane, 1);
12264            assert_eq!(active_item.item_id(), last_item.item_id());
12265        });
12266
12267        workspace.update_in(cx, |workspace, window, cx| {
12268            workspace.join_all_panes(window, cx);
12269        });
12270
12271        workspace.update(cx, |workspace, cx| {
12272            let num_panes = workspace.panes().len();
12273            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12274            let active_item = workspace
12275                .active_pane()
12276                .read(cx)
12277                .active_item()
12278                .expect("item is in focus");
12279
12280            assert_eq!(num_panes, 1);
12281            assert_eq!(num_items_in_current_pane, 3);
12282            assert_eq!(active_item.item_id(), last_item.item_id());
12283        });
12284    }
12285
12286    #[gpui::test]
12287    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12288        init_test(cx);
12289        let fs = FakeFs::new(cx.executor());
12290
12291        let project = Project::test(fs, [], cx).await;
12292        let (multi_workspace, cx) =
12293            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12294        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12295
12296        workspace.update(cx, |workspace, _cx| {
12297            workspace.bounds.size.width = px(800.);
12298        });
12299
12300        workspace.update_in(cx, |workspace, window, cx| {
12301            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12302            workspace.add_panel(panel, window, cx);
12303            workspace.toggle_dock(DockPosition::Right, window, cx);
12304        });
12305
12306        let (panel, resized_width, ratio_basis_width) =
12307            workspace.update_in(cx, |workspace, window, cx| {
12308                let item = cx.new(|cx| {
12309                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12310                });
12311                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12312
12313                let dock = workspace.right_dock().read(cx);
12314                let workspace_width = workspace.bounds.size.width;
12315                let initial_width = workspace
12316                    .dock_size(&dock, window, cx)
12317                    .expect("flexible dock should have an initial width");
12318
12319                assert_eq!(initial_width, workspace_width / 2.);
12320
12321                workspace.resize_right_dock(px(300.), window, cx);
12322
12323                let dock = workspace.right_dock().read(cx);
12324                let resized_width = workspace
12325                    .dock_size(&dock, window, cx)
12326                    .expect("flexible dock should keep its resized width");
12327
12328                assert_eq!(resized_width, px(300.));
12329
12330                let panel = workspace
12331                    .right_dock()
12332                    .read(cx)
12333                    .visible_panel()
12334                    .expect("flexible dock should have a visible panel")
12335                    .panel_id();
12336
12337                (panel, resized_width, workspace_width)
12338            });
12339
12340        workspace.update_in(cx, |workspace, window, cx| {
12341            workspace.toggle_dock(DockPosition::Right, window, cx);
12342            workspace.toggle_dock(DockPosition::Right, window, cx);
12343
12344            let dock = workspace.right_dock().read(cx);
12345            let reopened_width = workspace
12346                .dock_size(&dock, window, cx)
12347                .expect("flexible dock should restore when reopened");
12348
12349            assert_eq!(reopened_width, resized_width);
12350
12351            let right_dock = workspace.right_dock().read(cx);
12352            let flexible_panel = right_dock
12353                .visible_panel()
12354                .expect("flexible dock should still have a visible panel");
12355            assert_eq!(flexible_panel.panel_id(), panel);
12356            assert_eq!(
12357                right_dock
12358                    .stored_panel_size_state(flexible_panel.as_ref())
12359                    .and_then(|size_state| size_state.flexible_size_ratio),
12360                Some(resized_width.to_f64() as f32 / workspace.bounds.size.width.to_f64() as f32)
12361            );
12362        });
12363
12364        workspace.update_in(cx, |workspace, window, cx| {
12365            workspace.split_pane(
12366                workspace.active_pane().clone(),
12367                SplitDirection::Right,
12368                window,
12369                cx,
12370            );
12371
12372            let dock = workspace.right_dock().read(cx);
12373            let split_width = workspace
12374                .dock_size(&dock, window, cx)
12375                .expect("flexible dock should keep its user-resized proportion");
12376
12377            assert_eq!(split_width, px(300.));
12378
12379            workspace.bounds.size.width = px(1600.);
12380
12381            let dock = workspace.right_dock().read(cx);
12382            let resized_window_width = workspace
12383                .dock_size(&dock, window, cx)
12384                .expect("flexible dock should preserve proportional size on window resize");
12385
12386            assert_eq!(
12387                resized_window_width,
12388                workspace.bounds.size.width
12389                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12390            );
12391        });
12392    }
12393
12394    #[gpui::test]
12395    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12396        init_test(cx);
12397        let fs = FakeFs::new(cx.executor());
12398
12399        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12400        {
12401            let project = Project::test(fs.clone(), [], cx).await;
12402            let (multi_workspace, cx) =
12403                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12404            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12405
12406            workspace.update(cx, |workspace, _cx| {
12407                workspace.set_random_database_id();
12408                workspace.bounds.size.width = px(800.);
12409            });
12410
12411            let panel = workspace.update_in(cx, |workspace, window, cx| {
12412                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12413                workspace.add_panel(panel.clone(), window, cx);
12414                workspace.toggle_dock(DockPosition::Left, window, cx);
12415                panel
12416            });
12417
12418            workspace.update_in(cx, |workspace, window, cx| {
12419                workspace.resize_left_dock(px(350.), window, cx);
12420            });
12421
12422            cx.run_until_parked();
12423
12424            let persisted = workspace.read_with(cx, |workspace, cx| {
12425                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12426            });
12427            assert_eq!(
12428                persisted.and_then(|s| s.size),
12429                Some(px(350.)),
12430                "fixed-width panel size should be persisted to KVP"
12431            );
12432
12433            // Remove the panel and re-add a fresh instance with the same key.
12434            // The new instance should have its size state restored from KVP.
12435            workspace.update_in(cx, |workspace, window, cx| {
12436                workspace.remove_panel(&panel, window, cx);
12437            });
12438
12439            workspace.update_in(cx, |workspace, window, cx| {
12440                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12441                workspace.add_panel(new_panel, window, cx);
12442
12443                let left_dock = workspace.left_dock().read(cx);
12444                let size_state = left_dock
12445                    .panel::<TestPanel>()
12446                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12447                assert_eq!(
12448                    size_state.and_then(|s| s.size),
12449                    Some(px(350.)),
12450                    "re-added fixed-width panel should restore persisted size from KVP"
12451                );
12452            });
12453        }
12454
12455        // Flexible panel: both pixel size and ratio are persisted and restored.
12456        {
12457            let project = Project::test(fs.clone(), [], cx).await;
12458            let (multi_workspace, cx) =
12459                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12460            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12461
12462            workspace.update(cx, |workspace, _cx| {
12463                workspace.set_random_database_id();
12464                workspace.bounds.size.width = px(800.);
12465            });
12466
12467            let panel = workspace.update_in(cx, |workspace, window, cx| {
12468                let item = cx.new(|cx| {
12469                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12470                });
12471                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12472
12473                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12474                workspace.add_panel(panel.clone(), window, cx);
12475                workspace.toggle_dock(DockPosition::Right, window, cx);
12476                panel
12477            });
12478
12479            workspace.update_in(cx, |workspace, window, cx| {
12480                workspace.resize_right_dock(px(300.), window, cx);
12481            });
12482
12483            cx.run_until_parked();
12484
12485            let persisted = workspace
12486                .read_with(cx, |workspace, cx| {
12487                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12488                })
12489                .expect("flexible panel state should be persisted to KVP");
12490            assert_eq!(
12491                persisted.size, None,
12492                "flexible panel should not persist a redundant pixel size"
12493            );
12494            let original_ratio = persisted
12495                .flexible_size_ratio
12496                .expect("flexible panel ratio should be persisted");
12497
12498            // Remove the panel and re-add: both size and ratio should be restored.
12499            workspace.update_in(cx, |workspace, window, cx| {
12500                workspace.remove_panel(&panel, window, cx);
12501            });
12502
12503            workspace.update_in(cx, |workspace, window, cx| {
12504                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12505                workspace.add_panel(new_panel, window, cx);
12506
12507                let right_dock = workspace.right_dock().read(cx);
12508                let size_state = right_dock
12509                    .panel::<TestPanel>()
12510                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12511                    .expect("re-added flexible panel should have restored size state from KVP");
12512                assert_eq!(
12513                    size_state.size, None,
12514                    "re-added flexible panel should not have a persisted pixel size"
12515                );
12516                assert_eq!(
12517                    size_state.flexible_size_ratio,
12518                    Some(original_ratio),
12519                    "re-added flexible panel should restore persisted ratio"
12520                );
12521            });
12522        }
12523    }
12524
12525    #[gpui::test]
12526    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12527        init_test(cx);
12528        let fs = FakeFs::new(cx.executor());
12529
12530        let project = Project::test(fs, [], cx).await;
12531        let (multi_workspace, cx) =
12532            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12533        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12534
12535        workspace.update(cx, |workspace, _cx| {
12536            workspace.bounds.size.width = px(900.);
12537        });
12538
12539        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12540        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12541        // and the center pane each take half the workspace width.
12542        workspace.update_in(cx, |workspace, window, cx| {
12543            let item = cx.new(|cx| {
12544                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12545            });
12546            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12547
12548            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12549            workspace.add_panel(panel, window, cx);
12550            workspace.toggle_dock(DockPosition::Left, window, cx);
12551
12552            let left_dock = workspace.left_dock().read(cx);
12553            let left_width = workspace
12554                .dock_size(&left_dock, window, cx)
12555                .expect("left dock should have an active panel");
12556
12557            assert_eq!(
12558                left_width,
12559                workspace.bounds.size.width / 2.,
12560                "flexible left panel should split evenly with the center pane"
12561            );
12562        });
12563
12564        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12565        // change horizontal width fractions, so the flexible panel stays at the same
12566        // width as each half of the split.
12567        workspace.update_in(cx, |workspace, window, cx| {
12568            workspace.split_pane(
12569                workspace.active_pane().clone(),
12570                SplitDirection::Down,
12571                window,
12572                cx,
12573            );
12574
12575            let left_dock = workspace.left_dock().read(cx);
12576            let left_width = workspace
12577                .dock_size(&left_dock, window, cx)
12578                .expect("left dock should still have an active panel after vertical split");
12579
12580            assert_eq!(
12581                left_width,
12582                workspace.bounds.size.width / 2.,
12583                "flexible left panel width should match each vertically-split pane"
12584            );
12585        });
12586
12587        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
12588        // size reduces the available width, so the flexible left panel and the center
12589        // panes all shrink proportionally to accommodate it.
12590        workspace.update_in(cx, |workspace, window, cx| {
12591            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
12592            workspace.add_panel(panel, window, cx);
12593            workspace.toggle_dock(DockPosition::Right, window, cx);
12594
12595            let right_dock = workspace.right_dock().read(cx);
12596            let right_width = workspace
12597                .dock_size(&right_dock, window, cx)
12598                .expect("right dock should have an active panel");
12599
12600            let left_dock = workspace.left_dock().read(cx);
12601            let left_width = workspace
12602                .dock_size(&left_dock, window, cx)
12603                .expect("left dock should still have an active panel");
12604
12605            let available_width = workspace.bounds.size.width - right_width;
12606            assert_eq!(
12607                left_width,
12608                available_width / 2.,
12609                "flexible left panel should shrink proportionally as the right dock takes space"
12610            );
12611        });
12612    }
12613
12614    struct TestModal(FocusHandle);
12615
12616    impl TestModal {
12617        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
12618            Self(cx.focus_handle())
12619        }
12620    }
12621
12622    impl EventEmitter<DismissEvent> for TestModal {}
12623
12624    impl Focusable for TestModal {
12625        fn focus_handle(&self, _cx: &App) -> FocusHandle {
12626            self.0.clone()
12627        }
12628    }
12629
12630    impl ModalView for TestModal {}
12631
12632    impl Render for TestModal {
12633        fn render(
12634            &mut self,
12635            _window: &mut Window,
12636            _cx: &mut Context<TestModal>,
12637        ) -> impl IntoElement {
12638            div().track_focus(&self.0)
12639        }
12640    }
12641
12642    #[gpui::test]
12643    async fn test_panels(cx: &mut gpui::TestAppContext) {
12644        init_test(cx);
12645        let fs = FakeFs::new(cx.executor());
12646
12647        let project = Project::test(fs, [], cx).await;
12648        let (multi_workspace, cx) =
12649            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12650        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12651
12652        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
12653            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12654            workspace.add_panel(panel_1.clone(), window, cx);
12655            workspace.toggle_dock(DockPosition::Left, window, cx);
12656            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12657            workspace.add_panel(panel_2.clone(), window, cx);
12658            workspace.toggle_dock(DockPosition::Right, window, cx);
12659
12660            let left_dock = workspace.left_dock();
12661            assert_eq!(
12662                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12663                panel_1.panel_id()
12664            );
12665            assert_eq!(
12666                workspace.dock_size(&left_dock.read(cx), window, cx),
12667                Some(px(300.))
12668            );
12669
12670            workspace.resize_left_dock(px(1337.), window, cx);
12671            assert_eq!(
12672                workspace
12673                    .right_dock()
12674                    .read(cx)
12675                    .visible_panel()
12676                    .unwrap()
12677                    .panel_id(),
12678                panel_2.panel_id(),
12679            );
12680
12681            (panel_1, panel_2)
12682        });
12683
12684        // Move panel_1 to the right
12685        panel_1.update_in(cx, |panel_1, window, cx| {
12686            panel_1.set_position(DockPosition::Right, window, cx)
12687        });
12688
12689        workspace.update_in(cx, |workspace, window, cx| {
12690            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
12691            // Since it was the only panel on the left, the left dock should now be closed.
12692            assert!(!workspace.left_dock().read(cx).is_open());
12693            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
12694            let right_dock = workspace.right_dock();
12695            assert_eq!(
12696                right_dock.read(cx).visible_panel().unwrap().panel_id(),
12697                panel_1.panel_id()
12698            );
12699            assert_eq!(
12700                right_dock
12701                    .read(cx)
12702                    .active_panel_size()
12703                    .unwrap()
12704                    .size
12705                    .unwrap(),
12706                px(1337.)
12707            );
12708
12709            // Now we move panel_2 to the left
12710            panel_2.set_position(DockPosition::Left, window, cx);
12711        });
12712
12713        workspace.update(cx, |workspace, cx| {
12714            // Since panel_2 was not visible on the right, we don't open the left dock.
12715            assert!(!workspace.left_dock().read(cx).is_open());
12716            // And the right dock is unaffected in its displaying of panel_1
12717            assert!(workspace.right_dock().read(cx).is_open());
12718            assert_eq!(
12719                workspace
12720                    .right_dock()
12721                    .read(cx)
12722                    .visible_panel()
12723                    .unwrap()
12724                    .panel_id(),
12725                panel_1.panel_id(),
12726            );
12727        });
12728
12729        // Move panel_1 back to the left
12730        panel_1.update_in(cx, |panel_1, window, cx| {
12731            panel_1.set_position(DockPosition::Left, window, cx)
12732        });
12733
12734        workspace.update_in(cx, |workspace, window, cx| {
12735            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
12736            let left_dock = workspace.left_dock();
12737            assert!(left_dock.read(cx).is_open());
12738            assert_eq!(
12739                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12740                panel_1.panel_id()
12741            );
12742            assert_eq!(
12743                workspace.dock_size(&left_dock.read(cx), window, cx),
12744                Some(px(1337.))
12745            );
12746            // And the right dock should be closed as it no longer has any panels.
12747            assert!(!workspace.right_dock().read(cx).is_open());
12748
12749            // Now we move panel_1 to the bottom
12750            panel_1.set_position(DockPosition::Bottom, window, cx);
12751        });
12752
12753        workspace.update_in(cx, |workspace, window, cx| {
12754            // Since panel_1 was visible on the left, we close the left dock.
12755            assert!(!workspace.left_dock().read(cx).is_open());
12756            // The bottom dock is sized based on the panel's default size,
12757            // since the panel orientation changed from vertical to horizontal.
12758            let bottom_dock = workspace.bottom_dock();
12759            assert_eq!(
12760                workspace.dock_size(&bottom_dock.read(cx), window, cx),
12761                Some(px(300.))
12762            );
12763            // Close bottom dock and move panel_1 back to the left.
12764            bottom_dock.update(cx, |bottom_dock, cx| {
12765                bottom_dock.set_open(false, window, cx)
12766            });
12767            panel_1.set_position(DockPosition::Left, window, cx);
12768        });
12769
12770        // Emit activated event on panel 1
12771        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
12772
12773        // Now the left dock is open and panel_1 is active and focused.
12774        workspace.update_in(cx, |workspace, window, cx| {
12775            let left_dock = workspace.left_dock();
12776            assert!(left_dock.read(cx).is_open());
12777            assert_eq!(
12778                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12779                panel_1.panel_id(),
12780            );
12781            assert!(panel_1.focus_handle(cx).is_focused(window));
12782        });
12783
12784        // Emit closed event on panel 2, which is not active
12785        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12786
12787        // Wo don't close the left dock, because panel_2 wasn't the active panel
12788        workspace.update(cx, |workspace, cx| {
12789            let left_dock = workspace.left_dock();
12790            assert!(left_dock.read(cx).is_open());
12791            assert_eq!(
12792                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12793                panel_1.panel_id(),
12794            );
12795        });
12796
12797        // Emitting a ZoomIn event shows the panel as zoomed.
12798        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
12799        workspace.read_with(cx, |workspace, _| {
12800            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12801            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
12802        });
12803
12804        // Move panel to another dock while it is zoomed
12805        panel_1.update_in(cx, |panel, window, cx| {
12806            panel.set_position(DockPosition::Right, window, cx)
12807        });
12808        workspace.read_with(cx, |workspace, _| {
12809            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12810
12811            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12812        });
12813
12814        // This is a helper for getting a:
12815        // - valid focus on an element,
12816        // - that isn't a part of the panes and panels system of the Workspace,
12817        // - and doesn't trigger the 'on_focus_lost' API.
12818        let focus_other_view = {
12819            let workspace = workspace.clone();
12820            move |cx: &mut VisualTestContext| {
12821                workspace.update_in(cx, |workspace, window, cx| {
12822                    if workspace.active_modal::<TestModal>(cx).is_some() {
12823                        workspace.toggle_modal(window, cx, TestModal::new);
12824                        workspace.toggle_modal(window, cx, TestModal::new);
12825                    } else {
12826                        workspace.toggle_modal(window, cx, TestModal::new);
12827                    }
12828                })
12829            }
12830        };
12831
12832        // If focus is transferred to another view that's not a panel or another pane, we still show
12833        // the panel as zoomed.
12834        focus_other_view(cx);
12835        workspace.read_with(cx, |workspace, _| {
12836            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12837            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12838        });
12839
12840        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
12841        workspace.update_in(cx, |_workspace, window, cx| {
12842            cx.focus_self(window);
12843        });
12844        workspace.read_with(cx, |workspace, _| {
12845            assert_eq!(workspace.zoomed, None);
12846            assert_eq!(workspace.zoomed_position, None);
12847        });
12848
12849        // If focus is transferred again to another view that's not a panel or a pane, we won't
12850        // show the panel as zoomed because it wasn't zoomed before.
12851        focus_other_view(cx);
12852        workspace.read_with(cx, |workspace, _| {
12853            assert_eq!(workspace.zoomed, None);
12854            assert_eq!(workspace.zoomed_position, None);
12855        });
12856
12857        // When the panel is activated, it is zoomed again.
12858        cx.dispatch_action(ToggleRightDock);
12859        workspace.read_with(cx, |workspace, _| {
12860            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12861            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12862        });
12863
12864        // Emitting a ZoomOut event unzooms the panel.
12865        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
12866        workspace.read_with(cx, |workspace, _| {
12867            assert_eq!(workspace.zoomed, None);
12868            assert_eq!(workspace.zoomed_position, None);
12869        });
12870
12871        // Emit closed event on panel 1, which is active
12872        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12873
12874        // Now the left dock is closed, because panel_1 was the active panel
12875        workspace.update(cx, |workspace, cx| {
12876            let right_dock = workspace.right_dock();
12877            assert!(!right_dock.read(cx).is_open());
12878        });
12879    }
12880
12881    #[gpui::test]
12882    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
12883        init_test(cx);
12884
12885        let fs = FakeFs::new(cx.background_executor.clone());
12886        let project = Project::test(fs, [], cx).await;
12887        let (workspace, cx) =
12888            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12889        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12890
12891        let dirty_regular_buffer = cx.new(|cx| {
12892            TestItem::new(cx)
12893                .with_dirty(true)
12894                .with_label("1.txt")
12895                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12896        });
12897        let dirty_regular_buffer_2 = cx.new(|cx| {
12898            TestItem::new(cx)
12899                .with_dirty(true)
12900                .with_label("2.txt")
12901                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12902        });
12903        let dirty_multi_buffer_with_both = cx.new(|cx| {
12904            TestItem::new(cx)
12905                .with_dirty(true)
12906                .with_buffer_kind(ItemBufferKind::Multibuffer)
12907                .with_label("Fake Project Search")
12908                .with_project_items(&[
12909                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12910                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12911                ])
12912        });
12913        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12914        workspace.update_in(cx, |workspace, window, cx| {
12915            workspace.add_item(
12916                pane.clone(),
12917                Box::new(dirty_regular_buffer.clone()),
12918                None,
12919                false,
12920                false,
12921                window,
12922                cx,
12923            );
12924            workspace.add_item(
12925                pane.clone(),
12926                Box::new(dirty_regular_buffer_2.clone()),
12927                None,
12928                false,
12929                false,
12930                window,
12931                cx,
12932            );
12933            workspace.add_item(
12934                pane.clone(),
12935                Box::new(dirty_multi_buffer_with_both.clone()),
12936                None,
12937                false,
12938                false,
12939                window,
12940                cx,
12941            );
12942        });
12943
12944        pane.update_in(cx, |pane, window, cx| {
12945            pane.activate_item(2, true, true, window, cx);
12946            assert_eq!(
12947                pane.active_item().unwrap().item_id(),
12948                multi_buffer_with_both_files_id,
12949                "Should select the multi buffer in the pane"
12950            );
12951        });
12952        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12953            pane.close_other_items(
12954                &CloseOtherItems {
12955                    save_intent: Some(SaveIntent::Save),
12956                    close_pinned: true,
12957                },
12958                None,
12959                window,
12960                cx,
12961            )
12962        });
12963        cx.background_executor.run_until_parked();
12964        assert!(!cx.has_pending_prompt());
12965        close_all_but_multi_buffer_task
12966            .await
12967            .expect("Closing all buffers but the multi buffer failed");
12968        pane.update(cx, |pane, cx| {
12969            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
12970            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
12971            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
12972            assert_eq!(pane.items_len(), 1);
12973            assert_eq!(
12974                pane.active_item().unwrap().item_id(),
12975                multi_buffer_with_both_files_id,
12976                "Should have only the multi buffer left in the pane"
12977            );
12978            assert!(
12979                dirty_multi_buffer_with_both.read(cx).is_dirty,
12980                "The multi buffer containing the unsaved buffer should still be dirty"
12981            );
12982        });
12983
12984        dirty_regular_buffer.update(cx, |buffer, cx| {
12985            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
12986        });
12987
12988        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12989            pane.close_active_item(
12990                &CloseActiveItem {
12991                    save_intent: Some(SaveIntent::Close),
12992                    close_pinned: false,
12993                },
12994                window,
12995                cx,
12996            )
12997        });
12998        cx.background_executor.run_until_parked();
12999        assert!(
13000            cx.has_pending_prompt(),
13001            "Dirty multi buffer should prompt a save dialog"
13002        );
13003        cx.simulate_prompt_answer("Save");
13004        cx.background_executor.run_until_parked();
13005        close_multi_buffer_task
13006            .await
13007            .expect("Closing the multi buffer failed");
13008        pane.update(cx, |pane, cx| {
13009            assert_eq!(
13010                dirty_multi_buffer_with_both.read(cx).save_count,
13011                1,
13012                "Multi buffer item should get be saved"
13013            );
13014            // Test impl does not save inner items, so we do not assert them
13015            assert_eq!(
13016                pane.items_len(),
13017                0,
13018                "No more items should be left in the pane"
13019            );
13020            assert!(pane.active_item().is_none());
13021        });
13022    }
13023
13024    #[gpui::test]
13025    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13026        cx: &mut TestAppContext,
13027    ) {
13028        init_test(cx);
13029
13030        let fs = FakeFs::new(cx.background_executor.clone());
13031        let project = Project::test(fs, [], cx).await;
13032        let (workspace, cx) =
13033            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13034        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13035
13036        let dirty_regular_buffer = cx.new(|cx| {
13037            TestItem::new(cx)
13038                .with_dirty(true)
13039                .with_label("1.txt")
13040                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13041        });
13042        let dirty_regular_buffer_2 = cx.new(|cx| {
13043            TestItem::new(cx)
13044                .with_dirty(true)
13045                .with_label("2.txt")
13046                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13047        });
13048        let clear_regular_buffer = cx.new(|cx| {
13049            TestItem::new(cx)
13050                .with_label("3.txt")
13051                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13052        });
13053
13054        let dirty_multi_buffer_with_both = cx.new(|cx| {
13055            TestItem::new(cx)
13056                .with_dirty(true)
13057                .with_buffer_kind(ItemBufferKind::Multibuffer)
13058                .with_label("Fake Project Search")
13059                .with_project_items(&[
13060                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13061                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13062                    clear_regular_buffer.read(cx).project_items[0].clone(),
13063                ])
13064        });
13065        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13066        workspace.update_in(cx, |workspace, window, cx| {
13067            workspace.add_item(
13068                pane.clone(),
13069                Box::new(dirty_regular_buffer.clone()),
13070                None,
13071                false,
13072                false,
13073                window,
13074                cx,
13075            );
13076            workspace.add_item(
13077                pane.clone(),
13078                Box::new(dirty_multi_buffer_with_both.clone()),
13079                None,
13080                false,
13081                false,
13082                window,
13083                cx,
13084            );
13085        });
13086
13087        pane.update_in(cx, |pane, window, cx| {
13088            pane.activate_item(1, true, true, window, cx);
13089            assert_eq!(
13090                pane.active_item().unwrap().item_id(),
13091                multi_buffer_with_both_files_id,
13092                "Should select the multi buffer in the pane"
13093            );
13094        });
13095        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13096            pane.close_active_item(
13097                &CloseActiveItem {
13098                    save_intent: None,
13099                    close_pinned: false,
13100                },
13101                window,
13102                cx,
13103            )
13104        });
13105        cx.background_executor.run_until_parked();
13106        assert!(
13107            cx.has_pending_prompt(),
13108            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13109        );
13110    }
13111
13112    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13113    /// closed when they are deleted from disk.
13114    #[gpui::test]
13115    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13116        init_test(cx);
13117
13118        // Enable the close_on_disk_deletion setting
13119        cx.update_global(|store: &mut SettingsStore, cx| {
13120            store.update_user_settings(cx, |settings| {
13121                settings.workspace.close_on_file_delete = Some(true);
13122            });
13123        });
13124
13125        let fs = FakeFs::new(cx.background_executor.clone());
13126        let project = Project::test(fs, [], cx).await;
13127        let (workspace, cx) =
13128            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13129        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13130
13131        // Create a test item that simulates a file
13132        let item = cx.new(|cx| {
13133            TestItem::new(cx)
13134                .with_label("test.txt")
13135                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13136        });
13137
13138        // Add item to workspace
13139        workspace.update_in(cx, |workspace, window, cx| {
13140            workspace.add_item(
13141                pane.clone(),
13142                Box::new(item.clone()),
13143                None,
13144                false,
13145                false,
13146                window,
13147                cx,
13148            );
13149        });
13150
13151        // Verify the item is in the pane
13152        pane.read_with(cx, |pane, _| {
13153            assert_eq!(pane.items().count(), 1);
13154        });
13155
13156        // Simulate file deletion by setting the item's deleted state
13157        item.update(cx, |item, _| {
13158            item.set_has_deleted_file(true);
13159        });
13160
13161        // Emit UpdateTab event to trigger the close behavior
13162        cx.run_until_parked();
13163        item.update(cx, |_, cx| {
13164            cx.emit(ItemEvent::UpdateTab);
13165        });
13166
13167        // Allow the close operation to complete
13168        cx.run_until_parked();
13169
13170        // Verify the item was automatically closed
13171        pane.read_with(cx, |pane, _| {
13172            assert_eq!(
13173                pane.items().count(),
13174                0,
13175                "Item should be automatically closed when file is deleted"
13176            );
13177        });
13178    }
13179
13180    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13181    /// open with a strikethrough when they are deleted from disk.
13182    #[gpui::test]
13183    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13184        init_test(cx);
13185
13186        // Ensure close_on_disk_deletion is disabled (default)
13187        cx.update_global(|store: &mut SettingsStore, cx| {
13188            store.update_user_settings(cx, |settings| {
13189                settings.workspace.close_on_file_delete = Some(false);
13190            });
13191        });
13192
13193        let fs = FakeFs::new(cx.background_executor.clone());
13194        let project = Project::test(fs, [], cx).await;
13195        let (workspace, cx) =
13196            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13197        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13198
13199        // Create a test item that simulates a file
13200        let item = cx.new(|cx| {
13201            TestItem::new(cx)
13202                .with_label("test.txt")
13203                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13204        });
13205
13206        // Add item to workspace
13207        workspace.update_in(cx, |workspace, window, cx| {
13208            workspace.add_item(
13209                pane.clone(),
13210                Box::new(item.clone()),
13211                None,
13212                false,
13213                false,
13214                window,
13215                cx,
13216            );
13217        });
13218
13219        // Verify the item is in the pane
13220        pane.read_with(cx, |pane, _| {
13221            assert_eq!(pane.items().count(), 1);
13222        });
13223
13224        // Simulate file deletion
13225        item.update(cx, |item, _| {
13226            item.set_has_deleted_file(true);
13227        });
13228
13229        // Emit UpdateTab event
13230        cx.run_until_parked();
13231        item.update(cx, |_, cx| {
13232            cx.emit(ItemEvent::UpdateTab);
13233        });
13234
13235        // Allow any potential close operation to complete
13236        cx.run_until_parked();
13237
13238        // Verify the item remains open (with strikethrough)
13239        pane.read_with(cx, |pane, _| {
13240            assert_eq!(
13241                pane.items().count(),
13242                1,
13243                "Item should remain open when close_on_disk_deletion is disabled"
13244            );
13245        });
13246
13247        // Verify the item shows as deleted
13248        item.read_with(cx, |item, _| {
13249            assert!(
13250                item.has_deleted_file,
13251                "Item should be marked as having deleted file"
13252            );
13253        });
13254    }
13255
13256    /// Tests that dirty files are not automatically closed when deleted from disk,
13257    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13258    /// unsaved changes without being prompted.
13259    #[gpui::test]
13260    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13261        init_test(cx);
13262
13263        // Enable the close_on_file_delete setting
13264        cx.update_global(|store: &mut SettingsStore, cx| {
13265            store.update_user_settings(cx, |settings| {
13266                settings.workspace.close_on_file_delete = Some(true);
13267            });
13268        });
13269
13270        let fs = FakeFs::new(cx.background_executor.clone());
13271        let project = Project::test(fs, [], cx).await;
13272        let (workspace, cx) =
13273            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13274        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13275
13276        // Create a dirty test item
13277        let item = cx.new(|cx| {
13278            TestItem::new(cx)
13279                .with_dirty(true)
13280                .with_label("test.txt")
13281                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13282        });
13283
13284        // Add item to workspace
13285        workspace.update_in(cx, |workspace, window, cx| {
13286            workspace.add_item(
13287                pane.clone(),
13288                Box::new(item.clone()),
13289                None,
13290                false,
13291                false,
13292                window,
13293                cx,
13294            );
13295        });
13296
13297        // Simulate file deletion
13298        item.update(cx, |item, _| {
13299            item.set_has_deleted_file(true);
13300        });
13301
13302        // Emit UpdateTab event to trigger the close behavior
13303        cx.run_until_parked();
13304        item.update(cx, |_, cx| {
13305            cx.emit(ItemEvent::UpdateTab);
13306        });
13307
13308        // Allow any potential close operation to complete
13309        cx.run_until_parked();
13310
13311        // Verify the item remains open (dirty files are not auto-closed)
13312        pane.read_with(cx, |pane, _| {
13313            assert_eq!(
13314                pane.items().count(),
13315                1,
13316                "Dirty items should not be automatically closed even when file is deleted"
13317            );
13318        });
13319
13320        // Verify the item is marked as deleted and still dirty
13321        item.read_with(cx, |item, _| {
13322            assert!(
13323                item.has_deleted_file,
13324                "Item should be marked as having deleted file"
13325            );
13326            assert!(item.is_dirty, "Item should still be dirty");
13327        });
13328    }
13329
13330    /// Tests that navigation history is cleaned up when files are auto-closed
13331    /// due to deletion from disk.
13332    #[gpui::test]
13333    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13334        init_test(cx);
13335
13336        // Enable the close_on_file_delete setting
13337        cx.update_global(|store: &mut SettingsStore, cx| {
13338            store.update_user_settings(cx, |settings| {
13339                settings.workspace.close_on_file_delete = Some(true);
13340            });
13341        });
13342
13343        let fs = FakeFs::new(cx.background_executor.clone());
13344        let project = Project::test(fs, [], cx).await;
13345        let (workspace, cx) =
13346            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13347        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13348
13349        // Create test items
13350        let item1 = cx.new(|cx| {
13351            TestItem::new(cx)
13352                .with_label("test1.txt")
13353                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13354        });
13355        let item1_id = item1.item_id();
13356
13357        let item2 = cx.new(|cx| {
13358            TestItem::new(cx)
13359                .with_label("test2.txt")
13360                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13361        });
13362
13363        // Add items to workspace
13364        workspace.update_in(cx, |workspace, window, cx| {
13365            workspace.add_item(
13366                pane.clone(),
13367                Box::new(item1.clone()),
13368                None,
13369                false,
13370                false,
13371                window,
13372                cx,
13373            );
13374            workspace.add_item(
13375                pane.clone(),
13376                Box::new(item2.clone()),
13377                None,
13378                false,
13379                false,
13380                window,
13381                cx,
13382            );
13383        });
13384
13385        // Activate item1 to ensure it gets navigation entries
13386        pane.update_in(cx, |pane, window, cx| {
13387            pane.activate_item(0, true, true, window, cx);
13388        });
13389
13390        // Switch to item2 and back to create navigation history
13391        pane.update_in(cx, |pane, window, cx| {
13392            pane.activate_item(1, true, true, window, cx);
13393        });
13394        cx.run_until_parked();
13395
13396        pane.update_in(cx, |pane, window, cx| {
13397            pane.activate_item(0, true, true, window, cx);
13398        });
13399        cx.run_until_parked();
13400
13401        // Simulate file deletion for item1
13402        item1.update(cx, |item, _| {
13403            item.set_has_deleted_file(true);
13404        });
13405
13406        // Emit UpdateTab event to trigger the close behavior
13407        item1.update(cx, |_, cx| {
13408            cx.emit(ItemEvent::UpdateTab);
13409        });
13410        cx.run_until_parked();
13411
13412        // Verify item1 was closed
13413        pane.read_with(cx, |pane, _| {
13414            assert_eq!(
13415                pane.items().count(),
13416                1,
13417                "Should have 1 item remaining after auto-close"
13418            );
13419        });
13420
13421        // Check navigation history after close
13422        let has_item = pane.read_with(cx, |pane, cx| {
13423            let mut has_item = false;
13424            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13425                if entry.item.id() == item1_id {
13426                    has_item = true;
13427                }
13428            });
13429            has_item
13430        });
13431
13432        assert!(
13433            !has_item,
13434            "Navigation history should not contain closed item entries"
13435        );
13436    }
13437
13438    #[gpui::test]
13439    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13440        cx: &mut TestAppContext,
13441    ) {
13442        init_test(cx);
13443
13444        let fs = FakeFs::new(cx.background_executor.clone());
13445        let project = Project::test(fs, [], cx).await;
13446        let (workspace, cx) =
13447            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13448        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13449
13450        let dirty_regular_buffer = cx.new(|cx| {
13451            TestItem::new(cx)
13452                .with_dirty(true)
13453                .with_label("1.txt")
13454                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13455        });
13456        let dirty_regular_buffer_2 = cx.new(|cx| {
13457            TestItem::new(cx)
13458                .with_dirty(true)
13459                .with_label("2.txt")
13460                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13461        });
13462        let clear_regular_buffer = cx.new(|cx| {
13463            TestItem::new(cx)
13464                .with_label("3.txt")
13465                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13466        });
13467
13468        let dirty_multi_buffer = cx.new(|cx| {
13469            TestItem::new(cx)
13470                .with_dirty(true)
13471                .with_buffer_kind(ItemBufferKind::Multibuffer)
13472                .with_label("Fake Project Search")
13473                .with_project_items(&[
13474                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13475                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13476                    clear_regular_buffer.read(cx).project_items[0].clone(),
13477                ])
13478        });
13479        workspace.update_in(cx, |workspace, window, cx| {
13480            workspace.add_item(
13481                pane.clone(),
13482                Box::new(dirty_regular_buffer.clone()),
13483                None,
13484                false,
13485                false,
13486                window,
13487                cx,
13488            );
13489            workspace.add_item(
13490                pane.clone(),
13491                Box::new(dirty_regular_buffer_2.clone()),
13492                None,
13493                false,
13494                false,
13495                window,
13496                cx,
13497            );
13498            workspace.add_item(
13499                pane.clone(),
13500                Box::new(dirty_multi_buffer.clone()),
13501                None,
13502                false,
13503                false,
13504                window,
13505                cx,
13506            );
13507        });
13508
13509        pane.update_in(cx, |pane, window, cx| {
13510            pane.activate_item(2, true, true, window, cx);
13511            assert_eq!(
13512                pane.active_item().unwrap().item_id(),
13513                dirty_multi_buffer.item_id(),
13514                "Should select the multi buffer in the pane"
13515            );
13516        });
13517        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13518            pane.close_active_item(
13519                &CloseActiveItem {
13520                    save_intent: None,
13521                    close_pinned: false,
13522                },
13523                window,
13524                cx,
13525            )
13526        });
13527        cx.background_executor.run_until_parked();
13528        assert!(
13529            !cx.has_pending_prompt(),
13530            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
13531        );
13532        close_multi_buffer_task
13533            .await
13534            .expect("Closing multi buffer failed");
13535        pane.update(cx, |pane, cx| {
13536            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
13537            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
13538            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
13539            assert_eq!(
13540                pane.items()
13541                    .map(|item| item.item_id())
13542                    .sorted()
13543                    .collect::<Vec<_>>(),
13544                vec![
13545                    dirty_regular_buffer.item_id(),
13546                    dirty_regular_buffer_2.item_id(),
13547                ],
13548                "Should have no multi buffer left in the pane"
13549            );
13550            assert!(dirty_regular_buffer.read(cx).is_dirty);
13551            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
13552        });
13553    }
13554
13555    #[gpui::test]
13556    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
13557        init_test(cx);
13558        let fs = FakeFs::new(cx.executor());
13559        let project = Project::test(fs, [], cx).await;
13560        let (multi_workspace, cx) =
13561            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13562        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13563
13564        // Add a new panel to the right dock, opening the dock and setting the
13565        // focus to the new panel.
13566        let panel = workspace.update_in(cx, |workspace, window, cx| {
13567            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13568            workspace.add_panel(panel.clone(), window, cx);
13569
13570            workspace
13571                .right_dock()
13572                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13573
13574            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13575
13576            panel
13577        });
13578
13579        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13580        // panel to the next valid position which, in this case, is the left
13581        // dock.
13582        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13583        workspace.update(cx, |workspace, cx| {
13584            assert!(workspace.left_dock().read(cx).is_open());
13585            assert_eq!(panel.read(cx).position, DockPosition::Left);
13586        });
13587
13588        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13589        // panel to the next valid position which, in this case, is the bottom
13590        // dock.
13591        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13592        workspace.update(cx, |workspace, cx| {
13593            assert!(workspace.bottom_dock().read(cx).is_open());
13594            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
13595        });
13596
13597        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
13598        // around moving the panel to its initial position, the right dock.
13599        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13600        workspace.update(cx, |workspace, cx| {
13601            assert!(workspace.right_dock().read(cx).is_open());
13602            assert_eq!(panel.read(cx).position, DockPosition::Right);
13603        });
13604
13605        // Remove focus from the panel, ensuring that, if the panel is not
13606        // focused, the `MoveFocusedPanelToNextPosition` action does not update
13607        // the panel's position, so the panel is still in the right dock.
13608        workspace.update_in(cx, |workspace, window, cx| {
13609            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13610        });
13611
13612        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13613        workspace.update(cx, |workspace, cx| {
13614            assert!(workspace.right_dock().read(cx).is_open());
13615            assert_eq!(panel.read(cx).position, DockPosition::Right);
13616        });
13617    }
13618
13619    #[gpui::test]
13620    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
13621        init_test(cx);
13622
13623        let fs = FakeFs::new(cx.executor());
13624        let project = Project::test(fs, [], cx).await;
13625        let (workspace, cx) =
13626            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13627
13628        let item_1 = cx.new(|cx| {
13629            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13630        });
13631        workspace.update_in(cx, |workspace, window, cx| {
13632            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13633            workspace.move_item_to_pane_in_direction(
13634                &MoveItemToPaneInDirection {
13635                    direction: SplitDirection::Right,
13636                    focus: true,
13637                    clone: false,
13638                },
13639                window,
13640                cx,
13641            );
13642            workspace.move_item_to_pane_at_index(
13643                &MoveItemToPane {
13644                    destination: 3,
13645                    focus: true,
13646                    clone: false,
13647                },
13648                window,
13649                cx,
13650            );
13651
13652            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
13653            assert_eq!(
13654                pane_items_paths(&workspace.active_pane, cx),
13655                vec!["first.txt".to_string()],
13656                "Single item was not moved anywhere"
13657            );
13658        });
13659
13660        let item_2 = cx.new(|cx| {
13661            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
13662        });
13663        workspace.update_in(cx, |workspace, window, cx| {
13664            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
13665            assert_eq!(
13666                pane_items_paths(&workspace.panes[0], cx),
13667                vec!["first.txt".to_string(), "second.txt".to_string()],
13668            );
13669            workspace.move_item_to_pane_in_direction(
13670                &MoveItemToPaneInDirection {
13671                    direction: SplitDirection::Right,
13672                    focus: true,
13673                    clone: false,
13674                },
13675                window,
13676                cx,
13677            );
13678
13679            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
13680            assert_eq!(
13681                pane_items_paths(&workspace.panes[0], cx),
13682                vec!["first.txt".to_string()],
13683                "After moving, one item should be left in the original pane"
13684            );
13685            assert_eq!(
13686                pane_items_paths(&workspace.panes[1], cx),
13687                vec!["second.txt".to_string()],
13688                "New item should have been moved to the new pane"
13689            );
13690        });
13691
13692        let item_3 = cx.new(|cx| {
13693            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
13694        });
13695        workspace.update_in(cx, |workspace, window, cx| {
13696            let original_pane = workspace.panes[0].clone();
13697            workspace.set_active_pane(&original_pane, window, cx);
13698            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
13699            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
13700            assert_eq!(
13701                pane_items_paths(&workspace.active_pane, cx),
13702                vec!["first.txt".to_string(), "third.txt".to_string()],
13703                "New pane should be ready to move one item out"
13704            );
13705
13706            workspace.move_item_to_pane_at_index(
13707                &MoveItemToPane {
13708                    destination: 3,
13709                    focus: true,
13710                    clone: false,
13711                },
13712                window,
13713                cx,
13714            );
13715            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
13716            assert_eq!(
13717                pane_items_paths(&workspace.active_pane, cx),
13718                vec!["first.txt".to_string()],
13719                "After moving, one item should be left in the original pane"
13720            );
13721            assert_eq!(
13722                pane_items_paths(&workspace.panes[1], cx),
13723                vec!["second.txt".to_string()],
13724                "Previously created pane should be unchanged"
13725            );
13726            assert_eq!(
13727                pane_items_paths(&workspace.panes[2], cx),
13728                vec!["third.txt".to_string()],
13729                "New item should have been moved to the new pane"
13730            );
13731        });
13732    }
13733
13734    #[gpui::test]
13735    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
13736        init_test(cx);
13737
13738        let fs = FakeFs::new(cx.executor());
13739        let project = Project::test(fs, [], cx).await;
13740        let (workspace, cx) =
13741            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13742
13743        let item_1 = cx.new(|cx| {
13744            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13745        });
13746        workspace.update_in(cx, |workspace, window, cx| {
13747            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13748            workspace.move_item_to_pane_in_direction(
13749                &MoveItemToPaneInDirection {
13750                    direction: SplitDirection::Right,
13751                    focus: true,
13752                    clone: true,
13753                },
13754                window,
13755                cx,
13756            );
13757        });
13758        cx.run_until_parked();
13759        workspace.update_in(cx, |workspace, window, cx| {
13760            workspace.move_item_to_pane_at_index(
13761                &MoveItemToPane {
13762                    destination: 3,
13763                    focus: true,
13764                    clone: true,
13765                },
13766                window,
13767                cx,
13768            );
13769        });
13770        cx.run_until_parked();
13771
13772        workspace.update(cx, |workspace, cx| {
13773            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
13774            for pane in workspace.panes() {
13775                assert_eq!(
13776                    pane_items_paths(pane, cx),
13777                    vec!["first.txt".to_string()],
13778                    "Single item exists in all panes"
13779                );
13780            }
13781        });
13782
13783        // verify that the active pane has been updated after waiting for the
13784        // pane focus event to fire and resolve
13785        workspace.read_with(cx, |workspace, _app| {
13786            assert_eq!(
13787                workspace.active_pane(),
13788                &workspace.panes[2],
13789                "The third pane should be the active one: {:?}",
13790                workspace.panes
13791            );
13792        })
13793    }
13794
13795    #[gpui::test]
13796    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
13797        init_test(cx);
13798
13799        let fs = FakeFs::new(cx.executor());
13800        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
13801
13802        let project = Project::test(fs, ["root".as_ref()], cx).await;
13803        let (workspace, cx) =
13804            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13805
13806        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13807        // Add item to pane A with project path
13808        let item_a = cx.new(|cx| {
13809            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13810        });
13811        workspace.update_in(cx, |workspace, window, cx| {
13812            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
13813        });
13814
13815        // Split to create pane B
13816        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
13817            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
13818        });
13819
13820        // Add item with SAME project path to pane B, and pin it
13821        let item_b = cx.new(|cx| {
13822            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13823        });
13824        pane_b.update_in(cx, |pane, window, cx| {
13825            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13826            pane.set_pinned_count(1);
13827        });
13828
13829        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
13830        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
13831
13832        // close_pinned: false should only close the unpinned copy
13833        workspace.update_in(cx, |workspace, window, cx| {
13834            workspace.close_item_in_all_panes(
13835                &CloseItemInAllPanes {
13836                    save_intent: Some(SaveIntent::Close),
13837                    close_pinned: false,
13838                },
13839                window,
13840                cx,
13841            )
13842        });
13843        cx.executor().run_until_parked();
13844
13845        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
13846        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13847        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
13848        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
13849
13850        // Split again, seeing as closing the previous item also closed its
13851        // pane, so only pane remains, which does not allow us to properly test
13852        // that both items close when `close_pinned: true`.
13853        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
13854            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
13855        });
13856
13857        // Add an item with the same project path to pane C so that
13858        // close_item_in_all_panes can determine what to close across all panes
13859        // (it reads the active item from the active pane, and split_pane
13860        // creates an empty pane).
13861        let item_c = cx.new(|cx| {
13862            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13863        });
13864        pane_c.update_in(cx, |pane, window, cx| {
13865            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
13866        });
13867
13868        // close_pinned: true should close the pinned copy too
13869        workspace.update_in(cx, |workspace, window, cx| {
13870            let panes_count = workspace.panes().len();
13871            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
13872
13873            workspace.close_item_in_all_panes(
13874                &CloseItemInAllPanes {
13875                    save_intent: Some(SaveIntent::Close),
13876                    close_pinned: true,
13877                },
13878                window,
13879                cx,
13880            )
13881        });
13882        cx.executor().run_until_parked();
13883
13884        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13885        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
13886        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
13887        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
13888    }
13889
13890    mod register_project_item_tests {
13891
13892        use super::*;
13893
13894        // View
13895        struct TestPngItemView {
13896            focus_handle: FocusHandle,
13897        }
13898        // Model
13899        struct TestPngItem {}
13900
13901        impl project::ProjectItem for TestPngItem {
13902            fn try_open(
13903                _project: &Entity<Project>,
13904                path: &ProjectPath,
13905                cx: &mut App,
13906            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13907                if path.path.extension().unwrap() == "png" {
13908                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
13909                } else {
13910                    None
13911                }
13912            }
13913
13914            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13915                None
13916            }
13917
13918            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13919                None
13920            }
13921
13922            fn is_dirty(&self) -> bool {
13923                false
13924            }
13925        }
13926
13927        impl Item for TestPngItemView {
13928            type Event = ();
13929            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13930                "".into()
13931            }
13932        }
13933        impl EventEmitter<()> for TestPngItemView {}
13934        impl Focusable for TestPngItemView {
13935            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13936                self.focus_handle.clone()
13937            }
13938        }
13939
13940        impl Render for TestPngItemView {
13941            fn render(
13942                &mut self,
13943                _window: &mut Window,
13944                _cx: &mut Context<Self>,
13945            ) -> impl IntoElement {
13946                Empty
13947            }
13948        }
13949
13950        impl ProjectItem for TestPngItemView {
13951            type Item = TestPngItem;
13952
13953            fn for_project_item(
13954                _project: Entity<Project>,
13955                _pane: Option<&Pane>,
13956                _item: Entity<Self::Item>,
13957                _: &mut Window,
13958                cx: &mut Context<Self>,
13959            ) -> Self
13960            where
13961                Self: Sized,
13962            {
13963                Self {
13964                    focus_handle: cx.focus_handle(),
13965                }
13966            }
13967        }
13968
13969        // View
13970        struct TestIpynbItemView {
13971            focus_handle: FocusHandle,
13972        }
13973        // Model
13974        struct TestIpynbItem {}
13975
13976        impl project::ProjectItem for TestIpynbItem {
13977            fn try_open(
13978                _project: &Entity<Project>,
13979                path: &ProjectPath,
13980                cx: &mut App,
13981            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13982                if path.path.extension().unwrap() == "ipynb" {
13983                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
13984                } else {
13985                    None
13986                }
13987            }
13988
13989            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13990                None
13991            }
13992
13993            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13994                None
13995            }
13996
13997            fn is_dirty(&self) -> bool {
13998                false
13999            }
14000        }
14001
14002        impl Item for TestIpynbItemView {
14003            type Event = ();
14004            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14005                "".into()
14006            }
14007        }
14008        impl EventEmitter<()> for TestIpynbItemView {}
14009        impl Focusable for TestIpynbItemView {
14010            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14011                self.focus_handle.clone()
14012            }
14013        }
14014
14015        impl Render for TestIpynbItemView {
14016            fn render(
14017                &mut self,
14018                _window: &mut Window,
14019                _cx: &mut Context<Self>,
14020            ) -> impl IntoElement {
14021                Empty
14022            }
14023        }
14024
14025        impl ProjectItem for TestIpynbItemView {
14026            type Item = TestIpynbItem;
14027
14028            fn for_project_item(
14029                _project: Entity<Project>,
14030                _pane: Option<&Pane>,
14031                _item: Entity<Self::Item>,
14032                _: &mut Window,
14033                cx: &mut Context<Self>,
14034            ) -> Self
14035            where
14036                Self: Sized,
14037            {
14038                Self {
14039                    focus_handle: cx.focus_handle(),
14040                }
14041            }
14042        }
14043
14044        struct TestAlternatePngItemView {
14045            focus_handle: FocusHandle,
14046        }
14047
14048        impl Item for TestAlternatePngItemView {
14049            type Event = ();
14050            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14051                "".into()
14052            }
14053        }
14054
14055        impl EventEmitter<()> for TestAlternatePngItemView {}
14056        impl Focusable for TestAlternatePngItemView {
14057            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14058                self.focus_handle.clone()
14059            }
14060        }
14061
14062        impl Render for TestAlternatePngItemView {
14063            fn render(
14064                &mut self,
14065                _window: &mut Window,
14066                _cx: &mut Context<Self>,
14067            ) -> impl IntoElement {
14068                Empty
14069            }
14070        }
14071
14072        impl ProjectItem for TestAlternatePngItemView {
14073            type Item = TestPngItem;
14074
14075            fn for_project_item(
14076                _project: Entity<Project>,
14077                _pane: Option<&Pane>,
14078                _item: Entity<Self::Item>,
14079                _: &mut Window,
14080                cx: &mut Context<Self>,
14081            ) -> Self
14082            where
14083                Self: Sized,
14084            {
14085                Self {
14086                    focus_handle: cx.focus_handle(),
14087                }
14088            }
14089        }
14090
14091        #[gpui::test]
14092        async fn test_register_project_item(cx: &mut TestAppContext) {
14093            init_test(cx);
14094
14095            cx.update(|cx| {
14096                register_project_item::<TestPngItemView>(cx);
14097                register_project_item::<TestIpynbItemView>(cx);
14098            });
14099
14100            let fs = FakeFs::new(cx.executor());
14101            fs.insert_tree(
14102                "/root1",
14103                json!({
14104                    "one.png": "BINARYDATAHERE",
14105                    "two.ipynb": "{ totally a notebook }",
14106                    "three.txt": "editing text, sure why not?"
14107                }),
14108            )
14109            .await;
14110
14111            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14112            let (workspace, cx) =
14113                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14114
14115            let worktree_id = project.update(cx, |project, cx| {
14116                project.worktrees(cx).next().unwrap().read(cx).id()
14117            });
14118
14119            let handle = workspace
14120                .update_in(cx, |workspace, window, cx| {
14121                    let project_path = (worktree_id, rel_path("one.png"));
14122                    workspace.open_path(project_path, None, true, window, cx)
14123                })
14124                .await
14125                .unwrap();
14126
14127            // Now we can check if the handle we got back errored or not
14128            assert_eq!(
14129                handle.to_any_view().entity_type(),
14130                TypeId::of::<TestPngItemView>()
14131            );
14132
14133            let handle = workspace
14134                .update_in(cx, |workspace, window, cx| {
14135                    let project_path = (worktree_id, rel_path("two.ipynb"));
14136                    workspace.open_path(project_path, None, true, window, cx)
14137                })
14138                .await
14139                .unwrap();
14140
14141            assert_eq!(
14142                handle.to_any_view().entity_type(),
14143                TypeId::of::<TestIpynbItemView>()
14144            );
14145
14146            let handle = workspace
14147                .update_in(cx, |workspace, window, cx| {
14148                    let project_path = (worktree_id, rel_path("three.txt"));
14149                    workspace.open_path(project_path, None, true, window, cx)
14150                })
14151                .await;
14152            assert!(handle.is_err());
14153        }
14154
14155        #[gpui::test]
14156        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14157            init_test(cx);
14158
14159            cx.update(|cx| {
14160                register_project_item::<TestPngItemView>(cx);
14161                register_project_item::<TestAlternatePngItemView>(cx);
14162            });
14163
14164            let fs = FakeFs::new(cx.executor());
14165            fs.insert_tree(
14166                "/root1",
14167                json!({
14168                    "one.png": "BINARYDATAHERE",
14169                    "two.ipynb": "{ totally a notebook }",
14170                    "three.txt": "editing text, sure why not?"
14171                }),
14172            )
14173            .await;
14174            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14175            let (workspace, cx) =
14176                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14177            let worktree_id = project.update(cx, |project, cx| {
14178                project.worktrees(cx).next().unwrap().read(cx).id()
14179            });
14180
14181            let handle = workspace
14182                .update_in(cx, |workspace, window, cx| {
14183                    let project_path = (worktree_id, rel_path("one.png"));
14184                    workspace.open_path(project_path, None, true, window, cx)
14185                })
14186                .await
14187                .unwrap();
14188
14189            // This _must_ be the second item registered
14190            assert_eq!(
14191                handle.to_any_view().entity_type(),
14192                TypeId::of::<TestAlternatePngItemView>()
14193            );
14194
14195            let handle = workspace
14196                .update_in(cx, |workspace, window, cx| {
14197                    let project_path = (worktree_id, rel_path("three.txt"));
14198                    workspace.open_path(project_path, None, true, window, cx)
14199                })
14200                .await;
14201            assert!(handle.is_err());
14202        }
14203    }
14204
14205    #[gpui::test]
14206    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14207        init_test(cx);
14208
14209        let fs = FakeFs::new(cx.executor());
14210        let project = Project::test(fs, [], cx).await;
14211        let (workspace, _cx) =
14212            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14213
14214        // Test with status bar shown (default)
14215        workspace.read_with(cx, |workspace, cx| {
14216            let visible = workspace.status_bar_visible(cx);
14217            assert!(visible, "Status bar should be visible by default");
14218        });
14219
14220        // Test with status bar hidden
14221        cx.update_global(|store: &mut SettingsStore, cx| {
14222            store.update_user_settings(cx, |settings| {
14223                settings.status_bar.get_or_insert_default().show = Some(false);
14224            });
14225        });
14226
14227        workspace.read_with(cx, |workspace, cx| {
14228            let visible = workspace.status_bar_visible(cx);
14229            assert!(!visible, "Status bar should be hidden when show is false");
14230        });
14231
14232        // Test with status bar shown explicitly
14233        cx.update_global(|store: &mut SettingsStore, cx| {
14234            store.update_user_settings(cx, |settings| {
14235                settings.status_bar.get_or_insert_default().show = Some(true);
14236            });
14237        });
14238
14239        workspace.read_with(cx, |workspace, cx| {
14240            let visible = workspace.status_bar_visible(cx);
14241            assert!(visible, "Status bar should be visible when show is true");
14242        });
14243    }
14244
14245    #[gpui::test]
14246    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14247        init_test(cx);
14248
14249        let fs = FakeFs::new(cx.executor());
14250        let project = Project::test(fs, [], cx).await;
14251        let (multi_workspace, cx) =
14252            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14253        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14254        let panel = workspace.update_in(cx, |workspace, window, cx| {
14255            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14256            workspace.add_panel(panel.clone(), window, cx);
14257
14258            workspace
14259                .right_dock()
14260                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14261
14262            panel
14263        });
14264
14265        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14266        let item_a = cx.new(TestItem::new);
14267        let item_b = cx.new(TestItem::new);
14268        let item_a_id = item_a.entity_id();
14269        let item_b_id = item_b.entity_id();
14270
14271        pane.update_in(cx, |pane, window, cx| {
14272            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14273            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14274        });
14275
14276        pane.read_with(cx, |pane, _| {
14277            assert_eq!(pane.items_len(), 2);
14278            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14279        });
14280
14281        workspace.update_in(cx, |workspace, window, cx| {
14282            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14283        });
14284
14285        workspace.update_in(cx, |_, window, cx| {
14286            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14287        });
14288
14289        // Assert that the `pane::CloseActiveItem` action is handled at the
14290        // workspace level when one of the dock panels is focused and, in that
14291        // case, the center pane's active item is closed but the focus is not
14292        // moved.
14293        cx.dispatch_action(pane::CloseActiveItem::default());
14294        cx.run_until_parked();
14295
14296        pane.read_with(cx, |pane, _| {
14297            assert_eq!(pane.items_len(), 1);
14298            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14299        });
14300
14301        workspace.update_in(cx, |workspace, window, cx| {
14302            assert!(workspace.right_dock().read(cx).is_open());
14303            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14304        });
14305    }
14306
14307    #[gpui::test]
14308    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14309        init_test(cx);
14310        let fs = FakeFs::new(cx.executor());
14311
14312        let project_a = Project::test(fs.clone(), [], cx).await;
14313        let project_b = Project::test(fs, [], cx).await;
14314
14315        let multi_workspace_handle =
14316            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14317        cx.run_until_parked();
14318
14319        let workspace_a = multi_workspace_handle
14320            .read_with(cx, |mw, _| mw.workspace().clone())
14321            .unwrap();
14322
14323        let _workspace_b = multi_workspace_handle
14324            .update(cx, |mw, window, cx| {
14325                mw.test_add_workspace(project_b, window, cx)
14326            })
14327            .unwrap();
14328
14329        // Switch to workspace A
14330        multi_workspace_handle
14331            .update(cx, |mw, window, cx| {
14332                mw.activate_index(0, window, cx);
14333            })
14334            .unwrap();
14335
14336        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14337
14338        // Add a panel to workspace A's right dock and open the dock
14339        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14340            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14341            workspace.add_panel(panel.clone(), window, cx);
14342            workspace
14343                .right_dock()
14344                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14345            panel
14346        });
14347
14348        // Focus the panel through the workspace (matching existing test pattern)
14349        workspace_a.update_in(cx, |workspace, window, cx| {
14350            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14351        });
14352
14353        // Zoom the panel
14354        panel.update_in(cx, |panel, window, cx| {
14355            panel.set_zoomed(true, window, cx);
14356        });
14357
14358        // Verify the panel is zoomed and the dock is open
14359        workspace_a.update_in(cx, |workspace, window, cx| {
14360            assert!(
14361                workspace.right_dock().read(cx).is_open(),
14362                "dock should be open before switch"
14363            );
14364            assert!(
14365                panel.is_zoomed(window, cx),
14366                "panel should be zoomed before switch"
14367            );
14368            assert!(
14369                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14370                "panel should be focused before switch"
14371            );
14372        });
14373
14374        // Switch to workspace B
14375        multi_workspace_handle
14376            .update(cx, |mw, window, cx| {
14377                mw.activate_index(1, window, cx);
14378            })
14379            .unwrap();
14380        cx.run_until_parked();
14381
14382        // Switch back to workspace A
14383        multi_workspace_handle
14384            .update(cx, |mw, window, cx| {
14385                mw.activate_index(0, window, cx);
14386            })
14387            .unwrap();
14388        cx.run_until_parked();
14389
14390        // Verify the panel is still zoomed and the dock is still open
14391        workspace_a.update_in(cx, |workspace, window, cx| {
14392            assert!(
14393                workspace.right_dock().read(cx).is_open(),
14394                "dock should still be open after switching back"
14395            );
14396            assert!(
14397                panel.is_zoomed(window, cx),
14398                "panel should still be zoomed after switching back"
14399            );
14400        });
14401    }
14402
14403    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14404        pane.read(cx)
14405            .items()
14406            .flat_map(|item| {
14407                item.project_paths(cx)
14408                    .into_iter()
14409                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14410            })
14411            .collect()
14412    }
14413
14414    pub fn init_test(cx: &mut TestAppContext) {
14415        cx.update(|cx| {
14416            let settings_store = SettingsStore::test(cx);
14417            cx.set_global(settings_store);
14418            cx.set_global(db::AppDatabase::test_new());
14419            theme_settings::init(theme::LoadThemes::JustBase, cx);
14420        });
14421    }
14422
14423    #[gpui::test]
14424    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14425        use settings::{ThemeName, ThemeSelection};
14426        use theme::SystemAppearance;
14427        use zed_actions::theme::ToggleMode;
14428
14429        init_test(cx);
14430
14431        let fs = FakeFs::new(cx.executor());
14432        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14433
14434        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14435            .await;
14436
14437        // Build a test project and workspace view so the test can invoke
14438        // the workspace action handler the same way the UI would.
14439        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14440        let (workspace, cx) =
14441            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14442
14443        // Seed the settings file with a plain static light theme so the
14444        // first toggle always starts from a known persisted state.
14445        workspace.update_in(cx, |_workspace, _window, cx| {
14446            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14447            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14448                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14449            });
14450        });
14451        cx.executor().advance_clock(Duration::from_millis(200));
14452        cx.run_until_parked();
14453
14454        // Confirm the initial persisted settings contain the static theme
14455        // we just wrote before any toggling happens.
14456        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14457        assert!(settings_text.contains(r#""theme": "One Light""#));
14458
14459        // Toggle once. This should migrate the persisted theme settings
14460        // into light/dark slots and enable system mode.
14461        workspace.update_in(cx, |workspace, window, cx| {
14462            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14463        });
14464        cx.executor().advance_clock(Duration::from_millis(200));
14465        cx.run_until_parked();
14466
14467        // 1. Static -> Dynamic
14468        // this assertion checks theme changed from static to dynamic.
14469        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14470        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14471        assert_eq!(
14472            parsed["theme"],
14473            serde_json::json!({
14474                "mode": "system",
14475                "light": "One Light",
14476                "dark": "One Dark"
14477            })
14478        );
14479
14480        // 2. Toggle again, suppose it will change the mode to light
14481        workspace.update_in(cx, |workspace, window, cx| {
14482            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14483        });
14484        cx.executor().advance_clock(Duration::from_millis(200));
14485        cx.run_until_parked();
14486
14487        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14488        assert!(settings_text.contains(r#""mode": "light""#));
14489    }
14490
14491    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14492        let item = TestProjectItem::new(id, path, cx);
14493        item.update(cx, |item, _| {
14494            item.is_dirty = true;
14495        });
14496        item
14497    }
14498
14499    #[gpui::test]
14500    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14501        cx: &mut gpui::TestAppContext,
14502    ) {
14503        init_test(cx);
14504        let fs = FakeFs::new(cx.executor());
14505
14506        let project = Project::test(fs, [], cx).await;
14507        let (workspace, cx) =
14508            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14509
14510        let panel = workspace.update_in(cx, |workspace, window, cx| {
14511            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14512            workspace.add_panel(panel.clone(), window, cx);
14513            workspace
14514                .right_dock()
14515                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14516            panel
14517        });
14518
14519        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14520        pane.update_in(cx, |pane, window, cx| {
14521            let item = cx.new(TestItem::new);
14522            pane.add_item(Box::new(item), true, true, None, window, cx);
14523        });
14524
14525        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
14526        // mirrors the real-world flow and avoids side effects from directly
14527        // focusing the panel while the center pane is active.
14528        workspace.update_in(cx, |workspace, window, cx| {
14529            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14530        });
14531
14532        panel.update_in(cx, |panel, window, cx| {
14533            panel.set_zoomed(true, window, cx);
14534        });
14535
14536        workspace.update_in(cx, |workspace, window, cx| {
14537            assert!(workspace.right_dock().read(cx).is_open());
14538            assert!(panel.is_zoomed(window, cx));
14539            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14540        });
14541
14542        // Simulate a spurious pane::Event::Focus on the center pane while the
14543        // panel still has focus. This mirrors what happens during macOS window
14544        // activation: the center pane fires a focus event even though actual
14545        // focus remains on the dock panel.
14546        pane.update_in(cx, |_, _, cx| {
14547            cx.emit(pane::Event::Focus);
14548        });
14549
14550        // The dock must remain open because the panel had focus at the time the
14551        // event was processed. Before the fix, dock_to_preserve was None for
14552        // panels that don't implement pane(), causing the dock to close.
14553        workspace.update_in(cx, |workspace, window, cx| {
14554            assert!(
14555                workspace.right_dock().read(cx).is_open(),
14556                "Dock should stay open when its zoomed panel (without pane()) still has focus"
14557            );
14558            assert!(panel.is_zoomed(window, cx));
14559        });
14560    }
14561
14562    #[gpui::test]
14563    async fn test_panels_stay_open_after_position_change_and_settings_update(
14564        cx: &mut gpui::TestAppContext,
14565    ) {
14566        init_test(cx);
14567        let fs = FakeFs::new(cx.executor());
14568        let project = Project::test(fs, [], cx).await;
14569        let (workspace, cx) =
14570            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14571
14572        // Add two panels to the left dock and open it.
14573        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
14574            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
14575            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
14576            workspace.add_panel(panel_a.clone(), window, cx);
14577            workspace.add_panel(panel_b.clone(), window, cx);
14578            workspace.left_dock().update(cx, |dock, cx| {
14579                dock.set_open(true, window, cx);
14580                dock.activate_panel(0, window, cx);
14581            });
14582            (panel_a, panel_b)
14583        });
14584
14585        workspace.update_in(cx, |workspace, _, cx| {
14586            assert!(workspace.left_dock().read(cx).is_open());
14587        });
14588
14589        // Simulate a feature flag changing default dock positions: both panels
14590        // move from Left to Right.
14591        workspace.update_in(cx, |_workspace, _window, cx| {
14592            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
14593            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
14594            cx.update_global::<SettingsStore, _>(|_, _| {});
14595        });
14596
14597        // Both panels should now be in the right dock.
14598        workspace.update_in(cx, |workspace, _, cx| {
14599            let right_dock = workspace.right_dock().read(cx);
14600            assert_eq!(right_dock.panels_len(), 2);
14601        });
14602
14603        // Open the right dock and activate panel_b (simulating the user
14604        // opening the panel after it moved).
14605        workspace.update_in(cx, |workspace, window, cx| {
14606            workspace.right_dock().update(cx, |dock, cx| {
14607                dock.set_open(true, window, cx);
14608                dock.activate_panel(1, window, cx);
14609            });
14610        });
14611
14612        // Now trigger another SettingsStore change
14613        workspace.update_in(cx, |_workspace, _window, cx| {
14614            cx.update_global::<SettingsStore, _>(|_, _| {});
14615        });
14616
14617        workspace.update_in(cx, |workspace, _, cx| {
14618            assert!(
14619                workspace.right_dock().read(cx).is_open(),
14620                "Right dock should still be open after a settings change"
14621            );
14622            assert_eq!(
14623                workspace.right_dock().read(cx).panels_len(),
14624                2,
14625                "Both panels should still be in the right dock"
14626            );
14627        });
14628    }
14629}