workspace.rs

    1pub mod dock;
    2pub mod history_manager;
    3pub mod invalid_item_view;
    4pub mod item;
    5mod modal_layer;
    6mod multi_workspace;
    7pub mod notifications;
    8pub mod pane;
    9pub mod pane_group;
   10mod path_list;
   11mod persistence;
   12pub mod searchable;
   13mod security_modal;
   14pub mod shared_screen;
   15mod status_bar;
   16pub mod tasks;
   17mod theme_preview;
   18mod toast_layer;
   19mod toolbar;
   20pub mod welcome;
   21mod workspace_settings;
   22
   23pub use crate::notifications::NotificationFrame;
   24pub use dock::Panel;
   25pub use multi_workspace::{
   26    DraggedSidebar, FocusWorkspaceSidebar, MultiWorkspace, NewWorkspaceInWindow,
   27    NextWorkspaceInWindow, PreviousWorkspaceInWindow, Sidebar, SidebarEvent, SidebarHandle,
   28    ToggleWorkspaceSidebar,
   29};
   30pub use path_list::PathList;
   31pub use toast_layer::{ToastAction, ToastLayer, ToastView};
   32
   33use anyhow::{Context as _, Result, anyhow};
   34use call::{ActiveCall, call_settings::CallSettings};
   35use client::{
   36    ChannelId, Client, ErrorExt, Status, TypedEnvelope, UserStore,
   37    proto::{self, ErrorCode, PanelId, PeerId},
   38};
   39use collections::{HashMap, HashSet, hash_map};
   40use dock::{Dock, DockPosition, PanelButtons, PanelHandle, RESIZE_HANDLE_SIZE};
   41use futures::{
   42    Future, FutureExt, StreamExt,
   43    channel::{
   44        mpsc::{self, UnboundedReceiver, UnboundedSender},
   45        oneshot,
   46    },
   47    future::{Shared, try_join_all},
   48};
   49use gpui::{
   50    Action, AnyEntity, AnyView, AnyWeakView, App, AsyncApp, AsyncWindowContext, Bounds, Context,
   51    CursorStyle, Decorations, DragMoveEvent, Entity, EntityId, EventEmitter, FocusHandle,
   52    Focusable, Global, HitboxBehavior, Hsla, KeyContext, Keystroke, ManagedView, MouseButton,
   53    PathPromptOptions, Point, PromptLevel, Render, ResizeEdge, Size, Stateful, Subscription,
   54    SystemWindowTabController, Task, Tiling, WeakEntity, WindowBounds, WindowHandle, WindowId,
   55    WindowOptions, actions, canvas, point, relative, size, transparent_black,
   56};
   57pub use history_manager::*;
   58pub use item::{
   59    FollowableItem, FollowableItemHandle, Item, ItemHandle, ItemSettings, PreviewTabsSettings,
   60    ProjectItem, SerializableItem, SerializableItemHandle, WeakItemHandle,
   61};
   62use itertools::Itertools;
   63use language::{Buffer, LanguageRegistry, Rope, language_settings::all_language_settings};
   64pub use modal_layer::*;
   65use node_runtime::NodeRuntime;
   66use notifications::{
   67    DetachAndPromptErr, Notifications, dismiss_app_notification,
   68    simple_message_notification::MessageNotification,
   69};
   70pub use pane::*;
   71pub use pane_group::{
   72    ActivePaneDecorator, HANDLE_HITBOX_SIZE, Member, PaneAxis, PaneGroup, PaneRenderContext,
   73    SplitDirection,
   74};
   75use persistence::{DB, SerializedWindowBounds, model::SerializedWorkspace};
   76pub use persistence::{
   77    DB as WORKSPACE_DB, WorkspaceDb, delete_unloaded_items,
   78    model::{ItemId, SerializedMultiWorkspace, SerializedWorkspaceLocation, SessionWorkspace},
   79    read_serialized_multi_workspaces,
   80};
   81use postage::stream::Stream;
   82use project::{
   83    DirectoryLister, Project, ProjectEntryId, ProjectPath, ResolvedPath, Worktree, WorktreeId,
   84    WorktreeSettings,
   85    debugger::{breakpoint_store::BreakpointStoreEvent, session::ThreadStatus},
   86    project_settings::ProjectSettings,
   87    toolchain_store::ToolchainStoreEvent,
   88    trusted_worktrees::{RemoteHostLocation, TrustedWorktrees, TrustedWorktreesEvent},
   89};
   90use remote::{
   91    RemoteClientDelegate, RemoteConnection, RemoteConnectionOptions,
   92    remote_client::ConnectionIdentifier,
   93};
   94use schemars::JsonSchema;
   95use serde::Deserialize;
   96use session::AppSession;
   97use settings::{
   98    CenteredPaddingSettings, Settings, SettingsLocation, SettingsStore, update_settings_file,
   99};
  100use shared_screen::SharedScreen;
  101use sqlez::{
  102    bindable::{Bind, Column, StaticColumnCount},
  103    statement::Statement,
  104};
  105use status_bar::StatusBar;
  106pub use status_bar::StatusItemView;
  107use std::{
  108    any::TypeId,
  109    borrow::Cow,
  110    cell::RefCell,
  111    cmp,
  112    collections::VecDeque,
  113    env,
  114    hash::Hash,
  115    path::{Path, PathBuf},
  116    process::ExitStatus,
  117    rc::Rc,
  118    sync::{
  119        Arc, LazyLock, Weak,
  120        atomic::{AtomicBool, AtomicUsize},
  121    },
  122    time::Duration,
  123};
  124use task::{DebugScenario, SharedTaskContext, SpawnInTerminal};
  125use theme::{ActiveTheme, GlobalTheme, SystemAppearance, ThemeSettings};
  126pub use toolbar::{
  127    PaneSearchBarCallbacks, Toolbar, ToolbarItemEvent, ToolbarItemLocation, ToolbarItemView,
  128};
  129pub use ui;
  130use ui::{Window, prelude::*};
  131use util::{
  132    ResultExt, TryFutureExt,
  133    paths::{PathStyle, SanitizedPath},
  134    rel_path::RelPath,
  135    serde::default_true,
  136};
  137use uuid::Uuid;
  138pub use workspace_settings::{
  139    AutosaveSetting, BottomDockLayout, RestoreOnStartupBehavior, StatusBarSettings, TabBarSettings,
  140    WorkspaceSettings,
  141};
  142use zed_actions::{Spawn, feedback::FileBugReport};
  143
  144use crate::{item::ItemBufferKind, notifications::NotificationId};
  145use crate::{
  146    persistence::{
  147        SerializedAxis,
  148        model::{DockData, DockStructure, SerializedItem, SerializedPane, SerializedPaneGroup},
  149    },
  150    security_modal::SecurityModal,
  151};
  152
  153pub const SERIALIZATION_THROTTLE_TIME: Duration = Duration::from_millis(200);
  154
  155static ZED_WINDOW_SIZE: LazyLock<Option<Size<Pixels>>> = LazyLock::new(|| {
  156    env::var("ZED_WINDOW_SIZE")
  157        .ok()
  158        .as_deref()
  159        .and_then(parse_pixel_size_env_var)
  160});
  161
  162static ZED_WINDOW_POSITION: LazyLock<Option<Point<Pixels>>> = LazyLock::new(|| {
  163    env::var("ZED_WINDOW_POSITION")
  164        .ok()
  165        .as_deref()
  166        .and_then(parse_pixel_position_env_var)
  167});
  168
  169pub trait TerminalProvider {
  170    fn spawn(
  171        &self,
  172        task: SpawnInTerminal,
  173        window: &mut Window,
  174        cx: &mut App,
  175    ) -> Task<Option<Result<ExitStatus>>>;
  176}
  177
  178pub trait DebuggerProvider {
  179    // `active_buffer` is used to resolve build task's name against language-specific tasks.
  180    fn start_session(
  181        &self,
  182        definition: DebugScenario,
  183        task_context: SharedTaskContext,
  184        active_buffer: Option<Entity<Buffer>>,
  185        worktree_id: Option<WorktreeId>,
  186        window: &mut Window,
  187        cx: &mut App,
  188    );
  189
  190    fn spawn_task_or_modal(
  191        &self,
  192        workspace: &mut Workspace,
  193        action: &Spawn,
  194        window: &mut Window,
  195        cx: &mut Context<Workspace>,
  196    );
  197
  198    fn task_scheduled(&self, cx: &mut App);
  199    fn debug_scenario_scheduled(&self, cx: &mut App);
  200    fn debug_scenario_scheduled_last(&self, cx: &App) -> bool;
  201
  202    fn active_thread_state(&self, cx: &App) -> Option<ThreadStatus>;
  203}
  204
  205actions!(
  206    workspace,
  207    [
  208        /// Activates the next pane in the workspace.
  209        ActivateNextPane,
  210        /// Activates the previous pane in the workspace.
  211        ActivatePreviousPane,
  212        /// Switches to the next window.
  213        ActivateNextWindow,
  214        /// Switches to the previous window.
  215        ActivatePreviousWindow,
  216        /// Adds a folder to the current project.
  217        AddFolderToProject,
  218        /// Clears all notifications.
  219        ClearAllNotifications,
  220        /// Clears all navigation history, including forward/backward navigation, recently opened files, and recently closed tabs. **This action is irreversible**.
  221        ClearNavigationHistory,
  222        /// Closes the active dock.
  223        CloseActiveDock,
  224        /// Closes all docks.
  225        CloseAllDocks,
  226        /// Toggles all docks.
  227        ToggleAllDocks,
  228        /// Closes the current window.
  229        CloseWindow,
  230        /// Closes the current project.
  231        CloseProject,
  232        /// Opens the feedback dialog.
  233        Feedback,
  234        /// Follows the next collaborator in the session.
  235        FollowNextCollaborator,
  236        /// Moves the focused panel to the next position.
  237        MoveFocusedPanelToNextPosition,
  238        /// Creates a new file.
  239        NewFile,
  240        /// Creates a new file in a vertical split.
  241        NewFileSplitVertical,
  242        /// Creates a new file in a horizontal split.
  243        NewFileSplitHorizontal,
  244        /// Opens a new search.
  245        NewSearch,
  246        /// Opens a new window.
  247        NewWindow,
  248        /// Opens a file or directory.
  249        Open,
  250        /// Opens multiple files.
  251        OpenFiles,
  252        /// Opens the current location in terminal.
  253        OpenInTerminal,
  254        /// Opens the component preview.
  255        OpenComponentPreview,
  256        /// Reloads the active item.
  257        ReloadActiveItem,
  258        /// Resets the active dock to its default size.
  259        ResetActiveDockSize,
  260        /// Resets all open docks to their default sizes.
  261        ResetOpenDocksSize,
  262        /// Reloads the application
  263        Reload,
  264        /// Saves the current file with a new name.
  265        SaveAs,
  266        /// Saves without formatting.
  267        SaveWithoutFormat,
  268        /// Shuts down all debug adapters.
  269        ShutdownDebugAdapters,
  270        /// Suppresses the current notification.
  271        SuppressNotification,
  272        /// Toggles the bottom dock.
  273        ToggleBottomDock,
  274        /// Toggles centered layout mode.
  275        ToggleCenteredLayout,
  276        /// Toggles edit prediction feature globally for all files.
  277        ToggleEditPrediction,
  278        /// Toggles the left dock.
  279        ToggleLeftDock,
  280        /// Toggles the right dock.
  281        ToggleRightDock,
  282        /// Toggles zoom on the active pane.
  283        ToggleZoom,
  284        /// Toggles read-only mode for the active item (if supported by that item).
  285        ToggleReadOnlyFile,
  286        /// Zooms in on the active pane.
  287        ZoomIn,
  288        /// Zooms out of the active pane.
  289        ZoomOut,
  290        /// If any worktrees are in restricted mode, shows a modal with possible actions.
  291        /// If the modal is shown already, closes it without trusting any worktree.
  292        ToggleWorktreeSecurity,
  293        /// Clears all trusted worktrees, placing them in restricted mode on next open.
  294        /// Requires restart to take effect on already opened projects.
  295        ClearTrustedWorktrees,
  296        /// Stops following a collaborator.
  297        Unfollow,
  298        /// Restores the banner.
  299        RestoreBanner,
  300        /// Toggles expansion of the selected item.
  301        ToggleExpandItem,
  302    ]
  303);
  304
  305/// Activates a specific pane by its index.
  306#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  307#[action(namespace = workspace)]
  308pub struct ActivatePane(pub usize);
  309
  310/// Moves an item to a specific pane by index.
  311#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  312#[action(namespace = workspace)]
  313#[serde(deny_unknown_fields)]
  314pub struct MoveItemToPane {
  315    #[serde(default = "default_1")]
  316    pub destination: usize,
  317    #[serde(default = "default_true")]
  318    pub focus: bool,
  319    #[serde(default)]
  320    pub clone: bool,
  321}
  322
  323fn default_1() -> usize {
  324    1
  325}
  326
  327/// Moves an item to a pane in the specified direction.
  328#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  329#[action(namespace = workspace)]
  330#[serde(deny_unknown_fields)]
  331pub struct MoveItemToPaneInDirection {
  332    #[serde(default = "default_right")]
  333    pub direction: SplitDirection,
  334    #[serde(default = "default_true")]
  335    pub focus: bool,
  336    #[serde(default)]
  337    pub clone: bool,
  338}
  339
  340/// Creates a new file in a split of the desired direction.
  341#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  342#[action(namespace = workspace)]
  343#[serde(deny_unknown_fields)]
  344pub struct NewFileSplit(pub SplitDirection);
  345
  346fn default_right() -> SplitDirection {
  347    SplitDirection::Right
  348}
  349
  350/// Saves all open files in the workspace.
  351#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  352#[action(namespace = workspace)]
  353#[serde(deny_unknown_fields)]
  354pub struct SaveAll {
  355    #[serde(default)]
  356    pub save_intent: Option<SaveIntent>,
  357}
  358
  359/// Saves the current file with the specified options.
  360#[derive(Clone, PartialEq, Debug, Deserialize, JsonSchema, Action)]
  361#[action(namespace = workspace)]
  362#[serde(deny_unknown_fields)]
  363pub struct Save {
  364    #[serde(default)]
  365    pub save_intent: Option<SaveIntent>,
  366}
  367
  368/// Closes all items and panes in the workspace.
  369#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  370#[action(namespace = workspace)]
  371#[serde(deny_unknown_fields)]
  372pub struct CloseAllItemsAndPanes {
  373    #[serde(default)]
  374    pub save_intent: Option<SaveIntent>,
  375}
  376
  377/// Closes all inactive tabs and panes in the workspace.
  378#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  379#[action(namespace = workspace)]
  380#[serde(deny_unknown_fields)]
  381pub struct CloseInactiveTabsAndPanes {
  382    #[serde(default)]
  383    pub save_intent: Option<SaveIntent>,
  384}
  385
  386/// Closes the active item across all panes.
  387#[derive(Clone, PartialEq, Debug, Deserialize, Default, JsonSchema, Action)]
  388#[action(namespace = workspace)]
  389#[serde(deny_unknown_fields)]
  390pub struct CloseItemInAllPanes {
  391    #[serde(default)]
  392    pub save_intent: Option<SaveIntent>,
  393    #[serde(default)]
  394    pub close_pinned: bool,
  395}
  396
  397/// Sends a sequence of keystrokes to the active element.
  398#[derive(Clone, Deserialize, PartialEq, JsonSchema, Action)]
  399#[action(namespace = workspace)]
  400pub struct SendKeystrokes(pub String);
  401
  402actions!(
  403    project_symbols,
  404    [
  405        /// Toggles the project symbols search.
  406        #[action(name = "Toggle")]
  407        ToggleProjectSymbols
  408    ]
  409);
  410
  411/// Toggles the file finder interface.
  412#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  413#[action(namespace = file_finder, name = "Toggle")]
  414#[serde(deny_unknown_fields)]
  415pub struct ToggleFileFinder {
  416    #[serde(default)]
  417    pub separate_history: bool,
  418}
  419
  420/// Opens a new terminal in the center.
  421#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  422#[action(namespace = workspace)]
  423#[serde(deny_unknown_fields)]
  424pub struct NewCenterTerminal {
  425    /// If true, creates a local terminal even in remote projects.
  426    #[serde(default)]
  427    pub local: bool,
  428}
  429
  430/// Opens a new terminal.
  431#[derive(Default, PartialEq, Eq, Clone, Deserialize, JsonSchema, Action)]
  432#[action(namespace = workspace)]
  433#[serde(deny_unknown_fields)]
  434pub struct NewTerminal {
  435    /// If true, creates a local terminal even in remote projects.
  436    #[serde(default)]
  437    pub local: bool,
  438}
  439
  440/// Increases size of a currently focused dock by a given amount of pixels.
  441#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  442#[action(namespace = workspace)]
  443#[serde(deny_unknown_fields)]
  444pub struct IncreaseActiveDockSize {
  445    /// For 0px parameter, uses UI font size value.
  446    #[serde(default)]
  447    pub px: u32,
  448}
  449
  450/// Decreases size of a currently focused dock by a given amount of pixels.
  451#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  452#[action(namespace = workspace)]
  453#[serde(deny_unknown_fields)]
  454pub struct DecreaseActiveDockSize {
  455    /// For 0px parameter, uses UI font size value.
  456    #[serde(default)]
  457    pub px: u32,
  458}
  459
  460/// Increases size of all currently visible docks uniformly, by a given amount of pixels.
  461#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  462#[action(namespace = workspace)]
  463#[serde(deny_unknown_fields)]
  464pub struct IncreaseOpenDocksSize {
  465    /// For 0px parameter, uses UI font size value.
  466    #[serde(default)]
  467    pub px: u32,
  468}
  469
  470/// Decreases size of all currently visible docks uniformly, by a given amount of pixels.
  471#[derive(Clone, PartialEq, Deserialize, JsonSchema, Action)]
  472#[action(namespace = workspace)]
  473#[serde(deny_unknown_fields)]
  474pub struct DecreaseOpenDocksSize {
  475    /// For 0px parameter, uses UI font size value.
  476    #[serde(default)]
  477    pub px: u32,
  478}
  479
  480actions!(
  481    workspace,
  482    [
  483        /// Activates the pane to the left.
  484        ActivatePaneLeft,
  485        /// Activates the pane to the right.
  486        ActivatePaneRight,
  487        /// Activates the pane above.
  488        ActivatePaneUp,
  489        /// Activates the pane below.
  490        ActivatePaneDown,
  491        /// Swaps the current pane with the one to the left.
  492        SwapPaneLeft,
  493        /// Swaps the current pane with the one to the right.
  494        SwapPaneRight,
  495        /// Swaps the current pane with the one above.
  496        SwapPaneUp,
  497        /// Swaps the current pane with the one below.
  498        SwapPaneDown,
  499        // Swaps the current pane with the first available adjacent pane (searching in order: below, above, right, left) and activates that pane.
  500        SwapPaneAdjacent,
  501        /// Move the current pane to be at the far left.
  502        MovePaneLeft,
  503        /// Move the current pane to be at the far right.
  504        MovePaneRight,
  505        /// Move the current pane to be at the very top.
  506        MovePaneUp,
  507        /// Move the current pane to be at the very bottom.
  508        MovePaneDown,
  509    ]
  510);
  511
  512#[derive(PartialEq, Eq, Debug)]
  513pub enum CloseIntent {
  514    /// Quit the program entirely.
  515    Quit,
  516    /// Close a window.
  517    CloseWindow,
  518    /// Replace the workspace in an existing window.
  519    ReplaceWindow,
  520}
  521
  522#[derive(Clone)]
  523pub struct Toast {
  524    id: NotificationId,
  525    msg: Cow<'static, str>,
  526    autohide: bool,
  527    on_click: Option<(Cow<'static, str>, Arc<dyn Fn(&mut Window, &mut App)>)>,
  528}
  529
  530impl Toast {
  531    pub fn new<I: Into<Cow<'static, str>>>(id: NotificationId, msg: I) -> Self {
  532        Toast {
  533            id,
  534            msg: msg.into(),
  535            on_click: None,
  536            autohide: false,
  537        }
  538    }
  539
  540    pub fn on_click<F, M>(mut self, message: M, on_click: F) -> Self
  541    where
  542        M: Into<Cow<'static, str>>,
  543        F: Fn(&mut Window, &mut App) + 'static,
  544    {
  545        self.on_click = Some((message.into(), Arc::new(on_click)));
  546        self
  547    }
  548
  549    pub fn autohide(mut self) -> Self {
  550        self.autohide = true;
  551        self
  552    }
  553}
  554
  555impl PartialEq for Toast {
  556    fn eq(&self, other: &Self) -> bool {
  557        self.id == other.id
  558            && self.msg == other.msg
  559            && self.on_click.is_some() == other.on_click.is_some()
  560    }
  561}
  562
  563/// Opens a new terminal with the specified working directory.
  564#[derive(Debug, Default, Clone, Deserialize, PartialEq, JsonSchema, Action)]
  565#[action(namespace = workspace)]
  566#[serde(deny_unknown_fields)]
  567pub struct OpenTerminal {
  568    pub working_directory: PathBuf,
  569    /// If true, creates a local terminal even in remote projects.
  570    #[serde(default)]
  571    pub local: bool,
  572}
  573
  574#[derive(
  575    Clone,
  576    Copy,
  577    Debug,
  578    Default,
  579    Hash,
  580    PartialEq,
  581    Eq,
  582    PartialOrd,
  583    Ord,
  584    serde::Serialize,
  585    serde::Deserialize,
  586)]
  587pub struct WorkspaceId(i64);
  588
  589impl WorkspaceId {
  590    pub fn from_i64(value: i64) -> Self {
  591        Self(value)
  592    }
  593}
  594
  595impl StaticColumnCount for WorkspaceId {}
  596impl Bind for WorkspaceId {
  597    fn bind(&self, statement: &Statement, start_index: i32) -> Result<i32> {
  598        self.0.bind(statement, start_index)
  599    }
  600}
  601impl Column for WorkspaceId {
  602    fn column(statement: &mut Statement, start_index: i32) -> Result<(Self, i32)> {
  603        i64::column(statement, start_index)
  604            .map(|(i, next_index)| (Self(i), next_index))
  605            .with_context(|| format!("Failed to read WorkspaceId at index {start_index}"))
  606    }
  607}
  608impl From<WorkspaceId> for i64 {
  609    fn from(val: WorkspaceId) -> Self {
  610        val.0
  611    }
  612}
  613
  614fn prompt_and_open_paths(app_state: Arc<AppState>, options: PathPromptOptions, cx: &mut App) {
  615    let paths = cx.prompt_for_paths(options);
  616    cx.spawn(
  617        async move |cx| match paths.await.anyhow().and_then(|res| res) {
  618            Ok(Some(paths)) => {
  619                cx.update(|cx| {
  620                    open_paths(&paths, app_state, OpenOptions::default(), cx).detach_and_log_err(cx)
  621                });
  622            }
  623            Ok(None) => {}
  624            Err(err) => {
  625                util::log_err(&err);
  626                cx.update(|cx| {
  627                    if let Some(workspace_window) = cx
  628                        .active_window()
  629                        .and_then(|window| window.downcast::<MultiWorkspace>())
  630                    {
  631                        workspace_window
  632                            .update(cx, |multi_workspace, _, cx| {
  633                                let workspace = multi_workspace.workspace().clone();
  634                                workspace.update(cx, |workspace, cx| {
  635                                    workspace.show_portal_error(err.to_string(), cx);
  636                                });
  637                            })
  638                            .ok();
  639                    }
  640                });
  641            }
  642        },
  643    )
  644    .detach();
  645}
  646
  647pub fn init(app_state: Arc<AppState>, cx: &mut App) {
  648    component::init();
  649    theme_preview::init(cx);
  650    toast_layer::init(cx);
  651    history_manager::init(app_state.fs.clone(), cx);
  652
  653    cx.on_action(|_: &CloseWindow, cx| Workspace::close_global(cx))
  654        .on_action(|_: &Reload, cx| reload(cx))
  655        .on_action({
  656            let app_state = Arc::downgrade(&app_state);
  657            move |_: &Open, cx: &mut App| {
  658                if let Some(app_state) = app_state.upgrade() {
  659                    prompt_and_open_paths(
  660                        app_state,
  661                        PathPromptOptions {
  662                            files: true,
  663                            directories: true,
  664                            multiple: true,
  665                            prompt: None,
  666                        },
  667                        cx,
  668                    );
  669                }
  670            }
  671        })
  672        .on_action({
  673            let app_state = Arc::downgrade(&app_state);
  674            move |_: &OpenFiles, cx: &mut App| {
  675                let directories = cx.can_select_mixed_files_and_dirs();
  676                if let Some(app_state) = app_state.upgrade() {
  677                    prompt_and_open_paths(
  678                        app_state,
  679                        PathPromptOptions {
  680                            files: true,
  681                            directories,
  682                            multiple: true,
  683                            prompt: None,
  684                        },
  685                        cx,
  686                    );
  687                }
  688            }
  689        });
  690}
  691
  692type BuildProjectItemFn =
  693    fn(AnyEntity, Entity<Project>, Option<&Pane>, &mut Window, &mut App) -> Box<dyn ItemHandle>;
  694
  695type BuildProjectItemForPathFn =
  696    fn(
  697        &Entity<Project>,
  698        &ProjectPath,
  699        &mut Window,
  700        &mut App,
  701    ) -> Option<Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>>>;
  702
  703#[derive(Clone, Default)]
  704struct ProjectItemRegistry {
  705    build_project_item_fns_by_type: HashMap<TypeId, BuildProjectItemFn>,
  706    build_project_item_for_path_fns: Vec<BuildProjectItemForPathFn>,
  707}
  708
  709impl ProjectItemRegistry {
  710    fn register<T: ProjectItem>(&mut self) {
  711        self.build_project_item_fns_by_type.insert(
  712            TypeId::of::<T::Item>(),
  713            |item, project, pane, window, cx| {
  714                let item = item.downcast().unwrap();
  715                Box::new(cx.new(|cx| T::for_project_item(project, pane, item, window, cx)))
  716                    as Box<dyn ItemHandle>
  717            },
  718        );
  719        self.build_project_item_for_path_fns
  720            .push(|project, project_path, window, cx| {
  721                let project_path = project_path.clone();
  722                let is_file = project
  723                    .read(cx)
  724                    .entry_for_path(&project_path, cx)
  725                    .is_some_and(|entry| entry.is_file());
  726                let entry_abs_path = project.read(cx).absolute_path(&project_path, cx);
  727                let is_local = project.read(cx).is_local();
  728                let project_item =
  729                    <T::Item as project::ProjectItem>::try_open(project, &project_path, cx)?;
  730                let project = project.clone();
  731                Some(window.spawn(cx, async move |cx| {
  732                    match project_item.await.with_context(|| {
  733                        format!(
  734                            "opening project path {:?}",
  735                            entry_abs_path.as_deref().unwrap_or(&project_path.path.as_std_path())
  736                        )
  737                    }) {
  738                        Ok(project_item) => {
  739                            let project_item = project_item;
  740                            let project_entry_id: Option<ProjectEntryId> =
  741                                project_item.read_with(cx, project::ProjectItem::entry_id);
  742                            let build_workspace_item = Box::new(
  743                                |pane: &mut Pane, window: &mut Window, cx: &mut Context<Pane>| {
  744                                    Box::new(cx.new(|cx| {
  745                                        T::for_project_item(
  746                                            project,
  747                                            Some(pane),
  748                                            project_item,
  749                                            window,
  750                                            cx,
  751                                        )
  752                                    })) as Box<dyn ItemHandle>
  753                                },
  754                            ) as Box<_>;
  755                            Ok((project_entry_id, build_workspace_item))
  756                        }
  757                        Err(e) => {
  758                            log::warn!("Failed to open a project item: {e:#}");
  759                            if e.error_code() == ErrorCode::Internal {
  760                                if let Some(abs_path) =
  761                                    entry_abs_path.as_deref().filter(|_| is_file)
  762                                {
  763                                    if let Some(broken_project_item_view) =
  764                                        cx.update(|window, cx| {
  765                                            T::for_broken_project_item(
  766                                                abs_path, is_local, &e, window, cx,
  767                                            )
  768                                        })?
  769                                    {
  770                                        let build_workspace_item = Box::new(
  771                                            move |_: &mut Pane, _: &mut Window, cx: &mut Context<Pane>| {
  772                                                cx.new(|_| broken_project_item_view).boxed_clone()
  773                                            },
  774                                        )
  775                                        as Box<_>;
  776                                        return Ok((None, build_workspace_item));
  777                                    }
  778                                }
  779                            }
  780                            Err(e)
  781                        }
  782                    }
  783                }))
  784            });
  785    }
  786
  787    fn open_path(
  788        &self,
  789        project: &Entity<Project>,
  790        path: &ProjectPath,
  791        window: &mut Window,
  792        cx: &mut App,
  793    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
  794        let Some(open_project_item) = self
  795            .build_project_item_for_path_fns
  796            .iter()
  797            .rev()
  798            .find_map(|open_project_item| open_project_item(project, path, window, cx))
  799        else {
  800            return Task::ready(Err(anyhow!("cannot open file {:?}", path.path)));
  801        };
  802        open_project_item
  803    }
  804
  805    fn build_item<T: project::ProjectItem>(
  806        &self,
  807        item: Entity<T>,
  808        project: Entity<Project>,
  809        pane: Option<&Pane>,
  810        window: &mut Window,
  811        cx: &mut App,
  812    ) -> Option<Box<dyn ItemHandle>> {
  813        let build = self
  814            .build_project_item_fns_by_type
  815            .get(&TypeId::of::<T>())?;
  816        Some(build(item.into_any(), project, pane, window, cx))
  817    }
  818}
  819
  820type WorkspaceItemBuilder =
  821    Box<dyn FnOnce(&mut Pane, &mut Window, &mut Context<Pane>) -> Box<dyn ItemHandle>>;
  822
  823impl Global for ProjectItemRegistry {}
  824
  825/// Registers a [ProjectItem] for the app. When opening a file, all the registered
  826/// items will get a chance to open the file, starting from the project item that
  827/// was added last.
  828pub fn register_project_item<I: ProjectItem>(cx: &mut App) {
  829    cx.default_global::<ProjectItemRegistry>().register::<I>();
  830}
  831
  832#[derive(Default)]
  833pub struct FollowableViewRegistry(HashMap<TypeId, FollowableViewDescriptor>);
  834
  835struct FollowableViewDescriptor {
  836    from_state_proto: fn(
  837        Entity<Workspace>,
  838        ViewId,
  839        &mut Option<proto::view::Variant>,
  840        &mut Window,
  841        &mut App,
  842    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>>,
  843    to_followable_view: fn(&AnyView) -> Box<dyn FollowableItemHandle>,
  844}
  845
  846impl Global for FollowableViewRegistry {}
  847
  848impl FollowableViewRegistry {
  849    pub fn register<I: FollowableItem>(cx: &mut App) {
  850        cx.default_global::<Self>().0.insert(
  851            TypeId::of::<I>(),
  852            FollowableViewDescriptor {
  853                from_state_proto: |workspace, id, state, window, cx| {
  854                    I::from_state_proto(workspace, id, state, window, cx).map(|task| {
  855                        cx.foreground_executor()
  856                            .spawn(async move { Ok(Box::new(task.await?) as Box<_>) })
  857                    })
  858                },
  859                to_followable_view: |view| Box::new(view.clone().downcast::<I>().unwrap()),
  860            },
  861        );
  862    }
  863
  864    pub fn from_state_proto(
  865        workspace: Entity<Workspace>,
  866        view_id: ViewId,
  867        mut state: Option<proto::view::Variant>,
  868        window: &mut Window,
  869        cx: &mut App,
  870    ) -> Option<Task<Result<Box<dyn FollowableItemHandle>>>> {
  871        cx.update_default_global(|this: &mut Self, cx| {
  872            this.0.values().find_map(|descriptor| {
  873                (descriptor.from_state_proto)(workspace.clone(), view_id, &mut state, window, cx)
  874            })
  875        })
  876    }
  877
  878    pub fn to_followable_view(
  879        view: impl Into<AnyView>,
  880        cx: &App,
  881    ) -> Option<Box<dyn FollowableItemHandle>> {
  882        let this = cx.try_global::<Self>()?;
  883        let view = view.into();
  884        let descriptor = this.0.get(&view.entity_type())?;
  885        Some((descriptor.to_followable_view)(&view))
  886    }
  887}
  888
  889#[derive(Copy, Clone)]
  890struct SerializableItemDescriptor {
  891    deserialize: fn(
  892        Entity<Project>,
  893        WeakEntity<Workspace>,
  894        WorkspaceId,
  895        ItemId,
  896        &mut Window,
  897        &mut Context<Pane>,
  898    ) -> Task<Result<Box<dyn ItemHandle>>>,
  899    cleanup: fn(WorkspaceId, Vec<ItemId>, &mut Window, &mut App) -> Task<Result<()>>,
  900    view_to_serializable_item: fn(AnyView) -> Box<dyn SerializableItemHandle>,
  901}
  902
  903#[derive(Default)]
  904struct SerializableItemRegistry {
  905    descriptors_by_kind: HashMap<Arc<str>, SerializableItemDescriptor>,
  906    descriptors_by_type: HashMap<TypeId, SerializableItemDescriptor>,
  907}
  908
  909impl Global for SerializableItemRegistry {}
  910
  911impl SerializableItemRegistry {
  912    fn deserialize(
  913        item_kind: &str,
  914        project: Entity<Project>,
  915        workspace: WeakEntity<Workspace>,
  916        workspace_id: WorkspaceId,
  917        item_item: ItemId,
  918        window: &mut Window,
  919        cx: &mut Context<Pane>,
  920    ) -> Task<Result<Box<dyn ItemHandle>>> {
  921        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  922            return Task::ready(Err(anyhow!(
  923                "cannot deserialize {}, descriptor not found",
  924                item_kind
  925            )));
  926        };
  927
  928        (descriptor.deserialize)(project, workspace, workspace_id, item_item, window, cx)
  929    }
  930
  931    fn cleanup(
  932        item_kind: &str,
  933        workspace_id: WorkspaceId,
  934        loaded_items: Vec<ItemId>,
  935        window: &mut Window,
  936        cx: &mut App,
  937    ) -> Task<Result<()>> {
  938        let Some(descriptor) = Self::descriptor(item_kind, cx) else {
  939            return Task::ready(Err(anyhow!(
  940                "cannot cleanup {}, descriptor not found",
  941                item_kind
  942            )));
  943        };
  944
  945        (descriptor.cleanup)(workspace_id, loaded_items, window, cx)
  946    }
  947
  948    fn view_to_serializable_item_handle(
  949        view: AnyView,
  950        cx: &App,
  951    ) -> Option<Box<dyn SerializableItemHandle>> {
  952        let this = cx.try_global::<Self>()?;
  953        let descriptor = this.descriptors_by_type.get(&view.entity_type())?;
  954        Some((descriptor.view_to_serializable_item)(view))
  955    }
  956
  957    fn descriptor(item_kind: &str, cx: &App) -> Option<SerializableItemDescriptor> {
  958        let this = cx.try_global::<Self>()?;
  959        this.descriptors_by_kind.get(item_kind).copied()
  960    }
  961}
  962
  963pub fn register_serializable_item<I: SerializableItem>(cx: &mut App) {
  964    let serialized_item_kind = I::serialized_item_kind();
  965
  966    let registry = cx.default_global::<SerializableItemRegistry>();
  967    let descriptor = SerializableItemDescriptor {
  968        deserialize: |project, workspace, workspace_id, item_id, window, cx| {
  969            let task = I::deserialize(project, workspace, workspace_id, item_id, window, cx);
  970            cx.foreground_executor()
  971                .spawn(async { Ok(Box::new(task.await?) as Box<_>) })
  972        },
  973        cleanup: |workspace_id, loaded_items, window, cx| {
  974            I::cleanup(workspace_id, loaded_items, window, cx)
  975        },
  976        view_to_serializable_item: |view| Box::new(view.downcast::<I>().unwrap()),
  977    };
  978    registry
  979        .descriptors_by_kind
  980        .insert(Arc::from(serialized_item_kind), descriptor);
  981    registry
  982        .descriptors_by_type
  983        .insert(TypeId::of::<I>(), descriptor);
  984}
  985
  986pub struct AppState {
  987    pub languages: Arc<LanguageRegistry>,
  988    pub client: Arc<Client>,
  989    pub user_store: Entity<UserStore>,
  990    pub workspace_store: Entity<WorkspaceStore>,
  991    pub fs: Arc<dyn fs::Fs>,
  992    pub build_window_options: fn(Option<Uuid>, &mut App) -> WindowOptions,
  993    pub node_runtime: NodeRuntime,
  994    pub session: Entity<AppSession>,
  995}
  996
  997struct GlobalAppState(Weak<AppState>);
  998
  999impl Global for GlobalAppState {}
 1000
 1001pub struct WorkspaceStore {
 1002    workspaces: HashSet<(gpui::AnyWindowHandle, WeakEntity<Workspace>)>,
 1003    client: Arc<Client>,
 1004    _subscriptions: Vec<client::Subscription>,
 1005}
 1006
 1007#[derive(Copy, Clone, Debug, Hash, Eq, PartialEq, PartialOrd, Ord)]
 1008pub enum CollaboratorId {
 1009    PeerId(PeerId),
 1010    Agent,
 1011}
 1012
 1013impl From<PeerId> for CollaboratorId {
 1014    fn from(peer_id: PeerId) -> Self {
 1015        CollaboratorId::PeerId(peer_id)
 1016    }
 1017}
 1018
 1019impl From<&PeerId> for CollaboratorId {
 1020    fn from(peer_id: &PeerId) -> Self {
 1021        CollaboratorId::PeerId(*peer_id)
 1022    }
 1023}
 1024
 1025#[derive(PartialEq, Eq, PartialOrd, Ord, Debug)]
 1026struct Follower {
 1027    project_id: Option<u64>,
 1028    peer_id: PeerId,
 1029}
 1030
 1031impl AppState {
 1032    #[track_caller]
 1033    pub fn global(cx: &App) -> Weak<Self> {
 1034        cx.global::<GlobalAppState>().0.clone()
 1035    }
 1036    pub fn try_global(cx: &App) -> Option<Weak<Self>> {
 1037        cx.try_global::<GlobalAppState>()
 1038            .map(|state| state.0.clone())
 1039    }
 1040    pub fn set_global(state: Weak<AppState>, cx: &mut App) {
 1041        cx.set_global(GlobalAppState(state));
 1042    }
 1043
 1044    #[cfg(any(test, feature = "test-support"))]
 1045    pub fn test(cx: &mut App) -> Arc<Self> {
 1046        use fs::Fs;
 1047        use node_runtime::NodeRuntime;
 1048        use session::Session;
 1049        use settings::SettingsStore;
 1050
 1051        if !cx.has_global::<SettingsStore>() {
 1052            let settings_store = SettingsStore::test(cx);
 1053            cx.set_global(settings_store);
 1054        }
 1055
 1056        let fs = fs::FakeFs::new(cx.background_executor().clone());
 1057        <dyn Fs>::set_global(fs.clone(), cx);
 1058        let languages = Arc::new(LanguageRegistry::test(cx.background_executor().clone()));
 1059        let clock = Arc::new(clock::FakeSystemClock::new());
 1060        let http_client = http_client::FakeHttpClient::with_404_response();
 1061        let client = Client::new(clock, http_client, cx);
 1062        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 1063        let user_store = cx.new(|cx| UserStore::new(client.clone(), cx));
 1064        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 1065
 1066        theme::init(theme::LoadThemes::JustBase, cx);
 1067        client::init(&client, cx);
 1068
 1069        Arc::new(Self {
 1070            client,
 1071            fs,
 1072            languages,
 1073            user_store,
 1074            workspace_store,
 1075            node_runtime: NodeRuntime::unavailable(),
 1076            build_window_options: |_, _| Default::default(),
 1077            session,
 1078        })
 1079    }
 1080}
 1081
 1082struct DelayedDebouncedEditAction {
 1083    task: Option<Task<()>>,
 1084    cancel_channel: Option<oneshot::Sender<()>>,
 1085}
 1086
 1087impl DelayedDebouncedEditAction {
 1088    fn new() -> DelayedDebouncedEditAction {
 1089        DelayedDebouncedEditAction {
 1090            task: None,
 1091            cancel_channel: None,
 1092        }
 1093    }
 1094
 1095    fn fire_new<F>(
 1096        &mut self,
 1097        delay: Duration,
 1098        window: &mut Window,
 1099        cx: &mut Context<Workspace>,
 1100        func: F,
 1101    ) where
 1102        F: 'static
 1103            + Send
 1104            + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> Task<Result<()>>,
 1105    {
 1106        if let Some(channel) = self.cancel_channel.take() {
 1107            _ = channel.send(());
 1108        }
 1109
 1110        let (sender, mut receiver) = oneshot::channel::<()>();
 1111        self.cancel_channel = Some(sender);
 1112
 1113        let previous_task = self.task.take();
 1114        self.task = Some(cx.spawn_in(window, async move |workspace, cx| {
 1115            let mut timer = cx.background_executor().timer(delay).fuse();
 1116            if let Some(previous_task) = previous_task {
 1117                previous_task.await;
 1118            }
 1119
 1120            futures::select_biased! {
 1121                _ = receiver => return,
 1122                    _ = timer => {}
 1123            }
 1124
 1125            if let Some(result) = workspace
 1126                .update_in(cx, |workspace, window, cx| (func)(workspace, window, cx))
 1127                .log_err()
 1128            {
 1129                result.await.log_err();
 1130            }
 1131        }));
 1132    }
 1133}
 1134
 1135pub enum Event {
 1136    PaneAdded(Entity<Pane>),
 1137    PaneRemoved,
 1138    ItemAdded {
 1139        item: Box<dyn ItemHandle>,
 1140    },
 1141    ActiveItemChanged,
 1142    ItemRemoved {
 1143        item_id: EntityId,
 1144    },
 1145    UserSavedItem {
 1146        pane: WeakEntity<Pane>,
 1147        item: Box<dyn WeakItemHandle>,
 1148        save_intent: SaveIntent,
 1149    },
 1150    ContactRequestedJoin(u64),
 1151    WorkspaceCreated(WeakEntity<Workspace>),
 1152    OpenBundledFile {
 1153        text: Cow<'static, str>,
 1154        title: &'static str,
 1155        language: &'static str,
 1156    },
 1157    ZoomChanged,
 1158    ModalOpened,
 1159}
 1160
 1161#[derive(Debug, Clone)]
 1162pub enum OpenVisible {
 1163    All,
 1164    None,
 1165    OnlyFiles,
 1166    OnlyDirectories,
 1167}
 1168
 1169enum WorkspaceLocation {
 1170    // Valid local paths or SSH project to serialize
 1171    Location(SerializedWorkspaceLocation, PathList),
 1172    // No valid location found hence clear session id
 1173    DetachFromSession,
 1174    // No valid location found to serialize
 1175    None,
 1176}
 1177
 1178type PromptForNewPath = Box<
 1179    dyn Fn(
 1180        &mut Workspace,
 1181        DirectoryLister,
 1182        Option<String>,
 1183        &mut Window,
 1184        &mut Context<Workspace>,
 1185    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1186>;
 1187
 1188type PromptForOpenPath = Box<
 1189    dyn Fn(
 1190        &mut Workspace,
 1191        DirectoryLister,
 1192        &mut Window,
 1193        &mut Context<Workspace>,
 1194    ) -> oneshot::Receiver<Option<Vec<PathBuf>>>,
 1195>;
 1196
 1197#[derive(Default)]
 1198struct DispatchingKeystrokes {
 1199    dispatched: HashSet<Vec<Keystroke>>,
 1200    queue: VecDeque<Keystroke>,
 1201    task: Option<Shared<Task<()>>>,
 1202}
 1203
 1204/// Collects everything project-related for a certain window opened.
 1205/// In some way, is a counterpart of a window, as the [`WindowHandle`] could be downcast into `Workspace`.
 1206///
 1207/// A `Workspace` usually consists of 1 or more projects, a central pane group, 3 docks and a status bar.
 1208/// The `Workspace` owns everybody's state and serves as a default, "global context",
 1209/// that can be used to register a global action to be triggered from any place in the window.
 1210pub struct Workspace {
 1211    weak_self: WeakEntity<Self>,
 1212    workspace_actions: Vec<Box<dyn Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div>>,
 1213    zoomed: Option<AnyWeakView>,
 1214    previous_dock_drag_coordinates: Option<Point<Pixels>>,
 1215    zoomed_position: Option<DockPosition>,
 1216    center: PaneGroup,
 1217    left_dock: Entity<Dock>,
 1218    bottom_dock: Entity<Dock>,
 1219    right_dock: Entity<Dock>,
 1220    panes: Vec<Entity<Pane>>,
 1221    active_worktree_override: Option<WorktreeId>,
 1222    panes_by_item: HashMap<EntityId, WeakEntity<Pane>>,
 1223    active_pane: Entity<Pane>,
 1224    last_active_center_pane: Option<WeakEntity<Pane>>,
 1225    last_active_view_id: Option<proto::ViewId>,
 1226    status_bar: Entity<StatusBar>,
 1227    modal_layer: Entity<ModalLayer>,
 1228    toast_layer: Entity<ToastLayer>,
 1229    titlebar_item: Option<AnyView>,
 1230    notifications: Notifications,
 1231    suppressed_notifications: HashSet<NotificationId>,
 1232    project: Entity<Project>,
 1233    follower_states: HashMap<CollaboratorId, FollowerState>,
 1234    last_leaders_by_pane: HashMap<WeakEntity<Pane>, CollaboratorId>,
 1235    window_edited: bool,
 1236    last_window_title: Option<String>,
 1237    dirty_items: HashMap<EntityId, Subscription>,
 1238    active_call: Option<(Entity<ActiveCall>, Vec<Subscription>)>,
 1239    leader_updates_tx: mpsc::UnboundedSender<(PeerId, proto::UpdateFollowers)>,
 1240    database_id: Option<WorkspaceId>,
 1241    app_state: Arc<AppState>,
 1242    dispatching_keystrokes: Rc<RefCell<DispatchingKeystrokes>>,
 1243    _subscriptions: Vec<Subscription>,
 1244    _apply_leader_updates: Task<Result<()>>,
 1245    _observe_current_user: Task<Result<()>>,
 1246    _schedule_serialize_workspace: Option<Task<()>>,
 1247    _serialize_workspace_task: Option<Task<()>>,
 1248    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1249    pane_history_timestamp: Arc<AtomicUsize>,
 1250    bounds: Bounds<Pixels>,
 1251    pub centered_layout: bool,
 1252    bounds_save_task_queued: Option<Task<()>>,
 1253    on_prompt_for_new_path: Option<PromptForNewPath>,
 1254    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1255    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1256    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1257    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1258    _items_serializer: Task<Result<()>>,
 1259    session_id: Option<String>,
 1260    scheduled_tasks: Vec<Task<()>>,
 1261    last_open_dock_positions: Vec<DockPosition>,
 1262    removing: bool,
 1263}
 1264
 1265impl EventEmitter<Event> for Workspace {}
 1266
 1267#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1268pub struct ViewId {
 1269    pub creator: CollaboratorId,
 1270    pub id: u64,
 1271}
 1272
 1273pub struct FollowerState {
 1274    center_pane: Entity<Pane>,
 1275    dock_pane: Option<Entity<Pane>>,
 1276    active_view_id: Option<ViewId>,
 1277    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1278}
 1279
 1280struct FollowerView {
 1281    view: Box<dyn FollowableItemHandle>,
 1282    location: Option<proto::PanelId>,
 1283}
 1284
 1285impl Workspace {
 1286    pub fn new(
 1287        workspace_id: Option<WorkspaceId>,
 1288        project: Entity<Project>,
 1289        app_state: Arc<AppState>,
 1290        window: &mut Window,
 1291        cx: &mut Context<Self>,
 1292    ) -> Self {
 1293        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1294            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1295                if let TrustedWorktreesEvent::Trusted(..) = e {
 1296                    // Do not persist auto trusted worktrees
 1297                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1298                        worktrees_store.update(cx, |worktrees_store, cx| {
 1299                            worktrees_store.schedule_serialization(
 1300                                cx,
 1301                                |new_trusted_worktrees, cx| {
 1302                                    let timeout =
 1303                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1304                                    cx.background_spawn(async move {
 1305                                        timeout.await;
 1306                                        persistence::DB
 1307                                            .save_trusted_worktrees(new_trusted_worktrees)
 1308                                            .await
 1309                                            .log_err();
 1310                                    })
 1311                                },
 1312                            )
 1313                        });
 1314                    }
 1315                }
 1316            })
 1317            .detach();
 1318
 1319            cx.observe_global::<SettingsStore>(|_, cx| {
 1320                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1321                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1322                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1323                            trusted_worktrees.auto_trust_all(cx);
 1324                        })
 1325                    }
 1326                }
 1327            })
 1328            .detach();
 1329        }
 1330
 1331        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1332            match event {
 1333                project::Event::RemoteIdChanged(_) => {
 1334                    this.update_window_title(window, cx);
 1335                }
 1336
 1337                project::Event::CollaboratorLeft(peer_id) => {
 1338                    this.collaborator_left(*peer_id, window, cx);
 1339                }
 1340
 1341                &project::Event::WorktreeRemoved(id) | &project::Event::WorktreeAdded(id) => {
 1342                    this.update_window_title(window, cx);
 1343                    if this
 1344                        .project()
 1345                        .read(cx)
 1346                        .worktree_for_id(id, cx)
 1347                        .is_some_and(|wt| wt.read(cx).is_visible())
 1348                    {
 1349                        this.serialize_workspace(window, cx);
 1350                        this.update_history(cx);
 1351                    }
 1352                }
 1353                project::Event::WorktreeUpdatedEntries(..) => {
 1354                    this.update_window_title(window, cx);
 1355                    this.serialize_workspace(window, cx);
 1356                }
 1357
 1358                project::Event::DisconnectedFromHost => {
 1359                    this.update_window_edited(window, cx);
 1360                    let leaders_to_unfollow =
 1361                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1362                    for leader_id in leaders_to_unfollow {
 1363                        this.unfollow(leader_id, window, cx);
 1364                    }
 1365                }
 1366
 1367                project::Event::DisconnectedFromRemote {
 1368                    server_not_running: _,
 1369                } => {
 1370                    this.update_window_edited(window, cx);
 1371                }
 1372
 1373                project::Event::Closed => {
 1374                    window.remove_window();
 1375                }
 1376
 1377                project::Event::DeletedEntry(_, entry_id) => {
 1378                    for pane in this.panes.iter() {
 1379                        pane.update(cx, |pane, cx| {
 1380                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1381                        });
 1382                    }
 1383                }
 1384
 1385                project::Event::Toast {
 1386                    notification_id,
 1387                    message,
 1388                    link,
 1389                } => this.show_notification(
 1390                    NotificationId::named(notification_id.clone()),
 1391                    cx,
 1392                    |cx| {
 1393                        let mut notification = MessageNotification::new(message.clone(), cx);
 1394                        if let Some(link) = link {
 1395                            notification = notification
 1396                                .more_info_message(link.label)
 1397                                .more_info_url(link.url);
 1398                        }
 1399
 1400                        cx.new(|_| notification)
 1401                    },
 1402                ),
 1403
 1404                project::Event::HideToast { notification_id } => {
 1405                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1406                }
 1407
 1408                project::Event::LanguageServerPrompt(request) => {
 1409                    struct LanguageServerPrompt;
 1410
 1411                    this.show_notification(
 1412                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1413                        cx,
 1414                        |cx| {
 1415                            cx.new(|cx| {
 1416                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1417                            })
 1418                        },
 1419                    );
 1420                }
 1421
 1422                project::Event::AgentLocationChanged => {
 1423                    this.handle_agent_location_changed(window, cx)
 1424                }
 1425
 1426                _ => {}
 1427            }
 1428            cx.notify()
 1429        })
 1430        .detach();
 1431
 1432        cx.subscribe_in(
 1433            &project.read(cx).breakpoint_store(),
 1434            window,
 1435            |workspace, _, event, window, cx| match event {
 1436                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1437                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1438                    workspace.serialize_workspace(window, cx);
 1439                }
 1440                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1441            },
 1442        )
 1443        .detach();
 1444        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1445            cx.subscribe_in(
 1446                &toolchain_store,
 1447                window,
 1448                |workspace, _, event, window, cx| match event {
 1449                    ToolchainStoreEvent::CustomToolchainsModified => {
 1450                        workspace.serialize_workspace(window, cx);
 1451                    }
 1452                    _ => {}
 1453                },
 1454            )
 1455            .detach();
 1456        }
 1457
 1458        cx.on_focus_lost(window, |this, window, cx| {
 1459            let focus_handle = this.focus_handle(cx);
 1460            window.focus(&focus_handle, cx);
 1461        })
 1462        .detach();
 1463
 1464        let weak_handle = cx.entity().downgrade();
 1465        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1466
 1467        let center_pane = cx.new(|cx| {
 1468            let mut center_pane = Pane::new(
 1469                weak_handle.clone(),
 1470                project.clone(),
 1471                pane_history_timestamp.clone(),
 1472                None,
 1473                NewFile.boxed_clone(),
 1474                true,
 1475                window,
 1476                cx,
 1477            );
 1478            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1479            center_pane.set_should_display_welcome_page(true);
 1480            center_pane
 1481        });
 1482        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1483            .detach();
 1484
 1485        window.focus(&center_pane.focus_handle(cx), cx);
 1486
 1487        cx.emit(Event::PaneAdded(center_pane.clone()));
 1488
 1489        let any_window_handle = window.window_handle();
 1490        app_state.workspace_store.update(cx, |store, _| {
 1491            store
 1492                .workspaces
 1493                .insert((any_window_handle, weak_handle.clone()));
 1494        });
 1495
 1496        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1497        let mut connection_status = app_state.client.status();
 1498        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1499            current_user.next().await;
 1500            connection_status.next().await;
 1501            let mut stream =
 1502                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1503
 1504            while stream.recv().await.is_some() {
 1505                this.update(cx, |_, cx| cx.notify())?;
 1506            }
 1507            anyhow::Ok(())
 1508        });
 1509
 1510        // All leader updates are enqueued and then processed in a single task, so
 1511        // that each asynchronous operation can be run in order.
 1512        let (leader_updates_tx, mut leader_updates_rx) =
 1513            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1514        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1515            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1516                Self::process_leader_update(&this, leader_id, update, cx)
 1517                    .await
 1518                    .log_err();
 1519            }
 1520
 1521            Ok(())
 1522        });
 1523
 1524        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1525        let modal_layer = cx.new(|_| ModalLayer::new());
 1526        let toast_layer = cx.new(|_| ToastLayer::new());
 1527        cx.subscribe(
 1528            &modal_layer,
 1529            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1530                cx.emit(Event::ModalOpened);
 1531            },
 1532        )
 1533        .detach();
 1534
 1535        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1536        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1537        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1538        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1539        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1540        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1541        let status_bar = cx.new(|cx| {
 1542            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1543            status_bar.add_left_item(left_dock_buttons, window, cx);
 1544            status_bar.add_right_item(right_dock_buttons, window, cx);
 1545            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1546            status_bar
 1547        });
 1548
 1549        let session_id = app_state.session.read(cx).id().to_owned();
 1550
 1551        let mut active_call = None;
 1552        if let Some(call) = ActiveCall::try_global(cx) {
 1553            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1554            active_call = Some((call, subscriptions));
 1555        }
 1556
 1557        let (serializable_items_tx, serializable_items_rx) =
 1558            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1559        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1560            Self::serialize_items(&this, serializable_items_rx, cx).await
 1561        });
 1562
 1563        let subscriptions = vec![
 1564            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1565            cx.observe_window_bounds(window, move |this, window, cx| {
 1566                if this.bounds_save_task_queued.is_some() {
 1567                    return;
 1568                }
 1569                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1570                    cx.background_executor()
 1571                        .timer(Duration::from_millis(100))
 1572                        .await;
 1573                    this.update_in(cx, |this, window, cx| {
 1574                        if let Some(display) = window.display(cx)
 1575                            && let Ok(display_uuid) = display.uuid()
 1576                        {
 1577                            let window_bounds = window.inner_window_bounds();
 1578                            let has_paths = !this.root_paths(cx).is_empty();
 1579                            if !has_paths {
 1580                                cx.background_executor()
 1581                                    .spawn(persistence::write_default_window_bounds(
 1582                                        window_bounds,
 1583                                        display_uuid,
 1584                                    ))
 1585                                    .detach_and_log_err(cx);
 1586                            }
 1587                            if let Some(database_id) = workspace_id {
 1588                                cx.background_executor()
 1589                                    .spawn(DB.set_window_open_status(
 1590                                        database_id,
 1591                                        SerializedWindowBounds(window_bounds),
 1592                                        display_uuid,
 1593                                    ))
 1594                                    .detach_and_log_err(cx);
 1595                            } else {
 1596                                cx.background_executor()
 1597                                    .spawn(persistence::write_default_window_bounds(
 1598                                        window_bounds,
 1599                                        display_uuid,
 1600                                    ))
 1601                                    .detach_and_log_err(cx);
 1602                            }
 1603                        }
 1604                        this.bounds_save_task_queued.take();
 1605                    })
 1606                    .ok();
 1607                }));
 1608                cx.notify();
 1609            }),
 1610            cx.observe_window_appearance(window, |_, window, cx| {
 1611                let window_appearance = window.appearance();
 1612
 1613                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1614
 1615                GlobalTheme::reload_theme(cx);
 1616                GlobalTheme::reload_icon_theme(cx);
 1617            }),
 1618            cx.on_release({
 1619                let weak_handle = weak_handle.clone();
 1620                move |this, cx| {
 1621                    this.app_state.workspace_store.update(cx, move |store, _| {
 1622                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1623                    })
 1624                }
 1625            }),
 1626        ];
 1627
 1628        cx.defer_in(window, move |this, window, cx| {
 1629            this.update_window_title(window, cx);
 1630            this.show_initial_notifications(cx);
 1631        });
 1632
 1633        let mut center = PaneGroup::new(center_pane.clone());
 1634        center.set_is_center(true);
 1635        center.mark_positions(cx);
 1636
 1637        Workspace {
 1638            weak_self: weak_handle.clone(),
 1639            zoomed: None,
 1640            zoomed_position: None,
 1641            previous_dock_drag_coordinates: None,
 1642            center,
 1643            panes: vec![center_pane.clone()],
 1644            panes_by_item: Default::default(),
 1645            active_pane: center_pane.clone(),
 1646            last_active_center_pane: Some(center_pane.downgrade()),
 1647            last_active_view_id: None,
 1648            status_bar,
 1649            modal_layer,
 1650            toast_layer,
 1651            titlebar_item: None,
 1652            active_worktree_override: None,
 1653            notifications: Notifications::default(),
 1654            suppressed_notifications: HashSet::default(),
 1655            left_dock,
 1656            bottom_dock,
 1657            right_dock,
 1658            project: project.clone(),
 1659            follower_states: Default::default(),
 1660            last_leaders_by_pane: Default::default(),
 1661            dispatching_keystrokes: Default::default(),
 1662            window_edited: false,
 1663            last_window_title: None,
 1664            dirty_items: Default::default(),
 1665            active_call,
 1666            database_id: workspace_id,
 1667            app_state,
 1668            _observe_current_user,
 1669            _apply_leader_updates,
 1670            _schedule_serialize_workspace: None,
 1671            _serialize_workspace_task: None,
 1672            _schedule_serialize_ssh_paths: None,
 1673            leader_updates_tx,
 1674            _subscriptions: subscriptions,
 1675            pane_history_timestamp,
 1676            workspace_actions: Default::default(),
 1677            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1678            bounds: Default::default(),
 1679            centered_layout: false,
 1680            bounds_save_task_queued: None,
 1681            on_prompt_for_new_path: None,
 1682            on_prompt_for_open_path: None,
 1683            terminal_provider: None,
 1684            debugger_provider: None,
 1685            serializable_items_tx,
 1686            _items_serializer,
 1687            session_id: Some(session_id),
 1688
 1689            scheduled_tasks: Vec::new(),
 1690            last_open_dock_positions: Vec::new(),
 1691            removing: false,
 1692        }
 1693    }
 1694
 1695    pub fn new_local(
 1696        abs_paths: Vec<PathBuf>,
 1697        app_state: Arc<AppState>,
 1698        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1699        env: Option<HashMap<String, String>>,
 1700        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1701        cx: &mut App,
 1702    ) -> Task<
 1703        anyhow::Result<(
 1704            WindowHandle<MultiWorkspace>,
 1705            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1706        )>,
 1707    > {
 1708        let project_handle = Project::local(
 1709            app_state.client.clone(),
 1710            app_state.node_runtime.clone(),
 1711            app_state.user_store.clone(),
 1712            app_state.languages.clone(),
 1713            app_state.fs.clone(),
 1714            env,
 1715            Default::default(),
 1716            cx,
 1717        );
 1718
 1719        cx.spawn(async move |cx| {
 1720            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1721            for path in abs_paths.into_iter() {
 1722                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1723                    paths_to_open.push(canonical)
 1724                } else {
 1725                    paths_to_open.push(path)
 1726                }
 1727            }
 1728
 1729            let serialized_workspace =
 1730                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1731
 1732            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1733                paths_to_open = paths.ordered_paths().cloned().collect();
 1734                if !paths.is_lexicographically_ordered() {
 1735                    project_handle.update(cx, |project, cx| {
 1736                        project.set_worktrees_reordered(true, cx);
 1737                    });
 1738                }
 1739            }
 1740
 1741            // Get project paths for all of the abs_paths
 1742            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1743                Vec::with_capacity(paths_to_open.len());
 1744
 1745            for path in paths_to_open.into_iter() {
 1746                if let Some((_, project_entry)) = cx
 1747                    .update(|cx| {
 1748                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1749                    })
 1750                    .await
 1751                    .log_err()
 1752                {
 1753                    project_paths.push((path, Some(project_entry)));
 1754                } else {
 1755                    project_paths.push((path, None));
 1756                }
 1757            }
 1758
 1759            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1760                serialized_workspace.id
 1761            } else {
 1762                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1763            };
 1764
 1765            let toolchains = DB.toolchains(workspace_id).await?;
 1766
 1767            for (toolchain, worktree_path, path) in toolchains {
 1768                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1769                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1770                    this.find_worktree(&worktree_path, cx)
 1771                        .and_then(|(worktree, rel_path)| {
 1772                            if rel_path.is_empty() {
 1773                                Some(worktree.read(cx).id())
 1774                            } else {
 1775                                None
 1776                            }
 1777                        })
 1778                }) else {
 1779                    // We did not find a worktree with a given path, but that's whatever.
 1780                    continue;
 1781                };
 1782                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1783                    continue;
 1784                }
 1785
 1786                project_handle
 1787                    .update(cx, |this, cx| {
 1788                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1789                    })
 1790                    .await;
 1791            }
 1792            if let Some(workspace) = serialized_workspace.as_ref() {
 1793                project_handle.update(cx, |this, cx| {
 1794                    for (scope, toolchains) in &workspace.user_toolchains {
 1795                        for toolchain in toolchains {
 1796                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1797                        }
 1798                    }
 1799                });
 1800            }
 1801
 1802            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1803                if let Some(window) = requesting_window {
 1804                    let centered_layout = serialized_workspace
 1805                        .as_ref()
 1806                        .map(|w| w.centered_layout)
 1807                        .unwrap_or(false);
 1808
 1809                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1810                        let workspace = cx.new(|cx| {
 1811                            let mut workspace = Workspace::new(
 1812                                Some(workspace_id),
 1813                                project_handle.clone(),
 1814                                app_state.clone(),
 1815                                window,
 1816                                cx,
 1817                            );
 1818
 1819                            workspace.centered_layout = centered_layout;
 1820
 1821                            // Call init callback to add items before window renders
 1822                            if let Some(init) = init {
 1823                                init(&mut workspace, window, cx);
 1824                            }
 1825
 1826                            workspace
 1827                        });
 1828                        multi_workspace.activate(workspace.clone(), cx);
 1829                        workspace
 1830                    })?;
 1831                    (window, workspace)
 1832                } else {
 1833                    let window_bounds_override = window_bounds_env_override();
 1834
 1835                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1836                        (Some(WindowBounds::Windowed(bounds)), None)
 1837                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1838                        && let Some(display) = workspace.display
 1839                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1840                    {
 1841                        // Reopening an existing workspace - restore its saved bounds
 1842                        (Some(bounds.0), Some(display))
 1843                    } else if let Some((display, bounds)) =
 1844                        persistence::read_default_window_bounds()
 1845                    {
 1846                        // New or empty workspace - use the last known window bounds
 1847                        (Some(bounds), Some(display))
 1848                    } else {
 1849                        // New window - let GPUI's default_bounds() handle cascading
 1850                        (None, None)
 1851                    };
 1852
 1853                    // Use the serialized workspace to construct the new window
 1854                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1855                    options.window_bounds = window_bounds;
 1856                    let centered_layout = serialized_workspace
 1857                        .as_ref()
 1858                        .map(|w| w.centered_layout)
 1859                        .unwrap_or(false);
 1860                    let window = cx.open_window(options, {
 1861                        let app_state = app_state.clone();
 1862                        let project_handle = project_handle.clone();
 1863                        move |window, cx| {
 1864                            let workspace = cx.new(|cx| {
 1865                                let mut workspace = Workspace::new(
 1866                                    Some(workspace_id),
 1867                                    project_handle,
 1868                                    app_state,
 1869                                    window,
 1870                                    cx,
 1871                                );
 1872                                workspace.centered_layout = centered_layout;
 1873
 1874                                // Call init callback to add items before window renders
 1875                                if let Some(init) = init {
 1876                                    init(&mut workspace, window, cx);
 1877                                }
 1878
 1879                                workspace
 1880                            });
 1881                            cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 1882                        }
 1883                    })?;
 1884                    let workspace =
 1885                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1886                            multi_workspace.workspace().clone()
 1887                        })?;
 1888                    (window, workspace)
 1889                };
 1890
 1891            notify_if_database_failed(window, cx);
 1892            // Check if this is an empty workspace (no paths to open)
 1893            // An empty workspace is one where project_paths is empty
 1894            let is_empty_workspace = project_paths.is_empty();
 1895            // Check if serialized workspace has paths before it's moved
 1896            let serialized_workspace_has_paths = serialized_workspace
 1897                .as_ref()
 1898                .map(|ws| !ws.paths.is_empty())
 1899                .unwrap_or(false);
 1900
 1901            let opened_items = window
 1902                .update(cx, |_, window, cx| {
 1903                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1904                        open_items(serialized_workspace, project_paths, window, cx)
 1905                    })
 1906                })?
 1907                .await
 1908                .unwrap_or_default();
 1909
 1910            // Restore default dock state for empty workspaces
 1911            // Only restore if:
 1912            // 1. This is an empty workspace (no paths), AND
 1913            // 2. The serialized workspace either doesn't exist or has no paths
 1914            if is_empty_workspace && !serialized_workspace_has_paths {
 1915                if let Some(default_docks) = persistence::read_default_dock_state() {
 1916                    window
 1917                        .update(cx, |_, window, cx| {
 1918                            workspace.update(cx, |workspace, cx| {
 1919                                for (dock, serialized_dock) in [
 1920                                    (&workspace.right_dock, &default_docks.right),
 1921                                    (&workspace.left_dock, &default_docks.left),
 1922                                    (&workspace.bottom_dock, &default_docks.bottom),
 1923                                ] {
 1924                                    dock.update(cx, |dock, cx| {
 1925                                        dock.serialized_dock = Some(serialized_dock.clone());
 1926                                        dock.restore_state(window, cx);
 1927                                    });
 1928                                }
 1929                                cx.notify();
 1930                            });
 1931                        })
 1932                        .log_err();
 1933                }
 1934            }
 1935
 1936            window
 1937                .update(cx, |_, _window, cx| {
 1938                    workspace.update(cx, |this: &mut Workspace, cx| {
 1939                        this.update_history(cx);
 1940                    });
 1941                })
 1942                .log_err();
 1943            Ok((window, opened_items))
 1944        })
 1945    }
 1946
 1947    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1948        self.weak_self.clone()
 1949    }
 1950
 1951    pub fn left_dock(&self) -> &Entity<Dock> {
 1952        &self.left_dock
 1953    }
 1954
 1955    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1956        &self.bottom_dock
 1957    }
 1958
 1959    pub fn set_bottom_dock_layout(
 1960        &mut self,
 1961        layout: BottomDockLayout,
 1962        window: &mut Window,
 1963        cx: &mut Context<Self>,
 1964    ) {
 1965        let fs = self.project().read(cx).fs();
 1966        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1967            content.workspace.bottom_dock_layout = Some(layout);
 1968        });
 1969
 1970        cx.notify();
 1971        self.serialize_workspace(window, cx);
 1972    }
 1973
 1974    pub fn right_dock(&self) -> &Entity<Dock> {
 1975        &self.right_dock
 1976    }
 1977
 1978    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1979        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1980    }
 1981
 1982    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1983        match position {
 1984            DockPosition::Left => &self.left_dock,
 1985            DockPosition::Bottom => &self.bottom_dock,
 1986            DockPosition::Right => &self.right_dock,
 1987        }
 1988    }
 1989
 1990    pub fn is_edited(&self) -> bool {
 1991        self.window_edited
 1992    }
 1993
 1994    pub fn add_panel<T: Panel>(
 1995        &mut self,
 1996        panel: Entity<T>,
 1997        window: &mut Window,
 1998        cx: &mut Context<Self>,
 1999    ) {
 2000        let focus_handle = panel.panel_focus_handle(cx);
 2001        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2002            .detach();
 2003
 2004        let dock_position = panel.position(window, cx);
 2005        let dock = self.dock_at_position(dock_position);
 2006
 2007        dock.update(cx, |dock, cx| {
 2008            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 2009        });
 2010    }
 2011
 2012    pub fn remove_panel<T: Panel>(
 2013        &mut self,
 2014        panel: &Entity<T>,
 2015        window: &mut Window,
 2016        cx: &mut Context<Self>,
 2017    ) {
 2018        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2019            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2020        }
 2021    }
 2022
 2023    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2024        &self.status_bar
 2025    }
 2026
 2027    pub fn set_workspace_sidebar_open(&self, open: bool, cx: &mut App) {
 2028        self.status_bar.update(cx, |status_bar, cx| {
 2029            status_bar.set_workspace_sidebar_open(open, cx);
 2030        });
 2031    }
 2032
 2033    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2034        StatusBarSettings::get_global(cx).show
 2035    }
 2036
 2037    pub fn app_state(&self) -> &Arc<AppState> {
 2038        &self.app_state
 2039    }
 2040
 2041    pub fn user_store(&self) -> &Entity<UserStore> {
 2042        &self.app_state.user_store
 2043    }
 2044
 2045    pub fn project(&self) -> &Entity<Project> {
 2046        &self.project
 2047    }
 2048
 2049    pub fn path_style(&self, cx: &App) -> PathStyle {
 2050        self.project.read(cx).path_style(cx)
 2051    }
 2052
 2053    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2054        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2055
 2056        for pane_handle in &self.panes {
 2057            let pane = pane_handle.read(cx);
 2058
 2059            for entry in pane.activation_history() {
 2060                history.insert(
 2061                    entry.entity_id,
 2062                    history
 2063                        .get(&entry.entity_id)
 2064                        .cloned()
 2065                        .unwrap_or(0)
 2066                        .max(entry.timestamp),
 2067                );
 2068            }
 2069        }
 2070
 2071        history
 2072    }
 2073
 2074    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2075        let mut recent_item: Option<Entity<T>> = None;
 2076        let mut recent_timestamp = 0;
 2077        for pane_handle in &self.panes {
 2078            let pane = pane_handle.read(cx);
 2079            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2080                pane.items().map(|item| (item.item_id(), item)).collect();
 2081            for entry in pane.activation_history() {
 2082                if entry.timestamp > recent_timestamp
 2083                    && let Some(&item) = item_map.get(&entry.entity_id)
 2084                    && let Some(typed_item) = item.act_as::<T>(cx)
 2085                {
 2086                    recent_timestamp = entry.timestamp;
 2087                    recent_item = Some(typed_item);
 2088                }
 2089            }
 2090        }
 2091        recent_item
 2092    }
 2093
 2094    pub fn recent_navigation_history_iter(
 2095        &self,
 2096        cx: &App,
 2097    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2098        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2099        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2100
 2101        for pane in &self.panes {
 2102            let pane = pane.read(cx);
 2103
 2104            pane.nav_history()
 2105                .for_each_entry(cx, &mut |entry, (project_path, fs_path)| {
 2106                    if let Some(fs_path) = &fs_path {
 2107                        abs_paths_opened
 2108                            .entry(fs_path.clone())
 2109                            .or_default()
 2110                            .insert(project_path.clone());
 2111                    }
 2112                    let timestamp = entry.timestamp;
 2113                    match history.entry(project_path) {
 2114                        hash_map::Entry::Occupied(mut entry) => {
 2115                            let (_, old_timestamp) = entry.get();
 2116                            if &timestamp > old_timestamp {
 2117                                entry.insert((fs_path, timestamp));
 2118                            }
 2119                        }
 2120                        hash_map::Entry::Vacant(entry) => {
 2121                            entry.insert((fs_path, timestamp));
 2122                        }
 2123                    }
 2124                });
 2125
 2126            if let Some(item) = pane.active_item()
 2127                && let Some(project_path) = item.project_path(cx)
 2128            {
 2129                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2130
 2131                if let Some(fs_path) = &fs_path {
 2132                    abs_paths_opened
 2133                        .entry(fs_path.clone())
 2134                        .or_default()
 2135                        .insert(project_path.clone());
 2136                }
 2137
 2138                history.insert(project_path, (fs_path, std::usize::MAX));
 2139            }
 2140        }
 2141
 2142        history
 2143            .into_iter()
 2144            .sorted_by_key(|(_, (_, order))| *order)
 2145            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2146            .rev()
 2147            .filter(move |(history_path, abs_path)| {
 2148                let latest_project_path_opened = abs_path
 2149                    .as_ref()
 2150                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2151                    .and_then(|project_paths| {
 2152                        project_paths
 2153                            .iter()
 2154                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2155                    });
 2156
 2157                latest_project_path_opened.is_none_or(|path| path == history_path)
 2158            })
 2159    }
 2160
 2161    pub fn recent_navigation_history(
 2162        &self,
 2163        limit: Option<usize>,
 2164        cx: &App,
 2165    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2166        self.recent_navigation_history_iter(cx)
 2167            .take(limit.unwrap_or(usize::MAX))
 2168            .collect()
 2169    }
 2170
 2171    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2172        for pane in &self.panes {
 2173            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2174        }
 2175    }
 2176
 2177    fn navigate_history(
 2178        &mut self,
 2179        pane: WeakEntity<Pane>,
 2180        mode: NavigationMode,
 2181        window: &mut Window,
 2182        cx: &mut Context<Workspace>,
 2183    ) -> Task<Result<()>> {
 2184        self.navigate_history_impl(
 2185            pane,
 2186            mode,
 2187            window,
 2188            &mut |history, cx| history.pop(mode, cx),
 2189            cx,
 2190        )
 2191    }
 2192
 2193    fn navigate_tag_history(
 2194        &mut self,
 2195        pane: WeakEntity<Pane>,
 2196        mode: TagNavigationMode,
 2197        window: &mut Window,
 2198        cx: &mut Context<Workspace>,
 2199    ) -> Task<Result<()>> {
 2200        self.navigate_history_impl(
 2201            pane,
 2202            NavigationMode::Normal,
 2203            window,
 2204            &mut |history, _cx| history.pop_tag(mode),
 2205            cx,
 2206        )
 2207    }
 2208
 2209    fn navigate_history_impl(
 2210        &mut self,
 2211        pane: WeakEntity<Pane>,
 2212        mode: NavigationMode,
 2213        window: &mut Window,
 2214        cb: &mut dyn FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2215        cx: &mut Context<Workspace>,
 2216    ) -> Task<Result<()>> {
 2217        let to_load = if let Some(pane) = pane.upgrade() {
 2218            pane.update(cx, |pane, cx| {
 2219                window.focus(&pane.focus_handle(cx), cx);
 2220                loop {
 2221                    // Retrieve the weak item handle from the history.
 2222                    let entry = cb(pane.nav_history_mut(), cx)?;
 2223
 2224                    // If the item is still present in this pane, then activate it.
 2225                    if let Some(index) = entry
 2226                        .item
 2227                        .upgrade()
 2228                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2229                    {
 2230                        let prev_active_item_index = pane.active_item_index();
 2231                        pane.nav_history_mut().set_mode(mode);
 2232                        pane.activate_item(index, true, true, window, cx);
 2233                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2234
 2235                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2236                        if let Some(data) = entry.data {
 2237                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2238                        }
 2239
 2240                        if navigated {
 2241                            break None;
 2242                        }
 2243                    } else {
 2244                        // If the item is no longer present in this pane, then retrieve its
 2245                        // path info in order to reopen it.
 2246                        break pane
 2247                            .nav_history()
 2248                            .path_for_item(entry.item.id())
 2249                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2250                    }
 2251                }
 2252            })
 2253        } else {
 2254            None
 2255        };
 2256
 2257        if let Some((project_path, abs_path, entry)) = to_load {
 2258            // If the item was no longer present, then load it again from its previous path, first try the local path
 2259            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2260
 2261            cx.spawn_in(window, async move  |workspace, cx| {
 2262                let open_by_project_path = open_by_project_path.await;
 2263                let mut navigated = false;
 2264                match open_by_project_path
 2265                    .with_context(|| format!("Navigating to {project_path:?}"))
 2266                {
 2267                    Ok((project_entry_id, build_item)) => {
 2268                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2269                            pane.nav_history_mut().set_mode(mode);
 2270                            pane.active_item().map(|p| p.item_id())
 2271                        })?;
 2272
 2273                        pane.update_in(cx, |pane, window, cx| {
 2274                            let item = pane.open_item(
 2275                                project_entry_id,
 2276                                project_path,
 2277                                true,
 2278                                entry.is_preview,
 2279                                true,
 2280                                None,
 2281                                window, cx,
 2282                                build_item,
 2283                            );
 2284                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2285                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2286                            if let Some(data) = entry.data {
 2287                                navigated |= item.navigate(data, window, cx);
 2288                            }
 2289                        })?;
 2290                    }
 2291                    Err(open_by_project_path_e) => {
 2292                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2293                        // and its worktree is now dropped
 2294                        if let Some(abs_path) = abs_path {
 2295                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2296                                pane.nav_history_mut().set_mode(mode);
 2297                                pane.active_item().map(|p| p.item_id())
 2298                            })?;
 2299                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2300                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2301                            })?;
 2302                            match open_by_abs_path
 2303                                .await
 2304                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2305                            {
 2306                                Ok(item) => {
 2307                                    pane.update_in(cx, |pane, window, cx| {
 2308                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2309                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2310                                        if let Some(data) = entry.data {
 2311                                            navigated |= item.navigate(data, window, cx);
 2312                                        }
 2313                                    })?;
 2314                                }
 2315                                Err(open_by_abs_path_e) => {
 2316                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2317                                }
 2318                            }
 2319                        }
 2320                    }
 2321                }
 2322
 2323                if !navigated {
 2324                    workspace
 2325                        .update_in(cx, |workspace, window, cx| {
 2326                            Self::navigate_history(workspace, pane, mode, window, cx)
 2327                        })?
 2328                        .await?;
 2329                }
 2330
 2331                Ok(())
 2332            })
 2333        } else {
 2334            Task::ready(Ok(()))
 2335        }
 2336    }
 2337
 2338    pub fn go_back(
 2339        &mut self,
 2340        pane: WeakEntity<Pane>,
 2341        window: &mut Window,
 2342        cx: &mut Context<Workspace>,
 2343    ) -> Task<Result<()>> {
 2344        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2345    }
 2346
 2347    pub fn go_forward(
 2348        &mut self,
 2349        pane: WeakEntity<Pane>,
 2350        window: &mut Window,
 2351        cx: &mut Context<Workspace>,
 2352    ) -> Task<Result<()>> {
 2353        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2354    }
 2355
 2356    pub fn reopen_closed_item(
 2357        &mut self,
 2358        window: &mut Window,
 2359        cx: &mut Context<Workspace>,
 2360    ) -> Task<Result<()>> {
 2361        self.navigate_history(
 2362            self.active_pane().downgrade(),
 2363            NavigationMode::ReopeningClosedItem,
 2364            window,
 2365            cx,
 2366        )
 2367    }
 2368
 2369    pub fn client(&self) -> &Arc<Client> {
 2370        &self.app_state.client
 2371    }
 2372
 2373    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2374        self.titlebar_item = Some(item);
 2375        cx.notify();
 2376    }
 2377
 2378    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2379        self.on_prompt_for_new_path = Some(prompt)
 2380    }
 2381
 2382    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2383        self.on_prompt_for_open_path = Some(prompt)
 2384    }
 2385
 2386    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2387        self.terminal_provider = Some(Box::new(provider));
 2388    }
 2389
 2390    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2391        self.debugger_provider = Some(Arc::new(provider));
 2392    }
 2393
 2394    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2395        self.debugger_provider.clone()
 2396    }
 2397
 2398    pub fn prompt_for_open_path(
 2399        &mut self,
 2400        path_prompt_options: PathPromptOptions,
 2401        lister: DirectoryLister,
 2402        window: &mut Window,
 2403        cx: &mut Context<Self>,
 2404    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2405        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2406            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2407            let rx = prompt(self, lister, window, cx);
 2408            self.on_prompt_for_open_path = Some(prompt);
 2409            rx
 2410        } else {
 2411            let (tx, rx) = oneshot::channel();
 2412            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2413
 2414            cx.spawn_in(window, async move |workspace, cx| {
 2415                let Ok(result) = abs_path.await else {
 2416                    return Ok(());
 2417                };
 2418
 2419                match result {
 2420                    Ok(result) => {
 2421                        tx.send(result).ok();
 2422                    }
 2423                    Err(err) => {
 2424                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2425                            workspace.show_portal_error(err.to_string(), cx);
 2426                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2427                            let rx = prompt(workspace, lister, window, cx);
 2428                            workspace.on_prompt_for_open_path = Some(prompt);
 2429                            rx
 2430                        })?;
 2431                        if let Ok(path) = rx.await {
 2432                            tx.send(path).ok();
 2433                        }
 2434                    }
 2435                };
 2436                anyhow::Ok(())
 2437            })
 2438            .detach();
 2439
 2440            rx
 2441        }
 2442    }
 2443
 2444    pub fn prompt_for_new_path(
 2445        &mut self,
 2446        lister: DirectoryLister,
 2447        suggested_name: Option<String>,
 2448        window: &mut Window,
 2449        cx: &mut Context<Self>,
 2450    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2451        if self.project.read(cx).is_via_collab()
 2452            || self.project.read(cx).is_via_remote_server()
 2453            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2454        {
 2455            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2456            let rx = prompt(self, lister, suggested_name, window, cx);
 2457            self.on_prompt_for_new_path = Some(prompt);
 2458            return rx;
 2459        }
 2460
 2461        let (tx, rx) = oneshot::channel();
 2462        cx.spawn_in(window, async move |workspace, cx| {
 2463            let abs_path = workspace.update(cx, |workspace, cx| {
 2464                let relative_to = workspace
 2465                    .most_recent_active_path(cx)
 2466                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2467                    .or_else(|| {
 2468                        let project = workspace.project.read(cx);
 2469                        project.visible_worktrees(cx).find_map(|worktree| {
 2470                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2471                        })
 2472                    })
 2473                    .or_else(std::env::home_dir)
 2474                    .unwrap_or_else(|| PathBuf::from(""));
 2475                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2476            })?;
 2477            let abs_path = match abs_path.await? {
 2478                Ok(path) => path,
 2479                Err(err) => {
 2480                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2481                        workspace.show_portal_error(err.to_string(), cx);
 2482
 2483                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2484                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2485                        workspace.on_prompt_for_new_path = Some(prompt);
 2486                        rx
 2487                    })?;
 2488                    if let Ok(path) = rx.await {
 2489                        tx.send(path).ok();
 2490                    }
 2491                    return anyhow::Ok(());
 2492                }
 2493            };
 2494
 2495            tx.send(abs_path.map(|path| vec![path])).ok();
 2496            anyhow::Ok(())
 2497        })
 2498        .detach();
 2499
 2500        rx
 2501    }
 2502
 2503    pub fn titlebar_item(&self) -> Option<AnyView> {
 2504        self.titlebar_item.clone()
 2505    }
 2506
 2507    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2508    /// When set, git-related operations should use this worktree instead of deriving
 2509    /// the active worktree from the focused file.
 2510    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2511        self.active_worktree_override
 2512    }
 2513
 2514    pub fn set_active_worktree_override(
 2515        &mut self,
 2516        worktree_id: Option<WorktreeId>,
 2517        cx: &mut Context<Self>,
 2518    ) {
 2519        self.active_worktree_override = worktree_id;
 2520        cx.notify();
 2521    }
 2522
 2523    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2524        self.active_worktree_override = None;
 2525        cx.notify();
 2526    }
 2527
 2528    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2529    ///
 2530    /// If the given workspace has a local project, then it will be passed
 2531    /// to the callback. Otherwise, a new empty window will be created.
 2532    pub fn with_local_workspace<T, F>(
 2533        &mut self,
 2534        window: &mut Window,
 2535        cx: &mut Context<Self>,
 2536        callback: F,
 2537    ) -> Task<Result<T>>
 2538    where
 2539        T: 'static,
 2540        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2541    {
 2542        if self.project.read(cx).is_local() {
 2543            Task::ready(Ok(callback(self, window, cx)))
 2544        } else {
 2545            let env = self.project.read(cx).cli_environment(cx);
 2546            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2547            cx.spawn_in(window, async move |_vh, cx| {
 2548                let (multi_workspace_window, _) = task.await?;
 2549                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2550                    let workspace = multi_workspace.workspace().clone();
 2551                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2552                })
 2553            })
 2554        }
 2555    }
 2556
 2557    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2558    ///
 2559    /// If the given workspace has a local project, then it will be passed
 2560    /// to the callback. Otherwise, a new empty window will be created.
 2561    pub fn with_local_or_wsl_workspace<T, F>(
 2562        &mut self,
 2563        window: &mut Window,
 2564        cx: &mut Context<Self>,
 2565        callback: F,
 2566    ) -> Task<Result<T>>
 2567    where
 2568        T: 'static,
 2569        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2570    {
 2571        let project = self.project.read(cx);
 2572        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2573            Task::ready(Ok(callback(self, window, cx)))
 2574        } else {
 2575            let env = self.project.read(cx).cli_environment(cx);
 2576            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2577            cx.spawn_in(window, async move |_vh, cx| {
 2578                let (multi_workspace_window, _) = task.await?;
 2579                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2580                    let workspace = multi_workspace.workspace().clone();
 2581                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2582                })
 2583            })
 2584        }
 2585    }
 2586
 2587    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2588        self.project.read(cx).worktrees(cx)
 2589    }
 2590
 2591    pub fn visible_worktrees<'a>(
 2592        &self,
 2593        cx: &'a App,
 2594    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2595        self.project.read(cx).visible_worktrees(cx)
 2596    }
 2597
 2598    #[cfg(any(test, feature = "test-support"))]
 2599    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2600        let futures = self
 2601            .worktrees(cx)
 2602            .filter_map(|worktree| worktree.read(cx).as_local())
 2603            .map(|worktree| worktree.scan_complete())
 2604            .collect::<Vec<_>>();
 2605        async move {
 2606            for future in futures {
 2607                future.await;
 2608            }
 2609        }
 2610    }
 2611
 2612    pub fn close_global(cx: &mut App) {
 2613        cx.defer(|cx| {
 2614            cx.windows().iter().find(|window| {
 2615                window
 2616                    .update(cx, |_, window, _| {
 2617                        if window.is_window_active() {
 2618                            //This can only get called when the window's project connection has been lost
 2619                            //so we don't need to prompt the user for anything and instead just close the window
 2620                            window.remove_window();
 2621                            true
 2622                        } else {
 2623                            false
 2624                        }
 2625                    })
 2626                    .unwrap_or(false)
 2627            });
 2628        });
 2629    }
 2630
 2631    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2632        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2633        cx.spawn_in(window, async move |_, cx| {
 2634            if prepare.await? {
 2635                cx.update(|window, _cx| window.remove_window())?;
 2636            }
 2637            anyhow::Ok(())
 2638        })
 2639        .detach_and_log_err(cx)
 2640    }
 2641
 2642    pub fn move_focused_panel_to_next_position(
 2643        &mut self,
 2644        _: &MoveFocusedPanelToNextPosition,
 2645        window: &mut Window,
 2646        cx: &mut Context<Self>,
 2647    ) {
 2648        let docks = self.all_docks();
 2649        let active_dock = docks
 2650            .into_iter()
 2651            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2652
 2653        if let Some(dock) = active_dock {
 2654            dock.update(cx, |dock, cx| {
 2655                let active_panel = dock
 2656                    .active_panel()
 2657                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2658
 2659                if let Some(panel) = active_panel {
 2660                    panel.move_to_next_position(window, cx);
 2661                }
 2662            })
 2663        }
 2664    }
 2665
 2666    pub fn prepare_to_close(
 2667        &mut self,
 2668        close_intent: CloseIntent,
 2669        window: &mut Window,
 2670        cx: &mut Context<Self>,
 2671    ) -> Task<Result<bool>> {
 2672        let active_call = self.active_call().cloned();
 2673
 2674        cx.spawn_in(window, async move |this, cx| {
 2675            this.update(cx, |this, _| {
 2676                if close_intent == CloseIntent::CloseWindow {
 2677                    this.removing = true;
 2678                }
 2679            })?;
 2680
 2681            let workspace_count = cx.update(|_window, cx| {
 2682                cx.windows()
 2683                    .iter()
 2684                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 2685                    .count()
 2686            })?;
 2687
 2688            #[cfg(target_os = "macos")]
 2689            let save_last_workspace = false;
 2690
 2691            // On Linux and Windows, closing the last window should restore the last workspace.
 2692            #[cfg(not(target_os = "macos"))]
 2693            let save_last_workspace = {
 2694                let remaining_workspaces = cx.update(|_window, cx| {
 2695                    cx.windows()
 2696                        .iter()
 2697                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 2698                        .filter_map(|multi_workspace| {
 2699                            multi_workspace
 2700                                .update(cx, |multi_workspace, _, cx| {
 2701                                    multi_workspace.workspace().read(cx).removing
 2702                                })
 2703                                .ok()
 2704                        })
 2705                        .filter(|removing| !removing)
 2706                        .count()
 2707                })?;
 2708
 2709                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2710            };
 2711
 2712            if let Some(active_call) = active_call
 2713                && workspace_count == 1
 2714                && active_call.read_with(cx, |call, _| call.room().is_some())
 2715            {
 2716                if close_intent == CloseIntent::CloseWindow {
 2717                    let answer = cx.update(|window, cx| {
 2718                        window.prompt(
 2719                            PromptLevel::Warning,
 2720                            "Do you want to leave the current call?",
 2721                            None,
 2722                            &["Close window and hang up", "Cancel"],
 2723                            cx,
 2724                        )
 2725                    })?;
 2726
 2727                    if answer.await.log_err() == Some(1) {
 2728                        return anyhow::Ok(false);
 2729                    } else {
 2730                        active_call
 2731                            .update(cx, |call, cx| call.hang_up(cx))
 2732                            .await
 2733                            .log_err();
 2734                    }
 2735                }
 2736                if close_intent == CloseIntent::ReplaceWindow {
 2737                    _ = active_call.update(cx, |this, cx| {
 2738                        let multi_workspace = cx
 2739                            .windows()
 2740                            .iter()
 2741                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 2742                            .next()
 2743                            .unwrap();
 2744                        let project = multi_workspace
 2745                            .read(cx)?
 2746                            .workspace()
 2747                            .read(cx)
 2748                            .project
 2749                            .clone();
 2750                        if project.read(cx).is_shared() {
 2751                            this.unshare_project(project, cx)?;
 2752                        }
 2753                        Ok::<_, anyhow::Error>(())
 2754                    })?;
 2755                }
 2756            }
 2757
 2758            let save_result = this
 2759                .update_in(cx, |this, window, cx| {
 2760                    this.save_all_internal(SaveIntent::Close, window, cx)
 2761                })?
 2762                .await;
 2763
 2764            // If we're not quitting, but closing, we remove the workspace from
 2765            // the current session.
 2766            if close_intent != CloseIntent::Quit
 2767                && !save_last_workspace
 2768                && save_result.as_ref().is_ok_and(|&res| res)
 2769            {
 2770                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2771                    .await;
 2772            }
 2773
 2774            save_result
 2775        })
 2776    }
 2777
 2778    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2779        self.save_all_internal(
 2780            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2781            window,
 2782            cx,
 2783        )
 2784        .detach_and_log_err(cx);
 2785    }
 2786
 2787    fn send_keystrokes(
 2788        &mut self,
 2789        action: &SendKeystrokes,
 2790        window: &mut Window,
 2791        cx: &mut Context<Self>,
 2792    ) {
 2793        let keystrokes: Vec<Keystroke> = action
 2794            .0
 2795            .split(' ')
 2796            .flat_map(|k| Keystroke::parse(k).log_err())
 2797            .map(|k| {
 2798                cx.keyboard_mapper()
 2799                    .map_key_equivalent(k, false)
 2800                    .inner()
 2801                    .clone()
 2802            })
 2803            .collect();
 2804        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2805    }
 2806
 2807    pub fn send_keystrokes_impl(
 2808        &mut self,
 2809        keystrokes: Vec<Keystroke>,
 2810        window: &mut Window,
 2811        cx: &mut Context<Self>,
 2812    ) -> Shared<Task<()>> {
 2813        let mut state = self.dispatching_keystrokes.borrow_mut();
 2814        if !state.dispatched.insert(keystrokes.clone()) {
 2815            cx.propagate();
 2816            return state.task.clone().unwrap();
 2817        }
 2818
 2819        state.queue.extend(keystrokes);
 2820
 2821        let keystrokes = self.dispatching_keystrokes.clone();
 2822        if state.task.is_none() {
 2823            state.task = Some(
 2824                window
 2825                    .spawn(cx, async move |cx| {
 2826                        // limit to 100 keystrokes to avoid infinite recursion.
 2827                        for _ in 0..100 {
 2828                            let mut state = keystrokes.borrow_mut();
 2829                            let Some(keystroke) = state.queue.pop_front() else {
 2830                                state.dispatched.clear();
 2831                                state.task.take();
 2832                                return;
 2833                            };
 2834                            drop(state);
 2835                            cx.update(|window, cx| {
 2836                                let focused = window.focused(cx);
 2837                                window.dispatch_keystroke(keystroke.clone(), cx);
 2838                                if window.focused(cx) != focused {
 2839                                    // dispatch_keystroke may cause the focus to change.
 2840                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2841                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2842                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2843                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2844                                    // )
 2845                                    window.draw(cx).clear();
 2846                                }
 2847                            })
 2848                            .ok();
 2849                        }
 2850
 2851                        *keystrokes.borrow_mut() = Default::default();
 2852                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2853                    })
 2854                    .shared(),
 2855            );
 2856        }
 2857        state.task.clone().unwrap()
 2858    }
 2859
 2860    fn save_all_internal(
 2861        &mut self,
 2862        mut save_intent: SaveIntent,
 2863        window: &mut Window,
 2864        cx: &mut Context<Self>,
 2865    ) -> Task<Result<bool>> {
 2866        if self.project.read(cx).is_disconnected(cx) {
 2867            return Task::ready(Ok(true));
 2868        }
 2869        let dirty_items = self
 2870            .panes
 2871            .iter()
 2872            .flat_map(|pane| {
 2873                pane.read(cx).items().filter_map(|item| {
 2874                    if item.is_dirty(cx) {
 2875                        item.tab_content_text(0, cx);
 2876                        Some((pane.downgrade(), item.boxed_clone()))
 2877                    } else {
 2878                        None
 2879                    }
 2880                })
 2881            })
 2882            .collect::<Vec<_>>();
 2883
 2884        let project = self.project.clone();
 2885        cx.spawn_in(window, async move |workspace, cx| {
 2886            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2887                let (serialize_tasks, remaining_dirty_items) =
 2888                    workspace.update_in(cx, |workspace, window, cx| {
 2889                        let mut remaining_dirty_items = Vec::new();
 2890                        let mut serialize_tasks = Vec::new();
 2891                        for (pane, item) in dirty_items {
 2892                            if let Some(task) = item
 2893                                .to_serializable_item_handle(cx)
 2894                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2895                            {
 2896                                serialize_tasks.push(task);
 2897                            } else {
 2898                                remaining_dirty_items.push((pane, item));
 2899                            }
 2900                        }
 2901                        (serialize_tasks, remaining_dirty_items)
 2902                    })?;
 2903
 2904                futures::future::try_join_all(serialize_tasks).await?;
 2905
 2906                if remaining_dirty_items.len() > 1 {
 2907                    let answer = workspace.update_in(cx, |_, window, cx| {
 2908                        let detail = Pane::file_names_for_prompt(
 2909                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2910                            cx,
 2911                        );
 2912                        window.prompt(
 2913                            PromptLevel::Warning,
 2914                            "Do you want to save all changes in the following files?",
 2915                            Some(&detail),
 2916                            &["Save all", "Discard all", "Cancel"],
 2917                            cx,
 2918                        )
 2919                    })?;
 2920                    match answer.await.log_err() {
 2921                        Some(0) => save_intent = SaveIntent::SaveAll,
 2922                        Some(1) => save_intent = SaveIntent::Skip,
 2923                        Some(2) => return Ok(false),
 2924                        _ => {}
 2925                    }
 2926                }
 2927
 2928                remaining_dirty_items
 2929            } else {
 2930                dirty_items
 2931            };
 2932
 2933            for (pane, item) in dirty_items {
 2934                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2935                    (
 2936                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2937                        item.project_entry_ids(cx),
 2938                    )
 2939                })?;
 2940                if (singleton || !project_entry_ids.is_empty())
 2941                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2942                {
 2943                    return Ok(false);
 2944                }
 2945            }
 2946            Ok(true)
 2947        })
 2948    }
 2949
 2950    pub fn open_workspace_for_paths(
 2951        &mut self,
 2952        replace_current_window: bool,
 2953        paths: Vec<PathBuf>,
 2954        window: &mut Window,
 2955        cx: &mut Context<Self>,
 2956    ) -> Task<Result<()>> {
 2957        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 2958        let is_remote = self.project.read(cx).is_via_collab();
 2959        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2960        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2961
 2962        let window_to_replace = if replace_current_window {
 2963            window_handle
 2964        } else if is_remote || has_worktree || has_dirty_items {
 2965            None
 2966        } else {
 2967            window_handle
 2968        };
 2969        let app_state = self.app_state.clone();
 2970
 2971        cx.spawn(async move |_, cx| {
 2972            cx.update(|cx| {
 2973                open_paths(
 2974                    &paths,
 2975                    app_state,
 2976                    OpenOptions {
 2977                        replace_window: window_to_replace,
 2978                        ..Default::default()
 2979                    },
 2980                    cx,
 2981                )
 2982            })
 2983            .await?;
 2984            Ok(())
 2985        })
 2986    }
 2987
 2988    #[allow(clippy::type_complexity)]
 2989    pub fn open_paths(
 2990        &mut self,
 2991        mut abs_paths: Vec<PathBuf>,
 2992        options: OpenOptions,
 2993        pane: Option<WeakEntity<Pane>>,
 2994        window: &mut Window,
 2995        cx: &mut Context<Self>,
 2996    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2997        let fs = self.app_state.fs.clone();
 2998
 2999        let caller_ordered_abs_paths = abs_paths.clone();
 3000
 3001        // Sort the paths to ensure we add worktrees for parents before their children.
 3002        abs_paths.sort_unstable();
 3003        cx.spawn_in(window, async move |this, cx| {
 3004            let mut tasks = Vec::with_capacity(abs_paths.len());
 3005
 3006            for abs_path in &abs_paths {
 3007                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3008                    OpenVisible::All => Some(true),
 3009                    OpenVisible::None => Some(false),
 3010                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3011                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3012                        Some(None) => Some(true),
 3013                        None => None,
 3014                    },
 3015                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3016                        Some(Some(metadata)) => Some(metadata.is_dir),
 3017                        Some(None) => Some(false),
 3018                        None => None,
 3019                    },
 3020                };
 3021                let project_path = match visible {
 3022                    Some(visible) => match this
 3023                        .update(cx, |this, cx| {
 3024                            Workspace::project_path_for_path(
 3025                                this.project.clone(),
 3026                                abs_path,
 3027                                visible,
 3028                                cx,
 3029                            )
 3030                        })
 3031                        .log_err()
 3032                    {
 3033                        Some(project_path) => project_path.await.log_err(),
 3034                        None => None,
 3035                    },
 3036                    None => None,
 3037                };
 3038
 3039                let this = this.clone();
 3040                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3041                let fs = fs.clone();
 3042                let pane = pane.clone();
 3043                let task = cx.spawn(async move |cx| {
 3044                    let (_worktree, project_path) = project_path?;
 3045                    if fs.is_dir(&abs_path).await {
 3046                        // Opening a directory should not race to update the active entry.
 3047                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3048                        None
 3049                    } else {
 3050                        Some(
 3051                            this.update_in(cx, |this, window, cx| {
 3052                                this.open_path(
 3053                                    project_path,
 3054                                    pane,
 3055                                    options.focus.unwrap_or(true),
 3056                                    window,
 3057                                    cx,
 3058                                )
 3059                            })
 3060                            .ok()?
 3061                            .await,
 3062                        )
 3063                    }
 3064                });
 3065                tasks.push(task);
 3066            }
 3067
 3068            let results = futures::future::join_all(tasks).await;
 3069
 3070            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3071            let mut winner: Option<(PathBuf, bool)> = None;
 3072            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3073                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3074                    if !metadata.is_dir {
 3075                        winner = Some((abs_path, false));
 3076                        break;
 3077                    }
 3078                    if winner.is_none() {
 3079                        winner = Some((abs_path, true));
 3080                    }
 3081                } else if winner.is_none() {
 3082                    winner = Some((abs_path, false));
 3083                }
 3084            }
 3085
 3086            // Compute the winner entry id on the foreground thread and emit once, after all
 3087            // paths finish opening. This avoids races between concurrently-opening paths
 3088            // (directories in particular) and makes the resulting project panel selection
 3089            // deterministic.
 3090            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3091                'emit_winner: {
 3092                    let winner_abs_path: Arc<Path> =
 3093                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3094
 3095                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3096                        OpenVisible::All => true,
 3097                        OpenVisible::None => false,
 3098                        OpenVisible::OnlyFiles => !winner_is_dir,
 3099                        OpenVisible::OnlyDirectories => winner_is_dir,
 3100                    };
 3101
 3102                    let Some(worktree_task) = this
 3103                        .update(cx, |workspace, cx| {
 3104                            workspace.project.update(cx, |project, cx| {
 3105                                project.find_or_create_worktree(
 3106                                    winner_abs_path.as_ref(),
 3107                                    visible,
 3108                                    cx,
 3109                                )
 3110                            })
 3111                        })
 3112                        .ok()
 3113                    else {
 3114                        break 'emit_winner;
 3115                    };
 3116
 3117                    let Ok((worktree, _)) = worktree_task.await else {
 3118                        break 'emit_winner;
 3119                    };
 3120
 3121                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3122                        let worktree = worktree.read(cx);
 3123                        let worktree_abs_path = worktree.abs_path();
 3124                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3125                            worktree.root_entry()
 3126                        } else {
 3127                            winner_abs_path
 3128                                .strip_prefix(worktree_abs_path.as_ref())
 3129                                .ok()
 3130                                .and_then(|relative_path| {
 3131                                    let relative_path =
 3132                                        RelPath::new(relative_path, PathStyle::local())
 3133                                            .log_err()?;
 3134                                    worktree.entry_for_path(&relative_path)
 3135                                })
 3136                        }?;
 3137                        Some(entry.id)
 3138                    }) else {
 3139                        break 'emit_winner;
 3140                    };
 3141
 3142                    this.update(cx, |workspace, cx| {
 3143                        workspace.project.update(cx, |_, cx| {
 3144                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3145                        });
 3146                    })
 3147                    .ok();
 3148                }
 3149            }
 3150
 3151            results
 3152        })
 3153    }
 3154
 3155    pub fn open_resolved_path(
 3156        &mut self,
 3157        path: ResolvedPath,
 3158        window: &mut Window,
 3159        cx: &mut Context<Self>,
 3160    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3161        match path {
 3162            ResolvedPath::ProjectPath { project_path, .. } => {
 3163                self.open_path(project_path, None, true, window, cx)
 3164            }
 3165            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3166                PathBuf::from(path),
 3167                OpenOptions {
 3168                    visible: Some(OpenVisible::None),
 3169                    ..Default::default()
 3170                },
 3171                window,
 3172                cx,
 3173            ),
 3174        }
 3175    }
 3176
 3177    pub fn absolute_path_of_worktree(
 3178        &self,
 3179        worktree_id: WorktreeId,
 3180        cx: &mut Context<Self>,
 3181    ) -> Option<PathBuf> {
 3182        self.project
 3183            .read(cx)
 3184            .worktree_for_id(worktree_id, cx)
 3185            // TODO: use `abs_path` or `root_dir`
 3186            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3187    }
 3188
 3189    fn add_folder_to_project(
 3190        &mut self,
 3191        _: &AddFolderToProject,
 3192        window: &mut Window,
 3193        cx: &mut Context<Self>,
 3194    ) {
 3195        let project = self.project.read(cx);
 3196        if project.is_via_collab() {
 3197            self.show_error(
 3198                &anyhow!("You cannot add folders to someone else's project"),
 3199                cx,
 3200            );
 3201            return;
 3202        }
 3203        let paths = self.prompt_for_open_path(
 3204            PathPromptOptions {
 3205                files: false,
 3206                directories: true,
 3207                multiple: true,
 3208                prompt: None,
 3209            },
 3210            DirectoryLister::Project(self.project.clone()),
 3211            window,
 3212            cx,
 3213        );
 3214        cx.spawn_in(window, async move |this, cx| {
 3215            if let Some(paths) = paths.await.log_err().flatten() {
 3216                let results = this
 3217                    .update_in(cx, |this, window, cx| {
 3218                        this.open_paths(
 3219                            paths,
 3220                            OpenOptions {
 3221                                visible: Some(OpenVisible::All),
 3222                                ..Default::default()
 3223                            },
 3224                            None,
 3225                            window,
 3226                            cx,
 3227                        )
 3228                    })?
 3229                    .await;
 3230                for result in results.into_iter().flatten() {
 3231                    result.log_err();
 3232                }
 3233            }
 3234            anyhow::Ok(())
 3235        })
 3236        .detach_and_log_err(cx);
 3237    }
 3238
 3239    pub fn project_path_for_path(
 3240        project: Entity<Project>,
 3241        abs_path: &Path,
 3242        visible: bool,
 3243        cx: &mut App,
 3244    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3245        let entry = project.update(cx, |project, cx| {
 3246            project.find_or_create_worktree(abs_path, visible, cx)
 3247        });
 3248        cx.spawn(async move |cx| {
 3249            let (worktree, path) = entry.await?;
 3250            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3251            Ok((worktree, ProjectPath { worktree_id, path }))
 3252        })
 3253    }
 3254
 3255    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3256        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3257    }
 3258
 3259    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3260        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3261    }
 3262
 3263    pub fn items_of_type<'a, T: Item>(
 3264        &'a self,
 3265        cx: &'a App,
 3266    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3267        self.panes
 3268            .iter()
 3269            .flat_map(|pane| pane.read(cx).items_of_type())
 3270    }
 3271
 3272    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3273        self.active_pane().read(cx).active_item()
 3274    }
 3275
 3276    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3277        let item = self.active_item(cx)?;
 3278        item.to_any_view().downcast::<I>().ok()
 3279    }
 3280
 3281    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3282        self.active_item(cx).and_then(|item| item.project_path(cx))
 3283    }
 3284
 3285    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3286        self.recent_navigation_history_iter(cx)
 3287            .filter_map(|(path, abs_path)| {
 3288                let worktree = self
 3289                    .project
 3290                    .read(cx)
 3291                    .worktree_for_id(path.worktree_id, cx)?;
 3292                if worktree.read(cx).is_visible() {
 3293                    abs_path
 3294                } else {
 3295                    None
 3296                }
 3297            })
 3298            .next()
 3299    }
 3300
 3301    pub fn save_active_item(
 3302        &mut self,
 3303        save_intent: SaveIntent,
 3304        window: &mut Window,
 3305        cx: &mut App,
 3306    ) -> Task<Result<()>> {
 3307        let project = self.project.clone();
 3308        let pane = self.active_pane();
 3309        let item = pane.read(cx).active_item();
 3310        let pane = pane.downgrade();
 3311
 3312        window.spawn(cx, async move |cx| {
 3313            if let Some(item) = item {
 3314                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3315                    .await
 3316                    .map(|_| ())
 3317            } else {
 3318                Ok(())
 3319            }
 3320        })
 3321    }
 3322
 3323    pub fn close_inactive_items_and_panes(
 3324        &mut self,
 3325        action: &CloseInactiveTabsAndPanes,
 3326        window: &mut Window,
 3327        cx: &mut Context<Self>,
 3328    ) {
 3329        if let Some(task) = self.close_all_internal(
 3330            true,
 3331            action.save_intent.unwrap_or(SaveIntent::Close),
 3332            window,
 3333            cx,
 3334        ) {
 3335            task.detach_and_log_err(cx)
 3336        }
 3337    }
 3338
 3339    pub fn close_all_items_and_panes(
 3340        &mut self,
 3341        action: &CloseAllItemsAndPanes,
 3342        window: &mut Window,
 3343        cx: &mut Context<Self>,
 3344    ) {
 3345        if let Some(task) = self.close_all_internal(
 3346            false,
 3347            action.save_intent.unwrap_or(SaveIntent::Close),
 3348            window,
 3349            cx,
 3350        ) {
 3351            task.detach_and_log_err(cx)
 3352        }
 3353    }
 3354
 3355    /// Closes the active item across all panes.
 3356    pub fn close_item_in_all_panes(
 3357        &mut self,
 3358        action: &CloseItemInAllPanes,
 3359        window: &mut Window,
 3360        cx: &mut Context<Self>,
 3361    ) {
 3362        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3363            return;
 3364        };
 3365
 3366        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3367        let close_pinned = action.close_pinned;
 3368
 3369        if let Some(project_path) = active_item.project_path(cx) {
 3370            self.close_items_with_project_path(
 3371                &project_path,
 3372                save_intent,
 3373                close_pinned,
 3374                window,
 3375                cx,
 3376            );
 3377        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3378            let item_id = active_item.item_id();
 3379            self.active_pane().update(cx, |pane, cx| {
 3380                pane.close_item_by_id(item_id, save_intent, window, cx)
 3381                    .detach_and_log_err(cx);
 3382            });
 3383        }
 3384    }
 3385
 3386    /// Closes all items with the given project path across all panes.
 3387    pub fn close_items_with_project_path(
 3388        &mut self,
 3389        project_path: &ProjectPath,
 3390        save_intent: SaveIntent,
 3391        close_pinned: bool,
 3392        window: &mut Window,
 3393        cx: &mut Context<Self>,
 3394    ) {
 3395        let panes = self.panes().to_vec();
 3396        for pane in panes {
 3397            pane.update(cx, |pane, cx| {
 3398                pane.close_items_for_project_path(
 3399                    project_path,
 3400                    save_intent,
 3401                    close_pinned,
 3402                    window,
 3403                    cx,
 3404                )
 3405                .detach_and_log_err(cx);
 3406            });
 3407        }
 3408    }
 3409
 3410    fn close_all_internal(
 3411        &mut self,
 3412        retain_active_pane: bool,
 3413        save_intent: SaveIntent,
 3414        window: &mut Window,
 3415        cx: &mut Context<Self>,
 3416    ) -> Option<Task<Result<()>>> {
 3417        let current_pane = self.active_pane();
 3418
 3419        let mut tasks = Vec::new();
 3420
 3421        if retain_active_pane {
 3422            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3423                pane.close_other_items(
 3424                    &CloseOtherItems {
 3425                        save_intent: None,
 3426                        close_pinned: false,
 3427                    },
 3428                    None,
 3429                    window,
 3430                    cx,
 3431                )
 3432            });
 3433
 3434            tasks.push(current_pane_close);
 3435        }
 3436
 3437        for pane in self.panes() {
 3438            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3439                continue;
 3440            }
 3441
 3442            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3443                pane.close_all_items(
 3444                    &CloseAllItems {
 3445                        save_intent: Some(save_intent),
 3446                        close_pinned: false,
 3447                    },
 3448                    window,
 3449                    cx,
 3450                )
 3451            });
 3452
 3453            tasks.push(close_pane_items)
 3454        }
 3455
 3456        if tasks.is_empty() {
 3457            None
 3458        } else {
 3459            Some(cx.spawn_in(window, async move |_, _| {
 3460                for task in tasks {
 3461                    task.await?
 3462                }
 3463                Ok(())
 3464            }))
 3465        }
 3466    }
 3467
 3468    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3469        self.dock_at_position(position).read(cx).is_open()
 3470    }
 3471
 3472    pub fn toggle_dock(
 3473        &mut self,
 3474        dock_side: DockPosition,
 3475        window: &mut Window,
 3476        cx: &mut Context<Self>,
 3477    ) {
 3478        let mut focus_center = false;
 3479        let mut reveal_dock = false;
 3480
 3481        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3482        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3483
 3484        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3485            telemetry::event!(
 3486                "Panel Button Clicked",
 3487                name = panel.persistent_name(),
 3488                toggle_state = !was_visible
 3489            );
 3490        }
 3491        if was_visible {
 3492            self.save_open_dock_positions(cx);
 3493        }
 3494
 3495        let dock = self.dock_at_position(dock_side);
 3496        dock.update(cx, |dock, cx| {
 3497            dock.set_open(!was_visible, window, cx);
 3498
 3499            if dock.active_panel().is_none() {
 3500                let Some(panel_ix) = dock
 3501                    .first_enabled_panel_idx(cx)
 3502                    .log_with_level(log::Level::Info)
 3503                else {
 3504                    return;
 3505                };
 3506                dock.activate_panel(panel_ix, window, cx);
 3507            }
 3508
 3509            if let Some(active_panel) = dock.active_panel() {
 3510                if was_visible {
 3511                    if active_panel
 3512                        .panel_focus_handle(cx)
 3513                        .contains_focused(window, cx)
 3514                    {
 3515                        focus_center = true;
 3516                    }
 3517                } else {
 3518                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3519                    window.focus(focus_handle, cx);
 3520                    reveal_dock = true;
 3521                }
 3522            }
 3523        });
 3524
 3525        if reveal_dock {
 3526            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3527        }
 3528
 3529        if focus_center {
 3530            self.active_pane
 3531                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3532        }
 3533
 3534        cx.notify();
 3535        self.serialize_workspace(window, cx);
 3536    }
 3537
 3538    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3539        self.all_docks().into_iter().find(|&dock| {
 3540            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3541        })
 3542    }
 3543
 3544    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3545        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3546            self.save_open_dock_positions(cx);
 3547            dock.update(cx, |dock, cx| {
 3548                dock.set_open(false, window, cx);
 3549            });
 3550            return true;
 3551        }
 3552        false
 3553    }
 3554
 3555    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3556        self.save_open_dock_positions(cx);
 3557        for dock in self.all_docks() {
 3558            dock.update(cx, |dock, cx| {
 3559                dock.set_open(false, window, cx);
 3560            });
 3561        }
 3562
 3563        cx.focus_self(window);
 3564        cx.notify();
 3565        self.serialize_workspace(window, cx);
 3566    }
 3567
 3568    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3569        self.all_docks()
 3570            .into_iter()
 3571            .filter_map(|dock| {
 3572                let dock_ref = dock.read(cx);
 3573                if dock_ref.is_open() {
 3574                    Some(dock_ref.position())
 3575                } else {
 3576                    None
 3577                }
 3578            })
 3579            .collect()
 3580    }
 3581
 3582    /// Saves the positions of currently open docks.
 3583    ///
 3584    /// Updates `last_open_dock_positions` with positions of all currently open
 3585    /// docks, to later be restored by the 'Toggle All Docks' action.
 3586    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3587        let open_dock_positions = self.get_open_dock_positions(cx);
 3588        if !open_dock_positions.is_empty() {
 3589            self.last_open_dock_positions = open_dock_positions;
 3590        }
 3591    }
 3592
 3593    /// Toggles all docks between open and closed states.
 3594    ///
 3595    /// If any docks are open, closes all and remembers their positions. If all
 3596    /// docks are closed, restores the last remembered dock configuration.
 3597    fn toggle_all_docks(
 3598        &mut self,
 3599        _: &ToggleAllDocks,
 3600        window: &mut Window,
 3601        cx: &mut Context<Self>,
 3602    ) {
 3603        let open_dock_positions = self.get_open_dock_positions(cx);
 3604
 3605        if !open_dock_positions.is_empty() {
 3606            self.close_all_docks(window, cx);
 3607        } else if !self.last_open_dock_positions.is_empty() {
 3608            self.restore_last_open_docks(window, cx);
 3609        }
 3610    }
 3611
 3612    /// Reopens docks from the most recently remembered configuration.
 3613    ///
 3614    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3615    /// and clears the stored positions.
 3616    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3617        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3618
 3619        for position in positions_to_open {
 3620            let dock = self.dock_at_position(position);
 3621            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3622        }
 3623
 3624        cx.focus_self(window);
 3625        cx.notify();
 3626        self.serialize_workspace(window, cx);
 3627    }
 3628
 3629    /// Transfer focus to the panel of the given type.
 3630    pub fn focus_panel<T: Panel>(
 3631        &mut self,
 3632        window: &mut Window,
 3633        cx: &mut Context<Self>,
 3634    ) -> Option<Entity<T>> {
 3635        let panel = self.focus_or_unfocus_panel::<T>(window, cx, &mut |_, _, _| true)?;
 3636        panel.to_any().downcast().ok()
 3637    }
 3638
 3639    /// Focus the panel of the given type if it isn't already focused. If it is
 3640    /// already focused, then transfer focus back to the workspace center.
 3641    /// When the `close_panel_on_toggle` setting is enabled, also closes the
 3642    /// panel when transferring focus back to the center.
 3643    pub fn toggle_panel_focus<T: Panel>(
 3644        &mut self,
 3645        window: &mut Window,
 3646        cx: &mut Context<Self>,
 3647    ) -> bool {
 3648        let mut did_focus_panel = false;
 3649        self.focus_or_unfocus_panel::<T>(window, cx, &mut |panel, window, cx| {
 3650            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3651            did_focus_panel
 3652        });
 3653
 3654        if !did_focus_panel && WorkspaceSettings::get_global(cx).close_panel_on_toggle {
 3655            self.close_panel::<T>(window, cx);
 3656        }
 3657
 3658        telemetry::event!(
 3659            "Panel Button Clicked",
 3660            name = T::persistent_name(),
 3661            toggle_state = did_focus_panel
 3662        );
 3663
 3664        did_focus_panel
 3665    }
 3666
 3667    pub fn activate_panel_for_proto_id(
 3668        &mut self,
 3669        panel_id: PanelId,
 3670        window: &mut Window,
 3671        cx: &mut Context<Self>,
 3672    ) -> Option<Arc<dyn PanelHandle>> {
 3673        let mut panel = None;
 3674        for dock in self.all_docks() {
 3675            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3676                panel = dock.update(cx, |dock, cx| {
 3677                    dock.activate_panel(panel_index, window, cx);
 3678                    dock.set_open(true, window, cx);
 3679                    dock.active_panel().cloned()
 3680                });
 3681                break;
 3682            }
 3683        }
 3684
 3685        if panel.is_some() {
 3686            cx.notify();
 3687            self.serialize_workspace(window, cx);
 3688        }
 3689
 3690        panel
 3691    }
 3692
 3693    /// Focus or unfocus the given panel type, depending on the given callback.
 3694    fn focus_or_unfocus_panel<T: Panel>(
 3695        &mut self,
 3696        window: &mut Window,
 3697        cx: &mut Context<Self>,
 3698        should_focus: &mut dyn FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3699    ) -> Option<Arc<dyn PanelHandle>> {
 3700        let mut result_panel = None;
 3701        let mut serialize = false;
 3702        for dock in self.all_docks() {
 3703            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3704                let mut focus_center = false;
 3705                let panel = dock.update(cx, |dock, cx| {
 3706                    dock.activate_panel(panel_index, window, cx);
 3707
 3708                    let panel = dock.active_panel().cloned();
 3709                    if let Some(panel) = panel.as_ref() {
 3710                        if should_focus(&**panel, window, cx) {
 3711                            dock.set_open(true, window, cx);
 3712                            panel.panel_focus_handle(cx).focus(window, cx);
 3713                        } else {
 3714                            focus_center = true;
 3715                        }
 3716                    }
 3717                    panel
 3718                });
 3719
 3720                if focus_center {
 3721                    self.active_pane
 3722                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3723                }
 3724
 3725                result_panel = panel;
 3726                serialize = true;
 3727                break;
 3728            }
 3729        }
 3730
 3731        if serialize {
 3732            self.serialize_workspace(window, cx);
 3733        }
 3734
 3735        cx.notify();
 3736        result_panel
 3737    }
 3738
 3739    /// Open the panel of the given type
 3740    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3741        for dock in self.all_docks() {
 3742            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3743                dock.update(cx, |dock, cx| {
 3744                    dock.activate_panel(panel_index, window, cx);
 3745                    dock.set_open(true, window, cx);
 3746                });
 3747            }
 3748        }
 3749    }
 3750
 3751    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3752        for dock in self.all_docks().iter() {
 3753            dock.update(cx, |dock, cx| {
 3754                if dock.panel::<T>().is_some() {
 3755                    dock.set_open(false, window, cx)
 3756                }
 3757            })
 3758        }
 3759    }
 3760
 3761    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3762        self.all_docks()
 3763            .iter()
 3764            .find_map(|dock| dock.read(cx).panel::<T>())
 3765    }
 3766
 3767    fn dismiss_zoomed_items_to_reveal(
 3768        &mut self,
 3769        dock_to_reveal: Option<DockPosition>,
 3770        window: &mut Window,
 3771        cx: &mut Context<Self>,
 3772    ) {
 3773        // If a center pane is zoomed, unzoom it.
 3774        for pane in &self.panes {
 3775            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3776                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3777            }
 3778        }
 3779
 3780        // If another dock is zoomed, hide it.
 3781        let mut focus_center = false;
 3782        for dock in self.all_docks() {
 3783            dock.update(cx, |dock, cx| {
 3784                if Some(dock.position()) != dock_to_reveal
 3785                    && let Some(panel) = dock.active_panel()
 3786                    && panel.is_zoomed(window, cx)
 3787                {
 3788                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3789                    dock.set_open(false, window, cx);
 3790                }
 3791            });
 3792        }
 3793
 3794        if focus_center {
 3795            self.active_pane
 3796                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3797        }
 3798
 3799        if self.zoomed_position != dock_to_reveal {
 3800            self.zoomed = None;
 3801            self.zoomed_position = None;
 3802            cx.emit(Event::ZoomChanged);
 3803        }
 3804
 3805        cx.notify();
 3806    }
 3807
 3808    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3809        let pane = cx.new(|cx| {
 3810            let mut pane = Pane::new(
 3811                self.weak_handle(),
 3812                self.project.clone(),
 3813                self.pane_history_timestamp.clone(),
 3814                None,
 3815                NewFile.boxed_clone(),
 3816                true,
 3817                window,
 3818                cx,
 3819            );
 3820            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3821            pane
 3822        });
 3823        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3824            .detach();
 3825        self.panes.push(pane.clone());
 3826
 3827        window.focus(&pane.focus_handle(cx), cx);
 3828
 3829        cx.emit(Event::PaneAdded(pane.clone()));
 3830        pane
 3831    }
 3832
 3833    pub fn add_item_to_center(
 3834        &mut self,
 3835        item: Box<dyn ItemHandle>,
 3836        window: &mut Window,
 3837        cx: &mut Context<Self>,
 3838    ) -> bool {
 3839        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3840            if let Some(center_pane) = center_pane.upgrade() {
 3841                center_pane.update(cx, |pane, cx| {
 3842                    pane.add_item(item, true, true, None, window, cx)
 3843                });
 3844                true
 3845            } else {
 3846                false
 3847            }
 3848        } else {
 3849            false
 3850        }
 3851    }
 3852
 3853    pub fn add_item_to_active_pane(
 3854        &mut self,
 3855        item: Box<dyn ItemHandle>,
 3856        destination_index: Option<usize>,
 3857        focus_item: bool,
 3858        window: &mut Window,
 3859        cx: &mut App,
 3860    ) {
 3861        self.add_item(
 3862            self.active_pane.clone(),
 3863            item,
 3864            destination_index,
 3865            false,
 3866            focus_item,
 3867            window,
 3868            cx,
 3869        )
 3870    }
 3871
 3872    pub fn add_item(
 3873        &mut self,
 3874        pane: Entity<Pane>,
 3875        item: Box<dyn ItemHandle>,
 3876        destination_index: Option<usize>,
 3877        activate_pane: bool,
 3878        focus_item: bool,
 3879        window: &mut Window,
 3880        cx: &mut App,
 3881    ) {
 3882        pane.update(cx, |pane, cx| {
 3883            pane.add_item(
 3884                item,
 3885                activate_pane,
 3886                focus_item,
 3887                destination_index,
 3888                window,
 3889                cx,
 3890            )
 3891        });
 3892    }
 3893
 3894    pub fn split_item(
 3895        &mut self,
 3896        split_direction: SplitDirection,
 3897        item: Box<dyn ItemHandle>,
 3898        window: &mut Window,
 3899        cx: &mut Context<Self>,
 3900    ) {
 3901        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3902        self.add_item(new_pane, item, None, true, true, window, cx);
 3903    }
 3904
 3905    pub fn open_abs_path(
 3906        &mut self,
 3907        abs_path: PathBuf,
 3908        options: OpenOptions,
 3909        window: &mut Window,
 3910        cx: &mut Context<Self>,
 3911    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3912        cx.spawn_in(window, async move |workspace, cx| {
 3913            let open_paths_task_result = workspace
 3914                .update_in(cx, |workspace, window, cx| {
 3915                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3916                })
 3917                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3918                .await;
 3919            anyhow::ensure!(
 3920                open_paths_task_result.len() == 1,
 3921                "open abs path {abs_path:?} task returned incorrect number of results"
 3922            );
 3923            match open_paths_task_result
 3924                .into_iter()
 3925                .next()
 3926                .expect("ensured single task result")
 3927            {
 3928                Some(open_result) => {
 3929                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3930                }
 3931                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3932            }
 3933        })
 3934    }
 3935
 3936    pub fn split_abs_path(
 3937        &mut self,
 3938        abs_path: PathBuf,
 3939        visible: bool,
 3940        window: &mut Window,
 3941        cx: &mut Context<Self>,
 3942    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3943        let project_path_task =
 3944            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3945        cx.spawn_in(window, async move |this, cx| {
 3946            let (_, path) = project_path_task.await?;
 3947            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3948                .await
 3949        })
 3950    }
 3951
 3952    pub fn open_path(
 3953        &mut self,
 3954        path: impl Into<ProjectPath>,
 3955        pane: Option<WeakEntity<Pane>>,
 3956        focus_item: bool,
 3957        window: &mut Window,
 3958        cx: &mut App,
 3959    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3960        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3961    }
 3962
 3963    pub fn open_path_preview(
 3964        &mut self,
 3965        path: impl Into<ProjectPath>,
 3966        pane: Option<WeakEntity<Pane>>,
 3967        focus_item: bool,
 3968        allow_preview: bool,
 3969        activate: bool,
 3970        window: &mut Window,
 3971        cx: &mut App,
 3972    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3973        let pane = pane.unwrap_or_else(|| {
 3974            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3975                self.panes
 3976                    .first()
 3977                    .expect("There must be an active pane")
 3978                    .downgrade()
 3979            })
 3980        });
 3981
 3982        let project_path = path.into();
 3983        let task = self.load_path(project_path.clone(), window, cx);
 3984        window.spawn(cx, async move |cx| {
 3985            let (project_entry_id, build_item) = task.await?;
 3986
 3987            pane.update_in(cx, |pane, window, cx| {
 3988                pane.open_item(
 3989                    project_entry_id,
 3990                    project_path,
 3991                    focus_item,
 3992                    allow_preview,
 3993                    activate,
 3994                    None,
 3995                    window,
 3996                    cx,
 3997                    build_item,
 3998                )
 3999            })
 4000        })
 4001    }
 4002
 4003    pub fn split_path(
 4004        &mut self,
 4005        path: impl Into<ProjectPath>,
 4006        window: &mut Window,
 4007        cx: &mut Context<Self>,
 4008    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4009        self.split_path_preview(path, false, None, window, cx)
 4010    }
 4011
 4012    pub fn split_path_preview(
 4013        &mut self,
 4014        path: impl Into<ProjectPath>,
 4015        allow_preview: bool,
 4016        split_direction: Option<SplitDirection>,
 4017        window: &mut Window,
 4018        cx: &mut Context<Self>,
 4019    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4020        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4021            self.panes
 4022                .first()
 4023                .expect("There must be an active pane")
 4024                .downgrade()
 4025        });
 4026
 4027        if let Member::Pane(center_pane) = &self.center.root
 4028            && center_pane.read(cx).items_len() == 0
 4029        {
 4030            return self.open_path(path, Some(pane), true, window, cx);
 4031        }
 4032
 4033        let project_path = path.into();
 4034        let task = self.load_path(project_path.clone(), window, cx);
 4035        cx.spawn_in(window, async move |this, cx| {
 4036            let (project_entry_id, build_item) = task.await?;
 4037            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4038                let pane = pane.upgrade()?;
 4039                let new_pane = this.split_pane(
 4040                    pane,
 4041                    split_direction.unwrap_or(SplitDirection::Right),
 4042                    window,
 4043                    cx,
 4044                );
 4045                new_pane.update(cx, |new_pane, cx| {
 4046                    Some(new_pane.open_item(
 4047                        project_entry_id,
 4048                        project_path,
 4049                        true,
 4050                        allow_preview,
 4051                        true,
 4052                        None,
 4053                        window,
 4054                        cx,
 4055                        build_item,
 4056                    ))
 4057                })
 4058            })
 4059            .map(|option| option.context("pane was dropped"))?
 4060        })
 4061    }
 4062
 4063    fn load_path(
 4064        &mut self,
 4065        path: ProjectPath,
 4066        window: &mut Window,
 4067        cx: &mut App,
 4068    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4069        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4070        registry.open_path(self.project(), &path, window, cx)
 4071    }
 4072
 4073    pub fn find_project_item<T>(
 4074        &self,
 4075        pane: &Entity<Pane>,
 4076        project_item: &Entity<T::Item>,
 4077        cx: &App,
 4078    ) -> Option<Entity<T>>
 4079    where
 4080        T: ProjectItem,
 4081    {
 4082        use project::ProjectItem as _;
 4083        let project_item = project_item.read(cx);
 4084        let entry_id = project_item.entry_id(cx);
 4085        let project_path = project_item.project_path(cx);
 4086
 4087        let mut item = None;
 4088        if let Some(entry_id) = entry_id {
 4089            item = pane.read(cx).item_for_entry(entry_id, cx);
 4090        }
 4091        if item.is_none()
 4092            && let Some(project_path) = project_path
 4093        {
 4094            item = pane.read(cx).item_for_path(project_path, cx);
 4095        }
 4096
 4097        item.and_then(|item| item.downcast::<T>())
 4098    }
 4099
 4100    pub fn is_project_item_open<T>(
 4101        &self,
 4102        pane: &Entity<Pane>,
 4103        project_item: &Entity<T::Item>,
 4104        cx: &App,
 4105    ) -> bool
 4106    where
 4107        T: ProjectItem,
 4108    {
 4109        self.find_project_item::<T>(pane, project_item, cx)
 4110            .is_some()
 4111    }
 4112
 4113    pub fn open_project_item<T>(
 4114        &mut self,
 4115        pane: Entity<Pane>,
 4116        project_item: Entity<T::Item>,
 4117        activate_pane: bool,
 4118        focus_item: bool,
 4119        keep_old_preview: bool,
 4120        allow_new_preview: bool,
 4121        window: &mut Window,
 4122        cx: &mut Context<Self>,
 4123    ) -> Entity<T>
 4124    where
 4125        T: ProjectItem,
 4126    {
 4127        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4128
 4129        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4130            if !keep_old_preview
 4131                && let Some(old_id) = old_item_id
 4132                && old_id != item.item_id()
 4133            {
 4134                // switching to a different item, so unpreview old active item
 4135                pane.update(cx, |pane, _| {
 4136                    pane.unpreview_item_if_preview(old_id);
 4137                });
 4138            }
 4139
 4140            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4141            if !allow_new_preview {
 4142                pane.update(cx, |pane, _| {
 4143                    pane.unpreview_item_if_preview(item.item_id());
 4144                });
 4145            }
 4146            return item;
 4147        }
 4148
 4149        let item = pane.update(cx, |pane, cx| {
 4150            cx.new(|cx| {
 4151                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4152            })
 4153        });
 4154        let mut destination_index = None;
 4155        pane.update(cx, |pane, cx| {
 4156            if !keep_old_preview && let Some(old_id) = old_item_id {
 4157                pane.unpreview_item_if_preview(old_id);
 4158            }
 4159            if allow_new_preview {
 4160                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4161            }
 4162        });
 4163
 4164        self.add_item(
 4165            pane,
 4166            Box::new(item.clone()),
 4167            destination_index,
 4168            activate_pane,
 4169            focus_item,
 4170            window,
 4171            cx,
 4172        );
 4173        item
 4174    }
 4175
 4176    pub fn open_shared_screen(
 4177        &mut self,
 4178        peer_id: PeerId,
 4179        window: &mut Window,
 4180        cx: &mut Context<Self>,
 4181    ) {
 4182        if let Some(shared_screen) =
 4183            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4184        {
 4185            self.active_pane.update(cx, |pane, cx| {
 4186                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4187            });
 4188        }
 4189    }
 4190
 4191    pub fn activate_item(
 4192        &mut self,
 4193        item: &dyn ItemHandle,
 4194        activate_pane: bool,
 4195        focus_item: bool,
 4196        window: &mut Window,
 4197        cx: &mut App,
 4198    ) -> bool {
 4199        let result = self.panes.iter().find_map(|pane| {
 4200            pane.read(cx)
 4201                .index_for_item(item)
 4202                .map(|ix| (pane.clone(), ix))
 4203        });
 4204        if let Some((pane, ix)) = result {
 4205            pane.update(cx, |pane, cx| {
 4206                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4207            });
 4208            true
 4209        } else {
 4210            false
 4211        }
 4212    }
 4213
 4214    fn activate_pane_at_index(
 4215        &mut self,
 4216        action: &ActivatePane,
 4217        window: &mut Window,
 4218        cx: &mut Context<Self>,
 4219    ) {
 4220        let panes = self.center.panes();
 4221        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4222            window.focus(&pane.focus_handle(cx), cx);
 4223        } else {
 4224            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4225                .detach();
 4226        }
 4227    }
 4228
 4229    fn move_item_to_pane_at_index(
 4230        &mut self,
 4231        action: &MoveItemToPane,
 4232        window: &mut Window,
 4233        cx: &mut Context<Self>,
 4234    ) {
 4235        let panes = self.center.panes();
 4236        let destination = match panes.get(action.destination) {
 4237            Some(&destination) => destination.clone(),
 4238            None => {
 4239                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4240                    return;
 4241                }
 4242                let direction = SplitDirection::Right;
 4243                let split_off_pane = self
 4244                    .find_pane_in_direction(direction, cx)
 4245                    .unwrap_or_else(|| self.active_pane.clone());
 4246                let new_pane = self.add_pane(window, cx);
 4247                if self
 4248                    .center
 4249                    .split(&split_off_pane, &new_pane, direction, cx)
 4250                    .log_err()
 4251                    .is_none()
 4252                {
 4253                    return;
 4254                };
 4255                new_pane
 4256            }
 4257        };
 4258
 4259        if action.clone {
 4260            if self
 4261                .active_pane
 4262                .read(cx)
 4263                .active_item()
 4264                .is_some_and(|item| item.can_split(cx))
 4265            {
 4266                clone_active_item(
 4267                    self.database_id(),
 4268                    &self.active_pane,
 4269                    &destination,
 4270                    action.focus,
 4271                    window,
 4272                    cx,
 4273                );
 4274                return;
 4275            }
 4276        }
 4277        move_active_item(
 4278            &self.active_pane,
 4279            &destination,
 4280            action.focus,
 4281            true,
 4282            window,
 4283            cx,
 4284        )
 4285    }
 4286
 4287    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4288        let panes = self.center.panes();
 4289        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4290            let next_ix = (ix + 1) % panes.len();
 4291            let next_pane = panes[next_ix].clone();
 4292            window.focus(&next_pane.focus_handle(cx), cx);
 4293        }
 4294    }
 4295
 4296    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4297        let panes = self.center.panes();
 4298        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4299            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4300            let prev_pane = panes[prev_ix].clone();
 4301            window.focus(&prev_pane.focus_handle(cx), cx);
 4302        }
 4303    }
 4304
 4305    pub fn activate_pane_in_direction(
 4306        &mut self,
 4307        direction: SplitDirection,
 4308        window: &mut Window,
 4309        cx: &mut App,
 4310    ) {
 4311        use ActivateInDirectionTarget as Target;
 4312        enum Origin {
 4313            LeftDock,
 4314            RightDock,
 4315            BottomDock,
 4316            Center,
 4317        }
 4318
 4319        let origin: Origin = [
 4320            (&self.left_dock, Origin::LeftDock),
 4321            (&self.right_dock, Origin::RightDock),
 4322            (&self.bottom_dock, Origin::BottomDock),
 4323        ]
 4324        .into_iter()
 4325        .find_map(|(dock, origin)| {
 4326            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4327                Some(origin)
 4328            } else {
 4329                None
 4330            }
 4331        })
 4332        .unwrap_or(Origin::Center);
 4333
 4334        let get_last_active_pane = || {
 4335            let pane = self
 4336                .last_active_center_pane
 4337                .clone()
 4338                .unwrap_or_else(|| {
 4339                    self.panes
 4340                        .first()
 4341                        .expect("There must be an active pane")
 4342                        .downgrade()
 4343                })
 4344                .upgrade()?;
 4345            (pane.read(cx).items_len() != 0).then_some(pane)
 4346        };
 4347
 4348        let try_dock =
 4349            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4350
 4351        let target = match (origin, direction) {
 4352            // We're in the center, so we first try to go to a different pane,
 4353            // otherwise try to go to a dock.
 4354            (Origin::Center, direction) => {
 4355                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4356                    Some(Target::Pane(pane))
 4357                } else {
 4358                    match direction {
 4359                        SplitDirection::Up => None,
 4360                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4361                        SplitDirection::Left => try_dock(&self.left_dock),
 4362                        SplitDirection::Right => try_dock(&self.right_dock),
 4363                    }
 4364                }
 4365            }
 4366
 4367            (Origin::LeftDock, SplitDirection::Right) => {
 4368                if let Some(last_active_pane) = get_last_active_pane() {
 4369                    Some(Target::Pane(last_active_pane))
 4370                } else {
 4371                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4372                }
 4373            }
 4374
 4375            (Origin::LeftDock, SplitDirection::Down)
 4376            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4377
 4378            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4379            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4380            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4381
 4382            (Origin::RightDock, SplitDirection::Left) => {
 4383                if let Some(last_active_pane) = get_last_active_pane() {
 4384                    Some(Target::Pane(last_active_pane))
 4385                } else {
 4386                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4387                }
 4388            }
 4389
 4390            _ => None,
 4391        };
 4392
 4393        match target {
 4394            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4395                let pane = pane.read(cx);
 4396                if let Some(item) = pane.active_item() {
 4397                    item.item_focus_handle(cx).focus(window, cx);
 4398                } else {
 4399                    log::error!(
 4400                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4401                    );
 4402                }
 4403            }
 4404            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4405                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4406                window.defer(cx, move |window, cx| {
 4407                    let dock = dock.read(cx);
 4408                    if let Some(panel) = dock.active_panel() {
 4409                        panel.panel_focus_handle(cx).focus(window, cx);
 4410                    } else {
 4411                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4412                    }
 4413                })
 4414            }
 4415            None => {}
 4416        }
 4417    }
 4418
 4419    pub fn move_item_to_pane_in_direction(
 4420        &mut self,
 4421        action: &MoveItemToPaneInDirection,
 4422        window: &mut Window,
 4423        cx: &mut Context<Self>,
 4424    ) {
 4425        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4426            Some(destination) => destination,
 4427            None => {
 4428                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4429                    return;
 4430                }
 4431                let new_pane = self.add_pane(window, cx);
 4432                if self
 4433                    .center
 4434                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4435                    .log_err()
 4436                    .is_none()
 4437                {
 4438                    return;
 4439                };
 4440                new_pane
 4441            }
 4442        };
 4443
 4444        if action.clone {
 4445            if self
 4446                .active_pane
 4447                .read(cx)
 4448                .active_item()
 4449                .is_some_and(|item| item.can_split(cx))
 4450            {
 4451                clone_active_item(
 4452                    self.database_id(),
 4453                    &self.active_pane,
 4454                    &destination,
 4455                    action.focus,
 4456                    window,
 4457                    cx,
 4458                );
 4459                return;
 4460            }
 4461        }
 4462        move_active_item(
 4463            &self.active_pane,
 4464            &destination,
 4465            action.focus,
 4466            true,
 4467            window,
 4468            cx,
 4469        );
 4470    }
 4471
 4472    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4473        self.center.bounding_box_for_pane(pane)
 4474    }
 4475
 4476    pub fn find_pane_in_direction(
 4477        &mut self,
 4478        direction: SplitDirection,
 4479        cx: &App,
 4480    ) -> Option<Entity<Pane>> {
 4481        self.center
 4482            .find_pane_in_direction(&self.active_pane, direction, cx)
 4483            .cloned()
 4484    }
 4485
 4486    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4487        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4488            self.center.swap(&self.active_pane, &to, cx);
 4489            cx.notify();
 4490        }
 4491    }
 4492
 4493    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4494        if self
 4495            .center
 4496            .move_to_border(&self.active_pane, direction, cx)
 4497            .unwrap()
 4498        {
 4499            cx.notify();
 4500        }
 4501    }
 4502
 4503    pub fn resize_pane(
 4504        &mut self,
 4505        axis: gpui::Axis,
 4506        amount: Pixels,
 4507        window: &mut Window,
 4508        cx: &mut Context<Self>,
 4509    ) {
 4510        let docks = self.all_docks();
 4511        let active_dock = docks
 4512            .into_iter()
 4513            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4514
 4515        if let Some(dock) = active_dock {
 4516            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4517                return;
 4518            };
 4519            match dock.read(cx).position() {
 4520                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4521                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4522                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4523            }
 4524        } else {
 4525            self.center
 4526                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4527        }
 4528        cx.notify();
 4529    }
 4530
 4531    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4532        self.center.reset_pane_sizes(cx);
 4533        cx.notify();
 4534    }
 4535
 4536    fn handle_pane_focused(
 4537        &mut self,
 4538        pane: Entity<Pane>,
 4539        window: &mut Window,
 4540        cx: &mut Context<Self>,
 4541    ) {
 4542        // This is explicitly hoisted out of the following check for pane identity as
 4543        // terminal panel panes are not registered as a center panes.
 4544        self.status_bar.update(cx, |status_bar, cx| {
 4545            status_bar.set_active_pane(&pane, window, cx);
 4546        });
 4547        if self.active_pane != pane {
 4548            self.set_active_pane(&pane, window, cx);
 4549        }
 4550
 4551        if self.last_active_center_pane.is_none() {
 4552            self.last_active_center_pane = Some(pane.downgrade());
 4553        }
 4554
 4555        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4556        // This prevents the dock from closing when focus events fire during window activation.
 4557        // We also preserve any dock whose active panel itself has focus — this covers
 4558        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4559        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4560            let dock_read = dock.read(cx);
 4561            if let Some(panel) = dock_read.active_panel() {
 4562                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4563                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4564                {
 4565                    return Some(dock_read.position());
 4566                }
 4567            }
 4568            None
 4569        });
 4570
 4571        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4572        if pane.read(cx).is_zoomed() {
 4573            self.zoomed = Some(pane.downgrade().into());
 4574        } else {
 4575            self.zoomed = None;
 4576        }
 4577        self.zoomed_position = None;
 4578        cx.emit(Event::ZoomChanged);
 4579        self.update_active_view_for_followers(window, cx);
 4580        pane.update(cx, |pane, _| {
 4581            pane.track_alternate_file_items();
 4582        });
 4583
 4584        cx.notify();
 4585    }
 4586
 4587    fn set_active_pane(
 4588        &mut self,
 4589        pane: &Entity<Pane>,
 4590        window: &mut Window,
 4591        cx: &mut Context<Self>,
 4592    ) {
 4593        self.active_pane = pane.clone();
 4594        self.active_item_path_changed(true, window, cx);
 4595        self.last_active_center_pane = Some(pane.downgrade());
 4596    }
 4597
 4598    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4599        self.update_active_view_for_followers(window, cx);
 4600    }
 4601
 4602    fn handle_pane_event(
 4603        &mut self,
 4604        pane: &Entity<Pane>,
 4605        event: &pane::Event,
 4606        window: &mut Window,
 4607        cx: &mut Context<Self>,
 4608    ) {
 4609        let mut serialize_workspace = true;
 4610        match event {
 4611            pane::Event::AddItem { item } => {
 4612                item.added_to_pane(self, pane.clone(), window, cx);
 4613                cx.emit(Event::ItemAdded {
 4614                    item: item.boxed_clone(),
 4615                });
 4616            }
 4617            pane::Event::Split { direction, mode } => {
 4618                match mode {
 4619                    SplitMode::ClonePane => {
 4620                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4621                            .detach();
 4622                    }
 4623                    SplitMode::EmptyPane => {
 4624                        self.split_pane(pane.clone(), *direction, window, cx);
 4625                    }
 4626                    SplitMode::MovePane => {
 4627                        self.split_and_move(pane.clone(), *direction, window, cx);
 4628                    }
 4629                };
 4630            }
 4631            pane::Event::JoinIntoNext => {
 4632                self.join_pane_into_next(pane.clone(), window, cx);
 4633            }
 4634            pane::Event::JoinAll => {
 4635                self.join_all_panes(window, cx);
 4636            }
 4637            pane::Event::Remove { focus_on_pane } => {
 4638                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4639            }
 4640            pane::Event::ActivateItem {
 4641                local,
 4642                focus_changed,
 4643            } => {
 4644                window.invalidate_character_coordinates();
 4645
 4646                pane.update(cx, |pane, _| {
 4647                    pane.track_alternate_file_items();
 4648                });
 4649                if *local {
 4650                    self.unfollow_in_pane(pane, window, cx);
 4651                }
 4652                serialize_workspace = *focus_changed || pane != self.active_pane();
 4653                if pane == self.active_pane() {
 4654                    self.active_item_path_changed(*focus_changed, window, cx);
 4655                    self.update_active_view_for_followers(window, cx);
 4656                } else if *local {
 4657                    self.set_active_pane(pane, window, cx);
 4658                }
 4659            }
 4660            pane::Event::UserSavedItem { item, save_intent } => {
 4661                cx.emit(Event::UserSavedItem {
 4662                    pane: pane.downgrade(),
 4663                    item: item.boxed_clone(),
 4664                    save_intent: *save_intent,
 4665                });
 4666                serialize_workspace = false;
 4667            }
 4668            pane::Event::ChangeItemTitle => {
 4669                if *pane == self.active_pane {
 4670                    self.active_item_path_changed(false, window, cx);
 4671                }
 4672                serialize_workspace = false;
 4673            }
 4674            pane::Event::RemovedItem { item } => {
 4675                cx.emit(Event::ActiveItemChanged);
 4676                self.update_window_edited(window, cx);
 4677                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4678                    && entry.get().entity_id() == pane.entity_id()
 4679                {
 4680                    entry.remove();
 4681                }
 4682                cx.emit(Event::ItemRemoved {
 4683                    item_id: item.item_id(),
 4684                });
 4685            }
 4686            pane::Event::Focus => {
 4687                window.invalidate_character_coordinates();
 4688                self.handle_pane_focused(pane.clone(), window, cx);
 4689            }
 4690            pane::Event::ZoomIn => {
 4691                if *pane == self.active_pane {
 4692                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4693                    if pane.read(cx).has_focus(window, cx) {
 4694                        self.zoomed = Some(pane.downgrade().into());
 4695                        self.zoomed_position = None;
 4696                        cx.emit(Event::ZoomChanged);
 4697                    }
 4698                    cx.notify();
 4699                }
 4700            }
 4701            pane::Event::ZoomOut => {
 4702                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4703                if self.zoomed_position.is_none() {
 4704                    self.zoomed = None;
 4705                    cx.emit(Event::ZoomChanged);
 4706                }
 4707                cx.notify();
 4708            }
 4709            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4710        }
 4711
 4712        if serialize_workspace {
 4713            self.serialize_workspace(window, cx);
 4714        }
 4715    }
 4716
 4717    pub fn unfollow_in_pane(
 4718        &mut self,
 4719        pane: &Entity<Pane>,
 4720        window: &mut Window,
 4721        cx: &mut Context<Workspace>,
 4722    ) -> Option<CollaboratorId> {
 4723        let leader_id = self.leader_for_pane(pane)?;
 4724        self.unfollow(leader_id, window, cx);
 4725        Some(leader_id)
 4726    }
 4727
 4728    pub fn split_pane(
 4729        &mut self,
 4730        pane_to_split: Entity<Pane>,
 4731        split_direction: SplitDirection,
 4732        window: &mut Window,
 4733        cx: &mut Context<Self>,
 4734    ) -> Entity<Pane> {
 4735        let new_pane = self.add_pane(window, cx);
 4736        self.center
 4737            .split(&pane_to_split, &new_pane, split_direction, cx)
 4738            .unwrap();
 4739        cx.notify();
 4740        new_pane
 4741    }
 4742
 4743    pub fn split_and_move(
 4744        &mut self,
 4745        pane: Entity<Pane>,
 4746        direction: SplitDirection,
 4747        window: &mut Window,
 4748        cx: &mut Context<Self>,
 4749    ) {
 4750        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4751            return;
 4752        };
 4753        let new_pane = self.add_pane(window, cx);
 4754        new_pane.update(cx, |pane, cx| {
 4755            pane.add_item(item, true, true, None, window, cx)
 4756        });
 4757        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4758        cx.notify();
 4759    }
 4760
 4761    pub fn split_and_clone(
 4762        &mut self,
 4763        pane: Entity<Pane>,
 4764        direction: SplitDirection,
 4765        window: &mut Window,
 4766        cx: &mut Context<Self>,
 4767    ) -> Task<Option<Entity<Pane>>> {
 4768        let Some(item) = pane.read(cx).active_item() else {
 4769            return Task::ready(None);
 4770        };
 4771        if !item.can_split(cx) {
 4772            return Task::ready(None);
 4773        }
 4774        let task = item.clone_on_split(self.database_id(), window, cx);
 4775        cx.spawn_in(window, async move |this, cx| {
 4776            if let Some(clone) = task.await {
 4777                this.update_in(cx, |this, window, cx| {
 4778                    let new_pane = this.add_pane(window, cx);
 4779                    let nav_history = pane.read(cx).fork_nav_history();
 4780                    new_pane.update(cx, |pane, cx| {
 4781                        pane.set_nav_history(nav_history, cx);
 4782                        pane.add_item(clone, true, true, None, window, cx)
 4783                    });
 4784                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4785                    cx.notify();
 4786                    new_pane
 4787                })
 4788                .ok()
 4789            } else {
 4790                None
 4791            }
 4792        })
 4793    }
 4794
 4795    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4796        let active_item = self.active_pane.read(cx).active_item();
 4797        for pane in &self.panes {
 4798            join_pane_into_active(&self.active_pane, pane, window, cx);
 4799        }
 4800        if let Some(active_item) = active_item {
 4801            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4802        }
 4803        cx.notify();
 4804    }
 4805
 4806    pub fn join_pane_into_next(
 4807        &mut self,
 4808        pane: Entity<Pane>,
 4809        window: &mut Window,
 4810        cx: &mut Context<Self>,
 4811    ) {
 4812        let next_pane = self
 4813            .find_pane_in_direction(SplitDirection::Right, cx)
 4814            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4815            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4816            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4817        let Some(next_pane) = next_pane else {
 4818            return;
 4819        };
 4820        move_all_items(&pane, &next_pane, window, cx);
 4821        cx.notify();
 4822    }
 4823
 4824    fn remove_pane(
 4825        &mut self,
 4826        pane: Entity<Pane>,
 4827        focus_on: Option<Entity<Pane>>,
 4828        window: &mut Window,
 4829        cx: &mut Context<Self>,
 4830    ) {
 4831        if self.center.remove(&pane, cx).unwrap() {
 4832            self.force_remove_pane(&pane, &focus_on, window, cx);
 4833            self.unfollow_in_pane(&pane, window, cx);
 4834            self.last_leaders_by_pane.remove(&pane.downgrade());
 4835            for removed_item in pane.read(cx).items() {
 4836                self.panes_by_item.remove(&removed_item.item_id());
 4837            }
 4838
 4839            cx.notify();
 4840        } else {
 4841            self.active_item_path_changed(true, window, cx);
 4842        }
 4843        cx.emit(Event::PaneRemoved);
 4844    }
 4845
 4846    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4847        &mut self.panes
 4848    }
 4849
 4850    pub fn panes(&self) -> &[Entity<Pane>] {
 4851        &self.panes
 4852    }
 4853
 4854    pub fn active_pane(&self) -> &Entity<Pane> {
 4855        &self.active_pane
 4856    }
 4857
 4858    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4859        for dock in self.all_docks() {
 4860            if dock.focus_handle(cx).contains_focused(window, cx)
 4861                && let Some(pane) = dock
 4862                    .read(cx)
 4863                    .active_panel()
 4864                    .and_then(|panel| panel.pane(cx))
 4865            {
 4866                return pane;
 4867            }
 4868        }
 4869        self.active_pane().clone()
 4870    }
 4871
 4872    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4873        self.find_pane_in_direction(SplitDirection::Right, cx)
 4874            .unwrap_or_else(|| {
 4875                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4876            })
 4877    }
 4878
 4879    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4880        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4881        weak_pane.upgrade()
 4882    }
 4883
 4884    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4885        self.follower_states.retain(|leader_id, state| {
 4886            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4887                for item in state.items_by_leader_view_id.values() {
 4888                    item.view.set_leader_id(None, window, cx);
 4889                }
 4890                false
 4891            } else {
 4892                true
 4893            }
 4894        });
 4895        cx.notify();
 4896    }
 4897
 4898    pub fn start_following(
 4899        &mut self,
 4900        leader_id: impl Into<CollaboratorId>,
 4901        window: &mut Window,
 4902        cx: &mut Context<Self>,
 4903    ) -> Option<Task<Result<()>>> {
 4904        let leader_id = leader_id.into();
 4905        let pane = self.active_pane().clone();
 4906
 4907        self.last_leaders_by_pane
 4908            .insert(pane.downgrade(), leader_id);
 4909        self.unfollow(leader_id, window, cx);
 4910        self.unfollow_in_pane(&pane, window, cx);
 4911        self.follower_states.insert(
 4912            leader_id,
 4913            FollowerState {
 4914                center_pane: pane.clone(),
 4915                dock_pane: None,
 4916                active_view_id: None,
 4917                items_by_leader_view_id: Default::default(),
 4918            },
 4919        );
 4920        cx.notify();
 4921
 4922        match leader_id {
 4923            CollaboratorId::PeerId(leader_peer_id) => {
 4924                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4925                let project_id = self.project.read(cx).remote_id();
 4926                let request = self.app_state.client.request(proto::Follow {
 4927                    room_id,
 4928                    project_id,
 4929                    leader_id: Some(leader_peer_id),
 4930                });
 4931
 4932                Some(cx.spawn_in(window, async move |this, cx| {
 4933                    let response = request.await?;
 4934                    this.update(cx, |this, _| {
 4935                        let state = this
 4936                            .follower_states
 4937                            .get_mut(&leader_id)
 4938                            .context("following interrupted")?;
 4939                        state.active_view_id = response
 4940                            .active_view
 4941                            .as_ref()
 4942                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4943                        anyhow::Ok(())
 4944                    })??;
 4945                    if let Some(view) = response.active_view {
 4946                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4947                    }
 4948                    this.update_in(cx, |this, window, cx| {
 4949                        this.leader_updated(leader_id, window, cx)
 4950                    })?;
 4951                    Ok(())
 4952                }))
 4953            }
 4954            CollaboratorId::Agent => {
 4955                self.leader_updated(leader_id, window, cx)?;
 4956                Some(Task::ready(Ok(())))
 4957            }
 4958        }
 4959    }
 4960
 4961    pub fn follow_next_collaborator(
 4962        &mut self,
 4963        _: &FollowNextCollaborator,
 4964        window: &mut Window,
 4965        cx: &mut Context<Self>,
 4966    ) {
 4967        let collaborators = self.project.read(cx).collaborators();
 4968        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4969            let mut collaborators = collaborators.keys().copied();
 4970            for peer_id in collaborators.by_ref() {
 4971                if CollaboratorId::PeerId(peer_id) == leader_id {
 4972                    break;
 4973                }
 4974            }
 4975            collaborators.next().map(CollaboratorId::PeerId)
 4976        } else if let Some(last_leader_id) =
 4977            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4978        {
 4979            match last_leader_id {
 4980                CollaboratorId::PeerId(peer_id) => {
 4981                    if collaborators.contains_key(peer_id) {
 4982                        Some(*last_leader_id)
 4983                    } else {
 4984                        None
 4985                    }
 4986                }
 4987                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4988            }
 4989        } else {
 4990            None
 4991        };
 4992
 4993        let pane = self.active_pane.clone();
 4994        let Some(leader_id) = next_leader_id.or_else(|| {
 4995            Some(CollaboratorId::PeerId(
 4996                collaborators.keys().copied().next()?,
 4997            ))
 4998        }) else {
 4999            return;
 5000        };
 5001        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 5002            return;
 5003        }
 5004        if let Some(task) = self.start_following(leader_id, window, cx) {
 5005            task.detach_and_log_err(cx)
 5006        }
 5007    }
 5008
 5009    pub fn follow(
 5010        &mut self,
 5011        leader_id: impl Into<CollaboratorId>,
 5012        window: &mut Window,
 5013        cx: &mut Context<Self>,
 5014    ) {
 5015        let leader_id = leader_id.into();
 5016
 5017        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5018            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 5019                return;
 5020            };
 5021            let room = room.read(cx);
 5022            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 5023                return;
 5024            };
 5025
 5026            let project = self.project.read(cx);
 5027
 5028            let other_project_id = match remote_participant.location {
 5029                call::ParticipantLocation::External => None,
 5030                call::ParticipantLocation::UnsharedProject => None,
 5031                call::ParticipantLocation::SharedProject { project_id } => {
 5032                    if Some(project_id) == project.remote_id() {
 5033                        None
 5034                    } else {
 5035                        Some(project_id)
 5036                    }
 5037                }
 5038            };
 5039
 5040            // if they are active in another project, follow there.
 5041            if let Some(project_id) = other_project_id {
 5042                let app_state = self.app_state.clone();
 5043                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5044                    .detach_and_log_err(cx);
 5045            }
 5046        }
 5047
 5048        // if you're already following, find the right pane and focus it.
 5049        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5050            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5051
 5052            return;
 5053        }
 5054
 5055        // Otherwise, follow.
 5056        if let Some(task) = self.start_following(leader_id, window, cx) {
 5057            task.detach_and_log_err(cx)
 5058        }
 5059    }
 5060
 5061    pub fn unfollow(
 5062        &mut self,
 5063        leader_id: impl Into<CollaboratorId>,
 5064        window: &mut Window,
 5065        cx: &mut Context<Self>,
 5066    ) -> Option<()> {
 5067        cx.notify();
 5068
 5069        let leader_id = leader_id.into();
 5070        let state = self.follower_states.remove(&leader_id)?;
 5071        for (_, item) in state.items_by_leader_view_id {
 5072            item.view.set_leader_id(None, window, cx);
 5073        }
 5074
 5075        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5076            let project_id = self.project.read(cx).remote_id();
 5077            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 5078            self.app_state
 5079                .client
 5080                .send(proto::Unfollow {
 5081                    room_id,
 5082                    project_id,
 5083                    leader_id: Some(leader_peer_id),
 5084                })
 5085                .log_err();
 5086        }
 5087
 5088        Some(())
 5089    }
 5090
 5091    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5092        self.follower_states.contains_key(&id.into())
 5093    }
 5094
 5095    fn active_item_path_changed(
 5096        &mut self,
 5097        focus_changed: bool,
 5098        window: &mut Window,
 5099        cx: &mut Context<Self>,
 5100    ) {
 5101        cx.emit(Event::ActiveItemChanged);
 5102        let active_entry = self.active_project_path(cx);
 5103        self.project.update(cx, |project, cx| {
 5104            project.set_active_path(active_entry.clone(), cx)
 5105        });
 5106
 5107        if focus_changed && let Some(project_path) = &active_entry {
 5108            let git_store_entity = self.project.read(cx).git_store().clone();
 5109            git_store_entity.update(cx, |git_store, cx| {
 5110                git_store.set_active_repo_for_path(project_path, cx);
 5111            });
 5112        }
 5113
 5114        self.update_window_title(window, cx);
 5115    }
 5116
 5117    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5118        let project = self.project().read(cx);
 5119        let mut title = String::new();
 5120
 5121        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5122            let name = {
 5123                let settings_location = SettingsLocation {
 5124                    worktree_id: worktree.read(cx).id(),
 5125                    path: RelPath::empty(),
 5126                };
 5127
 5128                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5129                match &settings.project_name {
 5130                    Some(name) => name.as_str(),
 5131                    None => worktree.read(cx).root_name_str(),
 5132                }
 5133            };
 5134            if i > 0 {
 5135                title.push_str(", ");
 5136            }
 5137            title.push_str(name);
 5138        }
 5139
 5140        if title.is_empty() {
 5141            title = "empty project".to_string();
 5142        }
 5143
 5144        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5145            let filename = path.path.file_name().or_else(|| {
 5146                Some(
 5147                    project
 5148                        .worktree_for_id(path.worktree_id, cx)?
 5149                        .read(cx)
 5150                        .root_name_str(),
 5151                )
 5152            });
 5153
 5154            if let Some(filename) = filename {
 5155                title.push_str("");
 5156                title.push_str(filename.as_ref());
 5157            }
 5158        }
 5159
 5160        if project.is_via_collab() {
 5161            title.push_str("");
 5162        } else if project.is_shared() {
 5163            title.push_str("");
 5164        }
 5165
 5166        if let Some(last_title) = self.last_window_title.as_ref()
 5167            && &title == last_title
 5168        {
 5169            return;
 5170        }
 5171        window.set_window_title(&title);
 5172        SystemWindowTabController::update_tab_title(
 5173            cx,
 5174            window.window_handle().window_id(),
 5175            SharedString::from(&title),
 5176        );
 5177        self.last_window_title = Some(title);
 5178    }
 5179
 5180    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5181        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5182        if is_edited != self.window_edited {
 5183            self.window_edited = is_edited;
 5184            window.set_window_edited(self.window_edited)
 5185        }
 5186    }
 5187
 5188    fn update_item_dirty_state(
 5189        &mut self,
 5190        item: &dyn ItemHandle,
 5191        window: &mut Window,
 5192        cx: &mut App,
 5193    ) {
 5194        let is_dirty = item.is_dirty(cx);
 5195        let item_id = item.item_id();
 5196        let was_dirty = self.dirty_items.contains_key(&item_id);
 5197        if is_dirty == was_dirty {
 5198            return;
 5199        }
 5200        if was_dirty {
 5201            self.dirty_items.remove(&item_id);
 5202            self.update_window_edited(window, cx);
 5203            return;
 5204        }
 5205
 5206        let workspace = self.weak_handle();
 5207        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5208            return;
 5209        };
 5210        let on_release_callback = Box::new(move |cx: &mut App| {
 5211            window_handle
 5212                .update(cx, |_, window, cx| {
 5213                    workspace
 5214                        .update(cx, |workspace, cx| {
 5215                            workspace.dirty_items.remove(&item_id);
 5216                            workspace.update_window_edited(window, cx)
 5217                        })
 5218                        .ok();
 5219                })
 5220                .ok();
 5221        });
 5222
 5223        let s = item.on_release(cx, on_release_callback);
 5224        self.dirty_items.insert(item_id, s);
 5225        self.update_window_edited(window, cx);
 5226    }
 5227
 5228    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5229        if self.notifications.is_empty() {
 5230            None
 5231        } else {
 5232            Some(
 5233                div()
 5234                    .absolute()
 5235                    .right_3()
 5236                    .bottom_3()
 5237                    .w_112()
 5238                    .h_full()
 5239                    .flex()
 5240                    .flex_col()
 5241                    .justify_end()
 5242                    .gap_2()
 5243                    .children(
 5244                        self.notifications
 5245                            .iter()
 5246                            .map(|(_, notification)| notification.clone().into_any()),
 5247                    ),
 5248            )
 5249        }
 5250    }
 5251
 5252    // RPC handlers
 5253
 5254    fn active_view_for_follower(
 5255        &self,
 5256        follower_project_id: Option<u64>,
 5257        window: &mut Window,
 5258        cx: &mut Context<Self>,
 5259    ) -> Option<proto::View> {
 5260        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5261        let item = item?;
 5262        let leader_id = self
 5263            .pane_for(&*item)
 5264            .and_then(|pane| self.leader_for_pane(&pane));
 5265        let leader_peer_id = match leader_id {
 5266            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5267            Some(CollaboratorId::Agent) | None => None,
 5268        };
 5269
 5270        let item_handle = item.to_followable_item_handle(cx)?;
 5271        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5272        let variant = item_handle.to_state_proto(window, cx)?;
 5273
 5274        if item_handle.is_project_item(window, cx)
 5275            && (follower_project_id.is_none()
 5276                || follower_project_id != self.project.read(cx).remote_id())
 5277        {
 5278            return None;
 5279        }
 5280
 5281        Some(proto::View {
 5282            id: id.to_proto(),
 5283            leader_id: leader_peer_id,
 5284            variant: Some(variant),
 5285            panel_id: panel_id.map(|id| id as i32),
 5286        })
 5287    }
 5288
 5289    fn handle_follow(
 5290        &mut self,
 5291        follower_project_id: Option<u64>,
 5292        window: &mut Window,
 5293        cx: &mut Context<Self>,
 5294    ) -> proto::FollowResponse {
 5295        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5296
 5297        cx.notify();
 5298        proto::FollowResponse {
 5299            views: active_view.iter().cloned().collect(),
 5300            active_view,
 5301        }
 5302    }
 5303
 5304    fn handle_update_followers(
 5305        &mut self,
 5306        leader_id: PeerId,
 5307        message: proto::UpdateFollowers,
 5308        _window: &mut Window,
 5309        _cx: &mut Context<Self>,
 5310    ) {
 5311        self.leader_updates_tx
 5312            .unbounded_send((leader_id, message))
 5313            .ok();
 5314    }
 5315
 5316    async fn process_leader_update(
 5317        this: &WeakEntity<Self>,
 5318        leader_id: PeerId,
 5319        update: proto::UpdateFollowers,
 5320        cx: &mut AsyncWindowContext,
 5321    ) -> Result<()> {
 5322        match update.variant.context("invalid update")? {
 5323            proto::update_followers::Variant::CreateView(view) => {
 5324                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5325                let should_add_view = this.update(cx, |this, _| {
 5326                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5327                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5328                    } else {
 5329                        anyhow::Ok(false)
 5330                    }
 5331                })??;
 5332
 5333                if should_add_view {
 5334                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5335                }
 5336            }
 5337            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5338                let should_add_view = this.update(cx, |this, _| {
 5339                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5340                        state.active_view_id = update_active_view
 5341                            .view
 5342                            .as_ref()
 5343                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5344
 5345                        if state.active_view_id.is_some_and(|view_id| {
 5346                            !state.items_by_leader_view_id.contains_key(&view_id)
 5347                        }) {
 5348                            anyhow::Ok(true)
 5349                        } else {
 5350                            anyhow::Ok(false)
 5351                        }
 5352                    } else {
 5353                        anyhow::Ok(false)
 5354                    }
 5355                })??;
 5356
 5357                if should_add_view && let Some(view) = update_active_view.view {
 5358                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5359                }
 5360            }
 5361            proto::update_followers::Variant::UpdateView(update_view) => {
 5362                let variant = update_view.variant.context("missing update view variant")?;
 5363                let id = update_view.id.context("missing update view id")?;
 5364                let mut tasks = Vec::new();
 5365                this.update_in(cx, |this, window, cx| {
 5366                    let project = this.project.clone();
 5367                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5368                        let view_id = ViewId::from_proto(id.clone())?;
 5369                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5370                            tasks.push(item.view.apply_update_proto(
 5371                                &project,
 5372                                variant.clone(),
 5373                                window,
 5374                                cx,
 5375                            ));
 5376                        }
 5377                    }
 5378                    anyhow::Ok(())
 5379                })??;
 5380                try_join_all(tasks).await.log_err();
 5381            }
 5382        }
 5383        this.update_in(cx, |this, window, cx| {
 5384            this.leader_updated(leader_id, window, cx)
 5385        })?;
 5386        Ok(())
 5387    }
 5388
 5389    async fn add_view_from_leader(
 5390        this: WeakEntity<Self>,
 5391        leader_id: PeerId,
 5392        view: &proto::View,
 5393        cx: &mut AsyncWindowContext,
 5394    ) -> Result<()> {
 5395        let this = this.upgrade().context("workspace dropped")?;
 5396
 5397        let Some(id) = view.id.clone() else {
 5398            anyhow::bail!("no id for view");
 5399        };
 5400        let id = ViewId::from_proto(id)?;
 5401        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5402
 5403        let pane = this.update(cx, |this, _cx| {
 5404            let state = this
 5405                .follower_states
 5406                .get(&leader_id.into())
 5407                .context("stopped following")?;
 5408            anyhow::Ok(state.pane().clone())
 5409        })?;
 5410        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5411            let client = this.read(cx).client().clone();
 5412            pane.items().find_map(|item| {
 5413                let item = item.to_followable_item_handle(cx)?;
 5414                if item.remote_id(&client, window, cx) == Some(id) {
 5415                    Some(item)
 5416                } else {
 5417                    None
 5418                }
 5419            })
 5420        })?;
 5421        let item = if let Some(existing_item) = existing_item {
 5422            existing_item
 5423        } else {
 5424            let variant = view.variant.clone();
 5425            anyhow::ensure!(variant.is_some(), "missing view variant");
 5426
 5427            let task = cx.update(|window, cx| {
 5428                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5429            })?;
 5430
 5431            let Some(task) = task else {
 5432                anyhow::bail!(
 5433                    "failed to construct view from leader (maybe from a different version of zed?)"
 5434                );
 5435            };
 5436
 5437            let mut new_item = task.await?;
 5438            pane.update_in(cx, |pane, window, cx| {
 5439                let mut item_to_remove = None;
 5440                for (ix, item) in pane.items().enumerate() {
 5441                    if let Some(item) = item.to_followable_item_handle(cx) {
 5442                        match new_item.dedup(item.as_ref(), window, cx) {
 5443                            Some(item::Dedup::KeepExisting) => {
 5444                                new_item =
 5445                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5446                                break;
 5447                            }
 5448                            Some(item::Dedup::ReplaceExisting) => {
 5449                                item_to_remove = Some((ix, item.item_id()));
 5450                                break;
 5451                            }
 5452                            None => {}
 5453                        }
 5454                    }
 5455                }
 5456
 5457                if let Some((ix, id)) = item_to_remove {
 5458                    pane.remove_item(id, false, false, window, cx);
 5459                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5460                }
 5461            })?;
 5462
 5463            new_item
 5464        };
 5465
 5466        this.update_in(cx, |this, window, cx| {
 5467            let state = this.follower_states.get_mut(&leader_id.into())?;
 5468            item.set_leader_id(Some(leader_id.into()), window, cx);
 5469            state.items_by_leader_view_id.insert(
 5470                id,
 5471                FollowerView {
 5472                    view: item,
 5473                    location: panel_id,
 5474                },
 5475            );
 5476
 5477            Some(())
 5478        })
 5479        .context("no follower state")?;
 5480
 5481        Ok(())
 5482    }
 5483
 5484    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5485        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5486            return;
 5487        };
 5488
 5489        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5490            let buffer_entity_id = agent_location.buffer.entity_id();
 5491            let view_id = ViewId {
 5492                creator: CollaboratorId::Agent,
 5493                id: buffer_entity_id.as_u64(),
 5494            };
 5495            follower_state.active_view_id = Some(view_id);
 5496
 5497            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5498                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5499                hash_map::Entry::Vacant(entry) => {
 5500                    let existing_view =
 5501                        follower_state
 5502                            .center_pane
 5503                            .read(cx)
 5504                            .items()
 5505                            .find_map(|item| {
 5506                                let item = item.to_followable_item_handle(cx)?;
 5507                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5508                                    && item.project_item_model_ids(cx).as_slice()
 5509                                        == [buffer_entity_id]
 5510                                {
 5511                                    Some(item)
 5512                                } else {
 5513                                    None
 5514                                }
 5515                            });
 5516                    let view = existing_view.or_else(|| {
 5517                        agent_location.buffer.upgrade().and_then(|buffer| {
 5518                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5519                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5520                            })?
 5521                            .to_followable_item_handle(cx)
 5522                        })
 5523                    });
 5524
 5525                    view.map(|view| {
 5526                        entry.insert(FollowerView {
 5527                            view,
 5528                            location: None,
 5529                        })
 5530                    })
 5531                }
 5532            };
 5533
 5534            if let Some(item) = item {
 5535                item.view
 5536                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5537                item.view
 5538                    .update_agent_location(agent_location.position, window, cx);
 5539            }
 5540        } else {
 5541            follower_state.active_view_id = None;
 5542        }
 5543
 5544        self.leader_updated(CollaboratorId::Agent, window, cx);
 5545    }
 5546
 5547    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5548        let mut is_project_item = true;
 5549        let mut update = proto::UpdateActiveView::default();
 5550        if window.is_window_active() {
 5551            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5552
 5553            if let Some(item) = active_item
 5554                && item.item_focus_handle(cx).contains_focused(window, cx)
 5555            {
 5556                let leader_id = self
 5557                    .pane_for(&*item)
 5558                    .and_then(|pane| self.leader_for_pane(&pane));
 5559                let leader_peer_id = match leader_id {
 5560                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5561                    Some(CollaboratorId::Agent) | None => None,
 5562                };
 5563
 5564                if let Some(item) = item.to_followable_item_handle(cx) {
 5565                    let id = item
 5566                        .remote_id(&self.app_state.client, window, cx)
 5567                        .map(|id| id.to_proto());
 5568
 5569                    if let Some(id) = id
 5570                        && let Some(variant) = item.to_state_proto(window, cx)
 5571                    {
 5572                        let view = Some(proto::View {
 5573                            id,
 5574                            leader_id: leader_peer_id,
 5575                            variant: Some(variant),
 5576                            panel_id: panel_id.map(|id| id as i32),
 5577                        });
 5578
 5579                        is_project_item = item.is_project_item(window, cx);
 5580                        update = proto::UpdateActiveView { view };
 5581                    };
 5582                }
 5583            }
 5584        }
 5585
 5586        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5587        if active_view_id != self.last_active_view_id.as_ref() {
 5588            self.last_active_view_id = active_view_id.cloned();
 5589            self.update_followers(
 5590                is_project_item,
 5591                proto::update_followers::Variant::UpdateActiveView(update),
 5592                window,
 5593                cx,
 5594            );
 5595        }
 5596    }
 5597
 5598    fn active_item_for_followers(
 5599        &self,
 5600        window: &mut Window,
 5601        cx: &mut App,
 5602    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5603        let mut active_item = None;
 5604        let mut panel_id = None;
 5605        for dock in self.all_docks() {
 5606            if dock.focus_handle(cx).contains_focused(window, cx)
 5607                && let Some(panel) = dock.read(cx).active_panel()
 5608                && let Some(pane) = panel.pane(cx)
 5609                && let Some(item) = pane.read(cx).active_item()
 5610            {
 5611                active_item = Some(item);
 5612                panel_id = panel.remote_id();
 5613                break;
 5614            }
 5615        }
 5616
 5617        if active_item.is_none() {
 5618            active_item = self.active_pane().read(cx).active_item();
 5619        }
 5620        (active_item, panel_id)
 5621    }
 5622
 5623    fn update_followers(
 5624        &self,
 5625        project_only: bool,
 5626        update: proto::update_followers::Variant,
 5627        _: &mut Window,
 5628        cx: &mut App,
 5629    ) -> Option<()> {
 5630        // If this update only applies to for followers in the current project,
 5631        // then skip it unless this project is shared. If it applies to all
 5632        // followers, regardless of project, then set `project_id` to none,
 5633        // indicating that it goes to all followers.
 5634        let project_id = if project_only {
 5635            Some(self.project.read(cx).remote_id()?)
 5636        } else {
 5637            None
 5638        };
 5639        self.app_state().workspace_store.update(cx, |store, cx| {
 5640            store.update_followers(project_id, update, cx)
 5641        })
 5642    }
 5643
 5644    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5645        self.follower_states.iter().find_map(|(leader_id, state)| {
 5646            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5647                Some(*leader_id)
 5648            } else {
 5649                None
 5650            }
 5651        })
 5652    }
 5653
 5654    fn leader_updated(
 5655        &mut self,
 5656        leader_id: impl Into<CollaboratorId>,
 5657        window: &mut Window,
 5658        cx: &mut Context<Self>,
 5659    ) -> Option<Box<dyn ItemHandle>> {
 5660        cx.notify();
 5661
 5662        let leader_id = leader_id.into();
 5663        let (panel_id, item) = match leader_id {
 5664            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5665            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5666        };
 5667
 5668        let state = self.follower_states.get(&leader_id)?;
 5669        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5670        let pane;
 5671        if let Some(panel_id) = panel_id {
 5672            pane = self
 5673                .activate_panel_for_proto_id(panel_id, window, cx)?
 5674                .pane(cx)?;
 5675            let state = self.follower_states.get_mut(&leader_id)?;
 5676            state.dock_pane = Some(pane.clone());
 5677        } else {
 5678            pane = state.center_pane.clone();
 5679            let state = self.follower_states.get_mut(&leader_id)?;
 5680            if let Some(dock_pane) = state.dock_pane.take() {
 5681                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5682            }
 5683        }
 5684
 5685        pane.update(cx, |pane, cx| {
 5686            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5687            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5688                pane.activate_item(index, false, false, window, cx);
 5689            } else {
 5690                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5691            }
 5692
 5693            if focus_active_item {
 5694                pane.focus_active_item(window, cx)
 5695            }
 5696        });
 5697
 5698        Some(item)
 5699    }
 5700
 5701    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5702        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5703        let active_view_id = state.active_view_id?;
 5704        Some(
 5705            state
 5706                .items_by_leader_view_id
 5707                .get(&active_view_id)?
 5708                .view
 5709                .boxed_clone(),
 5710        )
 5711    }
 5712
 5713    fn active_item_for_peer(
 5714        &self,
 5715        peer_id: PeerId,
 5716        window: &mut Window,
 5717        cx: &mut Context<Self>,
 5718    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5719        let call = self.active_call()?;
 5720        let room = call.read(cx).room()?.read(cx);
 5721        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5722        let leader_in_this_app;
 5723        let leader_in_this_project;
 5724        match participant.location {
 5725            call::ParticipantLocation::SharedProject { project_id } => {
 5726                leader_in_this_app = true;
 5727                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5728            }
 5729            call::ParticipantLocation::UnsharedProject => {
 5730                leader_in_this_app = true;
 5731                leader_in_this_project = false;
 5732            }
 5733            call::ParticipantLocation::External => {
 5734                leader_in_this_app = false;
 5735                leader_in_this_project = false;
 5736            }
 5737        };
 5738        let state = self.follower_states.get(&peer_id.into())?;
 5739        let mut item_to_activate = None;
 5740        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5741            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5742                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5743            {
 5744                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5745            }
 5746        } else if let Some(shared_screen) =
 5747            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5748        {
 5749            item_to_activate = Some((None, Box::new(shared_screen)));
 5750        }
 5751        item_to_activate
 5752    }
 5753
 5754    fn shared_screen_for_peer(
 5755        &self,
 5756        peer_id: PeerId,
 5757        pane: &Entity<Pane>,
 5758        window: &mut Window,
 5759        cx: &mut App,
 5760    ) -> Option<Entity<SharedScreen>> {
 5761        let call = self.active_call()?;
 5762        let room = call.read(cx).room()?.clone();
 5763        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5764        let track = participant.video_tracks.values().next()?.clone();
 5765        let user = participant.user.clone();
 5766
 5767        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5768            if item.read(cx).peer_id == peer_id {
 5769                return Some(item);
 5770            }
 5771        }
 5772
 5773        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5774    }
 5775
 5776    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5777        if window.is_window_active() {
 5778            self.update_active_view_for_followers(window, cx);
 5779
 5780            if let Some(database_id) = self.database_id {
 5781                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5782                    .detach();
 5783            }
 5784        } else {
 5785            for pane in &self.panes {
 5786                pane.update(cx, |pane, cx| {
 5787                    if let Some(item) = pane.active_item() {
 5788                        item.workspace_deactivated(window, cx);
 5789                    }
 5790                    for item in pane.items() {
 5791                        if matches!(
 5792                            item.workspace_settings(cx).autosave,
 5793                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5794                        ) {
 5795                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5796                                .detach_and_log_err(cx);
 5797                        }
 5798                    }
 5799                });
 5800            }
 5801        }
 5802    }
 5803
 5804    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5805        self.active_call.as_ref().map(|(call, _)| call)
 5806    }
 5807
 5808    fn on_active_call_event(
 5809        &mut self,
 5810        _: &Entity<ActiveCall>,
 5811        event: &call::room::Event,
 5812        window: &mut Window,
 5813        cx: &mut Context<Self>,
 5814    ) {
 5815        match event {
 5816            call::room::Event::ParticipantLocationChanged { participant_id }
 5817            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5818                self.leader_updated(participant_id, window, cx);
 5819            }
 5820            _ => {}
 5821        }
 5822    }
 5823
 5824    pub fn database_id(&self) -> Option<WorkspaceId> {
 5825        self.database_id
 5826    }
 5827
 5828    pub(crate) fn set_database_id(&mut self, id: WorkspaceId) {
 5829        self.database_id = Some(id);
 5830    }
 5831
 5832    pub fn session_id(&self) -> Option<String> {
 5833        self.session_id.clone()
 5834    }
 5835
 5836    /// Bypass the 200ms serialization throttle and write workspace state to
 5837    /// the DB immediately. Returns a task the caller can await to ensure the
 5838    /// write completes. Used by the quit handler so the most recent state
 5839    /// isn't lost to a pending throttle timer when the process exits.
 5840    pub fn flush_serialization(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5841        self._schedule_serialize_workspace.take();
 5842        self._serialize_workspace_task.take();
 5843        self.serialize_workspace_internal(window, cx)
 5844    }
 5845
 5846    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5847        let project = self.project().read(cx);
 5848        project
 5849            .visible_worktrees(cx)
 5850            .map(|worktree| worktree.read(cx).abs_path())
 5851            .collect::<Vec<_>>()
 5852    }
 5853
 5854    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5855        match member {
 5856            Member::Axis(PaneAxis { members, .. }) => {
 5857                for child in members.iter() {
 5858                    self.remove_panes(child.clone(), window, cx)
 5859                }
 5860            }
 5861            Member::Pane(pane) => {
 5862                self.force_remove_pane(&pane, &None, window, cx);
 5863            }
 5864        }
 5865    }
 5866
 5867    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5868        self.session_id.take();
 5869        self.serialize_workspace_internal(window, cx)
 5870    }
 5871
 5872    fn force_remove_pane(
 5873        &mut self,
 5874        pane: &Entity<Pane>,
 5875        focus_on: &Option<Entity<Pane>>,
 5876        window: &mut Window,
 5877        cx: &mut Context<Workspace>,
 5878    ) {
 5879        self.panes.retain(|p| p != pane);
 5880        if let Some(focus_on) = focus_on {
 5881            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5882        } else if self.active_pane() == pane {
 5883            self.panes
 5884                .last()
 5885                .unwrap()
 5886                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5887        }
 5888        if self.last_active_center_pane == Some(pane.downgrade()) {
 5889            self.last_active_center_pane = None;
 5890        }
 5891        cx.notify();
 5892    }
 5893
 5894    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5895        if self._schedule_serialize_workspace.is_none() {
 5896            self._schedule_serialize_workspace =
 5897                Some(cx.spawn_in(window, async move |this, cx| {
 5898                    cx.background_executor()
 5899                        .timer(SERIALIZATION_THROTTLE_TIME)
 5900                        .await;
 5901                    this.update_in(cx, |this, window, cx| {
 5902                        this._serialize_workspace_task =
 5903                            Some(this.serialize_workspace_internal(window, cx));
 5904                        this._schedule_serialize_workspace.take();
 5905                    })
 5906                    .log_err();
 5907                }));
 5908        }
 5909    }
 5910
 5911    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5912        let Some(database_id) = self.database_id() else {
 5913            return Task::ready(());
 5914        };
 5915
 5916        fn serialize_pane_handle(
 5917            pane_handle: &Entity<Pane>,
 5918            window: &mut Window,
 5919            cx: &mut App,
 5920        ) -> SerializedPane {
 5921            let (items, active, pinned_count) = {
 5922                let pane = pane_handle.read(cx);
 5923                let active_item_id = pane.active_item().map(|item| item.item_id());
 5924                (
 5925                    pane.items()
 5926                        .filter_map(|handle| {
 5927                            let handle = handle.to_serializable_item_handle(cx)?;
 5928
 5929                            Some(SerializedItem {
 5930                                kind: Arc::from(handle.serialized_item_kind()),
 5931                                item_id: handle.item_id().as_u64(),
 5932                                active: Some(handle.item_id()) == active_item_id,
 5933                                preview: pane.is_active_preview_item(handle.item_id()),
 5934                            })
 5935                        })
 5936                        .collect::<Vec<_>>(),
 5937                    pane.has_focus(window, cx),
 5938                    pane.pinned_count(),
 5939                )
 5940            };
 5941
 5942            SerializedPane::new(items, active, pinned_count)
 5943        }
 5944
 5945        fn build_serialized_pane_group(
 5946            pane_group: &Member,
 5947            window: &mut Window,
 5948            cx: &mut App,
 5949        ) -> SerializedPaneGroup {
 5950            match pane_group {
 5951                Member::Axis(PaneAxis {
 5952                    axis,
 5953                    members,
 5954                    flexes,
 5955                    bounding_boxes: _,
 5956                }) => SerializedPaneGroup::Group {
 5957                    axis: SerializedAxis(*axis),
 5958                    children: members
 5959                        .iter()
 5960                        .map(|member| build_serialized_pane_group(member, window, cx))
 5961                        .collect::<Vec<_>>(),
 5962                    flexes: Some(flexes.lock().clone()),
 5963                },
 5964                Member::Pane(pane_handle) => {
 5965                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5966                }
 5967            }
 5968        }
 5969
 5970        fn build_serialized_docks(
 5971            this: &Workspace,
 5972            window: &mut Window,
 5973            cx: &mut App,
 5974        ) -> DockStructure {
 5975            let left_dock = this.left_dock.read(cx);
 5976            let left_visible = left_dock.is_open();
 5977            let left_active_panel = left_dock
 5978                .active_panel()
 5979                .map(|panel| panel.persistent_name().to_string());
 5980            let left_dock_zoom = left_dock
 5981                .active_panel()
 5982                .map(|panel| panel.is_zoomed(window, cx))
 5983                .unwrap_or(false);
 5984
 5985            let right_dock = this.right_dock.read(cx);
 5986            let right_visible = right_dock.is_open();
 5987            let right_active_panel = right_dock
 5988                .active_panel()
 5989                .map(|panel| panel.persistent_name().to_string());
 5990            let right_dock_zoom = right_dock
 5991                .active_panel()
 5992                .map(|panel| panel.is_zoomed(window, cx))
 5993                .unwrap_or(false);
 5994
 5995            let bottom_dock = this.bottom_dock.read(cx);
 5996            let bottom_visible = bottom_dock.is_open();
 5997            let bottom_active_panel = bottom_dock
 5998                .active_panel()
 5999                .map(|panel| panel.persistent_name().to_string());
 6000            let bottom_dock_zoom = bottom_dock
 6001                .active_panel()
 6002                .map(|panel| panel.is_zoomed(window, cx))
 6003                .unwrap_or(false);
 6004
 6005            DockStructure {
 6006                left: DockData {
 6007                    visible: left_visible,
 6008                    active_panel: left_active_panel,
 6009                    zoom: left_dock_zoom,
 6010                },
 6011                right: DockData {
 6012                    visible: right_visible,
 6013                    active_panel: right_active_panel,
 6014                    zoom: right_dock_zoom,
 6015                },
 6016                bottom: DockData {
 6017                    visible: bottom_visible,
 6018                    active_panel: bottom_active_panel,
 6019                    zoom: bottom_dock_zoom,
 6020                },
 6021            }
 6022        }
 6023
 6024        match self.workspace_location(cx) {
 6025            WorkspaceLocation::Location(location, paths) => {
 6026                let breakpoints = self.project.update(cx, |project, cx| {
 6027                    project
 6028                        .breakpoint_store()
 6029                        .read(cx)
 6030                        .all_source_breakpoints(cx)
 6031                });
 6032                let user_toolchains = self
 6033                    .project
 6034                    .read(cx)
 6035                    .user_toolchains(cx)
 6036                    .unwrap_or_default();
 6037
 6038                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6039                let docks = build_serialized_docks(self, window, cx);
 6040                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6041
 6042                let serialized_workspace = SerializedWorkspace {
 6043                    id: database_id,
 6044                    location,
 6045                    paths,
 6046                    center_group,
 6047                    window_bounds,
 6048                    display: Default::default(),
 6049                    docks,
 6050                    centered_layout: self.centered_layout,
 6051                    session_id: self.session_id.clone(),
 6052                    breakpoints,
 6053                    window_id: Some(window.window_handle().window_id().as_u64()),
 6054                    user_toolchains,
 6055                };
 6056
 6057                window.spawn(cx, async move |_| {
 6058                    persistence::DB.save_workspace(serialized_workspace).await;
 6059                })
 6060            }
 6061            WorkspaceLocation::DetachFromSession => {
 6062                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6063                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6064                // Save dock state for empty local workspaces
 6065                let docks = build_serialized_docks(self, window, cx);
 6066                window.spawn(cx, async move |_| {
 6067                    persistence::DB
 6068                        .set_window_open_status(
 6069                            database_id,
 6070                            window_bounds,
 6071                            display.unwrap_or_default(),
 6072                        )
 6073                        .await
 6074                        .log_err();
 6075                    persistence::DB
 6076                        .set_session_id(database_id, None)
 6077                        .await
 6078                        .log_err();
 6079                    persistence::write_default_dock_state(docks).await.log_err();
 6080                })
 6081            }
 6082            WorkspaceLocation::None => {
 6083                // Save dock state for empty non-local workspaces
 6084                let docks = build_serialized_docks(self, window, cx);
 6085                window.spawn(cx, async move |_| {
 6086                    persistence::write_default_dock_state(docks).await.log_err();
 6087                })
 6088            }
 6089        }
 6090    }
 6091
 6092    fn has_any_items_open(&self, cx: &App) -> bool {
 6093        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6094    }
 6095
 6096    fn workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6097        let paths = PathList::new(&self.root_paths(cx));
 6098        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6099            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6100        } else if self.project.read(cx).is_local() {
 6101            if !paths.is_empty() || self.has_any_items_open(cx) {
 6102                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6103            } else {
 6104                WorkspaceLocation::DetachFromSession
 6105            }
 6106        } else {
 6107            WorkspaceLocation::None
 6108        }
 6109    }
 6110
 6111    fn update_history(&self, cx: &mut App) {
 6112        let Some(id) = self.database_id() else {
 6113            return;
 6114        };
 6115        if !self.project.read(cx).is_local() {
 6116            return;
 6117        }
 6118        if let Some(manager) = HistoryManager::global(cx) {
 6119            let paths = PathList::new(&self.root_paths(cx));
 6120            manager.update(cx, |this, cx| {
 6121                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6122            });
 6123        }
 6124    }
 6125
 6126    async fn serialize_items(
 6127        this: &WeakEntity<Self>,
 6128        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6129        cx: &mut AsyncWindowContext,
 6130    ) -> Result<()> {
 6131        const CHUNK_SIZE: usize = 200;
 6132
 6133        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6134
 6135        while let Some(items_received) = serializable_items.next().await {
 6136            let unique_items =
 6137                items_received
 6138                    .into_iter()
 6139                    .fold(HashMap::default(), |mut acc, item| {
 6140                        acc.entry(item.item_id()).or_insert(item);
 6141                        acc
 6142                    });
 6143
 6144            // We use into_iter() here so that the references to the items are moved into
 6145            // the tasks and not kept alive while we're sleeping.
 6146            for (_, item) in unique_items.into_iter() {
 6147                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6148                    item.serialize(workspace, false, window, cx)
 6149                }) {
 6150                    cx.background_spawn(async move { task.await.log_err() })
 6151                        .detach();
 6152                }
 6153            }
 6154
 6155            cx.background_executor()
 6156                .timer(SERIALIZATION_THROTTLE_TIME)
 6157                .await;
 6158        }
 6159
 6160        Ok(())
 6161    }
 6162
 6163    pub(crate) fn enqueue_item_serialization(
 6164        &mut self,
 6165        item: Box<dyn SerializableItemHandle>,
 6166    ) -> Result<()> {
 6167        self.serializable_items_tx
 6168            .unbounded_send(item)
 6169            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6170    }
 6171
 6172    pub(crate) fn load_workspace(
 6173        serialized_workspace: SerializedWorkspace,
 6174        paths_to_open: Vec<Option<ProjectPath>>,
 6175        window: &mut Window,
 6176        cx: &mut Context<Workspace>,
 6177    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6178        cx.spawn_in(window, async move |workspace, cx| {
 6179            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6180
 6181            let mut center_group = None;
 6182            let mut center_items = None;
 6183
 6184            // Traverse the splits tree and add to things
 6185            if let Some((group, active_pane, items)) = serialized_workspace
 6186                .center_group
 6187                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6188                .await
 6189            {
 6190                center_items = Some(items);
 6191                center_group = Some((group, active_pane))
 6192            }
 6193
 6194            let mut items_by_project_path = HashMap::default();
 6195            let mut item_ids_by_kind = HashMap::default();
 6196            let mut all_deserialized_items = Vec::default();
 6197            cx.update(|_, cx| {
 6198                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6199                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6200                        item_ids_by_kind
 6201                            .entry(serializable_item_handle.serialized_item_kind())
 6202                            .or_insert(Vec::new())
 6203                            .push(item.item_id().as_u64() as ItemId);
 6204                    }
 6205
 6206                    if let Some(project_path) = item.project_path(cx) {
 6207                        items_by_project_path.insert(project_path, item.clone());
 6208                    }
 6209                    all_deserialized_items.push(item);
 6210                }
 6211            })?;
 6212
 6213            let opened_items = paths_to_open
 6214                .into_iter()
 6215                .map(|path_to_open| {
 6216                    path_to_open
 6217                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6218                })
 6219                .collect::<Vec<_>>();
 6220
 6221            // Remove old panes from workspace panes list
 6222            workspace.update_in(cx, |workspace, window, cx| {
 6223                if let Some((center_group, active_pane)) = center_group {
 6224                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6225
 6226                    // Swap workspace center group
 6227                    workspace.center = PaneGroup::with_root(center_group);
 6228                    workspace.center.set_is_center(true);
 6229                    workspace.center.mark_positions(cx);
 6230
 6231                    if let Some(active_pane) = active_pane {
 6232                        workspace.set_active_pane(&active_pane, window, cx);
 6233                        cx.focus_self(window);
 6234                    } else {
 6235                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6236                    }
 6237                }
 6238
 6239                let docks = serialized_workspace.docks;
 6240
 6241                for (dock, serialized_dock) in [
 6242                    (&mut workspace.right_dock, docks.right),
 6243                    (&mut workspace.left_dock, docks.left),
 6244                    (&mut workspace.bottom_dock, docks.bottom),
 6245                ]
 6246                .iter_mut()
 6247                {
 6248                    dock.update(cx, |dock, cx| {
 6249                        dock.serialized_dock = Some(serialized_dock.clone());
 6250                        dock.restore_state(window, cx);
 6251                    });
 6252                }
 6253
 6254                cx.notify();
 6255            })?;
 6256
 6257            let _ = project
 6258                .update(cx, |project, cx| {
 6259                    project
 6260                        .breakpoint_store()
 6261                        .update(cx, |breakpoint_store, cx| {
 6262                            breakpoint_store
 6263                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6264                        })
 6265                })
 6266                .await;
 6267
 6268            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6269            // after loading the items, we might have different items and in order to avoid
 6270            // the database filling up, we delete items that haven't been loaded now.
 6271            //
 6272            // The items that have been loaded, have been saved after they've been added to the workspace.
 6273            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6274                item_ids_by_kind
 6275                    .into_iter()
 6276                    .map(|(item_kind, loaded_items)| {
 6277                        SerializableItemRegistry::cleanup(
 6278                            item_kind,
 6279                            serialized_workspace.id,
 6280                            loaded_items,
 6281                            window,
 6282                            cx,
 6283                        )
 6284                        .log_err()
 6285                    })
 6286                    .collect::<Vec<_>>()
 6287            })?;
 6288
 6289            futures::future::join_all(clean_up_tasks).await;
 6290
 6291            workspace
 6292                .update_in(cx, |workspace, window, cx| {
 6293                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6294                    workspace.serialize_workspace_internal(window, cx).detach();
 6295
 6296                    // Ensure that we mark the window as edited if we did load dirty items
 6297                    workspace.update_window_edited(window, cx);
 6298                })
 6299                .ok();
 6300
 6301            Ok(opened_items)
 6302        })
 6303    }
 6304
 6305    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6306        self.add_workspace_actions_listeners(div, window, cx)
 6307            .on_action(cx.listener(
 6308                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6309                    for action in &action_sequence.0 {
 6310                        window.dispatch_action(action.boxed_clone(), cx);
 6311                    }
 6312                },
 6313            ))
 6314            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6315            .on_action(cx.listener(Self::close_all_items_and_panes))
 6316            .on_action(cx.listener(Self::close_item_in_all_panes))
 6317            .on_action(cx.listener(Self::save_all))
 6318            .on_action(cx.listener(Self::send_keystrokes))
 6319            .on_action(cx.listener(Self::add_folder_to_project))
 6320            .on_action(cx.listener(Self::follow_next_collaborator))
 6321            .on_action(cx.listener(Self::close_window))
 6322            .on_action(cx.listener(Self::activate_pane_at_index))
 6323            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6324            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6325            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6326            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6327                let pane = workspace.active_pane().clone();
 6328                workspace.unfollow_in_pane(&pane, window, cx);
 6329            }))
 6330            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6331                workspace
 6332                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6333                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6334            }))
 6335            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6336                workspace
 6337                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6338                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6339            }))
 6340            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6341                workspace
 6342                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6343                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6344            }))
 6345            .on_action(
 6346                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6347                    workspace.activate_previous_pane(window, cx)
 6348                }),
 6349            )
 6350            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6351                workspace.activate_next_pane(window, cx)
 6352            }))
 6353            .on_action(
 6354                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6355                    workspace.activate_next_window(cx)
 6356                }),
 6357            )
 6358            .on_action(
 6359                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6360                    workspace.activate_previous_window(cx)
 6361                }),
 6362            )
 6363            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6364                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6365            }))
 6366            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6367                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6368            }))
 6369            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6370                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6371            }))
 6372            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6373                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6374            }))
 6375            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6376                workspace.activate_next_pane(window, cx)
 6377            }))
 6378            .on_action(cx.listener(
 6379                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6380                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6381                },
 6382            ))
 6383            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6384                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6385            }))
 6386            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6387                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6388            }))
 6389            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6390                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6391            }))
 6392            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6393                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6394            }))
 6395            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6396                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6397                    SplitDirection::Down,
 6398                    SplitDirection::Up,
 6399                    SplitDirection::Right,
 6400                    SplitDirection::Left,
 6401                ];
 6402                for dir in DIRECTION_PRIORITY {
 6403                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6404                        workspace.swap_pane_in_direction(dir, cx);
 6405                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6406                        break;
 6407                    }
 6408                }
 6409            }))
 6410            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6411                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6412            }))
 6413            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6414                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6415            }))
 6416            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6417                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6418            }))
 6419            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6420                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6421            }))
 6422            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6423                this.toggle_dock(DockPosition::Left, window, cx);
 6424            }))
 6425            .on_action(cx.listener(
 6426                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6427                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6428                },
 6429            ))
 6430            .on_action(cx.listener(
 6431                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6432                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6433                },
 6434            ))
 6435            .on_action(cx.listener(
 6436                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6437                    if !workspace.close_active_dock(window, cx) {
 6438                        cx.propagate();
 6439                    }
 6440                },
 6441            ))
 6442            .on_action(
 6443                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6444                    workspace.close_all_docks(window, cx);
 6445                }),
 6446            )
 6447            .on_action(cx.listener(Self::toggle_all_docks))
 6448            .on_action(cx.listener(
 6449                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6450                    workspace.clear_all_notifications(cx);
 6451                },
 6452            ))
 6453            .on_action(cx.listener(
 6454                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6455                    workspace.clear_navigation_history(window, cx);
 6456                },
 6457            ))
 6458            .on_action(cx.listener(
 6459                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6460                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6461                        workspace.suppress_notification(&notification_id, cx);
 6462                    }
 6463                },
 6464            ))
 6465            .on_action(cx.listener(
 6466                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6467                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6468                },
 6469            ))
 6470            .on_action(
 6471                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6472                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6473                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6474                            trusted_worktrees.clear_trusted_paths()
 6475                        });
 6476                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6477                        cx.spawn(async move |_, cx| {
 6478                            if clear_task.await.log_err().is_some() {
 6479                                cx.update(|cx| reload(cx));
 6480                            }
 6481                        })
 6482                        .detach();
 6483                    }
 6484                }),
 6485            )
 6486            .on_action(cx.listener(
 6487                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6488                    workspace.reopen_closed_item(window, cx).detach();
 6489                },
 6490            ))
 6491            .on_action(cx.listener(
 6492                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6493                    for dock in workspace.all_docks() {
 6494                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6495                            let Some(panel) = dock.read(cx).active_panel() else {
 6496                                return;
 6497                            };
 6498
 6499                            // Set to `None`, then the size will fall back to the default.
 6500                            panel.clone().set_size(None, window, cx);
 6501
 6502                            return;
 6503                        }
 6504                    }
 6505                },
 6506            ))
 6507            .on_action(cx.listener(
 6508                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6509                    for dock in workspace.all_docks() {
 6510                        if let Some(panel) = dock.read(cx).visible_panel() {
 6511                            // Set to `None`, then the size will fall back to the default.
 6512                            panel.clone().set_size(None, window, cx);
 6513                        }
 6514                    }
 6515                },
 6516            ))
 6517            .on_action(cx.listener(
 6518                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6519                    adjust_active_dock_size_by_px(
 6520                        px_with_ui_font_fallback(act.px, cx),
 6521                        workspace,
 6522                        window,
 6523                        cx,
 6524                    );
 6525                },
 6526            ))
 6527            .on_action(cx.listener(
 6528                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6529                    adjust_active_dock_size_by_px(
 6530                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6531                        workspace,
 6532                        window,
 6533                        cx,
 6534                    );
 6535                },
 6536            ))
 6537            .on_action(cx.listener(
 6538                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6539                    adjust_open_docks_size_by_px(
 6540                        px_with_ui_font_fallback(act.px, cx),
 6541                        workspace,
 6542                        window,
 6543                        cx,
 6544                    );
 6545                },
 6546            ))
 6547            .on_action(cx.listener(
 6548                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6549                    adjust_open_docks_size_by_px(
 6550                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6551                        workspace,
 6552                        window,
 6553                        cx,
 6554                    );
 6555                },
 6556            ))
 6557            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6558            .on_action(cx.listener(
 6559                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6560                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6561                        let dock = active_dock.read(cx);
 6562                        if let Some(active_panel) = dock.active_panel() {
 6563                            if active_panel.pane(cx).is_none() {
 6564                                let mut recent_pane: Option<Entity<Pane>> = None;
 6565                                let mut recent_timestamp = 0;
 6566                                for pane_handle in workspace.panes() {
 6567                                    let pane = pane_handle.read(cx);
 6568                                    for entry in pane.activation_history() {
 6569                                        if entry.timestamp > recent_timestamp {
 6570                                            recent_timestamp = entry.timestamp;
 6571                                            recent_pane = Some(pane_handle.clone());
 6572                                        }
 6573                                    }
 6574                                }
 6575
 6576                                if let Some(pane) = recent_pane {
 6577                                    pane.update(cx, |pane, cx| {
 6578                                        let current_index = pane.active_item_index();
 6579                                        let items_len = pane.items_len();
 6580                                        if items_len > 0 {
 6581                                            let next_index = if current_index + 1 < items_len {
 6582                                                current_index + 1
 6583                                            } else {
 6584                                                0
 6585                                            };
 6586                                            pane.activate_item(
 6587                                                next_index, false, false, window, cx,
 6588                                            );
 6589                                        }
 6590                                    });
 6591                                    return;
 6592                                }
 6593                            }
 6594                        }
 6595                    }
 6596                    cx.propagate();
 6597                },
 6598            ))
 6599            .on_action(cx.listener(
 6600                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6601                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6602                        let dock = active_dock.read(cx);
 6603                        if let Some(active_panel) = dock.active_panel() {
 6604                            if active_panel.pane(cx).is_none() {
 6605                                let mut recent_pane: Option<Entity<Pane>> = None;
 6606                                let mut recent_timestamp = 0;
 6607                                for pane_handle in workspace.panes() {
 6608                                    let pane = pane_handle.read(cx);
 6609                                    for entry in pane.activation_history() {
 6610                                        if entry.timestamp > recent_timestamp {
 6611                                            recent_timestamp = entry.timestamp;
 6612                                            recent_pane = Some(pane_handle.clone());
 6613                                        }
 6614                                    }
 6615                                }
 6616
 6617                                if let Some(pane) = recent_pane {
 6618                                    pane.update(cx, |pane, cx| {
 6619                                        let current_index = pane.active_item_index();
 6620                                        let items_len = pane.items_len();
 6621                                        if items_len > 0 {
 6622                                            let prev_index = if current_index > 0 {
 6623                                                current_index - 1
 6624                                            } else {
 6625                                                items_len.saturating_sub(1)
 6626                                            };
 6627                                            pane.activate_item(
 6628                                                prev_index, false, false, window, cx,
 6629                                            );
 6630                                        }
 6631                                    });
 6632                                    return;
 6633                                }
 6634                            }
 6635                        }
 6636                    }
 6637                    cx.propagate();
 6638                },
 6639            ))
 6640            .on_action(cx.listener(
 6641                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6642                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6643                        let dock = active_dock.read(cx);
 6644                        if let Some(active_panel) = dock.active_panel() {
 6645                            if active_panel.pane(cx).is_none() {
 6646                                let active_pane = workspace.active_pane().clone();
 6647                                active_pane.update(cx, |pane, cx| {
 6648                                    pane.close_active_item(action, window, cx)
 6649                                        .detach_and_log_err(cx);
 6650                                });
 6651                                return;
 6652                            }
 6653                        }
 6654                    }
 6655                    cx.propagate();
 6656                },
 6657            ))
 6658            .on_action(
 6659                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6660                    let pane = workspace.active_pane().clone();
 6661                    if let Some(item) = pane.read(cx).active_item() {
 6662                        item.toggle_read_only(window, cx);
 6663                    }
 6664                }),
 6665            )
 6666            .on_action(cx.listener(Workspace::cancel))
 6667    }
 6668
 6669    #[cfg(any(test, feature = "test-support"))]
 6670    pub fn set_random_database_id(&mut self) {
 6671        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6672    }
 6673
 6674    #[cfg(any(test, feature = "test-support"))]
 6675    pub(crate) fn test_new(
 6676        project: Entity<Project>,
 6677        window: &mut Window,
 6678        cx: &mut Context<Self>,
 6679    ) -> Self {
 6680        use node_runtime::NodeRuntime;
 6681        use session::Session;
 6682
 6683        let client = project.read(cx).client();
 6684        let user_store = project.read(cx).user_store();
 6685        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6686        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6687        window.activate_window();
 6688        let app_state = Arc::new(AppState {
 6689            languages: project.read(cx).languages().clone(),
 6690            workspace_store,
 6691            client,
 6692            user_store,
 6693            fs: project.read(cx).fs().clone(),
 6694            build_window_options: |_, _| Default::default(),
 6695            node_runtime: NodeRuntime::unavailable(),
 6696            session,
 6697        });
 6698        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6699        workspace
 6700            .active_pane
 6701            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6702        workspace
 6703    }
 6704
 6705    pub fn register_action<A: Action>(
 6706        &mut self,
 6707        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6708    ) -> &mut Self {
 6709        let callback = Arc::new(callback);
 6710
 6711        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6712            let callback = callback.clone();
 6713            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6714                (callback)(workspace, event, window, cx)
 6715            }))
 6716        }));
 6717        self
 6718    }
 6719    pub fn register_action_renderer(
 6720        &mut self,
 6721        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6722    ) -> &mut Self {
 6723        self.workspace_actions.push(Box::new(callback));
 6724        self
 6725    }
 6726
 6727    fn add_workspace_actions_listeners(
 6728        &self,
 6729        mut div: Div,
 6730        window: &mut Window,
 6731        cx: &mut Context<Self>,
 6732    ) -> Div {
 6733        for action in self.workspace_actions.iter() {
 6734            div = (action)(div, self, window, cx)
 6735        }
 6736        div
 6737    }
 6738
 6739    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6740        self.modal_layer.read(cx).has_active_modal()
 6741    }
 6742
 6743    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6744        self.modal_layer.read(cx).active_modal()
 6745    }
 6746
 6747    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6748    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6749    /// If no modal is active, the new modal will be shown.
 6750    ///
 6751    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6752    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6753    /// will not be shown.
 6754    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6755    where
 6756        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6757    {
 6758        self.modal_layer.update(cx, |modal_layer, cx| {
 6759            modal_layer.toggle_modal(window, cx, build)
 6760        })
 6761    }
 6762
 6763    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6764        self.modal_layer
 6765            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6766    }
 6767
 6768    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6769        self.toast_layer
 6770            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6771    }
 6772
 6773    pub fn toggle_centered_layout(
 6774        &mut self,
 6775        _: &ToggleCenteredLayout,
 6776        _: &mut Window,
 6777        cx: &mut Context<Self>,
 6778    ) {
 6779        self.centered_layout = !self.centered_layout;
 6780        if let Some(database_id) = self.database_id() {
 6781            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6782                .detach_and_log_err(cx);
 6783        }
 6784        cx.notify();
 6785    }
 6786
 6787    fn adjust_padding(padding: Option<f32>) -> f32 {
 6788        padding
 6789            .unwrap_or(CenteredPaddingSettings::default().0)
 6790            .clamp(
 6791                CenteredPaddingSettings::MIN_PADDING,
 6792                CenteredPaddingSettings::MAX_PADDING,
 6793            )
 6794    }
 6795
 6796    fn render_dock(
 6797        &self,
 6798        position: DockPosition,
 6799        dock: &Entity<Dock>,
 6800        window: &mut Window,
 6801        cx: &mut App,
 6802    ) -> Option<Div> {
 6803        if self.zoomed_position == Some(position) {
 6804            return None;
 6805        }
 6806
 6807        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6808            let pane = panel.pane(cx)?;
 6809            let follower_states = &self.follower_states;
 6810            leader_border_for_pane(follower_states, &pane, window, cx)
 6811        });
 6812
 6813        Some(
 6814            div()
 6815                .flex()
 6816                .flex_none()
 6817                .overflow_hidden()
 6818                .child(dock.clone())
 6819                .children(leader_border),
 6820        )
 6821    }
 6822
 6823    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 6824        window
 6825            .root::<MultiWorkspace>()
 6826            .flatten()
 6827            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 6828    }
 6829
 6830    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6831        self.zoomed.as_ref()
 6832    }
 6833
 6834    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6835        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6836            return;
 6837        };
 6838        let windows = cx.windows();
 6839        let next_window =
 6840            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6841                || {
 6842                    windows
 6843                        .iter()
 6844                        .cycle()
 6845                        .skip_while(|window| window.window_id() != current_window_id)
 6846                        .nth(1)
 6847                },
 6848            );
 6849
 6850        if let Some(window) = next_window {
 6851            window
 6852                .update(cx, |_, window, _| window.activate_window())
 6853                .ok();
 6854        }
 6855    }
 6856
 6857    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6858        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6859            return;
 6860        };
 6861        let windows = cx.windows();
 6862        let prev_window =
 6863            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6864                || {
 6865                    windows
 6866                        .iter()
 6867                        .rev()
 6868                        .cycle()
 6869                        .skip_while(|window| window.window_id() != current_window_id)
 6870                        .nth(1)
 6871                },
 6872            );
 6873
 6874        if let Some(window) = prev_window {
 6875            window
 6876                .update(cx, |_, window, _| window.activate_window())
 6877                .ok();
 6878        }
 6879    }
 6880
 6881    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6882        if cx.stop_active_drag(window) {
 6883        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6884            dismiss_app_notification(&notification_id, cx);
 6885        } else {
 6886            cx.propagate();
 6887        }
 6888    }
 6889
 6890    fn adjust_dock_size_by_px(
 6891        &mut self,
 6892        panel_size: Pixels,
 6893        dock_pos: DockPosition,
 6894        px: Pixels,
 6895        window: &mut Window,
 6896        cx: &mut Context<Self>,
 6897    ) {
 6898        match dock_pos {
 6899            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6900            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6901            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6902        }
 6903    }
 6904
 6905    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6906        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6907
 6908        self.left_dock.update(cx, |left_dock, cx| {
 6909            if WorkspaceSettings::get_global(cx)
 6910                .resize_all_panels_in_dock
 6911                .contains(&DockPosition::Left)
 6912            {
 6913                left_dock.resize_all_panels(Some(size), window, cx);
 6914            } else {
 6915                left_dock.resize_active_panel(Some(size), window, cx);
 6916            }
 6917        });
 6918    }
 6919
 6920    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6921        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6922        self.left_dock.read_with(cx, |left_dock, cx| {
 6923            let left_dock_size = left_dock
 6924                .active_panel_size(window, cx)
 6925                .unwrap_or(Pixels::ZERO);
 6926            if left_dock_size + size > self.bounds.right() {
 6927                size = self.bounds.right() - left_dock_size
 6928            }
 6929        });
 6930        self.right_dock.update(cx, |right_dock, cx| {
 6931            if WorkspaceSettings::get_global(cx)
 6932                .resize_all_panels_in_dock
 6933                .contains(&DockPosition::Right)
 6934            {
 6935                right_dock.resize_all_panels(Some(size), window, cx);
 6936            } else {
 6937                right_dock.resize_active_panel(Some(size), window, cx);
 6938            }
 6939        });
 6940    }
 6941
 6942    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6943        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6944        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6945            if WorkspaceSettings::get_global(cx)
 6946                .resize_all_panels_in_dock
 6947                .contains(&DockPosition::Bottom)
 6948            {
 6949                bottom_dock.resize_all_panels(Some(size), window, cx);
 6950            } else {
 6951                bottom_dock.resize_active_panel(Some(size), window, cx);
 6952            }
 6953        });
 6954    }
 6955
 6956    fn toggle_edit_predictions_all_files(
 6957        &mut self,
 6958        _: &ToggleEditPrediction,
 6959        _window: &mut Window,
 6960        cx: &mut Context<Self>,
 6961    ) {
 6962        let fs = self.project().read(cx).fs().clone();
 6963        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6964        update_settings_file(fs, cx, move |file, _| {
 6965            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6966        });
 6967    }
 6968
 6969    pub fn show_worktree_trust_security_modal(
 6970        &mut self,
 6971        toggle: bool,
 6972        window: &mut Window,
 6973        cx: &mut Context<Self>,
 6974    ) {
 6975        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6976            if toggle {
 6977                security_modal.update(cx, |security_modal, cx| {
 6978                    security_modal.dismiss(cx);
 6979                })
 6980            } else {
 6981                security_modal.update(cx, |security_modal, cx| {
 6982                    security_modal.refresh_restricted_paths(cx);
 6983                });
 6984            }
 6985        } else {
 6986            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6987                .map(|trusted_worktrees| {
 6988                    trusted_worktrees
 6989                        .read(cx)
 6990                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6991                })
 6992                .unwrap_or(false);
 6993            if has_restricted_worktrees {
 6994                let project = self.project().read(cx);
 6995                let remote_host = project
 6996                    .remote_connection_options(cx)
 6997                    .map(RemoteHostLocation::from);
 6998                let worktree_store = project.worktree_store().downgrade();
 6999                self.toggle_modal(window, cx, |_, cx| {
 7000                    SecurityModal::new(worktree_store, remote_host, cx)
 7001                });
 7002            }
 7003        }
 7004    }
 7005}
 7006
 7007fn leader_border_for_pane(
 7008    follower_states: &HashMap<CollaboratorId, FollowerState>,
 7009    pane: &Entity<Pane>,
 7010    _: &Window,
 7011    cx: &App,
 7012) -> Option<Div> {
 7013    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 7014        if state.pane() == pane {
 7015            Some((*leader_id, state))
 7016        } else {
 7017            None
 7018        }
 7019    })?;
 7020
 7021    let mut leader_color = match leader_id {
 7022        CollaboratorId::PeerId(leader_peer_id) => {
 7023            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 7024            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 7025
 7026            cx.theme()
 7027                .players()
 7028                .color_for_participant(leader.participant_index.0)
 7029                .cursor
 7030        }
 7031        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7032    };
 7033    leader_color.fade_out(0.3);
 7034    Some(
 7035        div()
 7036            .absolute()
 7037            .size_full()
 7038            .left_0()
 7039            .top_0()
 7040            .border_2()
 7041            .border_color(leader_color),
 7042    )
 7043}
 7044
 7045fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7046    ZED_WINDOW_POSITION
 7047        .zip(*ZED_WINDOW_SIZE)
 7048        .map(|(position, size)| Bounds {
 7049            origin: position,
 7050            size,
 7051        })
 7052}
 7053
 7054fn open_items(
 7055    serialized_workspace: Option<SerializedWorkspace>,
 7056    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7057    window: &mut Window,
 7058    cx: &mut Context<Workspace>,
 7059) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7060    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7061        Workspace::load_workspace(
 7062            serialized_workspace,
 7063            project_paths_to_open
 7064                .iter()
 7065                .map(|(_, project_path)| project_path)
 7066                .cloned()
 7067                .collect(),
 7068            window,
 7069            cx,
 7070        )
 7071    });
 7072
 7073    cx.spawn_in(window, async move |workspace, cx| {
 7074        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7075
 7076        if let Some(restored_items) = restored_items {
 7077            let restored_items = restored_items.await?;
 7078
 7079            let restored_project_paths = restored_items
 7080                .iter()
 7081                .filter_map(|item| {
 7082                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7083                        .ok()
 7084                        .flatten()
 7085                })
 7086                .collect::<HashSet<_>>();
 7087
 7088            for restored_item in restored_items {
 7089                opened_items.push(restored_item.map(Ok));
 7090            }
 7091
 7092            project_paths_to_open
 7093                .iter_mut()
 7094                .for_each(|(_, project_path)| {
 7095                    if let Some(project_path_to_open) = project_path
 7096                        && restored_project_paths.contains(project_path_to_open)
 7097                    {
 7098                        *project_path = None;
 7099                    }
 7100                });
 7101        } else {
 7102            for _ in 0..project_paths_to_open.len() {
 7103                opened_items.push(None);
 7104            }
 7105        }
 7106        assert!(opened_items.len() == project_paths_to_open.len());
 7107
 7108        let tasks =
 7109            project_paths_to_open
 7110                .into_iter()
 7111                .enumerate()
 7112                .map(|(ix, (abs_path, project_path))| {
 7113                    let workspace = workspace.clone();
 7114                    cx.spawn(async move |cx| {
 7115                        let file_project_path = project_path?;
 7116                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7117                            workspace.project().update(cx, |project, cx| {
 7118                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7119                            })
 7120                        });
 7121
 7122                        // We only want to open file paths here. If one of the items
 7123                        // here is a directory, it was already opened further above
 7124                        // with a `find_or_create_worktree`.
 7125                        if let Ok(task) = abs_path_task
 7126                            && task.await.is_none_or(|p| p.is_file())
 7127                        {
 7128                            return Some((
 7129                                ix,
 7130                                workspace
 7131                                    .update_in(cx, |workspace, window, cx| {
 7132                                        workspace.open_path(
 7133                                            file_project_path,
 7134                                            None,
 7135                                            true,
 7136                                            window,
 7137                                            cx,
 7138                                        )
 7139                                    })
 7140                                    .log_err()?
 7141                                    .await,
 7142                            ));
 7143                        }
 7144                        None
 7145                    })
 7146                });
 7147
 7148        let tasks = tasks.collect::<Vec<_>>();
 7149
 7150        let tasks = futures::future::join_all(tasks);
 7151        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7152            opened_items[ix] = Some(path_open_result);
 7153        }
 7154
 7155        Ok(opened_items)
 7156    })
 7157}
 7158
 7159enum ActivateInDirectionTarget {
 7160    Pane(Entity<Pane>),
 7161    Dock(Entity<Dock>),
 7162}
 7163
 7164fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7165    window
 7166        .update(cx, |multi_workspace, _, cx| {
 7167            let workspace = multi_workspace.workspace().clone();
 7168            workspace.update(cx, |workspace, cx| {
 7169                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7170                    struct DatabaseFailedNotification;
 7171
 7172                    workspace.show_notification(
 7173                        NotificationId::unique::<DatabaseFailedNotification>(),
 7174                        cx,
 7175                        |cx| {
 7176                            cx.new(|cx| {
 7177                                MessageNotification::new("Failed to load the database file.", cx)
 7178                                    .primary_message("File an Issue")
 7179                                    .primary_icon(IconName::Plus)
 7180                                    .primary_on_click(|window, cx| {
 7181                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7182                                    })
 7183                            })
 7184                        },
 7185                    );
 7186                }
 7187            });
 7188        })
 7189        .log_err();
 7190}
 7191
 7192fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7193    if val == 0 {
 7194        ThemeSettings::get_global(cx).ui_font_size(cx)
 7195    } else {
 7196        px(val as f32)
 7197    }
 7198}
 7199
 7200fn adjust_active_dock_size_by_px(
 7201    px: Pixels,
 7202    workspace: &mut Workspace,
 7203    window: &mut Window,
 7204    cx: &mut Context<Workspace>,
 7205) {
 7206    let Some(active_dock) = workspace
 7207        .all_docks()
 7208        .into_iter()
 7209        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7210    else {
 7211        return;
 7212    };
 7213    let dock = active_dock.read(cx);
 7214    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7215        return;
 7216    };
 7217    let dock_pos = dock.position();
 7218    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7219}
 7220
 7221fn adjust_open_docks_size_by_px(
 7222    px: Pixels,
 7223    workspace: &mut Workspace,
 7224    window: &mut Window,
 7225    cx: &mut Context<Workspace>,
 7226) {
 7227    let docks = workspace
 7228        .all_docks()
 7229        .into_iter()
 7230        .filter_map(|dock| {
 7231            if dock.read(cx).is_open() {
 7232                let dock = dock.read(cx);
 7233                let panel_size = dock.active_panel_size(window, cx)?;
 7234                let dock_pos = dock.position();
 7235                Some((panel_size, dock_pos, px))
 7236            } else {
 7237                None
 7238            }
 7239        })
 7240        .collect::<Vec<_>>();
 7241
 7242    docks
 7243        .into_iter()
 7244        .for_each(|(panel_size, dock_pos, offset)| {
 7245            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7246        });
 7247}
 7248
 7249impl Focusable for Workspace {
 7250    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7251        self.active_pane.focus_handle(cx)
 7252    }
 7253}
 7254
 7255#[derive(Clone)]
 7256struct DraggedDock(DockPosition);
 7257
 7258impl Render for DraggedDock {
 7259    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7260        gpui::Empty
 7261    }
 7262}
 7263
 7264impl Render for Workspace {
 7265    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7266        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7267        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7268            log::info!("Rendered first frame");
 7269        }
 7270        let mut context = KeyContext::new_with_defaults();
 7271        context.add("Workspace");
 7272        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 7273        if let Some(status) = self
 7274            .debugger_provider
 7275            .as_ref()
 7276            .and_then(|provider| provider.active_thread_state(cx))
 7277        {
 7278            match status {
 7279                ThreadStatus::Running | ThreadStatus::Stepping => {
 7280                    context.add("debugger_running");
 7281                }
 7282                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7283                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7284            }
 7285        }
 7286
 7287        if self.left_dock.read(cx).is_open() {
 7288            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7289                context.set("left_dock", active_panel.panel_key());
 7290            }
 7291        }
 7292
 7293        if self.right_dock.read(cx).is_open() {
 7294            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7295                context.set("right_dock", active_panel.panel_key());
 7296            }
 7297        }
 7298
 7299        if self.bottom_dock.read(cx).is_open() {
 7300            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7301                context.set("bottom_dock", active_panel.panel_key());
 7302            }
 7303        }
 7304
 7305        let centered_layout = self.centered_layout
 7306            && self.center.panes().len() == 1
 7307            && self.active_item(cx).is_some();
 7308        let render_padding = |size| {
 7309            (size > 0.0).then(|| {
 7310                div()
 7311                    .h_full()
 7312                    .w(relative(size))
 7313                    .bg(cx.theme().colors().editor_background)
 7314                    .border_color(cx.theme().colors().pane_group_border)
 7315            })
 7316        };
 7317        let paddings = if centered_layout {
 7318            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7319            (
 7320                render_padding(Self::adjust_padding(
 7321                    settings.left_padding.map(|padding| padding.0),
 7322                )),
 7323                render_padding(Self::adjust_padding(
 7324                    settings.right_padding.map(|padding| padding.0),
 7325                )),
 7326            )
 7327        } else {
 7328            (None, None)
 7329        };
 7330        let ui_font = theme::setup_ui_font(window, cx);
 7331
 7332        let theme = cx.theme().clone();
 7333        let colors = theme.colors();
 7334        let notification_entities = self
 7335            .notifications
 7336            .iter()
 7337            .map(|(_, notification)| notification.entity_id())
 7338            .collect::<Vec<_>>();
 7339        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7340
 7341        self.actions(div(), window, cx)
 7342            .key_context(context)
 7343            .relative()
 7344            .size_full()
 7345            .flex()
 7346            .flex_col()
 7347            .font(ui_font)
 7348            .gap_0()
 7349                .justify_start()
 7350                .items_start()
 7351                .text_color(colors.text)
 7352                .overflow_hidden()
 7353                .children(self.titlebar_item.clone())
 7354                .on_modifiers_changed(move |_, _, cx| {
 7355                    for &id in &notification_entities {
 7356                        cx.notify(id);
 7357                    }
 7358                })
 7359                .child(
 7360                    div()
 7361                        .size_full()
 7362                        .relative()
 7363                        .flex_1()
 7364                        .flex()
 7365                        .flex_col()
 7366                        .child(
 7367                            div()
 7368                                .id("workspace")
 7369                                .bg(colors.background)
 7370                                .relative()
 7371                                .flex_1()
 7372                                .w_full()
 7373                                .flex()
 7374                                .flex_col()
 7375                                .overflow_hidden()
 7376                                .border_t_1()
 7377                                .border_b_1()
 7378                                .border_color(colors.border)
 7379                                .child({
 7380                                    let this = cx.entity();
 7381                                    canvas(
 7382                                        move |bounds, window, cx| {
 7383                                            this.update(cx, |this, cx| {
 7384                                                let bounds_changed = this.bounds != bounds;
 7385                                                this.bounds = bounds;
 7386
 7387                                                if bounds_changed {
 7388                                                    this.left_dock.update(cx, |dock, cx| {
 7389                                                        dock.clamp_panel_size(
 7390                                                            bounds.size.width,
 7391                                                            window,
 7392                                                            cx,
 7393                                                        )
 7394                                                    });
 7395
 7396                                                    this.right_dock.update(cx, |dock, cx| {
 7397                                                        dock.clamp_panel_size(
 7398                                                            bounds.size.width,
 7399                                                            window,
 7400                                                            cx,
 7401                                                        )
 7402                                                    });
 7403
 7404                                                    this.bottom_dock.update(cx, |dock, cx| {
 7405                                                        dock.clamp_panel_size(
 7406                                                            bounds.size.height,
 7407                                                            window,
 7408                                                            cx,
 7409                                                        )
 7410                                                    });
 7411                                                }
 7412                                            })
 7413                                        },
 7414                                        |_, _, _, _| {},
 7415                                    )
 7416                                    .absolute()
 7417                                    .size_full()
 7418                                })
 7419                                .when(self.zoomed.is_none(), |this| {
 7420                                    this.on_drag_move(cx.listener(
 7421                                        move |workspace,
 7422                                              e: &DragMoveEvent<DraggedDock>,
 7423                                              window,
 7424                                              cx| {
 7425                                            if workspace.previous_dock_drag_coordinates
 7426                                                != Some(e.event.position)
 7427                                            {
 7428                                                workspace.previous_dock_drag_coordinates =
 7429                                                    Some(e.event.position);
 7430                                                match e.drag(cx).0 {
 7431                                                    DockPosition::Left => {
 7432                                                        workspace.resize_left_dock(
 7433                                                            e.event.position.x
 7434                                                                - workspace.bounds.left(),
 7435                                                            window,
 7436                                                            cx,
 7437                                                        );
 7438                                                    }
 7439                                                    DockPosition::Right => {
 7440                                                        workspace.resize_right_dock(
 7441                                                            workspace.bounds.right()
 7442                                                                - e.event.position.x,
 7443                                                            window,
 7444                                                            cx,
 7445                                                        );
 7446                                                    }
 7447                                                    DockPosition::Bottom => {
 7448                                                        workspace.resize_bottom_dock(
 7449                                                            workspace.bounds.bottom()
 7450                                                                - e.event.position.y,
 7451                                                            window,
 7452                                                            cx,
 7453                                                        );
 7454                                                    }
 7455                                                };
 7456                                                workspace.serialize_workspace(window, cx);
 7457                                            }
 7458                                        },
 7459                                    ))
 7460
 7461                                })
 7462                                .child({
 7463                                    match bottom_dock_layout {
 7464                                        BottomDockLayout::Full => div()
 7465                                            .flex()
 7466                                            .flex_col()
 7467                                            .h_full()
 7468                                            .child(
 7469                                                div()
 7470                                                    .flex()
 7471                                                    .flex_row()
 7472                                                    .flex_1()
 7473                                                    .overflow_hidden()
 7474                                                    .children(self.render_dock(
 7475                                                        DockPosition::Left,
 7476                                                        &self.left_dock,
 7477                                                        window,
 7478                                                        cx,
 7479                                                    ))
 7480
 7481                                                    .child(
 7482                                                        div()
 7483                                                            .flex()
 7484                                                            .flex_col()
 7485                                                            .flex_1()
 7486                                                            .overflow_hidden()
 7487                                                            .child(
 7488                                                                h_flex()
 7489                                                                    .flex_1()
 7490                                                                    .when_some(
 7491                                                                        paddings.0,
 7492                                                                        |this, p| {
 7493                                                                            this.child(
 7494                                                                                p.border_r_1(),
 7495                                                                            )
 7496                                                                        },
 7497                                                                    )
 7498                                                                    .child(self.center.render(
 7499                                                                        self.zoomed.as_ref(),
 7500                                                                        &PaneRenderContext {
 7501                                                                            follower_states:
 7502                                                                                &self.follower_states,
 7503                                                                            active_call: self.active_call(),
 7504                                                                            active_pane: &self.active_pane,
 7505                                                                            app_state: &self.app_state,
 7506                                                                            project: &self.project,
 7507                                                                            workspace: &self.weak_self,
 7508                                                                        },
 7509                                                                        window,
 7510                                                                        cx,
 7511                                                                    ))
 7512                                                                    .when_some(
 7513                                                                        paddings.1,
 7514                                                                        |this, p| {
 7515                                                                            this.child(
 7516                                                                                p.border_l_1(),
 7517                                                                            )
 7518                                                                        },
 7519                                                                    ),
 7520                                                            ),
 7521                                                    )
 7522
 7523                                                    .children(self.render_dock(
 7524                                                        DockPosition::Right,
 7525                                                        &self.right_dock,
 7526                                                        window,
 7527                                                        cx,
 7528                                                    )),
 7529                                            )
 7530                                            .child(div().w_full().children(self.render_dock(
 7531                                                DockPosition::Bottom,
 7532                                                &self.bottom_dock,
 7533                                                window,
 7534                                                cx
 7535                                            ))),
 7536
 7537                                        BottomDockLayout::LeftAligned => div()
 7538                                            .flex()
 7539                                            .flex_row()
 7540                                            .h_full()
 7541                                            .child(
 7542                                                div()
 7543                                                    .flex()
 7544                                                    .flex_col()
 7545                                                    .flex_1()
 7546                                                    .h_full()
 7547                                                    .child(
 7548                                                        div()
 7549                                                            .flex()
 7550                                                            .flex_row()
 7551                                                            .flex_1()
 7552                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7553
 7554                                                            .child(
 7555                                                                div()
 7556                                                                    .flex()
 7557                                                                    .flex_col()
 7558                                                                    .flex_1()
 7559                                                                    .overflow_hidden()
 7560                                                                    .child(
 7561                                                                        h_flex()
 7562                                                                            .flex_1()
 7563                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7564                                                                            .child(self.center.render(
 7565                                                                                self.zoomed.as_ref(),
 7566                                                                                &PaneRenderContext {
 7567                                                                                    follower_states:
 7568                                                                                        &self.follower_states,
 7569                                                                                    active_call: self.active_call(),
 7570                                                                                    active_pane: &self.active_pane,
 7571                                                                                    app_state: &self.app_state,
 7572                                                                                    project: &self.project,
 7573                                                                                    workspace: &self.weak_self,
 7574                                                                                },
 7575                                                                                window,
 7576                                                                                cx,
 7577                                                                            ))
 7578                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7579                                                                    )
 7580                                                            )
 7581
 7582                                                    )
 7583                                                    .child(
 7584                                                        div()
 7585                                                            .w_full()
 7586                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7587                                                    ),
 7588                                            )
 7589                                            .children(self.render_dock(
 7590                                                DockPosition::Right,
 7591                                                &self.right_dock,
 7592                                                window,
 7593                                                cx,
 7594                                            )),
 7595
 7596                                        BottomDockLayout::RightAligned => div()
 7597                                            .flex()
 7598                                            .flex_row()
 7599                                            .h_full()
 7600                                            .children(self.render_dock(
 7601                                                DockPosition::Left,
 7602                                                &self.left_dock,
 7603                                                window,
 7604                                                cx,
 7605                                            ))
 7606
 7607                                            .child(
 7608                                                div()
 7609                                                    .flex()
 7610                                                    .flex_col()
 7611                                                    .flex_1()
 7612                                                    .h_full()
 7613                                                    .child(
 7614                                                        div()
 7615                                                            .flex()
 7616                                                            .flex_row()
 7617                                                            .flex_1()
 7618                                                            .child(
 7619                                                                div()
 7620                                                                    .flex()
 7621                                                                    .flex_col()
 7622                                                                    .flex_1()
 7623                                                                    .overflow_hidden()
 7624                                                                    .child(
 7625                                                                        h_flex()
 7626                                                                            .flex_1()
 7627                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7628                                                                            .child(self.center.render(
 7629                                                                                self.zoomed.as_ref(),
 7630                                                                                &PaneRenderContext {
 7631                                                                                    follower_states:
 7632                                                                                        &self.follower_states,
 7633                                                                                    active_call: self.active_call(),
 7634                                                                                    active_pane: &self.active_pane,
 7635                                                                                    app_state: &self.app_state,
 7636                                                                                    project: &self.project,
 7637                                                                                    workspace: &self.weak_self,
 7638                                                                                },
 7639                                                                                window,
 7640                                                                                cx,
 7641                                                                            ))
 7642                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7643                                                                    )
 7644                                                            )
 7645
 7646                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7647                                                    )
 7648                                                    .child(
 7649                                                        div()
 7650                                                            .w_full()
 7651                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7652                                                    ),
 7653                                            ),
 7654
 7655                                        BottomDockLayout::Contained => div()
 7656                                            .flex()
 7657                                            .flex_row()
 7658                                            .h_full()
 7659                                            .children(self.render_dock(
 7660                                                DockPosition::Left,
 7661                                                &self.left_dock,
 7662                                                window,
 7663                                                cx,
 7664                                            ))
 7665
 7666                                            .child(
 7667                                                div()
 7668                                                    .flex()
 7669                                                    .flex_col()
 7670                                                    .flex_1()
 7671                                                    .overflow_hidden()
 7672                                                    .child(
 7673                                                        h_flex()
 7674                                                            .flex_1()
 7675                                                            .when_some(paddings.0, |this, p| {
 7676                                                                this.child(p.border_r_1())
 7677                                                            })
 7678                                                            .child(self.center.render(
 7679                                                                self.zoomed.as_ref(),
 7680                                                                &PaneRenderContext {
 7681                                                                    follower_states:
 7682                                                                        &self.follower_states,
 7683                                                                    active_call: self.active_call(),
 7684                                                                    active_pane: &self.active_pane,
 7685                                                                    app_state: &self.app_state,
 7686                                                                    project: &self.project,
 7687                                                                    workspace: &self.weak_self,
 7688                                                                },
 7689                                                                window,
 7690                                                                cx,
 7691                                                            ))
 7692                                                            .when_some(paddings.1, |this, p| {
 7693                                                                this.child(p.border_l_1())
 7694                                                            }),
 7695                                                    )
 7696                                                    .children(self.render_dock(
 7697                                                        DockPosition::Bottom,
 7698                                                        &self.bottom_dock,
 7699                                                        window,
 7700                                                        cx,
 7701                                                    )),
 7702                                            )
 7703
 7704                                            .children(self.render_dock(
 7705                                                DockPosition::Right,
 7706                                                &self.right_dock,
 7707                                                window,
 7708                                                cx,
 7709                                            )),
 7710                                    }
 7711                                })
 7712                                .children(self.zoomed.as_ref().and_then(|view| {
 7713                                    let zoomed_view = view.upgrade()?;
 7714                                    let div = div()
 7715                                        .occlude()
 7716                                        .absolute()
 7717                                        .overflow_hidden()
 7718                                        .border_color(colors.border)
 7719                                        .bg(colors.background)
 7720                                        .child(zoomed_view)
 7721                                        .inset_0()
 7722                                        .shadow_lg();
 7723
 7724                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7725                                       return Some(div);
 7726                                    }
 7727
 7728                                    Some(match self.zoomed_position {
 7729                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7730                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7731                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7732                                        None => {
 7733                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7734                                        }
 7735                                    })
 7736                                }))
 7737                                .children(self.render_notifications(window, cx)),
 7738                        )
 7739                        .when(self.status_bar_visible(cx), |parent| {
 7740                            parent.child(self.status_bar.clone())
 7741                        })
 7742                        .child(self.modal_layer.clone())
 7743                        .child(self.toast_layer.clone()),
 7744                )
 7745    }
 7746}
 7747
 7748impl WorkspaceStore {
 7749    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7750        Self {
 7751            workspaces: Default::default(),
 7752            _subscriptions: vec![
 7753                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7754                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7755            ],
 7756            client,
 7757        }
 7758    }
 7759
 7760    pub fn update_followers(
 7761        &self,
 7762        project_id: Option<u64>,
 7763        update: proto::update_followers::Variant,
 7764        cx: &App,
 7765    ) -> Option<()> {
 7766        let active_call = ActiveCall::try_global(cx)?;
 7767        let room_id = active_call.read(cx).room()?.read(cx).id();
 7768        self.client
 7769            .send(proto::UpdateFollowers {
 7770                room_id,
 7771                project_id,
 7772                variant: Some(update),
 7773            })
 7774            .log_err()
 7775    }
 7776
 7777    pub async fn handle_follow(
 7778        this: Entity<Self>,
 7779        envelope: TypedEnvelope<proto::Follow>,
 7780        mut cx: AsyncApp,
 7781    ) -> Result<proto::FollowResponse> {
 7782        this.update(&mut cx, |this, cx| {
 7783            let follower = Follower {
 7784                project_id: envelope.payload.project_id,
 7785                peer_id: envelope.original_sender_id()?,
 7786            };
 7787
 7788            let mut response = proto::FollowResponse::default();
 7789
 7790            this.workspaces.retain(|(window_handle, weak_workspace)| {
 7791                let Some(workspace) = weak_workspace.upgrade() else {
 7792                    return false;
 7793                };
 7794                window_handle
 7795                    .update(cx, |_, window, cx| {
 7796                        workspace.update(cx, |workspace, cx| {
 7797                            let handler_response =
 7798                                workspace.handle_follow(follower.project_id, window, cx);
 7799                            if let Some(active_view) = handler_response.active_view
 7800                                && workspace.project.read(cx).remote_id() == follower.project_id
 7801                            {
 7802                                response.active_view = Some(active_view)
 7803                            }
 7804                        });
 7805                    })
 7806                    .is_ok()
 7807            });
 7808
 7809            Ok(response)
 7810        })
 7811    }
 7812
 7813    async fn handle_update_followers(
 7814        this: Entity<Self>,
 7815        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7816        mut cx: AsyncApp,
 7817    ) -> Result<()> {
 7818        let leader_id = envelope.original_sender_id()?;
 7819        let update = envelope.payload;
 7820
 7821        this.update(&mut cx, |this, cx| {
 7822            this.workspaces.retain(|(window_handle, weak_workspace)| {
 7823                let Some(workspace) = weak_workspace.upgrade() else {
 7824                    return false;
 7825                };
 7826                window_handle
 7827                    .update(cx, |_, window, cx| {
 7828                        workspace.update(cx, |workspace, cx| {
 7829                            let project_id = workspace.project.read(cx).remote_id();
 7830                            if update.project_id != project_id && update.project_id.is_some() {
 7831                                return;
 7832                            }
 7833                            workspace.handle_update_followers(
 7834                                leader_id,
 7835                                update.clone(),
 7836                                window,
 7837                                cx,
 7838                            );
 7839                        });
 7840                    })
 7841                    .is_ok()
 7842            });
 7843            Ok(())
 7844        })
 7845    }
 7846
 7847    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 7848        self.workspaces.iter().map(|(_, weak)| weak)
 7849    }
 7850
 7851    pub fn workspaces_with_windows(
 7852        &self,
 7853    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 7854        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 7855    }
 7856}
 7857
 7858impl ViewId {
 7859    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7860        Ok(Self {
 7861            creator: message
 7862                .creator
 7863                .map(CollaboratorId::PeerId)
 7864                .context("creator is missing")?,
 7865            id: message.id,
 7866        })
 7867    }
 7868
 7869    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7870        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7871            Some(proto::ViewId {
 7872                creator: Some(peer_id),
 7873                id: self.id,
 7874            })
 7875        } else {
 7876            None
 7877        }
 7878    }
 7879}
 7880
 7881impl FollowerState {
 7882    fn pane(&self) -> &Entity<Pane> {
 7883        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7884    }
 7885}
 7886
 7887pub trait WorkspaceHandle {
 7888    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7889}
 7890
 7891impl WorkspaceHandle for Entity<Workspace> {
 7892    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7893        self.read(cx)
 7894            .worktrees(cx)
 7895            .flat_map(|worktree| {
 7896                let worktree_id = worktree.read(cx).id();
 7897                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7898                    worktree_id,
 7899                    path: f.path.clone(),
 7900                })
 7901            })
 7902            .collect::<Vec<_>>()
 7903    }
 7904}
 7905
 7906pub async fn last_opened_workspace_location(
 7907    fs: &dyn fs::Fs,
 7908) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 7909    DB.last_workspace(fs)
 7910        .await
 7911        .log_err()
 7912        .flatten()
 7913        .map(|(id, location, paths, _timestamp)| (id, location, paths))
 7914}
 7915
 7916pub async fn last_session_workspace_locations(
 7917    last_session_id: &str,
 7918    last_session_window_stack: Option<Vec<WindowId>>,
 7919    fs: &dyn fs::Fs,
 7920) -> Option<Vec<SessionWorkspace>> {
 7921    DB.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 7922        .await
 7923        .log_err()
 7924}
 7925
 7926pub struct MultiWorkspaceRestoreResult {
 7927    pub window_handle: WindowHandle<MultiWorkspace>,
 7928    pub errors: Vec<anyhow::Error>,
 7929}
 7930
 7931pub async fn restore_multiworkspace(
 7932    multi_workspace: SerializedMultiWorkspace,
 7933    app_state: Arc<AppState>,
 7934    cx: &mut AsyncApp,
 7935) -> anyhow::Result<MultiWorkspaceRestoreResult> {
 7936    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 7937    let mut group_iter = workspaces.into_iter();
 7938    let first = group_iter
 7939        .next()
 7940        .context("window group must not be empty")?;
 7941
 7942    let window_handle = if first.paths.is_empty() {
 7943        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 7944            .await?
 7945    } else {
 7946        let (window, _items) = cx
 7947            .update(|cx| {
 7948                Workspace::new_local(
 7949                    first.paths.paths().to_vec(),
 7950                    app_state.clone(),
 7951                    None,
 7952                    None,
 7953                    None,
 7954                    cx,
 7955                )
 7956            })
 7957            .await?;
 7958        window
 7959    };
 7960
 7961    let mut errors = Vec::new();
 7962
 7963    for session_workspace in group_iter {
 7964        let error = if session_workspace.paths.is_empty() {
 7965            cx.update(|cx| {
 7966                open_workspace_by_id(
 7967                    session_workspace.workspace_id,
 7968                    app_state.clone(),
 7969                    Some(window_handle),
 7970                    cx,
 7971                )
 7972            })
 7973            .await
 7974            .err()
 7975        } else {
 7976            cx.update(|cx| {
 7977                Workspace::new_local(
 7978                    session_workspace.paths.paths().to_vec(),
 7979                    app_state.clone(),
 7980                    Some(window_handle),
 7981                    None,
 7982                    None,
 7983                    cx,
 7984                )
 7985            })
 7986            .await
 7987            .err()
 7988        };
 7989
 7990        if let Some(error) = error {
 7991            errors.push(error);
 7992        }
 7993    }
 7994
 7995    if let Some(target_id) = state.active_workspace_id {
 7996        window_handle
 7997            .update(cx, |multi_workspace, window, cx| {
 7998                let target_index = multi_workspace
 7999                    .workspaces()
 8000                    .iter()
 8001                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 8002                if let Some(index) = target_index {
 8003                    multi_workspace.activate_index(index, window, cx);
 8004                } else if !multi_workspace.workspaces().is_empty() {
 8005                    multi_workspace.activate_index(0, window, cx);
 8006                }
 8007            })
 8008            .ok();
 8009    } else {
 8010        window_handle
 8011            .update(cx, |multi_workspace, window, cx| {
 8012                if !multi_workspace.workspaces().is_empty() {
 8013                    multi_workspace.activate_index(0, window, cx);
 8014                }
 8015            })
 8016            .ok();
 8017    }
 8018
 8019    if state.sidebar_open {
 8020        window_handle
 8021            .update(cx, |multi_workspace, _, cx| {
 8022                multi_workspace.open_sidebar(cx);
 8023            })
 8024            .ok();
 8025    }
 8026
 8027    window_handle
 8028        .update(cx, |_, window, _cx| {
 8029            window.activate_window();
 8030        })
 8031        .ok();
 8032
 8033    Ok(MultiWorkspaceRestoreResult {
 8034        window_handle,
 8035        errors,
 8036    })
 8037}
 8038
 8039actions!(
 8040    collab,
 8041    [
 8042        /// Opens the channel notes for the current call.
 8043        ///
 8044        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 8045        /// channel in the collab panel.
 8046        ///
 8047        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 8048        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8049        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8050        OpenChannelNotes,
 8051        /// Mutes your microphone.
 8052        Mute,
 8053        /// Deafens yourself (mute both microphone and speakers).
 8054        Deafen,
 8055        /// Leaves the current call.
 8056        LeaveCall,
 8057        /// Shares the current project with collaborators.
 8058        ShareProject,
 8059        /// Shares your screen with collaborators.
 8060        ScreenShare,
 8061        /// Copies the current room name and session id for debugging purposes.
 8062        CopyRoomId,
 8063    ]
 8064);
 8065actions!(
 8066    zed,
 8067    [
 8068        /// Opens the Zed log file.
 8069        OpenLog,
 8070        /// Reveals the Zed log file in the system file manager.
 8071        RevealLogInFileManager
 8072    ]
 8073);
 8074
 8075async fn join_channel_internal(
 8076    channel_id: ChannelId,
 8077    app_state: &Arc<AppState>,
 8078    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8079    requesting_workspace: Option<WeakEntity<Workspace>>,
 8080    active_call: &Entity<ActiveCall>,
 8081    cx: &mut AsyncApp,
 8082) -> Result<bool> {
 8083    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 8084        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 8085            return (false, None);
 8086        };
 8087
 8088        let already_in_channel = room.channel_id() == Some(channel_id);
 8089        let should_prompt = room.is_sharing_project()
 8090            && !room.remote_participants().is_empty()
 8091            && !already_in_channel;
 8092        let open_room = if already_in_channel {
 8093            active_call.room().cloned()
 8094        } else {
 8095            None
 8096        };
 8097        (should_prompt, open_room)
 8098    });
 8099
 8100    if let Some(room) = open_room {
 8101        let task = room.update(cx, |room, cx| {
 8102            if let Some((project, host)) = room.most_active_project(cx) {
 8103                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8104            }
 8105
 8106            None
 8107        });
 8108        if let Some(task) = task {
 8109            task.await?;
 8110        }
 8111        return anyhow::Ok(true);
 8112    }
 8113
 8114    if should_prompt {
 8115        if let Some(multi_workspace) = requesting_window {
 8116            let answer = multi_workspace
 8117                .update(cx, |_, window, cx| {
 8118                    window.prompt(
 8119                        PromptLevel::Warning,
 8120                        "Do you want to switch channels?",
 8121                        Some("Leaving this call will unshare your current project."),
 8122                        &["Yes, Join Channel", "Cancel"],
 8123                        cx,
 8124                    )
 8125                })?
 8126                .await;
 8127
 8128            if answer == Ok(1) {
 8129                return Ok(false);
 8130            }
 8131        } else {
 8132            return Ok(false); // unreachable!() hopefully
 8133        }
 8134    }
 8135
 8136    let client = cx.update(|cx| active_call.read(cx).client());
 8137
 8138    let mut client_status = client.status();
 8139
 8140    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8141    'outer: loop {
 8142        let Some(status) = client_status.recv().await else {
 8143            anyhow::bail!("error connecting");
 8144        };
 8145
 8146        match status {
 8147            Status::Connecting
 8148            | Status::Authenticating
 8149            | Status::Authenticated
 8150            | Status::Reconnecting
 8151            | Status::Reauthenticating
 8152            | Status::Reauthenticated => continue,
 8153            Status::Connected { .. } => break 'outer,
 8154            Status::SignedOut | Status::AuthenticationError => {
 8155                return Err(ErrorCode::SignedOut.into());
 8156            }
 8157            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8158            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8159                return Err(ErrorCode::Disconnected.into());
 8160            }
 8161        }
 8162    }
 8163
 8164    let room = active_call
 8165        .update(cx, |active_call, cx| {
 8166            active_call.join_channel(channel_id, cx)
 8167        })
 8168        .await?;
 8169
 8170    let Some(room) = room else {
 8171        return anyhow::Ok(true);
 8172    };
 8173
 8174    room.update(cx, |room, _| room.room_update_completed())
 8175        .await;
 8176
 8177    let task = room.update(cx, |room, cx| {
 8178        if let Some((project, host)) = room.most_active_project(cx) {
 8179            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8180        }
 8181
 8182        // If you are the first to join a channel, see if you should share your project.
 8183        if room.remote_participants().is_empty()
 8184            && !room.local_participant_is_guest()
 8185            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8186        {
 8187            let project = workspace.update(cx, |workspace, cx| {
 8188                let project = workspace.project.read(cx);
 8189
 8190                if !CallSettings::get_global(cx).share_on_join {
 8191                    return None;
 8192                }
 8193
 8194                if (project.is_local() || project.is_via_remote_server())
 8195                    && project.visible_worktrees(cx).any(|tree| {
 8196                        tree.read(cx)
 8197                            .root_entry()
 8198                            .is_some_and(|entry| entry.is_dir())
 8199                    })
 8200                {
 8201                    Some(workspace.project.clone())
 8202                } else {
 8203                    None
 8204                }
 8205            });
 8206            if let Some(project) = project {
 8207                return Some(cx.spawn(async move |room, cx| {
 8208                    room.update(cx, |room, cx| room.share_project(project, cx))?
 8209                        .await?;
 8210                    Ok(())
 8211                }));
 8212            }
 8213        }
 8214
 8215        None
 8216    });
 8217    if let Some(task) = task {
 8218        task.await?;
 8219        return anyhow::Ok(true);
 8220    }
 8221    anyhow::Ok(false)
 8222}
 8223
 8224pub fn join_channel(
 8225    channel_id: ChannelId,
 8226    app_state: Arc<AppState>,
 8227    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8228    requesting_workspace: Option<WeakEntity<Workspace>>,
 8229    cx: &mut App,
 8230) -> Task<Result<()>> {
 8231    let active_call = ActiveCall::global(cx);
 8232    cx.spawn(async move |cx| {
 8233        let result = join_channel_internal(
 8234            channel_id,
 8235            &app_state,
 8236            requesting_window,
 8237            requesting_workspace,
 8238            &active_call,
 8239            cx,
 8240        )
 8241        .await;
 8242
 8243        // join channel succeeded, and opened a window
 8244        if matches!(result, Ok(true)) {
 8245            return anyhow::Ok(());
 8246        }
 8247
 8248        // find an existing workspace to focus and show call controls
 8249        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8250        if active_window.is_none() {
 8251            // no open workspaces, make one to show the error in (blergh)
 8252            let (window_handle, _) = cx
 8253                .update(|cx| {
 8254                    Workspace::new_local(
 8255                        vec![],
 8256                        app_state.clone(),
 8257                        requesting_window,
 8258                        None,
 8259                        None,
 8260                        cx,
 8261                    )
 8262                })
 8263                .await?;
 8264
 8265            window_handle
 8266                .update(cx, |_, window, _cx| {
 8267                    window.activate_window();
 8268                })
 8269                .ok();
 8270
 8271            if result.is_ok() {
 8272                cx.update(|cx| {
 8273                    cx.dispatch_action(&OpenChannelNotes);
 8274                });
 8275            }
 8276
 8277            active_window = Some(window_handle);
 8278        }
 8279
 8280        if let Err(err) = result {
 8281            log::error!("failed to join channel: {}", err);
 8282            if let Some(active_window) = active_window {
 8283                active_window
 8284                    .update(cx, |_, window, cx| {
 8285                        let detail: SharedString = match err.error_code() {
 8286                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8287                            ErrorCode::UpgradeRequired => concat!(
 8288                                "Your are running an unsupported version of Zed. ",
 8289                                "Please update to continue."
 8290                            )
 8291                            .into(),
 8292                            ErrorCode::NoSuchChannel => concat!(
 8293                                "No matching channel was found. ",
 8294                                "Please check the link and try again."
 8295                            )
 8296                            .into(),
 8297                            ErrorCode::Forbidden => concat!(
 8298                                "This channel is private, and you do not have access. ",
 8299                                "Please ask someone to add you and try again."
 8300                            )
 8301                            .into(),
 8302                            ErrorCode::Disconnected => {
 8303                                "Please check your internet connection and try again.".into()
 8304                            }
 8305                            _ => format!("{}\n\nPlease try again.", err).into(),
 8306                        };
 8307                        window.prompt(
 8308                            PromptLevel::Critical,
 8309                            "Failed to join channel",
 8310                            Some(&detail),
 8311                            &["Ok"],
 8312                            cx,
 8313                        )
 8314                    })?
 8315                    .await
 8316                    .ok();
 8317            }
 8318        }
 8319
 8320        // return ok, we showed the error to the user.
 8321        anyhow::Ok(())
 8322    })
 8323}
 8324
 8325pub async fn get_any_active_multi_workspace(
 8326    app_state: Arc<AppState>,
 8327    mut cx: AsyncApp,
 8328) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8329    // find an existing workspace to focus and show call controls
 8330    let active_window = activate_any_workspace_window(&mut cx);
 8331    if active_window.is_none() {
 8332        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 8333            .await?;
 8334    }
 8335    activate_any_workspace_window(&mut cx).context("could not open zed")
 8336}
 8337
 8338fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8339    cx.update(|cx| {
 8340        if let Some(workspace_window) = cx
 8341            .active_window()
 8342            .and_then(|window| window.downcast::<MultiWorkspace>())
 8343        {
 8344            return Some(workspace_window);
 8345        }
 8346
 8347        for window in cx.windows() {
 8348            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8349                workspace_window
 8350                    .update(cx, |_, window, _| window.activate_window())
 8351                    .ok();
 8352                return Some(workspace_window);
 8353            }
 8354        }
 8355        None
 8356    })
 8357}
 8358
 8359pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8360    workspace_windows_for_location(&SerializedWorkspaceLocation::Local, cx)
 8361}
 8362
 8363pub fn workspace_windows_for_location(
 8364    serialized_location: &SerializedWorkspaceLocation,
 8365    cx: &App,
 8366) -> Vec<WindowHandle<MultiWorkspace>> {
 8367    cx.windows()
 8368        .into_iter()
 8369        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8370        .filter(|multi_workspace| {
 8371            let same_host = |left: &RemoteConnectionOptions, right: &RemoteConnectionOptions| match (left, right) {
 8372                (RemoteConnectionOptions::Ssh(a), RemoteConnectionOptions::Ssh(b)) => {
 8373                    (&a.host, &a.username, &a.port) == (&b.host, &b.username, &b.port)
 8374                }
 8375                (RemoteConnectionOptions::Wsl(a), RemoteConnectionOptions::Wsl(b)) => {
 8376                    // The WSL username is not consistently populated in the workspace location, so ignore it for now.
 8377                    a.distro_name == b.distro_name
 8378                }
 8379                (RemoteConnectionOptions::Docker(a), RemoteConnectionOptions::Docker(b)) => {
 8380                    a.container_id == b.container_id
 8381                }
 8382                #[cfg(any(test, feature = "test-support"))]
 8383                (RemoteConnectionOptions::Mock(a), RemoteConnectionOptions::Mock(b)) => {
 8384                    a.id == b.id
 8385                }
 8386                _ => false,
 8387            };
 8388
 8389            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8390                multi_workspace.workspaces().iter().any(|workspace| {
 8391                    match workspace.read(cx).workspace_location(cx) {
 8392                        WorkspaceLocation::Location(location, _) => {
 8393                            match (&location, serialized_location) {
 8394                                (
 8395                                    SerializedWorkspaceLocation::Local,
 8396                                    SerializedWorkspaceLocation::Local,
 8397                                ) => true,
 8398                                (
 8399                                    SerializedWorkspaceLocation::Remote(a),
 8400                                    SerializedWorkspaceLocation::Remote(b),
 8401                                ) => same_host(a, b),
 8402                                _ => false,
 8403                            }
 8404                        }
 8405                        _ => false,
 8406                    }
 8407                })
 8408            })
 8409        })
 8410        .collect()
 8411}
 8412
 8413pub async fn find_existing_workspace(
 8414    abs_paths: &[PathBuf],
 8415    open_options: &OpenOptions,
 8416    location: &SerializedWorkspaceLocation,
 8417    cx: &mut AsyncApp,
 8418) -> (
 8419    Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)>,
 8420    OpenVisible,
 8421) {
 8422    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 8423    let mut open_visible = OpenVisible::All;
 8424    let mut best_match = None;
 8425
 8426    if open_options.open_new_workspace != Some(true) {
 8427        cx.update(|cx| {
 8428            for window in workspace_windows_for_location(location, cx) {
 8429                if let Ok(multi_workspace) = window.read(cx) {
 8430                    for workspace in multi_workspace.workspaces() {
 8431                        let project = workspace.read(cx).project.read(cx);
 8432                        let m = project.visibility_for_paths(
 8433                            abs_paths,
 8434                            open_options.open_new_workspace == None,
 8435                            cx,
 8436                        );
 8437                        if m > best_match {
 8438                            existing = Some((window, workspace.clone()));
 8439                            best_match = m;
 8440                        } else if best_match.is_none()
 8441                            && open_options.open_new_workspace == Some(false)
 8442                        {
 8443                            existing = Some((window, workspace.clone()))
 8444                        }
 8445                    }
 8446                }
 8447            }
 8448        });
 8449
 8450        let all_paths_are_files = existing
 8451            .as_ref()
 8452            .and_then(|(_, target_workspace)| {
 8453                cx.update(|cx| {
 8454                    let workspace = target_workspace.read(cx);
 8455                    let project = workspace.project.read(cx);
 8456                    let path_style = workspace.path_style(cx);
 8457                    Some(!abs_paths.iter().any(|path| {
 8458                        let path = util::paths::SanitizedPath::new(path);
 8459                        project.worktrees(cx).any(|worktree| {
 8460                            let worktree = worktree.read(cx);
 8461                            let abs_path = worktree.abs_path();
 8462                            path_style
 8463                                .strip_prefix(path.as_ref(), abs_path.as_ref())
 8464                                .and_then(|rel| worktree.entry_for_path(&rel))
 8465                                .is_some_and(|e| e.is_dir())
 8466                        })
 8467                    }))
 8468                })
 8469            })
 8470            .unwrap_or(false);
 8471
 8472        if open_options.open_new_workspace.is_none()
 8473            && existing.is_some()
 8474            && open_options.wait
 8475            && all_paths_are_files
 8476        {
 8477            cx.update(|cx| {
 8478                let windows = workspace_windows_for_location(location, cx);
 8479                let window = cx
 8480                    .active_window()
 8481                    .and_then(|window| window.downcast::<MultiWorkspace>())
 8482                    .filter(|window| windows.contains(window))
 8483                    .or_else(|| windows.into_iter().next());
 8484                if let Some(window) = window {
 8485                    if let Ok(multi_workspace) = window.read(cx) {
 8486                        let active_workspace = multi_workspace.workspace().clone();
 8487                        existing = Some((window, active_workspace));
 8488                        open_visible = OpenVisible::None;
 8489                    }
 8490                }
 8491            });
 8492        }
 8493    }
 8494    (existing, open_visible)
 8495}
 8496
 8497#[derive(Default, Clone)]
 8498pub struct OpenOptions {
 8499    pub visible: Option<OpenVisible>,
 8500    pub focus: Option<bool>,
 8501    pub open_new_workspace: Option<bool>,
 8502    pub wait: bool,
 8503    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 8504    pub env: Option<HashMap<String, String>>,
 8505}
 8506
 8507/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 8508pub fn open_workspace_by_id(
 8509    workspace_id: WorkspaceId,
 8510    app_state: Arc<AppState>,
 8511    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8512    cx: &mut App,
 8513) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 8514    let project_handle = Project::local(
 8515        app_state.client.clone(),
 8516        app_state.node_runtime.clone(),
 8517        app_state.user_store.clone(),
 8518        app_state.languages.clone(),
 8519        app_state.fs.clone(),
 8520        None,
 8521        project::LocalProjectFlags {
 8522            init_worktree_trust: true,
 8523            ..project::LocalProjectFlags::default()
 8524        },
 8525        cx,
 8526    );
 8527
 8528    cx.spawn(async move |cx| {
 8529        let serialized_workspace = persistence::DB
 8530            .workspace_for_id(workspace_id)
 8531            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 8532
 8533        let centered_layout = serialized_workspace.centered_layout;
 8534
 8535        let (window, workspace) = if let Some(window) = requesting_window {
 8536            let workspace = window.update(cx, |multi_workspace, window, cx| {
 8537                let workspace = cx.new(|cx| {
 8538                    let mut workspace = Workspace::new(
 8539                        Some(workspace_id),
 8540                        project_handle.clone(),
 8541                        app_state.clone(),
 8542                        window,
 8543                        cx,
 8544                    );
 8545                    workspace.centered_layout = centered_layout;
 8546                    workspace
 8547                });
 8548                multi_workspace.add_workspace(workspace.clone(), cx);
 8549                workspace
 8550            })?;
 8551            (window, workspace)
 8552        } else {
 8553            let window_bounds_override = window_bounds_env_override();
 8554
 8555            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 8556                (Some(WindowBounds::Windowed(bounds)), None)
 8557            } else if let Some(display) = serialized_workspace.display
 8558                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 8559            {
 8560                (Some(bounds.0), Some(display))
 8561            } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 8562                (Some(bounds), Some(display))
 8563            } else {
 8564                (None, None)
 8565            };
 8566
 8567            let options = cx.update(|cx| {
 8568                let mut options = (app_state.build_window_options)(display, cx);
 8569                options.window_bounds = window_bounds;
 8570                options
 8571            });
 8572
 8573            let window = cx.open_window(options, {
 8574                let app_state = app_state.clone();
 8575                let project_handle = project_handle.clone();
 8576                move |window, cx| {
 8577                    let workspace = cx.new(|cx| {
 8578                        let mut workspace = Workspace::new(
 8579                            Some(workspace_id),
 8580                            project_handle,
 8581                            app_state,
 8582                            window,
 8583                            cx,
 8584                        );
 8585                        workspace.centered_layout = centered_layout;
 8586                        workspace
 8587                    });
 8588                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 8589                }
 8590            })?;
 8591
 8592            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 8593                multi_workspace.workspace().clone()
 8594            })?;
 8595
 8596            (window, workspace)
 8597        };
 8598
 8599        notify_if_database_failed(window, cx);
 8600
 8601        // Restore items from the serialized workspace
 8602        window
 8603            .update(cx, |_, window, cx| {
 8604                workspace.update(cx, |_workspace, cx| {
 8605                    open_items(Some(serialized_workspace), vec![], window, cx)
 8606                })
 8607            })?
 8608            .await?;
 8609
 8610        window.update(cx, |_, window, cx| {
 8611            workspace.update(cx, |workspace, cx| {
 8612                workspace.serialize_workspace(window, cx);
 8613            });
 8614        })?;
 8615
 8616        Ok(window)
 8617    })
 8618}
 8619
 8620#[allow(clippy::type_complexity)]
 8621pub fn open_paths(
 8622    abs_paths: &[PathBuf],
 8623    app_state: Arc<AppState>,
 8624    open_options: OpenOptions,
 8625    cx: &mut App,
 8626) -> Task<
 8627    anyhow::Result<(
 8628        WindowHandle<MultiWorkspace>,
 8629        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8630    )>,
 8631> {
 8632    let abs_paths = abs_paths.to_vec();
 8633    #[cfg(target_os = "windows")]
 8634    let wsl_path = abs_paths
 8635        .iter()
 8636        .find_map(|p| util::paths::WslPath::from_path(p));
 8637
 8638    cx.spawn(async move |cx| {
 8639        let (mut existing, mut open_visible) = find_existing_workspace(
 8640            &abs_paths,
 8641            &open_options,
 8642            &SerializedWorkspaceLocation::Local,
 8643            cx,
 8644        )
 8645        .await;
 8646
 8647        // Fallback: if no workspace contains the paths and all paths are files,
 8648        // prefer an existing local workspace window (active window first).
 8649        if open_options.open_new_workspace.is_none() && existing.is_none() {
 8650            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8651            let all_metadatas = futures::future::join_all(all_paths)
 8652                .await
 8653                .into_iter()
 8654                .filter_map(|result| result.ok().flatten())
 8655                .collect::<Vec<_>>();
 8656
 8657            if all_metadatas.iter().all(|file| !file.is_dir) {
 8658                cx.update(|cx| {
 8659                    let windows = workspace_windows_for_location(
 8660                        &SerializedWorkspaceLocation::Local,
 8661                        cx,
 8662                    );
 8663                    let window = cx
 8664                        .active_window()
 8665                        .and_then(|window| window.downcast::<MultiWorkspace>())
 8666                        .filter(|window| windows.contains(window))
 8667                        .or_else(|| windows.into_iter().next());
 8668                    if let Some(window) = window {
 8669                        if let Ok(multi_workspace) = window.read(cx) {
 8670                            let active_workspace = multi_workspace.workspace().clone();
 8671                            existing = Some((window, active_workspace));
 8672                            open_visible = OpenVisible::None;
 8673                        }
 8674                    }
 8675                });
 8676            }
 8677        }
 8678
 8679        let result = if let Some((existing, target_workspace)) = existing {
 8680            let open_task = existing
 8681                .update(cx, |multi_workspace, window, cx| {
 8682                    window.activate_window();
 8683                    multi_workspace.activate(target_workspace.clone(), cx);
 8684                    target_workspace.update(cx, |workspace, cx| {
 8685                        workspace.open_paths(
 8686                            abs_paths,
 8687                            OpenOptions {
 8688                                visible: Some(open_visible),
 8689                                ..Default::default()
 8690                            },
 8691                            None,
 8692                            window,
 8693                            cx,
 8694                        )
 8695                    })
 8696                })?
 8697                .await;
 8698
 8699            _ = existing.update(cx, |multi_workspace, _, cx| {
 8700                let workspace = multi_workspace.workspace().clone();
 8701                workspace.update(cx, |workspace, cx| {
 8702                    for item in open_task.iter().flatten() {
 8703                        if let Err(e) = item {
 8704                            workspace.show_error(&e, cx);
 8705                        }
 8706                    }
 8707                });
 8708            });
 8709
 8710            Ok((existing, open_task))
 8711        } else {
 8712            let result = cx
 8713                .update(move |cx| {
 8714                    Workspace::new_local(
 8715                        abs_paths,
 8716                        app_state.clone(),
 8717                        open_options.replace_window,
 8718                        open_options.env,
 8719                        None,
 8720                        cx,
 8721                    )
 8722                })
 8723                .await;
 8724
 8725            if let Ok((ref window_handle, _)) = result {
 8726                window_handle
 8727                    .update(cx, |_, window, _cx| {
 8728                        window.activate_window();
 8729                    })
 8730                    .log_err();
 8731            }
 8732
 8733            result
 8734        };
 8735
 8736        #[cfg(target_os = "windows")]
 8737        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8738            && let Ok((multi_workspace_window, _)) = &result
 8739        {
 8740            multi_workspace_window
 8741                .update(cx, move |multi_workspace, _window, cx| {
 8742                    struct OpenInWsl;
 8743                    let workspace = multi_workspace.workspace().clone();
 8744                    workspace.update(cx, |workspace, cx| {
 8745                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8746                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8747                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8748                            cx.new(move |cx| {
 8749                                MessageNotification::new(msg, cx)
 8750                                    .primary_message("Open in WSL")
 8751                                    .primary_icon(IconName::FolderOpen)
 8752                                    .primary_on_click(move |window, cx| {
 8753                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 8754                                                distro: remote::WslConnectionOptions {
 8755                                                        distro_name: distro.clone(),
 8756                                                    user: None,
 8757                                                },
 8758                                                paths: vec![path.clone().into()],
 8759                                            }), cx)
 8760                                    })
 8761                            })
 8762                        });
 8763                    });
 8764                })
 8765                .unwrap();
 8766        };
 8767        result
 8768    })
 8769}
 8770
 8771pub fn open_new(
 8772    open_options: OpenOptions,
 8773    app_state: Arc<AppState>,
 8774    cx: &mut App,
 8775    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8776) -> Task<anyhow::Result<()>> {
 8777    let task = Workspace::new_local(
 8778        Vec::new(),
 8779        app_state,
 8780        open_options.replace_window,
 8781        open_options.env,
 8782        Some(Box::new(init)),
 8783        cx,
 8784    );
 8785    cx.spawn(async move |cx| {
 8786        let (window, _opened_paths) = task.await?;
 8787        window
 8788            .update(cx, |_, window, _cx| {
 8789                window.activate_window();
 8790            })
 8791            .ok();
 8792        Ok(())
 8793    })
 8794}
 8795
 8796pub fn create_and_open_local_file(
 8797    path: &'static Path,
 8798    window: &mut Window,
 8799    cx: &mut Context<Workspace>,
 8800    default_content: impl 'static + Send + FnOnce() -> Rope,
 8801) -> Task<Result<Box<dyn ItemHandle>>> {
 8802    cx.spawn_in(window, async move |workspace, cx| {
 8803        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8804        if !fs.is_file(path).await {
 8805            fs.create_file(path, Default::default()).await?;
 8806            fs.save(path, &default_content(), Default::default())
 8807                .await?;
 8808        }
 8809
 8810        workspace
 8811            .update_in(cx, |workspace, window, cx| {
 8812                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 8813                    let path = workspace
 8814                        .project
 8815                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 8816                    cx.spawn_in(window, async move |workspace, cx| {
 8817                        let path = path.await?;
 8818                        let mut items = workspace
 8819                            .update_in(cx, |workspace, window, cx| {
 8820                                workspace.open_paths(
 8821                                    vec![path.to_path_buf()],
 8822                                    OpenOptions {
 8823                                        visible: Some(OpenVisible::None),
 8824                                        ..Default::default()
 8825                                    },
 8826                                    None,
 8827                                    window,
 8828                                    cx,
 8829                                )
 8830                            })?
 8831                            .await;
 8832                        let item = items.pop().flatten();
 8833                        item.with_context(|| format!("path {path:?} is not a file"))?
 8834                    })
 8835                })
 8836            })?
 8837            .await?
 8838            .await
 8839    })
 8840}
 8841
 8842pub fn open_remote_project_with_new_connection(
 8843    window: WindowHandle<MultiWorkspace>,
 8844    remote_connection: Arc<dyn RemoteConnection>,
 8845    cancel_rx: oneshot::Receiver<()>,
 8846    delegate: Arc<dyn RemoteClientDelegate>,
 8847    app_state: Arc<AppState>,
 8848    paths: Vec<PathBuf>,
 8849    cx: &mut App,
 8850) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8851    cx.spawn(async move |cx| {
 8852        let (workspace_id, serialized_workspace) =
 8853            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8854                .await?;
 8855
 8856        let session = match cx
 8857            .update(|cx| {
 8858                remote::RemoteClient::new(
 8859                    ConnectionIdentifier::Workspace(workspace_id.0),
 8860                    remote_connection,
 8861                    cancel_rx,
 8862                    delegate,
 8863                    cx,
 8864                )
 8865            })
 8866            .await?
 8867        {
 8868            Some(result) => result,
 8869            None => return Ok(Vec::new()),
 8870        };
 8871
 8872        let project = cx.update(|cx| {
 8873            project::Project::remote(
 8874                session,
 8875                app_state.client.clone(),
 8876                app_state.node_runtime.clone(),
 8877                app_state.user_store.clone(),
 8878                app_state.languages.clone(),
 8879                app_state.fs.clone(),
 8880                true,
 8881                cx,
 8882            )
 8883        });
 8884
 8885        open_remote_project_inner(
 8886            project,
 8887            paths,
 8888            workspace_id,
 8889            serialized_workspace,
 8890            app_state,
 8891            window,
 8892            cx,
 8893        )
 8894        .await
 8895    })
 8896}
 8897
 8898pub fn open_remote_project_with_existing_connection(
 8899    connection_options: RemoteConnectionOptions,
 8900    project: Entity<Project>,
 8901    paths: Vec<PathBuf>,
 8902    app_state: Arc<AppState>,
 8903    window: WindowHandle<MultiWorkspace>,
 8904    cx: &mut AsyncApp,
 8905) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8906    cx.spawn(async move |cx| {
 8907        let (workspace_id, serialized_workspace) =
 8908            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8909
 8910        open_remote_project_inner(
 8911            project,
 8912            paths,
 8913            workspace_id,
 8914            serialized_workspace,
 8915            app_state,
 8916            window,
 8917            cx,
 8918        )
 8919        .await
 8920    })
 8921}
 8922
 8923async fn open_remote_project_inner(
 8924    project: Entity<Project>,
 8925    paths: Vec<PathBuf>,
 8926    workspace_id: WorkspaceId,
 8927    serialized_workspace: Option<SerializedWorkspace>,
 8928    app_state: Arc<AppState>,
 8929    window: WindowHandle<MultiWorkspace>,
 8930    cx: &mut AsyncApp,
 8931) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8932    let toolchains = DB.toolchains(workspace_id).await?;
 8933    for (toolchain, worktree_path, path) in toolchains {
 8934        project
 8935            .update(cx, |this, cx| {
 8936                let Some(worktree_id) =
 8937                    this.find_worktree(&worktree_path, cx)
 8938                        .and_then(|(worktree, rel_path)| {
 8939                            if rel_path.is_empty() {
 8940                                Some(worktree.read(cx).id())
 8941                            } else {
 8942                                None
 8943                            }
 8944                        })
 8945                else {
 8946                    return Task::ready(None);
 8947                };
 8948
 8949                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8950            })
 8951            .await;
 8952    }
 8953    let mut project_paths_to_open = vec![];
 8954    let mut project_path_errors = vec![];
 8955
 8956    for path in paths {
 8957        let result = cx
 8958            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8959            .await;
 8960        match result {
 8961            Ok((_, project_path)) => {
 8962                project_paths_to_open.push((path.clone(), Some(project_path)));
 8963            }
 8964            Err(error) => {
 8965                project_path_errors.push(error);
 8966            }
 8967        };
 8968    }
 8969
 8970    if project_paths_to_open.is_empty() {
 8971        return Err(project_path_errors.pop().context("no paths given")?);
 8972    }
 8973
 8974    let workspace = window.update(cx, |multi_workspace, window, cx| {
 8975        telemetry::event!("SSH Project Opened");
 8976
 8977        let new_workspace = cx.new(|cx| {
 8978            let mut workspace =
 8979                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8980            workspace.update_history(cx);
 8981
 8982            if let Some(ref serialized) = serialized_workspace {
 8983                workspace.centered_layout = serialized.centered_layout;
 8984            }
 8985
 8986            workspace
 8987        });
 8988
 8989        multi_workspace.activate(new_workspace.clone(), cx);
 8990        new_workspace
 8991    })?;
 8992
 8993    let items = window
 8994        .update(cx, |_, window, cx| {
 8995            window.activate_window();
 8996            workspace.update(cx, |_workspace, cx| {
 8997                open_items(serialized_workspace, project_paths_to_open, window, cx)
 8998            })
 8999        })?
 9000        .await?;
 9001
 9002    workspace.update(cx, |workspace, cx| {
 9003        for error in project_path_errors {
 9004            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 9005                if let Some(path) = error.error_tag("path") {
 9006                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 9007                }
 9008            } else {
 9009                workspace.show_error(&error, cx)
 9010            }
 9011        }
 9012    });
 9013
 9014    Ok(items.into_iter().map(|item| item?.ok()).collect())
 9015}
 9016
 9017fn deserialize_remote_project(
 9018    connection_options: RemoteConnectionOptions,
 9019    paths: Vec<PathBuf>,
 9020    cx: &AsyncApp,
 9021) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 9022    cx.background_spawn(async move {
 9023        let remote_connection_id = persistence::DB
 9024            .get_or_create_remote_connection(connection_options)
 9025            .await?;
 9026
 9027        let serialized_workspace =
 9028            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9029
 9030        let workspace_id = if let Some(workspace_id) =
 9031            serialized_workspace.as_ref().map(|workspace| workspace.id)
 9032        {
 9033            workspace_id
 9034        } else {
 9035            persistence::DB.next_id().await?
 9036        };
 9037
 9038        Ok((workspace_id, serialized_workspace))
 9039    })
 9040}
 9041
 9042pub fn join_in_room_project(
 9043    project_id: u64,
 9044    follow_user_id: u64,
 9045    app_state: Arc<AppState>,
 9046    cx: &mut App,
 9047) -> Task<Result<()>> {
 9048    let windows = cx.windows();
 9049    cx.spawn(async move |cx| {
 9050        let existing_window_and_workspace: Option<(
 9051            WindowHandle<MultiWorkspace>,
 9052            Entity<Workspace>,
 9053        )> = windows.into_iter().find_map(|window_handle| {
 9054            window_handle
 9055                .downcast::<MultiWorkspace>()
 9056                .and_then(|window_handle| {
 9057                    window_handle
 9058                        .update(cx, |multi_workspace, _window, cx| {
 9059                            for workspace in multi_workspace.workspaces() {
 9060                                if workspace.read(cx).project().read(cx).remote_id()
 9061                                    == Some(project_id)
 9062                                {
 9063                                    return Some((window_handle, workspace.clone()));
 9064                                }
 9065                            }
 9066                            None
 9067                        })
 9068                        .unwrap_or(None)
 9069                })
 9070        });
 9071
 9072        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 9073            existing_window_and_workspace
 9074        {
 9075            existing_window
 9076                .update(cx, |multi_workspace, _, cx| {
 9077                    multi_workspace.activate(target_workspace, cx);
 9078                })
 9079                .ok();
 9080            existing_window
 9081        } else {
 9082            let active_call = cx.update(|cx| ActiveCall::global(cx));
 9083            let room = active_call
 9084                .read_with(cx, |call, _| call.room().cloned())
 9085                .context("not in a call")?;
 9086            let project = room
 9087                .update(cx, |room, cx| {
 9088                    room.join_project(
 9089                        project_id,
 9090                        app_state.languages.clone(),
 9091                        app_state.fs.clone(),
 9092                        cx,
 9093                    )
 9094                })
 9095                .await?;
 9096
 9097            let window_bounds_override = window_bounds_env_override();
 9098            cx.update(|cx| {
 9099                let mut options = (app_state.build_window_options)(None, cx);
 9100                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 9101                cx.open_window(options, |window, cx| {
 9102                    let workspace = cx.new(|cx| {
 9103                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 9104                    });
 9105                    cx.new(|cx| MultiWorkspace::new(workspace, window, cx))
 9106                })
 9107            })?
 9108        };
 9109
 9110        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 9111            cx.activate(true);
 9112            window.activate_window();
 9113
 9114            // We set the active workspace above, so this is the correct workspace.
 9115            let workspace = multi_workspace.workspace().clone();
 9116            workspace.update(cx, |workspace, cx| {
 9117                if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 9118                    let follow_peer_id = room
 9119                        .read(cx)
 9120                        .remote_participants()
 9121                        .iter()
 9122                        .find(|(_, participant)| participant.user.id == follow_user_id)
 9123                        .map(|(_, p)| p.peer_id)
 9124                        .or_else(|| {
 9125                            // If we couldn't follow the given user, follow the host instead.
 9126                            let collaborator = workspace
 9127                                .project()
 9128                                .read(cx)
 9129                                .collaborators()
 9130                                .values()
 9131                                .find(|collaborator| collaborator.is_host)?;
 9132                            Some(collaborator.peer_id)
 9133                        });
 9134
 9135                    if let Some(follow_peer_id) = follow_peer_id {
 9136                        workspace.follow(follow_peer_id, window, cx);
 9137                    }
 9138                }
 9139            });
 9140        })?;
 9141
 9142        anyhow::Ok(())
 9143    })
 9144}
 9145
 9146pub fn reload(cx: &mut App) {
 9147    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9148    let mut workspace_windows = cx
 9149        .windows()
 9150        .into_iter()
 9151        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9152        .collect::<Vec<_>>();
 9153
 9154    // If multiple windows have unsaved changes, and need a save prompt,
 9155    // prompt in the active window before switching to a different window.
 9156    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9157
 9158    let mut prompt = None;
 9159    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9160        prompt = window
 9161            .update(cx, |_, window, cx| {
 9162                window.prompt(
 9163                    PromptLevel::Info,
 9164                    "Are you sure you want to restart?",
 9165                    None,
 9166                    &["Restart", "Cancel"],
 9167                    cx,
 9168                )
 9169            })
 9170            .ok();
 9171    }
 9172
 9173    cx.spawn(async move |cx| {
 9174        if let Some(prompt) = prompt {
 9175            let answer = prompt.await?;
 9176            if answer != 0 {
 9177                return anyhow::Ok(());
 9178            }
 9179        }
 9180
 9181        // If the user cancels any save prompt, then keep the app open.
 9182        for window in workspace_windows {
 9183            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9184                let workspace = multi_workspace.workspace().clone();
 9185                workspace.update(cx, |workspace, cx| {
 9186                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9187                })
 9188            }) && !should_close.await?
 9189            {
 9190                return anyhow::Ok(());
 9191            }
 9192        }
 9193        cx.update(|cx| cx.restart());
 9194        anyhow::Ok(())
 9195    })
 9196    .detach_and_log_err(cx);
 9197}
 9198
 9199fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9200    let mut parts = value.split(',');
 9201    let x: usize = parts.next()?.parse().ok()?;
 9202    let y: usize = parts.next()?.parse().ok()?;
 9203    Some(point(px(x as f32), px(y as f32)))
 9204}
 9205
 9206fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9207    let mut parts = value.split(',');
 9208    let width: usize = parts.next()?.parse().ok()?;
 9209    let height: usize = parts.next()?.parse().ok()?;
 9210    Some(size(px(width as f32), px(height as f32)))
 9211}
 9212
 9213/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9214/// appropriate.
 9215///
 9216/// The `border_radius_tiling` parameter allows overriding which corners get
 9217/// rounded, independently of the actual window tiling state. This is used
 9218/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9219/// we want square corners on the left (so the sidebar appears flush with the
 9220/// window edge) but we still need the shadow padding for proper visual
 9221/// appearance. Unlike actual window tiling, this only affects border radius -
 9222/// not padding or shadows.
 9223pub fn client_side_decorations(
 9224    element: impl IntoElement,
 9225    window: &mut Window,
 9226    cx: &mut App,
 9227    border_radius_tiling: Tiling,
 9228) -> Stateful<Div> {
 9229    const BORDER_SIZE: Pixels = px(1.0);
 9230    let decorations = window.window_decorations();
 9231    let tiling = match decorations {
 9232        Decorations::Server => Tiling::default(),
 9233        Decorations::Client { tiling } => tiling,
 9234    };
 9235
 9236    match decorations {
 9237        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9238        Decorations::Server => window.set_client_inset(px(0.0)),
 9239    }
 9240
 9241    struct GlobalResizeEdge(ResizeEdge);
 9242    impl Global for GlobalResizeEdge {}
 9243
 9244    div()
 9245        .id("window-backdrop")
 9246        .bg(transparent_black())
 9247        .map(|div| match decorations {
 9248            Decorations::Server => div,
 9249            Decorations::Client { .. } => div
 9250                .when(
 9251                    !(tiling.top
 9252                        || tiling.right
 9253                        || border_radius_tiling.top
 9254                        || border_radius_tiling.right),
 9255                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9256                )
 9257                .when(
 9258                    !(tiling.top
 9259                        || tiling.left
 9260                        || border_radius_tiling.top
 9261                        || border_radius_tiling.left),
 9262                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9263                )
 9264                .when(
 9265                    !(tiling.bottom
 9266                        || tiling.right
 9267                        || border_radius_tiling.bottom
 9268                        || border_radius_tiling.right),
 9269                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9270                )
 9271                .when(
 9272                    !(tiling.bottom
 9273                        || tiling.left
 9274                        || border_radius_tiling.bottom
 9275                        || border_radius_tiling.left),
 9276                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9277                )
 9278                .when(!tiling.top, |div| {
 9279                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9280                })
 9281                .when(!tiling.bottom, |div| {
 9282                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9283                })
 9284                .when(!tiling.left, |div| {
 9285                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9286                })
 9287                .when(!tiling.right, |div| {
 9288                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9289                })
 9290                .on_mouse_move(move |e, window, cx| {
 9291                    let size = window.window_bounds().get_bounds().size;
 9292                    let pos = e.position;
 9293
 9294                    let new_edge =
 9295                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9296
 9297                    let edge = cx.try_global::<GlobalResizeEdge>();
 9298                    if new_edge != edge.map(|edge| edge.0) {
 9299                        window
 9300                            .window_handle()
 9301                            .update(cx, |workspace, _, cx| {
 9302                                cx.notify(workspace.entity_id());
 9303                            })
 9304                            .ok();
 9305                    }
 9306                })
 9307                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9308                    let size = window.window_bounds().get_bounds().size;
 9309                    let pos = e.position;
 9310
 9311                    let edge = match resize_edge(
 9312                        pos,
 9313                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9314                        size,
 9315                        tiling,
 9316                    ) {
 9317                        Some(value) => value,
 9318                        None => return,
 9319                    };
 9320
 9321                    window.start_window_resize(edge);
 9322                }),
 9323        })
 9324        .size_full()
 9325        .child(
 9326            div()
 9327                .cursor(CursorStyle::Arrow)
 9328                .map(|div| match decorations {
 9329                    Decorations::Server => div,
 9330                    Decorations::Client { .. } => div
 9331                        .border_color(cx.theme().colors().border)
 9332                        .when(
 9333                            !(tiling.top
 9334                                || tiling.right
 9335                                || border_radius_tiling.top
 9336                                || border_radius_tiling.right),
 9337                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9338                        )
 9339                        .when(
 9340                            !(tiling.top
 9341                                || tiling.left
 9342                                || border_radius_tiling.top
 9343                                || border_radius_tiling.left),
 9344                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9345                        )
 9346                        .when(
 9347                            !(tiling.bottom
 9348                                || tiling.right
 9349                                || border_radius_tiling.bottom
 9350                                || border_radius_tiling.right),
 9351                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9352                        )
 9353                        .when(
 9354                            !(tiling.bottom
 9355                                || tiling.left
 9356                                || border_radius_tiling.bottom
 9357                                || border_radius_tiling.left),
 9358                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9359                        )
 9360                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9361                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9362                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9363                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9364                        .when(!tiling.is_tiled(), |div| {
 9365                            div.shadow(vec![gpui::BoxShadow {
 9366                                color: Hsla {
 9367                                    h: 0.,
 9368                                    s: 0.,
 9369                                    l: 0.,
 9370                                    a: 0.4,
 9371                                },
 9372                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9373                                spread_radius: px(0.),
 9374                                offset: point(px(0.0), px(0.0)),
 9375                            }])
 9376                        }),
 9377                })
 9378                .on_mouse_move(|_e, _, cx| {
 9379                    cx.stop_propagation();
 9380                })
 9381                .size_full()
 9382                .child(element),
 9383        )
 9384        .map(|div| match decorations {
 9385            Decorations::Server => div,
 9386            Decorations::Client { tiling, .. } => div.child(
 9387                canvas(
 9388                    |_bounds, window, _| {
 9389                        window.insert_hitbox(
 9390                            Bounds::new(
 9391                                point(px(0.0), px(0.0)),
 9392                                window.window_bounds().get_bounds().size,
 9393                            ),
 9394                            HitboxBehavior::Normal,
 9395                        )
 9396                    },
 9397                    move |_bounds, hitbox, window, cx| {
 9398                        let mouse = window.mouse_position();
 9399                        let size = window.window_bounds().get_bounds().size;
 9400                        let Some(edge) =
 9401                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 9402                        else {
 9403                            return;
 9404                        };
 9405                        cx.set_global(GlobalResizeEdge(edge));
 9406                        window.set_cursor_style(
 9407                            match edge {
 9408                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 9409                                ResizeEdge::Left | ResizeEdge::Right => {
 9410                                    CursorStyle::ResizeLeftRight
 9411                                }
 9412                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 9413                                    CursorStyle::ResizeUpLeftDownRight
 9414                                }
 9415                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 9416                                    CursorStyle::ResizeUpRightDownLeft
 9417                                }
 9418                            },
 9419                            &hitbox,
 9420                        );
 9421                    },
 9422                )
 9423                .size_full()
 9424                .absolute(),
 9425            ),
 9426        })
 9427}
 9428
 9429fn resize_edge(
 9430    pos: Point<Pixels>,
 9431    shadow_size: Pixels,
 9432    window_size: Size<Pixels>,
 9433    tiling: Tiling,
 9434) -> Option<ResizeEdge> {
 9435    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9436    if bounds.contains(&pos) {
 9437        return None;
 9438    }
 9439
 9440    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9441    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 9442    if !tiling.top && top_left_bounds.contains(&pos) {
 9443        return Some(ResizeEdge::TopLeft);
 9444    }
 9445
 9446    let top_right_bounds = Bounds::new(
 9447        Point::new(window_size.width - corner_size.width, px(0.)),
 9448        corner_size,
 9449    );
 9450    if !tiling.top && top_right_bounds.contains(&pos) {
 9451        return Some(ResizeEdge::TopRight);
 9452    }
 9453
 9454    let bottom_left_bounds = Bounds::new(
 9455        Point::new(px(0.), window_size.height - corner_size.height),
 9456        corner_size,
 9457    );
 9458    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 9459        return Some(ResizeEdge::BottomLeft);
 9460    }
 9461
 9462    let bottom_right_bounds = Bounds::new(
 9463        Point::new(
 9464            window_size.width - corner_size.width,
 9465            window_size.height - corner_size.height,
 9466        ),
 9467        corner_size,
 9468    );
 9469    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 9470        return Some(ResizeEdge::BottomRight);
 9471    }
 9472
 9473    if !tiling.top && pos.y < shadow_size {
 9474        Some(ResizeEdge::Top)
 9475    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 9476        Some(ResizeEdge::Bottom)
 9477    } else if !tiling.left && pos.x < shadow_size {
 9478        Some(ResizeEdge::Left)
 9479    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 9480        Some(ResizeEdge::Right)
 9481    } else {
 9482        None
 9483    }
 9484}
 9485
 9486fn join_pane_into_active(
 9487    active_pane: &Entity<Pane>,
 9488    pane: &Entity<Pane>,
 9489    window: &mut Window,
 9490    cx: &mut App,
 9491) {
 9492    if pane == active_pane {
 9493    } else if pane.read(cx).items_len() == 0 {
 9494        pane.update(cx, |_, cx| {
 9495            cx.emit(pane::Event::Remove {
 9496                focus_on_pane: None,
 9497            });
 9498        })
 9499    } else {
 9500        move_all_items(pane, active_pane, window, cx);
 9501    }
 9502}
 9503
 9504fn move_all_items(
 9505    from_pane: &Entity<Pane>,
 9506    to_pane: &Entity<Pane>,
 9507    window: &mut Window,
 9508    cx: &mut App,
 9509) {
 9510    let destination_is_different = from_pane != to_pane;
 9511    let mut moved_items = 0;
 9512    for (item_ix, item_handle) in from_pane
 9513        .read(cx)
 9514        .items()
 9515        .enumerate()
 9516        .map(|(ix, item)| (ix, item.clone()))
 9517        .collect::<Vec<_>>()
 9518    {
 9519        let ix = item_ix - moved_items;
 9520        if destination_is_different {
 9521            // Close item from previous pane
 9522            from_pane.update(cx, |source, cx| {
 9523                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 9524            });
 9525            moved_items += 1;
 9526        }
 9527
 9528        // This automatically removes duplicate items in the pane
 9529        to_pane.update(cx, |destination, cx| {
 9530            destination.add_item(item_handle, true, true, None, window, cx);
 9531            window.focus(&destination.focus_handle(cx), cx)
 9532        });
 9533    }
 9534}
 9535
 9536pub fn move_item(
 9537    source: &Entity<Pane>,
 9538    destination: &Entity<Pane>,
 9539    item_id_to_move: EntityId,
 9540    destination_index: usize,
 9541    activate: bool,
 9542    window: &mut Window,
 9543    cx: &mut App,
 9544) {
 9545    let Some((item_ix, item_handle)) = source
 9546        .read(cx)
 9547        .items()
 9548        .enumerate()
 9549        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 9550        .map(|(ix, item)| (ix, item.clone()))
 9551    else {
 9552        // Tab was closed during drag
 9553        return;
 9554    };
 9555
 9556    if source != destination {
 9557        // Close item from previous pane
 9558        source.update(cx, |source, cx| {
 9559            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9560        });
 9561    }
 9562
 9563    // This automatically removes duplicate items in the pane
 9564    destination.update(cx, |destination, cx| {
 9565        destination.add_item_inner(
 9566            item_handle,
 9567            activate,
 9568            activate,
 9569            activate,
 9570            Some(destination_index),
 9571            window,
 9572            cx,
 9573        );
 9574        if activate {
 9575            window.focus(&destination.focus_handle(cx), cx)
 9576        }
 9577    });
 9578}
 9579
 9580pub fn move_active_item(
 9581    source: &Entity<Pane>,
 9582    destination: &Entity<Pane>,
 9583    focus_destination: bool,
 9584    close_if_empty: bool,
 9585    window: &mut Window,
 9586    cx: &mut App,
 9587) {
 9588    if source == destination {
 9589        return;
 9590    }
 9591    let Some(active_item) = source.read(cx).active_item() else {
 9592        return;
 9593    };
 9594    source.update(cx, |source_pane, cx| {
 9595        let item_id = active_item.item_id();
 9596        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9597        destination.update(cx, |target_pane, cx| {
 9598            target_pane.add_item(
 9599                active_item,
 9600                focus_destination,
 9601                focus_destination,
 9602                Some(target_pane.items_len()),
 9603                window,
 9604                cx,
 9605            );
 9606        });
 9607    });
 9608}
 9609
 9610pub fn clone_active_item(
 9611    workspace_id: Option<WorkspaceId>,
 9612    source: &Entity<Pane>,
 9613    destination: &Entity<Pane>,
 9614    focus_destination: bool,
 9615    window: &mut Window,
 9616    cx: &mut App,
 9617) {
 9618    if source == destination {
 9619        return;
 9620    }
 9621    let Some(active_item) = source.read(cx).active_item() else {
 9622        return;
 9623    };
 9624    if !active_item.can_split(cx) {
 9625        return;
 9626    }
 9627    let destination = destination.downgrade();
 9628    let task = active_item.clone_on_split(workspace_id, window, cx);
 9629    window
 9630        .spawn(cx, async move |cx| {
 9631            let Some(clone) = task.await else {
 9632                return;
 9633            };
 9634            destination
 9635                .update_in(cx, |target_pane, window, cx| {
 9636                    target_pane.add_item(
 9637                        clone,
 9638                        focus_destination,
 9639                        focus_destination,
 9640                        Some(target_pane.items_len()),
 9641                        window,
 9642                        cx,
 9643                    );
 9644                })
 9645                .log_err();
 9646        })
 9647        .detach();
 9648}
 9649
 9650#[derive(Debug)]
 9651pub struct WorkspacePosition {
 9652    pub window_bounds: Option<WindowBounds>,
 9653    pub display: Option<Uuid>,
 9654    pub centered_layout: bool,
 9655}
 9656
 9657pub fn remote_workspace_position_from_db(
 9658    connection_options: RemoteConnectionOptions,
 9659    paths_to_open: &[PathBuf],
 9660    cx: &App,
 9661) -> Task<Result<WorkspacePosition>> {
 9662    let paths = paths_to_open.to_vec();
 9663
 9664    cx.background_spawn(async move {
 9665        let remote_connection_id = persistence::DB
 9666            .get_or_create_remote_connection(connection_options)
 9667            .await
 9668            .context("fetching serialized ssh project")?;
 9669        let serialized_workspace =
 9670            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9671
 9672        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9673            (Some(WindowBounds::Windowed(bounds)), None)
 9674        } else {
 9675            let restorable_bounds = serialized_workspace
 9676                .as_ref()
 9677                .and_then(|workspace| {
 9678                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9679                })
 9680                .or_else(|| persistence::read_default_window_bounds());
 9681
 9682            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9683                (Some(serialized_bounds), Some(serialized_display))
 9684            } else {
 9685                (None, None)
 9686            }
 9687        };
 9688
 9689        let centered_layout = serialized_workspace
 9690            .as_ref()
 9691            .map(|w| w.centered_layout)
 9692            .unwrap_or(false);
 9693
 9694        Ok(WorkspacePosition {
 9695            window_bounds,
 9696            display,
 9697            centered_layout,
 9698        })
 9699    })
 9700}
 9701
 9702pub fn with_active_or_new_workspace(
 9703    cx: &mut App,
 9704    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9705) {
 9706    match cx
 9707        .active_window()
 9708        .and_then(|w| w.downcast::<MultiWorkspace>())
 9709    {
 9710        Some(multi_workspace) => {
 9711            cx.defer(move |cx| {
 9712                multi_workspace
 9713                    .update(cx, |multi_workspace, window, cx| {
 9714                        let workspace = multi_workspace.workspace().clone();
 9715                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
 9716                    })
 9717                    .log_err();
 9718            });
 9719        }
 9720        None => {
 9721            let app_state = AppState::global(cx);
 9722            if let Some(app_state) = app_state.upgrade() {
 9723                open_new(
 9724                    OpenOptions::default(),
 9725                    app_state,
 9726                    cx,
 9727                    move |workspace, window, cx| f(workspace, window, cx),
 9728                )
 9729                .detach_and_log_err(cx);
 9730            }
 9731        }
 9732    }
 9733}
 9734
 9735#[cfg(test)]
 9736mod tests {
 9737    use std::{cell::RefCell, rc::Rc};
 9738
 9739    use super::*;
 9740    use crate::{
 9741        dock::{PanelEvent, test::TestPanel},
 9742        item::{
 9743            ItemBufferKind, ItemEvent,
 9744            test::{TestItem, TestProjectItem},
 9745        },
 9746    };
 9747    use fs::FakeFs;
 9748    use gpui::{
 9749        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9750        UpdateGlobal, VisualTestContext, px,
 9751    };
 9752    use project::{Project, ProjectEntryId};
 9753    use serde_json::json;
 9754    use settings::SettingsStore;
 9755    use util::rel_path::rel_path;
 9756
 9757    #[gpui::test]
 9758    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9759        init_test(cx);
 9760
 9761        let fs = FakeFs::new(cx.executor());
 9762        let project = Project::test(fs, [], cx).await;
 9763        let (workspace, cx) =
 9764            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9765
 9766        // Adding an item with no ambiguity renders the tab without detail.
 9767        let item1 = cx.new(|cx| {
 9768            let mut item = TestItem::new(cx);
 9769            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9770            item
 9771        });
 9772        workspace.update_in(cx, |workspace, window, cx| {
 9773            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9774        });
 9775        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9776
 9777        // Adding an item that creates ambiguity increases the level of detail on
 9778        // both tabs.
 9779        let item2 = cx.new_window_entity(|_window, cx| {
 9780            let mut item = TestItem::new(cx);
 9781            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9782            item
 9783        });
 9784        workspace.update_in(cx, |workspace, window, cx| {
 9785            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9786        });
 9787        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9788        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9789
 9790        // Adding an item that creates ambiguity increases the level of detail only
 9791        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9792        // we stop at the highest detail available.
 9793        let item3 = cx.new(|cx| {
 9794            let mut item = TestItem::new(cx);
 9795            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9796            item
 9797        });
 9798        workspace.update_in(cx, |workspace, window, cx| {
 9799            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9800        });
 9801        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9802        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9803        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9804    }
 9805
 9806    #[gpui::test]
 9807    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9808        init_test(cx);
 9809
 9810        let fs = FakeFs::new(cx.executor());
 9811        fs.insert_tree(
 9812            "/root1",
 9813            json!({
 9814                "one.txt": "",
 9815                "two.txt": "",
 9816            }),
 9817        )
 9818        .await;
 9819        fs.insert_tree(
 9820            "/root2",
 9821            json!({
 9822                "three.txt": "",
 9823            }),
 9824        )
 9825        .await;
 9826
 9827        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9828        let (workspace, cx) =
 9829            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9830        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9831        let worktree_id = project.update(cx, |project, cx| {
 9832            project.worktrees(cx).next().unwrap().read(cx).id()
 9833        });
 9834
 9835        let item1 = cx.new(|cx| {
 9836            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9837        });
 9838        let item2 = cx.new(|cx| {
 9839            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9840        });
 9841
 9842        // Add an item to an empty pane
 9843        workspace.update_in(cx, |workspace, window, cx| {
 9844            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9845        });
 9846        project.update(cx, |project, cx| {
 9847            assert_eq!(
 9848                project.active_entry(),
 9849                project
 9850                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9851                    .map(|e| e.id)
 9852            );
 9853        });
 9854        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9855
 9856        // Add a second item to a non-empty pane
 9857        workspace.update_in(cx, |workspace, window, cx| {
 9858            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9859        });
 9860        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9861        project.update(cx, |project, cx| {
 9862            assert_eq!(
 9863                project.active_entry(),
 9864                project
 9865                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9866                    .map(|e| e.id)
 9867            );
 9868        });
 9869
 9870        // Close the active item
 9871        pane.update_in(cx, |pane, window, cx| {
 9872            pane.close_active_item(&Default::default(), window, cx)
 9873        })
 9874        .await
 9875        .unwrap();
 9876        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9877        project.update(cx, |project, cx| {
 9878            assert_eq!(
 9879                project.active_entry(),
 9880                project
 9881                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9882                    .map(|e| e.id)
 9883            );
 9884        });
 9885
 9886        // Add a project folder
 9887        project
 9888            .update(cx, |project, cx| {
 9889                project.find_or_create_worktree("root2", true, cx)
 9890            })
 9891            .await
 9892            .unwrap();
 9893        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9894
 9895        // Remove a project folder
 9896        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9897        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9898    }
 9899
 9900    #[gpui::test]
 9901    async fn test_close_window(cx: &mut TestAppContext) {
 9902        init_test(cx);
 9903
 9904        let fs = FakeFs::new(cx.executor());
 9905        fs.insert_tree("/root", json!({ "one": "" })).await;
 9906
 9907        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9908        let (workspace, cx) =
 9909            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9910
 9911        // When there are no dirty items, there's nothing to do.
 9912        let item1 = cx.new(TestItem::new);
 9913        workspace.update_in(cx, |w, window, cx| {
 9914            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9915        });
 9916        let task = workspace.update_in(cx, |w, window, cx| {
 9917            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9918        });
 9919        assert!(task.await.unwrap());
 9920
 9921        // When there are dirty untitled items, prompt to save each one. If the user
 9922        // cancels any prompt, then abort.
 9923        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9924        let item3 = cx.new(|cx| {
 9925            TestItem::new(cx)
 9926                .with_dirty(true)
 9927                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9928        });
 9929        workspace.update_in(cx, |w, window, cx| {
 9930            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9931            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9932        });
 9933        let task = workspace.update_in(cx, |w, window, cx| {
 9934            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9935        });
 9936        cx.executor().run_until_parked();
 9937        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9938        cx.executor().run_until_parked();
 9939        assert!(!cx.has_pending_prompt());
 9940        assert!(!task.await.unwrap());
 9941    }
 9942
 9943    #[gpui::test]
 9944    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9945        init_test(cx);
 9946
 9947        // Register TestItem as a serializable item
 9948        cx.update(|cx| {
 9949            register_serializable_item::<TestItem>(cx);
 9950        });
 9951
 9952        let fs = FakeFs::new(cx.executor());
 9953        fs.insert_tree("/root", json!({ "one": "" })).await;
 9954
 9955        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9956        let (workspace, cx) =
 9957            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9958
 9959        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9960        let item1 = cx.new(|cx| {
 9961            TestItem::new(cx)
 9962                .with_dirty(true)
 9963                .with_serialize(|| Some(Task::ready(Ok(()))))
 9964        });
 9965        let item2 = cx.new(|cx| {
 9966            TestItem::new(cx)
 9967                .with_dirty(true)
 9968                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9969                .with_serialize(|| Some(Task::ready(Ok(()))))
 9970        });
 9971        workspace.update_in(cx, |w, window, cx| {
 9972            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9973            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9974        });
 9975        let task = workspace.update_in(cx, |w, window, cx| {
 9976            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9977        });
 9978        assert!(task.await.unwrap());
 9979    }
 9980
 9981    #[gpui::test]
 9982    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9983        init_test(cx);
 9984
 9985        let fs = FakeFs::new(cx.executor());
 9986
 9987        let project = Project::test(fs, None, cx).await;
 9988        let (workspace, cx) =
 9989            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9990
 9991        let item1 = cx.new(|cx| {
 9992            TestItem::new(cx)
 9993                .with_dirty(true)
 9994                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9995        });
 9996        let item2 = cx.new(|cx| {
 9997            TestItem::new(cx)
 9998                .with_dirty(true)
 9999                .with_conflict(true)
10000                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
10001        });
10002        let item3 = cx.new(|cx| {
10003            TestItem::new(cx)
10004                .with_dirty(true)
10005                .with_conflict(true)
10006                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
10007        });
10008        let item4 = cx.new(|cx| {
10009            TestItem::new(cx).with_dirty(true).with_project_items(&[{
10010                let project_item = TestProjectItem::new_untitled(cx);
10011                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10012                project_item
10013            }])
10014        });
10015        let pane = workspace.update_in(cx, |workspace, window, cx| {
10016            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
10017            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
10018            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
10019            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
10020            workspace.active_pane().clone()
10021        });
10022
10023        let close_items = pane.update_in(cx, |pane, window, cx| {
10024            pane.activate_item(1, true, true, window, cx);
10025            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10026            let item1_id = item1.item_id();
10027            let item3_id = item3.item_id();
10028            let item4_id = item4.item_id();
10029            pane.close_items(window, cx, SaveIntent::Close, move |id| {
10030                [item1_id, item3_id, item4_id].contains(&id)
10031            })
10032        });
10033        cx.executor().run_until_parked();
10034
10035        assert!(cx.has_pending_prompt());
10036        cx.simulate_prompt_answer("Save all");
10037
10038        cx.executor().run_until_parked();
10039
10040        // Item 1 is saved. There's a prompt to save item 3.
10041        pane.update(cx, |pane, cx| {
10042            assert_eq!(item1.read(cx).save_count, 1);
10043            assert_eq!(item1.read(cx).save_as_count, 0);
10044            assert_eq!(item1.read(cx).reload_count, 0);
10045            assert_eq!(pane.items_len(), 3);
10046            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
10047        });
10048        assert!(cx.has_pending_prompt());
10049
10050        // Cancel saving item 3.
10051        cx.simulate_prompt_answer("Discard");
10052        cx.executor().run_until_parked();
10053
10054        // Item 3 is reloaded. There's a prompt to save item 4.
10055        pane.update(cx, |pane, cx| {
10056            assert_eq!(item3.read(cx).save_count, 0);
10057            assert_eq!(item3.read(cx).save_as_count, 0);
10058            assert_eq!(item3.read(cx).reload_count, 1);
10059            assert_eq!(pane.items_len(), 2);
10060            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
10061        });
10062
10063        // There's a prompt for a path for item 4.
10064        cx.simulate_new_path_selection(|_| Some(Default::default()));
10065        close_items.await.unwrap();
10066
10067        // The requested items are closed.
10068        pane.update(cx, |pane, cx| {
10069            assert_eq!(item4.read(cx).save_count, 0);
10070            assert_eq!(item4.read(cx).save_as_count, 1);
10071            assert_eq!(item4.read(cx).reload_count, 0);
10072            assert_eq!(pane.items_len(), 1);
10073            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
10074        });
10075    }
10076
10077    #[gpui::test]
10078    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
10079        init_test(cx);
10080
10081        let fs = FakeFs::new(cx.executor());
10082        let project = Project::test(fs, [], cx).await;
10083        let (workspace, cx) =
10084            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10085
10086        // Create several workspace items with single project entries, and two
10087        // workspace items with multiple project entries.
10088        let single_entry_items = (0..=4)
10089            .map(|project_entry_id| {
10090                cx.new(|cx| {
10091                    TestItem::new(cx)
10092                        .with_dirty(true)
10093                        .with_project_items(&[dirty_project_item(
10094                            project_entry_id,
10095                            &format!("{project_entry_id}.txt"),
10096                            cx,
10097                        )])
10098                })
10099            })
10100            .collect::<Vec<_>>();
10101        let item_2_3 = cx.new(|cx| {
10102            TestItem::new(cx)
10103                .with_dirty(true)
10104                .with_buffer_kind(ItemBufferKind::Multibuffer)
10105                .with_project_items(&[
10106                    single_entry_items[2].read(cx).project_items[0].clone(),
10107                    single_entry_items[3].read(cx).project_items[0].clone(),
10108                ])
10109        });
10110        let item_3_4 = cx.new(|cx| {
10111            TestItem::new(cx)
10112                .with_dirty(true)
10113                .with_buffer_kind(ItemBufferKind::Multibuffer)
10114                .with_project_items(&[
10115                    single_entry_items[3].read(cx).project_items[0].clone(),
10116                    single_entry_items[4].read(cx).project_items[0].clone(),
10117                ])
10118        });
10119
10120        // Create two panes that contain the following project entries:
10121        //   left pane:
10122        //     multi-entry items:   (2, 3)
10123        //     single-entry items:  0, 2, 3, 4
10124        //   right pane:
10125        //     single-entry items:  4, 1
10126        //     multi-entry items:   (3, 4)
10127        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
10128            let left_pane = workspace.active_pane().clone();
10129            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
10130            workspace.add_item_to_active_pane(
10131                single_entry_items[0].boxed_clone(),
10132                None,
10133                true,
10134                window,
10135                cx,
10136            );
10137            workspace.add_item_to_active_pane(
10138                single_entry_items[2].boxed_clone(),
10139                None,
10140                true,
10141                window,
10142                cx,
10143            );
10144            workspace.add_item_to_active_pane(
10145                single_entry_items[3].boxed_clone(),
10146                None,
10147                true,
10148                window,
10149                cx,
10150            );
10151            workspace.add_item_to_active_pane(
10152                single_entry_items[4].boxed_clone(),
10153                None,
10154                true,
10155                window,
10156                cx,
10157            );
10158
10159            let right_pane =
10160                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10161
10162            let boxed_clone = single_entry_items[1].boxed_clone();
10163            let right_pane = window.spawn(cx, async move |cx| {
10164                right_pane.await.inspect(|right_pane| {
10165                    right_pane
10166                        .update_in(cx, |pane, window, cx| {
10167                            pane.add_item(boxed_clone, true, true, None, window, cx);
10168                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10169                        })
10170                        .unwrap();
10171                })
10172            });
10173
10174            (left_pane, right_pane)
10175        });
10176        let right_pane = right_pane.await.unwrap();
10177        cx.focus(&right_pane);
10178
10179        let close = right_pane.update_in(cx, |pane, window, cx| {
10180            pane.close_all_items(&CloseAllItems::default(), window, cx)
10181                .unwrap()
10182        });
10183        cx.executor().run_until_parked();
10184
10185        let msg = cx.pending_prompt().unwrap().0;
10186        assert!(msg.contains("1.txt"));
10187        assert!(!msg.contains("2.txt"));
10188        assert!(!msg.contains("3.txt"));
10189        assert!(!msg.contains("4.txt"));
10190
10191        // With best-effort close, cancelling item 1 keeps it open but items 4
10192        // and (3,4) still close since their entries exist in left pane.
10193        cx.simulate_prompt_answer("Cancel");
10194        close.await;
10195
10196        right_pane.read_with(cx, |pane, _| {
10197            assert_eq!(pane.items_len(), 1);
10198        });
10199
10200        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10201        left_pane
10202            .update_in(cx, |left_pane, window, cx| {
10203                left_pane.close_item_by_id(
10204                    single_entry_items[3].entity_id(),
10205                    SaveIntent::Skip,
10206                    window,
10207                    cx,
10208                )
10209            })
10210            .await
10211            .unwrap();
10212
10213        let close = left_pane.update_in(cx, |pane, window, cx| {
10214            pane.close_all_items(&CloseAllItems::default(), window, cx)
10215                .unwrap()
10216        });
10217        cx.executor().run_until_parked();
10218
10219        let details = cx.pending_prompt().unwrap().1;
10220        assert!(details.contains("0.txt"));
10221        assert!(details.contains("3.txt"));
10222        assert!(details.contains("4.txt"));
10223        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10224        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10225        // assert!(!details.contains("2.txt"));
10226
10227        cx.simulate_prompt_answer("Save all");
10228        cx.executor().run_until_parked();
10229        close.await;
10230
10231        left_pane.read_with(cx, |pane, _| {
10232            assert_eq!(pane.items_len(), 0);
10233        });
10234    }
10235
10236    #[gpui::test]
10237    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10238        init_test(cx);
10239
10240        let fs = FakeFs::new(cx.executor());
10241        let project = Project::test(fs, [], cx).await;
10242        let (workspace, cx) =
10243            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10244        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10245
10246        let item = cx.new(|cx| {
10247            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10248        });
10249        let item_id = item.entity_id();
10250        workspace.update_in(cx, |workspace, window, cx| {
10251            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10252        });
10253
10254        // Autosave on window change.
10255        item.update(cx, |item, cx| {
10256            SettingsStore::update_global(cx, |settings, cx| {
10257                settings.update_user_settings(cx, |settings| {
10258                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10259                })
10260            });
10261            item.is_dirty = true;
10262        });
10263
10264        // Deactivating the window saves the file.
10265        cx.deactivate_window();
10266        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10267
10268        // Re-activating the window doesn't save the file.
10269        cx.update(|window, _| window.activate_window());
10270        cx.executor().run_until_parked();
10271        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10272
10273        // Autosave on focus change.
10274        item.update_in(cx, |item, window, cx| {
10275            cx.focus_self(window);
10276            SettingsStore::update_global(cx, |settings, cx| {
10277                settings.update_user_settings(cx, |settings| {
10278                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10279                })
10280            });
10281            item.is_dirty = true;
10282        });
10283        // Blurring the item saves the file.
10284        item.update_in(cx, |_, window, _| window.blur());
10285        cx.executor().run_until_parked();
10286        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
10287
10288        // Deactivating the window still saves the file.
10289        item.update_in(cx, |item, window, cx| {
10290            cx.focus_self(window);
10291            item.is_dirty = true;
10292        });
10293        cx.deactivate_window();
10294        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
10295
10296        // Autosave after delay.
10297        item.update(cx, |item, cx| {
10298            SettingsStore::update_global(cx, |settings, cx| {
10299                settings.update_user_settings(cx, |settings| {
10300                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
10301                        milliseconds: 500.into(),
10302                    });
10303                })
10304            });
10305            item.is_dirty = true;
10306            cx.emit(ItemEvent::Edit);
10307        });
10308
10309        // Delay hasn't fully expired, so the file is still dirty and unsaved.
10310        cx.executor().advance_clock(Duration::from_millis(250));
10311        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
10312
10313        // After delay expires, the file is saved.
10314        cx.executor().advance_clock(Duration::from_millis(250));
10315        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10316
10317        // Autosave after delay, should save earlier than delay if tab is closed
10318        item.update(cx, |item, cx| {
10319            item.is_dirty = true;
10320            cx.emit(ItemEvent::Edit);
10321        });
10322        cx.executor().advance_clock(Duration::from_millis(250));
10323        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10324
10325        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
10326        pane.update_in(cx, |pane, window, cx| {
10327            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10328        })
10329        .await
10330        .unwrap();
10331        assert!(!cx.has_pending_prompt());
10332        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10333
10334        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10335        workspace.update_in(cx, |workspace, window, cx| {
10336            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10337        });
10338        item.update_in(cx, |item, _window, cx| {
10339            item.is_dirty = true;
10340            for project_item in &mut item.project_items {
10341                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10342            }
10343        });
10344        cx.run_until_parked();
10345        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10346
10347        // Autosave on focus change, ensuring closing the tab counts as such.
10348        item.update(cx, |item, cx| {
10349            SettingsStore::update_global(cx, |settings, cx| {
10350                settings.update_user_settings(cx, |settings| {
10351                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10352                })
10353            });
10354            item.is_dirty = true;
10355            for project_item in &mut item.project_items {
10356                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10357            }
10358        });
10359
10360        pane.update_in(cx, |pane, window, cx| {
10361            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10362        })
10363        .await
10364        .unwrap();
10365        assert!(!cx.has_pending_prompt());
10366        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10367
10368        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10369        workspace.update_in(cx, |workspace, window, cx| {
10370            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10371        });
10372        item.update_in(cx, |item, window, cx| {
10373            item.project_items[0].update(cx, |item, _| {
10374                item.entry_id = None;
10375            });
10376            item.is_dirty = true;
10377            window.blur();
10378        });
10379        cx.run_until_parked();
10380        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10381
10382        // Ensure autosave is prevented for deleted files also when closing the buffer.
10383        let _close_items = pane.update_in(cx, |pane, window, cx| {
10384            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10385        });
10386        cx.run_until_parked();
10387        assert!(cx.has_pending_prompt());
10388        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10389    }
10390
10391    #[gpui::test]
10392    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
10393        init_test(cx);
10394
10395        let fs = FakeFs::new(cx.executor());
10396
10397        let project = Project::test(fs, [], cx).await;
10398        let (workspace, cx) =
10399            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10400
10401        let item = cx.new(|cx| {
10402            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10403        });
10404        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10405        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
10406        let toolbar_notify_count = Rc::new(RefCell::new(0));
10407
10408        workspace.update_in(cx, |workspace, window, cx| {
10409            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10410            let toolbar_notification_count = toolbar_notify_count.clone();
10411            cx.observe_in(&toolbar, window, move |_, _, _, _| {
10412                *toolbar_notification_count.borrow_mut() += 1
10413            })
10414            .detach();
10415        });
10416
10417        pane.read_with(cx, |pane, _| {
10418            assert!(!pane.can_navigate_backward());
10419            assert!(!pane.can_navigate_forward());
10420        });
10421
10422        item.update_in(cx, |item, _, cx| {
10423            item.set_state("one".to_string(), cx);
10424        });
10425
10426        // Toolbar must be notified to re-render the navigation buttons
10427        assert_eq!(*toolbar_notify_count.borrow(), 1);
10428
10429        pane.read_with(cx, |pane, _| {
10430            assert!(pane.can_navigate_backward());
10431            assert!(!pane.can_navigate_forward());
10432        });
10433
10434        workspace
10435            .update_in(cx, |workspace, window, cx| {
10436                workspace.go_back(pane.downgrade(), window, cx)
10437            })
10438            .await
10439            .unwrap();
10440
10441        assert_eq!(*toolbar_notify_count.borrow(), 2);
10442        pane.read_with(cx, |pane, _| {
10443            assert!(!pane.can_navigate_backward());
10444            assert!(pane.can_navigate_forward());
10445        });
10446    }
10447
10448    #[gpui::test]
10449    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
10450        init_test(cx);
10451        let fs = FakeFs::new(cx.executor());
10452
10453        let project = Project::test(fs, [], cx).await;
10454        let (workspace, cx) =
10455            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10456
10457        let panel = workspace.update_in(cx, |workspace, window, cx| {
10458            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10459            workspace.add_panel(panel.clone(), window, cx);
10460
10461            workspace
10462                .right_dock()
10463                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10464
10465            panel
10466        });
10467
10468        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10469        pane.update_in(cx, |pane, window, cx| {
10470            let item = cx.new(TestItem::new);
10471            pane.add_item(Box::new(item), true, true, None, window, cx);
10472        });
10473
10474        // Transfer focus from center to panel
10475        workspace.update_in(cx, |workspace, window, cx| {
10476            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10477        });
10478
10479        workspace.update_in(cx, |workspace, window, cx| {
10480            assert!(workspace.right_dock().read(cx).is_open());
10481            assert!(!panel.is_zoomed(window, cx));
10482            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10483        });
10484
10485        // Transfer focus from panel to center
10486        workspace.update_in(cx, |workspace, window, cx| {
10487            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10488        });
10489
10490        workspace.update_in(cx, |workspace, window, cx| {
10491            assert!(workspace.right_dock().read(cx).is_open());
10492            assert!(!panel.is_zoomed(window, cx));
10493            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10494        });
10495
10496        // Close the dock
10497        workspace.update_in(cx, |workspace, window, cx| {
10498            workspace.toggle_dock(DockPosition::Right, window, cx);
10499        });
10500
10501        workspace.update_in(cx, |workspace, window, cx| {
10502            assert!(!workspace.right_dock().read(cx).is_open());
10503            assert!(!panel.is_zoomed(window, cx));
10504            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10505        });
10506
10507        // Open the dock
10508        workspace.update_in(cx, |workspace, window, cx| {
10509            workspace.toggle_dock(DockPosition::Right, window, cx);
10510        });
10511
10512        workspace.update_in(cx, |workspace, window, cx| {
10513            assert!(workspace.right_dock().read(cx).is_open());
10514            assert!(!panel.is_zoomed(window, cx));
10515            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10516        });
10517
10518        // Focus and zoom panel
10519        panel.update_in(cx, |panel, window, cx| {
10520            cx.focus_self(window);
10521            panel.set_zoomed(true, window, cx)
10522        });
10523
10524        workspace.update_in(cx, |workspace, window, cx| {
10525            assert!(workspace.right_dock().read(cx).is_open());
10526            assert!(panel.is_zoomed(window, cx));
10527            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10528        });
10529
10530        // Transfer focus to the center closes the dock
10531        workspace.update_in(cx, |workspace, window, cx| {
10532            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10533        });
10534
10535        workspace.update_in(cx, |workspace, window, cx| {
10536            assert!(!workspace.right_dock().read(cx).is_open());
10537            assert!(panel.is_zoomed(window, cx));
10538            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10539        });
10540
10541        // Transferring focus back to the panel keeps it zoomed
10542        workspace.update_in(cx, |workspace, window, cx| {
10543            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10544        });
10545
10546        workspace.update_in(cx, |workspace, window, cx| {
10547            assert!(workspace.right_dock().read(cx).is_open());
10548            assert!(panel.is_zoomed(window, cx));
10549            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10550        });
10551
10552        // Close the dock while it is zoomed
10553        workspace.update_in(cx, |workspace, window, cx| {
10554            workspace.toggle_dock(DockPosition::Right, window, cx)
10555        });
10556
10557        workspace.update_in(cx, |workspace, window, cx| {
10558            assert!(!workspace.right_dock().read(cx).is_open());
10559            assert!(panel.is_zoomed(window, cx));
10560            assert!(workspace.zoomed.is_none());
10561            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10562        });
10563
10564        // Opening the dock, when it's zoomed, retains focus
10565        workspace.update_in(cx, |workspace, window, cx| {
10566            workspace.toggle_dock(DockPosition::Right, window, cx)
10567        });
10568
10569        workspace.update_in(cx, |workspace, window, cx| {
10570            assert!(workspace.right_dock().read(cx).is_open());
10571            assert!(panel.is_zoomed(window, cx));
10572            assert!(workspace.zoomed.is_some());
10573            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10574        });
10575
10576        // Unzoom and close the panel, zoom the active pane.
10577        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
10578        workspace.update_in(cx, |workspace, window, cx| {
10579            workspace.toggle_dock(DockPosition::Right, window, cx)
10580        });
10581        pane.update_in(cx, |pane, window, cx| {
10582            pane.toggle_zoom(&Default::default(), window, cx)
10583        });
10584
10585        // Opening a dock unzooms the pane.
10586        workspace.update_in(cx, |workspace, window, cx| {
10587            workspace.toggle_dock(DockPosition::Right, window, cx)
10588        });
10589        workspace.update_in(cx, |workspace, window, cx| {
10590            let pane = pane.read(cx);
10591            assert!(!pane.is_zoomed());
10592            assert!(!pane.focus_handle(cx).is_focused(window));
10593            assert!(workspace.right_dock().read(cx).is_open());
10594            assert!(workspace.zoomed.is_none());
10595        });
10596    }
10597
10598    #[gpui::test]
10599    async fn test_close_panel_on_toggle(cx: &mut gpui::TestAppContext) {
10600        init_test(cx);
10601        let fs = FakeFs::new(cx.executor());
10602
10603        let project = Project::test(fs, [], cx).await;
10604        let (workspace, cx) =
10605            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10606
10607        let panel = workspace.update_in(cx, |workspace, window, cx| {
10608            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10609            workspace.add_panel(panel.clone(), window, cx);
10610            panel
10611        });
10612
10613        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10614        pane.update_in(cx, |pane, window, cx| {
10615            let item = cx.new(TestItem::new);
10616            pane.add_item(Box::new(item), true, true, None, window, cx);
10617        });
10618
10619        // Enable close_panel_on_toggle
10620        cx.update_global(|store: &mut SettingsStore, cx| {
10621            store.update_user_settings(cx, |settings| {
10622                settings.workspace.close_panel_on_toggle = Some(true);
10623            });
10624        });
10625
10626        // Panel starts closed. Toggling should open and focus it.
10627        workspace.update_in(cx, |workspace, window, cx| {
10628            assert!(!workspace.right_dock().read(cx).is_open());
10629            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10630        });
10631
10632        workspace.update_in(cx, |workspace, window, cx| {
10633            assert!(
10634                workspace.right_dock().read(cx).is_open(),
10635                "Dock should be open after toggling from center"
10636            );
10637            assert!(
10638                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
10639                "Panel should be focused after toggling from center"
10640            );
10641        });
10642
10643        // Panel is open and focused. Toggling should close the panel and
10644        // return focus to the center.
10645        workspace.update_in(cx, |workspace, window, cx| {
10646            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10647        });
10648
10649        workspace.update_in(cx, |workspace, window, cx| {
10650            assert!(
10651                !workspace.right_dock().read(cx).is_open(),
10652                "Dock should be closed after toggling from focused panel"
10653            );
10654            assert!(
10655                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
10656                "Panel should not be focused after toggling from focused panel"
10657            );
10658        });
10659
10660        // Open the dock and focus something else so the panel is open but not
10661        // focused. Toggling should focus the panel (not close it).
10662        workspace.update_in(cx, |workspace, window, cx| {
10663            workspace
10664                .right_dock()
10665                .update(cx, |dock, cx| dock.set_open(true, window, cx));
10666            window.focus(&pane.read(cx).focus_handle(cx), cx);
10667        });
10668
10669        workspace.update_in(cx, |workspace, window, cx| {
10670            assert!(workspace.right_dock().read(cx).is_open());
10671            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10672            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10673        });
10674
10675        workspace.update_in(cx, |workspace, window, cx| {
10676            assert!(
10677                workspace.right_dock().read(cx).is_open(),
10678                "Dock should remain open when toggling focuses an open-but-unfocused panel"
10679            );
10680            assert!(
10681                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
10682                "Panel should be focused after toggling an open-but-unfocused panel"
10683            );
10684        });
10685
10686        // Now disable the setting and verify the original behavior: toggling
10687        // from a focused panel moves focus to center but leaves the dock open.
10688        cx.update_global(|store: &mut SettingsStore, cx| {
10689            store.update_user_settings(cx, |settings| {
10690                settings.workspace.close_panel_on_toggle = Some(false);
10691            });
10692        });
10693
10694        workspace.update_in(cx, |workspace, window, cx| {
10695            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10696        });
10697
10698        workspace.update_in(cx, |workspace, window, cx| {
10699            assert!(
10700                workspace.right_dock().read(cx).is_open(),
10701                "Dock should remain open when setting is disabled"
10702            );
10703            assert!(
10704                !panel.read(cx).focus_handle(cx).contains_focused(window, cx),
10705                "Panel should not be focused after toggling with setting disabled"
10706            );
10707        });
10708    }
10709
10710    #[gpui::test]
10711    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
10712        init_test(cx);
10713        let fs = FakeFs::new(cx.executor());
10714
10715        let project = Project::test(fs, [], cx).await;
10716        let (workspace, cx) =
10717            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10718
10719        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
10720            workspace.active_pane().clone()
10721        });
10722
10723        // Add an item to the pane so it can be zoomed
10724        workspace.update_in(cx, |workspace, window, cx| {
10725            let item = cx.new(TestItem::new);
10726            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
10727        });
10728
10729        // Initially not zoomed
10730        workspace.update_in(cx, |workspace, _window, cx| {
10731            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
10732            assert!(
10733                workspace.zoomed.is_none(),
10734                "Workspace should track no zoomed pane"
10735            );
10736            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
10737        });
10738
10739        // Zoom In
10740        pane.update_in(cx, |pane, window, cx| {
10741            pane.zoom_in(&crate::ZoomIn, window, cx);
10742        });
10743
10744        workspace.update_in(cx, |workspace, window, cx| {
10745            assert!(
10746                pane.read(cx).is_zoomed(),
10747                "Pane should be zoomed after ZoomIn"
10748            );
10749            assert!(
10750                workspace.zoomed.is_some(),
10751                "Workspace should track the zoomed pane"
10752            );
10753            assert!(
10754                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10755                "ZoomIn should focus the pane"
10756            );
10757        });
10758
10759        // Zoom In again is a no-op
10760        pane.update_in(cx, |pane, window, cx| {
10761            pane.zoom_in(&crate::ZoomIn, window, cx);
10762        });
10763
10764        workspace.update_in(cx, |workspace, window, cx| {
10765            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
10766            assert!(
10767                workspace.zoomed.is_some(),
10768                "Workspace still tracks zoomed pane"
10769            );
10770            assert!(
10771                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10772                "Pane remains focused after repeated ZoomIn"
10773            );
10774        });
10775
10776        // Zoom Out
10777        pane.update_in(cx, |pane, window, cx| {
10778            pane.zoom_out(&crate::ZoomOut, window, cx);
10779        });
10780
10781        workspace.update_in(cx, |workspace, _window, cx| {
10782            assert!(
10783                !pane.read(cx).is_zoomed(),
10784                "Pane should unzoom after ZoomOut"
10785            );
10786            assert!(
10787                workspace.zoomed.is_none(),
10788                "Workspace clears zoom tracking after ZoomOut"
10789            );
10790        });
10791
10792        // Zoom Out again is a no-op
10793        pane.update_in(cx, |pane, window, cx| {
10794            pane.zoom_out(&crate::ZoomOut, window, cx);
10795        });
10796
10797        workspace.update_in(cx, |workspace, _window, cx| {
10798            assert!(
10799                !pane.read(cx).is_zoomed(),
10800                "Second ZoomOut keeps pane unzoomed"
10801            );
10802            assert!(
10803                workspace.zoomed.is_none(),
10804                "Workspace remains without zoomed pane"
10805            );
10806        });
10807    }
10808
10809    #[gpui::test]
10810    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10811        init_test(cx);
10812        let fs = FakeFs::new(cx.executor());
10813
10814        let project = Project::test(fs, [], cx).await;
10815        let (workspace, cx) =
10816            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10817        workspace.update_in(cx, |workspace, window, cx| {
10818            // Open two docks
10819            let left_dock = workspace.dock_at_position(DockPosition::Left);
10820            let right_dock = workspace.dock_at_position(DockPosition::Right);
10821
10822            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10823            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10824
10825            assert!(left_dock.read(cx).is_open());
10826            assert!(right_dock.read(cx).is_open());
10827        });
10828
10829        workspace.update_in(cx, |workspace, window, cx| {
10830            // Toggle all docks - should close both
10831            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10832
10833            let left_dock = workspace.dock_at_position(DockPosition::Left);
10834            let right_dock = workspace.dock_at_position(DockPosition::Right);
10835            assert!(!left_dock.read(cx).is_open());
10836            assert!(!right_dock.read(cx).is_open());
10837        });
10838
10839        workspace.update_in(cx, |workspace, window, cx| {
10840            // Toggle again - should reopen both
10841            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10842
10843            let left_dock = workspace.dock_at_position(DockPosition::Left);
10844            let right_dock = workspace.dock_at_position(DockPosition::Right);
10845            assert!(left_dock.read(cx).is_open());
10846            assert!(right_dock.read(cx).is_open());
10847        });
10848    }
10849
10850    #[gpui::test]
10851    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10852        init_test(cx);
10853        let fs = FakeFs::new(cx.executor());
10854
10855        let project = Project::test(fs, [], cx).await;
10856        let (workspace, cx) =
10857            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10858        workspace.update_in(cx, |workspace, window, cx| {
10859            // Open two docks
10860            let left_dock = workspace.dock_at_position(DockPosition::Left);
10861            let right_dock = workspace.dock_at_position(DockPosition::Right);
10862
10863            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10864            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10865
10866            assert!(left_dock.read(cx).is_open());
10867            assert!(right_dock.read(cx).is_open());
10868        });
10869
10870        workspace.update_in(cx, |workspace, window, cx| {
10871            // Close them manually
10872            workspace.toggle_dock(DockPosition::Left, window, cx);
10873            workspace.toggle_dock(DockPosition::Right, window, cx);
10874
10875            let left_dock = workspace.dock_at_position(DockPosition::Left);
10876            let right_dock = workspace.dock_at_position(DockPosition::Right);
10877            assert!(!left_dock.read(cx).is_open());
10878            assert!(!right_dock.read(cx).is_open());
10879        });
10880
10881        workspace.update_in(cx, |workspace, window, cx| {
10882            // Toggle all docks - only last closed (right dock) should reopen
10883            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10884
10885            let left_dock = workspace.dock_at_position(DockPosition::Left);
10886            let right_dock = workspace.dock_at_position(DockPosition::Right);
10887            assert!(!left_dock.read(cx).is_open());
10888            assert!(right_dock.read(cx).is_open());
10889        });
10890    }
10891
10892    #[gpui::test]
10893    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10894        init_test(cx);
10895        let fs = FakeFs::new(cx.executor());
10896        let project = Project::test(fs, [], cx).await;
10897        let (workspace, cx) =
10898            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10899
10900        // Open two docks (left and right) with one panel each
10901        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10902            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10903            workspace.add_panel(left_panel.clone(), window, cx);
10904
10905            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10906            workspace.add_panel(right_panel.clone(), window, cx);
10907
10908            workspace.toggle_dock(DockPosition::Left, window, cx);
10909            workspace.toggle_dock(DockPosition::Right, window, cx);
10910
10911            // Verify initial state
10912            assert!(
10913                workspace.left_dock().read(cx).is_open(),
10914                "Left dock should be open"
10915            );
10916            assert_eq!(
10917                workspace
10918                    .left_dock()
10919                    .read(cx)
10920                    .visible_panel()
10921                    .unwrap()
10922                    .panel_id(),
10923                left_panel.panel_id(),
10924                "Left panel should be visible in left dock"
10925            );
10926            assert!(
10927                workspace.right_dock().read(cx).is_open(),
10928                "Right dock should be open"
10929            );
10930            assert_eq!(
10931                workspace
10932                    .right_dock()
10933                    .read(cx)
10934                    .visible_panel()
10935                    .unwrap()
10936                    .panel_id(),
10937                right_panel.panel_id(),
10938                "Right panel should be visible in right dock"
10939            );
10940            assert!(
10941                !workspace.bottom_dock().read(cx).is_open(),
10942                "Bottom dock should be closed"
10943            );
10944
10945            (left_panel, right_panel)
10946        });
10947
10948        // Focus the left panel and move it to the next position (bottom dock)
10949        workspace.update_in(cx, |workspace, window, cx| {
10950            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10951            assert!(
10952                left_panel.read(cx).focus_handle(cx).is_focused(window),
10953                "Left panel should be focused"
10954            );
10955        });
10956
10957        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10958
10959        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10960        workspace.update(cx, |workspace, cx| {
10961            assert!(
10962                !workspace.left_dock().read(cx).is_open(),
10963                "Left dock should be closed"
10964            );
10965            assert!(
10966                workspace.bottom_dock().read(cx).is_open(),
10967                "Bottom dock should now be open"
10968            );
10969            assert_eq!(
10970                left_panel.read(cx).position,
10971                DockPosition::Bottom,
10972                "Left panel should now be in the bottom dock"
10973            );
10974            assert_eq!(
10975                workspace
10976                    .bottom_dock()
10977                    .read(cx)
10978                    .visible_panel()
10979                    .unwrap()
10980                    .panel_id(),
10981                left_panel.panel_id(),
10982                "Left panel should be the visible panel in the bottom dock"
10983            );
10984        });
10985
10986        // Toggle all docks off
10987        workspace.update_in(cx, |workspace, window, cx| {
10988            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10989            assert!(
10990                !workspace.left_dock().read(cx).is_open(),
10991                "Left dock should be closed"
10992            );
10993            assert!(
10994                !workspace.right_dock().read(cx).is_open(),
10995                "Right dock should be closed"
10996            );
10997            assert!(
10998                !workspace.bottom_dock().read(cx).is_open(),
10999                "Bottom dock should be closed"
11000            );
11001        });
11002
11003        // Toggle all docks back on and verify positions are restored
11004        workspace.update_in(cx, |workspace, window, cx| {
11005            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
11006            assert!(
11007                !workspace.left_dock().read(cx).is_open(),
11008                "Left dock should remain closed"
11009            );
11010            assert!(
11011                workspace.right_dock().read(cx).is_open(),
11012                "Right dock should remain open"
11013            );
11014            assert!(
11015                workspace.bottom_dock().read(cx).is_open(),
11016                "Bottom dock should remain open"
11017            );
11018            assert_eq!(
11019                left_panel.read(cx).position,
11020                DockPosition::Bottom,
11021                "Left panel should remain in the bottom dock"
11022            );
11023            assert_eq!(
11024                right_panel.read(cx).position,
11025                DockPosition::Right,
11026                "Right panel should remain in the right dock"
11027            );
11028            assert_eq!(
11029                workspace
11030                    .bottom_dock()
11031                    .read(cx)
11032                    .visible_panel()
11033                    .unwrap()
11034                    .panel_id(),
11035                left_panel.panel_id(),
11036                "Left panel should be the visible panel in the right dock"
11037            );
11038        });
11039    }
11040
11041    #[gpui::test]
11042    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
11043        init_test(cx);
11044
11045        let fs = FakeFs::new(cx.executor());
11046
11047        let project = Project::test(fs, None, cx).await;
11048        let (workspace, cx) =
11049            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11050
11051        // Let's arrange the panes like this:
11052        //
11053        // +-----------------------+
11054        // |         top           |
11055        // +------+--------+-------+
11056        // | left | center | right |
11057        // +------+--------+-------+
11058        // |        bottom         |
11059        // +-----------------------+
11060
11061        let top_item = cx.new(|cx| {
11062            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
11063        });
11064        let bottom_item = cx.new(|cx| {
11065            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
11066        });
11067        let left_item = cx.new(|cx| {
11068            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
11069        });
11070        let right_item = cx.new(|cx| {
11071            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
11072        });
11073        let center_item = cx.new(|cx| {
11074            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
11075        });
11076
11077        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11078            let top_pane_id = workspace.active_pane().entity_id();
11079            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
11080            workspace.split_pane(
11081                workspace.active_pane().clone(),
11082                SplitDirection::Down,
11083                window,
11084                cx,
11085            );
11086            top_pane_id
11087        });
11088        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11089            let bottom_pane_id = workspace.active_pane().entity_id();
11090            workspace.add_item_to_active_pane(
11091                Box::new(bottom_item.clone()),
11092                None,
11093                false,
11094                window,
11095                cx,
11096            );
11097            workspace.split_pane(
11098                workspace.active_pane().clone(),
11099                SplitDirection::Up,
11100                window,
11101                cx,
11102            );
11103            bottom_pane_id
11104        });
11105        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11106            let left_pane_id = workspace.active_pane().entity_id();
11107            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
11108            workspace.split_pane(
11109                workspace.active_pane().clone(),
11110                SplitDirection::Right,
11111                window,
11112                cx,
11113            );
11114            left_pane_id
11115        });
11116        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11117            let right_pane_id = workspace.active_pane().entity_id();
11118            workspace.add_item_to_active_pane(
11119                Box::new(right_item.clone()),
11120                None,
11121                false,
11122                window,
11123                cx,
11124            );
11125            workspace.split_pane(
11126                workspace.active_pane().clone(),
11127                SplitDirection::Left,
11128                window,
11129                cx,
11130            );
11131            right_pane_id
11132        });
11133        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
11134            let center_pane_id = workspace.active_pane().entity_id();
11135            workspace.add_item_to_active_pane(
11136                Box::new(center_item.clone()),
11137                None,
11138                false,
11139                window,
11140                cx,
11141            );
11142            center_pane_id
11143        });
11144        cx.executor().run_until_parked();
11145
11146        workspace.update_in(cx, |workspace, window, cx| {
11147            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
11148
11149            // Join into next from center pane into right
11150            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11151        });
11152
11153        workspace.update_in(cx, |workspace, window, cx| {
11154            let active_pane = workspace.active_pane();
11155            assert_eq!(right_pane_id, active_pane.entity_id());
11156            assert_eq!(2, active_pane.read(cx).items_len());
11157            let item_ids_in_pane =
11158                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11159            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11160            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11161
11162            // Join into next from right pane into bottom
11163            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11164        });
11165
11166        workspace.update_in(cx, |workspace, window, cx| {
11167            let active_pane = workspace.active_pane();
11168            assert_eq!(bottom_pane_id, active_pane.entity_id());
11169            assert_eq!(3, active_pane.read(cx).items_len());
11170            let item_ids_in_pane =
11171                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11172            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11173            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11174            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11175
11176            // Join into next from bottom pane into left
11177            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11178        });
11179
11180        workspace.update_in(cx, |workspace, window, cx| {
11181            let active_pane = workspace.active_pane();
11182            assert_eq!(left_pane_id, active_pane.entity_id());
11183            assert_eq!(4, active_pane.read(cx).items_len());
11184            let item_ids_in_pane =
11185                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11186            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11187            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11188            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11189            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11190
11191            // Join into next from left pane into top
11192            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
11193        });
11194
11195        workspace.update_in(cx, |workspace, window, cx| {
11196            let active_pane = workspace.active_pane();
11197            assert_eq!(top_pane_id, active_pane.entity_id());
11198            assert_eq!(5, active_pane.read(cx).items_len());
11199            let item_ids_in_pane =
11200                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
11201            assert!(item_ids_in_pane.contains(&center_item.item_id()));
11202            assert!(item_ids_in_pane.contains(&right_item.item_id()));
11203            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
11204            assert!(item_ids_in_pane.contains(&left_item.item_id()));
11205            assert!(item_ids_in_pane.contains(&top_item.item_id()));
11206
11207            // Single pane left: no-op
11208            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
11209        });
11210
11211        workspace.update(cx, |workspace, _cx| {
11212            let active_pane = workspace.active_pane();
11213            assert_eq!(top_pane_id, active_pane.entity_id());
11214        });
11215    }
11216
11217    fn add_an_item_to_active_pane(
11218        cx: &mut VisualTestContext,
11219        workspace: &Entity<Workspace>,
11220        item_id: u64,
11221    ) -> Entity<TestItem> {
11222        let item = cx.new(|cx| {
11223            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
11224                item_id,
11225                "item{item_id}.txt",
11226                cx,
11227            )])
11228        });
11229        workspace.update_in(cx, |workspace, window, cx| {
11230            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
11231        });
11232        item
11233    }
11234
11235    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
11236        workspace.update_in(cx, |workspace, window, cx| {
11237            workspace.split_pane(
11238                workspace.active_pane().clone(),
11239                SplitDirection::Right,
11240                window,
11241                cx,
11242            )
11243        })
11244    }
11245
11246    #[gpui::test]
11247    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
11248        init_test(cx);
11249        let fs = FakeFs::new(cx.executor());
11250        let project = Project::test(fs, None, cx).await;
11251        let (workspace, cx) =
11252            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11253
11254        add_an_item_to_active_pane(cx, &workspace, 1);
11255        split_pane(cx, &workspace);
11256        add_an_item_to_active_pane(cx, &workspace, 2);
11257        split_pane(cx, &workspace); // empty pane
11258        split_pane(cx, &workspace);
11259        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
11260
11261        cx.executor().run_until_parked();
11262
11263        workspace.update(cx, |workspace, cx| {
11264            let num_panes = workspace.panes().len();
11265            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11266            let active_item = workspace
11267                .active_pane()
11268                .read(cx)
11269                .active_item()
11270                .expect("item is in focus");
11271
11272            assert_eq!(num_panes, 4);
11273            assert_eq!(num_items_in_current_pane, 1);
11274            assert_eq!(active_item.item_id(), last_item.item_id());
11275        });
11276
11277        workspace.update_in(cx, |workspace, window, cx| {
11278            workspace.join_all_panes(window, cx);
11279        });
11280
11281        workspace.update(cx, |workspace, cx| {
11282            let num_panes = workspace.panes().len();
11283            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11284            let active_item = workspace
11285                .active_pane()
11286                .read(cx)
11287                .active_item()
11288                .expect("item is in focus");
11289
11290            assert_eq!(num_panes, 1);
11291            assert_eq!(num_items_in_current_pane, 3);
11292            assert_eq!(active_item.item_id(), last_item.item_id());
11293        });
11294    }
11295    struct TestModal(FocusHandle);
11296
11297    impl TestModal {
11298        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
11299            Self(cx.focus_handle())
11300        }
11301    }
11302
11303    impl EventEmitter<DismissEvent> for TestModal {}
11304
11305    impl Focusable for TestModal {
11306        fn focus_handle(&self, _cx: &App) -> FocusHandle {
11307            self.0.clone()
11308        }
11309    }
11310
11311    impl ModalView for TestModal {}
11312
11313    impl Render for TestModal {
11314        fn render(
11315            &mut self,
11316            _window: &mut Window,
11317            _cx: &mut Context<TestModal>,
11318        ) -> impl IntoElement {
11319            div().track_focus(&self.0)
11320        }
11321    }
11322
11323    #[gpui::test]
11324    async fn test_panels(cx: &mut gpui::TestAppContext) {
11325        init_test(cx);
11326        let fs = FakeFs::new(cx.executor());
11327
11328        let project = Project::test(fs, [], cx).await;
11329        let (workspace, cx) =
11330            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11331
11332        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
11333            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11334            workspace.add_panel(panel_1.clone(), window, cx);
11335            workspace.toggle_dock(DockPosition::Left, window, cx);
11336            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11337            workspace.add_panel(panel_2.clone(), window, cx);
11338            workspace.toggle_dock(DockPosition::Right, window, cx);
11339
11340            let left_dock = workspace.left_dock();
11341            assert_eq!(
11342                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11343                panel_1.panel_id()
11344            );
11345            assert_eq!(
11346                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11347                panel_1.size(window, cx)
11348            );
11349
11350            left_dock.update(cx, |left_dock, cx| {
11351                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
11352            });
11353            assert_eq!(
11354                workspace
11355                    .right_dock()
11356                    .read(cx)
11357                    .visible_panel()
11358                    .unwrap()
11359                    .panel_id(),
11360                panel_2.panel_id(),
11361            );
11362
11363            (panel_1, panel_2)
11364        });
11365
11366        // Move panel_1 to the right
11367        panel_1.update_in(cx, |panel_1, window, cx| {
11368            panel_1.set_position(DockPosition::Right, window, cx)
11369        });
11370
11371        workspace.update_in(cx, |workspace, window, cx| {
11372            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
11373            // Since it was the only panel on the left, the left dock should now be closed.
11374            assert!(!workspace.left_dock().read(cx).is_open());
11375            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
11376            let right_dock = workspace.right_dock();
11377            assert_eq!(
11378                right_dock.read(cx).visible_panel().unwrap().panel_id(),
11379                panel_1.panel_id()
11380            );
11381            assert_eq!(
11382                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
11383                px(1337.)
11384            );
11385
11386            // Now we move panel_2 to the left
11387            panel_2.set_position(DockPosition::Left, window, cx);
11388        });
11389
11390        workspace.update(cx, |workspace, cx| {
11391            // Since panel_2 was not visible on the right, we don't open the left dock.
11392            assert!(!workspace.left_dock().read(cx).is_open());
11393            // And the right dock is unaffected in its displaying of panel_1
11394            assert!(workspace.right_dock().read(cx).is_open());
11395            assert_eq!(
11396                workspace
11397                    .right_dock()
11398                    .read(cx)
11399                    .visible_panel()
11400                    .unwrap()
11401                    .panel_id(),
11402                panel_1.panel_id(),
11403            );
11404        });
11405
11406        // Move panel_1 back to the left
11407        panel_1.update_in(cx, |panel_1, window, cx| {
11408            panel_1.set_position(DockPosition::Left, window, cx)
11409        });
11410
11411        workspace.update_in(cx, |workspace, window, cx| {
11412            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
11413            let left_dock = workspace.left_dock();
11414            assert!(left_dock.read(cx).is_open());
11415            assert_eq!(
11416                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11417                panel_1.panel_id()
11418            );
11419            assert_eq!(
11420                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11421                px(1337.)
11422            );
11423            // And the right dock should be closed as it no longer has any panels.
11424            assert!(!workspace.right_dock().read(cx).is_open());
11425
11426            // Now we move panel_1 to the bottom
11427            panel_1.set_position(DockPosition::Bottom, window, cx);
11428        });
11429
11430        workspace.update_in(cx, |workspace, window, cx| {
11431            // Since panel_1 was visible on the left, we close the left dock.
11432            assert!(!workspace.left_dock().read(cx).is_open());
11433            // The bottom dock is sized based on the panel's default size,
11434            // since the panel orientation changed from vertical to horizontal.
11435            let bottom_dock = workspace.bottom_dock();
11436            assert_eq!(
11437                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
11438                panel_1.size(window, cx),
11439            );
11440            // Close bottom dock and move panel_1 back to the left.
11441            bottom_dock.update(cx, |bottom_dock, cx| {
11442                bottom_dock.set_open(false, window, cx)
11443            });
11444            panel_1.set_position(DockPosition::Left, window, cx);
11445        });
11446
11447        // Emit activated event on panel 1
11448        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
11449
11450        // Now the left dock is open and panel_1 is active and focused.
11451        workspace.update_in(cx, |workspace, window, cx| {
11452            let left_dock = workspace.left_dock();
11453            assert!(left_dock.read(cx).is_open());
11454            assert_eq!(
11455                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11456                panel_1.panel_id(),
11457            );
11458            assert!(panel_1.focus_handle(cx).is_focused(window));
11459        });
11460
11461        // Emit closed event on panel 2, which is not active
11462        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11463
11464        // Wo don't close the left dock, because panel_2 wasn't the active panel
11465        workspace.update(cx, |workspace, cx| {
11466            let left_dock = workspace.left_dock();
11467            assert!(left_dock.read(cx).is_open());
11468            assert_eq!(
11469                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11470                panel_1.panel_id(),
11471            );
11472        });
11473
11474        // Emitting a ZoomIn event shows the panel as zoomed.
11475        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
11476        workspace.read_with(cx, |workspace, _| {
11477            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11478            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
11479        });
11480
11481        // Move panel to another dock while it is zoomed
11482        panel_1.update_in(cx, |panel, window, cx| {
11483            panel.set_position(DockPosition::Right, window, cx)
11484        });
11485        workspace.read_with(cx, |workspace, _| {
11486            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11487
11488            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11489        });
11490
11491        // This is a helper for getting a:
11492        // - valid focus on an element,
11493        // - that isn't a part of the panes and panels system of the Workspace,
11494        // - and doesn't trigger the 'on_focus_lost' API.
11495        let focus_other_view = {
11496            let workspace = workspace.clone();
11497            move |cx: &mut VisualTestContext| {
11498                workspace.update_in(cx, |workspace, window, cx| {
11499                    if workspace.active_modal::<TestModal>(cx).is_some() {
11500                        workspace.toggle_modal(window, cx, TestModal::new);
11501                        workspace.toggle_modal(window, cx, TestModal::new);
11502                    } else {
11503                        workspace.toggle_modal(window, cx, TestModal::new);
11504                    }
11505                })
11506            }
11507        };
11508
11509        // If focus is transferred to another view that's not a panel or another pane, we still show
11510        // the panel as zoomed.
11511        focus_other_view(cx);
11512        workspace.read_with(cx, |workspace, _| {
11513            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11514            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11515        });
11516
11517        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
11518        workspace.update_in(cx, |_workspace, window, cx| {
11519            cx.focus_self(window);
11520        });
11521        workspace.read_with(cx, |workspace, _| {
11522            assert_eq!(workspace.zoomed, None);
11523            assert_eq!(workspace.zoomed_position, None);
11524        });
11525
11526        // If focus is transferred again to another view that's not a panel or a pane, we won't
11527        // show the panel as zoomed because it wasn't zoomed before.
11528        focus_other_view(cx);
11529        workspace.read_with(cx, |workspace, _| {
11530            assert_eq!(workspace.zoomed, None);
11531            assert_eq!(workspace.zoomed_position, None);
11532        });
11533
11534        // When the panel is activated, it is zoomed again.
11535        cx.dispatch_action(ToggleRightDock);
11536        workspace.read_with(cx, |workspace, _| {
11537            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11538            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11539        });
11540
11541        // Emitting a ZoomOut event unzooms the panel.
11542        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
11543        workspace.read_with(cx, |workspace, _| {
11544            assert_eq!(workspace.zoomed, None);
11545            assert_eq!(workspace.zoomed_position, None);
11546        });
11547
11548        // Emit closed event on panel 1, which is active
11549        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11550
11551        // Now the left dock is closed, because panel_1 was the active panel
11552        workspace.update(cx, |workspace, cx| {
11553            let right_dock = workspace.right_dock();
11554            assert!(!right_dock.read(cx).is_open());
11555        });
11556    }
11557
11558    #[gpui::test]
11559    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
11560        init_test(cx);
11561
11562        let fs = FakeFs::new(cx.background_executor.clone());
11563        let project = Project::test(fs, [], cx).await;
11564        let (workspace, cx) =
11565            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11566        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11567
11568        let dirty_regular_buffer = cx.new(|cx| {
11569            TestItem::new(cx)
11570                .with_dirty(true)
11571                .with_label("1.txt")
11572                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11573        });
11574        let dirty_regular_buffer_2 = cx.new(|cx| {
11575            TestItem::new(cx)
11576                .with_dirty(true)
11577                .with_label("2.txt")
11578                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11579        });
11580        let dirty_multi_buffer_with_both = cx.new(|cx| {
11581            TestItem::new(cx)
11582                .with_dirty(true)
11583                .with_buffer_kind(ItemBufferKind::Multibuffer)
11584                .with_label("Fake Project Search")
11585                .with_project_items(&[
11586                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11587                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11588                ])
11589        });
11590        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11591        workspace.update_in(cx, |workspace, window, cx| {
11592            workspace.add_item(
11593                pane.clone(),
11594                Box::new(dirty_regular_buffer.clone()),
11595                None,
11596                false,
11597                false,
11598                window,
11599                cx,
11600            );
11601            workspace.add_item(
11602                pane.clone(),
11603                Box::new(dirty_regular_buffer_2.clone()),
11604                None,
11605                false,
11606                false,
11607                window,
11608                cx,
11609            );
11610            workspace.add_item(
11611                pane.clone(),
11612                Box::new(dirty_multi_buffer_with_both.clone()),
11613                None,
11614                false,
11615                false,
11616                window,
11617                cx,
11618            );
11619        });
11620
11621        pane.update_in(cx, |pane, window, cx| {
11622            pane.activate_item(2, true, true, window, cx);
11623            assert_eq!(
11624                pane.active_item().unwrap().item_id(),
11625                multi_buffer_with_both_files_id,
11626                "Should select the multi buffer in the pane"
11627            );
11628        });
11629        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11630            pane.close_other_items(
11631                &CloseOtherItems {
11632                    save_intent: Some(SaveIntent::Save),
11633                    close_pinned: true,
11634                },
11635                None,
11636                window,
11637                cx,
11638            )
11639        });
11640        cx.background_executor.run_until_parked();
11641        assert!(!cx.has_pending_prompt());
11642        close_all_but_multi_buffer_task
11643            .await
11644            .expect("Closing all buffers but the multi buffer failed");
11645        pane.update(cx, |pane, cx| {
11646            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
11647            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
11648            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
11649            assert_eq!(pane.items_len(), 1);
11650            assert_eq!(
11651                pane.active_item().unwrap().item_id(),
11652                multi_buffer_with_both_files_id,
11653                "Should have only the multi buffer left in the pane"
11654            );
11655            assert!(
11656                dirty_multi_buffer_with_both.read(cx).is_dirty,
11657                "The multi buffer containing the unsaved buffer should still be dirty"
11658            );
11659        });
11660
11661        dirty_regular_buffer.update(cx, |buffer, cx| {
11662            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
11663        });
11664
11665        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11666            pane.close_active_item(
11667                &CloseActiveItem {
11668                    save_intent: Some(SaveIntent::Close),
11669                    close_pinned: false,
11670                },
11671                window,
11672                cx,
11673            )
11674        });
11675        cx.background_executor.run_until_parked();
11676        assert!(
11677            cx.has_pending_prompt(),
11678            "Dirty multi buffer should prompt a save dialog"
11679        );
11680        cx.simulate_prompt_answer("Save");
11681        cx.background_executor.run_until_parked();
11682        close_multi_buffer_task
11683            .await
11684            .expect("Closing the multi buffer failed");
11685        pane.update(cx, |pane, cx| {
11686            assert_eq!(
11687                dirty_multi_buffer_with_both.read(cx).save_count,
11688                1,
11689                "Multi buffer item should get be saved"
11690            );
11691            // Test impl does not save inner items, so we do not assert them
11692            assert_eq!(
11693                pane.items_len(),
11694                0,
11695                "No more items should be left in the pane"
11696            );
11697            assert!(pane.active_item().is_none());
11698        });
11699    }
11700
11701    #[gpui::test]
11702    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
11703        cx: &mut TestAppContext,
11704    ) {
11705        init_test(cx);
11706
11707        let fs = FakeFs::new(cx.background_executor.clone());
11708        let project = Project::test(fs, [], cx).await;
11709        let (workspace, cx) =
11710            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11711        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11712
11713        let dirty_regular_buffer = cx.new(|cx| {
11714            TestItem::new(cx)
11715                .with_dirty(true)
11716                .with_label("1.txt")
11717                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11718        });
11719        let dirty_regular_buffer_2 = cx.new(|cx| {
11720            TestItem::new(cx)
11721                .with_dirty(true)
11722                .with_label("2.txt")
11723                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11724        });
11725        let clear_regular_buffer = cx.new(|cx| {
11726            TestItem::new(cx)
11727                .with_label("3.txt")
11728                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11729        });
11730
11731        let dirty_multi_buffer_with_both = cx.new(|cx| {
11732            TestItem::new(cx)
11733                .with_dirty(true)
11734                .with_buffer_kind(ItemBufferKind::Multibuffer)
11735                .with_label("Fake Project Search")
11736                .with_project_items(&[
11737                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11738                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11739                    clear_regular_buffer.read(cx).project_items[0].clone(),
11740                ])
11741        });
11742        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11743        workspace.update_in(cx, |workspace, window, cx| {
11744            workspace.add_item(
11745                pane.clone(),
11746                Box::new(dirty_regular_buffer.clone()),
11747                None,
11748                false,
11749                false,
11750                window,
11751                cx,
11752            );
11753            workspace.add_item(
11754                pane.clone(),
11755                Box::new(dirty_multi_buffer_with_both.clone()),
11756                None,
11757                false,
11758                false,
11759                window,
11760                cx,
11761            );
11762        });
11763
11764        pane.update_in(cx, |pane, window, cx| {
11765            pane.activate_item(1, true, true, window, cx);
11766            assert_eq!(
11767                pane.active_item().unwrap().item_id(),
11768                multi_buffer_with_both_files_id,
11769                "Should select the multi buffer in the pane"
11770            );
11771        });
11772        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11773            pane.close_active_item(
11774                &CloseActiveItem {
11775                    save_intent: None,
11776                    close_pinned: false,
11777                },
11778                window,
11779                cx,
11780            )
11781        });
11782        cx.background_executor.run_until_parked();
11783        assert!(
11784            cx.has_pending_prompt(),
11785            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11786        );
11787    }
11788
11789    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11790    /// closed when they are deleted from disk.
11791    #[gpui::test]
11792    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11793        init_test(cx);
11794
11795        // Enable the close_on_disk_deletion setting
11796        cx.update_global(|store: &mut SettingsStore, cx| {
11797            store.update_user_settings(cx, |settings| {
11798                settings.workspace.close_on_file_delete = Some(true);
11799            });
11800        });
11801
11802        let fs = FakeFs::new(cx.background_executor.clone());
11803        let project = Project::test(fs, [], cx).await;
11804        let (workspace, cx) =
11805            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11806        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11807
11808        // Create a test item that simulates a file
11809        let item = cx.new(|cx| {
11810            TestItem::new(cx)
11811                .with_label("test.txt")
11812                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11813        });
11814
11815        // Add item to workspace
11816        workspace.update_in(cx, |workspace, window, cx| {
11817            workspace.add_item(
11818                pane.clone(),
11819                Box::new(item.clone()),
11820                None,
11821                false,
11822                false,
11823                window,
11824                cx,
11825            );
11826        });
11827
11828        // Verify the item is in the pane
11829        pane.read_with(cx, |pane, _| {
11830            assert_eq!(pane.items().count(), 1);
11831        });
11832
11833        // Simulate file deletion by setting the item's deleted state
11834        item.update(cx, |item, _| {
11835            item.set_has_deleted_file(true);
11836        });
11837
11838        // Emit UpdateTab event to trigger the close behavior
11839        cx.run_until_parked();
11840        item.update(cx, |_, cx| {
11841            cx.emit(ItemEvent::UpdateTab);
11842        });
11843
11844        // Allow the close operation to complete
11845        cx.run_until_parked();
11846
11847        // Verify the item was automatically closed
11848        pane.read_with(cx, |pane, _| {
11849            assert_eq!(
11850                pane.items().count(),
11851                0,
11852                "Item should be automatically closed when file is deleted"
11853            );
11854        });
11855    }
11856
11857    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11858    /// open with a strikethrough when they are deleted from disk.
11859    #[gpui::test]
11860    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11861        init_test(cx);
11862
11863        // Ensure close_on_disk_deletion is disabled (default)
11864        cx.update_global(|store: &mut SettingsStore, cx| {
11865            store.update_user_settings(cx, |settings| {
11866                settings.workspace.close_on_file_delete = Some(false);
11867            });
11868        });
11869
11870        let fs = FakeFs::new(cx.background_executor.clone());
11871        let project = Project::test(fs, [], cx).await;
11872        let (workspace, cx) =
11873            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11874        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11875
11876        // Create a test item that simulates a file
11877        let item = cx.new(|cx| {
11878            TestItem::new(cx)
11879                .with_label("test.txt")
11880                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11881        });
11882
11883        // Add item to workspace
11884        workspace.update_in(cx, |workspace, window, cx| {
11885            workspace.add_item(
11886                pane.clone(),
11887                Box::new(item.clone()),
11888                None,
11889                false,
11890                false,
11891                window,
11892                cx,
11893            );
11894        });
11895
11896        // Verify the item is in the pane
11897        pane.read_with(cx, |pane, _| {
11898            assert_eq!(pane.items().count(), 1);
11899        });
11900
11901        // Simulate file deletion
11902        item.update(cx, |item, _| {
11903            item.set_has_deleted_file(true);
11904        });
11905
11906        // Emit UpdateTab event
11907        cx.run_until_parked();
11908        item.update(cx, |_, cx| {
11909            cx.emit(ItemEvent::UpdateTab);
11910        });
11911
11912        // Allow any potential close operation to complete
11913        cx.run_until_parked();
11914
11915        // Verify the item remains open (with strikethrough)
11916        pane.read_with(cx, |pane, _| {
11917            assert_eq!(
11918                pane.items().count(),
11919                1,
11920                "Item should remain open when close_on_disk_deletion is disabled"
11921            );
11922        });
11923
11924        // Verify the item shows as deleted
11925        item.read_with(cx, |item, _| {
11926            assert!(
11927                item.has_deleted_file,
11928                "Item should be marked as having deleted file"
11929            );
11930        });
11931    }
11932
11933    /// Tests that dirty files are not automatically closed when deleted from disk,
11934    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11935    /// unsaved changes without being prompted.
11936    #[gpui::test]
11937    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11938        init_test(cx);
11939
11940        // Enable the close_on_file_delete setting
11941        cx.update_global(|store: &mut SettingsStore, cx| {
11942            store.update_user_settings(cx, |settings| {
11943                settings.workspace.close_on_file_delete = Some(true);
11944            });
11945        });
11946
11947        let fs = FakeFs::new(cx.background_executor.clone());
11948        let project = Project::test(fs, [], cx).await;
11949        let (workspace, cx) =
11950            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11951        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11952
11953        // Create a dirty test item
11954        let item = cx.new(|cx| {
11955            TestItem::new(cx)
11956                .with_dirty(true)
11957                .with_label("test.txt")
11958                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11959        });
11960
11961        // Add item to workspace
11962        workspace.update_in(cx, |workspace, window, cx| {
11963            workspace.add_item(
11964                pane.clone(),
11965                Box::new(item.clone()),
11966                None,
11967                false,
11968                false,
11969                window,
11970                cx,
11971            );
11972        });
11973
11974        // Simulate file deletion
11975        item.update(cx, |item, _| {
11976            item.set_has_deleted_file(true);
11977        });
11978
11979        // Emit UpdateTab event to trigger the close behavior
11980        cx.run_until_parked();
11981        item.update(cx, |_, cx| {
11982            cx.emit(ItemEvent::UpdateTab);
11983        });
11984
11985        // Allow any potential close operation to complete
11986        cx.run_until_parked();
11987
11988        // Verify the item remains open (dirty files are not auto-closed)
11989        pane.read_with(cx, |pane, _| {
11990            assert_eq!(
11991                pane.items().count(),
11992                1,
11993                "Dirty items should not be automatically closed even when file is deleted"
11994            );
11995        });
11996
11997        // Verify the item is marked as deleted and still dirty
11998        item.read_with(cx, |item, _| {
11999            assert!(
12000                item.has_deleted_file,
12001                "Item should be marked as having deleted file"
12002            );
12003            assert!(item.is_dirty, "Item should still be dirty");
12004        });
12005    }
12006
12007    /// Tests that navigation history is cleaned up when files are auto-closed
12008    /// due to deletion from disk.
12009    #[gpui::test]
12010    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
12011        init_test(cx);
12012
12013        // Enable the close_on_file_delete setting
12014        cx.update_global(|store: &mut SettingsStore, cx| {
12015            store.update_user_settings(cx, |settings| {
12016                settings.workspace.close_on_file_delete = Some(true);
12017            });
12018        });
12019
12020        let fs = FakeFs::new(cx.background_executor.clone());
12021        let project = Project::test(fs, [], cx).await;
12022        let (workspace, cx) =
12023            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12024        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12025
12026        // Create test items
12027        let item1 = cx.new(|cx| {
12028            TestItem::new(cx)
12029                .with_label("test1.txt")
12030                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
12031        });
12032        let item1_id = item1.item_id();
12033
12034        let item2 = cx.new(|cx| {
12035            TestItem::new(cx)
12036                .with_label("test2.txt")
12037                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
12038        });
12039
12040        // Add items to workspace
12041        workspace.update_in(cx, |workspace, window, cx| {
12042            workspace.add_item(
12043                pane.clone(),
12044                Box::new(item1.clone()),
12045                None,
12046                false,
12047                false,
12048                window,
12049                cx,
12050            );
12051            workspace.add_item(
12052                pane.clone(),
12053                Box::new(item2.clone()),
12054                None,
12055                false,
12056                false,
12057                window,
12058                cx,
12059            );
12060        });
12061
12062        // Activate item1 to ensure it gets navigation entries
12063        pane.update_in(cx, |pane, window, cx| {
12064            pane.activate_item(0, true, true, window, cx);
12065        });
12066
12067        // Switch to item2 and back to create navigation history
12068        pane.update_in(cx, |pane, window, cx| {
12069            pane.activate_item(1, true, true, window, cx);
12070        });
12071        cx.run_until_parked();
12072
12073        pane.update_in(cx, |pane, window, cx| {
12074            pane.activate_item(0, true, true, window, cx);
12075        });
12076        cx.run_until_parked();
12077
12078        // Simulate file deletion for item1
12079        item1.update(cx, |item, _| {
12080            item.set_has_deleted_file(true);
12081        });
12082
12083        // Emit UpdateTab event to trigger the close behavior
12084        item1.update(cx, |_, cx| {
12085            cx.emit(ItemEvent::UpdateTab);
12086        });
12087        cx.run_until_parked();
12088
12089        // Verify item1 was closed
12090        pane.read_with(cx, |pane, _| {
12091            assert_eq!(
12092                pane.items().count(),
12093                1,
12094                "Should have 1 item remaining after auto-close"
12095            );
12096        });
12097
12098        // Check navigation history after close
12099        let has_item = pane.read_with(cx, |pane, cx| {
12100            let mut has_item = false;
12101            pane.nav_history().for_each_entry(cx, &mut |entry, _| {
12102                if entry.item.id() == item1_id {
12103                    has_item = true;
12104                }
12105            });
12106            has_item
12107        });
12108
12109        assert!(
12110            !has_item,
12111            "Navigation history should not contain closed item entries"
12112        );
12113    }
12114
12115    #[gpui::test]
12116    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
12117        cx: &mut TestAppContext,
12118    ) {
12119        init_test(cx);
12120
12121        let fs = FakeFs::new(cx.background_executor.clone());
12122        let project = Project::test(fs, [], cx).await;
12123        let (workspace, cx) =
12124            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12125        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12126
12127        let dirty_regular_buffer = cx.new(|cx| {
12128            TestItem::new(cx)
12129                .with_dirty(true)
12130                .with_label("1.txt")
12131                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
12132        });
12133        let dirty_regular_buffer_2 = cx.new(|cx| {
12134            TestItem::new(cx)
12135                .with_dirty(true)
12136                .with_label("2.txt")
12137                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
12138        });
12139        let clear_regular_buffer = cx.new(|cx| {
12140            TestItem::new(cx)
12141                .with_label("3.txt")
12142                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
12143        });
12144
12145        let dirty_multi_buffer = cx.new(|cx| {
12146            TestItem::new(cx)
12147                .with_dirty(true)
12148                .with_buffer_kind(ItemBufferKind::Multibuffer)
12149                .with_label("Fake Project Search")
12150                .with_project_items(&[
12151                    dirty_regular_buffer.read(cx).project_items[0].clone(),
12152                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
12153                    clear_regular_buffer.read(cx).project_items[0].clone(),
12154                ])
12155        });
12156        workspace.update_in(cx, |workspace, window, cx| {
12157            workspace.add_item(
12158                pane.clone(),
12159                Box::new(dirty_regular_buffer.clone()),
12160                None,
12161                false,
12162                false,
12163                window,
12164                cx,
12165            );
12166            workspace.add_item(
12167                pane.clone(),
12168                Box::new(dirty_regular_buffer_2.clone()),
12169                None,
12170                false,
12171                false,
12172                window,
12173                cx,
12174            );
12175            workspace.add_item(
12176                pane.clone(),
12177                Box::new(dirty_multi_buffer.clone()),
12178                None,
12179                false,
12180                false,
12181                window,
12182                cx,
12183            );
12184        });
12185
12186        pane.update_in(cx, |pane, window, cx| {
12187            pane.activate_item(2, true, true, window, cx);
12188            assert_eq!(
12189                pane.active_item().unwrap().item_id(),
12190                dirty_multi_buffer.item_id(),
12191                "Should select the multi buffer in the pane"
12192            );
12193        });
12194        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
12195            pane.close_active_item(
12196                &CloseActiveItem {
12197                    save_intent: None,
12198                    close_pinned: false,
12199                },
12200                window,
12201                cx,
12202            )
12203        });
12204        cx.background_executor.run_until_parked();
12205        assert!(
12206            !cx.has_pending_prompt(),
12207            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
12208        );
12209        close_multi_buffer_task
12210            .await
12211            .expect("Closing multi buffer failed");
12212        pane.update(cx, |pane, cx| {
12213            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
12214            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
12215            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
12216            assert_eq!(
12217                pane.items()
12218                    .map(|item| item.item_id())
12219                    .sorted()
12220                    .collect::<Vec<_>>(),
12221                vec![
12222                    dirty_regular_buffer.item_id(),
12223                    dirty_regular_buffer_2.item_id(),
12224                ],
12225                "Should have no multi buffer left in the pane"
12226            );
12227            assert!(dirty_regular_buffer.read(cx).is_dirty);
12228            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
12229        });
12230    }
12231
12232    #[gpui::test]
12233    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
12234        init_test(cx);
12235        let fs = FakeFs::new(cx.executor());
12236        let project = Project::test(fs, [], cx).await;
12237        let (workspace, cx) =
12238            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12239
12240        // Add a new panel to the right dock, opening the dock and setting the
12241        // focus to the new panel.
12242        let panel = workspace.update_in(cx, |workspace, window, cx| {
12243            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12244            workspace.add_panel(panel.clone(), window, cx);
12245
12246            workspace
12247                .right_dock()
12248                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12249
12250            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12251
12252            panel
12253        });
12254
12255        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12256        // panel to the next valid position which, in this case, is the left
12257        // dock.
12258        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12259        workspace.update(cx, |workspace, cx| {
12260            assert!(workspace.left_dock().read(cx).is_open());
12261            assert_eq!(panel.read(cx).position, DockPosition::Left);
12262        });
12263
12264        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12265        // panel to the next valid position which, in this case, is the bottom
12266        // dock.
12267        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12268        workspace.update(cx, |workspace, cx| {
12269            assert!(workspace.bottom_dock().read(cx).is_open());
12270            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
12271        });
12272
12273        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
12274        // around moving the panel to its initial position, the right dock.
12275        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12276        workspace.update(cx, |workspace, cx| {
12277            assert!(workspace.right_dock().read(cx).is_open());
12278            assert_eq!(panel.read(cx).position, DockPosition::Right);
12279        });
12280
12281        // Remove focus from the panel, ensuring that, if the panel is not
12282        // focused, the `MoveFocusedPanelToNextPosition` action does not update
12283        // the panel's position, so the panel is still in the right dock.
12284        workspace.update_in(cx, |workspace, window, cx| {
12285            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12286        });
12287
12288        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12289        workspace.update(cx, |workspace, cx| {
12290            assert!(workspace.right_dock().read(cx).is_open());
12291            assert_eq!(panel.read(cx).position, DockPosition::Right);
12292        });
12293    }
12294
12295    #[gpui::test]
12296    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
12297        init_test(cx);
12298
12299        let fs = FakeFs::new(cx.executor());
12300        let project = Project::test(fs, [], cx).await;
12301        let (workspace, cx) =
12302            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12303
12304        let item_1 = cx.new(|cx| {
12305            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12306        });
12307        workspace.update_in(cx, |workspace, window, cx| {
12308            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12309            workspace.move_item_to_pane_in_direction(
12310                &MoveItemToPaneInDirection {
12311                    direction: SplitDirection::Right,
12312                    focus: true,
12313                    clone: false,
12314                },
12315                window,
12316                cx,
12317            );
12318            workspace.move_item_to_pane_at_index(
12319                &MoveItemToPane {
12320                    destination: 3,
12321                    focus: true,
12322                    clone: false,
12323                },
12324                window,
12325                cx,
12326            );
12327
12328            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
12329            assert_eq!(
12330                pane_items_paths(&workspace.active_pane, cx),
12331                vec!["first.txt".to_string()],
12332                "Single item was not moved anywhere"
12333            );
12334        });
12335
12336        let item_2 = cx.new(|cx| {
12337            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
12338        });
12339        workspace.update_in(cx, |workspace, window, cx| {
12340            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
12341            assert_eq!(
12342                pane_items_paths(&workspace.panes[0], cx),
12343                vec!["first.txt".to_string(), "second.txt".to_string()],
12344            );
12345            workspace.move_item_to_pane_in_direction(
12346                &MoveItemToPaneInDirection {
12347                    direction: SplitDirection::Right,
12348                    focus: true,
12349                    clone: false,
12350                },
12351                window,
12352                cx,
12353            );
12354
12355            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
12356            assert_eq!(
12357                pane_items_paths(&workspace.panes[0], cx),
12358                vec!["first.txt".to_string()],
12359                "After moving, one item should be left in the original pane"
12360            );
12361            assert_eq!(
12362                pane_items_paths(&workspace.panes[1], cx),
12363                vec!["second.txt".to_string()],
12364                "New item should have been moved to the new pane"
12365            );
12366        });
12367
12368        let item_3 = cx.new(|cx| {
12369            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
12370        });
12371        workspace.update_in(cx, |workspace, window, cx| {
12372            let original_pane = workspace.panes[0].clone();
12373            workspace.set_active_pane(&original_pane, window, cx);
12374            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
12375            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
12376            assert_eq!(
12377                pane_items_paths(&workspace.active_pane, cx),
12378                vec!["first.txt".to_string(), "third.txt".to_string()],
12379                "New pane should be ready to move one item out"
12380            );
12381
12382            workspace.move_item_to_pane_at_index(
12383                &MoveItemToPane {
12384                    destination: 3,
12385                    focus: true,
12386                    clone: false,
12387                },
12388                window,
12389                cx,
12390            );
12391            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
12392            assert_eq!(
12393                pane_items_paths(&workspace.active_pane, cx),
12394                vec!["first.txt".to_string()],
12395                "After moving, one item should be left in the original pane"
12396            );
12397            assert_eq!(
12398                pane_items_paths(&workspace.panes[1], cx),
12399                vec!["second.txt".to_string()],
12400                "Previously created pane should be unchanged"
12401            );
12402            assert_eq!(
12403                pane_items_paths(&workspace.panes[2], cx),
12404                vec!["third.txt".to_string()],
12405                "New item should have been moved to the new pane"
12406            );
12407        });
12408    }
12409
12410    #[gpui::test]
12411    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
12412        init_test(cx);
12413
12414        let fs = FakeFs::new(cx.executor());
12415        let project = Project::test(fs, [], cx).await;
12416        let (workspace, cx) =
12417            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12418
12419        let item_1 = cx.new(|cx| {
12420            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12421        });
12422        workspace.update_in(cx, |workspace, window, cx| {
12423            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12424            workspace.move_item_to_pane_in_direction(
12425                &MoveItemToPaneInDirection {
12426                    direction: SplitDirection::Right,
12427                    focus: true,
12428                    clone: true,
12429                },
12430                window,
12431                cx,
12432            );
12433        });
12434        cx.run_until_parked();
12435        workspace.update_in(cx, |workspace, window, cx| {
12436            workspace.move_item_to_pane_at_index(
12437                &MoveItemToPane {
12438                    destination: 3,
12439                    focus: true,
12440                    clone: true,
12441                },
12442                window,
12443                cx,
12444            );
12445        });
12446        cx.run_until_parked();
12447
12448        workspace.update(cx, |workspace, cx| {
12449            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
12450            for pane in workspace.panes() {
12451                assert_eq!(
12452                    pane_items_paths(pane, cx),
12453                    vec!["first.txt".to_string()],
12454                    "Single item exists in all panes"
12455                );
12456            }
12457        });
12458
12459        // verify that the active pane has been updated after waiting for the
12460        // pane focus event to fire and resolve
12461        workspace.read_with(cx, |workspace, _app| {
12462            assert_eq!(
12463                workspace.active_pane(),
12464                &workspace.panes[2],
12465                "The third pane should be the active one: {:?}",
12466                workspace.panes
12467            );
12468        })
12469    }
12470
12471    #[gpui::test]
12472    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
12473        init_test(cx);
12474
12475        let fs = FakeFs::new(cx.executor());
12476        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
12477
12478        let project = Project::test(fs, ["root".as_ref()], cx).await;
12479        let (workspace, cx) =
12480            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12481
12482        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12483        // Add item to pane A with project path
12484        let item_a = cx.new(|cx| {
12485            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12486        });
12487        workspace.update_in(cx, |workspace, window, cx| {
12488            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
12489        });
12490
12491        // Split to create pane B
12492        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
12493            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
12494        });
12495
12496        // Add item with SAME project path to pane B, and pin it
12497        let item_b = cx.new(|cx| {
12498            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12499        });
12500        pane_b.update_in(cx, |pane, window, cx| {
12501            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12502            pane.set_pinned_count(1);
12503        });
12504
12505        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
12506        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
12507
12508        // close_pinned: false should only close the unpinned copy
12509        workspace.update_in(cx, |workspace, window, cx| {
12510            workspace.close_item_in_all_panes(
12511                &CloseItemInAllPanes {
12512                    save_intent: Some(SaveIntent::Close),
12513                    close_pinned: false,
12514                },
12515                window,
12516                cx,
12517            )
12518        });
12519        cx.executor().run_until_parked();
12520
12521        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
12522        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
12523        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
12524        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
12525
12526        // Split again, seeing as closing the previous item also closed its
12527        // pane, so only pane remains, which does not allow us to properly test
12528        // that both items close when `close_pinned: true`.
12529        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
12530            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
12531        });
12532
12533        // Add an item with the same project path to pane C so that
12534        // close_item_in_all_panes can determine what to close across all panes
12535        // (it reads the active item from the active pane, and split_pane
12536        // creates an empty pane).
12537        let item_c = cx.new(|cx| {
12538            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12539        });
12540        pane_c.update_in(cx, |pane, window, cx| {
12541            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
12542        });
12543
12544        // close_pinned: true should close the pinned copy too
12545        workspace.update_in(cx, |workspace, window, cx| {
12546            let panes_count = workspace.panes().len();
12547            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
12548
12549            workspace.close_item_in_all_panes(
12550                &CloseItemInAllPanes {
12551                    save_intent: Some(SaveIntent::Close),
12552                    close_pinned: true,
12553                },
12554                window,
12555                cx,
12556            )
12557        });
12558        cx.executor().run_until_parked();
12559
12560        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
12561        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
12562        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
12563        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
12564    }
12565
12566    mod register_project_item_tests {
12567
12568        use super::*;
12569
12570        // View
12571        struct TestPngItemView {
12572            focus_handle: FocusHandle,
12573        }
12574        // Model
12575        struct TestPngItem {}
12576
12577        impl project::ProjectItem for TestPngItem {
12578            fn try_open(
12579                _project: &Entity<Project>,
12580                path: &ProjectPath,
12581                cx: &mut App,
12582            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12583                if path.path.extension().unwrap() == "png" {
12584                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
12585                } else {
12586                    None
12587                }
12588            }
12589
12590            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12591                None
12592            }
12593
12594            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12595                None
12596            }
12597
12598            fn is_dirty(&self) -> bool {
12599                false
12600            }
12601        }
12602
12603        impl Item for TestPngItemView {
12604            type Event = ();
12605            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12606                "".into()
12607            }
12608        }
12609        impl EventEmitter<()> for TestPngItemView {}
12610        impl Focusable for TestPngItemView {
12611            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12612                self.focus_handle.clone()
12613            }
12614        }
12615
12616        impl Render for TestPngItemView {
12617            fn render(
12618                &mut self,
12619                _window: &mut Window,
12620                _cx: &mut Context<Self>,
12621            ) -> impl IntoElement {
12622                Empty
12623            }
12624        }
12625
12626        impl ProjectItem for TestPngItemView {
12627            type Item = TestPngItem;
12628
12629            fn for_project_item(
12630                _project: Entity<Project>,
12631                _pane: Option<&Pane>,
12632                _item: Entity<Self::Item>,
12633                _: &mut Window,
12634                cx: &mut Context<Self>,
12635            ) -> Self
12636            where
12637                Self: Sized,
12638            {
12639                Self {
12640                    focus_handle: cx.focus_handle(),
12641                }
12642            }
12643        }
12644
12645        // View
12646        struct TestIpynbItemView {
12647            focus_handle: FocusHandle,
12648        }
12649        // Model
12650        struct TestIpynbItem {}
12651
12652        impl project::ProjectItem for TestIpynbItem {
12653            fn try_open(
12654                _project: &Entity<Project>,
12655                path: &ProjectPath,
12656                cx: &mut App,
12657            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12658                if path.path.extension().unwrap() == "ipynb" {
12659                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
12660                } else {
12661                    None
12662                }
12663            }
12664
12665            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12666                None
12667            }
12668
12669            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12670                None
12671            }
12672
12673            fn is_dirty(&self) -> bool {
12674                false
12675            }
12676        }
12677
12678        impl Item for TestIpynbItemView {
12679            type Event = ();
12680            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12681                "".into()
12682            }
12683        }
12684        impl EventEmitter<()> for TestIpynbItemView {}
12685        impl Focusable for TestIpynbItemView {
12686            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12687                self.focus_handle.clone()
12688            }
12689        }
12690
12691        impl Render for TestIpynbItemView {
12692            fn render(
12693                &mut self,
12694                _window: &mut Window,
12695                _cx: &mut Context<Self>,
12696            ) -> impl IntoElement {
12697                Empty
12698            }
12699        }
12700
12701        impl ProjectItem for TestIpynbItemView {
12702            type Item = TestIpynbItem;
12703
12704            fn for_project_item(
12705                _project: Entity<Project>,
12706                _pane: Option<&Pane>,
12707                _item: Entity<Self::Item>,
12708                _: &mut Window,
12709                cx: &mut Context<Self>,
12710            ) -> Self
12711            where
12712                Self: Sized,
12713            {
12714                Self {
12715                    focus_handle: cx.focus_handle(),
12716                }
12717            }
12718        }
12719
12720        struct TestAlternatePngItemView {
12721            focus_handle: FocusHandle,
12722        }
12723
12724        impl Item for TestAlternatePngItemView {
12725            type Event = ();
12726            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12727                "".into()
12728            }
12729        }
12730
12731        impl EventEmitter<()> for TestAlternatePngItemView {}
12732        impl Focusable for TestAlternatePngItemView {
12733            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12734                self.focus_handle.clone()
12735            }
12736        }
12737
12738        impl Render for TestAlternatePngItemView {
12739            fn render(
12740                &mut self,
12741                _window: &mut Window,
12742                _cx: &mut Context<Self>,
12743            ) -> impl IntoElement {
12744                Empty
12745            }
12746        }
12747
12748        impl ProjectItem for TestAlternatePngItemView {
12749            type Item = TestPngItem;
12750
12751            fn for_project_item(
12752                _project: Entity<Project>,
12753                _pane: Option<&Pane>,
12754                _item: Entity<Self::Item>,
12755                _: &mut Window,
12756                cx: &mut Context<Self>,
12757            ) -> Self
12758            where
12759                Self: Sized,
12760            {
12761                Self {
12762                    focus_handle: cx.focus_handle(),
12763                }
12764            }
12765        }
12766
12767        #[gpui::test]
12768        async fn test_register_project_item(cx: &mut TestAppContext) {
12769            init_test(cx);
12770
12771            cx.update(|cx| {
12772                register_project_item::<TestPngItemView>(cx);
12773                register_project_item::<TestIpynbItemView>(cx);
12774            });
12775
12776            let fs = FakeFs::new(cx.executor());
12777            fs.insert_tree(
12778                "/root1",
12779                json!({
12780                    "one.png": "BINARYDATAHERE",
12781                    "two.ipynb": "{ totally a notebook }",
12782                    "three.txt": "editing text, sure why not?"
12783                }),
12784            )
12785            .await;
12786
12787            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12788            let (workspace, cx) =
12789                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12790
12791            let worktree_id = project.update(cx, |project, cx| {
12792                project.worktrees(cx).next().unwrap().read(cx).id()
12793            });
12794
12795            let handle = workspace
12796                .update_in(cx, |workspace, window, cx| {
12797                    let project_path = (worktree_id, rel_path("one.png"));
12798                    workspace.open_path(project_path, None, true, window, cx)
12799                })
12800                .await
12801                .unwrap();
12802
12803            // Now we can check if the handle we got back errored or not
12804            assert_eq!(
12805                handle.to_any_view().entity_type(),
12806                TypeId::of::<TestPngItemView>()
12807            );
12808
12809            let handle = workspace
12810                .update_in(cx, |workspace, window, cx| {
12811                    let project_path = (worktree_id, rel_path("two.ipynb"));
12812                    workspace.open_path(project_path, None, true, window, cx)
12813                })
12814                .await
12815                .unwrap();
12816
12817            assert_eq!(
12818                handle.to_any_view().entity_type(),
12819                TypeId::of::<TestIpynbItemView>()
12820            );
12821
12822            let handle = workspace
12823                .update_in(cx, |workspace, window, cx| {
12824                    let project_path = (worktree_id, rel_path("three.txt"));
12825                    workspace.open_path(project_path, None, true, window, cx)
12826                })
12827                .await;
12828            assert!(handle.is_err());
12829        }
12830
12831        #[gpui::test]
12832        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
12833            init_test(cx);
12834
12835            cx.update(|cx| {
12836                register_project_item::<TestPngItemView>(cx);
12837                register_project_item::<TestAlternatePngItemView>(cx);
12838            });
12839
12840            let fs = FakeFs::new(cx.executor());
12841            fs.insert_tree(
12842                "/root1",
12843                json!({
12844                    "one.png": "BINARYDATAHERE",
12845                    "two.ipynb": "{ totally a notebook }",
12846                    "three.txt": "editing text, sure why not?"
12847                }),
12848            )
12849            .await;
12850            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12851            let (workspace, cx) =
12852                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12853            let worktree_id = project.update(cx, |project, cx| {
12854                project.worktrees(cx).next().unwrap().read(cx).id()
12855            });
12856
12857            let handle = workspace
12858                .update_in(cx, |workspace, window, cx| {
12859                    let project_path = (worktree_id, rel_path("one.png"));
12860                    workspace.open_path(project_path, None, true, window, cx)
12861                })
12862                .await
12863                .unwrap();
12864
12865            // This _must_ be the second item registered
12866            assert_eq!(
12867                handle.to_any_view().entity_type(),
12868                TypeId::of::<TestAlternatePngItemView>()
12869            );
12870
12871            let handle = workspace
12872                .update_in(cx, |workspace, window, cx| {
12873                    let project_path = (worktree_id, rel_path("three.txt"));
12874                    workspace.open_path(project_path, None, true, window, cx)
12875                })
12876                .await;
12877            assert!(handle.is_err());
12878        }
12879    }
12880
12881    #[gpui::test]
12882    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12883        init_test(cx);
12884
12885        let fs = FakeFs::new(cx.executor());
12886        let project = Project::test(fs, [], cx).await;
12887        let (workspace, _cx) =
12888            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12889
12890        // Test with status bar shown (default)
12891        workspace.read_with(cx, |workspace, cx| {
12892            let visible = workspace.status_bar_visible(cx);
12893            assert!(visible, "Status bar should be visible by default");
12894        });
12895
12896        // Test with status bar hidden
12897        cx.update_global(|store: &mut SettingsStore, cx| {
12898            store.update_user_settings(cx, |settings| {
12899                settings.status_bar.get_or_insert_default().show = Some(false);
12900            });
12901        });
12902
12903        workspace.read_with(cx, |workspace, cx| {
12904            let visible = workspace.status_bar_visible(cx);
12905            assert!(!visible, "Status bar should be hidden when show is false");
12906        });
12907
12908        // Test with status bar shown explicitly
12909        cx.update_global(|store: &mut SettingsStore, cx| {
12910            store.update_user_settings(cx, |settings| {
12911                settings.status_bar.get_or_insert_default().show = Some(true);
12912            });
12913        });
12914
12915        workspace.read_with(cx, |workspace, cx| {
12916            let visible = workspace.status_bar_visible(cx);
12917            assert!(visible, "Status bar should be visible when show is true");
12918        });
12919    }
12920
12921    #[gpui::test]
12922    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
12923        init_test(cx);
12924
12925        let fs = FakeFs::new(cx.executor());
12926        let project = Project::test(fs, [], cx).await;
12927        let (workspace, cx) =
12928            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12929        let panel = workspace.update_in(cx, |workspace, window, cx| {
12930            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12931            workspace.add_panel(panel.clone(), window, cx);
12932
12933            workspace
12934                .right_dock()
12935                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12936
12937            panel
12938        });
12939
12940        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12941        let item_a = cx.new(TestItem::new);
12942        let item_b = cx.new(TestItem::new);
12943        let item_a_id = item_a.entity_id();
12944        let item_b_id = item_b.entity_id();
12945
12946        pane.update_in(cx, |pane, window, cx| {
12947            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
12948            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12949        });
12950
12951        pane.read_with(cx, |pane, _| {
12952            assert_eq!(pane.items_len(), 2);
12953            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
12954        });
12955
12956        workspace.update_in(cx, |workspace, window, cx| {
12957            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12958        });
12959
12960        workspace.update_in(cx, |_, window, cx| {
12961            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12962        });
12963
12964        // Assert that the `pane::CloseActiveItem` action is handled at the
12965        // workspace level when one of the dock panels is focused and, in that
12966        // case, the center pane's active item is closed but the focus is not
12967        // moved.
12968        cx.dispatch_action(pane::CloseActiveItem::default());
12969        cx.run_until_parked();
12970
12971        pane.read_with(cx, |pane, _| {
12972            assert_eq!(pane.items_len(), 1);
12973            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
12974        });
12975
12976        workspace.update_in(cx, |workspace, window, cx| {
12977            assert!(workspace.right_dock().read(cx).is_open());
12978            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12979        });
12980    }
12981
12982    #[gpui::test]
12983    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
12984        init_test(cx);
12985        let fs = FakeFs::new(cx.executor());
12986
12987        let project_a = Project::test(fs.clone(), [], cx).await;
12988        let project_b = Project::test(fs, [], cx).await;
12989
12990        let multi_workspace_handle =
12991            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
12992
12993        let workspace_a = multi_workspace_handle
12994            .read_with(cx, |mw, _| mw.workspace().clone())
12995            .unwrap();
12996
12997        let _workspace_b = multi_workspace_handle
12998            .update(cx, |mw, window, cx| {
12999                mw.test_add_workspace(project_b, window, cx)
13000            })
13001            .unwrap();
13002
13003        // Switch to workspace A
13004        multi_workspace_handle
13005            .update(cx, |mw, window, cx| {
13006                mw.activate_index(0, window, cx);
13007            })
13008            .unwrap();
13009
13010        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
13011
13012        // Add a panel to workspace A's right dock and open the dock
13013        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
13014            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13015            workspace.add_panel(panel.clone(), window, cx);
13016            workspace
13017                .right_dock()
13018                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13019            panel
13020        });
13021
13022        // Focus the panel through the workspace (matching existing test pattern)
13023        workspace_a.update_in(cx, |workspace, window, cx| {
13024            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13025        });
13026
13027        // Zoom the panel
13028        panel.update_in(cx, |panel, window, cx| {
13029            panel.set_zoomed(true, window, cx);
13030        });
13031
13032        // Verify the panel is zoomed and the dock is open
13033        workspace_a.update_in(cx, |workspace, window, cx| {
13034            assert!(
13035                workspace.right_dock().read(cx).is_open(),
13036                "dock should be open before switch"
13037            );
13038            assert!(
13039                panel.is_zoomed(window, cx),
13040                "panel should be zoomed before switch"
13041            );
13042            assert!(
13043                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
13044                "panel should be focused before switch"
13045            );
13046        });
13047
13048        // Switch to workspace B
13049        multi_workspace_handle
13050            .update(cx, |mw, window, cx| {
13051                mw.activate_index(1, window, cx);
13052            })
13053            .unwrap();
13054        cx.run_until_parked();
13055
13056        // Switch back to workspace A
13057        multi_workspace_handle
13058            .update(cx, |mw, window, cx| {
13059                mw.activate_index(0, window, cx);
13060            })
13061            .unwrap();
13062        cx.run_until_parked();
13063
13064        // Verify the panel is still zoomed and the dock is still open
13065        workspace_a.update_in(cx, |workspace, window, cx| {
13066            assert!(
13067                workspace.right_dock().read(cx).is_open(),
13068                "dock should still be open after switching back"
13069            );
13070            assert!(
13071                panel.is_zoomed(window, cx),
13072                "panel should still be zoomed after switching back"
13073            );
13074        });
13075    }
13076
13077    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
13078        pane.read(cx)
13079            .items()
13080            .flat_map(|item| {
13081                item.project_paths(cx)
13082                    .into_iter()
13083                    .map(|path| path.path.display(PathStyle::local()).into_owned())
13084            })
13085            .collect()
13086    }
13087
13088    pub fn init_test(cx: &mut TestAppContext) {
13089        cx.update(|cx| {
13090            let settings_store = SettingsStore::test(cx);
13091            cx.set_global(settings_store);
13092            theme::init(theme::LoadThemes::JustBase, cx);
13093        });
13094    }
13095
13096    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
13097        let item = TestProjectItem::new(id, path, cx);
13098        item.update(cx, |item, _| {
13099            item.is_dirty = true;
13100        });
13101        item
13102    }
13103
13104    #[gpui::test]
13105    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
13106        cx: &mut gpui::TestAppContext,
13107    ) {
13108        init_test(cx);
13109        let fs = FakeFs::new(cx.executor());
13110
13111        let project = Project::test(fs, [], cx).await;
13112        let (workspace, cx) =
13113            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
13114
13115        let panel = workspace.update_in(cx, |workspace, window, cx| {
13116            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
13117            workspace.add_panel(panel.clone(), window, cx);
13118            workspace
13119                .right_dock()
13120                .update(cx, |dock, cx| dock.set_open(true, window, cx));
13121            panel
13122        });
13123
13124        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
13125        pane.update_in(cx, |pane, window, cx| {
13126            let item = cx.new(TestItem::new);
13127            pane.add_item(Box::new(item), true, true, None, window, cx);
13128        });
13129
13130        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
13131        // mirrors the real-world flow and avoids side effects from directly
13132        // focusing the panel while the center pane is active.
13133        workspace.update_in(cx, |workspace, window, cx| {
13134            workspace.toggle_panel_focus::<TestPanel>(window, cx);
13135        });
13136
13137        panel.update_in(cx, |panel, window, cx| {
13138            panel.set_zoomed(true, window, cx);
13139        });
13140
13141        workspace.update_in(cx, |workspace, window, cx| {
13142            assert!(workspace.right_dock().read(cx).is_open());
13143            assert!(panel.is_zoomed(window, cx));
13144            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
13145        });
13146
13147        // Simulate a spurious pane::Event::Focus on the center pane while the
13148        // panel still has focus. This mirrors what happens during macOS window
13149        // activation: the center pane fires a focus event even though actual
13150        // focus remains on the dock panel.
13151        pane.update_in(cx, |_, _, cx| {
13152            cx.emit(pane::Event::Focus);
13153        });
13154
13155        // The dock must remain open because the panel had focus at the time the
13156        // event was processed. Before the fix, dock_to_preserve was None for
13157        // panels that don't implement pane(), causing the dock to close.
13158        workspace.update_in(cx, |workspace, window, cx| {
13159            assert!(
13160                workspace.right_dock().read(cx).is_open(),
13161                "Dock should stay open when its zoomed panel (without pane()) still has focus"
13162            );
13163            assert!(panel.is_zoomed(window, cx));
13164        });
13165    }
13166}