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)]
 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    _schedule_serialize_ssh_paths: Option<Task<()>>,
 1248    pane_history_timestamp: Arc<AtomicUsize>,
 1249    bounds: Bounds<Pixels>,
 1250    pub centered_layout: bool,
 1251    bounds_save_task_queued: Option<Task<()>>,
 1252    on_prompt_for_new_path: Option<PromptForNewPath>,
 1253    on_prompt_for_open_path: Option<PromptForOpenPath>,
 1254    terminal_provider: Option<Box<dyn TerminalProvider>>,
 1255    debugger_provider: Option<Arc<dyn DebuggerProvider>>,
 1256    serializable_items_tx: UnboundedSender<Box<dyn SerializableItemHandle>>,
 1257    _items_serializer: Task<Result<()>>,
 1258    session_id: Option<String>,
 1259    scheduled_tasks: Vec<Task<()>>,
 1260    last_open_dock_positions: Vec<DockPosition>,
 1261    removing: bool,
 1262}
 1263
 1264impl EventEmitter<Event> for Workspace {}
 1265
 1266#[derive(Copy, Clone, Debug, PartialEq, Eq, Hash)]
 1267pub struct ViewId {
 1268    pub creator: CollaboratorId,
 1269    pub id: u64,
 1270}
 1271
 1272pub struct FollowerState {
 1273    center_pane: Entity<Pane>,
 1274    dock_pane: Option<Entity<Pane>>,
 1275    active_view_id: Option<ViewId>,
 1276    items_by_leader_view_id: HashMap<ViewId, FollowerView>,
 1277}
 1278
 1279struct FollowerView {
 1280    view: Box<dyn FollowableItemHandle>,
 1281    location: Option<proto::PanelId>,
 1282}
 1283
 1284impl Workspace {
 1285    pub fn new(
 1286        workspace_id: Option<WorkspaceId>,
 1287        project: Entity<Project>,
 1288        app_state: Arc<AppState>,
 1289        window: &mut Window,
 1290        cx: &mut Context<Self>,
 1291    ) -> Self {
 1292        if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1293            cx.subscribe(&trusted_worktrees, |_, worktrees_store, e, cx| {
 1294                if let TrustedWorktreesEvent::Trusted(..) = e {
 1295                    // Do not persist auto trusted worktrees
 1296                    if !ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1297                        worktrees_store.update(cx, |worktrees_store, cx| {
 1298                            worktrees_store.schedule_serialization(
 1299                                cx,
 1300                                |new_trusted_worktrees, cx| {
 1301                                    let timeout =
 1302                                        cx.background_executor().timer(SERIALIZATION_THROTTLE_TIME);
 1303                                    cx.background_spawn(async move {
 1304                                        timeout.await;
 1305                                        persistence::DB
 1306                                            .save_trusted_worktrees(new_trusted_worktrees)
 1307                                            .await
 1308                                            .log_err();
 1309                                    })
 1310                                },
 1311                            )
 1312                        });
 1313                    }
 1314                }
 1315            })
 1316            .detach();
 1317
 1318            cx.observe_global::<SettingsStore>(|_, cx| {
 1319                if ProjectSettings::get_global(cx).session.trust_all_worktrees {
 1320                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 1321                        trusted_worktrees.update(cx, |trusted_worktrees, cx| {
 1322                            trusted_worktrees.auto_trust_all(cx);
 1323                        })
 1324                    }
 1325                }
 1326            })
 1327            .detach();
 1328        }
 1329
 1330        cx.subscribe_in(&project, window, move |this, _, event, window, cx| {
 1331            match event {
 1332                project::Event::RemoteIdChanged(_) => {
 1333                    this.update_window_title(window, cx);
 1334                }
 1335
 1336                project::Event::CollaboratorLeft(peer_id) => {
 1337                    this.collaborator_left(*peer_id, window, cx);
 1338                }
 1339
 1340                &project::Event::WorktreeRemoved(id) | &project::Event::WorktreeAdded(id) => {
 1341                    this.update_window_title(window, cx);
 1342                    if this
 1343                        .project()
 1344                        .read(cx)
 1345                        .worktree_for_id(id, cx)
 1346                        .is_some_and(|wt| wt.read(cx).is_visible())
 1347                    {
 1348                        this.serialize_workspace(window, cx);
 1349                        this.update_history(cx);
 1350                    }
 1351                }
 1352                project::Event::WorktreeUpdatedEntries(..) => {
 1353                    this.update_window_title(window, cx);
 1354                    this.serialize_workspace(window, cx);
 1355                }
 1356
 1357                project::Event::DisconnectedFromHost => {
 1358                    this.update_window_edited(window, cx);
 1359                    let leaders_to_unfollow =
 1360                        this.follower_states.keys().copied().collect::<Vec<_>>();
 1361                    for leader_id in leaders_to_unfollow {
 1362                        this.unfollow(leader_id, window, cx);
 1363                    }
 1364                }
 1365
 1366                project::Event::DisconnectedFromRemote {
 1367                    server_not_running: _,
 1368                } => {
 1369                    this.update_window_edited(window, cx);
 1370                }
 1371
 1372                project::Event::Closed => {
 1373                    window.remove_window();
 1374                }
 1375
 1376                project::Event::DeletedEntry(_, entry_id) => {
 1377                    for pane in this.panes.iter() {
 1378                        pane.update(cx, |pane, cx| {
 1379                            pane.handle_deleted_project_item(*entry_id, window, cx)
 1380                        });
 1381                    }
 1382                }
 1383
 1384                project::Event::Toast {
 1385                    notification_id,
 1386                    message,
 1387                    link,
 1388                } => this.show_notification(
 1389                    NotificationId::named(notification_id.clone()),
 1390                    cx,
 1391                    |cx| {
 1392                        let mut notification = MessageNotification::new(message.clone(), cx);
 1393                        if let Some(link) = link {
 1394                            notification = notification
 1395                                .more_info_message(link.label)
 1396                                .more_info_url(link.url);
 1397                        }
 1398
 1399                        cx.new(|_| notification)
 1400                    },
 1401                ),
 1402
 1403                project::Event::HideToast { notification_id } => {
 1404                    this.dismiss_notification(&NotificationId::named(notification_id.clone()), cx)
 1405                }
 1406
 1407                project::Event::LanguageServerPrompt(request) => {
 1408                    struct LanguageServerPrompt;
 1409
 1410                    this.show_notification(
 1411                        NotificationId::composite::<LanguageServerPrompt>(request.id),
 1412                        cx,
 1413                        |cx| {
 1414                            cx.new(|cx| {
 1415                                notifications::LanguageServerPrompt::new(request.clone(), cx)
 1416                            })
 1417                        },
 1418                    );
 1419                }
 1420
 1421                project::Event::AgentLocationChanged => {
 1422                    this.handle_agent_location_changed(window, cx)
 1423                }
 1424
 1425                _ => {}
 1426            }
 1427            cx.notify()
 1428        })
 1429        .detach();
 1430
 1431        cx.subscribe_in(
 1432            &project.read(cx).breakpoint_store(),
 1433            window,
 1434            |workspace, _, event, window, cx| match event {
 1435                BreakpointStoreEvent::BreakpointsUpdated(_, _)
 1436                | BreakpointStoreEvent::BreakpointsCleared(_) => {
 1437                    workspace.serialize_workspace(window, cx);
 1438                }
 1439                BreakpointStoreEvent::SetDebugLine | BreakpointStoreEvent::ClearDebugLines => {}
 1440            },
 1441        )
 1442        .detach();
 1443        if let Some(toolchain_store) = project.read(cx).toolchain_store() {
 1444            cx.subscribe_in(
 1445                &toolchain_store,
 1446                window,
 1447                |workspace, _, event, window, cx| match event {
 1448                    ToolchainStoreEvent::CustomToolchainsModified => {
 1449                        workspace.serialize_workspace(window, cx);
 1450                    }
 1451                    _ => {}
 1452                },
 1453            )
 1454            .detach();
 1455        }
 1456
 1457        cx.on_focus_lost(window, |this, window, cx| {
 1458            let focus_handle = this.focus_handle(cx);
 1459            window.focus(&focus_handle, cx);
 1460        })
 1461        .detach();
 1462
 1463        let weak_handle = cx.entity().downgrade();
 1464        let pane_history_timestamp = Arc::new(AtomicUsize::new(0));
 1465
 1466        let center_pane = cx.new(|cx| {
 1467            let mut center_pane = Pane::new(
 1468                weak_handle.clone(),
 1469                project.clone(),
 1470                pane_history_timestamp.clone(),
 1471                None,
 1472                NewFile.boxed_clone(),
 1473                true,
 1474                window,
 1475                cx,
 1476            );
 1477            center_pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 1478            center_pane.set_should_display_welcome_page(true);
 1479            center_pane
 1480        });
 1481        cx.subscribe_in(&center_pane, window, Self::handle_pane_event)
 1482            .detach();
 1483
 1484        window.focus(&center_pane.focus_handle(cx), cx);
 1485
 1486        cx.emit(Event::PaneAdded(center_pane.clone()));
 1487
 1488        let any_window_handle = window.window_handle();
 1489        app_state.workspace_store.update(cx, |store, _| {
 1490            store
 1491                .workspaces
 1492                .insert((any_window_handle, weak_handle.clone()));
 1493        });
 1494
 1495        let mut current_user = app_state.user_store.read(cx).watch_current_user();
 1496        let mut connection_status = app_state.client.status();
 1497        let _observe_current_user = cx.spawn_in(window, async move |this, cx| {
 1498            current_user.next().await;
 1499            connection_status.next().await;
 1500            let mut stream =
 1501                Stream::map(current_user, drop).merge(Stream::map(connection_status, drop));
 1502
 1503            while stream.recv().await.is_some() {
 1504                this.update(cx, |_, cx| cx.notify())?;
 1505            }
 1506            anyhow::Ok(())
 1507        });
 1508
 1509        // All leader updates are enqueued and then processed in a single task, so
 1510        // that each asynchronous operation can be run in order.
 1511        let (leader_updates_tx, mut leader_updates_rx) =
 1512            mpsc::unbounded::<(PeerId, proto::UpdateFollowers)>();
 1513        let _apply_leader_updates = cx.spawn_in(window, async move |this, cx| {
 1514            while let Some((leader_id, update)) = leader_updates_rx.next().await {
 1515                Self::process_leader_update(&this, leader_id, update, cx)
 1516                    .await
 1517                    .log_err();
 1518            }
 1519
 1520            Ok(())
 1521        });
 1522
 1523        cx.emit(Event::WorkspaceCreated(weak_handle.clone()));
 1524        let modal_layer = cx.new(|_| ModalLayer::new());
 1525        let toast_layer = cx.new(|_| ToastLayer::new());
 1526        cx.subscribe(
 1527            &modal_layer,
 1528            |_, _, _: &modal_layer::ModalOpenedEvent, cx| {
 1529                cx.emit(Event::ModalOpened);
 1530            },
 1531        )
 1532        .detach();
 1533
 1534        let left_dock = Dock::new(DockPosition::Left, modal_layer.clone(), window, cx);
 1535        let bottom_dock = Dock::new(DockPosition::Bottom, modal_layer.clone(), window, cx);
 1536        let right_dock = Dock::new(DockPosition::Right, modal_layer.clone(), window, cx);
 1537        let left_dock_buttons = cx.new(|cx| PanelButtons::new(left_dock.clone(), cx));
 1538        let bottom_dock_buttons = cx.new(|cx| PanelButtons::new(bottom_dock.clone(), cx));
 1539        let right_dock_buttons = cx.new(|cx| PanelButtons::new(right_dock.clone(), cx));
 1540        let status_bar = cx.new(|cx| {
 1541            let mut status_bar = StatusBar::new(&center_pane.clone(), window, cx);
 1542            status_bar.add_left_item(left_dock_buttons, window, cx);
 1543            status_bar.add_right_item(right_dock_buttons, window, cx);
 1544            status_bar.add_right_item(bottom_dock_buttons, window, cx);
 1545            status_bar
 1546        });
 1547
 1548        let session_id = app_state.session.read(cx).id().to_owned();
 1549
 1550        let mut active_call = None;
 1551        if let Some(call) = ActiveCall::try_global(cx) {
 1552            let subscriptions = vec![cx.subscribe_in(&call, window, Self::on_active_call_event)];
 1553            active_call = Some((call, subscriptions));
 1554        }
 1555
 1556        let (serializable_items_tx, serializable_items_rx) =
 1557            mpsc::unbounded::<Box<dyn SerializableItemHandle>>();
 1558        let _items_serializer = cx.spawn_in(window, async move |this, cx| {
 1559            Self::serialize_items(&this, serializable_items_rx, cx).await
 1560        });
 1561
 1562        let subscriptions = vec![
 1563            cx.observe_window_activation(window, Self::on_window_activation_changed),
 1564            cx.observe_window_bounds(window, move |this, window, cx| {
 1565                if this.bounds_save_task_queued.is_some() {
 1566                    return;
 1567                }
 1568                this.bounds_save_task_queued = Some(cx.spawn_in(window, async move |this, cx| {
 1569                    cx.background_executor()
 1570                        .timer(Duration::from_millis(100))
 1571                        .await;
 1572                    this.update_in(cx, |this, window, cx| {
 1573                        if let Some(display) = window.display(cx)
 1574                            && let Ok(display_uuid) = display.uuid()
 1575                        {
 1576                            let window_bounds = window.inner_window_bounds();
 1577                            let has_paths = !this.root_paths(cx).is_empty();
 1578                            if !has_paths {
 1579                                cx.background_executor()
 1580                                    .spawn(persistence::write_default_window_bounds(
 1581                                        window_bounds,
 1582                                        display_uuid,
 1583                                    ))
 1584                                    .detach_and_log_err(cx);
 1585                            }
 1586                            if let Some(database_id) = workspace_id {
 1587                                cx.background_executor()
 1588                                    .spawn(DB.set_window_open_status(
 1589                                        database_id,
 1590                                        SerializedWindowBounds(window_bounds),
 1591                                        display_uuid,
 1592                                    ))
 1593                                    .detach_and_log_err(cx);
 1594                            } else {
 1595                                cx.background_executor()
 1596                                    .spawn(persistence::write_default_window_bounds(
 1597                                        window_bounds,
 1598                                        display_uuid,
 1599                                    ))
 1600                                    .detach_and_log_err(cx);
 1601                            }
 1602                        }
 1603                        this.bounds_save_task_queued.take();
 1604                    })
 1605                    .ok();
 1606                }));
 1607                cx.notify();
 1608            }),
 1609            cx.observe_window_appearance(window, |_, window, cx| {
 1610                let window_appearance = window.appearance();
 1611
 1612                *SystemAppearance::global_mut(cx) = SystemAppearance(window_appearance.into());
 1613
 1614                GlobalTheme::reload_theme(cx);
 1615                GlobalTheme::reload_icon_theme(cx);
 1616            }),
 1617            cx.on_release({
 1618                let weak_handle = weak_handle.clone();
 1619                move |this, cx| {
 1620                    this.app_state.workspace_store.update(cx, move |store, _| {
 1621                        store.workspaces.retain(|(_, weak)| weak != &weak_handle);
 1622                    })
 1623                }
 1624            }),
 1625        ];
 1626
 1627        cx.defer_in(window, move |this, window, cx| {
 1628            this.update_window_title(window, cx);
 1629            this.show_initial_notifications(cx);
 1630        });
 1631
 1632        let mut center = PaneGroup::new(center_pane.clone());
 1633        center.set_is_center(true);
 1634        center.mark_positions(cx);
 1635
 1636        Workspace {
 1637            weak_self: weak_handle.clone(),
 1638            zoomed: None,
 1639            zoomed_position: None,
 1640            previous_dock_drag_coordinates: None,
 1641            center,
 1642            panes: vec![center_pane.clone()],
 1643            panes_by_item: Default::default(),
 1644            active_pane: center_pane.clone(),
 1645            last_active_center_pane: Some(center_pane.downgrade()),
 1646            last_active_view_id: None,
 1647            status_bar,
 1648            modal_layer,
 1649            toast_layer,
 1650            titlebar_item: None,
 1651            active_worktree_override: None,
 1652            notifications: Notifications::default(),
 1653            suppressed_notifications: HashSet::default(),
 1654            left_dock,
 1655            bottom_dock,
 1656            right_dock,
 1657            project: project.clone(),
 1658            follower_states: Default::default(),
 1659            last_leaders_by_pane: Default::default(),
 1660            dispatching_keystrokes: Default::default(),
 1661            window_edited: false,
 1662            last_window_title: None,
 1663            dirty_items: Default::default(),
 1664            active_call,
 1665            database_id: workspace_id,
 1666            app_state,
 1667            _observe_current_user,
 1668            _apply_leader_updates,
 1669            _schedule_serialize_workspace: None,
 1670            _schedule_serialize_ssh_paths: None,
 1671            leader_updates_tx,
 1672            _subscriptions: subscriptions,
 1673            pane_history_timestamp,
 1674            workspace_actions: Default::default(),
 1675            // This data will be incorrect, but it will be overwritten by the time it needs to be used.
 1676            bounds: Default::default(),
 1677            centered_layout: false,
 1678            bounds_save_task_queued: None,
 1679            on_prompt_for_new_path: None,
 1680            on_prompt_for_open_path: None,
 1681            terminal_provider: None,
 1682            debugger_provider: None,
 1683            serializable_items_tx,
 1684            _items_serializer,
 1685            session_id: Some(session_id),
 1686
 1687            scheduled_tasks: Vec::new(),
 1688            last_open_dock_positions: Vec::new(),
 1689            removing: false,
 1690        }
 1691    }
 1692
 1693    pub fn new_local(
 1694        abs_paths: Vec<PathBuf>,
 1695        app_state: Arc<AppState>,
 1696        requesting_window: Option<WindowHandle<MultiWorkspace>>,
 1697        env: Option<HashMap<String, String>>,
 1698        init: Option<Box<dyn FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send>>,
 1699        cx: &mut App,
 1700    ) -> Task<
 1701        anyhow::Result<(
 1702            WindowHandle<MultiWorkspace>,
 1703            Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 1704        )>,
 1705    > {
 1706        let project_handle = Project::local(
 1707            app_state.client.clone(),
 1708            app_state.node_runtime.clone(),
 1709            app_state.user_store.clone(),
 1710            app_state.languages.clone(),
 1711            app_state.fs.clone(),
 1712            env,
 1713            Default::default(),
 1714            cx,
 1715        );
 1716
 1717        cx.spawn(async move |cx| {
 1718            let mut paths_to_open = Vec::with_capacity(abs_paths.len());
 1719            for path in abs_paths.into_iter() {
 1720                if let Some(canonical) = app_state.fs.canonicalize(&path).await.ok() {
 1721                    paths_to_open.push(canonical)
 1722                } else {
 1723                    paths_to_open.push(path)
 1724                }
 1725            }
 1726
 1727            let serialized_workspace =
 1728                persistence::DB.workspace_for_roots(paths_to_open.as_slice());
 1729
 1730            if let Some(paths) = serialized_workspace.as_ref().map(|ws| &ws.paths) {
 1731                paths_to_open = paths.ordered_paths().cloned().collect();
 1732                if !paths.is_lexicographically_ordered() {
 1733                    project_handle.update(cx, |project, cx| {
 1734                        project.set_worktrees_reordered(true, cx);
 1735                    });
 1736                }
 1737            }
 1738
 1739            // Get project paths for all of the abs_paths
 1740            let mut project_paths: Vec<(PathBuf, Option<ProjectPath>)> =
 1741                Vec::with_capacity(paths_to_open.len());
 1742
 1743            for path in paths_to_open.into_iter() {
 1744                if let Some((_, project_entry)) = cx
 1745                    .update(|cx| {
 1746                        Workspace::project_path_for_path(project_handle.clone(), &path, true, cx)
 1747                    })
 1748                    .await
 1749                    .log_err()
 1750                {
 1751                    project_paths.push((path, Some(project_entry)));
 1752                } else {
 1753                    project_paths.push((path, None));
 1754                }
 1755            }
 1756
 1757            let workspace_id = if let Some(serialized_workspace) = serialized_workspace.as_ref() {
 1758                serialized_workspace.id
 1759            } else {
 1760                DB.next_id().await.unwrap_or_else(|_| Default::default())
 1761            };
 1762
 1763            let toolchains = DB.toolchains(workspace_id).await?;
 1764
 1765            for (toolchain, worktree_path, path) in toolchains {
 1766                let toolchain_path = PathBuf::from(toolchain.path.clone().to_string());
 1767                let Some(worktree_id) = project_handle.read_with(cx, |this, cx| {
 1768                    this.find_worktree(&worktree_path, cx)
 1769                        .and_then(|(worktree, rel_path)| {
 1770                            if rel_path.is_empty() {
 1771                                Some(worktree.read(cx).id())
 1772                            } else {
 1773                                None
 1774                            }
 1775                        })
 1776                }) else {
 1777                    // We did not find a worktree with a given path, but that's whatever.
 1778                    continue;
 1779                };
 1780                if !app_state.fs.is_file(toolchain_path.as_path()).await {
 1781                    continue;
 1782                }
 1783
 1784                project_handle
 1785                    .update(cx, |this, cx| {
 1786                        this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 1787                    })
 1788                    .await;
 1789            }
 1790            if let Some(workspace) = serialized_workspace.as_ref() {
 1791                project_handle.update(cx, |this, cx| {
 1792                    for (scope, toolchains) in &workspace.user_toolchains {
 1793                        for toolchain in toolchains {
 1794                            this.add_toolchain(toolchain.clone(), scope.clone(), cx);
 1795                        }
 1796                    }
 1797                });
 1798            }
 1799
 1800            let (window, workspace): (WindowHandle<MultiWorkspace>, Entity<Workspace>) =
 1801                if let Some(window) = requesting_window {
 1802                    let centered_layout = serialized_workspace
 1803                        .as_ref()
 1804                        .map(|w| w.centered_layout)
 1805                        .unwrap_or(false);
 1806
 1807                    let workspace = window.update(cx, |multi_workspace, window, cx| {
 1808                        let workspace = cx.new(|cx| {
 1809                            let mut workspace = Workspace::new(
 1810                                Some(workspace_id),
 1811                                project_handle.clone(),
 1812                                app_state.clone(),
 1813                                window,
 1814                                cx,
 1815                            );
 1816
 1817                            workspace.centered_layout = centered_layout;
 1818
 1819                            // Call init callback to add items before window renders
 1820                            if let Some(init) = init {
 1821                                init(&mut workspace, window, cx);
 1822                            }
 1823
 1824                            workspace
 1825                        });
 1826                        multi_workspace.activate(workspace.clone(), cx);
 1827                        workspace
 1828                    })?;
 1829                    (window, workspace)
 1830                } else {
 1831                    let window_bounds_override = window_bounds_env_override();
 1832
 1833                    let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 1834                        (Some(WindowBounds::Windowed(bounds)), None)
 1835                    } else if let Some(workspace) = serialized_workspace.as_ref()
 1836                        && let Some(display) = workspace.display
 1837                        && let Some(bounds) = workspace.window_bounds.as_ref()
 1838                    {
 1839                        // Reopening an existing workspace - restore its saved bounds
 1840                        (Some(bounds.0), Some(display))
 1841                    } else if let Some((display, bounds)) =
 1842                        persistence::read_default_window_bounds()
 1843                    {
 1844                        // New or empty workspace - use the last known window bounds
 1845                        (Some(bounds), Some(display))
 1846                    } else {
 1847                        // New window - let GPUI's default_bounds() handle cascading
 1848                        (None, None)
 1849                    };
 1850
 1851                    // Use the serialized workspace to construct the new window
 1852                    let mut options = cx.update(|cx| (app_state.build_window_options)(display, cx));
 1853                    options.window_bounds = window_bounds;
 1854                    let centered_layout = serialized_workspace
 1855                        .as_ref()
 1856                        .map(|w| w.centered_layout)
 1857                        .unwrap_or(false);
 1858                    let window = cx.open_window(options, {
 1859                        let app_state = app_state.clone();
 1860                        let project_handle = project_handle.clone();
 1861                        move |window, cx| {
 1862                            let workspace = cx.new(|cx| {
 1863                                let mut workspace = Workspace::new(
 1864                                    Some(workspace_id),
 1865                                    project_handle,
 1866                                    app_state,
 1867                                    window,
 1868                                    cx,
 1869                                );
 1870                                workspace.centered_layout = centered_layout;
 1871
 1872                                // Call init callback to add items before window renders
 1873                                if let Some(init) = init {
 1874                                    init(&mut workspace, window, cx);
 1875                                }
 1876
 1877                                workspace
 1878                            });
 1879                            cx.new(|cx| MultiWorkspace::new(workspace, cx))
 1880                        }
 1881                    })?;
 1882                    let workspace =
 1883                        window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 1884                            multi_workspace.workspace().clone()
 1885                        })?;
 1886                    (window, workspace)
 1887                };
 1888
 1889            notify_if_database_failed(window, cx);
 1890            // Check if this is an empty workspace (no paths to open)
 1891            // An empty workspace is one where project_paths is empty
 1892            let is_empty_workspace = project_paths.is_empty();
 1893            // Check if serialized workspace has paths before it's moved
 1894            let serialized_workspace_has_paths = serialized_workspace
 1895                .as_ref()
 1896                .map(|ws| !ws.paths.is_empty())
 1897                .unwrap_or(false);
 1898
 1899            let opened_items = window
 1900                .update(cx, |_, window, cx| {
 1901                    workspace.update(cx, |_workspace: &mut Workspace, cx| {
 1902                        open_items(serialized_workspace, project_paths, window, cx)
 1903                    })
 1904                })?
 1905                .await
 1906                .unwrap_or_default();
 1907
 1908            // Restore default dock state for empty workspaces
 1909            // Only restore if:
 1910            // 1. This is an empty workspace (no paths), AND
 1911            // 2. The serialized workspace either doesn't exist or has no paths
 1912            if is_empty_workspace && !serialized_workspace_has_paths {
 1913                if let Some(default_docks) = persistence::read_default_dock_state() {
 1914                    window
 1915                        .update(cx, |_, window, cx| {
 1916                            workspace.update(cx, |workspace, cx| {
 1917                                for (dock, serialized_dock) in [
 1918                                    (&workspace.right_dock, &default_docks.right),
 1919                                    (&workspace.left_dock, &default_docks.left),
 1920                                    (&workspace.bottom_dock, &default_docks.bottom),
 1921                                ] {
 1922                                    dock.update(cx, |dock, cx| {
 1923                                        dock.serialized_dock = Some(serialized_dock.clone());
 1924                                        dock.restore_state(window, cx);
 1925                                    });
 1926                                }
 1927                                cx.notify();
 1928                            });
 1929                        })
 1930                        .log_err();
 1931                }
 1932            }
 1933
 1934            window
 1935                .update(cx, |_, _window, cx| {
 1936                    workspace.update(cx, |this: &mut Workspace, cx| {
 1937                        this.update_history(cx);
 1938                    });
 1939                })
 1940                .log_err();
 1941            Ok((window, opened_items))
 1942        })
 1943    }
 1944
 1945    pub fn weak_handle(&self) -> WeakEntity<Self> {
 1946        self.weak_self.clone()
 1947    }
 1948
 1949    pub fn left_dock(&self) -> &Entity<Dock> {
 1950        &self.left_dock
 1951    }
 1952
 1953    pub fn bottom_dock(&self) -> &Entity<Dock> {
 1954        &self.bottom_dock
 1955    }
 1956
 1957    pub fn set_bottom_dock_layout(
 1958        &mut self,
 1959        layout: BottomDockLayout,
 1960        window: &mut Window,
 1961        cx: &mut Context<Self>,
 1962    ) {
 1963        let fs = self.project().read(cx).fs();
 1964        settings::update_settings_file(fs.clone(), cx, move |content, _cx| {
 1965            content.workspace.bottom_dock_layout = Some(layout);
 1966        });
 1967
 1968        cx.notify();
 1969        self.serialize_workspace(window, cx);
 1970    }
 1971
 1972    pub fn right_dock(&self) -> &Entity<Dock> {
 1973        &self.right_dock
 1974    }
 1975
 1976    pub fn all_docks(&self) -> [&Entity<Dock>; 3] {
 1977        [&self.left_dock, &self.bottom_dock, &self.right_dock]
 1978    }
 1979
 1980    pub fn dock_at_position(&self, position: DockPosition) -> &Entity<Dock> {
 1981        match position {
 1982            DockPosition::Left => &self.left_dock,
 1983            DockPosition::Bottom => &self.bottom_dock,
 1984            DockPosition::Right => &self.right_dock,
 1985        }
 1986    }
 1987
 1988    pub fn is_edited(&self) -> bool {
 1989        self.window_edited
 1990    }
 1991
 1992    pub fn add_panel<T: Panel>(
 1993        &mut self,
 1994        panel: Entity<T>,
 1995        window: &mut Window,
 1996        cx: &mut Context<Self>,
 1997    ) {
 1998        let focus_handle = panel.panel_focus_handle(cx);
 1999        cx.on_focus_in(&focus_handle, window, Self::handle_panel_focused)
 2000            .detach();
 2001
 2002        let dock_position = panel.position(window, cx);
 2003        let dock = self.dock_at_position(dock_position);
 2004
 2005        dock.update(cx, |dock, cx| {
 2006            dock.add_panel(panel, self.weak_self.clone(), window, cx)
 2007        });
 2008    }
 2009
 2010    pub fn remove_panel<T: Panel>(
 2011        &mut self,
 2012        panel: &Entity<T>,
 2013        window: &mut Window,
 2014        cx: &mut Context<Self>,
 2015    ) {
 2016        for dock in [&self.left_dock, &self.bottom_dock, &self.right_dock] {
 2017            dock.update(cx, |dock, cx| dock.remove_panel(panel, window, cx));
 2018        }
 2019    }
 2020
 2021    pub fn status_bar(&self) -> &Entity<StatusBar> {
 2022        &self.status_bar
 2023    }
 2024
 2025    pub fn set_workspace_sidebar_open(&self, open: bool, cx: &mut App) {
 2026        self.status_bar.update(cx, |status_bar, cx| {
 2027            status_bar.set_workspace_sidebar_open(open, cx);
 2028        });
 2029    }
 2030
 2031    pub fn status_bar_visible(&self, cx: &App) -> bool {
 2032        StatusBarSettings::get_global(cx).show
 2033    }
 2034
 2035    pub fn app_state(&self) -> &Arc<AppState> {
 2036        &self.app_state
 2037    }
 2038
 2039    pub fn user_store(&self) -> &Entity<UserStore> {
 2040        &self.app_state.user_store
 2041    }
 2042
 2043    pub fn project(&self) -> &Entity<Project> {
 2044        &self.project
 2045    }
 2046
 2047    pub fn path_style(&self, cx: &App) -> PathStyle {
 2048        self.project.read(cx).path_style(cx)
 2049    }
 2050
 2051    pub fn recently_activated_items(&self, cx: &App) -> HashMap<EntityId, usize> {
 2052        let mut history: HashMap<EntityId, usize> = HashMap::default();
 2053
 2054        for pane_handle in &self.panes {
 2055            let pane = pane_handle.read(cx);
 2056
 2057            for entry in pane.activation_history() {
 2058                history.insert(
 2059                    entry.entity_id,
 2060                    history
 2061                        .get(&entry.entity_id)
 2062                        .cloned()
 2063                        .unwrap_or(0)
 2064                        .max(entry.timestamp),
 2065                );
 2066            }
 2067        }
 2068
 2069        history
 2070    }
 2071
 2072    pub fn recent_active_item_by_type<T: 'static>(&self, cx: &App) -> Option<Entity<T>> {
 2073        let mut recent_item: Option<Entity<T>> = None;
 2074        let mut recent_timestamp = 0;
 2075        for pane_handle in &self.panes {
 2076            let pane = pane_handle.read(cx);
 2077            let item_map: HashMap<EntityId, &Box<dyn ItemHandle>> =
 2078                pane.items().map(|item| (item.item_id(), item)).collect();
 2079            for entry in pane.activation_history() {
 2080                if entry.timestamp > recent_timestamp
 2081                    && let Some(&item) = item_map.get(&entry.entity_id)
 2082                    && let Some(typed_item) = item.act_as::<T>(cx)
 2083                {
 2084                    recent_timestamp = entry.timestamp;
 2085                    recent_item = Some(typed_item);
 2086                }
 2087            }
 2088        }
 2089        recent_item
 2090    }
 2091
 2092    pub fn recent_navigation_history_iter(
 2093        &self,
 2094        cx: &App,
 2095    ) -> impl Iterator<Item = (ProjectPath, Option<PathBuf>)> + use<> {
 2096        let mut abs_paths_opened: HashMap<PathBuf, HashSet<ProjectPath>> = HashMap::default();
 2097        let mut history: HashMap<ProjectPath, (Option<PathBuf>, usize)> = HashMap::default();
 2098
 2099        for pane in &self.panes {
 2100            let pane = pane.read(cx);
 2101
 2102            pane.nav_history()
 2103                .for_each_entry(cx, |entry, (project_path, fs_path)| {
 2104                    if let Some(fs_path) = &fs_path {
 2105                        abs_paths_opened
 2106                            .entry(fs_path.clone())
 2107                            .or_default()
 2108                            .insert(project_path.clone());
 2109                    }
 2110                    let timestamp = entry.timestamp;
 2111                    match history.entry(project_path) {
 2112                        hash_map::Entry::Occupied(mut entry) => {
 2113                            let (_, old_timestamp) = entry.get();
 2114                            if &timestamp > old_timestamp {
 2115                                entry.insert((fs_path, timestamp));
 2116                            }
 2117                        }
 2118                        hash_map::Entry::Vacant(entry) => {
 2119                            entry.insert((fs_path, timestamp));
 2120                        }
 2121                    }
 2122                });
 2123
 2124            if let Some(item) = pane.active_item()
 2125                && let Some(project_path) = item.project_path(cx)
 2126            {
 2127                let fs_path = self.project.read(cx).absolute_path(&project_path, cx);
 2128
 2129                if let Some(fs_path) = &fs_path {
 2130                    abs_paths_opened
 2131                        .entry(fs_path.clone())
 2132                        .or_default()
 2133                        .insert(project_path.clone());
 2134                }
 2135
 2136                history.insert(project_path, (fs_path, std::usize::MAX));
 2137            }
 2138        }
 2139
 2140        history
 2141            .into_iter()
 2142            .sorted_by_key(|(_, (_, order))| *order)
 2143            .map(|(project_path, (fs_path, _))| (project_path, fs_path))
 2144            .rev()
 2145            .filter(move |(history_path, abs_path)| {
 2146                let latest_project_path_opened = abs_path
 2147                    .as_ref()
 2148                    .and_then(|abs_path| abs_paths_opened.get(abs_path))
 2149                    .and_then(|project_paths| {
 2150                        project_paths
 2151                            .iter()
 2152                            .max_by(|b1, b2| b1.worktree_id.cmp(&b2.worktree_id))
 2153                    });
 2154
 2155                latest_project_path_opened.is_none_or(|path| path == history_path)
 2156            })
 2157    }
 2158
 2159    pub fn recent_navigation_history(
 2160        &self,
 2161        limit: Option<usize>,
 2162        cx: &App,
 2163    ) -> Vec<(ProjectPath, Option<PathBuf>)> {
 2164        self.recent_navigation_history_iter(cx)
 2165            .take(limit.unwrap_or(usize::MAX))
 2166            .collect()
 2167    }
 2168
 2169    pub fn clear_navigation_history(&mut self, _window: &mut Window, cx: &mut Context<Workspace>) {
 2170        for pane in &self.panes {
 2171            pane.update(cx, |pane, cx| pane.nav_history_mut().clear(cx));
 2172        }
 2173    }
 2174
 2175    fn navigate_history(
 2176        &mut self,
 2177        pane: WeakEntity<Pane>,
 2178        mode: NavigationMode,
 2179        window: &mut Window,
 2180        cx: &mut Context<Workspace>,
 2181    ) -> Task<Result<()>> {
 2182        self.navigate_history_impl(pane, mode, window, |history, cx| history.pop(mode, cx), cx)
 2183    }
 2184
 2185    fn navigate_tag_history(
 2186        &mut self,
 2187        pane: WeakEntity<Pane>,
 2188        mode: TagNavigationMode,
 2189        window: &mut Window,
 2190        cx: &mut Context<Workspace>,
 2191    ) -> Task<Result<()>> {
 2192        self.navigate_history_impl(
 2193            pane,
 2194            NavigationMode::Normal,
 2195            window,
 2196            |history, _cx| history.pop_tag(mode),
 2197            cx,
 2198        )
 2199    }
 2200
 2201    fn navigate_history_impl(
 2202        &mut self,
 2203        pane: WeakEntity<Pane>,
 2204        mode: NavigationMode,
 2205        window: &mut Window,
 2206        mut cb: impl FnMut(&mut NavHistory, &mut App) -> Option<NavigationEntry>,
 2207        cx: &mut Context<Workspace>,
 2208    ) -> Task<Result<()>> {
 2209        let to_load = if let Some(pane) = pane.upgrade() {
 2210            pane.update(cx, |pane, cx| {
 2211                window.focus(&pane.focus_handle(cx), cx);
 2212                loop {
 2213                    // Retrieve the weak item handle from the history.
 2214                    let entry = cb(pane.nav_history_mut(), cx)?;
 2215
 2216                    // If the item is still present in this pane, then activate it.
 2217                    if let Some(index) = entry
 2218                        .item
 2219                        .upgrade()
 2220                        .and_then(|v| pane.index_for_item(v.as_ref()))
 2221                    {
 2222                        let prev_active_item_index = pane.active_item_index();
 2223                        pane.nav_history_mut().set_mode(mode);
 2224                        pane.activate_item(index, true, true, window, cx);
 2225                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2226
 2227                        let mut navigated = prev_active_item_index != pane.active_item_index();
 2228                        if let Some(data) = entry.data {
 2229                            navigated |= pane.active_item()?.navigate(data, window, cx);
 2230                        }
 2231
 2232                        if navigated {
 2233                            break None;
 2234                        }
 2235                    } else {
 2236                        // If the item is no longer present in this pane, then retrieve its
 2237                        // path info in order to reopen it.
 2238                        break pane
 2239                            .nav_history()
 2240                            .path_for_item(entry.item.id())
 2241                            .map(|(project_path, abs_path)| (project_path, abs_path, entry));
 2242                    }
 2243                }
 2244            })
 2245        } else {
 2246            None
 2247        };
 2248
 2249        if let Some((project_path, abs_path, entry)) = to_load {
 2250            // If the item was no longer present, then load it again from its previous path, first try the local path
 2251            let open_by_project_path = self.load_path(project_path.clone(), window, cx);
 2252
 2253            cx.spawn_in(window, async move  |workspace, cx| {
 2254                let open_by_project_path = open_by_project_path.await;
 2255                let mut navigated = false;
 2256                match open_by_project_path
 2257                    .with_context(|| format!("Navigating to {project_path:?}"))
 2258                {
 2259                    Ok((project_entry_id, build_item)) => {
 2260                        let prev_active_item_id = pane.update(cx, |pane, _| {
 2261                            pane.nav_history_mut().set_mode(mode);
 2262                            pane.active_item().map(|p| p.item_id())
 2263                        })?;
 2264
 2265                        pane.update_in(cx, |pane, window, cx| {
 2266                            let item = pane.open_item(
 2267                                project_entry_id,
 2268                                project_path,
 2269                                true,
 2270                                entry.is_preview,
 2271                                true,
 2272                                None,
 2273                                window, cx,
 2274                                build_item,
 2275                            );
 2276                            navigated |= Some(item.item_id()) != prev_active_item_id;
 2277                            pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2278                            if let Some(data) = entry.data {
 2279                                navigated |= item.navigate(data, window, cx);
 2280                            }
 2281                        })?;
 2282                    }
 2283                    Err(open_by_project_path_e) => {
 2284                        // Fall back to opening by abs path, in case an external file was opened and closed,
 2285                        // and its worktree is now dropped
 2286                        if let Some(abs_path) = abs_path {
 2287                            let prev_active_item_id = pane.update(cx, |pane, _| {
 2288                                pane.nav_history_mut().set_mode(mode);
 2289                                pane.active_item().map(|p| p.item_id())
 2290                            })?;
 2291                            let open_by_abs_path = workspace.update_in(cx, |workspace, window, cx| {
 2292                                workspace.open_abs_path(abs_path.clone(), OpenOptions { visible: Some(OpenVisible::None), ..Default::default() }, window, cx)
 2293                            })?;
 2294                            match open_by_abs_path
 2295                                .await
 2296                                .with_context(|| format!("Navigating to {abs_path:?}"))
 2297                            {
 2298                                Ok(item) => {
 2299                                    pane.update_in(cx, |pane, window, cx| {
 2300                                        navigated |= Some(item.item_id()) != prev_active_item_id;
 2301                                        pane.nav_history_mut().set_mode(NavigationMode::Normal);
 2302                                        if let Some(data) = entry.data {
 2303                                            navigated |= item.navigate(data, window, cx);
 2304                                        }
 2305                                    })?;
 2306                                }
 2307                                Err(open_by_abs_path_e) => {
 2308                                    log::error!("Failed to navigate history: {open_by_project_path_e:#} and {open_by_abs_path_e:#}");
 2309                                }
 2310                            }
 2311                        }
 2312                    }
 2313                }
 2314
 2315                if !navigated {
 2316                    workspace
 2317                        .update_in(cx, |workspace, window, cx| {
 2318                            Self::navigate_history(workspace, pane, mode, window, cx)
 2319                        })?
 2320                        .await?;
 2321                }
 2322
 2323                Ok(())
 2324            })
 2325        } else {
 2326            Task::ready(Ok(()))
 2327        }
 2328    }
 2329
 2330    pub fn go_back(
 2331        &mut self,
 2332        pane: WeakEntity<Pane>,
 2333        window: &mut Window,
 2334        cx: &mut Context<Workspace>,
 2335    ) -> Task<Result<()>> {
 2336        self.navigate_history(pane, NavigationMode::GoingBack, window, cx)
 2337    }
 2338
 2339    pub fn go_forward(
 2340        &mut self,
 2341        pane: WeakEntity<Pane>,
 2342        window: &mut Window,
 2343        cx: &mut Context<Workspace>,
 2344    ) -> Task<Result<()>> {
 2345        self.navigate_history(pane, NavigationMode::GoingForward, window, cx)
 2346    }
 2347
 2348    pub fn reopen_closed_item(
 2349        &mut self,
 2350        window: &mut Window,
 2351        cx: &mut Context<Workspace>,
 2352    ) -> Task<Result<()>> {
 2353        self.navigate_history(
 2354            self.active_pane().downgrade(),
 2355            NavigationMode::ReopeningClosedItem,
 2356            window,
 2357            cx,
 2358        )
 2359    }
 2360
 2361    pub fn client(&self) -> &Arc<Client> {
 2362        &self.app_state.client
 2363    }
 2364
 2365    pub fn set_titlebar_item(&mut self, item: AnyView, _: &mut Window, cx: &mut Context<Self>) {
 2366        self.titlebar_item = Some(item);
 2367        cx.notify();
 2368    }
 2369
 2370    pub fn set_prompt_for_new_path(&mut self, prompt: PromptForNewPath) {
 2371        self.on_prompt_for_new_path = Some(prompt)
 2372    }
 2373
 2374    pub fn set_prompt_for_open_path(&mut self, prompt: PromptForOpenPath) {
 2375        self.on_prompt_for_open_path = Some(prompt)
 2376    }
 2377
 2378    pub fn set_terminal_provider(&mut self, provider: impl TerminalProvider + 'static) {
 2379        self.terminal_provider = Some(Box::new(provider));
 2380    }
 2381
 2382    pub fn set_debugger_provider(&mut self, provider: impl DebuggerProvider + 'static) {
 2383        self.debugger_provider = Some(Arc::new(provider));
 2384    }
 2385
 2386    pub fn debugger_provider(&self) -> Option<Arc<dyn DebuggerProvider>> {
 2387        self.debugger_provider.clone()
 2388    }
 2389
 2390    pub fn prompt_for_open_path(
 2391        &mut self,
 2392        path_prompt_options: PathPromptOptions,
 2393        lister: DirectoryLister,
 2394        window: &mut Window,
 2395        cx: &mut Context<Self>,
 2396    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2397        if !lister.is_local(cx) || !WorkspaceSettings::get_global(cx).use_system_path_prompts {
 2398            let prompt = self.on_prompt_for_open_path.take().unwrap();
 2399            let rx = prompt(self, lister, window, cx);
 2400            self.on_prompt_for_open_path = Some(prompt);
 2401            rx
 2402        } else {
 2403            let (tx, rx) = oneshot::channel();
 2404            let abs_path = cx.prompt_for_paths(path_prompt_options);
 2405
 2406            cx.spawn_in(window, async move |workspace, cx| {
 2407                let Ok(result) = abs_path.await else {
 2408                    return Ok(());
 2409                };
 2410
 2411                match result {
 2412                    Ok(result) => {
 2413                        tx.send(result).ok();
 2414                    }
 2415                    Err(err) => {
 2416                        let rx = workspace.update_in(cx, |workspace, window, cx| {
 2417                            workspace.show_portal_error(err.to_string(), cx);
 2418                            let prompt = workspace.on_prompt_for_open_path.take().unwrap();
 2419                            let rx = prompt(workspace, lister, window, cx);
 2420                            workspace.on_prompt_for_open_path = Some(prompt);
 2421                            rx
 2422                        })?;
 2423                        if let Ok(path) = rx.await {
 2424                            tx.send(path).ok();
 2425                        }
 2426                    }
 2427                };
 2428                anyhow::Ok(())
 2429            })
 2430            .detach();
 2431
 2432            rx
 2433        }
 2434    }
 2435
 2436    pub fn prompt_for_new_path(
 2437        &mut self,
 2438        lister: DirectoryLister,
 2439        suggested_name: Option<String>,
 2440        window: &mut Window,
 2441        cx: &mut Context<Self>,
 2442    ) -> oneshot::Receiver<Option<Vec<PathBuf>>> {
 2443        if self.project.read(cx).is_via_collab()
 2444            || self.project.read(cx).is_via_remote_server()
 2445            || !WorkspaceSettings::get_global(cx).use_system_path_prompts
 2446        {
 2447            let prompt = self.on_prompt_for_new_path.take().unwrap();
 2448            let rx = prompt(self, lister, suggested_name, window, cx);
 2449            self.on_prompt_for_new_path = Some(prompt);
 2450            return rx;
 2451        }
 2452
 2453        let (tx, rx) = oneshot::channel();
 2454        cx.spawn_in(window, async move |workspace, cx| {
 2455            let abs_path = workspace.update(cx, |workspace, cx| {
 2456                let relative_to = workspace
 2457                    .most_recent_active_path(cx)
 2458                    .and_then(|p| p.parent().map(|p| p.to_path_buf()))
 2459                    .or_else(|| {
 2460                        let project = workspace.project.read(cx);
 2461                        project.visible_worktrees(cx).find_map(|worktree| {
 2462                            Some(worktree.read(cx).as_local()?.abs_path().to_path_buf())
 2463                        })
 2464                    })
 2465                    .or_else(std::env::home_dir)
 2466                    .unwrap_or_else(|| PathBuf::from(""));
 2467                cx.prompt_for_new_path(&relative_to, suggested_name.as_deref())
 2468            })?;
 2469            let abs_path = match abs_path.await? {
 2470                Ok(path) => path,
 2471                Err(err) => {
 2472                    let rx = workspace.update_in(cx, |workspace, window, cx| {
 2473                        workspace.show_portal_error(err.to_string(), cx);
 2474
 2475                        let prompt = workspace.on_prompt_for_new_path.take().unwrap();
 2476                        let rx = prompt(workspace, lister, suggested_name, window, cx);
 2477                        workspace.on_prompt_for_new_path = Some(prompt);
 2478                        rx
 2479                    })?;
 2480                    if let Ok(path) = rx.await {
 2481                        tx.send(path).ok();
 2482                    }
 2483                    return anyhow::Ok(());
 2484                }
 2485            };
 2486
 2487            tx.send(abs_path.map(|path| vec![path])).ok();
 2488            anyhow::Ok(())
 2489        })
 2490        .detach();
 2491
 2492        rx
 2493    }
 2494
 2495    pub fn titlebar_item(&self) -> Option<AnyView> {
 2496        self.titlebar_item.clone()
 2497    }
 2498
 2499    /// Returns the worktree override set by the user (e.g., via the project dropdown).
 2500    /// When set, git-related operations should use this worktree instead of deriving
 2501    /// the active worktree from the focused file.
 2502    pub fn active_worktree_override(&self) -> Option<WorktreeId> {
 2503        self.active_worktree_override
 2504    }
 2505
 2506    pub fn set_active_worktree_override(
 2507        &mut self,
 2508        worktree_id: Option<WorktreeId>,
 2509        cx: &mut Context<Self>,
 2510    ) {
 2511        self.active_worktree_override = worktree_id;
 2512        cx.notify();
 2513    }
 2514
 2515    pub fn clear_active_worktree_override(&mut self, cx: &mut Context<Self>) {
 2516        self.active_worktree_override = None;
 2517        cx.notify();
 2518    }
 2519
 2520    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2521    ///
 2522    /// If the given workspace has a local project, then it will be passed
 2523    /// to the callback. Otherwise, a new empty window will be created.
 2524    pub fn with_local_workspace<T, F>(
 2525        &mut self,
 2526        window: &mut Window,
 2527        cx: &mut Context<Self>,
 2528        callback: F,
 2529    ) -> Task<Result<T>>
 2530    where
 2531        T: 'static,
 2532        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2533    {
 2534        if self.project.read(cx).is_local() {
 2535            Task::ready(Ok(callback(self, window, cx)))
 2536        } else {
 2537            let env = self.project.read(cx).cli_environment(cx);
 2538            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2539            cx.spawn_in(window, async move |_vh, cx| {
 2540                let (multi_workspace_window, _) = task.await?;
 2541                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2542                    let workspace = multi_workspace.workspace().clone();
 2543                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2544                })
 2545            })
 2546        }
 2547    }
 2548
 2549    /// Call the given callback with a workspace whose project is local or remote via WSL (allowing host access).
 2550    ///
 2551    /// If the given workspace has a local project, then it will be passed
 2552    /// to the callback. Otherwise, a new empty window will be created.
 2553    pub fn with_local_or_wsl_workspace<T, F>(
 2554        &mut self,
 2555        window: &mut Window,
 2556        cx: &mut Context<Self>,
 2557        callback: F,
 2558    ) -> Task<Result<T>>
 2559    where
 2560        T: 'static,
 2561        F: 'static + FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) -> T,
 2562    {
 2563        let project = self.project.read(cx);
 2564        if project.is_local() || project.is_via_wsl_with_host_interop(cx) {
 2565            Task::ready(Ok(callback(self, window, cx)))
 2566        } else {
 2567            let env = self.project.read(cx).cli_environment(cx);
 2568            let task = Self::new_local(Vec::new(), self.app_state.clone(), None, env, None, cx);
 2569            cx.spawn_in(window, async move |_vh, cx| {
 2570                let (multi_workspace_window, _) = task.await?;
 2571                multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 2572                    let workspace = multi_workspace.workspace().clone();
 2573                    workspace.update(cx, |workspace, cx| callback(workspace, window, cx))
 2574                })
 2575            })
 2576        }
 2577    }
 2578
 2579    pub fn worktrees<'a>(&self, cx: &'a App) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2580        self.project.read(cx).worktrees(cx)
 2581    }
 2582
 2583    pub fn visible_worktrees<'a>(
 2584        &self,
 2585        cx: &'a App,
 2586    ) -> impl 'a + Iterator<Item = Entity<Worktree>> {
 2587        self.project.read(cx).visible_worktrees(cx)
 2588    }
 2589
 2590    #[cfg(any(test, feature = "test-support"))]
 2591    pub fn worktree_scans_complete(&self, cx: &App) -> impl Future<Output = ()> + 'static + use<> {
 2592        let futures = self
 2593            .worktrees(cx)
 2594            .filter_map(|worktree| worktree.read(cx).as_local())
 2595            .map(|worktree| worktree.scan_complete())
 2596            .collect::<Vec<_>>();
 2597        async move {
 2598            for future in futures {
 2599                future.await;
 2600            }
 2601        }
 2602    }
 2603
 2604    pub fn close_global(cx: &mut App) {
 2605        cx.defer(|cx| {
 2606            cx.windows().iter().find(|window| {
 2607                window
 2608                    .update(cx, |_, window, _| {
 2609                        if window.is_window_active() {
 2610                            //This can only get called when the window's project connection has been lost
 2611                            //so we don't need to prompt the user for anything and instead just close the window
 2612                            window.remove_window();
 2613                            true
 2614                        } else {
 2615                            false
 2616                        }
 2617                    })
 2618                    .unwrap_or(false)
 2619            });
 2620        });
 2621    }
 2622
 2623    pub fn close_window(&mut self, _: &CloseWindow, window: &mut Window, cx: &mut Context<Self>) {
 2624        let prepare = self.prepare_to_close(CloseIntent::CloseWindow, window, cx);
 2625        cx.spawn_in(window, async move |_, cx| {
 2626            if prepare.await? {
 2627                cx.update(|window, _cx| window.remove_window())?;
 2628            }
 2629            anyhow::Ok(())
 2630        })
 2631        .detach_and_log_err(cx)
 2632    }
 2633
 2634    pub fn move_focused_panel_to_next_position(
 2635        &mut self,
 2636        _: &MoveFocusedPanelToNextPosition,
 2637        window: &mut Window,
 2638        cx: &mut Context<Self>,
 2639    ) {
 2640        let docks = self.all_docks();
 2641        let active_dock = docks
 2642            .into_iter()
 2643            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 2644
 2645        if let Some(dock) = active_dock {
 2646            dock.update(cx, |dock, cx| {
 2647                let active_panel = dock
 2648                    .active_panel()
 2649                    .filter(|panel| panel.panel_focus_handle(cx).contains_focused(window, cx));
 2650
 2651                if let Some(panel) = active_panel {
 2652                    panel.move_to_next_position(window, cx);
 2653                }
 2654            })
 2655        }
 2656    }
 2657
 2658    pub fn prepare_to_close(
 2659        &mut self,
 2660        close_intent: CloseIntent,
 2661        window: &mut Window,
 2662        cx: &mut Context<Self>,
 2663    ) -> Task<Result<bool>> {
 2664        let active_call = self.active_call().cloned();
 2665
 2666        cx.spawn_in(window, async move |this, cx| {
 2667            this.update(cx, |this, _| {
 2668                if close_intent == CloseIntent::CloseWindow {
 2669                    this.removing = true;
 2670                }
 2671            })?;
 2672
 2673            let workspace_count = cx.update(|_window, cx| {
 2674                cx.windows()
 2675                    .iter()
 2676                    .filter(|window| window.downcast::<MultiWorkspace>().is_some())
 2677                    .count()
 2678            })?;
 2679
 2680            #[cfg(target_os = "macos")]
 2681            let save_last_workspace = false;
 2682
 2683            // On Linux and Windows, closing the last window should restore the last workspace.
 2684            #[cfg(not(target_os = "macos"))]
 2685            let save_last_workspace = {
 2686                let remaining_workspaces = cx.update(|_window, cx| {
 2687                    cx.windows()
 2688                        .iter()
 2689                        .filter_map(|window| window.downcast::<MultiWorkspace>())
 2690                        .filter_map(|multi_workspace| {
 2691                            multi_workspace
 2692                                .update(cx, |multi_workspace, _, cx| {
 2693                                    multi_workspace.workspace().read(cx).removing
 2694                                })
 2695                                .ok()
 2696                        })
 2697                        .filter(|removing| !removing)
 2698                        .count()
 2699                })?;
 2700
 2701                close_intent != CloseIntent::ReplaceWindow && remaining_workspaces == 0
 2702            };
 2703
 2704            if let Some(active_call) = active_call
 2705                && workspace_count == 1
 2706                && active_call.read_with(cx, |call, _| call.room().is_some())
 2707            {
 2708                if close_intent == CloseIntent::CloseWindow {
 2709                    let answer = cx.update(|window, cx| {
 2710                        window.prompt(
 2711                            PromptLevel::Warning,
 2712                            "Do you want to leave the current call?",
 2713                            None,
 2714                            &["Close window and hang up", "Cancel"],
 2715                            cx,
 2716                        )
 2717                    })?;
 2718
 2719                    if answer.await.log_err() == Some(1) {
 2720                        return anyhow::Ok(false);
 2721                    } else {
 2722                        active_call
 2723                            .update(cx, |call, cx| call.hang_up(cx))
 2724                            .await
 2725                            .log_err();
 2726                    }
 2727                }
 2728                if close_intent == CloseIntent::ReplaceWindow {
 2729                    _ = active_call.update(cx, |this, cx| {
 2730                        let multi_workspace = cx
 2731                            .windows()
 2732                            .iter()
 2733                            .filter_map(|window| window.downcast::<MultiWorkspace>())
 2734                            .next()
 2735                            .unwrap();
 2736                        let project = multi_workspace
 2737                            .read(cx)?
 2738                            .workspace()
 2739                            .read(cx)
 2740                            .project
 2741                            .clone();
 2742                        if project.read(cx).is_shared() {
 2743                            this.unshare_project(project, cx)?;
 2744                        }
 2745                        Ok::<_, anyhow::Error>(())
 2746                    })?;
 2747                }
 2748            }
 2749
 2750            let save_result = this
 2751                .update_in(cx, |this, window, cx| {
 2752                    this.save_all_internal(SaveIntent::Close, window, cx)
 2753                })?
 2754                .await;
 2755
 2756            // If we're not quitting, but closing, we remove the workspace from
 2757            // the current session.
 2758            if close_intent != CloseIntent::Quit
 2759                && !save_last_workspace
 2760                && save_result.as_ref().is_ok_and(|&res| res)
 2761            {
 2762                this.update_in(cx, |this, window, cx| this.remove_from_session(window, cx))?
 2763                    .await;
 2764            }
 2765
 2766            save_result
 2767        })
 2768    }
 2769
 2770    fn save_all(&mut self, action: &SaveAll, window: &mut Window, cx: &mut Context<Self>) {
 2771        self.save_all_internal(
 2772            action.save_intent.unwrap_or(SaveIntent::SaveAll),
 2773            window,
 2774            cx,
 2775        )
 2776        .detach_and_log_err(cx);
 2777    }
 2778
 2779    fn send_keystrokes(
 2780        &mut self,
 2781        action: &SendKeystrokes,
 2782        window: &mut Window,
 2783        cx: &mut Context<Self>,
 2784    ) {
 2785        let keystrokes: Vec<Keystroke> = action
 2786            .0
 2787            .split(' ')
 2788            .flat_map(|k| Keystroke::parse(k).log_err())
 2789            .map(|k| {
 2790                cx.keyboard_mapper()
 2791                    .map_key_equivalent(k, false)
 2792                    .inner()
 2793                    .clone()
 2794            })
 2795            .collect();
 2796        let _ = self.send_keystrokes_impl(keystrokes, window, cx);
 2797    }
 2798
 2799    pub fn send_keystrokes_impl(
 2800        &mut self,
 2801        keystrokes: Vec<Keystroke>,
 2802        window: &mut Window,
 2803        cx: &mut Context<Self>,
 2804    ) -> Shared<Task<()>> {
 2805        let mut state = self.dispatching_keystrokes.borrow_mut();
 2806        if !state.dispatched.insert(keystrokes.clone()) {
 2807            cx.propagate();
 2808            return state.task.clone().unwrap();
 2809        }
 2810
 2811        state.queue.extend(keystrokes);
 2812
 2813        let keystrokes = self.dispatching_keystrokes.clone();
 2814        if state.task.is_none() {
 2815            state.task = Some(
 2816                window
 2817                    .spawn(cx, async move |cx| {
 2818                        // limit to 100 keystrokes to avoid infinite recursion.
 2819                        for _ in 0..100 {
 2820                            let mut state = keystrokes.borrow_mut();
 2821                            let Some(keystroke) = state.queue.pop_front() else {
 2822                                state.dispatched.clear();
 2823                                state.task.take();
 2824                                return;
 2825                            };
 2826                            drop(state);
 2827                            cx.update(|window, cx| {
 2828                                let focused = window.focused(cx);
 2829                                window.dispatch_keystroke(keystroke.clone(), cx);
 2830                                if window.focused(cx) != focused {
 2831                                    // dispatch_keystroke may cause the focus to change.
 2832                                    // draw's side effect is to schedule the FocusChanged events in the current flush effect cycle
 2833                                    // And we need that to happen before the next keystroke to keep vim mode happy...
 2834                                    // (Note that the tests always do this implicitly, so you must manually test with something like:
 2835                                    //   "bindings": { "g z": ["workspace::SendKeystrokes", ": j <enter> u"]}
 2836                                    // )
 2837                                    window.draw(cx).clear();
 2838                                }
 2839                            })
 2840                            .ok();
 2841                        }
 2842
 2843                        *keystrokes.borrow_mut() = Default::default();
 2844                        log::error!("over 100 keystrokes passed to send_keystrokes");
 2845                    })
 2846                    .shared(),
 2847            );
 2848        }
 2849        state.task.clone().unwrap()
 2850    }
 2851
 2852    fn save_all_internal(
 2853        &mut self,
 2854        mut save_intent: SaveIntent,
 2855        window: &mut Window,
 2856        cx: &mut Context<Self>,
 2857    ) -> Task<Result<bool>> {
 2858        if self.project.read(cx).is_disconnected(cx) {
 2859            return Task::ready(Ok(true));
 2860        }
 2861        let dirty_items = self
 2862            .panes
 2863            .iter()
 2864            .flat_map(|pane| {
 2865                pane.read(cx).items().filter_map(|item| {
 2866                    if item.is_dirty(cx) {
 2867                        item.tab_content_text(0, cx);
 2868                        Some((pane.downgrade(), item.boxed_clone()))
 2869                    } else {
 2870                        None
 2871                    }
 2872                })
 2873            })
 2874            .collect::<Vec<_>>();
 2875
 2876        let project = self.project.clone();
 2877        cx.spawn_in(window, async move |workspace, cx| {
 2878            let dirty_items = if save_intent == SaveIntent::Close && !dirty_items.is_empty() {
 2879                let (serialize_tasks, remaining_dirty_items) =
 2880                    workspace.update_in(cx, |workspace, window, cx| {
 2881                        let mut remaining_dirty_items = Vec::new();
 2882                        let mut serialize_tasks = Vec::new();
 2883                        for (pane, item) in dirty_items {
 2884                            if let Some(task) = item
 2885                                .to_serializable_item_handle(cx)
 2886                                .and_then(|handle| handle.serialize(workspace, true, window, cx))
 2887                            {
 2888                                serialize_tasks.push(task);
 2889                            } else {
 2890                                remaining_dirty_items.push((pane, item));
 2891                            }
 2892                        }
 2893                        (serialize_tasks, remaining_dirty_items)
 2894                    })?;
 2895
 2896                futures::future::try_join_all(serialize_tasks).await?;
 2897
 2898                if remaining_dirty_items.len() > 1 {
 2899                    let answer = workspace.update_in(cx, |_, window, cx| {
 2900                        let detail = Pane::file_names_for_prompt(
 2901                            &mut remaining_dirty_items.iter().map(|(_, handle)| handle),
 2902                            cx,
 2903                        );
 2904                        window.prompt(
 2905                            PromptLevel::Warning,
 2906                            "Do you want to save all changes in the following files?",
 2907                            Some(&detail),
 2908                            &["Save all", "Discard all", "Cancel"],
 2909                            cx,
 2910                        )
 2911                    })?;
 2912                    match answer.await.log_err() {
 2913                        Some(0) => save_intent = SaveIntent::SaveAll,
 2914                        Some(1) => save_intent = SaveIntent::Skip,
 2915                        Some(2) => return Ok(false),
 2916                        _ => {}
 2917                    }
 2918                }
 2919
 2920                remaining_dirty_items
 2921            } else {
 2922                dirty_items
 2923            };
 2924
 2925            for (pane, item) in dirty_items {
 2926                let (singleton, project_entry_ids) = cx.update(|_, cx| {
 2927                    (
 2928                        item.buffer_kind(cx) == ItemBufferKind::Singleton,
 2929                        item.project_entry_ids(cx),
 2930                    )
 2931                })?;
 2932                if (singleton || !project_entry_ids.is_empty())
 2933                    && !Pane::save_item(project.clone(), &pane, &*item, save_intent, cx).await?
 2934                {
 2935                    return Ok(false);
 2936                }
 2937            }
 2938            Ok(true)
 2939        })
 2940    }
 2941
 2942    pub fn open_workspace_for_paths(
 2943        &mut self,
 2944        replace_current_window: bool,
 2945        paths: Vec<PathBuf>,
 2946        window: &mut Window,
 2947        cx: &mut Context<Self>,
 2948    ) -> Task<Result<()>> {
 2949        let window_handle = window.window_handle().downcast::<MultiWorkspace>();
 2950        let is_remote = self.project.read(cx).is_via_collab();
 2951        let has_worktree = self.project.read(cx).worktrees(cx).next().is_some();
 2952        let has_dirty_items = self.items(cx).any(|item| item.is_dirty(cx));
 2953
 2954        let window_to_replace = if replace_current_window {
 2955            window_handle
 2956        } else if is_remote || has_worktree || has_dirty_items {
 2957            None
 2958        } else {
 2959            window_handle
 2960        };
 2961        let app_state = self.app_state.clone();
 2962
 2963        cx.spawn(async move |_, cx| {
 2964            cx.update(|cx| {
 2965                open_paths(
 2966                    &paths,
 2967                    app_state,
 2968                    OpenOptions {
 2969                        replace_window: window_to_replace,
 2970                        ..Default::default()
 2971                    },
 2972                    cx,
 2973                )
 2974            })
 2975            .await?;
 2976            Ok(())
 2977        })
 2978    }
 2979
 2980    #[allow(clippy::type_complexity)]
 2981    pub fn open_paths(
 2982        &mut self,
 2983        mut abs_paths: Vec<PathBuf>,
 2984        options: OpenOptions,
 2985        pane: Option<WeakEntity<Pane>>,
 2986        window: &mut Window,
 2987        cx: &mut Context<Self>,
 2988    ) -> Task<Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>> {
 2989        let fs = self.app_state.fs.clone();
 2990
 2991        let caller_ordered_abs_paths = abs_paths.clone();
 2992
 2993        // Sort the paths to ensure we add worktrees for parents before their children.
 2994        abs_paths.sort_unstable();
 2995        cx.spawn_in(window, async move |this, cx| {
 2996            let mut tasks = Vec::with_capacity(abs_paths.len());
 2997
 2998            for abs_path in &abs_paths {
 2999                let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3000                    OpenVisible::All => Some(true),
 3001                    OpenVisible::None => Some(false),
 3002                    OpenVisible::OnlyFiles => match fs.metadata(abs_path).await.log_err() {
 3003                        Some(Some(metadata)) => Some(!metadata.is_dir),
 3004                        Some(None) => Some(true),
 3005                        None => None,
 3006                    },
 3007                    OpenVisible::OnlyDirectories => match fs.metadata(abs_path).await.log_err() {
 3008                        Some(Some(metadata)) => Some(metadata.is_dir),
 3009                        Some(None) => Some(false),
 3010                        None => None,
 3011                    },
 3012                };
 3013                let project_path = match visible {
 3014                    Some(visible) => match this
 3015                        .update(cx, |this, cx| {
 3016                            Workspace::project_path_for_path(
 3017                                this.project.clone(),
 3018                                abs_path,
 3019                                visible,
 3020                                cx,
 3021                            )
 3022                        })
 3023                        .log_err()
 3024                    {
 3025                        Some(project_path) => project_path.await.log_err(),
 3026                        None => None,
 3027                    },
 3028                    None => None,
 3029                };
 3030
 3031                let this = this.clone();
 3032                let abs_path: Arc<Path> = SanitizedPath::new(&abs_path).as_path().into();
 3033                let fs = fs.clone();
 3034                let pane = pane.clone();
 3035                let task = cx.spawn(async move |cx| {
 3036                    let (_worktree, project_path) = project_path?;
 3037                    if fs.is_dir(&abs_path).await {
 3038                        // Opening a directory should not race to update the active entry.
 3039                        // We'll select/reveal a deterministic final entry after all paths finish opening.
 3040                        None
 3041                    } else {
 3042                        Some(
 3043                            this.update_in(cx, |this, window, cx| {
 3044                                this.open_path(
 3045                                    project_path,
 3046                                    pane,
 3047                                    options.focus.unwrap_or(true),
 3048                                    window,
 3049                                    cx,
 3050                                )
 3051                            })
 3052                            .ok()?
 3053                            .await,
 3054                        )
 3055                    }
 3056                });
 3057                tasks.push(task);
 3058            }
 3059
 3060            let results = futures::future::join_all(tasks).await;
 3061
 3062            // Determine the winner using the fake/abstract FS metadata, not `Path::is_dir`.
 3063            let mut winner: Option<(PathBuf, bool)> = None;
 3064            for abs_path in caller_ordered_abs_paths.into_iter().rev() {
 3065                if let Some(Some(metadata)) = fs.metadata(&abs_path).await.log_err() {
 3066                    if !metadata.is_dir {
 3067                        winner = Some((abs_path, false));
 3068                        break;
 3069                    }
 3070                    if winner.is_none() {
 3071                        winner = Some((abs_path, true));
 3072                    }
 3073                } else if winner.is_none() {
 3074                    winner = Some((abs_path, false));
 3075                }
 3076            }
 3077
 3078            // Compute the winner entry id on the foreground thread and emit once, after all
 3079            // paths finish opening. This avoids races between concurrently-opening paths
 3080            // (directories in particular) and makes the resulting project panel selection
 3081            // deterministic.
 3082            if let Some((winner_abs_path, winner_is_dir)) = winner {
 3083                'emit_winner: {
 3084                    let winner_abs_path: Arc<Path> =
 3085                        SanitizedPath::new(&winner_abs_path).as_path().into();
 3086
 3087                    let visible = match options.visible.as_ref().unwrap_or(&OpenVisible::None) {
 3088                        OpenVisible::All => true,
 3089                        OpenVisible::None => false,
 3090                        OpenVisible::OnlyFiles => !winner_is_dir,
 3091                        OpenVisible::OnlyDirectories => winner_is_dir,
 3092                    };
 3093
 3094                    let Some(worktree_task) = this
 3095                        .update(cx, |workspace, cx| {
 3096                            workspace.project.update(cx, |project, cx| {
 3097                                project.find_or_create_worktree(
 3098                                    winner_abs_path.as_ref(),
 3099                                    visible,
 3100                                    cx,
 3101                                )
 3102                            })
 3103                        })
 3104                        .ok()
 3105                    else {
 3106                        break 'emit_winner;
 3107                    };
 3108
 3109                    let Ok((worktree, _)) = worktree_task.await else {
 3110                        break 'emit_winner;
 3111                    };
 3112
 3113                    let Ok(Some(entry_id)) = this.update(cx, |_, cx| {
 3114                        let worktree = worktree.read(cx);
 3115                        let worktree_abs_path = worktree.abs_path();
 3116                        let entry = if winner_abs_path.as_ref() == worktree_abs_path.as_ref() {
 3117                            worktree.root_entry()
 3118                        } else {
 3119                            winner_abs_path
 3120                                .strip_prefix(worktree_abs_path.as_ref())
 3121                                .ok()
 3122                                .and_then(|relative_path| {
 3123                                    let relative_path =
 3124                                        RelPath::new(relative_path, PathStyle::local())
 3125                                            .log_err()?;
 3126                                    worktree.entry_for_path(&relative_path)
 3127                                })
 3128                        }?;
 3129                        Some(entry.id)
 3130                    }) else {
 3131                        break 'emit_winner;
 3132                    };
 3133
 3134                    this.update(cx, |workspace, cx| {
 3135                        workspace.project.update(cx, |_, cx| {
 3136                            cx.emit(project::Event::ActiveEntryChanged(Some(entry_id)));
 3137                        });
 3138                    })
 3139                    .ok();
 3140                }
 3141            }
 3142
 3143            results
 3144        })
 3145    }
 3146
 3147    pub fn open_resolved_path(
 3148        &mut self,
 3149        path: ResolvedPath,
 3150        window: &mut Window,
 3151        cx: &mut Context<Self>,
 3152    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3153        match path {
 3154            ResolvedPath::ProjectPath { project_path, .. } => {
 3155                self.open_path(project_path, None, true, window, cx)
 3156            }
 3157            ResolvedPath::AbsPath { path, .. } => self.open_abs_path(
 3158                PathBuf::from(path),
 3159                OpenOptions {
 3160                    visible: Some(OpenVisible::None),
 3161                    ..Default::default()
 3162                },
 3163                window,
 3164                cx,
 3165            ),
 3166        }
 3167    }
 3168
 3169    pub fn absolute_path_of_worktree(
 3170        &self,
 3171        worktree_id: WorktreeId,
 3172        cx: &mut Context<Self>,
 3173    ) -> Option<PathBuf> {
 3174        self.project
 3175            .read(cx)
 3176            .worktree_for_id(worktree_id, cx)
 3177            // TODO: use `abs_path` or `root_dir`
 3178            .map(|wt| wt.read(cx).abs_path().as_ref().to_path_buf())
 3179    }
 3180
 3181    fn add_folder_to_project(
 3182        &mut self,
 3183        _: &AddFolderToProject,
 3184        window: &mut Window,
 3185        cx: &mut Context<Self>,
 3186    ) {
 3187        let project = self.project.read(cx);
 3188        if project.is_via_collab() {
 3189            self.show_error(
 3190                &anyhow!("You cannot add folders to someone else's project"),
 3191                cx,
 3192            );
 3193            return;
 3194        }
 3195        let paths = self.prompt_for_open_path(
 3196            PathPromptOptions {
 3197                files: false,
 3198                directories: true,
 3199                multiple: true,
 3200                prompt: None,
 3201            },
 3202            DirectoryLister::Project(self.project.clone()),
 3203            window,
 3204            cx,
 3205        );
 3206        cx.spawn_in(window, async move |this, cx| {
 3207            if let Some(paths) = paths.await.log_err().flatten() {
 3208                let results = this
 3209                    .update_in(cx, |this, window, cx| {
 3210                        this.open_paths(
 3211                            paths,
 3212                            OpenOptions {
 3213                                visible: Some(OpenVisible::All),
 3214                                ..Default::default()
 3215                            },
 3216                            None,
 3217                            window,
 3218                            cx,
 3219                        )
 3220                    })?
 3221                    .await;
 3222                for result in results.into_iter().flatten() {
 3223                    result.log_err();
 3224                }
 3225            }
 3226            anyhow::Ok(())
 3227        })
 3228        .detach_and_log_err(cx);
 3229    }
 3230
 3231    pub fn project_path_for_path(
 3232        project: Entity<Project>,
 3233        abs_path: &Path,
 3234        visible: bool,
 3235        cx: &mut App,
 3236    ) -> Task<Result<(Entity<Worktree>, ProjectPath)>> {
 3237        let entry = project.update(cx, |project, cx| {
 3238            project.find_or_create_worktree(abs_path, visible, cx)
 3239        });
 3240        cx.spawn(async move |cx| {
 3241            let (worktree, path) = entry.await?;
 3242            let worktree_id = worktree.read_with(cx, |t, _| t.id());
 3243            Ok((worktree, ProjectPath { worktree_id, path }))
 3244        })
 3245    }
 3246
 3247    pub fn items<'a>(&'a self, cx: &'a App) -> impl 'a + Iterator<Item = &'a Box<dyn ItemHandle>> {
 3248        self.panes.iter().flat_map(|pane| pane.read(cx).items())
 3249    }
 3250
 3251    pub fn item_of_type<T: Item>(&self, cx: &App) -> Option<Entity<T>> {
 3252        self.items_of_type(cx).max_by_key(|item| item.item_id())
 3253    }
 3254
 3255    pub fn items_of_type<'a, T: Item>(
 3256        &'a self,
 3257        cx: &'a App,
 3258    ) -> impl 'a + Iterator<Item = Entity<T>> {
 3259        self.panes
 3260            .iter()
 3261            .flat_map(|pane| pane.read(cx).items_of_type())
 3262    }
 3263
 3264    pub fn active_item(&self, cx: &App) -> Option<Box<dyn ItemHandle>> {
 3265        self.active_pane().read(cx).active_item()
 3266    }
 3267
 3268    pub fn active_item_as<I: 'static>(&self, cx: &App) -> Option<Entity<I>> {
 3269        let item = self.active_item(cx)?;
 3270        item.to_any_view().downcast::<I>().ok()
 3271    }
 3272
 3273    fn active_project_path(&self, cx: &App) -> Option<ProjectPath> {
 3274        self.active_item(cx).and_then(|item| item.project_path(cx))
 3275    }
 3276
 3277    pub fn most_recent_active_path(&self, cx: &App) -> Option<PathBuf> {
 3278        self.recent_navigation_history_iter(cx)
 3279            .filter_map(|(path, abs_path)| {
 3280                let worktree = self
 3281                    .project
 3282                    .read(cx)
 3283                    .worktree_for_id(path.worktree_id, cx)?;
 3284                if worktree.read(cx).is_visible() {
 3285                    abs_path
 3286                } else {
 3287                    None
 3288                }
 3289            })
 3290            .next()
 3291    }
 3292
 3293    pub fn save_active_item(
 3294        &mut self,
 3295        save_intent: SaveIntent,
 3296        window: &mut Window,
 3297        cx: &mut App,
 3298    ) -> Task<Result<()>> {
 3299        let project = self.project.clone();
 3300        let pane = self.active_pane();
 3301        let item = pane.read(cx).active_item();
 3302        let pane = pane.downgrade();
 3303
 3304        window.spawn(cx, async move |cx| {
 3305            if let Some(item) = item {
 3306                Pane::save_item(project, &pane, item.as_ref(), save_intent, cx)
 3307                    .await
 3308                    .map(|_| ())
 3309            } else {
 3310                Ok(())
 3311            }
 3312        })
 3313    }
 3314
 3315    pub fn close_inactive_items_and_panes(
 3316        &mut self,
 3317        action: &CloseInactiveTabsAndPanes,
 3318        window: &mut Window,
 3319        cx: &mut Context<Self>,
 3320    ) {
 3321        if let Some(task) = self.close_all_internal(
 3322            true,
 3323            action.save_intent.unwrap_or(SaveIntent::Close),
 3324            window,
 3325            cx,
 3326        ) {
 3327            task.detach_and_log_err(cx)
 3328        }
 3329    }
 3330
 3331    pub fn close_all_items_and_panes(
 3332        &mut self,
 3333        action: &CloseAllItemsAndPanes,
 3334        window: &mut Window,
 3335        cx: &mut Context<Self>,
 3336    ) {
 3337        if let Some(task) = self.close_all_internal(
 3338            false,
 3339            action.save_intent.unwrap_or(SaveIntent::Close),
 3340            window,
 3341            cx,
 3342        ) {
 3343            task.detach_and_log_err(cx)
 3344        }
 3345    }
 3346
 3347    /// Closes the active item across all panes.
 3348    pub fn close_item_in_all_panes(
 3349        &mut self,
 3350        action: &CloseItemInAllPanes,
 3351        window: &mut Window,
 3352        cx: &mut Context<Self>,
 3353    ) {
 3354        let Some(active_item) = self.active_pane().read(cx).active_item() else {
 3355            return;
 3356        };
 3357
 3358        let save_intent = action.save_intent.unwrap_or(SaveIntent::Close);
 3359        let close_pinned = action.close_pinned;
 3360
 3361        if let Some(project_path) = active_item.project_path(cx) {
 3362            self.close_items_with_project_path(
 3363                &project_path,
 3364                save_intent,
 3365                close_pinned,
 3366                window,
 3367                cx,
 3368            );
 3369        } else if close_pinned || !self.active_pane().read(cx).is_active_item_pinned() {
 3370            let item_id = active_item.item_id();
 3371            self.active_pane().update(cx, |pane, cx| {
 3372                pane.close_item_by_id(item_id, save_intent, window, cx)
 3373                    .detach_and_log_err(cx);
 3374            });
 3375        }
 3376    }
 3377
 3378    /// Closes all items with the given project path across all panes.
 3379    pub fn close_items_with_project_path(
 3380        &mut self,
 3381        project_path: &ProjectPath,
 3382        save_intent: SaveIntent,
 3383        close_pinned: bool,
 3384        window: &mut Window,
 3385        cx: &mut Context<Self>,
 3386    ) {
 3387        let panes = self.panes().to_vec();
 3388        for pane in panes {
 3389            pane.update(cx, |pane, cx| {
 3390                pane.close_items_for_project_path(
 3391                    project_path,
 3392                    save_intent,
 3393                    close_pinned,
 3394                    window,
 3395                    cx,
 3396                )
 3397                .detach_and_log_err(cx);
 3398            });
 3399        }
 3400    }
 3401
 3402    fn close_all_internal(
 3403        &mut self,
 3404        retain_active_pane: bool,
 3405        save_intent: SaveIntent,
 3406        window: &mut Window,
 3407        cx: &mut Context<Self>,
 3408    ) -> Option<Task<Result<()>>> {
 3409        let current_pane = self.active_pane();
 3410
 3411        let mut tasks = Vec::new();
 3412
 3413        if retain_active_pane {
 3414            let current_pane_close = current_pane.update(cx, |pane, cx| {
 3415                pane.close_other_items(
 3416                    &CloseOtherItems {
 3417                        save_intent: None,
 3418                        close_pinned: false,
 3419                    },
 3420                    None,
 3421                    window,
 3422                    cx,
 3423                )
 3424            });
 3425
 3426            tasks.push(current_pane_close);
 3427        }
 3428
 3429        for pane in self.panes() {
 3430            if retain_active_pane && pane.entity_id() == current_pane.entity_id() {
 3431                continue;
 3432            }
 3433
 3434            let close_pane_items = pane.update(cx, |pane: &mut Pane, cx| {
 3435                pane.close_all_items(
 3436                    &CloseAllItems {
 3437                        save_intent: Some(save_intent),
 3438                        close_pinned: false,
 3439                    },
 3440                    window,
 3441                    cx,
 3442                )
 3443            });
 3444
 3445            tasks.push(close_pane_items)
 3446        }
 3447
 3448        if tasks.is_empty() {
 3449            None
 3450        } else {
 3451            Some(cx.spawn_in(window, async move |_, _| {
 3452                for task in tasks {
 3453                    task.await?
 3454                }
 3455                Ok(())
 3456            }))
 3457        }
 3458    }
 3459
 3460    pub fn is_dock_at_position_open(&self, position: DockPosition, cx: &mut Context<Self>) -> bool {
 3461        self.dock_at_position(position).read(cx).is_open()
 3462    }
 3463
 3464    pub fn toggle_dock(
 3465        &mut self,
 3466        dock_side: DockPosition,
 3467        window: &mut Window,
 3468        cx: &mut Context<Self>,
 3469    ) {
 3470        let mut focus_center = false;
 3471        let mut reveal_dock = false;
 3472
 3473        let other_is_zoomed = self.zoomed.is_some() && self.zoomed_position != Some(dock_side);
 3474        let was_visible = self.is_dock_at_position_open(dock_side, cx) && !other_is_zoomed;
 3475
 3476        if let Some(panel) = self.dock_at_position(dock_side).read(cx).active_panel() {
 3477            telemetry::event!(
 3478                "Panel Button Clicked",
 3479                name = panel.persistent_name(),
 3480                toggle_state = !was_visible
 3481            );
 3482        }
 3483        if was_visible {
 3484            self.save_open_dock_positions(cx);
 3485        }
 3486
 3487        let dock = self.dock_at_position(dock_side);
 3488        dock.update(cx, |dock, cx| {
 3489            dock.set_open(!was_visible, window, cx);
 3490
 3491            if dock.active_panel().is_none() {
 3492                let Some(panel_ix) = dock
 3493                    .first_enabled_panel_idx(cx)
 3494                    .log_with_level(log::Level::Info)
 3495                else {
 3496                    return;
 3497                };
 3498                dock.activate_panel(panel_ix, window, cx);
 3499            }
 3500
 3501            if let Some(active_panel) = dock.active_panel() {
 3502                if was_visible {
 3503                    if active_panel
 3504                        .panel_focus_handle(cx)
 3505                        .contains_focused(window, cx)
 3506                    {
 3507                        focus_center = true;
 3508                    }
 3509                } else {
 3510                    let focus_handle = &active_panel.panel_focus_handle(cx);
 3511                    window.focus(focus_handle, cx);
 3512                    reveal_dock = true;
 3513                }
 3514            }
 3515        });
 3516
 3517        if reveal_dock {
 3518            self.dismiss_zoomed_items_to_reveal(Some(dock_side), window, cx);
 3519        }
 3520
 3521        if focus_center {
 3522            self.active_pane
 3523                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3524        }
 3525
 3526        cx.notify();
 3527        self.serialize_workspace(window, cx);
 3528    }
 3529
 3530    fn active_dock(&self, window: &Window, cx: &Context<Self>) -> Option<&Entity<Dock>> {
 3531        self.all_docks().into_iter().find(|&dock| {
 3532            dock.read(cx).is_open() && dock.focus_handle(cx).contains_focused(window, cx)
 3533        })
 3534    }
 3535
 3536    fn close_active_dock(&mut self, window: &mut Window, cx: &mut Context<Self>) -> bool {
 3537        if let Some(dock) = self.active_dock(window, cx).cloned() {
 3538            self.save_open_dock_positions(cx);
 3539            dock.update(cx, |dock, cx| {
 3540                dock.set_open(false, window, cx);
 3541            });
 3542            return true;
 3543        }
 3544        false
 3545    }
 3546
 3547    pub fn close_all_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3548        self.save_open_dock_positions(cx);
 3549        for dock in self.all_docks() {
 3550            dock.update(cx, |dock, cx| {
 3551                dock.set_open(false, window, cx);
 3552            });
 3553        }
 3554
 3555        cx.focus_self(window);
 3556        cx.notify();
 3557        self.serialize_workspace(window, cx);
 3558    }
 3559
 3560    fn get_open_dock_positions(&self, cx: &Context<Self>) -> Vec<DockPosition> {
 3561        self.all_docks()
 3562            .into_iter()
 3563            .filter_map(|dock| {
 3564                let dock_ref = dock.read(cx);
 3565                if dock_ref.is_open() {
 3566                    Some(dock_ref.position())
 3567                } else {
 3568                    None
 3569                }
 3570            })
 3571            .collect()
 3572    }
 3573
 3574    /// Saves the positions of currently open docks.
 3575    ///
 3576    /// Updates `last_open_dock_positions` with positions of all currently open
 3577    /// docks, to later be restored by the 'Toggle All Docks' action.
 3578    fn save_open_dock_positions(&mut self, cx: &mut Context<Self>) {
 3579        let open_dock_positions = self.get_open_dock_positions(cx);
 3580        if !open_dock_positions.is_empty() {
 3581            self.last_open_dock_positions = open_dock_positions;
 3582        }
 3583    }
 3584
 3585    /// Toggles all docks between open and closed states.
 3586    ///
 3587    /// If any docks are open, closes all and remembers their positions. If all
 3588    /// docks are closed, restores the last remembered dock configuration.
 3589    fn toggle_all_docks(
 3590        &mut self,
 3591        _: &ToggleAllDocks,
 3592        window: &mut Window,
 3593        cx: &mut Context<Self>,
 3594    ) {
 3595        let open_dock_positions = self.get_open_dock_positions(cx);
 3596
 3597        if !open_dock_positions.is_empty() {
 3598            self.close_all_docks(window, cx);
 3599        } else if !self.last_open_dock_positions.is_empty() {
 3600            self.restore_last_open_docks(window, cx);
 3601        }
 3602    }
 3603
 3604    /// Reopens docks from the most recently remembered configuration.
 3605    ///
 3606    /// Opens all docks whose positions are stored in `last_open_dock_positions`
 3607    /// and clears the stored positions.
 3608    fn restore_last_open_docks(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3609        let positions_to_open = std::mem::take(&mut self.last_open_dock_positions);
 3610
 3611        for position in positions_to_open {
 3612            let dock = self.dock_at_position(position);
 3613            dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
 3614        }
 3615
 3616        cx.focus_self(window);
 3617        cx.notify();
 3618        self.serialize_workspace(window, cx);
 3619    }
 3620
 3621    /// Transfer focus to the panel of the given type.
 3622    pub fn focus_panel<T: Panel>(
 3623        &mut self,
 3624        window: &mut Window,
 3625        cx: &mut Context<Self>,
 3626    ) -> Option<Entity<T>> {
 3627        let panel = self.focus_or_unfocus_panel::<T>(window, cx, |_, _, _| true)?;
 3628        panel.to_any().downcast().ok()
 3629    }
 3630
 3631    /// Focus the panel of the given type if it isn't already focused. If it is
 3632    /// already focused, then transfer focus back to the workspace center.
 3633    pub fn toggle_panel_focus<T: Panel>(
 3634        &mut self,
 3635        window: &mut Window,
 3636        cx: &mut Context<Self>,
 3637    ) -> bool {
 3638        let mut did_focus_panel = false;
 3639        self.focus_or_unfocus_panel::<T>(window, cx, |panel, window, cx| {
 3640            did_focus_panel = !panel.panel_focus_handle(cx).contains_focused(window, cx);
 3641            did_focus_panel
 3642        });
 3643
 3644        telemetry::event!(
 3645            "Panel Button Clicked",
 3646            name = T::persistent_name(),
 3647            toggle_state = did_focus_panel
 3648        );
 3649
 3650        did_focus_panel
 3651    }
 3652
 3653    pub fn activate_panel_for_proto_id(
 3654        &mut self,
 3655        panel_id: PanelId,
 3656        window: &mut Window,
 3657        cx: &mut Context<Self>,
 3658    ) -> Option<Arc<dyn PanelHandle>> {
 3659        let mut panel = None;
 3660        for dock in self.all_docks() {
 3661            if let Some(panel_index) = dock.read(cx).panel_index_for_proto_id(panel_id) {
 3662                panel = dock.update(cx, |dock, cx| {
 3663                    dock.activate_panel(panel_index, window, cx);
 3664                    dock.set_open(true, window, cx);
 3665                    dock.active_panel().cloned()
 3666                });
 3667                break;
 3668            }
 3669        }
 3670
 3671        if panel.is_some() {
 3672            cx.notify();
 3673            self.serialize_workspace(window, cx);
 3674        }
 3675
 3676        panel
 3677    }
 3678
 3679    /// Focus or unfocus the given panel type, depending on the given callback.
 3680    fn focus_or_unfocus_panel<T: Panel>(
 3681        &mut self,
 3682        window: &mut Window,
 3683        cx: &mut Context<Self>,
 3684        mut should_focus: impl FnMut(&dyn PanelHandle, &mut Window, &mut Context<Dock>) -> bool,
 3685    ) -> Option<Arc<dyn PanelHandle>> {
 3686        let mut result_panel = None;
 3687        let mut serialize = false;
 3688        for dock in self.all_docks() {
 3689            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3690                let mut focus_center = false;
 3691                let panel = dock.update(cx, |dock, cx| {
 3692                    dock.activate_panel(panel_index, window, cx);
 3693
 3694                    let panel = dock.active_panel().cloned();
 3695                    if let Some(panel) = panel.as_ref() {
 3696                        if should_focus(&**panel, window, cx) {
 3697                            dock.set_open(true, window, cx);
 3698                            panel.panel_focus_handle(cx).focus(window, cx);
 3699                        } else {
 3700                            focus_center = true;
 3701                        }
 3702                    }
 3703                    panel
 3704                });
 3705
 3706                if focus_center {
 3707                    self.active_pane
 3708                        .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3709                }
 3710
 3711                result_panel = panel;
 3712                serialize = true;
 3713                break;
 3714            }
 3715        }
 3716
 3717        if serialize {
 3718            self.serialize_workspace(window, cx);
 3719        }
 3720
 3721        cx.notify();
 3722        result_panel
 3723    }
 3724
 3725    /// Open the panel of the given type
 3726    pub fn open_panel<T: Panel>(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 3727        for dock in self.all_docks() {
 3728            if let Some(panel_index) = dock.read(cx).panel_index_for_type::<T>() {
 3729                dock.update(cx, |dock, cx| {
 3730                    dock.activate_panel(panel_index, window, cx);
 3731                    dock.set_open(true, window, cx);
 3732                });
 3733            }
 3734        }
 3735    }
 3736
 3737    pub fn close_panel<T: Panel>(&self, window: &mut Window, cx: &mut Context<Self>) {
 3738        for dock in self.all_docks().iter() {
 3739            dock.update(cx, |dock, cx| {
 3740                if dock.panel::<T>().is_some() {
 3741                    dock.set_open(false, window, cx)
 3742                }
 3743            })
 3744        }
 3745    }
 3746
 3747    pub fn panel<T: Panel>(&self, cx: &App) -> Option<Entity<T>> {
 3748        self.all_docks()
 3749            .iter()
 3750            .find_map(|dock| dock.read(cx).panel::<T>())
 3751    }
 3752
 3753    fn dismiss_zoomed_items_to_reveal(
 3754        &mut self,
 3755        dock_to_reveal: Option<DockPosition>,
 3756        window: &mut Window,
 3757        cx: &mut Context<Self>,
 3758    ) {
 3759        // If a center pane is zoomed, unzoom it.
 3760        for pane in &self.panes {
 3761            if pane != &self.active_pane || dock_to_reveal.is_some() {
 3762                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 3763            }
 3764        }
 3765
 3766        // If another dock is zoomed, hide it.
 3767        let mut focus_center = false;
 3768        for dock in self.all_docks() {
 3769            dock.update(cx, |dock, cx| {
 3770                if Some(dock.position()) != dock_to_reveal
 3771                    && let Some(panel) = dock.active_panel()
 3772                    && panel.is_zoomed(window, cx)
 3773                {
 3774                    focus_center |= panel.panel_focus_handle(cx).contains_focused(window, cx);
 3775                    dock.set_open(false, window, cx);
 3776                }
 3777            });
 3778        }
 3779
 3780        if focus_center {
 3781            self.active_pane
 3782                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx))
 3783        }
 3784
 3785        if self.zoomed_position != dock_to_reveal {
 3786            self.zoomed = None;
 3787            self.zoomed_position = None;
 3788            cx.emit(Event::ZoomChanged);
 3789        }
 3790
 3791        cx.notify();
 3792    }
 3793
 3794    fn add_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 3795        let pane = cx.new(|cx| {
 3796            let mut pane = Pane::new(
 3797                self.weak_handle(),
 3798                self.project.clone(),
 3799                self.pane_history_timestamp.clone(),
 3800                None,
 3801                NewFile.boxed_clone(),
 3802                true,
 3803                window,
 3804                cx,
 3805            );
 3806            pane.set_can_split(Some(Arc::new(|_, _, _, _| true)));
 3807            pane
 3808        });
 3809        cx.subscribe_in(&pane, window, Self::handle_pane_event)
 3810            .detach();
 3811        self.panes.push(pane.clone());
 3812
 3813        window.focus(&pane.focus_handle(cx), cx);
 3814
 3815        cx.emit(Event::PaneAdded(pane.clone()));
 3816        pane
 3817    }
 3818
 3819    pub fn add_item_to_center(
 3820        &mut self,
 3821        item: Box<dyn ItemHandle>,
 3822        window: &mut Window,
 3823        cx: &mut Context<Self>,
 3824    ) -> bool {
 3825        if let Some(center_pane) = self.last_active_center_pane.clone() {
 3826            if let Some(center_pane) = center_pane.upgrade() {
 3827                center_pane.update(cx, |pane, cx| {
 3828                    pane.add_item(item, true, true, None, window, cx)
 3829                });
 3830                true
 3831            } else {
 3832                false
 3833            }
 3834        } else {
 3835            false
 3836        }
 3837    }
 3838
 3839    pub fn add_item_to_active_pane(
 3840        &mut self,
 3841        item: Box<dyn ItemHandle>,
 3842        destination_index: Option<usize>,
 3843        focus_item: bool,
 3844        window: &mut Window,
 3845        cx: &mut App,
 3846    ) {
 3847        self.add_item(
 3848            self.active_pane.clone(),
 3849            item,
 3850            destination_index,
 3851            false,
 3852            focus_item,
 3853            window,
 3854            cx,
 3855        )
 3856    }
 3857
 3858    pub fn add_item(
 3859        &mut self,
 3860        pane: Entity<Pane>,
 3861        item: Box<dyn ItemHandle>,
 3862        destination_index: Option<usize>,
 3863        activate_pane: bool,
 3864        focus_item: bool,
 3865        window: &mut Window,
 3866        cx: &mut App,
 3867    ) {
 3868        pane.update(cx, |pane, cx| {
 3869            pane.add_item(
 3870                item,
 3871                activate_pane,
 3872                focus_item,
 3873                destination_index,
 3874                window,
 3875                cx,
 3876            )
 3877        });
 3878    }
 3879
 3880    pub fn split_item(
 3881        &mut self,
 3882        split_direction: SplitDirection,
 3883        item: Box<dyn ItemHandle>,
 3884        window: &mut Window,
 3885        cx: &mut Context<Self>,
 3886    ) {
 3887        let new_pane = self.split_pane(self.active_pane.clone(), split_direction, window, cx);
 3888        self.add_item(new_pane, item, None, true, true, window, cx);
 3889    }
 3890
 3891    pub fn open_abs_path(
 3892        &mut self,
 3893        abs_path: PathBuf,
 3894        options: OpenOptions,
 3895        window: &mut Window,
 3896        cx: &mut Context<Self>,
 3897    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3898        cx.spawn_in(window, async move |workspace, cx| {
 3899            let open_paths_task_result = workspace
 3900                .update_in(cx, |workspace, window, cx| {
 3901                    workspace.open_paths(vec![abs_path.clone()], options, None, window, cx)
 3902                })
 3903                .with_context(|| format!("open abs path {abs_path:?} task spawn"))?
 3904                .await;
 3905            anyhow::ensure!(
 3906                open_paths_task_result.len() == 1,
 3907                "open abs path {abs_path:?} task returned incorrect number of results"
 3908            );
 3909            match open_paths_task_result
 3910                .into_iter()
 3911                .next()
 3912                .expect("ensured single task result")
 3913            {
 3914                Some(open_result) => {
 3915                    open_result.with_context(|| format!("open abs path {abs_path:?} task join"))
 3916                }
 3917                None => anyhow::bail!("open abs path {abs_path:?} task returned None"),
 3918            }
 3919        })
 3920    }
 3921
 3922    pub fn split_abs_path(
 3923        &mut self,
 3924        abs_path: PathBuf,
 3925        visible: bool,
 3926        window: &mut Window,
 3927        cx: &mut Context<Self>,
 3928    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3929        let project_path_task =
 3930            Workspace::project_path_for_path(self.project.clone(), &abs_path, visible, cx);
 3931        cx.spawn_in(window, async move |this, cx| {
 3932            let (_, path) = project_path_task.await?;
 3933            this.update_in(cx, |this, window, cx| this.split_path(path, window, cx))?
 3934                .await
 3935        })
 3936    }
 3937
 3938    pub fn open_path(
 3939        &mut self,
 3940        path: impl Into<ProjectPath>,
 3941        pane: Option<WeakEntity<Pane>>,
 3942        focus_item: bool,
 3943        window: &mut Window,
 3944        cx: &mut App,
 3945    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3946        self.open_path_preview(path, pane, focus_item, false, true, window, cx)
 3947    }
 3948
 3949    pub fn open_path_preview(
 3950        &mut self,
 3951        path: impl Into<ProjectPath>,
 3952        pane: Option<WeakEntity<Pane>>,
 3953        focus_item: bool,
 3954        allow_preview: bool,
 3955        activate: bool,
 3956        window: &mut Window,
 3957        cx: &mut App,
 3958    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3959        let pane = pane.unwrap_or_else(|| {
 3960            self.last_active_center_pane.clone().unwrap_or_else(|| {
 3961                self.panes
 3962                    .first()
 3963                    .expect("There must be an active pane")
 3964                    .downgrade()
 3965            })
 3966        });
 3967
 3968        let project_path = path.into();
 3969        let task = self.load_path(project_path.clone(), window, cx);
 3970        window.spawn(cx, async move |cx| {
 3971            let (project_entry_id, build_item) = task.await?;
 3972
 3973            pane.update_in(cx, |pane, window, cx| {
 3974                pane.open_item(
 3975                    project_entry_id,
 3976                    project_path,
 3977                    focus_item,
 3978                    allow_preview,
 3979                    activate,
 3980                    None,
 3981                    window,
 3982                    cx,
 3983                    build_item,
 3984                )
 3985            })
 3986        })
 3987    }
 3988
 3989    pub fn split_path(
 3990        &mut self,
 3991        path: impl Into<ProjectPath>,
 3992        window: &mut Window,
 3993        cx: &mut Context<Self>,
 3994    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 3995        self.split_path_preview(path, false, None, window, cx)
 3996    }
 3997
 3998    pub fn split_path_preview(
 3999        &mut self,
 4000        path: impl Into<ProjectPath>,
 4001        allow_preview: bool,
 4002        split_direction: Option<SplitDirection>,
 4003        window: &mut Window,
 4004        cx: &mut Context<Self>,
 4005    ) -> Task<anyhow::Result<Box<dyn ItemHandle>>> {
 4006        let pane = self.last_active_center_pane.clone().unwrap_or_else(|| {
 4007            self.panes
 4008                .first()
 4009                .expect("There must be an active pane")
 4010                .downgrade()
 4011        });
 4012
 4013        if let Member::Pane(center_pane) = &self.center.root
 4014            && center_pane.read(cx).items_len() == 0
 4015        {
 4016            return self.open_path(path, Some(pane), true, window, cx);
 4017        }
 4018
 4019        let project_path = path.into();
 4020        let task = self.load_path(project_path.clone(), window, cx);
 4021        cx.spawn_in(window, async move |this, cx| {
 4022            let (project_entry_id, build_item) = task.await?;
 4023            this.update_in(cx, move |this, window, cx| -> Option<_> {
 4024                let pane = pane.upgrade()?;
 4025                let new_pane = this.split_pane(
 4026                    pane,
 4027                    split_direction.unwrap_or(SplitDirection::Right),
 4028                    window,
 4029                    cx,
 4030                );
 4031                new_pane.update(cx, |new_pane, cx| {
 4032                    Some(new_pane.open_item(
 4033                        project_entry_id,
 4034                        project_path,
 4035                        true,
 4036                        allow_preview,
 4037                        true,
 4038                        None,
 4039                        window,
 4040                        cx,
 4041                        build_item,
 4042                    ))
 4043                })
 4044            })
 4045            .map(|option| option.context("pane was dropped"))?
 4046        })
 4047    }
 4048
 4049    fn load_path(
 4050        &mut self,
 4051        path: ProjectPath,
 4052        window: &mut Window,
 4053        cx: &mut App,
 4054    ) -> Task<Result<(Option<ProjectEntryId>, WorkspaceItemBuilder)>> {
 4055        let registry = cx.default_global::<ProjectItemRegistry>().clone();
 4056        registry.open_path(self.project(), &path, window, cx)
 4057    }
 4058
 4059    pub fn find_project_item<T>(
 4060        &self,
 4061        pane: &Entity<Pane>,
 4062        project_item: &Entity<T::Item>,
 4063        cx: &App,
 4064    ) -> Option<Entity<T>>
 4065    where
 4066        T: ProjectItem,
 4067    {
 4068        use project::ProjectItem as _;
 4069        let project_item = project_item.read(cx);
 4070        let entry_id = project_item.entry_id(cx);
 4071        let project_path = project_item.project_path(cx);
 4072
 4073        let mut item = None;
 4074        if let Some(entry_id) = entry_id {
 4075            item = pane.read(cx).item_for_entry(entry_id, cx);
 4076        }
 4077        if item.is_none()
 4078            && let Some(project_path) = project_path
 4079        {
 4080            item = pane.read(cx).item_for_path(project_path, cx);
 4081        }
 4082
 4083        item.and_then(|item| item.downcast::<T>())
 4084    }
 4085
 4086    pub fn is_project_item_open<T>(
 4087        &self,
 4088        pane: &Entity<Pane>,
 4089        project_item: &Entity<T::Item>,
 4090        cx: &App,
 4091    ) -> bool
 4092    where
 4093        T: ProjectItem,
 4094    {
 4095        self.find_project_item::<T>(pane, project_item, cx)
 4096            .is_some()
 4097    }
 4098
 4099    pub fn open_project_item<T>(
 4100        &mut self,
 4101        pane: Entity<Pane>,
 4102        project_item: Entity<T::Item>,
 4103        activate_pane: bool,
 4104        focus_item: bool,
 4105        keep_old_preview: bool,
 4106        allow_new_preview: bool,
 4107        window: &mut Window,
 4108        cx: &mut Context<Self>,
 4109    ) -> Entity<T>
 4110    where
 4111        T: ProjectItem,
 4112    {
 4113        let old_item_id = pane.read(cx).active_item().map(|item| item.item_id());
 4114
 4115        if let Some(item) = self.find_project_item(&pane, &project_item, cx) {
 4116            if !keep_old_preview
 4117                && let Some(old_id) = old_item_id
 4118                && old_id != item.item_id()
 4119            {
 4120                // switching to a different item, so unpreview old active item
 4121                pane.update(cx, |pane, _| {
 4122                    pane.unpreview_item_if_preview(old_id);
 4123                });
 4124            }
 4125
 4126            self.activate_item(&item, activate_pane, focus_item, window, cx);
 4127            if !allow_new_preview {
 4128                pane.update(cx, |pane, _| {
 4129                    pane.unpreview_item_if_preview(item.item_id());
 4130                });
 4131            }
 4132            return item;
 4133        }
 4134
 4135        let item = pane.update(cx, |pane, cx| {
 4136            cx.new(|cx| {
 4137                T::for_project_item(self.project().clone(), Some(pane), project_item, window, cx)
 4138            })
 4139        });
 4140        let mut destination_index = None;
 4141        pane.update(cx, |pane, cx| {
 4142            if !keep_old_preview && let Some(old_id) = old_item_id {
 4143                pane.unpreview_item_if_preview(old_id);
 4144            }
 4145            if allow_new_preview {
 4146                destination_index = pane.replace_preview_item_id(item.item_id(), window, cx);
 4147            }
 4148        });
 4149
 4150        self.add_item(
 4151            pane,
 4152            Box::new(item.clone()),
 4153            destination_index,
 4154            activate_pane,
 4155            focus_item,
 4156            window,
 4157            cx,
 4158        );
 4159        item
 4160    }
 4161
 4162    pub fn open_shared_screen(
 4163        &mut self,
 4164        peer_id: PeerId,
 4165        window: &mut Window,
 4166        cx: &mut Context<Self>,
 4167    ) {
 4168        if let Some(shared_screen) =
 4169            self.shared_screen_for_peer(peer_id, &self.active_pane, window, cx)
 4170        {
 4171            self.active_pane.update(cx, |pane, cx| {
 4172                pane.add_item(Box::new(shared_screen), false, true, None, window, cx)
 4173            });
 4174        }
 4175    }
 4176
 4177    pub fn activate_item(
 4178        &mut self,
 4179        item: &dyn ItemHandle,
 4180        activate_pane: bool,
 4181        focus_item: bool,
 4182        window: &mut Window,
 4183        cx: &mut App,
 4184    ) -> bool {
 4185        let result = self.panes.iter().find_map(|pane| {
 4186            pane.read(cx)
 4187                .index_for_item(item)
 4188                .map(|ix| (pane.clone(), ix))
 4189        });
 4190        if let Some((pane, ix)) = result {
 4191            pane.update(cx, |pane, cx| {
 4192                pane.activate_item(ix, activate_pane, focus_item, window, cx)
 4193            });
 4194            true
 4195        } else {
 4196            false
 4197        }
 4198    }
 4199
 4200    fn activate_pane_at_index(
 4201        &mut self,
 4202        action: &ActivatePane,
 4203        window: &mut Window,
 4204        cx: &mut Context<Self>,
 4205    ) {
 4206        let panes = self.center.panes();
 4207        if let Some(pane) = panes.get(action.0).map(|p| (*p).clone()) {
 4208            window.focus(&pane.focus_handle(cx), cx);
 4209        } else {
 4210            self.split_and_clone(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4211                .detach();
 4212        }
 4213    }
 4214
 4215    fn move_item_to_pane_at_index(
 4216        &mut self,
 4217        action: &MoveItemToPane,
 4218        window: &mut Window,
 4219        cx: &mut Context<Self>,
 4220    ) {
 4221        let panes = self.center.panes();
 4222        let destination = match panes.get(action.destination) {
 4223            Some(&destination) => destination.clone(),
 4224            None => {
 4225                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4226                    return;
 4227                }
 4228                let direction = SplitDirection::Right;
 4229                let split_off_pane = self
 4230                    .find_pane_in_direction(direction, cx)
 4231                    .unwrap_or_else(|| self.active_pane.clone());
 4232                let new_pane = self.add_pane(window, cx);
 4233                if self
 4234                    .center
 4235                    .split(&split_off_pane, &new_pane, direction, cx)
 4236                    .log_err()
 4237                    .is_none()
 4238                {
 4239                    return;
 4240                };
 4241                new_pane
 4242            }
 4243        };
 4244
 4245        if action.clone {
 4246            if self
 4247                .active_pane
 4248                .read(cx)
 4249                .active_item()
 4250                .is_some_and(|item| item.can_split(cx))
 4251            {
 4252                clone_active_item(
 4253                    self.database_id(),
 4254                    &self.active_pane,
 4255                    &destination,
 4256                    action.focus,
 4257                    window,
 4258                    cx,
 4259                );
 4260                return;
 4261            }
 4262        }
 4263        move_active_item(
 4264            &self.active_pane,
 4265            &destination,
 4266            action.focus,
 4267            true,
 4268            window,
 4269            cx,
 4270        )
 4271    }
 4272
 4273    pub fn activate_next_pane(&mut self, window: &mut Window, cx: &mut App) {
 4274        let panes = self.center.panes();
 4275        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4276            let next_ix = (ix + 1) % panes.len();
 4277            let next_pane = panes[next_ix].clone();
 4278            window.focus(&next_pane.focus_handle(cx), cx);
 4279        }
 4280    }
 4281
 4282    pub fn activate_previous_pane(&mut self, window: &mut Window, cx: &mut App) {
 4283        let panes = self.center.panes();
 4284        if let Some(ix) = panes.iter().position(|pane| **pane == self.active_pane) {
 4285            let prev_ix = cmp::min(ix.wrapping_sub(1), panes.len() - 1);
 4286            let prev_pane = panes[prev_ix].clone();
 4287            window.focus(&prev_pane.focus_handle(cx), cx);
 4288        }
 4289    }
 4290
 4291    pub fn activate_pane_in_direction(
 4292        &mut self,
 4293        direction: SplitDirection,
 4294        window: &mut Window,
 4295        cx: &mut App,
 4296    ) {
 4297        use ActivateInDirectionTarget as Target;
 4298        enum Origin {
 4299            LeftDock,
 4300            RightDock,
 4301            BottomDock,
 4302            Center,
 4303        }
 4304
 4305        let origin: Origin = [
 4306            (&self.left_dock, Origin::LeftDock),
 4307            (&self.right_dock, Origin::RightDock),
 4308            (&self.bottom_dock, Origin::BottomDock),
 4309        ]
 4310        .into_iter()
 4311        .find_map(|(dock, origin)| {
 4312            if dock.focus_handle(cx).contains_focused(window, cx) && dock.read(cx).is_open() {
 4313                Some(origin)
 4314            } else {
 4315                None
 4316            }
 4317        })
 4318        .unwrap_or(Origin::Center);
 4319
 4320        let get_last_active_pane = || {
 4321            let pane = self
 4322                .last_active_center_pane
 4323                .clone()
 4324                .unwrap_or_else(|| {
 4325                    self.panes
 4326                        .first()
 4327                        .expect("There must be an active pane")
 4328                        .downgrade()
 4329                })
 4330                .upgrade()?;
 4331            (pane.read(cx).items_len() != 0).then_some(pane)
 4332        };
 4333
 4334        let try_dock =
 4335            |dock: &Entity<Dock>| dock.read(cx).is_open().then(|| Target::Dock(dock.clone()));
 4336
 4337        let target = match (origin, direction) {
 4338            // We're in the center, so we first try to go to a different pane,
 4339            // otherwise try to go to a dock.
 4340            (Origin::Center, direction) => {
 4341                if let Some(pane) = self.find_pane_in_direction(direction, cx) {
 4342                    Some(Target::Pane(pane))
 4343                } else {
 4344                    match direction {
 4345                        SplitDirection::Up => None,
 4346                        SplitDirection::Down => try_dock(&self.bottom_dock),
 4347                        SplitDirection::Left => try_dock(&self.left_dock),
 4348                        SplitDirection::Right => try_dock(&self.right_dock),
 4349                    }
 4350                }
 4351            }
 4352
 4353            (Origin::LeftDock, SplitDirection::Right) => {
 4354                if let Some(last_active_pane) = get_last_active_pane() {
 4355                    Some(Target::Pane(last_active_pane))
 4356                } else {
 4357                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.right_dock))
 4358                }
 4359            }
 4360
 4361            (Origin::LeftDock, SplitDirection::Down)
 4362            | (Origin::RightDock, SplitDirection::Down) => try_dock(&self.bottom_dock),
 4363
 4364            (Origin::BottomDock, SplitDirection::Up) => get_last_active_pane().map(Target::Pane),
 4365            (Origin::BottomDock, SplitDirection::Left) => try_dock(&self.left_dock),
 4366            (Origin::BottomDock, SplitDirection::Right) => try_dock(&self.right_dock),
 4367
 4368            (Origin::RightDock, SplitDirection::Left) => {
 4369                if let Some(last_active_pane) = get_last_active_pane() {
 4370                    Some(Target::Pane(last_active_pane))
 4371                } else {
 4372                    try_dock(&self.bottom_dock).or_else(|| try_dock(&self.left_dock))
 4373                }
 4374            }
 4375
 4376            _ => None,
 4377        };
 4378
 4379        match target {
 4380            Some(ActivateInDirectionTarget::Pane(pane)) => {
 4381                let pane = pane.read(cx);
 4382                if let Some(item) = pane.active_item() {
 4383                    item.item_focus_handle(cx).focus(window, cx);
 4384                } else {
 4385                    log::error!(
 4386                        "Could not find a focus target when in switching focus in {direction} direction for a pane",
 4387                    );
 4388                }
 4389            }
 4390            Some(ActivateInDirectionTarget::Dock(dock)) => {
 4391                // Defer this to avoid a panic when the dock's active panel is already on the stack.
 4392                window.defer(cx, move |window, cx| {
 4393                    let dock = dock.read(cx);
 4394                    if let Some(panel) = dock.active_panel() {
 4395                        panel.panel_focus_handle(cx).focus(window, cx);
 4396                    } else {
 4397                        log::error!("Could not find a focus target when in switching focus in {direction} direction for a {:?} dock", dock.position());
 4398                    }
 4399                })
 4400            }
 4401            None => {}
 4402        }
 4403    }
 4404
 4405    pub fn move_item_to_pane_in_direction(
 4406        &mut self,
 4407        action: &MoveItemToPaneInDirection,
 4408        window: &mut Window,
 4409        cx: &mut Context<Self>,
 4410    ) {
 4411        let destination = match self.find_pane_in_direction(action.direction, cx) {
 4412            Some(destination) => destination,
 4413            None => {
 4414                if !action.clone && self.active_pane.read(cx).items_len() < 2 {
 4415                    return;
 4416                }
 4417                let new_pane = self.add_pane(window, cx);
 4418                if self
 4419                    .center
 4420                    .split(&self.active_pane, &new_pane, action.direction, cx)
 4421                    .log_err()
 4422                    .is_none()
 4423                {
 4424                    return;
 4425                };
 4426                new_pane
 4427            }
 4428        };
 4429
 4430        if action.clone {
 4431            if self
 4432                .active_pane
 4433                .read(cx)
 4434                .active_item()
 4435                .is_some_and(|item| item.can_split(cx))
 4436            {
 4437                clone_active_item(
 4438                    self.database_id(),
 4439                    &self.active_pane,
 4440                    &destination,
 4441                    action.focus,
 4442                    window,
 4443                    cx,
 4444                );
 4445                return;
 4446            }
 4447        }
 4448        move_active_item(
 4449            &self.active_pane,
 4450            &destination,
 4451            action.focus,
 4452            true,
 4453            window,
 4454            cx,
 4455        );
 4456    }
 4457
 4458    pub fn bounding_box_for_pane(&self, pane: &Entity<Pane>) -> Option<Bounds<Pixels>> {
 4459        self.center.bounding_box_for_pane(pane)
 4460    }
 4461
 4462    pub fn find_pane_in_direction(
 4463        &mut self,
 4464        direction: SplitDirection,
 4465        cx: &App,
 4466    ) -> Option<Entity<Pane>> {
 4467        self.center
 4468            .find_pane_in_direction(&self.active_pane, direction, cx)
 4469            .cloned()
 4470    }
 4471
 4472    pub fn swap_pane_in_direction(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4473        if let Some(to) = self.find_pane_in_direction(direction, cx) {
 4474            self.center.swap(&self.active_pane, &to, cx);
 4475            cx.notify();
 4476        }
 4477    }
 4478
 4479    pub fn move_pane_to_border(&mut self, direction: SplitDirection, cx: &mut Context<Self>) {
 4480        if self
 4481            .center
 4482            .move_to_border(&self.active_pane, direction, cx)
 4483            .unwrap()
 4484        {
 4485            cx.notify();
 4486        }
 4487    }
 4488
 4489    pub fn resize_pane(
 4490        &mut self,
 4491        axis: gpui::Axis,
 4492        amount: Pixels,
 4493        window: &mut Window,
 4494        cx: &mut Context<Self>,
 4495    ) {
 4496        let docks = self.all_docks();
 4497        let active_dock = docks
 4498            .into_iter()
 4499            .find(|dock| dock.focus_handle(cx).contains_focused(window, cx));
 4500
 4501        if let Some(dock) = active_dock {
 4502            let Some(panel_size) = dock.read(cx).active_panel_size(window, cx) else {
 4503                return;
 4504            };
 4505            match dock.read(cx).position() {
 4506                DockPosition::Left => self.resize_left_dock(panel_size + amount, window, cx),
 4507                DockPosition::Bottom => self.resize_bottom_dock(panel_size + amount, window, cx),
 4508                DockPosition::Right => self.resize_right_dock(panel_size + amount, window, cx),
 4509            }
 4510        } else {
 4511            self.center
 4512                .resize(&self.active_pane, axis, amount, &self.bounds, cx);
 4513        }
 4514        cx.notify();
 4515    }
 4516
 4517    pub fn reset_pane_sizes(&mut self, cx: &mut Context<Self>) {
 4518        self.center.reset_pane_sizes(cx);
 4519        cx.notify();
 4520    }
 4521
 4522    fn handle_pane_focused(
 4523        &mut self,
 4524        pane: Entity<Pane>,
 4525        window: &mut Window,
 4526        cx: &mut Context<Self>,
 4527    ) {
 4528        // This is explicitly hoisted out of the following check for pane identity as
 4529        // terminal panel panes are not registered as a center panes.
 4530        self.status_bar.update(cx, |status_bar, cx| {
 4531            status_bar.set_active_pane(&pane, window, cx);
 4532        });
 4533        if self.active_pane != pane {
 4534            self.set_active_pane(&pane, window, cx);
 4535        }
 4536
 4537        if self.last_active_center_pane.is_none() {
 4538            self.last_active_center_pane = Some(pane.downgrade());
 4539        }
 4540
 4541        // If this pane is in a dock, preserve that dock when dismissing zoomed items.
 4542        // This prevents the dock from closing when focus events fire during window activation.
 4543        // We also preserve any dock whose active panel itself has focus — this covers
 4544        // panels like AgentPanel that don't implement `pane()` but can still be zoomed.
 4545        let dock_to_preserve = self.all_docks().iter().find_map(|dock| {
 4546            let dock_read = dock.read(cx);
 4547            if let Some(panel) = dock_read.active_panel() {
 4548                if panel.pane(cx).is_some_and(|dock_pane| dock_pane == pane)
 4549                    || panel.panel_focus_handle(cx).contains_focused(window, cx)
 4550                {
 4551                    return Some(dock_read.position());
 4552                }
 4553            }
 4554            None
 4555        });
 4556
 4557        self.dismiss_zoomed_items_to_reveal(dock_to_preserve, window, cx);
 4558        if pane.read(cx).is_zoomed() {
 4559            self.zoomed = Some(pane.downgrade().into());
 4560        } else {
 4561            self.zoomed = None;
 4562        }
 4563        self.zoomed_position = None;
 4564        cx.emit(Event::ZoomChanged);
 4565        self.update_active_view_for_followers(window, cx);
 4566        pane.update(cx, |pane, _| {
 4567            pane.track_alternate_file_items();
 4568        });
 4569
 4570        cx.notify();
 4571    }
 4572
 4573    fn set_active_pane(
 4574        &mut self,
 4575        pane: &Entity<Pane>,
 4576        window: &mut Window,
 4577        cx: &mut Context<Self>,
 4578    ) {
 4579        self.active_pane = pane.clone();
 4580        self.active_item_path_changed(true, window, cx);
 4581        self.last_active_center_pane = Some(pane.downgrade());
 4582    }
 4583
 4584    fn handle_panel_focused(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4585        self.update_active_view_for_followers(window, cx);
 4586    }
 4587
 4588    fn handle_pane_event(
 4589        &mut self,
 4590        pane: &Entity<Pane>,
 4591        event: &pane::Event,
 4592        window: &mut Window,
 4593        cx: &mut Context<Self>,
 4594    ) {
 4595        let mut serialize_workspace = true;
 4596        match event {
 4597            pane::Event::AddItem { item } => {
 4598                item.added_to_pane(self, pane.clone(), window, cx);
 4599                cx.emit(Event::ItemAdded {
 4600                    item: item.boxed_clone(),
 4601                });
 4602            }
 4603            pane::Event::Split { direction, mode } => {
 4604                match mode {
 4605                    SplitMode::ClonePane => {
 4606                        self.split_and_clone(pane.clone(), *direction, window, cx)
 4607                            .detach();
 4608                    }
 4609                    SplitMode::EmptyPane => {
 4610                        self.split_pane(pane.clone(), *direction, window, cx);
 4611                    }
 4612                    SplitMode::MovePane => {
 4613                        self.split_and_move(pane.clone(), *direction, window, cx);
 4614                    }
 4615                };
 4616            }
 4617            pane::Event::JoinIntoNext => {
 4618                self.join_pane_into_next(pane.clone(), window, cx);
 4619            }
 4620            pane::Event::JoinAll => {
 4621                self.join_all_panes(window, cx);
 4622            }
 4623            pane::Event::Remove { focus_on_pane } => {
 4624                self.remove_pane(pane.clone(), focus_on_pane.clone(), window, cx);
 4625            }
 4626            pane::Event::ActivateItem {
 4627                local,
 4628                focus_changed,
 4629            } => {
 4630                window.invalidate_character_coordinates();
 4631
 4632                pane.update(cx, |pane, _| {
 4633                    pane.track_alternate_file_items();
 4634                });
 4635                if *local {
 4636                    self.unfollow_in_pane(pane, window, cx);
 4637                }
 4638                serialize_workspace = *focus_changed || pane != self.active_pane();
 4639                if pane == self.active_pane() {
 4640                    self.active_item_path_changed(*focus_changed, window, cx);
 4641                    self.update_active_view_for_followers(window, cx);
 4642                } else if *local {
 4643                    self.set_active_pane(pane, window, cx);
 4644                }
 4645            }
 4646            pane::Event::UserSavedItem { item, save_intent } => {
 4647                cx.emit(Event::UserSavedItem {
 4648                    pane: pane.downgrade(),
 4649                    item: item.boxed_clone(),
 4650                    save_intent: *save_intent,
 4651                });
 4652                serialize_workspace = false;
 4653            }
 4654            pane::Event::ChangeItemTitle => {
 4655                if *pane == self.active_pane {
 4656                    self.active_item_path_changed(false, window, cx);
 4657                }
 4658                serialize_workspace = false;
 4659            }
 4660            pane::Event::RemovedItem { item } => {
 4661                cx.emit(Event::ActiveItemChanged);
 4662                self.update_window_edited(window, cx);
 4663                if let hash_map::Entry::Occupied(entry) = self.panes_by_item.entry(item.item_id())
 4664                    && entry.get().entity_id() == pane.entity_id()
 4665                {
 4666                    entry.remove();
 4667                }
 4668                cx.emit(Event::ItemRemoved {
 4669                    item_id: item.item_id(),
 4670                });
 4671            }
 4672            pane::Event::Focus => {
 4673                window.invalidate_character_coordinates();
 4674                self.handle_pane_focused(pane.clone(), window, cx);
 4675            }
 4676            pane::Event::ZoomIn => {
 4677                if *pane == self.active_pane {
 4678                    pane.update(cx, |pane, cx| pane.set_zoomed(true, cx));
 4679                    if pane.read(cx).has_focus(window, cx) {
 4680                        self.zoomed = Some(pane.downgrade().into());
 4681                        self.zoomed_position = None;
 4682                        cx.emit(Event::ZoomChanged);
 4683                    }
 4684                    cx.notify();
 4685                }
 4686            }
 4687            pane::Event::ZoomOut => {
 4688                pane.update(cx, |pane, cx| pane.set_zoomed(false, cx));
 4689                if self.zoomed_position.is_none() {
 4690                    self.zoomed = None;
 4691                    cx.emit(Event::ZoomChanged);
 4692                }
 4693                cx.notify();
 4694            }
 4695            pane::Event::ItemPinned | pane::Event::ItemUnpinned => {}
 4696        }
 4697
 4698        if serialize_workspace {
 4699            self.serialize_workspace(window, cx);
 4700        }
 4701    }
 4702
 4703    pub fn unfollow_in_pane(
 4704        &mut self,
 4705        pane: &Entity<Pane>,
 4706        window: &mut Window,
 4707        cx: &mut Context<Workspace>,
 4708    ) -> Option<CollaboratorId> {
 4709        let leader_id = self.leader_for_pane(pane)?;
 4710        self.unfollow(leader_id, window, cx);
 4711        Some(leader_id)
 4712    }
 4713
 4714    pub fn split_pane(
 4715        &mut self,
 4716        pane_to_split: Entity<Pane>,
 4717        split_direction: SplitDirection,
 4718        window: &mut Window,
 4719        cx: &mut Context<Self>,
 4720    ) -> Entity<Pane> {
 4721        let new_pane = self.add_pane(window, cx);
 4722        self.center
 4723            .split(&pane_to_split, &new_pane, split_direction, cx)
 4724            .unwrap();
 4725        cx.notify();
 4726        new_pane
 4727    }
 4728
 4729    pub fn split_and_move(
 4730        &mut self,
 4731        pane: Entity<Pane>,
 4732        direction: SplitDirection,
 4733        window: &mut Window,
 4734        cx: &mut Context<Self>,
 4735    ) {
 4736        let Some(item) = pane.update(cx, |pane, cx| pane.take_active_item(window, cx)) else {
 4737            return;
 4738        };
 4739        let new_pane = self.add_pane(window, cx);
 4740        new_pane.update(cx, |pane, cx| {
 4741            pane.add_item(item, true, true, None, window, cx)
 4742        });
 4743        self.center.split(&pane, &new_pane, direction, cx).unwrap();
 4744        cx.notify();
 4745    }
 4746
 4747    pub fn split_and_clone(
 4748        &mut self,
 4749        pane: Entity<Pane>,
 4750        direction: SplitDirection,
 4751        window: &mut Window,
 4752        cx: &mut Context<Self>,
 4753    ) -> Task<Option<Entity<Pane>>> {
 4754        let Some(item) = pane.read(cx).active_item() else {
 4755            return Task::ready(None);
 4756        };
 4757        if !item.can_split(cx) {
 4758            return Task::ready(None);
 4759        }
 4760        let task = item.clone_on_split(self.database_id(), window, cx);
 4761        cx.spawn_in(window, async move |this, cx| {
 4762            if let Some(clone) = task.await {
 4763                this.update_in(cx, |this, window, cx| {
 4764                    let new_pane = this.add_pane(window, cx);
 4765                    let nav_history = pane.read(cx).fork_nav_history();
 4766                    new_pane.update(cx, |pane, cx| {
 4767                        pane.set_nav_history(nav_history, cx);
 4768                        pane.add_item(clone, true, true, None, window, cx)
 4769                    });
 4770                    this.center.split(&pane, &new_pane, direction, cx).unwrap();
 4771                    cx.notify();
 4772                    new_pane
 4773                })
 4774                .ok()
 4775            } else {
 4776                None
 4777            }
 4778        })
 4779    }
 4780
 4781    pub fn join_all_panes(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 4782        let active_item = self.active_pane.read(cx).active_item();
 4783        for pane in &self.panes {
 4784            join_pane_into_active(&self.active_pane, pane, window, cx);
 4785        }
 4786        if let Some(active_item) = active_item {
 4787            self.activate_item(active_item.as_ref(), true, true, window, cx);
 4788        }
 4789        cx.notify();
 4790    }
 4791
 4792    pub fn join_pane_into_next(
 4793        &mut self,
 4794        pane: Entity<Pane>,
 4795        window: &mut Window,
 4796        cx: &mut Context<Self>,
 4797    ) {
 4798        let next_pane = self
 4799            .find_pane_in_direction(SplitDirection::Right, cx)
 4800            .or_else(|| self.find_pane_in_direction(SplitDirection::Down, cx))
 4801            .or_else(|| self.find_pane_in_direction(SplitDirection::Left, cx))
 4802            .or_else(|| self.find_pane_in_direction(SplitDirection::Up, cx));
 4803        let Some(next_pane) = next_pane else {
 4804            return;
 4805        };
 4806        move_all_items(&pane, &next_pane, window, cx);
 4807        cx.notify();
 4808    }
 4809
 4810    fn remove_pane(
 4811        &mut self,
 4812        pane: Entity<Pane>,
 4813        focus_on: Option<Entity<Pane>>,
 4814        window: &mut Window,
 4815        cx: &mut Context<Self>,
 4816    ) {
 4817        if self.center.remove(&pane, cx).unwrap() {
 4818            self.force_remove_pane(&pane, &focus_on, window, cx);
 4819            self.unfollow_in_pane(&pane, window, cx);
 4820            self.last_leaders_by_pane.remove(&pane.downgrade());
 4821            for removed_item in pane.read(cx).items() {
 4822                self.panes_by_item.remove(&removed_item.item_id());
 4823            }
 4824
 4825            cx.notify();
 4826        } else {
 4827            self.active_item_path_changed(true, window, cx);
 4828        }
 4829        cx.emit(Event::PaneRemoved);
 4830    }
 4831
 4832    pub fn panes_mut(&mut self) -> &mut [Entity<Pane>] {
 4833        &mut self.panes
 4834    }
 4835
 4836    pub fn panes(&self) -> &[Entity<Pane>] {
 4837        &self.panes
 4838    }
 4839
 4840    pub fn active_pane(&self) -> &Entity<Pane> {
 4841        &self.active_pane
 4842    }
 4843
 4844    pub fn focused_pane(&self, window: &Window, cx: &App) -> Entity<Pane> {
 4845        for dock in self.all_docks() {
 4846            if dock.focus_handle(cx).contains_focused(window, cx)
 4847                && let Some(pane) = dock
 4848                    .read(cx)
 4849                    .active_panel()
 4850                    .and_then(|panel| panel.pane(cx))
 4851            {
 4852                return pane;
 4853            }
 4854        }
 4855        self.active_pane().clone()
 4856    }
 4857
 4858    pub fn adjacent_pane(&mut self, window: &mut Window, cx: &mut Context<Self>) -> Entity<Pane> {
 4859        self.find_pane_in_direction(SplitDirection::Right, cx)
 4860            .unwrap_or_else(|| {
 4861                self.split_pane(self.active_pane.clone(), SplitDirection::Right, window, cx)
 4862            })
 4863    }
 4864
 4865    pub fn pane_for(&self, handle: &dyn ItemHandle) -> Option<Entity<Pane>> {
 4866        let weak_pane = self.panes_by_item.get(&handle.item_id())?;
 4867        weak_pane.upgrade()
 4868    }
 4869
 4870    fn collaborator_left(&mut self, peer_id: PeerId, window: &mut Window, cx: &mut Context<Self>) {
 4871        self.follower_states.retain(|leader_id, state| {
 4872            if *leader_id == CollaboratorId::PeerId(peer_id) {
 4873                for item in state.items_by_leader_view_id.values() {
 4874                    item.view.set_leader_id(None, window, cx);
 4875                }
 4876                false
 4877            } else {
 4878                true
 4879            }
 4880        });
 4881        cx.notify();
 4882    }
 4883
 4884    pub fn start_following(
 4885        &mut self,
 4886        leader_id: impl Into<CollaboratorId>,
 4887        window: &mut Window,
 4888        cx: &mut Context<Self>,
 4889    ) -> Option<Task<Result<()>>> {
 4890        let leader_id = leader_id.into();
 4891        let pane = self.active_pane().clone();
 4892
 4893        self.last_leaders_by_pane
 4894            .insert(pane.downgrade(), leader_id);
 4895        self.unfollow(leader_id, window, cx);
 4896        self.unfollow_in_pane(&pane, window, cx);
 4897        self.follower_states.insert(
 4898            leader_id,
 4899            FollowerState {
 4900                center_pane: pane.clone(),
 4901                dock_pane: None,
 4902                active_view_id: None,
 4903                items_by_leader_view_id: Default::default(),
 4904            },
 4905        );
 4906        cx.notify();
 4907
 4908        match leader_id {
 4909            CollaboratorId::PeerId(leader_peer_id) => {
 4910                let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 4911                let project_id = self.project.read(cx).remote_id();
 4912                let request = self.app_state.client.request(proto::Follow {
 4913                    room_id,
 4914                    project_id,
 4915                    leader_id: Some(leader_peer_id),
 4916                });
 4917
 4918                Some(cx.spawn_in(window, async move |this, cx| {
 4919                    let response = request.await?;
 4920                    this.update(cx, |this, _| {
 4921                        let state = this
 4922                            .follower_states
 4923                            .get_mut(&leader_id)
 4924                            .context("following interrupted")?;
 4925                        state.active_view_id = response
 4926                            .active_view
 4927                            .as_ref()
 4928                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 4929                        anyhow::Ok(())
 4930                    })??;
 4931                    if let Some(view) = response.active_view {
 4932                        Self::add_view_from_leader(this.clone(), leader_peer_id, &view, cx).await?;
 4933                    }
 4934                    this.update_in(cx, |this, window, cx| {
 4935                        this.leader_updated(leader_id, window, cx)
 4936                    })?;
 4937                    Ok(())
 4938                }))
 4939            }
 4940            CollaboratorId::Agent => {
 4941                self.leader_updated(leader_id, window, cx)?;
 4942                Some(Task::ready(Ok(())))
 4943            }
 4944        }
 4945    }
 4946
 4947    pub fn follow_next_collaborator(
 4948        &mut self,
 4949        _: &FollowNextCollaborator,
 4950        window: &mut Window,
 4951        cx: &mut Context<Self>,
 4952    ) {
 4953        let collaborators = self.project.read(cx).collaborators();
 4954        let next_leader_id = if let Some(leader_id) = self.leader_for_pane(&self.active_pane) {
 4955            let mut collaborators = collaborators.keys().copied();
 4956            for peer_id in collaborators.by_ref() {
 4957                if CollaboratorId::PeerId(peer_id) == leader_id {
 4958                    break;
 4959                }
 4960            }
 4961            collaborators.next().map(CollaboratorId::PeerId)
 4962        } else if let Some(last_leader_id) =
 4963            self.last_leaders_by_pane.get(&self.active_pane.downgrade())
 4964        {
 4965            match last_leader_id {
 4966                CollaboratorId::PeerId(peer_id) => {
 4967                    if collaborators.contains_key(peer_id) {
 4968                        Some(*last_leader_id)
 4969                    } else {
 4970                        None
 4971                    }
 4972                }
 4973                CollaboratorId::Agent => Some(CollaboratorId::Agent),
 4974            }
 4975        } else {
 4976            None
 4977        };
 4978
 4979        let pane = self.active_pane.clone();
 4980        let Some(leader_id) = next_leader_id.or_else(|| {
 4981            Some(CollaboratorId::PeerId(
 4982                collaborators.keys().copied().next()?,
 4983            ))
 4984        }) else {
 4985            return;
 4986        };
 4987        if self.unfollow_in_pane(&pane, window, cx) == Some(leader_id) {
 4988            return;
 4989        }
 4990        if let Some(task) = self.start_following(leader_id, window, cx) {
 4991            task.detach_and_log_err(cx)
 4992        }
 4993    }
 4994
 4995    pub fn follow(
 4996        &mut self,
 4997        leader_id: impl Into<CollaboratorId>,
 4998        window: &mut Window,
 4999        cx: &mut Context<Self>,
 5000    ) {
 5001        let leader_id = leader_id.into();
 5002
 5003        if let CollaboratorId::PeerId(peer_id) = leader_id {
 5004            let Some(room) = ActiveCall::global(cx).read(cx).room() else {
 5005                return;
 5006            };
 5007            let room = room.read(cx);
 5008            let Some(remote_participant) = room.remote_participant_for_peer_id(peer_id) else {
 5009                return;
 5010            };
 5011
 5012            let project = self.project.read(cx);
 5013
 5014            let other_project_id = match remote_participant.location {
 5015                call::ParticipantLocation::External => None,
 5016                call::ParticipantLocation::UnsharedProject => None,
 5017                call::ParticipantLocation::SharedProject { project_id } => {
 5018                    if Some(project_id) == project.remote_id() {
 5019                        None
 5020                    } else {
 5021                        Some(project_id)
 5022                    }
 5023                }
 5024            };
 5025
 5026            // if they are active in another project, follow there.
 5027            if let Some(project_id) = other_project_id {
 5028                let app_state = self.app_state.clone();
 5029                crate::join_in_room_project(project_id, remote_participant.user.id, app_state, cx)
 5030                    .detach_and_log_err(cx);
 5031            }
 5032        }
 5033
 5034        // if you're already following, find the right pane and focus it.
 5035        if let Some(follower_state) = self.follower_states.get(&leader_id) {
 5036            window.focus(&follower_state.pane().focus_handle(cx), cx);
 5037
 5038            return;
 5039        }
 5040
 5041        // Otherwise, follow.
 5042        if let Some(task) = self.start_following(leader_id, window, cx) {
 5043            task.detach_and_log_err(cx)
 5044        }
 5045    }
 5046
 5047    pub fn unfollow(
 5048        &mut self,
 5049        leader_id: impl Into<CollaboratorId>,
 5050        window: &mut Window,
 5051        cx: &mut Context<Self>,
 5052    ) -> Option<()> {
 5053        cx.notify();
 5054
 5055        let leader_id = leader_id.into();
 5056        let state = self.follower_states.remove(&leader_id)?;
 5057        for (_, item) in state.items_by_leader_view_id {
 5058            item.view.set_leader_id(None, window, cx);
 5059        }
 5060
 5061        if let CollaboratorId::PeerId(leader_peer_id) = leader_id {
 5062            let project_id = self.project.read(cx).remote_id();
 5063            let room_id = self.active_call()?.read(cx).room()?.read(cx).id();
 5064            self.app_state
 5065                .client
 5066                .send(proto::Unfollow {
 5067                    room_id,
 5068                    project_id,
 5069                    leader_id: Some(leader_peer_id),
 5070                })
 5071                .log_err();
 5072        }
 5073
 5074        Some(())
 5075    }
 5076
 5077    pub fn is_being_followed(&self, id: impl Into<CollaboratorId>) -> bool {
 5078        self.follower_states.contains_key(&id.into())
 5079    }
 5080
 5081    fn active_item_path_changed(
 5082        &mut self,
 5083        focus_changed: bool,
 5084        window: &mut Window,
 5085        cx: &mut Context<Self>,
 5086    ) {
 5087        cx.emit(Event::ActiveItemChanged);
 5088        let active_entry = self.active_project_path(cx);
 5089        self.project.update(cx, |project, cx| {
 5090            project.set_active_path(active_entry.clone(), cx)
 5091        });
 5092
 5093        if focus_changed && let Some(project_path) = &active_entry {
 5094            let git_store_entity = self.project.read(cx).git_store().clone();
 5095            git_store_entity.update(cx, |git_store, cx| {
 5096                git_store.set_active_repo_for_path(project_path, cx);
 5097            });
 5098        }
 5099
 5100        self.update_window_title(window, cx);
 5101    }
 5102
 5103    fn update_window_title(&mut self, window: &mut Window, cx: &mut App) {
 5104        let project = self.project().read(cx);
 5105        let mut title = String::new();
 5106
 5107        for (i, worktree) in project.visible_worktrees(cx).enumerate() {
 5108            let name = {
 5109                let settings_location = SettingsLocation {
 5110                    worktree_id: worktree.read(cx).id(),
 5111                    path: RelPath::empty(),
 5112                };
 5113
 5114                let settings = WorktreeSettings::get(Some(settings_location), cx);
 5115                match &settings.project_name {
 5116                    Some(name) => name.as_str(),
 5117                    None => worktree.read(cx).root_name_str(),
 5118                }
 5119            };
 5120            if i > 0 {
 5121                title.push_str(", ");
 5122            }
 5123            title.push_str(name);
 5124        }
 5125
 5126        if title.is_empty() {
 5127            title = "empty project".to_string();
 5128        }
 5129
 5130        if let Some(path) = self.active_item(cx).and_then(|item| item.project_path(cx)) {
 5131            let filename = path.path.file_name().or_else(|| {
 5132                Some(
 5133                    project
 5134                        .worktree_for_id(path.worktree_id, cx)?
 5135                        .read(cx)
 5136                        .root_name_str(),
 5137                )
 5138            });
 5139
 5140            if let Some(filename) = filename {
 5141                title.push_str("");
 5142                title.push_str(filename.as_ref());
 5143            }
 5144        }
 5145
 5146        if project.is_via_collab() {
 5147            title.push_str("");
 5148        } else if project.is_shared() {
 5149            title.push_str("");
 5150        }
 5151
 5152        if let Some(last_title) = self.last_window_title.as_ref()
 5153            && &title == last_title
 5154        {
 5155            return;
 5156        }
 5157        window.set_window_title(&title);
 5158        SystemWindowTabController::update_tab_title(
 5159            cx,
 5160            window.window_handle().window_id(),
 5161            SharedString::from(&title),
 5162        );
 5163        self.last_window_title = Some(title);
 5164    }
 5165
 5166    fn update_window_edited(&mut self, window: &mut Window, cx: &mut App) {
 5167        let is_edited = !self.project.read(cx).is_disconnected(cx) && !self.dirty_items.is_empty();
 5168        if is_edited != self.window_edited {
 5169            self.window_edited = is_edited;
 5170            window.set_window_edited(self.window_edited)
 5171        }
 5172    }
 5173
 5174    fn update_item_dirty_state(
 5175        &mut self,
 5176        item: &dyn ItemHandle,
 5177        window: &mut Window,
 5178        cx: &mut App,
 5179    ) {
 5180        let is_dirty = item.is_dirty(cx);
 5181        let item_id = item.item_id();
 5182        let was_dirty = self.dirty_items.contains_key(&item_id);
 5183        if is_dirty == was_dirty {
 5184            return;
 5185        }
 5186        if was_dirty {
 5187            self.dirty_items.remove(&item_id);
 5188            self.update_window_edited(window, cx);
 5189            return;
 5190        }
 5191
 5192        let workspace = self.weak_handle();
 5193        let Some(window_handle) = window.window_handle().downcast::<MultiWorkspace>() else {
 5194            return;
 5195        };
 5196        let on_release_callback = Box::new(move |cx: &mut App| {
 5197            window_handle
 5198                .update(cx, |_, window, cx| {
 5199                    workspace
 5200                        .update(cx, |workspace, cx| {
 5201                            workspace.dirty_items.remove(&item_id);
 5202                            workspace.update_window_edited(window, cx)
 5203                        })
 5204                        .ok();
 5205                })
 5206                .ok();
 5207        });
 5208
 5209        let s = item.on_release(cx, on_release_callback);
 5210        self.dirty_items.insert(item_id, s);
 5211        self.update_window_edited(window, cx);
 5212    }
 5213
 5214    fn render_notifications(&self, _window: &mut Window, _cx: &mut Context<Self>) -> Option<Div> {
 5215        if self.notifications.is_empty() {
 5216            None
 5217        } else {
 5218            Some(
 5219                div()
 5220                    .absolute()
 5221                    .right_3()
 5222                    .bottom_3()
 5223                    .w_112()
 5224                    .h_full()
 5225                    .flex()
 5226                    .flex_col()
 5227                    .justify_end()
 5228                    .gap_2()
 5229                    .children(
 5230                        self.notifications
 5231                            .iter()
 5232                            .map(|(_, notification)| notification.clone().into_any()),
 5233                    ),
 5234            )
 5235        }
 5236    }
 5237
 5238    // RPC handlers
 5239
 5240    fn active_view_for_follower(
 5241        &self,
 5242        follower_project_id: Option<u64>,
 5243        window: &mut Window,
 5244        cx: &mut Context<Self>,
 5245    ) -> Option<proto::View> {
 5246        let (item, panel_id) = self.active_item_for_followers(window, cx);
 5247        let item = item?;
 5248        let leader_id = self
 5249            .pane_for(&*item)
 5250            .and_then(|pane| self.leader_for_pane(&pane));
 5251        let leader_peer_id = match leader_id {
 5252            Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5253            Some(CollaboratorId::Agent) | None => None,
 5254        };
 5255
 5256        let item_handle = item.to_followable_item_handle(cx)?;
 5257        let id = item_handle.remote_id(&self.app_state.client, window, cx)?;
 5258        let variant = item_handle.to_state_proto(window, cx)?;
 5259
 5260        if item_handle.is_project_item(window, cx)
 5261            && (follower_project_id.is_none()
 5262                || follower_project_id != self.project.read(cx).remote_id())
 5263        {
 5264            return None;
 5265        }
 5266
 5267        Some(proto::View {
 5268            id: id.to_proto(),
 5269            leader_id: leader_peer_id,
 5270            variant: Some(variant),
 5271            panel_id: panel_id.map(|id| id as i32),
 5272        })
 5273    }
 5274
 5275    fn handle_follow(
 5276        &mut self,
 5277        follower_project_id: Option<u64>,
 5278        window: &mut Window,
 5279        cx: &mut Context<Self>,
 5280    ) -> proto::FollowResponse {
 5281        let active_view = self.active_view_for_follower(follower_project_id, window, cx);
 5282
 5283        cx.notify();
 5284        proto::FollowResponse {
 5285            views: active_view.iter().cloned().collect(),
 5286            active_view,
 5287        }
 5288    }
 5289
 5290    fn handle_update_followers(
 5291        &mut self,
 5292        leader_id: PeerId,
 5293        message: proto::UpdateFollowers,
 5294        _window: &mut Window,
 5295        _cx: &mut Context<Self>,
 5296    ) {
 5297        self.leader_updates_tx
 5298            .unbounded_send((leader_id, message))
 5299            .ok();
 5300    }
 5301
 5302    async fn process_leader_update(
 5303        this: &WeakEntity<Self>,
 5304        leader_id: PeerId,
 5305        update: proto::UpdateFollowers,
 5306        cx: &mut AsyncWindowContext,
 5307    ) -> Result<()> {
 5308        match update.variant.context("invalid update")? {
 5309            proto::update_followers::Variant::CreateView(view) => {
 5310                let view_id = ViewId::from_proto(view.id.clone().context("invalid view id")?)?;
 5311                let should_add_view = this.update(cx, |this, _| {
 5312                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5313                        anyhow::Ok(!state.items_by_leader_view_id.contains_key(&view_id))
 5314                    } else {
 5315                        anyhow::Ok(false)
 5316                    }
 5317                })??;
 5318
 5319                if should_add_view {
 5320                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5321                }
 5322            }
 5323            proto::update_followers::Variant::UpdateActiveView(update_active_view) => {
 5324                let should_add_view = this.update(cx, |this, _| {
 5325                    if let Some(state) = this.follower_states.get_mut(&leader_id.into()) {
 5326                        state.active_view_id = update_active_view
 5327                            .view
 5328                            .as_ref()
 5329                            .and_then(|view| ViewId::from_proto(view.id.clone()?).ok());
 5330
 5331                        if state.active_view_id.is_some_and(|view_id| {
 5332                            !state.items_by_leader_view_id.contains_key(&view_id)
 5333                        }) {
 5334                            anyhow::Ok(true)
 5335                        } else {
 5336                            anyhow::Ok(false)
 5337                        }
 5338                    } else {
 5339                        anyhow::Ok(false)
 5340                    }
 5341                })??;
 5342
 5343                if should_add_view && let Some(view) = update_active_view.view {
 5344                    Self::add_view_from_leader(this.clone(), leader_id, &view, cx).await?
 5345                }
 5346            }
 5347            proto::update_followers::Variant::UpdateView(update_view) => {
 5348                let variant = update_view.variant.context("missing update view variant")?;
 5349                let id = update_view.id.context("missing update view id")?;
 5350                let mut tasks = Vec::new();
 5351                this.update_in(cx, |this, window, cx| {
 5352                    let project = this.project.clone();
 5353                    if let Some(state) = this.follower_states.get(&leader_id.into()) {
 5354                        let view_id = ViewId::from_proto(id.clone())?;
 5355                        if let Some(item) = state.items_by_leader_view_id.get(&view_id) {
 5356                            tasks.push(item.view.apply_update_proto(
 5357                                &project,
 5358                                variant.clone(),
 5359                                window,
 5360                                cx,
 5361                            ));
 5362                        }
 5363                    }
 5364                    anyhow::Ok(())
 5365                })??;
 5366                try_join_all(tasks).await.log_err();
 5367            }
 5368        }
 5369        this.update_in(cx, |this, window, cx| {
 5370            this.leader_updated(leader_id, window, cx)
 5371        })?;
 5372        Ok(())
 5373    }
 5374
 5375    async fn add_view_from_leader(
 5376        this: WeakEntity<Self>,
 5377        leader_id: PeerId,
 5378        view: &proto::View,
 5379        cx: &mut AsyncWindowContext,
 5380    ) -> Result<()> {
 5381        let this = this.upgrade().context("workspace dropped")?;
 5382
 5383        let Some(id) = view.id.clone() else {
 5384            anyhow::bail!("no id for view");
 5385        };
 5386        let id = ViewId::from_proto(id)?;
 5387        let panel_id = view.panel_id.and_then(proto::PanelId::from_i32);
 5388
 5389        let pane = this.update(cx, |this, _cx| {
 5390            let state = this
 5391                .follower_states
 5392                .get(&leader_id.into())
 5393                .context("stopped following")?;
 5394            anyhow::Ok(state.pane().clone())
 5395        })?;
 5396        let existing_item = pane.update_in(cx, |pane, window, cx| {
 5397            let client = this.read(cx).client().clone();
 5398            pane.items().find_map(|item| {
 5399                let item = item.to_followable_item_handle(cx)?;
 5400                if item.remote_id(&client, window, cx) == Some(id) {
 5401                    Some(item)
 5402                } else {
 5403                    None
 5404                }
 5405            })
 5406        })?;
 5407        let item = if let Some(existing_item) = existing_item {
 5408            existing_item
 5409        } else {
 5410            let variant = view.variant.clone();
 5411            anyhow::ensure!(variant.is_some(), "missing view variant");
 5412
 5413            let task = cx.update(|window, cx| {
 5414                FollowableViewRegistry::from_state_proto(this.clone(), id, variant, window, cx)
 5415            })?;
 5416
 5417            let Some(task) = task else {
 5418                anyhow::bail!(
 5419                    "failed to construct view from leader (maybe from a different version of zed?)"
 5420                );
 5421            };
 5422
 5423            let mut new_item = task.await?;
 5424            pane.update_in(cx, |pane, window, cx| {
 5425                let mut item_to_remove = None;
 5426                for (ix, item) in pane.items().enumerate() {
 5427                    if let Some(item) = item.to_followable_item_handle(cx) {
 5428                        match new_item.dedup(item.as_ref(), window, cx) {
 5429                            Some(item::Dedup::KeepExisting) => {
 5430                                new_item =
 5431                                    item.boxed_clone().to_followable_item_handle(cx).unwrap();
 5432                                break;
 5433                            }
 5434                            Some(item::Dedup::ReplaceExisting) => {
 5435                                item_to_remove = Some((ix, item.item_id()));
 5436                                break;
 5437                            }
 5438                            None => {}
 5439                        }
 5440                    }
 5441                }
 5442
 5443                if let Some((ix, id)) = item_to_remove {
 5444                    pane.remove_item(id, false, false, window, cx);
 5445                    pane.add_item(new_item.boxed_clone(), false, false, Some(ix), window, cx);
 5446                }
 5447            })?;
 5448
 5449            new_item
 5450        };
 5451
 5452        this.update_in(cx, |this, window, cx| {
 5453            let state = this.follower_states.get_mut(&leader_id.into())?;
 5454            item.set_leader_id(Some(leader_id.into()), window, cx);
 5455            state.items_by_leader_view_id.insert(
 5456                id,
 5457                FollowerView {
 5458                    view: item,
 5459                    location: panel_id,
 5460                },
 5461            );
 5462
 5463            Some(())
 5464        })
 5465        .context("no follower state")?;
 5466
 5467        Ok(())
 5468    }
 5469
 5470    fn handle_agent_location_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5471        let Some(follower_state) = self.follower_states.get_mut(&CollaboratorId::Agent) else {
 5472            return;
 5473        };
 5474
 5475        if let Some(agent_location) = self.project.read(cx).agent_location() {
 5476            let buffer_entity_id = agent_location.buffer.entity_id();
 5477            let view_id = ViewId {
 5478                creator: CollaboratorId::Agent,
 5479                id: buffer_entity_id.as_u64(),
 5480            };
 5481            follower_state.active_view_id = Some(view_id);
 5482
 5483            let item = match follower_state.items_by_leader_view_id.entry(view_id) {
 5484                hash_map::Entry::Occupied(entry) => Some(entry.into_mut()),
 5485                hash_map::Entry::Vacant(entry) => {
 5486                    let existing_view =
 5487                        follower_state
 5488                            .center_pane
 5489                            .read(cx)
 5490                            .items()
 5491                            .find_map(|item| {
 5492                                let item = item.to_followable_item_handle(cx)?;
 5493                                if item.buffer_kind(cx) == ItemBufferKind::Singleton
 5494                                    && item.project_item_model_ids(cx).as_slice()
 5495                                        == [buffer_entity_id]
 5496                                {
 5497                                    Some(item)
 5498                                } else {
 5499                                    None
 5500                                }
 5501                            });
 5502                    let view = existing_view.or_else(|| {
 5503                        agent_location.buffer.upgrade().and_then(|buffer| {
 5504                            cx.update_default_global(|registry: &mut ProjectItemRegistry, cx| {
 5505                                registry.build_item(buffer, self.project.clone(), None, window, cx)
 5506                            })?
 5507                            .to_followable_item_handle(cx)
 5508                        })
 5509                    });
 5510
 5511                    view.map(|view| {
 5512                        entry.insert(FollowerView {
 5513                            view,
 5514                            location: None,
 5515                        })
 5516                    })
 5517                }
 5518            };
 5519
 5520            if let Some(item) = item {
 5521                item.view
 5522                    .set_leader_id(Some(CollaboratorId::Agent), window, cx);
 5523                item.view
 5524                    .update_agent_location(agent_location.position, window, cx);
 5525            }
 5526        } else {
 5527            follower_state.active_view_id = None;
 5528        }
 5529
 5530        self.leader_updated(CollaboratorId::Agent, window, cx);
 5531    }
 5532
 5533    pub fn update_active_view_for_followers(&mut self, window: &mut Window, cx: &mut App) {
 5534        let mut is_project_item = true;
 5535        let mut update = proto::UpdateActiveView::default();
 5536        if window.is_window_active() {
 5537            let (active_item, panel_id) = self.active_item_for_followers(window, cx);
 5538
 5539            if let Some(item) = active_item
 5540                && item.item_focus_handle(cx).contains_focused(window, cx)
 5541            {
 5542                let leader_id = self
 5543                    .pane_for(&*item)
 5544                    .and_then(|pane| self.leader_for_pane(&pane));
 5545                let leader_peer_id = match leader_id {
 5546                    Some(CollaboratorId::PeerId(peer_id)) => Some(peer_id),
 5547                    Some(CollaboratorId::Agent) | None => None,
 5548                };
 5549
 5550                if let Some(item) = item.to_followable_item_handle(cx) {
 5551                    let id = item
 5552                        .remote_id(&self.app_state.client, window, cx)
 5553                        .map(|id| id.to_proto());
 5554
 5555                    if let Some(id) = id
 5556                        && let Some(variant) = item.to_state_proto(window, cx)
 5557                    {
 5558                        let view = Some(proto::View {
 5559                            id,
 5560                            leader_id: leader_peer_id,
 5561                            variant: Some(variant),
 5562                            panel_id: panel_id.map(|id| id as i32),
 5563                        });
 5564
 5565                        is_project_item = item.is_project_item(window, cx);
 5566                        update = proto::UpdateActiveView { view };
 5567                    };
 5568                }
 5569            }
 5570        }
 5571
 5572        let active_view_id = update.view.as_ref().and_then(|view| view.id.as_ref());
 5573        if active_view_id != self.last_active_view_id.as_ref() {
 5574            self.last_active_view_id = active_view_id.cloned();
 5575            self.update_followers(
 5576                is_project_item,
 5577                proto::update_followers::Variant::UpdateActiveView(update),
 5578                window,
 5579                cx,
 5580            );
 5581        }
 5582    }
 5583
 5584    fn active_item_for_followers(
 5585        &self,
 5586        window: &mut Window,
 5587        cx: &mut App,
 5588    ) -> (Option<Box<dyn ItemHandle>>, Option<proto::PanelId>) {
 5589        let mut active_item = None;
 5590        let mut panel_id = None;
 5591        for dock in self.all_docks() {
 5592            if dock.focus_handle(cx).contains_focused(window, cx)
 5593                && let Some(panel) = dock.read(cx).active_panel()
 5594                && let Some(pane) = panel.pane(cx)
 5595                && let Some(item) = pane.read(cx).active_item()
 5596            {
 5597                active_item = Some(item);
 5598                panel_id = panel.remote_id();
 5599                break;
 5600            }
 5601        }
 5602
 5603        if active_item.is_none() {
 5604            active_item = self.active_pane().read(cx).active_item();
 5605        }
 5606        (active_item, panel_id)
 5607    }
 5608
 5609    fn update_followers(
 5610        &self,
 5611        project_only: bool,
 5612        update: proto::update_followers::Variant,
 5613        _: &mut Window,
 5614        cx: &mut App,
 5615    ) -> Option<()> {
 5616        // If this update only applies to for followers in the current project,
 5617        // then skip it unless this project is shared. If it applies to all
 5618        // followers, regardless of project, then set `project_id` to none,
 5619        // indicating that it goes to all followers.
 5620        let project_id = if project_only {
 5621            Some(self.project.read(cx).remote_id()?)
 5622        } else {
 5623            None
 5624        };
 5625        self.app_state().workspace_store.update(cx, |store, cx| {
 5626            store.update_followers(project_id, update, cx)
 5627        })
 5628    }
 5629
 5630    pub fn leader_for_pane(&self, pane: &Entity<Pane>) -> Option<CollaboratorId> {
 5631        self.follower_states.iter().find_map(|(leader_id, state)| {
 5632            if state.center_pane == *pane || state.dock_pane.as_ref() == Some(pane) {
 5633                Some(*leader_id)
 5634            } else {
 5635                None
 5636            }
 5637        })
 5638    }
 5639
 5640    fn leader_updated(
 5641        &mut self,
 5642        leader_id: impl Into<CollaboratorId>,
 5643        window: &mut Window,
 5644        cx: &mut Context<Self>,
 5645    ) -> Option<Box<dyn ItemHandle>> {
 5646        cx.notify();
 5647
 5648        let leader_id = leader_id.into();
 5649        let (panel_id, item) = match leader_id {
 5650            CollaboratorId::PeerId(peer_id) => self.active_item_for_peer(peer_id, window, cx)?,
 5651            CollaboratorId::Agent => (None, self.active_item_for_agent()?),
 5652        };
 5653
 5654        let state = self.follower_states.get(&leader_id)?;
 5655        let mut transfer_focus = state.center_pane.read(cx).has_focus(window, cx);
 5656        let pane;
 5657        if let Some(panel_id) = panel_id {
 5658            pane = self
 5659                .activate_panel_for_proto_id(panel_id, window, cx)?
 5660                .pane(cx)?;
 5661            let state = self.follower_states.get_mut(&leader_id)?;
 5662            state.dock_pane = Some(pane.clone());
 5663        } else {
 5664            pane = state.center_pane.clone();
 5665            let state = self.follower_states.get_mut(&leader_id)?;
 5666            if let Some(dock_pane) = state.dock_pane.take() {
 5667                transfer_focus |= dock_pane.focus_handle(cx).contains_focused(window, cx);
 5668            }
 5669        }
 5670
 5671        pane.update(cx, |pane, cx| {
 5672            let focus_active_item = pane.has_focus(window, cx) || transfer_focus;
 5673            if let Some(index) = pane.index_for_item(item.as_ref()) {
 5674                pane.activate_item(index, false, false, window, cx);
 5675            } else {
 5676                pane.add_item(item.boxed_clone(), false, false, None, window, cx)
 5677            }
 5678
 5679            if focus_active_item {
 5680                pane.focus_active_item(window, cx)
 5681            }
 5682        });
 5683
 5684        Some(item)
 5685    }
 5686
 5687    fn active_item_for_agent(&self) -> Option<Box<dyn ItemHandle>> {
 5688        let state = self.follower_states.get(&CollaboratorId::Agent)?;
 5689        let active_view_id = state.active_view_id?;
 5690        Some(
 5691            state
 5692                .items_by_leader_view_id
 5693                .get(&active_view_id)?
 5694                .view
 5695                .boxed_clone(),
 5696        )
 5697    }
 5698
 5699    fn active_item_for_peer(
 5700        &self,
 5701        peer_id: PeerId,
 5702        window: &mut Window,
 5703        cx: &mut Context<Self>,
 5704    ) -> Option<(Option<PanelId>, Box<dyn ItemHandle>)> {
 5705        let call = self.active_call()?;
 5706        let room = call.read(cx).room()?.read(cx);
 5707        let participant = room.remote_participant_for_peer_id(peer_id)?;
 5708        let leader_in_this_app;
 5709        let leader_in_this_project;
 5710        match participant.location {
 5711            call::ParticipantLocation::SharedProject { project_id } => {
 5712                leader_in_this_app = true;
 5713                leader_in_this_project = Some(project_id) == self.project.read(cx).remote_id();
 5714            }
 5715            call::ParticipantLocation::UnsharedProject => {
 5716                leader_in_this_app = true;
 5717                leader_in_this_project = false;
 5718            }
 5719            call::ParticipantLocation::External => {
 5720                leader_in_this_app = false;
 5721                leader_in_this_project = false;
 5722            }
 5723        };
 5724        let state = self.follower_states.get(&peer_id.into())?;
 5725        let mut item_to_activate = None;
 5726        if let (Some(active_view_id), true) = (state.active_view_id, leader_in_this_app) {
 5727            if let Some(item) = state.items_by_leader_view_id.get(&active_view_id)
 5728                && (leader_in_this_project || !item.view.is_project_item(window, cx))
 5729            {
 5730                item_to_activate = Some((item.location, item.view.boxed_clone()));
 5731            }
 5732        } else if let Some(shared_screen) =
 5733            self.shared_screen_for_peer(peer_id, &state.center_pane, window, cx)
 5734        {
 5735            item_to_activate = Some((None, Box::new(shared_screen)));
 5736        }
 5737        item_to_activate
 5738    }
 5739
 5740    fn shared_screen_for_peer(
 5741        &self,
 5742        peer_id: PeerId,
 5743        pane: &Entity<Pane>,
 5744        window: &mut Window,
 5745        cx: &mut App,
 5746    ) -> Option<Entity<SharedScreen>> {
 5747        let call = self.active_call()?;
 5748        let room = call.read(cx).room()?.clone();
 5749        let participant = room.read(cx).remote_participant_for_peer_id(peer_id)?;
 5750        let track = participant.video_tracks.values().next()?.clone();
 5751        let user = participant.user.clone();
 5752
 5753        for item in pane.read(cx).items_of_type::<SharedScreen>() {
 5754            if item.read(cx).peer_id == peer_id {
 5755                return Some(item);
 5756            }
 5757        }
 5758
 5759        Some(cx.new(|cx| SharedScreen::new(track, peer_id, user.clone(), room.clone(), window, cx)))
 5760    }
 5761
 5762    pub fn on_window_activation_changed(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5763        if window.is_window_active() {
 5764            self.update_active_view_for_followers(window, cx);
 5765
 5766            if let Some(database_id) = self.database_id {
 5767                cx.background_spawn(persistence::DB.update_timestamp(database_id))
 5768                    .detach();
 5769            }
 5770        } else {
 5771            for pane in &self.panes {
 5772                pane.update(cx, |pane, cx| {
 5773                    if let Some(item) = pane.active_item() {
 5774                        item.workspace_deactivated(window, cx);
 5775                    }
 5776                    for item in pane.items() {
 5777                        if matches!(
 5778                            item.workspace_settings(cx).autosave,
 5779                            AutosaveSetting::OnWindowChange | AutosaveSetting::OnFocusChange
 5780                        ) {
 5781                            Pane::autosave_item(item.as_ref(), self.project.clone(), window, cx)
 5782                                .detach_and_log_err(cx);
 5783                        }
 5784                    }
 5785                });
 5786            }
 5787        }
 5788    }
 5789
 5790    pub fn active_call(&self) -> Option<&Entity<ActiveCall>> {
 5791        self.active_call.as_ref().map(|(call, _)| call)
 5792    }
 5793
 5794    fn on_active_call_event(
 5795        &mut self,
 5796        _: &Entity<ActiveCall>,
 5797        event: &call::room::Event,
 5798        window: &mut Window,
 5799        cx: &mut Context<Self>,
 5800    ) {
 5801        match event {
 5802            call::room::Event::ParticipantLocationChanged { participant_id }
 5803            | call::room::Event::RemoteVideoTracksChanged { participant_id } => {
 5804                self.leader_updated(participant_id, window, cx);
 5805            }
 5806            _ => {}
 5807        }
 5808    }
 5809
 5810    pub fn database_id(&self) -> Option<WorkspaceId> {
 5811        self.database_id
 5812    }
 5813
 5814    pub fn session_id(&self) -> Option<String> {
 5815        self.session_id.clone()
 5816    }
 5817
 5818    pub fn root_paths(&self, cx: &App) -> Vec<Arc<Path>> {
 5819        let project = self.project().read(cx);
 5820        project
 5821            .visible_worktrees(cx)
 5822            .map(|worktree| worktree.read(cx).abs_path())
 5823            .collect::<Vec<_>>()
 5824    }
 5825
 5826    fn remove_panes(&mut self, member: Member, window: &mut Window, cx: &mut Context<Workspace>) {
 5827        match member {
 5828            Member::Axis(PaneAxis { members, .. }) => {
 5829                for child in members.iter() {
 5830                    self.remove_panes(child.clone(), window, cx)
 5831                }
 5832            }
 5833            Member::Pane(pane) => {
 5834                self.force_remove_pane(&pane, &None, window, cx);
 5835            }
 5836        }
 5837    }
 5838
 5839    fn remove_from_session(&mut self, window: &mut Window, cx: &mut App) -> Task<()> {
 5840        self.session_id.take();
 5841        self.serialize_workspace_internal(window, cx)
 5842    }
 5843
 5844    fn force_remove_pane(
 5845        &mut self,
 5846        pane: &Entity<Pane>,
 5847        focus_on: &Option<Entity<Pane>>,
 5848        window: &mut Window,
 5849        cx: &mut Context<Workspace>,
 5850    ) {
 5851        self.panes.retain(|p| p != pane);
 5852        if let Some(focus_on) = focus_on {
 5853            focus_on.update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5854        } else if self.active_pane() == pane {
 5855            self.panes
 5856                .last()
 5857                .unwrap()
 5858                .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 5859        }
 5860        if self.last_active_center_pane == Some(pane.downgrade()) {
 5861            self.last_active_center_pane = None;
 5862        }
 5863        cx.notify();
 5864    }
 5865
 5866    fn serialize_workspace(&mut self, window: &mut Window, cx: &mut Context<Self>) {
 5867        if self._schedule_serialize_workspace.is_none() {
 5868            self._schedule_serialize_workspace =
 5869                Some(cx.spawn_in(window, async move |this, cx| {
 5870                    cx.background_executor()
 5871                        .timer(SERIALIZATION_THROTTLE_TIME)
 5872                        .await;
 5873                    this.update_in(cx, |this, window, cx| {
 5874                        this.serialize_workspace_internal(window, cx).detach();
 5875                        this._schedule_serialize_workspace.take();
 5876                    })
 5877                    .log_err();
 5878                }));
 5879        }
 5880    }
 5881
 5882    fn serialize_workspace_internal(&self, window: &mut Window, cx: &mut App) -> Task<()> {
 5883        let Some(database_id) = self.database_id() else {
 5884            return Task::ready(());
 5885        };
 5886
 5887        fn serialize_pane_handle(
 5888            pane_handle: &Entity<Pane>,
 5889            window: &mut Window,
 5890            cx: &mut App,
 5891        ) -> SerializedPane {
 5892            let (items, active, pinned_count) = {
 5893                let pane = pane_handle.read(cx);
 5894                let active_item_id = pane.active_item().map(|item| item.item_id());
 5895                (
 5896                    pane.items()
 5897                        .filter_map(|handle| {
 5898                            let handle = handle.to_serializable_item_handle(cx)?;
 5899
 5900                            Some(SerializedItem {
 5901                                kind: Arc::from(handle.serialized_item_kind()),
 5902                                item_id: handle.item_id().as_u64(),
 5903                                active: Some(handle.item_id()) == active_item_id,
 5904                                preview: pane.is_active_preview_item(handle.item_id()),
 5905                            })
 5906                        })
 5907                        .collect::<Vec<_>>(),
 5908                    pane.has_focus(window, cx),
 5909                    pane.pinned_count(),
 5910                )
 5911            };
 5912
 5913            SerializedPane::new(items, active, pinned_count)
 5914        }
 5915
 5916        fn build_serialized_pane_group(
 5917            pane_group: &Member,
 5918            window: &mut Window,
 5919            cx: &mut App,
 5920        ) -> SerializedPaneGroup {
 5921            match pane_group {
 5922                Member::Axis(PaneAxis {
 5923                    axis,
 5924                    members,
 5925                    flexes,
 5926                    bounding_boxes: _,
 5927                }) => SerializedPaneGroup::Group {
 5928                    axis: SerializedAxis(*axis),
 5929                    children: members
 5930                        .iter()
 5931                        .map(|member| build_serialized_pane_group(member, window, cx))
 5932                        .collect::<Vec<_>>(),
 5933                    flexes: Some(flexes.lock().clone()),
 5934                },
 5935                Member::Pane(pane_handle) => {
 5936                    SerializedPaneGroup::Pane(serialize_pane_handle(pane_handle, window, cx))
 5937                }
 5938            }
 5939        }
 5940
 5941        fn build_serialized_docks(
 5942            this: &Workspace,
 5943            window: &mut Window,
 5944            cx: &mut App,
 5945        ) -> DockStructure {
 5946            let left_dock = this.left_dock.read(cx);
 5947            let left_visible = left_dock.is_open();
 5948            let left_active_panel = left_dock
 5949                .active_panel()
 5950                .map(|panel| panel.persistent_name().to_string());
 5951            let left_dock_zoom = left_dock
 5952                .active_panel()
 5953                .map(|panel| panel.is_zoomed(window, cx))
 5954                .unwrap_or(false);
 5955
 5956            let right_dock = this.right_dock.read(cx);
 5957            let right_visible = right_dock.is_open();
 5958            let right_active_panel = right_dock
 5959                .active_panel()
 5960                .map(|panel| panel.persistent_name().to_string());
 5961            let right_dock_zoom = right_dock
 5962                .active_panel()
 5963                .map(|panel| panel.is_zoomed(window, cx))
 5964                .unwrap_or(false);
 5965
 5966            let bottom_dock = this.bottom_dock.read(cx);
 5967            let bottom_visible = bottom_dock.is_open();
 5968            let bottom_active_panel = bottom_dock
 5969                .active_panel()
 5970                .map(|panel| panel.persistent_name().to_string());
 5971            let bottom_dock_zoom = bottom_dock
 5972                .active_panel()
 5973                .map(|panel| panel.is_zoomed(window, cx))
 5974                .unwrap_or(false);
 5975
 5976            DockStructure {
 5977                left: DockData {
 5978                    visible: left_visible,
 5979                    active_panel: left_active_panel,
 5980                    zoom: left_dock_zoom,
 5981                },
 5982                right: DockData {
 5983                    visible: right_visible,
 5984                    active_panel: right_active_panel,
 5985                    zoom: right_dock_zoom,
 5986                },
 5987                bottom: DockData {
 5988                    visible: bottom_visible,
 5989                    active_panel: bottom_active_panel,
 5990                    zoom: bottom_dock_zoom,
 5991                },
 5992            }
 5993        }
 5994
 5995        match self.serialize_workspace_location(cx) {
 5996            WorkspaceLocation::Location(location, paths) => {
 5997                let breakpoints = self.project.update(cx, |project, cx| {
 5998                    project
 5999                        .breakpoint_store()
 6000                        .read(cx)
 6001                        .all_source_breakpoints(cx)
 6002                });
 6003                let user_toolchains = self
 6004                    .project
 6005                    .read(cx)
 6006                    .user_toolchains(cx)
 6007                    .unwrap_or_default();
 6008
 6009                let center_group = build_serialized_pane_group(&self.center.root, window, cx);
 6010                let docks = build_serialized_docks(self, window, cx);
 6011                let window_bounds = Some(SerializedWindowBounds(window.window_bounds()));
 6012
 6013                let serialized_workspace = SerializedWorkspace {
 6014                    id: database_id,
 6015                    location,
 6016                    paths,
 6017                    center_group,
 6018                    window_bounds,
 6019                    display: Default::default(),
 6020                    docks,
 6021                    centered_layout: self.centered_layout,
 6022                    session_id: self.session_id.clone(),
 6023                    breakpoints,
 6024                    window_id: Some(window.window_handle().window_id().as_u64()),
 6025                    user_toolchains,
 6026                };
 6027
 6028                window.spawn(cx, async move |_| {
 6029                    persistence::DB.save_workspace(serialized_workspace).await;
 6030                })
 6031            }
 6032            WorkspaceLocation::DetachFromSession => {
 6033                let window_bounds = SerializedWindowBounds(window.window_bounds());
 6034                let display = window.display(cx).and_then(|d| d.uuid().ok());
 6035                // Save dock state for empty local workspaces
 6036                let docks = build_serialized_docks(self, window, cx);
 6037                window.spawn(cx, async move |_| {
 6038                    persistence::DB
 6039                        .set_window_open_status(
 6040                            database_id,
 6041                            window_bounds,
 6042                            display.unwrap_or_default(),
 6043                        )
 6044                        .await
 6045                        .log_err();
 6046                    persistence::DB
 6047                        .set_session_id(database_id, None)
 6048                        .await
 6049                        .log_err();
 6050                    persistence::write_default_dock_state(docks).await.log_err();
 6051                })
 6052            }
 6053            WorkspaceLocation::None => {
 6054                // Save dock state for empty non-local workspaces
 6055                let docks = build_serialized_docks(self, window, cx);
 6056                window.spawn(cx, async move |_| {
 6057                    persistence::write_default_dock_state(docks).await.log_err();
 6058                })
 6059            }
 6060        }
 6061    }
 6062
 6063    fn has_any_items_open(&self, cx: &App) -> bool {
 6064        self.panes.iter().any(|pane| pane.read(cx).items_len() > 0)
 6065    }
 6066
 6067    fn serialize_workspace_location(&self, cx: &App) -> WorkspaceLocation {
 6068        let paths = PathList::new(&self.root_paths(cx));
 6069        if let Some(connection) = self.project.read(cx).remote_connection_options(cx) {
 6070            WorkspaceLocation::Location(SerializedWorkspaceLocation::Remote(connection), paths)
 6071        } else if self.project.read(cx).is_local() {
 6072            if !paths.is_empty() || self.has_any_items_open(cx) {
 6073                WorkspaceLocation::Location(SerializedWorkspaceLocation::Local, paths)
 6074            } else {
 6075                WorkspaceLocation::DetachFromSession
 6076            }
 6077        } else {
 6078            WorkspaceLocation::None
 6079        }
 6080    }
 6081
 6082    fn update_history(&self, cx: &mut App) {
 6083        let Some(id) = self.database_id() else {
 6084            return;
 6085        };
 6086        if !self.project.read(cx).is_local() {
 6087            return;
 6088        }
 6089        if let Some(manager) = HistoryManager::global(cx) {
 6090            let paths = PathList::new(&self.root_paths(cx));
 6091            manager.update(cx, |this, cx| {
 6092                this.update_history(id, HistoryManagerEntry::new(id, &paths), cx);
 6093            });
 6094        }
 6095    }
 6096
 6097    async fn serialize_items(
 6098        this: &WeakEntity<Self>,
 6099        items_rx: UnboundedReceiver<Box<dyn SerializableItemHandle>>,
 6100        cx: &mut AsyncWindowContext,
 6101    ) -> Result<()> {
 6102        const CHUNK_SIZE: usize = 200;
 6103
 6104        let mut serializable_items = items_rx.ready_chunks(CHUNK_SIZE);
 6105
 6106        while let Some(items_received) = serializable_items.next().await {
 6107            let unique_items =
 6108                items_received
 6109                    .into_iter()
 6110                    .fold(HashMap::default(), |mut acc, item| {
 6111                        acc.entry(item.item_id()).or_insert(item);
 6112                        acc
 6113                    });
 6114
 6115            // We use into_iter() here so that the references to the items are moved into
 6116            // the tasks and not kept alive while we're sleeping.
 6117            for (_, item) in unique_items.into_iter() {
 6118                if let Ok(Some(task)) = this.update_in(cx, |workspace, window, cx| {
 6119                    item.serialize(workspace, false, window, cx)
 6120                }) {
 6121                    cx.background_spawn(async move { task.await.log_err() })
 6122                        .detach();
 6123                }
 6124            }
 6125
 6126            cx.background_executor()
 6127                .timer(SERIALIZATION_THROTTLE_TIME)
 6128                .await;
 6129        }
 6130
 6131        Ok(())
 6132    }
 6133
 6134    pub(crate) fn enqueue_item_serialization(
 6135        &mut self,
 6136        item: Box<dyn SerializableItemHandle>,
 6137    ) -> Result<()> {
 6138        self.serializable_items_tx
 6139            .unbounded_send(item)
 6140            .map_err(|err| anyhow!("failed to send serializable item over channel: {err}"))
 6141    }
 6142
 6143    pub(crate) fn load_workspace(
 6144        serialized_workspace: SerializedWorkspace,
 6145        paths_to_open: Vec<Option<ProjectPath>>,
 6146        window: &mut Window,
 6147        cx: &mut Context<Workspace>,
 6148    ) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 6149        cx.spawn_in(window, async move |workspace, cx| {
 6150            let project = workspace.read_with(cx, |workspace, _| workspace.project().clone())?;
 6151
 6152            let mut center_group = None;
 6153            let mut center_items = None;
 6154
 6155            // Traverse the splits tree and add to things
 6156            if let Some((group, active_pane, items)) = serialized_workspace
 6157                .center_group
 6158                .deserialize(&project, serialized_workspace.id, workspace.clone(), cx)
 6159                .await
 6160            {
 6161                center_items = Some(items);
 6162                center_group = Some((group, active_pane))
 6163            }
 6164
 6165            let mut items_by_project_path = HashMap::default();
 6166            let mut item_ids_by_kind = HashMap::default();
 6167            let mut all_deserialized_items = Vec::default();
 6168            cx.update(|_, cx| {
 6169                for item in center_items.unwrap_or_default().into_iter().flatten() {
 6170                    if let Some(serializable_item_handle) = item.to_serializable_item_handle(cx) {
 6171                        item_ids_by_kind
 6172                            .entry(serializable_item_handle.serialized_item_kind())
 6173                            .or_insert(Vec::new())
 6174                            .push(item.item_id().as_u64() as ItemId);
 6175                    }
 6176
 6177                    if let Some(project_path) = item.project_path(cx) {
 6178                        items_by_project_path.insert(project_path, item.clone());
 6179                    }
 6180                    all_deserialized_items.push(item);
 6181                }
 6182            })?;
 6183
 6184            let opened_items = paths_to_open
 6185                .into_iter()
 6186                .map(|path_to_open| {
 6187                    path_to_open
 6188                        .and_then(|path_to_open| items_by_project_path.remove(&path_to_open))
 6189                })
 6190                .collect::<Vec<_>>();
 6191
 6192            // Remove old panes from workspace panes list
 6193            workspace.update_in(cx, |workspace, window, cx| {
 6194                if let Some((center_group, active_pane)) = center_group {
 6195                    workspace.remove_panes(workspace.center.root.clone(), window, cx);
 6196
 6197                    // Swap workspace center group
 6198                    workspace.center = PaneGroup::with_root(center_group);
 6199                    workspace.center.set_is_center(true);
 6200                    workspace.center.mark_positions(cx);
 6201
 6202                    if let Some(active_pane) = active_pane {
 6203                        workspace.set_active_pane(&active_pane, window, cx);
 6204                        cx.focus_self(window);
 6205                    } else {
 6206                        workspace.set_active_pane(&workspace.center.first_pane(), window, cx);
 6207                    }
 6208                }
 6209
 6210                let docks = serialized_workspace.docks;
 6211
 6212                for (dock, serialized_dock) in [
 6213                    (&mut workspace.right_dock, docks.right),
 6214                    (&mut workspace.left_dock, docks.left),
 6215                    (&mut workspace.bottom_dock, docks.bottom),
 6216                ]
 6217                .iter_mut()
 6218                {
 6219                    dock.update(cx, |dock, cx| {
 6220                        dock.serialized_dock = Some(serialized_dock.clone());
 6221                        dock.restore_state(window, cx);
 6222                    });
 6223                }
 6224
 6225                cx.notify();
 6226            })?;
 6227
 6228            let _ = project
 6229                .update(cx, |project, cx| {
 6230                    project
 6231                        .breakpoint_store()
 6232                        .update(cx, |breakpoint_store, cx| {
 6233                            breakpoint_store
 6234                                .with_serialized_breakpoints(serialized_workspace.breakpoints, cx)
 6235                        })
 6236                })
 6237                .await;
 6238
 6239            // Clean up all the items that have _not_ been loaded. Our ItemIds aren't stable. That means
 6240            // after loading the items, we might have different items and in order to avoid
 6241            // the database filling up, we delete items that haven't been loaded now.
 6242            //
 6243            // The items that have been loaded, have been saved after they've been added to the workspace.
 6244            let clean_up_tasks = workspace.update_in(cx, |_, window, cx| {
 6245                item_ids_by_kind
 6246                    .into_iter()
 6247                    .map(|(item_kind, loaded_items)| {
 6248                        SerializableItemRegistry::cleanup(
 6249                            item_kind,
 6250                            serialized_workspace.id,
 6251                            loaded_items,
 6252                            window,
 6253                            cx,
 6254                        )
 6255                        .log_err()
 6256                    })
 6257                    .collect::<Vec<_>>()
 6258            })?;
 6259
 6260            futures::future::join_all(clean_up_tasks).await;
 6261
 6262            workspace
 6263                .update_in(cx, |workspace, window, cx| {
 6264                    // Serialize ourself to make sure our timestamps and any pane / item changes are replicated
 6265                    workspace.serialize_workspace_internal(window, cx).detach();
 6266
 6267                    // Ensure that we mark the window as edited if we did load dirty items
 6268                    workspace.update_window_edited(window, cx);
 6269                })
 6270                .ok();
 6271
 6272            Ok(opened_items)
 6273        })
 6274    }
 6275
 6276    fn actions(&self, div: Div, window: &mut Window, cx: &mut Context<Self>) -> Div {
 6277        self.add_workspace_actions_listeners(div, window, cx)
 6278            .on_action(cx.listener(
 6279                |_workspace, action_sequence: &settings::ActionSequence, window, cx| {
 6280                    for action in &action_sequence.0 {
 6281                        window.dispatch_action(action.boxed_clone(), cx);
 6282                    }
 6283                },
 6284            ))
 6285            .on_action(cx.listener(Self::close_inactive_items_and_panes))
 6286            .on_action(cx.listener(Self::close_all_items_and_panes))
 6287            .on_action(cx.listener(Self::close_item_in_all_panes))
 6288            .on_action(cx.listener(Self::save_all))
 6289            .on_action(cx.listener(Self::send_keystrokes))
 6290            .on_action(cx.listener(Self::add_folder_to_project))
 6291            .on_action(cx.listener(Self::follow_next_collaborator))
 6292            .on_action(cx.listener(Self::close_window))
 6293            .on_action(cx.listener(Self::activate_pane_at_index))
 6294            .on_action(cx.listener(Self::move_item_to_pane_at_index))
 6295            .on_action(cx.listener(Self::move_focused_panel_to_next_position))
 6296            .on_action(cx.listener(Self::toggle_edit_predictions_all_files))
 6297            .on_action(cx.listener(|workspace, _: &Unfollow, window, cx| {
 6298                let pane = workspace.active_pane().clone();
 6299                workspace.unfollow_in_pane(&pane, window, cx);
 6300            }))
 6301            .on_action(cx.listener(|workspace, action: &Save, window, cx| {
 6302                workspace
 6303                    .save_active_item(action.save_intent.unwrap_or(SaveIntent::Save), window, cx)
 6304                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6305            }))
 6306            .on_action(cx.listener(|workspace, _: &SaveWithoutFormat, window, cx| {
 6307                workspace
 6308                    .save_active_item(SaveIntent::SaveWithoutFormat, window, cx)
 6309                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6310            }))
 6311            .on_action(cx.listener(|workspace, _: &SaveAs, window, cx| {
 6312                workspace
 6313                    .save_active_item(SaveIntent::SaveAs, window, cx)
 6314                    .detach_and_prompt_err("Failed to save", window, cx, |_, _, _| None);
 6315            }))
 6316            .on_action(
 6317                cx.listener(|workspace, _: &ActivatePreviousPane, window, cx| {
 6318                    workspace.activate_previous_pane(window, cx)
 6319                }),
 6320            )
 6321            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6322                workspace.activate_next_pane(window, cx)
 6323            }))
 6324            .on_action(
 6325                cx.listener(|workspace, _: &ActivateNextWindow, _window, cx| {
 6326                    workspace.activate_next_window(cx)
 6327                }),
 6328            )
 6329            .on_action(
 6330                cx.listener(|workspace, _: &ActivatePreviousWindow, _window, cx| {
 6331                    workspace.activate_previous_window(cx)
 6332                }),
 6333            )
 6334            .on_action(cx.listener(|workspace, _: &ActivatePaneLeft, window, cx| {
 6335                workspace.activate_pane_in_direction(SplitDirection::Left, window, cx)
 6336            }))
 6337            .on_action(cx.listener(|workspace, _: &ActivatePaneRight, window, cx| {
 6338                workspace.activate_pane_in_direction(SplitDirection::Right, window, cx)
 6339            }))
 6340            .on_action(cx.listener(|workspace, _: &ActivatePaneUp, window, cx| {
 6341                workspace.activate_pane_in_direction(SplitDirection::Up, window, cx)
 6342            }))
 6343            .on_action(cx.listener(|workspace, _: &ActivatePaneDown, window, cx| {
 6344                workspace.activate_pane_in_direction(SplitDirection::Down, window, cx)
 6345            }))
 6346            .on_action(cx.listener(|workspace, _: &ActivateNextPane, window, cx| {
 6347                workspace.activate_next_pane(window, cx)
 6348            }))
 6349            .on_action(cx.listener(
 6350                |workspace, action: &MoveItemToPaneInDirection, window, cx| {
 6351                    workspace.move_item_to_pane_in_direction(action, window, cx)
 6352                },
 6353            ))
 6354            .on_action(cx.listener(|workspace, _: &SwapPaneLeft, _, cx| {
 6355                workspace.swap_pane_in_direction(SplitDirection::Left, cx)
 6356            }))
 6357            .on_action(cx.listener(|workspace, _: &SwapPaneRight, _, cx| {
 6358                workspace.swap_pane_in_direction(SplitDirection::Right, cx)
 6359            }))
 6360            .on_action(cx.listener(|workspace, _: &SwapPaneUp, _, cx| {
 6361                workspace.swap_pane_in_direction(SplitDirection::Up, cx)
 6362            }))
 6363            .on_action(cx.listener(|workspace, _: &SwapPaneDown, _, cx| {
 6364                workspace.swap_pane_in_direction(SplitDirection::Down, cx)
 6365            }))
 6366            .on_action(cx.listener(|workspace, _: &SwapPaneAdjacent, window, cx| {
 6367                const DIRECTION_PRIORITY: [SplitDirection; 4] = [
 6368                    SplitDirection::Down,
 6369                    SplitDirection::Up,
 6370                    SplitDirection::Right,
 6371                    SplitDirection::Left,
 6372                ];
 6373                for dir in DIRECTION_PRIORITY {
 6374                    if workspace.find_pane_in_direction(dir, cx).is_some() {
 6375                        workspace.swap_pane_in_direction(dir, cx);
 6376                        workspace.activate_pane_in_direction(dir.opposite(), window, cx);
 6377                        break;
 6378                    }
 6379                }
 6380            }))
 6381            .on_action(cx.listener(|workspace, _: &MovePaneLeft, _, cx| {
 6382                workspace.move_pane_to_border(SplitDirection::Left, cx)
 6383            }))
 6384            .on_action(cx.listener(|workspace, _: &MovePaneRight, _, cx| {
 6385                workspace.move_pane_to_border(SplitDirection::Right, cx)
 6386            }))
 6387            .on_action(cx.listener(|workspace, _: &MovePaneUp, _, cx| {
 6388                workspace.move_pane_to_border(SplitDirection::Up, cx)
 6389            }))
 6390            .on_action(cx.listener(|workspace, _: &MovePaneDown, _, cx| {
 6391                workspace.move_pane_to_border(SplitDirection::Down, cx)
 6392            }))
 6393            .on_action(cx.listener(|this, _: &ToggleLeftDock, window, cx| {
 6394                this.toggle_dock(DockPosition::Left, window, cx);
 6395            }))
 6396            .on_action(cx.listener(
 6397                |workspace: &mut Workspace, _: &ToggleRightDock, window, cx| {
 6398                    workspace.toggle_dock(DockPosition::Right, window, cx);
 6399                },
 6400            ))
 6401            .on_action(cx.listener(
 6402                |workspace: &mut Workspace, _: &ToggleBottomDock, window, cx| {
 6403                    workspace.toggle_dock(DockPosition::Bottom, window, cx);
 6404                },
 6405            ))
 6406            .on_action(cx.listener(
 6407                |workspace: &mut Workspace, _: &CloseActiveDock, window, cx| {
 6408                    if !workspace.close_active_dock(window, cx) {
 6409                        cx.propagate();
 6410                    }
 6411                },
 6412            ))
 6413            .on_action(
 6414                cx.listener(|workspace: &mut Workspace, _: &CloseAllDocks, window, cx| {
 6415                    workspace.close_all_docks(window, cx);
 6416                }),
 6417            )
 6418            .on_action(cx.listener(Self::toggle_all_docks))
 6419            .on_action(cx.listener(
 6420                |workspace: &mut Workspace, _: &ClearAllNotifications, _, cx| {
 6421                    workspace.clear_all_notifications(cx);
 6422                },
 6423            ))
 6424            .on_action(cx.listener(
 6425                |workspace: &mut Workspace, _: &ClearNavigationHistory, window, cx| {
 6426                    workspace.clear_navigation_history(window, cx);
 6427                },
 6428            ))
 6429            .on_action(cx.listener(
 6430                |workspace: &mut Workspace, _: &SuppressNotification, _, cx| {
 6431                    if let Some((notification_id, _)) = workspace.notifications.pop() {
 6432                        workspace.suppress_notification(&notification_id, cx);
 6433                    }
 6434                },
 6435            ))
 6436            .on_action(cx.listener(
 6437                |workspace: &mut Workspace, _: &ToggleWorktreeSecurity, window, cx| {
 6438                    workspace.show_worktree_trust_security_modal(true, window, cx);
 6439                },
 6440            ))
 6441            .on_action(
 6442                cx.listener(|_: &mut Workspace, _: &ClearTrustedWorktrees, _, cx| {
 6443                    if let Some(trusted_worktrees) = TrustedWorktrees::try_get_global(cx) {
 6444                        trusted_worktrees.update(cx, |trusted_worktrees, _| {
 6445                            trusted_worktrees.clear_trusted_paths()
 6446                        });
 6447                        let clear_task = persistence::DB.clear_trusted_worktrees();
 6448                        cx.spawn(async move |_, cx| {
 6449                            if clear_task.await.log_err().is_some() {
 6450                                cx.update(|cx| reload(cx));
 6451                            }
 6452                        })
 6453                        .detach();
 6454                    }
 6455                }),
 6456            )
 6457            .on_action(cx.listener(
 6458                |workspace: &mut Workspace, _: &ReopenClosedItem, window, cx| {
 6459                    workspace.reopen_closed_item(window, cx).detach();
 6460                },
 6461            ))
 6462            .on_action(cx.listener(
 6463                |workspace: &mut Workspace, _: &ResetActiveDockSize, window, cx| {
 6464                    for dock in workspace.all_docks() {
 6465                        if dock.focus_handle(cx).contains_focused(window, cx) {
 6466                            let Some(panel) = dock.read(cx).active_panel() else {
 6467                                return;
 6468                            };
 6469
 6470                            // Set to `None`, then the size will fall back to the default.
 6471                            panel.clone().set_size(None, window, cx);
 6472
 6473                            return;
 6474                        }
 6475                    }
 6476                },
 6477            ))
 6478            .on_action(cx.listener(
 6479                |workspace: &mut Workspace, _: &ResetOpenDocksSize, window, cx| {
 6480                    for dock in workspace.all_docks() {
 6481                        if let Some(panel) = dock.read(cx).visible_panel() {
 6482                            // Set to `None`, then the size will fall back to the default.
 6483                            panel.clone().set_size(None, window, cx);
 6484                        }
 6485                    }
 6486                },
 6487            ))
 6488            .on_action(cx.listener(
 6489                |workspace: &mut Workspace, act: &IncreaseActiveDockSize, window, cx| {
 6490                    adjust_active_dock_size_by_px(
 6491                        px_with_ui_font_fallback(act.px, cx),
 6492                        workspace,
 6493                        window,
 6494                        cx,
 6495                    );
 6496                },
 6497            ))
 6498            .on_action(cx.listener(
 6499                |workspace: &mut Workspace, act: &DecreaseActiveDockSize, window, cx| {
 6500                    adjust_active_dock_size_by_px(
 6501                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6502                        workspace,
 6503                        window,
 6504                        cx,
 6505                    );
 6506                },
 6507            ))
 6508            .on_action(cx.listener(
 6509                |workspace: &mut Workspace, act: &IncreaseOpenDocksSize, window, cx| {
 6510                    adjust_open_docks_size_by_px(
 6511                        px_with_ui_font_fallback(act.px, cx),
 6512                        workspace,
 6513                        window,
 6514                        cx,
 6515                    );
 6516                },
 6517            ))
 6518            .on_action(cx.listener(
 6519                |workspace: &mut Workspace, act: &DecreaseOpenDocksSize, window, cx| {
 6520                    adjust_open_docks_size_by_px(
 6521                        px_with_ui_font_fallback(act.px, cx) * -1.,
 6522                        workspace,
 6523                        window,
 6524                        cx,
 6525                    );
 6526                },
 6527            ))
 6528            .on_action(cx.listener(Workspace::toggle_centered_layout))
 6529            .on_action(cx.listener(
 6530                |workspace: &mut Workspace, _action: &pane::ActivateNextItem, window, cx| {
 6531                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6532                        let dock = active_dock.read(cx);
 6533                        if let Some(active_panel) = dock.active_panel() {
 6534                            if active_panel.pane(cx).is_none() {
 6535                                let mut recent_pane: Option<Entity<Pane>> = None;
 6536                                let mut recent_timestamp = 0;
 6537                                for pane_handle in workspace.panes() {
 6538                                    let pane = pane_handle.read(cx);
 6539                                    for entry in pane.activation_history() {
 6540                                        if entry.timestamp > recent_timestamp {
 6541                                            recent_timestamp = entry.timestamp;
 6542                                            recent_pane = Some(pane_handle.clone());
 6543                                        }
 6544                                    }
 6545                                }
 6546
 6547                                if let Some(pane) = recent_pane {
 6548                                    pane.update(cx, |pane, cx| {
 6549                                        let current_index = pane.active_item_index();
 6550                                        let items_len = pane.items_len();
 6551                                        if items_len > 0 {
 6552                                            let next_index = if current_index + 1 < items_len {
 6553                                                current_index + 1
 6554                                            } else {
 6555                                                0
 6556                                            };
 6557                                            pane.activate_item(
 6558                                                next_index, false, false, window, cx,
 6559                                            );
 6560                                        }
 6561                                    });
 6562                                    return;
 6563                                }
 6564                            }
 6565                        }
 6566                    }
 6567                    cx.propagate();
 6568                },
 6569            ))
 6570            .on_action(cx.listener(
 6571                |workspace: &mut Workspace, _action: &pane::ActivatePreviousItem, window, cx| {
 6572                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6573                        let dock = active_dock.read(cx);
 6574                        if let Some(active_panel) = dock.active_panel() {
 6575                            if active_panel.pane(cx).is_none() {
 6576                                let mut recent_pane: Option<Entity<Pane>> = None;
 6577                                let mut recent_timestamp = 0;
 6578                                for pane_handle in workspace.panes() {
 6579                                    let pane = pane_handle.read(cx);
 6580                                    for entry in pane.activation_history() {
 6581                                        if entry.timestamp > recent_timestamp {
 6582                                            recent_timestamp = entry.timestamp;
 6583                                            recent_pane = Some(pane_handle.clone());
 6584                                        }
 6585                                    }
 6586                                }
 6587
 6588                                if let Some(pane) = recent_pane {
 6589                                    pane.update(cx, |pane, cx| {
 6590                                        let current_index = pane.active_item_index();
 6591                                        let items_len = pane.items_len();
 6592                                        if items_len > 0 {
 6593                                            let prev_index = if current_index > 0 {
 6594                                                current_index - 1
 6595                                            } else {
 6596                                                items_len.saturating_sub(1)
 6597                                            };
 6598                                            pane.activate_item(
 6599                                                prev_index, false, false, window, cx,
 6600                                            );
 6601                                        }
 6602                                    });
 6603                                    return;
 6604                                }
 6605                            }
 6606                        }
 6607                    }
 6608                    cx.propagate();
 6609                },
 6610            ))
 6611            .on_action(cx.listener(
 6612                |workspace: &mut Workspace, action: &pane::CloseActiveItem, window, cx| {
 6613                    if let Some(active_dock) = workspace.active_dock(window, cx) {
 6614                        let dock = active_dock.read(cx);
 6615                        if let Some(active_panel) = dock.active_panel() {
 6616                            if active_panel.pane(cx).is_none() {
 6617                                let active_pane = workspace.active_pane().clone();
 6618                                active_pane.update(cx, |pane, cx| {
 6619                                    pane.close_active_item(action, window, cx)
 6620                                        .detach_and_log_err(cx);
 6621                                });
 6622                                return;
 6623                            }
 6624                        }
 6625                    }
 6626                    cx.propagate();
 6627                },
 6628            ))
 6629            .on_action(
 6630                cx.listener(|workspace, _: &ToggleReadOnlyFile, window, cx| {
 6631                    let pane = workspace.active_pane().clone();
 6632                    if let Some(item) = pane.read(cx).active_item() {
 6633                        item.toggle_read_only(window, cx);
 6634                    }
 6635                }),
 6636            )
 6637            .on_action(cx.listener(Workspace::cancel))
 6638    }
 6639
 6640    #[cfg(any(test, feature = "test-support"))]
 6641    pub fn set_random_database_id(&mut self) {
 6642        self.database_id = Some(WorkspaceId(Uuid::new_v4().as_u64_pair().0 as i64));
 6643    }
 6644
 6645    #[cfg(any(test, feature = "test-support"))]
 6646    pub(crate) fn test_new(
 6647        project: Entity<Project>,
 6648        window: &mut Window,
 6649        cx: &mut Context<Self>,
 6650    ) -> Self {
 6651        use node_runtime::NodeRuntime;
 6652        use session::Session;
 6653
 6654        let client = project.read(cx).client();
 6655        let user_store = project.read(cx).user_store();
 6656        let workspace_store = cx.new(|cx| WorkspaceStore::new(client.clone(), cx));
 6657        let session = cx.new(|cx| AppSession::new(Session::test(), cx));
 6658        window.activate_window();
 6659        let app_state = Arc::new(AppState {
 6660            languages: project.read(cx).languages().clone(),
 6661            workspace_store,
 6662            client,
 6663            user_store,
 6664            fs: project.read(cx).fs().clone(),
 6665            build_window_options: |_, _| Default::default(),
 6666            node_runtime: NodeRuntime::unavailable(),
 6667            session,
 6668        });
 6669        let workspace = Self::new(Default::default(), project, app_state, window, cx);
 6670        workspace
 6671            .active_pane
 6672            .update(cx, |pane, cx| window.focus(&pane.focus_handle(cx), cx));
 6673        workspace
 6674    }
 6675
 6676    pub fn register_action<A: Action>(
 6677        &mut self,
 6678        callback: impl Fn(&mut Self, &A, &mut Window, &mut Context<Self>) + 'static,
 6679    ) -> &mut Self {
 6680        let callback = Arc::new(callback);
 6681
 6682        self.workspace_actions.push(Box::new(move |div, _, _, cx| {
 6683            let callback = callback.clone();
 6684            div.on_action(cx.listener(move |workspace, event, window, cx| {
 6685                (callback)(workspace, event, window, cx)
 6686            }))
 6687        }));
 6688        self
 6689    }
 6690    pub fn register_action_renderer(
 6691        &mut self,
 6692        callback: impl Fn(Div, &Workspace, &mut Window, &mut Context<Self>) -> Div + 'static,
 6693    ) -> &mut Self {
 6694        self.workspace_actions.push(Box::new(callback));
 6695        self
 6696    }
 6697
 6698    fn add_workspace_actions_listeners(
 6699        &self,
 6700        mut div: Div,
 6701        window: &mut Window,
 6702        cx: &mut Context<Self>,
 6703    ) -> Div {
 6704        for action in self.workspace_actions.iter() {
 6705            div = (action)(div, self, window, cx)
 6706        }
 6707        div
 6708    }
 6709
 6710    pub fn has_active_modal(&self, _: &mut Window, cx: &mut App) -> bool {
 6711        self.modal_layer.read(cx).has_active_modal()
 6712    }
 6713
 6714    pub fn active_modal<V: ManagedView + 'static>(&self, cx: &App) -> Option<Entity<V>> {
 6715        self.modal_layer.read(cx).active_modal()
 6716    }
 6717
 6718    /// Toggles a modal of type `V`. If a modal of the same type is currently active,
 6719    /// it will be hidden. If a different modal is active, it will be replaced with the new one.
 6720    /// If no modal is active, the new modal will be shown.
 6721    ///
 6722    /// If closing the current modal fails (e.g., due to `on_before_dismiss` returning
 6723    /// `DismissDecision::Dismiss(false)` or `DismissDecision::Pending`), the new modal
 6724    /// will not be shown.
 6725    pub fn toggle_modal<V: ModalView, B>(&mut self, window: &mut Window, cx: &mut App, build: B)
 6726    where
 6727        B: FnOnce(&mut Window, &mut Context<V>) -> V,
 6728    {
 6729        self.modal_layer.update(cx, |modal_layer, cx| {
 6730            modal_layer.toggle_modal(window, cx, build)
 6731        })
 6732    }
 6733
 6734    pub fn hide_modal(&mut self, window: &mut Window, cx: &mut App) -> bool {
 6735        self.modal_layer
 6736            .update(cx, |modal_layer, cx| modal_layer.hide_modal(window, cx))
 6737    }
 6738
 6739    pub fn toggle_status_toast<V: ToastView>(&mut self, entity: Entity<V>, cx: &mut App) {
 6740        self.toast_layer
 6741            .update(cx, |toast_layer, cx| toast_layer.toggle_toast(cx, entity))
 6742    }
 6743
 6744    pub fn toggle_centered_layout(
 6745        &mut self,
 6746        _: &ToggleCenteredLayout,
 6747        _: &mut Window,
 6748        cx: &mut Context<Self>,
 6749    ) {
 6750        self.centered_layout = !self.centered_layout;
 6751        if let Some(database_id) = self.database_id() {
 6752            cx.background_spawn(DB.set_centered_layout(database_id, self.centered_layout))
 6753                .detach_and_log_err(cx);
 6754        }
 6755        cx.notify();
 6756    }
 6757
 6758    fn adjust_padding(padding: Option<f32>) -> f32 {
 6759        padding
 6760            .unwrap_or(CenteredPaddingSettings::default().0)
 6761            .clamp(
 6762                CenteredPaddingSettings::MIN_PADDING,
 6763                CenteredPaddingSettings::MAX_PADDING,
 6764            )
 6765    }
 6766
 6767    fn render_dock(
 6768        &self,
 6769        position: DockPosition,
 6770        dock: &Entity<Dock>,
 6771        window: &mut Window,
 6772        cx: &mut App,
 6773    ) -> Option<Div> {
 6774        if self.zoomed_position == Some(position) {
 6775            return None;
 6776        }
 6777
 6778        let leader_border = dock.read(cx).active_panel().and_then(|panel| {
 6779            let pane = panel.pane(cx)?;
 6780            let follower_states = &self.follower_states;
 6781            leader_border_for_pane(follower_states, &pane, window, cx)
 6782        });
 6783
 6784        Some(
 6785            div()
 6786                .flex()
 6787                .flex_none()
 6788                .overflow_hidden()
 6789                .child(dock.clone())
 6790                .children(leader_border),
 6791        )
 6792    }
 6793
 6794    pub fn for_window(window: &Window, cx: &App) -> Option<Entity<Workspace>> {
 6795        window
 6796            .root::<MultiWorkspace>()
 6797            .flatten()
 6798            .map(|multi_workspace| multi_workspace.read(cx).workspace().clone())
 6799    }
 6800
 6801    pub fn zoomed_item(&self) -> Option<&AnyWeakView> {
 6802        self.zoomed.as_ref()
 6803    }
 6804
 6805    pub fn activate_next_window(&mut self, cx: &mut Context<Self>) {
 6806        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6807            return;
 6808        };
 6809        let windows = cx.windows();
 6810        let next_window =
 6811            SystemWindowTabController::get_next_tab_group_window(cx, current_window_id).or_else(
 6812                || {
 6813                    windows
 6814                        .iter()
 6815                        .cycle()
 6816                        .skip_while(|window| window.window_id() != current_window_id)
 6817                        .nth(1)
 6818                },
 6819            );
 6820
 6821        if let Some(window) = next_window {
 6822            window
 6823                .update(cx, |_, window, _| window.activate_window())
 6824                .ok();
 6825        }
 6826    }
 6827
 6828    pub fn activate_previous_window(&mut self, cx: &mut Context<Self>) {
 6829        let Some(current_window_id) = cx.active_window().map(|a| a.window_id()) else {
 6830            return;
 6831        };
 6832        let windows = cx.windows();
 6833        let prev_window =
 6834            SystemWindowTabController::get_prev_tab_group_window(cx, current_window_id).or_else(
 6835                || {
 6836                    windows
 6837                        .iter()
 6838                        .rev()
 6839                        .cycle()
 6840                        .skip_while(|window| window.window_id() != current_window_id)
 6841                        .nth(1)
 6842                },
 6843            );
 6844
 6845        if let Some(window) = prev_window {
 6846            window
 6847                .update(cx, |_, window, _| window.activate_window())
 6848                .ok();
 6849        }
 6850    }
 6851
 6852    pub fn cancel(&mut self, _: &menu::Cancel, window: &mut Window, cx: &mut Context<Self>) {
 6853        if cx.stop_active_drag(window) {
 6854        } else if let Some((notification_id, _)) = self.notifications.pop() {
 6855            dismiss_app_notification(&notification_id, cx);
 6856        } else {
 6857            cx.propagate();
 6858        }
 6859    }
 6860
 6861    fn adjust_dock_size_by_px(
 6862        &mut self,
 6863        panel_size: Pixels,
 6864        dock_pos: DockPosition,
 6865        px: Pixels,
 6866        window: &mut Window,
 6867        cx: &mut Context<Self>,
 6868    ) {
 6869        match dock_pos {
 6870            DockPosition::Left => self.resize_left_dock(panel_size + px, window, cx),
 6871            DockPosition::Right => self.resize_right_dock(panel_size + px, window, cx),
 6872            DockPosition::Bottom => self.resize_bottom_dock(panel_size + px, window, cx),
 6873        }
 6874    }
 6875
 6876    fn resize_left_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6877        let size = new_size.min(self.bounds.right() - RESIZE_HANDLE_SIZE);
 6878
 6879        self.left_dock.update(cx, |left_dock, cx| {
 6880            if WorkspaceSettings::get_global(cx)
 6881                .resize_all_panels_in_dock
 6882                .contains(&DockPosition::Left)
 6883            {
 6884                left_dock.resize_all_panels(Some(size), window, cx);
 6885            } else {
 6886                left_dock.resize_active_panel(Some(size), window, cx);
 6887            }
 6888        });
 6889    }
 6890
 6891    fn resize_right_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6892        let mut size = new_size.max(self.bounds.left() - RESIZE_HANDLE_SIZE);
 6893        self.left_dock.read_with(cx, |left_dock, cx| {
 6894            let left_dock_size = left_dock
 6895                .active_panel_size(window, cx)
 6896                .unwrap_or(Pixels::ZERO);
 6897            if left_dock_size + size > self.bounds.right() {
 6898                size = self.bounds.right() - left_dock_size
 6899            }
 6900        });
 6901        self.right_dock.update(cx, |right_dock, cx| {
 6902            if WorkspaceSettings::get_global(cx)
 6903                .resize_all_panels_in_dock
 6904                .contains(&DockPosition::Right)
 6905            {
 6906                right_dock.resize_all_panels(Some(size), window, cx);
 6907            } else {
 6908                right_dock.resize_active_panel(Some(size), window, cx);
 6909            }
 6910        });
 6911    }
 6912
 6913    fn resize_bottom_dock(&mut self, new_size: Pixels, window: &mut Window, cx: &mut App) {
 6914        let size = new_size.min(self.bounds.bottom() - RESIZE_HANDLE_SIZE - self.bounds.top());
 6915        self.bottom_dock.update(cx, |bottom_dock, cx| {
 6916            if WorkspaceSettings::get_global(cx)
 6917                .resize_all_panels_in_dock
 6918                .contains(&DockPosition::Bottom)
 6919            {
 6920                bottom_dock.resize_all_panels(Some(size), window, cx);
 6921            } else {
 6922                bottom_dock.resize_active_panel(Some(size), window, cx);
 6923            }
 6924        });
 6925    }
 6926
 6927    fn toggle_edit_predictions_all_files(
 6928        &mut self,
 6929        _: &ToggleEditPrediction,
 6930        _window: &mut Window,
 6931        cx: &mut Context<Self>,
 6932    ) {
 6933        let fs = self.project().read(cx).fs().clone();
 6934        let show_edit_predictions = all_language_settings(None, cx).show_edit_predictions(None, cx);
 6935        update_settings_file(fs, cx, move |file, _| {
 6936            file.project.all_languages.defaults.show_edit_predictions = Some(!show_edit_predictions)
 6937        });
 6938    }
 6939
 6940    pub fn show_worktree_trust_security_modal(
 6941        &mut self,
 6942        toggle: bool,
 6943        window: &mut Window,
 6944        cx: &mut Context<Self>,
 6945    ) {
 6946        if let Some(security_modal) = self.active_modal::<SecurityModal>(cx) {
 6947            if toggle {
 6948                security_modal.update(cx, |security_modal, cx| {
 6949                    security_modal.dismiss(cx);
 6950                })
 6951            } else {
 6952                security_modal.update(cx, |security_modal, cx| {
 6953                    security_modal.refresh_restricted_paths(cx);
 6954                });
 6955            }
 6956        } else {
 6957            let has_restricted_worktrees = TrustedWorktrees::try_get_global(cx)
 6958                .map(|trusted_worktrees| {
 6959                    trusted_worktrees
 6960                        .read(cx)
 6961                        .has_restricted_worktrees(&self.project().read(cx).worktree_store(), cx)
 6962                })
 6963                .unwrap_or(false);
 6964            if has_restricted_worktrees {
 6965                let project = self.project().read(cx);
 6966                let remote_host = project
 6967                    .remote_connection_options(cx)
 6968                    .map(RemoteHostLocation::from);
 6969                let worktree_store = project.worktree_store().downgrade();
 6970                self.toggle_modal(window, cx, |_, cx| {
 6971                    SecurityModal::new(worktree_store, remote_host, cx)
 6972                });
 6973            }
 6974        }
 6975    }
 6976}
 6977
 6978fn leader_border_for_pane(
 6979    follower_states: &HashMap<CollaboratorId, FollowerState>,
 6980    pane: &Entity<Pane>,
 6981    _: &Window,
 6982    cx: &App,
 6983) -> Option<Div> {
 6984    let (leader_id, _follower_state) = follower_states.iter().find_map(|(leader_id, state)| {
 6985        if state.pane() == pane {
 6986            Some((*leader_id, state))
 6987        } else {
 6988            None
 6989        }
 6990    })?;
 6991
 6992    let mut leader_color = match leader_id {
 6993        CollaboratorId::PeerId(leader_peer_id) => {
 6994            let room = ActiveCall::try_global(cx)?.read(cx).room()?.read(cx);
 6995            let leader = room.remote_participant_for_peer_id(leader_peer_id)?;
 6996
 6997            cx.theme()
 6998                .players()
 6999                .color_for_participant(leader.participant_index.0)
 7000                .cursor
 7001        }
 7002        CollaboratorId::Agent => cx.theme().players().agent().cursor,
 7003    };
 7004    leader_color.fade_out(0.3);
 7005    Some(
 7006        div()
 7007            .absolute()
 7008            .size_full()
 7009            .left_0()
 7010            .top_0()
 7011            .border_2()
 7012            .border_color(leader_color),
 7013    )
 7014}
 7015
 7016fn window_bounds_env_override() -> Option<Bounds<Pixels>> {
 7017    ZED_WINDOW_POSITION
 7018        .zip(*ZED_WINDOW_SIZE)
 7019        .map(|(position, size)| Bounds {
 7020            origin: position,
 7021            size,
 7022        })
 7023}
 7024
 7025fn open_items(
 7026    serialized_workspace: Option<SerializedWorkspace>,
 7027    mut project_paths_to_open: Vec<(PathBuf, Option<ProjectPath>)>,
 7028    window: &mut Window,
 7029    cx: &mut Context<Workspace>,
 7030) -> impl 'static + Future<Output = Result<Vec<Option<Result<Box<dyn ItemHandle>>>>>> + use<> {
 7031    let restored_items = serialized_workspace.map(|serialized_workspace| {
 7032        Workspace::load_workspace(
 7033            serialized_workspace,
 7034            project_paths_to_open
 7035                .iter()
 7036                .map(|(_, project_path)| project_path)
 7037                .cloned()
 7038                .collect(),
 7039            window,
 7040            cx,
 7041        )
 7042    });
 7043
 7044    cx.spawn_in(window, async move |workspace, cx| {
 7045        let mut opened_items = Vec::with_capacity(project_paths_to_open.len());
 7046
 7047        if let Some(restored_items) = restored_items {
 7048            let restored_items = restored_items.await?;
 7049
 7050            let restored_project_paths = restored_items
 7051                .iter()
 7052                .filter_map(|item| {
 7053                    cx.update(|_, cx| item.as_ref()?.project_path(cx))
 7054                        .ok()
 7055                        .flatten()
 7056                })
 7057                .collect::<HashSet<_>>();
 7058
 7059            for restored_item in restored_items {
 7060                opened_items.push(restored_item.map(Ok));
 7061            }
 7062
 7063            project_paths_to_open
 7064                .iter_mut()
 7065                .for_each(|(_, project_path)| {
 7066                    if let Some(project_path_to_open) = project_path
 7067                        && restored_project_paths.contains(project_path_to_open)
 7068                    {
 7069                        *project_path = None;
 7070                    }
 7071                });
 7072        } else {
 7073            for _ in 0..project_paths_to_open.len() {
 7074                opened_items.push(None);
 7075            }
 7076        }
 7077        assert!(opened_items.len() == project_paths_to_open.len());
 7078
 7079        let tasks =
 7080            project_paths_to_open
 7081                .into_iter()
 7082                .enumerate()
 7083                .map(|(ix, (abs_path, project_path))| {
 7084                    let workspace = workspace.clone();
 7085                    cx.spawn(async move |cx| {
 7086                        let file_project_path = project_path?;
 7087                        let abs_path_task = workspace.update(cx, |workspace, cx| {
 7088                            workspace.project().update(cx, |project, cx| {
 7089                                project.resolve_abs_path(abs_path.to_string_lossy().as_ref(), cx)
 7090                            })
 7091                        });
 7092
 7093                        // We only want to open file paths here. If one of the items
 7094                        // here is a directory, it was already opened further above
 7095                        // with a `find_or_create_worktree`.
 7096                        if let Ok(task) = abs_path_task
 7097                            && task.await.is_none_or(|p| p.is_file())
 7098                        {
 7099                            return Some((
 7100                                ix,
 7101                                workspace
 7102                                    .update_in(cx, |workspace, window, cx| {
 7103                                        workspace.open_path(
 7104                                            file_project_path,
 7105                                            None,
 7106                                            true,
 7107                                            window,
 7108                                            cx,
 7109                                        )
 7110                                    })
 7111                                    .log_err()?
 7112                                    .await,
 7113                            ));
 7114                        }
 7115                        None
 7116                    })
 7117                });
 7118
 7119        let tasks = tasks.collect::<Vec<_>>();
 7120
 7121        let tasks = futures::future::join_all(tasks);
 7122        for (ix, path_open_result) in tasks.await.into_iter().flatten() {
 7123            opened_items[ix] = Some(path_open_result);
 7124        }
 7125
 7126        Ok(opened_items)
 7127    })
 7128}
 7129
 7130enum ActivateInDirectionTarget {
 7131    Pane(Entity<Pane>),
 7132    Dock(Entity<Dock>),
 7133}
 7134
 7135fn notify_if_database_failed(window: WindowHandle<MultiWorkspace>, cx: &mut AsyncApp) {
 7136    window
 7137        .update(cx, |multi_workspace, _, cx| {
 7138            let workspace = multi_workspace.workspace().clone();
 7139            workspace.update(cx, |workspace, cx| {
 7140                if (*db::ALL_FILE_DB_FAILED).load(std::sync::atomic::Ordering::Acquire) {
 7141                    struct DatabaseFailedNotification;
 7142
 7143                    workspace.show_notification(
 7144                        NotificationId::unique::<DatabaseFailedNotification>(),
 7145                        cx,
 7146                        |cx| {
 7147                            cx.new(|cx| {
 7148                                MessageNotification::new("Failed to load the database file.", cx)
 7149                                    .primary_message("File an Issue")
 7150                                    .primary_icon(IconName::Plus)
 7151                                    .primary_on_click(|window, cx| {
 7152                                        window.dispatch_action(Box::new(FileBugReport), cx)
 7153                                    })
 7154                            })
 7155                        },
 7156                    );
 7157                }
 7158            });
 7159        })
 7160        .log_err();
 7161}
 7162
 7163fn px_with_ui_font_fallback(val: u32, cx: &Context<Workspace>) -> Pixels {
 7164    if val == 0 {
 7165        ThemeSettings::get_global(cx).ui_font_size(cx)
 7166    } else {
 7167        px(val as f32)
 7168    }
 7169}
 7170
 7171fn adjust_active_dock_size_by_px(
 7172    px: Pixels,
 7173    workspace: &mut Workspace,
 7174    window: &mut Window,
 7175    cx: &mut Context<Workspace>,
 7176) {
 7177    let Some(active_dock) = workspace
 7178        .all_docks()
 7179        .into_iter()
 7180        .find(|dock| dock.focus_handle(cx).contains_focused(window, cx))
 7181    else {
 7182        return;
 7183    };
 7184    let dock = active_dock.read(cx);
 7185    let Some(panel_size) = dock.active_panel_size(window, cx) else {
 7186        return;
 7187    };
 7188    let dock_pos = dock.position();
 7189    workspace.adjust_dock_size_by_px(panel_size, dock_pos, px, window, cx);
 7190}
 7191
 7192fn adjust_open_docks_size_by_px(
 7193    px: Pixels,
 7194    workspace: &mut Workspace,
 7195    window: &mut Window,
 7196    cx: &mut Context<Workspace>,
 7197) {
 7198    let docks = workspace
 7199        .all_docks()
 7200        .into_iter()
 7201        .filter_map(|dock| {
 7202            if dock.read(cx).is_open() {
 7203                let dock = dock.read(cx);
 7204                let panel_size = dock.active_panel_size(window, cx)?;
 7205                let dock_pos = dock.position();
 7206                Some((panel_size, dock_pos, px))
 7207            } else {
 7208                None
 7209            }
 7210        })
 7211        .collect::<Vec<_>>();
 7212
 7213    docks
 7214        .into_iter()
 7215        .for_each(|(panel_size, dock_pos, offset)| {
 7216            workspace.adjust_dock_size_by_px(panel_size, dock_pos, offset, window, cx);
 7217        });
 7218}
 7219
 7220impl Focusable for Workspace {
 7221    fn focus_handle(&self, cx: &App) -> FocusHandle {
 7222        self.active_pane.focus_handle(cx)
 7223    }
 7224}
 7225
 7226#[derive(Clone)]
 7227struct DraggedDock(DockPosition);
 7228
 7229impl Render for DraggedDock {
 7230    fn render(&mut self, _window: &mut Window, _cx: &mut Context<Self>) -> impl IntoElement {
 7231        gpui::Empty
 7232    }
 7233}
 7234
 7235impl Render for Workspace {
 7236    fn render(&mut self, window: &mut Window, cx: &mut Context<Self>) -> impl IntoElement {
 7237        static FIRST_PAINT: AtomicBool = AtomicBool::new(true);
 7238        if FIRST_PAINT.swap(false, std::sync::atomic::Ordering::Relaxed) {
 7239            log::info!("Rendered first frame");
 7240        }
 7241        let mut context = KeyContext::new_with_defaults();
 7242        context.add("Workspace");
 7243        context.set("keyboard_layout", cx.keyboard_layout().name().to_string());
 7244        if let Some(status) = self
 7245            .debugger_provider
 7246            .as_ref()
 7247            .and_then(|provider| provider.active_thread_state(cx))
 7248        {
 7249            match status {
 7250                ThreadStatus::Running | ThreadStatus::Stepping => {
 7251                    context.add("debugger_running");
 7252                }
 7253                ThreadStatus::Stopped => context.add("debugger_stopped"),
 7254                ThreadStatus::Exited | ThreadStatus::Ended => {}
 7255            }
 7256        }
 7257
 7258        if self.left_dock.read(cx).is_open() {
 7259            if let Some(active_panel) = self.left_dock.read(cx).active_panel() {
 7260                context.set("left_dock", active_panel.panel_key());
 7261            }
 7262        }
 7263
 7264        if self.right_dock.read(cx).is_open() {
 7265            if let Some(active_panel) = self.right_dock.read(cx).active_panel() {
 7266                context.set("right_dock", active_panel.panel_key());
 7267            }
 7268        }
 7269
 7270        if self.bottom_dock.read(cx).is_open() {
 7271            if let Some(active_panel) = self.bottom_dock.read(cx).active_panel() {
 7272                context.set("bottom_dock", active_panel.panel_key());
 7273            }
 7274        }
 7275
 7276        let centered_layout = self.centered_layout
 7277            && self.center.panes().len() == 1
 7278            && self.active_item(cx).is_some();
 7279        let render_padding = |size| {
 7280            (size > 0.0).then(|| {
 7281                div()
 7282                    .h_full()
 7283                    .w(relative(size))
 7284                    .bg(cx.theme().colors().editor_background)
 7285                    .border_color(cx.theme().colors().pane_group_border)
 7286            })
 7287        };
 7288        let paddings = if centered_layout {
 7289            let settings = WorkspaceSettings::get_global(cx).centered_layout;
 7290            (
 7291                render_padding(Self::adjust_padding(
 7292                    settings.left_padding.map(|padding| padding.0),
 7293                )),
 7294                render_padding(Self::adjust_padding(
 7295                    settings.right_padding.map(|padding| padding.0),
 7296                )),
 7297            )
 7298        } else {
 7299            (None, None)
 7300        };
 7301        let ui_font = theme::setup_ui_font(window, cx);
 7302
 7303        let theme = cx.theme().clone();
 7304        let colors = theme.colors();
 7305        let notification_entities = self
 7306            .notifications
 7307            .iter()
 7308            .map(|(_, notification)| notification.entity_id())
 7309            .collect::<Vec<_>>();
 7310        let bottom_dock_layout = WorkspaceSettings::get_global(cx).bottom_dock_layout;
 7311
 7312        self.actions(div(), window, cx)
 7313            .key_context(context)
 7314            .relative()
 7315            .size_full()
 7316            .flex()
 7317            .flex_col()
 7318            .font(ui_font)
 7319            .gap_0()
 7320                .justify_start()
 7321                .items_start()
 7322                .text_color(colors.text)
 7323                .overflow_hidden()
 7324                .children(self.titlebar_item.clone())
 7325                .on_modifiers_changed(move |_, _, cx| {
 7326                    for &id in &notification_entities {
 7327                        cx.notify(id);
 7328                    }
 7329                })
 7330                .child(
 7331                    div()
 7332                        .size_full()
 7333                        .relative()
 7334                        .flex_1()
 7335                        .flex()
 7336                        .flex_col()
 7337                        .child(
 7338                            div()
 7339                                .id("workspace")
 7340                                .bg(colors.background)
 7341                                .relative()
 7342                                .flex_1()
 7343                                .w_full()
 7344                                .flex()
 7345                                .flex_col()
 7346                                .overflow_hidden()
 7347                                .border_t_1()
 7348                                .border_b_1()
 7349                                .border_color(colors.border)
 7350                                .child({
 7351                                    let this = cx.entity();
 7352                                    canvas(
 7353                                        move |bounds, window, cx| {
 7354                                            this.update(cx, |this, cx| {
 7355                                                let bounds_changed = this.bounds != bounds;
 7356                                                this.bounds = bounds;
 7357
 7358                                                if bounds_changed {
 7359                                                    this.left_dock.update(cx, |dock, cx| {
 7360                                                        dock.clamp_panel_size(
 7361                                                            bounds.size.width,
 7362                                                            window,
 7363                                                            cx,
 7364                                                        )
 7365                                                    });
 7366
 7367                                                    this.right_dock.update(cx, |dock, cx| {
 7368                                                        dock.clamp_panel_size(
 7369                                                            bounds.size.width,
 7370                                                            window,
 7371                                                            cx,
 7372                                                        )
 7373                                                    });
 7374
 7375                                                    this.bottom_dock.update(cx, |dock, cx| {
 7376                                                        dock.clamp_panel_size(
 7377                                                            bounds.size.height,
 7378                                                            window,
 7379                                                            cx,
 7380                                                        )
 7381                                                    });
 7382                                                }
 7383                                            })
 7384                                        },
 7385                                        |_, _, _, _| {},
 7386                                    )
 7387                                    .absolute()
 7388                                    .size_full()
 7389                                })
 7390                                .when(self.zoomed.is_none(), |this| {
 7391                                    this.on_drag_move(cx.listener(
 7392                                        move |workspace,
 7393                                              e: &DragMoveEvent<DraggedDock>,
 7394                                              window,
 7395                                              cx| {
 7396                                            if workspace.previous_dock_drag_coordinates
 7397                                                != Some(e.event.position)
 7398                                            {
 7399                                                workspace.previous_dock_drag_coordinates =
 7400                                                    Some(e.event.position);
 7401                                                match e.drag(cx).0 {
 7402                                                    DockPosition::Left => {
 7403                                                        workspace.resize_left_dock(
 7404                                                            e.event.position.x
 7405                                                                - workspace.bounds.left(),
 7406                                                            window,
 7407                                                            cx,
 7408                                                        );
 7409                                                    }
 7410                                                    DockPosition::Right => {
 7411                                                        workspace.resize_right_dock(
 7412                                                            workspace.bounds.right()
 7413                                                                - e.event.position.x,
 7414                                                            window,
 7415                                                            cx,
 7416                                                        );
 7417                                                    }
 7418                                                    DockPosition::Bottom => {
 7419                                                        workspace.resize_bottom_dock(
 7420                                                            workspace.bounds.bottom()
 7421                                                                - e.event.position.y,
 7422                                                            window,
 7423                                                            cx,
 7424                                                        );
 7425                                                    }
 7426                                                };
 7427                                                workspace.serialize_workspace(window, cx);
 7428                                            }
 7429                                        },
 7430                                    ))
 7431
 7432                                })
 7433                                .child({
 7434                                    match bottom_dock_layout {
 7435                                        BottomDockLayout::Full => div()
 7436                                            .flex()
 7437                                            .flex_col()
 7438                                            .h_full()
 7439                                            .child(
 7440                                                div()
 7441                                                    .flex()
 7442                                                    .flex_row()
 7443                                                    .flex_1()
 7444                                                    .overflow_hidden()
 7445                                                    .children(self.render_dock(
 7446                                                        DockPosition::Left,
 7447                                                        &self.left_dock,
 7448                                                        window,
 7449                                                        cx,
 7450                                                    ))
 7451
 7452                                                    .child(
 7453                                                        div()
 7454                                                            .flex()
 7455                                                            .flex_col()
 7456                                                            .flex_1()
 7457                                                            .overflow_hidden()
 7458                                                            .child(
 7459                                                                h_flex()
 7460                                                                    .flex_1()
 7461                                                                    .when_some(
 7462                                                                        paddings.0,
 7463                                                                        |this, p| {
 7464                                                                            this.child(
 7465                                                                                p.border_r_1(),
 7466                                                                            )
 7467                                                                        },
 7468                                                                    )
 7469                                                                    .child(self.center.render(
 7470                                                                        self.zoomed.as_ref(),
 7471                                                                        &PaneRenderContext {
 7472                                                                            follower_states:
 7473                                                                                &self.follower_states,
 7474                                                                            active_call: self.active_call(),
 7475                                                                            active_pane: &self.active_pane,
 7476                                                                            app_state: &self.app_state,
 7477                                                                            project: &self.project,
 7478                                                                            workspace: &self.weak_self,
 7479                                                                        },
 7480                                                                        window,
 7481                                                                        cx,
 7482                                                                    ))
 7483                                                                    .when_some(
 7484                                                                        paddings.1,
 7485                                                                        |this, p| {
 7486                                                                            this.child(
 7487                                                                                p.border_l_1(),
 7488                                                                            )
 7489                                                                        },
 7490                                                                    ),
 7491                                                            ),
 7492                                                    )
 7493
 7494                                                    .children(self.render_dock(
 7495                                                        DockPosition::Right,
 7496                                                        &self.right_dock,
 7497                                                        window,
 7498                                                        cx,
 7499                                                    )),
 7500                                            )
 7501                                            .child(div().w_full().children(self.render_dock(
 7502                                                DockPosition::Bottom,
 7503                                                &self.bottom_dock,
 7504                                                window,
 7505                                                cx
 7506                                            ))),
 7507
 7508                                        BottomDockLayout::LeftAligned => div()
 7509                                            .flex()
 7510                                            .flex_row()
 7511                                            .h_full()
 7512                                            .child(
 7513                                                div()
 7514                                                    .flex()
 7515                                                    .flex_col()
 7516                                                    .flex_1()
 7517                                                    .h_full()
 7518                                                    .child(
 7519                                                        div()
 7520                                                            .flex()
 7521                                                            .flex_row()
 7522                                                            .flex_1()
 7523                                                            .children(self.render_dock(DockPosition::Left, &self.left_dock, window, cx))
 7524
 7525                                                            .child(
 7526                                                                div()
 7527                                                                    .flex()
 7528                                                                    .flex_col()
 7529                                                                    .flex_1()
 7530                                                                    .overflow_hidden()
 7531                                                                    .child(
 7532                                                                        h_flex()
 7533                                                                            .flex_1()
 7534                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7535                                                                            .child(self.center.render(
 7536                                                                                self.zoomed.as_ref(),
 7537                                                                                &PaneRenderContext {
 7538                                                                                    follower_states:
 7539                                                                                        &self.follower_states,
 7540                                                                                    active_call: self.active_call(),
 7541                                                                                    active_pane: &self.active_pane,
 7542                                                                                    app_state: &self.app_state,
 7543                                                                                    project: &self.project,
 7544                                                                                    workspace: &self.weak_self,
 7545                                                                                },
 7546                                                                                window,
 7547                                                                                cx,
 7548                                                                            ))
 7549                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7550                                                                    )
 7551                                                            )
 7552
 7553                                                    )
 7554                                                    .child(
 7555                                                        div()
 7556                                                            .w_full()
 7557                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7558                                                    ),
 7559                                            )
 7560                                            .children(self.render_dock(
 7561                                                DockPosition::Right,
 7562                                                &self.right_dock,
 7563                                                window,
 7564                                                cx,
 7565                                            )),
 7566
 7567                                        BottomDockLayout::RightAligned => div()
 7568                                            .flex()
 7569                                            .flex_row()
 7570                                            .h_full()
 7571                                            .children(self.render_dock(
 7572                                                DockPosition::Left,
 7573                                                &self.left_dock,
 7574                                                window,
 7575                                                cx,
 7576                                            ))
 7577
 7578                                            .child(
 7579                                                div()
 7580                                                    .flex()
 7581                                                    .flex_col()
 7582                                                    .flex_1()
 7583                                                    .h_full()
 7584                                                    .child(
 7585                                                        div()
 7586                                                            .flex()
 7587                                                            .flex_row()
 7588                                                            .flex_1()
 7589                                                            .child(
 7590                                                                div()
 7591                                                                    .flex()
 7592                                                                    .flex_col()
 7593                                                                    .flex_1()
 7594                                                                    .overflow_hidden()
 7595                                                                    .child(
 7596                                                                        h_flex()
 7597                                                                            .flex_1()
 7598                                                                            .when_some(paddings.0, |this, p| this.child(p.border_r_1()))
 7599                                                                            .child(self.center.render(
 7600                                                                                self.zoomed.as_ref(),
 7601                                                                                &PaneRenderContext {
 7602                                                                                    follower_states:
 7603                                                                                        &self.follower_states,
 7604                                                                                    active_call: self.active_call(),
 7605                                                                                    active_pane: &self.active_pane,
 7606                                                                                    app_state: &self.app_state,
 7607                                                                                    project: &self.project,
 7608                                                                                    workspace: &self.weak_self,
 7609                                                                                },
 7610                                                                                window,
 7611                                                                                cx,
 7612                                                                            ))
 7613                                                                            .when_some(paddings.1, |this, p| this.child(p.border_l_1())),
 7614                                                                    )
 7615                                                            )
 7616
 7617                                                            .children(self.render_dock(DockPosition::Right, &self.right_dock, window, cx))
 7618                                                    )
 7619                                                    .child(
 7620                                                        div()
 7621                                                            .w_full()
 7622                                                            .children(self.render_dock(DockPosition::Bottom, &self.bottom_dock, window, cx))
 7623                                                    ),
 7624                                            ),
 7625
 7626                                        BottomDockLayout::Contained => div()
 7627                                            .flex()
 7628                                            .flex_row()
 7629                                            .h_full()
 7630                                            .children(self.render_dock(
 7631                                                DockPosition::Left,
 7632                                                &self.left_dock,
 7633                                                window,
 7634                                                cx,
 7635                                            ))
 7636
 7637                                            .child(
 7638                                                div()
 7639                                                    .flex()
 7640                                                    .flex_col()
 7641                                                    .flex_1()
 7642                                                    .overflow_hidden()
 7643                                                    .child(
 7644                                                        h_flex()
 7645                                                            .flex_1()
 7646                                                            .when_some(paddings.0, |this, p| {
 7647                                                                this.child(p.border_r_1())
 7648                                                            })
 7649                                                            .child(self.center.render(
 7650                                                                self.zoomed.as_ref(),
 7651                                                                &PaneRenderContext {
 7652                                                                    follower_states:
 7653                                                                        &self.follower_states,
 7654                                                                    active_call: self.active_call(),
 7655                                                                    active_pane: &self.active_pane,
 7656                                                                    app_state: &self.app_state,
 7657                                                                    project: &self.project,
 7658                                                                    workspace: &self.weak_self,
 7659                                                                },
 7660                                                                window,
 7661                                                                cx,
 7662                                                            ))
 7663                                                            .when_some(paddings.1, |this, p| {
 7664                                                                this.child(p.border_l_1())
 7665                                                            }),
 7666                                                    )
 7667                                                    .children(self.render_dock(
 7668                                                        DockPosition::Bottom,
 7669                                                        &self.bottom_dock,
 7670                                                        window,
 7671                                                        cx,
 7672                                                    )),
 7673                                            )
 7674
 7675                                            .children(self.render_dock(
 7676                                                DockPosition::Right,
 7677                                                &self.right_dock,
 7678                                                window,
 7679                                                cx,
 7680                                            )),
 7681                                    }
 7682                                })
 7683                                .children(self.zoomed.as_ref().and_then(|view| {
 7684                                    let zoomed_view = view.upgrade()?;
 7685                                    let div = div()
 7686                                        .occlude()
 7687                                        .absolute()
 7688                                        .overflow_hidden()
 7689                                        .border_color(colors.border)
 7690                                        .bg(colors.background)
 7691                                        .child(zoomed_view)
 7692                                        .inset_0()
 7693                                        .shadow_lg();
 7694
 7695                                    if !WorkspaceSettings::get_global(cx).zoomed_padding {
 7696                                       return Some(div);
 7697                                    }
 7698
 7699                                    Some(match self.zoomed_position {
 7700                                        Some(DockPosition::Left) => div.right_2().border_r_1(),
 7701                                        Some(DockPosition::Right) => div.left_2().border_l_1(),
 7702                                        Some(DockPosition::Bottom) => div.top_2().border_t_1(),
 7703                                        None => {
 7704                                            div.top_2().bottom_2().left_2().right_2().border_1()
 7705                                        }
 7706                                    })
 7707                                }))
 7708                                .children(self.render_notifications(window, cx)),
 7709                        )
 7710                        .when(self.status_bar_visible(cx), |parent| {
 7711                            parent.child(self.status_bar.clone())
 7712                        })
 7713                        .child(self.modal_layer.clone())
 7714                        .child(self.toast_layer.clone()),
 7715                )
 7716    }
 7717}
 7718
 7719impl WorkspaceStore {
 7720    pub fn new(client: Arc<Client>, cx: &mut Context<Self>) -> Self {
 7721        Self {
 7722            workspaces: Default::default(),
 7723            _subscriptions: vec![
 7724                client.add_request_handler(cx.weak_entity(), Self::handle_follow),
 7725                client.add_message_handler(cx.weak_entity(), Self::handle_update_followers),
 7726            ],
 7727            client,
 7728        }
 7729    }
 7730
 7731    pub fn update_followers(
 7732        &self,
 7733        project_id: Option<u64>,
 7734        update: proto::update_followers::Variant,
 7735        cx: &App,
 7736    ) -> Option<()> {
 7737        let active_call = ActiveCall::try_global(cx)?;
 7738        let room_id = active_call.read(cx).room()?.read(cx).id();
 7739        self.client
 7740            .send(proto::UpdateFollowers {
 7741                room_id,
 7742                project_id,
 7743                variant: Some(update),
 7744            })
 7745            .log_err()
 7746    }
 7747
 7748    pub async fn handle_follow(
 7749        this: Entity<Self>,
 7750        envelope: TypedEnvelope<proto::Follow>,
 7751        mut cx: AsyncApp,
 7752    ) -> Result<proto::FollowResponse> {
 7753        this.update(&mut cx, |this, cx| {
 7754            let follower = Follower {
 7755                project_id: envelope.payload.project_id,
 7756                peer_id: envelope.original_sender_id()?,
 7757            };
 7758
 7759            let mut response = proto::FollowResponse::default();
 7760
 7761            this.workspaces.retain(|(window_handle, weak_workspace)| {
 7762                let Some(workspace) = weak_workspace.upgrade() else {
 7763                    return false;
 7764                };
 7765                window_handle
 7766                    .update(cx, |_, window, cx| {
 7767                        workspace.update(cx, |workspace, cx| {
 7768                            let handler_response =
 7769                                workspace.handle_follow(follower.project_id, window, cx);
 7770                            if let Some(active_view) = handler_response.active_view
 7771                                && workspace.project.read(cx).remote_id() == follower.project_id
 7772                            {
 7773                                response.active_view = Some(active_view)
 7774                            }
 7775                        });
 7776                    })
 7777                    .is_ok()
 7778            });
 7779
 7780            Ok(response)
 7781        })
 7782    }
 7783
 7784    async fn handle_update_followers(
 7785        this: Entity<Self>,
 7786        envelope: TypedEnvelope<proto::UpdateFollowers>,
 7787        mut cx: AsyncApp,
 7788    ) -> Result<()> {
 7789        let leader_id = envelope.original_sender_id()?;
 7790        let update = envelope.payload;
 7791
 7792        this.update(&mut cx, |this, cx| {
 7793            this.workspaces.retain(|(window_handle, weak_workspace)| {
 7794                let Some(workspace) = weak_workspace.upgrade() else {
 7795                    return false;
 7796                };
 7797                window_handle
 7798                    .update(cx, |_, window, cx| {
 7799                        workspace.update(cx, |workspace, cx| {
 7800                            let project_id = workspace.project.read(cx).remote_id();
 7801                            if update.project_id != project_id && update.project_id.is_some() {
 7802                                return;
 7803                            }
 7804                            workspace.handle_update_followers(
 7805                                leader_id,
 7806                                update.clone(),
 7807                                window,
 7808                                cx,
 7809                            );
 7810                        });
 7811                    })
 7812                    .is_ok()
 7813            });
 7814            Ok(())
 7815        })
 7816    }
 7817
 7818    pub fn workspaces(&self) -> impl Iterator<Item = &WeakEntity<Workspace>> {
 7819        self.workspaces.iter().map(|(_, weak)| weak)
 7820    }
 7821
 7822    pub fn workspaces_with_windows(
 7823        &self,
 7824    ) -> impl Iterator<Item = (gpui::AnyWindowHandle, &WeakEntity<Workspace>)> {
 7825        self.workspaces.iter().map(|(window, weak)| (*window, weak))
 7826    }
 7827}
 7828
 7829impl ViewId {
 7830    pub(crate) fn from_proto(message: proto::ViewId) -> Result<Self> {
 7831        Ok(Self {
 7832            creator: message
 7833                .creator
 7834                .map(CollaboratorId::PeerId)
 7835                .context("creator is missing")?,
 7836            id: message.id,
 7837        })
 7838    }
 7839
 7840    pub(crate) fn to_proto(self) -> Option<proto::ViewId> {
 7841        if let CollaboratorId::PeerId(peer_id) = self.creator {
 7842            Some(proto::ViewId {
 7843                creator: Some(peer_id),
 7844                id: self.id,
 7845            })
 7846        } else {
 7847            None
 7848        }
 7849    }
 7850}
 7851
 7852impl FollowerState {
 7853    fn pane(&self) -> &Entity<Pane> {
 7854        self.dock_pane.as_ref().unwrap_or(&self.center_pane)
 7855    }
 7856}
 7857
 7858pub trait WorkspaceHandle {
 7859    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath>;
 7860}
 7861
 7862impl WorkspaceHandle for Entity<Workspace> {
 7863    fn file_project_paths(&self, cx: &App) -> Vec<ProjectPath> {
 7864        self.read(cx)
 7865            .worktrees(cx)
 7866            .flat_map(|worktree| {
 7867                let worktree_id = worktree.read(cx).id();
 7868                worktree.read(cx).files(true, 0).map(move |f| ProjectPath {
 7869                    worktree_id,
 7870                    path: f.path.clone(),
 7871                })
 7872            })
 7873            .collect::<Vec<_>>()
 7874    }
 7875}
 7876
 7877pub async fn last_opened_workspace_location(
 7878    fs: &dyn fs::Fs,
 7879) -> Option<(WorkspaceId, SerializedWorkspaceLocation, PathList)> {
 7880    DB.last_workspace(fs).await.log_err().flatten()
 7881}
 7882
 7883pub async fn last_session_workspace_locations(
 7884    last_session_id: &str,
 7885    last_session_window_stack: Option<Vec<WindowId>>,
 7886    fs: &dyn fs::Fs,
 7887) -> Option<Vec<SessionWorkspace>> {
 7888    DB.last_session_workspace_locations(last_session_id, last_session_window_stack, fs)
 7889        .await
 7890        .log_err()
 7891}
 7892
 7893pub async fn restore_multiworkspace(
 7894    multi_workspace: SerializedMultiWorkspace,
 7895    app_state: Arc<AppState>,
 7896    cx: &mut AsyncApp,
 7897) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 7898    let SerializedMultiWorkspace { workspaces, state } = multi_workspace;
 7899    let mut group_iter = workspaces.into_iter();
 7900    let first = group_iter
 7901        .next()
 7902        .context("window group must not be empty")?;
 7903
 7904    let window_handle = if first.paths.is_empty() {
 7905        cx.update(|cx| open_workspace_by_id(first.workspace_id, app_state.clone(), None, cx))
 7906            .await?
 7907    } else {
 7908        let (window, _items) = cx
 7909            .update(|cx| {
 7910                Workspace::new_local(
 7911                    first.paths.paths().to_vec(),
 7912                    app_state.clone(),
 7913                    None,
 7914                    None,
 7915                    None,
 7916                    cx,
 7917                )
 7918            })
 7919            .await?;
 7920        window
 7921    };
 7922
 7923    for session_workspace in group_iter {
 7924        if session_workspace.paths.is_empty() {
 7925            cx.update(|cx| {
 7926                open_workspace_by_id(
 7927                    session_workspace.workspace_id,
 7928                    app_state.clone(),
 7929                    Some(window_handle),
 7930                    cx,
 7931                )
 7932            })
 7933            .await?;
 7934        } else {
 7935            cx.update(|cx| {
 7936                Workspace::new_local(
 7937                    session_workspace.paths.paths().to_vec(),
 7938                    app_state.clone(),
 7939                    Some(window_handle),
 7940                    None,
 7941                    None,
 7942                    cx,
 7943                )
 7944            })
 7945            .await?;
 7946        }
 7947    }
 7948
 7949    if let Some(target_id) = state.active_workspace_id {
 7950        window_handle
 7951            .update(cx, |multi_workspace, window, cx| {
 7952                let target_index = multi_workspace
 7953                    .workspaces()
 7954                    .iter()
 7955                    .position(|ws| ws.read(cx).database_id() == Some(target_id));
 7956                if let Some(index) = target_index {
 7957                    multi_workspace.activate_index(index, window, cx);
 7958                } else if !multi_workspace.workspaces().is_empty() {
 7959                    multi_workspace.activate_index(0, window, cx);
 7960                }
 7961            })
 7962            .ok();
 7963    } else {
 7964        window_handle
 7965            .update(cx, |multi_workspace, window, cx| {
 7966                if !multi_workspace.workspaces().is_empty() {
 7967                    multi_workspace.activate_index(0, window, cx);
 7968                }
 7969            })
 7970            .ok();
 7971    }
 7972
 7973    if state.sidebar_open {
 7974        window_handle
 7975            .update(cx, |multi_workspace, window, cx| {
 7976                multi_workspace.open_sidebar(window, cx);
 7977            })
 7978            .ok();
 7979    }
 7980
 7981    window_handle
 7982        .update(cx, |_, window, _cx| {
 7983            window.activate_window();
 7984        })
 7985        .ok();
 7986
 7987    Ok(window_handle)
 7988}
 7989
 7990actions!(
 7991    collab,
 7992    [
 7993        /// Opens the channel notes for the current call.
 7994        ///
 7995        /// Use `collab_panel::OpenSelectedChannelNotes` to open the channel notes for the selected
 7996        /// channel in the collab panel.
 7997        ///
 7998        /// If you want to open a specific channel, use `zed::OpenZedUrl` with a channel notes URL -
 7999        /// can be copied via "Copy link to section" in the context menu of the channel notes
 8000        /// buffer. These URLs look like `https://zed.dev/channel/channel-name-CHANNEL_ID/notes`.
 8001        OpenChannelNotes,
 8002        /// Mutes your microphone.
 8003        Mute,
 8004        /// Deafens yourself (mute both microphone and speakers).
 8005        Deafen,
 8006        /// Leaves the current call.
 8007        LeaveCall,
 8008        /// Shares the current project with collaborators.
 8009        ShareProject,
 8010        /// Shares your screen with collaborators.
 8011        ScreenShare,
 8012        /// Copies the current room name and session id for debugging purposes.
 8013        CopyRoomId,
 8014    ]
 8015);
 8016actions!(
 8017    zed,
 8018    [
 8019        /// Opens the Zed log file.
 8020        OpenLog,
 8021        /// Reveals the Zed log file in the system file manager.
 8022        RevealLogInFileManager
 8023    ]
 8024);
 8025
 8026async fn join_channel_internal(
 8027    channel_id: ChannelId,
 8028    app_state: &Arc<AppState>,
 8029    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8030    requesting_workspace: Option<WeakEntity<Workspace>>,
 8031    active_call: &Entity<ActiveCall>,
 8032    cx: &mut AsyncApp,
 8033) -> Result<bool> {
 8034    let (should_prompt, open_room) = active_call.update(cx, |active_call, cx| {
 8035        let Some(room) = active_call.room().map(|room| room.read(cx)) else {
 8036            return (false, None);
 8037        };
 8038
 8039        let already_in_channel = room.channel_id() == Some(channel_id);
 8040        let should_prompt = room.is_sharing_project()
 8041            && !room.remote_participants().is_empty()
 8042            && !already_in_channel;
 8043        let open_room = if already_in_channel {
 8044            active_call.room().cloned()
 8045        } else {
 8046            None
 8047        };
 8048        (should_prompt, open_room)
 8049    });
 8050
 8051    if let Some(room) = open_room {
 8052        let task = room.update(cx, |room, cx| {
 8053            if let Some((project, host)) = room.most_active_project(cx) {
 8054                return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8055            }
 8056
 8057            None
 8058        });
 8059        if let Some(task) = task {
 8060            task.await?;
 8061        }
 8062        return anyhow::Ok(true);
 8063    }
 8064
 8065    if should_prompt {
 8066        if let Some(multi_workspace) = requesting_window {
 8067            let answer = multi_workspace
 8068                .update(cx, |_, window, cx| {
 8069                    window.prompt(
 8070                        PromptLevel::Warning,
 8071                        "Do you want to switch channels?",
 8072                        Some("Leaving this call will unshare your current project."),
 8073                        &["Yes, Join Channel", "Cancel"],
 8074                        cx,
 8075                    )
 8076                })?
 8077                .await;
 8078
 8079            if answer == Ok(1) {
 8080                return Ok(false);
 8081            }
 8082        } else {
 8083            return Ok(false); // unreachable!() hopefully
 8084        }
 8085    }
 8086
 8087    let client = cx.update(|cx| active_call.read(cx).client());
 8088
 8089    let mut client_status = client.status();
 8090
 8091    // this loop will terminate within client::CONNECTION_TIMEOUT seconds.
 8092    'outer: loop {
 8093        let Some(status) = client_status.recv().await else {
 8094            anyhow::bail!("error connecting");
 8095        };
 8096
 8097        match status {
 8098            Status::Connecting
 8099            | Status::Authenticating
 8100            | Status::Authenticated
 8101            | Status::Reconnecting
 8102            | Status::Reauthenticating
 8103            | Status::Reauthenticated => continue,
 8104            Status::Connected { .. } => break 'outer,
 8105            Status::SignedOut | Status::AuthenticationError => {
 8106                return Err(ErrorCode::SignedOut.into());
 8107            }
 8108            Status::UpgradeRequired => return Err(ErrorCode::UpgradeRequired.into()),
 8109            Status::ConnectionError | Status::ConnectionLost | Status::ReconnectionError { .. } => {
 8110                return Err(ErrorCode::Disconnected.into());
 8111            }
 8112        }
 8113    }
 8114
 8115    let room = active_call
 8116        .update(cx, |active_call, cx| {
 8117            active_call.join_channel(channel_id, cx)
 8118        })
 8119        .await?;
 8120
 8121    let Some(room) = room else {
 8122        return anyhow::Ok(true);
 8123    };
 8124
 8125    room.update(cx, |room, _| room.room_update_completed())
 8126        .await;
 8127
 8128    let task = room.update(cx, |room, cx| {
 8129        if let Some((project, host)) = room.most_active_project(cx) {
 8130            return Some(join_in_room_project(project, host, app_state.clone(), cx));
 8131        }
 8132
 8133        // If you are the first to join a channel, see if you should share your project.
 8134        if room.remote_participants().is_empty()
 8135            && !room.local_participant_is_guest()
 8136            && let Some(workspace) = requesting_workspace.as_ref().and_then(|w| w.upgrade())
 8137        {
 8138            let project = workspace.update(cx, |workspace, cx| {
 8139                let project = workspace.project.read(cx);
 8140
 8141                if !CallSettings::get_global(cx).share_on_join {
 8142                    return None;
 8143                }
 8144
 8145                if (project.is_local() || project.is_via_remote_server())
 8146                    && project.visible_worktrees(cx).any(|tree| {
 8147                        tree.read(cx)
 8148                            .root_entry()
 8149                            .is_some_and(|entry| entry.is_dir())
 8150                    })
 8151                {
 8152                    Some(workspace.project.clone())
 8153                } else {
 8154                    None
 8155                }
 8156            });
 8157            if let Some(project) = project {
 8158                return Some(cx.spawn(async move |room, cx| {
 8159                    room.update(cx, |room, cx| room.share_project(project, cx))?
 8160                        .await?;
 8161                    Ok(())
 8162                }));
 8163            }
 8164        }
 8165
 8166        None
 8167    });
 8168    if let Some(task) = task {
 8169        task.await?;
 8170        return anyhow::Ok(true);
 8171    }
 8172    anyhow::Ok(false)
 8173}
 8174
 8175pub fn join_channel(
 8176    channel_id: ChannelId,
 8177    app_state: Arc<AppState>,
 8178    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8179    requesting_workspace: Option<WeakEntity<Workspace>>,
 8180    cx: &mut App,
 8181) -> Task<Result<()>> {
 8182    let active_call = ActiveCall::global(cx);
 8183    cx.spawn(async move |cx| {
 8184        let result = join_channel_internal(
 8185            channel_id,
 8186            &app_state,
 8187            requesting_window,
 8188            requesting_workspace,
 8189            &active_call,
 8190            cx,
 8191        )
 8192        .await;
 8193
 8194        // join channel succeeded, and opened a window
 8195        if matches!(result, Ok(true)) {
 8196            return anyhow::Ok(());
 8197        }
 8198
 8199        // find an existing workspace to focus and show call controls
 8200        let mut active_window = requesting_window.or_else(|| activate_any_workspace_window(cx));
 8201        if active_window.is_none() {
 8202            // no open workspaces, make one to show the error in (blergh)
 8203            let (window_handle, _) = cx
 8204                .update(|cx| {
 8205                    Workspace::new_local(
 8206                        vec![],
 8207                        app_state.clone(),
 8208                        requesting_window,
 8209                        None,
 8210                        None,
 8211                        cx,
 8212                    )
 8213                })
 8214                .await?;
 8215
 8216            window_handle
 8217                .update(cx, |_, window, _cx| {
 8218                    window.activate_window();
 8219                })
 8220                .ok();
 8221
 8222            if result.is_ok() {
 8223                cx.update(|cx| {
 8224                    cx.dispatch_action(&OpenChannelNotes);
 8225                });
 8226            }
 8227
 8228            active_window = Some(window_handle);
 8229        }
 8230
 8231        if let Err(err) = result {
 8232            log::error!("failed to join channel: {}", err);
 8233            if let Some(active_window) = active_window {
 8234                active_window
 8235                    .update(cx, |_, window, cx| {
 8236                        let detail: SharedString = match err.error_code() {
 8237                            ErrorCode::SignedOut => "Please sign in to continue.".into(),
 8238                            ErrorCode::UpgradeRequired => concat!(
 8239                                "Your are running an unsupported version of Zed. ",
 8240                                "Please update to continue."
 8241                            )
 8242                            .into(),
 8243                            ErrorCode::NoSuchChannel => concat!(
 8244                                "No matching channel was found. ",
 8245                                "Please check the link and try again."
 8246                            )
 8247                            .into(),
 8248                            ErrorCode::Forbidden => concat!(
 8249                                "This channel is private, and you do not have access. ",
 8250                                "Please ask someone to add you and try again."
 8251                            )
 8252                            .into(),
 8253                            ErrorCode::Disconnected => {
 8254                                "Please check your internet connection and try again.".into()
 8255                            }
 8256                            _ => format!("{}\n\nPlease try again.", err).into(),
 8257                        };
 8258                        window.prompt(
 8259                            PromptLevel::Critical,
 8260                            "Failed to join channel",
 8261                            Some(&detail),
 8262                            &["Ok"],
 8263                            cx,
 8264                        )
 8265                    })?
 8266                    .await
 8267                    .ok();
 8268            }
 8269        }
 8270
 8271        // return ok, we showed the error to the user.
 8272        anyhow::Ok(())
 8273    })
 8274}
 8275
 8276pub async fn get_any_active_multi_workspace(
 8277    app_state: Arc<AppState>,
 8278    mut cx: AsyncApp,
 8279) -> anyhow::Result<WindowHandle<MultiWorkspace>> {
 8280    // find an existing workspace to focus and show call controls
 8281    let active_window = activate_any_workspace_window(&mut cx);
 8282    if active_window.is_none() {
 8283        cx.update(|cx| Workspace::new_local(vec![], app_state.clone(), None, None, None, cx))
 8284            .await?;
 8285    }
 8286    activate_any_workspace_window(&mut cx).context("could not open zed")
 8287}
 8288
 8289fn activate_any_workspace_window(cx: &mut AsyncApp) -> Option<WindowHandle<MultiWorkspace>> {
 8290    cx.update(|cx| {
 8291        if let Some(workspace_window) = cx
 8292            .active_window()
 8293            .and_then(|window| window.downcast::<MultiWorkspace>())
 8294        {
 8295            return Some(workspace_window);
 8296        }
 8297
 8298        for window in cx.windows() {
 8299            if let Some(workspace_window) = window.downcast::<MultiWorkspace>() {
 8300                workspace_window
 8301                    .update(cx, |_, window, _| window.activate_window())
 8302                    .ok();
 8303                return Some(workspace_window);
 8304            }
 8305        }
 8306        None
 8307    })
 8308}
 8309
 8310pub fn local_workspace_windows(cx: &App) -> Vec<WindowHandle<MultiWorkspace>> {
 8311    cx.windows()
 8312        .into_iter()
 8313        .filter_map(|window| window.downcast::<MultiWorkspace>())
 8314        .filter(|multi_workspace| {
 8315            multi_workspace.read(cx).is_ok_and(|multi_workspace| {
 8316                multi_workspace
 8317                    .workspaces()
 8318                    .iter()
 8319                    .any(|workspace| workspace.read(cx).project.read(cx).is_local())
 8320            })
 8321        })
 8322        .collect()
 8323}
 8324
 8325#[derive(Default)]
 8326pub struct OpenOptions {
 8327    pub visible: Option<OpenVisible>,
 8328    pub focus: Option<bool>,
 8329    pub open_new_workspace: Option<bool>,
 8330    pub prefer_focused_window: bool,
 8331    pub replace_window: Option<WindowHandle<MultiWorkspace>>,
 8332    pub env: Option<HashMap<String, String>>,
 8333}
 8334
 8335/// Opens a workspace by its database ID, used for restoring empty workspaces with unsaved content.
 8336pub fn open_workspace_by_id(
 8337    workspace_id: WorkspaceId,
 8338    app_state: Arc<AppState>,
 8339    requesting_window: Option<WindowHandle<MultiWorkspace>>,
 8340    cx: &mut App,
 8341) -> Task<anyhow::Result<WindowHandle<MultiWorkspace>>> {
 8342    let project_handle = Project::local(
 8343        app_state.client.clone(),
 8344        app_state.node_runtime.clone(),
 8345        app_state.user_store.clone(),
 8346        app_state.languages.clone(),
 8347        app_state.fs.clone(),
 8348        None,
 8349        project::LocalProjectFlags {
 8350            init_worktree_trust: true,
 8351            ..project::LocalProjectFlags::default()
 8352        },
 8353        cx,
 8354    );
 8355
 8356    cx.spawn(async move |cx| {
 8357        let serialized_workspace = persistence::DB
 8358            .workspace_for_id(workspace_id)
 8359            .with_context(|| format!("Workspace {workspace_id:?} not found"))?;
 8360
 8361        let centered_layout = serialized_workspace.centered_layout;
 8362
 8363        let (window, workspace) = if let Some(window) = requesting_window {
 8364            let workspace = window.update(cx, |multi_workspace, window, cx| {
 8365                let workspace = cx.new(|cx| {
 8366                    let mut workspace = Workspace::new(
 8367                        Some(workspace_id),
 8368                        project_handle.clone(),
 8369                        app_state.clone(),
 8370                        window,
 8371                        cx,
 8372                    );
 8373                    workspace.centered_layout = centered_layout;
 8374                    workspace
 8375                });
 8376                multi_workspace.add_workspace(workspace.clone(), cx);
 8377                workspace
 8378            })?;
 8379            (window, workspace)
 8380        } else {
 8381            let window_bounds_override = window_bounds_env_override();
 8382
 8383            let (window_bounds, display) = if let Some(bounds) = window_bounds_override {
 8384                (Some(WindowBounds::Windowed(bounds)), None)
 8385            } else if let Some(display) = serialized_workspace.display
 8386                && let Some(bounds) = serialized_workspace.window_bounds.as_ref()
 8387            {
 8388                (Some(bounds.0), Some(display))
 8389            } else if let Some((display, bounds)) = persistence::read_default_window_bounds() {
 8390                (Some(bounds), Some(display))
 8391            } else {
 8392                (None, None)
 8393            };
 8394
 8395            let options = cx.update(|cx| {
 8396                let mut options = (app_state.build_window_options)(display, cx);
 8397                options.window_bounds = window_bounds;
 8398                options
 8399            });
 8400
 8401            let window = cx.open_window(options, {
 8402                let app_state = app_state.clone();
 8403                let project_handle = project_handle.clone();
 8404                move |window, cx| {
 8405                    let workspace = cx.new(|cx| {
 8406                        let mut workspace = Workspace::new(
 8407                            Some(workspace_id),
 8408                            project_handle,
 8409                            app_state,
 8410                            window,
 8411                            cx,
 8412                        );
 8413                        workspace.centered_layout = centered_layout;
 8414                        workspace
 8415                    });
 8416                    cx.new(|cx| MultiWorkspace::new(workspace, cx))
 8417                }
 8418            })?;
 8419
 8420            let workspace = window.update(cx, |multi_workspace: &mut MultiWorkspace, _, _cx| {
 8421                multi_workspace.workspace().clone()
 8422            })?;
 8423
 8424            (window, workspace)
 8425        };
 8426
 8427        notify_if_database_failed(window, cx);
 8428
 8429        // Restore items from the serialized workspace
 8430        window
 8431            .update(cx, |_, window, cx| {
 8432                workspace.update(cx, |_workspace, cx| {
 8433                    open_items(Some(serialized_workspace), vec![], window, cx)
 8434                })
 8435            })?
 8436            .await?;
 8437
 8438        window.update(cx, |_, window, cx| {
 8439            workspace.update(cx, |workspace, cx| {
 8440                workspace.serialize_workspace(window, cx);
 8441            });
 8442        })?;
 8443
 8444        Ok(window)
 8445    })
 8446}
 8447
 8448#[allow(clippy::type_complexity)]
 8449pub fn open_paths(
 8450    abs_paths: &[PathBuf],
 8451    app_state: Arc<AppState>,
 8452    open_options: OpenOptions,
 8453    cx: &mut App,
 8454) -> Task<
 8455    anyhow::Result<(
 8456        WindowHandle<MultiWorkspace>,
 8457        Vec<Option<anyhow::Result<Box<dyn ItemHandle>>>>,
 8458    )>,
 8459> {
 8460    let abs_paths = abs_paths.to_vec();
 8461    let mut existing: Option<(WindowHandle<MultiWorkspace>, Entity<Workspace>)> = None;
 8462    let mut best_match = None;
 8463    let mut open_visible = OpenVisible::All;
 8464    #[cfg(target_os = "windows")]
 8465    let wsl_path = abs_paths
 8466        .iter()
 8467        .find_map(|p| util::paths::WslPath::from_path(p));
 8468
 8469    cx.spawn(async move |cx| {
 8470        if open_options.open_new_workspace != Some(true) {
 8471            let all_paths = abs_paths.iter().map(|path| app_state.fs.metadata(path));
 8472            let all_metadatas = futures::future::join_all(all_paths)
 8473                .await
 8474                .into_iter()
 8475                .filter_map(|result| result.ok().flatten())
 8476                .collect::<Vec<_>>();
 8477
 8478            cx.update(|cx| {
 8479                for window in local_workspace_windows(cx) {
 8480                    if let Ok(multi_workspace) = window.read(cx) {
 8481                        for workspace in multi_workspace.workspaces() {
 8482                            let m = workspace.read(cx).project.read(cx).visibility_for_paths(
 8483                                &abs_paths,
 8484                                &all_metadatas,
 8485                                open_options.open_new_workspace == None,
 8486                                cx,
 8487                            );
 8488                            if m > best_match {
 8489                                existing = Some((window, workspace.clone()));
 8490                                best_match = m;
 8491                            } else if best_match.is_none()
 8492                                && open_options.open_new_workspace == Some(false)
 8493                            {
 8494                                existing = Some((window, workspace.clone()))
 8495                            }
 8496                        }
 8497                    }
 8498                }
 8499            });
 8500
 8501            if (open_options.open_new_workspace.is_none()
 8502                || (open_options.open_new_workspace == Some(false)
 8503                    && open_options.prefer_focused_window))
 8504                && (existing.is_none() || open_options.prefer_focused_window)
 8505                && all_metadatas.iter().all(|file| !file.is_dir)
 8506            {
 8507                cx.update(|cx| {
 8508                    if let Some(window) = cx
 8509                        .active_window()
 8510                        .and_then(|window| window.downcast::<MultiWorkspace>())
 8511                        && let Ok(multi_workspace) = window.read(cx)
 8512                    {
 8513                        let active_workspace = multi_workspace.workspace().clone();
 8514                        let project = active_workspace.read(cx).project().read(cx);
 8515                        if project.is_local() && !project.is_via_collab() {
 8516                            existing = Some((window, active_workspace));
 8517                            open_visible = OpenVisible::None;
 8518                            return;
 8519                        }
 8520                    }
 8521                    'outer: for window in local_workspace_windows(cx) {
 8522                        if let Ok(multi_workspace) = window.read(cx) {
 8523                            for workspace in multi_workspace.workspaces() {
 8524                                let project = workspace.read(cx).project().read(cx);
 8525                                if project.is_via_collab() {
 8526                                    continue;
 8527                                }
 8528                                existing = Some((window, workspace.clone()));
 8529                                open_visible = OpenVisible::None;
 8530                                break 'outer;
 8531                            }
 8532                        }
 8533                    }
 8534                });
 8535            }
 8536        }
 8537
 8538        let result = if let Some((existing, target_workspace)) = existing {
 8539            let open_task = existing
 8540                .update(cx, |multi_workspace, window, cx| {
 8541                    window.activate_window();
 8542                    multi_workspace.activate(target_workspace.clone(), cx);
 8543                    target_workspace.update(cx, |workspace, cx| {
 8544                        workspace.open_paths(
 8545                            abs_paths,
 8546                            OpenOptions {
 8547                                visible: Some(open_visible),
 8548                                ..Default::default()
 8549                            },
 8550                            None,
 8551                            window,
 8552                            cx,
 8553                        )
 8554                    })
 8555                })?
 8556                .await;
 8557
 8558            _ = existing.update(cx, |multi_workspace, _, cx| {
 8559                let workspace = multi_workspace.workspace().clone();
 8560                workspace.update(cx, |workspace, cx| {
 8561                    for item in open_task.iter().flatten() {
 8562                        if let Err(e) = item {
 8563                            workspace.show_error(&e, cx);
 8564                        }
 8565                    }
 8566                });
 8567            });
 8568
 8569            Ok((existing, open_task))
 8570        } else {
 8571            let result = cx
 8572                .update(move |cx| {
 8573                    Workspace::new_local(
 8574                        abs_paths,
 8575                        app_state.clone(),
 8576                        open_options.replace_window,
 8577                        open_options.env,
 8578                        None,
 8579                        cx,
 8580                    )
 8581                })
 8582                .await;
 8583
 8584            if let Ok((ref window_handle, _)) = result {
 8585                window_handle
 8586                    .update(cx, |_, window, _cx| {
 8587                        window.activate_window();
 8588                    })
 8589                    .log_err();
 8590            }
 8591
 8592            result
 8593        };
 8594
 8595        #[cfg(target_os = "windows")]
 8596        if let Some(util::paths::WslPath{distro, path}) = wsl_path
 8597            && let Ok((multi_workspace_window, _)) = &result
 8598        {
 8599            multi_workspace_window
 8600                .update(cx, move |multi_workspace, _window, cx| {
 8601                    struct OpenInWsl;
 8602                    let workspace = multi_workspace.workspace().clone();
 8603                    workspace.update(cx, |workspace, cx| {
 8604                        workspace.show_notification(NotificationId::unique::<OpenInWsl>(), cx, move |cx| {
 8605                            let display_path = util::markdown::MarkdownInlineCode(&path.to_string_lossy());
 8606                            let msg = format!("{display_path} is inside a WSL filesystem, some features may not work unless you open it with WSL remote");
 8607                            cx.new(move |cx| {
 8608                                MessageNotification::new(msg, cx)
 8609                                    .primary_message("Open in WSL")
 8610                                    .primary_icon(IconName::FolderOpen)
 8611                                    .primary_on_click(move |window, cx| {
 8612                                        window.dispatch_action(Box::new(remote::OpenWslPath {
 8613                                                distro: remote::WslConnectionOptions {
 8614                                                        distro_name: distro.clone(),
 8615                                                    user: None,
 8616                                                },
 8617                                                paths: vec![path.clone().into()],
 8618                                            }), cx)
 8619                                    })
 8620                            })
 8621                        });
 8622                    });
 8623                })
 8624                .unwrap();
 8625        };
 8626        result
 8627    })
 8628}
 8629
 8630pub fn open_new(
 8631    open_options: OpenOptions,
 8632    app_state: Arc<AppState>,
 8633    cx: &mut App,
 8634    init: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + 'static + Send,
 8635) -> Task<anyhow::Result<()>> {
 8636    let task = Workspace::new_local(
 8637        Vec::new(),
 8638        app_state,
 8639        open_options.replace_window,
 8640        open_options.env,
 8641        Some(Box::new(init)),
 8642        cx,
 8643    );
 8644    cx.spawn(async move |cx| {
 8645        let (window, _opened_paths) = task.await?;
 8646        window
 8647            .update(cx, |_, window, _cx| {
 8648                window.activate_window();
 8649            })
 8650            .ok();
 8651        Ok(())
 8652    })
 8653}
 8654
 8655pub fn create_and_open_local_file(
 8656    path: &'static Path,
 8657    window: &mut Window,
 8658    cx: &mut Context<Workspace>,
 8659    default_content: impl 'static + Send + FnOnce() -> Rope,
 8660) -> Task<Result<Box<dyn ItemHandle>>> {
 8661    cx.spawn_in(window, async move |workspace, cx| {
 8662        let fs = workspace.read_with(cx, |workspace, _| workspace.app_state().fs.clone())?;
 8663        if !fs.is_file(path).await {
 8664            fs.create_file(path, Default::default()).await?;
 8665            fs.save(path, &default_content(), Default::default())
 8666                .await?;
 8667        }
 8668
 8669        workspace
 8670            .update_in(cx, |workspace, window, cx| {
 8671                workspace.with_local_or_wsl_workspace(window, cx, |workspace, window, cx| {
 8672                    let path = workspace
 8673                        .project
 8674                        .read_with(cx, |project, cx| project.try_windows_path_to_wsl(path, cx));
 8675                    cx.spawn_in(window, async move |workspace, cx| {
 8676                        let path = path.await?;
 8677                        let mut items = workspace
 8678                            .update_in(cx, |workspace, window, cx| {
 8679                                workspace.open_paths(
 8680                                    vec![path.to_path_buf()],
 8681                                    OpenOptions {
 8682                                        visible: Some(OpenVisible::None),
 8683                                        ..Default::default()
 8684                                    },
 8685                                    None,
 8686                                    window,
 8687                                    cx,
 8688                                )
 8689                            })?
 8690                            .await;
 8691                        let item = items.pop().flatten();
 8692                        item.with_context(|| format!("path {path:?} is not a file"))?
 8693                    })
 8694                })
 8695            })?
 8696            .await?
 8697            .await
 8698    })
 8699}
 8700
 8701pub fn open_remote_project_with_new_connection(
 8702    window: WindowHandle<MultiWorkspace>,
 8703    remote_connection: Arc<dyn RemoteConnection>,
 8704    cancel_rx: oneshot::Receiver<()>,
 8705    delegate: Arc<dyn RemoteClientDelegate>,
 8706    app_state: Arc<AppState>,
 8707    paths: Vec<PathBuf>,
 8708    cx: &mut App,
 8709) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8710    cx.spawn(async move |cx| {
 8711        let (workspace_id, serialized_workspace) =
 8712            deserialize_remote_project(remote_connection.connection_options(), paths.clone(), cx)
 8713                .await?;
 8714
 8715        let session = match cx
 8716            .update(|cx| {
 8717                remote::RemoteClient::new(
 8718                    ConnectionIdentifier::Workspace(workspace_id.0),
 8719                    remote_connection,
 8720                    cancel_rx,
 8721                    delegate,
 8722                    cx,
 8723                )
 8724            })
 8725            .await?
 8726        {
 8727            Some(result) => result,
 8728            None => return Ok(Vec::new()),
 8729        };
 8730
 8731        let project = cx.update(|cx| {
 8732            project::Project::remote(
 8733                session,
 8734                app_state.client.clone(),
 8735                app_state.node_runtime.clone(),
 8736                app_state.user_store.clone(),
 8737                app_state.languages.clone(),
 8738                app_state.fs.clone(),
 8739                true,
 8740                cx,
 8741            )
 8742        });
 8743
 8744        open_remote_project_inner(
 8745            project,
 8746            paths,
 8747            workspace_id,
 8748            serialized_workspace,
 8749            app_state,
 8750            window,
 8751            cx,
 8752        )
 8753        .await
 8754    })
 8755}
 8756
 8757pub fn open_remote_project_with_existing_connection(
 8758    connection_options: RemoteConnectionOptions,
 8759    project: Entity<Project>,
 8760    paths: Vec<PathBuf>,
 8761    app_state: Arc<AppState>,
 8762    window: WindowHandle<MultiWorkspace>,
 8763    cx: &mut AsyncApp,
 8764) -> Task<Result<Vec<Option<Box<dyn ItemHandle>>>>> {
 8765    cx.spawn(async move |cx| {
 8766        let (workspace_id, serialized_workspace) =
 8767            deserialize_remote_project(connection_options.clone(), paths.clone(), cx).await?;
 8768
 8769        open_remote_project_inner(
 8770            project,
 8771            paths,
 8772            workspace_id,
 8773            serialized_workspace,
 8774            app_state,
 8775            window,
 8776            cx,
 8777        )
 8778        .await
 8779    })
 8780}
 8781
 8782async fn open_remote_project_inner(
 8783    project: Entity<Project>,
 8784    paths: Vec<PathBuf>,
 8785    workspace_id: WorkspaceId,
 8786    serialized_workspace: Option<SerializedWorkspace>,
 8787    app_state: Arc<AppState>,
 8788    window: WindowHandle<MultiWorkspace>,
 8789    cx: &mut AsyncApp,
 8790) -> Result<Vec<Option<Box<dyn ItemHandle>>>> {
 8791    let toolchains = DB.toolchains(workspace_id).await?;
 8792    for (toolchain, worktree_path, path) in toolchains {
 8793        project
 8794            .update(cx, |this, cx| {
 8795                let Some(worktree_id) =
 8796                    this.find_worktree(&worktree_path, cx)
 8797                        .and_then(|(worktree, rel_path)| {
 8798                            if rel_path.is_empty() {
 8799                                Some(worktree.read(cx).id())
 8800                            } else {
 8801                                None
 8802                            }
 8803                        })
 8804                else {
 8805                    return Task::ready(None);
 8806                };
 8807
 8808                this.activate_toolchain(ProjectPath { worktree_id, path }, toolchain, cx)
 8809            })
 8810            .await;
 8811    }
 8812    let mut project_paths_to_open = vec![];
 8813    let mut project_path_errors = vec![];
 8814
 8815    for path in paths {
 8816        let result = cx
 8817            .update(|cx| Workspace::project_path_for_path(project.clone(), &path, true, cx))
 8818            .await;
 8819        match result {
 8820            Ok((_, project_path)) => {
 8821                project_paths_to_open.push((path.clone(), Some(project_path)));
 8822            }
 8823            Err(error) => {
 8824                project_path_errors.push(error);
 8825            }
 8826        };
 8827    }
 8828
 8829    if project_paths_to_open.is_empty() {
 8830        return Err(project_path_errors.pop().context("no paths given")?);
 8831    }
 8832
 8833    let workspace = window.update(cx, |multi_workspace, window, cx| {
 8834        telemetry::event!("SSH Project Opened");
 8835
 8836        let new_workspace = cx.new(|cx| {
 8837            let mut workspace =
 8838                Workspace::new(Some(workspace_id), project, app_state.clone(), window, cx);
 8839            workspace.update_history(cx);
 8840
 8841            if let Some(ref serialized) = serialized_workspace {
 8842                workspace.centered_layout = serialized.centered_layout;
 8843            }
 8844
 8845            workspace
 8846        });
 8847
 8848        multi_workspace.activate(new_workspace.clone(), cx);
 8849        new_workspace
 8850    })?;
 8851
 8852    let items = window
 8853        .update(cx, |_, window, cx| {
 8854            window.activate_window();
 8855            workspace.update(cx, |_workspace, cx| {
 8856                open_items(serialized_workspace, project_paths_to_open, window, cx)
 8857            })
 8858        })?
 8859        .await?;
 8860
 8861    workspace.update(cx, |workspace, cx| {
 8862        for error in project_path_errors {
 8863            if error.error_code() == proto::ErrorCode::DevServerProjectPathDoesNotExist {
 8864                if let Some(path) = error.error_tag("path") {
 8865                    workspace.show_error(&anyhow!("'{path}' does not exist"), cx)
 8866                }
 8867            } else {
 8868                workspace.show_error(&error, cx)
 8869            }
 8870        }
 8871    });
 8872
 8873    Ok(items.into_iter().map(|item| item?.ok()).collect())
 8874}
 8875
 8876fn deserialize_remote_project(
 8877    connection_options: RemoteConnectionOptions,
 8878    paths: Vec<PathBuf>,
 8879    cx: &AsyncApp,
 8880) -> Task<Result<(WorkspaceId, Option<SerializedWorkspace>)>> {
 8881    cx.background_spawn(async move {
 8882        let remote_connection_id = persistence::DB
 8883            .get_or_create_remote_connection(connection_options)
 8884            .await?;
 8885
 8886        let serialized_workspace =
 8887            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 8888
 8889        let workspace_id = if let Some(workspace_id) =
 8890            serialized_workspace.as_ref().map(|workspace| workspace.id)
 8891        {
 8892            workspace_id
 8893        } else {
 8894            persistence::DB.next_id().await?
 8895        };
 8896
 8897        Ok((workspace_id, serialized_workspace))
 8898    })
 8899}
 8900
 8901pub fn join_in_room_project(
 8902    project_id: u64,
 8903    follow_user_id: u64,
 8904    app_state: Arc<AppState>,
 8905    cx: &mut App,
 8906) -> Task<Result<()>> {
 8907    let windows = cx.windows();
 8908    cx.spawn(async move |cx| {
 8909        let existing_window_and_workspace: Option<(
 8910            WindowHandle<MultiWorkspace>,
 8911            Entity<Workspace>,
 8912        )> = windows.into_iter().find_map(|window_handle| {
 8913            window_handle
 8914                .downcast::<MultiWorkspace>()
 8915                .and_then(|window_handle| {
 8916                    window_handle
 8917                        .update(cx, |multi_workspace, _window, cx| {
 8918                            for workspace in multi_workspace.workspaces() {
 8919                                if workspace.read(cx).project().read(cx).remote_id()
 8920                                    == Some(project_id)
 8921                                {
 8922                                    return Some((window_handle, workspace.clone()));
 8923                                }
 8924                            }
 8925                            None
 8926                        })
 8927                        .unwrap_or(None)
 8928                })
 8929        });
 8930
 8931        let multi_workspace_window = if let Some((existing_window, target_workspace)) =
 8932            existing_window_and_workspace
 8933        {
 8934            existing_window
 8935                .update(cx, |multi_workspace, _, cx| {
 8936                    multi_workspace.activate(target_workspace, cx);
 8937                })
 8938                .ok();
 8939            existing_window
 8940        } else {
 8941            let active_call = cx.update(|cx| ActiveCall::global(cx));
 8942            let room = active_call
 8943                .read_with(cx, |call, _| call.room().cloned())
 8944                .context("not in a call")?;
 8945            let project = room
 8946                .update(cx, |room, cx| {
 8947                    room.join_project(
 8948                        project_id,
 8949                        app_state.languages.clone(),
 8950                        app_state.fs.clone(),
 8951                        cx,
 8952                    )
 8953                })
 8954                .await?;
 8955
 8956            let window_bounds_override = window_bounds_env_override();
 8957            cx.update(|cx| {
 8958                let mut options = (app_state.build_window_options)(None, cx);
 8959                options.window_bounds = window_bounds_override.map(WindowBounds::Windowed);
 8960                cx.open_window(options, |window, cx| {
 8961                    let workspace = cx.new(|cx| {
 8962                        Workspace::new(Default::default(), project, app_state.clone(), window, cx)
 8963                    });
 8964                    cx.new(|cx| MultiWorkspace::new(workspace, cx))
 8965                })
 8966            })?
 8967        };
 8968
 8969        multi_workspace_window.update(cx, |multi_workspace, window, cx| {
 8970            cx.activate(true);
 8971            window.activate_window();
 8972
 8973            // We set the active workspace above, so this is the correct workspace.
 8974            let workspace = multi_workspace.workspace().clone();
 8975            workspace.update(cx, |workspace, cx| {
 8976                if let Some(room) = ActiveCall::global(cx).read(cx).room().cloned() {
 8977                    let follow_peer_id = room
 8978                        .read(cx)
 8979                        .remote_participants()
 8980                        .iter()
 8981                        .find(|(_, participant)| participant.user.id == follow_user_id)
 8982                        .map(|(_, p)| p.peer_id)
 8983                        .or_else(|| {
 8984                            // If we couldn't follow the given user, follow the host instead.
 8985                            let collaborator = workspace
 8986                                .project()
 8987                                .read(cx)
 8988                                .collaborators()
 8989                                .values()
 8990                                .find(|collaborator| collaborator.is_host)?;
 8991                            Some(collaborator.peer_id)
 8992                        });
 8993
 8994                    if let Some(follow_peer_id) = follow_peer_id {
 8995                        workspace.follow(follow_peer_id, window, cx);
 8996                    }
 8997                }
 8998            });
 8999        })?;
 9000
 9001        anyhow::Ok(())
 9002    })
 9003}
 9004
 9005pub fn reload(cx: &mut App) {
 9006    let should_confirm = WorkspaceSettings::get_global(cx).confirm_quit;
 9007    let mut workspace_windows = cx
 9008        .windows()
 9009        .into_iter()
 9010        .filter_map(|window| window.downcast::<MultiWorkspace>())
 9011        .collect::<Vec<_>>();
 9012
 9013    // If multiple windows have unsaved changes, and need a save prompt,
 9014    // prompt in the active window before switching to a different window.
 9015    workspace_windows.sort_by_key(|window| window.is_active(cx) == Some(false));
 9016
 9017    let mut prompt = None;
 9018    if let (true, Some(window)) = (should_confirm, workspace_windows.first()) {
 9019        prompt = window
 9020            .update(cx, |_, window, cx| {
 9021                window.prompt(
 9022                    PromptLevel::Info,
 9023                    "Are you sure you want to restart?",
 9024                    None,
 9025                    &["Restart", "Cancel"],
 9026                    cx,
 9027                )
 9028            })
 9029            .ok();
 9030    }
 9031
 9032    cx.spawn(async move |cx| {
 9033        if let Some(prompt) = prompt {
 9034            let answer = prompt.await?;
 9035            if answer != 0 {
 9036                return anyhow::Ok(());
 9037            }
 9038        }
 9039
 9040        // If the user cancels any save prompt, then keep the app open.
 9041        for window in workspace_windows {
 9042            if let Ok(should_close) = window.update(cx, |multi_workspace, window, cx| {
 9043                let workspace = multi_workspace.workspace().clone();
 9044                workspace.update(cx, |workspace, cx| {
 9045                    workspace.prepare_to_close(CloseIntent::Quit, window, cx)
 9046                })
 9047            }) && !should_close.await?
 9048            {
 9049                return anyhow::Ok(());
 9050            }
 9051        }
 9052        cx.update(|cx| cx.restart());
 9053        anyhow::Ok(())
 9054    })
 9055    .detach_and_log_err(cx);
 9056}
 9057
 9058fn parse_pixel_position_env_var(value: &str) -> Option<Point<Pixels>> {
 9059    let mut parts = value.split(',');
 9060    let x: usize = parts.next()?.parse().ok()?;
 9061    let y: usize = parts.next()?.parse().ok()?;
 9062    Some(point(px(x as f32), px(y as f32)))
 9063}
 9064
 9065fn parse_pixel_size_env_var(value: &str) -> Option<Size<Pixels>> {
 9066    let mut parts = value.split(',');
 9067    let width: usize = parts.next()?.parse().ok()?;
 9068    let height: usize = parts.next()?.parse().ok()?;
 9069    Some(size(px(width as f32), px(height as f32)))
 9070}
 9071
 9072/// Add client-side decorations (rounded corners, shadows, resize handling) when
 9073/// appropriate.
 9074///
 9075/// The `border_radius_tiling` parameter allows overriding which corners get
 9076/// rounded, independently of the actual window tiling state. This is used
 9077/// specifically for the workspace switcher sidebar: when the sidebar is open,
 9078/// we want square corners on the left (so the sidebar appears flush with the
 9079/// window edge) but we still need the shadow padding for proper visual
 9080/// appearance. Unlike actual window tiling, this only affects border radius -
 9081/// not padding or shadows.
 9082pub fn client_side_decorations(
 9083    element: impl IntoElement,
 9084    window: &mut Window,
 9085    cx: &mut App,
 9086    border_radius_tiling: Tiling,
 9087) -> Stateful<Div> {
 9088    const BORDER_SIZE: Pixels = px(1.0);
 9089    let decorations = window.window_decorations();
 9090    let tiling = match decorations {
 9091        Decorations::Server => Tiling::default(),
 9092        Decorations::Client { tiling } => tiling,
 9093    };
 9094
 9095    match decorations {
 9096        Decorations::Client { .. } => window.set_client_inset(theme::CLIENT_SIDE_DECORATION_SHADOW),
 9097        Decorations::Server => window.set_client_inset(px(0.0)),
 9098    }
 9099
 9100    struct GlobalResizeEdge(ResizeEdge);
 9101    impl Global for GlobalResizeEdge {}
 9102
 9103    div()
 9104        .id("window-backdrop")
 9105        .bg(transparent_black())
 9106        .map(|div| match decorations {
 9107            Decorations::Server => div,
 9108            Decorations::Client { .. } => div
 9109                .when(
 9110                    !(tiling.top
 9111                        || tiling.right
 9112                        || border_radius_tiling.top
 9113                        || border_radius_tiling.right),
 9114                    |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9115                )
 9116                .when(
 9117                    !(tiling.top
 9118                        || tiling.left
 9119                        || border_radius_tiling.top
 9120                        || border_radius_tiling.left),
 9121                    |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9122                )
 9123                .when(
 9124                    !(tiling.bottom
 9125                        || tiling.right
 9126                        || border_radius_tiling.bottom
 9127                        || border_radius_tiling.right),
 9128                    |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9129                )
 9130                .when(
 9131                    !(tiling.bottom
 9132                        || tiling.left
 9133                        || border_radius_tiling.bottom
 9134                        || border_radius_tiling.left),
 9135                    |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9136                )
 9137                .when(!tiling.top, |div| {
 9138                    div.pt(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9139                })
 9140                .when(!tiling.bottom, |div| {
 9141                    div.pb(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9142                })
 9143                .when(!tiling.left, |div| {
 9144                    div.pl(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9145                })
 9146                .when(!tiling.right, |div| {
 9147                    div.pr(theme::CLIENT_SIDE_DECORATION_SHADOW)
 9148                })
 9149                .on_mouse_move(move |e, window, cx| {
 9150                    let size = window.window_bounds().get_bounds().size;
 9151                    let pos = e.position;
 9152
 9153                    let new_edge =
 9154                        resize_edge(pos, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling);
 9155
 9156                    let edge = cx.try_global::<GlobalResizeEdge>();
 9157                    if new_edge != edge.map(|edge| edge.0) {
 9158                        window
 9159                            .window_handle()
 9160                            .update(cx, |workspace, _, cx| {
 9161                                cx.notify(workspace.entity_id());
 9162                            })
 9163                            .ok();
 9164                    }
 9165                })
 9166                .on_mouse_down(MouseButton::Left, move |e, window, _| {
 9167                    let size = window.window_bounds().get_bounds().size;
 9168                    let pos = e.position;
 9169
 9170                    let edge = match resize_edge(
 9171                        pos,
 9172                        theme::CLIENT_SIDE_DECORATION_SHADOW,
 9173                        size,
 9174                        tiling,
 9175                    ) {
 9176                        Some(value) => value,
 9177                        None => return,
 9178                    };
 9179
 9180                    window.start_window_resize(edge);
 9181                }),
 9182        })
 9183        .size_full()
 9184        .child(
 9185            div()
 9186                .cursor(CursorStyle::Arrow)
 9187                .map(|div| match decorations {
 9188                    Decorations::Server => div,
 9189                    Decorations::Client { .. } => div
 9190                        .border_color(cx.theme().colors().border)
 9191                        .when(
 9192                            !(tiling.top
 9193                                || tiling.right
 9194                                || border_radius_tiling.top
 9195                                || border_radius_tiling.right),
 9196                            |div| div.rounded_tr(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9197                        )
 9198                        .when(
 9199                            !(tiling.top
 9200                                || tiling.left
 9201                                || border_radius_tiling.top
 9202                                || border_radius_tiling.left),
 9203                            |div| div.rounded_tl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9204                        )
 9205                        .when(
 9206                            !(tiling.bottom
 9207                                || tiling.right
 9208                                || border_radius_tiling.bottom
 9209                                || border_radius_tiling.right),
 9210                            |div| div.rounded_br(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9211                        )
 9212                        .when(
 9213                            !(tiling.bottom
 9214                                || tiling.left
 9215                                || border_radius_tiling.bottom
 9216                                || border_radius_tiling.left),
 9217                            |div| div.rounded_bl(theme::CLIENT_SIDE_DECORATION_ROUNDING),
 9218                        )
 9219                        .when(!tiling.top, |div| div.border_t(BORDER_SIZE))
 9220                        .when(!tiling.bottom, |div| div.border_b(BORDER_SIZE))
 9221                        .when(!tiling.left, |div| div.border_l(BORDER_SIZE))
 9222                        .when(!tiling.right, |div| div.border_r(BORDER_SIZE))
 9223                        .when(!tiling.is_tiled(), |div| {
 9224                            div.shadow(vec![gpui::BoxShadow {
 9225                                color: Hsla {
 9226                                    h: 0.,
 9227                                    s: 0.,
 9228                                    l: 0.,
 9229                                    a: 0.4,
 9230                                },
 9231                                blur_radius: theme::CLIENT_SIDE_DECORATION_SHADOW / 2.,
 9232                                spread_radius: px(0.),
 9233                                offset: point(px(0.0), px(0.0)),
 9234                            }])
 9235                        }),
 9236                })
 9237                .on_mouse_move(|_e, _, cx| {
 9238                    cx.stop_propagation();
 9239                })
 9240                .size_full()
 9241                .child(element),
 9242        )
 9243        .map(|div| match decorations {
 9244            Decorations::Server => div,
 9245            Decorations::Client { tiling, .. } => div.child(
 9246                canvas(
 9247                    |_bounds, window, _| {
 9248                        window.insert_hitbox(
 9249                            Bounds::new(
 9250                                point(px(0.0), px(0.0)),
 9251                                window.window_bounds().get_bounds().size,
 9252                            ),
 9253                            HitboxBehavior::Normal,
 9254                        )
 9255                    },
 9256                    move |_bounds, hitbox, window, cx| {
 9257                        let mouse = window.mouse_position();
 9258                        let size = window.window_bounds().get_bounds().size;
 9259                        let Some(edge) =
 9260                            resize_edge(mouse, theme::CLIENT_SIDE_DECORATION_SHADOW, size, tiling)
 9261                        else {
 9262                            return;
 9263                        };
 9264                        cx.set_global(GlobalResizeEdge(edge));
 9265                        window.set_cursor_style(
 9266                            match edge {
 9267                                ResizeEdge::Top | ResizeEdge::Bottom => CursorStyle::ResizeUpDown,
 9268                                ResizeEdge::Left | ResizeEdge::Right => {
 9269                                    CursorStyle::ResizeLeftRight
 9270                                }
 9271                                ResizeEdge::TopLeft | ResizeEdge::BottomRight => {
 9272                                    CursorStyle::ResizeUpLeftDownRight
 9273                                }
 9274                                ResizeEdge::TopRight | ResizeEdge::BottomLeft => {
 9275                                    CursorStyle::ResizeUpRightDownLeft
 9276                                }
 9277                            },
 9278                            &hitbox,
 9279                        );
 9280                    },
 9281                )
 9282                .size_full()
 9283                .absolute(),
 9284            ),
 9285        })
 9286}
 9287
 9288fn resize_edge(
 9289    pos: Point<Pixels>,
 9290    shadow_size: Pixels,
 9291    window_size: Size<Pixels>,
 9292    tiling: Tiling,
 9293) -> Option<ResizeEdge> {
 9294    let bounds = Bounds::new(Point::default(), window_size).inset(shadow_size * 1.5);
 9295    if bounds.contains(&pos) {
 9296        return None;
 9297    }
 9298
 9299    let corner_size = size(shadow_size * 1.5, shadow_size * 1.5);
 9300    let top_left_bounds = Bounds::new(Point::new(px(0.), px(0.)), corner_size);
 9301    if !tiling.top && top_left_bounds.contains(&pos) {
 9302        return Some(ResizeEdge::TopLeft);
 9303    }
 9304
 9305    let top_right_bounds = Bounds::new(
 9306        Point::new(window_size.width - corner_size.width, px(0.)),
 9307        corner_size,
 9308    );
 9309    if !tiling.top && top_right_bounds.contains(&pos) {
 9310        return Some(ResizeEdge::TopRight);
 9311    }
 9312
 9313    let bottom_left_bounds = Bounds::new(
 9314        Point::new(px(0.), window_size.height - corner_size.height),
 9315        corner_size,
 9316    );
 9317    if !tiling.bottom && bottom_left_bounds.contains(&pos) {
 9318        return Some(ResizeEdge::BottomLeft);
 9319    }
 9320
 9321    let bottom_right_bounds = Bounds::new(
 9322        Point::new(
 9323            window_size.width - corner_size.width,
 9324            window_size.height - corner_size.height,
 9325        ),
 9326        corner_size,
 9327    );
 9328    if !tiling.bottom && bottom_right_bounds.contains(&pos) {
 9329        return Some(ResizeEdge::BottomRight);
 9330    }
 9331
 9332    if !tiling.top && pos.y < shadow_size {
 9333        Some(ResizeEdge::Top)
 9334    } else if !tiling.bottom && pos.y > window_size.height - shadow_size {
 9335        Some(ResizeEdge::Bottom)
 9336    } else if !tiling.left && pos.x < shadow_size {
 9337        Some(ResizeEdge::Left)
 9338    } else if !tiling.right && pos.x > window_size.width - shadow_size {
 9339        Some(ResizeEdge::Right)
 9340    } else {
 9341        None
 9342    }
 9343}
 9344
 9345fn join_pane_into_active(
 9346    active_pane: &Entity<Pane>,
 9347    pane: &Entity<Pane>,
 9348    window: &mut Window,
 9349    cx: &mut App,
 9350) {
 9351    if pane == active_pane {
 9352    } else if pane.read(cx).items_len() == 0 {
 9353        pane.update(cx, |_, cx| {
 9354            cx.emit(pane::Event::Remove {
 9355                focus_on_pane: None,
 9356            });
 9357        })
 9358    } else {
 9359        move_all_items(pane, active_pane, window, cx);
 9360    }
 9361}
 9362
 9363fn move_all_items(
 9364    from_pane: &Entity<Pane>,
 9365    to_pane: &Entity<Pane>,
 9366    window: &mut Window,
 9367    cx: &mut App,
 9368) {
 9369    let destination_is_different = from_pane != to_pane;
 9370    let mut moved_items = 0;
 9371    for (item_ix, item_handle) in from_pane
 9372        .read(cx)
 9373        .items()
 9374        .enumerate()
 9375        .map(|(ix, item)| (ix, item.clone()))
 9376        .collect::<Vec<_>>()
 9377    {
 9378        let ix = item_ix - moved_items;
 9379        if destination_is_different {
 9380            // Close item from previous pane
 9381            from_pane.update(cx, |source, cx| {
 9382                source.remove_item_and_focus_on_pane(ix, false, to_pane.clone(), window, cx);
 9383            });
 9384            moved_items += 1;
 9385        }
 9386
 9387        // This automatically removes duplicate items in the pane
 9388        to_pane.update(cx, |destination, cx| {
 9389            destination.add_item(item_handle, true, true, None, window, cx);
 9390            window.focus(&destination.focus_handle(cx), cx)
 9391        });
 9392    }
 9393}
 9394
 9395pub fn move_item(
 9396    source: &Entity<Pane>,
 9397    destination: &Entity<Pane>,
 9398    item_id_to_move: EntityId,
 9399    destination_index: usize,
 9400    activate: bool,
 9401    window: &mut Window,
 9402    cx: &mut App,
 9403) {
 9404    let Some((item_ix, item_handle)) = source
 9405        .read(cx)
 9406        .items()
 9407        .enumerate()
 9408        .find(|(_, item_handle)| item_handle.item_id() == item_id_to_move)
 9409        .map(|(ix, item)| (ix, item.clone()))
 9410    else {
 9411        // Tab was closed during drag
 9412        return;
 9413    };
 9414
 9415    if source != destination {
 9416        // Close item from previous pane
 9417        source.update(cx, |source, cx| {
 9418            source.remove_item_and_focus_on_pane(item_ix, false, destination.clone(), window, cx);
 9419        });
 9420    }
 9421
 9422    // This automatically removes duplicate items in the pane
 9423    destination.update(cx, |destination, cx| {
 9424        destination.add_item_inner(
 9425            item_handle,
 9426            activate,
 9427            activate,
 9428            activate,
 9429            Some(destination_index),
 9430            window,
 9431            cx,
 9432        );
 9433        if activate {
 9434            window.focus(&destination.focus_handle(cx), cx)
 9435        }
 9436    });
 9437}
 9438
 9439pub fn move_active_item(
 9440    source: &Entity<Pane>,
 9441    destination: &Entity<Pane>,
 9442    focus_destination: bool,
 9443    close_if_empty: bool,
 9444    window: &mut Window,
 9445    cx: &mut App,
 9446) {
 9447    if source == destination {
 9448        return;
 9449    }
 9450    let Some(active_item) = source.read(cx).active_item() else {
 9451        return;
 9452    };
 9453    source.update(cx, |source_pane, cx| {
 9454        let item_id = active_item.item_id();
 9455        source_pane.remove_item(item_id, false, close_if_empty, window, cx);
 9456        destination.update(cx, |target_pane, cx| {
 9457            target_pane.add_item(
 9458                active_item,
 9459                focus_destination,
 9460                focus_destination,
 9461                Some(target_pane.items_len()),
 9462                window,
 9463                cx,
 9464            );
 9465        });
 9466    });
 9467}
 9468
 9469pub fn clone_active_item(
 9470    workspace_id: Option<WorkspaceId>,
 9471    source: &Entity<Pane>,
 9472    destination: &Entity<Pane>,
 9473    focus_destination: bool,
 9474    window: &mut Window,
 9475    cx: &mut App,
 9476) {
 9477    if source == destination {
 9478        return;
 9479    }
 9480    let Some(active_item) = source.read(cx).active_item() else {
 9481        return;
 9482    };
 9483    if !active_item.can_split(cx) {
 9484        return;
 9485    }
 9486    let destination = destination.downgrade();
 9487    let task = active_item.clone_on_split(workspace_id, window, cx);
 9488    window
 9489        .spawn(cx, async move |cx| {
 9490            let Some(clone) = task.await else {
 9491                return;
 9492            };
 9493            destination
 9494                .update_in(cx, |target_pane, window, cx| {
 9495                    target_pane.add_item(
 9496                        clone,
 9497                        focus_destination,
 9498                        focus_destination,
 9499                        Some(target_pane.items_len()),
 9500                        window,
 9501                        cx,
 9502                    );
 9503                })
 9504                .log_err();
 9505        })
 9506        .detach();
 9507}
 9508
 9509#[derive(Debug)]
 9510pub struct WorkspacePosition {
 9511    pub window_bounds: Option<WindowBounds>,
 9512    pub display: Option<Uuid>,
 9513    pub centered_layout: bool,
 9514}
 9515
 9516pub fn remote_workspace_position_from_db(
 9517    connection_options: RemoteConnectionOptions,
 9518    paths_to_open: &[PathBuf],
 9519    cx: &App,
 9520) -> Task<Result<WorkspacePosition>> {
 9521    let paths = paths_to_open.to_vec();
 9522
 9523    cx.background_spawn(async move {
 9524        let remote_connection_id = persistence::DB
 9525            .get_or_create_remote_connection(connection_options)
 9526            .await
 9527            .context("fetching serialized ssh project")?;
 9528        let serialized_workspace =
 9529            persistence::DB.remote_workspace_for_roots(&paths, remote_connection_id);
 9530
 9531        let (window_bounds, display) = if let Some(bounds) = window_bounds_env_override() {
 9532            (Some(WindowBounds::Windowed(bounds)), None)
 9533        } else {
 9534            let restorable_bounds = serialized_workspace
 9535                .as_ref()
 9536                .and_then(|workspace| {
 9537                    Some((workspace.display?, workspace.window_bounds.map(|b| b.0)?))
 9538                })
 9539                .or_else(|| persistence::read_default_window_bounds());
 9540
 9541            if let Some((serialized_display, serialized_bounds)) = restorable_bounds {
 9542                (Some(serialized_bounds), Some(serialized_display))
 9543            } else {
 9544                (None, None)
 9545            }
 9546        };
 9547
 9548        let centered_layout = serialized_workspace
 9549            .as_ref()
 9550            .map(|w| w.centered_layout)
 9551            .unwrap_or(false);
 9552
 9553        Ok(WorkspacePosition {
 9554            window_bounds,
 9555            display,
 9556            centered_layout,
 9557        })
 9558    })
 9559}
 9560
 9561pub fn with_active_or_new_workspace(
 9562    cx: &mut App,
 9563    f: impl FnOnce(&mut Workspace, &mut Window, &mut Context<Workspace>) + Send + 'static,
 9564) {
 9565    match cx
 9566        .active_window()
 9567        .and_then(|w| w.downcast::<MultiWorkspace>())
 9568    {
 9569        Some(multi_workspace) => {
 9570            cx.defer(move |cx| {
 9571                multi_workspace
 9572                    .update(cx, |multi_workspace, window, cx| {
 9573                        let workspace = multi_workspace.workspace().clone();
 9574                        workspace.update(cx, |workspace, cx| f(workspace, window, cx));
 9575                    })
 9576                    .log_err();
 9577            });
 9578        }
 9579        None => {
 9580            let app_state = AppState::global(cx);
 9581            if let Some(app_state) = app_state.upgrade() {
 9582                open_new(
 9583                    OpenOptions::default(),
 9584                    app_state,
 9585                    cx,
 9586                    move |workspace, window, cx| f(workspace, window, cx),
 9587                )
 9588                .detach_and_log_err(cx);
 9589            }
 9590        }
 9591    }
 9592}
 9593
 9594#[cfg(test)]
 9595mod tests {
 9596    use std::{cell::RefCell, rc::Rc};
 9597
 9598    use super::*;
 9599    use crate::{
 9600        dock::{PanelEvent, test::TestPanel},
 9601        item::{
 9602            ItemBufferKind, ItemEvent,
 9603            test::{TestItem, TestProjectItem},
 9604        },
 9605    };
 9606    use fs::FakeFs;
 9607    use gpui::{
 9608        DismissEvent, Empty, EventEmitter, FocusHandle, Focusable, Render, TestAppContext,
 9609        UpdateGlobal, VisualTestContext, px,
 9610    };
 9611    use project::{Project, ProjectEntryId};
 9612    use serde_json::json;
 9613    use settings::SettingsStore;
 9614    use util::rel_path::rel_path;
 9615
 9616    #[gpui::test]
 9617    async fn test_tab_disambiguation(cx: &mut TestAppContext) {
 9618        init_test(cx);
 9619
 9620        let fs = FakeFs::new(cx.executor());
 9621        let project = Project::test(fs, [], cx).await;
 9622        let (workspace, cx) =
 9623            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9624
 9625        // Adding an item with no ambiguity renders the tab without detail.
 9626        let item1 = cx.new(|cx| {
 9627            let mut item = TestItem::new(cx);
 9628            item.tab_descriptions = Some(vec!["c", "b1/c", "a/b1/c"]);
 9629            item
 9630        });
 9631        workspace.update_in(cx, |workspace, window, cx| {
 9632            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9633        });
 9634        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(0)));
 9635
 9636        // Adding an item that creates ambiguity increases the level of detail on
 9637        // both tabs.
 9638        let item2 = cx.new_window_entity(|_window, cx| {
 9639            let mut item = TestItem::new(cx);
 9640            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9641            item
 9642        });
 9643        workspace.update_in(cx, |workspace, window, cx| {
 9644            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9645        });
 9646        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9647        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9648
 9649        // Adding an item that creates ambiguity increases the level of detail only
 9650        // on the ambiguous tabs. In this case, the ambiguity can't be resolved so
 9651        // we stop at the highest detail available.
 9652        let item3 = cx.new(|cx| {
 9653            let mut item = TestItem::new(cx);
 9654            item.tab_descriptions = Some(vec!["c", "b2/c", "a/b2/c"]);
 9655            item
 9656        });
 9657        workspace.update_in(cx, |workspace, window, cx| {
 9658            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9659        });
 9660        item1.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(1)));
 9661        item2.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9662        item3.read_with(cx, |item, _| assert_eq!(item.tab_detail.get(), Some(3)));
 9663    }
 9664
 9665    #[gpui::test]
 9666    async fn test_tracking_active_path(cx: &mut TestAppContext) {
 9667        init_test(cx);
 9668
 9669        let fs = FakeFs::new(cx.executor());
 9670        fs.insert_tree(
 9671            "/root1",
 9672            json!({
 9673                "one.txt": "",
 9674                "two.txt": "",
 9675            }),
 9676        )
 9677        .await;
 9678        fs.insert_tree(
 9679            "/root2",
 9680            json!({
 9681                "three.txt": "",
 9682            }),
 9683        )
 9684        .await;
 9685
 9686        let project = Project::test(fs, ["root1".as_ref()], cx).await;
 9687        let (workspace, cx) =
 9688            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9689        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
 9690        let worktree_id = project.update(cx, |project, cx| {
 9691            project.worktrees(cx).next().unwrap().read(cx).id()
 9692        });
 9693
 9694        let item1 = cx.new(|cx| {
 9695            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "one.txt", cx)])
 9696        });
 9697        let item2 = cx.new(|cx| {
 9698            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "two.txt", cx)])
 9699        });
 9700
 9701        // Add an item to an empty pane
 9702        workspace.update_in(cx, |workspace, window, cx| {
 9703            workspace.add_item_to_active_pane(Box::new(item1), None, true, window, cx)
 9704        });
 9705        project.update(cx, |project, cx| {
 9706            assert_eq!(
 9707                project.active_entry(),
 9708                project
 9709                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9710                    .map(|e| e.id)
 9711            );
 9712        });
 9713        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9714
 9715        // Add a second item to a non-empty pane
 9716        workspace.update_in(cx, |workspace, window, cx| {
 9717            workspace.add_item_to_active_pane(Box::new(item2), None, true, window, cx)
 9718        });
 9719        assert_eq!(cx.window_title().as_deref(), Some("root1 — two.txt"));
 9720        project.update(cx, |project, cx| {
 9721            assert_eq!(
 9722                project.active_entry(),
 9723                project
 9724                    .entry_for_path(&(worktree_id, rel_path("two.txt")).into(), cx)
 9725                    .map(|e| e.id)
 9726            );
 9727        });
 9728
 9729        // Close the active item
 9730        pane.update_in(cx, |pane, window, cx| {
 9731            pane.close_active_item(&Default::default(), window, cx)
 9732        })
 9733        .await
 9734        .unwrap();
 9735        assert_eq!(cx.window_title().as_deref(), Some("root1 — one.txt"));
 9736        project.update(cx, |project, cx| {
 9737            assert_eq!(
 9738                project.active_entry(),
 9739                project
 9740                    .entry_for_path(&(worktree_id, rel_path("one.txt")).into(), cx)
 9741                    .map(|e| e.id)
 9742            );
 9743        });
 9744
 9745        // Add a project folder
 9746        project
 9747            .update(cx, |project, cx| {
 9748                project.find_or_create_worktree("root2", true, cx)
 9749            })
 9750            .await
 9751            .unwrap();
 9752        assert_eq!(cx.window_title().as_deref(), Some("root1, root2 — one.txt"));
 9753
 9754        // Remove a project folder
 9755        project.update(cx, |project, cx| project.remove_worktree(worktree_id, cx));
 9756        assert_eq!(cx.window_title().as_deref(), Some("root2 — one.txt"));
 9757    }
 9758
 9759    #[gpui::test]
 9760    async fn test_close_window(cx: &mut TestAppContext) {
 9761        init_test(cx);
 9762
 9763        let fs = FakeFs::new(cx.executor());
 9764        fs.insert_tree("/root", json!({ "one": "" })).await;
 9765
 9766        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9767        let (workspace, cx) =
 9768            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9769
 9770        // When there are no dirty items, there's nothing to do.
 9771        let item1 = cx.new(TestItem::new);
 9772        workspace.update_in(cx, |w, window, cx| {
 9773            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx)
 9774        });
 9775        let task = workspace.update_in(cx, |w, window, cx| {
 9776            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9777        });
 9778        assert!(task.await.unwrap());
 9779
 9780        // When there are dirty untitled items, prompt to save each one. If the user
 9781        // cancels any prompt, then abort.
 9782        let item2 = cx.new(|cx| TestItem::new(cx).with_dirty(true));
 9783        let item3 = cx.new(|cx| {
 9784            TestItem::new(cx)
 9785                .with_dirty(true)
 9786                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9787        });
 9788        workspace.update_in(cx, |w, window, cx| {
 9789            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9790            w.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9791        });
 9792        let task = workspace.update_in(cx, |w, window, cx| {
 9793            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9794        });
 9795        cx.executor().run_until_parked();
 9796        cx.simulate_prompt_answer("Cancel"); // cancel save all
 9797        cx.executor().run_until_parked();
 9798        assert!(!cx.has_pending_prompt());
 9799        assert!(!task.await.unwrap());
 9800    }
 9801
 9802    #[gpui::test]
 9803    async fn test_close_window_with_serializable_items(cx: &mut TestAppContext) {
 9804        init_test(cx);
 9805
 9806        // Register TestItem as a serializable item
 9807        cx.update(|cx| {
 9808            register_serializable_item::<TestItem>(cx);
 9809        });
 9810
 9811        let fs = FakeFs::new(cx.executor());
 9812        fs.insert_tree("/root", json!({ "one": "" })).await;
 9813
 9814        let project = Project::test(fs, ["root".as_ref()], cx).await;
 9815        let (workspace, cx) =
 9816            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
 9817
 9818        // When there are dirty untitled items, but they can serialize, then there is no prompt.
 9819        let item1 = cx.new(|cx| {
 9820            TestItem::new(cx)
 9821                .with_dirty(true)
 9822                .with_serialize(|| Some(Task::ready(Ok(()))))
 9823        });
 9824        let item2 = cx.new(|cx| {
 9825            TestItem::new(cx)
 9826                .with_dirty(true)
 9827                .with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
 9828                .with_serialize(|| Some(Task::ready(Ok(()))))
 9829        });
 9830        workspace.update_in(cx, |w, window, cx| {
 9831            w.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9832            w.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9833        });
 9834        let task = workspace.update_in(cx, |w, window, cx| {
 9835            w.prepare_to_close(CloseIntent::CloseWindow, window, cx)
 9836        });
 9837        assert!(task.await.unwrap());
 9838    }
 9839
 9840    #[gpui::test]
 9841    async fn test_close_pane_items(cx: &mut TestAppContext) {
 9842        init_test(cx);
 9843
 9844        let fs = FakeFs::new(cx.executor());
 9845
 9846        let project = Project::test(fs, None, cx).await;
 9847        let (workspace, cx) =
 9848            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9849
 9850        let item1 = cx.new(|cx| {
 9851            TestItem::new(cx)
 9852                .with_dirty(true)
 9853                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
 9854        });
 9855        let item2 = cx.new(|cx| {
 9856            TestItem::new(cx)
 9857                .with_dirty(true)
 9858                .with_conflict(true)
 9859                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
 9860        });
 9861        let item3 = cx.new(|cx| {
 9862            TestItem::new(cx)
 9863                .with_dirty(true)
 9864                .with_conflict(true)
 9865                .with_project_items(&[dirty_project_item(3, "3.txt", cx)])
 9866        });
 9867        let item4 = cx.new(|cx| {
 9868            TestItem::new(cx).with_dirty(true).with_project_items(&[{
 9869                let project_item = TestProjectItem::new_untitled(cx);
 9870                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
 9871                project_item
 9872            }])
 9873        });
 9874        let pane = workspace.update_in(cx, |workspace, window, cx| {
 9875            workspace.add_item_to_active_pane(Box::new(item1.clone()), None, true, window, cx);
 9876            workspace.add_item_to_active_pane(Box::new(item2.clone()), None, true, window, cx);
 9877            workspace.add_item_to_active_pane(Box::new(item3.clone()), None, true, window, cx);
 9878            workspace.add_item_to_active_pane(Box::new(item4.clone()), None, true, window, cx);
 9879            workspace.active_pane().clone()
 9880        });
 9881
 9882        let close_items = pane.update_in(cx, |pane, window, cx| {
 9883            pane.activate_item(1, true, true, window, cx);
 9884            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9885            let item1_id = item1.item_id();
 9886            let item3_id = item3.item_id();
 9887            let item4_id = item4.item_id();
 9888            pane.close_items(window, cx, SaveIntent::Close, move |id| {
 9889                [item1_id, item3_id, item4_id].contains(&id)
 9890            })
 9891        });
 9892        cx.executor().run_until_parked();
 9893
 9894        assert!(cx.has_pending_prompt());
 9895        cx.simulate_prompt_answer("Save all");
 9896
 9897        cx.executor().run_until_parked();
 9898
 9899        // Item 1 is saved. There's a prompt to save item 3.
 9900        pane.update(cx, |pane, cx| {
 9901            assert_eq!(item1.read(cx).save_count, 1);
 9902            assert_eq!(item1.read(cx).save_as_count, 0);
 9903            assert_eq!(item1.read(cx).reload_count, 0);
 9904            assert_eq!(pane.items_len(), 3);
 9905            assert_eq!(pane.active_item().unwrap().item_id(), item3.item_id());
 9906        });
 9907        assert!(cx.has_pending_prompt());
 9908
 9909        // Cancel saving item 3.
 9910        cx.simulate_prompt_answer("Discard");
 9911        cx.executor().run_until_parked();
 9912
 9913        // Item 3 is reloaded. There's a prompt to save item 4.
 9914        pane.update(cx, |pane, cx| {
 9915            assert_eq!(item3.read(cx).save_count, 0);
 9916            assert_eq!(item3.read(cx).save_as_count, 0);
 9917            assert_eq!(item3.read(cx).reload_count, 1);
 9918            assert_eq!(pane.items_len(), 2);
 9919            assert_eq!(pane.active_item().unwrap().item_id(), item4.item_id());
 9920        });
 9921
 9922        // There's a prompt for a path for item 4.
 9923        cx.simulate_new_path_selection(|_| Some(Default::default()));
 9924        close_items.await.unwrap();
 9925
 9926        // The requested items are closed.
 9927        pane.update(cx, |pane, cx| {
 9928            assert_eq!(item4.read(cx).save_count, 0);
 9929            assert_eq!(item4.read(cx).save_as_count, 1);
 9930            assert_eq!(item4.read(cx).reload_count, 0);
 9931            assert_eq!(pane.items_len(), 1);
 9932            assert_eq!(pane.active_item().unwrap().item_id(), item2.item_id());
 9933        });
 9934    }
 9935
 9936    #[gpui::test]
 9937    async fn test_prompting_to_save_only_on_last_item_for_entry(cx: &mut TestAppContext) {
 9938        init_test(cx);
 9939
 9940        let fs = FakeFs::new(cx.executor());
 9941        let project = Project::test(fs, [], cx).await;
 9942        let (workspace, cx) =
 9943            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
 9944
 9945        // Create several workspace items with single project entries, and two
 9946        // workspace items with multiple project entries.
 9947        let single_entry_items = (0..=4)
 9948            .map(|project_entry_id| {
 9949                cx.new(|cx| {
 9950                    TestItem::new(cx)
 9951                        .with_dirty(true)
 9952                        .with_project_items(&[dirty_project_item(
 9953                            project_entry_id,
 9954                            &format!("{project_entry_id}.txt"),
 9955                            cx,
 9956                        )])
 9957                })
 9958            })
 9959            .collect::<Vec<_>>();
 9960        let item_2_3 = cx.new(|cx| {
 9961            TestItem::new(cx)
 9962                .with_dirty(true)
 9963                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9964                .with_project_items(&[
 9965                    single_entry_items[2].read(cx).project_items[0].clone(),
 9966                    single_entry_items[3].read(cx).project_items[0].clone(),
 9967                ])
 9968        });
 9969        let item_3_4 = cx.new(|cx| {
 9970            TestItem::new(cx)
 9971                .with_dirty(true)
 9972                .with_buffer_kind(ItemBufferKind::Multibuffer)
 9973                .with_project_items(&[
 9974                    single_entry_items[3].read(cx).project_items[0].clone(),
 9975                    single_entry_items[4].read(cx).project_items[0].clone(),
 9976                ])
 9977        });
 9978
 9979        // Create two panes that contain the following project entries:
 9980        //   left pane:
 9981        //     multi-entry items:   (2, 3)
 9982        //     single-entry items:  0, 2, 3, 4
 9983        //   right pane:
 9984        //     single-entry items:  4, 1
 9985        //     multi-entry items:   (3, 4)
 9986        let (left_pane, right_pane) = workspace.update_in(cx, |workspace, window, cx| {
 9987            let left_pane = workspace.active_pane().clone();
 9988            workspace.add_item_to_active_pane(Box::new(item_2_3.clone()), None, true, window, cx);
 9989            workspace.add_item_to_active_pane(
 9990                single_entry_items[0].boxed_clone(),
 9991                None,
 9992                true,
 9993                window,
 9994                cx,
 9995            );
 9996            workspace.add_item_to_active_pane(
 9997                single_entry_items[2].boxed_clone(),
 9998                None,
 9999                true,
10000                window,
10001                cx,
10002            );
10003            workspace.add_item_to_active_pane(
10004                single_entry_items[3].boxed_clone(),
10005                None,
10006                true,
10007                window,
10008                cx,
10009            );
10010            workspace.add_item_to_active_pane(
10011                single_entry_items[4].boxed_clone(),
10012                None,
10013                true,
10014                window,
10015                cx,
10016            );
10017
10018            let right_pane =
10019                workspace.split_and_clone(left_pane.clone(), SplitDirection::Right, window, cx);
10020
10021            let boxed_clone = single_entry_items[1].boxed_clone();
10022            let right_pane = window.spawn(cx, async move |cx| {
10023                right_pane.await.inspect(|right_pane| {
10024                    right_pane
10025                        .update_in(cx, |pane, window, cx| {
10026                            pane.add_item(boxed_clone, true, true, None, window, cx);
10027                            pane.add_item(Box::new(item_3_4.clone()), true, true, None, window, cx);
10028                        })
10029                        .unwrap();
10030                })
10031            });
10032
10033            (left_pane, right_pane)
10034        });
10035        let right_pane = right_pane.await.unwrap();
10036        cx.focus(&right_pane);
10037
10038        let close = right_pane.update_in(cx, |pane, window, cx| {
10039            pane.close_all_items(&CloseAllItems::default(), window, cx)
10040                .unwrap()
10041        });
10042        cx.executor().run_until_parked();
10043
10044        let msg = cx.pending_prompt().unwrap().0;
10045        assert!(msg.contains("1.txt"));
10046        assert!(!msg.contains("2.txt"));
10047        assert!(!msg.contains("3.txt"));
10048        assert!(!msg.contains("4.txt"));
10049
10050        // With best-effort close, cancelling item 1 keeps it open but items 4
10051        // and (3,4) still close since their entries exist in left pane.
10052        cx.simulate_prompt_answer("Cancel");
10053        close.await;
10054
10055        right_pane.read_with(cx, |pane, _| {
10056            assert_eq!(pane.items_len(), 1);
10057        });
10058
10059        // Remove item 3 from left pane, making (2,3) the only item with entry 3.
10060        left_pane
10061            .update_in(cx, |left_pane, window, cx| {
10062                left_pane.close_item_by_id(
10063                    single_entry_items[3].entity_id(),
10064                    SaveIntent::Skip,
10065                    window,
10066                    cx,
10067                )
10068            })
10069            .await
10070            .unwrap();
10071
10072        let close = left_pane.update_in(cx, |pane, window, cx| {
10073            pane.close_all_items(&CloseAllItems::default(), window, cx)
10074                .unwrap()
10075        });
10076        cx.executor().run_until_parked();
10077
10078        let details = cx.pending_prompt().unwrap().1;
10079        assert!(details.contains("0.txt"));
10080        assert!(details.contains("3.txt"));
10081        assert!(details.contains("4.txt"));
10082        // Ideally 2.txt wouldn't appear since entry 2 still exists in item 2.
10083        // But we can only save whole items, so saving (2,3) for entry 3 includes 2.
10084        // assert!(!details.contains("2.txt"));
10085
10086        cx.simulate_prompt_answer("Save all");
10087        cx.executor().run_until_parked();
10088        close.await;
10089
10090        left_pane.read_with(cx, |pane, _| {
10091            assert_eq!(pane.items_len(), 0);
10092        });
10093    }
10094
10095    #[gpui::test]
10096    async fn test_autosave(cx: &mut gpui::TestAppContext) {
10097        init_test(cx);
10098
10099        let fs = FakeFs::new(cx.executor());
10100        let project = Project::test(fs, [], cx).await;
10101        let (workspace, cx) =
10102            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10103        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10104
10105        let item = cx.new(|cx| {
10106            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10107        });
10108        let item_id = item.entity_id();
10109        workspace.update_in(cx, |workspace, window, cx| {
10110            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10111        });
10112
10113        // Autosave on window change.
10114        item.update(cx, |item, cx| {
10115            SettingsStore::update_global(cx, |settings, cx| {
10116                settings.update_user_settings(cx, |settings| {
10117                    settings.workspace.autosave = Some(AutosaveSetting::OnWindowChange);
10118                })
10119            });
10120            item.is_dirty = true;
10121        });
10122
10123        // Deactivating the window saves the file.
10124        cx.deactivate_window();
10125        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10126
10127        // Re-activating the window doesn't save the file.
10128        cx.update(|window, _| window.activate_window());
10129        cx.executor().run_until_parked();
10130        item.read_with(cx, |item, _| assert_eq!(item.save_count, 1));
10131
10132        // Autosave on focus change.
10133        item.update_in(cx, |item, window, cx| {
10134            cx.focus_self(window);
10135            SettingsStore::update_global(cx, |settings, cx| {
10136                settings.update_user_settings(cx, |settings| {
10137                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10138                })
10139            });
10140            item.is_dirty = true;
10141        });
10142        // Blurring the item saves the file.
10143        item.update_in(cx, |_, window, _| window.blur());
10144        cx.executor().run_until_parked();
10145        item.read_with(cx, |item, _| assert_eq!(item.save_count, 2));
10146
10147        // Deactivating the window still saves the file.
10148        item.update_in(cx, |item, window, cx| {
10149            cx.focus_self(window);
10150            item.is_dirty = true;
10151        });
10152        cx.deactivate_window();
10153        item.update(cx, |item, _| assert_eq!(item.save_count, 3));
10154
10155        // Autosave after delay.
10156        item.update(cx, |item, cx| {
10157            SettingsStore::update_global(cx, |settings, cx| {
10158                settings.update_user_settings(cx, |settings| {
10159                    settings.workspace.autosave = Some(AutosaveSetting::AfterDelay {
10160                        milliseconds: 500.into(),
10161                    });
10162                })
10163            });
10164            item.is_dirty = true;
10165            cx.emit(ItemEvent::Edit);
10166        });
10167
10168        // Delay hasn't fully expired, so the file is still dirty and unsaved.
10169        cx.executor().advance_clock(Duration::from_millis(250));
10170        item.read_with(cx, |item, _| assert_eq!(item.save_count, 3));
10171
10172        // After delay expires, the file is saved.
10173        cx.executor().advance_clock(Duration::from_millis(250));
10174        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10175
10176        // Autosave after delay, should save earlier than delay if tab is closed
10177        item.update(cx, |item, cx| {
10178            item.is_dirty = true;
10179            cx.emit(ItemEvent::Edit);
10180        });
10181        cx.executor().advance_clock(Duration::from_millis(250));
10182        item.read_with(cx, |item, _| assert_eq!(item.save_count, 4));
10183
10184        // // Ensure auto save with delay saves the item on close, even if the timer hasn't yet run out.
10185        pane.update_in(cx, |pane, window, cx| {
10186            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10187        })
10188        .await
10189        .unwrap();
10190        assert!(!cx.has_pending_prompt());
10191        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10192
10193        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10194        workspace.update_in(cx, |workspace, window, cx| {
10195            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10196        });
10197        item.update_in(cx, |item, _window, cx| {
10198            item.is_dirty = true;
10199            for project_item in &mut item.project_items {
10200                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10201            }
10202        });
10203        cx.run_until_parked();
10204        item.read_with(cx, |item, _| assert_eq!(item.save_count, 5));
10205
10206        // Autosave on focus change, ensuring closing the tab counts as such.
10207        item.update(cx, |item, cx| {
10208            SettingsStore::update_global(cx, |settings, cx| {
10209                settings.update_user_settings(cx, |settings| {
10210                    settings.workspace.autosave = Some(AutosaveSetting::OnFocusChange);
10211                })
10212            });
10213            item.is_dirty = true;
10214            for project_item in &mut item.project_items {
10215                project_item.update(cx, |project_item, _| project_item.is_dirty = true);
10216            }
10217        });
10218
10219        pane.update_in(cx, |pane, window, cx| {
10220            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10221        })
10222        .await
10223        .unwrap();
10224        assert!(!cx.has_pending_prompt());
10225        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10226
10227        // Add the item again, ensuring autosave is prevented if the underlying file has been deleted.
10228        workspace.update_in(cx, |workspace, window, cx| {
10229            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10230        });
10231        item.update_in(cx, |item, window, cx| {
10232            item.project_items[0].update(cx, |item, _| {
10233                item.entry_id = None;
10234            });
10235            item.is_dirty = true;
10236            window.blur();
10237        });
10238        cx.run_until_parked();
10239        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10240
10241        // Ensure autosave is prevented for deleted files also when closing the buffer.
10242        let _close_items = pane.update_in(cx, |pane, window, cx| {
10243            pane.close_items(window, cx, SaveIntent::Close, move |id| id == item_id)
10244        });
10245        cx.run_until_parked();
10246        assert!(cx.has_pending_prompt());
10247        item.read_with(cx, |item, _| assert_eq!(item.save_count, 6));
10248    }
10249
10250    #[gpui::test]
10251    async fn test_pane_navigation(cx: &mut gpui::TestAppContext) {
10252        init_test(cx);
10253
10254        let fs = FakeFs::new(cx.executor());
10255
10256        let project = Project::test(fs, [], cx).await;
10257        let (workspace, cx) =
10258            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10259
10260        let item = cx.new(|cx| {
10261            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "1.txt", cx)])
10262        });
10263        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10264        let toolbar = pane.read_with(cx, |pane, _| pane.toolbar().clone());
10265        let toolbar_notify_count = Rc::new(RefCell::new(0));
10266
10267        workspace.update_in(cx, |workspace, window, cx| {
10268            workspace.add_item_to_active_pane(Box::new(item.clone()), None, true, window, cx);
10269            let toolbar_notification_count = toolbar_notify_count.clone();
10270            cx.observe_in(&toolbar, window, move |_, _, _, _| {
10271                *toolbar_notification_count.borrow_mut() += 1
10272            })
10273            .detach();
10274        });
10275
10276        pane.read_with(cx, |pane, _| {
10277            assert!(!pane.can_navigate_backward());
10278            assert!(!pane.can_navigate_forward());
10279        });
10280
10281        item.update_in(cx, |item, _, cx| {
10282            item.set_state("one".to_string(), cx);
10283        });
10284
10285        // Toolbar must be notified to re-render the navigation buttons
10286        assert_eq!(*toolbar_notify_count.borrow(), 1);
10287
10288        pane.read_with(cx, |pane, _| {
10289            assert!(pane.can_navigate_backward());
10290            assert!(!pane.can_navigate_forward());
10291        });
10292
10293        workspace
10294            .update_in(cx, |workspace, window, cx| {
10295                workspace.go_back(pane.downgrade(), window, cx)
10296            })
10297            .await
10298            .unwrap();
10299
10300        assert_eq!(*toolbar_notify_count.borrow(), 2);
10301        pane.read_with(cx, |pane, _| {
10302            assert!(!pane.can_navigate_backward());
10303            assert!(pane.can_navigate_forward());
10304        });
10305    }
10306
10307    #[gpui::test]
10308    async fn test_toggle_docks_and_panels(cx: &mut gpui::TestAppContext) {
10309        init_test(cx);
10310        let fs = FakeFs::new(cx.executor());
10311
10312        let project = Project::test(fs, [], cx).await;
10313        let (workspace, cx) =
10314            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10315
10316        let panel = workspace.update_in(cx, |workspace, window, cx| {
10317            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
10318            workspace.add_panel(panel.clone(), window, cx);
10319
10320            workspace
10321                .right_dock()
10322                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
10323
10324            panel
10325        });
10326
10327        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
10328        pane.update_in(cx, |pane, window, cx| {
10329            let item = cx.new(TestItem::new);
10330            pane.add_item(Box::new(item), true, true, None, window, cx);
10331        });
10332
10333        // Transfer focus from center to panel
10334        workspace.update_in(cx, |workspace, window, cx| {
10335            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10336        });
10337
10338        workspace.update_in(cx, |workspace, window, cx| {
10339            assert!(workspace.right_dock().read(cx).is_open());
10340            assert!(!panel.is_zoomed(window, cx));
10341            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10342        });
10343
10344        // Transfer focus from panel to center
10345        workspace.update_in(cx, |workspace, window, cx| {
10346            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10347        });
10348
10349        workspace.update_in(cx, |workspace, window, cx| {
10350            assert!(workspace.right_dock().read(cx).is_open());
10351            assert!(!panel.is_zoomed(window, cx));
10352            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10353        });
10354
10355        // Close the dock
10356        workspace.update_in(cx, |workspace, window, cx| {
10357            workspace.toggle_dock(DockPosition::Right, window, cx);
10358        });
10359
10360        workspace.update_in(cx, |workspace, window, cx| {
10361            assert!(!workspace.right_dock().read(cx).is_open());
10362            assert!(!panel.is_zoomed(window, cx));
10363            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10364        });
10365
10366        // Open the dock
10367        workspace.update_in(cx, |workspace, window, cx| {
10368            workspace.toggle_dock(DockPosition::Right, window, cx);
10369        });
10370
10371        workspace.update_in(cx, |workspace, window, cx| {
10372            assert!(workspace.right_dock().read(cx).is_open());
10373            assert!(!panel.is_zoomed(window, cx));
10374            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10375        });
10376
10377        // Focus and zoom panel
10378        panel.update_in(cx, |panel, window, cx| {
10379            cx.focus_self(window);
10380            panel.set_zoomed(true, window, cx)
10381        });
10382
10383        workspace.update_in(cx, |workspace, window, cx| {
10384            assert!(workspace.right_dock().read(cx).is_open());
10385            assert!(panel.is_zoomed(window, cx));
10386            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10387        });
10388
10389        // Transfer focus to the center closes the dock
10390        workspace.update_in(cx, |workspace, window, cx| {
10391            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10392        });
10393
10394        workspace.update_in(cx, |workspace, window, cx| {
10395            assert!(!workspace.right_dock().read(cx).is_open());
10396            assert!(panel.is_zoomed(window, cx));
10397            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10398        });
10399
10400        // Transferring focus back to the panel keeps it zoomed
10401        workspace.update_in(cx, |workspace, window, cx| {
10402            workspace.toggle_panel_focus::<TestPanel>(window, cx);
10403        });
10404
10405        workspace.update_in(cx, |workspace, window, cx| {
10406            assert!(workspace.right_dock().read(cx).is_open());
10407            assert!(panel.is_zoomed(window, cx));
10408            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10409        });
10410
10411        // Close the dock while it is zoomed
10412        workspace.update_in(cx, |workspace, window, cx| {
10413            workspace.toggle_dock(DockPosition::Right, window, cx)
10414        });
10415
10416        workspace.update_in(cx, |workspace, window, cx| {
10417            assert!(!workspace.right_dock().read(cx).is_open());
10418            assert!(panel.is_zoomed(window, cx));
10419            assert!(workspace.zoomed.is_none());
10420            assert!(!panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10421        });
10422
10423        // Opening the dock, when it's zoomed, retains focus
10424        workspace.update_in(cx, |workspace, window, cx| {
10425            workspace.toggle_dock(DockPosition::Right, window, cx)
10426        });
10427
10428        workspace.update_in(cx, |workspace, window, cx| {
10429            assert!(workspace.right_dock().read(cx).is_open());
10430            assert!(panel.is_zoomed(window, cx));
10431            assert!(workspace.zoomed.is_some());
10432            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
10433        });
10434
10435        // Unzoom and close the panel, zoom the active pane.
10436        panel.update_in(cx, |panel, window, cx| panel.set_zoomed(false, window, cx));
10437        workspace.update_in(cx, |workspace, window, cx| {
10438            workspace.toggle_dock(DockPosition::Right, window, cx)
10439        });
10440        pane.update_in(cx, |pane, window, cx| {
10441            pane.toggle_zoom(&Default::default(), window, cx)
10442        });
10443
10444        // Opening a dock unzooms the pane.
10445        workspace.update_in(cx, |workspace, window, cx| {
10446            workspace.toggle_dock(DockPosition::Right, window, cx)
10447        });
10448        workspace.update_in(cx, |workspace, window, cx| {
10449            let pane = pane.read(cx);
10450            assert!(!pane.is_zoomed());
10451            assert!(!pane.focus_handle(cx).is_focused(window));
10452            assert!(workspace.right_dock().read(cx).is_open());
10453            assert!(workspace.zoomed.is_none());
10454        });
10455    }
10456
10457    #[gpui::test]
10458    async fn test_pane_zoom_in_out(cx: &mut TestAppContext) {
10459        init_test(cx);
10460        let fs = FakeFs::new(cx.executor());
10461
10462        let project = Project::test(fs, [], cx).await;
10463        let (workspace, cx) =
10464            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10465
10466        let pane = workspace.update_in(cx, |workspace, _window, _cx| {
10467            workspace.active_pane().clone()
10468        });
10469
10470        // Add an item to the pane so it can be zoomed
10471        workspace.update_in(cx, |workspace, window, cx| {
10472            let item = cx.new(TestItem::new);
10473            workspace.add_item(pane.clone(), Box::new(item), None, true, true, window, cx);
10474        });
10475
10476        // Initially not zoomed
10477        workspace.update_in(cx, |workspace, _window, cx| {
10478            assert!(!pane.read(cx).is_zoomed(), "Pane starts unzoomed");
10479            assert!(
10480                workspace.zoomed.is_none(),
10481                "Workspace should track no zoomed pane"
10482            );
10483            assert!(pane.read(cx).items_len() > 0, "Pane should have items");
10484        });
10485
10486        // Zoom In
10487        pane.update_in(cx, |pane, window, cx| {
10488            pane.zoom_in(&crate::ZoomIn, window, cx);
10489        });
10490
10491        workspace.update_in(cx, |workspace, window, cx| {
10492            assert!(
10493                pane.read(cx).is_zoomed(),
10494                "Pane should be zoomed after ZoomIn"
10495            );
10496            assert!(
10497                workspace.zoomed.is_some(),
10498                "Workspace should track the zoomed pane"
10499            );
10500            assert!(
10501                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10502                "ZoomIn should focus the pane"
10503            );
10504        });
10505
10506        // Zoom In again is a no-op
10507        pane.update_in(cx, |pane, window, cx| {
10508            pane.zoom_in(&crate::ZoomIn, window, cx);
10509        });
10510
10511        workspace.update_in(cx, |workspace, window, cx| {
10512            assert!(pane.read(cx).is_zoomed(), "Second ZoomIn keeps pane zoomed");
10513            assert!(
10514                workspace.zoomed.is_some(),
10515                "Workspace still tracks zoomed pane"
10516            );
10517            assert!(
10518                pane.read(cx).focus_handle(cx).contains_focused(window, cx),
10519                "Pane remains focused after repeated ZoomIn"
10520            );
10521        });
10522
10523        // Zoom Out
10524        pane.update_in(cx, |pane, window, cx| {
10525            pane.zoom_out(&crate::ZoomOut, window, cx);
10526        });
10527
10528        workspace.update_in(cx, |workspace, _window, cx| {
10529            assert!(
10530                !pane.read(cx).is_zoomed(),
10531                "Pane should unzoom after ZoomOut"
10532            );
10533            assert!(
10534                workspace.zoomed.is_none(),
10535                "Workspace clears zoom tracking after ZoomOut"
10536            );
10537        });
10538
10539        // Zoom Out again is a no-op
10540        pane.update_in(cx, |pane, window, cx| {
10541            pane.zoom_out(&crate::ZoomOut, window, cx);
10542        });
10543
10544        workspace.update_in(cx, |workspace, _window, cx| {
10545            assert!(
10546                !pane.read(cx).is_zoomed(),
10547                "Second ZoomOut keeps pane unzoomed"
10548            );
10549            assert!(
10550                workspace.zoomed.is_none(),
10551                "Workspace remains without zoomed pane"
10552            );
10553        });
10554    }
10555
10556    #[gpui::test]
10557    async fn test_toggle_all_docks(cx: &mut gpui::TestAppContext) {
10558        init_test(cx);
10559        let fs = FakeFs::new(cx.executor());
10560
10561        let project = Project::test(fs, [], cx).await;
10562        let (workspace, cx) =
10563            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10564        workspace.update_in(cx, |workspace, window, cx| {
10565            // Open two docks
10566            let left_dock = workspace.dock_at_position(DockPosition::Left);
10567            let right_dock = workspace.dock_at_position(DockPosition::Right);
10568
10569            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10570            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10571
10572            assert!(left_dock.read(cx).is_open());
10573            assert!(right_dock.read(cx).is_open());
10574        });
10575
10576        workspace.update_in(cx, |workspace, window, cx| {
10577            // Toggle all docks - should close both
10578            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10579
10580            let left_dock = workspace.dock_at_position(DockPosition::Left);
10581            let right_dock = workspace.dock_at_position(DockPosition::Right);
10582            assert!(!left_dock.read(cx).is_open());
10583            assert!(!right_dock.read(cx).is_open());
10584        });
10585
10586        workspace.update_in(cx, |workspace, window, cx| {
10587            // Toggle again - should reopen both
10588            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10589
10590            let left_dock = workspace.dock_at_position(DockPosition::Left);
10591            let right_dock = workspace.dock_at_position(DockPosition::Right);
10592            assert!(left_dock.read(cx).is_open());
10593            assert!(right_dock.read(cx).is_open());
10594        });
10595    }
10596
10597    #[gpui::test]
10598    async fn test_toggle_all_with_manual_close(cx: &mut gpui::TestAppContext) {
10599        init_test(cx);
10600        let fs = FakeFs::new(cx.executor());
10601
10602        let project = Project::test(fs, [], cx).await;
10603        let (workspace, cx) =
10604            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10605        workspace.update_in(cx, |workspace, window, cx| {
10606            // Open two docks
10607            let left_dock = workspace.dock_at_position(DockPosition::Left);
10608            let right_dock = workspace.dock_at_position(DockPosition::Right);
10609
10610            left_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10611            right_dock.update(cx, |dock, cx| dock.set_open(true, window, cx));
10612
10613            assert!(left_dock.read(cx).is_open());
10614            assert!(right_dock.read(cx).is_open());
10615        });
10616
10617        workspace.update_in(cx, |workspace, window, cx| {
10618            // Close them manually
10619            workspace.toggle_dock(DockPosition::Left, window, cx);
10620            workspace.toggle_dock(DockPosition::Right, window, cx);
10621
10622            let left_dock = workspace.dock_at_position(DockPosition::Left);
10623            let right_dock = workspace.dock_at_position(DockPosition::Right);
10624            assert!(!left_dock.read(cx).is_open());
10625            assert!(!right_dock.read(cx).is_open());
10626        });
10627
10628        workspace.update_in(cx, |workspace, window, cx| {
10629            // Toggle all docks - only last closed (right dock) should reopen
10630            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10631
10632            let left_dock = workspace.dock_at_position(DockPosition::Left);
10633            let right_dock = workspace.dock_at_position(DockPosition::Right);
10634            assert!(!left_dock.read(cx).is_open());
10635            assert!(right_dock.read(cx).is_open());
10636        });
10637    }
10638
10639    #[gpui::test]
10640    async fn test_toggle_all_docks_after_dock_move(cx: &mut gpui::TestAppContext) {
10641        init_test(cx);
10642        let fs = FakeFs::new(cx.executor());
10643        let project = Project::test(fs, [], cx).await;
10644        let (workspace, cx) =
10645            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10646
10647        // Open two docks (left and right) with one panel each
10648        let (left_panel, right_panel) = workspace.update_in(cx, |workspace, window, cx| {
10649            let left_panel = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
10650            workspace.add_panel(left_panel.clone(), window, cx);
10651
10652            let right_panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
10653            workspace.add_panel(right_panel.clone(), window, cx);
10654
10655            workspace.toggle_dock(DockPosition::Left, window, cx);
10656            workspace.toggle_dock(DockPosition::Right, window, cx);
10657
10658            // Verify initial state
10659            assert!(
10660                workspace.left_dock().read(cx).is_open(),
10661                "Left dock should be open"
10662            );
10663            assert_eq!(
10664                workspace
10665                    .left_dock()
10666                    .read(cx)
10667                    .visible_panel()
10668                    .unwrap()
10669                    .panel_id(),
10670                left_panel.panel_id(),
10671                "Left panel should be visible in left dock"
10672            );
10673            assert!(
10674                workspace.right_dock().read(cx).is_open(),
10675                "Right dock should be open"
10676            );
10677            assert_eq!(
10678                workspace
10679                    .right_dock()
10680                    .read(cx)
10681                    .visible_panel()
10682                    .unwrap()
10683                    .panel_id(),
10684                right_panel.panel_id(),
10685                "Right panel should be visible in right dock"
10686            );
10687            assert!(
10688                !workspace.bottom_dock().read(cx).is_open(),
10689                "Bottom dock should be closed"
10690            );
10691
10692            (left_panel, right_panel)
10693        });
10694
10695        // Focus the left panel and move it to the next position (bottom dock)
10696        workspace.update_in(cx, |workspace, window, cx| {
10697            workspace.toggle_panel_focus::<TestPanel>(window, cx); // Focus left panel
10698            assert!(
10699                left_panel.read(cx).focus_handle(cx).is_focused(window),
10700                "Left panel should be focused"
10701            );
10702        });
10703
10704        cx.dispatch_action(MoveFocusedPanelToNextPosition);
10705
10706        // Verify the left panel has moved to the bottom dock, and the bottom dock is now open
10707        workspace.update(cx, |workspace, cx| {
10708            assert!(
10709                !workspace.left_dock().read(cx).is_open(),
10710                "Left dock should be closed"
10711            );
10712            assert!(
10713                workspace.bottom_dock().read(cx).is_open(),
10714                "Bottom dock should now be open"
10715            );
10716            assert_eq!(
10717                left_panel.read(cx).position,
10718                DockPosition::Bottom,
10719                "Left panel should now be in the bottom dock"
10720            );
10721            assert_eq!(
10722                workspace
10723                    .bottom_dock()
10724                    .read(cx)
10725                    .visible_panel()
10726                    .unwrap()
10727                    .panel_id(),
10728                left_panel.panel_id(),
10729                "Left panel should be the visible panel in the bottom dock"
10730            );
10731        });
10732
10733        // Toggle all docks off
10734        workspace.update_in(cx, |workspace, window, cx| {
10735            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10736            assert!(
10737                !workspace.left_dock().read(cx).is_open(),
10738                "Left dock should be closed"
10739            );
10740            assert!(
10741                !workspace.right_dock().read(cx).is_open(),
10742                "Right dock should be closed"
10743            );
10744            assert!(
10745                !workspace.bottom_dock().read(cx).is_open(),
10746                "Bottom dock should be closed"
10747            );
10748        });
10749
10750        // Toggle all docks back on and verify positions are restored
10751        workspace.update_in(cx, |workspace, window, cx| {
10752            workspace.toggle_all_docks(&ToggleAllDocks, window, cx);
10753            assert!(
10754                !workspace.left_dock().read(cx).is_open(),
10755                "Left dock should remain closed"
10756            );
10757            assert!(
10758                workspace.right_dock().read(cx).is_open(),
10759                "Right dock should remain open"
10760            );
10761            assert!(
10762                workspace.bottom_dock().read(cx).is_open(),
10763                "Bottom dock should remain open"
10764            );
10765            assert_eq!(
10766                left_panel.read(cx).position,
10767                DockPosition::Bottom,
10768                "Left panel should remain in the bottom dock"
10769            );
10770            assert_eq!(
10771                right_panel.read(cx).position,
10772                DockPosition::Right,
10773                "Right panel should remain in the right dock"
10774            );
10775            assert_eq!(
10776                workspace
10777                    .bottom_dock()
10778                    .read(cx)
10779                    .visible_panel()
10780                    .unwrap()
10781                    .panel_id(),
10782                left_panel.panel_id(),
10783                "Left panel should be the visible panel in the right dock"
10784            );
10785        });
10786    }
10787
10788    #[gpui::test]
10789    async fn test_join_pane_into_next(cx: &mut gpui::TestAppContext) {
10790        init_test(cx);
10791
10792        let fs = FakeFs::new(cx.executor());
10793
10794        let project = Project::test(fs, None, cx).await;
10795        let (workspace, cx) =
10796            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
10797
10798        // Let's arrange the panes like this:
10799        //
10800        // +-----------------------+
10801        // |         top           |
10802        // +------+--------+-------+
10803        // | left | center | right |
10804        // +------+--------+-------+
10805        // |        bottom         |
10806        // +-----------------------+
10807
10808        let top_item = cx.new(|cx| {
10809            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "top.txt", cx)])
10810        });
10811        let bottom_item = cx.new(|cx| {
10812            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "bottom.txt", cx)])
10813        });
10814        let left_item = cx.new(|cx| {
10815            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "left.txt", cx)])
10816        });
10817        let right_item = cx.new(|cx| {
10818            TestItem::new(cx).with_project_items(&[TestProjectItem::new(4, "right.txt", cx)])
10819        });
10820        let center_item = cx.new(|cx| {
10821            TestItem::new(cx).with_project_items(&[TestProjectItem::new(5, "center.txt", cx)])
10822        });
10823
10824        let top_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10825            let top_pane_id = workspace.active_pane().entity_id();
10826            workspace.add_item_to_active_pane(Box::new(top_item.clone()), None, false, window, cx);
10827            workspace.split_pane(
10828                workspace.active_pane().clone(),
10829                SplitDirection::Down,
10830                window,
10831                cx,
10832            );
10833            top_pane_id
10834        });
10835        let bottom_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10836            let bottom_pane_id = workspace.active_pane().entity_id();
10837            workspace.add_item_to_active_pane(
10838                Box::new(bottom_item.clone()),
10839                None,
10840                false,
10841                window,
10842                cx,
10843            );
10844            workspace.split_pane(
10845                workspace.active_pane().clone(),
10846                SplitDirection::Up,
10847                window,
10848                cx,
10849            );
10850            bottom_pane_id
10851        });
10852        let left_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10853            let left_pane_id = workspace.active_pane().entity_id();
10854            workspace.add_item_to_active_pane(Box::new(left_item.clone()), None, false, window, cx);
10855            workspace.split_pane(
10856                workspace.active_pane().clone(),
10857                SplitDirection::Right,
10858                window,
10859                cx,
10860            );
10861            left_pane_id
10862        });
10863        let right_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10864            let right_pane_id = workspace.active_pane().entity_id();
10865            workspace.add_item_to_active_pane(
10866                Box::new(right_item.clone()),
10867                None,
10868                false,
10869                window,
10870                cx,
10871            );
10872            workspace.split_pane(
10873                workspace.active_pane().clone(),
10874                SplitDirection::Left,
10875                window,
10876                cx,
10877            );
10878            right_pane_id
10879        });
10880        let center_pane_id = workspace.update_in(cx, |workspace, window, cx| {
10881            let center_pane_id = workspace.active_pane().entity_id();
10882            workspace.add_item_to_active_pane(
10883                Box::new(center_item.clone()),
10884                None,
10885                false,
10886                window,
10887                cx,
10888            );
10889            center_pane_id
10890        });
10891        cx.executor().run_until_parked();
10892
10893        workspace.update_in(cx, |workspace, window, cx| {
10894            assert_eq!(center_pane_id, workspace.active_pane().entity_id());
10895
10896            // Join into next from center pane into right
10897            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10898        });
10899
10900        workspace.update_in(cx, |workspace, window, cx| {
10901            let active_pane = workspace.active_pane();
10902            assert_eq!(right_pane_id, active_pane.entity_id());
10903            assert_eq!(2, active_pane.read(cx).items_len());
10904            let item_ids_in_pane =
10905                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10906            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10907            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10908
10909            // Join into next from right pane into bottom
10910            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10911        });
10912
10913        workspace.update_in(cx, |workspace, window, cx| {
10914            let active_pane = workspace.active_pane();
10915            assert_eq!(bottom_pane_id, active_pane.entity_id());
10916            assert_eq!(3, active_pane.read(cx).items_len());
10917            let item_ids_in_pane =
10918                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10919            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10920            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10921            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10922
10923            // Join into next from bottom pane into left
10924            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10925        });
10926
10927        workspace.update_in(cx, |workspace, window, cx| {
10928            let active_pane = workspace.active_pane();
10929            assert_eq!(left_pane_id, active_pane.entity_id());
10930            assert_eq!(4, active_pane.read(cx).items_len());
10931            let item_ids_in_pane =
10932                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10933            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10934            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10935            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10936            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10937
10938            // Join into next from left pane into top
10939            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx);
10940        });
10941
10942        workspace.update_in(cx, |workspace, window, cx| {
10943            let active_pane = workspace.active_pane();
10944            assert_eq!(top_pane_id, active_pane.entity_id());
10945            assert_eq!(5, active_pane.read(cx).items_len());
10946            let item_ids_in_pane =
10947                HashSet::from_iter(active_pane.read(cx).items().map(|item| item.item_id()));
10948            assert!(item_ids_in_pane.contains(&center_item.item_id()));
10949            assert!(item_ids_in_pane.contains(&right_item.item_id()));
10950            assert!(item_ids_in_pane.contains(&bottom_item.item_id()));
10951            assert!(item_ids_in_pane.contains(&left_item.item_id()));
10952            assert!(item_ids_in_pane.contains(&top_item.item_id()));
10953
10954            // Single pane left: no-op
10955            workspace.join_pane_into_next(workspace.active_pane().clone(), window, cx)
10956        });
10957
10958        workspace.update(cx, |workspace, _cx| {
10959            let active_pane = workspace.active_pane();
10960            assert_eq!(top_pane_id, active_pane.entity_id());
10961        });
10962    }
10963
10964    fn add_an_item_to_active_pane(
10965        cx: &mut VisualTestContext,
10966        workspace: &Entity<Workspace>,
10967        item_id: u64,
10968    ) -> Entity<TestItem> {
10969        let item = cx.new(|cx| {
10970            TestItem::new(cx).with_project_items(&[TestProjectItem::new(
10971                item_id,
10972                "item{item_id}.txt",
10973                cx,
10974            )])
10975        });
10976        workspace.update_in(cx, |workspace, window, cx| {
10977            workspace.add_item_to_active_pane(Box::new(item.clone()), None, false, window, cx);
10978        });
10979        item
10980    }
10981
10982    fn split_pane(cx: &mut VisualTestContext, workspace: &Entity<Workspace>) -> Entity<Pane> {
10983        workspace.update_in(cx, |workspace, window, cx| {
10984            workspace.split_pane(
10985                workspace.active_pane().clone(),
10986                SplitDirection::Right,
10987                window,
10988                cx,
10989            )
10990        })
10991    }
10992
10993    #[gpui::test]
10994    async fn test_join_all_panes(cx: &mut gpui::TestAppContext) {
10995        init_test(cx);
10996        let fs = FakeFs::new(cx.executor());
10997        let project = Project::test(fs, None, cx).await;
10998        let (workspace, cx) =
10999            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11000
11001        add_an_item_to_active_pane(cx, &workspace, 1);
11002        split_pane(cx, &workspace);
11003        add_an_item_to_active_pane(cx, &workspace, 2);
11004        split_pane(cx, &workspace); // empty pane
11005        split_pane(cx, &workspace);
11006        let last_item = add_an_item_to_active_pane(cx, &workspace, 3);
11007
11008        cx.executor().run_until_parked();
11009
11010        workspace.update(cx, |workspace, cx| {
11011            let num_panes = workspace.panes().len();
11012            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11013            let active_item = workspace
11014                .active_pane()
11015                .read(cx)
11016                .active_item()
11017                .expect("item is in focus");
11018
11019            assert_eq!(num_panes, 4);
11020            assert_eq!(num_items_in_current_pane, 1);
11021            assert_eq!(active_item.item_id(), last_item.item_id());
11022        });
11023
11024        workspace.update_in(cx, |workspace, window, cx| {
11025            workspace.join_all_panes(window, cx);
11026        });
11027
11028        workspace.update(cx, |workspace, cx| {
11029            let num_panes = workspace.panes().len();
11030            let num_items_in_current_pane = workspace.active_pane().read(cx).items().count();
11031            let active_item = workspace
11032                .active_pane()
11033                .read(cx)
11034                .active_item()
11035                .expect("item is in focus");
11036
11037            assert_eq!(num_panes, 1);
11038            assert_eq!(num_items_in_current_pane, 3);
11039            assert_eq!(active_item.item_id(), last_item.item_id());
11040        });
11041    }
11042    struct TestModal(FocusHandle);
11043
11044    impl TestModal {
11045        fn new(_: &mut Window, cx: &mut Context<Self>) -> Self {
11046            Self(cx.focus_handle())
11047        }
11048    }
11049
11050    impl EventEmitter<DismissEvent> for TestModal {}
11051
11052    impl Focusable for TestModal {
11053        fn focus_handle(&self, _cx: &App) -> FocusHandle {
11054            self.0.clone()
11055        }
11056    }
11057
11058    impl ModalView for TestModal {}
11059
11060    impl Render for TestModal {
11061        fn render(
11062            &mut self,
11063            _window: &mut Window,
11064            _cx: &mut Context<TestModal>,
11065        ) -> impl IntoElement {
11066            div().track_focus(&self.0)
11067        }
11068    }
11069
11070    #[gpui::test]
11071    async fn test_panels(cx: &mut gpui::TestAppContext) {
11072        init_test(cx);
11073        let fs = FakeFs::new(cx.executor());
11074
11075        let project = Project::test(fs, [], cx).await;
11076        let (workspace, cx) =
11077            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11078
11079        let (panel_1, panel_2) = workspace.update_in(cx, |workspace, window, cx| {
11080            let panel_1 = cx.new(|cx| TestPanel::new(DockPosition::Left, 100, cx));
11081            workspace.add_panel(panel_1.clone(), window, cx);
11082            workspace.toggle_dock(DockPosition::Left, window, cx);
11083            let panel_2 = cx.new(|cx| TestPanel::new(DockPosition::Right, 101, cx));
11084            workspace.add_panel(panel_2.clone(), window, cx);
11085            workspace.toggle_dock(DockPosition::Right, window, cx);
11086
11087            let left_dock = workspace.left_dock();
11088            assert_eq!(
11089                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11090                panel_1.panel_id()
11091            );
11092            assert_eq!(
11093                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11094                panel_1.size(window, cx)
11095            );
11096
11097            left_dock.update(cx, |left_dock, cx| {
11098                left_dock.resize_active_panel(Some(px(1337.)), window, cx)
11099            });
11100            assert_eq!(
11101                workspace
11102                    .right_dock()
11103                    .read(cx)
11104                    .visible_panel()
11105                    .unwrap()
11106                    .panel_id(),
11107                panel_2.panel_id(),
11108            );
11109
11110            (panel_1, panel_2)
11111        });
11112
11113        // Move panel_1 to the right
11114        panel_1.update_in(cx, |panel_1, window, cx| {
11115            panel_1.set_position(DockPosition::Right, window, cx)
11116        });
11117
11118        workspace.update_in(cx, |workspace, window, cx| {
11119            // Since panel_1 was visible on the left, it should now be visible now that it's been moved to the right.
11120            // Since it was the only panel on the left, the left dock should now be closed.
11121            assert!(!workspace.left_dock().read(cx).is_open());
11122            assert!(workspace.left_dock().read(cx).visible_panel().is_none());
11123            let right_dock = workspace.right_dock();
11124            assert_eq!(
11125                right_dock.read(cx).visible_panel().unwrap().panel_id(),
11126                panel_1.panel_id()
11127            );
11128            assert_eq!(
11129                right_dock.read(cx).active_panel_size(window, cx).unwrap(),
11130                px(1337.)
11131            );
11132
11133            // Now we move panel_2 to the left
11134            panel_2.set_position(DockPosition::Left, window, cx);
11135        });
11136
11137        workspace.update(cx, |workspace, cx| {
11138            // Since panel_2 was not visible on the right, we don't open the left dock.
11139            assert!(!workspace.left_dock().read(cx).is_open());
11140            // And the right dock is unaffected in its displaying of panel_1
11141            assert!(workspace.right_dock().read(cx).is_open());
11142            assert_eq!(
11143                workspace
11144                    .right_dock()
11145                    .read(cx)
11146                    .visible_panel()
11147                    .unwrap()
11148                    .panel_id(),
11149                panel_1.panel_id(),
11150            );
11151        });
11152
11153        // Move panel_1 back to the left
11154        panel_1.update_in(cx, |panel_1, window, cx| {
11155            panel_1.set_position(DockPosition::Left, window, cx)
11156        });
11157
11158        workspace.update_in(cx, |workspace, window, cx| {
11159            // Since panel_1 was visible on the right, we open the left dock and make panel_1 active.
11160            let left_dock = workspace.left_dock();
11161            assert!(left_dock.read(cx).is_open());
11162            assert_eq!(
11163                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11164                panel_1.panel_id()
11165            );
11166            assert_eq!(
11167                left_dock.read(cx).active_panel_size(window, cx).unwrap(),
11168                px(1337.)
11169            );
11170            // And the right dock should be closed as it no longer has any panels.
11171            assert!(!workspace.right_dock().read(cx).is_open());
11172
11173            // Now we move panel_1 to the bottom
11174            panel_1.set_position(DockPosition::Bottom, window, cx);
11175        });
11176
11177        workspace.update_in(cx, |workspace, window, cx| {
11178            // Since panel_1 was visible on the left, we close the left dock.
11179            assert!(!workspace.left_dock().read(cx).is_open());
11180            // The bottom dock is sized based on the panel's default size,
11181            // since the panel orientation changed from vertical to horizontal.
11182            let bottom_dock = workspace.bottom_dock();
11183            assert_eq!(
11184                bottom_dock.read(cx).active_panel_size(window, cx).unwrap(),
11185                panel_1.size(window, cx),
11186            );
11187            // Close bottom dock and move panel_1 back to the left.
11188            bottom_dock.update(cx, |bottom_dock, cx| {
11189                bottom_dock.set_open(false, window, cx)
11190            });
11191            panel_1.set_position(DockPosition::Left, window, cx);
11192        });
11193
11194        // Emit activated event on panel 1
11195        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Activate));
11196
11197        // Now the left dock is open and panel_1 is active and focused.
11198        workspace.update_in(cx, |workspace, window, cx| {
11199            let left_dock = workspace.left_dock();
11200            assert!(left_dock.read(cx).is_open());
11201            assert_eq!(
11202                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11203                panel_1.panel_id(),
11204            );
11205            assert!(panel_1.focus_handle(cx).is_focused(window));
11206        });
11207
11208        // Emit closed event on panel 2, which is not active
11209        panel_2.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11210
11211        // Wo don't close the left dock, because panel_2 wasn't the active panel
11212        workspace.update(cx, |workspace, cx| {
11213            let left_dock = workspace.left_dock();
11214            assert!(left_dock.read(cx).is_open());
11215            assert_eq!(
11216                left_dock.read(cx).visible_panel().unwrap().panel_id(),
11217                panel_1.panel_id(),
11218            );
11219        });
11220
11221        // Emitting a ZoomIn event shows the panel as zoomed.
11222        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomIn));
11223        workspace.read_with(cx, |workspace, _| {
11224            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11225            assert_eq!(workspace.zoomed_position, Some(DockPosition::Left));
11226        });
11227
11228        // Move panel to another dock while it is zoomed
11229        panel_1.update_in(cx, |panel, window, cx| {
11230            panel.set_position(DockPosition::Right, window, cx)
11231        });
11232        workspace.read_with(cx, |workspace, _| {
11233            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11234
11235            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11236        });
11237
11238        // This is a helper for getting a:
11239        // - valid focus on an element,
11240        // - that isn't a part of the panes and panels system of the Workspace,
11241        // - and doesn't trigger the 'on_focus_lost' API.
11242        let focus_other_view = {
11243            let workspace = workspace.clone();
11244            move |cx: &mut VisualTestContext| {
11245                workspace.update_in(cx, |workspace, window, cx| {
11246                    if workspace.active_modal::<TestModal>(cx).is_some() {
11247                        workspace.toggle_modal(window, cx, TestModal::new);
11248                        workspace.toggle_modal(window, cx, TestModal::new);
11249                    } else {
11250                        workspace.toggle_modal(window, cx, TestModal::new);
11251                    }
11252                })
11253            }
11254        };
11255
11256        // If focus is transferred to another view that's not a panel or another pane, we still show
11257        // the panel as zoomed.
11258        focus_other_view(cx);
11259        workspace.read_with(cx, |workspace, _| {
11260            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11261            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11262        });
11263
11264        // If focus is transferred elsewhere in the workspace, the panel is no longer zoomed.
11265        workspace.update_in(cx, |_workspace, window, cx| {
11266            cx.focus_self(window);
11267        });
11268        workspace.read_with(cx, |workspace, _| {
11269            assert_eq!(workspace.zoomed, None);
11270            assert_eq!(workspace.zoomed_position, None);
11271        });
11272
11273        // If focus is transferred again to another view that's not a panel or a pane, we won't
11274        // show the panel as zoomed because it wasn't zoomed before.
11275        focus_other_view(cx);
11276        workspace.read_with(cx, |workspace, _| {
11277            assert_eq!(workspace.zoomed, None);
11278            assert_eq!(workspace.zoomed_position, None);
11279        });
11280
11281        // When the panel is activated, it is zoomed again.
11282        cx.dispatch_action(ToggleRightDock);
11283        workspace.read_with(cx, |workspace, _| {
11284            assert_eq!(workspace.zoomed, Some(panel_1.to_any().downgrade()));
11285            assert_eq!(workspace.zoomed_position, Some(DockPosition::Right));
11286        });
11287
11288        // Emitting a ZoomOut event unzooms the panel.
11289        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::ZoomOut));
11290        workspace.read_with(cx, |workspace, _| {
11291            assert_eq!(workspace.zoomed, None);
11292            assert_eq!(workspace.zoomed_position, None);
11293        });
11294
11295        // Emit closed event on panel 1, which is active
11296        panel_1.update(cx, |_, cx| cx.emit(PanelEvent::Close));
11297
11298        // Now the left dock is closed, because panel_1 was the active panel
11299        workspace.update(cx, |workspace, cx| {
11300            let right_dock = workspace.right_dock();
11301            assert!(!right_dock.read(cx).is_open());
11302        });
11303    }
11304
11305    #[gpui::test]
11306    async fn test_no_save_prompt_when_multi_buffer_dirty_items_closed(cx: &mut TestAppContext) {
11307        init_test(cx);
11308
11309        let fs = FakeFs::new(cx.background_executor.clone());
11310        let project = Project::test(fs, [], cx).await;
11311        let (workspace, cx) =
11312            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11313        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11314
11315        let dirty_regular_buffer = cx.new(|cx| {
11316            TestItem::new(cx)
11317                .with_dirty(true)
11318                .with_label("1.txt")
11319                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11320        });
11321        let dirty_regular_buffer_2 = cx.new(|cx| {
11322            TestItem::new(cx)
11323                .with_dirty(true)
11324                .with_label("2.txt")
11325                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11326        });
11327        let dirty_multi_buffer_with_both = cx.new(|cx| {
11328            TestItem::new(cx)
11329                .with_dirty(true)
11330                .with_buffer_kind(ItemBufferKind::Multibuffer)
11331                .with_label("Fake Project Search")
11332                .with_project_items(&[
11333                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11334                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11335                ])
11336        });
11337        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11338        workspace.update_in(cx, |workspace, window, cx| {
11339            workspace.add_item(
11340                pane.clone(),
11341                Box::new(dirty_regular_buffer.clone()),
11342                None,
11343                false,
11344                false,
11345                window,
11346                cx,
11347            );
11348            workspace.add_item(
11349                pane.clone(),
11350                Box::new(dirty_regular_buffer_2.clone()),
11351                None,
11352                false,
11353                false,
11354                window,
11355                cx,
11356            );
11357            workspace.add_item(
11358                pane.clone(),
11359                Box::new(dirty_multi_buffer_with_both.clone()),
11360                None,
11361                false,
11362                false,
11363                window,
11364                cx,
11365            );
11366        });
11367
11368        pane.update_in(cx, |pane, window, cx| {
11369            pane.activate_item(2, true, true, window, cx);
11370            assert_eq!(
11371                pane.active_item().unwrap().item_id(),
11372                multi_buffer_with_both_files_id,
11373                "Should select the multi buffer in the pane"
11374            );
11375        });
11376        let close_all_but_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11377            pane.close_other_items(
11378                &CloseOtherItems {
11379                    save_intent: Some(SaveIntent::Save),
11380                    close_pinned: true,
11381                },
11382                None,
11383                window,
11384                cx,
11385            )
11386        });
11387        cx.background_executor.run_until_parked();
11388        assert!(!cx.has_pending_prompt());
11389        close_all_but_multi_buffer_task
11390            .await
11391            .expect("Closing all buffers but the multi buffer failed");
11392        pane.update(cx, |pane, cx| {
11393            assert_eq!(dirty_regular_buffer.read(cx).save_count, 1);
11394            assert_eq!(dirty_multi_buffer_with_both.read(cx).save_count, 0);
11395            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 1);
11396            assert_eq!(pane.items_len(), 1);
11397            assert_eq!(
11398                pane.active_item().unwrap().item_id(),
11399                multi_buffer_with_both_files_id,
11400                "Should have only the multi buffer left in the pane"
11401            );
11402            assert!(
11403                dirty_multi_buffer_with_both.read(cx).is_dirty,
11404                "The multi buffer containing the unsaved buffer should still be dirty"
11405            );
11406        });
11407
11408        dirty_regular_buffer.update(cx, |buffer, cx| {
11409            buffer.project_items[0].update(cx, |pi, _| pi.is_dirty = true)
11410        });
11411
11412        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11413            pane.close_active_item(
11414                &CloseActiveItem {
11415                    save_intent: Some(SaveIntent::Close),
11416                    close_pinned: false,
11417                },
11418                window,
11419                cx,
11420            )
11421        });
11422        cx.background_executor.run_until_parked();
11423        assert!(
11424            cx.has_pending_prompt(),
11425            "Dirty multi buffer should prompt a save dialog"
11426        );
11427        cx.simulate_prompt_answer("Save");
11428        cx.background_executor.run_until_parked();
11429        close_multi_buffer_task
11430            .await
11431            .expect("Closing the multi buffer failed");
11432        pane.update(cx, |pane, cx| {
11433            assert_eq!(
11434                dirty_multi_buffer_with_both.read(cx).save_count,
11435                1,
11436                "Multi buffer item should get be saved"
11437            );
11438            // Test impl does not save inner items, so we do not assert them
11439            assert_eq!(
11440                pane.items_len(),
11441                0,
11442                "No more items should be left in the pane"
11443            );
11444            assert!(pane.active_item().is_none());
11445        });
11446    }
11447
11448    #[gpui::test]
11449    async fn test_save_prompt_when_dirty_multi_buffer_closed_with_some_of_its_dirty_items_not_present_in_the_pane(
11450        cx: &mut TestAppContext,
11451    ) {
11452        init_test(cx);
11453
11454        let fs = FakeFs::new(cx.background_executor.clone());
11455        let project = Project::test(fs, [], cx).await;
11456        let (workspace, cx) =
11457            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11458        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11459
11460        let dirty_regular_buffer = cx.new(|cx| {
11461            TestItem::new(cx)
11462                .with_dirty(true)
11463                .with_label("1.txt")
11464                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11465        });
11466        let dirty_regular_buffer_2 = cx.new(|cx| {
11467            TestItem::new(cx)
11468                .with_dirty(true)
11469                .with_label("2.txt")
11470                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11471        });
11472        let clear_regular_buffer = cx.new(|cx| {
11473            TestItem::new(cx)
11474                .with_label("3.txt")
11475                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11476        });
11477
11478        let dirty_multi_buffer_with_both = cx.new(|cx| {
11479            TestItem::new(cx)
11480                .with_dirty(true)
11481                .with_buffer_kind(ItemBufferKind::Multibuffer)
11482                .with_label("Fake Project Search")
11483                .with_project_items(&[
11484                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11485                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11486                    clear_regular_buffer.read(cx).project_items[0].clone(),
11487                ])
11488        });
11489        let multi_buffer_with_both_files_id = dirty_multi_buffer_with_both.item_id();
11490        workspace.update_in(cx, |workspace, window, cx| {
11491            workspace.add_item(
11492                pane.clone(),
11493                Box::new(dirty_regular_buffer.clone()),
11494                None,
11495                false,
11496                false,
11497                window,
11498                cx,
11499            );
11500            workspace.add_item(
11501                pane.clone(),
11502                Box::new(dirty_multi_buffer_with_both.clone()),
11503                None,
11504                false,
11505                false,
11506                window,
11507                cx,
11508            );
11509        });
11510
11511        pane.update_in(cx, |pane, window, cx| {
11512            pane.activate_item(1, true, true, window, cx);
11513            assert_eq!(
11514                pane.active_item().unwrap().item_id(),
11515                multi_buffer_with_both_files_id,
11516                "Should select the multi buffer in the pane"
11517            );
11518        });
11519        let _close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11520            pane.close_active_item(
11521                &CloseActiveItem {
11522                    save_intent: None,
11523                    close_pinned: false,
11524                },
11525                window,
11526                cx,
11527            )
11528        });
11529        cx.background_executor.run_until_parked();
11530        assert!(
11531            cx.has_pending_prompt(),
11532            "With one dirty item from the multi buffer not being in the pane, a save prompt should be shown"
11533        );
11534    }
11535
11536    /// Tests that when `close_on_file_delete` is enabled, files are automatically
11537    /// closed when they are deleted from disk.
11538    #[gpui::test]
11539    async fn test_close_on_disk_deletion_enabled(cx: &mut TestAppContext) {
11540        init_test(cx);
11541
11542        // Enable the close_on_disk_deletion setting
11543        cx.update_global(|store: &mut SettingsStore, cx| {
11544            store.update_user_settings(cx, |settings| {
11545                settings.workspace.close_on_file_delete = Some(true);
11546            });
11547        });
11548
11549        let fs = FakeFs::new(cx.background_executor.clone());
11550        let project = Project::test(fs, [], cx).await;
11551        let (workspace, cx) =
11552            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11553        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11554
11555        // Create a test item that simulates a file
11556        let item = cx.new(|cx| {
11557            TestItem::new(cx)
11558                .with_label("test.txt")
11559                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11560        });
11561
11562        // Add item to workspace
11563        workspace.update_in(cx, |workspace, window, cx| {
11564            workspace.add_item(
11565                pane.clone(),
11566                Box::new(item.clone()),
11567                None,
11568                false,
11569                false,
11570                window,
11571                cx,
11572            );
11573        });
11574
11575        // Verify the item is in the pane
11576        pane.read_with(cx, |pane, _| {
11577            assert_eq!(pane.items().count(), 1);
11578        });
11579
11580        // Simulate file deletion by setting the item's deleted state
11581        item.update(cx, |item, _| {
11582            item.set_has_deleted_file(true);
11583        });
11584
11585        // Emit UpdateTab event to trigger the close behavior
11586        cx.run_until_parked();
11587        item.update(cx, |_, cx| {
11588            cx.emit(ItemEvent::UpdateTab);
11589        });
11590
11591        // Allow the close operation to complete
11592        cx.run_until_parked();
11593
11594        // Verify the item was automatically closed
11595        pane.read_with(cx, |pane, _| {
11596            assert_eq!(
11597                pane.items().count(),
11598                0,
11599                "Item should be automatically closed when file is deleted"
11600            );
11601        });
11602    }
11603
11604    /// Tests that when `close_on_file_delete` is disabled (default), files remain
11605    /// open with a strikethrough when they are deleted from disk.
11606    #[gpui::test]
11607    async fn test_close_on_disk_deletion_disabled(cx: &mut TestAppContext) {
11608        init_test(cx);
11609
11610        // Ensure close_on_disk_deletion is disabled (default)
11611        cx.update_global(|store: &mut SettingsStore, cx| {
11612            store.update_user_settings(cx, |settings| {
11613                settings.workspace.close_on_file_delete = Some(false);
11614            });
11615        });
11616
11617        let fs = FakeFs::new(cx.background_executor.clone());
11618        let project = Project::test(fs, [], cx).await;
11619        let (workspace, cx) =
11620            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11621        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11622
11623        // Create a test item that simulates a file
11624        let item = cx.new(|cx| {
11625            TestItem::new(cx)
11626                .with_label("test.txt")
11627                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11628        });
11629
11630        // Add item to workspace
11631        workspace.update_in(cx, |workspace, window, cx| {
11632            workspace.add_item(
11633                pane.clone(),
11634                Box::new(item.clone()),
11635                None,
11636                false,
11637                false,
11638                window,
11639                cx,
11640            );
11641        });
11642
11643        // Verify the item is in the pane
11644        pane.read_with(cx, |pane, _| {
11645            assert_eq!(pane.items().count(), 1);
11646        });
11647
11648        // Simulate file deletion
11649        item.update(cx, |item, _| {
11650            item.set_has_deleted_file(true);
11651        });
11652
11653        // Emit UpdateTab event
11654        cx.run_until_parked();
11655        item.update(cx, |_, cx| {
11656            cx.emit(ItemEvent::UpdateTab);
11657        });
11658
11659        // Allow any potential close operation to complete
11660        cx.run_until_parked();
11661
11662        // Verify the item remains open (with strikethrough)
11663        pane.read_with(cx, |pane, _| {
11664            assert_eq!(
11665                pane.items().count(),
11666                1,
11667                "Item should remain open when close_on_disk_deletion is disabled"
11668            );
11669        });
11670
11671        // Verify the item shows as deleted
11672        item.read_with(cx, |item, _| {
11673            assert!(
11674                item.has_deleted_file,
11675                "Item should be marked as having deleted file"
11676            );
11677        });
11678    }
11679
11680    /// Tests that dirty files are not automatically closed when deleted from disk,
11681    /// even when `close_on_file_delete` is enabled. This ensures users don't lose
11682    /// unsaved changes without being prompted.
11683    #[gpui::test]
11684    async fn test_close_on_disk_deletion_with_dirty_file(cx: &mut TestAppContext) {
11685        init_test(cx);
11686
11687        // Enable the close_on_file_delete setting
11688        cx.update_global(|store: &mut SettingsStore, cx| {
11689            store.update_user_settings(cx, |settings| {
11690                settings.workspace.close_on_file_delete = Some(true);
11691            });
11692        });
11693
11694        let fs = FakeFs::new(cx.background_executor.clone());
11695        let project = Project::test(fs, [], cx).await;
11696        let (workspace, cx) =
11697            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11698        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11699
11700        // Create a dirty test item
11701        let item = cx.new(|cx| {
11702            TestItem::new(cx)
11703                .with_dirty(true)
11704                .with_label("test.txt")
11705                .with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
11706        });
11707
11708        // Add item to workspace
11709        workspace.update_in(cx, |workspace, window, cx| {
11710            workspace.add_item(
11711                pane.clone(),
11712                Box::new(item.clone()),
11713                None,
11714                false,
11715                false,
11716                window,
11717                cx,
11718            );
11719        });
11720
11721        // Simulate file deletion
11722        item.update(cx, |item, _| {
11723            item.set_has_deleted_file(true);
11724        });
11725
11726        // Emit UpdateTab event to trigger the close behavior
11727        cx.run_until_parked();
11728        item.update(cx, |_, cx| {
11729            cx.emit(ItemEvent::UpdateTab);
11730        });
11731
11732        // Allow any potential close operation to complete
11733        cx.run_until_parked();
11734
11735        // Verify the item remains open (dirty files are not auto-closed)
11736        pane.read_with(cx, |pane, _| {
11737            assert_eq!(
11738                pane.items().count(),
11739                1,
11740                "Dirty items should not be automatically closed even when file is deleted"
11741            );
11742        });
11743
11744        // Verify the item is marked as deleted and still dirty
11745        item.read_with(cx, |item, _| {
11746            assert!(
11747                item.has_deleted_file,
11748                "Item should be marked as having deleted file"
11749            );
11750            assert!(item.is_dirty, "Item should still be dirty");
11751        });
11752    }
11753
11754    /// Tests that navigation history is cleaned up when files are auto-closed
11755    /// due to deletion from disk.
11756    #[gpui::test]
11757    async fn test_close_on_disk_deletion_cleans_navigation_history(cx: &mut TestAppContext) {
11758        init_test(cx);
11759
11760        // Enable the close_on_file_delete setting
11761        cx.update_global(|store: &mut SettingsStore, cx| {
11762            store.update_user_settings(cx, |settings| {
11763                settings.workspace.close_on_file_delete = Some(true);
11764            });
11765        });
11766
11767        let fs = FakeFs::new(cx.background_executor.clone());
11768        let project = Project::test(fs, [], cx).await;
11769        let (workspace, cx) =
11770            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11771        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11772
11773        // Create test items
11774        let item1 = cx.new(|cx| {
11775            TestItem::new(cx)
11776                .with_label("test1.txt")
11777                .with_project_items(&[TestProjectItem::new(1, "test1.txt", cx)])
11778        });
11779        let item1_id = item1.item_id();
11780
11781        let item2 = cx.new(|cx| {
11782            TestItem::new(cx)
11783                .with_label("test2.txt")
11784                .with_project_items(&[TestProjectItem::new(2, "test2.txt", cx)])
11785        });
11786
11787        // Add items to workspace
11788        workspace.update_in(cx, |workspace, window, cx| {
11789            workspace.add_item(
11790                pane.clone(),
11791                Box::new(item1.clone()),
11792                None,
11793                false,
11794                false,
11795                window,
11796                cx,
11797            );
11798            workspace.add_item(
11799                pane.clone(),
11800                Box::new(item2.clone()),
11801                None,
11802                false,
11803                false,
11804                window,
11805                cx,
11806            );
11807        });
11808
11809        // Activate item1 to ensure it gets navigation entries
11810        pane.update_in(cx, |pane, window, cx| {
11811            pane.activate_item(0, true, true, window, cx);
11812        });
11813
11814        // Switch to item2 and back to create navigation history
11815        pane.update_in(cx, |pane, window, cx| {
11816            pane.activate_item(1, true, true, window, cx);
11817        });
11818        cx.run_until_parked();
11819
11820        pane.update_in(cx, |pane, window, cx| {
11821            pane.activate_item(0, true, true, window, cx);
11822        });
11823        cx.run_until_parked();
11824
11825        // Simulate file deletion for item1
11826        item1.update(cx, |item, _| {
11827            item.set_has_deleted_file(true);
11828        });
11829
11830        // Emit UpdateTab event to trigger the close behavior
11831        item1.update(cx, |_, cx| {
11832            cx.emit(ItemEvent::UpdateTab);
11833        });
11834        cx.run_until_parked();
11835
11836        // Verify item1 was closed
11837        pane.read_with(cx, |pane, _| {
11838            assert_eq!(
11839                pane.items().count(),
11840                1,
11841                "Should have 1 item remaining after auto-close"
11842            );
11843        });
11844
11845        // Check navigation history after close
11846        let has_item = pane.read_with(cx, |pane, cx| {
11847            let mut has_item = false;
11848            pane.nav_history().for_each_entry(cx, |entry, _| {
11849                if entry.item.id() == item1_id {
11850                    has_item = true;
11851                }
11852            });
11853            has_item
11854        });
11855
11856        assert!(
11857            !has_item,
11858            "Navigation history should not contain closed item entries"
11859        );
11860    }
11861
11862    #[gpui::test]
11863    async fn test_no_save_prompt_when_dirty_multi_buffer_closed_with_all_of_its_dirty_items_present_in_the_pane(
11864        cx: &mut TestAppContext,
11865    ) {
11866        init_test(cx);
11867
11868        let fs = FakeFs::new(cx.background_executor.clone());
11869        let project = Project::test(fs, [], cx).await;
11870        let (workspace, cx) =
11871            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11872        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
11873
11874        let dirty_regular_buffer = cx.new(|cx| {
11875            TestItem::new(cx)
11876                .with_dirty(true)
11877                .with_label("1.txt")
11878                .with_project_items(&[dirty_project_item(1, "1.txt", cx)])
11879        });
11880        let dirty_regular_buffer_2 = cx.new(|cx| {
11881            TestItem::new(cx)
11882                .with_dirty(true)
11883                .with_label("2.txt")
11884                .with_project_items(&[dirty_project_item(2, "2.txt", cx)])
11885        });
11886        let clear_regular_buffer = cx.new(|cx| {
11887            TestItem::new(cx)
11888                .with_label("3.txt")
11889                .with_project_items(&[TestProjectItem::new(3, "3.txt", cx)])
11890        });
11891
11892        let dirty_multi_buffer = cx.new(|cx| {
11893            TestItem::new(cx)
11894                .with_dirty(true)
11895                .with_buffer_kind(ItemBufferKind::Multibuffer)
11896                .with_label("Fake Project Search")
11897                .with_project_items(&[
11898                    dirty_regular_buffer.read(cx).project_items[0].clone(),
11899                    dirty_regular_buffer_2.read(cx).project_items[0].clone(),
11900                    clear_regular_buffer.read(cx).project_items[0].clone(),
11901                ])
11902        });
11903        workspace.update_in(cx, |workspace, window, cx| {
11904            workspace.add_item(
11905                pane.clone(),
11906                Box::new(dirty_regular_buffer.clone()),
11907                None,
11908                false,
11909                false,
11910                window,
11911                cx,
11912            );
11913            workspace.add_item(
11914                pane.clone(),
11915                Box::new(dirty_regular_buffer_2.clone()),
11916                None,
11917                false,
11918                false,
11919                window,
11920                cx,
11921            );
11922            workspace.add_item(
11923                pane.clone(),
11924                Box::new(dirty_multi_buffer.clone()),
11925                None,
11926                false,
11927                false,
11928                window,
11929                cx,
11930            );
11931        });
11932
11933        pane.update_in(cx, |pane, window, cx| {
11934            pane.activate_item(2, true, true, window, cx);
11935            assert_eq!(
11936                pane.active_item().unwrap().item_id(),
11937                dirty_multi_buffer.item_id(),
11938                "Should select the multi buffer in the pane"
11939            );
11940        });
11941        let close_multi_buffer_task = pane.update_in(cx, |pane, window, cx| {
11942            pane.close_active_item(
11943                &CloseActiveItem {
11944                    save_intent: None,
11945                    close_pinned: false,
11946                },
11947                window,
11948                cx,
11949            )
11950        });
11951        cx.background_executor.run_until_parked();
11952        assert!(
11953            !cx.has_pending_prompt(),
11954            "All dirty items from the multi buffer are in the pane still, no save prompts should be shown"
11955        );
11956        close_multi_buffer_task
11957            .await
11958            .expect("Closing multi buffer failed");
11959        pane.update(cx, |pane, cx| {
11960            assert_eq!(dirty_regular_buffer.read(cx).save_count, 0);
11961            assert_eq!(dirty_multi_buffer.read(cx).save_count, 0);
11962            assert_eq!(dirty_regular_buffer_2.read(cx).save_count, 0);
11963            assert_eq!(
11964                pane.items()
11965                    .map(|item| item.item_id())
11966                    .sorted()
11967                    .collect::<Vec<_>>(),
11968                vec![
11969                    dirty_regular_buffer.item_id(),
11970                    dirty_regular_buffer_2.item_id(),
11971                ],
11972                "Should have no multi buffer left in the pane"
11973            );
11974            assert!(dirty_regular_buffer.read(cx).is_dirty);
11975            assert!(dirty_regular_buffer_2.read(cx).is_dirty);
11976        });
11977    }
11978
11979    #[gpui::test]
11980    async fn test_move_focused_panel_to_next_position(cx: &mut gpui::TestAppContext) {
11981        init_test(cx);
11982        let fs = FakeFs::new(cx.executor());
11983        let project = Project::test(fs, [], cx).await;
11984        let (workspace, cx) =
11985            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
11986
11987        // Add a new panel to the right dock, opening the dock and setting the
11988        // focus to the new panel.
11989        let panel = workspace.update_in(cx, |workspace, window, cx| {
11990            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
11991            workspace.add_panel(panel.clone(), window, cx);
11992
11993            workspace
11994                .right_dock()
11995                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
11996
11997            workspace.toggle_panel_focus::<TestPanel>(window, cx);
11998
11999            panel
12000        });
12001
12002        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12003        // panel to the next valid position which, in this case, is the left
12004        // dock.
12005        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12006        workspace.update(cx, |workspace, cx| {
12007            assert!(workspace.left_dock().read(cx).is_open());
12008            assert_eq!(panel.read(cx).position, DockPosition::Left);
12009        });
12010
12011        // Dispatch the `MoveFocusedPanelToNextPosition` action, moving the
12012        // panel to the next valid position which, in this case, is the bottom
12013        // dock.
12014        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12015        workspace.update(cx, |workspace, cx| {
12016            assert!(workspace.bottom_dock().read(cx).is_open());
12017            assert_eq!(panel.read(cx).position, DockPosition::Bottom);
12018        });
12019
12020        // Dispatch the `MoveFocusedPanelToNextPosition` action again, this time
12021        // around moving the panel to its initial position, the right dock.
12022        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12023        workspace.update(cx, |workspace, cx| {
12024            assert!(workspace.right_dock().read(cx).is_open());
12025            assert_eq!(panel.read(cx).position, DockPosition::Right);
12026        });
12027
12028        // Remove focus from the panel, ensuring that, if the panel is not
12029        // focused, the `MoveFocusedPanelToNextPosition` action does not update
12030        // the panel's position, so the panel is still in the right dock.
12031        workspace.update_in(cx, |workspace, window, cx| {
12032            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12033        });
12034
12035        cx.dispatch_action(MoveFocusedPanelToNextPosition);
12036        workspace.update(cx, |workspace, cx| {
12037            assert!(workspace.right_dock().read(cx).is_open());
12038            assert_eq!(panel.read(cx).position, DockPosition::Right);
12039        });
12040    }
12041
12042    #[gpui::test]
12043    async fn test_moving_items_create_panes(cx: &mut TestAppContext) {
12044        init_test(cx);
12045
12046        let fs = FakeFs::new(cx.executor());
12047        let project = Project::test(fs, [], cx).await;
12048        let (workspace, cx) =
12049            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12050
12051        let item_1 = cx.new(|cx| {
12052            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12053        });
12054        workspace.update_in(cx, |workspace, window, cx| {
12055            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12056            workspace.move_item_to_pane_in_direction(
12057                &MoveItemToPaneInDirection {
12058                    direction: SplitDirection::Right,
12059                    focus: true,
12060                    clone: false,
12061                },
12062                window,
12063                cx,
12064            );
12065            workspace.move_item_to_pane_at_index(
12066                &MoveItemToPane {
12067                    destination: 3,
12068                    focus: true,
12069                    clone: false,
12070                },
12071                window,
12072                cx,
12073            );
12074
12075            assert_eq!(workspace.panes.len(), 1, "No new panes were created");
12076            assert_eq!(
12077                pane_items_paths(&workspace.active_pane, cx),
12078                vec!["first.txt".to_string()],
12079                "Single item was not moved anywhere"
12080            );
12081        });
12082
12083        let item_2 = cx.new(|cx| {
12084            TestItem::new(cx).with_project_items(&[TestProjectItem::new(2, "second.txt", cx)])
12085        });
12086        workspace.update_in(cx, |workspace, window, cx| {
12087            workspace.add_item_to_active_pane(Box::new(item_2), None, true, window, cx);
12088            assert_eq!(
12089                pane_items_paths(&workspace.panes[0], cx),
12090                vec!["first.txt".to_string(), "second.txt".to_string()],
12091            );
12092            workspace.move_item_to_pane_in_direction(
12093                &MoveItemToPaneInDirection {
12094                    direction: SplitDirection::Right,
12095                    focus: true,
12096                    clone: false,
12097                },
12098                window,
12099                cx,
12100            );
12101
12102            assert_eq!(workspace.panes.len(), 2, "A new pane should be created");
12103            assert_eq!(
12104                pane_items_paths(&workspace.panes[0], cx),
12105                vec!["first.txt".to_string()],
12106                "After moving, one item should be left in the original pane"
12107            );
12108            assert_eq!(
12109                pane_items_paths(&workspace.panes[1], cx),
12110                vec!["second.txt".to_string()],
12111                "New item should have been moved to the new pane"
12112            );
12113        });
12114
12115        let item_3 = cx.new(|cx| {
12116            TestItem::new(cx).with_project_items(&[TestProjectItem::new(3, "third.txt", cx)])
12117        });
12118        workspace.update_in(cx, |workspace, window, cx| {
12119            let original_pane = workspace.panes[0].clone();
12120            workspace.set_active_pane(&original_pane, window, cx);
12121            workspace.add_item_to_active_pane(Box::new(item_3), None, true, window, cx);
12122            assert_eq!(workspace.panes.len(), 2, "No new panes were created");
12123            assert_eq!(
12124                pane_items_paths(&workspace.active_pane, cx),
12125                vec!["first.txt".to_string(), "third.txt".to_string()],
12126                "New pane should be ready to move one item out"
12127            );
12128
12129            workspace.move_item_to_pane_at_index(
12130                &MoveItemToPane {
12131                    destination: 3,
12132                    focus: true,
12133                    clone: false,
12134                },
12135                window,
12136                cx,
12137            );
12138            assert_eq!(workspace.panes.len(), 3, "A new pane should be created");
12139            assert_eq!(
12140                pane_items_paths(&workspace.active_pane, cx),
12141                vec!["first.txt".to_string()],
12142                "After moving, one item should be left in the original pane"
12143            );
12144            assert_eq!(
12145                pane_items_paths(&workspace.panes[1], cx),
12146                vec!["second.txt".to_string()],
12147                "Previously created pane should be unchanged"
12148            );
12149            assert_eq!(
12150                pane_items_paths(&workspace.panes[2], cx),
12151                vec!["third.txt".to_string()],
12152                "New item should have been moved to the new pane"
12153            );
12154        });
12155    }
12156
12157    #[gpui::test]
12158    async fn test_moving_items_can_clone_panes(cx: &mut TestAppContext) {
12159        init_test(cx);
12160
12161        let fs = FakeFs::new(cx.executor());
12162        let project = Project::test(fs, [], cx).await;
12163        let (workspace, cx) =
12164            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12165
12166        let item_1 = cx.new(|cx| {
12167            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "first.txt", cx)])
12168        });
12169        workspace.update_in(cx, |workspace, window, cx| {
12170            workspace.add_item_to_active_pane(Box::new(item_1), None, true, window, cx);
12171            workspace.move_item_to_pane_in_direction(
12172                &MoveItemToPaneInDirection {
12173                    direction: SplitDirection::Right,
12174                    focus: true,
12175                    clone: true,
12176                },
12177                window,
12178                cx,
12179            );
12180        });
12181        cx.run_until_parked();
12182        workspace.update_in(cx, |workspace, window, cx| {
12183            workspace.move_item_to_pane_at_index(
12184                &MoveItemToPane {
12185                    destination: 3,
12186                    focus: true,
12187                    clone: true,
12188                },
12189                window,
12190                cx,
12191            );
12192        });
12193        cx.run_until_parked();
12194
12195        workspace.update(cx, |workspace, cx| {
12196            assert_eq!(workspace.panes.len(), 3, "Two new panes were created");
12197            for pane in workspace.panes() {
12198                assert_eq!(
12199                    pane_items_paths(pane, cx),
12200                    vec!["first.txt".to_string()],
12201                    "Single item exists in all panes"
12202                );
12203            }
12204        });
12205
12206        // verify that the active pane has been updated after waiting for the
12207        // pane focus event to fire and resolve
12208        workspace.read_with(cx, |workspace, _app| {
12209            assert_eq!(
12210                workspace.active_pane(),
12211                &workspace.panes[2],
12212                "The third pane should be the active one: {:?}",
12213                workspace.panes
12214            );
12215        })
12216    }
12217
12218    #[gpui::test]
12219    async fn test_close_item_in_all_panes(cx: &mut TestAppContext) {
12220        init_test(cx);
12221
12222        let fs = FakeFs::new(cx.executor());
12223        fs.insert_tree("/root", json!({ "test.txt": "" })).await;
12224
12225        let project = Project::test(fs, ["root".as_ref()], cx).await;
12226        let (workspace, cx) =
12227            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12228
12229        let pane_a = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12230        // Add item to pane A with project path
12231        let item_a = cx.new(|cx| {
12232            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12233        });
12234        workspace.update_in(cx, |workspace, window, cx| {
12235            workspace.add_item_to_active_pane(Box::new(item_a.clone()), None, true, window, cx)
12236        });
12237
12238        // Split to create pane B
12239        let pane_b = workspace.update_in(cx, |workspace, window, cx| {
12240            workspace.split_pane(pane_a.clone(), SplitDirection::Right, window, cx)
12241        });
12242
12243        // Add item with SAME project path to pane B, and pin it
12244        let item_b = cx.new(|cx| {
12245            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12246        });
12247        pane_b.update_in(cx, |pane, window, cx| {
12248            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12249            pane.set_pinned_count(1);
12250        });
12251
12252        assert_eq!(pane_a.read_with(cx, |pane, _| pane.items_len()), 1);
12253        assert_eq!(pane_b.read_with(cx, |pane, _| pane.items_len()), 1);
12254
12255        // close_pinned: false should only close the unpinned copy
12256        workspace.update_in(cx, |workspace, window, cx| {
12257            workspace.close_item_in_all_panes(
12258                &CloseItemInAllPanes {
12259                    save_intent: Some(SaveIntent::Close),
12260                    close_pinned: false,
12261                },
12262                window,
12263                cx,
12264            )
12265        });
12266        cx.executor().run_until_parked();
12267
12268        let item_count_a = pane_a.read_with(cx, |pane, _| pane.items_len());
12269        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
12270        assert_eq!(item_count_a, 0, "Unpinned item in pane A should be closed");
12271        assert_eq!(item_count_b, 1, "Pinned item in pane B should remain");
12272
12273        // Split again, seeing as closing the previous item also closed its
12274        // pane, so only pane remains, which does not allow us to properly test
12275        // that both items close when `close_pinned: true`.
12276        let pane_c = workspace.update_in(cx, |workspace, window, cx| {
12277            workspace.split_pane(pane_b.clone(), SplitDirection::Right, window, cx)
12278        });
12279
12280        // Add an item with the same project path to pane C so that
12281        // close_item_in_all_panes can determine what to close across all panes
12282        // (it reads the active item from the active pane, and split_pane
12283        // creates an empty pane).
12284        let item_c = cx.new(|cx| {
12285            TestItem::new(cx).with_project_items(&[TestProjectItem::new(1, "test.txt", cx)])
12286        });
12287        pane_c.update_in(cx, |pane, window, cx| {
12288            pane.add_item(Box::new(item_c.clone()), true, true, None, window, cx);
12289        });
12290
12291        // close_pinned: true should close the pinned copy too
12292        workspace.update_in(cx, |workspace, window, cx| {
12293            let panes_count = workspace.panes().len();
12294            assert_eq!(panes_count, 2, "Workspace should have two panes (B and C)");
12295
12296            workspace.close_item_in_all_panes(
12297                &CloseItemInAllPanes {
12298                    save_intent: Some(SaveIntent::Close),
12299                    close_pinned: true,
12300                },
12301                window,
12302                cx,
12303            )
12304        });
12305        cx.executor().run_until_parked();
12306
12307        let item_count_b = pane_b.read_with(cx, |pane, _| pane.items_len());
12308        let item_count_c = pane_c.read_with(cx, |pane, _| pane.items_len());
12309        assert_eq!(item_count_b, 0, "Pinned item in pane B should be closed");
12310        assert_eq!(item_count_c, 0, "Unpinned item in pane C should be closed");
12311    }
12312
12313    mod register_project_item_tests {
12314
12315        use super::*;
12316
12317        // View
12318        struct TestPngItemView {
12319            focus_handle: FocusHandle,
12320        }
12321        // Model
12322        struct TestPngItem {}
12323
12324        impl project::ProjectItem for TestPngItem {
12325            fn try_open(
12326                _project: &Entity<Project>,
12327                path: &ProjectPath,
12328                cx: &mut App,
12329            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12330                if path.path.extension().unwrap() == "png" {
12331                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestPngItem {}))))
12332                } else {
12333                    None
12334                }
12335            }
12336
12337            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12338                None
12339            }
12340
12341            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12342                None
12343            }
12344
12345            fn is_dirty(&self) -> bool {
12346                false
12347            }
12348        }
12349
12350        impl Item for TestPngItemView {
12351            type Event = ();
12352            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12353                "".into()
12354            }
12355        }
12356        impl EventEmitter<()> for TestPngItemView {}
12357        impl Focusable for TestPngItemView {
12358            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12359                self.focus_handle.clone()
12360            }
12361        }
12362
12363        impl Render for TestPngItemView {
12364            fn render(
12365                &mut self,
12366                _window: &mut Window,
12367                _cx: &mut Context<Self>,
12368            ) -> impl IntoElement {
12369                Empty
12370            }
12371        }
12372
12373        impl ProjectItem for TestPngItemView {
12374            type Item = TestPngItem;
12375
12376            fn for_project_item(
12377                _project: Entity<Project>,
12378                _pane: Option<&Pane>,
12379                _item: Entity<Self::Item>,
12380                _: &mut Window,
12381                cx: &mut Context<Self>,
12382            ) -> Self
12383            where
12384                Self: Sized,
12385            {
12386                Self {
12387                    focus_handle: cx.focus_handle(),
12388                }
12389            }
12390        }
12391
12392        // View
12393        struct TestIpynbItemView {
12394            focus_handle: FocusHandle,
12395        }
12396        // Model
12397        struct TestIpynbItem {}
12398
12399        impl project::ProjectItem for TestIpynbItem {
12400            fn try_open(
12401                _project: &Entity<Project>,
12402                path: &ProjectPath,
12403                cx: &mut App,
12404            ) -> Option<Task<anyhow::Result<Entity<Self>>>> {
12405                if path.path.extension().unwrap() == "ipynb" {
12406                    Some(cx.spawn(async move |cx| Ok(cx.new(|_| TestIpynbItem {}))))
12407                } else {
12408                    None
12409                }
12410            }
12411
12412            fn entry_id(&self, _: &App) -> Option<ProjectEntryId> {
12413                None
12414            }
12415
12416            fn project_path(&self, _: &App) -> Option<ProjectPath> {
12417                None
12418            }
12419
12420            fn is_dirty(&self) -> bool {
12421                false
12422            }
12423        }
12424
12425        impl Item for TestIpynbItemView {
12426            type Event = ();
12427            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12428                "".into()
12429            }
12430        }
12431        impl EventEmitter<()> for TestIpynbItemView {}
12432        impl Focusable for TestIpynbItemView {
12433            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12434                self.focus_handle.clone()
12435            }
12436        }
12437
12438        impl Render for TestIpynbItemView {
12439            fn render(
12440                &mut self,
12441                _window: &mut Window,
12442                _cx: &mut Context<Self>,
12443            ) -> impl IntoElement {
12444                Empty
12445            }
12446        }
12447
12448        impl ProjectItem for TestIpynbItemView {
12449            type Item = TestIpynbItem;
12450
12451            fn for_project_item(
12452                _project: Entity<Project>,
12453                _pane: Option<&Pane>,
12454                _item: Entity<Self::Item>,
12455                _: &mut Window,
12456                cx: &mut Context<Self>,
12457            ) -> Self
12458            where
12459                Self: Sized,
12460            {
12461                Self {
12462                    focus_handle: cx.focus_handle(),
12463                }
12464            }
12465        }
12466
12467        struct TestAlternatePngItemView {
12468            focus_handle: FocusHandle,
12469        }
12470
12471        impl Item for TestAlternatePngItemView {
12472            type Event = ();
12473            fn tab_content_text(&self, _detail: usize, _cx: &App) -> SharedString {
12474                "".into()
12475            }
12476        }
12477
12478        impl EventEmitter<()> for TestAlternatePngItemView {}
12479        impl Focusable for TestAlternatePngItemView {
12480            fn focus_handle(&self, _cx: &App) -> FocusHandle {
12481                self.focus_handle.clone()
12482            }
12483        }
12484
12485        impl Render for TestAlternatePngItemView {
12486            fn render(
12487                &mut self,
12488                _window: &mut Window,
12489                _cx: &mut Context<Self>,
12490            ) -> impl IntoElement {
12491                Empty
12492            }
12493        }
12494
12495        impl ProjectItem for TestAlternatePngItemView {
12496            type Item = TestPngItem;
12497
12498            fn for_project_item(
12499                _project: Entity<Project>,
12500                _pane: Option<&Pane>,
12501                _item: Entity<Self::Item>,
12502                _: &mut Window,
12503                cx: &mut Context<Self>,
12504            ) -> Self
12505            where
12506                Self: Sized,
12507            {
12508                Self {
12509                    focus_handle: cx.focus_handle(),
12510                }
12511            }
12512        }
12513
12514        #[gpui::test]
12515        async fn test_register_project_item(cx: &mut TestAppContext) {
12516            init_test(cx);
12517
12518            cx.update(|cx| {
12519                register_project_item::<TestPngItemView>(cx);
12520                register_project_item::<TestIpynbItemView>(cx);
12521            });
12522
12523            let fs = FakeFs::new(cx.executor());
12524            fs.insert_tree(
12525                "/root1",
12526                json!({
12527                    "one.png": "BINARYDATAHERE",
12528                    "two.ipynb": "{ totally a notebook }",
12529                    "three.txt": "editing text, sure why not?"
12530                }),
12531            )
12532            .await;
12533
12534            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12535            let (workspace, cx) =
12536                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12537
12538            let worktree_id = project.update(cx, |project, cx| {
12539                project.worktrees(cx).next().unwrap().read(cx).id()
12540            });
12541
12542            let handle = workspace
12543                .update_in(cx, |workspace, window, cx| {
12544                    let project_path = (worktree_id, rel_path("one.png"));
12545                    workspace.open_path(project_path, None, true, window, cx)
12546                })
12547                .await
12548                .unwrap();
12549
12550            // Now we can check if the handle we got back errored or not
12551            assert_eq!(
12552                handle.to_any_view().entity_type(),
12553                TypeId::of::<TestPngItemView>()
12554            );
12555
12556            let handle = workspace
12557                .update_in(cx, |workspace, window, cx| {
12558                    let project_path = (worktree_id, rel_path("two.ipynb"));
12559                    workspace.open_path(project_path, None, true, window, cx)
12560                })
12561                .await
12562                .unwrap();
12563
12564            assert_eq!(
12565                handle.to_any_view().entity_type(),
12566                TypeId::of::<TestIpynbItemView>()
12567            );
12568
12569            let handle = workspace
12570                .update_in(cx, |workspace, window, cx| {
12571                    let project_path = (worktree_id, rel_path("three.txt"));
12572                    workspace.open_path(project_path, None, true, window, cx)
12573                })
12574                .await;
12575            assert!(handle.is_err());
12576        }
12577
12578        #[gpui::test]
12579        async fn test_register_project_item_two_enter_one_leaves(cx: &mut TestAppContext) {
12580            init_test(cx);
12581
12582            cx.update(|cx| {
12583                register_project_item::<TestPngItemView>(cx);
12584                register_project_item::<TestAlternatePngItemView>(cx);
12585            });
12586
12587            let fs = FakeFs::new(cx.executor());
12588            fs.insert_tree(
12589                "/root1",
12590                json!({
12591                    "one.png": "BINARYDATAHERE",
12592                    "two.ipynb": "{ totally a notebook }",
12593                    "three.txt": "editing text, sure why not?"
12594                }),
12595            )
12596            .await;
12597            let project = Project::test(fs, ["root1".as_ref()], cx).await;
12598            let (workspace, cx) =
12599                cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12600            let worktree_id = project.update(cx, |project, cx| {
12601                project.worktrees(cx).next().unwrap().read(cx).id()
12602            });
12603
12604            let handle = workspace
12605                .update_in(cx, |workspace, window, cx| {
12606                    let project_path = (worktree_id, rel_path("one.png"));
12607                    workspace.open_path(project_path, None, true, window, cx)
12608                })
12609                .await
12610                .unwrap();
12611
12612            // This _must_ be the second item registered
12613            assert_eq!(
12614                handle.to_any_view().entity_type(),
12615                TypeId::of::<TestAlternatePngItemView>()
12616            );
12617
12618            let handle = workspace
12619                .update_in(cx, |workspace, window, cx| {
12620                    let project_path = (worktree_id, rel_path("three.txt"));
12621                    workspace.open_path(project_path, None, true, window, cx)
12622                })
12623                .await;
12624            assert!(handle.is_err());
12625        }
12626    }
12627
12628    #[gpui::test]
12629    async fn test_status_bar_visibility(cx: &mut TestAppContext) {
12630        init_test(cx);
12631
12632        let fs = FakeFs::new(cx.executor());
12633        let project = Project::test(fs, [], cx).await;
12634        let (workspace, _cx) =
12635            cx.add_window_view(|window, cx| Workspace::test_new(project.clone(), window, cx));
12636
12637        // Test with status bar shown (default)
12638        workspace.read_with(cx, |workspace, cx| {
12639            let visible = workspace.status_bar_visible(cx);
12640            assert!(visible, "Status bar should be visible by default");
12641        });
12642
12643        // Test with status bar hidden
12644        cx.update_global(|store: &mut SettingsStore, cx| {
12645            store.update_user_settings(cx, |settings| {
12646                settings.status_bar.get_or_insert_default().show = Some(false);
12647            });
12648        });
12649
12650        workspace.read_with(cx, |workspace, cx| {
12651            let visible = workspace.status_bar_visible(cx);
12652            assert!(!visible, "Status bar should be hidden when show is false");
12653        });
12654
12655        // Test with status bar shown explicitly
12656        cx.update_global(|store: &mut SettingsStore, cx| {
12657            store.update_user_settings(cx, |settings| {
12658                settings.status_bar.get_or_insert_default().show = Some(true);
12659            });
12660        });
12661
12662        workspace.read_with(cx, |workspace, cx| {
12663            let visible = workspace.status_bar_visible(cx);
12664            assert!(visible, "Status bar should be visible when show is true");
12665        });
12666    }
12667
12668    #[gpui::test]
12669    async fn test_pane_close_active_item(cx: &mut TestAppContext) {
12670        init_test(cx);
12671
12672        let fs = FakeFs::new(cx.executor());
12673        let project = Project::test(fs, [], cx).await;
12674        let (workspace, cx) =
12675            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12676        let panel = workspace.update_in(cx, |workspace, window, cx| {
12677            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12678            workspace.add_panel(panel.clone(), window, cx);
12679
12680            workspace
12681                .right_dock()
12682                .update(cx, |right_dock, cx| right_dock.set_open(true, window, cx));
12683
12684            panel
12685        });
12686
12687        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12688        let item_a = cx.new(TestItem::new);
12689        let item_b = cx.new(TestItem::new);
12690        let item_a_id = item_a.entity_id();
12691        let item_b_id = item_b.entity_id();
12692
12693        pane.update_in(cx, |pane, window, cx| {
12694            pane.add_item(Box::new(item_a.clone()), true, true, None, window, cx);
12695            pane.add_item(Box::new(item_b.clone()), true, true, None, window, cx);
12696        });
12697
12698        pane.read_with(cx, |pane, _| {
12699            assert_eq!(pane.items_len(), 2);
12700            assert_eq!(pane.active_item().unwrap().item_id(), item_b_id);
12701        });
12702
12703        workspace.update_in(cx, |workspace, window, cx| {
12704            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12705        });
12706
12707        workspace.update_in(cx, |_, window, cx| {
12708            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12709        });
12710
12711        // Assert that the `pane::CloseActiveItem` action is handled at the
12712        // workspace level when one of the dock panels is focused and, in that
12713        // case, the center pane's active item is closed but the focus is not
12714        // moved.
12715        cx.dispatch_action(pane::CloseActiveItem::default());
12716        cx.run_until_parked();
12717
12718        pane.read_with(cx, |pane, _| {
12719            assert_eq!(pane.items_len(), 1);
12720            assert_eq!(pane.active_item().unwrap().item_id(), item_a_id);
12721        });
12722
12723        workspace.update_in(cx, |workspace, window, cx| {
12724            assert!(workspace.right_dock().read(cx).is_open());
12725            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12726        });
12727    }
12728
12729    #[gpui::test]
12730    async fn test_panel_zoom_preserved_across_workspace_switch(cx: &mut TestAppContext) {
12731        init_test(cx);
12732        let fs = FakeFs::new(cx.executor());
12733
12734        let project_a = Project::test(fs.clone(), [], cx).await;
12735        let project_b = Project::test(fs, [], cx).await;
12736
12737        let multi_workspace_handle =
12738            cx.add_window(|window, cx| MultiWorkspace::test_new(project_a.clone(), window, cx));
12739
12740        let workspace_a = multi_workspace_handle
12741            .read_with(cx, |mw, _| mw.workspace().clone())
12742            .unwrap();
12743
12744        let _workspace_b = multi_workspace_handle
12745            .update(cx, |mw, window, cx| {
12746                mw.test_add_workspace(project_b, window, cx)
12747            })
12748            .unwrap();
12749
12750        // Switch to workspace A
12751        multi_workspace_handle
12752            .update(cx, |mw, window, cx| {
12753                mw.activate_index(0, window, cx);
12754            })
12755            .unwrap();
12756
12757        let cx = &mut VisualTestContext::from_window(multi_workspace_handle.into(), cx);
12758
12759        // Add a panel to workspace A's right dock and open the dock
12760        let panel = workspace_a.update_in(cx, |workspace, window, cx| {
12761            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12762            workspace.add_panel(panel.clone(), window, cx);
12763            workspace
12764                .right_dock()
12765                .update(cx, |dock, cx| dock.set_open(true, window, cx));
12766            panel
12767        });
12768
12769        // Focus the panel through the workspace (matching existing test pattern)
12770        workspace_a.update_in(cx, |workspace, window, cx| {
12771            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12772        });
12773
12774        // Zoom the panel
12775        panel.update_in(cx, |panel, window, cx| {
12776            panel.set_zoomed(true, window, cx);
12777        });
12778
12779        // Verify the panel is zoomed and the dock is open
12780        workspace_a.update_in(cx, |workspace, window, cx| {
12781            assert!(
12782                workspace.right_dock().read(cx).is_open(),
12783                "dock should be open before switch"
12784            );
12785            assert!(
12786                panel.is_zoomed(window, cx),
12787                "panel should be zoomed before switch"
12788            );
12789            assert!(
12790                panel.read(cx).focus_handle(cx).contains_focused(window, cx),
12791                "panel should be focused before switch"
12792            );
12793        });
12794
12795        // Switch to workspace B
12796        multi_workspace_handle
12797            .update(cx, |mw, window, cx| {
12798                mw.activate_index(1, window, cx);
12799            })
12800            .unwrap();
12801        cx.run_until_parked();
12802
12803        // Switch back to workspace A
12804        multi_workspace_handle
12805            .update(cx, |mw, window, cx| {
12806                mw.activate_index(0, window, cx);
12807            })
12808            .unwrap();
12809        cx.run_until_parked();
12810
12811        // Verify the panel is still zoomed and the dock is still open
12812        workspace_a.update_in(cx, |workspace, window, cx| {
12813            assert!(
12814                workspace.right_dock().read(cx).is_open(),
12815                "dock should still be open after switching back"
12816            );
12817            assert!(
12818                panel.is_zoomed(window, cx),
12819                "panel should still be zoomed after switching back"
12820            );
12821        });
12822    }
12823
12824    fn pane_items_paths(pane: &Entity<Pane>, cx: &App) -> Vec<String> {
12825        pane.read(cx)
12826            .items()
12827            .flat_map(|item| {
12828                item.project_paths(cx)
12829                    .into_iter()
12830                    .map(|path| path.path.display(PathStyle::local()).into_owned())
12831            })
12832            .collect()
12833    }
12834
12835    pub fn init_test(cx: &mut TestAppContext) {
12836        cx.update(|cx| {
12837            let settings_store = SettingsStore::test(cx);
12838            cx.set_global(settings_store);
12839            theme::init(theme::LoadThemes::JustBase, cx);
12840        });
12841    }
12842
12843    fn dirty_project_item(id: u64, path: &str, cx: &mut App) -> Entity<TestProjectItem> {
12844        let item = TestProjectItem::new(id, path, cx);
12845        item.update(cx, |item, _| {
12846            item.is_dirty = true;
12847        });
12848        item
12849    }
12850
12851    #[gpui::test]
12852    async fn test_zoomed_panel_without_pane_preserved_on_center_focus(
12853        cx: &mut gpui::TestAppContext,
12854    ) {
12855        init_test(cx);
12856        let fs = FakeFs::new(cx.executor());
12857
12858        let project = Project::test(fs, [], cx).await;
12859        let (workspace, cx) =
12860            cx.add_window_view(|window, cx| Workspace::test_new(project, window, cx));
12861
12862        let panel = workspace.update_in(cx, |workspace, window, cx| {
12863            let panel = cx.new(|cx| TestPanel::new(DockPosition::Right, 100, cx));
12864            workspace.add_panel(panel.clone(), window, cx);
12865            workspace
12866                .right_dock()
12867                .update(cx, |dock, cx| dock.set_open(true, window, cx));
12868            panel
12869        });
12870
12871        let pane = workspace.read_with(cx, |workspace, _| workspace.active_pane().clone());
12872        pane.update_in(cx, |pane, window, cx| {
12873            let item = cx.new(TestItem::new);
12874            pane.add_item(Box::new(item), true, true, None, window, cx);
12875        });
12876
12877        // Transfer focus to the panel, then zoom it. Using toggle_panel_focus
12878        // mirrors the real-world flow and avoids side effects from directly
12879        // focusing the panel while the center pane is active.
12880        workspace.update_in(cx, |workspace, window, cx| {
12881            workspace.toggle_panel_focus::<TestPanel>(window, cx);
12882        });
12883
12884        panel.update_in(cx, |panel, window, cx| {
12885            panel.set_zoomed(true, window, cx);
12886        });
12887
12888        workspace.update_in(cx, |workspace, window, cx| {
12889            assert!(workspace.right_dock().read(cx).is_open());
12890            assert!(panel.is_zoomed(window, cx));
12891            assert!(panel.read(cx).focus_handle(cx).contains_focused(window, cx));
12892        });
12893
12894        // Simulate a spurious pane::Event::Focus on the center pane while the
12895        // panel still has focus. This mirrors what happens during macOS window
12896        // activation: the center pane fires a focus event even though actual
12897        // focus remains on the dock panel.
12898        pane.update_in(cx, |_, _, cx| {
12899            cx.emit(pane::Event::Focus);
12900        });
12901
12902        // The dock must remain open because the panel had focus at the time the
12903        // event was processed. Before the fix, dock_to_preserve was None for
12904        // panels that don't implement pane(), causing the dock to close.
12905        workspace.update_in(cx, |workspace, window, cx| {
12906            assert!(
12907                workspace.right_dock().read(cx).is_open(),
12908                "Dock should stay open when its zoomed panel (without pane()) still has focus"
12909            );
12910            assert!(panel.is_zoomed(window, cx));
12911        });
12912    }
12913}