workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6mod multi_workspace;
    7pub mod notifications;
    8pub mod pane;
    9pub mod pane_group;
   10pub mod path_list {
   11    pub use util::path_list::{PathList, SerializedPathList};
   12}
   13mod persistence;
   14pub mod searchable;
   15mod security_modal;
   16pub mod shared_screen;
   17use db::smol::future::yield_now;
   18pub use shared_screen::SharedScreen;
   19mod status_bar;
   20pub mod tasks;
   21mod theme_preview;
   22mod toast_layer;
   23mod toolbar;
   24pub mod welcome;
   25mod workspace_settings;
   26
   27pub use crate::notifications::NotificationFrame;
   28pub use dock::Panel;
   29pub use multi_workspace::{
   30    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace,
   31    MultiWorkspaceEvent, NextWorkspace, PreviousWorkspace, Sidebar, SidebarHandle,
   32    ToggleWorkspaceSidebar,
   33};
   34pub use path_list::{PathList, SerializedPathList};
   35pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   36
   37use anyhow::{Context as _, Result, anyhow};
   38use client::{
   39    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   40    proto::{self, ErrorCode, PanelId, PeerId},
   41};
   42use collections::{HashMap, HashSet, hash_map};
   43use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   44use fs::Fs;
   45use futures::{
   46    Future, FutureExt, StreamExt,
   47    channel::{
   48        mpsc::{self, UnboundedReceiver, UnboundedSender},
   49        oneshot,
   50    },
   51    future::{Shared, try_join_all},
   52};
   53use gpui::{
   54    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Axis, Bounds,
   55    Context, CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   56    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   57    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   58    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   59    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   60};
   61pub use history_manager::*;
   62pub use item::{
   63    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   64    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   65};
   66use itertools::Itertools;
   67use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   68pub use modal_layer::*;
   69use node_runtime::NodeRuntime;
   70use notifications::{
   71    DetachAndPromptErr, Notifications, dismiss_app_notification,
   72    simple_message_notification::MessageNotification,
   73};
   74pub use pane::*;
   75pub use pane_group::{
   76    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   77    SplitDirection,
   78};
   79use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   80pub use persistence::{
   81    WorkspaceDb, delete_unloaded_items,
   82    model::{
   83        DockStructure, ItemId, SerializedMultiWorkspace, SerializedWorkspaceLocation,
   84        SessionWorkspace,
   85    },
   86    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   87};
   88use postage::stream::Stream;
   89use project::{
   90    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   91    WorktreeSettings,
   92    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   93    project_settings::ProjectSettings,
   94    toolchain_store::ToolchainStoreEvent,
   95    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   96};
   97use remote::{
   98    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   99    remote_client::ConnectionIdentifier,
  100};
  101use schemars::JsonSchema;
  102use serde::Deserialize;
  103use session::AppSession;
  104use settings::{
  105    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  106};
  107
  108use sqlez::{
  109    bindable::{Bind, Column, StaticColumnCount},
  110    statement::Statement,
  111};
  112use status_bar::StatusBar;
  113pub use status_bar::StatusItemView;
  114use std::{
  115    any::TypeId,
  116    borrow::Cow,
  117    cell::RefCell,
  118    cmp,
  119    collections::VecDeque,
  120    env,
  121    hash::Hash,
  122    path::{Path, PathBuf},
  123    process::ExitStatus,
  124    rc::Rc,
  125    sync::{
  126        Arc, LazyLock, Weak,
  127        atomic::{AtomicBool, AtomicUsize},
  128    },
  129    time::Duration,
  130};
  131use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  132use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  133pub use toolbar::{
  134    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  135};
  136pub use ui;
  137use ui::{Window, prelude::*};
  138use util::{
  139    ResultExt, TryFutureExt,
  140    paths::{PathStyle, SanitizedPath},
  141    rel_path::RelPath,
  142    serde::default_true,
  143};
  144use uuid::Uuid;
  145pub use workspace_settings::{
  146    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  147    WorkspaceSettings,
  148};
  149use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  150
  151use crate::{item::ItemBufferKind, notifications::NotificationId};
  152use crate::{
  153    persistence::{
  154        SerializedAxis,
  155        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  156    },
  157    security_modal::SecurityModal,
  158};
  159
  160pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  161
  162static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  163    env::var("ZED_WINDOW_SIZE")
  164        .ok()
  165        .as_deref()
  166        .and_then(parse_pixel_size_env_var)
  167});
  168
  169static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  170    env::var("ZED_WINDOW_POSITION")
  171        .ok()
  172        .as_deref()
  173        .and_then(parse_pixel_position_env_var)
  174});
  175
  176pub trait TerminalProvider {
  177    fn spawn(
  178        &self,
  179        task: SpawnInTerminal,
  180        window: &mut Window,
  181        cx: &mut App,
  182    ) -> Task<Option<Result<ExitStatus>>>;
  183}
  184
  185pub trait DebuggerProvider {
  186    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  187    fn start_session(
  188        &self,
  189        definition: DebugScenario,
  190        task_context: SharedTaskContext,
  191        active_buffer: Option<Entity<Buffer>>,
  192        worktree_id: Option<WorktreeId>,
  193        window: &mut Window,
  194        cx: &mut App,
  195    );
  196
  197    fn spawn_task_or_modal(
  198        &self,
  199        workspace: &mut Workspace,
  200        action: &Spawn,
  201        window: &mut Window,
  202        cx: &mut Context<Workspace>,
  203    );
  204
  205    fn task_scheduled(&self, cx: &mut App);
  206    fn debug_scenario_scheduled(&self, cx: &mut App);
  207    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  208
  209    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  210}
  211
  212/// Opens a file or directory.
  213#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  214#[action(namespace = workspace)]
  215pub struct Open {
  216    /// When true, opens in a new window. When false, adds to the current
  217    /// window as a new workspace (multi-workspace).
  218    #[serde(default = "Open::default_create_new_window")]
  219    pub create_new_window: bool,
  220}
  221
  222impl Open {
  223    pub const DEFAULT: Self = Self {
  224        create_new_window: true,
  225    };
  226
  227    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  228    /// the serde default and `Open::DEFAULT` stay in sync.
  229    fn default_create_new_window() -> bool {
  230        Self::DEFAULT.create_new_window
  231    }
  232}
  233
  234impl Default for Open {
  235    fn default() -> Self {
  236        Self::DEFAULT
  237    }
  238}
  239
  240actions!(
  241    workspace,
  242    [
  243        /// Activates the next pane in the workspace.
  244        ActivateNextPane,
  245        /// Activates the previous pane in the workspace.
  246        ActivatePreviousPane,
  247        /// Activates the last pane in the workspace.
  248        ActivateLastPane,
  249        /// Switches to the next window.
  250        ActivateNextWindow,
  251        /// Switches to the previous window.
  252        ActivatePreviousWindow,
  253        /// Adds a folder to the current project.
  254        AddFolderToProject,
  255        /// Clears all notifications.
  256        ClearAllNotifications,
  257        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  258        ClearNavigationHistory,
  259        /// Closes the active dock.
  260        CloseActiveDock,
  261        /// Closes all docks.
  262        CloseAllDocks,
  263        /// Toggles all docks.
  264        ToggleAllDocks,
  265        /// Closes the current window.
  266        CloseWindow,
  267        /// Closes the current project.
  268        CloseProject,
  269        /// Opens the feedback dialog.
  270        Feedback,
  271        /// Follows the next collaborator in the session.
  272        FollowNextCollaborator,
  273        /// Moves the focused panel to the next position.
  274        MoveFocusedPanelToNextPosition,
  275        /// Creates a new file.
  276        NewFile,
  277        /// Creates a new file in a vertical split.
  278        NewFileSplitVertical,
  279        /// Creates a new file in a horizontal split.
  280        NewFileSplitHorizontal,
  281        /// Opens a new search.
  282        NewSearch,
  283        /// Opens a new window.
  284        NewWindow,
  285        /// Opens multiple files.
  286        OpenFiles,
  287        /// Opens the current location in terminal.
  288        OpenInTerminal,
  289        /// Opens the component preview.
  290        OpenComponentPreview,
  291        /// Reloads the active item.
  292        ReloadActiveItem,
  293        /// Resets the active dock to its default size.
  294        ResetActiveDockSize,
  295        /// Resets all open docks to their default sizes.
  296        ResetOpenDocksSize,
  297        /// Reloads the application
  298        Reload,
  299        /// Saves the current file with a new name.
  300        SaveAs,
  301        /// Saves without formatting.
  302        SaveWithoutFormat,
  303        /// Shuts down all debug adapters.
  304        ShutdownDebugAdapters,
  305        /// Suppresses the current notification.
  306        SuppressNotification,
  307        /// Toggles the bottom dock.
  308        ToggleBottomDock,
  309        /// Toggles centered layout mode.
  310        ToggleCenteredLayout,
  311        /// Toggles edit prediction feature globally for all files.
  312        ToggleEditPrediction,
  313        /// Toggles the left dock.
  314        ToggleLeftDock,
  315        /// Toggles the right dock.
  316        ToggleRightDock,
  317        /// Toggles zoom on the active pane.
  318        ToggleZoom,
  319        /// Toggles read-only mode for the active item (if supported by that item).
  320        ToggleReadOnlyFile,
  321        /// Zooms in on the active pane.
  322        ZoomIn,
  323        /// Zooms out of the active pane.
  324        ZoomOut,
  325        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  326        /// If the modal is shown already, closes it without trusting any worktree.
  327        ToggleWorktreeSecurity,
  328        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  329        /// Requires restart to take effect on already opened projects.
  330        ClearTrustedWorktrees,
  331        /// Stops following a collaborator.
  332        Unfollow,
  333        /// Restores the banner.
  334        RestoreBanner,
  335        /// Toggles expansion of the selected item.
  336        ToggleExpandItem,
  337    ]
  338);
  339
  340/// Activates a specific pane by its index.
  341#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  342#[action(namespace = workspace)]
  343pub struct ActivatePane(pub usize);
  344
  345/// Moves an item to a specific pane by index.
  346#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  347#[action(namespace = workspace)]
  348#[serde(deny_unknown_fields)]
  349pub struct MoveItemToPane {
  350    #[serde(default = "default_1")]
  351    pub destination: usize,
  352    #[serde(default = "default_true")]
  353    pub focus: bool,
  354    #[serde(default)]
  355    pub clone: bool,
  356}
  357
  358fn default_1() -> usize {
  359    1
  360}
  361
  362/// Moves an item to a pane in the specified direction.
  363#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  364#[action(namespace = workspace)]
  365#[serde(deny_unknown_fields)]
  366pub struct MoveItemToPaneInDirection {
  367    #[serde(default = "default_right")]
  368    pub direction: SplitDirection,
  369    #[serde(default = "default_true")]
  370    pub focus: bool,
  371    #[serde(default)]
  372    pub clone: bool,
  373}
  374
  375/// Creates a new file in a split of the desired direction.
  376#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  377#[action(namespace = workspace)]
  378#[serde(deny_unknown_fields)]
  379pub struct NewFileSplit(pub SplitDirection);
  380
  381fn default_right() -> SplitDirection {
  382    SplitDirection::Right
  383}
  384
  385/// Saves all open files in the workspace.
  386#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  387#[action(namespace = workspace)]
  388#[serde(deny_unknown_fields)]
  389pub struct SaveAll {
  390    #[serde(default)]
  391    pub save_intent: Option<SaveIntent>,
  392}
  393
  394/// Saves the current file with the specified options.
  395#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  396#[action(namespace = workspace)]
  397#[serde(deny_unknown_fields)]
  398pub struct Save {
  399    #[serde(default)]
  400    pub save_intent: Option<SaveIntent>,
  401}
  402
  403/// Moves Focus to the central panes in the workspace.
  404#[derive(Clone, Debug, PartialEq, Eq, Action)]
  405#[action(namespace = workspace)]
  406pub struct FocusCenterPane;
  407
  408///  Closes all items and panes in the workspace.
  409#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  410#[action(namespace = workspace)]
  411#[serde(deny_unknown_fields)]
  412pub struct CloseAllItemsAndPanes {
  413    #[serde(default)]
  414    pub save_intent: Option<SaveIntent>,
  415}
  416
  417/// Closes all inactive tabs and panes in the workspace.
  418#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  419#[action(namespace = workspace)]
  420#[serde(deny_unknown_fields)]
  421pub struct CloseInactiveTabsAndPanes {
  422    #[serde(default)]
  423    pub save_intent: Option<SaveIntent>,
  424}
  425
  426/// Closes the active item across all panes.
  427#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  428#[action(namespace = workspace)]
  429#[serde(deny_unknown_fields)]
  430pub struct CloseItemInAllPanes {
  431    #[serde(default)]
  432    pub save_intent: Option<SaveIntent>,
  433    #[serde(default)]
  434    pub close_pinned: bool,
  435}
  436
  437/// Sends a sequence of keystrokes to the active element.
  438#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  439#[action(namespace = workspace)]
  440pub struct SendKeystrokes(pub String);
  441
  442actions!(
  443    project_symbols,
  444    [
  445        /// Toggles the project symbols search.
  446        #[action(name = "Toggle")]
  447        ToggleProjectSymbols
  448    ]
  449);
  450
  451/// Toggles the file finder interface.
  452#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  453#[action(namespace = file_finder, name = "Toggle")]
  454#[serde(deny_unknown_fields)]
  455pub struct ToggleFileFinder {
  456    #[serde(default)]
  457    pub separate_history: bool,
  458}
  459
  460/// Opens a new terminal in the center.
  461#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  462#[action(namespace = workspace)]
  463#[serde(deny_unknown_fields)]
  464pub struct NewCenterTerminal {
  465    /// If true, creates a local terminal even in remote projects.
  466    #[serde(default)]
  467    pub local: bool,
  468}
  469
  470/// Opens a new terminal.
  471#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  472#[action(namespace = workspace)]
  473#[serde(deny_unknown_fields)]
  474pub struct NewTerminal {
  475    /// If true, creates a local terminal even in remote projects.
  476    #[serde(default)]
  477    pub local: bool,
  478}
  479
  480/// Increases size of a currently focused dock by a given amount of pixels.
  481#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  482#[action(namespace = workspace)]
  483#[serde(deny_unknown_fields)]
  484pub struct IncreaseActiveDockSize {
  485    /// For 0px parameter, uses UI font size value.
  486    #[serde(default)]
  487    pub px: u32,
  488}
  489
  490/// Decreases size of a currently focused dock by a given amount of pixels.
  491#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  492#[action(namespace = workspace)]
  493#[serde(deny_unknown_fields)]
  494pub struct DecreaseActiveDockSize {
  495    /// For 0px parameter, uses UI font size value.
  496    #[serde(default)]
  497    pub px: u32,
  498}
  499
  500/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  501#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  502#[action(namespace = workspace)]
  503#[serde(deny_unknown_fields)]
  504pub struct IncreaseOpenDocksSize {
  505    /// For 0px parameter, uses UI font size value.
  506    #[serde(default)]
  507    pub px: u32,
  508}
  509
  510/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  511#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  512#[action(namespace = workspace)]
  513#[serde(deny_unknown_fields)]
  514pub struct DecreaseOpenDocksSize {
  515    /// For 0px parameter, uses UI font size value.
  516    #[serde(default)]
  517    pub px: u32,
  518}
  519
  520actions!(
  521    workspace,
  522    [
  523        /// Activates the pane to the left.
  524        ActivatePaneLeft,
  525        /// Activates the pane to the right.
  526        ActivatePaneRight,
  527        /// Activates the pane above.
  528        ActivatePaneUp,
  529        /// Activates the pane below.
  530        ActivatePaneDown,
  531        /// Swaps the current pane with the one to the left.
  532        SwapPaneLeft,
  533        /// Swaps the current pane with the one to the right.
  534        SwapPaneRight,
  535        /// Swaps the current pane with the one above.
  536        SwapPaneUp,
  537        /// Swaps the current pane with the one below.
  538        SwapPaneDown,
  539        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  540        SwapPaneAdjacent,
  541        /// Move the current pane to be at the far left.
  542        MovePaneLeft,
  543        /// Move the current pane to be at the far right.
  544        MovePaneRight,
  545        /// Move the current pane to be at the very top.
  546        MovePaneUp,
  547        /// Move the current pane to be at the very bottom.
  548        MovePaneDown,
  549    ]
  550);
  551
  552#[derive(PartialEq, Eq, Debug)]
  553pub enum CloseIntent {
  554    /// Quit the program entirely.
  555    Quit,
  556    /// Close a window.
  557    CloseWindow,
  558    /// Replace the workspace in an existing window.
  559    ReplaceWindow,
  560}
  561
  562#[derive(Clone)]
  563pub struct Toast {
  564    id: NotificationId,
  565    msg: Cow<'static, str>,
  566    autohide: bool,
  567    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  568}
  569
  570impl Toast {
  571    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  572        Toast {
  573            id,
  574            msg: msg.into(),
  575            on_click: None,
  576            autohide: false,
  577        }
  578    }
  579
  580    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  581    where
  582        M: Into<Cow<'static, str>>,
  583        F: Fn(&mut Window, &mut App) + 'static,
  584    {
  585        self.on_click = Some((message.into(), Arc::new(on_click)));
  586        self
  587    }
  588
  589    pub fn autohide(mut self) -> Self {
  590        self.autohide = true;
  591        self
  592    }
  593}
  594
  595impl PartialEq for Toast {
  596    fn eq(&self, other: &Self) -> bool {
  597        self.id == other.id
  598            && self.msg == other.msg
  599            && self.on_click.is_some() == other.on_click.is_some()
  600    }
  601}
  602
  603/// Opens a new terminal with the specified working directory.
  604#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  605#[action(namespace = workspace)]
  606#[serde(deny_unknown_fields)]
  607pub struct OpenTerminal {
  608    pub working_directory: PathBuf,
  609    /// If true, creates a local terminal even in remote projects.
  610    #[serde(default)]
  611    pub local: bool,
  612}
  613
  614#[derive(
  615    Clone,
  616    Copy,
  617    Debug,
  618    Default,
  619    Hash,
  620    PartialEq,
  621    Eq,
  622    PartialOrd,
  623    Ord,
  624    serde::Serialize,
  625    serde::Deserialize,
  626)]
  627pub struct WorkspaceId(i64);
  628
  629impl WorkspaceId {
  630    pub fn from_i64(value: i64) -> Self {
  631        Self(value)
  632    }
  633}
  634
  635impl StaticColumnCount for WorkspaceId {}
  636impl Bind for WorkspaceId {
  637    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  638        self.0.bind(statement, start_index)
  639    }
  640}
  641impl Column for WorkspaceId {
  642    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  643        i64::column(statement, start_index)
  644            .map(|(i, next_index)| (Self(i), next_index))
  645            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  646    }
  647}
  648impl From<WorkspaceId> for i64 {
  649    fn from(val: WorkspaceId) -> Self {
  650        val.0
  651    }
  652}
  653
  654fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  655    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  656        workspace_window
  657            .update(cx, |multi_workspace, window, cx| {
  658                let workspace = multi_workspace.workspace().clone();
  659                workspace.update(cx, |workspace, cx| {
  660                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  661                });
  662            })
  663            .ok();
  664    } else {
  665        let task = Workspace::new_local(Vec::new(), app_state.clone(), None, None, None, true, cx);
  666        cx.spawn(async move |cx| {
  667            let OpenResult { window, .. } = task.await?;
  668            window.update(cx, |multi_workspace, window, cx| {
  669                window.activate_window();
  670                let workspace = multi_workspace.workspace().clone();
  671                workspace.update(cx, |workspace, cx| {
  672                    prompt_for_open_path_and_open(workspace, app_state, options, true, window, cx);
  673                });
  674            })?;
  675            anyhow::Ok(())
  676        })
  677        .detach_and_log_err(cx);
  678    }
  679}
  680
  681pub fn prompt_for_open_path_and_open(
  682    workspace: &mut Workspace,
  683    app_state: Arc<AppState>,
  684    options: PathPromptOptions,
  685    create_new_window: bool,
  686    window: &mut Window,
  687    cx: &mut Context<Workspace>,
  688) {
  689    let paths = workspace.prompt_for_open_path(
  690        options,
  691        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  692        window,
  693        cx,
  694    );
  695    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  696    cx.spawn_in(window, async move |this, cx| {
  697        let Some(paths) = paths.await.log_err().flatten() else {
  698            return;
  699        };
  700        if !create_new_window {
  701            if let Some(handle) = multi_workspace_handle {
  702                if let Some(task) = handle
  703                    .update(cx, |multi_workspace, window, cx| {
  704                        multi_workspace.open_project(paths, window, cx)
  705                    })
  706                    .log_err()
  707                {
  708                    task.await.log_err();
  709                }
  710                return;
  711            }
  712        }
  713        if let Some(task) = this
  714            .update_in(cx, |this, window, cx| {
  715                this.open_workspace_for_paths(false, paths, window, cx)
  716            })
  717            .log_err()
  718        {
  719            task.await.log_err();
  720        }
  721    })
  722    .detach();
  723}
  724
  725pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  726    component::init();
  727    theme_preview::init(cx);
  728    toast_layer::init(cx);
  729    history_manager::init(app_state.fs.clone(), cx);
  730
  731    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  732        .on_action(|_: &Reload, cx| reload(cx))
  733        .on_action({
  734            let app_state = Arc::downgrade(&app_state);
  735            move |_: &Open, cx: &mut App| {
  736                if let Some(app_state) = app_state.upgrade() {
  737                    prompt_and_open_paths(
  738                        app_state,
  739                        PathPromptOptions {
  740                            files: true,
  741                            directories: true,
  742                            multiple: true,
  743                            prompt: None,
  744                        },
  745                        cx,
  746                    );
  747                }
  748            }
  749        })
  750        .on_action({
  751            let app_state = Arc::downgrade(&app_state);
  752            move |_: &OpenFiles, cx: &mut App| {
  753                let directories = cx.can_select_mixed_files_and_dirs();
  754                if let Some(app_state) = app_state.upgrade() {
  755                    prompt_and_open_paths(
  756                        app_state,
  757                        PathPromptOptions {
  758                            files: true,
  759                            directories,
  760                            multiple: true,
  761                            prompt: None,
  762                        },
  763                        cx,
  764                    );
  765                }
  766            }
  767        });
  768}
  769
  770type BuildProjectItemFn =
  771    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  772
  773type BuildProjectItemForPathFn =
  774    fn(
  775        &Entity<Project>,
  776        &ProjectPath,
  777        &mut Window,
  778        &mut App,
  779    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  780
  781#[derive(Clone, Default)]
  782struct ProjectItemRegistry {
  783    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  784    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  785}
  786
  787impl ProjectItemRegistry {
  788    fn register<T: ProjectItem>(&mut self) {
  789        self.build_project_item_fns_by_type.insert(
  790            TypeId::of::<T::Item>(),
  791            |item, project, pane, window, cx| {
  792                let item = item.downcast().unwrap();
  793                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  794                    as Box<dyn ItemHandle>
  795            },
  796        );
  797        self.build_project_item_for_path_fns
  798            .push(|project, project_path, window, cx| {
  799                let project_path = project_path.clone();
  800                let is_file = project
  801                    .read(cx)
  802                    .entry_for_path(&project_path, cx)
  803                    .is_some_and(|entry| entry.is_file());
  804                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  805                let is_local = project.read(cx).is_local();
  806                let project_item =
  807                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  808                let project = project.clone();
  809                Some(window.spawn(cx, async move |cx| {
  810                    match project_item.await.with_context(|| {
  811                        format!(
  812                            "opening project path {:?}",
  813                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  814                        )
  815                    }) {
  816                        Ok(project_item) => {
  817                            let project_item = project_item;
  818                            let project_entry_id: Option<ProjectEntryId> =
  819                                project_item.read_with(cx, project::ProjectItem::entry_id);
  820                            let build_workspace_item = Box::new(
  821                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  822                                    Box::new(cx.new(|cx| {
  823                                        T::for_project_item(
  824                                            project,
  825                                            Some(pane),
  826                                            project_item,
  827                                            window,
  828                                            cx,
  829                                        )
  830                                    })) as Box<dyn ItemHandle>
  831                                },
  832                            ) as Box<_>;
  833                            Ok((project_entry_id, build_workspace_item))
  834                        }
  835                        Err(e) => {
  836                            log::warn!("Failed to open a project item: {e:#}");
  837                            if e.error_code() == ErrorCode::Internal {
  838                                if let Some(abs_path) =
  839                                    entry_abs_path.as_deref().filter(|_| is_file)
  840                                {
  841                                    if let Some(broken_project_item_view) =
  842                                        cx.update(|window, cx| {
  843                                            T::for_broken_project_item(
  844                                                abs_path, is_local, &e, window, cx,
  845                                            )
  846                                        })?
  847                                    {
  848                                        let build_workspace_item = Box::new(
  849                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  850                                                cx.new(|_| broken_project_item_view).boxed_clone()
  851                                            },
  852                                        )
  853                                        as Box<_>;
  854                                        return Ok((None, build_workspace_item));
  855                                    }
  856                                }
  857                            }
  858                            Err(e)
  859                        }
  860                    }
  861                }))
  862            });
  863    }
  864
  865    fn open_path(
  866        &self,
  867        project: &Entity<Project>,
  868        path: &ProjectPath,
  869        window: &mut Window,
  870        cx: &mut App,
  871    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  872        let Some(open_project_item) = self
  873            .build_project_item_for_path_fns
  874            .iter()
  875            .rev()
  876            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  877        else {
  878            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  879        };
  880        open_project_item
  881    }
  882
  883    fn build_item<T: project::ProjectItem>(
  884        &self,
  885        item: Entity<T>,
  886        project: Entity<Project>,
  887        pane: Option<&Pane>,
  888        window: &mut Window,
  889        cx: &mut App,
  890    ) -> Option<Box<dyn ItemHandle>> {
  891        let build = self
  892            .build_project_item_fns_by_type
  893            .get(&TypeId::of::<T>())?;
  894        Some(build(item.into_any(), project, pane, window, cx))
  895    }
  896}
  897
  898type WorkspaceItemBuilder =
  899    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  900
  901impl Global for ProjectItemRegistry {}
  902
  903/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  904/// items will get a chance to open the file, starting from the project item that
  905/// was added last.
  906pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  907    cx.default_global::<ProjectItemRegistry>().register::<I>();
  908}
  909
  910#[derive(Default)]
  911pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  912
  913struct FollowableViewDescriptor {
  914    from_state_proto: fn(
  915        Entity<Workspace>,
  916        ViewId,
  917        &mut Option<proto::view::Variant>,
  918        &mut Window,
  919        &mut App,
  920    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  921    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  922}
  923
  924impl Global for FollowableViewRegistry {}
  925
  926impl FollowableViewRegistry {
  927    pub fn register<I: FollowableItem>(cx: &mut App) {
  928        cx.default_global::<Self>().0.insert(
  929            TypeId::of::<I>(),
  930            FollowableViewDescriptor {
  931                from_state_proto: |workspace, id, state, window, cx| {
  932                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  933                        cx.foreground_executor()
  934                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  935                    })
  936                },
  937                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  938            },
  939        );
  940    }
  941
  942    pub fn from_state_proto(
  943        workspace: Entity<Workspace>,
  944        view_id: ViewId,
  945        mut state: Option<proto::view::Variant>,
  946        window: &mut Window,
  947        cx: &mut App,
  948    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  949        cx.update_default_global(|this: &mut Self, cx| {
  950            this.0.values().find_map(|descriptor| {
  951                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  952            })
  953        })
  954    }
  955
  956    pub fn to_followable_view(
  957        view: impl Into<AnyView>,
  958        cx: &App,
  959    ) -> Option<Box<dyn FollowableItemHandle>> {
  960        let this = cx.try_global::<Self>()?;
  961        let view = view.into();
  962        let descriptor = this.0.get(&view.entity_type())?;
  963        Some((descriptor.to_followable_view)(&view))
  964    }
  965}
  966
  967#[derive(Copy, Clone)]
  968struct SerializableItemDescriptor {
  969    deserialize: fn(
  970        Entity<Project>,
  971        WeakEntity<Workspace>,
  972        WorkspaceId,
  973        ItemId,
  974        &mut Window,
  975        &mut Context<Pane>,
  976    ) -> Task<Result<Box<dyn ItemHandle>>>,
  977    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  978    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  979}
  980
  981#[derive(Default)]
  982struct SerializableItemRegistry {
  983    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  984    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  985}
  986
  987impl Global for SerializableItemRegistry {}
  988
  989impl SerializableItemRegistry {
  990    fn deserialize(
  991        item_kind: &str,
  992        project: Entity<Project>,
  993        workspace: WeakEntity<Workspace>,
  994        workspace_id: WorkspaceId,
  995        item_item: ItemId,
  996        window: &mut Window,
  997        cx: &mut Context<Pane>,
  998    ) -> Task<Result<Box<dyn ItemHandle>>> {
  999        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1000            return Task::ready(Err(anyhow!(
 1001                "cannot deserialize {}, descriptor not found",
 1002                item_kind
 1003            )));
 1004        };
 1005
 1006        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1007    }
 1008
 1009    fn cleanup(
 1010        item_kind: &str,
 1011        workspace_id: WorkspaceId,
 1012        loaded_items: Vec<ItemId>,
 1013        window: &mut Window,
 1014        cx: &mut App,
 1015    ) -> Task<Result<()>> {
 1016        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1017            return Task::ready(Err(anyhow!(
 1018                "cannot cleanup {}, descriptor not found",
 1019                item_kind
 1020            )));
 1021        };
 1022
 1023        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1024    }
 1025
 1026    fn view_to_serializable_item_handle(
 1027        view: AnyView,
 1028        cx: &App,
 1029    ) -> Option<Box<dyn SerializableItemHandle>> {
 1030        let this = cx.try_global::<Self>()?;
 1031        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1032        Some((descriptor.view_to_serializable_item)(view))
 1033    }
 1034
 1035    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1036        let this = cx.try_global::<Self>()?;
 1037        this.descriptors_by_kind.get(item_kind).copied()
 1038    }
 1039}
 1040
 1041pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1042    let serialized_item_kind = I::serialized_item_kind();
 1043
 1044    let registry = cx.default_global::<SerializableItemRegistry>();
 1045    let descriptor = SerializableItemDescriptor {
 1046        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1047            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1048            cx.foreground_executor()
 1049                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1050        },
 1051        cleanup: |workspace_id, loaded_items, window, cx| {
 1052            I::cleanup(workspace_id, loaded_items, window, cx)
 1053        },
 1054        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1055    };
 1056    registry
 1057        .descriptors_by_kind
 1058        .insert(Arc::from(serialized_item_kind), descriptor);
 1059    registry
 1060        .descriptors_by_type
 1061        .insert(TypeId::of::<I>(), descriptor);
 1062}
 1063
 1064pub struct AppState {
 1065    pub languages: Arc<LanguageRegistry>,
 1066    pub client: Arc<Client>,
 1067    pub user_store: Entity<UserStore>,
 1068    pub workspace_store: Entity<WorkspaceStore>,
 1069    pub fs: Arc<dyn fs::Fs>,
 1070    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1071    pub node_runtime: NodeRuntime,
 1072    pub session: Entity<AppSession>,
 1073}
 1074
 1075struct GlobalAppState(Weak<AppState>);
 1076
 1077impl Global for GlobalAppState {}
 1078
 1079pub struct WorkspaceStore {
 1080    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1081    client: Arc<Client>,
 1082    _subscriptions: Vec<client::Subscription>,
 1083}
 1084
 1085#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1086pub enum CollaboratorId {
 1087    PeerId(PeerId),
 1088    Agent,
 1089}
 1090
 1091impl From<PeerId> for CollaboratorId {
 1092    fn from(peer_id: PeerId) -> Self {
 1093        CollaboratorId::PeerId(peer_id)
 1094    }
 1095}
 1096
 1097impl From<&PeerId> for CollaboratorId {
 1098    fn from(peer_id: &PeerId) -> Self {
 1099        CollaboratorId::PeerId(*peer_id)
 1100    }
 1101}
 1102
 1103#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1104struct Follower {
 1105    project_id: Option<u64>,
 1106    peer_id: PeerId,
 1107}
 1108
 1109impl AppState {
 1110    #[track_caller]
 1111    pub fn global(cx: &App) -> Weak<Self> {
 1112        cx.global::<GlobalAppState>().0.clone()
 1113    }
 1114    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1115        cx.try_global::<GlobalAppState>()
 1116            .map(|state| state.0.clone())
 1117    }
 1118    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1119        cx.set_global(GlobalAppState(state));
 1120    }
 1121
 1122    #[cfg(any(test, feature = "test-support"))]
 1123    pub fn test(cx: &mut App) -> Arc<Self> {
 1124        use fs::Fs;
 1125        use node_runtime::NodeRuntime;
 1126        use session::Session;
 1127        use settings::SettingsStore;
 1128
 1129        if !cx.has_global::<SettingsStore>() {
 1130            let settings_store = SettingsStore::test(cx);
 1131            cx.set_global(settings_store);
 1132        }
 1133
 1134        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1135        <dyn Fs>::set_global(fs.clone(), cx);
 1136        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1137        let clock = Arc::new(clock::FakeSystemClock::new());
 1138        let http_client = http_client::FakeHttpClient::with_404_response();
 1139        let client = Client::new(clock, http_client, cx);
 1140        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1141        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1142        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1143
 1144        theme::init(theme::LoadThemes::JustBase, cx);
 1145        client::init(&client, cx);
 1146
 1147        Arc::new(Self {
 1148            client,
 1149            fs,
 1150            languages,
 1151            user_store,
 1152            workspace_store,
 1153            node_runtime: NodeRuntime::unavailable(),
 1154            build_window_options: |_, _| Default::default(),
 1155            session,
 1156        })
 1157    }
 1158}
 1159
 1160struct DelayedDebouncedEditAction {
 1161    task: Option<Task<()>>,
 1162    cancel_channel: Option<oneshot::Sender<()>>,
 1163}
 1164
 1165impl DelayedDebouncedEditAction {
 1166    fn new() -> DelayedDebouncedEditAction {
 1167        DelayedDebouncedEditAction {
 1168            task: None,
 1169            cancel_channel: None,
 1170        }
 1171    }
 1172
 1173    fn fire_new<F>(
 1174        &mut self,
 1175        delay: Duration,
 1176        window: &mut Window,
 1177        cx: &mut Context<Workspace>,
 1178        func: F,
 1179    ) where
 1180        F: 'static
 1181            + Send
 1182            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1183    {
 1184        if let Some(channel) = self.cancel_channel.take() {
 1185            _ = channel.send(());
 1186        }
 1187
 1188        let (sender, mut receiver) = oneshot::channel::<()>();
 1189        self.cancel_channel = Some(sender);
 1190
 1191        let previous_task = self.task.take();
 1192        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1193            let mut timer = cx.background_executor().timer(delay).fuse();
 1194            if let Some(previous_task) = previous_task {
 1195                previous_task.await;
 1196            }
 1197
 1198            futures::select_biased! {
 1199                _ = receiver => return,
 1200                    _ = timer => {}
 1201            }
 1202
 1203            if let Some(result) = workspace
 1204                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1205                .log_err()
 1206            {
 1207                result.await.log_err();
 1208            }
 1209        }));
 1210    }
 1211}
 1212
 1213pub enum Event {
 1214    PaneAdded(Entity<Pane>),
 1215    PaneRemoved,
 1216    ItemAdded {
 1217        item: Box<dyn ItemHandle>,
 1218    },
 1219    ActiveItemChanged,
 1220    ItemRemoved {
 1221        item_id: EntityId,
 1222    },
 1223    UserSavedItem {
 1224        pane: WeakEntity<Pane>,
 1225        item: Box<dyn WeakItemHandle>,
 1226        save_intent: SaveIntent,
 1227    },
 1228    ContactRequestedJoin(u64),
 1229    WorkspaceCreated(WeakEntity<Workspace>),
 1230    OpenBundledFile {
 1231        text: Cow<'static, str>,
 1232        title: &'static str,
 1233        language: &'static str,
 1234    },
 1235    ZoomChanged,
 1236    ModalOpened,
 1237    Activate,
 1238    PanelAdded(AnyView),
 1239}
 1240
 1241#[derive(Debug, Clone)]
 1242pub enum OpenVisible {
 1243    All,
 1244    None,
 1245    OnlyFiles,
 1246    OnlyDirectories,
 1247}
 1248
 1249enum WorkspaceLocation {
 1250    // Valid local paths or SSH project to serialize
 1251    Location(SerializedWorkspaceLocation, PathList),
 1252    // No valid location found hence clear session id
 1253    DetachFromSession,
 1254    // No valid location found to serialize
 1255    None,
 1256}
 1257
 1258type PromptForNewPath = Box<
 1259    dyn Fn(
 1260        &mut Workspace,
 1261        DirectoryLister,
 1262        Option<String>,
 1263        &mut Window,
 1264        &mut Context<Workspace>,
 1265    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1266>;
 1267
 1268type PromptForOpenPath = Box<
 1269    dyn Fn(
 1270        &mut Workspace,
 1271        DirectoryLister,
 1272        &mut Window,
 1273        &mut Context<Workspace>,
 1274    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1275>;
 1276
 1277#[derive(Default)]
 1278struct DispatchingKeystrokes {
 1279    dispatched: HashSet<Vec<Keystroke>>,
 1280    queue: VecDeque<Keystroke>,
 1281    task: Option<Shared<Task<()>>>,
 1282}
 1283
 1284/// Collects everything project-related for a certain window opened.
 1285/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1286///
 1287/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1288/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1289/// that can be used to register a global action to be triggered from any place in the window.
 1290pub struct Workspace {
 1291    weak_self: WeakEntity<Self>,
 1292    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1293    zoomed: Option<AnyWeakView>,
 1294    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1295    zoomed_position: Option<DockPosition>,
 1296    center: PaneGroup,
 1297    left_dock: Entity<Dock>,
 1298    bottom_dock: Entity<Dock>,
 1299    right_dock: Entity<Dock>,
 1300    panes: Vec<Entity<Pane>>,
 1301    active_worktree_override: Option<WorktreeId>,
 1302    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1303    active_pane: Entity<Pane>,
 1304    last_active_center_pane: Option<WeakEntity<Pane>>,
 1305    last_active_view_id: Option<proto::ViewId>,
 1306    status_bar: Entity<StatusBar>,
 1307    pub(crate) modal_layer: Entity<ModalLayer>,
 1308    toast_layer: Entity<ToastLayer>,
 1309    titlebar_item: Option<AnyView>,
 1310    notifications: Notifications,
 1311    suppressed_notifications: HashSet<NotificationId>,
 1312    project: Entity<Project>,
 1313    follower_states: HashMap<CollaboratorId, FollowerState>,
 1314    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1315    window_edited: bool,
 1316    last_window_title: Option<String>,
 1317    dirty_items: HashMap<EntityId, Subscription>,
 1318    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1319    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1320    database_id: Option<WorkspaceId>,
 1321    app_state: Arc<AppState>,
 1322    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1323    _subscriptions: Vec<Subscription>,
 1324    _apply_leader_updates: Task<Result<()>>,
 1325    _observe_current_user: Task<Result<()>>,
 1326    _schedule_serialize_workspace: Option<Task<()>>,
 1327    _serialize_workspace_task: Option<Task<()>>,
 1328    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1329    pane_history_timestamp: Arc<AtomicUsize>,
 1330    bounds: Bounds<Pixels>,
 1331    pub centered_layout: bool,
 1332    bounds_save_task_queued: Option<Task<()>>,
 1333    on_prompt_for_new_path: Option<PromptForNewPath>,
 1334    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1335    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1336    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1337    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1338    _items_serializer: Task<Result<()>>,
 1339    session_id: Option<String>,
 1340    scheduled_tasks: Vec<Task<()>>,
 1341    last_open_dock_positions: Vec<DockPosition>,
 1342    removing: bool,
 1343    _panels_task: Option<Task<Result<()>>>,
 1344    sidebar_focus_handle: Option<FocusHandle>,
 1345}
 1346
 1347impl EventEmitter<Event> for Workspace {}
 1348
 1349#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1350pub struct ViewId {
 1351    pub creator: CollaboratorId,
 1352    pub id: u64,
 1353}
 1354
 1355pub struct FollowerState {
 1356    center_pane: Entity<Pane>,
 1357    dock_pane: Option<Entity<Pane>>,
 1358    active_view_id: Option<ViewId>,
 1359    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1360}
 1361
 1362struct FollowerView {
 1363    view: Box<dyn FollowableItemHandle>,
 1364    location: Option<proto::PanelId>,
 1365}
 1366
 1367impl Workspace {
 1368    pub fn new(
 1369        workspace_id: Option<WorkspaceId>,
 1370        project: Entity<Project>,
 1371        app_state: Arc<AppState>,
 1372        window: &mut Window,
 1373        cx: &mut Context<Self>,
 1374    ) -> Self {
 1375        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1376            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1377                if let TrustedWorktreesEvent::Trusted(..) = e {
 1378                    // Do not persist auto trusted worktrees
 1379                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1380                        worktrees_store.update(cx, |worktrees_store, cx| {
 1381                            worktrees_store.schedule_serialization(
 1382                                cx,
 1383                                |new_trusted_worktrees, cx| {
 1384                                    let timeout =
 1385                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1386                                    let db = WorkspaceDb::global(cx);
 1387                                    cx.background_spawn(async move {
 1388                                        timeout.await;
 1389                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1390                                            .await
 1391                                            .log_err();
 1392                                    })
 1393                                },
 1394                            )
 1395                        });
 1396                    }
 1397                }
 1398            })
 1399            .detach();
 1400
 1401            cx.observe_global::<SettingsStore>(|_, cx| {
 1402                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1403                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1404                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1405                            trusted_worktrees.auto_trust_all(cx);
 1406                        })
 1407                    }
 1408                }
 1409            })
 1410            .detach();
 1411        }
 1412
 1413        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1414            match event {
 1415                project::Event::RemoteIdChanged(_) => {
 1416                    this.update_window_title(window, cx);
 1417                }
 1418
 1419                project::Event::CollaboratorLeft(peer_id) => {
 1420                    this.collaborator_left(*peer_id, window, cx);
 1421                }
 1422
 1423                &project::Event::WorktreeRemoved(_) => {
 1424                    this.update_window_title(window, cx);
 1425                    this.serialize_workspace(window, cx);
 1426                    this.update_history(cx);
 1427                }
 1428
 1429                &project::Event::WorktreeAdded(id) => {
 1430                    this.update_window_title(window, cx);
 1431                    if this
 1432                        .project()
 1433                        .read(cx)
 1434                        .worktree_for_id(id, cx)
 1435                        .is_some_and(|wt| wt.read(cx).is_visible())
 1436                    {
 1437                        this.serialize_workspace(window, cx);
 1438                        this.update_history(cx);
 1439                    }
 1440                }
 1441                project::Event::WorktreeUpdatedEntries(..) => {
 1442                    this.update_window_title(window, cx);
 1443                    this.serialize_workspace(window, cx);
 1444                }
 1445
 1446                project::Event::DisconnectedFromHost => {
 1447                    this.update_window_edited(window, cx);
 1448                    let leaders_to_unfollow =
 1449                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1450                    for leader_id in leaders_to_unfollow {
 1451                        this.unfollow(leader_id, window, cx);
 1452                    }
 1453                }
 1454
 1455                project::Event::DisconnectedFromRemote {
 1456                    server_not_running: _,
 1457                } => {
 1458                    this.update_window_edited(window, cx);
 1459                }
 1460
 1461                project::Event::Closed => {
 1462                    window.remove_window();
 1463                }
 1464
 1465                project::Event::DeletedEntry(_, entry_id) => {
 1466                    for pane in this.panes.iter() {
 1467                        pane.update(cx, |pane, cx| {
 1468                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1469                        });
 1470                    }
 1471                }
 1472
 1473                project::Event::Toast {
 1474                    notification_id,
 1475                    message,
 1476                    link,
 1477                } => this.show_notification(
 1478                    NotificationId::named(notification_id.clone()),
 1479                    cx,
 1480                    |cx| {
 1481                        let mut notification = MessageNotification::new(message.clone(), cx);
 1482                        if let Some(link) = link {
 1483                            notification = notification
 1484                                .more_info_message(link.label)
 1485                                .more_info_url(link.url);
 1486                        }
 1487
 1488                        cx.new(|_| notification)
 1489                    },
 1490                ),
 1491
 1492                project::Event::HideToast { notification_id } => {
 1493                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1494                }
 1495
 1496                project::Event::LanguageServerPrompt(request) => {
 1497                    struct LanguageServerPrompt;
 1498
 1499                    this.show_notification(
 1500                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1501                        cx,
 1502                        |cx| {
 1503                            cx.new(|cx| {
 1504                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1505                            })
 1506                        },
 1507                    );
 1508                }
 1509
 1510                project::Event::AgentLocationChanged => {
 1511                    this.handle_agent_location_changed(window, cx)
 1512                }
 1513
 1514                _ => {}
 1515            }
 1516            cx.notify()
 1517        })
 1518        .detach();
 1519
 1520        cx.subscribe_in(
 1521            &project.read(cx).breakpoint_store(),
 1522            window,
 1523            |workspace, _, event, window, cx| match event {
 1524                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1525                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1526                    workspace.serialize_workspace(window, cx);
 1527                }
 1528                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1529            },
 1530        )
 1531        .detach();
 1532        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1533            cx.subscribe_in(
 1534                &toolchain_store,
 1535                window,
 1536                |workspace, _, event, window, cx| match event {
 1537                    ToolchainStoreEvent::CustomToolchainsModified => {
 1538                        workspace.serialize_workspace(window, cx);
 1539                    }
 1540                    _ => {}
 1541                },
 1542            )
 1543            .detach();
 1544        }
 1545
 1546        cx.on_focus_lost(window, |this, window, cx| {
 1547            let focus_handle = this.focus_handle(cx);
 1548            window.focus(&focus_handle, cx);
 1549        })
 1550        .detach();
 1551
 1552        let weak_handle = cx.entity().downgrade();
 1553        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1554
 1555        let center_pane = cx.new(|cx| {
 1556            let mut center_pane = Pane::new(
 1557                weak_handle.clone(),
 1558                project.clone(),
 1559                pane_history_timestamp.clone(),
 1560                None,
 1561                NewFile.boxed_clone(),
 1562                true,
 1563                window,
 1564                cx,
 1565            );
 1566            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1567            center_pane.set_should_display_welcome_page(true);
 1568            center_pane
 1569        });
 1570        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1571            .detach();
 1572
 1573        window.focus(&center_pane.focus_handle(cx), cx);
 1574
 1575        cx.emit(Event::PaneAdded(center_pane.clone()));
 1576
 1577        let any_window_handle = window.window_handle();
 1578        app_state.workspace_store.update(cx, |store, _| {
 1579            store
 1580                .workspaces
 1581                .insert((any_window_handle, weak_handle.clone()));
 1582        });
 1583
 1584        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1585        let mut connection_status = app_state.client.status();
 1586        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1587            current_user.next().await;
 1588            connection_status.next().await;
 1589            let mut stream =
 1590                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1591
 1592            while stream.recv().await.is_some() {
 1593                this.update(cx, |_, cx| cx.notify())?;
 1594            }
 1595            anyhow::Ok(())
 1596        });
 1597
 1598        // All leader updates are enqueued and then processed in a single task, so
 1599        // that each asynchronous operation can be run in order.
 1600        let (leader_updates_tx, mut leader_updates_rx) =
 1601            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1602        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1603            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1604                Self::process_leader_update(&this, leader_id, update, cx)
 1605                    .await
 1606                    .log_err();
 1607            }
 1608
 1609            Ok(())
 1610        });
 1611
 1612        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1613        let modal_layer = cx.new(|_| ModalLayer::new());
 1614        let toast_layer = cx.new(|_| ToastLayer::new());
 1615        cx.subscribe(
 1616            &modal_layer,
 1617            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1618                cx.emit(Event::ModalOpened);
 1619            },
 1620        )
 1621        .detach();
 1622
 1623        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1624        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1625        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1626        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1627        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1628        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1629        let status_bar = cx.new(|cx| {
 1630            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1631            status_bar.add_left_item(left_dock_buttons, window, cx);
 1632            status_bar.add_right_item(right_dock_buttons, window, cx);
 1633            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1634            status_bar
 1635        });
 1636
 1637        let session_id = app_state.session.read(cx).id().to_owned();
 1638
 1639        let mut active_call = None;
 1640        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1641            let subscriptions =
 1642                vec![
 1643                    call.0
 1644                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1645                ];
 1646            active_call = Some((call, subscriptions));
 1647        }
 1648
 1649        let (serializable_items_tx, serializable_items_rx) =
 1650            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1651        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1652            Self::serialize_items(&this, serializable_items_rx, cx).await
 1653        });
 1654
 1655        let subscriptions = vec![
 1656            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1657            cx.observe_window_bounds(window, move |this, window, cx| {
 1658                if this.bounds_save_task_queued.is_some() {
 1659                    return;
 1660                }
 1661                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1662                    cx.background_executor()
 1663                        .timer(Duration::from_millis(100))
 1664                        .await;
 1665                    this.update_in(cx, |this, window, cx| {
 1666                        this.save_window_bounds(window, cx).detach();
 1667                        this.bounds_save_task_queued.take();
 1668                    })
 1669                    .ok();
 1670                }));
 1671                cx.notify();
 1672            }),
 1673            cx.observe_window_appearance(window, |_, window, cx| {
 1674                let window_appearance = window.appearance();
 1675
 1676                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1677
 1678                GlobalTheme::reload_theme(cx);
 1679                GlobalTheme::reload_icon_theme(cx);
 1680            }),
 1681            cx.on_release({
 1682                let weak_handle = weak_handle.clone();
 1683                move |this, cx| {
 1684                    this.app_state.workspace_store.update(cx, move |store, _| {
 1685                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1686                    })
 1687                }
 1688            }),
 1689        ];
 1690
 1691        cx.defer_in(window, move |this, window, cx| {
 1692            this.update_window_title(window, cx);
 1693            this.show_initial_notifications(cx);
 1694        });
 1695
 1696        let mut center = PaneGroup::new(center_pane.clone());
 1697        center.set_is_center(true);
 1698        center.mark_positions(cx);
 1699
 1700        Workspace {
 1701            weak_self: weak_handle.clone(),
 1702            zoomed: None,
 1703            zoomed_position: None,
 1704            previous_dock_drag_coordinates: None,
 1705            center,
 1706            panes: vec![center_pane.clone()],
 1707            panes_by_item: Default::default(),
 1708            active_pane: center_pane.clone(),
 1709            last_active_center_pane: Some(center_pane.downgrade()),
 1710            last_active_view_id: None,
 1711            status_bar,
 1712            modal_layer,
 1713            toast_layer,
 1714            titlebar_item: None,
 1715            active_worktree_override: None,
 1716            notifications: Notifications::default(),
 1717            suppressed_notifications: HashSet::default(),
 1718            left_dock,
 1719            bottom_dock,
 1720            right_dock,
 1721            _panels_task: None,
 1722            project: project.clone(),
 1723            follower_states: Default::default(),
 1724            last_leaders_by_pane: Default::default(),
 1725            dispatching_keystrokes: Default::default(),
 1726            window_edited: false,
 1727            last_window_title: None,
 1728            dirty_items: Default::default(),
 1729            active_call,
 1730            database_id: workspace_id,
 1731            app_state,
 1732            _observe_current_user,
 1733            _apply_leader_updates,
 1734            _schedule_serialize_workspace: None,
 1735            _serialize_workspace_task: None,
 1736            _schedule_serialize_ssh_paths: None,
 1737            leader_updates_tx,
 1738            _subscriptions: subscriptions,
 1739            pane_history_timestamp,
 1740            workspace_actions: Default::default(),
 1741            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1742            bounds: Default::default(),
 1743            centered_layout: false,
 1744            bounds_save_task_queued: None,
 1745            on_prompt_for_new_path: None,
 1746            on_prompt_for_open_path: None,
 1747            terminal_provider: None,
 1748            debugger_provider: None,
 1749            serializable_items_tx,
 1750            _items_serializer,
 1751            session_id: Some(session_id),
 1752
 1753            scheduled_tasks: Vec::new(),
 1754            last_open_dock_positions: Vec::new(),
 1755            removing: false,
 1756            sidebar_focus_handle: None,
 1757        }
 1758    }
 1759
 1760    pub fn new_local(
 1761        abs_paths: Vec<PathBuf>,
 1762        app_state: Arc<AppState>,
 1763        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1764        env: Option<HashMap<String, String>>,
 1765        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1766        activate: bool,
 1767        cx: &mut App,
 1768    ) -> Task<anyhow::Result<OpenResult>> {
 1769        let project_handle = Project::local(
 1770            app_state.client.clone(),
 1771            app_state.node_runtime.clone(),
 1772            app_state.user_store.clone(),
 1773            app_state.languages.clone(),
 1774            app_state.fs.clone(),
 1775            env,
 1776            Default::default(),
 1777            cx,
 1778        );
 1779
 1780        let db = WorkspaceDb::global(cx);
 1781        let kvp = db::kvp::KeyValueStore::global(cx);
 1782        cx.spawn(async move |cx| {
 1783            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1784            for path in abs_paths.into_iter() {
 1785                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1786                    paths_to_open.push(canonical)
 1787                } else {
 1788                    paths_to_open.push(path)
 1789                }
 1790            }
 1791
 1792            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1793
 1794            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1795                paths_to_open = paths.ordered_paths().cloned().collect();
 1796                if !paths.is_lexicographically_ordered() {
 1797                    project_handle.update(cx, |project, cx| {
 1798                        project.set_worktrees_reordered(true, cx);
 1799                    });
 1800                }
 1801            }
 1802
 1803            // Get project paths for all of the abs_paths
 1804            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1805                Vec::with_capacity(paths_to_open.len());
 1806
 1807            for path in paths_to_open.into_iter() {
 1808                if let Some((_, project_entry)) = cx
 1809                    .update(|cx| {
 1810                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1811                    })
 1812                    .await
 1813                    .log_err()
 1814                {
 1815                    project_paths.push((path, Some(project_entry)));
 1816                } else {
 1817                    project_paths.push((path, None));
 1818                }
 1819            }
 1820
 1821            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1822                serialized_workspace.id
 1823            } else {
 1824                db.next_id().await.unwrap_or_else(|_| Default::default())
 1825            };
 1826
 1827            let toolchains = db.toolchains(workspace_id).await?;
 1828
 1829            for (toolchain, worktree_path, path) in toolchains {
 1830                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1831                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1832                    this.find_worktree(&worktree_path, cx)
 1833                        .and_then(|(worktree, rel_path)| {
 1834                            if rel_path.is_empty() {
 1835                                Some(worktree.read(cx).id())
 1836                            } else {
 1837                                None
 1838                            }
 1839                        })
 1840                }) else {
 1841                    // We did not find a worktree with a given path, but that's whatever.
 1842                    continue;
 1843                };
 1844                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1845                    continue;
 1846                }
 1847
 1848                project_handle
 1849                    .update(cx, |this, cx| {
 1850                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1851                    })
 1852                    .await;
 1853            }
 1854            if let Some(workspace) = serialized_workspace.as_ref() {
 1855                project_handle.update(cx, |this, cx| {
 1856                    for (scope, toolchains) in &workspace.user_toolchains {
 1857                        for toolchain in toolchains {
 1858                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1859                        }
 1860                    }
 1861                });
 1862            }
 1863
 1864            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1865                if let Some(window) = requesting_window {
 1866                    let centered_layout = serialized_workspace
 1867                        .as_ref()
 1868                        .map(|w| w.centered_layout)
 1869                        .unwrap_or(false);
 1870
 1871                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1872                        let workspace = cx.new(|cx| {
 1873                            let mut workspace = Workspace::new(
 1874                                Some(workspace_id),
 1875                                project_handle.clone(),
 1876                                app_state.clone(),
 1877                                window,
 1878                                cx,
 1879                            );
 1880
 1881                            workspace.centered_layout = centered_layout;
 1882
 1883                            // Call init callback to add items before window renders
 1884                            if let Some(init) = init {
 1885                                init(&mut workspace, window, cx);
 1886                            }
 1887
 1888                            workspace
 1889                        });
 1890                        if activate {
 1891                            multi_workspace.activate(workspace.clone(), cx);
 1892                        } else {
 1893                            multi_workspace.add_workspace(workspace.clone(), cx);
 1894                        }
 1895                        workspace
 1896                    })?;
 1897                    (window, workspace)
 1898                } else {
 1899                    let window_bounds_override = window_bounds_env_override();
 1900
 1901                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1902                        (Some(WindowBounds::Windowed(bounds)), None)
 1903                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1904                        && let Some(display) = workspace.display
 1905                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1906                    {
 1907                        // Reopening an existing workspace - restore its saved bounds
 1908                        (Some(bounds.0), Some(display))
 1909                    } else if let Some((display, bounds)) =
 1910                        persistence::read_default_window_bounds(&kvp)
 1911                    {
 1912                        // New or empty workspace - use the last known window bounds
 1913                        (Some(bounds), Some(display))
 1914                    } else {
 1915                        // New window - let GPUI's default_bounds() handle cascading
 1916                        (None, None)
 1917                    };
 1918
 1919                    // Use the serialized workspace to construct the new window
 1920                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1921                    options.window_bounds = window_bounds;
 1922                    let centered_layout = serialized_workspace
 1923                        .as_ref()
 1924                        .map(|w| w.centered_layout)
 1925                        .unwrap_or(false);
 1926                    let window = cx.open_window(options, {
 1927                        let app_state = app_state.clone();
 1928                        let project_handle = project_handle.clone();
 1929                        move |window, cx| {
 1930                            let workspace = cx.new(|cx| {
 1931                                let mut workspace = Workspace::new(
 1932                                    Some(workspace_id),
 1933                                    project_handle,
 1934                                    app_state,
 1935                                    window,
 1936                                    cx,
 1937                                );
 1938                                workspace.centered_layout = centered_layout;
 1939
 1940                                // Call init callback to add items before window renders
 1941                                if let Some(init) = init {
 1942                                    init(&mut workspace, window, cx);
 1943                                }
 1944
 1945                                workspace
 1946                            });
 1947                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 1948                        }
 1949                    })?;
 1950                    let workspace =
 1951                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1952                            multi_workspace.workspace().clone()
 1953                        })?;
 1954                    (window, workspace)
 1955                };
 1956
 1957            notify_if_database_failed(window, cx);
 1958            // Check if this is an empty workspace (no paths to open)
 1959            // An empty workspace is one where project_paths is empty
 1960            let is_empty_workspace = project_paths.is_empty();
 1961            // Check if serialized workspace has paths before it's moved
 1962            let serialized_workspace_has_paths = serialized_workspace
 1963                .as_ref()
 1964                .map(|ws| !ws.paths.is_empty())
 1965                .unwrap_or(false);
 1966
 1967            let opened_items = window
 1968                .update(cx, |_, window, cx| {
 1969                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1970                        open_items(serialized_workspace, project_paths, window, cx)
 1971                    })
 1972                })?
 1973                .await
 1974                .unwrap_or_default();
 1975
 1976            // Restore default dock state for empty workspaces
 1977            // Only restore if:
 1978            // 1. This is an empty workspace (no paths), AND
 1979            // 2. The serialized workspace either doesn't exist or has no paths
 1980            if is_empty_workspace && !serialized_workspace_has_paths {
 1981                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 1982                    window
 1983                        .update(cx, |_, window, cx| {
 1984                            workspace.update(cx, |workspace, cx| {
 1985                                for (dock, serialized_dock) in [
 1986                                    (&workspace.right_dock, &default_docks.right),
 1987                                    (&workspace.left_dock, &default_docks.left),
 1988                                    (&workspace.bottom_dock, &default_docks.bottom),
 1989                                ] {
 1990                                    dock.update(cx, |dock, cx| {
 1991                                        dock.serialized_dock = Some(serialized_dock.clone());
 1992                                        dock.restore_state(window, cx);
 1993                                    });
 1994                                }
 1995                                cx.notify();
 1996                            });
 1997                        })
 1998                        .log_err();
 1999                }
 2000            }
 2001
 2002            window
 2003                .update(cx, |_, _window, cx| {
 2004                    workspace.update(cx, |this: &mut Workspace, cx| {
 2005                        this.update_history(cx);
 2006                    });
 2007                })
 2008                .log_err();
 2009            Ok(OpenResult {
 2010                window,
 2011                workspace,
 2012                opened_items,
 2013            })
 2014        })
 2015    }
 2016
 2017    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2018        self.weak_self.clone()
 2019    }
 2020
 2021    pub fn left_dock(&self) -> &Entity<Dock> {
 2022        &self.left_dock
 2023    }
 2024
 2025    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2026        &self.bottom_dock
 2027    }
 2028
 2029    pub fn set_bottom_dock_layout(
 2030        &mut self,
 2031        layout: BottomDockLayout,
 2032        window: &mut Window,
 2033        cx: &mut Context<Self>,
 2034    ) {
 2035        let fs = self.project().read(cx).fs();
 2036        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2037            content.workspace.bottom_dock_layout = Some(layout);
 2038        });
 2039
 2040        cx.notify();
 2041        self.serialize_workspace(window, cx);
 2042    }
 2043
 2044    pub fn right_dock(&self) -> &Entity<Dock> {
 2045        &self.right_dock
 2046    }
 2047
 2048    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2049        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2050    }
 2051
 2052    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2053        let left_dock = self.left_dock.read(cx);
 2054        let left_visible = left_dock.is_open();
 2055        let left_active_panel = left_dock
 2056            .active_panel()
 2057            .map(|panel| panel.persistent_name().to_string());
 2058        // `zoomed_position` is kept in sync with individual panel zoom state
 2059        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2060        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2061
 2062        let right_dock = self.right_dock.read(cx);
 2063        let right_visible = right_dock.is_open();
 2064        let right_active_panel = right_dock
 2065            .active_panel()
 2066            .map(|panel| panel.persistent_name().to_string());
 2067        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2068
 2069        let bottom_dock = self.bottom_dock.read(cx);
 2070        let bottom_visible = bottom_dock.is_open();
 2071        let bottom_active_panel = bottom_dock
 2072            .active_panel()
 2073            .map(|panel| panel.persistent_name().to_string());
 2074        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2075
 2076        DockStructure {
 2077            left: DockData {
 2078                visible: left_visible,
 2079                active_panel: left_active_panel,
 2080                zoom: left_dock_zoom,
 2081            },
 2082            right: DockData {
 2083                visible: right_visible,
 2084                active_panel: right_active_panel,
 2085                zoom: right_dock_zoom,
 2086            },
 2087            bottom: DockData {
 2088                visible: bottom_visible,
 2089                active_panel: bottom_active_panel,
 2090                zoom: bottom_dock_zoom,
 2091            },
 2092        }
 2093    }
 2094
 2095    pub fn set_dock_structure(
 2096        &self,
 2097        docks: DockStructure,
 2098        window: &mut Window,
 2099        cx: &mut Context<Self>,
 2100    ) {
 2101        for (dock, data) in [
 2102            (&self.left_dock, docks.left),
 2103            (&self.bottom_dock, docks.bottom),
 2104            (&self.right_dock, docks.right),
 2105        ] {
 2106            dock.update(cx, |dock, cx| {
 2107                dock.serialized_dock = Some(data);
 2108                dock.restore_state(window, cx);
 2109            });
 2110        }
 2111    }
 2112
 2113    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2114        self.items(cx)
 2115            .filter_map(|item| {
 2116                let project_path = item.project_path(cx)?;
 2117                self.project.read(cx).absolute_path(&project_path, cx)
 2118            })
 2119            .collect()
 2120    }
 2121
 2122    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2123        match position {
 2124            DockPosition::Left => &self.left_dock,
 2125            DockPosition::Bottom => &self.bottom_dock,
 2126            DockPosition::Right => &self.right_dock,
 2127        }
 2128    }
 2129
 2130    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2131        self.all_docks().into_iter().find_map(|dock| {
 2132            let dock = dock.read(cx);
 2133            let panel = dock.panel::<T>()?;
 2134            dock.stored_panel_size_state(&panel)
 2135        })
 2136    }
 2137
 2138    pub fn persisted_panel_size_state(
 2139        &self,
 2140        panel_key: &'static str,
 2141        cx: &App,
 2142    ) -> Option<dock::PanelSizeState> {
 2143        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2144    }
 2145
 2146    pub fn persist_panel_size_state(
 2147        &self,
 2148        panel_key: &str,
 2149        size_state: dock::PanelSizeState,
 2150        cx: &mut App,
 2151    ) {
 2152        let Some(workspace_id) = self
 2153            .database_id()
 2154            .map(|id| i64::from(id).to_string())
 2155            .or(self.session_id())
 2156        else {
 2157            return;
 2158        };
 2159
 2160        let kvp = db::kvp::KeyValueStore::global(cx);
 2161        let panel_key = panel_key.to_string();
 2162        cx.background_spawn(async move {
 2163            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2164            scope
 2165                .write(
 2166                    format!("{workspace_id}:{panel_key}"),
 2167                    serde_json::to_string(&size_state)?,
 2168                )
 2169                .await
 2170        })
 2171        .detach_and_log_err(cx);
 2172    }
 2173
 2174    pub fn set_panel_size_state<T: Panel>(
 2175        &mut self,
 2176        size_state: dock::PanelSizeState,
 2177        window: &mut Window,
 2178        cx: &mut Context<Self>,
 2179    ) -> bool {
 2180        let Some(panel) = self.panel::<T>(cx) else {
 2181            return false;
 2182        };
 2183
 2184        let dock = self.dock_at_position(panel.position(window, cx));
 2185        let did_set = dock.update(cx, |dock, cx| {
 2186            dock.set_panel_size_state(&panel, size_state, cx)
 2187        });
 2188
 2189        if did_set {
 2190            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2191        }
 2192
 2193        did_set
 2194    }
 2195
 2196    pub fn flexible_dock_size(
 2197        &self,
 2198        position: DockPosition,
 2199        ratio: f32,
 2200        window: &Window,
 2201        cx: &App,
 2202    ) -> Option<Pixels> {
 2203        if position.axis() != Axis::Horizontal {
 2204            return None;
 2205        }
 2206
 2207        let available_width = self.available_width_for_horizontal_dock(position, window, cx)?;
 2208        Some((available_width * ratio.clamp(0.0, 1.0)).max(RESIZE_HANDLE_SIZE))
 2209    }
 2210
 2211    pub fn resolved_dock_panel_size(
 2212        &self,
 2213        dock: &Dock,
 2214        panel: &dyn PanelHandle,
 2215        window: &Window,
 2216        cx: &App,
 2217    ) -> Pixels {
 2218        let size_state = dock.stored_panel_size_state(panel).unwrap_or_default();
 2219        dock::resolve_panel_size(size_state, panel, dock.position(), self, window, cx)
 2220    }
 2221
 2222    pub fn flexible_dock_ratio_for_size(
 2223        &self,
 2224        position: DockPosition,
 2225        size: Pixels,
 2226        window: &Window,
 2227        cx: &App,
 2228    ) -> Option<f32> {
 2229        if position.axis() != Axis::Horizontal {
 2230            return None;
 2231        }
 2232
 2233        let available_width = self.available_width_for_horizontal_dock(position, window, cx)?;
 2234        let available_width = available_width.max(RESIZE_HANDLE_SIZE);
 2235        Some((size / available_width).clamp(0.0, 1.0))
 2236    }
 2237
 2238    fn available_width_for_horizontal_dock(
 2239        &self,
 2240        position: DockPosition,
 2241        window: &Window,
 2242        cx: &App,
 2243    ) -> Option<Pixels> {
 2244        let workspace_width = self.bounds.size.width;
 2245        if workspace_width <= Pixels::ZERO {
 2246            return None;
 2247        }
 2248
 2249        let opposite_position = match position {
 2250            DockPosition::Left => DockPosition::Right,
 2251            DockPosition::Right => DockPosition::Left,
 2252            DockPosition::Bottom => return None,
 2253        };
 2254
 2255        let opposite_width = self
 2256            .dock_at_position(opposite_position)
 2257            .read(cx)
 2258            .stored_active_panel_size(window, cx)
 2259            .unwrap_or(Pixels::ZERO);
 2260
 2261        Some((workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE))
 2262    }
 2263
 2264    pub fn default_flexible_dock_ratio(&self, position: DockPosition) -> Option<f32> {
 2265        if position.axis() != Axis::Horizontal {
 2266            return None;
 2267        }
 2268
 2269        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2270        let pane_fraction = self.center.width_fraction_for_pane(&pane).unwrap_or(1.0);
 2271        Some((pane_fraction / (1.0 + pane_fraction)).clamp(0.0, 1.0))
 2272    }
 2273
 2274    pub fn is_edited(&self) -> bool {
 2275        self.window_edited
 2276    }
 2277
 2278    pub fn add_panel<T: Panel>(
 2279        &mut self,
 2280        panel: Entity<T>,
 2281        window: &mut Window,
 2282        cx: &mut Context<Self>,
 2283    ) {
 2284        let focus_handle = panel.panel_focus_handle(cx);
 2285        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2286            .detach();
 2287
 2288        let dock_position = panel.position(window, cx);
 2289        let dock = self.dock_at_position(dock_position);
 2290        let any_panel = panel.to_any();
 2291        let persisted_size_state =
 2292            self.persisted_panel_size_state(T::panel_key(), cx)
 2293                .or_else(|| {
 2294                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2295                        let state = dock::PanelSizeState {
 2296                            size: Some(size),
 2297                            flexible_size_ratio: None,
 2298                        };
 2299                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2300                        state
 2301                    })
 2302                });
 2303
 2304        dock.update(cx, |dock, cx| {
 2305            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2306            if let Some(size_state) = persisted_size_state {
 2307                dock.set_panel_size_state(&panel, size_state, cx);
 2308            }
 2309            index
 2310        });
 2311
 2312        cx.emit(Event::PanelAdded(any_panel));
 2313    }
 2314
 2315    pub fn remove_panel<T: Panel>(
 2316        &mut self,
 2317        panel: &Entity<T>,
 2318        window: &mut Window,
 2319        cx: &mut Context<Self>,
 2320    ) {
 2321        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2322            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2323        }
 2324    }
 2325
 2326    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2327        &self.status_bar
 2328    }
 2329
 2330    pub fn set_workspace_sidebar_open(
 2331        &self,
 2332        open: bool,
 2333        has_notifications: bool,
 2334        show_toggle: bool,
 2335        cx: &mut App,
 2336    ) {
 2337        self.status_bar.update(cx, |status_bar, cx| {
 2338            status_bar.set_workspace_sidebar_open(open, cx);
 2339            status_bar.set_sidebar_has_notifications(has_notifications, cx);
 2340            status_bar.set_show_sidebar_toggle(show_toggle, cx);
 2341        });
 2342    }
 2343
 2344    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2345        self.sidebar_focus_handle = handle;
 2346    }
 2347
 2348    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2349        StatusBarSettings::get_global(cx).show
 2350    }
 2351
 2352    pub fn app_state(&self) -> &Arc<AppState> {
 2353        &self.app_state
 2354    }
 2355
 2356    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2357        self._panels_task = Some(task);
 2358    }
 2359
 2360    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2361        self._panels_task.take()
 2362    }
 2363
 2364    pub fn user_store(&self) -> &Entity<UserStore> {
 2365        &self.app_state.user_store
 2366    }
 2367
 2368    pub fn project(&self) -> &Entity<Project> {
 2369        &self.project
 2370    }
 2371
 2372    pub fn path_style(&self, cx: &App) -> PathStyle {
 2373        self.project.read(cx).path_style(cx)
 2374    }
 2375
 2376    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2377        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2378
 2379        for pane_handle in &self.panes {
 2380            let pane = pane_handle.read(cx);
 2381
 2382            for entry in pane.activation_history() {
 2383                history.insert(
 2384                    entry.entity_id,
 2385                    history
 2386                        .get(&entry.entity_id)
 2387                        .cloned()
 2388                        .unwrap_or(0)
 2389                        .max(entry.timestamp),
 2390                );
 2391            }
 2392        }
 2393
 2394        history
 2395    }
 2396
 2397    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2398        let mut recent_item: Option<Entity<T>> = None;
 2399        let mut recent_timestamp = 0;
 2400        for pane_handle in &self.panes {
 2401            let pane = pane_handle.read(cx);
 2402            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2403                pane.items().map(|item| (item.item_id(), item)).collect();
 2404            for entry in pane.activation_history() {
 2405                if entry.timestamp > recent_timestamp
 2406                    && let Some(&item) = item_map.get(&entry.entity_id)
 2407                    && let Some(typed_item) = item.act_as::<T>(cx)
 2408                {
 2409                    recent_timestamp = entry.timestamp;
 2410                    recent_item = Some(typed_item);
 2411                }
 2412            }
 2413        }
 2414        recent_item
 2415    }
 2416
 2417    pub fn recent_navigation_history_iter(
 2418        &self,
 2419        cx: &App,
 2420    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2421        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2422        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2423
 2424        for pane in &self.panes {
 2425            let pane = pane.read(cx);
 2426
 2427            pane.nav_history()
 2428                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2429                    if let Some(fs_path) = &fs_path {
 2430                        abs_paths_opened
 2431                            .entry(fs_path.clone())
 2432                            .or_default()
 2433                            .insert(project_path.clone());
 2434                    }
 2435                    let timestamp = entry.timestamp;
 2436                    match history.entry(project_path) {
 2437                        hash_map::Entry::Occupied(mut entry) => {
 2438                            let (_, old_timestamp) = entry.get();
 2439                            if &timestamp > old_timestamp {
 2440                                entry.insert((fs_path, timestamp));
 2441                            }
 2442                        }
 2443                        hash_map::Entry::Vacant(entry) => {
 2444                            entry.insert((fs_path, timestamp));
 2445                        }
 2446                    }
 2447                });
 2448
 2449            if let Some(item) = pane.active_item()
 2450                && let Some(project_path) = item.project_path(cx)
 2451            {
 2452                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2453
 2454                if let Some(fs_path) = &fs_path {
 2455                    abs_paths_opened
 2456                        .entry(fs_path.clone())
 2457                        .or_default()
 2458                        .insert(project_path.clone());
 2459                }
 2460
 2461                history.insert(project_path, (fs_path, std::usize::MAX));
 2462            }
 2463        }
 2464
 2465        history
 2466            .into_iter()
 2467            .sorted_by_key(|(_, (_, order))| *order)
 2468            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2469            .rev()
 2470            .filter(move |(history_path, abs_path)| {
 2471                let latest_project_path_opened = abs_path
 2472                    .as_ref()
 2473                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2474                    .and_then(|project_paths| {
 2475                        project_paths
 2476                            .iter()
 2477                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2478                    });
 2479
 2480                latest_project_path_opened.is_none_or(|path| path == history_path)
 2481            })
 2482    }
 2483
 2484    pub fn recent_navigation_history(
 2485        &self,
 2486        limit: Option<usize>,
 2487        cx: &App,
 2488    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2489        self.recent_navigation_history_iter(cx)
 2490            .take(limit.unwrap_or(usize::MAX))
 2491            .collect()
 2492    }
 2493
 2494    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2495        for pane in &self.panes {
 2496            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2497        }
 2498    }
 2499
 2500    fn navigate_history(
 2501        &mut self,
 2502        pane: WeakEntity<Pane>,
 2503        mode: NavigationMode,
 2504        window: &mut Window,
 2505        cx: &mut Context<Workspace>,
 2506    ) -> Task<Result<()>> {
 2507        self.navigate_history_impl(
 2508            pane,
 2509            mode,
 2510            window,
 2511            &mut |history, cx| history.pop(mode, cx),
 2512            cx,
 2513        )
 2514    }
 2515
 2516    fn navigate_tag_history(
 2517        &mut self,
 2518        pane: WeakEntity<Pane>,
 2519        mode: TagNavigationMode,
 2520        window: &mut Window,
 2521        cx: &mut Context<Workspace>,
 2522    ) -> Task<Result<()>> {
 2523        self.navigate_history_impl(
 2524            pane,
 2525            NavigationMode::Normal,
 2526            window,
 2527            &mut |history, _cx| history.pop_tag(mode),
 2528            cx,
 2529        )
 2530    }
 2531
 2532    fn navigate_history_impl(
 2533        &mut self,
 2534        pane: WeakEntity<Pane>,
 2535        mode: NavigationMode,
 2536        window: &mut Window,
 2537        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2538        cx: &mut Context<Workspace>,
 2539    ) -> Task<Result<()>> {
 2540        let to_load = if let Some(pane) = pane.upgrade() {
 2541            pane.update(cx, |pane, cx| {
 2542                window.focus(&pane.focus_handle(cx), cx);
 2543                loop {
 2544                    // Retrieve the weak item handle from the history.
 2545                    let entry = cb(pane.nav_history_mut(), cx)?;
 2546
 2547                    // If the item is still present in this pane, then activate it.
 2548                    if let Some(index) = entry
 2549                        .item
 2550                        .upgrade()
 2551                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2552                    {
 2553                        let prev_active_item_index = pane.active_item_index();
 2554                        pane.nav_history_mut().set_mode(mode);
 2555                        pane.activate_item(index, true, true, window, cx);
 2556                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2557
 2558                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2559                        if let Some(data) = entry.data {
 2560                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2561                        }
 2562
 2563                        if navigated {
 2564                            break None;
 2565                        }
 2566                    } else {
 2567                        // If the item is no longer present in this pane, then retrieve its
 2568                        // path info in order to reopen it.
 2569                        break pane
 2570                            .nav_history()
 2571                            .path_for_item(entry.item.id())
 2572                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2573                    }
 2574                }
 2575            })
 2576        } else {
 2577            None
 2578        };
 2579
 2580        if let Some((project_path, abs_path, entry)) = to_load {
 2581            // If the item was no longer present, then load it again from its previous path, first try the local path
 2582            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2583
 2584            cx.spawn_in(window, async move  |workspace, cx| {
 2585                let open_by_project_path = open_by_project_path.await;
 2586                let mut navigated = false;
 2587                match open_by_project_path
 2588                    .with_context(|| format!("Navigating to {project_path:?}"))
 2589                {
 2590                    Ok((project_entry_id, build_item)) => {
 2591                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2592                            pane.nav_history_mut().set_mode(mode);
 2593                            pane.active_item().map(|p| p.item_id())
 2594                        })?;
 2595
 2596                        pane.update_in(cx, |pane, window, cx| {
 2597                            let item = pane.open_item(
 2598                                project_entry_id,
 2599                                project_path,
 2600                                true,
 2601                                entry.is_preview,
 2602                                true,
 2603                                None,
 2604                                window, cx,
 2605                                build_item,
 2606                            );
 2607                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2608                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2609                            if let Some(data) = entry.data {
 2610                                navigated |= item.navigate(data, window, cx);
 2611                            }
 2612                        })?;
 2613                    }
 2614                    Err(open_by_project_path_e) => {
 2615                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2616                        // and its worktree is now dropped
 2617                        if let Some(abs_path) = abs_path {
 2618                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2619                                pane.nav_history_mut().set_mode(mode);
 2620                                pane.active_item().map(|p| p.item_id())
 2621                            })?;
 2622                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2623                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2624                            })?;
 2625                            match open_by_abs_path
 2626                                .await
 2627                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2628                            {
 2629                                Ok(item) => {
 2630                                    pane.update_in(cx, |pane, window, cx| {
 2631                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2632                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2633                                        if let Some(data) = entry.data {
 2634                                            navigated |= item.navigate(data, window, cx);
 2635                                        }
 2636                                    })?;
 2637                                }
 2638                                Err(open_by_abs_path_e) => {
 2639                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2640                                }
 2641                            }
 2642                        }
 2643                    }
 2644                }
 2645
 2646                if !navigated {
 2647                    workspace
 2648                        .update_in(cx, |workspace, window, cx| {
 2649                            Self::navigate_history(workspace, pane, mode, window, cx)
 2650                        })?
 2651                        .await?;
 2652                }
 2653
 2654                Ok(())
 2655            })
 2656        } else {
 2657            Task::ready(Ok(()))
 2658        }
 2659    }
 2660
 2661    pub fn go_back(
 2662        &mut self,
 2663        pane: WeakEntity<Pane>,
 2664        window: &mut Window,
 2665        cx: &mut Context<Workspace>,
 2666    ) -> Task<Result<()>> {
 2667        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2668    }
 2669
 2670    pub fn go_forward(
 2671        &mut self,
 2672        pane: WeakEntity<Pane>,
 2673        window: &mut Window,
 2674        cx: &mut Context<Workspace>,
 2675    ) -> Task<Result<()>> {
 2676        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2677    }
 2678
 2679    pub fn reopen_closed_item(
 2680        &mut self,
 2681        window: &mut Window,
 2682        cx: &mut Context<Workspace>,
 2683    ) -> Task<Result<()>> {
 2684        self.navigate_history(
 2685            self.active_pane().downgrade(),
 2686            NavigationMode::ReopeningClosedItem,
 2687            window,
 2688            cx,
 2689        )
 2690    }
 2691
 2692    pub fn client(&self) -> &Arc<Client> {
 2693        &self.app_state.client
 2694    }
 2695
 2696    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2697        self.titlebar_item = Some(item);
 2698        cx.notify();
 2699    }
 2700
 2701    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2702        self.on_prompt_for_new_path = Some(prompt)
 2703    }
 2704
 2705    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2706        self.on_prompt_for_open_path = Some(prompt)
 2707    }
 2708
 2709    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2710        self.terminal_provider = Some(Box::new(provider));
 2711    }
 2712
 2713    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2714        self.debugger_provider = Some(Arc::new(provider));
 2715    }
 2716
 2717    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2718        self.debugger_provider.clone()
 2719    }
 2720
 2721    pub fn prompt_for_open_path(
 2722        &mut self,
 2723        path_prompt_options: PathPromptOptions,
 2724        lister: DirectoryLister,
 2725        window: &mut Window,
 2726        cx: &mut Context<Self>,
 2727    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2728        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2729            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2730            let rx = prompt(self, lister, window, cx);
 2731            self.on_prompt_for_open_path = Some(prompt);
 2732            rx
 2733        } else {
 2734            let (tx, rx) = oneshot::channel();
 2735            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2736
 2737            cx.spawn_in(window, async move |workspace, cx| {
 2738                let Ok(result) = abs_path.await else {
 2739                    return Ok(());
 2740                };
 2741
 2742                match result {
 2743                    Ok(result) => {
 2744                        tx.send(result).ok();
 2745                    }
 2746                    Err(err) => {
 2747                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2748                            workspace.show_portal_error(err.to_string(), cx);
 2749                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2750                            let rx = prompt(workspace, lister, window, cx);
 2751                            workspace.on_prompt_for_open_path = Some(prompt);
 2752                            rx
 2753                        })?;
 2754                        if let Ok(path) = rx.await {
 2755                            tx.send(path).ok();
 2756                        }
 2757                    }
 2758                };
 2759                anyhow::Ok(())
 2760            })
 2761            .detach();
 2762
 2763            rx
 2764        }
 2765    }
 2766
 2767    pub fn prompt_for_new_path(
 2768        &mut self,
 2769        lister: DirectoryLister,
 2770        suggested_name: Option<String>,
 2771        window: &mut Window,
 2772        cx: &mut Context<Self>,
 2773    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2774        if self.project.read(cx).is_via_collab()
 2775            || self.project.read(cx).is_via_remote_server()
 2776            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2777        {
 2778            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2779            let rx = prompt(self, lister, suggested_name, window, cx);
 2780            self.on_prompt_for_new_path = Some(prompt);
 2781            return rx;
 2782        }
 2783
 2784        let (tx, rx) = oneshot::channel();
 2785        cx.spawn_in(window, async move |workspace, cx| {
 2786            let abs_path = workspace.update(cx, |workspace, cx| {
 2787                let relative_to = workspace
 2788                    .most_recent_active_path(cx)
 2789                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2790                    .or_else(|| {
 2791                        let project = workspace.project.read(cx);
 2792                        project.visible_worktrees(cx).find_map(|worktree| {
 2793                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2794                        })
 2795                    })
 2796                    .or_else(std::env::home_dir)
 2797                    .unwrap_or_else(|| PathBuf::from(""));
 2798                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2799            })?;
 2800            let abs_path = match abs_path.await? {
 2801                Ok(path) => path,
 2802                Err(err) => {
 2803                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2804                        workspace.show_portal_error(err.to_string(), cx);
 2805
 2806                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2807                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2808                        workspace.on_prompt_for_new_path = Some(prompt);
 2809                        rx
 2810                    })?;
 2811                    if let Ok(path) = rx.await {
 2812                        tx.send(path).ok();
 2813                    }
 2814                    return anyhow::Ok(());
 2815                }
 2816            };
 2817
 2818            tx.send(abs_path.map(|path| vec![path])).ok();
 2819            anyhow::Ok(())
 2820        })
 2821        .detach();
 2822
 2823        rx
 2824    }
 2825
 2826    pub fn titlebar_item(&self) -> Option<AnyView> {
 2827        self.titlebar_item.clone()
 2828    }
 2829
 2830    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2831    /// When set, git-related operations should use this worktree instead of deriving
 2832    /// the active worktree from the focused file.
 2833    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2834        self.active_worktree_override
 2835    }
 2836
 2837    pub fn set_active_worktree_override(
 2838        &mut self,
 2839        worktree_id: Option<WorktreeId>,
 2840        cx: &mut Context<Self>,
 2841    ) {
 2842        self.active_worktree_override = worktree_id;
 2843        cx.notify();
 2844    }
 2845
 2846    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2847        self.active_worktree_override = None;
 2848        cx.notify();
 2849    }
 2850
 2851    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2852    ///
 2853    /// If the given workspace has a local project, then it will be passed
 2854    /// to the callback. Otherwise, a new empty window will be created.
 2855    pub fn with_local_workspace<T, F>(
 2856        &mut self,
 2857        window: &mut Window,
 2858        cx: &mut Context<Self>,
 2859        callback: F,
 2860    ) -> Task<Result<T>>
 2861    where
 2862        T: 'static,
 2863        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2864    {
 2865        if self.project.read(cx).is_local() {
 2866            Task::ready(Ok(callback(self, window, cx)))
 2867        } else {
 2868            let env = self.project.read(cx).cli_environment(cx);
 2869            let task = Self::new_local(
 2870                Vec::new(),
 2871                self.app_state.clone(),
 2872                None,
 2873                env,
 2874                None,
 2875                true,
 2876                cx,
 2877            );
 2878            cx.spawn_in(window, async move |_vh, cx| {
 2879                let OpenResult {
 2880                    window: multi_workspace_window,
 2881                    ..
 2882                } = task.await?;
 2883                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2884                    let workspace = multi_workspace.workspace().clone();
 2885                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2886                })
 2887            })
 2888        }
 2889    }
 2890
 2891    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2892    ///
 2893    /// If the given workspace has a local project, then it will be passed
 2894    /// to the callback. Otherwise, a new empty window will be created.
 2895    pub fn with_local_or_wsl_workspace<T, F>(
 2896        &mut self,
 2897        window: &mut Window,
 2898        cx: &mut Context<Self>,
 2899        callback: F,
 2900    ) -> Task<Result<T>>
 2901    where
 2902        T: 'static,
 2903        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2904    {
 2905        let project = self.project.read(cx);
 2906        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2907            Task::ready(Ok(callback(self, window, cx)))
 2908        } else {
 2909            let env = self.project.read(cx).cli_environment(cx);
 2910            let task = Self::new_local(
 2911                Vec::new(),
 2912                self.app_state.clone(),
 2913                None,
 2914                env,
 2915                None,
 2916                true,
 2917                cx,
 2918            );
 2919            cx.spawn_in(window, async move |_vh, cx| {
 2920                let OpenResult {
 2921                    window: multi_workspace_window,
 2922                    ..
 2923                } = task.await?;
 2924                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2925                    let workspace = multi_workspace.workspace().clone();
 2926                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2927                })
 2928            })
 2929        }
 2930    }
 2931
 2932    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2933        self.project.read(cx).worktrees(cx)
 2934    }
 2935
 2936    pub fn visible_worktrees<'a>(
 2937        &self,
 2938        cx: &'a App,
 2939    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2940        self.project.read(cx).visible_worktrees(cx)
 2941    }
 2942
 2943    #[cfg(any(test, feature = "test-support"))]
 2944    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2945        let futures = self
 2946            .worktrees(cx)
 2947            .filter_map(|worktree| worktree.read(cx).as_local())
 2948            .map(|worktree| worktree.scan_complete())
 2949            .collect::<Vec<_>>();
 2950        async move {
 2951            for future in futures {
 2952                future.await;
 2953            }
 2954        }
 2955    }
 2956
 2957    pub fn close_global(cx: &mut App) {
 2958        cx.defer(|cx| {
 2959            cx.windows().iter().find(|window| {
 2960                window
 2961                    .update(cx, |_, window, _| {
 2962                        if window.is_window_active() {
 2963                            //This can only get called when the window's project connection has been lost
 2964                            //so we don't need to prompt the user for anything and instead just close the window
 2965                            window.remove_window();
 2966                            true
 2967                        } else {
 2968                            false
 2969                        }
 2970                    })
 2971                    .unwrap_or(false)
 2972            });
 2973        });
 2974    }
 2975
 2976    pub fn move_focused_panel_to_next_position(
 2977        &mut self,
 2978        _: &MoveFocusedPanelToNextPosition,
 2979        window: &mut Window,
 2980        cx: &mut Context<Self>,
 2981    ) {
 2982        let docks = self.all_docks();
 2983        let active_dock = docks
 2984            .into_iter()
 2985            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2986
 2987        if let Some(dock) = active_dock {
 2988            dock.update(cx, |dock, cx| {
 2989                let active_panel = dock
 2990                    .active_panel()
 2991                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2992
 2993                if let Some(panel) = active_panel {
 2994                    panel.move_to_next_position(window, cx);
 2995                }
 2996            })
 2997        }
 2998    }
 2999
 3000    pub fn prepare_to_close(
 3001        &mut self,
 3002        close_intent: CloseIntent,
 3003        window: &mut Window,
 3004        cx: &mut Context<Self>,
 3005    ) -> Task<Result<bool>> {
 3006        let active_call = self.active_global_call();
 3007
 3008        cx.spawn_in(window, async move |this, cx| {
 3009            this.update(cx, |this, _| {
 3010                if close_intent == CloseIntent::CloseWindow {
 3011                    this.removing = true;
 3012                }
 3013            })?;
 3014
 3015            let workspace_count = cx.update(|_window, cx| {
 3016                cx.windows()
 3017                    .iter()
 3018                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3019                    .count()
 3020            })?;
 3021
 3022            #[cfg(target_os = "macos")]
 3023            let save_last_workspace = false;
 3024
 3025            // On Linux and Windows, closing the last window should restore the last workspace.
 3026            #[cfg(not(target_os = "macos"))]
 3027            let save_last_workspace = {
 3028                let remaining_workspaces = cx.update(|_window, cx| {
 3029                    cx.windows()
 3030                        .iter()
 3031                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3032                        .filter_map(|multi_workspace| {
 3033                            multi_workspace
 3034                                .update(cx, |multi_workspace, _, cx| {
 3035                                    multi_workspace.workspace().read(cx).removing
 3036                                })
 3037                                .ok()
 3038                        })
 3039                        .filter(|removing| !removing)
 3040                        .count()
 3041                })?;
 3042
 3043                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3044            };
 3045
 3046            if let Some(active_call) = active_call
 3047                && workspace_count == 1
 3048                && cx
 3049                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3050                    .unwrap_or(false)
 3051            {
 3052                if close_intent == CloseIntent::CloseWindow {
 3053                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3054                    let answer = cx.update(|window, cx| {
 3055                        window.prompt(
 3056                            PromptLevel::Warning,
 3057                            "Do you want to leave the current call?",
 3058                            None,
 3059                            &["Close window and hang up", "Cancel"],
 3060                            cx,
 3061                        )
 3062                    })?;
 3063
 3064                    if answer.await.log_err() == Some(1) {
 3065                        return anyhow::Ok(false);
 3066                    } else {
 3067                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3068                            task.await.log_err();
 3069                        }
 3070                    }
 3071                }
 3072                if close_intent == CloseIntent::ReplaceWindow {
 3073                    _ = cx.update(|_window, cx| {
 3074                        let multi_workspace = cx
 3075                            .windows()
 3076                            .iter()
 3077                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3078                            .next()
 3079                            .unwrap();
 3080                        let project = multi_workspace
 3081                            .read(cx)?
 3082                            .workspace()
 3083                            .read(cx)
 3084                            .project
 3085                            .clone();
 3086                        if project.read(cx).is_shared() {
 3087                            active_call.0.unshare_project(project, cx)?;
 3088                        }
 3089                        Ok::<_, anyhow::Error>(())
 3090                    });
 3091                }
 3092            }
 3093
 3094            let save_result = this
 3095                .update_in(cx, |this, window, cx| {
 3096                    this.save_all_internal(SaveIntent::Close, window, cx)
 3097                })?
 3098                .await;
 3099
 3100            // If we're not quitting, but closing, we remove the workspace from
 3101            // the current session.
 3102            if close_intent != CloseIntent::Quit
 3103                && !save_last_workspace
 3104                && save_result.as_ref().is_ok_and(|&res| res)
 3105            {
 3106                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3107                    .await;
 3108            }
 3109
 3110            save_result
 3111        })
 3112    }
 3113
 3114    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3115        self.save_all_internal(
 3116            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3117            window,
 3118            cx,
 3119        )
 3120        .detach_and_log_err(cx);
 3121    }
 3122
 3123    fn send_keystrokes(
 3124        &mut self,
 3125        action: &SendKeystrokes,
 3126        window: &mut Window,
 3127        cx: &mut Context<Self>,
 3128    ) {
 3129        let keystrokes: Vec<Keystroke> = action
 3130            .0
 3131            .split(' ')
 3132            .flat_map(|k| Keystroke::parse(k).log_err())
 3133            .map(|k| {
 3134                cx.keyboard_mapper()
 3135                    .map_key_equivalent(k, false)
 3136                    .inner()
 3137                    .clone()
 3138            })
 3139            .collect();
 3140        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3141    }
 3142
 3143    pub fn send_keystrokes_impl(
 3144        &mut self,
 3145        keystrokes: Vec<Keystroke>,
 3146        window: &mut Window,
 3147        cx: &mut Context<Self>,
 3148    ) -> Shared<Task<()>> {
 3149        let mut state = self.dispatching_keystrokes.borrow_mut();
 3150        if !state.dispatched.insert(keystrokes.clone()) {
 3151            cx.propagate();
 3152            return state.task.clone().unwrap();
 3153        }
 3154
 3155        state.queue.extend(keystrokes);
 3156
 3157        let keystrokes = self.dispatching_keystrokes.clone();
 3158        if state.task.is_none() {
 3159            state.task = Some(
 3160                window
 3161                    .spawn(cx, async move |cx| {
 3162                        // limit to 100 keystrokes to avoid infinite recursion.
 3163                        for _ in 0..100 {
 3164                            let keystroke = {
 3165                                let mut state = keystrokes.borrow_mut();
 3166                                let Some(keystroke) = state.queue.pop_front() else {
 3167                                    state.dispatched.clear();
 3168                                    state.task.take();
 3169                                    return;
 3170                                };
 3171                                keystroke
 3172                            };
 3173                            cx.update(|window, cx| {
 3174                                let focused = window.focused(cx);
 3175                                window.dispatch_keystroke(keystroke.clone(), cx);
 3176                                if window.focused(cx) != focused {
 3177                                    // dispatch_keystroke may cause the focus to change.
 3178                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3179                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3180                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3181                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3182                                    // )
 3183                                    window.draw(cx).clear();
 3184                                }
 3185                            })
 3186                            .ok();
 3187
 3188                            // Yield between synthetic keystrokes so deferred focus and
 3189                            // other effects can settle before dispatching the next key.
 3190                            yield_now().await;
 3191                        }
 3192
 3193                        *keystrokes.borrow_mut() = Default::default();
 3194                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3195                    })
 3196                    .shared(),
 3197            );
 3198        }
 3199        state.task.clone().unwrap()
 3200    }
 3201
 3202    fn save_all_internal(
 3203        &mut self,
 3204        mut save_intent: SaveIntent,
 3205        window: &mut Window,
 3206        cx: &mut Context<Self>,
 3207    ) -> Task<Result<bool>> {
 3208        if self.project.read(cx).is_disconnected(cx) {
 3209            return Task::ready(Ok(true));
 3210        }
 3211        let dirty_items = self
 3212            .panes
 3213            .iter()
 3214            .flat_map(|pane| {
 3215                pane.read(cx).items().filter_map(|item| {
 3216                    if item.is_dirty(cx) {
 3217                        item.tab_content_text(0, cx);
 3218                        Some((pane.downgrade(), item.boxed_clone()))
 3219                    } else {
 3220                        None
 3221                    }
 3222                })
 3223            })
 3224            .collect::<Vec<_>>();
 3225
 3226        let project = self.project.clone();
 3227        cx.spawn_in(window, async move |workspace, cx| {
 3228            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3229                let (serialize_tasks, remaining_dirty_items) =
 3230                    workspace.update_in(cx, |workspace, window, cx| {
 3231                        let mut remaining_dirty_items = Vec::new();
 3232                        let mut serialize_tasks = Vec::new();
 3233                        for (pane, item) in dirty_items {
 3234                            if let Some(task) = item
 3235                                .to_serializable_item_handle(cx)
 3236                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3237                            {
 3238                                serialize_tasks.push(task);
 3239                            } else {
 3240                                remaining_dirty_items.push((pane, item));
 3241                            }
 3242                        }
 3243                        (serialize_tasks, remaining_dirty_items)
 3244                    })?;
 3245
 3246                futures::future::try_join_all(serialize_tasks).await?;
 3247
 3248                if !remaining_dirty_items.is_empty() {
 3249                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3250                }
 3251
 3252                if remaining_dirty_items.len() > 1 {
 3253                    let answer = workspace.update_in(cx, |_, window, cx| {
 3254                        let detail = Pane::file_names_for_prompt(
 3255                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3256                            cx,
 3257                        );
 3258                        window.prompt(
 3259                            PromptLevel::Warning,
 3260                            "Do you want to save all changes in the following files?",
 3261                            Some(&detail),
 3262                            &["Save all", "Discard all", "Cancel"],
 3263                            cx,
 3264                        )
 3265                    })?;
 3266                    match answer.await.log_err() {
 3267                        Some(0) => save_intent = SaveIntent::SaveAll,
 3268                        Some(1) => save_intent = SaveIntent::Skip,
 3269                        Some(2) => return Ok(false),
 3270                        _ => {}
 3271                    }
 3272                }
 3273
 3274                remaining_dirty_items
 3275            } else {
 3276                dirty_items
 3277            };
 3278
 3279            for (pane, item) in dirty_items {
 3280                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3281                    (
 3282                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3283                        item.project_entry_ids(cx),
 3284                    )
 3285                })?;
 3286                if (singleton || !project_entry_ids.is_empty())
 3287                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3288                {
 3289                    return Ok(false);
 3290                }
 3291            }
 3292            Ok(true)
 3293        })
 3294    }
 3295
 3296    pub fn open_workspace_for_paths(
 3297        &mut self,
 3298        replace_current_window: bool,
 3299        paths: Vec<PathBuf>,
 3300        window: &mut Window,
 3301        cx: &mut Context<Self>,
 3302    ) -> Task<Result<Entity<Workspace>>> {
 3303        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 3304        let is_remote = self.project.read(cx).is_via_collab();
 3305        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3306        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3307
 3308        let window_to_replace = if replace_current_window {
 3309            window_handle
 3310        } else if is_remote || has_worktree || has_dirty_items {
 3311            None
 3312        } else {
 3313            window_handle
 3314        };
 3315        let app_state = self.app_state.clone();
 3316
 3317        cx.spawn(async move |_, cx| {
 3318            let OpenResult { workspace, .. } = cx
 3319                .update(|cx| {
 3320                    open_paths(
 3321                        &paths,
 3322                        app_state,
 3323                        OpenOptions {
 3324                            replace_window: window_to_replace,
 3325                            ..Default::default()
 3326                        },
 3327                        cx,
 3328                    )
 3329                })
 3330                .await?;
 3331            Ok(workspace)
 3332        })
 3333    }
 3334
 3335    #[allow(clippy::type_complexity)]
 3336    pub fn open_paths(
 3337        &mut self,
 3338        mut abs_paths: Vec<PathBuf>,
 3339        options: OpenOptions,
 3340        pane: Option<WeakEntity<Pane>>,
 3341        window: &mut Window,
 3342        cx: &mut Context<Self>,
 3343    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3344        let fs = self.app_state.fs.clone();
 3345
 3346        let caller_ordered_abs_paths = abs_paths.clone();
 3347
 3348        // Sort the paths to ensure we add worktrees for parents before their children.
 3349        abs_paths.sort_unstable();
 3350        cx.spawn_in(window, async move |this, cx| {
 3351            let mut tasks = Vec::with_capacity(abs_paths.len());
 3352
 3353            for abs_path in &abs_paths {
 3354                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3355                    OpenVisible::All => Some(true),
 3356                    OpenVisible::None => Some(false),
 3357                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3358                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3359                        Some(None) => Some(true),
 3360                        None => None,
 3361                    },
 3362                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3363                        Some(Some(metadata)) => Some(metadata.is_dir),
 3364                        Some(None) => Some(false),
 3365                        None => None,
 3366                    },
 3367                };
 3368                let project_path = match visible {
 3369                    Some(visible) => match this
 3370                        .update(cx, |this, cx| {
 3371                            Workspace::project_path_for_path(
 3372                                this.project.clone(),
 3373                                abs_path,
 3374                                visible,
 3375                                cx,
 3376                            )
 3377                        })
 3378                        .log_err()
 3379                    {
 3380                        Some(project_path) => project_path.await.log_err(),
 3381                        None => None,
 3382                    },
 3383                    None => None,
 3384                };
 3385
 3386                let this = this.clone();
 3387                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3388                let fs = fs.clone();
 3389                let pane = pane.clone();
 3390                let task = cx.spawn(async move |cx| {
 3391                    let (_worktree, project_path) = project_path?;
 3392                    if fs.is_dir(&abs_path).await {
 3393                        // Opening a directory should not race to update the active entry.
 3394                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3395                        None
 3396                    } else {
 3397                        Some(
 3398                            this.update_in(cx, |this, window, cx| {
 3399                                this.open_path(
 3400                                    project_path,
 3401                                    pane,
 3402                                    options.focus.unwrap_or(true),
 3403                                    window,
 3404                                    cx,
 3405                                )
 3406                            })
 3407                            .ok()?
 3408                            .await,
 3409                        )
 3410                    }
 3411                });
 3412                tasks.push(task);
 3413            }
 3414
 3415            let results = futures::future::join_all(tasks).await;
 3416
 3417            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3418            let mut winner: Option<(PathBuf, bool)> = None;
 3419            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3420                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3421                    if !metadata.is_dir {
 3422                        winner = Some((abs_path, false));
 3423                        break;
 3424                    }
 3425                    if winner.is_none() {
 3426                        winner = Some((abs_path, true));
 3427                    }
 3428                } else if winner.is_none() {
 3429                    winner = Some((abs_path, false));
 3430                }
 3431            }
 3432
 3433            // Compute the winner entry id on the foreground thread and emit once, after all
 3434            // paths finish opening. This avoids races between concurrently-opening paths
 3435            // (directories in particular) and makes the resulting project panel selection
 3436            // deterministic.
 3437            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3438                'emit_winner: {
 3439                    let winner_abs_path: Arc<Path> =
 3440                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3441
 3442                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3443                        OpenVisible::All => true,
 3444                        OpenVisible::None => false,
 3445                        OpenVisible::OnlyFiles => !winner_is_dir,
 3446                        OpenVisible::OnlyDirectories => winner_is_dir,
 3447                    };
 3448
 3449                    let Some(worktree_task) = this
 3450                        .update(cx, |workspace, cx| {
 3451                            workspace.project.update(cx, |project, cx| {
 3452                                project.find_or_create_worktree(
 3453                                    winner_abs_path.as_ref(),
 3454                                    visible,
 3455                                    cx,
 3456                                )
 3457                            })
 3458                        })
 3459                        .ok()
 3460                    else {
 3461                        break 'emit_winner;
 3462                    };
 3463
 3464                    let Ok((worktree, _)) = worktree_task.await else {
 3465                        break 'emit_winner;
 3466                    };
 3467
 3468                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3469                        let worktree = worktree.read(cx);
 3470                        let worktree_abs_path = worktree.abs_path();
 3471                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3472                            worktree.root_entry()
 3473                        } else {
 3474                            winner_abs_path
 3475                                .strip_prefix(worktree_abs_path.as_ref())
 3476                                .ok()
 3477                                .and_then(|relative_path| {
 3478                                    let relative_path =
 3479                                        RelPath::new(relative_path, PathStyle::local())
 3480                                            .log_err()?;
 3481                                    worktree.entry_for_path(&relative_path)
 3482                                })
 3483                        }?;
 3484                        Some(entry.id)
 3485                    }) else {
 3486                        break 'emit_winner;
 3487                    };
 3488
 3489                    this.update(cx, |workspace, cx| {
 3490                        workspace.project.update(cx, |_, cx| {
 3491                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3492                        });
 3493                    })
 3494                    .ok();
 3495                }
 3496            }
 3497
 3498            results
 3499        })
 3500    }
 3501
 3502    pub fn open_resolved_path(
 3503        &mut self,
 3504        path: ResolvedPath,
 3505        window: &mut Window,
 3506        cx: &mut Context<Self>,
 3507    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3508        match path {
 3509            ResolvedPath::ProjectPath { project_path, .. } => {
 3510                self.open_path(project_path, None, true, window, cx)
 3511            }
 3512            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3513                PathBuf::from(path),
 3514                OpenOptions {
 3515                    visible: Some(OpenVisible::None),
 3516                    ..Default::default()
 3517                },
 3518                window,
 3519                cx,
 3520            ),
 3521        }
 3522    }
 3523
 3524    pub fn absolute_path_of_worktree(
 3525        &self,
 3526        worktree_id: WorktreeId,
 3527        cx: &mut Context<Self>,
 3528    ) -> Option<PathBuf> {
 3529        self.project
 3530            .read(cx)
 3531            .worktree_for_id(worktree_id, cx)
 3532            // TODO: use `abs_path` or `root_dir`
 3533            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3534    }
 3535
 3536    pub fn add_folder_to_project(
 3537        &mut self,
 3538        _: &AddFolderToProject,
 3539        window: &mut Window,
 3540        cx: &mut Context<Self>,
 3541    ) {
 3542        let project = self.project.read(cx);
 3543        if project.is_via_collab() {
 3544            self.show_error(
 3545                &anyhow!("You cannot add folders to someone else's project"),
 3546                cx,
 3547            );
 3548            return;
 3549        }
 3550        let paths = self.prompt_for_open_path(
 3551            PathPromptOptions {
 3552                files: false,
 3553                directories: true,
 3554                multiple: true,
 3555                prompt: None,
 3556            },
 3557            DirectoryLister::Project(self.project.clone()),
 3558            window,
 3559            cx,
 3560        );
 3561        cx.spawn_in(window, async move |this, cx| {
 3562            if let Some(paths) = paths.await.log_err().flatten() {
 3563                let results = this
 3564                    .update_in(cx, |this, window, cx| {
 3565                        this.open_paths(
 3566                            paths,
 3567                            OpenOptions {
 3568                                visible: Some(OpenVisible::All),
 3569                                ..Default::default()
 3570                            },
 3571                            None,
 3572                            window,
 3573                            cx,
 3574                        )
 3575                    })?
 3576                    .await;
 3577                for result in results.into_iter().flatten() {
 3578                    result.log_err();
 3579                }
 3580            }
 3581            anyhow::Ok(())
 3582        })
 3583        .detach_and_log_err(cx);
 3584    }
 3585
 3586    pub fn project_path_for_path(
 3587        project: Entity<Project>,
 3588        abs_path: &Path,
 3589        visible: bool,
 3590        cx: &mut App,
 3591    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3592        let entry = project.update(cx, |project, cx| {
 3593            project.find_or_create_worktree(abs_path, visible, cx)
 3594        });
 3595        cx.spawn(async move |cx| {
 3596            let (worktree, path) = entry.await?;
 3597            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3598            Ok((worktree, ProjectPath { worktree_id, path }))
 3599        })
 3600    }
 3601
 3602    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3603        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3604    }
 3605
 3606    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3607        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3608    }
 3609
 3610    pub fn items_of_type<'a, T: Item>(
 3611        &'a self,
 3612        cx: &'a App,
 3613    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3614        self.panes
 3615            .iter()
 3616            .flat_map(|pane| pane.read(cx).items_of_type())
 3617    }
 3618
 3619    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3620        self.active_pane().read(cx).active_item()
 3621    }
 3622
 3623    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3624        let item = self.active_item(cx)?;
 3625        item.to_any_view().downcast::<I>().ok()
 3626    }
 3627
 3628    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3629        self.active_item(cx).and_then(|item| item.project_path(cx))
 3630    }
 3631
 3632    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3633        self.recent_navigation_history_iter(cx)
 3634            .filter_map(|(path, abs_path)| {
 3635                let worktree = self
 3636                    .project
 3637                    .read(cx)
 3638                    .worktree_for_id(path.worktree_id, cx)?;
 3639                if worktree.read(cx).is_visible() {
 3640                    abs_path
 3641                } else {
 3642                    None
 3643                }
 3644            })
 3645            .next()
 3646    }
 3647
 3648    pub fn save_active_item(
 3649        &mut self,
 3650        save_intent: SaveIntent,
 3651        window: &mut Window,
 3652        cx: &mut App,
 3653    ) -> Task<Result<()>> {
 3654        let project = self.project.clone();
 3655        let pane = self.active_pane();
 3656        let item = pane.read(cx).active_item();
 3657        let pane = pane.downgrade();
 3658
 3659        window.spawn(cx, async move |cx| {
 3660            if let Some(item) = item {
 3661                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3662                    .await
 3663                    .map(|_| ())
 3664            } else {
 3665                Ok(())
 3666            }
 3667        })
 3668    }
 3669
 3670    pub fn close_inactive_items_and_panes(
 3671        &mut self,
 3672        action: &CloseInactiveTabsAndPanes,
 3673        window: &mut Window,
 3674        cx: &mut Context<Self>,
 3675    ) {
 3676        if let Some(task) = self.close_all_internal(
 3677            true,
 3678            action.save_intent.unwrap_or(SaveIntent::Close),
 3679            window,
 3680            cx,
 3681        ) {
 3682            task.detach_and_log_err(cx)
 3683        }
 3684    }
 3685
 3686    pub fn close_all_items_and_panes(
 3687        &mut self,
 3688        action: &CloseAllItemsAndPanes,
 3689        window: &mut Window,
 3690        cx: &mut Context<Self>,
 3691    ) {
 3692        if let Some(task) = self.close_all_internal(
 3693            false,
 3694            action.save_intent.unwrap_or(SaveIntent::Close),
 3695            window,
 3696            cx,
 3697        ) {
 3698            task.detach_and_log_err(cx)
 3699        }
 3700    }
 3701
 3702    /// Closes the active item across all panes.
 3703    pub fn close_item_in_all_panes(
 3704        &mut self,
 3705        action: &CloseItemInAllPanes,
 3706        window: &mut Window,
 3707        cx: &mut Context<Self>,
 3708    ) {
 3709        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3710            return;
 3711        };
 3712
 3713        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3714        let close_pinned = action.close_pinned;
 3715
 3716        if let Some(project_path) = active_item.project_path(cx) {
 3717            self.close_items_with_project_path(
 3718                &project_path,
 3719                save_intent,
 3720                close_pinned,
 3721                window,
 3722                cx,
 3723            );
 3724        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3725            let item_id = active_item.item_id();
 3726            self.active_pane().update(cx, |pane, cx| {
 3727                pane.close_item_by_id(item_id, save_intent, window, cx)
 3728                    .detach_and_log_err(cx);
 3729            });
 3730        }
 3731    }
 3732
 3733    /// Closes all items with the given project path across all panes.
 3734    pub fn close_items_with_project_path(
 3735        &mut self,
 3736        project_path: &ProjectPath,
 3737        save_intent: SaveIntent,
 3738        close_pinned: bool,
 3739        window: &mut Window,
 3740        cx: &mut Context<Self>,
 3741    ) {
 3742        let panes = self.panes().to_vec();
 3743        for pane in panes {
 3744            pane.update(cx, |pane, cx| {
 3745                pane.close_items_for_project_path(
 3746                    project_path,
 3747                    save_intent,
 3748                    close_pinned,
 3749                    window,
 3750                    cx,
 3751                )
 3752                .detach_and_log_err(cx);
 3753            });
 3754        }
 3755    }
 3756
 3757    fn close_all_internal(
 3758        &mut self,
 3759        retain_active_pane: bool,
 3760        save_intent: SaveIntent,
 3761        window: &mut Window,
 3762        cx: &mut Context<Self>,
 3763    ) -> Option<Task<Result<()>>> {
 3764        let current_pane = self.active_pane();
 3765
 3766        let mut tasks = Vec::new();
 3767
 3768        if retain_active_pane {
 3769            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3770                pane.close_other_items(
 3771                    &CloseOtherItems {
 3772                        save_intent: None,
 3773                        close_pinned: false,
 3774                    },
 3775                    None,
 3776                    window,
 3777                    cx,
 3778                )
 3779            });
 3780
 3781            tasks.push(current_pane_close);
 3782        }
 3783
 3784        for pane in self.panes() {
 3785            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3786                continue;
 3787            }
 3788
 3789            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3790                pane.close_all_items(
 3791                    &CloseAllItems {
 3792                        save_intent: Some(save_intent),
 3793                        close_pinned: false,
 3794                    },
 3795                    window,
 3796                    cx,
 3797                )
 3798            });
 3799
 3800            tasks.push(close_pane_items)
 3801        }
 3802
 3803        if tasks.is_empty() {
 3804            None
 3805        } else {
 3806            Some(cx.spawn_in(window, async move |_, _| {
 3807                for task in tasks {
 3808                    task.await?
 3809                }
 3810                Ok(())
 3811            }))
 3812        }
 3813    }
 3814
 3815    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3816        self.dock_at_position(position).read(cx).is_open()
 3817    }
 3818
 3819    pub fn toggle_dock(
 3820        &mut self,
 3821        dock_side: DockPosition,
 3822        window: &mut Window,
 3823        cx: &mut Context<Self>,
 3824    ) {
 3825        let mut focus_center = false;
 3826        let mut reveal_dock = false;
 3827
 3828        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3829        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3830
 3831        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3832            telemetry::event!(
 3833                "Panel Button Clicked",
 3834                name = panel.persistent_name(),
 3835                toggle_state = !was_visible
 3836            );
 3837        }
 3838        if was_visible {
 3839            self.save_open_dock_positions(cx);
 3840        }
 3841
 3842        let dock = self.dock_at_position(dock_side);
 3843        dock.update(cx, |dock, cx| {
 3844            dock.set_open(!was_visible, window, cx);
 3845
 3846            if dock.active_panel().is_none() {
 3847                let Some(panel_ix) = dock
 3848                    .first_enabled_panel_idx(cx)
 3849                    .log_with_level(log::Level::Info)
 3850                else {
 3851                    return;
 3852                };
 3853                dock.activate_panel(panel_ix, window, cx);
 3854            }
 3855
 3856            if let Some(active_panel) = dock.active_panel() {
 3857                if was_visible {
 3858                    if active_panel
 3859                        .panel_focus_handle(cx)
 3860                        .contains_focused(window, cx)
 3861                    {
 3862                        focus_center = true;
 3863                    }
 3864                } else {
 3865                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3866                    window.focus(focus_handle, cx);
 3867                    reveal_dock = true;
 3868                }
 3869            }
 3870        });
 3871
 3872        if reveal_dock {
 3873            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3874        }
 3875
 3876        if focus_center {
 3877            self.active_pane
 3878                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3879        }
 3880
 3881        cx.notify();
 3882        self.serialize_workspace(window, cx);
 3883    }
 3884
 3885    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3886        self.all_docks().into_iter().find(|&dock| {
 3887            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3888        })
 3889    }
 3890
 3891    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3892        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3893            self.save_open_dock_positions(cx);
 3894            dock.update(cx, |dock, cx| {
 3895                dock.set_open(false, window, cx);
 3896            });
 3897            return true;
 3898        }
 3899        false
 3900    }
 3901
 3902    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3903        self.save_open_dock_positions(cx);
 3904        for dock in self.all_docks() {
 3905            dock.update(cx, |dock, cx| {
 3906                dock.set_open(false, window, cx);
 3907            });
 3908        }
 3909
 3910        cx.focus_self(window);
 3911        cx.notify();
 3912        self.serialize_workspace(window, cx);
 3913    }
 3914
 3915    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3916        self.all_docks()
 3917            .into_iter()
 3918            .filter_map(|dock| {
 3919                let dock_ref = dock.read(cx);
 3920                if dock_ref.is_open() {
 3921                    Some(dock_ref.position())
 3922                } else {
 3923                    None
 3924                }
 3925            })
 3926            .collect()
 3927    }
 3928
 3929    /// Saves the positions of currently open docks.
 3930    ///
 3931    /// Updates `last_open_dock_positions` with positions of all currently open
 3932    /// docks, to later be restored by the 'Toggle All Docks' action.
 3933    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3934        let open_dock_positions = self.get_open_dock_positions(cx);
 3935        if !open_dock_positions.is_empty() {
 3936            self.last_open_dock_positions = open_dock_positions;
 3937        }
 3938    }
 3939
 3940    /// Toggles all docks between open and closed states.
 3941    ///
 3942    /// If any docks are open, closes all and remembers their positions. If all
 3943    /// docks are closed, restores the last remembered dock configuration.
 3944    fn toggle_all_docks(
 3945        &mut self,
 3946        _: &ToggleAllDocks,
 3947        window: &mut Window,
 3948        cx: &mut Context<Self>,
 3949    ) {
 3950        let open_dock_positions = self.get_open_dock_positions(cx);
 3951
 3952        if !open_dock_positions.is_empty() {
 3953            self.close_all_docks(window, cx);
 3954        } else if !self.last_open_dock_positions.is_empty() {
 3955            self.restore_last_open_docks(window, cx);
 3956        }
 3957    }
 3958
 3959    /// Reopens docks from the most recently remembered configuration.
 3960    ///
 3961    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3962    /// and clears the stored positions.
 3963    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3964        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3965
 3966        for position in positions_to_open {
 3967            let dock = self.dock_at_position(position);
 3968            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3969        }
 3970
 3971        cx.focus_self(window);
 3972        cx.notify();
 3973        self.serialize_workspace(window, cx);
 3974    }
 3975
 3976    /// Transfer focus to the panel of the given type.
 3977    pub fn focus_panel<T: Panel>(
 3978        &mut self,
 3979        window: &mut Window,
 3980        cx: &mut Context<Self>,
 3981    ) -> Option<Entity<T>> {
 3982        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 3983        panel.to_any().downcast().ok()
 3984    }
 3985
 3986    /// Focus the panel of the given type if it isn't already focused. If it is
 3987    /// already focused, then transfer focus back to the workspace center.
 3988    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 3989    /// panel when transferring focus back to the center.
 3990    pub fn toggle_panel_focus<T: Panel>(
 3991        &mut self,
 3992        window: &mut Window,
 3993        cx: &mut Context<Self>,
 3994    ) -> bool {
 3995        let mut did_focus_panel = false;
 3996        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 3997            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3998            did_focus_panel
 3999        });
 4000
 4001        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4002            self.close_panel::<T>(window, cx);
 4003        }
 4004
 4005        telemetry::event!(
 4006            "Panel Button Clicked",
 4007            name = T::persistent_name(),
 4008            toggle_state = did_focus_panel
 4009        );
 4010
 4011        did_focus_panel
 4012    }
 4013
 4014    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4015        if let Some(item) = self.active_item(cx) {
 4016            item.item_focus_handle(cx).focus(window, cx);
 4017        } else {
 4018            log::error!("Could not find a focus target when switching focus to the center panes",);
 4019        }
 4020    }
 4021
 4022    pub fn activate_panel_for_proto_id(
 4023        &mut self,
 4024        panel_id: PanelId,
 4025        window: &mut Window,
 4026        cx: &mut Context<Self>,
 4027    ) -> Option<Arc<dyn PanelHandle>> {
 4028        let mut panel = None;
 4029        for dock in self.all_docks() {
 4030            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4031                panel = dock.update(cx, |dock, cx| {
 4032                    dock.activate_panel(panel_index, window, cx);
 4033                    dock.set_open(true, window, cx);
 4034                    dock.active_panel().cloned()
 4035                });
 4036                break;
 4037            }
 4038        }
 4039
 4040        if panel.is_some() {
 4041            cx.notify();
 4042            self.serialize_workspace(window, cx);
 4043        }
 4044
 4045        panel
 4046    }
 4047
 4048    /// Focus or unfocus the given panel type, depending on the given callback.
 4049    fn focus_or_unfocus_panel<T: Panel>(
 4050        &mut self,
 4051        window: &mut Window,
 4052        cx: &mut Context<Self>,
 4053        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4054    ) -> Option<Arc<dyn PanelHandle>> {
 4055        let mut result_panel = None;
 4056        let mut serialize = false;
 4057        for dock in self.all_docks() {
 4058            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4059                let mut focus_center = false;
 4060                let panel = dock.update(cx, |dock, cx| {
 4061                    dock.activate_panel(panel_index, window, cx);
 4062
 4063                    let panel = dock.active_panel().cloned();
 4064                    if let Some(panel) = panel.as_ref() {
 4065                        if should_focus(&**panel, window, cx) {
 4066                            dock.set_open(true, window, cx);
 4067                            panel.panel_focus_handle(cx).focus(window, cx);
 4068                        } else {
 4069                            focus_center = true;
 4070                        }
 4071                    }
 4072                    panel
 4073                });
 4074
 4075                if focus_center {
 4076                    self.active_pane
 4077                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4078                }
 4079
 4080                result_panel = panel;
 4081                serialize = true;
 4082                break;
 4083            }
 4084        }
 4085
 4086        if serialize {
 4087            self.serialize_workspace(window, cx);
 4088        }
 4089
 4090        cx.notify();
 4091        result_panel
 4092    }
 4093
 4094    /// Open the panel of the given type
 4095    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4096        for dock in self.all_docks() {
 4097            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4098                dock.update(cx, |dock, cx| {
 4099                    dock.activate_panel(panel_index, window, cx);
 4100                    dock.set_open(true, window, cx);
 4101                });
 4102            }
 4103        }
 4104    }
 4105
 4106    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4107        for dock in self.all_docks().iter() {
 4108            dock.update(cx, |dock, cx| {
 4109                if dock.panel::<T>().is_some() {
 4110                    dock.set_open(false, window, cx)
 4111                }
 4112            })
 4113        }
 4114    }
 4115
 4116    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4117        self.all_docks()
 4118            .iter()
 4119            .find_map(|dock| dock.read(cx).panel::<T>())
 4120    }
 4121
 4122    fn dismiss_zoomed_items_to_reveal(
 4123        &mut self,
 4124        dock_to_reveal: Option<DockPosition>,
 4125        window: &mut Window,
 4126        cx: &mut Context<Self>,
 4127    ) {
 4128        // If a center pane is zoomed, unzoom it.
 4129        for pane in &self.panes {
 4130            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4131                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4132            }
 4133        }
 4134
 4135        // If another dock is zoomed, hide it.
 4136        let mut focus_center = false;
 4137        for dock in self.all_docks() {
 4138            dock.update(cx, |dock, cx| {
 4139                if Some(dock.position()) != dock_to_reveal
 4140                    && let Some(panel) = dock.active_panel()
 4141                    && panel.is_zoomed(window, cx)
 4142                {
 4143                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4144                    dock.set_open(false, window, cx);
 4145                }
 4146            });
 4147        }
 4148
 4149        if focus_center {
 4150            self.active_pane
 4151                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4152        }
 4153
 4154        if self.zoomed_position != dock_to_reveal {
 4155            self.zoomed = None;
 4156            self.zoomed_position = None;
 4157            cx.emit(Event::ZoomChanged);
 4158        }
 4159
 4160        cx.notify();
 4161    }
 4162
 4163    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4164        let pane = cx.new(|cx| {
 4165            let mut pane = Pane::new(
 4166                self.weak_handle(),
 4167                self.project.clone(),
 4168                self.pane_history_timestamp.clone(),
 4169                None,
 4170                NewFile.boxed_clone(),
 4171                true,
 4172                window,
 4173                cx,
 4174            );
 4175            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4176            pane
 4177        });
 4178        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4179            .detach();
 4180        self.panes.push(pane.clone());
 4181
 4182        window.focus(&pane.focus_handle(cx), cx);
 4183
 4184        cx.emit(Event::PaneAdded(pane.clone()));
 4185        pane
 4186    }
 4187
 4188    pub fn add_item_to_center(
 4189        &mut self,
 4190        item: Box<dyn ItemHandle>,
 4191        window: &mut Window,
 4192        cx: &mut Context<Self>,
 4193    ) -> bool {
 4194        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4195            if let Some(center_pane) = center_pane.upgrade() {
 4196                center_pane.update(cx, |pane, cx| {
 4197                    pane.add_item(item, true, true, None, window, cx)
 4198                });
 4199                true
 4200            } else {
 4201                false
 4202            }
 4203        } else {
 4204            false
 4205        }
 4206    }
 4207
 4208    pub fn add_item_to_active_pane(
 4209        &mut self,
 4210        item: Box<dyn ItemHandle>,
 4211        destination_index: Option<usize>,
 4212        focus_item: bool,
 4213        window: &mut Window,
 4214        cx: &mut App,
 4215    ) {
 4216        self.add_item(
 4217            self.active_pane.clone(),
 4218            item,
 4219            destination_index,
 4220            false,
 4221            focus_item,
 4222            window,
 4223            cx,
 4224        )
 4225    }
 4226
 4227    pub fn add_item(
 4228        &mut self,
 4229        pane: Entity<Pane>,
 4230        item: Box<dyn ItemHandle>,
 4231        destination_index: Option<usize>,
 4232        activate_pane: bool,
 4233        focus_item: bool,
 4234        window: &mut Window,
 4235        cx: &mut App,
 4236    ) {
 4237        pane.update(cx, |pane, cx| {
 4238            pane.add_item(
 4239                item,
 4240                activate_pane,
 4241                focus_item,
 4242                destination_index,
 4243                window,
 4244                cx,
 4245            )
 4246        });
 4247    }
 4248
 4249    pub fn split_item(
 4250        &mut self,
 4251        split_direction: SplitDirection,
 4252        item: Box<dyn ItemHandle>,
 4253        window: &mut Window,
 4254        cx: &mut Context<Self>,
 4255    ) {
 4256        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4257        self.add_item(new_pane, item, None, true, true, window, cx);
 4258    }
 4259
 4260    pub fn open_abs_path(
 4261        &mut self,
 4262        abs_path: PathBuf,
 4263        options: OpenOptions,
 4264        window: &mut Window,
 4265        cx: &mut Context<Self>,
 4266    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4267        cx.spawn_in(window, async move |workspace, cx| {
 4268            let open_paths_task_result = workspace
 4269                .update_in(cx, |workspace, window, cx| {
 4270                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4271                })
 4272                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4273                .await;
 4274            anyhow::ensure!(
 4275                open_paths_task_result.len() == 1,
 4276                "open abs path {abs_path:?} task returned incorrect number of results"
 4277            );
 4278            match open_paths_task_result
 4279                .into_iter()
 4280                .next()
 4281                .expect("ensured single task result")
 4282            {
 4283                Some(open_result) => {
 4284                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4285                }
 4286                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4287            }
 4288        })
 4289    }
 4290
 4291    pub fn split_abs_path(
 4292        &mut self,
 4293        abs_path: PathBuf,
 4294        visible: bool,
 4295        window: &mut Window,
 4296        cx: &mut Context<Self>,
 4297    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4298        let project_path_task =
 4299            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4300        cx.spawn_in(window, async move |this, cx| {
 4301            let (_, path) = project_path_task.await?;
 4302            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4303                .await
 4304        })
 4305    }
 4306
 4307    pub fn open_path(
 4308        &mut self,
 4309        path: impl Into<ProjectPath>,
 4310        pane: Option<WeakEntity<Pane>>,
 4311        focus_item: bool,
 4312        window: &mut Window,
 4313        cx: &mut App,
 4314    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4315        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4316    }
 4317
 4318    pub fn open_path_preview(
 4319        &mut self,
 4320        path: impl Into<ProjectPath>,
 4321        pane: Option<WeakEntity<Pane>>,
 4322        focus_item: bool,
 4323        allow_preview: bool,
 4324        activate: bool,
 4325        window: &mut Window,
 4326        cx: &mut App,
 4327    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4328        let pane = pane.unwrap_or_else(|| {
 4329            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4330                self.panes
 4331                    .first()
 4332                    .expect("There must be an active pane")
 4333                    .downgrade()
 4334            })
 4335        });
 4336
 4337        let project_path = path.into();
 4338        let task = self.load_path(project_path.clone(), window, cx);
 4339        window.spawn(cx, async move |cx| {
 4340            let (project_entry_id, build_item) = task.await?;
 4341
 4342            pane.update_in(cx, |pane, window, cx| {
 4343                pane.open_item(
 4344                    project_entry_id,
 4345                    project_path,
 4346                    focus_item,
 4347                    allow_preview,
 4348                    activate,
 4349                    None,
 4350                    window,
 4351                    cx,
 4352                    build_item,
 4353                )
 4354            })
 4355        })
 4356    }
 4357
 4358    pub fn split_path(
 4359        &mut self,
 4360        path: impl Into<ProjectPath>,
 4361        window: &mut Window,
 4362        cx: &mut Context<Self>,
 4363    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4364        self.split_path_preview(path, false, None, window, cx)
 4365    }
 4366
 4367    pub fn split_path_preview(
 4368        &mut self,
 4369        path: impl Into<ProjectPath>,
 4370        allow_preview: bool,
 4371        split_direction: Option<SplitDirection>,
 4372        window: &mut Window,
 4373        cx: &mut Context<Self>,
 4374    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4375        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4376            self.panes
 4377                .first()
 4378                .expect("There must be an active pane")
 4379                .downgrade()
 4380        });
 4381
 4382        if let Member::Pane(center_pane) = &self.center.root
 4383            && center_pane.read(cx).items_len() == 0
 4384        {
 4385            return self.open_path(path, Some(pane), true, window, cx);
 4386        }
 4387
 4388        let project_path = path.into();
 4389        let task = self.load_path(project_path.clone(), window, cx);
 4390        cx.spawn_in(window, async move |this, cx| {
 4391            let (project_entry_id, build_item) = task.await?;
 4392            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4393                let pane = pane.upgrade()?;
 4394                let new_pane = this.split_pane(
 4395                    pane,
 4396                    split_direction.unwrap_or(SplitDirection::Right),
 4397                    window,
 4398                    cx,
 4399                );
 4400                new_pane.update(cx, |new_pane, cx| {
 4401                    Some(new_pane.open_item(
 4402                        project_entry_id,
 4403                        project_path,
 4404                        true,
 4405                        allow_preview,
 4406                        true,
 4407                        None,
 4408                        window,
 4409                        cx,
 4410                        build_item,
 4411                    ))
 4412                })
 4413            })
 4414            .map(|option| option.context("pane was dropped"))?
 4415        })
 4416    }
 4417
 4418    fn load_path(
 4419        &mut self,
 4420        path: ProjectPath,
 4421        window: &mut Window,
 4422        cx: &mut App,
 4423    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4424        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4425        registry.open_path(self.project(), &path, window, cx)
 4426    }
 4427
 4428    pub fn find_project_item<T>(
 4429        &self,
 4430        pane: &Entity<Pane>,
 4431        project_item: &Entity<T::Item>,
 4432        cx: &App,
 4433    ) -> Option<Entity<T>>
 4434    where
 4435        T: ProjectItem,
 4436    {
 4437        use project::ProjectItem as _;
 4438        let project_item = project_item.read(cx);
 4439        let entry_id = project_item.entry_id(cx);
 4440        let project_path = project_item.project_path(cx);
 4441
 4442        let mut item = None;
 4443        if let Some(entry_id) = entry_id {
 4444            item = pane.read(cx).item_for_entry(entry_id, cx);
 4445        }
 4446        if item.is_none()
 4447            && let Some(project_path) = project_path
 4448        {
 4449            item = pane.read(cx).item_for_path(project_path, cx);
 4450        }
 4451
 4452        item.and_then(|item| item.downcast::<T>())
 4453    }
 4454
 4455    pub fn is_project_item_open<T>(
 4456        &self,
 4457        pane: &Entity<Pane>,
 4458        project_item: &Entity<T::Item>,
 4459        cx: &App,
 4460    ) -> bool
 4461    where
 4462        T: ProjectItem,
 4463    {
 4464        self.find_project_item::<T>(pane, project_item, cx)
 4465            .is_some()
 4466    }
 4467
 4468    pub fn open_project_item<T>(
 4469        &mut self,
 4470        pane: Entity<Pane>,
 4471        project_item: Entity<T::Item>,
 4472        activate_pane: bool,
 4473        focus_item: bool,
 4474        keep_old_preview: bool,
 4475        allow_new_preview: bool,
 4476        window: &mut Window,
 4477        cx: &mut Context<Self>,
 4478    ) -> Entity<T>
 4479    where
 4480        T: ProjectItem,
 4481    {
 4482        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4483
 4484        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4485            if !keep_old_preview
 4486                && let Some(old_id) = old_item_id
 4487                && old_id != item.item_id()
 4488            {
 4489                // switching to a different item, so unpreview old active item
 4490                pane.update(cx, |pane, _| {
 4491                    pane.unpreview_item_if_preview(old_id);
 4492                });
 4493            }
 4494
 4495            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4496            if !allow_new_preview {
 4497                pane.update(cx, |pane, _| {
 4498                    pane.unpreview_item_if_preview(item.item_id());
 4499                });
 4500            }
 4501            return item;
 4502        }
 4503
 4504        let item = pane.update(cx, |pane, cx| {
 4505            cx.new(|cx| {
 4506                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4507            })
 4508        });
 4509        let mut destination_index = None;
 4510        pane.update(cx, |pane, cx| {
 4511            if !keep_old_preview && let Some(old_id) = old_item_id {
 4512                pane.unpreview_item_if_preview(old_id);
 4513            }
 4514            if allow_new_preview {
 4515                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4516            }
 4517        });
 4518
 4519        self.add_item(
 4520            pane,
 4521            Box::new(item.clone()),
 4522            destination_index,
 4523            activate_pane,
 4524            focus_item,
 4525            window,
 4526            cx,
 4527        );
 4528        item
 4529    }
 4530
 4531    pub fn open_shared_screen(
 4532        &mut self,
 4533        peer_id: PeerId,
 4534        window: &mut Window,
 4535        cx: &mut Context<Self>,
 4536    ) {
 4537        if let Some(shared_screen) =
 4538            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4539        {
 4540            self.active_pane.update(cx, |pane, cx| {
 4541                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4542            });
 4543        }
 4544    }
 4545
 4546    pub fn activate_item(
 4547        &mut self,
 4548        item: &dyn ItemHandle,
 4549        activate_pane: bool,
 4550        focus_item: bool,
 4551        window: &mut Window,
 4552        cx: &mut App,
 4553    ) -> bool {
 4554        let result = self.panes.iter().find_map(|pane| {
 4555            pane.read(cx)
 4556                .index_for_item(item)
 4557                .map(|ix| (pane.clone(), ix))
 4558        });
 4559        if let Some((pane, ix)) = result {
 4560            pane.update(cx, |pane, cx| {
 4561                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4562            });
 4563            true
 4564        } else {
 4565            false
 4566        }
 4567    }
 4568
 4569    fn activate_pane_at_index(
 4570        &mut self,
 4571        action: &ActivatePane,
 4572        window: &mut Window,
 4573        cx: &mut Context<Self>,
 4574    ) {
 4575        let panes = self.center.panes();
 4576        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4577            window.focus(&pane.focus_handle(cx), cx);
 4578        } else {
 4579            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4580                .detach();
 4581        }
 4582    }
 4583
 4584    fn move_item_to_pane_at_index(
 4585        &mut self,
 4586        action: &MoveItemToPane,
 4587        window: &mut Window,
 4588        cx: &mut Context<Self>,
 4589    ) {
 4590        let panes = self.center.panes();
 4591        let destination = match panes.get(action.destination) {
 4592            Some(&destination) => destination.clone(),
 4593            None => {
 4594                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4595                    return;
 4596                }
 4597                let direction = SplitDirection::Right;
 4598                let split_off_pane = self
 4599                    .find_pane_in_direction(direction, cx)
 4600                    .unwrap_or_else(|| self.active_pane.clone());
 4601                let new_pane = self.add_pane(window, cx);
 4602                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4603                new_pane
 4604            }
 4605        };
 4606
 4607        if action.clone {
 4608            if self
 4609                .active_pane
 4610                .read(cx)
 4611                .active_item()
 4612                .is_some_and(|item| item.can_split(cx))
 4613            {
 4614                clone_active_item(
 4615                    self.database_id(),
 4616                    &self.active_pane,
 4617                    &destination,
 4618                    action.focus,
 4619                    window,
 4620                    cx,
 4621                );
 4622                return;
 4623            }
 4624        }
 4625        move_active_item(
 4626            &self.active_pane,
 4627            &destination,
 4628            action.focus,
 4629            true,
 4630            window,
 4631            cx,
 4632        )
 4633    }
 4634
 4635    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4636        let panes = self.center.panes();
 4637        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4638            let next_ix = (ix + 1) % panes.len();
 4639            let next_pane = panes[next_ix].clone();
 4640            window.focus(&next_pane.focus_handle(cx), cx);
 4641        }
 4642    }
 4643
 4644    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4645        let panes = self.center.panes();
 4646        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4647            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4648            let prev_pane = panes[prev_ix].clone();
 4649            window.focus(&prev_pane.focus_handle(cx), cx);
 4650        }
 4651    }
 4652
 4653    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4654        let last_pane = self.center.last_pane();
 4655        window.focus(&last_pane.focus_handle(cx), cx);
 4656    }
 4657
 4658    pub fn activate_pane_in_direction(
 4659        &mut self,
 4660        direction: SplitDirection,
 4661        window: &mut Window,
 4662        cx: &mut App,
 4663    ) {
 4664        use ActivateInDirectionTarget as Target;
 4665        enum Origin {
 4666            Sidebar,
 4667            LeftDock,
 4668            RightDock,
 4669            BottomDock,
 4670            Center,
 4671        }
 4672
 4673        let origin: Origin = if self
 4674            .sidebar_focus_handle
 4675            .as_ref()
 4676            .is_some_and(|h| h.contains_focused(window, cx))
 4677        {
 4678            Origin::Sidebar
 4679        } else {
 4680            [
 4681                (&self.left_dock, Origin::LeftDock),
 4682                (&self.right_dock, Origin::RightDock),
 4683                (&self.bottom_dock, Origin::BottomDock),
 4684            ]
 4685            .into_iter()
 4686            .find_map(|(dock, origin)| {
 4687                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4688                    Some(origin)
 4689                } else {
 4690                    None
 4691                }
 4692            })
 4693            .unwrap_or(Origin::Center)
 4694        };
 4695
 4696        let get_last_active_pane = || {
 4697            let pane = self
 4698                .last_active_center_pane
 4699                .clone()
 4700                .unwrap_or_else(|| {
 4701                    self.panes
 4702                        .first()
 4703                        .expect("There must be an active pane")
 4704                        .downgrade()
 4705                })
 4706                .upgrade()?;
 4707            (pane.read(cx).items_len() != 0).then_some(pane)
 4708        };
 4709
 4710        let try_dock =
 4711            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4712
 4713        let sidebar_target = self
 4714            .sidebar_focus_handle
 4715            .as_ref()
 4716            .map(|h| Target::Sidebar(h.clone()));
 4717
 4718        let target = match (origin, direction) {
 4719            // From the sidebar, only Right navigates into the workspace.
 4720            (Origin::Sidebar, SplitDirection::Right) => try_dock(&self.left_dock)
 4721                .or_else(|| get_last_active_pane().map(Target::Pane))
 4722                .or_else(|| try_dock(&self.bottom_dock))
 4723                .or_else(|| try_dock(&self.right_dock)),
 4724
 4725            (Origin::Sidebar, _) => None,
 4726
 4727            // We're in the center, so we first try to go to a different pane,
 4728            // otherwise try to go to a dock.
 4729            (Origin::Center, direction) => {
 4730                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4731                    Some(Target::Pane(pane))
 4732                } else {
 4733                    match direction {
 4734                        SplitDirection::Up => None,
 4735                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4736                        SplitDirection::Left => try_dock(&self.left_dock).or(sidebar_target),
 4737                        SplitDirection::Right => try_dock(&self.right_dock),
 4738                    }
 4739                }
 4740            }
 4741
 4742            (Origin::LeftDock, SplitDirection::Right) => {
 4743                if let Some(last_active_pane) = get_last_active_pane() {
 4744                    Some(Target::Pane(last_active_pane))
 4745                } else {
 4746                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4747                }
 4748            }
 4749
 4750            (Origin::LeftDock, SplitDirection::Left) => sidebar_target,
 4751
 4752            (Origin::LeftDock, SplitDirection::Down)
 4753            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4754
 4755            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4756            (Origin::BottomDock, SplitDirection::Left) => {
 4757                try_dock(&self.left_dock).or(sidebar_target)
 4758            }
 4759            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4760
 4761            (Origin::RightDock, SplitDirection::Left) => {
 4762                if let Some(last_active_pane) = get_last_active_pane() {
 4763                    Some(Target::Pane(last_active_pane))
 4764                } else {
 4765                    try_dock(&self.bottom_dock)
 4766                        .or_else(|| try_dock(&self.left_dock))
 4767                        .or(sidebar_target)
 4768                }
 4769            }
 4770
 4771            _ => None,
 4772        };
 4773
 4774        match target {
 4775            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4776                let pane = pane.read(cx);
 4777                if let Some(item) = pane.active_item() {
 4778                    item.item_focus_handle(cx).focus(window, cx);
 4779                } else {
 4780                    log::error!(
 4781                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4782                    );
 4783                }
 4784            }
 4785            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4786                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4787                window.defer(cx, move |window, cx| {
 4788                    let dock = dock.read(cx);
 4789                    if let Some(panel) = dock.active_panel() {
 4790                        panel.panel_focus_handle(cx).focus(window, cx);
 4791                    } else {
 4792                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4793                    }
 4794                })
 4795            }
 4796            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4797                focus_handle.focus(window, cx);
 4798            }
 4799            None => {}
 4800        }
 4801    }
 4802
 4803    pub fn move_item_to_pane_in_direction(
 4804        &mut self,
 4805        action: &MoveItemToPaneInDirection,
 4806        window: &mut Window,
 4807        cx: &mut Context<Self>,
 4808    ) {
 4809        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4810            Some(destination) => destination,
 4811            None => {
 4812                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4813                    return;
 4814                }
 4815                let new_pane = self.add_pane(window, cx);
 4816                self.center
 4817                    .split(&self.active_pane, &new_pane, action.direction, cx);
 4818                new_pane
 4819            }
 4820        };
 4821
 4822        if action.clone {
 4823            if self
 4824                .active_pane
 4825                .read(cx)
 4826                .active_item()
 4827                .is_some_and(|item| item.can_split(cx))
 4828            {
 4829                clone_active_item(
 4830                    self.database_id(),
 4831                    &self.active_pane,
 4832                    &destination,
 4833                    action.focus,
 4834                    window,
 4835                    cx,
 4836                );
 4837                return;
 4838            }
 4839        }
 4840        move_active_item(
 4841            &self.active_pane,
 4842            &destination,
 4843            action.focus,
 4844            true,
 4845            window,
 4846            cx,
 4847        );
 4848    }
 4849
 4850    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4851        self.center.bounding_box_for_pane(pane)
 4852    }
 4853
 4854    pub fn find_pane_in_direction(
 4855        &mut self,
 4856        direction: SplitDirection,
 4857        cx: &App,
 4858    ) -> Option<Entity<Pane>> {
 4859        self.center
 4860            .find_pane_in_direction(&self.active_pane, direction, cx)
 4861            .cloned()
 4862    }
 4863
 4864    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4865        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4866            self.center.swap(&self.active_pane, &to, cx);
 4867            cx.notify();
 4868        }
 4869    }
 4870
 4871    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4872        if self
 4873            .center
 4874            .move_to_border(&self.active_pane, direction, cx)
 4875            .unwrap()
 4876        {
 4877            cx.notify();
 4878        }
 4879    }
 4880
 4881    pub fn resize_pane(
 4882        &mut self,
 4883        axis: gpui::Axis,
 4884        amount: Pixels,
 4885        window: &mut Window,
 4886        cx: &mut Context<Self>,
 4887    ) {
 4888        let docks = self.all_docks();
 4889        let active_dock = docks
 4890            .into_iter()
 4891            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4892
 4893        if let Some(dock_entity) = active_dock {
 4894            let dock = dock_entity.read(cx);
 4895            let Some(panel_size) = dock
 4896                .active_panel()
 4897                .map(|panel| self.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx))
 4898            else {
 4899                return;
 4900            };
 4901            match dock.position() {
 4902                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4903                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4904                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4905            }
 4906        } else {
 4907            self.center
 4908                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4909        }
 4910        cx.notify();
 4911    }
 4912
 4913    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4914        self.center.reset_pane_sizes(cx);
 4915        cx.notify();
 4916    }
 4917
 4918    fn handle_pane_focused(
 4919        &mut self,
 4920        pane: Entity<Pane>,
 4921        window: &mut Window,
 4922        cx: &mut Context<Self>,
 4923    ) {
 4924        // This is explicitly hoisted out of the following check for pane identity as
 4925        // terminal panel panes are not registered as a center panes.
 4926        self.status_bar.update(cx, |status_bar, cx| {
 4927            status_bar.set_active_pane(&pane, window, cx);
 4928        });
 4929        if self.active_pane != pane {
 4930            self.set_active_pane(&pane, window, cx);
 4931        }
 4932
 4933        if self.last_active_center_pane.is_none() {
 4934            self.last_active_center_pane = Some(pane.downgrade());
 4935        }
 4936
 4937        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4938        // This prevents the dock from closing when focus events fire during window activation.
 4939        // We also preserve any dock whose active panel itself has focus — this covers
 4940        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4941        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4942            let dock_read = dock.read(cx);
 4943            if let Some(panel) = dock_read.active_panel() {
 4944                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4945                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4946                {
 4947                    return Some(dock_read.position());
 4948                }
 4949            }
 4950            None
 4951        });
 4952
 4953        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4954        if pane.read(cx).is_zoomed() {
 4955            self.zoomed = Some(pane.downgrade().into());
 4956        } else {
 4957            self.zoomed = None;
 4958        }
 4959        self.zoomed_position = None;
 4960        cx.emit(Event::ZoomChanged);
 4961        self.update_active_view_for_followers(window, cx);
 4962        pane.update(cx, |pane, _| {
 4963            pane.track_alternate_file_items();
 4964        });
 4965
 4966        cx.notify();
 4967    }
 4968
 4969    fn set_active_pane(
 4970        &mut self,
 4971        pane: &Entity<Pane>,
 4972        window: &mut Window,
 4973        cx: &mut Context<Self>,
 4974    ) {
 4975        self.active_pane = pane.clone();
 4976        self.active_item_path_changed(true, window, cx);
 4977        self.last_active_center_pane = Some(pane.downgrade());
 4978    }
 4979
 4980    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4981        self.update_active_view_for_followers(window, cx);
 4982    }
 4983
 4984    fn handle_pane_event(
 4985        &mut self,
 4986        pane: &Entity<Pane>,
 4987        event: &pane::Event,
 4988        window: &mut Window,
 4989        cx: &mut Context<Self>,
 4990    ) {
 4991        let mut serialize_workspace = true;
 4992        match event {
 4993            pane::Event::AddItem { item } => {
 4994                item.added_to_pane(self, pane.clone(), window, cx);
 4995                cx.emit(Event::ItemAdded {
 4996                    item: item.boxed_clone(),
 4997                });
 4998            }
 4999            pane::Event::Split { direction, mode } => {
 5000                match mode {
 5001                    SplitMode::ClonePane => {
 5002                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5003                            .detach();
 5004                    }
 5005                    SplitMode::EmptyPane => {
 5006                        self.split_pane(pane.clone(), *direction, window, cx);
 5007                    }
 5008                    SplitMode::MovePane => {
 5009                        self.split_and_move(pane.clone(), *direction, window, cx);
 5010                    }
 5011                };
 5012            }
 5013            pane::Event::JoinIntoNext => {
 5014                self.join_pane_into_next(pane.clone(), window, cx);
 5015            }
 5016            pane::Event::JoinAll => {
 5017                self.join_all_panes(window, cx);
 5018            }
 5019            pane::Event::Remove { focus_on_pane } => {
 5020                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5021            }
 5022            pane::Event::ActivateItem {
 5023                local,
 5024                focus_changed,
 5025            } => {
 5026                window.invalidate_character_coordinates();
 5027
 5028                pane.update(cx, |pane, _| {
 5029                    pane.track_alternate_file_items();
 5030                });
 5031                if *local {
 5032                    self.unfollow_in_pane(pane, window, cx);
 5033                }
 5034                serialize_workspace = *focus_changed || pane != self.active_pane();
 5035                if pane == self.active_pane() {
 5036                    self.active_item_path_changed(*focus_changed, window, cx);
 5037                    self.update_active_view_for_followers(window, cx);
 5038                } else if *local {
 5039                    self.set_active_pane(pane, window, cx);
 5040                }
 5041            }
 5042            pane::Event::UserSavedItem { item, save_intent } => {
 5043                cx.emit(Event::UserSavedItem {
 5044                    pane: pane.downgrade(),
 5045                    item: item.boxed_clone(),
 5046                    save_intent: *save_intent,
 5047                });
 5048                serialize_workspace = false;
 5049            }
 5050            pane::Event::ChangeItemTitle => {
 5051                if *pane == self.active_pane {
 5052                    self.active_item_path_changed(false, window, cx);
 5053                }
 5054                serialize_workspace = false;
 5055            }
 5056            pane::Event::RemovedItem { item } => {
 5057                cx.emit(Event::ActiveItemChanged);
 5058                self.update_window_edited(window, cx);
 5059                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5060                    && entry.get().entity_id() == pane.entity_id()
 5061                {
 5062                    entry.remove();
 5063                }
 5064                cx.emit(Event::ItemRemoved {
 5065                    item_id: item.item_id(),
 5066                });
 5067            }
 5068            pane::Event::Focus => {
 5069                window.invalidate_character_coordinates();
 5070                self.handle_pane_focused(pane.clone(), window, cx);
 5071            }
 5072            pane::Event::ZoomIn => {
 5073                if *pane == self.active_pane {
 5074                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5075                    if pane.read(cx).has_focus(window, cx) {
 5076                        self.zoomed = Some(pane.downgrade().into());
 5077                        self.zoomed_position = None;
 5078                        cx.emit(Event::ZoomChanged);
 5079                    }
 5080                    cx.notify();
 5081                }
 5082            }
 5083            pane::Event::ZoomOut => {
 5084                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5085                if self.zoomed_position.is_none() {
 5086                    self.zoomed = None;
 5087                    cx.emit(Event::ZoomChanged);
 5088                }
 5089                cx.notify();
 5090            }
 5091            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5092        }
 5093
 5094        if serialize_workspace {
 5095            self.serialize_workspace(window, cx);
 5096        }
 5097    }
 5098
 5099    pub fn unfollow_in_pane(
 5100        &mut self,
 5101        pane: &Entity<Pane>,
 5102        window: &mut Window,
 5103        cx: &mut Context<Workspace>,
 5104    ) -> Option<CollaboratorId> {
 5105        let leader_id = self.leader_for_pane(pane)?;
 5106        self.unfollow(leader_id, window, cx);
 5107        Some(leader_id)
 5108    }
 5109
 5110    pub fn split_pane(
 5111        &mut self,
 5112        pane_to_split: Entity<Pane>,
 5113        split_direction: SplitDirection,
 5114        window: &mut Window,
 5115        cx: &mut Context<Self>,
 5116    ) -> Entity<Pane> {
 5117        let new_pane = self.add_pane(window, cx);
 5118        self.center
 5119            .split(&pane_to_split, &new_pane, split_direction, cx);
 5120        cx.notify();
 5121        new_pane
 5122    }
 5123
 5124    pub fn split_and_move(
 5125        &mut self,
 5126        pane: Entity<Pane>,
 5127        direction: SplitDirection,
 5128        window: &mut Window,
 5129        cx: &mut Context<Self>,
 5130    ) {
 5131        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5132            return;
 5133        };
 5134        let new_pane = self.add_pane(window, cx);
 5135        new_pane.update(cx, |pane, cx| {
 5136            pane.add_item(item, true, true, None, window, cx)
 5137        });
 5138        self.center.split(&pane, &new_pane, direction, cx);
 5139        cx.notify();
 5140    }
 5141
 5142    pub fn split_and_clone(
 5143        &mut self,
 5144        pane: Entity<Pane>,
 5145        direction: SplitDirection,
 5146        window: &mut Window,
 5147        cx: &mut Context<Self>,
 5148    ) -> Task<Option<Entity<Pane>>> {
 5149        let Some(item) = pane.read(cx).active_item() else {
 5150            return Task::ready(None);
 5151        };
 5152        if !item.can_split(cx) {
 5153            return Task::ready(None);
 5154        }
 5155        let task = item.clone_on_split(self.database_id(), window, cx);
 5156        cx.spawn_in(window, async move |this, cx| {
 5157            if let Some(clone) = task.await {
 5158                this.update_in(cx, |this, window, cx| {
 5159                    let new_pane = this.add_pane(window, cx);
 5160                    let nav_history = pane.read(cx).fork_nav_history();
 5161                    new_pane.update(cx, |pane, cx| {
 5162                        pane.set_nav_history(nav_history, cx);
 5163                        pane.add_item(clone, true, true, None, window, cx)
 5164                    });
 5165                    this.center.split(&pane, &new_pane, direction, cx);
 5166                    cx.notify();
 5167                    new_pane
 5168                })
 5169                .ok()
 5170            } else {
 5171                None
 5172            }
 5173        })
 5174    }
 5175
 5176    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5177        let active_item = self.active_pane.read(cx).active_item();
 5178        for pane in &self.panes {
 5179            join_pane_into_active(&self.active_pane, pane, window, cx);
 5180        }
 5181        if let Some(active_item) = active_item {
 5182            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5183        }
 5184        cx.notify();
 5185    }
 5186
 5187    pub fn join_pane_into_next(
 5188        &mut self,
 5189        pane: Entity<Pane>,
 5190        window: &mut Window,
 5191        cx: &mut Context<Self>,
 5192    ) {
 5193        let next_pane = self
 5194            .find_pane_in_direction(SplitDirection::Right, cx)
 5195            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5196            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5197            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5198        let Some(next_pane) = next_pane else {
 5199            return;
 5200        };
 5201        move_all_items(&pane, &next_pane, window, cx);
 5202        cx.notify();
 5203    }
 5204
 5205    fn remove_pane(
 5206        &mut self,
 5207        pane: Entity<Pane>,
 5208        focus_on: Option<Entity<Pane>>,
 5209        window: &mut Window,
 5210        cx: &mut Context<Self>,
 5211    ) {
 5212        if self.center.remove(&pane, cx).unwrap() {
 5213            self.force_remove_pane(&pane, &focus_on, window, cx);
 5214            self.unfollow_in_pane(&pane, window, cx);
 5215            self.last_leaders_by_pane.remove(&pane.downgrade());
 5216            for removed_item in pane.read(cx).items() {
 5217                self.panes_by_item.remove(&removed_item.item_id());
 5218            }
 5219
 5220            cx.notify();
 5221        } else {
 5222            self.active_item_path_changed(true, window, cx);
 5223        }
 5224        cx.emit(Event::PaneRemoved);
 5225    }
 5226
 5227    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5228        &mut self.panes
 5229    }
 5230
 5231    pub fn panes(&self) -> &[Entity<Pane>] {
 5232        &self.panes
 5233    }
 5234
 5235    pub fn active_pane(&self) -> &Entity<Pane> {
 5236        &self.active_pane
 5237    }
 5238
 5239    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5240        for dock in self.all_docks() {
 5241            if dock.focus_handle(cx).contains_focused(window, cx)
 5242                && let Some(pane) = dock
 5243                    .read(cx)
 5244                    .active_panel()
 5245                    .and_then(|panel| panel.pane(cx))
 5246            {
 5247                return pane;
 5248            }
 5249        }
 5250        self.active_pane().clone()
 5251    }
 5252
 5253    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5254        self.find_pane_in_direction(SplitDirection::Right, cx)
 5255            .unwrap_or_else(|| {
 5256                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5257            })
 5258    }
 5259
 5260    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5261        self.pane_for_item_id(handle.item_id())
 5262    }
 5263
 5264    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5265        let weak_pane = self.panes_by_item.get(&item_id)?;
 5266        weak_pane.upgrade()
 5267    }
 5268
 5269    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5270        self.panes
 5271            .iter()
 5272            .find(|pane| pane.entity_id() == entity_id)
 5273            .cloned()
 5274    }
 5275
 5276    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5277        self.follower_states.retain(|leader_id, state| {
 5278            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5279                for item in state.items_by_leader_view_id.values() {
 5280                    item.view.set_leader_id(None, window, cx);
 5281                }
 5282                false
 5283            } else {
 5284                true
 5285            }
 5286        });
 5287        cx.notify();
 5288    }
 5289
 5290    pub fn start_following(
 5291        &mut self,
 5292        leader_id: impl Into<CollaboratorId>,
 5293        window: &mut Window,
 5294        cx: &mut Context<Self>,
 5295    ) -> Option<Task<Result<()>>> {
 5296        let leader_id = leader_id.into();
 5297        let pane = self.active_pane().clone();
 5298
 5299        self.last_leaders_by_pane
 5300            .insert(pane.downgrade(), leader_id);
 5301        self.unfollow(leader_id, window, cx);
 5302        self.unfollow_in_pane(&pane, window, cx);
 5303        self.follower_states.insert(
 5304            leader_id,
 5305            FollowerState {
 5306                center_pane: pane.clone(),
 5307                dock_pane: None,
 5308                active_view_id: None,
 5309                items_by_leader_view_id: Default::default(),
 5310            },
 5311        );
 5312        cx.notify();
 5313
 5314        match leader_id {
 5315            CollaboratorId::PeerId(leader_peer_id) => {
 5316                let room_id = self.active_call()?.room_id(cx)?;
 5317                let project_id = self.project.read(cx).remote_id();
 5318                let request = self.app_state.client.request(proto::Follow {
 5319                    room_id,
 5320                    project_id,
 5321                    leader_id: Some(leader_peer_id),
 5322                });
 5323
 5324                Some(cx.spawn_in(window, async move |this, cx| {
 5325                    let response = request.await?;
 5326                    this.update(cx, |this, _| {
 5327                        let state = this
 5328                            .follower_states
 5329                            .get_mut(&leader_id)
 5330                            .context("following interrupted")?;
 5331                        state.active_view_id = response
 5332                            .active_view
 5333                            .as_ref()
 5334                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5335                        anyhow::Ok(())
 5336                    })??;
 5337                    if let Some(view) = response.active_view {
 5338                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5339                    }
 5340                    this.update_in(cx, |this, window, cx| {
 5341                        this.leader_updated(leader_id, window, cx)
 5342                    })?;
 5343                    Ok(())
 5344                }))
 5345            }
 5346            CollaboratorId::Agent => {
 5347                self.leader_updated(leader_id, window, cx)?;
 5348                Some(Task::ready(Ok(())))
 5349            }
 5350        }
 5351    }
 5352
 5353    pub fn follow_next_collaborator(
 5354        &mut self,
 5355        _: &FollowNextCollaborator,
 5356        window: &mut Window,
 5357        cx: &mut Context<Self>,
 5358    ) {
 5359        let collaborators = self.project.read(cx).collaborators();
 5360        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5361            let mut collaborators = collaborators.keys().copied();
 5362            for peer_id in collaborators.by_ref() {
 5363                if CollaboratorId::PeerId(peer_id) == leader_id {
 5364                    break;
 5365                }
 5366            }
 5367            collaborators.next().map(CollaboratorId::PeerId)
 5368        } else if let Some(last_leader_id) =
 5369            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5370        {
 5371            match last_leader_id {
 5372                CollaboratorId::PeerId(peer_id) => {
 5373                    if collaborators.contains_key(peer_id) {
 5374                        Some(*last_leader_id)
 5375                    } else {
 5376                        None
 5377                    }
 5378                }
 5379                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5380            }
 5381        } else {
 5382            None
 5383        };
 5384
 5385        let pane = self.active_pane.clone();
 5386        let Some(leader_id) = next_leader_id.or_else(|| {
 5387            Some(CollaboratorId::PeerId(
 5388                collaborators.keys().copied().next()?,
 5389            ))
 5390        }) else {
 5391            return;
 5392        };
 5393        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5394            return;
 5395        }
 5396        if let Some(task) = self.start_following(leader_id, window, cx) {
 5397            task.detach_and_log_err(cx)
 5398        }
 5399    }
 5400
 5401    pub fn follow(
 5402        &mut self,
 5403        leader_id: impl Into<CollaboratorId>,
 5404        window: &mut Window,
 5405        cx: &mut Context<Self>,
 5406    ) {
 5407        let leader_id = leader_id.into();
 5408
 5409        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5410            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5411                return;
 5412            };
 5413            let Some(remote_participant) =
 5414                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5415            else {
 5416                return;
 5417            };
 5418
 5419            let project = self.project.read(cx);
 5420
 5421            let other_project_id = match remote_participant.location {
 5422                ParticipantLocation::External => None,
 5423                ParticipantLocation::UnsharedProject => None,
 5424                ParticipantLocation::SharedProject { project_id } => {
 5425                    if Some(project_id) == project.remote_id() {
 5426                        None
 5427                    } else {
 5428                        Some(project_id)
 5429                    }
 5430                }
 5431            };
 5432
 5433            // if they are active in another project, follow there.
 5434            if let Some(project_id) = other_project_id {
 5435                let app_state = self.app_state.clone();
 5436                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5437                    .detach_and_log_err(cx);
 5438            }
 5439        }
 5440
 5441        // if you're already following, find the right pane and focus it.
 5442        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5443            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5444
 5445            return;
 5446        }
 5447
 5448        // Otherwise, follow.
 5449        if let Some(task) = self.start_following(leader_id, window, cx) {
 5450            task.detach_and_log_err(cx)
 5451        }
 5452    }
 5453
 5454    pub fn unfollow(
 5455        &mut self,
 5456        leader_id: impl Into<CollaboratorId>,
 5457        window: &mut Window,
 5458        cx: &mut Context<Self>,
 5459    ) -> Option<()> {
 5460        cx.notify();
 5461
 5462        let leader_id = leader_id.into();
 5463        let state = self.follower_states.remove(&leader_id)?;
 5464        for (_, item) in state.items_by_leader_view_id {
 5465            item.view.set_leader_id(None, window, cx);
 5466        }
 5467
 5468        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5469            let project_id = self.project.read(cx).remote_id();
 5470            let room_id = self.active_call()?.room_id(cx)?;
 5471            self.app_state
 5472                .client
 5473                .send(proto::Unfollow {
 5474                    room_id,
 5475                    project_id,
 5476                    leader_id: Some(leader_peer_id),
 5477                })
 5478                .log_err();
 5479        }
 5480
 5481        Some(())
 5482    }
 5483
 5484    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5485        self.follower_states.contains_key(&id.into())
 5486    }
 5487
 5488    fn active_item_path_changed(
 5489        &mut self,
 5490        focus_changed: bool,
 5491        window: &mut Window,
 5492        cx: &mut Context<Self>,
 5493    ) {
 5494        cx.emit(Event::ActiveItemChanged);
 5495        let active_entry = self.active_project_path(cx);
 5496        self.project.update(cx, |project, cx| {
 5497            project.set_active_path(active_entry.clone(), cx)
 5498        });
 5499
 5500        if focus_changed && let Some(project_path) = &active_entry {
 5501            let git_store_entity = self.project.read(cx).git_store().clone();
 5502            git_store_entity.update(cx, |git_store, cx| {
 5503                git_store.set_active_repo_for_path(project_path, cx);
 5504            });
 5505        }
 5506
 5507        self.update_window_title(window, cx);
 5508    }
 5509
 5510    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5511        let project = self.project().read(cx);
 5512        let mut title = String::new();
 5513
 5514        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5515            let name = {
 5516                let settings_location = SettingsLocation {
 5517                    worktree_id: worktree.read(cx).id(),
 5518                    path: RelPath::empty(),
 5519                };
 5520
 5521                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5522                match &settings.project_name {
 5523                    Some(name) => name.as_str(),
 5524                    None => worktree.read(cx).root_name_str(),
 5525                }
 5526            };
 5527            if i > 0 {
 5528                title.push_str(", ");
 5529            }
 5530            title.push_str(name);
 5531        }
 5532
 5533        if title.is_empty() {
 5534            title = "empty project".to_string();
 5535        }
 5536
 5537        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5538            let filename = path.path.file_name().or_else(|| {
 5539                Some(
 5540                    project
 5541                        .worktree_for_id(path.worktree_id, cx)?
 5542                        .read(cx)
 5543                        .root_name_str(),
 5544                )
 5545            });
 5546
 5547            if let Some(filename) = filename {
 5548                title.push_str("");
 5549                title.push_str(filename.as_ref());
 5550            }
 5551        }
 5552
 5553        if project.is_via_collab() {
 5554            title.push_str("");
 5555        } else if project.is_shared() {
 5556            title.push_str("");
 5557        }
 5558
 5559        if let Some(last_title) = self.last_window_title.as_ref()
 5560            && &title == last_title
 5561        {
 5562            return;
 5563        }
 5564        window.set_window_title(&title);
 5565        SystemWindowTabController::update_tab_title(
 5566            cx,
 5567            window.window_handle().window_id(),
 5568            SharedString::from(&title),
 5569        );
 5570        self.last_window_title = Some(title);
 5571    }
 5572
 5573    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5574        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5575        if is_edited != self.window_edited {
 5576            self.window_edited = is_edited;
 5577            window.set_window_edited(self.window_edited)
 5578        }
 5579    }
 5580
 5581    fn update_item_dirty_state(
 5582        &mut self,
 5583        item: &dyn ItemHandle,
 5584        window: &mut Window,
 5585        cx: &mut App,
 5586    ) {
 5587        let is_dirty = item.is_dirty(cx);
 5588        let item_id = item.item_id();
 5589        let was_dirty = self.dirty_items.contains_key(&item_id);
 5590        if is_dirty == was_dirty {
 5591            return;
 5592        }
 5593        if was_dirty {
 5594            self.dirty_items.remove(&item_id);
 5595            self.update_window_edited(window, cx);
 5596            return;
 5597        }
 5598
 5599        let workspace = self.weak_handle();
 5600        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5601            return;
 5602        };
 5603        let on_release_callback = Box::new(move |cx: &mut App| {
 5604            window_handle
 5605                .update(cx, |_, window, cx| {
 5606                    workspace
 5607                        .update(cx, |workspace, cx| {
 5608                            workspace.dirty_items.remove(&item_id);
 5609                            workspace.update_window_edited(window, cx)
 5610                        })
 5611                        .ok();
 5612                })
 5613                .ok();
 5614        });
 5615
 5616        let s = item.on_release(cx, on_release_callback);
 5617        self.dirty_items.insert(item_id, s);
 5618        self.update_window_edited(window, cx);
 5619    }
 5620
 5621    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5622        if self.notifications.is_empty() {
 5623            None
 5624        } else {
 5625            Some(
 5626                div()
 5627                    .absolute()
 5628                    .right_3()
 5629                    .bottom_3()
 5630                    .w_112()
 5631                    .h_full()
 5632                    .flex()
 5633                    .flex_col()
 5634                    .justify_end()
 5635                    .gap_2()
 5636                    .children(
 5637                        self.notifications
 5638                            .iter()
 5639                            .map(|(_, notification)| notification.clone().into_any()),
 5640                    ),
 5641            )
 5642        }
 5643    }
 5644
 5645    // RPC handlers
 5646
 5647    fn active_view_for_follower(
 5648        &self,
 5649        follower_project_id: Option<u64>,
 5650        window: &mut Window,
 5651        cx: &mut Context<Self>,
 5652    ) -> Option<proto::View> {
 5653        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5654        let item = item?;
 5655        let leader_id = self
 5656            .pane_for(&*item)
 5657            .and_then(|pane| self.leader_for_pane(&pane));
 5658        let leader_peer_id = match leader_id {
 5659            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5660            Some(CollaboratorId::Agent) | None => None,
 5661        };
 5662
 5663        let item_handle = item.to_followable_item_handle(cx)?;
 5664        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5665        let variant = item_handle.to_state_proto(window, cx)?;
 5666
 5667        if item_handle.is_project_item(window, cx)
 5668            && (follower_project_id.is_none()
 5669                || follower_project_id != self.project.read(cx).remote_id())
 5670        {
 5671            return None;
 5672        }
 5673
 5674        Some(proto::View {
 5675            id: id.to_proto(),
 5676            leader_id: leader_peer_id,
 5677            variant: Some(variant),
 5678            panel_id: panel_id.map(|id| id as i32),
 5679        })
 5680    }
 5681
 5682    fn handle_follow(
 5683        &mut self,
 5684        follower_project_id: Option<u64>,
 5685        window: &mut Window,
 5686        cx: &mut Context<Self>,
 5687    ) -> proto::FollowResponse {
 5688        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5689
 5690        cx.notify();
 5691        proto::FollowResponse {
 5692            views: active_view.iter().cloned().collect(),
 5693            active_view,
 5694        }
 5695    }
 5696
 5697    fn handle_update_followers(
 5698        &mut self,
 5699        leader_id: PeerId,
 5700        message: proto::UpdateFollowers,
 5701        _window: &mut Window,
 5702        _cx: &mut Context<Self>,
 5703    ) {
 5704        self.leader_updates_tx
 5705            .unbounded_send((leader_id, message))
 5706            .ok();
 5707    }
 5708
 5709    async fn process_leader_update(
 5710        this: &WeakEntity<Self>,
 5711        leader_id: PeerId,
 5712        update: proto::UpdateFollowers,
 5713        cx: &mut AsyncWindowContext,
 5714    ) -> Result<()> {
 5715        match update.variant.context("invalid update")? {
 5716            proto::update_followers::Variant::CreateView(view) => {
 5717                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5718                let should_add_view = this.update(cx, |this, _| {
 5719                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5720                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5721                    } else {
 5722                        anyhow::Ok(false)
 5723                    }
 5724                })??;
 5725
 5726                if should_add_view {
 5727                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5728                }
 5729            }
 5730            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5731                let should_add_view = this.update(cx, |this, _| {
 5732                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5733                        state.active_view_id = update_active_view
 5734                            .view
 5735                            .as_ref()
 5736                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5737
 5738                        if state.active_view_id.is_some_and(|view_id| {
 5739                            !state.items_by_leader_view_id.contains_key(&view_id)
 5740                        }) {
 5741                            anyhow::Ok(true)
 5742                        } else {
 5743                            anyhow::Ok(false)
 5744                        }
 5745                    } else {
 5746                        anyhow::Ok(false)
 5747                    }
 5748                })??;
 5749
 5750                if should_add_view && let Some(view) = update_active_view.view {
 5751                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5752                }
 5753            }
 5754            proto::update_followers::Variant::UpdateView(update_view) => {
 5755                let variant = update_view.variant.context("missing update view variant")?;
 5756                let id = update_view.id.context("missing update view id")?;
 5757                let mut tasks = Vec::new();
 5758                this.update_in(cx, |this, window, cx| {
 5759                    let project = this.project.clone();
 5760                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5761                        let view_id = ViewId::from_proto(id.clone())?;
 5762                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5763                            tasks.push(item.view.apply_update_proto(
 5764                                &project,
 5765                                variant.clone(),
 5766                                window,
 5767                                cx,
 5768                            ));
 5769                        }
 5770                    }
 5771                    anyhow::Ok(())
 5772                })??;
 5773                try_join_all(tasks).await.log_err();
 5774            }
 5775        }
 5776        this.update_in(cx, |this, window, cx| {
 5777            this.leader_updated(leader_id, window, cx)
 5778        })?;
 5779        Ok(())
 5780    }
 5781
 5782    async fn add_view_from_leader(
 5783        this: WeakEntity<Self>,
 5784        leader_id: PeerId,
 5785        view: &proto::View,
 5786        cx: &mut AsyncWindowContext,
 5787    ) -> Result<()> {
 5788        let this = this.upgrade().context("workspace dropped")?;
 5789
 5790        let Some(id) = view.id.clone() else {
 5791            anyhow::bail!("no id for view");
 5792        };
 5793        let id = ViewId::from_proto(id)?;
 5794        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5795
 5796        let pane = this.update(cx, |this, _cx| {
 5797            let state = this
 5798                .follower_states
 5799                .get(&leader_id.into())
 5800                .context("stopped following")?;
 5801            anyhow::Ok(state.pane().clone())
 5802        })?;
 5803        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5804            let client = this.read(cx).client().clone();
 5805            pane.items().find_map(|item| {
 5806                let item = item.to_followable_item_handle(cx)?;
 5807                if item.remote_id(&client, window, cx) == Some(id) {
 5808                    Some(item)
 5809                } else {
 5810                    None
 5811                }
 5812            })
 5813        })?;
 5814        let item = if let Some(existing_item) = existing_item {
 5815            existing_item
 5816        } else {
 5817            let variant = view.variant.clone();
 5818            anyhow::ensure!(variant.is_some(), "missing view variant");
 5819
 5820            let task = cx.update(|window, cx| {
 5821                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5822            })?;
 5823
 5824            let Some(task) = task else {
 5825                anyhow::bail!(
 5826                    "failed to construct view from leader (maybe from a different version of zed?)"
 5827                );
 5828            };
 5829
 5830            let mut new_item = task.await?;
 5831            pane.update_in(cx, |pane, window, cx| {
 5832                let mut item_to_remove = None;
 5833                for (ix, item) in pane.items().enumerate() {
 5834                    if let Some(item) = item.to_followable_item_handle(cx) {
 5835                        match new_item.dedup(item.as_ref(), window, cx) {
 5836                            Some(item::Dedup::KeepExisting) => {
 5837                                new_item =
 5838                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5839                                break;
 5840                            }
 5841                            Some(item::Dedup::ReplaceExisting) => {
 5842                                item_to_remove = Some((ix, item.item_id()));
 5843                                break;
 5844                            }
 5845                            None => {}
 5846                        }
 5847                    }
 5848                }
 5849
 5850                if let Some((ix, id)) = item_to_remove {
 5851                    pane.remove_item(id, false, false, window, cx);
 5852                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5853                }
 5854            })?;
 5855
 5856            new_item
 5857        };
 5858
 5859        this.update_in(cx, |this, window, cx| {
 5860            let state = this.follower_states.get_mut(&leader_id.into())?;
 5861            item.set_leader_id(Some(leader_id.into()), window, cx);
 5862            state.items_by_leader_view_id.insert(
 5863                id,
 5864                FollowerView {
 5865                    view: item,
 5866                    location: panel_id,
 5867                },
 5868            );
 5869
 5870            Some(())
 5871        })
 5872        .context("no follower state")?;
 5873
 5874        Ok(())
 5875    }
 5876
 5877    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5878        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5879            return;
 5880        };
 5881
 5882        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5883            let buffer_entity_id = agent_location.buffer.entity_id();
 5884            let view_id = ViewId {
 5885                creator: CollaboratorId::Agent,
 5886                id: buffer_entity_id.as_u64(),
 5887            };
 5888            follower_state.active_view_id = Some(view_id);
 5889
 5890            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5891                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5892                hash_map::Entry::Vacant(entry) => {
 5893                    let existing_view =
 5894                        follower_state
 5895                            .center_pane
 5896                            .read(cx)
 5897                            .items()
 5898                            .find_map(|item| {
 5899                                let item = item.to_followable_item_handle(cx)?;
 5900                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5901                                    && item.project_item_model_ids(cx).as_slice()
 5902                                        == [buffer_entity_id]
 5903                                {
 5904                                    Some(item)
 5905                                } else {
 5906                                    None
 5907                                }
 5908                            });
 5909                    let view = existing_view.or_else(|| {
 5910                        agent_location.buffer.upgrade().and_then(|buffer| {
 5911                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5912                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5913                            })?
 5914                            .to_followable_item_handle(cx)
 5915                        })
 5916                    });
 5917
 5918                    view.map(|view| {
 5919                        entry.insert(FollowerView {
 5920                            view,
 5921                            location: None,
 5922                        })
 5923                    })
 5924                }
 5925            };
 5926
 5927            if let Some(item) = item {
 5928                item.view
 5929                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5930                item.view
 5931                    .update_agent_location(agent_location.position, window, cx);
 5932            }
 5933        } else {
 5934            follower_state.active_view_id = None;
 5935        }
 5936
 5937        self.leader_updated(CollaboratorId::Agent, window, cx);
 5938    }
 5939
 5940    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5941        let mut is_project_item = true;
 5942        let mut update = proto::UpdateActiveView::default();
 5943        if window.is_window_active() {
 5944            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5945
 5946            if let Some(item) = active_item
 5947                && item.item_focus_handle(cx).contains_focused(window, cx)
 5948            {
 5949                let leader_id = self
 5950                    .pane_for(&*item)
 5951                    .and_then(|pane| self.leader_for_pane(&pane));
 5952                let leader_peer_id = match leader_id {
 5953                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5954                    Some(CollaboratorId::Agent) | None => None,
 5955                };
 5956
 5957                if let Some(item) = item.to_followable_item_handle(cx) {
 5958                    let id = item
 5959                        .remote_id(&self.app_state.client, window, cx)
 5960                        .map(|id| id.to_proto());
 5961
 5962                    if let Some(id) = id
 5963                        && let Some(variant) = item.to_state_proto(window, cx)
 5964                    {
 5965                        let view = Some(proto::View {
 5966                            id,
 5967                            leader_id: leader_peer_id,
 5968                            variant: Some(variant),
 5969                            panel_id: panel_id.map(|id| id as i32),
 5970                        });
 5971
 5972                        is_project_item = item.is_project_item(window, cx);
 5973                        update = proto::UpdateActiveView { view };
 5974                    };
 5975                }
 5976            }
 5977        }
 5978
 5979        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5980        if active_view_id != self.last_active_view_id.as_ref() {
 5981            self.last_active_view_id = active_view_id.cloned();
 5982            self.update_followers(
 5983                is_project_item,
 5984                proto::update_followers::Variant::UpdateActiveView(update),
 5985                window,
 5986                cx,
 5987            );
 5988        }
 5989    }
 5990
 5991    fn active_item_for_followers(
 5992        &self,
 5993        window: &mut Window,
 5994        cx: &mut App,
 5995    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5996        let mut active_item = None;
 5997        let mut panel_id = None;
 5998        for dock in self.all_docks() {
 5999            if dock.focus_handle(cx).contains_focused(window, cx)
 6000                && let Some(panel) = dock.read(cx).active_panel()
 6001                && let Some(pane) = panel.pane(cx)
 6002                && let Some(item) = pane.read(cx).active_item()
 6003            {
 6004                active_item = Some(item);
 6005                panel_id = panel.remote_id();
 6006                break;
 6007            }
 6008        }
 6009
 6010        if active_item.is_none() {
 6011            active_item = self.active_pane().read(cx).active_item();
 6012        }
 6013        (active_item, panel_id)
 6014    }
 6015
 6016    fn update_followers(
 6017        &self,
 6018        project_only: bool,
 6019        update: proto::update_followers::Variant,
 6020        _: &mut Window,
 6021        cx: &mut App,
 6022    ) -> Option<()> {
 6023        // If this update only applies to for followers in the current project,
 6024        // then skip it unless this project is shared. If it applies to all
 6025        // followers, regardless of project, then set `project_id` to none,
 6026        // indicating that it goes to all followers.
 6027        let project_id = if project_only {
 6028            Some(self.project.read(cx).remote_id()?)
 6029        } else {
 6030            None
 6031        };
 6032        self.app_state().workspace_store.update(cx, |store, cx| {
 6033            store.update_followers(project_id, update, cx)
 6034        })
 6035    }
 6036
 6037    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6038        self.follower_states.iter().find_map(|(leader_id, state)| {
 6039            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6040                Some(*leader_id)
 6041            } else {
 6042                None
 6043            }
 6044        })
 6045    }
 6046
 6047    fn leader_updated(
 6048        &mut self,
 6049        leader_id: impl Into<CollaboratorId>,
 6050        window: &mut Window,
 6051        cx: &mut Context<Self>,
 6052    ) -> Option<Box<dyn ItemHandle>> {
 6053        cx.notify();
 6054
 6055        let leader_id = leader_id.into();
 6056        let (panel_id, item) = match leader_id {
 6057            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6058            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6059        };
 6060
 6061        let state = self.follower_states.get(&leader_id)?;
 6062        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6063        let pane;
 6064        if let Some(panel_id) = panel_id {
 6065            pane = self
 6066                .activate_panel_for_proto_id(panel_id, window, cx)?
 6067                .pane(cx)?;
 6068            let state = self.follower_states.get_mut(&leader_id)?;
 6069            state.dock_pane = Some(pane.clone());
 6070        } else {
 6071            pane = state.center_pane.clone();
 6072            let state = self.follower_states.get_mut(&leader_id)?;
 6073            if let Some(dock_pane) = state.dock_pane.take() {
 6074                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6075            }
 6076        }
 6077
 6078        pane.update(cx, |pane, cx| {
 6079            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6080            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6081                pane.activate_item(index, false, false, window, cx);
 6082            } else {
 6083                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6084            }
 6085
 6086            if focus_active_item {
 6087                pane.focus_active_item(window, cx)
 6088            }
 6089        });
 6090
 6091        Some(item)
 6092    }
 6093
 6094    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6095        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6096        let active_view_id = state.active_view_id?;
 6097        Some(
 6098            state
 6099                .items_by_leader_view_id
 6100                .get(&active_view_id)?
 6101                .view
 6102                .boxed_clone(),
 6103        )
 6104    }
 6105
 6106    fn active_item_for_peer(
 6107        &self,
 6108        peer_id: PeerId,
 6109        window: &mut Window,
 6110        cx: &mut Context<Self>,
 6111    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6112        let call = self.active_call()?;
 6113        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6114        let leader_in_this_app;
 6115        let leader_in_this_project;
 6116        match participant.location {
 6117            ParticipantLocation::SharedProject { project_id } => {
 6118                leader_in_this_app = true;
 6119                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6120            }
 6121            ParticipantLocation::UnsharedProject => {
 6122                leader_in_this_app = true;
 6123                leader_in_this_project = false;
 6124            }
 6125            ParticipantLocation::External => {
 6126                leader_in_this_app = false;
 6127                leader_in_this_project = false;
 6128            }
 6129        };
 6130        let state = self.follower_states.get(&peer_id.into())?;
 6131        let mut item_to_activate = None;
 6132        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6133            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6134                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6135            {
 6136                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6137            }
 6138        } else if let Some(shared_screen) =
 6139            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6140        {
 6141            item_to_activate = Some((None, Box::new(shared_screen)));
 6142        }
 6143        item_to_activate
 6144    }
 6145
 6146    fn shared_screen_for_peer(
 6147        &self,
 6148        peer_id: PeerId,
 6149        pane: &Entity<Pane>,
 6150        window: &mut Window,
 6151        cx: &mut App,
 6152    ) -> Option<Entity<SharedScreen>> {
 6153        self.active_call()?
 6154            .create_shared_screen(peer_id, pane, window, cx)
 6155    }
 6156
 6157    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6158        if window.is_window_active() {
 6159            self.update_active_view_for_followers(window, cx);
 6160
 6161            if let Some(database_id) = self.database_id {
 6162                let db = WorkspaceDb::global(cx);
 6163                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6164                    .detach();
 6165            }
 6166        } else {
 6167            for pane in &self.panes {
 6168                pane.update(cx, |pane, cx| {
 6169                    if let Some(item) = pane.active_item() {
 6170                        item.workspace_deactivated(window, cx);
 6171                    }
 6172                    for item in pane.items() {
 6173                        if matches!(
 6174                            item.workspace_settings(cx).autosave,
 6175                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6176                        ) {
 6177                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6178                                .detach_and_log_err(cx);
 6179                        }
 6180                    }
 6181                });
 6182            }
 6183        }
 6184    }
 6185
 6186    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6187        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6188    }
 6189
 6190    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6191        self.active_call.as_ref().map(|(call, _)| call.clone())
 6192    }
 6193
 6194    fn on_active_call_event(
 6195        &mut self,
 6196        event: &ActiveCallEvent,
 6197        window: &mut Window,
 6198        cx: &mut Context<Self>,
 6199    ) {
 6200        match event {
 6201            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6202            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6203                self.leader_updated(participant_id, window, cx);
 6204            }
 6205        }
 6206    }
 6207
 6208    pub fn database_id(&self) -> Option<WorkspaceId> {
 6209        self.database_id
 6210    }
 6211
 6212    #[cfg(any(test, feature = "test-support"))]
 6213    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6214        self.database_id = Some(id);
 6215    }
 6216
 6217    pub fn session_id(&self) -> Option<String> {
 6218        self.session_id.clone()
 6219    }
 6220
 6221    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6222        let Some(display) = window.display(cx) else {
 6223            return Task::ready(());
 6224        };
 6225        let Ok(display_uuid) = display.uuid() else {
 6226            return Task::ready(());
 6227        };
 6228
 6229        let window_bounds = window.inner_window_bounds();
 6230        let database_id = self.database_id;
 6231        let has_paths = !self.root_paths(cx).is_empty();
 6232        let db = WorkspaceDb::global(cx);
 6233        let kvp = db::kvp::KeyValueStore::global(cx);
 6234
 6235        cx.background_executor().spawn(async move {
 6236            if !has_paths {
 6237                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6238                    .await
 6239                    .log_err();
 6240            }
 6241            if let Some(database_id) = database_id {
 6242                db.set_window_open_status(
 6243                    database_id,
 6244                    SerializedWindowBounds(window_bounds),
 6245                    display_uuid,
 6246                )
 6247                .await
 6248                .log_err();
 6249            } else {
 6250                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6251                    .await
 6252                    .log_err();
 6253            }
 6254        })
 6255    }
 6256
 6257    /// Bypass the 200ms serialization throttle and write workspace state to
 6258    /// the DB immediately. Returns a task the caller can await to ensure the
 6259    /// write completes. Used by the quit handler so the most recent state
 6260    /// isn't lost to a pending throttle timer when the process exits.
 6261    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6262        self._schedule_serialize_workspace.take();
 6263        self._serialize_workspace_task.take();
 6264        self.bounds_save_task_queued.take();
 6265
 6266        let bounds_task = self.save_window_bounds(window, cx);
 6267        let serialize_task = self.serialize_workspace_internal(window, cx);
 6268        cx.spawn(async move |_| {
 6269            bounds_task.await;
 6270            serialize_task.await;
 6271        })
 6272    }
 6273
 6274    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6275        let project = self.project().read(cx);
 6276        project
 6277            .visible_worktrees(cx)
 6278            .map(|worktree| worktree.read(cx).abs_path())
 6279            .collect::<Vec<_>>()
 6280    }
 6281
 6282    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6283        match member {
 6284            Member::Axis(PaneAxis { members, .. }) => {
 6285                for child in members.iter() {
 6286                    self.remove_panes(child.clone(), window, cx)
 6287                }
 6288            }
 6289            Member::Pane(pane) => {
 6290                self.force_remove_pane(&pane, &None, window, cx);
 6291            }
 6292        }
 6293    }
 6294
 6295    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6296        self.session_id.take();
 6297        self.serialize_workspace_internal(window, cx)
 6298    }
 6299
 6300    fn force_remove_pane(
 6301        &mut self,
 6302        pane: &Entity<Pane>,
 6303        focus_on: &Option<Entity<Pane>>,
 6304        window: &mut Window,
 6305        cx: &mut Context<Workspace>,
 6306    ) {
 6307        self.panes.retain(|p| p != pane);
 6308        if let Some(focus_on) = focus_on {
 6309            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6310        } else if self.active_pane() == pane {
 6311            self.panes
 6312                .last()
 6313                .unwrap()
 6314                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6315        }
 6316        if self.last_active_center_pane == Some(pane.downgrade()) {
 6317            self.last_active_center_pane = None;
 6318        }
 6319        cx.notify();
 6320    }
 6321
 6322    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6323        if self._schedule_serialize_workspace.is_none() {
 6324            self._schedule_serialize_workspace =
 6325                Some(cx.spawn_in(window, async move |this, cx| {
 6326                    cx.background_executor()
 6327                        .timer(SERIALIZATION_THROTTLE_TIME)
 6328                        .await;
 6329                    this.update_in(cx, |this, window, cx| {
 6330                        this._serialize_workspace_task =
 6331                            Some(this.serialize_workspace_internal(window, cx));
 6332                        this._schedule_serialize_workspace.take();
 6333                    })
 6334                    .log_err();
 6335                }));
 6336        }
 6337    }
 6338
 6339    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6340        let Some(database_id) = self.database_id() else {
 6341            return Task::ready(());
 6342        };
 6343
 6344        fn serialize_pane_handle(
 6345            pane_handle: &Entity<Pane>,
 6346            window: &mut Window,
 6347            cx: &mut App,
 6348        ) -> SerializedPane {
 6349            let (items, active, pinned_count) = {
 6350                let pane = pane_handle.read(cx);
 6351                let active_item_id = pane.active_item().map(|item| item.item_id());
 6352                (
 6353                    pane.items()
 6354                        .filter_map(|handle| {
 6355                            let handle = handle.to_serializable_item_handle(cx)?;
 6356
 6357                            Some(SerializedItem {
 6358                                kind: Arc::from(handle.serialized_item_kind()),
 6359                                item_id: handle.item_id().as_u64(),
 6360                                active: Some(handle.item_id()) == active_item_id,
 6361                                preview: pane.is_active_preview_item(handle.item_id()),
 6362                            })
 6363                        })
 6364                        .collect::<Vec<_>>(),
 6365                    pane.has_focus(window, cx),
 6366                    pane.pinned_count(),
 6367                )
 6368            };
 6369
 6370            SerializedPane::new(items, active, pinned_count)
 6371        }
 6372
 6373        fn build_serialized_pane_group(
 6374            pane_group: &Member,
 6375            window: &mut Window,
 6376            cx: &mut App,
 6377        ) -> SerializedPaneGroup {
 6378            match pane_group {
 6379                Member::Axis(PaneAxis {
 6380                    axis,
 6381                    members,
 6382                    flexes,
 6383                    bounding_boxes: _,
 6384                }) => SerializedPaneGroup::Group {
 6385                    axis: SerializedAxis(*axis),
 6386                    children: members
 6387                        .iter()
 6388                        .map(|member| build_serialized_pane_group(member, window, cx))
 6389                        .collect::<Vec<_>>(),
 6390                    flexes: Some(flexes.lock().clone()),
 6391                },
 6392                Member::Pane(pane_handle) => {
 6393                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6394                }
 6395            }
 6396        }
 6397
 6398        fn build_serialized_docks(
 6399            this: &Workspace,
 6400            window: &mut Window,
 6401            cx: &mut App,
 6402        ) -> DockStructure {
 6403            this.capture_dock_state(window, cx)
 6404        }
 6405
 6406        match self.workspace_location(cx) {
 6407            WorkspaceLocation::Location(location, paths) => {
 6408                let breakpoints = self.project.update(cx, |project, cx| {
 6409                    project
 6410                        .breakpoint_store()
 6411                        .read(cx)
 6412                        .all_source_breakpoints(cx)
 6413                });
 6414                let user_toolchains = self
 6415                    .project
 6416                    .read(cx)
 6417                    .user_toolchains(cx)
 6418                    .unwrap_or_default();
 6419
 6420                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6421                let docks = build_serialized_docks(self, window, cx);
 6422                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6423
 6424                let serialized_workspace = SerializedWorkspace {
 6425                    id: database_id,
 6426                    location,
 6427                    paths,
 6428                    center_group,
 6429                    window_bounds,
 6430                    display: Default::default(),
 6431                    docks,
 6432                    centered_layout: self.centered_layout,
 6433                    session_id: self.session_id.clone(),
 6434                    breakpoints,
 6435                    window_id: Some(window.window_handle().window_id().as_u64()),
 6436                    user_toolchains,
 6437                };
 6438
 6439                let db = WorkspaceDb::global(cx);
 6440                window.spawn(cx, async move |_| {
 6441                    db.save_workspace(serialized_workspace).await;
 6442                })
 6443            }
 6444            WorkspaceLocation::DetachFromSession => {
 6445                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6446                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6447                // Save dock state for empty local workspaces
 6448                let docks = build_serialized_docks(self, window, cx);
 6449                let db = WorkspaceDb::global(cx);
 6450                let kvp = db::kvp::KeyValueStore::global(cx);
 6451                window.spawn(cx, async move |_| {
 6452                    db.set_window_open_status(
 6453                        database_id,
 6454                        window_bounds,
 6455                        display.unwrap_or_default(),
 6456                    )
 6457                    .await
 6458                    .log_err();
 6459                    db.set_session_id(database_id, None).await.log_err();
 6460                    persistence::write_default_dock_state(&kvp, docks)
 6461                        .await
 6462                        .log_err();
 6463                })
 6464            }
 6465            WorkspaceLocation::None => {
 6466                // Save dock state for empty non-local workspaces
 6467                let docks = build_serialized_docks(self, window, cx);
 6468                let kvp = db::kvp::KeyValueStore::global(cx);
 6469                window.spawn(cx, async move |_| {
 6470                    persistence::write_default_dock_state(&kvp, docks)
 6471                        .await
 6472                        .log_err();
 6473                })
 6474            }
 6475        }
 6476    }
 6477
 6478    fn has_any_items_open(&self, cx: &App) -> bool {
 6479        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6480    }
 6481
 6482    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6483        let paths = PathList::new(&self.root_paths(cx));
 6484        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6485            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6486        } else if self.project.read(cx).is_local() {
 6487            if !paths.is_empty() || self.has_any_items_open(cx) {
 6488                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6489            } else {
 6490                WorkspaceLocation::DetachFromSession
 6491            }
 6492        } else {
 6493            WorkspaceLocation::None
 6494        }
 6495    }
 6496
 6497    fn update_history(&self, cx: &mut App) {
 6498        let Some(id) = self.database_id() else {
 6499            return;
 6500        };
 6501        if !self.project.read(cx).is_local() {
 6502            return;
 6503        }
 6504        if let Some(manager) = HistoryManager::global(cx) {
 6505            let paths = PathList::new(&self.root_paths(cx));
 6506            manager.update(cx, |this, cx| {
 6507                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6508            });
 6509        }
 6510    }
 6511
 6512    async fn serialize_items(
 6513        this: &WeakEntity<Self>,
 6514        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6515        cx: &mut AsyncWindowContext,
 6516    ) -> Result<()> {
 6517        const CHUNK_SIZE: usize = 200;
 6518
 6519        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6520
 6521        while let Some(items_received) = serializable_items.next().await {
 6522            let unique_items =
 6523                items_received
 6524                    .into_iter()
 6525                    .fold(HashMap::default(), |mut acc, item| {
 6526                        acc.entry(item.item_id()).or_insert(item);
 6527                        acc
 6528                    });
 6529
 6530            // We use into_iter() here so that the references to the items are moved into
 6531            // the tasks and not kept alive while we're sleeping.
 6532            for (_, item) in unique_items.into_iter() {
 6533                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6534                    item.serialize(workspace, false, window, cx)
 6535                }) {
 6536                    cx.background_spawn(async move { task.await.log_err() })
 6537                        .detach();
 6538                }
 6539            }
 6540
 6541            cx.background_executor()
 6542                .timer(SERIALIZATION_THROTTLE_TIME)
 6543                .await;
 6544        }
 6545
 6546        Ok(())
 6547    }
 6548
 6549    pub(crate) fn enqueue_item_serialization(
 6550        &mut self,
 6551        item: Box<dyn SerializableItemHandle>,
 6552    ) -> Result<()> {
 6553        self.serializable_items_tx
 6554            .unbounded_send(item)
 6555            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6556    }
 6557
 6558    pub(crate) fn load_workspace(
 6559        serialized_workspace: SerializedWorkspace,
 6560        paths_to_open: Vec<Option<ProjectPath>>,
 6561        window: &mut Window,
 6562        cx: &mut Context<Workspace>,
 6563    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6564        cx.spawn_in(window, async move |workspace, cx| {
 6565            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6566
 6567            let mut center_group = None;
 6568            let mut center_items = None;
 6569
 6570            // Traverse the splits tree and add to things
 6571            if let Some((group, active_pane, items)) = serialized_workspace
 6572                .center_group
 6573                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6574                .await
 6575            {
 6576                center_items = Some(items);
 6577                center_group = Some((group, active_pane))
 6578            }
 6579
 6580            let mut items_by_project_path = HashMap::default();
 6581            let mut item_ids_by_kind = HashMap::default();
 6582            let mut all_deserialized_items = Vec::default();
 6583            cx.update(|_, cx| {
 6584                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6585                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6586                        item_ids_by_kind
 6587                            .entry(serializable_item_handle.serialized_item_kind())
 6588                            .or_insert(Vec::new())
 6589                            .push(item.item_id().as_u64() as ItemId);
 6590                    }
 6591
 6592                    if let Some(project_path) = item.project_path(cx) {
 6593                        items_by_project_path.insert(project_path, item.clone());
 6594                    }
 6595                    all_deserialized_items.push(item);
 6596                }
 6597            })?;
 6598
 6599            let opened_items = paths_to_open
 6600                .into_iter()
 6601                .map(|path_to_open| {
 6602                    path_to_open
 6603                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6604                })
 6605                .collect::<Vec<_>>();
 6606
 6607            // Remove old panes from workspace panes list
 6608            workspace.update_in(cx, |workspace, window, cx| {
 6609                if let Some((center_group, active_pane)) = center_group {
 6610                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6611
 6612                    // Swap workspace center group
 6613                    workspace.center = PaneGroup::with_root(center_group);
 6614                    workspace.center.set_is_center(true);
 6615                    workspace.center.mark_positions(cx);
 6616
 6617                    if let Some(active_pane) = active_pane {
 6618                        workspace.set_active_pane(&active_pane, window, cx);
 6619                        cx.focus_self(window);
 6620                    } else {
 6621                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6622                    }
 6623                }
 6624
 6625                let docks = serialized_workspace.docks;
 6626
 6627                for (dock, serialized_dock) in [
 6628                    (&mut workspace.right_dock, docks.right),
 6629                    (&mut workspace.left_dock, docks.left),
 6630                    (&mut workspace.bottom_dock, docks.bottom),
 6631                ]
 6632                .iter_mut()
 6633                {
 6634                    dock.update(cx, |dock, cx| {
 6635                        dock.serialized_dock = Some(serialized_dock.clone());
 6636                        dock.restore_state(window, cx);
 6637                    });
 6638                }
 6639
 6640                cx.notify();
 6641            })?;
 6642
 6643            let _ = project
 6644                .update(cx, |project, cx| {
 6645                    project
 6646                        .breakpoint_store()
 6647                        .update(cx, |breakpoint_store, cx| {
 6648                            breakpoint_store
 6649                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6650                        })
 6651                })
 6652                .await;
 6653
 6654            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6655            // after loading the items, we might have different items and in order to avoid
 6656            // the database filling up, we delete items that haven't been loaded now.
 6657            //
 6658            // The items that have been loaded, have been saved after they've been added to the workspace.
 6659            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6660                item_ids_by_kind
 6661                    .into_iter()
 6662                    .map(|(item_kind, loaded_items)| {
 6663                        SerializableItemRegistry::cleanup(
 6664                            item_kind,
 6665                            serialized_workspace.id,
 6666                            loaded_items,
 6667                            window,
 6668                            cx,
 6669                        )
 6670                        .log_err()
 6671                    })
 6672                    .collect::<Vec<_>>()
 6673            })?;
 6674
 6675            futures::future::join_all(clean_up_tasks).await;
 6676
 6677            workspace
 6678                .update_in(cx, |workspace, window, cx| {
 6679                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6680                    workspace.serialize_workspace_internal(window, cx).detach();
 6681
 6682                    // Ensure that we mark the window as edited if we did load dirty items
 6683                    workspace.update_window_edited(window, cx);
 6684                })
 6685                .ok();
 6686
 6687            Ok(opened_items)
 6688        })
 6689    }
 6690
 6691    pub fn key_context(&self, cx: &App) -> KeyContext {
 6692        let mut context = KeyContext::new_with_defaults();
 6693        context.add("Workspace");
 6694        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6695        if let Some(status) = self
 6696            .debugger_provider
 6697            .as_ref()
 6698            .and_then(|provider| provider.active_thread_state(cx))
 6699        {
 6700            match status {
 6701                ThreadStatus::Running | ThreadStatus::Stepping => {
 6702                    context.add("debugger_running");
 6703                }
 6704                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6705                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6706            }
 6707        }
 6708
 6709        if self.left_dock.read(cx).is_open() {
 6710            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6711                context.set("left_dock", active_panel.panel_key());
 6712            }
 6713        }
 6714
 6715        if self.right_dock.read(cx).is_open() {
 6716            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6717                context.set("right_dock", active_panel.panel_key());
 6718            }
 6719        }
 6720
 6721        if self.bottom_dock.read(cx).is_open() {
 6722            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6723                context.set("bottom_dock", active_panel.panel_key());
 6724            }
 6725        }
 6726
 6727        context
 6728    }
 6729
 6730    /// Multiworkspace uses this to add workspace action handling to itself
 6731    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6732        self.add_workspace_actions_listeners(div, window, cx)
 6733            .on_action(cx.listener(
 6734                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6735                    for action in &action_sequence.0 {
 6736                        window.dispatch_action(action.boxed_clone(), cx);
 6737                    }
 6738                },
 6739            ))
 6740            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6741            .on_action(cx.listener(Self::close_all_items_and_panes))
 6742            .on_action(cx.listener(Self::close_item_in_all_panes))
 6743            .on_action(cx.listener(Self::save_all))
 6744            .on_action(cx.listener(Self::send_keystrokes))
 6745            .on_action(cx.listener(Self::add_folder_to_project))
 6746            .on_action(cx.listener(Self::follow_next_collaborator))
 6747            .on_action(cx.listener(Self::activate_pane_at_index))
 6748            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6749            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6750            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6751            .on_action(cx.listener(Self::toggle_theme_mode))
 6752            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6753                let pane = workspace.active_pane().clone();
 6754                workspace.unfollow_in_pane(&pane, window, cx);
 6755            }))
 6756            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6757                workspace
 6758                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6759                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6760            }))
 6761            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6762                workspace
 6763                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6764                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6765            }))
 6766            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6767                workspace
 6768                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6769                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6770            }))
 6771            .on_action(
 6772                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6773                    workspace.activate_previous_pane(window, cx)
 6774                }),
 6775            )
 6776            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6777                workspace.activate_next_pane(window, cx)
 6778            }))
 6779            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6780                workspace.activate_last_pane(window, cx)
 6781            }))
 6782            .on_action(
 6783                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6784                    workspace.activate_next_window(cx)
 6785                }),
 6786            )
 6787            .on_action(
 6788                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6789                    workspace.activate_previous_window(cx)
 6790                }),
 6791            )
 6792            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6793                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6794            }))
 6795            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6796                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6797            }))
 6798            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6799                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6800            }))
 6801            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6802                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6803            }))
 6804            .on_action(cx.listener(
 6805                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6806                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6807                },
 6808            ))
 6809            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6810                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6811            }))
 6812            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6813                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6814            }))
 6815            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6816                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6817            }))
 6818            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6819                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6820            }))
 6821            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6822                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6823                    SplitDirection::Down,
 6824                    SplitDirection::Up,
 6825                    SplitDirection::Right,
 6826                    SplitDirection::Left,
 6827                ];
 6828                for dir in DIRECTION_PRIORITY {
 6829                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6830                        workspace.swap_pane_in_direction(dir, cx);
 6831                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6832                        break;
 6833                    }
 6834                }
 6835            }))
 6836            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6837                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6838            }))
 6839            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6840                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6841            }))
 6842            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6843                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6844            }))
 6845            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6846                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6847            }))
 6848            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6849                this.toggle_dock(DockPosition::Left, window, cx);
 6850            }))
 6851            .on_action(cx.listener(
 6852                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6853                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6854                },
 6855            ))
 6856            .on_action(cx.listener(
 6857                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6858                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6859                },
 6860            ))
 6861            .on_action(cx.listener(
 6862                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6863                    if !workspace.close_active_dock(window, cx) {
 6864                        cx.propagate();
 6865                    }
 6866                },
 6867            ))
 6868            .on_action(
 6869                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6870                    workspace.close_all_docks(window, cx);
 6871                }),
 6872            )
 6873            .on_action(cx.listener(Self::toggle_all_docks))
 6874            .on_action(cx.listener(
 6875                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6876                    workspace.clear_all_notifications(cx);
 6877                },
 6878            ))
 6879            .on_action(cx.listener(
 6880                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6881                    workspace.clear_navigation_history(window, cx);
 6882                },
 6883            ))
 6884            .on_action(cx.listener(
 6885                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6886                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6887                        workspace.suppress_notification(&notification_id, cx);
 6888                    }
 6889                },
 6890            ))
 6891            .on_action(cx.listener(
 6892                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6893                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6894                },
 6895            ))
 6896            .on_action(
 6897                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6898                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6899                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6900                            trusted_worktrees.clear_trusted_paths()
 6901                        });
 6902                        let db = WorkspaceDb::global(cx);
 6903                        cx.spawn(async move |_, cx| {
 6904                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 6905                                cx.update(|cx| reload(cx));
 6906                            }
 6907                        })
 6908                        .detach();
 6909                    }
 6910                }),
 6911            )
 6912            .on_action(cx.listener(
 6913                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6914                    workspace.reopen_closed_item(window, cx).detach();
 6915                },
 6916            ))
 6917            .on_action(cx.listener(
 6918                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6919                    for dock in workspace.all_docks() {
 6920                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6921                            let panel = dock.read(cx).active_panel().cloned();
 6922                            if let Some(panel) = panel {
 6923                                dock.update(cx, |dock, cx| {
 6924                                    dock.set_panel_size_state(
 6925                                        panel.as_ref(),
 6926                                        dock::PanelSizeState::default(),
 6927                                        cx,
 6928                                    );
 6929                                });
 6930                            }
 6931                            return;
 6932                        }
 6933                    }
 6934                },
 6935            ))
 6936            .on_action(cx.listener(
 6937                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 6938                    for dock in workspace.all_docks() {
 6939                        let panel = dock.read(cx).visible_panel().cloned();
 6940                        if let Some(panel) = panel {
 6941                            dock.update(cx, |dock, cx| {
 6942                                dock.set_panel_size_state(
 6943                                    panel.as_ref(),
 6944                                    dock::PanelSizeState::default(),
 6945                                    cx,
 6946                                );
 6947                            });
 6948                        }
 6949                    }
 6950                },
 6951            ))
 6952            .on_action(cx.listener(
 6953                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6954                    adjust_active_dock_size_by_px(
 6955                        px_with_ui_font_fallback(act.px, cx),
 6956                        workspace,
 6957                        window,
 6958                        cx,
 6959                    );
 6960                },
 6961            ))
 6962            .on_action(cx.listener(
 6963                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6964                    adjust_active_dock_size_by_px(
 6965                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6966                        workspace,
 6967                        window,
 6968                        cx,
 6969                    );
 6970                },
 6971            ))
 6972            .on_action(cx.listener(
 6973                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6974                    adjust_open_docks_size_by_px(
 6975                        px_with_ui_font_fallback(act.px, cx),
 6976                        workspace,
 6977                        window,
 6978                        cx,
 6979                    );
 6980                },
 6981            ))
 6982            .on_action(cx.listener(
 6983                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6984                    adjust_open_docks_size_by_px(
 6985                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6986                        workspace,
 6987                        window,
 6988                        cx,
 6989                    );
 6990                },
 6991            ))
 6992            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6993            .on_action(cx.listener(
 6994                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6995                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6996                        let dock = active_dock.read(cx);
 6997                        if let Some(active_panel) = dock.active_panel() {
 6998                            if active_panel.pane(cx).is_none() {
 6999                                let mut recent_pane: Option<Entity<Pane>> = None;
 7000                                let mut recent_timestamp = 0;
 7001                                for pane_handle in workspace.panes() {
 7002                                    let pane = pane_handle.read(cx);
 7003                                    for entry in pane.activation_history() {
 7004                                        if entry.timestamp > recent_timestamp {
 7005                                            recent_timestamp = entry.timestamp;
 7006                                            recent_pane = Some(pane_handle.clone());
 7007                                        }
 7008                                    }
 7009                                }
 7010
 7011                                if let Some(pane) = recent_pane {
 7012                                    pane.update(cx, |pane, cx| {
 7013                                        let current_index = pane.active_item_index();
 7014                                        let items_len = pane.items_len();
 7015                                        if items_len > 0 {
 7016                                            let next_index = if current_index + 1 < items_len {
 7017                                                current_index + 1
 7018                                            } else {
 7019                                                0
 7020                                            };
 7021                                            pane.activate_item(
 7022                                                next_index, false, false, window, cx,
 7023                                            );
 7024                                        }
 7025                                    });
 7026                                    return;
 7027                                }
 7028                            }
 7029                        }
 7030                    }
 7031                    cx.propagate();
 7032                },
 7033            ))
 7034            .on_action(cx.listener(
 7035                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 7036                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7037                        let dock = active_dock.read(cx);
 7038                        if let Some(active_panel) = dock.active_panel() {
 7039                            if active_panel.pane(cx).is_none() {
 7040                                let mut recent_pane: Option<Entity<Pane>> = None;
 7041                                let mut recent_timestamp = 0;
 7042                                for pane_handle in workspace.panes() {
 7043                                    let pane = pane_handle.read(cx);
 7044                                    for entry in pane.activation_history() {
 7045                                        if entry.timestamp > recent_timestamp {
 7046                                            recent_timestamp = entry.timestamp;
 7047                                            recent_pane = Some(pane_handle.clone());
 7048                                        }
 7049                                    }
 7050                                }
 7051
 7052                                if let Some(pane) = recent_pane {
 7053                                    pane.update(cx, |pane, cx| {
 7054                                        let current_index = pane.active_item_index();
 7055                                        let items_len = pane.items_len();
 7056                                        if items_len > 0 {
 7057                                            let prev_index = if current_index > 0 {
 7058                                                current_index - 1
 7059                                            } else {
 7060                                                items_len.saturating_sub(1)
 7061                                            };
 7062                                            pane.activate_item(
 7063                                                prev_index, false, false, window, cx,
 7064                                            );
 7065                                        }
 7066                                    });
 7067                                    return;
 7068                                }
 7069                            }
 7070                        }
 7071                    }
 7072                    cx.propagate();
 7073                },
 7074            ))
 7075            .on_action(cx.listener(
 7076                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7077                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7078                        let dock = active_dock.read(cx);
 7079                        if let Some(active_panel) = dock.active_panel() {
 7080                            if active_panel.pane(cx).is_none() {
 7081                                let active_pane = workspace.active_pane().clone();
 7082                                active_pane.update(cx, |pane, cx| {
 7083                                    pane.close_active_item(action, window, cx)
 7084                                        .detach_and_log_err(cx);
 7085                                });
 7086                                return;
 7087                            }
 7088                        }
 7089                    }
 7090                    cx.propagate();
 7091                },
 7092            ))
 7093            .on_action(
 7094                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7095                    let pane = workspace.active_pane().clone();
 7096                    if let Some(item) = pane.read(cx).active_item() {
 7097                        item.toggle_read_only(window, cx);
 7098                    }
 7099                }),
 7100            )
 7101            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7102                workspace.focus_center_pane(window, cx);
 7103            }))
 7104            .on_action(cx.listener(Workspace::cancel))
 7105    }
 7106
 7107    #[cfg(any(test, feature = "test-support"))]
 7108    pub fn set_random_database_id(&mut self) {
 7109        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7110    }
 7111
 7112    #[cfg(any(test, feature = "test-support"))]
 7113    pub(crate) fn test_new(
 7114        project: Entity<Project>,
 7115        window: &mut Window,
 7116        cx: &mut Context<Self>,
 7117    ) -> Self {
 7118        use node_runtime::NodeRuntime;
 7119        use session::Session;
 7120
 7121        let client = project.read(cx).client();
 7122        let user_store = project.read(cx).user_store();
 7123        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7124        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7125        window.activate_window();
 7126        let app_state = Arc::new(AppState {
 7127            languages: project.read(cx).languages().clone(),
 7128            workspace_store,
 7129            client,
 7130            user_store,
 7131            fs: project.read(cx).fs().clone(),
 7132            build_window_options: |_, _| Default::default(),
 7133            node_runtime: NodeRuntime::unavailable(),
 7134            session,
 7135        });
 7136        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7137        workspace
 7138            .active_pane
 7139            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7140        workspace
 7141    }
 7142
 7143    pub fn register_action<A: Action>(
 7144        &mut self,
 7145        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7146    ) -> &mut Self {
 7147        let callback = Arc::new(callback);
 7148
 7149        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7150            let callback = callback.clone();
 7151            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7152                (callback)(workspace, event, window, cx)
 7153            }))
 7154        }));
 7155        self
 7156    }
 7157    pub fn register_action_renderer(
 7158        &mut self,
 7159        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7160    ) -> &mut Self {
 7161        self.workspace_actions.push(Box::new(callback));
 7162        self
 7163    }
 7164
 7165    fn add_workspace_actions_listeners(
 7166        &self,
 7167        mut div: Div,
 7168        window: &mut Window,
 7169        cx: &mut Context<Self>,
 7170    ) -> Div {
 7171        for action in self.workspace_actions.iter() {
 7172            div = (action)(div, self, window, cx)
 7173        }
 7174        div
 7175    }
 7176
 7177    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7178        self.modal_layer.read(cx).has_active_modal()
 7179    }
 7180
 7181    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7182        self.modal_layer
 7183            .read(cx)
 7184            .is_active_modal_command_palette(cx)
 7185    }
 7186
 7187    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7188        self.modal_layer.read(cx).active_modal()
 7189    }
 7190
 7191    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7192    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7193    /// If no modal is active, the new modal will be shown.
 7194    ///
 7195    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7196    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7197    /// will not be shown.
 7198    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7199    where
 7200        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7201    {
 7202        self.modal_layer.update(cx, |modal_layer, cx| {
 7203            modal_layer.toggle_modal(window, cx, build)
 7204        })
 7205    }
 7206
 7207    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7208        self.modal_layer
 7209            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7210    }
 7211
 7212    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7213        self.toast_layer
 7214            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7215    }
 7216
 7217    pub fn toggle_centered_layout(
 7218        &mut self,
 7219        _: &ToggleCenteredLayout,
 7220        _: &mut Window,
 7221        cx: &mut Context<Self>,
 7222    ) {
 7223        self.centered_layout = !self.centered_layout;
 7224        if let Some(database_id) = self.database_id() {
 7225            let db = WorkspaceDb::global(cx);
 7226            let centered_layout = self.centered_layout;
 7227            cx.background_spawn(async move {
 7228                db.set_centered_layout(database_id, centered_layout).await
 7229            })
 7230            .detach_and_log_err(cx);
 7231        }
 7232        cx.notify();
 7233    }
 7234
 7235    fn adjust_padding(padding: Option<f32>) -> f32 {
 7236        padding
 7237            .unwrap_or(CenteredPaddingSettings::default().0)
 7238            .clamp(
 7239                CenteredPaddingSettings::MIN_PADDING,
 7240                CenteredPaddingSettings::MAX_PADDING,
 7241            )
 7242    }
 7243
 7244    fn render_dock(
 7245        &self,
 7246        position: DockPosition,
 7247        dock: &Entity<Dock>,
 7248        window: &mut Window,
 7249        cx: &mut App,
 7250    ) -> Option<Div> {
 7251        if self.zoomed_position == Some(position) {
 7252            return None;
 7253        }
 7254
 7255        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7256            let pane = panel.pane(cx)?;
 7257            let follower_states = &self.follower_states;
 7258            leader_border_for_pane(follower_states, &pane, window, cx)
 7259        });
 7260
 7261        Some(
 7262            div()
 7263                .flex()
 7264                .flex_none()
 7265                .overflow_hidden()
 7266                .child(dock.clone())
 7267                .children(leader_border),
 7268        )
 7269    }
 7270
 7271    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7272        window
 7273            .root::<MultiWorkspace>()
 7274            .flatten()
 7275            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7276    }
 7277
 7278    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7279        self.zoomed.as_ref()
 7280    }
 7281
 7282    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7283        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7284            return;
 7285        };
 7286        let windows = cx.windows();
 7287        let next_window =
 7288            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7289                || {
 7290                    windows
 7291                        .iter()
 7292                        .cycle()
 7293                        .skip_while(|window| window.window_id() != current_window_id)
 7294                        .nth(1)
 7295                },
 7296            );
 7297
 7298        if let Some(window) = next_window {
 7299            window
 7300                .update(cx, |_, window, _| window.activate_window())
 7301                .ok();
 7302        }
 7303    }
 7304
 7305    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7306        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7307            return;
 7308        };
 7309        let windows = cx.windows();
 7310        let prev_window =
 7311            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7312                || {
 7313                    windows
 7314                        .iter()
 7315                        .rev()
 7316                        .cycle()
 7317                        .skip_while(|window| window.window_id() != current_window_id)
 7318                        .nth(1)
 7319                },
 7320            );
 7321
 7322        if let Some(window) = prev_window {
 7323            window
 7324                .update(cx, |_, window, _| window.activate_window())
 7325                .ok();
 7326        }
 7327    }
 7328
 7329    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7330        if cx.stop_active_drag(window) {
 7331        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7332            dismiss_app_notification(&notification_id, cx);
 7333        } else {
 7334            cx.propagate();
 7335        }
 7336    }
 7337
 7338    fn adjust_dock_size_by_px(
 7339        &mut self,
 7340        panel_size: Pixels,
 7341        dock_pos: DockPosition,
 7342        px: Pixels,
 7343        window: &mut Window,
 7344        cx: &mut Context<Self>,
 7345    ) {
 7346        match dock_pos {
 7347            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 7348            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 7349            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 7350        }
 7351    }
 7352
 7353    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7354        let workspace_width = self.bounds.size.width;
 7355        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7356
 7357        self.right_dock.read_with(cx, |right_dock, cx| {
 7358            let right_dock_size = right_dock
 7359                .stored_active_panel_size(window, cx)
 7360                .unwrap_or(Pixels::ZERO);
 7361            if right_dock_size + size > workspace_width {
 7362                size = workspace_width - right_dock_size
 7363            }
 7364        });
 7365
 7366        let ratio = self.flexible_dock_ratio_for_size(DockPosition::Left, size, window, cx);
 7367        self.left_dock.update(cx, |left_dock, cx| {
 7368            if WorkspaceSettings::get_global(cx)
 7369                .resize_all_panels_in_dock
 7370                .contains(&DockPosition::Left)
 7371            {
 7372                left_dock.resize_all_panels(Some(size), ratio, window, cx);
 7373            } else {
 7374                left_dock.resize_active_panel(Some(size), ratio, window, cx);
 7375            }
 7376        });
 7377    }
 7378
 7379    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7380        let workspace_width = self.bounds.size.width;
 7381        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7382        self.left_dock.read_with(cx, |left_dock, cx| {
 7383            let left_dock_size = left_dock
 7384                .stored_active_panel_size(window, cx)
 7385                .unwrap_or(Pixels::ZERO);
 7386            if left_dock_size + size > workspace_width {
 7387                size = workspace_width - left_dock_size
 7388            }
 7389        });
 7390        let ratio = self.flexible_dock_ratio_for_size(DockPosition::Right, size, window, cx);
 7391        self.right_dock.update(cx, |right_dock, cx| {
 7392            if WorkspaceSettings::get_global(cx)
 7393                .resize_all_panels_in_dock
 7394                .contains(&DockPosition::Right)
 7395            {
 7396                right_dock.resize_all_panels(Some(size), ratio, window, cx);
 7397            } else {
 7398                right_dock.resize_active_panel(Some(size), ratio, window, cx);
 7399            }
 7400        });
 7401    }
 7402
 7403    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7404        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7405        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7406            if WorkspaceSettings::get_global(cx)
 7407                .resize_all_panels_in_dock
 7408                .contains(&DockPosition::Bottom)
 7409            {
 7410                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7411            } else {
 7412                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7413            }
 7414        });
 7415    }
 7416
 7417    fn toggle_edit_predictions_all_files(
 7418        &mut self,
 7419        _: &ToggleEditPrediction,
 7420        _window: &mut Window,
 7421        cx: &mut Context<Self>,
 7422    ) {
 7423        let fs = self.project().read(cx).fs().clone();
 7424        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7425        update_settings_file(fs, cx, move |file, _| {
 7426            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7427        });
 7428    }
 7429
 7430    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7431        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7432        let next_mode = match current_mode {
 7433            Some(theme::ThemeAppearanceMode::Light) => theme::ThemeAppearanceMode::Dark,
 7434            Some(theme::ThemeAppearanceMode::Dark) => theme::ThemeAppearanceMode::Light,
 7435            Some(theme::ThemeAppearanceMode::System) | None => match cx.theme().appearance() {
 7436                theme::Appearance::Light => theme::ThemeAppearanceMode::Dark,
 7437                theme::Appearance::Dark => theme::ThemeAppearanceMode::Light,
 7438            },
 7439        };
 7440
 7441        let fs = self.project().read(cx).fs().clone();
 7442        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7443            theme::set_mode(settings, next_mode);
 7444        });
 7445    }
 7446
 7447    pub fn show_worktree_trust_security_modal(
 7448        &mut self,
 7449        toggle: bool,
 7450        window: &mut Window,
 7451        cx: &mut Context<Self>,
 7452    ) {
 7453        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7454            if toggle {
 7455                security_modal.update(cx, |security_modal, cx| {
 7456                    security_modal.dismiss(cx);
 7457                })
 7458            } else {
 7459                security_modal.update(cx, |security_modal, cx| {
 7460                    security_modal.refresh_restricted_paths(cx);
 7461                });
 7462            }
 7463        } else {
 7464            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7465                .map(|trusted_worktrees| {
 7466                    trusted_worktrees
 7467                        .read(cx)
 7468                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7469                })
 7470                .unwrap_or(false);
 7471            if has_restricted_worktrees {
 7472                let project = self.project().read(cx);
 7473                let remote_host = project
 7474                    .remote_connection_options(cx)
 7475                    .map(RemoteHostLocation::from);
 7476                let worktree_store = project.worktree_store().downgrade();
 7477                self.toggle_modal(window, cx, |_, cx| {
 7478                    SecurityModal::new(worktree_store, remote_host, cx)
 7479                });
 7480            }
 7481        }
 7482    }
 7483}
 7484
 7485pub trait AnyActiveCall {
 7486    fn entity(&self) -> AnyEntity;
 7487    fn is_in_room(&self, _: &App) -> bool;
 7488    fn room_id(&self, _: &App) -> Option<u64>;
 7489    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7490    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7491    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7492    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7493    fn is_sharing_project(&self, _: &App) -> bool;
 7494    fn has_remote_participants(&self, _: &App) -> bool;
 7495    fn local_participant_is_guest(&self, _: &App) -> bool;
 7496    fn client(&self, _: &App) -> Arc<Client>;
 7497    fn share_on_join(&self, _: &App) -> bool;
 7498    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7499    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7500    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7501    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7502    fn join_project(
 7503        &self,
 7504        _: u64,
 7505        _: Arc<LanguageRegistry>,
 7506        _: Arc<dyn Fs>,
 7507        _: &mut App,
 7508    ) -> Task<Result<Entity<Project>>>;
 7509    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7510    fn subscribe(
 7511        &self,
 7512        _: &mut Window,
 7513        _: &mut Context<Workspace>,
 7514        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7515    ) -> Subscription;
 7516    fn create_shared_screen(
 7517        &self,
 7518        _: PeerId,
 7519        _: &Entity<Pane>,
 7520        _: &mut Window,
 7521        _: &mut App,
 7522    ) -> Option<Entity<SharedScreen>>;
 7523}
 7524
 7525#[derive(Clone)]
 7526pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7527impl Global for GlobalAnyActiveCall {}
 7528
 7529impl GlobalAnyActiveCall {
 7530    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7531        cx.try_global()
 7532    }
 7533
 7534    pub(crate) fn global(cx: &App) -> &Self {
 7535        cx.global()
 7536    }
 7537}
 7538
 7539pub fn merge_conflict_notification_id() -> NotificationId {
 7540    struct MergeConflictNotification;
 7541    NotificationId::unique::<MergeConflictNotification>()
 7542}
 7543
 7544/// Workspace-local view of a remote participant's location.
 7545#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7546pub enum ParticipantLocation {
 7547    SharedProject { project_id: u64 },
 7548    UnsharedProject,
 7549    External,
 7550}
 7551
 7552impl ParticipantLocation {
 7553    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7554        match location
 7555            .and_then(|l| l.variant)
 7556            .context("participant location was not provided")?
 7557        {
 7558            proto::participant_location::Variant::SharedProject(project) => {
 7559                Ok(Self::SharedProject {
 7560                    project_id: project.id,
 7561                })
 7562            }
 7563            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7564            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7565        }
 7566    }
 7567}
 7568/// Workspace-local view of a remote collaborator's state.
 7569/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7570#[derive(Clone)]
 7571pub struct RemoteCollaborator {
 7572    pub user: Arc<User>,
 7573    pub peer_id: PeerId,
 7574    pub location: ParticipantLocation,
 7575    pub participant_index: ParticipantIndex,
 7576}
 7577
 7578pub enum ActiveCallEvent {
 7579    ParticipantLocationChanged { participant_id: PeerId },
 7580    RemoteVideoTracksChanged { participant_id: PeerId },
 7581}
 7582
 7583fn leader_border_for_pane(
 7584    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7585    pane: &Entity<Pane>,
 7586    _: &Window,
 7587    cx: &App,
 7588) -> Option<Div> {
 7589    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7590        if state.pane() == pane {
 7591            Some((*leader_id, state))
 7592        } else {
 7593            None
 7594        }
 7595    })?;
 7596
 7597    let mut leader_color = match leader_id {
 7598        CollaboratorId::PeerId(leader_peer_id) => {
 7599            let leader = GlobalAnyActiveCall::try_global(cx)?
 7600                .0
 7601                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7602
 7603            cx.theme()
 7604                .players()
 7605                .color_for_participant(leader.participant_index.0)
 7606                .cursor
 7607        }
 7608        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7609    };
 7610    leader_color.fade_out(0.3);
 7611    Some(
 7612        div()
 7613            .absolute()
 7614            .size_full()
 7615            .left_0()
 7616            .top_0()
 7617            .border_2()
 7618            .border_color(leader_color),
 7619    )
 7620}
 7621
 7622fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7623    ZED_WINDOW_POSITION
 7624        .zip(*ZED_WINDOW_SIZE)
 7625        .map(|(position, size)| Bounds {
 7626            origin: position,
 7627            size,
 7628        })
 7629}
 7630
 7631fn open_items(
 7632    serialized_workspace: Option<SerializedWorkspace>,
 7633    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7634    window: &mut Window,
 7635    cx: &mut Context<Workspace>,
 7636) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7637    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7638        Workspace::load_workspace(
 7639            serialized_workspace,
 7640            project_paths_to_open
 7641                .iter()
 7642                .map(|(_, project_path)| project_path)
 7643                .cloned()
 7644                .collect(),
 7645            window,
 7646            cx,
 7647        )
 7648    });
 7649
 7650    cx.spawn_in(window, async move |workspace, cx| {
 7651        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7652
 7653        if let Some(restored_items) = restored_items {
 7654            let restored_items = restored_items.await?;
 7655
 7656            let restored_project_paths = restored_items
 7657                .iter()
 7658                .filter_map(|item| {
 7659                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7660                        .ok()
 7661                        .flatten()
 7662                })
 7663                .collect::<HashSet<_>>();
 7664
 7665            for restored_item in restored_items {
 7666                opened_items.push(restored_item.map(Ok));
 7667            }
 7668
 7669            project_paths_to_open
 7670                .iter_mut()
 7671                .for_each(|(_, project_path)| {
 7672                    if let Some(project_path_to_open) = project_path
 7673                        && restored_project_paths.contains(project_path_to_open)
 7674                    {
 7675                        *project_path = None;
 7676                    }
 7677                });
 7678        } else {
 7679            for _ in 0..project_paths_to_open.len() {
 7680                opened_items.push(None);
 7681            }
 7682        }
 7683        assert!(opened_items.len() == project_paths_to_open.len());
 7684
 7685        let tasks =
 7686            project_paths_to_open
 7687                .into_iter()
 7688                .enumerate()
 7689                .map(|(ix, (abs_path, project_path))| {
 7690                    let workspace = workspace.clone();
 7691                    cx.spawn(async move |cx| {
 7692                        let file_project_path = project_path?;
 7693                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7694                            workspace.project().update(cx, |project, cx| {
 7695                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7696                            })
 7697                        });
 7698
 7699                        // We only want to open file paths here. If one of the items
 7700                        // here is a directory, it was already opened further above
 7701                        // with a `find_or_create_worktree`.
 7702                        if let Ok(task) = abs_path_task
 7703                            && task.await.is_none_or(|p| p.is_file())
 7704                        {
 7705                            return Some((
 7706                                ix,
 7707                                workspace
 7708                                    .update_in(cx, |workspace, window, cx| {
 7709                                        workspace.open_path(
 7710                                            file_project_path,
 7711                                            None,
 7712                                            true,
 7713                                            window,
 7714                                            cx,
 7715                                        )
 7716                                    })
 7717                                    .log_err()?
 7718                                    .await,
 7719                            ));
 7720                        }
 7721                        None
 7722                    })
 7723                });
 7724
 7725        let tasks = tasks.collect::<Vec<_>>();
 7726
 7727        let tasks = futures::future::join_all(tasks);
 7728        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7729            opened_items[ix] = Some(path_open_result);
 7730        }
 7731
 7732        Ok(opened_items)
 7733    })
 7734}
 7735
 7736#[derive(Clone)]
 7737enum ActivateInDirectionTarget {
 7738    Pane(Entity<Pane>),
 7739    Dock(Entity<Dock>),
 7740    Sidebar(FocusHandle),
 7741}
 7742
 7743fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7744    window
 7745        .update(cx, |multi_workspace, _, cx| {
 7746            let workspace = multi_workspace.workspace().clone();
 7747            workspace.update(cx, |workspace, cx| {
 7748                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7749                    struct DatabaseFailedNotification;
 7750
 7751                    workspace.show_notification(
 7752                        NotificationId::unique::<DatabaseFailedNotification>(),
 7753                        cx,
 7754                        |cx| {
 7755                            cx.new(|cx| {
 7756                                MessageNotification::new("Failed to load the database file.", cx)
 7757                                    .primary_message("File an Issue")
 7758                                    .primary_icon(IconName::Plus)
 7759                                    .primary_on_click(|window, cx| {
 7760                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7761                                    })
 7762                            })
 7763                        },
 7764                    );
 7765                }
 7766            });
 7767        })
 7768        .log_err();
 7769}
 7770
 7771fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7772    if val == 0 {
 7773        ThemeSettings::get_global(cx).ui_font_size(cx)
 7774    } else {
 7775        px(val as f32)
 7776    }
 7777}
 7778
 7779fn adjust_active_dock_size_by_px(
 7780    px: Pixels,
 7781    workspace: &mut Workspace,
 7782    window: &mut Window,
 7783    cx: &mut Context<Workspace>,
 7784) {
 7785    let Some(active_dock) = workspace
 7786        .all_docks()
 7787        .into_iter()
 7788        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7789    else {
 7790        return;
 7791    };
 7792    let dock = active_dock.read(cx);
 7793    let Some(panel_size) = dock
 7794        .active_panel()
 7795        .map(|panel| workspace.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx))
 7796    else {
 7797        return;
 7798    };
 7799    let dock_pos = dock.position();
 7800    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7801}
 7802
 7803fn adjust_open_docks_size_by_px(
 7804    px: Pixels,
 7805    workspace: &mut Workspace,
 7806    window: &mut Window,
 7807    cx: &mut Context<Workspace>,
 7808) {
 7809    let docks = workspace
 7810        .all_docks()
 7811        .into_iter()
 7812        .filter_map(|dock_entity| {
 7813            let dock = dock_entity.read(cx);
 7814            if dock.is_open() {
 7815                let panel_size = dock.active_panel().map(|panel| {
 7816                    workspace.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx)
 7817                })?;
 7818                let dock_pos = dock.position();
 7819                Some((panel_size, dock_pos, px))
 7820            } else {
 7821                None
 7822            }
 7823        })
 7824        .collect::<Vec<_>>();
 7825
 7826    docks
 7827        .into_iter()
 7828        .for_each(|(panel_size, dock_pos, offset)| {
 7829            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7830        });
 7831}
 7832
 7833impl Focusable for Workspace {
 7834    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7835        self.active_pane.focus_handle(cx)
 7836    }
 7837}
 7838
 7839#[derive(Clone)]
 7840struct DraggedDock(DockPosition);
 7841
 7842impl Render for DraggedDock {
 7843    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7844        gpui::Empty
 7845    }
 7846}
 7847
 7848impl Render for Workspace {
 7849    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7850        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7851        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7852            log::info!("Rendered first frame");
 7853        }
 7854
 7855        let centered_layout = self.centered_layout
 7856            && self.center.panes().len() == 1
 7857            && self.active_item(cx).is_some();
 7858        let render_padding = |size| {
 7859            (size > 0.0).then(|| {
 7860                div()
 7861                    .h_full()
 7862                    .w(relative(size))
 7863                    .bg(cx.theme().colors().editor_background)
 7864                    .border_color(cx.theme().colors().pane_group_border)
 7865            })
 7866        };
 7867        let paddings = if centered_layout {
 7868            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7869            (
 7870                render_padding(Self::adjust_padding(
 7871                    settings.left_padding.map(|padding| padding.0),
 7872                )),
 7873                render_padding(Self::adjust_padding(
 7874                    settings.right_padding.map(|padding| padding.0),
 7875                )),
 7876            )
 7877        } else {
 7878            (None, None)
 7879        };
 7880        let ui_font = theme::setup_ui_font(window, cx);
 7881
 7882        let theme = cx.theme().clone();
 7883        let colors = theme.colors();
 7884        let notification_entities = self
 7885            .notifications
 7886            .iter()
 7887            .map(|(_, notification)| notification.entity_id())
 7888            .collect::<Vec<_>>();
 7889        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7890
 7891        div()
 7892            .relative()
 7893            .size_full()
 7894            .flex()
 7895            .flex_col()
 7896            .font(ui_font)
 7897            .gap_0()
 7898                .justify_start()
 7899                .items_start()
 7900                .text_color(colors.text)
 7901                .overflow_hidden()
 7902                .children(self.titlebar_item.clone())
 7903                .on_modifiers_changed(move |_, _, cx| {
 7904                    for &id in &notification_entities {
 7905                        cx.notify(id);
 7906                    }
 7907                })
 7908                .child(
 7909                    div()
 7910                        .size_full()
 7911                        .relative()
 7912                        .flex_1()
 7913                        .flex()
 7914                        .flex_col()
 7915                        .child(
 7916                            div()
 7917                                .id("workspace")
 7918                                .bg(colors.background)
 7919                                .relative()
 7920                                .flex_1()
 7921                                .w_full()
 7922                                .flex()
 7923                                .flex_col()
 7924                                .overflow_hidden()
 7925                                .border_t_1()
 7926                                .border_b_1()
 7927                                .border_color(colors.border)
 7928                                .child({
 7929                                    let this = cx.entity();
 7930                                    canvas(
 7931                                        move |bounds, window, cx| {
 7932                                            this.update(cx, |this, cx| {
 7933                                                let bounds_changed = this.bounds != bounds;
 7934                                                this.bounds = bounds;
 7935
 7936                                                if bounds_changed {
 7937                                                    this.left_dock.update(cx, |dock, cx| {
 7938                                                        dock.clamp_panel_size(
 7939                                                            bounds.size.width,
 7940                                                            window,
 7941                                                            cx,
 7942                                                        )
 7943                                                    });
 7944
 7945                                                    this.right_dock.update(cx, |dock, cx| {
 7946                                                        dock.clamp_panel_size(
 7947                                                            bounds.size.width,
 7948                                                            window,
 7949                                                            cx,
 7950                                                        )
 7951                                                    });
 7952
 7953                                                    this.bottom_dock.update(cx, |dock, cx| {
 7954                                                        dock.clamp_panel_size(
 7955                                                            bounds.size.height,
 7956                                                            window,
 7957                                                            cx,
 7958                                                        )
 7959                                                    });
 7960                                                }
 7961                                            })
 7962                                        },
 7963                                        |_, _, _, _| {},
 7964                                    )
 7965                                    .absolute()
 7966                                    .size_full()
 7967                                })
 7968                                .when(self.zoomed.is_none(), |this| {
 7969                                    this.on_drag_move(cx.listener(
 7970                                        move |workspace,
 7971                                              e: &DragMoveEvent<DraggedDock>,
 7972                                              window,
 7973                                              cx| {
 7974                                            if workspace.previous_dock_drag_coordinates
 7975                                                != Some(e.event.position)
 7976                                            {
 7977                                                workspace.previous_dock_drag_coordinates =
 7978                                                    Some(e.event.position);
 7979
 7980                                                match e.drag(cx).0 {
 7981                                                    DockPosition::Left => {
 7982                                                        workspace.resize_left_dock(
 7983                                                            e.event.position.x
 7984                                                                - workspace.bounds.left(),
 7985                                                            window,
 7986                                                            cx,
 7987                                                        );
 7988                                                    }
 7989                                                    DockPosition::Right => {
 7990                                                        workspace.resize_right_dock(
 7991                                                            workspace.bounds.right()
 7992                                                                - e.event.position.x,
 7993                                                            window,
 7994                                                            cx,
 7995                                                        );
 7996                                                    }
 7997                                                    DockPosition::Bottom => {
 7998                                                        workspace.resize_bottom_dock(
 7999                                                            workspace.bounds.bottom()
 8000                                                                - e.event.position.y,
 8001                                                            window,
 8002                                                            cx,
 8003                                                        );
 8004                                                    }
 8005                                                };
 8006                                                workspace.serialize_workspace(window, cx);
 8007                                            }
 8008                                        },
 8009                                    ))
 8010
 8011                                })
 8012                                .child({
 8013                                    match bottom_dock_layout {
 8014                                        BottomDockLayout::Full => div()
 8015                                            .flex()
 8016                                            .flex_col()
 8017                                            .h_full()
 8018                                            .child(
 8019                                                div()
 8020                                                    .flex()
 8021                                                    .flex_row()
 8022                                                    .flex_1()
 8023                                                    .overflow_hidden()
 8024                                                    .children(self.render_dock(
 8025                                                        DockPosition::Left,
 8026                                                        &self.left_dock,
 8027                                                        window,
 8028                                                        cx,
 8029                                                    ))
 8030
 8031                                                    .child(
 8032                                                        div()
 8033                                                            .flex()
 8034                                                            .flex_col()
 8035                                                            .flex_1()
 8036                                                            .overflow_hidden()
 8037                                                            .child(
 8038                                                                h_flex()
 8039                                                                    .flex_1()
 8040                                                                    .when_some(
 8041                                                                        paddings.0,
 8042                                                                        |this, p| {
 8043                                                                            this.child(
 8044                                                                                p.border_r_1(),
 8045                                                                            )
 8046                                                                        },
 8047                                                                    )
 8048                                                                    .child(self.center.render(
 8049                                                                        self.zoomed.as_ref(),
 8050                                                                        &PaneRenderContext {
 8051                                                                            follower_states:
 8052                                                                                &self.follower_states,
 8053                                                                            active_call: self.active_call(),
 8054                                                                            active_pane: &self.active_pane,
 8055                                                                            app_state: &self.app_state,
 8056                                                                            project: &self.project,
 8057                                                                            workspace: &self.weak_self,
 8058                                                                        },
 8059                                                                        window,
 8060                                                                        cx,
 8061                                                                    ))
 8062                                                                    .when_some(
 8063                                                                        paddings.1,
 8064                                                                        |this, p| {
 8065                                                                            this.child(
 8066                                                                                p.border_l_1(),
 8067                                                                            )
 8068                                                                        },
 8069                                                                    ),
 8070                                                            ),
 8071                                                    )
 8072
 8073                                                    .children(self.render_dock(
 8074                                                        DockPosition::Right,
 8075                                                        &self.right_dock,
 8076                                                        window,
 8077                                                        cx,
 8078                                                    )),
 8079                                            )
 8080                                            .child(div().w_full().children(self.render_dock(
 8081                                                DockPosition::Bottom,
 8082                                                &self.bottom_dock,
 8083                                                window,
 8084                                                cx
 8085                                            ))),
 8086
 8087                                        BottomDockLayout::LeftAligned => div()
 8088                                            .flex()
 8089                                            .flex_row()
 8090                                            .h_full()
 8091                                            .child(
 8092                                                div()
 8093                                                    .flex()
 8094                                                    .flex_col()
 8095                                                    .flex_1()
 8096                                                    .h_full()
 8097                                                    .child(
 8098                                                        div()
 8099                                                            .flex()
 8100                                                            .flex_row()
 8101                                                            .flex_1()
 8102                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8103
 8104                                                            .child(
 8105                                                                div()
 8106                                                                    .flex()
 8107                                                                    .flex_col()
 8108                                                                    .flex_1()
 8109                                                                    .overflow_hidden()
 8110                                                                    .child(
 8111                                                                        h_flex()
 8112                                                                            .flex_1()
 8113                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8114                                                                            .child(self.center.render(
 8115                                                                                self.zoomed.as_ref(),
 8116                                                                                &PaneRenderContext {
 8117                                                                                    follower_states:
 8118                                                                                        &self.follower_states,
 8119                                                                                    active_call: self.active_call(),
 8120                                                                                    active_pane: &self.active_pane,
 8121                                                                                    app_state: &self.app_state,
 8122                                                                                    project: &self.project,
 8123                                                                                    workspace: &self.weak_self,
 8124                                                                                },
 8125                                                                                window,
 8126                                                                                cx,
 8127                                                                            ))
 8128                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8129                                                                    )
 8130                                                            )
 8131
 8132                                                    )
 8133                                                    .child(
 8134                                                        div()
 8135                                                            .w_full()
 8136                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8137                                                    ),
 8138                                            )
 8139                                            .children(self.render_dock(
 8140                                                DockPosition::Right,
 8141                                                &self.right_dock,
 8142                                                window,
 8143                                                cx,
 8144                                            )),
 8145                                        BottomDockLayout::RightAligned => div()
 8146                                            .flex()
 8147                                            .flex_row()
 8148                                            .h_full()
 8149                                            .children(self.render_dock(
 8150                                                DockPosition::Left,
 8151                                                &self.left_dock,
 8152                                                window,
 8153                                                cx,
 8154                                            ))
 8155
 8156                                            .child(
 8157                                                div()
 8158                                                    .flex()
 8159                                                    .flex_col()
 8160                                                    .flex_1()
 8161                                                    .h_full()
 8162                                                    .child(
 8163                                                        div()
 8164                                                            .flex()
 8165                                                            .flex_row()
 8166                                                            .flex_1()
 8167                                                            .child(
 8168                                                                div()
 8169                                                                    .flex()
 8170                                                                    .flex_col()
 8171                                                                    .flex_1()
 8172                                                                    .overflow_hidden()
 8173                                                                    .child(
 8174                                                                        h_flex()
 8175                                                                            .flex_1()
 8176                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8177                                                                            .child(self.center.render(
 8178                                                                                self.zoomed.as_ref(),
 8179                                                                                &PaneRenderContext {
 8180                                                                                    follower_states:
 8181                                                                                        &self.follower_states,
 8182                                                                                    active_call: self.active_call(),
 8183                                                                                    active_pane: &self.active_pane,
 8184                                                                                    app_state: &self.app_state,
 8185                                                                                    project: &self.project,
 8186                                                                                    workspace: &self.weak_self,
 8187                                                                                },
 8188                                                                                window,
 8189                                                                                cx,
 8190                                                                            ))
 8191                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8192                                                                    )
 8193                                                            )
 8194
 8195                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8196                                                    )
 8197                                                    .child(
 8198                                                        div()
 8199                                                            .w_full()
 8200                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8201                                                    ),
 8202                                            ),
 8203                                        BottomDockLayout::Contained => div()
 8204                                            .flex()
 8205                                            .flex_row()
 8206                                            .h_full()
 8207                                            .children(self.render_dock(
 8208                                                DockPosition::Left,
 8209                                                &self.left_dock,
 8210                                                window,
 8211                                                cx,
 8212                                            ))
 8213
 8214                                            .child(
 8215                                                div()
 8216                                                    .flex()
 8217                                                    .flex_col()
 8218                                                    .flex_1()
 8219                                                    .overflow_hidden()
 8220                                                    .child(
 8221                                                        h_flex()
 8222                                                            .flex_1()
 8223                                                            .when_some(paddings.0, |this, p| {
 8224                                                                this.child(p.border_r_1())
 8225                                                            })
 8226                                                            .child(self.center.render(
 8227                                                                self.zoomed.as_ref(),
 8228                                                                &PaneRenderContext {
 8229                                                                    follower_states:
 8230                                                                        &self.follower_states,
 8231                                                                    active_call: self.active_call(),
 8232                                                                    active_pane: &self.active_pane,
 8233                                                                    app_state: &self.app_state,
 8234                                                                    project: &self.project,
 8235                                                                    workspace: &self.weak_self,
 8236                                                                },
 8237                                                                window,
 8238                                                                cx,
 8239                                                            ))
 8240                                                            .when_some(paddings.1, |this, p| {
 8241                                                                this.child(p.border_l_1())
 8242                                                            }),
 8243                                                    )
 8244                                                    .children(self.render_dock(
 8245                                                        DockPosition::Bottom,
 8246                                                        &self.bottom_dock,
 8247                                                        window,
 8248                                                        cx,
 8249                                                    )),
 8250                                            )
 8251
 8252                                            .children(self.render_dock(
 8253                                                DockPosition::Right,
 8254                                                &self.right_dock,
 8255                                                window,
 8256                                                cx,
 8257                                            )),
 8258                                    }
 8259                                })
 8260                                .children(self.zoomed.as_ref().and_then(|view| {
 8261                                    let zoomed_view = view.upgrade()?;
 8262                                    let div = div()
 8263                                        .occlude()
 8264                                        .absolute()
 8265                                        .overflow_hidden()
 8266                                        .border_color(colors.border)
 8267                                        .bg(colors.background)
 8268                                        .child(zoomed_view)
 8269                                        .inset_0()
 8270                                        .shadow_lg();
 8271
 8272                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8273                                       return Some(div);
 8274                                    }
 8275
 8276                                    Some(match self.zoomed_position {
 8277                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8278                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8279                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8280                                        None => {
 8281                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8282                                        }
 8283                                    })
 8284                                }))
 8285                                .children(self.render_notifications(window, cx)),
 8286                        )
 8287                        .when(self.status_bar_visible(cx), |parent| {
 8288                            parent.child(self.status_bar.clone())
 8289                        })
 8290                        .child(self.toast_layer.clone()),
 8291                )
 8292    }
 8293}
 8294
 8295impl WorkspaceStore {
 8296    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8297        Self {
 8298            workspaces: Default::default(),
 8299            _subscriptions: vec![
 8300                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8301                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8302            ],
 8303            client,
 8304        }
 8305    }
 8306
 8307    pub fn update_followers(
 8308        &self,
 8309        project_id: Option<u64>,
 8310        update: proto::update_followers::Variant,
 8311        cx: &App,
 8312    ) -> Option<()> {
 8313        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8314        let room_id = active_call.0.room_id(cx)?;
 8315        self.client
 8316            .send(proto::UpdateFollowers {
 8317                room_id,
 8318                project_id,
 8319                variant: Some(update),
 8320            })
 8321            .log_err()
 8322    }
 8323
 8324    pub async fn handle_follow(
 8325        this: Entity<Self>,
 8326        envelope: TypedEnvelope<proto::Follow>,
 8327        mut cx: AsyncApp,
 8328    ) -> Result<proto::FollowResponse> {
 8329        this.update(&mut cx, |this, cx| {
 8330            let follower = Follower {
 8331                project_id: envelope.payload.project_id,
 8332                peer_id: envelope.original_sender_id()?,
 8333            };
 8334
 8335            let mut response = proto::FollowResponse::default();
 8336
 8337            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8338                let Some(workspace) = weak_workspace.upgrade() else {
 8339                    return false;
 8340                };
 8341                window_handle
 8342                    .update(cx, |_, window, cx| {
 8343                        workspace.update(cx, |workspace, cx| {
 8344                            let handler_response =
 8345                                workspace.handle_follow(follower.project_id, window, cx);
 8346                            if let Some(active_view) = handler_response.active_view
 8347                                && workspace.project.read(cx).remote_id() == follower.project_id
 8348                            {
 8349                                response.active_view = Some(active_view)
 8350                            }
 8351                        });
 8352                    })
 8353                    .is_ok()
 8354            });
 8355
 8356            Ok(response)
 8357        })
 8358    }
 8359
 8360    async fn handle_update_followers(
 8361        this: Entity<Self>,
 8362        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8363        mut cx: AsyncApp,
 8364    ) -> Result<()> {
 8365        let leader_id = envelope.original_sender_id()?;
 8366        let update = envelope.payload;
 8367
 8368        this.update(&mut cx, |this, cx| {
 8369            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8370                let Some(workspace) = weak_workspace.upgrade() else {
 8371                    return false;
 8372                };
 8373                window_handle
 8374                    .update(cx, |_, window, cx| {
 8375                        workspace.update(cx, |workspace, cx| {
 8376                            let project_id = workspace.project.read(cx).remote_id();
 8377                            if update.project_id != project_id && update.project_id.is_some() {
 8378                                return;
 8379                            }
 8380                            workspace.handle_update_followers(
 8381                                leader_id,
 8382                                update.clone(),
 8383                                window,
 8384                                cx,
 8385                            );
 8386                        });
 8387                    })
 8388                    .is_ok()
 8389            });
 8390            Ok(())
 8391        })
 8392    }
 8393
 8394    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8395        self.workspaces.iter().map(|(_, weak)| weak)
 8396    }
 8397
 8398    pub fn workspaces_with_windows(
 8399        &self,
 8400    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8401        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8402    }
 8403}
 8404
 8405impl ViewId {
 8406    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8407        Ok(Self {
 8408            creator: message
 8409                .creator
 8410                .map(CollaboratorId::PeerId)
 8411                .context("creator is missing")?,
 8412            id: message.id,
 8413        })
 8414    }
 8415
 8416    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8417        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8418            Some(proto::ViewId {
 8419                creator: Some(peer_id),
 8420                id: self.id,
 8421            })
 8422        } else {
 8423            None
 8424        }
 8425    }
 8426}
 8427
 8428impl FollowerState {
 8429    fn pane(&self) -> &Entity<Pane> {
 8430        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8431    }
 8432}
 8433
 8434pub trait WorkspaceHandle {
 8435    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8436}
 8437
 8438impl WorkspaceHandle for Entity<Workspace> {
 8439    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8440        self.read(cx)
 8441            .worktrees(cx)
 8442            .flat_map(|worktree| {
 8443                let worktree_id = worktree.read(cx).id();
 8444                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8445                    worktree_id,
 8446                    path: f.path.clone(),
 8447                })
 8448            })
 8449            .collect::<Vec<_>>()
 8450    }
 8451}
 8452
 8453pub async fn last_opened_workspace_location(
 8454    db: &WorkspaceDb,
 8455    fs: &dyn fs::Fs,
 8456) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8457    db.last_workspace(fs)
 8458        .await
 8459        .log_err()
 8460        .flatten()
 8461        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8462}
 8463
 8464pub async fn last_session_workspace_locations(
 8465    db: &WorkspaceDb,
 8466    last_session_id: &str,
 8467    last_session_window_stack: Option<Vec<WindowId>>,
 8468    fs: &dyn fs::Fs,
 8469) -> Option<Vec<SessionWorkspace>> {
 8470    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8471        .await
 8472        .log_err()
 8473}
 8474
 8475pub struct MultiWorkspaceRestoreResult {
 8476    pub window_handle: WindowHandle<MultiWorkspace>,
 8477    pub errors: Vec<anyhow::Error>,
 8478}
 8479
 8480pub async fn restore_multiworkspace(
 8481    multi_workspace: SerializedMultiWorkspace,
 8482    app_state: Arc<AppState>,
 8483    cx: &mut AsyncApp,
 8484) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 8485    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 8486    let mut group_iter = workspaces.into_iter();
 8487    let first = group_iter
 8488        .next()
 8489        .context("window group must not be empty")?;
 8490
 8491    let window_handle = if first.paths.is_empty() {
 8492        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 8493            .await?
 8494    } else {
 8495        let OpenResult { window, .. } = cx
 8496            .update(|cx| {
 8497                Workspace::new_local(
 8498                    first.paths.paths().to_vec(),
 8499                    app_state.clone(),
 8500                    None,
 8501                    None,
 8502                    None,
 8503                    true,
 8504                    cx,
 8505                )
 8506            })
 8507            .await?;
 8508        window
 8509    };
 8510
 8511    let mut errors = Vec::new();
 8512
 8513    for session_workspace in group_iter {
 8514        let error = if session_workspace.paths.is_empty() {
 8515            cx.update(|cx| {
 8516                open_workspace_by_id(
 8517                    session_workspace.workspace_id,
 8518                    app_state.clone(),
 8519                    Some(window_handle),
 8520                    cx,
 8521                )
 8522            })
 8523            .await
 8524            .err()
 8525        } else {
 8526            cx.update(|cx| {
 8527                Workspace::new_local(
 8528                    session_workspace.paths.paths().to_vec(),
 8529                    app_state.clone(),
 8530                    Some(window_handle),
 8531                    None,
 8532                    None,
 8533                    false,
 8534                    cx,
 8535                )
 8536            })
 8537            .await
 8538            .err()
 8539        };
 8540
 8541        if let Some(error) = error {
 8542            errors.push(error);
 8543        }
 8544    }
 8545
 8546    if let Some(target_id) = state.active_workspace_id {
 8547        window_handle
 8548            .update(cx, |multi_workspace, window, cx| {
 8549                let target_index = multi_workspace
 8550                    .workspaces()
 8551                    .iter()
 8552                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8553                if let Some(index) = target_index {
 8554                    multi_workspace.activate_index(index, window, cx);
 8555                } else if !multi_workspace.workspaces().is_empty() {
 8556                    multi_workspace.activate_index(0, window, cx);
 8557                }
 8558            })
 8559            .ok();
 8560    } else {
 8561        window_handle
 8562            .update(cx, |multi_workspace, window, cx| {
 8563                if !multi_workspace.workspaces().is_empty() {
 8564                    multi_workspace.activate_index(0, window, cx);
 8565                }
 8566            })
 8567            .ok();
 8568    }
 8569
 8570    if state.sidebar_open {
 8571        window_handle
 8572            .update(cx, |multi_workspace, _, cx| {
 8573                multi_workspace.open_sidebar(cx);
 8574            })
 8575            .ok();
 8576    }
 8577
 8578    window_handle
 8579        .update(cx, |_, window, _cx| {
 8580            window.activate_window();
 8581        })
 8582        .ok();
 8583
 8584    Ok(MultiWorkspaceRestoreResult {
 8585        window_handle,
 8586        errors,
 8587    })
 8588}
 8589
 8590actions!(
 8591    collab,
 8592    [
 8593        /// Opens the channel notes for the current call.
 8594        ///
 8595        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8596        /// channel in the collab panel.
 8597        ///
 8598        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8599        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8600        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8601        OpenChannelNotes,
 8602        /// Mutes your microphone.
 8603        Mute,
 8604        /// Deafens yourself (mute both microphone and speakers).
 8605        Deafen,
 8606        /// Leaves the current call.
 8607        LeaveCall,
 8608        /// Shares the current project with collaborators.
 8609        ShareProject,
 8610        /// Shares your screen with collaborators.
 8611        ScreenShare,
 8612        /// Copies the current room name and session id for debugging purposes.
 8613        CopyRoomId,
 8614    ]
 8615);
 8616
 8617/// Opens the channel notes for a specific channel by its ID.
 8618#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8619#[action(namespace = collab)]
 8620#[serde(deny_unknown_fields)]
 8621pub struct OpenChannelNotesById {
 8622    pub channel_id: u64,
 8623}
 8624
 8625actions!(
 8626    zed,
 8627    [
 8628        /// Opens the Zed log file.
 8629        OpenLog,
 8630        /// Reveals the Zed log file in the system file manager.
 8631        RevealLogInFileManager
 8632    ]
 8633);
 8634
 8635async fn join_channel_internal(
 8636    channel_id: ChannelId,
 8637    app_state: &Arc<AppState>,
 8638    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8639    requesting_workspace: Option<WeakEntity<Workspace>>,
 8640    active_call: &dyn AnyActiveCall,
 8641    cx: &mut AsyncApp,
 8642) -> Result<bool> {
 8643    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8644        if !active_call.is_in_room(cx) {
 8645            return (false, false);
 8646        }
 8647
 8648        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8649        let should_prompt = active_call.is_sharing_project(cx)
 8650            && active_call.has_remote_participants(cx)
 8651            && !already_in_channel;
 8652        (should_prompt, already_in_channel)
 8653    });
 8654
 8655    if already_in_channel {
 8656        let task = cx.update(|cx| {
 8657            if let Some((project, host)) = active_call.most_active_project(cx) {
 8658                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8659            } else {
 8660                None
 8661            }
 8662        });
 8663        if let Some(task) = task {
 8664            task.await?;
 8665        }
 8666        return anyhow::Ok(true);
 8667    }
 8668
 8669    if should_prompt {
 8670        if let Some(multi_workspace) = requesting_window {
 8671            let answer = multi_workspace
 8672                .update(cx, |_, window, cx| {
 8673                    window.prompt(
 8674                        PromptLevel::Warning,
 8675                        "Do you want to switch channels?",
 8676                        Some("Leaving this call will unshare your current project."),
 8677                        &["Yes, Join Channel", "Cancel"],
 8678                        cx,
 8679                    )
 8680                })?
 8681                .await;
 8682
 8683            if answer == Ok(1) {
 8684                return Ok(false);
 8685            }
 8686        } else {
 8687            return Ok(false);
 8688        }
 8689    }
 8690
 8691    let client = cx.update(|cx| active_call.client(cx));
 8692
 8693    let mut client_status = client.status();
 8694
 8695    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8696    'outer: loop {
 8697        let Some(status) = client_status.recv().await else {
 8698            anyhow::bail!("error connecting");
 8699        };
 8700
 8701        match status {
 8702            Status::Connecting
 8703            | Status::Authenticating
 8704            | Status::Authenticated
 8705            | Status::Reconnecting
 8706            | Status::Reauthenticating
 8707            | Status::Reauthenticated => continue,
 8708            Status::Connected { .. } => break 'outer,
 8709            Status::SignedOut | Status::AuthenticationError => {
 8710                return Err(ErrorCode::SignedOut.into());
 8711            }
 8712            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8713            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8714                return Err(ErrorCode::Disconnected.into());
 8715            }
 8716        }
 8717    }
 8718
 8719    let joined = cx
 8720        .update(|cx| active_call.join_channel(channel_id, cx))
 8721        .await?;
 8722
 8723    if !joined {
 8724        return anyhow::Ok(true);
 8725    }
 8726
 8727    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8728
 8729    let task = cx.update(|cx| {
 8730        if let Some((project, host)) = active_call.most_active_project(cx) {
 8731            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8732        }
 8733
 8734        // If you are the first to join a channel, see if you should share your project.
 8735        if !active_call.has_remote_participants(cx)
 8736            && !active_call.local_participant_is_guest(cx)
 8737            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8738        {
 8739            let project = workspace.update(cx, |workspace, cx| {
 8740                let project = workspace.project.read(cx);
 8741
 8742                if !active_call.share_on_join(cx) {
 8743                    return None;
 8744                }
 8745
 8746                if (project.is_local() || project.is_via_remote_server())
 8747                    && project.visible_worktrees(cx).any(|tree| {
 8748                        tree.read(cx)
 8749                            .root_entry()
 8750                            .is_some_and(|entry| entry.is_dir())
 8751                    })
 8752                {
 8753                    Some(workspace.project.clone())
 8754                } else {
 8755                    None
 8756                }
 8757            });
 8758            if let Some(project) = project {
 8759                let share_task = active_call.share_project(project, cx);
 8760                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8761                    share_task.await?;
 8762                    Ok(())
 8763                }));
 8764            }
 8765        }
 8766
 8767        None
 8768    });
 8769    if let Some(task) = task {
 8770        task.await?;
 8771        return anyhow::Ok(true);
 8772    }
 8773    anyhow::Ok(false)
 8774}
 8775
 8776pub fn join_channel(
 8777    channel_id: ChannelId,
 8778    app_state: Arc<AppState>,
 8779    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8780    requesting_workspace: Option<WeakEntity<Workspace>>,
 8781    cx: &mut App,
 8782) -> Task<Result<()>> {
 8783    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8784    cx.spawn(async move |cx| {
 8785        let result = join_channel_internal(
 8786            channel_id,
 8787            &app_state,
 8788            requesting_window,
 8789            requesting_workspace,
 8790            &*active_call.0,
 8791            cx,
 8792        )
 8793        .await;
 8794
 8795        // join channel succeeded, and opened a window
 8796        if matches!(result, Ok(true)) {
 8797            return anyhow::Ok(());
 8798        }
 8799
 8800        // find an existing workspace to focus and show call controls
 8801        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8802        if active_window.is_none() {
 8803            // no open workspaces, make one to show the error in (blergh)
 8804            let OpenResult {
 8805                window: window_handle,
 8806                ..
 8807            } = cx
 8808                .update(|cx| {
 8809                    Workspace::new_local(
 8810                        vec![],
 8811                        app_state.clone(),
 8812                        requesting_window,
 8813                        None,
 8814                        None,
 8815                        true,
 8816                        cx,
 8817                    )
 8818                })
 8819                .await?;
 8820
 8821            window_handle
 8822                .update(cx, |_, window, _cx| {
 8823                    window.activate_window();
 8824                })
 8825                .ok();
 8826
 8827            if result.is_ok() {
 8828                cx.update(|cx| {
 8829                    cx.dispatch_action(&OpenChannelNotes);
 8830                });
 8831            }
 8832
 8833            active_window = Some(window_handle);
 8834        }
 8835
 8836        if let Err(err) = result {
 8837            log::error!("failed to join channel: {}", err);
 8838            if let Some(active_window) = active_window {
 8839                active_window
 8840                    .update(cx, |_, window, cx| {
 8841                        let detail: SharedString = match err.error_code() {
 8842                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8843                            ErrorCode::UpgradeRequired => concat!(
 8844                                "Your are running an unsupported version of Zed. ",
 8845                                "Please update to continue."
 8846                            )
 8847                            .into(),
 8848                            ErrorCode::NoSuchChannel => concat!(
 8849                                "No matching channel was found. ",
 8850                                "Please check the link and try again."
 8851                            )
 8852                            .into(),
 8853                            ErrorCode::Forbidden => concat!(
 8854                                "This channel is private, and you do not have access. ",
 8855                                "Please ask someone to add you and try again."
 8856                            )
 8857                            .into(),
 8858                            ErrorCode::Disconnected => {
 8859                                "Please check your internet connection and try again.".into()
 8860                            }
 8861                            _ => format!("{}\n\nPlease try again.", err).into(),
 8862                        };
 8863                        window.prompt(
 8864                            PromptLevel::Critical,
 8865                            "Failed to join channel",
 8866                            Some(&detail),
 8867                            &["Ok"],
 8868                            cx,
 8869                        )
 8870                    })?
 8871                    .await
 8872                    .ok();
 8873            }
 8874        }
 8875
 8876        // return ok, we showed the error to the user.
 8877        anyhow::Ok(())
 8878    })
 8879}
 8880
 8881pub async fn get_any_active_multi_workspace(
 8882    app_state: Arc<AppState>,
 8883    mut cx: AsyncApp,
 8884) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8885    // find an existing workspace to focus and show call controls
 8886    let active_window = activate_any_workspace_window(&mut cx);
 8887    if active_window.is_none() {
 8888        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, true, cx))
 8889            .await?;
 8890    }
 8891    activate_any_workspace_window(&mut cx).context("could not open zed")
 8892}
 8893
 8894fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8895    cx.update(|cx| {
 8896        if let Some(workspace_window) = cx
 8897            .active_window()
 8898            .and_then(|window| window.downcast::<MultiWorkspace>())
 8899        {
 8900            return Some(workspace_window);
 8901        }
 8902
 8903        for window in cx.windows() {
 8904            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8905                workspace_window
 8906                    .update(cx, |_, window, _| window.activate_window())
 8907                    .ok();
 8908                return Some(workspace_window);
 8909            }
 8910        }
 8911        None
 8912    })
 8913}
 8914
 8915pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8916    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 8917}
 8918
 8919pub fn workspace_windows_for_location(
 8920    serialized_location: &SerializedWorkspaceLocation,
 8921    cx: &App,
 8922) -> Vec<WindowHandle<MultiWorkspace>> {
 8923    cx.windows()
 8924        .into_iter()
 8925        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8926        .filter(|multi_workspace| {
 8927            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 8928                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 8929                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 8930                }
 8931                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 8932                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 8933                    a.distro_name == b.distro_name
 8934                }
 8935                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 8936                    a.container_id == b.container_id
 8937                }
 8938                #[cfg(any(test, feature = "test-support"))]
 8939                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 8940                    a.id == b.id
 8941                }
 8942                _ => false,
 8943            };
 8944
 8945            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8946                multi_workspace.workspaces().iter().any(|workspace| {
 8947                    match workspace.read(cx).workspace_location(cx) {
 8948                        WorkspaceLocation::Location(location, _) => {
 8949                            match (&location, serialized_location) {
 8950                                (
 8951                                    SerializedWorkspaceLocation::Local,
 8952                                    SerializedWorkspaceLocation::Local,
 8953                                ) => true,
 8954                                (
 8955                                    SerializedWorkspaceLocation::Remote(a),
 8956                                    SerializedWorkspaceLocation::Remote(b),
 8957                                ) => same_host(a, b),
 8958                                _ => false,
 8959                            }
 8960                        }
 8961                        _ => false,
 8962                    }
 8963                })
 8964            })
 8965        })
 8966        .collect()
 8967}
 8968
 8969pub async fn find_existing_workspace(
 8970    abs_paths: &[PathBuf],
 8971    open_options: &OpenOptions,
 8972    location: &SerializedWorkspaceLocation,
 8973    cx: &mut AsyncApp,
 8974) -> (
 8975    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 8976    OpenVisible,
 8977) {
 8978    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 8979    let mut open_visible = OpenVisible::All;
 8980    let mut best_match = None;
 8981
 8982    if open_options.open_new_workspace != Some(true) {
 8983        cx.update(|cx| {
 8984            for window in workspace_windows_for_location(location, cx) {
 8985                if let Ok(multi_workspace) = window.read(cx) {
 8986                    for workspace in multi_workspace.workspaces() {
 8987                        let project = workspace.read(cx).project.read(cx);
 8988                        let m = project.visibility_for_paths(
 8989                            abs_paths,
 8990                            open_options.open_new_workspace == None,
 8991                            cx,
 8992                        );
 8993                        if m > best_match {
 8994                            existing = Some((window, workspace.clone()));
 8995                            best_match = m;
 8996                        } else if best_match.is_none()
 8997                            && open_options.open_new_workspace == Some(false)
 8998                        {
 8999                            existing = Some((window, workspace.clone()))
 9000                        }
 9001                    }
 9002                }
 9003            }
 9004        });
 9005
 9006        let all_paths_are_files = existing
 9007            .as_ref()
 9008            .and_then(|(_, target_workspace)| {
 9009                cx.update(|cx| {
 9010                    let workspace = target_workspace.read(cx);
 9011                    let project = workspace.project.read(cx);
 9012                    let path_style = workspace.path_style(cx);
 9013                    Some(!abs_paths.iter().any(|path| {
 9014                        let path = util::paths::SanitizedPath::new(path);
 9015                        project.worktrees(cx).any(|worktree| {
 9016                            let worktree = worktree.read(cx);
 9017                            let abs_path = worktree.abs_path();
 9018                            path_style
 9019                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9020                                .and_then(|rel| worktree.entry_for_path(&rel))
 9021                                .is_some_and(|e| e.is_dir())
 9022                        })
 9023                    }))
 9024                })
 9025            })
 9026            .unwrap_or(false);
 9027
 9028        if open_options.open_new_workspace.is_none()
 9029            && existing.is_some()
 9030            && open_options.wait
 9031            && all_paths_are_files
 9032        {
 9033            cx.update(|cx| {
 9034                let windows = workspace_windows_for_location(location, cx);
 9035                let window = cx
 9036                    .active_window()
 9037                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9038                    .filter(|window| windows.contains(window))
 9039                    .or_else(|| windows.into_iter().next());
 9040                if let Some(window) = window {
 9041                    if let Ok(multi_workspace) = window.read(cx) {
 9042                        let active_workspace = multi_workspace.workspace().clone();
 9043                        existing = Some((window, active_workspace));
 9044                        open_visible = OpenVisible::None;
 9045                    }
 9046                }
 9047            });
 9048        }
 9049    }
 9050    (existing, open_visible)
 9051}
 9052
 9053#[derive(Default, Clone)]
 9054pub struct OpenOptions {
 9055    pub visible: Option<OpenVisible>,
 9056    pub focus: Option<bool>,
 9057    pub open_new_workspace: Option<bool>,
 9058    pub wait: bool,
 9059    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 9060    pub env: Option<HashMap<String, String>>,
 9061}
 9062
 9063/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9064/// or [`Workspace::open_workspace_for_paths`].
 9065pub struct OpenResult {
 9066    pub window: WindowHandle<MultiWorkspace>,
 9067    pub workspace: Entity<Workspace>,
 9068    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9069}
 9070
 9071/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9072pub fn open_workspace_by_id(
 9073    workspace_id: WorkspaceId,
 9074    app_state: Arc<AppState>,
 9075    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9076    cx: &mut App,
 9077) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9078    let project_handle = Project::local(
 9079        app_state.client.clone(),
 9080        app_state.node_runtime.clone(),
 9081        app_state.user_store.clone(),
 9082        app_state.languages.clone(),
 9083        app_state.fs.clone(),
 9084        None,
 9085        project::LocalProjectFlags {
 9086            init_worktree_trust: true,
 9087            ..project::LocalProjectFlags::default()
 9088        },
 9089        cx,
 9090    );
 9091
 9092    let db = WorkspaceDb::global(cx);
 9093    let kvp = db::kvp::KeyValueStore::global(cx);
 9094    cx.spawn(async move |cx| {
 9095        let serialized_workspace = db
 9096            .workspace_for_id(workspace_id)
 9097            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9098
 9099        let centered_layout = serialized_workspace.centered_layout;
 9100
 9101        let (window, workspace) = if let Some(window) = requesting_window {
 9102            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9103                let workspace = cx.new(|cx| {
 9104                    let mut workspace = Workspace::new(
 9105                        Some(workspace_id),
 9106                        project_handle.clone(),
 9107                        app_state.clone(),
 9108                        window,
 9109                        cx,
 9110                    );
 9111                    workspace.centered_layout = centered_layout;
 9112                    workspace
 9113                });
 9114                multi_workspace.add_workspace(workspace.clone(), cx);
 9115                workspace
 9116            })?;
 9117            (window, workspace)
 9118        } else {
 9119            let window_bounds_override = window_bounds_env_override();
 9120
 9121            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9122                (Some(WindowBounds::Windowed(bounds)), None)
 9123            } else if let Some(display) = serialized_workspace.display
 9124                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9125            {
 9126                (Some(bounds.0), Some(display))
 9127            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9128                (Some(bounds), Some(display))
 9129            } else {
 9130                (None, None)
 9131            };
 9132
 9133            let options = cx.update(|cx| {
 9134                let mut options = (app_state.build_window_options)(display, cx);
 9135                options.window_bounds = window_bounds;
 9136                options
 9137            });
 9138
 9139            let window = cx.open_window(options, {
 9140                let app_state = app_state.clone();
 9141                let project_handle = project_handle.clone();
 9142                move |window, cx| {
 9143                    let workspace = cx.new(|cx| {
 9144                        let mut workspace = Workspace::new(
 9145                            Some(workspace_id),
 9146                            project_handle,
 9147                            app_state,
 9148                            window,
 9149                            cx,
 9150                        );
 9151                        workspace.centered_layout = centered_layout;
 9152                        workspace
 9153                    });
 9154                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9155                }
 9156            })?;
 9157
 9158            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9159                multi_workspace.workspace().clone()
 9160            })?;
 9161
 9162            (window, workspace)
 9163        };
 9164
 9165        notify_if_database_failed(window, cx);
 9166
 9167        // Restore items from the serialized workspace
 9168        window
 9169            .update(cx, |_, window, cx| {
 9170                workspace.update(cx, |_workspace, cx| {
 9171                    open_items(Some(serialized_workspace), vec![], window, cx)
 9172                })
 9173            })?
 9174            .await?;
 9175
 9176        window.update(cx, |_, window, cx| {
 9177            workspace.update(cx, |workspace, cx| {
 9178                workspace.serialize_workspace(window, cx);
 9179            });
 9180        })?;
 9181
 9182        Ok(window)
 9183    })
 9184}
 9185
 9186#[allow(clippy::type_complexity)]
 9187pub fn open_paths(
 9188    abs_paths: &[PathBuf],
 9189    app_state: Arc<AppState>,
 9190    open_options: OpenOptions,
 9191    cx: &mut App,
 9192) -> Task<anyhow::Result<OpenResult>> {
 9193    let abs_paths = abs_paths.to_vec();
 9194    #[cfg(target_os = "windows")]
 9195    let wsl_path = abs_paths
 9196        .iter()
 9197        .find_map(|p| util::paths::WslPath::from_path(p));
 9198
 9199    cx.spawn(async move |cx| {
 9200        let (mut existing, mut open_visible) = find_existing_workspace(
 9201            &abs_paths,
 9202            &open_options,
 9203            &SerializedWorkspaceLocation::Local,
 9204            cx,
 9205        )
 9206        .await;
 9207
 9208        // Fallback: if no workspace contains the paths and all paths are files,
 9209        // prefer an existing local workspace window (active window first).
 9210        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9211            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9212            let all_metadatas = futures::future::join_all(all_paths)
 9213                .await
 9214                .into_iter()
 9215                .filter_map(|result| result.ok().flatten())
 9216                .collect::<Vec<_>>();
 9217
 9218            if all_metadatas.iter().all(|file| !file.is_dir) {
 9219                cx.update(|cx| {
 9220                    let windows = workspace_windows_for_location(
 9221                        &SerializedWorkspaceLocation::Local,
 9222                        cx,
 9223                    );
 9224                    let window = cx
 9225                        .active_window()
 9226                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9227                        .filter(|window| windows.contains(window))
 9228                        .or_else(|| windows.into_iter().next());
 9229                    if let Some(window) = window {
 9230                        if let Ok(multi_workspace) = window.read(cx) {
 9231                            let active_workspace = multi_workspace.workspace().clone();
 9232                            existing = Some((window, active_workspace));
 9233                            open_visible = OpenVisible::None;
 9234                        }
 9235                    }
 9236                });
 9237            }
 9238        }
 9239
 9240        let result = if let Some((existing, target_workspace)) = existing {
 9241            let open_task = existing
 9242                .update(cx, |multi_workspace, window, cx| {
 9243                    window.activate_window();
 9244                    multi_workspace.activate(target_workspace.clone(), cx);
 9245                    target_workspace.update(cx, |workspace, cx| {
 9246                        workspace.open_paths(
 9247                            abs_paths,
 9248                            OpenOptions {
 9249                                visible: Some(open_visible),
 9250                                ..Default::default()
 9251                            },
 9252                            None,
 9253                            window,
 9254                            cx,
 9255                        )
 9256                    })
 9257                })?
 9258                .await;
 9259
 9260            _ = existing.update(cx, |multi_workspace, _, cx| {
 9261                let workspace = multi_workspace.workspace().clone();
 9262                workspace.update(cx, |workspace, cx| {
 9263                    for item in open_task.iter().flatten() {
 9264                        if let Err(e) = item {
 9265                            workspace.show_error(&e, cx);
 9266                        }
 9267                    }
 9268                });
 9269            });
 9270
 9271            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9272        } else {
 9273            let result = cx
 9274                .update(move |cx| {
 9275                    Workspace::new_local(
 9276                        abs_paths,
 9277                        app_state.clone(),
 9278                        open_options.replace_window,
 9279                        open_options.env,
 9280                        None,
 9281                        true,
 9282                        cx,
 9283                    )
 9284                })
 9285                .await;
 9286
 9287            if let Ok(ref result) = result {
 9288                result.window
 9289                    .update(cx, |_, window, _cx| {
 9290                        window.activate_window();
 9291                    })
 9292                    .log_err();
 9293            }
 9294
 9295            result
 9296        };
 9297
 9298        #[cfg(target_os = "windows")]
 9299        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9300            && let Ok(ref result) = result
 9301        {
 9302            result.window
 9303                .update(cx, move |multi_workspace, _window, cx| {
 9304                    struct OpenInWsl;
 9305                    let workspace = multi_workspace.workspace().clone();
 9306                    workspace.update(cx, |workspace, cx| {
 9307                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9308                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9309                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9310                            cx.new(move |cx| {
 9311                                MessageNotification::new(msg, cx)
 9312                                    .primary_message("Open in WSL")
 9313                                    .primary_icon(IconName::FolderOpen)
 9314                                    .primary_on_click(move |window, cx| {
 9315                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9316                                                distro: remote::WslConnectionOptions {
 9317                                                        distro_name: distro.clone(),
 9318                                                    user: None,
 9319                                                },
 9320                                                paths: vec![path.clone().into()],
 9321                                            }), cx)
 9322                                    })
 9323                            })
 9324                        });
 9325                    });
 9326                })
 9327                .unwrap();
 9328        };
 9329        result
 9330    })
 9331}
 9332
 9333pub fn open_new(
 9334    open_options: OpenOptions,
 9335    app_state: Arc<AppState>,
 9336    cx: &mut App,
 9337    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9338) -> Task<anyhow::Result<()>> {
 9339    let task = Workspace::new_local(
 9340        Vec::new(),
 9341        app_state,
 9342        open_options.replace_window,
 9343        open_options.env,
 9344        Some(Box::new(init)),
 9345        true,
 9346        cx,
 9347    );
 9348    cx.spawn(async move |cx| {
 9349        let OpenResult { window, .. } = task.await?;
 9350        window
 9351            .update(cx, |_, window, _cx| {
 9352                window.activate_window();
 9353            })
 9354            .ok();
 9355        Ok(())
 9356    })
 9357}
 9358
 9359pub fn create_and_open_local_file(
 9360    path: &'static Path,
 9361    window: &mut Window,
 9362    cx: &mut Context<Workspace>,
 9363    default_content: impl 'static + Send + FnOnce() -> Rope,
 9364) -> Task<Result<Box<dyn ItemHandle>>> {
 9365    cx.spawn_in(window, async move |workspace, cx| {
 9366        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9367        if !fs.is_file(path).await {
 9368            fs.create_file(path, Default::default()).await?;
 9369            fs.save(path, &default_content(), Default::default())
 9370                .await?;
 9371        }
 9372
 9373        workspace
 9374            .update_in(cx, |workspace, window, cx| {
 9375                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9376                    let path = workspace
 9377                        .project
 9378                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9379                    cx.spawn_in(window, async move |workspace, cx| {
 9380                        let path = path.await?;
 9381
 9382                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9383
 9384                        let mut items = workspace
 9385                            .update_in(cx, |workspace, window, cx| {
 9386                                workspace.open_paths(
 9387                                    vec![path.to_path_buf()],
 9388                                    OpenOptions {
 9389                                        visible: Some(OpenVisible::None),
 9390                                        ..Default::default()
 9391                                    },
 9392                                    None,
 9393                                    window,
 9394                                    cx,
 9395                                )
 9396                            })?
 9397                            .await;
 9398                        let item = items.pop().flatten();
 9399                        item.with_context(|| format!("path {path:?} is not a file"))?
 9400                    })
 9401                })
 9402            })?
 9403            .await?
 9404            .await
 9405    })
 9406}
 9407
 9408pub fn open_remote_project_with_new_connection(
 9409    window: WindowHandle<MultiWorkspace>,
 9410    remote_connection: Arc<dyn RemoteConnection>,
 9411    cancel_rx: oneshot::Receiver<()>,
 9412    delegate: Arc<dyn RemoteClientDelegate>,
 9413    app_state: Arc<AppState>,
 9414    paths: Vec<PathBuf>,
 9415    cx: &mut App,
 9416) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9417    cx.spawn(async move |cx| {
 9418        let (workspace_id, serialized_workspace) =
 9419            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9420                .await?;
 9421
 9422        let session = match cx
 9423            .update(|cx| {
 9424                remote::RemoteClient::new(
 9425                    ConnectionIdentifier::Workspace(workspace_id.0),
 9426                    remote_connection,
 9427                    cancel_rx,
 9428                    delegate,
 9429                    cx,
 9430                )
 9431            })
 9432            .await?
 9433        {
 9434            Some(result) => result,
 9435            None => return Ok(Vec::new()),
 9436        };
 9437
 9438        let project = cx.update(|cx| {
 9439            project::Project::remote(
 9440                session,
 9441                app_state.client.clone(),
 9442                app_state.node_runtime.clone(),
 9443                app_state.user_store.clone(),
 9444                app_state.languages.clone(),
 9445                app_state.fs.clone(),
 9446                true,
 9447                cx,
 9448            )
 9449        });
 9450
 9451        open_remote_project_inner(
 9452            project,
 9453            paths,
 9454            workspace_id,
 9455            serialized_workspace,
 9456            app_state,
 9457            window,
 9458            cx,
 9459        )
 9460        .await
 9461    })
 9462}
 9463
 9464pub fn open_remote_project_with_existing_connection(
 9465    connection_options: RemoteConnectionOptions,
 9466    project: Entity<Project>,
 9467    paths: Vec<PathBuf>,
 9468    app_state: Arc<AppState>,
 9469    window: WindowHandle<MultiWorkspace>,
 9470    cx: &mut AsyncApp,
 9471) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9472    cx.spawn(async move |cx| {
 9473        let (workspace_id, serialized_workspace) =
 9474            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9475
 9476        open_remote_project_inner(
 9477            project,
 9478            paths,
 9479            workspace_id,
 9480            serialized_workspace,
 9481            app_state,
 9482            window,
 9483            cx,
 9484        )
 9485        .await
 9486    })
 9487}
 9488
 9489async fn open_remote_project_inner(
 9490    project: Entity<Project>,
 9491    paths: Vec<PathBuf>,
 9492    workspace_id: WorkspaceId,
 9493    serialized_workspace: Option<SerializedWorkspace>,
 9494    app_state: Arc<AppState>,
 9495    window: WindowHandle<MultiWorkspace>,
 9496    cx: &mut AsyncApp,
 9497) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9498    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9499    let toolchains = db.toolchains(workspace_id).await?;
 9500    for (toolchain, worktree_path, path) in toolchains {
 9501        project
 9502            .update(cx, |this, cx| {
 9503                let Some(worktree_id) =
 9504                    this.find_worktree(&worktree_path, cx)
 9505                        .and_then(|(worktree, rel_path)| {
 9506                            if rel_path.is_empty() {
 9507                                Some(worktree.read(cx).id())
 9508                            } else {
 9509                                None
 9510                            }
 9511                        })
 9512                else {
 9513                    return Task::ready(None);
 9514                };
 9515
 9516                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9517            })
 9518            .await;
 9519    }
 9520    let mut project_paths_to_open = vec![];
 9521    let mut project_path_errors = vec![];
 9522
 9523    for path in paths {
 9524        let result = cx
 9525            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9526            .await;
 9527        match result {
 9528            Ok((_, project_path)) => {
 9529                project_paths_to_open.push((path.clone(), Some(project_path)));
 9530            }
 9531            Err(error) => {
 9532                project_path_errors.push(error);
 9533            }
 9534        };
 9535    }
 9536
 9537    if project_paths_to_open.is_empty() {
 9538        return Err(project_path_errors.pop().context("no paths given")?);
 9539    }
 9540
 9541    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9542        telemetry::event!("SSH Project Opened");
 9543
 9544        let new_workspace = cx.new(|cx| {
 9545            let mut workspace =
 9546                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9547            workspace.update_history(cx);
 9548
 9549            if let Some(ref serialized) = serialized_workspace {
 9550                workspace.centered_layout = serialized.centered_layout;
 9551            }
 9552
 9553            workspace
 9554        });
 9555
 9556        multi_workspace.activate(new_workspace.clone(), cx);
 9557        new_workspace
 9558    })?;
 9559
 9560    let items = window
 9561        .update(cx, |_, window, cx| {
 9562            window.activate_window();
 9563            workspace.update(cx, |_workspace, cx| {
 9564                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9565            })
 9566        })?
 9567        .await?;
 9568
 9569    workspace.update(cx, |workspace, cx| {
 9570        for error in project_path_errors {
 9571            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9572                if let Some(path) = error.error_tag("path") {
 9573                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9574                }
 9575            } else {
 9576                workspace.show_error(&error, cx)
 9577            }
 9578        }
 9579    });
 9580
 9581    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9582}
 9583
 9584fn deserialize_remote_project(
 9585    connection_options: RemoteConnectionOptions,
 9586    paths: Vec<PathBuf>,
 9587    cx: &AsyncApp,
 9588) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9589    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9590    cx.background_spawn(async move {
 9591        let remote_connection_id = db
 9592            .get_or_create_remote_connection(connection_options)
 9593            .await?;
 9594
 9595        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9596
 9597        let workspace_id = if let Some(workspace_id) =
 9598            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9599        {
 9600            workspace_id
 9601        } else {
 9602            db.next_id().await?
 9603        };
 9604
 9605        Ok((workspace_id, serialized_workspace))
 9606    })
 9607}
 9608
 9609pub fn join_in_room_project(
 9610    project_id: u64,
 9611    follow_user_id: u64,
 9612    app_state: Arc<AppState>,
 9613    cx: &mut App,
 9614) -> Task<Result<()>> {
 9615    let windows = cx.windows();
 9616    cx.spawn(async move |cx| {
 9617        let existing_window_and_workspace: Option<(
 9618            WindowHandle<MultiWorkspace>,
 9619            Entity<Workspace>,
 9620        )> = windows.into_iter().find_map(|window_handle| {
 9621            window_handle
 9622                .downcast::<MultiWorkspace>()
 9623                .and_then(|window_handle| {
 9624                    window_handle
 9625                        .update(cx, |multi_workspace, _window, cx| {
 9626                            for workspace in multi_workspace.workspaces() {
 9627                                if workspace.read(cx).project().read(cx).remote_id()
 9628                                    == Some(project_id)
 9629                                {
 9630                                    return Some((window_handle, workspace.clone()));
 9631                                }
 9632                            }
 9633                            None
 9634                        })
 9635                        .unwrap_or(None)
 9636                })
 9637        });
 9638
 9639        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9640            existing_window_and_workspace
 9641        {
 9642            existing_window
 9643                .update(cx, |multi_workspace, _, cx| {
 9644                    multi_workspace.activate(target_workspace, cx);
 9645                })
 9646                .ok();
 9647            existing_window
 9648        } else {
 9649            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9650            let project = cx
 9651                .update(|cx| {
 9652                    active_call.0.join_project(
 9653                        project_id,
 9654                        app_state.languages.clone(),
 9655                        app_state.fs.clone(),
 9656                        cx,
 9657                    )
 9658                })
 9659                .await?;
 9660
 9661            let window_bounds_override = window_bounds_env_override();
 9662            cx.update(|cx| {
 9663                let mut options = (app_state.build_window_options)(None, cx);
 9664                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9665                cx.open_window(options, |window, cx| {
 9666                    let workspace = cx.new(|cx| {
 9667                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9668                    });
 9669                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9670                })
 9671            })?
 9672        };
 9673
 9674        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9675            cx.activate(true);
 9676            window.activate_window();
 9677
 9678            // We set the active workspace above, so this is the correct workspace.
 9679            let workspace = multi_workspace.workspace().clone();
 9680            workspace.update(cx, |workspace, cx| {
 9681                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9682                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9683                    .or_else(|| {
 9684                        // If we couldn't follow the given user, follow the host instead.
 9685                        let collaborator = workspace
 9686                            .project()
 9687                            .read(cx)
 9688                            .collaborators()
 9689                            .values()
 9690                            .find(|collaborator| collaborator.is_host)?;
 9691                        Some(collaborator.peer_id)
 9692                    });
 9693
 9694                if let Some(follow_peer_id) = follow_peer_id {
 9695                    workspace.follow(follow_peer_id, window, cx);
 9696                }
 9697            });
 9698        })?;
 9699
 9700        anyhow::Ok(())
 9701    })
 9702}
 9703
 9704pub fn reload(cx: &mut App) {
 9705    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9706    let mut workspace_windows = cx
 9707        .windows()
 9708        .into_iter()
 9709        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9710        .collect::<Vec<_>>();
 9711
 9712    // If multiple windows have unsaved changes, and need a save prompt,
 9713    // prompt in the active window before switching to a different window.
 9714    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9715
 9716    let mut prompt = None;
 9717    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9718        prompt = window
 9719            .update(cx, |_, window, cx| {
 9720                window.prompt(
 9721                    PromptLevel::Info,
 9722                    "Are you sure you want to restart?",
 9723                    None,
 9724                    &["Restart", "Cancel"],
 9725                    cx,
 9726                )
 9727            })
 9728            .ok();
 9729    }
 9730
 9731    cx.spawn(async move |cx| {
 9732        if let Some(prompt) = prompt {
 9733            let answer = prompt.await?;
 9734            if answer != 0 {
 9735                return anyhow::Ok(());
 9736            }
 9737        }
 9738
 9739        // If the user cancels any save prompt, then keep the app open.
 9740        for window in workspace_windows {
 9741            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9742                let workspace = multi_workspace.workspace().clone();
 9743                workspace.update(cx, |workspace, cx| {
 9744                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9745                })
 9746            }) && !should_close.await?
 9747            {
 9748                return anyhow::Ok(());
 9749            }
 9750        }
 9751        cx.update(|cx| cx.restart());
 9752        anyhow::Ok(())
 9753    })
 9754    .detach_and_log_err(cx);
 9755}
 9756
 9757fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9758    let mut parts = value.split(',');
 9759    let x: usize = parts.next()?.parse().ok()?;
 9760    let y: usize = parts.next()?.parse().ok()?;
 9761    Some(point(px(x as f32), px(y as f32)))
 9762}
 9763
 9764fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9765    let mut parts = value.split(',');
 9766    let width: usize = parts.next()?.parse().ok()?;
 9767    let height: usize = parts.next()?.parse().ok()?;
 9768    Some(size(px(width as f32), px(height as f32)))
 9769}
 9770
 9771/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9772/// appropriate.
 9773///
 9774/// The `border_radius_tiling` parameter allows overriding which corners get
 9775/// rounded, independently of the actual window tiling state. This is used
 9776/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9777/// we want square corners on the left (so the sidebar appears flush with the
 9778/// window edge) but we still need the shadow padding for proper visual
 9779/// appearance. Unlike actual window tiling, this only affects border radius -
 9780/// not padding or shadows.
 9781pub fn client_side_decorations(
 9782    element: impl IntoElement,
 9783    window: &mut Window,
 9784    cx: &mut App,
 9785    border_radius_tiling: Tiling,
 9786) -> Stateful<Div> {
 9787    const BORDER_SIZE: Pixels = px(1.0);
 9788    let decorations = window.window_decorations();
 9789    let tiling = match decorations {
 9790        Decorations::Server => Tiling::default(),
 9791        Decorations::Client { tiling } => tiling,
 9792    };
 9793
 9794    match decorations {
 9795        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9796        Decorations::Server => window.set_client_inset(px(0.0)),
 9797    }
 9798
 9799    struct GlobalResizeEdge(ResizeEdge);
 9800    impl Global for GlobalResizeEdge {}
 9801
 9802    div()
 9803        .id("window-backdrop")
 9804        .bg(transparent_black())
 9805        .map(|div| match decorations {
 9806            Decorations::Server => div,
 9807            Decorations::Client { .. } => div
 9808                .when(
 9809                    !(tiling.top
 9810                        || tiling.right
 9811                        || border_radius_tiling.top
 9812                        || border_radius_tiling.right),
 9813                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9814                )
 9815                .when(
 9816                    !(tiling.top
 9817                        || tiling.left
 9818                        || border_radius_tiling.top
 9819                        || border_radius_tiling.left),
 9820                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9821                )
 9822                .when(
 9823                    !(tiling.bottom
 9824                        || tiling.right
 9825                        || border_radius_tiling.bottom
 9826                        || border_radius_tiling.right),
 9827                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9828                )
 9829                .when(
 9830                    !(tiling.bottom
 9831                        || tiling.left
 9832                        || border_radius_tiling.bottom
 9833                        || border_radius_tiling.left),
 9834                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9835                )
 9836                .when(!tiling.top, |div| {
 9837                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9838                })
 9839                .when(!tiling.bottom, |div| {
 9840                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9841                })
 9842                .when(!tiling.left, |div| {
 9843                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9844                })
 9845                .when(!tiling.right, |div| {
 9846                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9847                })
 9848                .on_mouse_move(move |e, window, cx| {
 9849                    let size = window.window_bounds().get_bounds().size;
 9850                    let pos = e.position;
 9851
 9852                    let new_edge =
 9853                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9854
 9855                    let edge = cx.try_global::<GlobalResizeEdge>();
 9856                    if new_edge != edge.map(|edge| edge.0) {
 9857                        window
 9858                            .window_handle()
 9859                            .update(cx, |workspace, _, cx| {
 9860                                cx.notify(workspace.entity_id());
 9861                            })
 9862                            .ok();
 9863                    }
 9864                })
 9865                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9866                    let size = window.window_bounds().get_bounds().size;
 9867                    let pos = e.position;
 9868
 9869                    let edge = match resize_edge(
 9870                        pos,
 9871                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9872                        size,
 9873                        tiling,
 9874                    ) {
 9875                        Some(value) => value,
 9876                        None => return,
 9877                    };
 9878
 9879                    window.start_window_resize(edge);
 9880                }),
 9881        })
 9882        .size_full()
 9883        .child(
 9884            div()
 9885                .cursor(CursorStyle::Arrow)
 9886                .map(|div| match decorations {
 9887                    Decorations::Server => div,
 9888                    Decorations::Client { .. } => div
 9889                        .border_color(cx.theme().colors().border)
 9890                        .when(
 9891                            !(tiling.top
 9892                                || tiling.right
 9893                                || border_radius_tiling.top
 9894                                || border_radius_tiling.right),
 9895                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9896                        )
 9897                        .when(
 9898                            !(tiling.top
 9899                                || tiling.left
 9900                                || border_radius_tiling.top
 9901                                || border_radius_tiling.left),
 9902                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9903                        )
 9904                        .when(
 9905                            !(tiling.bottom
 9906                                || tiling.right
 9907                                || border_radius_tiling.bottom
 9908                                || border_radius_tiling.right),
 9909                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9910                        )
 9911                        .when(
 9912                            !(tiling.bottom
 9913                                || tiling.left
 9914                                || border_radius_tiling.bottom
 9915                                || border_radius_tiling.left),
 9916                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9917                        )
 9918                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9919                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9920                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9921                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9922                        .when(!tiling.is_tiled(), |div| {
 9923                            div.shadow(vec![gpui::BoxShadow {
 9924                                color: Hsla {
 9925                                    h: 0.,
 9926                                    s: 0.,
 9927                                    l: 0.,
 9928                                    a: 0.4,
 9929                                },
 9930                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9931                                spread_radius: px(0.),
 9932                                offset: point(px(0.0), px(0.0)),
 9933                            }])
 9934                        }),
 9935                })
 9936                .on_mouse_move(|_e, _, cx| {
 9937                    cx.stop_propagation();
 9938                })
 9939                .size_full()
 9940                .child(element),
 9941        )
 9942        .map(|div| match decorations {
 9943            Decorations::Server => div,
 9944            Decorations::Client { tiling, .. } => div.child(
 9945                canvas(
 9946                    |_bounds, window, _| {
 9947                        window.insert_hitbox(
 9948                            Bounds::new(
 9949                                point(px(0.0), px(0.0)),
 9950                                window.window_bounds().get_bounds().size,
 9951                            ),
 9952                            HitboxBehavior::Normal,
 9953                        )
 9954                    },
 9955                    move |_bounds, hitbox, window, cx| {
 9956                        let mouse = window.mouse_position();
 9957                        let size = window.window_bounds().get_bounds().size;
 9958                        let Some(edge) =
 9959                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 9960                        else {
 9961                            return;
 9962                        };
 9963                        cx.set_global(GlobalResizeEdge(edge));
 9964                        window.set_cursor_style(
 9965                            match edge {
 9966                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 9967                                ResizeEdge::Left | ResizeEdge::Right => {
 9968                                    CursorStyle::ResizeLeftRight
 9969                                }
 9970                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 9971                                    CursorStyle::ResizeUpLeftDownRight
 9972                                }
 9973                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 9974                                    CursorStyle::ResizeUpRightDownLeft
 9975                                }
 9976                            },
 9977                            &hitbox,
 9978                        );
 9979                    },
 9980                )
 9981                .size_full()
 9982                .absolute(),
 9983            ),
 9984        })
 9985}
 9986
 9987fn resize_edge(
 9988    pos: Point<Pixels>,
 9989    shadow_size: Pixels,
 9990    window_size: Size<Pixels>,
 9991    tiling: Tiling,
 9992) -> Option<ResizeEdge> {
 9993    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9994    if bounds.contains(&pos) {
 9995        return None;
 9996    }
 9997
 9998    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9999    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10000    if !tiling.top && top_left_bounds.contains(&pos) {
10001        return Some(ResizeEdge::TopLeft);
10002    }
10003
10004    let top_right_bounds = Bounds::new(
10005        Point::new(window_size.width - corner_size.width, px(0.)),
10006        corner_size,
10007    );
10008    if !tiling.top && top_right_bounds.contains(&pos) {
10009        return Some(ResizeEdge::TopRight);
10010    }
10011
10012    let bottom_left_bounds = Bounds::new(
10013        Point::new(px(0.), window_size.height - corner_size.height),
10014        corner_size,
10015    );
10016    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10017        return Some(ResizeEdge::BottomLeft);
10018    }
10019
10020    let bottom_right_bounds = Bounds::new(
10021        Point::new(
10022            window_size.width - corner_size.width,
10023            window_size.height - corner_size.height,
10024        ),
10025        corner_size,
10026    );
10027    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10028        return Some(ResizeEdge::BottomRight);
10029    }
10030
10031    if !tiling.top && pos.y < shadow_size {
10032        Some(ResizeEdge::Top)
10033    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10034        Some(ResizeEdge::Bottom)
10035    } else if !tiling.left && pos.x < shadow_size {
10036        Some(ResizeEdge::Left)
10037    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10038        Some(ResizeEdge::Right)
10039    } else {
10040        None
10041    }
10042}
10043
10044fn join_pane_into_active(
10045    active_pane: &Entity<Pane>,
10046    pane: &Entity<Pane>,
10047    window: &mut Window,
10048    cx: &mut App,
10049) {
10050    if pane == active_pane {
10051    } else if pane.read(cx).items_len() == 0 {
10052        pane.update(cx, |_, cx| {
10053            cx.emit(pane::Event::Remove {
10054                focus_on_pane: None,
10055            });
10056        })
10057    } else {
10058        move_all_items(pane, active_pane, window, cx);
10059    }
10060}
10061
10062fn move_all_items(
10063    from_pane: &Entity<Pane>,
10064    to_pane: &Entity<Pane>,
10065    window: &mut Window,
10066    cx: &mut App,
10067) {
10068    let destination_is_different = from_pane != to_pane;
10069    let mut moved_items = 0;
10070    for (item_ix, item_handle) in from_pane
10071        .read(cx)
10072        .items()
10073        .enumerate()
10074        .map(|(ix, item)| (ix, item.clone()))
10075        .collect::<Vec<_>>()
10076    {
10077        let ix = item_ix - moved_items;
10078        if destination_is_different {
10079            // Close item from previous pane
10080            from_pane.update(cx, |source, cx| {
10081                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10082            });
10083            moved_items += 1;
10084        }
10085
10086        // This automatically removes duplicate items in the pane
10087        to_pane.update(cx, |destination, cx| {
10088            destination.add_item(item_handle, true, true, None, window, cx);
10089            window.focus(&destination.focus_handle(cx), cx)
10090        });
10091    }
10092}
10093
10094pub fn move_item(
10095    source: &Entity<Pane>,
10096    destination: &Entity<Pane>,
10097    item_id_to_move: EntityId,
10098    destination_index: usize,
10099    activate: bool,
10100    window: &mut Window,
10101    cx: &mut App,
10102) {
10103    let Some((item_ix, item_handle)) = source
10104        .read(cx)
10105        .items()
10106        .enumerate()
10107        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10108        .map(|(ix, item)| (ix, item.clone()))
10109    else {
10110        // Tab was closed during drag
10111        return;
10112    };
10113
10114    if source != destination {
10115        // Close item from previous pane
10116        source.update(cx, |source, cx| {
10117            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10118        });
10119    }
10120
10121    // This automatically removes duplicate items in the pane
10122    destination.update(cx, |destination, cx| {
10123        destination.add_item_inner(
10124            item_handle,
10125            activate,
10126            activate,
10127            activate,
10128            Some(destination_index),
10129            window,
10130            cx,
10131        );
10132        if activate {
10133            window.focus(&destination.focus_handle(cx), cx)
10134        }
10135    });
10136}
10137
10138pub fn move_active_item(
10139    source: &Entity<Pane>,
10140    destination: &Entity<Pane>,
10141    focus_destination: bool,
10142    close_if_empty: bool,
10143    window: &mut Window,
10144    cx: &mut App,
10145) {
10146    if source == destination {
10147        return;
10148    }
10149    let Some(active_item) = source.read(cx).active_item() else {
10150        return;
10151    };
10152    source.update(cx, |source_pane, cx| {
10153        let item_id = active_item.item_id();
10154        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10155        destination.update(cx, |target_pane, cx| {
10156            target_pane.add_item(
10157                active_item,
10158                focus_destination,
10159                focus_destination,
10160                Some(target_pane.items_len()),
10161                window,
10162                cx,
10163            );
10164        });
10165    });
10166}
10167
10168pub fn clone_active_item(
10169    workspace_id: Option<WorkspaceId>,
10170    source: &Entity<Pane>,
10171    destination: &Entity<Pane>,
10172    focus_destination: bool,
10173    window: &mut Window,
10174    cx: &mut App,
10175) {
10176    if source == destination {
10177        return;
10178    }
10179    let Some(active_item) = source.read(cx).active_item() else {
10180        return;
10181    };
10182    if !active_item.can_split(cx) {
10183        return;
10184    }
10185    let destination = destination.downgrade();
10186    let task = active_item.clone_on_split(workspace_id, window, cx);
10187    window
10188        .spawn(cx, async move |cx| {
10189            let Some(clone) = task.await else {
10190                return;
10191            };
10192            destination
10193                .update_in(cx, |target_pane, window, cx| {
10194                    target_pane.add_item(
10195                        clone,
10196                        focus_destination,
10197                        focus_destination,
10198                        Some(target_pane.items_len()),
10199                        window,
10200                        cx,
10201                    );
10202                })
10203                .log_err();
10204        })
10205        .detach();
10206}
10207
10208#[derive(Debug)]
10209pub struct WorkspacePosition {
10210    pub window_bounds: Option<WindowBounds>,
10211    pub display: Option<Uuid>,
10212    pub centered_layout: bool,
10213}
10214
10215pub fn remote_workspace_position_from_db(
10216    connection_options: RemoteConnectionOptions,
10217    paths_to_open: &[PathBuf],
10218    cx: &App,
10219) -> Task<Result<WorkspacePosition>> {
10220    let paths = paths_to_open.to_vec();
10221    let db = WorkspaceDb::global(cx);
10222    let kvp = db::kvp::KeyValueStore::global(cx);
10223
10224    cx.background_spawn(async move {
10225        let remote_connection_id = db
10226            .get_or_create_remote_connection(connection_options)
10227            .await
10228            .context("fetching serialized ssh project")?;
10229        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10230
10231        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10232            (Some(WindowBounds::Windowed(bounds)), None)
10233        } else {
10234            let restorable_bounds = serialized_workspace
10235                .as_ref()
10236                .and_then(|workspace| {
10237                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10238                })
10239                .or_else(|| persistence::read_default_window_bounds(&kvp));
10240
10241            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10242                (Some(serialized_bounds), Some(serialized_display))
10243            } else {
10244                (None, None)
10245            }
10246        };
10247
10248        let centered_layout = serialized_workspace
10249            .as_ref()
10250            .map(|w| w.centered_layout)
10251            .unwrap_or(false);
10252
10253        Ok(WorkspacePosition {
10254            window_bounds,
10255            display,
10256            centered_layout,
10257        })
10258    })
10259}
10260
10261pub fn with_active_or_new_workspace(
10262    cx: &mut App,
10263    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10264) {
10265    match cx
10266        .active_window()
10267        .and_then(|w| w.downcast::<MultiWorkspace>())
10268    {
10269        Some(multi_workspace) => {
10270            cx.defer(move |cx| {
10271                multi_workspace
10272                    .update(cx, |multi_workspace, window, cx| {
10273                        let workspace = multi_workspace.workspace().clone();
10274                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10275                    })
10276                    .log_err();
10277            });
10278        }
10279        None => {
10280            let app_state = AppState::global(cx);
10281            if let Some(app_state) = app_state.upgrade() {
10282                open_new(
10283                    OpenOptions::default(),
10284                    app_state,
10285                    cx,
10286                    move |workspace, window, cx| f(workspace, window, cx),
10287                )
10288                .detach_and_log_err(cx);
10289            }
10290        }
10291    }
10292}
10293
10294/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10295/// key. This migration path only runs once per panel per workspace.
10296fn load_legacy_panel_size(
10297    panel_key: &str,
10298    dock_position: DockPosition,
10299    workspace: &Workspace,
10300    cx: &mut App,
10301) -> Option<Pixels> {
10302    #[derive(Deserialize)]
10303    struct LegacyPanelState {
10304        #[serde(default)]
10305        width: Option<Pixels>,
10306        #[serde(default)]
10307        height: Option<Pixels>,
10308    }
10309
10310    let workspace_id = workspace
10311        .database_id()
10312        .map(|id| i64::from(id).to_string())
10313        .or_else(|| workspace.session_id())?;
10314
10315    let legacy_key = match panel_key {
10316        "ProjectPanel" => {
10317            format!("{}-{:?}", "ProjectPanel", workspace_id)
10318        }
10319        "OutlinePanel" => {
10320            format!("{}-{:?}", "OutlinePanel", workspace_id)
10321        }
10322        "GitPanel" => {
10323            format!("{}-{:?}", "GitPanel", workspace_id)
10324        }
10325        "TerminalPanel" => {
10326            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10327        }
10328        _ => return None,
10329    };
10330
10331    let kvp = db::kvp::KeyValueStore::global(cx);
10332    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10333    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10334    let size = match dock_position {
10335        DockPosition::Bottom => state.height,
10336        DockPosition::Left | DockPosition::Right => state.width,
10337    }?;
10338
10339    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10340        .detach_and_log_err(cx);
10341
10342    Some(size)
10343}
10344
10345#[cfg(test)]
10346mod tests {
10347    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10348
10349    use super::*;
10350    use crate::{
10351        dock::{PanelEvent, test::TestPanel},
10352        item::{
10353            ItemBufferKind, ItemEvent,
10354            test::{TestItem, TestProjectItem},
10355        },
10356    };
10357    use fs::FakeFs;
10358    use gpui::{
10359        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10360        UpdateGlobal, VisualTestContext, px,
10361    };
10362    use project::{Project, ProjectEntryId};
10363    use serde_json::json;
10364    use settings::SettingsStore;
10365    use util::path;
10366    use util::rel_path::rel_path;
10367
10368    #[gpui::test]
10369    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10370        init_test(cx);
10371
10372        let fs = FakeFs::new(cx.executor());
10373        let project = Project::test(fs, [], cx).await;
10374        let (workspace, cx) =
10375            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10376
10377        // Adding an item with no ambiguity renders the tab without detail.
10378        let item1 = cx.new(|cx| {
10379            let mut item = TestItem::new(cx);
10380            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10381            item
10382        });
10383        workspace.update_in(cx, |workspace, window, cx| {
10384            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10385        });
10386        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10387
10388        // Adding an item that creates ambiguity increases the level of detail on
10389        // both tabs.
10390        let item2 = cx.new_window_entity(|_window, cx| {
10391            let mut item = TestItem::new(cx);
10392            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10393            item
10394        });
10395        workspace.update_in(cx, |workspace, window, cx| {
10396            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10397        });
10398        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10399        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10400
10401        // Adding an item that creates ambiguity increases the level of detail only
10402        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10403        // we stop at the highest detail available.
10404        let item3 = cx.new(|cx| {
10405            let mut item = TestItem::new(cx);
10406            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10407            item
10408        });
10409        workspace.update_in(cx, |workspace, window, cx| {
10410            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10411        });
10412        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10413        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10414        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10415    }
10416
10417    #[gpui::test]
10418    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10419        init_test(cx);
10420
10421        let fs = FakeFs::new(cx.executor());
10422        fs.insert_tree(
10423            "/root1",
10424            json!({
10425                "one.txt": "",
10426                "two.txt": "",
10427            }),
10428        )
10429        .await;
10430        fs.insert_tree(
10431            "/root2",
10432            json!({
10433                "three.txt": "",
10434            }),
10435        )
10436        .await;
10437
10438        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10439        let (workspace, cx) =
10440            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10441        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10442        let worktree_id = project.update(cx, |project, cx| {
10443            project.worktrees(cx).next().unwrap().read(cx).id()
10444        });
10445
10446        let item1 = cx.new(|cx| {
10447            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10448        });
10449        let item2 = cx.new(|cx| {
10450            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10451        });
10452
10453        // Add an item to an empty pane
10454        workspace.update_in(cx, |workspace, window, cx| {
10455            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10456        });
10457        project.update(cx, |project, cx| {
10458            assert_eq!(
10459                project.active_entry(),
10460                project
10461                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10462                    .map(|e| e.id)
10463            );
10464        });
10465        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10466
10467        // Add a second item to a non-empty pane
10468        workspace.update_in(cx, |workspace, window, cx| {
10469            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10470        });
10471        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10472        project.update(cx, |project, cx| {
10473            assert_eq!(
10474                project.active_entry(),
10475                project
10476                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10477                    .map(|e| e.id)
10478            );
10479        });
10480
10481        // Close the active item
10482        pane.update_in(cx, |pane, window, cx| {
10483            pane.close_active_item(&Default::default(), window, cx)
10484        })
10485        .await
10486        .unwrap();
10487        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10488        project.update(cx, |project, cx| {
10489            assert_eq!(
10490                project.active_entry(),
10491                project
10492                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10493                    .map(|e| e.id)
10494            );
10495        });
10496
10497        // Add a project folder
10498        project
10499            .update(cx, |project, cx| {
10500                project.find_or_create_worktree("root2", true, cx)
10501            })
10502            .await
10503            .unwrap();
10504        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10505
10506        // Remove a project folder
10507        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10508        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10509    }
10510
10511    #[gpui::test]
10512    async fn test_close_window(cx: &mut TestAppContext) {
10513        init_test(cx);
10514
10515        let fs = FakeFs::new(cx.executor());
10516        fs.insert_tree("/root", json!({ "one": "" })).await;
10517
10518        let project = Project::test(fs, ["root".as_ref()], cx).await;
10519        let (workspace, cx) =
10520            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10521
10522        // When there are no dirty items, there's nothing to do.
10523        let item1 = cx.new(TestItem::new);
10524        workspace.update_in(cx, |w, window, cx| {
10525            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10526        });
10527        let task = workspace.update_in(cx, |w, window, cx| {
10528            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10529        });
10530        assert!(task.await.unwrap());
10531
10532        // When there are dirty untitled items, prompt to save each one. If the user
10533        // cancels any prompt, then abort.
10534        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10535        let item3 = cx.new(|cx| {
10536            TestItem::new(cx)
10537                .with_dirty(true)
10538                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10539        });
10540        workspace.update_in(cx, |w, window, cx| {
10541            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10542            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10543        });
10544        let task = workspace.update_in(cx, |w, window, cx| {
10545            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10546        });
10547        cx.executor().run_until_parked();
10548        cx.simulate_prompt_answer("Cancel"); // cancel save all
10549        cx.executor().run_until_parked();
10550        assert!(!cx.has_pending_prompt());
10551        assert!(!task.await.unwrap());
10552    }
10553
10554    #[gpui::test]
10555    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10556        init_test(cx);
10557
10558        let fs = FakeFs::new(cx.executor());
10559        fs.insert_tree("/root", json!({ "one": "" })).await;
10560
10561        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10562        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10563        let multi_workspace_handle =
10564            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10565        cx.run_until_parked();
10566
10567        let workspace_a = multi_workspace_handle
10568            .read_with(cx, |mw, _| mw.workspace().clone())
10569            .unwrap();
10570
10571        let workspace_b = multi_workspace_handle
10572            .update(cx, |mw, window, cx| {
10573                mw.test_add_workspace(project_b, window, cx)
10574            })
10575            .unwrap();
10576
10577        // Activate workspace A
10578        multi_workspace_handle
10579            .update(cx, |mw, window, cx| {
10580                mw.activate_index(0, window, cx);
10581            })
10582            .unwrap();
10583
10584        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10585
10586        // Workspace A has a clean item
10587        let item_a = cx.new(TestItem::new);
10588        workspace_a.update_in(cx, |w, window, cx| {
10589            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10590        });
10591
10592        // Workspace B has a dirty item
10593        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10594        workspace_b.update_in(cx, |w, window, cx| {
10595            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10596        });
10597
10598        // Verify workspace A is active
10599        multi_workspace_handle
10600            .read_with(cx, |mw, _| {
10601                assert_eq!(mw.active_workspace_index(), 0);
10602            })
10603            .unwrap();
10604
10605        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10606        multi_workspace_handle
10607            .update(cx, |mw, window, cx| {
10608                mw.close_window(&CloseWindow, window, cx);
10609            })
10610            .unwrap();
10611        cx.run_until_parked();
10612
10613        // Workspace B should now be active since it has dirty items that need attention
10614        multi_workspace_handle
10615            .read_with(cx, |mw, _| {
10616                assert_eq!(
10617                    mw.active_workspace_index(),
10618                    1,
10619                    "workspace B should be activated when it prompts"
10620                );
10621            })
10622            .unwrap();
10623
10624        // User cancels the save prompt from workspace B
10625        cx.simulate_prompt_answer("Cancel");
10626        cx.run_until_parked();
10627
10628        // Window should still exist because workspace B's close was cancelled
10629        assert!(
10630            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10631            "window should still exist after cancelling one workspace's close"
10632        );
10633    }
10634
10635    #[gpui::test]
10636    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10637        init_test(cx);
10638
10639        // Register TestItem as a serializable item
10640        cx.update(|cx| {
10641            register_serializable_item::<TestItem>(cx);
10642        });
10643
10644        let fs = FakeFs::new(cx.executor());
10645        fs.insert_tree("/root", json!({ "one": "" })).await;
10646
10647        let project = Project::test(fs, ["root".as_ref()], cx).await;
10648        let (workspace, cx) =
10649            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10650
10651        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10652        let item1 = cx.new(|cx| {
10653            TestItem::new(cx)
10654                .with_dirty(true)
10655                .with_serialize(|| Some(Task::ready(Ok(()))))
10656        });
10657        let item2 = cx.new(|cx| {
10658            TestItem::new(cx)
10659                .with_dirty(true)
10660                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10661                .with_serialize(|| Some(Task::ready(Ok(()))))
10662        });
10663        workspace.update_in(cx, |w, window, cx| {
10664            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10665            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10666        });
10667        let task = workspace.update_in(cx, |w, window, cx| {
10668            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10669        });
10670        assert!(task.await.unwrap());
10671    }
10672
10673    #[gpui::test]
10674    async fn test_close_pane_items(cx: &mut TestAppContext) {
10675        init_test(cx);
10676
10677        let fs = FakeFs::new(cx.executor());
10678
10679        let project = Project::test(fs, None, cx).await;
10680        let (workspace, cx) =
10681            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10682
10683        let item1 = cx.new(|cx| {
10684            TestItem::new(cx)
10685                .with_dirty(true)
10686                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10687        });
10688        let item2 = cx.new(|cx| {
10689            TestItem::new(cx)
10690                .with_dirty(true)
10691                .with_conflict(true)
10692                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10693        });
10694        let item3 = cx.new(|cx| {
10695            TestItem::new(cx)
10696                .with_dirty(true)
10697                .with_conflict(true)
10698                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10699        });
10700        let item4 = cx.new(|cx| {
10701            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10702                let project_item = TestProjectItem::new_untitled(cx);
10703                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10704                project_item
10705            }])
10706        });
10707        let pane = workspace.update_in(cx, |workspace, window, cx| {
10708            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10709            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10710            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10711            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10712            workspace.active_pane().clone()
10713        });
10714
10715        let close_items = pane.update_in(cx, |pane, window, cx| {
10716            pane.activate_item(1, true, true, window, cx);
10717            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10718            let item1_id = item1.item_id();
10719            let item3_id = item3.item_id();
10720            let item4_id = item4.item_id();
10721            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10722                [item1_id, item3_id, item4_id].contains(&id)
10723            })
10724        });
10725        cx.executor().run_until_parked();
10726
10727        assert!(cx.has_pending_prompt());
10728        cx.simulate_prompt_answer("Save all");
10729
10730        cx.executor().run_until_parked();
10731
10732        // Item 1 is saved. There's a prompt to save item 3.
10733        pane.update(cx, |pane, cx| {
10734            assert_eq!(item1.read(cx).save_count, 1);
10735            assert_eq!(item1.read(cx).save_as_count, 0);
10736            assert_eq!(item1.read(cx).reload_count, 0);
10737            assert_eq!(pane.items_len(), 3);
10738            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10739        });
10740        assert!(cx.has_pending_prompt());
10741
10742        // Cancel saving item 3.
10743        cx.simulate_prompt_answer("Discard");
10744        cx.executor().run_until_parked();
10745
10746        // Item 3 is reloaded. There's a prompt to save item 4.
10747        pane.update(cx, |pane, cx| {
10748            assert_eq!(item3.read(cx).save_count, 0);
10749            assert_eq!(item3.read(cx).save_as_count, 0);
10750            assert_eq!(item3.read(cx).reload_count, 1);
10751            assert_eq!(pane.items_len(), 2);
10752            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10753        });
10754
10755        // There's a prompt for a path for item 4.
10756        cx.simulate_new_path_selection(|_| Some(Default::default()));
10757        close_items.await.unwrap();
10758
10759        // The requested items are closed.
10760        pane.update(cx, |pane, cx| {
10761            assert_eq!(item4.read(cx).save_count, 0);
10762            assert_eq!(item4.read(cx).save_as_count, 1);
10763            assert_eq!(item4.read(cx).reload_count, 0);
10764            assert_eq!(pane.items_len(), 1);
10765            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10766        });
10767    }
10768
10769    #[gpui::test]
10770    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10771        init_test(cx);
10772
10773        let fs = FakeFs::new(cx.executor());
10774        let project = Project::test(fs, [], cx).await;
10775        let (workspace, cx) =
10776            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10777
10778        // Create several workspace items with single project entries, and two
10779        // workspace items with multiple project entries.
10780        let single_entry_items = (0..=4)
10781            .map(|project_entry_id| {
10782                cx.new(|cx| {
10783                    TestItem::new(cx)
10784                        .with_dirty(true)
10785                        .with_project_items(&[dirty_project_item(
10786                            project_entry_id,
10787                            &format!("{project_entry_id}.txt"),
10788                            cx,
10789                        )])
10790                })
10791            })
10792            .collect::<Vec<_>>();
10793        let item_2_3 = cx.new(|cx| {
10794            TestItem::new(cx)
10795                .with_dirty(true)
10796                .with_buffer_kind(ItemBufferKind::Multibuffer)
10797                .with_project_items(&[
10798                    single_entry_items[2].read(cx).project_items[0].clone(),
10799                    single_entry_items[3].read(cx).project_items[0].clone(),
10800                ])
10801        });
10802        let item_3_4 = cx.new(|cx| {
10803            TestItem::new(cx)
10804                .with_dirty(true)
10805                .with_buffer_kind(ItemBufferKind::Multibuffer)
10806                .with_project_items(&[
10807                    single_entry_items[3].read(cx).project_items[0].clone(),
10808                    single_entry_items[4].read(cx).project_items[0].clone(),
10809                ])
10810        });
10811
10812        // Create two panes that contain the following project entries:
10813        //   left pane:
10814        //     multi-entry items:   (2, 3)
10815        //     single-entry items:  0, 2, 3, 4
10816        //   right pane:
10817        //     single-entry items:  4, 1
10818        //     multi-entry items:   (3, 4)
10819        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10820            let left_pane = workspace.active_pane().clone();
10821            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10822            workspace.add_item_to_active_pane(
10823                single_entry_items[0].boxed_clone(),
10824                None,
10825                true,
10826                window,
10827                cx,
10828            );
10829            workspace.add_item_to_active_pane(
10830                single_entry_items[2].boxed_clone(),
10831                None,
10832                true,
10833                window,
10834                cx,
10835            );
10836            workspace.add_item_to_active_pane(
10837                single_entry_items[3].boxed_clone(),
10838                None,
10839                true,
10840                window,
10841                cx,
10842            );
10843            workspace.add_item_to_active_pane(
10844                single_entry_items[4].boxed_clone(),
10845                None,
10846                true,
10847                window,
10848                cx,
10849            );
10850
10851            let right_pane =
10852                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10853
10854            let boxed_clone = single_entry_items[1].boxed_clone();
10855            let right_pane = window.spawn(cx, async move |cx| {
10856                right_pane.await.inspect(|right_pane| {
10857                    right_pane
10858                        .update_in(cx, |pane, window, cx| {
10859                            pane.add_item(boxed_clone, true, true, None, window, cx);
10860                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10861                        })
10862                        .unwrap();
10863                })
10864            });
10865
10866            (left_pane, right_pane)
10867        });
10868        let right_pane = right_pane.await.unwrap();
10869        cx.focus(&right_pane);
10870
10871        let close = right_pane.update_in(cx, |pane, window, cx| {
10872            pane.close_all_items(&CloseAllItems::default(), window, cx)
10873                .unwrap()
10874        });
10875        cx.executor().run_until_parked();
10876
10877        let msg = cx.pending_prompt().unwrap().0;
10878        assert!(msg.contains("1.txt"));
10879        assert!(!msg.contains("2.txt"));
10880        assert!(!msg.contains("3.txt"));
10881        assert!(!msg.contains("4.txt"));
10882
10883        // With best-effort close, cancelling item 1 keeps it open but items 4
10884        // and (3,4) still close since their entries exist in left pane.
10885        cx.simulate_prompt_answer("Cancel");
10886        close.await;
10887
10888        right_pane.read_with(cx, |pane, _| {
10889            assert_eq!(pane.items_len(), 1);
10890        });
10891
10892        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10893        left_pane
10894            .update_in(cx, |left_pane, window, cx| {
10895                left_pane.close_item_by_id(
10896                    single_entry_items[3].entity_id(),
10897                    SaveIntent::Skip,
10898                    window,
10899                    cx,
10900                )
10901            })
10902            .await
10903            .unwrap();
10904
10905        let close = left_pane.update_in(cx, |pane, window, cx| {
10906            pane.close_all_items(&CloseAllItems::default(), window, cx)
10907                .unwrap()
10908        });
10909        cx.executor().run_until_parked();
10910
10911        let details = cx.pending_prompt().unwrap().1;
10912        assert!(details.contains("0.txt"));
10913        assert!(details.contains("3.txt"));
10914        assert!(details.contains("4.txt"));
10915        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10916        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10917        // assert!(!details.contains("2.txt"));
10918
10919        cx.simulate_prompt_answer("Save all");
10920        cx.executor().run_until_parked();
10921        close.await;
10922
10923        left_pane.read_with(cx, |pane, _| {
10924            assert_eq!(pane.items_len(), 0);
10925        });
10926    }
10927
10928    #[gpui::test]
10929    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10930        init_test(cx);
10931
10932        let fs = FakeFs::new(cx.executor());
10933        let project = Project::test(fs, [], cx).await;
10934        let (workspace, cx) =
10935            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10936        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10937
10938        let item = cx.new(|cx| {
10939            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10940        });
10941        let item_id = item.entity_id();
10942        workspace.update_in(cx, |workspace, window, cx| {
10943            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10944        });
10945
10946        // Autosave on window change.
10947        item.update(cx, |item, cx| {
10948            SettingsStore::update_global(cx, |settings, cx| {
10949                settings.update_user_settings(cx, |settings| {
10950                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10951                })
10952            });
10953            item.is_dirty = true;
10954        });
10955
10956        // Deactivating the window saves the file.
10957        cx.deactivate_window();
10958        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10959
10960        // Re-activating the window doesn't save the file.
10961        cx.update(|window, _| window.activate_window());
10962        cx.executor().run_until_parked();
10963        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10964
10965        // Autosave on focus change.
10966        item.update_in(cx, |item, window, cx| {
10967            cx.focus_self(window);
10968            SettingsStore::update_global(cx, |settings, cx| {
10969                settings.update_user_settings(cx, |settings| {
10970                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10971                })
10972            });
10973            item.is_dirty = true;
10974        });
10975        // Blurring the item saves the file.
10976        item.update_in(cx, |_, window, _| window.blur());
10977        cx.executor().run_until_parked();
10978        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
10979
10980        // Deactivating the window still saves the file.
10981        item.update_in(cx, |item, window, cx| {
10982            cx.focus_self(window);
10983            item.is_dirty = true;
10984        });
10985        cx.deactivate_window();
10986        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
10987
10988        // Autosave after delay.
10989        item.update(cx, |item, cx| {
10990            SettingsStore::update_global(cx, |settings, cx| {
10991                settings.update_user_settings(cx, |settings| {
10992                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
10993                        milliseconds: 500.into(),
10994                    });
10995                })
10996            });
10997            item.is_dirty = true;
10998            cx.emit(ItemEvent::Edit);
10999        });
11000
11001        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11002        cx.executor().advance_clock(Duration::from_millis(250));
11003        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11004
11005        // After delay expires, the file is saved.
11006        cx.executor().advance_clock(Duration::from_millis(250));
11007        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11008
11009        // Autosave after delay, should save earlier than delay if tab is closed
11010        item.update(cx, |item, cx| {
11011            item.is_dirty = true;
11012            cx.emit(ItemEvent::Edit);
11013        });
11014        cx.executor().advance_clock(Duration::from_millis(250));
11015        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11016
11017        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11018        pane.update_in(cx, |pane, window, cx| {
11019            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11020        })
11021        .await
11022        .unwrap();
11023        assert!(!cx.has_pending_prompt());
11024        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11025
11026        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11027        workspace.update_in(cx, |workspace, window, cx| {
11028            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11029        });
11030        item.update_in(cx, |item, _window, cx| {
11031            item.is_dirty = true;
11032            for project_item in &mut item.project_items {
11033                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11034            }
11035        });
11036        cx.run_until_parked();
11037        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11038
11039        // Autosave on focus change, ensuring closing the tab counts as such.
11040        item.update(cx, |item, cx| {
11041            SettingsStore::update_global(cx, |settings, cx| {
11042                settings.update_user_settings(cx, |settings| {
11043                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11044                })
11045            });
11046            item.is_dirty = true;
11047            for project_item in &mut item.project_items {
11048                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11049            }
11050        });
11051
11052        pane.update_in(cx, |pane, window, cx| {
11053            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11054        })
11055        .await
11056        .unwrap();
11057        assert!(!cx.has_pending_prompt());
11058        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11059
11060        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11061        workspace.update_in(cx, |workspace, window, cx| {
11062            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11063        });
11064        item.update_in(cx, |item, window, cx| {
11065            item.project_items[0].update(cx, |item, _| {
11066                item.entry_id = None;
11067            });
11068            item.is_dirty = true;
11069            window.blur();
11070        });
11071        cx.run_until_parked();
11072        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11073
11074        // Ensure autosave is prevented for deleted files also when closing the buffer.
11075        let _close_items = pane.update_in(cx, |pane, window, cx| {
11076            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11077        });
11078        cx.run_until_parked();
11079        assert!(cx.has_pending_prompt());
11080        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11081    }
11082
11083    #[gpui::test]
11084    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11085        init_test(cx);
11086
11087        let fs = FakeFs::new(cx.executor());
11088        let project = Project::test(fs, [], cx).await;
11089        let (workspace, cx) =
11090            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11091
11092        // Create a multibuffer-like item with two child focus handles,
11093        // simulating individual buffer editors within a multibuffer.
11094        let item = cx.new(|cx| {
11095            TestItem::new(cx)
11096                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11097                .with_child_focus_handles(2, cx)
11098        });
11099        workspace.update_in(cx, |workspace, window, cx| {
11100            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11101        });
11102
11103        // Set autosave to OnFocusChange and focus the first child handle,
11104        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11105        item.update_in(cx, |item, window, cx| {
11106            SettingsStore::update_global(cx, |settings, cx| {
11107                settings.update_user_settings(cx, |settings| {
11108                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11109                })
11110            });
11111            item.is_dirty = true;
11112            window.focus(&item.child_focus_handles[0], cx);
11113        });
11114        cx.executor().run_until_parked();
11115        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11116
11117        // Moving focus from one child to another within the same item should
11118        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11119        item.update_in(cx, |item, window, cx| {
11120            window.focus(&item.child_focus_handles[1], cx);
11121        });
11122        cx.executor().run_until_parked();
11123        item.read_with(cx, |item, _| {
11124            assert_eq!(
11125                item.save_count, 0,
11126                "Switching focus between children within the same item should not autosave"
11127            );
11128        });
11129
11130        // Blurring the item saves the file. This is the core regression scenario:
11131        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11132        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11133        // the leaf is always a child focus handle, so `on_blur` never detected
11134        // focus leaving the item.
11135        item.update_in(cx, |_, window, _| window.blur());
11136        cx.executor().run_until_parked();
11137        item.read_with(cx, |item, _| {
11138            assert_eq!(
11139                item.save_count, 1,
11140                "Blurring should trigger autosave when focus was on a child of the item"
11141            );
11142        });
11143
11144        // Deactivating the window should also trigger autosave when a child of
11145        // the multibuffer item currently owns focus.
11146        item.update_in(cx, |item, window, cx| {
11147            item.is_dirty = true;
11148            window.focus(&item.child_focus_handles[0], cx);
11149        });
11150        cx.executor().run_until_parked();
11151        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11152
11153        cx.deactivate_window();
11154        item.read_with(cx, |item, _| {
11155            assert_eq!(
11156                item.save_count, 2,
11157                "Deactivating window should trigger autosave when focus was on a child"
11158            );
11159        });
11160    }
11161
11162    #[gpui::test]
11163    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11164        init_test(cx);
11165
11166        let fs = FakeFs::new(cx.executor());
11167
11168        let project = Project::test(fs, [], cx).await;
11169        let (workspace, cx) =
11170            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11171
11172        let item = cx.new(|cx| {
11173            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11174        });
11175        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11176        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11177        let toolbar_notify_count = Rc::new(RefCell::new(0));
11178
11179        workspace.update_in(cx, |workspace, window, cx| {
11180            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11181            let toolbar_notification_count = toolbar_notify_count.clone();
11182            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11183                *toolbar_notification_count.borrow_mut() += 1
11184            })
11185            .detach();
11186        });
11187
11188        pane.read_with(cx, |pane, _| {
11189            assert!(!pane.can_navigate_backward());
11190            assert!(!pane.can_navigate_forward());
11191        });
11192
11193        item.update_in(cx, |item, _, cx| {
11194            item.set_state("one".to_string(), cx);
11195        });
11196
11197        // Toolbar must be notified to re-render the navigation buttons
11198        assert_eq!(*toolbar_notify_count.borrow(), 1);
11199
11200        pane.read_with(cx, |pane, _| {
11201            assert!(pane.can_navigate_backward());
11202            assert!(!pane.can_navigate_forward());
11203        });
11204
11205        workspace
11206            .update_in(cx, |workspace, window, cx| {
11207                workspace.go_back(pane.downgrade(), window, cx)
11208            })
11209            .await
11210            .unwrap();
11211
11212        assert_eq!(*toolbar_notify_count.borrow(), 2);
11213        pane.read_with(cx, |pane, _| {
11214            assert!(!pane.can_navigate_backward());
11215            assert!(pane.can_navigate_forward());
11216        });
11217    }
11218
11219    /// Tests that the navigation history deduplicates entries for the same item.
11220    ///
11221    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11222    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11223    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11224    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11225    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11226    ///
11227    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11228    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11229    #[gpui::test]
11230    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11231        init_test(cx);
11232
11233        let fs = FakeFs::new(cx.executor());
11234        let project = Project::test(fs, [], cx).await;
11235        let (workspace, cx) =
11236            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11237
11238        let item_a = cx.new(|cx| {
11239            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11240        });
11241        let item_b = cx.new(|cx| {
11242            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11243        });
11244        let item_c = cx.new(|cx| {
11245            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11246        });
11247
11248        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11249
11250        workspace.update_in(cx, |workspace, window, cx| {
11251            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11252            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11253            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11254        });
11255
11256        workspace.update_in(cx, |workspace, window, cx| {
11257            workspace.activate_item(&item_a, false, false, window, cx);
11258        });
11259        cx.run_until_parked();
11260
11261        workspace.update_in(cx, |workspace, window, cx| {
11262            workspace.activate_item(&item_b, false, false, window, cx);
11263        });
11264        cx.run_until_parked();
11265
11266        workspace.update_in(cx, |workspace, window, cx| {
11267            workspace.activate_item(&item_a, false, false, window, cx);
11268        });
11269        cx.run_until_parked();
11270
11271        workspace.update_in(cx, |workspace, window, cx| {
11272            workspace.activate_item(&item_b, false, false, window, cx);
11273        });
11274        cx.run_until_parked();
11275
11276        workspace.update_in(cx, |workspace, window, cx| {
11277            workspace.activate_item(&item_a, false, false, window, cx);
11278        });
11279        cx.run_until_parked();
11280
11281        workspace.update_in(cx, |workspace, window, cx| {
11282            workspace.activate_item(&item_b, false, false, window, cx);
11283        });
11284        cx.run_until_parked();
11285
11286        workspace.update_in(cx, |workspace, window, cx| {
11287            workspace.activate_item(&item_c, false, false, window, cx);
11288        });
11289        cx.run_until_parked();
11290
11291        let backward_count = pane.read_with(cx, |pane, cx| {
11292            let mut count = 0;
11293            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11294                count += 1;
11295            });
11296            count
11297        });
11298        assert!(
11299            backward_count <= 4,
11300            "Should have at most 4 entries, got {}",
11301            backward_count
11302        );
11303
11304        workspace
11305            .update_in(cx, |workspace, window, cx| {
11306                workspace.go_back(pane.downgrade(), window, cx)
11307            })
11308            .await
11309            .unwrap();
11310
11311        let active_item = workspace.read_with(cx, |workspace, cx| {
11312            workspace.active_item(cx).unwrap().item_id()
11313        });
11314        assert_eq!(
11315            active_item,
11316            item_b.entity_id(),
11317            "After first go_back, should be at item B"
11318        );
11319
11320        workspace
11321            .update_in(cx, |workspace, window, cx| {
11322                workspace.go_back(pane.downgrade(), window, cx)
11323            })
11324            .await
11325            .unwrap();
11326
11327        let active_item = workspace.read_with(cx, |workspace, cx| {
11328            workspace.active_item(cx).unwrap().item_id()
11329        });
11330        assert_eq!(
11331            active_item,
11332            item_a.entity_id(),
11333            "After second go_back, should be at item A"
11334        );
11335
11336        pane.read_with(cx, |pane, _| {
11337            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11338        });
11339    }
11340
11341    #[gpui::test]
11342    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11343        init_test(cx);
11344        let fs = FakeFs::new(cx.executor());
11345        let project = Project::test(fs, [], cx).await;
11346        let (multi_workspace, cx) =
11347            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11348        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11349
11350        workspace.update_in(cx, |workspace, window, cx| {
11351            let first_item = cx.new(|cx| {
11352                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11353            });
11354            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11355            workspace.split_pane(
11356                workspace.active_pane().clone(),
11357                SplitDirection::Right,
11358                window,
11359                cx,
11360            );
11361            workspace.split_pane(
11362                workspace.active_pane().clone(),
11363                SplitDirection::Right,
11364                window,
11365                cx,
11366            );
11367        });
11368
11369        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11370            let panes = workspace.center.panes();
11371            assert!(panes.len() >= 2);
11372            (
11373                panes.first().expect("at least one pane").entity_id(),
11374                panes.last().expect("at least one pane").entity_id(),
11375            )
11376        });
11377
11378        workspace.update_in(cx, |workspace, window, cx| {
11379            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11380        });
11381        workspace.update(cx, |workspace, _| {
11382            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11383            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11384        });
11385
11386        cx.dispatch_action(ActivateLastPane);
11387
11388        workspace.update(cx, |workspace, _| {
11389            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11390        });
11391    }
11392
11393    #[gpui::test]
11394    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11395        init_test(cx);
11396        let fs = FakeFs::new(cx.executor());
11397
11398        let project = Project::test(fs, [], cx).await;
11399        let (workspace, cx) =
11400            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11401
11402        let panel = workspace.update_in(cx, |workspace, window, cx| {
11403            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11404            workspace.add_panel(panel.clone(), window, cx);
11405
11406            workspace
11407                .right_dock()
11408                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11409
11410            panel
11411        });
11412
11413        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11414        pane.update_in(cx, |pane, window, cx| {
11415            let item = cx.new(TestItem::new);
11416            pane.add_item(Box::new(item), true, true, None, window, cx);
11417        });
11418
11419        // Transfer focus from center to panel
11420        workspace.update_in(cx, |workspace, window, cx| {
11421            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11422        });
11423
11424        workspace.update_in(cx, |workspace, window, cx| {
11425            assert!(workspace.right_dock().read(cx).is_open());
11426            assert!(!panel.is_zoomed(window, cx));
11427            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11428        });
11429
11430        // Transfer focus from panel to center
11431        workspace.update_in(cx, |workspace, window, cx| {
11432            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11433        });
11434
11435        workspace.update_in(cx, |workspace, window, cx| {
11436            assert!(workspace.right_dock().read(cx).is_open());
11437            assert!(!panel.is_zoomed(window, cx));
11438            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11439            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11440        });
11441
11442        // Close the dock
11443        workspace.update_in(cx, |workspace, window, cx| {
11444            workspace.toggle_dock(DockPosition::Right, window, cx);
11445        });
11446
11447        workspace.update_in(cx, |workspace, window, cx| {
11448            assert!(!workspace.right_dock().read(cx).is_open());
11449            assert!(!panel.is_zoomed(window, cx));
11450            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11451            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11452        });
11453
11454        // Open the dock
11455        workspace.update_in(cx, |workspace, window, cx| {
11456            workspace.toggle_dock(DockPosition::Right, window, cx);
11457        });
11458
11459        workspace.update_in(cx, |workspace, window, cx| {
11460            assert!(workspace.right_dock().read(cx).is_open());
11461            assert!(!panel.is_zoomed(window, cx));
11462            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11463        });
11464
11465        // Focus and zoom panel
11466        panel.update_in(cx, |panel, window, cx| {
11467            cx.focus_self(window);
11468            panel.set_zoomed(true, window, cx)
11469        });
11470
11471        workspace.update_in(cx, |workspace, window, cx| {
11472            assert!(workspace.right_dock().read(cx).is_open());
11473            assert!(panel.is_zoomed(window, cx));
11474            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11475        });
11476
11477        // Transfer focus to the center closes the dock
11478        workspace.update_in(cx, |workspace, window, cx| {
11479            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11480        });
11481
11482        workspace.update_in(cx, |workspace, window, cx| {
11483            assert!(!workspace.right_dock().read(cx).is_open());
11484            assert!(panel.is_zoomed(window, cx));
11485            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11486        });
11487
11488        // Transferring focus back to the panel keeps it zoomed
11489        workspace.update_in(cx, |workspace, window, cx| {
11490            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11491        });
11492
11493        workspace.update_in(cx, |workspace, window, cx| {
11494            assert!(workspace.right_dock().read(cx).is_open());
11495            assert!(panel.is_zoomed(window, cx));
11496            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11497        });
11498
11499        // Close the dock while it is zoomed
11500        workspace.update_in(cx, |workspace, window, cx| {
11501            workspace.toggle_dock(DockPosition::Right, window, cx)
11502        });
11503
11504        workspace.update_in(cx, |workspace, window, cx| {
11505            assert!(!workspace.right_dock().read(cx).is_open());
11506            assert!(panel.is_zoomed(window, cx));
11507            assert!(workspace.zoomed.is_none());
11508            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11509        });
11510
11511        // Opening the dock, when it's zoomed, retains focus
11512        workspace.update_in(cx, |workspace, window, cx| {
11513            workspace.toggle_dock(DockPosition::Right, window, cx)
11514        });
11515
11516        workspace.update_in(cx, |workspace, window, cx| {
11517            assert!(workspace.right_dock().read(cx).is_open());
11518            assert!(panel.is_zoomed(window, cx));
11519            assert!(workspace.zoomed.is_some());
11520            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11521        });
11522
11523        // Unzoom and close the panel, zoom the active pane.
11524        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11525        workspace.update_in(cx, |workspace, window, cx| {
11526            workspace.toggle_dock(DockPosition::Right, window, cx)
11527        });
11528        pane.update_in(cx, |pane, window, cx| {
11529            pane.toggle_zoom(&Default::default(), window, cx)
11530        });
11531
11532        // Opening a dock unzooms the pane.
11533        workspace.update_in(cx, |workspace, window, cx| {
11534            workspace.toggle_dock(DockPosition::Right, window, cx)
11535        });
11536        workspace.update_in(cx, |workspace, window, cx| {
11537            let pane = pane.read(cx);
11538            assert!(!pane.is_zoomed());
11539            assert!(!pane.focus_handle(cx).is_focused(window));
11540            assert!(workspace.right_dock().read(cx).is_open());
11541            assert!(workspace.zoomed.is_none());
11542        });
11543    }
11544
11545    #[gpui::test]
11546    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11547        init_test(cx);
11548        let fs = FakeFs::new(cx.executor());
11549
11550        let project = Project::test(fs, [], cx).await;
11551        let (workspace, cx) =
11552            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11553
11554        let panel = workspace.update_in(cx, |workspace, window, cx| {
11555            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11556            workspace.add_panel(panel.clone(), window, cx);
11557            panel
11558        });
11559
11560        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11561        pane.update_in(cx, |pane, window, cx| {
11562            let item = cx.new(TestItem::new);
11563            pane.add_item(Box::new(item), true, true, None, window, cx);
11564        });
11565
11566        // Enable close_panel_on_toggle
11567        cx.update_global(|store: &mut SettingsStore, cx| {
11568            store.update_user_settings(cx, |settings| {
11569                settings.workspace.close_panel_on_toggle = Some(true);
11570            });
11571        });
11572
11573        // Panel starts closed. Toggling should open and focus it.
11574        workspace.update_in(cx, |workspace, window, cx| {
11575            assert!(!workspace.right_dock().read(cx).is_open());
11576            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11577        });
11578
11579        workspace.update_in(cx, |workspace, window, cx| {
11580            assert!(
11581                workspace.right_dock().read(cx).is_open(),
11582                "Dock should be open after toggling from center"
11583            );
11584            assert!(
11585                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11586                "Panel should be focused after toggling from center"
11587            );
11588        });
11589
11590        // Panel is open and focused. Toggling should close the panel and
11591        // return focus to the center.
11592        workspace.update_in(cx, |workspace, window, cx| {
11593            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11594        });
11595
11596        workspace.update_in(cx, |workspace, window, cx| {
11597            assert!(
11598                !workspace.right_dock().read(cx).is_open(),
11599                "Dock should be closed after toggling from focused panel"
11600            );
11601            assert!(
11602                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11603                "Panel should not be focused after toggling from focused panel"
11604            );
11605        });
11606
11607        // Open the dock and focus something else so the panel is open but not
11608        // focused. Toggling should focus the panel (not close it).
11609        workspace.update_in(cx, |workspace, window, cx| {
11610            workspace
11611                .right_dock()
11612                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11613            window.focus(&pane.read(cx).focus_handle(cx), cx);
11614        });
11615
11616        workspace.update_in(cx, |workspace, window, cx| {
11617            assert!(workspace.right_dock().read(cx).is_open());
11618            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11619            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11620        });
11621
11622        workspace.update_in(cx, |workspace, window, cx| {
11623            assert!(
11624                workspace.right_dock().read(cx).is_open(),
11625                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11626            );
11627            assert!(
11628                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11629                "Panel should be focused after toggling an open-but-unfocused panel"
11630            );
11631        });
11632
11633        // Now disable the setting and verify the original behavior: toggling
11634        // from a focused panel moves focus to center but leaves the dock open.
11635        cx.update_global(|store: &mut SettingsStore, cx| {
11636            store.update_user_settings(cx, |settings| {
11637                settings.workspace.close_panel_on_toggle = Some(false);
11638            });
11639        });
11640
11641        workspace.update_in(cx, |workspace, window, cx| {
11642            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11643        });
11644
11645        workspace.update_in(cx, |workspace, window, cx| {
11646            assert!(
11647                workspace.right_dock().read(cx).is_open(),
11648                "Dock should remain open when setting is disabled"
11649            );
11650            assert!(
11651                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11652                "Panel should not be focused after toggling with setting disabled"
11653            );
11654        });
11655    }
11656
11657    #[gpui::test]
11658    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11659        init_test(cx);
11660        let fs = FakeFs::new(cx.executor());
11661
11662        let project = Project::test(fs, [], cx).await;
11663        let (workspace, cx) =
11664            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11665
11666        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11667            workspace.active_pane().clone()
11668        });
11669
11670        // Add an item to the pane so it can be zoomed
11671        workspace.update_in(cx, |workspace, window, cx| {
11672            let item = cx.new(TestItem::new);
11673            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11674        });
11675
11676        // Initially not zoomed
11677        workspace.update_in(cx, |workspace, _window, cx| {
11678            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11679            assert!(
11680                workspace.zoomed.is_none(),
11681                "Workspace should track no zoomed pane"
11682            );
11683            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11684        });
11685
11686        // Zoom In
11687        pane.update_in(cx, |pane, window, cx| {
11688            pane.zoom_in(&crate::ZoomIn, window, cx);
11689        });
11690
11691        workspace.update_in(cx, |workspace, window, cx| {
11692            assert!(
11693                pane.read(cx).is_zoomed(),
11694                "Pane should be zoomed after ZoomIn"
11695            );
11696            assert!(
11697                workspace.zoomed.is_some(),
11698                "Workspace should track the zoomed pane"
11699            );
11700            assert!(
11701                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11702                "ZoomIn should focus the pane"
11703            );
11704        });
11705
11706        // Zoom In again is a no-op
11707        pane.update_in(cx, |pane, window, cx| {
11708            pane.zoom_in(&crate::ZoomIn, window, cx);
11709        });
11710
11711        workspace.update_in(cx, |workspace, window, cx| {
11712            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11713            assert!(
11714                workspace.zoomed.is_some(),
11715                "Workspace still tracks zoomed pane"
11716            );
11717            assert!(
11718                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11719                "Pane remains focused after repeated ZoomIn"
11720            );
11721        });
11722
11723        // Zoom Out
11724        pane.update_in(cx, |pane, window, cx| {
11725            pane.zoom_out(&crate::ZoomOut, window, cx);
11726        });
11727
11728        workspace.update_in(cx, |workspace, _window, cx| {
11729            assert!(
11730                !pane.read(cx).is_zoomed(),
11731                "Pane should unzoom after ZoomOut"
11732            );
11733            assert!(
11734                workspace.zoomed.is_none(),
11735                "Workspace clears zoom tracking after ZoomOut"
11736            );
11737        });
11738
11739        // Zoom Out again is a no-op
11740        pane.update_in(cx, |pane, window, cx| {
11741            pane.zoom_out(&crate::ZoomOut, window, cx);
11742        });
11743
11744        workspace.update_in(cx, |workspace, _window, cx| {
11745            assert!(
11746                !pane.read(cx).is_zoomed(),
11747                "Second ZoomOut keeps pane unzoomed"
11748            );
11749            assert!(
11750                workspace.zoomed.is_none(),
11751                "Workspace remains without zoomed pane"
11752            );
11753        });
11754    }
11755
11756    #[gpui::test]
11757    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
11758        init_test(cx);
11759        let fs = FakeFs::new(cx.executor());
11760
11761        let project = Project::test(fs, [], cx).await;
11762        let (workspace, cx) =
11763            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11764        workspace.update_in(cx, |workspace, window, cx| {
11765            // Open two docks
11766            let left_dock = workspace.dock_at_position(DockPosition::Left);
11767            let right_dock = workspace.dock_at_position(DockPosition::Right);
11768
11769            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11770            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11771
11772            assert!(left_dock.read(cx).is_open());
11773            assert!(right_dock.read(cx).is_open());
11774        });
11775
11776        workspace.update_in(cx, |workspace, window, cx| {
11777            // Toggle all docks - should close both
11778            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11779
11780            let left_dock = workspace.dock_at_position(DockPosition::Left);
11781            let right_dock = workspace.dock_at_position(DockPosition::Right);
11782            assert!(!left_dock.read(cx).is_open());
11783            assert!(!right_dock.read(cx).is_open());
11784        });
11785
11786        workspace.update_in(cx, |workspace, window, cx| {
11787            // Toggle again - should reopen both
11788            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11789
11790            let left_dock = workspace.dock_at_position(DockPosition::Left);
11791            let right_dock = workspace.dock_at_position(DockPosition::Right);
11792            assert!(left_dock.read(cx).is_open());
11793            assert!(right_dock.read(cx).is_open());
11794        });
11795    }
11796
11797    #[gpui::test]
11798    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
11799        init_test(cx);
11800        let fs = FakeFs::new(cx.executor());
11801
11802        let project = Project::test(fs, [], cx).await;
11803        let (workspace, cx) =
11804            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11805        workspace.update_in(cx, |workspace, window, cx| {
11806            // Open two docks
11807            let left_dock = workspace.dock_at_position(DockPosition::Left);
11808            let right_dock = workspace.dock_at_position(DockPosition::Right);
11809
11810            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11811            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
11812
11813            assert!(left_dock.read(cx).is_open());
11814            assert!(right_dock.read(cx).is_open());
11815        });
11816
11817        workspace.update_in(cx, |workspace, window, cx| {
11818            // Close them manually
11819            workspace.toggle_dock(DockPosition::Left, window, cx);
11820            workspace.toggle_dock(DockPosition::Right, window, cx);
11821
11822            let left_dock = workspace.dock_at_position(DockPosition::Left);
11823            let right_dock = workspace.dock_at_position(DockPosition::Right);
11824            assert!(!left_dock.read(cx).is_open());
11825            assert!(!right_dock.read(cx).is_open());
11826        });
11827
11828        workspace.update_in(cx, |workspace, window, cx| {
11829            // Toggle all docks - only last closed (right dock) should reopen
11830            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11831
11832            let left_dock = workspace.dock_at_position(DockPosition::Left);
11833            let right_dock = workspace.dock_at_position(DockPosition::Right);
11834            assert!(!left_dock.read(cx).is_open());
11835            assert!(right_dock.read(cx).is_open());
11836        });
11837    }
11838
11839    #[gpui::test]
11840    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
11841        init_test(cx);
11842        let fs = FakeFs::new(cx.executor());
11843        let project = Project::test(fs, [], cx).await;
11844        let (multi_workspace, cx) =
11845            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11846        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11847
11848        // Open two docks (left and right) with one panel each
11849        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
11850            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11851            workspace.add_panel(left_panel.clone(), window, cx);
11852
11853            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11854            workspace.add_panel(right_panel.clone(), window, cx);
11855
11856            workspace.toggle_dock(DockPosition::Left, window, cx);
11857            workspace.toggle_dock(DockPosition::Right, window, cx);
11858
11859            // Verify initial state
11860            assert!(
11861                workspace.left_dock().read(cx).is_open(),
11862                "Left dock should be open"
11863            );
11864            assert_eq!(
11865                workspace
11866                    .left_dock()
11867                    .read(cx)
11868                    .visible_panel()
11869                    .unwrap()
11870                    .panel_id(),
11871                left_panel.panel_id(),
11872                "Left panel should be visible in left dock"
11873            );
11874            assert!(
11875                workspace.right_dock().read(cx).is_open(),
11876                "Right dock should be open"
11877            );
11878            assert_eq!(
11879                workspace
11880                    .right_dock()
11881                    .read(cx)
11882                    .visible_panel()
11883                    .unwrap()
11884                    .panel_id(),
11885                right_panel.panel_id(),
11886                "Right panel should be visible in right dock"
11887            );
11888            assert!(
11889                !workspace.bottom_dock().read(cx).is_open(),
11890                "Bottom dock should be closed"
11891            );
11892
11893            (left_panel, right_panel)
11894        });
11895
11896        // Focus the left panel and move it to the next position (bottom dock)
11897        workspace.update_in(cx, |workspace, window, cx| {
11898            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
11899            assert!(
11900                left_panel.read(cx).focus_handle(cx).is_focused(window),
11901                "Left panel should be focused"
11902            );
11903        });
11904
11905        cx.dispatch_action(MoveFocusedPanelToNextPosition);
11906
11907        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
11908        workspace.update(cx, |workspace, cx| {
11909            assert!(
11910                !workspace.left_dock().read(cx).is_open(),
11911                "Left dock should be closed"
11912            );
11913            assert!(
11914                workspace.bottom_dock().read(cx).is_open(),
11915                "Bottom dock should now be open"
11916            );
11917            assert_eq!(
11918                left_panel.read(cx).position,
11919                DockPosition::Bottom,
11920                "Left panel should now be in the bottom dock"
11921            );
11922            assert_eq!(
11923                workspace
11924                    .bottom_dock()
11925                    .read(cx)
11926                    .visible_panel()
11927                    .unwrap()
11928                    .panel_id(),
11929                left_panel.panel_id(),
11930                "Left panel should be the visible panel in the bottom dock"
11931            );
11932        });
11933
11934        // Toggle all docks off
11935        workspace.update_in(cx, |workspace, window, cx| {
11936            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11937            assert!(
11938                !workspace.left_dock().read(cx).is_open(),
11939                "Left dock should be closed"
11940            );
11941            assert!(
11942                !workspace.right_dock().read(cx).is_open(),
11943                "Right dock should be closed"
11944            );
11945            assert!(
11946                !workspace.bottom_dock().read(cx).is_open(),
11947                "Bottom dock should be closed"
11948            );
11949        });
11950
11951        // Toggle all docks back on and verify positions are restored
11952        workspace.update_in(cx, |workspace, window, cx| {
11953            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11954            assert!(
11955                !workspace.left_dock().read(cx).is_open(),
11956                "Left dock should remain closed"
11957            );
11958            assert!(
11959                workspace.right_dock().read(cx).is_open(),
11960                "Right dock should remain open"
11961            );
11962            assert!(
11963                workspace.bottom_dock().read(cx).is_open(),
11964                "Bottom dock should remain open"
11965            );
11966            assert_eq!(
11967                left_panel.read(cx).position,
11968                DockPosition::Bottom,
11969                "Left panel should remain in the bottom dock"
11970            );
11971            assert_eq!(
11972                right_panel.read(cx).position,
11973                DockPosition::Right,
11974                "Right panel should remain in the right dock"
11975            );
11976            assert_eq!(
11977                workspace
11978                    .bottom_dock()
11979                    .read(cx)
11980                    .visible_panel()
11981                    .unwrap()
11982                    .panel_id(),
11983                left_panel.panel_id(),
11984                "Left panel should be the visible panel in the right dock"
11985            );
11986        });
11987    }
11988
11989    #[gpui::test]
11990    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
11991        init_test(cx);
11992
11993        let fs = FakeFs::new(cx.executor());
11994
11995        let project = Project::test(fs, None, cx).await;
11996        let (workspace, cx) =
11997            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11998
11999        // Let's arrange the panes like this:
12000        //
12001        // +-----------------------+
12002        // |         top           |
12003        // +------+--------+-------+
12004        // | left | center | right |
12005        // +------+--------+-------+
12006        // |        bottom         |
12007        // +-----------------------+
12008
12009        let top_item = cx.new(|cx| {
12010            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12011        });
12012        let bottom_item = cx.new(|cx| {
12013            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12014        });
12015        let left_item = cx.new(|cx| {
12016            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12017        });
12018        let right_item = cx.new(|cx| {
12019            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12020        });
12021        let center_item = cx.new(|cx| {
12022            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12023        });
12024
12025        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12026            let top_pane_id = workspace.active_pane().entity_id();
12027            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12028            workspace.split_pane(
12029                workspace.active_pane().clone(),
12030                SplitDirection::Down,
12031                window,
12032                cx,
12033            );
12034            top_pane_id
12035        });
12036        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12037            let bottom_pane_id = workspace.active_pane().entity_id();
12038            workspace.add_item_to_active_pane(
12039                Box::new(bottom_item.clone()),
12040                None,
12041                false,
12042                window,
12043                cx,
12044            );
12045            workspace.split_pane(
12046                workspace.active_pane().clone(),
12047                SplitDirection::Up,
12048                window,
12049                cx,
12050            );
12051            bottom_pane_id
12052        });
12053        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12054            let left_pane_id = workspace.active_pane().entity_id();
12055            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12056            workspace.split_pane(
12057                workspace.active_pane().clone(),
12058                SplitDirection::Right,
12059                window,
12060                cx,
12061            );
12062            left_pane_id
12063        });
12064        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12065            let right_pane_id = workspace.active_pane().entity_id();
12066            workspace.add_item_to_active_pane(
12067                Box::new(right_item.clone()),
12068                None,
12069                false,
12070                window,
12071                cx,
12072            );
12073            workspace.split_pane(
12074                workspace.active_pane().clone(),
12075                SplitDirection::Left,
12076                window,
12077                cx,
12078            );
12079            right_pane_id
12080        });
12081        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12082            let center_pane_id = workspace.active_pane().entity_id();
12083            workspace.add_item_to_active_pane(
12084                Box::new(center_item.clone()),
12085                None,
12086                false,
12087                window,
12088                cx,
12089            );
12090            center_pane_id
12091        });
12092        cx.executor().run_until_parked();
12093
12094        workspace.update_in(cx, |workspace, window, cx| {
12095            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12096
12097            // Join into next from center pane into right
12098            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12099        });
12100
12101        workspace.update_in(cx, |workspace, window, cx| {
12102            let active_pane = workspace.active_pane();
12103            assert_eq!(right_pane_id, active_pane.entity_id());
12104            assert_eq!(2, active_pane.read(cx).items_len());
12105            let item_ids_in_pane =
12106                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12107            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12108            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12109
12110            // Join into next from right pane into bottom
12111            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12112        });
12113
12114        workspace.update_in(cx, |workspace, window, cx| {
12115            let active_pane = workspace.active_pane();
12116            assert_eq!(bottom_pane_id, active_pane.entity_id());
12117            assert_eq!(3, active_pane.read(cx).items_len());
12118            let item_ids_in_pane =
12119                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12120            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12121            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12122            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12123
12124            // Join into next from bottom pane into left
12125            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12126        });
12127
12128        workspace.update_in(cx, |workspace, window, cx| {
12129            let active_pane = workspace.active_pane();
12130            assert_eq!(left_pane_id, active_pane.entity_id());
12131            assert_eq!(4, active_pane.read(cx).items_len());
12132            let item_ids_in_pane =
12133                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12134            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12135            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12136            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12137            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12138
12139            // Join into next from left pane into top
12140            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12141        });
12142
12143        workspace.update_in(cx, |workspace, window, cx| {
12144            let active_pane = workspace.active_pane();
12145            assert_eq!(top_pane_id, active_pane.entity_id());
12146            assert_eq!(5, active_pane.read(cx).items_len());
12147            let item_ids_in_pane =
12148                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12149            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12150            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12151            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12152            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12153            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12154
12155            // Single pane left: no-op
12156            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12157        });
12158
12159        workspace.update(cx, |workspace, _cx| {
12160            let active_pane = workspace.active_pane();
12161            assert_eq!(top_pane_id, active_pane.entity_id());
12162        });
12163    }
12164
12165    fn add_an_item_to_active_pane(
12166        cx: &mut VisualTestContext,
12167        workspace: &Entity<Workspace>,
12168        item_id: u64,
12169    ) -> Entity<TestItem> {
12170        let item = cx.new(|cx| {
12171            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12172                item_id,
12173                "item{item_id}.txt",
12174                cx,
12175            )])
12176        });
12177        workspace.update_in(cx, |workspace, window, cx| {
12178            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12179        });
12180        item
12181    }
12182
12183    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12184        workspace.update_in(cx, |workspace, window, cx| {
12185            workspace.split_pane(
12186                workspace.active_pane().clone(),
12187                SplitDirection::Right,
12188                window,
12189                cx,
12190            )
12191        })
12192    }
12193
12194    #[gpui::test]
12195    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12196        init_test(cx);
12197        let fs = FakeFs::new(cx.executor());
12198        let project = Project::test(fs, None, cx).await;
12199        let (workspace, cx) =
12200            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12201
12202        add_an_item_to_active_pane(cx, &workspace, 1);
12203        split_pane(cx, &workspace);
12204        add_an_item_to_active_pane(cx, &workspace, 2);
12205        split_pane(cx, &workspace); // empty pane
12206        split_pane(cx, &workspace);
12207        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12208
12209        cx.executor().run_until_parked();
12210
12211        workspace.update(cx, |workspace, cx| {
12212            let num_panes = workspace.panes().len();
12213            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12214            let active_item = workspace
12215                .active_pane()
12216                .read(cx)
12217                .active_item()
12218                .expect("item is in focus");
12219
12220            assert_eq!(num_panes, 4);
12221            assert_eq!(num_items_in_current_pane, 1);
12222            assert_eq!(active_item.item_id(), last_item.item_id());
12223        });
12224
12225        workspace.update_in(cx, |workspace, window, cx| {
12226            workspace.join_all_panes(window, cx);
12227        });
12228
12229        workspace.update(cx, |workspace, cx| {
12230            let num_panes = workspace.panes().len();
12231            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12232            let active_item = workspace
12233                .active_pane()
12234                .read(cx)
12235                .active_item()
12236                .expect("item is in focus");
12237
12238            assert_eq!(num_panes, 1);
12239            assert_eq!(num_items_in_current_pane, 3);
12240            assert_eq!(active_item.item_id(), last_item.item_id());
12241        });
12242    }
12243
12244    #[gpui::test]
12245    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12246        init_test(cx);
12247        let fs = FakeFs::new(cx.executor());
12248
12249        let project = Project::test(fs, [], cx).await;
12250        let (multi_workspace, cx) =
12251            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12252        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12253
12254        workspace.update(cx, |workspace, _cx| {
12255            workspace.bounds.size.width = px(800.);
12256        });
12257
12258        workspace.update_in(cx, |workspace, window, cx| {
12259            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12260            workspace.add_panel(panel, window, cx);
12261            workspace.toggle_dock(DockPosition::Right, window, cx);
12262        });
12263
12264        let (panel, resized_width, ratio_basis_width) =
12265            workspace.update_in(cx, |workspace, window, cx| {
12266                let item = cx.new(|cx| {
12267                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12268                });
12269                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12270
12271                let dock = workspace.right_dock().read(cx);
12272                let workspace_width = workspace.bounds.size.width;
12273                let initial_width = dock
12274                    .active_panel()
12275                    .map(|panel| {
12276                        workspace.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx)
12277                    })
12278                    .expect("flexible dock should have an initial width");
12279
12280                assert_eq!(initial_width, workspace_width / 2.);
12281
12282                workspace.resize_right_dock(px(300.), window, cx);
12283
12284                let dock = workspace.right_dock().read(cx);
12285                let resized_width = dock
12286                    .active_panel()
12287                    .map(|panel| {
12288                        workspace.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx)
12289                    })
12290                    .expect("flexible dock should keep its resized width");
12291
12292                assert_eq!(resized_width, px(300.));
12293
12294                let panel = workspace
12295                    .right_dock()
12296                    .read(cx)
12297                    .visible_panel()
12298                    .expect("flexible dock should have a visible panel")
12299                    .panel_id();
12300
12301                (panel, resized_width, workspace_width)
12302            });
12303
12304        workspace.update_in(cx, |workspace, window, cx| {
12305            workspace.toggle_dock(DockPosition::Right, window, cx);
12306            workspace.toggle_dock(DockPosition::Right, window, cx);
12307
12308            let dock = workspace.right_dock().read(cx);
12309            let reopened_width = dock
12310                .active_panel()
12311                .map(|panel| workspace.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx))
12312                .expect("flexible dock should restore when reopened");
12313
12314            assert_eq!(reopened_width, resized_width);
12315
12316            let right_dock = workspace.right_dock().read(cx);
12317            let flexible_panel = right_dock
12318                .visible_panel()
12319                .expect("flexible dock should still have a visible panel");
12320            assert_eq!(flexible_panel.panel_id(), panel);
12321            assert_eq!(
12322                right_dock
12323                    .stored_panel_size_state(flexible_panel.as_ref())
12324                    .and_then(|size_state| size_state.flexible_size_ratio),
12325                Some(resized_width.to_f64() as f32 / workspace.bounds.size.width.to_f64() as f32)
12326            );
12327        });
12328
12329        workspace.update_in(cx, |workspace, window, cx| {
12330            workspace.split_pane(
12331                workspace.active_pane().clone(),
12332                SplitDirection::Right,
12333                window,
12334                cx,
12335            );
12336
12337            let dock = workspace.right_dock().read(cx);
12338            let split_width = dock
12339                .active_panel()
12340                .map(|panel| workspace.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx))
12341                .expect("flexible dock should keep its user-resized proportion");
12342
12343            assert_eq!(split_width, px(300.));
12344
12345            workspace.bounds.size.width = px(1600.);
12346
12347            let dock = workspace.right_dock().read(cx);
12348            let resized_window_width = dock
12349                .active_panel()
12350                .map(|panel| workspace.resolved_dock_panel_size(&dock, panel.as_ref(), window, cx))
12351                .expect("flexible dock should preserve proportional size on window resize");
12352
12353            assert_eq!(
12354                resized_window_width,
12355                workspace.bounds.size.width
12356                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12357            );
12358        });
12359    }
12360
12361    #[gpui::test]
12362    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12363        init_test(cx);
12364        let fs = FakeFs::new(cx.executor());
12365
12366        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12367        {
12368            let project = Project::test(fs.clone(), [], cx).await;
12369            let (multi_workspace, cx) =
12370                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12371            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12372
12373            workspace.update(cx, |workspace, _cx| {
12374                workspace.set_random_database_id();
12375                workspace.bounds.size.width = px(800.);
12376            });
12377
12378            let panel = workspace.update_in(cx, |workspace, window, cx| {
12379                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12380                workspace.add_panel(panel.clone(), window, cx);
12381                workspace.toggle_dock(DockPosition::Left, window, cx);
12382                panel
12383            });
12384
12385            workspace.update_in(cx, |workspace, window, cx| {
12386                workspace.resize_left_dock(px(350.), window, cx);
12387            });
12388
12389            cx.run_until_parked();
12390
12391            let persisted = workspace.read_with(cx, |workspace, cx| {
12392                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12393            });
12394            assert_eq!(
12395                persisted.and_then(|s| s.size),
12396                Some(px(350.)),
12397                "fixed-width panel size should be persisted to KVP"
12398            );
12399
12400            // Remove the panel and re-add a fresh instance with the same key.
12401            // The new instance should have its size state restored from KVP.
12402            workspace.update_in(cx, |workspace, window, cx| {
12403                workspace.remove_panel(&panel, window, cx);
12404            });
12405
12406            workspace.update_in(cx, |workspace, window, cx| {
12407                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12408                workspace.add_panel(new_panel, window, cx);
12409
12410                let left_dock = workspace.left_dock().read(cx);
12411                let size_state = left_dock
12412                    .panel::<TestPanel>()
12413                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12414                assert_eq!(
12415                    size_state.and_then(|s| s.size),
12416                    Some(px(350.)),
12417                    "re-added fixed-width panel should restore persisted size from KVP"
12418                );
12419            });
12420        }
12421
12422        // Flexible panel: both pixel size and ratio are persisted and restored.
12423        {
12424            let project = Project::test(fs.clone(), [], cx).await;
12425            let (multi_workspace, cx) =
12426                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12427            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12428
12429            workspace.update(cx, |workspace, _cx| {
12430                workspace.set_random_database_id();
12431                workspace.bounds.size.width = px(800.);
12432            });
12433
12434            let panel = workspace.update_in(cx, |workspace, window, cx| {
12435                let item = cx.new(|cx| {
12436                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12437                });
12438                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12439
12440                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12441                workspace.add_panel(panel.clone(), window, cx);
12442                workspace.toggle_dock(DockPosition::Right, window, cx);
12443                panel
12444            });
12445
12446            workspace.update_in(cx, |workspace, window, cx| {
12447                workspace.resize_right_dock(px(300.), window, cx);
12448            });
12449
12450            cx.run_until_parked();
12451
12452            let persisted = workspace
12453                .read_with(cx, |workspace, cx| {
12454                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12455                })
12456                .expect("flexible panel state should be persisted to KVP");
12457            assert_eq!(
12458                persisted.size, None,
12459                "flexible panel should not persist a redundant pixel size"
12460            );
12461            let original_ratio = persisted
12462                .flexible_size_ratio
12463                .expect("flexible panel ratio should be persisted");
12464
12465            // Remove the panel and re-add: both size and ratio should be restored.
12466            workspace.update_in(cx, |workspace, window, cx| {
12467                workspace.remove_panel(&panel, window, cx);
12468            });
12469
12470            workspace.update_in(cx, |workspace, window, cx| {
12471                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12472                workspace.add_panel(new_panel, window, cx);
12473
12474                let right_dock = workspace.right_dock().read(cx);
12475                let size_state = right_dock
12476                    .panel::<TestPanel>()
12477                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12478                    .expect("re-added flexible panel should have restored size state from KVP");
12479                assert_eq!(
12480                    size_state.size, None,
12481                    "re-added flexible panel should not have a persisted pixel size"
12482                );
12483                assert_eq!(
12484                    size_state.flexible_size_ratio,
12485                    Some(original_ratio),
12486                    "re-added flexible panel should restore persisted ratio"
12487                );
12488            });
12489        }
12490    }
12491
12492    #[gpui::test]
12493    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12494        init_test(cx);
12495        let fs = FakeFs::new(cx.executor());
12496
12497        let project = Project::test(fs, [], cx).await;
12498        let (multi_workspace, cx) =
12499            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12500        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12501
12502        workspace.update(cx, |workspace, _cx| {
12503            workspace.bounds.size.width = px(900.);
12504        });
12505
12506        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12507        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12508        // and the center pane each take half the workspace width.
12509        workspace.update_in(cx, |workspace, window, cx| {
12510            let item = cx.new(|cx| {
12511                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12512            });
12513            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12514
12515            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12516            workspace.add_panel(panel, window, cx);
12517            workspace.toggle_dock(DockPosition::Left, window, cx);
12518
12519            let left_dock = workspace.left_dock().read(cx);
12520            let left_width = left_dock
12521                .active_panel()
12522                .map(|p| workspace.resolved_dock_panel_size(&left_dock, p.as_ref(), window, cx))
12523                .expect("left dock should have an active panel");
12524
12525            assert_eq!(
12526                left_width,
12527                workspace.bounds.size.width / 2.,
12528                "flexible left panel should split evenly with the center pane"
12529            );
12530        });
12531
12532        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12533        // change horizontal width fractions, so the flexible panel stays at the same
12534        // width as each half of the split.
12535        workspace.update_in(cx, |workspace, window, cx| {
12536            workspace.split_pane(
12537                workspace.active_pane().clone(),
12538                SplitDirection::Down,
12539                window,
12540                cx,
12541            );
12542
12543            let left_dock = workspace.left_dock().read(cx);
12544            let left_width = left_dock
12545                .active_panel()
12546                .map(|p| workspace.resolved_dock_panel_size(&left_dock, p.as_ref(), window, cx))
12547                .expect("left dock should still have an active panel after vertical split");
12548
12549            assert_eq!(
12550                left_width,
12551                workspace.bounds.size.width / 2.,
12552                "flexible left panel width should match each vertically-split pane"
12553            );
12554        });
12555
12556        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
12557        // size reduces the available width, so the flexible left panel and the center
12558        // panes all shrink proportionally to accommodate it.
12559        workspace.update_in(cx, |workspace, window, cx| {
12560            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
12561            workspace.add_panel(panel, window, cx);
12562            workspace.toggle_dock(DockPosition::Right, window, cx);
12563
12564            let right_dock = workspace.right_dock().read(cx);
12565            let right_width = right_dock
12566                .active_panel()
12567                .map(|p| workspace.resolved_dock_panel_size(&right_dock, p.as_ref(), window, cx))
12568                .expect("right dock should have an active panel");
12569
12570            let left_dock = workspace.left_dock().read(cx);
12571            let left_width = left_dock
12572                .active_panel()
12573                .map(|p| workspace.resolved_dock_panel_size(&left_dock, p.as_ref(), window, cx))
12574                .expect("left dock should still have an active panel");
12575
12576            let available_width = workspace.bounds.size.width - right_width;
12577            assert_eq!(
12578                left_width,
12579                available_width / 2.,
12580                "flexible left panel should shrink proportionally as the right dock takes space"
12581            );
12582        });
12583    }
12584
12585    struct TestModal(FocusHandle);
12586
12587    impl TestModal {
12588        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
12589            Self(cx.focus_handle())
12590        }
12591    }
12592
12593    impl EventEmitter<DismissEvent> for TestModal {}
12594
12595    impl Focusable for TestModal {
12596        fn focus_handle(&self, _cx: &App) -> FocusHandle {
12597            self.0.clone()
12598        }
12599    }
12600
12601    impl ModalView for TestModal {}
12602
12603    impl Render for TestModal {
12604        fn render(
12605            &mut self,
12606            _window: &mut Window,
12607            _cx: &mut Context<TestModal>,
12608        ) -> impl IntoElement {
12609            div().track_focus(&self.0)
12610        }
12611    }
12612
12613    #[gpui::test]
12614    async fn test_panels(cx: &mut gpui::TestAppContext) {
12615        init_test(cx);
12616        let fs = FakeFs::new(cx.executor());
12617
12618        let project = Project::test(fs, [], cx).await;
12619        let (multi_workspace, cx) =
12620            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12621        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12622
12623        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
12624            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12625            workspace.add_panel(panel_1.clone(), window, cx);
12626            workspace.toggle_dock(DockPosition::Left, window, cx);
12627            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12628            workspace.add_panel(panel_2.clone(), window, cx);
12629            workspace.toggle_dock(DockPosition::Right, window, cx);
12630
12631            let left_dock = workspace.left_dock();
12632            assert_eq!(
12633                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12634                panel_1.panel_id()
12635            );
12636            assert_eq!(
12637                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
12638                px(300.)
12639            );
12640
12641            workspace.resize_left_dock(px(1337.), window, cx);
12642            assert_eq!(
12643                workspace
12644                    .right_dock()
12645                    .read(cx)
12646                    .visible_panel()
12647                    .unwrap()
12648                    .panel_id(),
12649                panel_2.panel_id(),
12650            );
12651
12652            (panel_1, panel_2)
12653        });
12654
12655        // Move panel_1 to the right
12656        panel_1.update_in(cx, |panel_1, window, cx| {
12657            panel_1.set_position(DockPosition::Right, window, cx)
12658        });
12659
12660        workspace.update_in(cx, |workspace, window, cx| {
12661            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
12662            // Since it was the only panel on the left, the left dock should now be closed.
12663            assert!(!workspace.left_dock().read(cx).is_open());
12664            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
12665            let right_dock = workspace.right_dock();
12666            assert_eq!(
12667                right_dock.read(cx).visible_panel().unwrap().panel_id(),
12668                panel_1.panel_id()
12669            );
12670            assert_eq!(
12671                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
12672                px(1337.)
12673            );
12674
12675            // Now we move panel_2 to the left
12676            panel_2.set_position(DockPosition::Left, window, cx);
12677        });
12678
12679        workspace.update(cx, |workspace, cx| {
12680            // Since panel_2 was not visible on the right, we don't open the left dock.
12681            assert!(!workspace.left_dock().read(cx).is_open());
12682            // And the right dock is unaffected in its displaying of panel_1
12683            assert!(workspace.right_dock().read(cx).is_open());
12684            assert_eq!(
12685                workspace
12686                    .right_dock()
12687                    .read(cx)
12688                    .visible_panel()
12689                    .unwrap()
12690                    .panel_id(),
12691                panel_1.panel_id(),
12692            );
12693        });
12694
12695        // Move panel_1 back to the left
12696        panel_1.update_in(cx, |panel_1, window, cx| {
12697            panel_1.set_position(DockPosition::Left, window, cx)
12698        });
12699
12700        workspace.update_in(cx, |workspace, window, cx| {
12701            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
12702            let left_dock = workspace.left_dock();
12703            assert!(left_dock.read(cx).is_open());
12704            assert_eq!(
12705                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12706                panel_1.panel_id()
12707            );
12708            assert_eq!(
12709                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
12710                px(1337.)
12711            );
12712            // And the right dock should be closed as it no longer has any panels.
12713            assert!(!workspace.right_dock().read(cx).is_open());
12714
12715            // Now we move panel_1 to the bottom
12716            panel_1.set_position(DockPosition::Bottom, window, cx);
12717        });
12718
12719        workspace.update_in(cx, |workspace, window, cx| {
12720            // Since panel_1 was visible on the left, we close the left dock.
12721            assert!(!workspace.left_dock().read(cx).is_open());
12722            // The bottom dock is sized based on the panel's default size,
12723            // since the panel orientation changed from vertical to horizontal.
12724            let bottom_dock = workspace.bottom_dock();
12725            assert_eq!(
12726                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
12727                px(300.),
12728            );
12729            // Close bottom dock and move panel_1 back to the left.
12730            bottom_dock.update(cx, |bottom_dock, cx| {
12731                bottom_dock.set_open(false, window, cx)
12732            });
12733            panel_1.set_position(DockPosition::Left, window, cx);
12734        });
12735
12736        // Emit activated event on panel 1
12737        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
12738
12739        // Now the left dock is open and panel_1 is active and focused.
12740        workspace.update_in(cx, |workspace, window, cx| {
12741            let left_dock = workspace.left_dock();
12742            assert!(left_dock.read(cx).is_open());
12743            assert_eq!(
12744                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12745                panel_1.panel_id(),
12746            );
12747            assert!(panel_1.focus_handle(cx).is_focused(window));
12748        });
12749
12750        // Emit closed event on panel 2, which is not active
12751        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12752
12753        // Wo don't close the left dock, because panel_2 wasn't the active panel
12754        workspace.update(cx, |workspace, cx| {
12755            let left_dock = workspace.left_dock();
12756            assert!(left_dock.read(cx).is_open());
12757            assert_eq!(
12758                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12759                panel_1.panel_id(),
12760            );
12761        });
12762
12763        // Emitting a ZoomIn event shows the panel as zoomed.
12764        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
12765        workspace.read_with(cx, |workspace, _| {
12766            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12767            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
12768        });
12769
12770        // Move panel to another dock while it is zoomed
12771        panel_1.update_in(cx, |panel, window, cx| {
12772            panel.set_position(DockPosition::Right, window, cx)
12773        });
12774        workspace.read_with(cx, |workspace, _| {
12775            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12776
12777            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12778        });
12779
12780        // This is a helper for getting a:
12781        // - valid focus on an element,
12782        // - that isn't a part of the panes and panels system of the Workspace,
12783        // - and doesn't trigger the 'on_focus_lost' API.
12784        let focus_other_view = {
12785            let workspace = workspace.clone();
12786            move |cx: &mut VisualTestContext| {
12787                workspace.update_in(cx, |workspace, window, cx| {
12788                    if workspace.active_modal::<TestModal>(cx).is_some() {
12789                        workspace.toggle_modal(window, cx, TestModal::new);
12790                        workspace.toggle_modal(window, cx, TestModal::new);
12791                    } else {
12792                        workspace.toggle_modal(window, cx, TestModal::new);
12793                    }
12794                })
12795            }
12796        };
12797
12798        // If focus is transferred to another view that's not a panel or another pane, we still show
12799        // the panel as zoomed.
12800        focus_other_view(cx);
12801        workspace.read_with(cx, |workspace, _| {
12802            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12803            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12804        });
12805
12806        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
12807        workspace.update_in(cx, |_workspace, window, cx| {
12808            cx.focus_self(window);
12809        });
12810        workspace.read_with(cx, |workspace, _| {
12811            assert_eq!(workspace.zoomed, None);
12812            assert_eq!(workspace.zoomed_position, None);
12813        });
12814
12815        // If focus is transferred again to another view that's not a panel or a pane, we won't
12816        // show the panel as zoomed because it wasn't zoomed before.
12817        focus_other_view(cx);
12818        workspace.read_with(cx, |workspace, _| {
12819            assert_eq!(workspace.zoomed, None);
12820            assert_eq!(workspace.zoomed_position, None);
12821        });
12822
12823        // When the panel is activated, it is zoomed again.
12824        cx.dispatch_action(ToggleRightDock);
12825        workspace.read_with(cx, |workspace, _| {
12826            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
12827            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
12828        });
12829
12830        // Emitting a ZoomOut event unzooms the panel.
12831        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
12832        workspace.read_with(cx, |workspace, _| {
12833            assert_eq!(workspace.zoomed, None);
12834            assert_eq!(workspace.zoomed_position, None);
12835        });
12836
12837        // Emit closed event on panel 1, which is active
12838        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
12839
12840        // Now the left dock is closed, because panel_1 was the active panel
12841        workspace.update(cx, |workspace, cx| {
12842            let right_dock = workspace.right_dock();
12843            assert!(!right_dock.read(cx).is_open());
12844        });
12845    }
12846
12847    #[gpui::test]
12848    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
12849        init_test(cx);
12850
12851        let fs = FakeFs::new(cx.background_executor.clone());
12852        let project = Project::test(fs, [], cx).await;
12853        let (workspace, cx) =
12854            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12855        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12856
12857        let dirty_regular_buffer = cx.new(|cx| {
12858            TestItem::new(cx)
12859                .with_dirty(true)
12860                .with_label("1.txt")
12861                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12862        });
12863        let dirty_regular_buffer_2 = cx.new(|cx| {
12864            TestItem::new(cx)
12865                .with_dirty(true)
12866                .with_label("2.txt")
12867                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12868        });
12869        let dirty_multi_buffer_with_both = cx.new(|cx| {
12870            TestItem::new(cx)
12871                .with_dirty(true)
12872                .with_buffer_kind(ItemBufferKind::Multibuffer)
12873                .with_label("Fake Project Search")
12874                .with_project_items(&[
12875                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12876                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12877                ])
12878        });
12879        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
12880        workspace.update_in(cx, |workspace, window, cx| {
12881            workspace.add_item(
12882                pane.clone(),
12883                Box::new(dirty_regular_buffer.clone()),
12884                None,
12885                false,
12886                false,
12887                window,
12888                cx,
12889            );
12890            workspace.add_item(
12891                pane.clone(),
12892                Box::new(dirty_regular_buffer_2.clone()),
12893                None,
12894                false,
12895                false,
12896                window,
12897                cx,
12898            );
12899            workspace.add_item(
12900                pane.clone(),
12901                Box::new(dirty_multi_buffer_with_both.clone()),
12902                None,
12903                false,
12904                false,
12905                window,
12906                cx,
12907            );
12908        });
12909
12910        pane.update_in(cx, |pane, window, cx| {
12911            pane.activate_item(2, true, true, window, cx);
12912            assert_eq!(
12913                pane.active_item().unwrap().item_id(),
12914                multi_buffer_with_both_files_id,
12915                "Should select the multi buffer in the pane"
12916            );
12917        });
12918        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12919            pane.close_other_items(
12920                &CloseOtherItems {
12921                    save_intent: Some(SaveIntent::Save),
12922                    close_pinned: true,
12923                },
12924                None,
12925                window,
12926                cx,
12927            )
12928        });
12929        cx.background_executor.run_until_parked();
12930        assert!(!cx.has_pending_prompt());
12931        close_all_but_multi_buffer_task
12932            .await
12933            .expect("Closing all buffers but the multi buffer failed");
12934        pane.update(cx, |pane, cx| {
12935            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
12936            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
12937            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
12938            assert_eq!(pane.items_len(), 1);
12939            assert_eq!(
12940                pane.active_item().unwrap().item_id(),
12941                multi_buffer_with_both_files_id,
12942                "Should have only the multi buffer left in the pane"
12943            );
12944            assert!(
12945                dirty_multi_buffer_with_both.read(cx).is_dirty,
12946                "The multi buffer containing the unsaved buffer should still be dirty"
12947            );
12948        });
12949
12950        dirty_regular_buffer.update(cx, |buffer, cx| {
12951            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
12952        });
12953
12954        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12955            pane.close_active_item(
12956                &CloseActiveItem {
12957                    save_intent: Some(SaveIntent::Close),
12958                    close_pinned: false,
12959                },
12960                window,
12961                cx,
12962            )
12963        });
12964        cx.background_executor.run_until_parked();
12965        assert!(
12966            cx.has_pending_prompt(),
12967            "Dirty multi buffer should prompt a save dialog"
12968        );
12969        cx.simulate_prompt_answer("Save");
12970        cx.background_executor.run_until_parked();
12971        close_multi_buffer_task
12972            .await
12973            .expect("Closing the multi buffer failed");
12974        pane.update(cx, |pane, cx| {
12975            assert_eq!(
12976                dirty_multi_buffer_with_both.read(cx).save_count,
12977                1,
12978                "Multi buffer item should get be saved"
12979            );
12980            // Test impl does not save inner items, so we do not assert them
12981            assert_eq!(
12982                pane.items_len(),
12983                0,
12984                "No more items should be left in the pane"
12985            );
12986            assert!(pane.active_item().is_none());
12987        });
12988    }
12989
12990    #[gpui::test]
12991    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
12992        cx: &mut TestAppContext,
12993    ) {
12994        init_test(cx);
12995
12996        let fs = FakeFs::new(cx.background_executor.clone());
12997        let project = Project::test(fs, [], cx).await;
12998        let (workspace, cx) =
12999            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13000        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13001
13002        let dirty_regular_buffer = cx.new(|cx| {
13003            TestItem::new(cx)
13004                .with_dirty(true)
13005                .with_label("1.txt")
13006                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13007        });
13008        let dirty_regular_buffer_2 = cx.new(|cx| {
13009            TestItem::new(cx)
13010                .with_dirty(true)
13011                .with_label("2.txt")
13012                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13013        });
13014        let clear_regular_buffer = cx.new(|cx| {
13015            TestItem::new(cx)
13016                .with_label("3.txt")
13017                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13018        });
13019
13020        let dirty_multi_buffer_with_both = cx.new(|cx| {
13021            TestItem::new(cx)
13022                .with_dirty(true)
13023                .with_buffer_kind(ItemBufferKind::Multibuffer)
13024                .with_label("Fake Project Search")
13025                .with_project_items(&[
13026                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13027                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13028                    clear_regular_buffer.read(cx).project_items[0].clone(),
13029                ])
13030        });
13031        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13032        workspace.update_in(cx, |workspace, window, cx| {
13033            workspace.add_item(
13034                pane.clone(),
13035                Box::new(dirty_regular_buffer.clone()),
13036                None,
13037                false,
13038                false,
13039                window,
13040                cx,
13041            );
13042            workspace.add_item(
13043                pane.clone(),
13044                Box::new(dirty_multi_buffer_with_both.clone()),
13045                None,
13046                false,
13047                false,
13048                window,
13049                cx,
13050            );
13051        });
13052
13053        pane.update_in(cx, |pane, window, cx| {
13054            pane.activate_item(1, true, true, window, cx);
13055            assert_eq!(
13056                pane.active_item().unwrap().item_id(),
13057                multi_buffer_with_both_files_id,
13058                "Should select the multi buffer in the pane"
13059            );
13060        });
13061        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13062            pane.close_active_item(
13063                &CloseActiveItem {
13064                    save_intent: None,
13065                    close_pinned: false,
13066                },
13067                window,
13068                cx,
13069            )
13070        });
13071        cx.background_executor.run_until_parked();
13072        assert!(
13073            cx.has_pending_prompt(),
13074            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13075        );
13076    }
13077
13078    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13079    /// closed when they are deleted from disk.
13080    #[gpui::test]
13081    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13082        init_test(cx);
13083
13084        // Enable the close_on_disk_deletion setting
13085        cx.update_global(|store: &mut SettingsStore, cx| {
13086            store.update_user_settings(cx, |settings| {
13087                settings.workspace.close_on_file_delete = Some(true);
13088            });
13089        });
13090
13091        let fs = FakeFs::new(cx.background_executor.clone());
13092        let project = Project::test(fs, [], cx).await;
13093        let (workspace, cx) =
13094            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13095        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13096
13097        // Create a test item that simulates a file
13098        let item = cx.new(|cx| {
13099            TestItem::new(cx)
13100                .with_label("test.txt")
13101                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13102        });
13103
13104        // Add item to workspace
13105        workspace.update_in(cx, |workspace, window, cx| {
13106            workspace.add_item(
13107                pane.clone(),
13108                Box::new(item.clone()),
13109                None,
13110                false,
13111                false,
13112                window,
13113                cx,
13114            );
13115        });
13116
13117        // Verify the item is in the pane
13118        pane.read_with(cx, |pane, _| {
13119            assert_eq!(pane.items().count(), 1);
13120        });
13121
13122        // Simulate file deletion by setting the item's deleted state
13123        item.update(cx, |item, _| {
13124            item.set_has_deleted_file(true);
13125        });
13126
13127        // Emit UpdateTab event to trigger the close behavior
13128        cx.run_until_parked();
13129        item.update(cx, |_, cx| {
13130            cx.emit(ItemEvent::UpdateTab);
13131        });
13132
13133        // Allow the close operation to complete
13134        cx.run_until_parked();
13135
13136        // Verify the item was automatically closed
13137        pane.read_with(cx, |pane, _| {
13138            assert_eq!(
13139                pane.items().count(),
13140                0,
13141                "Item should be automatically closed when file is deleted"
13142            );
13143        });
13144    }
13145
13146    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13147    /// open with a strikethrough when they are deleted from disk.
13148    #[gpui::test]
13149    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13150        init_test(cx);
13151
13152        // Ensure close_on_disk_deletion is disabled (default)
13153        cx.update_global(|store: &mut SettingsStore, cx| {
13154            store.update_user_settings(cx, |settings| {
13155                settings.workspace.close_on_file_delete = Some(false);
13156            });
13157        });
13158
13159        let fs = FakeFs::new(cx.background_executor.clone());
13160        let project = Project::test(fs, [], cx).await;
13161        let (workspace, cx) =
13162            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13163        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13164
13165        // Create a test item that simulates a file
13166        let item = cx.new(|cx| {
13167            TestItem::new(cx)
13168                .with_label("test.txt")
13169                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13170        });
13171
13172        // Add item to workspace
13173        workspace.update_in(cx, |workspace, window, cx| {
13174            workspace.add_item(
13175                pane.clone(),
13176                Box::new(item.clone()),
13177                None,
13178                false,
13179                false,
13180                window,
13181                cx,
13182            );
13183        });
13184
13185        // Verify the item is in the pane
13186        pane.read_with(cx, |pane, _| {
13187            assert_eq!(pane.items().count(), 1);
13188        });
13189
13190        // Simulate file deletion
13191        item.update(cx, |item, _| {
13192            item.set_has_deleted_file(true);
13193        });
13194
13195        // Emit UpdateTab event
13196        cx.run_until_parked();
13197        item.update(cx, |_, cx| {
13198            cx.emit(ItemEvent::UpdateTab);
13199        });
13200
13201        // Allow any potential close operation to complete
13202        cx.run_until_parked();
13203
13204        // Verify the item remains open (with strikethrough)
13205        pane.read_with(cx, |pane, _| {
13206            assert_eq!(
13207                pane.items().count(),
13208                1,
13209                "Item should remain open when close_on_disk_deletion is disabled"
13210            );
13211        });
13212
13213        // Verify the item shows as deleted
13214        item.read_with(cx, |item, _| {
13215            assert!(
13216                item.has_deleted_file,
13217                "Item should be marked as having deleted file"
13218            );
13219        });
13220    }
13221
13222    /// Tests that dirty files are not automatically closed when deleted from disk,
13223    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13224    /// unsaved changes without being prompted.
13225    #[gpui::test]
13226    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13227        init_test(cx);
13228
13229        // Enable the close_on_file_delete setting
13230        cx.update_global(|store: &mut SettingsStore, cx| {
13231            store.update_user_settings(cx, |settings| {
13232                settings.workspace.close_on_file_delete = Some(true);
13233            });
13234        });
13235
13236        let fs = FakeFs::new(cx.background_executor.clone());
13237        let project = Project::test(fs, [], cx).await;
13238        let (workspace, cx) =
13239            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13240        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13241
13242        // Create a dirty test item
13243        let item = cx.new(|cx| {
13244            TestItem::new(cx)
13245                .with_dirty(true)
13246                .with_label("test.txt")
13247                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13248        });
13249
13250        // Add item to workspace
13251        workspace.update_in(cx, |workspace, window, cx| {
13252            workspace.add_item(
13253                pane.clone(),
13254                Box::new(item.clone()),
13255                None,
13256                false,
13257                false,
13258                window,
13259                cx,
13260            );
13261        });
13262
13263        // Simulate file deletion
13264        item.update(cx, |item, _| {
13265            item.set_has_deleted_file(true);
13266        });
13267
13268        // Emit UpdateTab event to trigger the close behavior
13269        cx.run_until_parked();
13270        item.update(cx, |_, cx| {
13271            cx.emit(ItemEvent::UpdateTab);
13272        });
13273
13274        // Allow any potential close operation to complete
13275        cx.run_until_parked();
13276
13277        // Verify the item remains open (dirty files are not auto-closed)
13278        pane.read_with(cx, |pane, _| {
13279            assert_eq!(
13280                pane.items().count(),
13281                1,
13282                "Dirty items should not be automatically closed even when file is deleted"
13283            );
13284        });
13285
13286        // Verify the item is marked as deleted and still dirty
13287        item.read_with(cx, |item, _| {
13288            assert!(
13289                item.has_deleted_file,
13290                "Item should be marked as having deleted file"
13291            );
13292            assert!(item.is_dirty, "Item should still be dirty");
13293        });
13294    }
13295
13296    /// Tests that navigation history is cleaned up when files are auto-closed
13297    /// due to deletion from disk.
13298    #[gpui::test]
13299    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13300        init_test(cx);
13301
13302        // Enable the close_on_file_delete setting
13303        cx.update_global(|store: &mut SettingsStore, cx| {
13304            store.update_user_settings(cx, |settings| {
13305                settings.workspace.close_on_file_delete = Some(true);
13306            });
13307        });
13308
13309        let fs = FakeFs::new(cx.background_executor.clone());
13310        let project = Project::test(fs, [], cx).await;
13311        let (workspace, cx) =
13312            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13313        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13314
13315        // Create test items
13316        let item1 = cx.new(|cx| {
13317            TestItem::new(cx)
13318                .with_label("test1.txt")
13319                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13320        });
13321        let item1_id = item1.item_id();
13322
13323        let item2 = cx.new(|cx| {
13324            TestItem::new(cx)
13325                .with_label("test2.txt")
13326                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13327        });
13328
13329        // Add items to workspace
13330        workspace.update_in(cx, |workspace, window, cx| {
13331            workspace.add_item(
13332                pane.clone(),
13333                Box::new(item1.clone()),
13334                None,
13335                false,
13336                false,
13337                window,
13338                cx,
13339            );
13340            workspace.add_item(
13341                pane.clone(),
13342                Box::new(item2.clone()),
13343                None,
13344                false,
13345                false,
13346                window,
13347                cx,
13348            );
13349        });
13350
13351        // Activate item1 to ensure it gets navigation entries
13352        pane.update_in(cx, |pane, window, cx| {
13353            pane.activate_item(0, true, true, window, cx);
13354        });
13355
13356        // Switch to item2 and back to create navigation history
13357        pane.update_in(cx, |pane, window, cx| {
13358            pane.activate_item(1, true, true, window, cx);
13359        });
13360        cx.run_until_parked();
13361
13362        pane.update_in(cx, |pane, window, cx| {
13363            pane.activate_item(0, true, true, window, cx);
13364        });
13365        cx.run_until_parked();
13366
13367        // Simulate file deletion for item1
13368        item1.update(cx, |item, _| {
13369            item.set_has_deleted_file(true);
13370        });
13371
13372        // Emit UpdateTab event to trigger the close behavior
13373        item1.update(cx, |_, cx| {
13374            cx.emit(ItemEvent::UpdateTab);
13375        });
13376        cx.run_until_parked();
13377
13378        // Verify item1 was closed
13379        pane.read_with(cx, |pane, _| {
13380            assert_eq!(
13381                pane.items().count(),
13382                1,
13383                "Should have 1 item remaining after auto-close"
13384            );
13385        });
13386
13387        // Check navigation history after close
13388        let has_item = pane.read_with(cx, |pane, cx| {
13389            let mut has_item = false;
13390            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13391                if entry.item.id() == item1_id {
13392                    has_item = true;
13393                }
13394            });
13395            has_item
13396        });
13397
13398        assert!(
13399            !has_item,
13400            "Navigation history should not contain closed item entries"
13401        );
13402    }
13403
13404    #[gpui::test]
13405    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13406        cx: &mut TestAppContext,
13407    ) {
13408        init_test(cx);
13409
13410        let fs = FakeFs::new(cx.background_executor.clone());
13411        let project = Project::test(fs, [], cx).await;
13412        let (workspace, cx) =
13413            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13414        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13415
13416        let dirty_regular_buffer = cx.new(|cx| {
13417            TestItem::new(cx)
13418                .with_dirty(true)
13419                .with_label("1.txt")
13420                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13421        });
13422        let dirty_regular_buffer_2 = cx.new(|cx| {
13423            TestItem::new(cx)
13424                .with_dirty(true)
13425                .with_label("2.txt")
13426                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13427        });
13428        let clear_regular_buffer = cx.new(|cx| {
13429            TestItem::new(cx)
13430                .with_label("3.txt")
13431                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13432        });
13433
13434        let dirty_multi_buffer = cx.new(|cx| {
13435            TestItem::new(cx)
13436                .with_dirty(true)
13437                .with_buffer_kind(ItemBufferKind::Multibuffer)
13438                .with_label("Fake Project Search")
13439                .with_project_items(&[
13440                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13441                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13442                    clear_regular_buffer.read(cx).project_items[0].clone(),
13443                ])
13444        });
13445        workspace.update_in(cx, |workspace, window, cx| {
13446            workspace.add_item(
13447                pane.clone(),
13448                Box::new(dirty_regular_buffer.clone()),
13449                None,
13450                false,
13451                false,
13452                window,
13453                cx,
13454            );
13455            workspace.add_item(
13456                pane.clone(),
13457                Box::new(dirty_regular_buffer_2.clone()),
13458                None,
13459                false,
13460                false,
13461                window,
13462                cx,
13463            );
13464            workspace.add_item(
13465                pane.clone(),
13466                Box::new(dirty_multi_buffer.clone()),
13467                None,
13468                false,
13469                false,
13470                window,
13471                cx,
13472            );
13473        });
13474
13475        pane.update_in(cx, |pane, window, cx| {
13476            pane.activate_item(2, true, true, window, cx);
13477            assert_eq!(
13478                pane.active_item().unwrap().item_id(),
13479                dirty_multi_buffer.item_id(),
13480                "Should select the multi buffer in the pane"
13481            );
13482        });
13483        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13484            pane.close_active_item(
13485                &CloseActiveItem {
13486                    save_intent: None,
13487                    close_pinned: false,
13488                },
13489                window,
13490                cx,
13491            )
13492        });
13493        cx.background_executor.run_until_parked();
13494        assert!(
13495            !cx.has_pending_prompt(),
13496            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
13497        );
13498        close_multi_buffer_task
13499            .await
13500            .expect("Closing multi buffer failed");
13501        pane.update(cx, |pane, cx| {
13502            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
13503            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
13504            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
13505            assert_eq!(
13506                pane.items()
13507                    .map(|item| item.item_id())
13508                    .sorted()
13509                    .collect::<Vec<_>>(),
13510                vec![
13511                    dirty_regular_buffer.item_id(),
13512                    dirty_regular_buffer_2.item_id(),
13513                ],
13514                "Should have no multi buffer left in the pane"
13515            );
13516            assert!(dirty_regular_buffer.read(cx).is_dirty);
13517            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
13518        });
13519    }
13520
13521    #[gpui::test]
13522    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
13523        init_test(cx);
13524        let fs = FakeFs::new(cx.executor());
13525        let project = Project::test(fs, [], cx).await;
13526        let (multi_workspace, cx) =
13527            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13528        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13529
13530        // Add a new panel to the right dock, opening the dock and setting the
13531        // focus to the new panel.
13532        let panel = workspace.update_in(cx, |workspace, window, cx| {
13533            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13534            workspace.add_panel(panel.clone(), window, cx);
13535
13536            workspace
13537                .right_dock()
13538                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13539
13540            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13541
13542            panel
13543        });
13544
13545        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13546        // panel to the next valid position which, in this case, is the left
13547        // dock.
13548        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13549        workspace.update(cx, |workspace, cx| {
13550            assert!(workspace.left_dock().read(cx).is_open());
13551            assert_eq!(panel.read(cx).position, DockPosition::Left);
13552        });
13553
13554        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13555        // panel to the next valid position which, in this case, is the bottom
13556        // dock.
13557        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13558        workspace.update(cx, |workspace, cx| {
13559            assert!(workspace.bottom_dock().read(cx).is_open());
13560            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
13561        });
13562
13563        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
13564        // around moving the panel to its initial position, the right dock.
13565        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13566        workspace.update(cx, |workspace, cx| {
13567            assert!(workspace.right_dock().read(cx).is_open());
13568            assert_eq!(panel.read(cx).position, DockPosition::Right);
13569        });
13570
13571        // Remove focus from the panel, ensuring that, if the panel is not
13572        // focused, the `MoveFocusedPanelToNextPosition` action does not update
13573        // the panel's position, so the panel is still in the right dock.
13574        workspace.update_in(cx, |workspace, window, cx| {
13575            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13576        });
13577
13578        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13579        workspace.update(cx, |workspace, cx| {
13580            assert!(workspace.right_dock().read(cx).is_open());
13581            assert_eq!(panel.read(cx).position, DockPosition::Right);
13582        });
13583    }
13584
13585    #[gpui::test]
13586    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
13587        init_test(cx);
13588
13589        let fs = FakeFs::new(cx.executor());
13590        let project = Project::test(fs, [], cx).await;
13591        let (workspace, cx) =
13592            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13593
13594        let item_1 = cx.new(|cx| {
13595            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13596        });
13597        workspace.update_in(cx, |workspace, window, cx| {
13598            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13599            workspace.move_item_to_pane_in_direction(
13600                &MoveItemToPaneInDirection {
13601                    direction: SplitDirection::Right,
13602                    focus: true,
13603                    clone: false,
13604                },
13605                window,
13606                cx,
13607            );
13608            workspace.move_item_to_pane_at_index(
13609                &MoveItemToPane {
13610                    destination: 3,
13611                    focus: true,
13612                    clone: false,
13613                },
13614                window,
13615                cx,
13616            );
13617
13618            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
13619            assert_eq!(
13620                pane_items_paths(&workspace.active_pane, cx),
13621                vec!["first.txt".to_string()],
13622                "Single item was not moved anywhere"
13623            );
13624        });
13625
13626        let item_2 = cx.new(|cx| {
13627            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
13628        });
13629        workspace.update_in(cx, |workspace, window, cx| {
13630            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
13631            assert_eq!(
13632                pane_items_paths(&workspace.panes[0], cx),
13633                vec!["first.txt".to_string(), "second.txt".to_string()],
13634            );
13635            workspace.move_item_to_pane_in_direction(
13636                &MoveItemToPaneInDirection {
13637                    direction: SplitDirection::Right,
13638                    focus: true,
13639                    clone: false,
13640                },
13641                window,
13642                cx,
13643            );
13644
13645            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
13646            assert_eq!(
13647                pane_items_paths(&workspace.panes[0], cx),
13648                vec!["first.txt".to_string()],
13649                "After moving, one item should be left in the original pane"
13650            );
13651            assert_eq!(
13652                pane_items_paths(&workspace.panes[1], cx),
13653                vec!["second.txt".to_string()],
13654                "New item should have been moved to the new pane"
13655            );
13656        });
13657
13658        let item_3 = cx.new(|cx| {
13659            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
13660        });
13661        workspace.update_in(cx, |workspace, window, cx| {
13662            let original_pane = workspace.panes[0].clone();
13663            workspace.set_active_pane(&original_pane, window, cx);
13664            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
13665            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
13666            assert_eq!(
13667                pane_items_paths(&workspace.active_pane, cx),
13668                vec!["first.txt".to_string(), "third.txt".to_string()],
13669                "New pane should be ready to move one item out"
13670            );
13671
13672            workspace.move_item_to_pane_at_index(
13673                &MoveItemToPane {
13674                    destination: 3,
13675                    focus: true,
13676                    clone: false,
13677                },
13678                window,
13679                cx,
13680            );
13681            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
13682            assert_eq!(
13683                pane_items_paths(&workspace.active_pane, cx),
13684                vec!["first.txt".to_string()],
13685                "After moving, one item should be left in the original pane"
13686            );
13687            assert_eq!(
13688                pane_items_paths(&workspace.panes[1], cx),
13689                vec!["second.txt".to_string()],
13690                "Previously created pane should be unchanged"
13691            );
13692            assert_eq!(
13693                pane_items_paths(&workspace.panes[2], cx),
13694                vec!["third.txt".to_string()],
13695                "New item should have been moved to the new pane"
13696            );
13697        });
13698    }
13699
13700    #[gpui::test]
13701    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
13702        init_test(cx);
13703
13704        let fs = FakeFs::new(cx.executor());
13705        let project = Project::test(fs, [], cx).await;
13706        let (workspace, cx) =
13707            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13708
13709        let item_1 = cx.new(|cx| {
13710            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13711        });
13712        workspace.update_in(cx, |workspace, window, cx| {
13713            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13714            workspace.move_item_to_pane_in_direction(
13715                &MoveItemToPaneInDirection {
13716                    direction: SplitDirection::Right,
13717                    focus: true,
13718                    clone: true,
13719                },
13720                window,
13721                cx,
13722            );
13723        });
13724        cx.run_until_parked();
13725        workspace.update_in(cx, |workspace, window, cx| {
13726            workspace.move_item_to_pane_at_index(
13727                &MoveItemToPane {
13728                    destination: 3,
13729                    focus: true,
13730                    clone: true,
13731                },
13732                window,
13733                cx,
13734            );
13735        });
13736        cx.run_until_parked();
13737
13738        workspace.update(cx, |workspace, cx| {
13739            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
13740            for pane in workspace.panes() {
13741                assert_eq!(
13742                    pane_items_paths(pane, cx),
13743                    vec!["first.txt".to_string()],
13744                    "Single item exists in all panes"
13745                );
13746            }
13747        });
13748
13749        // verify that the active pane has been updated after waiting for the
13750        // pane focus event to fire and resolve
13751        workspace.read_with(cx, |workspace, _app| {
13752            assert_eq!(
13753                workspace.active_pane(),
13754                &workspace.panes[2],
13755                "The third pane should be the active one: {:?}",
13756                workspace.panes
13757            );
13758        })
13759    }
13760
13761    #[gpui::test]
13762    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
13763        init_test(cx);
13764
13765        let fs = FakeFs::new(cx.executor());
13766        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
13767
13768        let project = Project::test(fs, ["root".as_ref()], cx).await;
13769        let (workspace, cx) =
13770            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13771
13772        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13773        // Add item to pane A with project path
13774        let item_a = cx.new(|cx| {
13775            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13776        });
13777        workspace.update_in(cx, |workspace, window, cx| {
13778            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
13779        });
13780
13781        // Split to create pane B
13782        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
13783            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
13784        });
13785
13786        // Add item with SAME project path to pane B, and pin it
13787        let item_b = cx.new(|cx| {
13788            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13789        });
13790        pane_b.update_in(cx, |pane, window, cx| {
13791            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
13792            pane.set_pinned_count(1);
13793        });
13794
13795        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
13796        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
13797
13798        // close_pinned: false should only close the unpinned copy
13799        workspace.update_in(cx, |workspace, window, cx| {
13800            workspace.close_item_in_all_panes(
13801                &CloseItemInAllPanes {
13802                    save_intent: Some(SaveIntent::Close),
13803                    close_pinned: false,
13804                },
13805                window,
13806                cx,
13807            )
13808        });
13809        cx.executor().run_until_parked();
13810
13811        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
13812        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13813        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
13814        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
13815
13816        // Split again, seeing as closing the previous item also closed its
13817        // pane, so only pane remains, which does not allow us to properly test
13818        // that both items close when `close_pinned: true`.
13819        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
13820            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
13821        });
13822
13823        // Add an item with the same project path to pane C so that
13824        // close_item_in_all_panes can determine what to close across all panes
13825        // (it reads the active item from the active pane, and split_pane
13826        // creates an empty pane).
13827        let item_c = cx.new(|cx| {
13828            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13829        });
13830        pane_c.update_in(cx, |pane, window, cx| {
13831            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
13832        });
13833
13834        // close_pinned: true should close the pinned copy too
13835        workspace.update_in(cx, |workspace, window, cx| {
13836            let panes_count = workspace.panes().len();
13837            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
13838
13839            workspace.close_item_in_all_panes(
13840                &CloseItemInAllPanes {
13841                    save_intent: Some(SaveIntent::Close),
13842                    close_pinned: true,
13843                },
13844                window,
13845                cx,
13846            )
13847        });
13848        cx.executor().run_until_parked();
13849
13850        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
13851        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
13852        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
13853        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
13854    }
13855
13856    mod register_project_item_tests {
13857
13858        use super::*;
13859
13860        // View
13861        struct TestPngItemView {
13862            focus_handle: FocusHandle,
13863        }
13864        // Model
13865        struct TestPngItem {}
13866
13867        impl project::ProjectItem for TestPngItem {
13868            fn try_open(
13869                _project: &Entity<Project>,
13870                path: &ProjectPath,
13871                cx: &mut App,
13872            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13873                if path.path.extension().unwrap() == "png" {
13874                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
13875                } else {
13876                    None
13877                }
13878            }
13879
13880            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13881                None
13882            }
13883
13884            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13885                None
13886            }
13887
13888            fn is_dirty(&self) -> bool {
13889                false
13890            }
13891        }
13892
13893        impl Item for TestPngItemView {
13894            type Event = ();
13895            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13896                "".into()
13897            }
13898        }
13899        impl EventEmitter<()> for TestPngItemView {}
13900        impl Focusable for TestPngItemView {
13901            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13902                self.focus_handle.clone()
13903            }
13904        }
13905
13906        impl Render for TestPngItemView {
13907            fn render(
13908                &mut self,
13909                _window: &mut Window,
13910                _cx: &mut Context<Self>,
13911            ) -> impl IntoElement {
13912                Empty
13913            }
13914        }
13915
13916        impl ProjectItem for TestPngItemView {
13917            type Item = TestPngItem;
13918
13919            fn for_project_item(
13920                _project: Entity<Project>,
13921                _pane: Option<&Pane>,
13922                _item: Entity<Self::Item>,
13923                _: &mut Window,
13924                cx: &mut Context<Self>,
13925            ) -> Self
13926            where
13927                Self: Sized,
13928            {
13929                Self {
13930                    focus_handle: cx.focus_handle(),
13931                }
13932            }
13933        }
13934
13935        // View
13936        struct TestIpynbItemView {
13937            focus_handle: FocusHandle,
13938        }
13939        // Model
13940        struct TestIpynbItem {}
13941
13942        impl project::ProjectItem for TestIpynbItem {
13943            fn try_open(
13944                _project: &Entity<Project>,
13945                path: &ProjectPath,
13946                cx: &mut App,
13947            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
13948                if path.path.extension().unwrap() == "ipynb" {
13949                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
13950                } else {
13951                    None
13952                }
13953            }
13954
13955            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
13956                None
13957            }
13958
13959            fn project_path(&self, _: &App) -> Option<ProjectPath> {
13960                None
13961            }
13962
13963            fn is_dirty(&self) -> bool {
13964                false
13965            }
13966        }
13967
13968        impl Item for TestIpynbItemView {
13969            type Event = ();
13970            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
13971                "".into()
13972            }
13973        }
13974        impl EventEmitter<()> for TestIpynbItemView {}
13975        impl Focusable for TestIpynbItemView {
13976            fn focus_handle(&self, _cx: &App) -> FocusHandle {
13977                self.focus_handle.clone()
13978            }
13979        }
13980
13981        impl Render for TestIpynbItemView {
13982            fn render(
13983                &mut self,
13984                _window: &mut Window,
13985                _cx: &mut Context<Self>,
13986            ) -> impl IntoElement {
13987                Empty
13988            }
13989        }
13990
13991        impl ProjectItem for TestIpynbItemView {
13992            type Item = TestIpynbItem;
13993
13994            fn for_project_item(
13995                _project: Entity<Project>,
13996                _pane: Option<&Pane>,
13997                _item: Entity<Self::Item>,
13998                _: &mut Window,
13999                cx: &mut Context<Self>,
14000            ) -> Self
14001            where
14002                Self: Sized,
14003            {
14004                Self {
14005                    focus_handle: cx.focus_handle(),
14006                }
14007            }
14008        }
14009
14010        struct TestAlternatePngItemView {
14011            focus_handle: FocusHandle,
14012        }
14013
14014        impl Item for TestAlternatePngItemView {
14015            type Event = ();
14016            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14017                "".into()
14018            }
14019        }
14020
14021        impl EventEmitter<()> for TestAlternatePngItemView {}
14022        impl Focusable for TestAlternatePngItemView {
14023            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14024                self.focus_handle.clone()
14025            }
14026        }
14027
14028        impl Render for TestAlternatePngItemView {
14029            fn render(
14030                &mut self,
14031                _window: &mut Window,
14032                _cx: &mut Context<Self>,
14033            ) -> impl IntoElement {
14034                Empty
14035            }
14036        }
14037
14038        impl ProjectItem for TestAlternatePngItemView {
14039            type Item = TestPngItem;
14040
14041            fn for_project_item(
14042                _project: Entity<Project>,
14043                _pane: Option<&Pane>,
14044                _item: Entity<Self::Item>,
14045                _: &mut Window,
14046                cx: &mut Context<Self>,
14047            ) -> Self
14048            where
14049                Self: Sized,
14050            {
14051                Self {
14052                    focus_handle: cx.focus_handle(),
14053                }
14054            }
14055        }
14056
14057        #[gpui::test]
14058        async fn test_register_project_item(cx: &mut TestAppContext) {
14059            init_test(cx);
14060
14061            cx.update(|cx| {
14062                register_project_item::<TestPngItemView>(cx);
14063                register_project_item::<TestIpynbItemView>(cx);
14064            });
14065
14066            let fs = FakeFs::new(cx.executor());
14067            fs.insert_tree(
14068                "/root1",
14069                json!({
14070                    "one.png": "BINARYDATAHERE",
14071                    "two.ipynb": "{ totally a notebook }",
14072                    "three.txt": "editing text, sure why not?"
14073                }),
14074            )
14075            .await;
14076
14077            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14078            let (workspace, cx) =
14079                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14080
14081            let worktree_id = project.update(cx, |project, cx| {
14082                project.worktrees(cx).next().unwrap().read(cx).id()
14083            });
14084
14085            let handle = workspace
14086                .update_in(cx, |workspace, window, cx| {
14087                    let project_path = (worktree_id, rel_path("one.png"));
14088                    workspace.open_path(project_path, None, true, window, cx)
14089                })
14090                .await
14091                .unwrap();
14092
14093            // Now we can check if the handle we got back errored or not
14094            assert_eq!(
14095                handle.to_any_view().entity_type(),
14096                TypeId::of::<TestPngItemView>()
14097            );
14098
14099            let handle = workspace
14100                .update_in(cx, |workspace, window, cx| {
14101                    let project_path = (worktree_id, rel_path("two.ipynb"));
14102                    workspace.open_path(project_path, None, true, window, cx)
14103                })
14104                .await
14105                .unwrap();
14106
14107            assert_eq!(
14108                handle.to_any_view().entity_type(),
14109                TypeId::of::<TestIpynbItemView>()
14110            );
14111
14112            let handle = workspace
14113                .update_in(cx, |workspace, window, cx| {
14114                    let project_path = (worktree_id, rel_path("three.txt"));
14115                    workspace.open_path(project_path, None, true, window, cx)
14116                })
14117                .await;
14118            assert!(handle.is_err());
14119        }
14120
14121        #[gpui::test]
14122        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14123            init_test(cx);
14124
14125            cx.update(|cx| {
14126                register_project_item::<TestPngItemView>(cx);
14127                register_project_item::<TestAlternatePngItemView>(cx);
14128            });
14129
14130            let fs = FakeFs::new(cx.executor());
14131            fs.insert_tree(
14132                "/root1",
14133                json!({
14134                    "one.png": "BINARYDATAHERE",
14135                    "two.ipynb": "{ totally a notebook }",
14136                    "three.txt": "editing text, sure why not?"
14137                }),
14138            )
14139            .await;
14140            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14141            let (workspace, cx) =
14142                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14143            let worktree_id = project.update(cx, |project, cx| {
14144                project.worktrees(cx).next().unwrap().read(cx).id()
14145            });
14146
14147            let handle = workspace
14148                .update_in(cx, |workspace, window, cx| {
14149                    let project_path = (worktree_id, rel_path("one.png"));
14150                    workspace.open_path(project_path, None, true, window, cx)
14151                })
14152                .await
14153                .unwrap();
14154
14155            // This _must_ be the second item registered
14156            assert_eq!(
14157                handle.to_any_view().entity_type(),
14158                TypeId::of::<TestAlternatePngItemView>()
14159            );
14160
14161            let handle = workspace
14162                .update_in(cx, |workspace, window, cx| {
14163                    let project_path = (worktree_id, rel_path("three.txt"));
14164                    workspace.open_path(project_path, None, true, window, cx)
14165                })
14166                .await;
14167            assert!(handle.is_err());
14168        }
14169    }
14170
14171    #[gpui::test]
14172    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14173        init_test(cx);
14174
14175        let fs = FakeFs::new(cx.executor());
14176        let project = Project::test(fs, [], cx).await;
14177        let (workspace, _cx) =
14178            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14179
14180        // Test with status bar shown (default)
14181        workspace.read_with(cx, |workspace, cx| {
14182            let visible = workspace.status_bar_visible(cx);
14183            assert!(visible, "Status bar should be visible by default");
14184        });
14185
14186        // Test with status bar hidden
14187        cx.update_global(|store: &mut SettingsStore, cx| {
14188            store.update_user_settings(cx, |settings| {
14189                settings.status_bar.get_or_insert_default().show = Some(false);
14190            });
14191        });
14192
14193        workspace.read_with(cx, |workspace, cx| {
14194            let visible = workspace.status_bar_visible(cx);
14195            assert!(!visible, "Status bar should be hidden when show is false");
14196        });
14197
14198        // Test with status bar shown explicitly
14199        cx.update_global(|store: &mut SettingsStore, cx| {
14200            store.update_user_settings(cx, |settings| {
14201                settings.status_bar.get_or_insert_default().show = Some(true);
14202            });
14203        });
14204
14205        workspace.read_with(cx, |workspace, cx| {
14206            let visible = workspace.status_bar_visible(cx);
14207            assert!(visible, "Status bar should be visible when show is true");
14208        });
14209    }
14210
14211    #[gpui::test]
14212    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14213        init_test(cx);
14214
14215        let fs = FakeFs::new(cx.executor());
14216        let project = Project::test(fs, [], cx).await;
14217        let (multi_workspace, cx) =
14218            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14219        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14220        let panel = workspace.update_in(cx, |workspace, window, cx| {
14221            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14222            workspace.add_panel(panel.clone(), window, cx);
14223
14224            workspace
14225                .right_dock()
14226                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14227
14228            panel
14229        });
14230
14231        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14232        let item_a = cx.new(TestItem::new);
14233        let item_b = cx.new(TestItem::new);
14234        let item_a_id = item_a.entity_id();
14235        let item_b_id = item_b.entity_id();
14236
14237        pane.update_in(cx, |pane, window, cx| {
14238            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14239            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14240        });
14241
14242        pane.read_with(cx, |pane, _| {
14243            assert_eq!(pane.items_len(), 2);
14244            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14245        });
14246
14247        workspace.update_in(cx, |workspace, window, cx| {
14248            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14249        });
14250
14251        workspace.update_in(cx, |_, window, cx| {
14252            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14253        });
14254
14255        // Assert that the `pane::CloseActiveItem` action is handled at the
14256        // workspace level when one of the dock panels is focused and, in that
14257        // case, the center pane's active item is closed but the focus is not
14258        // moved.
14259        cx.dispatch_action(pane::CloseActiveItem::default());
14260        cx.run_until_parked();
14261
14262        pane.read_with(cx, |pane, _| {
14263            assert_eq!(pane.items_len(), 1);
14264            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14265        });
14266
14267        workspace.update_in(cx, |workspace, window, cx| {
14268            assert!(workspace.right_dock().read(cx).is_open());
14269            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14270        });
14271    }
14272
14273    #[gpui::test]
14274    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14275        init_test(cx);
14276        let fs = FakeFs::new(cx.executor());
14277
14278        let project_a = Project::test(fs.clone(), [], cx).await;
14279        let project_b = Project::test(fs, [], cx).await;
14280
14281        let multi_workspace_handle =
14282            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14283        cx.run_until_parked();
14284
14285        let workspace_a = multi_workspace_handle
14286            .read_with(cx, |mw, _| mw.workspace().clone())
14287            .unwrap();
14288
14289        let _workspace_b = multi_workspace_handle
14290            .update(cx, |mw, window, cx| {
14291                mw.test_add_workspace(project_b, window, cx)
14292            })
14293            .unwrap();
14294
14295        // Switch to workspace A
14296        multi_workspace_handle
14297            .update(cx, |mw, window, cx| {
14298                mw.activate_index(0, window, cx);
14299            })
14300            .unwrap();
14301
14302        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14303
14304        // Add a panel to workspace A's right dock and open the dock
14305        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14306            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14307            workspace.add_panel(panel.clone(), window, cx);
14308            workspace
14309                .right_dock()
14310                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14311            panel
14312        });
14313
14314        // Focus the panel through the workspace (matching existing test pattern)
14315        workspace_a.update_in(cx, |workspace, window, cx| {
14316            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14317        });
14318
14319        // Zoom the panel
14320        panel.update_in(cx, |panel, window, cx| {
14321            panel.set_zoomed(true, window, cx);
14322        });
14323
14324        // Verify the panel is zoomed and the dock is open
14325        workspace_a.update_in(cx, |workspace, window, cx| {
14326            assert!(
14327                workspace.right_dock().read(cx).is_open(),
14328                "dock should be open before switch"
14329            );
14330            assert!(
14331                panel.is_zoomed(window, cx),
14332                "panel should be zoomed before switch"
14333            );
14334            assert!(
14335                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14336                "panel should be focused before switch"
14337            );
14338        });
14339
14340        // Switch to workspace B
14341        multi_workspace_handle
14342            .update(cx, |mw, window, cx| {
14343                mw.activate_index(1, window, cx);
14344            })
14345            .unwrap();
14346        cx.run_until_parked();
14347
14348        // Switch back to workspace A
14349        multi_workspace_handle
14350            .update(cx, |mw, window, cx| {
14351                mw.activate_index(0, window, cx);
14352            })
14353            .unwrap();
14354        cx.run_until_parked();
14355
14356        // Verify the panel is still zoomed and the dock is still open
14357        workspace_a.update_in(cx, |workspace, window, cx| {
14358            assert!(
14359                workspace.right_dock().read(cx).is_open(),
14360                "dock should still be open after switching back"
14361            );
14362            assert!(
14363                panel.is_zoomed(window, cx),
14364                "panel should still be zoomed after switching back"
14365            );
14366        });
14367    }
14368
14369    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14370        pane.read(cx)
14371            .items()
14372            .flat_map(|item| {
14373                item.project_paths(cx)
14374                    .into_iter()
14375                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14376            })
14377            .collect()
14378    }
14379
14380    pub fn init_test(cx: &mut TestAppContext) {
14381        cx.update(|cx| {
14382            let settings_store = SettingsStore::test(cx);
14383            cx.set_global(settings_store);
14384            cx.set_global(db::AppDatabase::test_new());
14385            theme::init(theme::LoadThemes::JustBase, cx);
14386        });
14387    }
14388
14389    #[gpui::test]
14390    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14391        use settings::{ThemeName, ThemeSelection};
14392        use theme::SystemAppearance;
14393        use zed_actions::theme::ToggleMode;
14394
14395        init_test(cx);
14396
14397        let fs = FakeFs::new(cx.executor());
14398        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14399
14400        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14401            .await;
14402
14403        // Build a test project and workspace view so the test can invoke
14404        // the workspace action handler the same way the UI would.
14405        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14406        let (workspace, cx) =
14407            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14408
14409        // Seed the settings file with a plain static light theme so the
14410        // first toggle always starts from a known persisted state.
14411        workspace.update_in(cx, |_workspace, _window, cx| {
14412            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14413            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14414                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14415            });
14416        });
14417        cx.executor().advance_clock(Duration::from_millis(200));
14418        cx.run_until_parked();
14419
14420        // Confirm the initial persisted settings contain the static theme
14421        // we just wrote before any toggling happens.
14422        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14423        assert!(settings_text.contains(r#""theme": "One Light""#));
14424
14425        // Toggle once. This should migrate the persisted theme settings
14426        // into light/dark slots and enable system mode.
14427        workspace.update_in(cx, |workspace, window, cx| {
14428            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14429        });
14430        cx.executor().advance_clock(Duration::from_millis(200));
14431        cx.run_until_parked();
14432
14433        // 1. Static -> Dynamic
14434        // this assertion checks theme changed from static to dynamic.
14435        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14436        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14437        assert_eq!(
14438            parsed["theme"],
14439            serde_json::json!({
14440                "mode": "system",
14441                "light": "One Light",
14442                "dark": "One Dark"
14443            })
14444        );
14445
14446        // 2. Toggle again, suppose it will change the mode to light
14447        workspace.update_in(cx, |workspace, window, cx| {
14448            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14449        });
14450        cx.executor().advance_clock(Duration::from_millis(200));
14451        cx.run_until_parked();
14452
14453        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14454        assert!(settings_text.contains(r#""mode": "light""#));
14455    }
14456
14457    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14458        let item = TestProjectItem::new(id, path, cx);
14459        item.update(cx, |item, _| {
14460            item.is_dirty = true;
14461        });
14462        item
14463    }
14464
14465    #[gpui::test]
14466    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14467        cx: &mut gpui::TestAppContext,
14468    ) {
14469        init_test(cx);
14470        let fs = FakeFs::new(cx.executor());
14471
14472        let project = Project::test(fs, [], cx).await;
14473        let (workspace, cx) =
14474            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14475
14476        let panel = workspace.update_in(cx, |workspace, window, cx| {
14477            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14478            workspace.add_panel(panel.clone(), window, cx);
14479            workspace
14480                .right_dock()
14481                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14482            panel
14483        });
14484
14485        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14486        pane.update_in(cx, |pane, window, cx| {
14487            let item = cx.new(TestItem::new);
14488            pane.add_item(Box::new(item), true, true, None, window, cx);
14489        });
14490
14491        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
14492        // mirrors the real-world flow and avoids side effects from directly
14493        // focusing the panel while the center pane is active.
14494        workspace.update_in(cx, |workspace, window, cx| {
14495            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14496        });
14497
14498        panel.update_in(cx, |panel, window, cx| {
14499            panel.set_zoomed(true, window, cx);
14500        });
14501
14502        workspace.update_in(cx, |workspace, window, cx| {
14503            assert!(workspace.right_dock().read(cx).is_open());
14504            assert!(panel.is_zoomed(window, cx));
14505            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14506        });
14507
14508        // Simulate a spurious pane::Event::Focus on the center pane while the
14509        // panel still has focus. This mirrors what happens during macOS window
14510        // activation: the center pane fires a focus event even though actual
14511        // focus remains on the dock panel.
14512        pane.update_in(cx, |_, _, cx| {
14513            cx.emit(pane::Event::Focus);
14514        });
14515
14516        // The dock must remain open because the panel had focus at the time the
14517        // event was processed. Before the fix, dock_to_preserve was None for
14518        // panels that don't implement pane(), causing the dock to close.
14519        workspace.update_in(cx, |workspace, window, cx| {
14520            assert!(
14521                workspace.right_dock().read(cx).is_open(),
14522                "Dock should stay open when its zoomed panel (without pane()) still has focus"
14523            );
14524            assert!(panel.is_zoomed(window, cx));
14525        });
14526    }
14527
14528    #[gpui::test]
14529    async fn test_panels_stay_open_after_position_change_and_settings_update(
14530        cx: &mut gpui::TestAppContext,
14531    ) {
14532        init_test(cx);
14533        let fs = FakeFs::new(cx.executor());
14534        let project = Project::test(fs, [], cx).await;
14535        let (workspace, cx) =
14536            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14537
14538        // Add two panels to the left dock and open it.
14539        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
14540            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
14541            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
14542            workspace.add_panel(panel_a.clone(), window, cx);
14543            workspace.add_panel(panel_b.clone(), window, cx);
14544            workspace.left_dock().update(cx, |dock, cx| {
14545                dock.set_open(true, window, cx);
14546                dock.activate_panel(0, window, cx);
14547            });
14548            (panel_a, panel_b)
14549        });
14550
14551        workspace.update_in(cx, |workspace, _, cx| {
14552            assert!(workspace.left_dock().read(cx).is_open());
14553        });
14554
14555        // Simulate a feature flag changing default dock positions: both panels
14556        // move from Left to Right.
14557        workspace.update_in(cx, |_workspace, _window, cx| {
14558            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
14559            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
14560            cx.update_global::<SettingsStore, _>(|_, _| {});
14561        });
14562
14563        // Both panels should now be in the right dock.
14564        workspace.update_in(cx, |workspace, _, cx| {
14565            let right_dock = workspace.right_dock().read(cx);
14566            assert_eq!(right_dock.panels_len(), 2);
14567        });
14568
14569        // Open the right dock and activate panel_b (simulating the user
14570        // opening the panel after it moved).
14571        workspace.update_in(cx, |workspace, window, cx| {
14572            workspace.right_dock().update(cx, |dock, cx| {
14573                dock.set_open(true, window, cx);
14574                dock.activate_panel(1, window, cx);
14575            });
14576        });
14577
14578        // Now trigger another SettingsStore change
14579        workspace.update_in(cx, |_workspace, _window, cx| {
14580            cx.update_global::<SettingsStore, _>(|_, _| {});
14581        });
14582
14583        workspace.update_in(cx, |workspace, _, cx| {
14584            assert!(
14585                workspace.right_dock().read(cx).is_open(),
14586                "Right dock should still be open after a settings change"
14587            );
14588            assert_eq!(
14589                workspace.right_dock().read(cx).panels_len(),
14590                2,
14591                "Both panels should still be in the right dock"
14592            );
14593        });
14594    }
14595}