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, MoveProjectToNewWindow,
   35    MultiWorkspace, MultiWorkspaceEvent, NewThread, NextProject, NextThread, PreviousProject,
   36    PreviousThread, ProjectGroup, ProjectGroupKey, SerializedProjectGroupState, ShowFewerThreads,
   37    ShowMoreThreads, Sidebar, SidebarEvent, SidebarHandle, SidebarRenderState, SidebarSide,
   38    ToggleWorkspaceSidebar, 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        SerializedProjectGroup, SerializedWorkspaceLocation, SessionWorkspace,
   91    },
   92    read_serialized_multi_workspaces, resolve_worktree_workspaces,
   93};
   94use postage::stream::Stream;
   95use project::{
   96    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   97    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    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1330    active_pane: Entity<Pane>,
 1331    last_active_center_pane: Option<WeakEntity<Pane>>,
 1332    last_active_view_id: Option<proto::ViewId>,
 1333    status_bar: Entity<StatusBar>,
 1334    pub(crate) modal_layer: Entity<ModalLayer>,
 1335    toast_layer: Entity<ToastLayer>,
 1336    titlebar_item: Option<AnyView>,
 1337    notifications: Notifications,
 1338    suppressed_notifications: HashSet<NotificationId>,
 1339    project: Entity<Project>,
 1340    follower_states: HashMap<CollaboratorId, FollowerState>,
 1341    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1342    window_edited: bool,
 1343    last_window_title: Option<String>,
 1344    dirty_items: HashMap<EntityId, Subscription>,
 1345    active_call: Option<(GlobalAnyActiveCall, Vec<Subscription>)>,
 1346    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1347    database_id: Option<WorkspaceId>,
 1348    app_state: Arc<AppState>,
 1349    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1350    _subscriptions: Vec<Subscription>,
 1351    _apply_leader_updates: Task<Result<()>>,
 1352    _observe_current_user: Task<Result<()>>,
 1353    _schedule_serialize_workspace: Option<Task<()>>,
 1354    _serialize_workspace_task: Option<Task<()>>,
 1355    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1356    pane_history_timestamp: Arc<AtomicUsize>,
 1357    bounds: Bounds<Pixels>,
 1358    pub centered_layout: bool,
 1359    bounds_save_task_queued: Option<Task<()>>,
 1360    on_prompt_for_new_path: Option<PromptForNewPath>,
 1361    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1362    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1363    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1364    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1365    _items_serializer: Task<Result<()>>,
 1366    session_id: Option<String>,
 1367    scheduled_tasks: Vec<Task<()>>,
 1368    last_open_dock_positions: Vec<DockPosition>,
 1369    removing: bool,
 1370    open_in_dev_container: bool,
 1371    _dev_container_task: Option<Task<Result<()>>>,
 1372    _panels_task: Option<Task<Result<()>>>,
 1373    sidebar_focus_handle: Option<FocusHandle>,
 1374    multi_workspace: Option<WeakEntity<MultiWorkspace>>,
 1375}
 1376
 1377impl EventEmitter<Event> for Workspace {}
 1378
 1379#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1380pub struct ViewId {
 1381    pub creator: CollaboratorId,
 1382    pub id: u64,
 1383}
 1384
 1385pub struct FollowerState {
 1386    center_pane: Entity<Pane>,
 1387    dock_pane: Option<Entity<Pane>>,
 1388    active_view_id: Option<ViewId>,
 1389    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1390}
 1391
 1392struct FollowerView {
 1393    view: Box<dyn FollowableItemHandle>,
 1394    location: Option<proto::PanelId>,
 1395}
 1396
 1397#[derive(Debug, Clone, Copy, PartialEq, Eq, Default)]
 1398pub enum OpenMode {
 1399    /// Open the workspace in a new window.
 1400    NewWindow,
 1401    /// Add to the window's multi workspace without activating it (used during deserialization).
 1402    Add,
 1403    /// Add to the window's multi workspace and activate it.
 1404    #[default]
 1405    Activate,
 1406}
 1407
 1408impl Workspace {
 1409    pub fn new(
 1410        workspace_id: Option<WorkspaceId>,
 1411        project: Entity<Project>,
 1412        app_state: Arc<AppState>,
 1413        window: &mut Window,
 1414        cx: &mut Context<Self>,
 1415    ) -> Self {
 1416        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1417            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1418                if let TrustedWorktreesEvent::Trusted(..) = e {
 1419                    // Do not persist auto trusted worktrees
 1420                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1421                        worktrees_store.update(cx, |worktrees_store, cx| {
 1422                            worktrees_store.schedule_serialization(
 1423                                cx,
 1424                                |new_trusted_worktrees, cx| {
 1425                                    let timeout =
 1426                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1427                                    let db = WorkspaceDb::global(cx);
 1428                                    cx.background_spawn(async move {
 1429                                        timeout.await;
 1430                                        db.save_trusted_worktrees(new_trusted_worktrees)
 1431                                            .await
 1432                                            .log_err();
 1433                                    })
 1434                                },
 1435                            )
 1436                        });
 1437                    }
 1438                }
 1439            })
 1440            .detach();
 1441
 1442            cx.observe_global::<SettingsStore>(|_, cx| {
 1443                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1444                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1445                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1446                            trusted_worktrees.auto_trust_all(cx);
 1447                        })
 1448                    }
 1449                }
 1450            })
 1451            .detach();
 1452        }
 1453
 1454        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1455            match event {
 1456                project::Event::RemoteIdChanged(_) => {
 1457                    this.update_window_title(window, cx);
 1458                }
 1459
 1460                project::Event::CollaboratorLeft(peer_id) => {
 1461                    this.collaborator_left(*peer_id, window, cx);
 1462                }
 1463
 1464                &project::Event::WorktreeRemoved(_) => {
 1465                    this.update_window_title(window, cx);
 1466                    this.serialize_workspace(window, cx);
 1467                    this.update_history(cx);
 1468                }
 1469
 1470                &project::Event::WorktreeAdded(id) => {
 1471                    this.update_window_title(window, cx);
 1472                    if this
 1473                        .project()
 1474                        .read(cx)
 1475                        .worktree_for_id(id, cx)
 1476                        .is_some_and(|wt| wt.read(cx).is_visible())
 1477                    {
 1478                        this.serialize_workspace(window, cx);
 1479                        this.update_history(cx);
 1480                    }
 1481                }
 1482                project::Event::WorktreeUpdatedEntries(..) => {
 1483                    this.update_window_title(window, cx);
 1484                    this.serialize_workspace(window, cx);
 1485                }
 1486
 1487                project::Event::DisconnectedFromHost => {
 1488                    this.update_window_edited(window, cx);
 1489                    let leaders_to_unfollow =
 1490                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1491                    for leader_id in leaders_to_unfollow {
 1492                        this.unfollow(leader_id, window, cx);
 1493                    }
 1494                }
 1495
 1496                project::Event::DisconnectedFromRemote {
 1497                    server_not_running: _,
 1498                } => {
 1499                    this.update_window_edited(window, cx);
 1500                }
 1501
 1502                project::Event::Closed => {
 1503                    window.remove_window();
 1504                }
 1505
 1506                project::Event::DeletedEntry(_, entry_id) => {
 1507                    for pane in this.panes.iter() {
 1508                        pane.update(cx, |pane, cx| {
 1509                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1510                        });
 1511                    }
 1512                }
 1513
 1514                project::Event::Toast {
 1515                    notification_id,
 1516                    message,
 1517                    link,
 1518                } => this.show_notification(
 1519                    NotificationId::named(notification_id.clone()),
 1520                    cx,
 1521                    |cx| {
 1522                        let mut notification = MessageNotification::new(message.clone(), cx);
 1523                        if let Some(link) = link {
 1524                            notification = notification
 1525                                .more_info_message(link.label)
 1526                                .more_info_url(link.url);
 1527                        }
 1528
 1529                        cx.new(|_| notification)
 1530                    },
 1531                ),
 1532
 1533                project::Event::HideToast { notification_id } => {
 1534                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1535                }
 1536
 1537                project::Event::LanguageServerPrompt(request) => {
 1538                    struct LanguageServerPrompt;
 1539
 1540                    this.show_notification(
 1541                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1542                        cx,
 1543                        |cx| {
 1544                            cx.new(|cx| {
 1545                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1546                            })
 1547                        },
 1548                    );
 1549                }
 1550
 1551                project::Event::AgentLocationChanged => {
 1552                    this.handle_agent_location_changed(window, cx)
 1553                }
 1554
 1555                _ => {}
 1556            }
 1557            cx.notify()
 1558        })
 1559        .detach();
 1560
 1561        cx.subscribe_in(
 1562            &project.read(cx).breakpoint_store(),
 1563            window,
 1564            |workspace, _, event, window, cx| match event {
 1565                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1566                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1567                    workspace.serialize_workspace(window, cx);
 1568                }
 1569                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1570            },
 1571        )
 1572        .detach();
 1573        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1574            cx.subscribe_in(
 1575                &toolchain_store,
 1576                window,
 1577                |workspace, _, event, window, cx| match event {
 1578                    ToolchainStoreEvent::CustomToolchainsModified => {
 1579                        workspace.serialize_workspace(window, cx);
 1580                    }
 1581                    _ => {}
 1582                },
 1583            )
 1584            .detach();
 1585        }
 1586
 1587        cx.on_focus_lost(window, |this, window, cx| {
 1588            let focus_handle = this.focus_handle(cx);
 1589            window.focus(&focus_handle, cx);
 1590        })
 1591        .detach();
 1592
 1593        let weak_handle = cx.entity().downgrade();
 1594        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1595
 1596        let center_pane = cx.new(|cx| {
 1597            let mut center_pane = Pane::new(
 1598                weak_handle.clone(),
 1599                project.clone(),
 1600                pane_history_timestamp.clone(),
 1601                None,
 1602                NewFile.boxed_clone(),
 1603                true,
 1604                window,
 1605                cx,
 1606            );
 1607            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1608            center_pane.set_should_display_welcome_page(true);
 1609            center_pane
 1610        });
 1611        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1612            .detach();
 1613
 1614        window.focus(&center_pane.focus_handle(cx), cx);
 1615
 1616        cx.emit(Event::PaneAdded(center_pane.clone()));
 1617
 1618        let any_window_handle = window.window_handle();
 1619        app_state.workspace_store.update(cx, |store, _| {
 1620            store
 1621                .workspaces
 1622                .insert((any_window_handle, weak_handle.clone()));
 1623        });
 1624
 1625        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1626        let mut connection_status = app_state.client.status();
 1627        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1628            current_user.next().await;
 1629            connection_status.next().await;
 1630            let mut stream =
 1631                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1632
 1633            while stream.recv().await.is_some() {
 1634                this.update(cx, |_, cx| cx.notify())?;
 1635            }
 1636            anyhow::Ok(())
 1637        });
 1638
 1639        // All leader updates are enqueued and then processed in a single task, so
 1640        // that each asynchronous operation can be run in order.
 1641        let (leader_updates_tx, mut leader_updates_rx) =
 1642            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1643        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1644            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1645                Self::process_leader_update(&this, leader_id, update, cx)
 1646                    .await
 1647                    .log_err();
 1648            }
 1649
 1650            Ok(())
 1651        });
 1652
 1653        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1654        let modal_layer = cx.new(|_| ModalLayer::new());
 1655        let toast_layer = cx.new(|_| ToastLayer::new());
 1656        cx.subscribe(
 1657            &modal_layer,
 1658            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1659                cx.emit(Event::ModalOpened);
 1660            },
 1661        )
 1662        .detach();
 1663
 1664        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1665        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1666        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1667        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1668        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1669        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1670        let multi_workspace = window
 1671            .root::<MultiWorkspace>()
 1672            .flatten()
 1673            .map(|mw| mw.downgrade());
 1674        let status_bar = cx.new(|cx| {
 1675            let mut status_bar =
 1676                StatusBar::new(&center_pane.clone(), multi_workspace.clone(), window, cx);
 1677            status_bar.add_left_item(left_dock_buttons, window, cx);
 1678            status_bar.add_right_item(right_dock_buttons, window, cx);
 1679            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1680            status_bar
 1681        });
 1682
 1683        let session_id = app_state.session.read(cx).id().to_owned();
 1684
 1685        let mut active_call = None;
 1686        if let Some(call) = GlobalAnyActiveCall::try_global(cx).cloned() {
 1687            let subscriptions =
 1688                vec![
 1689                    call.0
 1690                        .subscribe(window, cx, Box::new(Self::on_active_call_event)),
 1691                ];
 1692            active_call = Some((call, subscriptions));
 1693        }
 1694
 1695        let (serializable_items_tx, serializable_items_rx) =
 1696            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1697        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1698            Self::serialize_items(&this, serializable_items_rx, cx).await
 1699        });
 1700
 1701        let subscriptions = vec![
 1702            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1703            cx.observe_window_bounds(window, move |this, window, cx| {
 1704                if this.bounds_save_task_queued.is_some() {
 1705                    return;
 1706                }
 1707                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1708                    cx.background_executor()
 1709                        .timer(Duration::from_millis(100))
 1710                        .await;
 1711                    this.update_in(cx, |this, window, cx| {
 1712                        this.save_window_bounds(window, cx).detach();
 1713                        this.bounds_save_task_queued.take();
 1714                    })
 1715                    .ok();
 1716                }));
 1717                cx.notify();
 1718            }),
 1719            cx.observe_window_appearance(window, |_, window, cx| {
 1720                let window_appearance = window.appearance();
 1721
 1722                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1723
 1724                theme_settings::reload_theme(cx);
 1725                theme_settings::reload_icon_theme(cx);
 1726            }),
 1727            cx.on_release({
 1728                let weak_handle = weak_handle.clone();
 1729                move |this, cx| {
 1730                    this.app_state.workspace_store.update(cx, move |store, _| {
 1731                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1732                    })
 1733                }
 1734            }),
 1735        ];
 1736
 1737        cx.defer_in(window, move |this, window, cx| {
 1738            this.update_window_title(window, cx);
 1739            this.show_initial_notifications(cx);
 1740        });
 1741
 1742        let mut center = PaneGroup::new(center_pane.clone());
 1743        center.set_is_center(true);
 1744        center.mark_positions(cx);
 1745
 1746        Workspace {
 1747            weak_self: weak_handle.clone(),
 1748            zoomed: None,
 1749            zoomed_position: None,
 1750            previous_dock_drag_coordinates: None,
 1751            center,
 1752            panes: vec![center_pane.clone()],
 1753            panes_by_item: Default::default(),
 1754            active_pane: center_pane.clone(),
 1755            last_active_center_pane: Some(center_pane.downgrade()),
 1756            last_active_view_id: None,
 1757            status_bar,
 1758            modal_layer,
 1759            toast_layer,
 1760            titlebar_item: None,
 1761            notifications: Notifications::default(),
 1762            suppressed_notifications: HashSet::default(),
 1763            left_dock,
 1764            bottom_dock,
 1765            right_dock,
 1766            _panels_task: None,
 1767            project: project.clone(),
 1768            follower_states: Default::default(),
 1769            last_leaders_by_pane: Default::default(),
 1770            dispatching_keystrokes: Default::default(),
 1771            window_edited: false,
 1772            last_window_title: None,
 1773            dirty_items: Default::default(),
 1774            active_call,
 1775            database_id: workspace_id,
 1776            app_state,
 1777            _observe_current_user,
 1778            _apply_leader_updates,
 1779            _schedule_serialize_workspace: None,
 1780            _serialize_workspace_task: None,
 1781            _schedule_serialize_ssh_paths: None,
 1782            leader_updates_tx,
 1783            _subscriptions: subscriptions,
 1784            pane_history_timestamp,
 1785            workspace_actions: Default::default(),
 1786            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1787            bounds: Default::default(),
 1788            centered_layout: false,
 1789            bounds_save_task_queued: None,
 1790            on_prompt_for_new_path: None,
 1791            on_prompt_for_open_path: None,
 1792            terminal_provider: None,
 1793            debugger_provider: None,
 1794            serializable_items_tx,
 1795            _items_serializer,
 1796            session_id: Some(session_id),
 1797
 1798            scheduled_tasks: Vec::new(),
 1799            last_open_dock_positions: Vec::new(),
 1800            removing: false,
 1801            sidebar_focus_handle: None,
 1802            multi_workspace,
 1803            open_in_dev_container: false,
 1804            _dev_container_task: None,
 1805        }
 1806    }
 1807
 1808    pub fn new_local(
 1809        abs_paths: Vec<PathBuf>,
 1810        app_state: Arc<AppState>,
 1811        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1812        env: Option<HashMap<String, String>>,
 1813        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1814        open_mode: OpenMode,
 1815        cx: &mut App,
 1816    ) -> Task<anyhow::Result<OpenResult>> {
 1817        let project_handle = Project::local(
 1818            app_state.client.clone(),
 1819            app_state.node_runtime.clone(),
 1820            app_state.user_store.clone(),
 1821            app_state.languages.clone(),
 1822            app_state.fs.clone(),
 1823            env,
 1824            Default::default(),
 1825            cx,
 1826        );
 1827
 1828        let db = WorkspaceDb::global(cx);
 1829        let kvp = db::kvp::KeyValueStore::global(cx);
 1830        cx.spawn(async move |cx| {
 1831            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1832            for path in abs_paths.into_iter() {
 1833                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1834                    paths_to_open.push(canonical)
 1835                } else {
 1836                    paths_to_open.push(path)
 1837                }
 1838            }
 1839
 1840            let serialized_workspace = db.workspace_for_roots(paths_to_open.as_slice());
 1841
 1842            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1843                paths_to_open = paths.ordered_paths().cloned().collect();
 1844                if !paths.is_lexicographically_ordered() {
 1845                    project_handle.update(cx, |project, cx| {
 1846                        project.set_worktrees_reordered(true, cx);
 1847                    });
 1848                }
 1849            }
 1850
 1851            // Get project paths for all of the abs_paths
 1852            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1853                Vec::with_capacity(paths_to_open.len());
 1854
 1855            for path in paths_to_open.into_iter() {
 1856                if let Some((_, project_entry)) = cx
 1857                    .update(|cx| {
 1858                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1859                    })
 1860                    .await
 1861                    .log_err()
 1862                {
 1863                    project_paths.push((path, Some(project_entry)));
 1864                } else {
 1865                    project_paths.push((path, None));
 1866                }
 1867            }
 1868
 1869            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1870                serialized_workspace.id
 1871            } else {
 1872                db.next_id().await.unwrap_or_else(|_| Default::default())
 1873            };
 1874
 1875            let toolchains = db.toolchains(workspace_id).await?;
 1876
 1877            for (toolchain, worktree_path, path) in toolchains {
 1878                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1879                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1880                    this.find_worktree(&worktree_path, cx)
 1881                        .and_then(|(worktree, rel_path)| {
 1882                            if rel_path.is_empty() {
 1883                                Some(worktree.read(cx).id())
 1884                            } else {
 1885                                None
 1886                            }
 1887                        })
 1888                }) else {
 1889                    // We did not find a worktree with a given path, but that's whatever.
 1890                    continue;
 1891                };
 1892                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1893                    continue;
 1894                }
 1895
 1896                project_handle
 1897                    .update(cx, |this, cx| {
 1898                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1899                    })
 1900                    .await;
 1901            }
 1902            if let Some(workspace) = serialized_workspace.as_ref() {
 1903                project_handle.update(cx, |this, cx| {
 1904                    for (scope, toolchains) in &workspace.user_toolchains {
 1905                        for toolchain in toolchains {
 1906                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1907                        }
 1908                    }
 1909                });
 1910            }
 1911
 1912            let window_to_replace = match open_mode {
 1913                OpenMode::NewWindow => None,
 1914                _ => requesting_window,
 1915            };
 1916
 1917            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1918                if let Some(window) = window_to_replace {
 1919                    let centered_layout = serialized_workspace
 1920                        .as_ref()
 1921                        .map(|w| w.centered_layout)
 1922                        .unwrap_or(false);
 1923
 1924                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1925                        let workspace = cx.new(|cx| {
 1926                            let mut workspace = Workspace::new(
 1927                                Some(workspace_id),
 1928                                project_handle.clone(),
 1929                                app_state.clone(),
 1930                                window,
 1931                                cx,
 1932                            );
 1933
 1934                            workspace.centered_layout = centered_layout;
 1935
 1936                            // Call init callback to add items before window renders
 1937                            if let Some(init) = init {
 1938                                init(&mut workspace, window, cx);
 1939                            }
 1940
 1941                            workspace
 1942                        });
 1943                        match open_mode {
 1944                            OpenMode::Activate => {
 1945                                multi_workspace.activate(workspace.clone(), window, cx);
 1946                            }
 1947                            OpenMode::Add => {
 1948                                multi_workspace.add(workspace.clone(), &*window, cx);
 1949                            }
 1950                            OpenMode::NewWindow => {
 1951                                unreachable!()
 1952                            }
 1953                        }
 1954                        workspace
 1955                    })?;
 1956                    (window, workspace)
 1957                } else {
 1958                    let window_bounds_override = window_bounds_env_override();
 1959
 1960                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1961                        (Some(WindowBounds::Windowed(bounds)), None)
 1962                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1963                        && let Some(display) = workspace.display
 1964                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1965                    {
 1966                        // Reopening an existing workspace - restore its saved bounds
 1967                        (Some(bounds.0), Some(display))
 1968                    } else if let Some((display, bounds)) =
 1969                        persistence::read_default_window_bounds(&kvp)
 1970                    {
 1971                        // New or empty workspace - use the last known window bounds
 1972                        (Some(bounds), Some(display))
 1973                    } else {
 1974                        // New window - let GPUI's default_bounds() handle cascading
 1975                        (None, None)
 1976                    };
 1977
 1978                    // Use the serialized workspace to construct the new window
 1979                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1980                    options.window_bounds = window_bounds;
 1981                    let centered_layout = serialized_workspace
 1982                        .as_ref()
 1983                        .map(|w| w.centered_layout)
 1984                        .unwrap_or(false);
 1985                    let window = cx.open_window(options, {
 1986                        let app_state = app_state.clone();
 1987                        let project_handle = project_handle.clone();
 1988                        move |window, cx| {
 1989                            let workspace = cx.new(|cx| {
 1990                                let mut workspace = Workspace::new(
 1991                                    Some(workspace_id),
 1992                                    project_handle,
 1993                                    app_state,
 1994                                    window,
 1995                                    cx,
 1996                                );
 1997                                workspace.centered_layout = centered_layout;
 1998
 1999                                // Call init callback to add items before window renders
 2000                                if let Some(init) = init {
 2001                                    init(&mut workspace, window, cx);
 2002                                }
 2003
 2004                                workspace
 2005                            });
 2006                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 2007                        }
 2008                    })?;
 2009                    let workspace =
 2010                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 2011                            multi_workspace.workspace().clone()
 2012                        })?;
 2013                    (window, workspace)
 2014                };
 2015
 2016            notify_if_database_failed(window, cx);
 2017            // Check if this is an empty workspace (no paths to open)
 2018            // An empty workspace is one where project_paths is empty
 2019            let is_empty_workspace = project_paths.is_empty();
 2020            // Check if serialized workspace has paths before it's moved
 2021            let serialized_workspace_has_paths = serialized_workspace
 2022                .as_ref()
 2023                .map(|ws| !ws.paths.is_empty())
 2024                .unwrap_or(false);
 2025
 2026            let opened_items = window
 2027                .update(cx, |_, window, cx| {
 2028                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 2029                        open_items(serialized_workspace, project_paths, window, cx)
 2030                    })
 2031                })?
 2032                .await
 2033                .unwrap_or_default();
 2034
 2035            // Restore default dock state for empty workspaces
 2036            // Only restore if:
 2037            // 1. This is an empty workspace (no paths), AND
 2038            // 2. The serialized workspace either doesn't exist or has no paths
 2039            if is_empty_workspace && !serialized_workspace_has_paths {
 2040                if let Some(default_docks) = persistence::read_default_dock_state(&kvp) {
 2041                    window
 2042                        .update(cx, |_, window, cx| {
 2043                            workspace.update(cx, |workspace, cx| {
 2044                                for (dock, serialized_dock) in [
 2045                                    (&workspace.right_dock, &default_docks.right),
 2046                                    (&workspace.left_dock, &default_docks.left),
 2047                                    (&workspace.bottom_dock, &default_docks.bottom),
 2048                                ] {
 2049                                    dock.update(cx, |dock, cx| {
 2050                                        dock.serialized_dock = Some(serialized_dock.clone());
 2051                                        dock.restore_state(window, cx);
 2052                                    });
 2053                                }
 2054                                cx.notify();
 2055                            });
 2056                        })
 2057                        .log_err();
 2058                }
 2059            }
 2060
 2061            window
 2062                .update(cx, |_, _window, cx| {
 2063                    workspace.update(cx, |this: &mut Workspace, cx| {
 2064                        this.update_history(cx);
 2065                    });
 2066                })
 2067                .log_err();
 2068            Ok(OpenResult {
 2069                window,
 2070                workspace,
 2071                opened_items,
 2072            })
 2073        })
 2074    }
 2075
 2076    pub fn project_group_key(&self, cx: &App) -> ProjectGroupKey {
 2077        self.project.read(cx).project_group_key(cx)
 2078    }
 2079
 2080    pub fn weak_handle(&self) -> WeakEntity<Self> {
 2081        self.weak_self.clone()
 2082    }
 2083
 2084    pub fn left_dock(&self) -> &Entity<Dock> {
 2085        &self.left_dock
 2086    }
 2087
 2088    pub fn bottom_dock(&self) -> &Entity<Dock> {
 2089        &self.bottom_dock
 2090    }
 2091
 2092    pub fn set_bottom_dock_layout(
 2093        &mut self,
 2094        layout: BottomDockLayout,
 2095        window: &mut Window,
 2096        cx: &mut Context<Self>,
 2097    ) {
 2098        let fs = self.project().read(cx).fs();
 2099        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 2100            content.workspace.bottom_dock_layout = Some(layout);
 2101        });
 2102
 2103        cx.notify();
 2104        self.serialize_workspace(window, cx);
 2105    }
 2106
 2107    pub fn right_dock(&self) -> &Entity<Dock> {
 2108        &self.right_dock
 2109    }
 2110
 2111    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 2112        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 2113    }
 2114
 2115    pub fn capture_dock_state(&self, _window: &Window, cx: &App) -> DockStructure {
 2116        let left_dock = self.left_dock.read(cx);
 2117        let left_visible = left_dock.is_open();
 2118        let left_active_panel = left_dock
 2119            .active_panel()
 2120            .map(|panel| panel.persistent_name().to_string());
 2121        // `zoomed_position` is kept in sync with individual panel zoom state
 2122        // by the dock code in `Dock::new` and `Dock::add_panel`.
 2123        let left_dock_zoom = self.zoomed_position == Some(DockPosition::Left);
 2124
 2125        let right_dock = self.right_dock.read(cx);
 2126        let right_visible = right_dock.is_open();
 2127        let right_active_panel = right_dock
 2128            .active_panel()
 2129            .map(|panel| panel.persistent_name().to_string());
 2130        let right_dock_zoom = self.zoomed_position == Some(DockPosition::Right);
 2131
 2132        let bottom_dock = self.bottom_dock.read(cx);
 2133        let bottom_visible = bottom_dock.is_open();
 2134        let bottom_active_panel = bottom_dock
 2135            .active_panel()
 2136            .map(|panel| panel.persistent_name().to_string());
 2137        let bottom_dock_zoom = self.zoomed_position == Some(DockPosition::Bottom);
 2138
 2139        DockStructure {
 2140            left: DockData {
 2141                visible: left_visible,
 2142                active_panel: left_active_panel,
 2143                zoom: left_dock_zoom,
 2144            },
 2145            right: DockData {
 2146                visible: right_visible,
 2147                active_panel: right_active_panel,
 2148                zoom: right_dock_zoom,
 2149            },
 2150            bottom: DockData {
 2151                visible: bottom_visible,
 2152                active_panel: bottom_active_panel,
 2153                zoom: bottom_dock_zoom,
 2154            },
 2155        }
 2156    }
 2157
 2158    pub fn set_dock_structure(
 2159        &self,
 2160        docks: DockStructure,
 2161        window: &mut Window,
 2162        cx: &mut Context<Self>,
 2163    ) {
 2164        for (dock, data) in [
 2165            (&self.left_dock, docks.left),
 2166            (&self.bottom_dock, docks.bottom),
 2167            (&self.right_dock, docks.right),
 2168        ] {
 2169            dock.update(cx, |dock, cx| {
 2170                dock.serialized_dock = Some(data);
 2171                dock.restore_state(window, cx);
 2172            });
 2173        }
 2174    }
 2175
 2176    pub fn open_item_abs_paths(&self, cx: &App) -> Vec<PathBuf> {
 2177        self.items(cx)
 2178            .filter_map(|item| {
 2179                let project_path = item.project_path(cx)?;
 2180                self.project.read(cx).absolute_path(&project_path, cx)
 2181            })
 2182            .collect()
 2183    }
 2184
 2185    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 2186        match position {
 2187            DockPosition::Left => &self.left_dock,
 2188            DockPosition::Bottom => &self.bottom_dock,
 2189            DockPosition::Right => &self.right_dock,
 2190        }
 2191    }
 2192
 2193    pub fn agent_panel_position(&self, cx: &App) -> Option<DockPosition> {
 2194        self.all_docks().into_iter().find_map(|dock| {
 2195            let dock = dock.read(cx);
 2196            dock.has_agent_panel(cx).then_some(dock.position())
 2197        })
 2198    }
 2199
 2200    pub fn panel_size_state<T: Panel>(&self, cx: &App) -> Option<dock::PanelSizeState> {
 2201        self.all_docks().into_iter().find_map(|dock| {
 2202            let dock = dock.read(cx);
 2203            let panel = dock.panel::<T>()?;
 2204            dock.stored_panel_size_state(&panel)
 2205        })
 2206    }
 2207
 2208    pub fn persisted_panel_size_state(
 2209        &self,
 2210        panel_key: &'static str,
 2211        cx: &App,
 2212    ) -> Option<dock::PanelSizeState> {
 2213        dock::Dock::load_persisted_size_state(self, panel_key, cx)
 2214    }
 2215
 2216    pub fn persist_panel_size_state(
 2217        &self,
 2218        panel_key: &str,
 2219        size_state: dock::PanelSizeState,
 2220        cx: &mut App,
 2221    ) {
 2222        let Some(workspace_id) = self
 2223            .database_id()
 2224            .map(|id| i64::from(id).to_string())
 2225            .or(self.session_id())
 2226        else {
 2227            return;
 2228        };
 2229
 2230        let kvp = db::kvp::KeyValueStore::global(cx);
 2231        let panel_key = panel_key.to_string();
 2232        cx.background_spawn(async move {
 2233            let scope = kvp.scoped(dock::PANEL_SIZE_STATE_KEY);
 2234            scope
 2235                .write(
 2236                    format!("{workspace_id}:{panel_key}"),
 2237                    serde_json::to_string(&size_state)?,
 2238                )
 2239                .await
 2240        })
 2241        .detach_and_log_err(cx);
 2242    }
 2243
 2244    pub fn set_panel_size_state<T: Panel>(
 2245        &mut self,
 2246        size_state: dock::PanelSizeState,
 2247        window: &mut Window,
 2248        cx: &mut Context<Self>,
 2249    ) -> bool {
 2250        let Some(panel) = self.panel::<T>(cx) else {
 2251            return false;
 2252        };
 2253
 2254        let dock = self.dock_at_position(panel.position(window, cx));
 2255        let did_set = dock.update(cx, |dock, cx| {
 2256            dock.set_panel_size_state(&panel, size_state, cx)
 2257        });
 2258
 2259        if did_set {
 2260            self.persist_panel_size_state(T::panel_key(), size_state, cx);
 2261        }
 2262
 2263        did_set
 2264    }
 2265
 2266    pub fn toggle_dock_panel_flexible_size(
 2267        &self,
 2268        dock: &Entity<Dock>,
 2269        panel: &dyn PanelHandle,
 2270        window: &mut Window,
 2271        cx: &mut App,
 2272    ) {
 2273        let position = dock.read(cx).position();
 2274        let current_size = self.dock_size(&dock.read(cx), window, cx);
 2275        let current_flex =
 2276            current_size.and_then(|size| self.dock_flex_for_size(position, size, window, cx));
 2277        dock.update(cx, |dock, cx| {
 2278            dock.toggle_panel_flexible_size(panel, current_size, current_flex, window, cx);
 2279        });
 2280    }
 2281
 2282    fn dock_size(&self, dock: &Dock, window: &Window, cx: &App) -> Option<Pixels> {
 2283        let panel = dock.active_panel()?;
 2284        let size_state = dock
 2285            .stored_panel_size_state(panel.as_ref())
 2286            .unwrap_or_default();
 2287        let position = dock.position();
 2288
 2289        let use_flex = panel.has_flexible_size(window, cx);
 2290
 2291        if position.axis() == Axis::Horizontal
 2292            && use_flex
 2293            && let Some(flex) = size_state.flex.or_else(|| self.default_dock_flex(position))
 2294        {
 2295            let workspace_width = self.bounds.size.width;
 2296            if workspace_width <= Pixels::ZERO {
 2297                return None;
 2298            }
 2299            let flex = flex.max(0.001);
 2300            let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2301            if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2302                // Both docks are flex items sharing the full workspace width.
 2303                let total_flex = flex + 1.0 + opposite_flex;
 2304                return Some((flex / total_flex * workspace_width).max(RESIZE_HANDLE_SIZE));
 2305            } else {
 2306                // Opposite dock is fixed-width; flex items share (W - fixed).
 2307                let opposite_fixed = opposite
 2308                    .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2309                    .unwrap_or_default();
 2310                let available = (workspace_width - opposite_fixed).max(RESIZE_HANDLE_SIZE);
 2311                return Some((flex / (flex + 1.0) * available).max(RESIZE_HANDLE_SIZE));
 2312            }
 2313        }
 2314
 2315        Some(
 2316            size_state
 2317                .size
 2318                .unwrap_or_else(|| panel.default_size(window, cx)),
 2319        )
 2320    }
 2321
 2322    pub fn dock_flex_for_size(
 2323        &self,
 2324        position: DockPosition,
 2325        size: Pixels,
 2326        window: &Window,
 2327        cx: &App,
 2328    ) -> Option<f32> {
 2329        if position.axis() != Axis::Horizontal {
 2330            return None;
 2331        }
 2332
 2333        let workspace_width = self.bounds.size.width;
 2334        if workspace_width <= Pixels::ZERO {
 2335            return None;
 2336        }
 2337
 2338        let opposite = self.opposite_dock_panel_and_size_state(position, window, cx);
 2339        if let Some(opposite_flex) = opposite.as_ref().and_then(|(_, s)| s.flex) {
 2340            let size = size.clamp(px(0.), workspace_width - px(1.));
 2341            Some((size * (1.0 + opposite_flex) / (workspace_width - size)).max(0.0))
 2342        } else {
 2343            let opposite_width = opposite
 2344                .map(|(panel, s)| s.size.unwrap_or_else(|| panel.default_size(window, cx)))
 2345                .unwrap_or_default();
 2346            let available = (workspace_width - opposite_width).max(RESIZE_HANDLE_SIZE);
 2347            let remaining = (available - size).max(px(1.));
 2348            Some((size / remaining).max(0.0))
 2349        }
 2350    }
 2351
 2352    fn opposite_dock_panel_and_size_state(
 2353        &self,
 2354        position: DockPosition,
 2355        window: &Window,
 2356        cx: &App,
 2357    ) -> Option<(Arc<dyn PanelHandle>, PanelSizeState)> {
 2358        let opposite_position = match position {
 2359            DockPosition::Left => DockPosition::Right,
 2360            DockPosition::Right => DockPosition::Left,
 2361            DockPosition::Bottom => return None,
 2362        };
 2363
 2364        let opposite_dock = self.dock_at_position(opposite_position).read(cx);
 2365        let panel = opposite_dock.visible_panel()?;
 2366        let mut size_state = opposite_dock
 2367            .stored_panel_size_state(panel.as_ref())
 2368            .unwrap_or_default();
 2369        if size_state.flex.is_none() && panel.has_flexible_size(window, cx) {
 2370            size_state.flex = self.default_dock_flex(opposite_position);
 2371        }
 2372        Some((panel.clone(), size_state))
 2373    }
 2374
 2375    pub fn default_dock_flex(&self, position: DockPosition) -> Option<f32> {
 2376        if position.axis() != Axis::Horizontal {
 2377            return None;
 2378        }
 2379
 2380        let pane = self.last_active_center_pane.clone()?.upgrade()?;
 2381        Some(self.center.width_fraction_for_pane(&pane).unwrap_or(1.0))
 2382    }
 2383
 2384    pub fn is_edited(&self) -> bool {
 2385        self.window_edited
 2386    }
 2387
 2388    pub fn add_panel<T: Panel>(
 2389        &mut self,
 2390        panel: Entity<T>,
 2391        window: &mut Window,
 2392        cx: &mut Context<Self>,
 2393    ) {
 2394        let focus_handle = panel.panel_focus_handle(cx);
 2395        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2396            .detach();
 2397
 2398        let dock_position = panel.position(window, cx);
 2399        let dock = self.dock_at_position(dock_position);
 2400        let any_panel = panel.to_any();
 2401        let persisted_size_state =
 2402            self.persisted_panel_size_state(T::panel_key(), cx)
 2403                .or_else(|| {
 2404                    load_legacy_panel_size(T::panel_key(), dock_position, self, cx).map(|size| {
 2405                        let state = dock::PanelSizeState {
 2406                            size: Some(size),
 2407                            flex: None,
 2408                        };
 2409                        self.persist_panel_size_state(T::panel_key(), state, cx);
 2410                        state
 2411                    })
 2412                });
 2413
 2414        dock.update(cx, |dock, cx| {
 2415            let index = dock.add_panel(panel.clone(), self.weak_self.clone(), window, cx);
 2416            if let Some(size_state) = persisted_size_state {
 2417                dock.set_panel_size_state(&panel, size_state, cx);
 2418            }
 2419            index
 2420        });
 2421
 2422        cx.emit(Event::PanelAdded(any_panel));
 2423    }
 2424
 2425    pub fn remove_panel<T: Panel>(
 2426        &mut self,
 2427        panel: &Entity<T>,
 2428        window: &mut Window,
 2429        cx: &mut Context<Self>,
 2430    ) {
 2431        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2432            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2433        }
 2434    }
 2435
 2436    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2437        &self.status_bar
 2438    }
 2439
 2440    pub fn set_sidebar_focus_handle(&mut self, handle: Option<FocusHandle>) {
 2441        self.sidebar_focus_handle = handle;
 2442    }
 2443
 2444    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2445        StatusBarSettings::get_global(cx).show
 2446    }
 2447
 2448    pub fn multi_workspace(&self) -> Option<&WeakEntity<MultiWorkspace>> {
 2449        self.multi_workspace.as_ref()
 2450    }
 2451
 2452    pub fn set_multi_workspace(
 2453        &mut self,
 2454        multi_workspace: WeakEntity<MultiWorkspace>,
 2455        cx: &mut App,
 2456    ) {
 2457        self.status_bar.update(cx, |status_bar, cx| {
 2458            status_bar.set_multi_workspace(multi_workspace.clone(), cx);
 2459        });
 2460        self.multi_workspace = Some(multi_workspace);
 2461    }
 2462
 2463    pub fn app_state(&self) -> &Arc<AppState> {
 2464        &self.app_state
 2465    }
 2466
 2467    pub fn set_panels_task(&mut self, task: Task<Result<()>>) {
 2468        self._panels_task = Some(task);
 2469    }
 2470
 2471    pub fn take_panels_task(&mut self) -> Option<Task<Result<()>>> {
 2472        self._panels_task.take()
 2473    }
 2474
 2475    pub fn user_store(&self) -> &Entity<UserStore> {
 2476        &self.app_state.user_store
 2477    }
 2478
 2479    pub fn project(&self) -> &Entity<Project> {
 2480        &self.project
 2481    }
 2482
 2483    pub fn path_style(&self, cx: &App) -> PathStyle {
 2484        self.project.read(cx).path_style(cx)
 2485    }
 2486
 2487    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2488        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2489
 2490        for pane_handle in &self.panes {
 2491            let pane = pane_handle.read(cx);
 2492
 2493            for entry in pane.activation_history() {
 2494                history.insert(
 2495                    entry.entity_id,
 2496                    history
 2497                        .get(&entry.entity_id)
 2498                        .cloned()
 2499                        .unwrap_or(0)
 2500                        .max(entry.timestamp),
 2501                );
 2502            }
 2503        }
 2504
 2505        history
 2506    }
 2507
 2508    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2509        let mut recent_item: Option<Entity<T>> = None;
 2510        let mut recent_timestamp = 0;
 2511        for pane_handle in &self.panes {
 2512            let pane = pane_handle.read(cx);
 2513            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2514                pane.items().map(|item| (item.item_id(), item)).collect();
 2515            for entry in pane.activation_history() {
 2516                if entry.timestamp > recent_timestamp
 2517                    && let Some(&item) = item_map.get(&entry.entity_id)
 2518                    && let Some(typed_item) = item.act_as::<T>(cx)
 2519                {
 2520                    recent_timestamp = entry.timestamp;
 2521                    recent_item = Some(typed_item);
 2522                }
 2523            }
 2524        }
 2525        recent_item
 2526    }
 2527
 2528    pub fn recent_navigation_history_iter(
 2529        &self,
 2530        cx: &App,
 2531    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2532        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2533        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2534
 2535        for pane in &self.panes {
 2536            let pane = pane.read(cx);
 2537
 2538            pane.nav_history()
 2539                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2540                    if let Some(fs_path) = &fs_path {
 2541                        abs_paths_opened
 2542                            .entry(fs_path.clone())
 2543                            .or_default()
 2544                            .insert(project_path.clone());
 2545                    }
 2546                    let timestamp = entry.timestamp;
 2547                    match history.entry(project_path) {
 2548                        hash_map::Entry::Occupied(mut entry) => {
 2549                            let (_, old_timestamp) = entry.get();
 2550                            if &timestamp > old_timestamp {
 2551                                entry.insert((fs_path, timestamp));
 2552                            }
 2553                        }
 2554                        hash_map::Entry::Vacant(entry) => {
 2555                            entry.insert((fs_path, timestamp));
 2556                        }
 2557                    }
 2558                });
 2559
 2560            if let Some(item) = pane.active_item()
 2561                && let Some(project_path) = item.project_path(cx)
 2562            {
 2563                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2564
 2565                if let Some(fs_path) = &fs_path {
 2566                    abs_paths_opened
 2567                        .entry(fs_path.clone())
 2568                        .or_default()
 2569                        .insert(project_path.clone());
 2570                }
 2571
 2572                history.insert(project_path, (fs_path, std::usize::MAX));
 2573            }
 2574        }
 2575
 2576        history
 2577            .into_iter()
 2578            .sorted_by_key(|(_, (_, order))| *order)
 2579            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2580            .rev()
 2581            .filter(move |(history_path, abs_path)| {
 2582                let latest_project_path_opened = abs_path
 2583                    .as_ref()
 2584                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2585                    .and_then(|project_paths| {
 2586                        project_paths
 2587                            .iter()
 2588                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2589                    });
 2590
 2591                latest_project_path_opened.is_none_or(|path| path == history_path)
 2592            })
 2593    }
 2594
 2595    pub fn recent_navigation_history(
 2596        &self,
 2597        limit: Option<usize>,
 2598        cx: &App,
 2599    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2600        self.recent_navigation_history_iter(cx)
 2601            .take(limit.unwrap_or(usize::MAX))
 2602            .collect()
 2603    }
 2604
 2605    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2606        for pane in &self.panes {
 2607            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2608        }
 2609    }
 2610
 2611    fn navigate_history(
 2612        &mut self,
 2613        pane: WeakEntity<Pane>,
 2614        mode: NavigationMode,
 2615        window: &mut Window,
 2616        cx: &mut Context<Workspace>,
 2617    ) -> Task<Result<()>> {
 2618        self.navigate_history_impl(
 2619            pane,
 2620            mode,
 2621            window,
 2622            &mut |history, cx| history.pop(mode, cx),
 2623            cx,
 2624        )
 2625    }
 2626
 2627    fn navigate_tag_history(
 2628        &mut self,
 2629        pane: WeakEntity<Pane>,
 2630        mode: TagNavigationMode,
 2631        window: &mut Window,
 2632        cx: &mut Context<Workspace>,
 2633    ) -> Task<Result<()>> {
 2634        self.navigate_history_impl(
 2635            pane,
 2636            NavigationMode::Normal,
 2637            window,
 2638            &mut |history, _cx| history.pop_tag(mode),
 2639            cx,
 2640        )
 2641    }
 2642
 2643    fn navigate_history_impl(
 2644        &mut self,
 2645        pane: WeakEntity<Pane>,
 2646        mode: NavigationMode,
 2647        window: &mut Window,
 2648        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2649        cx: &mut Context<Workspace>,
 2650    ) -> Task<Result<()>> {
 2651        let to_load = if let Some(pane) = pane.upgrade() {
 2652            pane.update(cx, |pane, cx| {
 2653                window.focus(&pane.focus_handle(cx), cx);
 2654                loop {
 2655                    // Retrieve the weak item handle from the history.
 2656                    let entry = cb(pane.nav_history_mut(), cx)?;
 2657
 2658                    // If the item is still present in this pane, then activate it.
 2659                    if let Some(index) = entry
 2660                        .item
 2661                        .upgrade()
 2662                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2663                    {
 2664                        let prev_active_item_index = pane.active_item_index();
 2665                        pane.nav_history_mut().set_mode(mode);
 2666                        pane.activate_item(index, true, true, window, cx);
 2667                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2668
 2669                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2670                        if let Some(data) = entry.data {
 2671                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2672                        }
 2673
 2674                        if navigated {
 2675                            break None;
 2676                        }
 2677                    } else {
 2678                        // If the item is no longer present in this pane, then retrieve its
 2679                        // path info in order to reopen it.
 2680                        break pane
 2681                            .nav_history()
 2682                            .path_for_item(entry.item.id())
 2683                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2684                    }
 2685                }
 2686            })
 2687        } else {
 2688            None
 2689        };
 2690
 2691        if let Some((project_path, abs_path, entry)) = to_load {
 2692            // If the item was no longer present, then load it again from its previous path, first try the local path
 2693            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2694
 2695            cx.spawn_in(window, async move  |workspace, cx| {
 2696                let open_by_project_path = open_by_project_path.await;
 2697                let mut navigated = false;
 2698                match open_by_project_path
 2699                    .with_context(|| format!("Navigating to {project_path:?}"))
 2700                {
 2701                    Ok((project_entry_id, build_item)) => {
 2702                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2703                            pane.nav_history_mut().set_mode(mode);
 2704                            pane.active_item().map(|p| p.item_id())
 2705                        })?;
 2706
 2707                        pane.update_in(cx, |pane, window, cx| {
 2708                            let item = pane.open_item(
 2709                                project_entry_id,
 2710                                project_path,
 2711                                true,
 2712                                entry.is_preview,
 2713                                true,
 2714                                None,
 2715                                window, cx,
 2716                                build_item,
 2717                            );
 2718                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2719                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2720                            if let Some(data) = entry.data {
 2721                                navigated |= item.navigate(data, window, cx);
 2722                            }
 2723                        })?;
 2724                    }
 2725                    Err(open_by_project_path_e) => {
 2726                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2727                        // and its worktree is now dropped
 2728                        if let Some(abs_path) = abs_path {
 2729                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2730                                pane.nav_history_mut().set_mode(mode);
 2731                                pane.active_item().map(|p| p.item_id())
 2732                            })?;
 2733                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2734                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2735                            })?;
 2736                            match open_by_abs_path
 2737                                .await
 2738                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2739                            {
 2740                                Ok(item) => {
 2741                                    pane.update_in(cx, |pane, window, cx| {
 2742                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2743                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2744                                        if let Some(data) = entry.data {
 2745                                            navigated |= item.navigate(data, window, cx);
 2746                                        }
 2747                                    })?;
 2748                                }
 2749                                Err(open_by_abs_path_e) => {
 2750                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2751                                }
 2752                            }
 2753                        }
 2754                    }
 2755                }
 2756
 2757                if !navigated {
 2758                    workspace
 2759                        .update_in(cx, |workspace, window, cx| {
 2760                            Self::navigate_history(workspace, pane, mode, window, cx)
 2761                        })?
 2762                        .await?;
 2763                }
 2764
 2765                Ok(())
 2766            })
 2767        } else {
 2768            Task::ready(Ok(()))
 2769        }
 2770    }
 2771
 2772    pub fn go_back(
 2773        &mut self,
 2774        pane: WeakEntity<Pane>,
 2775        window: &mut Window,
 2776        cx: &mut Context<Workspace>,
 2777    ) -> Task<Result<()>> {
 2778        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2779    }
 2780
 2781    pub fn go_forward(
 2782        &mut self,
 2783        pane: WeakEntity<Pane>,
 2784        window: &mut Window,
 2785        cx: &mut Context<Workspace>,
 2786    ) -> Task<Result<()>> {
 2787        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2788    }
 2789
 2790    pub fn reopen_closed_item(
 2791        &mut self,
 2792        window: &mut Window,
 2793        cx: &mut Context<Workspace>,
 2794    ) -> Task<Result<()>> {
 2795        self.navigate_history(
 2796            self.active_pane().downgrade(),
 2797            NavigationMode::ReopeningClosedItem,
 2798            window,
 2799            cx,
 2800        )
 2801    }
 2802
 2803    pub fn client(&self) -> &Arc<Client> {
 2804        &self.app_state.client
 2805    }
 2806
 2807    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2808        self.titlebar_item = Some(item);
 2809        cx.notify();
 2810    }
 2811
 2812    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2813        self.on_prompt_for_new_path = Some(prompt)
 2814    }
 2815
 2816    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2817        self.on_prompt_for_open_path = Some(prompt)
 2818    }
 2819
 2820    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2821        self.terminal_provider = Some(Box::new(provider));
 2822    }
 2823
 2824    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2825        self.debugger_provider = Some(Arc::new(provider));
 2826    }
 2827
 2828    pub fn set_open_in_dev_container(&mut self, value: bool) {
 2829        self.open_in_dev_container = value;
 2830    }
 2831
 2832    pub fn open_in_dev_container(&self) -> bool {
 2833        self.open_in_dev_container
 2834    }
 2835
 2836    pub fn set_dev_container_task(&mut self, task: Task<Result<()>>) {
 2837        self._dev_container_task = Some(task);
 2838    }
 2839
 2840    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2841        self.debugger_provider.clone()
 2842    }
 2843
 2844    pub fn prompt_for_open_path(
 2845        &mut self,
 2846        path_prompt_options: PathPromptOptions,
 2847        lister: DirectoryLister,
 2848        window: &mut Window,
 2849        cx: &mut Context<Self>,
 2850    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2851        // TODO: If `on_prompt_for_open_path` is set, we should always use it
 2852        // rather than gating on `use_system_path_prompts`. This would let tests
 2853        // inject a mock without also having to disable the setting.
 2854        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2855            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2856            let rx = prompt(self, lister, window, cx);
 2857            self.on_prompt_for_open_path = Some(prompt);
 2858            rx
 2859        } else {
 2860            let (tx, rx) = oneshot::channel();
 2861            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2862
 2863            cx.spawn_in(window, async move |workspace, cx| {
 2864                let Ok(result) = abs_path.await else {
 2865                    return Ok(());
 2866                };
 2867
 2868                match result {
 2869                    Ok(result) => {
 2870                        tx.send(result).ok();
 2871                    }
 2872                    Err(err) => {
 2873                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2874                            workspace.show_portal_error(err.to_string(), cx);
 2875                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2876                            let rx = prompt(workspace, lister, window, cx);
 2877                            workspace.on_prompt_for_open_path = Some(prompt);
 2878                            rx
 2879                        })?;
 2880                        if let Ok(path) = rx.await {
 2881                            tx.send(path).ok();
 2882                        }
 2883                    }
 2884                };
 2885                anyhow::Ok(())
 2886            })
 2887            .detach();
 2888
 2889            rx
 2890        }
 2891    }
 2892
 2893    pub fn prompt_for_new_path(
 2894        &mut self,
 2895        lister: DirectoryLister,
 2896        suggested_name: Option<String>,
 2897        window: &mut Window,
 2898        cx: &mut Context<Self>,
 2899    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2900        if self.project.read(cx).is_via_collab()
 2901            || self.project.read(cx).is_via_remote_server()
 2902            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2903        {
 2904            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2905            let rx = prompt(self, lister, suggested_name, window, cx);
 2906            self.on_prompt_for_new_path = Some(prompt);
 2907            return rx;
 2908        }
 2909
 2910        let (tx, rx) = oneshot::channel();
 2911        cx.spawn_in(window, async move |workspace, cx| {
 2912            let abs_path = workspace.update(cx, |workspace, cx| {
 2913                let relative_to = workspace
 2914                    .most_recent_active_path(cx)
 2915                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2916                    .or_else(|| {
 2917                        let project = workspace.project.read(cx);
 2918                        project.visible_worktrees(cx).find_map(|worktree| {
 2919                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2920                        })
 2921                    })
 2922                    .or_else(std::env::home_dir)
 2923                    .unwrap_or_else(|| PathBuf::from(""));
 2924                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2925            })?;
 2926            let abs_path = match abs_path.await? {
 2927                Ok(path) => path,
 2928                Err(err) => {
 2929                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2930                        workspace.show_portal_error(err.to_string(), cx);
 2931
 2932                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2933                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2934                        workspace.on_prompt_for_new_path = Some(prompt);
 2935                        rx
 2936                    })?;
 2937                    if let Ok(path) = rx.await {
 2938                        tx.send(path).ok();
 2939                    }
 2940                    return anyhow::Ok(());
 2941                }
 2942            };
 2943
 2944            tx.send(abs_path.map(|path| vec![path])).ok();
 2945            anyhow::Ok(())
 2946        })
 2947        .detach();
 2948
 2949        rx
 2950    }
 2951
 2952    pub fn titlebar_item(&self) -> Option<AnyView> {
 2953        self.titlebar_item.clone()
 2954    }
 2955
 2956    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2957    ///
 2958    /// If the given workspace has a local project, then it will be passed
 2959    /// to the callback. Otherwise, a new empty window will be created.
 2960    pub fn with_local_workspace<T, F>(
 2961        &mut self,
 2962        window: &mut Window,
 2963        cx: &mut Context<Self>,
 2964        callback: F,
 2965    ) -> Task<Result<T>>
 2966    where
 2967        T: 'static,
 2968        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2969    {
 2970        if self.project.read(cx).is_local() {
 2971            Task::ready(Ok(callback(self, window, cx)))
 2972        } else {
 2973            let env = self.project.read(cx).cli_environment(cx);
 2974            let task = Self::new_local(
 2975                Vec::new(),
 2976                self.app_state.clone(),
 2977                None,
 2978                env,
 2979                None,
 2980                OpenMode::Activate,
 2981                cx,
 2982            );
 2983            cx.spawn_in(window, async move |_vh, cx| {
 2984                let OpenResult {
 2985                    window: multi_workspace_window,
 2986                    ..
 2987                } = task.await?;
 2988                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2989                    let workspace = multi_workspace.workspace().clone();
 2990                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2991                })
 2992            })
 2993        }
 2994    }
 2995
 2996    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2997    ///
 2998    /// If the given workspace has a local project, then it will be passed
 2999    /// to the callback. Otherwise, a new empty window will be created.
 3000    pub fn with_local_or_wsl_workspace<T, F>(
 3001        &mut self,
 3002        window: &mut Window,
 3003        cx: &mut Context<Self>,
 3004        callback: F,
 3005    ) -> Task<Result<T>>
 3006    where
 3007        T: 'static,
 3008        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 3009    {
 3010        let project = self.project.read(cx);
 3011        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 3012            Task::ready(Ok(callback(self, window, cx)))
 3013        } else {
 3014            let env = self.project.read(cx).cli_environment(cx);
 3015            let task = Self::new_local(
 3016                Vec::new(),
 3017                self.app_state.clone(),
 3018                None,
 3019                env,
 3020                None,
 3021                OpenMode::Activate,
 3022                cx,
 3023            );
 3024            cx.spawn_in(window, async move |_vh, cx| {
 3025                let OpenResult {
 3026                    window: multi_workspace_window,
 3027                    ..
 3028                } = task.await?;
 3029                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 3030                    let workspace = multi_workspace.workspace().clone();
 3031                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 3032                })
 3033            })
 3034        }
 3035    }
 3036
 3037    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3038        self.project.read(cx).worktrees(cx)
 3039    }
 3040
 3041    pub fn visible_worktrees<'a>(
 3042        &self,
 3043        cx: &'a App,
 3044    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 3045        self.project.read(cx).visible_worktrees(cx)
 3046    }
 3047
 3048    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 3049        let futures = self
 3050            .worktrees(cx)
 3051            .filter_map(|worktree| worktree.read(cx).as_local())
 3052            .map(|worktree| worktree.scan_complete())
 3053            .collect::<Vec<_>>();
 3054        async move {
 3055            for future in futures {
 3056                future.await;
 3057            }
 3058        }
 3059    }
 3060
 3061    pub fn close_global(cx: &mut App) {
 3062        cx.defer(|cx| {
 3063            cx.windows().iter().find(|window| {
 3064                window
 3065                    .update(cx, |_, window, _| {
 3066                        if window.is_window_active() {
 3067                            //This can only get called when the window's project connection has been lost
 3068                            //so we don't need to prompt the user for anything and instead just close the window
 3069                            window.remove_window();
 3070                            true
 3071                        } else {
 3072                            false
 3073                        }
 3074                    })
 3075                    .unwrap_or(false)
 3076            });
 3077        });
 3078    }
 3079
 3080    pub fn move_focused_panel_to_next_position(
 3081        &mut self,
 3082        _: &MoveFocusedPanelToNextPosition,
 3083        window: &mut Window,
 3084        cx: &mut Context<Self>,
 3085    ) {
 3086        let docks = self.all_docks();
 3087        let active_dock = docks
 3088            .into_iter()
 3089            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 3090
 3091        if let Some(dock) = active_dock {
 3092            dock.update(cx, |dock, cx| {
 3093                let active_panel = dock
 3094                    .active_panel()
 3095                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 3096
 3097                if let Some(panel) = active_panel {
 3098                    panel.move_to_next_position(window, cx);
 3099                }
 3100            })
 3101        }
 3102    }
 3103
 3104    pub fn prepare_to_close(
 3105        &mut self,
 3106        close_intent: CloseIntent,
 3107        window: &mut Window,
 3108        cx: &mut Context<Self>,
 3109    ) -> Task<Result<bool>> {
 3110        let active_call = self.active_global_call();
 3111
 3112        cx.spawn_in(window, async move |this, cx| {
 3113            this.update(cx, |this, _| {
 3114                if close_intent == CloseIntent::CloseWindow {
 3115                    this.removing = true;
 3116                }
 3117            })?;
 3118
 3119            let workspace_count = cx.update(|_window, cx| {
 3120                cx.windows()
 3121                    .iter()
 3122                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 3123                    .count()
 3124            })?;
 3125
 3126            #[cfg(target_os = "macos")]
 3127            let save_last_workspace = false;
 3128
 3129            // On Linux and Windows, closing the last window should restore the last workspace.
 3130            #[cfg(not(target_os = "macos"))]
 3131            let save_last_workspace = {
 3132                let remaining_workspaces = cx.update(|_window, cx| {
 3133                    cx.windows()
 3134                        .iter()
 3135                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 3136                        .filter_map(|multi_workspace| {
 3137                            multi_workspace
 3138                                .update(cx, |multi_workspace, _, cx| {
 3139                                    multi_workspace.workspace().read(cx).removing
 3140                                })
 3141                                .ok()
 3142                        })
 3143                        .filter(|removing| !removing)
 3144                        .count()
 3145                })?;
 3146
 3147                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 3148            };
 3149
 3150            if let Some(active_call) = active_call
 3151                && workspace_count == 1
 3152                && cx
 3153                    .update(|_window, cx| active_call.0.is_in_room(cx))
 3154                    .unwrap_or(false)
 3155            {
 3156                if close_intent == CloseIntent::CloseWindow {
 3157                    this.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3158                    let answer = cx.update(|window, cx| {
 3159                        window.prompt(
 3160                            PromptLevel::Warning,
 3161                            "Do you want to leave the current call?",
 3162                            None,
 3163                            &["Close window and hang up", "Cancel"],
 3164                            cx,
 3165                        )
 3166                    })?;
 3167
 3168                    if answer.await.log_err() == Some(1) {
 3169                        return anyhow::Ok(false);
 3170                    } else {
 3171                        if let Ok(task) = cx.update(|_window, cx| active_call.0.hang_up(cx)) {
 3172                            task.await.log_err();
 3173                        }
 3174                    }
 3175                }
 3176                if close_intent == CloseIntent::ReplaceWindow {
 3177                    _ = cx.update(|_window, cx| {
 3178                        let multi_workspace = cx
 3179                            .windows()
 3180                            .iter()
 3181                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 3182                            .next()
 3183                            .unwrap();
 3184                        let project = multi_workspace
 3185                            .read(cx)?
 3186                            .workspace()
 3187                            .read(cx)
 3188                            .project
 3189                            .clone();
 3190                        if project.read(cx).is_shared() {
 3191                            active_call.0.unshare_project(project, cx)?;
 3192                        }
 3193                        Ok::<_, anyhow::Error>(())
 3194                    });
 3195                }
 3196            }
 3197
 3198            let save_result = this
 3199                .update_in(cx, |this, window, cx| {
 3200                    this.save_all_internal(SaveIntent::Close, window, cx)
 3201                })?
 3202                .await;
 3203
 3204            // If we're not quitting, but closing, we remove the workspace from
 3205            // the current session.
 3206            if close_intent != CloseIntent::Quit
 3207                && !save_last_workspace
 3208                && save_result.as_ref().is_ok_and(|&res| res)
 3209            {
 3210                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 3211                    .await;
 3212            }
 3213
 3214            save_result
 3215        })
 3216    }
 3217
 3218    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 3219        self.save_all_internal(
 3220            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 3221            window,
 3222            cx,
 3223        )
 3224        .detach_and_log_err(cx);
 3225    }
 3226
 3227    fn send_keystrokes(
 3228        &mut self,
 3229        action: &SendKeystrokes,
 3230        window: &mut Window,
 3231        cx: &mut Context<Self>,
 3232    ) {
 3233        let keystrokes: Vec<Keystroke> = action
 3234            .0
 3235            .split(' ')
 3236            .flat_map(|k| Keystroke::parse(k).log_err())
 3237            .map(|k| {
 3238                cx.keyboard_mapper()
 3239                    .map_key_equivalent(k, false)
 3240                    .inner()
 3241                    .clone()
 3242            })
 3243            .collect();
 3244        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 3245    }
 3246
 3247    pub fn send_keystrokes_impl(
 3248        &mut self,
 3249        keystrokes: Vec<Keystroke>,
 3250        window: &mut Window,
 3251        cx: &mut Context<Self>,
 3252    ) -> Shared<Task<()>> {
 3253        let mut state = self.dispatching_keystrokes.borrow_mut();
 3254        if !state.dispatched.insert(keystrokes.clone()) {
 3255            cx.propagate();
 3256            return state.task.clone().unwrap();
 3257        }
 3258
 3259        state.queue.extend(keystrokes);
 3260
 3261        let keystrokes = self.dispatching_keystrokes.clone();
 3262        if state.task.is_none() {
 3263            state.task = Some(
 3264                window
 3265                    .spawn(cx, async move |cx| {
 3266                        // limit to 100 keystrokes to avoid infinite recursion.
 3267                        for _ in 0..100 {
 3268                            let keystroke = {
 3269                                let mut state = keystrokes.borrow_mut();
 3270                                let Some(keystroke) = state.queue.pop_front() else {
 3271                                    state.dispatched.clear();
 3272                                    state.task.take();
 3273                                    return;
 3274                                };
 3275                                keystroke
 3276                            };
 3277                            cx.update(|window, cx| {
 3278                                let focused = window.focused(cx);
 3279                                window.dispatch_keystroke(keystroke.clone(), cx);
 3280                                if window.focused(cx) != focused {
 3281                                    // dispatch_keystroke may cause the focus to change.
 3282                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 3283                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 3284                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 3285                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 3286                                    // )
 3287                                    window.draw(cx).clear();
 3288                                }
 3289                            })
 3290                            .ok();
 3291
 3292                            // Yield between synthetic keystrokes so deferred focus and
 3293                            // other effects can settle before dispatching the next key.
 3294                            yield_now().await;
 3295                        }
 3296
 3297                        *keystrokes.borrow_mut() = Default::default();
 3298                        log::error!("over 100 keystrokes passed to send_keystrokes");
 3299                    })
 3300                    .shared(),
 3301            );
 3302        }
 3303        state.task.clone().unwrap()
 3304    }
 3305
 3306    /// Prompts the user to save or discard each dirty item, returning
 3307    /// `true` if they confirmed (saved/discarded everything) or `false`
 3308    /// if they cancelled. Used before removing worktree roots during
 3309    /// thread archival.
 3310    pub fn prompt_to_save_or_discard_dirty_items(
 3311        &mut self,
 3312        window: &mut Window,
 3313        cx: &mut Context<Self>,
 3314    ) -> Task<Result<bool>> {
 3315        self.save_all_internal(SaveIntent::Close, window, cx)
 3316    }
 3317
 3318    fn save_all_internal(
 3319        &mut self,
 3320        mut save_intent: SaveIntent,
 3321        window: &mut Window,
 3322        cx: &mut Context<Self>,
 3323    ) -> Task<Result<bool>> {
 3324        if self.project.read(cx).is_disconnected(cx) {
 3325            return Task::ready(Ok(true));
 3326        }
 3327        let dirty_items = self
 3328            .panes
 3329            .iter()
 3330            .flat_map(|pane| {
 3331                pane.read(cx).items().filter_map(|item| {
 3332                    if item.is_dirty(cx) {
 3333                        item.tab_content_text(0, cx);
 3334                        Some((pane.downgrade(), item.boxed_clone()))
 3335                    } else {
 3336                        None
 3337                    }
 3338                })
 3339            })
 3340            .collect::<Vec<_>>();
 3341
 3342        let project = self.project.clone();
 3343        cx.spawn_in(window, async move |workspace, cx| {
 3344            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 3345                let (serialize_tasks, remaining_dirty_items) =
 3346                    workspace.update_in(cx, |workspace, window, cx| {
 3347                        let mut remaining_dirty_items = Vec::new();
 3348                        let mut serialize_tasks = Vec::new();
 3349                        for (pane, item) in dirty_items {
 3350                            if let Some(task) = item
 3351                                .to_serializable_item_handle(cx)
 3352                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 3353                            {
 3354                                serialize_tasks.push(task);
 3355                            } else {
 3356                                remaining_dirty_items.push((pane, item));
 3357                            }
 3358                        }
 3359                        (serialize_tasks, remaining_dirty_items)
 3360                    })?;
 3361
 3362                futures::future::try_join_all(serialize_tasks).await?;
 3363
 3364                if !remaining_dirty_items.is_empty() {
 3365                    workspace.update(cx, |_, cx| cx.emit(Event::Activate))?;
 3366                }
 3367
 3368                if remaining_dirty_items.len() > 1 {
 3369                    let answer = workspace.update_in(cx, |_, window, cx| {
 3370                        cx.emit(Event::Activate);
 3371                        let detail = Pane::file_names_for_prompt(
 3372                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 3373                            cx,
 3374                        );
 3375                        window.prompt(
 3376                            PromptLevel::Warning,
 3377                            "Do you want to save all changes in the following files?",
 3378                            Some(&detail),
 3379                            &["Save all", "Discard all", "Cancel"],
 3380                            cx,
 3381                        )
 3382                    })?;
 3383                    match answer.await.log_err() {
 3384                        Some(0) => save_intent = SaveIntent::SaveAll,
 3385                        Some(1) => save_intent = SaveIntent::Skip,
 3386                        Some(2) => return Ok(false),
 3387                        _ => {}
 3388                    }
 3389                }
 3390
 3391                remaining_dirty_items
 3392            } else {
 3393                dirty_items
 3394            };
 3395
 3396            for (pane, item) in dirty_items {
 3397                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 3398                    (
 3399                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 3400                        item.project_entry_ids(cx),
 3401                    )
 3402                })?;
 3403                if (singleton || !project_entry_ids.is_empty())
 3404                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 3405                {
 3406                    return Ok(false);
 3407                }
 3408            }
 3409            Ok(true)
 3410        })
 3411    }
 3412
 3413    pub fn open_workspace_for_paths(
 3414        &mut self,
 3415        // replace_current_window: bool,
 3416        mut open_mode: OpenMode,
 3417        paths: Vec<PathBuf>,
 3418        window: &mut Window,
 3419        cx: &mut Context<Self>,
 3420    ) -> Task<Result<Entity<Workspace>>> {
 3421        let requesting_window = window.window_handle().downcast::<MultiWorkspace>();
 3422        let is_remote = self.project.read(cx).is_via_collab();
 3423        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 3424        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 3425
 3426        let workspace_is_empty = !is_remote && !has_worktree && !has_dirty_items;
 3427        if workspace_is_empty {
 3428            open_mode = OpenMode::Activate;
 3429        }
 3430
 3431        let app_state = self.app_state.clone();
 3432
 3433        cx.spawn(async move |_, cx| {
 3434            let OpenResult { workspace, .. } = cx
 3435                .update(|cx| {
 3436                    open_paths(
 3437                        &paths,
 3438                        app_state,
 3439                        OpenOptions {
 3440                            requesting_window,
 3441                            open_mode,
 3442                            ..Default::default()
 3443                        },
 3444                        cx,
 3445                    )
 3446                })
 3447                .await?;
 3448            Ok(workspace)
 3449        })
 3450    }
 3451
 3452    #[allow(clippy::type_complexity)]
 3453    pub fn open_paths(
 3454        &mut self,
 3455        mut abs_paths: Vec<PathBuf>,
 3456        options: OpenOptions,
 3457        pane: Option<WeakEntity<Pane>>,
 3458        window: &mut Window,
 3459        cx: &mut Context<Self>,
 3460    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 3461        let fs = self.app_state.fs.clone();
 3462
 3463        let caller_ordered_abs_paths = abs_paths.clone();
 3464
 3465        // Sort the paths to ensure we add worktrees for parents before their children.
 3466        abs_paths.sort_unstable();
 3467        cx.spawn_in(window, async move |this, cx| {
 3468            let mut tasks = Vec::with_capacity(abs_paths.len());
 3469
 3470            for abs_path in &abs_paths {
 3471                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3472                    OpenVisible::All => Some(true),
 3473                    OpenVisible::None => Some(false),
 3474                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3475                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3476                        Some(None) => Some(true),
 3477                        None => None,
 3478                    },
 3479                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3480                        Some(Some(metadata)) => Some(metadata.is_dir),
 3481                        Some(None) => Some(false),
 3482                        None => None,
 3483                    },
 3484                };
 3485                let project_path = match visible {
 3486                    Some(visible) => match this
 3487                        .update(cx, |this, cx| {
 3488                            Workspace::project_path_for_path(
 3489                                this.project.clone(),
 3490                                abs_path,
 3491                                visible,
 3492                                cx,
 3493                            )
 3494                        })
 3495                        .log_err()
 3496                    {
 3497                        Some(project_path) => project_path.await.log_err(),
 3498                        None => None,
 3499                    },
 3500                    None => None,
 3501                };
 3502
 3503                let this = this.clone();
 3504                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3505                let fs = fs.clone();
 3506                let pane = pane.clone();
 3507                let task = cx.spawn(async move |cx| {
 3508                    let (_worktree, project_path) = project_path?;
 3509                    if fs.is_dir(&abs_path).await {
 3510                        // Opening a directory should not race to update the active entry.
 3511                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3512                        None
 3513                    } else {
 3514                        Some(
 3515                            this.update_in(cx, |this, window, cx| {
 3516                                this.open_path(
 3517                                    project_path,
 3518                                    pane,
 3519                                    options.focus.unwrap_or(true),
 3520                                    window,
 3521                                    cx,
 3522                                )
 3523                            })
 3524                            .ok()?
 3525                            .await,
 3526                        )
 3527                    }
 3528                });
 3529                tasks.push(task);
 3530            }
 3531
 3532            let results = futures::future::join_all(tasks).await;
 3533
 3534            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3535            let mut winner: Option<(PathBuf, bool)> = None;
 3536            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3537                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3538                    if !metadata.is_dir {
 3539                        winner = Some((abs_path, false));
 3540                        break;
 3541                    }
 3542                    if winner.is_none() {
 3543                        winner = Some((abs_path, true));
 3544                    }
 3545                } else if winner.is_none() {
 3546                    winner = Some((abs_path, false));
 3547                }
 3548            }
 3549
 3550            // Compute the winner entry id on the foreground thread and emit once, after all
 3551            // paths finish opening. This avoids races between concurrently-opening paths
 3552            // (directories in particular) and makes the resulting project panel selection
 3553            // deterministic.
 3554            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3555                'emit_winner: {
 3556                    let winner_abs_path: Arc<Path> =
 3557                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3558
 3559                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3560                        OpenVisible::All => true,
 3561                        OpenVisible::None => false,
 3562                        OpenVisible::OnlyFiles => !winner_is_dir,
 3563                        OpenVisible::OnlyDirectories => winner_is_dir,
 3564                    };
 3565
 3566                    let Some(worktree_task) = this
 3567                        .update(cx, |workspace, cx| {
 3568                            workspace.project.update(cx, |project, cx| {
 3569                                project.find_or_create_worktree(
 3570                                    winner_abs_path.as_ref(),
 3571                                    visible,
 3572                                    cx,
 3573                                )
 3574                            })
 3575                        })
 3576                        .ok()
 3577                    else {
 3578                        break 'emit_winner;
 3579                    };
 3580
 3581                    let Ok((worktree, _)) = worktree_task.await else {
 3582                        break 'emit_winner;
 3583                    };
 3584
 3585                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3586                        let worktree = worktree.read(cx);
 3587                        let worktree_abs_path = worktree.abs_path();
 3588                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3589                            worktree.root_entry()
 3590                        } else {
 3591                            winner_abs_path
 3592                                .strip_prefix(worktree_abs_path.as_ref())
 3593                                .ok()
 3594                                .and_then(|relative_path| {
 3595                                    let relative_path =
 3596                                        RelPath::new(relative_path, PathStyle::local())
 3597                                            .log_err()?;
 3598                                    worktree.entry_for_path(&relative_path)
 3599                                })
 3600                        }?;
 3601                        Some(entry.id)
 3602                    }) else {
 3603                        break 'emit_winner;
 3604                    };
 3605
 3606                    this.update(cx, |workspace, cx| {
 3607                        workspace.project.update(cx, |_, cx| {
 3608                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3609                        });
 3610                    })
 3611                    .ok();
 3612                }
 3613            }
 3614
 3615            results
 3616        })
 3617    }
 3618
 3619    pub fn open_resolved_path(
 3620        &mut self,
 3621        path: ResolvedPath,
 3622        window: &mut Window,
 3623        cx: &mut Context<Self>,
 3624    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3625        match path {
 3626            ResolvedPath::ProjectPath { project_path, .. } => {
 3627                self.open_path(project_path, None, true, window, cx)
 3628            }
 3629            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3630                PathBuf::from(path),
 3631                OpenOptions {
 3632                    visible: Some(OpenVisible::None),
 3633                    ..Default::default()
 3634                },
 3635                window,
 3636                cx,
 3637            ),
 3638        }
 3639    }
 3640
 3641    pub fn absolute_path_of_worktree(
 3642        &self,
 3643        worktree_id: WorktreeId,
 3644        cx: &mut Context<Self>,
 3645    ) -> Option<PathBuf> {
 3646        self.project
 3647            .read(cx)
 3648            .worktree_for_id(worktree_id, cx)
 3649            // TODO: use `abs_path` or `root_dir`
 3650            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3651    }
 3652
 3653    pub fn add_folder_to_project(
 3654        &mut self,
 3655        _: &AddFolderToProject,
 3656        window: &mut Window,
 3657        cx: &mut Context<Self>,
 3658    ) {
 3659        let project = self.project.read(cx);
 3660        if project.is_via_collab() {
 3661            self.show_error(
 3662                &anyhow!("You cannot add folders to someone else's project"),
 3663                cx,
 3664            );
 3665            return;
 3666        }
 3667        let paths = self.prompt_for_open_path(
 3668            PathPromptOptions {
 3669                files: false,
 3670                directories: true,
 3671                multiple: true,
 3672                prompt: None,
 3673            },
 3674            DirectoryLister::Project(self.project.clone()),
 3675            window,
 3676            cx,
 3677        );
 3678        cx.spawn_in(window, async move |this, cx| {
 3679            if let Some(paths) = paths.await.log_err().flatten() {
 3680                let results = this
 3681                    .update_in(cx, |this, window, cx| {
 3682                        this.open_paths(
 3683                            paths,
 3684                            OpenOptions {
 3685                                visible: Some(OpenVisible::All),
 3686                                ..Default::default()
 3687                            },
 3688                            None,
 3689                            window,
 3690                            cx,
 3691                        )
 3692                    })?
 3693                    .await;
 3694                for result in results.into_iter().flatten() {
 3695                    result.log_err();
 3696                }
 3697            }
 3698            anyhow::Ok(())
 3699        })
 3700        .detach_and_log_err(cx);
 3701    }
 3702
 3703    pub fn project_path_for_path(
 3704        project: Entity<Project>,
 3705        abs_path: &Path,
 3706        visible: bool,
 3707        cx: &mut App,
 3708    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3709        let entry = project.update(cx, |project, cx| {
 3710            project.find_or_create_worktree(abs_path, visible, cx)
 3711        });
 3712        cx.spawn(async move |cx| {
 3713            let (worktree, path) = entry.await?;
 3714            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3715            Ok((worktree, ProjectPath { worktree_id, path }))
 3716        })
 3717    }
 3718
 3719    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3720        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3721    }
 3722
 3723    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3724        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3725    }
 3726
 3727    pub fn items_of_type<'a, T: Item>(
 3728        &'a self,
 3729        cx: &'a App,
 3730    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3731        self.panes
 3732            .iter()
 3733            .flat_map(|pane| pane.read(cx).items_of_type())
 3734    }
 3735
 3736    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3737        self.active_pane().read(cx).active_item()
 3738    }
 3739
 3740    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3741        let item = self.active_item(cx)?;
 3742        item.to_any_view().downcast::<I>().ok()
 3743    }
 3744
 3745    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3746        self.active_item(cx).and_then(|item| item.project_path(cx))
 3747    }
 3748
 3749    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3750        self.recent_navigation_history_iter(cx)
 3751            .filter_map(|(path, abs_path)| {
 3752                let worktree = self
 3753                    .project
 3754                    .read(cx)
 3755                    .worktree_for_id(path.worktree_id, cx)?;
 3756                if worktree.read(cx).is_visible() {
 3757                    abs_path
 3758                } else {
 3759                    None
 3760                }
 3761            })
 3762            .next()
 3763    }
 3764
 3765    pub fn save_active_item(
 3766        &mut self,
 3767        save_intent: SaveIntent,
 3768        window: &mut Window,
 3769        cx: &mut App,
 3770    ) -> Task<Result<()>> {
 3771        let project = self.project.clone();
 3772        let pane = self.active_pane();
 3773        let item = pane.read(cx).active_item();
 3774        let pane = pane.downgrade();
 3775
 3776        window.spawn(cx, async move |cx| {
 3777            if let Some(item) = item {
 3778                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3779                    .await
 3780                    .map(|_| ())
 3781            } else {
 3782                Ok(())
 3783            }
 3784        })
 3785    }
 3786
 3787    pub fn close_inactive_items_and_panes(
 3788        &mut self,
 3789        action: &CloseInactiveTabsAndPanes,
 3790        window: &mut Window,
 3791        cx: &mut Context<Self>,
 3792    ) {
 3793        if let Some(task) = self.close_all_internal(
 3794            true,
 3795            action.save_intent.unwrap_or(SaveIntent::Close),
 3796            window,
 3797            cx,
 3798        ) {
 3799            task.detach_and_log_err(cx)
 3800        }
 3801    }
 3802
 3803    pub fn close_all_items_and_panes(
 3804        &mut self,
 3805        action: &CloseAllItemsAndPanes,
 3806        window: &mut Window,
 3807        cx: &mut Context<Self>,
 3808    ) {
 3809        if let Some(task) = self.close_all_internal(
 3810            false,
 3811            action.save_intent.unwrap_or(SaveIntent::Close),
 3812            window,
 3813            cx,
 3814        ) {
 3815            task.detach_and_log_err(cx)
 3816        }
 3817    }
 3818
 3819    /// Closes the active item across all panes.
 3820    pub fn close_item_in_all_panes(
 3821        &mut self,
 3822        action: &CloseItemInAllPanes,
 3823        window: &mut Window,
 3824        cx: &mut Context<Self>,
 3825    ) {
 3826        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3827            return;
 3828        };
 3829
 3830        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3831        let close_pinned = action.close_pinned;
 3832
 3833        if let Some(project_path) = active_item.project_path(cx) {
 3834            self.close_items_with_project_path(
 3835                &project_path,
 3836                save_intent,
 3837                close_pinned,
 3838                window,
 3839                cx,
 3840            );
 3841        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3842            let item_id = active_item.item_id();
 3843            self.active_pane().update(cx, |pane, cx| {
 3844                pane.close_item_by_id(item_id, save_intent, window, cx)
 3845                    .detach_and_log_err(cx);
 3846            });
 3847        }
 3848    }
 3849
 3850    /// Closes all items with the given project path across all panes.
 3851    pub fn close_items_with_project_path(
 3852        &mut self,
 3853        project_path: &ProjectPath,
 3854        save_intent: SaveIntent,
 3855        close_pinned: bool,
 3856        window: &mut Window,
 3857        cx: &mut Context<Self>,
 3858    ) {
 3859        let panes = self.panes().to_vec();
 3860        for pane in panes {
 3861            pane.update(cx, |pane, cx| {
 3862                pane.close_items_for_project_path(
 3863                    project_path,
 3864                    save_intent,
 3865                    close_pinned,
 3866                    window,
 3867                    cx,
 3868                )
 3869                .detach_and_log_err(cx);
 3870            });
 3871        }
 3872    }
 3873
 3874    fn close_all_internal(
 3875        &mut self,
 3876        retain_active_pane: bool,
 3877        save_intent: SaveIntent,
 3878        window: &mut Window,
 3879        cx: &mut Context<Self>,
 3880    ) -> Option<Task<Result<()>>> {
 3881        let current_pane = self.active_pane();
 3882
 3883        let mut tasks = Vec::new();
 3884
 3885        if retain_active_pane {
 3886            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3887                pane.close_other_items(
 3888                    &CloseOtherItems {
 3889                        save_intent: None,
 3890                        close_pinned: false,
 3891                    },
 3892                    None,
 3893                    window,
 3894                    cx,
 3895                )
 3896            });
 3897
 3898            tasks.push(current_pane_close);
 3899        }
 3900
 3901        for pane in self.panes() {
 3902            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3903                continue;
 3904            }
 3905
 3906            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3907                pane.close_all_items(
 3908                    &CloseAllItems {
 3909                        save_intent: Some(save_intent),
 3910                        close_pinned: false,
 3911                    },
 3912                    window,
 3913                    cx,
 3914                )
 3915            });
 3916
 3917            tasks.push(close_pane_items)
 3918        }
 3919
 3920        if tasks.is_empty() {
 3921            None
 3922        } else {
 3923            Some(cx.spawn_in(window, async move |_, _| {
 3924                for task in tasks {
 3925                    task.await?
 3926                }
 3927                Ok(())
 3928            }))
 3929        }
 3930    }
 3931
 3932    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3933        self.dock_at_position(position).read(cx).is_open()
 3934    }
 3935
 3936    pub fn toggle_dock(
 3937        &mut self,
 3938        dock_side: DockPosition,
 3939        window: &mut Window,
 3940        cx: &mut Context<Self>,
 3941    ) {
 3942        let mut focus_center = false;
 3943        let mut reveal_dock = false;
 3944
 3945        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3946        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3947
 3948        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3949            telemetry::event!(
 3950                "Panel Button Clicked",
 3951                name = panel.persistent_name(),
 3952                toggle_state = !was_visible
 3953            );
 3954        }
 3955        if was_visible {
 3956            self.save_open_dock_positions(cx);
 3957        }
 3958
 3959        let dock = self.dock_at_position(dock_side);
 3960        dock.update(cx, |dock, cx| {
 3961            dock.set_open(!was_visible, window, cx);
 3962
 3963            if dock.active_panel().is_none() {
 3964                let Some(panel_ix) = dock
 3965                    .first_enabled_panel_idx(cx)
 3966                    .log_with_level(log::Level::Info)
 3967                else {
 3968                    return;
 3969                };
 3970                dock.activate_panel(panel_ix, window, cx);
 3971            }
 3972
 3973            if let Some(active_panel) = dock.active_panel() {
 3974                if was_visible {
 3975                    if active_panel
 3976                        .panel_focus_handle(cx)
 3977                        .contains_focused(window, cx)
 3978                    {
 3979                        focus_center = true;
 3980                    }
 3981                } else {
 3982                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3983                    window.focus(focus_handle, cx);
 3984                    reveal_dock = true;
 3985                }
 3986            }
 3987        });
 3988
 3989        if reveal_dock {
 3990            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3991        }
 3992
 3993        if focus_center {
 3994            self.active_pane
 3995                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3996        }
 3997
 3998        cx.notify();
 3999        self.serialize_workspace(window, cx);
 4000    }
 4001
 4002    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 4003        self.all_docks().into_iter().find(|&dock| {
 4004            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 4005        })
 4006    }
 4007
 4008    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 4009        if let Some(dock) = self.active_dock(window, cx).cloned() {
 4010            self.save_open_dock_positions(cx);
 4011            dock.update(cx, |dock, cx| {
 4012                dock.set_open(false, window, cx);
 4013            });
 4014            return true;
 4015        }
 4016        false
 4017    }
 4018
 4019    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4020        self.save_open_dock_positions(cx);
 4021        for dock in self.all_docks() {
 4022            dock.update(cx, |dock, cx| {
 4023                dock.set_open(false, window, cx);
 4024            });
 4025        }
 4026
 4027        cx.focus_self(window);
 4028        cx.notify();
 4029        self.serialize_workspace(window, cx);
 4030    }
 4031
 4032    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 4033        self.all_docks()
 4034            .into_iter()
 4035            .filter_map(|dock| {
 4036                let dock_ref = dock.read(cx);
 4037                if dock_ref.is_open() {
 4038                    Some(dock_ref.position())
 4039                } else {
 4040                    None
 4041                }
 4042            })
 4043            .collect()
 4044    }
 4045
 4046    /// Saves the positions of currently open docks.
 4047    ///
 4048    /// Updates `last_open_dock_positions` with positions of all currently open
 4049    /// docks, to later be restored by the 'Toggle All Docks' action.
 4050    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 4051        let open_dock_positions = self.get_open_dock_positions(cx);
 4052        if !open_dock_positions.is_empty() {
 4053            self.last_open_dock_positions = open_dock_positions;
 4054        }
 4055    }
 4056
 4057    /// Toggles all docks between open and closed states.
 4058    ///
 4059    /// If any docks are open, closes all and remembers their positions. If all
 4060    /// docks are closed, restores the last remembered dock configuration.
 4061    fn toggle_all_docks(
 4062        &mut self,
 4063        _: &ToggleAllDocks,
 4064        window: &mut Window,
 4065        cx: &mut Context<Self>,
 4066    ) {
 4067        let open_dock_positions = self.get_open_dock_positions(cx);
 4068
 4069        if !open_dock_positions.is_empty() {
 4070            self.close_all_docks(window, cx);
 4071        } else if !self.last_open_dock_positions.is_empty() {
 4072            self.restore_last_open_docks(window, cx);
 4073        }
 4074    }
 4075
 4076    /// Reopens docks from the most recently remembered configuration.
 4077    ///
 4078    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 4079    /// and clears the stored positions.
 4080    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4081        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 4082
 4083        for position in positions_to_open {
 4084            let dock = self.dock_at_position(position);
 4085            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 4086        }
 4087
 4088        cx.focus_self(window);
 4089        cx.notify();
 4090        self.serialize_workspace(window, cx);
 4091    }
 4092
 4093    /// Transfer focus to the panel of the given type.
 4094    pub fn focus_panel<T: Panel>(
 4095        &mut self,
 4096        window: &mut Window,
 4097        cx: &mut Context<Self>,
 4098    ) -> Option<Entity<T>> {
 4099        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 4100        panel.to_any().downcast().ok()
 4101    }
 4102
 4103    /// Focus the panel of the given type if it isn't already focused. If it is
 4104    /// already focused, then transfer focus back to the workspace center.
 4105    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 4106    /// panel when transferring focus back to the center.
 4107    pub fn toggle_panel_focus<T: Panel>(
 4108        &mut self,
 4109        window: &mut Window,
 4110        cx: &mut Context<Self>,
 4111    ) -> bool {
 4112        let mut did_focus_panel = false;
 4113        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 4114            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 4115            did_focus_panel
 4116        });
 4117
 4118        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 4119            self.close_panel::<T>(window, cx);
 4120        }
 4121
 4122        telemetry::event!(
 4123            "Panel Button Clicked",
 4124            name = T::persistent_name(),
 4125            toggle_state = did_focus_panel
 4126        );
 4127
 4128        did_focus_panel
 4129    }
 4130
 4131    pub fn focus_center_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4132        if let Some(item) = self.active_item(cx) {
 4133            item.item_focus_handle(cx).focus(window, cx);
 4134        } else {
 4135            log::error!("Could not find a focus target when switching focus to the center panes",);
 4136        }
 4137    }
 4138
 4139    pub fn activate_panel_for_proto_id(
 4140        &mut self,
 4141        panel_id: PanelId,
 4142        window: &mut Window,
 4143        cx: &mut Context<Self>,
 4144    ) -> Option<Arc<dyn PanelHandle>> {
 4145        let mut panel = None;
 4146        for dock in self.all_docks() {
 4147            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 4148                panel = dock.update(cx, |dock, cx| {
 4149                    dock.activate_panel(panel_index, window, cx);
 4150                    dock.set_open(true, window, cx);
 4151                    dock.active_panel().cloned()
 4152                });
 4153                break;
 4154            }
 4155        }
 4156
 4157        if panel.is_some() {
 4158            cx.notify();
 4159            self.serialize_workspace(window, cx);
 4160        }
 4161
 4162        panel
 4163    }
 4164
 4165    /// Focus or unfocus the given panel type, depending on the given callback.
 4166    fn focus_or_unfocus_panel<T: Panel>(
 4167        &mut self,
 4168        window: &mut Window,
 4169        cx: &mut Context<Self>,
 4170        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 4171    ) -> Option<Arc<dyn PanelHandle>> {
 4172        let mut result_panel = None;
 4173        let mut serialize = false;
 4174        for dock in self.all_docks() {
 4175            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4176                let mut focus_center = false;
 4177                let panel = dock.update(cx, |dock, cx| {
 4178                    dock.activate_panel(panel_index, window, cx);
 4179
 4180                    let panel = dock.active_panel().cloned();
 4181                    if let Some(panel) = panel.as_ref() {
 4182                        if should_focus(&**panel, window, cx) {
 4183                            dock.set_open(true, window, cx);
 4184                            panel.panel_focus_handle(cx).focus(window, cx);
 4185                        } else {
 4186                            focus_center = true;
 4187                        }
 4188                    }
 4189                    panel
 4190                });
 4191
 4192                if focus_center {
 4193                    self.active_pane
 4194                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4195                }
 4196
 4197                result_panel = panel;
 4198                serialize = true;
 4199                break;
 4200            }
 4201        }
 4202
 4203        if serialize {
 4204            self.serialize_workspace(window, cx);
 4205        }
 4206
 4207        cx.notify();
 4208        result_panel
 4209    }
 4210
 4211    /// Open the panel of the given type
 4212    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4213        for dock in self.all_docks() {
 4214            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 4215                dock.update(cx, |dock, cx| {
 4216                    dock.activate_panel(panel_index, window, cx);
 4217                    dock.set_open(true, window, cx);
 4218                });
 4219            }
 4220        }
 4221    }
 4222
 4223    /// Open the panel of the given type, dismissing any zoomed items that
 4224    /// would obscure it (e.g. a zoomed terminal).
 4225    pub fn reveal_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4226        let dock_position = self.all_docks().iter().find_map(|dock| {
 4227            let dock = dock.read(cx);
 4228            dock.panel_index_for_type::<T>().map(|_| dock.position())
 4229        });
 4230        self.dismiss_zoomed_items_to_reveal(dock_position, window, cx);
 4231        self.open_panel::<T>(window, cx);
 4232    }
 4233
 4234    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 4235        for dock in self.all_docks().iter() {
 4236            dock.update(cx, |dock, cx| {
 4237                if dock.panel::<T>().is_some() {
 4238                    dock.set_open(false, window, cx)
 4239                }
 4240            })
 4241        }
 4242    }
 4243
 4244    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 4245        self.all_docks()
 4246            .iter()
 4247            .find_map(|dock| dock.read(cx).panel::<T>())
 4248    }
 4249
 4250    fn dismiss_zoomed_items_to_reveal(
 4251        &mut self,
 4252        dock_to_reveal: Option<DockPosition>,
 4253        window: &mut Window,
 4254        cx: &mut Context<Self>,
 4255    ) {
 4256        // If a center pane is zoomed, unzoom it.
 4257        for pane in &self.panes {
 4258            if pane != &self.active_pane || dock_to_reveal.is_some() {
 4259                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4260            }
 4261        }
 4262
 4263        // If another dock is zoomed, hide it.
 4264        let mut focus_center = false;
 4265        for dock in self.all_docks() {
 4266            dock.update(cx, |dock, cx| {
 4267                if Some(dock.position()) != dock_to_reveal
 4268                    && let Some(panel) = dock.active_panel()
 4269                    && panel.is_zoomed(window, cx)
 4270                {
 4271                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 4272                    dock.set_open(false, window, cx);
 4273                }
 4274            });
 4275        }
 4276
 4277        if focus_center {
 4278            self.active_pane
 4279                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 4280        }
 4281
 4282        if self.zoomed_position != dock_to_reveal {
 4283            self.zoomed = None;
 4284            self.zoomed_position = None;
 4285            cx.emit(Event::ZoomChanged);
 4286        }
 4287
 4288        cx.notify();
 4289    }
 4290
 4291    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4292        let pane = cx.new(|cx| {
 4293            let mut pane = Pane::new(
 4294                self.weak_handle(),
 4295                self.project.clone(),
 4296                self.pane_history_timestamp.clone(),
 4297                None,
 4298                NewFile.boxed_clone(),
 4299                true,
 4300                window,
 4301                cx,
 4302            );
 4303            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 4304            pane
 4305        });
 4306        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 4307            .detach();
 4308        self.panes.push(pane.clone());
 4309
 4310        window.focus(&pane.focus_handle(cx), cx);
 4311
 4312        cx.emit(Event::PaneAdded(pane.clone()));
 4313        pane
 4314    }
 4315
 4316    pub fn add_item_to_center(
 4317        &mut self,
 4318        item: Box<dyn ItemHandle>,
 4319        window: &mut Window,
 4320        cx: &mut Context<Self>,
 4321    ) -> bool {
 4322        if let Some(center_pane) = self.last_active_center_pane.clone() {
 4323            if let Some(center_pane) = center_pane.upgrade() {
 4324                center_pane.update(cx, |pane, cx| {
 4325                    pane.add_item(item, true, true, None, window, cx)
 4326                });
 4327                true
 4328            } else {
 4329                false
 4330            }
 4331        } else {
 4332            false
 4333        }
 4334    }
 4335
 4336    pub fn add_item_to_active_pane(
 4337        &mut self,
 4338        item: Box<dyn ItemHandle>,
 4339        destination_index: Option<usize>,
 4340        focus_item: bool,
 4341        window: &mut Window,
 4342        cx: &mut App,
 4343    ) {
 4344        self.add_item(
 4345            self.active_pane.clone(),
 4346            item,
 4347            destination_index,
 4348            false,
 4349            focus_item,
 4350            window,
 4351            cx,
 4352        )
 4353    }
 4354
 4355    pub fn add_item(
 4356        &mut self,
 4357        pane: Entity<Pane>,
 4358        item: Box<dyn ItemHandle>,
 4359        destination_index: Option<usize>,
 4360        activate_pane: bool,
 4361        focus_item: bool,
 4362        window: &mut Window,
 4363        cx: &mut App,
 4364    ) {
 4365        pane.update(cx, |pane, cx| {
 4366            pane.add_item(
 4367                item,
 4368                activate_pane,
 4369                focus_item,
 4370                destination_index,
 4371                window,
 4372                cx,
 4373            )
 4374        });
 4375    }
 4376
 4377    pub fn split_item(
 4378        &mut self,
 4379        split_direction: SplitDirection,
 4380        item: Box<dyn ItemHandle>,
 4381        window: &mut Window,
 4382        cx: &mut Context<Self>,
 4383    ) {
 4384        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 4385        self.add_item(new_pane, item, None, true, true, window, cx);
 4386    }
 4387
 4388    pub fn open_abs_path(
 4389        &mut self,
 4390        abs_path: PathBuf,
 4391        options: OpenOptions,
 4392        window: &mut Window,
 4393        cx: &mut Context<Self>,
 4394    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4395        cx.spawn_in(window, async move |workspace, cx| {
 4396            let open_paths_task_result = workspace
 4397                .update_in(cx, |workspace, window, cx| {
 4398                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 4399                })
 4400                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 4401                .await;
 4402            anyhow::ensure!(
 4403                open_paths_task_result.len() == 1,
 4404                "open abs path {abs_path:?} task returned incorrect number of results"
 4405            );
 4406            match open_paths_task_result
 4407                .into_iter()
 4408                .next()
 4409                .expect("ensured single task result")
 4410            {
 4411                Some(open_result) => {
 4412                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 4413                }
 4414                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 4415            }
 4416        })
 4417    }
 4418
 4419    pub fn split_abs_path(
 4420        &mut self,
 4421        abs_path: PathBuf,
 4422        visible: bool,
 4423        window: &mut Window,
 4424        cx: &mut Context<Self>,
 4425    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4426        let project_path_task =
 4427            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 4428        cx.spawn_in(window, async move |this, cx| {
 4429            let (_, path) = project_path_task.await?;
 4430            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 4431                .await
 4432        })
 4433    }
 4434
 4435    pub fn open_path(
 4436        &mut self,
 4437        path: impl Into<ProjectPath>,
 4438        pane: Option<WeakEntity<Pane>>,
 4439        focus_item: bool,
 4440        window: &mut Window,
 4441        cx: &mut App,
 4442    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4443        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 4444    }
 4445
 4446    pub fn open_path_preview(
 4447        &mut self,
 4448        path: impl Into<ProjectPath>,
 4449        pane: Option<WeakEntity<Pane>>,
 4450        focus_item: bool,
 4451        allow_preview: bool,
 4452        activate: bool,
 4453        window: &mut Window,
 4454        cx: &mut App,
 4455    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4456        let pane = pane.unwrap_or_else(|| {
 4457            self.last_active_center_pane.clone().unwrap_or_else(|| {
 4458                self.panes
 4459                    .first()
 4460                    .expect("There must be an active pane")
 4461                    .downgrade()
 4462            })
 4463        });
 4464
 4465        let project_path = path.into();
 4466        let task = self.load_path(project_path.clone(), window, cx);
 4467        window.spawn(cx, async move |cx| {
 4468            let (project_entry_id, build_item) = task.await?;
 4469
 4470            pane.update_in(cx, |pane, window, cx| {
 4471                pane.open_item(
 4472                    project_entry_id,
 4473                    project_path,
 4474                    focus_item,
 4475                    allow_preview,
 4476                    activate,
 4477                    None,
 4478                    window,
 4479                    cx,
 4480                    build_item,
 4481                )
 4482            })
 4483        })
 4484    }
 4485
 4486    pub fn split_path(
 4487        &mut self,
 4488        path: impl Into<ProjectPath>,
 4489        window: &mut Window,
 4490        cx: &mut Context<Self>,
 4491    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4492        self.split_path_preview(path, false, None, window, cx)
 4493    }
 4494
 4495    pub fn split_path_preview(
 4496        &mut self,
 4497        path: impl Into<ProjectPath>,
 4498        allow_preview: bool,
 4499        split_direction: Option<SplitDirection>,
 4500        window: &mut Window,
 4501        cx: &mut Context<Self>,
 4502    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4503        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4504            self.panes
 4505                .first()
 4506                .expect("There must be an active pane")
 4507                .downgrade()
 4508        });
 4509
 4510        if let Member::Pane(center_pane) = &self.center.root
 4511            && center_pane.read(cx).items_len() == 0
 4512        {
 4513            return self.open_path(path, Some(pane), true, window, cx);
 4514        }
 4515
 4516        let project_path = path.into();
 4517        let task = self.load_path(project_path.clone(), window, cx);
 4518        cx.spawn_in(window, async move |this, cx| {
 4519            let (project_entry_id, build_item) = task.await?;
 4520            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4521                let pane = pane.upgrade()?;
 4522                let new_pane = this.split_pane(
 4523                    pane,
 4524                    split_direction.unwrap_or(SplitDirection::Right),
 4525                    window,
 4526                    cx,
 4527                );
 4528                new_pane.update(cx, |new_pane, cx| {
 4529                    Some(new_pane.open_item(
 4530                        project_entry_id,
 4531                        project_path,
 4532                        true,
 4533                        allow_preview,
 4534                        true,
 4535                        None,
 4536                        window,
 4537                        cx,
 4538                        build_item,
 4539                    ))
 4540                })
 4541            })
 4542            .map(|option| option.context("pane was dropped"))?
 4543        })
 4544    }
 4545
 4546    fn load_path(
 4547        &mut self,
 4548        path: ProjectPath,
 4549        window: &mut Window,
 4550        cx: &mut App,
 4551    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4552        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4553        registry.open_path(self.project(), &path, window, cx)
 4554    }
 4555
 4556    pub fn find_project_item<T>(
 4557        &self,
 4558        pane: &Entity<Pane>,
 4559        project_item: &Entity<T::Item>,
 4560        cx: &App,
 4561    ) -> Option<Entity<T>>
 4562    where
 4563        T: ProjectItem,
 4564    {
 4565        use project::ProjectItem as _;
 4566        let project_item = project_item.read(cx);
 4567        let entry_id = project_item.entry_id(cx);
 4568        let project_path = project_item.project_path(cx);
 4569
 4570        let mut item = None;
 4571        if let Some(entry_id) = entry_id {
 4572            item = pane.read(cx).item_for_entry(entry_id, cx);
 4573        }
 4574        if item.is_none()
 4575            && let Some(project_path) = project_path
 4576        {
 4577            item = pane.read(cx).item_for_path(project_path, cx);
 4578        }
 4579
 4580        item.and_then(|item| item.downcast::<T>())
 4581    }
 4582
 4583    pub fn is_project_item_open<T>(
 4584        &self,
 4585        pane: &Entity<Pane>,
 4586        project_item: &Entity<T::Item>,
 4587        cx: &App,
 4588    ) -> bool
 4589    where
 4590        T: ProjectItem,
 4591    {
 4592        self.find_project_item::<T>(pane, project_item, cx)
 4593            .is_some()
 4594    }
 4595
 4596    pub fn open_project_item<T>(
 4597        &mut self,
 4598        pane: Entity<Pane>,
 4599        project_item: Entity<T::Item>,
 4600        activate_pane: bool,
 4601        focus_item: bool,
 4602        keep_old_preview: bool,
 4603        allow_new_preview: bool,
 4604        window: &mut Window,
 4605        cx: &mut Context<Self>,
 4606    ) -> Entity<T>
 4607    where
 4608        T: ProjectItem,
 4609    {
 4610        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4611
 4612        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4613            if !keep_old_preview
 4614                && let Some(old_id) = old_item_id
 4615                && old_id != item.item_id()
 4616            {
 4617                // switching to a different item, so unpreview old active item
 4618                pane.update(cx, |pane, _| {
 4619                    pane.unpreview_item_if_preview(old_id);
 4620                });
 4621            }
 4622
 4623            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4624            if !allow_new_preview {
 4625                pane.update(cx, |pane, _| {
 4626                    pane.unpreview_item_if_preview(item.item_id());
 4627                });
 4628            }
 4629            return item;
 4630        }
 4631
 4632        let item = pane.update(cx, |pane, cx| {
 4633            cx.new(|cx| {
 4634                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4635            })
 4636        });
 4637        let mut destination_index = None;
 4638        pane.update(cx, |pane, cx| {
 4639            if !keep_old_preview && let Some(old_id) = old_item_id {
 4640                pane.unpreview_item_if_preview(old_id);
 4641            }
 4642            if allow_new_preview {
 4643                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4644            }
 4645        });
 4646
 4647        self.add_item(
 4648            pane,
 4649            Box::new(item.clone()),
 4650            destination_index,
 4651            activate_pane,
 4652            focus_item,
 4653            window,
 4654            cx,
 4655        );
 4656        item
 4657    }
 4658
 4659    pub fn open_shared_screen(
 4660        &mut self,
 4661        peer_id: PeerId,
 4662        window: &mut Window,
 4663        cx: &mut Context<Self>,
 4664    ) {
 4665        if let Some(shared_screen) =
 4666            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4667        {
 4668            self.active_pane.update(cx, |pane, cx| {
 4669                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4670            });
 4671        }
 4672    }
 4673
 4674    pub fn activate_item(
 4675        &mut self,
 4676        item: &dyn ItemHandle,
 4677        activate_pane: bool,
 4678        focus_item: bool,
 4679        window: &mut Window,
 4680        cx: &mut App,
 4681    ) -> bool {
 4682        let result = self.panes.iter().find_map(|pane| {
 4683            pane.read(cx)
 4684                .index_for_item(item)
 4685                .map(|ix| (pane.clone(), ix))
 4686        });
 4687        if let Some((pane, ix)) = result {
 4688            pane.update(cx, |pane, cx| {
 4689                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4690            });
 4691            true
 4692        } else {
 4693            false
 4694        }
 4695    }
 4696
 4697    fn activate_pane_at_index(
 4698        &mut self,
 4699        action: &ActivatePane,
 4700        window: &mut Window,
 4701        cx: &mut Context<Self>,
 4702    ) {
 4703        let panes = self.center.panes();
 4704        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4705            window.focus(&pane.focus_handle(cx), cx);
 4706        } else {
 4707            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4708                .detach();
 4709        }
 4710    }
 4711
 4712    fn move_item_to_pane_at_index(
 4713        &mut self,
 4714        action: &MoveItemToPane,
 4715        window: &mut Window,
 4716        cx: &mut Context<Self>,
 4717    ) {
 4718        let panes = self.center.panes();
 4719        let destination = match panes.get(action.destination) {
 4720            Some(&destination) => destination.clone(),
 4721            None => {
 4722                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4723                    return;
 4724                }
 4725                let direction = SplitDirection::Right;
 4726                let split_off_pane = self
 4727                    .find_pane_in_direction(direction, cx)
 4728                    .unwrap_or_else(|| self.active_pane.clone());
 4729                let new_pane = self.add_pane(window, cx);
 4730                self.center.split(&split_off_pane, &new_pane, direction, cx);
 4731                new_pane
 4732            }
 4733        };
 4734
 4735        if action.clone {
 4736            if self
 4737                .active_pane
 4738                .read(cx)
 4739                .active_item()
 4740                .is_some_and(|item| item.can_split(cx))
 4741            {
 4742                clone_active_item(
 4743                    self.database_id(),
 4744                    &self.active_pane,
 4745                    &destination,
 4746                    action.focus,
 4747                    window,
 4748                    cx,
 4749                );
 4750                return;
 4751            }
 4752        }
 4753        move_active_item(
 4754            &self.active_pane,
 4755            &destination,
 4756            action.focus,
 4757            true,
 4758            window,
 4759            cx,
 4760        )
 4761    }
 4762
 4763    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4764        let panes = self.center.panes();
 4765        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4766            let next_ix = (ix + 1) % panes.len();
 4767            let next_pane = panes[next_ix].clone();
 4768            window.focus(&next_pane.focus_handle(cx), cx);
 4769        }
 4770    }
 4771
 4772    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4773        let panes = self.center.panes();
 4774        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4775            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4776            let prev_pane = panes[prev_ix].clone();
 4777            window.focus(&prev_pane.focus_handle(cx), cx);
 4778        }
 4779    }
 4780
 4781    pub fn activate_last_pane(&mut self, window: &mut Window, cx: &mut App) {
 4782        let last_pane = self.center.last_pane();
 4783        window.focus(&last_pane.focus_handle(cx), cx);
 4784    }
 4785
 4786    pub fn activate_pane_in_direction(
 4787        &mut self,
 4788        direction: SplitDirection,
 4789        window: &mut Window,
 4790        cx: &mut App,
 4791    ) {
 4792        use ActivateInDirectionTarget as Target;
 4793        enum Origin {
 4794            Sidebar,
 4795            LeftDock,
 4796            RightDock,
 4797            BottomDock,
 4798            Center,
 4799        }
 4800
 4801        let origin: Origin = if self
 4802            .sidebar_focus_handle
 4803            .as_ref()
 4804            .is_some_and(|h| h.contains_focused(window, cx))
 4805        {
 4806            Origin::Sidebar
 4807        } else {
 4808            [
 4809                (&self.left_dock, Origin::LeftDock),
 4810                (&self.right_dock, Origin::RightDock),
 4811                (&self.bottom_dock, Origin::BottomDock),
 4812            ]
 4813            .into_iter()
 4814            .find_map(|(dock, origin)| {
 4815                if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4816                    Some(origin)
 4817                } else {
 4818                    None
 4819                }
 4820            })
 4821            .unwrap_or(Origin::Center)
 4822        };
 4823
 4824        let get_last_active_pane = || {
 4825            let pane = self
 4826                .last_active_center_pane
 4827                .clone()
 4828                .unwrap_or_else(|| {
 4829                    self.panes
 4830                        .first()
 4831                        .expect("There must be an active pane")
 4832                        .downgrade()
 4833                })
 4834                .upgrade()?;
 4835            (pane.read(cx).items_len() != 0).then_some(pane)
 4836        };
 4837
 4838        let try_dock =
 4839            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4840
 4841        let sidebar_target = self
 4842            .sidebar_focus_handle
 4843            .as_ref()
 4844            .map(|h| Target::Sidebar(h.clone()));
 4845
 4846        let sidebar_on_right = self
 4847            .multi_workspace
 4848            .as_ref()
 4849            .and_then(|mw| mw.upgrade())
 4850            .map_or(false, |mw| {
 4851                mw.read(cx).sidebar_side(cx) == SidebarSide::Right
 4852            });
 4853
 4854        let away_from_sidebar = if sidebar_on_right {
 4855            SplitDirection::Left
 4856        } else {
 4857            SplitDirection::Right
 4858        };
 4859
 4860        let (near_dock, far_dock) = if sidebar_on_right {
 4861            (&self.right_dock, &self.left_dock)
 4862        } else {
 4863            (&self.left_dock, &self.right_dock)
 4864        };
 4865
 4866        let target = match (origin, direction) {
 4867            (Origin::Sidebar, dir) if dir == away_from_sidebar => try_dock(near_dock)
 4868                .or_else(|| get_last_active_pane().map(Target::Pane))
 4869                .or_else(|| try_dock(&self.bottom_dock))
 4870                .or_else(|| try_dock(far_dock)),
 4871
 4872            (Origin::Sidebar, _) => None,
 4873
 4874            // We're in the center, so we first try to go to a different pane,
 4875            // otherwise try to go to a dock.
 4876            (Origin::Center, direction) => {
 4877                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4878                    Some(Target::Pane(pane))
 4879                } else {
 4880                    match direction {
 4881                        SplitDirection::Up => None,
 4882                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4883                        SplitDirection::Left => {
 4884                            let dock_target = try_dock(&self.left_dock);
 4885                            if sidebar_on_right {
 4886                                dock_target
 4887                            } else {
 4888                                dock_target.or(sidebar_target)
 4889                            }
 4890                        }
 4891                        SplitDirection::Right => {
 4892                            let dock_target = try_dock(&self.right_dock);
 4893                            if sidebar_on_right {
 4894                                dock_target.or(sidebar_target)
 4895                            } else {
 4896                                dock_target
 4897                            }
 4898                        }
 4899                    }
 4900                }
 4901            }
 4902
 4903            (Origin::LeftDock, SplitDirection::Right) => {
 4904                if let Some(last_active_pane) = get_last_active_pane() {
 4905                    Some(Target::Pane(last_active_pane))
 4906                } else {
 4907                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4908                }
 4909            }
 4910
 4911            (Origin::LeftDock, SplitDirection::Left) => {
 4912                if sidebar_on_right {
 4913                    None
 4914                } else {
 4915                    sidebar_target
 4916                }
 4917            }
 4918
 4919            (Origin::LeftDock, SplitDirection::Down)
 4920            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4921
 4922            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4923            (Origin::BottomDock, SplitDirection::Left) => {
 4924                let dock_target = try_dock(&self.left_dock);
 4925                if sidebar_on_right {
 4926                    dock_target
 4927                } else {
 4928                    dock_target.or(sidebar_target)
 4929                }
 4930            }
 4931            (Origin::BottomDock, SplitDirection::Right) => {
 4932                let dock_target = try_dock(&self.right_dock);
 4933                if sidebar_on_right {
 4934                    dock_target.or(sidebar_target)
 4935                } else {
 4936                    dock_target
 4937                }
 4938            }
 4939
 4940            (Origin::RightDock, SplitDirection::Left) => {
 4941                if let Some(last_active_pane) = get_last_active_pane() {
 4942                    Some(Target::Pane(last_active_pane))
 4943                } else {
 4944                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4945                }
 4946            }
 4947
 4948            (Origin::RightDock, SplitDirection::Right) => {
 4949                if sidebar_on_right {
 4950                    sidebar_target
 4951                } else {
 4952                    None
 4953                }
 4954            }
 4955
 4956            _ => None,
 4957        };
 4958
 4959        match target {
 4960            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4961                let pane = pane.read(cx);
 4962                if let Some(item) = pane.active_item() {
 4963                    item.item_focus_handle(cx).focus(window, cx);
 4964                } else {
 4965                    log::error!(
 4966                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4967                    );
 4968                }
 4969            }
 4970            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4971                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4972                window.defer(cx, move |window, cx| {
 4973                    let dock = dock.read(cx);
 4974                    if let Some(panel) = dock.active_panel() {
 4975                        panel.panel_focus_handle(cx).focus(window, cx);
 4976                    } else {
 4977                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4978                    }
 4979                })
 4980            }
 4981            Some(ActivateInDirectionTarget::Sidebar(focus_handle)) => {
 4982                focus_handle.focus(window, cx);
 4983            }
 4984            None => {}
 4985        }
 4986    }
 4987
 4988    pub fn move_item_to_pane_in_direction(
 4989        &mut self,
 4990        action: &MoveItemToPaneInDirection,
 4991        window: &mut Window,
 4992        cx: &mut Context<Self>,
 4993    ) {
 4994        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4995            Some(destination) => destination,
 4996            None => {
 4997                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4998                    return;
 4999                }
 5000                let new_pane = self.add_pane(window, cx);
 5001                self.center
 5002                    .split(&self.active_pane, &new_pane, action.direction, cx);
 5003                new_pane
 5004            }
 5005        };
 5006
 5007        if action.clone {
 5008            if self
 5009                .active_pane
 5010                .read(cx)
 5011                .active_item()
 5012                .is_some_and(|item| item.can_split(cx))
 5013            {
 5014                clone_active_item(
 5015                    self.database_id(),
 5016                    &self.active_pane,
 5017                    &destination,
 5018                    action.focus,
 5019                    window,
 5020                    cx,
 5021                );
 5022                return;
 5023            }
 5024        }
 5025        move_active_item(
 5026            &self.active_pane,
 5027            &destination,
 5028            action.focus,
 5029            true,
 5030            window,
 5031            cx,
 5032        );
 5033    }
 5034
 5035    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 5036        self.center.bounding_box_for_pane(pane)
 5037    }
 5038
 5039    pub fn find_pane_in_direction(
 5040        &mut self,
 5041        direction: SplitDirection,
 5042        cx: &App,
 5043    ) -> Option<Entity<Pane>> {
 5044        self.center
 5045            .find_pane_in_direction(&self.active_pane, direction, cx)
 5046            .cloned()
 5047    }
 5048
 5049    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5050        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 5051            self.center.swap(&self.active_pane, &to, cx);
 5052            cx.notify();
 5053        }
 5054    }
 5055
 5056    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 5057        if self
 5058            .center
 5059            .move_to_border(&self.active_pane, direction, cx)
 5060            .unwrap()
 5061        {
 5062            cx.notify();
 5063        }
 5064    }
 5065
 5066    pub fn resize_pane(
 5067        &mut self,
 5068        axis: gpui::Axis,
 5069        amount: Pixels,
 5070        window: &mut Window,
 5071        cx: &mut Context<Self>,
 5072    ) {
 5073        let docks = self.all_docks();
 5074        let active_dock = docks
 5075            .into_iter()
 5076            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 5077
 5078        if let Some(dock_entity) = active_dock {
 5079            let dock = dock_entity.read(cx);
 5080            let Some(panel_size) = self.dock_size(&dock, window, cx) else {
 5081                return;
 5082            };
 5083            match dock.position() {
 5084                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 5085                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 5086                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 5087            }
 5088        } else {
 5089            self.center
 5090                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 5091        }
 5092        cx.notify();
 5093    }
 5094
 5095    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 5096        self.center.reset_pane_sizes(cx);
 5097        cx.notify();
 5098    }
 5099
 5100    fn handle_pane_focused(
 5101        &mut self,
 5102        pane: Entity<Pane>,
 5103        window: &mut Window,
 5104        cx: &mut Context<Self>,
 5105    ) {
 5106        // This is explicitly hoisted out of the following check for pane identity as
 5107        // terminal panel panes are not registered as a center panes.
 5108        self.status_bar.update(cx, |status_bar, cx| {
 5109            status_bar.set_active_pane(&pane, window, cx);
 5110        });
 5111        if self.active_pane != pane {
 5112            self.set_active_pane(&pane, window, cx);
 5113        }
 5114
 5115        if self.last_active_center_pane.is_none() {
 5116            self.last_active_center_pane = Some(pane.downgrade());
 5117        }
 5118
 5119        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 5120        // This prevents the dock from closing when focus events fire during window activation.
 5121        // We also preserve any dock whose active panel itself has focus — this covers
 5122        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 5123        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 5124            let dock_read = dock.read(cx);
 5125            if let Some(panel) = dock_read.active_panel() {
 5126                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 5127                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 5128                {
 5129                    return Some(dock_read.position());
 5130                }
 5131            }
 5132            None
 5133        });
 5134
 5135        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 5136        if pane.read(cx).is_zoomed() {
 5137            self.zoomed = Some(pane.downgrade().into());
 5138        } else {
 5139            self.zoomed = None;
 5140        }
 5141        self.zoomed_position = None;
 5142        cx.emit(Event::ZoomChanged);
 5143        self.update_active_view_for_followers(window, cx);
 5144        pane.update(cx, |pane, _| {
 5145            pane.track_alternate_file_items();
 5146        });
 5147
 5148        cx.notify();
 5149    }
 5150
 5151    fn set_active_pane(
 5152        &mut self,
 5153        pane: &Entity<Pane>,
 5154        window: &mut Window,
 5155        cx: &mut Context<Self>,
 5156    ) {
 5157        self.active_pane = pane.clone();
 5158        self.active_item_path_changed(true, window, cx);
 5159        self.last_active_center_pane = Some(pane.downgrade());
 5160    }
 5161
 5162    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5163        self.update_active_view_for_followers(window, cx);
 5164    }
 5165
 5166    fn handle_pane_event(
 5167        &mut self,
 5168        pane: &Entity<Pane>,
 5169        event: &pane::Event,
 5170        window: &mut Window,
 5171        cx: &mut Context<Self>,
 5172    ) {
 5173        let mut serialize_workspace = true;
 5174        match event {
 5175            pane::Event::AddItem { item } => {
 5176                item.added_to_pane(self, pane.clone(), window, cx);
 5177                cx.emit(Event::ItemAdded {
 5178                    item: item.boxed_clone(),
 5179                });
 5180            }
 5181            pane::Event::Split { direction, mode } => {
 5182                match mode {
 5183                    SplitMode::ClonePane => {
 5184                        self.split_and_clone(pane.clone(), *direction, window, cx)
 5185                            .detach();
 5186                    }
 5187                    SplitMode::EmptyPane => {
 5188                        self.split_pane(pane.clone(), *direction, window, cx);
 5189                    }
 5190                    SplitMode::MovePane => {
 5191                        self.split_and_move(pane.clone(), *direction, window, cx);
 5192                    }
 5193                };
 5194            }
 5195            pane::Event::JoinIntoNext => {
 5196                self.join_pane_into_next(pane.clone(), window, cx);
 5197            }
 5198            pane::Event::JoinAll => {
 5199                self.join_all_panes(window, cx);
 5200            }
 5201            pane::Event::Remove { focus_on_pane } => {
 5202                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 5203            }
 5204            pane::Event::ActivateItem {
 5205                local,
 5206                focus_changed,
 5207            } => {
 5208                window.invalidate_character_coordinates();
 5209
 5210                pane.update(cx, |pane, _| {
 5211                    pane.track_alternate_file_items();
 5212                });
 5213                if *local {
 5214                    self.unfollow_in_pane(pane, window, cx);
 5215                }
 5216                serialize_workspace = *focus_changed || pane != self.active_pane();
 5217                if pane == self.active_pane() {
 5218                    self.active_item_path_changed(*focus_changed, window, cx);
 5219                    self.update_active_view_for_followers(window, cx);
 5220                } else if *local {
 5221                    self.set_active_pane(pane, window, cx);
 5222                }
 5223            }
 5224            pane::Event::UserSavedItem { item, save_intent } => {
 5225                cx.emit(Event::UserSavedItem {
 5226                    pane: pane.downgrade(),
 5227                    item: item.boxed_clone(),
 5228                    save_intent: *save_intent,
 5229                });
 5230                serialize_workspace = false;
 5231            }
 5232            pane::Event::ChangeItemTitle => {
 5233                if *pane == self.active_pane {
 5234                    self.active_item_path_changed(false, window, cx);
 5235                }
 5236                serialize_workspace = false;
 5237            }
 5238            pane::Event::RemovedItem { item } => {
 5239                cx.emit(Event::ActiveItemChanged);
 5240                self.update_window_edited(window, cx);
 5241                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 5242                    && entry.get().entity_id() == pane.entity_id()
 5243                {
 5244                    entry.remove();
 5245                }
 5246                cx.emit(Event::ItemRemoved {
 5247                    item_id: item.item_id(),
 5248                });
 5249            }
 5250            pane::Event::Focus => {
 5251                window.invalidate_character_coordinates();
 5252                self.handle_pane_focused(pane.clone(), window, cx);
 5253            }
 5254            pane::Event::ZoomIn => {
 5255                if *pane == self.active_pane {
 5256                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 5257                    if pane.read(cx).has_focus(window, cx) {
 5258                        self.zoomed = Some(pane.downgrade().into());
 5259                        self.zoomed_position = None;
 5260                        cx.emit(Event::ZoomChanged);
 5261                    }
 5262                    cx.notify();
 5263                }
 5264            }
 5265            pane::Event::ZoomOut => {
 5266                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 5267                if self.zoomed_position.is_none() {
 5268                    self.zoomed = None;
 5269                    cx.emit(Event::ZoomChanged);
 5270                }
 5271                cx.notify();
 5272            }
 5273            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 5274        }
 5275
 5276        if serialize_workspace {
 5277            self.serialize_workspace(window, cx);
 5278        }
 5279    }
 5280
 5281    pub fn unfollow_in_pane(
 5282        &mut self,
 5283        pane: &Entity<Pane>,
 5284        window: &mut Window,
 5285        cx: &mut Context<Workspace>,
 5286    ) -> Option<CollaboratorId> {
 5287        let leader_id = self.leader_for_pane(pane)?;
 5288        self.unfollow(leader_id, window, cx);
 5289        Some(leader_id)
 5290    }
 5291
 5292    pub fn split_pane(
 5293        &mut self,
 5294        pane_to_split: Entity<Pane>,
 5295        split_direction: SplitDirection,
 5296        window: &mut Window,
 5297        cx: &mut Context<Self>,
 5298    ) -> Entity<Pane> {
 5299        let new_pane = self.add_pane(window, cx);
 5300        self.center
 5301            .split(&pane_to_split, &new_pane, split_direction, cx);
 5302        cx.notify();
 5303        new_pane
 5304    }
 5305
 5306    pub fn split_and_move(
 5307        &mut self,
 5308        pane: Entity<Pane>,
 5309        direction: SplitDirection,
 5310        window: &mut Window,
 5311        cx: &mut Context<Self>,
 5312    ) {
 5313        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 5314            return;
 5315        };
 5316        let new_pane = self.add_pane(window, cx);
 5317        new_pane.update(cx, |pane, cx| {
 5318            pane.add_item(item, true, true, None, window, cx)
 5319        });
 5320        self.center.split(&pane, &new_pane, direction, cx);
 5321        cx.notify();
 5322    }
 5323
 5324    pub fn split_and_clone(
 5325        &mut self,
 5326        pane: Entity<Pane>,
 5327        direction: SplitDirection,
 5328        window: &mut Window,
 5329        cx: &mut Context<Self>,
 5330    ) -> Task<Option<Entity<Pane>>> {
 5331        let Some(item) = pane.read(cx).active_item() else {
 5332            return Task::ready(None);
 5333        };
 5334        if !item.can_split(cx) {
 5335            return Task::ready(None);
 5336        }
 5337        let task = item.clone_on_split(self.database_id(), window, cx);
 5338        cx.spawn_in(window, async move |this, cx| {
 5339            if let Some(clone) = task.await {
 5340                this.update_in(cx, |this, window, cx| {
 5341                    let new_pane = this.add_pane(window, cx);
 5342                    let nav_history = pane.read(cx).fork_nav_history();
 5343                    new_pane.update(cx, |pane, cx| {
 5344                        pane.set_nav_history(nav_history, cx);
 5345                        pane.add_item(clone, true, true, None, window, cx)
 5346                    });
 5347                    this.center.split(&pane, &new_pane, direction, cx);
 5348                    cx.notify();
 5349                    new_pane
 5350                })
 5351                .ok()
 5352            } else {
 5353                None
 5354            }
 5355        })
 5356    }
 5357
 5358    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5359        let active_item = self.active_pane.read(cx).active_item();
 5360        for pane in &self.panes {
 5361            join_pane_into_active(&self.active_pane, pane, window, cx);
 5362        }
 5363        if let Some(active_item) = active_item {
 5364            self.activate_item(active_item.as_ref(), true, true, window, cx);
 5365        }
 5366        cx.notify();
 5367    }
 5368
 5369    pub fn join_pane_into_next(
 5370        &mut self,
 5371        pane: Entity<Pane>,
 5372        window: &mut Window,
 5373        cx: &mut Context<Self>,
 5374    ) {
 5375        let next_pane = self
 5376            .find_pane_in_direction(SplitDirection::Right, cx)
 5377            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 5378            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 5379            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 5380        let Some(next_pane) = next_pane else {
 5381            return;
 5382        };
 5383        move_all_items(&pane, &next_pane, window, cx);
 5384        cx.notify();
 5385    }
 5386
 5387    fn remove_pane(
 5388        &mut self,
 5389        pane: Entity<Pane>,
 5390        focus_on: Option<Entity<Pane>>,
 5391        window: &mut Window,
 5392        cx: &mut Context<Self>,
 5393    ) {
 5394        if self.center.remove(&pane, cx).unwrap() {
 5395            self.force_remove_pane(&pane, &focus_on, window, cx);
 5396            self.unfollow_in_pane(&pane, window, cx);
 5397            self.last_leaders_by_pane.remove(&pane.downgrade());
 5398            for removed_item in pane.read(cx).items() {
 5399                self.panes_by_item.remove(&removed_item.item_id());
 5400            }
 5401
 5402            cx.notify();
 5403        } else {
 5404            self.active_item_path_changed(true, window, cx);
 5405        }
 5406        cx.emit(Event::PaneRemoved);
 5407    }
 5408
 5409    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 5410        &mut self.panes
 5411    }
 5412
 5413    pub fn panes(&self) -> &[Entity<Pane>] {
 5414        &self.panes
 5415    }
 5416
 5417    pub fn active_pane(&self) -> &Entity<Pane> {
 5418        &self.active_pane
 5419    }
 5420
 5421    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 5422        for dock in self.all_docks() {
 5423            if dock.focus_handle(cx).contains_focused(window, cx)
 5424                && let Some(pane) = dock
 5425                    .read(cx)
 5426                    .active_panel()
 5427                    .and_then(|panel| panel.pane(cx))
 5428            {
 5429                return pane;
 5430            }
 5431        }
 5432        self.active_pane().clone()
 5433    }
 5434
 5435    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 5436        self.find_pane_in_direction(SplitDirection::Right, cx)
 5437            .unwrap_or_else(|| {
 5438                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 5439            })
 5440    }
 5441
 5442    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 5443        self.pane_for_item_id(handle.item_id())
 5444    }
 5445
 5446    pub fn pane_for_item_id(&self, item_id: EntityId) -> Option<Entity<Pane>> {
 5447        let weak_pane = self.panes_by_item.get(&item_id)?;
 5448        weak_pane.upgrade()
 5449    }
 5450
 5451    pub fn pane_for_entity_id(&self, entity_id: EntityId) -> Option<Entity<Pane>> {
 5452        self.panes
 5453            .iter()
 5454            .find(|pane| pane.entity_id() == entity_id)
 5455            .cloned()
 5456    }
 5457
 5458    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 5459        self.follower_states.retain(|leader_id, state| {
 5460            if *leader_id == CollaboratorId::PeerId(peer_id) {
 5461                for item in state.items_by_leader_view_id.values() {
 5462                    item.view.set_leader_id(None, window, cx);
 5463                }
 5464                false
 5465            } else {
 5466                true
 5467            }
 5468        });
 5469        cx.notify();
 5470    }
 5471
 5472    pub fn start_following(
 5473        &mut self,
 5474        leader_id: impl Into<CollaboratorId>,
 5475        window: &mut Window,
 5476        cx: &mut Context<Self>,
 5477    ) -> Option<Task<Result<()>>> {
 5478        let leader_id = leader_id.into();
 5479        let pane = self.active_pane().clone();
 5480
 5481        self.last_leaders_by_pane
 5482            .insert(pane.downgrade(), leader_id);
 5483        self.unfollow(leader_id, window, cx);
 5484        self.unfollow_in_pane(&pane, window, cx);
 5485        self.follower_states.insert(
 5486            leader_id,
 5487            FollowerState {
 5488                center_pane: pane.clone(),
 5489                dock_pane: None,
 5490                active_view_id: None,
 5491                items_by_leader_view_id: Default::default(),
 5492            },
 5493        );
 5494        cx.notify();
 5495
 5496        match leader_id {
 5497            CollaboratorId::PeerId(leader_peer_id) => {
 5498                let room_id = self.active_call()?.room_id(cx)?;
 5499                let project_id = self.project.read(cx).remote_id();
 5500                let request = self.app_state.client.request(proto::Follow {
 5501                    room_id,
 5502                    project_id,
 5503                    leader_id: Some(leader_peer_id),
 5504                });
 5505
 5506                Some(cx.spawn_in(window, async move |this, cx| {
 5507                    let response = request.await?;
 5508                    this.update(cx, |this, _| {
 5509                        let state = this
 5510                            .follower_states
 5511                            .get_mut(&leader_id)
 5512                            .context("following interrupted")?;
 5513                        state.active_view_id = response
 5514                            .active_view
 5515                            .as_ref()
 5516                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5517                        anyhow::Ok(())
 5518                    })??;
 5519                    if let Some(view) = response.active_view {
 5520                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 5521                    }
 5522                    this.update_in(cx, |this, window, cx| {
 5523                        this.leader_updated(leader_id, window, cx)
 5524                    })?;
 5525                    Ok(())
 5526                }))
 5527            }
 5528            CollaboratorId::Agent => {
 5529                self.leader_updated(leader_id, window, cx)?;
 5530                Some(Task::ready(Ok(())))
 5531            }
 5532        }
 5533    }
 5534
 5535    pub fn follow_next_collaborator(
 5536        &mut self,
 5537        _: &FollowNextCollaborator,
 5538        window: &mut Window,
 5539        cx: &mut Context<Self>,
 5540    ) {
 5541        let collaborators = self.project.read(cx).collaborators();
 5542        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 5543            let mut collaborators = collaborators.keys().copied();
 5544            for peer_id in collaborators.by_ref() {
 5545                if CollaboratorId::PeerId(peer_id) == leader_id {
 5546                    break;
 5547                }
 5548            }
 5549            collaborators.next().map(CollaboratorId::PeerId)
 5550        } else if let Some(last_leader_id) =
 5551            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 5552        {
 5553            match last_leader_id {
 5554                CollaboratorId::PeerId(peer_id) => {
 5555                    if collaborators.contains_key(peer_id) {
 5556                        Some(*last_leader_id)
 5557                    } else {
 5558                        None
 5559                    }
 5560                }
 5561                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 5562            }
 5563        } else {
 5564            None
 5565        };
 5566
 5567        let pane = self.active_pane.clone();
 5568        let Some(leader_id) = next_leader_id.or_else(|| {
 5569            Some(CollaboratorId::PeerId(
 5570                collaborators.keys().copied().next()?,
 5571            ))
 5572        }) else {
 5573            return;
 5574        };
 5575        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5576            return;
 5577        }
 5578        if let Some(task) = self.start_following(leader_id, window, cx) {
 5579            task.detach_and_log_err(cx)
 5580        }
 5581    }
 5582
 5583    pub fn follow(
 5584        &mut self,
 5585        leader_id: impl Into<CollaboratorId>,
 5586        window: &mut Window,
 5587        cx: &mut Context<Self>,
 5588    ) {
 5589        let leader_id = leader_id.into();
 5590
 5591        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5592            let Some(active_call) = GlobalAnyActiveCall::try_global(cx) else {
 5593                return;
 5594            };
 5595            let Some(remote_participant) =
 5596                active_call.0.remote_participant_for_peer_id(peer_id, cx)
 5597            else {
 5598                return;
 5599            };
 5600
 5601            let project = self.project.read(cx);
 5602
 5603            let other_project_id = match remote_participant.location {
 5604                ParticipantLocation::External => None,
 5605                ParticipantLocation::UnsharedProject => None,
 5606                ParticipantLocation::SharedProject { project_id } => {
 5607                    if Some(project_id) == project.remote_id() {
 5608                        None
 5609                    } else {
 5610                        Some(project_id)
 5611                    }
 5612                }
 5613            };
 5614
 5615            // if they are active in another project, follow there.
 5616            if let Some(project_id) = other_project_id {
 5617                let app_state = self.app_state.clone();
 5618                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5619                    .detach_and_prompt_err("Failed to join project", window, cx, |error, _, _| {
 5620                        Some(format!("{error:#}"))
 5621                    });
 5622            }
 5623        }
 5624
 5625        // if you're already following, find the right pane and focus it.
 5626        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5627            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5628
 5629            return;
 5630        }
 5631
 5632        // Otherwise, follow.
 5633        if let Some(task) = self.start_following(leader_id, window, cx) {
 5634            task.detach_and_log_err(cx)
 5635        }
 5636    }
 5637
 5638    pub fn unfollow(
 5639        &mut self,
 5640        leader_id: impl Into<CollaboratorId>,
 5641        window: &mut Window,
 5642        cx: &mut Context<Self>,
 5643    ) -> Option<()> {
 5644        cx.notify();
 5645
 5646        let leader_id = leader_id.into();
 5647        let state = self.follower_states.remove(&leader_id)?;
 5648        for (_, item) in state.items_by_leader_view_id {
 5649            item.view.set_leader_id(None, window, cx);
 5650        }
 5651
 5652        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5653            let project_id = self.project.read(cx).remote_id();
 5654            let room_id = self.active_call()?.room_id(cx)?;
 5655            self.app_state
 5656                .client
 5657                .send(proto::Unfollow {
 5658                    room_id,
 5659                    project_id,
 5660                    leader_id: Some(leader_peer_id),
 5661                })
 5662                .log_err();
 5663        }
 5664
 5665        Some(())
 5666    }
 5667
 5668    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5669        self.follower_states.contains_key(&id.into())
 5670    }
 5671
 5672    fn active_item_path_changed(
 5673        &mut self,
 5674        focus_changed: bool,
 5675        window: &mut Window,
 5676        cx: &mut Context<Self>,
 5677    ) {
 5678        cx.emit(Event::ActiveItemChanged);
 5679        let active_entry = self.active_project_path(cx);
 5680        self.project.update(cx, |project, cx| {
 5681            project.set_active_path(active_entry.clone(), cx)
 5682        });
 5683
 5684        if focus_changed && let Some(project_path) = &active_entry {
 5685            let git_store_entity = self.project.read(cx).git_store().clone();
 5686            git_store_entity.update(cx, |git_store, cx| {
 5687                git_store.set_active_repo_for_path(project_path, cx);
 5688            });
 5689        }
 5690
 5691        self.update_window_title(window, cx);
 5692    }
 5693
 5694    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5695        let project = self.project().read(cx);
 5696        let mut title = String::new();
 5697
 5698        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5699            let name = {
 5700                let settings_location = SettingsLocation {
 5701                    worktree_id: worktree.read(cx).id(),
 5702                    path: RelPath::empty(),
 5703                };
 5704
 5705                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5706                match &settings.project_name {
 5707                    Some(name) => name.as_str(),
 5708                    None => worktree.read(cx).root_name_str(),
 5709                }
 5710            };
 5711            if i > 0 {
 5712                title.push_str(", ");
 5713            }
 5714            title.push_str(name);
 5715        }
 5716
 5717        if title.is_empty() {
 5718            title = "empty project".to_string();
 5719        }
 5720
 5721        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5722            let filename = path.path.file_name().or_else(|| {
 5723                Some(
 5724                    project
 5725                        .worktree_for_id(path.worktree_id, cx)?
 5726                        .read(cx)
 5727                        .root_name_str(),
 5728                )
 5729            });
 5730
 5731            if let Some(filename) = filename {
 5732                title.push_str("");
 5733                title.push_str(filename.as_ref());
 5734            }
 5735        }
 5736
 5737        if project.is_via_collab() {
 5738            title.push_str("");
 5739        } else if project.is_shared() {
 5740            title.push_str("");
 5741        }
 5742
 5743        if let Some(last_title) = self.last_window_title.as_ref()
 5744            && &title == last_title
 5745        {
 5746            return;
 5747        }
 5748        window.set_window_title(&title);
 5749        SystemWindowTabController::update_tab_title(
 5750            cx,
 5751            window.window_handle().window_id(),
 5752            SharedString::from(&title),
 5753        );
 5754        self.last_window_title = Some(title);
 5755    }
 5756
 5757    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5758        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5759        if is_edited != self.window_edited {
 5760            self.window_edited = is_edited;
 5761            window.set_window_edited(self.window_edited)
 5762        }
 5763    }
 5764
 5765    fn update_item_dirty_state(
 5766        &mut self,
 5767        item: &dyn ItemHandle,
 5768        window: &mut Window,
 5769        cx: &mut App,
 5770    ) {
 5771        let is_dirty = item.is_dirty(cx);
 5772        let item_id = item.item_id();
 5773        let was_dirty = self.dirty_items.contains_key(&item_id);
 5774        if is_dirty == was_dirty {
 5775            return;
 5776        }
 5777        if was_dirty {
 5778            self.dirty_items.remove(&item_id);
 5779            self.update_window_edited(window, cx);
 5780            return;
 5781        }
 5782
 5783        let workspace = self.weak_handle();
 5784        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5785            return;
 5786        };
 5787        let on_release_callback = Box::new(move |cx: &mut App| {
 5788            window_handle
 5789                .update(cx, |_, window, cx| {
 5790                    workspace
 5791                        .update(cx, |workspace, cx| {
 5792                            workspace.dirty_items.remove(&item_id);
 5793                            workspace.update_window_edited(window, cx)
 5794                        })
 5795                        .ok();
 5796                })
 5797                .ok();
 5798        });
 5799
 5800        let s = item.on_release(cx, on_release_callback);
 5801        self.dirty_items.insert(item_id, s);
 5802        self.update_window_edited(window, cx);
 5803    }
 5804
 5805    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5806        if self.notifications.is_empty() {
 5807            None
 5808        } else {
 5809            Some(
 5810                div()
 5811                    .absolute()
 5812                    .right_3()
 5813                    .bottom_3()
 5814                    .w_112()
 5815                    .h_full()
 5816                    .flex()
 5817                    .flex_col()
 5818                    .justify_end()
 5819                    .gap_2()
 5820                    .children(
 5821                        self.notifications
 5822                            .iter()
 5823                            .map(|(_, notification)| notification.clone().into_any()),
 5824                    ),
 5825            )
 5826        }
 5827    }
 5828
 5829    // RPC handlers
 5830
 5831    fn active_view_for_follower(
 5832        &self,
 5833        follower_project_id: Option<u64>,
 5834        window: &mut Window,
 5835        cx: &mut Context<Self>,
 5836    ) -> Option<proto::View> {
 5837        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5838        let item = item?;
 5839        let leader_id = self
 5840            .pane_for(&*item)
 5841            .and_then(|pane| self.leader_for_pane(&pane));
 5842        let leader_peer_id = match leader_id {
 5843            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5844            Some(CollaboratorId::Agent) | None => None,
 5845        };
 5846
 5847        let item_handle = item.to_followable_item_handle(cx)?;
 5848        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5849        let variant = item_handle.to_state_proto(window, cx)?;
 5850
 5851        if item_handle.is_project_item(window, cx)
 5852            && (follower_project_id.is_none()
 5853                || follower_project_id != self.project.read(cx).remote_id())
 5854        {
 5855            return None;
 5856        }
 5857
 5858        Some(proto::View {
 5859            id: id.to_proto(),
 5860            leader_id: leader_peer_id,
 5861            variant: Some(variant),
 5862            panel_id: panel_id.map(|id| id as i32),
 5863        })
 5864    }
 5865
 5866    fn handle_follow(
 5867        &mut self,
 5868        follower_project_id: Option<u64>,
 5869        window: &mut Window,
 5870        cx: &mut Context<Self>,
 5871    ) -> proto::FollowResponse {
 5872        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5873
 5874        cx.notify();
 5875        proto::FollowResponse {
 5876            views: active_view.iter().cloned().collect(),
 5877            active_view,
 5878        }
 5879    }
 5880
 5881    fn handle_update_followers(
 5882        &mut self,
 5883        leader_id: PeerId,
 5884        message: proto::UpdateFollowers,
 5885        _window: &mut Window,
 5886        _cx: &mut Context<Self>,
 5887    ) {
 5888        self.leader_updates_tx
 5889            .unbounded_send((leader_id, message))
 5890            .ok();
 5891    }
 5892
 5893    async fn process_leader_update(
 5894        this: &WeakEntity<Self>,
 5895        leader_id: PeerId,
 5896        update: proto::UpdateFollowers,
 5897        cx: &mut AsyncWindowContext,
 5898    ) -> Result<()> {
 5899        match update.variant.context("invalid update")? {
 5900            proto::update_followers::Variant::CreateView(view) => {
 5901                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5902                let should_add_view = this.update(cx, |this, _| {
 5903                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5904                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5905                    } else {
 5906                        anyhow::Ok(false)
 5907                    }
 5908                })??;
 5909
 5910                if should_add_view {
 5911                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5912                }
 5913            }
 5914            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5915                let should_add_view = this.update(cx, |this, _| {
 5916                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5917                        state.active_view_id = update_active_view
 5918                            .view
 5919                            .as_ref()
 5920                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5921
 5922                        if state.active_view_id.is_some_and(|view_id| {
 5923                            !state.items_by_leader_view_id.contains_key(&view_id)
 5924                        }) {
 5925                            anyhow::Ok(true)
 5926                        } else {
 5927                            anyhow::Ok(false)
 5928                        }
 5929                    } else {
 5930                        anyhow::Ok(false)
 5931                    }
 5932                })??;
 5933
 5934                if should_add_view && let Some(view) = update_active_view.view {
 5935                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5936                }
 5937            }
 5938            proto::update_followers::Variant::UpdateView(update_view) => {
 5939                let variant = update_view.variant.context("missing update view variant")?;
 5940                let id = update_view.id.context("missing update view id")?;
 5941                let mut tasks = Vec::new();
 5942                this.update_in(cx, |this, window, cx| {
 5943                    let project = this.project.clone();
 5944                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5945                        let view_id = ViewId::from_proto(id.clone())?;
 5946                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5947                            tasks.push(item.view.apply_update_proto(
 5948                                &project,
 5949                                variant.clone(),
 5950                                window,
 5951                                cx,
 5952                            ));
 5953                        }
 5954                    }
 5955                    anyhow::Ok(())
 5956                })??;
 5957                try_join_all(tasks).await.log_err();
 5958            }
 5959        }
 5960        this.update_in(cx, |this, window, cx| {
 5961            this.leader_updated(leader_id, window, cx)
 5962        })?;
 5963        Ok(())
 5964    }
 5965
 5966    async fn add_view_from_leader(
 5967        this: WeakEntity<Self>,
 5968        leader_id: PeerId,
 5969        view: &proto::View,
 5970        cx: &mut AsyncWindowContext,
 5971    ) -> Result<()> {
 5972        let this = this.upgrade().context("workspace dropped")?;
 5973
 5974        let Some(id) = view.id.clone() else {
 5975            anyhow::bail!("no id for view");
 5976        };
 5977        let id = ViewId::from_proto(id)?;
 5978        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5979
 5980        let pane = this.update(cx, |this, _cx| {
 5981            let state = this
 5982                .follower_states
 5983                .get(&leader_id.into())
 5984                .context("stopped following")?;
 5985            anyhow::Ok(state.pane().clone())
 5986        })?;
 5987        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5988            let client = this.read(cx).client().clone();
 5989            pane.items().find_map(|item| {
 5990                let item = item.to_followable_item_handle(cx)?;
 5991                if item.remote_id(&client, window, cx) == Some(id) {
 5992                    Some(item)
 5993                } else {
 5994                    None
 5995                }
 5996            })
 5997        })?;
 5998        let item = if let Some(existing_item) = existing_item {
 5999            existing_item
 6000        } else {
 6001            let variant = view.variant.clone();
 6002            anyhow::ensure!(variant.is_some(), "missing view variant");
 6003
 6004            let task = cx.update(|window, cx| {
 6005                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 6006            })?;
 6007
 6008            let Some(task) = task else {
 6009                anyhow::bail!(
 6010                    "failed to construct view from leader (maybe from a different version of zed?)"
 6011                );
 6012            };
 6013
 6014            let mut new_item = task.await?;
 6015            pane.update_in(cx, |pane, window, cx| {
 6016                let mut item_to_remove = None;
 6017                for (ix, item) in pane.items().enumerate() {
 6018                    if let Some(item) = item.to_followable_item_handle(cx) {
 6019                        match new_item.dedup(item.as_ref(), window, cx) {
 6020                            Some(item::Dedup::KeepExisting) => {
 6021                                new_item =
 6022                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 6023                                break;
 6024                            }
 6025                            Some(item::Dedup::ReplaceExisting) => {
 6026                                item_to_remove = Some((ix, item.item_id()));
 6027                                break;
 6028                            }
 6029                            None => {}
 6030                        }
 6031                    }
 6032                }
 6033
 6034                if let Some((ix, id)) = item_to_remove {
 6035                    pane.remove_item(id, false, false, window, cx);
 6036                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 6037                }
 6038            })?;
 6039
 6040            new_item
 6041        };
 6042
 6043        this.update_in(cx, |this, window, cx| {
 6044            let state = this.follower_states.get_mut(&leader_id.into())?;
 6045            item.set_leader_id(Some(leader_id.into()), window, cx);
 6046            state.items_by_leader_view_id.insert(
 6047                id,
 6048                FollowerView {
 6049                    view: item,
 6050                    location: panel_id,
 6051                },
 6052            );
 6053
 6054            Some(())
 6055        })
 6056        .context("no follower state")?;
 6057
 6058        Ok(())
 6059    }
 6060
 6061    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6062        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 6063            return;
 6064        };
 6065
 6066        if let Some(agent_location) = self.project.read(cx).agent_location() {
 6067            let buffer_entity_id = agent_location.buffer.entity_id();
 6068            let view_id = ViewId {
 6069                creator: CollaboratorId::Agent,
 6070                id: buffer_entity_id.as_u64(),
 6071            };
 6072            follower_state.active_view_id = Some(view_id);
 6073
 6074            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 6075                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 6076                hash_map::Entry::Vacant(entry) => {
 6077                    let existing_view =
 6078                        follower_state
 6079                            .center_pane
 6080                            .read(cx)
 6081                            .items()
 6082                            .find_map(|item| {
 6083                                let item = item.to_followable_item_handle(cx)?;
 6084                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 6085                                    && item.project_item_model_ids(cx).as_slice()
 6086                                        == [buffer_entity_id]
 6087                                {
 6088                                    Some(item)
 6089                                } else {
 6090                                    None
 6091                                }
 6092                            });
 6093                    let view = existing_view.or_else(|| {
 6094                        agent_location.buffer.upgrade().and_then(|buffer| {
 6095                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 6096                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 6097                            })?
 6098                            .to_followable_item_handle(cx)
 6099                        })
 6100                    });
 6101
 6102                    view.map(|view| {
 6103                        entry.insert(FollowerView {
 6104                            view,
 6105                            location: None,
 6106                        })
 6107                    })
 6108                }
 6109            };
 6110
 6111            if let Some(item) = item {
 6112                item.view
 6113                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 6114                item.view
 6115                    .update_agent_location(agent_location.position, window, cx);
 6116            }
 6117        } else {
 6118            follower_state.active_view_id = None;
 6119        }
 6120
 6121        self.leader_updated(CollaboratorId::Agent, window, cx);
 6122    }
 6123
 6124    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 6125        let mut is_project_item = true;
 6126        let mut update = proto::UpdateActiveView::default();
 6127        if window.is_window_active() {
 6128            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 6129
 6130            if let Some(item) = active_item
 6131                && item.item_focus_handle(cx).contains_focused(window, cx)
 6132            {
 6133                let leader_id = self
 6134                    .pane_for(&*item)
 6135                    .and_then(|pane| self.leader_for_pane(&pane));
 6136                let leader_peer_id = match leader_id {
 6137                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 6138                    Some(CollaboratorId::Agent) | None => None,
 6139                };
 6140
 6141                if let Some(item) = item.to_followable_item_handle(cx) {
 6142                    let id = item
 6143                        .remote_id(&self.app_state.client, window, cx)
 6144                        .map(|id| id.to_proto());
 6145
 6146                    if let Some(id) = id
 6147                        && let Some(variant) = item.to_state_proto(window, cx)
 6148                    {
 6149                        let view = Some(proto::View {
 6150                            id,
 6151                            leader_id: leader_peer_id,
 6152                            variant: Some(variant),
 6153                            panel_id: panel_id.map(|id| id as i32),
 6154                        });
 6155
 6156                        is_project_item = item.is_project_item(window, cx);
 6157                        update = proto::UpdateActiveView { view };
 6158                    };
 6159                }
 6160            }
 6161        }
 6162
 6163        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 6164        if active_view_id != self.last_active_view_id.as_ref() {
 6165            self.last_active_view_id = active_view_id.cloned();
 6166            self.update_followers(
 6167                is_project_item,
 6168                proto::update_followers::Variant::UpdateActiveView(update),
 6169                window,
 6170                cx,
 6171            );
 6172        }
 6173    }
 6174
 6175    fn active_item_for_followers(
 6176        &self,
 6177        window: &mut Window,
 6178        cx: &mut App,
 6179    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 6180        let mut active_item = None;
 6181        let mut panel_id = None;
 6182        for dock in self.all_docks() {
 6183            if dock.focus_handle(cx).contains_focused(window, cx)
 6184                && let Some(panel) = dock.read(cx).active_panel()
 6185                && let Some(pane) = panel.pane(cx)
 6186                && let Some(item) = pane.read(cx).active_item()
 6187            {
 6188                active_item = Some(item);
 6189                panel_id = panel.remote_id();
 6190                break;
 6191            }
 6192        }
 6193
 6194        if active_item.is_none() {
 6195            active_item = self.active_pane().read(cx).active_item();
 6196        }
 6197        (active_item, panel_id)
 6198    }
 6199
 6200    fn update_followers(
 6201        &self,
 6202        project_only: bool,
 6203        update: proto::update_followers::Variant,
 6204        _: &mut Window,
 6205        cx: &mut App,
 6206    ) -> Option<()> {
 6207        // If this update only applies to for followers in the current project,
 6208        // then skip it unless this project is shared. If it applies to all
 6209        // followers, regardless of project, then set `project_id` to none,
 6210        // indicating that it goes to all followers.
 6211        let project_id = if project_only {
 6212            Some(self.project.read(cx).remote_id()?)
 6213        } else {
 6214            None
 6215        };
 6216        self.app_state().workspace_store.update(cx, |store, cx| {
 6217            store.update_followers(project_id, update, cx)
 6218        })
 6219    }
 6220
 6221    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 6222        self.follower_states.iter().find_map(|(leader_id, state)| {
 6223            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 6224                Some(*leader_id)
 6225            } else {
 6226                None
 6227            }
 6228        })
 6229    }
 6230
 6231    fn leader_updated(
 6232        &mut self,
 6233        leader_id: impl Into<CollaboratorId>,
 6234        window: &mut Window,
 6235        cx: &mut Context<Self>,
 6236    ) -> Option<Box<dyn ItemHandle>> {
 6237        cx.notify();
 6238
 6239        let leader_id = leader_id.into();
 6240        let (panel_id, item) = match leader_id {
 6241            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 6242            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 6243        };
 6244
 6245        let state = self.follower_states.get(&leader_id)?;
 6246        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 6247        let pane;
 6248        if let Some(panel_id) = panel_id {
 6249            pane = self
 6250                .activate_panel_for_proto_id(panel_id, window, cx)?
 6251                .pane(cx)?;
 6252            let state = self.follower_states.get_mut(&leader_id)?;
 6253            state.dock_pane = Some(pane.clone());
 6254        } else {
 6255            pane = state.center_pane.clone();
 6256            let state = self.follower_states.get_mut(&leader_id)?;
 6257            if let Some(dock_pane) = state.dock_pane.take() {
 6258                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 6259            }
 6260        }
 6261
 6262        pane.update(cx, |pane, cx| {
 6263            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 6264            if let Some(index) = pane.index_for_item(item.as_ref()) {
 6265                pane.activate_item(index, false, false, window, cx);
 6266            } else {
 6267                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 6268            }
 6269
 6270            if focus_active_item {
 6271                pane.focus_active_item(window, cx)
 6272            }
 6273        });
 6274
 6275        Some(item)
 6276    }
 6277
 6278    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 6279        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 6280        let active_view_id = state.active_view_id?;
 6281        Some(
 6282            state
 6283                .items_by_leader_view_id
 6284                .get(&active_view_id)?
 6285                .view
 6286                .boxed_clone(),
 6287        )
 6288    }
 6289
 6290    fn active_item_for_peer(
 6291        &self,
 6292        peer_id: PeerId,
 6293        window: &mut Window,
 6294        cx: &mut Context<Self>,
 6295    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 6296        let call = self.active_call()?;
 6297        let participant = call.remote_participant_for_peer_id(peer_id, cx)?;
 6298        let leader_in_this_app;
 6299        let leader_in_this_project;
 6300        match participant.location {
 6301            ParticipantLocation::SharedProject { project_id } => {
 6302                leader_in_this_app = true;
 6303                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 6304            }
 6305            ParticipantLocation::UnsharedProject => {
 6306                leader_in_this_app = true;
 6307                leader_in_this_project = false;
 6308            }
 6309            ParticipantLocation::External => {
 6310                leader_in_this_app = false;
 6311                leader_in_this_project = false;
 6312            }
 6313        };
 6314        let state = self.follower_states.get(&peer_id.into())?;
 6315        let mut item_to_activate = None;
 6316        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 6317            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 6318                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 6319            {
 6320                item_to_activate = Some((item.location, item.view.boxed_clone()));
 6321            }
 6322        } else if let Some(shared_screen) =
 6323            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 6324        {
 6325            item_to_activate = Some((None, Box::new(shared_screen)));
 6326        }
 6327        item_to_activate
 6328    }
 6329
 6330    fn shared_screen_for_peer(
 6331        &self,
 6332        peer_id: PeerId,
 6333        pane: &Entity<Pane>,
 6334        window: &mut Window,
 6335        cx: &mut App,
 6336    ) -> Option<Entity<SharedScreen>> {
 6337        self.active_call()?
 6338            .create_shared_screen(peer_id, pane, window, cx)
 6339    }
 6340
 6341    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6342        if window.is_window_active() {
 6343            self.update_active_view_for_followers(window, cx);
 6344
 6345            if let Some(database_id) = self.database_id {
 6346                let db = WorkspaceDb::global(cx);
 6347                cx.background_spawn(async move { db.update_timestamp(database_id).await })
 6348                    .detach();
 6349            }
 6350        } else {
 6351            for pane in &self.panes {
 6352                pane.update(cx, |pane, cx| {
 6353                    if let Some(item) = pane.active_item() {
 6354                        item.workspace_deactivated(window, cx);
 6355                    }
 6356                    for item in pane.items() {
 6357                        if matches!(
 6358                            item.workspace_settings(cx).autosave,
 6359                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 6360                        ) {
 6361                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 6362                                .detach_and_log_err(cx);
 6363                        }
 6364                    }
 6365                });
 6366            }
 6367        }
 6368    }
 6369
 6370    pub fn active_call(&self) -> Option<&dyn AnyActiveCall> {
 6371        self.active_call.as_ref().map(|(call, _)| &*call.0)
 6372    }
 6373
 6374    pub fn active_global_call(&self) -> Option<GlobalAnyActiveCall> {
 6375        self.active_call.as_ref().map(|(call, _)| call.clone())
 6376    }
 6377
 6378    fn on_active_call_event(
 6379        &mut self,
 6380        event: &ActiveCallEvent,
 6381        window: &mut Window,
 6382        cx: &mut Context<Self>,
 6383    ) {
 6384        match event {
 6385            ActiveCallEvent::ParticipantLocationChanged { participant_id }
 6386            | ActiveCallEvent::RemoteVideoTracksChanged { participant_id } => {
 6387                self.leader_updated(participant_id, window, cx);
 6388            }
 6389        }
 6390    }
 6391
 6392    pub fn database_id(&self) -> Option<WorkspaceId> {
 6393        self.database_id
 6394    }
 6395
 6396    #[cfg(any(test, feature = "test-support"))]
 6397    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 6398        self.database_id = Some(id);
 6399    }
 6400
 6401    pub fn session_id(&self) -> Option<String> {
 6402        self.session_id.clone()
 6403    }
 6404
 6405    fn save_window_bounds(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6406        let Some(display) = window.display(cx) else {
 6407            return Task::ready(());
 6408        };
 6409        let Ok(display_uuid) = display.uuid() else {
 6410            return Task::ready(());
 6411        };
 6412
 6413        let window_bounds = window.inner_window_bounds();
 6414        let database_id = self.database_id;
 6415        let has_paths = !self.root_paths(cx).is_empty();
 6416        let db = WorkspaceDb::global(cx);
 6417        let kvp = db::kvp::KeyValueStore::global(cx);
 6418
 6419        cx.background_executor().spawn(async move {
 6420            if !has_paths {
 6421                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6422                    .await
 6423                    .log_err();
 6424            }
 6425            if let Some(database_id) = database_id {
 6426                db.set_window_open_status(
 6427                    database_id,
 6428                    SerializedWindowBounds(window_bounds),
 6429                    display_uuid,
 6430                )
 6431                .await
 6432                .log_err();
 6433            } else {
 6434                persistence::write_default_window_bounds(&kvp, window_bounds, display_uuid)
 6435                    .await
 6436                    .log_err();
 6437            }
 6438        })
 6439    }
 6440
 6441    /// Bypass the 200ms serialization throttle and write workspace state to
 6442    /// the DB immediately. Returns a task the caller can await to ensure the
 6443    /// write completes. Used by the quit handler so the most recent state
 6444    /// isn't lost to a pending throttle timer when the process exits.
 6445    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6446        self._schedule_serialize_workspace.take();
 6447        self._serialize_workspace_task.take();
 6448        self.bounds_save_task_queued.take();
 6449
 6450        let bounds_task = self.save_window_bounds(window, cx);
 6451        let serialize_task = self.serialize_workspace_internal(window, cx);
 6452        cx.spawn(async move |_| {
 6453            bounds_task.await;
 6454            serialize_task.await;
 6455        })
 6456    }
 6457
 6458    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 6459        let project = self.project().read(cx);
 6460        project
 6461            .visible_worktrees(cx)
 6462            .map(|worktree| worktree.read(cx).abs_path())
 6463            .collect::<Vec<_>>()
 6464    }
 6465
 6466    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 6467        match member {
 6468            Member::Axis(PaneAxis { members, .. }) => {
 6469                for child in members.iter() {
 6470                    self.remove_panes(child.clone(), window, cx)
 6471                }
 6472            }
 6473            Member::Pane(pane) => {
 6474                self.force_remove_pane(&pane, &None, window, cx);
 6475            }
 6476        }
 6477    }
 6478
 6479    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 6480        self.session_id.take();
 6481        self.serialize_workspace_internal(window, cx)
 6482    }
 6483
 6484    fn force_remove_pane(
 6485        &mut self,
 6486        pane: &Entity<Pane>,
 6487        focus_on: &Option<Entity<Pane>>,
 6488        window: &mut Window,
 6489        cx: &mut Context<Workspace>,
 6490    ) {
 6491        self.panes.retain(|p| p != pane);
 6492        if let Some(focus_on) = focus_on {
 6493            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6494        } else if self.active_pane() == pane {
 6495            self.panes
 6496                .last()
 6497                .unwrap()
 6498                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6499        }
 6500        if self.last_active_center_pane == Some(pane.downgrade()) {
 6501            self.last_active_center_pane = None;
 6502        }
 6503        cx.notify();
 6504    }
 6505
 6506    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 6507        if self._schedule_serialize_workspace.is_none() {
 6508            self._schedule_serialize_workspace =
 6509                Some(cx.spawn_in(window, async move |this, cx| {
 6510                    cx.background_executor()
 6511                        .timer(SERIALIZATION_THROTTLE_TIME)
 6512                        .await;
 6513                    this.update_in(cx, |this, window, cx| {
 6514                        this._serialize_workspace_task =
 6515                            Some(this.serialize_workspace_internal(window, cx));
 6516                        this._schedule_serialize_workspace.take();
 6517                    })
 6518                    .log_err();
 6519                }));
 6520        }
 6521    }
 6522
 6523    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 6524        let Some(database_id) = self.database_id() else {
 6525            return Task::ready(());
 6526        };
 6527
 6528        fn serialize_pane_handle(
 6529            pane_handle: &Entity<Pane>,
 6530            window: &mut Window,
 6531            cx: &mut App,
 6532        ) -> SerializedPane {
 6533            let (items, active, pinned_count) = {
 6534                let pane = pane_handle.read(cx);
 6535                let active_item_id = pane.active_item().map(|item| item.item_id());
 6536                (
 6537                    pane.items()
 6538                        .filter_map(|handle| {
 6539                            let handle = handle.to_serializable_item_handle(cx)?;
 6540
 6541                            Some(SerializedItem {
 6542                                kind: Arc::from(handle.serialized_item_kind()),
 6543                                item_id: handle.item_id().as_u64(),
 6544                                active: Some(handle.item_id()) == active_item_id,
 6545                                preview: pane.is_active_preview_item(handle.item_id()),
 6546                            })
 6547                        })
 6548                        .collect::<Vec<_>>(),
 6549                    pane.has_focus(window, cx),
 6550                    pane.pinned_count(),
 6551                )
 6552            };
 6553
 6554            SerializedPane::new(items, active, pinned_count)
 6555        }
 6556
 6557        fn build_serialized_pane_group(
 6558            pane_group: &Member,
 6559            window: &mut Window,
 6560            cx: &mut App,
 6561        ) -> SerializedPaneGroup {
 6562            match pane_group {
 6563                Member::Axis(PaneAxis {
 6564                    axis,
 6565                    members,
 6566                    flexes,
 6567                    bounding_boxes: _,
 6568                }) => SerializedPaneGroup::Group {
 6569                    axis: SerializedAxis(*axis),
 6570                    children: members
 6571                        .iter()
 6572                        .map(|member| build_serialized_pane_group(member, window, cx))
 6573                        .collect::<Vec<_>>(),
 6574                    flexes: Some(flexes.lock().clone()),
 6575                },
 6576                Member::Pane(pane_handle) => {
 6577                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 6578                }
 6579            }
 6580        }
 6581
 6582        fn build_serialized_docks(
 6583            this: &Workspace,
 6584            window: &mut Window,
 6585            cx: &mut App,
 6586        ) -> DockStructure {
 6587            this.capture_dock_state(window, cx)
 6588        }
 6589
 6590        match self.workspace_location(cx) {
 6591            WorkspaceLocation::Location(location, paths) => {
 6592                let breakpoints = self.project.update(cx, |project, cx| {
 6593                    project
 6594                        .breakpoint_store()
 6595                        .read(cx)
 6596                        .all_source_breakpoints(cx)
 6597                });
 6598                let user_toolchains = self
 6599                    .project
 6600                    .read(cx)
 6601                    .user_toolchains(cx)
 6602                    .unwrap_or_default();
 6603
 6604                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6605                let docks = build_serialized_docks(self, window, cx);
 6606                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6607
 6608                let serialized_workspace = SerializedWorkspace {
 6609                    id: database_id,
 6610                    location,
 6611                    paths,
 6612                    center_group,
 6613                    window_bounds,
 6614                    display: Default::default(),
 6615                    docks,
 6616                    centered_layout: self.centered_layout,
 6617                    session_id: self.session_id.clone(),
 6618                    breakpoints,
 6619                    window_id: Some(window.window_handle().window_id().as_u64()),
 6620                    user_toolchains,
 6621                };
 6622
 6623                let db = WorkspaceDb::global(cx);
 6624                window.spawn(cx, async move |_| {
 6625                    db.save_workspace(serialized_workspace).await;
 6626                })
 6627            }
 6628            WorkspaceLocation::DetachFromSession => {
 6629                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6630                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6631                // Save dock state for empty local workspaces
 6632                let docks = build_serialized_docks(self, window, cx);
 6633                let db = WorkspaceDb::global(cx);
 6634                let kvp = db::kvp::KeyValueStore::global(cx);
 6635                window.spawn(cx, async move |_| {
 6636                    db.set_window_open_status(
 6637                        database_id,
 6638                        window_bounds,
 6639                        display.unwrap_or_default(),
 6640                    )
 6641                    .await
 6642                    .log_err();
 6643                    db.set_session_id(database_id, None).await.log_err();
 6644                    persistence::write_default_dock_state(&kvp, docks)
 6645                        .await
 6646                        .log_err();
 6647                })
 6648            }
 6649            WorkspaceLocation::None => {
 6650                // Save dock state for empty non-local workspaces
 6651                let docks = build_serialized_docks(self, window, cx);
 6652                let kvp = db::kvp::KeyValueStore::global(cx);
 6653                window.spawn(cx, async move |_| {
 6654                    persistence::write_default_dock_state(&kvp, docks)
 6655                        .await
 6656                        .log_err();
 6657                })
 6658            }
 6659        }
 6660    }
 6661
 6662    fn has_any_items_open(&self, cx: &App) -> bool {
 6663        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6664    }
 6665
 6666    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6667        let paths = PathList::new(&self.root_paths(cx));
 6668        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6669            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6670        } else if self.project.read(cx).is_local() {
 6671            if !paths.is_empty() || self.has_any_items_open(cx) {
 6672                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6673            } else {
 6674                WorkspaceLocation::DetachFromSession
 6675            }
 6676        } else {
 6677            WorkspaceLocation::None
 6678        }
 6679    }
 6680
 6681    fn update_history(&self, cx: &mut App) {
 6682        let Some(id) = self.database_id() else {
 6683            return;
 6684        };
 6685        if !self.project.read(cx).is_local() {
 6686            return;
 6687        }
 6688        if let Some(manager) = HistoryManager::global(cx) {
 6689            let paths = PathList::new(&self.root_paths(cx));
 6690            manager.update(cx, |this, cx| {
 6691                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6692            });
 6693        }
 6694    }
 6695
 6696    async fn serialize_items(
 6697        this: &WeakEntity<Self>,
 6698        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6699        cx: &mut AsyncWindowContext,
 6700    ) -> Result<()> {
 6701        const CHUNK_SIZE: usize = 200;
 6702
 6703        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6704
 6705        while let Some(items_received) = serializable_items.next().await {
 6706            let unique_items =
 6707                items_received
 6708                    .into_iter()
 6709                    .fold(HashMap::default(), |mut acc, item| {
 6710                        acc.entry(item.item_id()).or_insert(item);
 6711                        acc
 6712                    });
 6713
 6714            // We use into_iter() here so that the references to the items are moved into
 6715            // the tasks and not kept alive while we're sleeping.
 6716            for (_, item) in unique_items.into_iter() {
 6717                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6718                    item.serialize(workspace, false, window, cx)
 6719                }) {
 6720                    cx.background_spawn(async move { task.await.log_err() })
 6721                        .detach();
 6722                }
 6723            }
 6724
 6725            cx.background_executor()
 6726                .timer(SERIALIZATION_THROTTLE_TIME)
 6727                .await;
 6728        }
 6729
 6730        Ok(())
 6731    }
 6732
 6733    pub(crate) fn enqueue_item_serialization(
 6734        &mut self,
 6735        item: Box<dyn SerializableItemHandle>,
 6736    ) -> Result<()> {
 6737        self.serializable_items_tx
 6738            .unbounded_send(item)
 6739            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6740    }
 6741
 6742    pub(crate) fn load_workspace(
 6743        serialized_workspace: SerializedWorkspace,
 6744        paths_to_open: Vec<Option<ProjectPath>>,
 6745        window: &mut Window,
 6746        cx: &mut Context<Workspace>,
 6747    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6748        cx.spawn_in(window, async move |workspace, cx| {
 6749            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6750
 6751            let mut center_group = None;
 6752            let mut center_items = None;
 6753
 6754            // Traverse the splits tree and add to things
 6755            if let Some((group, active_pane, items)) = serialized_workspace
 6756                .center_group
 6757                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6758                .await
 6759            {
 6760                center_items = Some(items);
 6761                center_group = Some((group, active_pane))
 6762            }
 6763
 6764            let mut items_by_project_path = HashMap::default();
 6765            let mut item_ids_by_kind = HashMap::default();
 6766            let mut all_deserialized_items = Vec::default();
 6767            cx.update(|_, cx| {
 6768                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6769                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6770                        item_ids_by_kind
 6771                            .entry(serializable_item_handle.serialized_item_kind())
 6772                            .or_insert(Vec::new())
 6773                            .push(item.item_id().as_u64() as ItemId);
 6774                    }
 6775
 6776                    if let Some(project_path) = item.project_path(cx) {
 6777                        items_by_project_path.insert(project_path, item.clone());
 6778                    }
 6779                    all_deserialized_items.push(item);
 6780                }
 6781            })?;
 6782
 6783            let opened_items = paths_to_open
 6784                .into_iter()
 6785                .map(|path_to_open| {
 6786                    path_to_open
 6787                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6788                })
 6789                .collect::<Vec<_>>();
 6790
 6791            // Remove old panes from workspace panes list
 6792            workspace.update_in(cx, |workspace, window, cx| {
 6793                if let Some((center_group, active_pane)) = center_group {
 6794                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6795
 6796                    // Swap workspace center group
 6797                    workspace.center = PaneGroup::with_root(center_group);
 6798                    workspace.center.set_is_center(true);
 6799                    workspace.center.mark_positions(cx);
 6800
 6801                    if let Some(active_pane) = active_pane {
 6802                        workspace.set_active_pane(&active_pane, window, cx);
 6803                        cx.focus_self(window);
 6804                    } else {
 6805                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6806                    }
 6807                }
 6808
 6809                let docks = serialized_workspace.docks;
 6810
 6811                for (dock, serialized_dock) in [
 6812                    (&mut workspace.right_dock, docks.right),
 6813                    (&mut workspace.left_dock, docks.left),
 6814                    (&mut workspace.bottom_dock, docks.bottom),
 6815                ]
 6816                .iter_mut()
 6817                {
 6818                    dock.update(cx, |dock, cx| {
 6819                        dock.serialized_dock = Some(serialized_dock.clone());
 6820                        dock.restore_state(window, cx);
 6821                    });
 6822                }
 6823
 6824                cx.notify();
 6825            })?;
 6826
 6827            let _ = project
 6828                .update(cx, |project, cx| {
 6829                    project
 6830                        .breakpoint_store()
 6831                        .update(cx, |breakpoint_store, cx| {
 6832                            breakpoint_store
 6833                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6834                        })
 6835                })
 6836                .await;
 6837
 6838            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6839            // after loading the items, we might have different items and in order to avoid
 6840            // the database filling up, we delete items that haven't been loaded now.
 6841            //
 6842            // The items that have been loaded, have been saved after they've been added to the workspace.
 6843            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6844                item_ids_by_kind
 6845                    .into_iter()
 6846                    .map(|(item_kind, loaded_items)| {
 6847                        SerializableItemRegistry::cleanup(
 6848                            item_kind,
 6849                            serialized_workspace.id,
 6850                            loaded_items,
 6851                            window,
 6852                            cx,
 6853                        )
 6854                        .log_err()
 6855                    })
 6856                    .collect::<Vec<_>>()
 6857            })?;
 6858
 6859            futures::future::join_all(clean_up_tasks).await;
 6860
 6861            workspace
 6862                .update_in(cx, |workspace, window, cx| {
 6863                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6864                    workspace.serialize_workspace_internal(window, cx).detach();
 6865
 6866                    // Ensure that we mark the window as edited if we did load dirty items
 6867                    workspace.update_window_edited(window, cx);
 6868                })
 6869                .ok();
 6870
 6871            Ok(opened_items)
 6872        })
 6873    }
 6874
 6875    pub fn key_context(&self, cx: &App) -> KeyContext {
 6876        let mut context = KeyContext::new_with_defaults();
 6877        context.add("Workspace");
 6878        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 6879        if let Some(status) = self
 6880            .debugger_provider
 6881            .as_ref()
 6882            .and_then(|provider| provider.active_thread_state(cx))
 6883        {
 6884            match status {
 6885                ThreadStatus::Running | ThreadStatus::Stepping => {
 6886                    context.add("debugger_running");
 6887                }
 6888                ThreadStatus::Stopped => context.add("debugger_stopped"),
 6889                ThreadStatus::Exited | ThreadStatus::Ended => {}
 6890            }
 6891        }
 6892
 6893        if self.left_dock.read(cx).is_open() {
 6894            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 6895                context.set("left_dock", active_panel.panel_key());
 6896            }
 6897        }
 6898
 6899        if self.right_dock.read(cx).is_open() {
 6900            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 6901                context.set("right_dock", active_panel.panel_key());
 6902            }
 6903        }
 6904
 6905        if self.bottom_dock.read(cx).is_open() {
 6906            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 6907                context.set("bottom_dock", active_panel.panel_key());
 6908            }
 6909        }
 6910
 6911        context
 6912    }
 6913
 6914    /// Multiworkspace uses this to add workspace action handling to itself
 6915    pub fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6916        self.add_workspace_actions_listeners(div, window, cx)
 6917            .on_action(cx.listener(
 6918                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6919                    for action in &action_sequence.0 {
 6920                        window.dispatch_action(action.boxed_clone(), cx);
 6921                    }
 6922                },
 6923            ))
 6924            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6925            .on_action(cx.listener(Self::close_all_items_and_panes))
 6926            .on_action(cx.listener(Self::close_item_in_all_panes))
 6927            .on_action(cx.listener(Self::save_all))
 6928            .on_action(cx.listener(Self::send_keystrokes))
 6929            .on_action(cx.listener(Self::add_folder_to_project))
 6930            .on_action(cx.listener(Self::follow_next_collaborator))
 6931            .on_action(cx.listener(Self::activate_pane_at_index))
 6932            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6933            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6934            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6935            .on_action(cx.listener(Self::toggle_theme_mode))
 6936            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6937                let pane = workspace.active_pane().clone();
 6938                workspace.unfollow_in_pane(&pane, window, cx);
 6939            }))
 6940            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6941                workspace
 6942                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6943                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6944            }))
 6945            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6946                workspace
 6947                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6948                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6949            }))
 6950            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6951                workspace
 6952                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6953                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6954            }))
 6955            .on_action(
 6956                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6957                    workspace.activate_previous_pane(window, cx)
 6958                }),
 6959            )
 6960            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6961                workspace.activate_next_pane(window, cx)
 6962            }))
 6963            .on_action(cx.listener(|workspace, _: &ActivateLastPane, window, cx| {
 6964                workspace.activate_last_pane(window, cx)
 6965            }))
 6966            .on_action(
 6967                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6968                    workspace.activate_next_window(cx)
 6969                }),
 6970            )
 6971            .on_action(
 6972                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6973                    workspace.activate_previous_window(cx)
 6974                }),
 6975            )
 6976            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6977                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6978            }))
 6979            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6980                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6981            }))
 6982            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6983                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6984            }))
 6985            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6986                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6987            }))
 6988            .on_action(cx.listener(
 6989                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6990                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6991                },
 6992            ))
 6993            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6994                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6995            }))
 6996            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6997                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6998            }))
 6999            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 7000                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 7001            }))
 7002            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 7003                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 7004            }))
 7005            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 7006                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 7007                    SplitDirection::Down,
 7008                    SplitDirection::Up,
 7009                    SplitDirection::Right,
 7010                    SplitDirection::Left,
 7011                ];
 7012                for dir in DIRECTION_PRIORITY {
 7013                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 7014                        workspace.swap_pane_in_direction(dir, cx);
 7015                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 7016                        break;
 7017                    }
 7018                }
 7019            }))
 7020            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 7021                workspace.move_pane_to_border(SplitDirection::Left, cx)
 7022            }))
 7023            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 7024                workspace.move_pane_to_border(SplitDirection::Right, cx)
 7025            }))
 7026            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 7027                workspace.move_pane_to_border(SplitDirection::Up, cx)
 7028            }))
 7029            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 7030                workspace.move_pane_to_border(SplitDirection::Down, cx)
 7031            }))
 7032            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 7033                this.toggle_dock(DockPosition::Left, window, cx);
 7034            }))
 7035            .on_action(cx.listener(
 7036                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 7037                    workspace.toggle_dock(DockPosition::Right, window, cx);
 7038                },
 7039            ))
 7040            .on_action(cx.listener(
 7041                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 7042                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 7043                },
 7044            ))
 7045            .on_action(cx.listener(
 7046                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 7047                    if !workspace.close_active_dock(window, cx) {
 7048                        cx.propagate();
 7049                    }
 7050                },
 7051            ))
 7052            .on_action(
 7053                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 7054                    workspace.close_all_docks(window, cx);
 7055                }),
 7056            )
 7057            .on_action(cx.listener(Self::toggle_all_docks))
 7058            .on_action(cx.listener(
 7059                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 7060                    workspace.clear_all_notifications(cx);
 7061                },
 7062            ))
 7063            .on_action(cx.listener(
 7064                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 7065                    workspace.clear_navigation_history(window, cx);
 7066                },
 7067            ))
 7068            .on_action(cx.listener(
 7069                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 7070                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 7071                        workspace.suppress_notification(&notification_id, cx);
 7072                    }
 7073                },
 7074            ))
 7075            .on_action(cx.listener(
 7076                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 7077                    workspace.show_worktree_trust_security_modal(true, window, cx);
 7078                },
 7079            ))
 7080            .on_action(
 7081                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 7082                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 7083                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 7084                            trusted_worktrees.clear_trusted_paths()
 7085                        });
 7086                        let db = WorkspaceDb::global(cx);
 7087                        cx.spawn(async move |_, cx| {
 7088                            if db.clear_trusted_worktrees().await.log_err().is_some() {
 7089                                cx.update(|cx| reload(cx));
 7090                            }
 7091                        })
 7092                        .detach();
 7093                    }
 7094                }),
 7095            )
 7096            .on_action(cx.listener(
 7097                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 7098                    workspace.reopen_closed_item(window, cx).detach();
 7099                },
 7100            ))
 7101            .on_action(cx.listener(
 7102                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 7103                    for dock in workspace.all_docks() {
 7104                        if dock.focus_handle(cx).contains_focused(window, cx) {
 7105                            let panel = dock.read(cx).active_panel().cloned();
 7106                            if let Some(panel) = panel {
 7107                                dock.update(cx, |dock, cx| {
 7108                                    dock.set_panel_size_state(
 7109                                        panel.as_ref(),
 7110                                        dock::PanelSizeState::default(),
 7111                                        cx,
 7112                                    );
 7113                                });
 7114                            }
 7115                            return;
 7116                        }
 7117                    }
 7118                },
 7119            ))
 7120            .on_action(cx.listener(
 7121                |workspace: &mut Workspace, _: &ResetOpenDocksSize, _window, cx| {
 7122                    for dock in workspace.all_docks() {
 7123                        let panel = dock.read(cx).visible_panel().cloned();
 7124                        if let Some(panel) = panel {
 7125                            dock.update(cx, |dock, cx| {
 7126                                dock.set_panel_size_state(
 7127                                    panel.as_ref(),
 7128                                    dock::PanelSizeState::default(),
 7129                                    cx,
 7130                                );
 7131                            });
 7132                        }
 7133                    }
 7134                },
 7135            ))
 7136            .on_action(cx.listener(
 7137                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 7138                    adjust_active_dock_size_by_px(
 7139                        px_with_ui_font_fallback(act.px, cx),
 7140                        workspace,
 7141                        window,
 7142                        cx,
 7143                    );
 7144                },
 7145            ))
 7146            .on_action(cx.listener(
 7147                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 7148                    adjust_active_dock_size_by_px(
 7149                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7150                        workspace,
 7151                        window,
 7152                        cx,
 7153                    );
 7154                },
 7155            ))
 7156            .on_action(cx.listener(
 7157                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 7158                    adjust_open_docks_size_by_px(
 7159                        px_with_ui_font_fallback(act.px, cx),
 7160                        workspace,
 7161                        window,
 7162                        cx,
 7163                    );
 7164                },
 7165            ))
 7166            .on_action(cx.listener(
 7167                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 7168                    adjust_open_docks_size_by_px(
 7169                        px_with_ui_font_fallback(act.px, cx) * -1.,
 7170                        workspace,
 7171                        window,
 7172                        cx,
 7173                    );
 7174                },
 7175            ))
 7176            .on_action(cx.listener(Workspace::toggle_centered_layout))
 7177            .on_action(cx.listener(
 7178                |workspace: &mut Workspace, action: &pane::ActivateNextItem, window, cx| {
 7179                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7180                        let dock = active_dock.read(cx);
 7181                        if let Some(active_panel) = dock.active_panel() {
 7182                            if active_panel.pane(cx).is_none() {
 7183                                let mut recent_pane: Option<Entity<Pane>> = None;
 7184                                let mut recent_timestamp = 0;
 7185                                for pane_handle in workspace.panes() {
 7186                                    let pane = pane_handle.read(cx);
 7187                                    for entry in pane.activation_history() {
 7188                                        if entry.timestamp > recent_timestamp {
 7189                                            recent_timestamp = entry.timestamp;
 7190                                            recent_pane = Some(pane_handle.clone());
 7191                                        }
 7192                                    }
 7193                                }
 7194
 7195                                if let Some(pane) = recent_pane {
 7196                                    let wrap_around = action.wrap_around;
 7197                                    pane.update(cx, |pane, cx| {
 7198                                        let current_index = pane.active_item_index();
 7199                                        let items_len = pane.items_len();
 7200                                        if items_len > 0 {
 7201                                            let next_index = if current_index + 1 < items_len {
 7202                                                current_index + 1
 7203                                            } else if wrap_around {
 7204                                                0
 7205                                            } else {
 7206                                                return;
 7207                                            };
 7208                                            pane.activate_item(
 7209                                                next_index, false, false, window, cx,
 7210                                            );
 7211                                        }
 7212                                    });
 7213                                    return;
 7214                                }
 7215                            }
 7216                        }
 7217                    }
 7218                    cx.propagate();
 7219                },
 7220            ))
 7221            .on_action(cx.listener(
 7222                |workspace: &mut Workspace, action: &pane::ActivatePreviousItem, window, cx| {
 7223                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7224                        let dock = active_dock.read(cx);
 7225                        if let Some(active_panel) = dock.active_panel() {
 7226                            if active_panel.pane(cx).is_none() {
 7227                                let mut recent_pane: Option<Entity<Pane>> = None;
 7228                                let mut recent_timestamp = 0;
 7229                                for pane_handle in workspace.panes() {
 7230                                    let pane = pane_handle.read(cx);
 7231                                    for entry in pane.activation_history() {
 7232                                        if entry.timestamp > recent_timestamp {
 7233                                            recent_timestamp = entry.timestamp;
 7234                                            recent_pane = Some(pane_handle.clone());
 7235                                        }
 7236                                    }
 7237                                }
 7238
 7239                                if let Some(pane) = recent_pane {
 7240                                    let wrap_around = action.wrap_around;
 7241                                    pane.update(cx, |pane, cx| {
 7242                                        let current_index = pane.active_item_index();
 7243                                        let items_len = pane.items_len();
 7244                                        if items_len > 0 {
 7245                                            let prev_index = if current_index > 0 {
 7246                                                current_index - 1
 7247                                            } else if wrap_around {
 7248                                                items_len.saturating_sub(1)
 7249                                            } else {
 7250                                                return;
 7251                                            };
 7252                                            pane.activate_item(
 7253                                                prev_index, false, false, window, cx,
 7254                                            );
 7255                                        }
 7256                                    });
 7257                                    return;
 7258                                }
 7259                            }
 7260                        }
 7261                    }
 7262                    cx.propagate();
 7263                },
 7264            ))
 7265            .on_action(cx.listener(
 7266                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 7267                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 7268                        let dock = active_dock.read(cx);
 7269                        if let Some(active_panel) = dock.active_panel() {
 7270                            if active_panel.pane(cx).is_none() {
 7271                                let active_pane = workspace.active_pane().clone();
 7272                                active_pane.update(cx, |pane, cx| {
 7273                                    pane.close_active_item(action, window, cx)
 7274                                        .detach_and_log_err(cx);
 7275                                });
 7276                                return;
 7277                            }
 7278                        }
 7279                    }
 7280                    cx.propagate();
 7281                },
 7282            ))
 7283            .on_action(
 7284                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 7285                    let pane = workspace.active_pane().clone();
 7286                    if let Some(item) = pane.read(cx).active_item() {
 7287                        item.toggle_read_only(window, cx);
 7288                    }
 7289                }),
 7290            )
 7291            .on_action(cx.listener(|workspace, _: &FocusCenterPane, window, cx| {
 7292                workspace.focus_center_pane(window, cx);
 7293            }))
 7294            .on_action(cx.listener(Workspace::cancel))
 7295    }
 7296
 7297    #[cfg(any(test, feature = "test-support"))]
 7298    pub fn set_random_database_id(&mut self) {
 7299        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 7300    }
 7301
 7302    #[cfg(any(test, feature = "test-support"))]
 7303    pub(crate) fn test_new(
 7304        project: Entity<Project>,
 7305        window: &mut Window,
 7306        cx: &mut Context<Self>,
 7307    ) -> Self {
 7308        use node_runtime::NodeRuntime;
 7309        use session::Session;
 7310
 7311        let client = project.read(cx).client();
 7312        let user_store = project.read(cx).user_store();
 7313        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 7314        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 7315        window.activate_window();
 7316        let app_state = Arc::new(AppState {
 7317            languages: project.read(cx).languages().clone(),
 7318            workspace_store,
 7319            client,
 7320            user_store,
 7321            fs: project.read(cx).fs().clone(),
 7322            build_window_options: |_, _| Default::default(),
 7323            node_runtime: NodeRuntime::unavailable(),
 7324            session,
 7325        });
 7326        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 7327        workspace
 7328            .active_pane
 7329            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 7330        workspace
 7331    }
 7332
 7333    pub fn register_action<A: Action>(
 7334        &mut self,
 7335        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 7336    ) -> &mut Self {
 7337        let callback = Arc::new(callback);
 7338
 7339        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 7340            let callback = callback.clone();
 7341            div.on_action(cx.listener(move |workspace, event, window, cx| {
 7342                (callback)(workspace, event, window, cx)
 7343            }))
 7344        }));
 7345        self
 7346    }
 7347    pub fn register_action_renderer(
 7348        &mut self,
 7349        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 7350    ) -> &mut Self {
 7351        self.workspace_actions.push(Box::new(callback));
 7352        self
 7353    }
 7354
 7355    fn add_workspace_actions_listeners(
 7356        &self,
 7357        mut div: Div,
 7358        window: &mut Window,
 7359        cx: &mut Context<Self>,
 7360    ) -> Div {
 7361        for action in self.workspace_actions.iter() {
 7362            div = (action)(div, self, window, cx)
 7363        }
 7364        div
 7365    }
 7366
 7367    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 7368        self.modal_layer.read(cx).has_active_modal()
 7369    }
 7370
 7371    pub fn is_active_modal_command_palette(&self, cx: &mut App) -> bool {
 7372        self.modal_layer
 7373            .read(cx)
 7374            .is_active_modal_command_palette(cx)
 7375    }
 7376
 7377    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 7378        self.modal_layer.read(cx).active_modal()
 7379    }
 7380
 7381    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 7382    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 7383    /// If no modal is active, the new modal will be shown.
 7384    ///
 7385    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 7386    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 7387    /// will not be shown.
 7388    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 7389    where
 7390        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 7391    {
 7392        self.modal_layer.update(cx, |modal_layer, cx| {
 7393            modal_layer.toggle_modal(window, cx, build)
 7394        })
 7395    }
 7396
 7397    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 7398        self.modal_layer
 7399            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 7400    }
 7401
 7402    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 7403        self.toast_layer
 7404            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 7405    }
 7406
 7407    pub fn toggle_centered_layout(
 7408        &mut self,
 7409        _: &ToggleCenteredLayout,
 7410        _: &mut Window,
 7411        cx: &mut Context<Self>,
 7412    ) {
 7413        self.centered_layout = !self.centered_layout;
 7414        if let Some(database_id) = self.database_id() {
 7415            let db = WorkspaceDb::global(cx);
 7416            let centered_layout = self.centered_layout;
 7417            cx.background_spawn(async move {
 7418                db.set_centered_layout(database_id, centered_layout).await
 7419            })
 7420            .detach_and_log_err(cx);
 7421        }
 7422        cx.notify();
 7423    }
 7424
 7425    fn adjust_padding(padding: Option<f32>) -> f32 {
 7426        padding
 7427            .unwrap_or(CenteredPaddingSettings::default().0)
 7428            .clamp(
 7429                CenteredPaddingSettings::MIN_PADDING,
 7430                CenteredPaddingSettings::MAX_PADDING,
 7431            )
 7432    }
 7433
 7434    fn render_dock(
 7435        &self,
 7436        position: DockPosition,
 7437        dock: &Entity<Dock>,
 7438        window: &mut Window,
 7439        cx: &mut App,
 7440    ) -> Option<Div> {
 7441        if self.zoomed_position == Some(position) {
 7442            return None;
 7443        }
 7444
 7445        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 7446            let pane = panel.pane(cx)?;
 7447            let follower_states = &self.follower_states;
 7448            leader_border_for_pane(follower_states, &pane, window, cx)
 7449        });
 7450
 7451        let mut container = div()
 7452            .flex()
 7453            .overflow_hidden()
 7454            .flex_none()
 7455            .child(dock.clone())
 7456            .children(leader_border);
 7457
 7458        // Apply sizing only when the dock is open. When closed the dock is still
 7459        // included in the element tree so its focus handle remains mounted — without
 7460        // this, toggle_panel_focus cannot focus the panel when the dock is closed.
 7461        let dock = dock.read(cx);
 7462        if let Some(panel) = dock.visible_panel() {
 7463            let size_state = dock.stored_panel_size_state(panel.as_ref());
 7464            let min_size = panel.min_size(window, cx);
 7465            if position.axis() == Axis::Horizontal {
 7466                let use_flexible = panel.has_flexible_size(window, cx);
 7467                let flex_grow = if use_flexible {
 7468                    size_state
 7469                        .and_then(|state| state.flex)
 7470                        .or_else(|| self.default_dock_flex(position))
 7471                } else {
 7472                    None
 7473                };
 7474                if let Some(grow) = flex_grow {
 7475                    let grow = grow.max(0.001);
 7476                    let style = container.style();
 7477                    style.flex_grow = Some(grow);
 7478                    style.flex_shrink = Some(1.0);
 7479                    style.flex_basis = Some(relative(0.).into());
 7480                } else {
 7481                    let size = size_state
 7482                        .and_then(|state| state.size)
 7483                        .unwrap_or_else(|| panel.default_size(window, cx));
 7484                    container = container.w(size);
 7485                }
 7486                if let Some(min) = min_size {
 7487                    container = container.min_w(min);
 7488                }
 7489            } else {
 7490                let size = size_state
 7491                    .and_then(|state| state.size)
 7492                    .unwrap_or_else(|| panel.default_size(window, cx));
 7493                container = container.h(size);
 7494            }
 7495        }
 7496
 7497        Some(container)
 7498    }
 7499
 7500    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 7501        window
 7502            .root::<MultiWorkspace>()
 7503            .flatten()
 7504            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 7505    }
 7506
 7507    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 7508        self.zoomed.as_ref()
 7509    }
 7510
 7511    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 7512        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7513            return;
 7514        };
 7515        let windows = cx.windows();
 7516        let next_window =
 7517            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 7518                || {
 7519                    windows
 7520                        .iter()
 7521                        .cycle()
 7522                        .skip_while(|window| window.window_id() != current_window_id)
 7523                        .nth(1)
 7524                },
 7525            );
 7526
 7527        if let Some(window) = next_window {
 7528            window
 7529                .update(cx, |_, window, _| window.activate_window())
 7530                .ok();
 7531        }
 7532    }
 7533
 7534    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 7535        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 7536            return;
 7537        };
 7538        let windows = cx.windows();
 7539        let prev_window =
 7540            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 7541                || {
 7542                    windows
 7543                        .iter()
 7544                        .rev()
 7545                        .cycle()
 7546                        .skip_while(|window| window.window_id() != current_window_id)
 7547                        .nth(1)
 7548                },
 7549            );
 7550
 7551        if let Some(window) = prev_window {
 7552            window
 7553                .update(cx, |_, window, _| window.activate_window())
 7554                .ok();
 7555        }
 7556    }
 7557
 7558    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 7559        if cx.stop_active_drag(window) {
 7560        } else if let Some((notification_id, _)) = self.notifications.pop() {
 7561            dismiss_app_notification(&notification_id, cx);
 7562        } else {
 7563            cx.propagate();
 7564        }
 7565    }
 7566
 7567    fn resize_dock(
 7568        &mut self,
 7569        dock_pos: DockPosition,
 7570        new_size: Pixels,
 7571        window: &mut Window,
 7572        cx: &mut Context<Self>,
 7573    ) {
 7574        match dock_pos {
 7575            DockPosition::Left => self.resize_left_dock(new_size, window, cx),
 7576            DockPosition::Right => self.resize_right_dock(new_size, window, cx),
 7577            DockPosition::Bottom => self.resize_bottom_dock(new_size, window, cx),
 7578        }
 7579    }
 7580
 7581    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7582        let workspace_width = self.bounds.size.width;
 7583        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7584
 7585        self.right_dock.read_with(cx, |right_dock, cx| {
 7586            let right_dock_size = right_dock
 7587                .stored_active_panel_size(window, cx)
 7588                .unwrap_or(Pixels::ZERO);
 7589            if right_dock_size + size > workspace_width {
 7590                size = workspace_width - right_dock_size
 7591            }
 7592        });
 7593
 7594        let flex_grow = self.dock_flex_for_size(DockPosition::Left, size, window, cx);
 7595        self.left_dock.update(cx, |left_dock, cx| {
 7596            if WorkspaceSettings::get_global(cx)
 7597                .resize_all_panels_in_dock
 7598                .contains(&DockPosition::Left)
 7599            {
 7600                left_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7601            } else {
 7602                left_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7603            }
 7604        });
 7605    }
 7606
 7607    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7608        let workspace_width = self.bounds.size.width;
 7609        let mut size = new_size.min(workspace_width - RESIZE_HANDLE_SIZE);
 7610        self.left_dock.read_with(cx, |left_dock, cx| {
 7611            let left_dock_size = left_dock
 7612                .stored_active_panel_size(window, cx)
 7613                .unwrap_or(Pixels::ZERO);
 7614            if left_dock_size + size > workspace_width {
 7615                size = workspace_width - left_dock_size
 7616            }
 7617        });
 7618        let flex_grow = self.dock_flex_for_size(DockPosition::Right, size, window, cx);
 7619        self.right_dock.update(cx, |right_dock, cx| {
 7620            if WorkspaceSettings::get_global(cx)
 7621                .resize_all_panels_in_dock
 7622                .contains(&DockPosition::Right)
 7623            {
 7624                right_dock.resize_all_panels(Some(size), flex_grow, window, cx);
 7625            } else {
 7626                right_dock.resize_active_panel(Some(size), flex_grow, window, cx);
 7627            }
 7628        });
 7629    }
 7630
 7631    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 7632        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 7633        self.bottom_dock.update(cx, |bottom_dock, cx| {
 7634            if WorkspaceSettings::get_global(cx)
 7635                .resize_all_panels_in_dock
 7636                .contains(&DockPosition::Bottom)
 7637            {
 7638                bottom_dock.resize_all_panels(Some(size), None, window, cx);
 7639            } else {
 7640                bottom_dock.resize_active_panel(Some(size), None, window, cx);
 7641            }
 7642        });
 7643    }
 7644
 7645    fn toggle_edit_predictions_all_files(
 7646        &mut self,
 7647        _: &ToggleEditPrediction,
 7648        _window: &mut Window,
 7649        cx: &mut Context<Self>,
 7650    ) {
 7651        let fs = self.project().read(cx).fs().clone();
 7652        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 7653        update_settings_file(fs, cx, move |file, _| {
 7654            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 7655        });
 7656    }
 7657
 7658    fn toggle_theme_mode(&mut self, _: &ToggleMode, _window: &mut Window, cx: &mut Context<Self>) {
 7659        let current_mode = ThemeSettings::get_global(cx).theme.mode();
 7660        let next_mode = match current_mode {
 7661            Some(theme_settings::ThemeAppearanceMode::Light) => {
 7662                theme_settings::ThemeAppearanceMode::Dark
 7663            }
 7664            Some(theme_settings::ThemeAppearanceMode::Dark) => {
 7665                theme_settings::ThemeAppearanceMode::Light
 7666            }
 7667            Some(theme_settings::ThemeAppearanceMode::System) | None => {
 7668                match cx.theme().appearance() {
 7669                    theme::Appearance::Light => theme_settings::ThemeAppearanceMode::Dark,
 7670                    theme::Appearance::Dark => theme_settings::ThemeAppearanceMode::Light,
 7671                }
 7672            }
 7673        };
 7674
 7675        let fs = self.project().read(cx).fs().clone();
 7676        settings::update_settings_file(fs, cx, move |settings, _cx| {
 7677            theme_settings::set_mode(settings, next_mode);
 7678        });
 7679    }
 7680
 7681    pub fn show_worktree_trust_security_modal(
 7682        &mut self,
 7683        toggle: bool,
 7684        window: &mut Window,
 7685        cx: &mut Context<Self>,
 7686    ) {
 7687        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 7688            if toggle {
 7689                security_modal.update(cx, |security_modal, cx| {
 7690                    security_modal.dismiss(cx);
 7691                })
 7692            } else {
 7693                security_modal.update(cx, |security_modal, cx| {
 7694                    security_modal.refresh_restricted_paths(cx);
 7695                });
 7696            }
 7697        } else {
 7698            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 7699                .map(|trusted_worktrees| {
 7700                    trusted_worktrees
 7701                        .read(cx)
 7702                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 7703                })
 7704                .unwrap_or(false);
 7705            if has_restricted_worktrees {
 7706                let project = self.project().read(cx);
 7707                let remote_host = project
 7708                    .remote_connection_options(cx)
 7709                    .map(RemoteHostLocation::from);
 7710                let worktree_store = project.worktree_store().downgrade();
 7711                self.toggle_modal(window, cx, |_, cx| {
 7712                    SecurityModal::new(worktree_store, remote_host, cx)
 7713                });
 7714            }
 7715        }
 7716    }
 7717}
 7718
 7719pub trait AnyActiveCall {
 7720    fn entity(&self) -> AnyEntity;
 7721    fn is_in_room(&self, _: &App) -> bool;
 7722    fn room_id(&self, _: &App) -> Option<u64>;
 7723    fn channel_id(&self, _: &App) -> Option<ChannelId>;
 7724    fn hang_up(&self, _: &mut App) -> Task<Result<()>>;
 7725    fn unshare_project(&self, _: Entity<Project>, _: &mut App) -> Result<()>;
 7726    fn remote_participant_for_peer_id(&self, _: PeerId, _: &App) -> Option<RemoteCollaborator>;
 7727    fn is_sharing_project(&self, _: &App) -> bool;
 7728    fn has_remote_participants(&self, _: &App) -> bool;
 7729    fn local_participant_is_guest(&self, _: &App) -> bool;
 7730    fn client(&self, _: &App) -> Arc<Client>;
 7731    fn share_on_join(&self, _: &App) -> bool;
 7732    fn join_channel(&self, _: ChannelId, _: &mut App) -> Task<Result<bool>>;
 7733    fn room_update_completed(&self, _: &mut App) -> Task<()>;
 7734    fn most_active_project(&self, _: &App) -> Option<(u64, u64)>;
 7735    fn share_project(&self, _: Entity<Project>, _: &mut App) -> Task<Result<u64>>;
 7736    fn join_project(
 7737        &self,
 7738        _: u64,
 7739        _: Arc<LanguageRegistry>,
 7740        _: Arc<dyn Fs>,
 7741        _: &mut App,
 7742    ) -> Task<Result<Entity<Project>>>;
 7743    fn peer_id_for_user_in_room(&self, _: u64, _: &App) -> Option<PeerId>;
 7744    fn subscribe(
 7745        &self,
 7746        _: &mut Window,
 7747        _: &mut Context<Workspace>,
 7748        _: Box<dyn Fn(&mut Workspace, &ActiveCallEvent, &mut Window, &mut Context<Workspace>)>,
 7749    ) -> Subscription;
 7750    fn create_shared_screen(
 7751        &self,
 7752        _: PeerId,
 7753        _: &Entity<Pane>,
 7754        _: &mut Window,
 7755        _: &mut App,
 7756    ) -> Option<Entity<SharedScreen>>;
 7757}
 7758
 7759#[derive(Clone)]
 7760pub struct GlobalAnyActiveCall(pub Arc<dyn AnyActiveCall>);
 7761impl Global for GlobalAnyActiveCall {}
 7762
 7763impl GlobalAnyActiveCall {
 7764    pub(crate) fn try_global(cx: &App) -> Option<&Self> {
 7765        cx.try_global()
 7766    }
 7767
 7768    pub(crate) fn global(cx: &App) -> &Self {
 7769        cx.global()
 7770    }
 7771}
 7772
 7773/// Workspace-local view of a remote participant's location.
 7774#[derive(Clone, Copy, Debug, PartialEq, Eq)]
 7775pub enum ParticipantLocation {
 7776    SharedProject { project_id: u64 },
 7777    UnsharedProject,
 7778    External,
 7779}
 7780
 7781impl ParticipantLocation {
 7782    pub fn from_proto(location: Option<proto::ParticipantLocation>) -> Result<Self> {
 7783        match location
 7784            .and_then(|l| l.variant)
 7785            .context("participant location was not provided")?
 7786        {
 7787            proto::participant_location::Variant::SharedProject(project) => {
 7788                Ok(Self::SharedProject {
 7789                    project_id: project.id,
 7790                })
 7791            }
 7792            proto::participant_location::Variant::UnsharedProject(_) => Ok(Self::UnsharedProject),
 7793            proto::participant_location::Variant::External(_) => Ok(Self::External),
 7794        }
 7795    }
 7796}
 7797/// Workspace-local view of a remote collaborator's state.
 7798/// This is the subset of `call::RemoteParticipant` that workspace needs.
 7799#[derive(Clone)]
 7800pub struct RemoteCollaborator {
 7801    pub user: Arc<User>,
 7802    pub peer_id: PeerId,
 7803    pub location: ParticipantLocation,
 7804    pub participant_index: ParticipantIndex,
 7805}
 7806
 7807pub enum ActiveCallEvent {
 7808    ParticipantLocationChanged { participant_id: PeerId },
 7809    RemoteVideoTracksChanged { participant_id: PeerId },
 7810}
 7811
 7812fn leader_border_for_pane(
 7813    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7814    pane: &Entity<Pane>,
 7815    _: &Window,
 7816    cx: &App,
 7817) -> Option<Div> {
 7818    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7819        if state.pane() == pane {
 7820            Some((*leader_id, state))
 7821        } else {
 7822            None
 7823        }
 7824    })?;
 7825
 7826    let mut leader_color = match leader_id {
 7827        CollaboratorId::PeerId(leader_peer_id) => {
 7828            let leader = GlobalAnyActiveCall::try_global(cx)?
 7829                .0
 7830                .remote_participant_for_peer_id(leader_peer_id, cx)?;
 7831
 7832            cx.theme()
 7833                .players()
 7834                .color_for_participant(leader.participant_index.0)
 7835                .cursor
 7836        }
 7837        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7838    };
 7839    leader_color.fade_out(0.3);
 7840    Some(
 7841        div()
 7842            .absolute()
 7843            .size_full()
 7844            .left_0()
 7845            .top_0()
 7846            .border_2()
 7847            .border_color(leader_color),
 7848    )
 7849}
 7850
 7851fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7852    ZED_WINDOW_POSITION
 7853        .zip(*ZED_WINDOW_SIZE)
 7854        .map(|(position, size)| Bounds {
 7855            origin: position,
 7856            size,
 7857        })
 7858}
 7859
 7860fn open_items(
 7861    serialized_workspace: Option<SerializedWorkspace>,
 7862    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7863    window: &mut Window,
 7864    cx: &mut Context<Workspace>,
 7865) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7866    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7867        Workspace::load_workspace(
 7868            serialized_workspace,
 7869            project_paths_to_open
 7870                .iter()
 7871                .map(|(_, project_path)| project_path)
 7872                .cloned()
 7873                .collect(),
 7874            window,
 7875            cx,
 7876        )
 7877    });
 7878
 7879    cx.spawn_in(window, async move |workspace, cx| {
 7880        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7881
 7882        if let Some(restored_items) = restored_items {
 7883            let restored_items = restored_items.await?;
 7884
 7885            let restored_project_paths = restored_items
 7886                .iter()
 7887                .filter_map(|item| {
 7888                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7889                        .ok()
 7890                        .flatten()
 7891                })
 7892                .collect::<HashSet<_>>();
 7893
 7894            for restored_item in restored_items {
 7895                opened_items.push(restored_item.map(Ok));
 7896            }
 7897
 7898            project_paths_to_open
 7899                .iter_mut()
 7900                .for_each(|(_, project_path)| {
 7901                    if let Some(project_path_to_open) = project_path
 7902                        && restored_project_paths.contains(project_path_to_open)
 7903                    {
 7904                        *project_path = None;
 7905                    }
 7906                });
 7907        } else {
 7908            for _ in 0..project_paths_to_open.len() {
 7909                opened_items.push(None);
 7910            }
 7911        }
 7912        assert!(opened_items.len() == project_paths_to_open.len());
 7913
 7914        let tasks =
 7915            project_paths_to_open
 7916                .into_iter()
 7917                .enumerate()
 7918                .map(|(ix, (abs_path, project_path))| {
 7919                    let workspace = workspace.clone();
 7920                    cx.spawn(async move |cx| {
 7921                        let file_project_path = project_path?;
 7922                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7923                            workspace.project().update(cx, |project, cx| {
 7924                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7925                            })
 7926                        });
 7927
 7928                        // We only want to open file paths here. If one of the items
 7929                        // here is a directory, it was already opened further above
 7930                        // with a `find_or_create_worktree`.
 7931                        if let Ok(task) = abs_path_task
 7932                            && task.await.is_none_or(|p| p.is_file())
 7933                        {
 7934                            return Some((
 7935                                ix,
 7936                                workspace
 7937                                    .update_in(cx, |workspace, window, cx| {
 7938                                        workspace.open_path(
 7939                                            file_project_path,
 7940                                            None,
 7941                                            true,
 7942                                            window,
 7943                                            cx,
 7944                                        )
 7945                                    })
 7946                                    .log_err()?
 7947                                    .await,
 7948                            ));
 7949                        }
 7950                        None
 7951                    })
 7952                });
 7953
 7954        let tasks = tasks.collect::<Vec<_>>();
 7955
 7956        let tasks = futures::future::join_all(tasks);
 7957        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7958            opened_items[ix] = Some(path_open_result);
 7959        }
 7960
 7961        Ok(opened_items)
 7962    })
 7963}
 7964
 7965#[derive(Clone)]
 7966enum ActivateInDirectionTarget {
 7967    Pane(Entity<Pane>),
 7968    Dock(Entity<Dock>),
 7969    Sidebar(FocusHandle),
 7970}
 7971
 7972fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7973    window
 7974        .update(cx, |multi_workspace, _, cx| {
 7975            let workspace = multi_workspace.workspace().clone();
 7976            workspace.update(cx, |workspace, cx| {
 7977                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7978                    struct DatabaseFailedNotification;
 7979
 7980                    workspace.show_notification(
 7981                        NotificationId::unique::<DatabaseFailedNotification>(),
 7982                        cx,
 7983                        |cx| {
 7984                            cx.new(|cx| {
 7985                                MessageNotification::new("Failed to load the database file.", cx)
 7986                                    .primary_message("File an Issue")
 7987                                    .primary_icon(IconName::Plus)
 7988                                    .primary_on_click(|window, cx| {
 7989                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7990                                    })
 7991                            })
 7992                        },
 7993                    );
 7994                }
 7995            });
 7996        })
 7997        .log_err();
 7998}
 7999
 8000fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 8001    if val == 0 {
 8002        ThemeSettings::get_global(cx).ui_font_size(cx)
 8003    } else {
 8004        px(val as f32)
 8005    }
 8006}
 8007
 8008fn adjust_active_dock_size_by_px(
 8009    px: Pixels,
 8010    workspace: &mut Workspace,
 8011    window: &mut Window,
 8012    cx: &mut Context<Workspace>,
 8013) {
 8014    let Some(active_dock) = workspace
 8015        .all_docks()
 8016        .into_iter()
 8017        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 8018    else {
 8019        return;
 8020    };
 8021    let dock = active_dock.read(cx);
 8022    let Some(panel_size) = workspace.dock_size(&dock, window, cx) else {
 8023        return;
 8024    };
 8025    workspace.resize_dock(dock.position(), panel_size + px, window, cx);
 8026}
 8027
 8028fn adjust_open_docks_size_by_px(
 8029    px: Pixels,
 8030    workspace: &mut Workspace,
 8031    window: &mut Window,
 8032    cx: &mut Context<Workspace>,
 8033) {
 8034    let docks = workspace
 8035        .all_docks()
 8036        .into_iter()
 8037        .filter_map(|dock_entity| {
 8038            let dock = dock_entity.read(cx);
 8039            if dock.is_open() {
 8040                let dock_pos = dock.position();
 8041                let panel_size = workspace.dock_size(&dock, window, cx)?;
 8042                Some((dock_pos, panel_size + px))
 8043            } else {
 8044                None
 8045            }
 8046        })
 8047        .collect::<Vec<_>>();
 8048
 8049    for (position, new_size) in docks {
 8050        workspace.resize_dock(position, new_size, window, cx);
 8051    }
 8052}
 8053
 8054impl Focusable for Workspace {
 8055    fn focus_handle(&self, cx: &App) -> FocusHandle {
 8056        self.active_pane.focus_handle(cx)
 8057    }
 8058}
 8059
 8060#[derive(Clone)]
 8061struct DraggedDock(DockPosition);
 8062
 8063impl Render for DraggedDock {
 8064    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 8065        gpui::Empty
 8066    }
 8067}
 8068
 8069impl Render for Workspace {
 8070    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 8071        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 8072        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 8073            log::info!("Rendered first frame");
 8074        }
 8075
 8076        let centered_layout = self.centered_layout
 8077            && self.center.panes().len() == 1
 8078            && self.active_item(cx).is_some();
 8079        let render_padding = |size| {
 8080            (size > 0.0).then(|| {
 8081                div()
 8082                    .h_full()
 8083                    .w(relative(size))
 8084                    .bg(cx.theme().colors().editor_background)
 8085                    .border_color(cx.theme().colors().pane_group_border)
 8086            })
 8087        };
 8088        let paddings = if centered_layout {
 8089            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 8090            (
 8091                render_padding(Self::adjust_padding(
 8092                    settings.left_padding.map(|padding| padding.0),
 8093                )),
 8094                render_padding(Self::adjust_padding(
 8095                    settings.right_padding.map(|padding| padding.0),
 8096                )),
 8097            )
 8098        } else {
 8099            (None, None)
 8100        };
 8101        let ui_font = theme_settings::setup_ui_font(window, cx);
 8102
 8103        let theme = cx.theme().clone();
 8104        let colors = theme.colors();
 8105        let notification_entities = self
 8106            .notifications
 8107            .iter()
 8108            .map(|(_, notification)| notification.entity_id())
 8109            .collect::<Vec<_>>();
 8110        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 8111
 8112        div()
 8113            .relative()
 8114            .size_full()
 8115            .flex()
 8116            .flex_col()
 8117            .font(ui_font)
 8118            .gap_0()
 8119                .justify_start()
 8120                .items_start()
 8121                .text_color(colors.text)
 8122                .overflow_hidden()
 8123                .children(self.titlebar_item.clone())
 8124                .on_modifiers_changed(move |_, _, cx| {
 8125                    for &id in &notification_entities {
 8126                        cx.notify(id);
 8127                    }
 8128                })
 8129                .child(
 8130                    div()
 8131                        .size_full()
 8132                        .relative()
 8133                        .flex_1()
 8134                        .flex()
 8135                        .flex_col()
 8136                        .child(
 8137                            div()
 8138                                .id("workspace")
 8139                                .bg(colors.background)
 8140                                .relative()
 8141                                .flex_1()
 8142                                .w_full()
 8143                                .flex()
 8144                                .flex_col()
 8145                                .overflow_hidden()
 8146                                .border_t_1()
 8147                                .border_b_1()
 8148                                .border_color(colors.border)
 8149                                .child({
 8150                                    let this = cx.entity();
 8151                                    canvas(
 8152                                        move |bounds, window, cx| {
 8153                                            this.update(cx, |this, cx| {
 8154                                                let bounds_changed = this.bounds != bounds;
 8155                                                this.bounds = bounds;
 8156
 8157                                                if bounds_changed {
 8158                                                    this.left_dock.update(cx, |dock, cx| {
 8159                                                        dock.clamp_panel_size(
 8160                                                            bounds.size.width,
 8161                                                            window,
 8162                                                            cx,
 8163                                                        )
 8164                                                    });
 8165
 8166                                                    this.right_dock.update(cx, |dock, cx| {
 8167                                                        dock.clamp_panel_size(
 8168                                                            bounds.size.width,
 8169                                                            window,
 8170                                                            cx,
 8171                                                        )
 8172                                                    });
 8173
 8174                                                    this.bottom_dock.update(cx, |dock, cx| {
 8175                                                        dock.clamp_panel_size(
 8176                                                            bounds.size.height,
 8177                                                            window,
 8178                                                            cx,
 8179                                                        )
 8180                                                    });
 8181                                                }
 8182                                            })
 8183                                        },
 8184                                        |_, _, _, _| {},
 8185                                    )
 8186                                    .absolute()
 8187                                    .size_full()
 8188                                })
 8189                                .when(self.zoomed.is_none(), |this| {
 8190                                    this.on_drag_move(cx.listener(
 8191                                        move |workspace,
 8192                                              e: &DragMoveEvent<DraggedDock>,
 8193                                              window,
 8194                                              cx| {
 8195                                            if workspace.previous_dock_drag_coordinates
 8196                                                != Some(e.event.position)
 8197                                            {
 8198                                                workspace.previous_dock_drag_coordinates =
 8199                                                    Some(e.event.position);
 8200
 8201                                                match e.drag(cx).0 {
 8202                                                    DockPosition::Left => {
 8203                                                        workspace.resize_left_dock(
 8204                                                            e.event.position.x
 8205                                                                - workspace.bounds.left(),
 8206                                                            window,
 8207                                                            cx,
 8208                                                        );
 8209                                                    }
 8210                                                    DockPosition::Right => {
 8211                                                        workspace.resize_right_dock(
 8212                                                            workspace.bounds.right()
 8213                                                                - e.event.position.x,
 8214                                                            window,
 8215                                                            cx,
 8216                                                        );
 8217                                                    }
 8218                                                    DockPosition::Bottom => {
 8219                                                        workspace.resize_bottom_dock(
 8220                                                            workspace.bounds.bottom()
 8221                                                                - e.event.position.y,
 8222                                                            window,
 8223                                                            cx,
 8224                                                        );
 8225                                                    }
 8226                                                };
 8227                                                workspace.serialize_workspace(window, cx);
 8228                                            }
 8229                                        },
 8230                                    ))
 8231
 8232                                })
 8233                                .child({
 8234                                    match bottom_dock_layout {
 8235                                        BottomDockLayout::Full => div()
 8236                                            .flex()
 8237                                            .flex_col()
 8238                                            .h_full()
 8239                                            .child(
 8240                                                div()
 8241                                                    .flex()
 8242                                                    .flex_row()
 8243                                                    .flex_1()
 8244                                                    .overflow_hidden()
 8245                                                    .children(self.render_dock(
 8246                                                        DockPosition::Left,
 8247                                                        &self.left_dock,
 8248                                                        window,
 8249                                                        cx,
 8250                                                    ))
 8251
 8252                                                    .child(
 8253                                                        div()
 8254                                                            .flex()
 8255                                                            .flex_col()
 8256                                                            .flex_1()
 8257                                                            .overflow_hidden()
 8258                                                            .child(
 8259                                                                h_flex()
 8260                                                                    .flex_1()
 8261                                                                    .when_some(
 8262                                                                        paddings.0,
 8263                                                                        |this, p| {
 8264                                                                            this.child(
 8265                                                                                p.border_r_1(),
 8266                                                                            )
 8267                                                                        },
 8268                                                                    )
 8269                                                                    .child(self.center.render(
 8270                                                                        self.zoomed.as_ref(),
 8271                                                                        &PaneRenderContext {
 8272                                                                            follower_states:
 8273                                                                                &self.follower_states,
 8274                                                                            active_call: self.active_call(),
 8275                                                                            active_pane: &self.active_pane,
 8276                                                                            app_state: &self.app_state,
 8277                                                                            project: &self.project,
 8278                                                                            workspace: &self.weak_self,
 8279                                                                        },
 8280                                                                        window,
 8281                                                                        cx,
 8282                                                                    ))
 8283                                                                    .when_some(
 8284                                                                        paddings.1,
 8285                                                                        |this, p| {
 8286                                                                            this.child(
 8287                                                                                p.border_l_1(),
 8288                                                                            )
 8289                                                                        },
 8290                                                                    ),
 8291                                                            ),
 8292                                                    )
 8293
 8294                                                    .children(self.render_dock(
 8295                                                        DockPosition::Right,
 8296                                                        &self.right_dock,
 8297                                                        window,
 8298                                                        cx,
 8299                                                    )),
 8300                                            )
 8301                                            .child(div().w_full().children(self.render_dock(
 8302                                                DockPosition::Bottom,
 8303                                                &self.bottom_dock,
 8304                                                window,
 8305                                                cx
 8306                                            ))),
 8307
 8308                                        BottomDockLayout::LeftAligned => div()
 8309                                            .flex()
 8310                                            .flex_row()
 8311                                            .h_full()
 8312                                            .child(
 8313                                                div()
 8314                                                    .flex()
 8315                                                    .flex_col()
 8316                                                    .flex_1()
 8317                                                    .h_full()
 8318                                                    .child(
 8319                                                        div()
 8320                                                            .flex()
 8321                                                            .flex_row()
 8322                                                            .flex_1()
 8323                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 8324
 8325                                                            .child(
 8326                                                                div()
 8327                                                                    .flex()
 8328                                                                    .flex_col()
 8329                                                                    .flex_1()
 8330                                                                    .overflow_hidden()
 8331                                                                    .child(
 8332                                                                        h_flex()
 8333                                                                            .flex_1()
 8334                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8335                                                                            .child(self.center.render(
 8336                                                                                self.zoomed.as_ref(),
 8337                                                                                &PaneRenderContext {
 8338                                                                                    follower_states:
 8339                                                                                        &self.follower_states,
 8340                                                                                    active_call: self.active_call(),
 8341                                                                                    active_pane: &self.active_pane,
 8342                                                                                    app_state: &self.app_state,
 8343                                                                                    project: &self.project,
 8344                                                                                    workspace: &self.weak_self,
 8345                                                                                },
 8346                                                                                window,
 8347                                                                                cx,
 8348                                                                            ))
 8349                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8350                                                                    )
 8351                                                            )
 8352
 8353                                                    )
 8354                                                    .child(
 8355                                                        div()
 8356                                                            .w_full()
 8357                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8358                                                    ),
 8359                                            )
 8360                                            .children(self.render_dock(
 8361                                                DockPosition::Right,
 8362                                                &self.right_dock,
 8363                                                window,
 8364                                                cx,
 8365                                            )),
 8366                                        BottomDockLayout::RightAligned => div()
 8367                                            .flex()
 8368                                            .flex_row()
 8369                                            .h_full()
 8370                                            .children(self.render_dock(
 8371                                                DockPosition::Left,
 8372                                                &self.left_dock,
 8373                                                window,
 8374                                                cx,
 8375                                            ))
 8376
 8377                                            .child(
 8378                                                div()
 8379                                                    .flex()
 8380                                                    .flex_col()
 8381                                                    .flex_1()
 8382                                                    .h_full()
 8383                                                    .child(
 8384                                                        div()
 8385                                                            .flex()
 8386                                                            .flex_row()
 8387                                                            .flex_1()
 8388                                                            .child(
 8389                                                                div()
 8390                                                                    .flex()
 8391                                                                    .flex_col()
 8392                                                                    .flex_1()
 8393                                                                    .overflow_hidden()
 8394                                                                    .child(
 8395                                                                        h_flex()
 8396                                                                            .flex_1()
 8397                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 8398                                                                            .child(self.center.render(
 8399                                                                                self.zoomed.as_ref(),
 8400                                                                                &PaneRenderContext {
 8401                                                                                    follower_states:
 8402                                                                                        &self.follower_states,
 8403                                                                                    active_call: self.active_call(),
 8404                                                                                    active_pane: &self.active_pane,
 8405                                                                                    app_state: &self.app_state,
 8406                                                                                    project: &self.project,
 8407                                                                                    workspace: &self.weak_self,
 8408                                                                                },
 8409                                                                                window,
 8410                                                                                cx,
 8411                                                                            ))
 8412                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 8413                                                                    )
 8414                                                            )
 8415
 8416                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 8417                                                    )
 8418                                                    .child(
 8419                                                        div()
 8420                                                            .w_full()
 8421                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 8422                                                    ),
 8423                                            ),
 8424                                        BottomDockLayout::Contained => div()
 8425                                            .flex()
 8426                                            .flex_row()
 8427                                            .h_full()
 8428                                            .children(self.render_dock(
 8429                                                DockPosition::Left,
 8430                                                &self.left_dock,
 8431                                                window,
 8432                                                cx,
 8433                                            ))
 8434
 8435                                            .child(
 8436                                                div()
 8437                                                    .flex()
 8438                                                    .flex_col()
 8439                                                    .flex_1()
 8440                                                    .overflow_hidden()
 8441                                                    .child(
 8442                                                        h_flex()
 8443                                                            .flex_1()
 8444                                                            .when_some(paddings.0, |this, p| {
 8445                                                                this.child(p.border_r_1())
 8446                                                            })
 8447                                                            .child(self.center.render(
 8448                                                                self.zoomed.as_ref(),
 8449                                                                &PaneRenderContext {
 8450                                                                    follower_states:
 8451                                                                        &self.follower_states,
 8452                                                                    active_call: self.active_call(),
 8453                                                                    active_pane: &self.active_pane,
 8454                                                                    app_state: &self.app_state,
 8455                                                                    project: &self.project,
 8456                                                                    workspace: &self.weak_self,
 8457                                                                },
 8458                                                                window,
 8459                                                                cx,
 8460                                                            ))
 8461                                                            .when_some(paddings.1, |this, p| {
 8462                                                                this.child(p.border_l_1())
 8463                                                            }),
 8464                                                    )
 8465                                                    .children(self.render_dock(
 8466                                                        DockPosition::Bottom,
 8467                                                        &self.bottom_dock,
 8468                                                        window,
 8469                                                        cx,
 8470                                                    )),
 8471                                            )
 8472
 8473                                            .children(self.render_dock(
 8474                                                DockPosition::Right,
 8475                                                &self.right_dock,
 8476                                                window,
 8477                                                cx,
 8478                                            )),
 8479                                    }
 8480                                })
 8481                                .children(self.zoomed.as_ref().and_then(|view| {
 8482                                    let zoomed_view = view.upgrade()?;
 8483                                    let div = div()
 8484                                        .occlude()
 8485                                        .absolute()
 8486                                        .overflow_hidden()
 8487                                        .border_color(colors.border)
 8488                                        .bg(colors.background)
 8489                                        .child(zoomed_view)
 8490                                        .inset_0()
 8491                                        .shadow_lg();
 8492
 8493                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 8494                                       return Some(div);
 8495                                    }
 8496
 8497                                    Some(match self.zoomed_position {
 8498                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 8499                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 8500                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 8501                                        None => {
 8502                                            div.top_2().bottom_2().left_2().right_2().border_1()
 8503                                        }
 8504                                    })
 8505                                }))
 8506                                .children(self.render_notifications(window, cx)),
 8507                        )
 8508                        .when(self.status_bar_visible(cx), |parent| {
 8509                            parent.child(self.status_bar.clone())
 8510                        })
 8511                        .child(self.toast_layer.clone()),
 8512                )
 8513    }
 8514}
 8515
 8516impl WorkspaceStore {
 8517    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 8518        Self {
 8519            workspaces: Default::default(),
 8520            _subscriptions: vec![
 8521                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 8522                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 8523            ],
 8524            client,
 8525        }
 8526    }
 8527
 8528    pub fn update_followers(
 8529        &self,
 8530        project_id: Option<u64>,
 8531        update: proto::update_followers::Variant,
 8532        cx: &App,
 8533    ) -> Option<()> {
 8534        let active_call = GlobalAnyActiveCall::try_global(cx)?;
 8535        let room_id = active_call.0.room_id(cx)?;
 8536        self.client
 8537            .send(proto::UpdateFollowers {
 8538                room_id,
 8539                project_id,
 8540                variant: Some(update),
 8541            })
 8542            .log_err()
 8543    }
 8544
 8545    pub async fn handle_follow(
 8546        this: Entity<Self>,
 8547        envelope: TypedEnvelope<proto::Follow>,
 8548        mut cx: AsyncApp,
 8549    ) -> Result<proto::FollowResponse> {
 8550        this.update(&mut cx, |this, cx| {
 8551            let follower = Follower {
 8552                project_id: envelope.payload.project_id,
 8553                peer_id: envelope.original_sender_id()?,
 8554            };
 8555
 8556            let mut response = proto::FollowResponse::default();
 8557
 8558            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8559                let Some(workspace) = weak_workspace.upgrade() else {
 8560                    return false;
 8561                };
 8562                window_handle
 8563                    .update(cx, |_, window, cx| {
 8564                        workspace.update(cx, |workspace, cx| {
 8565                            let handler_response =
 8566                                workspace.handle_follow(follower.project_id, window, cx);
 8567                            if let Some(active_view) = handler_response.active_view
 8568                                && workspace.project.read(cx).remote_id() == follower.project_id
 8569                            {
 8570                                response.active_view = Some(active_view)
 8571                            }
 8572                        });
 8573                    })
 8574                    .is_ok()
 8575            });
 8576
 8577            Ok(response)
 8578        })
 8579    }
 8580
 8581    async fn handle_update_followers(
 8582        this: Entity<Self>,
 8583        envelope: TypedEnvelope<proto::UpdateFollowers>,
 8584        mut cx: AsyncApp,
 8585    ) -> Result<()> {
 8586        let leader_id = envelope.original_sender_id()?;
 8587        let update = envelope.payload;
 8588
 8589        this.update(&mut cx, |this, cx| {
 8590            this.workspaces.retain(|(window_handle, weak_workspace)| {
 8591                let Some(workspace) = weak_workspace.upgrade() else {
 8592                    return false;
 8593                };
 8594                window_handle
 8595                    .update(cx, |_, window, cx| {
 8596                        workspace.update(cx, |workspace, cx| {
 8597                            let project_id = workspace.project.read(cx).remote_id();
 8598                            if update.project_id != project_id && update.project_id.is_some() {
 8599                                return;
 8600                            }
 8601                            workspace.handle_update_followers(
 8602                                leader_id,
 8603                                update.clone(),
 8604                                window,
 8605                                cx,
 8606                            );
 8607                        });
 8608                    })
 8609                    .is_ok()
 8610            });
 8611            Ok(())
 8612        })
 8613    }
 8614
 8615    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 8616        self.workspaces.iter().map(|(_, weak)| weak)
 8617    }
 8618
 8619    pub fn workspaces_with_windows(
 8620        &self,
 8621    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 8622        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 8623    }
 8624}
 8625
 8626impl ViewId {
 8627    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 8628        Ok(Self {
 8629            creator: message
 8630                .creator
 8631                .map(CollaboratorId::PeerId)
 8632                .context("creator is missing")?,
 8633            id: message.id,
 8634        })
 8635    }
 8636
 8637    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 8638        if let CollaboratorId::PeerId(peer_id) = self.creator {
 8639            Some(proto::ViewId {
 8640                creator: Some(peer_id),
 8641                id: self.id,
 8642            })
 8643        } else {
 8644            None
 8645        }
 8646    }
 8647}
 8648
 8649impl FollowerState {
 8650    fn pane(&self) -> &Entity<Pane> {
 8651        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 8652    }
 8653}
 8654
 8655pub trait WorkspaceHandle {
 8656    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 8657}
 8658
 8659impl WorkspaceHandle for Entity<Workspace> {
 8660    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 8661        self.read(cx)
 8662            .worktrees(cx)
 8663            .flat_map(|worktree| {
 8664                let worktree_id = worktree.read(cx).id();
 8665                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 8666                    worktree_id,
 8667                    path: f.path.clone(),
 8668                })
 8669            })
 8670            .collect::<Vec<_>>()
 8671    }
 8672}
 8673
 8674pub async fn last_opened_workspace_location(
 8675    db: &WorkspaceDb,
 8676    fs: &dyn fs::Fs,
 8677) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 8678    db.last_workspace(fs)
 8679        .await
 8680        .log_err()
 8681        .flatten()
 8682        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 8683}
 8684
 8685pub async fn last_session_workspace_locations(
 8686    db: &WorkspaceDb,
 8687    last_session_id: &str,
 8688    last_session_window_stack: Option<Vec<WindowId>>,
 8689    fs: &dyn fs::Fs,
 8690) -> Option<Vec<SessionWorkspace>> {
 8691    db.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 8692        .await
 8693        .log_err()
 8694}
 8695
 8696pub async fn restore_multiworkspace(
 8697    multi_workspace: SerializedMultiWorkspace,
 8698    app_state: Arc<AppState>,
 8699    cx: &mut AsyncApp,
 8700) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8701    let SerializedMultiWorkspace {
 8702        active_workspace,
 8703        state,
 8704    } = multi_workspace;
 8705
 8706    let workspace_result = if active_workspace.paths.is_empty() {
 8707        cx.update(|cx| {
 8708            open_workspace_by_id(active_workspace.workspace_id, app_state.clone(), None, cx)
 8709        })
 8710        .await
 8711    } else {
 8712        cx.update(|cx| {
 8713            Workspace::new_local(
 8714                active_workspace.paths.paths().to_vec(),
 8715                app_state.clone(),
 8716                None,
 8717                None,
 8718                None,
 8719                OpenMode::Activate,
 8720                cx,
 8721            )
 8722        })
 8723        .await
 8724        .map(|result| result.window)
 8725    };
 8726
 8727    let window_handle = match workspace_result {
 8728        Ok(handle) => handle,
 8729        Err(err) => {
 8730            log::error!("Failed to restore active workspace: {err:#}");
 8731
 8732            let mut fallback_handle = None;
 8733            for key in &state.project_groups {
 8734                let key: ProjectGroupKey = key.clone().into();
 8735                let paths = key.path_list().paths().to_vec();
 8736                match cx
 8737                    .update(|cx| {
 8738                        Workspace::new_local(
 8739                            paths,
 8740                            app_state.clone(),
 8741                            None,
 8742                            None,
 8743                            None,
 8744                            OpenMode::Activate,
 8745                            cx,
 8746                        )
 8747                    })
 8748                    .await
 8749                {
 8750                    Ok(OpenResult { window, .. }) => {
 8751                        fallback_handle = Some(window);
 8752                        break;
 8753                    }
 8754                    Err(fallback_err) => {
 8755                        log::error!("Fallback project group also failed: {fallback_err:#}");
 8756                    }
 8757                }
 8758            }
 8759
 8760            fallback_handle.ok_or(err)?
 8761        }
 8762    };
 8763
 8764    apply_restored_multiworkspace_state(window_handle, &state, app_state.fs.clone(), cx).await;
 8765
 8766    window_handle
 8767        .update(cx, |_, window, _cx| {
 8768            window.activate_window();
 8769        })
 8770        .ok();
 8771
 8772    Ok(window_handle)
 8773}
 8774
 8775pub async fn apply_restored_multiworkspace_state(
 8776    window_handle: WindowHandle<MultiWorkspace>,
 8777    state: &MultiWorkspaceState,
 8778    fs: Arc<dyn fs::Fs>,
 8779    cx: &mut AsyncApp,
 8780) {
 8781    let MultiWorkspaceState {
 8782        sidebar_open,
 8783        project_groups,
 8784        sidebar_state,
 8785        ..
 8786    } = state;
 8787
 8788    if !project_groups.is_empty() {
 8789        // Resolve linked worktree paths to their main repo paths so
 8790        // stale keys from previous sessions get normalized and deduped.
 8791        let mut resolved_groups: Vec<SerializedProjectGroupState> = Vec::new();
 8792        for serialized in project_groups.iter().cloned() {
 8793            let SerializedProjectGroupState {
 8794                key,
 8795                expanded,
 8796                visible_thread_count,
 8797            } = serialized.into_restored_state();
 8798            if key.path_list().paths().is_empty() {
 8799                continue;
 8800            }
 8801            let mut resolved_paths = Vec::new();
 8802            for path in key.path_list().paths() {
 8803                if key.host().is_none()
 8804                    && let Some(common_dir) =
 8805                        project::discover_root_repo_common_dir(path, fs.as_ref()).await
 8806                {
 8807                    let main_path = common_dir.parent().unwrap_or(&common_dir);
 8808                    resolved_paths.push(main_path.to_path_buf());
 8809                } else {
 8810                    resolved_paths.push(path.to_path_buf());
 8811                }
 8812            }
 8813            let resolved = ProjectGroupKey::new(key.host(), PathList::new(&resolved_paths));
 8814            if !resolved_groups.iter().any(|g| g.key == resolved) {
 8815                resolved_groups.push(SerializedProjectGroupState {
 8816                    key: resolved,
 8817                    expanded,
 8818                    visible_thread_count,
 8819                });
 8820            }
 8821        }
 8822
 8823        window_handle
 8824            .update(cx, |multi_workspace, _window, cx| {
 8825                multi_workspace.restore_project_groups(resolved_groups, cx);
 8826            })
 8827            .ok();
 8828    }
 8829
 8830    if *sidebar_open {
 8831        window_handle
 8832            .update(cx, |multi_workspace, _, cx| {
 8833                multi_workspace.open_sidebar(cx);
 8834            })
 8835            .ok();
 8836    }
 8837
 8838    if let Some(sidebar_state) = sidebar_state {
 8839        window_handle
 8840            .update(cx, |multi_workspace, window, cx| {
 8841                if let Some(sidebar) = multi_workspace.sidebar() {
 8842                    sidebar.restore_serialized_state(sidebar_state, window, cx);
 8843                }
 8844                multi_workspace.serialize(cx);
 8845            })
 8846            .ok();
 8847    }
 8848}
 8849
 8850actions!(
 8851    collab,
 8852    [
 8853        /// Opens the channel notes for the current call.
 8854        ///
 8855        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8856        /// channel in the collab panel.
 8857        ///
 8858        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8859        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8860        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8861        OpenChannelNotes,
 8862        /// Mutes your microphone.
 8863        Mute,
 8864        /// Deafens yourself (mute both microphone and speakers).
 8865        Deafen,
 8866        /// Leaves the current call.
 8867        LeaveCall,
 8868        /// Shares the current project with collaborators.
 8869        ShareProject,
 8870        /// Shares your screen with collaborators.
 8871        ScreenShare,
 8872        /// Copies the current room name and session id for debugging purposes.
 8873        CopyRoomId,
 8874    ]
 8875);
 8876
 8877/// Opens the channel notes for a specific channel by its ID.
 8878#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
 8879#[action(namespace = collab)]
 8880#[serde(deny_unknown_fields)]
 8881pub struct OpenChannelNotesById {
 8882    pub channel_id: u64,
 8883}
 8884
 8885actions!(
 8886    zed,
 8887    [
 8888        /// Opens the Zed log file.
 8889        OpenLog,
 8890        /// Reveals the Zed log file in the system file manager.
 8891        RevealLogInFileManager
 8892    ]
 8893);
 8894
 8895async fn join_channel_internal(
 8896    channel_id: ChannelId,
 8897    app_state: &Arc<AppState>,
 8898    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8899    requesting_workspace: Option<WeakEntity<Workspace>>,
 8900    active_call: &dyn AnyActiveCall,
 8901    cx: &mut AsyncApp,
 8902) -> Result<bool> {
 8903    let (should_prompt, already_in_channel) = cx.update(|cx| {
 8904        if !active_call.is_in_room(cx) {
 8905            return (false, false);
 8906        }
 8907
 8908        let already_in_channel = active_call.channel_id(cx) == Some(channel_id);
 8909        let should_prompt = active_call.is_sharing_project(cx)
 8910            && active_call.has_remote_participants(cx)
 8911            && !already_in_channel;
 8912        (should_prompt, already_in_channel)
 8913    });
 8914
 8915    if already_in_channel {
 8916        let task = cx.update(|cx| {
 8917            if let Some((project, host)) = active_call.most_active_project(cx) {
 8918                Some(join_in_room_project(project, host, app_state.clone(), cx))
 8919            } else {
 8920                None
 8921            }
 8922        });
 8923        if let Some(task) = task {
 8924            task.await?;
 8925        }
 8926        return anyhow::Ok(true);
 8927    }
 8928
 8929    if should_prompt {
 8930        if let Some(multi_workspace) = requesting_window {
 8931            let answer = multi_workspace
 8932                .update(cx, |_, window, cx| {
 8933                    window.prompt(
 8934                        PromptLevel::Warning,
 8935                        "Do you want to switch channels?",
 8936                        Some("Leaving this call will unshare your current project."),
 8937                        &["Yes, Join Channel", "Cancel"],
 8938                        cx,
 8939                    )
 8940                })?
 8941                .await;
 8942
 8943            if answer == Ok(1) {
 8944                return Ok(false);
 8945            }
 8946        } else {
 8947            return Ok(false);
 8948        }
 8949    }
 8950
 8951    let client = cx.update(|cx| active_call.client(cx));
 8952
 8953    let mut client_status = client.status();
 8954
 8955    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8956    'outer: loop {
 8957        let Some(status) = client_status.recv().await else {
 8958            anyhow::bail!("error connecting");
 8959        };
 8960
 8961        match status {
 8962            Status::Connecting
 8963            | Status::Authenticating
 8964            | Status::Authenticated
 8965            | Status::Reconnecting
 8966            | Status::Reauthenticating
 8967            | Status::Reauthenticated => continue,
 8968            Status::Connected { .. } => break 'outer,
 8969            Status::SignedOut | Status::AuthenticationError => {
 8970                return Err(ErrorCode::SignedOut.into());
 8971            }
 8972            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8973            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8974                return Err(ErrorCode::Disconnected.into());
 8975            }
 8976        }
 8977    }
 8978
 8979    let joined = cx
 8980        .update(|cx| active_call.join_channel(channel_id, cx))
 8981        .await?;
 8982
 8983    if !joined {
 8984        return anyhow::Ok(true);
 8985    }
 8986
 8987    cx.update(|cx| active_call.room_update_completed(cx)).await;
 8988
 8989    let task = cx.update(|cx| {
 8990        if let Some((project, host)) = active_call.most_active_project(cx) {
 8991            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8992        }
 8993
 8994        // If you are the first to join a channel, see if you should share your project.
 8995        if !active_call.has_remote_participants(cx)
 8996            && !active_call.local_participant_is_guest(cx)
 8997            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8998        {
 8999            let project = workspace.update(cx, |workspace, cx| {
 9000                let project = workspace.project.read(cx);
 9001
 9002                if !active_call.share_on_join(cx) {
 9003                    return None;
 9004                }
 9005
 9006                if (project.is_local() || project.is_via_remote_server())
 9007                    && project.visible_worktrees(cx).any(|tree| {
 9008                        tree.read(cx)
 9009                            .root_entry()
 9010                            .is_some_and(|entry| entry.is_dir())
 9011                    })
 9012                {
 9013                    Some(workspace.project.clone())
 9014                } else {
 9015                    None
 9016                }
 9017            });
 9018            if let Some(project) = project {
 9019                let share_task = active_call.share_project(project, cx);
 9020                return Some(cx.spawn(async move |_cx| -> Result<()> {
 9021                    share_task.await?;
 9022                    Ok(())
 9023                }));
 9024            }
 9025        }
 9026
 9027        None
 9028    });
 9029    if let Some(task) = task {
 9030        task.await?;
 9031        return anyhow::Ok(true);
 9032    }
 9033    anyhow::Ok(false)
 9034}
 9035
 9036pub fn join_channel(
 9037    channel_id: ChannelId,
 9038    app_state: Arc<AppState>,
 9039    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9040    requesting_workspace: Option<WeakEntity<Workspace>>,
 9041    cx: &mut App,
 9042) -> Task<Result<()>> {
 9043    let active_call = GlobalAnyActiveCall::global(cx).clone();
 9044    cx.spawn(async move |cx| {
 9045        let result = join_channel_internal(
 9046            channel_id,
 9047            &app_state,
 9048            requesting_window,
 9049            requesting_workspace,
 9050            &*active_call.0,
 9051            cx,
 9052        )
 9053        .await;
 9054
 9055        // join channel succeeded, and opened a window
 9056        if matches!(result, Ok(true)) {
 9057            return anyhow::Ok(());
 9058        }
 9059
 9060        // find an existing workspace to focus and show call controls
 9061        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 9062        if active_window.is_none() {
 9063            // no open workspaces, make one to show the error in (blergh)
 9064            let OpenResult {
 9065                window: window_handle,
 9066                ..
 9067            } = cx
 9068                .update(|cx| {
 9069                    Workspace::new_local(
 9070                        vec![],
 9071                        app_state.clone(),
 9072                        requesting_window,
 9073                        None,
 9074                        None,
 9075                        OpenMode::Activate,
 9076                        cx,
 9077                    )
 9078                })
 9079                .await?;
 9080
 9081            window_handle
 9082                .update(cx, |_, window, _cx| {
 9083                    window.activate_window();
 9084                })
 9085                .ok();
 9086
 9087            if result.is_ok() {
 9088                cx.update(|cx| {
 9089                    cx.dispatch_action(&OpenChannelNotes);
 9090                });
 9091            }
 9092
 9093            active_window = Some(window_handle);
 9094        }
 9095
 9096        if let Err(err) = result {
 9097            log::error!("failed to join channel: {}", err);
 9098            if let Some(active_window) = active_window {
 9099                active_window
 9100                    .update(cx, |_, window, cx| {
 9101                        let detail: SharedString = match err.error_code() {
 9102                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 9103                            ErrorCode::UpgradeRequired => concat!(
 9104                                "Your are running an unsupported version of Zed. ",
 9105                                "Please update to continue."
 9106                            )
 9107                            .into(),
 9108                            ErrorCode::NoSuchChannel => concat!(
 9109                                "No matching channel was found. ",
 9110                                "Please check the link and try again."
 9111                            )
 9112                            .into(),
 9113                            ErrorCode::Forbidden => concat!(
 9114                                "This channel is private, and you do not have access. ",
 9115                                "Please ask someone to add you and try again."
 9116                            )
 9117                            .into(),
 9118                            ErrorCode::Disconnected => {
 9119                                "Please check your internet connection and try again.".into()
 9120                            }
 9121                            _ => format!("{}\n\nPlease try again.", err).into(),
 9122                        };
 9123                        window.prompt(
 9124                            PromptLevel::Critical,
 9125                            "Failed to join channel",
 9126                            Some(&detail),
 9127                            &["Ok"],
 9128                            cx,
 9129                        )
 9130                    })?
 9131                    .await
 9132                    .ok();
 9133            }
 9134        }
 9135
 9136        // return ok, we showed the error to the user.
 9137        anyhow::Ok(())
 9138    })
 9139}
 9140
 9141pub async fn get_any_active_multi_workspace(
 9142    app_state: Arc<AppState>,
 9143    mut cx: AsyncApp,
 9144) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 9145    // find an existing workspace to focus and show call controls
 9146    let active_window = activate_any_workspace_window(&mut cx);
 9147    if active_window.is_none() {
 9148        cx.update(|cx| {
 9149            Workspace::new_local(
 9150                vec![],
 9151                app_state.clone(),
 9152                None,
 9153                None,
 9154                None,
 9155                OpenMode::Activate,
 9156                cx,
 9157            )
 9158        })
 9159        .await?;
 9160    }
 9161    activate_any_workspace_window(&mut cx).context("could not open zed")
 9162}
 9163
 9164fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 9165    cx.update(|cx| {
 9166        if let Some(workspace_window) = cx
 9167            .active_window()
 9168            .and_then(|window| window.downcast::<MultiWorkspace>())
 9169        {
 9170            return Some(workspace_window);
 9171        }
 9172
 9173        for window in cx.windows() {
 9174            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 9175                workspace_window
 9176                    .update(cx, |_, window, _| window.activate_window())
 9177                    .ok();
 9178                return Some(workspace_window);
 9179            }
 9180        }
 9181        None
 9182    })
 9183}
 9184
 9185pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 9186    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 9187}
 9188
 9189pub fn workspace_windows_for_location(
 9190    serialized_location: &SerializedWorkspaceLocation,
 9191    cx: &App,
 9192) -> Vec<WindowHandle<MultiWorkspace>> {
 9193    cx.windows()
 9194        .into_iter()
 9195        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9196        .filter(|multi_workspace| {
 9197            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 9198                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 9199                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 9200                }
 9201                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 9202                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 9203                    a.distro_name == b.distro_name
 9204                }
 9205                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 9206                    a.container_id == b.container_id
 9207                }
 9208                #[cfg(any(test, feature = "test-support"))]
 9209                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 9210                    a.id == b.id
 9211                }
 9212                _ => false,
 9213            };
 9214
 9215            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 9216                multi_workspace.workspaces().any(|workspace| {
 9217                    match workspace.read(cx).workspace_location(cx) {
 9218                        WorkspaceLocation::Location(location, _) => {
 9219                            match (&location, serialized_location) {
 9220                                (
 9221                                    SerializedWorkspaceLocation::Local,
 9222                                    SerializedWorkspaceLocation::Local,
 9223                                ) => true,
 9224                                (
 9225                                    SerializedWorkspaceLocation::Remote(a),
 9226                                    SerializedWorkspaceLocation::Remote(b),
 9227                                ) => same_host(a, b),
 9228                                _ => false,
 9229                            }
 9230                        }
 9231                        _ => false,
 9232                    }
 9233                })
 9234            })
 9235        })
 9236        .collect()
 9237}
 9238
 9239pub async fn find_existing_workspace(
 9240    abs_paths: &[PathBuf],
 9241    open_options: &OpenOptions,
 9242    location: &SerializedWorkspaceLocation,
 9243    cx: &mut AsyncApp,
 9244) -> (
 9245    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 9246    OpenVisible,
 9247) {
 9248    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 9249    let mut open_visible = OpenVisible::All;
 9250    let mut best_match = None;
 9251
 9252    cx.update(|cx| {
 9253        for window in workspace_windows_for_location(location, cx) {
 9254            if let Ok(multi_workspace) = window.read(cx) {
 9255                for workspace in multi_workspace.workspaces() {
 9256                    let project = workspace.read(cx).project.read(cx);
 9257                    let m = project.visibility_for_paths(
 9258                        abs_paths,
 9259                        open_options.open_new_workspace == None,
 9260                        cx,
 9261                    );
 9262                    if m > best_match {
 9263                        existing = Some((window, workspace.clone()));
 9264                        best_match = m;
 9265                    } else if best_match.is_none() && open_options.open_new_workspace == Some(false)
 9266                    {
 9267                        existing = Some((window, workspace.clone()))
 9268                    }
 9269                }
 9270            }
 9271        }
 9272    });
 9273
 9274    // With -n, only reuse a window if the path is genuinely contained
 9275    // within an existing worktree (don't fall back to any arbitrary window).
 9276    if open_options.open_new_workspace == Some(true) && best_match.is_none() {
 9277        existing = None;
 9278    }
 9279
 9280    if open_options.open_new_workspace != Some(true) {
 9281        let all_paths_are_files = existing
 9282            .as_ref()
 9283            .and_then(|(_, target_workspace)| {
 9284                cx.update(|cx| {
 9285                    let workspace = target_workspace.read(cx);
 9286                    let project = workspace.project.read(cx);
 9287                    let path_style = workspace.path_style(cx);
 9288                    Some(!abs_paths.iter().any(|path| {
 9289                        let path = util::paths::SanitizedPath::new(path);
 9290                        project.worktrees(cx).any(|worktree| {
 9291                            let worktree = worktree.read(cx);
 9292                            let abs_path = worktree.abs_path();
 9293                            path_style
 9294                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 9295                                .and_then(|rel| worktree.entry_for_path(&rel))
 9296                                .is_some_and(|e| e.is_dir())
 9297                        })
 9298                    }))
 9299                })
 9300            })
 9301            .unwrap_or(false);
 9302
 9303        if open_options.open_new_workspace.is_none()
 9304            && existing.is_some()
 9305            && open_options.wait
 9306            && all_paths_are_files
 9307        {
 9308            cx.update(|cx| {
 9309                let windows = workspace_windows_for_location(location, cx);
 9310                let window = cx
 9311                    .active_window()
 9312                    .and_then(|window| window.downcast::<MultiWorkspace>())
 9313                    .filter(|window| windows.contains(window))
 9314                    .or_else(|| windows.into_iter().next());
 9315                if let Some(window) = window {
 9316                    if let Ok(multi_workspace) = window.read(cx) {
 9317                        let active_workspace = multi_workspace.workspace().clone();
 9318                        existing = Some((window, active_workspace));
 9319                        open_visible = OpenVisible::None;
 9320                    }
 9321                }
 9322            });
 9323        }
 9324    }
 9325    (existing, open_visible)
 9326}
 9327
 9328#[derive(Default, Clone)]
 9329pub struct OpenOptions {
 9330    pub visible: Option<OpenVisible>,
 9331    pub focus: Option<bool>,
 9332    pub open_new_workspace: Option<bool>,
 9333    pub force_existing_window: bool,
 9334    pub wait: bool,
 9335    pub requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9336    pub open_mode: OpenMode,
 9337    pub env: Option<HashMap<String, String>>,
 9338    pub open_in_dev_container: bool,
 9339}
 9340
 9341impl OpenOptions {
 9342    fn should_reuse_existing_window(&self) -> bool {
 9343        self.open_new_workspace.is_none() && self.open_mode != OpenMode::NewWindow
 9344    }
 9345}
 9346
 9347/// The result of opening a workspace via [`open_paths`], [`Workspace::new_local`],
 9348/// or [`Workspace::open_workspace_for_paths`].
 9349pub struct OpenResult {
 9350    pub window: WindowHandle<MultiWorkspace>,
 9351    pub workspace: Entity<Workspace>,
 9352    pub opened_items: Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 9353}
 9354
 9355/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 9356pub fn open_workspace_by_id(
 9357    workspace_id: WorkspaceId,
 9358    app_state: Arc<AppState>,
 9359    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 9360    cx: &mut App,
 9361) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 9362    let project_handle = Project::local(
 9363        app_state.client.clone(),
 9364        app_state.node_runtime.clone(),
 9365        app_state.user_store.clone(),
 9366        app_state.languages.clone(),
 9367        app_state.fs.clone(),
 9368        None,
 9369        project::LocalProjectFlags {
 9370            init_worktree_trust: true,
 9371            ..project::LocalProjectFlags::default()
 9372        },
 9373        cx,
 9374    );
 9375
 9376    let db = WorkspaceDb::global(cx);
 9377    let kvp = db::kvp::KeyValueStore::global(cx);
 9378    cx.spawn(async move |cx| {
 9379        let serialized_workspace = db
 9380            .workspace_for_id(workspace_id)
 9381            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 9382
 9383        let centered_layout = serialized_workspace.centered_layout;
 9384
 9385        let (window, workspace) = if let Some(window) = requesting_window {
 9386            let workspace = window.update(cx, |multi_workspace, window, cx| {
 9387                let workspace = cx.new(|cx| {
 9388                    let mut workspace = Workspace::new(
 9389                        Some(workspace_id),
 9390                        project_handle.clone(),
 9391                        app_state.clone(),
 9392                        window,
 9393                        cx,
 9394                    );
 9395                    workspace.centered_layout = centered_layout;
 9396                    workspace
 9397                });
 9398                multi_workspace.add(workspace.clone(), &*window, cx);
 9399                workspace
 9400            })?;
 9401            (window, workspace)
 9402        } else {
 9403            let window_bounds_override = window_bounds_env_override();
 9404
 9405            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 9406                (Some(WindowBounds::Windowed(bounds)), None)
 9407            } else if let Some(display) = serialized_workspace.display
 9408                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 9409            {
 9410                (Some(bounds.0), Some(display))
 9411            } else if let Some((display, bounds)) = persistence::read_default_window_bounds(&kvp) {
 9412                (Some(bounds), Some(display))
 9413            } else {
 9414                (None, None)
 9415            };
 9416
 9417            let options = cx.update(|cx| {
 9418                let mut options = (app_state.build_window_options)(display, cx);
 9419                options.window_bounds = window_bounds;
 9420                options
 9421            });
 9422
 9423            let window = cx.open_window(options, {
 9424                let app_state = app_state.clone();
 9425                let project_handle = project_handle.clone();
 9426                move |window, cx| {
 9427                    let workspace = cx.new(|cx| {
 9428                        let mut workspace = Workspace::new(
 9429                            Some(workspace_id),
 9430                            project_handle,
 9431                            app_state,
 9432                            window,
 9433                            cx,
 9434                        );
 9435                        workspace.centered_layout = centered_layout;
 9436                        workspace
 9437                    });
 9438                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9439                }
 9440            })?;
 9441
 9442            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 9443                multi_workspace.workspace().clone()
 9444            })?;
 9445
 9446            (window, workspace)
 9447        };
 9448
 9449        notify_if_database_failed(window, cx);
 9450
 9451        // Restore items from the serialized workspace
 9452        window
 9453            .update(cx, |_, window, cx| {
 9454                workspace.update(cx, |_workspace, cx| {
 9455                    open_items(Some(serialized_workspace), vec![], window, cx)
 9456                })
 9457            })?
 9458            .await?;
 9459
 9460        window.update(cx, |_, window, cx| {
 9461            workspace.update(cx, |workspace, cx| {
 9462                workspace.serialize_workspace(window, cx);
 9463            });
 9464        })?;
 9465
 9466        Ok(window)
 9467    })
 9468}
 9469
 9470#[allow(clippy::type_complexity)]
 9471pub fn open_paths(
 9472    abs_paths: &[PathBuf],
 9473    app_state: Arc<AppState>,
 9474    mut open_options: OpenOptions,
 9475    cx: &mut App,
 9476) -> Task<anyhow::Result<OpenResult>> {
 9477    let abs_paths = abs_paths.to_vec();
 9478    #[cfg(target_os = "windows")]
 9479    let wsl_path = abs_paths
 9480        .iter()
 9481        .find_map(|p| util::paths::WslPath::from_path(p));
 9482
 9483    cx.spawn(async move |cx| {
 9484        let (mut existing, mut open_visible) = find_existing_workspace(
 9485            &abs_paths,
 9486            &open_options,
 9487            &SerializedWorkspaceLocation::Local,
 9488            cx,
 9489        )
 9490        .await;
 9491
 9492        // Fallback: if no workspace contains the paths and all paths are files,
 9493        // prefer an existing local workspace window (active window first).
 9494        if open_options.should_reuse_existing_window() && existing.is_none() {
 9495            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 9496            let all_metadatas = futures::future::join_all(all_paths)
 9497                .await
 9498                .into_iter()
 9499                .filter_map(|result| result.ok().flatten());
 9500
 9501            if all_metadatas.into_iter().all(|file| !file.is_dir) {
 9502                cx.update(|cx| {
 9503                    let windows = workspace_windows_for_location(
 9504                        &SerializedWorkspaceLocation::Local,
 9505                        cx,
 9506                    );
 9507                    let window = cx
 9508                        .active_window()
 9509                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9510                        .filter(|window| windows.contains(window))
 9511                        .or_else(|| windows.into_iter().next());
 9512                    if let Some(window) = window {
 9513                        if let Ok(multi_workspace) = window.read(cx) {
 9514                            let active_workspace = multi_workspace.workspace().clone();
 9515                            existing = Some((window, active_workspace));
 9516                            open_visible = OpenVisible::None;
 9517                        }
 9518                    }
 9519                });
 9520            }
 9521        }
 9522
 9523        // Fallback for directories: when no flag is specified and no existing
 9524        // workspace matched, check the user's setting to decide whether to add
 9525        // the directory as a new workspace in the active window's MultiWorkspace
 9526        // or open a new window.
 9527        // Skip when requesting_window is already set: the caller (e.g.
 9528        // open_workspace_for_paths reusing an empty window) already chose the
 9529        // target window, so we must not open the sidebar as a side-effect.
 9530        if open_options.should_reuse_existing_window()
 9531            && existing.is_none()
 9532            && open_options.requesting_window.is_none()
 9533        {
 9534            let use_existing_window = open_options.force_existing_window
 9535                || cx.update(|cx| {
 9536                    WorkspaceSettings::get_global(cx).cli_default_open_behavior
 9537                        == settings::CliDefaultOpenBehavior::ExistingWindow
 9538                });
 9539
 9540            if use_existing_window {
 9541                let target_window = cx.update(|cx| {
 9542                    let windows = workspace_windows_for_location(
 9543                        &SerializedWorkspaceLocation::Local,
 9544                        cx,
 9545                    );
 9546                    let window = cx
 9547                        .active_window()
 9548                        .and_then(|window| window.downcast::<MultiWorkspace>())
 9549                        .filter(|window| windows.contains(window))
 9550                        .or_else(|| windows.into_iter().next());
 9551                    window.filter(|window| {
 9552                        window
 9553                            .read(cx)
 9554                            .is_ok_and(|mw| mw.multi_workspace_enabled(cx))
 9555                    })
 9556                });
 9557
 9558                if let Some(window) = target_window {
 9559                    open_options.requesting_window = Some(window);
 9560                    window
 9561                        .update(cx, |multi_workspace, _, cx| {
 9562                            multi_workspace.open_sidebar(cx);
 9563                        })
 9564                        .log_err();
 9565                }
 9566            }
 9567        }
 9568
 9569        let open_in_dev_container = open_options.open_in_dev_container;
 9570
 9571        let result = if let Some((existing, target_workspace)) = existing {
 9572            let open_task = existing
 9573                .update(cx, |multi_workspace, window, cx| {
 9574                    window.activate_window();
 9575                    multi_workspace.activate(target_workspace.clone(), window, cx);
 9576                    target_workspace.update(cx, |workspace, cx| {
 9577                        if open_in_dev_container {
 9578                            workspace.set_open_in_dev_container(true);
 9579                        }
 9580                        workspace.open_paths(
 9581                            abs_paths,
 9582                            OpenOptions {
 9583                                visible: Some(open_visible),
 9584                                ..Default::default()
 9585                            },
 9586                            None,
 9587                            window,
 9588                            cx,
 9589                        )
 9590                    })
 9591                })?
 9592                .await;
 9593
 9594            _ = existing.update(cx, |multi_workspace, _, cx| {
 9595                let workspace = multi_workspace.workspace().clone();
 9596                workspace.update(cx, |workspace, cx| {
 9597                    for item in open_task.iter().flatten() {
 9598                        if let Err(e) = item {
 9599                            workspace.show_error(&e, cx);
 9600                        }
 9601                    }
 9602                });
 9603            });
 9604
 9605            Ok(OpenResult { window: existing, workspace: target_workspace, opened_items: open_task })
 9606        } else {
 9607            let init = if open_in_dev_container {
 9608                Some(Box::new(|workspace: &mut Workspace, _window: &mut Window, _cx: &mut Context<Workspace>| {
 9609                    workspace.set_open_in_dev_container(true);
 9610                }) as Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>)
 9611            } else {
 9612                None
 9613            };
 9614            let result = cx
 9615                .update(move |cx| {
 9616                    Workspace::new_local(
 9617                        abs_paths,
 9618                        app_state.clone(),
 9619                        open_options.requesting_window,
 9620                        open_options.env,
 9621                        init,
 9622                        open_options.open_mode,
 9623                        cx,
 9624                    )
 9625                })
 9626                .await;
 9627
 9628            if let Ok(ref result) = result {
 9629                result.window
 9630                    .update(cx, |_, window, _cx| {
 9631                        window.activate_window();
 9632                    })
 9633                    .log_err();
 9634            }
 9635
 9636            result
 9637        };
 9638
 9639        #[cfg(target_os = "windows")]
 9640        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 9641            && let Ok(ref result) = result
 9642        {
 9643            result.window
 9644                .update(cx, move |multi_workspace, _window, cx| {
 9645                    struct OpenInWsl;
 9646                    let workspace = multi_workspace.workspace().clone();
 9647                    workspace.update(cx, |workspace, cx| {
 9648                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 9649                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 9650                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 9651                            cx.new(move |cx| {
 9652                                MessageNotification::new(msg, cx)
 9653                                    .primary_message("Open in WSL")
 9654                                    .primary_icon(IconName::FolderOpen)
 9655                                    .primary_on_click(move |window, cx| {
 9656                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 9657                                                distro: remote::WslConnectionOptions {
 9658                                                        distro_name: distro.clone(),
 9659                                                    user: None,
 9660                                                },
 9661                                                paths: vec![path.clone().into()],
 9662                                            }), cx)
 9663                                    })
 9664                            })
 9665                        });
 9666                    });
 9667                })
 9668                .unwrap();
 9669        };
 9670        result
 9671    })
 9672}
 9673
 9674pub fn open_new(
 9675    open_options: OpenOptions,
 9676    app_state: Arc<AppState>,
 9677    cx: &mut App,
 9678    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 9679) -> Task<anyhow::Result<()>> {
 9680    let addition = open_options.open_mode;
 9681    let task = Workspace::new_local(
 9682        Vec::new(),
 9683        app_state,
 9684        open_options.requesting_window,
 9685        open_options.env,
 9686        Some(Box::new(init)),
 9687        addition,
 9688        cx,
 9689    );
 9690    cx.spawn(async move |cx| {
 9691        let OpenResult { window, .. } = task.await?;
 9692        window
 9693            .update(cx, |_, window, _cx| {
 9694                window.activate_window();
 9695            })
 9696            .ok();
 9697        Ok(())
 9698    })
 9699}
 9700
 9701pub fn create_and_open_local_file(
 9702    path: &'static Path,
 9703    window: &mut Window,
 9704    cx: &mut Context<Workspace>,
 9705    default_content: impl 'static + Send + FnOnce() -> Rope,
 9706) -> Task<Result<Box<dyn ItemHandle>>> {
 9707    cx.spawn_in(window, async move |workspace, cx| {
 9708        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 9709        if !fs.is_file(path).await {
 9710            fs.create_file(path, Default::default()).await?;
 9711            fs.save(path, &default_content(), Default::default())
 9712                .await?;
 9713        }
 9714
 9715        workspace
 9716            .update_in(cx, |workspace, window, cx| {
 9717                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 9718                    let path = workspace
 9719                        .project
 9720                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 9721                    cx.spawn_in(window, async move |workspace, cx| {
 9722                        let path = path.await?;
 9723
 9724                        let path = fs.canonicalize(&path).await.unwrap_or(path);
 9725
 9726                        let mut items = workspace
 9727                            .update_in(cx, |workspace, window, cx| {
 9728                                workspace.open_paths(
 9729                                    vec![path.to_path_buf()],
 9730                                    OpenOptions {
 9731                                        visible: Some(OpenVisible::None),
 9732                                        ..Default::default()
 9733                                    },
 9734                                    None,
 9735                                    window,
 9736                                    cx,
 9737                                )
 9738                            })?
 9739                            .await;
 9740                        let item = items.pop().flatten();
 9741                        item.with_context(|| format!("path {path:?} is not a file"))?
 9742                    })
 9743                })
 9744            })?
 9745            .await?
 9746            .await
 9747    })
 9748}
 9749
 9750pub fn open_remote_project_with_new_connection(
 9751    window: WindowHandle<MultiWorkspace>,
 9752    remote_connection: Arc<dyn RemoteConnection>,
 9753    cancel_rx: oneshot::Receiver<()>,
 9754    delegate: Arc<dyn RemoteClientDelegate>,
 9755    app_state: Arc<AppState>,
 9756    paths: Vec<PathBuf>,
 9757    cx: &mut App,
 9758) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9759    cx.spawn(async move |cx| {
 9760        let (workspace_id, serialized_workspace) =
 9761            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 9762                .await?;
 9763
 9764        let session = match cx
 9765            .update(|cx| {
 9766                remote::RemoteClient::new(
 9767                    ConnectionIdentifier::Workspace(workspace_id.0),
 9768                    remote_connection,
 9769                    cancel_rx,
 9770                    delegate,
 9771                    cx,
 9772                )
 9773            })
 9774            .await?
 9775        {
 9776            Some(result) => result,
 9777            None => return Ok(Vec::new()),
 9778        };
 9779
 9780        let project = cx.update(|cx| {
 9781            project::Project::remote(
 9782                session,
 9783                app_state.client.clone(),
 9784                app_state.node_runtime.clone(),
 9785                app_state.user_store.clone(),
 9786                app_state.languages.clone(),
 9787                app_state.fs.clone(),
 9788                true,
 9789                cx,
 9790            )
 9791        });
 9792
 9793        open_remote_project_inner(
 9794            project,
 9795            paths,
 9796            workspace_id,
 9797            serialized_workspace,
 9798            app_state,
 9799            window,
 9800            None,
 9801            cx,
 9802        )
 9803        .await
 9804    })
 9805}
 9806
 9807pub fn open_remote_project_with_existing_connection(
 9808    connection_options: RemoteConnectionOptions,
 9809    project: Entity<Project>,
 9810    paths: Vec<PathBuf>,
 9811    app_state: Arc<AppState>,
 9812    window: WindowHandle<MultiWorkspace>,
 9813    provisional_project_group_key: Option<ProjectGroupKey>,
 9814    cx: &mut AsyncApp,
 9815) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 9816    cx.spawn(async move |cx| {
 9817        let (workspace_id, serialized_workspace) =
 9818            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 9819
 9820        open_remote_project_inner(
 9821            project,
 9822            paths,
 9823            workspace_id,
 9824            serialized_workspace,
 9825            app_state,
 9826            window,
 9827            provisional_project_group_key,
 9828            cx,
 9829        )
 9830        .await
 9831    })
 9832}
 9833
 9834async fn open_remote_project_inner(
 9835    project: Entity<Project>,
 9836    paths: Vec<PathBuf>,
 9837    workspace_id: WorkspaceId,
 9838    serialized_workspace: Option<SerializedWorkspace>,
 9839    app_state: Arc<AppState>,
 9840    window: WindowHandle<MultiWorkspace>,
 9841    provisional_project_group_key: Option<ProjectGroupKey>,
 9842    cx: &mut AsyncApp,
 9843) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 9844    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9845    let toolchains = db.toolchains(workspace_id).await?;
 9846    for (toolchain, worktree_path, path) in toolchains {
 9847        project
 9848            .update(cx, |this, cx| {
 9849                let Some(worktree_id) =
 9850                    this.find_worktree(&worktree_path, cx)
 9851                        .and_then(|(worktree, rel_path)| {
 9852                            if rel_path.is_empty() {
 9853                                Some(worktree.read(cx).id())
 9854                            } else {
 9855                                None
 9856                            }
 9857                        })
 9858                else {
 9859                    return Task::ready(None);
 9860                };
 9861
 9862                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 9863            })
 9864            .await;
 9865    }
 9866    let mut project_paths_to_open = vec![];
 9867    let mut project_path_errors = vec![];
 9868
 9869    for path in paths {
 9870        let result = cx
 9871            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 9872            .await;
 9873        match result {
 9874            Ok((_, project_path)) => {
 9875                project_paths_to_open.push((path.clone(), Some(project_path)));
 9876            }
 9877            Err(error) => {
 9878                project_path_errors.push(error);
 9879            }
 9880        };
 9881    }
 9882
 9883    if project_paths_to_open.is_empty() {
 9884        return Err(project_path_errors.pop().context("no paths given")?);
 9885    }
 9886
 9887    let workspace = window.update(cx, |multi_workspace, window, cx| {
 9888        telemetry::event!("SSH Project Opened");
 9889
 9890        let new_workspace = cx.new(|cx| {
 9891            let mut workspace =
 9892                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 9893            workspace.update_history(cx);
 9894
 9895            if let Some(ref serialized) = serialized_workspace {
 9896                workspace.centered_layout = serialized.centered_layout;
 9897            }
 9898
 9899            workspace
 9900        });
 9901
 9902        if let Some(project_group_key) = provisional_project_group_key.clone() {
 9903            multi_workspace.retain_workspace(new_workspace.clone(), project_group_key, cx);
 9904        }
 9905        multi_workspace.activate(new_workspace.clone(), window, cx);
 9906        new_workspace
 9907    })?;
 9908
 9909    let items = window
 9910        .update(cx, |_, window, cx| {
 9911            window.activate_window();
 9912            workspace.update(cx, |_workspace, cx| {
 9913                open_items(serialized_workspace, project_paths_to_open, window, cx)
 9914            })
 9915        })?
 9916        .await?;
 9917
 9918    workspace.update(cx, |workspace, cx| {
 9919        for error in project_path_errors {
 9920            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9921                if let Some(path) = error.error_tag("path") {
 9922                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9923                }
 9924            } else {
 9925                workspace.show_error(&error, cx)
 9926            }
 9927        }
 9928    });
 9929
 9930    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9931}
 9932
 9933fn deserialize_remote_project(
 9934    connection_options: RemoteConnectionOptions,
 9935    paths: Vec<PathBuf>,
 9936    cx: &AsyncApp,
 9937) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9938    let db = cx.update(|cx| WorkspaceDb::global(cx));
 9939    cx.background_spawn(async move {
 9940        let remote_connection_id = db
 9941            .get_or_create_remote_connection(connection_options)
 9942            .await?;
 9943
 9944        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
 9945
 9946        let workspace_id = if let Some(workspace_id) =
 9947            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9948        {
 9949            workspace_id
 9950        } else {
 9951            db.next_id().await?
 9952        };
 9953
 9954        Ok((workspace_id, serialized_workspace))
 9955    })
 9956}
 9957
 9958pub fn join_in_room_project(
 9959    project_id: u64,
 9960    follow_user_id: u64,
 9961    app_state: Arc<AppState>,
 9962    cx: &mut App,
 9963) -> Task<Result<()>> {
 9964    let windows = cx.windows();
 9965    cx.spawn(async move |cx| {
 9966        let existing_window_and_workspace: Option<(
 9967            WindowHandle<MultiWorkspace>,
 9968            Entity<Workspace>,
 9969        )> = windows.into_iter().find_map(|window_handle| {
 9970            window_handle
 9971                .downcast::<MultiWorkspace>()
 9972                .and_then(|window_handle| {
 9973                    window_handle
 9974                        .update(cx, |multi_workspace, _window, cx| {
 9975                            multi_workspace
 9976                                .workspaces()
 9977                                .find(|workspace| {
 9978                                    workspace.read(cx).project().read(cx).remote_id()
 9979                                        == Some(project_id)
 9980                                })
 9981                                .map(|workspace| (window_handle, workspace.clone()))
 9982                        })
 9983                        .unwrap_or(None)
 9984                })
 9985        });
 9986
 9987        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9988            existing_window_and_workspace
 9989        {
 9990            existing_window
 9991                .update(cx, |multi_workspace, window, cx| {
 9992                    multi_workspace.activate(target_workspace, window, cx);
 9993                })
 9994                .ok();
 9995            existing_window
 9996        } else {
 9997            let active_call = cx.update(|cx| GlobalAnyActiveCall::global(cx).clone());
 9998            let project = cx
 9999                .update(|cx| {
10000                    active_call.0.join_project(
10001                        project_id,
10002                        app_state.languages.clone(),
10003                        app_state.fs.clone(),
10004                        cx,
10005                    )
10006                })
10007                .await?;
10008
10009            let window_bounds_override = window_bounds_env_override();
10010            cx.update(|cx| {
10011                let mut options = (app_state.build_window_options)(None, cx);
10012                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
10013                cx.open_window(options, |window, cx| {
10014                    let workspace = cx.new(|cx| {
10015                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
10016                    });
10017                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
10018                })
10019            })?
10020        };
10021
10022        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
10023            cx.activate(true);
10024            window.activate_window();
10025
10026            // We set the active workspace above, so this is the correct workspace.
10027            let workspace = multi_workspace.workspace().clone();
10028            workspace.update(cx, |workspace, cx| {
10029                let follow_peer_id = GlobalAnyActiveCall::try_global(cx)
10030                    .and_then(|call| call.0.peer_id_for_user_in_room(follow_user_id, cx))
10031                    .or_else(|| {
10032                        // If we couldn't follow the given user, follow the host instead.
10033                        let collaborator = workspace
10034                            .project()
10035                            .read(cx)
10036                            .collaborators()
10037                            .values()
10038                            .find(|collaborator| collaborator.is_host)?;
10039                        Some(collaborator.peer_id)
10040                    });
10041
10042                if let Some(follow_peer_id) = follow_peer_id {
10043                    workspace.follow(follow_peer_id, window, cx);
10044                }
10045            });
10046        })?;
10047
10048        anyhow::Ok(())
10049    })
10050}
10051
10052pub fn reload(cx: &mut App) {
10053    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
10054    let mut workspace_windows = cx
10055        .windows()
10056        .into_iter()
10057        .filter_map(|window| window.downcast::<MultiWorkspace>())
10058        .collect::<Vec<_>>();
10059
10060    // If multiple windows have unsaved changes, and need a save prompt,
10061    // prompt in the active window before switching to a different window.
10062    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
10063
10064    let mut prompt = None;
10065    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
10066        prompt = window
10067            .update(cx, |_, window, cx| {
10068                window.prompt(
10069                    PromptLevel::Info,
10070                    "Are you sure you want to restart?",
10071                    None,
10072                    &["Restart", "Cancel"],
10073                    cx,
10074                )
10075            })
10076            .ok();
10077    }
10078
10079    cx.spawn(async move |cx| {
10080        if let Some(prompt) = prompt {
10081            let answer = prompt.await?;
10082            if answer != 0 {
10083                return anyhow::Ok(());
10084            }
10085        }
10086
10087        // If the user cancels any save prompt, then keep the app open.
10088        for window in workspace_windows {
10089            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
10090                let workspace = multi_workspace.workspace().clone();
10091                workspace.update(cx, |workspace, cx| {
10092                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
10093                })
10094            }) && !should_close.await?
10095            {
10096                return anyhow::Ok(());
10097            }
10098        }
10099        cx.update(|cx| cx.restart());
10100        anyhow::Ok(())
10101    })
10102    .detach_and_log_err(cx);
10103}
10104
10105fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
10106    let mut parts = value.split(',');
10107    let x: usize = parts.next()?.parse().ok()?;
10108    let y: usize = parts.next()?.parse().ok()?;
10109    Some(point(px(x as f32), px(y as f32)))
10110}
10111
10112fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
10113    let mut parts = value.split(',');
10114    let width: usize = parts.next()?.parse().ok()?;
10115    let height: usize = parts.next()?.parse().ok()?;
10116    Some(size(px(width as f32), px(height as f32)))
10117}
10118
10119/// Add client-side decorations (rounded corners, shadows, resize handling) when
10120/// appropriate.
10121///
10122/// The `border_radius_tiling` parameter allows overriding which corners get
10123/// rounded, independently of the actual window tiling state. This is used
10124/// specifically for the workspace switcher sidebar: when the sidebar is open,
10125/// we want square corners on the left (so the sidebar appears flush with the
10126/// window edge) but we still need the shadow padding for proper visual
10127/// appearance. Unlike actual window tiling, this only affects border radius -
10128/// not padding or shadows.
10129pub fn client_side_decorations(
10130    element: impl IntoElement,
10131    window: &mut Window,
10132    cx: &mut App,
10133    border_radius_tiling: Tiling,
10134) -> Stateful<Div> {
10135    const BORDER_SIZE: Pixels = px(1.0);
10136    let decorations = window.window_decorations();
10137    let tiling = match decorations {
10138        Decorations::Server => Tiling::default(),
10139        Decorations::Client { tiling } => tiling,
10140    };
10141
10142    match decorations {
10143        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
10144        Decorations::Server => window.set_client_inset(px(0.0)),
10145    }
10146
10147    struct GlobalResizeEdge(ResizeEdge);
10148    impl Global for GlobalResizeEdge {}
10149
10150    div()
10151        .id("window-backdrop")
10152        .bg(transparent_black())
10153        .map(|div| match decorations {
10154            Decorations::Server => div,
10155            Decorations::Client { .. } => div
10156                .when(
10157                    !(tiling.top
10158                        || tiling.right
10159                        || border_radius_tiling.top
10160                        || border_radius_tiling.right),
10161                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10162                )
10163                .when(
10164                    !(tiling.top
10165                        || tiling.left
10166                        || border_radius_tiling.top
10167                        || border_radius_tiling.left),
10168                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10169                )
10170                .when(
10171                    !(tiling.bottom
10172                        || tiling.right
10173                        || border_radius_tiling.bottom
10174                        || border_radius_tiling.right),
10175                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10176                )
10177                .when(
10178                    !(tiling.bottom
10179                        || tiling.left
10180                        || border_radius_tiling.bottom
10181                        || border_radius_tiling.left),
10182                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10183                )
10184                .when(!tiling.top, |div| {
10185                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
10186                })
10187                .when(!tiling.bottom, |div| {
10188                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
10189                })
10190                .when(!tiling.left, |div| {
10191                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
10192                })
10193                .when(!tiling.right, |div| {
10194                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
10195                })
10196                .on_mouse_move(move |e, window, cx| {
10197                    let size = window.window_bounds().get_bounds().size;
10198                    let pos = e.position;
10199
10200                    let new_edge =
10201                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
10202
10203                    let edge = cx.try_global::<GlobalResizeEdge>();
10204                    if new_edge != edge.map(|edge| edge.0) {
10205                        window
10206                            .window_handle()
10207                            .update(cx, |workspace, _, cx| {
10208                                cx.notify(workspace.entity_id());
10209                            })
10210                            .ok();
10211                    }
10212                })
10213                .on_mouse_down(MouseButton::Left, move |e, window, _| {
10214                    let size = window.window_bounds().get_bounds().size;
10215                    let pos = e.position;
10216
10217                    let edge = match resize_edge(
10218                        pos,
10219                        theme::CLIENT_SIDE_DECORATION_SHADOW,
10220                        size,
10221                        tiling,
10222                    ) {
10223                        Some(value) => value,
10224                        None => return,
10225                    };
10226
10227                    window.start_window_resize(edge);
10228                }),
10229        })
10230        .size_full()
10231        .child(
10232            div()
10233                .cursor(CursorStyle::Arrow)
10234                .map(|div| match decorations {
10235                    Decorations::Server => div,
10236                    Decorations::Client { .. } => div
10237                        .border_color(cx.theme().colors().border)
10238                        .when(
10239                            !(tiling.top
10240                                || tiling.right
10241                                || border_radius_tiling.top
10242                                || border_radius_tiling.right),
10243                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10244                        )
10245                        .when(
10246                            !(tiling.top
10247                                || tiling.left
10248                                || border_radius_tiling.top
10249                                || border_radius_tiling.left),
10250                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10251                        )
10252                        .when(
10253                            !(tiling.bottom
10254                                || tiling.right
10255                                || border_radius_tiling.bottom
10256                                || border_radius_tiling.right),
10257                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10258                        )
10259                        .when(
10260                            !(tiling.bottom
10261                                || tiling.left
10262                                || border_radius_tiling.bottom
10263                                || border_radius_tiling.left),
10264                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
10265                        )
10266                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
10267                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
10268                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
10269                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
10270                        .when(!tiling.is_tiled(), |div| {
10271                            div.shadow(vec![gpui::BoxShadow {
10272                                color: Hsla {
10273                                    h: 0.,
10274                                    s: 0.,
10275                                    l: 0.,
10276                                    a: 0.4,
10277                                },
10278                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
10279                                spread_radius: px(0.),
10280                                offset: point(px(0.0), px(0.0)),
10281                            }])
10282                        }),
10283                })
10284                .on_mouse_move(|_e, _, cx| {
10285                    cx.stop_propagation();
10286                })
10287                .size_full()
10288                .child(element),
10289        )
10290        .map(|div| match decorations {
10291            Decorations::Server => div,
10292            Decorations::Client { tiling, .. } => div.child(
10293                canvas(
10294                    |_bounds, window, _| {
10295                        window.insert_hitbox(
10296                            Bounds::new(
10297                                point(px(0.0), px(0.0)),
10298                                window.window_bounds().get_bounds().size,
10299                            ),
10300                            HitboxBehavior::Normal,
10301                        )
10302                    },
10303                    move |_bounds, hitbox, window, cx| {
10304                        let mouse = window.mouse_position();
10305                        let size = window.window_bounds().get_bounds().size;
10306                        let Some(edge) =
10307                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
10308                        else {
10309                            return;
10310                        };
10311                        cx.set_global(GlobalResizeEdge(edge));
10312                        window.set_cursor_style(
10313                            match edge {
10314                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
10315                                ResizeEdge::Left | ResizeEdge::Right => {
10316                                    CursorStyle::ResizeLeftRight
10317                                }
10318                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
10319                                    CursorStyle::ResizeUpLeftDownRight
10320                                }
10321                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
10322                                    CursorStyle::ResizeUpRightDownLeft
10323                                }
10324                            },
10325                            &hitbox,
10326                        );
10327                    },
10328                )
10329                .size_full()
10330                .absolute(),
10331            ),
10332        })
10333}
10334
10335fn resize_edge(
10336    pos: Point<Pixels>,
10337    shadow_size: Pixels,
10338    window_size: Size<Pixels>,
10339    tiling: Tiling,
10340) -> Option<ResizeEdge> {
10341    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
10342    if bounds.contains(&pos) {
10343        return None;
10344    }
10345
10346    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
10347    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
10348    if !tiling.top && top_left_bounds.contains(&pos) {
10349        return Some(ResizeEdge::TopLeft);
10350    }
10351
10352    let top_right_bounds = Bounds::new(
10353        Point::new(window_size.width - corner_size.width, px(0.)),
10354        corner_size,
10355    );
10356    if !tiling.top && top_right_bounds.contains(&pos) {
10357        return Some(ResizeEdge::TopRight);
10358    }
10359
10360    let bottom_left_bounds = Bounds::new(
10361        Point::new(px(0.), window_size.height - corner_size.height),
10362        corner_size,
10363    );
10364    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
10365        return Some(ResizeEdge::BottomLeft);
10366    }
10367
10368    let bottom_right_bounds = Bounds::new(
10369        Point::new(
10370            window_size.width - corner_size.width,
10371            window_size.height - corner_size.height,
10372        ),
10373        corner_size,
10374    );
10375    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
10376        return Some(ResizeEdge::BottomRight);
10377    }
10378
10379    if !tiling.top && pos.y < shadow_size {
10380        Some(ResizeEdge::Top)
10381    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
10382        Some(ResizeEdge::Bottom)
10383    } else if !tiling.left && pos.x < shadow_size {
10384        Some(ResizeEdge::Left)
10385    } else if !tiling.right && pos.x > window_size.width - shadow_size {
10386        Some(ResizeEdge::Right)
10387    } else {
10388        None
10389    }
10390}
10391
10392fn join_pane_into_active(
10393    active_pane: &Entity<Pane>,
10394    pane: &Entity<Pane>,
10395    window: &mut Window,
10396    cx: &mut App,
10397) {
10398    if pane == active_pane {
10399    } else if pane.read(cx).items_len() == 0 {
10400        pane.update(cx, |_, cx| {
10401            cx.emit(pane::Event::Remove {
10402                focus_on_pane: None,
10403            });
10404        })
10405    } else {
10406        move_all_items(pane, active_pane, window, cx);
10407    }
10408}
10409
10410fn move_all_items(
10411    from_pane: &Entity<Pane>,
10412    to_pane: &Entity<Pane>,
10413    window: &mut Window,
10414    cx: &mut App,
10415) {
10416    let destination_is_different = from_pane != to_pane;
10417    let mut moved_items = 0;
10418    for (item_ix, item_handle) in from_pane
10419        .read(cx)
10420        .items()
10421        .enumerate()
10422        .map(|(ix, item)| (ix, item.clone()))
10423        .collect::<Vec<_>>()
10424    {
10425        let ix = item_ix - moved_items;
10426        if destination_is_different {
10427            // Close item from previous pane
10428            from_pane.update(cx, |source, cx| {
10429                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
10430            });
10431            moved_items += 1;
10432        }
10433
10434        // This automatically removes duplicate items in the pane
10435        to_pane.update(cx, |destination, cx| {
10436            destination.add_item(item_handle, true, true, None, window, cx);
10437            window.focus(&destination.focus_handle(cx), cx)
10438        });
10439    }
10440}
10441
10442pub fn move_item(
10443    source: &Entity<Pane>,
10444    destination: &Entity<Pane>,
10445    item_id_to_move: EntityId,
10446    destination_index: usize,
10447    activate: bool,
10448    window: &mut Window,
10449    cx: &mut App,
10450) {
10451    let Some((item_ix, item_handle)) = source
10452        .read(cx)
10453        .items()
10454        .enumerate()
10455        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
10456        .map(|(ix, item)| (ix, item.clone()))
10457    else {
10458        // Tab was closed during drag
10459        return;
10460    };
10461
10462    if source != destination {
10463        // Close item from previous pane
10464        source.update(cx, |source, cx| {
10465            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
10466        });
10467    }
10468
10469    // This automatically removes duplicate items in the pane
10470    destination.update(cx, |destination, cx| {
10471        destination.add_item_inner(
10472            item_handle,
10473            activate,
10474            activate,
10475            activate,
10476            Some(destination_index),
10477            window,
10478            cx,
10479        );
10480        if activate {
10481            window.focus(&destination.focus_handle(cx), cx)
10482        }
10483    });
10484}
10485
10486pub fn move_active_item(
10487    source: &Entity<Pane>,
10488    destination: &Entity<Pane>,
10489    focus_destination: bool,
10490    close_if_empty: bool,
10491    window: &mut Window,
10492    cx: &mut App,
10493) {
10494    if source == destination {
10495        return;
10496    }
10497    let Some(active_item) = source.read(cx).active_item() else {
10498        return;
10499    };
10500    source.update(cx, |source_pane, cx| {
10501        let item_id = active_item.item_id();
10502        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
10503        destination.update(cx, |target_pane, cx| {
10504            target_pane.add_item(
10505                active_item,
10506                focus_destination,
10507                focus_destination,
10508                Some(target_pane.items_len()),
10509                window,
10510                cx,
10511            );
10512        });
10513    });
10514}
10515
10516pub fn clone_active_item(
10517    workspace_id: Option<WorkspaceId>,
10518    source: &Entity<Pane>,
10519    destination: &Entity<Pane>,
10520    focus_destination: bool,
10521    window: &mut Window,
10522    cx: &mut App,
10523) {
10524    if source == destination {
10525        return;
10526    }
10527    let Some(active_item) = source.read(cx).active_item() else {
10528        return;
10529    };
10530    if !active_item.can_split(cx) {
10531        return;
10532    }
10533    let destination = destination.downgrade();
10534    let task = active_item.clone_on_split(workspace_id, window, cx);
10535    window
10536        .spawn(cx, async move |cx| {
10537            let Some(clone) = task.await else {
10538                return;
10539            };
10540            destination
10541                .update_in(cx, |target_pane, window, cx| {
10542                    target_pane.add_item(
10543                        clone,
10544                        focus_destination,
10545                        focus_destination,
10546                        Some(target_pane.items_len()),
10547                        window,
10548                        cx,
10549                    );
10550                })
10551                .log_err();
10552        })
10553        .detach();
10554}
10555
10556#[derive(Debug)]
10557pub struct WorkspacePosition {
10558    pub window_bounds: Option<WindowBounds>,
10559    pub display: Option<Uuid>,
10560    pub centered_layout: bool,
10561}
10562
10563pub fn remote_workspace_position_from_db(
10564    connection_options: RemoteConnectionOptions,
10565    paths_to_open: &[PathBuf],
10566    cx: &App,
10567) -> Task<Result<WorkspacePosition>> {
10568    let paths = paths_to_open.to_vec();
10569    let db = WorkspaceDb::global(cx);
10570    let kvp = db::kvp::KeyValueStore::global(cx);
10571
10572    cx.background_spawn(async move {
10573        let remote_connection_id = db
10574            .get_or_create_remote_connection(connection_options)
10575            .await
10576            .context("fetching serialized ssh project")?;
10577        let serialized_workspace = db.remote_workspace_for_roots(&paths, remote_connection_id);
10578
10579        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
10580            (Some(WindowBounds::Windowed(bounds)), None)
10581        } else {
10582            let restorable_bounds = serialized_workspace
10583                .as_ref()
10584                .and_then(|workspace| {
10585                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
10586                })
10587                .or_else(|| persistence::read_default_window_bounds(&kvp));
10588
10589            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
10590                (Some(serialized_bounds), Some(serialized_display))
10591            } else {
10592                (None, None)
10593            }
10594        };
10595
10596        let centered_layout = serialized_workspace
10597            .as_ref()
10598            .map(|w| w.centered_layout)
10599            .unwrap_or(false);
10600
10601        Ok(WorkspacePosition {
10602            window_bounds,
10603            display,
10604            centered_layout,
10605        })
10606    })
10607}
10608
10609pub fn with_active_or_new_workspace(
10610    cx: &mut App,
10611    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
10612) {
10613    match cx
10614        .active_window()
10615        .and_then(|w| w.downcast::<MultiWorkspace>())
10616    {
10617        Some(multi_workspace) => {
10618            cx.defer(move |cx| {
10619                multi_workspace
10620                    .update(cx, |multi_workspace, window, cx| {
10621                        let workspace = multi_workspace.workspace().clone();
10622                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
10623                    })
10624                    .log_err();
10625            });
10626        }
10627        None => {
10628            let app_state = AppState::global(cx);
10629            open_new(
10630                OpenOptions::default(),
10631                app_state,
10632                cx,
10633                move |workspace, window, cx| f(workspace, window, cx),
10634            )
10635            .detach_and_log_err(cx);
10636        }
10637    }
10638}
10639
10640/// Reads a panel's pixel size from its legacy KVP format and deletes the legacy
10641/// key. This migration path only runs once per panel per workspace.
10642fn load_legacy_panel_size(
10643    panel_key: &str,
10644    dock_position: DockPosition,
10645    workspace: &Workspace,
10646    cx: &mut App,
10647) -> Option<Pixels> {
10648    #[derive(Deserialize)]
10649    struct LegacyPanelState {
10650        #[serde(default)]
10651        width: Option<Pixels>,
10652        #[serde(default)]
10653        height: Option<Pixels>,
10654    }
10655
10656    let workspace_id = workspace
10657        .database_id()
10658        .map(|id| i64::from(id).to_string())
10659        .or_else(|| workspace.session_id())?;
10660
10661    let legacy_key = match panel_key {
10662        "ProjectPanel" => {
10663            format!("{}-{:?}", "ProjectPanel", workspace_id)
10664        }
10665        "OutlinePanel" => {
10666            format!("{}-{:?}", "OutlinePanel", workspace_id)
10667        }
10668        "GitPanel" => {
10669            format!("{}-{:?}", "GitPanel", workspace_id)
10670        }
10671        "TerminalPanel" => {
10672            format!("{:?}-{:?}", "TerminalPanel", workspace_id)
10673        }
10674        _ => return None,
10675    };
10676
10677    let kvp = db::kvp::KeyValueStore::global(cx);
10678    let json = kvp.read_kvp(&legacy_key).log_err().flatten()?;
10679    let state = serde_json::from_str::<LegacyPanelState>(&json).log_err()?;
10680    let size = match dock_position {
10681        DockPosition::Bottom => state.height,
10682        DockPosition::Left | DockPosition::Right => state.width,
10683    }?;
10684
10685    cx.background_spawn(async move { kvp.delete_kvp(legacy_key).await })
10686        .detach_and_log_err(cx);
10687
10688    Some(size)
10689}
10690
10691#[cfg(test)]
10692mod tests {
10693    use std::{cell::RefCell, rc::Rc, sync::Arc, time::Duration};
10694
10695    use super::*;
10696    use crate::{
10697        dock::{PanelEvent, test::TestPanel},
10698        item::{
10699            ItemBufferKind, ItemEvent,
10700            test::{TestItem, TestProjectItem},
10701        },
10702    };
10703    use fs::FakeFs;
10704    use gpui::{
10705        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
10706        UpdateGlobal, VisualTestContext, px,
10707    };
10708    use project::{Project, ProjectEntryId};
10709    use serde_json::json;
10710    use settings::SettingsStore;
10711    use util::path;
10712    use util::rel_path::rel_path;
10713
10714    #[gpui::test]
10715    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
10716        init_test(cx);
10717
10718        let fs = FakeFs::new(cx.executor());
10719        let project = Project::test(fs, [], cx).await;
10720        let (workspace, cx) =
10721            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10722
10723        // Adding an item with no ambiguity renders the tab without detail.
10724        let item1 = cx.new(|cx| {
10725            let mut item = TestItem::new(cx);
10726            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
10727            item
10728        });
10729        workspace.update_in(cx, |workspace, window, cx| {
10730            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10731        });
10732        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
10733
10734        // Adding an item that creates ambiguity increases the level of detail on
10735        // both tabs.
10736        let item2 = cx.new_window_entity(|_window, cx| {
10737            let mut item = TestItem::new(cx);
10738            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10739            item
10740        });
10741        workspace.update_in(cx, |workspace, window, cx| {
10742            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10743        });
10744        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10745        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10746
10747        // Adding an item that creates ambiguity increases the level of detail only
10748        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
10749        // we stop at the highest detail available.
10750        let item3 = cx.new(|cx| {
10751            let mut item = TestItem::new(cx);
10752            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
10753            item
10754        });
10755        workspace.update_in(cx, |workspace, window, cx| {
10756            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10757        });
10758        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
10759        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10760        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
10761    }
10762
10763    #[gpui::test]
10764    async fn test_tracking_active_path(cx: &mut TestAppContext) {
10765        init_test(cx);
10766
10767        let fs = FakeFs::new(cx.executor());
10768        fs.insert_tree(
10769            "/root1",
10770            json!({
10771                "one.txt": "",
10772                "two.txt": "",
10773            }),
10774        )
10775        .await;
10776        fs.insert_tree(
10777            "/root2",
10778            json!({
10779                "three.txt": "",
10780            }),
10781        )
10782        .await;
10783
10784        let project = Project::test(fs, ["root1".as_ref()], cx).await;
10785        let (workspace, cx) =
10786            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10787        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10788        let worktree_id = project.update(cx, |project, cx| {
10789            project.worktrees(cx).next().unwrap().read(cx).id()
10790        });
10791
10792        let item1 = cx.new(|cx| {
10793            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
10794        });
10795        let item2 = cx.new(|cx| {
10796            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
10797        });
10798
10799        // Add an item to an empty pane
10800        workspace.update_in(cx, |workspace, window, cx| {
10801            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
10802        });
10803        project.update(cx, |project, cx| {
10804            assert_eq!(
10805                project.active_entry(),
10806                project
10807                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10808                    .map(|e| e.id)
10809            );
10810        });
10811        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10812
10813        // Add a second item to a non-empty pane
10814        workspace.update_in(cx, |workspace, window, cx| {
10815            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
10816        });
10817        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
10818        project.update(cx, |project, cx| {
10819            assert_eq!(
10820                project.active_entry(),
10821                project
10822                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
10823                    .map(|e| e.id)
10824            );
10825        });
10826
10827        // Close the active item
10828        pane.update_in(cx, |pane, window, cx| {
10829            pane.close_active_item(&Default::default(), window, cx)
10830        })
10831        .await
10832        .unwrap();
10833        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
10834        project.update(cx, |project, cx| {
10835            assert_eq!(
10836                project.active_entry(),
10837                project
10838                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
10839                    .map(|e| e.id)
10840            );
10841        });
10842
10843        // Add a project folder
10844        project
10845            .update(cx, |project, cx| {
10846                project.find_or_create_worktree("root2", true, cx)
10847            })
10848            .await
10849            .unwrap();
10850        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
10851
10852        // Remove a project folder
10853        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
10854        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
10855    }
10856
10857    #[gpui::test]
10858    async fn test_close_window(cx: &mut TestAppContext) {
10859        init_test(cx);
10860
10861        let fs = FakeFs::new(cx.executor());
10862        fs.insert_tree("/root", json!({ "one": "" })).await;
10863
10864        let project = Project::test(fs, ["root".as_ref()], cx).await;
10865        let (workspace, cx) =
10866            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
10867
10868        // When there are no dirty items, there's nothing to do.
10869        let item1 = cx.new(TestItem::new);
10870        workspace.update_in(cx, |w, window, cx| {
10871            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
10872        });
10873        let task = workspace.update_in(cx, |w, window, cx| {
10874            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10875        });
10876        assert!(task.await.unwrap());
10877
10878        // When there are dirty untitled items, prompt to save each one. If the user
10879        // cancels any prompt, then abort.
10880        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10881        let item3 = cx.new(|cx| {
10882            TestItem::new(cx)
10883                .with_dirty(true)
10884                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10885        });
10886        workspace.update_in(cx, |w, window, cx| {
10887            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10888            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10889        });
10890        let task = workspace.update_in(cx, |w, window, cx| {
10891            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
10892        });
10893        cx.executor().run_until_parked();
10894        cx.simulate_prompt_answer("Cancel"); // cancel save all
10895        cx.executor().run_until_parked();
10896        assert!(!cx.has_pending_prompt());
10897        assert!(!task.await.unwrap());
10898    }
10899
10900    #[gpui::test]
10901    async fn test_multi_workspace_close_window_multiple_workspaces_cancel(cx: &mut TestAppContext) {
10902        init_test(cx);
10903
10904        let fs = FakeFs::new(cx.executor());
10905        fs.insert_tree("/root", json!({ "one": "" })).await;
10906
10907        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10908        let project_b = Project::test(fs, ["root".as_ref()], cx).await;
10909        let multi_workspace_handle =
10910            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10911        cx.run_until_parked();
10912
10913        multi_workspace_handle
10914            .update(cx, |mw, _window, cx| {
10915                mw.open_sidebar(cx);
10916            })
10917            .unwrap();
10918
10919        let workspace_a = multi_workspace_handle
10920            .read_with(cx, |mw, _| mw.workspace().clone())
10921            .unwrap();
10922
10923        let workspace_b = multi_workspace_handle
10924            .update(cx, |mw, window, cx| {
10925                mw.test_add_workspace(project_b, window, cx)
10926            })
10927            .unwrap();
10928
10929        // Activate workspace A
10930        multi_workspace_handle
10931            .update(cx, |mw, window, cx| {
10932                mw.activate(workspace_a.clone(), window, cx);
10933            })
10934            .unwrap();
10935
10936        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
10937
10938        // Workspace A has a clean item
10939        let item_a = cx.new(TestItem::new);
10940        workspace_a.update_in(cx, |w, window, cx| {
10941            w.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
10942        });
10943
10944        // Workspace B has a dirty item
10945        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
10946        workspace_b.update_in(cx, |w, window, cx| {
10947            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
10948        });
10949
10950        // Verify workspace A is active
10951        multi_workspace_handle
10952            .read_with(cx, |mw, _| {
10953                assert_eq!(mw.workspace(), &workspace_a);
10954            })
10955            .unwrap();
10956
10957        // Dispatch CloseWindow — workspace A will pass, workspace B will prompt
10958        multi_workspace_handle
10959            .update(cx, |mw, window, cx| {
10960                mw.close_window(&CloseWindow, window, cx);
10961            })
10962            .unwrap();
10963        cx.run_until_parked();
10964
10965        // Workspace B should now be active since it has dirty items that need attention
10966        multi_workspace_handle
10967            .read_with(cx, |mw, _| {
10968                assert_eq!(
10969                    mw.workspace(),
10970                    &workspace_b,
10971                    "workspace B should be activated when it prompts"
10972                );
10973            })
10974            .unwrap();
10975
10976        // User cancels the save prompt from workspace B
10977        cx.simulate_prompt_answer("Cancel");
10978        cx.run_until_parked();
10979
10980        // Window should still exist because workspace B's close was cancelled
10981        assert!(
10982            multi_workspace_handle.update(cx, |_, _, _| ()).is_ok(),
10983            "window should still exist after cancelling one workspace's close"
10984        );
10985    }
10986
10987    #[gpui::test]
10988    async fn test_remove_workspace_prompts_for_unsaved_changes(cx: &mut TestAppContext) {
10989        init_test(cx);
10990
10991        let fs = FakeFs::new(cx.executor());
10992        fs.insert_tree("/root", json!({ "one": "" })).await;
10993
10994        let project_a = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10995        let project_b = Project::test(fs.clone(), ["root".as_ref()], cx).await;
10996        let multi_workspace_handle =
10997            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
10998        cx.run_until_parked();
10999
11000        multi_workspace_handle
11001            .update(cx, |mw, _window, cx| mw.open_sidebar(cx))
11002            .unwrap();
11003
11004        let workspace_a = multi_workspace_handle
11005            .read_with(cx, |mw, _| mw.workspace().clone())
11006            .unwrap();
11007
11008        let workspace_b = multi_workspace_handle
11009            .update(cx, |mw, window, cx| {
11010                mw.test_add_workspace(project_b, window, cx)
11011            })
11012            .unwrap();
11013
11014        // Activate workspace A.
11015        multi_workspace_handle
11016            .update(cx, |mw, window, cx| {
11017                mw.activate(workspace_a.clone(), window, cx);
11018            })
11019            .unwrap();
11020
11021        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
11022
11023        // Workspace B has a dirty item.
11024        let item_b = cx.new(|cx| TestItem::new(cx).with_dirty(true));
11025        workspace_b.update_in(cx, |w, window, cx| {
11026            w.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx)
11027        });
11028
11029        // Try to remove workspace B. It should prompt because of the dirty item.
11030        let remove_task = multi_workspace_handle
11031            .update(cx, |mw, window, cx| {
11032                mw.remove([workspace_b.clone()], |_, _, _| unreachable!(), window, cx)
11033            })
11034            .unwrap();
11035        cx.run_until_parked();
11036
11037        // The prompt should have activated workspace B.
11038        multi_workspace_handle
11039            .read_with(cx, |mw, _| {
11040                assert_eq!(
11041                    mw.workspace(),
11042                    &workspace_b,
11043                    "workspace B should be active while prompting"
11044                );
11045            })
11046            .unwrap();
11047
11048        // Cancel the prompt — user stays on workspace B.
11049        cx.simulate_prompt_answer("Cancel");
11050        cx.run_until_parked();
11051        let removed = remove_task.await.unwrap();
11052        assert!(!removed, "removal should have been cancelled");
11053
11054        multi_workspace_handle
11055            .read_with(cx, |mw, _cx| {
11056                assert_eq!(
11057                    mw.workspace(),
11058                    &workspace_b,
11059                    "user should stay on workspace B after cancelling"
11060                );
11061                assert_eq!(mw.workspaces().count(), 2, "both workspaces should remain");
11062            })
11063            .unwrap();
11064
11065        // Try again. This time accept the prompt.
11066        let remove_task = multi_workspace_handle
11067            .update(cx, |mw, window, cx| {
11068                // First switch back to A.
11069                mw.activate(workspace_a.clone(), window, cx);
11070                mw.remove([workspace_b.clone()], |_, _, _| unreachable!(), window, cx)
11071            })
11072            .unwrap();
11073        cx.run_until_parked();
11074
11075        // Accept the save prompt.
11076        cx.simulate_prompt_answer("Don't Save");
11077        cx.run_until_parked();
11078        let removed = remove_task.await.unwrap();
11079        assert!(removed, "removal should have succeeded");
11080
11081        // Should be back on workspace A, and B should be gone.
11082        multi_workspace_handle
11083            .read_with(cx, |mw, _cx| {
11084                assert_eq!(
11085                    mw.workspace(),
11086                    &workspace_a,
11087                    "should be back on workspace A after removing B"
11088                );
11089                assert_eq!(mw.workspaces().count(), 1, "only workspace A should remain");
11090            })
11091            .unwrap();
11092    }
11093
11094    #[gpui::test]
11095    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
11096        init_test(cx);
11097
11098        // Register TestItem as a serializable item
11099        cx.update(|cx| {
11100            register_serializable_item::<TestItem>(cx);
11101        });
11102
11103        let fs = FakeFs::new(cx.executor());
11104        fs.insert_tree("/root", json!({ "one": "" })).await;
11105
11106        let project = Project::test(fs, ["root".as_ref()], cx).await;
11107        let (workspace, cx) =
11108            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
11109
11110        // When there are dirty untitled items, but they can serialize, then there is no prompt.
11111        let item1 = cx.new(|cx| {
11112            TestItem::new(cx)
11113                .with_dirty(true)
11114                .with_serialize(|| Some(Task::ready(Ok(()))))
11115        });
11116        let item2 = cx.new(|cx| {
11117            TestItem::new(cx)
11118                .with_dirty(true)
11119                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11120                .with_serialize(|| Some(Task::ready(Ok(()))))
11121        });
11122        workspace.update_in(cx, |w, window, cx| {
11123            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
11124            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
11125        });
11126        let task = workspace.update_in(cx, |w, window, cx| {
11127            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
11128        });
11129        assert!(task.await.unwrap());
11130    }
11131
11132    #[gpui::test]
11133    async fn test_close_pane_items(cx: &mut TestAppContext) {
11134        init_test(cx);
11135
11136        let fs = FakeFs::new(cx.executor());
11137
11138        let project = Project::test(fs, None, cx).await;
11139        let (workspace, cx) =
11140            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11141
11142        let item1 = cx.new(|cx| {
11143            TestItem::new(cx)
11144                .with_dirty(true)
11145                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11146        });
11147        let item2 = cx.new(|cx| {
11148            TestItem::new(cx)
11149                .with_dirty(true)
11150                .with_conflict(true)
11151                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11152        });
11153        let item3 = cx.new(|cx| {
11154            TestItem::new(cx)
11155                .with_dirty(true)
11156                .with_conflict(true)
11157                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
11158        });
11159        let item4 = cx.new(|cx| {
11160            TestItem::new(cx).with_dirty(true).with_project_items(&[{
11161                let project_item = TestProjectItem::new_untitled(cx);
11162                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11163                project_item
11164            }])
11165        });
11166        let pane = workspace.update_in(cx, |workspace, window, cx| {
11167            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
11168            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
11169            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
11170            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
11171            workspace.active_pane().clone()
11172        });
11173
11174        let close_items = pane.update_in(cx, |pane, window, cx| {
11175            pane.activate_item(1, true, true, window, cx);
11176            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
11177            let item1_id = item1.item_id();
11178            let item3_id = item3.item_id();
11179            let item4_id = item4.item_id();
11180            pane.close_items(window, cx, SaveIntent::Close, &move |id| {
11181                [item1_id, item3_id, item4_id].contains(&id)
11182            })
11183        });
11184        cx.executor().run_until_parked();
11185
11186        assert!(cx.has_pending_prompt());
11187        cx.simulate_prompt_answer("Save all");
11188
11189        cx.executor().run_until_parked();
11190
11191        // Item 1 is saved. There's a prompt to save item 3.
11192        pane.update(cx, |pane, cx| {
11193            assert_eq!(item1.read(cx).save_count, 1);
11194            assert_eq!(item1.read(cx).save_as_count, 0);
11195            assert_eq!(item1.read(cx).reload_count, 0);
11196            assert_eq!(pane.items_len(), 3);
11197            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
11198        });
11199        assert!(cx.has_pending_prompt());
11200
11201        // Cancel saving item 3.
11202        cx.simulate_prompt_answer("Discard");
11203        cx.executor().run_until_parked();
11204
11205        // Item 3 is reloaded. There's a prompt to save item 4.
11206        pane.update(cx, |pane, cx| {
11207            assert_eq!(item3.read(cx).save_count, 0);
11208            assert_eq!(item3.read(cx).save_as_count, 0);
11209            assert_eq!(item3.read(cx).reload_count, 1);
11210            assert_eq!(pane.items_len(), 2);
11211            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
11212        });
11213
11214        // There's a prompt for a path for item 4.
11215        cx.simulate_new_path_selection(|_| Some(Default::default()));
11216        close_items.await.unwrap();
11217
11218        // The requested items are closed.
11219        pane.update(cx, |pane, cx| {
11220            assert_eq!(item4.read(cx).save_count, 0);
11221            assert_eq!(item4.read(cx).save_as_count, 1);
11222            assert_eq!(item4.read(cx).reload_count, 0);
11223            assert_eq!(pane.items_len(), 1);
11224            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
11225        });
11226    }
11227
11228    #[gpui::test]
11229    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
11230        init_test(cx);
11231
11232        let fs = FakeFs::new(cx.executor());
11233        let project = Project::test(fs, [], cx).await;
11234        let (workspace, cx) =
11235            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11236
11237        // Create several workspace items with single project entries, and two
11238        // workspace items with multiple project entries.
11239        let single_entry_items = (0..=4)
11240            .map(|project_entry_id| {
11241                cx.new(|cx| {
11242                    TestItem::new(cx)
11243                        .with_dirty(true)
11244                        .with_project_items(&[dirty_project_item(
11245                            project_entry_id,
11246                            &format!("{project_entry_id}.txt"),
11247                            cx,
11248                        )])
11249                })
11250            })
11251            .collect::<Vec<_>>();
11252        let item_2_3 = cx.new(|cx| {
11253            TestItem::new(cx)
11254                .with_dirty(true)
11255                .with_buffer_kind(ItemBufferKind::Multibuffer)
11256                .with_project_items(&[
11257                    single_entry_items[2].read(cx).project_items[0].clone(),
11258                    single_entry_items[3].read(cx).project_items[0].clone(),
11259                ])
11260        });
11261        let item_3_4 = cx.new(|cx| {
11262            TestItem::new(cx)
11263                .with_dirty(true)
11264                .with_buffer_kind(ItemBufferKind::Multibuffer)
11265                .with_project_items(&[
11266                    single_entry_items[3].read(cx).project_items[0].clone(),
11267                    single_entry_items[4].read(cx).project_items[0].clone(),
11268                ])
11269        });
11270
11271        // Create two panes that contain the following project entries:
11272        //   left pane:
11273        //     multi-entry items:   (2, 3)
11274        //     single-entry items:  0, 2, 3, 4
11275        //   right pane:
11276        //     single-entry items:  4, 1
11277        //     multi-entry items:   (3, 4)
11278        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
11279            let left_pane = workspace.active_pane().clone();
11280            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
11281            workspace.add_item_to_active_pane(
11282                single_entry_items[0].boxed_clone(),
11283                None,
11284                true,
11285                window,
11286                cx,
11287            );
11288            workspace.add_item_to_active_pane(
11289                single_entry_items[2].boxed_clone(),
11290                None,
11291                true,
11292                window,
11293                cx,
11294            );
11295            workspace.add_item_to_active_pane(
11296                single_entry_items[3].boxed_clone(),
11297                None,
11298                true,
11299                window,
11300                cx,
11301            );
11302            workspace.add_item_to_active_pane(
11303                single_entry_items[4].boxed_clone(),
11304                None,
11305                true,
11306                window,
11307                cx,
11308            );
11309
11310            let right_pane =
11311                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
11312
11313            let boxed_clone = single_entry_items[1].boxed_clone();
11314            let right_pane = window.spawn(cx, async move |cx| {
11315                right_pane.await.inspect(|right_pane| {
11316                    right_pane
11317                        .update_in(cx, |pane, window, cx| {
11318                            pane.add_item(boxed_clone, true, true, None, window, cx);
11319                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
11320                        })
11321                        .unwrap();
11322                })
11323            });
11324
11325            (left_pane, right_pane)
11326        });
11327        let right_pane = right_pane.await.unwrap();
11328        cx.focus(&right_pane);
11329
11330        let close = right_pane.update_in(cx, |pane, window, cx| {
11331            pane.close_all_items(&CloseAllItems::default(), window, cx)
11332                .unwrap()
11333        });
11334        cx.executor().run_until_parked();
11335
11336        let msg = cx.pending_prompt().unwrap().0;
11337        assert!(msg.contains("1.txt"));
11338        assert!(!msg.contains("2.txt"));
11339        assert!(!msg.contains("3.txt"));
11340        assert!(!msg.contains("4.txt"));
11341
11342        // With best-effort close, cancelling item 1 keeps it open but items 4
11343        // and (3,4) still close since their entries exist in left pane.
11344        cx.simulate_prompt_answer("Cancel");
11345        close.await;
11346
11347        right_pane.read_with(cx, |pane, _| {
11348            assert_eq!(pane.items_len(), 1);
11349        });
11350
11351        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
11352        left_pane
11353            .update_in(cx, |left_pane, window, cx| {
11354                left_pane.close_item_by_id(
11355                    single_entry_items[3].entity_id(),
11356                    SaveIntent::Skip,
11357                    window,
11358                    cx,
11359                )
11360            })
11361            .await
11362            .unwrap();
11363
11364        let close = left_pane.update_in(cx, |pane, window, cx| {
11365            pane.close_all_items(&CloseAllItems::default(), window, cx)
11366                .unwrap()
11367        });
11368        cx.executor().run_until_parked();
11369
11370        let details = cx.pending_prompt().unwrap().1;
11371        assert!(details.contains("0.txt"));
11372        assert!(details.contains("3.txt"));
11373        assert!(details.contains("4.txt"));
11374        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
11375        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
11376        // assert!(!details.contains("2.txt"));
11377
11378        cx.simulate_prompt_answer("Save all");
11379        cx.executor().run_until_parked();
11380        close.await;
11381
11382        left_pane.read_with(cx, |pane, _| {
11383            assert_eq!(pane.items_len(), 0);
11384        });
11385    }
11386
11387    #[gpui::test]
11388    async fn test_autosave(cx: &mut gpui::TestAppContext) {
11389        init_test(cx);
11390
11391        let fs = FakeFs::new(cx.executor());
11392        let project = Project::test(fs, [], cx).await;
11393        let (workspace, cx) =
11394            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11395        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11396
11397        let item = cx.new(|cx| {
11398            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11399        });
11400        let item_id = item.entity_id();
11401        workspace.update_in(cx, |workspace, window, cx| {
11402            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11403        });
11404
11405        // Autosave on window change.
11406        item.update(cx, |item, cx| {
11407            SettingsStore::update_global(cx, |settings, cx| {
11408                settings.update_user_settings(cx, |settings| {
11409                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
11410                })
11411            });
11412            item.is_dirty = true;
11413        });
11414
11415        // Deactivating the window saves the file.
11416        cx.deactivate_window();
11417        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11418
11419        // Re-activating the window doesn't save the file.
11420        cx.update(|window, _| window.activate_window());
11421        cx.executor().run_until_parked();
11422        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11423
11424        // Autosave on focus change.
11425        item.update_in(cx, |item, window, cx| {
11426            cx.focus_self(window);
11427            SettingsStore::update_global(cx, |settings, cx| {
11428                settings.update_user_settings(cx, |settings| {
11429                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11430                })
11431            });
11432            item.is_dirty = true;
11433        });
11434        // Blurring the item saves the file.
11435        item.update_in(cx, |_, window, _| window.blur());
11436        cx.executor().run_until_parked();
11437        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
11438
11439        // Deactivating the window still saves the file.
11440        item.update_in(cx, |item, window, cx| {
11441            cx.focus_self(window);
11442            item.is_dirty = true;
11443        });
11444        cx.deactivate_window();
11445        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
11446
11447        // Autosave after delay.
11448        item.update(cx, |item, cx| {
11449            SettingsStore::update_global(cx, |settings, cx| {
11450                settings.update_user_settings(cx, |settings| {
11451                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
11452                        milliseconds: 500.into(),
11453                    });
11454                })
11455            });
11456            item.is_dirty = true;
11457            cx.emit(ItemEvent::Edit);
11458        });
11459
11460        // Delay hasn't fully expired, so the file is still dirty and unsaved.
11461        cx.executor().advance_clock(Duration::from_millis(250));
11462        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
11463
11464        // After delay expires, the file is saved.
11465        cx.executor().advance_clock(Duration::from_millis(250));
11466        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11467
11468        // Autosave after delay, should save earlier than delay if tab is closed
11469        item.update(cx, |item, cx| {
11470            item.is_dirty = true;
11471            cx.emit(ItemEvent::Edit);
11472        });
11473        cx.executor().advance_clock(Duration::from_millis(250));
11474        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
11475
11476        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
11477        pane.update_in(cx, |pane, window, cx| {
11478            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11479        })
11480        .await
11481        .unwrap();
11482        assert!(!cx.has_pending_prompt());
11483        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11484
11485        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11486        workspace.update_in(cx, |workspace, window, cx| {
11487            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11488        });
11489        item.update_in(cx, |item, _window, cx| {
11490            item.is_dirty = true;
11491            for project_item in &mut item.project_items {
11492                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11493            }
11494        });
11495        cx.run_until_parked();
11496        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
11497
11498        // Autosave on focus change, ensuring closing the tab counts as such.
11499        item.update(cx, |item, cx| {
11500            SettingsStore::update_global(cx, |settings, cx| {
11501                settings.update_user_settings(cx, |settings| {
11502                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11503                })
11504            });
11505            item.is_dirty = true;
11506            for project_item in &mut item.project_items {
11507                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
11508            }
11509        });
11510
11511        pane.update_in(cx, |pane, window, cx| {
11512            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11513        })
11514        .await
11515        .unwrap();
11516        assert!(!cx.has_pending_prompt());
11517        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11518
11519        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
11520        workspace.update_in(cx, |workspace, window, cx| {
11521            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11522        });
11523        item.update_in(cx, |item, window, cx| {
11524            item.project_items[0].update(cx, |item, _| {
11525                item.entry_id = None;
11526            });
11527            item.is_dirty = true;
11528            window.blur();
11529        });
11530        cx.run_until_parked();
11531        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11532
11533        // Ensure autosave is prevented for deleted files also when closing the buffer.
11534        let _close_items = pane.update_in(cx, |pane, window, cx| {
11535            pane.close_items(window, cx, SaveIntent::Close, &move |id| id == item_id)
11536        });
11537        cx.run_until_parked();
11538        assert!(cx.has_pending_prompt());
11539        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
11540    }
11541
11542    #[gpui::test]
11543    async fn test_autosave_on_focus_change_in_multibuffer(cx: &mut gpui::TestAppContext) {
11544        init_test(cx);
11545
11546        let fs = FakeFs::new(cx.executor());
11547        let project = Project::test(fs, [], cx).await;
11548        let (workspace, cx) =
11549            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11550
11551        // Create a multibuffer-like item with two child focus handles,
11552        // simulating individual buffer editors within a multibuffer.
11553        let item = cx.new(|cx| {
11554            TestItem::new(cx)
11555                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11556                .with_child_focus_handles(2, cx)
11557        });
11558        workspace.update_in(cx, |workspace, window, cx| {
11559            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11560        });
11561
11562        // Set autosave to OnFocusChange and focus the first child handle,
11563        // simulating the user's cursor being inside one of the multibuffer's excerpts.
11564        item.update_in(cx, |item, window, cx| {
11565            SettingsStore::update_global(cx, |settings, cx| {
11566                settings.update_user_settings(cx, |settings| {
11567                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
11568                })
11569            });
11570            item.is_dirty = true;
11571            window.focus(&item.child_focus_handles[0], cx);
11572        });
11573        cx.executor().run_until_parked();
11574        item.read_with(cx, |item, _| assert_eq!(item.save_count, 0));
11575
11576        // Moving focus from one child to another within the same item should
11577        // NOT trigger autosave — focus is still within the item's focus hierarchy.
11578        item.update_in(cx, |item, window, cx| {
11579            window.focus(&item.child_focus_handles[1], cx);
11580        });
11581        cx.executor().run_until_parked();
11582        item.read_with(cx, |item, _| {
11583            assert_eq!(
11584                item.save_count, 0,
11585                "Switching focus between children within the same item should not autosave"
11586            );
11587        });
11588
11589        // Blurring the item saves the file. This is the core regression scenario:
11590        // with `on_blur`, this would NOT trigger because `on_blur` only fires when
11591        // the item's own focus handle is the leaf that lost focus. In a multibuffer,
11592        // the leaf is always a child focus handle, so `on_blur` never detected
11593        // focus leaving the item.
11594        item.update_in(cx, |_, window, _| window.blur());
11595        cx.executor().run_until_parked();
11596        item.read_with(cx, |item, _| {
11597            assert_eq!(
11598                item.save_count, 1,
11599                "Blurring should trigger autosave when focus was on a child of the item"
11600            );
11601        });
11602
11603        // Deactivating the window should also trigger autosave when a child of
11604        // the multibuffer item currently owns focus.
11605        item.update_in(cx, |item, window, cx| {
11606            item.is_dirty = true;
11607            window.focus(&item.child_focus_handles[0], cx);
11608        });
11609        cx.executor().run_until_parked();
11610        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
11611
11612        cx.deactivate_window();
11613        item.read_with(cx, |item, _| {
11614            assert_eq!(
11615                item.save_count, 2,
11616                "Deactivating window should trigger autosave when focus was on a child"
11617            );
11618        });
11619    }
11620
11621    #[gpui::test]
11622    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
11623        init_test(cx);
11624
11625        let fs = FakeFs::new(cx.executor());
11626
11627        let project = Project::test(fs, [], cx).await;
11628        let (workspace, cx) =
11629            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11630
11631        let item = cx.new(|cx| {
11632            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11633        });
11634        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11635        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
11636        let toolbar_notify_count = Rc::new(RefCell::new(0));
11637
11638        workspace.update_in(cx, |workspace, window, cx| {
11639            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
11640            let toolbar_notification_count = toolbar_notify_count.clone();
11641            cx.observe_in(&toolbar, window, move |_, _, _, _| {
11642                *toolbar_notification_count.borrow_mut() += 1
11643            })
11644            .detach();
11645        });
11646
11647        pane.read_with(cx, |pane, _| {
11648            assert!(!pane.can_navigate_backward());
11649            assert!(!pane.can_navigate_forward());
11650        });
11651
11652        item.update_in(cx, |item, _, cx| {
11653            item.set_state("one".to_string(), cx);
11654        });
11655
11656        // Toolbar must be notified to re-render the navigation buttons
11657        assert_eq!(*toolbar_notify_count.borrow(), 1);
11658
11659        pane.read_with(cx, |pane, _| {
11660            assert!(pane.can_navigate_backward());
11661            assert!(!pane.can_navigate_forward());
11662        });
11663
11664        workspace
11665            .update_in(cx, |workspace, window, cx| {
11666                workspace.go_back(pane.downgrade(), window, cx)
11667            })
11668            .await
11669            .unwrap();
11670
11671        assert_eq!(*toolbar_notify_count.borrow(), 2);
11672        pane.read_with(cx, |pane, _| {
11673            assert!(!pane.can_navigate_backward());
11674            assert!(pane.can_navigate_forward());
11675        });
11676    }
11677
11678    /// Tests that the navigation history deduplicates entries for the same item.
11679    ///
11680    /// When navigating back and forth between items (e.g., A -> B -> A -> B -> A -> B -> C),
11681    /// the navigation history deduplicates by keeping only the most recent visit to each item,
11682    /// resulting in [A, B, C] instead of [A, B, A, B, A, B, C]. This ensures that Go Back (Ctrl-O)
11683    /// navigates through unique items efficiently: C -> B -> A, rather than bouncing between
11684    /// repeated entries: C -> B -> A -> B -> A -> B -> A.
11685    ///
11686    /// This behavior prevents the navigation history from growing unnecessarily large and provides
11687    /// a better user experience by eliminating redundant navigation steps when jumping between files.
11688    #[gpui::test]
11689    async fn test_navigation_history_deduplication(cx: &mut gpui::TestAppContext) {
11690        init_test(cx);
11691
11692        let fs = FakeFs::new(cx.executor());
11693        let project = Project::test(fs, [], cx).await;
11694        let (workspace, cx) =
11695            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11696
11697        let item_a = cx.new(|cx| {
11698            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "a.txt", cx)])
11699        });
11700        let item_b = cx.new(|cx| {
11701            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "b.txt", cx)])
11702        });
11703        let item_c = cx.new(|cx| {
11704            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "c.txt", cx)])
11705        });
11706
11707        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11708
11709        workspace.update_in(cx, |workspace, window, cx| {
11710            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx);
11711            workspace.add_item_to_active_pane(Box::new(item_b.clone()), None, true, window, cx);
11712            workspace.add_item_to_active_pane(Box::new(item_c.clone()), None, true, window, cx);
11713        });
11714
11715        workspace.update_in(cx, |workspace, window, cx| {
11716            workspace.activate_item(&item_a, false, false, window, cx);
11717        });
11718        cx.run_until_parked();
11719
11720        workspace.update_in(cx, |workspace, window, cx| {
11721            workspace.activate_item(&item_b, false, false, window, cx);
11722        });
11723        cx.run_until_parked();
11724
11725        workspace.update_in(cx, |workspace, window, cx| {
11726            workspace.activate_item(&item_a, false, false, window, cx);
11727        });
11728        cx.run_until_parked();
11729
11730        workspace.update_in(cx, |workspace, window, cx| {
11731            workspace.activate_item(&item_b, false, false, window, cx);
11732        });
11733        cx.run_until_parked();
11734
11735        workspace.update_in(cx, |workspace, window, cx| {
11736            workspace.activate_item(&item_a, false, false, window, cx);
11737        });
11738        cx.run_until_parked();
11739
11740        workspace.update_in(cx, |workspace, window, cx| {
11741            workspace.activate_item(&item_b, false, false, window, cx);
11742        });
11743        cx.run_until_parked();
11744
11745        workspace.update_in(cx, |workspace, window, cx| {
11746            workspace.activate_item(&item_c, false, false, window, cx);
11747        });
11748        cx.run_until_parked();
11749
11750        let backward_count = pane.read_with(cx, |pane, cx| {
11751            let mut count = 0;
11752            pane.nav_history().for_each_entry(cx, &mut |_, _| {
11753                count += 1;
11754            });
11755            count
11756        });
11757        assert!(
11758            backward_count <= 4,
11759            "Should have at most 4 entries, got {}",
11760            backward_count
11761        );
11762
11763        workspace
11764            .update_in(cx, |workspace, window, cx| {
11765                workspace.go_back(pane.downgrade(), window, cx)
11766            })
11767            .await
11768            .unwrap();
11769
11770        let active_item = workspace.read_with(cx, |workspace, cx| {
11771            workspace.active_item(cx).unwrap().item_id()
11772        });
11773        assert_eq!(
11774            active_item,
11775            item_b.entity_id(),
11776            "After first go_back, should be at item B"
11777        );
11778
11779        workspace
11780            .update_in(cx, |workspace, window, cx| {
11781                workspace.go_back(pane.downgrade(), window, cx)
11782            })
11783            .await
11784            .unwrap();
11785
11786        let active_item = workspace.read_with(cx, |workspace, cx| {
11787            workspace.active_item(cx).unwrap().item_id()
11788        });
11789        assert_eq!(
11790            active_item,
11791            item_a.entity_id(),
11792            "After second go_back, should be at item A"
11793        );
11794
11795        pane.read_with(cx, |pane, _| {
11796            assert!(pane.can_navigate_forward(), "Should be able to go forward");
11797        });
11798    }
11799
11800    #[gpui::test]
11801    async fn test_activate_last_pane(cx: &mut gpui::TestAppContext) {
11802        init_test(cx);
11803        let fs = FakeFs::new(cx.executor());
11804        let project = Project::test(fs, [], cx).await;
11805        let (multi_workspace, cx) =
11806            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
11807        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
11808
11809        workspace.update_in(cx, |workspace, window, cx| {
11810            let first_item = cx.new(|cx| {
11811                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
11812            });
11813            workspace.add_item_to_active_pane(Box::new(first_item), None, true, window, cx);
11814            workspace.split_pane(
11815                workspace.active_pane().clone(),
11816                SplitDirection::Right,
11817                window,
11818                cx,
11819            );
11820            workspace.split_pane(
11821                workspace.active_pane().clone(),
11822                SplitDirection::Right,
11823                window,
11824                cx,
11825            );
11826        });
11827
11828        let (first_pane_id, target_last_pane_id) = workspace.update(cx, |workspace, _cx| {
11829            let panes = workspace.center.panes();
11830            assert!(panes.len() >= 2);
11831            (
11832                panes.first().expect("at least one pane").entity_id(),
11833                panes.last().expect("at least one pane").entity_id(),
11834            )
11835        });
11836
11837        workspace.update_in(cx, |workspace, window, cx| {
11838            workspace.activate_pane_at_index(&ActivatePane(0), window, cx);
11839        });
11840        workspace.update(cx, |workspace, _| {
11841            assert_eq!(workspace.active_pane().entity_id(), first_pane_id);
11842            assert_ne!(workspace.active_pane().entity_id(), target_last_pane_id);
11843        });
11844
11845        cx.dispatch_action(ActivateLastPane);
11846
11847        workspace.update(cx, |workspace, _| {
11848            assert_eq!(workspace.active_pane().entity_id(), target_last_pane_id);
11849        });
11850    }
11851
11852    #[gpui::test]
11853    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
11854        init_test(cx);
11855        let fs = FakeFs::new(cx.executor());
11856
11857        let project = Project::test(fs, [], cx).await;
11858        let (workspace, cx) =
11859            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11860
11861        let panel = workspace.update_in(cx, |workspace, window, cx| {
11862            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11863            workspace.add_panel(panel.clone(), window, cx);
11864
11865            workspace
11866                .right_dock()
11867                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11868
11869            panel
11870        });
11871
11872        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11873        pane.update_in(cx, |pane, window, cx| {
11874            let item = cx.new(TestItem::new);
11875            pane.add_item(Box::new(item), true, true, None, window, cx);
11876        });
11877
11878        // Transfer focus from center to panel
11879        workspace.update_in(cx, |workspace, window, cx| {
11880            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11881        });
11882
11883        workspace.update_in(cx, |workspace, window, cx| {
11884            assert!(workspace.right_dock().read(cx).is_open());
11885            assert!(!panel.is_zoomed(window, cx));
11886            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11887        });
11888
11889        // Transfer focus from panel to center
11890        workspace.update_in(cx, |workspace, window, cx| {
11891            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11892        });
11893
11894        workspace.update_in(cx, |workspace, window, cx| {
11895            assert!(workspace.right_dock().read(cx).is_open());
11896            assert!(!panel.is_zoomed(window, cx));
11897            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11898            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11899        });
11900
11901        // Close the dock
11902        workspace.update_in(cx, |workspace, window, cx| {
11903            workspace.toggle_dock(DockPosition::Right, window, cx);
11904        });
11905
11906        workspace.update_in(cx, |workspace, window, cx| {
11907            assert!(!workspace.right_dock().read(cx).is_open());
11908            assert!(!panel.is_zoomed(window, cx));
11909            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11910            assert!(pane.read(cx).focus_handle(cx).contains_focused(window, cx));
11911        });
11912
11913        // Open the dock
11914        workspace.update_in(cx, |workspace, window, cx| {
11915            workspace.toggle_dock(DockPosition::Right, window, cx);
11916        });
11917
11918        workspace.update_in(cx, |workspace, window, cx| {
11919            assert!(workspace.right_dock().read(cx).is_open());
11920            assert!(!panel.is_zoomed(window, cx));
11921            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11922        });
11923
11924        // Focus and zoom panel
11925        panel.update_in(cx, |panel, window, cx| {
11926            cx.focus_self(window);
11927            panel.set_zoomed(true, window, cx)
11928        });
11929
11930        workspace.update_in(cx, |workspace, window, cx| {
11931            assert!(workspace.right_dock().read(cx).is_open());
11932            assert!(panel.is_zoomed(window, cx));
11933            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11934        });
11935
11936        // Transfer focus to the center closes the dock
11937        workspace.update_in(cx, |workspace, window, cx| {
11938            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11939        });
11940
11941        workspace.update_in(cx, |workspace, window, cx| {
11942            assert!(!workspace.right_dock().read(cx).is_open());
11943            assert!(panel.is_zoomed(window, cx));
11944            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11945        });
11946
11947        // Transferring focus back to the panel keeps it zoomed
11948        workspace.update_in(cx, |workspace, window, cx| {
11949            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11950        });
11951
11952        workspace.update_in(cx, |workspace, window, cx| {
11953            assert!(workspace.right_dock().read(cx).is_open());
11954            assert!(panel.is_zoomed(window, cx));
11955            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11956        });
11957
11958        // Close the dock while it is zoomed
11959        workspace.update_in(cx, |workspace, window, cx| {
11960            workspace.toggle_dock(DockPosition::Right, window, cx)
11961        });
11962
11963        workspace.update_in(cx, |workspace, window, cx| {
11964            assert!(!workspace.right_dock().read(cx).is_open());
11965            assert!(panel.is_zoomed(window, cx));
11966            assert!(workspace.zoomed.is_none());
11967            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11968        });
11969
11970        // Opening the dock, when it's zoomed, retains focus
11971        workspace.update_in(cx, |workspace, window, cx| {
11972            workspace.toggle_dock(DockPosition::Right, window, cx)
11973        });
11974
11975        workspace.update_in(cx, |workspace, window, cx| {
11976            assert!(workspace.right_dock().read(cx).is_open());
11977            assert!(panel.is_zoomed(window, cx));
11978            assert!(workspace.zoomed.is_some());
11979            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
11980        });
11981
11982        // Unzoom and close the panel, zoom the active pane.
11983        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
11984        workspace.update_in(cx, |workspace, window, cx| {
11985            workspace.toggle_dock(DockPosition::Right, window, cx)
11986        });
11987        pane.update_in(cx, |pane, window, cx| {
11988            pane.toggle_zoom(&Default::default(), window, cx)
11989        });
11990
11991        // Opening a dock unzooms the pane.
11992        workspace.update_in(cx, |workspace, window, cx| {
11993            workspace.toggle_dock(DockPosition::Right, window, cx)
11994        });
11995        workspace.update_in(cx, |workspace, window, cx| {
11996            let pane = pane.read(cx);
11997            assert!(!pane.is_zoomed());
11998            assert!(!pane.focus_handle(cx).is_focused(window));
11999            assert!(workspace.right_dock().read(cx).is_open());
12000            assert!(workspace.zoomed.is_none());
12001        });
12002    }
12003
12004    #[gpui::test]
12005    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
12006        init_test(cx);
12007        let fs = FakeFs::new(cx.executor());
12008
12009        let project = Project::test(fs, [], cx).await;
12010        let (workspace, cx) =
12011            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12012
12013        let panel = workspace.update_in(cx, |workspace, window, cx| {
12014            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12015            workspace.add_panel(panel.clone(), window, cx);
12016            panel
12017        });
12018
12019        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12020        pane.update_in(cx, |pane, window, cx| {
12021            let item = cx.new(TestItem::new);
12022            pane.add_item(Box::new(item), true, true, None, window, cx);
12023        });
12024
12025        // Enable close_panel_on_toggle
12026        cx.update_global(|store: &mut SettingsStore, cx| {
12027            store.update_user_settings(cx, |settings| {
12028                settings.workspace.close_panel_on_toggle = Some(true);
12029            });
12030        });
12031
12032        // Panel starts closed. Toggling should open and focus it.
12033        workspace.update_in(cx, |workspace, window, cx| {
12034            assert!(!workspace.right_dock().read(cx).is_open());
12035            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12036        });
12037
12038        workspace.update_in(cx, |workspace, window, cx| {
12039            assert!(
12040                workspace.right_dock().read(cx).is_open(),
12041                "Dock should be open after toggling from center"
12042            );
12043            assert!(
12044                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12045                "Panel should be focused after toggling from center"
12046            );
12047        });
12048
12049        // Panel is open and focused. Toggling should close the panel and
12050        // return focus to the center.
12051        workspace.update_in(cx, |workspace, window, cx| {
12052            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12053        });
12054
12055        workspace.update_in(cx, |workspace, window, cx| {
12056            assert!(
12057                !workspace.right_dock().read(cx).is_open(),
12058                "Dock should be closed after toggling from focused panel"
12059            );
12060            assert!(
12061                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12062                "Panel should not be focused after toggling from focused panel"
12063            );
12064        });
12065
12066        // Open the dock and focus something else so the panel is open but not
12067        // focused. Toggling should focus the panel (not close it).
12068        workspace.update_in(cx, |workspace, window, cx| {
12069            workspace
12070                .right_dock()
12071                .update(cx, |dock, cx| dock.set_open(true, window, cx));
12072            window.focus(&pane.read(cx).focus_handle(cx), cx);
12073        });
12074
12075        workspace.update_in(cx, |workspace, window, cx| {
12076            assert!(workspace.right_dock().read(cx).is_open());
12077            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12078            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12079        });
12080
12081        workspace.update_in(cx, |workspace, window, cx| {
12082            assert!(
12083                workspace.right_dock().read(cx).is_open(),
12084                "Dock should remain open when toggling focuses an open-but-unfocused panel"
12085            );
12086            assert!(
12087                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12088                "Panel should be focused after toggling an open-but-unfocused panel"
12089            );
12090        });
12091
12092        // Now disable the setting and verify the original behavior: toggling
12093        // from a focused panel moves focus to center but leaves the dock open.
12094        cx.update_global(|store: &mut SettingsStore, cx| {
12095            store.update_user_settings(cx, |settings| {
12096                settings.workspace.close_panel_on_toggle = Some(false);
12097            });
12098        });
12099
12100        workspace.update_in(cx, |workspace, window, cx| {
12101            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12102        });
12103
12104        workspace.update_in(cx, |workspace, window, cx| {
12105            assert!(
12106                workspace.right_dock().read(cx).is_open(),
12107                "Dock should remain open when setting is disabled"
12108            );
12109            assert!(
12110                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12111                "Panel should not be focused after toggling with setting disabled"
12112            );
12113        });
12114    }
12115
12116    #[gpui::test]
12117    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
12118        init_test(cx);
12119        let fs = FakeFs::new(cx.executor());
12120
12121        let project = Project::test(fs, [], cx).await;
12122        let (workspace, cx) =
12123            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12124
12125        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
12126            workspace.active_pane().clone()
12127        });
12128
12129        // Add an item to the pane so it can be zoomed
12130        workspace.update_in(cx, |workspace, window, cx| {
12131            let item = cx.new(TestItem::new);
12132            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
12133        });
12134
12135        // Initially not zoomed
12136        workspace.update_in(cx, |workspace, _window, cx| {
12137            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
12138            assert!(
12139                workspace.zoomed.is_none(),
12140                "Workspace should track no zoomed pane"
12141            );
12142            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
12143        });
12144
12145        // Zoom In
12146        pane.update_in(cx, |pane, window, cx| {
12147            pane.zoom_in(&crate::ZoomIn, window, cx);
12148        });
12149
12150        workspace.update_in(cx, |workspace, window, cx| {
12151            assert!(
12152                pane.read(cx).is_zoomed(),
12153                "Pane should be zoomed after ZoomIn"
12154            );
12155            assert!(
12156                workspace.zoomed.is_some(),
12157                "Workspace should track the zoomed pane"
12158            );
12159            assert!(
12160                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
12161                "ZoomIn should focus the pane"
12162            );
12163        });
12164
12165        // Zoom In again is a no-op
12166        pane.update_in(cx, |pane, window, cx| {
12167            pane.zoom_in(&crate::ZoomIn, window, cx);
12168        });
12169
12170        workspace.update_in(cx, |workspace, window, cx| {
12171            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
12172            assert!(
12173                workspace.zoomed.is_some(),
12174                "Workspace still tracks zoomed pane"
12175            );
12176            assert!(
12177                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
12178                "Pane remains focused after repeated ZoomIn"
12179            );
12180        });
12181
12182        // Zoom Out
12183        pane.update_in(cx, |pane, window, cx| {
12184            pane.zoom_out(&crate::ZoomOut, window, cx);
12185        });
12186
12187        workspace.update_in(cx, |workspace, _window, cx| {
12188            assert!(
12189                !pane.read(cx).is_zoomed(),
12190                "Pane should unzoom after ZoomOut"
12191            );
12192            assert!(
12193                workspace.zoomed.is_none(),
12194                "Workspace clears zoom tracking after ZoomOut"
12195            );
12196        });
12197
12198        // Zoom Out again is a no-op
12199        pane.update_in(cx, |pane, window, cx| {
12200            pane.zoom_out(&crate::ZoomOut, window, cx);
12201        });
12202
12203        workspace.update_in(cx, |workspace, _window, cx| {
12204            assert!(
12205                !pane.read(cx).is_zoomed(),
12206                "Second ZoomOut keeps pane unzoomed"
12207            );
12208            assert!(
12209                workspace.zoomed.is_none(),
12210                "Workspace remains without zoomed pane"
12211            );
12212        });
12213    }
12214
12215    #[gpui::test]
12216    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
12217        init_test(cx);
12218        let fs = FakeFs::new(cx.executor());
12219
12220        let project = Project::test(fs, [], cx).await;
12221        let (workspace, cx) =
12222            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12223        workspace.update_in(cx, |workspace, window, cx| {
12224            // Open two docks
12225            let left_dock = workspace.dock_at_position(DockPosition::Left);
12226            let right_dock = workspace.dock_at_position(DockPosition::Right);
12227
12228            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12229            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12230
12231            assert!(left_dock.read(cx).is_open());
12232            assert!(right_dock.read(cx).is_open());
12233        });
12234
12235        workspace.update_in(cx, |workspace, window, cx| {
12236            // Toggle all docks - should close both
12237            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12238
12239            let left_dock = workspace.dock_at_position(DockPosition::Left);
12240            let right_dock = workspace.dock_at_position(DockPosition::Right);
12241            assert!(!left_dock.read(cx).is_open());
12242            assert!(!right_dock.read(cx).is_open());
12243        });
12244
12245        workspace.update_in(cx, |workspace, window, cx| {
12246            // Toggle again - should reopen both
12247            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12248
12249            let left_dock = workspace.dock_at_position(DockPosition::Left);
12250            let right_dock = workspace.dock_at_position(DockPosition::Right);
12251            assert!(left_dock.read(cx).is_open());
12252            assert!(right_dock.read(cx).is_open());
12253        });
12254    }
12255
12256    #[gpui::test]
12257    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
12258        init_test(cx);
12259        let fs = FakeFs::new(cx.executor());
12260
12261        let project = Project::test(fs, [], cx).await;
12262        let (workspace, cx) =
12263            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12264        workspace.update_in(cx, |workspace, window, cx| {
12265            // Open two docks
12266            let left_dock = workspace.dock_at_position(DockPosition::Left);
12267            let right_dock = workspace.dock_at_position(DockPosition::Right);
12268
12269            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12270            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
12271
12272            assert!(left_dock.read(cx).is_open());
12273            assert!(right_dock.read(cx).is_open());
12274        });
12275
12276        workspace.update_in(cx, |workspace, window, cx| {
12277            // Close them manually
12278            workspace.toggle_dock(DockPosition::Left, window, cx);
12279            workspace.toggle_dock(DockPosition::Right, window, cx);
12280
12281            let left_dock = workspace.dock_at_position(DockPosition::Left);
12282            let right_dock = workspace.dock_at_position(DockPosition::Right);
12283            assert!(!left_dock.read(cx).is_open());
12284            assert!(!right_dock.read(cx).is_open());
12285        });
12286
12287        workspace.update_in(cx, |workspace, window, cx| {
12288            // Toggle all docks - only last closed (right dock) should reopen
12289            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12290
12291            let left_dock = workspace.dock_at_position(DockPosition::Left);
12292            let right_dock = workspace.dock_at_position(DockPosition::Right);
12293            assert!(!left_dock.read(cx).is_open());
12294            assert!(right_dock.read(cx).is_open());
12295        });
12296    }
12297
12298    #[gpui::test]
12299    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
12300        init_test(cx);
12301        let fs = FakeFs::new(cx.executor());
12302        let project = Project::test(fs, [], cx).await;
12303        let (multi_workspace, cx) =
12304            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12305        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12306
12307        // Open two docks (left and right) with one panel each
12308        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
12309            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12310            workspace.add_panel(left_panel.clone(), window, cx);
12311
12312            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
12313            workspace.add_panel(right_panel.clone(), window, cx);
12314
12315            workspace.toggle_dock(DockPosition::Left, window, cx);
12316            workspace.toggle_dock(DockPosition::Right, window, cx);
12317
12318            // Verify initial state
12319            assert!(
12320                workspace.left_dock().read(cx).is_open(),
12321                "Left dock should be open"
12322            );
12323            assert_eq!(
12324                workspace
12325                    .left_dock()
12326                    .read(cx)
12327                    .visible_panel()
12328                    .unwrap()
12329                    .panel_id(),
12330                left_panel.panel_id(),
12331                "Left panel should be visible in left dock"
12332            );
12333            assert!(
12334                workspace.right_dock().read(cx).is_open(),
12335                "Right dock should be open"
12336            );
12337            assert_eq!(
12338                workspace
12339                    .right_dock()
12340                    .read(cx)
12341                    .visible_panel()
12342                    .unwrap()
12343                    .panel_id(),
12344                right_panel.panel_id(),
12345                "Right panel should be visible in right dock"
12346            );
12347            assert!(
12348                !workspace.bottom_dock().read(cx).is_open(),
12349                "Bottom dock should be closed"
12350            );
12351
12352            (left_panel, right_panel)
12353        });
12354
12355        // Focus the left panel and move it to the next position (bottom dock)
12356        workspace.update_in(cx, |workspace, window, cx| {
12357            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
12358            assert!(
12359                left_panel.read(cx).focus_handle(cx).is_focused(window),
12360                "Left panel should be focused"
12361            );
12362        });
12363
12364        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12365
12366        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
12367        workspace.update(cx, |workspace, cx| {
12368            assert!(
12369                !workspace.left_dock().read(cx).is_open(),
12370                "Left dock should be closed"
12371            );
12372            assert!(
12373                workspace.bottom_dock().read(cx).is_open(),
12374                "Bottom dock should now be open"
12375            );
12376            assert_eq!(
12377                left_panel.read(cx).position,
12378                DockPosition::Bottom,
12379                "Left panel should now be in the bottom dock"
12380            );
12381            assert_eq!(
12382                workspace
12383                    .bottom_dock()
12384                    .read(cx)
12385                    .visible_panel()
12386                    .unwrap()
12387                    .panel_id(),
12388                left_panel.panel_id(),
12389                "Left panel should be the visible panel in the bottom dock"
12390            );
12391        });
12392
12393        // Toggle all docks off
12394        workspace.update_in(cx, |workspace, window, cx| {
12395            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12396            assert!(
12397                !workspace.left_dock().read(cx).is_open(),
12398                "Left dock should be closed"
12399            );
12400            assert!(
12401                !workspace.right_dock().read(cx).is_open(),
12402                "Right dock should be closed"
12403            );
12404            assert!(
12405                !workspace.bottom_dock().read(cx).is_open(),
12406                "Bottom dock should be closed"
12407            );
12408        });
12409
12410        // Toggle all docks back on and verify positions are restored
12411        workspace.update_in(cx, |workspace, window, cx| {
12412            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
12413            assert!(
12414                !workspace.left_dock().read(cx).is_open(),
12415                "Left dock should remain closed"
12416            );
12417            assert!(
12418                workspace.right_dock().read(cx).is_open(),
12419                "Right dock should remain open"
12420            );
12421            assert!(
12422                workspace.bottom_dock().read(cx).is_open(),
12423                "Bottom dock should remain open"
12424            );
12425            assert_eq!(
12426                left_panel.read(cx).position,
12427                DockPosition::Bottom,
12428                "Left panel should remain in the bottom dock"
12429            );
12430            assert_eq!(
12431                right_panel.read(cx).position,
12432                DockPosition::Right,
12433                "Right panel should remain in the right dock"
12434            );
12435            assert_eq!(
12436                workspace
12437                    .bottom_dock()
12438                    .read(cx)
12439                    .visible_panel()
12440                    .unwrap()
12441                    .panel_id(),
12442                left_panel.panel_id(),
12443                "Left panel should be the visible panel in the right dock"
12444            );
12445        });
12446    }
12447
12448    #[gpui::test]
12449    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
12450        init_test(cx);
12451
12452        let fs = FakeFs::new(cx.executor());
12453
12454        let project = Project::test(fs, None, cx).await;
12455        let (workspace, cx) =
12456            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12457
12458        // Let's arrange the panes like this:
12459        //
12460        // +-----------------------+
12461        // |         top           |
12462        // +------+--------+-------+
12463        // | left | center | right |
12464        // +------+--------+-------+
12465        // |        bottom         |
12466        // +-----------------------+
12467
12468        let top_item = cx.new(|cx| {
12469            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
12470        });
12471        let bottom_item = cx.new(|cx| {
12472            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
12473        });
12474        let left_item = cx.new(|cx| {
12475            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
12476        });
12477        let right_item = cx.new(|cx| {
12478            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
12479        });
12480        let center_item = cx.new(|cx| {
12481            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
12482        });
12483
12484        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12485            let top_pane_id = workspace.active_pane().entity_id();
12486            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
12487            workspace.split_pane(
12488                workspace.active_pane().clone(),
12489                SplitDirection::Down,
12490                window,
12491                cx,
12492            );
12493            top_pane_id
12494        });
12495        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12496            let bottom_pane_id = workspace.active_pane().entity_id();
12497            workspace.add_item_to_active_pane(
12498                Box::new(bottom_item.clone()),
12499                None,
12500                false,
12501                window,
12502                cx,
12503            );
12504            workspace.split_pane(
12505                workspace.active_pane().clone(),
12506                SplitDirection::Up,
12507                window,
12508                cx,
12509            );
12510            bottom_pane_id
12511        });
12512        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12513            let left_pane_id = workspace.active_pane().entity_id();
12514            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
12515            workspace.split_pane(
12516                workspace.active_pane().clone(),
12517                SplitDirection::Right,
12518                window,
12519                cx,
12520            );
12521            left_pane_id
12522        });
12523        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12524            let right_pane_id = workspace.active_pane().entity_id();
12525            workspace.add_item_to_active_pane(
12526                Box::new(right_item.clone()),
12527                None,
12528                false,
12529                window,
12530                cx,
12531            );
12532            workspace.split_pane(
12533                workspace.active_pane().clone(),
12534                SplitDirection::Left,
12535                window,
12536                cx,
12537            );
12538            right_pane_id
12539        });
12540        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
12541            let center_pane_id = workspace.active_pane().entity_id();
12542            workspace.add_item_to_active_pane(
12543                Box::new(center_item.clone()),
12544                None,
12545                false,
12546                window,
12547                cx,
12548            );
12549            center_pane_id
12550        });
12551        cx.executor().run_until_parked();
12552
12553        workspace.update_in(cx, |workspace, window, cx| {
12554            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
12555
12556            // Join into next from center pane into right
12557            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12558        });
12559
12560        workspace.update_in(cx, |workspace, window, cx| {
12561            let active_pane = workspace.active_pane();
12562            assert_eq!(right_pane_id, active_pane.entity_id());
12563            assert_eq!(2, active_pane.read(cx).items_len());
12564            let item_ids_in_pane =
12565                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12566            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12567            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12568
12569            // Join into next from right pane into bottom
12570            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12571        });
12572
12573        workspace.update_in(cx, |workspace, window, cx| {
12574            let active_pane = workspace.active_pane();
12575            assert_eq!(bottom_pane_id, active_pane.entity_id());
12576            assert_eq!(3, active_pane.read(cx).items_len());
12577            let item_ids_in_pane =
12578                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12579            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12580            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12581            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12582
12583            // Join into next from bottom pane into left
12584            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12585        });
12586
12587        workspace.update_in(cx, |workspace, window, cx| {
12588            let active_pane = workspace.active_pane();
12589            assert_eq!(left_pane_id, active_pane.entity_id());
12590            assert_eq!(4, active_pane.read(cx).items_len());
12591            let item_ids_in_pane =
12592                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12593            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12594            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12595            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12596            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12597
12598            // Join into next from left pane into top
12599            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
12600        });
12601
12602        workspace.update_in(cx, |workspace, window, cx| {
12603            let active_pane = workspace.active_pane();
12604            assert_eq!(top_pane_id, active_pane.entity_id());
12605            assert_eq!(5, active_pane.read(cx).items_len());
12606            let item_ids_in_pane =
12607                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
12608            assert!(item_ids_in_pane.contains(&center_item.item_id()));
12609            assert!(item_ids_in_pane.contains(&right_item.item_id()));
12610            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
12611            assert!(item_ids_in_pane.contains(&left_item.item_id()));
12612            assert!(item_ids_in_pane.contains(&top_item.item_id()));
12613
12614            // Single pane left: no-op
12615            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
12616        });
12617
12618        workspace.update(cx, |workspace, _cx| {
12619            let active_pane = workspace.active_pane();
12620            assert_eq!(top_pane_id, active_pane.entity_id());
12621        });
12622    }
12623
12624    fn add_an_item_to_active_pane(
12625        cx: &mut VisualTestContext,
12626        workspace: &Entity<Workspace>,
12627        item_id: u64,
12628    ) -> Entity<TestItem> {
12629        let item = cx.new(|cx| {
12630            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
12631                item_id,
12632                "item{item_id}.txt",
12633                cx,
12634            )])
12635        });
12636        workspace.update_in(cx, |workspace, window, cx| {
12637            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
12638        });
12639        item
12640    }
12641
12642    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
12643        workspace.update_in(cx, |workspace, window, cx| {
12644            workspace.split_pane(
12645                workspace.active_pane().clone(),
12646                SplitDirection::Right,
12647                window,
12648                cx,
12649            )
12650        })
12651    }
12652
12653    #[gpui::test]
12654    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
12655        init_test(cx);
12656        let fs = FakeFs::new(cx.executor());
12657        let project = Project::test(fs, None, cx).await;
12658        let (workspace, cx) =
12659            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12660
12661        add_an_item_to_active_pane(cx, &workspace, 1);
12662        split_pane(cx, &workspace);
12663        add_an_item_to_active_pane(cx, &workspace, 2);
12664        split_pane(cx, &workspace); // empty pane
12665        split_pane(cx, &workspace);
12666        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
12667
12668        cx.executor().run_until_parked();
12669
12670        workspace.update(cx, |workspace, cx| {
12671            let num_panes = workspace.panes().len();
12672            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12673            let active_item = workspace
12674                .active_pane()
12675                .read(cx)
12676                .active_item()
12677                .expect("item is in focus");
12678
12679            assert_eq!(num_panes, 4);
12680            assert_eq!(num_items_in_current_pane, 1);
12681            assert_eq!(active_item.item_id(), last_item.item_id());
12682        });
12683
12684        workspace.update_in(cx, |workspace, window, cx| {
12685            workspace.join_all_panes(window, cx);
12686        });
12687
12688        workspace.update(cx, |workspace, cx| {
12689            let num_panes = workspace.panes().len();
12690            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
12691            let active_item = workspace
12692                .active_pane()
12693                .read(cx)
12694                .active_item()
12695                .expect("item is in focus");
12696
12697            assert_eq!(num_panes, 1);
12698            assert_eq!(num_items_in_current_pane, 3);
12699            assert_eq!(active_item.item_id(), last_item.item_id());
12700        });
12701    }
12702
12703    #[gpui::test]
12704    async fn test_flexible_dock_sizing(cx: &mut gpui::TestAppContext) {
12705        init_test(cx);
12706        let fs = FakeFs::new(cx.executor());
12707
12708        let project = Project::test(fs, [], cx).await;
12709        let (multi_workspace, cx) =
12710            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12711        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12712
12713        workspace.update(cx, |workspace, _cx| {
12714            workspace.bounds.size.width = px(800.);
12715        });
12716
12717        workspace.update_in(cx, |workspace, window, cx| {
12718            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12719            workspace.add_panel(panel, window, cx);
12720            workspace.toggle_dock(DockPosition::Right, window, cx);
12721        });
12722
12723        let (panel, resized_width, ratio_basis_width) =
12724            workspace.update_in(cx, |workspace, window, cx| {
12725                let item = cx.new(|cx| {
12726                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12727                });
12728                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12729
12730                let dock = workspace.right_dock().read(cx);
12731                let workspace_width = workspace.bounds.size.width;
12732                let initial_width = workspace
12733                    .dock_size(&dock, window, cx)
12734                    .expect("flexible dock should have an initial width");
12735
12736                assert_eq!(initial_width, workspace_width / 2.);
12737
12738                workspace.resize_right_dock(px(300.), window, cx);
12739
12740                let dock = workspace.right_dock().read(cx);
12741                let resized_width = workspace
12742                    .dock_size(&dock, window, cx)
12743                    .expect("flexible dock should keep its resized width");
12744
12745                assert_eq!(resized_width, px(300.));
12746
12747                let panel = workspace
12748                    .right_dock()
12749                    .read(cx)
12750                    .visible_panel()
12751                    .expect("flexible dock should have a visible panel")
12752                    .panel_id();
12753
12754                (panel, resized_width, workspace_width)
12755            });
12756
12757        workspace.update_in(cx, |workspace, window, cx| {
12758            workspace.toggle_dock(DockPosition::Right, window, cx);
12759            workspace.toggle_dock(DockPosition::Right, window, cx);
12760
12761            let dock = workspace.right_dock().read(cx);
12762            let reopened_width = workspace
12763                .dock_size(&dock, window, cx)
12764                .expect("flexible dock should restore when reopened");
12765
12766            assert_eq!(reopened_width, resized_width);
12767
12768            let right_dock = workspace.right_dock().read(cx);
12769            let flexible_panel = right_dock
12770                .visible_panel()
12771                .expect("flexible dock should still have a visible panel");
12772            assert_eq!(flexible_panel.panel_id(), panel);
12773            assert_eq!(
12774                right_dock
12775                    .stored_panel_size_state(flexible_panel.as_ref())
12776                    .and_then(|size_state| size_state.flex),
12777                Some(
12778                    resized_width.to_f64() as f32
12779                        / (workspace.bounds.size.width - resized_width).to_f64() as f32
12780                )
12781            );
12782        });
12783
12784        workspace.update_in(cx, |workspace, window, cx| {
12785            workspace.split_pane(
12786                workspace.active_pane().clone(),
12787                SplitDirection::Right,
12788                window,
12789                cx,
12790            );
12791
12792            let dock = workspace.right_dock().read(cx);
12793            let split_width = workspace
12794                .dock_size(&dock, window, cx)
12795                .expect("flexible dock should keep its user-resized proportion");
12796
12797            assert_eq!(split_width, px(300.));
12798
12799            workspace.bounds.size.width = px(1600.);
12800
12801            let dock = workspace.right_dock().read(cx);
12802            let resized_window_width = workspace
12803                .dock_size(&dock, window, cx)
12804                .expect("flexible dock should preserve proportional size on window resize");
12805
12806            assert_eq!(
12807                resized_window_width,
12808                workspace.bounds.size.width
12809                    * (resized_width.to_f64() as f32 / ratio_basis_width.to_f64() as f32)
12810            );
12811        });
12812    }
12813
12814    #[gpui::test]
12815    async fn test_panel_size_state_persistence(cx: &mut gpui::TestAppContext) {
12816        init_test(cx);
12817        let fs = FakeFs::new(cx.executor());
12818
12819        // Fixed-width panel: pixel size is persisted to KVP and restored on re-add.
12820        {
12821            let project = Project::test(fs.clone(), [], cx).await;
12822            let (multi_workspace, cx) =
12823                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12824            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12825
12826            workspace.update(cx, |workspace, _cx| {
12827                workspace.set_random_database_id();
12828                workspace.bounds.size.width = px(800.);
12829            });
12830
12831            let panel = workspace.update_in(cx, |workspace, window, cx| {
12832                let panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12833                workspace.add_panel(panel.clone(), window, cx);
12834                workspace.toggle_dock(DockPosition::Left, window, cx);
12835                panel
12836            });
12837
12838            workspace.update_in(cx, |workspace, window, cx| {
12839                workspace.resize_left_dock(px(350.), window, cx);
12840            });
12841
12842            cx.run_until_parked();
12843
12844            let persisted = workspace.read_with(cx, |workspace, cx| {
12845                workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12846            });
12847            assert_eq!(
12848                persisted.and_then(|s| s.size),
12849                Some(px(350.)),
12850                "fixed-width panel size should be persisted to KVP"
12851            );
12852
12853            // Remove the panel and re-add a fresh instance with the same key.
12854            // The new instance should have its size state restored from KVP.
12855            workspace.update_in(cx, |workspace, window, cx| {
12856                workspace.remove_panel(&panel, window, cx);
12857            });
12858
12859            workspace.update_in(cx, |workspace, window, cx| {
12860                let new_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
12861                workspace.add_panel(new_panel, window, cx);
12862
12863                let left_dock = workspace.left_dock().read(cx);
12864                let size_state = left_dock
12865                    .panel::<TestPanel>()
12866                    .and_then(|p| left_dock.stored_panel_size_state(&p));
12867                assert_eq!(
12868                    size_state.and_then(|s| s.size),
12869                    Some(px(350.)),
12870                    "re-added fixed-width panel should restore persisted size from KVP"
12871                );
12872            });
12873        }
12874
12875        // Flexible panel: both pixel size and ratio are persisted and restored.
12876        {
12877            let project = Project::test(fs.clone(), [], cx).await;
12878            let (multi_workspace, cx) =
12879                cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12880            let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12881
12882            workspace.update(cx, |workspace, _cx| {
12883                workspace.set_random_database_id();
12884                workspace.bounds.size.width = px(800.);
12885            });
12886
12887            let panel = workspace.update_in(cx, |workspace, window, cx| {
12888                let item = cx.new(|cx| {
12889                    TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12890                });
12891                workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12892
12893                let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12894                workspace.add_panel(panel.clone(), window, cx);
12895                workspace.toggle_dock(DockPosition::Right, window, cx);
12896                panel
12897            });
12898
12899            workspace.update_in(cx, |workspace, window, cx| {
12900                workspace.resize_right_dock(px(300.), window, cx);
12901            });
12902
12903            cx.run_until_parked();
12904
12905            let persisted = workspace
12906                .read_with(cx, |workspace, cx| {
12907                    workspace.persisted_panel_size_state(TestPanel::panel_key(), cx)
12908                })
12909                .expect("flexible panel state should be persisted to KVP");
12910            assert_eq!(
12911                persisted.size, None,
12912                "flexible panel should not persist a redundant pixel size"
12913            );
12914            let original_ratio = persisted.flex.expect("panel's flex should be persisted");
12915
12916            // Remove the panel and re-add: both size and ratio should be restored.
12917            workspace.update_in(cx, |workspace, window, cx| {
12918                workspace.remove_panel(&panel, window, cx);
12919            });
12920
12921            workspace.update_in(cx, |workspace, window, cx| {
12922                let new_panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Right, 100, cx));
12923                workspace.add_panel(new_panel, window, cx);
12924
12925                let right_dock = workspace.right_dock().read(cx);
12926                let size_state = right_dock
12927                    .panel::<TestPanel>()
12928                    .and_then(|p| right_dock.stored_panel_size_state(&p))
12929                    .expect("re-added flexible panel should have restored size state from KVP");
12930                assert_eq!(
12931                    size_state.size, None,
12932                    "re-added flexible panel should not have a persisted pixel size"
12933                );
12934                assert_eq!(
12935                    size_state.flex,
12936                    Some(original_ratio),
12937                    "re-added flexible panel should restore persisted flex"
12938                );
12939            });
12940        }
12941    }
12942
12943    #[gpui::test]
12944    async fn test_flexible_panel_left_dock_sizing(cx: &mut gpui::TestAppContext) {
12945        init_test(cx);
12946        let fs = FakeFs::new(cx.executor());
12947
12948        let project = Project::test(fs, [], cx).await;
12949        let (multi_workspace, cx) =
12950            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
12951        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
12952
12953        workspace.update(cx, |workspace, _cx| {
12954            workspace.bounds.size.width = px(900.);
12955        });
12956
12957        // Step 1: Add a tab to the center pane then open a flexible panel in the left
12958        // dock. With one full-width center pane the default ratio is 0.5, so the panel
12959        // and the center pane each take half the workspace width.
12960        workspace.update_in(cx, |workspace, window, cx| {
12961            let item = cx.new(|cx| {
12962                TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
12963            });
12964            workspace.add_item_to_active_pane(Box::new(item), None, true, window, cx);
12965
12966            let panel = cx.new(|cx| TestPanel::new_flexible(DockPosition::Left, 100, cx));
12967            workspace.add_panel(panel, window, cx);
12968            workspace.toggle_dock(DockPosition::Left, window, cx);
12969
12970            let left_dock = workspace.left_dock().read(cx);
12971            let left_width = workspace
12972                .dock_size(&left_dock, window, cx)
12973                .expect("left dock should have an active panel");
12974
12975            assert_eq!(
12976                left_width,
12977                workspace.bounds.size.width / 2.,
12978                "flexible left panel should split evenly with the center pane"
12979            );
12980        });
12981
12982        // Step 2: Split the center pane vertically (top/bottom). Vertical splits do not
12983        // change horizontal width fractions, so the flexible panel stays at the same
12984        // width as each half of the split.
12985        workspace.update_in(cx, |workspace, window, cx| {
12986            workspace.split_pane(
12987                workspace.active_pane().clone(),
12988                SplitDirection::Down,
12989                window,
12990                cx,
12991            );
12992
12993            let left_dock = workspace.left_dock().read(cx);
12994            let left_width = workspace
12995                .dock_size(&left_dock, window, cx)
12996                .expect("left dock should still have an active panel after vertical split");
12997
12998            assert_eq!(
12999                left_width,
13000                workspace.bounds.size.width / 2.,
13001                "flexible left panel width should match each vertically-split pane"
13002            );
13003        });
13004
13005        // Step 3: Open a fixed-width panel in the right dock. The right dock's default
13006        // size reduces the available width, so the flexible left panel and the center
13007        // panes all shrink proportionally to accommodate it.
13008        workspace.update_in(cx, |workspace, window, cx| {
13009            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 200, cx));
13010            workspace.add_panel(panel, window, cx);
13011            workspace.toggle_dock(DockPosition::Right, window, cx);
13012
13013            let right_dock = workspace.right_dock().read(cx);
13014            let right_width = workspace
13015                .dock_size(&right_dock, window, cx)
13016                .expect("right dock should have an active panel");
13017
13018            let left_dock = workspace.left_dock().read(cx);
13019            let left_width = workspace
13020                .dock_size(&left_dock, window, cx)
13021                .expect("left dock should still have an active panel");
13022
13023            let available_width = workspace.bounds.size.width - right_width;
13024            assert_eq!(
13025                left_width,
13026                available_width / 2.,
13027                "flexible left panel should shrink proportionally as the right dock takes space"
13028            );
13029        });
13030
13031        // Step 4: Toggle the right dock's panel to flexible. Now both docks use
13032        // flex sizing and the workspace width is divided among left-flex, center
13033        // (implicit flex 1.0), and right-flex.
13034        workspace.update_in(cx, |workspace, window, cx| {
13035            let right_dock = workspace.right_dock().clone();
13036            let right_panel = right_dock
13037                .read(cx)
13038                .visible_panel()
13039                .expect("right dock should have a visible panel")
13040                .clone();
13041            workspace.toggle_dock_panel_flexible_size(
13042                &right_dock,
13043                right_panel.as_ref(),
13044                window,
13045                cx,
13046            );
13047
13048            let right_dock = right_dock.read(cx);
13049            let right_panel = right_dock
13050                .visible_panel()
13051                .expect("right dock should still have a visible panel");
13052            assert!(
13053                right_panel.has_flexible_size(window, cx),
13054                "right panel should now be flexible"
13055            );
13056
13057            let right_size_state = right_dock
13058                .stored_panel_size_state(right_panel.as_ref())
13059                .expect("right panel should have a stored size state after toggling");
13060            let right_flex = right_size_state
13061                .flex
13062                .expect("right panel should have a flex value after toggling");
13063
13064            let left_dock = workspace.left_dock().read(cx);
13065            let left_width = workspace
13066                .dock_size(&left_dock, window, cx)
13067                .expect("left dock should still have an active panel");
13068            let right_width = workspace
13069                .dock_size(&right_dock, window, cx)
13070                .expect("right dock should still have an active panel");
13071
13072            let left_flex = workspace
13073                .default_dock_flex(DockPosition::Left)
13074                .expect("left dock should have a default flex");
13075
13076            let total_flex = left_flex + 1.0 + right_flex;
13077            let expected_left = left_flex / total_flex * workspace.bounds.size.width;
13078            let expected_right = right_flex / total_flex * workspace.bounds.size.width;
13079            assert_eq!(
13080                left_width, expected_left,
13081                "flexible left panel should share workspace width via flex ratios"
13082            );
13083            assert_eq!(
13084                right_width, expected_right,
13085                "flexible right panel should share workspace width via flex ratios"
13086            );
13087        });
13088    }
13089
13090    struct TestModal(FocusHandle);
13091
13092    impl TestModal {
13093        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
13094            Self(cx.focus_handle())
13095        }
13096    }
13097
13098    impl EventEmitter<DismissEvent> for TestModal {}
13099
13100    impl Focusable for TestModal {
13101        fn focus_handle(&self, _cx: &App) -> FocusHandle {
13102            self.0.clone()
13103        }
13104    }
13105
13106    impl ModalView for TestModal {}
13107
13108    impl Render for TestModal {
13109        fn render(
13110            &mut self,
13111            _window: &mut Window,
13112            _cx: &mut Context<TestModal>,
13113        ) -> impl IntoElement {
13114            div().track_focus(&self.0)
13115        }
13116    }
13117
13118    #[gpui::test]
13119    async fn test_panels(cx: &mut gpui::TestAppContext) {
13120        init_test(cx);
13121        let fs = FakeFs::new(cx.executor());
13122
13123        let project = Project::test(fs, [], cx).await;
13124        let (multi_workspace, cx) =
13125            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
13126        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
13127
13128        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
13129            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
13130            workspace.add_panel(panel_1.clone(), window, cx);
13131            workspace.toggle_dock(DockPosition::Left, window, cx);
13132            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
13133            workspace.add_panel(panel_2.clone(), window, cx);
13134            workspace.toggle_dock(DockPosition::Right, window, cx);
13135
13136            let left_dock = workspace.left_dock();
13137            assert_eq!(
13138                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13139                panel_1.panel_id()
13140            );
13141            assert_eq!(
13142                workspace.dock_size(&left_dock.read(cx), window, cx),
13143                Some(px(300.))
13144            );
13145
13146            workspace.resize_left_dock(px(1337.), window, cx);
13147            assert_eq!(
13148                workspace
13149                    .right_dock()
13150                    .read(cx)
13151                    .visible_panel()
13152                    .unwrap()
13153                    .panel_id(),
13154                panel_2.panel_id(),
13155            );
13156
13157            (panel_1, panel_2)
13158        });
13159
13160        // Move panel_1 to the right
13161        panel_1.update_in(cx, |panel_1, window, cx| {
13162            panel_1.set_position(DockPosition::Right, window, cx)
13163        });
13164
13165        workspace.update_in(cx, |workspace, window, cx| {
13166            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
13167            // Since it was the only panel on the left, the left dock should now be closed.
13168            assert!(!workspace.left_dock().read(cx).is_open());
13169            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
13170            let right_dock = workspace.right_dock();
13171            assert_eq!(
13172                right_dock.read(cx).visible_panel().unwrap().panel_id(),
13173                panel_1.panel_id()
13174            );
13175            assert_eq!(
13176                right_dock
13177                    .read(cx)
13178                    .active_panel_size()
13179                    .unwrap()
13180                    .size
13181                    .unwrap(),
13182                px(1337.)
13183            );
13184
13185            // Now we move panel_2 to the left
13186            panel_2.set_position(DockPosition::Left, window, cx);
13187        });
13188
13189        workspace.update(cx, |workspace, cx| {
13190            // Since panel_2 was not visible on the right, we don't open the left dock.
13191            assert!(!workspace.left_dock().read(cx).is_open());
13192            // And the right dock is unaffected in its displaying of panel_1
13193            assert!(workspace.right_dock().read(cx).is_open());
13194            assert_eq!(
13195                workspace
13196                    .right_dock()
13197                    .read(cx)
13198                    .visible_panel()
13199                    .unwrap()
13200                    .panel_id(),
13201                panel_1.panel_id(),
13202            );
13203        });
13204
13205        // Move panel_1 back to the left
13206        panel_1.update_in(cx, |panel_1, window, cx| {
13207            panel_1.set_position(DockPosition::Left, window, cx)
13208        });
13209
13210        workspace.update_in(cx, |workspace, window, cx| {
13211            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
13212            let left_dock = workspace.left_dock();
13213            assert!(left_dock.read(cx).is_open());
13214            assert_eq!(
13215                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13216                panel_1.panel_id()
13217            );
13218            assert_eq!(
13219                workspace.dock_size(&left_dock.read(cx), window, cx),
13220                Some(px(1337.))
13221            );
13222            // And the right dock should be closed as it no longer has any panels.
13223            assert!(!workspace.right_dock().read(cx).is_open());
13224
13225            // Now we move panel_1 to the bottom
13226            panel_1.set_position(DockPosition::Bottom, window, cx);
13227        });
13228
13229        workspace.update_in(cx, |workspace, window, cx| {
13230            // Since panel_1 was visible on the left, we close the left dock.
13231            assert!(!workspace.left_dock().read(cx).is_open());
13232            // The bottom dock is sized based on the panel's default size,
13233            // since the panel orientation changed from vertical to horizontal.
13234            let bottom_dock = workspace.bottom_dock();
13235            assert_eq!(
13236                workspace.dock_size(&bottom_dock.read(cx), window, cx),
13237                Some(px(300.))
13238            );
13239            // Close bottom dock and move panel_1 back to the left.
13240            bottom_dock.update(cx, |bottom_dock, cx| {
13241                bottom_dock.set_open(false, window, cx)
13242            });
13243            panel_1.set_position(DockPosition::Left, window, cx);
13244        });
13245
13246        // Emit activated event on panel 1
13247        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
13248
13249        // Now the left dock is open and panel_1 is active and focused.
13250        workspace.update_in(cx, |workspace, window, cx| {
13251            let left_dock = workspace.left_dock();
13252            assert!(left_dock.read(cx).is_open());
13253            assert_eq!(
13254                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13255                panel_1.panel_id(),
13256            );
13257            assert!(panel_1.focus_handle(cx).is_focused(window));
13258        });
13259
13260        // Emit closed event on panel 2, which is not active
13261        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13262
13263        // Wo don't close the left dock, because panel_2 wasn't the active panel
13264        workspace.update(cx, |workspace, cx| {
13265            let left_dock = workspace.left_dock();
13266            assert!(left_dock.read(cx).is_open());
13267            assert_eq!(
13268                left_dock.read(cx).visible_panel().unwrap().panel_id(),
13269                panel_1.panel_id(),
13270            );
13271        });
13272
13273        // Emitting a ZoomIn event shows the panel as zoomed.
13274        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
13275        workspace.read_with(cx, |workspace, _| {
13276            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13277            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
13278        });
13279
13280        // Move panel to another dock while it is zoomed
13281        panel_1.update_in(cx, |panel, window, cx| {
13282            panel.set_position(DockPosition::Right, window, cx)
13283        });
13284        workspace.read_with(cx, |workspace, _| {
13285            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13286
13287            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13288        });
13289
13290        // This is a helper for getting a:
13291        // - valid focus on an element,
13292        // - that isn't a part of the panes and panels system of the Workspace,
13293        // - and doesn't trigger the 'on_focus_lost' API.
13294        let focus_other_view = {
13295            let workspace = workspace.clone();
13296            move |cx: &mut VisualTestContext| {
13297                workspace.update_in(cx, |workspace, window, cx| {
13298                    if workspace.active_modal::<TestModal>(cx).is_some() {
13299                        workspace.toggle_modal(window, cx, TestModal::new);
13300                        workspace.toggle_modal(window, cx, TestModal::new);
13301                    } else {
13302                        workspace.toggle_modal(window, cx, TestModal::new);
13303                    }
13304                })
13305            }
13306        };
13307
13308        // If focus is transferred to another view that's not a panel or another pane, we still show
13309        // the panel as zoomed.
13310        focus_other_view(cx);
13311        workspace.read_with(cx, |workspace, _| {
13312            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13313            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13314        });
13315
13316        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
13317        workspace.update_in(cx, |_workspace, window, cx| {
13318            cx.focus_self(window);
13319        });
13320        workspace.read_with(cx, |workspace, _| {
13321            assert_eq!(workspace.zoomed, None);
13322            assert_eq!(workspace.zoomed_position, None);
13323        });
13324
13325        // If focus is transferred again to another view that's not a panel or a pane, we won't
13326        // show the panel as zoomed because it wasn't zoomed before.
13327        focus_other_view(cx);
13328        workspace.read_with(cx, |workspace, _| {
13329            assert_eq!(workspace.zoomed, None);
13330            assert_eq!(workspace.zoomed_position, None);
13331        });
13332
13333        // When the panel is activated, it is zoomed again.
13334        cx.dispatch_action(ToggleRightDock);
13335        workspace.read_with(cx, |workspace, _| {
13336            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
13337            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
13338        });
13339
13340        // Emitting a ZoomOut event unzooms the panel.
13341        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
13342        workspace.read_with(cx, |workspace, _| {
13343            assert_eq!(workspace.zoomed, None);
13344            assert_eq!(workspace.zoomed_position, None);
13345        });
13346
13347        // Emit closed event on panel 1, which is active
13348        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
13349
13350        // Now the left dock is closed, because panel_1 was the active panel
13351        workspace.update(cx, |workspace, cx| {
13352            let right_dock = workspace.right_dock();
13353            assert!(!right_dock.read(cx).is_open());
13354        });
13355    }
13356
13357    #[gpui::test]
13358    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
13359        init_test(cx);
13360
13361        let fs = FakeFs::new(cx.background_executor.clone());
13362        let project = Project::test(fs, [], cx).await;
13363        let (workspace, cx) =
13364            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13365        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13366
13367        let dirty_regular_buffer = cx.new(|cx| {
13368            TestItem::new(cx)
13369                .with_dirty(true)
13370                .with_label("1.txt")
13371                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13372        });
13373        let dirty_regular_buffer_2 = cx.new(|cx| {
13374            TestItem::new(cx)
13375                .with_dirty(true)
13376                .with_label("2.txt")
13377                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13378        });
13379        let dirty_multi_buffer_with_both = cx.new(|cx| {
13380            TestItem::new(cx)
13381                .with_dirty(true)
13382                .with_buffer_kind(ItemBufferKind::Multibuffer)
13383                .with_label("Fake Project Search")
13384                .with_project_items(&[
13385                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13386                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13387                ])
13388        });
13389        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13390        workspace.update_in(cx, |workspace, window, cx| {
13391            workspace.add_item(
13392                pane.clone(),
13393                Box::new(dirty_regular_buffer.clone()),
13394                None,
13395                false,
13396                false,
13397                window,
13398                cx,
13399            );
13400            workspace.add_item(
13401                pane.clone(),
13402                Box::new(dirty_regular_buffer_2.clone()),
13403                None,
13404                false,
13405                false,
13406                window,
13407                cx,
13408            );
13409            workspace.add_item(
13410                pane.clone(),
13411                Box::new(dirty_multi_buffer_with_both.clone()),
13412                None,
13413                false,
13414                false,
13415                window,
13416                cx,
13417            );
13418        });
13419
13420        pane.update_in(cx, |pane, window, cx| {
13421            pane.activate_item(2, true, true, window, cx);
13422            assert_eq!(
13423                pane.active_item().unwrap().item_id(),
13424                multi_buffer_with_both_files_id,
13425                "Should select the multi buffer in the pane"
13426            );
13427        });
13428        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13429            pane.close_other_items(
13430                &CloseOtherItems {
13431                    save_intent: Some(SaveIntent::Save),
13432                    close_pinned: true,
13433                },
13434                None,
13435                window,
13436                cx,
13437            )
13438        });
13439        cx.background_executor.run_until_parked();
13440        assert!(!cx.has_pending_prompt());
13441        close_all_but_multi_buffer_task
13442            .await
13443            .expect("Closing all buffers but the multi buffer failed");
13444        pane.update(cx, |pane, cx| {
13445            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
13446            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
13447            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
13448            assert_eq!(pane.items_len(), 1);
13449            assert_eq!(
13450                pane.active_item().unwrap().item_id(),
13451                multi_buffer_with_both_files_id,
13452                "Should have only the multi buffer left in the pane"
13453            );
13454            assert!(
13455                dirty_multi_buffer_with_both.read(cx).is_dirty,
13456                "The multi buffer containing the unsaved buffer should still be dirty"
13457            );
13458        });
13459
13460        dirty_regular_buffer.update(cx, |buffer, cx| {
13461            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
13462        });
13463
13464        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13465            pane.close_active_item(
13466                &CloseActiveItem {
13467                    save_intent: Some(SaveIntent::Close),
13468                    close_pinned: false,
13469                },
13470                window,
13471                cx,
13472            )
13473        });
13474        cx.background_executor.run_until_parked();
13475        assert!(
13476            cx.has_pending_prompt(),
13477            "Dirty multi buffer should prompt a save dialog"
13478        );
13479        cx.simulate_prompt_answer("Save");
13480        cx.background_executor.run_until_parked();
13481        close_multi_buffer_task
13482            .await
13483            .expect("Closing the multi buffer failed");
13484        pane.update(cx, |pane, cx| {
13485            assert_eq!(
13486                dirty_multi_buffer_with_both.read(cx).save_count,
13487                1,
13488                "Multi buffer item should get be saved"
13489            );
13490            // Test impl does not save inner items, so we do not assert them
13491            assert_eq!(
13492                pane.items_len(),
13493                0,
13494                "No more items should be left in the pane"
13495            );
13496            assert!(pane.active_item().is_none());
13497        });
13498    }
13499
13500    #[gpui::test]
13501    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
13502        cx: &mut TestAppContext,
13503    ) {
13504        init_test(cx);
13505
13506        let fs = FakeFs::new(cx.background_executor.clone());
13507        let project = Project::test(fs, [], cx).await;
13508        let (workspace, cx) =
13509            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13510        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13511
13512        let dirty_regular_buffer = cx.new(|cx| {
13513            TestItem::new(cx)
13514                .with_dirty(true)
13515                .with_label("1.txt")
13516                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13517        });
13518        let dirty_regular_buffer_2 = cx.new(|cx| {
13519            TestItem::new(cx)
13520                .with_dirty(true)
13521                .with_label("2.txt")
13522                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13523        });
13524        let clear_regular_buffer = cx.new(|cx| {
13525            TestItem::new(cx)
13526                .with_label("3.txt")
13527                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13528        });
13529
13530        let dirty_multi_buffer_with_both = cx.new(|cx| {
13531            TestItem::new(cx)
13532                .with_dirty(true)
13533                .with_buffer_kind(ItemBufferKind::Multibuffer)
13534                .with_label("Fake Project Search")
13535                .with_project_items(&[
13536                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13537                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13538                    clear_regular_buffer.read(cx).project_items[0].clone(),
13539                ])
13540        });
13541        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
13542        workspace.update_in(cx, |workspace, window, cx| {
13543            workspace.add_item(
13544                pane.clone(),
13545                Box::new(dirty_regular_buffer.clone()),
13546                None,
13547                false,
13548                false,
13549                window,
13550                cx,
13551            );
13552            workspace.add_item(
13553                pane.clone(),
13554                Box::new(dirty_multi_buffer_with_both.clone()),
13555                None,
13556                false,
13557                false,
13558                window,
13559                cx,
13560            );
13561        });
13562
13563        pane.update_in(cx, |pane, window, cx| {
13564            pane.activate_item(1, true, true, window, cx);
13565            assert_eq!(
13566                pane.active_item().unwrap().item_id(),
13567                multi_buffer_with_both_files_id,
13568                "Should select the multi buffer in the pane"
13569            );
13570        });
13571        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13572            pane.close_active_item(
13573                &CloseActiveItem {
13574                    save_intent: None,
13575                    close_pinned: false,
13576                },
13577                window,
13578                cx,
13579            )
13580        });
13581        cx.background_executor.run_until_parked();
13582        assert!(
13583            cx.has_pending_prompt(),
13584            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
13585        );
13586    }
13587
13588    /// Tests that when `close_on_file_delete` is enabled, files are automatically
13589    /// closed when they are deleted from disk.
13590    #[gpui::test]
13591    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
13592        init_test(cx);
13593
13594        // Enable the close_on_disk_deletion setting
13595        cx.update_global(|store: &mut SettingsStore, cx| {
13596            store.update_user_settings(cx, |settings| {
13597                settings.workspace.close_on_file_delete = Some(true);
13598            });
13599        });
13600
13601        let fs = FakeFs::new(cx.background_executor.clone());
13602        let project = Project::test(fs, [], cx).await;
13603        let (workspace, cx) =
13604            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13605        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13606
13607        // Create a test item that simulates a file
13608        let item = cx.new(|cx| {
13609            TestItem::new(cx)
13610                .with_label("test.txt")
13611                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13612        });
13613
13614        // Add item to workspace
13615        workspace.update_in(cx, |workspace, window, cx| {
13616            workspace.add_item(
13617                pane.clone(),
13618                Box::new(item.clone()),
13619                None,
13620                false,
13621                false,
13622                window,
13623                cx,
13624            );
13625        });
13626
13627        // Verify the item is in the pane
13628        pane.read_with(cx, |pane, _| {
13629            assert_eq!(pane.items().count(), 1);
13630        });
13631
13632        // Simulate file deletion by setting the item's deleted state
13633        item.update(cx, |item, _| {
13634            item.set_has_deleted_file(true);
13635        });
13636
13637        // Emit UpdateTab event to trigger the close behavior
13638        cx.run_until_parked();
13639        item.update(cx, |_, cx| {
13640            cx.emit(ItemEvent::UpdateTab);
13641        });
13642
13643        // Allow the close operation to complete
13644        cx.run_until_parked();
13645
13646        // Verify the item was automatically closed
13647        pane.read_with(cx, |pane, _| {
13648            assert_eq!(
13649                pane.items().count(),
13650                0,
13651                "Item should be automatically closed when file is deleted"
13652            );
13653        });
13654    }
13655
13656    /// Tests that when `close_on_file_delete` is disabled (default), files remain
13657    /// open with a strikethrough when they are deleted from disk.
13658    #[gpui::test]
13659    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
13660        init_test(cx);
13661
13662        // Ensure close_on_disk_deletion is disabled (default)
13663        cx.update_global(|store: &mut SettingsStore, cx| {
13664            store.update_user_settings(cx, |settings| {
13665                settings.workspace.close_on_file_delete = Some(false);
13666            });
13667        });
13668
13669        let fs = FakeFs::new(cx.background_executor.clone());
13670        let project = Project::test(fs, [], cx).await;
13671        let (workspace, cx) =
13672            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13673        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13674
13675        // Create a test item that simulates a file
13676        let item = cx.new(|cx| {
13677            TestItem::new(cx)
13678                .with_label("test.txt")
13679                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13680        });
13681
13682        // Add item to workspace
13683        workspace.update_in(cx, |workspace, window, cx| {
13684            workspace.add_item(
13685                pane.clone(),
13686                Box::new(item.clone()),
13687                None,
13688                false,
13689                false,
13690                window,
13691                cx,
13692            );
13693        });
13694
13695        // Verify the item is in the pane
13696        pane.read_with(cx, |pane, _| {
13697            assert_eq!(pane.items().count(), 1);
13698        });
13699
13700        // Simulate file deletion
13701        item.update(cx, |item, _| {
13702            item.set_has_deleted_file(true);
13703        });
13704
13705        // Emit UpdateTab event
13706        cx.run_until_parked();
13707        item.update(cx, |_, cx| {
13708            cx.emit(ItemEvent::UpdateTab);
13709        });
13710
13711        // Allow any potential close operation to complete
13712        cx.run_until_parked();
13713
13714        // Verify the item remains open (with strikethrough)
13715        pane.read_with(cx, |pane, _| {
13716            assert_eq!(
13717                pane.items().count(),
13718                1,
13719                "Item should remain open when close_on_disk_deletion is disabled"
13720            );
13721        });
13722
13723        // Verify the item shows as deleted
13724        item.read_with(cx, |item, _| {
13725            assert!(
13726                item.has_deleted_file,
13727                "Item should be marked as having deleted file"
13728            );
13729        });
13730    }
13731
13732    /// Tests that dirty files are not automatically closed when deleted from disk,
13733    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
13734    /// unsaved changes without being prompted.
13735    #[gpui::test]
13736    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
13737        init_test(cx);
13738
13739        // Enable the close_on_file_delete setting
13740        cx.update_global(|store: &mut SettingsStore, cx| {
13741            store.update_user_settings(cx, |settings| {
13742                settings.workspace.close_on_file_delete = Some(true);
13743            });
13744        });
13745
13746        let fs = FakeFs::new(cx.background_executor.clone());
13747        let project = Project::test(fs, [], cx).await;
13748        let (workspace, cx) =
13749            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13750        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13751
13752        // Create a dirty test item
13753        let item = cx.new(|cx| {
13754            TestItem::new(cx)
13755                .with_dirty(true)
13756                .with_label("test.txt")
13757                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
13758        });
13759
13760        // Add item to workspace
13761        workspace.update_in(cx, |workspace, window, cx| {
13762            workspace.add_item(
13763                pane.clone(),
13764                Box::new(item.clone()),
13765                None,
13766                false,
13767                false,
13768                window,
13769                cx,
13770            );
13771        });
13772
13773        // Simulate file deletion
13774        item.update(cx, |item, _| {
13775            item.set_has_deleted_file(true);
13776        });
13777
13778        // Emit UpdateTab event to trigger the close behavior
13779        cx.run_until_parked();
13780        item.update(cx, |_, cx| {
13781            cx.emit(ItemEvent::UpdateTab);
13782        });
13783
13784        // Allow any potential close operation to complete
13785        cx.run_until_parked();
13786
13787        // Verify the item remains open (dirty files are not auto-closed)
13788        pane.read_with(cx, |pane, _| {
13789            assert_eq!(
13790                pane.items().count(),
13791                1,
13792                "Dirty items should not be automatically closed even when file is deleted"
13793            );
13794        });
13795
13796        // Verify the item is marked as deleted and still dirty
13797        item.read_with(cx, |item, _| {
13798            assert!(
13799                item.has_deleted_file,
13800                "Item should be marked as having deleted file"
13801            );
13802            assert!(item.is_dirty, "Item should still be dirty");
13803        });
13804    }
13805
13806    /// Tests that navigation history is cleaned up when files are auto-closed
13807    /// due to deletion from disk.
13808    #[gpui::test]
13809    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
13810        init_test(cx);
13811
13812        // Enable the close_on_file_delete setting
13813        cx.update_global(|store: &mut SettingsStore, cx| {
13814            store.update_user_settings(cx, |settings| {
13815                settings.workspace.close_on_file_delete = Some(true);
13816            });
13817        });
13818
13819        let fs = FakeFs::new(cx.background_executor.clone());
13820        let project = Project::test(fs, [], cx).await;
13821        let (workspace, cx) =
13822            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13823        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13824
13825        // Create test items
13826        let item1 = cx.new(|cx| {
13827            TestItem::new(cx)
13828                .with_label("test1.txt")
13829                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
13830        });
13831        let item1_id = item1.item_id();
13832
13833        let item2 = cx.new(|cx| {
13834            TestItem::new(cx)
13835                .with_label("test2.txt")
13836                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
13837        });
13838
13839        // Add items to workspace
13840        workspace.update_in(cx, |workspace, window, cx| {
13841            workspace.add_item(
13842                pane.clone(),
13843                Box::new(item1.clone()),
13844                None,
13845                false,
13846                false,
13847                window,
13848                cx,
13849            );
13850            workspace.add_item(
13851                pane.clone(),
13852                Box::new(item2.clone()),
13853                None,
13854                false,
13855                false,
13856                window,
13857                cx,
13858            );
13859        });
13860
13861        // Activate item1 to ensure it gets navigation entries
13862        pane.update_in(cx, |pane, window, cx| {
13863            pane.activate_item(0, true, true, window, cx);
13864        });
13865
13866        // Switch to item2 and back to create navigation history
13867        pane.update_in(cx, |pane, window, cx| {
13868            pane.activate_item(1, true, true, window, cx);
13869        });
13870        cx.run_until_parked();
13871
13872        pane.update_in(cx, |pane, window, cx| {
13873            pane.activate_item(0, true, true, window, cx);
13874        });
13875        cx.run_until_parked();
13876
13877        // Simulate file deletion for item1
13878        item1.update(cx, |item, _| {
13879            item.set_has_deleted_file(true);
13880        });
13881
13882        // Emit UpdateTab event to trigger the close behavior
13883        item1.update(cx, |_, cx| {
13884            cx.emit(ItemEvent::UpdateTab);
13885        });
13886        cx.run_until_parked();
13887
13888        // Verify item1 was closed
13889        pane.read_with(cx, |pane, _| {
13890            assert_eq!(
13891                pane.items().count(),
13892                1,
13893                "Should have 1 item remaining after auto-close"
13894            );
13895        });
13896
13897        // Check navigation history after close
13898        let has_item = pane.read_with(cx, |pane, cx| {
13899            let mut has_item = false;
13900            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
13901                if entry.item.id() == item1_id {
13902                    has_item = true;
13903                }
13904            });
13905            has_item
13906        });
13907
13908        assert!(
13909            !has_item,
13910            "Navigation history should not contain closed item entries"
13911        );
13912    }
13913
13914    #[gpui::test]
13915    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
13916        cx: &mut TestAppContext,
13917    ) {
13918        init_test(cx);
13919
13920        let fs = FakeFs::new(cx.background_executor.clone());
13921        let project = Project::test(fs, [], cx).await;
13922        let (workspace, cx) =
13923            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13924        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13925
13926        let dirty_regular_buffer = cx.new(|cx| {
13927            TestItem::new(cx)
13928                .with_dirty(true)
13929                .with_label("1.txt")
13930                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
13931        });
13932        let dirty_regular_buffer_2 = cx.new(|cx| {
13933            TestItem::new(cx)
13934                .with_dirty(true)
13935                .with_label("2.txt")
13936                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
13937        });
13938        let clear_regular_buffer = cx.new(|cx| {
13939            TestItem::new(cx)
13940                .with_label("3.txt")
13941                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
13942        });
13943
13944        let dirty_multi_buffer = cx.new(|cx| {
13945            TestItem::new(cx)
13946                .with_dirty(true)
13947                .with_buffer_kind(ItemBufferKind::Multibuffer)
13948                .with_label("Fake Project Search")
13949                .with_project_items(&[
13950                    dirty_regular_buffer.read(cx).project_items[0].clone(),
13951                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
13952                    clear_regular_buffer.read(cx).project_items[0].clone(),
13953                ])
13954        });
13955        workspace.update_in(cx, |workspace, window, cx| {
13956            workspace.add_item(
13957                pane.clone(),
13958                Box::new(dirty_regular_buffer.clone()),
13959                None,
13960                false,
13961                false,
13962                window,
13963                cx,
13964            );
13965            workspace.add_item(
13966                pane.clone(),
13967                Box::new(dirty_regular_buffer_2.clone()),
13968                None,
13969                false,
13970                false,
13971                window,
13972                cx,
13973            );
13974            workspace.add_item(
13975                pane.clone(),
13976                Box::new(dirty_multi_buffer.clone()),
13977                None,
13978                false,
13979                false,
13980                window,
13981                cx,
13982            );
13983        });
13984
13985        pane.update_in(cx, |pane, window, cx| {
13986            pane.activate_item(2, true, true, window, cx);
13987            assert_eq!(
13988                pane.active_item().unwrap().item_id(),
13989                dirty_multi_buffer.item_id(),
13990                "Should select the multi buffer in the pane"
13991            );
13992        });
13993        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
13994            pane.close_active_item(
13995                &CloseActiveItem {
13996                    save_intent: None,
13997                    close_pinned: false,
13998                },
13999                window,
14000                cx,
14001            )
14002        });
14003        cx.background_executor.run_until_parked();
14004        assert!(
14005            !cx.has_pending_prompt(),
14006            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
14007        );
14008        close_multi_buffer_task
14009            .await
14010            .expect("Closing multi buffer failed");
14011        pane.update(cx, |pane, cx| {
14012            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
14013            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
14014            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
14015            assert_eq!(
14016                pane.items()
14017                    .map(|item| item.item_id())
14018                    .sorted()
14019                    .collect::<Vec<_>>(),
14020                vec![
14021                    dirty_regular_buffer.item_id(),
14022                    dirty_regular_buffer_2.item_id(),
14023                ],
14024                "Should have no multi buffer left in the pane"
14025            );
14026            assert!(dirty_regular_buffer.read(cx).is_dirty);
14027            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
14028        });
14029    }
14030
14031    #[gpui::test]
14032    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
14033        init_test(cx);
14034        let fs = FakeFs::new(cx.executor());
14035        let project = Project::test(fs, [], cx).await;
14036        let (multi_workspace, cx) =
14037            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14038        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14039
14040        // Add a new panel to the right dock, opening the dock and setting the
14041        // focus to the new panel.
14042        let panel = workspace.update_in(cx, |workspace, window, cx| {
14043            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14044            workspace.add_panel(panel.clone(), window, cx);
14045
14046            workspace
14047                .right_dock()
14048                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14049
14050            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14051
14052            panel
14053        });
14054
14055        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
14056        // panel to the next valid position which, in this case, is the left
14057        // dock.
14058        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14059        workspace.update(cx, |workspace, cx| {
14060            assert!(workspace.left_dock().read(cx).is_open());
14061            assert_eq!(panel.read(cx).position, DockPosition::Left);
14062        });
14063
14064        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
14065        // panel to the next valid position which, in this case, is the bottom
14066        // dock.
14067        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14068        workspace.update(cx, |workspace, cx| {
14069            assert!(workspace.bottom_dock().read(cx).is_open());
14070            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
14071        });
14072
14073        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
14074        // around moving the panel to its initial position, the right dock.
14075        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14076        workspace.update(cx, |workspace, cx| {
14077            assert!(workspace.right_dock().read(cx).is_open());
14078            assert_eq!(panel.read(cx).position, DockPosition::Right);
14079        });
14080
14081        // Remove focus from the panel, ensuring that, if the panel is not
14082        // focused, the `MoveFocusedPanelToNextPosition` action does not update
14083        // the panel's position, so the panel is still in the right dock.
14084        workspace.update_in(cx, |workspace, window, cx| {
14085            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14086        });
14087
14088        cx.dispatch_action(MoveFocusedPanelToNextPosition);
14089        workspace.update(cx, |workspace, cx| {
14090            assert!(workspace.right_dock().read(cx).is_open());
14091            assert_eq!(panel.read(cx).position, DockPosition::Right);
14092        });
14093    }
14094
14095    #[gpui::test]
14096    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
14097        init_test(cx);
14098
14099        let fs = FakeFs::new(cx.executor());
14100        let project = Project::test(fs, [], cx).await;
14101        let (workspace, cx) =
14102            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14103
14104        let item_1 = cx.new(|cx| {
14105            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
14106        });
14107        workspace.update_in(cx, |workspace, window, cx| {
14108            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
14109            workspace.move_item_to_pane_in_direction(
14110                &MoveItemToPaneInDirection {
14111                    direction: SplitDirection::Right,
14112                    focus: true,
14113                    clone: false,
14114                },
14115                window,
14116                cx,
14117            );
14118            workspace.move_item_to_pane_at_index(
14119                &MoveItemToPane {
14120                    destination: 3,
14121                    focus: true,
14122                    clone: false,
14123                },
14124                window,
14125                cx,
14126            );
14127
14128            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
14129            assert_eq!(
14130                pane_items_paths(&workspace.active_pane, cx),
14131                vec!["first.txt".to_string()],
14132                "Single item was not moved anywhere"
14133            );
14134        });
14135
14136        let item_2 = cx.new(|cx| {
14137            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
14138        });
14139        workspace.update_in(cx, |workspace, window, cx| {
14140            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
14141            assert_eq!(
14142                pane_items_paths(&workspace.panes[0], cx),
14143                vec!["first.txt".to_string(), "second.txt".to_string()],
14144            );
14145            workspace.move_item_to_pane_in_direction(
14146                &MoveItemToPaneInDirection {
14147                    direction: SplitDirection::Right,
14148                    focus: true,
14149                    clone: false,
14150                },
14151                window,
14152                cx,
14153            );
14154
14155            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
14156            assert_eq!(
14157                pane_items_paths(&workspace.panes[0], cx),
14158                vec!["first.txt".to_string()],
14159                "After moving, one item should be left in the original pane"
14160            );
14161            assert_eq!(
14162                pane_items_paths(&workspace.panes[1], cx),
14163                vec!["second.txt".to_string()],
14164                "New item should have been moved to the new pane"
14165            );
14166        });
14167
14168        let item_3 = cx.new(|cx| {
14169            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
14170        });
14171        workspace.update_in(cx, |workspace, window, cx| {
14172            let original_pane = workspace.panes[0].clone();
14173            workspace.set_active_pane(&original_pane, window, cx);
14174            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
14175            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
14176            assert_eq!(
14177                pane_items_paths(&workspace.active_pane, cx),
14178                vec!["first.txt".to_string(), "third.txt".to_string()],
14179                "New pane should be ready to move one item out"
14180            );
14181
14182            workspace.move_item_to_pane_at_index(
14183                &MoveItemToPane {
14184                    destination: 3,
14185                    focus: true,
14186                    clone: false,
14187                },
14188                window,
14189                cx,
14190            );
14191            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
14192            assert_eq!(
14193                pane_items_paths(&workspace.active_pane, cx),
14194                vec!["first.txt".to_string()],
14195                "After moving, one item should be left in the original pane"
14196            );
14197            assert_eq!(
14198                pane_items_paths(&workspace.panes[1], cx),
14199                vec!["second.txt".to_string()],
14200                "Previously created pane should be unchanged"
14201            );
14202            assert_eq!(
14203                pane_items_paths(&workspace.panes[2], cx),
14204                vec!["third.txt".to_string()],
14205                "New item should have been moved to the new pane"
14206            );
14207        });
14208    }
14209
14210    #[gpui::test]
14211    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
14212        init_test(cx);
14213
14214        let fs = FakeFs::new(cx.executor());
14215        let project = Project::test(fs, [], cx).await;
14216        let (workspace, cx) =
14217            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14218
14219        let item_1 = cx.new(|cx| {
14220            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
14221        });
14222        workspace.update_in(cx, |workspace, window, cx| {
14223            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
14224            workspace.move_item_to_pane_in_direction(
14225                &MoveItemToPaneInDirection {
14226                    direction: SplitDirection::Right,
14227                    focus: true,
14228                    clone: true,
14229                },
14230                window,
14231                cx,
14232            );
14233        });
14234        cx.run_until_parked();
14235        workspace.update_in(cx, |workspace, window, cx| {
14236            workspace.move_item_to_pane_at_index(
14237                &MoveItemToPane {
14238                    destination: 3,
14239                    focus: true,
14240                    clone: true,
14241                },
14242                window,
14243                cx,
14244            );
14245        });
14246        cx.run_until_parked();
14247
14248        workspace.update(cx, |workspace, cx| {
14249            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
14250            for pane in workspace.panes() {
14251                assert_eq!(
14252                    pane_items_paths(pane, cx),
14253                    vec!["first.txt".to_string()],
14254                    "Single item exists in all panes"
14255                );
14256            }
14257        });
14258
14259        // verify that the active pane has been updated after waiting for the
14260        // pane focus event to fire and resolve
14261        workspace.read_with(cx, |workspace, _app| {
14262            assert_eq!(
14263                workspace.active_pane(),
14264                &workspace.panes[2],
14265                "The third pane should be the active one: {:?}",
14266                workspace.panes
14267            );
14268        })
14269    }
14270
14271    #[gpui::test]
14272    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
14273        init_test(cx);
14274
14275        let fs = FakeFs::new(cx.executor());
14276        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
14277
14278        let project = Project::test(fs, ["root".as_ref()], cx).await;
14279        let (workspace, cx) =
14280            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14281
14282        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14283        // Add item to pane A with project path
14284        let item_a = cx.new(|cx| {
14285            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14286        });
14287        workspace.update_in(cx, |workspace, window, cx| {
14288            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
14289        });
14290
14291        // Split to create pane B
14292        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
14293            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
14294        });
14295
14296        // Add item with SAME project path to pane B, and pin it
14297        let item_b = cx.new(|cx| {
14298            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14299        });
14300        pane_b.update_in(cx, |pane, window, cx| {
14301            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14302            pane.set_pinned_count(1);
14303        });
14304
14305        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
14306        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
14307
14308        // close_pinned: false should only close the unpinned copy
14309        workspace.update_in(cx, |workspace, window, cx| {
14310            workspace.close_item_in_all_panes(
14311                &CloseItemInAllPanes {
14312                    save_intent: Some(SaveIntent::Close),
14313                    close_pinned: false,
14314                },
14315                window,
14316                cx,
14317            )
14318        });
14319        cx.executor().run_until_parked();
14320
14321        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
14322        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14323        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
14324        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
14325
14326        // Split again, seeing as closing the previous item also closed its
14327        // pane, so only pane remains, which does not allow us to properly test
14328        // that both items close when `close_pinned: true`.
14329        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
14330            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
14331        });
14332
14333        // Add an item with the same project path to pane C so that
14334        // close_item_in_all_panes can determine what to close across all panes
14335        // (it reads the active item from the active pane, and split_pane
14336        // creates an empty pane).
14337        let item_c = cx.new(|cx| {
14338            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
14339        });
14340        pane_c.update_in(cx, |pane, window, cx| {
14341            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
14342        });
14343
14344        // close_pinned: true should close the pinned copy too
14345        workspace.update_in(cx, |workspace, window, cx| {
14346            let panes_count = workspace.panes().len();
14347            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
14348
14349            workspace.close_item_in_all_panes(
14350                &CloseItemInAllPanes {
14351                    save_intent: Some(SaveIntent::Close),
14352                    close_pinned: true,
14353                },
14354                window,
14355                cx,
14356            )
14357        });
14358        cx.executor().run_until_parked();
14359
14360        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
14361        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
14362        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
14363        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
14364    }
14365
14366    mod register_project_item_tests {
14367
14368        use super::*;
14369
14370        // View
14371        struct TestPngItemView {
14372            focus_handle: FocusHandle,
14373        }
14374        // Model
14375        struct TestPngItem {}
14376
14377        impl project::ProjectItem for TestPngItem {
14378            fn try_open(
14379                _project: &Entity<Project>,
14380                path: &ProjectPath,
14381                cx: &mut App,
14382            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14383                if path.path.extension().unwrap() == "png" {
14384                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
14385                } else {
14386                    None
14387                }
14388            }
14389
14390            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14391                None
14392            }
14393
14394            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14395                None
14396            }
14397
14398            fn is_dirty(&self) -> bool {
14399                false
14400            }
14401        }
14402
14403        impl Item for TestPngItemView {
14404            type Event = ();
14405            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14406                "".into()
14407            }
14408        }
14409        impl EventEmitter<()> for TestPngItemView {}
14410        impl Focusable for TestPngItemView {
14411            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14412                self.focus_handle.clone()
14413            }
14414        }
14415
14416        impl Render for TestPngItemView {
14417            fn render(
14418                &mut self,
14419                _window: &mut Window,
14420                _cx: &mut Context<Self>,
14421            ) -> impl IntoElement {
14422                Empty
14423            }
14424        }
14425
14426        impl ProjectItem for TestPngItemView {
14427            type Item = TestPngItem;
14428
14429            fn for_project_item(
14430                _project: Entity<Project>,
14431                _pane: Option<&Pane>,
14432                _item: Entity<Self::Item>,
14433                _: &mut Window,
14434                cx: &mut Context<Self>,
14435            ) -> Self
14436            where
14437                Self: Sized,
14438            {
14439                Self {
14440                    focus_handle: cx.focus_handle(),
14441                }
14442            }
14443        }
14444
14445        // View
14446        struct TestIpynbItemView {
14447            focus_handle: FocusHandle,
14448        }
14449        // Model
14450        struct TestIpynbItem {}
14451
14452        impl project::ProjectItem for TestIpynbItem {
14453            fn try_open(
14454                _project: &Entity<Project>,
14455                path: &ProjectPath,
14456                cx: &mut App,
14457            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
14458                if path.path.extension().unwrap() == "ipynb" {
14459                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
14460                } else {
14461                    None
14462                }
14463            }
14464
14465            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
14466                None
14467            }
14468
14469            fn project_path(&self, _: &App) -> Option<ProjectPath> {
14470                None
14471            }
14472
14473            fn is_dirty(&self) -> bool {
14474                false
14475            }
14476        }
14477
14478        impl Item for TestIpynbItemView {
14479            type Event = ();
14480            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14481                "".into()
14482            }
14483        }
14484        impl EventEmitter<()> for TestIpynbItemView {}
14485        impl Focusable for TestIpynbItemView {
14486            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14487                self.focus_handle.clone()
14488            }
14489        }
14490
14491        impl Render for TestIpynbItemView {
14492            fn render(
14493                &mut self,
14494                _window: &mut Window,
14495                _cx: &mut Context<Self>,
14496            ) -> impl IntoElement {
14497                Empty
14498            }
14499        }
14500
14501        impl ProjectItem for TestIpynbItemView {
14502            type Item = TestIpynbItem;
14503
14504            fn for_project_item(
14505                _project: Entity<Project>,
14506                _pane: Option<&Pane>,
14507                _item: Entity<Self::Item>,
14508                _: &mut Window,
14509                cx: &mut Context<Self>,
14510            ) -> Self
14511            where
14512                Self: Sized,
14513            {
14514                Self {
14515                    focus_handle: cx.focus_handle(),
14516                }
14517            }
14518        }
14519
14520        struct TestAlternatePngItemView {
14521            focus_handle: FocusHandle,
14522        }
14523
14524        impl Item for TestAlternatePngItemView {
14525            type Event = ();
14526            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
14527                "".into()
14528            }
14529        }
14530
14531        impl EventEmitter<()> for TestAlternatePngItemView {}
14532        impl Focusable for TestAlternatePngItemView {
14533            fn focus_handle(&self, _cx: &App) -> FocusHandle {
14534                self.focus_handle.clone()
14535            }
14536        }
14537
14538        impl Render for TestAlternatePngItemView {
14539            fn render(
14540                &mut self,
14541                _window: &mut Window,
14542                _cx: &mut Context<Self>,
14543            ) -> impl IntoElement {
14544                Empty
14545            }
14546        }
14547
14548        impl ProjectItem for TestAlternatePngItemView {
14549            type Item = TestPngItem;
14550
14551            fn for_project_item(
14552                _project: Entity<Project>,
14553                _pane: Option<&Pane>,
14554                _item: Entity<Self::Item>,
14555                _: &mut Window,
14556                cx: &mut Context<Self>,
14557            ) -> Self
14558            where
14559                Self: Sized,
14560            {
14561                Self {
14562                    focus_handle: cx.focus_handle(),
14563                }
14564            }
14565        }
14566
14567        #[gpui::test]
14568        async fn test_register_project_item(cx: &mut TestAppContext) {
14569            init_test(cx);
14570
14571            cx.update(|cx| {
14572                register_project_item::<TestPngItemView>(cx);
14573                register_project_item::<TestIpynbItemView>(cx);
14574            });
14575
14576            let fs = FakeFs::new(cx.executor());
14577            fs.insert_tree(
14578                "/root1",
14579                json!({
14580                    "one.png": "BINARYDATAHERE",
14581                    "two.ipynb": "{ totally a notebook }",
14582                    "three.txt": "editing text, sure why not?"
14583                }),
14584            )
14585            .await;
14586
14587            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14588            let (workspace, cx) =
14589                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14590
14591            let worktree_id = project.update(cx, |project, cx| {
14592                project.worktrees(cx).next().unwrap().read(cx).id()
14593            });
14594
14595            let handle = workspace
14596                .update_in(cx, |workspace, window, cx| {
14597                    let project_path = (worktree_id, rel_path("one.png"));
14598                    workspace.open_path(project_path, None, true, window, cx)
14599                })
14600                .await
14601                .unwrap();
14602
14603            // Now we can check if the handle we got back errored or not
14604            assert_eq!(
14605                handle.to_any_view().entity_type(),
14606                TypeId::of::<TestPngItemView>()
14607            );
14608
14609            let handle = workspace
14610                .update_in(cx, |workspace, window, cx| {
14611                    let project_path = (worktree_id, rel_path("two.ipynb"));
14612                    workspace.open_path(project_path, None, true, window, cx)
14613                })
14614                .await
14615                .unwrap();
14616
14617            assert_eq!(
14618                handle.to_any_view().entity_type(),
14619                TypeId::of::<TestIpynbItemView>()
14620            );
14621
14622            let handle = workspace
14623                .update_in(cx, |workspace, window, cx| {
14624                    let project_path = (worktree_id, rel_path("three.txt"));
14625                    workspace.open_path(project_path, None, true, window, cx)
14626                })
14627                .await;
14628            assert!(handle.is_err());
14629        }
14630
14631        #[gpui::test]
14632        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
14633            init_test(cx);
14634
14635            cx.update(|cx| {
14636                register_project_item::<TestPngItemView>(cx);
14637                register_project_item::<TestAlternatePngItemView>(cx);
14638            });
14639
14640            let fs = FakeFs::new(cx.executor());
14641            fs.insert_tree(
14642                "/root1",
14643                json!({
14644                    "one.png": "BINARYDATAHERE",
14645                    "two.ipynb": "{ totally a notebook }",
14646                    "three.txt": "editing text, sure why not?"
14647                }),
14648            )
14649            .await;
14650            let project = Project::test(fs, ["root1".as_ref()], cx).await;
14651            let (workspace, cx) =
14652                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14653            let worktree_id = project.update(cx, |project, cx| {
14654                project.worktrees(cx).next().unwrap().read(cx).id()
14655            });
14656
14657            let handle = workspace
14658                .update_in(cx, |workspace, window, cx| {
14659                    let project_path = (worktree_id, rel_path("one.png"));
14660                    workspace.open_path(project_path, None, true, window, cx)
14661                })
14662                .await
14663                .unwrap();
14664
14665            // This _must_ be the second item registered
14666            assert_eq!(
14667                handle.to_any_view().entity_type(),
14668                TypeId::of::<TestAlternatePngItemView>()
14669            );
14670
14671            let handle = workspace
14672                .update_in(cx, |workspace, window, cx| {
14673                    let project_path = (worktree_id, rel_path("three.txt"));
14674                    workspace.open_path(project_path, None, true, window, cx)
14675                })
14676                .await;
14677            assert!(handle.is_err());
14678        }
14679    }
14680
14681    #[gpui::test]
14682    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
14683        init_test(cx);
14684
14685        let fs = FakeFs::new(cx.executor());
14686        let project = Project::test(fs, [], cx).await;
14687        let (workspace, _cx) =
14688            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14689
14690        // Test with status bar shown (default)
14691        workspace.read_with(cx, |workspace, cx| {
14692            let visible = workspace.status_bar_visible(cx);
14693            assert!(visible, "Status bar should be visible by default");
14694        });
14695
14696        // Test with status bar hidden
14697        cx.update_global(|store: &mut SettingsStore, cx| {
14698            store.update_user_settings(cx, |settings| {
14699                settings.status_bar.get_or_insert_default().show = Some(false);
14700            });
14701        });
14702
14703        workspace.read_with(cx, |workspace, cx| {
14704            let visible = workspace.status_bar_visible(cx);
14705            assert!(!visible, "Status bar should be hidden when show is false");
14706        });
14707
14708        // Test with status bar shown explicitly
14709        cx.update_global(|store: &mut SettingsStore, cx| {
14710            store.update_user_settings(cx, |settings| {
14711                settings.status_bar.get_or_insert_default().show = Some(true);
14712            });
14713        });
14714
14715        workspace.read_with(cx, |workspace, cx| {
14716            let visible = workspace.status_bar_visible(cx);
14717            assert!(visible, "Status bar should be visible when show is true");
14718        });
14719    }
14720
14721    #[gpui::test]
14722    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
14723        init_test(cx);
14724
14725        let fs = FakeFs::new(cx.executor());
14726        let project = Project::test(fs, [], cx).await;
14727        let (multi_workspace, cx) =
14728            cx.add_window_view(|window, cx| MultiWorkspace::test_new(project, window, cx));
14729        let workspace = multi_workspace.read_with(cx, |mw, _| mw.workspace().clone());
14730        let panel = workspace.update_in(cx, |workspace, window, cx| {
14731            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14732            workspace.add_panel(panel.clone(), window, cx);
14733
14734            workspace
14735                .right_dock()
14736                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
14737
14738            panel
14739        });
14740
14741        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
14742        let item_a = cx.new(TestItem::new);
14743        let item_b = cx.new(TestItem::new);
14744        let item_a_id = item_a.entity_id();
14745        let item_b_id = item_b.entity_id();
14746
14747        pane.update_in(cx, |pane, window, cx| {
14748            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
14749            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
14750        });
14751
14752        pane.read_with(cx, |pane, _| {
14753            assert_eq!(pane.items_len(), 2);
14754            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
14755        });
14756
14757        workspace.update_in(cx, |workspace, window, cx| {
14758            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14759        });
14760
14761        workspace.update_in(cx, |_, window, cx| {
14762            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14763        });
14764
14765        // Assert that the `pane::CloseActiveItem` action is handled at the
14766        // workspace level when one of the dock panels is focused and, in that
14767        // case, the center pane's active item is closed but the focus is not
14768        // moved.
14769        cx.dispatch_action(pane::CloseActiveItem::default());
14770        cx.run_until_parked();
14771
14772        pane.read_with(cx, |pane, _| {
14773            assert_eq!(pane.items_len(), 1);
14774            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
14775        });
14776
14777        workspace.update_in(cx, |workspace, window, cx| {
14778            assert!(workspace.right_dock().read(cx).is_open());
14779            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
14780        });
14781    }
14782
14783    #[gpui::test]
14784    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
14785        init_test(cx);
14786        let fs = FakeFs::new(cx.executor());
14787
14788        let project_a = Project::test(fs.clone(), [], cx).await;
14789        let project_b = Project::test(fs, [], cx).await;
14790
14791        let multi_workspace_handle =
14792            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
14793        cx.run_until_parked();
14794
14795        multi_workspace_handle
14796            .update(cx, |mw, _window, cx| {
14797                mw.open_sidebar(cx);
14798            })
14799            .unwrap();
14800
14801        let workspace_a = multi_workspace_handle
14802            .read_with(cx, |mw, _| mw.workspace().clone())
14803            .unwrap();
14804
14805        let _workspace_b = multi_workspace_handle
14806            .update(cx, |mw, window, cx| {
14807                mw.test_add_workspace(project_b, window, cx)
14808            })
14809            .unwrap();
14810
14811        // Switch to workspace A
14812        multi_workspace_handle
14813            .update(cx, |mw, window, cx| {
14814                let workspace = mw.workspaces().next().unwrap().clone();
14815                mw.activate(workspace, window, cx);
14816            })
14817            .unwrap();
14818
14819        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
14820
14821        // Add a panel to workspace A's right dock and open the dock
14822        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
14823            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14824            workspace.add_panel(panel.clone(), window, cx);
14825            workspace
14826                .right_dock()
14827                .update(cx, |dock, cx| dock.set_open(true, window, cx));
14828            panel
14829        });
14830
14831        // Focus the panel through the workspace (matching existing test pattern)
14832        workspace_a.update_in(cx, |workspace, window, cx| {
14833            workspace.toggle_panel_focus::<TestPanel>(window, cx);
14834        });
14835
14836        // Zoom the panel
14837        panel.update_in(cx, |panel, window, cx| {
14838            panel.set_zoomed(true, window, cx);
14839        });
14840
14841        // Verify the panel is zoomed and the dock is open
14842        workspace_a.update_in(cx, |workspace, window, cx| {
14843            assert!(
14844                workspace.right_dock().read(cx).is_open(),
14845                "dock should be open before switch"
14846            );
14847            assert!(
14848                panel.is_zoomed(window, cx),
14849                "panel should be zoomed before switch"
14850            );
14851            assert!(
14852                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
14853                "panel should be focused before switch"
14854            );
14855        });
14856
14857        // Switch to workspace B
14858        multi_workspace_handle
14859            .update(cx, |mw, window, cx| {
14860                let workspace = mw.workspaces().nth(1).unwrap().clone();
14861                mw.activate(workspace, window, cx);
14862            })
14863            .unwrap();
14864        cx.run_until_parked();
14865
14866        // Switch back to workspace A
14867        multi_workspace_handle
14868            .update(cx, |mw, window, cx| {
14869                let workspace = mw.workspaces().next().unwrap().clone();
14870                mw.activate(workspace, window, cx);
14871            })
14872            .unwrap();
14873        cx.run_until_parked();
14874
14875        // Verify the panel is still zoomed and the dock is still open
14876        workspace_a.update_in(cx, |workspace, window, cx| {
14877            assert!(
14878                workspace.right_dock().read(cx).is_open(),
14879                "dock should still be open after switching back"
14880            );
14881            assert!(
14882                panel.is_zoomed(window, cx),
14883                "panel should still be zoomed after switching back"
14884            );
14885        });
14886    }
14887
14888    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
14889        pane.read(cx)
14890            .items()
14891            .flat_map(|item| {
14892                item.project_paths(cx)
14893                    .into_iter()
14894                    .map(|path| path.path.display(PathStyle::local()).into_owned())
14895            })
14896            .collect()
14897    }
14898
14899    pub fn init_test(cx: &mut TestAppContext) {
14900        cx.update(|cx| {
14901            let settings_store = SettingsStore::test(cx);
14902            cx.set_global(settings_store);
14903            cx.set_global(db::AppDatabase::test_new());
14904            theme_settings::init(theme::LoadThemes::JustBase, cx);
14905        });
14906    }
14907
14908    #[gpui::test]
14909    async fn test_toggle_theme_mode_persists_and_updates_active_theme(cx: &mut TestAppContext) {
14910        use settings::{ThemeName, ThemeSelection};
14911        use theme::SystemAppearance;
14912        use zed_actions::theme::ToggleMode;
14913
14914        init_test(cx);
14915
14916        let fs = FakeFs::new(cx.executor());
14917        let settings_fs: Arc<dyn fs::Fs> = fs.clone();
14918
14919        fs.insert_tree(path!("/root"), json!({ "file.rs": "fn main() {}\n" }))
14920            .await;
14921
14922        // Build a test project and workspace view so the test can invoke
14923        // the workspace action handler the same way the UI would.
14924        let project = Project::test(fs.clone(), [path!("/root").as_ref()], cx).await;
14925        let (workspace, cx) =
14926            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
14927
14928        // Seed the settings file with a plain static light theme so the
14929        // first toggle always starts from a known persisted state.
14930        workspace.update_in(cx, |_workspace, _window, cx| {
14931            *SystemAppearance::global_mut(cx) = SystemAppearance(theme::Appearance::Light);
14932            settings::update_settings_file(settings_fs.clone(), cx, |settings, _cx| {
14933                settings.theme.theme = Some(ThemeSelection::Static(ThemeName("One Light".into())));
14934            });
14935        });
14936        cx.executor().advance_clock(Duration::from_millis(200));
14937        cx.run_until_parked();
14938
14939        // Confirm the initial persisted settings contain the static theme
14940        // we just wrote before any toggling happens.
14941        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14942        assert!(settings_text.contains(r#""theme": "One Light""#));
14943
14944        // Toggle once. This should migrate the persisted theme settings
14945        // into light/dark slots and enable system mode.
14946        workspace.update_in(cx, |workspace, window, cx| {
14947            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14948        });
14949        cx.executor().advance_clock(Duration::from_millis(200));
14950        cx.run_until_parked();
14951
14952        // 1. Static -> Dynamic
14953        // this assertion checks theme changed from static to dynamic.
14954        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14955        let parsed: serde_json::Value = settings::parse_json_with_comments(&settings_text).unwrap();
14956        assert_eq!(
14957            parsed["theme"],
14958            serde_json::json!({
14959                "mode": "system",
14960                "light": "One Light",
14961                "dark": "One Dark"
14962            })
14963        );
14964
14965        // 2. Toggle again, suppose it will change the mode to light
14966        workspace.update_in(cx, |workspace, window, cx| {
14967            workspace.toggle_theme_mode(&ToggleMode, window, cx);
14968        });
14969        cx.executor().advance_clock(Duration::from_millis(200));
14970        cx.run_until_parked();
14971
14972        let settings_text = SettingsStore::load_settings(&settings_fs).await.unwrap();
14973        assert!(settings_text.contains(r#""mode": "light""#));
14974    }
14975
14976    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
14977        let item = TestProjectItem::new(id, path, cx);
14978        item.update(cx, |item, _| {
14979            item.is_dirty = true;
14980        });
14981        item
14982    }
14983
14984    #[gpui::test]
14985    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
14986        cx: &mut gpui::TestAppContext,
14987    ) {
14988        init_test(cx);
14989        let fs = FakeFs::new(cx.executor());
14990
14991        let project = Project::test(fs, [], cx).await;
14992        let (workspace, cx) =
14993            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
14994
14995        let panel = workspace.update_in(cx, |workspace, window, cx| {
14996            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
14997            workspace.add_panel(panel.clone(), window, cx);
14998            workspace
14999                .right_dock()
15000                .update(cx, |dock, cx| dock.set_open(true, window, cx));
15001            panel
15002        });
15003
15004        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
15005        pane.update_in(cx, |pane, window, cx| {
15006            let item = cx.new(TestItem::new);
15007            pane.add_item(Box::new(item), true, true, None, window, cx);
15008        });
15009
15010        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
15011        // mirrors the real-world flow and avoids side effects from directly
15012        // focusing the panel while the center pane is active.
15013        workspace.update_in(cx, |workspace, window, cx| {
15014            workspace.toggle_panel_focus::<TestPanel>(window, cx);
15015        });
15016
15017        panel.update_in(cx, |panel, window, cx| {
15018            panel.set_zoomed(true, window, cx);
15019        });
15020
15021        workspace.update_in(cx, |workspace, window, cx| {
15022            assert!(workspace.right_dock().read(cx).is_open());
15023            assert!(panel.is_zoomed(window, cx));
15024            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
15025        });
15026
15027        // Simulate a spurious pane::Event::Focus on the center pane while the
15028        // panel still has focus. This mirrors what happens during macOS window
15029        // activation: the center pane fires a focus event even though actual
15030        // focus remains on the dock panel.
15031        pane.update_in(cx, |_, _, cx| {
15032            cx.emit(pane::Event::Focus);
15033        });
15034
15035        // The dock must remain open because the panel had focus at the time the
15036        // event was processed. Before the fix, dock_to_preserve was None for
15037        // panels that don't implement pane(), causing the dock to close.
15038        workspace.update_in(cx, |workspace, window, cx| {
15039            assert!(
15040                workspace.right_dock().read(cx).is_open(),
15041                "Dock should stay open when its zoomed panel (without pane()) still has focus"
15042            );
15043            assert!(panel.is_zoomed(window, cx));
15044        });
15045    }
15046
15047    #[gpui::test]
15048    async fn test_panels_stay_open_after_position_change_and_settings_update(
15049        cx: &mut gpui::TestAppContext,
15050    ) {
15051        init_test(cx);
15052        let fs = FakeFs::new(cx.executor());
15053        let project = Project::test(fs, [], cx).await;
15054        let (workspace, cx) =
15055            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
15056
15057        // Add two panels to the left dock and open it.
15058        let (panel_a, panel_b) = workspace.update_in(cx, |workspace, window, cx| {
15059            let panel_a = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
15060            let panel_b = cx.new(|cx| TestPanel::new(DockPosition::Left, 101, cx));
15061            workspace.add_panel(panel_a.clone(), window, cx);
15062            workspace.add_panel(panel_b.clone(), window, cx);
15063            workspace.left_dock().update(cx, |dock, cx| {
15064                dock.set_open(true, window, cx);
15065                dock.activate_panel(0, window, cx);
15066            });
15067            (panel_a, panel_b)
15068        });
15069
15070        workspace.update_in(cx, |workspace, _, cx| {
15071            assert!(workspace.left_dock().read(cx).is_open());
15072        });
15073
15074        // Simulate a feature flag changing default dock positions: both panels
15075        // move from Left to Right.
15076        workspace.update_in(cx, |_workspace, _window, cx| {
15077            panel_a.update(cx, |p, _cx| p.position = DockPosition::Right);
15078            panel_b.update(cx, |p, _cx| p.position = DockPosition::Right);
15079            cx.update_global::<SettingsStore, _>(|_, _| {});
15080        });
15081
15082        // Both panels should now be in the right dock.
15083        workspace.update_in(cx, |workspace, _, cx| {
15084            let right_dock = workspace.right_dock().read(cx);
15085            assert_eq!(right_dock.panels_len(), 2);
15086        });
15087
15088        // Open the right dock and activate panel_b (simulating the user
15089        // opening the panel after it moved).
15090        workspace.update_in(cx, |workspace, window, cx| {
15091            workspace.right_dock().update(cx, |dock, cx| {
15092                dock.set_open(true, window, cx);
15093                dock.activate_panel(1, window, cx);
15094            });
15095        });
15096
15097        // Now trigger another SettingsStore change
15098        workspace.update_in(cx, |_workspace, _window, cx| {
15099            cx.update_global::<SettingsStore, _>(|_, _| {});
15100        });
15101
15102        workspace.update_in(cx, |workspace, _, cx| {
15103            assert!(
15104                workspace.right_dock().read(cx).is_open(),
15105                "Right dock should still be open after a settings change"
15106            );
15107            assert_eq!(
15108                workspace.right_dock().read(cx).panels_len(),
15109                2,
15110                "Both panels should still be in the right dock"
15111            );
15112        });
15113    }
15114}