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, resolve_worktree_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(
 2164        &self,
 2165        open: bool,
 2166        has_notifications: bool,
 2167        show_toggle: bool,
 2168        cx: &mut App,
 2169    ) {
 2170        self.status_bar.update(cx, |status_bar, cx| {
 2171            status_bar.set_workspace_sidebar_open(open, cx);
 2172            status_bar.set_sidebar_has_notifications(has_notifications, cx);
 2173            status_bar.set_show_sidebar_toggle(show_toggle, cx);
 2174        });
 2175    }
 2176
 2177    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2178        self.sidebar_focus_handle = handle;
 2179    }
 2180
 2181    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2182        StatusBarSettings::get_global(cx).show
 2183    }
 2184
 2185    pub fn app_state(&self) -> &Arc<AppState> {
 2186        &self.app_state
 2187    }
 2188
 2189    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2190        self._panels_task = Some(task);
 2191    }
 2192
 2193    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2194        self._panels_task.take()
 2195    }
 2196
 2197    pub fn user_store(&self) -> &Entity<UserStore> {
 2198        &self.app_state.user_store
 2199    }
 2200
 2201    pub fn project(&self) -> &Entity<Project> {
 2202        &self.project
 2203    }
 2204
 2205    pub fn path_style(&self, cx: &App) -> PathStyle {
 2206        self.project.read(cx).path_style(cx)
 2207    }
 2208
 2209    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2210        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2211
 2212        for pane_handle in &self.panes {
 2213            let pane = pane_handle.read(cx);
 2214
 2215            for entry in pane.activation_history() {
 2216                history.insert(
 2217                    entry.entity_id,
 2218                    history
 2219                        .get(&entry.entity_id)
 2220                        .cloned()
 2221                        .unwrap_or(0)
 2222                        .max(entry.timestamp),
 2223                );
 2224            }
 2225        }
 2226
 2227        history
 2228    }
 2229
 2230    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2231        let mut recent_item: Option<Entity<T>> = None;
 2232        let mut recent_timestamp = 0;
 2233        for pane_handle in &self.panes {
 2234            let pane = pane_handle.read(cx);
 2235            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2236                pane.items().map(|item| (item.item_id(), item)).collect();
 2237            for entry in pane.activation_history() {
 2238                if entry.timestamp > recent_timestamp
 2239                    && let Some(&item) = item_map.get(&entry.entity_id)
 2240                    && let Some(typed_item) = item.act_as::<T>(cx)
 2241                {
 2242                    recent_timestamp = entry.timestamp;
 2243                    recent_item = Some(typed_item);
 2244                }
 2245            }
 2246        }
 2247        recent_item
 2248    }
 2249
 2250    pub fn recent_navigation_history_iter(
 2251        &self,
 2252        cx: &App,
 2253    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2254        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2255        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2256
 2257        for pane in &self.panes {
 2258            let pane = pane.read(cx);
 2259
 2260            pane.nav_history()
 2261                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2262                    if let Some(fs_path) = &fs_path {
 2263                        abs_paths_opened
 2264                            .entry(fs_path.clone())
 2265                            .or_default()
 2266                            .insert(project_path.clone());
 2267                    }
 2268                    let timestamp = entry.timestamp;
 2269                    match history.entry(project_path) {
 2270                        hash_map::Entry::Occupied(mut entry) => {
 2271                            let (_, old_timestamp) = entry.get();
 2272                            if &timestamp > old_timestamp {
 2273                                entry.insert((fs_path, timestamp));
 2274                            }
 2275                        }
 2276                        hash_map::Entry::Vacant(entry) => {
 2277                            entry.insert((fs_path, timestamp));
 2278                        }
 2279                    }
 2280                });
 2281
 2282            if let Some(item) = pane.active_item()
 2283                && let Some(project_path) = item.project_path(cx)
 2284            {
 2285                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2286
 2287                if let Some(fs_path) = &fs_path {
 2288                    abs_paths_opened
 2289                        .entry(fs_path.clone())
 2290                        .or_default()
 2291                        .insert(project_path.clone());
 2292                }
 2293
 2294                history.insert(project_path, (fs_path, std::usize::MAX));
 2295            }
 2296        }
 2297
 2298        history
 2299            .into_iter()
 2300            .sorted_by_key(|(_, (_, order))| *order)
 2301            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2302            .rev()
 2303            .filter(move |(history_path, abs_path)| {
 2304                let latest_project_path_opened = abs_path
 2305                    .as_ref()
 2306                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2307                    .and_then(|project_paths| {
 2308                        project_paths
 2309                            .iter()
 2310                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2311                    });
 2312
 2313                latest_project_path_opened.is_none_or(|path| path == history_path)
 2314            })
 2315    }
 2316
 2317    pub fn recent_navigation_history(
 2318        &self,
 2319        limit: Option<usize>,
 2320        cx: &App,
 2321    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2322        self.recent_navigation_history_iter(cx)
 2323            .take(limit.unwrap_or(usize::MAX))
 2324            .collect()
 2325    }
 2326
 2327    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2328        for pane in &self.panes {
 2329            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2330        }
 2331    }
 2332
 2333    fn navigate_history(
 2334        &mut self,
 2335        pane: WeakEntity<Pane>,
 2336        mode: NavigationMode,
 2337        window: &mut Window,
 2338        cx: &mut Context<Workspace>,
 2339    ) -> Task<Result<()>> {
 2340        self.navigate_history_impl(
 2341            pane,
 2342            mode,
 2343            window,
 2344            &mut |history, cx| history.pop(mode, cx),
 2345            cx,
 2346        )
 2347    }
 2348
 2349    fn navigate_tag_history(
 2350        &mut self,
 2351        pane: WeakEntity<Pane>,
 2352        mode: TagNavigationMode,
 2353        window: &mut Window,
 2354        cx: &mut Context<Workspace>,
 2355    ) -> Task<Result<()>> {
 2356        self.navigate_history_impl(
 2357            pane,
 2358            NavigationMode::Normal,
 2359            window,
 2360            &mut |history, _cx| history.pop_tag(mode),
 2361            cx,
 2362        )
 2363    }
 2364
 2365    fn navigate_history_impl(
 2366        &mut self,
 2367        pane: WeakEntity<Pane>,
 2368        mode: NavigationMode,
 2369        window: &mut Window,
 2370        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2371        cx: &mut Context<Workspace>,
 2372    ) -> Task<Result<()>> {
 2373        let to_load = if let Some(pane) = pane.upgrade() {
 2374            pane.update(cx, |pane, cx| {
 2375                window.focus(&pane.focus_handle(cx), cx);
 2376                loop {
 2377                    // Retrieve the weak item handle from the history.
 2378                    let entry = cb(pane.nav_history_mut(), cx)?;
 2379
 2380                    // If the item is still present in this pane, then activate it.
 2381                    if let Some(index) = entry
 2382                        .item
 2383                        .upgrade()
 2384                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2385                    {
 2386                        let prev_active_item_index = pane.active_item_index();
 2387                        pane.nav_history_mut().set_mode(mode);
 2388                        pane.activate_item(index, true, true, window, cx);
 2389                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2390
 2391                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2392                        if let Some(data) = entry.data {
 2393                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2394                        }
 2395
 2396                        if navigated {
 2397                            break None;
 2398                        }
 2399                    } else {
 2400                        // If the item is no longer present in this pane, then retrieve its
 2401                        // path info in order to reopen it.
 2402                        break pane
 2403                            .nav_history()
 2404                            .path_for_item(entry.item.id())
 2405                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2406                    }
 2407                }
 2408            })
 2409        } else {
 2410            None
 2411        };
 2412
 2413        if let Some((project_path, abs_path, entry)) = to_load {
 2414            // If the item was no longer present, then load it again from its previous path, first try the local path
 2415            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2416
 2417            cx.spawn_in(window, async move  |workspace, cx| {
 2418                let open_by_project_path = open_by_project_path.await;
 2419                let mut navigated = false;
 2420                match open_by_project_path
 2421                    .with_context(|| format!("Navigating to {project_path:?}"))
 2422                {
 2423                    Ok((project_entry_id, build_item)) => {
 2424                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2425                            pane.nav_history_mut().set_mode(mode);
 2426                            pane.active_item().map(|p| p.item_id())
 2427                        })?;
 2428
 2429                        pane.update_in(cx, |pane, window, cx| {
 2430                            let item = pane.open_item(
 2431                                project_entry_id,
 2432                                project_path,
 2433                                true,
 2434                                entry.is_preview,
 2435                                true,
 2436                                None,
 2437                                window, cx,
 2438                                build_item,
 2439                            );
 2440                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2441                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2442                            if let Some(data) = entry.data {
 2443                                navigated |= item.navigate(data, window, cx);
 2444                            }
 2445                        })?;
 2446                    }
 2447                    Err(open_by_project_path_e) => {
 2448                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2449                        // and its worktree is now dropped
 2450                        if let Some(abs_path) = abs_path {
 2451                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2452                                pane.nav_history_mut().set_mode(mode);
 2453                                pane.active_item().map(|p| p.item_id())
 2454                            })?;
 2455                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2456                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2457                            })?;
 2458                            match open_by_abs_path
 2459                                .await
 2460                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2461                            {
 2462                                Ok(item) => {
 2463                                    pane.update_in(cx, |pane, window, cx| {
 2464                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2465                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2466                                        if let Some(data) = entry.data {
 2467                                            navigated |= item.navigate(data, window, cx);
 2468                                        }
 2469                                    })?;
 2470                                }
 2471                                Err(open_by_abs_path_e) => {
 2472                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2473                                }
 2474                            }
 2475                        }
 2476                    }
 2477                }
 2478
 2479                if !navigated {
 2480                    workspace
 2481                        .update_in(cx, |workspace, window, cx| {
 2482                            Self::navigate_history(workspace, pane, mode, window, cx)
 2483                        })?
 2484                        .await?;
 2485                }
 2486
 2487                Ok(())
 2488            })
 2489        } else {
 2490            Task::ready(Ok(()))
 2491        }
 2492    }
 2493
 2494    pub fn go_back(
 2495        &mut self,
 2496        pane: WeakEntity<Pane>,
 2497        window: &mut Window,
 2498        cx: &mut Context<Workspace>,
 2499    ) -> Task<Result<()>> {
 2500        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2501    }
 2502
 2503    pub fn go_forward(
 2504        &mut self,
 2505        pane: WeakEntity<Pane>,
 2506        window: &mut Window,
 2507        cx: &mut Context<Workspace>,
 2508    ) -> Task<Result<()>> {
 2509        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2510    }
 2511
 2512    pub fn reopen_closed_item(
 2513        &mut self,
 2514        window: &mut Window,
 2515        cx: &mut Context<Workspace>,
 2516    ) -> Task<Result<()>> {
 2517        self.navigate_history(
 2518            self.active_pane().downgrade(),
 2519            NavigationMode::ReopeningClosedItem,
 2520            window,
 2521            cx,
 2522        )
 2523    }
 2524
 2525    pub fn client(&self) -> &Arc<Client> {
 2526        &self.app_state.client
 2527    }
 2528
 2529    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2530        self.titlebar_item = Some(item);
 2531        cx.notify();
 2532    }
 2533
 2534    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2535        self.on_prompt_for_new_path = Some(prompt)
 2536    }
 2537
 2538    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2539        self.on_prompt_for_open_path = Some(prompt)
 2540    }
 2541
 2542    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2543        self.terminal_provider = Some(Box::new(provider));
 2544    }
 2545
 2546    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2547        self.debugger_provider = Some(Arc::new(provider));
 2548    }
 2549
 2550    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2551        self.debugger_provider.clone()
 2552    }
 2553
 2554    pub fn prompt_for_open_path(
 2555        &mut self,
 2556        path_prompt_options: PathPromptOptions,
 2557        lister: DirectoryLister,
 2558        window: &mut Window,
 2559        cx: &mut Context<Self>,
 2560    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2561        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2562            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2563            let rx = prompt(self, lister, window, cx);
 2564            self.on_prompt_for_open_path = Some(prompt);
 2565            rx
 2566        } else {
 2567            let (tx, rx) = oneshot::channel();
 2568            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2569
 2570            cx.spawn_in(window, async move |workspace, cx| {
 2571                let Ok(result) = abs_path.await else {
 2572                    return Ok(());
 2573                };
 2574
 2575                match result {
 2576                    Ok(result) => {
 2577                        tx.send(result).ok();
 2578                    }
 2579                    Err(err) => {
 2580                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2581                            workspace.show_portal_error(err.to_string(), cx);
 2582                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2583                            let rx = prompt(workspace, lister, window, cx);
 2584                            workspace.on_prompt_for_open_path = Some(prompt);
 2585                            rx
 2586                        })?;
 2587                        if let Ok(path) = rx.await {
 2588                            tx.send(path).ok();
 2589                        }
 2590                    }
 2591                };
 2592                anyhow::Ok(())
 2593            })
 2594            .detach();
 2595
 2596            rx
 2597        }
 2598    }
 2599
 2600    pub fn prompt_for_new_path(
 2601        &mut self,
 2602        lister: DirectoryLister,
 2603        suggested_name: Option<String>,
 2604        window: &mut Window,
 2605        cx: &mut Context<Self>,
 2606    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2607        if self.project.read(cx).is_via_collab()
 2608            || self.project.read(cx).is_via_remote_server()
 2609            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2610        {
 2611            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2612            let rx = prompt(self, lister, suggested_name, window, cx);
 2613            self.on_prompt_for_new_path = Some(prompt);
 2614            return rx;
 2615        }
 2616
 2617        let (tx, rx) = oneshot::channel();
 2618        cx.spawn_in(window, async move |workspace, cx| {
 2619            let abs_path = workspace.update(cx, |workspace, cx| {
 2620                let relative_to = workspace
 2621                    .most_recent_active_path(cx)
 2622                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2623                    .or_else(|| {
 2624                        let project = workspace.project.read(cx);
 2625                        project.visible_worktrees(cx).find_map(|worktree| {
 2626                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2627                        })
 2628                    })
 2629                    .or_else(std::env::home_dir)
 2630                    .unwrap_or_else(|| PathBuf::from(""));
 2631                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2632            })?;
 2633            let abs_path = match abs_path.await? {
 2634                Ok(path) => path,
 2635                Err(err) => {
 2636                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2637                        workspace.show_portal_error(err.to_string(), cx);
 2638
 2639                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2640                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2641                        workspace.on_prompt_for_new_path = Some(prompt);
 2642                        rx
 2643                    })?;
 2644                    if let Ok(path) = rx.await {
 2645                        tx.send(path).ok();
 2646                    }
 2647                    return anyhow::Ok(());
 2648                }
 2649            };
 2650
 2651            tx.send(abs_path.map(|path| vec![path])).ok();
 2652            anyhow::Ok(())
 2653        })
 2654        .detach();
 2655
 2656        rx
 2657    }
 2658
 2659    pub fn titlebar_item(&self) -> Option<AnyView> {
 2660        self.titlebar_item.clone()
 2661    }
 2662
 2663    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2664    /// When set, git-related operations should use this worktree instead of deriving
 2665    /// the active worktree from the focused file.
 2666    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2667        self.active_worktree_override
 2668    }
 2669
 2670    pub fn set_active_worktree_override(
 2671        &mut self,
 2672        worktree_id: Option<WorktreeId>,
 2673        cx: &mut Context<Self>,
 2674    ) {
 2675        self.active_worktree_override = worktree_id;
 2676        cx.notify();
 2677    }
 2678
 2679    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2680        self.active_worktree_override = None;
 2681        cx.notify();
 2682    }
 2683
 2684    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2685    ///
 2686    /// If the given workspace has a local project, then it will be passed
 2687    /// to the callback. Otherwise, a new empty window will be created.
 2688    pub fn with_local_workspace<T, F>(
 2689        &mut self,
 2690        window: &mut Window,
 2691        cx: &mut Context<Self>,
 2692        callback: F,
 2693    ) -> Task<Result<T>>
 2694    where
 2695        T: 'static,
 2696        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2697    {
 2698        if self.project.read(cx).is_local() {
 2699            Task::ready(Ok(callback(self, window, cx)))
 2700        } else {
 2701            let env = self.project.read(cx).cli_environment(cx);
 2702            let task = Self::new_local(
 2703                Vec::new(),
 2704                self.app_state.clone(),
 2705                None,
 2706                env,
 2707                None,
 2708                true,
 2709                cx,
 2710            );
 2711            cx.spawn_in(window, async move |_vh, cx| {
 2712                let OpenResult {
 2713                    window: multi_workspace_window,
 2714                    ..
 2715                } = task.await?;
 2716                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2717                    let workspace = multi_workspace.workspace().clone();
 2718                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2719                })
 2720            })
 2721        }
 2722    }
 2723
 2724    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2725    ///
 2726    /// If the given workspace has a local project, then it will be passed
 2727    /// to the callback. Otherwise, a new empty window will be created.
 2728    pub fn with_local_or_wsl_workspace<T, F>(
 2729        &mut self,
 2730        window: &mut Window,
 2731        cx: &mut Context<Self>,
 2732        callback: F,
 2733    ) -> Task<Result<T>>
 2734    where
 2735        T: 'static,
 2736        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2737    {
 2738        let project = self.project.read(cx);
 2739        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2740            Task::ready(Ok(callback(self, window, cx)))
 2741        } else {
 2742            let env = self.project.read(cx).cli_environment(cx);
 2743            let task = Self::new_local(
 2744                Vec::new(),
 2745                self.app_state.clone(),
 2746                None,
 2747                env,
 2748                None,
 2749                true,
 2750                cx,
 2751            );
 2752            cx.spawn_in(window, async move |_vh, cx| {
 2753                let OpenResult {
 2754                    window: multi_workspace_window,
 2755                    ..
 2756                } = task.await?;
 2757                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2758                    let workspace = multi_workspace.workspace().clone();
 2759                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2760                })
 2761            })
 2762        }
 2763    }
 2764
 2765    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2766        self.project.read(cx).worktrees(cx)
 2767    }
 2768
 2769    pub fn visible_worktrees<'a>(
 2770        &self,
 2771        cx: &'a App,
 2772    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2773        self.project.read(cx).visible_worktrees(cx)
 2774    }
 2775
 2776    #[cfg(any(test, feature = "test-support"))]
 2777    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2778        let futures = self
 2779            .worktrees(cx)
 2780            .filter_map(|worktree| worktree.read(cx).as_local())
 2781            .map(|worktree| worktree.scan_complete())
 2782            .collect::<Vec<_>>();
 2783        async move {
 2784            for future in futures {
 2785                future.await;
 2786            }
 2787        }
 2788    }
 2789
 2790    pub fn close_global(cx: &mut App) {
 2791        cx.defer(|cx| {
 2792            cx.windows().iter().find(|window| {
 2793                window
 2794                    .update(cx, |_, window, _| {
 2795                        if window.is_window_active() {
 2796                            //This can only get called when the window's project connection has been lost
 2797                            //so we don't need to prompt the user for anything and instead just close the window
 2798                            window.remove_window();
 2799                            true
 2800                        } else {
 2801                            false
 2802                        }
 2803                    })
 2804                    .unwrap_or(false)
 2805            });
 2806        });
 2807    }
 2808
 2809    pub fn move_focused_panel_to_next_position(
 2810        &mut self,
 2811        _: &MoveFocusedPanelToNextPosition,
 2812        window: &mut Window,
 2813        cx: &mut Context<Self>,
 2814    ) {
 2815        let docks = self.all_docks();
 2816        let active_dock = docks
 2817            .into_iter()
 2818            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2819
 2820        if let Some(dock) = active_dock {
 2821            dock.update(cx, |dock, cx| {
 2822                let active_panel = dock
 2823                    .active_panel()
 2824                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2825
 2826                if let Some(panel) = active_panel {
 2827                    panel.move_to_next_position(window, cx);
 2828                }
 2829            })
 2830        }
 2831    }
 2832
 2833    pub fn prepare_to_close(
 2834        &mut self,
 2835        close_intent: CloseIntent,
 2836        window: &mut Window,
 2837        cx: &mut Context<Self>,
 2838    ) -> Task<Result<bool>> {
 2839        let active_call = self.active_global_call();
 2840
 2841        cx.spawn_in(window, async move |this, cx| {
 2842            this.update(cx, |this, _| {
 2843                if close_intent == CloseIntent::CloseWindow {
 2844                    this.removing = true;
 2845                }
 2846            })?;
 2847
 2848            let workspace_count = cx.update(|_window, cx| {
 2849                cx.windows()
 2850                    .iter()
 2851                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 2852                    .count()
 2853            })?;
 2854
 2855            #[cfg(target_os = "macos")]
 2856            let save_last_workspace = false;
 2857
 2858            // On Linux and Windows, closing the last window should restore the last workspace.
 2859            #[cfg(not(target_os = "macos"))]
 2860            let save_last_workspace = {
 2861                let remaining_workspaces = cx.update(|_window, cx| {
 2862                    cx.windows()
 2863                        .iter()
 2864                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 2865                        .filter_map(|multi_workspace| {
 2866                            multi_workspace
 2867                                .update(cx, |multi_workspace, _, cx| {
 2868                                    multi_workspace.workspace().read(cx).removing
 2869                                })
 2870                                .ok()
 2871                        })
 2872                        .filter(|removing| !removing)
 2873                        .count()
 2874                })?;
 2875
 2876                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2877            };
 2878
 2879            if let Some(active_call) = active_call
 2880                && workspace_count == 1
 2881                && cx
 2882                    .update(|_window, cx| active_call.0.is_in_room(cx))
 2883                    .unwrap_or(false)
 2884            {
 2885                if close_intent == CloseIntent::CloseWindow {
 2886                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 2887                    let answer = cx.update(|window, cx| {
 2888                        window.prompt(
 2889                            PromptLevel::Warning,
 2890                            "Do you want to leave the current call?",
 2891                            None,
 2892                            &["Close window and hang up", "Cancel"],
 2893                            cx,
 2894                        )
 2895                    })?;
 2896
 2897                    if answer.await.log_err() == Some(1) {
 2898                        return anyhow::Ok(false);
 2899                    } else {
 2900                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 2901                            task.await.log_err();
 2902                        }
 2903                    }
 2904                }
 2905                if close_intent == CloseIntent::ReplaceWindow {
 2906                    _ = cx.update(|_window, cx| {
 2907                        let multi_workspace = cx
 2908                            .windows()
 2909                            .iter()
 2910                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 2911                            .next()
 2912                            .unwrap();
 2913                        let project = multi_workspace
 2914                            .read(cx)?
 2915                            .workspace()
 2916                            .read(cx)
 2917                            .project
 2918                            .clone();
 2919                        if project.read(cx).is_shared() {
 2920                            active_call.0.unshare_project(project, cx)?;
 2921                        }
 2922                        Ok::<_, anyhow::Error>(())
 2923                    });
 2924                }
 2925            }
 2926
 2927            let save_result = this
 2928                .update_in(cx, |this, window, cx| {
 2929                    this.save_all_internal(SaveIntent::Close, window, cx)
 2930                })?
 2931                .await;
 2932
 2933            // If we're not quitting, but closing, we remove the workspace from
 2934            // the current session.
 2935            if close_intent != CloseIntent::Quit
 2936                && !save_last_workspace
 2937                && save_result.as_ref().is_ok_and(|&res| res)
 2938            {
 2939                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2940                    .await;
 2941            }
 2942
 2943            save_result
 2944        })
 2945    }
 2946
 2947    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2948        self.save_all_internal(
 2949            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2950            window,
 2951            cx,
 2952        )
 2953        .detach_and_log_err(cx);
 2954    }
 2955
 2956    fn send_keystrokes(
 2957        &mut self,
 2958        action: &SendKeystrokes,
 2959        window: &mut Window,
 2960        cx: &mut Context<Self>,
 2961    ) {
 2962        let keystrokes: Vec<Keystroke> = action
 2963            .0
 2964            .split(' ')
 2965            .flat_map(|k| Keystroke::parse(k).log_err())
 2966            .map(|k| {
 2967                cx.keyboard_mapper()
 2968                    .map_key_equivalent(k, false)
 2969                    .inner()
 2970                    .clone()
 2971            })
 2972            .collect();
 2973        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2974    }
 2975
 2976    pub fn send_keystrokes_impl(
 2977        &mut self,
 2978        keystrokes: Vec<Keystroke>,
 2979        window: &mut Window,
 2980        cx: &mut Context<Self>,
 2981    ) -> Shared<Task<()>> {
 2982        let mut state = self.dispatching_keystrokes.borrow_mut();
 2983        if !state.dispatched.insert(keystrokes.clone()) {
 2984            cx.propagate();
 2985            return state.task.clone().unwrap();
 2986        }
 2987
 2988        state.queue.extend(keystrokes);
 2989
 2990        let keystrokes = self.dispatching_keystrokes.clone();
 2991        if state.task.is_none() {
 2992            state.task = Some(
 2993                window
 2994                    .spawn(cx, async move |cx| {
 2995                        // limit to 100 keystrokes to avoid infinite recursion.
 2996                        for _ in 0..100 {
 2997                            let keystroke = {
 2998                                let mut state = keystrokes.borrow_mut();
 2999                                let Some(keystroke) = state.queue.pop_front() else {
 3000                                    state.dispatched.clear();
 3001                                    state.task.take();
 3002                                    return;
 3003                                };
 3004                                keystroke
 3005                            };
 3006                            cx.update(|window, cx| {
 3007                                let focused = window.focused(cx);
 3008                                window.dispatch_keystroke(keystroke.clone(), cx);
 3009                                if window.focused(cx) != focused {
 3010                                    // dispatch_keystroke may cause the focus to change.
 3011                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3012                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3013                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3014                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3015                                    // )
 3016                                    window.draw(cx).clear();
 3017                                }
 3018                            })
 3019                            .ok();
 3020
 3021                            // Yield between synthetic keystrokes so deferred focus and
 3022                            // other effects can settle before dispatching the next key.
 3023                            yield_now().await;
 3024                        }
 3025
 3026                        *keystrokes.borrow_mut() = Default::default();
 3027                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3028                    })
 3029                    .shared(),
 3030            );
 3031        }
 3032        state.task.clone().unwrap()
 3033    }
 3034
 3035    fn save_all_internal(
 3036        &mut self,
 3037        mut save_intent: SaveIntent,
 3038        window: &mut Window,
 3039        cx: &mut Context<Self>,
 3040    ) -> Task<Result<bool>> {
 3041        if self.project.read(cx).is_disconnected(cx) {
 3042            return Task::ready(Ok(true));
 3043        }
 3044        let dirty_items = self
 3045            .panes
 3046            .iter()
 3047            .flat_map(|pane| {
 3048                pane.read(cx).items().filter_map(|item| {
 3049                    if item.is_dirty(cx) {
 3050                        item.tab_content_text(0, cx);
 3051                        Some((pane.downgrade(), item.boxed_clone()))
 3052                    } else {
 3053                        None
 3054                    }
 3055                })
 3056            })
 3057            .collect::<Vec<_>>();
 3058
 3059        let project = self.project.clone();
 3060        cx.spawn_in(window, async move |workspace, cx| {
 3061            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3062                let (serialize_tasks, remaining_dirty_items) =
 3063                    workspace.update_in(cx, |workspace, window, cx| {
 3064                        let mut remaining_dirty_items = Vec::new();
 3065                        let mut serialize_tasks = Vec::new();
 3066                        for (pane, item) in dirty_items {
 3067                            if let Some(task) = item
 3068                                .to_serializable_item_handle(cx)
 3069                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3070                            {
 3071                                serialize_tasks.push(task);
 3072                            } else {
 3073                                remaining_dirty_items.push((pane, item));
 3074                            }
 3075                        }
 3076                        (serialize_tasks, remaining_dirty_items)
 3077                    })?;
 3078
 3079                futures::future::try_join_all(serialize_tasks).await?;
 3080
 3081                if !remaining_dirty_items.is_empty() {
 3082                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3083                }
 3084
 3085                if remaining_dirty_items.len() > 1 {
 3086                    let answer = workspace.update_in(cx, |_, window, cx| {
 3087                        let detail = Pane::file_names_for_prompt(
 3088                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3089                            cx,
 3090                        );
 3091                        window.prompt(
 3092                            PromptLevel::Warning,
 3093                            "Do you want to save all changes in the following files?",
 3094                            Some(&detail),
 3095                            &["Save all", "Discard all", "Cancel"],
 3096                            cx,
 3097                        )
 3098                    })?;
 3099                    match answer.await.log_err() {
 3100                        Some(0) => save_intent = SaveIntent::SaveAll,
 3101                        Some(1) => save_intent = SaveIntent::Skip,
 3102                        Some(2) => return Ok(false),
 3103                        _ => {}
 3104                    }
 3105                }
 3106
 3107                remaining_dirty_items
 3108            } else {
 3109                dirty_items
 3110            };
 3111
 3112            for (pane, item) in dirty_items {
 3113                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3114                    (
 3115                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3116                        item.project_entry_ids(cx),
 3117                    )
 3118                })?;
 3119                if (singleton || !project_entry_ids.is_empty())
 3120                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3121                {
 3122                    return Ok(false);
 3123                }
 3124            }
 3125            Ok(true)
 3126        })
 3127    }
 3128
 3129    pub fn open_workspace_for_paths(
 3130        &mut self,
 3131        replace_current_window: bool,
 3132        paths: Vec<PathBuf>,
 3133        window: &mut Window,
 3134        cx: &mut Context<Self>,
 3135    ) -> Task<Result<Entity<Workspace>>> {
 3136        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 3137        let is_remote = self.project.read(cx).is_via_collab();
 3138        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3139        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3140
 3141        let window_to_replace = if replace_current_window {
 3142            window_handle
 3143        } else if is_remote || has_worktree || has_dirty_items {
 3144            None
 3145        } else {
 3146            window_handle
 3147        };
 3148        let app_state = self.app_state.clone();
 3149
 3150        cx.spawn(async move |_, cx| {
 3151            let OpenResult { workspace, .. } = cx
 3152                .update(|cx| {
 3153                    open_paths(
 3154                        &paths,
 3155                        app_state,
 3156                        OpenOptions {
 3157                            replace_window: window_to_replace,
 3158                            ..Default::default()
 3159                        },
 3160                        cx,
 3161                    )
 3162                })
 3163                .await?;
 3164            Ok(workspace)
 3165        })
 3166    }
 3167
 3168    #[allow(clippy::type_complexity)]
 3169    pub fn open_paths(
 3170        &mut self,
 3171        mut abs_paths: Vec<PathBuf>,
 3172        options: OpenOptions,
 3173        pane: Option<WeakEntity<Pane>>,
 3174        window: &mut Window,
 3175        cx: &mut Context<Self>,
 3176    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3177        let fs = self.app_state.fs.clone();
 3178
 3179        let caller_ordered_abs_paths = abs_paths.clone();
 3180
 3181        // Sort the paths to ensure we add worktrees for parents before their children.
 3182        abs_paths.sort_unstable();
 3183        cx.spawn_in(window, async move |this, cx| {
 3184            let mut tasks = Vec::with_capacity(abs_paths.len());
 3185
 3186            for abs_path in &abs_paths {
 3187                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3188                    OpenVisible::All => Some(true),
 3189                    OpenVisible::None => Some(false),
 3190                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3191                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3192                        Some(None) => Some(true),
 3193                        None => None,
 3194                    },
 3195                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3196                        Some(Some(metadata)) => Some(metadata.is_dir),
 3197                        Some(None) => Some(false),
 3198                        None => None,
 3199                    },
 3200                };
 3201                let project_path = match visible {
 3202                    Some(visible) => match this
 3203                        .update(cx, |this, cx| {
 3204                            Workspace::project_path_for_path(
 3205                                this.project.clone(),
 3206                                abs_path,
 3207                                visible,
 3208                                cx,
 3209                            )
 3210                        })
 3211                        .log_err()
 3212                    {
 3213                        Some(project_path) => project_path.await.log_err(),
 3214                        None => None,
 3215                    },
 3216                    None => None,
 3217                };
 3218
 3219                let this = this.clone();
 3220                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3221                let fs = fs.clone();
 3222                let pane = pane.clone();
 3223                let task = cx.spawn(async move |cx| {
 3224                    let (_worktree, project_path) = project_path?;
 3225                    if fs.is_dir(&abs_path).await {
 3226                        // Opening a directory should not race to update the active entry.
 3227                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3228                        None
 3229                    } else {
 3230                        Some(
 3231                            this.update_in(cx, |this, window, cx| {
 3232                                this.open_path(
 3233                                    project_path,
 3234                                    pane,
 3235                                    options.focus.unwrap_or(true),
 3236                                    window,
 3237                                    cx,
 3238                                )
 3239                            })
 3240                            .ok()?
 3241                            .await,
 3242                        )
 3243                    }
 3244                });
 3245                tasks.push(task);
 3246            }
 3247
 3248            let results = futures::future::join_all(tasks).await;
 3249
 3250            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3251            let mut winner: Option<(PathBuf, bool)> = None;
 3252            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3253                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3254                    if !metadata.is_dir {
 3255                        winner = Some((abs_path, false));
 3256                        break;
 3257                    }
 3258                    if winner.is_none() {
 3259                        winner = Some((abs_path, true));
 3260                    }
 3261                } else if winner.is_none() {
 3262                    winner = Some((abs_path, false));
 3263                }
 3264            }
 3265
 3266            // Compute the winner entry id on the foreground thread and emit once, after all
 3267            // paths finish opening. This avoids races between concurrently-opening paths
 3268            // (directories in particular) and makes the resulting project panel selection
 3269            // deterministic.
 3270            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3271                'emit_winner: {
 3272                    let winner_abs_path: Arc<Path> =
 3273                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3274
 3275                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3276                        OpenVisible::All => true,
 3277                        OpenVisible::None => false,
 3278                        OpenVisible::OnlyFiles => !winner_is_dir,
 3279                        OpenVisible::OnlyDirectories => winner_is_dir,
 3280                    };
 3281
 3282                    let Some(worktree_task) = this
 3283                        .update(cx, |workspace, cx| {
 3284                            workspace.project.update(cx, |project, cx| {
 3285                                project.find_or_create_worktree(
 3286                                    winner_abs_path.as_ref(),
 3287                                    visible,
 3288                                    cx,
 3289                                )
 3290                            })
 3291                        })
 3292                        .ok()
 3293                    else {
 3294                        break 'emit_winner;
 3295                    };
 3296
 3297                    let Ok((worktree, _)) = worktree_task.await else {
 3298                        break 'emit_winner;
 3299                    };
 3300
 3301                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3302                        let worktree = worktree.read(cx);
 3303                        let worktree_abs_path = worktree.abs_path();
 3304                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3305                            worktree.root_entry()
 3306                        } else {
 3307                            winner_abs_path
 3308                                .strip_prefix(worktree_abs_path.as_ref())
 3309                                .ok()
 3310                                .and_then(|relative_path| {
 3311                                    let relative_path =
 3312                                        RelPath::new(relative_path, PathStyle::local())
 3313                                            .log_err()?;
 3314                                    worktree.entry_for_path(&relative_path)
 3315                                })
 3316                        }?;
 3317                        Some(entry.id)
 3318                    }) else {
 3319                        break 'emit_winner;
 3320                    };
 3321
 3322                    this.update(cx, |workspace, cx| {
 3323                        workspace.project.update(cx, |_, cx| {
 3324                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3325                        });
 3326                    })
 3327                    .ok();
 3328                }
 3329            }
 3330
 3331            results
 3332        })
 3333    }
 3334
 3335    pub fn open_resolved_path(
 3336        &mut self,
 3337        path: ResolvedPath,
 3338        window: &mut Window,
 3339        cx: &mut Context<Self>,
 3340    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3341        match path {
 3342            ResolvedPath::ProjectPath { project_path, .. } => {
 3343                self.open_path(project_path, None, true, window, cx)
 3344            }
 3345            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3346                PathBuf::from(path),
 3347                OpenOptions {
 3348                    visible: Some(OpenVisible::None),
 3349                    ..Default::default()
 3350                },
 3351                window,
 3352                cx,
 3353            ),
 3354        }
 3355    }
 3356
 3357    pub fn absolute_path_of_worktree(
 3358        &self,
 3359        worktree_id: WorktreeId,
 3360        cx: &mut Context<Self>,
 3361    ) -> Option<PathBuf> {
 3362        self.project
 3363            .read(cx)
 3364            .worktree_for_id(worktree_id, cx)
 3365            // TODO: use `abs_path` or `root_dir`
 3366            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3367    }
 3368
 3369    fn add_folder_to_project(
 3370        &mut self,
 3371        _: &AddFolderToProject,
 3372        window: &mut Window,
 3373        cx: &mut Context<Self>,
 3374    ) {
 3375        let project = self.project.read(cx);
 3376        if project.is_via_collab() {
 3377            self.show_error(
 3378                &anyhow!("You cannot add folders to someone else's project"),
 3379                cx,
 3380            );
 3381            return;
 3382        }
 3383        let paths = self.prompt_for_open_path(
 3384            PathPromptOptions {
 3385                files: false,
 3386                directories: true,
 3387                multiple: true,
 3388                prompt: None,
 3389            },
 3390            DirectoryLister::Project(self.project.clone()),
 3391            window,
 3392            cx,
 3393        );
 3394        cx.spawn_in(window, async move |this, cx| {
 3395            if let Some(paths) = paths.await.log_err().flatten() {
 3396                let results = this
 3397                    .update_in(cx, |this, window, cx| {
 3398                        this.open_paths(
 3399                            paths,
 3400                            OpenOptions {
 3401                                visible: Some(OpenVisible::All),
 3402                                ..Default::default()
 3403                            },
 3404                            None,
 3405                            window,
 3406                            cx,
 3407                        )
 3408                    })?
 3409                    .await;
 3410                for result in results.into_iter().flatten() {
 3411                    result.log_err();
 3412                }
 3413            }
 3414            anyhow::Ok(())
 3415        })
 3416        .detach_and_log_err(cx);
 3417    }
 3418
 3419    pub fn project_path_for_path(
 3420        project: Entity<Project>,
 3421        abs_path: &Path,
 3422        visible: bool,
 3423        cx: &mut App,
 3424    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3425        let entry = project.update(cx, |project, cx| {
 3426            project.find_or_create_worktree(abs_path, visible, cx)
 3427        });
 3428        cx.spawn(async move |cx| {
 3429            let (worktree, path) = entry.await?;
 3430            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3431            Ok((worktree, ProjectPath { worktree_id, path }))
 3432        })
 3433    }
 3434
 3435    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3436        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3437    }
 3438
 3439    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3440        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3441    }
 3442
 3443    pub fn items_of_type<'a, T: Item>(
 3444        &'a self,
 3445        cx: &'a App,
 3446    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3447        self.panes
 3448            .iter()
 3449            .flat_map(|pane| pane.read(cx).items_of_type())
 3450    }
 3451
 3452    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3453        self.active_pane().read(cx).active_item()
 3454    }
 3455
 3456    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3457        let item = self.active_item(cx)?;
 3458        item.to_any_view().downcast::<I>().ok()
 3459    }
 3460
 3461    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3462        self.active_item(cx).and_then(|item| item.project_path(cx))
 3463    }
 3464
 3465    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3466        self.recent_navigation_history_iter(cx)
 3467            .filter_map(|(path, abs_path)| {
 3468                let worktree = self
 3469                    .project
 3470                    .read(cx)
 3471                    .worktree_for_id(path.worktree_id, cx)?;
 3472                if worktree.read(cx).is_visible() {
 3473                    abs_path
 3474                } else {
 3475                    None
 3476                }
 3477            })
 3478            .next()
 3479    }
 3480
 3481    pub fn save_active_item(
 3482        &mut self,
 3483        save_intent: SaveIntent,
 3484        window: &mut Window,
 3485        cx: &mut App,
 3486    ) -> Task<Result<()>> {
 3487        let project = self.project.clone();
 3488        let pane = self.active_pane();
 3489        let item = pane.read(cx).active_item();
 3490        let pane = pane.downgrade();
 3491
 3492        window.spawn(cx, async move |cx| {
 3493            if let Some(item) = item {
 3494                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3495                    .await
 3496                    .map(|_| ())
 3497            } else {
 3498                Ok(())
 3499            }
 3500        })
 3501    }
 3502
 3503    pub fn close_inactive_items_and_panes(
 3504        &mut self,
 3505        action: &CloseInactiveTabsAndPanes,
 3506        window: &mut Window,
 3507        cx: &mut Context<Self>,
 3508    ) {
 3509        if let Some(task) = self.close_all_internal(
 3510            true,
 3511            action.save_intent.unwrap_or(SaveIntent::Close),
 3512            window,
 3513            cx,
 3514        ) {
 3515            task.detach_and_log_err(cx)
 3516        }
 3517    }
 3518
 3519    pub fn close_all_items_and_panes(
 3520        &mut self,
 3521        action: &CloseAllItemsAndPanes,
 3522        window: &mut Window,
 3523        cx: &mut Context<Self>,
 3524    ) {
 3525        if let Some(task) = self.close_all_internal(
 3526            false,
 3527            action.save_intent.unwrap_or(SaveIntent::Close),
 3528            window,
 3529            cx,
 3530        ) {
 3531            task.detach_and_log_err(cx)
 3532        }
 3533    }
 3534
 3535    /// Closes the active item across all panes.
 3536    pub fn close_item_in_all_panes(
 3537        &mut self,
 3538        action: &CloseItemInAllPanes,
 3539        window: &mut Window,
 3540        cx: &mut Context<Self>,
 3541    ) {
 3542        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3543            return;
 3544        };
 3545
 3546        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3547        let close_pinned = action.close_pinned;
 3548
 3549        if let Some(project_path) = active_item.project_path(cx) {
 3550            self.close_items_with_project_path(
 3551                &project_path,
 3552                save_intent,
 3553                close_pinned,
 3554                window,
 3555                cx,
 3556            );
 3557        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3558            let item_id = active_item.item_id();
 3559            self.active_pane().update(cx, |pane, cx| {
 3560                pane.close_item_by_id(item_id, save_intent, window, cx)
 3561                    .detach_and_log_err(cx);
 3562            });
 3563        }
 3564    }
 3565
 3566    /// Closes all items with the given project path across all panes.
 3567    pub fn close_items_with_project_path(
 3568        &mut self,
 3569        project_path: &ProjectPath,
 3570        save_intent: SaveIntent,
 3571        close_pinned: bool,
 3572        window: &mut Window,
 3573        cx: &mut Context<Self>,
 3574    ) {
 3575        let panes = self.panes().to_vec();
 3576        for pane in panes {
 3577            pane.update(cx, |pane, cx| {
 3578                pane.close_items_for_project_path(
 3579                    project_path,
 3580                    save_intent,
 3581                    close_pinned,
 3582                    window,
 3583                    cx,
 3584                )
 3585                .detach_and_log_err(cx);
 3586            });
 3587        }
 3588    }
 3589
 3590    fn close_all_internal(
 3591        &mut self,
 3592        retain_active_pane: bool,
 3593        save_intent: SaveIntent,
 3594        window: &mut Window,
 3595        cx: &mut Context<Self>,
 3596    ) -> Option<Task<Result<()>>> {
 3597        let current_pane = self.active_pane();
 3598
 3599        let mut tasks = Vec::new();
 3600
 3601        if retain_active_pane {
 3602            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3603                pane.close_other_items(
 3604                    &CloseOtherItems {
 3605                        save_intent: None,
 3606                        close_pinned: false,
 3607                    },
 3608                    None,
 3609                    window,
 3610                    cx,
 3611                )
 3612            });
 3613
 3614            tasks.push(current_pane_close);
 3615        }
 3616
 3617        for pane in self.panes() {
 3618            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3619                continue;
 3620            }
 3621
 3622            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3623                pane.close_all_items(
 3624                    &CloseAllItems {
 3625                        save_intent: Some(save_intent),
 3626                        close_pinned: false,
 3627                    },
 3628                    window,
 3629                    cx,
 3630                )
 3631            });
 3632
 3633            tasks.push(close_pane_items)
 3634        }
 3635
 3636        if tasks.is_empty() {
 3637            None
 3638        } else {
 3639            Some(cx.spawn_in(window, async move |_, _| {
 3640                for task in tasks {
 3641                    task.await?
 3642                }
 3643                Ok(())
 3644            }))
 3645        }
 3646    }
 3647
 3648    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3649        self.dock_at_position(position).read(cx).is_open()
 3650    }
 3651
 3652    pub fn toggle_dock(
 3653        &mut self,
 3654        dock_side: DockPosition,
 3655        window: &mut Window,
 3656        cx: &mut Context<Self>,
 3657    ) {
 3658        let mut focus_center = false;
 3659        let mut reveal_dock = false;
 3660
 3661        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3662        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3663
 3664        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3665            telemetry::event!(
 3666                "Panel Button Clicked",
 3667                name = panel.persistent_name(),
 3668                toggle_state = !was_visible
 3669            );
 3670        }
 3671        if was_visible {
 3672            self.save_open_dock_positions(cx);
 3673        }
 3674
 3675        let dock = self.dock_at_position(dock_side);
 3676        dock.update(cx, |dock, cx| {
 3677            dock.set_open(!was_visible, window, cx);
 3678
 3679            if dock.active_panel().is_none() {
 3680                let Some(panel_ix) = dock
 3681                    .first_enabled_panel_idx(cx)
 3682                    .log_with_level(log::Level::Info)
 3683                else {
 3684                    return;
 3685                };
 3686                dock.activate_panel(panel_ix, window, cx);
 3687            }
 3688
 3689            if let Some(active_panel) = dock.active_panel() {
 3690                if was_visible {
 3691                    if active_panel
 3692                        .panel_focus_handle(cx)
 3693                        .contains_focused(window, cx)
 3694                    {
 3695                        focus_center = true;
 3696                    }
 3697                } else {
 3698                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3699                    window.focus(focus_handle, cx);
 3700                    reveal_dock = true;
 3701                }
 3702            }
 3703        });
 3704
 3705        if reveal_dock {
 3706            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3707        }
 3708
 3709        if focus_center {
 3710            self.active_pane
 3711                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3712        }
 3713
 3714        cx.notify();
 3715        self.serialize_workspace(window, cx);
 3716    }
 3717
 3718    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3719        self.all_docks().into_iter().find(|&dock| {
 3720            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3721        })
 3722    }
 3723
 3724    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3725        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3726            self.save_open_dock_positions(cx);
 3727            dock.update(cx, |dock, cx| {
 3728                dock.set_open(false, window, cx);
 3729            });
 3730            return true;
 3731        }
 3732        false
 3733    }
 3734
 3735    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3736        self.save_open_dock_positions(cx);
 3737        for dock in self.all_docks() {
 3738            dock.update(cx, |dock, cx| {
 3739                dock.set_open(false, window, cx);
 3740            });
 3741        }
 3742
 3743        cx.focus_self(window);
 3744        cx.notify();
 3745        self.serialize_workspace(window, cx);
 3746    }
 3747
 3748    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3749        self.all_docks()
 3750            .into_iter()
 3751            .filter_map(|dock| {
 3752                let dock_ref = dock.read(cx);
 3753                if dock_ref.is_open() {
 3754                    Some(dock_ref.position())
 3755                } else {
 3756                    None
 3757                }
 3758            })
 3759            .collect()
 3760    }
 3761
 3762    /// Saves the positions of currently open docks.
 3763    ///
 3764    /// Updates `last_open_dock_positions` with positions of all currently open
 3765    /// docks, to later be restored by the 'Toggle All Docks' action.
 3766    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3767        let open_dock_positions = self.get_open_dock_positions(cx);
 3768        if !open_dock_positions.is_empty() {
 3769            self.last_open_dock_positions = open_dock_positions;
 3770        }
 3771    }
 3772
 3773    /// Toggles all docks between open and closed states.
 3774    ///
 3775    /// If any docks are open, closes all and remembers their positions. If all
 3776    /// docks are closed, restores the last remembered dock configuration.
 3777    fn toggle_all_docks(
 3778        &mut self,
 3779        _: &ToggleAllDocks,
 3780        window: &mut Window,
 3781        cx: &mut Context<Self>,
 3782    ) {
 3783        let open_dock_positions = self.get_open_dock_positions(cx);
 3784
 3785        if !open_dock_positions.is_empty() {
 3786            self.close_all_docks(window, cx);
 3787        } else if !self.last_open_dock_positions.is_empty() {
 3788            self.restore_last_open_docks(window, cx);
 3789        }
 3790    }
 3791
 3792    /// Reopens docks from the most recently remembered configuration.
 3793    ///
 3794    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3795    /// and clears the stored positions.
 3796    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3797        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3798
 3799        for position in positions_to_open {
 3800            let dock = self.dock_at_position(position);
 3801            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3802        }
 3803
 3804        cx.focus_self(window);
 3805        cx.notify();
 3806        self.serialize_workspace(window, cx);
 3807    }
 3808
 3809    /// Transfer focus to the panel of the given type.
 3810    pub fn focus_panel<T: Panel>(
 3811        &mut self,
 3812        window: &mut Window,
 3813        cx: &mut Context<Self>,
 3814    ) -> Option<Entity<T>> {
 3815        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 3816        panel.to_any().downcast().ok()
 3817    }
 3818
 3819    /// Focus the panel of the given type if it isn't already focused. If it is
 3820    /// already focused, then transfer focus back to the workspace center.
 3821    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 3822    /// panel when transferring focus back to the center.
 3823    pub fn toggle_panel_focus<T: Panel>(
 3824        &mut self,
 3825        window: &mut Window,
 3826        cx: &mut Context<Self>,
 3827    ) -> bool {
 3828        let mut did_focus_panel = false;
 3829        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 3830            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3831            did_focus_panel
 3832        });
 3833
 3834        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 3835            self.close_panel::<T>(window, cx);
 3836        }
 3837
 3838        telemetry::event!(
 3839            "Panel Button Clicked",
 3840            name = T::persistent_name(),
 3841            toggle_state = did_focus_panel
 3842        );
 3843
 3844        did_focus_panel
 3845    }
 3846
 3847    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3848        if let Some(item) = self.active_item(cx) {
 3849            item.item_focus_handle(cx).focus(window, cx);
 3850        } else {
 3851            log::error!("Could not find a focus target when switching focus to the center panes",);
 3852        }
 3853    }
 3854
 3855    pub fn activate_panel_for_proto_id(
 3856        &mut self,
 3857        panel_id: PanelId,
 3858        window: &mut Window,
 3859        cx: &mut Context<Self>,
 3860    ) -> Option<Arc<dyn PanelHandle>> {
 3861        let mut panel = None;
 3862        for dock in self.all_docks() {
 3863            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3864                panel = dock.update(cx, |dock, cx| {
 3865                    dock.activate_panel(panel_index, window, cx);
 3866                    dock.set_open(true, window, cx);
 3867                    dock.active_panel().cloned()
 3868                });
 3869                break;
 3870            }
 3871        }
 3872
 3873        if panel.is_some() {
 3874            cx.notify();
 3875            self.serialize_workspace(window, cx);
 3876        }
 3877
 3878        panel
 3879    }
 3880
 3881    /// Focus or unfocus the given panel type, depending on the given callback.
 3882    fn focus_or_unfocus_panel<T: Panel>(
 3883        &mut self,
 3884        window: &mut Window,
 3885        cx: &mut Context<Self>,
 3886        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3887    ) -> Option<Arc<dyn PanelHandle>> {
 3888        let mut result_panel = None;
 3889        let mut serialize = false;
 3890        for dock in self.all_docks() {
 3891            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3892                let mut focus_center = false;
 3893                let panel = dock.update(cx, |dock, cx| {
 3894                    dock.activate_panel(panel_index, window, cx);
 3895
 3896                    let panel = dock.active_panel().cloned();
 3897                    if let Some(panel) = panel.as_ref() {
 3898                        if should_focus(&**panel, window, cx) {
 3899                            dock.set_open(true, window, cx);
 3900                            panel.panel_focus_handle(cx).focus(window, cx);
 3901                        } else {
 3902                            focus_center = true;
 3903                        }
 3904                    }
 3905                    panel
 3906                });
 3907
 3908                if focus_center {
 3909                    self.active_pane
 3910                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3911                }
 3912
 3913                result_panel = panel;
 3914                serialize = true;
 3915                break;
 3916            }
 3917        }
 3918
 3919        if serialize {
 3920            self.serialize_workspace(window, cx);
 3921        }
 3922
 3923        cx.notify();
 3924        result_panel
 3925    }
 3926
 3927    /// Open the panel of the given type
 3928    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3929        for dock in self.all_docks() {
 3930            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3931                dock.update(cx, |dock, cx| {
 3932                    dock.activate_panel(panel_index, window, cx);
 3933                    dock.set_open(true, window, cx);
 3934                });
 3935            }
 3936        }
 3937    }
 3938
 3939    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3940        for dock in self.all_docks().iter() {
 3941            dock.update(cx, |dock, cx| {
 3942                if dock.panel::<T>().is_some() {
 3943                    dock.set_open(false, window, cx)
 3944                }
 3945            })
 3946        }
 3947    }
 3948
 3949    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3950        self.all_docks()
 3951            .iter()
 3952            .find_map(|dock| dock.read(cx).panel::<T>())
 3953    }
 3954
 3955    fn dismiss_zoomed_items_to_reveal(
 3956        &mut self,
 3957        dock_to_reveal: Option<DockPosition>,
 3958        window: &mut Window,
 3959        cx: &mut Context<Self>,
 3960    ) {
 3961        // If a center pane is zoomed, unzoom it.
 3962        for pane in &self.panes {
 3963            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3964                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3965            }
 3966        }
 3967
 3968        // If another dock is zoomed, hide it.
 3969        let mut focus_center = false;
 3970        for dock in self.all_docks() {
 3971            dock.update(cx, |dock, cx| {
 3972                if Some(dock.position()) != dock_to_reveal
 3973                    && let Some(panel) = dock.active_panel()
 3974                    && panel.is_zoomed(window, cx)
 3975                {
 3976                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3977                    dock.set_open(false, window, cx);
 3978                }
 3979            });
 3980        }
 3981
 3982        if focus_center {
 3983            self.active_pane
 3984                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3985        }
 3986
 3987        if self.zoomed_position != dock_to_reveal {
 3988            self.zoomed = None;
 3989            self.zoomed_position = None;
 3990            cx.emit(Event::ZoomChanged);
 3991        }
 3992
 3993        cx.notify();
 3994    }
 3995
 3996    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3997        let pane = cx.new(|cx| {
 3998            let mut pane = Pane::new(
 3999                self.weak_handle(),
 4000                self.project.clone(),
 4001                self.pane_history_timestamp.clone(),
 4002                None,
 4003                NewFile.boxed_clone(),
 4004                true,
 4005                window,
 4006                cx,
 4007            );
 4008            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4009            pane
 4010        });
 4011        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4012            .detach();
 4013        self.panes.push(pane.clone());
 4014
 4015        window.focus(&pane.focus_handle(cx), cx);
 4016
 4017        cx.emit(Event::PaneAdded(pane.clone()));
 4018        pane
 4019    }
 4020
 4021    pub fn add_item_to_center(
 4022        &mut self,
 4023        item: Box<dyn ItemHandle>,
 4024        window: &mut Window,
 4025        cx: &mut Context<Self>,
 4026    ) -> bool {
 4027        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4028            if let Some(center_pane) = center_pane.upgrade() {
 4029                center_pane.update(cx, |pane, cx| {
 4030                    pane.add_item(item, true, true, None, window, cx)
 4031                });
 4032                true
 4033            } else {
 4034                false
 4035            }
 4036        } else {
 4037            false
 4038        }
 4039    }
 4040
 4041    pub fn add_item_to_active_pane(
 4042        &mut self,
 4043        item: Box<dyn ItemHandle>,
 4044        destination_index: Option<usize>,
 4045        focus_item: bool,
 4046        window: &mut Window,
 4047        cx: &mut App,
 4048    ) {
 4049        self.add_item(
 4050            self.active_pane.clone(),
 4051            item,
 4052            destination_index,
 4053            false,
 4054            focus_item,
 4055            window,
 4056            cx,
 4057        )
 4058    }
 4059
 4060    pub fn add_item(
 4061        &mut self,
 4062        pane: Entity<Pane>,
 4063        item: Box<dyn ItemHandle>,
 4064        destination_index: Option<usize>,
 4065        activate_pane: bool,
 4066        focus_item: bool,
 4067        window: &mut Window,
 4068        cx: &mut App,
 4069    ) {
 4070        pane.update(cx, |pane, cx| {
 4071            pane.add_item(
 4072                item,
 4073                activate_pane,
 4074                focus_item,
 4075                destination_index,
 4076                window,
 4077                cx,
 4078            )
 4079        });
 4080    }
 4081
 4082    pub fn split_item(
 4083        &mut self,
 4084        split_direction: SplitDirection,
 4085        item: Box<dyn ItemHandle>,
 4086        window: &mut Window,
 4087        cx: &mut Context<Self>,
 4088    ) {
 4089        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4090        self.add_item(new_pane, item, None, true, true, window, cx);
 4091    }
 4092
 4093    pub fn open_abs_path(
 4094        &mut self,
 4095        abs_path: PathBuf,
 4096        options: OpenOptions,
 4097        window: &mut Window,
 4098        cx: &mut Context<Self>,
 4099    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4100        cx.spawn_in(window, async move |workspace, cx| {
 4101            let open_paths_task_result = workspace
 4102                .update_in(cx, |workspace, window, cx| {
 4103                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4104                })
 4105                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4106                .await;
 4107            anyhow::ensure!(
 4108                open_paths_task_result.len() == 1,
 4109                "open abs path {abs_path:?} task returned incorrect number of results"
 4110            );
 4111            match open_paths_task_result
 4112                .into_iter()
 4113                .next()
 4114                .expect("ensured single task result")
 4115            {
 4116                Some(open_result) => {
 4117                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4118                }
 4119                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4120            }
 4121        })
 4122    }
 4123
 4124    pub fn split_abs_path(
 4125        &mut self,
 4126        abs_path: PathBuf,
 4127        visible: bool,
 4128        window: &mut Window,
 4129        cx: &mut Context<Self>,
 4130    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4131        let project_path_task =
 4132            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4133        cx.spawn_in(window, async move |this, cx| {
 4134            let (_, path) = project_path_task.await?;
 4135            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4136                .await
 4137        })
 4138    }
 4139
 4140    pub fn open_path(
 4141        &mut self,
 4142        path: impl Into<ProjectPath>,
 4143        pane: Option<WeakEntity<Pane>>,
 4144        focus_item: bool,
 4145        window: &mut Window,
 4146        cx: &mut App,
 4147    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4148        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4149    }
 4150
 4151    pub fn open_path_preview(
 4152        &mut self,
 4153        path: impl Into<ProjectPath>,
 4154        pane: Option<WeakEntity<Pane>>,
 4155        focus_item: bool,
 4156        allow_preview: bool,
 4157        activate: bool,
 4158        window: &mut Window,
 4159        cx: &mut App,
 4160    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4161        let pane = pane.unwrap_or_else(|| {
 4162            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4163                self.panes
 4164                    .first()
 4165                    .expect("There must be an active pane")
 4166                    .downgrade()
 4167            })
 4168        });
 4169
 4170        let project_path = path.into();
 4171        let task = self.load_path(project_path.clone(), window, cx);
 4172        window.spawn(cx, async move |cx| {
 4173            let (project_entry_id, build_item) = task.await?;
 4174
 4175            pane.update_in(cx, |pane, window, cx| {
 4176                pane.open_item(
 4177                    project_entry_id,
 4178                    project_path,
 4179                    focus_item,
 4180                    allow_preview,
 4181                    activate,
 4182                    None,
 4183                    window,
 4184                    cx,
 4185                    build_item,
 4186                )
 4187            })
 4188        })
 4189    }
 4190
 4191    pub fn split_path(
 4192        &mut self,
 4193        path: impl Into<ProjectPath>,
 4194        window: &mut Window,
 4195        cx: &mut Context<Self>,
 4196    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4197        self.split_path_preview(path, false, None, window, cx)
 4198    }
 4199
 4200    pub fn split_path_preview(
 4201        &mut self,
 4202        path: impl Into<ProjectPath>,
 4203        allow_preview: bool,
 4204        split_direction: Option<SplitDirection>,
 4205        window: &mut Window,
 4206        cx: &mut Context<Self>,
 4207    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4208        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4209            self.panes
 4210                .first()
 4211                .expect("There must be an active pane")
 4212                .downgrade()
 4213        });
 4214
 4215        if let Member::Pane(center_pane) = &self.center.root
 4216            && center_pane.read(cx).items_len() == 0
 4217        {
 4218            return self.open_path(path, Some(pane), true, window, cx);
 4219        }
 4220
 4221        let project_path = path.into();
 4222        let task = self.load_path(project_path.clone(), window, cx);
 4223        cx.spawn_in(window, async move |this, cx| {
 4224            let (project_entry_id, build_item) = task.await?;
 4225            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4226                let pane = pane.upgrade()?;
 4227                let new_pane = this.split_pane(
 4228                    pane,
 4229                    split_direction.unwrap_or(SplitDirection::Right),
 4230                    window,
 4231                    cx,
 4232                );
 4233                new_pane.update(cx, |new_pane, cx| {
 4234                    Some(new_pane.open_item(
 4235                        project_entry_id,
 4236                        project_path,
 4237                        true,
 4238                        allow_preview,
 4239                        true,
 4240                        None,
 4241                        window,
 4242                        cx,
 4243                        build_item,
 4244                    ))
 4245                })
 4246            })
 4247            .map(|option| option.context("pane was dropped"))?
 4248        })
 4249    }
 4250
 4251    fn load_path(
 4252        &mut self,
 4253        path: ProjectPath,
 4254        window: &mut Window,
 4255        cx: &mut App,
 4256    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4257        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4258        registry.open_path(self.project(), &path, window, cx)
 4259    }
 4260
 4261    pub fn find_project_item<T>(
 4262        &self,
 4263        pane: &Entity<Pane>,
 4264        project_item: &Entity<T::Item>,
 4265        cx: &App,
 4266    ) -> Option<Entity<T>>
 4267    where
 4268        T: ProjectItem,
 4269    {
 4270        use project::ProjectItem as _;
 4271        let project_item = project_item.read(cx);
 4272        let entry_id = project_item.entry_id(cx);
 4273        let project_path = project_item.project_path(cx);
 4274
 4275        let mut item = None;
 4276        if let Some(entry_id) = entry_id {
 4277            item = pane.read(cx).item_for_entry(entry_id, cx);
 4278        }
 4279        if item.is_none()
 4280            && let Some(project_path) = project_path
 4281        {
 4282            item = pane.read(cx).item_for_path(project_path, cx);
 4283        }
 4284
 4285        item.and_then(|item| item.downcast::<T>())
 4286    }
 4287
 4288    pub fn is_project_item_open<T>(
 4289        &self,
 4290        pane: &Entity<Pane>,
 4291        project_item: &Entity<T::Item>,
 4292        cx: &App,
 4293    ) -> bool
 4294    where
 4295        T: ProjectItem,
 4296    {
 4297        self.find_project_item::<T>(pane, project_item, cx)
 4298            .is_some()
 4299    }
 4300
 4301    pub fn open_project_item<T>(
 4302        &mut self,
 4303        pane: Entity<Pane>,
 4304        project_item: Entity<T::Item>,
 4305        activate_pane: bool,
 4306        focus_item: bool,
 4307        keep_old_preview: bool,
 4308        allow_new_preview: bool,
 4309        window: &mut Window,
 4310        cx: &mut Context<Self>,
 4311    ) -> Entity<T>
 4312    where
 4313        T: ProjectItem,
 4314    {
 4315        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4316
 4317        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4318            if !keep_old_preview
 4319                && let Some(old_id) = old_item_id
 4320                && old_id != item.item_id()
 4321            {
 4322                // switching to a different item, so unpreview old active item
 4323                pane.update(cx, |pane, _| {
 4324                    pane.unpreview_item_if_preview(old_id);
 4325                });
 4326            }
 4327
 4328            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4329            if !allow_new_preview {
 4330                pane.update(cx, |pane, _| {
 4331                    pane.unpreview_item_if_preview(item.item_id());
 4332                });
 4333            }
 4334            return item;
 4335        }
 4336
 4337        let item = pane.update(cx, |pane, cx| {
 4338            cx.new(|cx| {
 4339                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4340            })
 4341        });
 4342        let mut destination_index = None;
 4343        pane.update(cx, |pane, cx| {
 4344            if !keep_old_preview && let Some(old_id) = old_item_id {
 4345                pane.unpreview_item_if_preview(old_id);
 4346            }
 4347            if allow_new_preview {
 4348                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4349            }
 4350        });
 4351
 4352        self.add_item(
 4353            pane,
 4354            Box::new(item.clone()),
 4355            destination_index,
 4356            activate_pane,
 4357            focus_item,
 4358            window,
 4359            cx,
 4360        );
 4361        item
 4362    }
 4363
 4364    pub fn open_shared_screen(
 4365        &mut self,
 4366        peer_id: PeerId,
 4367        window: &mut Window,
 4368        cx: &mut Context<Self>,
 4369    ) {
 4370        if let Some(shared_screen) =
 4371            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4372        {
 4373            self.active_pane.update(cx, |pane, cx| {
 4374                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4375            });
 4376        }
 4377    }
 4378
 4379    pub fn activate_item(
 4380        &mut self,
 4381        item: &dyn ItemHandle,
 4382        activate_pane: bool,
 4383        focus_item: bool,
 4384        window: &mut Window,
 4385        cx: &mut App,
 4386    ) -> bool {
 4387        let result = self.panes.iter().find_map(|pane| {
 4388            pane.read(cx)
 4389                .index_for_item(item)
 4390                .map(|ix| (pane.clone(), ix))
 4391        });
 4392        if let Some((pane, ix)) = result {
 4393            pane.update(cx, |pane, cx| {
 4394                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4395            });
 4396            true
 4397        } else {
 4398            false
 4399        }
 4400    }
 4401
 4402    fn activate_pane_at_index(
 4403        &mut self,
 4404        action: &ActivatePane,
 4405        window: &mut Window,
 4406        cx: &mut Context<Self>,
 4407    ) {
 4408        let panes = self.center.panes();
 4409        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4410            window.focus(&pane.focus_handle(cx), cx);
 4411        } else {
 4412            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4413                .detach();
 4414        }
 4415    }
 4416
 4417    fn move_item_to_pane_at_index(
 4418        &mut self,
 4419        action: &MoveItemToPane,
 4420        window: &mut Window,
 4421        cx: &mut Context<Self>,
 4422    ) {
 4423        let panes = self.center.panes();
 4424        let destination = match panes.get(action.destination) {
 4425            Some(&destination) => destination.clone(),
 4426            None => {
 4427                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4428                    return;
 4429                }
 4430                let direction = SplitDirection::Right;
 4431                let split_off_pane = self
 4432                    .find_pane_in_direction(direction, cx)
 4433                    .unwrap_or_else(|| self.active_pane.clone());
 4434                let new_pane = self.add_pane(window, cx);
 4435                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4436                new_pane
 4437            }
 4438        };
 4439
 4440        if action.clone {
 4441            if self
 4442                .active_pane
 4443                .read(cx)
 4444                .active_item()
 4445                .is_some_and(|item| item.can_split(cx))
 4446            {
 4447                clone_active_item(
 4448                    self.database_id(),
 4449                    &self.active_pane,
 4450                    &destination,
 4451                    action.focus,
 4452                    window,
 4453                    cx,
 4454                );
 4455                return;
 4456            }
 4457        }
 4458        move_active_item(
 4459            &self.active_pane,
 4460            &destination,
 4461            action.focus,
 4462            true,
 4463            window,
 4464            cx,
 4465        )
 4466    }
 4467
 4468    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4469        let panes = self.center.panes();
 4470        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4471            let next_ix = (ix + 1) % panes.len();
 4472            let next_pane = panes[next_ix].clone();
 4473            window.focus(&next_pane.focus_handle(cx), cx);
 4474        }
 4475    }
 4476
 4477    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4478        let panes = self.center.panes();
 4479        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4480            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4481            let prev_pane = panes[prev_ix].clone();
 4482            window.focus(&prev_pane.focus_handle(cx), cx);
 4483        }
 4484    }
 4485
 4486    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4487        let last_pane = self.center.last_pane();
 4488        window.focus(&last_pane.focus_handle(cx), cx);
 4489    }
 4490
 4491    pub fn activate_pane_in_direction(
 4492        &mut self,
 4493        direction: SplitDirection,
 4494        window: &mut Window,
 4495        cx: &mut App,
 4496    ) {
 4497        use ActivateInDirectionTarget as Target;
 4498        enum Origin {
 4499            Sidebar,
 4500            LeftDock,
 4501            RightDock,
 4502            BottomDock,
 4503            Center,
 4504        }
 4505
 4506        let origin: Origin = if self
 4507            .sidebar_focus_handle
 4508            .as_ref()
 4509            .is_some_and(|h| h.contains_focused(window, cx))
 4510        {
 4511            Origin::Sidebar
 4512        } else {
 4513            [
 4514                (&self.left_dock, Origin::LeftDock),
 4515                (&self.right_dock, Origin::RightDock),
 4516                (&self.bottom_dock, Origin::BottomDock),
 4517            ]
 4518            .into_iter()
 4519            .find_map(|(dock, origin)| {
 4520                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4521                    Some(origin)
 4522                } else {
 4523                    None
 4524                }
 4525            })
 4526            .unwrap_or(Origin::Center)
 4527        };
 4528
 4529        let get_last_active_pane = || {
 4530            let pane = self
 4531                .last_active_center_pane
 4532                .clone()
 4533                .unwrap_or_else(|| {
 4534                    self.panes
 4535                        .first()
 4536                        .expect("There must be an active pane")
 4537                        .downgrade()
 4538                })
 4539                .upgrade()?;
 4540            (pane.read(cx).items_len() != 0).then_some(pane)
 4541        };
 4542
 4543        let try_dock =
 4544            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4545
 4546        let sidebar_target = self
 4547            .sidebar_focus_handle
 4548            .as_ref()
 4549            .map(|h| Target::Sidebar(h.clone()));
 4550
 4551        let target = match (origin, direction) {
 4552            // From the sidebar, only Right navigates into the workspace.
 4553            (Origin::Sidebar, SplitDirection::Right) => try_dock(&self.left_dock)
 4554                .or_else(|| get_last_active_pane().map(Target::Pane))
 4555                .or_else(|| try_dock(&self.bottom_dock))
 4556                .or_else(|| try_dock(&self.right_dock)),
 4557
 4558            (Origin::Sidebar, _) => None,
 4559
 4560            // We're in the center, so we first try to go to a different pane,
 4561            // otherwise try to go to a dock.
 4562            (Origin::Center, direction) => {
 4563                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4564                    Some(Target::Pane(pane))
 4565                } else {
 4566                    match direction {
 4567                        SplitDirection::Up => None,
 4568                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4569                        SplitDirection::Left => try_dock(&self.left_dock).or(sidebar_target),
 4570                        SplitDirection::Right => try_dock(&self.right_dock),
 4571                    }
 4572                }
 4573            }
 4574
 4575            (Origin::LeftDock, SplitDirection::Right) => {
 4576                if let Some(last_active_pane) = get_last_active_pane() {
 4577                    Some(Target::Pane(last_active_pane))
 4578                } else {
 4579                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4580                }
 4581            }
 4582
 4583            (Origin::LeftDock, SplitDirection::Left) => sidebar_target,
 4584
 4585            (Origin::LeftDock, SplitDirection::Down)
 4586            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4587
 4588            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4589            (Origin::BottomDock, SplitDirection::Left) => {
 4590                try_dock(&self.left_dock).or(sidebar_target)
 4591            }
 4592            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4593
 4594            (Origin::RightDock, SplitDirection::Left) => {
 4595                if let Some(last_active_pane) = get_last_active_pane() {
 4596                    Some(Target::Pane(last_active_pane))
 4597                } else {
 4598                    try_dock(&self.bottom_dock)
 4599                        .or_else(|| try_dock(&self.left_dock))
 4600                        .or(sidebar_target)
 4601                }
 4602            }
 4603
 4604            _ => None,
 4605        };
 4606
 4607        match target {
 4608            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4609                let pane = pane.read(cx);
 4610                if let Some(item) = pane.active_item() {
 4611                    item.item_focus_handle(cx).focus(window, cx);
 4612                } else {
 4613                    log::error!(
 4614                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4615                    );
 4616                }
 4617            }
 4618            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4619                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4620                window.defer(cx, move |window, cx| {
 4621                    let dock = dock.read(cx);
 4622                    if let Some(panel) = dock.active_panel() {
 4623                        panel.panel_focus_handle(cx).focus(window, cx);
 4624                    } else {
 4625                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4626                    }
 4627                })
 4628            }
 4629            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4630                focus_handle.focus(window, cx);
 4631            }
 4632            None => {}
 4633        }
 4634    }
 4635
 4636    pub fn move_item_to_pane_in_direction(
 4637        &mut self,
 4638        action: &MoveItemToPaneInDirection,
 4639        window: &mut Window,
 4640        cx: &mut Context<Self>,
 4641    ) {
 4642        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4643            Some(destination) => destination,
 4644            None => {
 4645                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4646                    return;
 4647                }
 4648                let new_pane = self.add_pane(window, cx);
 4649                self.center
 4650                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4651                new_pane
 4652            }
 4653        };
 4654
 4655        if action.clone {
 4656            if self
 4657                .active_pane
 4658                .read(cx)
 4659                .active_item()
 4660                .is_some_and(|item| item.can_split(cx))
 4661            {
 4662                clone_active_item(
 4663                    self.database_id(),
 4664                    &self.active_pane,
 4665                    &destination,
 4666                    action.focus,
 4667                    window,
 4668                    cx,
 4669                );
 4670                return;
 4671            }
 4672        }
 4673        move_active_item(
 4674            &self.active_pane,
 4675            &destination,
 4676            action.focus,
 4677            true,
 4678            window,
 4679            cx,
 4680        );
 4681    }
 4682
 4683    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4684        self.center.bounding_box_for_pane(pane)
 4685    }
 4686
 4687    pub fn find_pane_in_direction(
 4688        &mut self,
 4689        direction: SplitDirection,
 4690        cx: &App,
 4691    ) -> Option<Entity<Pane>> {
 4692        self.center
 4693            .find_pane_in_direction(&self.active_pane, direction, cx)
 4694            .cloned()
 4695    }
 4696
 4697    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4698        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4699            self.center.swap(&self.active_pane, &to, cx);
 4700            cx.notify();
 4701        }
 4702    }
 4703
 4704    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4705        if self
 4706            .center
 4707            .move_to_border(&self.active_pane, direction, cx)
 4708            .unwrap()
 4709        {
 4710            cx.notify();
 4711        }
 4712    }
 4713
 4714    pub fn resize_pane(
 4715        &mut self,
 4716        axis: gpui::Axis,
 4717        amount: Pixels,
 4718        window: &mut Window,
 4719        cx: &mut Context<Self>,
 4720    ) {
 4721        let docks = self.all_docks();
 4722        let active_dock = docks
 4723            .into_iter()
 4724            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4725
 4726        if let Some(dock) = active_dock {
 4727            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4728                return;
 4729            };
 4730            match dock.read(cx).position() {
 4731                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4732                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4733                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4734            }
 4735        } else {
 4736            self.center
 4737                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4738        }
 4739        cx.notify();
 4740    }
 4741
 4742    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4743        self.center.reset_pane_sizes(cx);
 4744        cx.notify();
 4745    }
 4746
 4747    fn handle_pane_focused(
 4748        &mut self,
 4749        pane: Entity<Pane>,
 4750        window: &mut Window,
 4751        cx: &mut Context<Self>,
 4752    ) {
 4753        // This is explicitly hoisted out of the following check for pane identity as
 4754        // terminal panel panes are not registered as a center panes.
 4755        self.status_bar.update(cx, |status_bar, cx| {
 4756            status_bar.set_active_pane(&pane, window, cx);
 4757        });
 4758        if self.active_pane != pane {
 4759            self.set_active_pane(&pane, window, cx);
 4760        }
 4761
 4762        if self.last_active_center_pane.is_none() {
 4763            self.last_active_center_pane = Some(pane.downgrade());
 4764        }
 4765
 4766        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4767        // This prevents the dock from closing when focus events fire during window activation.
 4768        // We also preserve any dock whose active panel itself has focus — this covers
 4769        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4770        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4771            let dock_read = dock.read(cx);
 4772            if let Some(panel) = dock_read.active_panel() {
 4773                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4774                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4775                {
 4776                    return Some(dock_read.position());
 4777                }
 4778            }
 4779            None
 4780        });
 4781
 4782        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4783        if pane.read(cx).is_zoomed() {
 4784            self.zoomed = Some(pane.downgrade().into());
 4785        } else {
 4786            self.zoomed = None;
 4787        }
 4788        self.zoomed_position = None;
 4789        cx.emit(Event::ZoomChanged);
 4790        self.update_active_view_for_followers(window, cx);
 4791        pane.update(cx, |pane, _| {
 4792            pane.track_alternate_file_items();
 4793        });
 4794
 4795        cx.notify();
 4796    }
 4797
 4798    fn set_active_pane(
 4799        &mut self,
 4800        pane: &Entity<Pane>,
 4801        window: &mut Window,
 4802        cx: &mut Context<Self>,
 4803    ) {
 4804        self.active_pane = pane.clone();
 4805        self.active_item_path_changed(true, window, cx);
 4806        self.last_active_center_pane = Some(pane.downgrade());
 4807    }
 4808
 4809    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4810        self.update_active_view_for_followers(window, cx);
 4811    }
 4812
 4813    fn handle_pane_event(
 4814        &mut self,
 4815        pane: &Entity<Pane>,
 4816        event: &pane::Event,
 4817        window: &mut Window,
 4818        cx: &mut Context<Self>,
 4819    ) {
 4820        let mut serialize_workspace = true;
 4821        match event {
 4822            pane::Event::AddItem { item } => {
 4823                item.added_to_pane(self, pane.clone(), window, cx);
 4824                cx.emit(Event::ItemAdded {
 4825                    item: item.boxed_clone(),
 4826                });
 4827            }
 4828            pane::Event::Split { direction, mode } => {
 4829                match mode {
 4830                    SplitMode::ClonePane => {
 4831                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4832                            .detach();
 4833                    }
 4834                    SplitMode::EmptyPane => {
 4835                        self.split_pane(pane.clone(), *direction, window, cx);
 4836                    }
 4837                    SplitMode::MovePane => {
 4838                        self.split_and_move(pane.clone(), *direction, window, cx);
 4839                    }
 4840                };
 4841            }
 4842            pane::Event::JoinIntoNext => {
 4843                self.join_pane_into_next(pane.clone(), window, cx);
 4844            }
 4845            pane::Event::JoinAll => {
 4846                self.join_all_panes(window, cx);
 4847            }
 4848            pane::Event::Remove { focus_on_pane } => {
 4849                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4850            }
 4851            pane::Event::ActivateItem {
 4852                local,
 4853                focus_changed,
 4854            } => {
 4855                window.invalidate_character_coordinates();
 4856
 4857                pane.update(cx, |pane, _| {
 4858                    pane.track_alternate_file_items();
 4859                });
 4860                if *local {
 4861                    self.unfollow_in_pane(pane, window, cx);
 4862                }
 4863                serialize_workspace = *focus_changed || pane != self.active_pane();
 4864                if pane == self.active_pane() {
 4865                    self.active_item_path_changed(*focus_changed, window, cx);
 4866                    self.update_active_view_for_followers(window, cx);
 4867                } else if *local {
 4868                    self.set_active_pane(pane, window, cx);
 4869                }
 4870            }
 4871            pane::Event::UserSavedItem { item, save_intent } => {
 4872                cx.emit(Event::UserSavedItem {
 4873                    pane: pane.downgrade(),
 4874                    item: item.boxed_clone(),
 4875                    save_intent: *save_intent,
 4876                });
 4877                serialize_workspace = false;
 4878            }
 4879            pane::Event::ChangeItemTitle => {
 4880                if *pane == self.active_pane {
 4881                    self.active_item_path_changed(false, window, cx);
 4882                }
 4883                serialize_workspace = false;
 4884            }
 4885            pane::Event::RemovedItem { item } => {
 4886                cx.emit(Event::ActiveItemChanged);
 4887                self.update_window_edited(window, cx);
 4888                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4889                    && entry.get().entity_id() == pane.entity_id()
 4890                {
 4891                    entry.remove();
 4892                }
 4893                cx.emit(Event::ItemRemoved {
 4894                    item_id: item.item_id(),
 4895                });
 4896            }
 4897            pane::Event::Focus => {
 4898                window.invalidate_character_coordinates();
 4899                self.handle_pane_focused(pane.clone(), window, cx);
 4900            }
 4901            pane::Event::ZoomIn => {
 4902                if *pane == self.active_pane {
 4903                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4904                    if pane.read(cx).has_focus(window, cx) {
 4905                        self.zoomed = Some(pane.downgrade().into());
 4906                        self.zoomed_position = None;
 4907                        cx.emit(Event::ZoomChanged);
 4908                    }
 4909                    cx.notify();
 4910                }
 4911            }
 4912            pane::Event::ZoomOut => {
 4913                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4914                if self.zoomed_position.is_none() {
 4915                    self.zoomed = None;
 4916                    cx.emit(Event::ZoomChanged);
 4917                }
 4918                cx.notify();
 4919            }
 4920            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4921        }
 4922
 4923        if serialize_workspace {
 4924            self.serialize_workspace(window, cx);
 4925        }
 4926    }
 4927
 4928    pub fn unfollow_in_pane(
 4929        &mut self,
 4930        pane: &Entity<Pane>,
 4931        window: &mut Window,
 4932        cx: &mut Context<Workspace>,
 4933    ) -> Option<CollaboratorId> {
 4934        let leader_id = self.leader_for_pane(pane)?;
 4935        self.unfollow(leader_id, window, cx);
 4936        Some(leader_id)
 4937    }
 4938
 4939    pub fn split_pane(
 4940        &mut self,
 4941        pane_to_split: Entity<Pane>,
 4942        split_direction: SplitDirection,
 4943        window: &mut Window,
 4944        cx: &mut Context<Self>,
 4945    ) -> Entity<Pane> {
 4946        let new_pane = self.add_pane(window, cx);
 4947        self.center
 4948            .split(&pane_to_split, &new_pane, split_direction, cx);
 4949        cx.notify();
 4950        new_pane
 4951    }
 4952
 4953    pub fn split_and_move(
 4954        &mut self,
 4955        pane: Entity<Pane>,
 4956        direction: SplitDirection,
 4957        window: &mut Window,
 4958        cx: &mut Context<Self>,
 4959    ) {
 4960        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4961            return;
 4962        };
 4963        let new_pane = self.add_pane(window, cx);
 4964        new_pane.update(cx, |pane, cx| {
 4965            pane.add_item(item, true, true, None, window, cx)
 4966        });
 4967        self.center.split(&pane, &new_pane, direction, cx);
 4968        cx.notify();
 4969    }
 4970
 4971    pub fn split_and_clone(
 4972        &mut self,
 4973        pane: Entity<Pane>,
 4974        direction: SplitDirection,
 4975        window: &mut Window,
 4976        cx: &mut Context<Self>,
 4977    ) -> Task<Option<Entity<Pane>>> {
 4978        let Some(item) = pane.read(cx).active_item() else {
 4979            return Task::ready(None);
 4980        };
 4981        if !item.can_split(cx) {
 4982            return Task::ready(None);
 4983        }
 4984        let task = item.clone_on_split(self.database_id(), window, cx);
 4985        cx.spawn_in(window, async move |this, cx| {
 4986            if let Some(clone) = task.await {
 4987                this.update_in(cx, |this, window, cx| {
 4988                    let new_pane = this.add_pane(window, cx);
 4989                    let nav_history = pane.read(cx).fork_nav_history();
 4990                    new_pane.update(cx, |pane, cx| {
 4991                        pane.set_nav_history(nav_history, cx);
 4992                        pane.add_item(clone, true, true, None, window, cx)
 4993                    });
 4994                    this.center.split(&pane, &new_pane, direction, cx);
 4995                    cx.notify();
 4996                    new_pane
 4997                })
 4998                .ok()
 4999            } else {
 5000                None
 5001            }
 5002        })
 5003    }
 5004
 5005    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5006        let active_item = self.active_pane.read(cx).active_item();
 5007        for pane in &self.panes {
 5008            join_pane_into_active(&self.active_pane, pane, window, cx);
 5009        }
 5010        if let Some(active_item) = active_item {
 5011            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5012        }
 5013        cx.notify();
 5014    }
 5015
 5016    pub fn join_pane_into_next(
 5017        &mut self,
 5018        pane: Entity<Pane>,
 5019        window: &mut Window,
 5020        cx: &mut Context<Self>,
 5021    ) {
 5022        let next_pane = self
 5023            .find_pane_in_direction(SplitDirection::Right, cx)
 5024            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5025            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5026            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5027        let Some(next_pane) = next_pane else {
 5028            return;
 5029        };
 5030        move_all_items(&pane, &next_pane, window, cx);
 5031        cx.notify();
 5032    }
 5033
 5034    fn remove_pane(
 5035        &mut self,
 5036        pane: Entity<Pane>,
 5037        focus_on: Option<Entity<Pane>>,
 5038        window: &mut Window,
 5039        cx: &mut Context<Self>,
 5040    ) {
 5041        if self.center.remove(&pane, cx).unwrap() {
 5042            self.force_remove_pane(&pane, &focus_on, window, cx);
 5043            self.unfollow_in_pane(&pane, window, cx);
 5044            self.last_leaders_by_pane.remove(&pane.downgrade());
 5045            for removed_item in pane.read(cx).items() {
 5046                self.panes_by_item.remove(&removed_item.item_id());
 5047            }
 5048
 5049            cx.notify();
 5050        } else {
 5051            self.active_item_path_changed(true, window, cx);
 5052        }
 5053        cx.emit(Event::PaneRemoved);
 5054    }
 5055
 5056    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5057        &mut self.panes
 5058    }
 5059
 5060    pub fn panes(&self) -> &[Entity<Pane>] {
 5061        &self.panes
 5062    }
 5063
 5064    pub fn active_pane(&self) -> &Entity<Pane> {
 5065        &self.active_pane
 5066    }
 5067
 5068    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5069        for dock in self.all_docks() {
 5070            if dock.focus_handle(cx).contains_focused(window, cx)
 5071                && let Some(pane) = dock
 5072                    .read(cx)
 5073                    .active_panel()
 5074                    .and_then(|panel| panel.pane(cx))
 5075            {
 5076                return pane;
 5077            }
 5078        }
 5079        self.active_pane().clone()
 5080    }
 5081
 5082    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5083        self.find_pane_in_direction(SplitDirection::Right, cx)
 5084            .unwrap_or_else(|| {
 5085                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5086            })
 5087    }
 5088
 5089    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5090        self.pane_for_item_id(handle.item_id())
 5091    }
 5092
 5093    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5094        let weak_pane = self.panes_by_item.get(&item_id)?;
 5095        weak_pane.upgrade()
 5096    }
 5097
 5098    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5099        self.panes
 5100            .iter()
 5101            .find(|pane| pane.entity_id() == entity_id)
 5102            .cloned()
 5103    }
 5104
 5105    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5106        self.follower_states.retain(|leader_id, state| {
 5107            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5108                for item in state.items_by_leader_view_id.values() {
 5109                    item.view.set_leader_id(None, window, cx);
 5110                }
 5111                false
 5112            } else {
 5113                true
 5114            }
 5115        });
 5116        cx.notify();
 5117    }
 5118
 5119    pub fn start_following(
 5120        &mut self,
 5121        leader_id: impl Into<CollaboratorId>,
 5122        window: &mut Window,
 5123        cx: &mut Context<Self>,
 5124    ) -> Option<Task<Result<()>>> {
 5125        let leader_id = leader_id.into();
 5126        let pane = self.active_pane().clone();
 5127
 5128        self.last_leaders_by_pane
 5129            .insert(pane.downgrade(), leader_id);
 5130        self.unfollow(leader_id, window, cx);
 5131        self.unfollow_in_pane(&pane, window, cx);
 5132        self.follower_states.insert(
 5133            leader_id,
 5134            FollowerState {
 5135                center_pane: pane.clone(),
 5136                dock_pane: None,
 5137                active_view_id: None,
 5138                items_by_leader_view_id: Default::default(),
 5139            },
 5140        );
 5141        cx.notify();
 5142
 5143        match leader_id {
 5144            CollaboratorId::PeerId(leader_peer_id) => {
 5145                let room_id = self.active_call()?.room_id(cx)?;
 5146                let project_id = self.project.read(cx).remote_id();
 5147                let request = self.app_state.client.request(proto::Follow {
 5148                    room_id,
 5149                    project_id,
 5150                    leader_id: Some(leader_peer_id),
 5151                });
 5152
 5153                Some(cx.spawn_in(window, async move |this, cx| {
 5154                    let response = request.await?;
 5155                    this.update(cx, |this, _| {
 5156                        let state = this
 5157                            .follower_states
 5158                            .get_mut(&leader_id)
 5159                            .context("following interrupted")?;
 5160                        state.active_view_id = response
 5161                            .active_view
 5162                            .as_ref()
 5163                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5164                        anyhow::Ok(())
 5165                    })??;
 5166                    if let Some(view) = response.active_view {
 5167                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5168                    }
 5169                    this.update_in(cx, |this, window, cx| {
 5170                        this.leader_updated(leader_id, window, cx)
 5171                    })?;
 5172                    Ok(())
 5173                }))
 5174            }
 5175            CollaboratorId::Agent => {
 5176                self.leader_updated(leader_id, window, cx)?;
 5177                Some(Task::ready(Ok(())))
 5178            }
 5179        }
 5180    }
 5181
 5182    pub fn follow_next_collaborator(
 5183        &mut self,
 5184        _: &FollowNextCollaborator,
 5185        window: &mut Window,
 5186        cx: &mut Context<Self>,
 5187    ) {
 5188        let collaborators = self.project.read(cx).collaborators();
 5189        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5190            let mut collaborators = collaborators.keys().copied();
 5191            for peer_id in collaborators.by_ref() {
 5192                if CollaboratorId::PeerId(peer_id) == leader_id {
 5193                    break;
 5194                }
 5195            }
 5196            collaborators.next().map(CollaboratorId::PeerId)
 5197        } else if let Some(last_leader_id) =
 5198            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5199        {
 5200            match last_leader_id {
 5201                CollaboratorId::PeerId(peer_id) => {
 5202                    if collaborators.contains_key(peer_id) {
 5203                        Some(*last_leader_id)
 5204                    } else {
 5205                        None
 5206                    }
 5207                }
 5208                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5209            }
 5210        } else {
 5211            None
 5212        };
 5213
 5214        let pane = self.active_pane.clone();
 5215        let Some(leader_id) = next_leader_id.or_else(|| {
 5216            Some(CollaboratorId::PeerId(
 5217                collaborators.keys().copied().next()?,
 5218            ))
 5219        }) else {
 5220            return;
 5221        };
 5222        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5223            return;
 5224        }
 5225        if let Some(task) = self.start_following(leader_id, window, cx) {
 5226            task.detach_and_log_err(cx)
 5227        }
 5228    }
 5229
 5230    pub fn follow(
 5231        &mut self,
 5232        leader_id: impl Into<CollaboratorId>,
 5233        window: &mut Window,
 5234        cx: &mut Context<Self>,
 5235    ) {
 5236        let leader_id = leader_id.into();
 5237
 5238        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5239            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5240                return;
 5241            };
 5242            let Some(remote_participant) =
 5243                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5244            else {
 5245                return;
 5246            };
 5247
 5248            let project = self.project.read(cx);
 5249
 5250            let other_project_id = match remote_participant.location {
 5251                ParticipantLocation::External => None,
 5252                ParticipantLocation::UnsharedProject => None,
 5253                ParticipantLocation::SharedProject { project_id } => {
 5254                    if Some(project_id) == project.remote_id() {
 5255                        None
 5256                    } else {
 5257                        Some(project_id)
 5258                    }
 5259                }
 5260            };
 5261
 5262            // if they are active in another project, follow there.
 5263            if let Some(project_id) = other_project_id {
 5264                let app_state = self.app_state.clone();
 5265                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5266                    .detach_and_log_err(cx);
 5267            }
 5268        }
 5269
 5270        // if you're already following, find the right pane and focus it.
 5271        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5272            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5273
 5274            return;
 5275        }
 5276
 5277        // Otherwise, follow.
 5278        if let Some(task) = self.start_following(leader_id, window, cx) {
 5279            task.detach_and_log_err(cx)
 5280        }
 5281    }
 5282
 5283    pub fn unfollow(
 5284        &mut self,
 5285        leader_id: impl Into<CollaboratorId>,
 5286        window: &mut Window,
 5287        cx: &mut Context<Self>,
 5288    ) -> Option<()> {
 5289        cx.notify();
 5290
 5291        let leader_id = leader_id.into();
 5292        let state = self.follower_states.remove(&leader_id)?;
 5293        for (_, item) in state.items_by_leader_view_id {
 5294            item.view.set_leader_id(None, window, cx);
 5295        }
 5296
 5297        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5298            let project_id = self.project.read(cx).remote_id();
 5299            let room_id = self.active_call()?.room_id(cx)?;
 5300            self.app_state
 5301                .client
 5302                .send(proto::Unfollow {
 5303                    room_id,
 5304                    project_id,
 5305                    leader_id: Some(leader_peer_id),
 5306                })
 5307                .log_err();
 5308        }
 5309
 5310        Some(())
 5311    }
 5312
 5313    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5314        self.follower_states.contains_key(&id.into())
 5315    }
 5316
 5317    fn active_item_path_changed(
 5318        &mut self,
 5319        focus_changed: bool,
 5320        window: &mut Window,
 5321        cx: &mut Context<Self>,
 5322    ) {
 5323        cx.emit(Event::ActiveItemChanged);
 5324        let active_entry = self.active_project_path(cx);
 5325        self.project.update(cx, |project, cx| {
 5326            project.set_active_path(active_entry.clone(), cx)
 5327        });
 5328
 5329        if focus_changed && let Some(project_path) = &active_entry {
 5330            let git_store_entity = self.project.read(cx).git_store().clone();
 5331            git_store_entity.update(cx, |git_store, cx| {
 5332                git_store.set_active_repo_for_path(project_path, cx);
 5333            });
 5334        }
 5335
 5336        self.update_window_title(window, cx);
 5337    }
 5338
 5339    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5340        let project = self.project().read(cx);
 5341        let mut title = String::new();
 5342
 5343        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5344            let name = {
 5345                let settings_location = SettingsLocation {
 5346                    worktree_id: worktree.read(cx).id(),
 5347                    path: RelPath::empty(),
 5348                };
 5349
 5350                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5351                match &settings.project_name {
 5352                    Some(name) => name.as_str(),
 5353                    None => worktree.read(cx).root_name_str(),
 5354                }
 5355            };
 5356            if i > 0 {
 5357                title.push_str(", ");
 5358            }
 5359            title.push_str(name);
 5360        }
 5361
 5362        if title.is_empty() {
 5363            title = "empty project".to_string();
 5364        }
 5365
 5366        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5367            let filename = path.path.file_name().or_else(|| {
 5368                Some(
 5369                    project
 5370                        .worktree_for_id(path.worktree_id, cx)?
 5371                        .read(cx)
 5372                        .root_name_str(),
 5373                )
 5374            });
 5375
 5376            if let Some(filename) = filename {
 5377                title.push_str("");
 5378                title.push_str(filename.as_ref());
 5379            }
 5380        }
 5381
 5382        if project.is_via_collab() {
 5383            title.push_str("");
 5384        } else if project.is_shared() {
 5385            title.push_str("");
 5386        }
 5387
 5388        if let Some(last_title) = self.last_window_title.as_ref()
 5389            && &title == last_title
 5390        {
 5391            return;
 5392        }
 5393        window.set_window_title(&title);
 5394        SystemWindowTabController::update_tab_title(
 5395            cx,
 5396            window.window_handle().window_id(),
 5397            SharedString::from(&title),
 5398        );
 5399        self.last_window_title = Some(title);
 5400    }
 5401
 5402    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5403        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5404        if is_edited != self.window_edited {
 5405            self.window_edited = is_edited;
 5406            window.set_window_edited(self.window_edited)
 5407        }
 5408    }
 5409
 5410    fn update_item_dirty_state(
 5411        &mut self,
 5412        item: &dyn ItemHandle,
 5413        window: &mut Window,
 5414        cx: &mut App,
 5415    ) {
 5416        let is_dirty = item.is_dirty(cx);
 5417        let item_id = item.item_id();
 5418        let was_dirty = self.dirty_items.contains_key(&item_id);
 5419        if is_dirty == was_dirty {
 5420            return;
 5421        }
 5422        if was_dirty {
 5423            self.dirty_items.remove(&item_id);
 5424            self.update_window_edited(window, cx);
 5425            return;
 5426        }
 5427
 5428        let workspace = self.weak_handle();
 5429        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5430            return;
 5431        };
 5432        let on_release_callback = Box::new(move |cx: &mut App| {
 5433            window_handle
 5434                .update(cx, |_, window, cx| {
 5435                    workspace
 5436                        .update(cx, |workspace, cx| {
 5437                            workspace.dirty_items.remove(&item_id);
 5438                            workspace.update_window_edited(window, cx)
 5439                        })
 5440                        .ok();
 5441                })
 5442                .ok();
 5443        });
 5444
 5445        let s = item.on_release(cx, on_release_callback);
 5446        self.dirty_items.insert(item_id, s);
 5447        self.update_window_edited(window, cx);
 5448    }
 5449
 5450    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5451        if self.notifications.is_empty() {
 5452            None
 5453        } else {
 5454            Some(
 5455                div()
 5456                    .absolute()
 5457                    .right_3()
 5458                    .bottom_3()
 5459                    .w_112()
 5460                    .h_full()
 5461                    .flex()
 5462                    .flex_col()
 5463                    .justify_end()
 5464                    .gap_2()
 5465                    .children(
 5466                        self.notifications
 5467                            .iter()
 5468                            .map(|(_, notification)| notification.clone().into_any()),
 5469                    ),
 5470            )
 5471        }
 5472    }
 5473
 5474    // RPC handlers
 5475
 5476    fn active_view_for_follower(
 5477        &self,
 5478        follower_project_id: Option<u64>,
 5479        window: &mut Window,
 5480        cx: &mut Context<Self>,
 5481    ) -> Option<proto::View> {
 5482        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5483        let item = item?;
 5484        let leader_id = self
 5485            .pane_for(&*item)
 5486            .and_then(|pane| self.leader_for_pane(&pane));
 5487        let leader_peer_id = match leader_id {
 5488            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5489            Some(CollaboratorId::Agent) | None => None,
 5490        };
 5491
 5492        let item_handle = item.to_followable_item_handle(cx)?;
 5493        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5494        let variant = item_handle.to_state_proto(window, cx)?;
 5495
 5496        if item_handle.is_project_item(window, cx)
 5497            && (follower_project_id.is_none()
 5498                || follower_project_id != self.project.read(cx).remote_id())
 5499        {
 5500            return None;
 5501        }
 5502
 5503        Some(proto::View {
 5504            id: id.to_proto(),
 5505            leader_id: leader_peer_id,
 5506            variant: Some(variant),
 5507            panel_id: panel_id.map(|id| id as i32),
 5508        })
 5509    }
 5510
 5511    fn handle_follow(
 5512        &mut self,
 5513        follower_project_id: Option<u64>,
 5514        window: &mut Window,
 5515        cx: &mut Context<Self>,
 5516    ) -> proto::FollowResponse {
 5517        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5518
 5519        cx.notify();
 5520        proto::FollowResponse {
 5521            views: active_view.iter().cloned().collect(),
 5522            active_view,
 5523        }
 5524    }
 5525
 5526    fn handle_update_followers(
 5527        &mut self,
 5528        leader_id: PeerId,
 5529        message: proto::UpdateFollowers,
 5530        _window: &mut Window,
 5531        _cx: &mut Context<Self>,
 5532    ) {
 5533        self.leader_updates_tx
 5534            .unbounded_send((leader_id, message))
 5535            .ok();
 5536    }
 5537
 5538    async fn process_leader_update(
 5539        this: &WeakEntity<Self>,
 5540        leader_id: PeerId,
 5541        update: proto::UpdateFollowers,
 5542        cx: &mut AsyncWindowContext,
 5543    ) -> Result<()> {
 5544        match update.variant.context("invalid update")? {
 5545            proto::update_followers::Variant::CreateView(view) => {
 5546                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5547                let should_add_view = this.update(cx, |this, _| {
 5548                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5549                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5550                    } else {
 5551                        anyhow::Ok(false)
 5552                    }
 5553                })??;
 5554
 5555                if should_add_view {
 5556                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5557                }
 5558            }
 5559            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5560                let should_add_view = this.update(cx, |this, _| {
 5561                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5562                        state.active_view_id = update_active_view
 5563                            .view
 5564                            .as_ref()
 5565                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5566
 5567                        if state.active_view_id.is_some_and(|view_id| {
 5568                            !state.items_by_leader_view_id.contains_key(&view_id)
 5569                        }) {
 5570                            anyhow::Ok(true)
 5571                        } else {
 5572                            anyhow::Ok(false)
 5573                        }
 5574                    } else {
 5575                        anyhow::Ok(false)
 5576                    }
 5577                })??;
 5578
 5579                if should_add_view && let Some(view) = update_active_view.view {
 5580                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5581                }
 5582            }
 5583            proto::update_followers::Variant::UpdateView(update_view) => {
 5584                let variant = update_view.variant.context("missing update view variant")?;
 5585                let id = update_view.id.context("missing update view id")?;
 5586                let mut tasks = Vec::new();
 5587                this.update_in(cx, |this, window, cx| {
 5588                    let project = this.project.clone();
 5589                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5590                        let view_id = ViewId::from_proto(id.clone())?;
 5591                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5592                            tasks.push(item.view.apply_update_proto(
 5593                                &project,
 5594                                variant.clone(),
 5595                                window,
 5596                                cx,
 5597                            ));
 5598                        }
 5599                    }
 5600                    anyhow::Ok(())
 5601                })??;
 5602                try_join_all(tasks).await.log_err();
 5603            }
 5604        }
 5605        this.update_in(cx, |this, window, cx| {
 5606            this.leader_updated(leader_id, window, cx)
 5607        })?;
 5608        Ok(())
 5609    }
 5610
 5611    async fn add_view_from_leader(
 5612        this: WeakEntity<Self>,
 5613        leader_id: PeerId,
 5614        view: &proto::View,
 5615        cx: &mut AsyncWindowContext,
 5616    ) -> Result<()> {
 5617        let this = this.upgrade().context("workspace dropped")?;
 5618
 5619        let Some(id) = view.id.clone() else {
 5620            anyhow::bail!("no id for view");
 5621        };
 5622        let id = ViewId::from_proto(id)?;
 5623        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5624
 5625        let pane = this.update(cx, |this, _cx| {
 5626            let state = this
 5627                .follower_states
 5628                .get(&leader_id.into())
 5629                .context("stopped following")?;
 5630            anyhow::Ok(state.pane().clone())
 5631        })?;
 5632        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5633            let client = this.read(cx).client().clone();
 5634            pane.items().find_map(|item| {
 5635                let item = item.to_followable_item_handle(cx)?;
 5636                if item.remote_id(&client, window, cx) == Some(id) {
 5637                    Some(item)
 5638                } else {
 5639                    None
 5640                }
 5641            })
 5642        })?;
 5643        let item = if let Some(existing_item) = existing_item {
 5644            existing_item
 5645        } else {
 5646            let variant = view.variant.clone();
 5647            anyhow::ensure!(variant.is_some(), "missing view variant");
 5648
 5649            let task = cx.update(|window, cx| {
 5650                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5651            })?;
 5652
 5653            let Some(task) = task else {
 5654                anyhow::bail!(
 5655                    "failed to construct view from leader (maybe from a different version of zed?)"
 5656                );
 5657            };
 5658
 5659            let mut new_item = task.await?;
 5660            pane.update_in(cx, |pane, window, cx| {
 5661                let mut item_to_remove = None;
 5662                for (ix, item) in pane.items().enumerate() {
 5663                    if let Some(item) = item.to_followable_item_handle(cx) {
 5664                        match new_item.dedup(item.as_ref(), window, cx) {
 5665                            Some(item::Dedup::KeepExisting) => {
 5666                                new_item =
 5667                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5668                                break;
 5669                            }
 5670                            Some(item::Dedup::ReplaceExisting) => {
 5671                                item_to_remove = Some((ix, item.item_id()));
 5672                                break;
 5673                            }
 5674                            None => {}
 5675                        }
 5676                    }
 5677                }
 5678
 5679                if let Some((ix, id)) = item_to_remove {
 5680                    pane.remove_item(id, false, false, window, cx);
 5681                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5682                }
 5683            })?;
 5684
 5685            new_item
 5686        };
 5687
 5688        this.update_in(cx, |this, window, cx| {
 5689            let state = this.follower_states.get_mut(&leader_id.into())?;
 5690            item.set_leader_id(Some(leader_id.into()), window, cx);
 5691            state.items_by_leader_view_id.insert(
 5692                id,
 5693                FollowerView {
 5694                    view: item,
 5695                    location: panel_id,
 5696                },
 5697            );
 5698
 5699            Some(())
 5700        })
 5701        .context("no follower state")?;
 5702
 5703        Ok(())
 5704    }
 5705
 5706    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5707        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5708            return;
 5709        };
 5710
 5711        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5712            let buffer_entity_id = agent_location.buffer.entity_id();
 5713            let view_id = ViewId {
 5714                creator: CollaboratorId::Agent,
 5715                id: buffer_entity_id.as_u64(),
 5716            };
 5717            follower_state.active_view_id = Some(view_id);
 5718
 5719            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5720                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5721                hash_map::Entry::Vacant(entry) => {
 5722                    let existing_view =
 5723                        follower_state
 5724                            .center_pane
 5725                            .read(cx)
 5726                            .items()
 5727                            .find_map(|item| {
 5728                                let item = item.to_followable_item_handle(cx)?;
 5729                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5730                                    && item.project_item_model_ids(cx).as_slice()
 5731                                        == [buffer_entity_id]
 5732                                {
 5733                                    Some(item)
 5734                                } else {
 5735                                    None
 5736                                }
 5737                            });
 5738                    let view = existing_view.or_else(|| {
 5739                        agent_location.buffer.upgrade().and_then(|buffer| {
 5740                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5741                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5742                            })?
 5743                            .to_followable_item_handle(cx)
 5744                        })
 5745                    });
 5746
 5747                    view.map(|view| {
 5748                        entry.insert(FollowerView {
 5749                            view,
 5750                            location: None,
 5751                        })
 5752                    })
 5753                }
 5754            };
 5755
 5756            if let Some(item) = item {
 5757                item.view
 5758                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5759                item.view
 5760                    .update_agent_location(agent_location.position, window, cx);
 5761            }
 5762        } else {
 5763            follower_state.active_view_id = None;
 5764        }
 5765
 5766        self.leader_updated(CollaboratorId::Agent, window, cx);
 5767    }
 5768
 5769    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5770        let mut is_project_item = true;
 5771        let mut update = proto::UpdateActiveView::default();
 5772        if window.is_window_active() {
 5773            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5774
 5775            if let Some(item) = active_item
 5776                && item.item_focus_handle(cx).contains_focused(window, cx)
 5777            {
 5778                let leader_id = self
 5779                    .pane_for(&*item)
 5780                    .and_then(|pane| self.leader_for_pane(&pane));
 5781                let leader_peer_id = match leader_id {
 5782                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5783                    Some(CollaboratorId::Agent) | None => None,
 5784                };
 5785
 5786                if let Some(item) = item.to_followable_item_handle(cx) {
 5787                    let id = item
 5788                        .remote_id(&self.app_state.client, window, cx)
 5789                        .map(|id| id.to_proto());
 5790
 5791                    if let Some(id) = id
 5792                        && let Some(variant) = item.to_state_proto(window, cx)
 5793                    {
 5794                        let view = Some(proto::View {
 5795                            id,
 5796                            leader_id: leader_peer_id,
 5797                            variant: Some(variant),
 5798                            panel_id: panel_id.map(|id| id as i32),
 5799                        });
 5800
 5801                        is_project_item = item.is_project_item(window, cx);
 5802                        update = proto::UpdateActiveView { view };
 5803                    };
 5804                }
 5805            }
 5806        }
 5807
 5808        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5809        if active_view_id != self.last_active_view_id.as_ref() {
 5810            self.last_active_view_id = active_view_id.cloned();
 5811            self.update_followers(
 5812                is_project_item,
 5813                proto::update_followers::Variant::UpdateActiveView(update),
 5814                window,
 5815                cx,
 5816            );
 5817        }
 5818    }
 5819
 5820    fn active_item_for_followers(
 5821        &self,
 5822        window: &mut Window,
 5823        cx: &mut App,
 5824    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5825        let mut active_item = None;
 5826        let mut panel_id = None;
 5827        for dock in self.all_docks() {
 5828            if dock.focus_handle(cx).contains_focused(window, cx)
 5829                && let Some(panel) = dock.read(cx).active_panel()
 5830                && let Some(pane) = panel.pane(cx)
 5831                && let Some(item) = pane.read(cx).active_item()
 5832            {
 5833                active_item = Some(item);
 5834                panel_id = panel.remote_id();
 5835                break;
 5836            }
 5837        }
 5838
 5839        if active_item.is_none() {
 5840            active_item = self.active_pane().read(cx).active_item();
 5841        }
 5842        (active_item, panel_id)
 5843    }
 5844
 5845    fn update_followers(
 5846        &self,
 5847        project_only: bool,
 5848        update: proto::update_followers::Variant,
 5849        _: &mut Window,
 5850        cx: &mut App,
 5851    ) -> Option<()> {
 5852        // If this update only applies to for followers in the current project,
 5853        // then skip it unless this project is shared. If it applies to all
 5854        // followers, regardless of project, then set `project_id` to none,
 5855        // indicating that it goes to all followers.
 5856        let project_id = if project_only {
 5857            Some(self.project.read(cx).remote_id()?)
 5858        } else {
 5859            None
 5860        };
 5861        self.app_state().workspace_store.update(cx, |store, cx| {
 5862            store.update_followers(project_id, update, cx)
 5863        })
 5864    }
 5865
 5866    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5867        self.follower_states.iter().find_map(|(leader_id, state)| {
 5868            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5869                Some(*leader_id)
 5870            } else {
 5871                None
 5872            }
 5873        })
 5874    }
 5875
 5876    fn leader_updated(
 5877        &mut self,
 5878        leader_id: impl Into<CollaboratorId>,
 5879        window: &mut Window,
 5880        cx: &mut Context<Self>,
 5881    ) -> Option<Box<dyn ItemHandle>> {
 5882        cx.notify();
 5883
 5884        let leader_id = leader_id.into();
 5885        let (panel_id, item) = match leader_id {
 5886            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5887            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5888        };
 5889
 5890        let state = self.follower_states.get(&leader_id)?;
 5891        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5892        let pane;
 5893        if let Some(panel_id) = panel_id {
 5894            pane = self
 5895                .activate_panel_for_proto_id(panel_id, window, cx)?
 5896                .pane(cx)?;
 5897            let state = self.follower_states.get_mut(&leader_id)?;
 5898            state.dock_pane = Some(pane.clone());
 5899        } else {
 5900            pane = state.center_pane.clone();
 5901            let state = self.follower_states.get_mut(&leader_id)?;
 5902            if let Some(dock_pane) = state.dock_pane.take() {
 5903                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5904            }
 5905        }
 5906
 5907        pane.update(cx, |pane, cx| {
 5908            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5909            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5910                pane.activate_item(index, false, false, window, cx);
 5911            } else {
 5912                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5913            }
 5914
 5915            if focus_active_item {
 5916                pane.focus_active_item(window, cx)
 5917            }
 5918        });
 5919
 5920        Some(item)
 5921    }
 5922
 5923    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5924        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5925        let active_view_id = state.active_view_id?;
 5926        Some(
 5927            state
 5928                .items_by_leader_view_id
 5929                .get(&active_view_id)?
 5930                .view
 5931                .boxed_clone(),
 5932        )
 5933    }
 5934
 5935    fn active_item_for_peer(
 5936        &self,
 5937        peer_id: PeerId,
 5938        window: &mut Window,
 5939        cx: &mut Context<Self>,
 5940    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5941        let call = self.active_call()?;
 5942        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 5943        let leader_in_this_app;
 5944        let leader_in_this_project;
 5945        match participant.location {
 5946            ParticipantLocation::SharedProject { project_id } => {
 5947                leader_in_this_app = true;
 5948                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5949            }
 5950            ParticipantLocation::UnsharedProject => {
 5951                leader_in_this_app = true;
 5952                leader_in_this_project = false;
 5953            }
 5954            ParticipantLocation::External => {
 5955                leader_in_this_app = false;
 5956                leader_in_this_project = false;
 5957            }
 5958        };
 5959        let state = self.follower_states.get(&peer_id.into())?;
 5960        let mut item_to_activate = None;
 5961        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5962            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5963                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5964            {
 5965                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5966            }
 5967        } else if let Some(shared_screen) =
 5968            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5969        {
 5970            item_to_activate = Some((None, Box::new(shared_screen)));
 5971        }
 5972        item_to_activate
 5973    }
 5974
 5975    fn shared_screen_for_peer(
 5976        &self,
 5977        peer_id: PeerId,
 5978        pane: &Entity<Pane>,
 5979        window: &mut Window,
 5980        cx: &mut App,
 5981    ) -> Option<Entity<SharedScreen>> {
 5982        self.active_call()?
 5983            .create_shared_screen(peer_id, pane, window, cx)
 5984    }
 5985
 5986    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5987        if window.is_window_active() {
 5988            self.update_active_view_for_followers(window, cx);
 5989
 5990            if let Some(database_id) = self.database_id {
 5991                let db = WorkspaceDb::global(cx);
 5992                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 5993                    .detach();
 5994            }
 5995        } else {
 5996            for pane in &self.panes {
 5997                pane.update(cx, |pane, cx| {
 5998                    if let Some(item) = pane.active_item() {
 5999                        item.workspace_deactivated(window, cx);
 6000                    }
 6001                    for item in pane.items() {
 6002                        if matches!(
 6003                            item.workspace_settings(cx).autosave,
 6004                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6005                        ) {
 6006                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6007                                .detach_and_log_err(cx);
 6008                        }
 6009                    }
 6010                });
 6011            }
 6012        }
 6013    }
 6014
 6015    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6016        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6017    }
 6018
 6019    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6020        self.active_call.as_ref().map(|(call, _)| call.clone())
 6021    }
 6022
 6023    fn on_active_call_event(
 6024        &mut self,
 6025        event: &ActiveCallEvent,
 6026        window: &mut Window,
 6027        cx: &mut Context<Self>,
 6028    ) {
 6029        match event {
 6030            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6031            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6032                self.leader_updated(participant_id, window, cx);
 6033            }
 6034        }
 6035    }
 6036
 6037    pub fn database_id(&self) -> Option<WorkspaceId> {
 6038        self.database_id
 6039    }
 6040
 6041    #[cfg(any(test, feature = "test-support"))]
 6042    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6043        self.database_id = Some(id);
 6044    }
 6045
 6046    pub fn session_id(&self) -> Option<String> {
 6047        self.session_id.clone()
 6048    }
 6049
 6050    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6051        let Some(display) = window.display(cx) else {
 6052            return Task::ready(());
 6053        };
 6054        let Ok(display_uuid) = display.uuid() else {
 6055            return Task::ready(());
 6056        };
 6057
 6058        let window_bounds = window.inner_window_bounds();
 6059        let database_id = self.database_id;
 6060        let has_paths = !self.root_paths(cx).is_empty();
 6061        let db = WorkspaceDb::global(cx);
 6062        let kvp = db::kvp::KeyValueStore::global(cx);
 6063
 6064        cx.background_executor().spawn(async move {
 6065            if !has_paths {
 6066                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6067                    .await
 6068                    .log_err();
 6069            }
 6070            if let Some(database_id) = database_id {
 6071                db.set_window_open_status(
 6072                    database_id,
 6073                    SerializedWindowBounds(window_bounds),
 6074                    display_uuid,
 6075                )
 6076                .await
 6077                .log_err();
 6078            } else {
 6079                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6080                    .await
 6081                    .log_err();
 6082            }
 6083        })
 6084    }
 6085
 6086    /// Bypass the 200ms serialization throttle and write workspace state to
 6087    /// the DB immediately. Returns a task the caller can await to ensure the
 6088    /// write completes. Used by the quit handler so the most recent state
 6089    /// isn't lost to a pending throttle timer when the process exits.
 6090    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6091        self._schedule_serialize_workspace.take();
 6092        self._serialize_workspace_task.take();
 6093        self.bounds_save_task_queued.take();
 6094
 6095        let bounds_task = self.save_window_bounds(window, cx);
 6096        let serialize_task = self.serialize_workspace_internal(window, cx);
 6097        cx.spawn(async move |_| {
 6098            bounds_task.await;
 6099            serialize_task.await;
 6100        })
 6101    }
 6102
 6103    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6104        let project = self.project().read(cx);
 6105        project
 6106            .visible_worktrees(cx)
 6107            .map(|worktree| worktree.read(cx).abs_path())
 6108            .collect::<Vec<_>>()
 6109    }
 6110
 6111    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6112        match member {
 6113            Member::Axis(PaneAxis { members, .. }) => {
 6114                for child in members.iter() {
 6115                    self.remove_panes(child.clone(), window, cx)
 6116                }
 6117            }
 6118            Member::Pane(pane) => {
 6119                self.force_remove_pane(&pane, &None, window, cx);
 6120            }
 6121        }
 6122    }
 6123
 6124    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6125        self.session_id.take();
 6126        self.serialize_workspace_internal(window, cx)
 6127    }
 6128
 6129    fn force_remove_pane(
 6130        &mut self,
 6131        pane: &Entity<Pane>,
 6132        focus_on: &Option<Entity<Pane>>,
 6133        window: &mut Window,
 6134        cx: &mut Context<Workspace>,
 6135    ) {
 6136        self.panes.retain(|p| p != pane);
 6137        if let Some(focus_on) = focus_on {
 6138            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6139        } else if self.active_pane() == pane {
 6140            self.panes
 6141                .last()
 6142                .unwrap()
 6143                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6144        }
 6145        if self.last_active_center_pane == Some(pane.downgrade()) {
 6146            self.last_active_center_pane = None;
 6147        }
 6148        cx.notify();
 6149    }
 6150
 6151    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6152        if self._schedule_serialize_workspace.is_none() {
 6153            self._schedule_serialize_workspace =
 6154                Some(cx.spawn_in(window, async move |this, cx| {
 6155                    cx.background_executor()
 6156                        .timer(SERIALIZATION_THROTTLE_TIME)
 6157                        .await;
 6158                    this.update_in(cx, |this, window, cx| {
 6159                        this._serialize_workspace_task =
 6160                            Some(this.serialize_workspace_internal(window, cx));
 6161                        this._schedule_serialize_workspace.take();
 6162                    })
 6163                    .log_err();
 6164                }));
 6165        }
 6166    }
 6167
 6168    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6169        let Some(database_id) = self.database_id() else {
 6170            return Task::ready(());
 6171        };
 6172
 6173        fn serialize_pane_handle(
 6174            pane_handle: &Entity<Pane>,
 6175            window: &mut Window,
 6176            cx: &mut App,
 6177        ) -> SerializedPane {
 6178            let (items, active, pinned_count) = {
 6179                let pane = pane_handle.read(cx);
 6180                let active_item_id = pane.active_item().map(|item| item.item_id());
 6181                (
 6182                    pane.items()
 6183                        .filter_map(|handle| {
 6184                            let handle = handle.to_serializable_item_handle(cx)?;
 6185
 6186                            Some(SerializedItem {
 6187                                kind: Arc::from(handle.serialized_item_kind()),
 6188                                item_id: handle.item_id().as_u64(),
 6189                                active: Some(handle.item_id()) == active_item_id,
 6190                                preview: pane.is_active_preview_item(handle.item_id()),
 6191                            })
 6192                        })
 6193                        .collect::<Vec<_>>(),
 6194                    pane.has_focus(window, cx),
 6195                    pane.pinned_count(),
 6196                )
 6197            };
 6198
 6199            SerializedPane::new(items, active, pinned_count)
 6200        }
 6201
 6202        fn build_serialized_pane_group(
 6203            pane_group: &Member,
 6204            window: &mut Window,
 6205            cx: &mut App,
 6206        ) -> SerializedPaneGroup {
 6207            match pane_group {
 6208                Member::Axis(PaneAxis {
 6209                    axis,
 6210                    members,
 6211                    flexes,
 6212                    bounding_boxes: _,
 6213                }) => SerializedPaneGroup::Group {
 6214                    axis: SerializedAxis(*axis),
 6215                    children: members
 6216                        .iter()
 6217                        .map(|member| build_serialized_pane_group(member, window, cx))
 6218                        .collect::<Vec<_>>(),
 6219                    flexes: Some(flexes.lock().clone()),
 6220                },
 6221                Member::Pane(pane_handle) => {
 6222                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6223                }
 6224            }
 6225        }
 6226
 6227        fn build_serialized_docks(
 6228            this: &Workspace,
 6229            window: &mut Window,
 6230            cx: &mut App,
 6231        ) -> DockStructure {
 6232            this.capture_dock_state(window, cx)
 6233        }
 6234
 6235        match self.workspace_location(cx) {
 6236            WorkspaceLocation::Location(location, paths) => {
 6237                let breakpoints = self.project.update(cx, |project, cx| {
 6238                    project
 6239                        .breakpoint_store()
 6240                        .read(cx)
 6241                        .all_source_breakpoints(cx)
 6242                });
 6243                let user_toolchains = self
 6244                    .project
 6245                    .read(cx)
 6246                    .user_toolchains(cx)
 6247                    .unwrap_or_default();
 6248
 6249                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6250                let docks = build_serialized_docks(self, window, cx);
 6251                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6252
 6253                let serialized_workspace = SerializedWorkspace {
 6254                    id: database_id,
 6255                    location,
 6256                    paths,
 6257                    center_group,
 6258                    window_bounds,
 6259                    display: Default::default(),
 6260                    docks,
 6261                    centered_layout: self.centered_layout,
 6262                    session_id: self.session_id.clone(),
 6263                    breakpoints,
 6264                    window_id: Some(window.window_handle().window_id().as_u64()),
 6265                    user_toolchains,
 6266                };
 6267
 6268                let db = WorkspaceDb::global(cx);
 6269                window.spawn(cx, async move |_| {
 6270                    db.save_workspace(serialized_workspace).await;
 6271                })
 6272            }
 6273            WorkspaceLocation::DetachFromSession => {
 6274                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6275                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6276                // Save dock state for empty local workspaces
 6277                let docks = build_serialized_docks(self, window, cx);
 6278                let db = WorkspaceDb::global(cx);
 6279                let kvp = db::kvp::KeyValueStore::global(cx);
 6280                window.spawn(cx, async move |_| {
 6281                    db.set_window_open_status(
 6282                        database_id,
 6283                        window_bounds,
 6284                        display.unwrap_or_default(),
 6285                    )
 6286                    .await
 6287                    .log_err();
 6288                    db.set_session_id(database_id, None).await.log_err();
 6289                    persistence::write_default_dock_state(&kvp, docks)
 6290                        .await
 6291                        .log_err();
 6292                })
 6293            }
 6294            WorkspaceLocation::None => {
 6295                // Save dock state for empty non-local workspaces
 6296                let docks = build_serialized_docks(self, window, cx);
 6297                let kvp = db::kvp::KeyValueStore::global(cx);
 6298                window.spawn(cx, async move |_| {
 6299                    persistence::write_default_dock_state(&kvp, docks)
 6300                        .await
 6301                        .log_err();
 6302                })
 6303            }
 6304        }
 6305    }
 6306
 6307    fn has_any_items_open(&self, cx: &App) -> bool {
 6308        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6309    }
 6310
 6311    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6312        let paths = PathList::new(&self.root_paths(cx));
 6313        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6314            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6315        } else if self.project.read(cx).is_local() {
 6316            if !paths.is_empty() || self.has_any_items_open(cx) {
 6317                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6318            } else {
 6319                WorkspaceLocation::DetachFromSession
 6320            }
 6321        } else {
 6322            WorkspaceLocation::None
 6323        }
 6324    }
 6325
 6326    fn update_history(&self, cx: &mut App) {
 6327        let Some(id) = self.database_id() else {
 6328            return;
 6329        };
 6330        if !self.project.read(cx).is_local() {
 6331            return;
 6332        }
 6333        if let Some(manager) = HistoryManager::global(cx) {
 6334            let paths = PathList::new(&self.root_paths(cx));
 6335            manager.update(cx, |this, cx| {
 6336                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6337            });
 6338        }
 6339    }
 6340
 6341    async fn serialize_items(
 6342        this: &WeakEntity<Self>,
 6343        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6344        cx: &mut AsyncWindowContext,
 6345    ) -> Result<()> {
 6346        const CHUNK_SIZE: usize = 200;
 6347
 6348        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6349
 6350        while let Some(items_received) = serializable_items.next().await {
 6351            let unique_items =
 6352                items_received
 6353                    .into_iter()
 6354                    .fold(HashMap::default(), |mut acc, item| {
 6355                        acc.entry(item.item_id()).or_insert(item);
 6356                        acc
 6357                    });
 6358
 6359            // We use into_iter() here so that the references to the items are moved into
 6360            // the tasks and not kept alive while we're sleeping.
 6361            for (_, item) in unique_items.into_iter() {
 6362                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6363                    item.serialize(workspace, false, window, cx)
 6364                }) {
 6365                    cx.background_spawn(async move { task.await.log_err() })
 6366                        .detach();
 6367                }
 6368            }
 6369
 6370            cx.background_executor()
 6371                .timer(SERIALIZATION_THROTTLE_TIME)
 6372                .await;
 6373        }
 6374
 6375        Ok(())
 6376    }
 6377
 6378    pub(crate) fn enqueue_item_serialization(
 6379        &mut self,
 6380        item: Box<dyn SerializableItemHandle>,
 6381    ) -> Result<()> {
 6382        self.serializable_items_tx
 6383            .unbounded_send(item)
 6384            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6385    }
 6386
 6387    pub(crate) fn load_workspace(
 6388        serialized_workspace: SerializedWorkspace,
 6389        paths_to_open: Vec<Option<ProjectPath>>,
 6390        window: &mut Window,
 6391        cx: &mut Context<Workspace>,
 6392    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6393        cx.spawn_in(window, async move |workspace, cx| {
 6394            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6395
 6396            let mut center_group = None;
 6397            let mut center_items = None;
 6398
 6399            // Traverse the splits tree and add to things
 6400            if let Some((group, active_pane, items)) = serialized_workspace
 6401                .center_group
 6402                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6403                .await
 6404            {
 6405                center_items = Some(items);
 6406                center_group = Some((group, active_pane))
 6407            }
 6408
 6409            let mut items_by_project_path = HashMap::default();
 6410            let mut item_ids_by_kind = HashMap::default();
 6411            let mut all_deserialized_items = Vec::default();
 6412            cx.update(|_, cx| {
 6413                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6414                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6415                        item_ids_by_kind
 6416                            .entry(serializable_item_handle.serialized_item_kind())
 6417                            .or_insert(Vec::new())
 6418                            .push(item.item_id().as_u64() as ItemId);
 6419                    }
 6420
 6421                    if let Some(project_path) = item.project_path(cx) {
 6422                        items_by_project_path.insert(project_path, item.clone());
 6423                    }
 6424                    all_deserialized_items.push(item);
 6425                }
 6426            })?;
 6427
 6428            let opened_items = paths_to_open
 6429                .into_iter()
 6430                .map(|path_to_open| {
 6431                    path_to_open
 6432                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6433                })
 6434                .collect::<Vec<_>>();
 6435
 6436            // Remove old panes from workspace panes list
 6437            workspace.update_in(cx, |workspace, window, cx| {
 6438                if let Some((center_group, active_pane)) = center_group {
 6439                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6440
 6441                    // Swap workspace center group
 6442                    workspace.center = PaneGroup::with_root(center_group);
 6443                    workspace.center.set_is_center(true);
 6444                    workspace.center.mark_positions(cx);
 6445
 6446                    if let Some(active_pane) = active_pane {
 6447                        workspace.set_active_pane(&active_pane, window, cx);
 6448                        cx.focus_self(window);
 6449                    } else {
 6450                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6451                    }
 6452                }
 6453
 6454                let docks = serialized_workspace.docks;
 6455
 6456                for (dock, serialized_dock) in [
 6457                    (&mut workspace.right_dock, docks.right),
 6458                    (&mut workspace.left_dock, docks.left),
 6459                    (&mut workspace.bottom_dock, docks.bottom),
 6460                ]
 6461                .iter_mut()
 6462                {
 6463                    dock.update(cx, |dock, cx| {
 6464                        dock.serialized_dock = Some(serialized_dock.clone());
 6465                        dock.restore_state(window, cx);
 6466                    });
 6467                }
 6468
 6469                cx.notify();
 6470            })?;
 6471
 6472            let _ = project
 6473                .update(cx, |project, cx| {
 6474                    project
 6475                        .breakpoint_store()
 6476                        .update(cx, |breakpoint_store, cx| {
 6477                            breakpoint_store
 6478                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6479                        })
 6480                })
 6481                .await;
 6482
 6483            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6484            // after loading the items, we might have different items and in order to avoid
 6485            // the database filling up, we delete items that haven't been loaded now.
 6486            //
 6487            // The items that have been loaded, have been saved after they've been added to the workspace.
 6488            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6489                item_ids_by_kind
 6490                    .into_iter()
 6491                    .map(|(item_kind, loaded_items)| {
 6492                        SerializableItemRegistry::cleanup(
 6493                            item_kind,
 6494                            serialized_workspace.id,
 6495                            loaded_items,
 6496                            window,
 6497                            cx,
 6498                        )
 6499                        .log_err()
 6500                    })
 6501                    .collect::<Vec<_>>()
 6502            })?;
 6503
 6504            futures::future::join_all(clean_up_tasks).await;
 6505
 6506            workspace
 6507                .update_in(cx, |workspace, window, cx| {
 6508                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6509                    workspace.serialize_workspace_internal(window, cx).detach();
 6510
 6511                    // Ensure that we mark the window as edited if we did load dirty items
 6512                    workspace.update_window_edited(window, cx);
 6513                })
 6514                .ok();
 6515
 6516            Ok(opened_items)
 6517        })
 6518    }
 6519
 6520    pub fn key_context(&self, cx: &App) -> KeyContext {
 6521        let mut context = KeyContext::new_with_defaults();
 6522        context.add("Workspace");
 6523        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6524        if let Some(status) = self
 6525            .debugger_provider
 6526            .as_ref()
 6527            .and_then(|provider| provider.active_thread_state(cx))
 6528        {
 6529            match status {
 6530                ThreadStatus::Running | ThreadStatus::Stepping => {
 6531                    context.add("debugger_running");
 6532                }
 6533                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6534                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6535            }
 6536        }
 6537
 6538        if self.left_dock.read(cx).is_open() {
 6539            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6540                context.set("left_dock", active_panel.panel_key());
 6541            }
 6542        }
 6543
 6544        if self.right_dock.read(cx).is_open() {
 6545            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6546                context.set("right_dock", active_panel.panel_key());
 6547            }
 6548        }
 6549
 6550        if self.bottom_dock.read(cx).is_open() {
 6551            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6552                context.set("bottom_dock", active_panel.panel_key());
 6553            }
 6554        }
 6555
 6556        context
 6557    }
 6558
 6559    /// Multiworkspace uses this to add workspace action handling to itself
 6560    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6561        self.add_workspace_actions_listeners(div, window, cx)
 6562            .on_action(cx.listener(
 6563                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6564                    for action in &action_sequence.0 {
 6565                        window.dispatch_action(action.boxed_clone(), cx);
 6566                    }
 6567                },
 6568            ))
 6569            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6570            .on_action(cx.listener(Self::close_all_items_and_panes))
 6571            .on_action(cx.listener(Self::close_item_in_all_panes))
 6572            .on_action(cx.listener(Self::save_all))
 6573            .on_action(cx.listener(Self::send_keystrokes))
 6574            .on_action(cx.listener(Self::add_folder_to_project))
 6575            .on_action(cx.listener(Self::follow_next_collaborator))
 6576            .on_action(cx.listener(Self::activate_pane_at_index))
 6577            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6578            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6579            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6580            .on_action(cx.listener(Self::toggle_theme_mode))
 6581            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6582                let pane = workspace.active_pane().clone();
 6583                workspace.unfollow_in_pane(&pane, window, cx);
 6584            }))
 6585            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6586                workspace
 6587                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6588                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6589            }))
 6590            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6591                workspace
 6592                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6593                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6594            }))
 6595            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6596                workspace
 6597                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6598                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6599            }))
 6600            .on_action(
 6601                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6602                    workspace.activate_previous_pane(window, cx)
 6603                }),
 6604            )
 6605            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6606                workspace.activate_next_pane(window, cx)
 6607            }))
 6608            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6609                workspace.activate_last_pane(window, cx)
 6610            }))
 6611            .on_action(
 6612                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6613                    workspace.activate_next_window(cx)
 6614                }),
 6615            )
 6616            .on_action(
 6617                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6618                    workspace.activate_previous_window(cx)
 6619                }),
 6620            )
 6621            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6622                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6623            }))
 6624            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6625                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6626            }))
 6627            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6628                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6629            }))
 6630            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6631                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6632            }))
 6633            .on_action(cx.listener(
 6634                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6635                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6636                },
 6637            ))
 6638            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6639                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6640            }))
 6641            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6642                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6643            }))
 6644            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6645                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6646            }))
 6647            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6648                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6649            }))
 6650            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6651                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6652                    SplitDirection::Down,
 6653                    SplitDirection::Up,
 6654                    SplitDirection::Right,
 6655                    SplitDirection::Left,
 6656                ];
 6657                for dir in DIRECTION_PRIORITY {
 6658                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6659                        workspace.swap_pane_in_direction(dir, cx);
 6660                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6661                        break;
 6662                    }
 6663                }
 6664            }))
 6665            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6666                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6667            }))
 6668            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6669                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6670            }))
 6671            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6672                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6673            }))
 6674            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6675                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6676            }))
 6677            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6678                this.toggle_dock(DockPosition::Left, window, cx);
 6679            }))
 6680            .on_action(cx.listener(
 6681                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6682                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6683                },
 6684            ))
 6685            .on_action(cx.listener(
 6686                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6687                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6688                },
 6689            ))
 6690            .on_action(cx.listener(
 6691                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6692                    if !workspace.close_active_dock(window, cx) {
 6693                        cx.propagate();
 6694                    }
 6695                },
 6696            ))
 6697            .on_action(
 6698                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6699                    workspace.close_all_docks(window, cx);
 6700                }),
 6701            )
 6702            .on_action(cx.listener(Self::toggle_all_docks))
 6703            .on_action(cx.listener(
 6704                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6705                    workspace.clear_all_notifications(cx);
 6706                },
 6707            ))
 6708            .on_action(cx.listener(
 6709                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6710                    workspace.clear_navigation_history(window, cx);
 6711                },
 6712            ))
 6713            .on_action(cx.listener(
 6714                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6715                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6716                        workspace.suppress_notification(&notification_id, cx);
 6717                    }
 6718                },
 6719            ))
 6720            .on_action(cx.listener(
 6721                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6722                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6723                },
 6724            ))
 6725            .on_action(
 6726                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6727                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6728                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6729                            trusted_worktrees.clear_trusted_paths()
 6730                        });
 6731                        let db = WorkspaceDb::global(cx);
 6732                        cx.spawn(async move |_, cx| {
 6733                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 6734                                cx.update(|cx| reload(cx));
 6735                            }
 6736                        })
 6737                        .detach();
 6738                    }
 6739                }),
 6740            )
 6741            .on_action(cx.listener(
 6742                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6743                    workspace.reopen_closed_item(window, cx).detach();
 6744                },
 6745            ))
 6746            .on_action(cx.listener(
 6747                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6748                    for dock in workspace.all_docks() {
 6749                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6750                            let Some(panel) = dock.read(cx).active_panel() else {
 6751                                return;
 6752                            };
 6753
 6754                            // Set to `None`, then the size will fall back to the default.
 6755                            panel.clone().set_size(None, window, cx);
 6756
 6757                            return;
 6758                        }
 6759                    }
 6760                },
 6761            ))
 6762            .on_action(cx.listener(
 6763                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6764                    for dock in workspace.all_docks() {
 6765                        if let Some(panel) = dock.read(cx).visible_panel() {
 6766                            // Set to `None`, then the size will fall back to the default.
 6767                            panel.clone().set_size(None, window, cx);
 6768                        }
 6769                    }
 6770                },
 6771            ))
 6772            .on_action(cx.listener(
 6773                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6774                    adjust_active_dock_size_by_px(
 6775                        px_with_ui_font_fallback(act.px, cx),
 6776                        workspace,
 6777                        window,
 6778                        cx,
 6779                    );
 6780                },
 6781            ))
 6782            .on_action(cx.listener(
 6783                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6784                    adjust_active_dock_size_by_px(
 6785                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6786                        workspace,
 6787                        window,
 6788                        cx,
 6789                    );
 6790                },
 6791            ))
 6792            .on_action(cx.listener(
 6793                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6794                    adjust_open_docks_size_by_px(
 6795                        px_with_ui_font_fallback(act.px, cx),
 6796                        workspace,
 6797                        window,
 6798                        cx,
 6799                    );
 6800                },
 6801            ))
 6802            .on_action(cx.listener(
 6803                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6804                    adjust_open_docks_size_by_px(
 6805                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6806                        workspace,
 6807                        window,
 6808                        cx,
 6809                    );
 6810                },
 6811            ))
 6812            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6813            .on_action(cx.listener(
 6814                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6815                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6816                        let dock = active_dock.read(cx);
 6817                        if let Some(active_panel) = dock.active_panel() {
 6818                            if active_panel.pane(cx).is_none() {
 6819                                let mut recent_pane: Option<Entity<Pane>> = None;
 6820                                let mut recent_timestamp = 0;
 6821                                for pane_handle in workspace.panes() {
 6822                                    let pane = pane_handle.read(cx);
 6823                                    for entry in pane.activation_history() {
 6824                                        if entry.timestamp > recent_timestamp {
 6825                                            recent_timestamp = entry.timestamp;
 6826                                            recent_pane = Some(pane_handle.clone());
 6827                                        }
 6828                                    }
 6829                                }
 6830
 6831                                if let Some(pane) = recent_pane {
 6832                                    pane.update(cx, |pane, cx| {
 6833                                        let current_index = pane.active_item_index();
 6834                                        let items_len = pane.items_len();
 6835                                        if items_len > 0 {
 6836                                            let next_index = if current_index + 1 < items_len {
 6837                                                current_index + 1
 6838                                            } else {
 6839                                                0
 6840                                            };
 6841                                            pane.activate_item(
 6842                                                next_index, false, false, window, cx,
 6843                                            );
 6844                                        }
 6845                                    });
 6846                                    return;
 6847                                }
 6848                            }
 6849                        }
 6850                    }
 6851                    cx.propagate();
 6852                },
 6853            ))
 6854            .on_action(cx.listener(
 6855                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6856                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6857                        let dock = active_dock.read(cx);
 6858                        if let Some(active_panel) = dock.active_panel() {
 6859                            if active_panel.pane(cx).is_none() {
 6860                                let mut recent_pane: Option<Entity<Pane>> = None;
 6861                                let mut recent_timestamp = 0;
 6862                                for pane_handle in workspace.panes() {
 6863                                    let pane = pane_handle.read(cx);
 6864                                    for entry in pane.activation_history() {
 6865                                        if entry.timestamp > recent_timestamp {
 6866                                            recent_timestamp = entry.timestamp;
 6867                                            recent_pane = Some(pane_handle.clone());
 6868                                        }
 6869                                    }
 6870                                }
 6871
 6872                                if let Some(pane) = recent_pane {
 6873                                    pane.update(cx, |pane, cx| {
 6874                                        let current_index = pane.active_item_index();
 6875                                        let items_len = pane.items_len();
 6876                                        if items_len > 0 {
 6877                                            let prev_index = if current_index > 0 {
 6878                                                current_index - 1
 6879                                            } else {
 6880                                                items_len.saturating_sub(1)
 6881                                            };
 6882                                            pane.activate_item(
 6883                                                prev_index, false, false, window, cx,
 6884                                            );
 6885                                        }
 6886                                    });
 6887                                    return;
 6888                                }
 6889                            }
 6890                        }
 6891                    }
 6892                    cx.propagate();
 6893                },
 6894            ))
 6895            .on_action(cx.listener(
 6896                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6897                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6898                        let dock = active_dock.read(cx);
 6899                        if let Some(active_panel) = dock.active_panel() {
 6900                            if active_panel.pane(cx).is_none() {
 6901                                let active_pane = workspace.active_pane().clone();
 6902                                active_pane.update(cx, |pane, cx| {
 6903                                    pane.close_active_item(action, window, cx)
 6904                                        .detach_and_log_err(cx);
 6905                                });
 6906                                return;
 6907                            }
 6908                        }
 6909                    }
 6910                    cx.propagate();
 6911                },
 6912            ))
 6913            .on_action(
 6914                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6915                    let pane = workspace.active_pane().clone();
 6916                    if let Some(item) = pane.read(cx).active_item() {
 6917                        item.toggle_read_only(window, cx);
 6918                    }
 6919                }),
 6920            )
 6921            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 6922                workspace.focus_center_pane(window, cx);
 6923            }))
 6924            .on_action(cx.listener(Workspace::cancel))
 6925    }
 6926
 6927    #[cfg(any(test, feature = "test-support"))]
 6928    pub fn set_random_database_id(&mut self) {
 6929        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6930    }
 6931
 6932    #[cfg(any(test, feature = "test-support"))]
 6933    pub(crate) fn test_new(
 6934        project: Entity<Project>,
 6935        window: &mut Window,
 6936        cx: &mut Context<Self>,
 6937    ) -> Self {
 6938        use node_runtime::NodeRuntime;
 6939        use session::Session;
 6940
 6941        let client = project.read(cx).client();
 6942        let user_store = project.read(cx).user_store();
 6943        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6944        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6945        window.activate_window();
 6946        let app_state = Arc::new(AppState {
 6947            languages: project.read(cx).languages().clone(),
 6948            workspace_store,
 6949            client,
 6950            user_store,
 6951            fs: project.read(cx).fs().clone(),
 6952            build_window_options: |_, _| Default::default(),
 6953            node_runtime: NodeRuntime::unavailable(),
 6954            session,
 6955        });
 6956        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6957        workspace
 6958            .active_pane
 6959            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6960        workspace
 6961    }
 6962
 6963    pub fn register_action<A: Action>(
 6964        &mut self,
 6965        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6966    ) -> &mut Self {
 6967        let callback = Arc::new(callback);
 6968
 6969        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6970            let callback = callback.clone();
 6971            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6972                (callback)(workspace, event, window, cx)
 6973            }))
 6974        }));
 6975        self
 6976    }
 6977    pub fn register_action_renderer(
 6978        &mut self,
 6979        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6980    ) -> &mut Self {
 6981        self.workspace_actions.push(Box::new(callback));
 6982        self
 6983    }
 6984
 6985    fn add_workspace_actions_listeners(
 6986        &self,
 6987        mut div: Div,
 6988        window: &mut Window,
 6989        cx: &mut Context<Self>,
 6990    ) -> Div {
 6991        for action in self.workspace_actions.iter() {
 6992            div = (action)(div, self, window, cx)
 6993        }
 6994        div
 6995    }
 6996
 6997    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6998        self.modal_layer.read(cx).has_active_modal()
 6999    }
 7000
 7001    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7002        self.modal_layer
 7003            .read(cx)
 7004            .is_active_modal_command_palette(cx)
 7005    }
 7006
 7007    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7008        self.modal_layer.read(cx).active_modal()
 7009    }
 7010
 7011    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7012    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7013    /// If no modal is active, the new modal will be shown.
 7014    ///
 7015    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7016    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7017    /// will not be shown.
 7018    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7019    where
 7020        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7021    {
 7022        self.modal_layer.update(cx, |modal_layer, cx| {
 7023            modal_layer.toggle_modal(window, cx, build)
 7024        })
 7025    }
 7026
 7027    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7028        self.modal_layer
 7029            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7030    }
 7031
 7032    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7033        self.toast_layer
 7034            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7035    }
 7036
 7037    pub fn toggle_centered_layout(
 7038        &mut self,
 7039        _: &ToggleCenteredLayout,
 7040        _: &mut Window,
 7041        cx: &mut Context<Self>,
 7042    ) {
 7043        self.centered_layout = !self.centered_layout;
 7044        if let Some(database_id) = self.database_id() {
 7045            let db = WorkspaceDb::global(cx);
 7046            let centered_layout = self.centered_layout;
 7047            cx.background_spawn(async move {
 7048                db.set_centered_layout(database_id, centered_layout).await
 7049            })
 7050            .detach_and_log_err(cx);
 7051        }
 7052        cx.notify();
 7053    }
 7054
 7055    fn adjust_padding(padding: Option<f32>) -> f32 {
 7056        padding
 7057            .unwrap_or(CenteredPaddingSettings::default().0)
 7058            .clamp(
 7059                CenteredPaddingSettings::MIN_PADDING,
 7060                CenteredPaddingSettings::MAX_PADDING,
 7061            )
 7062    }
 7063
 7064    fn render_dock(
 7065        &self,
 7066        position: DockPosition,
 7067        dock: &Entity<Dock>,
 7068        window: &mut Window,
 7069        cx: &mut App,
 7070    ) -> Option<Div> {
 7071        if self.zoomed_position == Some(position) {
 7072            return None;
 7073        }
 7074
 7075        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7076            let pane = panel.pane(cx)?;
 7077            let follower_states = &self.follower_states;
 7078            leader_border_for_pane(follower_states, &pane, window, cx)
 7079        });
 7080
 7081        Some(
 7082            div()
 7083                .flex()
 7084                .flex_none()
 7085                .overflow_hidden()
 7086                .child(dock.clone())
 7087                .children(leader_border),
 7088        )
 7089    }
 7090
 7091    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7092        window
 7093            .root::<MultiWorkspace>()
 7094            .flatten()
 7095            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7096    }
 7097
 7098    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7099        self.zoomed.as_ref()
 7100    }
 7101
 7102    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7103        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7104            return;
 7105        };
 7106        let windows = cx.windows();
 7107        let next_window =
 7108            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7109                || {
 7110                    windows
 7111                        .iter()
 7112                        .cycle()
 7113                        .skip_while(|window| window.window_id() != current_window_id)
 7114                        .nth(1)
 7115                },
 7116            );
 7117
 7118        if let Some(window) = next_window {
 7119            window
 7120                .update(cx, |_, window, _| window.activate_window())
 7121                .ok();
 7122        }
 7123    }
 7124
 7125    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7126        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7127            return;
 7128        };
 7129        let windows = cx.windows();
 7130        let prev_window =
 7131            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7132                || {
 7133                    windows
 7134                        .iter()
 7135                        .rev()
 7136                        .cycle()
 7137                        .skip_while(|window| window.window_id() != current_window_id)
 7138                        .nth(1)
 7139                },
 7140            );
 7141
 7142        if let Some(window) = prev_window {
 7143            window
 7144                .update(cx, |_, window, _| window.activate_window())
 7145                .ok();
 7146        }
 7147    }
 7148
 7149    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7150        if cx.stop_active_drag(window) {
 7151        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7152            dismiss_app_notification(&notification_id, cx);
 7153        } else {
 7154            cx.propagate();
 7155        }
 7156    }
 7157
 7158    fn adjust_dock_size_by_px(
 7159        &mut self,
 7160        panel_size: Pixels,
 7161        dock_pos: DockPosition,
 7162        px: Pixels,
 7163        window: &mut Window,
 7164        cx: &mut Context<Self>,
 7165    ) {
 7166        match dock_pos {
 7167            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 7168            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 7169            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 7170        }
 7171    }
 7172
 7173    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7174        let workspace_width = self.bounds.size.width;
 7175        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7176
 7177        self.right_dock.read_with(cx, |right_dock, cx| {
 7178            let right_dock_size = right_dock
 7179                .active_panel_size(window, cx)
 7180                .unwrap_or(Pixels::ZERO);
 7181            if right_dock_size + size > workspace_width {
 7182                size = workspace_width - right_dock_size
 7183            }
 7184        });
 7185
 7186        self.left_dock.update(cx, |left_dock, cx| {
 7187            if WorkspaceSettings::get_global(cx)
 7188                .resize_all_panels_in_dock
 7189                .contains(&DockPosition::Left)
 7190            {
 7191                left_dock.resize_all_panels(Some(size), window, cx);
 7192            } else {
 7193                left_dock.resize_active_panel(Some(size), window, cx);
 7194            }
 7195        });
 7196    }
 7197
 7198    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7199        let workspace_width = self.bounds.size.width;
 7200        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7201        self.left_dock.read_with(cx, |left_dock, cx| {
 7202            let left_dock_size = left_dock
 7203                .active_panel_size(window, cx)
 7204                .unwrap_or(Pixels::ZERO);
 7205            if left_dock_size + size > workspace_width {
 7206                size = workspace_width - left_dock_size
 7207            }
 7208        });
 7209        self.right_dock.update(cx, |right_dock, cx| {
 7210            if WorkspaceSettings::get_global(cx)
 7211                .resize_all_panels_in_dock
 7212                .contains(&DockPosition::Right)
 7213            {
 7214                right_dock.resize_all_panels(Some(size), window, cx);
 7215            } else {
 7216                right_dock.resize_active_panel(Some(size), window, cx);
 7217            }
 7218        });
 7219    }
 7220
 7221    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7222        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7223        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7224            if WorkspaceSettings::get_global(cx)
 7225                .resize_all_panels_in_dock
 7226                .contains(&DockPosition::Bottom)
 7227            {
 7228                bottom_dock.resize_all_panels(Some(size), window, cx);
 7229            } else {
 7230                bottom_dock.resize_active_panel(Some(size), window, cx);
 7231            }
 7232        });
 7233    }
 7234
 7235    fn toggle_edit_predictions_all_files(
 7236        &mut self,
 7237        _: &ToggleEditPrediction,
 7238        _window: &mut Window,
 7239        cx: &mut Context<Self>,
 7240    ) {
 7241        let fs = self.project().read(cx).fs().clone();
 7242        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7243        update_settings_file(fs, cx, move |file, _| {
 7244            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7245        });
 7246    }
 7247
 7248    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7249        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7250        let next_mode = match current_mode {
 7251            Some(theme::ThemeAppearanceMode::Light) => theme::ThemeAppearanceMode::Dark,
 7252            Some(theme::ThemeAppearanceMode::Dark) => theme::ThemeAppearanceMode::Light,
 7253            Some(theme::ThemeAppearanceMode::System) | None => match cx.theme().appearance() {
 7254                theme::Appearance::Light => theme::ThemeAppearanceMode::Dark,
 7255                theme::Appearance::Dark => theme::ThemeAppearanceMode::Light,
 7256            },
 7257        };
 7258
 7259        let fs = self.project().read(cx).fs().clone();
 7260        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7261            theme::set_mode(settings, next_mode);
 7262        });
 7263    }
 7264
 7265    pub fn show_worktree_trust_security_modal(
 7266        &mut self,
 7267        toggle: bool,
 7268        window: &mut Window,
 7269        cx: &mut Context<Self>,
 7270    ) {
 7271        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7272            if toggle {
 7273                security_modal.update(cx, |security_modal, cx| {
 7274                    security_modal.dismiss(cx);
 7275                })
 7276            } else {
 7277                security_modal.update(cx, |security_modal, cx| {
 7278                    security_modal.refresh_restricted_paths(cx);
 7279                });
 7280            }
 7281        } else {
 7282            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7283                .map(|trusted_worktrees| {
 7284                    trusted_worktrees
 7285                        .read(cx)
 7286                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7287                })
 7288                .unwrap_or(false);
 7289            if has_restricted_worktrees {
 7290                let project = self.project().read(cx);
 7291                let remote_host = project
 7292                    .remote_connection_options(cx)
 7293                    .map(RemoteHostLocation::from);
 7294                let worktree_store = project.worktree_store().downgrade();
 7295                self.toggle_modal(window, cx, |_, cx| {
 7296                    SecurityModal::new(worktree_store, remote_host, cx)
 7297                });
 7298            }
 7299        }
 7300    }
 7301}
 7302
 7303pub trait AnyActiveCall {
 7304    fn entity(&self) -> AnyEntity;
 7305    fn is_in_room(&self, _: &App) -> bool;
 7306    fn room_id(&self, _: &App) -> Option<u64>;
 7307    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7308    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7309    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7310    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7311    fn is_sharing_project(&self, _: &App) -> bool;
 7312    fn has_remote_participants(&self, _: &App) -> bool;
 7313    fn local_participant_is_guest(&self, _: &App) -> bool;
 7314    fn client(&self, _: &App) -> Arc<Client>;
 7315    fn share_on_join(&self, _: &App) -> bool;
 7316    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7317    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7318    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7319    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7320    fn join_project(
 7321        &self,
 7322        _: u64,
 7323        _: Arc<LanguageRegistry>,
 7324        _: Arc<dyn Fs>,
 7325        _: &mut App,
 7326    ) -> Task<Result<Entity<Project>>>;
 7327    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7328    fn subscribe(
 7329        &self,
 7330        _: &mut Window,
 7331        _: &mut Context<Workspace>,
 7332        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7333    ) -> Subscription;
 7334    fn create_shared_screen(
 7335        &self,
 7336        _: PeerId,
 7337        _: &Entity<Pane>,
 7338        _: &mut Window,
 7339        _: &mut App,
 7340    ) -> Option<Entity<SharedScreen>>;
 7341}
 7342
 7343#[derive(Clone)]
 7344pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7345impl Global for GlobalAnyActiveCall {}
 7346
 7347impl GlobalAnyActiveCall {
 7348    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7349        cx.try_global()
 7350    }
 7351
 7352    pub(crate) fn global(cx: &App) -> &Self {
 7353        cx.global()
 7354    }
 7355}
 7356
 7357pub fn merge_conflict_notification_id() -> NotificationId {
 7358    struct MergeConflictNotification;
 7359    NotificationId::unique::<MergeConflictNotification>()
 7360}
 7361
 7362/// Workspace-local view of a remote participant's location.
 7363#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7364pub enum ParticipantLocation {
 7365    SharedProject { project_id: u64 },
 7366    UnsharedProject,
 7367    External,
 7368}
 7369
 7370impl ParticipantLocation {
 7371    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7372        match location
 7373            .and_then(|l| l.variant)
 7374            .context("participant location was not provided")?
 7375        {
 7376            proto::participant_location::Variant::SharedProject(project) => {
 7377                Ok(Self::SharedProject {
 7378                    project_id: project.id,
 7379                })
 7380            }
 7381            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7382            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7383        }
 7384    }
 7385}
 7386/// Workspace-local view of a remote collaborator's state.
 7387/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7388#[derive(Clone)]
 7389pub struct RemoteCollaborator {
 7390    pub user: Arc<User>,
 7391    pub peer_id: PeerId,
 7392    pub location: ParticipantLocation,
 7393    pub participant_index: ParticipantIndex,
 7394}
 7395
 7396pub enum ActiveCallEvent {
 7397    ParticipantLocationChanged { participant_id: PeerId },
 7398    RemoteVideoTracksChanged { participant_id: PeerId },
 7399}
 7400
 7401fn leader_border_for_pane(
 7402    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7403    pane: &Entity<Pane>,
 7404    _: &Window,
 7405    cx: &App,
 7406) -> Option<Div> {
 7407    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7408        if state.pane() == pane {
 7409            Some((*leader_id, state))
 7410        } else {
 7411            None
 7412        }
 7413    })?;
 7414
 7415    let mut leader_color = match leader_id {
 7416        CollaboratorId::PeerId(leader_peer_id) => {
 7417            let leader = GlobalAnyActiveCall::try_global(cx)?
 7418                .0
 7419                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7420
 7421            cx.theme()
 7422                .players()
 7423                .color_for_participant(leader.participant_index.0)
 7424                .cursor
 7425        }
 7426        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7427    };
 7428    leader_color.fade_out(0.3);
 7429    Some(
 7430        div()
 7431            .absolute()
 7432            .size_full()
 7433            .left_0()
 7434            .top_0()
 7435            .border_2()
 7436            .border_color(leader_color),
 7437    )
 7438}
 7439
 7440fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7441    ZED_WINDOW_POSITION
 7442        .zip(*ZED_WINDOW_SIZE)
 7443        .map(|(position, size)| Bounds {
 7444            origin: position,
 7445            size,
 7446        })
 7447}
 7448
 7449fn open_items(
 7450    serialized_workspace: Option<SerializedWorkspace>,
 7451    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7452    window: &mut Window,
 7453    cx: &mut Context<Workspace>,
 7454) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7455    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7456        Workspace::load_workspace(
 7457            serialized_workspace,
 7458            project_paths_to_open
 7459                .iter()
 7460                .map(|(_, project_path)| project_path)
 7461                .cloned()
 7462                .collect(),
 7463            window,
 7464            cx,
 7465        )
 7466    });
 7467
 7468    cx.spawn_in(window, async move |workspace, cx| {
 7469        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7470
 7471        if let Some(restored_items) = restored_items {
 7472            let restored_items = restored_items.await?;
 7473
 7474            let restored_project_paths = restored_items
 7475                .iter()
 7476                .filter_map(|item| {
 7477                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7478                        .ok()
 7479                        .flatten()
 7480                })
 7481                .collect::<HashSet<_>>();
 7482
 7483            for restored_item in restored_items {
 7484                opened_items.push(restored_item.map(Ok));
 7485            }
 7486
 7487            project_paths_to_open
 7488                .iter_mut()
 7489                .for_each(|(_, project_path)| {
 7490                    if let Some(project_path_to_open) = project_path
 7491                        && restored_project_paths.contains(project_path_to_open)
 7492                    {
 7493                        *project_path = None;
 7494                    }
 7495                });
 7496        } else {
 7497            for _ in 0..project_paths_to_open.len() {
 7498                opened_items.push(None);
 7499            }
 7500        }
 7501        assert!(opened_items.len() == project_paths_to_open.len());
 7502
 7503        let tasks =
 7504            project_paths_to_open
 7505                .into_iter()
 7506                .enumerate()
 7507                .map(|(ix, (abs_path, project_path))| {
 7508                    let workspace = workspace.clone();
 7509                    cx.spawn(async move |cx| {
 7510                        let file_project_path = project_path?;
 7511                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7512                            workspace.project().update(cx, |project, cx| {
 7513                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7514                            })
 7515                        });
 7516
 7517                        // We only want to open file paths here. If one of the items
 7518                        // here is a directory, it was already opened further above
 7519                        // with a `find_or_create_worktree`.
 7520                        if let Ok(task) = abs_path_task
 7521                            && task.await.is_none_or(|p| p.is_file())
 7522                        {
 7523                            return Some((
 7524                                ix,
 7525                                workspace
 7526                                    .update_in(cx, |workspace, window, cx| {
 7527                                        workspace.open_path(
 7528                                            file_project_path,
 7529                                            None,
 7530                                            true,
 7531                                            window,
 7532                                            cx,
 7533                                        )
 7534                                    })
 7535                                    .log_err()?
 7536                                    .await,
 7537                            ));
 7538                        }
 7539                        None
 7540                    })
 7541                });
 7542
 7543        let tasks = tasks.collect::<Vec<_>>();
 7544
 7545        let tasks = futures::future::join_all(tasks);
 7546        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7547            opened_items[ix] = Some(path_open_result);
 7548        }
 7549
 7550        Ok(opened_items)
 7551    })
 7552}
 7553
 7554#[derive(Clone)]
 7555enum ActivateInDirectionTarget {
 7556    Pane(Entity<Pane>),
 7557    Dock(Entity<Dock>),
 7558    Sidebar(FocusHandle),
 7559}
 7560
 7561fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7562    window
 7563        .update(cx, |multi_workspace, _, cx| {
 7564            let workspace = multi_workspace.workspace().clone();
 7565            workspace.update(cx, |workspace, cx| {
 7566                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7567                    struct DatabaseFailedNotification;
 7568
 7569                    workspace.show_notification(
 7570                        NotificationId::unique::<DatabaseFailedNotification>(),
 7571                        cx,
 7572                        |cx| {
 7573                            cx.new(|cx| {
 7574                                MessageNotification::new("Failed to load the database file.", cx)
 7575                                    .primary_message("File an Issue")
 7576                                    .primary_icon(IconName::Plus)
 7577                                    .primary_on_click(|window, cx| {
 7578                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7579                                    })
 7580                            })
 7581                        },
 7582                    );
 7583                }
 7584            });
 7585        })
 7586        .log_err();
 7587}
 7588
 7589fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7590    if val == 0 {
 7591        ThemeSettings::get_global(cx).ui_font_size(cx)
 7592    } else {
 7593        px(val as f32)
 7594    }
 7595}
 7596
 7597fn adjust_active_dock_size_by_px(
 7598    px: Pixels,
 7599    workspace: &mut Workspace,
 7600    window: &mut Window,
 7601    cx: &mut Context<Workspace>,
 7602) {
 7603    let Some(active_dock) = workspace
 7604        .all_docks()
 7605        .into_iter()
 7606        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7607    else {
 7608        return;
 7609    };
 7610    let dock = active_dock.read(cx);
 7611    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7612        return;
 7613    };
 7614    let dock_pos = dock.position();
 7615    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7616}
 7617
 7618fn adjust_open_docks_size_by_px(
 7619    px: Pixels,
 7620    workspace: &mut Workspace,
 7621    window: &mut Window,
 7622    cx: &mut Context<Workspace>,
 7623) {
 7624    let docks = workspace
 7625        .all_docks()
 7626        .into_iter()
 7627        .filter_map(|dock| {
 7628            if dock.read(cx).is_open() {
 7629                let dock = dock.read(cx);
 7630                let panel_size = dock.active_panel_size(window, cx)?;
 7631                let dock_pos = dock.position();
 7632                Some((panel_size, dock_pos, px))
 7633            } else {
 7634                None
 7635            }
 7636        })
 7637        .collect::<Vec<_>>();
 7638
 7639    docks
 7640        .into_iter()
 7641        .for_each(|(panel_size, dock_pos, offset)| {
 7642            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7643        });
 7644}
 7645
 7646impl Focusable for Workspace {
 7647    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7648        self.active_pane.focus_handle(cx)
 7649    }
 7650}
 7651
 7652#[derive(Clone)]
 7653struct DraggedDock(DockPosition);
 7654
 7655impl Render for DraggedDock {
 7656    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7657        gpui::Empty
 7658    }
 7659}
 7660
 7661impl Render for Workspace {
 7662    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7663        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7664        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7665            log::info!("Rendered first frame");
 7666        }
 7667
 7668        let centered_layout = self.centered_layout
 7669            && self.center.panes().len() == 1
 7670            && self.active_item(cx).is_some();
 7671        let render_padding = |size| {
 7672            (size > 0.0).then(|| {
 7673                div()
 7674                    .h_full()
 7675                    .w(relative(size))
 7676                    .bg(cx.theme().colors().editor_background)
 7677                    .border_color(cx.theme().colors().pane_group_border)
 7678            })
 7679        };
 7680        let paddings = if centered_layout {
 7681            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7682            (
 7683                render_padding(Self::adjust_padding(
 7684                    settings.left_padding.map(|padding| padding.0),
 7685                )),
 7686                render_padding(Self::adjust_padding(
 7687                    settings.right_padding.map(|padding| padding.0),
 7688                )),
 7689            )
 7690        } else {
 7691            (None, None)
 7692        };
 7693        let ui_font = theme::setup_ui_font(window, cx);
 7694
 7695        let theme = cx.theme().clone();
 7696        let colors = theme.colors();
 7697        let notification_entities = self
 7698            .notifications
 7699            .iter()
 7700            .map(|(_, notification)| notification.entity_id())
 7701            .collect::<Vec<_>>();
 7702        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7703
 7704        div()
 7705            .relative()
 7706            .size_full()
 7707            .flex()
 7708            .flex_col()
 7709            .font(ui_font)
 7710            .gap_0()
 7711                .justify_start()
 7712                .items_start()
 7713                .text_color(colors.text)
 7714                .overflow_hidden()
 7715                .children(self.titlebar_item.clone())
 7716                .on_modifiers_changed(move |_, _, cx| {
 7717                    for &id in &notification_entities {
 7718                        cx.notify(id);
 7719                    }
 7720                })
 7721                .child(
 7722                    div()
 7723                        .size_full()
 7724                        .relative()
 7725                        .flex_1()
 7726                        .flex()
 7727                        .flex_col()
 7728                        .child(
 7729                            div()
 7730                                .id("workspace")
 7731                                .bg(colors.background)
 7732                                .relative()
 7733                                .flex_1()
 7734                                .w_full()
 7735                                .flex()
 7736                                .flex_col()
 7737                                .overflow_hidden()
 7738                                .border_t_1()
 7739                                .border_b_1()
 7740                                .border_color(colors.border)
 7741                                .child({
 7742                                    let this = cx.entity();
 7743                                    canvas(
 7744                                        move |bounds, window, cx| {
 7745                                            this.update(cx, |this, cx| {
 7746                                                let bounds_changed = this.bounds != bounds;
 7747                                                this.bounds = bounds;
 7748
 7749                                                if bounds_changed {
 7750                                                    this.left_dock.update(cx, |dock, cx| {
 7751                                                        dock.clamp_panel_size(
 7752                                                            bounds.size.width,
 7753                                                            window,
 7754                                                            cx,
 7755                                                        )
 7756                                                    });
 7757
 7758                                                    this.right_dock.update(cx, |dock, cx| {
 7759                                                        dock.clamp_panel_size(
 7760                                                            bounds.size.width,
 7761                                                            window,
 7762                                                            cx,
 7763                                                        )
 7764                                                    });
 7765
 7766                                                    this.bottom_dock.update(cx, |dock, cx| {
 7767                                                        dock.clamp_panel_size(
 7768                                                            bounds.size.height,
 7769                                                            window,
 7770                                                            cx,
 7771                                                        )
 7772                                                    });
 7773                                                }
 7774                                            })
 7775                                        },
 7776                                        |_, _, _, _| {},
 7777                                    )
 7778                                    .absolute()
 7779                                    .size_full()
 7780                                })
 7781                                .when(self.zoomed.is_none(), |this| {
 7782                                    this.on_drag_move(cx.listener(
 7783                                        move |workspace,
 7784                                              e: &DragMoveEvent<DraggedDock>,
 7785                                              window,
 7786                                              cx| {
 7787                                            if workspace.previous_dock_drag_coordinates
 7788                                                != Some(e.event.position)
 7789                                            {
 7790                                                workspace.previous_dock_drag_coordinates =
 7791                                                    Some(e.event.position);
 7792
 7793                                                match e.drag(cx).0 {
 7794                                                    DockPosition::Left => {
 7795                                                        workspace.resize_left_dock(
 7796                                                            e.event.position.x
 7797                                                                - workspace.bounds.left(),
 7798                                                            window,
 7799                                                            cx,
 7800                                                        );
 7801                                                    }
 7802                                                    DockPosition::Right => {
 7803                                                        workspace.resize_right_dock(
 7804                                                            workspace.bounds.right()
 7805                                                                - e.event.position.x,
 7806                                                            window,
 7807                                                            cx,
 7808                                                        );
 7809                                                    }
 7810                                                    DockPosition::Bottom => {
 7811                                                        workspace.resize_bottom_dock(
 7812                                                            workspace.bounds.bottom()
 7813                                                                - e.event.position.y,
 7814                                                            window,
 7815                                                            cx,
 7816                                                        );
 7817                                                    }
 7818                                                };
 7819                                                workspace.serialize_workspace(window, cx);
 7820                                            }
 7821                                        },
 7822                                    ))
 7823
 7824                                })
 7825                                .child({
 7826                                    match bottom_dock_layout {
 7827                                        BottomDockLayout::Full => div()
 7828                                            .flex()
 7829                                            .flex_col()
 7830                                            .h_full()
 7831                                            .child(
 7832                                                div()
 7833                                                    .flex()
 7834                                                    .flex_row()
 7835                                                    .flex_1()
 7836                                                    .overflow_hidden()
 7837                                                    .children(self.render_dock(
 7838                                                        DockPosition::Left,
 7839                                                        &self.left_dock,
 7840                                                        window,
 7841                                                        cx,
 7842                                                    ))
 7843
 7844                                                    .child(
 7845                                                        div()
 7846                                                            .flex()
 7847                                                            .flex_col()
 7848                                                            .flex_1()
 7849                                                            .overflow_hidden()
 7850                                                            .child(
 7851                                                                h_flex()
 7852                                                                    .flex_1()
 7853                                                                    .when_some(
 7854                                                                        paddings.0,
 7855                                                                        |this, p| {
 7856                                                                            this.child(
 7857                                                                                p.border_r_1(),
 7858                                                                            )
 7859                                                                        },
 7860                                                                    )
 7861                                                                    .child(self.center.render(
 7862                                                                        self.zoomed.as_ref(),
 7863                                                                        &PaneRenderContext {
 7864                                                                            follower_states:
 7865                                                                                &self.follower_states,
 7866                                                                            active_call: self.active_call(),
 7867                                                                            active_pane: &self.active_pane,
 7868                                                                            app_state: &self.app_state,
 7869                                                                            project: &self.project,
 7870                                                                            workspace: &self.weak_self,
 7871                                                                        },
 7872                                                                        window,
 7873                                                                        cx,
 7874                                                                    ))
 7875                                                                    .when_some(
 7876                                                                        paddings.1,
 7877                                                                        |this, p| {
 7878                                                                            this.child(
 7879                                                                                p.border_l_1(),
 7880                                                                            )
 7881                                                                        },
 7882                                                                    ),
 7883                                                            ),
 7884                                                    )
 7885
 7886                                                    .children(self.render_dock(
 7887                                                        DockPosition::Right,
 7888                                                        &self.right_dock,
 7889                                                        window,
 7890                                                        cx,
 7891                                                    )),
 7892                                            )
 7893                                            .child(div().w_full().children(self.render_dock(
 7894                                                DockPosition::Bottom,
 7895                                                &self.bottom_dock,
 7896                                                window,
 7897                                                cx
 7898                                            ))),
 7899
 7900                                        BottomDockLayout::LeftAligned => div()
 7901                                            .flex()
 7902                                            .flex_row()
 7903                                            .h_full()
 7904                                            .child(
 7905                                                div()
 7906                                                    .flex()
 7907                                                    .flex_col()
 7908                                                    .flex_1()
 7909                                                    .h_full()
 7910                                                    .child(
 7911                                                        div()
 7912                                                            .flex()
 7913                                                            .flex_row()
 7914                                                            .flex_1()
 7915                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7916
 7917                                                            .child(
 7918                                                                div()
 7919                                                                    .flex()
 7920                                                                    .flex_col()
 7921                                                                    .flex_1()
 7922                                                                    .overflow_hidden()
 7923                                                                    .child(
 7924                                                                        h_flex()
 7925                                                                            .flex_1()
 7926                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7927                                                                            .child(self.center.render(
 7928                                                                                self.zoomed.as_ref(),
 7929                                                                                &PaneRenderContext {
 7930                                                                                    follower_states:
 7931                                                                                        &self.follower_states,
 7932                                                                                    active_call: self.active_call(),
 7933                                                                                    active_pane: &self.active_pane,
 7934                                                                                    app_state: &self.app_state,
 7935                                                                                    project: &self.project,
 7936                                                                                    workspace: &self.weak_self,
 7937                                                                                },
 7938                                                                                window,
 7939                                                                                cx,
 7940                                                                            ))
 7941                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7942                                                                    )
 7943                                                            )
 7944
 7945                                                    )
 7946                                                    .child(
 7947                                                        div()
 7948                                                            .w_full()
 7949                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7950                                                    ),
 7951                                            )
 7952                                            .children(self.render_dock(
 7953                                                DockPosition::Right,
 7954                                                &self.right_dock,
 7955                                                window,
 7956                                                cx,
 7957                                            )),
 7958                                        BottomDockLayout::RightAligned => div()
 7959                                            .flex()
 7960                                            .flex_row()
 7961                                            .h_full()
 7962                                            .children(self.render_dock(
 7963                                                DockPosition::Left,
 7964                                                &self.left_dock,
 7965                                                window,
 7966                                                cx,
 7967                                            ))
 7968
 7969                                            .child(
 7970                                                div()
 7971                                                    .flex()
 7972                                                    .flex_col()
 7973                                                    .flex_1()
 7974                                                    .h_full()
 7975                                                    .child(
 7976                                                        div()
 7977                                                            .flex()
 7978                                                            .flex_row()
 7979                                                            .flex_1()
 7980                                                            .child(
 7981                                                                div()
 7982                                                                    .flex()
 7983                                                                    .flex_col()
 7984                                                                    .flex_1()
 7985                                                                    .overflow_hidden()
 7986                                                                    .child(
 7987                                                                        h_flex()
 7988                                                                            .flex_1()
 7989                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7990                                                                            .child(self.center.render(
 7991                                                                                self.zoomed.as_ref(),
 7992                                                                                &PaneRenderContext {
 7993                                                                                    follower_states:
 7994                                                                                        &self.follower_states,
 7995                                                                                    active_call: self.active_call(),
 7996                                                                                    active_pane: &self.active_pane,
 7997                                                                                    app_state: &self.app_state,
 7998                                                                                    project: &self.project,
 7999                                                                                    workspace: &self.weak_self,
 8000                                                                                },
 8001                                                                                window,
 8002                                                                                cx,
 8003                                                                            ))
 8004                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8005                                                                    )
 8006                                                            )
 8007
 8008                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8009                                                    )
 8010                                                    .child(
 8011                                                        div()
 8012                                                            .w_full()
 8013                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8014                                                    ),
 8015                                            ),
 8016                                        BottomDockLayout::Contained => div()
 8017                                            .flex()
 8018                                            .flex_row()
 8019                                            .h_full()
 8020                                            .children(self.render_dock(
 8021                                                DockPosition::Left,
 8022                                                &self.left_dock,
 8023                                                window,
 8024                                                cx,
 8025                                            ))
 8026
 8027                                            .child(
 8028                                                div()
 8029                                                    .flex()
 8030                                                    .flex_col()
 8031                                                    .flex_1()
 8032                                                    .overflow_hidden()
 8033                                                    .child(
 8034                                                        h_flex()
 8035                                                            .flex_1()
 8036                                                            .when_some(paddings.0, |this, p| {
 8037                                                                this.child(p.border_r_1())
 8038                                                            })
 8039                                                            .child(self.center.render(
 8040                                                                self.zoomed.as_ref(),
 8041                                                                &PaneRenderContext {
 8042                                                                    follower_states:
 8043                                                                        &self.follower_states,
 8044                                                                    active_call: self.active_call(),
 8045                                                                    active_pane: &self.active_pane,
 8046                                                                    app_state: &self.app_state,
 8047                                                                    project: &self.project,
 8048                                                                    workspace: &self.weak_self,
 8049                                                                },
 8050                                                                window,
 8051                                                                cx,
 8052                                                            ))
 8053                                                            .when_some(paddings.1, |this, p| {
 8054                                                                this.child(p.border_l_1())
 8055                                                            }),
 8056                                                    )
 8057                                                    .children(self.render_dock(
 8058                                                        DockPosition::Bottom,
 8059                                                        &self.bottom_dock,
 8060                                                        window,
 8061                                                        cx,
 8062                                                    )),
 8063                                            )
 8064
 8065                                            .children(self.render_dock(
 8066                                                DockPosition::Right,
 8067                                                &self.right_dock,
 8068                                                window,
 8069                                                cx,
 8070                                            )),
 8071                                    }
 8072                                })
 8073                                .children(self.zoomed.as_ref().and_then(|view| {
 8074                                    let zoomed_view = view.upgrade()?;
 8075                                    let div = div()
 8076                                        .occlude()
 8077                                        .absolute()
 8078                                        .overflow_hidden()
 8079                                        .border_color(colors.border)
 8080                                        .bg(colors.background)
 8081                                        .child(zoomed_view)
 8082                                        .inset_0()
 8083                                        .shadow_lg();
 8084
 8085                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8086                                       return Some(div);
 8087                                    }
 8088
 8089                                    Some(match self.zoomed_position {
 8090                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8091                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8092                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8093                                        None => {
 8094                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8095                                        }
 8096                                    })
 8097                                }))
 8098                                .children(self.render_notifications(window, cx)),
 8099                        )
 8100                        .when(self.status_bar_visible(cx), |parent| {
 8101                            parent.child(self.status_bar.clone())
 8102                        })
 8103                        .child(self.toast_layer.clone()),
 8104                )
 8105    }
 8106}
 8107
 8108impl WorkspaceStore {
 8109    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8110        Self {
 8111            workspaces: Default::default(),
 8112            _subscriptions: vec![
 8113                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8114                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8115            ],
 8116            client,
 8117        }
 8118    }
 8119
 8120    pub fn update_followers(
 8121        &self,
 8122        project_id: Option<u64>,
 8123        update: proto::update_followers::Variant,
 8124        cx: &App,
 8125    ) -> Option<()> {
 8126        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8127        let room_id = active_call.0.room_id(cx)?;
 8128        self.client
 8129            .send(proto::UpdateFollowers {
 8130                room_id,
 8131                project_id,
 8132                variant: Some(update),
 8133            })
 8134            .log_err()
 8135    }
 8136
 8137    pub async fn handle_follow(
 8138        this: Entity<Self>,
 8139        envelope: TypedEnvelope<proto::Follow>,
 8140        mut cx: AsyncApp,
 8141    ) -> Result<proto::FollowResponse> {
 8142        this.update(&mut cx, |this, cx| {
 8143            let follower = Follower {
 8144                project_id: envelope.payload.project_id,
 8145                peer_id: envelope.original_sender_id()?,
 8146            };
 8147
 8148            let mut response = proto::FollowResponse::default();
 8149
 8150            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8151                let Some(workspace) = weak_workspace.upgrade() else {
 8152                    return false;
 8153                };
 8154                window_handle
 8155                    .update(cx, |_, window, cx| {
 8156                        workspace.update(cx, |workspace, cx| {
 8157                            let handler_response =
 8158                                workspace.handle_follow(follower.project_id, window, cx);
 8159                            if let Some(active_view) = handler_response.active_view
 8160                                && workspace.project.read(cx).remote_id() == follower.project_id
 8161                            {
 8162                                response.active_view = Some(active_view)
 8163                            }
 8164                        });
 8165                    })
 8166                    .is_ok()
 8167            });
 8168
 8169            Ok(response)
 8170        })
 8171    }
 8172
 8173    async fn handle_update_followers(
 8174        this: Entity<Self>,
 8175        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8176        mut cx: AsyncApp,
 8177    ) -> Result<()> {
 8178        let leader_id = envelope.original_sender_id()?;
 8179        let update = envelope.payload;
 8180
 8181        this.update(&mut cx, |this, cx| {
 8182            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8183                let Some(workspace) = weak_workspace.upgrade() else {
 8184                    return false;
 8185                };
 8186                window_handle
 8187                    .update(cx, |_, window, cx| {
 8188                        workspace.update(cx, |workspace, cx| {
 8189                            let project_id = workspace.project.read(cx).remote_id();
 8190                            if update.project_id != project_id && update.project_id.is_some() {
 8191                                return;
 8192                            }
 8193                            workspace.handle_update_followers(
 8194                                leader_id,
 8195                                update.clone(),
 8196                                window,
 8197                                cx,
 8198                            );
 8199                        });
 8200                    })
 8201                    .is_ok()
 8202            });
 8203            Ok(())
 8204        })
 8205    }
 8206
 8207    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8208        self.workspaces.iter().map(|(_, weak)| weak)
 8209    }
 8210
 8211    pub fn workspaces_with_windows(
 8212        &self,
 8213    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8214        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8215    }
 8216}
 8217
 8218impl ViewId {
 8219    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8220        Ok(Self {
 8221            creator: message
 8222                .creator
 8223                .map(CollaboratorId::PeerId)
 8224                .context("creator is missing")?,
 8225            id: message.id,
 8226        })
 8227    }
 8228
 8229    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8230        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8231            Some(proto::ViewId {
 8232                creator: Some(peer_id),
 8233                id: self.id,
 8234            })
 8235        } else {
 8236            None
 8237        }
 8238    }
 8239}
 8240
 8241impl FollowerState {
 8242    fn pane(&self) -> &Entity<Pane> {
 8243        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8244    }
 8245}
 8246
 8247pub trait WorkspaceHandle {
 8248    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8249}
 8250
 8251impl WorkspaceHandle for Entity<Workspace> {
 8252    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8253        self.read(cx)
 8254            .worktrees(cx)
 8255            .flat_map(|worktree| {
 8256                let worktree_id = worktree.read(cx).id();
 8257                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8258                    worktree_id,
 8259                    path: f.path.clone(),
 8260                })
 8261            })
 8262            .collect::<Vec<_>>()
 8263    }
 8264}
 8265
 8266pub async fn last_opened_workspace_location(
 8267    db: &WorkspaceDb,
 8268    fs: &dyn fs::Fs,
 8269) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8270    db.last_workspace(fs)
 8271        .await
 8272        .log_err()
 8273        .flatten()
 8274        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8275}
 8276
 8277pub async fn last_session_workspace_locations(
 8278    db: &WorkspaceDb,
 8279    last_session_id: &str,
 8280    last_session_window_stack: Option<Vec<WindowId>>,
 8281    fs: &dyn fs::Fs,
 8282) -> Option<Vec<SessionWorkspace>> {
 8283    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8284        .await
 8285        .log_err()
 8286}
 8287
 8288pub struct MultiWorkspaceRestoreResult {
 8289    pub window_handle: WindowHandle<MultiWorkspace>,
 8290    pub errors: Vec<anyhow::Error>,
 8291}
 8292
 8293pub async fn restore_multiworkspace(
 8294    multi_workspace: SerializedMultiWorkspace,
 8295    app_state: Arc<AppState>,
 8296    cx: &mut AsyncApp,
 8297) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 8298    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 8299    let mut group_iter = workspaces.into_iter();
 8300    let first = group_iter
 8301        .next()
 8302        .context("window group must not be empty")?;
 8303
 8304    let window_handle = if first.paths.is_empty() {
 8305        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8306            .await?
 8307    } else {
 8308        let OpenResult { window, .. } = cx
 8309            .update(|cx| {
 8310                Workspace::new_local(
 8311                    first.paths.paths().to_vec(),
 8312                    app_state.clone(),
 8313                    None,
 8314                    None,
 8315                    None,
 8316                    true,
 8317                    cx,
 8318                )
 8319            })
 8320            .await?;
 8321        window
 8322    };
 8323
 8324    let mut errors = Vec::new();
 8325
 8326    for session_workspace in group_iter {
 8327        let error = if session_workspace.paths.is_empty() {
 8328            cx.update(|cx| {
 8329                open_workspace_by_id(
 8330                    session_workspace.workspace_id,
 8331                    app_state.clone(),
 8332                    Some(window_handle),
 8333                    cx,
 8334                )
 8335            })
 8336            .await
 8337            .err()
 8338        } else {
 8339            cx.update(|cx| {
 8340                Workspace::new_local(
 8341                    session_workspace.paths.paths().to_vec(),
 8342                    app_state.clone(),
 8343                    Some(window_handle),
 8344                    None,
 8345                    None,
 8346                    false,
 8347                    cx,
 8348                )
 8349            })
 8350            .await
 8351            .err()
 8352        };
 8353
 8354        if let Some(error) = error {
 8355            errors.push(error);
 8356        }
 8357    }
 8358
 8359    if let Some(target_id) = state.active_workspace_id {
 8360        window_handle
 8361            .update(cx, |multi_workspace, window, cx| {
 8362                let target_index = multi_workspace
 8363                    .workspaces()
 8364                    .iter()
 8365                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8366                if let Some(index) = target_index {
 8367                    multi_workspace.activate_index(index, window, cx);
 8368                } else if !multi_workspace.workspaces().is_empty() {
 8369                    multi_workspace.activate_index(0, window, cx);
 8370                }
 8371            })
 8372            .ok();
 8373    } else {
 8374        window_handle
 8375            .update(cx, |multi_workspace, window, cx| {
 8376                if !multi_workspace.workspaces().is_empty() {
 8377                    multi_workspace.activate_index(0, window, cx);
 8378                }
 8379            })
 8380            .ok();
 8381    }
 8382
 8383    if state.sidebar_open {
 8384        window_handle
 8385            .update(cx, |multi_workspace, _, cx| {
 8386                multi_workspace.open_sidebar(cx);
 8387            })
 8388            .ok();
 8389    }
 8390
 8391    window_handle
 8392        .update(cx, |_, window, _cx| {
 8393            window.activate_window();
 8394        })
 8395        .ok();
 8396
 8397    Ok(MultiWorkspaceRestoreResult {
 8398        window_handle,
 8399        errors,
 8400    })
 8401}
 8402
 8403actions!(
 8404    collab,
 8405    [
 8406        /// Opens the channel notes for the current call.
 8407        ///
 8408        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8409        /// channel in the collab panel.
 8410        ///
 8411        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8412        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8413        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8414        OpenChannelNotes,
 8415        /// Mutes your microphone.
 8416        Mute,
 8417        /// Deafens yourself (mute both microphone and speakers).
 8418        Deafen,
 8419        /// Leaves the current call.
 8420        LeaveCall,
 8421        /// Shares the current project with collaborators.
 8422        ShareProject,
 8423        /// Shares your screen with collaborators.
 8424        ScreenShare,
 8425        /// Copies the current room name and session id for debugging purposes.
 8426        CopyRoomId,
 8427    ]
 8428);
 8429
 8430/// Opens the channel notes for a specific channel by its ID.
 8431#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8432#[action(namespace = collab)]
 8433#[serde(deny_unknown_fields)]
 8434pub struct OpenChannelNotesById {
 8435    pub channel_id: u64,
 8436}
 8437
 8438actions!(
 8439    zed,
 8440    [
 8441        /// Opens the Zed log file.
 8442        OpenLog,
 8443        /// Reveals the Zed log file in the system file manager.
 8444        RevealLogInFileManager
 8445    ]
 8446);
 8447
 8448async fn join_channel_internal(
 8449    channel_id: ChannelId,
 8450    app_state: &Arc<AppState>,
 8451    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8452    requesting_workspace: Option<WeakEntity<Workspace>>,
 8453    active_call: &dyn AnyActiveCall,
 8454    cx: &mut AsyncApp,
 8455) -> Result<bool> {
 8456    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8457        if !active_call.is_in_room(cx) {
 8458            return (false, false);
 8459        }
 8460
 8461        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8462        let should_prompt = active_call.is_sharing_project(cx)
 8463            && active_call.has_remote_participants(cx)
 8464            && !already_in_channel;
 8465        (should_prompt, already_in_channel)
 8466    });
 8467
 8468    if already_in_channel {
 8469        let task = cx.update(|cx| {
 8470            if let Some((project, host)) = active_call.most_active_project(cx) {
 8471                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8472            } else {
 8473                None
 8474            }
 8475        });
 8476        if let Some(task) = task {
 8477            task.await?;
 8478        }
 8479        return anyhow::Ok(true);
 8480    }
 8481
 8482    if should_prompt {
 8483        if let Some(multi_workspace) = requesting_window {
 8484            let answer = multi_workspace
 8485                .update(cx, |_, window, cx| {
 8486                    window.prompt(
 8487                        PromptLevel::Warning,
 8488                        "Do you want to switch channels?",
 8489                        Some("Leaving this call will unshare your current project."),
 8490                        &["Yes, Join Channel", "Cancel"],
 8491                        cx,
 8492                    )
 8493                })?
 8494                .await;
 8495
 8496            if answer == Ok(1) {
 8497                return Ok(false);
 8498            }
 8499        } else {
 8500            return Ok(false);
 8501        }
 8502    }
 8503
 8504    let client = cx.update(|cx| active_call.client(cx));
 8505
 8506    let mut client_status = client.status();
 8507
 8508    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8509    'outer: loop {
 8510        let Some(status) = client_status.recv().await else {
 8511            anyhow::bail!("error connecting");
 8512        };
 8513
 8514        match status {
 8515            Status::Connecting
 8516            | Status::Authenticating
 8517            | Status::Authenticated
 8518            | Status::Reconnecting
 8519            | Status::Reauthenticating
 8520            | Status::Reauthenticated => continue,
 8521            Status::Connected { .. } => break 'outer,
 8522            Status::SignedOut | Status::AuthenticationError => {
 8523                return Err(ErrorCode::SignedOut.into());
 8524            }
 8525            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8526            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8527                return Err(ErrorCode::Disconnected.into());
 8528            }
 8529        }
 8530    }
 8531
 8532    let joined = cx
 8533        .update(|cx| active_call.join_channel(channel_id, cx))
 8534        .await?;
 8535
 8536    if !joined {
 8537        return anyhow::Ok(true);
 8538    }
 8539
 8540    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8541
 8542    let task = cx.update(|cx| {
 8543        if let Some((project, host)) = active_call.most_active_project(cx) {
 8544            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8545        }
 8546
 8547        // If you are the first to join a channel, see if you should share your project.
 8548        if !active_call.has_remote_participants(cx)
 8549            && !active_call.local_participant_is_guest(cx)
 8550            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8551        {
 8552            let project = workspace.update(cx, |workspace, cx| {
 8553                let project = workspace.project.read(cx);
 8554
 8555                if !active_call.share_on_join(cx) {
 8556                    return None;
 8557                }
 8558
 8559                if (project.is_local() || project.is_via_remote_server())
 8560                    && project.visible_worktrees(cx).any(|tree| {
 8561                        tree.read(cx)
 8562                            .root_entry()
 8563                            .is_some_and(|entry| entry.is_dir())
 8564                    })
 8565                {
 8566                    Some(workspace.project.clone())
 8567                } else {
 8568                    None
 8569                }
 8570            });
 8571            if let Some(project) = project {
 8572                let share_task = active_call.share_project(project, cx);
 8573                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8574                    share_task.await?;
 8575                    Ok(())
 8576                }));
 8577            }
 8578        }
 8579
 8580        None
 8581    });
 8582    if let Some(task) = task {
 8583        task.await?;
 8584        return anyhow::Ok(true);
 8585    }
 8586    anyhow::Ok(false)
 8587}
 8588
 8589pub fn join_channel(
 8590    channel_id: ChannelId,
 8591    app_state: Arc<AppState>,
 8592    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8593    requesting_workspace: Option<WeakEntity<Workspace>>,
 8594    cx: &mut App,
 8595) -> Task<Result<()>> {
 8596    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8597    cx.spawn(async move |cx| {
 8598        let result = join_channel_internal(
 8599            channel_id,
 8600            &app_state,
 8601            requesting_window,
 8602            requesting_workspace,
 8603            &*active_call.0,
 8604            cx,
 8605        )
 8606        .await;
 8607
 8608        // join channel succeeded, and opened a window
 8609        if matches!(result, Ok(true)) {
 8610            return anyhow::Ok(());
 8611        }
 8612
 8613        // find an existing workspace to focus and show call controls
 8614        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8615        if active_window.is_none() {
 8616            // no open workspaces, make one to show the error in (blergh)
 8617            let OpenResult {
 8618                window: window_handle,
 8619                ..
 8620            } = cx
 8621                .update(|cx| {
 8622                    Workspace::new_local(
 8623                        vec![],
 8624                        app_state.clone(),
 8625                        requesting_window,
 8626                        None,
 8627                        None,
 8628                        true,
 8629                        cx,
 8630                    )
 8631                })
 8632                .await?;
 8633
 8634            window_handle
 8635                .update(cx, |_, window, _cx| {
 8636                    window.activate_window();
 8637                })
 8638                .ok();
 8639
 8640            if result.is_ok() {
 8641                cx.update(|cx| {
 8642                    cx.dispatch_action(&OpenChannelNotes);
 8643                });
 8644            }
 8645
 8646            active_window = Some(window_handle);
 8647        }
 8648
 8649        if let Err(err) = result {
 8650            log::error!("failed to join channel: {}", err);
 8651            if let Some(active_window) = active_window {
 8652                active_window
 8653                    .update(cx, |_, window, cx| {
 8654                        let detail: SharedString = match err.error_code() {
 8655                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8656                            ErrorCode::UpgradeRequired => concat!(
 8657                                "Your are running an unsupported version of Zed. ",
 8658                                "Please update to continue."
 8659                            )
 8660                            .into(),
 8661                            ErrorCode::NoSuchChannel => concat!(
 8662                                "No matching channel was found. ",
 8663                                "Please check the link and try again."
 8664                            )
 8665                            .into(),
 8666                            ErrorCode::Forbidden => concat!(
 8667                                "This channel is private, and you do not have access. ",
 8668                                "Please ask someone to add you and try again."
 8669                            )
 8670                            .into(),
 8671                            ErrorCode::Disconnected => {
 8672                                "Please check your internet connection and try again.".into()
 8673                            }
 8674                            _ => format!("{}\n\nPlease try again.", err).into(),
 8675                        };
 8676                        window.prompt(
 8677                            PromptLevel::Critical,
 8678                            "Failed to join channel",
 8679                            Some(&detail),
 8680                            &["Ok"],
 8681                            cx,
 8682                        )
 8683                    })?
 8684                    .await
 8685                    .ok();
 8686            }
 8687        }
 8688
 8689        // return ok, we showed the error to the user.
 8690        anyhow::Ok(())
 8691    })
 8692}
 8693
 8694pub async fn get_any_active_multi_workspace(
 8695    app_state: Arc<AppState>,
 8696    mut cx: AsyncApp,
 8697) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8698    // find an existing workspace to focus and show call controls
 8699    let active_window = activate_any_workspace_window(&mut cx);
 8700    if active_window.is_none() {
 8701        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, true, cx))
 8702            .await?;
 8703    }
 8704    activate_any_workspace_window(&mut cx).context("could not open zed")
 8705}
 8706
 8707fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8708    cx.update(|cx| {
 8709        if let Some(workspace_window) = cx
 8710            .active_window()
 8711            .and_then(|window| window.downcast::<MultiWorkspace>())
 8712        {
 8713            return Some(workspace_window);
 8714        }
 8715
 8716        for window in cx.windows() {
 8717            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8718                workspace_window
 8719                    .update(cx, |_, window, _| window.activate_window())
 8720                    .ok();
 8721                return Some(workspace_window);
 8722            }
 8723        }
 8724        None
 8725    })
 8726}
 8727
 8728pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8729    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 8730}
 8731
 8732pub fn workspace_windows_for_location(
 8733    serialized_location: &SerializedWorkspaceLocation,
 8734    cx: &App,
 8735) -> Vec<WindowHandle<MultiWorkspace>> {
 8736    cx.windows()
 8737        .into_iter()
 8738        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8739        .filter(|multi_workspace| {
 8740            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 8741                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 8742                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 8743                }
 8744                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 8745                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 8746                    a.distro_name == b.distro_name
 8747                }
 8748                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 8749                    a.container_id == b.container_id
 8750                }
 8751                #[cfg(any(test, feature = "test-support"))]
 8752                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 8753                    a.id == b.id
 8754                }
 8755                _ => false,
 8756            };
 8757
 8758            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8759                multi_workspace.workspaces().iter().any(|workspace| {
 8760                    match workspace.read(cx).workspace_location(cx) {
 8761                        WorkspaceLocation::Location(location, _) => {
 8762                            match (&location, serialized_location) {
 8763                                (
 8764                                    SerializedWorkspaceLocation::Local,
 8765                                    SerializedWorkspaceLocation::Local,
 8766                                ) => true,
 8767                                (
 8768                                    SerializedWorkspaceLocation::Remote(a),
 8769                                    SerializedWorkspaceLocation::Remote(b),
 8770                                ) => same_host(a, b),
 8771                                _ => false,
 8772                            }
 8773                        }
 8774                        _ => false,
 8775                    }
 8776                })
 8777            })
 8778        })
 8779        .collect()
 8780}
 8781
 8782pub async fn find_existing_workspace(
 8783    abs_paths: &[PathBuf],
 8784    open_options: &OpenOptions,
 8785    location: &SerializedWorkspaceLocation,
 8786    cx: &mut AsyncApp,
 8787) -> (
 8788    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 8789    OpenVisible,
 8790) {
 8791    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 8792    let mut open_visible = OpenVisible::All;
 8793    let mut best_match = None;
 8794
 8795    if open_options.open_new_workspace != Some(true) {
 8796        cx.update(|cx| {
 8797            for window in workspace_windows_for_location(location, cx) {
 8798                if let Ok(multi_workspace) = window.read(cx) {
 8799                    for workspace in multi_workspace.workspaces() {
 8800                        let project = workspace.read(cx).project.read(cx);
 8801                        let m = project.visibility_for_paths(
 8802                            abs_paths,
 8803                            open_options.open_new_workspace == None,
 8804                            cx,
 8805                        );
 8806                        if m > best_match {
 8807                            existing = Some((window, workspace.clone()));
 8808                            best_match = m;
 8809                        } else if best_match.is_none()
 8810                            && open_options.open_new_workspace == Some(false)
 8811                        {
 8812                            existing = Some((window, workspace.clone()))
 8813                        }
 8814                    }
 8815                }
 8816            }
 8817        });
 8818
 8819        let all_paths_are_files = existing
 8820            .as_ref()
 8821            .and_then(|(_, target_workspace)| {
 8822                cx.update(|cx| {
 8823                    let workspace = target_workspace.read(cx);
 8824                    let project = workspace.project.read(cx);
 8825                    let path_style = workspace.path_style(cx);
 8826                    Some(!abs_paths.iter().any(|path| {
 8827                        let path = util::paths::SanitizedPath::new(path);
 8828                        project.worktrees(cx).any(|worktree| {
 8829                            let worktree = worktree.read(cx);
 8830                            let abs_path = worktree.abs_path();
 8831                            path_style
 8832                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 8833                                .and_then(|rel| worktree.entry_for_path(&rel))
 8834                                .is_some_and(|e| e.is_dir())
 8835                        })
 8836                    }))
 8837                })
 8838            })
 8839            .unwrap_or(false);
 8840
 8841        if open_options.open_new_workspace.is_none()
 8842            && existing.is_some()
 8843            && open_options.wait
 8844            && all_paths_are_files
 8845        {
 8846            cx.update(|cx| {
 8847                let windows = workspace_windows_for_location(location, cx);
 8848                let window = cx
 8849                    .active_window()
 8850                    .and_then(|window| window.downcast::<MultiWorkspace>())
 8851                    .filter(|window| windows.contains(window))
 8852                    .or_else(|| windows.into_iter().next());
 8853                if let Some(window) = window {
 8854                    if let Ok(multi_workspace) = window.read(cx) {
 8855                        let active_workspace = multi_workspace.workspace().clone();
 8856                        existing = Some((window, active_workspace));
 8857                        open_visible = OpenVisible::None;
 8858                    }
 8859                }
 8860            });
 8861        }
 8862    }
 8863    (existing, open_visible)
 8864}
 8865
 8866#[derive(Default, Clone)]
 8867pub struct OpenOptions {
 8868    pub visible: Option<OpenVisible>,
 8869    pub focus: Option<bool>,
 8870    pub open_new_workspace: Option<bool>,
 8871    pub wait: bool,
 8872    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 8873    pub env: Option<HashMap<String, String>>,
 8874}
 8875
 8876/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 8877/// or [`Workspace::open_workspace_for_paths`].
 8878pub struct OpenResult {
 8879    pub window: WindowHandle<MultiWorkspace>,
 8880    pub workspace: Entity<Workspace>,
 8881    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8882}
 8883
 8884/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 8885pub fn open_workspace_by_id(
 8886    workspace_id: WorkspaceId,
 8887    app_state: Arc<AppState>,
 8888    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8889    cx: &mut App,
 8890) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 8891    let project_handle = Project::local(
 8892        app_state.client.clone(),
 8893        app_state.node_runtime.clone(),
 8894        app_state.user_store.clone(),
 8895        app_state.languages.clone(),
 8896        app_state.fs.clone(),
 8897        None,
 8898        project::LocalProjectFlags {
 8899            init_worktree_trust: true,
 8900            ..project::LocalProjectFlags::default()
 8901        },
 8902        cx,
 8903    );
 8904
 8905    let db = WorkspaceDb::global(cx);
 8906    let kvp = db::kvp::KeyValueStore::global(cx);
 8907    cx.spawn(async move |cx| {
 8908        let serialized_workspace = db
 8909            .workspace_for_id(workspace_id)
 8910            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 8911
 8912        let centered_layout = serialized_workspace.centered_layout;
 8913
 8914        let (window, workspace) = if let Some(window) = requesting_window {
 8915            let workspace = window.update(cx, |multi_workspace, window, cx| {
 8916                let workspace = cx.new(|cx| {
 8917                    let mut workspace = Workspace::new(
 8918                        Some(workspace_id),
 8919                        project_handle.clone(),
 8920                        app_state.clone(),
 8921                        window,
 8922                        cx,
 8923                    );
 8924                    workspace.centered_layout = centered_layout;
 8925                    workspace
 8926                });
 8927                multi_workspace.add_workspace(workspace.clone(), cx);
 8928                workspace
 8929            })?;
 8930            (window, workspace)
 8931        } else {
 8932            let window_bounds_override = window_bounds_env_override();
 8933
 8934            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 8935                (Some(WindowBounds::Windowed(bounds)), None)
 8936            } else if let Some(display) = serialized_workspace.display
 8937                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 8938            {
 8939                (Some(bounds.0), Some(display))
 8940            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 8941                (Some(bounds), Some(display))
 8942            } else {
 8943                (None, None)
 8944            };
 8945
 8946            let options = cx.update(|cx| {
 8947                let mut options = (app_state.build_window_options)(display, cx);
 8948                options.window_bounds = window_bounds;
 8949                options
 8950            });
 8951
 8952            let window = cx.open_window(options, {
 8953                let app_state = app_state.clone();
 8954                let project_handle = project_handle.clone();
 8955                move |window, cx| {
 8956                    let workspace = cx.new(|cx| {
 8957                        let mut workspace = Workspace::new(
 8958                            Some(workspace_id),
 8959                            project_handle,
 8960                            app_state,
 8961                            window,
 8962                            cx,
 8963                        );
 8964                        workspace.centered_layout = centered_layout;
 8965                        workspace
 8966                    });
 8967                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 8968                }
 8969            })?;
 8970
 8971            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 8972                multi_workspace.workspace().clone()
 8973            })?;
 8974
 8975            (window, workspace)
 8976        };
 8977
 8978        notify_if_database_failed(window, cx);
 8979
 8980        // Restore items from the serialized workspace
 8981        window
 8982            .update(cx, |_, window, cx| {
 8983                workspace.update(cx, |_workspace, cx| {
 8984                    open_items(Some(serialized_workspace), vec![], window, cx)
 8985                })
 8986            })?
 8987            .await?;
 8988
 8989        window.update(cx, |_, window, cx| {
 8990            workspace.update(cx, |workspace, cx| {
 8991                workspace.serialize_workspace(window, cx);
 8992            });
 8993        })?;
 8994
 8995        Ok(window)
 8996    })
 8997}
 8998
 8999#[allow(clippy::type_complexity)]
 9000pub fn open_paths(
 9001    abs_paths: &[PathBuf],
 9002    app_state: Arc<AppState>,
 9003    open_options: OpenOptions,
 9004    cx: &mut App,
 9005) -> Task<anyhow::Result<OpenResult>> {
 9006    let abs_paths = abs_paths.to_vec();
 9007    #[cfg(target_os = "windows")]
 9008    let wsl_path = abs_paths
 9009        .iter()
 9010        .find_map(|p| util::paths::WslPath::from_path(p));
 9011
 9012    cx.spawn(async move |cx| {
 9013        let (mut existing, mut open_visible) = find_existing_workspace(
 9014            &abs_paths,
 9015            &open_options,
 9016            &SerializedWorkspaceLocation::Local,
 9017            cx,
 9018        )
 9019        .await;
 9020
 9021        // Fallback: if no workspace contains the paths and all paths are files,
 9022        // prefer an existing local workspace window (active window first).
 9023        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9024            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9025            let all_metadatas = futures::future::join_all(all_paths)
 9026                .await
 9027                .into_iter()
 9028                .filter_map(|result| result.ok().flatten())
 9029                .collect::<Vec<_>>();
 9030
 9031            if all_metadatas.iter().all(|file| !file.is_dir) {
 9032                cx.update(|cx| {
 9033                    let windows = workspace_windows_for_location(
 9034                        &SerializedWorkspaceLocation::Local,
 9035                        cx,
 9036                    );
 9037                    let window = cx
 9038                        .active_window()
 9039                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9040                        .filter(|window| windows.contains(window))
 9041                        .or_else(|| windows.into_iter().next());
 9042                    if let Some(window) = window {
 9043                        if let Ok(multi_workspace) = window.read(cx) {
 9044                            let active_workspace = multi_workspace.workspace().clone();
 9045                            existing = Some((window, active_workspace));
 9046                            open_visible = OpenVisible::None;
 9047                        }
 9048                    }
 9049                });
 9050            }
 9051        }
 9052
 9053        let result = if let Some((existing, target_workspace)) = existing {
 9054            let open_task = existing
 9055                .update(cx, |multi_workspace, window, cx| {
 9056                    window.activate_window();
 9057                    multi_workspace.activate(target_workspace.clone(), cx);
 9058                    target_workspace.update(cx, |workspace, cx| {
 9059                        workspace.open_paths(
 9060                            abs_paths,
 9061                            OpenOptions {
 9062                                visible: Some(open_visible),
 9063                                ..Default::default()
 9064                            },
 9065                            None,
 9066                            window,
 9067                            cx,
 9068                        )
 9069                    })
 9070                })?
 9071                .await;
 9072
 9073            _ = existing.update(cx, |multi_workspace, _, cx| {
 9074                let workspace = multi_workspace.workspace().clone();
 9075                workspace.update(cx, |workspace, cx| {
 9076                    for item in open_task.iter().flatten() {
 9077                        if let Err(e) = item {
 9078                            workspace.show_error(&e, cx);
 9079                        }
 9080                    }
 9081                });
 9082            });
 9083
 9084            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9085        } else {
 9086            let result = cx
 9087                .update(move |cx| {
 9088                    Workspace::new_local(
 9089                        abs_paths,
 9090                        app_state.clone(),
 9091                        open_options.replace_window,
 9092                        open_options.env,
 9093                        None,
 9094                        true,
 9095                        cx,
 9096                    )
 9097                })
 9098                .await;
 9099
 9100            if let Ok(ref result) = result {
 9101                result.window
 9102                    .update(cx, |_, window, _cx| {
 9103                        window.activate_window();
 9104                    })
 9105                    .log_err();
 9106            }
 9107
 9108            result
 9109        };
 9110
 9111        #[cfg(target_os = "windows")]
 9112        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9113            && let Ok(ref result) = result
 9114        {
 9115            result.window
 9116                .update(cx, move |multi_workspace, _window, cx| {
 9117                    struct OpenInWsl;
 9118                    let workspace = multi_workspace.workspace().clone();
 9119                    workspace.update(cx, |workspace, cx| {
 9120                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9121                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9122                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9123                            cx.new(move |cx| {
 9124                                MessageNotification::new(msg, cx)
 9125                                    .primary_message("Open in WSL")
 9126                                    .primary_icon(IconName::FolderOpen)
 9127                                    .primary_on_click(move |window, cx| {
 9128                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9129                                                distro: remote::WslConnectionOptions {
 9130                                                        distro_name: distro.clone(),
 9131                                                    user: None,
 9132                                                },
 9133                                                paths: vec![path.clone().into()],
 9134                                            }), cx)
 9135                                    })
 9136                            })
 9137                        });
 9138                    });
 9139                })
 9140                .unwrap();
 9141        };
 9142        result
 9143    })
 9144}
 9145
 9146pub fn open_new(
 9147    open_options: OpenOptions,
 9148    app_state: Arc<AppState>,
 9149    cx: &mut App,
 9150    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9151) -> Task<anyhow::Result<()>> {
 9152    let task = Workspace::new_local(
 9153        Vec::new(),
 9154        app_state,
 9155        open_options.replace_window,
 9156        open_options.env,
 9157        Some(Box::new(init)),
 9158        true,
 9159        cx,
 9160    );
 9161    cx.spawn(async move |cx| {
 9162        let OpenResult { window, .. } = task.await?;
 9163        window
 9164            .update(cx, |_, window, _cx| {
 9165                window.activate_window();
 9166            })
 9167            .ok();
 9168        Ok(())
 9169    })
 9170}
 9171
 9172pub fn create_and_open_local_file(
 9173    path: &'static Path,
 9174    window: &mut Window,
 9175    cx: &mut Context<Workspace>,
 9176    default_content: impl 'static + Send + FnOnce() -> Rope,
 9177) -> Task<Result<Box<dyn ItemHandle>>> {
 9178    cx.spawn_in(window, async move |workspace, cx| {
 9179        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9180        if !fs.is_file(path).await {
 9181            fs.create_file(path, Default::default()).await?;
 9182            fs.save(path, &default_content(), Default::default())
 9183                .await?;
 9184        }
 9185
 9186        workspace
 9187            .update_in(cx, |workspace, window, cx| {
 9188                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9189                    let path = workspace
 9190                        .project
 9191                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9192                    cx.spawn_in(window, async move |workspace, cx| {
 9193                        let path = path.await?;
 9194                        let mut items = workspace
 9195                            .update_in(cx, |workspace, window, cx| {
 9196                                workspace.open_paths(
 9197                                    vec![path.to_path_buf()],
 9198                                    OpenOptions {
 9199                                        visible: Some(OpenVisible::None),
 9200                                        ..Default::default()
 9201                                    },
 9202                                    None,
 9203                                    window,
 9204                                    cx,
 9205                                )
 9206                            })?
 9207                            .await;
 9208                        let item = items.pop().flatten();
 9209                        item.with_context(|| format!("path {path:?} is not a file"))?
 9210                    })
 9211                })
 9212            })?
 9213            .await?
 9214            .await
 9215    })
 9216}
 9217
 9218pub fn open_remote_project_with_new_connection(
 9219    window: WindowHandle<MultiWorkspace>,
 9220    remote_connection: Arc<dyn RemoteConnection>,
 9221    cancel_rx: oneshot::Receiver<()>,
 9222    delegate: Arc<dyn RemoteClientDelegate>,
 9223    app_state: Arc<AppState>,
 9224    paths: Vec<PathBuf>,
 9225    cx: &mut App,
 9226) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9227    cx.spawn(async move |cx| {
 9228        let (workspace_id, serialized_workspace) =
 9229            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9230                .await?;
 9231
 9232        let session = match cx
 9233            .update(|cx| {
 9234                remote::RemoteClient::new(
 9235                    ConnectionIdentifier::Workspace(workspace_id.0),
 9236                    remote_connection,
 9237                    cancel_rx,
 9238                    delegate,
 9239                    cx,
 9240                )
 9241            })
 9242            .await?
 9243        {
 9244            Some(result) => result,
 9245            None => return Ok(Vec::new()),
 9246        };
 9247
 9248        let project = cx.update(|cx| {
 9249            project::Project::remote(
 9250                session,
 9251                app_state.client.clone(),
 9252                app_state.node_runtime.clone(),
 9253                app_state.user_store.clone(),
 9254                app_state.languages.clone(),
 9255                app_state.fs.clone(),
 9256                true,
 9257                cx,
 9258            )
 9259        });
 9260
 9261        open_remote_project_inner(
 9262            project,
 9263            paths,
 9264            workspace_id,
 9265            serialized_workspace,
 9266            app_state,
 9267            window,
 9268            cx,
 9269        )
 9270        .await
 9271    })
 9272}
 9273
 9274pub fn open_remote_project_with_existing_connection(
 9275    connection_options: RemoteConnectionOptions,
 9276    project: Entity<Project>,
 9277    paths: Vec<PathBuf>,
 9278    app_state: Arc<AppState>,
 9279    window: WindowHandle<MultiWorkspace>,
 9280    cx: &mut AsyncApp,
 9281) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9282    cx.spawn(async move |cx| {
 9283        let (workspace_id, serialized_workspace) =
 9284            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9285
 9286        open_remote_project_inner(
 9287            project,
 9288            paths,
 9289            workspace_id,
 9290            serialized_workspace,
 9291            app_state,
 9292            window,
 9293            cx,
 9294        )
 9295        .await
 9296    })
 9297}
 9298
 9299async fn open_remote_project_inner(
 9300    project: Entity<Project>,
 9301    paths: Vec<PathBuf>,
 9302    workspace_id: WorkspaceId,
 9303    serialized_workspace: Option<SerializedWorkspace>,
 9304    app_state: Arc<AppState>,
 9305    window: WindowHandle<MultiWorkspace>,
 9306    cx: &mut AsyncApp,
 9307) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9308    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9309    let toolchains = db.toolchains(workspace_id).await?;
 9310    for (toolchain, worktree_path, path) in toolchains {
 9311        project
 9312            .update(cx, |this, cx| {
 9313                let Some(worktree_id) =
 9314                    this.find_worktree(&worktree_path, cx)
 9315                        .and_then(|(worktree, rel_path)| {
 9316                            if rel_path.is_empty() {
 9317                                Some(worktree.read(cx).id())
 9318                            } else {
 9319                                None
 9320                            }
 9321                        })
 9322                else {
 9323                    return Task::ready(None);
 9324                };
 9325
 9326                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9327            })
 9328            .await;
 9329    }
 9330    let mut project_paths_to_open = vec![];
 9331    let mut project_path_errors = vec![];
 9332
 9333    for path in paths {
 9334        let result = cx
 9335            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9336            .await;
 9337        match result {
 9338            Ok((_, project_path)) => {
 9339                project_paths_to_open.push((path.clone(), Some(project_path)));
 9340            }
 9341            Err(error) => {
 9342                project_path_errors.push(error);
 9343            }
 9344        };
 9345    }
 9346
 9347    if project_paths_to_open.is_empty() {
 9348        return Err(project_path_errors.pop().context("no paths given")?);
 9349    }
 9350
 9351    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9352        telemetry::event!("SSH Project Opened");
 9353
 9354        let new_workspace = cx.new(|cx| {
 9355            let mut workspace =
 9356                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9357            workspace.update_history(cx);
 9358
 9359            if let Some(ref serialized) = serialized_workspace {
 9360                workspace.centered_layout = serialized.centered_layout;
 9361            }
 9362
 9363            workspace
 9364        });
 9365
 9366        multi_workspace.activate(new_workspace.clone(), cx);
 9367        new_workspace
 9368    })?;
 9369
 9370    let items = window
 9371        .update(cx, |_, window, cx| {
 9372            window.activate_window();
 9373            workspace.update(cx, |_workspace, cx| {
 9374                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9375            })
 9376        })?
 9377        .await?;
 9378
 9379    workspace.update(cx, |workspace, cx| {
 9380        for error in project_path_errors {
 9381            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9382                if let Some(path) = error.error_tag("path") {
 9383                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9384                }
 9385            } else {
 9386                workspace.show_error(&error, cx)
 9387            }
 9388        }
 9389    });
 9390
 9391    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9392}
 9393
 9394fn deserialize_remote_project(
 9395    connection_options: RemoteConnectionOptions,
 9396    paths: Vec<PathBuf>,
 9397    cx: &AsyncApp,
 9398) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9399    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9400    cx.background_spawn(async move {
 9401        let remote_connection_id = db
 9402            .get_or_create_remote_connection(connection_options)
 9403            .await?;
 9404
 9405        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9406
 9407        let workspace_id = if let Some(workspace_id) =
 9408            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9409        {
 9410            workspace_id
 9411        } else {
 9412            db.next_id().await?
 9413        };
 9414
 9415        Ok((workspace_id, serialized_workspace))
 9416    })
 9417}
 9418
 9419pub fn join_in_room_project(
 9420    project_id: u64,
 9421    follow_user_id: u64,
 9422    app_state: Arc<AppState>,
 9423    cx: &mut App,
 9424) -> Task<Result<()>> {
 9425    let windows = cx.windows();
 9426    cx.spawn(async move |cx| {
 9427        let existing_window_and_workspace: Option<(
 9428            WindowHandle<MultiWorkspace>,
 9429            Entity<Workspace>,
 9430        )> = windows.into_iter().find_map(|window_handle| {
 9431            window_handle
 9432                .downcast::<MultiWorkspace>()
 9433                .and_then(|window_handle| {
 9434                    window_handle
 9435                        .update(cx, |multi_workspace, _window, cx| {
 9436                            for workspace in multi_workspace.workspaces() {
 9437                                if workspace.read(cx).project().read(cx).remote_id()
 9438                                    == Some(project_id)
 9439                                {
 9440                                    return Some((window_handle, workspace.clone()));
 9441                                }
 9442                            }
 9443                            None
 9444                        })
 9445                        .unwrap_or(None)
 9446                })
 9447        });
 9448
 9449        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9450            existing_window_and_workspace
 9451        {
 9452            existing_window
 9453                .update(cx, |multi_workspace, _, cx| {
 9454                    multi_workspace.activate(target_workspace, cx);
 9455                })
 9456                .ok();
 9457            existing_window
 9458        } else {
 9459            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9460            let project = cx
 9461                .update(|cx| {
 9462                    active_call.0.join_project(
 9463                        project_id,
 9464                        app_state.languages.clone(),
 9465                        app_state.fs.clone(),
 9466                        cx,
 9467                    )
 9468                })
 9469                .await?;
 9470
 9471            let window_bounds_override = window_bounds_env_override();
 9472            cx.update(|cx| {
 9473                let mut options = (app_state.build_window_options)(None, cx);
 9474                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9475                cx.open_window(options, |window, cx| {
 9476                    let workspace = cx.new(|cx| {
 9477                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9478                    });
 9479                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9480                })
 9481            })?
 9482        };
 9483
 9484        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9485            cx.activate(true);
 9486            window.activate_window();
 9487
 9488            // We set the active workspace above, so this is the correct workspace.
 9489            let workspace = multi_workspace.workspace().clone();
 9490            workspace.update(cx, |workspace, cx| {
 9491                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9492                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9493                    .or_else(|| {
 9494                        // If we couldn't follow the given user, follow the host instead.
 9495                        let collaborator = workspace
 9496                            .project()
 9497                            .read(cx)
 9498                            .collaborators()
 9499                            .values()
 9500                            .find(|collaborator| collaborator.is_host)?;
 9501                        Some(collaborator.peer_id)
 9502                    });
 9503
 9504                if let Some(follow_peer_id) = follow_peer_id {
 9505                    workspace.follow(follow_peer_id, window, cx);
 9506                }
 9507            });
 9508        })?;
 9509
 9510        anyhow::Ok(())
 9511    })
 9512}
 9513
 9514pub fn reload(cx: &mut App) {
 9515    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9516    let mut workspace_windows = cx
 9517        .windows()
 9518        .into_iter()
 9519        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9520        .collect::<Vec<_>>();
 9521
 9522    // If multiple windows have unsaved changes, and need a save prompt,
 9523    // prompt in the active window before switching to a different window.
 9524    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9525
 9526    let mut prompt = None;
 9527    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9528        prompt = window
 9529            .update(cx, |_, window, cx| {
 9530                window.prompt(
 9531                    PromptLevel::Info,
 9532                    "Are you sure you want to restart?",
 9533                    None,
 9534                    &["Restart", "Cancel"],
 9535                    cx,
 9536                )
 9537            })
 9538            .ok();
 9539    }
 9540
 9541    cx.spawn(async move |cx| {
 9542        if let Some(prompt) = prompt {
 9543            let answer = prompt.await?;
 9544            if answer != 0 {
 9545                return anyhow::Ok(());
 9546            }
 9547        }
 9548
 9549        // If the user cancels any save prompt, then keep the app open.
 9550        for window in workspace_windows {
 9551            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9552                let workspace = multi_workspace.workspace().clone();
 9553                workspace.update(cx, |workspace, cx| {
 9554                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9555                })
 9556            }) && !should_close.await?
 9557            {
 9558                return anyhow::Ok(());
 9559            }
 9560        }
 9561        cx.update(|cx| cx.restart());
 9562        anyhow::Ok(())
 9563    })
 9564    .detach_and_log_err(cx);
 9565}
 9566
 9567fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9568    let mut parts = value.split(',');
 9569    let x: usize = parts.next()?.parse().ok()?;
 9570    let y: usize = parts.next()?.parse().ok()?;
 9571    Some(point(px(x as f32), px(y as f32)))
 9572}
 9573
 9574fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9575    let mut parts = value.split(',');
 9576    let width: usize = parts.next()?.parse().ok()?;
 9577    let height: usize = parts.next()?.parse().ok()?;
 9578    Some(size(px(width as f32), px(height as f32)))
 9579}
 9580
 9581/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9582/// appropriate.
 9583///
 9584/// The `border_radius_tiling` parameter allows overriding which corners get
 9585/// rounded, independently of the actual window tiling state. This is used
 9586/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9587/// we want square corners on the left (so the sidebar appears flush with the
 9588/// window edge) but we still need the shadow padding for proper visual
 9589/// appearance. Unlike actual window tiling, this only affects border radius -
 9590/// not padding or shadows.
 9591pub fn client_side_decorations(
 9592    element: impl IntoElement,
 9593    window: &mut Window,
 9594    cx: &mut App,
 9595    border_radius_tiling: Tiling,
 9596) -> Stateful<Div> {
 9597    const BORDER_SIZE: Pixels = px(1.0);
 9598    let decorations = window.window_decorations();
 9599    let tiling = match decorations {
 9600        Decorations::Server => Tiling::default(),
 9601        Decorations::Client { tiling } => tiling,
 9602    };
 9603
 9604    match decorations {
 9605        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9606        Decorations::Server => window.set_client_inset(px(0.0)),
 9607    }
 9608
 9609    struct GlobalResizeEdge(ResizeEdge);
 9610    impl Global for GlobalResizeEdge {}
 9611
 9612    div()
 9613        .id("window-backdrop")
 9614        .bg(transparent_black())
 9615        .map(|div| match decorations {
 9616            Decorations::Server => div,
 9617            Decorations::Client { .. } => div
 9618                .when(
 9619                    !(tiling.top
 9620                        || tiling.right
 9621                        || border_radius_tiling.top
 9622                        || border_radius_tiling.right),
 9623                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9624                )
 9625                .when(
 9626                    !(tiling.top
 9627                        || tiling.left
 9628                        || border_radius_tiling.top
 9629                        || border_radius_tiling.left),
 9630                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9631                )
 9632                .when(
 9633                    !(tiling.bottom
 9634                        || tiling.right
 9635                        || border_radius_tiling.bottom
 9636                        || border_radius_tiling.right),
 9637                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9638                )
 9639                .when(
 9640                    !(tiling.bottom
 9641                        || tiling.left
 9642                        || border_radius_tiling.bottom
 9643                        || border_radius_tiling.left),
 9644                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9645                )
 9646                .when(!tiling.top, |div| {
 9647                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9648                })
 9649                .when(!tiling.bottom, |div| {
 9650                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9651                })
 9652                .when(!tiling.left, |div| {
 9653                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9654                })
 9655                .when(!tiling.right, |div| {
 9656                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9657                })
 9658                .on_mouse_move(move |e, window, cx| {
 9659                    let size = window.window_bounds().get_bounds().size;
 9660                    let pos = e.position;
 9661
 9662                    let new_edge =
 9663                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9664
 9665                    let edge = cx.try_global::<GlobalResizeEdge>();
 9666                    if new_edge != edge.map(|edge| edge.0) {
 9667                        window
 9668                            .window_handle()
 9669                            .update(cx, |workspace, _, cx| {
 9670                                cx.notify(workspace.entity_id());
 9671                            })
 9672                            .ok();
 9673                    }
 9674                })
 9675                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9676                    let size = window.window_bounds().get_bounds().size;
 9677                    let pos = e.position;
 9678
 9679                    let edge = match resize_edge(
 9680                        pos,
 9681                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9682                        size,
 9683                        tiling,
 9684                    ) {
 9685                        Some(value) => value,
 9686                        None => return,
 9687                    };
 9688
 9689                    window.start_window_resize(edge);
 9690                }),
 9691        })
 9692        .size_full()
 9693        .child(
 9694            div()
 9695                .cursor(CursorStyle::Arrow)
 9696                .map(|div| match decorations {
 9697                    Decorations::Server => div,
 9698                    Decorations::Client { .. } => div
 9699                        .border_color(cx.theme().colors().border)
 9700                        .when(
 9701                            !(tiling.top
 9702                                || tiling.right
 9703                                || border_radius_tiling.top
 9704                                || border_radius_tiling.right),
 9705                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9706                        )
 9707                        .when(
 9708                            !(tiling.top
 9709                                || tiling.left
 9710                                || border_radius_tiling.top
 9711                                || border_radius_tiling.left),
 9712                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9713                        )
 9714                        .when(
 9715                            !(tiling.bottom
 9716                                || tiling.right
 9717                                || border_radius_tiling.bottom
 9718                                || border_radius_tiling.right),
 9719                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9720                        )
 9721                        .when(
 9722                            !(tiling.bottom
 9723                                || tiling.left
 9724                                || border_radius_tiling.bottom
 9725                                || border_radius_tiling.left),
 9726                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9727                        )
 9728                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9729                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9730                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9731                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9732                        .when(!tiling.is_tiled(), |div| {
 9733                            div.shadow(vec![gpui::BoxShadow {
 9734                                color: Hsla {
 9735                                    h: 0.,
 9736                                    s: 0.,
 9737                                    l: 0.,
 9738                                    a: 0.4,
 9739                                },
 9740                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9741                                spread_radius: px(0.),
 9742                                offset: point(px(0.0), px(0.0)),
 9743                            }])
 9744                        }),
 9745                })
 9746                .on_mouse_move(|_e, _, cx| {
 9747                    cx.stop_propagation();
 9748                })
 9749                .size_full()
 9750                .child(element),
 9751        )
 9752        .map(|div| match decorations {
 9753            Decorations::Server => div,
 9754            Decorations::Client { tiling, .. } => div.child(
 9755                canvas(
 9756                    |_bounds, window, _| {
 9757                        window.insert_hitbox(
 9758                            Bounds::new(
 9759                                point(px(0.0), px(0.0)),
 9760                                window.window_bounds().get_bounds().size,
 9761                            ),
 9762                            HitboxBehavior::Normal,
 9763                        )
 9764                    },
 9765                    move |_bounds, hitbox, window, cx| {
 9766                        let mouse = window.mouse_position();
 9767                        let size = window.window_bounds().get_bounds().size;
 9768                        let Some(edge) =
 9769                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 9770                        else {
 9771                            return;
 9772                        };
 9773                        cx.set_global(GlobalResizeEdge(edge));
 9774                        window.set_cursor_style(
 9775                            match edge {
 9776                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 9777                                ResizeEdge::Left | ResizeEdge::Right => {
 9778                                    CursorStyle::ResizeLeftRight
 9779                                }
 9780                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 9781                                    CursorStyle::ResizeUpLeftDownRight
 9782                                }
 9783                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 9784                                    CursorStyle::ResizeUpRightDownLeft
 9785                                }
 9786                            },
 9787                            &hitbox,
 9788                        );
 9789                    },
 9790                )
 9791                .size_full()
 9792                .absolute(),
 9793            ),
 9794        })
 9795}
 9796
 9797fn resize_edge(
 9798    pos: Point<Pixels>,
 9799    shadow_size: Pixels,
 9800    window_size: Size<Pixels>,
 9801    tiling: Tiling,
 9802) -> Option<ResizeEdge> {
 9803    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9804    if bounds.contains(&pos) {
 9805        return None;
 9806    }
 9807
 9808    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9809    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 9810    if !tiling.top && top_left_bounds.contains(&pos) {
 9811        return Some(ResizeEdge::TopLeft);
 9812    }
 9813
 9814    let top_right_bounds = Bounds::new(
 9815        Point::new(window_size.width - corner_size.width, px(0.)),
 9816        corner_size,
 9817    );
 9818    if !tiling.top && top_right_bounds.contains(&pos) {
 9819        return Some(ResizeEdge::TopRight);
 9820    }
 9821
 9822    let bottom_left_bounds = Bounds::new(
 9823        Point::new(px(0.), window_size.height - corner_size.height),
 9824        corner_size,
 9825    );
 9826    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 9827        return Some(ResizeEdge::BottomLeft);
 9828    }
 9829
 9830    let bottom_right_bounds = Bounds::new(
 9831        Point::new(
 9832            window_size.width - corner_size.width,
 9833            window_size.height - corner_size.height,
 9834        ),
 9835        corner_size,
 9836    );
 9837    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 9838        return Some(ResizeEdge::BottomRight);
 9839    }
 9840
 9841    if !tiling.top && pos.y < shadow_size {
 9842        Some(ResizeEdge::Top)
 9843    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 9844        Some(ResizeEdge::Bottom)
 9845    } else if !tiling.left && pos.x < shadow_size {
 9846        Some(ResizeEdge::Left)
 9847    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 9848        Some(ResizeEdge::Right)
 9849    } else {
 9850        None
 9851    }
 9852}
 9853
 9854fn join_pane_into_active(
 9855    active_pane: &Entity<Pane>,
 9856    pane: &Entity<Pane>,
 9857    window: &mut Window,
 9858    cx: &mut App,
 9859) {
 9860    if pane == active_pane {
 9861    } else if pane.read(cx).items_len() == 0 {
 9862        pane.update(cx, |_, cx| {
 9863            cx.emit(pane::Event::Remove {
 9864                focus_on_pane: None,
 9865            });
 9866        })
 9867    } else {
 9868        move_all_items(pane, active_pane, window, cx);
 9869    }
 9870}
 9871
 9872fn move_all_items(
 9873    from_pane: &Entity<Pane>,
 9874    to_pane: &Entity<Pane>,
 9875    window: &mut Window,
 9876    cx: &mut App,
 9877) {
 9878    let destination_is_different = from_pane != to_pane;
 9879    let mut moved_items = 0;
 9880    for (item_ix, item_handle) in from_pane
 9881        .read(cx)
 9882        .items()
 9883        .enumerate()
 9884        .map(|(ix, item)| (ix, item.clone()))
 9885        .collect::<Vec<_>>()
 9886    {
 9887        let ix = item_ix - moved_items;
 9888        if destination_is_different {
 9889            // Close item from previous pane
 9890            from_pane.update(cx, |source, cx| {
 9891                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 9892            });
 9893            moved_items += 1;
 9894        }
 9895
 9896        // This automatically removes duplicate items in the pane
 9897        to_pane.update(cx, |destination, cx| {
 9898            destination.add_item(item_handle, true, true, None, window, cx);
 9899            window.focus(&destination.focus_handle(cx), cx)
 9900        });
 9901    }
 9902}
 9903
 9904pub fn move_item(
 9905    source: &Entity<Pane>,
 9906    destination: &Entity<Pane>,
 9907    item_id_to_move: EntityId,
 9908    destination_index: usize,
 9909    activate: bool,
 9910    window: &mut Window,
 9911    cx: &mut App,
 9912) {
 9913    let Some((item_ix, item_handle)) = source
 9914        .read(cx)
 9915        .items()
 9916        .enumerate()
 9917        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 9918        .map(|(ix, item)| (ix, item.clone()))
 9919    else {
 9920        // Tab was closed during drag
 9921        return;
 9922    };
 9923
 9924    if source != destination {
 9925        // Close item from previous pane
 9926        source.update(cx, |source, cx| {
 9927            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9928        });
 9929    }
 9930
 9931    // This automatically removes duplicate items in the pane
 9932    destination.update(cx, |destination, cx| {
 9933        destination.add_item_inner(
 9934            item_handle,
 9935            activate,
 9936            activate,
 9937            activate,
 9938            Some(destination_index),
 9939            window,
 9940            cx,
 9941        );
 9942        if activate {
 9943            window.focus(&destination.focus_handle(cx), cx)
 9944        }
 9945    });
 9946}
 9947
 9948pub fn move_active_item(
 9949    source: &Entity<Pane>,
 9950    destination: &Entity<Pane>,
 9951    focus_destination: bool,
 9952    close_if_empty: bool,
 9953    window: &mut Window,
 9954    cx: &mut App,
 9955) {
 9956    if source == destination {
 9957        return;
 9958    }
 9959    let Some(active_item) = source.read(cx).active_item() else {
 9960        return;
 9961    };
 9962    source.update(cx, |source_pane, cx| {
 9963        let item_id = active_item.item_id();
 9964        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9965        destination.update(cx, |target_pane, cx| {
 9966            target_pane.add_item(
 9967                active_item,
 9968                focus_destination,
 9969                focus_destination,
 9970                Some(target_pane.items_len()),
 9971                window,
 9972                cx,
 9973            );
 9974        });
 9975    });
 9976}
 9977
 9978pub fn clone_active_item(
 9979    workspace_id: Option<WorkspaceId>,
 9980    source: &Entity<Pane>,
 9981    destination: &Entity<Pane>,
 9982    focus_destination: bool,
 9983    window: &mut Window,
 9984    cx: &mut App,
 9985) {
 9986    if source == destination {
 9987        return;
 9988    }
 9989    let Some(active_item) = source.read(cx).active_item() else {
 9990        return;
 9991    };
 9992    if !active_item.can_split(cx) {
 9993        return;
 9994    }
 9995    let destination = destination.downgrade();
 9996    let task = active_item.clone_on_split(workspace_id, window, cx);
 9997    window
 9998        .spawn(cx, async move |cx| {
 9999            let Some(clone) = task.await else {
10000                return;
10001            };
10002            destination
10003                .update_in(cx, |target_pane, window, cx| {
10004                    target_pane.add_item(
10005                        clone,
10006                        focus_destination,
10007                        focus_destination,
10008                        Some(target_pane.items_len()),
10009                        window,
10010                        cx,
10011                    );
10012                })
10013                .log_err();
10014        })
10015        .detach();
10016}
10017
10018#[derive(Debug)]
10019pub struct WorkspacePosition {
10020    pub window_bounds: Option<WindowBounds>,
10021    pub display: Option<Uuid>,
10022    pub centered_layout: bool,
10023}
10024
10025pub fn remote_workspace_position_from_db(
10026    connection_options: RemoteConnectionOptions,
10027    paths_to_open: &[PathBuf],
10028    cx: &App,
10029) -> Task<Result<WorkspacePosition>> {
10030    let paths = paths_to_open.to_vec();
10031    let db = WorkspaceDb::global(cx);
10032    let kvp = db::kvp::KeyValueStore::global(cx);
10033
10034    cx.background_spawn(async move {
10035        let remote_connection_id = db
10036            .get_or_create_remote_connection(connection_options)
10037            .await
10038            .context("fetching serialized ssh project")?;
10039        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10040
10041        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10042            (Some(WindowBounds::Windowed(bounds)), None)
10043        } else {
10044            let restorable_bounds = serialized_workspace
10045                .as_ref()
10046                .and_then(|workspace| {
10047                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10048                })
10049                .or_else(|| persistence::read_default_window_bounds(&kvp));
10050
10051            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10052                (Some(serialized_bounds), Some(serialized_display))
10053            } else {
10054                (None, None)
10055            }
10056        };
10057
10058        let centered_layout = serialized_workspace
10059            .as_ref()
10060            .map(|w| w.centered_layout)
10061            .unwrap_or(false);
10062
10063        Ok(WorkspacePosition {
10064            window_bounds,
10065            display,
10066            centered_layout,
10067        })
10068    })
10069}
10070
10071pub fn with_active_or_new_workspace(
10072    cx: &mut App,
10073    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10074) {
10075    match cx
10076        .active_window()
10077        .and_then(|w| w.downcast::<MultiWorkspace>())
10078    {
10079        Some(multi_workspace) => {
10080            cx.defer(move |cx| {
10081                multi_workspace
10082                    .update(cx, |multi_workspace, window, cx| {
10083                        let workspace = multi_workspace.workspace().clone();
10084                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10085                    })
10086                    .log_err();
10087            });
10088        }
10089        None => {
10090            let app_state = AppState::global(cx);
10091            if let Some(app_state) = app_state.upgrade() {
10092                open_new(
10093                    OpenOptions::default(),
10094                    app_state,
10095                    cx,
10096                    move |workspace, window, cx| f(workspace, window, cx),
10097                )
10098                .detach_and_log_err(cx);
10099            }
10100        }
10101    }
10102}
10103
10104#[cfg(test)]
10105mod tests {
10106    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10107
10108    use super::*;
10109    use crate::{
10110        dock::{PanelEvent, test::TestPanel},
10111        item::{
10112            ItemBufferKind, ItemEvent,
10113            test::{TestItem, TestProjectItem},
10114        },
10115    };
10116    use fs::FakeFs;
10117    use gpui::{
10118        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10119        UpdateGlobal, VisualTestContext, px,
10120    };
10121    use project::{Project, ProjectEntryId};
10122    use serde_json::json;
10123    use settings::SettingsStore;
10124    use util::path;
10125    use util::rel_path::rel_path;
10126
10127    #[gpui::test]
10128    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10129        init_test(cx);
10130
10131        let fs = FakeFs::new(cx.executor());
10132        let project = Project::test(fs, [], cx).await;
10133        let (workspace, cx) =
10134            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10135
10136        // Adding an item with no ambiguity renders the tab without detail.
10137        let item1 = cx.new(|cx| {
10138            let mut item = TestItem::new(cx);
10139            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10140            item
10141        });
10142        workspace.update_in(cx, |workspace, window, cx| {
10143            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10144        });
10145        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10146
10147        // Adding an item that creates ambiguity increases the level of detail on
10148        // both tabs.
10149        let item2 = cx.new_window_entity(|_window, 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(item2.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(1)));
10159
10160        // Adding an item that creates ambiguity increases the level of detail only
10161        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10162        // we stop at the highest detail available.
10163        let item3 = cx.new(|cx| {
10164            let mut item = TestItem::new(cx);
10165            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10166            item
10167        });
10168        workspace.update_in(cx, |workspace, window, cx| {
10169            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10170        });
10171        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10172        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10173        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10174    }
10175
10176    #[gpui::test]
10177    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10178        init_test(cx);
10179
10180        let fs = FakeFs::new(cx.executor());
10181        fs.insert_tree(
10182            "/root1",
10183            json!({
10184                "one.txt": "",
10185                "two.txt": "",
10186            }),
10187        )
10188        .await;
10189        fs.insert_tree(
10190            "/root2",
10191            json!({
10192                "three.txt": "",
10193            }),
10194        )
10195        .await;
10196
10197        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10198        let (workspace, cx) =
10199            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10200        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10201        let worktree_id = project.update(cx, |project, cx| {
10202            project.worktrees(cx).next().unwrap().read(cx).id()
10203        });
10204
10205        let item1 = cx.new(|cx| {
10206            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10207        });
10208        let item2 = cx.new(|cx| {
10209            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10210        });
10211
10212        // Add an item to an empty pane
10213        workspace.update_in(cx, |workspace, window, cx| {
10214            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10215        });
10216        project.update(cx, |project, cx| {
10217            assert_eq!(
10218                project.active_entry(),
10219                project
10220                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10221                    .map(|e| e.id)
10222            );
10223        });
10224        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10225
10226        // Add a second item to a non-empty pane
10227        workspace.update_in(cx, |workspace, window, cx| {
10228            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10229        });
10230        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10231        project.update(cx, |project, cx| {
10232            assert_eq!(
10233                project.active_entry(),
10234                project
10235                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10236                    .map(|e| e.id)
10237            );
10238        });
10239
10240        // Close the active item
10241        pane.update_in(cx, |pane, window, cx| {
10242            pane.close_active_item(&Default::default(), window, cx)
10243        })
10244        .await
10245        .unwrap();
10246        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10247        project.update(cx, |project, cx| {
10248            assert_eq!(
10249                project.active_entry(),
10250                project
10251                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10252                    .map(|e| e.id)
10253            );
10254        });
10255
10256        // Add a project folder
10257        project
10258            .update(cx, |project, cx| {
10259                project.find_or_create_worktree("root2", true, cx)
10260            })
10261            .await
10262            .unwrap();
10263        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10264
10265        // Remove a project folder
10266        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10267        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10268    }
10269
10270    #[gpui::test]
10271    async fn test_close_window(cx: &mut TestAppContext) {
10272        init_test(cx);
10273
10274        let fs = FakeFs::new(cx.executor());
10275        fs.insert_tree("/root", json!({ "one": "" })).await;
10276
10277        let project = Project::test(fs, ["root".as_ref()], cx).await;
10278        let (workspace, cx) =
10279            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10280
10281        // When there are no dirty items, there's nothing to do.
10282        let item1 = cx.new(TestItem::new);
10283        workspace.update_in(cx, |w, window, cx| {
10284            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10285        });
10286        let task = workspace.update_in(cx, |w, window, cx| {
10287            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10288        });
10289        assert!(task.await.unwrap());
10290
10291        // When there are dirty untitled items, prompt to save each one. If the user
10292        // cancels any prompt, then abort.
10293        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10294        let item3 = cx.new(|cx| {
10295            TestItem::new(cx)
10296                .with_dirty(true)
10297                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10298        });
10299        workspace.update_in(cx, |w, window, cx| {
10300            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10301            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10302        });
10303        let task = workspace.update_in(cx, |w, window, cx| {
10304            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10305        });
10306        cx.executor().run_until_parked();
10307        cx.simulate_prompt_answer("Cancel"); // cancel save all
10308        cx.executor().run_until_parked();
10309        assert!(!cx.has_pending_prompt());
10310        assert!(!task.await.unwrap());
10311    }
10312
10313    #[gpui::test]
10314    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10315        init_test(cx);
10316
10317        let fs = FakeFs::new(cx.executor());
10318        fs.insert_tree("/root", json!({ "one": "" })).await;
10319
10320        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10321        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10322        let multi_workspace_handle =
10323            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10324        cx.run_until_parked();
10325
10326        let workspace_a = multi_workspace_handle
10327            .read_with(cx, |mw, _| mw.workspace().clone())
10328            .unwrap();
10329
10330        let workspace_b = multi_workspace_handle
10331            .update(cx, |mw, window, cx| {
10332                mw.test_add_workspace(project_b, window, cx)
10333            })
10334            .unwrap();
10335
10336        // Activate workspace A
10337        multi_workspace_handle
10338            .update(cx, |mw, window, cx| {
10339                mw.activate_index(0, window, cx);
10340            })
10341            .unwrap();
10342
10343        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10344
10345        // Workspace A has a clean item
10346        let item_a = cx.new(TestItem::new);
10347        workspace_a.update_in(cx, |w, window, cx| {
10348            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10349        });
10350
10351        // Workspace B has a dirty item
10352        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10353        workspace_b.update_in(cx, |w, window, cx| {
10354            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10355        });
10356
10357        // Verify workspace A is active
10358        multi_workspace_handle
10359            .read_with(cx, |mw, _| {
10360                assert_eq!(mw.active_workspace_index(), 0);
10361            })
10362            .unwrap();
10363
10364        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10365        multi_workspace_handle
10366            .update(cx, |mw, window, cx| {
10367                mw.close_window(&CloseWindow, window, cx);
10368            })
10369            .unwrap();
10370        cx.run_until_parked();
10371
10372        // Workspace B should now be active since it has dirty items that need attention
10373        multi_workspace_handle
10374            .read_with(cx, |mw, _| {
10375                assert_eq!(
10376                    mw.active_workspace_index(),
10377                    1,
10378                    "workspace B should be activated when it prompts"
10379                );
10380            })
10381            .unwrap();
10382
10383        // User cancels the save prompt from workspace B
10384        cx.simulate_prompt_answer("Cancel");
10385        cx.run_until_parked();
10386
10387        // Window should still exist because workspace B's close was cancelled
10388        assert!(
10389            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10390            "window should still exist after cancelling one workspace's close"
10391        );
10392    }
10393
10394    #[gpui::test]
10395    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10396        init_test(cx);
10397
10398        // Register TestItem as a serializable item
10399        cx.update(|cx| {
10400            register_serializable_item::<TestItem>(cx);
10401        });
10402
10403        let fs = FakeFs::new(cx.executor());
10404        fs.insert_tree("/root", json!({ "one": "" })).await;
10405
10406        let project = Project::test(fs, ["root".as_ref()], cx).await;
10407        let (workspace, cx) =
10408            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10409
10410        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10411        let item1 = cx.new(|cx| {
10412            TestItem::new(cx)
10413                .with_dirty(true)
10414                .with_serialize(|| Some(Task::ready(Ok(()))))
10415        });
10416        let item2 = cx.new(|cx| {
10417            TestItem::new(cx)
10418                .with_dirty(true)
10419                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10420                .with_serialize(|| Some(Task::ready(Ok(()))))
10421        });
10422        workspace.update_in(cx, |w, window, cx| {
10423            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10424            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10425        });
10426        let task = workspace.update_in(cx, |w, window, cx| {
10427            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10428        });
10429        assert!(task.await.unwrap());
10430    }
10431
10432    #[gpui::test]
10433    async fn test_close_pane_items(cx: &mut TestAppContext) {
10434        init_test(cx);
10435
10436        let fs = FakeFs::new(cx.executor());
10437
10438        let project = Project::test(fs, None, cx).await;
10439        let (workspace, cx) =
10440            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10441
10442        let item1 = cx.new(|cx| {
10443            TestItem::new(cx)
10444                .with_dirty(true)
10445                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10446        });
10447        let item2 = cx.new(|cx| {
10448            TestItem::new(cx)
10449                .with_dirty(true)
10450                .with_conflict(true)
10451                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10452        });
10453        let item3 = cx.new(|cx| {
10454            TestItem::new(cx)
10455                .with_dirty(true)
10456                .with_conflict(true)
10457                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10458        });
10459        let item4 = cx.new(|cx| {
10460            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10461                let project_item = TestProjectItem::new_untitled(cx);
10462                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10463                project_item
10464            }])
10465        });
10466        let pane = workspace.update_in(cx, |workspace, window, cx| {
10467            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10468            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10469            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10470            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10471            workspace.active_pane().clone()
10472        });
10473
10474        let close_items = pane.update_in(cx, |pane, window, cx| {
10475            pane.activate_item(1, true, true, window, cx);
10476            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10477            let item1_id = item1.item_id();
10478            let item3_id = item3.item_id();
10479            let item4_id = item4.item_id();
10480            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10481                [item1_id, item3_id, item4_id].contains(&id)
10482            })
10483        });
10484        cx.executor().run_until_parked();
10485
10486        assert!(cx.has_pending_prompt());
10487        cx.simulate_prompt_answer("Save all");
10488
10489        cx.executor().run_until_parked();
10490
10491        // Item 1 is saved. There's a prompt to save item 3.
10492        pane.update(cx, |pane, cx| {
10493            assert_eq!(item1.read(cx).save_count, 1);
10494            assert_eq!(item1.read(cx).save_as_count, 0);
10495            assert_eq!(item1.read(cx).reload_count, 0);
10496            assert_eq!(pane.items_len(), 3);
10497            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10498        });
10499        assert!(cx.has_pending_prompt());
10500
10501        // Cancel saving item 3.
10502        cx.simulate_prompt_answer("Discard");
10503        cx.executor().run_until_parked();
10504
10505        // Item 3 is reloaded. There's a prompt to save item 4.
10506        pane.update(cx, |pane, cx| {
10507            assert_eq!(item3.read(cx).save_count, 0);
10508            assert_eq!(item3.read(cx).save_as_count, 0);
10509            assert_eq!(item3.read(cx).reload_count, 1);
10510            assert_eq!(pane.items_len(), 2);
10511            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10512        });
10513
10514        // There's a prompt for a path for item 4.
10515        cx.simulate_new_path_selection(|_| Some(Default::default()));
10516        close_items.await.unwrap();
10517
10518        // The requested items are closed.
10519        pane.update(cx, |pane, cx| {
10520            assert_eq!(item4.read(cx).save_count, 0);
10521            assert_eq!(item4.read(cx).save_as_count, 1);
10522            assert_eq!(item4.read(cx).reload_count, 0);
10523            assert_eq!(pane.items_len(), 1);
10524            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10525        });
10526    }
10527
10528    #[gpui::test]
10529    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10530        init_test(cx);
10531
10532        let fs = FakeFs::new(cx.executor());
10533        let project = Project::test(fs, [], cx).await;
10534        let (workspace, cx) =
10535            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10536
10537        // Create several workspace items with single project entries, and two
10538        // workspace items with multiple project entries.
10539        let single_entry_items = (0..=4)
10540            .map(|project_entry_id| {
10541                cx.new(|cx| {
10542                    TestItem::new(cx)
10543                        .with_dirty(true)
10544                        .with_project_items(&[dirty_project_item(
10545                            project_entry_id,
10546                            &format!("{project_entry_id}.txt"),
10547                            cx,
10548                        )])
10549                })
10550            })
10551            .collect::<Vec<_>>();
10552        let item_2_3 = cx.new(|cx| {
10553            TestItem::new(cx)
10554                .with_dirty(true)
10555                .with_buffer_kind(ItemBufferKind::Multibuffer)
10556                .with_project_items(&[
10557                    single_entry_items[2].read(cx).project_items[0].clone(),
10558                    single_entry_items[3].read(cx).project_items[0].clone(),
10559                ])
10560        });
10561        let item_3_4 = cx.new(|cx| {
10562            TestItem::new(cx)
10563                .with_dirty(true)
10564                .with_buffer_kind(ItemBufferKind::Multibuffer)
10565                .with_project_items(&[
10566                    single_entry_items[3].read(cx).project_items[0].clone(),
10567                    single_entry_items[4].read(cx).project_items[0].clone(),
10568                ])
10569        });
10570
10571        // Create two panes that contain the following project entries:
10572        //   left pane:
10573        //     multi-entry items:   (2, 3)
10574        //     single-entry items:  0, 2, 3, 4
10575        //   right pane:
10576        //     single-entry items:  4, 1
10577        //     multi-entry items:   (3, 4)
10578        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10579            let left_pane = workspace.active_pane().clone();
10580            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10581            workspace.add_item_to_active_pane(
10582                single_entry_items[0].boxed_clone(),
10583                None,
10584                true,
10585                window,
10586                cx,
10587            );
10588            workspace.add_item_to_active_pane(
10589                single_entry_items[2].boxed_clone(),
10590                None,
10591                true,
10592                window,
10593                cx,
10594            );
10595            workspace.add_item_to_active_pane(
10596                single_entry_items[3].boxed_clone(),
10597                None,
10598                true,
10599                window,
10600                cx,
10601            );
10602            workspace.add_item_to_active_pane(
10603                single_entry_items[4].boxed_clone(),
10604                None,
10605                true,
10606                window,
10607                cx,
10608            );
10609
10610            let right_pane =
10611                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10612
10613            let boxed_clone = single_entry_items[1].boxed_clone();
10614            let right_pane = window.spawn(cx, async move |cx| {
10615                right_pane.await.inspect(|right_pane| {
10616                    right_pane
10617                        .update_in(cx, |pane, window, cx| {
10618                            pane.add_item(boxed_clone, true, true, None, window, cx);
10619                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10620                        })
10621                        .unwrap();
10622                })
10623            });
10624
10625            (left_pane, right_pane)
10626        });
10627        let right_pane = right_pane.await.unwrap();
10628        cx.focus(&right_pane);
10629
10630        let close = right_pane.update_in(cx, |pane, window, cx| {
10631            pane.close_all_items(&CloseAllItems::default(), window, cx)
10632                .unwrap()
10633        });
10634        cx.executor().run_until_parked();
10635
10636        let msg = cx.pending_prompt().unwrap().0;
10637        assert!(msg.contains("1.txt"));
10638        assert!(!msg.contains("2.txt"));
10639        assert!(!msg.contains("3.txt"));
10640        assert!(!msg.contains("4.txt"));
10641
10642        // With best-effort close, cancelling item 1 keeps it open but items 4
10643        // and (3,4) still close since their entries exist in left pane.
10644        cx.simulate_prompt_answer("Cancel");
10645        close.await;
10646
10647        right_pane.read_with(cx, |pane, _| {
10648            assert_eq!(pane.items_len(), 1);
10649        });
10650
10651        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10652        left_pane
10653            .update_in(cx, |left_pane, window, cx| {
10654                left_pane.close_item_by_id(
10655                    single_entry_items[3].entity_id(),
10656                    SaveIntent::Skip,
10657                    window,
10658                    cx,
10659                )
10660            })
10661            .await
10662            .unwrap();
10663
10664        let close = left_pane.update_in(cx, |pane, window, cx| {
10665            pane.close_all_items(&CloseAllItems::default(), window, cx)
10666                .unwrap()
10667        });
10668        cx.executor().run_until_parked();
10669
10670        let details = cx.pending_prompt().unwrap().1;
10671        assert!(details.contains("0.txt"));
10672        assert!(details.contains("3.txt"));
10673        assert!(details.contains("4.txt"));
10674        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10675        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10676        // assert!(!details.contains("2.txt"));
10677
10678        cx.simulate_prompt_answer("Save all");
10679        cx.executor().run_until_parked();
10680        close.await;
10681
10682        left_pane.read_with(cx, |pane, _| {
10683            assert_eq!(pane.items_len(), 0);
10684        });
10685    }
10686
10687    #[gpui::test]
10688    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10689        init_test(cx);
10690
10691        let fs = FakeFs::new(cx.executor());
10692        let project = Project::test(fs, [], cx).await;
10693        let (workspace, cx) =
10694            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10695        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10696
10697        let item = cx.new(|cx| {
10698            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10699        });
10700        let item_id = item.entity_id();
10701        workspace.update_in(cx, |workspace, window, cx| {
10702            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10703        });
10704
10705        // Autosave on window change.
10706        item.update(cx, |item, cx| {
10707            SettingsStore::update_global(cx, |settings, cx| {
10708                settings.update_user_settings(cx, |settings| {
10709                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10710                })
10711            });
10712            item.is_dirty = true;
10713        });
10714
10715        // Deactivating the window saves the file.
10716        cx.deactivate_window();
10717        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10718
10719        // Re-activating the window doesn't save the file.
10720        cx.update(|window, _| window.activate_window());
10721        cx.executor().run_until_parked();
10722        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10723
10724        // Autosave on focus change.
10725        item.update_in(cx, |item, window, cx| {
10726            cx.focus_self(window);
10727            SettingsStore::update_global(cx, |settings, cx| {
10728                settings.update_user_settings(cx, |settings| {
10729                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10730                })
10731            });
10732            item.is_dirty = true;
10733        });
10734        // Blurring the item saves the file.
10735        item.update_in(cx, |_, window, _| window.blur());
10736        cx.executor().run_until_parked();
10737        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
10738
10739        // Deactivating the window still saves the file.
10740        item.update_in(cx, |item, window, cx| {
10741            cx.focus_self(window);
10742            item.is_dirty = true;
10743        });
10744        cx.deactivate_window();
10745        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
10746
10747        // Autosave after delay.
10748        item.update(cx, |item, cx| {
10749            SettingsStore::update_global(cx, |settings, cx| {
10750                settings.update_user_settings(cx, |settings| {
10751                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
10752                        milliseconds: 500.into(),
10753                    });
10754                })
10755            });
10756            item.is_dirty = true;
10757            cx.emit(ItemEvent::Edit);
10758        });
10759
10760        // Delay hasn't fully expired, so the file is still dirty and unsaved.
10761        cx.executor().advance_clock(Duration::from_millis(250));
10762        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
10763
10764        // After delay expires, the file is saved.
10765        cx.executor().advance_clock(Duration::from_millis(250));
10766        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10767
10768        // Autosave after delay, should save earlier than delay if tab is closed
10769        item.update(cx, |item, cx| {
10770            item.is_dirty = true;
10771            cx.emit(ItemEvent::Edit);
10772        });
10773        cx.executor().advance_clock(Duration::from_millis(250));
10774        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10775
10776        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
10777        pane.update_in(cx, |pane, window, cx| {
10778            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10779        })
10780        .await
10781        .unwrap();
10782        assert!(!cx.has_pending_prompt());
10783        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10784
10785        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10786        workspace.update_in(cx, |workspace, window, cx| {
10787            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10788        });
10789        item.update_in(cx, |item, _window, cx| {
10790            item.is_dirty = true;
10791            for project_item in &mut item.project_items {
10792                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10793            }
10794        });
10795        cx.run_until_parked();
10796        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10797
10798        // Autosave on focus change, ensuring closing the tab counts as such.
10799        item.update(cx, |item, cx| {
10800            SettingsStore::update_global(cx, |settings, cx| {
10801                settings.update_user_settings(cx, |settings| {
10802                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10803                })
10804            });
10805            item.is_dirty = true;
10806            for project_item in &mut item.project_items {
10807                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10808            }
10809        });
10810
10811        pane.update_in(cx, |pane, window, cx| {
10812            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10813        })
10814        .await
10815        .unwrap();
10816        assert!(!cx.has_pending_prompt());
10817        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10818
10819        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10820        workspace.update_in(cx, |workspace, window, cx| {
10821            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10822        });
10823        item.update_in(cx, |item, window, cx| {
10824            item.project_items[0].update(cx, |item, _| {
10825                item.entry_id = None;
10826            });
10827            item.is_dirty = true;
10828            window.blur();
10829        });
10830        cx.run_until_parked();
10831        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10832
10833        // Ensure autosave is prevented for deleted files also when closing the buffer.
10834        let _close_items = pane.update_in(cx, |pane, window, cx| {
10835            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
10836        });
10837        cx.run_until_parked();
10838        assert!(cx.has_pending_prompt());
10839        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10840    }
10841
10842    #[gpui::test]
10843    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
10844        init_test(cx);
10845
10846        let fs = FakeFs::new(cx.executor());
10847        let project = Project::test(fs, [], cx).await;
10848        let (workspace, cx) =
10849            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10850
10851        // Create a multibuffer-like item with two child focus handles,
10852        // simulating individual buffer editors within a multibuffer.
10853        let item = cx.new(|cx| {
10854            TestItem::new(cx)
10855                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10856                .with_child_focus_handles(2, cx)
10857        });
10858        workspace.update_in(cx, |workspace, window, cx| {
10859            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10860        });
10861
10862        // Set autosave to OnFocusChange and focus the first child handle,
10863        // simulating the user's cursor being inside one of the multibuffer's excerpts.
10864        item.update_in(cx, |item, window, cx| {
10865            SettingsStore::update_global(cx, |settings, cx| {
10866                settings.update_user_settings(cx, |settings| {
10867                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10868                })
10869            });
10870            item.is_dirty = true;
10871            window.focus(&item.child_focus_handles[0], cx);
10872        });
10873        cx.executor().run_until_parked();
10874        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
10875
10876        // Moving focus from one child to another within the same item should
10877        // NOT trigger autosave — focus is still within the item's focus hierarchy.
10878        item.update_in(cx, |item, window, cx| {
10879            window.focus(&item.child_focus_handles[1], cx);
10880        });
10881        cx.executor().run_until_parked();
10882        item.read_with(cx, |item, _| {
10883            assert_eq!(
10884                item.save_count, 0,
10885                "Switching focus between children within the same item should not autosave"
10886            );
10887        });
10888
10889        // Blurring the item saves the file. This is the core regression scenario:
10890        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
10891        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
10892        // the leaf is always a child focus handle, so `on_blur` never detected
10893        // focus leaving the item.
10894        item.update_in(cx, |_, window, _| window.blur());
10895        cx.executor().run_until_parked();
10896        item.read_with(cx, |item, _| {
10897            assert_eq!(
10898                item.save_count, 1,
10899                "Blurring should trigger autosave when focus was on a child of the item"
10900            );
10901        });
10902
10903        // Deactivating the window should also trigger autosave when a child of
10904        // the multibuffer item currently owns focus.
10905        item.update_in(cx, |item, window, cx| {
10906            item.is_dirty = true;
10907            window.focus(&item.child_focus_handles[0], cx);
10908        });
10909        cx.executor().run_until_parked();
10910        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10911
10912        cx.deactivate_window();
10913        item.read_with(cx, |item, _| {
10914            assert_eq!(
10915                item.save_count, 2,
10916                "Deactivating window should trigger autosave when focus was on a child"
10917            );
10918        });
10919    }
10920
10921    #[gpui::test]
10922    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
10923        init_test(cx);
10924
10925        let fs = FakeFs::new(cx.executor());
10926
10927        let project = Project::test(fs, [], cx).await;
10928        let (workspace, cx) =
10929            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10930
10931        let item = cx.new(|cx| {
10932            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10933        });
10934        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10935        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
10936        let toolbar_notify_count = Rc::new(RefCell::new(0));
10937
10938        workspace.update_in(cx, |workspace, window, cx| {
10939            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10940            let toolbar_notification_count = toolbar_notify_count.clone();
10941            cx.observe_in(&toolbar, window, move |_, _, _, _| {
10942                *toolbar_notification_count.borrow_mut() += 1
10943            })
10944            .detach();
10945        });
10946
10947        pane.read_with(cx, |pane, _| {
10948            assert!(!pane.can_navigate_backward());
10949            assert!(!pane.can_navigate_forward());
10950        });
10951
10952        item.update_in(cx, |item, _, cx| {
10953            item.set_state("one".to_string(), cx);
10954        });
10955
10956        // Toolbar must be notified to re-render the navigation buttons
10957        assert_eq!(*toolbar_notify_count.borrow(), 1);
10958
10959        pane.read_with(cx, |pane, _| {
10960            assert!(pane.can_navigate_backward());
10961            assert!(!pane.can_navigate_forward());
10962        });
10963
10964        workspace
10965            .update_in(cx, |workspace, window, cx| {
10966                workspace.go_back(pane.downgrade(), window, cx)
10967            })
10968            .await
10969            .unwrap();
10970
10971        assert_eq!(*toolbar_notify_count.borrow(), 2);
10972        pane.read_with(cx, |pane, _| {
10973            assert!(!pane.can_navigate_backward());
10974            assert!(pane.can_navigate_forward());
10975        });
10976    }
10977
10978    #[gpui::test]
10979    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
10980        init_test(cx);
10981        let fs = FakeFs::new(cx.executor());
10982        let project = Project::test(fs, [], cx).await;
10983        let (multi_workspace, cx) =
10984            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
10985        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
10986
10987        workspace.update_in(cx, |workspace, window, cx| {
10988            let first_item = cx.new(|cx| {
10989                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10990            });
10991            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
10992            workspace.split_pane(
10993                workspace.active_pane().clone(),
10994                SplitDirection::Right,
10995                window,
10996                cx,
10997            );
10998            workspace.split_pane(
10999                workspace.active_pane().clone(),
11000                SplitDirection::Right,
11001                window,
11002                cx,
11003            );
11004        });
11005
11006        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11007            let panes = workspace.center.panes();
11008            assert!(panes.len() >= 2);
11009            (
11010                panes.first().expect("at least one pane").entity_id(),
11011                panes.last().expect("at least one pane").entity_id(),
11012            )
11013        });
11014
11015        workspace.update_in(cx, |workspace, window, cx| {
11016            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11017        });
11018        workspace.update(cx, |workspace, _| {
11019            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11020            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11021        });
11022
11023        cx.dispatch_action(ActivateLastPane);
11024
11025        workspace.update(cx, |workspace, _| {
11026            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11027        });
11028    }
11029
11030    #[gpui::test]
11031    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11032        init_test(cx);
11033        let fs = FakeFs::new(cx.executor());
11034
11035        let project = Project::test(fs, [], cx).await;
11036        let (workspace, cx) =
11037            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11038
11039        let panel = workspace.update_in(cx, |workspace, window, cx| {
11040            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11041            workspace.add_panel(panel.clone(), window, cx);
11042
11043            workspace
11044                .right_dock()
11045                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11046
11047            panel
11048        });
11049
11050        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11051        pane.update_in(cx, |pane, window, cx| {
11052            let item = cx.new(TestItem::new);
11053            pane.add_item(Box::new(item), true, true, None, window, cx);
11054        });
11055
11056        // Transfer focus from center to panel
11057        workspace.update_in(cx, |workspace, window, cx| {
11058            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11059        });
11060
11061        workspace.update_in(cx, |workspace, window, cx| {
11062            assert!(workspace.right_dock().read(cx).is_open());
11063            assert!(!panel.is_zoomed(window, cx));
11064            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11065        });
11066
11067        // Transfer focus from panel to center
11068        workspace.update_in(cx, |workspace, window, cx| {
11069            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11070        });
11071
11072        workspace.update_in(cx, |workspace, window, cx| {
11073            assert!(workspace.right_dock().read(cx).is_open());
11074            assert!(!panel.is_zoomed(window, cx));
11075            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11076        });
11077
11078        // Close the dock
11079        workspace.update_in(cx, |workspace, window, cx| {
11080            workspace.toggle_dock(DockPosition::Right, window, cx);
11081        });
11082
11083        workspace.update_in(cx, |workspace, window, cx| {
11084            assert!(!workspace.right_dock().read(cx).is_open());
11085            assert!(!panel.is_zoomed(window, cx));
11086            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11087        });
11088
11089        // Open the dock
11090        workspace.update_in(cx, |workspace, window, cx| {
11091            workspace.toggle_dock(DockPosition::Right, window, cx);
11092        });
11093
11094        workspace.update_in(cx, |workspace, window, cx| {
11095            assert!(workspace.right_dock().read(cx).is_open());
11096            assert!(!panel.is_zoomed(window, cx));
11097            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11098        });
11099
11100        // Focus and zoom panel
11101        panel.update_in(cx, |panel, window, cx| {
11102            cx.focus_self(window);
11103            panel.set_zoomed(true, window, cx)
11104        });
11105
11106        workspace.update_in(cx, |workspace, window, cx| {
11107            assert!(workspace.right_dock().read(cx).is_open());
11108            assert!(panel.is_zoomed(window, cx));
11109            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11110        });
11111
11112        // Transfer focus to the center closes the dock
11113        workspace.update_in(cx, |workspace, window, cx| {
11114            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11115        });
11116
11117        workspace.update_in(cx, |workspace, window, cx| {
11118            assert!(!workspace.right_dock().read(cx).is_open());
11119            assert!(panel.is_zoomed(window, cx));
11120            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11121        });
11122
11123        // Transferring focus back to the panel keeps it zoomed
11124        workspace.update_in(cx, |workspace, window, cx| {
11125            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11126        });
11127
11128        workspace.update_in(cx, |workspace, window, cx| {
11129            assert!(workspace.right_dock().read(cx).is_open());
11130            assert!(panel.is_zoomed(window, cx));
11131            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11132        });
11133
11134        // Close the dock while it is zoomed
11135        workspace.update_in(cx, |workspace, window, cx| {
11136            workspace.toggle_dock(DockPosition::Right, window, cx)
11137        });
11138
11139        workspace.update_in(cx, |workspace, window, cx| {
11140            assert!(!workspace.right_dock().read(cx).is_open());
11141            assert!(panel.is_zoomed(window, cx));
11142            assert!(workspace.zoomed.is_none());
11143            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11144        });
11145
11146        // Opening the dock, when it's zoomed, retains focus
11147        workspace.update_in(cx, |workspace, window, cx| {
11148            workspace.toggle_dock(DockPosition::Right, window, cx)
11149        });
11150
11151        workspace.update_in(cx, |workspace, window, cx| {
11152            assert!(workspace.right_dock().read(cx).is_open());
11153            assert!(panel.is_zoomed(window, cx));
11154            assert!(workspace.zoomed.is_some());
11155            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11156        });
11157
11158        // Unzoom and close the panel, zoom the active pane.
11159        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11160        workspace.update_in(cx, |workspace, window, cx| {
11161            workspace.toggle_dock(DockPosition::Right, window, cx)
11162        });
11163        pane.update_in(cx, |pane, window, cx| {
11164            pane.toggle_zoom(&Default::default(), window, cx)
11165        });
11166
11167        // Opening a dock unzooms the pane.
11168        workspace.update_in(cx, |workspace, window, cx| {
11169            workspace.toggle_dock(DockPosition::Right, window, cx)
11170        });
11171        workspace.update_in(cx, |workspace, window, cx| {
11172            let pane = pane.read(cx);
11173            assert!(!pane.is_zoomed());
11174            assert!(!pane.focus_handle(cx).is_focused(window));
11175            assert!(workspace.right_dock().read(cx).is_open());
11176            assert!(workspace.zoomed.is_none());
11177        });
11178    }
11179
11180    #[gpui::test]
11181    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11182        init_test(cx);
11183        let fs = FakeFs::new(cx.executor());
11184
11185        let project = Project::test(fs, [], cx).await;
11186        let (workspace, cx) =
11187            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11188
11189        let panel = workspace.update_in(cx, |workspace, window, cx| {
11190            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11191            workspace.add_panel(panel.clone(), window, cx);
11192            panel
11193        });
11194
11195        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11196        pane.update_in(cx, |pane, window, cx| {
11197            let item = cx.new(TestItem::new);
11198            pane.add_item(Box::new(item), true, true, None, window, cx);
11199        });
11200
11201        // Enable close_panel_on_toggle
11202        cx.update_global(|store: &mut SettingsStore, cx| {
11203            store.update_user_settings(cx, |settings| {
11204                settings.workspace.close_panel_on_toggle = Some(true);
11205            });
11206        });
11207
11208        // Panel starts closed. Toggling should open and focus it.
11209        workspace.update_in(cx, |workspace, window, cx| {
11210            assert!(!workspace.right_dock().read(cx).is_open());
11211            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11212        });
11213
11214        workspace.update_in(cx, |workspace, window, cx| {
11215            assert!(
11216                workspace.right_dock().read(cx).is_open(),
11217                "Dock should be open after toggling from center"
11218            );
11219            assert!(
11220                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11221                "Panel should be focused after toggling from center"
11222            );
11223        });
11224
11225        // Panel is open and focused. Toggling should close the panel and
11226        // return focus to the center.
11227        workspace.update_in(cx, |workspace, window, cx| {
11228            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11229        });
11230
11231        workspace.update_in(cx, |workspace, window, cx| {
11232            assert!(
11233                !workspace.right_dock().read(cx).is_open(),
11234                "Dock should be closed after toggling from focused panel"
11235            );
11236            assert!(
11237                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11238                "Panel should not be focused after toggling from focused panel"
11239            );
11240        });
11241
11242        // Open the dock and focus something else so the panel is open but not
11243        // focused. Toggling should focus the panel (not close it).
11244        workspace.update_in(cx, |workspace, window, cx| {
11245            workspace
11246                .right_dock()
11247                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11248            window.focus(&pane.read(cx).focus_handle(cx), cx);
11249        });
11250
11251        workspace.update_in(cx, |workspace, window, cx| {
11252            assert!(workspace.right_dock().read(cx).is_open());
11253            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11254            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11255        });
11256
11257        workspace.update_in(cx, |workspace, window, cx| {
11258            assert!(
11259                workspace.right_dock().read(cx).is_open(),
11260                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11261            );
11262            assert!(
11263                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11264                "Panel should be focused after toggling an open-but-unfocused panel"
11265            );
11266        });
11267
11268        // Now disable the setting and verify the original behavior: toggling
11269        // from a focused panel moves focus to center but leaves the dock open.
11270        cx.update_global(|store: &mut SettingsStore, cx| {
11271            store.update_user_settings(cx, |settings| {
11272                settings.workspace.close_panel_on_toggle = Some(false);
11273            });
11274        });
11275
11276        workspace.update_in(cx, |workspace, window, cx| {
11277            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11278        });
11279
11280        workspace.update_in(cx, |workspace, window, cx| {
11281            assert!(
11282                workspace.right_dock().read(cx).is_open(),
11283                "Dock should remain open when setting is disabled"
11284            );
11285            assert!(
11286                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11287                "Panel should not be focused after toggling with setting disabled"
11288            );
11289        });
11290    }
11291
11292    #[gpui::test]
11293    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11294        init_test(cx);
11295        let fs = FakeFs::new(cx.executor());
11296
11297        let project = Project::test(fs, [], cx).await;
11298        let (workspace, cx) =
11299            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11300
11301        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11302            workspace.active_pane().clone()
11303        });
11304
11305        // Add an item to the pane so it can be zoomed
11306        workspace.update_in(cx, |workspace, window, cx| {
11307            let item = cx.new(TestItem::new);
11308            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11309        });
11310
11311        // Initially not zoomed
11312        workspace.update_in(cx, |workspace, _window, cx| {
11313            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11314            assert!(
11315                workspace.zoomed.is_none(),
11316                "Workspace should track no zoomed pane"
11317            );
11318            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11319        });
11320
11321        // Zoom In
11322        pane.update_in(cx, |pane, window, cx| {
11323            pane.zoom_in(&crate::ZoomIn, window, cx);
11324        });
11325
11326        workspace.update_in(cx, |workspace, window, cx| {
11327            assert!(
11328                pane.read(cx).is_zoomed(),
11329                "Pane should be zoomed after ZoomIn"
11330            );
11331            assert!(
11332                workspace.zoomed.is_some(),
11333                "Workspace should track the zoomed pane"
11334            );
11335            assert!(
11336                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11337                "ZoomIn should focus the pane"
11338            );
11339        });
11340
11341        // Zoom In again is a no-op
11342        pane.update_in(cx, |pane, window, cx| {
11343            pane.zoom_in(&crate::ZoomIn, window, cx);
11344        });
11345
11346        workspace.update_in(cx, |workspace, window, cx| {
11347            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11348            assert!(
11349                workspace.zoomed.is_some(),
11350                "Workspace still tracks zoomed pane"
11351            );
11352            assert!(
11353                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11354                "Pane remains focused after repeated ZoomIn"
11355            );
11356        });
11357
11358        // Zoom Out
11359        pane.update_in(cx, |pane, window, cx| {
11360            pane.zoom_out(&crate::ZoomOut, window, cx);
11361        });
11362
11363        workspace.update_in(cx, |workspace, _window, cx| {
11364            assert!(
11365                !pane.read(cx).is_zoomed(),
11366                "Pane should unzoom after ZoomOut"
11367            );
11368            assert!(
11369                workspace.zoomed.is_none(),
11370                "Workspace clears zoom tracking after ZoomOut"
11371            );
11372        });
11373
11374        // Zoom Out again is a no-op
11375        pane.update_in(cx, |pane, window, cx| {
11376            pane.zoom_out(&crate::ZoomOut, window, cx);
11377        });
11378
11379        workspace.update_in(cx, |workspace, _window, cx| {
11380            assert!(
11381                !pane.read(cx).is_zoomed(),
11382                "Second ZoomOut keeps pane unzoomed"
11383            );
11384            assert!(
11385                workspace.zoomed.is_none(),
11386                "Workspace remains without zoomed pane"
11387            );
11388        });
11389    }
11390
11391    #[gpui::test]
11392    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11393        init_test(cx);
11394        let fs = FakeFs::new(cx.executor());
11395
11396        let project = Project::test(fs, [], cx).await;
11397        let (workspace, cx) =
11398            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11399        workspace.update_in(cx, |workspace, window, cx| {
11400            // Open two docks
11401            let left_dock = workspace.dock_at_position(DockPosition::Left);
11402            let right_dock = workspace.dock_at_position(DockPosition::Right);
11403
11404            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11405            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11406
11407            assert!(left_dock.read(cx).is_open());
11408            assert!(right_dock.read(cx).is_open());
11409        });
11410
11411        workspace.update_in(cx, |workspace, window, cx| {
11412            // Toggle all docks - should close both
11413            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11414
11415            let left_dock = workspace.dock_at_position(DockPosition::Left);
11416            let right_dock = workspace.dock_at_position(DockPosition::Right);
11417            assert!(!left_dock.read(cx).is_open());
11418            assert!(!right_dock.read(cx).is_open());
11419        });
11420
11421        workspace.update_in(cx, |workspace, window, cx| {
11422            // Toggle again - should reopen both
11423            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11424
11425            let left_dock = workspace.dock_at_position(DockPosition::Left);
11426            let right_dock = workspace.dock_at_position(DockPosition::Right);
11427            assert!(left_dock.read(cx).is_open());
11428            assert!(right_dock.read(cx).is_open());
11429        });
11430    }
11431
11432    #[gpui::test]
11433    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11434        init_test(cx);
11435        let fs = FakeFs::new(cx.executor());
11436
11437        let project = Project::test(fs, [], cx).await;
11438        let (workspace, cx) =
11439            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11440        workspace.update_in(cx, |workspace, window, cx| {
11441            // Open two docks
11442            let left_dock = workspace.dock_at_position(DockPosition::Left);
11443            let right_dock = workspace.dock_at_position(DockPosition::Right);
11444
11445            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11446            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11447
11448            assert!(left_dock.read(cx).is_open());
11449            assert!(right_dock.read(cx).is_open());
11450        });
11451
11452        workspace.update_in(cx, |workspace, window, cx| {
11453            // Close them manually
11454            workspace.toggle_dock(DockPosition::Left, window, cx);
11455            workspace.toggle_dock(DockPosition::Right, window, cx);
11456
11457            let left_dock = workspace.dock_at_position(DockPosition::Left);
11458            let right_dock = workspace.dock_at_position(DockPosition::Right);
11459            assert!(!left_dock.read(cx).is_open());
11460            assert!(!right_dock.read(cx).is_open());
11461        });
11462
11463        workspace.update_in(cx, |workspace, window, cx| {
11464            // Toggle all docks - only last closed (right dock) should reopen
11465            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11466
11467            let left_dock = workspace.dock_at_position(DockPosition::Left);
11468            let right_dock = workspace.dock_at_position(DockPosition::Right);
11469            assert!(!left_dock.read(cx).is_open());
11470            assert!(right_dock.read(cx).is_open());
11471        });
11472    }
11473
11474    #[gpui::test]
11475    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
11476        init_test(cx);
11477        let fs = FakeFs::new(cx.executor());
11478        let project = Project::test(fs, [], cx).await;
11479        let (multi_workspace, cx) =
11480            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11481        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11482
11483        // Open two docks (left and right) with one panel each
11484        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
11485            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11486            workspace.add_panel(left_panel.clone(), window, cx);
11487
11488            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11489            workspace.add_panel(right_panel.clone(), window, cx);
11490
11491            workspace.toggle_dock(DockPosition::Left, window, cx);
11492            workspace.toggle_dock(DockPosition::Right, window, cx);
11493
11494            // Verify initial state
11495            assert!(
11496                workspace.left_dock().read(cx).is_open(),
11497                "Left dock should be open"
11498            );
11499            assert_eq!(
11500                workspace
11501                    .left_dock()
11502                    .read(cx)
11503                    .visible_panel()
11504                    .unwrap()
11505                    .panel_id(),
11506                left_panel.panel_id(),
11507                "Left panel should be visible in left dock"
11508            );
11509            assert!(
11510                workspace.right_dock().read(cx).is_open(),
11511                "Right dock should be open"
11512            );
11513            assert_eq!(
11514                workspace
11515                    .right_dock()
11516                    .read(cx)
11517                    .visible_panel()
11518                    .unwrap()
11519                    .panel_id(),
11520                right_panel.panel_id(),
11521                "Right panel should be visible in right dock"
11522            );
11523            assert!(
11524                !workspace.bottom_dock().read(cx).is_open(),
11525                "Bottom dock should be closed"
11526            );
11527
11528            (left_panel, right_panel)
11529        });
11530
11531        // Focus the left panel and move it to the next position (bottom dock)
11532        workspace.update_in(cx, |workspace, window, cx| {
11533            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
11534            assert!(
11535                left_panel.read(cx).focus_handle(cx).is_focused(window),
11536                "Left panel should be focused"
11537            );
11538        });
11539
11540        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11541
11542        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
11543        workspace.update(cx, |workspace, cx| {
11544            assert!(
11545                !workspace.left_dock().read(cx).is_open(),
11546                "Left dock should be closed"
11547            );
11548            assert!(
11549                workspace.bottom_dock().read(cx).is_open(),
11550                "Bottom dock should now be open"
11551            );
11552            assert_eq!(
11553                left_panel.read(cx).position,
11554                DockPosition::Bottom,
11555                "Left panel should now be in the bottom dock"
11556            );
11557            assert_eq!(
11558                workspace
11559                    .bottom_dock()
11560                    .read(cx)
11561                    .visible_panel()
11562                    .unwrap()
11563                    .panel_id(),
11564                left_panel.panel_id(),
11565                "Left panel should be the visible panel in the bottom dock"
11566            );
11567        });
11568
11569        // Toggle all docks off
11570        workspace.update_in(cx, |workspace, window, cx| {
11571            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11572            assert!(
11573                !workspace.left_dock().read(cx).is_open(),
11574                "Left dock should be closed"
11575            );
11576            assert!(
11577                !workspace.right_dock().read(cx).is_open(),
11578                "Right dock should be closed"
11579            );
11580            assert!(
11581                !workspace.bottom_dock().read(cx).is_open(),
11582                "Bottom dock should be closed"
11583            );
11584        });
11585
11586        // Toggle all docks back on and verify positions are restored
11587        workspace.update_in(cx, |workspace, window, cx| {
11588            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11589            assert!(
11590                !workspace.left_dock().read(cx).is_open(),
11591                "Left dock should remain closed"
11592            );
11593            assert!(
11594                workspace.right_dock().read(cx).is_open(),
11595                "Right dock should remain open"
11596            );
11597            assert!(
11598                workspace.bottom_dock().read(cx).is_open(),
11599                "Bottom dock should remain open"
11600            );
11601            assert_eq!(
11602                left_panel.read(cx).position,
11603                DockPosition::Bottom,
11604                "Left panel should remain in the bottom dock"
11605            );
11606            assert_eq!(
11607                right_panel.read(cx).position,
11608                DockPosition::Right,
11609                "Right panel should remain in the right dock"
11610            );
11611            assert_eq!(
11612                workspace
11613                    .bottom_dock()
11614                    .read(cx)
11615                    .visible_panel()
11616                    .unwrap()
11617                    .panel_id(),
11618                left_panel.panel_id(),
11619                "Left panel should be the visible panel in the right dock"
11620            );
11621        });
11622    }
11623
11624    #[gpui::test]
11625    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
11626        init_test(cx);
11627
11628        let fs = FakeFs::new(cx.executor());
11629
11630        let project = Project::test(fs, None, cx).await;
11631        let (workspace, cx) =
11632            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11633
11634        // Let's arrange the panes like this:
11635        //
11636        // +-----------------------+
11637        // |         top           |
11638        // +------+--------+-------+
11639        // | left | center | right |
11640        // +------+--------+-------+
11641        // |        bottom         |
11642        // +-----------------------+
11643
11644        let top_item = cx.new(|cx| {
11645            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
11646        });
11647        let bottom_item = cx.new(|cx| {
11648            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
11649        });
11650        let left_item = cx.new(|cx| {
11651            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
11652        });
11653        let right_item = cx.new(|cx| {
11654            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
11655        });
11656        let center_item = cx.new(|cx| {
11657            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
11658        });
11659
11660        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11661            let top_pane_id = workspace.active_pane().entity_id();
11662            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
11663            workspace.split_pane(
11664                workspace.active_pane().clone(),
11665                SplitDirection::Down,
11666                window,
11667                cx,
11668            );
11669            top_pane_id
11670        });
11671        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11672            let bottom_pane_id = workspace.active_pane().entity_id();
11673            workspace.add_item_to_active_pane(
11674                Box::new(bottom_item.clone()),
11675                None,
11676                false,
11677                window,
11678                cx,
11679            );
11680            workspace.split_pane(
11681                workspace.active_pane().clone(),
11682                SplitDirection::Up,
11683                window,
11684                cx,
11685            );
11686            bottom_pane_id
11687        });
11688        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11689            let left_pane_id = workspace.active_pane().entity_id();
11690            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
11691            workspace.split_pane(
11692                workspace.active_pane().clone(),
11693                SplitDirection::Right,
11694                window,
11695                cx,
11696            );
11697            left_pane_id
11698        });
11699        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11700            let right_pane_id = workspace.active_pane().entity_id();
11701            workspace.add_item_to_active_pane(
11702                Box::new(right_item.clone()),
11703                None,
11704                false,
11705                window,
11706                cx,
11707            );
11708            workspace.split_pane(
11709                workspace.active_pane().clone(),
11710                SplitDirection::Left,
11711                window,
11712                cx,
11713            );
11714            right_pane_id
11715        });
11716        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11717            let center_pane_id = workspace.active_pane().entity_id();
11718            workspace.add_item_to_active_pane(
11719                Box::new(center_item.clone()),
11720                None,
11721                false,
11722                window,
11723                cx,
11724            );
11725            center_pane_id
11726        });
11727        cx.executor().run_until_parked();
11728
11729        workspace.update_in(cx, |workspace, window, cx| {
11730            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
11731
11732            // Join into next from center pane into right
11733            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11734        });
11735
11736        workspace.update_in(cx, |workspace, window, cx| {
11737            let active_pane = workspace.active_pane();
11738            assert_eq!(right_pane_id, active_pane.entity_id());
11739            assert_eq!(2, active_pane.read(cx).items_len());
11740            let item_ids_in_pane =
11741                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11742            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11743            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11744
11745            // Join into next from right pane into bottom
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!(bottom_pane_id, active_pane.entity_id());
11752            assert_eq!(3, 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
11759            // Join into next from bottom pane into left
11760            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11761        });
11762
11763        workspace.update_in(cx, |workspace, window, cx| {
11764            let active_pane = workspace.active_pane();
11765            assert_eq!(left_pane_id, active_pane.entity_id());
11766            assert_eq!(4, active_pane.read(cx).items_len());
11767            let item_ids_in_pane =
11768                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11769            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11770            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11771            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11772            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11773
11774            // Join into next from left pane into top
11775            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11776        });
11777
11778        workspace.update_in(cx, |workspace, window, cx| {
11779            let active_pane = workspace.active_pane();
11780            assert_eq!(top_pane_id, active_pane.entity_id());
11781            assert_eq!(5, active_pane.read(cx).items_len());
11782            let item_ids_in_pane =
11783                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11784            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11785            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11786            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11787            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11788            assert!(item_ids_in_pane.contains(&top_item.item_id()));
11789
11790            // Single pane left: no-op
11791            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
11792        });
11793
11794        workspace.update(cx, |workspace, _cx| {
11795            let active_pane = workspace.active_pane();
11796            assert_eq!(top_pane_id, active_pane.entity_id());
11797        });
11798    }
11799
11800    fn add_an_item_to_active_pane(
11801        cx: &mut VisualTestContext,
11802        workspace: &Entity<Workspace>,
11803        item_id: u64,
11804    ) -> Entity<TestItem> {
11805        let item = cx.new(|cx| {
11806            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
11807                item_id,
11808                "item{item_id}.txt",
11809                cx,
11810            )])
11811        });
11812        workspace.update_in(cx, |workspace, window, cx| {
11813            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
11814        });
11815        item
11816    }
11817
11818    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
11819        workspace.update_in(cx, |workspace, window, cx| {
11820            workspace.split_pane(
11821                workspace.active_pane().clone(),
11822                SplitDirection::Right,
11823                window,
11824                cx,
11825            )
11826        })
11827    }
11828
11829    #[gpui::test]
11830    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
11831        init_test(cx);
11832        let fs = FakeFs::new(cx.executor());
11833        let project = Project::test(fs, None, cx).await;
11834        let (workspace, cx) =
11835            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11836
11837        add_an_item_to_active_pane(cx, &workspace, 1);
11838        split_pane(cx, &workspace);
11839        add_an_item_to_active_pane(cx, &workspace, 2);
11840        split_pane(cx, &workspace); // empty pane
11841        split_pane(cx, &workspace);
11842        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
11843
11844        cx.executor().run_until_parked();
11845
11846        workspace.update(cx, |workspace, cx| {
11847            let num_panes = workspace.panes().len();
11848            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11849            let active_item = workspace
11850                .active_pane()
11851                .read(cx)
11852                .active_item()
11853                .expect("item is in focus");
11854
11855            assert_eq!(num_panes, 4);
11856            assert_eq!(num_items_in_current_pane, 1);
11857            assert_eq!(active_item.item_id(), last_item.item_id());
11858        });
11859
11860        workspace.update_in(cx, |workspace, window, cx| {
11861            workspace.join_all_panes(window, cx);
11862        });
11863
11864        workspace.update(cx, |workspace, cx| {
11865            let num_panes = workspace.panes().len();
11866            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11867            let active_item = workspace
11868                .active_pane()
11869                .read(cx)
11870                .active_item()
11871                .expect("item is in focus");
11872
11873            assert_eq!(num_panes, 1);
11874            assert_eq!(num_items_in_current_pane, 3);
11875            assert_eq!(active_item.item_id(), last_item.item_id());
11876        });
11877    }
11878    struct TestModal(FocusHandle);
11879
11880    impl TestModal {
11881        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
11882            Self(cx.focus_handle())
11883        }
11884    }
11885
11886    impl EventEmitter<DismissEvent> for TestModal {}
11887
11888    impl Focusable for TestModal {
11889        fn focus_handle(&self, _cx: &App) -> FocusHandle {
11890            self.0.clone()
11891        }
11892    }
11893
11894    impl ModalView for TestModal {}
11895
11896    impl Render for TestModal {
11897        fn render(
11898            &mut self,
11899            _window: &mut Window,
11900            _cx: &mut Context<TestModal>,
11901        ) -> impl IntoElement {
11902            div().track_focus(&self.0)
11903        }
11904    }
11905
11906    #[gpui::test]
11907    async fn test_panels(cx: &mut gpui::TestAppContext) {
11908        init_test(cx);
11909        let fs = FakeFs::new(cx.executor());
11910
11911        let project = Project::test(fs, [], cx).await;
11912        let (multi_workspace, cx) =
11913            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11914        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11915
11916        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
11917            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11918            workspace.add_panel(panel_1.clone(), window, cx);
11919            workspace.toggle_dock(DockPosition::Left, window, cx);
11920            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11921            workspace.add_panel(panel_2.clone(), window, cx);
11922            workspace.toggle_dock(DockPosition::Right, window, cx);
11923
11924            let left_dock = workspace.left_dock();
11925            assert_eq!(
11926                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11927                panel_1.panel_id()
11928            );
11929            assert_eq!(
11930                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11931                panel_1.size(window, cx)
11932            );
11933
11934            left_dock.update(cx, |left_dock, cx| {
11935                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
11936            });
11937            assert_eq!(
11938                workspace
11939                    .right_dock()
11940                    .read(cx)
11941                    .visible_panel()
11942                    .unwrap()
11943                    .panel_id(),
11944                panel_2.panel_id(),
11945            );
11946
11947            (panel_1, panel_2)
11948        });
11949
11950        // Move panel_1 to the right
11951        panel_1.update_in(cx, |panel_1, window, cx| {
11952            panel_1.set_position(DockPosition::Right, window, cx)
11953        });
11954
11955        workspace.update_in(cx, |workspace, window, cx| {
11956            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
11957            // Since it was the only panel on the left, the left dock should now be closed.
11958            assert!(!workspace.left_dock().read(cx).is_open());
11959            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
11960            let right_dock = workspace.right_dock();
11961            assert_eq!(
11962                right_dock.read(cx).visible_panel().unwrap().panel_id(),
11963                panel_1.panel_id()
11964            );
11965            assert_eq!(
11966                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
11967                px(1337.)
11968            );
11969
11970            // Now we move panel_2 to the left
11971            panel_2.set_position(DockPosition::Left, window, cx);
11972        });
11973
11974        workspace.update(cx, |workspace, cx| {
11975            // Since panel_2 was not visible on the right, we don't open the left dock.
11976            assert!(!workspace.left_dock().read(cx).is_open());
11977            // And the right dock is unaffected in its displaying of panel_1
11978            assert!(workspace.right_dock().read(cx).is_open());
11979            assert_eq!(
11980                workspace
11981                    .right_dock()
11982                    .read(cx)
11983                    .visible_panel()
11984                    .unwrap()
11985                    .panel_id(),
11986                panel_1.panel_id(),
11987            );
11988        });
11989
11990        // Move panel_1 back to the left
11991        panel_1.update_in(cx, |panel_1, window, cx| {
11992            panel_1.set_position(DockPosition::Left, window, cx)
11993        });
11994
11995        workspace.update_in(cx, |workspace, window, cx| {
11996            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
11997            let left_dock = workspace.left_dock();
11998            assert!(left_dock.read(cx).is_open());
11999            assert_eq!(
12000                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12001                panel_1.panel_id()
12002            );
12003            assert_eq!(
12004                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
12005                px(1337.)
12006            );
12007            // And the right dock should be closed as it no longer has any panels.
12008            assert!(!workspace.right_dock().read(cx).is_open());
12009
12010            // Now we move panel_1 to the bottom
12011            panel_1.set_position(DockPosition::Bottom, window, cx);
12012        });
12013
12014        workspace.update_in(cx, |workspace, window, cx| {
12015            // Since panel_1 was visible on the left, we close the left dock.
12016            assert!(!workspace.left_dock().read(cx).is_open());
12017            // The bottom dock is sized based on the panel's default size,
12018            // since the panel orientation changed from vertical to horizontal.
12019            let bottom_dock = workspace.bottom_dock();
12020            assert_eq!(
12021                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
12022                panel_1.size(window, cx),
12023            );
12024            // Close bottom dock and move panel_1 back to the left.
12025            bottom_dock.update(cx, |bottom_dock, cx| {
12026                bottom_dock.set_open(false, window, cx)
12027            });
12028            panel_1.set_position(DockPosition::Left, window, cx);
12029        });
12030
12031        // Emit activated event on panel 1
12032        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
12033
12034        // Now the left dock is open and panel_1 is active and focused.
12035        workspace.update_in(cx, |workspace, window, 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            assert!(panel_1.focus_handle(cx).is_focused(window));
12043        });
12044
12045        // Emit closed event on panel 2, which is not active
12046        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12047
12048        // Wo don't close the left dock, because panel_2 wasn't the active panel
12049        workspace.update(cx, |workspace, cx| {
12050            let left_dock = workspace.left_dock();
12051            assert!(left_dock.read(cx).is_open());
12052            assert_eq!(
12053                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12054                panel_1.panel_id(),
12055            );
12056        });
12057
12058        // Emitting a ZoomIn event shows the panel as zoomed.
12059        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
12060        workspace.read_with(cx, |workspace, _| {
12061            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12062            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
12063        });
12064
12065        // Move panel to another dock while it is zoomed
12066        panel_1.update_in(cx, |panel, window, cx| {
12067            panel.set_position(DockPosition::Right, window, cx)
12068        });
12069        workspace.read_with(cx, |workspace, _| {
12070            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12071
12072            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12073        });
12074
12075        // This is a helper for getting a:
12076        // - valid focus on an element,
12077        // - that isn't a part of the panes and panels system of the Workspace,
12078        // - and doesn't trigger the 'on_focus_lost' API.
12079        let focus_other_view = {
12080            let workspace = workspace.clone();
12081            move |cx: &mut VisualTestContext| {
12082                workspace.update_in(cx, |workspace, window, cx| {
12083                    if workspace.active_modal::<TestModal>(cx).is_some() {
12084                        workspace.toggle_modal(window, cx, TestModal::new);
12085                        workspace.toggle_modal(window, cx, TestModal::new);
12086                    } else {
12087                        workspace.toggle_modal(window, cx, TestModal::new);
12088                    }
12089                })
12090            }
12091        };
12092
12093        // If focus is transferred to another view that's not a panel or another pane, we still show
12094        // the panel as zoomed.
12095        focus_other_view(cx);
12096        workspace.read_with(cx, |workspace, _| {
12097            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12098            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12099        });
12100
12101        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
12102        workspace.update_in(cx, |_workspace, window, cx| {
12103            cx.focus_self(window);
12104        });
12105        workspace.read_with(cx, |workspace, _| {
12106            assert_eq!(workspace.zoomed, None);
12107            assert_eq!(workspace.zoomed_position, None);
12108        });
12109
12110        // If focus is transferred again to another view that's not a panel or a pane, we won't
12111        // show the panel as zoomed because it wasn't zoomed before.
12112        focus_other_view(cx);
12113        workspace.read_with(cx, |workspace, _| {
12114            assert_eq!(workspace.zoomed, None);
12115            assert_eq!(workspace.zoomed_position, None);
12116        });
12117
12118        // When the panel is activated, it is zoomed again.
12119        cx.dispatch_action(ToggleRightDock);
12120        workspace.read_with(cx, |workspace, _| {
12121            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12122            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12123        });
12124
12125        // Emitting a ZoomOut event unzooms the panel.
12126        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
12127        workspace.read_with(cx, |workspace, _| {
12128            assert_eq!(workspace.zoomed, None);
12129            assert_eq!(workspace.zoomed_position, None);
12130        });
12131
12132        // Emit closed event on panel 1, which is active
12133        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12134
12135        // Now the left dock is closed, because panel_1 was the active panel
12136        workspace.update(cx, |workspace, cx| {
12137            let right_dock = workspace.right_dock();
12138            assert!(!right_dock.read(cx).is_open());
12139        });
12140    }
12141
12142    #[gpui::test]
12143    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
12144        init_test(cx);
12145
12146        let fs = FakeFs::new(cx.background_executor.clone());
12147        let project = Project::test(fs, [], cx).await;
12148        let (workspace, cx) =
12149            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12150        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12151
12152        let dirty_regular_buffer = cx.new(|cx| {
12153            TestItem::new(cx)
12154                .with_dirty(true)
12155                .with_label("1.txt")
12156                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12157        });
12158        let dirty_regular_buffer_2 = cx.new(|cx| {
12159            TestItem::new(cx)
12160                .with_dirty(true)
12161                .with_label("2.txt")
12162                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12163        });
12164        let dirty_multi_buffer_with_both = cx.new(|cx| {
12165            TestItem::new(cx)
12166                .with_dirty(true)
12167                .with_buffer_kind(ItemBufferKind::Multibuffer)
12168                .with_label("Fake Project Search")
12169                .with_project_items(&[
12170                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12171                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12172                ])
12173        });
12174        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12175        workspace.update_in(cx, |workspace, window, cx| {
12176            workspace.add_item(
12177                pane.clone(),
12178                Box::new(dirty_regular_buffer.clone()),
12179                None,
12180                false,
12181                false,
12182                window,
12183                cx,
12184            );
12185            workspace.add_item(
12186                pane.clone(),
12187                Box::new(dirty_regular_buffer_2.clone()),
12188                None,
12189                false,
12190                false,
12191                window,
12192                cx,
12193            );
12194            workspace.add_item(
12195                pane.clone(),
12196                Box::new(dirty_multi_buffer_with_both.clone()),
12197                None,
12198                false,
12199                false,
12200                window,
12201                cx,
12202            );
12203        });
12204
12205        pane.update_in(cx, |pane, window, cx| {
12206            pane.activate_item(2, true, true, window, cx);
12207            assert_eq!(
12208                pane.active_item().unwrap().item_id(),
12209                multi_buffer_with_both_files_id,
12210                "Should select the multi buffer in the pane"
12211            );
12212        });
12213        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12214            pane.close_other_items(
12215                &CloseOtherItems {
12216                    save_intent: Some(SaveIntent::Save),
12217                    close_pinned: true,
12218                },
12219                None,
12220                window,
12221                cx,
12222            )
12223        });
12224        cx.background_executor.run_until_parked();
12225        assert!(!cx.has_pending_prompt());
12226        close_all_but_multi_buffer_task
12227            .await
12228            .expect("Closing all buffers but the multi buffer failed");
12229        pane.update(cx, |pane, cx| {
12230            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
12231            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
12232            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
12233            assert_eq!(pane.items_len(), 1);
12234            assert_eq!(
12235                pane.active_item().unwrap().item_id(),
12236                multi_buffer_with_both_files_id,
12237                "Should have only the multi buffer left in the pane"
12238            );
12239            assert!(
12240                dirty_multi_buffer_with_both.read(cx).is_dirty,
12241                "The multi buffer containing the unsaved buffer should still be dirty"
12242            );
12243        });
12244
12245        dirty_regular_buffer.update(cx, |buffer, cx| {
12246            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
12247        });
12248
12249        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12250            pane.close_active_item(
12251                &CloseActiveItem {
12252                    save_intent: Some(SaveIntent::Close),
12253                    close_pinned: false,
12254                },
12255                window,
12256                cx,
12257            )
12258        });
12259        cx.background_executor.run_until_parked();
12260        assert!(
12261            cx.has_pending_prompt(),
12262            "Dirty multi buffer should prompt a save dialog"
12263        );
12264        cx.simulate_prompt_answer("Save");
12265        cx.background_executor.run_until_parked();
12266        close_multi_buffer_task
12267            .await
12268            .expect("Closing the multi buffer failed");
12269        pane.update(cx, |pane, cx| {
12270            assert_eq!(
12271                dirty_multi_buffer_with_both.read(cx).save_count,
12272                1,
12273                "Multi buffer item should get be saved"
12274            );
12275            // Test impl does not save inner items, so we do not assert them
12276            assert_eq!(
12277                pane.items_len(),
12278                0,
12279                "No more items should be left in the pane"
12280            );
12281            assert!(pane.active_item().is_none());
12282        });
12283    }
12284
12285    #[gpui::test]
12286    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
12287        cx: &mut TestAppContext,
12288    ) {
12289        init_test(cx);
12290
12291        let fs = FakeFs::new(cx.background_executor.clone());
12292        let project = Project::test(fs, [], cx).await;
12293        let (workspace, cx) =
12294            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12295        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12296
12297        let dirty_regular_buffer = cx.new(|cx| {
12298            TestItem::new(cx)
12299                .with_dirty(true)
12300                .with_label("1.txt")
12301                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12302        });
12303        let dirty_regular_buffer_2 = cx.new(|cx| {
12304            TestItem::new(cx)
12305                .with_dirty(true)
12306                .with_label("2.txt")
12307                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12308        });
12309        let clear_regular_buffer = cx.new(|cx| {
12310            TestItem::new(cx)
12311                .with_label("3.txt")
12312                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12313        });
12314
12315        let dirty_multi_buffer_with_both = cx.new(|cx| {
12316            TestItem::new(cx)
12317                .with_dirty(true)
12318                .with_buffer_kind(ItemBufferKind::Multibuffer)
12319                .with_label("Fake Project Search")
12320                .with_project_items(&[
12321                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12322                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12323                    clear_regular_buffer.read(cx).project_items[0].clone(),
12324                ])
12325        });
12326        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12327        workspace.update_in(cx, |workspace, window, cx| {
12328            workspace.add_item(
12329                pane.clone(),
12330                Box::new(dirty_regular_buffer.clone()),
12331                None,
12332                false,
12333                false,
12334                window,
12335                cx,
12336            );
12337            workspace.add_item(
12338                pane.clone(),
12339                Box::new(dirty_multi_buffer_with_both.clone()),
12340                None,
12341                false,
12342                false,
12343                window,
12344                cx,
12345            );
12346        });
12347
12348        pane.update_in(cx, |pane, window, cx| {
12349            pane.activate_item(1, true, true, window, cx);
12350            assert_eq!(
12351                pane.active_item().unwrap().item_id(),
12352                multi_buffer_with_both_files_id,
12353                "Should select the multi buffer in the pane"
12354            );
12355        });
12356        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12357            pane.close_active_item(
12358                &CloseActiveItem {
12359                    save_intent: None,
12360                    close_pinned: false,
12361                },
12362                window,
12363                cx,
12364            )
12365        });
12366        cx.background_executor.run_until_parked();
12367        assert!(
12368            cx.has_pending_prompt(),
12369            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
12370        );
12371    }
12372
12373    /// Tests that when `close_on_file_delete` is enabled, files are automatically
12374    /// closed when they are deleted from disk.
12375    #[gpui::test]
12376    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
12377        init_test(cx);
12378
12379        // Enable the close_on_disk_deletion setting
12380        cx.update_global(|store: &mut SettingsStore, cx| {
12381            store.update_user_settings(cx, |settings| {
12382                settings.workspace.close_on_file_delete = Some(true);
12383            });
12384        });
12385
12386        let fs = FakeFs::new(cx.background_executor.clone());
12387        let project = Project::test(fs, [], cx).await;
12388        let (workspace, cx) =
12389            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12390        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12391
12392        // Create a test item that simulates a file
12393        let item = cx.new(|cx| {
12394            TestItem::new(cx)
12395                .with_label("test.txt")
12396                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12397        });
12398
12399        // Add item to workspace
12400        workspace.update_in(cx, |workspace, window, cx| {
12401            workspace.add_item(
12402                pane.clone(),
12403                Box::new(item.clone()),
12404                None,
12405                false,
12406                false,
12407                window,
12408                cx,
12409            );
12410        });
12411
12412        // Verify the item is in the pane
12413        pane.read_with(cx, |pane, _| {
12414            assert_eq!(pane.items().count(), 1);
12415        });
12416
12417        // Simulate file deletion by setting the item's deleted state
12418        item.update(cx, |item, _| {
12419            item.set_has_deleted_file(true);
12420        });
12421
12422        // Emit UpdateTab event to trigger the close behavior
12423        cx.run_until_parked();
12424        item.update(cx, |_, cx| {
12425            cx.emit(ItemEvent::UpdateTab);
12426        });
12427
12428        // Allow the close operation to complete
12429        cx.run_until_parked();
12430
12431        // Verify the item was automatically closed
12432        pane.read_with(cx, |pane, _| {
12433            assert_eq!(
12434                pane.items().count(),
12435                0,
12436                "Item should be automatically closed when file is deleted"
12437            );
12438        });
12439    }
12440
12441    /// Tests that when `close_on_file_delete` is disabled (default), files remain
12442    /// open with a strikethrough when they are deleted from disk.
12443    #[gpui::test]
12444    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
12445        init_test(cx);
12446
12447        // Ensure close_on_disk_deletion is disabled (default)
12448        cx.update_global(|store: &mut SettingsStore, cx| {
12449            store.update_user_settings(cx, |settings| {
12450                settings.workspace.close_on_file_delete = Some(false);
12451            });
12452        });
12453
12454        let fs = FakeFs::new(cx.background_executor.clone());
12455        let project = Project::test(fs, [], cx).await;
12456        let (workspace, cx) =
12457            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12458        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12459
12460        // Create a test item that simulates a file
12461        let item = cx.new(|cx| {
12462            TestItem::new(cx)
12463                .with_label("test.txt")
12464                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12465        });
12466
12467        // Add item to workspace
12468        workspace.update_in(cx, |workspace, window, cx| {
12469            workspace.add_item(
12470                pane.clone(),
12471                Box::new(item.clone()),
12472                None,
12473                false,
12474                false,
12475                window,
12476                cx,
12477            );
12478        });
12479
12480        // Verify the item is in the pane
12481        pane.read_with(cx, |pane, _| {
12482            assert_eq!(pane.items().count(), 1);
12483        });
12484
12485        // Simulate file deletion
12486        item.update(cx, |item, _| {
12487            item.set_has_deleted_file(true);
12488        });
12489
12490        // Emit UpdateTab event
12491        cx.run_until_parked();
12492        item.update(cx, |_, cx| {
12493            cx.emit(ItemEvent::UpdateTab);
12494        });
12495
12496        // Allow any potential close operation to complete
12497        cx.run_until_parked();
12498
12499        // Verify the item remains open (with strikethrough)
12500        pane.read_with(cx, |pane, _| {
12501            assert_eq!(
12502                pane.items().count(),
12503                1,
12504                "Item should remain open when close_on_disk_deletion is disabled"
12505            );
12506        });
12507
12508        // Verify the item shows as deleted
12509        item.read_with(cx, |item, _| {
12510            assert!(
12511                item.has_deleted_file,
12512                "Item should be marked as having deleted file"
12513            );
12514        });
12515    }
12516
12517    /// Tests that dirty files are not automatically closed when deleted from disk,
12518    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
12519    /// unsaved changes without being prompted.
12520    #[gpui::test]
12521    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
12522        init_test(cx);
12523
12524        // Enable the close_on_file_delete setting
12525        cx.update_global(|store: &mut SettingsStore, cx| {
12526            store.update_user_settings(cx, |settings| {
12527                settings.workspace.close_on_file_delete = Some(true);
12528            });
12529        });
12530
12531        let fs = FakeFs::new(cx.background_executor.clone());
12532        let project = Project::test(fs, [], cx).await;
12533        let (workspace, cx) =
12534            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12535        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12536
12537        // Create a dirty test item
12538        let item = cx.new(|cx| {
12539            TestItem::new(cx)
12540                .with_dirty(true)
12541                .with_label("test.txt")
12542                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12543        });
12544
12545        // Add item to workspace
12546        workspace.update_in(cx, |workspace, window, cx| {
12547            workspace.add_item(
12548                pane.clone(),
12549                Box::new(item.clone()),
12550                None,
12551                false,
12552                false,
12553                window,
12554                cx,
12555            );
12556        });
12557
12558        // Simulate file deletion
12559        item.update(cx, |item, _| {
12560            item.set_has_deleted_file(true);
12561        });
12562
12563        // Emit UpdateTab event to trigger the close behavior
12564        cx.run_until_parked();
12565        item.update(cx, |_, cx| {
12566            cx.emit(ItemEvent::UpdateTab);
12567        });
12568
12569        // Allow any potential close operation to complete
12570        cx.run_until_parked();
12571
12572        // Verify the item remains open (dirty files are not auto-closed)
12573        pane.read_with(cx, |pane, _| {
12574            assert_eq!(
12575                pane.items().count(),
12576                1,
12577                "Dirty items should not be automatically closed even when file is deleted"
12578            );
12579        });
12580
12581        // Verify the item is marked as deleted and still dirty
12582        item.read_with(cx, |item, _| {
12583            assert!(
12584                item.has_deleted_file,
12585                "Item should be marked as having deleted file"
12586            );
12587            assert!(item.is_dirty, "Item should still be dirty");
12588        });
12589    }
12590
12591    /// Tests that navigation history is cleaned up when files are auto-closed
12592    /// due to deletion from disk.
12593    #[gpui::test]
12594    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
12595        init_test(cx);
12596
12597        // Enable the close_on_file_delete setting
12598        cx.update_global(|store: &mut SettingsStore, cx| {
12599            store.update_user_settings(cx, |settings| {
12600                settings.workspace.close_on_file_delete = Some(true);
12601            });
12602        });
12603
12604        let fs = FakeFs::new(cx.background_executor.clone());
12605        let project = Project::test(fs, [], cx).await;
12606        let (workspace, cx) =
12607            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12608        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12609
12610        // Create test items
12611        let item1 = cx.new(|cx| {
12612            TestItem::new(cx)
12613                .with_label("test1.txt")
12614                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
12615        });
12616        let item1_id = item1.item_id();
12617
12618        let item2 = cx.new(|cx| {
12619            TestItem::new(cx)
12620                .with_label("test2.txt")
12621                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
12622        });
12623
12624        // Add items to workspace
12625        workspace.update_in(cx, |workspace, window, cx| {
12626            workspace.add_item(
12627                pane.clone(),
12628                Box::new(item1.clone()),
12629                None,
12630                false,
12631                false,
12632                window,
12633                cx,
12634            );
12635            workspace.add_item(
12636                pane.clone(),
12637                Box::new(item2.clone()),
12638                None,
12639                false,
12640                false,
12641                window,
12642                cx,
12643            );
12644        });
12645
12646        // Activate item1 to ensure it gets navigation entries
12647        pane.update_in(cx, |pane, window, cx| {
12648            pane.activate_item(0, true, true, window, cx);
12649        });
12650
12651        // Switch to item2 and back to create navigation history
12652        pane.update_in(cx, |pane, window, cx| {
12653            pane.activate_item(1, true, true, window, cx);
12654        });
12655        cx.run_until_parked();
12656
12657        pane.update_in(cx, |pane, window, cx| {
12658            pane.activate_item(0, true, true, window, cx);
12659        });
12660        cx.run_until_parked();
12661
12662        // Simulate file deletion for item1
12663        item1.update(cx, |item, _| {
12664            item.set_has_deleted_file(true);
12665        });
12666
12667        // Emit UpdateTab event to trigger the close behavior
12668        item1.update(cx, |_, cx| {
12669            cx.emit(ItemEvent::UpdateTab);
12670        });
12671        cx.run_until_parked();
12672
12673        // Verify item1 was closed
12674        pane.read_with(cx, |pane, _| {
12675            assert_eq!(
12676                pane.items().count(),
12677                1,
12678                "Should have 1 item remaining after auto-close"
12679            );
12680        });
12681
12682        // Check navigation history after close
12683        let has_item = pane.read_with(cx, |pane, cx| {
12684            let mut has_item = false;
12685            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
12686                if entry.item.id() == item1_id {
12687                    has_item = true;
12688                }
12689            });
12690            has_item
12691        });
12692
12693        assert!(
12694            !has_item,
12695            "Navigation history should not contain closed item entries"
12696        );
12697    }
12698
12699    #[gpui::test]
12700    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
12701        cx: &mut TestAppContext,
12702    ) {
12703        init_test(cx);
12704
12705        let fs = FakeFs::new(cx.background_executor.clone());
12706        let project = Project::test(fs, [], cx).await;
12707        let (workspace, cx) =
12708            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12709        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12710
12711        let dirty_regular_buffer = cx.new(|cx| {
12712            TestItem::new(cx)
12713                .with_dirty(true)
12714                .with_label("1.txt")
12715                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12716        });
12717        let dirty_regular_buffer_2 = cx.new(|cx| {
12718            TestItem::new(cx)
12719                .with_dirty(true)
12720                .with_label("2.txt")
12721                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12722        });
12723        let clear_regular_buffer = cx.new(|cx| {
12724            TestItem::new(cx)
12725                .with_label("3.txt")
12726                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12727        });
12728
12729        let dirty_multi_buffer = cx.new(|cx| {
12730            TestItem::new(cx)
12731                .with_dirty(true)
12732                .with_buffer_kind(ItemBufferKind::Multibuffer)
12733                .with_label("Fake Project Search")
12734                .with_project_items(&[
12735                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12736                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12737                    clear_regular_buffer.read(cx).project_items[0].clone(),
12738                ])
12739        });
12740        workspace.update_in(cx, |workspace, window, cx| {
12741            workspace.add_item(
12742                pane.clone(),
12743                Box::new(dirty_regular_buffer.clone()),
12744                None,
12745                false,
12746                false,
12747                window,
12748                cx,
12749            );
12750            workspace.add_item(
12751                pane.clone(),
12752                Box::new(dirty_regular_buffer_2.clone()),
12753                None,
12754                false,
12755                false,
12756                window,
12757                cx,
12758            );
12759            workspace.add_item(
12760                pane.clone(),
12761                Box::new(dirty_multi_buffer.clone()),
12762                None,
12763                false,
12764                false,
12765                window,
12766                cx,
12767            );
12768        });
12769
12770        pane.update_in(cx, |pane, window, cx| {
12771            pane.activate_item(2, true, true, window, cx);
12772            assert_eq!(
12773                pane.active_item().unwrap().item_id(),
12774                dirty_multi_buffer.item_id(),
12775                "Should select the multi buffer in the pane"
12776            );
12777        });
12778        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12779            pane.close_active_item(
12780                &CloseActiveItem {
12781                    save_intent: None,
12782                    close_pinned: false,
12783                },
12784                window,
12785                cx,
12786            )
12787        });
12788        cx.background_executor.run_until_parked();
12789        assert!(
12790            !cx.has_pending_prompt(),
12791            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
12792        );
12793        close_multi_buffer_task
12794            .await
12795            .expect("Closing multi buffer failed");
12796        pane.update(cx, |pane, cx| {
12797            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
12798            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
12799            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
12800            assert_eq!(
12801                pane.items()
12802                    .map(|item| item.item_id())
12803                    .sorted()
12804                    .collect::<Vec<_>>(),
12805                vec![
12806                    dirty_regular_buffer.item_id(),
12807                    dirty_regular_buffer_2.item_id(),
12808                ],
12809                "Should have no multi buffer left in the pane"
12810            );
12811            assert!(dirty_regular_buffer.read(cx).is_dirty);
12812            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
12813        });
12814    }
12815
12816    #[gpui::test]
12817    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
12818        init_test(cx);
12819        let fs = FakeFs::new(cx.executor());
12820        let project = Project::test(fs, [], cx).await;
12821        let (multi_workspace, cx) =
12822            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12823        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12824
12825        // Add a new panel to the right dock, opening the dock and setting the
12826        // focus to the new panel.
12827        let panel = workspace.update_in(cx, |workspace, window, cx| {
12828            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12829            workspace.add_panel(panel.clone(), window, cx);
12830
12831            workspace
12832                .right_dock()
12833                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12834
12835            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12836
12837            panel
12838        });
12839
12840        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12841        // panel to the next valid position which, in this case, is the left
12842        // dock.
12843        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12844        workspace.update(cx, |workspace, cx| {
12845            assert!(workspace.left_dock().read(cx).is_open());
12846            assert_eq!(panel.read(cx).position, DockPosition::Left);
12847        });
12848
12849        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12850        // panel to the next valid position which, in this case, is the bottom
12851        // dock.
12852        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12853        workspace.update(cx, |workspace, cx| {
12854            assert!(workspace.bottom_dock().read(cx).is_open());
12855            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
12856        });
12857
12858        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
12859        // around moving the panel to its initial position, the right dock.
12860        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12861        workspace.update(cx, |workspace, cx| {
12862            assert!(workspace.right_dock().read(cx).is_open());
12863            assert_eq!(panel.read(cx).position, DockPosition::Right);
12864        });
12865
12866        // Remove focus from the panel, ensuring that, if the panel is not
12867        // focused, the `MoveFocusedPanelToNextPosition` action does not update
12868        // the panel's position, so the panel is still in the right dock.
12869        workspace.update_in(cx, |workspace, window, cx| {
12870            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12871        });
12872
12873        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12874        workspace.update(cx, |workspace, cx| {
12875            assert!(workspace.right_dock().read(cx).is_open());
12876            assert_eq!(panel.read(cx).position, DockPosition::Right);
12877        });
12878    }
12879
12880    #[gpui::test]
12881    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
12882        init_test(cx);
12883
12884        let fs = FakeFs::new(cx.executor());
12885        let project = Project::test(fs, [], cx).await;
12886        let (workspace, cx) =
12887            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12888
12889        let item_1 = cx.new(|cx| {
12890            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12891        });
12892        workspace.update_in(cx, |workspace, window, cx| {
12893            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12894            workspace.move_item_to_pane_in_direction(
12895                &MoveItemToPaneInDirection {
12896                    direction: SplitDirection::Right,
12897                    focus: true,
12898                    clone: false,
12899                },
12900                window,
12901                cx,
12902            );
12903            workspace.move_item_to_pane_at_index(
12904                &MoveItemToPane {
12905                    destination: 3,
12906                    focus: true,
12907                    clone: false,
12908                },
12909                window,
12910                cx,
12911            );
12912
12913            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
12914            assert_eq!(
12915                pane_items_paths(&workspace.active_pane, cx),
12916                vec!["first.txt".to_string()],
12917                "Single item was not moved anywhere"
12918            );
12919        });
12920
12921        let item_2 = cx.new(|cx| {
12922            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
12923        });
12924        workspace.update_in(cx, |workspace, window, cx| {
12925            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
12926            assert_eq!(
12927                pane_items_paths(&workspace.panes[0], cx),
12928                vec!["first.txt".to_string(), "second.txt".to_string()],
12929            );
12930            workspace.move_item_to_pane_in_direction(
12931                &MoveItemToPaneInDirection {
12932                    direction: SplitDirection::Right,
12933                    focus: true,
12934                    clone: false,
12935                },
12936                window,
12937                cx,
12938            );
12939
12940            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
12941            assert_eq!(
12942                pane_items_paths(&workspace.panes[0], cx),
12943                vec!["first.txt".to_string()],
12944                "After moving, one item should be left in the original pane"
12945            );
12946            assert_eq!(
12947                pane_items_paths(&workspace.panes[1], cx),
12948                vec!["second.txt".to_string()],
12949                "New item should have been moved to the new pane"
12950            );
12951        });
12952
12953        let item_3 = cx.new(|cx| {
12954            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
12955        });
12956        workspace.update_in(cx, |workspace, window, cx| {
12957            let original_pane = workspace.panes[0].clone();
12958            workspace.set_active_pane(&original_pane, window, cx);
12959            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
12960            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
12961            assert_eq!(
12962                pane_items_paths(&workspace.active_pane, cx),
12963                vec!["first.txt".to_string(), "third.txt".to_string()],
12964                "New pane should be ready to move one item out"
12965            );
12966
12967            workspace.move_item_to_pane_at_index(
12968                &MoveItemToPane {
12969                    destination: 3,
12970                    focus: true,
12971                    clone: false,
12972                },
12973                window,
12974                cx,
12975            );
12976            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
12977            assert_eq!(
12978                pane_items_paths(&workspace.active_pane, cx),
12979                vec!["first.txt".to_string()],
12980                "After moving, one item should be left in the original pane"
12981            );
12982            assert_eq!(
12983                pane_items_paths(&workspace.panes[1], cx),
12984                vec!["second.txt".to_string()],
12985                "Previously created pane should be unchanged"
12986            );
12987            assert_eq!(
12988                pane_items_paths(&workspace.panes[2], cx),
12989                vec!["third.txt".to_string()],
12990                "New item should have been moved to the new pane"
12991            );
12992        });
12993    }
12994
12995    #[gpui::test]
12996    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
12997        init_test(cx);
12998
12999        let fs = FakeFs::new(cx.executor());
13000        let project = Project::test(fs, [], cx).await;
13001        let (workspace, cx) =
13002            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13003
13004        let item_1 = cx.new(|cx| {
13005            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13006        });
13007        workspace.update_in(cx, |workspace, window, cx| {
13008            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13009            workspace.move_item_to_pane_in_direction(
13010                &MoveItemToPaneInDirection {
13011                    direction: SplitDirection::Right,
13012                    focus: true,
13013                    clone: true,
13014                },
13015                window,
13016                cx,
13017            );
13018        });
13019        cx.run_until_parked();
13020        workspace.update_in(cx, |workspace, window, cx| {
13021            workspace.move_item_to_pane_at_index(
13022                &MoveItemToPane {
13023                    destination: 3,
13024                    focus: true,
13025                    clone: true,
13026                },
13027                window,
13028                cx,
13029            );
13030        });
13031        cx.run_until_parked();
13032
13033        workspace.update(cx, |workspace, cx| {
13034            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
13035            for pane in workspace.panes() {
13036                assert_eq!(
13037                    pane_items_paths(pane, cx),
13038                    vec!["first.txt".to_string()],
13039                    "Single item exists in all panes"
13040                );
13041            }
13042        });
13043
13044        // verify that the active pane has been updated after waiting for the
13045        // pane focus event to fire and resolve
13046        workspace.read_with(cx, |workspace, _app| {
13047            assert_eq!(
13048                workspace.active_pane(),
13049                &workspace.panes[2],
13050                "The third pane should be the active one: {:?}",
13051                workspace.panes
13052            );
13053        })
13054    }
13055
13056    #[gpui::test]
13057    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
13058        init_test(cx);
13059
13060        let fs = FakeFs::new(cx.executor());
13061        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
13062
13063        let project = Project::test(fs, ["root".as_ref()], cx).await;
13064        let (workspace, cx) =
13065            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13066
13067        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13068        // Add item to pane A with project path
13069        let item_a = cx.new(|cx| {
13070            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13071        });
13072        workspace.update_in(cx, |workspace, window, cx| {
13073            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
13074        });
13075
13076        // Split to create pane B
13077        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
13078            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
13079        });
13080
13081        // Add item with SAME project path to pane B, and pin it
13082        let item_b = cx.new(|cx| {
13083            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13084        });
13085        pane_b.update_in(cx, |pane, window, cx| {
13086            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13087            pane.set_pinned_count(1);
13088        });
13089
13090        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
13091        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
13092
13093        // close_pinned: false should only close the unpinned copy
13094        workspace.update_in(cx, |workspace, window, cx| {
13095            workspace.close_item_in_all_panes(
13096                &CloseItemInAllPanes {
13097                    save_intent: Some(SaveIntent::Close),
13098                    close_pinned: false,
13099                },
13100                window,
13101                cx,
13102            )
13103        });
13104        cx.executor().run_until_parked();
13105
13106        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
13107        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13108        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
13109        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
13110
13111        // Split again, seeing as closing the previous item also closed its
13112        // pane, so only pane remains, which does not allow us to properly test
13113        // that both items close when `close_pinned: true`.
13114        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
13115            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
13116        });
13117
13118        // Add an item with the same project path to pane C so that
13119        // close_item_in_all_panes can determine what to close across all panes
13120        // (it reads the active item from the active pane, and split_pane
13121        // creates an empty pane).
13122        let item_c = cx.new(|cx| {
13123            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13124        });
13125        pane_c.update_in(cx, |pane, window, cx| {
13126            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
13127        });
13128
13129        // close_pinned: true should close the pinned copy too
13130        workspace.update_in(cx, |workspace, window, cx| {
13131            let panes_count = workspace.panes().len();
13132            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
13133
13134            workspace.close_item_in_all_panes(
13135                &CloseItemInAllPanes {
13136                    save_intent: Some(SaveIntent::Close),
13137                    close_pinned: true,
13138                },
13139                window,
13140                cx,
13141            )
13142        });
13143        cx.executor().run_until_parked();
13144
13145        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13146        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
13147        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
13148        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
13149    }
13150
13151    mod register_project_item_tests {
13152
13153        use super::*;
13154
13155        // View
13156        struct TestPngItemView {
13157            focus_handle: FocusHandle,
13158        }
13159        // Model
13160        struct TestPngItem {}
13161
13162        impl project::ProjectItem for TestPngItem {
13163            fn try_open(
13164                _project: &Entity<Project>,
13165                path: &ProjectPath,
13166                cx: &mut App,
13167            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13168                if path.path.extension().unwrap() == "png" {
13169                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
13170                } else {
13171                    None
13172                }
13173            }
13174
13175            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13176                None
13177            }
13178
13179            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13180                None
13181            }
13182
13183            fn is_dirty(&self) -> bool {
13184                false
13185            }
13186        }
13187
13188        impl Item for TestPngItemView {
13189            type Event = ();
13190            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13191                "".into()
13192            }
13193        }
13194        impl EventEmitter<()> for TestPngItemView {}
13195        impl Focusable for TestPngItemView {
13196            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13197                self.focus_handle.clone()
13198            }
13199        }
13200
13201        impl Render for TestPngItemView {
13202            fn render(
13203                &mut self,
13204                _window: &mut Window,
13205                _cx: &mut Context<Self>,
13206            ) -> impl IntoElement {
13207                Empty
13208            }
13209        }
13210
13211        impl ProjectItem for TestPngItemView {
13212            type Item = TestPngItem;
13213
13214            fn for_project_item(
13215                _project: Entity<Project>,
13216                _pane: Option<&Pane>,
13217                _item: Entity<Self::Item>,
13218                _: &mut Window,
13219                cx: &mut Context<Self>,
13220            ) -> Self
13221            where
13222                Self: Sized,
13223            {
13224                Self {
13225                    focus_handle: cx.focus_handle(),
13226                }
13227            }
13228        }
13229
13230        // View
13231        struct TestIpynbItemView {
13232            focus_handle: FocusHandle,
13233        }
13234        // Model
13235        struct TestIpynbItem {}
13236
13237        impl project::ProjectItem for TestIpynbItem {
13238            fn try_open(
13239                _project: &Entity<Project>,
13240                path: &ProjectPath,
13241                cx: &mut App,
13242            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13243                if path.path.extension().unwrap() == "ipynb" {
13244                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
13245                } else {
13246                    None
13247                }
13248            }
13249
13250            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13251                None
13252            }
13253
13254            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13255                None
13256            }
13257
13258            fn is_dirty(&self) -> bool {
13259                false
13260            }
13261        }
13262
13263        impl Item for TestIpynbItemView {
13264            type Event = ();
13265            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13266                "".into()
13267            }
13268        }
13269        impl EventEmitter<()> for TestIpynbItemView {}
13270        impl Focusable for TestIpynbItemView {
13271            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13272                self.focus_handle.clone()
13273            }
13274        }
13275
13276        impl Render for TestIpynbItemView {
13277            fn render(
13278                &mut self,
13279                _window: &mut Window,
13280                _cx: &mut Context<Self>,
13281            ) -> impl IntoElement {
13282                Empty
13283            }
13284        }
13285
13286        impl ProjectItem for TestIpynbItemView {
13287            type Item = TestIpynbItem;
13288
13289            fn for_project_item(
13290                _project: Entity<Project>,
13291                _pane: Option<&Pane>,
13292                _item: Entity<Self::Item>,
13293                _: &mut Window,
13294                cx: &mut Context<Self>,
13295            ) -> Self
13296            where
13297                Self: Sized,
13298            {
13299                Self {
13300                    focus_handle: cx.focus_handle(),
13301                }
13302            }
13303        }
13304
13305        struct TestAlternatePngItemView {
13306            focus_handle: FocusHandle,
13307        }
13308
13309        impl Item for TestAlternatePngItemView {
13310            type Event = ();
13311            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13312                "".into()
13313            }
13314        }
13315
13316        impl EventEmitter<()> for TestAlternatePngItemView {}
13317        impl Focusable for TestAlternatePngItemView {
13318            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13319                self.focus_handle.clone()
13320            }
13321        }
13322
13323        impl Render for TestAlternatePngItemView {
13324            fn render(
13325                &mut self,
13326                _window: &mut Window,
13327                _cx: &mut Context<Self>,
13328            ) -> impl IntoElement {
13329                Empty
13330            }
13331        }
13332
13333        impl ProjectItem for TestAlternatePngItemView {
13334            type Item = TestPngItem;
13335
13336            fn for_project_item(
13337                _project: Entity<Project>,
13338                _pane: Option<&Pane>,
13339                _item: Entity<Self::Item>,
13340                _: &mut Window,
13341                cx: &mut Context<Self>,
13342            ) -> Self
13343            where
13344                Self: Sized,
13345            {
13346                Self {
13347                    focus_handle: cx.focus_handle(),
13348                }
13349            }
13350        }
13351
13352        #[gpui::test]
13353        async fn test_register_project_item(cx: &mut TestAppContext) {
13354            init_test(cx);
13355
13356            cx.update(|cx| {
13357                register_project_item::<TestPngItemView>(cx);
13358                register_project_item::<TestIpynbItemView>(cx);
13359            });
13360
13361            let fs = FakeFs::new(cx.executor());
13362            fs.insert_tree(
13363                "/root1",
13364                json!({
13365                    "one.png": "BINARYDATAHERE",
13366                    "two.ipynb": "{ totally a notebook }",
13367                    "three.txt": "editing text, sure why not?"
13368                }),
13369            )
13370            .await;
13371
13372            let project = Project::test(fs, ["root1".as_ref()], cx).await;
13373            let (workspace, cx) =
13374                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13375
13376            let worktree_id = project.update(cx, |project, cx| {
13377                project.worktrees(cx).next().unwrap().read(cx).id()
13378            });
13379
13380            let handle = workspace
13381                .update_in(cx, |workspace, window, cx| {
13382                    let project_path = (worktree_id, rel_path("one.png"));
13383                    workspace.open_path(project_path, None, true, window, cx)
13384                })
13385                .await
13386                .unwrap();
13387
13388            // Now we can check if the handle we got back errored or not
13389            assert_eq!(
13390                handle.to_any_view().entity_type(),
13391                TypeId::of::<TestPngItemView>()
13392            );
13393
13394            let handle = workspace
13395                .update_in(cx, |workspace, window, cx| {
13396                    let project_path = (worktree_id, rel_path("two.ipynb"));
13397                    workspace.open_path(project_path, None, true, window, cx)
13398                })
13399                .await
13400                .unwrap();
13401
13402            assert_eq!(
13403                handle.to_any_view().entity_type(),
13404                TypeId::of::<TestIpynbItemView>()
13405            );
13406
13407            let handle = workspace
13408                .update_in(cx, |workspace, window, cx| {
13409                    let project_path = (worktree_id, rel_path("three.txt"));
13410                    workspace.open_path(project_path, None, true, window, cx)
13411                })
13412                .await;
13413            assert!(handle.is_err());
13414        }
13415
13416        #[gpui::test]
13417        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
13418            init_test(cx);
13419
13420            cx.update(|cx| {
13421                register_project_item::<TestPngItemView>(cx);
13422                register_project_item::<TestAlternatePngItemView>(cx);
13423            });
13424
13425            let fs = FakeFs::new(cx.executor());
13426            fs.insert_tree(
13427                "/root1",
13428                json!({
13429                    "one.png": "BINARYDATAHERE",
13430                    "two.ipynb": "{ totally a notebook }",
13431                    "three.txt": "editing text, sure why not?"
13432                }),
13433            )
13434            .await;
13435            let project = Project::test(fs, ["root1".as_ref()], cx).await;
13436            let (workspace, cx) =
13437                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13438            let worktree_id = project.update(cx, |project, cx| {
13439                project.worktrees(cx).next().unwrap().read(cx).id()
13440            });
13441
13442            let handle = workspace
13443                .update_in(cx, |workspace, window, cx| {
13444                    let project_path = (worktree_id, rel_path("one.png"));
13445                    workspace.open_path(project_path, None, true, window, cx)
13446                })
13447                .await
13448                .unwrap();
13449
13450            // This _must_ be the second item registered
13451            assert_eq!(
13452                handle.to_any_view().entity_type(),
13453                TypeId::of::<TestAlternatePngItemView>()
13454            );
13455
13456            let handle = workspace
13457                .update_in(cx, |workspace, window, cx| {
13458                    let project_path = (worktree_id, rel_path("three.txt"));
13459                    workspace.open_path(project_path, None, true, window, cx)
13460                })
13461                .await;
13462            assert!(handle.is_err());
13463        }
13464    }
13465
13466    #[gpui::test]
13467    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
13468        init_test(cx);
13469
13470        let fs = FakeFs::new(cx.executor());
13471        let project = Project::test(fs, [], cx).await;
13472        let (workspace, _cx) =
13473            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13474
13475        // Test with status bar shown (default)
13476        workspace.read_with(cx, |workspace, cx| {
13477            let visible = workspace.status_bar_visible(cx);
13478            assert!(visible, "Status bar should be visible by default");
13479        });
13480
13481        // Test with status bar hidden
13482        cx.update_global(|store: &mut SettingsStore, cx| {
13483            store.update_user_settings(cx, |settings| {
13484                settings.status_bar.get_or_insert_default().show = Some(false);
13485            });
13486        });
13487
13488        workspace.read_with(cx, |workspace, cx| {
13489            let visible = workspace.status_bar_visible(cx);
13490            assert!(!visible, "Status bar should be hidden when show is false");
13491        });
13492
13493        // Test with status bar shown explicitly
13494        cx.update_global(|store: &mut SettingsStore, cx| {
13495            store.update_user_settings(cx, |settings| {
13496                settings.status_bar.get_or_insert_default().show = Some(true);
13497            });
13498        });
13499
13500        workspace.read_with(cx, |workspace, cx| {
13501            let visible = workspace.status_bar_visible(cx);
13502            assert!(visible, "Status bar should be visible when show is true");
13503        });
13504    }
13505
13506    #[gpui::test]
13507    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
13508        init_test(cx);
13509
13510        let fs = FakeFs::new(cx.executor());
13511        let project = Project::test(fs, [], cx).await;
13512        let (multi_workspace, cx) =
13513            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13514        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13515        let panel = workspace.update_in(cx, |workspace, window, cx| {
13516            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13517            workspace.add_panel(panel.clone(), window, cx);
13518
13519            workspace
13520                .right_dock()
13521                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13522
13523            panel
13524        });
13525
13526        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13527        let item_a = cx.new(TestItem::new);
13528        let item_b = cx.new(TestItem::new);
13529        let item_a_id = item_a.entity_id();
13530        let item_b_id = item_b.entity_id();
13531
13532        pane.update_in(cx, |pane, window, cx| {
13533            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
13534            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13535        });
13536
13537        pane.read_with(cx, |pane, _| {
13538            assert_eq!(pane.items_len(), 2);
13539            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
13540        });
13541
13542        workspace.update_in(cx, |workspace, window, cx| {
13543            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13544        });
13545
13546        workspace.update_in(cx, |_, window, cx| {
13547            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13548        });
13549
13550        // Assert that the `pane::CloseActiveItem` action is handled at the
13551        // workspace level when one of the dock panels is focused and, in that
13552        // case, the center pane's active item is closed but the focus is not
13553        // moved.
13554        cx.dispatch_action(pane::CloseActiveItem::default());
13555        cx.run_until_parked();
13556
13557        pane.read_with(cx, |pane, _| {
13558            assert_eq!(pane.items_len(), 1);
13559            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
13560        });
13561
13562        workspace.update_in(cx, |workspace, window, cx| {
13563            assert!(workspace.right_dock().read(cx).is_open());
13564            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13565        });
13566    }
13567
13568    #[gpui::test]
13569    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
13570        init_test(cx);
13571        let fs = FakeFs::new(cx.executor());
13572
13573        let project_a = Project::test(fs.clone(), [], cx).await;
13574        let project_b = Project::test(fs, [], cx).await;
13575
13576        let multi_workspace_handle =
13577            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
13578        cx.run_until_parked();
13579
13580        let workspace_a = multi_workspace_handle
13581            .read_with(cx, |mw, _| mw.workspace().clone())
13582            .unwrap();
13583
13584        let _workspace_b = multi_workspace_handle
13585            .update(cx, |mw, window, cx| {
13586                mw.test_add_workspace(project_b, window, cx)
13587            })
13588            .unwrap();
13589
13590        // Switch to workspace A
13591        multi_workspace_handle
13592            .update(cx, |mw, window, cx| {
13593                mw.activate_index(0, window, cx);
13594            })
13595            .unwrap();
13596
13597        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
13598
13599        // Add a panel to workspace A's right dock and open the dock
13600        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
13601            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13602            workspace.add_panel(panel.clone(), window, cx);
13603            workspace
13604                .right_dock()
13605                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13606            panel
13607        });
13608
13609        // Focus the panel through the workspace (matching existing test pattern)
13610        workspace_a.update_in(cx, |workspace, window, cx| {
13611            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13612        });
13613
13614        // Zoom the panel
13615        panel.update_in(cx, |panel, window, cx| {
13616            panel.set_zoomed(true, window, cx);
13617        });
13618
13619        // Verify the panel is zoomed and the dock is open
13620        workspace_a.update_in(cx, |workspace, window, cx| {
13621            assert!(
13622                workspace.right_dock().read(cx).is_open(),
13623                "dock should be open before switch"
13624            );
13625            assert!(
13626                panel.is_zoomed(window, cx),
13627                "panel should be zoomed before switch"
13628            );
13629            assert!(
13630                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
13631                "panel should be focused before switch"
13632            );
13633        });
13634
13635        // Switch to workspace B
13636        multi_workspace_handle
13637            .update(cx, |mw, window, cx| {
13638                mw.activate_index(1, window, cx);
13639            })
13640            .unwrap();
13641        cx.run_until_parked();
13642
13643        // Switch back to workspace A
13644        multi_workspace_handle
13645            .update(cx, |mw, window, cx| {
13646                mw.activate_index(0, window, cx);
13647            })
13648            .unwrap();
13649        cx.run_until_parked();
13650
13651        // Verify the panel is still zoomed and the dock is still open
13652        workspace_a.update_in(cx, |workspace, window, cx| {
13653            assert!(
13654                workspace.right_dock().read(cx).is_open(),
13655                "dock should still be open after switching back"
13656            );
13657            assert!(
13658                panel.is_zoomed(window, cx),
13659                "panel should still be zoomed after switching back"
13660            );
13661        });
13662    }
13663
13664    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
13665        pane.read(cx)
13666            .items()
13667            .flat_map(|item| {
13668                item.project_paths(cx)
13669                    .into_iter()
13670                    .map(|path| path.path.display(PathStyle::local()).into_owned())
13671            })
13672            .collect()
13673    }
13674
13675    pub fn init_test(cx: &mut TestAppContext) {
13676        cx.update(|cx| {
13677            let settings_store = SettingsStore::test(cx);
13678            cx.set_global(settings_store);
13679            cx.set_global(db::AppDatabase::test_new());
13680            theme::init(theme::LoadThemes::JustBase, cx);
13681        });
13682    }
13683
13684    #[gpui::test]
13685    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
13686        use settings::{ThemeName, ThemeSelection};
13687        use theme::SystemAppearance;
13688        use zed_actions::theme::ToggleMode;
13689
13690        init_test(cx);
13691
13692        let fs = FakeFs::new(cx.executor());
13693        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
13694
13695        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
13696            .await;
13697
13698        // Build a test project and workspace view so the test can invoke
13699        // the workspace action handler the same way the UI would.
13700        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
13701        let (workspace, cx) =
13702            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13703
13704        // Seed the settings file with a plain static light theme so the
13705        // first toggle always starts from a known persisted state.
13706        workspace.update_in(cx, |_workspace, _window, cx| {
13707            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
13708            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
13709                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
13710            });
13711        });
13712        cx.executor().advance_clock(Duration::from_millis(200));
13713        cx.run_until_parked();
13714
13715        // Confirm the initial persisted settings contain the static theme
13716        // we just wrote before any toggling happens.
13717        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13718        assert!(settings_text.contains(r#""theme": "One Light""#));
13719
13720        // Toggle once. This should migrate the persisted theme settings
13721        // into light/dark slots and enable system mode.
13722        workspace.update_in(cx, |workspace, window, cx| {
13723            workspace.toggle_theme_mode(&ToggleMode, window, cx);
13724        });
13725        cx.executor().advance_clock(Duration::from_millis(200));
13726        cx.run_until_parked();
13727
13728        // 1. Static -> Dynamic
13729        // this assertion checks theme changed from static to dynamic.
13730        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13731        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
13732        assert_eq!(
13733            parsed["theme"],
13734            serde_json::json!({
13735                "mode": "system",
13736                "light": "One Light",
13737                "dark": "One Dark"
13738            })
13739        );
13740
13741        // 2. Toggle again, suppose it will change the mode to light
13742        workspace.update_in(cx, |workspace, window, cx| {
13743            workspace.toggle_theme_mode(&ToggleMode, window, cx);
13744        });
13745        cx.executor().advance_clock(Duration::from_millis(200));
13746        cx.run_until_parked();
13747
13748        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
13749        assert!(settings_text.contains(r#""mode": "light""#));
13750    }
13751
13752    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
13753        let item = TestProjectItem::new(id, path, cx);
13754        item.update(cx, |item, _| {
13755            item.is_dirty = true;
13756        });
13757        item
13758    }
13759
13760    #[gpui::test]
13761    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
13762        cx: &mut gpui::TestAppContext,
13763    ) {
13764        init_test(cx);
13765        let fs = FakeFs::new(cx.executor());
13766
13767        let project = Project::test(fs, [], cx).await;
13768        let (workspace, cx) =
13769            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13770
13771        let panel = workspace.update_in(cx, |workspace, window, cx| {
13772            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13773            workspace.add_panel(panel.clone(), window, cx);
13774            workspace
13775                .right_dock()
13776                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13777            panel
13778        });
13779
13780        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13781        pane.update_in(cx, |pane, window, cx| {
13782            let item = cx.new(TestItem::new);
13783            pane.add_item(Box::new(item), true, true, None, window, cx);
13784        });
13785
13786        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
13787        // mirrors the real-world flow and avoids side effects from directly
13788        // focusing the panel while the center pane is active.
13789        workspace.update_in(cx, |workspace, window, cx| {
13790            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13791        });
13792
13793        panel.update_in(cx, |panel, window, cx| {
13794            panel.set_zoomed(true, window, cx);
13795        });
13796
13797        workspace.update_in(cx, |workspace, window, cx| {
13798            assert!(workspace.right_dock().read(cx).is_open());
13799            assert!(panel.is_zoomed(window, cx));
13800            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13801        });
13802
13803        // Simulate a spurious pane::Event::Focus on the center pane while the
13804        // panel still has focus. This mirrors what happens during macOS window
13805        // activation: the center pane fires a focus event even though actual
13806        // focus remains on the dock panel.
13807        pane.update_in(cx, |_, _, cx| {
13808            cx.emit(pane::Event::Focus);
13809        });
13810
13811        // The dock must remain open because the panel had focus at the time the
13812        // event was processed. Before the fix, dock_to_preserve was None for
13813        // panels that don't implement pane(), causing the dock to close.
13814        workspace.update_in(cx, |workspace, window, cx| {
13815            assert!(
13816                workspace.right_dock().read(cx).is_open(),
13817                "Dock should stay open when its zoomed panel (without pane()) still has focus"
13818            );
13819            assert!(panel.is_zoomed(window, cx));
13820        });
13821    }
13822}