workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6mod multi_workspace;
    7pub mod notifications;
    8pub mod pane;
    9pub mod pane_group;
   10pub mod path_list {
   11    pub use util::path_list::{PathList, SerializedPathList};
   12}
   13mod persistence;
   14pub mod searchable;
   15mod security_modal;
   16pub mod shared_screen;
   17use db::smol::future::yield_now;
   18pub use shared_screen::SharedScreen;
   19mod status_bar;
   20pub mod tasks;
   21mod theme_preview;
   22mod toast_layer;
   23mod toolbar;
   24pub mod welcome;
   25mod workspace_settings;
   26
   27pub use crate::notifications::NotificationFrame;
   28pub use dock::Panel;
   29pub use multi_workspace::{
   30    DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace, MultiWorkspaceEvent, Sidebar,
   31    SidebarHandle, ToggleWorkspaceSidebar,
   32};
   33pub use path_list::{PathList, SerializedPathList};
   34pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   35
   36use anyhow::{Context as _, Result, anyhow};
   37use client::{
   38    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   39    proto::{self, ErrorCode, PanelId, PeerId},
   40};
   41use collections::{HashMap, HashSet, hash_map};
   42use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   43use fs::Fs;
   44use futures::{
   45    Future, FutureExt, StreamExt,
   46    channel::{
   47        mpsc::{self, UnboundedReceiver, UnboundedSender},
   48        oneshot,
   49    },
   50    future::{Shared, try_join_all},
   51};
   52use gpui::{
   53    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   54    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   55    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   56    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   57    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   58    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   59};
   60pub use history_manager::*;
   61pub use item::{
   62    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   63    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   64};
   65use itertools::Itertools;
   66use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   67pub use modal_layer::*;
   68use node_runtime::NodeRuntime;
   69use notifications::{
   70    DetachAndPromptErr, Notifications, dismiss_app_notification,
   71    simple_message_notification::MessageNotification,
   72};
   73pub use pane::*;
   74pub use pane_group::{
   75    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   76    SplitDirection,
   77};
   78use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   79pub use persistence::{
   80    WorkspaceDb, delete_unloaded_items,
   81    model::{
   82        DockStructure, ItemId, SerializedMultiWorkspace, SerializedWorkspaceLocation,
   83        SessionWorkspace,
   84    },
   85    read_serialized_multi_workspaces,
   86};
   87use postage::stream::Stream;
   88use project::{
   89    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   90    WorktreeSettings,
   91    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   92    project_settings::ProjectSettings,
   93    toolchain_store::ToolchainStoreEvent,
   94    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   95};
   96use remote::{
   97    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   98    remote_client::ConnectionIdentifier,
   99};
  100use schemars::JsonSchema;
  101use serde::Deserialize;
  102use session::AppSession;
  103use settings::{
  104    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  105};
  106
  107use sqlez::{
  108    bindable::{Bind, Column, StaticColumnCount},
  109    statement::Statement,
  110};
  111use status_bar::StatusBar;
  112pub use status_bar::StatusItemView;
  113use std::{
  114    any::TypeId,
  115    borrow::Cow,
  116    cell::RefCell,
  117    cmp,
  118    collections::VecDeque,
  119    env,
  120    hash::Hash,
  121    path::{Path, PathBuf},
  122    process::ExitStatus,
  123    rc::Rc,
  124    sync::{
  125        Arc, LazyLock, Weak,
  126        atomic::{AtomicBool, AtomicUsize},
  127    },
  128    time::Duration,
  129};
  130use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  131use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  132pub use toolbar::{
  133    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  134};
  135pub use ui;
  136use ui::{Window, prelude::*};
  137use util::{
  138    ResultExt, TryFutureExt,
  139    paths::{PathStyle, SanitizedPath},
  140    rel_path::RelPath,
  141    serde::default_true,
  142};
  143use uuid::Uuid;
  144pub use workspace_settings::{
  145    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  146    WorkspaceSettings,
  147};
  148use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  149
  150use crate::{item::ItemBufferKind, notifications::NotificationId};
  151use crate::{
  152    persistence::{
  153        SerializedAxis,
  154        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  155    },
  156    security_modal::SecurityModal,
  157};
  158
  159pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  160
  161static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  162    env::var("ZED_WINDOW_SIZE")
  163        .ok()
  164        .as_deref()
  165        .and_then(parse_pixel_size_env_var)
  166});
  167
  168static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  169    env::var("ZED_WINDOW_POSITION")
  170        .ok()
  171        .as_deref()
  172        .and_then(parse_pixel_position_env_var)
  173});
  174
  175pub trait TerminalProvider {
  176    fn spawn(
  177        &self,
  178        task: SpawnInTerminal,
  179        window: &mut Window,
  180        cx: &mut App,
  181    ) -> Task<Option<Result<ExitStatus>>>;
  182}
  183
  184pub trait DebuggerProvider {
  185    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  186    fn start_session(
  187        &self,
  188        definition: DebugScenario,
  189        task_context: SharedTaskContext,
  190        active_buffer: Option<Entity<Buffer>>,
  191        worktree_id: Option<WorktreeId>,
  192        window: &mut Window,
  193        cx: &mut App,
  194    );
  195
  196    fn spawn_task_or_modal(
  197        &self,
  198        workspace: &mut Workspace,
  199        action: &Spawn,
  200        window: &mut Window,
  201        cx: &mut Context<Workspace>,
  202    );
  203
  204    fn task_scheduled(&self, cx: &mut App);
  205    fn debug_scenario_scheduled(&self, cx: &mut App);
  206    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  207
  208    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  209}
  210
  211/// Opens a file or directory.
  212#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  213#[action(namespace = workspace)]
  214pub struct Open {
  215    /// When true, opens in a new window. When false, adds to the current
  216    /// window as a new workspace (multi-workspace).
  217    #[serde(default = "Open::default_create_new_window")]
  218    pub create_new_window: bool,
  219}
  220
  221impl Open {
  222    pub const DEFAULT: Self = Self {
  223        create_new_window: true,
  224    };
  225
  226    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  227    /// the serde default and `Open::DEFAULT` stay in sync.
  228    fn default_create_new_window() -> bool {
  229        Self::DEFAULT.create_new_window
  230    }
  231}
  232
  233impl Default for Open {
  234    fn default() -> Self {
  235        Self::DEFAULT
  236    }
  237}
  238
  239actions!(
  240    workspace,
  241    [
  242        /// Activates the next pane in the workspace.
  243        ActivateNextPane,
  244        /// Activates the previous pane in the workspace.
  245        ActivatePreviousPane,
  246        /// Activates the last pane in the workspace.
  247        ActivateLastPane,
  248        /// Switches to the next window.
  249        ActivateNextWindow,
  250        /// Switches to the previous window.
  251        ActivatePreviousWindow,
  252        /// Adds a folder to the current project.
  253        AddFolderToProject,
  254        /// Clears all notifications.
  255        ClearAllNotifications,
  256        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  257        ClearNavigationHistory,
  258        /// Closes the active dock.
  259        CloseActiveDock,
  260        /// Closes all docks.
  261        CloseAllDocks,
  262        /// Toggles all docks.
  263        ToggleAllDocks,
  264        /// Closes the current window.
  265        CloseWindow,
  266        /// Closes the current project.
  267        CloseProject,
  268        /// Opens the feedback dialog.
  269        Feedback,
  270        /// Follows the next collaborator in the session.
  271        FollowNextCollaborator,
  272        /// Moves the focused panel to the next position.
  273        MoveFocusedPanelToNextPosition,
  274        /// Creates a new file.
  275        NewFile,
  276        /// Creates a new file in a vertical split.
  277        NewFileSplitVertical,
  278        /// Creates a new file in a horizontal split.
  279        NewFileSplitHorizontal,
  280        /// Opens a new search.
  281        NewSearch,
  282        /// Opens a new window.
  283        NewWindow,
  284        /// Opens multiple files.
  285        OpenFiles,
  286        /// Opens the current location in terminal.
  287        OpenInTerminal,
  288        /// Opens the component preview.
  289        OpenComponentPreview,
  290        /// Reloads the active item.
  291        ReloadActiveItem,
  292        /// Resets the active dock to its default size.
  293        ResetActiveDockSize,
  294        /// Resets all open docks to their default sizes.
  295        ResetOpenDocksSize,
  296        /// Reloads the application
  297        Reload,
  298        /// Saves the current file with a new name.
  299        SaveAs,
  300        /// Saves without formatting.
  301        SaveWithoutFormat,
  302        /// Shuts down all debug adapters.
  303        ShutdownDebugAdapters,
  304        /// Suppresses the current notification.
  305        SuppressNotification,
  306        /// Toggles the bottom dock.
  307        ToggleBottomDock,
  308        /// Toggles centered layout mode.
  309        ToggleCenteredLayout,
  310        /// Toggles edit prediction feature globally for all files.
  311        ToggleEditPrediction,
  312        /// Toggles the left dock.
  313        ToggleLeftDock,
  314        /// Toggles the right dock.
  315        ToggleRightDock,
  316        /// Toggles zoom on the active pane.
  317        ToggleZoom,
  318        /// Toggles read-only mode for the active item (if supported by that item).
  319        ToggleReadOnlyFile,
  320        /// Zooms in on the active pane.
  321        ZoomIn,
  322        /// Zooms out of the active pane.
  323        ZoomOut,
  324        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  325        /// If the modal is shown already, closes it without trusting any worktree.
  326        ToggleWorktreeSecurity,
  327        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  328        /// Requires restart to take effect on already opened projects.
  329        ClearTrustedWorktrees,
  330        /// Stops following a collaborator.
  331        Unfollow,
  332        /// Restores the banner.
  333        RestoreBanner,
  334        /// Toggles expansion of the selected item.
  335        ToggleExpandItem,
  336    ]
  337);
  338
  339/// Activates a specific pane by its index.
  340#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  341#[action(namespace = workspace)]
  342pub struct ActivatePane(pub usize);
  343
  344/// Moves an item to a specific pane by index.
  345#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  346#[action(namespace = workspace)]
  347#[serde(deny_unknown_fields)]
  348pub struct MoveItemToPane {
  349    #[serde(default = "default_1")]
  350    pub destination: usize,
  351    #[serde(default = "default_true")]
  352    pub focus: bool,
  353    #[serde(default)]
  354    pub clone: bool,
  355}
  356
  357fn default_1() -> usize {
  358    1
  359}
  360
  361/// Moves an item to a pane in the specified direction.
  362#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  363#[action(namespace = workspace)]
  364#[serde(deny_unknown_fields)]
  365pub struct MoveItemToPaneInDirection {
  366    #[serde(default = "default_right")]
  367    pub direction: SplitDirection,
  368    #[serde(default = "default_true")]
  369    pub focus: bool,
  370    #[serde(default)]
  371    pub clone: bool,
  372}
  373
  374/// Creates a new file in a split of the desired direction.
  375#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  376#[action(namespace = workspace)]
  377#[serde(deny_unknown_fields)]
  378pub struct NewFileSplit(pub SplitDirection);
  379
  380fn default_right() -> SplitDirection {
  381    SplitDirection::Right
  382}
  383
  384/// Saves all open files in the workspace.
  385#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  386#[action(namespace = workspace)]
  387#[serde(deny_unknown_fields)]
  388pub struct SaveAll {
  389    #[serde(default)]
  390    pub save_intent: Option<SaveIntent>,
  391}
  392
  393/// Saves the current file with the specified options.
  394#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  395#[action(namespace = workspace)]
  396#[serde(deny_unknown_fields)]
  397pub struct Save {
  398    #[serde(default)]
  399    pub save_intent: Option<SaveIntent>,
  400}
  401
  402/// Moves Focus to the central panes in the workspace.
  403#[derive(Clone, Debug, PartialEq, Eq, Action)]
  404#[action(namespace = workspace)]
  405pub struct FocusCenterPane;
  406
  407///  Closes all items and panes in the workspace.
  408#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  409#[action(namespace = workspace)]
  410#[serde(deny_unknown_fields)]
  411pub struct CloseAllItemsAndPanes {
  412    #[serde(default)]
  413    pub save_intent: Option<SaveIntent>,
  414}
  415
  416/// Closes all inactive tabs and panes in the workspace.
  417#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  418#[action(namespace = workspace)]
  419#[serde(deny_unknown_fields)]
  420pub struct CloseInactiveTabsAndPanes {
  421    #[serde(default)]
  422    pub save_intent: Option<SaveIntent>,
  423}
  424
  425/// Closes the active item across all panes.
  426#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  427#[action(namespace = workspace)]
  428#[serde(deny_unknown_fields)]
  429pub struct CloseItemInAllPanes {
  430    #[serde(default)]
  431    pub save_intent: Option<SaveIntent>,
  432    #[serde(default)]
  433    pub close_pinned: bool,
  434}
  435
  436/// Sends a sequence of keystrokes to the active element.
  437#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  438#[action(namespace = workspace)]
  439pub struct SendKeystrokes(pub String);
  440
  441actions!(
  442    project_symbols,
  443    [
  444        /// Toggles the project symbols search.
  445        #[action(name = "Toggle")]
  446        ToggleProjectSymbols
  447    ]
  448);
  449
  450/// Toggles the file finder interface.
  451#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  452#[action(namespace = file_finder, name = "Toggle")]
  453#[serde(deny_unknown_fields)]
  454pub struct ToggleFileFinder {
  455    #[serde(default)]
  456    pub separate_history: bool,
  457}
  458
  459/// Opens a new terminal in the center.
  460#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  461#[action(namespace = workspace)]
  462#[serde(deny_unknown_fields)]
  463pub struct NewCenterTerminal {
  464    /// If true, creates a local terminal even in remote projects.
  465    #[serde(default)]
  466    pub local: bool,
  467}
  468
  469/// Opens a new terminal.
  470#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  471#[action(namespace = workspace)]
  472#[serde(deny_unknown_fields)]
  473pub struct NewTerminal {
  474    /// If true, creates a local terminal even in remote projects.
  475    #[serde(default)]
  476    pub local: bool,
  477}
  478
  479/// Increases size of a currently focused dock by a given amount of pixels.
  480#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  481#[action(namespace = workspace)]
  482#[serde(deny_unknown_fields)]
  483pub struct IncreaseActiveDockSize {
  484    /// For 0px parameter, uses UI font size value.
  485    #[serde(default)]
  486    pub px: u32,
  487}
  488
  489/// Decreases size of a currently focused dock by a given amount of pixels.
  490#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  491#[action(namespace = workspace)]
  492#[serde(deny_unknown_fields)]
  493pub struct DecreaseActiveDockSize {
  494    /// For 0px parameter, uses UI font size value.
  495    #[serde(default)]
  496    pub px: u32,
  497}
  498
  499/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  500#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  501#[action(namespace = workspace)]
  502#[serde(deny_unknown_fields)]
  503pub struct IncreaseOpenDocksSize {
  504    /// For 0px parameter, uses UI font size value.
  505    #[serde(default)]
  506    pub px: u32,
  507}
  508
  509/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  510#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  511#[action(namespace = workspace)]
  512#[serde(deny_unknown_fields)]
  513pub struct DecreaseOpenDocksSize {
  514    /// For 0px parameter, uses UI font size value.
  515    #[serde(default)]
  516    pub px: u32,
  517}
  518
  519actions!(
  520    workspace,
  521    [
  522        /// Activates the pane to the left.
  523        ActivatePaneLeft,
  524        /// Activates the pane to the right.
  525        ActivatePaneRight,
  526        /// Activates the pane above.
  527        ActivatePaneUp,
  528        /// Activates the pane below.
  529        ActivatePaneDown,
  530        /// Swaps the current pane with the one to the left.
  531        SwapPaneLeft,
  532        /// Swaps the current pane with the one to the right.
  533        SwapPaneRight,
  534        /// Swaps the current pane with the one above.
  535        SwapPaneUp,
  536        /// Swaps the current pane with the one below.
  537        SwapPaneDown,
  538        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  539        SwapPaneAdjacent,
  540        /// Move the current pane to be at the far left.
  541        MovePaneLeft,
  542        /// Move the current pane to be at the far right.
  543        MovePaneRight,
  544        /// Move the current pane to be at the very top.
  545        MovePaneUp,
  546        /// Move the current pane to be at the very bottom.
  547        MovePaneDown,
  548    ]
  549);
  550
  551#[derive(PartialEq, Eq, Debug)]
  552pub enum CloseIntent {
  553    /// Quit the program entirely.
  554    Quit,
  555    /// Close a window.
  556    CloseWindow,
  557    /// Replace the workspace in an existing window.
  558    ReplaceWindow,
  559}
  560
  561#[derive(Clone)]
  562pub struct Toast {
  563    id: NotificationId,
  564    msg: Cow<'static, str>,
  565    autohide: bool,
  566    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  567}
  568
  569impl Toast {
  570    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  571        Toast {
  572            id,
  573            msg: msg.into(),
  574            on_click: None,
  575            autohide: false,
  576        }
  577    }
  578
  579    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  580    where
  581        M: Into<Cow<'static, str>>,
  582        F: Fn(&mut Window, &mut App) + 'static,
  583    {
  584        self.on_click = Some((message.into(), Arc::new(on_click)));
  585        self
  586    }
  587
  588    pub fn autohide(mut self) -> Self {
  589        self.autohide = true;
  590        self
  591    }
  592}
  593
  594impl PartialEq for Toast {
  595    fn eq(&self, other: &Self) -> bool {
  596        self.id == other.id
  597            && self.msg == other.msg
  598            && self.on_click.is_some() == other.on_click.is_some()
  599    }
  600}
  601
  602/// Opens a new terminal with the specified working directory.
  603#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  604#[action(namespace = workspace)]
  605#[serde(deny_unknown_fields)]
  606pub struct OpenTerminal {
  607    pub working_directory: PathBuf,
  608    /// If true, creates a local terminal even in remote projects.
  609    #[serde(default)]
  610    pub local: bool,
  611}
  612
  613#[derive(
  614    Clone,
  615    Copy,
  616    Debug,
  617    Default,
  618    Hash,
  619    PartialEq,
  620    Eq,
  621    PartialOrd,
  622    Ord,
  623    serde::Serialize,
  624    serde::Deserialize,
  625)]
  626pub struct WorkspaceId(i64);
  627
  628impl WorkspaceId {
  629    pub fn from_i64(value: i64) -> Self {
  630        Self(value)
  631    }
  632}
  633
  634impl StaticColumnCount for WorkspaceId {}
  635impl Bind for WorkspaceId {
  636    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  637        self.0.bind(statement, start_index)
  638    }
  639}
  640impl Column for WorkspaceId {
  641    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  642        i64::column(statement, start_index)
  643            .map(|(i, next_index)| (Self(i), next_index))
  644            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  645    }
  646}
  647impl From<WorkspaceId> for i64 {
  648    fn from(val: WorkspaceId) -> Self {
  649        val.0
  650    }
  651}
  652
  653fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  654    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  655        workspace_window
  656            .update(cx, |multi_workspace, window, cx| {
  657                let workspace = multi_workspace.workspace().clone();
  658                workspace.update(cx, |workspace, cx| {
  659                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  660                });
  661            })
  662            .ok();
  663    } else {
  664        let task = Workspace::new_local(Vec::new(), app_state.clone(), None, None, None, true, cx);
  665        cx.spawn(async move |cx| {
  666            let OpenResult { window, .. } = task.await?;
  667            window.update(cx, |multi_workspace, window, cx| {
  668                window.activate_window();
  669                let workspace = multi_workspace.workspace().clone();
  670                workspace.update(cx, |workspace, cx| {
  671                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  672                });
  673            })?;
  674            anyhow::Ok(())
  675        })
  676        .detach_and_log_err(cx);
  677    }
  678}
  679
  680pub fn prompt_for_open_path_and_open(
  681    workspace: &mut Workspace,
  682    app_state: Arc<AppState>,
  683    options: PathPromptOptions,
  684    create_new_window: bool,
  685    window: &mut Window,
  686    cx: &mut Context<Workspace>,
  687) {
  688    let paths = workspace.prompt_for_open_path(
  689        options,
  690        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  691        window,
  692        cx,
  693    );
  694    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  695    cx.spawn_in(window, async move |this, cx| {
  696        let Some(paths) = paths.await.log_err().flatten() else {
  697            return;
  698        };
  699        if !create_new_window {
  700            if let Some(handle) = multi_workspace_handle {
  701                if let Some(task) = handle
  702                    .update(cx, |multi_workspace, window, cx| {
  703                        multi_workspace.open_project(paths, window, cx)
  704                    })
  705                    .log_err()
  706                {
  707                    task.await.log_err();
  708                }
  709                return;
  710            }
  711        }
  712        if let Some(task) = this
  713            .update_in(cx, |this, window, cx| {
  714                this.open_workspace_for_paths(false, paths, window, cx)
  715            })
  716            .log_err()
  717        {
  718            task.await.log_err();
  719        }
  720    })
  721    .detach();
  722}
  723
  724pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  725    component::init();
  726    theme_preview::init(cx);
  727    toast_layer::init(cx);
  728    history_manager::init(app_state.fs.clone(), cx);
  729
  730    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  731        .on_action(|_: &Reload, cx| reload(cx))
  732        .on_action({
  733            let app_state = Arc::downgrade(&app_state);
  734            move |_: &Open, cx: &mut App| {
  735                if let Some(app_state) = app_state.upgrade() {
  736                    prompt_and_open_paths(
  737                        app_state,
  738                        PathPromptOptions {
  739                            files: true,
  740                            directories: true,
  741                            multiple: true,
  742                            prompt: None,
  743                        },
  744                        cx,
  745                    );
  746                }
  747            }
  748        })
  749        .on_action({
  750            let app_state = Arc::downgrade(&app_state);
  751            move |_: &OpenFiles, cx: &mut App| {
  752                let directories = cx.can_select_mixed_files_and_dirs();
  753                if let Some(app_state) = app_state.upgrade() {
  754                    prompt_and_open_paths(
  755                        app_state,
  756                        PathPromptOptions {
  757                            files: true,
  758                            directories,
  759                            multiple: true,
  760                            prompt: None,
  761                        },
  762                        cx,
  763                    );
  764                }
  765            }
  766        });
  767}
  768
  769type BuildProjectItemFn =
  770    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  771
  772type BuildProjectItemForPathFn =
  773    fn(
  774        &Entity<Project>,
  775        &ProjectPath,
  776        &mut Window,
  777        &mut App,
  778    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  779
  780#[derive(Clone, Default)]
  781struct ProjectItemRegistry {
  782    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  783    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  784}
  785
  786impl ProjectItemRegistry {
  787    fn register<T: ProjectItem>(&mut self) {
  788        self.build_project_item_fns_by_type.insert(
  789            TypeId::of::<T::Item>(),
  790            |item, project, pane, window, cx| {
  791                let item = item.downcast().unwrap();
  792                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  793                    as Box<dyn ItemHandle>
  794            },
  795        );
  796        self.build_project_item_for_path_fns
  797            .push(|project, project_path, window, cx| {
  798                let project_path = project_path.clone();
  799                let is_file = project
  800                    .read(cx)
  801                    .entry_for_path(&project_path, cx)
  802                    .is_some_and(|entry| entry.is_file());
  803                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  804                let is_local = project.read(cx).is_local();
  805                let project_item =
  806                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  807                let project = project.clone();
  808                Some(window.spawn(cx, async move |cx| {
  809                    match project_item.await.with_context(|| {
  810                        format!(
  811                            "opening project path {:?}",
  812                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  813                        )
  814                    }) {
  815                        Ok(project_item) => {
  816                            let project_item = project_item;
  817                            let project_entry_id: Option<ProjectEntryId> =
  818                                project_item.read_with(cx, project::ProjectItem::entry_id);
  819                            let build_workspace_item = Box::new(
  820                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  821                                    Box::new(cx.new(|cx| {
  822                                        T::for_project_item(
  823                                            project,
  824                                            Some(pane),
  825                                            project_item,
  826                                            window,
  827                                            cx,
  828                                        )
  829                                    })) as Box<dyn ItemHandle>
  830                                },
  831                            ) as Box<_>;
  832                            Ok((project_entry_id, build_workspace_item))
  833                        }
  834                        Err(e) => {
  835                            log::warn!("Failed to open a project item: {e:#}");
  836                            if e.error_code() == ErrorCode::Internal {
  837                                if let Some(abs_path) =
  838                                    entry_abs_path.as_deref().filter(|_| is_file)
  839                                {
  840                                    if let Some(broken_project_item_view) =
  841                                        cx.update(|window, cx| {
  842                                            T::for_broken_project_item(
  843                                                abs_path, is_local, &e, window, cx,
  844                                            )
  845                                        })?
  846                                    {
  847                                        let build_workspace_item = Box::new(
  848                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  849                                                cx.new(|_| broken_project_item_view).boxed_clone()
  850                                            },
  851                                        )
  852                                        as Box<_>;
  853                                        return Ok((None, build_workspace_item));
  854                                    }
  855                                }
  856                            }
  857                            Err(e)
  858                        }
  859                    }
  860                }))
  861            });
  862    }
  863
  864    fn open_path(
  865        &self,
  866        project: &Entity<Project>,
  867        path: &ProjectPath,
  868        window: &mut Window,
  869        cx: &mut App,
  870    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  871        let Some(open_project_item) = self
  872            .build_project_item_for_path_fns
  873            .iter()
  874            .rev()
  875            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  876        else {
  877            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  878        };
  879        open_project_item
  880    }
  881
  882    fn build_item<T: project::ProjectItem>(
  883        &self,
  884        item: Entity<T>,
  885        project: Entity<Project>,
  886        pane: Option<&Pane>,
  887        window: &mut Window,
  888        cx: &mut App,
  889    ) -> Option<Box<dyn ItemHandle>> {
  890        let build = self
  891            .build_project_item_fns_by_type
  892            .get(&TypeId::of::<T>())?;
  893        Some(build(item.into_any(), project, pane, window, cx))
  894    }
  895}
  896
  897type WorkspaceItemBuilder =
  898    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  899
  900impl Global for ProjectItemRegistry {}
  901
  902/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  903/// items will get a chance to open the file, starting from the project item that
  904/// was added last.
  905pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  906    cx.default_global::<ProjectItemRegistry>().register::<I>();
  907}
  908
  909#[derive(Default)]
  910pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  911
  912struct FollowableViewDescriptor {
  913    from_state_proto: fn(
  914        Entity<Workspace>,
  915        ViewId,
  916        &mut Option<proto::view::Variant>,
  917        &mut Window,
  918        &mut App,
  919    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  920    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  921}
  922
  923impl Global for FollowableViewRegistry {}
  924
  925impl FollowableViewRegistry {
  926    pub fn register<I: FollowableItem>(cx: &mut App) {
  927        cx.default_global::<Self>().0.insert(
  928            TypeId::of::<I>(),
  929            FollowableViewDescriptor {
  930                from_state_proto: |workspace, id, state, window, cx| {
  931                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  932                        cx.foreground_executor()
  933                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  934                    })
  935                },
  936                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  937            },
  938        );
  939    }
  940
  941    pub fn from_state_proto(
  942        workspace: Entity<Workspace>,
  943        view_id: ViewId,
  944        mut state: Option<proto::view::Variant>,
  945        window: &mut Window,
  946        cx: &mut App,
  947    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  948        cx.update_default_global(|this: &mut Self, cx| {
  949            this.0.values().find_map(|descriptor| {
  950                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  951            })
  952        })
  953    }
  954
  955    pub fn to_followable_view(
  956        view: impl Into<AnyView>,
  957        cx: &App,
  958    ) -> Option<Box<dyn FollowableItemHandle>> {
  959        let this = cx.try_global::<Self>()?;
  960        let view = view.into();
  961        let descriptor = this.0.get(&view.entity_type())?;
  962        Some((descriptor.to_followable_view)(&view))
  963    }
  964}
  965
  966#[derive(Copy, Clone)]
  967struct SerializableItemDescriptor {
  968    deserialize: fn(
  969        Entity<Project>,
  970        WeakEntity<Workspace>,
  971        WorkspaceId,
  972        ItemId,
  973        &mut Window,
  974        &mut Context<Pane>,
  975    ) -> Task<Result<Box<dyn ItemHandle>>>,
  976    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  977    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  978}
  979
  980#[derive(Default)]
  981struct SerializableItemRegistry {
  982    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  983    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  984}
  985
  986impl Global for SerializableItemRegistry {}
  987
  988impl SerializableItemRegistry {
  989    fn deserialize(
  990        item_kind: &str,
  991        project: Entity<Project>,
  992        workspace: WeakEntity<Workspace>,
  993        workspace_id: WorkspaceId,
  994        item_item: ItemId,
  995        window: &mut Window,
  996        cx: &mut Context<Pane>,
  997    ) -> Task<Result<Box<dyn ItemHandle>>> {
  998        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  999            return Task::ready(Err(anyhow!(
 1000                "cannot deserialize {}, descriptor not found",
 1001                item_kind
 1002            )));
 1003        };
 1004
 1005        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1006    }
 1007
 1008    fn cleanup(
 1009        item_kind: &str,
 1010        workspace_id: WorkspaceId,
 1011        loaded_items: Vec<ItemId>,
 1012        window: &mut Window,
 1013        cx: &mut App,
 1014    ) -> Task<Result<()>> {
 1015        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1016            return Task::ready(Err(anyhow!(
 1017                "cannot cleanup {}, descriptor not found",
 1018                item_kind
 1019            )));
 1020        };
 1021
 1022        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1023    }
 1024
 1025    fn view_to_serializable_item_handle(
 1026        view: AnyView,
 1027        cx: &App,
 1028    ) -> Option<Box<dyn SerializableItemHandle>> {
 1029        let this = cx.try_global::<Self>()?;
 1030        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1031        Some((descriptor.view_to_serializable_item)(view))
 1032    }
 1033
 1034    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1035        let this = cx.try_global::<Self>()?;
 1036        this.descriptors_by_kind.get(item_kind).copied()
 1037    }
 1038}
 1039
 1040pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1041    let serialized_item_kind = I::serialized_item_kind();
 1042
 1043    let registry = cx.default_global::<SerializableItemRegistry>();
 1044    let descriptor = SerializableItemDescriptor {
 1045        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1046            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1047            cx.foreground_executor()
 1048                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1049        },
 1050        cleanup: |workspace_id, loaded_items, window, cx| {
 1051            I::cleanup(workspace_id, loaded_items, window, cx)
 1052        },
 1053        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1054    };
 1055    registry
 1056        .descriptors_by_kind
 1057        .insert(Arc::from(serialized_item_kind), descriptor);
 1058    registry
 1059        .descriptors_by_type
 1060        .insert(TypeId::of::<I>(), descriptor);
 1061}
 1062
 1063pub struct AppState {
 1064    pub languages: Arc<LanguageRegistry>,
 1065    pub client: Arc<Client>,
 1066    pub user_store: Entity<UserStore>,
 1067    pub workspace_store: Entity<WorkspaceStore>,
 1068    pub fs: Arc<dyn fs::Fs>,
 1069    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1070    pub node_runtime: NodeRuntime,
 1071    pub session: Entity<AppSession>,
 1072}
 1073
 1074struct GlobalAppState(Weak<AppState>);
 1075
 1076impl Global for GlobalAppState {}
 1077
 1078pub struct WorkspaceStore {
 1079    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1080    client: Arc<Client>,
 1081    _subscriptions: Vec<client::Subscription>,
 1082}
 1083
 1084#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1085pub enum CollaboratorId {
 1086    PeerId(PeerId),
 1087    Agent,
 1088}
 1089
 1090impl From<PeerId> for CollaboratorId {
 1091    fn from(peer_id: PeerId) -> Self {
 1092        CollaboratorId::PeerId(peer_id)
 1093    }
 1094}
 1095
 1096impl From<&PeerId> for CollaboratorId {
 1097    fn from(peer_id: &PeerId) -> Self {
 1098        CollaboratorId::PeerId(*peer_id)
 1099    }
 1100}
 1101
 1102#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1103struct Follower {
 1104    project_id: Option<u64>,
 1105    peer_id: PeerId,
 1106}
 1107
 1108impl AppState {
 1109    #[track_caller]
 1110    pub fn global(cx: &App) -> Weak<Self> {
 1111        cx.global::<GlobalAppState>().0.clone()
 1112    }
 1113    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1114        cx.try_global::<GlobalAppState>()
 1115            .map(|state| state.0.clone())
 1116    }
 1117    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1118        cx.set_global(GlobalAppState(state));
 1119    }
 1120
 1121    #[cfg(any(test, feature = "test-support"))]
 1122    pub fn test(cx: &mut App) -> Arc<Self> {
 1123        use fs::Fs;
 1124        use node_runtime::NodeRuntime;
 1125        use session::Session;
 1126        use settings::SettingsStore;
 1127
 1128        if !cx.has_global::<SettingsStore>() {
 1129            let settings_store = SettingsStore::test(cx);
 1130            cx.set_global(settings_store);
 1131        }
 1132
 1133        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1134        <dyn Fs>::set_global(fs.clone(), cx);
 1135        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1136        let clock = Arc::new(clock::FakeSystemClock::new());
 1137        let http_client = http_client::FakeHttpClient::with_404_response();
 1138        let client = Client::new(clock, http_client, cx);
 1139        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1140        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1141        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1142
 1143        theme::init(theme::LoadThemes::JustBase, cx);
 1144        client::init(&client, cx);
 1145
 1146        Arc::new(Self {
 1147            client,
 1148            fs,
 1149            languages,
 1150            user_store,
 1151            workspace_store,
 1152            node_runtime: NodeRuntime::unavailable(),
 1153            build_window_options: |_, _| Default::default(),
 1154            session,
 1155        })
 1156    }
 1157}
 1158
 1159struct DelayedDebouncedEditAction {
 1160    task: Option<Task<()>>,
 1161    cancel_channel: Option<oneshot::Sender<()>>,
 1162}
 1163
 1164impl DelayedDebouncedEditAction {
 1165    fn new() -> DelayedDebouncedEditAction {
 1166        DelayedDebouncedEditAction {
 1167            task: None,
 1168            cancel_channel: None,
 1169        }
 1170    }
 1171
 1172    fn fire_new<F>(
 1173        &mut self,
 1174        delay: Duration,
 1175        window: &mut Window,
 1176        cx: &mut Context<Workspace>,
 1177        func: F,
 1178    ) where
 1179        F: 'static
 1180            + Send
 1181            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1182    {
 1183        if let Some(channel) = self.cancel_channel.take() {
 1184            _ = channel.send(());
 1185        }
 1186
 1187        let (sender, mut receiver) = oneshot::channel::<()>();
 1188        self.cancel_channel = Some(sender);
 1189
 1190        let previous_task = self.task.take();
 1191        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1192            let mut timer = cx.background_executor().timer(delay).fuse();
 1193            if let Some(previous_task) = previous_task {
 1194                previous_task.await;
 1195            }
 1196
 1197            futures::select_biased! {
 1198                _ = receiver => return,
 1199                    _ = timer => {}
 1200            }
 1201
 1202            if let Some(result) = workspace
 1203                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1204                .log_err()
 1205            {
 1206                result.await.log_err();
 1207            }
 1208        }));
 1209    }
 1210}
 1211
 1212pub enum Event {
 1213    PaneAdded(Entity<Pane>),
 1214    PaneRemoved,
 1215    ItemAdded {
 1216        item: Box<dyn ItemHandle>,
 1217    },
 1218    ActiveItemChanged,
 1219    ItemRemoved {
 1220        item_id: EntityId,
 1221    },
 1222    UserSavedItem {
 1223        pane: WeakEntity<Pane>,
 1224        item: Box<dyn WeakItemHandle>,
 1225        save_intent: SaveIntent,
 1226    },
 1227    ContactRequestedJoin(u64),
 1228    WorkspaceCreated(WeakEntity<Workspace>),
 1229    OpenBundledFile {
 1230        text: Cow<'static, str>,
 1231        title: &'static str,
 1232        language: &'static str,
 1233    },
 1234    ZoomChanged,
 1235    ModalOpened,
 1236    Activate,
 1237    PanelAdded(AnyView),
 1238}
 1239
 1240#[derive(Debug, Clone)]
 1241pub enum OpenVisible {
 1242    All,
 1243    None,
 1244    OnlyFiles,
 1245    OnlyDirectories,
 1246}
 1247
 1248enum WorkspaceLocation {
 1249    // Valid local paths or SSH project to serialize
 1250    Location(SerializedWorkspaceLocation, PathList),
 1251    // No valid location found hence clear session id
 1252    DetachFromSession,
 1253    // No valid location found to serialize
 1254    None,
 1255}
 1256
 1257type PromptForNewPath = Box<
 1258    dyn Fn(
 1259        &mut Workspace,
 1260        DirectoryLister,
 1261        Option<String>,
 1262        &mut Window,
 1263        &mut Context<Workspace>,
 1264    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1265>;
 1266
 1267type PromptForOpenPath = Box<
 1268    dyn Fn(
 1269        &mut Workspace,
 1270        DirectoryLister,
 1271        &mut Window,
 1272        &mut Context<Workspace>,
 1273    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1274>;
 1275
 1276#[derive(Default)]
 1277struct DispatchingKeystrokes {
 1278    dispatched: HashSet<Vec<Keystroke>>,
 1279    queue: VecDeque<Keystroke>,
 1280    task: Option<Shared<Task<()>>>,
 1281}
 1282
 1283/// Collects everything project-related for a certain window opened.
 1284/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1285///
 1286/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1287/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1288/// that can be used to register a global action to be triggered from any place in the window.
 1289pub struct Workspace {
 1290    weak_self: WeakEntity<Self>,
 1291    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1292    zoomed: Option<AnyWeakView>,
 1293    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1294    zoomed_position: Option<DockPosition>,
 1295    center: PaneGroup,
 1296    left_dock: Entity<Dock>,
 1297    bottom_dock: Entity<Dock>,
 1298    right_dock: Entity<Dock>,
 1299    panes: Vec<Entity<Pane>>,
 1300    active_worktree_override: Option<WorktreeId>,
 1301    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1302    active_pane: Entity<Pane>,
 1303    last_active_center_pane: Option<WeakEntity<Pane>>,
 1304    last_active_view_id: Option<proto::ViewId>,
 1305    status_bar: Entity<StatusBar>,
 1306    pub(crate) modal_layer: Entity<ModalLayer>,
 1307    toast_layer: Entity<ToastLayer>,
 1308    titlebar_item: Option<AnyView>,
 1309    notifications: Notifications,
 1310    suppressed_notifications: HashSet<NotificationId>,
 1311    project: Entity<Project>,
 1312    follower_states: HashMap<CollaboratorId, FollowerState>,
 1313    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1314    window_edited: bool,
 1315    last_window_title: Option<String>,
 1316    dirty_items: HashMap<EntityId, Subscription>,
 1317    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1318    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1319    database_id: Option<WorkspaceId>,
 1320    app_state: Arc<AppState>,
 1321    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1322    _subscriptions: Vec<Subscription>,
 1323    _apply_leader_updates: Task<Result<()>>,
 1324    _observe_current_user: Task<Result<()>>,
 1325    _schedule_serialize_workspace: Option<Task<()>>,
 1326    _serialize_workspace_task: Option<Task<()>>,
 1327    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1328    pane_history_timestamp: Arc<AtomicUsize>,
 1329    bounds: Bounds<Pixels>,
 1330    pub centered_layout: bool,
 1331    bounds_save_task_queued: Option<Task<()>>,
 1332    on_prompt_for_new_path: Option<PromptForNewPath>,
 1333    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1334    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1335    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1336    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1337    _items_serializer: Task<Result<()>>,
 1338    session_id: Option<String>,
 1339    scheduled_tasks: Vec<Task<()>>,
 1340    last_open_dock_positions: Vec<DockPosition>,
 1341    removing: bool,
 1342    _panels_task: Option<Task<Result<()>>>,
 1343    sidebar_focus_handle: Option<FocusHandle>,
 1344}
 1345
 1346impl EventEmitter<Event> for Workspace {}
 1347
 1348#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1349pub struct ViewId {
 1350    pub creator: CollaboratorId,
 1351    pub id: u64,
 1352}
 1353
 1354pub struct FollowerState {
 1355    center_pane: Entity<Pane>,
 1356    dock_pane: Option<Entity<Pane>>,
 1357    active_view_id: Option<ViewId>,
 1358    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1359}
 1360
 1361struct FollowerView {
 1362    view: Box<dyn FollowableItemHandle>,
 1363    location: Option<proto::PanelId>,
 1364}
 1365
 1366impl Workspace {
 1367    pub fn new(
 1368        workspace_id: Option<WorkspaceId>,
 1369        project: Entity<Project>,
 1370        app_state: Arc<AppState>,
 1371        window: &mut Window,
 1372        cx: &mut Context<Self>,
 1373    ) -> Self {
 1374        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1375            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1376                if let TrustedWorktreesEvent::Trusted(..) = e {
 1377                    // Do not persist auto trusted worktrees
 1378                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1379                        worktrees_store.update(cx, |worktrees_store, cx| {
 1380                            worktrees_store.schedule_serialization(
 1381                                cx,
 1382                                |new_trusted_worktrees, cx| {
 1383                                    let timeout =
 1384                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1385                                    let db = WorkspaceDb::global(cx);
 1386                                    cx.background_spawn(async move {
 1387                                        timeout.await;
 1388                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1389                                            .await
 1390                                            .log_err();
 1391                                    })
 1392                                },
 1393                            )
 1394                        });
 1395                    }
 1396                }
 1397            })
 1398            .detach();
 1399
 1400            cx.observe_global::<SettingsStore>(|_, cx| {
 1401                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1402                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1403                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1404                            trusted_worktrees.auto_trust_all(cx);
 1405                        })
 1406                    }
 1407                }
 1408            })
 1409            .detach();
 1410        }
 1411
 1412        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1413            match event {
 1414                project::Event::RemoteIdChanged(_) => {
 1415                    this.update_window_title(window, cx);
 1416                }
 1417
 1418                project::Event::CollaboratorLeft(peer_id) => {
 1419                    this.collaborator_left(*peer_id, window, cx);
 1420                }
 1421
 1422                &project::Event::WorktreeRemoved(id) | &project::Event::WorktreeAdded(id) => {
 1423                    this.update_window_title(window, cx);
 1424                    if this
 1425                        .project()
 1426                        .read(cx)
 1427                        .worktree_for_id(id, cx)
 1428                        .is_some_and(|wt| wt.read(cx).is_visible())
 1429                    {
 1430                        this.serialize_workspace(window, cx);
 1431                        this.update_history(cx);
 1432                    }
 1433                }
 1434                project::Event::WorktreeUpdatedEntries(..) => {
 1435                    this.update_window_title(window, cx);
 1436                    this.serialize_workspace(window, cx);
 1437                }
 1438
 1439                project::Event::DisconnectedFromHost => {
 1440                    this.update_window_edited(window, cx);
 1441                    let leaders_to_unfollow =
 1442                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1443                    for leader_id in leaders_to_unfollow {
 1444                        this.unfollow(leader_id, window, cx);
 1445                    }
 1446                }
 1447
 1448                project::Event::DisconnectedFromRemote {
 1449                    server_not_running: _,
 1450                } => {
 1451                    this.update_window_edited(window, cx);
 1452                }
 1453
 1454                project::Event::Closed => {
 1455                    window.remove_window();
 1456                }
 1457
 1458                project::Event::DeletedEntry(_, entry_id) => {
 1459                    for pane in this.panes.iter() {
 1460                        pane.update(cx, |pane, cx| {
 1461                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1462                        });
 1463                    }
 1464                }
 1465
 1466                project::Event::Toast {
 1467                    notification_id,
 1468                    message,
 1469                    link,
 1470                } => this.show_notification(
 1471                    NotificationId::named(notification_id.clone()),
 1472                    cx,
 1473                    |cx| {
 1474                        let mut notification = MessageNotification::new(message.clone(), cx);
 1475                        if let Some(link) = link {
 1476                            notification = notification
 1477                                .more_info_message(link.label)
 1478                                .more_info_url(link.url);
 1479                        }
 1480
 1481                        cx.new(|_| notification)
 1482                    },
 1483                ),
 1484
 1485                project::Event::HideToast { notification_id } => {
 1486                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1487                }
 1488
 1489                project::Event::LanguageServerPrompt(request) => {
 1490                    struct LanguageServerPrompt;
 1491
 1492                    this.show_notification(
 1493                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1494                        cx,
 1495                        |cx| {
 1496                            cx.new(|cx| {
 1497                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1498                            })
 1499                        },
 1500                    );
 1501                }
 1502
 1503                project::Event::AgentLocationChanged => {
 1504                    this.handle_agent_location_changed(window, cx)
 1505                }
 1506
 1507                _ => {}
 1508            }
 1509            cx.notify()
 1510        })
 1511        .detach();
 1512
 1513        cx.subscribe_in(
 1514            &project.read(cx).breakpoint_store(),
 1515            window,
 1516            |workspace, _, event, window, cx| match event {
 1517                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1518                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1519                    workspace.serialize_workspace(window, cx);
 1520                }
 1521                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1522            },
 1523        )
 1524        .detach();
 1525        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1526            cx.subscribe_in(
 1527                &toolchain_store,
 1528                window,
 1529                |workspace, _, event, window, cx| match event {
 1530                    ToolchainStoreEvent::CustomToolchainsModified => {
 1531                        workspace.serialize_workspace(window, cx);
 1532                    }
 1533                    _ => {}
 1534                },
 1535            )
 1536            .detach();
 1537        }
 1538
 1539        cx.on_focus_lost(window, |this, window, cx| {
 1540            let focus_handle = this.focus_handle(cx);
 1541            window.focus(&focus_handle, cx);
 1542        })
 1543        .detach();
 1544
 1545        let weak_handle = cx.entity().downgrade();
 1546        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1547
 1548        let center_pane = cx.new(|cx| {
 1549            let mut center_pane = Pane::new(
 1550                weak_handle.clone(),
 1551                project.clone(),
 1552                pane_history_timestamp.clone(),
 1553                None,
 1554                NewFile.boxed_clone(),
 1555                true,
 1556                window,
 1557                cx,
 1558            );
 1559            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1560            center_pane.set_should_display_welcome_page(true);
 1561            center_pane
 1562        });
 1563        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1564            .detach();
 1565
 1566        window.focus(&center_pane.focus_handle(cx), cx);
 1567
 1568        cx.emit(Event::PaneAdded(center_pane.clone()));
 1569
 1570        let any_window_handle = window.window_handle();
 1571        app_state.workspace_store.update(cx, |store, _| {
 1572            store
 1573                .workspaces
 1574                .insert((any_window_handle, weak_handle.clone()));
 1575        });
 1576
 1577        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1578        let mut connection_status = app_state.client.status();
 1579        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1580            current_user.next().await;
 1581            connection_status.next().await;
 1582            let mut stream =
 1583                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1584
 1585            while stream.recv().await.is_some() {
 1586                this.update(cx, |_, cx| cx.notify())?;
 1587            }
 1588            anyhow::Ok(())
 1589        });
 1590
 1591        // All leader updates are enqueued and then processed in a single task, so
 1592        // that each asynchronous operation can be run in order.
 1593        let (leader_updates_tx, mut leader_updates_rx) =
 1594            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1595        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1596            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1597                Self::process_leader_update(&this, leader_id, update, cx)
 1598                    .await
 1599                    .log_err();
 1600            }
 1601
 1602            Ok(())
 1603        });
 1604
 1605        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1606        let modal_layer = cx.new(|_| ModalLayer::new());
 1607        let toast_layer = cx.new(|_| ToastLayer::new());
 1608        cx.subscribe(
 1609            &modal_layer,
 1610            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1611                cx.emit(Event::ModalOpened);
 1612            },
 1613        )
 1614        .detach();
 1615
 1616        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1617        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1618        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1619        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1620        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1621        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1622        let status_bar = cx.new(|cx| {
 1623            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1624            status_bar.add_left_item(left_dock_buttons, window, cx);
 1625            status_bar.add_right_item(right_dock_buttons, window, cx);
 1626            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1627            status_bar
 1628        });
 1629
 1630        let session_id = app_state.session.read(cx).id().to_owned();
 1631
 1632        let mut active_call = None;
 1633        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1634            let subscriptions =
 1635                vec![
 1636                    call.0
 1637                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1638                ];
 1639            active_call = Some((call, subscriptions));
 1640        }
 1641
 1642        let (serializable_items_tx, serializable_items_rx) =
 1643            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1644        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1645            Self::serialize_items(&this, serializable_items_rx, cx).await
 1646        });
 1647
 1648        let subscriptions = vec![
 1649            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1650            cx.observe_window_bounds(window, move |this, window, cx| {
 1651                if this.bounds_save_task_queued.is_some() {
 1652                    return;
 1653                }
 1654                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1655                    cx.background_executor()
 1656                        .timer(Duration::from_millis(100))
 1657                        .await;
 1658                    this.update_in(cx, |this, window, cx| {
 1659                        this.save_window_bounds(window, cx).detach();
 1660                        this.bounds_save_task_queued.take();
 1661                    })
 1662                    .ok();
 1663                }));
 1664                cx.notify();
 1665            }),
 1666            cx.observe_window_appearance(window, |_, window, cx| {
 1667                let window_appearance = window.appearance();
 1668
 1669                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1670
 1671                GlobalTheme::reload_theme(cx);
 1672                GlobalTheme::reload_icon_theme(cx);
 1673            }),
 1674            cx.on_release({
 1675                let weak_handle = weak_handle.clone();
 1676                move |this, cx| {
 1677                    this.app_state.workspace_store.update(cx, move |store, _| {
 1678                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1679                    })
 1680                }
 1681            }),
 1682        ];
 1683
 1684        cx.defer_in(window, move |this, window, cx| {
 1685            this.update_window_title(window, cx);
 1686            this.show_initial_notifications(cx);
 1687        });
 1688
 1689        let mut center = PaneGroup::new(center_pane.clone());
 1690        center.set_is_center(true);
 1691        center.mark_positions(cx);
 1692
 1693        Workspace {
 1694            weak_self: weak_handle.clone(),
 1695            zoomed: None,
 1696            zoomed_position: None,
 1697            previous_dock_drag_coordinates: None,
 1698            center,
 1699            panes: vec![center_pane.clone()],
 1700            panes_by_item: Default::default(),
 1701            active_pane: center_pane.clone(),
 1702            last_active_center_pane: Some(center_pane.downgrade()),
 1703            last_active_view_id: None,
 1704            status_bar,
 1705            modal_layer,
 1706            toast_layer,
 1707            titlebar_item: None,
 1708            active_worktree_override: None,
 1709            notifications: Notifications::default(),
 1710            suppressed_notifications: HashSet::default(),
 1711            left_dock,
 1712            bottom_dock,
 1713            right_dock,
 1714            _panels_task: None,
 1715            project: project.clone(),
 1716            follower_states: Default::default(),
 1717            last_leaders_by_pane: Default::default(),
 1718            dispatching_keystrokes: Default::default(),
 1719            window_edited: false,
 1720            last_window_title: None,
 1721            dirty_items: Default::default(),
 1722            active_call,
 1723            database_id: workspace_id,
 1724            app_state,
 1725            _observe_current_user,
 1726            _apply_leader_updates,
 1727            _schedule_serialize_workspace: None,
 1728            _serialize_workspace_task: None,
 1729            _schedule_serialize_ssh_paths: None,
 1730            leader_updates_tx,
 1731            _subscriptions: subscriptions,
 1732            pane_history_timestamp,
 1733            workspace_actions: Default::default(),
 1734            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1735            bounds: Default::default(),
 1736            centered_layout: false,
 1737            bounds_save_task_queued: None,
 1738            on_prompt_for_new_path: None,
 1739            on_prompt_for_open_path: None,
 1740            terminal_provider: None,
 1741            debugger_provider: None,
 1742            serializable_items_tx,
 1743            _items_serializer,
 1744            session_id: Some(session_id),
 1745
 1746            scheduled_tasks: Vec::new(),
 1747            last_open_dock_positions: Vec::new(),
 1748            removing: false,
 1749            sidebar_focus_handle: None,
 1750        }
 1751    }
 1752
 1753    pub fn new_local(
 1754        abs_paths: Vec<PathBuf>,
 1755        app_state: Arc<AppState>,
 1756        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1757        env: Option<HashMap<String, String>>,
 1758        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1759        activate: bool,
 1760        cx: &mut App,
 1761    ) -> Task<anyhow::Result<OpenResult>> {
 1762        let project_handle = Project::local(
 1763            app_state.client.clone(),
 1764            app_state.node_runtime.clone(),
 1765            app_state.user_store.clone(),
 1766            app_state.languages.clone(),
 1767            app_state.fs.clone(),
 1768            env,
 1769            Default::default(),
 1770            cx,
 1771        );
 1772
 1773        let db = WorkspaceDb::global(cx);
 1774        let kvp = db::kvp::KeyValueStore::global(cx);
 1775        cx.spawn(async move |cx| {
 1776            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1777            for path in abs_paths.into_iter() {
 1778                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1779                    paths_to_open.push(canonical)
 1780                } else {
 1781                    paths_to_open.push(path)
 1782                }
 1783            }
 1784
 1785            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1786
 1787            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1788                paths_to_open = paths.ordered_paths().cloned().collect();
 1789                if !paths.is_lexicographically_ordered() {
 1790                    project_handle.update(cx, |project, cx| {
 1791                        project.set_worktrees_reordered(true, cx);
 1792                    });
 1793                }
 1794            }
 1795
 1796            // Get project paths for all of the abs_paths
 1797            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1798                Vec::with_capacity(paths_to_open.len());
 1799
 1800            for path in paths_to_open.into_iter() {
 1801                if let Some((_, project_entry)) = cx
 1802                    .update(|cx| {
 1803                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1804                    })
 1805                    .await
 1806                    .log_err()
 1807                {
 1808                    project_paths.push((path, Some(project_entry)));
 1809                } else {
 1810                    project_paths.push((path, None));
 1811                }
 1812            }
 1813
 1814            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1815                serialized_workspace.id
 1816            } else {
 1817                db.next_id().await.unwrap_or_else(|_| Default::default())
 1818            };
 1819
 1820            let toolchains = db.toolchains(workspace_id).await?;
 1821
 1822            for (toolchain, worktree_path, path) in toolchains {
 1823                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1824                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1825                    this.find_worktree(&worktree_path, cx)
 1826                        .and_then(|(worktree, rel_path)| {
 1827                            if rel_path.is_empty() {
 1828                                Some(worktree.read(cx).id())
 1829                            } else {
 1830                                None
 1831                            }
 1832                        })
 1833                }) else {
 1834                    // We did not find a worktree with a given path, but that's whatever.
 1835                    continue;
 1836                };
 1837                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1838                    continue;
 1839                }
 1840
 1841                project_handle
 1842                    .update(cx, |this, cx| {
 1843                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1844                    })
 1845                    .await;
 1846            }
 1847            if let Some(workspace) = serialized_workspace.as_ref() {
 1848                project_handle.update(cx, |this, cx| {
 1849                    for (scope, toolchains) in &workspace.user_toolchains {
 1850                        for toolchain in toolchains {
 1851                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1852                        }
 1853                    }
 1854                });
 1855            }
 1856
 1857            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1858                if let Some(window) = requesting_window {
 1859                    let centered_layout = serialized_workspace
 1860                        .as_ref()
 1861                        .map(|w| w.centered_layout)
 1862                        .unwrap_or(false);
 1863
 1864                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1865                        let workspace = cx.new(|cx| {
 1866                            let mut workspace = Workspace::new(
 1867                                Some(workspace_id),
 1868                                project_handle.clone(),
 1869                                app_state.clone(),
 1870                                window,
 1871                                cx,
 1872                            );
 1873
 1874                            workspace.centered_layout = centered_layout;
 1875
 1876                            // Call init callback to add items before window renders
 1877                            if let Some(init) = init {
 1878                                init(&mut workspace, window, cx);
 1879                            }
 1880
 1881                            workspace
 1882                        });
 1883                        if activate {
 1884                            multi_workspace.activate(workspace.clone(), cx);
 1885                        } else {
 1886                            multi_workspace.add_workspace(workspace.clone(), cx);
 1887                        }
 1888                        workspace
 1889                    })?;
 1890                    (window, workspace)
 1891                } else {
 1892                    let window_bounds_override = window_bounds_env_override();
 1893
 1894                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1895                        (Some(WindowBounds::Windowed(bounds)), None)
 1896                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1897                        && let Some(display) = workspace.display
 1898                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1899                    {
 1900                        // Reopening an existing workspace - restore its saved bounds
 1901                        (Some(bounds.0), Some(display))
 1902                    } else if let Some((display, bounds)) =
 1903                        persistence::read_default_window_bounds(&kvp)
 1904                    {
 1905                        // New or empty workspace - use the last known window bounds
 1906                        (Some(bounds), Some(display))
 1907                    } else {
 1908                        // New window - let GPUI's default_bounds() handle cascading
 1909                        (None, None)
 1910                    };
 1911
 1912                    // Use the serialized workspace to construct the new window
 1913                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1914                    options.window_bounds = window_bounds;
 1915                    let centered_layout = serialized_workspace
 1916                        .as_ref()
 1917                        .map(|w| w.centered_layout)
 1918                        .unwrap_or(false);
 1919                    let window = cx.open_window(options, {
 1920                        let app_state = app_state.clone();
 1921                        let project_handle = project_handle.clone();
 1922                        move |window, cx| {
 1923                            let workspace = cx.new(|cx| {
 1924                                let mut workspace = Workspace::new(
 1925                                    Some(workspace_id),
 1926                                    project_handle,
 1927                                    app_state,
 1928                                    window,
 1929                                    cx,
 1930                                );
 1931                                workspace.centered_layout = centered_layout;
 1932
 1933                                // Call init callback to add items before window renders
 1934                                if let Some(init) = init {
 1935                                    init(&mut workspace, window, cx);
 1936                                }
 1937
 1938                                workspace
 1939                            });
 1940                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 1941                        }
 1942                    })?;
 1943                    let workspace =
 1944                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1945                            multi_workspace.workspace().clone()
 1946                        })?;
 1947                    (window, workspace)
 1948                };
 1949
 1950            notify_if_database_failed(window, cx);
 1951            // Check if this is an empty workspace (no paths to open)
 1952            // An empty workspace is one where project_paths is empty
 1953            let is_empty_workspace = project_paths.is_empty();
 1954            // Check if serialized workspace has paths before it's moved
 1955            let serialized_workspace_has_paths = serialized_workspace
 1956                .as_ref()
 1957                .map(|ws| !ws.paths.is_empty())
 1958                .unwrap_or(false);
 1959
 1960            let opened_items = window
 1961                .update(cx, |_, window, cx| {
 1962                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1963                        open_items(serialized_workspace, project_paths, window, cx)
 1964                    })
 1965                })?
 1966                .await
 1967                .unwrap_or_default();
 1968
 1969            // Restore default dock state for empty workspaces
 1970            // Only restore if:
 1971            // 1. This is an empty workspace (no paths), AND
 1972            // 2. The serialized workspace either doesn't exist or has no paths
 1973            if is_empty_workspace && !serialized_workspace_has_paths {
 1974                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 1975                    window
 1976                        .update(cx, |_, window, cx| {
 1977                            workspace.update(cx, |workspace, cx| {
 1978                                for (dock, serialized_dock) in [
 1979                                    (&workspace.right_dock, &default_docks.right),
 1980                                    (&workspace.left_dock, &default_docks.left),
 1981                                    (&workspace.bottom_dock, &default_docks.bottom),
 1982                                ] {
 1983                                    dock.update(cx, |dock, cx| {
 1984                                        dock.serialized_dock = Some(serialized_dock.clone());
 1985                                        dock.restore_state(window, cx);
 1986                                    });
 1987                                }
 1988                                cx.notify();
 1989                            });
 1990                        })
 1991                        .log_err();
 1992                }
 1993            }
 1994
 1995            window
 1996                .update(cx, |_, _window, cx| {
 1997                    workspace.update(cx, |this: &mut Workspace, cx| {
 1998                        this.update_history(cx);
 1999                    });
 2000                })
 2001                .log_err();
 2002            Ok(OpenResult {
 2003                window,
 2004                workspace,
 2005                opened_items,
 2006            })
 2007        })
 2008    }
 2009
 2010    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2011        self.weak_self.clone()
 2012    }
 2013
 2014    pub fn left_dock(&self) -> &Entity<Dock> {
 2015        &self.left_dock
 2016    }
 2017
 2018    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2019        &self.bottom_dock
 2020    }
 2021
 2022    pub fn set_bottom_dock_layout(
 2023        &mut self,
 2024        layout: BottomDockLayout,
 2025        window: &mut Window,
 2026        cx: &mut Context<Self>,
 2027    ) {
 2028        let fs = self.project().read(cx).fs();
 2029        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2030            content.workspace.bottom_dock_layout = Some(layout);
 2031        });
 2032
 2033        cx.notify();
 2034        self.serialize_workspace(window, cx);
 2035    }
 2036
 2037    pub fn right_dock(&self) -> &Entity<Dock> {
 2038        &self.right_dock
 2039    }
 2040
 2041    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2042        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2043    }
 2044
 2045    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2046        let left_dock = self.left_dock.read(cx);
 2047        let left_visible = left_dock.is_open();
 2048        let left_active_panel = left_dock
 2049            .active_panel()
 2050            .map(|panel| panel.persistent_name().to_string());
 2051        // `zoomed_position` is kept in sync with individual panel zoom state
 2052        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2053        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2054
 2055        let right_dock = self.right_dock.read(cx);
 2056        let right_visible = right_dock.is_open();
 2057        let right_active_panel = right_dock
 2058            .active_panel()
 2059            .map(|panel| panel.persistent_name().to_string());
 2060        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2061
 2062        let bottom_dock = self.bottom_dock.read(cx);
 2063        let bottom_visible = bottom_dock.is_open();
 2064        let bottom_active_panel = bottom_dock
 2065            .active_panel()
 2066            .map(|panel| panel.persistent_name().to_string());
 2067        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2068
 2069        DockStructure {
 2070            left: DockData {
 2071                visible: left_visible,
 2072                active_panel: left_active_panel,
 2073                zoom: left_dock_zoom,
 2074            },
 2075            right: DockData {
 2076                visible: right_visible,
 2077                active_panel: right_active_panel,
 2078                zoom: right_dock_zoom,
 2079            },
 2080            bottom: DockData {
 2081                visible: bottom_visible,
 2082                active_panel: bottom_active_panel,
 2083                zoom: bottom_dock_zoom,
 2084            },
 2085        }
 2086    }
 2087
 2088    pub fn set_dock_structure(
 2089        &self,
 2090        docks: DockStructure,
 2091        window: &mut Window,
 2092        cx: &mut Context<Self>,
 2093    ) {
 2094        for (dock, data) in [
 2095            (&self.left_dock, docks.left),
 2096            (&self.bottom_dock, docks.bottom),
 2097            (&self.right_dock, docks.right),
 2098        ] {
 2099            dock.update(cx, |dock, cx| {
 2100                dock.serialized_dock = Some(data);
 2101                dock.restore_state(window, cx);
 2102            });
 2103        }
 2104    }
 2105
 2106    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2107        self.items(cx)
 2108            .filter_map(|item| {
 2109                let project_path = item.project_path(cx)?;
 2110                self.project.read(cx).absolute_path(&project_path, cx)
 2111            })
 2112            .collect()
 2113    }
 2114
 2115    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2116        match position {
 2117            DockPosition::Left => &self.left_dock,
 2118            DockPosition::Bottom => &self.bottom_dock,
 2119            DockPosition::Right => &self.right_dock,
 2120        }
 2121    }
 2122
 2123    pub fn is_edited(&self) -> bool {
 2124        self.window_edited
 2125    }
 2126
 2127    pub fn add_panel<T: Panel>(
 2128        &mut self,
 2129        panel: Entity<T>,
 2130        window: &mut Window,
 2131        cx: &mut Context<Self>,
 2132    ) {
 2133        let focus_handle = panel.panel_focus_handle(cx);
 2134        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2135            .detach();
 2136
 2137        let dock_position = panel.position(window, cx);
 2138        let dock = self.dock_at_position(dock_position);
 2139        let any_panel = panel.to_any();
 2140
 2141        dock.update(cx, |dock, cx| {
 2142            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 2143        });
 2144
 2145        cx.emit(Event::PanelAdded(any_panel));
 2146    }
 2147
 2148    pub fn remove_panel<T: Panel>(
 2149        &mut self,
 2150        panel: &Entity<T>,
 2151        window: &mut Window,
 2152        cx: &mut Context<Self>,
 2153    ) {
 2154        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2155            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2156        }
 2157    }
 2158
 2159    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2160        &self.status_bar
 2161    }
 2162
 2163    pub fn set_workspace_sidebar_open(&self, open: bool, cx: &mut App) {
 2164        self.status_bar.update(cx, |status_bar, cx| {
 2165            status_bar.set_workspace_sidebar_open(open, cx);
 2166        });
 2167    }
 2168
 2169    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2170        self.sidebar_focus_handle = handle;
 2171    }
 2172
 2173    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2174        StatusBarSettings::get_global(cx).show
 2175    }
 2176
 2177    pub fn app_state(&self) -> &Arc<AppState> {
 2178        &self.app_state
 2179    }
 2180
 2181    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2182        self._panels_task = Some(task);
 2183    }
 2184
 2185    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2186        self._panels_task.take()
 2187    }
 2188
 2189    pub fn user_store(&self) -> &Entity<UserStore> {
 2190        &self.app_state.user_store
 2191    }
 2192
 2193    pub fn project(&self) -> &Entity<Project> {
 2194        &self.project
 2195    }
 2196
 2197    pub fn path_style(&self, cx: &App) -> PathStyle {
 2198        self.project.read(cx).path_style(cx)
 2199    }
 2200
 2201    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2202        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2203
 2204        for pane_handle in &self.panes {
 2205            let pane = pane_handle.read(cx);
 2206
 2207            for entry in pane.activation_history() {
 2208                history.insert(
 2209                    entry.entity_id,
 2210                    history
 2211                        .get(&entry.entity_id)
 2212                        .cloned()
 2213                        .unwrap_or(0)
 2214                        .max(entry.timestamp),
 2215                );
 2216            }
 2217        }
 2218
 2219        history
 2220    }
 2221
 2222    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2223        let mut recent_item: Option<Entity<T>> = None;
 2224        let mut recent_timestamp = 0;
 2225        for pane_handle in &self.panes {
 2226            let pane = pane_handle.read(cx);
 2227            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2228                pane.items().map(|item| (item.item_id(), item)).collect();
 2229            for entry in pane.activation_history() {
 2230                if entry.timestamp > recent_timestamp
 2231                    && let Some(&item) = item_map.get(&entry.entity_id)
 2232                    && let Some(typed_item) = item.act_as::<T>(cx)
 2233                {
 2234                    recent_timestamp = entry.timestamp;
 2235                    recent_item = Some(typed_item);
 2236                }
 2237            }
 2238        }
 2239        recent_item
 2240    }
 2241
 2242    pub fn recent_navigation_history_iter(
 2243        &self,
 2244        cx: &App,
 2245    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2246        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2247        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2248
 2249        for pane in &self.panes {
 2250            let pane = pane.read(cx);
 2251
 2252            pane.nav_history()
 2253                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2254                    if let Some(fs_path) = &fs_path {
 2255                        abs_paths_opened
 2256                            .entry(fs_path.clone())
 2257                            .or_default()
 2258                            .insert(project_path.clone());
 2259                    }
 2260                    let timestamp = entry.timestamp;
 2261                    match history.entry(project_path) {
 2262                        hash_map::Entry::Occupied(mut entry) => {
 2263                            let (_, old_timestamp) = entry.get();
 2264                            if &timestamp > old_timestamp {
 2265                                entry.insert((fs_path, timestamp));
 2266                            }
 2267                        }
 2268                        hash_map::Entry::Vacant(entry) => {
 2269                            entry.insert((fs_path, timestamp));
 2270                        }
 2271                    }
 2272                });
 2273
 2274            if let Some(item) = pane.active_item()
 2275                && let Some(project_path) = item.project_path(cx)
 2276            {
 2277                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2278
 2279                if let Some(fs_path) = &fs_path {
 2280                    abs_paths_opened
 2281                        .entry(fs_path.clone())
 2282                        .or_default()
 2283                        .insert(project_path.clone());
 2284                }
 2285
 2286                history.insert(project_path, (fs_path, std::usize::MAX));
 2287            }
 2288        }
 2289
 2290        history
 2291            .into_iter()
 2292            .sorted_by_key(|(_, (_, order))| *order)
 2293            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2294            .rev()
 2295            .filter(move |(history_path, abs_path)| {
 2296                let latest_project_path_opened = abs_path
 2297                    .as_ref()
 2298                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2299                    .and_then(|project_paths| {
 2300                        project_paths
 2301                            .iter()
 2302                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2303                    });
 2304
 2305                latest_project_path_opened.is_none_or(|path| path == history_path)
 2306            })
 2307    }
 2308
 2309    pub fn recent_navigation_history(
 2310        &self,
 2311        limit: Option<usize>,
 2312        cx: &App,
 2313    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2314        self.recent_navigation_history_iter(cx)
 2315            .take(limit.unwrap_or(usize::MAX))
 2316            .collect()
 2317    }
 2318
 2319    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2320        for pane in &self.panes {
 2321            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2322        }
 2323    }
 2324
 2325    fn navigate_history(
 2326        &mut self,
 2327        pane: WeakEntity<Pane>,
 2328        mode: NavigationMode,
 2329        window: &mut Window,
 2330        cx: &mut Context<Workspace>,
 2331    ) -> Task<Result<()>> {
 2332        self.navigate_history_impl(
 2333            pane,
 2334            mode,
 2335            window,
 2336            &mut |history, cx| history.pop(mode, cx),
 2337            cx,
 2338        )
 2339    }
 2340
 2341    fn navigate_tag_history(
 2342        &mut self,
 2343        pane: WeakEntity<Pane>,
 2344        mode: TagNavigationMode,
 2345        window: &mut Window,
 2346        cx: &mut Context<Workspace>,
 2347    ) -> Task<Result<()>> {
 2348        self.navigate_history_impl(
 2349            pane,
 2350            NavigationMode::Normal,
 2351            window,
 2352            &mut |history, _cx| history.pop_tag(mode),
 2353            cx,
 2354        )
 2355    }
 2356
 2357    fn navigate_history_impl(
 2358        &mut self,
 2359        pane: WeakEntity<Pane>,
 2360        mode: NavigationMode,
 2361        window: &mut Window,
 2362        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2363        cx: &mut Context<Workspace>,
 2364    ) -> Task<Result<()>> {
 2365        let to_load = if let Some(pane) = pane.upgrade() {
 2366            pane.update(cx, |pane, cx| {
 2367                window.focus(&pane.focus_handle(cx), cx);
 2368                loop {
 2369                    // Retrieve the weak item handle from the history.
 2370                    let entry = cb(pane.nav_history_mut(), cx)?;
 2371
 2372                    // If the item is still present in this pane, then activate it.
 2373                    if let Some(index) = entry
 2374                        .item
 2375                        .upgrade()
 2376                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2377                    {
 2378                        let prev_active_item_index = pane.active_item_index();
 2379                        pane.nav_history_mut().set_mode(mode);
 2380                        pane.activate_item(index, true, true, window, cx);
 2381                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2382
 2383                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2384                        if let Some(data) = entry.data {
 2385                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2386                        }
 2387
 2388                        if navigated {
 2389                            break None;
 2390                        }
 2391                    } else {
 2392                        // If the item is no longer present in this pane, then retrieve its
 2393                        // path info in order to reopen it.
 2394                        break pane
 2395                            .nav_history()
 2396                            .path_for_item(entry.item.id())
 2397                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2398                    }
 2399                }
 2400            })
 2401        } else {
 2402            None
 2403        };
 2404
 2405        if let Some((project_path, abs_path, entry)) = to_load {
 2406            // If the item was no longer present, then load it again from its previous path, first try the local path
 2407            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2408
 2409            cx.spawn_in(window, async move  |workspace, cx| {
 2410                let open_by_project_path = open_by_project_path.await;
 2411                let mut navigated = false;
 2412                match open_by_project_path
 2413                    .with_context(|| format!("Navigating to {project_path:?}"))
 2414                {
 2415                    Ok((project_entry_id, build_item)) => {
 2416                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2417                            pane.nav_history_mut().set_mode(mode);
 2418                            pane.active_item().map(|p| p.item_id())
 2419                        })?;
 2420
 2421                        pane.update_in(cx, |pane, window, cx| {
 2422                            let item = pane.open_item(
 2423                                project_entry_id,
 2424                                project_path,
 2425                                true,
 2426                                entry.is_preview,
 2427                                true,
 2428                                None,
 2429                                window, cx,
 2430                                build_item,
 2431                            );
 2432                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2433                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2434                            if let Some(data) = entry.data {
 2435                                navigated |= item.navigate(data, window, cx);
 2436                            }
 2437                        })?;
 2438                    }
 2439                    Err(open_by_project_path_e) => {
 2440                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2441                        // and its worktree is now dropped
 2442                        if let Some(abs_path) = abs_path {
 2443                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2444                                pane.nav_history_mut().set_mode(mode);
 2445                                pane.active_item().map(|p| p.item_id())
 2446                            })?;
 2447                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2448                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2449                            })?;
 2450                            match open_by_abs_path
 2451                                .await
 2452                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2453                            {
 2454                                Ok(item) => {
 2455                                    pane.update_in(cx, |pane, window, cx| {
 2456                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2457                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2458                                        if let Some(data) = entry.data {
 2459                                            navigated |= item.navigate(data, window, cx);
 2460                                        }
 2461                                    })?;
 2462                                }
 2463                                Err(open_by_abs_path_e) => {
 2464                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2465                                }
 2466                            }
 2467                        }
 2468                    }
 2469                }
 2470
 2471                if !navigated {
 2472                    workspace
 2473                        .update_in(cx, |workspace, window, cx| {
 2474                            Self::navigate_history(workspace, pane, mode, window, cx)
 2475                        })?
 2476                        .await?;
 2477                }
 2478
 2479                Ok(())
 2480            })
 2481        } else {
 2482            Task::ready(Ok(()))
 2483        }
 2484    }
 2485
 2486    pub fn go_back(
 2487        &mut self,
 2488        pane: WeakEntity<Pane>,
 2489        window: &mut Window,
 2490        cx: &mut Context<Workspace>,
 2491    ) -> Task<Result<()>> {
 2492        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2493    }
 2494
 2495    pub fn go_forward(
 2496        &mut self,
 2497        pane: WeakEntity<Pane>,
 2498        window: &mut Window,
 2499        cx: &mut Context<Workspace>,
 2500    ) -> Task<Result<()>> {
 2501        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2502    }
 2503
 2504    pub fn reopen_closed_item(
 2505        &mut self,
 2506        window: &mut Window,
 2507        cx: &mut Context<Workspace>,
 2508    ) -> Task<Result<()>> {
 2509        self.navigate_history(
 2510            self.active_pane().downgrade(),
 2511            NavigationMode::ReopeningClosedItem,
 2512            window,
 2513            cx,
 2514        )
 2515    }
 2516
 2517    pub fn client(&self) -> &Arc<Client> {
 2518        &self.app_state.client
 2519    }
 2520
 2521    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2522        self.titlebar_item = Some(item);
 2523        cx.notify();
 2524    }
 2525
 2526    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2527        self.on_prompt_for_new_path = Some(prompt)
 2528    }
 2529
 2530    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2531        self.on_prompt_for_open_path = Some(prompt)
 2532    }
 2533
 2534    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2535        self.terminal_provider = Some(Box::new(provider));
 2536    }
 2537
 2538    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2539        self.debugger_provider = Some(Arc::new(provider));
 2540    }
 2541
 2542    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2543        self.debugger_provider.clone()
 2544    }
 2545
 2546    pub fn prompt_for_open_path(
 2547        &mut self,
 2548        path_prompt_options: PathPromptOptions,
 2549        lister: DirectoryLister,
 2550        window: &mut Window,
 2551        cx: &mut Context<Self>,
 2552    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2553        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2554            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2555            let rx = prompt(self, lister, window, cx);
 2556            self.on_prompt_for_open_path = Some(prompt);
 2557            rx
 2558        } else {
 2559            let (tx, rx) = oneshot::channel();
 2560            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2561
 2562            cx.spawn_in(window, async move |workspace, cx| {
 2563                let Ok(result) = abs_path.await else {
 2564                    return Ok(());
 2565                };
 2566
 2567                match result {
 2568                    Ok(result) => {
 2569                        tx.send(result).ok();
 2570                    }
 2571                    Err(err) => {
 2572                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2573                            workspace.show_portal_error(err.to_string(), cx);
 2574                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2575                            let rx = prompt(workspace, lister, window, cx);
 2576                            workspace.on_prompt_for_open_path = Some(prompt);
 2577                            rx
 2578                        })?;
 2579                        if let Ok(path) = rx.await {
 2580                            tx.send(path).ok();
 2581                        }
 2582                    }
 2583                };
 2584                anyhow::Ok(())
 2585            })
 2586            .detach();
 2587
 2588            rx
 2589        }
 2590    }
 2591
 2592    pub fn prompt_for_new_path(
 2593        &mut self,
 2594        lister: DirectoryLister,
 2595        suggested_name: Option<String>,
 2596        window: &mut Window,
 2597        cx: &mut Context<Self>,
 2598    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2599        if self.project.read(cx).is_via_collab()
 2600            || self.project.read(cx).is_via_remote_server()
 2601            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2602        {
 2603            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2604            let rx = prompt(self, lister, suggested_name, window, cx);
 2605            self.on_prompt_for_new_path = Some(prompt);
 2606            return rx;
 2607        }
 2608
 2609        let (tx, rx) = oneshot::channel();
 2610        cx.spawn_in(window, async move |workspace, cx| {
 2611            let abs_path = workspace.update(cx, |workspace, cx| {
 2612                let relative_to = workspace
 2613                    .most_recent_active_path(cx)
 2614                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2615                    .or_else(|| {
 2616                        let project = workspace.project.read(cx);
 2617                        project.visible_worktrees(cx).find_map(|worktree| {
 2618                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2619                        })
 2620                    })
 2621                    .or_else(std::env::home_dir)
 2622                    .unwrap_or_else(|| PathBuf::from(""));
 2623                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2624            })?;
 2625            let abs_path = match abs_path.await? {
 2626                Ok(path) => path,
 2627                Err(err) => {
 2628                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2629                        workspace.show_portal_error(err.to_string(), cx);
 2630
 2631                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2632                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2633                        workspace.on_prompt_for_new_path = Some(prompt);
 2634                        rx
 2635                    })?;
 2636                    if let Ok(path) = rx.await {
 2637                        tx.send(path).ok();
 2638                    }
 2639                    return anyhow::Ok(());
 2640                }
 2641            };
 2642
 2643            tx.send(abs_path.map(|path| vec![path])).ok();
 2644            anyhow::Ok(())
 2645        })
 2646        .detach();
 2647
 2648        rx
 2649    }
 2650
 2651    pub fn titlebar_item(&self) -> Option<AnyView> {
 2652        self.titlebar_item.clone()
 2653    }
 2654
 2655    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2656    /// When set, git-related operations should use this worktree instead of deriving
 2657    /// the active worktree from the focused file.
 2658    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2659        self.active_worktree_override
 2660    }
 2661
 2662    pub fn set_active_worktree_override(
 2663        &mut self,
 2664        worktree_id: Option<WorktreeId>,
 2665        cx: &mut Context<Self>,
 2666    ) {
 2667        self.active_worktree_override = worktree_id;
 2668        cx.notify();
 2669    }
 2670
 2671    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2672        self.active_worktree_override = None;
 2673        cx.notify();
 2674    }
 2675
 2676    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2677    ///
 2678    /// If the given workspace has a local project, then it will be passed
 2679    /// to the callback. Otherwise, a new empty window will be created.
 2680    pub fn with_local_workspace<T, F>(
 2681        &mut self,
 2682        window: &mut Window,
 2683        cx: &mut Context<Self>,
 2684        callback: F,
 2685    ) -> Task<Result<T>>
 2686    where
 2687        T: 'static,
 2688        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2689    {
 2690        if self.project.read(cx).is_local() {
 2691            Task::ready(Ok(callback(self, window, cx)))
 2692        } else {
 2693            let env = self.project.read(cx).cli_environment(cx);
 2694            let task = Self::new_local(
 2695                Vec::new(),
 2696                self.app_state.clone(),
 2697                None,
 2698                env,
 2699                None,
 2700                true,
 2701                cx,
 2702            );
 2703            cx.spawn_in(window, async move |_vh, cx| {
 2704                let OpenResult {
 2705                    window: multi_workspace_window,
 2706                    ..
 2707                } = task.await?;
 2708                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2709                    let workspace = multi_workspace.workspace().clone();
 2710                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2711                })
 2712            })
 2713        }
 2714    }
 2715
 2716    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2717    ///
 2718    /// If the given workspace has a local project, then it will be passed
 2719    /// to the callback. Otherwise, a new empty window will be created.
 2720    pub fn with_local_or_wsl_workspace<T, F>(
 2721        &mut self,
 2722        window: &mut Window,
 2723        cx: &mut Context<Self>,
 2724        callback: F,
 2725    ) -> Task<Result<T>>
 2726    where
 2727        T: 'static,
 2728        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2729    {
 2730        let project = self.project.read(cx);
 2731        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2732            Task::ready(Ok(callback(self, window, cx)))
 2733        } else {
 2734            let env = self.project.read(cx).cli_environment(cx);
 2735            let task = Self::new_local(
 2736                Vec::new(),
 2737                self.app_state.clone(),
 2738                None,
 2739                env,
 2740                None,
 2741                true,
 2742                cx,
 2743            );
 2744            cx.spawn_in(window, async move |_vh, cx| {
 2745                let OpenResult {
 2746                    window: multi_workspace_window,
 2747                    ..
 2748                } = task.await?;
 2749                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2750                    let workspace = multi_workspace.workspace().clone();
 2751                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2752                })
 2753            })
 2754        }
 2755    }
 2756
 2757    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2758        self.project.read(cx).worktrees(cx)
 2759    }
 2760
 2761    pub fn visible_worktrees<'a>(
 2762        &self,
 2763        cx: &'a App,
 2764    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2765        self.project.read(cx).visible_worktrees(cx)
 2766    }
 2767
 2768    #[cfg(any(test, feature = "test-support"))]
 2769    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2770        let futures = self
 2771            .worktrees(cx)
 2772            .filter_map(|worktree| worktree.read(cx).as_local())
 2773            .map(|worktree| worktree.scan_complete())
 2774            .collect::<Vec<_>>();
 2775        async move {
 2776            for future in futures {
 2777                future.await;
 2778            }
 2779        }
 2780    }
 2781
 2782    pub fn close_global(cx: &mut App) {
 2783        cx.defer(|cx| {
 2784            cx.windows().iter().find(|window| {
 2785                window
 2786                    .update(cx, |_, window, _| {
 2787                        if window.is_window_active() {
 2788                            //This can only get called when the window's project connection has been lost
 2789                            //so we don't need to prompt the user for anything and instead just close the window
 2790                            window.remove_window();
 2791                            true
 2792                        } else {
 2793                            false
 2794                        }
 2795                    })
 2796                    .unwrap_or(false)
 2797            });
 2798        });
 2799    }
 2800
 2801    pub fn move_focused_panel_to_next_position(
 2802        &mut self,
 2803        _: &MoveFocusedPanelToNextPosition,
 2804        window: &mut Window,
 2805        cx: &mut Context<Self>,
 2806    ) {
 2807        let docks = self.all_docks();
 2808        let active_dock = docks
 2809            .into_iter()
 2810            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2811
 2812        if let Some(dock) = active_dock {
 2813            dock.update(cx, |dock, cx| {
 2814                let active_panel = dock
 2815                    .active_panel()
 2816                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2817
 2818                if let Some(panel) = active_panel {
 2819                    panel.move_to_next_position(window, cx);
 2820                }
 2821            })
 2822        }
 2823    }
 2824
 2825    pub fn prepare_to_close(
 2826        &mut self,
 2827        close_intent: CloseIntent,
 2828        window: &mut Window,
 2829        cx: &mut Context<Self>,
 2830    ) -> Task<Result<bool>> {
 2831        let active_call = self.active_global_call();
 2832
 2833        cx.spawn_in(window, async move |this, cx| {
 2834            this.update(cx, |this, _| {
 2835                if close_intent == CloseIntent::CloseWindow {
 2836                    this.removing = true;
 2837                }
 2838            })?;
 2839
 2840            let workspace_count = cx.update(|_window, cx| {
 2841                cx.windows()
 2842                    .iter()
 2843                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 2844                    .count()
 2845            })?;
 2846
 2847            #[cfg(target_os = "macos")]
 2848            let save_last_workspace = false;
 2849
 2850            // On Linux and Windows, closing the last window should restore the last workspace.
 2851            #[cfg(not(target_os = "macos"))]
 2852            let save_last_workspace = {
 2853                let remaining_workspaces = cx.update(|_window, cx| {
 2854                    cx.windows()
 2855                        .iter()
 2856                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 2857                        .filter_map(|multi_workspace| {
 2858                            multi_workspace
 2859                                .update(cx, |multi_workspace, _, cx| {
 2860                                    multi_workspace.workspace().read(cx).removing
 2861                                })
 2862                                .ok()
 2863                        })
 2864                        .filter(|removing| !removing)
 2865                        .count()
 2866                })?;
 2867
 2868                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2869            };
 2870
 2871            if let Some(active_call) = active_call
 2872                && workspace_count == 1
 2873                && cx
 2874                    .update(|_window, cx| active_call.0.is_in_room(cx))
 2875                    .unwrap_or(false)
 2876            {
 2877                if close_intent == CloseIntent::CloseWindow {
 2878                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 2879                    let answer = cx.update(|window, cx| {
 2880                        window.prompt(
 2881                            PromptLevel::Warning,
 2882                            "Do you want to leave the current call?",
 2883                            None,
 2884                            &["Close window and hang up", "Cancel"],
 2885                            cx,
 2886                        )
 2887                    })?;
 2888
 2889                    if answer.await.log_err() == Some(1) {
 2890                        return anyhow::Ok(false);
 2891                    } else {
 2892                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 2893                            task.await.log_err();
 2894                        }
 2895                    }
 2896                }
 2897                if close_intent == CloseIntent::ReplaceWindow {
 2898                    _ = cx.update(|_window, cx| {
 2899                        let multi_workspace = cx
 2900                            .windows()
 2901                            .iter()
 2902                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 2903                            .next()
 2904                            .unwrap();
 2905                        let project = multi_workspace
 2906                            .read(cx)?
 2907                            .workspace()
 2908                            .read(cx)
 2909                            .project
 2910                            .clone();
 2911                        if project.read(cx).is_shared() {
 2912                            active_call.0.unshare_project(project, cx)?;
 2913                        }
 2914                        Ok::<_, anyhow::Error>(())
 2915                    });
 2916                }
 2917            }
 2918
 2919            let save_result = this
 2920                .update_in(cx, |this, window, cx| {
 2921                    this.save_all_internal(SaveIntent::Close, window, cx)
 2922                })?
 2923                .await;
 2924
 2925            // If we're not quitting, but closing, we remove the workspace from
 2926            // the current session.
 2927            if close_intent != CloseIntent::Quit
 2928                && !save_last_workspace
 2929                && save_result.as_ref().is_ok_and(|&res| res)
 2930            {
 2931                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2932                    .await;
 2933            }
 2934
 2935            save_result
 2936        })
 2937    }
 2938
 2939    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2940        self.save_all_internal(
 2941            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2942            window,
 2943            cx,
 2944        )
 2945        .detach_and_log_err(cx);
 2946    }
 2947
 2948    fn send_keystrokes(
 2949        &mut self,
 2950        action: &SendKeystrokes,
 2951        window: &mut Window,
 2952        cx: &mut Context<Self>,
 2953    ) {
 2954        let keystrokes: Vec<Keystroke> = action
 2955            .0
 2956            .split(' ')
 2957            .flat_map(|k| Keystroke::parse(k).log_err())
 2958            .map(|k| {
 2959                cx.keyboard_mapper()
 2960                    .map_key_equivalent(k, false)
 2961                    .inner()
 2962                    .clone()
 2963            })
 2964            .collect();
 2965        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2966    }
 2967
 2968    pub fn send_keystrokes_impl(
 2969        &mut self,
 2970        keystrokes: Vec<Keystroke>,
 2971        window: &mut Window,
 2972        cx: &mut Context<Self>,
 2973    ) -> Shared<Task<()>> {
 2974        let mut state = self.dispatching_keystrokes.borrow_mut();
 2975        if !state.dispatched.insert(keystrokes.clone()) {
 2976            cx.propagate();
 2977            return state.task.clone().unwrap();
 2978        }
 2979
 2980        state.queue.extend(keystrokes);
 2981
 2982        let keystrokes = self.dispatching_keystrokes.clone();
 2983        if state.task.is_none() {
 2984            state.task = Some(
 2985                window
 2986                    .spawn(cx, async move |cx| {
 2987                        // limit to 100 keystrokes to avoid infinite recursion.
 2988                        for _ in 0..100 {
 2989                            let keystroke = {
 2990                                let mut state = keystrokes.borrow_mut();
 2991                                let Some(keystroke) = state.queue.pop_front() else {
 2992                                    state.dispatched.clear();
 2993                                    state.task.take();
 2994                                    return;
 2995                                };
 2996                                keystroke
 2997                            };
 2998                            cx.update(|window, cx| {
 2999                                let focused = window.focused(cx);
 3000                                window.dispatch_keystroke(keystroke.clone(), cx);
 3001                                if window.focused(cx) != focused {
 3002                                    // dispatch_keystroke may cause the focus to change.
 3003                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3004                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3005                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3006                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3007                                    // )
 3008                                    window.draw(cx).clear();
 3009                                }
 3010                            })
 3011                            .ok();
 3012
 3013                            // Yield between synthetic keystrokes so deferred focus and
 3014                            // other effects can settle before dispatching the next key.
 3015                            yield_now().await;
 3016                        }
 3017
 3018                        *keystrokes.borrow_mut() = Default::default();
 3019                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3020                    })
 3021                    .shared(),
 3022            );
 3023        }
 3024        state.task.clone().unwrap()
 3025    }
 3026
 3027    fn save_all_internal(
 3028        &mut self,
 3029        mut save_intent: SaveIntent,
 3030        window: &mut Window,
 3031        cx: &mut Context<Self>,
 3032    ) -> Task<Result<bool>> {
 3033        if self.project.read(cx).is_disconnected(cx) {
 3034            return Task::ready(Ok(true));
 3035        }
 3036        let dirty_items = self
 3037            .panes
 3038            .iter()
 3039            .flat_map(|pane| {
 3040                pane.read(cx).items().filter_map(|item| {
 3041                    if item.is_dirty(cx) {
 3042                        item.tab_content_text(0, cx);
 3043                        Some((pane.downgrade(), item.boxed_clone()))
 3044                    } else {
 3045                        None
 3046                    }
 3047                })
 3048            })
 3049            .collect::<Vec<_>>();
 3050
 3051        let project = self.project.clone();
 3052        cx.spawn_in(window, async move |workspace, cx| {
 3053            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3054                let (serialize_tasks, remaining_dirty_items) =
 3055                    workspace.update_in(cx, |workspace, window, cx| {
 3056                        let mut remaining_dirty_items = Vec::new();
 3057                        let mut serialize_tasks = Vec::new();
 3058                        for (pane, item) in dirty_items {
 3059                            if let Some(task) = item
 3060                                .to_serializable_item_handle(cx)
 3061                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3062                            {
 3063                                serialize_tasks.push(task);
 3064                            } else {
 3065                                remaining_dirty_items.push((pane, item));
 3066                            }
 3067                        }
 3068                        (serialize_tasks, remaining_dirty_items)
 3069                    })?;
 3070
 3071                futures::future::try_join_all(serialize_tasks).await?;
 3072
 3073                if !remaining_dirty_items.is_empty() {
 3074                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3075                }
 3076
 3077                if remaining_dirty_items.len() > 1 {
 3078                    let answer = workspace.update_in(cx, |_, window, cx| {
 3079                        let detail = Pane::file_names_for_prompt(
 3080                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3081                            cx,
 3082                        );
 3083                        window.prompt(
 3084                            PromptLevel::Warning,
 3085                            "Do you want to save all changes in the following files?",
 3086                            Some(&detail),
 3087                            &["Save all", "Discard all", "Cancel"],
 3088                            cx,
 3089                        )
 3090                    })?;
 3091                    match answer.await.log_err() {
 3092                        Some(0) => save_intent = SaveIntent::SaveAll,
 3093                        Some(1) => save_intent = SaveIntent::Skip,
 3094                        Some(2) => return Ok(false),
 3095                        _ => {}
 3096                    }
 3097                }
 3098
 3099                remaining_dirty_items
 3100            } else {
 3101                dirty_items
 3102            };
 3103
 3104            for (pane, item) in dirty_items {
 3105                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3106                    (
 3107                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3108                        item.project_entry_ids(cx),
 3109                    )
 3110                })?;
 3111                if (singleton || !project_entry_ids.is_empty())
 3112                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3113                {
 3114                    return Ok(false);
 3115                }
 3116            }
 3117            Ok(true)
 3118        })
 3119    }
 3120
 3121    pub fn open_workspace_for_paths(
 3122        &mut self,
 3123        replace_current_window: bool,
 3124        paths: Vec<PathBuf>,
 3125        window: &mut Window,
 3126        cx: &mut Context<Self>,
 3127    ) -> Task<Result<Entity<Workspace>>> {
 3128        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 3129        let is_remote = self.project.read(cx).is_via_collab();
 3130        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3131        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3132
 3133        let window_to_replace = if replace_current_window {
 3134            window_handle
 3135        } else if is_remote || has_worktree || has_dirty_items {
 3136            None
 3137        } else {
 3138            window_handle
 3139        };
 3140        let app_state = self.app_state.clone();
 3141
 3142        cx.spawn(async move |_, cx| {
 3143            let OpenResult { workspace, .. } = cx
 3144                .update(|cx| {
 3145                    open_paths(
 3146                        &paths,
 3147                        app_state,
 3148                        OpenOptions {
 3149                            replace_window: window_to_replace,
 3150                            ..Default::default()
 3151                        },
 3152                        cx,
 3153                    )
 3154                })
 3155                .await?;
 3156            Ok(workspace)
 3157        })
 3158    }
 3159
 3160    #[allow(clippy::type_complexity)]
 3161    pub fn open_paths(
 3162        &mut self,
 3163        mut abs_paths: Vec<PathBuf>,
 3164        options: OpenOptions,
 3165        pane: Option<WeakEntity<Pane>>,
 3166        window: &mut Window,
 3167        cx: &mut Context<Self>,
 3168    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3169        let fs = self.app_state.fs.clone();
 3170
 3171        let caller_ordered_abs_paths = abs_paths.clone();
 3172
 3173        // Sort the paths to ensure we add worktrees for parents before their children.
 3174        abs_paths.sort_unstable();
 3175        cx.spawn_in(window, async move |this, cx| {
 3176            let mut tasks = Vec::with_capacity(abs_paths.len());
 3177
 3178            for abs_path in &abs_paths {
 3179                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3180                    OpenVisible::All => Some(true),
 3181                    OpenVisible::None => Some(false),
 3182                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3183                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3184                        Some(None) => Some(true),
 3185                        None => None,
 3186                    },
 3187                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3188                        Some(Some(metadata)) => Some(metadata.is_dir),
 3189                        Some(None) => Some(false),
 3190                        None => None,
 3191                    },
 3192                };
 3193                let project_path = match visible {
 3194                    Some(visible) => match this
 3195                        .update(cx, |this, cx| {
 3196                            Workspace::project_path_for_path(
 3197                                this.project.clone(),
 3198                                abs_path,
 3199                                visible,
 3200                                cx,
 3201                            )
 3202                        })
 3203                        .log_err()
 3204                    {
 3205                        Some(project_path) => project_path.await.log_err(),
 3206                        None => None,
 3207                    },
 3208                    None => None,
 3209                };
 3210
 3211                let this = this.clone();
 3212                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3213                let fs = fs.clone();
 3214                let pane = pane.clone();
 3215                let task = cx.spawn(async move |cx| {
 3216                    let (_worktree, project_path) = project_path?;
 3217                    if fs.is_dir(&abs_path).await {
 3218                        // Opening a directory should not race to update the active entry.
 3219                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3220                        None
 3221                    } else {
 3222                        Some(
 3223                            this.update_in(cx, |this, window, cx| {
 3224                                this.open_path(
 3225                                    project_path,
 3226                                    pane,
 3227                                    options.focus.unwrap_or(true),
 3228                                    window,
 3229                                    cx,
 3230                                )
 3231                            })
 3232                            .ok()?
 3233                            .await,
 3234                        )
 3235                    }
 3236                });
 3237                tasks.push(task);
 3238            }
 3239
 3240            let results = futures::future::join_all(tasks).await;
 3241
 3242            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3243            let mut winner: Option<(PathBuf, bool)> = None;
 3244            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3245                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3246                    if !metadata.is_dir {
 3247                        winner = Some((abs_path, false));
 3248                        break;
 3249                    }
 3250                    if winner.is_none() {
 3251                        winner = Some((abs_path, true));
 3252                    }
 3253                } else if winner.is_none() {
 3254                    winner = Some((abs_path, false));
 3255                }
 3256            }
 3257
 3258            // Compute the winner entry id on the foreground thread and emit once, after all
 3259            // paths finish opening. This avoids races between concurrently-opening paths
 3260            // (directories in particular) and makes the resulting project panel selection
 3261            // deterministic.
 3262            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3263                'emit_winner: {
 3264                    let winner_abs_path: Arc<Path> =
 3265                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3266
 3267                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3268                        OpenVisible::All => true,
 3269                        OpenVisible::None => false,
 3270                        OpenVisible::OnlyFiles => !winner_is_dir,
 3271                        OpenVisible::OnlyDirectories => winner_is_dir,
 3272                    };
 3273
 3274                    let Some(worktree_task) = this
 3275                        .update(cx, |workspace, cx| {
 3276                            workspace.project.update(cx, |project, cx| {
 3277                                project.find_or_create_worktree(
 3278                                    winner_abs_path.as_ref(),
 3279                                    visible,
 3280                                    cx,
 3281                                )
 3282                            })
 3283                        })
 3284                        .ok()
 3285                    else {
 3286                        break 'emit_winner;
 3287                    };
 3288
 3289                    let Ok((worktree, _)) = worktree_task.await else {
 3290                        break 'emit_winner;
 3291                    };
 3292
 3293                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3294                        let worktree = worktree.read(cx);
 3295                        let worktree_abs_path = worktree.abs_path();
 3296                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3297                            worktree.root_entry()
 3298                        } else {
 3299                            winner_abs_path
 3300                                .strip_prefix(worktree_abs_path.as_ref())
 3301                                .ok()
 3302                                .and_then(|relative_path| {
 3303                                    let relative_path =
 3304                                        RelPath::new(relative_path, PathStyle::local())
 3305                                            .log_err()?;
 3306                                    worktree.entry_for_path(&relative_path)
 3307                                })
 3308                        }?;
 3309                        Some(entry.id)
 3310                    }) else {
 3311                        break 'emit_winner;
 3312                    };
 3313
 3314                    this.update(cx, |workspace, cx| {
 3315                        workspace.project.update(cx, |_, cx| {
 3316                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3317                        });
 3318                    })
 3319                    .ok();
 3320                }
 3321            }
 3322
 3323            results
 3324        })
 3325    }
 3326
 3327    pub fn open_resolved_path(
 3328        &mut self,
 3329        path: ResolvedPath,
 3330        window: &mut Window,
 3331        cx: &mut Context<Self>,
 3332    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3333        match path {
 3334            ResolvedPath::ProjectPath { project_path, .. } => {
 3335                self.open_path(project_path, None, true, window, cx)
 3336            }
 3337            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3338                PathBuf::from(path),
 3339                OpenOptions {
 3340                    visible: Some(OpenVisible::None),
 3341                    ..Default::default()
 3342                },
 3343                window,
 3344                cx,
 3345            ),
 3346        }
 3347    }
 3348
 3349    pub fn absolute_path_of_worktree(
 3350        &self,
 3351        worktree_id: WorktreeId,
 3352        cx: &mut Context<Self>,
 3353    ) -> Option<PathBuf> {
 3354        self.project
 3355            .read(cx)
 3356            .worktree_for_id(worktree_id, cx)
 3357            // TODO: use `abs_path` or `root_dir`
 3358            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3359    }
 3360
 3361    fn add_folder_to_project(
 3362        &mut self,
 3363        _: &AddFolderToProject,
 3364        window: &mut Window,
 3365        cx: &mut Context<Self>,
 3366    ) {
 3367        let project = self.project.read(cx);
 3368        if project.is_via_collab() {
 3369            self.show_error(
 3370                &anyhow!("You cannot add folders to someone else's project"),
 3371                cx,
 3372            );
 3373            return;
 3374        }
 3375        let paths = self.prompt_for_open_path(
 3376            PathPromptOptions {
 3377                files: false,
 3378                directories: true,
 3379                multiple: true,
 3380                prompt: None,
 3381            },
 3382            DirectoryLister::Project(self.project.clone()),
 3383            window,
 3384            cx,
 3385        );
 3386        cx.spawn_in(window, async move |this, cx| {
 3387            if let Some(paths) = paths.await.log_err().flatten() {
 3388                let results = this
 3389                    .update_in(cx, |this, window, cx| {
 3390                        this.open_paths(
 3391                            paths,
 3392                            OpenOptions {
 3393                                visible: Some(OpenVisible::All),
 3394                                ..Default::default()
 3395                            },
 3396                            None,
 3397                            window,
 3398                            cx,
 3399                        )
 3400                    })?
 3401                    .await;
 3402                for result in results.into_iter().flatten() {
 3403                    result.log_err();
 3404                }
 3405            }
 3406            anyhow::Ok(())
 3407        })
 3408        .detach_and_log_err(cx);
 3409    }
 3410
 3411    pub fn project_path_for_path(
 3412        project: Entity<Project>,
 3413        abs_path: &Path,
 3414        visible: bool,
 3415        cx: &mut App,
 3416    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3417        let entry = project.update(cx, |project, cx| {
 3418            project.find_or_create_worktree(abs_path, visible, cx)
 3419        });
 3420        cx.spawn(async move |cx| {
 3421            let (worktree, path) = entry.await?;
 3422            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3423            Ok((worktree, ProjectPath { worktree_id, path }))
 3424        })
 3425    }
 3426
 3427    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3428        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3429    }
 3430
 3431    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3432        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3433    }
 3434
 3435    pub fn items_of_type<'a, T: Item>(
 3436        &'a self,
 3437        cx: &'a App,
 3438    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3439        self.panes
 3440            .iter()
 3441            .flat_map(|pane| pane.read(cx).items_of_type())
 3442    }
 3443
 3444    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3445        self.active_pane().read(cx).active_item()
 3446    }
 3447
 3448    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3449        let item = self.active_item(cx)?;
 3450        item.to_any_view().downcast::<I>().ok()
 3451    }
 3452
 3453    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3454        self.active_item(cx).and_then(|item| item.project_path(cx))
 3455    }
 3456
 3457    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3458        self.recent_navigation_history_iter(cx)
 3459            .filter_map(|(path, abs_path)| {
 3460                let worktree = self
 3461                    .project
 3462                    .read(cx)
 3463                    .worktree_for_id(path.worktree_id, cx)?;
 3464                if worktree.read(cx).is_visible() {
 3465                    abs_path
 3466                } else {
 3467                    None
 3468                }
 3469            })
 3470            .next()
 3471    }
 3472
 3473    pub fn save_active_item(
 3474        &mut self,
 3475        save_intent: SaveIntent,
 3476        window: &mut Window,
 3477        cx: &mut App,
 3478    ) -> Task<Result<()>> {
 3479        let project = self.project.clone();
 3480        let pane = self.active_pane();
 3481        let item = pane.read(cx).active_item();
 3482        let pane = pane.downgrade();
 3483
 3484        window.spawn(cx, async move |cx| {
 3485            if let Some(item) = item {
 3486                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3487                    .await
 3488                    .map(|_| ())
 3489            } else {
 3490                Ok(())
 3491            }
 3492        })
 3493    }
 3494
 3495    pub fn close_inactive_items_and_panes(
 3496        &mut self,
 3497        action: &CloseInactiveTabsAndPanes,
 3498        window: &mut Window,
 3499        cx: &mut Context<Self>,
 3500    ) {
 3501        if let Some(task) = self.close_all_internal(
 3502            true,
 3503            action.save_intent.unwrap_or(SaveIntent::Close),
 3504            window,
 3505            cx,
 3506        ) {
 3507            task.detach_and_log_err(cx)
 3508        }
 3509    }
 3510
 3511    pub fn close_all_items_and_panes(
 3512        &mut self,
 3513        action: &CloseAllItemsAndPanes,
 3514        window: &mut Window,
 3515        cx: &mut Context<Self>,
 3516    ) {
 3517        if let Some(task) = self.close_all_internal(
 3518            false,
 3519            action.save_intent.unwrap_or(SaveIntent::Close),
 3520            window,
 3521            cx,
 3522        ) {
 3523            task.detach_and_log_err(cx)
 3524        }
 3525    }
 3526
 3527    /// Closes the active item across all panes.
 3528    pub fn close_item_in_all_panes(
 3529        &mut self,
 3530        action: &CloseItemInAllPanes,
 3531        window: &mut Window,
 3532        cx: &mut Context<Self>,
 3533    ) {
 3534        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3535            return;
 3536        };
 3537
 3538        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3539        let close_pinned = action.close_pinned;
 3540
 3541        if let Some(project_path) = active_item.project_path(cx) {
 3542            self.close_items_with_project_path(
 3543                &project_path,
 3544                save_intent,
 3545                close_pinned,
 3546                window,
 3547                cx,
 3548            );
 3549        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3550            let item_id = active_item.item_id();
 3551            self.active_pane().update(cx, |pane, cx| {
 3552                pane.close_item_by_id(item_id, save_intent, window, cx)
 3553                    .detach_and_log_err(cx);
 3554            });
 3555        }
 3556    }
 3557
 3558    /// Closes all items with the given project path across all panes.
 3559    pub fn close_items_with_project_path(
 3560        &mut self,
 3561        project_path: &ProjectPath,
 3562        save_intent: SaveIntent,
 3563        close_pinned: bool,
 3564        window: &mut Window,
 3565        cx: &mut Context<Self>,
 3566    ) {
 3567        let panes = self.panes().to_vec();
 3568        for pane in panes {
 3569            pane.update(cx, |pane, cx| {
 3570                pane.close_items_for_project_path(
 3571                    project_path,
 3572                    save_intent,
 3573                    close_pinned,
 3574                    window,
 3575                    cx,
 3576                )
 3577                .detach_and_log_err(cx);
 3578            });
 3579        }
 3580    }
 3581
 3582    fn close_all_internal(
 3583        &mut self,
 3584        retain_active_pane: bool,
 3585        save_intent: SaveIntent,
 3586        window: &mut Window,
 3587        cx: &mut Context<Self>,
 3588    ) -> Option<Task<Result<()>>> {
 3589        let current_pane = self.active_pane();
 3590
 3591        let mut tasks = Vec::new();
 3592
 3593        if retain_active_pane {
 3594            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3595                pane.close_other_items(
 3596                    &CloseOtherItems {
 3597                        save_intent: None,
 3598                        close_pinned: false,
 3599                    },
 3600                    None,
 3601                    window,
 3602                    cx,
 3603                )
 3604            });
 3605
 3606            tasks.push(current_pane_close);
 3607        }
 3608
 3609        for pane in self.panes() {
 3610            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3611                continue;
 3612            }
 3613
 3614            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3615                pane.close_all_items(
 3616                    &CloseAllItems {
 3617                        save_intent: Some(save_intent),
 3618                        close_pinned: false,
 3619                    },
 3620                    window,
 3621                    cx,
 3622                )
 3623            });
 3624
 3625            tasks.push(close_pane_items)
 3626        }
 3627
 3628        if tasks.is_empty() {
 3629            None
 3630        } else {
 3631            Some(cx.spawn_in(window, async move |_, _| {
 3632                for task in tasks {
 3633                    task.await?
 3634                }
 3635                Ok(())
 3636            }))
 3637        }
 3638    }
 3639
 3640    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3641        self.dock_at_position(position).read(cx).is_open()
 3642    }
 3643
 3644    pub fn toggle_dock(
 3645        &mut self,
 3646        dock_side: DockPosition,
 3647        window: &mut Window,
 3648        cx: &mut Context<Self>,
 3649    ) {
 3650        let mut focus_center = false;
 3651        let mut reveal_dock = false;
 3652
 3653        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3654        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3655
 3656        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3657            telemetry::event!(
 3658                "Panel Button Clicked",
 3659                name = panel.persistent_name(),
 3660                toggle_state = !was_visible
 3661            );
 3662        }
 3663        if was_visible {
 3664            self.save_open_dock_positions(cx);
 3665        }
 3666
 3667        let dock = self.dock_at_position(dock_side);
 3668        dock.update(cx, |dock, cx| {
 3669            dock.set_open(!was_visible, window, cx);
 3670
 3671            if dock.active_panel().is_none() {
 3672                let Some(panel_ix) = dock
 3673                    .first_enabled_panel_idx(cx)
 3674                    .log_with_level(log::Level::Info)
 3675                else {
 3676                    return;
 3677                };
 3678                dock.activate_panel(panel_ix, window, cx);
 3679            }
 3680
 3681            if let Some(active_panel) = dock.active_panel() {
 3682                if was_visible {
 3683                    if active_panel
 3684                        .panel_focus_handle(cx)
 3685                        .contains_focused(window, cx)
 3686                    {
 3687                        focus_center = true;
 3688                    }
 3689                } else {
 3690                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3691                    window.focus(focus_handle, cx);
 3692                    reveal_dock = true;
 3693                }
 3694            }
 3695        });
 3696
 3697        if reveal_dock {
 3698            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3699        }
 3700
 3701        if focus_center {
 3702            self.active_pane
 3703                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3704        }
 3705
 3706        cx.notify();
 3707        self.serialize_workspace(window, cx);
 3708    }
 3709
 3710    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3711        self.all_docks().into_iter().find(|&dock| {
 3712            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3713        })
 3714    }
 3715
 3716    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3717        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3718            self.save_open_dock_positions(cx);
 3719            dock.update(cx, |dock, cx| {
 3720                dock.set_open(false, window, cx);
 3721            });
 3722            return true;
 3723        }
 3724        false
 3725    }
 3726
 3727    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3728        self.save_open_dock_positions(cx);
 3729        for dock in self.all_docks() {
 3730            dock.update(cx, |dock, cx| {
 3731                dock.set_open(false, window, cx);
 3732            });
 3733        }
 3734
 3735        cx.focus_self(window);
 3736        cx.notify();
 3737        self.serialize_workspace(window, cx);
 3738    }
 3739
 3740    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3741        self.all_docks()
 3742            .into_iter()
 3743            .filter_map(|dock| {
 3744                let dock_ref = dock.read(cx);
 3745                if dock_ref.is_open() {
 3746                    Some(dock_ref.position())
 3747                } else {
 3748                    None
 3749                }
 3750            })
 3751            .collect()
 3752    }
 3753
 3754    /// Saves the positions of currently open docks.
 3755    ///
 3756    /// Updates `last_open_dock_positions` with positions of all currently open
 3757    /// docks, to later be restored by the 'Toggle All Docks' action.
 3758    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3759        let open_dock_positions = self.get_open_dock_positions(cx);
 3760        if !open_dock_positions.is_empty() {
 3761            self.last_open_dock_positions = open_dock_positions;
 3762        }
 3763    }
 3764
 3765    /// Toggles all docks between open and closed states.
 3766    ///
 3767    /// If any docks are open, closes all and remembers their positions. If all
 3768    /// docks are closed, restores the last remembered dock configuration.
 3769    fn toggle_all_docks(
 3770        &mut self,
 3771        _: &ToggleAllDocks,
 3772        window: &mut Window,
 3773        cx: &mut Context<Self>,
 3774    ) {
 3775        let open_dock_positions = self.get_open_dock_positions(cx);
 3776
 3777        if !open_dock_positions.is_empty() {
 3778            self.close_all_docks(window, cx);
 3779        } else if !self.last_open_dock_positions.is_empty() {
 3780            self.restore_last_open_docks(window, cx);
 3781        }
 3782    }
 3783
 3784    /// Reopens docks from the most recently remembered configuration.
 3785    ///
 3786    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3787    /// and clears the stored positions.
 3788    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3789        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3790
 3791        for position in positions_to_open {
 3792            let dock = self.dock_at_position(position);
 3793            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3794        }
 3795
 3796        cx.focus_self(window);
 3797        cx.notify();
 3798        self.serialize_workspace(window, cx);
 3799    }
 3800
 3801    /// Transfer focus to the panel of the given type.
 3802    pub fn focus_panel<T: Panel>(
 3803        &mut self,
 3804        window: &mut Window,
 3805        cx: &mut Context<Self>,
 3806    ) -> Option<Entity<T>> {
 3807        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 3808        panel.to_any().downcast().ok()
 3809    }
 3810
 3811    /// Focus the panel of the given type if it isn't already focused. If it is
 3812    /// already focused, then transfer focus back to the workspace center.
 3813    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 3814    /// panel when transferring focus back to the center.
 3815    pub fn toggle_panel_focus<T: Panel>(
 3816        &mut self,
 3817        window: &mut Window,
 3818        cx: &mut Context<Self>,
 3819    ) -> bool {
 3820        let mut did_focus_panel = false;
 3821        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 3822            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3823            did_focus_panel
 3824        });
 3825
 3826        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 3827            self.close_panel::<T>(window, cx);
 3828        }
 3829
 3830        telemetry::event!(
 3831            "Panel Button Clicked",
 3832            name = T::persistent_name(),
 3833            toggle_state = did_focus_panel
 3834        );
 3835
 3836        did_focus_panel
 3837    }
 3838
 3839    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3840        if let Some(item) = self.active_item(cx) {
 3841            item.item_focus_handle(cx).focus(window, cx);
 3842        } else {
 3843            log::error!("Could not find a focus target when switching focus to the center panes",);
 3844        }
 3845    }
 3846
 3847    pub fn activate_panel_for_proto_id(
 3848        &mut self,
 3849        panel_id: PanelId,
 3850        window: &mut Window,
 3851        cx: &mut Context<Self>,
 3852    ) -> Option<Arc<dyn PanelHandle>> {
 3853        let mut panel = None;
 3854        for dock in self.all_docks() {
 3855            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3856                panel = dock.update(cx, |dock, cx| {
 3857                    dock.activate_panel(panel_index, window, cx);
 3858                    dock.set_open(true, window, cx);
 3859                    dock.active_panel().cloned()
 3860                });
 3861                break;
 3862            }
 3863        }
 3864
 3865        if panel.is_some() {
 3866            cx.notify();
 3867            self.serialize_workspace(window, cx);
 3868        }
 3869
 3870        panel
 3871    }
 3872
 3873    /// Focus or unfocus the given panel type, depending on the given callback.
 3874    fn focus_or_unfocus_panel<T: Panel>(
 3875        &mut self,
 3876        window: &mut Window,
 3877        cx: &mut Context<Self>,
 3878        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3879    ) -> Option<Arc<dyn PanelHandle>> {
 3880        let mut result_panel = None;
 3881        let mut serialize = false;
 3882        for dock in self.all_docks() {
 3883            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3884                let mut focus_center = false;
 3885                let panel = dock.update(cx, |dock, cx| {
 3886                    dock.activate_panel(panel_index, window, cx);
 3887
 3888                    let panel = dock.active_panel().cloned();
 3889                    if let Some(panel) = panel.as_ref() {
 3890                        if should_focus(&**panel, window, cx) {
 3891                            dock.set_open(true, window, cx);
 3892                            panel.panel_focus_handle(cx).focus(window, cx);
 3893                        } else {
 3894                            focus_center = true;
 3895                        }
 3896                    }
 3897                    panel
 3898                });
 3899
 3900                if focus_center {
 3901                    self.active_pane
 3902                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3903                }
 3904
 3905                result_panel = panel;
 3906                serialize = true;
 3907                break;
 3908            }
 3909        }
 3910
 3911        if serialize {
 3912            self.serialize_workspace(window, cx);
 3913        }
 3914
 3915        cx.notify();
 3916        result_panel
 3917    }
 3918
 3919    /// Open the panel of the given type
 3920    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3921        for dock in self.all_docks() {
 3922            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3923                dock.update(cx, |dock, cx| {
 3924                    dock.activate_panel(panel_index, window, cx);
 3925                    dock.set_open(true, window, cx);
 3926                });
 3927            }
 3928        }
 3929    }
 3930
 3931    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3932        for dock in self.all_docks().iter() {
 3933            dock.update(cx, |dock, cx| {
 3934                if dock.panel::<T>().is_some() {
 3935                    dock.set_open(false, window, cx)
 3936                }
 3937            })
 3938        }
 3939    }
 3940
 3941    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3942        self.all_docks()
 3943            .iter()
 3944            .find_map(|dock| dock.read(cx).panel::<T>())
 3945    }
 3946
 3947    fn dismiss_zoomed_items_to_reveal(
 3948        &mut self,
 3949        dock_to_reveal: Option<DockPosition>,
 3950        window: &mut Window,
 3951        cx: &mut Context<Self>,
 3952    ) {
 3953        // If a center pane is zoomed, unzoom it.
 3954        for pane in &self.panes {
 3955            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3956                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3957            }
 3958        }
 3959
 3960        // If another dock is zoomed, hide it.
 3961        let mut focus_center = false;
 3962        for dock in self.all_docks() {
 3963            dock.update(cx, |dock, cx| {
 3964                if Some(dock.position()) != dock_to_reveal
 3965                    && let Some(panel) = dock.active_panel()
 3966                    && panel.is_zoomed(window, cx)
 3967                {
 3968                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3969                    dock.set_open(false, window, cx);
 3970                }
 3971            });
 3972        }
 3973
 3974        if focus_center {
 3975            self.active_pane
 3976                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3977        }
 3978
 3979        if self.zoomed_position != dock_to_reveal {
 3980            self.zoomed = None;
 3981            self.zoomed_position = None;
 3982            cx.emit(Event::ZoomChanged);
 3983        }
 3984
 3985        cx.notify();
 3986    }
 3987
 3988    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3989        let pane = cx.new(|cx| {
 3990            let mut pane = Pane::new(
 3991                self.weak_handle(),
 3992                self.project.clone(),
 3993                self.pane_history_timestamp.clone(),
 3994                None,
 3995                NewFile.boxed_clone(),
 3996                true,
 3997                window,
 3998                cx,
 3999            );
 4000            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4001            pane
 4002        });
 4003        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4004            .detach();
 4005        self.panes.push(pane.clone());
 4006
 4007        window.focus(&pane.focus_handle(cx), cx);
 4008
 4009        cx.emit(Event::PaneAdded(pane.clone()));
 4010        pane
 4011    }
 4012
 4013    pub fn add_item_to_center(
 4014        &mut self,
 4015        item: Box<dyn ItemHandle>,
 4016        window: &mut Window,
 4017        cx: &mut Context<Self>,
 4018    ) -> bool {
 4019        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4020            if let Some(center_pane) = center_pane.upgrade() {
 4021                center_pane.update(cx, |pane, cx| {
 4022                    pane.add_item(item, true, true, None, window, cx)
 4023                });
 4024                true
 4025            } else {
 4026                false
 4027            }
 4028        } else {
 4029            false
 4030        }
 4031    }
 4032
 4033    pub fn add_item_to_active_pane(
 4034        &mut self,
 4035        item: Box<dyn ItemHandle>,
 4036        destination_index: Option<usize>,
 4037        focus_item: bool,
 4038        window: &mut Window,
 4039        cx: &mut App,
 4040    ) {
 4041        self.add_item(
 4042            self.active_pane.clone(),
 4043            item,
 4044            destination_index,
 4045            false,
 4046            focus_item,
 4047            window,
 4048            cx,
 4049        )
 4050    }
 4051
 4052    pub fn add_item(
 4053        &mut self,
 4054        pane: Entity<Pane>,
 4055        item: Box<dyn ItemHandle>,
 4056        destination_index: Option<usize>,
 4057        activate_pane: bool,
 4058        focus_item: bool,
 4059        window: &mut Window,
 4060        cx: &mut App,
 4061    ) {
 4062        pane.update(cx, |pane, cx| {
 4063            pane.add_item(
 4064                item,
 4065                activate_pane,
 4066                focus_item,
 4067                destination_index,
 4068                window,
 4069                cx,
 4070            )
 4071        });
 4072    }
 4073
 4074    pub fn split_item(
 4075        &mut self,
 4076        split_direction: SplitDirection,
 4077        item: Box<dyn ItemHandle>,
 4078        window: &mut Window,
 4079        cx: &mut Context<Self>,
 4080    ) {
 4081        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4082        self.add_item(new_pane, item, None, true, true, window, cx);
 4083    }
 4084
 4085    pub fn open_abs_path(
 4086        &mut self,
 4087        abs_path: PathBuf,
 4088        options: OpenOptions,
 4089        window: &mut Window,
 4090        cx: &mut Context<Self>,
 4091    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4092        cx.spawn_in(window, async move |workspace, cx| {
 4093            let open_paths_task_result = workspace
 4094                .update_in(cx, |workspace, window, cx| {
 4095                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4096                })
 4097                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4098                .await;
 4099            anyhow::ensure!(
 4100                open_paths_task_result.len() == 1,
 4101                "open abs path {abs_path:?} task returned incorrect number of results"
 4102            );
 4103            match open_paths_task_result
 4104                .into_iter()
 4105                .next()
 4106                .expect("ensured single task result")
 4107            {
 4108                Some(open_result) => {
 4109                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4110                }
 4111                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4112            }
 4113        })
 4114    }
 4115
 4116    pub fn split_abs_path(
 4117        &mut self,
 4118        abs_path: PathBuf,
 4119        visible: bool,
 4120        window: &mut Window,
 4121        cx: &mut Context<Self>,
 4122    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4123        let project_path_task =
 4124            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4125        cx.spawn_in(window, async move |this, cx| {
 4126            let (_, path) = project_path_task.await?;
 4127            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4128                .await
 4129        })
 4130    }
 4131
 4132    pub fn open_path(
 4133        &mut self,
 4134        path: impl Into<ProjectPath>,
 4135        pane: Option<WeakEntity<Pane>>,
 4136        focus_item: bool,
 4137        window: &mut Window,
 4138        cx: &mut App,
 4139    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4140        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4141    }
 4142
 4143    pub fn open_path_preview(
 4144        &mut self,
 4145        path: impl Into<ProjectPath>,
 4146        pane: Option<WeakEntity<Pane>>,
 4147        focus_item: bool,
 4148        allow_preview: bool,
 4149        activate: bool,
 4150        window: &mut Window,
 4151        cx: &mut App,
 4152    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4153        let pane = pane.unwrap_or_else(|| {
 4154            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4155                self.panes
 4156                    .first()
 4157                    .expect("There must be an active pane")
 4158                    .downgrade()
 4159            })
 4160        });
 4161
 4162        let project_path = path.into();
 4163        let task = self.load_path(project_path.clone(), window, cx);
 4164        window.spawn(cx, async move |cx| {
 4165            let (project_entry_id, build_item) = task.await?;
 4166
 4167            pane.update_in(cx, |pane, window, cx| {
 4168                pane.open_item(
 4169                    project_entry_id,
 4170                    project_path,
 4171                    focus_item,
 4172                    allow_preview,
 4173                    activate,
 4174                    None,
 4175                    window,
 4176                    cx,
 4177                    build_item,
 4178                )
 4179            })
 4180        })
 4181    }
 4182
 4183    pub fn split_path(
 4184        &mut self,
 4185        path: impl Into<ProjectPath>,
 4186        window: &mut Window,
 4187        cx: &mut Context<Self>,
 4188    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4189        self.split_path_preview(path, false, None, window, cx)
 4190    }
 4191
 4192    pub fn split_path_preview(
 4193        &mut self,
 4194        path: impl Into<ProjectPath>,
 4195        allow_preview: bool,
 4196        split_direction: Option<SplitDirection>,
 4197        window: &mut Window,
 4198        cx: &mut Context<Self>,
 4199    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4200        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4201            self.panes
 4202                .first()
 4203                .expect("There must be an active pane")
 4204                .downgrade()
 4205        });
 4206
 4207        if let Member::Pane(center_pane) = &self.center.root
 4208            && center_pane.read(cx).items_len() == 0
 4209        {
 4210            return self.open_path(path, Some(pane), true, window, cx);
 4211        }
 4212
 4213        let project_path = path.into();
 4214        let task = self.load_path(project_path.clone(), window, cx);
 4215        cx.spawn_in(window, async move |this, cx| {
 4216            let (project_entry_id, build_item) = task.await?;
 4217            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4218                let pane = pane.upgrade()?;
 4219                let new_pane = this.split_pane(
 4220                    pane,
 4221                    split_direction.unwrap_or(SplitDirection::Right),
 4222                    window,
 4223                    cx,
 4224                );
 4225                new_pane.update(cx, |new_pane, cx| {
 4226                    Some(new_pane.open_item(
 4227                        project_entry_id,
 4228                        project_path,
 4229                        true,
 4230                        allow_preview,
 4231                        true,
 4232                        None,
 4233                        window,
 4234                        cx,
 4235                        build_item,
 4236                    ))
 4237                })
 4238            })
 4239            .map(|option| option.context("pane was dropped"))?
 4240        })
 4241    }
 4242
 4243    fn load_path(
 4244        &mut self,
 4245        path: ProjectPath,
 4246        window: &mut Window,
 4247        cx: &mut App,
 4248    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4249        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4250        registry.open_path(self.project(), &path, window, cx)
 4251    }
 4252
 4253    pub fn find_project_item<T>(
 4254        &self,
 4255        pane: &Entity<Pane>,
 4256        project_item: &Entity<T::Item>,
 4257        cx: &App,
 4258    ) -> Option<Entity<T>>
 4259    where
 4260        T: ProjectItem,
 4261    {
 4262        use project::ProjectItem as _;
 4263        let project_item = project_item.read(cx);
 4264        let entry_id = project_item.entry_id(cx);
 4265        let project_path = project_item.project_path(cx);
 4266
 4267        let mut item = None;
 4268        if let Some(entry_id) = entry_id {
 4269            item = pane.read(cx).item_for_entry(entry_id, cx);
 4270        }
 4271        if item.is_none()
 4272            && let Some(project_path) = project_path
 4273        {
 4274            item = pane.read(cx).item_for_path(project_path, cx);
 4275        }
 4276
 4277        item.and_then(|item| item.downcast::<T>())
 4278    }
 4279
 4280    pub fn is_project_item_open<T>(
 4281        &self,
 4282        pane: &Entity<Pane>,
 4283        project_item: &Entity<T::Item>,
 4284        cx: &App,
 4285    ) -> bool
 4286    where
 4287        T: ProjectItem,
 4288    {
 4289        self.find_project_item::<T>(pane, project_item, cx)
 4290            .is_some()
 4291    }
 4292
 4293    pub fn open_project_item<T>(
 4294        &mut self,
 4295        pane: Entity<Pane>,
 4296        project_item: Entity<T::Item>,
 4297        activate_pane: bool,
 4298        focus_item: bool,
 4299        keep_old_preview: bool,
 4300        allow_new_preview: bool,
 4301        window: &mut Window,
 4302        cx: &mut Context<Self>,
 4303    ) -> Entity<T>
 4304    where
 4305        T: ProjectItem,
 4306    {
 4307        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4308
 4309        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4310            if !keep_old_preview
 4311                && let Some(old_id) = old_item_id
 4312                && old_id != item.item_id()
 4313            {
 4314                // switching to a different item, so unpreview old active item
 4315                pane.update(cx, |pane, _| {
 4316                    pane.unpreview_item_if_preview(old_id);
 4317                });
 4318            }
 4319
 4320            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4321            if !allow_new_preview {
 4322                pane.update(cx, |pane, _| {
 4323                    pane.unpreview_item_if_preview(item.item_id());
 4324                });
 4325            }
 4326            return item;
 4327        }
 4328
 4329        let item = pane.update(cx, |pane, cx| {
 4330            cx.new(|cx| {
 4331                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4332            })
 4333        });
 4334        let mut destination_index = None;
 4335        pane.update(cx, |pane, cx| {
 4336            if !keep_old_preview && let Some(old_id) = old_item_id {
 4337                pane.unpreview_item_if_preview(old_id);
 4338            }
 4339            if allow_new_preview {
 4340                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4341            }
 4342        });
 4343
 4344        self.add_item(
 4345            pane,
 4346            Box::new(item.clone()),
 4347            destination_index,
 4348            activate_pane,
 4349            focus_item,
 4350            window,
 4351            cx,
 4352        );
 4353        item
 4354    }
 4355
 4356    pub fn open_shared_screen(
 4357        &mut self,
 4358        peer_id: PeerId,
 4359        window: &mut Window,
 4360        cx: &mut Context<Self>,
 4361    ) {
 4362        if let Some(shared_screen) =
 4363            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4364        {
 4365            self.active_pane.update(cx, |pane, cx| {
 4366                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4367            });
 4368        }
 4369    }
 4370
 4371    pub fn activate_item(
 4372        &mut self,
 4373        item: &dyn ItemHandle,
 4374        activate_pane: bool,
 4375        focus_item: bool,
 4376        window: &mut Window,
 4377        cx: &mut App,
 4378    ) -> bool {
 4379        let result = self.panes.iter().find_map(|pane| {
 4380            pane.read(cx)
 4381                .index_for_item(item)
 4382                .map(|ix| (pane.clone(), ix))
 4383        });
 4384        if let Some((pane, ix)) = result {
 4385            pane.update(cx, |pane, cx| {
 4386                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4387            });
 4388            true
 4389        } else {
 4390            false
 4391        }
 4392    }
 4393
 4394    fn activate_pane_at_index(
 4395        &mut self,
 4396        action: &ActivatePane,
 4397        window: &mut Window,
 4398        cx: &mut Context<Self>,
 4399    ) {
 4400        let panes = self.center.panes();
 4401        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4402            window.focus(&pane.focus_handle(cx), cx);
 4403        } else {
 4404            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4405                .detach();
 4406        }
 4407    }
 4408
 4409    fn move_item_to_pane_at_index(
 4410        &mut self,
 4411        action: &MoveItemToPane,
 4412        window: &mut Window,
 4413        cx: &mut Context<Self>,
 4414    ) {
 4415        let panes = self.center.panes();
 4416        let destination = match panes.get(action.destination) {
 4417            Some(&destination) => destination.clone(),
 4418            None => {
 4419                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4420                    return;
 4421                }
 4422                let direction = SplitDirection::Right;
 4423                let split_off_pane = self
 4424                    .find_pane_in_direction(direction, cx)
 4425                    .unwrap_or_else(|| self.active_pane.clone());
 4426                let new_pane = self.add_pane(window, cx);
 4427                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4428                new_pane
 4429            }
 4430        };
 4431
 4432        if action.clone {
 4433            if self
 4434                .active_pane
 4435                .read(cx)
 4436                .active_item()
 4437                .is_some_and(|item| item.can_split(cx))
 4438            {
 4439                clone_active_item(
 4440                    self.database_id(),
 4441                    &self.active_pane,
 4442                    &destination,
 4443                    action.focus,
 4444                    window,
 4445                    cx,
 4446                );
 4447                return;
 4448            }
 4449        }
 4450        move_active_item(
 4451            &self.active_pane,
 4452            &destination,
 4453            action.focus,
 4454            true,
 4455            window,
 4456            cx,
 4457        )
 4458    }
 4459
 4460    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4461        let panes = self.center.panes();
 4462        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4463            let next_ix = (ix + 1) % panes.len();
 4464            let next_pane = panes[next_ix].clone();
 4465            window.focus(&next_pane.focus_handle(cx), cx);
 4466        }
 4467    }
 4468
 4469    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4470        let panes = self.center.panes();
 4471        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4472            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4473            let prev_pane = panes[prev_ix].clone();
 4474            window.focus(&prev_pane.focus_handle(cx), cx);
 4475        }
 4476    }
 4477
 4478    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4479        let last_pane = self.center.last_pane();
 4480        window.focus(&last_pane.focus_handle(cx), cx);
 4481    }
 4482
 4483    pub fn activate_pane_in_direction(
 4484        &mut self,
 4485        direction: SplitDirection,
 4486        window: &mut Window,
 4487        cx: &mut App,
 4488    ) {
 4489        use ActivateInDirectionTarget as Target;
 4490        enum Origin {
 4491            Sidebar,
 4492            LeftDock,
 4493            RightDock,
 4494            BottomDock,
 4495            Center,
 4496        }
 4497
 4498        let origin: Origin = if self
 4499            .sidebar_focus_handle
 4500            .as_ref()
 4501            .is_some_and(|h| h.contains_focused(window, cx))
 4502        {
 4503            Origin::Sidebar
 4504        } else {
 4505            [
 4506                (&self.left_dock, Origin::LeftDock),
 4507                (&self.right_dock, Origin::RightDock),
 4508                (&self.bottom_dock, Origin::BottomDock),
 4509            ]
 4510            .into_iter()
 4511            .find_map(|(dock, origin)| {
 4512                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4513                    Some(origin)
 4514                } else {
 4515                    None
 4516                }
 4517            })
 4518            .unwrap_or(Origin::Center)
 4519        };
 4520
 4521        let get_last_active_pane = || {
 4522            let pane = self
 4523                .last_active_center_pane
 4524                .clone()
 4525                .unwrap_or_else(|| {
 4526                    self.panes
 4527                        .first()
 4528                        .expect("There must be an active pane")
 4529                        .downgrade()
 4530                })
 4531                .upgrade()?;
 4532            (pane.read(cx).items_len() != 0).then_some(pane)
 4533        };
 4534
 4535        let try_dock =
 4536            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4537
 4538        let sidebar_target = self
 4539            .sidebar_focus_handle
 4540            .as_ref()
 4541            .map(|h| Target::Sidebar(h.clone()));
 4542
 4543        let target = match (origin, direction) {
 4544            // From the sidebar, only Right navigates into the workspace.
 4545            (Origin::Sidebar, SplitDirection::Right) => try_dock(&self.left_dock)
 4546                .or_else(|| get_last_active_pane().map(Target::Pane))
 4547                .or_else(|| try_dock(&self.bottom_dock))
 4548                .or_else(|| try_dock(&self.right_dock)),
 4549
 4550            (Origin::Sidebar, _) => None,
 4551
 4552            // We're in the center, so we first try to go to a different pane,
 4553            // otherwise try to go to a dock.
 4554            (Origin::Center, direction) => {
 4555                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4556                    Some(Target::Pane(pane))
 4557                } else {
 4558                    match direction {
 4559                        SplitDirection::Up => None,
 4560                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4561                        SplitDirection::Left => try_dock(&self.left_dock).or(sidebar_target),
 4562                        SplitDirection::Right => try_dock(&self.right_dock),
 4563                    }
 4564                }
 4565            }
 4566
 4567            (Origin::LeftDock, SplitDirection::Right) => {
 4568                if let Some(last_active_pane) = get_last_active_pane() {
 4569                    Some(Target::Pane(last_active_pane))
 4570                } else {
 4571                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4572                }
 4573            }
 4574
 4575            (Origin::LeftDock, SplitDirection::Left) => sidebar_target,
 4576
 4577            (Origin::LeftDock, SplitDirection::Down)
 4578            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4579
 4580            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4581            (Origin::BottomDock, SplitDirection::Left) => {
 4582                try_dock(&self.left_dock).or(sidebar_target)
 4583            }
 4584            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4585
 4586            (Origin::RightDock, SplitDirection::Left) => {
 4587                if let Some(last_active_pane) = get_last_active_pane() {
 4588                    Some(Target::Pane(last_active_pane))
 4589                } else {
 4590                    try_dock(&self.bottom_dock)
 4591                        .or_else(|| try_dock(&self.left_dock))
 4592                        .or(sidebar_target)
 4593                }
 4594            }
 4595
 4596            _ => None,
 4597        };
 4598
 4599        match target {
 4600            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4601                let pane = pane.read(cx);
 4602                if let Some(item) = pane.active_item() {
 4603                    item.item_focus_handle(cx).focus(window, cx);
 4604                } else {
 4605                    log::error!(
 4606                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4607                    );
 4608                }
 4609            }
 4610            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4611                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4612                window.defer(cx, move |window, cx| {
 4613                    let dock = dock.read(cx);
 4614                    if let Some(panel) = dock.active_panel() {
 4615                        panel.panel_focus_handle(cx).focus(window, cx);
 4616                    } else {
 4617                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4618                    }
 4619                })
 4620            }
 4621            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4622                focus_handle.focus(window, cx);
 4623            }
 4624            None => {}
 4625        }
 4626    }
 4627
 4628    pub fn move_item_to_pane_in_direction(
 4629        &mut self,
 4630        action: &MoveItemToPaneInDirection,
 4631        window: &mut Window,
 4632        cx: &mut Context<Self>,
 4633    ) {
 4634        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4635            Some(destination) => destination,
 4636            None => {
 4637                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4638                    return;
 4639                }
 4640                let new_pane = self.add_pane(window, cx);
 4641                self.center
 4642                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4643                new_pane
 4644            }
 4645        };
 4646
 4647        if action.clone {
 4648            if self
 4649                .active_pane
 4650                .read(cx)
 4651                .active_item()
 4652                .is_some_and(|item| item.can_split(cx))
 4653            {
 4654                clone_active_item(
 4655                    self.database_id(),
 4656                    &self.active_pane,
 4657                    &destination,
 4658                    action.focus,
 4659                    window,
 4660                    cx,
 4661                );
 4662                return;
 4663            }
 4664        }
 4665        move_active_item(
 4666            &self.active_pane,
 4667            &destination,
 4668            action.focus,
 4669            true,
 4670            window,
 4671            cx,
 4672        );
 4673    }
 4674
 4675    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4676        self.center.bounding_box_for_pane(pane)
 4677    }
 4678
 4679    pub fn find_pane_in_direction(
 4680        &mut self,
 4681        direction: SplitDirection,
 4682        cx: &App,
 4683    ) -> Option<Entity<Pane>> {
 4684        self.center
 4685            .find_pane_in_direction(&self.active_pane, direction, cx)
 4686            .cloned()
 4687    }
 4688
 4689    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4690        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4691            self.center.swap(&self.active_pane, &to, cx);
 4692            cx.notify();
 4693        }
 4694    }
 4695
 4696    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4697        if self
 4698            .center
 4699            .move_to_border(&self.active_pane, direction, cx)
 4700            .unwrap()
 4701        {
 4702            cx.notify();
 4703        }
 4704    }
 4705
 4706    pub fn resize_pane(
 4707        &mut self,
 4708        axis: gpui::Axis,
 4709        amount: Pixels,
 4710        window: &mut Window,
 4711        cx: &mut Context<Self>,
 4712    ) {
 4713        let docks = self.all_docks();
 4714        let active_dock = docks
 4715            .into_iter()
 4716            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4717
 4718        if let Some(dock) = active_dock {
 4719            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4720                return;
 4721            };
 4722            match dock.read(cx).position() {
 4723                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4724                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4725                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4726            }
 4727        } else {
 4728            self.center
 4729                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4730        }
 4731        cx.notify();
 4732    }
 4733
 4734    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4735        self.center.reset_pane_sizes(cx);
 4736        cx.notify();
 4737    }
 4738
 4739    fn handle_pane_focused(
 4740        &mut self,
 4741        pane: Entity<Pane>,
 4742        window: &mut Window,
 4743        cx: &mut Context<Self>,
 4744    ) {
 4745        // This is explicitly hoisted out of the following check for pane identity as
 4746        // terminal panel panes are not registered as a center panes.
 4747        self.status_bar.update(cx, |status_bar, cx| {
 4748            status_bar.set_active_pane(&pane, window, cx);
 4749        });
 4750        if self.active_pane != pane {
 4751            self.set_active_pane(&pane, window, cx);
 4752        }
 4753
 4754        if self.last_active_center_pane.is_none() {
 4755            self.last_active_center_pane = Some(pane.downgrade());
 4756        }
 4757
 4758        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4759        // This prevents the dock from closing when focus events fire during window activation.
 4760        // We also preserve any dock whose active panel itself has focus — this covers
 4761        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4762        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4763            let dock_read = dock.read(cx);
 4764            if let Some(panel) = dock_read.active_panel() {
 4765                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4766                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4767                {
 4768                    return Some(dock_read.position());
 4769                }
 4770            }
 4771            None
 4772        });
 4773
 4774        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4775        if pane.read(cx).is_zoomed() {
 4776            self.zoomed = Some(pane.downgrade().into());
 4777        } else {
 4778            self.zoomed = None;
 4779        }
 4780        self.zoomed_position = None;
 4781        cx.emit(Event::ZoomChanged);
 4782        self.update_active_view_for_followers(window, cx);
 4783        pane.update(cx, |pane, _| {
 4784            pane.track_alternate_file_items();
 4785        });
 4786
 4787        cx.notify();
 4788    }
 4789
 4790    fn set_active_pane(
 4791        &mut self,
 4792        pane: &Entity<Pane>,
 4793        window: &mut Window,
 4794        cx: &mut Context<Self>,
 4795    ) {
 4796        self.active_pane = pane.clone();
 4797        self.active_item_path_changed(true, window, cx);
 4798        self.last_active_center_pane = Some(pane.downgrade());
 4799    }
 4800
 4801    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4802        self.update_active_view_for_followers(window, cx);
 4803    }
 4804
 4805    fn handle_pane_event(
 4806        &mut self,
 4807        pane: &Entity<Pane>,
 4808        event: &pane::Event,
 4809        window: &mut Window,
 4810        cx: &mut Context<Self>,
 4811    ) {
 4812        let mut serialize_workspace = true;
 4813        match event {
 4814            pane::Event::AddItem { item } => {
 4815                item.added_to_pane(self, pane.clone(), window, cx);
 4816                cx.emit(Event::ItemAdded {
 4817                    item: item.boxed_clone(),
 4818                });
 4819            }
 4820            pane::Event::Split { direction, mode } => {
 4821                match mode {
 4822                    SplitMode::ClonePane => {
 4823                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4824                            .detach();
 4825                    }
 4826                    SplitMode::EmptyPane => {
 4827                        self.split_pane(pane.clone(), *direction, window, cx);
 4828                    }
 4829                    SplitMode::MovePane => {
 4830                        self.split_and_move(pane.clone(), *direction, window, cx);
 4831                    }
 4832                };
 4833            }
 4834            pane::Event::JoinIntoNext => {
 4835                self.join_pane_into_next(pane.clone(), window, cx);
 4836            }
 4837            pane::Event::JoinAll => {
 4838                self.join_all_panes(window, cx);
 4839            }
 4840            pane::Event::Remove { focus_on_pane } => {
 4841                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4842            }
 4843            pane::Event::ActivateItem {
 4844                local,
 4845                focus_changed,
 4846            } => {
 4847                window.invalidate_character_coordinates();
 4848
 4849                pane.update(cx, |pane, _| {
 4850                    pane.track_alternate_file_items();
 4851                });
 4852                if *local {
 4853                    self.unfollow_in_pane(pane, window, cx);
 4854                }
 4855                serialize_workspace = *focus_changed || pane != self.active_pane();
 4856                if pane == self.active_pane() {
 4857                    self.active_item_path_changed(*focus_changed, window, cx);
 4858                    self.update_active_view_for_followers(window, cx);
 4859                } else if *local {
 4860                    self.set_active_pane(pane, window, cx);
 4861                }
 4862            }
 4863            pane::Event::UserSavedItem { item, save_intent } => {
 4864                cx.emit(Event::UserSavedItem {
 4865                    pane: pane.downgrade(),
 4866                    item: item.boxed_clone(),
 4867                    save_intent: *save_intent,
 4868                });
 4869                serialize_workspace = false;
 4870            }
 4871            pane::Event::ChangeItemTitle => {
 4872                if *pane == self.active_pane {
 4873                    self.active_item_path_changed(false, window, cx);
 4874                }
 4875                serialize_workspace = false;
 4876            }
 4877            pane::Event::RemovedItem { item } => {
 4878                cx.emit(Event::ActiveItemChanged);
 4879                self.update_window_edited(window, cx);
 4880                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4881                    && entry.get().entity_id() == pane.entity_id()
 4882                {
 4883                    entry.remove();
 4884                }
 4885                cx.emit(Event::ItemRemoved {
 4886                    item_id: item.item_id(),
 4887                });
 4888            }
 4889            pane::Event::Focus => {
 4890                window.invalidate_character_coordinates();
 4891                self.handle_pane_focused(pane.clone(), window, cx);
 4892            }
 4893            pane::Event::ZoomIn => {
 4894                if *pane == self.active_pane {
 4895                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4896                    if pane.read(cx).has_focus(window, cx) {
 4897                        self.zoomed = Some(pane.downgrade().into());
 4898                        self.zoomed_position = None;
 4899                        cx.emit(Event::ZoomChanged);
 4900                    }
 4901                    cx.notify();
 4902                }
 4903            }
 4904            pane::Event::ZoomOut => {
 4905                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4906                if self.zoomed_position.is_none() {
 4907                    self.zoomed = None;
 4908                    cx.emit(Event::ZoomChanged);
 4909                }
 4910                cx.notify();
 4911            }
 4912            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4913        }
 4914
 4915        if serialize_workspace {
 4916            self.serialize_workspace(window, cx);
 4917        }
 4918    }
 4919
 4920    pub fn unfollow_in_pane(
 4921        &mut self,
 4922        pane: &Entity<Pane>,
 4923        window: &mut Window,
 4924        cx: &mut Context<Workspace>,
 4925    ) -> Option<CollaboratorId> {
 4926        let leader_id = self.leader_for_pane(pane)?;
 4927        self.unfollow(leader_id, window, cx);
 4928        Some(leader_id)
 4929    }
 4930
 4931    pub fn split_pane(
 4932        &mut self,
 4933        pane_to_split: Entity<Pane>,
 4934        split_direction: SplitDirection,
 4935        window: &mut Window,
 4936        cx: &mut Context<Self>,
 4937    ) -> Entity<Pane> {
 4938        let new_pane = self.add_pane(window, cx);
 4939        self.center
 4940            .split(&pane_to_split, &new_pane, split_direction, cx);
 4941        cx.notify();
 4942        new_pane
 4943    }
 4944
 4945    pub fn split_and_move(
 4946        &mut self,
 4947        pane: Entity<Pane>,
 4948        direction: SplitDirection,
 4949        window: &mut Window,
 4950        cx: &mut Context<Self>,
 4951    ) {
 4952        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4953            return;
 4954        };
 4955        let new_pane = self.add_pane(window, cx);
 4956        new_pane.update(cx, |pane, cx| {
 4957            pane.add_item(item, true, true, None, window, cx)
 4958        });
 4959        self.center.split(&pane, &new_pane, direction, cx);
 4960        cx.notify();
 4961    }
 4962
 4963    pub fn split_and_clone(
 4964        &mut self,
 4965        pane: Entity<Pane>,
 4966        direction: SplitDirection,
 4967        window: &mut Window,
 4968        cx: &mut Context<Self>,
 4969    ) -> Task<Option<Entity<Pane>>> {
 4970        let Some(item) = pane.read(cx).active_item() else {
 4971            return Task::ready(None);
 4972        };
 4973        if !item.can_split(cx) {
 4974            return Task::ready(None);
 4975        }
 4976        let task = item.clone_on_split(self.database_id(), window, cx);
 4977        cx.spawn_in(window, async move |this, cx| {
 4978            if let Some(clone) = task.await {
 4979                this.update_in(cx, |this, window, cx| {
 4980                    let new_pane = this.add_pane(window, cx);
 4981                    let nav_history = pane.read(cx).fork_nav_history();
 4982                    new_pane.update(cx, |pane, cx| {
 4983                        pane.set_nav_history(nav_history, cx);
 4984                        pane.add_item(clone, true, true, None, window, cx)
 4985                    });
 4986                    this.center.split(&pane, &new_pane, direction, cx);
 4987                    cx.notify();
 4988                    new_pane
 4989                })
 4990                .ok()
 4991            } else {
 4992                None
 4993            }
 4994        })
 4995    }
 4996
 4997    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4998        let active_item = self.active_pane.read(cx).active_item();
 4999        for pane in &self.panes {
 5000            join_pane_into_active(&self.active_pane, pane, window, cx);
 5001        }
 5002        if let Some(active_item) = active_item {
 5003            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5004        }
 5005        cx.notify();
 5006    }
 5007
 5008    pub fn join_pane_into_next(
 5009        &mut self,
 5010        pane: Entity<Pane>,
 5011        window: &mut Window,
 5012        cx: &mut Context<Self>,
 5013    ) {
 5014        let next_pane = self
 5015            .find_pane_in_direction(SplitDirection::Right, cx)
 5016            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5017            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5018            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5019        let Some(next_pane) = next_pane else {
 5020            return;
 5021        };
 5022        move_all_items(&pane, &next_pane, window, cx);
 5023        cx.notify();
 5024    }
 5025
 5026    fn remove_pane(
 5027        &mut self,
 5028        pane: Entity<Pane>,
 5029        focus_on: Option<Entity<Pane>>,
 5030        window: &mut Window,
 5031        cx: &mut Context<Self>,
 5032    ) {
 5033        if self.center.remove(&pane, cx).unwrap() {
 5034            self.force_remove_pane(&pane, &focus_on, window, cx);
 5035            self.unfollow_in_pane(&pane, window, cx);
 5036            self.last_leaders_by_pane.remove(&pane.downgrade());
 5037            for removed_item in pane.read(cx).items() {
 5038                self.panes_by_item.remove(&removed_item.item_id());
 5039            }
 5040
 5041            cx.notify();
 5042        } else {
 5043            self.active_item_path_changed(true, window, cx);
 5044        }
 5045        cx.emit(Event::PaneRemoved);
 5046    }
 5047
 5048    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5049        &mut self.panes
 5050    }
 5051
 5052    pub fn panes(&self) -> &[Entity<Pane>] {
 5053        &self.panes
 5054    }
 5055
 5056    pub fn active_pane(&self) -> &Entity<Pane> {
 5057        &self.active_pane
 5058    }
 5059
 5060    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5061        for dock in self.all_docks() {
 5062            if dock.focus_handle(cx).contains_focused(window, cx)
 5063                && let Some(pane) = dock
 5064                    .read(cx)
 5065                    .active_panel()
 5066                    .and_then(|panel| panel.pane(cx))
 5067            {
 5068                return pane;
 5069            }
 5070        }
 5071        self.active_pane().clone()
 5072    }
 5073
 5074    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5075        self.find_pane_in_direction(SplitDirection::Right, cx)
 5076            .unwrap_or_else(|| {
 5077                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5078            })
 5079    }
 5080
 5081    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5082        self.pane_for_item_id(handle.item_id())
 5083    }
 5084
 5085    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5086        let weak_pane = self.panes_by_item.get(&item_id)?;
 5087        weak_pane.upgrade()
 5088    }
 5089
 5090    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5091        self.panes
 5092            .iter()
 5093            .find(|pane| pane.entity_id() == entity_id)
 5094            .cloned()
 5095    }
 5096
 5097    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5098        self.follower_states.retain(|leader_id, state| {
 5099            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5100                for item in state.items_by_leader_view_id.values() {
 5101                    item.view.set_leader_id(None, window, cx);
 5102                }
 5103                false
 5104            } else {
 5105                true
 5106            }
 5107        });
 5108        cx.notify();
 5109    }
 5110
 5111    pub fn start_following(
 5112        &mut self,
 5113        leader_id: impl Into<CollaboratorId>,
 5114        window: &mut Window,
 5115        cx: &mut Context<Self>,
 5116    ) -> Option<Task<Result<()>>> {
 5117        let leader_id = leader_id.into();
 5118        let pane = self.active_pane().clone();
 5119
 5120        self.last_leaders_by_pane
 5121            .insert(pane.downgrade(), leader_id);
 5122        self.unfollow(leader_id, window, cx);
 5123        self.unfollow_in_pane(&pane, window, cx);
 5124        self.follower_states.insert(
 5125            leader_id,
 5126            FollowerState {
 5127                center_pane: pane.clone(),
 5128                dock_pane: None,
 5129                active_view_id: None,
 5130                items_by_leader_view_id: Default::default(),
 5131            },
 5132        );
 5133        cx.notify();
 5134
 5135        match leader_id {
 5136            CollaboratorId::PeerId(leader_peer_id) => {
 5137                let room_id = self.active_call()?.room_id(cx)?;
 5138                let project_id = self.project.read(cx).remote_id();
 5139                let request = self.app_state.client.request(proto::Follow {
 5140                    room_id,
 5141                    project_id,
 5142                    leader_id: Some(leader_peer_id),
 5143                });
 5144
 5145                Some(cx.spawn_in(window, async move |this, cx| {
 5146                    let response = request.await?;
 5147                    this.update(cx, |this, _| {
 5148                        let state = this
 5149                            .follower_states
 5150                            .get_mut(&leader_id)
 5151                            .context("following interrupted")?;
 5152                        state.active_view_id = response
 5153                            .active_view
 5154                            .as_ref()
 5155                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5156                        anyhow::Ok(())
 5157                    })??;
 5158                    if let Some(view) = response.active_view {
 5159                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5160                    }
 5161                    this.update_in(cx, |this, window, cx| {
 5162                        this.leader_updated(leader_id, window, cx)
 5163                    })?;
 5164                    Ok(())
 5165                }))
 5166            }
 5167            CollaboratorId::Agent => {
 5168                self.leader_updated(leader_id, window, cx)?;
 5169                Some(Task::ready(Ok(())))
 5170            }
 5171        }
 5172    }
 5173
 5174    pub fn follow_next_collaborator(
 5175        &mut self,
 5176        _: &FollowNextCollaborator,
 5177        window: &mut Window,
 5178        cx: &mut Context<Self>,
 5179    ) {
 5180        let collaborators = self.project.read(cx).collaborators();
 5181        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5182            let mut collaborators = collaborators.keys().copied();
 5183            for peer_id in collaborators.by_ref() {
 5184                if CollaboratorId::PeerId(peer_id) == leader_id {
 5185                    break;
 5186                }
 5187            }
 5188            collaborators.next().map(CollaboratorId::PeerId)
 5189        } else if let Some(last_leader_id) =
 5190            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5191        {
 5192            match last_leader_id {
 5193                CollaboratorId::PeerId(peer_id) => {
 5194                    if collaborators.contains_key(peer_id) {
 5195                        Some(*last_leader_id)
 5196                    } else {
 5197                        None
 5198                    }
 5199                }
 5200                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5201            }
 5202        } else {
 5203            None
 5204        };
 5205
 5206        let pane = self.active_pane.clone();
 5207        let Some(leader_id) = next_leader_id.or_else(|| {
 5208            Some(CollaboratorId::PeerId(
 5209                collaborators.keys().copied().next()?,
 5210            ))
 5211        }) else {
 5212            return;
 5213        };
 5214        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5215            return;
 5216        }
 5217        if let Some(task) = self.start_following(leader_id, window, cx) {
 5218            task.detach_and_log_err(cx)
 5219        }
 5220    }
 5221
 5222    pub fn follow(
 5223        &mut self,
 5224        leader_id: impl Into<CollaboratorId>,
 5225        window: &mut Window,
 5226        cx: &mut Context<Self>,
 5227    ) {
 5228        let leader_id = leader_id.into();
 5229
 5230        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5231            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5232                return;
 5233            };
 5234            let Some(remote_participant) =
 5235                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5236            else {
 5237                return;
 5238            };
 5239
 5240            let project = self.project.read(cx);
 5241
 5242            let other_project_id = match remote_participant.location {
 5243                ParticipantLocation::External => None,
 5244                ParticipantLocation::UnsharedProject => None,
 5245                ParticipantLocation::SharedProject { project_id } => {
 5246                    if Some(project_id) == project.remote_id() {
 5247                        None
 5248                    } else {
 5249                        Some(project_id)
 5250                    }
 5251                }
 5252            };
 5253
 5254            // if they are active in another project, follow there.
 5255            if let Some(project_id) = other_project_id {
 5256                let app_state = self.app_state.clone();
 5257                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5258                    .detach_and_log_err(cx);
 5259            }
 5260        }
 5261
 5262        // if you're already following, find the right pane and focus it.
 5263        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5264            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5265
 5266            return;
 5267        }
 5268
 5269        // Otherwise, follow.
 5270        if let Some(task) = self.start_following(leader_id, window, cx) {
 5271            task.detach_and_log_err(cx)
 5272        }
 5273    }
 5274
 5275    pub fn unfollow(
 5276        &mut self,
 5277        leader_id: impl Into<CollaboratorId>,
 5278        window: &mut Window,
 5279        cx: &mut Context<Self>,
 5280    ) -> Option<()> {
 5281        cx.notify();
 5282
 5283        let leader_id = leader_id.into();
 5284        let state = self.follower_states.remove(&leader_id)?;
 5285        for (_, item) in state.items_by_leader_view_id {
 5286            item.view.set_leader_id(None, window, cx);
 5287        }
 5288
 5289        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5290            let project_id = self.project.read(cx).remote_id();
 5291            let room_id = self.active_call()?.room_id(cx)?;
 5292            self.app_state
 5293                .client
 5294                .send(proto::Unfollow {
 5295                    room_id,
 5296                    project_id,
 5297                    leader_id: Some(leader_peer_id),
 5298                })
 5299                .log_err();
 5300        }
 5301
 5302        Some(())
 5303    }
 5304
 5305    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5306        self.follower_states.contains_key(&id.into())
 5307    }
 5308
 5309    fn active_item_path_changed(
 5310        &mut self,
 5311        focus_changed: bool,
 5312        window: &mut Window,
 5313        cx: &mut Context<Self>,
 5314    ) {
 5315        cx.emit(Event::ActiveItemChanged);
 5316        let active_entry = self.active_project_path(cx);
 5317        self.project.update(cx, |project, cx| {
 5318            project.set_active_path(active_entry.clone(), cx)
 5319        });
 5320
 5321        if focus_changed && let Some(project_path) = &active_entry {
 5322            let git_store_entity = self.project.read(cx).git_store().clone();
 5323            git_store_entity.update(cx, |git_store, cx| {
 5324                git_store.set_active_repo_for_path(project_path, cx);
 5325            });
 5326        }
 5327
 5328        self.update_window_title(window, cx);
 5329    }
 5330
 5331    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5332        let project = self.project().read(cx);
 5333        let mut title = String::new();
 5334
 5335        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5336            let name = {
 5337                let settings_location = SettingsLocation {
 5338                    worktree_id: worktree.read(cx).id(),
 5339                    path: RelPath::empty(),
 5340                };
 5341
 5342                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5343                match &settings.project_name {
 5344                    Some(name) => name.as_str(),
 5345                    None => worktree.read(cx).root_name_str(),
 5346                }
 5347            };
 5348            if i > 0 {
 5349                title.push_str(", ");
 5350            }
 5351            title.push_str(name);
 5352        }
 5353
 5354        if title.is_empty() {
 5355            title = "empty project".to_string();
 5356        }
 5357
 5358        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5359            let filename = path.path.file_name().or_else(|| {
 5360                Some(
 5361                    project
 5362                        .worktree_for_id(path.worktree_id, cx)?
 5363                        .read(cx)
 5364                        .root_name_str(),
 5365                )
 5366            });
 5367
 5368            if let Some(filename) = filename {
 5369                title.push_str("");
 5370                title.push_str(filename.as_ref());
 5371            }
 5372        }
 5373
 5374        if project.is_via_collab() {
 5375            title.push_str("");
 5376        } else if project.is_shared() {
 5377            title.push_str("");
 5378        }
 5379
 5380        if let Some(last_title) = self.last_window_title.as_ref()
 5381            && &title == last_title
 5382        {
 5383            return;
 5384        }
 5385        window.set_window_title(&title);
 5386        SystemWindowTabController::update_tab_title(
 5387            cx,
 5388            window.window_handle().window_id(),
 5389            SharedString::from(&title),
 5390        );
 5391        self.last_window_title = Some(title);
 5392    }
 5393
 5394    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5395        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5396        if is_edited != self.window_edited {
 5397            self.window_edited = is_edited;
 5398            window.set_window_edited(self.window_edited)
 5399        }
 5400    }
 5401
 5402    fn update_item_dirty_state(
 5403        &mut self,
 5404        item: &dyn ItemHandle,
 5405        window: &mut Window,
 5406        cx: &mut App,
 5407    ) {
 5408        let is_dirty = item.is_dirty(cx);
 5409        let item_id = item.item_id();
 5410        let was_dirty = self.dirty_items.contains_key(&item_id);
 5411        if is_dirty == was_dirty {
 5412            return;
 5413        }
 5414        if was_dirty {
 5415            self.dirty_items.remove(&item_id);
 5416            self.update_window_edited(window, cx);
 5417            return;
 5418        }
 5419
 5420        let workspace = self.weak_handle();
 5421        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5422            return;
 5423        };
 5424        let on_release_callback = Box::new(move |cx: &mut App| {
 5425            window_handle
 5426                .update(cx, |_, window, cx| {
 5427                    workspace
 5428                        .update(cx, |workspace, cx| {
 5429                            workspace.dirty_items.remove(&item_id);
 5430                            workspace.update_window_edited(window, cx)
 5431                        })
 5432                        .ok();
 5433                })
 5434                .ok();
 5435        });
 5436
 5437        let s = item.on_release(cx, on_release_callback);
 5438        self.dirty_items.insert(item_id, s);
 5439        self.update_window_edited(window, cx);
 5440    }
 5441
 5442    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5443        if self.notifications.is_empty() {
 5444            None
 5445        } else {
 5446            Some(
 5447                div()
 5448                    .absolute()
 5449                    .right_3()
 5450                    .bottom_3()
 5451                    .w_112()
 5452                    .h_full()
 5453                    .flex()
 5454                    .flex_col()
 5455                    .justify_end()
 5456                    .gap_2()
 5457                    .children(
 5458                        self.notifications
 5459                            .iter()
 5460                            .map(|(_, notification)| notification.clone().into_any()),
 5461                    ),
 5462            )
 5463        }
 5464    }
 5465
 5466    // RPC handlers
 5467
 5468    fn active_view_for_follower(
 5469        &self,
 5470        follower_project_id: Option<u64>,
 5471        window: &mut Window,
 5472        cx: &mut Context<Self>,
 5473    ) -> Option<proto::View> {
 5474        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5475        let item = item?;
 5476        let leader_id = self
 5477            .pane_for(&*item)
 5478            .and_then(|pane| self.leader_for_pane(&pane));
 5479        let leader_peer_id = match leader_id {
 5480            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5481            Some(CollaboratorId::Agent) | None => None,
 5482        };
 5483
 5484        let item_handle = item.to_followable_item_handle(cx)?;
 5485        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5486        let variant = item_handle.to_state_proto(window, cx)?;
 5487
 5488        if item_handle.is_project_item(window, cx)
 5489            && (follower_project_id.is_none()
 5490                || follower_project_id != self.project.read(cx).remote_id())
 5491        {
 5492            return None;
 5493        }
 5494
 5495        Some(proto::View {
 5496            id: id.to_proto(),
 5497            leader_id: leader_peer_id,
 5498            variant: Some(variant),
 5499            panel_id: panel_id.map(|id| id as i32),
 5500        })
 5501    }
 5502
 5503    fn handle_follow(
 5504        &mut self,
 5505        follower_project_id: Option<u64>,
 5506        window: &mut Window,
 5507        cx: &mut Context<Self>,
 5508    ) -> proto::FollowResponse {
 5509        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5510
 5511        cx.notify();
 5512        proto::FollowResponse {
 5513            views: active_view.iter().cloned().collect(),
 5514            active_view,
 5515        }
 5516    }
 5517
 5518    fn handle_update_followers(
 5519        &mut self,
 5520        leader_id: PeerId,
 5521        message: proto::UpdateFollowers,
 5522        _window: &mut Window,
 5523        _cx: &mut Context<Self>,
 5524    ) {
 5525        self.leader_updates_tx
 5526            .unbounded_send((leader_id, message))
 5527            .ok();
 5528    }
 5529
 5530    async fn process_leader_update(
 5531        this: &WeakEntity<Self>,
 5532        leader_id: PeerId,
 5533        update: proto::UpdateFollowers,
 5534        cx: &mut AsyncWindowContext,
 5535    ) -> Result<()> {
 5536        match update.variant.context("invalid update")? {
 5537            proto::update_followers::Variant::CreateView(view) => {
 5538                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5539                let should_add_view = this.update(cx, |this, _| {
 5540                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5541                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5542                    } else {
 5543                        anyhow::Ok(false)
 5544                    }
 5545                })??;
 5546
 5547                if should_add_view {
 5548                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5549                }
 5550            }
 5551            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5552                let should_add_view = this.update(cx, |this, _| {
 5553                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5554                        state.active_view_id = update_active_view
 5555                            .view
 5556                            .as_ref()
 5557                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5558
 5559                        if state.active_view_id.is_some_and(|view_id| {
 5560                            !state.items_by_leader_view_id.contains_key(&view_id)
 5561                        }) {
 5562                            anyhow::Ok(true)
 5563                        } else {
 5564                            anyhow::Ok(false)
 5565                        }
 5566                    } else {
 5567                        anyhow::Ok(false)
 5568                    }
 5569                })??;
 5570
 5571                if should_add_view && let Some(view) = update_active_view.view {
 5572                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5573                }
 5574            }
 5575            proto::update_followers::Variant::UpdateView(update_view) => {
 5576                let variant = update_view.variant.context("missing update view variant")?;
 5577                let id = update_view.id.context("missing update view id")?;
 5578                let mut tasks = Vec::new();
 5579                this.update_in(cx, |this, window, cx| {
 5580                    let project = this.project.clone();
 5581                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5582                        let view_id = ViewId::from_proto(id.clone())?;
 5583                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5584                            tasks.push(item.view.apply_update_proto(
 5585                                &project,
 5586                                variant.clone(),
 5587                                window,
 5588                                cx,
 5589                            ));
 5590                        }
 5591                    }
 5592                    anyhow::Ok(())
 5593                })??;
 5594                try_join_all(tasks).await.log_err();
 5595            }
 5596        }
 5597        this.update_in(cx, |this, window, cx| {
 5598            this.leader_updated(leader_id, window, cx)
 5599        })?;
 5600        Ok(())
 5601    }
 5602
 5603    async fn add_view_from_leader(
 5604        this: WeakEntity<Self>,
 5605        leader_id: PeerId,
 5606        view: &proto::View,
 5607        cx: &mut AsyncWindowContext,
 5608    ) -> Result<()> {
 5609        let this = this.upgrade().context("workspace dropped")?;
 5610
 5611        let Some(id) = view.id.clone() else {
 5612            anyhow::bail!("no id for view");
 5613        };
 5614        let id = ViewId::from_proto(id)?;
 5615        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5616
 5617        let pane = this.update(cx, |this, _cx| {
 5618            let state = this
 5619                .follower_states
 5620                .get(&leader_id.into())
 5621                .context("stopped following")?;
 5622            anyhow::Ok(state.pane().clone())
 5623        })?;
 5624        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5625            let client = this.read(cx).client().clone();
 5626            pane.items().find_map(|item| {
 5627                let item = item.to_followable_item_handle(cx)?;
 5628                if item.remote_id(&client, window, cx) == Some(id) {
 5629                    Some(item)
 5630                } else {
 5631                    None
 5632                }
 5633            })
 5634        })?;
 5635        let item = if let Some(existing_item) = existing_item {
 5636            existing_item
 5637        } else {
 5638            let variant = view.variant.clone();
 5639            anyhow::ensure!(variant.is_some(), "missing view variant");
 5640
 5641            let task = cx.update(|window, cx| {
 5642                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5643            })?;
 5644
 5645            let Some(task) = task else {
 5646                anyhow::bail!(
 5647                    "failed to construct view from leader (maybe from a different version of zed?)"
 5648                );
 5649            };
 5650
 5651            let mut new_item = task.await?;
 5652            pane.update_in(cx, |pane, window, cx| {
 5653                let mut item_to_remove = None;
 5654                for (ix, item) in pane.items().enumerate() {
 5655                    if let Some(item) = item.to_followable_item_handle(cx) {
 5656                        match new_item.dedup(item.as_ref(), window, cx) {
 5657                            Some(item::Dedup::KeepExisting) => {
 5658                                new_item =
 5659                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5660                                break;
 5661                            }
 5662                            Some(item::Dedup::ReplaceExisting) => {
 5663                                item_to_remove = Some((ix, item.item_id()));
 5664                                break;
 5665                            }
 5666                            None => {}
 5667                        }
 5668                    }
 5669                }
 5670
 5671                if let Some((ix, id)) = item_to_remove {
 5672                    pane.remove_item(id, false, false, window, cx);
 5673                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5674                }
 5675            })?;
 5676
 5677            new_item
 5678        };
 5679
 5680        this.update_in(cx, |this, window, cx| {
 5681            let state = this.follower_states.get_mut(&leader_id.into())?;
 5682            item.set_leader_id(Some(leader_id.into()), window, cx);
 5683            state.items_by_leader_view_id.insert(
 5684                id,
 5685                FollowerView {
 5686                    view: item,
 5687                    location: panel_id,
 5688                },
 5689            );
 5690
 5691            Some(())
 5692        })
 5693        .context("no follower state")?;
 5694
 5695        Ok(())
 5696    }
 5697
 5698    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5699        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5700            return;
 5701        };
 5702
 5703        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5704            let buffer_entity_id = agent_location.buffer.entity_id();
 5705            let view_id = ViewId {
 5706                creator: CollaboratorId::Agent,
 5707                id: buffer_entity_id.as_u64(),
 5708            };
 5709            follower_state.active_view_id = Some(view_id);
 5710
 5711            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5712                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5713                hash_map::Entry::Vacant(entry) => {
 5714                    let existing_view =
 5715                        follower_state
 5716                            .center_pane
 5717                            .read(cx)
 5718                            .items()
 5719                            .find_map(|item| {
 5720                                let item = item.to_followable_item_handle(cx)?;
 5721                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5722                                    && item.project_item_model_ids(cx).as_slice()
 5723                                        == [buffer_entity_id]
 5724                                {
 5725                                    Some(item)
 5726                                } else {
 5727                                    None
 5728                                }
 5729                            });
 5730                    let view = existing_view.or_else(|| {
 5731                        agent_location.buffer.upgrade().and_then(|buffer| {
 5732                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5733                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5734                            })?
 5735                            .to_followable_item_handle(cx)
 5736                        })
 5737                    });
 5738
 5739                    view.map(|view| {
 5740                        entry.insert(FollowerView {
 5741                            view,
 5742                            location: None,
 5743                        })
 5744                    })
 5745                }
 5746            };
 5747
 5748            if let Some(item) = item {
 5749                item.view
 5750                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5751                item.view
 5752                    .update_agent_location(agent_location.position, window, cx);
 5753            }
 5754        } else {
 5755            follower_state.active_view_id = None;
 5756        }
 5757
 5758        self.leader_updated(CollaboratorId::Agent, window, cx);
 5759    }
 5760
 5761    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5762        let mut is_project_item = true;
 5763        let mut update = proto::UpdateActiveView::default();
 5764        if window.is_window_active() {
 5765            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5766
 5767            if let Some(item) = active_item
 5768                && item.item_focus_handle(cx).contains_focused(window, cx)
 5769            {
 5770                let leader_id = self
 5771                    .pane_for(&*item)
 5772                    .and_then(|pane| self.leader_for_pane(&pane));
 5773                let leader_peer_id = match leader_id {
 5774                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5775                    Some(CollaboratorId::Agent) | None => None,
 5776                };
 5777
 5778                if let Some(item) = item.to_followable_item_handle(cx) {
 5779                    let id = item
 5780                        .remote_id(&self.app_state.client, window, cx)
 5781                        .map(|id| id.to_proto());
 5782
 5783                    if let Some(id) = id
 5784                        && let Some(variant) = item.to_state_proto(window, cx)
 5785                    {
 5786                        let view = Some(proto::View {
 5787                            id,
 5788                            leader_id: leader_peer_id,
 5789                            variant: Some(variant),
 5790                            panel_id: panel_id.map(|id| id as i32),
 5791                        });
 5792
 5793                        is_project_item = item.is_project_item(window, cx);
 5794                        update = proto::UpdateActiveView { view };
 5795                    };
 5796                }
 5797            }
 5798        }
 5799
 5800        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5801        if active_view_id != self.last_active_view_id.as_ref() {
 5802            self.last_active_view_id = active_view_id.cloned();
 5803            self.update_followers(
 5804                is_project_item,
 5805                proto::update_followers::Variant::UpdateActiveView(update),
 5806                window,
 5807                cx,
 5808            );
 5809        }
 5810    }
 5811
 5812    fn active_item_for_followers(
 5813        &self,
 5814        window: &mut Window,
 5815        cx: &mut App,
 5816    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5817        let mut active_item = None;
 5818        let mut panel_id = None;
 5819        for dock in self.all_docks() {
 5820            if dock.focus_handle(cx).contains_focused(window, cx)
 5821                && let Some(panel) = dock.read(cx).active_panel()
 5822                && let Some(pane) = panel.pane(cx)
 5823                && let Some(item) = pane.read(cx).active_item()
 5824            {
 5825                active_item = Some(item);
 5826                panel_id = panel.remote_id();
 5827                break;
 5828            }
 5829        }
 5830
 5831        if active_item.is_none() {
 5832            active_item = self.active_pane().read(cx).active_item();
 5833        }
 5834        (active_item, panel_id)
 5835    }
 5836
 5837    fn update_followers(
 5838        &self,
 5839        project_only: bool,
 5840        update: proto::update_followers::Variant,
 5841        _: &mut Window,
 5842        cx: &mut App,
 5843    ) -> Option<()> {
 5844        // If this update only applies to for followers in the current project,
 5845        // then skip it unless this project is shared. If it applies to all
 5846        // followers, regardless of project, then set `project_id` to none,
 5847        // indicating that it goes to all followers.
 5848        let project_id = if project_only {
 5849            Some(self.project.read(cx).remote_id()?)
 5850        } else {
 5851            None
 5852        };
 5853        self.app_state().workspace_store.update(cx, |store, cx| {
 5854            store.update_followers(project_id, update, cx)
 5855        })
 5856    }
 5857
 5858    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5859        self.follower_states.iter().find_map(|(leader_id, state)| {
 5860            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5861                Some(*leader_id)
 5862            } else {
 5863                None
 5864            }
 5865        })
 5866    }
 5867
 5868    fn leader_updated(
 5869        &mut self,
 5870        leader_id: impl Into<CollaboratorId>,
 5871        window: &mut Window,
 5872        cx: &mut Context<Self>,
 5873    ) -> Option<Box<dyn ItemHandle>> {
 5874        cx.notify();
 5875
 5876        let leader_id = leader_id.into();
 5877        let (panel_id, item) = match leader_id {
 5878            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5879            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5880        };
 5881
 5882        let state = self.follower_states.get(&leader_id)?;
 5883        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5884        let pane;
 5885        if let Some(panel_id) = panel_id {
 5886            pane = self
 5887                .activate_panel_for_proto_id(panel_id, window, cx)?
 5888                .pane(cx)?;
 5889            let state = self.follower_states.get_mut(&leader_id)?;
 5890            state.dock_pane = Some(pane.clone());
 5891        } else {
 5892            pane = state.center_pane.clone();
 5893            let state = self.follower_states.get_mut(&leader_id)?;
 5894            if let Some(dock_pane) = state.dock_pane.take() {
 5895                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5896            }
 5897        }
 5898
 5899        pane.update(cx, |pane, cx| {
 5900            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5901            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5902                pane.activate_item(index, false, false, window, cx);
 5903            } else {
 5904                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5905            }
 5906
 5907            if focus_active_item {
 5908                pane.focus_active_item(window, cx)
 5909            }
 5910        });
 5911
 5912        Some(item)
 5913    }
 5914
 5915    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5916        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5917        let active_view_id = state.active_view_id?;
 5918        Some(
 5919            state
 5920                .items_by_leader_view_id
 5921                .get(&active_view_id)?
 5922                .view
 5923                .boxed_clone(),
 5924        )
 5925    }
 5926
 5927    fn active_item_for_peer(
 5928        &self,
 5929        peer_id: PeerId,
 5930        window: &mut Window,
 5931        cx: &mut Context<Self>,
 5932    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5933        let call = self.active_call()?;
 5934        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 5935        let leader_in_this_app;
 5936        let leader_in_this_project;
 5937        match participant.location {
 5938            ParticipantLocation::SharedProject { project_id } => {
 5939                leader_in_this_app = true;
 5940                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5941            }
 5942            ParticipantLocation::UnsharedProject => {
 5943                leader_in_this_app = true;
 5944                leader_in_this_project = false;
 5945            }
 5946            ParticipantLocation::External => {
 5947                leader_in_this_app = false;
 5948                leader_in_this_project = false;
 5949            }
 5950        };
 5951        let state = self.follower_states.get(&peer_id.into())?;
 5952        let mut item_to_activate = None;
 5953        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5954            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5955                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5956            {
 5957                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5958            }
 5959        } else if let Some(shared_screen) =
 5960            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5961        {
 5962            item_to_activate = Some((None, Box::new(shared_screen)));
 5963        }
 5964        item_to_activate
 5965    }
 5966
 5967    fn shared_screen_for_peer(
 5968        &self,
 5969        peer_id: PeerId,
 5970        pane: &Entity<Pane>,
 5971        window: &mut Window,
 5972        cx: &mut App,
 5973    ) -> Option<Entity<SharedScreen>> {
 5974        self.active_call()?
 5975            .create_shared_screen(peer_id, pane, window, cx)
 5976    }
 5977
 5978    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5979        if window.is_window_active() {
 5980            self.update_active_view_for_followers(window, cx);
 5981
 5982            if let Some(database_id) = self.database_id {
 5983                let db = WorkspaceDb::global(cx);
 5984                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 5985                    .detach();
 5986            }
 5987        } else {
 5988            for pane in &self.panes {
 5989                pane.update(cx, |pane, cx| {
 5990                    if let Some(item) = pane.active_item() {
 5991                        item.workspace_deactivated(window, cx);
 5992                    }
 5993                    for item in pane.items() {
 5994                        if matches!(
 5995                            item.workspace_settings(cx).autosave,
 5996                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5997                        ) {
 5998                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5999                                .detach_and_log_err(cx);
 6000                        }
 6001                    }
 6002                });
 6003            }
 6004        }
 6005    }
 6006
 6007    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6008        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6009    }
 6010
 6011    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6012        self.active_call.as_ref().map(|(call, _)| call.clone())
 6013    }
 6014
 6015    fn on_active_call_event(
 6016        &mut self,
 6017        event: &ActiveCallEvent,
 6018        window: &mut Window,
 6019        cx: &mut Context<Self>,
 6020    ) {
 6021        match event {
 6022            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6023            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6024                self.leader_updated(participant_id, window, cx);
 6025            }
 6026        }
 6027    }
 6028
 6029    pub fn database_id(&self) -> Option<WorkspaceId> {
 6030        self.database_id
 6031    }
 6032
 6033    #[cfg(any(test, feature = "test-support"))]
 6034    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6035        self.database_id = Some(id);
 6036    }
 6037
 6038    pub fn session_id(&self) -> Option<String> {
 6039        self.session_id.clone()
 6040    }
 6041
 6042    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6043        let Some(display) = window.display(cx) else {
 6044            return Task::ready(());
 6045        };
 6046        let Ok(display_uuid) = display.uuid() else {
 6047            return Task::ready(());
 6048        };
 6049
 6050        let window_bounds = window.inner_window_bounds();
 6051        let database_id = self.database_id;
 6052        let has_paths = !self.root_paths(cx).is_empty();
 6053        let db = WorkspaceDb::global(cx);
 6054        let kvp = db::kvp::KeyValueStore::global(cx);
 6055
 6056        cx.background_executor().spawn(async move {
 6057            if !has_paths {
 6058                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6059                    .await
 6060                    .log_err();
 6061            }
 6062            if let Some(database_id) = database_id {
 6063                db.set_window_open_status(
 6064                    database_id,
 6065                    SerializedWindowBounds(window_bounds),
 6066                    display_uuid,
 6067                )
 6068                .await
 6069                .log_err();
 6070            } else {
 6071                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6072                    .await
 6073                    .log_err();
 6074            }
 6075        })
 6076    }
 6077
 6078    /// Bypass the 200ms serialization throttle and write workspace state to
 6079    /// the DB immediately. Returns a task the caller can await to ensure the
 6080    /// write completes. Used by the quit handler so the most recent state
 6081    /// isn't lost to a pending throttle timer when the process exits.
 6082    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6083        self._schedule_serialize_workspace.take();
 6084        self._serialize_workspace_task.take();
 6085        self.bounds_save_task_queued.take();
 6086
 6087        let bounds_task = self.save_window_bounds(window, cx);
 6088        let serialize_task = self.serialize_workspace_internal(window, cx);
 6089        cx.spawn(async move |_| {
 6090            bounds_task.await;
 6091            serialize_task.await;
 6092        })
 6093    }
 6094
 6095    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6096        let project = self.project().read(cx);
 6097        project
 6098            .visible_worktrees(cx)
 6099            .map(|worktree| worktree.read(cx).abs_path())
 6100            .collect::<Vec<_>>()
 6101    }
 6102
 6103    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6104        match member {
 6105            Member::Axis(PaneAxis { members, .. }) => {
 6106                for child in members.iter() {
 6107                    self.remove_panes(child.clone(), window, cx)
 6108                }
 6109            }
 6110            Member::Pane(pane) => {
 6111                self.force_remove_pane(&pane, &None, window, cx);
 6112            }
 6113        }
 6114    }
 6115
 6116    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6117        self.session_id.take();
 6118        self.serialize_workspace_internal(window, cx)
 6119    }
 6120
 6121    fn force_remove_pane(
 6122        &mut self,
 6123        pane: &Entity<Pane>,
 6124        focus_on: &Option<Entity<Pane>>,
 6125        window: &mut Window,
 6126        cx: &mut Context<Workspace>,
 6127    ) {
 6128        self.panes.retain(|p| p != pane);
 6129        if let Some(focus_on) = focus_on {
 6130            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6131        } else if self.active_pane() == pane {
 6132            self.panes
 6133                .last()
 6134                .unwrap()
 6135                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6136        }
 6137        if self.last_active_center_pane == Some(pane.downgrade()) {
 6138            self.last_active_center_pane = None;
 6139        }
 6140        cx.notify();
 6141    }
 6142
 6143    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6144        if self._schedule_serialize_workspace.is_none() {
 6145            self._schedule_serialize_workspace =
 6146                Some(cx.spawn_in(window, async move |this, cx| {
 6147                    cx.background_executor()
 6148                        .timer(SERIALIZATION_THROTTLE_TIME)
 6149                        .await;
 6150                    this.update_in(cx, |this, window, cx| {
 6151                        this._serialize_workspace_task =
 6152                            Some(this.serialize_workspace_internal(window, cx));
 6153                        this._schedule_serialize_workspace.take();
 6154                    })
 6155                    .log_err();
 6156                }));
 6157        }
 6158    }
 6159
 6160    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6161        let Some(database_id) = self.database_id() else {
 6162            return Task::ready(());
 6163        };
 6164
 6165        fn serialize_pane_handle(
 6166            pane_handle: &Entity<Pane>,
 6167            window: &mut Window,
 6168            cx: &mut App,
 6169        ) -> SerializedPane {
 6170            let (items, active, pinned_count) = {
 6171                let pane = pane_handle.read(cx);
 6172                let active_item_id = pane.active_item().map(|item| item.item_id());
 6173                (
 6174                    pane.items()
 6175                        .filter_map(|handle| {
 6176                            let handle = handle.to_serializable_item_handle(cx)?;
 6177
 6178                            Some(SerializedItem {
 6179                                kind: Arc::from(handle.serialized_item_kind()),
 6180                                item_id: handle.item_id().as_u64(),
 6181                                active: Some(handle.item_id()) == active_item_id,
 6182                                preview: pane.is_active_preview_item(handle.item_id()),
 6183                            })
 6184                        })
 6185                        .collect::<Vec<_>>(),
 6186                    pane.has_focus(window, cx),
 6187                    pane.pinned_count(),
 6188                )
 6189            };
 6190
 6191            SerializedPane::new(items, active, pinned_count)
 6192        }
 6193
 6194        fn build_serialized_pane_group(
 6195            pane_group: &Member,
 6196            window: &mut Window,
 6197            cx: &mut App,
 6198        ) -> SerializedPaneGroup {
 6199            match pane_group {
 6200                Member::Axis(PaneAxis {
 6201                    axis,
 6202                    members,
 6203                    flexes,
 6204                    bounding_boxes: _,
 6205                }) => SerializedPaneGroup::Group {
 6206                    axis: SerializedAxis(*axis),
 6207                    children: members
 6208                        .iter()
 6209                        .map(|member| build_serialized_pane_group(member, window, cx))
 6210                        .collect::<Vec<_>>(),
 6211                    flexes: Some(flexes.lock().clone()),
 6212                },
 6213                Member::Pane(pane_handle) => {
 6214                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6215                }
 6216            }
 6217        }
 6218
 6219        fn build_serialized_docks(
 6220            this: &Workspace,
 6221            window: &mut Window,
 6222            cx: &mut App,
 6223        ) -> DockStructure {
 6224            this.capture_dock_state(window, cx)
 6225        }
 6226
 6227        match self.workspace_location(cx) {
 6228            WorkspaceLocation::Location(location, paths) => {
 6229                let breakpoints = self.project.update(cx, |project, cx| {
 6230                    project
 6231                        .breakpoint_store()
 6232                        .read(cx)
 6233                        .all_source_breakpoints(cx)
 6234                });
 6235                let user_toolchains = self
 6236                    .project
 6237                    .read(cx)
 6238                    .user_toolchains(cx)
 6239                    .unwrap_or_default();
 6240
 6241                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6242                let docks = build_serialized_docks(self, window, cx);
 6243                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6244
 6245                let serialized_workspace = SerializedWorkspace {
 6246                    id: database_id,
 6247                    location,
 6248                    paths,
 6249                    center_group,
 6250                    window_bounds,
 6251                    display: Default::default(),
 6252                    docks,
 6253                    centered_layout: self.centered_layout,
 6254                    session_id: self.session_id.clone(),
 6255                    breakpoints,
 6256                    window_id: Some(window.window_handle().window_id().as_u64()),
 6257                    user_toolchains,
 6258                };
 6259
 6260                let db = WorkspaceDb::global(cx);
 6261                window.spawn(cx, async move |_| {
 6262                    db.save_workspace(serialized_workspace).await;
 6263                })
 6264            }
 6265            WorkspaceLocation::DetachFromSession => {
 6266                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6267                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6268                // Save dock state for empty local workspaces
 6269                let docks = build_serialized_docks(self, window, cx);
 6270                let db = WorkspaceDb::global(cx);
 6271                let kvp = db::kvp::KeyValueStore::global(cx);
 6272                window.spawn(cx, async move |_| {
 6273                    db.set_window_open_status(
 6274                        database_id,
 6275                        window_bounds,
 6276                        display.unwrap_or_default(),
 6277                    )
 6278                    .await
 6279                    .log_err();
 6280                    db.set_session_id(database_id, None).await.log_err();
 6281                    persistence::write_default_dock_state(&kvp, docks)
 6282                        .await
 6283                        .log_err();
 6284                })
 6285            }
 6286            WorkspaceLocation::None => {
 6287                // Save dock state for empty non-local workspaces
 6288                let docks = build_serialized_docks(self, window, cx);
 6289                let kvp = db::kvp::KeyValueStore::global(cx);
 6290                window.spawn(cx, async move |_| {
 6291                    persistence::write_default_dock_state(&kvp, docks)
 6292                        .await
 6293                        .log_err();
 6294                })
 6295            }
 6296        }
 6297    }
 6298
 6299    fn has_any_items_open(&self, cx: &App) -> bool {
 6300        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6301    }
 6302
 6303    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6304        let paths = PathList::new(&self.root_paths(cx));
 6305        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6306            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6307        } else if self.project.read(cx).is_local() {
 6308            if !paths.is_empty() || self.has_any_items_open(cx) {
 6309                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6310            } else {
 6311                WorkspaceLocation::DetachFromSession
 6312            }
 6313        } else {
 6314            WorkspaceLocation::None
 6315        }
 6316    }
 6317
 6318    fn update_history(&self, cx: &mut App) {
 6319        let Some(id) = self.database_id() else {
 6320            return;
 6321        };
 6322        if !self.project.read(cx).is_local() {
 6323            return;
 6324        }
 6325        if let Some(manager) = HistoryManager::global(cx) {
 6326            let paths = PathList::new(&self.root_paths(cx));
 6327            manager.update(cx, |this, cx| {
 6328                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6329            });
 6330        }
 6331    }
 6332
 6333    async fn serialize_items(
 6334        this: &WeakEntity<Self>,
 6335        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6336        cx: &mut AsyncWindowContext,
 6337    ) -> Result<()> {
 6338        const CHUNK_SIZE: usize = 200;
 6339
 6340        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6341
 6342        while let Some(items_received) = serializable_items.next().await {
 6343            let unique_items =
 6344                items_received
 6345                    .into_iter()
 6346                    .fold(HashMap::default(), |mut acc, item| {
 6347                        acc.entry(item.item_id()).or_insert(item);
 6348                        acc
 6349                    });
 6350
 6351            // We use into_iter() here so that the references to the items are moved into
 6352            // the tasks and not kept alive while we're sleeping.
 6353            for (_, item) in unique_items.into_iter() {
 6354                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6355                    item.serialize(workspace, false, window, cx)
 6356                }) {
 6357                    cx.background_spawn(async move { task.await.log_err() })
 6358                        .detach();
 6359                }
 6360            }
 6361
 6362            cx.background_executor()
 6363                .timer(SERIALIZATION_THROTTLE_TIME)
 6364                .await;
 6365        }
 6366
 6367        Ok(())
 6368    }
 6369
 6370    pub(crate) fn enqueue_item_serialization(
 6371        &mut self,
 6372        item: Box<dyn SerializableItemHandle>,
 6373    ) -> Result<()> {
 6374        self.serializable_items_tx
 6375            .unbounded_send(item)
 6376            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6377    }
 6378
 6379    pub(crate) fn load_workspace(
 6380        serialized_workspace: SerializedWorkspace,
 6381        paths_to_open: Vec<Option<ProjectPath>>,
 6382        window: &mut Window,
 6383        cx: &mut Context<Workspace>,
 6384    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6385        cx.spawn_in(window, async move |workspace, cx| {
 6386            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6387
 6388            let mut center_group = None;
 6389            let mut center_items = None;
 6390
 6391            // Traverse the splits tree and add to things
 6392            if let Some((group, active_pane, items)) = serialized_workspace
 6393                .center_group
 6394                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6395                .await
 6396            {
 6397                center_items = Some(items);
 6398                center_group = Some((group, active_pane))
 6399            }
 6400
 6401            let mut items_by_project_path = HashMap::default();
 6402            let mut item_ids_by_kind = HashMap::default();
 6403            let mut all_deserialized_items = Vec::default();
 6404            cx.update(|_, cx| {
 6405                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6406                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6407                        item_ids_by_kind
 6408                            .entry(serializable_item_handle.serialized_item_kind())
 6409                            .or_insert(Vec::new())
 6410                            .push(item.item_id().as_u64() as ItemId);
 6411                    }
 6412
 6413                    if let Some(project_path) = item.project_path(cx) {
 6414                        items_by_project_path.insert(project_path, item.clone());
 6415                    }
 6416                    all_deserialized_items.push(item);
 6417                }
 6418            })?;
 6419
 6420            let opened_items = paths_to_open
 6421                .into_iter()
 6422                .map(|path_to_open| {
 6423                    path_to_open
 6424                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6425                })
 6426                .collect::<Vec<_>>();
 6427
 6428            // Remove old panes from workspace panes list
 6429            workspace.update_in(cx, |workspace, window, cx| {
 6430                if let Some((center_group, active_pane)) = center_group {
 6431                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6432
 6433                    // Swap workspace center group
 6434                    workspace.center = PaneGroup::with_root(center_group);
 6435                    workspace.center.set_is_center(true);
 6436                    workspace.center.mark_positions(cx);
 6437
 6438                    if let Some(active_pane) = active_pane {
 6439                        workspace.set_active_pane(&active_pane, window, cx);
 6440                        cx.focus_self(window);
 6441                    } else {
 6442                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6443                    }
 6444                }
 6445
 6446                let docks = serialized_workspace.docks;
 6447
 6448                for (dock, serialized_dock) in [
 6449                    (&mut workspace.right_dock, docks.right),
 6450                    (&mut workspace.left_dock, docks.left),
 6451                    (&mut workspace.bottom_dock, docks.bottom),
 6452                ]
 6453                .iter_mut()
 6454                {
 6455                    dock.update(cx, |dock, cx| {
 6456                        dock.serialized_dock = Some(serialized_dock.clone());
 6457                        dock.restore_state(window, cx);
 6458                    });
 6459                }
 6460
 6461                cx.notify();
 6462            })?;
 6463
 6464            let _ = project
 6465                .update(cx, |project, cx| {
 6466                    project
 6467                        .breakpoint_store()
 6468                        .update(cx, |breakpoint_store, cx| {
 6469                            breakpoint_store
 6470                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6471                        })
 6472                })
 6473                .await;
 6474
 6475            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6476            // after loading the items, we might have different items and in order to avoid
 6477            // the database filling up, we delete items that haven't been loaded now.
 6478            //
 6479            // The items that have been loaded, have been saved after they've been added to the workspace.
 6480            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6481                item_ids_by_kind
 6482                    .into_iter()
 6483                    .map(|(item_kind, loaded_items)| {
 6484                        SerializableItemRegistry::cleanup(
 6485                            item_kind,
 6486                            serialized_workspace.id,
 6487                            loaded_items,
 6488                            window,
 6489                            cx,
 6490                        )
 6491                        .log_err()
 6492                    })
 6493                    .collect::<Vec<_>>()
 6494            })?;
 6495
 6496            futures::future::join_all(clean_up_tasks).await;
 6497
 6498            workspace
 6499                .update_in(cx, |workspace, window, cx| {
 6500                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6501                    workspace.serialize_workspace_internal(window, cx).detach();
 6502
 6503                    // Ensure that we mark the window as edited if we did load dirty items
 6504                    workspace.update_window_edited(window, cx);
 6505                })
 6506                .ok();
 6507
 6508            Ok(opened_items)
 6509        })
 6510    }
 6511
 6512    pub fn key_context(&self, cx: &App) -> KeyContext {
 6513        let mut context = KeyContext::new_with_defaults();
 6514        context.add("Workspace");
 6515        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6516        if let Some(status) = self
 6517            .debugger_provider
 6518            .as_ref()
 6519            .and_then(|provider| provider.active_thread_state(cx))
 6520        {
 6521            match status {
 6522                ThreadStatus::Running | ThreadStatus::Stepping => {
 6523                    context.add("debugger_running");
 6524                }
 6525                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6526                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6527            }
 6528        }
 6529
 6530        if self.left_dock.read(cx).is_open() {
 6531            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6532                context.set("left_dock", active_panel.panel_key());
 6533            }
 6534        }
 6535
 6536        if self.right_dock.read(cx).is_open() {
 6537            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6538                context.set("right_dock", active_panel.panel_key());
 6539            }
 6540        }
 6541
 6542        if self.bottom_dock.read(cx).is_open() {
 6543            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6544                context.set("bottom_dock", active_panel.panel_key());
 6545            }
 6546        }
 6547
 6548        context
 6549    }
 6550
 6551    /// Multiworkspace uses this to add workspace action handling to itself
 6552    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6553        self.add_workspace_actions_listeners(div, window, cx)
 6554            .on_action(cx.listener(
 6555                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6556                    for action in &action_sequence.0 {
 6557                        window.dispatch_action(action.boxed_clone(), cx);
 6558                    }
 6559                },
 6560            ))
 6561            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6562            .on_action(cx.listener(Self::close_all_items_and_panes))
 6563            .on_action(cx.listener(Self::close_item_in_all_panes))
 6564            .on_action(cx.listener(Self::save_all))
 6565            .on_action(cx.listener(Self::send_keystrokes))
 6566            .on_action(cx.listener(Self::add_folder_to_project))
 6567            .on_action(cx.listener(Self::follow_next_collaborator))
 6568            .on_action(cx.listener(Self::activate_pane_at_index))
 6569            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6570            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6571            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6572            .on_action(cx.listener(Self::toggle_theme_mode))
 6573            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6574                let pane = workspace.active_pane().clone();
 6575                workspace.unfollow_in_pane(&pane, window, cx);
 6576            }))
 6577            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6578                workspace
 6579                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6580                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6581            }))
 6582            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6583                workspace
 6584                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6585                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6586            }))
 6587            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6588                workspace
 6589                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6590                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6591            }))
 6592            .on_action(
 6593                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6594                    workspace.activate_previous_pane(window, cx)
 6595                }),
 6596            )
 6597            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6598                workspace.activate_next_pane(window, cx)
 6599            }))
 6600            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6601                workspace.activate_last_pane(window, cx)
 6602            }))
 6603            .on_action(
 6604                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6605                    workspace.activate_next_window(cx)
 6606                }),
 6607            )
 6608            .on_action(
 6609                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6610                    workspace.activate_previous_window(cx)
 6611                }),
 6612            )
 6613            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6614                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6615            }))
 6616            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6617                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6618            }))
 6619            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6620                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6621            }))
 6622            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6623                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6624            }))
 6625            .on_action(cx.listener(
 6626                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6627                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6628                },
 6629            ))
 6630            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6631                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6632            }))
 6633            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6634                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6635            }))
 6636            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6637                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6638            }))
 6639            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6640                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6641            }))
 6642            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6643                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6644                    SplitDirection::Down,
 6645                    SplitDirection::Up,
 6646                    SplitDirection::Right,
 6647                    SplitDirection::Left,
 6648                ];
 6649                for dir in DIRECTION_PRIORITY {
 6650                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6651                        workspace.swap_pane_in_direction(dir, cx);
 6652                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6653                        break;
 6654                    }
 6655                }
 6656            }))
 6657            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6658                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6659            }))
 6660            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6661                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6662            }))
 6663            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6664                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6665            }))
 6666            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6667                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6668            }))
 6669            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6670                this.toggle_dock(DockPosition::Left, window, cx);
 6671            }))
 6672            .on_action(cx.listener(
 6673                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6674                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6675                },
 6676            ))
 6677            .on_action(cx.listener(
 6678                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6679                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6680                },
 6681            ))
 6682            .on_action(cx.listener(
 6683                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6684                    if !workspace.close_active_dock(window, cx) {
 6685                        cx.propagate();
 6686                    }
 6687                },
 6688            ))
 6689            .on_action(
 6690                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6691                    workspace.close_all_docks(window, cx);
 6692                }),
 6693            )
 6694            .on_action(cx.listener(Self::toggle_all_docks))
 6695            .on_action(cx.listener(
 6696                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6697                    workspace.clear_all_notifications(cx);
 6698                },
 6699            ))
 6700            .on_action(cx.listener(
 6701                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6702                    workspace.clear_navigation_history(window, cx);
 6703                },
 6704            ))
 6705            .on_action(cx.listener(
 6706                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6707                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6708                        workspace.suppress_notification(&notification_id, cx);
 6709                    }
 6710                },
 6711            ))
 6712            .on_action(cx.listener(
 6713                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6714                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6715                },
 6716            ))
 6717            .on_action(
 6718                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6719                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6720                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6721                            trusted_worktrees.clear_trusted_paths()
 6722                        });
 6723                        let db = WorkspaceDb::global(cx);
 6724                        cx.spawn(async move |_, cx| {
 6725                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 6726                                cx.update(|cx| reload(cx));
 6727                            }
 6728                        })
 6729                        .detach();
 6730                    }
 6731                }),
 6732            )
 6733            .on_action(cx.listener(
 6734                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6735                    workspace.reopen_closed_item(window, cx).detach();
 6736                },
 6737            ))
 6738            .on_action(cx.listener(
 6739                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6740                    for dock in workspace.all_docks() {
 6741                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6742                            let Some(panel) = dock.read(cx).active_panel() else {
 6743                                return;
 6744                            };
 6745
 6746                            // Set to `None`, then the size will fall back to the default.
 6747                            panel.clone().set_size(None, window, cx);
 6748
 6749                            return;
 6750                        }
 6751                    }
 6752                },
 6753            ))
 6754            .on_action(cx.listener(
 6755                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6756                    for dock in workspace.all_docks() {
 6757                        if let Some(panel) = dock.read(cx).visible_panel() {
 6758                            // Set to `None`, then the size will fall back to the default.
 6759                            panel.clone().set_size(None, window, cx);
 6760                        }
 6761                    }
 6762                },
 6763            ))
 6764            .on_action(cx.listener(
 6765                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6766                    adjust_active_dock_size_by_px(
 6767                        px_with_ui_font_fallback(act.px, cx),
 6768                        workspace,
 6769                        window,
 6770                        cx,
 6771                    );
 6772                },
 6773            ))
 6774            .on_action(cx.listener(
 6775                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6776                    adjust_active_dock_size_by_px(
 6777                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6778                        workspace,
 6779                        window,
 6780                        cx,
 6781                    );
 6782                },
 6783            ))
 6784            .on_action(cx.listener(
 6785                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6786                    adjust_open_docks_size_by_px(
 6787                        px_with_ui_font_fallback(act.px, cx),
 6788                        workspace,
 6789                        window,
 6790                        cx,
 6791                    );
 6792                },
 6793            ))
 6794            .on_action(cx.listener(
 6795                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6796                    adjust_open_docks_size_by_px(
 6797                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6798                        workspace,
 6799                        window,
 6800                        cx,
 6801                    );
 6802                },
 6803            ))
 6804            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6805            .on_action(cx.listener(
 6806                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6807                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6808                        let dock = active_dock.read(cx);
 6809                        if let Some(active_panel) = dock.active_panel() {
 6810                            if active_panel.pane(cx).is_none() {
 6811                                let mut recent_pane: Option<Entity<Pane>> = None;
 6812                                let mut recent_timestamp = 0;
 6813                                for pane_handle in workspace.panes() {
 6814                                    let pane = pane_handle.read(cx);
 6815                                    for entry in pane.activation_history() {
 6816                                        if entry.timestamp > recent_timestamp {
 6817                                            recent_timestamp = entry.timestamp;
 6818                                            recent_pane = Some(pane_handle.clone());
 6819                                        }
 6820                                    }
 6821                                }
 6822
 6823                                if let Some(pane) = recent_pane {
 6824                                    pane.update(cx, |pane, cx| {
 6825                                        let current_index = pane.active_item_index();
 6826                                        let items_len = pane.items_len();
 6827                                        if items_len > 0 {
 6828                                            let next_index = if current_index + 1 < items_len {
 6829                                                current_index + 1
 6830                                            } else {
 6831                                                0
 6832                                            };
 6833                                            pane.activate_item(
 6834                                                next_index, false, false, window, cx,
 6835                                            );
 6836                                        }
 6837                                    });
 6838                                    return;
 6839                                }
 6840                            }
 6841                        }
 6842                    }
 6843                    cx.propagate();
 6844                },
 6845            ))
 6846            .on_action(cx.listener(
 6847                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6848                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6849                        let dock = active_dock.read(cx);
 6850                        if let Some(active_panel) = dock.active_panel() {
 6851                            if active_panel.pane(cx).is_none() {
 6852                                let mut recent_pane: Option<Entity<Pane>> = None;
 6853                                let mut recent_timestamp = 0;
 6854                                for pane_handle in workspace.panes() {
 6855                                    let pane = pane_handle.read(cx);
 6856                                    for entry in pane.activation_history() {
 6857                                        if entry.timestamp > recent_timestamp {
 6858                                            recent_timestamp = entry.timestamp;
 6859                                            recent_pane = Some(pane_handle.clone());
 6860                                        }
 6861                                    }
 6862                                }
 6863
 6864                                if let Some(pane) = recent_pane {
 6865                                    pane.update(cx, |pane, cx| {
 6866                                        let current_index = pane.active_item_index();
 6867                                        let items_len = pane.items_len();
 6868                                        if items_len > 0 {
 6869                                            let prev_index = if current_index > 0 {
 6870                                                current_index - 1
 6871                                            } else {
 6872                                                items_len.saturating_sub(1)
 6873                                            };
 6874                                            pane.activate_item(
 6875                                                prev_index, false, false, window, cx,
 6876                                            );
 6877                                        }
 6878                                    });
 6879                                    return;
 6880                                }
 6881                            }
 6882                        }
 6883                    }
 6884                    cx.propagate();
 6885                },
 6886            ))
 6887            .on_action(cx.listener(
 6888                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6889                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6890                        let dock = active_dock.read(cx);
 6891                        if let Some(active_panel) = dock.active_panel() {
 6892                            if active_panel.pane(cx).is_none() {
 6893                                let active_pane = workspace.active_pane().clone();
 6894                                active_pane.update(cx, |pane, cx| {
 6895                                    pane.close_active_item(action, window, cx)
 6896                                        .detach_and_log_err(cx);
 6897                                });
 6898                                return;
 6899                            }
 6900                        }
 6901                    }
 6902                    cx.propagate();
 6903                },
 6904            ))
 6905            .on_action(
 6906                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6907                    let pane = workspace.active_pane().clone();
 6908                    if let Some(item) = pane.read(cx).active_item() {
 6909                        item.toggle_read_only(window, cx);
 6910                    }
 6911                }),
 6912            )
 6913            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 6914                workspace.focus_center_pane(window, cx);
 6915            }))
 6916            .on_action(cx.listener(Workspace::cancel))
 6917    }
 6918
 6919    #[cfg(any(test, feature = "test-support"))]
 6920    pub fn set_random_database_id(&mut self) {
 6921        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6922    }
 6923
 6924    #[cfg(any(test, feature = "test-support"))]
 6925    pub(crate) fn test_new(
 6926        project: Entity<Project>,
 6927        window: &mut Window,
 6928        cx: &mut Context<Self>,
 6929    ) -> Self {
 6930        use node_runtime::NodeRuntime;
 6931        use session::Session;
 6932
 6933        let client = project.read(cx).client();
 6934        let user_store = project.read(cx).user_store();
 6935        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6936        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6937        window.activate_window();
 6938        let app_state = Arc::new(AppState {
 6939            languages: project.read(cx).languages().clone(),
 6940            workspace_store,
 6941            client,
 6942            user_store,
 6943            fs: project.read(cx).fs().clone(),
 6944            build_window_options: |_, _| Default::default(),
 6945            node_runtime: NodeRuntime::unavailable(),
 6946            session,
 6947        });
 6948        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6949        workspace
 6950            .active_pane
 6951            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6952        workspace
 6953    }
 6954
 6955    pub fn register_action<A: Action>(
 6956        &mut self,
 6957        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6958    ) -> &mut Self {
 6959        let callback = Arc::new(callback);
 6960
 6961        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6962            let callback = callback.clone();
 6963            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6964                (callback)(workspace, event, window, cx)
 6965            }))
 6966        }));
 6967        self
 6968    }
 6969    pub fn register_action_renderer(
 6970        &mut self,
 6971        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6972    ) -> &mut Self {
 6973        self.workspace_actions.push(Box::new(callback));
 6974        self
 6975    }
 6976
 6977    fn add_workspace_actions_listeners(
 6978        &self,
 6979        mut div: Div,
 6980        window: &mut Window,
 6981        cx: &mut Context<Self>,
 6982    ) -> Div {
 6983        for action in self.workspace_actions.iter() {
 6984            div = (action)(div, self, window, cx)
 6985        }
 6986        div
 6987    }
 6988
 6989    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6990        self.modal_layer.read(cx).has_active_modal()
 6991    }
 6992
 6993    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6994        self.modal_layer.read(cx).active_modal()
 6995    }
 6996
 6997    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6998    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6999    /// If no modal is active, the new modal will be shown.
 7000    ///
 7001    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7002    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7003    /// will not be shown.
 7004    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7005    where
 7006        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7007    {
 7008        self.modal_layer.update(cx, |modal_layer, cx| {
 7009            modal_layer.toggle_modal(window, cx, build)
 7010        })
 7011    }
 7012
 7013    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7014        self.modal_layer
 7015            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7016    }
 7017
 7018    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7019        self.toast_layer
 7020            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7021    }
 7022
 7023    pub fn toggle_centered_layout(
 7024        &mut self,
 7025        _: &ToggleCenteredLayout,
 7026        _: &mut Window,
 7027        cx: &mut Context<Self>,
 7028    ) {
 7029        self.centered_layout = !self.centered_layout;
 7030        if let Some(database_id) = self.database_id() {
 7031            let db = WorkspaceDb::global(cx);
 7032            let centered_layout = self.centered_layout;
 7033            cx.background_spawn(async move {
 7034                db.set_centered_layout(database_id, centered_layout).await
 7035            })
 7036            .detach_and_log_err(cx);
 7037        }
 7038        cx.notify();
 7039    }
 7040
 7041    fn adjust_padding(padding: Option<f32>) -> f32 {
 7042        padding
 7043            .unwrap_or(CenteredPaddingSettings::default().0)
 7044            .clamp(
 7045                CenteredPaddingSettings::MIN_PADDING,
 7046                CenteredPaddingSettings::MAX_PADDING,
 7047            )
 7048    }
 7049
 7050    fn render_dock(
 7051        &self,
 7052        position: DockPosition,
 7053        dock: &Entity<Dock>,
 7054        window: &mut Window,
 7055        cx: &mut App,
 7056    ) -> Option<Div> {
 7057        if self.zoomed_position == Some(position) {
 7058            return None;
 7059        }
 7060
 7061        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7062            let pane = panel.pane(cx)?;
 7063            let follower_states = &self.follower_states;
 7064            leader_border_for_pane(follower_states, &pane, window, cx)
 7065        });
 7066
 7067        Some(
 7068            div()
 7069                .flex()
 7070                .flex_none()
 7071                .overflow_hidden()
 7072                .child(dock.clone())
 7073                .children(leader_border),
 7074        )
 7075    }
 7076
 7077    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7078        window
 7079            .root::<MultiWorkspace>()
 7080            .flatten()
 7081            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7082    }
 7083
 7084    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7085        self.zoomed.as_ref()
 7086    }
 7087
 7088    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7089        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7090            return;
 7091        };
 7092        let windows = cx.windows();
 7093        let next_window =
 7094            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7095                || {
 7096                    windows
 7097                        .iter()
 7098                        .cycle()
 7099                        .skip_while(|window| window.window_id() != current_window_id)
 7100                        .nth(1)
 7101                },
 7102            );
 7103
 7104        if let Some(window) = next_window {
 7105            window
 7106                .update(cx, |_, window, _| window.activate_window())
 7107                .ok();
 7108        }
 7109    }
 7110
 7111    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7112        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7113            return;
 7114        };
 7115        let windows = cx.windows();
 7116        let prev_window =
 7117            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7118                || {
 7119                    windows
 7120                        .iter()
 7121                        .rev()
 7122                        .cycle()
 7123                        .skip_while(|window| window.window_id() != current_window_id)
 7124                        .nth(1)
 7125                },
 7126            );
 7127
 7128        if let Some(window) = prev_window {
 7129            window
 7130                .update(cx, |_, window, _| window.activate_window())
 7131                .ok();
 7132        }
 7133    }
 7134
 7135    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7136        if cx.stop_active_drag(window) {
 7137        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7138            dismiss_app_notification(&notification_id, cx);
 7139        } else {
 7140            cx.propagate();
 7141        }
 7142    }
 7143
 7144    fn adjust_dock_size_by_px(
 7145        &mut self,
 7146        panel_size: Pixels,
 7147        dock_pos: DockPosition,
 7148        px: Pixels,
 7149        window: &mut Window,
 7150        cx: &mut Context<Self>,
 7151    ) {
 7152        match dock_pos {
 7153            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 7154            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 7155            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 7156        }
 7157    }
 7158
 7159    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7160        let workspace_width = self.bounds.size.width;
 7161        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7162
 7163        self.right_dock.read_with(cx, |right_dock, cx| {
 7164            let right_dock_size = right_dock
 7165                .active_panel_size(window, cx)
 7166                .unwrap_or(Pixels::ZERO);
 7167            if right_dock_size + size > workspace_width {
 7168                size = workspace_width - right_dock_size
 7169            }
 7170        });
 7171
 7172        self.left_dock.update(cx, |left_dock, cx| {
 7173            if WorkspaceSettings::get_global(cx)
 7174                .resize_all_panels_in_dock
 7175                .contains(&DockPosition::Left)
 7176            {
 7177                left_dock.resize_all_panels(Some(size), window, cx);
 7178            } else {
 7179                left_dock.resize_active_panel(Some(size), window, cx);
 7180            }
 7181        });
 7182    }
 7183
 7184    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7185        let workspace_width = self.bounds.size.width;
 7186        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7187        self.left_dock.read_with(cx, |left_dock, cx| {
 7188            let left_dock_size = left_dock
 7189                .active_panel_size(window, cx)
 7190                .unwrap_or(Pixels::ZERO);
 7191            if left_dock_size + size > workspace_width {
 7192                size = workspace_width - left_dock_size
 7193            }
 7194        });
 7195        self.right_dock.update(cx, |right_dock, cx| {
 7196            if WorkspaceSettings::get_global(cx)
 7197                .resize_all_panels_in_dock
 7198                .contains(&DockPosition::Right)
 7199            {
 7200                right_dock.resize_all_panels(Some(size), window, cx);
 7201            } else {
 7202                right_dock.resize_active_panel(Some(size), window, cx);
 7203            }
 7204        });
 7205    }
 7206
 7207    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7208        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7209        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7210            if WorkspaceSettings::get_global(cx)
 7211                .resize_all_panels_in_dock
 7212                .contains(&DockPosition::Bottom)
 7213            {
 7214                bottom_dock.resize_all_panels(Some(size), window, cx);
 7215            } else {
 7216                bottom_dock.resize_active_panel(Some(size), window, cx);
 7217            }
 7218        });
 7219    }
 7220
 7221    fn toggle_edit_predictions_all_files(
 7222        &mut self,
 7223        _: &ToggleEditPrediction,
 7224        _window: &mut Window,
 7225        cx: &mut Context<Self>,
 7226    ) {
 7227        let fs = self.project().read(cx).fs().clone();
 7228        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7229        update_settings_file(fs, cx, move |file, _| {
 7230            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7231        });
 7232    }
 7233
 7234    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7235        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7236        let next_mode = match current_mode {
 7237            Some(theme::ThemeAppearanceMode::Light) => theme::ThemeAppearanceMode::Dark,
 7238            Some(theme::ThemeAppearanceMode::Dark) => theme::ThemeAppearanceMode::Light,
 7239            Some(theme::ThemeAppearanceMode::System) | None => match cx.theme().appearance() {
 7240                theme::Appearance::Light => theme::ThemeAppearanceMode::Dark,
 7241                theme::Appearance::Dark => theme::ThemeAppearanceMode::Light,
 7242            },
 7243        };
 7244
 7245        let fs = self.project().read(cx).fs().clone();
 7246        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7247            theme::set_mode(settings, next_mode);
 7248        });
 7249    }
 7250
 7251    pub fn show_worktree_trust_security_modal(
 7252        &mut self,
 7253        toggle: bool,
 7254        window: &mut Window,
 7255        cx: &mut Context<Self>,
 7256    ) {
 7257        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7258            if toggle {
 7259                security_modal.update(cx, |security_modal, cx| {
 7260                    security_modal.dismiss(cx);
 7261                })
 7262            } else {
 7263                security_modal.update(cx, |security_modal, cx| {
 7264                    security_modal.refresh_restricted_paths(cx);
 7265                });
 7266            }
 7267        } else {
 7268            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7269                .map(|trusted_worktrees| {
 7270                    trusted_worktrees
 7271                        .read(cx)
 7272                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7273                })
 7274                .unwrap_or(false);
 7275            if has_restricted_worktrees {
 7276                let project = self.project().read(cx);
 7277                let remote_host = project
 7278                    .remote_connection_options(cx)
 7279                    .map(RemoteHostLocation::from);
 7280                let worktree_store = project.worktree_store().downgrade();
 7281                self.toggle_modal(window, cx, |_, cx| {
 7282                    SecurityModal::new(worktree_store, remote_host, cx)
 7283                });
 7284            }
 7285        }
 7286    }
 7287}
 7288
 7289pub trait AnyActiveCall {
 7290    fn entity(&self) -> AnyEntity;
 7291    fn is_in_room(&self, _: &App) -> bool;
 7292    fn room_id(&self, _: &App) -> Option<u64>;
 7293    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7294    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7295    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7296    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7297    fn is_sharing_project(&self, _: &App) -> bool;
 7298    fn has_remote_participants(&self, _: &App) -> bool;
 7299    fn local_participant_is_guest(&self, _: &App) -> bool;
 7300    fn client(&self, _: &App) -> Arc<Client>;
 7301    fn share_on_join(&self, _: &App) -> bool;
 7302    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7303    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7304    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7305    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7306    fn join_project(
 7307        &self,
 7308        _: u64,
 7309        _: Arc<LanguageRegistry>,
 7310        _: Arc<dyn Fs>,
 7311        _: &mut App,
 7312    ) -> Task<Result<Entity<Project>>>;
 7313    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7314    fn subscribe(
 7315        &self,
 7316        _: &mut Window,
 7317        _: &mut Context<Workspace>,
 7318        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7319    ) -> Subscription;
 7320    fn create_shared_screen(
 7321        &self,
 7322        _: PeerId,
 7323        _: &Entity<Pane>,
 7324        _: &mut Window,
 7325        _: &mut App,
 7326    ) -> Option<Entity<SharedScreen>>;
 7327}
 7328
 7329#[derive(Clone)]
 7330pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7331impl Global for GlobalAnyActiveCall {}
 7332
 7333impl GlobalAnyActiveCall {
 7334    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7335        cx.try_global()
 7336    }
 7337
 7338    pub(crate) fn global(cx: &App) -> &Self {
 7339        cx.global()
 7340    }
 7341}
 7342
 7343pub fn merge_conflict_notification_id() -> NotificationId {
 7344    struct MergeConflictNotification;
 7345    NotificationId::unique::<MergeConflictNotification>()
 7346}
 7347
 7348/// Workspace-local view of a remote participant's location.
 7349#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7350pub enum ParticipantLocation {
 7351    SharedProject { project_id: u64 },
 7352    UnsharedProject,
 7353    External,
 7354}
 7355
 7356impl ParticipantLocation {
 7357    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7358        match location
 7359            .and_then(|l| l.variant)
 7360            .context("participant location was not provided")?
 7361        {
 7362            proto::participant_location::Variant::SharedProject(project) => {
 7363                Ok(Self::SharedProject {
 7364                    project_id: project.id,
 7365                })
 7366            }
 7367            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7368            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7369        }
 7370    }
 7371}
 7372/// Workspace-local view of a remote collaborator's state.
 7373/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7374#[derive(Clone)]
 7375pub struct RemoteCollaborator {
 7376    pub user: Arc<User>,
 7377    pub peer_id: PeerId,
 7378    pub location: ParticipantLocation,
 7379    pub participant_index: ParticipantIndex,
 7380}
 7381
 7382pub enum ActiveCallEvent {
 7383    ParticipantLocationChanged { participant_id: PeerId },
 7384    RemoteVideoTracksChanged { participant_id: PeerId },
 7385}
 7386
 7387fn leader_border_for_pane(
 7388    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7389    pane: &Entity<Pane>,
 7390    _: &Window,
 7391    cx: &App,
 7392) -> Option<Div> {
 7393    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7394        if state.pane() == pane {
 7395            Some((*leader_id, state))
 7396        } else {
 7397            None
 7398        }
 7399    })?;
 7400
 7401    let mut leader_color = match leader_id {
 7402        CollaboratorId::PeerId(leader_peer_id) => {
 7403            let leader = GlobalAnyActiveCall::try_global(cx)?
 7404                .0
 7405                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7406
 7407            cx.theme()
 7408                .players()
 7409                .color_for_participant(leader.participant_index.0)
 7410                .cursor
 7411        }
 7412        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7413    };
 7414    leader_color.fade_out(0.3);
 7415    Some(
 7416        div()
 7417            .absolute()
 7418            .size_full()
 7419            .left_0()
 7420            .top_0()
 7421            .border_2()
 7422            .border_color(leader_color),
 7423    )
 7424}
 7425
 7426fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7427    ZED_WINDOW_POSITION
 7428        .zip(*ZED_WINDOW_SIZE)
 7429        .map(|(position, size)| Bounds {
 7430            origin: position,
 7431            size,
 7432        })
 7433}
 7434
 7435fn open_items(
 7436    serialized_workspace: Option<SerializedWorkspace>,
 7437    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7438    window: &mut Window,
 7439    cx: &mut Context<Workspace>,
 7440) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7441    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7442        Workspace::load_workspace(
 7443            serialized_workspace,
 7444            project_paths_to_open
 7445                .iter()
 7446                .map(|(_, project_path)| project_path)
 7447                .cloned()
 7448                .collect(),
 7449            window,
 7450            cx,
 7451        )
 7452    });
 7453
 7454    cx.spawn_in(window, async move |workspace, cx| {
 7455        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7456
 7457        if let Some(restored_items) = restored_items {
 7458            let restored_items = restored_items.await?;
 7459
 7460            let restored_project_paths = restored_items
 7461                .iter()
 7462                .filter_map(|item| {
 7463                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7464                        .ok()
 7465                        .flatten()
 7466                })
 7467                .collect::<HashSet<_>>();
 7468
 7469            for restored_item in restored_items {
 7470                opened_items.push(restored_item.map(Ok));
 7471            }
 7472
 7473            project_paths_to_open
 7474                .iter_mut()
 7475                .for_each(|(_, project_path)| {
 7476                    if let Some(project_path_to_open) = project_path
 7477                        && restored_project_paths.contains(project_path_to_open)
 7478                    {
 7479                        *project_path = None;
 7480                    }
 7481                });
 7482        } else {
 7483            for _ in 0..project_paths_to_open.len() {
 7484                opened_items.push(None);
 7485            }
 7486        }
 7487        assert!(opened_items.len() == project_paths_to_open.len());
 7488
 7489        let tasks =
 7490            project_paths_to_open
 7491                .into_iter()
 7492                .enumerate()
 7493                .map(|(ix, (abs_path, project_path))| {
 7494                    let workspace = workspace.clone();
 7495                    cx.spawn(async move |cx| {
 7496                        let file_project_path = project_path?;
 7497                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7498                            workspace.project().update(cx, |project, cx| {
 7499                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7500                            })
 7501                        });
 7502
 7503                        // We only want to open file paths here. If one of the items
 7504                        // here is a directory, it was already opened further above
 7505                        // with a `find_or_create_worktree`.
 7506                        if let Ok(task) = abs_path_task
 7507                            && task.await.is_none_or(|p| p.is_file())
 7508                        {
 7509                            return Some((
 7510                                ix,
 7511                                workspace
 7512                                    .update_in(cx, |workspace, window, cx| {
 7513                                        workspace.open_path(
 7514                                            file_project_path,
 7515                                            None,
 7516                                            true,
 7517                                            window,
 7518                                            cx,
 7519                                        )
 7520                                    })
 7521                                    .log_err()?
 7522                                    .await,
 7523                            ));
 7524                        }
 7525                        None
 7526                    })
 7527                });
 7528
 7529        let tasks = tasks.collect::<Vec<_>>();
 7530
 7531        let tasks = futures::future::join_all(tasks);
 7532        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7533            opened_items[ix] = Some(path_open_result);
 7534        }
 7535
 7536        Ok(opened_items)
 7537    })
 7538}
 7539
 7540#[derive(Clone)]
 7541enum ActivateInDirectionTarget {
 7542    Pane(Entity<Pane>),
 7543    Dock(Entity<Dock>),
 7544    Sidebar(FocusHandle),
 7545}
 7546
 7547fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7548    window
 7549        .update(cx, |multi_workspace, _, cx| {
 7550            let workspace = multi_workspace.workspace().clone();
 7551            workspace.update(cx, |workspace, cx| {
 7552                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7553                    struct DatabaseFailedNotification;
 7554
 7555                    workspace.show_notification(
 7556                        NotificationId::unique::<DatabaseFailedNotification>(),
 7557                        cx,
 7558                        |cx| {
 7559                            cx.new(|cx| {
 7560                                MessageNotification::new("Failed to load the database file.", cx)
 7561                                    .primary_message("File an Issue")
 7562                                    .primary_icon(IconName::Plus)
 7563                                    .primary_on_click(|window, cx| {
 7564                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7565                                    })
 7566                            })
 7567                        },
 7568                    );
 7569                }
 7570            });
 7571        })
 7572        .log_err();
 7573}
 7574
 7575fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7576    if val == 0 {
 7577        ThemeSettings::get_global(cx).ui_font_size(cx)
 7578    } else {
 7579        px(val as f32)
 7580    }
 7581}
 7582
 7583fn adjust_active_dock_size_by_px(
 7584    px: Pixels,
 7585    workspace: &mut Workspace,
 7586    window: &mut Window,
 7587    cx: &mut Context<Workspace>,
 7588) {
 7589    let Some(active_dock) = workspace
 7590        .all_docks()
 7591        .into_iter()
 7592        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7593    else {
 7594        return;
 7595    };
 7596    let dock = active_dock.read(cx);
 7597    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7598        return;
 7599    };
 7600    let dock_pos = dock.position();
 7601    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7602}
 7603
 7604fn adjust_open_docks_size_by_px(
 7605    px: Pixels,
 7606    workspace: &mut Workspace,
 7607    window: &mut Window,
 7608    cx: &mut Context<Workspace>,
 7609) {
 7610    let docks = workspace
 7611        .all_docks()
 7612        .into_iter()
 7613        .filter_map(|dock| {
 7614            if dock.read(cx).is_open() {
 7615                let dock = dock.read(cx);
 7616                let panel_size = dock.active_panel_size(window, cx)?;
 7617                let dock_pos = dock.position();
 7618                Some((panel_size, dock_pos, px))
 7619            } else {
 7620                None
 7621            }
 7622        })
 7623        .collect::<Vec<_>>();
 7624
 7625    docks
 7626        .into_iter()
 7627        .for_each(|(panel_size, dock_pos, offset)| {
 7628            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7629        });
 7630}
 7631
 7632impl Focusable for Workspace {
 7633    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7634        self.active_pane.focus_handle(cx)
 7635    }
 7636}
 7637
 7638#[derive(Clone)]
 7639struct DraggedDock(DockPosition);
 7640
 7641impl Render for DraggedDock {
 7642    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7643        gpui::Empty
 7644    }
 7645}
 7646
 7647impl Render for Workspace {
 7648    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7649        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7650        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7651            log::info!("Rendered first frame");
 7652        }
 7653
 7654        let centered_layout = self.centered_layout
 7655            && self.center.panes().len() == 1
 7656            && self.active_item(cx).is_some();
 7657        let render_padding = |size| {
 7658            (size > 0.0).then(|| {
 7659                div()
 7660                    .h_full()
 7661                    .w(relative(size))
 7662                    .bg(cx.theme().colors().editor_background)
 7663                    .border_color(cx.theme().colors().pane_group_border)
 7664            })
 7665        };
 7666        let paddings = if centered_layout {
 7667            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7668            (
 7669                render_padding(Self::adjust_padding(
 7670                    settings.left_padding.map(|padding| padding.0),
 7671                )),
 7672                render_padding(Self::adjust_padding(
 7673                    settings.right_padding.map(|padding| padding.0),
 7674                )),
 7675            )
 7676        } else {
 7677            (None, None)
 7678        };
 7679        let ui_font = theme::setup_ui_font(window, cx);
 7680
 7681        let theme = cx.theme().clone();
 7682        let colors = theme.colors();
 7683        let notification_entities = self
 7684            .notifications
 7685            .iter()
 7686            .map(|(_, notification)| notification.entity_id())
 7687            .collect::<Vec<_>>();
 7688        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7689
 7690        div()
 7691            .relative()
 7692            .size_full()
 7693            .flex()
 7694            .flex_col()
 7695            .font(ui_font)
 7696            .gap_0()
 7697                .justify_start()
 7698                .items_start()
 7699                .text_color(colors.text)
 7700                .overflow_hidden()
 7701                .children(self.titlebar_item.clone())
 7702                .on_modifiers_changed(move |_, _, cx| {
 7703                    for &id in &notification_entities {
 7704                        cx.notify(id);
 7705                    }
 7706                })
 7707                .child(
 7708                    div()
 7709                        .size_full()
 7710                        .relative()
 7711                        .flex_1()
 7712                        .flex()
 7713                        .flex_col()
 7714                        .child(
 7715                            div()
 7716                                .id("workspace")
 7717                                .bg(colors.background)
 7718                                .relative()
 7719                                .flex_1()
 7720                                .w_full()
 7721                                .flex()
 7722                                .flex_col()
 7723                                .overflow_hidden()
 7724                                .border_t_1()
 7725                                .border_b_1()
 7726                                .border_color(colors.border)
 7727                                .child({
 7728                                    let this = cx.entity();
 7729                                    canvas(
 7730                                        move |bounds, window, cx| {
 7731                                            this.update(cx, |this, cx| {
 7732                                                let bounds_changed = this.bounds != bounds;
 7733                                                this.bounds = bounds;
 7734
 7735                                                if bounds_changed {
 7736                                                    this.left_dock.update(cx, |dock, cx| {
 7737                                                        dock.clamp_panel_size(
 7738                                                            bounds.size.width,
 7739                                                            window,
 7740                                                            cx,
 7741                                                        )
 7742                                                    });
 7743
 7744                                                    this.right_dock.update(cx, |dock, cx| {
 7745                                                        dock.clamp_panel_size(
 7746                                                            bounds.size.width,
 7747                                                            window,
 7748                                                            cx,
 7749                                                        )
 7750                                                    });
 7751
 7752                                                    this.bottom_dock.update(cx, |dock, cx| {
 7753                                                        dock.clamp_panel_size(
 7754                                                            bounds.size.height,
 7755                                                            window,
 7756                                                            cx,
 7757                                                        )
 7758                                                    });
 7759                                                }
 7760                                            })
 7761                                        },
 7762                                        |_, _, _, _| {},
 7763                                    )
 7764                                    .absolute()
 7765                                    .size_full()
 7766                                })
 7767                                .when(self.zoomed.is_none(), |this| {
 7768                                    this.on_drag_move(cx.listener(
 7769                                        move |workspace,
 7770                                              e: &DragMoveEvent<DraggedDock>,
 7771                                              window,
 7772                                              cx| {
 7773                                            if workspace.previous_dock_drag_coordinates
 7774                                                != Some(e.event.position)
 7775                                            {
 7776                                                workspace.previous_dock_drag_coordinates =
 7777                                                    Some(e.event.position);
 7778
 7779                                                match e.drag(cx).0 {
 7780                                                    DockPosition::Left => {
 7781                                                        workspace.resize_left_dock(
 7782                                                            e.event.position.x
 7783                                                                - workspace.bounds.left(),
 7784                                                            window,
 7785                                                            cx,
 7786                                                        );
 7787                                                    }
 7788                                                    DockPosition::Right => {
 7789                                                        workspace.resize_right_dock(
 7790                                                            workspace.bounds.right()
 7791                                                                - e.event.position.x,
 7792                                                            window,
 7793                                                            cx,
 7794                                                        );
 7795                                                    }
 7796                                                    DockPosition::Bottom => {
 7797                                                        workspace.resize_bottom_dock(
 7798                                                            workspace.bounds.bottom()
 7799                                                                - e.event.position.y,
 7800                                                            window,
 7801                                                            cx,
 7802                                                        );
 7803                                                    }
 7804                                                };
 7805                                                workspace.serialize_workspace(window, cx);
 7806                                            }
 7807                                        },
 7808                                    ))
 7809
 7810                                })
 7811                                .child({
 7812                                    match bottom_dock_layout {
 7813                                        BottomDockLayout::Full => div()
 7814                                            .flex()
 7815                                            .flex_col()
 7816                                            .h_full()
 7817                                            .child(
 7818                                                div()
 7819                                                    .flex()
 7820                                                    .flex_row()
 7821                                                    .flex_1()
 7822                                                    .overflow_hidden()
 7823                                                    .children(self.render_dock(
 7824                                                        DockPosition::Left,
 7825                                                        &self.left_dock,
 7826                                                        window,
 7827                                                        cx,
 7828                                                    ))
 7829
 7830                                                    .child(
 7831                                                        div()
 7832                                                            .flex()
 7833                                                            .flex_col()
 7834                                                            .flex_1()
 7835                                                            .overflow_hidden()
 7836                                                            .child(
 7837                                                                h_flex()
 7838                                                                    .flex_1()
 7839                                                                    .when_some(
 7840                                                                        paddings.0,
 7841                                                                        |this, p| {
 7842                                                                            this.child(
 7843                                                                                p.border_r_1(),
 7844                                                                            )
 7845                                                                        },
 7846                                                                    )
 7847                                                                    .child(self.center.render(
 7848                                                                        self.zoomed.as_ref(),
 7849                                                                        &PaneRenderContext {
 7850                                                                            follower_states:
 7851                                                                                &self.follower_states,
 7852                                                                            active_call: self.active_call(),
 7853                                                                            active_pane: &self.active_pane,
 7854                                                                            app_state: &self.app_state,
 7855                                                                            project: &self.project,
 7856                                                                            workspace: &self.weak_self,
 7857                                                                        },
 7858                                                                        window,
 7859                                                                        cx,
 7860                                                                    ))
 7861                                                                    .when_some(
 7862                                                                        paddings.1,
 7863                                                                        |this, p| {
 7864                                                                            this.child(
 7865                                                                                p.border_l_1(),
 7866                                                                            )
 7867                                                                        },
 7868                                                                    ),
 7869                                                            ),
 7870                                                    )
 7871
 7872                                                    .children(self.render_dock(
 7873                                                        DockPosition::Right,
 7874                                                        &self.right_dock,
 7875                                                        window,
 7876                                                        cx,
 7877                                                    )),
 7878                                            )
 7879                                            .child(div().w_full().children(self.render_dock(
 7880                                                DockPosition::Bottom,
 7881                                                &self.bottom_dock,
 7882                                                window,
 7883                                                cx
 7884                                            ))),
 7885
 7886                                        BottomDockLayout::LeftAligned => div()
 7887                                            .flex()
 7888                                            .flex_row()
 7889                                            .h_full()
 7890                                            .child(
 7891                                                div()
 7892                                                    .flex()
 7893                                                    .flex_col()
 7894                                                    .flex_1()
 7895                                                    .h_full()
 7896                                                    .child(
 7897                                                        div()
 7898                                                            .flex()
 7899                                                            .flex_row()
 7900                                                            .flex_1()
 7901                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7902
 7903                                                            .child(
 7904                                                                div()
 7905                                                                    .flex()
 7906                                                                    .flex_col()
 7907                                                                    .flex_1()
 7908                                                                    .overflow_hidden()
 7909                                                                    .child(
 7910                                                                        h_flex()
 7911                                                                            .flex_1()
 7912                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7913                                                                            .child(self.center.render(
 7914                                                                                self.zoomed.as_ref(),
 7915                                                                                &PaneRenderContext {
 7916                                                                                    follower_states:
 7917                                                                                        &self.follower_states,
 7918                                                                                    active_call: self.active_call(),
 7919                                                                                    active_pane: &self.active_pane,
 7920                                                                                    app_state: &self.app_state,
 7921                                                                                    project: &self.project,
 7922                                                                                    workspace: &self.weak_self,
 7923                                                                                },
 7924                                                                                window,
 7925                                                                                cx,
 7926                                                                            ))
 7927                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7928                                                                    )
 7929                                                            )
 7930
 7931                                                    )
 7932                                                    .child(
 7933                                                        div()
 7934                                                            .w_full()
 7935                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7936                                                    ),
 7937                                            )
 7938                                            .children(self.render_dock(
 7939                                                DockPosition::Right,
 7940                                                &self.right_dock,
 7941                                                window,
 7942                                                cx,
 7943                                            )),
 7944                                        BottomDockLayout::RightAligned => div()
 7945                                            .flex()
 7946                                            .flex_row()
 7947                                            .h_full()
 7948                                            .children(self.render_dock(
 7949                                                DockPosition::Left,
 7950                                                &self.left_dock,
 7951                                                window,
 7952                                                cx,
 7953                                            ))
 7954
 7955                                            .child(
 7956                                                div()
 7957                                                    .flex()
 7958                                                    .flex_col()
 7959                                                    .flex_1()
 7960                                                    .h_full()
 7961                                                    .child(
 7962                                                        div()
 7963                                                            .flex()
 7964                                                            .flex_row()
 7965                                                            .flex_1()
 7966                                                            .child(
 7967                                                                div()
 7968                                                                    .flex()
 7969                                                                    .flex_col()
 7970                                                                    .flex_1()
 7971                                                                    .overflow_hidden()
 7972                                                                    .child(
 7973                                                                        h_flex()
 7974                                                                            .flex_1()
 7975                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7976                                                                            .child(self.center.render(
 7977                                                                                self.zoomed.as_ref(),
 7978                                                                                &PaneRenderContext {
 7979                                                                                    follower_states:
 7980                                                                                        &self.follower_states,
 7981                                                                                    active_call: self.active_call(),
 7982                                                                                    active_pane: &self.active_pane,
 7983                                                                                    app_state: &self.app_state,
 7984                                                                                    project: &self.project,
 7985                                                                                    workspace: &self.weak_self,
 7986                                                                                },
 7987                                                                                window,
 7988                                                                                cx,
 7989                                                                            ))
 7990                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7991                                                                    )
 7992                                                            )
 7993
 7994                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7995                                                    )
 7996                                                    .child(
 7997                                                        div()
 7998                                                            .w_full()
 7999                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8000                                                    ),
 8001                                            ),
 8002                                        BottomDockLayout::Contained => div()
 8003                                            .flex()
 8004                                            .flex_row()
 8005                                            .h_full()
 8006                                            .children(self.render_dock(
 8007                                                DockPosition::Left,
 8008                                                &self.left_dock,
 8009                                                window,
 8010                                                cx,
 8011                                            ))
 8012
 8013                                            .child(
 8014                                                div()
 8015                                                    .flex()
 8016                                                    .flex_col()
 8017                                                    .flex_1()
 8018                                                    .overflow_hidden()
 8019                                                    .child(
 8020                                                        h_flex()
 8021                                                            .flex_1()
 8022                                                            .when_some(paddings.0, |this, p| {
 8023                                                                this.child(p.border_r_1())
 8024                                                            })
 8025                                                            .child(self.center.render(
 8026                                                                self.zoomed.as_ref(),
 8027                                                                &PaneRenderContext {
 8028                                                                    follower_states:
 8029                                                                        &self.follower_states,
 8030                                                                    active_call: self.active_call(),
 8031                                                                    active_pane: &self.active_pane,
 8032                                                                    app_state: &self.app_state,
 8033                                                                    project: &self.project,
 8034                                                                    workspace: &self.weak_self,
 8035                                                                },
 8036                                                                window,
 8037                                                                cx,
 8038                                                            ))
 8039                                                            .when_some(paddings.1, |this, p| {
 8040                                                                this.child(p.border_l_1())
 8041                                                            }),
 8042                                                    )
 8043                                                    .children(self.render_dock(
 8044                                                        DockPosition::Bottom,
 8045                                                        &self.bottom_dock,
 8046                                                        window,
 8047                                                        cx,
 8048                                                    )),
 8049                                            )
 8050
 8051                                            .children(self.render_dock(
 8052                                                DockPosition::Right,
 8053                                                &self.right_dock,
 8054                                                window,
 8055                                                cx,
 8056                                            )),
 8057                                    }
 8058                                })
 8059                                .children(self.zoomed.as_ref().and_then(|view| {
 8060                                    let zoomed_view = view.upgrade()?;
 8061                                    let div = div()
 8062                                        .occlude()
 8063                                        .absolute()
 8064                                        .overflow_hidden()
 8065                                        .border_color(colors.border)
 8066                                        .bg(colors.background)
 8067                                        .child(zoomed_view)
 8068                                        .inset_0()
 8069                                        .shadow_lg();
 8070
 8071                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8072                                       return Some(div);
 8073                                    }
 8074
 8075                                    Some(match self.zoomed_position {
 8076                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8077                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8078                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8079                                        None => {
 8080                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8081                                        }
 8082                                    })
 8083                                }))
 8084                                .children(self.render_notifications(window, cx)),
 8085                        )
 8086                        .when(self.status_bar_visible(cx), |parent| {
 8087                            parent.child(self.status_bar.clone())
 8088                        })
 8089                        .child(self.toast_layer.clone()),
 8090                )
 8091    }
 8092}
 8093
 8094impl WorkspaceStore {
 8095    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8096        Self {
 8097            workspaces: Default::default(),
 8098            _subscriptions: vec![
 8099                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8100                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8101            ],
 8102            client,
 8103        }
 8104    }
 8105
 8106    pub fn update_followers(
 8107        &self,
 8108        project_id: Option<u64>,
 8109        update: proto::update_followers::Variant,
 8110        cx: &App,
 8111    ) -> Option<()> {
 8112        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8113        let room_id = active_call.0.room_id(cx)?;
 8114        self.client
 8115            .send(proto::UpdateFollowers {
 8116                room_id,
 8117                project_id,
 8118                variant: Some(update),
 8119            })
 8120            .log_err()
 8121    }
 8122
 8123    pub async fn handle_follow(
 8124        this: Entity<Self>,
 8125        envelope: TypedEnvelope<proto::Follow>,
 8126        mut cx: AsyncApp,
 8127    ) -> Result<proto::FollowResponse> {
 8128        this.update(&mut cx, |this, cx| {
 8129            let follower = Follower {
 8130                project_id: envelope.payload.project_id,
 8131                peer_id: envelope.original_sender_id()?,
 8132            };
 8133
 8134            let mut response = proto::FollowResponse::default();
 8135
 8136            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8137                let Some(workspace) = weak_workspace.upgrade() else {
 8138                    return false;
 8139                };
 8140                window_handle
 8141                    .update(cx, |_, window, cx| {
 8142                        workspace.update(cx, |workspace, cx| {
 8143                            let handler_response =
 8144                                workspace.handle_follow(follower.project_id, window, cx);
 8145                            if let Some(active_view) = handler_response.active_view
 8146                                && workspace.project.read(cx).remote_id() == follower.project_id
 8147                            {
 8148                                response.active_view = Some(active_view)
 8149                            }
 8150                        });
 8151                    })
 8152                    .is_ok()
 8153            });
 8154
 8155            Ok(response)
 8156        })
 8157    }
 8158
 8159    async fn handle_update_followers(
 8160        this: Entity<Self>,
 8161        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8162        mut cx: AsyncApp,
 8163    ) -> Result<()> {
 8164        let leader_id = envelope.original_sender_id()?;
 8165        let update = envelope.payload;
 8166
 8167        this.update(&mut cx, |this, cx| {
 8168            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8169                let Some(workspace) = weak_workspace.upgrade() else {
 8170                    return false;
 8171                };
 8172                window_handle
 8173                    .update(cx, |_, window, cx| {
 8174                        workspace.update(cx, |workspace, cx| {
 8175                            let project_id = workspace.project.read(cx).remote_id();
 8176                            if update.project_id != project_id && update.project_id.is_some() {
 8177                                return;
 8178                            }
 8179                            workspace.handle_update_followers(
 8180                                leader_id,
 8181                                update.clone(),
 8182                                window,
 8183                                cx,
 8184                            );
 8185                        });
 8186                    })
 8187                    .is_ok()
 8188            });
 8189            Ok(())
 8190        })
 8191    }
 8192
 8193    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8194        self.workspaces.iter().map(|(_, weak)| weak)
 8195    }
 8196
 8197    pub fn workspaces_with_windows(
 8198        &self,
 8199    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8200        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8201    }
 8202}
 8203
 8204impl ViewId {
 8205    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8206        Ok(Self {
 8207            creator: message
 8208                .creator
 8209                .map(CollaboratorId::PeerId)
 8210                .context("creator is missing")?,
 8211            id: message.id,
 8212        })
 8213    }
 8214
 8215    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8216        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8217            Some(proto::ViewId {
 8218                creator: Some(peer_id),
 8219                id: self.id,
 8220            })
 8221        } else {
 8222            None
 8223        }
 8224    }
 8225}
 8226
 8227impl FollowerState {
 8228    fn pane(&self) -> &Entity<Pane> {
 8229        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8230    }
 8231}
 8232
 8233pub trait WorkspaceHandle {
 8234    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8235}
 8236
 8237impl WorkspaceHandle for Entity<Workspace> {
 8238    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8239        self.read(cx)
 8240            .worktrees(cx)
 8241            .flat_map(|worktree| {
 8242                let worktree_id = worktree.read(cx).id();
 8243                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8244                    worktree_id,
 8245                    path: f.path.clone(),
 8246                })
 8247            })
 8248            .collect::<Vec<_>>()
 8249    }
 8250}
 8251
 8252pub async fn last_opened_workspace_location(
 8253    db: &WorkspaceDb,
 8254    fs: &dyn fs::Fs,
 8255) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8256    db.last_workspace(fs)
 8257        .await
 8258        .log_err()
 8259        .flatten()
 8260        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8261}
 8262
 8263pub async fn last_session_workspace_locations(
 8264    db: &WorkspaceDb,
 8265    last_session_id: &str,
 8266    last_session_window_stack: Option<Vec<WindowId>>,
 8267    fs: &dyn fs::Fs,
 8268) -> Option<Vec<SessionWorkspace>> {
 8269    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8270        .await
 8271        .log_err()
 8272}
 8273
 8274pub struct MultiWorkspaceRestoreResult {
 8275    pub window_handle: WindowHandle<MultiWorkspace>,
 8276    pub errors: Vec<anyhow::Error>,
 8277}
 8278
 8279pub async fn restore_multiworkspace(
 8280    multi_workspace: SerializedMultiWorkspace,
 8281    app_state: Arc<AppState>,
 8282    cx: &mut AsyncApp,
 8283) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 8284    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 8285    let mut group_iter = workspaces.into_iter();
 8286    let first = group_iter
 8287        .next()
 8288        .context("window group must not be empty")?;
 8289
 8290    let window_handle = if first.paths.is_empty() {
 8291        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8292            .await?
 8293    } else {
 8294        let OpenResult { window, .. } = cx
 8295            .update(|cx| {
 8296                Workspace::new_local(
 8297                    first.paths.paths().to_vec(),
 8298                    app_state.clone(),
 8299                    None,
 8300                    None,
 8301                    None,
 8302                    true,
 8303                    cx,
 8304                )
 8305            })
 8306            .await?;
 8307        window
 8308    };
 8309
 8310    let mut errors = Vec::new();
 8311
 8312    for session_workspace in group_iter {
 8313        let error = if session_workspace.paths.is_empty() {
 8314            cx.update(|cx| {
 8315                open_workspace_by_id(
 8316                    session_workspace.workspace_id,
 8317                    app_state.clone(),
 8318                    Some(window_handle),
 8319                    cx,
 8320                )
 8321            })
 8322            .await
 8323            .err()
 8324        } else {
 8325            cx.update(|cx| {
 8326                Workspace::new_local(
 8327                    session_workspace.paths.paths().to_vec(),
 8328                    app_state.clone(),
 8329                    Some(window_handle),
 8330                    None,
 8331                    None,
 8332                    false,
 8333                    cx,
 8334                )
 8335            })
 8336            .await
 8337            .err()
 8338        };
 8339
 8340        if let Some(error) = error {
 8341            errors.push(error);
 8342        }
 8343    }
 8344
 8345    if let Some(target_id) = state.active_workspace_id {
 8346        window_handle
 8347            .update(cx, |multi_workspace, window, cx| {
 8348                let target_index = multi_workspace
 8349                    .workspaces()
 8350                    .iter()
 8351                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8352                if let Some(index) = target_index {
 8353                    multi_workspace.activate_index(index, window, cx);
 8354                } else if !multi_workspace.workspaces().is_empty() {
 8355                    multi_workspace.activate_index(0, window, cx);
 8356                }
 8357            })
 8358            .ok();
 8359    } else {
 8360        window_handle
 8361            .update(cx, |multi_workspace, window, cx| {
 8362                if !multi_workspace.workspaces().is_empty() {
 8363                    multi_workspace.activate_index(0, window, cx);
 8364                }
 8365            })
 8366            .ok();
 8367    }
 8368
 8369    if state.sidebar_open {
 8370        window_handle
 8371            .update(cx, |multi_workspace, _, cx| {
 8372                multi_workspace.open_sidebar(cx);
 8373            })
 8374            .ok();
 8375    }
 8376
 8377    window_handle
 8378        .update(cx, |_, window, _cx| {
 8379            window.activate_window();
 8380        })
 8381        .ok();
 8382
 8383    Ok(MultiWorkspaceRestoreResult {
 8384        window_handle,
 8385        errors,
 8386    })
 8387}
 8388
 8389actions!(
 8390    collab,
 8391    [
 8392        /// Opens the channel notes for the current call.
 8393        ///
 8394        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8395        /// channel in the collab panel.
 8396        ///
 8397        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8398        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8399        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8400        OpenChannelNotes,
 8401        /// Mutes your microphone.
 8402        Mute,
 8403        /// Deafens yourself (mute both microphone and speakers).
 8404        Deafen,
 8405        /// Leaves the current call.
 8406        LeaveCall,
 8407        /// Shares the current project with collaborators.
 8408        ShareProject,
 8409        /// Shares your screen with collaborators.
 8410        ScreenShare,
 8411        /// Copies the current room name and session id for debugging purposes.
 8412        CopyRoomId,
 8413    ]
 8414);
 8415
 8416/// Opens the channel notes for a specific channel by its ID.
 8417#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8418#[action(namespace = collab)]
 8419#[serde(deny_unknown_fields)]
 8420pub struct OpenChannelNotesById {
 8421    pub channel_id: u64,
 8422}
 8423
 8424actions!(
 8425    zed,
 8426    [
 8427        /// Opens the Zed log file.
 8428        OpenLog,
 8429        /// Reveals the Zed log file in the system file manager.
 8430        RevealLogInFileManager
 8431    ]
 8432);
 8433
 8434async fn join_channel_internal(
 8435    channel_id: ChannelId,
 8436    app_state: &Arc<AppState>,
 8437    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8438    requesting_workspace: Option<WeakEntity<Workspace>>,
 8439    active_call: &dyn AnyActiveCall,
 8440    cx: &mut AsyncApp,
 8441) -> Result<bool> {
 8442    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8443        if !active_call.is_in_room(cx) {
 8444            return (false, false);
 8445        }
 8446
 8447        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8448        let should_prompt = active_call.is_sharing_project(cx)
 8449            && active_call.has_remote_participants(cx)
 8450            && !already_in_channel;
 8451        (should_prompt, already_in_channel)
 8452    });
 8453
 8454    if already_in_channel {
 8455        let task = cx.update(|cx| {
 8456            if let Some((project, host)) = active_call.most_active_project(cx) {
 8457                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8458            } else {
 8459                None
 8460            }
 8461        });
 8462        if let Some(task) = task {
 8463            task.await?;
 8464        }
 8465        return anyhow::Ok(true);
 8466    }
 8467
 8468    if should_prompt {
 8469        if let Some(multi_workspace) = requesting_window {
 8470            let answer = multi_workspace
 8471                .update(cx, |_, window, cx| {
 8472                    window.prompt(
 8473                        PromptLevel::Warning,
 8474                        "Do you want to switch channels?",
 8475                        Some("Leaving this call will unshare your current project."),
 8476                        &["Yes, Join Channel", "Cancel"],
 8477                        cx,
 8478                    )
 8479                })?
 8480                .await;
 8481
 8482            if answer == Ok(1) {
 8483                return Ok(false);
 8484            }
 8485        } else {
 8486            return Ok(false);
 8487        }
 8488    }
 8489
 8490    let client = cx.update(|cx| active_call.client(cx));
 8491
 8492    let mut client_status = client.status();
 8493
 8494    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8495    'outer: loop {
 8496        let Some(status) = client_status.recv().await else {
 8497            anyhow::bail!("error connecting");
 8498        };
 8499
 8500        match status {
 8501            Status::Connecting
 8502            | Status::Authenticating
 8503            | Status::Authenticated
 8504            | Status::Reconnecting
 8505            | Status::Reauthenticating
 8506            | Status::Reauthenticated => continue,
 8507            Status::Connected { .. } => break 'outer,
 8508            Status::SignedOut | Status::AuthenticationError => {
 8509                return Err(ErrorCode::SignedOut.into());
 8510            }
 8511            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8512            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8513                return Err(ErrorCode::Disconnected.into());
 8514            }
 8515        }
 8516    }
 8517
 8518    let joined = cx
 8519        .update(|cx| active_call.join_channel(channel_id, cx))
 8520        .await?;
 8521
 8522    if !joined {
 8523        return anyhow::Ok(true);
 8524    }
 8525
 8526    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8527
 8528    let task = cx.update(|cx| {
 8529        if let Some((project, host)) = active_call.most_active_project(cx) {
 8530            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8531        }
 8532
 8533        // If you are the first to join a channel, see if you should share your project.
 8534        if !active_call.has_remote_participants(cx)
 8535            && !active_call.local_participant_is_guest(cx)
 8536            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8537        {
 8538            let project = workspace.update(cx, |workspace, cx| {
 8539                let project = workspace.project.read(cx);
 8540
 8541                if !active_call.share_on_join(cx) {
 8542                    return None;
 8543                }
 8544
 8545                if (project.is_local() || project.is_via_remote_server())
 8546                    && project.visible_worktrees(cx).any(|tree| {
 8547                        tree.read(cx)
 8548                            .root_entry()
 8549                            .is_some_and(|entry| entry.is_dir())
 8550                    })
 8551                {
 8552                    Some(workspace.project.clone())
 8553                } else {
 8554                    None
 8555                }
 8556            });
 8557            if let Some(project) = project {
 8558                let share_task = active_call.share_project(project, cx);
 8559                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8560                    share_task.await?;
 8561                    Ok(())
 8562                }));
 8563            }
 8564        }
 8565
 8566        None
 8567    });
 8568    if let Some(task) = task {
 8569        task.await?;
 8570        return anyhow::Ok(true);
 8571    }
 8572    anyhow::Ok(false)
 8573}
 8574
 8575pub fn join_channel(
 8576    channel_id: ChannelId,
 8577    app_state: Arc<AppState>,
 8578    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8579    requesting_workspace: Option<WeakEntity<Workspace>>,
 8580    cx: &mut App,
 8581) -> Task<Result<()>> {
 8582    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8583    cx.spawn(async move |cx| {
 8584        let result = join_channel_internal(
 8585            channel_id,
 8586            &app_state,
 8587            requesting_window,
 8588            requesting_workspace,
 8589            &*active_call.0,
 8590            cx,
 8591        )
 8592        .await;
 8593
 8594        // join channel succeeded, and opened a window
 8595        if matches!(result, Ok(true)) {
 8596            return anyhow::Ok(());
 8597        }
 8598
 8599        // find an existing workspace to focus and show call controls
 8600        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8601        if active_window.is_none() {
 8602            // no open workspaces, make one to show the error in (blergh)
 8603            let OpenResult {
 8604                window: window_handle,
 8605                ..
 8606            } = cx
 8607                .update(|cx| {
 8608                    Workspace::new_local(
 8609                        vec![],
 8610                        app_state.clone(),
 8611                        requesting_window,
 8612                        None,
 8613                        None,
 8614                        true,
 8615                        cx,
 8616                    )
 8617                })
 8618                .await?;
 8619
 8620            window_handle
 8621                .update(cx, |_, window, _cx| {
 8622                    window.activate_window();
 8623                })
 8624                .ok();
 8625
 8626            if result.is_ok() {
 8627                cx.update(|cx| {
 8628                    cx.dispatch_action(&OpenChannelNotes);
 8629                });
 8630            }
 8631
 8632            active_window = Some(window_handle);
 8633        }
 8634
 8635        if let Err(err) = result {
 8636            log::error!("failed to join channel: {}", err);
 8637            if let Some(active_window) = active_window {
 8638                active_window
 8639                    .update(cx, |_, window, cx| {
 8640                        let detail: SharedString = match err.error_code() {
 8641                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8642                            ErrorCode::UpgradeRequired => concat!(
 8643                                "Your are running an unsupported version of Zed. ",
 8644                                "Please update to continue."
 8645                            )
 8646                            .into(),
 8647                            ErrorCode::NoSuchChannel => concat!(
 8648                                "No matching channel was found. ",
 8649                                "Please check the link and try again."
 8650                            )
 8651                            .into(),
 8652                            ErrorCode::Forbidden => concat!(
 8653                                "This channel is private, and you do not have access. ",
 8654                                "Please ask someone to add you and try again."
 8655                            )
 8656                            .into(),
 8657                            ErrorCode::Disconnected => {
 8658                                "Please check your internet connection and try again.".into()
 8659                            }
 8660                            _ => format!("{}\n\nPlease try again.", err).into(),
 8661                        };
 8662                        window.prompt(
 8663                            PromptLevel::Critical,
 8664                            "Failed to join channel",
 8665                            Some(&detail),
 8666                            &["Ok"],
 8667                            cx,
 8668                        )
 8669                    })?
 8670                    .await
 8671                    .ok();
 8672            }
 8673        }
 8674
 8675        // return ok, we showed the error to the user.
 8676        anyhow::Ok(())
 8677    })
 8678}
 8679
 8680pub async fn get_any_active_multi_workspace(
 8681    app_state: Arc<AppState>,
 8682    mut cx: AsyncApp,
 8683) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8684    // find an existing workspace to focus and show call controls
 8685    let active_window = activate_any_workspace_window(&mut cx);
 8686    if active_window.is_none() {
 8687        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, true, cx))
 8688            .await?;
 8689    }
 8690    activate_any_workspace_window(&mut cx).context("could not open zed")
 8691}
 8692
 8693fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8694    cx.update(|cx| {
 8695        if let Some(workspace_window) = cx
 8696            .active_window()
 8697            .and_then(|window| window.downcast::<MultiWorkspace>())
 8698        {
 8699            return Some(workspace_window);
 8700        }
 8701
 8702        for window in cx.windows() {
 8703            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8704                workspace_window
 8705                    .update(cx, |_, window, _| window.activate_window())
 8706                    .ok();
 8707                return Some(workspace_window);
 8708            }
 8709        }
 8710        None
 8711    })
 8712}
 8713
 8714pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8715    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 8716}
 8717
 8718pub fn workspace_windows_for_location(
 8719    serialized_location: &SerializedWorkspaceLocation,
 8720    cx: &App,
 8721) -> Vec<WindowHandle<MultiWorkspace>> {
 8722    cx.windows()
 8723        .into_iter()
 8724        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8725        .filter(|multi_workspace| {
 8726            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 8727                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 8728                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 8729                }
 8730                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 8731                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 8732                    a.distro_name == b.distro_name
 8733                }
 8734                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 8735                    a.container_id == b.container_id
 8736                }
 8737                #[cfg(any(test, feature = "test-support"))]
 8738                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 8739                    a.id == b.id
 8740                }
 8741                _ => false,
 8742            };
 8743
 8744            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8745                multi_workspace.workspaces().iter().any(|workspace| {
 8746                    match workspace.read(cx).workspace_location(cx) {
 8747                        WorkspaceLocation::Location(location, _) => {
 8748                            match (&location, serialized_location) {
 8749                                (
 8750                                    SerializedWorkspaceLocation::Local,
 8751                                    SerializedWorkspaceLocation::Local,
 8752                                ) => true,
 8753                                (
 8754                                    SerializedWorkspaceLocation::Remote(a),
 8755                                    SerializedWorkspaceLocation::Remote(b),
 8756                                ) => same_host(a, b),
 8757                                _ => false,
 8758                            }
 8759                        }
 8760                        _ => false,
 8761                    }
 8762                })
 8763            })
 8764        })
 8765        .collect()
 8766}
 8767
 8768pub async fn find_existing_workspace(
 8769    abs_paths: &[PathBuf],
 8770    open_options: &OpenOptions,
 8771    location: &SerializedWorkspaceLocation,
 8772    cx: &mut AsyncApp,
 8773) -> (
 8774    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 8775    OpenVisible,
 8776) {
 8777    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 8778    let mut open_visible = OpenVisible::All;
 8779    let mut best_match = None;
 8780
 8781    if open_options.open_new_workspace != Some(true) {
 8782        cx.update(|cx| {
 8783            for window in workspace_windows_for_location(location, cx) {
 8784                if let Ok(multi_workspace) = window.read(cx) {
 8785                    for workspace in multi_workspace.workspaces() {
 8786                        let project = workspace.read(cx).project.read(cx);
 8787                        let m = project.visibility_for_paths(
 8788                            abs_paths,
 8789                            open_options.open_new_workspace == None,
 8790                            cx,
 8791                        );
 8792                        if m > best_match {
 8793                            existing = Some((window, workspace.clone()));
 8794                            best_match = m;
 8795                        } else if best_match.is_none()
 8796                            && open_options.open_new_workspace == Some(false)
 8797                        {
 8798                            existing = Some((window, workspace.clone()))
 8799                        }
 8800                    }
 8801                }
 8802            }
 8803        });
 8804
 8805        let all_paths_are_files = existing
 8806            .as_ref()
 8807            .and_then(|(_, target_workspace)| {
 8808                cx.update(|cx| {
 8809                    let workspace = target_workspace.read(cx);
 8810                    let project = workspace.project.read(cx);
 8811                    let path_style = workspace.path_style(cx);
 8812                    Some(!abs_paths.iter().any(|path| {
 8813                        let path = util::paths::SanitizedPath::new(path);
 8814                        project.worktrees(cx).any(|worktree| {
 8815                            let worktree = worktree.read(cx);
 8816                            let abs_path = worktree.abs_path();
 8817                            path_style
 8818                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 8819                                .and_then(|rel| worktree.entry_for_path(&rel))
 8820                                .is_some_and(|e| e.is_dir())
 8821                        })
 8822                    }))
 8823                })
 8824            })
 8825            .unwrap_or(false);
 8826
 8827        if open_options.open_new_workspace.is_none()
 8828            && existing.is_some()
 8829            && open_options.wait
 8830            && all_paths_are_files
 8831        {
 8832            cx.update(|cx| {
 8833                let windows = workspace_windows_for_location(location, cx);
 8834                let window = cx
 8835                    .active_window()
 8836                    .and_then(|window| window.downcast::<MultiWorkspace>())
 8837                    .filter(|window| windows.contains(window))
 8838                    .or_else(|| windows.into_iter().next());
 8839                if let Some(window) = window {
 8840                    if let Ok(multi_workspace) = window.read(cx) {
 8841                        let active_workspace = multi_workspace.workspace().clone();
 8842                        existing = Some((window, active_workspace));
 8843                        open_visible = OpenVisible::None;
 8844                    }
 8845                }
 8846            });
 8847        }
 8848    }
 8849    (existing, open_visible)
 8850}
 8851
 8852#[derive(Default, Clone)]
 8853pub struct OpenOptions {
 8854    pub visible: Option<OpenVisible>,
 8855    pub focus: Option<bool>,
 8856    pub open_new_workspace: Option<bool>,
 8857    pub wait: bool,
 8858    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 8859    pub env: Option<HashMap<String, String>>,
 8860}
 8861
 8862/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 8863/// or [`Workspace::open_workspace_for_paths`].
 8864pub struct OpenResult {
 8865    pub window: WindowHandle<MultiWorkspace>,
 8866    pub workspace: Entity<Workspace>,
 8867    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8868}
 8869
 8870/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 8871pub fn open_workspace_by_id(
 8872    workspace_id: WorkspaceId,
 8873    app_state: Arc<AppState>,
 8874    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8875    cx: &mut App,
 8876) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 8877    let project_handle = Project::local(
 8878        app_state.client.clone(),
 8879        app_state.node_runtime.clone(),
 8880        app_state.user_store.clone(),
 8881        app_state.languages.clone(),
 8882        app_state.fs.clone(),
 8883        None,
 8884        project::LocalProjectFlags {
 8885            init_worktree_trust: true,
 8886            ..project::LocalProjectFlags::default()
 8887        },
 8888        cx,
 8889    );
 8890
 8891    let db = WorkspaceDb::global(cx);
 8892    let kvp = db::kvp::KeyValueStore::global(cx);
 8893    cx.spawn(async move |cx| {
 8894        let serialized_workspace = db
 8895            .workspace_for_id(workspace_id)
 8896            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 8897
 8898        let centered_layout = serialized_workspace.centered_layout;
 8899
 8900        let (window, workspace) = if let Some(window) = requesting_window {
 8901            let workspace = window.update(cx, |multi_workspace, window, cx| {
 8902                let workspace = cx.new(|cx| {
 8903                    let mut workspace = Workspace::new(
 8904                        Some(workspace_id),
 8905                        project_handle.clone(),
 8906                        app_state.clone(),
 8907                        window,
 8908                        cx,
 8909                    );
 8910                    workspace.centered_layout = centered_layout;
 8911                    workspace
 8912                });
 8913                multi_workspace.add_workspace(workspace.clone(), cx);
 8914                workspace
 8915            })?;
 8916            (window, workspace)
 8917        } else {
 8918            let window_bounds_override = window_bounds_env_override();
 8919
 8920            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 8921                (Some(WindowBounds::Windowed(bounds)), None)
 8922            } else if let Some(display) = serialized_workspace.display
 8923                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 8924            {
 8925                (Some(bounds.0), Some(display))
 8926            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 8927                (Some(bounds), Some(display))
 8928            } else {
 8929                (None, None)
 8930            };
 8931
 8932            let options = cx.update(|cx| {
 8933                let mut options = (app_state.build_window_options)(display, cx);
 8934                options.window_bounds = window_bounds;
 8935                options
 8936            });
 8937
 8938            let window = cx.open_window(options, {
 8939                let app_state = app_state.clone();
 8940                let project_handle = project_handle.clone();
 8941                move |window, cx| {
 8942                    let workspace = cx.new(|cx| {
 8943                        let mut workspace = Workspace::new(
 8944                            Some(workspace_id),
 8945                            project_handle,
 8946                            app_state,
 8947                            window,
 8948                            cx,
 8949                        );
 8950                        workspace.centered_layout = centered_layout;
 8951                        workspace
 8952                    });
 8953                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 8954                }
 8955            })?;
 8956
 8957            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 8958                multi_workspace.workspace().clone()
 8959            })?;
 8960
 8961            (window, workspace)
 8962        };
 8963
 8964        notify_if_database_failed(window, cx);
 8965
 8966        // Restore items from the serialized workspace
 8967        window
 8968            .update(cx, |_, window, cx| {
 8969                workspace.update(cx, |_workspace, cx| {
 8970                    open_items(Some(serialized_workspace), vec![], window, cx)
 8971                })
 8972            })?
 8973            .await?;
 8974
 8975        window.update(cx, |_, window, cx| {
 8976            workspace.update(cx, |workspace, cx| {
 8977                workspace.serialize_workspace(window, cx);
 8978            });
 8979        })?;
 8980
 8981        Ok(window)
 8982    })
 8983}
 8984
 8985#[allow(clippy::type_complexity)]
 8986pub fn open_paths(
 8987    abs_paths: &[PathBuf],
 8988    app_state: Arc<AppState>,
 8989    open_options: OpenOptions,
 8990    cx: &mut App,
 8991) -> Task<anyhow::Result<OpenResult>> {
 8992    let abs_paths = abs_paths.to_vec();
 8993    #[cfg(target_os = "windows")]
 8994    let wsl_path = abs_paths
 8995        .iter()
 8996        .find_map(|p| util::paths::WslPath::from_path(p));
 8997
 8998    cx.spawn(async move |cx| {
 8999        let (mut existing, mut open_visible) = find_existing_workspace(
 9000            &abs_paths,
 9001            &open_options,
 9002            &SerializedWorkspaceLocation::Local,
 9003            cx,
 9004        )
 9005        .await;
 9006
 9007        // Fallback: if no workspace contains the paths and all paths are files,
 9008        // prefer an existing local workspace window (active window first).
 9009        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9010            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9011            let all_metadatas = futures::future::join_all(all_paths)
 9012                .await
 9013                .into_iter()
 9014                .filter_map(|result| result.ok().flatten())
 9015                .collect::<Vec<_>>();
 9016
 9017            if all_metadatas.iter().all(|file| !file.is_dir) {
 9018                cx.update(|cx| {
 9019                    let windows = workspace_windows_for_location(
 9020                        &SerializedWorkspaceLocation::Local,
 9021                        cx,
 9022                    );
 9023                    let window = cx
 9024                        .active_window()
 9025                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9026                        .filter(|window| windows.contains(window))
 9027                        .or_else(|| windows.into_iter().next());
 9028                    if let Some(window) = window {
 9029                        if let Ok(multi_workspace) = window.read(cx) {
 9030                            let active_workspace = multi_workspace.workspace().clone();
 9031                            existing = Some((window, active_workspace));
 9032                            open_visible = OpenVisible::None;
 9033                        }
 9034                    }
 9035                });
 9036            }
 9037        }
 9038
 9039        let result = if let Some((existing, target_workspace)) = existing {
 9040            let open_task = existing
 9041                .update(cx, |multi_workspace, window, cx| {
 9042                    window.activate_window();
 9043                    multi_workspace.activate(target_workspace.clone(), cx);
 9044                    target_workspace.update(cx, |workspace, cx| {
 9045                        workspace.open_paths(
 9046                            abs_paths,
 9047                            OpenOptions {
 9048                                visible: Some(open_visible),
 9049                                ..Default::default()
 9050                            },
 9051                            None,
 9052                            window,
 9053                            cx,
 9054                        )
 9055                    })
 9056                })?
 9057                .await;
 9058
 9059            _ = existing.update(cx, |multi_workspace, _, cx| {
 9060                let workspace = multi_workspace.workspace().clone();
 9061                workspace.update(cx, |workspace, cx| {
 9062                    for item in open_task.iter().flatten() {
 9063                        if let Err(e) = item {
 9064                            workspace.show_error(&e, cx);
 9065                        }
 9066                    }
 9067                });
 9068            });
 9069
 9070            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9071        } else {
 9072            let result = cx
 9073                .update(move |cx| {
 9074                    Workspace::new_local(
 9075                        abs_paths,
 9076                        app_state.clone(),
 9077                        open_options.replace_window,
 9078                        open_options.env,
 9079                        None,
 9080                        true,
 9081                        cx,
 9082                    )
 9083                })
 9084                .await;
 9085
 9086            if let Ok(ref result) = result {
 9087                result.window
 9088                    .update(cx, |_, window, _cx| {
 9089                        window.activate_window();
 9090                    })
 9091                    .log_err();
 9092            }
 9093
 9094            result
 9095        };
 9096
 9097        #[cfg(target_os = "windows")]
 9098        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9099            && let Ok(ref result) = result
 9100        {
 9101            result.window
 9102                .update(cx, move |multi_workspace, _window, cx| {
 9103                    struct OpenInWsl;
 9104                    let workspace = multi_workspace.workspace().clone();
 9105                    workspace.update(cx, |workspace, cx| {
 9106                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9107                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9108                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9109                            cx.new(move |cx| {
 9110                                MessageNotification::new(msg, cx)
 9111                                    .primary_message("Open in WSL")
 9112                                    .primary_icon(IconName::FolderOpen)
 9113                                    .primary_on_click(move |window, cx| {
 9114                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9115                                                distro: remote::WslConnectionOptions {
 9116                                                        distro_name: distro.clone(),
 9117                                                    user: None,
 9118                                                },
 9119                                                paths: vec![path.clone().into()],
 9120                                            }), cx)
 9121                                    })
 9122                            })
 9123                        });
 9124                    });
 9125                })
 9126                .unwrap();
 9127        };
 9128        result
 9129    })
 9130}
 9131
 9132pub fn open_new(
 9133    open_options: OpenOptions,
 9134    app_state: Arc<AppState>,
 9135    cx: &mut App,
 9136    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9137) -> Task<anyhow::Result<()>> {
 9138    let task = Workspace::new_local(
 9139        Vec::new(),
 9140        app_state,
 9141        open_options.replace_window,
 9142        open_options.env,
 9143        Some(Box::new(init)),
 9144        true,
 9145        cx,
 9146    );
 9147    cx.spawn(async move |cx| {
 9148        let OpenResult { window, .. } = task.await?;
 9149        window
 9150            .update(cx, |_, window, _cx| {
 9151                window.activate_window();
 9152            })
 9153            .ok();
 9154        Ok(())
 9155    })
 9156}
 9157
 9158pub fn create_and_open_local_file(
 9159    path: &'static Path,
 9160    window: &mut Window,
 9161    cx: &mut Context<Workspace>,
 9162    default_content: impl 'static + Send + FnOnce() -> Rope,
 9163) -> Task<Result<Box<dyn ItemHandle>>> {
 9164    cx.spawn_in(window, async move |workspace, cx| {
 9165        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9166        if !fs.is_file(path).await {
 9167            fs.create_file(path, Default::default()).await?;
 9168            fs.save(path, &default_content(), Default::default())
 9169                .await?;
 9170        }
 9171
 9172        workspace
 9173            .update_in(cx, |workspace, window, cx| {
 9174                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9175                    let path = workspace
 9176                        .project
 9177                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9178                    cx.spawn_in(window, async move |workspace, cx| {
 9179                        let path = path.await?;
 9180                        let mut items = workspace
 9181                            .update_in(cx, |workspace, window, cx| {
 9182                                workspace.open_paths(
 9183                                    vec![path.to_path_buf()],
 9184                                    OpenOptions {
 9185                                        visible: Some(OpenVisible::None),
 9186                                        ..Default::default()
 9187                                    },
 9188                                    None,
 9189                                    window,
 9190                                    cx,
 9191                                )
 9192                            })?
 9193                            .await;
 9194                        let item = items.pop().flatten();
 9195                        item.with_context(|| format!("path {path:?} is not a file"))?
 9196                    })
 9197                })
 9198            })?
 9199            .await?
 9200            .await
 9201    })
 9202}
 9203
 9204pub fn open_remote_project_with_new_connection(
 9205    window: WindowHandle<MultiWorkspace>,
 9206    remote_connection: Arc<dyn RemoteConnection>,
 9207    cancel_rx: oneshot::Receiver<()>,
 9208    delegate: Arc<dyn RemoteClientDelegate>,
 9209    app_state: Arc<AppState>,
 9210    paths: Vec<PathBuf>,
 9211    cx: &mut App,
 9212) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9213    cx.spawn(async move |cx| {
 9214        let (workspace_id, serialized_workspace) =
 9215            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9216                .await?;
 9217
 9218        let session = match cx
 9219            .update(|cx| {
 9220                remote::RemoteClient::new(
 9221                    ConnectionIdentifier::Workspace(workspace_id.0),
 9222                    remote_connection,
 9223                    cancel_rx,
 9224                    delegate,
 9225                    cx,
 9226                )
 9227            })
 9228            .await?
 9229        {
 9230            Some(result) => result,
 9231            None => return Ok(Vec::new()),
 9232        };
 9233
 9234        let project = cx.update(|cx| {
 9235            project::Project::remote(
 9236                session,
 9237                app_state.client.clone(),
 9238                app_state.node_runtime.clone(),
 9239                app_state.user_store.clone(),
 9240                app_state.languages.clone(),
 9241                app_state.fs.clone(),
 9242                true,
 9243                cx,
 9244            )
 9245        });
 9246
 9247        open_remote_project_inner(
 9248            project,
 9249            paths,
 9250            workspace_id,
 9251            serialized_workspace,
 9252            app_state,
 9253            window,
 9254            cx,
 9255        )
 9256        .await
 9257    })
 9258}
 9259
 9260pub fn open_remote_project_with_existing_connection(
 9261    connection_options: RemoteConnectionOptions,
 9262    project: Entity<Project>,
 9263    paths: Vec<PathBuf>,
 9264    app_state: Arc<AppState>,
 9265    window: WindowHandle<MultiWorkspace>,
 9266    cx: &mut AsyncApp,
 9267) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9268    cx.spawn(async move |cx| {
 9269        let (workspace_id, serialized_workspace) =
 9270            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9271
 9272        open_remote_project_inner(
 9273            project,
 9274            paths,
 9275            workspace_id,
 9276            serialized_workspace,
 9277            app_state,
 9278            window,
 9279            cx,
 9280        )
 9281        .await
 9282    })
 9283}
 9284
 9285async fn open_remote_project_inner(
 9286    project: Entity<Project>,
 9287    paths: Vec<PathBuf>,
 9288    workspace_id: WorkspaceId,
 9289    serialized_workspace: Option<SerializedWorkspace>,
 9290    app_state: Arc<AppState>,
 9291    window: WindowHandle<MultiWorkspace>,
 9292    cx: &mut AsyncApp,
 9293) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9294    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9295    let toolchains = db.toolchains(workspace_id).await?;
 9296    for (toolchain, worktree_path, path) in toolchains {
 9297        project
 9298            .update(cx, |this, cx| {
 9299                let Some(worktree_id) =
 9300                    this.find_worktree(&worktree_path, cx)
 9301                        .and_then(|(worktree, rel_path)| {
 9302                            if rel_path.is_empty() {
 9303                                Some(worktree.read(cx).id())
 9304                            } else {
 9305                                None
 9306                            }
 9307                        })
 9308                else {
 9309                    return Task::ready(None);
 9310                };
 9311
 9312                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9313            })
 9314            .await;
 9315    }
 9316    let mut project_paths_to_open = vec![];
 9317    let mut project_path_errors = vec![];
 9318
 9319    for path in paths {
 9320        let result = cx
 9321            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9322            .await;
 9323        match result {
 9324            Ok((_, project_path)) => {
 9325                project_paths_to_open.push((path.clone(), Some(project_path)));
 9326            }
 9327            Err(error) => {
 9328                project_path_errors.push(error);
 9329            }
 9330        };
 9331    }
 9332
 9333    if project_paths_to_open.is_empty() {
 9334        return Err(project_path_errors.pop().context("no paths given")?);
 9335    }
 9336
 9337    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9338        telemetry::event!("SSH Project Opened");
 9339
 9340        let new_workspace = cx.new(|cx| {
 9341            let mut workspace =
 9342                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9343            workspace.update_history(cx);
 9344
 9345            if let Some(ref serialized) = serialized_workspace {
 9346                workspace.centered_layout = serialized.centered_layout;
 9347            }
 9348
 9349            workspace
 9350        });
 9351
 9352        multi_workspace.activate(new_workspace.clone(), cx);
 9353        new_workspace
 9354    })?;
 9355
 9356    let items = window
 9357        .update(cx, |_, window, cx| {
 9358            window.activate_window();
 9359            workspace.update(cx, |_workspace, cx| {
 9360                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9361            })
 9362        })?
 9363        .await?;
 9364
 9365    workspace.update(cx, |workspace, cx| {
 9366        for error in project_path_errors {
 9367            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9368                if let Some(path) = error.error_tag("path") {
 9369                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9370                }
 9371            } else {
 9372                workspace.show_error(&error, cx)
 9373            }
 9374        }
 9375    });
 9376
 9377    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9378}
 9379
 9380fn deserialize_remote_project(
 9381    connection_options: RemoteConnectionOptions,
 9382    paths: Vec<PathBuf>,
 9383    cx: &AsyncApp,
 9384) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9385    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9386    cx.background_spawn(async move {
 9387        let remote_connection_id = db
 9388            .get_or_create_remote_connection(connection_options)
 9389            .await?;
 9390
 9391        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9392
 9393        let workspace_id = if let Some(workspace_id) =
 9394            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9395        {
 9396            workspace_id
 9397        } else {
 9398            db.next_id().await?
 9399        };
 9400
 9401        Ok((workspace_id, serialized_workspace))
 9402    })
 9403}
 9404
 9405pub fn join_in_room_project(
 9406    project_id: u64,
 9407    follow_user_id: u64,
 9408    app_state: Arc<AppState>,
 9409    cx: &mut App,
 9410) -> Task<Result<()>> {
 9411    let windows = cx.windows();
 9412    cx.spawn(async move |cx| {
 9413        let existing_window_and_workspace: Option<(
 9414            WindowHandle<MultiWorkspace>,
 9415            Entity<Workspace>,
 9416        )> = windows.into_iter().find_map(|window_handle| {
 9417            window_handle
 9418                .downcast::<MultiWorkspace>()
 9419                .and_then(|window_handle| {
 9420                    window_handle
 9421                        .update(cx, |multi_workspace, _window, cx| {
 9422                            for workspace in multi_workspace.workspaces() {
 9423                                if workspace.read(cx).project().read(cx).remote_id()
 9424                                    == Some(project_id)
 9425                                {
 9426                                    return Some((window_handle, workspace.clone()));
 9427                                }
 9428                            }
 9429                            None
 9430                        })
 9431                        .unwrap_or(None)
 9432                })
 9433        });
 9434
 9435        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9436            existing_window_and_workspace
 9437        {
 9438            existing_window
 9439                .update(cx, |multi_workspace, _, cx| {
 9440                    multi_workspace.activate(target_workspace, cx);
 9441                })
 9442                .ok();
 9443            existing_window
 9444        } else {
 9445            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9446            let project = cx
 9447                .update(|cx| {
 9448                    active_call.0.join_project(
 9449                        project_id,
 9450                        app_state.languages.clone(),
 9451                        app_state.fs.clone(),
 9452                        cx,
 9453                    )
 9454                })
 9455                .await?;
 9456
 9457            let window_bounds_override = window_bounds_env_override();
 9458            cx.update(|cx| {
 9459                let mut options = (app_state.build_window_options)(None, cx);
 9460                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9461                cx.open_window(options, |window, cx| {
 9462                    let workspace = cx.new(|cx| {
 9463                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9464                    });
 9465                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9466                })
 9467            })?
 9468        };
 9469
 9470        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9471            cx.activate(true);
 9472            window.activate_window();
 9473
 9474            // We set the active workspace above, so this is the correct workspace.
 9475            let workspace = multi_workspace.workspace().clone();
 9476            workspace.update(cx, |workspace, cx| {
 9477                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9478                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9479                    .or_else(|| {
 9480                        // If we couldn't follow the given user, follow the host instead.
 9481                        let collaborator = workspace
 9482                            .project()
 9483                            .read(cx)
 9484                            .collaborators()
 9485                            .values()
 9486                            .find(|collaborator| collaborator.is_host)?;
 9487                        Some(collaborator.peer_id)
 9488                    });
 9489
 9490                if let Some(follow_peer_id) = follow_peer_id {
 9491                    workspace.follow(follow_peer_id, window, cx);
 9492                }
 9493            });
 9494        })?;
 9495
 9496        anyhow::Ok(())
 9497    })
 9498}
 9499
 9500pub fn reload(cx: &mut App) {
 9501    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9502    let mut workspace_windows = cx
 9503        .windows()
 9504        .into_iter()
 9505        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9506        .collect::<Vec<_>>();
 9507
 9508    // If multiple windows have unsaved changes, and need a save prompt,
 9509    // prompt in the active window before switching to a different window.
 9510    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9511
 9512    let mut prompt = None;
 9513    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9514        prompt = window
 9515            .update(cx, |_, window, cx| {
 9516                window.prompt(
 9517                    PromptLevel::Info,
 9518                    "Are you sure you want to restart?",
 9519                    None,
 9520                    &["Restart", "Cancel"],
 9521                    cx,
 9522                )
 9523            })
 9524            .ok();
 9525    }
 9526
 9527    cx.spawn(async move |cx| {
 9528        if let Some(prompt) = prompt {
 9529            let answer = prompt.await?;
 9530            if answer != 0 {
 9531                return anyhow::Ok(());
 9532            }
 9533        }
 9534
 9535        // If the user cancels any save prompt, then keep the app open.
 9536        for window in workspace_windows {
 9537            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9538                let workspace = multi_workspace.workspace().clone();
 9539                workspace.update(cx, |workspace, cx| {
 9540                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9541                })
 9542            }) && !should_close.await?
 9543            {
 9544                return anyhow::Ok(());
 9545            }
 9546        }
 9547        cx.update(|cx| cx.restart());
 9548        anyhow::Ok(())
 9549    })
 9550    .detach_and_log_err(cx);
 9551}
 9552
 9553fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9554    let mut parts = value.split(',');
 9555    let x: usize = parts.next()?.parse().ok()?;
 9556    let y: usize = parts.next()?.parse().ok()?;
 9557    Some(point(px(x as f32), px(y as f32)))
 9558}
 9559
 9560fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9561    let mut parts = value.split(',');
 9562    let width: usize = parts.next()?.parse().ok()?;
 9563    let height: usize = parts.next()?.parse().ok()?;
 9564    Some(size(px(width as f32), px(height as f32)))
 9565}
 9566
 9567/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9568/// appropriate.
 9569///
 9570/// The `border_radius_tiling` parameter allows overriding which corners get
 9571/// rounded, independently of the actual window tiling state. This is used
 9572/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9573/// we want square corners on the left (so the sidebar appears flush with the
 9574/// window edge) but we still need the shadow padding for proper visual
 9575/// appearance. Unlike actual window tiling, this only affects border radius -
 9576/// not padding or shadows.
 9577pub fn client_side_decorations(
 9578    element: impl IntoElement,
 9579    window: &mut Window,
 9580    cx: &mut App,
 9581    border_radius_tiling: Tiling,
 9582) -> Stateful<Div> {
 9583    const BORDER_SIZE: Pixels = px(1.0);
 9584    let decorations = window.window_decorations();
 9585    let tiling = match decorations {
 9586        Decorations::Server => Tiling::default(),
 9587        Decorations::Client { tiling } => tiling,
 9588    };
 9589
 9590    match decorations {
 9591        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9592        Decorations::Server => window.set_client_inset(px(0.0)),
 9593    }
 9594
 9595    struct GlobalResizeEdge(ResizeEdge);
 9596    impl Global for GlobalResizeEdge {}
 9597
 9598    div()
 9599        .id("window-backdrop")
 9600        .bg(transparent_black())
 9601        .map(|div| match decorations {
 9602            Decorations::Server => div,
 9603            Decorations::Client { .. } => div
 9604                .when(
 9605                    !(tiling.top
 9606                        || tiling.right
 9607                        || border_radius_tiling.top
 9608                        || border_radius_tiling.right),
 9609                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9610                )
 9611                .when(
 9612                    !(tiling.top
 9613                        || tiling.left
 9614                        || border_radius_tiling.top
 9615                        || border_radius_tiling.left),
 9616                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9617                )
 9618                .when(
 9619                    !(tiling.bottom
 9620                        || tiling.right
 9621                        || border_radius_tiling.bottom
 9622                        || border_radius_tiling.right),
 9623                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9624                )
 9625                .when(
 9626                    !(tiling.bottom
 9627                        || tiling.left
 9628                        || border_radius_tiling.bottom
 9629                        || border_radius_tiling.left),
 9630                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9631                )
 9632                .when(!tiling.top, |div| {
 9633                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9634                })
 9635                .when(!tiling.bottom, |div| {
 9636                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9637                })
 9638                .when(!tiling.left, |div| {
 9639                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9640                })
 9641                .when(!tiling.right, |div| {
 9642                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9643                })
 9644                .on_mouse_move(move |e, window, cx| {
 9645                    let size = window.window_bounds().get_bounds().size;
 9646                    let pos = e.position;
 9647
 9648                    let new_edge =
 9649                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9650
 9651                    let edge = cx.try_global::<GlobalResizeEdge>();
 9652                    if new_edge != edge.map(|edge| edge.0) {
 9653                        window
 9654                            .window_handle()
 9655                            .update(cx, |workspace, _, cx| {
 9656                                cx.notify(workspace.entity_id());
 9657                            })
 9658                            .ok();
 9659                    }
 9660                })
 9661                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9662                    let size = window.window_bounds().get_bounds().size;
 9663                    let pos = e.position;
 9664
 9665                    let edge = match resize_edge(
 9666                        pos,
 9667                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9668                        size,
 9669                        tiling,
 9670                    ) {
 9671                        Some(value) => value,
 9672                        None => return,
 9673                    };
 9674
 9675                    window.start_window_resize(edge);
 9676                }),
 9677        })
 9678        .size_full()
 9679        .child(
 9680            div()
 9681                .cursor(CursorStyle::Arrow)
 9682                .map(|div| match decorations {
 9683                    Decorations::Server => div,
 9684                    Decorations::Client { .. } => div
 9685                        .border_color(cx.theme().colors().border)
 9686                        .when(
 9687                            !(tiling.top
 9688                                || tiling.right
 9689                                || border_radius_tiling.top
 9690                                || border_radius_tiling.right),
 9691                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9692                        )
 9693                        .when(
 9694                            !(tiling.top
 9695                                || tiling.left
 9696                                || border_radius_tiling.top
 9697                                || border_radius_tiling.left),
 9698                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9699                        )
 9700                        .when(
 9701                            !(tiling.bottom
 9702                                || tiling.right
 9703                                || border_radius_tiling.bottom
 9704                                || border_radius_tiling.right),
 9705                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9706                        )
 9707                        .when(
 9708                            !(tiling.bottom
 9709                                || tiling.left
 9710                                || border_radius_tiling.bottom
 9711                                || border_radius_tiling.left),
 9712                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9713                        )
 9714                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9715                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9716                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9717                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9718                        .when(!tiling.is_tiled(), |div| {
 9719                            div.shadow(vec![gpui::BoxShadow {
 9720                                color: Hsla {
 9721                                    h: 0.,
 9722                                    s: 0.,
 9723                                    l: 0.,
 9724                                    a: 0.4,
 9725                                },
 9726                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9727                                spread_radius: px(0.),
 9728                                offset: point(px(0.0), px(0.0)),
 9729                            }])
 9730                        }),
 9731                })
 9732                .on_mouse_move(|_e, _, cx| {
 9733                    cx.stop_propagation();
 9734                })
 9735                .size_full()
 9736                .child(element),
 9737        )
 9738        .map(|div| match decorations {
 9739            Decorations::Server => div,
 9740            Decorations::Client { tiling, .. } => div.child(
 9741                canvas(
 9742                    |_bounds, window, _| {
 9743                        window.insert_hitbox(
 9744                            Bounds::new(
 9745                                point(px(0.0), px(0.0)),
 9746                                window.window_bounds().get_bounds().size,
 9747                            ),
 9748                            HitboxBehavior::Normal,
 9749                        )
 9750                    },
 9751                    move |_bounds, hitbox, window, cx| {
 9752                        let mouse = window.mouse_position();
 9753                        let size = window.window_bounds().get_bounds().size;
 9754                        let Some(edge) =
 9755                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 9756                        else {
 9757                            return;
 9758                        };
 9759                        cx.set_global(GlobalResizeEdge(edge));
 9760                        window.set_cursor_style(
 9761                            match edge {
 9762                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 9763                                ResizeEdge::Left | ResizeEdge::Right => {
 9764                                    CursorStyle::ResizeLeftRight
 9765                                }
 9766                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 9767                                    CursorStyle::ResizeUpLeftDownRight
 9768                                }
 9769                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 9770                                    CursorStyle::ResizeUpRightDownLeft
 9771                                }
 9772                            },
 9773                            &hitbox,
 9774                        );
 9775                    },
 9776                )
 9777                .size_full()
 9778                .absolute(),
 9779            ),
 9780        })
 9781}
 9782
 9783fn resize_edge(
 9784    pos: Point<Pixels>,
 9785    shadow_size: Pixels,
 9786    window_size: Size<Pixels>,
 9787    tiling: Tiling,
 9788) -> Option<ResizeEdge> {
 9789    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9790    if bounds.contains(&pos) {
 9791        return None;
 9792    }
 9793
 9794    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9795    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 9796    if !tiling.top && top_left_bounds.contains(&pos) {
 9797        return Some(ResizeEdge::TopLeft);
 9798    }
 9799
 9800    let top_right_bounds = Bounds::new(
 9801        Point::new(window_size.width - corner_size.width, px(0.)),
 9802        corner_size,
 9803    );
 9804    if !tiling.top && top_right_bounds.contains(&pos) {
 9805        return Some(ResizeEdge::TopRight);
 9806    }
 9807
 9808    let bottom_left_bounds = Bounds::new(
 9809        Point::new(px(0.), window_size.height - corner_size.height),
 9810        corner_size,
 9811    );
 9812    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 9813        return Some(ResizeEdge::BottomLeft);
 9814    }
 9815
 9816    let bottom_right_bounds = Bounds::new(
 9817        Point::new(
 9818            window_size.width - corner_size.width,
 9819            window_size.height - corner_size.height,
 9820        ),
 9821        corner_size,
 9822    );
 9823    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 9824        return Some(ResizeEdge::BottomRight);
 9825    }
 9826
 9827    if !tiling.top && pos.y < shadow_size {
 9828        Some(ResizeEdge::Top)
 9829    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 9830        Some(ResizeEdge::Bottom)
 9831    } else if !tiling.left && pos.x < shadow_size {
 9832        Some(ResizeEdge::Left)
 9833    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 9834        Some(ResizeEdge::Right)
 9835    } else {
 9836        None
 9837    }
 9838}
 9839
 9840fn join_pane_into_active(
 9841    active_pane: &Entity<Pane>,
 9842    pane: &Entity<Pane>,
 9843    window: &mut Window,
 9844    cx: &mut App,
 9845) {
 9846    if pane == active_pane {
 9847    } else if pane.read(cx).items_len() == 0 {
 9848        pane.update(cx, |_, cx| {
 9849            cx.emit(pane::Event::Remove {
 9850                focus_on_pane: None,
 9851            });
 9852        })
 9853    } else {
 9854        move_all_items(pane, active_pane, window, cx);
 9855    }
 9856}
 9857
 9858fn move_all_items(
 9859    from_pane: &Entity<Pane>,
 9860    to_pane: &Entity<Pane>,
 9861    window: &mut Window,
 9862    cx: &mut App,
 9863) {
 9864    let destination_is_different = from_pane != to_pane;
 9865    let mut moved_items = 0;
 9866    for (item_ix, item_handle) in from_pane
 9867        .read(cx)
 9868        .items()
 9869        .enumerate()
 9870        .map(|(ix, item)| (ix, item.clone()))
 9871        .collect::<Vec<_>>()
 9872    {
 9873        let ix = item_ix - moved_items;
 9874        if destination_is_different {
 9875            // Close item from previous pane
 9876            from_pane.update(cx, |source, cx| {
 9877                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 9878            });
 9879            moved_items += 1;
 9880        }
 9881
 9882        // This automatically removes duplicate items in the pane
 9883        to_pane.update(cx, |destination, cx| {
 9884            destination.add_item(item_handle, true, true, None, window, cx);
 9885            window.focus(&destination.focus_handle(cx), cx)
 9886        });
 9887    }
 9888}
 9889
 9890pub fn move_item(
 9891    source: &Entity<Pane>,
 9892    destination: &Entity<Pane>,
 9893    item_id_to_move: EntityId,
 9894    destination_index: usize,
 9895    activate: bool,
 9896    window: &mut Window,
 9897    cx: &mut App,
 9898) {
 9899    let Some((item_ix, item_handle)) = source
 9900        .read(cx)
 9901        .items()
 9902        .enumerate()
 9903        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 9904        .map(|(ix, item)| (ix, item.clone()))
 9905    else {
 9906        // Tab was closed during drag
 9907        return;
 9908    };
 9909
 9910    if source != destination {
 9911        // Close item from previous pane
 9912        source.update(cx, |source, cx| {
 9913            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9914        });
 9915    }
 9916
 9917    // This automatically removes duplicate items in the pane
 9918    destination.update(cx, |destination, cx| {
 9919        destination.add_item_inner(
 9920            item_handle,
 9921            activate,
 9922            activate,
 9923            activate,
 9924            Some(destination_index),
 9925            window,
 9926            cx,
 9927        );
 9928        if activate {
 9929            window.focus(&destination.focus_handle(cx), cx)
 9930        }
 9931    });
 9932}
 9933
 9934pub fn move_active_item(
 9935    source: &Entity<Pane>,
 9936    destination: &Entity<Pane>,
 9937    focus_destination: bool,
 9938    close_if_empty: bool,
 9939    window: &mut Window,
 9940    cx: &mut App,
 9941) {
 9942    if source == destination {
 9943        return;
 9944    }
 9945    let Some(active_item) = source.read(cx).active_item() else {
 9946        return;
 9947    };
 9948    source.update(cx, |source_pane, cx| {
 9949        let item_id = active_item.item_id();
 9950        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9951        destination.update(cx, |target_pane, cx| {
 9952            target_pane.add_item(
 9953                active_item,
 9954                focus_destination,
 9955                focus_destination,
 9956                Some(target_pane.items_len()),
 9957                window,
 9958                cx,
 9959            );
 9960        });
 9961    });
 9962}
 9963
 9964pub fn clone_active_item(
 9965    workspace_id: Option<WorkspaceId>,
 9966    source: &Entity<Pane>,
 9967    destination: &Entity<Pane>,
 9968    focus_destination: bool,
 9969    window: &mut Window,
 9970    cx: &mut App,
 9971) {
 9972    if source == destination {
 9973        return;
 9974    }
 9975    let Some(active_item) = source.read(cx).active_item() else {
 9976        return;
 9977    };
 9978    if !active_item.can_split(cx) {
 9979        return;
 9980    }
 9981    let destination = destination.downgrade();
 9982    let task = active_item.clone_on_split(workspace_id, window, cx);
 9983    window
 9984        .spawn(cx, async move |cx| {
 9985            let Some(clone) = task.await else {
 9986                return;
 9987            };
 9988            destination
 9989                .update_in(cx, |target_pane, window, cx| {
 9990                    target_pane.add_item(
 9991                        clone,
 9992                        focus_destination,
 9993                        focus_destination,
 9994                        Some(target_pane.items_len()),
 9995                        window,
 9996                        cx,
 9997                    );
 9998                })
 9999                .log_err();
10000        })
10001        .detach();
10002}
10003
10004#[derive(Debug)]
10005pub struct WorkspacePosition {
10006    pub window_bounds: Option<WindowBounds>,
10007    pub display: Option<Uuid>,
10008    pub centered_layout: bool,
10009}
10010
10011pub fn remote_workspace_position_from_db(
10012    connection_options: RemoteConnectionOptions,
10013    paths_to_open: &[PathBuf],
10014    cx: &App,
10015) -> Task<Result<WorkspacePosition>> {
10016    let paths = paths_to_open.to_vec();
10017    let db = WorkspaceDb::global(cx);
10018    let kvp = db::kvp::KeyValueStore::global(cx);
10019
10020    cx.background_spawn(async move {
10021        let remote_connection_id = db
10022            .get_or_create_remote_connection(connection_options)
10023            .await
10024            .context("fetching serialized ssh project")?;
10025        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10026
10027        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10028            (Some(WindowBounds::Windowed(bounds)), None)
10029        } else {
10030            let restorable_bounds = serialized_workspace
10031                .as_ref()
10032                .and_then(|workspace| {
10033                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10034                })
10035                .or_else(|| persistence::read_default_window_bounds(&kvp));
10036
10037            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10038                (Some(serialized_bounds), Some(serialized_display))
10039            } else {
10040                (None, None)
10041            }
10042        };
10043
10044        let centered_layout = serialized_workspace
10045            .as_ref()
10046            .map(|w| w.centered_layout)
10047            .unwrap_or(false);
10048
10049        Ok(WorkspacePosition {
10050            window_bounds,
10051            display,
10052            centered_layout,
10053        })
10054    })
10055}
10056
10057pub fn with_active_or_new_workspace(
10058    cx: &mut App,
10059    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10060) {
10061    match cx
10062        .active_window()
10063        .and_then(|w| w.downcast::<MultiWorkspace>())
10064    {
10065        Some(multi_workspace) => {
10066            cx.defer(move |cx| {
10067                multi_workspace
10068                    .update(cx, |multi_workspace, window, cx| {
10069                        let workspace = multi_workspace.workspace().clone();
10070                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10071                    })
10072                    .log_err();
10073            });
10074        }
10075        None => {
10076            let app_state = AppState::global(cx);
10077            if let Some(app_state) = app_state.upgrade() {
10078                open_new(
10079                    OpenOptions::default(),
10080                    app_state,
10081                    cx,
10082                    move |workspace, window, cx| f(workspace, window, cx),
10083                )
10084                .detach_and_log_err(cx);
10085            }
10086        }
10087    }
10088}
10089
10090#[cfg(test)]
10091mod tests {
10092    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10093
10094    use super::*;
10095    use crate::{
10096        dock::{PanelEvent, test::TestPanel},
10097        item::{
10098            ItemBufferKind, ItemEvent,
10099            test::{TestItem, TestProjectItem},
10100        },
10101    };
10102    use fs::FakeFs;
10103    use gpui::{
10104        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10105        UpdateGlobal, VisualTestContext, px,
10106    };
10107    use project::{Project, ProjectEntryId};
10108    use serde_json::json;
10109    use settings::SettingsStore;
10110    use util::path;
10111    use util::rel_path::rel_path;
10112
10113    #[gpui::test]
10114    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10115        init_test(cx);
10116
10117        let fs = FakeFs::new(cx.executor());
10118        let project = Project::test(fs, [], cx).await;
10119        let (workspace, cx) =
10120            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10121
10122        // Adding an item with no ambiguity renders the tab without detail.
10123        let item1 = cx.new(|cx| {
10124            let mut item = TestItem::new(cx);
10125            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10126            item
10127        });
10128        workspace.update_in(cx, |workspace, window, cx| {
10129            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10130        });
10131        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10132
10133        // Adding an item that creates ambiguity increases the level of detail on
10134        // both tabs.
10135        let item2 = cx.new_window_entity(|_window, cx| {
10136            let mut item = TestItem::new(cx);
10137            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10138            item
10139        });
10140        workspace.update_in(cx, |workspace, window, cx| {
10141            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10142        });
10143        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10144        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10145
10146        // Adding an item that creates ambiguity increases the level of detail only
10147        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10148        // we stop at the highest detail available.
10149        let item3 = cx.new(|cx| {
10150            let mut item = TestItem::new(cx);
10151            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10152            item
10153        });
10154        workspace.update_in(cx, |workspace, window, cx| {
10155            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10156        });
10157        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10158        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10159        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10160    }
10161
10162    #[gpui::test]
10163    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10164        init_test(cx);
10165
10166        let fs = FakeFs::new(cx.executor());
10167        fs.insert_tree(
10168            "/root1",
10169            json!({
10170                "one.txt": "",
10171                "two.txt": "",
10172            }),
10173        )
10174        .await;
10175        fs.insert_tree(
10176            "/root2",
10177            json!({
10178                "three.txt": "",
10179            }),
10180        )
10181        .await;
10182
10183        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10184        let (workspace, cx) =
10185            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10186        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10187        let worktree_id = project.update(cx, |project, cx| {
10188            project.worktrees(cx).next().unwrap().read(cx).id()
10189        });
10190
10191        let item1 = cx.new(|cx| {
10192            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10193        });
10194        let item2 = cx.new(|cx| {
10195            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10196        });
10197
10198        // Add an item to an empty pane
10199        workspace.update_in(cx, |workspace, window, cx| {
10200            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10201        });
10202        project.update(cx, |project, cx| {
10203            assert_eq!(
10204                project.active_entry(),
10205                project
10206                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10207                    .map(|e| e.id)
10208            );
10209        });
10210        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10211
10212        // Add a second item to a non-empty pane
10213        workspace.update_in(cx, |workspace, window, cx| {
10214            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10215        });
10216        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10217        project.update(cx, |project, cx| {
10218            assert_eq!(
10219                project.active_entry(),
10220                project
10221                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10222                    .map(|e| e.id)
10223            );
10224        });
10225
10226        // Close the active item
10227        pane.update_in(cx, |pane, window, cx| {
10228            pane.close_active_item(&Default::default(), window, cx)
10229        })
10230        .await
10231        .unwrap();
10232        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10233        project.update(cx, |project, cx| {
10234            assert_eq!(
10235                project.active_entry(),
10236                project
10237                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10238                    .map(|e| e.id)
10239            );
10240        });
10241
10242        // Add a project folder
10243        project
10244            .update(cx, |project, cx| {
10245                project.find_or_create_worktree("root2", true, cx)
10246            })
10247            .await
10248            .unwrap();
10249        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10250
10251        // Remove a project folder
10252        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10253        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10254    }
10255
10256    #[gpui::test]
10257    async fn test_close_window(cx: &mut TestAppContext) {
10258        init_test(cx);
10259
10260        let fs = FakeFs::new(cx.executor());
10261        fs.insert_tree("/root", json!({ "one": "" })).await;
10262
10263        let project = Project::test(fs, ["root".as_ref()], cx).await;
10264        let (workspace, cx) =
10265            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10266
10267        // When there are no dirty items, there's nothing to do.
10268        let item1 = cx.new(TestItem::new);
10269        workspace.update_in(cx, |w, window, cx| {
10270            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10271        });
10272        let task = workspace.update_in(cx, |w, window, cx| {
10273            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10274        });
10275        assert!(task.await.unwrap());
10276
10277        // When there are dirty untitled items, prompt to save each one. If the user
10278        // cancels any prompt, then abort.
10279        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10280        let item3 = cx.new(|cx| {
10281            TestItem::new(cx)
10282                .with_dirty(true)
10283                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10284        });
10285        workspace.update_in(cx, |w, window, cx| {
10286            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10287            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10288        });
10289        let task = workspace.update_in(cx, |w, window, cx| {
10290            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10291        });
10292        cx.executor().run_until_parked();
10293        cx.simulate_prompt_answer("Cancel"); // cancel save all
10294        cx.executor().run_until_parked();
10295        assert!(!cx.has_pending_prompt());
10296        assert!(!task.await.unwrap());
10297    }
10298
10299    #[gpui::test]
10300    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10301        init_test(cx);
10302
10303        let fs = FakeFs::new(cx.executor());
10304        fs.insert_tree("/root", json!({ "one": "" })).await;
10305
10306        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10307        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10308        let multi_workspace_handle =
10309            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10310        cx.run_until_parked();
10311
10312        let workspace_a = multi_workspace_handle
10313            .read_with(cx, |mw, _| mw.workspace().clone())
10314            .unwrap();
10315
10316        let workspace_b = multi_workspace_handle
10317            .update(cx, |mw, window, cx| {
10318                mw.test_add_workspace(project_b, window, cx)
10319            })
10320            .unwrap();
10321
10322        // Activate workspace A
10323        multi_workspace_handle
10324            .update(cx, |mw, window, cx| {
10325                mw.activate_index(0, window, cx);
10326            })
10327            .unwrap();
10328
10329        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10330
10331        // Workspace A has a clean item
10332        let item_a = cx.new(TestItem::new);
10333        workspace_a.update_in(cx, |w, window, cx| {
10334            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10335        });
10336
10337        // Workspace B has a dirty item
10338        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10339        workspace_b.update_in(cx, |w, window, cx| {
10340            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10341        });
10342
10343        // Verify workspace A is active
10344        multi_workspace_handle
10345            .read_with(cx, |mw, _| {
10346                assert_eq!(mw.active_workspace_index(), 0);
10347            })
10348            .unwrap();
10349
10350        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10351        multi_workspace_handle
10352            .update(cx, |mw, window, cx| {
10353                mw.close_window(&CloseWindow, window, cx);
10354            })
10355            .unwrap();
10356        cx.run_until_parked();
10357
10358        // Workspace B should now be active since it has dirty items that need attention
10359        multi_workspace_handle
10360            .read_with(cx, |mw, _| {
10361                assert_eq!(
10362                    mw.active_workspace_index(),
10363                    1,
10364                    "workspace B should be activated when it prompts"
10365                );
10366            })
10367            .unwrap();
10368
10369        // User cancels the save prompt from workspace B
10370        cx.simulate_prompt_answer("Cancel");
10371        cx.run_until_parked();
10372
10373        // Window should still exist because workspace B's close was cancelled
10374        assert!(
10375            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10376            "window should still exist after cancelling one workspace's close"
10377        );
10378    }
10379
10380    #[gpui::test]
10381    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10382        init_test(cx);
10383
10384        // Register TestItem as a serializable item
10385        cx.update(|cx| {
10386            register_serializable_item::<TestItem>(cx);
10387        });
10388
10389        let fs = FakeFs::new(cx.executor());
10390        fs.insert_tree("/root", json!({ "one": "" })).await;
10391
10392        let project = Project::test(fs, ["root".as_ref()], cx).await;
10393        let (workspace, cx) =
10394            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10395
10396        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10397        let item1 = cx.new(|cx| {
10398            TestItem::new(cx)
10399                .with_dirty(true)
10400                .with_serialize(|| Some(Task::ready(Ok(()))))
10401        });
10402        let item2 = cx.new(|cx| {
10403            TestItem::new(cx)
10404                .with_dirty(true)
10405                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10406                .with_serialize(|| Some(Task::ready(Ok(()))))
10407        });
10408        workspace.update_in(cx, |w, window, cx| {
10409            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10410            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10411        });
10412        let task = workspace.update_in(cx, |w, window, cx| {
10413            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10414        });
10415        assert!(task.await.unwrap());
10416    }
10417
10418    #[gpui::test]
10419    async fn test_close_pane_items(cx: &mut TestAppContext) {
10420        init_test(cx);
10421
10422        let fs = FakeFs::new(cx.executor());
10423
10424        let project = Project::test(fs, None, cx).await;
10425        let (workspace, cx) =
10426            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10427
10428        let item1 = cx.new(|cx| {
10429            TestItem::new(cx)
10430                .with_dirty(true)
10431                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10432        });
10433        let item2 = cx.new(|cx| {
10434            TestItem::new(cx)
10435                .with_dirty(true)
10436                .with_conflict(true)
10437                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10438        });
10439        let item3 = cx.new(|cx| {
10440            TestItem::new(cx)
10441                .with_dirty(true)
10442                .with_conflict(true)
10443                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10444        });
10445        let item4 = cx.new(|cx| {
10446            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10447                let project_item = TestProjectItem::new_untitled(cx);
10448                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10449                project_item
10450            }])
10451        });
10452        let pane = workspace.update_in(cx, |workspace, window, cx| {
10453            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10454            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10455            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10456            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10457            workspace.active_pane().clone()
10458        });
10459
10460        let close_items = pane.update_in(cx, |pane, window, cx| {
10461            pane.activate_item(1, true, true, window, cx);
10462            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10463            let item1_id = item1.item_id();
10464            let item3_id = item3.item_id();
10465            let item4_id = item4.item_id();
10466            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10467                [item1_id, item3_id, item4_id].contains(&id)
10468            })
10469        });
10470        cx.executor().run_until_parked();
10471
10472        assert!(cx.has_pending_prompt());
10473        cx.simulate_prompt_answer("Save all");
10474
10475        cx.executor().run_until_parked();
10476
10477        // Item 1 is saved. There's a prompt to save item 3.
10478        pane.update(cx, |pane, cx| {
10479            assert_eq!(item1.read(cx).save_count, 1);
10480            assert_eq!(item1.read(cx).save_as_count, 0);
10481            assert_eq!(item1.read(cx).reload_count, 0);
10482            assert_eq!(pane.items_len(), 3);
10483            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10484        });
10485        assert!(cx.has_pending_prompt());
10486
10487        // Cancel saving item 3.
10488        cx.simulate_prompt_answer("Discard");
10489        cx.executor().run_until_parked();
10490
10491        // Item 3 is reloaded. There's a prompt to save item 4.
10492        pane.update(cx, |pane, cx| {
10493            assert_eq!(item3.read(cx).save_count, 0);
10494            assert_eq!(item3.read(cx).save_as_count, 0);
10495            assert_eq!(item3.read(cx).reload_count, 1);
10496            assert_eq!(pane.items_len(), 2);
10497            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10498        });
10499
10500        // There's a prompt for a path for item 4.
10501        cx.simulate_new_path_selection(|_| Some(Default::default()));
10502        close_items.await.unwrap();
10503
10504        // The requested items are closed.
10505        pane.update(cx, |pane, cx| {
10506            assert_eq!(item4.read(cx).save_count, 0);
10507            assert_eq!(item4.read(cx).save_as_count, 1);
10508            assert_eq!(item4.read(cx).reload_count, 0);
10509            assert_eq!(pane.items_len(), 1);
10510            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10511        });
10512    }
10513
10514    #[gpui::test]
10515    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10516        init_test(cx);
10517
10518        let fs = FakeFs::new(cx.executor());
10519        let project = Project::test(fs, [], cx).await;
10520        let (workspace, cx) =
10521            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10522
10523        // Create several workspace items with single project entries, and two
10524        // workspace items with multiple project entries.
10525        let single_entry_items = (0..=4)
10526            .map(|project_entry_id| {
10527                cx.new(|cx| {
10528                    TestItem::new(cx)
10529                        .with_dirty(true)
10530                        .with_project_items(&[dirty_project_item(
10531                            project_entry_id,
10532                            &format!("{project_entry_id}.txt"),
10533                            cx,
10534                        )])
10535                })
10536            })
10537            .collect::<Vec<_>>();
10538        let item_2_3 = cx.new(|cx| {
10539            TestItem::new(cx)
10540                .with_dirty(true)
10541                .with_buffer_kind(ItemBufferKind::Multibuffer)
10542                .with_project_items(&[
10543                    single_entry_items[2].read(cx).project_items[0].clone(),
10544                    single_entry_items[3].read(cx).project_items[0].clone(),
10545                ])
10546        });
10547        let item_3_4 = cx.new(|cx| {
10548            TestItem::new(cx)
10549                .with_dirty(true)
10550                .with_buffer_kind(ItemBufferKind::Multibuffer)
10551                .with_project_items(&[
10552                    single_entry_items[3].read(cx).project_items[0].clone(),
10553                    single_entry_items[4].read(cx).project_items[0].clone(),
10554                ])
10555        });
10556
10557        // Create two panes that contain the following project entries:
10558        //   left pane:
10559        //     multi-entry items:   (2, 3)
10560        //     single-entry items:  0, 2, 3, 4
10561        //   right pane:
10562        //     single-entry items:  4, 1
10563        //     multi-entry items:   (3, 4)
10564        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10565            let left_pane = workspace.active_pane().clone();
10566            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10567            workspace.add_item_to_active_pane(
10568                single_entry_items[0].boxed_clone(),
10569                None,
10570                true,
10571                window,
10572                cx,
10573            );
10574            workspace.add_item_to_active_pane(
10575                single_entry_items[2].boxed_clone(),
10576                None,
10577                true,
10578                window,
10579                cx,
10580            );
10581            workspace.add_item_to_active_pane(
10582                single_entry_items[3].boxed_clone(),
10583                None,
10584                true,
10585                window,
10586                cx,
10587            );
10588            workspace.add_item_to_active_pane(
10589                single_entry_items[4].boxed_clone(),
10590                None,
10591                true,
10592                window,
10593                cx,
10594            );
10595
10596            let right_pane =
10597                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10598
10599            let boxed_clone = single_entry_items[1].boxed_clone();
10600            let right_pane = window.spawn(cx, async move |cx| {
10601                right_pane.await.inspect(|right_pane| {
10602                    right_pane
10603                        .update_in(cx, |pane, window, cx| {
10604                            pane.add_item(boxed_clone, true, true, None, window, cx);
10605                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10606                        })
10607                        .unwrap();
10608                })
10609            });
10610
10611            (left_pane, right_pane)
10612        });
10613        let right_pane = right_pane.await.unwrap();
10614        cx.focus(&right_pane);
10615
10616        let close = right_pane.update_in(cx, |pane, window, cx| {
10617            pane.close_all_items(&CloseAllItems::default(), window, cx)
10618                .unwrap()
10619        });
10620        cx.executor().run_until_parked();
10621
10622        let msg = cx.pending_prompt().unwrap().0;
10623        assert!(msg.contains("1.txt"));
10624        assert!(!msg.contains("2.txt"));
10625        assert!(!msg.contains("3.txt"));
10626        assert!(!msg.contains("4.txt"));
10627
10628        // With best-effort close, cancelling item 1 keeps it open but items 4
10629        // and (3,4) still close since their entries exist in left pane.
10630        cx.simulate_prompt_answer("Cancel");
10631        close.await;
10632
10633        right_pane.read_with(cx, |pane, _| {
10634            assert_eq!(pane.items_len(), 1);
10635        });
10636
10637        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10638        left_pane
10639            .update_in(cx, |left_pane, window, cx| {
10640                left_pane.close_item_by_id(
10641                    single_entry_items[3].entity_id(),
10642                    SaveIntent::Skip,
10643                    window,
10644                    cx,
10645                )
10646            })
10647            .await
10648            .unwrap();
10649
10650        let close = left_pane.update_in(cx, |pane, window, cx| {
10651            pane.close_all_items(&CloseAllItems::default(), window, cx)
10652                .unwrap()
10653        });
10654        cx.executor().run_until_parked();
10655
10656        let details = cx.pending_prompt().unwrap().1;
10657        assert!(details.contains("0.txt"));
10658        assert!(details.contains("3.txt"));
10659        assert!(details.contains("4.txt"));
10660        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10661        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10662        // assert!(!details.contains("2.txt"));
10663
10664        cx.simulate_prompt_answer("Save all");
10665        cx.executor().run_until_parked();
10666        close.await;
10667
10668        left_pane.read_with(cx, |pane, _| {
10669            assert_eq!(pane.items_len(), 0);
10670        });
10671    }
10672
10673    #[gpui::test]
10674    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10675        init_test(cx);
10676
10677        let fs = FakeFs::new(cx.executor());
10678        let project = Project::test(fs, [], cx).await;
10679        let (workspace, cx) =
10680            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10681        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10682
10683        let item = cx.new(|cx| {
10684            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10685        });
10686        let item_id = item.entity_id();
10687        workspace.update_in(cx, |workspace, window, cx| {
10688            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10689        });
10690
10691        // Autosave on window change.
10692        item.update(cx, |item, cx| {
10693            SettingsStore::update_global(cx, |settings, cx| {
10694                settings.update_user_settings(cx, |settings| {
10695                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10696                })
10697            });
10698            item.is_dirty = true;
10699        });
10700
10701        // Deactivating the window saves the file.
10702        cx.deactivate_window();
10703        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10704
10705        // Re-activating the window doesn't save the file.
10706        cx.update(|window, _| window.activate_window());
10707        cx.executor().run_until_parked();
10708        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10709
10710        // Autosave on focus change.
10711        item.update_in(cx, |item, window, cx| {
10712            cx.focus_self(window);
10713            SettingsStore::update_global(cx, |settings, cx| {
10714                settings.update_user_settings(cx, |settings| {
10715                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10716                })
10717            });
10718            item.is_dirty = true;
10719        });
10720        // Blurring the item saves the file.
10721        item.update_in(cx, |_, window, _| window.blur());
10722        cx.executor().run_until_parked();
10723        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
10724
10725        // Deactivating the window still saves the file.
10726        item.update_in(cx, |item, window, cx| {
10727            cx.focus_self(window);
10728            item.is_dirty = true;
10729        });
10730        cx.deactivate_window();
10731        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
10732
10733        // Autosave after delay.
10734        item.update(cx, |item, cx| {
10735            SettingsStore::update_global(cx, |settings, cx| {
10736                settings.update_user_settings(cx, |settings| {
10737                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
10738                        milliseconds: 500.into(),
10739                    });
10740                })
10741            });
10742            item.is_dirty = true;
10743            cx.emit(ItemEvent::Edit);
10744        });
10745
10746        // Delay hasn't fully expired, so the file is still dirty and unsaved.
10747        cx.executor().advance_clock(Duration::from_millis(250));
10748        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
10749
10750        // After delay expires, the file is saved.
10751        cx.executor().advance_clock(Duration::from_millis(250));
10752        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10753
10754        // Autosave after delay, should save earlier than delay if tab is closed
10755        item.update(cx, |item, cx| {
10756            item.is_dirty = true;
10757            cx.emit(ItemEvent::Edit);
10758        });
10759        cx.executor().advance_clock(Duration::from_millis(250));
10760        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10761
10762        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
10763        pane.update_in(cx, |pane, window, cx| {
10764            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10765        })
10766        .await
10767        .unwrap();
10768        assert!(!cx.has_pending_prompt());
10769        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10770
10771        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10772        workspace.update_in(cx, |workspace, window, cx| {
10773            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10774        });
10775        item.update_in(cx, |item, _window, cx| {
10776            item.is_dirty = true;
10777            for project_item in &mut item.project_items {
10778                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10779            }
10780        });
10781        cx.run_until_parked();
10782        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10783
10784        // Autosave on focus change, ensuring closing the tab counts as such.
10785        item.update(cx, |item, cx| {
10786            SettingsStore::update_global(cx, |settings, cx| {
10787                settings.update_user_settings(cx, |settings| {
10788                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10789                })
10790            });
10791            item.is_dirty = true;
10792            for project_item in &mut item.project_items {
10793                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10794            }
10795        });
10796
10797        pane.update_in(cx, |pane, window, cx| {
10798            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10799        })
10800        .await
10801        .unwrap();
10802        assert!(!cx.has_pending_prompt());
10803        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10804
10805        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10806        workspace.update_in(cx, |workspace, window, cx| {
10807            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10808        });
10809        item.update_in(cx, |item, window, cx| {
10810            item.project_items[0].update(cx, |item, _| {
10811                item.entry_id = None;
10812            });
10813            item.is_dirty = true;
10814            window.blur();
10815        });
10816        cx.run_until_parked();
10817        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10818
10819        // Ensure autosave is prevented for deleted files also when closing the buffer.
10820        let _close_items = pane.update_in(cx, |pane, window, cx| {
10821            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10822        });
10823        cx.run_until_parked();
10824        assert!(cx.has_pending_prompt());
10825        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10826    }
10827
10828    #[gpui::test]
10829    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
10830        init_test(cx);
10831
10832        let fs = FakeFs::new(cx.executor());
10833        let project = Project::test(fs, [], cx).await;
10834        let (workspace, cx) =
10835            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10836
10837        // Create a multibuffer-like item with two child focus handles,
10838        // simulating individual buffer editors within a multibuffer.
10839        let item = cx.new(|cx| {
10840            TestItem::new(cx)
10841                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10842                .with_child_focus_handles(2, cx)
10843        });
10844        workspace.update_in(cx, |workspace, window, cx| {
10845            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10846        });
10847
10848        // Set autosave to OnFocusChange and focus the first child handle,
10849        // simulating the user's cursor being inside one of the multibuffer's excerpts.
10850        item.update_in(cx, |item, window, cx| {
10851            SettingsStore::update_global(cx, |settings, cx| {
10852                settings.update_user_settings(cx, |settings| {
10853                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10854                })
10855            });
10856            item.is_dirty = true;
10857            window.focus(&item.child_focus_handles[0], cx);
10858        });
10859        cx.executor().run_until_parked();
10860        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
10861
10862        // Moving focus from one child to another within the same item should
10863        // NOT trigger autosave — focus is still within the item's focus hierarchy.
10864        item.update_in(cx, |item, window, cx| {
10865            window.focus(&item.child_focus_handles[1], cx);
10866        });
10867        cx.executor().run_until_parked();
10868        item.read_with(cx, |item, _| {
10869            assert_eq!(
10870                item.save_count, 0,
10871                "Switching focus between children within the same item should not autosave"
10872            );
10873        });
10874
10875        // Blurring the item saves the file. This is the core regression scenario:
10876        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
10877        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
10878        // the leaf is always a child focus handle, so `on_blur` never detected
10879        // focus leaving the item.
10880        item.update_in(cx, |_, window, _| window.blur());
10881        cx.executor().run_until_parked();
10882        item.read_with(cx, |item, _| {
10883            assert_eq!(
10884                item.save_count, 1,
10885                "Blurring should trigger autosave when focus was on a child of the item"
10886            );
10887        });
10888
10889        // Deactivating the window should also trigger autosave when a child of
10890        // the multibuffer item currently owns focus.
10891        item.update_in(cx, |item, window, cx| {
10892            item.is_dirty = true;
10893            window.focus(&item.child_focus_handles[0], cx);
10894        });
10895        cx.executor().run_until_parked();
10896        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10897
10898        cx.deactivate_window();
10899        item.read_with(cx, |item, _| {
10900            assert_eq!(
10901                item.save_count, 2,
10902                "Deactivating window should trigger autosave when focus was on a child"
10903            );
10904        });
10905    }
10906
10907    #[gpui::test]
10908    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
10909        init_test(cx);
10910
10911        let fs = FakeFs::new(cx.executor());
10912
10913        let project = Project::test(fs, [], cx).await;
10914        let (workspace, cx) =
10915            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10916
10917        let item = cx.new(|cx| {
10918            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10919        });
10920        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10921        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
10922        let toolbar_notify_count = Rc::new(RefCell::new(0));
10923
10924        workspace.update_in(cx, |workspace, window, cx| {
10925            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10926            let toolbar_notification_count = toolbar_notify_count.clone();
10927            cx.observe_in(&toolbar, window, move |_, _, _, _| {
10928                *toolbar_notification_count.borrow_mut() += 1
10929            })
10930            .detach();
10931        });
10932
10933        pane.read_with(cx, |pane, _| {
10934            assert!(!pane.can_navigate_backward());
10935            assert!(!pane.can_navigate_forward());
10936        });
10937
10938        item.update_in(cx, |item, _, cx| {
10939            item.set_state("one".to_string(), cx);
10940        });
10941
10942        // Toolbar must be notified to re-render the navigation buttons
10943        assert_eq!(*toolbar_notify_count.borrow(), 1);
10944
10945        pane.read_with(cx, |pane, _| {
10946            assert!(pane.can_navigate_backward());
10947            assert!(!pane.can_navigate_forward());
10948        });
10949
10950        workspace
10951            .update_in(cx, |workspace, window, cx| {
10952                workspace.go_back(pane.downgrade(), window, cx)
10953            })
10954            .await
10955            .unwrap();
10956
10957        assert_eq!(*toolbar_notify_count.borrow(), 2);
10958        pane.read_with(cx, |pane, _| {
10959            assert!(!pane.can_navigate_backward());
10960            assert!(pane.can_navigate_forward());
10961        });
10962    }
10963
10964    #[gpui::test]
10965    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
10966        init_test(cx);
10967        let fs = FakeFs::new(cx.executor());
10968        let project = Project::test(fs, [], cx).await;
10969        let (multi_workspace, cx) =
10970            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
10971        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
10972
10973        workspace.update_in(cx, |workspace, window, cx| {
10974            let first_item = cx.new(|cx| {
10975                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10976            });
10977            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
10978            workspace.split_pane(
10979                workspace.active_pane().clone(),
10980                SplitDirection::Right,
10981                window,
10982                cx,
10983            );
10984            workspace.split_pane(
10985                workspace.active_pane().clone(),
10986                SplitDirection::Right,
10987                window,
10988                cx,
10989            );
10990        });
10991
10992        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
10993            let panes = workspace.center.panes();
10994            assert!(panes.len() >= 2);
10995            (
10996                panes.first().expect("at least one pane").entity_id(),
10997                panes.last().expect("at least one pane").entity_id(),
10998            )
10999        });
11000
11001        workspace.update_in(cx, |workspace, window, cx| {
11002            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11003        });
11004        workspace.update(cx, |workspace, _| {
11005            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11006            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11007        });
11008
11009        cx.dispatch_action(ActivateLastPane);
11010
11011        workspace.update(cx, |workspace, _| {
11012            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11013        });
11014    }
11015
11016    #[gpui::test]
11017    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11018        init_test(cx);
11019        let fs = FakeFs::new(cx.executor());
11020
11021        let project = Project::test(fs, [], cx).await;
11022        let (workspace, cx) =
11023            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11024
11025        let panel = workspace.update_in(cx, |workspace, window, cx| {
11026            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11027            workspace.add_panel(panel.clone(), window, cx);
11028
11029            workspace
11030                .right_dock()
11031                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11032
11033            panel
11034        });
11035
11036        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11037        pane.update_in(cx, |pane, window, cx| {
11038            let item = cx.new(TestItem::new);
11039            pane.add_item(Box::new(item), true, true, None, window, cx);
11040        });
11041
11042        // Transfer focus from center to panel
11043        workspace.update_in(cx, |workspace, window, cx| {
11044            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11045        });
11046
11047        workspace.update_in(cx, |workspace, window, cx| {
11048            assert!(workspace.right_dock().read(cx).is_open());
11049            assert!(!panel.is_zoomed(window, cx));
11050            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11051        });
11052
11053        // Transfer focus from panel to center
11054        workspace.update_in(cx, |workspace, window, cx| {
11055            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11056        });
11057
11058        workspace.update_in(cx, |workspace, window, cx| {
11059            assert!(workspace.right_dock().read(cx).is_open());
11060            assert!(!panel.is_zoomed(window, cx));
11061            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11062        });
11063
11064        // Close the dock
11065        workspace.update_in(cx, |workspace, window, cx| {
11066            workspace.toggle_dock(DockPosition::Right, window, cx);
11067        });
11068
11069        workspace.update_in(cx, |workspace, window, cx| {
11070            assert!(!workspace.right_dock().read(cx).is_open());
11071            assert!(!panel.is_zoomed(window, cx));
11072            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11073        });
11074
11075        // Open the dock
11076        workspace.update_in(cx, |workspace, window, cx| {
11077            workspace.toggle_dock(DockPosition::Right, window, cx);
11078        });
11079
11080        workspace.update_in(cx, |workspace, window, cx| {
11081            assert!(workspace.right_dock().read(cx).is_open());
11082            assert!(!panel.is_zoomed(window, cx));
11083            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11084        });
11085
11086        // Focus and zoom panel
11087        panel.update_in(cx, |panel, window, cx| {
11088            cx.focus_self(window);
11089            panel.set_zoomed(true, window, cx)
11090        });
11091
11092        workspace.update_in(cx, |workspace, window, cx| {
11093            assert!(workspace.right_dock().read(cx).is_open());
11094            assert!(panel.is_zoomed(window, cx));
11095            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11096        });
11097
11098        // Transfer focus to the center closes the dock
11099        workspace.update_in(cx, |workspace, window, cx| {
11100            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11101        });
11102
11103        workspace.update_in(cx, |workspace, window, cx| {
11104            assert!(!workspace.right_dock().read(cx).is_open());
11105            assert!(panel.is_zoomed(window, cx));
11106            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11107        });
11108
11109        // Transferring focus back to the panel keeps it zoomed
11110        workspace.update_in(cx, |workspace, window, cx| {
11111            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11112        });
11113
11114        workspace.update_in(cx, |workspace, window, cx| {
11115            assert!(workspace.right_dock().read(cx).is_open());
11116            assert!(panel.is_zoomed(window, cx));
11117            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11118        });
11119
11120        // Close the dock while it is zoomed
11121        workspace.update_in(cx, |workspace, window, cx| {
11122            workspace.toggle_dock(DockPosition::Right, window, cx)
11123        });
11124
11125        workspace.update_in(cx, |workspace, window, cx| {
11126            assert!(!workspace.right_dock().read(cx).is_open());
11127            assert!(panel.is_zoomed(window, cx));
11128            assert!(workspace.zoomed.is_none());
11129            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11130        });
11131
11132        // Opening the dock, when it's zoomed, retains focus
11133        workspace.update_in(cx, |workspace, window, cx| {
11134            workspace.toggle_dock(DockPosition::Right, window, cx)
11135        });
11136
11137        workspace.update_in(cx, |workspace, window, cx| {
11138            assert!(workspace.right_dock().read(cx).is_open());
11139            assert!(panel.is_zoomed(window, cx));
11140            assert!(workspace.zoomed.is_some());
11141            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11142        });
11143
11144        // Unzoom and close the panel, zoom the active pane.
11145        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11146        workspace.update_in(cx, |workspace, window, cx| {
11147            workspace.toggle_dock(DockPosition::Right, window, cx)
11148        });
11149        pane.update_in(cx, |pane, window, cx| {
11150            pane.toggle_zoom(&Default::default(), window, cx)
11151        });
11152
11153        // Opening a dock unzooms the pane.
11154        workspace.update_in(cx, |workspace, window, cx| {
11155            workspace.toggle_dock(DockPosition::Right, window, cx)
11156        });
11157        workspace.update_in(cx, |workspace, window, cx| {
11158            let pane = pane.read(cx);
11159            assert!(!pane.is_zoomed());
11160            assert!(!pane.focus_handle(cx).is_focused(window));
11161            assert!(workspace.right_dock().read(cx).is_open());
11162            assert!(workspace.zoomed.is_none());
11163        });
11164    }
11165
11166    #[gpui::test]
11167    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11168        init_test(cx);
11169        let fs = FakeFs::new(cx.executor());
11170
11171        let project = Project::test(fs, [], cx).await;
11172        let (workspace, cx) =
11173            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11174
11175        let panel = workspace.update_in(cx, |workspace, window, cx| {
11176            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11177            workspace.add_panel(panel.clone(), window, cx);
11178            panel
11179        });
11180
11181        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11182        pane.update_in(cx, |pane, window, cx| {
11183            let item = cx.new(TestItem::new);
11184            pane.add_item(Box::new(item), true, true, None, window, cx);
11185        });
11186
11187        // Enable close_panel_on_toggle
11188        cx.update_global(|store: &mut SettingsStore, cx| {
11189            store.update_user_settings(cx, |settings| {
11190                settings.workspace.close_panel_on_toggle = Some(true);
11191            });
11192        });
11193
11194        // Panel starts closed. Toggling should open and focus it.
11195        workspace.update_in(cx, |workspace, window, cx| {
11196            assert!(!workspace.right_dock().read(cx).is_open());
11197            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11198        });
11199
11200        workspace.update_in(cx, |workspace, window, cx| {
11201            assert!(
11202                workspace.right_dock().read(cx).is_open(),
11203                "Dock should be open after toggling from center"
11204            );
11205            assert!(
11206                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11207                "Panel should be focused after toggling from center"
11208            );
11209        });
11210
11211        // Panel is open and focused. Toggling should close the panel and
11212        // return focus to the center.
11213        workspace.update_in(cx, |workspace, window, cx| {
11214            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11215        });
11216
11217        workspace.update_in(cx, |workspace, window, cx| {
11218            assert!(
11219                !workspace.right_dock().read(cx).is_open(),
11220                "Dock should be closed after toggling from focused panel"
11221            );
11222            assert!(
11223                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11224                "Panel should not be focused after toggling from focused panel"
11225            );
11226        });
11227
11228        // Open the dock and focus something else so the panel is open but not
11229        // focused. Toggling should focus the panel (not close it).
11230        workspace.update_in(cx, |workspace, window, cx| {
11231            workspace
11232                .right_dock()
11233                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11234            window.focus(&pane.read(cx).focus_handle(cx), cx);
11235        });
11236
11237        workspace.update_in(cx, |workspace, window, cx| {
11238            assert!(workspace.right_dock().read(cx).is_open());
11239            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11240            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11241        });
11242
11243        workspace.update_in(cx, |workspace, window, cx| {
11244            assert!(
11245                workspace.right_dock().read(cx).is_open(),
11246                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11247            );
11248            assert!(
11249                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11250                "Panel should be focused after toggling an open-but-unfocused panel"
11251            );
11252        });
11253
11254        // Now disable the setting and verify the original behavior: toggling
11255        // from a focused panel moves focus to center but leaves the dock open.
11256        cx.update_global(|store: &mut SettingsStore, cx| {
11257            store.update_user_settings(cx, |settings| {
11258                settings.workspace.close_panel_on_toggle = Some(false);
11259            });
11260        });
11261
11262        workspace.update_in(cx, |workspace, window, cx| {
11263            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11264        });
11265
11266        workspace.update_in(cx, |workspace, window, cx| {
11267            assert!(
11268                workspace.right_dock().read(cx).is_open(),
11269                "Dock should remain open when setting is disabled"
11270            );
11271            assert!(
11272                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11273                "Panel should not be focused after toggling with setting disabled"
11274            );
11275        });
11276    }
11277
11278    #[gpui::test]
11279    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11280        init_test(cx);
11281        let fs = FakeFs::new(cx.executor());
11282
11283        let project = Project::test(fs, [], cx).await;
11284        let (workspace, cx) =
11285            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11286
11287        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11288            workspace.active_pane().clone()
11289        });
11290
11291        // Add an item to the pane so it can be zoomed
11292        workspace.update_in(cx, |workspace, window, cx| {
11293            let item = cx.new(TestItem::new);
11294            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11295        });
11296
11297        // Initially not zoomed
11298        workspace.update_in(cx, |workspace, _window, cx| {
11299            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11300            assert!(
11301                workspace.zoomed.is_none(),
11302                "Workspace should track no zoomed pane"
11303            );
11304            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11305        });
11306
11307        // Zoom In
11308        pane.update_in(cx, |pane, window, cx| {
11309            pane.zoom_in(&crate::ZoomIn, window, cx);
11310        });
11311
11312        workspace.update_in(cx, |workspace, window, cx| {
11313            assert!(
11314                pane.read(cx).is_zoomed(),
11315                "Pane should be zoomed after ZoomIn"
11316            );
11317            assert!(
11318                workspace.zoomed.is_some(),
11319                "Workspace should track the zoomed pane"
11320            );
11321            assert!(
11322                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11323                "ZoomIn should focus the pane"
11324            );
11325        });
11326
11327        // Zoom In again is a no-op
11328        pane.update_in(cx, |pane, window, cx| {
11329            pane.zoom_in(&crate::ZoomIn, window, cx);
11330        });
11331
11332        workspace.update_in(cx, |workspace, window, cx| {
11333            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11334            assert!(
11335                workspace.zoomed.is_some(),
11336                "Workspace still tracks zoomed pane"
11337            );
11338            assert!(
11339                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11340                "Pane remains focused after repeated ZoomIn"
11341            );
11342        });
11343
11344        // Zoom Out
11345        pane.update_in(cx, |pane, window, cx| {
11346            pane.zoom_out(&crate::ZoomOut, window, cx);
11347        });
11348
11349        workspace.update_in(cx, |workspace, _window, cx| {
11350            assert!(
11351                !pane.read(cx).is_zoomed(),
11352                "Pane should unzoom after ZoomOut"
11353            );
11354            assert!(
11355                workspace.zoomed.is_none(),
11356                "Workspace clears zoom tracking after ZoomOut"
11357            );
11358        });
11359
11360        // Zoom Out again is a no-op
11361        pane.update_in(cx, |pane, window, cx| {
11362            pane.zoom_out(&crate::ZoomOut, window, cx);
11363        });
11364
11365        workspace.update_in(cx, |workspace, _window, cx| {
11366            assert!(
11367                !pane.read(cx).is_zoomed(),
11368                "Second ZoomOut keeps pane unzoomed"
11369            );
11370            assert!(
11371                workspace.zoomed.is_none(),
11372                "Workspace remains without zoomed pane"
11373            );
11374        });
11375    }
11376
11377    #[gpui::test]
11378    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11379        init_test(cx);
11380        let fs = FakeFs::new(cx.executor());
11381
11382        let project = Project::test(fs, [], cx).await;
11383        let (workspace, cx) =
11384            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11385        workspace.update_in(cx, |workspace, window, cx| {
11386            // Open two docks
11387            let left_dock = workspace.dock_at_position(DockPosition::Left);
11388            let right_dock = workspace.dock_at_position(DockPosition::Right);
11389
11390            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11391            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11392
11393            assert!(left_dock.read(cx).is_open());
11394            assert!(right_dock.read(cx).is_open());
11395        });
11396
11397        workspace.update_in(cx, |workspace, window, cx| {
11398            // Toggle all docks - should close both
11399            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11400
11401            let left_dock = workspace.dock_at_position(DockPosition::Left);
11402            let right_dock = workspace.dock_at_position(DockPosition::Right);
11403            assert!(!left_dock.read(cx).is_open());
11404            assert!(!right_dock.read(cx).is_open());
11405        });
11406
11407        workspace.update_in(cx, |workspace, window, cx| {
11408            // Toggle again - should reopen both
11409            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11410
11411            let left_dock = workspace.dock_at_position(DockPosition::Left);
11412            let right_dock = workspace.dock_at_position(DockPosition::Right);
11413            assert!(left_dock.read(cx).is_open());
11414            assert!(right_dock.read(cx).is_open());
11415        });
11416    }
11417
11418    #[gpui::test]
11419    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11420        init_test(cx);
11421        let fs = FakeFs::new(cx.executor());
11422
11423        let project = Project::test(fs, [], cx).await;
11424        let (workspace, cx) =
11425            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11426        workspace.update_in(cx, |workspace, window, cx| {
11427            // Open two docks
11428            let left_dock = workspace.dock_at_position(DockPosition::Left);
11429            let right_dock = workspace.dock_at_position(DockPosition::Right);
11430
11431            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11432            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11433
11434            assert!(left_dock.read(cx).is_open());
11435            assert!(right_dock.read(cx).is_open());
11436        });
11437
11438        workspace.update_in(cx, |workspace, window, cx| {
11439            // Close them manually
11440            workspace.toggle_dock(DockPosition::Left, window, cx);
11441            workspace.toggle_dock(DockPosition::Right, window, cx);
11442
11443            let left_dock = workspace.dock_at_position(DockPosition::Left);
11444            let right_dock = workspace.dock_at_position(DockPosition::Right);
11445            assert!(!left_dock.read(cx).is_open());
11446            assert!(!right_dock.read(cx).is_open());
11447        });
11448
11449        workspace.update_in(cx, |workspace, window, cx| {
11450            // Toggle all docks - only last closed (right dock) should reopen
11451            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11452
11453            let left_dock = workspace.dock_at_position(DockPosition::Left);
11454            let right_dock = workspace.dock_at_position(DockPosition::Right);
11455            assert!(!left_dock.read(cx).is_open());
11456            assert!(right_dock.read(cx).is_open());
11457        });
11458    }
11459
11460    #[gpui::test]
11461    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
11462        init_test(cx);
11463        let fs = FakeFs::new(cx.executor());
11464        let project = Project::test(fs, [], cx).await;
11465        let (multi_workspace, cx) =
11466            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11467        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11468
11469        // Open two docks (left and right) with one panel each
11470        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
11471            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11472            workspace.add_panel(left_panel.clone(), window, cx);
11473
11474            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11475            workspace.add_panel(right_panel.clone(), window, cx);
11476
11477            workspace.toggle_dock(DockPosition::Left, window, cx);
11478            workspace.toggle_dock(DockPosition::Right, window, cx);
11479
11480            // Verify initial state
11481            assert!(
11482                workspace.left_dock().read(cx).is_open(),
11483                "Left dock should be open"
11484            );
11485            assert_eq!(
11486                workspace
11487                    .left_dock()
11488                    .read(cx)
11489                    .visible_panel()
11490                    .unwrap()
11491                    .panel_id(),
11492                left_panel.panel_id(),
11493                "Left panel should be visible in left dock"
11494            );
11495            assert!(
11496                workspace.right_dock().read(cx).is_open(),
11497                "Right dock should be open"
11498            );
11499            assert_eq!(
11500                workspace
11501                    .right_dock()
11502                    .read(cx)
11503                    .visible_panel()
11504                    .unwrap()
11505                    .panel_id(),
11506                right_panel.panel_id(),
11507                "Right panel should be visible in right dock"
11508            );
11509            assert!(
11510                !workspace.bottom_dock().read(cx).is_open(),
11511                "Bottom dock should be closed"
11512            );
11513
11514            (left_panel, right_panel)
11515        });
11516
11517        // Focus the left panel and move it to the next position (bottom dock)
11518        workspace.update_in(cx, |workspace, window, cx| {
11519            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
11520            assert!(
11521                left_panel.read(cx).focus_handle(cx).is_focused(window),
11522                "Left panel should be focused"
11523            );
11524        });
11525
11526        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11527
11528        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
11529        workspace.update(cx, |workspace, cx| {
11530            assert!(
11531                !workspace.left_dock().read(cx).is_open(),
11532                "Left dock should be closed"
11533            );
11534            assert!(
11535                workspace.bottom_dock().read(cx).is_open(),
11536                "Bottom dock should now be open"
11537            );
11538            assert_eq!(
11539                left_panel.read(cx).position,
11540                DockPosition::Bottom,
11541                "Left panel should now be in the bottom dock"
11542            );
11543            assert_eq!(
11544                workspace
11545                    .bottom_dock()
11546                    .read(cx)
11547                    .visible_panel()
11548                    .unwrap()
11549                    .panel_id(),
11550                left_panel.panel_id(),
11551                "Left panel should be the visible panel in the bottom dock"
11552            );
11553        });
11554
11555        // Toggle all docks off
11556        workspace.update_in(cx, |workspace, window, cx| {
11557            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11558            assert!(
11559                !workspace.left_dock().read(cx).is_open(),
11560                "Left dock should be closed"
11561            );
11562            assert!(
11563                !workspace.right_dock().read(cx).is_open(),
11564                "Right dock should be closed"
11565            );
11566            assert!(
11567                !workspace.bottom_dock().read(cx).is_open(),
11568                "Bottom dock should be closed"
11569            );
11570        });
11571
11572        // Toggle all docks back on and verify positions are restored
11573        workspace.update_in(cx, |workspace, window, cx| {
11574            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11575            assert!(
11576                !workspace.left_dock().read(cx).is_open(),
11577                "Left dock should remain closed"
11578            );
11579            assert!(
11580                workspace.right_dock().read(cx).is_open(),
11581                "Right dock should remain open"
11582            );
11583            assert!(
11584                workspace.bottom_dock().read(cx).is_open(),
11585                "Bottom dock should remain open"
11586            );
11587            assert_eq!(
11588                left_panel.read(cx).position,
11589                DockPosition::Bottom,
11590                "Left panel should remain in the bottom dock"
11591            );
11592            assert_eq!(
11593                right_panel.read(cx).position,
11594                DockPosition::Right,
11595                "Right panel should remain in the right dock"
11596            );
11597            assert_eq!(
11598                workspace
11599                    .bottom_dock()
11600                    .read(cx)
11601                    .visible_panel()
11602                    .unwrap()
11603                    .panel_id(),
11604                left_panel.panel_id(),
11605                "Left panel should be the visible panel in the right dock"
11606            );
11607        });
11608    }
11609
11610    #[gpui::test]
11611    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
11612        init_test(cx);
11613
11614        let fs = FakeFs::new(cx.executor());
11615
11616        let project = Project::test(fs, None, cx).await;
11617        let (workspace, cx) =
11618            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11619
11620        // Let's arrange the panes like this:
11621        //
11622        // +-----------------------+
11623        // |         top           |
11624        // +------+--------+-------+
11625        // | left | center | right |
11626        // +------+--------+-------+
11627        // |        bottom         |
11628        // +-----------------------+
11629
11630        let top_item = cx.new(|cx| {
11631            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
11632        });
11633        let bottom_item = cx.new(|cx| {
11634            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
11635        });
11636        let left_item = cx.new(|cx| {
11637            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
11638        });
11639        let right_item = cx.new(|cx| {
11640            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
11641        });
11642        let center_item = cx.new(|cx| {
11643            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
11644        });
11645
11646        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11647            let top_pane_id = workspace.active_pane().entity_id();
11648            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
11649            workspace.split_pane(
11650                workspace.active_pane().clone(),
11651                SplitDirection::Down,
11652                window,
11653                cx,
11654            );
11655            top_pane_id
11656        });
11657        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11658            let bottom_pane_id = workspace.active_pane().entity_id();
11659            workspace.add_item_to_active_pane(
11660                Box::new(bottom_item.clone()),
11661                None,
11662                false,
11663                window,
11664                cx,
11665            );
11666            workspace.split_pane(
11667                workspace.active_pane().clone(),
11668                SplitDirection::Up,
11669                window,
11670                cx,
11671            );
11672            bottom_pane_id
11673        });
11674        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11675            let left_pane_id = workspace.active_pane().entity_id();
11676            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
11677            workspace.split_pane(
11678                workspace.active_pane().clone(),
11679                SplitDirection::Right,
11680                window,
11681                cx,
11682            );
11683            left_pane_id
11684        });
11685        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11686            let right_pane_id = workspace.active_pane().entity_id();
11687            workspace.add_item_to_active_pane(
11688                Box::new(right_item.clone()),
11689                None,
11690                false,
11691                window,
11692                cx,
11693            );
11694            workspace.split_pane(
11695                workspace.active_pane().clone(),
11696                SplitDirection::Left,
11697                window,
11698                cx,
11699            );
11700            right_pane_id
11701        });
11702        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11703            let center_pane_id = workspace.active_pane().entity_id();
11704            workspace.add_item_to_active_pane(
11705                Box::new(center_item.clone()),
11706                None,
11707                false,
11708                window,
11709                cx,
11710            );
11711            center_pane_id
11712        });
11713        cx.executor().run_until_parked();
11714
11715        workspace.update_in(cx, |workspace, window, cx| {
11716            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
11717
11718            // Join into next from center pane into right
11719            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11720        });
11721
11722        workspace.update_in(cx, |workspace, window, cx| {
11723            let active_pane = workspace.active_pane();
11724            assert_eq!(right_pane_id, active_pane.entity_id());
11725            assert_eq!(2, active_pane.read(cx).items_len());
11726            let item_ids_in_pane =
11727                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11728            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11729            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11730
11731            // Join into next from right pane into bottom
11732            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11733        });
11734
11735        workspace.update_in(cx, |workspace, window, cx| {
11736            let active_pane = workspace.active_pane();
11737            assert_eq!(bottom_pane_id, active_pane.entity_id());
11738            assert_eq!(3, active_pane.read(cx).items_len());
11739            let item_ids_in_pane =
11740                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11741            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11742            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11743            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11744
11745            // Join into next from bottom pane into left
11746            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11747        });
11748
11749        workspace.update_in(cx, |workspace, window, cx| {
11750            let active_pane = workspace.active_pane();
11751            assert_eq!(left_pane_id, active_pane.entity_id());
11752            assert_eq!(4, active_pane.read(cx).items_len());
11753            let item_ids_in_pane =
11754                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11755            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11756            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11757            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11758            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11759
11760            // Join into next from left pane into top
11761            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11762        });
11763
11764        workspace.update_in(cx, |workspace, window, cx| {
11765            let active_pane = workspace.active_pane();
11766            assert_eq!(top_pane_id, active_pane.entity_id());
11767            assert_eq!(5, active_pane.read(cx).items_len());
11768            let item_ids_in_pane =
11769                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11770            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11771            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11772            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11773            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11774            assert!(item_ids_in_pane.contains(&top_item.item_id()));
11775
11776            // Single pane left: no-op
11777            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
11778        });
11779
11780        workspace.update(cx, |workspace, _cx| {
11781            let active_pane = workspace.active_pane();
11782            assert_eq!(top_pane_id, active_pane.entity_id());
11783        });
11784    }
11785
11786    fn add_an_item_to_active_pane(
11787        cx: &mut VisualTestContext,
11788        workspace: &Entity<Workspace>,
11789        item_id: u64,
11790    ) -> Entity<TestItem> {
11791        let item = cx.new(|cx| {
11792            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
11793                item_id,
11794                "item{item_id}.txt",
11795                cx,
11796            )])
11797        });
11798        workspace.update_in(cx, |workspace, window, cx| {
11799            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
11800        });
11801        item
11802    }
11803
11804    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
11805        workspace.update_in(cx, |workspace, window, cx| {
11806            workspace.split_pane(
11807                workspace.active_pane().clone(),
11808                SplitDirection::Right,
11809                window,
11810                cx,
11811            )
11812        })
11813    }
11814
11815    #[gpui::test]
11816    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
11817        init_test(cx);
11818        let fs = FakeFs::new(cx.executor());
11819        let project = Project::test(fs, None, cx).await;
11820        let (workspace, cx) =
11821            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11822
11823        add_an_item_to_active_pane(cx, &workspace, 1);
11824        split_pane(cx, &workspace);
11825        add_an_item_to_active_pane(cx, &workspace, 2);
11826        split_pane(cx, &workspace); // empty pane
11827        split_pane(cx, &workspace);
11828        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
11829
11830        cx.executor().run_until_parked();
11831
11832        workspace.update(cx, |workspace, cx| {
11833            let num_panes = workspace.panes().len();
11834            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11835            let active_item = workspace
11836                .active_pane()
11837                .read(cx)
11838                .active_item()
11839                .expect("item is in focus");
11840
11841            assert_eq!(num_panes, 4);
11842            assert_eq!(num_items_in_current_pane, 1);
11843            assert_eq!(active_item.item_id(), last_item.item_id());
11844        });
11845
11846        workspace.update_in(cx, |workspace, window, cx| {
11847            workspace.join_all_panes(window, cx);
11848        });
11849
11850        workspace.update(cx, |workspace, cx| {
11851            let num_panes = workspace.panes().len();
11852            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11853            let active_item = workspace
11854                .active_pane()
11855                .read(cx)
11856                .active_item()
11857                .expect("item is in focus");
11858
11859            assert_eq!(num_panes, 1);
11860            assert_eq!(num_items_in_current_pane, 3);
11861            assert_eq!(active_item.item_id(), last_item.item_id());
11862        });
11863    }
11864    struct TestModal(FocusHandle);
11865
11866    impl TestModal {
11867        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
11868            Self(cx.focus_handle())
11869        }
11870    }
11871
11872    impl EventEmitter<DismissEvent> for TestModal {}
11873
11874    impl Focusable for TestModal {
11875        fn focus_handle(&self, _cx: &App) -> FocusHandle {
11876            self.0.clone()
11877        }
11878    }
11879
11880    impl ModalView for TestModal {}
11881
11882    impl Render for TestModal {
11883        fn render(
11884            &mut self,
11885            _window: &mut Window,
11886            _cx: &mut Context<TestModal>,
11887        ) -> impl IntoElement {
11888            div().track_focus(&self.0)
11889        }
11890    }
11891
11892    #[gpui::test]
11893    async fn test_panels(cx: &mut gpui::TestAppContext) {
11894        init_test(cx);
11895        let fs = FakeFs::new(cx.executor());
11896
11897        let project = Project::test(fs, [], cx).await;
11898        let (multi_workspace, cx) =
11899            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11900        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11901
11902        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
11903            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11904            workspace.add_panel(panel_1.clone(), window, cx);
11905            workspace.toggle_dock(DockPosition::Left, window, cx);
11906            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11907            workspace.add_panel(panel_2.clone(), window, cx);
11908            workspace.toggle_dock(DockPosition::Right, window, cx);
11909
11910            let left_dock = workspace.left_dock();
11911            assert_eq!(
11912                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11913                panel_1.panel_id()
11914            );
11915            assert_eq!(
11916                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11917                panel_1.size(window, cx)
11918            );
11919
11920            left_dock.update(cx, |left_dock, cx| {
11921                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
11922            });
11923            assert_eq!(
11924                workspace
11925                    .right_dock()
11926                    .read(cx)
11927                    .visible_panel()
11928                    .unwrap()
11929                    .panel_id(),
11930                panel_2.panel_id(),
11931            );
11932
11933            (panel_1, panel_2)
11934        });
11935
11936        // Move panel_1 to the right
11937        panel_1.update_in(cx, |panel_1, window, cx| {
11938            panel_1.set_position(DockPosition::Right, window, cx)
11939        });
11940
11941        workspace.update_in(cx, |workspace, window, cx| {
11942            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
11943            // Since it was the only panel on the left, the left dock should now be closed.
11944            assert!(!workspace.left_dock().read(cx).is_open());
11945            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
11946            let right_dock = workspace.right_dock();
11947            assert_eq!(
11948                right_dock.read(cx).visible_panel().unwrap().panel_id(),
11949                panel_1.panel_id()
11950            );
11951            assert_eq!(
11952                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
11953                px(1337.)
11954            );
11955
11956            // Now we move panel_2 to the left
11957            panel_2.set_position(DockPosition::Left, window, cx);
11958        });
11959
11960        workspace.update(cx, |workspace, cx| {
11961            // Since panel_2 was not visible on the right, we don't open the left dock.
11962            assert!(!workspace.left_dock().read(cx).is_open());
11963            // And the right dock is unaffected in its displaying of panel_1
11964            assert!(workspace.right_dock().read(cx).is_open());
11965            assert_eq!(
11966                workspace
11967                    .right_dock()
11968                    .read(cx)
11969                    .visible_panel()
11970                    .unwrap()
11971                    .panel_id(),
11972                panel_1.panel_id(),
11973            );
11974        });
11975
11976        // Move panel_1 back to the left
11977        panel_1.update_in(cx, |panel_1, window, cx| {
11978            panel_1.set_position(DockPosition::Left, window, cx)
11979        });
11980
11981        workspace.update_in(cx, |workspace, window, cx| {
11982            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
11983            let left_dock = workspace.left_dock();
11984            assert!(left_dock.read(cx).is_open());
11985            assert_eq!(
11986                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11987                panel_1.panel_id()
11988            );
11989            assert_eq!(
11990                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11991                px(1337.)
11992            );
11993            // And the right dock should be closed as it no longer has any panels.
11994            assert!(!workspace.right_dock().read(cx).is_open());
11995
11996            // Now we move panel_1 to the bottom
11997            panel_1.set_position(DockPosition::Bottom, window, cx);
11998        });
11999
12000        workspace.update_in(cx, |workspace, window, cx| {
12001            // Since panel_1 was visible on the left, we close the left dock.
12002            assert!(!workspace.left_dock().read(cx).is_open());
12003            // The bottom dock is sized based on the panel's default size,
12004            // since the panel orientation changed from vertical to horizontal.
12005            let bottom_dock = workspace.bottom_dock();
12006            assert_eq!(
12007                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
12008                panel_1.size(window, cx),
12009            );
12010            // Close bottom dock and move panel_1 back to the left.
12011            bottom_dock.update(cx, |bottom_dock, cx| {
12012                bottom_dock.set_open(false, window, cx)
12013            });
12014            panel_1.set_position(DockPosition::Left, window, cx);
12015        });
12016
12017        // Emit activated event on panel 1
12018        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
12019
12020        // Now the left dock is open and panel_1 is active and focused.
12021        workspace.update_in(cx, |workspace, window, cx| {
12022            let left_dock = workspace.left_dock();
12023            assert!(left_dock.read(cx).is_open());
12024            assert_eq!(
12025                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12026                panel_1.panel_id(),
12027            );
12028            assert!(panel_1.focus_handle(cx).is_focused(window));
12029        });
12030
12031        // Emit closed event on panel 2, which is not active
12032        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12033
12034        // Wo don't close the left dock, because panel_2 wasn't the active panel
12035        workspace.update(cx, |workspace, cx| {
12036            let left_dock = workspace.left_dock();
12037            assert!(left_dock.read(cx).is_open());
12038            assert_eq!(
12039                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12040                panel_1.panel_id(),
12041            );
12042        });
12043
12044        // Emitting a ZoomIn event shows the panel as zoomed.
12045        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
12046        workspace.read_with(cx, |workspace, _| {
12047            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12048            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
12049        });
12050
12051        // Move panel to another dock while it is zoomed
12052        panel_1.update_in(cx, |panel, window, cx| {
12053            panel.set_position(DockPosition::Right, window, cx)
12054        });
12055        workspace.read_with(cx, |workspace, _| {
12056            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12057
12058            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12059        });
12060
12061        // This is a helper for getting a:
12062        // - valid focus on an element,
12063        // - that isn't a part of the panes and panels system of the Workspace,
12064        // - and doesn't trigger the 'on_focus_lost' API.
12065        let focus_other_view = {
12066            let workspace = workspace.clone();
12067            move |cx: &mut VisualTestContext| {
12068                workspace.update_in(cx, |workspace, window, cx| {
12069                    if workspace.active_modal::<TestModal>(cx).is_some() {
12070                        workspace.toggle_modal(window, cx, TestModal::new);
12071                        workspace.toggle_modal(window, cx, TestModal::new);
12072                    } else {
12073                        workspace.toggle_modal(window, cx, TestModal::new);
12074                    }
12075                })
12076            }
12077        };
12078
12079        // If focus is transferred to another view that's not a panel or another pane, we still show
12080        // the panel as zoomed.
12081        focus_other_view(cx);
12082        workspace.read_with(cx, |workspace, _| {
12083            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12084            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12085        });
12086
12087        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
12088        workspace.update_in(cx, |_workspace, window, cx| {
12089            cx.focus_self(window);
12090        });
12091        workspace.read_with(cx, |workspace, _| {
12092            assert_eq!(workspace.zoomed, None);
12093            assert_eq!(workspace.zoomed_position, None);
12094        });
12095
12096        // If focus is transferred again to another view that's not a panel or a pane, we won't
12097        // show the panel as zoomed because it wasn't zoomed before.
12098        focus_other_view(cx);
12099        workspace.read_with(cx, |workspace, _| {
12100            assert_eq!(workspace.zoomed, None);
12101            assert_eq!(workspace.zoomed_position, None);
12102        });
12103
12104        // When the panel is activated, it is zoomed again.
12105        cx.dispatch_action(ToggleRightDock);
12106        workspace.read_with(cx, |workspace, _| {
12107            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12108            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12109        });
12110
12111        // Emitting a ZoomOut event unzooms the panel.
12112        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
12113        workspace.read_with(cx, |workspace, _| {
12114            assert_eq!(workspace.zoomed, None);
12115            assert_eq!(workspace.zoomed_position, None);
12116        });
12117
12118        // Emit closed event on panel 1, which is active
12119        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12120
12121        // Now the left dock is closed, because panel_1 was the active panel
12122        workspace.update(cx, |workspace, cx| {
12123            let right_dock = workspace.right_dock();
12124            assert!(!right_dock.read(cx).is_open());
12125        });
12126    }
12127
12128    #[gpui::test]
12129    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
12130        init_test(cx);
12131
12132        let fs = FakeFs::new(cx.background_executor.clone());
12133        let project = Project::test(fs, [], cx).await;
12134        let (workspace, cx) =
12135            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12136        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12137
12138        let dirty_regular_buffer = cx.new(|cx| {
12139            TestItem::new(cx)
12140                .with_dirty(true)
12141                .with_label("1.txt")
12142                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12143        });
12144        let dirty_regular_buffer_2 = cx.new(|cx| {
12145            TestItem::new(cx)
12146                .with_dirty(true)
12147                .with_label("2.txt")
12148                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12149        });
12150        let dirty_multi_buffer_with_both = cx.new(|cx| {
12151            TestItem::new(cx)
12152                .with_dirty(true)
12153                .with_buffer_kind(ItemBufferKind::Multibuffer)
12154                .with_label("Fake Project Search")
12155                .with_project_items(&[
12156                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12157                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12158                ])
12159        });
12160        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12161        workspace.update_in(cx, |workspace, window, cx| {
12162            workspace.add_item(
12163                pane.clone(),
12164                Box::new(dirty_regular_buffer.clone()),
12165                None,
12166                false,
12167                false,
12168                window,
12169                cx,
12170            );
12171            workspace.add_item(
12172                pane.clone(),
12173                Box::new(dirty_regular_buffer_2.clone()),
12174                None,
12175                false,
12176                false,
12177                window,
12178                cx,
12179            );
12180            workspace.add_item(
12181                pane.clone(),
12182                Box::new(dirty_multi_buffer_with_both.clone()),
12183                None,
12184                false,
12185                false,
12186                window,
12187                cx,
12188            );
12189        });
12190
12191        pane.update_in(cx, |pane, window, cx| {
12192            pane.activate_item(2, true, true, window, cx);
12193            assert_eq!(
12194                pane.active_item().unwrap().item_id(),
12195                multi_buffer_with_both_files_id,
12196                "Should select the multi buffer in the pane"
12197            );
12198        });
12199        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12200            pane.close_other_items(
12201                &CloseOtherItems {
12202                    save_intent: Some(SaveIntent::Save),
12203                    close_pinned: true,
12204                },
12205                None,
12206                window,
12207                cx,
12208            )
12209        });
12210        cx.background_executor.run_until_parked();
12211        assert!(!cx.has_pending_prompt());
12212        close_all_but_multi_buffer_task
12213            .await
12214            .expect("Closing all buffers but the multi buffer failed");
12215        pane.update(cx, |pane, cx| {
12216            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
12217            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
12218            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
12219            assert_eq!(pane.items_len(), 1);
12220            assert_eq!(
12221                pane.active_item().unwrap().item_id(),
12222                multi_buffer_with_both_files_id,
12223                "Should have only the multi buffer left in the pane"
12224            );
12225            assert!(
12226                dirty_multi_buffer_with_both.read(cx).is_dirty,
12227                "The multi buffer containing the unsaved buffer should still be dirty"
12228            );
12229        });
12230
12231        dirty_regular_buffer.update(cx, |buffer, cx| {
12232            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
12233        });
12234
12235        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12236            pane.close_active_item(
12237                &CloseActiveItem {
12238                    save_intent: Some(SaveIntent::Close),
12239                    close_pinned: false,
12240                },
12241                window,
12242                cx,
12243            )
12244        });
12245        cx.background_executor.run_until_parked();
12246        assert!(
12247            cx.has_pending_prompt(),
12248            "Dirty multi buffer should prompt a save dialog"
12249        );
12250        cx.simulate_prompt_answer("Save");
12251        cx.background_executor.run_until_parked();
12252        close_multi_buffer_task
12253            .await
12254            .expect("Closing the multi buffer failed");
12255        pane.update(cx, |pane, cx| {
12256            assert_eq!(
12257                dirty_multi_buffer_with_both.read(cx).save_count,
12258                1,
12259                "Multi buffer item should get be saved"
12260            );
12261            // Test impl does not save inner items, so we do not assert them
12262            assert_eq!(
12263                pane.items_len(),
12264                0,
12265                "No more items should be left in the pane"
12266            );
12267            assert!(pane.active_item().is_none());
12268        });
12269    }
12270
12271    #[gpui::test]
12272    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
12273        cx: &mut TestAppContext,
12274    ) {
12275        init_test(cx);
12276
12277        let fs = FakeFs::new(cx.background_executor.clone());
12278        let project = Project::test(fs, [], cx).await;
12279        let (workspace, cx) =
12280            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12281        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12282
12283        let dirty_regular_buffer = cx.new(|cx| {
12284            TestItem::new(cx)
12285                .with_dirty(true)
12286                .with_label("1.txt")
12287                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12288        });
12289        let dirty_regular_buffer_2 = cx.new(|cx| {
12290            TestItem::new(cx)
12291                .with_dirty(true)
12292                .with_label("2.txt")
12293                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12294        });
12295        let clear_regular_buffer = cx.new(|cx| {
12296            TestItem::new(cx)
12297                .with_label("3.txt")
12298                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12299        });
12300
12301        let dirty_multi_buffer_with_both = cx.new(|cx| {
12302            TestItem::new(cx)
12303                .with_dirty(true)
12304                .with_buffer_kind(ItemBufferKind::Multibuffer)
12305                .with_label("Fake Project Search")
12306                .with_project_items(&[
12307                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12308                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12309                    clear_regular_buffer.read(cx).project_items[0].clone(),
12310                ])
12311        });
12312        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12313        workspace.update_in(cx, |workspace, window, cx| {
12314            workspace.add_item(
12315                pane.clone(),
12316                Box::new(dirty_regular_buffer.clone()),
12317                None,
12318                false,
12319                false,
12320                window,
12321                cx,
12322            );
12323            workspace.add_item(
12324                pane.clone(),
12325                Box::new(dirty_multi_buffer_with_both.clone()),
12326                None,
12327                false,
12328                false,
12329                window,
12330                cx,
12331            );
12332        });
12333
12334        pane.update_in(cx, |pane, window, cx| {
12335            pane.activate_item(1, true, true, window, cx);
12336            assert_eq!(
12337                pane.active_item().unwrap().item_id(),
12338                multi_buffer_with_both_files_id,
12339                "Should select the multi buffer in the pane"
12340            );
12341        });
12342        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12343            pane.close_active_item(
12344                &CloseActiveItem {
12345                    save_intent: None,
12346                    close_pinned: false,
12347                },
12348                window,
12349                cx,
12350            )
12351        });
12352        cx.background_executor.run_until_parked();
12353        assert!(
12354            cx.has_pending_prompt(),
12355            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
12356        );
12357    }
12358
12359    /// Tests that when `close_on_file_delete` is enabled, files are automatically
12360    /// closed when they are deleted from disk.
12361    #[gpui::test]
12362    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
12363        init_test(cx);
12364
12365        // Enable the close_on_disk_deletion setting
12366        cx.update_global(|store: &mut SettingsStore, cx| {
12367            store.update_user_settings(cx, |settings| {
12368                settings.workspace.close_on_file_delete = Some(true);
12369            });
12370        });
12371
12372        let fs = FakeFs::new(cx.background_executor.clone());
12373        let project = Project::test(fs, [], cx).await;
12374        let (workspace, cx) =
12375            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12376        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12377
12378        // Create a test item that simulates a file
12379        let item = cx.new(|cx| {
12380            TestItem::new(cx)
12381                .with_label("test.txt")
12382                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12383        });
12384
12385        // Add item to workspace
12386        workspace.update_in(cx, |workspace, window, cx| {
12387            workspace.add_item(
12388                pane.clone(),
12389                Box::new(item.clone()),
12390                None,
12391                false,
12392                false,
12393                window,
12394                cx,
12395            );
12396        });
12397
12398        // Verify the item is in the pane
12399        pane.read_with(cx, |pane, _| {
12400            assert_eq!(pane.items().count(), 1);
12401        });
12402
12403        // Simulate file deletion by setting the item's deleted state
12404        item.update(cx, |item, _| {
12405            item.set_has_deleted_file(true);
12406        });
12407
12408        // Emit UpdateTab event to trigger the close behavior
12409        cx.run_until_parked();
12410        item.update(cx, |_, cx| {
12411            cx.emit(ItemEvent::UpdateTab);
12412        });
12413
12414        // Allow the close operation to complete
12415        cx.run_until_parked();
12416
12417        // Verify the item was automatically closed
12418        pane.read_with(cx, |pane, _| {
12419            assert_eq!(
12420                pane.items().count(),
12421                0,
12422                "Item should be automatically closed when file is deleted"
12423            );
12424        });
12425    }
12426
12427    /// Tests that when `close_on_file_delete` is disabled (default), files remain
12428    /// open with a strikethrough when they are deleted from disk.
12429    #[gpui::test]
12430    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
12431        init_test(cx);
12432
12433        // Ensure close_on_disk_deletion is disabled (default)
12434        cx.update_global(|store: &mut SettingsStore, cx| {
12435            store.update_user_settings(cx, |settings| {
12436                settings.workspace.close_on_file_delete = Some(false);
12437            });
12438        });
12439
12440        let fs = FakeFs::new(cx.background_executor.clone());
12441        let project = Project::test(fs, [], cx).await;
12442        let (workspace, cx) =
12443            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12444        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12445
12446        // Create a test item that simulates a file
12447        let item = cx.new(|cx| {
12448            TestItem::new(cx)
12449                .with_label("test.txt")
12450                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12451        });
12452
12453        // Add item to workspace
12454        workspace.update_in(cx, |workspace, window, cx| {
12455            workspace.add_item(
12456                pane.clone(),
12457                Box::new(item.clone()),
12458                None,
12459                false,
12460                false,
12461                window,
12462                cx,
12463            );
12464        });
12465
12466        // Verify the item is in the pane
12467        pane.read_with(cx, |pane, _| {
12468            assert_eq!(pane.items().count(), 1);
12469        });
12470
12471        // Simulate file deletion
12472        item.update(cx, |item, _| {
12473            item.set_has_deleted_file(true);
12474        });
12475
12476        // Emit UpdateTab event
12477        cx.run_until_parked();
12478        item.update(cx, |_, cx| {
12479            cx.emit(ItemEvent::UpdateTab);
12480        });
12481
12482        // Allow any potential close operation to complete
12483        cx.run_until_parked();
12484
12485        // Verify the item remains open (with strikethrough)
12486        pane.read_with(cx, |pane, _| {
12487            assert_eq!(
12488                pane.items().count(),
12489                1,
12490                "Item should remain open when close_on_disk_deletion is disabled"
12491            );
12492        });
12493
12494        // Verify the item shows as deleted
12495        item.read_with(cx, |item, _| {
12496            assert!(
12497                item.has_deleted_file,
12498                "Item should be marked as having deleted file"
12499            );
12500        });
12501    }
12502
12503    /// Tests that dirty files are not automatically closed when deleted from disk,
12504    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
12505    /// unsaved changes without being prompted.
12506    #[gpui::test]
12507    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
12508        init_test(cx);
12509
12510        // Enable the close_on_file_delete setting
12511        cx.update_global(|store: &mut SettingsStore, cx| {
12512            store.update_user_settings(cx, |settings| {
12513                settings.workspace.close_on_file_delete = Some(true);
12514            });
12515        });
12516
12517        let fs = FakeFs::new(cx.background_executor.clone());
12518        let project = Project::test(fs, [], cx).await;
12519        let (workspace, cx) =
12520            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12521        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12522
12523        // Create a dirty test item
12524        let item = cx.new(|cx| {
12525            TestItem::new(cx)
12526                .with_dirty(true)
12527                .with_label("test.txt")
12528                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12529        });
12530
12531        // Add item to workspace
12532        workspace.update_in(cx, |workspace, window, cx| {
12533            workspace.add_item(
12534                pane.clone(),
12535                Box::new(item.clone()),
12536                None,
12537                false,
12538                false,
12539                window,
12540                cx,
12541            );
12542        });
12543
12544        // Simulate file deletion
12545        item.update(cx, |item, _| {
12546            item.set_has_deleted_file(true);
12547        });
12548
12549        // Emit UpdateTab event to trigger the close behavior
12550        cx.run_until_parked();
12551        item.update(cx, |_, cx| {
12552            cx.emit(ItemEvent::UpdateTab);
12553        });
12554
12555        // Allow any potential close operation to complete
12556        cx.run_until_parked();
12557
12558        // Verify the item remains open (dirty files are not auto-closed)
12559        pane.read_with(cx, |pane, _| {
12560            assert_eq!(
12561                pane.items().count(),
12562                1,
12563                "Dirty items should not be automatically closed even when file is deleted"
12564            );
12565        });
12566
12567        // Verify the item is marked as deleted and still dirty
12568        item.read_with(cx, |item, _| {
12569            assert!(
12570                item.has_deleted_file,
12571                "Item should be marked as having deleted file"
12572            );
12573            assert!(item.is_dirty, "Item should still be dirty");
12574        });
12575    }
12576
12577    /// Tests that navigation history is cleaned up when files are auto-closed
12578    /// due to deletion from disk.
12579    #[gpui::test]
12580    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
12581        init_test(cx);
12582
12583        // Enable the close_on_file_delete setting
12584        cx.update_global(|store: &mut SettingsStore, cx| {
12585            store.update_user_settings(cx, |settings| {
12586                settings.workspace.close_on_file_delete = Some(true);
12587            });
12588        });
12589
12590        let fs = FakeFs::new(cx.background_executor.clone());
12591        let project = Project::test(fs, [], cx).await;
12592        let (workspace, cx) =
12593            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12594        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12595
12596        // Create test items
12597        let item1 = cx.new(|cx| {
12598            TestItem::new(cx)
12599                .with_label("test1.txt")
12600                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
12601        });
12602        let item1_id = item1.item_id();
12603
12604        let item2 = cx.new(|cx| {
12605            TestItem::new(cx)
12606                .with_label("test2.txt")
12607                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
12608        });
12609
12610        // Add items to workspace
12611        workspace.update_in(cx, |workspace, window, cx| {
12612            workspace.add_item(
12613                pane.clone(),
12614                Box::new(item1.clone()),
12615                None,
12616                false,
12617                false,
12618                window,
12619                cx,
12620            );
12621            workspace.add_item(
12622                pane.clone(),
12623                Box::new(item2.clone()),
12624                None,
12625                false,
12626                false,
12627                window,
12628                cx,
12629            );
12630        });
12631
12632        // Activate item1 to ensure it gets navigation entries
12633        pane.update_in(cx, |pane, window, cx| {
12634            pane.activate_item(0, true, true, window, cx);
12635        });
12636
12637        // Switch to item2 and back to create navigation history
12638        pane.update_in(cx, |pane, window, cx| {
12639            pane.activate_item(1, true, true, window, cx);
12640        });
12641        cx.run_until_parked();
12642
12643        pane.update_in(cx, |pane, window, cx| {
12644            pane.activate_item(0, true, true, window, cx);
12645        });
12646        cx.run_until_parked();
12647
12648        // Simulate file deletion for item1
12649        item1.update(cx, |item, _| {
12650            item.set_has_deleted_file(true);
12651        });
12652
12653        // Emit UpdateTab event to trigger the close behavior
12654        item1.update(cx, |_, cx| {
12655            cx.emit(ItemEvent::UpdateTab);
12656        });
12657        cx.run_until_parked();
12658
12659        // Verify item1 was closed
12660        pane.read_with(cx, |pane, _| {
12661            assert_eq!(
12662                pane.items().count(),
12663                1,
12664                "Should have 1 item remaining after auto-close"
12665            );
12666        });
12667
12668        // Check navigation history after close
12669        let has_item = pane.read_with(cx, |pane, cx| {
12670            let mut has_item = false;
12671            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
12672                if entry.item.id() == item1_id {
12673                    has_item = true;
12674                }
12675            });
12676            has_item
12677        });
12678
12679        assert!(
12680            !has_item,
12681            "Navigation history should not contain closed item entries"
12682        );
12683    }
12684
12685    #[gpui::test]
12686    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
12687        cx: &mut TestAppContext,
12688    ) {
12689        init_test(cx);
12690
12691        let fs = FakeFs::new(cx.background_executor.clone());
12692        let project = Project::test(fs, [], cx).await;
12693        let (workspace, cx) =
12694            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12695        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12696
12697        let dirty_regular_buffer = cx.new(|cx| {
12698            TestItem::new(cx)
12699                .with_dirty(true)
12700                .with_label("1.txt")
12701                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12702        });
12703        let dirty_regular_buffer_2 = cx.new(|cx| {
12704            TestItem::new(cx)
12705                .with_dirty(true)
12706                .with_label("2.txt")
12707                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12708        });
12709        let clear_regular_buffer = cx.new(|cx| {
12710            TestItem::new(cx)
12711                .with_label("3.txt")
12712                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12713        });
12714
12715        let dirty_multi_buffer = cx.new(|cx| {
12716            TestItem::new(cx)
12717                .with_dirty(true)
12718                .with_buffer_kind(ItemBufferKind::Multibuffer)
12719                .with_label("Fake Project Search")
12720                .with_project_items(&[
12721                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12722                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12723                    clear_regular_buffer.read(cx).project_items[0].clone(),
12724                ])
12725        });
12726        workspace.update_in(cx, |workspace, window, cx| {
12727            workspace.add_item(
12728                pane.clone(),
12729                Box::new(dirty_regular_buffer.clone()),
12730                None,
12731                false,
12732                false,
12733                window,
12734                cx,
12735            );
12736            workspace.add_item(
12737                pane.clone(),
12738                Box::new(dirty_regular_buffer_2.clone()),
12739                None,
12740                false,
12741                false,
12742                window,
12743                cx,
12744            );
12745            workspace.add_item(
12746                pane.clone(),
12747                Box::new(dirty_multi_buffer.clone()),
12748                None,
12749                false,
12750                false,
12751                window,
12752                cx,
12753            );
12754        });
12755
12756        pane.update_in(cx, |pane, window, cx| {
12757            pane.activate_item(2, true, true, window, cx);
12758            assert_eq!(
12759                pane.active_item().unwrap().item_id(),
12760                dirty_multi_buffer.item_id(),
12761                "Should select the multi buffer in the pane"
12762            );
12763        });
12764        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12765            pane.close_active_item(
12766                &CloseActiveItem {
12767                    save_intent: None,
12768                    close_pinned: false,
12769                },
12770                window,
12771                cx,
12772            )
12773        });
12774        cx.background_executor.run_until_parked();
12775        assert!(
12776            !cx.has_pending_prompt(),
12777            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
12778        );
12779        close_multi_buffer_task
12780            .await
12781            .expect("Closing multi buffer failed");
12782        pane.update(cx, |pane, cx| {
12783            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
12784            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
12785            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
12786            assert_eq!(
12787                pane.items()
12788                    .map(|item| item.item_id())
12789                    .sorted()
12790                    .collect::<Vec<_>>(),
12791                vec![
12792                    dirty_regular_buffer.item_id(),
12793                    dirty_regular_buffer_2.item_id(),
12794                ],
12795                "Should have no multi buffer left in the pane"
12796            );
12797            assert!(dirty_regular_buffer.read(cx).is_dirty);
12798            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
12799        });
12800    }
12801
12802    #[gpui::test]
12803    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
12804        init_test(cx);
12805        let fs = FakeFs::new(cx.executor());
12806        let project = Project::test(fs, [], cx).await;
12807        let (multi_workspace, cx) =
12808            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12809        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12810
12811        // Add a new panel to the right dock, opening the dock and setting the
12812        // focus to the new panel.
12813        let panel = workspace.update_in(cx, |workspace, window, cx| {
12814            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12815            workspace.add_panel(panel.clone(), window, cx);
12816
12817            workspace
12818                .right_dock()
12819                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12820
12821            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12822
12823            panel
12824        });
12825
12826        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12827        // panel to the next valid position which, in this case, is the left
12828        // dock.
12829        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12830        workspace.update(cx, |workspace, cx| {
12831            assert!(workspace.left_dock().read(cx).is_open());
12832            assert_eq!(panel.read(cx).position, DockPosition::Left);
12833        });
12834
12835        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12836        // panel to the next valid position which, in this case, is the bottom
12837        // dock.
12838        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12839        workspace.update(cx, |workspace, cx| {
12840            assert!(workspace.bottom_dock().read(cx).is_open());
12841            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
12842        });
12843
12844        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
12845        // around moving the panel to its initial position, the right dock.
12846        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12847        workspace.update(cx, |workspace, cx| {
12848            assert!(workspace.right_dock().read(cx).is_open());
12849            assert_eq!(panel.read(cx).position, DockPosition::Right);
12850        });
12851
12852        // Remove focus from the panel, ensuring that, if the panel is not
12853        // focused, the `MoveFocusedPanelToNextPosition` action does not update
12854        // the panel's position, so the panel is still in the right dock.
12855        workspace.update_in(cx, |workspace, window, cx| {
12856            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12857        });
12858
12859        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12860        workspace.update(cx, |workspace, cx| {
12861            assert!(workspace.right_dock().read(cx).is_open());
12862            assert_eq!(panel.read(cx).position, DockPosition::Right);
12863        });
12864    }
12865
12866    #[gpui::test]
12867    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
12868        init_test(cx);
12869
12870        let fs = FakeFs::new(cx.executor());
12871        let project = Project::test(fs, [], cx).await;
12872        let (workspace, cx) =
12873            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12874
12875        let item_1 = cx.new(|cx| {
12876            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12877        });
12878        workspace.update_in(cx, |workspace, window, cx| {
12879            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12880            workspace.move_item_to_pane_in_direction(
12881                &MoveItemToPaneInDirection {
12882                    direction: SplitDirection::Right,
12883                    focus: true,
12884                    clone: false,
12885                },
12886                window,
12887                cx,
12888            );
12889            workspace.move_item_to_pane_at_index(
12890                &MoveItemToPane {
12891                    destination: 3,
12892                    focus: true,
12893                    clone: false,
12894                },
12895                window,
12896                cx,
12897            );
12898
12899            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
12900            assert_eq!(
12901                pane_items_paths(&workspace.active_pane, cx),
12902                vec!["first.txt".to_string()],
12903                "Single item was not moved anywhere"
12904            );
12905        });
12906
12907        let item_2 = cx.new(|cx| {
12908            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
12909        });
12910        workspace.update_in(cx, |workspace, window, cx| {
12911            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
12912            assert_eq!(
12913                pane_items_paths(&workspace.panes[0], cx),
12914                vec!["first.txt".to_string(), "second.txt".to_string()],
12915            );
12916            workspace.move_item_to_pane_in_direction(
12917                &MoveItemToPaneInDirection {
12918                    direction: SplitDirection::Right,
12919                    focus: true,
12920                    clone: false,
12921                },
12922                window,
12923                cx,
12924            );
12925
12926            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
12927            assert_eq!(
12928                pane_items_paths(&workspace.panes[0], cx),
12929                vec!["first.txt".to_string()],
12930                "After moving, one item should be left in the original pane"
12931            );
12932            assert_eq!(
12933                pane_items_paths(&workspace.panes[1], cx),
12934                vec!["second.txt".to_string()],
12935                "New item should have been moved to the new pane"
12936            );
12937        });
12938
12939        let item_3 = cx.new(|cx| {
12940            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
12941        });
12942        workspace.update_in(cx, |workspace, window, cx| {
12943            let original_pane = workspace.panes[0].clone();
12944            workspace.set_active_pane(&original_pane, window, cx);
12945            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
12946            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
12947            assert_eq!(
12948                pane_items_paths(&workspace.active_pane, cx),
12949                vec!["first.txt".to_string(), "third.txt".to_string()],
12950                "New pane should be ready to move one item out"
12951            );
12952
12953            workspace.move_item_to_pane_at_index(
12954                &MoveItemToPane {
12955                    destination: 3,
12956                    focus: true,
12957                    clone: false,
12958                },
12959                window,
12960                cx,
12961            );
12962            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
12963            assert_eq!(
12964                pane_items_paths(&workspace.active_pane, cx),
12965                vec!["first.txt".to_string()],
12966                "After moving, one item should be left in the original pane"
12967            );
12968            assert_eq!(
12969                pane_items_paths(&workspace.panes[1], cx),
12970                vec!["second.txt".to_string()],
12971                "Previously created pane should be unchanged"
12972            );
12973            assert_eq!(
12974                pane_items_paths(&workspace.panes[2], cx),
12975                vec!["third.txt".to_string()],
12976                "New item should have been moved to the new pane"
12977            );
12978        });
12979    }
12980
12981    #[gpui::test]
12982    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
12983        init_test(cx);
12984
12985        let fs = FakeFs::new(cx.executor());
12986        let project = Project::test(fs, [], cx).await;
12987        let (workspace, cx) =
12988            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12989
12990        let item_1 = cx.new(|cx| {
12991            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12992        });
12993        workspace.update_in(cx, |workspace, window, cx| {
12994            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12995            workspace.move_item_to_pane_in_direction(
12996                &MoveItemToPaneInDirection {
12997                    direction: SplitDirection::Right,
12998                    focus: true,
12999                    clone: true,
13000                },
13001                window,
13002                cx,
13003            );
13004        });
13005        cx.run_until_parked();
13006        workspace.update_in(cx, |workspace, window, cx| {
13007            workspace.move_item_to_pane_at_index(
13008                &MoveItemToPane {
13009                    destination: 3,
13010                    focus: true,
13011                    clone: true,
13012                },
13013                window,
13014                cx,
13015            );
13016        });
13017        cx.run_until_parked();
13018
13019        workspace.update(cx, |workspace, cx| {
13020            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
13021            for pane in workspace.panes() {
13022                assert_eq!(
13023                    pane_items_paths(pane, cx),
13024                    vec!["first.txt".to_string()],
13025                    "Single item exists in all panes"
13026                );
13027            }
13028        });
13029
13030        // verify that the active pane has been updated after waiting for the
13031        // pane focus event to fire and resolve
13032        workspace.read_with(cx, |workspace, _app| {
13033            assert_eq!(
13034                workspace.active_pane(),
13035                &workspace.panes[2],
13036                "The third pane should be the active one: {:?}",
13037                workspace.panes
13038            );
13039        })
13040    }
13041
13042    #[gpui::test]
13043    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
13044        init_test(cx);
13045
13046        let fs = FakeFs::new(cx.executor());
13047        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
13048
13049        let project = Project::test(fs, ["root".as_ref()], cx).await;
13050        let (workspace, cx) =
13051            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13052
13053        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13054        // Add item to pane A with project path
13055        let item_a = cx.new(|cx| {
13056            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13057        });
13058        workspace.update_in(cx, |workspace, window, cx| {
13059            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
13060        });
13061
13062        // Split to create pane B
13063        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
13064            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
13065        });
13066
13067        // Add item with SAME project path to pane B, and pin it
13068        let item_b = cx.new(|cx| {
13069            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13070        });
13071        pane_b.update_in(cx, |pane, window, cx| {
13072            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13073            pane.set_pinned_count(1);
13074        });
13075
13076        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
13077        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
13078
13079        // close_pinned: false should only close the unpinned copy
13080        workspace.update_in(cx, |workspace, window, cx| {
13081            workspace.close_item_in_all_panes(
13082                &CloseItemInAllPanes {
13083                    save_intent: Some(SaveIntent::Close),
13084                    close_pinned: false,
13085                },
13086                window,
13087                cx,
13088            )
13089        });
13090        cx.executor().run_until_parked();
13091
13092        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
13093        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13094        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
13095        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
13096
13097        // Split again, seeing as closing the previous item also closed its
13098        // pane, so only pane remains, which does not allow us to properly test
13099        // that both items close when `close_pinned: true`.
13100        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
13101            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
13102        });
13103
13104        // Add an item with the same project path to pane C so that
13105        // close_item_in_all_panes can determine what to close across all panes
13106        // (it reads the active item from the active pane, and split_pane
13107        // creates an empty pane).
13108        let item_c = cx.new(|cx| {
13109            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13110        });
13111        pane_c.update_in(cx, |pane, window, cx| {
13112            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
13113        });
13114
13115        // close_pinned: true should close the pinned copy too
13116        workspace.update_in(cx, |workspace, window, cx| {
13117            let panes_count = workspace.panes().len();
13118            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
13119
13120            workspace.close_item_in_all_panes(
13121                &CloseItemInAllPanes {
13122                    save_intent: Some(SaveIntent::Close),
13123                    close_pinned: true,
13124                },
13125                window,
13126                cx,
13127            )
13128        });
13129        cx.executor().run_until_parked();
13130
13131        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13132        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
13133        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
13134        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
13135    }
13136
13137    mod register_project_item_tests {
13138
13139        use super::*;
13140
13141        // View
13142        struct TestPngItemView {
13143            focus_handle: FocusHandle,
13144        }
13145        // Model
13146        struct TestPngItem {}
13147
13148        impl project::ProjectItem for TestPngItem {
13149            fn try_open(
13150                _project: &Entity<Project>,
13151                path: &ProjectPath,
13152                cx: &mut App,
13153            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13154                if path.path.extension().unwrap() == "png" {
13155                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
13156                } else {
13157                    None
13158                }
13159            }
13160
13161            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13162                None
13163            }
13164
13165            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13166                None
13167            }
13168
13169            fn is_dirty(&self) -> bool {
13170                false
13171            }
13172        }
13173
13174        impl Item for TestPngItemView {
13175            type Event = ();
13176            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13177                "".into()
13178            }
13179        }
13180        impl EventEmitter<()> for TestPngItemView {}
13181        impl Focusable for TestPngItemView {
13182            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13183                self.focus_handle.clone()
13184            }
13185        }
13186
13187        impl Render for TestPngItemView {
13188            fn render(
13189                &mut self,
13190                _window: &mut Window,
13191                _cx: &mut Context<Self>,
13192            ) -> impl IntoElement {
13193                Empty
13194            }
13195        }
13196
13197        impl ProjectItem for TestPngItemView {
13198            type Item = TestPngItem;
13199
13200            fn for_project_item(
13201                _project: Entity<Project>,
13202                _pane: Option<&Pane>,
13203                _item: Entity<Self::Item>,
13204                _: &mut Window,
13205                cx: &mut Context<Self>,
13206            ) -> Self
13207            where
13208                Self: Sized,
13209            {
13210                Self {
13211                    focus_handle: cx.focus_handle(),
13212                }
13213            }
13214        }
13215
13216        // View
13217        struct TestIpynbItemView {
13218            focus_handle: FocusHandle,
13219        }
13220        // Model
13221        struct TestIpynbItem {}
13222
13223        impl project::ProjectItem for TestIpynbItem {
13224            fn try_open(
13225                _project: &Entity<Project>,
13226                path: &ProjectPath,
13227                cx: &mut App,
13228            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13229                if path.path.extension().unwrap() == "ipynb" {
13230                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
13231                } else {
13232                    None
13233                }
13234            }
13235
13236            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13237                None
13238            }
13239
13240            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13241                None
13242            }
13243
13244            fn is_dirty(&self) -> bool {
13245                false
13246            }
13247        }
13248
13249        impl Item for TestIpynbItemView {
13250            type Event = ();
13251            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13252                "".into()
13253            }
13254        }
13255        impl EventEmitter<()> for TestIpynbItemView {}
13256        impl Focusable for TestIpynbItemView {
13257            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13258                self.focus_handle.clone()
13259            }
13260        }
13261
13262        impl Render for TestIpynbItemView {
13263            fn render(
13264                &mut self,
13265                _window: &mut Window,
13266                _cx: &mut Context<Self>,
13267            ) -> impl IntoElement {
13268                Empty
13269            }
13270        }
13271
13272        impl ProjectItem for TestIpynbItemView {
13273            type Item = TestIpynbItem;
13274
13275            fn for_project_item(
13276                _project: Entity<Project>,
13277                _pane: Option<&Pane>,
13278                _item: Entity<Self::Item>,
13279                _: &mut Window,
13280                cx: &mut Context<Self>,
13281            ) -> Self
13282            where
13283                Self: Sized,
13284            {
13285                Self {
13286                    focus_handle: cx.focus_handle(),
13287                }
13288            }
13289        }
13290
13291        struct TestAlternatePngItemView {
13292            focus_handle: FocusHandle,
13293        }
13294
13295        impl Item for TestAlternatePngItemView {
13296            type Event = ();
13297            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13298                "".into()
13299            }
13300        }
13301
13302        impl EventEmitter<()> for TestAlternatePngItemView {}
13303        impl Focusable for TestAlternatePngItemView {
13304            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13305                self.focus_handle.clone()
13306            }
13307        }
13308
13309        impl Render for TestAlternatePngItemView {
13310            fn render(
13311                &mut self,
13312                _window: &mut Window,
13313                _cx: &mut Context<Self>,
13314            ) -> impl IntoElement {
13315                Empty
13316            }
13317        }
13318
13319        impl ProjectItem for TestAlternatePngItemView {
13320            type Item = TestPngItem;
13321
13322            fn for_project_item(
13323                _project: Entity<Project>,
13324                _pane: Option<&Pane>,
13325                _item: Entity<Self::Item>,
13326                _: &mut Window,
13327                cx: &mut Context<Self>,
13328            ) -> Self
13329            where
13330                Self: Sized,
13331            {
13332                Self {
13333                    focus_handle: cx.focus_handle(),
13334                }
13335            }
13336        }
13337
13338        #[gpui::test]
13339        async fn test_register_project_item(cx: &mut TestAppContext) {
13340            init_test(cx);
13341
13342            cx.update(|cx| {
13343                register_project_item::<TestPngItemView>(cx);
13344                register_project_item::<TestIpynbItemView>(cx);
13345            });
13346
13347            let fs = FakeFs::new(cx.executor());
13348            fs.insert_tree(
13349                "/root1",
13350                json!({
13351                    "one.png": "BINARYDATAHERE",
13352                    "two.ipynb": "{ totally a notebook }",
13353                    "three.txt": "editing text, sure why not?"
13354                }),
13355            )
13356            .await;
13357
13358            let project = Project::test(fs, ["root1".as_ref()], cx).await;
13359            let (workspace, cx) =
13360                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13361
13362            let worktree_id = project.update(cx, |project, cx| {
13363                project.worktrees(cx).next().unwrap().read(cx).id()
13364            });
13365
13366            let handle = workspace
13367                .update_in(cx, |workspace, window, cx| {
13368                    let project_path = (worktree_id, rel_path("one.png"));
13369                    workspace.open_path(project_path, None, true, window, cx)
13370                })
13371                .await
13372                .unwrap();
13373
13374            // Now we can check if the handle we got back errored or not
13375            assert_eq!(
13376                handle.to_any_view().entity_type(),
13377                TypeId::of::<TestPngItemView>()
13378            );
13379
13380            let handle = workspace
13381                .update_in(cx, |workspace, window, cx| {
13382                    let project_path = (worktree_id, rel_path("two.ipynb"));
13383                    workspace.open_path(project_path, None, true, window, cx)
13384                })
13385                .await
13386                .unwrap();
13387
13388            assert_eq!(
13389                handle.to_any_view().entity_type(),
13390                TypeId::of::<TestIpynbItemView>()
13391            );
13392
13393            let handle = workspace
13394                .update_in(cx, |workspace, window, cx| {
13395                    let project_path = (worktree_id, rel_path("three.txt"));
13396                    workspace.open_path(project_path, None, true, window, cx)
13397                })
13398                .await;
13399            assert!(handle.is_err());
13400        }
13401
13402        #[gpui::test]
13403        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
13404            init_test(cx);
13405
13406            cx.update(|cx| {
13407                register_project_item::<TestPngItemView>(cx);
13408                register_project_item::<TestAlternatePngItemView>(cx);
13409            });
13410
13411            let fs = FakeFs::new(cx.executor());
13412            fs.insert_tree(
13413                "/root1",
13414                json!({
13415                    "one.png": "BINARYDATAHERE",
13416                    "two.ipynb": "{ totally a notebook }",
13417                    "three.txt": "editing text, sure why not?"
13418                }),
13419            )
13420            .await;
13421            let project = Project::test(fs, ["root1".as_ref()], cx).await;
13422            let (workspace, cx) =
13423                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13424            let worktree_id = project.update(cx, |project, cx| {
13425                project.worktrees(cx).next().unwrap().read(cx).id()
13426            });
13427
13428            let handle = workspace
13429                .update_in(cx, |workspace, window, cx| {
13430                    let project_path = (worktree_id, rel_path("one.png"));
13431                    workspace.open_path(project_path, None, true, window, cx)
13432                })
13433                .await
13434                .unwrap();
13435
13436            // This _must_ be the second item registered
13437            assert_eq!(
13438                handle.to_any_view().entity_type(),
13439                TypeId::of::<TestAlternatePngItemView>()
13440            );
13441
13442            let handle = workspace
13443                .update_in(cx, |workspace, window, cx| {
13444                    let project_path = (worktree_id, rel_path("three.txt"));
13445                    workspace.open_path(project_path, None, true, window, cx)
13446                })
13447                .await;
13448            assert!(handle.is_err());
13449        }
13450    }
13451
13452    #[gpui::test]
13453    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
13454        init_test(cx);
13455
13456        let fs = FakeFs::new(cx.executor());
13457        let project = Project::test(fs, [], cx).await;
13458        let (workspace, _cx) =
13459            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13460
13461        // Test with status bar shown (default)
13462        workspace.read_with(cx, |workspace, cx| {
13463            let visible = workspace.status_bar_visible(cx);
13464            assert!(visible, "Status bar should be visible by default");
13465        });
13466
13467        // Test with status bar hidden
13468        cx.update_global(|store: &mut SettingsStore, cx| {
13469            store.update_user_settings(cx, |settings| {
13470                settings.status_bar.get_or_insert_default().show = Some(false);
13471            });
13472        });
13473
13474        workspace.read_with(cx, |workspace, cx| {
13475            let visible = workspace.status_bar_visible(cx);
13476            assert!(!visible, "Status bar should be hidden when show is false");
13477        });
13478
13479        // Test with status bar shown explicitly
13480        cx.update_global(|store: &mut SettingsStore, cx| {
13481            store.update_user_settings(cx, |settings| {
13482                settings.status_bar.get_or_insert_default().show = Some(true);
13483            });
13484        });
13485
13486        workspace.read_with(cx, |workspace, cx| {
13487            let visible = workspace.status_bar_visible(cx);
13488            assert!(visible, "Status bar should be visible when show is true");
13489        });
13490    }
13491
13492    #[gpui::test]
13493    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
13494        init_test(cx);
13495
13496        let fs = FakeFs::new(cx.executor());
13497        let project = Project::test(fs, [], cx).await;
13498        let (multi_workspace, cx) =
13499            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13500        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13501        let panel = workspace.update_in(cx, |workspace, window, cx| {
13502            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13503            workspace.add_panel(panel.clone(), window, cx);
13504
13505            workspace
13506                .right_dock()
13507                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13508
13509            panel
13510        });
13511
13512        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13513        let item_a = cx.new(TestItem::new);
13514        let item_b = cx.new(TestItem::new);
13515        let item_a_id = item_a.entity_id();
13516        let item_b_id = item_b.entity_id();
13517
13518        pane.update_in(cx, |pane, window, cx| {
13519            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
13520            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13521        });
13522
13523        pane.read_with(cx, |pane, _| {
13524            assert_eq!(pane.items_len(), 2);
13525            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
13526        });
13527
13528        workspace.update_in(cx, |workspace, window, cx| {
13529            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13530        });
13531
13532        workspace.update_in(cx, |_, window, cx| {
13533            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13534        });
13535
13536        // Assert that the `pane::CloseActiveItem` action is handled at the
13537        // workspace level when one of the dock panels is focused and, in that
13538        // case, the center pane's active item is closed but the focus is not
13539        // moved.
13540        cx.dispatch_action(pane::CloseActiveItem::default());
13541        cx.run_until_parked();
13542
13543        pane.read_with(cx, |pane, _| {
13544            assert_eq!(pane.items_len(), 1);
13545            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
13546        });
13547
13548        workspace.update_in(cx, |workspace, window, cx| {
13549            assert!(workspace.right_dock().read(cx).is_open());
13550            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13551        });
13552    }
13553
13554    #[gpui::test]
13555    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
13556        init_test(cx);
13557        let fs = FakeFs::new(cx.executor());
13558
13559        let project_a = Project::test(fs.clone(), [], cx).await;
13560        let project_b = Project::test(fs, [], cx).await;
13561
13562        let multi_workspace_handle =
13563            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
13564        cx.run_until_parked();
13565
13566        let workspace_a = multi_workspace_handle
13567            .read_with(cx, |mw, _| mw.workspace().clone())
13568            .unwrap();
13569
13570        let _workspace_b = multi_workspace_handle
13571            .update(cx, |mw, window, cx| {
13572                mw.test_add_workspace(project_b, window, cx)
13573            })
13574            .unwrap();
13575
13576        // Switch to workspace A
13577        multi_workspace_handle
13578            .update(cx, |mw, window, cx| {
13579                mw.activate_index(0, window, cx);
13580            })
13581            .unwrap();
13582
13583        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
13584
13585        // Add a panel to workspace A's right dock and open the dock
13586        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
13587            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13588            workspace.add_panel(panel.clone(), window, cx);
13589            workspace
13590                .right_dock()
13591                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13592            panel
13593        });
13594
13595        // Focus the panel through the workspace (matching existing test pattern)
13596        workspace_a.update_in(cx, |workspace, window, cx| {
13597            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13598        });
13599
13600        // Zoom the panel
13601        panel.update_in(cx, |panel, window, cx| {
13602            panel.set_zoomed(true, window, cx);
13603        });
13604
13605        // Verify the panel is zoomed and the dock is open
13606        workspace_a.update_in(cx, |workspace, window, cx| {
13607            assert!(
13608                workspace.right_dock().read(cx).is_open(),
13609                "dock should be open before switch"
13610            );
13611            assert!(
13612                panel.is_zoomed(window, cx),
13613                "panel should be zoomed before switch"
13614            );
13615            assert!(
13616                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
13617                "panel should be focused before switch"
13618            );
13619        });
13620
13621        // Switch to workspace B
13622        multi_workspace_handle
13623            .update(cx, |mw, window, cx| {
13624                mw.activate_index(1, window, cx);
13625            })
13626            .unwrap();
13627        cx.run_until_parked();
13628
13629        // Switch back to workspace A
13630        multi_workspace_handle
13631            .update(cx, |mw, window, cx| {
13632                mw.activate_index(0, window, cx);
13633            })
13634            .unwrap();
13635        cx.run_until_parked();
13636
13637        // Verify the panel is still zoomed and the dock is still open
13638        workspace_a.update_in(cx, |workspace, window, cx| {
13639            assert!(
13640                workspace.right_dock().read(cx).is_open(),
13641                "dock should still be open after switching back"
13642            );
13643            assert!(
13644                panel.is_zoomed(window, cx),
13645                "panel should still be zoomed after switching back"
13646            );
13647        });
13648    }
13649
13650    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
13651        pane.read(cx)
13652            .items()
13653            .flat_map(|item| {
13654                item.project_paths(cx)
13655                    .into_iter()
13656                    .map(|path| path.path.display(PathStyle::local()).into_owned())
13657            })
13658            .collect()
13659    }
13660
13661    pub fn init_test(cx: &mut TestAppContext) {
13662        cx.update(|cx| {
13663            let settings_store = SettingsStore::test(cx);
13664            cx.set_global(settings_store);
13665            cx.set_global(db::AppDatabase::test_new());
13666            theme::init(theme::LoadThemes::JustBase, cx);
13667        });
13668    }
13669
13670    #[gpui::test]
13671    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
13672        use settings::{ThemeName, ThemeSelection};
13673        use theme::SystemAppearance;
13674        use zed_actions::theme::ToggleMode;
13675
13676        init_test(cx);
13677
13678        let fs = FakeFs::new(cx.executor());
13679        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
13680
13681        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
13682            .await;
13683
13684        // Build a test project and workspace view so the test can invoke
13685        // the workspace action handler the same way the UI would.
13686        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
13687        let (workspace, cx) =
13688            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13689
13690        // Seed the settings file with a plain static light theme so the
13691        // first toggle always starts from a known persisted state.
13692        workspace.update_in(cx, |_workspace, _window, cx| {
13693            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
13694            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
13695                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
13696            });
13697        });
13698        cx.executor().advance_clock(Duration::from_millis(200));
13699        cx.run_until_parked();
13700
13701        // Confirm the initial persisted settings contain the static theme
13702        // we just wrote before any toggling happens.
13703        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13704        assert!(settings_text.contains(r#""theme": "One Light""#));
13705
13706        // Toggle once. This should migrate the persisted theme settings
13707        // into light/dark slots and enable system mode.
13708        workspace.update_in(cx, |workspace, window, cx| {
13709            workspace.toggle_theme_mode(&ToggleMode, window, cx);
13710        });
13711        cx.executor().advance_clock(Duration::from_millis(200));
13712        cx.run_until_parked();
13713
13714        // 1. Static -> Dynamic
13715        // this assertion checks theme changed from static to dynamic.
13716        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13717        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
13718        assert_eq!(
13719            parsed["theme"],
13720            serde_json::json!({
13721                "mode": "system",
13722                "light": "One Light",
13723                "dark": "One Dark"
13724            })
13725        );
13726
13727        // 2. Toggle again, suppose it will change the mode to light
13728        workspace.update_in(cx, |workspace, window, cx| {
13729            workspace.toggle_theme_mode(&ToggleMode, window, cx);
13730        });
13731        cx.executor().advance_clock(Duration::from_millis(200));
13732        cx.run_until_parked();
13733
13734        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13735        assert!(settings_text.contains(r#""mode": "light""#));
13736    }
13737
13738    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
13739        let item = TestProjectItem::new(id, path, cx);
13740        item.update(cx, |item, _| {
13741            item.is_dirty = true;
13742        });
13743        item
13744    }
13745
13746    #[gpui::test]
13747    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
13748        cx: &mut gpui::TestAppContext,
13749    ) {
13750        init_test(cx);
13751        let fs = FakeFs::new(cx.executor());
13752
13753        let project = Project::test(fs, [], cx).await;
13754        let (workspace, cx) =
13755            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13756
13757        let panel = workspace.update_in(cx, |workspace, window, cx| {
13758            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13759            workspace.add_panel(panel.clone(), window, cx);
13760            workspace
13761                .right_dock()
13762                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13763            panel
13764        });
13765
13766        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13767        pane.update_in(cx, |pane, window, cx| {
13768            let item = cx.new(TestItem::new);
13769            pane.add_item(Box::new(item), true, true, None, window, cx);
13770        });
13771
13772        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
13773        // mirrors the real-world flow and avoids side effects from directly
13774        // focusing the panel while the center pane is active.
13775        workspace.update_in(cx, |workspace, window, cx| {
13776            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13777        });
13778
13779        panel.update_in(cx, |panel, window, cx| {
13780            panel.set_zoomed(true, window, cx);
13781        });
13782
13783        workspace.update_in(cx, |workspace, window, cx| {
13784            assert!(workspace.right_dock().read(cx).is_open());
13785            assert!(panel.is_zoomed(window, cx));
13786            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13787        });
13788
13789        // Simulate a spurious pane::Event::Focus on the center pane while the
13790        // panel still has focus. This mirrors what happens during macOS window
13791        // activation: the center pane fires a focus event even though actual
13792        // focus remains on the dock panel.
13793        pane.update_in(cx, |_, _, cx| {
13794            cx.emit(pane::Event::Focus);
13795        });
13796
13797        // The dock must remain open because the panel had focus at the time the
13798        // event was processed. Before the fix, dock_to_preserve was None for
13799        // panels that don't implement pane(), causing the dock to close.
13800        workspace.update_in(cx, |workspace, window, cx| {
13801            assert!(
13802                workspace.right_dock().read(cx).is_open(),
13803                "Dock should stay open when its zoomed panel (without pane()) still has focus"
13804            );
13805            assert!(panel.is_zoomed(window, cx));
13806        });
13807    }
13808}