workspace.rs

    1pub mod active_file_name;
    2pub mod dock;
    3pub mod history_manager;
    4pub mod invalid_item_view;
    5pub mod item;
    6mod modal_layer;
    7mod multi_workspace;
    8#[cfg(test)]
    9mod multi_workspace_tests;
   10pub mod notifications;
   11pub mod pane;
   12pub mod pane_group;
   13pub mod path_list {
   14    pub use util::path_list::{PathList, SerializedPathList};
   15}
   16mod persistence;
   17pub mod searchable;
   18mod security_modal;
   19pub mod shared_screen;
   20use db::smol::future::yield_now;
   21pub use shared_screen::SharedScreen;
   22pub mod focus_follows_mouse;
   23mod status_bar;
   24pub mod tasks;
   25mod theme_preview;
   26mod toast_layer;
   27mod toolbar;
   28pub mod welcome;
   29mod workspace_settings;
   30
   31pub use crate::notifications::NotificationFrame;
   32pub use dock::Panel;
   33pub use multi_workspace::{
   34    CloseWorkspaceSidebar, DraggedSidebar, FocusWorkspaceSidebar, MoveWorkspaceToNewWindow,
   35    MultiWorkspace, MultiWorkspaceEvent, NewThread, NextProjectGroup, NextThread,
   36    PreviousProjectGroup, PreviousThread, ShowFewerThreads, ShowMoreThreads, Sidebar, SidebarEvent,
   37    SidebarHandle, SidebarRenderState, SidebarSide, ToggleWorkspaceSidebar,
   38    sidebar_side_context_menu,
   39};
   40pub use path_list::{PathList, SerializedPathList};
   41pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   42
   43use anyhow::{Context as _, Result, anyhow};
   44use client::{
   45    ChannelId, Client, ErrorExt, ParticipantIndex, Status, TypedEnvelope, User, UserStore,
   46    proto::{self, ErrorCode, PanelId, PeerId},
   47};
   48use collections::{HashMap, HashSet, hash_map};
   49use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   50use fs::Fs;
   51use futures::{
   52    Future, FutureExt, StreamExt,
   53    channel::{
   54        mpsc::{self, UnboundedReceiver, UnboundedSender},
   55        oneshot,
   56    },
   57    future::{Shared, try_join_all},
   58};
   59use gpui::{
   60    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Axis, Bounds,
   61    Context, CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   62    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   63    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   64    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   65    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   66};
   67pub use history_manager::*;
   68pub use item::{
   69    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   70    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   71};
   72use itertools::Itertools;
   73use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   74pub use modal_layer::*;
   75use node_runtime::NodeRuntime;
   76use notifications::{
   77    DetachAndPromptErr, Notifications, dismiss_app_notification,
   78    simple_message_notification::MessageNotification,
   79};
   80pub use pane::*;
   81pub use pane_group::{
   82    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   83    SplitDirection,
   84};
   85use persistence::{SerializedWindowBounds, model::SerializedWorkspace};
   86pub use persistence::{
   87    WorkspaceDb, delete_unloaded_items,
   88    model::{
   89        DockStructure, ItemId, MultiWorkspaceState, SerializedMultiWorkspace,
   90        SerializedWorkspaceLocation, SessionWorkspace,
   91    },
   92    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   93};
   94use postage::stream::Stream;
   95use project::{
   96    DirectoryLister, Project, ProjectEntryId, ProjectGroupKey, ProjectPath, ResolvedPath, Worktree,
   97    WorktreeId, WorktreeSettings,
   98    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   99    project_settings::ProjectSettings,
  100    toolchain_store::ToolchainStoreEvent,
  101    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
  102};
  103use remote::{
  104    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
  105    remote_client::ConnectionIdentifier,
  106};
  107use schemars::JsonSchema;
  108use serde::Deserialize;
  109use session::AppSession;
  110use settings::{
  111    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
  112};
  113
  114use sqlez::{
  115    bindable::{Bind, Column, StaticColumnCount},
  116    statement::Statement,
  117};
  118use status_bar::StatusBar;
  119pub use status_bar::StatusItemView;
  120use std::{
  121    any::TypeId,
  122    borrow::Cow,
  123    cell::RefCell,
  124    cmp,
  125    collections::VecDeque,
  126    env,
  127    hash::Hash,
  128    path::{Path, PathBuf},
  129    process::ExitStatus,
  130    rc::Rc,
  131    sync::{
  132        Arc, LazyLock,
  133        atomic::{AtomicBool, AtomicUsize},
  134    },
  135    time::Duration,
  136};
  137use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  138use theme::{ActiveTheme, SystemAppearance};
  139use theme_settings::ThemeSettings;
  140pub use toolbar::{
  141    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  142};
  143pub use ui;
  144use ui::{Window, prelude::*};
  145use util::{
  146    ResultExt, TryFutureExt,
  147    paths::{PathStyle, SanitizedPath},
  148    rel_path::RelPath,
  149    serde::default_true,
  150};
  151use uuid::Uuid;
  152pub use workspace_settings::{
  153    AutosaveSetting, BottomDockLayout, FocusFollowsMouse, RestoreOnStartupBehavior,
  154    StatusBarSettings, TabBarSettings, WorkspaceSettings,
  155};
  156use zed_actions::{Spawn, feedback::FileBugReport, theme::ToggleMode};
  157
  158use crate::{dock::PanelSizeState, item::ItemBufferKind, notifications::NotificationId};
  159use crate::{
  160    persistence::{
  161        SerializedAxis,
  162        model::{DockData, SerializedItem, SerializedPane, SerializedPaneGroup},
  163    },
  164    security_modal::SecurityModal,
  165};
  166
  167pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  168
  169static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  170    env::var("ZED_WINDOW_SIZE")
  171        .ok()
  172        .as_deref()
  173        .and_then(parse_pixel_size_env_var)
  174});
  175
  176static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  177    env::var("ZED_WINDOW_POSITION")
  178        .ok()
  179        .as_deref()
  180        .and_then(parse_pixel_position_env_var)
  181});
  182
  183pub trait TerminalProvider {
  184    fn spawn(
  185        &self,
  186        task: SpawnInTerminal,
  187        window: &mut Window,
  188        cx: &mut App,
  189    ) -> Task<Option<Result<ExitStatus>>>;
  190}
  191
  192pub trait DebuggerProvider {
  193    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  194    fn start_session(
  195        &self,
  196        definition: DebugScenario,
  197        task_context: SharedTaskContext,
  198        active_buffer: Option<Entity<Buffer>>,
  199        worktree_id: Option<WorktreeId>,
  200        window: &mut Window,
  201        cx: &mut App,
  202    );
  203
  204    fn spawn_task_or_modal(
  205        &self,
  206        workspace: &mut Workspace,
  207        action: &Spawn,
  208        window: &mut Window,
  209        cx: &mut Context<Workspace>,
  210    );
  211
  212    fn task_scheduled(&self, cx: &mut App);
  213    fn debug_scenario_scheduled(&self, cx: &mut App);
  214    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  215
  216    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  217}
  218
  219/// Opens a file or directory.
  220#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  221#[action(namespace = workspace)]
  222pub struct Open {
  223    /// When true, opens in a new window. When false, adds to the current
  224    /// window as a new workspace (multi-workspace).
  225    #[serde(default = "Open::default_create_new_window")]
  226    pub create_new_window: bool,
  227}
  228
  229impl Open {
  230    pub const DEFAULT: Self = Self {
  231        create_new_window: true,
  232    };
  233
  234    /// Used by `#[serde(default)]` on the `create_new_window` field so that
  235    /// the serde default and `Open::DEFAULT` stay in sync.
  236    fn default_create_new_window() -> bool {
  237        Self::DEFAULT.create_new_window
  238    }
  239}
  240
  241impl Default for Open {
  242    fn default() -> Self {
  243        Self::DEFAULT
  244    }
  245}
  246
  247actions!(
  248    workspace,
  249    [
  250        /// Activates the next pane in the workspace.
  251        ActivateNextPane,
  252        /// Activates the previous pane in the workspace.
  253        ActivatePreviousPane,
  254        /// Activates the last pane in the workspace.
  255        ActivateLastPane,
  256        /// Switches to the next window.
  257        ActivateNextWindow,
  258        /// Switches to the previous window.
  259        ActivatePreviousWindow,
  260        /// Adds a folder to the current project.
  261        AddFolderToProject,
  262        /// Clears all notifications.
  263        ClearAllNotifications,
  264        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  265        ClearNavigationHistory,
  266        /// Closes the active dock.
  267        CloseActiveDock,
  268        /// Closes all docks.
  269        CloseAllDocks,
  270        /// Toggles all docks.
  271        ToggleAllDocks,
  272        /// Closes the current window.
  273        CloseWindow,
  274        /// Closes the current project.
  275        CloseProject,
  276        /// Opens the feedback dialog.
  277        Feedback,
  278        /// Follows the next collaborator in the session.
  279        FollowNextCollaborator,
  280        /// Moves the focused panel to the next position.
  281        MoveFocusedPanelToNextPosition,
  282        /// Creates a new file.
  283        NewFile,
  284        /// Creates a new file in a vertical split.
  285        NewFileSplitVertical,
  286        /// Creates a new file in a horizontal split.
  287        NewFileSplitHorizontal,
  288        /// Opens a new search.
  289        NewSearch,
  290        /// Opens a new window.
  291        NewWindow,
  292        /// Opens multiple files.
  293        OpenFiles,
  294        /// Opens the current location in terminal.
  295        OpenInTerminal,
  296        /// Opens the component preview.
  297        OpenComponentPreview,
  298        /// Reloads the active item.
  299        ReloadActiveItem,
  300        /// Resets the active dock to its default size.
  301        ResetActiveDockSize,
  302        /// Resets all open docks to their default sizes.
  303        ResetOpenDocksSize,
  304        /// Reloads the application
  305        Reload,
  306        /// Saves the current file with a new name.
  307        SaveAs,
  308        /// Saves without formatting.
  309        SaveWithoutFormat,
  310        /// Shuts down all debug adapters.
  311        ShutdownDebugAdapters,
  312        /// Suppresses the current notification.
  313        SuppressNotification,
  314        /// Toggles the bottom dock.
  315        ToggleBottomDock,
  316        /// Toggles centered layout mode.
  317        ToggleCenteredLayout,
  318        /// Toggles edit prediction feature globally for all files.
  319        ToggleEditPrediction,
  320        /// Toggles the left dock.
  321        ToggleLeftDock,
  322        /// Toggles the right dock.
  323        ToggleRightDock,
  324        /// Toggles zoom on the active pane.
  325        ToggleZoom,
  326        /// Toggles read-only mode for the active item (if supported by that item).
  327        ToggleReadOnlyFile,
  328        /// Zooms in on the active pane.
  329        ZoomIn,
  330        /// Zooms out of the active pane.
  331        ZoomOut,
  332        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  333        /// If the modal is shown already, closes it without trusting any worktree.
  334        ToggleWorktreeSecurity,
  335        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  336        /// Requires restart to take effect on already opened projects.
  337        ClearTrustedWorktrees,
  338        /// Stops following a collaborator.
  339        Unfollow,
  340        /// Restores the banner.
  341        RestoreBanner,
  342        /// Toggles expansion of the selected item.
  343        ToggleExpandItem,
  344    ]
  345);
  346
  347/// Activates a specific pane by its index.
  348#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  349#[action(namespace = workspace)]
  350pub struct ActivatePane(pub usize);
  351
  352/// Moves an item to a specific pane by index.
  353#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  354#[action(namespace = workspace)]
  355#[serde(deny_unknown_fields)]
  356pub struct MoveItemToPane {
  357    #[serde(default = "default_1")]
  358    pub destination: usize,
  359    #[serde(default = "default_true")]
  360    pub focus: bool,
  361    #[serde(default)]
  362    pub clone: bool,
  363}
  364
  365fn default_1() -> usize {
  366    1
  367}
  368
  369/// Moves an item to a pane in the specified direction.
  370#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  371#[action(namespace = workspace)]
  372#[serde(deny_unknown_fields)]
  373pub struct MoveItemToPaneInDirection {
  374    #[serde(default = "default_right")]
  375    pub direction: SplitDirection,
  376    #[serde(default = "default_true")]
  377    pub focus: bool,
  378    #[serde(default)]
  379    pub clone: bool,
  380}
  381
  382/// Creates a new file in a split of the desired direction.
  383#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  384#[action(namespace = workspace)]
  385#[serde(deny_unknown_fields)]
  386pub struct NewFileSplit(pub SplitDirection);
  387
  388fn default_right() -> SplitDirection {
  389    SplitDirection::Right
  390}
  391
  392/// Saves all open files in the workspace.
  393#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  394#[action(namespace = workspace)]
  395#[serde(deny_unknown_fields)]
  396pub struct SaveAll {
  397    #[serde(default)]
  398    pub save_intent: Option<SaveIntent>,
  399}
  400
  401/// Saves the current file with the specified options.
  402#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  403#[action(namespace = workspace)]
  404#[serde(deny_unknown_fields)]
  405pub struct Save {
  406    #[serde(default)]
  407    pub save_intent: Option<SaveIntent>,
  408}
  409
  410/// Moves Focus to the central panes in the workspace.
  411#[derive(Clone, Debug, PartialEq, Eq, Action)]
  412#[action(namespace = workspace)]
  413pub struct FocusCenterPane;
  414
  415///  Closes all items and panes in the workspace.
  416#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  417#[action(namespace = workspace)]
  418#[serde(deny_unknown_fields)]
  419pub struct CloseAllItemsAndPanes {
  420    #[serde(default)]
  421    pub save_intent: Option<SaveIntent>,
  422}
  423
  424/// Closes all inactive tabs and panes in the workspace.
  425#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  426#[action(namespace = workspace)]
  427#[serde(deny_unknown_fields)]
  428pub struct CloseInactiveTabsAndPanes {
  429    #[serde(default)]
  430    pub save_intent: Option<SaveIntent>,
  431}
  432
  433/// Closes the active item across all panes.
  434#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  435#[action(namespace = workspace)]
  436#[serde(deny_unknown_fields)]
  437pub struct CloseItemInAllPanes {
  438    #[serde(default)]
  439    pub save_intent: Option<SaveIntent>,
  440    #[serde(default)]
  441    pub close_pinned: bool,
  442}
  443
  444/// Sends a sequence of keystrokes to the active element.
  445#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  446#[action(namespace = workspace)]
  447pub struct SendKeystrokes(pub String);
  448
  449actions!(
  450    project_symbols,
  451    [
  452        /// Toggles the project symbols search.
  453        #[action(name = "Toggle")]
  454        ToggleProjectSymbols
  455    ]
  456);
  457
  458/// Toggles the file finder interface.
  459#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  460#[action(namespace = file_finder, name = "Toggle")]
  461#[serde(deny_unknown_fields)]
  462pub struct ToggleFileFinder {
  463    #[serde(default)]
  464    pub separate_history: bool,
  465}
  466
  467/// Opens a new terminal in the center.
  468#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  469#[action(namespace = workspace)]
  470#[serde(deny_unknown_fields)]
  471pub struct NewCenterTerminal {
  472    /// If true, creates a local terminal even in remote projects.
  473    #[serde(default)]
  474    pub local: bool,
  475}
  476
  477/// Opens a new terminal.
  478#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  479#[action(namespace = workspace)]
  480#[serde(deny_unknown_fields)]
  481pub struct NewTerminal {
  482    /// If true, creates a local terminal even in remote projects.
  483    #[serde(default)]
  484    pub local: bool,
  485}
  486
  487/// Increases size of a currently focused dock by a given amount of pixels.
  488#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  489#[action(namespace = workspace)]
  490#[serde(deny_unknown_fields)]
  491pub struct IncreaseActiveDockSize {
  492    /// For 0px parameter, uses UI font size value.
  493    #[serde(default)]
  494    pub px: u32,
  495}
  496
  497/// Decreases size of a currently focused dock by a given amount of pixels.
  498#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  499#[action(namespace = workspace)]
  500#[serde(deny_unknown_fields)]
  501pub struct DecreaseActiveDockSize {
  502    /// For 0px parameter, uses UI font size value.
  503    #[serde(default)]
  504    pub px: u32,
  505}
  506
  507/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  508#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  509#[action(namespace = workspace)]
  510#[serde(deny_unknown_fields)]
  511pub struct IncreaseOpenDocksSize {
  512    /// For 0px parameter, uses UI font size value.
  513    #[serde(default)]
  514    pub px: u32,
  515}
  516
  517/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  518#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  519#[action(namespace = workspace)]
  520#[serde(deny_unknown_fields)]
  521pub struct DecreaseOpenDocksSize {
  522    /// For 0px parameter, uses UI font size value.
  523    #[serde(default)]
  524    pub px: u32,
  525}
  526
  527actions!(
  528    workspace,
  529    [
  530        /// Activates the pane to the left.
  531        ActivatePaneLeft,
  532        /// Activates the pane to the right.
  533        ActivatePaneRight,
  534        /// Activates the pane above.
  535        ActivatePaneUp,
  536        /// Activates the pane below.
  537        ActivatePaneDown,
  538        /// Swaps the current pane with the one to the left.
  539        SwapPaneLeft,
  540        /// Swaps the current pane with the one to the right.
  541        SwapPaneRight,
  542        /// Swaps the current pane with the one above.
  543        SwapPaneUp,
  544        /// Swaps the current pane with the one below.
  545        SwapPaneDown,
  546        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  547        SwapPaneAdjacent,
  548        /// Move the current pane to be at the far left.
  549        MovePaneLeft,
  550        /// Move the current pane to be at the far right.
  551        MovePaneRight,
  552        /// Move the current pane to be at the very top.
  553        MovePaneUp,
  554        /// Move the current pane to be at the very bottom.
  555        MovePaneDown,
  556    ]
  557);
  558
  559#[derive(PartialEq, Eq, Debug)]
  560pub enum CloseIntent {
  561    /// Quit the program entirely.
  562    Quit,
  563    /// Close a window.
  564    CloseWindow,
  565    /// Replace the workspace in an existing window.
  566    ReplaceWindow,
  567}
  568
  569#[derive(Clone)]
  570pub struct Toast {
  571    id: NotificationId,
  572    msg: Cow<'static, str>,
  573    autohide: bool,
  574    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  575}
  576
  577impl Toast {
  578    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  579        Toast {
  580            id,
  581            msg: msg.into(),
  582            on_click: None,
  583            autohide: false,
  584        }
  585    }
  586
  587    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  588    where
  589        M: Into<Cow<'static, str>>,
  590        F: Fn(&mut Window, &mut App) + 'static,
  591    {
  592        self.on_click = Some((message.into(), Arc::new(on_click)));
  593        self
  594    }
  595
  596    pub fn autohide(mut self) -> Self {
  597        self.autohide = true;
  598        self
  599    }
  600}
  601
  602impl PartialEq for Toast {
  603    fn eq(&self, other: &Self) -> bool {
  604        self.id == other.id
  605            && self.msg == other.msg
  606            && self.on_click.is_some() == other.on_click.is_some()
  607    }
  608}
  609
  610/// Opens a new terminal with the specified working directory.
  611#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  612#[action(namespace = workspace)]
  613#[serde(deny_unknown_fields)]
  614pub struct OpenTerminal {
  615    pub working_directory: PathBuf,
  616    /// If true, creates a local terminal even in remote projects.
  617    #[serde(default)]
  618    pub local: bool,
  619}
  620
  621#[derive(
  622    Clone,
  623    Copy,
  624    Debug,
  625    Default,
  626    Hash,
  627    PartialEq,
  628    Eq,
  629    PartialOrd,
  630    Ord,
  631    serde::Serialize,
  632    serde::Deserialize,
  633)]
  634pub struct WorkspaceId(i64);
  635
  636impl WorkspaceId {
  637    pub fn from_i64(value: i64) -> Self {
  638        Self(value)
  639    }
  640}
  641
  642impl StaticColumnCount for WorkspaceId {}
  643impl Bind for WorkspaceId {
  644    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  645        self.0.bind(statement, start_index)
  646    }
  647}
  648impl Column for WorkspaceId {
  649    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  650        i64::column(statement, start_index)
  651            .map(|(i, next_index)| (Self(i), next_index))
  652            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  653    }
  654}
  655impl From<WorkspaceId> for i64 {
  656    fn from(val: WorkspaceId) -> Self {
  657        val.0
  658    }
  659}
  660
  661fn prompt_and_open_paths(
  662    app_state: Arc<AppState>,
  663    options: PathPromptOptions,
  664    create_new_window: bool,
  665    cx: &mut App,
  666) {
  667    if let Some(workspace_window) = local_workspace_windows(cx).into_iter().next() {
  668        workspace_window
  669            .update(cx, |multi_workspace, window, cx| {
  670                let workspace = multi_workspace.workspace().clone();
  671                workspace.update(cx, |workspace, cx| {
  672                    prompt_for_open_path_and_open(
  673                        workspace,
  674                        app_state,
  675                        options,
  676                        create_new_window,
  677                        window,
  678                        cx,
  679                    );
  680                });
  681            })
  682            .ok();
  683    } else {
  684        let task = Workspace::new_local(
  685            Vec::new(),
  686            app_state.clone(),
  687            None,
  688            None,
  689            None,
  690            OpenMode::Activate,
  691            cx,
  692        );
  693        cx.spawn(async move |cx| {
  694            let OpenResult { window, .. } = task.await?;
  695            window.update(cx, |multi_workspace, window, cx| {
  696                window.activate_window();
  697                let workspace = multi_workspace.workspace().clone();
  698                workspace.update(cx, |workspace, cx| {
  699                    prompt_for_open_path_and_open(
  700                        workspace,
  701                        app_state,
  702                        options,
  703                        create_new_window,
  704                        window,
  705                        cx,
  706                    );
  707                });
  708            })?;
  709            anyhow::Ok(())
  710        })
  711        .detach_and_log_err(cx);
  712    }
  713}
  714
  715pub fn prompt_for_open_path_and_open(
  716    workspace: &mut Workspace,
  717    app_state: Arc<AppState>,
  718    options: PathPromptOptions,
  719    create_new_window: bool,
  720    window: &mut Window,
  721    cx: &mut Context<Workspace>,
  722) {
  723    let paths = workspace.prompt_for_open_path(
  724        options,
  725        DirectoryLister::Local(workspace.project().clone(), app_state.fs.clone()),
  726        window,
  727        cx,
  728    );
  729    let multi_workspace_handle = window.window_handle().downcast::<MultiWorkspace>();
  730    cx.spawn_in(window, async move |this, cx| {
  731        let Some(paths) = paths.await.log_err().flatten() else {
  732            return;
  733        };
  734        if !create_new_window {
  735            if let Some(handle) = multi_workspace_handle {
  736                if let Some(task) = handle
  737                    .update(cx, |multi_workspace, window, cx| {
  738                        multi_workspace.open_project(paths, OpenMode::Activate, window, cx)
  739                    })
  740                    .log_err()
  741                {
  742                    task.await.log_err();
  743                }
  744                return;
  745            }
  746        }
  747        if let Some(task) = this
  748            .update_in(cx, |this, window, cx| {
  749                this.open_workspace_for_paths(OpenMode::NewWindow, paths, window, cx)
  750            })
  751            .log_err()
  752        {
  753            task.await.log_err();
  754        }
  755    })
  756    .detach();
  757}
  758
  759pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  760    component::init();
  761    theme_preview::init(cx);
  762    toast_layer::init(cx);
  763    history_manager::init(app_state.fs.clone(), cx);
  764
  765    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  766        .on_action(|_: &Reload, cx| reload(cx))
  767        .on_action(|action: &Open, cx: &mut App| {
  768            let app_state = AppState::global(cx);
  769            prompt_and_open_paths(
  770                app_state,
  771                PathPromptOptions {
  772                    files: true,
  773                    directories: true,
  774                    multiple: true,
  775                    prompt: None,
  776                },
  777                action.create_new_window,
  778                cx,
  779            );
  780        })
  781        .on_action(|_: &OpenFiles, cx: &mut App| {
  782            let directories = cx.can_select_mixed_files_and_dirs();
  783            let app_state = AppState::global(cx);
  784            prompt_and_open_paths(
  785                app_state,
  786                PathPromptOptions {
  787                    files: true,
  788                    directories,
  789                    multiple: true,
  790                    prompt: None,
  791                },
  792                true,
  793                cx,
  794            );
  795        });
  796}
  797
  798type BuildProjectItemFn =
  799    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  800
  801type BuildProjectItemForPathFn =
  802    fn(
  803        &Entity<Project>,
  804        &ProjectPath,
  805        &mut Window,
  806        &mut App,
  807    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  808
  809#[derive(Clone, Default)]
  810struct ProjectItemRegistry {
  811    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  812    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  813}
  814
  815impl ProjectItemRegistry {
  816    fn register<T: ProjectItem>(&mut self) {
  817        self.build_project_item_fns_by_type.insert(
  818            TypeId::of::<T::Item>(),
  819            |item, project, pane, window, cx| {
  820                let item = item.downcast().unwrap();
  821                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  822                    as Box<dyn ItemHandle>
  823            },
  824        );
  825        self.build_project_item_for_path_fns
  826            .push(|project, project_path, window, cx| {
  827                let project_path = project_path.clone();
  828                let is_file = project
  829                    .read(cx)
  830                    .entry_for_path(&project_path, cx)
  831                    .is_some_and(|entry| entry.is_file());
  832                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  833                let is_local = project.read(cx).is_local();
  834                let project_item =
  835                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  836                let project = project.clone();
  837                Some(window.spawn(cx, async move |cx| {
  838                    match project_item.await.with_context(|| {
  839                        format!(
  840                            "opening project path {:?}",
  841                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  842                        )
  843                    }) {
  844                        Ok(project_item) => {
  845                            let project_item = project_item;
  846                            let project_entry_id: Option<ProjectEntryId> =
  847                                project_item.read_with(cx, project::ProjectItem::entry_id);
  848                            let build_workspace_item = Box::new(
  849                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  850                                    Box::new(cx.new(|cx| {
  851                                        T::for_project_item(
  852                                            project,
  853                                            Some(pane),
  854                                            project_item,
  855                                            window,
  856                                            cx,
  857                                        )
  858                                    })) as Box<dyn ItemHandle>
  859                                },
  860                            ) as Box<_>;
  861                            Ok((project_entry_id, build_workspace_item))
  862                        }
  863                        Err(e) => {
  864                            log::warn!("Failed to open a project item: {e:#}");
  865                            if e.error_code() == ErrorCode::Internal {
  866                                if let Some(abs_path) =
  867                                    entry_abs_path.as_deref().filter(|_| is_file)
  868                                {
  869                                    if let Some(broken_project_item_view) =
  870                                        cx.update(|window, cx| {
  871                                            T::for_broken_project_item(
  872                                                abs_path, is_local, &e, window, cx,
  873                                            )
  874                                        })?
  875                                    {
  876                                        let build_workspace_item = Box::new(
  877                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  878                                                cx.new(|_| broken_project_item_view).boxed_clone()
  879                                            },
  880                                        )
  881                                        as Box<_>;
  882                                        return Ok((None, build_workspace_item));
  883                                    }
  884                                }
  885                            }
  886                            Err(e)
  887                        }
  888                    }
  889                }))
  890            });
  891    }
  892
  893    fn open_path(
  894        &self,
  895        project: &Entity<Project>,
  896        path: &ProjectPath,
  897        window: &mut Window,
  898        cx: &mut App,
  899    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  900        let Some(open_project_item) = self
  901            .build_project_item_for_path_fns
  902            .iter()
  903            .rev()
  904            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  905        else {
  906            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  907        };
  908        open_project_item
  909    }
  910
  911    fn build_item<T: project::ProjectItem>(
  912        &self,
  913        item: Entity<T>,
  914        project: Entity<Project>,
  915        pane: Option<&Pane>,
  916        window: &mut Window,
  917        cx: &mut App,
  918    ) -> Option<Box<dyn ItemHandle>> {
  919        let build = self
  920            .build_project_item_fns_by_type
  921            .get(&TypeId::of::<T>())?;
  922        Some(build(item.into_any(), project, pane, window, cx))
  923    }
  924}
  925
  926type WorkspaceItemBuilder =
  927    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  928
  929impl Global for ProjectItemRegistry {}
  930
  931/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  932/// items will get a chance to open the file, starting from the project item that
  933/// was added last.
  934pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  935    cx.default_global::<ProjectItemRegistry>().register::<I>();
  936}
  937
  938#[derive(Default)]
  939pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  940
  941struct FollowableViewDescriptor {
  942    from_state_proto: fn(
  943        Entity<Workspace>,
  944        ViewId,
  945        &mut Option<proto::view::Variant>,
  946        &mut Window,
  947        &mut App,
  948    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  949    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  950}
  951
  952impl Global for FollowableViewRegistry {}
  953
  954impl FollowableViewRegistry {
  955    pub fn register<I: FollowableItem>(cx: &mut App) {
  956        cx.default_global::<Self>().0.insert(
  957            TypeId::of::<I>(),
  958            FollowableViewDescriptor {
  959                from_state_proto: |workspace, id, state, window, cx| {
  960                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  961                        cx.foreground_executor()
  962                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  963                    })
  964                },
  965                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  966            },
  967        );
  968    }
  969
  970    pub fn from_state_proto(
  971        workspace: Entity<Workspace>,
  972        view_id: ViewId,
  973        mut state: Option<proto::view::Variant>,
  974        window: &mut Window,
  975        cx: &mut App,
  976    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  977        cx.update_default_global(|this: &mut Self, cx| {
  978            this.0.values().find_map(|descriptor| {
  979                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  980            })
  981        })
  982    }
  983
  984    pub fn to_followable_view(
  985        view: impl Into<AnyView>,
  986        cx: &App,
  987    ) -> Option<Box<dyn FollowableItemHandle>> {
  988        let this = cx.try_global::<Self>()?;
  989        let view = view.into();
  990        let descriptor = this.0.get(&view.entity_type())?;
  991        Some((descriptor.to_followable_view)(&view))
  992    }
  993}
  994
  995#[derive(Copy, Clone)]
  996struct SerializableItemDescriptor {
  997    deserialize: fn(
  998        Entity<Project>,
  999        WeakEntity<Workspace>,
 1000        WorkspaceId,
 1001        ItemId,
 1002        &mut Window,
 1003        &mut Context<Pane>,
 1004    ) -> Task<Result<Box<dyn ItemHandle>>>,
 1005    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
 1006    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
 1007}
 1008
 1009#[derive(Default)]
 1010struct SerializableItemRegistry {
 1011    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
 1012    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
 1013}
 1014
 1015impl Global for SerializableItemRegistry {}
 1016
 1017impl SerializableItemRegistry {
 1018    fn deserialize(
 1019        item_kind: &str,
 1020        project: Entity<Project>,
 1021        workspace: WeakEntity<Workspace>,
 1022        workspace_id: WorkspaceId,
 1023        item_item: ItemId,
 1024        window: &mut Window,
 1025        cx: &mut Context<Pane>,
 1026    ) -> Task<Result<Box<dyn ItemHandle>>> {
 1027        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1028            return Task::ready(Err(anyhow!(
 1029                "cannot deserialize {}, descriptor not found",
 1030                item_kind
 1031            )));
 1032        };
 1033
 1034        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
 1035    }
 1036
 1037    fn cleanup(
 1038        item_kind: &str,
 1039        workspace_id: WorkspaceId,
 1040        loaded_items: Vec<ItemId>,
 1041        window: &mut Window,
 1042        cx: &mut App,
 1043    ) -> Task<Result<()>> {
 1044        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
 1045            return Task::ready(Err(anyhow!(
 1046                "cannot cleanup {}, descriptor not found",
 1047                item_kind
 1048            )));
 1049        };
 1050
 1051        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
 1052    }
 1053
 1054    fn view_to_serializable_item_handle(
 1055        view: AnyView,
 1056        cx: &App,
 1057    ) -> Option<Box<dyn SerializableItemHandle>> {
 1058        let this = cx.try_global::<Self>()?;
 1059        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
 1060        Some((descriptor.view_to_serializable_item)(view))
 1061    }
 1062
 1063    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
 1064        let this = cx.try_global::<Self>()?;
 1065        this.descriptors_by_kind.get(item_kind).copied()
 1066    }
 1067}
 1068
 1069pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
 1070    let serialized_item_kind = I::serialized_item_kind();
 1071
 1072    let registry = cx.default_global::<SerializableItemRegistry>();
 1073    let descriptor = SerializableItemDescriptor {
 1074        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
 1075            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
 1076            cx.foreground_executor()
 1077                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
 1078        },
 1079        cleanup: |workspace_id, loaded_items, window, cx| {
 1080            I::cleanup(workspace_id, loaded_items, window, cx)
 1081        },
 1082        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
 1083    };
 1084    registry
 1085        .descriptors_by_kind
 1086        .insert(Arc::from(serialized_item_kind), descriptor);
 1087    registry
 1088        .descriptors_by_type
 1089        .insert(TypeId::of::<I>(), descriptor);
 1090}
 1091
 1092pub struct AppState {
 1093    pub languages: Arc<LanguageRegistry>,
 1094    pub client: Arc<Client>,
 1095    pub user_store: Entity<UserStore>,
 1096    pub workspace_store: Entity<WorkspaceStore>,
 1097    pub fs: Arc<dyn fs::Fs>,
 1098    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
 1099    pub node_runtime: NodeRuntime,
 1100    pub session: Entity<AppSession>,
 1101}
 1102
 1103struct GlobalAppState(Arc<AppState>);
 1104
 1105impl Global for GlobalAppState {}
 1106
 1107pub struct WorkspaceStore {
 1108    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1109    client: Arc<Client>,
 1110    _subscriptions: Vec<client::Subscription>,
 1111}
 1112
 1113#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1114pub enum CollaboratorId {
 1115    PeerId(PeerId),
 1116    Agent,
 1117}
 1118
 1119impl From<PeerId> for CollaboratorId {
 1120    fn from(peer_id: PeerId) -> Self {
 1121        CollaboratorId::PeerId(peer_id)
 1122    }
 1123}
 1124
 1125impl From<&PeerId> for CollaboratorId {
 1126    fn from(peer_id: &PeerId) -> Self {
 1127        CollaboratorId::PeerId(*peer_id)
 1128    }
 1129}
 1130
 1131#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1132struct Follower {
 1133    project_id: Option<u64>,
 1134    peer_id: PeerId,
 1135}
 1136
 1137impl AppState {
 1138    #[track_caller]
 1139    pub fn global(cx: &App) -> Arc<Self> {
 1140        cx.global::<GlobalAppState>().0.clone()
 1141    }
 1142    pub fn try_global(cx: &App) -> Option<Arc<Self>> {
 1143        cx.try_global::<GlobalAppState>()
 1144            .map(|state| state.0.clone())
 1145    }
 1146    pub fn set_global(state: Arc<AppState>, cx: &mut App) {
 1147        cx.set_global(GlobalAppState(state));
 1148    }
 1149
 1150    #[cfg(any(test, feature = "test-support"))]
 1151    pub fn test(cx: &mut App) -> Arc<Self> {
 1152        use fs::Fs;
 1153        use node_runtime::NodeRuntime;
 1154        use session::Session;
 1155        use settings::SettingsStore;
 1156
 1157        if !cx.has_global::<SettingsStore>() {
 1158            let settings_store = SettingsStore::test(cx);
 1159            cx.set_global(settings_store);
 1160        }
 1161
 1162        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1163        <dyn Fs>::set_global(fs.clone(), cx);
 1164        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1165        let clock = Arc::new(clock::FakeSystemClock::new());
 1166        let http_client = http_client::FakeHttpClient::with_404_response();
 1167        let client = Client::new(clock, http_client, cx);
 1168        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1169        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1170        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1171
 1172        theme_settings::init(theme::LoadThemes::JustBase, cx);
 1173        client::init(&client, cx);
 1174
 1175        Arc::new(Self {
 1176            client,
 1177            fs,
 1178            languages,
 1179            user_store,
 1180            workspace_store,
 1181            node_runtime: NodeRuntime::unavailable(),
 1182            build_window_options: |_, _| Default::default(),
 1183            session,
 1184        })
 1185    }
 1186}
 1187
 1188struct DelayedDebouncedEditAction {
 1189    task: Option<Task<()>>,
 1190    cancel_channel: Option<oneshot::Sender<()>>,
 1191}
 1192
 1193impl DelayedDebouncedEditAction {
 1194    fn new() -> DelayedDebouncedEditAction {
 1195        DelayedDebouncedEditAction {
 1196            task: None,
 1197            cancel_channel: None,
 1198        }
 1199    }
 1200
 1201    fn fire_new<F>(
 1202        &mut self,
 1203        delay: Duration,
 1204        window: &mut Window,
 1205        cx: &mut Context<Workspace>,
 1206        func: F,
 1207    ) where
 1208        F: 'static
 1209            + Send
 1210            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1211    {
 1212        if let Some(channel) = self.cancel_channel.take() {
 1213            _ = channel.send(());
 1214        }
 1215
 1216        let (sender, mut receiver) = oneshot::channel::<()>();
 1217        self.cancel_channel = Some(sender);
 1218
 1219        let previous_task = self.task.take();
 1220        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1221            let mut timer = cx.background_executor().timer(delay).fuse();
 1222            if let Some(previous_task) = previous_task {
 1223                previous_task.await;
 1224            }
 1225
 1226            futures::select_biased! {
 1227                _ = receiver => return,
 1228                    _ = timer => {}
 1229            }
 1230
 1231            if let Some(result) = workspace
 1232                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1233                .log_err()
 1234            {
 1235                result.await.log_err();
 1236            }
 1237        }));
 1238    }
 1239}
 1240
 1241pub enum Event {
 1242    PaneAdded(Entity<Pane>),
 1243    PaneRemoved,
 1244    ItemAdded {
 1245        item: Box<dyn ItemHandle>,
 1246    },
 1247    ActiveItemChanged,
 1248    ItemRemoved {
 1249        item_id: EntityId,
 1250    },
 1251    UserSavedItem {
 1252        pane: WeakEntity<Pane>,
 1253        item: Box<dyn WeakItemHandle>,
 1254        save_intent: SaveIntent,
 1255    },
 1256    ContactRequestedJoin(u64),
 1257    WorkspaceCreated(WeakEntity<Workspace>),
 1258    OpenBundledFile {
 1259        text: Cow<'static, str>,
 1260        title: &'static str,
 1261        language: &'static str,
 1262    },
 1263    ZoomChanged,
 1264    ModalOpened,
 1265    Activate,
 1266    PanelAdded(AnyView),
 1267}
 1268
 1269#[derive(Debug, Clone)]
 1270pub enum OpenVisible {
 1271    All,
 1272    None,
 1273    OnlyFiles,
 1274    OnlyDirectories,
 1275}
 1276
 1277enum WorkspaceLocation {
 1278    // Valid local paths or SSH project to serialize
 1279    Location(SerializedWorkspaceLocation, PathList),
 1280    // No valid location found hence clear session id
 1281    DetachFromSession,
 1282    // No valid location found to serialize
 1283    None,
 1284}
 1285
 1286type PromptForNewPath = Box<
 1287    dyn Fn(
 1288        &mut Workspace,
 1289        DirectoryLister,
 1290        Option<String>,
 1291        &mut Window,
 1292        &mut Context<Workspace>,
 1293    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1294>;
 1295
 1296type PromptForOpenPath = Box<
 1297    dyn Fn(
 1298        &mut Workspace,
 1299        DirectoryLister,
 1300        &mut Window,
 1301        &mut Context<Workspace>,
 1302    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1303>;
 1304
 1305#[derive(Default)]
 1306struct DispatchingKeystrokes {
 1307    dispatched: HashSet<Vec<Keystroke>>,
 1308    queue: VecDeque<Keystroke>,
 1309    task: Option<Shared<Task<()>>>,
 1310}
 1311
 1312/// Collects everything project-related for a certain window opened.
 1313/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1314///
 1315/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1316/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1317/// that can be used to register a global action to be triggered from any place in the window.
 1318pub struct Workspace {
 1319    weak_self: WeakEntity<Self>,
 1320    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1321    zoomed: Option<AnyWeakView>,
 1322    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1323    zoomed_position: Option<DockPosition>,
 1324    center: PaneGroup,
 1325    left_dock: Entity<Dock>,
 1326    bottom_dock: Entity<Dock>,
 1327    right_dock: Entity<Dock>,
 1328    panes: Vec<Entity<Pane>>,
 1329    active_worktree_override: Option<WorktreeId>,
 1330    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1331    active_pane: Entity<Pane>,
 1332    last_active_center_pane: Option<WeakEntity<Pane>>,
 1333    last_active_view_id: Option<proto::ViewId>,
 1334    status_bar: Entity<StatusBar>,
 1335    pub(crate) modal_layer: Entity<ModalLayer>,
 1336    toast_layer: Entity<ToastLayer>,
 1337    titlebar_item: Option<AnyView>,
 1338    notifications: Notifications,
 1339    suppressed_notifications: HashSet<NotificationId>,
 1340    project: Entity<Project>,
 1341    follower_states: HashMap<CollaboratorId, FollowerState>,
 1342    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1343    window_edited: bool,
 1344    last_window_title: Option<String>,
 1345    dirty_items: HashMap<EntityId, Subscription>,
 1346    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1347    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1348    database_id: Option<WorkspaceId>,
 1349    app_state: Arc<AppState>,
 1350    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1351    _subscriptions: Vec<Subscription>,
 1352    _apply_leader_updates: Task<Result<()>>,
 1353    _observe_current_user: Task<Result<()>>,
 1354    _schedule_serialize_workspace: Option<Task<()>>,
 1355    _serialize_workspace_task: Option<Task<()>>,
 1356    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1357    pane_history_timestamp: Arc<AtomicUsize>,
 1358    bounds: Bounds<Pixels>,
 1359    pub centered_layout: bool,
 1360    bounds_save_task_queued: Option<Task<()>>,
 1361    on_prompt_for_new_path: Option<PromptForNewPath>,
 1362    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1363    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1364    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1365    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1366    _items_serializer: Task<Result<()>>,
 1367    session_id: Option<String>,
 1368    scheduled_tasks: Vec<Task<()>>,
 1369    last_open_dock_positions: Vec<DockPosition>,
 1370    removing: bool,
 1371    open_in_dev_container: bool,
 1372    _dev_container_task: Option<Task<Result<()>>>,
 1373    _panels_task: Option<Task<Result<()>>>,
 1374    sidebar_focus_handle: Option<FocusHandle>,
 1375    multi_workspace: Option<WeakEntity<MultiWorkspace>>,
 1376}
 1377
 1378impl EventEmitter<Event> for Workspace {}
 1379
 1380#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1381pub struct ViewId {
 1382    pub creator: CollaboratorId,
 1383    pub id: u64,
 1384}
 1385
 1386pub struct FollowerState {
 1387    center_pane: Entity<Pane>,
 1388    dock_pane: Option<Entity<Pane>>,
 1389    active_view_id: Option<ViewId>,
 1390    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1391}
 1392
 1393struct FollowerView {
 1394    view: Box<dyn FollowableItemHandle>,
 1395    location: Option<proto::PanelId>,
 1396}
 1397
 1398#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 1399pub enum OpenMode {
 1400    /// Open the workspace in a new window.
 1401    NewWindow,
 1402    /// Add to the window's multi workspace without activating it (used during deserialization).
 1403    Add,
 1404    /// Add to the window's multi workspace and activate it.
 1405    #[default]
 1406    Activate,
 1407}
 1408
 1409impl Workspace {
 1410    pub fn new(
 1411        workspace_id: Option<WorkspaceId>,
 1412        project: Entity<Project>,
 1413        app_state: Arc<AppState>,
 1414        window: &mut Window,
 1415        cx: &mut Context<Self>,
 1416    ) -> Self {
 1417        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1418            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1419                if let TrustedWorktreesEvent::Trusted(..) = e {
 1420                    // Do not persist auto trusted worktrees
 1421                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1422                        worktrees_store.update(cx, |worktrees_store, cx| {
 1423                            worktrees_store.schedule_serialization(
 1424                                cx,
 1425                                |new_trusted_worktrees, cx| {
 1426                                    let timeout =
 1427                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1428                                    let db = WorkspaceDb::global(cx);
 1429                                    cx.background_spawn(async move {
 1430                                        timeout.await;
 1431                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1432                                            .await
 1433                                            .log_err();
 1434                                    })
 1435                                },
 1436                            )
 1437                        });
 1438                    }
 1439                }
 1440            })
 1441            .detach();
 1442
 1443            cx.observe_global::<SettingsStore>(|_, cx| {
 1444                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1445                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1446                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1447                            trusted_worktrees.auto_trust_all(cx);
 1448                        })
 1449                    }
 1450                }
 1451            })
 1452            .detach();
 1453        }
 1454
 1455        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1456            match event {
 1457                project::Event::RemoteIdChanged(_) => {
 1458                    this.update_window_title(window, cx);
 1459                }
 1460
 1461                project::Event::CollaboratorLeft(peer_id) => {
 1462                    this.collaborator_left(*peer_id, window, cx);
 1463                }
 1464
 1465                &project::Event::WorktreeRemoved(_) => {
 1466                    this.update_window_title(window, cx);
 1467                    this.serialize_workspace(window, cx);
 1468                    this.update_history(cx);
 1469                }
 1470
 1471                &project::Event::WorktreeAdded(id) => {
 1472                    this.update_window_title(window, cx);
 1473                    if this
 1474                        .project()
 1475                        .read(cx)
 1476                        .worktree_for_id(id, cx)
 1477                        .is_some_and(|wt| wt.read(cx).is_visible())
 1478                    {
 1479                        this.serialize_workspace(window, cx);
 1480                        this.update_history(cx);
 1481                    }
 1482                }
 1483                project::Event::WorktreeUpdatedEntries(..) => {
 1484                    this.update_window_title(window, cx);
 1485                    this.serialize_workspace(window, cx);
 1486                }
 1487
 1488                project::Event::DisconnectedFromHost => {
 1489                    this.update_window_edited(window, cx);
 1490                    let leaders_to_unfollow =
 1491                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1492                    for leader_id in leaders_to_unfollow {
 1493                        this.unfollow(leader_id, window, cx);
 1494                    }
 1495                }
 1496
 1497                project::Event::DisconnectedFromRemote {
 1498                    server_not_running: _,
 1499                } => {
 1500                    this.update_window_edited(window, cx);
 1501                }
 1502
 1503                project::Event::Closed => {
 1504                    window.remove_window();
 1505                }
 1506
 1507                project::Event::DeletedEntry(_, entry_id) => {
 1508                    for pane in this.panes.iter() {
 1509                        pane.update(cx, |pane, cx| {
 1510                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1511                        });
 1512                    }
 1513                }
 1514
 1515                project::Event::Toast {
 1516                    notification_id,
 1517                    message,
 1518                    link,
 1519                } => this.show_notification(
 1520                    NotificationId::named(notification_id.clone()),
 1521                    cx,
 1522                    |cx| {
 1523                        let mut notification = MessageNotification::new(message.clone(), cx);
 1524                        if let Some(link) = link {
 1525                            notification = notification
 1526                                .more_info_message(link.label)
 1527                                .more_info_url(link.url);
 1528                        }
 1529
 1530                        cx.new(|_| notification)
 1531                    },
 1532                ),
 1533
 1534                project::Event::HideToast { notification_id } => {
 1535                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1536                }
 1537
 1538                project::Event::LanguageServerPrompt(request) => {
 1539                    struct LanguageServerPrompt;
 1540
 1541                    this.show_notification(
 1542                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1543                        cx,
 1544                        |cx| {
 1545                            cx.new(|cx| {
 1546                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1547                            })
 1548                        },
 1549                    );
 1550                }
 1551
 1552                project::Event::AgentLocationChanged => {
 1553                    this.handle_agent_location_changed(window, cx)
 1554                }
 1555
 1556                _ => {}
 1557            }
 1558            cx.notify()
 1559        })
 1560        .detach();
 1561
 1562        cx.subscribe_in(
 1563            &project.read(cx).breakpoint_store(),
 1564            window,
 1565            |workspace, _, event, window, cx| match event {
 1566                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1567                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1568                    workspace.serialize_workspace(window, cx);
 1569                }
 1570                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1571            },
 1572        )
 1573        .detach();
 1574        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1575            cx.subscribe_in(
 1576                &toolchain_store,
 1577                window,
 1578                |workspace, _, event, window, cx| match event {
 1579                    ToolchainStoreEvent::CustomToolchainsModified => {
 1580                        workspace.serialize_workspace(window, cx);
 1581                    }
 1582                    _ => {}
 1583                },
 1584            )
 1585            .detach();
 1586        }
 1587
 1588        cx.on_focus_lost(window, |this, window, cx| {
 1589            let focus_handle = this.focus_handle(cx);
 1590            window.focus(&focus_handle, cx);
 1591        })
 1592        .detach();
 1593
 1594        let weak_handle = cx.entity().downgrade();
 1595        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1596
 1597        let center_pane = cx.new(|cx| {
 1598            let mut center_pane = Pane::new(
 1599                weak_handle.clone(),
 1600                project.clone(),
 1601                pane_history_timestamp.clone(),
 1602                None,
 1603                NewFile.boxed_clone(),
 1604                true,
 1605                window,
 1606                cx,
 1607            );
 1608            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1609            center_pane.set_should_display_welcome_page(true);
 1610            center_pane
 1611        });
 1612        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1613            .detach();
 1614
 1615        window.focus(&center_pane.focus_handle(cx), cx);
 1616
 1617        cx.emit(Event::PaneAdded(center_pane.clone()));
 1618
 1619        let any_window_handle = window.window_handle();
 1620        app_state.workspace_store.update(cx, |store, _| {
 1621            store
 1622                .workspaces
 1623                .insert((any_window_handle, weak_handle.clone()));
 1624        });
 1625
 1626        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1627        let mut connection_status = app_state.client.status();
 1628        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1629            current_user.next().await;
 1630            connection_status.next().await;
 1631            let mut stream =
 1632                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1633
 1634            while stream.recv().await.is_some() {
 1635                this.update(cx, |_, cx| cx.notify())?;
 1636            }
 1637            anyhow::Ok(())
 1638        });
 1639
 1640        // All leader updates are enqueued and then processed in a single task, so
 1641        // that each asynchronous operation can be run in order.
 1642        let (leader_updates_tx, mut leader_updates_rx) =
 1643            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1644        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1645            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1646                Self::process_leader_update(&this, leader_id, update, cx)
 1647                    .await
 1648                    .log_err();
 1649            }
 1650
 1651            Ok(())
 1652        });
 1653
 1654        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1655        let modal_layer = cx.new(|_| ModalLayer::new());
 1656        let toast_layer = cx.new(|_| ToastLayer::new());
 1657        cx.subscribe(
 1658            &modal_layer,
 1659            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1660                cx.emit(Event::ModalOpened);
 1661            },
 1662        )
 1663        .detach();
 1664
 1665        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1666        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1667        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1668        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1669        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1670        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1671        let multi_workspace = window
 1672            .root::<MultiWorkspace>()
 1673            .flatten()
 1674            .map(|mw| mw.downgrade());
 1675        let status_bar = cx.new(|cx| {
 1676            let mut status_bar =
 1677                StatusBar::new(&center_pane.clone(), multi_workspace.clone(), window, cx);
 1678            status_bar.add_left_item(left_dock_buttons, window, cx);
 1679            status_bar.add_right_item(right_dock_buttons, window, cx);
 1680            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1681            status_bar
 1682        });
 1683
 1684        let session_id = app_state.session.read(cx).id().to_owned();
 1685
 1686        let mut active_call = None;
 1687        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1688            let subscriptions =
 1689                vec![
 1690                    call.0
 1691                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1692                ];
 1693            active_call = Some((call, subscriptions));
 1694        }
 1695
 1696        let (serializable_items_tx, serializable_items_rx) =
 1697            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1698        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1699            Self::serialize_items(&this, serializable_items_rx, cx).await
 1700        });
 1701
 1702        let subscriptions = vec![
 1703            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1704            cx.observe_window_bounds(window, move |this, window, cx| {
 1705                if this.bounds_save_task_queued.is_some() {
 1706                    return;
 1707                }
 1708                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1709                    cx.background_executor()
 1710                        .timer(Duration::from_millis(100))
 1711                        .await;
 1712                    this.update_in(cx, |this, window, cx| {
 1713                        this.save_window_bounds(window, cx).detach();
 1714                        this.bounds_save_task_queued.take();
 1715                    })
 1716                    .ok();
 1717                }));
 1718                cx.notify();
 1719            }),
 1720            cx.observe_window_appearance(window, |_, window, cx| {
 1721                let window_appearance = window.appearance();
 1722
 1723                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1724
 1725                theme_settings::reload_theme(cx);
 1726                theme_settings::reload_icon_theme(cx);
 1727            }),
 1728            cx.on_release({
 1729                let weak_handle = weak_handle.clone();
 1730                move |this, cx| {
 1731                    this.app_state.workspace_store.update(cx, move |store, _| {
 1732                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1733                    })
 1734                }
 1735            }),
 1736        ];
 1737
 1738        cx.defer_in(window, move |this, window, cx| {
 1739            this.update_window_title(window, cx);
 1740            this.show_initial_notifications(cx);
 1741        });
 1742
 1743        let mut center = PaneGroup::new(center_pane.clone());
 1744        center.set_is_center(true);
 1745        center.mark_positions(cx);
 1746
 1747        Workspace {
 1748            weak_self: weak_handle.clone(),
 1749            zoomed: None,
 1750            zoomed_position: None,
 1751            previous_dock_drag_coordinates: None,
 1752            center,
 1753            panes: vec![center_pane.clone()],
 1754            panes_by_item: Default::default(),
 1755            active_pane: center_pane.clone(),
 1756            last_active_center_pane: Some(center_pane.downgrade()),
 1757            last_active_view_id: None,
 1758            status_bar,
 1759            modal_layer,
 1760            toast_layer,
 1761            titlebar_item: None,
 1762            active_worktree_override: None,
 1763            notifications: Notifications::default(),
 1764            suppressed_notifications: HashSet::default(),
 1765            left_dock,
 1766            bottom_dock,
 1767            right_dock,
 1768            _panels_task: None,
 1769            project: project.clone(),
 1770            follower_states: Default::default(),
 1771            last_leaders_by_pane: Default::default(),
 1772            dispatching_keystrokes: Default::default(),
 1773            window_edited: false,
 1774            last_window_title: None,
 1775            dirty_items: Default::default(),
 1776            active_call,
 1777            database_id: workspace_id,
 1778            app_state,
 1779            _observe_current_user,
 1780            _apply_leader_updates,
 1781            _schedule_serialize_workspace: None,
 1782            _serialize_workspace_task: None,
 1783            _schedule_serialize_ssh_paths: None,
 1784            leader_updates_tx,
 1785            _subscriptions: subscriptions,
 1786            pane_history_timestamp,
 1787            workspace_actions: Default::default(),
 1788            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1789            bounds: Default::default(),
 1790            centered_layout: false,
 1791            bounds_save_task_queued: None,
 1792            on_prompt_for_new_path: None,
 1793            on_prompt_for_open_path: None,
 1794            terminal_provider: None,
 1795            debugger_provider: None,
 1796            serializable_items_tx,
 1797            _items_serializer,
 1798            session_id: Some(session_id),
 1799
 1800            scheduled_tasks: Vec::new(),
 1801            last_open_dock_positions: Vec::new(),
 1802            removing: false,
 1803            sidebar_focus_handle: None,
 1804            multi_workspace,
 1805            open_in_dev_container: false,
 1806            _dev_container_task: None,
 1807        }
 1808    }
 1809
 1810    pub fn new_local(
 1811        abs_paths: Vec<PathBuf>,
 1812        app_state: Arc<AppState>,
 1813        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1814        env: Option<HashMap<String, String>>,
 1815        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1816        open_mode: OpenMode,
 1817        cx: &mut App,
 1818    ) -> Task<anyhow::Result<OpenResult>> {
 1819        let project_handle = Project::local(
 1820            app_state.client.clone(),
 1821            app_state.node_runtime.clone(),
 1822            app_state.user_store.clone(),
 1823            app_state.languages.clone(),
 1824            app_state.fs.clone(),
 1825            env,
 1826            Default::default(),
 1827            cx,
 1828        );
 1829
 1830        let db = WorkspaceDb::global(cx);
 1831        let kvp = db::kvp::KeyValueStore::global(cx);
 1832        cx.spawn(async move |cx| {
 1833            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1834            for path in abs_paths.into_iter() {
 1835                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1836                    paths_to_open.push(canonical)
 1837                } else {
 1838                    paths_to_open.push(path)
 1839                }
 1840            }
 1841
 1842            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1843
 1844            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1845                paths_to_open = paths.ordered_paths().cloned().collect();
 1846                if !paths.is_lexicographically_ordered() {
 1847                    project_handle.update(cx, |project, cx| {
 1848                        project.set_worktrees_reordered(true, cx);
 1849                    });
 1850                }
 1851            }
 1852
 1853            // Get project paths for all of the abs_paths
 1854            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1855                Vec::with_capacity(paths_to_open.len());
 1856
 1857            for path in paths_to_open.into_iter() {
 1858                if let Some((_, project_entry)) = cx
 1859                    .update(|cx| {
 1860                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1861                    })
 1862                    .await
 1863                    .log_err()
 1864                {
 1865                    project_paths.push((path, Some(project_entry)));
 1866                } else {
 1867                    project_paths.push((path, None));
 1868                }
 1869            }
 1870
 1871            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1872                serialized_workspace.id
 1873            } else {
 1874                db.next_id().await.unwrap_or_else(|_| Default::default())
 1875            };
 1876
 1877            let toolchains = db.toolchains(workspace_id).await?;
 1878
 1879            for (toolchain, worktree_path, path) in toolchains {
 1880                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1881                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1882                    this.find_worktree(&worktree_path, cx)
 1883                        .and_then(|(worktree, rel_path)| {
 1884                            if rel_path.is_empty() {
 1885                                Some(worktree.read(cx).id())
 1886                            } else {
 1887                                None
 1888                            }
 1889                        })
 1890                }) else {
 1891                    // We did not find a worktree with a given path, but that's whatever.
 1892                    continue;
 1893                };
 1894                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1895                    continue;
 1896                }
 1897
 1898                project_handle
 1899                    .update(cx, |this, cx| {
 1900                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1901                    })
 1902                    .await;
 1903            }
 1904            if let Some(workspace) = serialized_workspace.as_ref() {
 1905                project_handle.update(cx, |this, cx| {
 1906                    for (scope, toolchains) in &workspace.user_toolchains {
 1907                        for toolchain in toolchains {
 1908                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1909                        }
 1910                    }
 1911                });
 1912            }
 1913
 1914            let window_to_replace = match open_mode {
 1915                OpenMode::NewWindow => None,
 1916                _ => requesting_window,
 1917            };
 1918
 1919            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1920                if let Some(window) = window_to_replace {
 1921                    let centered_layout = serialized_workspace
 1922                        .as_ref()
 1923                        .map(|w| w.centered_layout)
 1924                        .unwrap_or(false);
 1925
 1926                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1927                        let workspace = cx.new(|cx| {
 1928                            let mut workspace = Workspace::new(
 1929                                Some(workspace_id),
 1930                                project_handle.clone(),
 1931                                app_state.clone(),
 1932                                window,
 1933                                cx,
 1934                            );
 1935
 1936                            workspace.centered_layout = centered_layout;
 1937
 1938                            // Call init callback to add items before window renders
 1939                            if let Some(init) = init {
 1940                                init(&mut workspace, window, cx);
 1941                            }
 1942
 1943                            workspace
 1944                        });
 1945                        match open_mode {
 1946                            OpenMode::Activate => {
 1947                                multi_workspace.activate(workspace.clone(), window, cx);
 1948                            }
 1949                            OpenMode::Add => {
 1950                                multi_workspace.add(workspace.clone(), &*window, cx);
 1951                            }
 1952                            OpenMode::NewWindow => {
 1953                                unreachable!()
 1954                            }
 1955                        }
 1956                        workspace
 1957                    })?;
 1958                    (window, workspace)
 1959                } else {
 1960                    let window_bounds_override = window_bounds_env_override();
 1961
 1962                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1963                        (Some(WindowBounds::Windowed(bounds)), None)
 1964                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1965                        && let Some(display) = workspace.display
 1966                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1967                    {
 1968                        // Reopening an existing workspace - restore its saved bounds
 1969                        (Some(bounds.0), Some(display))
 1970                    } else if let Some((display, bounds)) =
 1971                        persistence::read_default_window_bounds(&kvp)
 1972                    {
 1973                        // New or empty workspace - use the last known window bounds
 1974                        (Some(bounds), Some(display))
 1975                    } else {
 1976                        // New window - let GPUI's default_bounds() handle cascading
 1977                        (None, None)
 1978                    };
 1979
 1980                    // Use the serialized workspace to construct the new window
 1981                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1982                    options.window_bounds = window_bounds;
 1983                    let centered_layout = serialized_workspace
 1984                        .as_ref()
 1985                        .map(|w| w.centered_layout)
 1986                        .unwrap_or(false);
 1987                    let window = cx.open_window(options, {
 1988                        let app_state = app_state.clone();
 1989                        let project_handle = project_handle.clone();
 1990                        move |window, cx| {
 1991                            let workspace = cx.new(|cx| {
 1992                                let mut workspace = Workspace::new(
 1993                                    Some(workspace_id),
 1994                                    project_handle,
 1995                                    app_state,
 1996                                    window,
 1997                                    cx,
 1998                                );
 1999                                workspace.centered_layout = centered_layout;
 2000
 2001                                // Call init callback to add items before window renders
 2002                                if let Some(init) = init {
 2003                                    init(&mut workspace, window, cx);
 2004                                }
 2005
 2006                                workspace
 2007                            });
 2008                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 2009                        }
 2010                    })?;
 2011                    let workspace =
 2012                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 2013                            multi_workspace.workspace().clone()
 2014                        })?;
 2015                    (window, workspace)
 2016                };
 2017
 2018            notify_if_database_failed(window, cx);
 2019            // Check if this is an empty workspace (no paths to open)
 2020            // An empty workspace is one where project_paths is empty
 2021            let is_empty_workspace = project_paths.is_empty();
 2022            // Check if serialized workspace has paths before it's moved
 2023            let serialized_workspace_has_paths = serialized_workspace
 2024                .as_ref()
 2025                .map(|ws| !ws.paths.is_empty())
 2026                .unwrap_or(false);
 2027
 2028            let opened_items = window
 2029                .update(cx, |_, window, cx| {
 2030                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 2031                        open_items(serialized_workspace, project_paths, window, cx)
 2032                    })
 2033                })?
 2034                .await
 2035                .unwrap_or_default();
 2036
 2037            // Restore default dock state for empty workspaces
 2038            // Only restore if:
 2039            // 1. This is an empty workspace (no paths), AND
 2040            // 2. The serialized workspace either doesn't exist or has no paths
 2041            if is_empty_workspace && !serialized_workspace_has_paths {
 2042                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 2043                    window
 2044                        .update(cx, |_, window, cx| {
 2045                            workspace.update(cx, |workspace, cx| {
 2046                                for (dock, serialized_dock) in [
 2047                                    (&workspace.right_dock, &default_docks.right),
 2048                                    (&workspace.left_dock, &default_docks.left),
 2049                                    (&workspace.bottom_dock, &default_docks.bottom),
 2050                                ] {
 2051                                    dock.update(cx, |dock, cx| {
 2052                                        dock.serialized_dock = Some(serialized_dock.clone());
 2053                                        dock.restore_state(window, cx);
 2054                                    });
 2055                                }
 2056                                cx.notify();
 2057                            });
 2058                        })
 2059                        .log_err();
 2060                }
 2061            }
 2062
 2063            window
 2064                .update(cx, |_, _window, cx| {
 2065                    workspace.update(cx, |this: &mut Workspace, cx| {
 2066                        this.update_history(cx);
 2067                    });
 2068                })
 2069                .log_err();
 2070            Ok(OpenResult {
 2071                window,
 2072                workspace,
 2073                opened_items,
 2074            })
 2075        })
 2076    }
 2077
 2078    pub fn project_group_key(&self, cx: &App) -> ProjectGroupKey {
 2079        self.project.read(cx).project_group_key(cx)
 2080    }
 2081
 2082    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2083        self.weak_self.clone()
 2084    }
 2085
 2086    pub fn left_dock(&self) -> &Entity<Dock> {
 2087        &self.left_dock
 2088    }
 2089
 2090    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2091        &self.bottom_dock
 2092    }
 2093
 2094    pub fn set_bottom_dock_layout(
 2095        &mut self,
 2096        layout: BottomDockLayout,
 2097        window: &mut Window,
 2098        cx: &mut Context<Self>,
 2099    ) {
 2100        let fs = self.project().read(cx).fs();
 2101        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2102            content.workspace.bottom_dock_layout = Some(layout);
 2103        });
 2104
 2105        cx.notify();
 2106        self.serialize_workspace(window, cx);
 2107    }
 2108
 2109    pub fn right_dock(&self) -> &Entity<Dock> {
 2110        &self.right_dock
 2111    }
 2112
 2113    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2114        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2115    }
 2116
 2117    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2118        let left_dock = self.left_dock.read(cx);
 2119        let left_visible = left_dock.is_open();
 2120        let left_active_panel = left_dock
 2121            .active_panel()
 2122            .map(|panel| panel.persistent_name().to_string());
 2123        // `zoomed_position` is kept in sync with individual panel zoom state
 2124        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2125        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2126
 2127        let right_dock = self.right_dock.read(cx);
 2128        let right_visible = right_dock.is_open();
 2129        let right_active_panel = right_dock
 2130            .active_panel()
 2131            .map(|panel| panel.persistent_name().to_string());
 2132        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2133
 2134        let bottom_dock = self.bottom_dock.read(cx);
 2135        let bottom_visible = bottom_dock.is_open();
 2136        let bottom_active_panel = bottom_dock
 2137            .active_panel()
 2138            .map(|panel| panel.persistent_name().to_string());
 2139        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2140
 2141        DockStructure {
 2142            left: DockData {
 2143                visible: left_visible,
 2144                active_panel: left_active_panel,
 2145                zoom: left_dock_zoom,
 2146            },
 2147            right: DockData {
 2148                visible: right_visible,
 2149                active_panel: right_active_panel,
 2150                zoom: right_dock_zoom,
 2151            },
 2152            bottom: DockData {
 2153                visible: bottom_visible,
 2154                active_panel: bottom_active_panel,
 2155                zoom: bottom_dock_zoom,
 2156            },
 2157        }
 2158    }
 2159
 2160    pub fn set_dock_structure(
 2161        &self,
 2162        docks: DockStructure,
 2163        window: &mut Window,
 2164        cx: &mut Context<Self>,
 2165    ) {
 2166        for (dock, data) in [
 2167            (&self.left_dock, docks.left),
 2168            (&self.bottom_dock, docks.bottom),
 2169            (&self.right_dock, docks.right),
 2170        ] {
 2171            dock.update(cx, |dock, cx| {
 2172                dock.serialized_dock = Some(data);
 2173                dock.restore_state(window, cx);
 2174            });
 2175        }
 2176    }
 2177
 2178    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2179        self.items(cx)
 2180            .filter_map(|item| {
 2181                let project_path = item.project_path(cx)?;
 2182                self.project.read(cx).absolute_path(&project_path, cx)
 2183            })
 2184            .collect()
 2185    }
 2186
 2187    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2188        match position {
 2189            DockPosition::Left => &self.left_dock,
 2190            DockPosition::Bottom => &self.bottom_dock,
 2191            DockPosition::Right => &self.right_dock,
 2192        }
 2193    }
 2194
 2195    pub fn agent_panel_position(&self, cx: &App) -> Option<DockPosition> {
 2196        self.all_docks().into_iter().find_map(|dock| {
 2197            let dock = dock.read(cx);
 2198            dock.has_agent_panel(cx).then_some(dock.position())
 2199        })
 2200    }
 2201
 2202    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2203        self.all_docks().into_iter().find_map(|dock| {
 2204            let dock = dock.read(cx);
 2205            let panel = dock.panel::<T>()?;
 2206            dock.stored_panel_size_state(&panel)
 2207        })
 2208    }
 2209
 2210    pub fn persisted_panel_size_state(
 2211        &self,
 2212        panel_key: &'static str,
 2213        cx: &App,
 2214    ) -> Option<dock::PanelSizeState> {
 2215        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2216    }
 2217
 2218    pub fn persist_panel_size_state(
 2219        &self,
 2220        panel_key: &str,
 2221        size_state: dock::PanelSizeState,
 2222        cx: &mut App,
 2223    ) {
 2224        let Some(workspace_id) = self
 2225            .database_id()
 2226            .map(|id| i64::from(id).to_string())
 2227            .or(self.session_id())
 2228        else {
 2229            return;
 2230        };
 2231
 2232        let kvp = db::kvp::KeyValueStore::global(cx);
 2233        let panel_key = panel_key.to_string();
 2234        cx.background_spawn(async move {
 2235            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2236            scope
 2237                .write(
 2238                    format!("{workspace_id}:{panel_key}"),
 2239                    serde_json::to_string(&size_state)?,
 2240                )
 2241                .await
 2242        })
 2243        .detach_and_log_err(cx);
 2244    }
 2245
 2246    pub fn set_panel_size_state<T: Panel>(
 2247        &mut self,
 2248        size_state: dock::PanelSizeState,
 2249        window: &mut Window,
 2250        cx: &mut Context<Self>,
 2251    ) -> bool {
 2252        let Some(panel) = self.panel::<T>(cx) else {
 2253            return false;
 2254        };
 2255
 2256        let dock = self.dock_at_position(panel.position(window, cx));
 2257        let did_set = dock.update(cx, |dock, cx| {
 2258            dock.set_panel_size_state(&panel, size_state, cx)
 2259        });
 2260
 2261        if did_set {
 2262            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2263        }
 2264
 2265        did_set
 2266    }
 2267
 2268    pub fn toggle_dock_panel_flexible_size(
 2269        &self,
 2270        dock: &Entity<Dock>,
 2271        panel: &dyn PanelHandle,
 2272        window: &mut Window,
 2273        cx: &mut App,
 2274    ) {
 2275        let position = dock.read(cx).position();
 2276        let current_size = self.dock_size(&dock.read(cx), window, cx);
 2277        let current_flex =
 2278            current_size.and_then(|size| self.dock_flex_for_size(position, size, window, cx));
 2279        dock.update(cx, |dock, cx| {
 2280            dock.toggle_panel_flexible_size(panel, current_size, current_flex, window, cx);
 2281        });
 2282    }
 2283
 2284    fn dock_size(&self, dock: &Dock, window: &Window, cx: &App) -> Option<Pixels> {
 2285        let panel = dock.active_panel()?;
 2286        let size_state = dock
 2287            .stored_panel_size_state(panel.as_ref())
 2288            .unwrap_or_default();
 2289        let position = dock.position();
 2290
 2291        let use_flex = panel.has_flexible_size(window, cx);
 2292
 2293        if position.axis() == Axis::Horizontal
 2294            && use_flex
 2295            && let Some(flex) = size_state.flex.or_else(|| self.default_dock_flex(position))
 2296        {
 2297            let workspace_width = self.bounds.size.width;
 2298            if workspace_width <= Pixels::ZERO {
 2299                return None;
 2300            }
 2301            let flex = flex.max(0.001);
 2302            let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2303            if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2304                // Both docks are flex items sharing the full workspace width.
 2305                let total_flex = flex + 1.0 + opposite_flex;
 2306                return Some((flex / total_flex * workspace_width).max(RESIZE_HANDLE_SIZE));
 2307            } else {
 2308                // Opposite dock is fixed-width; flex items share (W - fixed).
 2309                let opposite_fixed = opposite
 2310                    .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2311                    .unwrap_or_default();
 2312                let available = (workspace_width - opposite_fixed).max(RESIZE_HANDLE_SIZE);
 2313                return Some((flex / (flex + 1.0) * available).max(RESIZE_HANDLE_SIZE));
 2314            }
 2315        }
 2316
 2317        Some(
 2318            size_state
 2319                .size
 2320                .unwrap_or_else(|| panel.default_size(window, cx)),
 2321        )
 2322    }
 2323
 2324    pub fn dock_flex_for_size(
 2325        &self,
 2326        position: DockPosition,
 2327        size: Pixels,
 2328        window: &Window,
 2329        cx: &App,
 2330    ) -> Option<f32> {
 2331        if position.axis() != Axis::Horizontal {
 2332            return None;
 2333        }
 2334
 2335        let workspace_width = self.bounds.size.width;
 2336        if workspace_width <= Pixels::ZERO {
 2337            return None;
 2338        }
 2339
 2340        let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2341        if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2342            let size = size.clamp(px(0.), workspace_width - px(1.));
 2343            Some((size * (1.0 + opposite_flex) / (workspace_width - size)).max(0.0))
 2344        } else {
 2345            let opposite_width = opposite
 2346                .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2347                .unwrap_or_default();
 2348            let available = (workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE);
 2349            let remaining = (available - size).max(px(1.));
 2350            Some((size / remaining).max(0.0))
 2351        }
 2352    }
 2353
 2354    fn opposite_dock_panel_and_size_state(
 2355        &self,
 2356        position: DockPosition,
 2357        window: &Window,
 2358        cx: &App,
 2359    ) -> Option<(Arc<dyn PanelHandle>, PanelSizeState)> {
 2360        let opposite_position = match position {
 2361            DockPosition::Left => DockPosition::Right,
 2362            DockPosition::Right => DockPosition::Left,
 2363            DockPosition::Bottom => return None,
 2364        };
 2365
 2366        let opposite_dock = self.dock_at_position(opposite_position).read(cx);
 2367        let panel = opposite_dock.visible_panel()?;
 2368        let mut size_state = opposite_dock
 2369            .stored_panel_size_state(panel.as_ref())
 2370            .unwrap_or_default();
 2371        if size_state.flex.is_none() && panel.has_flexible_size(window, cx) {
 2372            size_state.flex = self.default_dock_flex(opposite_position);
 2373        }
 2374        Some((panel.clone(), size_state))
 2375    }
 2376
 2377    pub fn default_dock_flex(&self, position: DockPosition) -> Option<f32> {
 2378        if position.axis() != Axis::Horizontal {
 2379            return None;
 2380        }
 2381
 2382        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2383        Some(self.center.width_fraction_for_pane(&pane).unwrap_or(1.0))
 2384    }
 2385
 2386    pub fn is_edited(&self) -> bool {
 2387        self.window_edited
 2388    }
 2389
 2390    pub fn add_panel<T: Panel>(
 2391        &mut self,
 2392        panel: Entity<T>,
 2393        window: &mut Window,
 2394        cx: &mut Context<Self>,
 2395    ) {
 2396        let focus_handle = panel.panel_focus_handle(cx);
 2397        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2398            .detach();
 2399
 2400        let dock_position = panel.position(window, cx);
 2401        let dock = self.dock_at_position(dock_position);
 2402        let any_panel = panel.to_any();
 2403        let persisted_size_state =
 2404            self.persisted_panel_size_state(T::panel_key(), cx)
 2405                .or_else(|| {
 2406                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2407                        let state = dock::PanelSizeState {
 2408                            size: Some(size),
 2409                            flex: None,
 2410                        };
 2411                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2412                        state
 2413                    })
 2414                });
 2415
 2416        dock.update(cx, |dock, cx| {
 2417            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2418            if let Some(size_state) = persisted_size_state {
 2419                dock.set_panel_size_state(&panel, size_state, cx);
 2420            }
 2421            index
 2422        });
 2423
 2424        cx.emit(Event::PanelAdded(any_panel));
 2425    }
 2426
 2427    pub fn remove_panel<T: Panel>(
 2428        &mut self,
 2429        panel: &Entity<T>,
 2430        window: &mut Window,
 2431        cx: &mut Context<Self>,
 2432    ) {
 2433        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2434            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2435        }
 2436    }
 2437
 2438    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2439        &self.status_bar
 2440    }
 2441
 2442    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2443        self.sidebar_focus_handle = handle;
 2444    }
 2445
 2446    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2447        StatusBarSettings::get_global(cx).show
 2448    }
 2449
 2450    pub fn multi_workspace(&self) -> Option<&WeakEntity<MultiWorkspace>> {
 2451        self.multi_workspace.as_ref()
 2452    }
 2453
 2454    pub fn set_multi_workspace(
 2455        &mut self,
 2456        multi_workspace: WeakEntity<MultiWorkspace>,
 2457        cx: &mut App,
 2458    ) {
 2459        self.status_bar.update(cx, |status_bar, cx| {
 2460            status_bar.set_multi_workspace(multi_workspace.clone(), cx);
 2461        });
 2462        self.multi_workspace = Some(multi_workspace);
 2463    }
 2464
 2465    pub fn app_state(&self) -> &Arc<AppState> {
 2466        &self.app_state
 2467    }
 2468
 2469    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2470        self._panels_task = Some(task);
 2471    }
 2472
 2473    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2474        self._panels_task.take()
 2475    }
 2476
 2477    pub fn user_store(&self) -> &Entity<UserStore> {
 2478        &self.app_state.user_store
 2479    }
 2480
 2481    pub fn project(&self) -> &Entity<Project> {
 2482        &self.project
 2483    }
 2484
 2485    pub fn path_style(&self, cx: &App) -> PathStyle {
 2486        self.project.read(cx).path_style(cx)
 2487    }
 2488
 2489    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2490        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2491
 2492        for pane_handle in &self.panes {
 2493            let pane = pane_handle.read(cx);
 2494
 2495            for entry in pane.activation_history() {
 2496                history.insert(
 2497                    entry.entity_id,
 2498                    history
 2499                        .get(&entry.entity_id)
 2500                        .cloned()
 2501                        .unwrap_or(0)
 2502                        .max(entry.timestamp),
 2503                );
 2504            }
 2505        }
 2506
 2507        history
 2508    }
 2509
 2510    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2511        let mut recent_item: Option<Entity<T>> = None;
 2512        let mut recent_timestamp = 0;
 2513        for pane_handle in &self.panes {
 2514            let pane = pane_handle.read(cx);
 2515            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2516                pane.items().map(|item| (item.item_id(), item)).collect();
 2517            for entry in pane.activation_history() {
 2518                if entry.timestamp > recent_timestamp
 2519                    && let Some(&item) = item_map.get(&entry.entity_id)
 2520                    && let Some(typed_item) = item.act_as::<T>(cx)
 2521                {
 2522                    recent_timestamp = entry.timestamp;
 2523                    recent_item = Some(typed_item);
 2524                }
 2525            }
 2526        }
 2527        recent_item
 2528    }
 2529
 2530    pub fn recent_navigation_history_iter(
 2531        &self,
 2532        cx: &App,
 2533    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2534        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2535        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2536
 2537        for pane in &self.panes {
 2538            let pane = pane.read(cx);
 2539
 2540            pane.nav_history()
 2541                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2542                    if let Some(fs_path) = &fs_path {
 2543                        abs_paths_opened
 2544                            .entry(fs_path.clone())
 2545                            .or_default()
 2546                            .insert(project_path.clone());
 2547                    }
 2548                    let timestamp = entry.timestamp;
 2549                    match history.entry(project_path) {
 2550                        hash_map::Entry::Occupied(mut entry) => {
 2551                            let (_, old_timestamp) = entry.get();
 2552                            if &timestamp > old_timestamp {
 2553                                entry.insert((fs_path, timestamp));
 2554                            }
 2555                        }
 2556                        hash_map::Entry::Vacant(entry) => {
 2557                            entry.insert((fs_path, timestamp));
 2558                        }
 2559                    }
 2560                });
 2561
 2562            if let Some(item) = pane.active_item()
 2563                && let Some(project_path) = item.project_path(cx)
 2564            {
 2565                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2566
 2567                if let Some(fs_path) = &fs_path {
 2568                    abs_paths_opened
 2569                        .entry(fs_path.clone())
 2570                        .or_default()
 2571                        .insert(project_path.clone());
 2572                }
 2573
 2574                history.insert(project_path, (fs_path, std::usize::MAX));
 2575            }
 2576        }
 2577
 2578        history
 2579            .into_iter()
 2580            .sorted_by_key(|(_, (_, order))| *order)
 2581            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2582            .rev()
 2583            .filter(move |(history_path, abs_path)| {
 2584                let latest_project_path_opened = abs_path
 2585                    .as_ref()
 2586                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2587                    .and_then(|project_paths| {
 2588                        project_paths
 2589                            .iter()
 2590                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2591                    });
 2592
 2593                latest_project_path_opened.is_none_or(|path| path == history_path)
 2594            })
 2595    }
 2596
 2597    pub fn recent_navigation_history(
 2598        &self,
 2599        limit: Option<usize>,
 2600        cx: &App,
 2601    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2602        self.recent_navigation_history_iter(cx)
 2603            .take(limit.unwrap_or(usize::MAX))
 2604            .collect()
 2605    }
 2606
 2607    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2608        for pane in &self.panes {
 2609            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2610        }
 2611    }
 2612
 2613    fn navigate_history(
 2614        &mut self,
 2615        pane: WeakEntity<Pane>,
 2616        mode: NavigationMode,
 2617        window: &mut Window,
 2618        cx: &mut Context<Workspace>,
 2619    ) -> Task<Result<()>> {
 2620        self.navigate_history_impl(
 2621            pane,
 2622            mode,
 2623            window,
 2624            &mut |history, cx| history.pop(mode, cx),
 2625            cx,
 2626        )
 2627    }
 2628
 2629    fn navigate_tag_history(
 2630        &mut self,
 2631        pane: WeakEntity<Pane>,
 2632        mode: TagNavigationMode,
 2633        window: &mut Window,
 2634        cx: &mut Context<Workspace>,
 2635    ) -> Task<Result<()>> {
 2636        self.navigate_history_impl(
 2637            pane,
 2638            NavigationMode::Normal,
 2639            window,
 2640            &mut |history, _cx| history.pop_tag(mode),
 2641            cx,
 2642        )
 2643    }
 2644
 2645    fn navigate_history_impl(
 2646        &mut self,
 2647        pane: WeakEntity<Pane>,
 2648        mode: NavigationMode,
 2649        window: &mut Window,
 2650        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2651        cx: &mut Context<Workspace>,
 2652    ) -> Task<Result<()>> {
 2653        let to_load = if let Some(pane) = pane.upgrade() {
 2654            pane.update(cx, |pane, cx| {
 2655                window.focus(&pane.focus_handle(cx), cx);
 2656                loop {
 2657                    // Retrieve the weak item handle from the history.
 2658                    let entry = cb(pane.nav_history_mut(), cx)?;
 2659
 2660                    // If the item is still present in this pane, then activate it.
 2661                    if let Some(index) = entry
 2662                        .item
 2663                        .upgrade()
 2664                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2665                    {
 2666                        let prev_active_item_index = pane.active_item_index();
 2667                        pane.nav_history_mut().set_mode(mode);
 2668                        pane.activate_item(index, true, true, window, cx);
 2669                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2670
 2671                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2672                        if let Some(data) = entry.data {
 2673                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2674                        }
 2675
 2676                        if navigated {
 2677                            break None;
 2678                        }
 2679                    } else {
 2680                        // If the item is no longer present in this pane, then retrieve its
 2681                        // path info in order to reopen it.
 2682                        break pane
 2683                            .nav_history()
 2684                            .path_for_item(entry.item.id())
 2685                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2686                    }
 2687                }
 2688            })
 2689        } else {
 2690            None
 2691        };
 2692
 2693        if let Some((project_path, abs_path, entry)) = to_load {
 2694            // If the item was no longer present, then load it again from its previous path, first try the local path
 2695            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2696
 2697            cx.spawn_in(window, async move  |workspace, cx| {
 2698                let open_by_project_path = open_by_project_path.await;
 2699                let mut navigated = false;
 2700                match open_by_project_path
 2701                    .with_context(|| format!("Navigating to {project_path:?}"))
 2702                {
 2703                    Ok((project_entry_id, build_item)) => {
 2704                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2705                            pane.nav_history_mut().set_mode(mode);
 2706                            pane.active_item().map(|p| p.item_id())
 2707                        })?;
 2708
 2709                        pane.update_in(cx, |pane, window, cx| {
 2710                            let item = pane.open_item(
 2711                                project_entry_id,
 2712                                project_path,
 2713                                true,
 2714                                entry.is_preview,
 2715                                true,
 2716                                None,
 2717                                window, cx,
 2718                                build_item,
 2719                            );
 2720                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2721                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2722                            if let Some(data) = entry.data {
 2723                                navigated |= item.navigate(data, window, cx);
 2724                            }
 2725                        })?;
 2726                    }
 2727                    Err(open_by_project_path_e) => {
 2728                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2729                        // and its worktree is now dropped
 2730                        if let Some(abs_path) = abs_path {
 2731                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2732                                pane.nav_history_mut().set_mode(mode);
 2733                                pane.active_item().map(|p| p.item_id())
 2734                            })?;
 2735                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2736                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2737                            })?;
 2738                            match open_by_abs_path
 2739                                .await
 2740                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2741                            {
 2742                                Ok(item) => {
 2743                                    pane.update_in(cx, |pane, window, cx| {
 2744                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2745                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2746                                        if let Some(data) = entry.data {
 2747                                            navigated |= item.navigate(data, window, cx);
 2748                                        }
 2749                                    })?;
 2750                                }
 2751                                Err(open_by_abs_path_e) => {
 2752                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2753                                }
 2754                            }
 2755                        }
 2756                    }
 2757                }
 2758
 2759                if !navigated {
 2760                    workspace
 2761                        .update_in(cx, |workspace, window, cx| {
 2762                            Self::navigate_history(workspace, pane, mode, window, cx)
 2763                        })?
 2764                        .await?;
 2765                }
 2766
 2767                Ok(())
 2768            })
 2769        } else {
 2770            Task::ready(Ok(()))
 2771        }
 2772    }
 2773
 2774    pub fn go_back(
 2775        &mut self,
 2776        pane: WeakEntity<Pane>,
 2777        window: &mut Window,
 2778        cx: &mut Context<Workspace>,
 2779    ) -> Task<Result<()>> {
 2780        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2781    }
 2782
 2783    pub fn go_forward(
 2784        &mut self,
 2785        pane: WeakEntity<Pane>,
 2786        window: &mut Window,
 2787        cx: &mut Context<Workspace>,
 2788    ) -> Task<Result<()>> {
 2789        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2790    }
 2791
 2792    pub fn reopen_closed_item(
 2793        &mut self,
 2794        window: &mut Window,
 2795        cx: &mut Context<Workspace>,
 2796    ) -> Task<Result<()>> {
 2797        self.navigate_history(
 2798            self.active_pane().downgrade(),
 2799            NavigationMode::ReopeningClosedItem,
 2800            window,
 2801            cx,
 2802        )
 2803    }
 2804
 2805    pub fn client(&self) -> &Arc<Client> {
 2806        &self.app_state.client
 2807    }
 2808
 2809    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2810        self.titlebar_item = Some(item);
 2811        cx.notify();
 2812    }
 2813
 2814    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2815        self.on_prompt_for_new_path = Some(prompt)
 2816    }
 2817
 2818    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2819        self.on_prompt_for_open_path = Some(prompt)
 2820    }
 2821
 2822    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2823        self.terminal_provider = Some(Box::new(provider));
 2824    }
 2825
 2826    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2827        self.debugger_provider = Some(Arc::new(provider));
 2828    }
 2829
 2830    pub fn set_open_in_dev_container(&mut self, value: bool) {
 2831        self.open_in_dev_container = value;
 2832    }
 2833
 2834    pub fn open_in_dev_container(&self) -> bool {
 2835        self.open_in_dev_container
 2836    }
 2837
 2838    pub fn set_dev_container_task(&mut self, task: Task<Result<()>>) {
 2839        self._dev_container_task = Some(task);
 2840    }
 2841
 2842    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2843        self.debugger_provider.clone()
 2844    }
 2845
 2846    pub fn prompt_for_open_path(
 2847        &mut self,
 2848        path_prompt_options: PathPromptOptions,
 2849        lister: DirectoryLister,
 2850        window: &mut Window,
 2851        cx: &mut Context<Self>,
 2852    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2853        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2854            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2855            let rx = prompt(self, lister, window, cx);
 2856            self.on_prompt_for_open_path = Some(prompt);
 2857            rx
 2858        } else {
 2859            let (tx, rx) = oneshot::channel();
 2860            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2861
 2862            cx.spawn_in(window, async move |workspace, cx| {
 2863                let Ok(result) = abs_path.await else {
 2864                    return Ok(());
 2865                };
 2866
 2867                match result {
 2868                    Ok(result) => {
 2869                        tx.send(result).ok();
 2870                    }
 2871                    Err(err) => {
 2872                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2873                            workspace.show_portal_error(err.to_string(), cx);
 2874                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2875                            let rx = prompt(workspace, lister, window, cx);
 2876                            workspace.on_prompt_for_open_path = Some(prompt);
 2877                            rx
 2878                        })?;
 2879                        if let Ok(path) = rx.await {
 2880                            tx.send(path).ok();
 2881                        }
 2882                    }
 2883                };
 2884                anyhow::Ok(())
 2885            })
 2886            .detach();
 2887
 2888            rx
 2889        }
 2890    }
 2891
 2892    pub fn prompt_for_new_path(
 2893        &mut self,
 2894        lister: DirectoryLister,
 2895        suggested_name: Option<String>,
 2896        window: &mut Window,
 2897        cx: &mut Context<Self>,
 2898    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2899        if self.project.read(cx).is_via_collab()
 2900            || self.project.read(cx).is_via_remote_server()
 2901            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2902        {
 2903            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2904            let rx = prompt(self, lister, suggested_name, window, cx);
 2905            self.on_prompt_for_new_path = Some(prompt);
 2906            return rx;
 2907        }
 2908
 2909        let (tx, rx) = oneshot::channel();
 2910        cx.spawn_in(window, async move |workspace, cx| {
 2911            let abs_path = workspace.update(cx, |workspace, cx| {
 2912                let relative_to = workspace
 2913                    .most_recent_active_path(cx)
 2914                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2915                    .or_else(|| {
 2916                        let project = workspace.project.read(cx);
 2917                        project.visible_worktrees(cx).find_map(|worktree| {
 2918                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2919                        })
 2920                    })
 2921                    .or_else(std::env::home_dir)
 2922                    .unwrap_or_else(|| PathBuf::from(""));
 2923                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2924            })?;
 2925            let abs_path = match abs_path.await? {
 2926                Ok(path) => path,
 2927                Err(err) => {
 2928                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2929                        workspace.show_portal_error(err.to_string(), cx);
 2930
 2931                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2932                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2933                        workspace.on_prompt_for_new_path = Some(prompt);
 2934                        rx
 2935                    })?;
 2936                    if let Ok(path) = rx.await {
 2937                        tx.send(path).ok();
 2938                    }
 2939                    return anyhow::Ok(());
 2940                }
 2941            };
 2942
 2943            tx.send(abs_path.map(|path| vec![path])).ok();
 2944            anyhow::Ok(())
 2945        })
 2946        .detach();
 2947
 2948        rx
 2949    }
 2950
 2951    pub fn titlebar_item(&self) -> Option<AnyView> {
 2952        self.titlebar_item.clone()
 2953    }
 2954
 2955    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2956    /// When set, git-related operations should use this worktree instead of deriving
 2957    /// the active worktree from the focused file.
 2958    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2959        self.active_worktree_override
 2960    }
 2961
 2962    pub fn set_active_worktree_override(
 2963        &mut self,
 2964        worktree_id: Option<WorktreeId>,
 2965        cx: &mut Context<Self>,
 2966    ) {
 2967        self.active_worktree_override = worktree_id;
 2968        cx.notify();
 2969    }
 2970
 2971    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2972        self.active_worktree_override = None;
 2973        cx.notify();
 2974    }
 2975
 2976    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2977    ///
 2978    /// If the given workspace has a local project, then it will be passed
 2979    /// to the callback. Otherwise, a new empty window will be created.
 2980    pub fn with_local_workspace<T, F>(
 2981        &mut self,
 2982        window: &mut Window,
 2983        cx: &mut Context<Self>,
 2984        callback: F,
 2985    ) -> Task<Result<T>>
 2986    where
 2987        T: 'static,
 2988        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2989    {
 2990        if self.project.read(cx).is_local() {
 2991            Task::ready(Ok(callback(self, window, cx)))
 2992        } else {
 2993            let env = self.project.read(cx).cli_environment(cx);
 2994            let task = Self::new_local(
 2995                Vec::new(),
 2996                self.app_state.clone(),
 2997                None,
 2998                env,
 2999                None,
 3000                OpenMode::Activate,
 3001                cx,
 3002            );
 3003            cx.spawn_in(window, async move |_vh, cx| {
 3004                let OpenResult {
 3005                    window: multi_workspace_window,
 3006                    ..
 3007                } = task.await?;
 3008                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3009                    let workspace = multi_workspace.workspace().clone();
 3010                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3011                })
 3012            })
 3013        }
 3014    }
 3015
 3016    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 3017    ///
 3018    /// If the given workspace has a local project, then it will be passed
 3019    /// to the callback. Otherwise, a new empty window will be created.
 3020    pub fn with_local_or_wsl_workspace<T, F>(
 3021        &mut self,
 3022        window: &mut Window,
 3023        cx: &mut Context<Self>,
 3024        callback: F,
 3025    ) -> Task<Result<T>>
 3026    where
 3027        T: 'static,
 3028        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 3029    {
 3030        let project = self.project.read(cx);
 3031        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 3032            Task::ready(Ok(callback(self, window, cx)))
 3033        } else {
 3034            let env = self.project.read(cx).cli_environment(cx);
 3035            let task = Self::new_local(
 3036                Vec::new(),
 3037                self.app_state.clone(),
 3038                None,
 3039                env,
 3040                None,
 3041                OpenMode::Activate,
 3042                cx,
 3043            );
 3044            cx.spawn_in(window, async move |_vh, cx| {
 3045                let OpenResult {
 3046                    window: multi_workspace_window,
 3047                    ..
 3048                } = task.await?;
 3049                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3050                    let workspace = multi_workspace.workspace().clone();
 3051                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3052                })
 3053            })
 3054        }
 3055    }
 3056
 3057    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3058        self.project.read(cx).worktrees(cx)
 3059    }
 3060
 3061    pub fn visible_worktrees<'a>(
 3062        &self,
 3063        cx: &'a App,
 3064    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3065        self.project.read(cx).visible_worktrees(cx)
 3066    }
 3067
 3068    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 3069        let futures = self
 3070            .worktrees(cx)
 3071            .filter_map(|worktree| worktree.read(cx).as_local())
 3072            .map(|worktree| worktree.scan_complete())
 3073            .collect::<Vec<_>>();
 3074        async move {
 3075            for future in futures {
 3076                future.await;
 3077            }
 3078        }
 3079    }
 3080
 3081    pub fn close_global(cx: &mut App) {
 3082        cx.defer(|cx| {
 3083            cx.windows().iter().find(|window| {
 3084                window
 3085                    .update(cx, |_, window, _| {
 3086                        if window.is_window_active() {
 3087                            //This can only get called when the window's project connection has been lost
 3088                            //so we don't need to prompt the user for anything and instead just close the window
 3089                            window.remove_window();
 3090                            true
 3091                        } else {
 3092                            false
 3093                        }
 3094                    })
 3095                    .unwrap_or(false)
 3096            });
 3097        });
 3098    }
 3099
 3100    pub fn move_focused_panel_to_next_position(
 3101        &mut self,
 3102        _: &MoveFocusedPanelToNextPosition,
 3103        window: &mut Window,
 3104        cx: &mut Context<Self>,
 3105    ) {
 3106        let docks = self.all_docks();
 3107        let active_dock = docks
 3108            .into_iter()
 3109            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3110
 3111        if let Some(dock) = active_dock {
 3112            dock.update(cx, |dock, cx| {
 3113                let active_panel = dock
 3114                    .active_panel()
 3115                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3116
 3117                if let Some(panel) = active_panel {
 3118                    panel.move_to_next_position(window, cx);
 3119                }
 3120            })
 3121        }
 3122    }
 3123
 3124    pub fn prepare_to_close(
 3125        &mut self,
 3126        close_intent: CloseIntent,
 3127        window: &mut Window,
 3128        cx: &mut Context<Self>,
 3129    ) -> Task<Result<bool>> {
 3130        let active_call = self.active_global_call();
 3131
 3132        cx.spawn_in(window, async move |this, cx| {
 3133            this.update(cx, |this, _| {
 3134                if close_intent == CloseIntent::CloseWindow {
 3135                    this.removing = true;
 3136                }
 3137            })?;
 3138
 3139            let workspace_count = cx.update(|_window, cx| {
 3140                cx.windows()
 3141                    .iter()
 3142                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3143                    .count()
 3144            })?;
 3145
 3146            #[cfg(target_os = "macos")]
 3147            let save_last_workspace = false;
 3148
 3149            // On Linux and Windows, closing the last window should restore the last workspace.
 3150            #[cfg(not(target_os = "macos"))]
 3151            let save_last_workspace = {
 3152                let remaining_workspaces = cx.update(|_window, cx| {
 3153                    cx.windows()
 3154                        .iter()
 3155                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3156                        .filter_map(|multi_workspace| {
 3157                            multi_workspace
 3158                                .update(cx, |multi_workspace, _, cx| {
 3159                                    multi_workspace.workspace().read(cx).removing
 3160                                })
 3161                                .ok()
 3162                        })
 3163                        .filter(|removing| !removing)
 3164                        .count()
 3165                })?;
 3166
 3167                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3168            };
 3169
 3170            if let Some(active_call) = active_call
 3171                && workspace_count == 1
 3172                && cx
 3173                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3174                    .unwrap_or(false)
 3175            {
 3176                if close_intent == CloseIntent::CloseWindow {
 3177                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3178                    let answer = cx.update(|window, cx| {
 3179                        window.prompt(
 3180                            PromptLevel::Warning,
 3181                            "Do you want to leave the current call?",
 3182                            None,
 3183                            &["Close window and hang up", "Cancel"],
 3184                            cx,
 3185                        )
 3186                    })?;
 3187
 3188                    if answer.await.log_err() == Some(1) {
 3189                        return anyhow::Ok(false);
 3190                    } else {
 3191                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3192                            task.await.log_err();
 3193                        }
 3194                    }
 3195                }
 3196                if close_intent == CloseIntent::ReplaceWindow {
 3197                    _ = cx.update(|_window, cx| {
 3198                        let multi_workspace = cx
 3199                            .windows()
 3200                            .iter()
 3201                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3202                            .next()
 3203                            .unwrap();
 3204                        let project = multi_workspace
 3205                            .read(cx)?
 3206                            .workspace()
 3207                            .read(cx)
 3208                            .project
 3209                            .clone();
 3210                        if project.read(cx).is_shared() {
 3211                            active_call.0.unshare_project(project, cx)?;
 3212                        }
 3213                        Ok::<_, anyhow::Error>(())
 3214                    });
 3215                }
 3216            }
 3217
 3218            let save_result = this
 3219                .update_in(cx, |this, window, cx| {
 3220                    this.save_all_internal(SaveIntent::Close, window, cx)
 3221                })?
 3222                .await;
 3223
 3224            // If we're not quitting, but closing, we remove the workspace from
 3225            // the current session.
 3226            if close_intent != CloseIntent::Quit
 3227                && !save_last_workspace
 3228                && save_result.as_ref().is_ok_and(|&res| res)
 3229            {
 3230                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3231                    .await;
 3232            }
 3233
 3234            save_result
 3235        })
 3236    }
 3237
 3238    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3239        self.save_all_internal(
 3240            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3241            window,
 3242            cx,
 3243        )
 3244        .detach_and_log_err(cx);
 3245    }
 3246
 3247    fn send_keystrokes(
 3248        &mut self,
 3249        action: &SendKeystrokes,
 3250        window: &mut Window,
 3251        cx: &mut Context<Self>,
 3252    ) {
 3253        let keystrokes: Vec<Keystroke> = action
 3254            .0
 3255            .split(' ')
 3256            .flat_map(|k| Keystroke::parse(k).log_err())
 3257            .map(|k| {
 3258                cx.keyboard_mapper()
 3259                    .map_key_equivalent(k, false)
 3260                    .inner()
 3261                    .clone()
 3262            })
 3263            .collect();
 3264        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3265    }
 3266
 3267    pub fn send_keystrokes_impl(
 3268        &mut self,
 3269        keystrokes: Vec<Keystroke>,
 3270        window: &mut Window,
 3271        cx: &mut Context<Self>,
 3272    ) -> Shared<Task<()>> {
 3273        let mut state = self.dispatching_keystrokes.borrow_mut();
 3274        if !state.dispatched.insert(keystrokes.clone()) {
 3275            cx.propagate();
 3276            return state.task.clone().unwrap();
 3277        }
 3278
 3279        state.queue.extend(keystrokes);
 3280
 3281        let keystrokes = self.dispatching_keystrokes.clone();
 3282        if state.task.is_none() {
 3283            state.task = Some(
 3284                window
 3285                    .spawn(cx, async move |cx| {
 3286                        // limit to 100 keystrokes to avoid infinite recursion.
 3287                        for _ in 0..100 {
 3288                            let keystroke = {
 3289                                let mut state = keystrokes.borrow_mut();
 3290                                let Some(keystroke) = state.queue.pop_front() else {
 3291                                    state.dispatched.clear();
 3292                                    state.task.take();
 3293                                    return;
 3294                                };
 3295                                keystroke
 3296                            };
 3297                            cx.update(|window, cx| {
 3298                                let focused = window.focused(cx);
 3299                                window.dispatch_keystroke(keystroke.clone(), cx);
 3300                                if window.focused(cx) != focused {
 3301                                    // dispatch_keystroke may cause the focus to change.
 3302                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3303                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3304                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3305                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3306                                    // )
 3307                                    window.draw(cx).clear();
 3308                                }
 3309                            })
 3310                            .ok();
 3311
 3312                            // Yield between synthetic keystrokes so deferred focus and
 3313                            // other effects can settle before dispatching the next key.
 3314                            yield_now().await;
 3315                        }
 3316
 3317                        *keystrokes.borrow_mut() = Default::default();
 3318                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3319                    })
 3320                    .shared(),
 3321            );
 3322        }
 3323        state.task.clone().unwrap()
 3324    }
 3325
 3326    fn save_all_internal(
 3327        &mut self,
 3328        mut save_intent: SaveIntent,
 3329        window: &mut Window,
 3330        cx: &mut Context<Self>,
 3331    ) -> Task<Result<bool>> {
 3332        if self.project.read(cx).is_disconnected(cx) {
 3333            return Task::ready(Ok(true));
 3334        }
 3335        let dirty_items = self
 3336            .panes
 3337            .iter()
 3338            .flat_map(|pane| {
 3339                pane.read(cx).items().filter_map(|item| {
 3340                    if item.is_dirty(cx) {
 3341                        item.tab_content_text(0, cx);
 3342                        Some((pane.downgrade(), item.boxed_clone()))
 3343                    } else {
 3344                        None
 3345                    }
 3346                })
 3347            })
 3348            .collect::<Vec<_>>();
 3349
 3350        let project = self.project.clone();
 3351        cx.spawn_in(window, async move |workspace, cx| {
 3352            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3353                let (serialize_tasks, remaining_dirty_items) =
 3354                    workspace.update_in(cx, |workspace, window, cx| {
 3355                        let mut remaining_dirty_items = Vec::new();
 3356                        let mut serialize_tasks = Vec::new();
 3357                        for (pane, item) in dirty_items {
 3358                            if let Some(task) = item
 3359                                .to_serializable_item_handle(cx)
 3360                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3361                            {
 3362                                serialize_tasks.push(task);
 3363                            } else {
 3364                                remaining_dirty_items.push((pane, item));
 3365                            }
 3366                        }
 3367                        (serialize_tasks, remaining_dirty_items)
 3368                    })?;
 3369
 3370                futures::future::try_join_all(serialize_tasks).await?;
 3371
 3372                if !remaining_dirty_items.is_empty() {
 3373                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3374                }
 3375
 3376                if remaining_dirty_items.len() > 1 {
 3377                    let answer = workspace.update_in(cx, |_, window, cx| {
 3378                        let detail = Pane::file_names_for_prompt(
 3379                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3380                            cx,
 3381                        );
 3382                        window.prompt(
 3383                            PromptLevel::Warning,
 3384                            "Do you want to save all changes in the following files?",
 3385                            Some(&detail),
 3386                            &["Save all", "Discard all", "Cancel"],
 3387                            cx,
 3388                        )
 3389                    })?;
 3390                    match answer.await.log_err() {
 3391                        Some(0) => save_intent = SaveIntent::SaveAll,
 3392                        Some(1) => save_intent = SaveIntent::Skip,
 3393                        Some(2) => return Ok(false),
 3394                        _ => {}
 3395                    }
 3396                }
 3397
 3398                remaining_dirty_items
 3399            } else {
 3400                dirty_items
 3401            };
 3402
 3403            for (pane, item) in dirty_items {
 3404                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3405                    (
 3406                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3407                        item.project_entry_ids(cx),
 3408                    )
 3409                })?;
 3410                if (singleton || !project_entry_ids.is_empty())
 3411                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3412                {
 3413                    return Ok(false);
 3414                }
 3415            }
 3416            Ok(true)
 3417        })
 3418    }
 3419
 3420    pub fn open_workspace_for_paths(
 3421        &mut self,
 3422        // replace_current_window: bool,
 3423        mut open_mode: OpenMode,
 3424        paths: Vec<PathBuf>,
 3425        window: &mut Window,
 3426        cx: &mut Context<Self>,
 3427    ) -> Task<Result<Entity<Workspace>>> {
 3428        let requesting_window = window.window_handle().downcast::<MultiWorkspace>();
 3429        let is_remote = self.project.read(cx).is_via_collab();
 3430        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3431        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3432
 3433        let workspace_is_empty = !is_remote && !has_worktree && !has_dirty_items;
 3434        if workspace_is_empty {
 3435            open_mode = OpenMode::Activate;
 3436        }
 3437
 3438        let app_state = self.app_state.clone();
 3439
 3440        cx.spawn(async move |_, cx| {
 3441            let OpenResult { workspace, .. } = cx
 3442                .update(|cx| {
 3443                    open_paths(
 3444                        &paths,
 3445                        app_state,
 3446                        OpenOptions {
 3447                            requesting_window,
 3448                            open_mode,
 3449                            ..Default::default()
 3450                        },
 3451                        cx,
 3452                    )
 3453                })
 3454                .await?;
 3455            Ok(workspace)
 3456        })
 3457    }
 3458
 3459    #[allow(clippy::type_complexity)]
 3460    pub fn open_paths(
 3461        &mut self,
 3462        mut abs_paths: Vec<PathBuf>,
 3463        options: OpenOptions,
 3464        pane: Option<WeakEntity<Pane>>,
 3465        window: &mut Window,
 3466        cx: &mut Context<Self>,
 3467    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3468        let fs = self.app_state.fs.clone();
 3469
 3470        let caller_ordered_abs_paths = abs_paths.clone();
 3471
 3472        // Sort the paths to ensure we add worktrees for parents before their children.
 3473        abs_paths.sort_unstable();
 3474        cx.spawn_in(window, async move |this, cx| {
 3475            let mut tasks = Vec::with_capacity(abs_paths.len());
 3476
 3477            for abs_path in &abs_paths {
 3478                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3479                    OpenVisible::All => Some(true),
 3480                    OpenVisible::None => Some(false),
 3481                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3482                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3483                        Some(None) => Some(true),
 3484                        None => None,
 3485                    },
 3486                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3487                        Some(Some(metadata)) => Some(metadata.is_dir),
 3488                        Some(None) => Some(false),
 3489                        None => None,
 3490                    },
 3491                };
 3492                let project_path = match visible {
 3493                    Some(visible) => match this
 3494                        .update(cx, |this, cx| {
 3495                            Workspace::project_path_for_path(
 3496                                this.project.clone(),
 3497                                abs_path,
 3498                                visible,
 3499                                cx,
 3500                            )
 3501                        })
 3502                        .log_err()
 3503                    {
 3504                        Some(project_path) => project_path.await.log_err(),
 3505                        None => None,
 3506                    },
 3507                    None => None,
 3508                };
 3509
 3510                let this = this.clone();
 3511                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3512                let fs = fs.clone();
 3513                let pane = pane.clone();
 3514                let task = cx.spawn(async move |cx| {
 3515                    let (_worktree, project_path) = project_path?;
 3516                    if fs.is_dir(&abs_path).await {
 3517                        // Opening a directory should not race to update the active entry.
 3518                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3519                        None
 3520                    } else {
 3521                        Some(
 3522                            this.update_in(cx, |this, window, cx| {
 3523                                this.open_path(
 3524                                    project_path,
 3525                                    pane,
 3526                                    options.focus.unwrap_or(true),
 3527                                    window,
 3528                                    cx,
 3529                                )
 3530                            })
 3531                            .ok()?
 3532                            .await,
 3533                        )
 3534                    }
 3535                });
 3536                tasks.push(task);
 3537            }
 3538
 3539            let results = futures::future::join_all(tasks).await;
 3540
 3541            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3542            let mut winner: Option<(PathBuf, bool)> = None;
 3543            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3544                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3545                    if !metadata.is_dir {
 3546                        winner = Some((abs_path, false));
 3547                        break;
 3548                    }
 3549                    if winner.is_none() {
 3550                        winner = Some((abs_path, true));
 3551                    }
 3552                } else if winner.is_none() {
 3553                    winner = Some((abs_path, false));
 3554                }
 3555            }
 3556
 3557            // Compute the winner entry id on the foreground thread and emit once, after all
 3558            // paths finish opening. This avoids races between concurrently-opening paths
 3559            // (directories in particular) and makes the resulting project panel selection
 3560            // deterministic.
 3561            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3562                'emit_winner: {
 3563                    let winner_abs_path: Arc<Path> =
 3564                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3565
 3566                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3567                        OpenVisible::All => true,
 3568                        OpenVisible::None => false,
 3569                        OpenVisible::OnlyFiles => !winner_is_dir,
 3570                        OpenVisible::OnlyDirectories => winner_is_dir,
 3571                    };
 3572
 3573                    let Some(worktree_task) = this
 3574                        .update(cx, |workspace, cx| {
 3575                            workspace.project.update(cx, |project, cx| {
 3576                                project.find_or_create_worktree(
 3577                                    winner_abs_path.as_ref(),
 3578                                    visible,
 3579                                    cx,
 3580                                )
 3581                            })
 3582                        })
 3583                        .ok()
 3584                    else {
 3585                        break 'emit_winner;
 3586                    };
 3587
 3588                    let Ok((worktree, _)) = worktree_task.await else {
 3589                        break 'emit_winner;
 3590                    };
 3591
 3592                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3593                        let worktree = worktree.read(cx);
 3594                        let worktree_abs_path = worktree.abs_path();
 3595                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3596                            worktree.root_entry()
 3597                        } else {
 3598                            winner_abs_path
 3599                                .strip_prefix(worktree_abs_path.as_ref())
 3600                                .ok()
 3601                                .and_then(|relative_path| {
 3602                                    let relative_path =
 3603                                        RelPath::new(relative_path, PathStyle::local())
 3604                                            .log_err()?;
 3605                                    worktree.entry_for_path(&relative_path)
 3606                                })
 3607                        }?;
 3608                        Some(entry.id)
 3609                    }) else {
 3610                        break 'emit_winner;
 3611                    };
 3612
 3613                    this.update(cx, |workspace, cx| {
 3614                        workspace.project.update(cx, |_, cx| {
 3615                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3616                        });
 3617                    })
 3618                    .ok();
 3619                }
 3620            }
 3621
 3622            results
 3623        })
 3624    }
 3625
 3626    pub fn open_resolved_path(
 3627        &mut self,
 3628        path: ResolvedPath,
 3629        window: &mut Window,
 3630        cx: &mut Context<Self>,
 3631    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3632        match path {
 3633            ResolvedPath::ProjectPath { project_path, .. } => {
 3634                self.open_path(project_path, None, true, window, cx)
 3635            }
 3636            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3637                PathBuf::from(path),
 3638                OpenOptions {
 3639                    visible: Some(OpenVisible::None),
 3640                    ..Default::default()
 3641                },
 3642                window,
 3643                cx,
 3644            ),
 3645        }
 3646    }
 3647
 3648    pub fn absolute_path_of_worktree(
 3649        &self,
 3650        worktree_id: WorktreeId,
 3651        cx: &mut Context<Self>,
 3652    ) -> Option<PathBuf> {
 3653        self.project
 3654            .read(cx)
 3655            .worktree_for_id(worktree_id, cx)
 3656            // TODO: use `abs_path` or `root_dir`
 3657            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3658    }
 3659
 3660    pub fn add_folder_to_project(
 3661        &mut self,
 3662        _: &AddFolderToProject,
 3663        window: &mut Window,
 3664        cx: &mut Context<Self>,
 3665    ) {
 3666        let project = self.project.read(cx);
 3667        if project.is_via_collab() {
 3668            self.show_error(
 3669                &anyhow!("You cannot add folders to someone else's project"),
 3670                cx,
 3671            );
 3672            return;
 3673        }
 3674        let paths = self.prompt_for_open_path(
 3675            PathPromptOptions {
 3676                files: false,
 3677                directories: true,
 3678                multiple: true,
 3679                prompt: None,
 3680            },
 3681            DirectoryLister::Project(self.project.clone()),
 3682            window,
 3683            cx,
 3684        );
 3685        cx.spawn_in(window, async move |this, cx| {
 3686            if let Some(paths) = paths.await.log_err().flatten() {
 3687                let results = this
 3688                    .update_in(cx, |this, window, cx| {
 3689                        this.open_paths(
 3690                            paths,
 3691                            OpenOptions {
 3692                                visible: Some(OpenVisible::All),
 3693                                ..Default::default()
 3694                            },
 3695                            None,
 3696                            window,
 3697                            cx,
 3698                        )
 3699                    })?
 3700                    .await;
 3701                for result in results.into_iter().flatten() {
 3702                    result.log_err();
 3703                }
 3704            }
 3705            anyhow::Ok(())
 3706        })
 3707        .detach_and_log_err(cx);
 3708    }
 3709
 3710    pub fn project_path_for_path(
 3711        project: Entity<Project>,
 3712        abs_path: &Path,
 3713        visible: bool,
 3714        cx: &mut App,
 3715    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3716        let entry = project.update(cx, |project, cx| {
 3717            project.find_or_create_worktree(abs_path, visible, cx)
 3718        });
 3719        cx.spawn(async move |cx| {
 3720            let (worktree, path) = entry.await?;
 3721            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3722            Ok((worktree, ProjectPath { worktree_id, path }))
 3723        })
 3724    }
 3725
 3726    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3727        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3728    }
 3729
 3730    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3731        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3732    }
 3733
 3734    pub fn items_of_type<'a, T: Item>(
 3735        &'a self,
 3736        cx: &'a App,
 3737    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3738        self.panes
 3739            .iter()
 3740            .flat_map(|pane| pane.read(cx).items_of_type())
 3741    }
 3742
 3743    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3744        self.active_pane().read(cx).active_item()
 3745    }
 3746
 3747    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3748        let item = self.active_item(cx)?;
 3749        item.to_any_view().downcast::<I>().ok()
 3750    }
 3751
 3752    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3753        self.active_item(cx).and_then(|item| item.project_path(cx))
 3754    }
 3755
 3756    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3757        self.recent_navigation_history_iter(cx)
 3758            .filter_map(|(path, abs_path)| {
 3759                let worktree = self
 3760                    .project
 3761                    .read(cx)
 3762                    .worktree_for_id(path.worktree_id, cx)?;
 3763                if worktree.read(cx).is_visible() {
 3764                    abs_path
 3765                } else {
 3766                    None
 3767                }
 3768            })
 3769            .next()
 3770    }
 3771
 3772    pub fn save_active_item(
 3773        &mut self,
 3774        save_intent: SaveIntent,
 3775        window: &mut Window,
 3776        cx: &mut App,
 3777    ) -> Task<Result<()>> {
 3778        let project = self.project.clone();
 3779        let pane = self.active_pane();
 3780        let item = pane.read(cx).active_item();
 3781        let pane = pane.downgrade();
 3782
 3783        window.spawn(cx, async move |cx| {
 3784            if let Some(item) = item {
 3785                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3786                    .await
 3787                    .map(|_| ())
 3788            } else {
 3789                Ok(())
 3790            }
 3791        })
 3792    }
 3793
 3794    pub fn close_inactive_items_and_panes(
 3795        &mut self,
 3796        action: &CloseInactiveTabsAndPanes,
 3797        window: &mut Window,
 3798        cx: &mut Context<Self>,
 3799    ) {
 3800        if let Some(task) = self.close_all_internal(
 3801            true,
 3802            action.save_intent.unwrap_or(SaveIntent::Close),
 3803            window,
 3804            cx,
 3805        ) {
 3806            task.detach_and_log_err(cx)
 3807        }
 3808    }
 3809
 3810    pub fn close_all_items_and_panes(
 3811        &mut self,
 3812        action: &CloseAllItemsAndPanes,
 3813        window: &mut Window,
 3814        cx: &mut Context<Self>,
 3815    ) {
 3816        if let Some(task) = self.close_all_internal(
 3817            false,
 3818            action.save_intent.unwrap_or(SaveIntent::Close),
 3819            window,
 3820            cx,
 3821        ) {
 3822            task.detach_and_log_err(cx)
 3823        }
 3824    }
 3825
 3826    /// Closes the active item across all panes.
 3827    pub fn close_item_in_all_panes(
 3828        &mut self,
 3829        action: &CloseItemInAllPanes,
 3830        window: &mut Window,
 3831        cx: &mut Context<Self>,
 3832    ) {
 3833        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3834            return;
 3835        };
 3836
 3837        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3838        let close_pinned = action.close_pinned;
 3839
 3840        if let Some(project_path) = active_item.project_path(cx) {
 3841            self.close_items_with_project_path(
 3842                &project_path,
 3843                save_intent,
 3844                close_pinned,
 3845                window,
 3846                cx,
 3847            );
 3848        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3849            let item_id = active_item.item_id();
 3850            self.active_pane().update(cx, |pane, cx| {
 3851                pane.close_item_by_id(item_id, save_intent, window, cx)
 3852                    .detach_and_log_err(cx);
 3853            });
 3854        }
 3855    }
 3856
 3857    /// Closes all items with the given project path across all panes.
 3858    pub fn close_items_with_project_path(
 3859        &mut self,
 3860        project_path: &ProjectPath,
 3861        save_intent: SaveIntent,
 3862        close_pinned: bool,
 3863        window: &mut Window,
 3864        cx: &mut Context<Self>,
 3865    ) {
 3866        let panes = self.panes().to_vec();
 3867        for pane in panes {
 3868            pane.update(cx, |pane, cx| {
 3869                pane.close_items_for_project_path(
 3870                    project_path,
 3871                    save_intent,
 3872                    close_pinned,
 3873                    window,
 3874                    cx,
 3875                )
 3876                .detach_and_log_err(cx);
 3877            });
 3878        }
 3879    }
 3880
 3881    fn close_all_internal(
 3882        &mut self,
 3883        retain_active_pane: bool,
 3884        save_intent: SaveIntent,
 3885        window: &mut Window,
 3886        cx: &mut Context<Self>,
 3887    ) -> Option<Task<Result<()>>> {
 3888        let current_pane = self.active_pane();
 3889
 3890        let mut tasks = Vec::new();
 3891
 3892        if retain_active_pane {
 3893            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3894                pane.close_other_items(
 3895                    &CloseOtherItems {
 3896                        save_intent: None,
 3897                        close_pinned: false,
 3898                    },
 3899                    None,
 3900                    window,
 3901                    cx,
 3902                )
 3903            });
 3904
 3905            tasks.push(current_pane_close);
 3906        }
 3907
 3908        for pane in self.panes() {
 3909            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3910                continue;
 3911            }
 3912
 3913            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3914                pane.close_all_items(
 3915                    &CloseAllItems {
 3916                        save_intent: Some(save_intent),
 3917                        close_pinned: false,
 3918                    },
 3919                    window,
 3920                    cx,
 3921                )
 3922            });
 3923
 3924            tasks.push(close_pane_items)
 3925        }
 3926
 3927        if tasks.is_empty() {
 3928            None
 3929        } else {
 3930            Some(cx.spawn_in(window, async move |_, _| {
 3931                for task in tasks {
 3932                    task.await?
 3933                }
 3934                Ok(())
 3935            }))
 3936        }
 3937    }
 3938
 3939    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3940        self.dock_at_position(position).read(cx).is_open()
 3941    }
 3942
 3943    pub fn toggle_dock(
 3944        &mut self,
 3945        dock_side: DockPosition,
 3946        window: &mut Window,
 3947        cx: &mut Context<Self>,
 3948    ) {
 3949        let mut focus_center = false;
 3950        let mut reveal_dock = false;
 3951
 3952        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3953        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3954
 3955        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3956            telemetry::event!(
 3957                "Panel Button Clicked",
 3958                name = panel.persistent_name(),
 3959                toggle_state = !was_visible
 3960            );
 3961        }
 3962        if was_visible {
 3963            self.save_open_dock_positions(cx);
 3964        }
 3965
 3966        let dock = self.dock_at_position(dock_side);
 3967        dock.update(cx, |dock, cx| {
 3968            dock.set_open(!was_visible, window, cx);
 3969
 3970            if dock.active_panel().is_none() {
 3971                let Some(panel_ix) = dock
 3972                    .first_enabled_panel_idx(cx)
 3973                    .log_with_level(log::Level::Info)
 3974                else {
 3975                    return;
 3976                };
 3977                dock.activate_panel(panel_ix, window, cx);
 3978            }
 3979
 3980            if let Some(active_panel) = dock.active_panel() {
 3981                if was_visible {
 3982                    if active_panel
 3983                        .panel_focus_handle(cx)
 3984                        .contains_focused(window, cx)
 3985                    {
 3986                        focus_center = true;
 3987                    }
 3988                } else {
 3989                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3990                    window.focus(focus_handle, cx);
 3991                    reveal_dock = true;
 3992                }
 3993            }
 3994        });
 3995
 3996        if reveal_dock {
 3997            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3998        }
 3999
 4000        if focus_center {
 4001            self.active_pane
 4002                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4003        }
 4004
 4005        cx.notify();
 4006        self.serialize_workspace(window, cx);
 4007    }
 4008
 4009    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 4010        self.all_docks().into_iter().find(|&dock| {
 4011            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 4012        })
 4013    }
 4014
 4015    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 4016        if let Some(dock) = self.active_dock(window, cx).cloned() {
 4017            self.save_open_dock_positions(cx);
 4018            dock.update(cx, |dock, cx| {
 4019                dock.set_open(false, window, cx);
 4020            });
 4021            return true;
 4022        }
 4023        false
 4024    }
 4025
 4026    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4027        self.save_open_dock_positions(cx);
 4028        for dock in self.all_docks() {
 4029            dock.update(cx, |dock, cx| {
 4030                dock.set_open(false, window, cx);
 4031            });
 4032        }
 4033
 4034        cx.focus_self(window);
 4035        cx.notify();
 4036        self.serialize_workspace(window, cx);
 4037    }
 4038
 4039    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 4040        self.all_docks()
 4041            .into_iter()
 4042            .filter_map(|dock| {
 4043                let dock_ref = dock.read(cx);
 4044                if dock_ref.is_open() {
 4045                    Some(dock_ref.position())
 4046                } else {
 4047                    None
 4048                }
 4049            })
 4050            .collect()
 4051    }
 4052
 4053    /// Saves the positions of currently open docks.
 4054    ///
 4055    /// Updates `last_open_dock_positions` with positions of all currently open
 4056    /// docks, to later be restored by the 'Toggle All Docks' action.
 4057    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 4058        let open_dock_positions = self.get_open_dock_positions(cx);
 4059        if !open_dock_positions.is_empty() {
 4060            self.last_open_dock_positions = open_dock_positions;
 4061        }
 4062    }
 4063
 4064    /// Toggles all docks between open and closed states.
 4065    ///
 4066    /// If any docks are open, closes all and remembers their positions. If all
 4067    /// docks are closed, restores the last remembered dock configuration.
 4068    fn toggle_all_docks(
 4069        &mut self,
 4070        _: &ToggleAllDocks,
 4071        window: &mut Window,
 4072        cx: &mut Context<Self>,
 4073    ) {
 4074        let open_dock_positions = self.get_open_dock_positions(cx);
 4075
 4076        if !open_dock_positions.is_empty() {
 4077            self.close_all_docks(window, cx);
 4078        } else if !self.last_open_dock_positions.is_empty() {
 4079            self.restore_last_open_docks(window, cx);
 4080        }
 4081    }
 4082
 4083    /// Reopens docks from the most recently remembered configuration.
 4084    ///
 4085    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 4086    /// and clears the stored positions.
 4087    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4088        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 4089
 4090        for position in positions_to_open {
 4091            let dock = self.dock_at_position(position);
 4092            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 4093        }
 4094
 4095        cx.focus_self(window);
 4096        cx.notify();
 4097        self.serialize_workspace(window, cx);
 4098    }
 4099
 4100    /// Transfer focus to the panel of the given type.
 4101    pub fn focus_panel<T: Panel>(
 4102        &mut self,
 4103        window: &mut Window,
 4104        cx: &mut Context<Self>,
 4105    ) -> Option<Entity<T>> {
 4106        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 4107        panel.to_any().downcast().ok()
 4108    }
 4109
 4110    /// Focus the panel of the given type if it isn't already focused. If it is
 4111    /// already focused, then transfer focus back to the workspace center.
 4112    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4113    /// panel when transferring focus back to the center.
 4114    pub fn toggle_panel_focus<T: Panel>(
 4115        &mut self,
 4116        window: &mut Window,
 4117        cx: &mut Context<Self>,
 4118    ) -> bool {
 4119        let mut did_focus_panel = false;
 4120        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4121            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4122            did_focus_panel
 4123        });
 4124
 4125        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4126            self.close_panel::<T>(window, cx);
 4127        }
 4128
 4129        telemetry::event!(
 4130            "Panel Button Clicked",
 4131            name = T::persistent_name(),
 4132            toggle_state = did_focus_panel
 4133        );
 4134
 4135        did_focus_panel
 4136    }
 4137
 4138    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4139        if let Some(item) = self.active_item(cx) {
 4140            item.item_focus_handle(cx).focus(window, cx);
 4141        } else {
 4142            log::error!("Could not find a focus target when switching focus to the center panes",);
 4143        }
 4144    }
 4145
 4146    pub fn activate_panel_for_proto_id(
 4147        &mut self,
 4148        panel_id: PanelId,
 4149        window: &mut Window,
 4150        cx: &mut Context<Self>,
 4151    ) -> Option<Arc<dyn PanelHandle>> {
 4152        let mut panel = None;
 4153        for dock in self.all_docks() {
 4154            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4155                panel = dock.update(cx, |dock, cx| {
 4156                    dock.activate_panel(panel_index, window, cx);
 4157                    dock.set_open(true, window, cx);
 4158                    dock.active_panel().cloned()
 4159                });
 4160                break;
 4161            }
 4162        }
 4163
 4164        if panel.is_some() {
 4165            cx.notify();
 4166            self.serialize_workspace(window, cx);
 4167        }
 4168
 4169        panel
 4170    }
 4171
 4172    /// Focus or unfocus the given panel type, depending on the given callback.
 4173    fn focus_or_unfocus_panel<T: Panel>(
 4174        &mut self,
 4175        window: &mut Window,
 4176        cx: &mut Context<Self>,
 4177        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4178    ) -> Option<Arc<dyn PanelHandle>> {
 4179        let mut result_panel = None;
 4180        let mut serialize = false;
 4181        for dock in self.all_docks() {
 4182            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4183                let mut focus_center = false;
 4184                let panel = dock.update(cx, |dock, cx| {
 4185                    dock.activate_panel(panel_index, window, cx);
 4186
 4187                    let panel = dock.active_panel().cloned();
 4188                    if let Some(panel) = panel.as_ref() {
 4189                        if should_focus(&**panel, window, cx) {
 4190                            dock.set_open(true, window, cx);
 4191                            panel.panel_focus_handle(cx).focus(window, cx);
 4192                        } else {
 4193                            focus_center = true;
 4194                        }
 4195                    }
 4196                    panel
 4197                });
 4198
 4199                if focus_center {
 4200                    self.active_pane
 4201                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4202                }
 4203
 4204                result_panel = panel;
 4205                serialize = true;
 4206                break;
 4207            }
 4208        }
 4209
 4210        if serialize {
 4211            self.serialize_workspace(window, cx);
 4212        }
 4213
 4214        cx.notify();
 4215        result_panel
 4216    }
 4217
 4218    /// Open the panel of the given type
 4219    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4220        for dock in self.all_docks() {
 4221            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4222                dock.update(cx, |dock, cx| {
 4223                    dock.activate_panel(panel_index, window, cx);
 4224                    dock.set_open(true, window, cx);
 4225                });
 4226            }
 4227        }
 4228    }
 4229
 4230    /// Open the panel of the given type, dismissing any zoomed items that
 4231    /// would obscure it (e.g. a zoomed terminal).
 4232    pub fn reveal_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4233        let dock_position = self.all_docks().iter().find_map(|dock| {
 4234            let dock = dock.read(cx);
 4235            dock.panel_index_for_type::<T>().map(|_| dock.position())
 4236        });
 4237        self.dismiss_zoomed_items_to_reveal(dock_position, window, cx);
 4238        self.open_panel::<T>(window, cx);
 4239    }
 4240
 4241    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4242        for dock in self.all_docks().iter() {
 4243            dock.update(cx, |dock, cx| {
 4244                if dock.panel::<T>().is_some() {
 4245                    dock.set_open(false, window, cx)
 4246                }
 4247            })
 4248        }
 4249    }
 4250
 4251    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4252        self.all_docks()
 4253            .iter()
 4254            .find_map(|dock| dock.read(cx).panel::<T>())
 4255    }
 4256
 4257    fn dismiss_zoomed_items_to_reveal(
 4258        &mut self,
 4259        dock_to_reveal: Option<DockPosition>,
 4260        window: &mut Window,
 4261        cx: &mut Context<Self>,
 4262    ) {
 4263        // If a center pane is zoomed, unzoom it.
 4264        for pane in &self.panes {
 4265            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4266                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4267            }
 4268        }
 4269
 4270        // If another dock is zoomed, hide it.
 4271        let mut focus_center = false;
 4272        for dock in self.all_docks() {
 4273            dock.update(cx, |dock, cx| {
 4274                if Some(dock.position()) != dock_to_reveal
 4275                    && let Some(panel) = dock.active_panel()
 4276                    && panel.is_zoomed(window, cx)
 4277                {
 4278                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4279                    dock.set_open(false, window, cx);
 4280                }
 4281            });
 4282        }
 4283
 4284        if focus_center {
 4285            self.active_pane
 4286                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4287        }
 4288
 4289        if self.zoomed_position != dock_to_reveal {
 4290            self.zoomed = None;
 4291            self.zoomed_position = None;
 4292            cx.emit(Event::ZoomChanged);
 4293        }
 4294
 4295        cx.notify();
 4296    }
 4297
 4298    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4299        let pane = cx.new(|cx| {
 4300            let mut pane = Pane::new(
 4301                self.weak_handle(),
 4302                self.project.clone(),
 4303                self.pane_history_timestamp.clone(),
 4304                None,
 4305                NewFile.boxed_clone(),
 4306                true,
 4307                window,
 4308                cx,
 4309            );
 4310            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4311            pane
 4312        });
 4313        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4314            .detach();
 4315        self.panes.push(pane.clone());
 4316
 4317        window.focus(&pane.focus_handle(cx), cx);
 4318
 4319        cx.emit(Event::PaneAdded(pane.clone()));
 4320        pane
 4321    }
 4322
 4323    pub fn add_item_to_center(
 4324        &mut self,
 4325        item: Box<dyn ItemHandle>,
 4326        window: &mut Window,
 4327        cx: &mut Context<Self>,
 4328    ) -> bool {
 4329        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4330            if let Some(center_pane) = center_pane.upgrade() {
 4331                center_pane.update(cx, |pane, cx| {
 4332                    pane.add_item(item, true, true, None, window, cx)
 4333                });
 4334                true
 4335            } else {
 4336                false
 4337            }
 4338        } else {
 4339            false
 4340        }
 4341    }
 4342
 4343    pub fn add_item_to_active_pane(
 4344        &mut self,
 4345        item: Box<dyn ItemHandle>,
 4346        destination_index: Option<usize>,
 4347        focus_item: bool,
 4348        window: &mut Window,
 4349        cx: &mut App,
 4350    ) {
 4351        self.add_item(
 4352            self.active_pane.clone(),
 4353            item,
 4354            destination_index,
 4355            false,
 4356            focus_item,
 4357            window,
 4358            cx,
 4359        )
 4360    }
 4361
 4362    pub fn add_item(
 4363        &mut self,
 4364        pane: Entity<Pane>,
 4365        item: Box<dyn ItemHandle>,
 4366        destination_index: Option<usize>,
 4367        activate_pane: bool,
 4368        focus_item: bool,
 4369        window: &mut Window,
 4370        cx: &mut App,
 4371    ) {
 4372        pane.update(cx, |pane, cx| {
 4373            pane.add_item(
 4374                item,
 4375                activate_pane,
 4376                focus_item,
 4377                destination_index,
 4378                window,
 4379                cx,
 4380            )
 4381        });
 4382    }
 4383
 4384    pub fn split_item(
 4385        &mut self,
 4386        split_direction: SplitDirection,
 4387        item: Box<dyn ItemHandle>,
 4388        window: &mut Window,
 4389        cx: &mut Context<Self>,
 4390    ) {
 4391        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4392        self.add_item(new_pane, item, None, true, true, window, cx);
 4393    }
 4394
 4395    pub fn open_abs_path(
 4396        &mut self,
 4397        abs_path: PathBuf,
 4398        options: OpenOptions,
 4399        window: &mut Window,
 4400        cx: &mut Context<Self>,
 4401    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4402        cx.spawn_in(window, async move |workspace, cx| {
 4403            let open_paths_task_result = workspace
 4404                .update_in(cx, |workspace, window, cx| {
 4405                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4406                })
 4407                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4408                .await;
 4409            anyhow::ensure!(
 4410                open_paths_task_result.len() == 1,
 4411                "open abs path {abs_path:?} task returned incorrect number of results"
 4412            );
 4413            match open_paths_task_result
 4414                .into_iter()
 4415                .next()
 4416                .expect("ensured single task result")
 4417            {
 4418                Some(open_result) => {
 4419                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4420                }
 4421                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4422            }
 4423        })
 4424    }
 4425
 4426    pub fn split_abs_path(
 4427        &mut self,
 4428        abs_path: PathBuf,
 4429        visible: bool,
 4430        window: &mut Window,
 4431        cx: &mut Context<Self>,
 4432    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4433        let project_path_task =
 4434            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4435        cx.spawn_in(window, async move |this, cx| {
 4436            let (_, path) = project_path_task.await?;
 4437            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4438                .await
 4439        })
 4440    }
 4441
 4442    pub fn open_path(
 4443        &mut self,
 4444        path: impl Into<ProjectPath>,
 4445        pane: Option<WeakEntity<Pane>>,
 4446        focus_item: bool,
 4447        window: &mut Window,
 4448        cx: &mut App,
 4449    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4450        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4451    }
 4452
 4453    pub fn open_path_preview(
 4454        &mut self,
 4455        path: impl Into<ProjectPath>,
 4456        pane: Option<WeakEntity<Pane>>,
 4457        focus_item: bool,
 4458        allow_preview: bool,
 4459        activate: bool,
 4460        window: &mut Window,
 4461        cx: &mut App,
 4462    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4463        let pane = pane.unwrap_or_else(|| {
 4464            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4465                self.panes
 4466                    .first()
 4467                    .expect("There must be an active pane")
 4468                    .downgrade()
 4469            })
 4470        });
 4471
 4472        let project_path = path.into();
 4473        let task = self.load_path(project_path.clone(), window, cx);
 4474        window.spawn(cx, async move |cx| {
 4475            let (project_entry_id, build_item) = task.await?;
 4476
 4477            pane.update_in(cx, |pane, window, cx| {
 4478                pane.open_item(
 4479                    project_entry_id,
 4480                    project_path,
 4481                    focus_item,
 4482                    allow_preview,
 4483                    activate,
 4484                    None,
 4485                    window,
 4486                    cx,
 4487                    build_item,
 4488                )
 4489            })
 4490        })
 4491    }
 4492
 4493    pub fn split_path(
 4494        &mut self,
 4495        path: impl Into<ProjectPath>,
 4496        window: &mut Window,
 4497        cx: &mut Context<Self>,
 4498    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4499        self.split_path_preview(path, false, None, window, cx)
 4500    }
 4501
 4502    pub fn split_path_preview(
 4503        &mut self,
 4504        path: impl Into<ProjectPath>,
 4505        allow_preview: bool,
 4506        split_direction: Option<SplitDirection>,
 4507        window: &mut Window,
 4508        cx: &mut Context<Self>,
 4509    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4510        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4511            self.panes
 4512                .first()
 4513                .expect("There must be an active pane")
 4514                .downgrade()
 4515        });
 4516
 4517        if let Member::Pane(center_pane) = &self.center.root
 4518            && center_pane.read(cx).items_len() == 0
 4519        {
 4520            return self.open_path(path, Some(pane), true, window, cx);
 4521        }
 4522
 4523        let project_path = path.into();
 4524        let task = self.load_path(project_path.clone(), window, cx);
 4525        cx.spawn_in(window, async move |this, cx| {
 4526            let (project_entry_id, build_item) = task.await?;
 4527            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4528                let pane = pane.upgrade()?;
 4529                let new_pane = this.split_pane(
 4530                    pane,
 4531                    split_direction.unwrap_or(SplitDirection::Right),
 4532                    window,
 4533                    cx,
 4534                );
 4535                new_pane.update(cx, |new_pane, cx| {
 4536                    Some(new_pane.open_item(
 4537                        project_entry_id,
 4538                        project_path,
 4539                        true,
 4540                        allow_preview,
 4541                        true,
 4542                        None,
 4543                        window,
 4544                        cx,
 4545                        build_item,
 4546                    ))
 4547                })
 4548            })
 4549            .map(|option| option.context("pane was dropped"))?
 4550        })
 4551    }
 4552
 4553    fn load_path(
 4554        &mut self,
 4555        path: ProjectPath,
 4556        window: &mut Window,
 4557        cx: &mut App,
 4558    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4559        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4560        registry.open_path(self.project(), &path, window, cx)
 4561    }
 4562
 4563    pub fn find_project_item<T>(
 4564        &self,
 4565        pane: &Entity<Pane>,
 4566        project_item: &Entity<T::Item>,
 4567        cx: &App,
 4568    ) -> Option<Entity<T>>
 4569    where
 4570        T: ProjectItem,
 4571    {
 4572        use project::ProjectItem as _;
 4573        let project_item = project_item.read(cx);
 4574        let entry_id = project_item.entry_id(cx);
 4575        let project_path = project_item.project_path(cx);
 4576
 4577        let mut item = None;
 4578        if let Some(entry_id) = entry_id {
 4579            item = pane.read(cx).item_for_entry(entry_id, cx);
 4580        }
 4581        if item.is_none()
 4582            && let Some(project_path) = project_path
 4583        {
 4584            item = pane.read(cx).item_for_path(project_path, cx);
 4585        }
 4586
 4587        item.and_then(|item| item.downcast::<T>())
 4588    }
 4589
 4590    pub fn is_project_item_open<T>(
 4591        &self,
 4592        pane: &Entity<Pane>,
 4593        project_item: &Entity<T::Item>,
 4594        cx: &App,
 4595    ) -> bool
 4596    where
 4597        T: ProjectItem,
 4598    {
 4599        self.find_project_item::<T>(pane, project_item, cx)
 4600            .is_some()
 4601    }
 4602
 4603    pub fn open_project_item<T>(
 4604        &mut self,
 4605        pane: Entity<Pane>,
 4606        project_item: Entity<T::Item>,
 4607        activate_pane: bool,
 4608        focus_item: bool,
 4609        keep_old_preview: bool,
 4610        allow_new_preview: bool,
 4611        window: &mut Window,
 4612        cx: &mut Context<Self>,
 4613    ) -> Entity<T>
 4614    where
 4615        T: ProjectItem,
 4616    {
 4617        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4618
 4619        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4620            if !keep_old_preview
 4621                && let Some(old_id) = old_item_id
 4622                && old_id != item.item_id()
 4623            {
 4624                // switching to a different item, so unpreview old active item
 4625                pane.update(cx, |pane, _| {
 4626                    pane.unpreview_item_if_preview(old_id);
 4627                });
 4628            }
 4629
 4630            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4631            if !allow_new_preview {
 4632                pane.update(cx, |pane, _| {
 4633                    pane.unpreview_item_if_preview(item.item_id());
 4634                });
 4635            }
 4636            return item;
 4637        }
 4638
 4639        let item = pane.update(cx, |pane, cx| {
 4640            cx.new(|cx| {
 4641                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4642            })
 4643        });
 4644        let mut destination_index = None;
 4645        pane.update(cx, |pane, cx| {
 4646            if !keep_old_preview && let Some(old_id) = old_item_id {
 4647                pane.unpreview_item_if_preview(old_id);
 4648            }
 4649            if allow_new_preview {
 4650                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4651            }
 4652        });
 4653
 4654        self.add_item(
 4655            pane,
 4656            Box::new(item.clone()),
 4657            destination_index,
 4658            activate_pane,
 4659            focus_item,
 4660            window,
 4661            cx,
 4662        );
 4663        item
 4664    }
 4665
 4666    pub fn open_shared_screen(
 4667        &mut self,
 4668        peer_id: PeerId,
 4669        window: &mut Window,
 4670        cx: &mut Context<Self>,
 4671    ) {
 4672        if let Some(shared_screen) =
 4673            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4674        {
 4675            self.active_pane.update(cx, |pane, cx| {
 4676                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4677            });
 4678        }
 4679    }
 4680
 4681    pub fn activate_item(
 4682        &mut self,
 4683        item: &dyn ItemHandle,
 4684        activate_pane: bool,
 4685        focus_item: bool,
 4686        window: &mut Window,
 4687        cx: &mut App,
 4688    ) -> bool {
 4689        let result = self.panes.iter().find_map(|pane| {
 4690            pane.read(cx)
 4691                .index_for_item(item)
 4692                .map(|ix| (pane.clone(), ix))
 4693        });
 4694        if let Some((pane, ix)) = result {
 4695            pane.update(cx, |pane, cx| {
 4696                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4697            });
 4698            true
 4699        } else {
 4700            false
 4701        }
 4702    }
 4703
 4704    fn activate_pane_at_index(
 4705        &mut self,
 4706        action: &ActivatePane,
 4707        window: &mut Window,
 4708        cx: &mut Context<Self>,
 4709    ) {
 4710        let panes = self.center.panes();
 4711        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4712            window.focus(&pane.focus_handle(cx), cx);
 4713        } else {
 4714            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4715                .detach();
 4716        }
 4717    }
 4718
 4719    fn move_item_to_pane_at_index(
 4720        &mut self,
 4721        action: &MoveItemToPane,
 4722        window: &mut Window,
 4723        cx: &mut Context<Self>,
 4724    ) {
 4725        let panes = self.center.panes();
 4726        let destination = match panes.get(action.destination) {
 4727            Some(&destination) => destination.clone(),
 4728            None => {
 4729                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4730                    return;
 4731                }
 4732                let direction = SplitDirection::Right;
 4733                let split_off_pane = self
 4734                    .find_pane_in_direction(direction, cx)
 4735                    .unwrap_or_else(|| self.active_pane.clone());
 4736                let new_pane = self.add_pane(window, cx);
 4737                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4738                new_pane
 4739            }
 4740        };
 4741
 4742        if action.clone {
 4743            if self
 4744                .active_pane
 4745                .read(cx)
 4746                .active_item()
 4747                .is_some_and(|item| item.can_split(cx))
 4748            {
 4749                clone_active_item(
 4750                    self.database_id(),
 4751                    &self.active_pane,
 4752                    &destination,
 4753                    action.focus,
 4754                    window,
 4755                    cx,
 4756                );
 4757                return;
 4758            }
 4759        }
 4760        move_active_item(
 4761            &self.active_pane,
 4762            &destination,
 4763            action.focus,
 4764            true,
 4765            window,
 4766            cx,
 4767        )
 4768    }
 4769
 4770    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4771        let panes = self.center.panes();
 4772        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4773            let next_ix = (ix + 1) % panes.len();
 4774            let next_pane = panes[next_ix].clone();
 4775            window.focus(&next_pane.focus_handle(cx), cx);
 4776        }
 4777    }
 4778
 4779    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4780        let panes = self.center.panes();
 4781        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4782            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4783            let prev_pane = panes[prev_ix].clone();
 4784            window.focus(&prev_pane.focus_handle(cx), cx);
 4785        }
 4786    }
 4787
 4788    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4789        let last_pane = self.center.last_pane();
 4790        window.focus(&last_pane.focus_handle(cx), cx);
 4791    }
 4792
 4793    pub fn activate_pane_in_direction(
 4794        &mut self,
 4795        direction: SplitDirection,
 4796        window: &mut Window,
 4797        cx: &mut App,
 4798    ) {
 4799        use ActivateInDirectionTarget as Target;
 4800        enum Origin {
 4801            Sidebar,
 4802            LeftDock,
 4803            RightDock,
 4804            BottomDock,
 4805            Center,
 4806        }
 4807
 4808        let origin: Origin = if self
 4809            .sidebar_focus_handle
 4810            .as_ref()
 4811            .is_some_and(|h| h.contains_focused(window, cx))
 4812        {
 4813            Origin::Sidebar
 4814        } else {
 4815            [
 4816                (&self.left_dock, Origin::LeftDock),
 4817                (&self.right_dock, Origin::RightDock),
 4818                (&self.bottom_dock, Origin::BottomDock),
 4819            ]
 4820            .into_iter()
 4821            .find_map(|(dock, origin)| {
 4822                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4823                    Some(origin)
 4824                } else {
 4825                    None
 4826                }
 4827            })
 4828            .unwrap_or(Origin::Center)
 4829        };
 4830
 4831        let get_last_active_pane = || {
 4832            let pane = self
 4833                .last_active_center_pane
 4834                .clone()
 4835                .unwrap_or_else(|| {
 4836                    self.panes
 4837                        .first()
 4838                        .expect("There must be an active pane")
 4839                        .downgrade()
 4840                })
 4841                .upgrade()?;
 4842            (pane.read(cx).items_len() != 0).then_some(pane)
 4843        };
 4844
 4845        let try_dock =
 4846            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4847
 4848        let sidebar_target = self
 4849            .sidebar_focus_handle
 4850            .as_ref()
 4851            .map(|h| Target::Sidebar(h.clone()));
 4852
 4853        let sidebar_on_right = self
 4854            .multi_workspace
 4855            .as_ref()
 4856            .and_then(|mw| mw.upgrade())
 4857            .map_or(false, |mw| {
 4858                mw.read(cx).sidebar_side(cx) == SidebarSide::Right
 4859            });
 4860
 4861        let away_from_sidebar = if sidebar_on_right {
 4862            SplitDirection::Left
 4863        } else {
 4864            SplitDirection::Right
 4865        };
 4866
 4867        let (near_dock, far_dock) = if sidebar_on_right {
 4868            (&self.right_dock, &self.left_dock)
 4869        } else {
 4870            (&self.left_dock, &self.right_dock)
 4871        };
 4872
 4873        let target = match (origin, direction) {
 4874            (Origin::Sidebar, dir) if dir == away_from_sidebar => try_dock(near_dock)
 4875                .or_else(|| get_last_active_pane().map(Target::Pane))
 4876                .or_else(|| try_dock(&self.bottom_dock))
 4877                .or_else(|| try_dock(far_dock)),
 4878
 4879            (Origin::Sidebar, _) => None,
 4880
 4881            // We're in the center, so we first try to go to a different pane,
 4882            // otherwise try to go to a dock.
 4883            (Origin::Center, direction) => {
 4884                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4885                    Some(Target::Pane(pane))
 4886                } else {
 4887                    match direction {
 4888                        SplitDirection::Up => None,
 4889                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4890                        SplitDirection::Left => {
 4891                            let dock_target = try_dock(&self.left_dock);
 4892                            if sidebar_on_right {
 4893                                dock_target
 4894                            } else {
 4895                                dock_target.or(sidebar_target)
 4896                            }
 4897                        }
 4898                        SplitDirection::Right => {
 4899                            let dock_target = try_dock(&self.right_dock);
 4900                            if sidebar_on_right {
 4901                                dock_target.or(sidebar_target)
 4902                            } else {
 4903                                dock_target
 4904                            }
 4905                        }
 4906                    }
 4907                }
 4908            }
 4909
 4910            (Origin::LeftDock, SplitDirection::Right) => {
 4911                if let Some(last_active_pane) = get_last_active_pane() {
 4912                    Some(Target::Pane(last_active_pane))
 4913                } else {
 4914                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4915                }
 4916            }
 4917
 4918            (Origin::LeftDock, SplitDirection::Left) => {
 4919                if sidebar_on_right {
 4920                    None
 4921                } else {
 4922                    sidebar_target
 4923                }
 4924            }
 4925
 4926            (Origin::LeftDock, SplitDirection::Down)
 4927            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4928
 4929            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4930            (Origin::BottomDock, SplitDirection::Left) => {
 4931                let dock_target = try_dock(&self.left_dock);
 4932                if sidebar_on_right {
 4933                    dock_target
 4934                } else {
 4935                    dock_target.or(sidebar_target)
 4936                }
 4937            }
 4938            (Origin::BottomDock, SplitDirection::Right) => {
 4939                let dock_target = try_dock(&self.right_dock);
 4940                if sidebar_on_right {
 4941                    dock_target.or(sidebar_target)
 4942                } else {
 4943                    dock_target
 4944                }
 4945            }
 4946
 4947            (Origin::RightDock, SplitDirection::Left) => {
 4948                if let Some(last_active_pane) = get_last_active_pane() {
 4949                    Some(Target::Pane(last_active_pane))
 4950                } else {
 4951                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4952                }
 4953            }
 4954
 4955            (Origin::RightDock, SplitDirection::Right) => {
 4956                if sidebar_on_right {
 4957                    sidebar_target
 4958                } else {
 4959                    None
 4960                }
 4961            }
 4962
 4963            _ => None,
 4964        };
 4965
 4966        match target {
 4967            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4968                let pane = pane.read(cx);
 4969                if let Some(item) = pane.active_item() {
 4970                    item.item_focus_handle(cx).focus(window, cx);
 4971                } else {
 4972                    log::error!(
 4973                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4974                    );
 4975                }
 4976            }
 4977            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4978                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4979                window.defer(cx, move |window, cx| {
 4980                    let dock = dock.read(cx);
 4981                    if let Some(panel) = dock.active_panel() {
 4982                        panel.panel_focus_handle(cx).focus(window, cx);
 4983                    } else {
 4984                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4985                    }
 4986                })
 4987            }
 4988            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4989                focus_handle.focus(window, cx);
 4990            }
 4991            None => {}
 4992        }
 4993    }
 4994
 4995    pub fn move_item_to_pane_in_direction(
 4996        &mut self,
 4997        action: &MoveItemToPaneInDirection,
 4998        window: &mut Window,
 4999        cx: &mut Context<Self>,
 5000    ) {
 5001        let destination = match self.find_pane_in_direction(action.direction, cx) {
 5002            Some(destination) => destination,
 5003            None => {
 5004                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 5005                    return;
 5006                }
 5007                let new_pane = self.add_pane(window, cx);
 5008                self.center
 5009                    .split(&self.active_pane, &new_pane, action.direction, cx);
 5010                new_pane
 5011            }
 5012        };
 5013
 5014        if action.clone {
 5015            if self
 5016                .active_pane
 5017                .read(cx)
 5018                .active_item()
 5019                .is_some_and(|item| item.can_split(cx))
 5020            {
 5021                clone_active_item(
 5022                    self.database_id(),
 5023                    &self.active_pane,
 5024                    &destination,
 5025                    action.focus,
 5026                    window,
 5027                    cx,
 5028                );
 5029                return;
 5030            }
 5031        }
 5032        move_active_item(
 5033            &self.active_pane,
 5034            &destination,
 5035            action.focus,
 5036            true,
 5037            window,
 5038            cx,
 5039        );
 5040    }
 5041
 5042    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 5043        self.center.bounding_box_for_pane(pane)
 5044    }
 5045
 5046    pub fn find_pane_in_direction(
 5047        &mut self,
 5048        direction: SplitDirection,
 5049        cx: &App,
 5050    ) -> Option<Entity<Pane>> {
 5051        self.center
 5052            .find_pane_in_direction(&self.active_pane, direction, cx)
 5053            .cloned()
 5054    }
 5055
 5056    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5057        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 5058            self.center.swap(&self.active_pane, &to, cx);
 5059            cx.notify();
 5060        }
 5061    }
 5062
 5063    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5064        if self
 5065            .center
 5066            .move_to_border(&self.active_pane, direction, cx)
 5067            .unwrap()
 5068        {
 5069            cx.notify();
 5070        }
 5071    }
 5072
 5073    pub fn resize_pane(
 5074        &mut self,
 5075        axis: gpui::Axis,
 5076        amount: Pixels,
 5077        window: &mut Window,
 5078        cx: &mut Context<Self>,
 5079    ) {
 5080        let docks = self.all_docks();
 5081        let active_dock = docks
 5082            .into_iter()
 5083            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 5084
 5085        if let Some(dock_entity) = active_dock {
 5086            let dock = dock_entity.read(cx);
 5087            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 5088                return;
 5089            };
 5090            match dock.position() {
 5091                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 5092                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 5093                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 5094            }
 5095        } else {
 5096            self.center
 5097                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 5098        }
 5099        cx.notify();
 5100    }
 5101
 5102    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 5103        self.center.reset_pane_sizes(cx);
 5104        cx.notify();
 5105    }
 5106
 5107    fn handle_pane_focused(
 5108        &mut self,
 5109        pane: Entity<Pane>,
 5110        window: &mut Window,
 5111        cx: &mut Context<Self>,
 5112    ) {
 5113        // This is explicitly hoisted out of the following check for pane identity as
 5114        // terminal panel panes are not registered as a center panes.
 5115        self.status_bar.update(cx, |status_bar, cx| {
 5116            status_bar.set_active_pane(&pane, window, cx);
 5117        });
 5118        if self.active_pane != pane {
 5119            self.set_active_pane(&pane, window, cx);
 5120        }
 5121
 5122        if self.last_active_center_pane.is_none() {
 5123            self.last_active_center_pane = Some(pane.downgrade());
 5124        }
 5125
 5126        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 5127        // This prevents the dock from closing when focus events fire during window activation.
 5128        // We also preserve any dock whose active panel itself has focus — this covers
 5129        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 5130        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 5131            let dock_read = dock.read(cx);
 5132            if let Some(panel) = dock_read.active_panel() {
 5133                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 5134                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 5135                {
 5136                    return Some(dock_read.position());
 5137                }
 5138            }
 5139            None
 5140        });
 5141
 5142        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 5143        if pane.read(cx).is_zoomed() {
 5144            self.zoomed = Some(pane.downgrade().into());
 5145        } else {
 5146            self.zoomed = None;
 5147        }
 5148        self.zoomed_position = None;
 5149        cx.emit(Event::ZoomChanged);
 5150        self.update_active_view_for_followers(window, cx);
 5151        pane.update(cx, |pane, _| {
 5152            pane.track_alternate_file_items();
 5153        });
 5154
 5155        cx.notify();
 5156    }
 5157
 5158    fn set_active_pane(
 5159        &mut self,
 5160        pane: &Entity<Pane>,
 5161        window: &mut Window,
 5162        cx: &mut Context<Self>,
 5163    ) {
 5164        self.active_pane = pane.clone();
 5165        self.active_item_path_changed(true, window, cx);
 5166        self.last_active_center_pane = Some(pane.downgrade());
 5167    }
 5168
 5169    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5170        self.update_active_view_for_followers(window, cx);
 5171    }
 5172
 5173    fn handle_pane_event(
 5174        &mut self,
 5175        pane: &Entity<Pane>,
 5176        event: &pane::Event,
 5177        window: &mut Window,
 5178        cx: &mut Context<Self>,
 5179    ) {
 5180        let mut serialize_workspace = true;
 5181        match event {
 5182            pane::Event::AddItem { item } => {
 5183                item.added_to_pane(self, pane.clone(), window, cx);
 5184                cx.emit(Event::ItemAdded {
 5185                    item: item.boxed_clone(),
 5186                });
 5187            }
 5188            pane::Event::Split { direction, mode } => {
 5189                match mode {
 5190                    SplitMode::ClonePane => {
 5191                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5192                            .detach();
 5193                    }
 5194                    SplitMode::EmptyPane => {
 5195                        self.split_pane(pane.clone(), *direction, window, cx);
 5196                    }
 5197                    SplitMode::MovePane => {
 5198                        self.split_and_move(pane.clone(), *direction, window, cx);
 5199                    }
 5200                };
 5201            }
 5202            pane::Event::JoinIntoNext => {
 5203                self.join_pane_into_next(pane.clone(), window, cx);
 5204            }
 5205            pane::Event::JoinAll => {
 5206                self.join_all_panes(window, cx);
 5207            }
 5208            pane::Event::Remove { focus_on_pane } => {
 5209                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5210            }
 5211            pane::Event::ActivateItem {
 5212                local,
 5213                focus_changed,
 5214            } => {
 5215                window.invalidate_character_coordinates();
 5216
 5217                pane.update(cx, |pane, _| {
 5218                    pane.track_alternate_file_items();
 5219                });
 5220                if *local {
 5221                    self.unfollow_in_pane(pane, window, cx);
 5222                }
 5223                serialize_workspace = *focus_changed || pane != self.active_pane();
 5224                if pane == self.active_pane() {
 5225                    self.active_item_path_changed(*focus_changed, window, cx);
 5226                    self.update_active_view_for_followers(window, cx);
 5227                } else if *local {
 5228                    self.set_active_pane(pane, window, cx);
 5229                }
 5230            }
 5231            pane::Event::UserSavedItem { item, save_intent } => {
 5232                cx.emit(Event::UserSavedItem {
 5233                    pane: pane.downgrade(),
 5234                    item: item.boxed_clone(),
 5235                    save_intent: *save_intent,
 5236                });
 5237                serialize_workspace = false;
 5238            }
 5239            pane::Event::ChangeItemTitle => {
 5240                if *pane == self.active_pane {
 5241                    self.active_item_path_changed(false, window, cx);
 5242                }
 5243                serialize_workspace = false;
 5244            }
 5245            pane::Event::RemovedItem { item } => {
 5246                cx.emit(Event::ActiveItemChanged);
 5247                self.update_window_edited(window, cx);
 5248                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5249                    && entry.get().entity_id() == pane.entity_id()
 5250                {
 5251                    entry.remove();
 5252                }
 5253                cx.emit(Event::ItemRemoved {
 5254                    item_id: item.item_id(),
 5255                });
 5256            }
 5257            pane::Event::Focus => {
 5258                window.invalidate_character_coordinates();
 5259                self.handle_pane_focused(pane.clone(), window, cx);
 5260            }
 5261            pane::Event::ZoomIn => {
 5262                if *pane == self.active_pane {
 5263                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5264                    if pane.read(cx).has_focus(window, cx) {
 5265                        self.zoomed = Some(pane.downgrade().into());
 5266                        self.zoomed_position = None;
 5267                        cx.emit(Event::ZoomChanged);
 5268                    }
 5269                    cx.notify();
 5270                }
 5271            }
 5272            pane::Event::ZoomOut => {
 5273                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5274                if self.zoomed_position.is_none() {
 5275                    self.zoomed = None;
 5276                    cx.emit(Event::ZoomChanged);
 5277                }
 5278                cx.notify();
 5279            }
 5280            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5281        }
 5282
 5283        if serialize_workspace {
 5284            self.serialize_workspace(window, cx);
 5285        }
 5286    }
 5287
 5288    pub fn unfollow_in_pane(
 5289        &mut self,
 5290        pane: &Entity<Pane>,
 5291        window: &mut Window,
 5292        cx: &mut Context<Workspace>,
 5293    ) -> Option<CollaboratorId> {
 5294        let leader_id = self.leader_for_pane(pane)?;
 5295        self.unfollow(leader_id, window, cx);
 5296        Some(leader_id)
 5297    }
 5298
 5299    pub fn split_pane(
 5300        &mut self,
 5301        pane_to_split: Entity<Pane>,
 5302        split_direction: SplitDirection,
 5303        window: &mut Window,
 5304        cx: &mut Context<Self>,
 5305    ) -> Entity<Pane> {
 5306        let new_pane = self.add_pane(window, cx);
 5307        self.center
 5308            .split(&pane_to_split, &new_pane, split_direction, cx);
 5309        cx.notify();
 5310        new_pane
 5311    }
 5312
 5313    pub fn split_and_move(
 5314        &mut self,
 5315        pane: Entity<Pane>,
 5316        direction: SplitDirection,
 5317        window: &mut Window,
 5318        cx: &mut Context<Self>,
 5319    ) {
 5320        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5321            return;
 5322        };
 5323        let new_pane = self.add_pane(window, cx);
 5324        new_pane.update(cx, |pane, cx| {
 5325            pane.add_item(item, true, true, None, window, cx)
 5326        });
 5327        self.center.split(&pane, &new_pane, direction, cx);
 5328        cx.notify();
 5329    }
 5330
 5331    pub fn split_and_clone(
 5332        &mut self,
 5333        pane: Entity<Pane>,
 5334        direction: SplitDirection,
 5335        window: &mut Window,
 5336        cx: &mut Context<Self>,
 5337    ) -> Task<Option<Entity<Pane>>> {
 5338        let Some(item) = pane.read(cx).active_item() else {
 5339            return Task::ready(None);
 5340        };
 5341        if !item.can_split(cx) {
 5342            return Task::ready(None);
 5343        }
 5344        let task = item.clone_on_split(self.database_id(), window, cx);
 5345        cx.spawn_in(window, async move |this, cx| {
 5346            if let Some(clone) = task.await {
 5347                this.update_in(cx, |this, window, cx| {
 5348                    let new_pane = this.add_pane(window, cx);
 5349                    let nav_history = pane.read(cx).fork_nav_history();
 5350                    new_pane.update(cx, |pane, cx| {
 5351                        pane.set_nav_history(nav_history, cx);
 5352                        pane.add_item(clone, true, true, None, window, cx)
 5353                    });
 5354                    this.center.split(&pane, &new_pane, direction, cx);
 5355                    cx.notify();
 5356                    new_pane
 5357                })
 5358                .ok()
 5359            } else {
 5360                None
 5361            }
 5362        })
 5363    }
 5364
 5365    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5366        let active_item = self.active_pane.read(cx).active_item();
 5367        for pane in &self.panes {
 5368            join_pane_into_active(&self.active_pane, pane, window, cx);
 5369        }
 5370        if let Some(active_item) = active_item {
 5371            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5372        }
 5373        cx.notify();
 5374    }
 5375
 5376    pub fn join_pane_into_next(
 5377        &mut self,
 5378        pane: Entity<Pane>,
 5379        window: &mut Window,
 5380        cx: &mut Context<Self>,
 5381    ) {
 5382        let next_pane = self
 5383            .find_pane_in_direction(SplitDirection::Right, cx)
 5384            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5385            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5386            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5387        let Some(next_pane) = next_pane else {
 5388            return;
 5389        };
 5390        move_all_items(&pane, &next_pane, window, cx);
 5391        cx.notify();
 5392    }
 5393
 5394    fn remove_pane(
 5395        &mut self,
 5396        pane: Entity<Pane>,
 5397        focus_on: Option<Entity<Pane>>,
 5398        window: &mut Window,
 5399        cx: &mut Context<Self>,
 5400    ) {
 5401        if self.center.remove(&pane, cx).unwrap() {
 5402            self.force_remove_pane(&pane, &focus_on, window, cx);
 5403            self.unfollow_in_pane(&pane, window, cx);
 5404            self.last_leaders_by_pane.remove(&pane.downgrade());
 5405            for removed_item in pane.read(cx).items() {
 5406                self.panes_by_item.remove(&removed_item.item_id());
 5407            }
 5408
 5409            cx.notify();
 5410        } else {
 5411            self.active_item_path_changed(true, window, cx);
 5412        }
 5413        cx.emit(Event::PaneRemoved);
 5414    }
 5415
 5416    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5417        &mut self.panes
 5418    }
 5419
 5420    pub fn panes(&self) -> &[Entity<Pane>] {
 5421        &self.panes
 5422    }
 5423
 5424    pub fn active_pane(&self) -> &Entity<Pane> {
 5425        &self.active_pane
 5426    }
 5427
 5428    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5429        for dock in self.all_docks() {
 5430            if dock.focus_handle(cx).contains_focused(window, cx)
 5431                && let Some(pane) = dock
 5432                    .read(cx)
 5433                    .active_panel()
 5434                    .and_then(|panel| panel.pane(cx))
 5435            {
 5436                return pane;
 5437            }
 5438        }
 5439        self.active_pane().clone()
 5440    }
 5441
 5442    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5443        self.find_pane_in_direction(SplitDirection::Right, cx)
 5444            .unwrap_or_else(|| {
 5445                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5446            })
 5447    }
 5448
 5449    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5450        self.pane_for_item_id(handle.item_id())
 5451    }
 5452
 5453    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5454        let weak_pane = self.panes_by_item.get(&item_id)?;
 5455        weak_pane.upgrade()
 5456    }
 5457
 5458    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5459        self.panes
 5460            .iter()
 5461            .find(|pane| pane.entity_id() == entity_id)
 5462            .cloned()
 5463    }
 5464
 5465    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5466        self.follower_states.retain(|leader_id, state| {
 5467            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5468                for item in state.items_by_leader_view_id.values() {
 5469                    item.view.set_leader_id(None, window, cx);
 5470                }
 5471                false
 5472            } else {
 5473                true
 5474            }
 5475        });
 5476        cx.notify();
 5477    }
 5478
 5479    pub fn start_following(
 5480        &mut self,
 5481        leader_id: impl Into<CollaboratorId>,
 5482        window: &mut Window,
 5483        cx: &mut Context<Self>,
 5484    ) -> Option<Task<Result<()>>> {
 5485        let leader_id = leader_id.into();
 5486        let pane = self.active_pane().clone();
 5487
 5488        self.last_leaders_by_pane
 5489            .insert(pane.downgrade(), leader_id);
 5490        self.unfollow(leader_id, window, cx);
 5491        self.unfollow_in_pane(&pane, window, cx);
 5492        self.follower_states.insert(
 5493            leader_id,
 5494            FollowerState {
 5495                center_pane: pane.clone(),
 5496                dock_pane: None,
 5497                active_view_id: None,
 5498                items_by_leader_view_id: Default::default(),
 5499            },
 5500        );
 5501        cx.notify();
 5502
 5503        match leader_id {
 5504            CollaboratorId::PeerId(leader_peer_id) => {
 5505                let room_id = self.active_call()?.room_id(cx)?;
 5506                let project_id = self.project.read(cx).remote_id();
 5507                let request = self.app_state.client.request(proto::Follow {
 5508                    room_id,
 5509                    project_id,
 5510                    leader_id: Some(leader_peer_id),
 5511                });
 5512
 5513                Some(cx.spawn_in(window, async move |this, cx| {
 5514                    let response = request.await?;
 5515                    this.update(cx, |this, _| {
 5516                        let state = this
 5517                            .follower_states
 5518                            .get_mut(&leader_id)
 5519                            .context("following interrupted")?;
 5520                        state.active_view_id = response
 5521                            .active_view
 5522                            .as_ref()
 5523                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5524                        anyhow::Ok(())
 5525                    })??;
 5526                    if let Some(view) = response.active_view {
 5527                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5528                    }
 5529                    this.update_in(cx, |this, window, cx| {
 5530                        this.leader_updated(leader_id, window, cx)
 5531                    })?;
 5532                    Ok(())
 5533                }))
 5534            }
 5535            CollaboratorId::Agent => {
 5536                self.leader_updated(leader_id, window, cx)?;
 5537                Some(Task::ready(Ok(())))
 5538            }
 5539        }
 5540    }
 5541
 5542    pub fn follow_next_collaborator(
 5543        &mut self,
 5544        _: &FollowNextCollaborator,
 5545        window: &mut Window,
 5546        cx: &mut Context<Self>,
 5547    ) {
 5548        let collaborators = self.project.read(cx).collaborators();
 5549        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5550            let mut collaborators = collaborators.keys().copied();
 5551            for peer_id in collaborators.by_ref() {
 5552                if CollaboratorId::PeerId(peer_id) == leader_id {
 5553                    break;
 5554                }
 5555            }
 5556            collaborators.next().map(CollaboratorId::PeerId)
 5557        } else if let Some(last_leader_id) =
 5558            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5559        {
 5560            match last_leader_id {
 5561                CollaboratorId::PeerId(peer_id) => {
 5562                    if collaborators.contains_key(peer_id) {
 5563                        Some(*last_leader_id)
 5564                    } else {
 5565                        None
 5566                    }
 5567                }
 5568                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5569            }
 5570        } else {
 5571            None
 5572        };
 5573
 5574        let pane = self.active_pane.clone();
 5575        let Some(leader_id) = next_leader_id.or_else(|| {
 5576            Some(CollaboratorId::PeerId(
 5577                collaborators.keys().copied().next()?,
 5578            ))
 5579        }) else {
 5580            return;
 5581        };
 5582        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5583            return;
 5584        }
 5585        if let Some(task) = self.start_following(leader_id, window, cx) {
 5586            task.detach_and_log_err(cx)
 5587        }
 5588    }
 5589
 5590    pub fn follow(
 5591        &mut self,
 5592        leader_id: impl Into<CollaboratorId>,
 5593        window: &mut Window,
 5594        cx: &mut Context<Self>,
 5595    ) {
 5596        let leader_id = leader_id.into();
 5597
 5598        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5599            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5600                return;
 5601            };
 5602            let Some(remote_participant) =
 5603                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5604            else {
 5605                return;
 5606            };
 5607
 5608            let project = self.project.read(cx);
 5609
 5610            let other_project_id = match remote_participant.location {
 5611                ParticipantLocation::External => None,
 5612                ParticipantLocation::UnsharedProject => None,
 5613                ParticipantLocation::SharedProject { project_id } => {
 5614                    if Some(project_id) == project.remote_id() {
 5615                        None
 5616                    } else {
 5617                        Some(project_id)
 5618                    }
 5619                }
 5620            };
 5621
 5622            // if they are active in another project, follow there.
 5623            if let Some(project_id) = other_project_id {
 5624                let app_state = self.app_state.clone();
 5625                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5626                    .detach_and_prompt_err("Failed to join project", window, cx, |error, _, _| {
 5627                        Some(format!("{error:#}"))
 5628                    });
 5629            }
 5630        }
 5631
 5632        // if you're already following, find the right pane and focus it.
 5633        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5634            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5635
 5636            return;
 5637        }
 5638
 5639        // Otherwise, follow.
 5640        if let Some(task) = self.start_following(leader_id, window, cx) {
 5641            task.detach_and_log_err(cx)
 5642        }
 5643    }
 5644
 5645    pub fn unfollow(
 5646        &mut self,
 5647        leader_id: impl Into<CollaboratorId>,
 5648        window: &mut Window,
 5649        cx: &mut Context<Self>,
 5650    ) -> Option<()> {
 5651        cx.notify();
 5652
 5653        let leader_id = leader_id.into();
 5654        let state = self.follower_states.remove(&leader_id)?;
 5655        for (_, item) in state.items_by_leader_view_id {
 5656            item.view.set_leader_id(None, window, cx);
 5657        }
 5658
 5659        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5660            let project_id = self.project.read(cx).remote_id();
 5661            let room_id = self.active_call()?.room_id(cx)?;
 5662            self.app_state
 5663                .client
 5664                .send(proto::Unfollow {
 5665                    room_id,
 5666                    project_id,
 5667                    leader_id: Some(leader_peer_id),
 5668                })
 5669                .log_err();
 5670        }
 5671
 5672        Some(())
 5673    }
 5674
 5675    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5676        self.follower_states.contains_key(&id.into())
 5677    }
 5678
 5679    fn active_item_path_changed(
 5680        &mut self,
 5681        focus_changed: bool,
 5682        window: &mut Window,
 5683        cx: &mut Context<Self>,
 5684    ) {
 5685        cx.emit(Event::ActiveItemChanged);
 5686        let active_entry = self.active_project_path(cx);
 5687        self.project.update(cx, |project, cx| {
 5688            project.set_active_path(active_entry.clone(), cx)
 5689        });
 5690
 5691        if focus_changed && let Some(project_path) = &active_entry {
 5692            let git_store_entity = self.project.read(cx).git_store().clone();
 5693            git_store_entity.update(cx, |git_store, cx| {
 5694                git_store.set_active_repo_for_path(project_path, cx);
 5695            });
 5696        }
 5697
 5698        self.update_window_title(window, cx);
 5699    }
 5700
 5701    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5702        let project = self.project().read(cx);
 5703        let mut title = String::new();
 5704
 5705        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5706            let name = {
 5707                let settings_location = SettingsLocation {
 5708                    worktree_id: worktree.read(cx).id(),
 5709                    path: RelPath::empty(),
 5710                };
 5711
 5712                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5713                match &settings.project_name {
 5714                    Some(name) => name.as_str(),
 5715                    None => worktree.read(cx).root_name_str(),
 5716                }
 5717            };
 5718            if i > 0 {
 5719                title.push_str(", ");
 5720            }
 5721            title.push_str(name);
 5722        }
 5723
 5724        if title.is_empty() {
 5725            title = "empty project".to_string();
 5726        }
 5727
 5728        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5729            let filename = path.path.file_name().or_else(|| {
 5730                Some(
 5731                    project
 5732                        .worktree_for_id(path.worktree_id, cx)?
 5733                        .read(cx)
 5734                        .root_name_str(),
 5735                )
 5736            });
 5737
 5738            if let Some(filename) = filename {
 5739                title.push_str("");
 5740                title.push_str(filename.as_ref());
 5741            }
 5742        }
 5743
 5744        if project.is_via_collab() {
 5745            title.push_str("");
 5746        } else if project.is_shared() {
 5747            title.push_str("");
 5748        }
 5749
 5750        if let Some(last_title) = self.last_window_title.as_ref()
 5751            && &title == last_title
 5752        {
 5753            return;
 5754        }
 5755        window.set_window_title(&title);
 5756        SystemWindowTabController::update_tab_title(
 5757            cx,
 5758            window.window_handle().window_id(),
 5759            SharedString::from(&title),
 5760        );
 5761        self.last_window_title = Some(title);
 5762    }
 5763
 5764    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5765        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5766        if is_edited != self.window_edited {
 5767            self.window_edited = is_edited;
 5768            window.set_window_edited(self.window_edited)
 5769        }
 5770    }
 5771
 5772    fn update_item_dirty_state(
 5773        &mut self,
 5774        item: &dyn ItemHandle,
 5775        window: &mut Window,
 5776        cx: &mut App,
 5777    ) {
 5778        let is_dirty = item.is_dirty(cx);
 5779        let item_id = item.item_id();
 5780        let was_dirty = self.dirty_items.contains_key(&item_id);
 5781        if is_dirty == was_dirty {
 5782            return;
 5783        }
 5784        if was_dirty {
 5785            self.dirty_items.remove(&item_id);
 5786            self.update_window_edited(window, cx);
 5787            return;
 5788        }
 5789
 5790        let workspace = self.weak_handle();
 5791        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5792            return;
 5793        };
 5794        let on_release_callback = Box::new(move |cx: &mut App| {
 5795            window_handle
 5796                .update(cx, |_, window, cx| {
 5797                    workspace
 5798                        .update(cx, |workspace, cx| {
 5799                            workspace.dirty_items.remove(&item_id);
 5800                            workspace.update_window_edited(window, cx)
 5801                        })
 5802                        .ok();
 5803                })
 5804                .ok();
 5805        });
 5806
 5807        let s = item.on_release(cx, on_release_callback);
 5808        self.dirty_items.insert(item_id, s);
 5809        self.update_window_edited(window, cx);
 5810    }
 5811
 5812    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5813        if self.notifications.is_empty() {
 5814            None
 5815        } else {
 5816            Some(
 5817                div()
 5818                    .absolute()
 5819                    .right_3()
 5820                    .bottom_3()
 5821                    .w_112()
 5822                    .h_full()
 5823                    .flex()
 5824                    .flex_col()
 5825                    .justify_end()
 5826                    .gap_2()
 5827                    .children(
 5828                        self.notifications
 5829                            .iter()
 5830                            .map(|(_, notification)| notification.clone().into_any()),
 5831                    ),
 5832            )
 5833        }
 5834    }
 5835
 5836    // RPC handlers
 5837
 5838    fn active_view_for_follower(
 5839        &self,
 5840        follower_project_id: Option<u64>,
 5841        window: &mut Window,
 5842        cx: &mut Context<Self>,
 5843    ) -> Option<proto::View> {
 5844        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5845        let item = item?;
 5846        let leader_id = self
 5847            .pane_for(&*item)
 5848            .and_then(|pane| self.leader_for_pane(&pane));
 5849        let leader_peer_id = match leader_id {
 5850            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5851            Some(CollaboratorId::Agent) | None => None,
 5852        };
 5853
 5854        let item_handle = item.to_followable_item_handle(cx)?;
 5855        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5856        let variant = item_handle.to_state_proto(window, cx)?;
 5857
 5858        if item_handle.is_project_item(window, cx)
 5859            && (follower_project_id.is_none()
 5860                || follower_project_id != self.project.read(cx).remote_id())
 5861        {
 5862            return None;
 5863        }
 5864
 5865        Some(proto::View {
 5866            id: id.to_proto(),
 5867            leader_id: leader_peer_id,
 5868            variant: Some(variant),
 5869            panel_id: panel_id.map(|id| id as i32),
 5870        })
 5871    }
 5872
 5873    fn handle_follow(
 5874        &mut self,
 5875        follower_project_id: Option<u64>,
 5876        window: &mut Window,
 5877        cx: &mut Context<Self>,
 5878    ) -> proto::FollowResponse {
 5879        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5880
 5881        cx.notify();
 5882        proto::FollowResponse {
 5883            views: active_view.iter().cloned().collect(),
 5884            active_view,
 5885        }
 5886    }
 5887
 5888    fn handle_update_followers(
 5889        &mut self,
 5890        leader_id: PeerId,
 5891        message: proto::UpdateFollowers,
 5892        _window: &mut Window,
 5893        _cx: &mut Context<Self>,
 5894    ) {
 5895        self.leader_updates_tx
 5896            .unbounded_send((leader_id, message))
 5897            .ok();
 5898    }
 5899
 5900    async fn process_leader_update(
 5901        this: &WeakEntity<Self>,
 5902        leader_id: PeerId,
 5903        update: proto::UpdateFollowers,
 5904        cx: &mut AsyncWindowContext,
 5905    ) -> Result<()> {
 5906        match update.variant.context("invalid update")? {
 5907            proto::update_followers::Variant::CreateView(view) => {
 5908                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5909                let should_add_view = this.update(cx, |this, _| {
 5910                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5911                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5912                    } else {
 5913                        anyhow::Ok(false)
 5914                    }
 5915                })??;
 5916
 5917                if should_add_view {
 5918                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5919                }
 5920            }
 5921            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5922                let should_add_view = this.update(cx, |this, _| {
 5923                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5924                        state.active_view_id = update_active_view
 5925                            .view
 5926                            .as_ref()
 5927                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5928
 5929                        if state.active_view_id.is_some_and(|view_id| {
 5930                            !state.items_by_leader_view_id.contains_key(&view_id)
 5931                        }) {
 5932                            anyhow::Ok(true)
 5933                        } else {
 5934                            anyhow::Ok(false)
 5935                        }
 5936                    } else {
 5937                        anyhow::Ok(false)
 5938                    }
 5939                })??;
 5940
 5941                if should_add_view && let Some(view) = update_active_view.view {
 5942                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5943                }
 5944            }
 5945            proto::update_followers::Variant::UpdateView(update_view) => {
 5946                let variant = update_view.variant.context("missing update view variant")?;
 5947                let id = update_view.id.context("missing update view id")?;
 5948                let mut tasks = Vec::new();
 5949                this.update_in(cx, |this, window, cx| {
 5950                    let project = this.project.clone();
 5951                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5952                        let view_id = ViewId::from_proto(id.clone())?;
 5953                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5954                            tasks.push(item.view.apply_update_proto(
 5955                                &project,
 5956                                variant.clone(),
 5957                                window,
 5958                                cx,
 5959                            ));
 5960                        }
 5961                    }
 5962                    anyhow::Ok(())
 5963                })??;
 5964                try_join_all(tasks).await.log_err();
 5965            }
 5966        }
 5967        this.update_in(cx, |this, window, cx| {
 5968            this.leader_updated(leader_id, window, cx)
 5969        })?;
 5970        Ok(())
 5971    }
 5972
 5973    async fn add_view_from_leader(
 5974        this: WeakEntity<Self>,
 5975        leader_id: PeerId,
 5976        view: &proto::View,
 5977        cx: &mut AsyncWindowContext,
 5978    ) -> Result<()> {
 5979        let this = this.upgrade().context("workspace dropped")?;
 5980
 5981        let Some(id) = view.id.clone() else {
 5982            anyhow::bail!("no id for view");
 5983        };
 5984        let id = ViewId::from_proto(id)?;
 5985        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5986
 5987        let pane = this.update(cx, |this, _cx| {
 5988            let state = this
 5989                .follower_states
 5990                .get(&leader_id.into())
 5991                .context("stopped following")?;
 5992            anyhow::Ok(state.pane().clone())
 5993        })?;
 5994        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5995            let client = this.read(cx).client().clone();
 5996            pane.items().find_map(|item| {
 5997                let item = item.to_followable_item_handle(cx)?;
 5998                if item.remote_id(&client, window, cx) == Some(id) {
 5999                    Some(item)
 6000                } else {
 6001                    None
 6002                }
 6003            })
 6004        })?;
 6005        let item = if let Some(existing_item) = existing_item {
 6006            existing_item
 6007        } else {
 6008            let variant = view.variant.clone();
 6009            anyhow::ensure!(variant.is_some(), "missing view variant");
 6010
 6011            let task = cx.update(|window, cx| {
 6012                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 6013            })?;
 6014
 6015            let Some(task) = task else {
 6016                anyhow::bail!(
 6017                    "failed to construct view from leader (maybe from a different version of zed?)"
 6018                );
 6019            };
 6020
 6021            let mut new_item = task.await?;
 6022            pane.update_in(cx, |pane, window, cx| {
 6023                let mut item_to_remove = None;
 6024                for (ix, item) in pane.items().enumerate() {
 6025                    if let Some(item) = item.to_followable_item_handle(cx) {
 6026                        match new_item.dedup(item.as_ref(), window, cx) {
 6027                            Some(item::Dedup::KeepExisting) => {
 6028                                new_item =
 6029                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 6030                                break;
 6031                            }
 6032                            Some(item::Dedup::ReplaceExisting) => {
 6033                                item_to_remove = Some((ix, item.item_id()));
 6034                                break;
 6035                            }
 6036                            None => {}
 6037                        }
 6038                    }
 6039                }
 6040
 6041                if let Some((ix, id)) = item_to_remove {
 6042                    pane.remove_item(id, false, false, window, cx);
 6043                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 6044                }
 6045            })?;
 6046
 6047            new_item
 6048        };
 6049
 6050        this.update_in(cx, |this, window, cx| {
 6051            let state = this.follower_states.get_mut(&leader_id.into())?;
 6052            item.set_leader_id(Some(leader_id.into()), window, cx);
 6053            state.items_by_leader_view_id.insert(
 6054                id,
 6055                FollowerView {
 6056                    view: item,
 6057                    location: panel_id,
 6058                },
 6059            );
 6060
 6061            Some(())
 6062        })
 6063        .context("no follower state")?;
 6064
 6065        Ok(())
 6066    }
 6067
 6068    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6069        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 6070            return;
 6071        };
 6072
 6073        if let Some(agent_location) = self.project.read(cx).agent_location() {
 6074            let buffer_entity_id = agent_location.buffer.entity_id();
 6075            let view_id = ViewId {
 6076                creator: CollaboratorId::Agent,
 6077                id: buffer_entity_id.as_u64(),
 6078            };
 6079            follower_state.active_view_id = Some(view_id);
 6080
 6081            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 6082                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 6083                hash_map::Entry::Vacant(entry) => {
 6084                    let existing_view =
 6085                        follower_state
 6086                            .center_pane
 6087                            .read(cx)
 6088                            .items()
 6089                            .find_map(|item| {
 6090                                let item = item.to_followable_item_handle(cx)?;
 6091                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 6092                                    && item.project_item_model_ids(cx).as_slice()
 6093                                        == [buffer_entity_id]
 6094                                {
 6095                                    Some(item)
 6096                                } else {
 6097                                    None
 6098                                }
 6099                            });
 6100                    let view = existing_view.or_else(|| {
 6101                        agent_location.buffer.upgrade().and_then(|buffer| {
 6102                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 6103                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 6104                            })?
 6105                            .to_followable_item_handle(cx)
 6106                        })
 6107                    });
 6108
 6109                    view.map(|view| {
 6110                        entry.insert(FollowerView {
 6111                            view,
 6112                            location: None,
 6113                        })
 6114                    })
 6115                }
 6116            };
 6117
 6118            if let Some(item) = item {
 6119                item.view
 6120                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 6121                item.view
 6122                    .update_agent_location(agent_location.position, window, cx);
 6123            }
 6124        } else {
 6125            follower_state.active_view_id = None;
 6126        }
 6127
 6128        self.leader_updated(CollaboratorId::Agent, window, cx);
 6129    }
 6130
 6131    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 6132        let mut is_project_item = true;
 6133        let mut update = proto::UpdateActiveView::default();
 6134        if window.is_window_active() {
 6135            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 6136
 6137            if let Some(item) = active_item
 6138                && item.item_focus_handle(cx).contains_focused(window, cx)
 6139            {
 6140                let leader_id = self
 6141                    .pane_for(&*item)
 6142                    .and_then(|pane| self.leader_for_pane(&pane));
 6143                let leader_peer_id = match leader_id {
 6144                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 6145                    Some(CollaboratorId::Agent) | None => None,
 6146                };
 6147
 6148                if let Some(item) = item.to_followable_item_handle(cx) {
 6149                    let id = item
 6150                        .remote_id(&self.app_state.client, window, cx)
 6151                        .map(|id| id.to_proto());
 6152
 6153                    if let Some(id) = id
 6154                        && let Some(variant) = item.to_state_proto(window, cx)
 6155                    {
 6156                        let view = Some(proto::View {
 6157                            id,
 6158                            leader_id: leader_peer_id,
 6159                            variant: Some(variant),
 6160                            panel_id: panel_id.map(|id| id as i32),
 6161                        });
 6162
 6163                        is_project_item = item.is_project_item(window, cx);
 6164                        update = proto::UpdateActiveView { view };
 6165                    };
 6166                }
 6167            }
 6168        }
 6169
 6170        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 6171        if active_view_id != self.last_active_view_id.as_ref() {
 6172            self.last_active_view_id = active_view_id.cloned();
 6173            self.update_followers(
 6174                is_project_item,
 6175                proto::update_followers::Variant::UpdateActiveView(update),
 6176                window,
 6177                cx,
 6178            );
 6179        }
 6180    }
 6181
 6182    fn active_item_for_followers(
 6183        &self,
 6184        window: &mut Window,
 6185        cx: &mut App,
 6186    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6187        let mut active_item = None;
 6188        let mut panel_id = None;
 6189        for dock in self.all_docks() {
 6190            if dock.focus_handle(cx).contains_focused(window, cx)
 6191                && let Some(panel) = dock.read(cx).active_panel()
 6192                && let Some(pane) = panel.pane(cx)
 6193                && let Some(item) = pane.read(cx).active_item()
 6194            {
 6195                active_item = Some(item);
 6196                panel_id = panel.remote_id();
 6197                break;
 6198            }
 6199        }
 6200
 6201        if active_item.is_none() {
 6202            active_item = self.active_pane().read(cx).active_item();
 6203        }
 6204        (active_item, panel_id)
 6205    }
 6206
 6207    fn update_followers(
 6208        &self,
 6209        project_only: bool,
 6210        update: proto::update_followers::Variant,
 6211        _: &mut Window,
 6212        cx: &mut App,
 6213    ) -> Option<()> {
 6214        // If this update only applies to for followers in the current project,
 6215        // then skip it unless this project is shared. If it applies to all
 6216        // followers, regardless of project, then set `project_id` to none,
 6217        // indicating that it goes to all followers.
 6218        let project_id = if project_only {
 6219            Some(self.project.read(cx).remote_id()?)
 6220        } else {
 6221            None
 6222        };
 6223        self.app_state().workspace_store.update(cx, |store, cx| {
 6224            store.update_followers(project_id, update, cx)
 6225        })
 6226    }
 6227
 6228    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6229        self.follower_states.iter().find_map(|(leader_id, state)| {
 6230            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6231                Some(*leader_id)
 6232            } else {
 6233                None
 6234            }
 6235        })
 6236    }
 6237
 6238    fn leader_updated(
 6239        &mut self,
 6240        leader_id: impl Into<CollaboratorId>,
 6241        window: &mut Window,
 6242        cx: &mut Context<Self>,
 6243    ) -> Option<Box<dyn ItemHandle>> {
 6244        cx.notify();
 6245
 6246        let leader_id = leader_id.into();
 6247        let (panel_id, item) = match leader_id {
 6248            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6249            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6250        };
 6251
 6252        let state = self.follower_states.get(&leader_id)?;
 6253        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6254        let pane;
 6255        if let Some(panel_id) = panel_id {
 6256            pane = self
 6257                .activate_panel_for_proto_id(panel_id, window, cx)?
 6258                .pane(cx)?;
 6259            let state = self.follower_states.get_mut(&leader_id)?;
 6260            state.dock_pane = Some(pane.clone());
 6261        } else {
 6262            pane = state.center_pane.clone();
 6263            let state = self.follower_states.get_mut(&leader_id)?;
 6264            if let Some(dock_pane) = state.dock_pane.take() {
 6265                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6266            }
 6267        }
 6268
 6269        pane.update(cx, |pane, cx| {
 6270            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6271            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6272                pane.activate_item(index, false, false, window, cx);
 6273            } else {
 6274                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6275            }
 6276
 6277            if focus_active_item {
 6278                pane.focus_active_item(window, cx)
 6279            }
 6280        });
 6281
 6282        Some(item)
 6283    }
 6284
 6285    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6286        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6287        let active_view_id = state.active_view_id?;
 6288        Some(
 6289            state
 6290                .items_by_leader_view_id
 6291                .get(&active_view_id)?
 6292                .view
 6293                .boxed_clone(),
 6294        )
 6295    }
 6296
 6297    fn active_item_for_peer(
 6298        &self,
 6299        peer_id: PeerId,
 6300        window: &mut Window,
 6301        cx: &mut Context<Self>,
 6302    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6303        let call = self.active_call()?;
 6304        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6305        let leader_in_this_app;
 6306        let leader_in_this_project;
 6307        match participant.location {
 6308            ParticipantLocation::SharedProject { project_id } => {
 6309                leader_in_this_app = true;
 6310                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6311            }
 6312            ParticipantLocation::UnsharedProject => {
 6313                leader_in_this_app = true;
 6314                leader_in_this_project = false;
 6315            }
 6316            ParticipantLocation::External => {
 6317                leader_in_this_app = false;
 6318                leader_in_this_project = false;
 6319            }
 6320        };
 6321        let state = self.follower_states.get(&peer_id.into())?;
 6322        let mut item_to_activate = None;
 6323        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6324            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6325                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6326            {
 6327                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6328            }
 6329        } else if let Some(shared_screen) =
 6330            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6331        {
 6332            item_to_activate = Some((None, Box::new(shared_screen)));
 6333        }
 6334        item_to_activate
 6335    }
 6336
 6337    fn shared_screen_for_peer(
 6338        &self,
 6339        peer_id: PeerId,
 6340        pane: &Entity<Pane>,
 6341        window: &mut Window,
 6342        cx: &mut App,
 6343    ) -> Option<Entity<SharedScreen>> {
 6344        self.active_call()?
 6345            .create_shared_screen(peer_id, pane, window, cx)
 6346    }
 6347
 6348    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6349        if window.is_window_active() {
 6350            self.update_active_view_for_followers(window, cx);
 6351
 6352            if let Some(database_id) = self.database_id {
 6353                let db = WorkspaceDb::global(cx);
 6354                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6355                    .detach();
 6356            }
 6357        } else {
 6358            for pane in &self.panes {
 6359                pane.update(cx, |pane, cx| {
 6360                    if let Some(item) = pane.active_item() {
 6361                        item.workspace_deactivated(window, cx);
 6362                    }
 6363                    for item in pane.items() {
 6364                        if matches!(
 6365                            item.workspace_settings(cx).autosave,
 6366                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6367                        ) {
 6368                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6369                                .detach_and_log_err(cx);
 6370                        }
 6371                    }
 6372                });
 6373            }
 6374        }
 6375    }
 6376
 6377    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6378        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6379    }
 6380
 6381    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6382        self.active_call.as_ref().map(|(call, _)| call.clone())
 6383    }
 6384
 6385    fn on_active_call_event(
 6386        &mut self,
 6387        event: &ActiveCallEvent,
 6388        window: &mut Window,
 6389        cx: &mut Context<Self>,
 6390    ) {
 6391        match event {
 6392            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6393            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6394                self.leader_updated(participant_id, window, cx);
 6395            }
 6396        }
 6397    }
 6398
 6399    pub fn database_id(&self) -> Option<WorkspaceId> {
 6400        self.database_id
 6401    }
 6402
 6403    #[cfg(any(test, feature = "test-support"))]
 6404    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6405        self.database_id = Some(id);
 6406    }
 6407
 6408    pub fn session_id(&self) -> Option<String> {
 6409        self.session_id.clone()
 6410    }
 6411
 6412    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6413        let Some(display) = window.display(cx) else {
 6414            return Task::ready(());
 6415        };
 6416        let Ok(display_uuid) = display.uuid() else {
 6417            return Task::ready(());
 6418        };
 6419
 6420        let window_bounds = window.inner_window_bounds();
 6421        let database_id = self.database_id;
 6422        let has_paths = !self.root_paths(cx).is_empty();
 6423        let db = WorkspaceDb::global(cx);
 6424        let kvp = db::kvp::KeyValueStore::global(cx);
 6425
 6426        cx.background_executor().spawn(async move {
 6427            if !has_paths {
 6428                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6429                    .await
 6430                    .log_err();
 6431            }
 6432            if let Some(database_id) = database_id {
 6433                db.set_window_open_status(
 6434                    database_id,
 6435                    SerializedWindowBounds(window_bounds),
 6436                    display_uuid,
 6437                )
 6438                .await
 6439                .log_err();
 6440            } else {
 6441                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6442                    .await
 6443                    .log_err();
 6444            }
 6445        })
 6446    }
 6447
 6448    /// Bypass the 200ms serialization throttle and write workspace state to
 6449    /// the DB immediately. Returns a task the caller can await to ensure the
 6450    /// write completes. Used by the quit handler so the most recent state
 6451    /// isn't lost to a pending throttle timer when the process exits.
 6452    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6453        self._schedule_serialize_workspace.take();
 6454        self._serialize_workspace_task.take();
 6455        self.bounds_save_task_queued.take();
 6456
 6457        let bounds_task = self.save_window_bounds(window, cx);
 6458        let serialize_task = self.serialize_workspace_internal(window, cx);
 6459        cx.spawn(async move |_| {
 6460            bounds_task.await;
 6461            serialize_task.await;
 6462        })
 6463    }
 6464
 6465    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6466        let project = self.project().read(cx);
 6467        project
 6468            .visible_worktrees(cx)
 6469            .map(|worktree| worktree.read(cx).abs_path())
 6470            .collect::<Vec<_>>()
 6471    }
 6472
 6473    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6474        match member {
 6475            Member::Axis(PaneAxis { members, .. }) => {
 6476                for child in members.iter() {
 6477                    self.remove_panes(child.clone(), window, cx)
 6478                }
 6479            }
 6480            Member::Pane(pane) => {
 6481                self.force_remove_pane(&pane, &None, window, cx);
 6482            }
 6483        }
 6484    }
 6485
 6486    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6487        self.session_id.take();
 6488        self.serialize_workspace_internal(window, cx)
 6489    }
 6490
 6491    fn force_remove_pane(
 6492        &mut self,
 6493        pane: &Entity<Pane>,
 6494        focus_on: &Option<Entity<Pane>>,
 6495        window: &mut Window,
 6496        cx: &mut Context<Workspace>,
 6497    ) {
 6498        self.panes.retain(|p| p != pane);
 6499        if let Some(focus_on) = focus_on {
 6500            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6501        } else if self.active_pane() == pane {
 6502            self.panes
 6503                .last()
 6504                .unwrap()
 6505                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6506        }
 6507        if self.last_active_center_pane == Some(pane.downgrade()) {
 6508            self.last_active_center_pane = None;
 6509        }
 6510        cx.notify();
 6511    }
 6512
 6513    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6514        if self._schedule_serialize_workspace.is_none() {
 6515            self._schedule_serialize_workspace =
 6516                Some(cx.spawn_in(window, async move |this, cx| {
 6517                    cx.background_executor()
 6518                        .timer(SERIALIZATION_THROTTLE_TIME)
 6519                        .await;
 6520                    this.update_in(cx, |this, window, cx| {
 6521                        this._serialize_workspace_task =
 6522                            Some(this.serialize_workspace_internal(window, cx));
 6523                        this._schedule_serialize_workspace.take();
 6524                    })
 6525                    .log_err();
 6526                }));
 6527        }
 6528    }
 6529
 6530    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6531        let Some(database_id) = self.database_id() else {
 6532            return Task::ready(());
 6533        };
 6534
 6535        fn serialize_pane_handle(
 6536            pane_handle: &Entity<Pane>,
 6537            window: &mut Window,
 6538            cx: &mut App,
 6539        ) -> SerializedPane {
 6540            let (items, active, pinned_count) = {
 6541                let pane = pane_handle.read(cx);
 6542                let active_item_id = pane.active_item().map(|item| item.item_id());
 6543                (
 6544                    pane.items()
 6545                        .filter_map(|handle| {
 6546                            let handle = handle.to_serializable_item_handle(cx)?;
 6547
 6548                            Some(SerializedItem {
 6549                                kind: Arc::from(handle.serialized_item_kind()),
 6550                                item_id: handle.item_id().as_u64(),
 6551                                active: Some(handle.item_id()) == active_item_id,
 6552                                preview: pane.is_active_preview_item(handle.item_id()),
 6553                            })
 6554                        })
 6555                        .collect::<Vec<_>>(),
 6556                    pane.has_focus(window, cx),
 6557                    pane.pinned_count(),
 6558                )
 6559            };
 6560
 6561            SerializedPane::new(items, active, pinned_count)
 6562        }
 6563
 6564        fn build_serialized_pane_group(
 6565            pane_group: &Member,
 6566            window: &mut Window,
 6567            cx: &mut App,
 6568        ) -> SerializedPaneGroup {
 6569            match pane_group {
 6570                Member::Axis(PaneAxis {
 6571                    axis,
 6572                    members,
 6573                    flexes,
 6574                    bounding_boxes: _,
 6575                }) => SerializedPaneGroup::Group {
 6576                    axis: SerializedAxis(*axis),
 6577                    children: members
 6578                        .iter()
 6579                        .map(|member| build_serialized_pane_group(member, window, cx))
 6580                        .collect::<Vec<_>>(),
 6581                    flexes: Some(flexes.lock().clone()),
 6582                },
 6583                Member::Pane(pane_handle) => {
 6584                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6585                }
 6586            }
 6587        }
 6588
 6589        fn build_serialized_docks(
 6590            this: &Workspace,
 6591            window: &mut Window,
 6592            cx: &mut App,
 6593        ) -> DockStructure {
 6594            this.capture_dock_state(window, cx)
 6595        }
 6596
 6597        match self.workspace_location(cx) {
 6598            WorkspaceLocation::Location(location, paths) => {
 6599                let breakpoints = self.project.update(cx, |project, cx| {
 6600                    project
 6601                        .breakpoint_store()
 6602                        .read(cx)
 6603                        .all_source_breakpoints(cx)
 6604                });
 6605                let user_toolchains = self
 6606                    .project
 6607                    .read(cx)
 6608                    .user_toolchains(cx)
 6609                    .unwrap_or_default();
 6610
 6611                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6612                let docks = build_serialized_docks(self, window, cx);
 6613                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6614
 6615                let serialized_workspace = SerializedWorkspace {
 6616                    id: database_id,
 6617                    location,
 6618                    paths,
 6619                    center_group,
 6620                    window_bounds,
 6621                    display: Default::default(),
 6622                    docks,
 6623                    centered_layout: self.centered_layout,
 6624                    session_id: self.session_id.clone(),
 6625                    breakpoints,
 6626                    window_id: Some(window.window_handle().window_id().as_u64()),
 6627                    user_toolchains,
 6628                };
 6629
 6630                let db = WorkspaceDb::global(cx);
 6631                window.spawn(cx, async move |_| {
 6632                    db.save_workspace(serialized_workspace).await;
 6633                })
 6634            }
 6635            WorkspaceLocation::DetachFromSession => {
 6636                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6637                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6638                // Save dock state for empty local workspaces
 6639                let docks = build_serialized_docks(self, window, cx);
 6640                let db = WorkspaceDb::global(cx);
 6641                let kvp = db::kvp::KeyValueStore::global(cx);
 6642                window.spawn(cx, async move |_| {
 6643                    db.set_window_open_status(
 6644                        database_id,
 6645                        window_bounds,
 6646                        display.unwrap_or_default(),
 6647                    )
 6648                    .await
 6649                    .log_err();
 6650                    db.set_session_id(database_id, None).await.log_err();
 6651                    persistence::write_default_dock_state(&kvp, docks)
 6652                        .await
 6653                        .log_err();
 6654                })
 6655            }
 6656            WorkspaceLocation::None => {
 6657                // Save dock state for empty non-local workspaces
 6658                let docks = build_serialized_docks(self, window, cx);
 6659                let kvp = db::kvp::KeyValueStore::global(cx);
 6660                window.spawn(cx, async move |_| {
 6661                    persistence::write_default_dock_state(&kvp, docks)
 6662                        .await
 6663                        .log_err();
 6664                })
 6665            }
 6666        }
 6667    }
 6668
 6669    fn has_any_items_open(&self, cx: &App) -> bool {
 6670        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6671    }
 6672
 6673    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6674        let paths = PathList::new(&self.root_paths(cx));
 6675        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6676            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6677        } else if self.project.read(cx).is_local() {
 6678            if !paths.is_empty() || self.has_any_items_open(cx) {
 6679                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6680            } else {
 6681                WorkspaceLocation::DetachFromSession
 6682            }
 6683        } else {
 6684            WorkspaceLocation::None
 6685        }
 6686    }
 6687
 6688    fn update_history(&self, cx: &mut App) {
 6689        let Some(id) = self.database_id() else {
 6690            return;
 6691        };
 6692        if !self.project.read(cx).is_local() {
 6693            return;
 6694        }
 6695        if let Some(manager) = HistoryManager::global(cx) {
 6696            let paths = PathList::new(&self.root_paths(cx));
 6697            manager.update(cx, |this, cx| {
 6698                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6699            });
 6700        }
 6701    }
 6702
 6703    async fn serialize_items(
 6704        this: &WeakEntity<Self>,
 6705        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6706        cx: &mut AsyncWindowContext,
 6707    ) -> Result<()> {
 6708        const CHUNK_SIZE: usize = 200;
 6709
 6710        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6711
 6712        while let Some(items_received) = serializable_items.next().await {
 6713            let unique_items =
 6714                items_received
 6715                    .into_iter()
 6716                    .fold(HashMap::default(), |mut acc, item| {
 6717                        acc.entry(item.item_id()).or_insert(item);
 6718                        acc
 6719                    });
 6720
 6721            // We use into_iter() here so that the references to the items are moved into
 6722            // the tasks and not kept alive while we're sleeping.
 6723            for (_, item) in unique_items.into_iter() {
 6724                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6725                    item.serialize(workspace, false, window, cx)
 6726                }) {
 6727                    cx.background_spawn(async move { task.await.log_err() })
 6728                        .detach();
 6729                }
 6730            }
 6731
 6732            cx.background_executor()
 6733                .timer(SERIALIZATION_THROTTLE_TIME)
 6734                .await;
 6735        }
 6736
 6737        Ok(())
 6738    }
 6739
 6740    pub(crate) fn enqueue_item_serialization(
 6741        &mut self,
 6742        item: Box<dyn SerializableItemHandle>,
 6743    ) -> Result<()> {
 6744        self.serializable_items_tx
 6745            .unbounded_send(item)
 6746            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6747    }
 6748
 6749    pub(crate) fn load_workspace(
 6750        serialized_workspace: SerializedWorkspace,
 6751        paths_to_open: Vec<Option<ProjectPath>>,
 6752        window: &mut Window,
 6753        cx: &mut Context<Workspace>,
 6754    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6755        cx.spawn_in(window, async move |workspace, cx| {
 6756            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6757
 6758            let mut center_group = None;
 6759            let mut center_items = None;
 6760
 6761            // Traverse the splits tree and add to things
 6762            if let Some((group, active_pane, items)) = serialized_workspace
 6763                .center_group
 6764                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6765                .await
 6766            {
 6767                center_items = Some(items);
 6768                center_group = Some((group, active_pane))
 6769            }
 6770
 6771            let mut items_by_project_path = HashMap::default();
 6772            let mut item_ids_by_kind = HashMap::default();
 6773            let mut all_deserialized_items = Vec::default();
 6774            cx.update(|_, cx| {
 6775                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6776                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6777                        item_ids_by_kind
 6778                            .entry(serializable_item_handle.serialized_item_kind())
 6779                            .or_insert(Vec::new())
 6780                            .push(item.item_id().as_u64() as ItemId);
 6781                    }
 6782
 6783                    if let Some(project_path) = item.project_path(cx) {
 6784                        items_by_project_path.insert(project_path, item.clone());
 6785                    }
 6786                    all_deserialized_items.push(item);
 6787                }
 6788            })?;
 6789
 6790            let opened_items = paths_to_open
 6791                .into_iter()
 6792                .map(|path_to_open| {
 6793                    path_to_open
 6794                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6795                })
 6796                .collect::<Vec<_>>();
 6797
 6798            // Remove old panes from workspace panes list
 6799            workspace.update_in(cx, |workspace, window, cx| {
 6800                if let Some((center_group, active_pane)) = center_group {
 6801                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6802
 6803                    // Swap workspace center group
 6804                    workspace.center = PaneGroup::with_root(center_group);
 6805                    workspace.center.set_is_center(true);
 6806                    workspace.center.mark_positions(cx);
 6807
 6808                    if let Some(active_pane) = active_pane {
 6809                        workspace.set_active_pane(&active_pane, window, cx);
 6810                        cx.focus_self(window);
 6811                    } else {
 6812                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6813                    }
 6814                }
 6815
 6816                let docks = serialized_workspace.docks;
 6817
 6818                for (dock, serialized_dock) in [
 6819                    (&mut workspace.right_dock, docks.right),
 6820                    (&mut workspace.left_dock, docks.left),
 6821                    (&mut workspace.bottom_dock, docks.bottom),
 6822                ]
 6823                .iter_mut()
 6824                {
 6825                    dock.update(cx, |dock, cx| {
 6826                        dock.serialized_dock = Some(serialized_dock.clone());
 6827                        dock.restore_state(window, cx);
 6828                    });
 6829                }
 6830
 6831                cx.notify();
 6832            })?;
 6833
 6834            let _ = project
 6835                .update(cx, |project, cx| {
 6836                    project
 6837                        .breakpoint_store()
 6838                        .update(cx, |breakpoint_store, cx| {
 6839                            breakpoint_store
 6840                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6841                        })
 6842                })
 6843                .await;
 6844
 6845            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6846            // after loading the items, we might have different items and in order to avoid
 6847            // the database filling up, we delete items that haven't been loaded now.
 6848            //
 6849            // The items that have been loaded, have been saved after they've been added to the workspace.
 6850            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6851                item_ids_by_kind
 6852                    .into_iter()
 6853                    .map(|(item_kind, loaded_items)| {
 6854                        SerializableItemRegistry::cleanup(
 6855                            item_kind,
 6856                            serialized_workspace.id,
 6857                            loaded_items,
 6858                            window,
 6859                            cx,
 6860                        )
 6861                        .log_err()
 6862                    })
 6863                    .collect::<Vec<_>>()
 6864            })?;
 6865
 6866            futures::future::join_all(clean_up_tasks).await;
 6867
 6868            workspace
 6869                .update_in(cx, |workspace, window, cx| {
 6870                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6871                    workspace.serialize_workspace_internal(window, cx).detach();
 6872
 6873                    // Ensure that we mark the window as edited if we did load dirty items
 6874                    workspace.update_window_edited(window, cx);
 6875                })
 6876                .ok();
 6877
 6878            Ok(opened_items)
 6879        })
 6880    }
 6881
 6882    pub fn key_context(&self, cx: &App) -> KeyContext {
 6883        let mut context = KeyContext::new_with_defaults();
 6884        context.add("Workspace");
 6885        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6886        if let Some(status) = self
 6887            .debugger_provider
 6888            .as_ref()
 6889            .and_then(|provider| provider.active_thread_state(cx))
 6890        {
 6891            match status {
 6892                ThreadStatus::Running | ThreadStatus::Stepping => {
 6893                    context.add("debugger_running");
 6894                }
 6895                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6896                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6897            }
 6898        }
 6899
 6900        if self.left_dock.read(cx).is_open() {
 6901            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6902                context.set("left_dock", active_panel.panel_key());
 6903            }
 6904        }
 6905
 6906        if self.right_dock.read(cx).is_open() {
 6907            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6908                context.set("right_dock", active_panel.panel_key());
 6909            }
 6910        }
 6911
 6912        if self.bottom_dock.read(cx).is_open() {
 6913            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6914                context.set("bottom_dock", active_panel.panel_key());
 6915            }
 6916        }
 6917
 6918        context
 6919    }
 6920
 6921    /// Multiworkspace uses this to add workspace action handling to itself
 6922    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6923        self.add_workspace_actions_listeners(div, window, cx)
 6924            .on_action(cx.listener(
 6925                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6926                    for action in &action_sequence.0 {
 6927                        window.dispatch_action(action.boxed_clone(), cx);
 6928                    }
 6929                },
 6930            ))
 6931            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6932            .on_action(cx.listener(Self::close_all_items_and_panes))
 6933            .on_action(cx.listener(Self::close_item_in_all_panes))
 6934            .on_action(cx.listener(Self::save_all))
 6935            .on_action(cx.listener(Self::send_keystrokes))
 6936            .on_action(cx.listener(Self::add_folder_to_project))
 6937            .on_action(cx.listener(Self::follow_next_collaborator))
 6938            .on_action(cx.listener(Self::activate_pane_at_index))
 6939            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6940            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6941            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6942            .on_action(cx.listener(Self::toggle_theme_mode))
 6943            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6944                let pane = workspace.active_pane().clone();
 6945                workspace.unfollow_in_pane(&pane, window, cx);
 6946            }))
 6947            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6948                workspace
 6949                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6950                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6951            }))
 6952            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6953                workspace
 6954                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6955                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6956            }))
 6957            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6958                workspace
 6959                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6960                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6961            }))
 6962            .on_action(
 6963                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6964                    workspace.activate_previous_pane(window, cx)
 6965                }),
 6966            )
 6967            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6968                workspace.activate_next_pane(window, cx)
 6969            }))
 6970            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6971                workspace.activate_last_pane(window, cx)
 6972            }))
 6973            .on_action(
 6974                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6975                    workspace.activate_next_window(cx)
 6976                }),
 6977            )
 6978            .on_action(
 6979                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6980                    workspace.activate_previous_window(cx)
 6981                }),
 6982            )
 6983            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6984                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6985            }))
 6986            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6987                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6988            }))
 6989            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6990                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6991            }))
 6992            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6993                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6994            }))
 6995            .on_action(cx.listener(
 6996                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6997                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6998                },
 6999            ))
 7000            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 7001                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 7002            }))
 7003            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 7004                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 7005            }))
 7006            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 7007                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 7008            }))
 7009            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 7010                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 7011            }))
 7012            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 7013                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 7014                    SplitDirection::Down,
 7015                    SplitDirection::Up,
 7016                    SplitDirection::Right,
 7017                    SplitDirection::Left,
 7018                ];
 7019                for dir in DIRECTION_PRIORITY {
 7020                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 7021                        workspace.swap_pane_in_direction(dir, cx);
 7022                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 7023                        break;
 7024                    }
 7025                }
 7026            }))
 7027            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 7028                workspace.move_pane_to_border(SplitDirection::Left, cx)
 7029            }))
 7030            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 7031                workspace.move_pane_to_border(SplitDirection::Right, cx)
 7032            }))
 7033            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 7034                workspace.move_pane_to_border(SplitDirection::Up, cx)
 7035            }))
 7036            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 7037                workspace.move_pane_to_border(SplitDirection::Down, cx)
 7038            }))
 7039            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 7040                this.toggle_dock(DockPosition::Left, window, cx);
 7041            }))
 7042            .on_action(cx.listener(
 7043                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 7044                    workspace.toggle_dock(DockPosition::Right, window, cx);
 7045                },
 7046            ))
 7047            .on_action(cx.listener(
 7048                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 7049                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 7050                },
 7051            ))
 7052            .on_action(cx.listener(
 7053                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 7054                    if !workspace.close_active_dock(window, cx) {
 7055                        cx.propagate();
 7056                    }
 7057                },
 7058            ))
 7059            .on_action(
 7060                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 7061                    workspace.close_all_docks(window, cx);
 7062                }),
 7063            )
 7064            .on_action(cx.listener(Self::toggle_all_docks))
 7065            .on_action(cx.listener(
 7066                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 7067                    workspace.clear_all_notifications(cx);
 7068                },
 7069            ))
 7070            .on_action(cx.listener(
 7071                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 7072                    workspace.clear_navigation_history(window, cx);
 7073                },
 7074            ))
 7075            .on_action(cx.listener(
 7076                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 7077                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 7078                        workspace.suppress_notification(&notification_id, cx);
 7079                    }
 7080                },
 7081            ))
 7082            .on_action(cx.listener(
 7083                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 7084                    workspace.show_worktree_trust_security_modal(true, window, cx);
 7085                },
 7086            ))
 7087            .on_action(
 7088                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 7089                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 7090                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 7091                            trusted_worktrees.clear_trusted_paths()
 7092                        });
 7093                        let db = WorkspaceDb::global(cx);
 7094                        cx.spawn(async move |_, cx| {
 7095                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 7096                                cx.update(|cx| reload(cx));
 7097                            }
 7098                        })
 7099                        .detach();
 7100                    }
 7101                }),
 7102            )
 7103            .on_action(cx.listener(
 7104                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 7105                    workspace.reopen_closed_item(window, cx).detach();
 7106                },
 7107            ))
 7108            .on_action(cx.listener(
 7109                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 7110                    for dock in workspace.all_docks() {
 7111                        if dock.focus_handle(cx).contains_focused(window, cx) {
 7112                            let panel = dock.read(cx).active_panel().cloned();
 7113                            if let Some(panel) = panel {
 7114                                dock.update(cx, |dock, cx| {
 7115                                    dock.set_panel_size_state(
 7116                                        panel.as_ref(),
 7117                                        dock::PanelSizeState::default(),
 7118                                        cx,
 7119                                    );
 7120                                });
 7121                            }
 7122                            return;
 7123                        }
 7124                    }
 7125                },
 7126            ))
 7127            .on_action(cx.listener(
 7128                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 7129                    for dock in workspace.all_docks() {
 7130                        let panel = dock.read(cx).visible_panel().cloned();
 7131                        if let Some(panel) = panel {
 7132                            dock.update(cx, |dock, cx| {
 7133                                dock.set_panel_size_state(
 7134                                    panel.as_ref(),
 7135                                    dock::PanelSizeState::default(),
 7136                                    cx,
 7137                                );
 7138                            });
 7139                        }
 7140                    }
 7141                },
 7142            ))
 7143            .on_action(cx.listener(
 7144                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 7145                    adjust_active_dock_size_by_px(
 7146                        px_with_ui_font_fallback(act.px, cx),
 7147                        workspace,
 7148                        window,
 7149                        cx,
 7150                    );
 7151                },
 7152            ))
 7153            .on_action(cx.listener(
 7154                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 7155                    adjust_active_dock_size_by_px(
 7156                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7157                        workspace,
 7158                        window,
 7159                        cx,
 7160                    );
 7161                },
 7162            ))
 7163            .on_action(cx.listener(
 7164                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 7165                    adjust_open_docks_size_by_px(
 7166                        px_with_ui_font_fallback(act.px, cx),
 7167                        workspace,
 7168                        window,
 7169                        cx,
 7170                    );
 7171                },
 7172            ))
 7173            .on_action(cx.listener(
 7174                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 7175                    adjust_open_docks_size_by_px(
 7176                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7177                        workspace,
 7178                        window,
 7179                        cx,
 7180                    );
 7181                },
 7182            ))
 7183            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7184            .on_action(cx.listener(
 7185                |workspace: &mut Workspace, action: &pane::ActivateNextItem, window, cx| {
 7186                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7187                        let dock = active_dock.read(cx);
 7188                        if let Some(active_panel) = dock.active_panel() {
 7189                            if active_panel.pane(cx).is_none() {
 7190                                let mut recent_pane: Option<Entity<Pane>> = None;
 7191                                let mut recent_timestamp = 0;
 7192                                for pane_handle in workspace.panes() {
 7193                                    let pane = pane_handle.read(cx);
 7194                                    for entry in pane.activation_history() {
 7195                                        if entry.timestamp > recent_timestamp {
 7196                                            recent_timestamp = entry.timestamp;
 7197                                            recent_pane = Some(pane_handle.clone());
 7198                                        }
 7199                                    }
 7200                                }
 7201
 7202                                if let Some(pane) = recent_pane {
 7203                                    let wrap_around = action.wrap_around;
 7204                                    pane.update(cx, |pane, cx| {
 7205                                        let current_index = pane.active_item_index();
 7206                                        let items_len = pane.items_len();
 7207                                        if items_len > 0 {
 7208                                            let next_index = if current_index + 1 < items_len {
 7209                                                current_index + 1
 7210                                            } else if wrap_around {
 7211                                                0
 7212                                            } else {
 7213                                                return;
 7214                                            };
 7215                                            pane.activate_item(
 7216                                                next_index, false, false, window, cx,
 7217                                            );
 7218                                        }
 7219                                    });
 7220                                    return;
 7221                                }
 7222                            }
 7223                        }
 7224                    }
 7225                    cx.propagate();
 7226                },
 7227            ))
 7228            .on_action(cx.listener(
 7229                |workspace: &mut Workspace, action: &pane::ActivatePreviousItem, window, cx| {
 7230                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7231                        let dock = active_dock.read(cx);
 7232                        if let Some(active_panel) = dock.active_panel() {
 7233                            if active_panel.pane(cx).is_none() {
 7234                                let mut recent_pane: Option<Entity<Pane>> = None;
 7235                                let mut recent_timestamp = 0;
 7236                                for pane_handle in workspace.panes() {
 7237                                    let pane = pane_handle.read(cx);
 7238                                    for entry in pane.activation_history() {
 7239                                        if entry.timestamp > recent_timestamp {
 7240                                            recent_timestamp = entry.timestamp;
 7241                                            recent_pane = Some(pane_handle.clone());
 7242                                        }
 7243                                    }
 7244                                }
 7245
 7246                                if let Some(pane) = recent_pane {
 7247                                    let wrap_around = action.wrap_around;
 7248                                    pane.update(cx, |pane, cx| {
 7249                                        let current_index = pane.active_item_index();
 7250                                        let items_len = pane.items_len();
 7251                                        if items_len > 0 {
 7252                                            let prev_index = if current_index > 0 {
 7253                                                current_index - 1
 7254                                            } else if wrap_around {
 7255                                                items_len.saturating_sub(1)
 7256                                            } else {
 7257                                                return;
 7258                                            };
 7259                                            pane.activate_item(
 7260                                                prev_index, false, false, window, cx,
 7261                                            );
 7262                                        }
 7263                                    });
 7264                                    return;
 7265                                }
 7266                            }
 7267                        }
 7268                    }
 7269                    cx.propagate();
 7270                },
 7271            ))
 7272            .on_action(cx.listener(
 7273                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7274                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7275                        let dock = active_dock.read(cx);
 7276                        if let Some(active_panel) = dock.active_panel() {
 7277                            if active_panel.pane(cx).is_none() {
 7278                                let active_pane = workspace.active_pane().clone();
 7279                                active_pane.update(cx, |pane, cx| {
 7280                                    pane.close_active_item(action, window, cx)
 7281                                        .detach_and_log_err(cx);
 7282                                });
 7283                                return;
 7284                            }
 7285                        }
 7286                    }
 7287                    cx.propagate();
 7288                },
 7289            ))
 7290            .on_action(
 7291                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7292                    let pane = workspace.active_pane().clone();
 7293                    if let Some(item) = pane.read(cx).active_item() {
 7294                        item.toggle_read_only(window, cx);
 7295                    }
 7296                }),
 7297            )
 7298            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7299                workspace.focus_center_pane(window, cx);
 7300            }))
 7301            .on_action(cx.listener(Workspace::cancel))
 7302    }
 7303
 7304    #[cfg(any(test, feature = "test-support"))]
 7305    pub fn set_random_database_id(&mut self) {
 7306        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7307    }
 7308
 7309    #[cfg(any(test, feature = "test-support"))]
 7310    pub(crate) fn test_new(
 7311        project: Entity<Project>,
 7312        window: &mut Window,
 7313        cx: &mut Context<Self>,
 7314    ) -> Self {
 7315        use node_runtime::NodeRuntime;
 7316        use session::Session;
 7317
 7318        let client = project.read(cx).client();
 7319        let user_store = project.read(cx).user_store();
 7320        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7321        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7322        window.activate_window();
 7323        let app_state = Arc::new(AppState {
 7324            languages: project.read(cx).languages().clone(),
 7325            workspace_store,
 7326            client,
 7327            user_store,
 7328            fs: project.read(cx).fs().clone(),
 7329            build_window_options: |_, _| Default::default(),
 7330            node_runtime: NodeRuntime::unavailable(),
 7331            session,
 7332        });
 7333        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7334        workspace
 7335            .active_pane
 7336            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7337        workspace
 7338    }
 7339
 7340    pub fn register_action<A: Action>(
 7341        &mut self,
 7342        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7343    ) -> &mut Self {
 7344        let callback = Arc::new(callback);
 7345
 7346        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7347            let callback = callback.clone();
 7348            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7349                (callback)(workspace, event, window, cx)
 7350            }))
 7351        }));
 7352        self
 7353    }
 7354    pub fn register_action_renderer(
 7355        &mut self,
 7356        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7357    ) -> &mut Self {
 7358        self.workspace_actions.push(Box::new(callback));
 7359        self
 7360    }
 7361
 7362    fn add_workspace_actions_listeners(
 7363        &self,
 7364        mut div: Div,
 7365        window: &mut Window,
 7366        cx: &mut Context<Self>,
 7367    ) -> Div {
 7368        for action in self.workspace_actions.iter() {
 7369            div = (action)(div, self, window, cx)
 7370        }
 7371        div
 7372    }
 7373
 7374    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7375        self.modal_layer.read(cx).has_active_modal()
 7376    }
 7377
 7378    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7379        self.modal_layer
 7380            .read(cx)
 7381            .is_active_modal_command_palette(cx)
 7382    }
 7383
 7384    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7385        self.modal_layer.read(cx).active_modal()
 7386    }
 7387
 7388    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7389    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7390    /// If no modal is active, the new modal will be shown.
 7391    ///
 7392    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7393    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7394    /// will not be shown.
 7395    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7396    where
 7397        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7398    {
 7399        self.modal_layer.update(cx, |modal_layer, cx| {
 7400            modal_layer.toggle_modal(window, cx, build)
 7401        })
 7402    }
 7403
 7404    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7405        self.modal_layer
 7406            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7407    }
 7408
 7409    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7410        self.toast_layer
 7411            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7412    }
 7413
 7414    pub fn toggle_centered_layout(
 7415        &mut self,
 7416        _: &ToggleCenteredLayout,
 7417        _: &mut Window,
 7418        cx: &mut Context<Self>,
 7419    ) {
 7420        self.centered_layout = !self.centered_layout;
 7421        if let Some(database_id) = self.database_id() {
 7422            let db = WorkspaceDb::global(cx);
 7423            let centered_layout = self.centered_layout;
 7424            cx.background_spawn(async move {
 7425                db.set_centered_layout(database_id, centered_layout).await
 7426            })
 7427            .detach_and_log_err(cx);
 7428        }
 7429        cx.notify();
 7430    }
 7431
 7432    fn adjust_padding(padding: Option<f32>) -> f32 {
 7433        padding
 7434            .unwrap_or(CenteredPaddingSettings::default().0)
 7435            .clamp(
 7436                CenteredPaddingSettings::MIN_PADDING,
 7437                CenteredPaddingSettings::MAX_PADDING,
 7438            )
 7439    }
 7440
 7441    fn render_dock(
 7442        &self,
 7443        position: DockPosition,
 7444        dock: &Entity<Dock>,
 7445        window: &mut Window,
 7446        cx: &mut App,
 7447    ) -> Option<Div> {
 7448        if self.zoomed_position == Some(position) {
 7449            return None;
 7450        }
 7451
 7452        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7453            let pane = panel.pane(cx)?;
 7454            let follower_states = &self.follower_states;
 7455            leader_border_for_pane(follower_states, &pane, window, cx)
 7456        });
 7457
 7458        let mut container = div()
 7459            .flex()
 7460            .overflow_hidden()
 7461            .flex_none()
 7462            .child(dock.clone())
 7463            .children(leader_border);
 7464
 7465        // Apply sizing only when the dock is open. When closed the dock is still
 7466        // included in the element tree so its focus handle remains mounted — without
 7467        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7468        let dock = dock.read(cx);
 7469        if let Some(panel) = dock.visible_panel() {
 7470            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7471            if position.axis() == Axis::Horizontal {
 7472                let use_flexible = panel.has_flexible_size(window, cx);
 7473                let flex_grow = if use_flexible {
 7474                    size_state
 7475                        .and_then(|state| state.flex)
 7476                        .or_else(|| self.default_dock_flex(position))
 7477                } else {
 7478                    None
 7479                };
 7480                if let Some(grow) = flex_grow {
 7481                    let grow = grow.max(0.001);
 7482                    let style = container.style();
 7483                    style.flex_grow = Some(grow);
 7484                    style.flex_shrink = Some(1.0);
 7485                    style.flex_basis = Some(relative(0.).into());
 7486                } else {
 7487                    let size = size_state
 7488                        .and_then(|state| state.size)
 7489                        .unwrap_or_else(|| panel.default_size(window, cx));
 7490                    container = container.w(size);
 7491                }
 7492            } else {
 7493                let size = size_state
 7494                    .and_then(|state| state.size)
 7495                    .unwrap_or_else(|| panel.default_size(window, cx));
 7496                container = container.h(size);
 7497            }
 7498        }
 7499
 7500        Some(container)
 7501    }
 7502
 7503    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7504        window
 7505            .root::<MultiWorkspace>()
 7506            .flatten()
 7507            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7508    }
 7509
 7510    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7511        self.zoomed.as_ref()
 7512    }
 7513
 7514    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7515        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7516            return;
 7517        };
 7518        let windows = cx.windows();
 7519        let next_window =
 7520            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7521                || {
 7522                    windows
 7523                        .iter()
 7524                        .cycle()
 7525                        .skip_while(|window| window.window_id() != current_window_id)
 7526                        .nth(1)
 7527                },
 7528            );
 7529
 7530        if let Some(window) = next_window {
 7531            window
 7532                .update(cx, |_, window, _| window.activate_window())
 7533                .ok();
 7534        }
 7535    }
 7536
 7537    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7538        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7539            return;
 7540        };
 7541        let windows = cx.windows();
 7542        let prev_window =
 7543            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7544                || {
 7545                    windows
 7546                        .iter()
 7547                        .rev()
 7548                        .cycle()
 7549                        .skip_while(|window| window.window_id() != current_window_id)
 7550                        .nth(1)
 7551                },
 7552            );
 7553
 7554        if let Some(window) = prev_window {
 7555            window
 7556                .update(cx, |_, window, _| window.activate_window())
 7557                .ok();
 7558        }
 7559    }
 7560
 7561    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7562        if cx.stop_active_drag(window) {
 7563        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7564            dismiss_app_notification(&notification_id, cx);
 7565        } else {
 7566            cx.propagate();
 7567        }
 7568    }
 7569
 7570    fn resize_dock(
 7571        &mut self,
 7572        dock_pos: DockPosition,
 7573        new_size: Pixels,
 7574        window: &mut Window,
 7575        cx: &mut Context<Self>,
 7576    ) {
 7577        match dock_pos {
 7578            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7579            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7580            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7581        }
 7582    }
 7583
 7584    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7585        let workspace_width = self.bounds.size.width;
 7586        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7587
 7588        self.right_dock.read_with(cx, |right_dock, cx| {
 7589            let right_dock_size = right_dock
 7590                .stored_active_panel_size(window, cx)
 7591                .unwrap_or(Pixels::ZERO);
 7592            if right_dock_size + size > workspace_width {
 7593                size = workspace_width - right_dock_size
 7594            }
 7595        });
 7596
 7597        let flex_grow = self.dock_flex_for_size(DockPosition::Left, size, window, cx);
 7598        self.left_dock.update(cx, |left_dock, cx| {
 7599            if WorkspaceSettings::get_global(cx)
 7600                .resize_all_panels_in_dock
 7601                .contains(&DockPosition::Left)
 7602            {
 7603                left_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7604            } else {
 7605                left_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7606            }
 7607        });
 7608    }
 7609
 7610    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7611        let workspace_width = self.bounds.size.width;
 7612        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7613        self.left_dock.read_with(cx, |left_dock, cx| {
 7614            let left_dock_size = left_dock
 7615                .stored_active_panel_size(window, cx)
 7616                .unwrap_or(Pixels::ZERO);
 7617            if left_dock_size + size > workspace_width {
 7618                size = workspace_width - left_dock_size
 7619            }
 7620        });
 7621        let flex_grow = self.dock_flex_for_size(DockPosition::Right, size, window, cx);
 7622        self.right_dock.update(cx, |right_dock, cx| {
 7623            if WorkspaceSettings::get_global(cx)
 7624                .resize_all_panels_in_dock
 7625                .contains(&DockPosition::Right)
 7626            {
 7627                right_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7628            } else {
 7629                right_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7630            }
 7631        });
 7632    }
 7633
 7634    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7635        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7636        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7637            if WorkspaceSettings::get_global(cx)
 7638                .resize_all_panels_in_dock
 7639                .contains(&DockPosition::Bottom)
 7640            {
 7641                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7642            } else {
 7643                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7644            }
 7645        });
 7646    }
 7647
 7648    fn toggle_edit_predictions_all_files(
 7649        &mut self,
 7650        _: &ToggleEditPrediction,
 7651        _window: &mut Window,
 7652        cx: &mut Context<Self>,
 7653    ) {
 7654        let fs = self.project().read(cx).fs().clone();
 7655        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7656        update_settings_file(fs, cx, move |file, _| {
 7657            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7658        });
 7659    }
 7660
 7661    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7662        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7663        let next_mode = match current_mode {
 7664            Some(theme_settings::ThemeAppearanceMode::Light) => {
 7665                theme_settings::ThemeAppearanceMode::Dark
 7666            }
 7667            Some(theme_settings::ThemeAppearanceMode::Dark) => {
 7668                theme_settings::ThemeAppearanceMode::Light
 7669            }
 7670            Some(theme_settings::ThemeAppearanceMode::System) | None => {
 7671                match cx.theme().appearance() {
 7672                    theme::Appearance::Light => theme_settings::ThemeAppearanceMode::Dark,
 7673                    theme::Appearance::Dark => theme_settings::ThemeAppearanceMode::Light,
 7674                }
 7675            }
 7676        };
 7677
 7678        let fs = self.project().read(cx).fs().clone();
 7679        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7680            theme_settings::set_mode(settings, next_mode);
 7681        });
 7682    }
 7683
 7684    pub fn show_worktree_trust_security_modal(
 7685        &mut self,
 7686        toggle: bool,
 7687        window: &mut Window,
 7688        cx: &mut Context<Self>,
 7689    ) {
 7690        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7691            if toggle {
 7692                security_modal.update(cx, |security_modal, cx| {
 7693                    security_modal.dismiss(cx);
 7694                })
 7695            } else {
 7696                security_modal.update(cx, |security_modal, cx| {
 7697                    security_modal.refresh_restricted_paths(cx);
 7698                });
 7699            }
 7700        } else {
 7701            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7702                .map(|trusted_worktrees| {
 7703                    trusted_worktrees
 7704                        .read(cx)
 7705                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7706                })
 7707                .unwrap_or(false);
 7708            if has_restricted_worktrees {
 7709                let project = self.project().read(cx);
 7710                let remote_host = project
 7711                    .remote_connection_options(cx)
 7712                    .map(RemoteHostLocation::from);
 7713                let worktree_store = project.worktree_store().downgrade();
 7714                self.toggle_modal(window, cx, |_, cx| {
 7715                    SecurityModal::new(worktree_store, remote_host, cx)
 7716                });
 7717            }
 7718        }
 7719    }
 7720}
 7721
 7722pub trait AnyActiveCall {
 7723    fn entity(&self) -> AnyEntity;
 7724    fn is_in_room(&self, _: &App) -> bool;
 7725    fn room_id(&self, _: &App) -> Option<u64>;
 7726    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7727    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7728    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7729    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7730    fn is_sharing_project(&self, _: &App) -> bool;
 7731    fn has_remote_participants(&self, _: &App) -> bool;
 7732    fn local_participant_is_guest(&self, _: &App) -> bool;
 7733    fn client(&self, _: &App) -> Arc<Client>;
 7734    fn share_on_join(&self, _: &App) -> bool;
 7735    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7736    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7737    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7738    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7739    fn join_project(
 7740        &self,
 7741        _: u64,
 7742        _: Arc<LanguageRegistry>,
 7743        _: Arc<dyn Fs>,
 7744        _: &mut App,
 7745    ) -> Task<Result<Entity<Project>>>;
 7746    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7747    fn subscribe(
 7748        &self,
 7749        _: &mut Window,
 7750        _: &mut Context<Workspace>,
 7751        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7752    ) -> Subscription;
 7753    fn create_shared_screen(
 7754        &self,
 7755        _: PeerId,
 7756        _: &Entity<Pane>,
 7757        _: &mut Window,
 7758        _: &mut App,
 7759    ) -> Option<Entity<SharedScreen>>;
 7760}
 7761
 7762#[derive(Clone)]
 7763pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7764impl Global for GlobalAnyActiveCall {}
 7765
 7766impl GlobalAnyActiveCall {
 7767    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7768        cx.try_global()
 7769    }
 7770
 7771    pub(crate) fn global(cx: &App) -> &Self {
 7772        cx.global()
 7773    }
 7774}
 7775
 7776/// Workspace-local view of a remote participant's location.
 7777#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7778pub enum ParticipantLocation {
 7779    SharedProject { project_id: u64 },
 7780    UnsharedProject,
 7781    External,
 7782}
 7783
 7784impl ParticipantLocation {
 7785    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7786        match location
 7787            .and_then(|l| l.variant)
 7788            .context("participant location was not provided")?
 7789        {
 7790            proto::participant_location::Variant::SharedProject(project) => {
 7791                Ok(Self::SharedProject {
 7792                    project_id: project.id,
 7793                })
 7794            }
 7795            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7796            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7797        }
 7798    }
 7799}
 7800/// Workspace-local view of a remote collaborator's state.
 7801/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7802#[derive(Clone)]
 7803pub struct RemoteCollaborator {
 7804    pub user: Arc<User>,
 7805    pub peer_id: PeerId,
 7806    pub location: ParticipantLocation,
 7807    pub participant_index: ParticipantIndex,
 7808}
 7809
 7810pub enum ActiveCallEvent {
 7811    ParticipantLocationChanged { participant_id: PeerId },
 7812    RemoteVideoTracksChanged { participant_id: PeerId },
 7813}
 7814
 7815fn leader_border_for_pane(
 7816    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7817    pane: &Entity<Pane>,
 7818    _: &Window,
 7819    cx: &App,
 7820) -> Option<Div> {
 7821    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7822        if state.pane() == pane {
 7823            Some((*leader_id, state))
 7824        } else {
 7825            None
 7826        }
 7827    })?;
 7828
 7829    let mut leader_color = match leader_id {
 7830        CollaboratorId::PeerId(leader_peer_id) => {
 7831            let leader = GlobalAnyActiveCall::try_global(cx)?
 7832                .0
 7833                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7834
 7835            cx.theme()
 7836                .players()
 7837                .color_for_participant(leader.participant_index.0)
 7838                .cursor
 7839        }
 7840        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7841    };
 7842    leader_color.fade_out(0.3);
 7843    Some(
 7844        div()
 7845            .absolute()
 7846            .size_full()
 7847            .left_0()
 7848            .top_0()
 7849            .border_2()
 7850            .border_color(leader_color),
 7851    )
 7852}
 7853
 7854fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7855    ZED_WINDOW_POSITION
 7856        .zip(*ZED_WINDOW_SIZE)
 7857        .map(|(position, size)| Bounds {
 7858            origin: position,
 7859            size,
 7860        })
 7861}
 7862
 7863fn open_items(
 7864    serialized_workspace: Option<SerializedWorkspace>,
 7865    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7866    window: &mut Window,
 7867    cx: &mut Context<Workspace>,
 7868) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7869    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7870        Workspace::load_workspace(
 7871            serialized_workspace,
 7872            project_paths_to_open
 7873                .iter()
 7874                .map(|(_, project_path)| project_path)
 7875                .cloned()
 7876                .collect(),
 7877            window,
 7878            cx,
 7879        )
 7880    });
 7881
 7882    cx.spawn_in(window, async move |workspace, cx| {
 7883        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7884
 7885        if let Some(restored_items) = restored_items {
 7886            let restored_items = restored_items.await?;
 7887
 7888            let restored_project_paths = restored_items
 7889                .iter()
 7890                .filter_map(|item| {
 7891                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7892                        .ok()
 7893                        .flatten()
 7894                })
 7895                .collect::<HashSet<_>>();
 7896
 7897            for restored_item in restored_items {
 7898                opened_items.push(restored_item.map(Ok));
 7899            }
 7900
 7901            project_paths_to_open
 7902                .iter_mut()
 7903                .for_each(|(_, project_path)| {
 7904                    if let Some(project_path_to_open) = project_path
 7905                        && restored_project_paths.contains(project_path_to_open)
 7906                    {
 7907                        *project_path = None;
 7908                    }
 7909                });
 7910        } else {
 7911            for _ in 0..project_paths_to_open.len() {
 7912                opened_items.push(None);
 7913            }
 7914        }
 7915        assert!(opened_items.len() == project_paths_to_open.len());
 7916
 7917        let tasks =
 7918            project_paths_to_open
 7919                .into_iter()
 7920                .enumerate()
 7921                .map(|(ix, (abs_path, project_path))| {
 7922                    let workspace = workspace.clone();
 7923                    cx.spawn(async move |cx| {
 7924                        let file_project_path = project_path?;
 7925                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7926                            workspace.project().update(cx, |project, cx| {
 7927                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7928                            })
 7929                        });
 7930
 7931                        // We only want to open file paths here. If one of the items
 7932                        // here is a directory, it was already opened further above
 7933                        // with a `find_or_create_worktree`.
 7934                        if let Ok(task) = abs_path_task
 7935                            && task.await.is_none_or(|p| p.is_file())
 7936                        {
 7937                            return Some((
 7938                                ix,
 7939                                workspace
 7940                                    .update_in(cx, |workspace, window, cx| {
 7941                                        workspace.open_path(
 7942                                            file_project_path,
 7943                                            None,
 7944                                            true,
 7945                                            window,
 7946                                            cx,
 7947                                        )
 7948                                    })
 7949                                    .log_err()?
 7950                                    .await,
 7951                            ));
 7952                        }
 7953                        None
 7954                    })
 7955                });
 7956
 7957        let tasks = tasks.collect::<Vec<_>>();
 7958
 7959        let tasks = futures::future::join_all(tasks);
 7960        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7961            opened_items[ix] = Some(path_open_result);
 7962        }
 7963
 7964        Ok(opened_items)
 7965    })
 7966}
 7967
 7968#[derive(Clone)]
 7969enum ActivateInDirectionTarget {
 7970    Pane(Entity<Pane>),
 7971    Dock(Entity<Dock>),
 7972    Sidebar(FocusHandle),
 7973}
 7974
 7975fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7976    window
 7977        .update(cx, |multi_workspace, _, cx| {
 7978            let workspace = multi_workspace.workspace().clone();
 7979            workspace.update(cx, |workspace, cx| {
 7980                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7981                    struct DatabaseFailedNotification;
 7982
 7983                    workspace.show_notification(
 7984                        NotificationId::unique::<DatabaseFailedNotification>(),
 7985                        cx,
 7986                        |cx| {
 7987                            cx.new(|cx| {
 7988                                MessageNotification::new("Failed to load the database file.", cx)
 7989                                    .primary_message("File an Issue")
 7990                                    .primary_icon(IconName::Plus)
 7991                                    .primary_on_click(|window, cx| {
 7992                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7993                                    })
 7994                            })
 7995                        },
 7996                    );
 7997                }
 7998            });
 7999        })
 8000        .log_err();
 8001}
 8002
 8003fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 8004    if val == 0 {
 8005        ThemeSettings::get_global(cx).ui_font_size(cx)
 8006    } else {
 8007        px(val as f32)
 8008    }
 8009}
 8010
 8011fn adjust_active_dock_size_by_px(
 8012    px: Pixels,
 8013    workspace: &mut Workspace,
 8014    window: &mut Window,
 8015    cx: &mut Context<Workspace>,
 8016) {
 8017    let Some(active_dock) = workspace
 8018        .all_docks()
 8019        .into_iter()
 8020        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 8021    else {
 8022        return;
 8023    };
 8024    let dock = active_dock.read(cx);
 8025    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 8026        return;
 8027    };
 8028    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 8029}
 8030
 8031fn adjust_open_docks_size_by_px(
 8032    px: Pixels,
 8033    workspace: &mut Workspace,
 8034    window: &mut Window,
 8035    cx: &mut Context<Workspace>,
 8036) {
 8037    let docks = workspace
 8038        .all_docks()
 8039        .into_iter()
 8040        .filter_map(|dock_entity| {
 8041            let dock = dock_entity.read(cx);
 8042            if dock.is_open() {
 8043                let dock_pos = dock.position();
 8044                let panel_size = workspace.dock_size(&dock, window, cx)?;
 8045                Some((dock_pos, panel_size + px))
 8046            } else {
 8047                None
 8048            }
 8049        })
 8050        .collect::<Vec<_>>();
 8051
 8052    for (position, new_size) in docks {
 8053        workspace.resize_dock(position, new_size, window, cx);
 8054    }
 8055}
 8056
 8057impl Focusable for Workspace {
 8058    fn focus_handle(&self, cx: &App) -> FocusHandle {
 8059        self.active_pane.focus_handle(cx)
 8060    }
 8061}
 8062
 8063#[derive(Clone)]
 8064struct DraggedDock(DockPosition);
 8065
 8066impl Render for DraggedDock {
 8067    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 8068        gpui::Empty
 8069    }
 8070}
 8071
 8072impl Render for Workspace {
 8073    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 8074        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 8075        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 8076            log::info!("Rendered first frame");
 8077        }
 8078
 8079        let centered_layout = self.centered_layout
 8080            && self.center.panes().len() == 1
 8081            && self.active_item(cx).is_some();
 8082        let render_padding = |size| {
 8083            (size > 0.0).then(|| {
 8084                div()
 8085                    .h_full()
 8086                    .w(relative(size))
 8087                    .bg(cx.theme().colors().editor_background)
 8088                    .border_color(cx.theme().colors().pane_group_border)
 8089            })
 8090        };
 8091        let paddings = if centered_layout {
 8092            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 8093            (
 8094                render_padding(Self::adjust_padding(
 8095                    settings.left_padding.map(|padding| padding.0),
 8096                )),
 8097                render_padding(Self::adjust_padding(
 8098                    settings.right_padding.map(|padding| padding.0),
 8099                )),
 8100            )
 8101        } else {
 8102            (None, None)
 8103        };
 8104        let ui_font = theme_settings::setup_ui_font(window, cx);
 8105
 8106        let theme = cx.theme().clone();
 8107        let colors = theme.colors();
 8108        let notification_entities = self
 8109            .notifications
 8110            .iter()
 8111            .map(|(_, notification)| notification.entity_id())
 8112            .collect::<Vec<_>>();
 8113        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 8114
 8115        div()
 8116            .relative()
 8117            .size_full()
 8118            .flex()
 8119            .flex_col()
 8120            .font(ui_font)
 8121            .gap_0()
 8122                .justify_start()
 8123                .items_start()
 8124                .text_color(colors.text)
 8125                .overflow_hidden()
 8126                .children(self.titlebar_item.clone())
 8127                .on_modifiers_changed(move |_, _, cx| {
 8128                    for &id in &notification_entities {
 8129                        cx.notify(id);
 8130                    }
 8131                })
 8132                .child(
 8133                    div()
 8134                        .size_full()
 8135                        .relative()
 8136                        .flex_1()
 8137                        .flex()
 8138                        .flex_col()
 8139                        .child(
 8140                            div()
 8141                                .id("workspace")
 8142                                .bg(colors.background)
 8143                                .relative()
 8144                                .flex_1()
 8145                                .w_full()
 8146                                .flex()
 8147                                .flex_col()
 8148                                .overflow_hidden()
 8149                                .border_t_1()
 8150                                .border_b_1()
 8151                                .border_color(colors.border)
 8152                                .child({
 8153                                    let this = cx.entity();
 8154                                    canvas(
 8155                                        move |bounds, window, cx| {
 8156                                            this.update(cx, |this, cx| {
 8157                                                let bounds_changed = this.bounds != bounds;
 8158                                                this.bounds = bounds;
 8159
 8160                                                if bounds_changed {
 8161                                                    this.left_dock.update(cx, |dock, cx| {
 8162                                                        dock.clamp_panel_size(
 8163                                                            bounds.size.width,
 8164                                                            window,
 8165                                                            cx,
 8166                                                        )
 8167                                                    });
 8168
 8169                                                    this.right_dock.update(cx, |dock, cx| {
 8170                                                        dock.clamp_panel_size(
 8171                                                            bounds.size.width,
 8172                                                            window,
 8173                                                            cx,
 8174                                                        )
 8175                                                    });
 8176
 8177                                                    this.bottom_dock.update(cx, |dock, cx| {
 8178                                                        dock.clamp_panel_size(
 8179                                                            bounds.size.height,
 8180                                                            window,
 8181                                                            cx,
 8182                                                        )
 8183                                                    });
 8184                                                }
 8185                                            })
 8186                                        },
 8187                                        |_, _, _, _| {},
 8188                                    )
 8189                                    .absolute()
 8190                                    .size_full()
 8191                                })
 8192                                .when(self.zoomed.is_none(), |this| {
 8193                                    this.on_drag_move(cx.listener(
 8194                                        move |workspace,
 8195                                              e: &DragMoveEvent<DraggedDock>,
 8196                                              window,
 8197                                              cx| {
 8198                                            if workspace.previous_dock_drag_coordinates
 8199                                                != Some(e.event.position)
 8200                                            {
 8201                                                workspace.previous_dock_drag_coordinates =
 8202                                                    Some(e.event.position);
 8203
 8204                                                match e.drag(cx).0 {
 8205                                                    DockPosition::Left => {
 8206                                                        workspace.resize_left_dock(
 8207                                                            e.event.position.x
 8208                                                                - workspace.bounds.left(),
 8209                                                            window,
 8210                                                            cx,
 8211                                                        );
 8212                                                    }
 8213                                                    DockPosition::Right => {
 8214                                                        workspace.resize_right_dock(
 8215                                                            workspace.bounds.right()
 8216                                                                - e.event.position.x,
 8217                                                            window,
 8218                                                            cx,
 8219                                                        );
 8220                                                    }
 8221                                                    DockPosition::Bottom => {
 8222                                                        workspace.resize_bottom_dock(
 8223                                                            workspace.bounds.bottom()
 8224                                                                - e.event.position.y,
 8225                                                            window,
 8226                                                            cx,
 8227                                                        );
 8228                                                    }
 8229                                                };
 8230                                                workspace.serialize_workspace(window, cx);
 8231                                            }
 8232                                        },
 8233                                    ))
 8234
 8235                                })
 8236                                .child({
 8237                                    match bottom_dock_layout {
 8238                                        BottomDockLayout::Full => div()
 8239                                            .flex()
 8240                                            .flex_col()
 8241                                            .h_full()
 8242                                            .child(
 8243                                                div()
 8244                                                    .flex()
 8245                                                    .flex_row()
 8246                                                    .flex_1()
 8247                                                    .overflow_hidden()
 8248                                                    .children(self.render_dock(
 8249                                                        DockPosition::Left,
 8250                                                        &self.left_dock,
 8251                                                        window,
 8252                                                        cx,
 8253                                                    ))
 8254
 8255                                                    .child(
 8256                                                        div()
 8257                                                            .flex()
 8258                                                            .flex_col()
 8259                                                            .flex_1()
 8260                                                            .overflow_hidden()
 8261                                                            .child(
 8262                                                                h_flex()
 8263                                                                    .flex_1()
 8264                                                                    .when_some(
 8265                                                                        paddings.0,
 8266                                                                        |this, p| {
 8267                                                                            this.child(
 8268                                                                                p.border_r_1(),
 8269                                                                            )
 8270                                                                        },
 8271                                                                    )
 8272                                                                    .child(self.center.render(
 8273                                                                        self.zoomed.as_ref(),
 8274                                                                        &PaneRenderContext {
 8275                                                                            follower_states:
 8276                                                                                &self.follower_states,
 8277                                                                            active_call: self.active_call(),
 8278                                                                            active_pane: &self.active_pane,
 8279                                                                            app_state: &self.app_state,
 8280                                                                            project: &self.project,
 8281                                                                            workspace: &self.weak_self,
 8282                                                                        },
 8283                                                                        window,
 8284                                                                        cx,
 8285                                                                    ))
 8286                                                                    .when_some(
 8287                                                                        paddings.1,
 8288                                                                        |this, p| {
 8289                                                                            this.child(
 8290                                                                                p.border_l_1(),
 8291                                                                            )
 8292                                                                        },
 8293                                                                    ),
 8294                                                            ),
 8295                                                    )
 8296
 8297                                                    .children(self.render_dock(
 8298                                                        DockPosition::Right,
 8299                                                        &self.right_dock,
 8300                                                        window,
 8301                                                        cx,
 8302                                                    )),
 8303                                            )
 8304                                            .child(div().w_full().children(self.render_dock(
 8305                                                DockPosition::Bottom,
 8306                                                &self.bottom_dock,
 8307                                                window,
 8308                                                cx
 8309                                            ))),
 8310
 8311                                        BottomDockLayout::LeftAligned => div()
 8312                                            .flex()
 8313                                            .flex_row()
 8314                                            .h_full()
 8315                                            .child(
 8316                                                div()
 8317                                                    .flex()
 8318                                                    .flex_col()
 8319                                                    .flex_1()
 8320                                                    .h_full()
 8321                                                    .child(
 8322                                                        div()
 8323                                                            .flex()
 8324                                                            .flex_row()
 8325                                                            .flex_1()
 8326                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8327
 8328                                                            .child(
 8329                                                                div()
 8330                                                                    .flex()
 8331                                                                    .flex_col()
 8332                                                                    .flex_1()
 8333                                                                    .overflow_hidden()
 8334                                                                    .child(
 8335                                                                        h_flex()
 8336                                                                            .flex_1()
 8337                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8338                                                                            .child(self.center.render(
 8339                                                                                self.zoomed.as_ref(),
 8340                                                                                &PaneRenderContext {
 8341                                                                                    follower_states:
 8342                                                                                        &self.follower_states,
 8343                                                                                    active_call: self.active_call(),
 8344                                                                                    active_pane: &self.active_pane,
 8345                                                                                    app_state: &self.app_state,
 8346                                                                                    project: &self.project,
 8347                                                                                    workspace: &self.weak_self,
 8348                                                                                },
 8349                                                                                window,
 8350                                                                                cx,
 8351                                                                            ))
 8352                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8353                                                                    )
 8354                                                            )
 8355
 8356                                                    )
 8357                                                    .child(
 8358                                                        div()
 8359                                                            .w_full()
 8360                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8361                                                    ),
 8362                                            )
 8363                                            .children(self.render_dock(
 8364                                                DockPosition::Right,
 8365                                                &self.right_dock,
 8366                                                window,
 8367                                                cx,
 8368                                            )),
 8369                                        BottomDockLayout::RightAligned => div()
 8370                                            .flex()
 8371                                            .flex_row()
 8372                                            .h_full()
 8373                                            .children(self.render_dock(
 8374                                                DockPosition::Left,
 8375                                                &self.left_dock,
 8376                                                window,
 8377                                                cx,
 8378                                            ))
 8379
 8380                                            .child(
 8381                                                div()
 8382                                                    .flex()
 8383                                                    .flex_col()
 8384                                                    .flex_1()
 8385                                                    .h_full()
 8386                                                    .child(
 8387                                                        div()
 8388                                                            .flex()
 8389                                                            .flex_row()
 8390                                                            .flex_1()
 8391                                                            .child(
 8392                                                                div()
 8393                                                                    .flex()
 8394                                                                    .flex_col()
 8395                                                                    .flex_1()
 8396                                                                    .overflow_hidden()
 8397                                                                    .child(
 8398                                                                        h_flex()
 8399                                                                            .flex_1()
 8400                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8401                                                                            .child(self.center.render(
 8402                                                                                self.zoomed.as_ref(),
 8403                                                                                &PaneRenderContext {
 8404                                                                                    follower_states:
 8405                                                                                        &self.follower_states,
 8406                                                                                    active_call: self.active_call(),
 8407                                                                                    active_pane: &self.active_pane,
 8408                                                                                    app_state: &self.app_state,
 8409                                                                                    project: &self.project,
 8410                                                                                    workspace: &self.weak_self,
 8411                                                                                },
 8412                                                                                window,
 8413                                                                                cx,
 8414                                                                            ))
 8415                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8416                                                                    )
 8417                                                            )
 8418
 8419                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8420                                                    )
 8421                                                    .child(
 8422                                                        div()
 8423                                                            .w_full()
 8424                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8425                                                    ),
 8426                                            ),
 8427                                        BottomDockLayout::Contained => div()
 8428                                            .flex()
 8429                                            .flex_row()
 8430                                            .h_full()
 8431                                            .children(self.render_dock(
 8432                                                DockPosition::Left,
 8433                                                &self.left_dock,
 8434                                                window,
 8435                                                cx,
 8436                                            ))
 8437
 8438                                            .child(
 8439                                                div()
 8440                                                    .flex()
 8441                                                    .flex_col()
 8442                                                    .flex_1()
 8443                                                    .overflow_hidden()
 8444                                                    .child(
 8445                                                        h_flex()
 8446                                                            .flex_1()
 8447                                                            .when_some(paddings.0, |this, p| {
 8448                                                                this.child(p.border_r_1())
 8449                                                            })
 8450                                                            .child(self.center.render(
 8451                                                                self.zoomed.as_ref(),
 8452                                                                &PaneRenderContext {
 8453                                                                    follower_states:
 8454                                                                        &self.follower_states,
 8455                                                                    active_call: self.active_call(),
 8456                                                                    active_pane: &self.active_pane,
 8457                                                                    app_state: &self.app_state,
 8458                                                                    project: &self.project,
 8459                                                                    workspace: &self.weak_self,
 8460                                                                },
 8461                                                                window,
 8462                                                                cx,
 8463                                                            ))
 8464                                                            .when_some(paddings.1, |this, p| {
 8465                                                                this.child(p.border_l_1())
 8466                                                            }),
 8467                                                    )
 8468                                                    .children(self.render_dock(
 8469                                                        DockPosition::Bottom,
 8470                                                        &self.bottom_dock,
 8471                                                        window,
 8472                                                        cx,
 8473                                                    )),
 8474                                            )
 8475
 8476                                            .children(self.render_dock(
 8477                                                DockPosition::Right,
 8478                                                &self.right_dock,
 8479                                                window,
 8480                                                cx,
 8481                                            )),
 8482                                    }
 8483                                })
 8484                                .children(self.zoomed.as_ref().and_then(|view| {
 8485                                    let zoomed_view = view.upgrade()?;
 8486                                    let div = div()
 8487                                        .occlude()
 8488                                        .absolute()
 8489                                        .overflow_hidden()
 8490                                        .border_color(colors.border)
 8491                                        .bg(colors.background)
 8492                                        .child(zoomed_view)
 8493                                        .inset_0()
 8494                                        .shadow_lg();
 8495
 8496                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8497                                       return Some(div);
 8498                                    }
 8499
 8500                                    Some(match self.zoomed_position {
 8501                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8502                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8503                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8504                                        None => {
 8505                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8506                                        }
 8507                                    })
 8508                                }))
 8509                                .children(self.render_notifications(window, cx)),
 8510                        )
 8511                        .when(self.status_bar_visible(cx), |parent| {
 8512                            parent.child(self.status_bar.clone())
 8513                        })
 8514                        .child(self.toast_layer.clone()),
 8515                )
 8516    }
 8517}
 8518
 8519impl WorkspaceStore {
 8520    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8521        Self {
 8522            workspaces: Default::default(),
 8523            _subscriptions: vec![
 8524                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8525                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8526            ],
 8527            client,
 8528        }
 8529    }
 8530
 8531    pub fn update_followers(
 8532        &self,
 8533        project_id: Option<u64>,
 8534        update: proto::update_followers::Variant,
 8535        cx: &App,
 8536    ) -> Option<()> {
 8537        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8538        let room_id = active_call.0.room_id(cx)?;
 8539        self.client
 8540            .send(proto::UpdateFollowers {
 8541                room_id,
 8542                project_id,
 8543                variant: Some(update),
 8544            })
 8545            .log_err()
 8546    }
 8547
 8548    pub async fn handle_follow(
 8549        this: Entity<Self>,
 8550        envelope: TypedEnvelope<proto::Follow>,
 8551        mut cx: AsyncApp,
 8552    ) -> Result<proto::FollowResponse> {
 8553        this.update(&mut cx, |this, cx| {
 8554            let follower = Follower {
 8555                project_id: envelope.payload.project_id,
 8556                peer_id: envelope.original_sender_id()?,
 8557            };
 8558
 8559            let mut response = proto::FollowResponse::default();
 8560
 8561            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8562                let Some(workspace) = weak_workspace.upgrade() else {
 8563                    return false;
 8564                };
 8565                window_handle
 8566                    .update(cx, |_, window, cx| {
 8567                        workspace.update(cx, |workspace, cx| {
 8568                            let handler_response =
 8569                                workspace.handle_follow(follower.project_id, window, cx);
 8570                            if let Some(active_view) = handler_response.active_view
 8571                                && workspace.project.read(cx).remote_id() == follower.project_id
 8572                            {
 8573                                response.active_view = Some(active_view)
 8574                            }
 8575                        });
 8576                    })
 8577                    .is_ok()
 8578            });
 8579
 8580            Ok(response)
 8581        })
 8582    }
 8583
 8584    async fn handle_update_followers(
 8585        this: Entity<Self>,
 8586        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8587        mut cx: AsyncApp,
 8588    ) -> Result<()> {
 8589        let leader_id = envelope.original_sender_id()?;
 8590        let update = envelope.payload;
 8591
 8592        this.update(&mut cx, |this, cx| {
 8593            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8594                let Some(workspace) = weak_workspace.upgrade() else {
 8595                    return false;
 8596                };
 8597                window_handle
 8598                    .update(cx, |_, window, cx| {
 8599                        workspace.update(cx, |workspace, cx| {
 8600                            let project_id = workspace.project.read(cx).remote_id();
 8601                            if update.project_id != project_id && update.project_id.is_some() {
 8602                                return;
 8603                            }
 8604                            workspace.handle_update_followers(
 8605                                leader_id,
 8606                                update.clone(),
 8607                                window,
 8608                                cx,
 8609                            );
 8610                        });
 8611                    })
 8612                    .is_ok()
 8613            });
 8614            Ok(())
 8615        })
 8616    }
 8617
 8618    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8619        self.workspaces.iter().map(|(_, weak)| weak)
 8620    }
 8621
 8622    pub fn workspaces_with_windows(
 8623        &self,
 8624    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8625        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8626    }
 8627}
 8628
 8629impl ViewId {
 8630    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8631        Ok(Self {
 8632            creator: message
 8633                .creator
 8634                .map(CollaboratorId::PeerId)
 8635                .context("creator is missing")?,
 8636            id: message.id,
 8637        })
 8638    }
 8639
 8640    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8641        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8642            Some(proto::ViewId {
 8643                creator: Some(peer_id),
 8644                id: self.id,
 8645            })
 8646        } else {
 8647            None
 8648        }
 8649    }
 8650}
 8651
 8652impl FollowerState {
 8653    fn pane(&self) -> &Entity<Pane> {
 8654        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8655    }
 8656}
 8657
 8658pub trait WorkspaceHandle {
 8659    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8660}
 8661
 8662impl WorkspaceHandle for Entity<Workspace> {
 8663    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8664        self.read(cx)
 8665            .worktrees(cx)
 8666            .flat_map(|worktree| {
 8667                let worktree_id = worktree.read(cx).id();
 8668                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8669                    worktree_id,
 8670                    path: f.path.clone(),
 8671                })
 8672            })
 8673            .collect::<Vec<_>>()
 8674    }
 8675}
 8676
 8677pub async fn last_opened_workspace_location(
 8678    db: &WorkspaceDb,
 8679    fs: &dyn fs::Fs,
 8680) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8681    db.last_workspace(fs)
 8682        .await
 8683        .log_err()
 8684        .flatten()
 8685        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8686}
 8687
 8688pub async fn last_session_workspace_locations(
 8689    db: &WorkspaceDb,
 8690    last_session_id: &str,
 8691    last_session_window_stack: Option<Vec<WindowId>>,
 8692    fs: &dyn fs::Fs,
 8693) -> Option<Vec<SessionWorkspace>> {
 8694    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8695        .await
 8696        .log_err()
 8697}
 8698
 8699pub async fn restore_multiworkspace(
 8700    multi_workspace: SerializedMultiWorkspace,
 8701    app_state: Arc<AppState>,
 8702    cx: &mut AsyncApp,
 8703) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8704    let SerializedMultiWorkspace {
 8705        active_workspace,
 8706        state,
 8707    } = multi_workspace;
 8708    let MultiWorkspaceState {
 8709        sidebar_open,
 8710        project_group_keys,
 8711        sidebar_state,
 8712        ..
 8713    } = state;
 8714
 8715    let window_handle = if active_workspace.paths.is_empty() {
 8716        cx.update(|cx| {
 8717            open_workspace_by_id(active_workspace.workspace_id, app_state.clone(), None, cx)
 8718        })
 8719        .await?
 8720    } else {
 8721        let OpenResult { window, .. } = cx
 8722            .update(|cx| {
 8723                Workspace::new_local(
 8724                    active_workspace.paths.paths().to_vec(),
 8725                    app_state.clone(),
 8726                    None,
 8727                    None,
 8728                    None,
 8729                    OpenMode::Activate,
 8730                    cx,
 8731                )
 8732            })
 8733            .await?;
 8734        window
 8735    };
 8736
 8737    if !project_group_keys.is_empty() {
 8738        let restored_keys: Vec<ProjectGroupKey> =
 8739            project_group_keys.into_iter().map(Into::into).collect();
 8740        window_handle
 8741            .update(cx, |multi_workspace, _window, _cx| {
 8742                multi_workspace.restore_project_group_keys(restored_keys);
 8743            })
 8744            .ok();
 8745    }
 8746
 8747    if sidebar_open {
 8748        window_handle
 8749            .update(cx, |multi_workspace, _, cx| {
 8750                multi_workspace.open_sidebar(cx);
 8751            })
 8752            .ok();
 8753    }
 8754
 8755    if let Some(sidebar_state) = sidebar_state {
 8756        window_handle
 8757            .update(cx, |multi_workspace, window, cx| {
 8758                if let Some(sidebar) = multi_workspace.sidebar() {
 8759                    sidebar.restore_serialized_state(&sidebar_state, window, cx);
 8760                }
 8761                multi_workspace.serialize(cx);
 8762            })
 8763            .ok();
 8764    }
 8765
 8766    window_handle
 8767        .update(cx, |_, window, _cx| {
 8768            window.activate_window();
 8769        })
 8770        .ok();
 8771
 8772    Ok(window_handle)
 8773}
 8774
 8775actions!(
 8776    collab,
 8777    [
 8778        /// Opens the channel notes for the current call.
 8779        ///
 8780        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8781        /// channel in the collab panel.
 8782        ///
 8783        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8784        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8785        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8786        OpenChannelNotes,
 8787        /// Mutes your microphone.
 8788        Mute,
 8789        /// Deafens yourself (mute both microphone and speakers).
 8790        Deafen,
 8791        /// Leaves the current call.
 8792        LeaveCall,
 8793        /// Shares the current project with collaborators.
 8794        ShareProject,
 8795        /// Shares your screen with collaborators.
 8796        ScreenShare,
 8797        /// Copies the current room name and session id for debugging purposes.
 8798        CopyRoomId,
 8799    ]
 8800);
 8801
 8802/// Opens the channel notes for a specific channel by its ID.
 8803#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8804#[action(namespace = collab)]
 8805#[serde(deny_unknown_fields)]
 8806pub struct OpenChannelNotesById {
 8807    pub channel_id: u64,
 8808}
 8809
 8810actions!(
 8811    zed,
 8812    [
 8813        /// Opens the Zed log file.
 8814        OpenLog,
 8815        /// Reveals the Zed log file in the system file manager.
 8816        RevealLogInFileManager
 8817    ]
 8818);
 8819
 8820async fn join_channel_internal(
 8821    channel_id: ChannelId,
 8822    app_state: &Arc<AppState>,
 8823    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8824    requesting_workspace: Option<WeakEntity<Workspace>>,
 8825    active_call: &dyn AnyActiveCall,
 8826    cx: &mut AsyncApp,
 8827) -> Result<bool> {
 8828    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8829        if !active_call.is_in_room(cx) {
 8830            return (false, false);
 8831        }
 8832
 8833        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8834        let should_prompt = active_call.is_sharing_project(cx)
 8835            && active_call.has_remote_participants(cx)
 8836            && !already_in_channel;
 8837        (should_prompt, already_in_channel)
 8838    });
 8839
 8840    if already_in_channel {
 8841        let task = cx.update(|cx| {
 8842            if let Some((project, host)) = active_call.most_active_project(cx) {
 8843                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8844            } else {
 8845                None
 8846            }
 8847        });
 8848        if let Some(task) = task {
 8849            task.await?;
 8850        }
 8851        return anyhow::Ok(true);
 8852    }
 8853
 8854    if should_prompt {
 8855        if let Some(multi_workspace) = requesting_window {
 8856            let answer = multi_workspace
 8857                .update(cx, |_, window, cx| {
 8858                    window.prompt(
 8859                        PromptLevel::Warning,
 8860                        "Do you want to switch channels?",
 8861                        Some("Leaving this call will unshare your current project."),
 8862                        &["Yes, Join Channel", "Cancel"],
 8863                        cx,
 8864                    )
 8865                })?
 8866                .await;
 8867
 8868            if answer == Ok(1) {
 8869                return Ok(false);
 8870            }
 8871        } else {
 8872            return Ok(false);
 8873        }
 8874    }
 8875
 8876    let client = cx.update(|cx| active_call.client(cx));
 8877
 8878    let mut client_status = client.status();
 8879
 8880    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8881    'outer: loop {
 8882        let Some(status) = client_status.recv().await else {
 8883            anyhow::bail!("error connecting");
 8884        };
 8885
 8886        match status {
 8887            Status::Connecting
 8888            | Status::Authenticating
 8889            | Status::Authenticated
 8890            | Status::Reconnecting
 8891            | Status::Reauthenticating
 8892            | Status::Reauthenticated => continue,
 8893            Status::Connected { .. } => break 'outer,
 8894            Status::SignedOut | Status::AuthenticationError => {
 8895                return Err(ErrorCode::SignedOut.into());
 8896            }
 8897            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8898            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8899                return Err(ErrorCode::Disconnected.into());
 8900            }
 8901        }
 8902    }
 8903
 8904    let joined = cx
 8905        .update(|cx| active_call.join_channel(channel_id, cx))
 8906        .await?;
 8907
 8908    if !joined {
 8909        return anyhow::Ok(true);
 8910    }
 8911
 8912    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8913
 8914    let task = cx.update(|cx| {
 8915        if let Some((project, host)) = active_call.most_active_project(cx) {
 8916            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8917        }
 8918
 8919        // If you are the first to join a channel, see if you should share your project.
 8920        if !active_call.has_remote_participants(cx)
 8921            && !active_call.local_participant_is_guest(cx)
 8922            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8923        {
 8924            let project = workspace.update(cx, |workspace, cx| {
 8925                let project = workspace.project.read(cx);
 8926
 8927                if !active_call.share_on_join(cx) {
 8928                    return None;
 8929                }
 8930
 8931                if (project.is_local() || project.is_via_remote_server())
 8932                    && project.visible_worktrees(cx).any(|tree| {
 8933                        tree.read(cx)
 8934                            .root_entry()
 8935                            .is_some_and(|entry| entry.is_dir())
 8936                    })
 8937                {
 8938                    Some(workspace.project.clone())
 8939                } else {
 8940                    None
 8941                }
 8942            });
 8943            if let Some(project) = project {
 8944                let share_task = active_call.share_project(project, cx);
 8945                return Some(cx.spawn(async move |_cx| -> Result<()> {
 8946                    share_task.await?;
 8947                    Ok(())
 8948                }));
 8949            }
 8950        }
 8951
 8952        None
 8953    });
 8954    if let Some(task) = task {
 8955        task.await?;
 8956        return anyhow::Ok(true);
 8957    }
 8958    anyhow::Ok(false)
 8959}
 8960
 8961pub fn join_channel(
 8962    channel_id: ChannelId,
 8963    app_state: Arc<AppState>,
 8964    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8965    requesting_workspace: Option<WeakEntity<Workspace>>,
 8966    cx: &mut App,
 8967) -> Task<Result<()>> {
 8968    let active_call = GlobalAnyActiveCall::global(cx).clone();
 8969    cx.spawn(async move |cx| {
 8970        let result = join_channel_internal(
 8971            channel_id,
 8972            &app_state,
 8973            requesting_window,
 8974            requesting_workspace,
 8975            &*active_call.0,
 8976            cx,
 8977        )
 8978        .await;
 8979
 8980        // join channel succeeded, and opened a window
 8981        if matches!(result, Ok(true)) {
 8982            return anyhow::Ok(());
 8983        }
 8984
 8985        // find an existing workspace to focus and show call controls
 8986        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8987        if active_window.is_none() {
 8988            // no open workspaces, make one to show the error in (blergh)
 8989            let OpenResult {
 8990                window: window_handle,
 8991                ..
 8992            } = cx
 8993                .update(|cx| {
 8994                    Workspace::new_local(
 8995                        vec![],
 8996                        app_state.clone(),
 8997                        requesting_window,
 8998                        None,
 8999                        None,
 9000                        OpenMode::Activate,
 9001                        cx,
 9002                    )
 9003                })
 9004                .await?;
 9005
 9006            window_handle
 9007                .update(cx, |_, window, _cx| {
 9008                    window.activate_window();
 9009                })
 9010                .ok();
 9011
 9012            if result.is_ok() {
 9013                cx.update(|cx| {
 9014                    cx.dispatch_action(&OpenChannelNotes);
 9015                });
 9016            }
 9017
 9018            active_window = Some(window_handle);
 9019        }
 9020
 9021        if let Err(err) = result {
 9022            log::error!("failed to join channel: {}", err);
 9023            if let Some(active_window) = active_window {
 9024                active_window
 9025                    .update(cx, |_, window, cx| {
 9026                        let detail: SharedString = match err.error_code() {
 9027                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 9028                            ErrorCode::UpgradeRequired => concat!(
 9029                                "Your are running an unsupported version of Zed. ",
 9030                                "Please update to continue."
 9031                            )
 9032                            .into(),
 9033                            ErrorCode::NoSuchChannel => concat!(
 9034                                "No matching channel was found. ",
 9035                                "Please check the link and try again."
 9036                            )
 9037                            .into(),
 9038                            ErrorCode::Forbidden => concat!(
 9039                                "This channel is private, and you do not have access. ",
 9040                                "Please ask someone to add you and try again."
 9041                            )
 9042                            .into(),
 9043                            ErrorCode::Disconnected => {
 9044                                "Please check your internet connection and try again.".into()
 9045                            }
 9046                            _ => format!("{}\n\nPlease try again.", err).into(),
 9047                        };
 9048                        window.prompt(
 9049                            PromptLevel::Critical,
 9050                            "Failed to join channel",
 9051                            Some(&detail),
 9052                            &["Ok"],
 9053                            cx,
 9054                        )
 9055                    })?
 9056                    .await
 9057                    .ok();
 9058            }
 9059        }
 9060
 9061        // return ok, we showed the error to the user.
 9062        anyhow::Ok(())
 9063    })
 9064}
 9065
 9066pub async fn get_any_active_multi_workspace(
 9067    app_state: Arc<AppState>,
 9068    mut cx: AsyncApp,
 9069) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 9070    // find an existing workspace to focus and show call controls
 9071    let active_window = activate_any_workspace_window(&mut cx);
 9072    if active_window.is_none() {
 9073        cx.update(|cx| {
 9074            Workspace::new_local(
 9075                vec![],
 9076                app_state.clone(),
 9077                None,
 9078                None,
 9079                None,
 9080                OpenMode::Activate,
 9081                cx,
 9082            )
 9083        })
 9084        .await?;
 9085    }
 9086    activate_any_workspace_window(&mut cx).context("could not open zed")
 9087}
 9088
 9089fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 9090    cx.update(|cx| {
 9091        if let Some(workspace_window) = cx
 9092            .active_window()
 9093            .and_then(|window| window.downcast::<MultiWorkspace>())
 9094        {
 9095            return Some(workspace_window);
 9096        }
 9097
 9098        for window in cx.windows() {
 9099            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 9100                workspace_window
 9101                    .update(cx, |_, window, _| window.activate_window())
 9102                    .ok();
 9103                return Some(workspace_window);
 9104            }
 9105        }
 9106        None
 9107    })
 9108}
 9109
 9110pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 9111    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 9112}
 9113
 9114pub fn workspace_windows_for_location(
 9115    serialized_location: &SerializedWorkspaceLocation,
 9116    cx: &App,
 9117) -> Vec<WindowHandle<MultiWorkspace>> {
 9118    cx.windows()
 9119        .into_iter()
 9120        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9121        .filter(|multi_workspace| {
 9122            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 9123                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 9124                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 9125                }
 9126                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 9127                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 9128                    a.distro_name == b.distro_name
 9129                }
 9130                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 9131                    a.container_id == b.container_id
 9132                }
 9133                #[cfg(any(test, feature = "test-support"))]
 9134                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 9135                    a.id == b.id
 9136                }
 9137                _ => false,
 9138            };
 9139
 9140            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 9141                multi_workspace.workspaces().any(|workspace| {
 9142                    match workspace.read(cx).workspace_location(cx) {
 9143                        WorkspaceLocation::Location(location, _) => {
 9144                            match (&location, serialized_location) {
 9145                                (
 9146                                    SerializedWorkspaceLocation::Local,
 9147                                    SerializedWorkspaceLocation::Local,
 9148                                ) => true,
 9149                                (
 9150                                    SerializedWorkspaceLocation::Remote(a),
 9151                                    SerializedWorkspaceLocation::Remote(b),
 9152                                ) => same_host(a, b),
 9153                                _ => false,
 9154                            }
 9155                        }
 9156                        _ => false,
 9157                    }
 9158                })
 9159            })
 9160        })
 9161        .collect()
 9162}
 9163
 9164pub async fn find_existing_workspace(
 9165    abs_paths: &[PathBuf],
 9166    open_options: &OpenOptions,
 9167    location: &SerializedWorkspaceLocation,
 9168    cx: &mut AsyncApp,
 9169) -> (
 9170    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9171    OpenVisible,
 9172) {
 9173    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9174    let mut open_visible = OpenVisible::All;
 9175    let mut best_match = None;
 9176
 9177    if open_options.open_new_workspace != Some(true) {
 9178        cx.update(|cx| {
 9179            for window in workspace_windows_for_location(location, cx) {
 9180                if let Ok(multi_workspace) = window.read(cx) {
 9181                    for workspace in multi_workspace.workspaces() {
 9182                        let project = workspace.read(cx).project.read(cx);
 9183                        let m = project.visibility_for_paths(
 9184                            abs_paths,
 9185                            open_options.open_new_workspace == None,
 9186                            cx,
 9187                        );
 9188                        if m > best_match {
 9189                            existing = Some((window, workspace.clone()));
 9190                            best_match = m;
 9191                        } else if best_match.is_none()
 9192                            && open_options.open_new_workspace == Some(false)
 9193                        {
 9194                            existing = Some((window, workspace.clone()))
 9195                        }
 9196                    }
 9197                }
 9198            }
 9199        });
 9200
 9201        let all_paths_are_files = existing
 9202            .as_ref()
 9203            .and_then(|(_, target_workspace)| {
 9204                cx.update(|cx| {
 9205                    let workspace = target_workspace.read(cx);
 9206                    let project = workspace.project.read(cx);
 9207                    let path_style = workspace.path_style(cx);
 9208                    Some(!abs_paths.iter().any(|path| {
 9209                        let path = util::paths::SanitizedPath::new(path);
 9210                        project.worktrees(cx).any(|worktree| {
 9211                            let worktree = worktree.read(cx);
 9212                            let abs_path = worktree.abs_path();
 9213                            path_style
 9214                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9215                                .and_then(|rel| worktree.entry_for_path(&rel))
 9216                                .is_some_and(|e| e.is_dir())
 9217                        })
 9218                    }))
 9219                })
 9220            })
 9221            .unwrap_or(false);
 9222
 9223        if open_options.open_new_workspace.is_none()
 9224            && existing.is_some()
 9225            && open_options.wait
 9226            && all_paths_are_files
 9227        {
 9228            cx.update(|cx| {
 9229                let windows = workspace_windows_for_location(location, cx);
 9230                let window = cx
 9231                    .active_window()
 9232                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9233                    .filter(|window| windows.contains(window))
 9234                    .or_else(|| windows.into_iter().next());
 9235                if let Some(window) = window {
 9236                    if let Ok(multi_workspace) = window.read(cx) {
 9237                        let active_workspace = multi_workspace.workspace().clone();
 9238                        existing = Some((window, active_workspace));
 9239                        open_visible = OpenVisible::None;
 9240                    }
 9241                }
 9242            });
 9243        }
 9244    }
 9245    (existing, open_visible)
 9246}
 9247
 9248#[derive(Default, Clone)]
 9249pub struct OpenOptions {
 9250    pub visible: Option<OpenVisible>,
 9251    pub focus: Option<bool>,
 9252    pub open_new_workspace: Option<bool>,
 9253    pub wait: bool,
 9254    pub requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9255    pub open_mode: OpenMode,
 9256    pub env: Option<HashMap<String, String>>,
 9257    pub open_in_dev_container: bool,
 9258}
 9259
 9260/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9261/// or [`Workspace::open_workspace_for_paths`].
 9262pub struct OpenResult {
 9263    pub window: WindowHandle<MultiWorkspace>,
 9264    pub workspace: Entity<Workspace>,
 9265    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9266}
 9267
 9268/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9269pub fn open_workspace_by_id(
 9270    workspace_id: WorkspaceId,
 9271    app_state: Arc<AppState>,
 9272    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9273    cx: &mut App,
 9274) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9275    let project_handle = Project::local(
 9276        app_state.client.clone(),
 9277        app_state.node_runtime.clone(),
 9278        app_state.user_store.clone(),
 9279        app_state.languages.clone(),
 9280        app_state.fs.clone(),
 9281        None,
 9282        project::LocalProjectFlags {
 9283            init_worktree_trust: true,
 9284            ..project::LocalProjectFlags::default()
 9285        },
 9286        cx,
 9287    );
 9288
 9289    let db = WorkspaceDb::global(cx);
 9290    let kvp = db::kvp::KeyValueStore::global(cx);
 9291    cx.spawn(async move |cx| {
 9292        let serialized_workspace = db
 9293            .workspace_for_id(workspace_id)
 9294            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9295
 9296        let centered_layout = serialized_workspace.centered_layout;
 9297
 9298        let (window, workspace) = if let Some(window) = requesting_window {
 9299            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9300                let workspace = cx.new(|cx| {
 9301                    let mut workspace = Workspace::new(
 9302                        Some(workspace_id),
 9303                        project_handle.clone(),
 9304                        app_state.clone(),
 9305                        window,
 9306                        cx,
 9307                    );
 9308                    workspace.centered_layout = centered_layout;
 9309                    workspace
 9310                });
 9311                multi_workspace.add(workspace.clone(), &*window, cx);
 9312                workspace
 9313            })?;
 9314            (window, workspace)
 9315        } else {
 9316            let window_bounds_override = window_bounds_env_override();
 9317
 9318            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9319                (Some(WindowBounds::Windowed(bounds)), None)
 9320            } else if let Some(display) = serialized_workspace.display
 9321                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9322            {
 9323                (Some(bounds.0), Some(display))
 9324            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9325                (Some(bounds), Some(display))
 9326            } else {
 9327                (None, None)
 9328            };
 9329
 9330            let options = cx.update(|cx| {
 9331                let mut options = (app_state.build_window_options)(display, cx);
 9332                options.window_bounds = window_bounds;
 9333                options
 9334            });
 9335
 9336            let window = cx.open_window(options, {
 9337                let app_state = app_state.clone();
 9338                let project_handle = project_handle.clone();
 9339                move |window, cx| {
 9340                    let workspace = cx.new(|cx| {
 9341                        let mut workspace = Workspace::new(
 9342                            Some(workspace_id),
 9343                            project_handle,
 9344                            app_state,
 9345                            window,
 9346                            cx,
 9347                        );
 9348                        workspace.centered_layout = centered_layout;
 9349                        workspace
 9350                    });
 9351                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9352                }
 9353            })?;
 9354
 9355            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9356                multi_workspace.workspace().clone()
 9357            })?;
 9358
 9359            (window, workspace)
 9360        };
 9361
 9362        notify_if_database_failed(window, cx);
 9363
 9364        // Restore items from the serialized workspace
 9365        window
 9366            .update(cx, |_, window, cx| {
 9367                workspace.update(cx, |_workspace, cx| {
 9368                    open_items(Some(serialized_workspace), vec![], window, cx)
 9369                })
 9370            })?
 9371            .await?;
 9372
 9373        window.update(cx, |_, window, cx| {
 9374            workspace.update(cx, |workspace, cx| {
 9375                workspace.serialize_workspace(window, cx);
 9376            });
 9377        })?;
 9378
 9379        Ok(window)
 9380    })
 9381}
 9382
 9383#[allow(clippy::type_complexity)]
 9384pub fn open_paths(
 9385    abs_paths: &[PathBuf],
 9386    app_state: Arc<AppState>,
 9387    mut open_options: OpenOptions,
 9388    cx: &mut App,
 9389) -> Task<anyhow::Result<OpenResult>> {
 9390    let abs_paths = abs_paths.to_vec();
 9391    #[cfg(target_os = "windows")]
 9392    let wsl_path = abs_paths
 9393        .iter()
 9394        .find_map(|p| util::paths::WslPath::from_path(p));
 9395
 9396    cx.spawn(async move |cx| {
 9397        let (mut existing, mut open_visible) = find_existing_workspace(
 9398            &abs_paths,
 9399            &open_options,
 9400            &SerializedWorkspaceLocation::Local,
 9401            cx,
 9402        )
 9403        .await;
 9404
 9405        // Fallback: if no workspace contains the paths and all paths are files,
 9406        // prefer an existing local workspace window (active window first).
 9407        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9408            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9409            let all_metadatas = futures::future::join_all(all_paths)
 9410                .await
 9411                .into_iter()
 9412                .filter_map(|result| result.ok().flatten());
 9413
 9414            if all_metadatas.into_iter().all(|file| !file.is_dir) {
 9415                cx.update(|cx| {
 9416                    let windows = workspace_windows_for_location(
 9417                        &SerializedWorkspaceLocation::Local,
 9418                        cx,
 9419                    );
 9420                    let window = cx
 9421                        .active_window()
 9422                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9423                        .filter(|window| windows.contains(window))
 9424                        .or_else(|| windows.into_iter().next());
 9425                    if let Some(window) = window {
 9426                        if let Ok(multi_workspace) = window.read(cx) {
 9427                            let active_workspace = multi_workspace.workspace().clone();
 9428                            existing = Some((window, active_workspace));
 9429                            open_visible = OpenVisible::None;
 9430                        }
 9431                    }
 9432                });
 9433            }
 9434        }
 9435
 9436        // Fallback for directories: when no flag is specified and no existing
 9437        // workspace matched, add the directory as a new workspace in the
 9438        // active window's MultiWorkspace (instead of opening a new window).
 9439        if open_options.open_new_workspace.is_none() && existing.is_none() {
 9440            let target_window = cx.update(|cx| {
 9441                let windows = workspace_windows_for_location(
 9442                    &SerializedWorkspaceLocation::Local,
 9443                    cx,
 9444                );
 9445                let window = cx
 9446                    .active_window()
 9447                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9448                    .filter(|window| windows.contains(window))
 9449                    .or_else(|| windows.into_iter().next());
 9450                window.filter(|window| {
 9451                    window.read(cx).is_ok_and(|mw| mw.multi_workspace_enabled(cx))
 9452                })
 9453            });
 9454
 9455            if let Some(window) = target_window {
 9456                open_options.requesting_window = Some(window);
 9457                window
 9458                    .update(cx, |multi_workspace, _, cx| {
 9459                        multi_workspace.open_sidebar(cx);
 9460                    })
 9461                    .log_err();
 9462            }
 9463        }
 9464
 9465        let open_in_dev_container = open_options.open_in_dev_container;
 9466
 9467        let result = if let Some((existing, target_workspace)) = existing {
 9468            let open_task = existing
 9469                .update(cx, |multi_workspace, window, cx| {
 9470                    window.activate_window();
 9471                    multi_workspace.activate(target_workspace.clone(), window, cx);
 9472                    target_workspace.update(cx, |workspace, cx| {
 9473                        if open_in_dev_container {
 9474                            workspace.set_open_in_dev_container(true);
 9475                        }
 9476                        workspace.open_paths(
 9477                            abs_paths,
 9478                            OpenOptions {
 9479                                visible: Some(open_visible),
 9480                                ..Default::default()
 9481                            },
 9482                            None,
 9483                            window,
 9484                            cx,
 9485                        )
 9486                    })
 9487                })?
 9488                .await;
 9489
 9490            _ = existing.update(cx, |multi_workspace, _, cx| {
 9491                let workspace = multi_workspace.workspace().clone();
 9492                workspace.update(cx, |workspace, cx| {
 9493                    for item in open_task.iter().flatten() {
 9494                        if let Err(e) = item {
 9495                            workspace.show_error(&e, cx);
 9496                        }
 9497                    }
 9498                });
 9499            });
 9500
 9501            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9502        } else {
 9503            let init = if open_in_dev_container {
 9504                Some(Box::new(|workspace: &mut Workspace, _window: &mut Window, _cx: &mut Context<Workspace>| {
 9505                    workspace.set_open_in_dev_container(true);
 9506                }) as Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>)
 9507            } else {
 9508                None
 9509            };
 9510            let result = cx
 9511                .update(move |cx| {
 9512                    Workspace::new_local(
 9513                        abs_paths,
 9514                        app_state.clone(),
 9515                        open_options.requesting_window,
 9516                        open_options.env,
 9517                        init,
 9518                        open_options.open_mode,
 9519                        cx,
 9520                    )
 9521                })
 9522                .await;
 9523
 9524            if let Ok(ref result) = result {
 9525                result.window
 9526                    .update(cx, |_, window, _cx| {
 9527                        window.activate_window();
 9528                    })
 9529                    .log_err();
 9530            }
 9531
 9532            result
 9533        };
 9534
 9535        #[cfg(target_os = "windows")]
 9536        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9537            && let Ok(ref result) = result
 9538        {
 9539            result.window
 9540                .update(cx, move |multi_workspace, _window, cx| {
 9541                    struct OpenInWsl;
 9542                    let workspace = multi_workspace.workspace().clone();
 9543                    workspace.update(cx, |workspace, cx| {
 9544                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9545                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9546                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9547                            cx.new(move |cx| {
 9548                                MessageNotification::new(msg, cx)
 9549                                    .primary_message("Open in WSL")
 9550                                    .primary_icon(IconName::FolderOpen)
 9551                                    .primary_on_click(move |window, cx| {
 9552                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9553                                                distro: remote::WslConnectionOptions {
 9554                                                        distro_name: distro.clone(),
 9555                                                    user: None,
 9556                                                },
 9557                                                paths: vec![path.clone().into()],
 9558                                            }), cx)
 9559                                    })
 9560                            })
 9561                        });
 9562                    });
 9563                })
 9564                .unwrap();
 9565        };
 9566        result
 9567    })
 9568}
 9569
 9570pub fn open_new(
 9571    open_options: OpenOptions,
 9572    app_state: Arc<AppState>,
 9573    cx: &mut App,
 9574    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9575) -> Task<anyhow::Result<()>> {
 9576    let addition = open_options.open_mode;
 9577    let task = Workspace::new_local(
 9578        Vec::new(),
 9579        app_state,
 9580        open_options.requesting_window,
 9581        open_options.env,
 9582        Some(Box::new(init)),
 9583        addition,
 9584        cx,
 9585    );
 9586    cx.spawn(async move |cx| {
 9587        let OpenResult { window, .. } = task.await?;
 9588        window
 9589            .update(cx, |_, window, _cx| {
 9590                window.activate_window();
 9591            })
 9592            .ok();
 9593        Ok(())
 9594    })
 9595}
 9596
 9597pub fn create_and_open_local_file(
 9598    path: &'static Path,
 9599    window: &mut Window,
 9600    cx: &mut Context<Workspace>,
 9601    default_content: impl 'static + Send + FnOnce() -> Rope,
 9602) -> Task<Result<Box<dyn ItemHandle>>> {
 9603    cx.spawn_in(window, async move |workspace, cx| {
 9604        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9605        if !fs.is_file(path).await {
 9606            fs.create_file(path, Default::default()).await?;
 9607            fs.save(path, &default_content(), Default::default())
 9608                .await?;
 9609        }
 9610
 9611        workspace
 9612            .update_in(cx, |workspace, window, cx| {
 9613                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9614                    let path = workspace
 9615                        .project
 9616                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9617                    cx.spawn_in(window, async move |workspace, cx| {
 9618                        let path = path.await?;
 9619
 9620                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9621
 9622                        let mut items = workspace
 9623                            .update_in(cx, |workspace, window, cx| {
 9624                                workspace.open_paths(
 9625                                    vec![path.to_path_buf()],
 9626                                    OpenOptions {
 9627                                        visible: Some(OpenVisible::None),
 9628                                        ..Default::default()
 9629                                    },
 9630                                    None,
 9631                                    window,
 9632                                    cx,
 9633                                )
 9634                            })?
 9635                            .await;
 9636                        let item = items.pop().flatten();
 9637                        item.with_context(|| format!("path {path:?} is not a file"))?
 9638                    })
 9639                })
 9640            })?
 9641            .await?
 9642            .await
 9643    })
 9644}
 9645
 9646pub fn open_remote_project_with_new_connection(
 9647    window: WindowHandle<MultiWorkspace>,
 9648    remote_connection: Arc<dyn RemoteConnection>,
 9649    cancel_rx: oneshot::Receiver<()>,
 9650    delegate: Arc<dyn RemoteClientDelegate>,
 9651    app_state: Arc<AppState>,
 9652    paths: Vec<PathBuf>,
 9653    cx: &mut App,
 9654) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9655    cx.spawn(async move |cx| {
 9656        let (workspace_id, serialized_workspace) =
 9657            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9658                .await?;
 9659
 9660        let session = match cx
 9661            .update(|cx| {
 9662                remote::RemoteClient::new(
 9663                    ConnectionIdentifier::Workspace(workspace_id.0),
 9664                    remote_connection,
 9665                    cancel_rx,
 9666                    delegate,
 9667                    cx,
 9668                )
 9669            })
 9670            .await?
 9671        {
 9672            Some(result) => result,
 9673            None => return Ok(Vec::new()),
 9674        };
 9675
 9676        let project = cx.update(|cx| {
 9677            project::Project::remote(
 9678                session,
 9679                app_state.client.clone(),
 9680                app_state.node_runtime.clone(),
 9681                app_state.user_store.clone(),
 9682                app_state.languages.clone(),
 9683                app_state.fs.clone(),
 9684                true,
 9685                cx,
 9686            )
 9687        });
 9688
 9689        open_remote_project_inner(
 9690            project,
 9691            paths,
 9692            workspace_id,
 9693            serialized_workspace,
 9694            app_state,
 9695            window,
 9696            cx,
 9697        )
 9698        .await
 9699    })
 9700}
 9701
 9702pub fn open_remote_project_with_existing_connection(
 9703    connection_options: RemoteConnectionOptions,
 9704    project: Entity<Project>,
 9705    paths: Vec<PathBuf>,
 9706    app_state: Arc<AppState>,
 9707    window: WindowHandle<MultiWorkspace>,
 9708    cx: &mut AsyncApp,
 9709) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9710    cx.spawn(async move |cx| {
 9711        let (workspace_id, serialized_workspace) =
 9712            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9713
 9714        open_remote_project_inner(
 9715            project,
 9716            paths,
 9717            workspace_id,
 9718            serialized_workspace,
 9719            app_state,
 9720            window,
 9721            cx,
 9722        )
 9723        .await
 9724    })
 9725}
 9726
 9727async fn open_remote_project_inner(
 9728    project: Entity<Project>,
 9729    paths: Vec<PathBuf>,
 9730    workspace_id: WorkspaceId,
 9731    serialized_workspace: Option<SerializedWorkspace>,
 9732    app_state: Arc<AppState>,
 9733    window: WindowHandle<MultiWorkspace>,
 9734    cx: &mut AsyncApp,
 9735) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9736    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9737    let toolchains = db.toolchains(workspace_id).await?;
 9738    for (toolchain, worktree_path, path) in toolchains {
 9739        project
 9740            .update(cx, |this, cx| {
 9741                let Some(worktree_id) =
 9742                    this.find_worktree(&worktree_path, cx)
 9743                        .and_then(|(worktree, rel_path)| {
 9744                            if rel_path.is_empty() {
 9745                                Some(worktree.read(cx).id())
 9746                            } else {
 9747                                None
 9748                            }
 9749                        })
 9750                else {
 9751                    return Task::ready(None);
 9752                };
 9753
 9754                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9755            })
 9756            .await;
 9757    }
 9758    let mut project_paths_to_open = vec![];
 9759    let mut project_path_errors = vec![];
 9760
 9761    for path in paths {
 9762        let result = cx
 9763            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9764            .await;
 9765        match result {
 9766            Ok((_, project_path)) => {
 9767                project_paths_to_open.push((path.clone(), Some(project_path)));
 9768            }
 9769            Err(error) => {
 9770                project_path_errors.push(error);
 9771            }
 9772        };
 9773    }
 9774
 9775    if project_paths_to_open.is_empty() {
 9776        return Err(project_path_errors.pop().context("no paths given")?);
 9777    }
 9778
 9779    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9780        telemetry::event!("SSH Project Opened");
 9781
 9782        let new_workspace = cx.new(|cx| {
 9783            let mut workspace =
 9784                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9785            workspace.update_history(cx);
 9786
 9787            if let Some(ref serialized) = serialized_workspace {
 9788                workspace.centered_layout = serialized.centered_layout;
 9789            }
 9790
 9791            workspace
 9792        });
 9793
 9794        multi_workspace.activate(new_workspace.clone(), window, cx);
 9795        new_workspace
 9796    })?;
 9797
 9798    let items = window
 9799        .update(cx, |_, window, cx| {
 9800            window.activate_window();
 9801            workspace.update(cx, |_workspace, cx| {
 9802                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9803            })
 9804        })?
 9805        .await?;
 9806
 9807    workspace.update(cx, |workspace, cx| {
 9808        for error in project_path_errors {
 9809            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9810                if let Some(path) = error.error_tag("path") {
 9811                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9812                }
 9813            } else {
 9814                workspace.show_error(&error, cx)
 9815            }
 9816        }
 9817    });
 9818
 9819    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9820}
 9821
 9822fn deserialize_remote_project(
 9823    connection_options: RemoteConnectionOptions,
 9824    paths: Vec<PathBuf>,
 9825    cx: &AsyncApp,
 9826) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9827    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9828    cx.background_spawn(async move {
 9829        let remote_connection_id = db
 9830            .get_or_create_remote_connection(connection_options)
 9831            .await?;
 9832
 9833        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9834
 9835        let workspace_id = if let Some(workspace_id) =
 9836            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9837        {
 9838            workspace_id
 9839        } else {
 9840            db.next_id().await?
 9841        };
 9842
 9843        Ok((workspace_id, serialized_workspace))
 9844    })
 9845}
 9846
 9847pub fn join_in_room_project(
 9848    project_id: u64,
 9849    follow_user_id: u64,
 9850    app_state: Arc<AppState>,
 9851    cx: &mut App,
 9852) -> Task<Result<()>> {
 9853    let windows = cx.windows();
 9854    cx.spawn(async move |cx| {
 9855        let existing_window_and_workspace: Option<(
 9856            WindowHandle<MultiWorkspace>,
 9857            Entity<Workspace>,
 9858        )> = windows.into_iter().find_map(|window_handle| {
 9859            window_handle
 9860                .downcast::<MultiWorkspace>()
 9861                .and_then(|window_handle| {
 9862                    window_handle
 9863                        .update(cx, |multi_workspace, _window, cx| {
 9864                            for workspace in multi_workspace.workspaces() {
 9865                                if workspace.read(cx).project().read(cx).remote_id()
 9866                                    == Some(project_id)
 9867                                {
 9868                                    return Some((window_handle, workspace.clone()));
 9869                                }
 9870                            }
 9871                            None
 9872                        })
 9873                        .unwrap_or(None)
 9874                })
 9875        });
 9876
 9877        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9878            existing_window_and_workspace
 9879        {
 9880            existing_window
 9881                .update(cx, |multi_workspace, window, cx| {
 9882                    multi_workspace.activate(target_workspace, window, cx);
 9883                })
 9884                .ok();
 9885            existing_window
 9886        } else {
 9887            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9888            let project = cx
 9889                .update(|cx| {
 9890                    active_call.0.join_project(
 9891                        project_id,
 9892                        app_state.languages.clone(),
 9893                        app_state.fs.clone(),
 9894                        cx,
 9895                    )
 9896                })
 9897                .await?;
 9898
 9899            let window_bounds_override = window_bounds_env_override();
 9900            cx.update(|cx| {
 9901                let mut options = (app_state.build_window_options)(None, cx);
 9902                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9903                cx.open_window(options, |window, cx| {
 9904                    let workspace = cx.new(|cx| {
 9905                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9906                    });
 9907                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9908                })
 9909            })?
 9910        };
 9911
 9912        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9913            cx.activate(true);
 9914            window.activate_window();
 9915
 9916            // We set the active workspace above, so this is the correct workspace.
 9917            let workspace = multi_workspace.workspace().clone();
 9918            workspace.update(cx, |workspace, cx| {
 9919                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
 9920                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
 9921                    .or_else(|| {
 9922                        // If we couldn't follow the given user, follow the host instead.
 9923                        let collaborator = workspace
 9924                            .project()
 9925                            .read(cx)
 9926                            .collaborators()
 9927                            .values()
 9928                            .find(|collaborator| collaborator.is_host)?;
 9929                        Some(collaborator.peer_id)
 9930                    });
 9931
 9932                if let Some(follow_peer_id) = follow_peer_id {
 9933                    workspace.follow(follow_peer_id, window, cx);
 9934                }
 9935            });
 9936        })?;
 9937
 9938        anyhow::Ok(())
 9939    })
 9940}
 9941
 9942pub fn reload(cx: &mut App) {
 9943    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9944    let mut workspace_windows = cx
 9945        .windows()
 9946        .into_iter()
 9947        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9948        .collect::<Vec<_>>();
 9949
 9950    // If multiple windows have unsaved changes, and need a save prompt,
 9951    // prompt in the active window before switching to a different window.
 9952    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9953
 9954    let mut prompt = None;
 9955    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9956        prompt = window
 9957            .update(cx, |_, window, cx| {
 9958                window.prompt(
 9959                    PromptLevel::Info,
 9960                    "Are you sure you want to restart?",
 9961                    None,
 9962                    &["Restart", "Cancel"],
 9963                    cx,
 9964                )
 9965            })
 9966            .ok();
 9967    }
 9968
 9969    cx.spawn(async move |cx| {
 9970        if let Some(prompt) = prompt {
 9971            let answer = prompt.await?;
 9972            if answer != 0 {
 9973                return anyhow::Ok(());
 9974            }
 9975        }
 9976
 9977        // If the user cancels any save prompt, then keep the app open.
 9978        for window in workspace_windows {
 9979            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9980                let workspace = multi_workspace.workspace().clone();
 9981                workspace.update(cx, |workspace, cx| {
 9982                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9983                })
 9984            }) && !should_close.await?
 9985            {
 9986                return anyhow::Ok(());
 9987            }
 9988        }
 9989        cx.update(|cx| cx.restart());
 9990        anyhow::Ok(())
 9991    })
 9992    .detach_and_log_err(cx);
 9993}
 9994
 9995fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9996    let mut parts = value.split(',');
 9997    let x: usize = parts.next()?.parse().ok()?;
 9998    let y: usize = parts.next()?.parse().ok()?;
 9999    Some(point(px(x as f32), px(y as f32)))
10000}
10001
10002fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
10003    let mut parts = value.split(',');
10004    let width: usize = parts.next()?.parse().ok()?;
10005    let height: usize = parts.next()?.parse().ok()?;
10006    Some(size(px(width as f32), px(height as f32)))
10007}
10008
10009/// Add client-side decorations (rounded corners, shadows, resize handling) when
10010/// appropriate.
10011///
10012/// The `border_radius_tiling` parameter allows overriding which corners get
10013/// rounded, independently of the actual window tiling state. This is used
10014/// specifically for the workspace switcher sidebar: when the sidebar is open,
10015/// we want square corners on the left (so the sidebar appears flush with the
10016/// window edge) but we still need the shadow padding for proper visual
10017/// appearance. Unlike actual window tiling, this only affects border radius -
10018/// not padding or shadows.
10019pub fn client_side_decorations(
10020    element: impl IntoElement,
10021    window: &mut Window,
10022    cx: &mut App,
10023    border_radius_tiling: Tiling,
10024) -> Stateful<Div> {
10025    const BORDER_SIZE: Pixels = px(1.0);
10026    let decorations = window.window_decorations();
10027    let tiling = match decorations {
10028        Decorations::Server => Tiling::default(),
10029        Decorations::Client { tiling } => tiling,
10030    };
10031
10032    match decorations {
10033        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
10034        Decorations::Server => window.set_client_inset(px(0.0)),
10035    }
10036
10037    struct GlobalResizeEdge(ResizeEdge);
10038    impl Global for GlobalResizeEdge {}
10039
10040    div()
10041        .id("window-backdrop")
10042        .bg(transparent_black())
10043        .map(|div| match decorations {
10044            Decorations::Server => div,
10045            Decorations::Client { .. } => div
10046                .when(
10047                    !(tiling.top
10048                        || tiling.right
10049                        || border_radius_tiling.top
10050                        || border_radius_tiling.right),
10051                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10052                )
10053                .when(
10054                    !(tiling.top
10055                        || tiling.left
10056                        || border_radius_tiling.top
10057                        || border_radius_tiling.left),
10058                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10059                )
10060                .when(
10061                    !(tiling.bottom
10062                        || tiling.right
10063                        || border_radius_tiling.bottom
10064                        || border_radius_tiling.right),
10065                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10066                )
10067                .when(
10068                    !(tiling.bottom
10069                        || tiling.left
10070                        || border_radius_tiling.bottom
10071                        || border_radius_tiling.left),
10072                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10073                )
10074                .when(!tiling.top, |div| {
10075                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
10076                })
10077                .when(!tiling.bottom, |div| {
10078                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
10079                })
10080                .when(!tiling.left, |div| {
10081                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
10082                })
10083                .when(!tiling.right, |div| {
10084                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
10085                })
10086                .on_mouse_move(move |e, window, cx| {
10087                    let size = window.window_bounds().get_bounds().size;
10088                    let pos = e.position;
10089
10090                    let new_edge =
10091                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
10092
10093                    let edge = cx.try_global::<GlobalResizeEdge>();
10094                    if new_edge != edge.map(|edge| edge.0) {
10095                        window
10096                            .window_handle()
10097                            .update(cx, |workspace, _, cx| {
10098                                cx.notify(workspace.entity_id());
10099                            })
10100                            .ok();
10101                    }
10102                })
10103                .on_mouse_down(MouseButton::Left, move |e, window, _| {
10104                    let size = window.window_bounds().get_bounds().size;
10105                    let pos = e.position;
10106
10107                    let edge = match resize_edge(
10108                        pos,
10109                        theme::CLIENT_SIDE_DECORATION_SHADOW,
10110                        size,
10111                        tiling,
10112                    ) {
10113                        Some(value) => value,
10114                        None => return,
10115                    };
10116
10117                    window.start_window_resize(edge);
10118                }),
10119        })
10120        .size_full()
10121        .child(
10122            div()
10123                .cursor(CursorStyle::Arrow)
10124                .map(|div| match decorations {
10125                    Decorations::Server => div,
10126                    Decorations::Client { .. } => div
10127                        .border_color(cx.theme().colors().border)
10128                        .when(
10129                            !(tiling.top
10130                                || tiling.right
10131                                || border_radius_tiling.top
10132                                || border_radius_tiling.right),
10133                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10134                        )
10135                        .when(
10136                            !(tiling.top
10137                                || tiling.left
10138                                || border_radius_tiling.top
10139                                || border_radius_tiling.left),
10140                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10141                        )
10142                        .when(
10143                            !(tiling.bottom
10144                                || tiling.right
10145                                || border_radius_tiling.bottom
10146                                || border_radius_tiling.right),
10147                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10148                        )
10149                        .when(
10150                            !(tiling.bottom
10151                                || tiling.left
10152                                || border_radius_tiling.bottom
10153                                || border_radius_tiling.left),
10154                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10155                        )
10156                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
10157                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
10158                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
10159                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
10160                        .when(!tiling.is_tiled(), |div| {
10161                            div.shadow(vec![gpui::BoxShadow {
10162                                color: Hsla {
10163                                    h: 0.,
10164                                    s: 0.,
10165                                    l: 0.,
10166                                    a: 0.4,
10167                                },
10168                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
10169                                spread_radius: px(0.),
10170                                offset: point(px(0.0), px(0.0)),
10171                            }])
10172                        }),
10173                })
10174                .on_mouse_move(|_e, _, cx| {
10175                    cx.stop_propagation();
10176                })
10177                .size_full()
10178                .child(element),
10179        )
10180        .map(|div| match decorations {
10181            Decorations::Server => div,
10182            Decorations::Client { tiling, .. } => div.child(
10183                canvas(
10184                    |_bounds, window, _| {
10185                        window.insert_hitbox(
10186                            Bounds::new(
10187                                point(px(0.0), px(0.0)),
10188                                window.window_bounds().get_bounds().size,
10189                            ),
10190                            HitboxBehavior::Normal,
10191                        )
10192                    },
10193                    move |_bounds, hitbox, window, cx| {
10194                        let mouse = window.mouse_position();
10195                        let size = window.window_bounds().get_bounds().size;
10196                        let Some(edge) =
10197                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10198                        else {
10199                            return;
10200                        };
10201                        cx.set_global(GlobalResizeEdge(edge));
10202                        window.set_cursor_style(
10203                            match edge {
10204                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10205                                ResizeEdge::Left | ResizeEdge::Right => {
10206                                    CursorStyle::ResizeLeftRight
10207                                }
10208                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10209                                    CursorStyle::ResizeUpLeftDownRight
10210                                }
10211                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10212                                    CursorStyle::ResizeUpRightDownLeft
10213                                }
10214                            },
10215                            &hitbox,
10216                        );
10217                    },
10218                )
10219                .size_full()
10220                .absolute(),
10221            ),
10222        })
10223}
10224
10225fn resize_edge(
10226    pos: Point<Pixels>,
10227    shadow_size: Pixels,
10228    window_size: Size<Pixels>,
10229    tiling: Tiling,
10230) -> Option<ResizeEdge> {
10231    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10232    if bounds.contains(&pos) {
10233        return None;
10234    }
10235
10236    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10237    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10238    if !tiling.top && top_left_bounds.contains(&pos) {
10239        return Some(ResizeEdge::TopLeft);
10240    }
10241
10242    let top_right_bounds = Bounds::new(
10243        Point::new(window_size.width - corner_size.width, px(0.)),
10244        corner_size,
10245    );
10246    if !tiling.top && top_right_bounds.contains(&pos) {
10247        return Some(ResizeEdge::TopRight);
10248    }
10249
10250    let bottom_left_bounds = Bounds::new(
10251        Point::new(px(0.), window_size.height - corner_size.height),
10252        corner_size,
10253    );
10254    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10255        return Some(ResizeEdge::BottomLeft);
10256    }
10257
10258    let bottom_right_bounds = Bounds::new(
10259        Point::new(
10260            window_size.width - corner_size.width,
10261            window_size.height - corner_size.height,
10262        ),
10263        corner_size,
10264    );
10265    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10266        return Some(ResizeEdge::BottomRight);
10267    }
10268
10269    if !tiling.top && pos.y < shadow_size {
10270        Some(ResizeEdge::Top)
10271    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10272        Some(ResizeEdge::Bottom)
10273    } else if !tiling.left && pos.x < shadow_size {
10274        Some(ResizeEdge::Left)
10275    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10276        Some(ResizeEdge::Right)
10277    } else {
10278        None
10279    }
10280}
10281
10282fn join_pane_into_active(
10283    active_pane: &Entity<Pane>,
10284    pane: &Entity<Pane>,
10285    window: &mut Window,
10286    cx: &mut App,
10287) {
10288    if pane == active_pane {
10289    } else if pane.read(cx).items_len() == 0 {
10290        pane.update(cx, |_, cx| {
10291            cx.emit(pane::Event::Remove {
10292                focus_on_pane: None,
10293            });
10294        })
10295    } else {
10296        move_all_items(pane, active_pane, window, cx);
10297    }
10298}
10299
10300fn move_all_items(
10301    from_pane: &Entity<Pane>,
10302    to_pane: &Entity<Pane>,
10303    window: &mut Window,
10304    cx: &mut App,
10305) {
10306    let destination_is_different = from_pane != to_pane;
10307    let mut moved_items = 0;
10308    for (item_ix, item_handle) in from_pane
10309        .read(cx)
10310        .items()
10311        .enumerate()
10312        .map(|(ix, item)| (ix, item.clone()))
10313        .collect::<Vec<_>>()
10314    {
10315        let ix = item_ix - moved_items;
10316        if destination_is_different {
10317            // Close item from previous pane
10318            from_pane.update(cx, |source, cx| {
10319                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10320            });
10321            moved_items += 1;
10322        }
10323
10324        // This automatically removes duplicate items in the pane
10325        to_pane.update(cx, |destination, cx| {
10326            destination.add_item(item_handle, true, true, None, window, cx);
10327            window.focus(&destination.focus_handle(cx), cx)
10328        });
10329    }
10330}
10331
10332pub fn move_item(
10333    source: &Entity<Pane>,
10334    destination: &Entity<Pane>,
10335    item_id_to_move: EntityId,
10336    destination_index: usize,
10337    activate: bool,
10338    window: &mut Window,
10339    cx: &mut App,
10340) {
10341    let Some((item_ix, item_handle)) = source
10342        .read(cx)
10343        .items()
10344        .enumerate()
10345        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10346        .map(|(ix, item)| (ix, item.clone()))
10347    else {
10348        // Tab was closed during drag
10349        return;
10350    };
10351
10352    if source != destination {
10353        // Close item from previous pane
10354        source.update(cx, |source, cx| {
10355            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10356        });
10357    }
10358
10359    // This automatically removes duplicate items in the pane
10360    destination.update(cx, |destination, cx| {
10361        destination.add_item_inner(
10362            item_handle,
10363            activate,
10364            activate,
10365            activate,
10366            Some(destination_index),
10367            window,
10368            cx,
10369        );
10370        if activate {
10371            window.focus(&destination.focus_handle(cx), cx)
10372        }
10373    });
10374}
10375
10376pub fn move_active_item(
10377    source: &Entity<Pane>,
10378    destination: &Entity<Pane>,
10379    focus_destination: bool,
10380    close_if_empty: bool,
10381    window: &mut Window,
10382    cx: &mut App,
10383) {
10384    if source == destination {
10385        return;
10386    }
10387    let Some(active_item) = source.read(cx).active_item() else {
10388        return;
10389    };
10390    source.update(cx, |source_pane, cx| {
10391        let item_id = active_item.item_id();
10392        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10393        destination.update(cx, |target_pane, cx| {
10394            target_pane.add_item(
10395                active_item,
10396                focus_destination,
10397                focus_destination,
10398                Some(target_pane.items_len()),
10399                window,
10400                cx,
10401            );
10402        });
10403    });
10404}
10405
10406pub fn clone_active_item(
10407    workspace_id: Option<WorkspaceId>,
10408    source: &Entity<Pane>,
10409    destination: &Entity<Pane>,
10410    focus_destination: bool,
10411    window: &mut Window,
10412    cx: &mut App,
10413) {
10414    if source == destination {
10415        return;
10416    }
10417    let Some(active_item) = source.read(cx).active_item() else {
10418        return;
10419    };
10420    if !active_item.can_split(cx) {
10421        return;
10422    }
10423    let destination = destination.downgrade();
10424    let task = active_item.clone_on_split(workspace_id, window, cx);
10425    window
10426        .spawn(cx, async move |cx| {
10427            let Some(clone) = task.await else {
10428                return;
10429            };
10430            destination
10431                .update_in(cx, |target_pane, window, cx| {
10432                    target_pane.add_item(
10433                        clone,
10434                        focus_destination,
10435                        focus_destination,
10436                        Some(target_pane.items_len()),
10437                        window,
10438                        cx,
10439                    );
10440                })
10441                .log_err();
10442        })
10443        .detach();
10444}
10445
10446#[derive(Debug)]
10447pub struct WorkspacePosition {
10448    pub window_bounds: Option<WindowBounds>,
10449    pub display: Option<Uuid>,
10450    pub centered_layout: bool,
10451}
10452
10453pub fn remote_workspace_position_from_db(
10454    connection_options: RemoteConnectionOptions,
10455    paths_to_open: &[PathBuf],
10456    cx: &App,
10457) -> Task<Result<WorkspacePosition>> {
10458    let paths = paths_to_open.to_vec();
10459    let db = WorkspaceDb::global(cx);
10460    let kvp = db::kvp::KeyValueStore::global(cx);
10461
10462    cx.background_spawn(async move {
10463        let remote_connection_id = db
10464            .get_or_create_remote_connection(connection_options)
10465            .await
10466            .context("fetching serialized ssh project")?;
10467        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10468
10469        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10470            (Some(WindowBounds::Windowed(bounds)), None)
10471        } else {
10472            let restorable_bounds = serialized_workspace
10473                .as_ref()
10474                .and_then(|workspace| {
10475                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10476                })
10477                .or_else(|| persistence::read_default_window_bounds(&kvp));
10478
10479            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10480                (Some(serialized_bounds), Some(serialized_display))
10481            } else {
10482                (None, None)
10483            }
10484        };
10485
10486        let centered_layout = serialized_workspace
10487            .as_ref()
10488            .map(|w| w.centered_layout)
10489            .unwrap_or(false);
10490
10491        Ok(WorkspacePosition {
10492            window_bounds,
10493            display,
10494            centered_layout,
10495        })
10496    })
10497}
10498
10499pub fn with_active_or_new_workspace(
10500    cx: &mut App,
10501    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10502) {
10503    match cx
10504        .active_window()
10505        .and_then(|w| w.downcast::<MultiWorkspace>())
10506    {
10507        Some(multi_workspace) => {
10508            cx.defer(move |cx| {
10509                multi_workspace
10510                    .update(cx, |multi_workspace, window, cx| {
10511                        let workspace = multi_workspace.workspace().clone();
10512                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10513                    })
10514                    .log_err();
10515            });
10516        }
10517        None => {
10518            let app_state = AppState::global(cx);
10519            open_new(
10520                OpenOptions::default(),
10521                app_state,
10522                cx,
10523                move |workspace, window, cx| f(workspace, window, cx),
10524            )
10525            .detach_and_log_err(cx);
10526        }
10527    }
10528}
10529
10530/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10531/// key. This migration path only runs once per panel per workspace.
10532fn load_legacy_panel_size(
10533    panel_key: &str,
10534    dock_position: DockPosition,
10535    workspace: &Workspace,
10536    cx: &mut App,
10537) -> Option<Pixels> {
10538    #[derive(Deserialize)]
10539    struct LegacyPanelState {
10540        #[serde(default)]
10541        width: Option<Pixels>,
10542        #[serde(default)]
10543        height: Option<Pixels>,
10544    }
10545
10546    let workspace_id = workspace
10547        .database_id()
10548        .map(|id| i64::from(id).to_string())
10549        .or_else(|| workspace.session_id())?;
10550
10551    let legacy_key = match panel_key {
10552        "ProjectPanel" => {
10553            format!("{}-{:?}", "ProjectPanel", workspace_id)
10554        }
10555        "OutlinePanel" => {
10556            format!("{}-{:?}", "OutlinePanel", workspace_id)
10557        }
10558        "GitPanel" => {
10559            format!("{}-{:?}", "GitPanel", workspace_id)
10560        }
10561        "TerminalPanel" => {
10562            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10563        }
10564        _ => return None,
10565    };
10566
10567    let kvp = db::kvp::KeyValueStore::global(cx);
10568    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10569    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10570    let size = match dock_position {
10571        DockPosition::Bottom => state.height,
10572        DockPosition::Left | DockPosition::Right => state.width,
10573    }?;
10574
10575    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10576        .detach_and_log_err(cx);
10577
10578    Some(size)
10579}
10580
10581#[cfg(test)]
10582mod tests {
10583    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10584
10585    use super::*;
10586    use crate::{
10587        dock::{PanelEvent, test::TestPanel},
10588        item::{
10589            ItemBufferKind, ItemEvent,
10590            test::{TestItem, TestProjectItem},
10591        },
10592    };
10593    use fs::FakeFs;
10594    use gpui::{
10595        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10596        UpdateGlobal, VisualTestContext, px,
10597    };
10598    use project::{Project, ProjectEntryId};
10599    use serde_json::json;
10600    use settings::SettingsStore;
10601    use util::path;
10602    use util::rel_path::rel_path;
10603
10604    #[gpui::test]
10605    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10606        init_test(cx);
10607
10608        let fs = FakeFs::new(cx.executor());
10609        let project = Project::test(fs, [], cx).await;
10610        let (workspace, cx) =
10611            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10612
10613        // Adding an item with no ambiguity renders the tab without detail.
10614        let item1 = cx.new(|cx| {
10615            let mut item = TestItem::new(cx);
10616            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10617            item
10618        });
10619        workspace.update_in(cx, |workspace, window, cx| {
10620            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10621        });
10622        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10623
10624        // Adding an item that creates ambiguity increases the level of detail on
10625        // both tabs.
10626        let item2 = cx.new_window_entity(|_window, cx| {
10627            let mut item = TestItem::new(cx);
10628            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10629            item
10630        });
10631        workspace.update_in(cx, |workspace, window, cx| {
10632            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10633        });
10634        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10635        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10636
10637        // Adding an item that creates ambiguity increases the level of detail only
10638        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10639        // we stop at the highest detail available.
10640        let item3 = cx.new(|cx| {
10641            let mut item = TestItem::new(cx);
10642            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10643            item
10644        });
10645        workspace.update_in(cx, |workspace, window, cx| {
10646            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10647        });
10648        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10649        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10650        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10651    }
10652
10653    #[gpui::test]
10654    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10655        init_test(cx);
10656
10657        let fs = FakeFs::new(cx.executor());
10658        fs.insert_tree(
10659            "/root1",
10660            json!({
10661                "one.txt": "",
10662                "two.txt": "",
10663            }),
10664        )
10665        .await;
10666        fs.insert_tree(
10667            "/root2",
10668            json!({
10669                "three.txt": "",
10670            }),
10671        )
10672        .await;
10673
10674        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10675        let (workspace, cx) =
10676            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10677        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10678        let worktree_id = project.update(cx, |project, cx| {
10679            project.worktrees(cx).next().unwrap().read(cx).id()
10680        });
10681
10682        let item1 = cx.new(|cx| {
10683            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10684        });
10685        let item2 = cx.new(|cx| {
10686            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10687        });
10688
10689        // Add an item to an empty pane
10690        workspace.update_in(cx, |workspace, window, cx| {
10691            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10692        });
10693        project.update(cx, |project, cx| {
10694            assert_eq!(
10695                project.active_entry(),
10696                project
10697                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10698                    .map(|e| e.id)
10699            );
10700        });
10701        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10702
10703        // Add a second item to a non-empty pane
10704        workspace.update_in(cx, |workspace, window, cx| {
10705            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10706        });
10707        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10708        project.update(cx, |project, cx| {
10709            assert_eq!(
10710                project.active_entry(),
10711                project
10712                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10713                    .map(|e| e.id)
10714            );
10715        });
10716
10717        // Close the active item
10718        pane.update_in(cx, |pane, window, cx| {
10719            pane.close_active_item(&Default::default(), window, cx)
10720        })
10721        .await
10722        .unwrap();
10723        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10724        project.update(cx, |project, cx| {
10725            assert_eq!(
10726                project.active_entry(),
10727                project
10728                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10729                    .map(|e| e.id)
10730            );
10731        });
10732
10733        // Add a project folder
10734        project
10735            .update(cx, |project, cx| {
10736                project.find_or_create_worktree("root2", true, cx)
10737            })
10738            .await
10739            .unwrap();
10740        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10741
10742        // Remove a project folder
10743        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10744        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10745    }
10746
10747    #[gpui::test]
10748    async fn test_close_window(cx: &mut TestAppContext) {
10749        init_test(cx);
10750
10751        let fs = FakeFs::new(cx.executor());
10752        fs.insert_tree("/root", json!({ "one": "" })).await;
10753
10754        let project = Project::test(fs, ["root".as_ref()], cx).await;
10755        let (workspace, cx) =
10756            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10757
10758        // When there are no dirty items, there's nothing to do.
10759        let item1 = cx.new(TestItem::new);
10760        workspace.update_in(cx, |w, window, cx| {
10761            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10762        });
10763        let task = workspace.update_in(cx, |w, window, cx| {
10764            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10765        });
10766        assert!(task.await.unwrap());
10767
10768        // When there are dirty untitled items, prompt to save each one. If the user
10769        // cancels any prompt, then abort.
10770        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10771        let item3 = cx.new(|cx| {
10772            TestItem::new(cx)
10773                .with_dirty(true)
10774                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10775        });
10776        workspace.update_in(cx, |w, window, cx| {
10777            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10778            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10779        });
10780        let task = workspace.update_in(cx, |w, window, cx| {
10781            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10782        });
10783        cx.executor().run_until_parked();
10784        cx.simulate_prompt_answer("Cancel"); // cancel save all
10785        cx.executor().run_until_parked();
10786        assert!(!cx.has_pending_prompt());
10787        assert!(!task.await.unwrap());
10788    }
10789
10790    #[gpui::test]
10791    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10792        init_test(cx);
10793
10794        let fs = FakeFs::new(cx.executor());
10795        fs.insert_tree("/root", json!({ "one": "" })).await;
10796
10797        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10798        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10799        let multi_workspace_handle =
10800            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10801        cx.run_until_parked();
10802
10803        multi_workspace_handle
10804            .update(cx, |mw, _window, cx| {
10805                mw.open_sidebar(cx);
10806            })
10807            .unwrap();
10808
10809        let workspace_a = multi_workspace_handle
10810            .read_with(cx, |mw, _| mw.workspace().clone())
10811            .unwrap();
10812
10813        let workspace_b = multi_workspace_handle
10814            .update(cx, |mw, window, cx| {
10815                mw.test_add_workspace(project_b, window, cx)
10816            })
10817            .unwrap();
10818
10819        // Activate workspace A
10820        multi_workspace_handle
10821            .update(cx, |mw, window, cx| {
10822                let workspace = mw.workspaces().next().unwrap().clone();
10823                mw.activate(workspace, window, cx);
10824            })
10825            .unwrap();
10826
10827        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10828
10829        // Workspace A has a clean item
10830        let item_a = cx.new(TestItem::new);
10831        workspace_a.update_in(cx, |w, window, cx| {
10832            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10833        });
10834
10835        // Workspace B has a dirty item
10836        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10837        workspace_b.update_in(cx, |w, window, cx| {
10838            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10839        });
10840
10841        // Verify workspace A is active
10842        multi_workspace_handle
10843            .read_with(cx, |mw, _| {
10844                assert_eq!(mw.workspace(), &workspace_a);
10845            })
10846            .unwrap();
10847
10848        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10849        multi_workspace_handle
10850            .update(cx, |mw, window, cx| {
10851                mw.close_window(&CloseWindow, window, cx);
10852            })
10853            .unwrap();
10854        cx.run_until_parked();
10855
10856        // Workspace B should now be active since it has dirty items that need attention
10857        multi_workspace_handle
10858            .read_with(cx, |mw, _| {
10859                assert_eq!(
10860                    mw.workspace(),
10861                    &workspace_b,
10862                    "workspace B should be activated when it prompts"
10863                );
10864            })
10865            .unwrap();
10866
10867        // User cancels the save prompt from workspace B
10868        cx.simulate_prompt_answer("Cancel");
10869        cx.run_until_parked();
10870
10871        // Window should still exist because workspace B's close was cancelled
10872        assert!(
10873            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10874            "window should still exist after cancelling one workspace's close"
10875        );
10876    }
10877
10878    #[gpui::test]
10879    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
10880        init_test(cx);
10881
10882        // Register TestItem as a serializable item
10883        cx.update(|cx| {
10884            register_serializable_item::<TestItem>(cx);
10885        });
10886
10887        let fs = FakeFs::new(cx.executor());
10888        fs.insert_tree("/root", json!({ "one": "" })).await;
10889
10890        let project = Project::test(fs, ["root".as_ref()], cx).await;
10891        let (workspace, cx) =
10892            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10893
10894        // When there are dirty untitled items, but they can serialize, then there is no prompt.
10895        let item1 = cx.new(|cx| {
10896            TestItem::new(cx)
10897                .with_dirty(true)
10898                .with_serialize(|| Some(Task::ready(Ok(()))))
10899        });
10900        let item2 = cx.new(|cx| {
10901            TestItem::new(cx)
10902                .with_dirty(true)
10903                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10904                .with_serialize(|| Some(Task::ready(Ok(()))))
10905        });
10906        workspace.update_in(cx, |w, window, cx| {
10907            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10908            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10909        });
10910        let task = workspace.update_in(cx, |w, window, cx| {
10911            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10912        });
10913        assert!(task.await.unwrap());
10914    }
10915
10916    #[gpui::test]
10917    async fn test_close_pane_items(cx: &mut TestAppContext) {
10918        init_test(cx);
10919
10920        let fs = FakeFs::new(cx.executor());
10921
10922        let project = Project::test(fs, None, cx).await;
10923        let (workspace, cx) =
10924            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10925
10926        let item1 = cx.new(|cx| {
10927            TestItem::new(cx)
10928                .with_dirty(true)
10929                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
10930        });
10931        let item2 = cx.new(|cx| {
10932            TestItem::new(cx)
10933                .with_dirty(true)
10934                .with_conflict(true)
10935                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10936        });
10937        let item3 = cx.new(|cx| {
10938            TestItem::new(cx)
10939                .with_dirty(true)
10940                .with_conflict(true)
10941                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10942        });
10943        let item4 = cx.new(|cx| {
10944            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10945                let project_item = TestProjectItem::new_untitled(cx);
10946                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10947                project_item
10948            }])
10949        });
10950        let pane = workspace.update_in(cx, |workspace, window, cx| {
10951            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10952            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10953            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10954            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10955            workspace.active_pane().clone()
10956        });
10957
10958        let close_items = pane.update_in(cx, |pane, window, cx| {
10959            pane.activate_item(1, true, true, window, cx);
10960            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10961            let item1_id = item1.item_id();
10962            let item3_id = item3.item_id();
10963            let item4_id = item4.item_id();
10964            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
10965                [item1_id, item3_id, item4_id].contains(&id)
10966            })
10967        });
10968        cx.executor().run_until_parked();
10969
10970        assert!(cx.has_pending_prompt());
10971        cx.simulate_prompt_answer("Save all");
10972
10973        cx.executor().run_until_parked();
10974
10975        // Item 1 is saved. There's a prompt to save item 3.
10976        pane.update(cx, |pane, cx| {
10977            assert_eq!(item1.read(cx).save_count, 1);
10978            assert_eq!(item1.read(cx).save_as_count, 0);
10979            assert_eq!(item1.read(cx).reload_count, 0);
10980            assert_eq!(pane.items_len(), 3);
10981            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10982        });
10983        assert!(cx.has_pending_prompt());
10984
10985        // Cancel saving item 3.
10986        cx.simulate_prompt_answer("Discard");
10987        cx.executor().run_until_parked();
10988
10989        // Item 3 is reloaded. There's a prompt to save item 4.
10990        pane.update(cx, |pane, cx| {
10991            assert_eq!(item3.read(cx).save_count, 0);
10992            assert_eq!(item3.read(cx).save_as_count, 0);
10993            assert_eq!(item3.read(cx).reload_count, 1);
10994            assert_eq!(pane.items_len(), 2);
10995            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10996        });
10997
10998        // There's a prompt for a path for item 4.
10999        cx.simulate_new_path_selection(|_| Some(Default::default()));
11000        close_items.await.unwrap();
11001
11002        // The requested items are closed.
11003        pane.update(cx, |pane, cx| {
11004            assert_eq!(item4.read(cx).save_count, 0);
11005            assert_eq!(item4.read(cx).save_as_count, 1);
11006            assert_eq!(item4.read(cx).reload_count, 0);
11007            assert_eq!(pane.items_len(), 1);
11008            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
11009        });
11010    }
11011
11012    #[gpui::test]
11013    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
11014        init_test(cx);
11015
11016        let fs = FakeFs::new(cx.executor());
11017        let project = Project::test(fs, [], cx).await;
11018        let (workspace, cx) =
11019            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11020
11021        // Create several workspace items with single project entries, and two
11022        // workspace items with multiple project entries.
11023        let single_entry_items = (0..=4)
11024            .map(|project_entry_id| {
11025                cx.new(|cx| {
11026                    TestItem::new(cx)
11027                        .with_dirty(true)
11028                        .with_project_items(&[dirty_project_item(
11029                            project_entry_id,
11030                            &format!("{project_entry_id}.txt"),
11031                            cx,
11032                        )])
11033                })
11034            })
11035            .collect::<Vec<_>>();
11036        let item_2_3 = cx.new(|cx| {
11037            TestItem::new(cx)
11038                .with_dirty(true)
11039                .with_buffer_kind(ItemBufferKind::Multibuffer)
11040                .with_project_items(&[
11041                    single_entry_items[2].read(cx).project_items[0].clone(),
11042                    single_entry_items[3].read(cx).project_items[0].clone(),
11043                ])
11044        });
11045        let item_3_4 = cx.new(|cx| {
11046            TestItem::new(cx)
11047                .with_dirty(true)
11048                .with_buffer_kind(ItemBufferKind::Multibuffer)
11049                .with_project_items(&[
11050                    single_entry_items[3].read(cx).project_items[0].clone(),
11051                    single_entry_items[4].read(cx).project_items[0].clone(),
11052                ])
11053        });
11054
11055        // Create two panes that contain the following project entries:
11056        //   left pane:
11057        //     multi-entry items:   (2, 3)
11058        //     single-entry items:  0, 2, 3, 4
11059        //   right pane:
11060        //     single-entry items:  4, 1
11061        //     multi-entry items:   (3, 4)
11062        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
11063            let left_pane = workspace.active_pane().clone();
11064            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
11065            workspace.add_item_to_active_pane(
11066                single_entry_items[0].boxed_clone(),
11067                None,
11068                true,
11069                window,
11070                cx,
11071            );
11072            workspace.add_item_to_active_pane(
11073                single_entry_items[2].boxed_clone(),
11074                None,
11075                true,
11076                window,
11077                cx,
11078            );
11079            workspace.add_item_to_active_pane(
11080                single_entry_items[3].boxed_clone(),
11081                None,
11082                true,
11083                window,
11084                cx,
11085            );
11086            workspace.add_item_to_active_pane(
11087                single_entry_items[4].boxed_clone(),
11088                None,
11089                true,
11090                window,
11091                cx,
11092            );
11093
11094            let right_pane =
11095                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
11096
11097            let boxed_clone = single_entry_items[1].boxed_clone();
11098            let right_pane = window.spawn(cx, async move |cx| {
11099                right_pane.await.inspect(|right_pane| {
11100                    right_pane
11101                        .update_in(cx, |pane, window, cx| {
11102                            pane.add_item(boxed_clone, true, true, None, window, cx);
11103                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
11104                        })
11105                        .unwrap();
11106                })
11107            });
11108
11109            (left_pane, right_pane)
11110        });
11111        let right_pane = right_pane.await.unwrap();
11112        cx.focus(&right_pane);
11113
11114        let close = right_pane.update_in(cx, |pane, window, cx| {
11115            pane.close_all_items(&CloseAllItems::default(), window, cx)
11116                .unwrap()
11117        });
11118        cx.executor().run_until_parked();
11119
11120        let msg = cx.pending_prompt().unwrap().0;
11121        assert!(msg.contains("1.txt"));
11122        assert!(!msg.contains("2.txt"));
11123        assert!(!msg.contains("3.txt"));
11124        assert!(!msg.contains("4.txt"));
11125
11126        // With best-effort close, cancelling item 1 keeps it open but items 4
11127        // and (3,4) still close since their entries exist in left pane.
11128        cx.simulate_prompt_answer("Cancel");
11129        close.await;
11130
11131        right_pane.read_with(cx, |pane, _| {
11132            assert_eq!(pane.items_len(), 1);
11133        });
11134
11135        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
11136        left_pane
11137            .update_in(cx, |left_pane, window, cx| {
11138                left_pane.close_item_by_id(
11139                    single_entry_items[3].entity_id(),
11140                    SaveIntent::Skip,
11141                    window,
11142                    cx,
11143                )
11144            })
11145            .await
11146            .unwrap();
11147
11148        let close = left_pane.update_in(cx, |pane, window, cx| {
11149            pane.close_all_items(&CloseAllItems::default(), window, cx)
11150                .unwrap()
11151        });
11152        cx.executor().run_until_parked();
11153
11154        let details = cx.pending_prompt().unwrap().1;
11155        assert!(details.contains("0.txt"));
11156        assert!(details.contains("3.txt"));
11157        assert!(details.contains("4.txt"));
11158        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
11159        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
11160        // assert!(!details.contains("2.txt"));
11161
11162        cx.simulate_prompt_answer("Save all");
11163        cx.executor().run_until_parked();
11164        close.await;
11165
11166        left_pane.read_with(cx, |pane, _| {
11167            assert_eq!(pane.items_len(), 0);
11168        });
11169    }
11170
11171    #[gpui::test]
11172    async fn test_autosave(cx: &mut gpui::TestAppContext) {
11173        init_test(cx);
11174
11175        let fs = FakeFs::new(cx.executor());
11176        let project = Project::test(fs, [], cx).await;
11177        let (workspace, cx) =
11178            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11179        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11180
11181        let item = cx.new(|cx| {
11182            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11183        });
11184        let item_id = item.entity_id();
11185        workspace.update_in(cx, |workspace, window, cx| {
11186            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11187        });
11188
11189        // Autosave on window change.
11190        item.update(cx, |item, cx| {
11191            SettingsStore::update_global(cx, |settings, cx| {
11192                settings.update_user_settings(cx, |settings| {
11193                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
11194                })
11195            });
11196            item.is_dirty = true;
11197        });
11198
11199        // Deactivating the window saves the file.
11200        cx.deactivate_window();
11201        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11202
11203        // Re-activating the window doesn't save the file.
11204        cx.update(|window, _| window.activate_window());
11205        cx.executor().run_until_parked();
11206        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11207
11208        // Autosave on focus change.
11209        item.update_in(cx, |item, window, cx| {
11210            cx.focus_self(window);
11211            SettingsStore::update_global(cx, |settings, cx| {
11212                settings.update_user_settings(cx, |settings| {
11213                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11214                })
11215            });
11216            item.is_dirty = true;
11217        });
11218        // Blurring the item saves the file.
11219        item.update_in(cx, |_, window, _| window.blur());
11220        cx.executor().run_until_parked();
11221        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11222
11223        // Deactivating the window still saves the file.
11224        item.update_in(cx, |item, window, cx| {
11225            cx.focus_self(window);
11226            item.is_dirty = true;
11227        });
11228        cx.deactivate_window();
11229        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11230
11231        // Autosave after delay.
11232        item.update(cx, |item, cx| {
11233            SettingsStore::update_global(cx, |settings, cx| {
11234                settings.update_user_settings(cx, |settings| {
11235                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11236                        milliseconds: 500.into(),
11237                    });
11238                })
11239            });
11240            item.is_dirty = true;
11241            cx.emit(ItemEvent::Edit);
11242        });
11243
11244        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11245        cx.executor().advance_clock(Duration::from_millis(250));
11246        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11247
11248        // After delay expires, the file is saved.
11249        cx.executor().advance_clock(Duration::from_millis(250));
11250        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11251
11252        // Autosave after delay, should save earlier than delay if tab is closed
11253        item.update(cx, |item, cx| {
11254            item.is_dirty = true;
11255            cx.emit(ItemEvent::Edit);
11256        });
11257        cx.executor().advance_clock(Duration::from_millis(250));
11258        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11259
11260        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11261        pane.update_in(cx, |pane, window, cx| {
11262            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11263        })
11264        .await
11265        .unwrap();
11266        assert!(!cx.has_pending_prompt());
11267        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11268
11269        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11270        workspace.update_in(cx, |workspace, window, cx| {
11271            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11272        });
11273        item.update_in(cx, |item, _window, cx| {
11274            item.is_dirty = true;
11275            for project_item in &mut item.project_items {
11276                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11277            }
11278        });
11279        cx.run_until_parked();
11280        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11281
11282        // Autosave on focus change, ensuring closing the tab counts as such.
11283        item.update(cx, |item, cx| {
11284            SettingsStore::update_global(cx, |settings, cx| {
11285                settings.update_user_settings(cx, |settings| {
11286                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11287                })
11288            });
11289            item.is_dirty = true;
11290            for project_item in &mut item.project_items {
11291                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11292            }
11293        });
11294
11295        pane.update_in(cx, |pane, window, cx| {
11296            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11297        })
11298        .await
11299        .unwrap();
11300        assert!(!cx.has_pending_prompt());
11301        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11302
11303        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11304        workspace.update_in(cx, |workspace, window, cx| {
11305            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11306        });
11307        item.update_in(cx, |item, window, cx| {
11308            item.project_items[0].update(cx, |item, _| {
11309                item.entry_id = None;
11310            });
11311            item.is_dirty = true;
11312            window.blur();
11313        });
11314        cx.run_until_parked();
11315        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11316
11317        // Ensure autosave is prevented for deleted files also when closing the buffer.
11318        let _close_items = pane.update_in(cx, |pane, window, cx| {
11319            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11320        });
11321        cx.run_until_parked();
11322        assert!(cx.has_pending_prompt());
11323        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11324    }
11325
11326    #[gpui::test]
11327    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11328        init_test(cx);
11329
11330        let fs = FakeFs::new(cx.executor());
11331        let project = Project::test(fs, [], cx).await;
11332        let (workspace, cx) =
11333            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11334
11335        // Create a multibuffer-like item with two child focus handles,
11336        // simulating individual buffer editors within a multibuffer.
11337        let item = cx.new(|cx| {
11338            TestItem::new(cx)
11339                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11340                .with_child_focus_handles(2, cx)
11341        });
11342        workspace.update_in(cx, |workspace, window, cx| {
11343            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11344        });
11345
11346        // Set autosave to OnFocusChange and focus the first child handle,
11347        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11348        item.update_in(cx, |item, window, cx| {
11349            SettingsStore::update_global(cx, |settings, cx| {
11350                settings.update_user_settings(cx, |settings| {
11351                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11352                })
11353            });
11354            item.is_dirty = true;
11355            window.focus(&item.child_focus_handles[0], cx);
11356        });
11357        cx.executor().run_until_parked();
11358        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11359
11360        // Moving focus from one child to another within the same item should
11361        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11362        item.update_in(cx, |item, window, cx| {
11363            window.focus(&item.child_focus_handles[1], cx);
11364        });
11365        cx.executor().run_until_parked();
11366        item.read_with(cx, |item, _| {
11367            assert_eq!(
11368                item.save_count, 0,
11369                "Switching focus between children within the same item should not autosave"
11370            );
11371        });
11372
11373        // Blurring the item saves the file. This is the core regression scenario:
11374        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11375        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11376        // the leaf is always a child focus handle, so `on_blur` never detected
11377        // focus leaving the item.
11378        item.update_in(cx, |_, window, _| window.blur());
11379        cx.executor().run_until_parked();
11380        item.read_with(cx, |item, _| {
11381            assert_eq!(
11382                item.save_count, 1,
11383                "Blurring should trigger autosave when focus was on a child of the item"
11384            );
11385        });
11386
11387        // Deactivating the window should also trigger autosave when a child of
11388        // the multibuffer item currently owns focus.
11389        item.update_in(cx, |item, window, cx| {
11390            item.is_dirty = true;
11391            window.focus(&item.child_focus_handles[0], cx);
11392        });
11393        cx.executor().run_until_parked();
11394        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11395
11396        cx.deactivate_window();
11397        item.read_with(cx, |item, _| {
11398            assert_eq!(
11399                item.save_count, 2,
11400                "Deactivating window should trigger autosave when focus was on a child"
11401            );
11402        });
11403    }
11404
11405    #[gpui::test]
11406    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11407        init_test(cx);
11408
11409        let fs = FakeFs::new(cx.executor());
11410
11411        let project = Project::test(fs, [], cx).await;
11412        let (workspace, cx) =
11413            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11414
11415        let item = cx.new(|cx| {
11416            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11417        });
11418        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11419        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11420        let toolbar_notify_count = Rc::new(RefCell::new(0));
11421
11422        workspace.update_in(cx, |workspace, window, cx| {
11423            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11424            let toolbar_notification_count = toolbar_notify_count.clone();
11425            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11426                *toolbar_notification_count.borrow_mut() += 1
11427            })
11428            .detach();
11429        });
11430
11431        pane.read_with(cx, |pane, _| {
11432            assert!(!pane.can_navigate_backward());
11433            assert!(!pane.can_navigate_forward());
11434        });
11435
11436        item.update_in(cx, |item, _, cx| {
11437            item.set_state("one".to_string(), cx);
11438        });
11439
11440        // Toolbar must be notified to re-render the navigation buttons
11441        assert_eq!(*toolbar_notify_count.borrow(), 1);
11442
11443        pane.read_with(cx, |pane, _| {
11444            assert!(pane.can_navigate_backward());
11445            assert!(!pane.can_navigate_forward());
11446        });
11447
11448        workspace
11449            .update_in(cx, |workspace, window, cx| {
11450                workspace.go_back(pane.downgrade(), window, cx)
11451            })
11452            .await
11453            .unwrap();
11454
11455        assert_eq!(*toolbar_notify_count.borrow(), 2);
11456        pane.read_with(cx, |pane, _| {
11457            assert!(!pane.can_navigate_backward());
11458            assert!(pane.can_navigate_forward());
11459        });
11460    }
11461
11462    /// Tests that the navigation history deduplicates entries for the same item.
11463    ///
11464    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11465    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11466    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11467    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11468    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11469    ///
11470    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11471    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11472    #[gpui::test]
11473    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11474        init_test(cx);
11475
11476        let fs = FakeFs::new(cx.executor());
11477        let project = Project::test(fs, [], cx).await;
11478        let (workspace, cx) =
11479            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11480
11481        let item_a = cx.new(|cx| {
11482            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11483        });
11484        let item_b = cx.new(|cx| {
11485            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11486        });
11487        let item_c = cx.new(|cx| {
11488            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11489        });
11490
11491        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11492
11493        workspace.update_in(cx, |workspace, window, cx| {
11494            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11495            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11496            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11497        });
11498
11499        workspace.update_in(cx, |workspace, window, cx| {
11500            workspace.activate_item(&item_a, false, false, window, cx);
11501        });
11502        cx.run_until_parked();
11503
11504        workspace.update_in(cx, |workspace, window, cx| {
11505            workspace.activate_item(&item_b, false, false, window, cx);
11506        });
11507        cx.run_until_parked();
11508
11509        workspace.update_in(cx, |workspace, window, cx| {
11510            workspace.activate_item(&item_a, false, false, window, cx);
11511        });
11512        cx.run_until_parked();
11513
11514        workspace.update_in(cx, |workspace, window, cx| {
11515            workspace.activate_item(&item_b, false, false, window, cx);
11516        });
11517        cx.run_until_parked();
11518
11519        workspace.update_in(cx, |workspace, window, cx| {
11520            workspace.activate_item(&item_a, false, false, window, cx);
11521        });
11522        cx.run_until_parked();
11523
11524        workspace.update_in(cx, |workspace, window, cx| {
11525            workspace.activate_item(&item_b, false, false, window, cx);
11526        });
11527        cx.run_until_parked();
11528
11529        workspace.update_in(cx, |workspace, window, cx| {
11530            workspace.activate_item(&item_c, false, false, window, cx);
11531        });
11532        cx.run_until_parked();
11533
11534        let backward_count = pane.read_with(cx, |pane, cx| {
11535            let mut count = 0;
11536            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11537                count += 1;
11538            });
11539            count
11540        });
11541        assert!(
11542            backward_count <= 4,
11543            "Should have at most 4 entries, got {}",
11544            backward_count
11545        );
11546
11547        workspace
11548            .update_in(cx, |workspace, window, cx| {
11549                workspace.go_back(pane.downgrade(), window, cx)
11550            })
11551            .await
11552            .unwrap();
11553
11554        let active_item = workspace.read_with(cx, |workspace, cx| {
11555            workspace.active_item(cx).unwrap().item_id()
11556        });
11557        assert_eq!(
11558            active_item,
11559            item_b.entity_id(),
11560            "After first go_back, should be at item B"
11561        );
11562
11563        workspace
11564            .update_in(cx, |workspace, window, cx| {
11565                workspace.go_back(pane.downgrade(), window, cx)
11566            })
11567            .await
11568            .unwrap();
11569
11570        let active_item = workspace.read_with(cx, |workspace, cx| {
11571            workspace.active_item(cx).unwrap().item_id()
11572        });
11573        assert_eq!(
11574            active_item,
11575            item_a.entity_id(),
11576            "After second go_back, should be at item A"
11577        );
11578
11579        pane.read_with(cx, |pane, _| {
11580            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11581        });
11582    }
11583
11584    #[gpui::test]
11585    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11586        init_test(cx);
11587        let fs = FakeFs::new(cx.executor());
11588        let project = Project::test(fs, [], cx).await;
11589        let (multi_workspace, cx) =
11590            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11591        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11592
11593        workspace.update_in(cx, |workspace, window, cx| {
11594            let first_item = cx.new(|cx| {
11595                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11596            });
11597            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11598            workspace.split_pane(
11599                workspace.active_pane().clone(),
11600                SplitDirection::Right,
11601                window,
11602                cx,
11603            );
11604            workspace.split_pane(
11605                workspace.active_pane().clone(),
11606                SplitDirection::Right,
11607                window,
11608                cx,
11609            );
11610        });
11611
11612        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11613            let panes = workspace.center.panes();
11614            assert!(panes.len() >= 2);
11615            (
11616                panes.first().expect("at least one pane").entity_id(),
11617                panes.last().expect("at least one pane").entity_id(),
11618            )
11619        });
11620
11621        workspace.update_in(cx, |workspace, window, cx| {
11622            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11623        });
11624        workspace.update(cx, |workspace, _| {
11625            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11626            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11627        });
11628
11629        cx.dispatch_action(ActivateLastPane);
11630
11631        workspace.update(cx, |workspace, _| {
11632            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11633        });
11634    }
11635
11636    #[gpui::test]
11637    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11638        init_test(cx);
11639        let fs = FakeFs::new(cx.executor());
11640
11641        let project = Project::test(fs, [], cx).await;
11642        let (workspace, cx) =
11643            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11644
11645        let panel = workspace.update_in(cx, |workspace, window, cx| {
11646            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11647            workspace.add_panel(panel.clone(), window, cx);
11648
11649            workspace
11650                .right_dock()
11651                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11652
11653            panel
11654        });
11655
11656        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11657        pane.update_in(cx, |pane, window, cx| {
11658            let item = cx.new(TestItem::new);
11659            pane.add_item(Box::new(item), true, true, None, window, cx);
11660        });
11661
11662        // Transfer focus from center to panel
11663        workspace.update_in(cx, |workspace, window, cx| {
11664            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11665        });
11666
11667        workspace.update_in(cx, |workspace, window, cx| {
11668            assert!(workspace.right_dock().read(cx).is_open());
11669            assert!(!panel.is_zoomed(window, cx));
11670            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11671        });
11672
11673        // Transfer focus from panel to center
11674        workspace.update_in(cx, |workspace, window, cx| {
11675            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11676        });
11677
11678        workspace.update_in(cx, |workspace, window, cx| {
11679            assert!(workspace.right_dock().read(cx).is_open());
11680            assert!(!panel.is_zoomed(window, cx));
11681            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11682            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11683        });
11684
11685        // Close the dock
11686        workspace.update_in(cx, |workspace, window, cx| {
11687            workspace.toggle_dock(DockPosition::Right, window, cx);
11688        });
11689
11690        workspace.update_in(cx, |workspace, window, cx| {
11691            assert!(!workspace.right_dock().read(cx).is_open());
11692            assert!(!panel.is_zoomed(window, cx));
11693            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11694            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11695        });
11696
11697        // Open the dock
11698        workspace.update_in(cx, |workspace, window, cx| {
11699            workspace.toggle_dock(DockPosition::Right, window, cx);
11700        });
11701
11702        workspace.update_in(cx, |workspace, window, cx| {
11703            assert!(workspace.right_dock().read(cx).is_open());
11704            assert!(!panel.is_zoomed(window, cx));
11705            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11706        });
11707
11708        // Focus and zoom panel
11709        panel.update_in(cx, |panel, window, cx| {
11710            cx.focus_self(window);
11711            panel.set_zoomed(true, window, cx)
11712        });
11713
11714        workspace.update_in(cx, |workspace, window, cx| {
11715            assert!(workspace.right_dock().read(cx).is_open());
11716            assert!(panel.is_zoomed(window, cx));
11717            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11718        });
11719
11720        // Transfer focus to the center closes the dock
11721        workspace.update_in(cx, |workspace, window, cx| {
11722            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11723        });
11724
11725        workspace.update_in(cx, |workspace, window, cx| {
11726            assert!(!workspace.right_dock().read(cx).is_open());
11727            assert!(panel.is_zoomed(window, cx));
11728            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11729        });
11730
11731        // Transferring focus back to the panel keeps it zoomed
11732        workspace.update_in(cx, |workspace, window, cx| {
11733            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11734        });
11735
11736        workspace.update_in(cx, |workspace, window, cx| {
11737            assert!(workspace.right_dock().read(cx).is_open());
11738            assert!(panel.is_zoomed(window, cx));
11739            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11740        });
11741
11742        // Close the dock while it is zoomed
11743        workspace.update_in(cx, |workspace, window, cx| {
11744            workspace.toggle_dock(DockPosition::Right, window, cx)
11745        });
11746
11747        workspace.update_in(cx, |workspace, window, cx| {
11748            assert!(!workspace.right_dock().read(cx).is_open());
11749            assert!(panel.is_zoomed(window, cx));
11750            assert!(workspace.zoomed.is_none());
11751            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11752        });
11753
11754        // Opening the dock, when it's zoomed, retains focus
11755        workspace.update_in(cx, |workspace, window, cx| {
11756            workspace.toggle_dock(DockPosition::Right, window, cx)
11757        });
11758
11759        workspace.update_in(cx, |workspace, window, cx| {
11760            assert!(workspace.right_dock().read(cx).is_open());
11761            assert!(panel.is_zoomed(window, cx));
11762            assert!(workspace.zoomed.is_some());
11763            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11764        });
11765
11766        // Unzoom and close the panel, zoom the active pane.
11767        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11768        workspace.update_in(cx, |workspace, window, cx| {
11769            workspace.toggle_dock(DockPosition::Right, window, cx)
11770        });
11771        pane.update_in(cx, |pane, window, cx| {
11772            pane.toggle_zoom(&Default::default(), window, cx)
11773        });
11774
11775        // Opening a dock unzooms the pane.
11776        workspace.update_in(cx, |workspace, window, cx| {
11777            workspace.toggle_dock(DockPosition::Right, window, cx)
11778        });
11779        workspace.update_in(cx, |workspace, window, cx| {
11780            let pane = pane.read(cx);
11781            assert!(!pane.is_zoomed());
11782            assert!(!pane.focus_handle(cx).is_focused(window));
11783            assert!(workspace.right_dock().read(cx).is_open());
11784            assert!(workspace.zoomed.is_none());
11785        });
11786    }
11787
11788    #[gpui::test]
11789    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
11790        init_test(cx);
11791        let fs = FakeFs::new(cx.executor());
11792
11793        let project = Project::test(fs, [], cx).await;
11794        let (workspace, cx) =
11795            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11796
11797        let panel = workspace.update_in(cx, |workspace, window, cx| {
11798            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11799            workspace.add_panel(panel.clone(), window, cx);
11800            panel
11801        });
11802
11803        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11804        pane.update_in(cx, |pane, window, cx| {
11805            let item = cx.new(TestItem::new);
11806            pane.add_item(Box::new(item), true, true, None, window, cx);
11807        });
11808
11809        // Enable close_panel_on_toggle
11810        cx.update_global(|store: &mut SettingsStore, cx| {
11811            store.update_user_settings(cx, |settings| {
11812                settings.workspace.close_panel_on_toggle = Some(true);
11813            });
11814        });
11815
11816        // Panel starts closed. Toggling should open and focus it.
11817        workspace.update_in(cx, |workspace, window, cx| {
11818            assert!(!workspace.right_dock().read(cx).is_open());
11819            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11820        });
11821
11822        workspace.update_in(cx, |workspace, window, cx| {
11823            assert!(
11824                workspace.right_dock().read(cx).is_open(),
11825                "Dock should be open after toggling from center"
11826            );
11827            assert!(
11828                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11829                "Panel should be focused after toggling from center"
11830            );
11831        });
11832
11833        // Panel is open and focused. Toggling should close the panel and
11834        // return focus to the center.
11835        workspace.update_in(cx, |workspace, window, cx| {
11836            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11837        });
11838
11839        workspace.update_in(cx, |workspace, window, cx| {
11840            assert!(
11841                !workspace.right_dock().read(cx).is_open(),
11842                "Dock should be closed after toggling from focused panel"
11843            );
11844            assert!(
11845                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11846                "Panel should not be focused after toggling from focused panel"
11847            );
11848        });
11849
11850        // Open the dock and focus something else so the panel is open but not
11851        // focused. Toggling should focus the panel (not close it).
11852        workspace.update_in(cx, |workspace, window, cx| {
11853            workspace
11854                .right_dock()
11855                .update(cx, |dock, cx| dock.set_open(true, window, cx));
11856            window.focus(&pane.read(cx).focus_handle(cx), cx);
11857        });
11858
11859        workspace.update_in(cx, |workspace, window, cx| {
11860            assert!(workspace.right_dock().read(cx).is_open());
11861            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11862            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11863        });
11864
11865        workspace.update_in(cx, |workspace, window, cx| {
11866            assert!(
11867                workspace.right_dock().read(cx).is_open(),
11868                "Dock should remain open when toggling focuses an open-but-unfocused panel"
11869            );
11870            assert!(
11871                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11872                "Panel should be focused after toggling an open-but-unfocused panel"
11873            );
11874        });
11875
11876        // Now disable the setting and verify the original behavior: toggling
11877        // from a focused panel moves focus to center but leaves the dock open.
11878        cx.update_global(|store: &mut SettingsStore, cx| {
11879            store.update_user_settings(cx, |settings| {
11880                settings.workspace.close_panel_on_toggle = Some(false);
11881            });
11882        });
11883
11884        workspace.update_in(cx, |workspace, window, cx| {
11885            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11886        });
11887
11888        workspace.update_in(cx, |workspace, window, cx| {
11889            assert!(
11890                workspace.right_dock().read(cx).is_open(),
11891                "Dock should remain open when setting is disabled"
11892            );
11893            assert!(
11894                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
11895                "Panel should not be focused after toggling with setting disabled"
11896            );
11897        });
11898    }
11899
11900    #[gpui::test]
11901    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
11902        init_test(cx);
11903        let fs = FakeFs::new(cx.executor());
11904
11905        let project = Project::test(fs, [], cx).await;
11906        let (workspace, cx) =
11907            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11908
11909        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
11910            workspace.active_pane().clone()
11911        });
11912
11913        // Add an item to the pane so it can be zoomed
11914        workspace.update_in(cx, |workspace, window, cx| {
11915            let item = cx.new(TestItem::new);
11916            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
11917        });
11918
11919        // Initially not zoomed
11920        workspace.update_in(cx, |workspace, _window, cx| {
11921            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
11922            assert!(
11923                workspace.zoomed.is_none(),
11924                "Workspace should track no zoomed pane"
11925            );
11926            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
11927        });
11928
11929        // Zoom In
11930        pane.update_in(cx, |pane, window, cx| {
11931            pane.zoom_in(&crate::ZoomIn, window, cx);
11932        });
11933
11934        workspace.update_in(cx, |workspace, window, cx| {
11935            assert!(
11936                pane.read(cx).is_zoomed(),
11937                "Pane should be zoomed after ZoomIn"
11938            );
11939            assert!(
11940                workspace.zoomed.is_some(),
11941                "Workspace should track the zoomed pane"
11942            );
11943            assert!(
11944                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11945                "ZoomIn should focus the pane"
11946            );
11947        });
11948
11949        // Zoom In again is a no-op
11950        pane.update_in(cx, |pane, window, cx| {
11951            pane.zoom_in(&crate::ZoomIn, window, cx);
11952        });
11953
11954        workspace.update_in(cx, |workspace, window, cx| {
11955            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
11956            assert!(
11957                workspace.zoomed.is_some(),
11958                "Workspace still tracks zoomed pane"
11959            );
11960            assert!(
11961                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
11962                "Pane remains focused after repeated ZoomIn"
11963            );
11964        });
11965
11966        // Zoom Out
11967        pane.update_in(cx, |pane, window, cx| {
11968            pane.zoom_out(&crate::ZoomOut, window, cx);
11969        });
11970
11971        workspace.update_in(cx, |workspace, _window, cx| {
11972            assert!(
11973                !pane.read(cx).is_zoomed(),
11974                "Pane should unzoom after ZoomOut"
11975            );
11976            assert!(
11977                workspace.zoomed.is_none(),
11978                "Workspace clears zoom tracking after ZoomOut"
11979            );
11980        });
11981
11982        // Zoom Out again is a no-op
11983        pane.update_in(cx, |pane, window, cx| {
11984            pane.zoom_out(&crate::ZoomOut, window, cx);
11985        });
11986
11987        workspace.update_in(cx, |workspace, _window, cx| {
11988            assert!(
11989                !pane.read(cx).is_zoomed(),
11990                "Second ZoomOut keeps pane unzoomed"
11991            );
11992            assert!(
11993                workspace.zoomed.is_none(),
11994                "Workspace remains without zoomed pane"
11995            );
11996        });
11997    }
11998
11999    #[gpui::test]
12000    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
12001        init_test(cx);
12002        let fs = FakeFs::new(cx.executor());
12003
12004        let project = Project::test(fs, [], cx).await;
12005        let (workspace, cx) =
12006            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12007        workspace.update_in(cx, |workspace, window, cx| {
12008            // Open two docks
12009            let left_dock = workspace.dock_at_position(DockPosition::Left);
12010            let right_dock = workspace.dock_at_position(DockPosition::Right);
12011
12012            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12013            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12014
12015            assert!(left_dock.read(cx).is_open());
12016            assert!(right_dock.read(cx).is_open());
12017        });
12018
12019        workspace.update_in(cx, |workspace, window, cx| {
12020            // Toggle all docks - should close both
12021            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12022
12023            let left_dock = workspace.dock_at_position(DockPosition::Left);
12024            let right_dock = workspace.dock_at_position(DockPosition::Right);
12025            assert!(!left_dock.read(cx).is_open());
12026            assert!(!right_dock.read(cx).is_open());
12027        });
12028
12029        workspace.update_in(cx, |workspace, window, cx| {
12030            // Toggle again - should reopen both
12031            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12032
12033            let left_dock = workspace.dock_at_position(DockPosition::Left);
12034            let right_dock = workspace.dock_at_position(DockPosition::Right);
12035            assert!(left_dock.read(cx).is_open());
12036            assert!(right_dock.read(cx).is_open());
12037        });
12038    }
12039
12040    #[gpui::test]
12041    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
12042        init_test(cx);
12043        let fs = FakeFs::new(cx.executor());
12044
12045        let project = Project::test(fs, [], cx).await;
12046        let (workspace, cx) =
12047            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12048        workspace.update_in(cx, |workspace, window, cx| {
12049            // Open two docks
12050            let left_dock = workspace.dock_at_position(DockPosition::Left);
12051            let right_dock = workspace.dock_at_position(DockPosition::Right);
12052
12053            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12054            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12055
12056            assert!(left_dock.read(cx).is_open());
12057            assert!(right_dock.read(cx).is_open());
12058        });
12059
12060        workspace.update_in(cx, |workspace, window, cx| {
12061            // Close them manually
12062            workspace.toggle_dock(DockPosition::Left, window, cx);
12063            workspace.toggle_dock(DockPosition::Right, window, cx);
12064
12065            let left_dock = workspace.dock_at_position(DockPosition::Left);
12066            let right_dock = workspace.dock_at_position(DockPosition::Right);
12067            assert!(!left_dock.read(cx).is_open());
12068            assert!(!right_dock.read(cx).is_open());
12069        });
12070
12071        workspace.update_in(cx, |workspace, window, cx| {
12072            // Toggle all docks - only last closed (right dock) should reopen
12073            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12074
12075            let left_dock = workspace.dock_at_position(DockPosition::Left);
12076            let right_dock = workspace.dock_at_position(DockPosition::Right);
12077            assert!(!left_dock.read(cx).is_open());
12078            assert!(right_dock.read(cx).is_open());
12079        });
12080    }
12081
12082    #[gpui::test]
12083    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
12084        init_test(cx);
12085        let fs = FakeFs::new(cx.executor());
12086        let project = Project::test(fs, [], cx).await;
12087        let (multi_workspace, cx) =
12088            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12089        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12090
12091        // Open two docks (left and right) with one panel each
12092        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
12093            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12094            workspace.add_panel(left_panel.clone(), window, cx);
12095
12096            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12097            workspace.add_panel(right_panel.clone(), window, cx);
12098
12099            workspace.toggle_dock(DockPosition::Left, window, cx);
12100            workspace.toggle_dock(DockPosition::Right, window, cx);
12101
12102            // Verify initial state
12103            assert!(
12104                workspace.left_dock().read(cx).is_open(),
12105                "Left dock should be open"
12106            );
12107            assert_eq!(
12108                workspace
12109                    .left_dock()
12110                    .read(cx)
12111                    .visible_panel()
12112                    .unwrap()
12113                    .panel_id(),
12114                left_panel.panel_id(),
12115                "Left panel should be visible in left dock"
12116            );
12117            assert!(
12118                workspace.right_dock().read(cx).is_open(),
12119                "Right dock should be open"
12120            );
12121            assert_eq!(
12122                workspace
12123                    .right_dock()
12124                    .read(cx)
12125                    .visible_panel()
12126                    .unwrap()
12127                    .panel_id(),
12128                right_panel.panel_id(),
12129                "Right panel should be visible in right dock"
12130            );
12131            assert!(
12132                !workspace.bottom_dock().read(cx).is_open(),
12133                "Bottom dock should be closed"
12134            );
12135
12136            (left_panel, right_panel)
12137        });
12138
12139        // Focus the left panel and move it to the next position (bottom dock)
12140        workspace.update_in(cx, |workspace, window, cx| {
12141            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
12142            assert!(
12143                left_panel.read(cx).focus_handle(cx).is_focused(window),
12144                "Left panel should be focused"
12145            );
12146        });
12147
12148        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12149
12150        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
12151        workspace.update(cx, |workspace, cx| {
12152            assert!(
12153                !workspace.left_dock().read(cx).is_open(),
12154                "Left dock should be closed"
12155            );
12156            assert!(
12157                workspace.bottom_dock().read(cx).is_open(),
12158                "Bottom dock should now be open"
12159            );
12160            assert_eq!(
12161                left_panel.read(cx).position,
12162                DockPosition::Bottom,
12163                "Left panel should now be in the bottom dock"
12164            );
12165            assert_eq!(
12166                workspace
12167                    .bottom_dock()
12168                    .read(cx)
12169                    .visible_panel()
12170                    .unwrap()
12171                    .panel_id(),
12172                left_panel.panel_id(),
12173                "Left panel should be the visible panel in the bottom dock"
12174            );
12175        });
12176
12177        // Toggle all docks off
12178        workspace.update_in(cx, |workspace, window, cx| {
12179            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12180            assert!(
12181                !workspace.left_dock().read(cx).is_open(),
12182                "Left dock should be closed"
12183            );
12184            assert!(
12185                !workspace.right_dock().read(cx).is_open(),
12186                "Right dock should be closed"
12187            );
12188            assert!(
12189                !workspace.bottom_dock().read(cx).is_open(),
12190                "Bottom dock should be closed"
12191            );
12192        });
12193
12194        // Toggle all docks back on and verify positions are restored
12195        workspace.update_in(cx, |workspace, window, cx| {
12196            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12197            assert!(
12198                !workspace.left_dock().read(cx).is_open(),
12199                "Left dock should remain closed"
12200            );
12201            assert!(
12202                workspace.right_dock().read(cx).is_open(),
12203                "Right dock should remain open"
12204            );
12205            assert!(
12206                workspace.bottom_dock().read(cx).is_open(),
12207                "Bottom dock should remain open"
12208            );
12209            assert_eq!(
12210                left_panel.read(cx).position,
12211                DockPosition::Bottom,
12212                "Left panel should remain in the bottom dock"
12213            );
12214            assert_eq!(
12215                right_panel.read(cx).position,
12216                DockPosition::Right,
12217                "Right panel should remain in the right dock"
12218            );
12219            assert_eq!(
12220                workspace
12221                    .bottom_dock()
12222                    .read(cx)
12223                    .visible_panel()
12224                    .unwrap()
12225                    .panel_id(),
12226                left_panel.panel_id(),
12227                "Left panel should be the visible panel in the right dock"
12228            );
12229        });
12230    }
12231
12232    #[gpui::test]
12233    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12234        init_test(cx);
12235
12236        let fs = FakeFs::new(cx.executor());
12237
12238        let project = Project::test(fs, None, cx).await;
12239        let (workspace, cx) =
12240            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12241
12242        // Let's arrange the panes like this:
12243        //
12244        // +-----------------------+
12245        // |         top           |
12246        // +------+--------+-------+
12247        // | left | center | right |
12248        // +------+--------+-------+
12249        // |        bottom         |
12250        // +-----------------------+
12251
12252        let top_item = cx.new(|cx| {
12253            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12254        });
12255        let bottom_item = cx.new(|cx| {
12256            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12257        });
12258        let left_item = cx.new(|cx| {
12259            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12260        });
12261        let right_item = cx.new(|cx| {
12262            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12263        });
12264        let center_item = cx.new(|cx| {
12265            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12266        });
12267
12268        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12269            let top_pane_id = workspace.active_pane().entity_id();
12270            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12271            workspace.split_pane(
12272                workspace.active_pane().clone(),
12273                SplitDirection::Down,
12274                window,
12275                cx,
12276            );
12277            top_pane_id
12278        });
12279        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12280            let bottom_pane_id = workspace.active_pane().entity_id();
12281            workspace.add_item_to_active_pane(
12282                Box::new(bottom_item.clone()),
12283                None,
12284                false,
12285                window,
12286                cx,
12287            );
12288            workspace.split_pane(
12289                workspace.active_pane().clone(),
12290                SplitDirection::Up,
12291                window,
12292                cx,
12293            );
12294            bottom_pane_id
12295        });
12296        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12297            let left_pane_id = workspace.active_pane().entity_id();
12298            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12299            workspace.split_pane(
12300                workspace.active_pane().clone(),
12301                SplitDirection::Right,
12302                window,
12303                cx,
12304            );
12305            left_pane_id
12306        });
12307        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12308            let right_pane_id = workspace.active_pane().entity_id();
12309            workspace.add_item_to_active_pane(
12310                Box::new(right_item.clone()),
12311                None,
12312                false,
12313                window,
12314                cx,
12315            );
12316            workspace.split_pane(
12317                workspace.active_pane().clone(),
12318                SplitDirection::Left,
12319                window,
12320                cx,
12321            );
12322            right_pane_id
12323        });
12324        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12325            let center_pane_id = workspace.active_pane().entity_id();
12326            workspace.add_item_to_active_pane(
12327                Box::new(center_item.clone()),
12328                None,
12329                false,
12330                window,
12331                cx,
12332            );
12333            center_pane_id
12334        });
12335        cx.executor().run_until_parked();
12336
12337        workspace.update_in(cx, |workspace, window, cx| {
12338            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12339
12340            // Join into next from center pane into right
12341            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12342        });
12343
12344        workspace.update_in(cx, |workspace, window, cx| {
12345            let active_pane = workspace.active_pane();
12346            assert_eq!(right_pane_id, active_pane.entity_id());
12347            assert_eq!(2, active_pane.read(cx).items_len());
12348            let item_ids_in_pane =
12349                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12350            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12351            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12352
12353            // Join into next from right pane into bottom
12354            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12355        });
12356
12357        workspace.update_in(cx, |workspace, window, cx| {
12358            let active_pane = workspace.active_pane();
12359            assert_eq!(bottom_pane_id, active_pane.entity_id());
12360            assert_eq!(3, active_pane.read(cx).items_len());
12361            let item_ids_in_pane =
12362                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12363            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12364            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12365            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12366
12367            // Join into next from bottom pane into left
12368            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12369        });
12370
12371        workspace.update_in(cx, |workspace, window, cx| {
12372            let active_pane = workspace.active_pane();
12373            assert_eq!(left_pane_id, active_pane.entity_id());
12374            assert_eq!(4, active_pane.read(cx).items_len());
12375            let item_ids_in_pane =
12376                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12377            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12378            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12379            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12380            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12381
12382            // Join into next from left pane into top
12383            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12384        });
12385
12386        workspace.update_in(cx, |workspace, window, cx| {
12387            let active_pane = workspace.active_pane();
12388            assert_eq!(top_pane_id, active_pane.entity_id());
12389            assert_eq!(5, active_pane.read(cx).items_len());
12390            let item_ids_in_pane =
12391                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12392            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12393            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12394            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12395            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12396            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12397
12398            // Single pane left: no-op
12399            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12400        });
12401
12402        workspace.update(cx, |workspace, _cx| {
12403            let active_pane = workspace.active_pane();
12404            assert_eq!(top_pane_id, active_pane.entity_id());
12405        });
12406    }
12407
12408    fn add_an_item_to_active_pane(
12409        cx: &mut VisualTestContext,
12410        workspace: &Entity<Workspace>,
12411        item_id: u64,
12412    ) -> Entity<TestItem> {
12413        let item = cx.new(|cx| {
12414            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12415                item_id,
12416                "item{item_id}.txt",
12417                cx,
12418            )])
12419        });
12420        workspace.update_in(cx, |workspace, window, cx| {
12421            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12422        });
12423        item
12424    }
12425
12426    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12427        workspace.update_in(cx, |workspace, window, cx| {
12428            workspace.split_pane(
12429                workspace.active_pane().clone(),
12430                SplitDirection::Right,
12431                window,
12432                cx,
12433            )
12434        })
12435    }
12436
12437    #[gpui::test]
12438    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12439        init_test(cx);
12440        let fs = FakeFs::new(cx.executor());
12441        let project = Project::test(fs, None, cx).await;
12442        let (workspace, cx) =
12443            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12444
12445        add_an_item_to_active_pane(cx, &workspace, 1);
12446        split_pane(cx, &workspace);
12447        add_an_item_to_active_pane(cx, &workspace, 2);
12448        split_pane(cx, &workspace); // empty pane
12449        split_pane(cx, &workspace);
12450        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12451
12452        cx.executor().run_until_parked();
12453
12454        workspace.update(cx, |workspace, cx| {
12455            let num_panes = workspace.panes().len();
12456            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12457            let active_item = workspace
12458                .active_pane()
12459                .read(cx)
12460                .active_item()
12461                .expect("item is in focus");
12462
12463            assert_eq!(num_panes, 4);
12464            assert_eq!(num_items_in_current_pane, 1);
12465            assert_eq!(active_item.item_id(), last_item.item_id());
12466        });
12467
12468        workspace.update_in(cx, |workspace, window, cx| {
12469            workspace.join_all_panes(window, cx);
12470        });
12471
12472        workspace.update(cx, |workspace, cx| {
12473            let num_panes = workspace.panes().len();
12474            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12475            let active_item = workspace
12476                .active_pane()
12477                .read(cx)
12478                .active_item()
12479                .expect("item is in focus");
12480
12481            assert_eq!(num_panes, 1);
12482            assert_eq!(num_items_in_current_pane, 3);
12483            assert_eq!(active_item.item_id(), last_item.item_id());
12484        });
12485    }
12486
12487    #[gpui::test]
12488    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12489        init_test(cx);
12490        let fs = FakeFs::new(cx.executor());
12491
12492        let project = Project::test(fs, [], cx).await;
12493        let (multi_workspace, cx) =
12494            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12495        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12496
12497        workspace.update(cx, |workspace, _cx| {
12498            workspace.bounds.size.width = px(800.);
12499        });
12500
12501        workspace.update_in(cx, |workspace, window, cx| {
12502            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12503            workspace.add_panel(panel, window, cx);
12504            workspace.toggle_dock(DockPosition::Right, window, cx);
12505        });
12506
12507        let (panel, resized_width, ratio_basis_width) =
12508            workspace.update_in(cx, |workspace, window, cx| {
12509                let item = cx.new(|cx| {
12510                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12511                });
12512                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12513
12514                let dock = workspace.right_dock().read(cx);
12515                let workspace_width = workspace.bounds.size.width;
12516                let initial_width = workspace
12517                    .dock_size(&dock, window, cx)
12518                    .expect("flexible dock should have an initial width");
12519
12520                assert_eq!(initial_width, workspace_width / 2.);
12521
12522                workspace.resize_right_dock(px(300.), window, cx);
12523
12524                let dock = workspace.right_dock().read(cx);
12525                let resized_width = workspace
12526                    .dock_size(&dock, window, cx)
12527                    .expect("flexible dock should keep its resized width");
12528
12529                assert_eq!(resized_width, px(300.));
12530
12531                let panel = workspace
12532                    .right_dock()
12533                    .read(cx)
12534                    .visible_panel()
12535                    .expect("flexible dock should have a visible panel")
12536                    .panel_id();
12537
12538                (panel, resized_width, workspace_width)
12539            });
12540
12541        workspace.update_in(cx, |workspace, window, cx| {
12542            workspace.toggle_dock(DockPosition::Right, window, cx);
12543            workspace.toggle_dock(DockPosition::Right, window, cx);
12544
12545            let dock = workspace.right_dock().read(cx);
12546            let reopened_width = workspace
12547                .dock_size(&dock, window, cx)
12548                .expect("flexible dock should restore when reopened");
12549
12550            assert_eq!(reopened_width, resized_width);
12551
12552            let right_dock = workspace.right_dock().read(cx);
12553            let flexible_panel = right_dock
12554                .visible_panel()
12555                .expect("flexible dock should still have a visible panel");
12556            assert_eq!(flexible_panel.panel_id(), panel);
12557            assert_eq!(
12558                right_dock
12559                    .stored_panel_size_state(flexible_panel.as_ref())
12560                    .and_then(|size_state| size_state.flex),
12561                Some(
12562                    resized_width.to_f64() as f32
12563                        / (workspace.bounds.size.width - resized_width).to_f64() as f32
12564                )
12565            );
12566        });
12567
12568        workspace.update_in(cx, |workspace, window, cx| {
12569            workspace.split_pane(
12570                workspace.active_pane().clone(),
12571                SplitDirection::Right,
12572                window,
12573                cx,
12574            );
12575
12576            let dock = workspace.right_dock().read(cx);
12577            let split_width = workspace
12578                .dock_size(&dock, window, cx)
12579                .expect("flexible dock should keep its user-resized proportion");
12580
12581            assert_eq!(split_width, px(300.));
12582
12583            workspace.bounds.size.width = px(1600.);
12584
12585            let dock = workspace.right_dock().read(cx);
12586            let resized_window_width = workspace
12587                .dock_size(&dock, window, cx)
12588                .expect("flexible dock should preserve proportional size on window resize");
12589
12590            assert_eq!(
12591                resized_window_width,
12592                workspace.bounds.size.width
12593                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12594            );
12595        });
12596    }
12597
12598    #[gpui::test]
12599    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12600        init_test(cx);
12601        let fs = FakeFs::new(cx.executor());
12602
12603        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12604        {
12605            let project = Project::test(fs.clone(), [], cx).await;
12606            let (multi_workspace, cx) =
12607                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12608            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12609
12610            workspace.update(cx, |workspace, _cx| {
12611                workspace.set_random_database_id();
12612                workspace.bounds.size.width = px(800.);
12613            });
12614
12615            let panel = workspace.update_in(cx, |workspace, window, cx| {
12616                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12617                workspace.add_panel(panel.clone(), window, cx);
12618                workspace.toggle_dock(DockPosition::Left, window, cx);
12619                panel
12620            });
12621
12622            workspace.update_in(cx, |workspace, window, cx| {
12623                workspace.resize_left_dock(px(350.), window, cx);
12624            });
12625
12626            cx.run_until_parked();
12627
12628            let persisted = workspace.read_with(cx, |workspace, cx| {
12629                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12630            });
12631            assert_eq!(
12632                persisted.and_then(|s| s.size),
12633                Some(px(350.)),
12634                "fixed-width panel size should be persisted to KVP"
12635            );
12636
12637            // Remove the panel and re-add a fresh instance with the same key.
12638            // The new instance should have its size state restored from KVP.
12639            workspace.update_in(cx, |workspace, window, cx| {
12640                workspace.remove_panel(&panel, window, cx);
12641            });
12642
12643            workspace.update_in(cx, |workspace, window, cx| {
12644                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12645                workspace.add_panel(new_panel, window, cx);
12646
12647                let left_dock = workspace.left_dock().read(cx);
12648                let size_state = left_dock
12649                    .panel::<TestPanel>()
12650                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12651                assert_eq!(
12652                    size_state.and_then(|s| s.size),
12653                    Some(px(350.)),
12654                    "re-added fixed-width panel should restore persisted size from KVP"
12655                );
12656            });
12657        }
12658
12659        // Flexible panel: both pixel size and ratio are persisted and restored.
12660        {
12661            let project = Project::test(fs.clone(), [], cx).await;
12662            let (multi_workspace, cx) =
12663                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12664            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12665
12666            workspace.update(cx, |workspace, _cx| {
12667                workspace.set_random_database_id();
12668                workspace.bounds.size.width = px(800.);
12669            });
12670
12671            let panel = workspace.update_in(cx, |workspace, window, cx| {
12672                let item = cx.new(|cx| {
12673                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12674                });
12675                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12676
12677                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12678                workspace.add_panel(panel.clone(), window, cx);
12679                workspace.toggle_dock(DockPosition::Right, window, cx);
12680                panel
12681            });
12682
12683            workspace.update_in(cx, |workspace, window, cx| {
12684                workspace.resize_right_dock(px(300.), window, cx);
12685            });
12686
12687            cx.run_until_parked();
12688
12689            let persisted = workspace
12690                .read_with(cx, |workspace, cx| {
12691                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12692                })
12693                .expect("flexible panel state should be persisted to KVP");
12694            assert_eq!(
12695                persisted.size, None,
12696                "flexible panel should not persist a redundant pixel size"
12697            );
12698            let original_ratio = persisted.flex.expect("panel's flex should be persisted");
12699
12700            // Remove the panel and re-add: both size and ratio should be restored.
12701            workspace.update_in(cx, |workspace, window, cx| {
12702                workspace.remove_panel(&panel, window, cx);
12703            });
12704
12705            workspace.update_in(cx, |workspace, window, cx| {
12706                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12707                workspace.add_panel(new_panel, window, cx);
12708
12709                let right_dock = workspace.right_dock().read(cx);
12710                let size_state = right_dock
12711                    .panel::<TestPanel>()
12712                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12713                    .expect("re-added flexible panel should have restored size state from KVP");
12714                assert_eq!(
12715                    size_state.size, None,
12716                    "re-added flexible panel should not have a persisted pixel size"
12717                );
12718                assert_eq!(
12719                    size_state.flex,
12720                    Some(original_ratio),
12721                    "re-added flexible panel should restore persisted flex"
12722                );
12723            });
12724        }
12725    }
12726
12727    #[gpui::test]
12728    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12729        init_test(cx);
12730        let fs = FakeFs::new(cx.executor());
12731
12732        let project = Project::test(fs, [], cx).await;
12733        let (multi_workspace, cx) =
12734            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12735        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12736
12737        workspace.update(cx, |workspace, _cx| {
12738            workspace.bounds.size.width = px(900.);
12739        });
12740
12741        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12742        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12743        // and the center pane each take half the workspace width.
12744        workspace.update_in(cx, |workspace, window, cx| {
12745            let item = cx.new(|cx| {
12746                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12747            });
12748            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12749
12750            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12751            workspace.add_panel(panel, window, cx);
12752            workspace.toggle_dock(DockPosition::Left, window, cx);
12753
12754            let left_dock = workspace.left_dock().read(cx);
12755            let left_width = workspace
12756                .dock_size(&left_dock, window, cx)
12757                .expect("left dock should have an active panel");
12758
12759            assert_eq!(
12760                left_width,
12761                workspace.bounds.size.width / 2.,
12762                "flexible left panel should split evenly with the center pane"
12763            );
12764        });
12765
12766        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12767        // change horizontal width fractions, so the flexible panel stays at the same
12768        // width as each half of the split.
12769        workspace.update_in(cx, |workspace, window, cx| {
12770            workspace.split_pane(
12771                workspace.active_pane().clone(),
12772                SplitDirection::Down,
12773                window,
12774                cx,
12775            );
12776
12777            let left_dock = workspace.left_dock().read(cx);
12778            let left_width = workspace
12779                .dock_size(&left_dock, window, cx)
12780                .expect("left dock should still have an active panel after vertical split");
12781
12782            assert_eq!(
12783                left_width,
12784                workspace.bounds.size.width / 2.,
12785                "flexible left panel width should match each vertically-split pane"
12786            );
12787        });
12788
12789        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
12790        // size reduces the available width, so the flexible left panel and the center
12791        // panes all shrink proportionally to accommodate it.
12792        workspace.update_in(cx, |workspace, window, cx| {
12793            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
12794            workspace.add_panel(panel, window, cx);
12795            workspace.toggle_dock(DockPosition::Right, window, cx);
12796
12797            let right_dock = workspace.right_dock().read(cx);
12798            let right_width = workspace
12799                .dock_size(&right_dock, window, cx)
12800                .expect("right dock should have an active panel");
12801
12802            let left_dock = workspace.left_dock().read(cx);
12803            let left_width = workspace
12804                .dock_size(&left_dock, window, cx)
12805                .expect("left dock should still have an active panel");
12806
12807            let available_width = workspace.bounds.size.width - right_width;
12808            assert_eq!(
12809                left_width,
12810                available_width / 2.,
12811                "flexible left panel should shrink proportionally as the right dock takes space"
12812            );
12813        });
12814
12815        // Step 4: Toggle the right dock's panel to flexible. Now both docks use
12816        // flex sizing and the workspace width is divided among left-flex, center
12817        // (implicit flex 1.0), and right-flex.
12818        workspace.update_in(cx, |workspace, window, cx| {
12819            let right_dock = workspace.right_dock().clone();
12820            let right_panel = right_dock
12821                .read(cx)
12822                .visible_panel()
12823                .expect("right dock should have a visible panel")
12824                .clone();
12825            workspace.toggle_dock_panel_flexible_size(
12826                &right_dock,
12827                right_panel.as_ref(),
12828                window,
12829                cx,
12830            );
12831
12832            let right_dock = right_dock.read(cx);
12833            let right_panel = right_dock
12834                .visible_panel()
12835                .expect("right dock should still have a visible panel");
12836            assert!(
12837                right_panel.has_flexible_size(window, cx),
12838                "right panel should now be flexible"
12839            );
12840
12841            let right_size_state = right_dock
12842                .stored_panel_size_state(right_panel.as_ref())
12843                .expect("right panel should have a stored size state after toggling");
12844            let right_flex = right_size_state
12845                .flex
12846                .expect("right panel should have a flex value after toggling");
12847
12848            let left_dock = workspace.left_dock().read(cx);
12849            let left_width = workspace
12850                .dock_size(&left_dock, window, cx)
12851                .expect("left dock should still have an active panel");
12852            let right_width = workspace
12853                .dock_size(&right_dock, window, cx)
12854                .expect("right dock should still have an active panel");
12855
12856            let left_flex = workspace
12857                .default_dock_flex(DockPosition::Left)
12858                .expect("left dock should have a default flex");
12859
12860            let total_flex = left_flex + 1.0 + right_flex;
12861            let expected_left = left_flex / total_flex * workspace.bounds.size.width;
12862            let expected_right = right_flex / total_flex * workspace.bounds.size.width;
12863            assert_eq!(
12864                left_width, expected_left,
12865                "flexible left panel should share workspace width via flex ratios"
12866            );
12867            assert_eq!(
12868                right_width, expected_right,
12869                "flexible right panel should share workspace width via flex ratios"
12870            );
12871        });
12872    }
12873
12874    struct TestModal(FocusHandle);
12875
12876    impl TestModal {
12877        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
12878            Self(cx.focus_handle())
12879        }
12880    }
12881
12882    impl EventEmitter<DismissEvent> for TestModal {}
12883
12884    impl Focusable for TestModal {
12885        fn focus_handle(&self, _cx: &App) -> FocusHandle {
12886            self.0.clone()
12887        }
12888    }
12889
12890    impl ModalView for TestModal {}
12891
12892    impl Render for TestModal {
12893        fn render(
12894            &mut self,
12895            _window: &mut Window,
12896            _cx: &mut Context<TestModal>,
12897        ) -> impl IntoElement {
12898            div().track_focus(&self.0)
12899        }
12900    }
12901
12902    #[gpui::test]
12903    async fn test_panels(cx: &mut gpui::TestAppContext) {
12904        init_test(cx);
12905        let fs = FakeFs::new(cx.executor());
12906
12907        let project = Project::test(fs, [], cx).await;
12908        let (multi_workspace, cx) =
12909            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12910        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12911
12912        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
12913            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12914            workspace.add_panel(panel_1.clone(), window, cx);
12915            workspace.toggle_dock(DockPosition::Left, window, cx);
12916            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12917            workspace.add_panel(panel_2.clone(), window, cx);
12918            workspace.toggle_dock(DockPosition::Right, window, cx);
12919
12920            let left_dock = workspace.left_dock();
12921            assert_eq!(
12922                left_dock.read(cx).visible_panel().unwrap().panel_id(),
12923                panel_1.panel_id()
12924            );
12925            assert_eq!(
12926                workspace.dock_size(&left_dock.read(cx), window, cx),
12927                Some(px(300.))
12928            );
12929
12930            workspace.resize_left_dock(px(1337.), window, cx);
12931            assert_eq!(
12932                workspace
12933                    .right_dock()
12934                    .read(cx)
12935                    .visible_panel()
12936                    .unwrap()
12937                    .panel_id(),
12938                panel_2.panel_id(),
12939            );
12940
12941            (panel_1, panel_2)
12942        });
12943
12944        // Move panel_1 to the right
12945        panel_1.update_in(cx, |panel_1, window, cx| {
12946            panel_1.set_position(DockPosition::Right, window, cx)
12947        });
12948
12949        workspace.update_in(cx, |workspace, window, cx| {
12950            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
12951            // Since it was the only panel on the left, the left dock should now be closed.
12952            assert!(!workspace.left_dock().read(cx).is_open());
12953            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
12954            let right_dock = workspace.right_dock();
12955            assert_eq!(
12956                right_dock.read(cx).visible_panel().unwrap().panel_id(),
12957                panel_1.panel_id()
12958            );
12959            assert_eq!(
12960                right_dock
12961                    .read(cx)
12962                    .active_panel_size()
12963                    .unwrap()
12964                    .size
12965                    .unwrap(),
12966                px(1337.)
12967            );
12968
12969            // Now we move panel_2 to the left
12970            panel_2.set_position(DockPosition::Left, window, cx);
12971        });
12972
12973        workspace.update(cx, |workspace, cx| {
12974            // Since panel_2 was not visible on the right, we don't open the left dock.
12975            assert!(!workspace.left_dock().read(cx).is_open());
12976            // And the right dock is unaffected in its displaying of panel_1
12977            assert!(workspace.right_dock().read(cx).is_open());
12978            assert_eq!(
12979                workspace
12980                    .right_dock()
12981                    .read(cx)
12982                    .visible_panel()
12983                    .unwrap()
12984                    .panel_id(),
12985                panel_1.panel_id(),
12986            );
12987        });
12988
12989        // Move panel_1 back to the left
12990        panel_1.update_in(cx, |panel_1, window, cx| {
12991            panel_1.set_position(DockPosition::Left, window, cx)
12992        });
12993
12994        workspace.update_in(cx, |workspace, window, cx| {
12995            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
12996            let left_dock = workspace.left_dock();
12997            assert!(left_dock.read(cx).is_open());
12998            assert_eq!(
12999                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13000                panel_1.panel_id()
13001            );
13002            assert_eq!(
13003                workspace.dock_size(&left_dock.read(cx), window, cx),
13004                Some(px(1337.))
13005            );
13006            // And the right dock should be closed as it no longer has any panels.
13007            assert!(!workspace.right_dock().read(cx).is_open());
13008
13009            // Now we move panel_1 to the bottom
13010            panel_1.set_position(DockPosition::Bottom, window, cx);
13011        });
13012
13013        workspace.update_in(cx, |workspace, window, cx| {
13014            // Since panel_1 was visible on the left, we close the left dock.
13015            assert!(!workspace.left_dock().read(cx).is_open());
13016            // The bottom dock is sized based on the panel's default size,
13017            // since the panel orientation changed from vertical to horizontal.
13018            let bottom_dock = workspace.bottom_dock();
13019            assert_eq!(
13020                workspace.dock_size(&bottom_dock.read(cx), window, cx),
13021                Some(px(300.))
13022            );
13023            // Close bottom dock and move panel_1 back to the left.
13024            bottom_dock.update(cx, |bottom_dock, cx| {
13025                bottom_dock.set_open(false, window, cx)
13026            });
13027            panel_1.set_position(DockPosition::Left, window, cx);
13028        });
13029
13030        // Emit activated event on panel 1
13031        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
13032
13033        // Now the left dock is open and panel_1 is active and focused.
13034        workspace.update_in(cx, |workspace, window, cx| {
13035            let left_dock = workspace.left_dock();
13036            assert!(left_dock.read(cx).is_open());
13037            assert_eq!(
13038                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13039                panel_1.panel_id(),
13040            );
13041            assert!(panel_1.focus_handle(cx).is_focused(window));
13042        });
13043
13044        // Emit closed event on panel 2, which is not active
13045        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13046
13047        // Wo don't close the left dock, because panel_2 wasn't the active panel
13048        workspace.update(cx, |workspace, cx| {
13049            let left_dock = workspace.left_dock();
13050            assert!(left_dock.read(cx).is_open());
13051            assert_eq!(
13052                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13053                panel_1.panel_id(),
13054            );
13055        });
13056
13057        // Emitting a ZoomIn event shows the panel as zoomed.
13058        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
13059        workspace.read_with(cx, |workspace, _| {
13060            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13061            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
13062        });
13063
13064        // Move panel to another dock while it is zoomed
13065        panel_1.update_in(cx, |panel, window, cx| {
13066            panel.set_position(DockPosition::Right, window, cx)
13067        });
13068        workspace.read_with(cx, |workspace, _| {
13069            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13070
13071            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13072        });
13073
13074        // This is a helper for getting a:
13075        // - valid focus on an element,
13076        // - that isn't a part of the panes and panels system of the Workspace,
13077        // - and doesn't trigger the 'on_focus_lost' API.
13078        let focus_other_view = {
13079            let workspace = workspace.clone();
13080            move |cx: &mut VisualTestContext| {
13081                workspace.update_in(cx, |workspace, window, cx| {
13082                    if workspace.active_modal::<TestModal>(cx).is_some() {
13083                        workspace.toggle_modal(window, cx, TestModal::new);
13084                        workspace.toggle_modal(window, cx, TestModal::new);
13085                    } else {
13086                        workspace.toggle_modal(window, cx, TestModal::new);
13087                    }
13088                })
13089            }
13090        };
13091
13092        // If focus is transferred to another view that's not a panel or another pane, we still show
13093        // the panel as zoomed.
13094        focus_other_view(cx);
13095        workspace.read_with(cx, |workspace, _| {
13096            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13097            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13098        });
13099
13100        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
13101        workspace.update_in(cx, |_workspace, window, cx| {
13102            cx.focus_self(window);
13103        });
13104        workspace.read_with(cx, |workspace, _| {
13105            assert_eq!(workspace.zoomed, None);
13106            assert_eq!(workspace.zoomed_position, None);
13107        });
13108
13109        // If focus is transferred again to another view that's not a panel or a pane, we won't
13110        // show the panel as zoomed because it wasn't zoomed before.
13111        focus_other_view(cx);
13112        workspace.read_with(cx, |workspace, _| {
13113            assert_eq!(workspace.zoomed, None);
13114            assert_eq!(workspace.zoomed_position, None);
13115        });
13116
13117        // When the panel is activated, it is zoomed again.
13118        cx.dispatch_action(ToggleRightDock);
13119        workspace.read_with(cx, |workspace, _| {
13120            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13121            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13122        });
13123
13124        // Emitting a ZoomOut event unzooms the panel.
13125        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
13126        workspace.read_with(cx, |workspace, _| {
13127            assert_eq!(workspace.zoomed, None);
13128            assert_eq!(workspace.zoomed_position, None);
13129        });
13130
13131        // Emit closed event on panel 1, which is active
13132        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13133
13134        // Now the left dock is closed, because panel_1 was the active panel
13135        workspace.update(cx, |workspace, cx| {
13136            let right_dock = workspace.right_dock();
13137            assert!(!right_dock.read(cx).is_open());
13138        });
13139    }
13140
13141    #[gpui::test]
13142    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
13143        init_test(cx);
13144
13145        let fs = FakeFs::new(cx.background_executor.clone());
13146        let project = Project::test(fs, [], cx).await;
13147        let (workspace, cx) =
13148            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13149        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13150
13151        let dirty_regular_buffer = cx.new(|cx| {
13152            TestItem::new(cx)
13153                .with_dirty(true)
13154                .with_label("1.txt")
13155                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13156        });
13157        let dirty_regular_buffer_2 = cx.new(|cx| {
13158            TestItem::new(cx)
13159                .with_dirty(true)
13160                .with_label("2.txt")
13161                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13162        });
13163        let dirty_multi_buffer_with_both = cx.new(|cx| {
13164            TestItem::new(cx)
13165                .with_dirty(true)
13166                .with_buffer_kind(ItemBufferKind::Multibuffer)
13167                .with_label("Fake Project Search")
13168                .with_project_items(&[
13169                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13170                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13171                ])
13172        });
13173        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13174        workspace.update_in(cx, |workspace, window, cx| {
13175            workspace.add_item(
13176                pane.clone(),
13177                Box::new(dirty_regular_buffer.clone()),
13178                None,
13179                false,
13180                false,
13181                window,
13182                cx,
13183            );
13184            workspace.add_item(
13185                pane.clone(),
13186                Box::new(dirty_regular_buffer_2.clone()),
13187                None,
13188                false,
13189                false,
13190                window,
13191                cx,
13192            );
13193            workspace.add_item(
13194                pane.clone(),
13195                Box::new(dirty_multi_buffer_with_both.clone()),
13196                None,
13197                false,
13198                false,
13199                window,
13200                cx,
13201            );
13202        });
13203
13204        pane.update_in(cx, |pane, window, cx| {
13205            pane.activate_item(2, true, true, window, cx);
13206            assert_eq!(
13207                pane.active_item().unwrap().item_id(),
13208                multi_buffer_with_both_files_id,
13209                "Should select the multi buffer in the pane"
13210            );
13211        });
13212        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13213            pane.close_other_items(
13214                &CloseOtherItems {
13215                    save_intent: Some(SaveIntent::Save),
13216                    close_pinned: true,
13217                },
13218                None,
13219                window,
13220                cx,
13221            )
13222        });
13223        cx.background_executor.run_until_parked();
13224        assert!(!cx.has_pending_prompt());
13225        close_all_but_multi_buffer_task
13226            .await
13227            .expect("Closing all buffers but the multi buffer failed");
13228        pane.update(cx, |pane, cx| {
13229            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
13230            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
13231            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
13232            assert_eq!(pane.items_len(), 1);
13233            assert_eq!(
13234                pane.active_item().unwrap().item_id(),
13235                multi_buffer_with_both_files_id,
13236                "Should have only the multi buffer left in the pane"
13237            );
13238            assert!(
13239                dirty_multi_buffer_with_both.read(cx).is_dirty,
13240                "The multi buffer containing the unsaved buffer should still be dirty"
13241            );
13242        });
13243
13244        dirty_regular_buffer.update(cx, |buffer, cx| {
13245            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
13246        });
13247
13248        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13249            pane.close_active_item(
13250                &CloseActiveItem {
13251                    save_intent: Some(SaveIntent::Close),
13252                    close_pinned: false,
13253                },
13254                window,
13255                cx,
13256            )
13257        });
13258        cx.background_executor.run_until_parked();
13259        assert!(
13260            cx.has_pending_prompt(),
13261            "Dirty multi buffer should prompt a save dialog"
13262        );
13263        cx.simulate_prompt_answer("Save");
13264        cx.background_executor.run_until_parked();
13265        close_multi_buffer_task
13266            .await
13267            .expect("Closing the multi buffer failed");
13268        pane.update(cx, |pane, cx| {
13269            assert_eq!(
13270                dirty_multi_buffer_with_both.read(cx).save_count,
13271                1,
13272                "Multi buffer item should get be saved"
13273            );
13274            // Test impl does not save inner items, so we do not assert them
13275            assert_eq!(
13276                pane.items_len(),
13277                0,
13278                "No more items should be left in the pane"
13279            );
13280            assert!(pane.active_item().is_none());
13281        });
13282    }
13283
13284    #[gpui::test]
13285    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13286        cx: &mut TestAppContext,
13287    ) {
13288        init_test(cx);
13289
13290        let fs = FakeFs::new(cx.background_executor.clone());
13291        let project = Project::test(fs, [], cx).await;
13292        let (workspace, cx) =
13293            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13294        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13295
13296        let dirty_regular_buffer = cx.new(|cx| {
13297            TestItem::new(cx)
13298                .with_dirty(true)
13299                .with_label("1.txt")
13300                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13301        });
13302        let dirty_regular_buffer_2 = cx.new(|cx| {
13303            TestItem::new(cx)
13304                .with_dirty(true)
13305                .with_label("2.txt")
13306                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13307        });
13308        let clear_regular_buffer = cx.new(|cx| {
13309            TestItem::new(cx)
13310                .with_label("3.txt")
13311                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13312        });
13313
13314        let dirty_multi_buffer_with_both = cx.new(|cx| {
13315            TestItem::new(cx)
13316                .with_dirty(true)
13317                .with_buffer_kind(ItemBufferKind::Multibuffer)
13318                .with_label("Fake Project Search")
13319                .with_project_items(&[
13320                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13321                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13322                    clear_regular_buffer.read(cx).project_items[0].clone(),
13323                ])
13324        });
13325        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13326        workspace.update_in(cx, |workspace, window, cx| {
13327            workspace.add_item(
13328                pane.clone(),
13329                Box::new(dirty_regular_buffer.clone()),
13330                None,
13331                false,
13332                false,
13333                window,
13334                cx,
13335            );
13336            workspace.add_item(
13337                pane.clone(),
13338                Box::new(dirty_multi_buffer_with_both.clone()),
13339                None,
13340                false,
13341                false,
13342                window,
13343                cx,
13344            );
13345        });
13346
13347        pane.update_in(cx, |pane, window, cx| {
13348            pane.activate_item(1, true, true, window, cx);
13349            assert_eq!(
13350                pane.active_item().unwrap().item_id(),
13351                multi_buffer_with_both_files_id,
13352                "Should select the multi buffer in the pane"
13353            );
13354        });
13355        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13356            pane.close_active_item(
13357                &CloseActiveItem {
13358                    save_intent: None,
13359                    close_pinned: false,
13360                },
13361                window,
13362                cx,
13363            )
13364        });
13365        cx.background_executor.run_until_parked();
13366        assert!(
13367            cx.has_pending_prompt(),
13368            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13369        );
13370    }
13371
13372    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13373    /// closed when they are deleted from disk.
13374    #[gpui::test]
13375    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13376        init_test(cx);
13377
13378        // Enable the close_on_disk_deletion setting
13379        cx.update_global(|store: &mut SettingsStore, cx| {
13380            store.update_user_settings(cx, |settings| {
13381                settings.workspace.close_on_file_delete = Some(true);
13382            });
13383        });
13384
13385        let fs = FakeFs::new(cx.background_executor.clone());
13386        let project = Project::test(fs, [], cx).await;
13387        let (workspace, cx) =
13388            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13389        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13390
13391        // Create a test item that simulates a file
13392        let item = cx.new(|cx| {
13393            TestItem::new(cx)
13394                .with_label("test.txt")
13395                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13396        });
13397
13398        // Add item to workspace
13399        workspace.update_in(cx, |workspace, window, cx| {
13400            workspace.add_item(
13401                pane.clone(),
13402                Box::new(item.clone()),
13403                None,
13404                false,
13405                false,
13406                window,
13407                cx,
13408            );
13409        });
13410
13411        // Verify the item is in the pane
13412        pane.read_with(cx, |pane, _| {
13413            assert_eq!(pane.items().count(), 1);
13414        });
13415
13416        // Simulate file deletion by setting the item's deleted state
13417        item.update(cx, |item, _| {
13418            item.set_has_deleted_file(true);
13419        });
13420
13421        // Emit UpdateTab event to trigger the close behavior
13422        cx.run_until_parked();
13423        item.update(cx, |_, cx| {
13424            cx.emit(ItemEvent::UpdateTab);
13425        });
13426
13427        // Allow the close operation to complete
13428        cx.run_until_parked();
13429
13430        // Verify the item was automatically closed
13431        pane.read_with(cx, |pane, _| {
13432            assert_eq!(
13433                pane.items().count(),
13434                0,
13435                "Item should be automatically closed when file is deleted"
13436            );
13437        });
13438    }
13439
13440    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13441    /// open with a strikethrough when they are deleted from disk.
13442    #[gpui::test]
13443    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13444        init_test(cx);
13445
13446        // Ensure close_on_disk_deletion is disabled (default)
13447        cx.update_global(|store: &mut SettingsStore, cx| {
13448            store.update_user_settings(cx, |settings| {
13449                settings.workspace.close_on_file_delete = Some(false);
13450            });
13451        });
13452
13453        let fs = FakeFs::new(cx.background_executor.clone());
13454        let project = Project::test(fs, [], cx).await;
13455        let (workspace, cx) =
13456            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13457        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13458
13459        // Create a test item that simulates a file
13460        let item = cx.new(|cx| {
13461            TestItem::new(cx)
13462                .with_label("test.txt")
13463                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13464        });
13465
13466        // Add item to workspace
13467        workspace.update_in(cx, |workspace, window, cx| {
13468            workspace.add_item(
13469                pane.clone(),
13470                Box::new(item.clone()),
13471                None,
13472                false,
13473                false,
13474                window,
13475                cx,
13476            );
13477        });
13478
13479        // Verify the item is in the pane
13480        pane.read_with(cx, |pane, _| {
13481            assert_eq!(pane.items().count(), 1);
13482        });
13483
13484        // Simulate file deletion
13485        item.update(cx, |item, _| {
13486            item.set_has_deleted_file(true);
13487        });
13488
13489        // Emit UpdateTab event
13490        cx.run_until_parked();
13491        item.update(cx, |_, cx| {
13492            cx.emit(ItemEvent::UpdateTab);
13493        });
13494
13495        // Allow any potential close operation to complete
13496        cx.run_until_parked();
13497
13498        // Verify the item remains open (with strikethrough)
13499        pane.read_with(cx, |pane, _| {
13500            assert_eq!(
13501                pane.items().count(),
13502                1,
13503                "Item should remain open when close_on_disk_deletion is disabled"
13504            );
13505        });
13506
13507        // Verify the item shows as deleted
13508        item.read_with(cx, |item, _| {
13509            assert!(
13510                item.has_deleted_file,
13511                "Item should be marked as having deleted file"
13512            );
13513        });
13514    }
13515
13516    /// Tests that dirty files are not automatically closed when deleted from disk,
13517    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13518    /// unsaved changes without being prompted.
13519    #[gpui::test]
13520    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13521        init_test(cx);
13522
13523        // Enable the close_on_file_delete setting
13524        cx.update_global(|store: &mut SettingsStore, cx| {
13525            store.update_user_settings(cx, |settings| {
13526                settings.workspace.close_on_file_delete = Some(true);
13527            });
13528        });
13529
13530        let fs = FakeFs::new(cx.background_executor.clone());
13531        let project = Project::test(fs, [], cx).await;
13532        let (workspace, cx) =
13533            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13534        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13535
13536        // Create a dirty test item
13537        let item = cx.new(|cx| {
13538            TestItem::new(cx)
13539                .with_dirty(true)
13540                .with_label("test.txt")
13541                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13542        });
13543
13544        // Add item to workspace
13545        workspace.update_in(cx, |workspace, window, cx| {
13546            workspace.add_item(
13547                pane.clone(),
13548                Box::new(item.clone()),
13549                None,
13550                false,
13551                false,
13552                window,
13553                cx,
13554            );
13555        });
13556
13557        // Simulate file deletion
13558        item.update(cx, |item, _| {
13559            item.set_has_deleted_file(true);
13560        });
13561
13562        // Emit UpdateTab event to trigger the close behavior
13563        cx.run_until_parked();
13564        item.update(cx, |_, cx| {
13565            cx.emit(ItemEvent::UpdateTab);
13566        });
13567
13568        // Allow any potential close operation to complete
13569        cx.run_until_parked();
13570
13571        // Verify the item remains open (dirty files are not auto-closed)
13572        pane.read_with(cx, |pane, _| {
13573            assert_eq!(
13574                pane.items().count(),
13575                1,
13576                "Dirty items should not be automatically closed even when file is deleted"
13577            );
13578        });
13579
13580        // Verify the item is marked as deleted and still dirty
13581        item.read_with(cx, |item, _| {
13582            assert!(
13583                item.has_deleted_file,
13584                "Item should be marked as having deleted file"
13585            );
13586            assert!(item.is_dirty, "Item should still be dirty");
13587        });
13588    }
13589
13590    /// Tests that navigation history is cleaned up when files are auto-closed
13591    /// due to deletion from disk.
13592    #[gpui::test]
13593    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13594        init_test(cx);
13595
13596        // Enable the close_on_file_delete setting
13597        cx.update_global(|store: &mut SettingsStore, cx| {
13598            store.update_user_settings(cx, |settings| {
13599                settings.workspace.close_on_file_delete = Some(true);
13600            });
13601        });
13602
13603        let fs = FakeFs::new(cx.background_executor.clone());
13604        let project = Project::test(fs, [], cx).await;
13605        let (workspace, cx) =
13606            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13607        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13608
13609        // Create test items
13610        let item1 = cx.new(|cx| {
13611            TestItem::new(cx)
13612                .with_label("test1.txt")
13613                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13614        });
13615        let item1_id = item1.item_id();
13616
13617        let item2 = cx.new(|cx| {
13618            TestItem::new(cx)
13619                .with_label("test2.txt")
13620                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13621        });
13622
13623        // Add items to workspace
13624        workspace.update_in(cx, |workspace, window, cx| {
13625            workspace.add_item(
13626                pane.clone(),
13627                Box::new(item1.clone()),
13628                None,
13629                false,
13630                false,
13631                window,
13632                cx,
13633            );
13634            workspace.add_item(
13635                pane.clone(),
13636                Box::new(item2.clone()),
13637                None,
13638                false,
13639                false,
13640                window,
13641                cx,
13642            );
13643        });
13644
13645        // Activate item1 to ensure it gets navigation entries
13646        pane.update_in(cx, |pane, window, cx| {
13647            pane.activate_item(0, true, true, window, cx);
13648        });
13649
13650        // Switch to item2 and back to create navigation history
13651        pane.update_in(cx, |pane, window, cx| {
13652            pane.activate_item(1, true, true, window, cx);
13653        });
13654        cx.run_until_parked();
13655
13656        pane.update_in(cx, |pane, window, cx| {
13657            pane.activate_item(0, true, true, window, cx);
13658        });
13659        cx.run_until_parked();
13660
13661        // Simulate file deletion for item1
13662        item1.update(cx, |item, _| {
13663            item.set_has_deleted_file(true);
13664        });
13665
13666        // Emit UpdateTab event to trigger the close behavior
13667        item1.update(cx, |_, cx| {
13668            cx.emit(ItemEvent::UpdateTab);
13669        });
13670        cx.run_until_parked();
13671
13672        // Verify item1 was closed
13673        pane.read_with(cx, |pane, _| {
13674            assert_eq!(
13675                pane.items().count(),
13676                1,
13677                "Should have 1 item remaining after auto-close"
13678            );
13679        });
13680
13681        // Check navigation history after close
13682        let has_item = pane.read_with(cx, |pane, cx| {
13683            let mut has_item = false;
13684            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13685                if entry.item.id() == item1_id {
13686                    has_item = true;
13687                }
13688            });
13689            has_item
13690        });
13691
13692        assert!(
13693            !has_item,
13694            "Navigation history should not contain closed item entries"
13695        );
13696    }
13697
13698    #[gpui::test]
13699    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13700        cx: &mut TestAppContext,
13701    ) {
13702        init_test(cx);
13703
13704        let fs = FakeFs::new(cx.background_executor.clone());
13705        let project = Project::test(fs, [], cx).await;
13706        let (workspace, cx) =
13707            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13708        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13709
13710        let dirty_regular_buffer = cx.new(|cx| {
13711            TestItem::new(cx)
13712                .with_dirty(true)
13713                .with_label("1.txt")
13714                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13715        });
13716        let dirty_regular_buffer_2 = cx.new(|cx| {
13717            TestItem::new(cx)
13718                .with_dirty(true)
13719                .with_label("2.txt")
13720                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13721        });
13722        let clear_regular_buffer = cx.new(|cx| {
13723            TestItem::new(cx)
13724                .with_label("3.txt")
13725                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13726        });
13727
13728        let dirty_multi_buffer = cx.new(|cx| {
13729            TestItem::new(cx)
13730                .with_dirty(true)
13731                .with_buffer_kind(ItemBufferKind::Multibuffer)
13732                .with_label("Fake Project Search")
13733                .with_project_items(&[
13734                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13735                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13736                    clear_regular_buffer.read(cx).project_items[0].clone(),
13737                ])
13738        });
13739        workspace.update_in(cx, |workspace, window, cx| {
13740            workspace.add_item(
13741                pane.clone(),
13742                Box::new(dirty_regular_buffer.clone()),
13743                None,
13744                false,
13745                false,
13746                window,
13747                cx,
13748            );
13749            workspace.add_item(
13750                pane.clone(),
13751                Box::new(dirty_regular_buffer_2.clone()),
13752                None,
13753                false,
13754                false,
13755                window,
13756                cx,
13757            );
13758            workspace.add_item(
13759                pane.clone(),
13760                Box::new(dirty_multi_buffer.clone()),
13761                None,
13762                false,
13763                false,
13764                window,
13765                cx,
13766            );
13767        });
13768
13769        pane.update_in(cx, |pane, window, cx| {
13770            pane.activate_item(2, true, true, window, cx);
13771            assert_eq!(
13772                pane.active_item().unwrap().item_id(),
13773                dirty_multi_buffer.item_id(),
13774                "Should select the multi buffer in the pane"
13775            );
13776        });
13777        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13778            pane.close_active_item(
13779                &CloseActiveItem {
13780                    save_intent: None,
13781                    close_pinned: false,
13782                },
13783                window,
13784                cx,
13785            )
13786        });
13787        cx.background_executor.run_until_parked();
13788        assert!(
13789            !cx.has_pending_prompt(),
13790            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
13791        );
13792        close_multi_buffer_task
13793            .await
13794            .expect("Closing multi buffer failed");
13795        pane.update(cx, |pane, cx| {
13796            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
13797            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
13798            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
13799            assert_eq!(
13800                pane.items()
13801                    .map(|item| item.item_id())
13802                    .sorted()
13803                    .collect::<Vec<_>>(),
13804                vec![
13805                    dirty_regular_buffer.item_id(),
13806                    dirty_regular_buffer_2.item_id(),
13807                ],
13808                "Should have no multi buffer left in the pane"
13809            );
13810            assert!(dirty_regular_buffer.read(cx).is_dirty);
13811            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
13812        });
13813    }
13814
13815    #[gpui::test]
13816    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
13817        init_test(cx);
13818        let fs = FakeFs::new(cx.executor());
13819        let project = Project::test(fs, [], cx).await;
13820        let (multi_workspace, cx) =
13821            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13822        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13823
13824        // Add a new panel to the right dock, opening the dock and setting the
13825        // focus to the new panel.
13826        let panel = workspace.update_in(cx, |workspace, window, cx| {
13827            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13828            workspace.add_panel(panel.clone(), window, cx);
13829
13830            workspace
13831                .right_dock()
13832                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
13833
13834            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13835
13836            panel
13837        });
13838
13839        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13840        // panel to the next valid position which, in this case, is the left
13841        // dock.
13842        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13843        workspace.update(cx, |workspace, cx| {
13844            assert!(workspace.left_dock().read(cx).is_open());
13845            assert_eq!(panel.read(cx).position, DockPosition::Left);
13846        });
13847
13848        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
13849        // panel to the next valid position which, in this case, is the bottom
13850        // dock.
13851        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13852        workspace.update(cx, |workspace, cx| {
13853            assert!(workspace.bottom_dock().read(cx).is_open());
13854            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
13855        });
13856
13857        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
13858        // around moving the panel to its initial position, the right dock.
13859        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13860        workspace.update(cx, |workspace, cx| {
13861            assert!(workspace.right_dock().read(cx).is_open());
13862            assert_eq!(panel.read(cx).position, DockPosition::Right);
13863        });
13864
13865        // Remove focus from the panel, ensuring that, if the panel is not
13866        // focused, the `MoveFocusedPanelToNextPosition` action does not update
13867        // the panel's position, so the panel is still in the right dock.
13868        workspace.update_in(cx, |workspace, window, cx| {
13869            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13870        });
13871
13872        cx.dispatch_action(MoveFocusedPanelToNextPosition);
13873        workspace.update(cx, |workspace, cx| {
13874            assert!(workspace.right_dock().read(cx).is_open());
13875            assert_eq!(panel.read(cx).position, DockPosition::Right);
13876        });
13877    }
13878
13879    #[gpui::test]
13880    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
13881        init_test(cx);
13882
13883        let fs = FakeFs::new(cx.executor());
13884        let project = Project::test(fs, [], cx).await;
13885        let (workspace, cx) =
13886            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
13887
13888        let item_1 = cx.new(|cx| {
13889            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
13890        });
13891        workspace.update_in(cx, |workspace, window, cx| {
13892            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
13893            workspace.move_item_to_pane_in_direction(
13894                &MoveItemToPaneInDirection {
13895                    direction: SplitDirection::Right,
13896                    focus: true,
13897                    clone: false,
13898                },
13899                window,
13900                cx,
13901            );
13902            workspace.move_item_to_pane_at_index(
13903                &MoveItemToPane {
13904                    destination: 3,
13905                    focus: true,
13906                    clone: false,
13907                },
13908                window,
13909                cx,
13910            );
13911
13912            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
13913            assert_eq!(
13914                pane_items_paths(&workspace.active_pane, cx),
13915                vec!["first.txt".to_string()],
13916                "Single item was not moved anywhere"
13917            );
13918        });
13919
13920        let item_2 = cx.new(|cx| {
13921            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
13922        });
13923        workspace.update_in(cx, |workspace, window, cx| {
13924            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
13925            assert_eq!(
13926                pane_items_paths(&workspace.panes[0], cx),
13927                vec!["first.txt".to_string(), "second.txt".to_string()],
13928            );
13929            workspace.move_item_to_pane_in_direction(
13930                &MoveItemToPaneInDirection {
13931                    direction: SplitDirection::Right,
13932                    focus: true,
13933                    clone: false,
13934                },
13935                window,
13936                cx,
13937            );
13938
13939            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
13940            assert_eq!(
13941                pane_items_paths(&workspace.panes[0], cx),
13942                vec!["first.txt".to_string()],
13943                "After moving, one item should be left in the original pane"
13944            );
13945            assert_eq!(
13946                pane_items_paths(&workspace.panes[1], cx),
13947                vec!["second.txt".to_string()],
13948                "New item should have been moved to the new pane"
13949            );
13950        });
13951
13952        let item_3 = cx.new(|cx| {
13953            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
13954        });
13955        workspace.update_in(cx, |workspace, window, cx| {
13956            let original_pane = workspace.panes[0].clone();
13957            workspace.set_active_pane(&original_pane, window, cx);
13958            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
13959            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
13960            assert_eq!(
13961                pane_items_paths(&workspace.active_pane, cx),
13962                vec!["first.txt".to_string(), "third.txt".to_string()],
13963                "New pane should be ready to move one item out"
13964            );
13965
13966            workspace.move_item_to_pane_at_index(
13967                &MoveItemToPane {
13968                    destination: 3,
13969                    focus: true,
13970                    clone: false,
13971                },
13972                window,
13973                cx,
13974            );
13975            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
13976            assert_eq!(
13977                pane_items_paths(&workspace.active_pane, cx),
13978                vec!["first.txt".to_string()],
13979                "After moving, one item should be left in the original pane"
13980            );
13981            assert_eq!(
13982                pane_items_paths(&workspace.panes[1], cx),
13983                vec!["second.txt".to_string()],
13984                "Previously created pane should be unchanged"
13985            );
13986            assert_eq!(
13987                pane_items_paths(&workspace.panes[2], cx),
13988                vec!["third.txt".to_string()],
13989                "New item should have been moved to the new pane"
13990            );
13991        });
13992    }
13993
13994    #[gpui::test]
13995    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
13996        init_test(cx);
13997
13998        let fs = FakeFs::new(cx.executor());
13999        let project = Project::test(fs, [], cx).await;
14000        let (workspace, cx) =
14001            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14002
14003        let item_1 = cx.new(|cx| {
14004            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
14005        });
14006        workspace.update_in(cx, |workspace, window, cx| {
14007            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
14008            workspace.move_item_to_pane_in_direction(
14009                &MoveItemToPaneInDirection {
14010                    direction: SplitDirection::Right,
14011                    focus: true,
14012                    clone: true,
14013                },
14014                window,
14015                cx,
14016            );
14017        });
14018        cx.run_until_parked();
14019        workspace.update_in(cx, |workspace, window, cx| {
14020            workspace.move_item_to_pane_at_index(
14021                &MoveItemToPane {
14022                    destination: 3,
14023                    focus: true,
14024                    clone: true,
14025                },
14026                window,
14027                cx,
14028            );
14029        });
14030        cx.run_until_parked();
14031
14032        workspace.update(cx, |workspace, cx| {
14033            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
14034            for pane in workspace.panes() {
14035                assert_eq!(
14036                    pane_items_paths(pane, cx),
14037                    vec!["first.txt".to_string()],
14038                    "Single item exists in all panes"
14039                );
14040            }
14041        });
14042
14043        // verify that the active pane has been updated after waiting for the
14044        // pane focus event to fire and resolve
14045        workspace.read_with(cx, |workspace, _app| {
14046            assert_eq!(
14047                workspace.active_pane(),
14048                &workspace.panes[2],
14049                "The third pane should be the active one: {:?}",
14050                workspace.panes
14051            );
14052        })
14053    }
14054
14055    #[gpui::test]
14056    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
14057        init_test(cx);
14058
14059        let fs = FakeFs::new(cx.executor());
14060        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
14061
14062        let project = Project::test(fs, ["root".as_ref()], cx).await;
14063        let (workspace, cx) =
14064            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14065
14066        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14067        // Add item to pane A with project path
14068        let item_a = cx.new(|cx| {
14069            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14070        });
14071        workspace.update_in(cx, |workspace, window, cx| {
14072            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
14073        });
14074
14075        // Split to create pane B
14076        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
14077            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
14078        });
14079
14080        // Add item with SAME project path to pane B, and pin it
14081        let item_b = cx.new(|cx| {
14082            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14083        });
14084        pane_b.update_in(cx, |pane, window, cx| {
14085            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14086            pane.set_pinned_count(1);
14087        });
14088
14089        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
14090        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
14091
14092        // close_pinned: false should only close the unpinned copy
14093        workspace.update_in(cx, |workspace, window, cx| {
14094            workspace.close_item_in_all_panes(
14095                &CloseItemInAllPanes {
14096                    save_intent: Some(SaveIntent::Close),
14097                    close_pinned: false,
14098                },
14099                window,
14100                cx,
14101            )
14102        });
14103        cx.executor().run_until_parked();
14104
14105        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
14106        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14107        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
14108        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
14109
14110        // Split again, seeing as closing the previous item also closed its
14111        // pane, so only pane remains, which does not allow us to properly test
14112        // that both items close when `close_pinned: true`.
14113        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
14114            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
14115        });
14116
14117        // Add an item with the same project path to pane C so that
14118        // close_item_in_all_panes can determine what to close across all panes
14119        // (it reads the active item from the active pane, and split_pane
14120        // creates an empty pane).
14121        let item_c = cx.new(|cx| {
14122            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14123        });
14124        pane_c.update_in(cx, |pane, window, cx| {
14125            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
14126        });
14127
14128        // close_pinned: true should close the pinned copy too
14129        workspace.update_in(cx, |workspace, window, cx| {
14130            let panes_count = workspace.panes().len();
14131            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
14132
14133            workspace.close_item_in_all_panes(
14134                &CloseItemInAllPanes {
14135                    save_intent: Some(SaveIntent::Close),
14136                    close_pinned: true,
14137                },
14138                window,
14139                cx,
14140            )
14141        });
14142        cx.executor().run_until_parked();
14143
14144        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14145        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
14146        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
14147        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
14148    }
14149
14150    mod register_project_item_tests {
14151
14152        use super::*;
14153
14154        // View
14155        struct TestPngItemView {
14156            focus_handle: FocusHandle,
14157        }
14158        // Model
14159        struct TestPngItem {}
14160
14161        impl project::ProjectItem for TestPngItem {
14162            fn try_open(
14163                _project: &Entity<Project>,
14164                path: &ProjectPath,
14165                cx: &mut App,
14166            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14167                if path.path.extension().unwrap() == "png" {
14168                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
14169                } else {
14170                    None
14171                }
14172            }
14173
14174            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14175                None
14176            }
14177
14178            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14179                None
14180            }
14181
14182            fn is_dirty(&self) -> bool {
14183                false
14184            }
14185        }
14186
14187        impl Item for TestPngItemView {
14188            type Event = ();
14189            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14190                "".into()
14191            }
14192        }
14193        impl EventEmitter<()> for TestPngItemView {}
14194        impl Focusable for TestPngItemView {
14195            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14196                self.focus_handle.clone()
14197            }
14198        }
14199
14200        impl Render for TestPngItemView {
14201            fn render(
14202                &mut self,
14203                _window: &mut Window,
14204                _cx: &mut Context<Self>,
14205            ) -> impl IntoElement {
14206                Empty
14207            }
14208        }
14209
14210        impl ProjectItem for TestPngItemView {
14211            type Item = TestPngItem;
14212
14213            fn for_project_item(
14214                _project: Entity<Project>,
14215                _pane: Option<&Pane>,
14216                _item: Entity<Self::Item>,
14217                _: &mut Window,
14218                cx: &mut Context<Self>,
14219            ) -> Self
14220            where
14221                Self: Sized,
14222            {
14223                Self {
14224                    focus_handle: cx.focus_handle(),
14225                }
14226            }
14227        }
14228
14229        // View
14230        struct TestIpynbItemView {
14231            focus_handle: FocusHandle,
14232        }
14233        // Model
14234        struct TestIpynbItem {}
14235
14236        impl project::ProjectItem for TestIpynbItem {
14237            fn try_open(
14238                _project: &Entity<Project>,
14239                path: &ProjectPath,
14240                cx: &mut App,
14241            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14242                if path.path.extension().unwrap() == "ipynb" {
14243                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
14244                } else {
14245                    None
14246                }
14247            }
14248
14249            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14250                None
14251            }
14252
14253            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14254                None
14255            }
14256
14257            fn is_dirty(&self) -> bool {
14258                false
14259            }
14260        }
14261
14262        impl Item for TestIpynbItemView {
14263            type Event = ();
14264            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14265                "".into()
14266            }
14267        }
14268        impl EventEmitter<()> for TestIpynbItemView {}
14269        impl Focusable for TestIpynbItemView {
14270            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14271                self.focus_handle.clone()
14272            }
14273        }
14274
14275        impl Render for TestIpynbItemView {
14276            fn render(
14277                &mut self,
14278                _window: &mut Window,
14279                _cx: &mut Context<Self>,
14280            ) -> impl IntoElement {
14281                Empty
14282            }
14283        }
14284
14285        impl ProjectItem for TestIpynbItemView {
14286            type Item = TestIpynbItem;
14287
14288            fn for_project_item(
14289                _project: Entity<Project>,
14290                _pane: Option<&Pane>,
14291                _item: Entity<Self::Item>,
14292                _: &mut Window,
14293                cx: &mut Context<Self>,
14294            ) -> Self
14295            where
14296                Self: Sized,
14297            {
14298                Self {
14299                    focus_handle: cx.focus_handle(),
14300                }
14301            }
14302        }
14303
14304        struct TestAlternatePngItemView {
14305            focus_handle: FocusHandle,
14306        }
14307
14308        impl Item for TestAlternatePngItemView {
14309            type Event = ();
14310            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14311                "".into()
14312            }
14313        }
14314
14315        impl EventEmitter<()> for TestAlternatePngItemView {}
14316        impl Focusable for TestAlternatePngItemView {
14317            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14318                self.focus_handle.clone()
14319            }
14320        }
14321
14322        impl Render for TestAlternatePngItemView {
14323            fn render(
14324                &mut self,
14325                _window: &mut Window,
14326                _cx: &mut Context<Self>,
14327            ) -> impl IntoElement {
14328                Empty
14329            }
14330        }
14331
14332        impl ProjectItem for TestAlternatePngItemView {
14333            type Item = TestPngItem;
14334
14335            fn for_project_item(
14336                _project: Entity<Project>,
14337                _pane: Option<&Pane>,
14338                _item: Entity<Self::Item>,
14339                _: &mut Window,
14340                cx: &mut Context<Self>,
14341            ) -> Self
14342            where
14343                Self: Sized,
14344            {
14345                Self {
14346                    focus_handle: cx.focus_handle(),
14347                }
14348            }
14349        }
14350
14351        #[gpui::test]
14352        async fn test_register_project_item(cx: &mut TestAppContext) {
14353            init_test(cx);
14354
14355            cx.update(|cx| {
14356                register_project_item::<TestPngItemView>(cx);
14357                register_project_item::<TestIpynbItemView>(cx);
14358            });
14359
14360            let fs = FakeFs::new(cx.executor());
14361            fs.insert_tree(
14362                "/root1",
14363                json!({
14364                    "one.png": "BINARYDATAHERE",
14365                    "two.ipynb": "{ totally a notebook }",
14366                    "three.txt": "editing text, sure why not?"
14367                }),
14368            )
14369            .await;
14370
14371            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14372            let (workspace, cx) =
14373                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14374
14375            let worktree_id = project.update(cx, |project, cx| {
14376                project.worktrees(cx).next().unwrap().read(cx).id()
14377            });
14378
14379            let handle = workspace
14380                .update_in(cx, |workspace, window, cx| {
14381                    let project_path = (worktree_id, rel_path("one.png"));
14382                    workspace.open_path(project_path, None, true, window, cx)
14383                })
14384                .await
14385                .unwrap();
14386
14387            // Now we can check if the handle we got back errored or not
14388            assert_eq!(
14389                handle.to_any_view().entity_type(),
14390                TypeId::of::<TestPngItemView>()
14391            );
14392
14393            let handle = workspace
14394                .update_in(cx, |workspace, window, cx| {
14395                    let project_path = (worktree_id, rel_path("two.ipynb"));
14396                    workspace.open_path(project_path, None, true, window, cx)
14397                })
14398                .await
14399                .unwrap();
14400
14401            assert_eq!(
14402                handle.to_any_view().entity_type(),
14403                TypeId::of::<TestIpynbItemView>()
14404            );
14405
14406            let handle = workspace
14407                .update_in(cx, |workspace, window, cx| {
14408                    let project_path = (worktree_id, rel_path("three.txt"));
14409                    workspace.open_path(project_path, None, true, window, cx)
14410                })
14411                .await;
14412            assert!(handle.is_err());
14413        }
14414
14415        #[gpui::test]
14416        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14417            init_test(cx);
14418
14419            cx.update(|cx| {
14420                register_project_item::<TestPngItemView>(cx);
14421                register_project_item::<TestAlternatePngItemView>(cx);
14422            });
14423
14424            let fs = FakeFs::new(cx.executor());
14425            fs.insert_tree(
14426                "/root1",
14427                json!({
14428                    "one.png": "BINARYDATAHERE",
14429                    "two.ipynb": "{ totally a notebook }",
14430                    "three.txt": "editing text, sure why not?"
14431                }),
14432            )
14433            .await;
14434            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14435            let (workspace, cx) =
14436                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14437            let worktree_id = project.update(cx, |project, cx| {
14438                project.worktrees(cx).next().unwrap().read(cx).id()
14439            });
14440
14441            let handle = workspace
14442                .update_in(cx, |workspace, window, cx| {
14443                    let project_path = (worktree_id, rel_path("one.png"));
14444                    workspace.open_path(project_path, None, true, window, cx)
14445                })
14446                .await
14447                .unwrap();
14448
14449            // This _must_ be the second item registered
14450            assert_eq!(
14451                handle.to_any_view().entity_type(),
14452                TypeId::of::<TestAlternatePngItemView>()
14453            );
14454
14455            let handle = workspace
14456                .update_in(cx, |workspace, window, cx| {
14457                    let project_path = (worktree_id, rel_path("three.txt"));
14458                    workspace.open_path(project_path, None, true, window, cx)
14459                })
14460                .await;
14461            assert!(handle.is_err());
14462        }
14463    }
14464
14465    #[gpui::test]
14466    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14467        init_test(cx);
14468
14469        let fs = FakeFs::new(cx.executor());
14470        let project = Project::test(fs, [], cx).await;
14471        let (workspace, _cx) =
14472            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14473
14474        // Test with status bar shown (default)
14475        workspace.read_with(cx, |workspace, cx| {
14476            let visible = workspace.status_bar_visible(cx);
14477            assert!(visible, "Status bar should be visible by default");
14478        });
14479
14480        // Test with status bar hidden
14481        cx.update_global(|store: &mut SettingsStore, cx| {
14482            store.update_user_settings(cx, |settings| {
14483                settings.status_bar.get_or_insert_default().show = Some(false);
14484            });
14485        });
14486
14487        workspace.read_with(cx, |workspace, cx| {
14488            let visible = workspace.status_bar_visible(cx);
14489            assert!(!visible, "Status bar should be hidden when show is false");
14490        });
14491
14492        // Test with status bar shown explicitly
14493        cx.update_global(|store: &mut SettingsStore, cx| {
14494            store.update_user_settings(cx, |settings| {
14495                settings.status_bar.get_or_insert_default().show = Some(true);
14496            });
14497        });
14498
14499        workspace.read_with(cx, |workspace, cx| {
14500            let visible = workspace.status_bar_visible(cx);
14501            assert!(visible, "Status bar should be visible when show is true");
14502        });
14503    }
14504
14505    #[gpui::test]
14506    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14507        init_test(cx);
14508
14509        let fs = FakeFs::new(cx.executor());
14510        let project = Project::test(fs, [], cx).await;
14511        let (multi_workspace, cx) =
14512            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14513        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14514        let panel = workspace.update_in(cx, |workspace, window, cx| {
14515            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14516            workspace.add_panel(panel.clone(), window, cx);
14517
14518            workspace
14519                .right_dock()
14520                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14521
14522            panel
14523        });
14524
14525        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14526        let item_a = cx.new(TestItem::new);
14527        let item_b = cx.new(TestItem::new);
14528        let item_a_id = item_a.entity_id();
14529        let item_b_id = item_b.entity_id();
14530
14531        pane.update_in(cx, |pane, window, cx| {
14532            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14533            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14534        });
14535
14536        pane.read_with(cx, |pane, _| {
14537            assert_eq!(pane.items_len(), 2);
14538            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14539        });
14540
14541        workspace.update_in(cx, |workspace, window, cx| {
14542            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14543        });
14544
14545        workspace.update_in(cx, |_, window, cx| {
14546            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14547        });
14548
14549        // Assert that the `pane::CloseActiveItem` action is handled at the
14550        // workspace level when one of the dock panels is focused and, in that
14551        // case, the center pane's active item is closed but the focus is not
14552        // moved.
14553        cx.dispatch_action(pane::CloseActiveItem::default());
14554        cx.run_until_parked();
14555
14556        pane.read_with(cx, |pane, _| {
14557            assert_eq!(pane.items_len(), 1);
14558            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14559        });
14560
14561        workspace.update_in(cx, |workspace, window, cx| {
14562            assert!(workspace.right_dock().read(cx).is_open());
14563            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14564        });
14565    }
14566
14567    #[gpui::test]
14568    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14569        init_test(cx);
14570        let fs = FakeFs::new(cx.executor());
14571
14572        let project_a = Project::test(fs.clone(), [], cx).await;
14573        let project_b = Project::test(fs, [], cx).await;
14574
14575        let multi_workspace_handle =
14576            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14577        cx.run_until_parked();
14578
14579        multi_workspace_handle
14580            .update(cx, |mw, _window, cx| {
14581                mw.open_sidebar(cx);
14582            })
14583            .unwrap();
14584
14585        let workspace_a = multi_workspace_handle
14586            .read_with(cx, |mw, _| mw.workspace().clone())
14587            .unwrap();
14588
14589        let _workspace_b = multi_workspace_handle
14590            .update(cx, |mw, window, cx| {
14591                mw.test_add_workspace(project_b, window, cx)
14592            })
14593            .unwrap();
14594
14595        // Switch to workspace A
14596        multi_workspace_handle
14597            .update(cx, |mw, window, cx| {
14598                let workspace = mw.workspaces().next().unwrap().clone();
14599                mw.activate(workspace, window, cx);
14600            })
14601            .unwrap();
14602
14603        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14604
14605        // Add a panel to workspace A's right dock and open the dock
14606        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14607            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14608            workspace.add_panel(panel.clone(), window, cx);
14609            workspace
14610                .right_dock()
14611                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14612            panel
14613        });
14614
14615        // Focus the panel through the workspace (matching existing test pattern)
14616        workspace_a.update_in(cx, |workspace, window, cx| {
14617            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14618        });
14619
14620        // Zoom the panel
14621        panel.update_in(cx, |panel, window, cx| {
14622            panel.set_zoomed(true, window, cx);
14623        });
14624
14625        // Verify the panel is zoomed and the dock is open
14626        workspace_a.update_in(cx, |workspace, window, cx| {
14627            assert!(
14628                workspace.right_dock().read(cx).is_open(),
14629                "dock should be open before switch"
14630            );
14631            assert!(
14632                panel.is_zoomed(window, cx),
14633                "panel should be zoomed before switch"
14634            );
14635            assert!(
14636                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14637                "panel should be focused before switch"
14638            );
14639        });
14640
14641        // Switch to workspace B
14642        multi_workspace_handle
14643            .update(cx, |mw, window, cx| {
14644                let workspace = mw.workspaces().nth(1).unwrap().clone();
14645                mw.activate(workspace, window, cx);
14646            })
14647            .unwrap();
14648        cx.run_until_parked();
14649
14650        // Switch back to workspace A
14651        multi_workspace_handle
14652            .update(cx, |mw, window, cx| {
14653                let workspace = mw.workspaces().next().unwrap().clone();
14654                mw.activate(workspace, window, cx);
14655            })
14656            .unwrap();
14657        cx.run_until_parked();
14658
14659        // Verify the panel is still zoomed and the dock is still open
14660        workspace_a.update_in(cx, |workspace, window, cx| {
14661            assert!(
14662                workspace.right_dock().read(cx).is_open(),
14663                "dock should still be open after switching back"
14664            );
14665            assert!(
14666                panel.is_zoomed(window, cx),
14667                "panel should still be zoomed after switching back"
14668            );
14669        });
14670    }
14671
14672    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14673        pane.read(cx)
14674            .items()
14675            .flat_map(|item| {
14676                item.project_paths(cx)
14677                    .into_iter()
14678                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14679            })
14680            .collect()
14681    }
14682
14683    pub fn init_test(cx: &mut TestAppContext) {
14684        cx.update(|cx| {
14685            let settings_store = SettingsStore::test(cx);
14686            cx.set_global(settings_store);
14687            cx.set_global(db::AppDatabase::test_new());
14688            theme_settings::init(theme::LoadThemes::JustBase, cx);
14689        });
14690    }
14691
14692    #[gpui::test]
14693    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14694        use settings::{ThemeName, ThemeSelection};
14695        use theme::SystemAppearance;
14696        use zed_actions::theme::ToggleMode;
14697
14698        init_test(cx);
14699
14700        let fs = FakeFs::new(cx.executor());
14701        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14702
14703        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14704            .await;
14705
14706        // Build a test project and workspace view so the test can invoke
14707        // the workspace action handler the same way the UI would.
14708        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14709        let (workspace, cx) =
14710            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14711
14712        // Seed the settings file with a plain static light theme so the
14713        // first toggle always starts from a known persisted state.
14714        workspace.update_in(cx, |_workspace, _window, cx| {
14715            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14716            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14717                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14718            });
14719        });
14720        cx.executor().advance_clock(Duration::from_millis(200));
14721        cx.run_until_parked();
14722
14723        // Confirm the initial persisted settings contain the static theme
14724        // we just wrote before any toggling happens.
14725        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14726        assert!(settings_text.contains(r#""theme": "One Light""#));
14727
14728        // Toggle once. This should migrate the persisted theme settings
14729        // into light/dark slots and enable system mode.
14730        workspace.update_in(cx, |workspace, window, cx| {
14731            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14732        });
14733        cx.executor().advance_clock(Duration::from_millis(200));
14734        cx.run_until_parked();
14735
14736        // 1. Static -> Dynamic
14737        // this assertion checks theme changed from static to dynamic.
14738        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14739        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14740        assert_eq!(
14741            parsed["theme"],
14742            serde_json::json!({
14743                "mode": "system",
14744                "light": "One Light",
14745                "dark": "One Dark"
14746            })
14747        );
14748
14749        // 2. Toggle again, suppose it will change the mode to light
14750        workspace.update_in(cx, |workspace, window, cx| {
14751            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14752        });
14753        cx.executor().advance_clock(Duration::from_millis(200));
14754        cx.run_until_parked();
14755
14756        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14757        assert!(settings_text.contains(r#""mode": "light""#));
14758    }
14759
14760    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14761        let item = TestProjectItem::new(id, path, cx);
14762        item.update(cx, |item, _| {
14763            item.is_dirty = true;
14764        });
14765        item
14766    }
14767
14768    #[gpui::test]
14769    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14770        cx: &mut gpui::TestAppContext,
14771    ) {
14772        init_test(cx);
14773        let fs = FakeFs::new(cx.executor());
14774
14775        let project = Project::test(fs, [], cx).await;
14776        let (workspace, cx) =
14777            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14778
14779        let panel = workspace.update_in(cx, |workspace, window, cx| {
14780            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14781            workspace.add_panel(panel.clone(), window, cx);
14782            workspace
14783                .right_dock()
14784                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14785            panel
14786        });
14787
14788        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14789        pane.update_in(cx, |pane, window, cx| {
14790            let item = cx.new(TestItem::new);
14791            pane.add_item(Box::new(item), true, true, None, window, cx);
14792        });
14793
14794        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
14795        // mirrors the real-world flow and avoids side effects from directly
14796        // focusing the panel while the center pane is active.
14797        workspace.update_in(cx, |workspace, window, cx| {
14798            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14799        });
14800
14801        panel.update_in(cx, |panel, window, cx| {
14802            panel.set_zoomed(true, window, cx);
14803        });
14804
14805        workspace.update_in(cx, |workspace, window, cx| {
14806            assert!(workspace.right_dock().read(cx).is_open());
14807            assert!(panel.is_zoomed(window, cx));
14808            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14809        });
14810
14811        // Simulate a spurious pane::Event::Focus on the center pane while the
14812        // panel still has focus. This mirrors what happens during macOS window
14813        // activation: the center pane fires a focus event even though actual
14814        // focus remains on the dock panel.
14815        pane.update_in(cx, |_, _, cx| {
14816            cx.emit(pane::Event::Focus);
14817        });
14818
14819        // The dock must remain open because the panel had focus at the time the
14820        // event was processed. Before the fix, dock_to_preserve was None for
14821        // panels that don't implement pane(), causing the dock to close.
14822        workspace.update_in(cx, |workspace, window, cx| {
14823            assert!(
14824                workspace.right_dock().read(cx).is_open(),
14825                "Dock should stay open when its zoomed panel (without pane()) still has focus"
14826            );
14827            assert!(panel.is_zoomed(window, cx));
14828        });
14829    }
14830
14831    #[gpui::test]
14832    async fn test_panels_stay_open_after_position_change_and_settings_update(
14833        cx: &mut gpui::TestAppContext,
14834    ) {
14835        init_test(cx);
14836        let fs = FakeFs::new(cx.executor());
14837        let project = Project::test(fs, [], cx).await;
14838        let (workspace, cx) =
14839            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14840
14841        // Add two panels to the left dock and open it.
14842        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
14843            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
14844            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
14845            workspace.add_panel(panel_a.clone(), window, cx);
14846            workspace.add_panel(panel_b.clone(), window, cx);
14847            workspace.left_dock().update(cx, |dock, cx| {
14848                dock.set_open(true, window, cx);
14849                dock.activate_panel(0, window, cx);
14850            });
14851            (panel_a, panel_b)
14852        });
14853
14854        workspace.update_in(cx, |workspace, _, cx| {
14855            assert!(workspace.left_dock().read(cx).is_open());
14856        });
14857
14858        // Simulate a feature flag changing default dock positions: both panels
14859        // move from Left to Right.
14860        workspace.update_in(cx, |_workspace, _window, cx| {
14861            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
14862            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
14863            cx.update_global::<SettingsStore, _>(|_, _| {});
14864        });
14865
14866        // Both panels should now be in the right dock.
14867        workspace.update_in(cx, |workspace, _, cx| {
14868            let right_dock = workspace.right_dock().read(cx);
14869            assert_eq!(right_dock.panels_len(), 2);
14870        });
14871
14872        // Open the right dock and activate panel_b (simulating the user
14873        // opening the panel after it moved).
14874        workspace.update_in(cx, |workspace, window, cx| {
14875            workspace.right_dock().update(cx, |dock, cx| {
14876                dock.set_open(true, window, cx);
14877                dock.activate_panel(1, window, cx);
14878            });
14879        });
14880
14881        // Now trigger another SettingsStore change
14882        workspace.update_in(cx, |_workspace, _window, cx| {
14883            cx.update_global::<SettingsStore, _>(|_, _| {});
14884        });
14885
14886        workspace.update_in(cx, |workspace, _, cx| {
14887            assert!(
14888                workspace.right_dock().read(cx).is_open(),
14889                "Right dock should still be open after a settings change"
14890            );
14891            assert_eq!(
14892                workspace.right_dock().read(cx).panels_len(),
14893                2,
14894                "Both panels should still be in the right dock"
14895            );
14896        });
14897    }
14898}